TISSUE BOX

Abstract

A tissue box includes a housing. One side of the housing is a tissue outlet portion. A tissue outlet is defined in the tissue outlet portion. The tissue outlet is configured for drawing tissues. The tissue outlet includes at least two outlet sections extending on the tissue outlet portion, and an included angle is defined between each two adjacent sections of the at least two outlet sections, so that the current tissue is bent by the at least two outlet sections when a current tissue being partially drawn out from the tissue outlet. The tissue box makes a shape of an exposed portion of each of the tissues being basically consistent, reducing randomness of shapes of the tissues and improving neatness and beauty of the tissue box.

Description

TECHNICAL FIELD

The present disclosure relates to a technical field of tissue holders, and in particular to a tissue box.

BACKGROUND

A tissue box is a box that is convenient to use and ensures tissues stored therein remain free from external contamination. The tissue box generally comprises a box body that is not sealed at a bottom portion thereof and a base configured to seal the bottom portion of the box body. A tissue outlet opening is defined in a top surface of the box body and a cover covers the tissue outlet opening.

Conventional tissue boxes only have a function of storing the tissues, and tissue outlet openings thereof are commonly square, round or strip-shaped. When drawing out the tissues stored therein, it is difficult to control a shape of an exposed portion of a current tissue in the tissue box, which affects an overall appearance of the conventional tissue boxes.

SUMMARY

In view of the above problems, the present disclosure provides a tissue box that solves a problem that a shape of an exposed portion of a current tissue in a conventional tissue box is irregular to affect an appearance of the conventional tissue box after being partially drawn out.

In one aspect, in one embodiment, the present disclosure provides the tissue box that comprises a housing. One side of the housing is a tissue outlet portion. A tissue outlet is defined in the tissue outlet portion. The tissue outlet is configured for drawing tissues. The tissue outlet comprises at least two outlet sections extending on the tissue outlet portion, and an included angle is defined between each two adjacent sections of the at least two outlet sections, so that the tissue is bent by the at least two outlet sections when a current tissue being partially drawn out from the tissue outlet.

In one optional embodiment, at least part of the housing is configured to form a first predetermined pattern together with the current tissue partially drawn out from the tissue outlet, and the housing forms a second predetermined pattern.

In one optional embodiment, a second predetermined pattern is disposed on the housing. The second predetermined pattern is configured to form a first predetermined pattern together with the current tissue partially drawn out from the tissue outlet.

In one optional embodiment, the second predetermined pattern is a human figure, and the tissue outlet enables an exposed portion of the current tissue partially drawn out from the housing to form a skirt or a cape of the human figure.

In one optional embodiment, an edge of the tissue outlet extends toward an interior of the housing to form a first extension portion.

In one optional embodiment, an included angle between an extension direction of the first extension portion and a plane where the tissue outlet portion is located is an acute angle.

In one optional embodiment, an inner wall of the tissue outlet is a smooth curved surface.

In one optional embodiment, supporting ribs are disposed on an inner side of the tissue outlet portion of the housing.

In one optional embodiment, connecting portions are disposed on an outer wall of the housing and the connecting portions are configured to connect to an external component.

In one optional embodiment, the connecting portions are suction cups.

In one optional embodiment, the connecting portions are adhesive pieces.

In one optional embodiment, the tissue box further comprises an adjusting piece. A tissue storage cavity is defined between the adjusting piece and inner surfaces of the housing. The housing comprises a protruding component disposed on an inner side wall of the housing, and the adjusting piece comprises a clamping portion. The clamping portion is allowed to be clamped in the protruding component. The clamping portion is movable with respect to the protruding component in a first direction. When the clamping portion moves with respect to the protruding component in the first direction, the adjusting piece moves along with the clamping portion with respect to the housing in the first direction. When the adjusting piece moves with respect to the housing in the first direction, a volume of the tissue storage cavity accordingly increases or decreases.

In one optional embodiment, the protruding component comprises protruding bars and limiting grooves. Each of the limiting grooves is formed between each two adjacent protruding bars. The clamping portion is allowed to be clamped in any one of the limiting grooves.

In one optional embodiment, the housing comprises a guide portion disposed in the first direction. A guide groove is defined between the guide portion and the housing. The adjusting piece comprises a sliding portion. The sliding portion is slidably connected to the guide groove.

In one optional embodiment, the adjusting piece further comprises a fine-tuning portion and a fine-tuning groove. The fine-tuning groove is disposed around a boundary of the fine-tuning portion. The clamping portion is disposed on the fine-tuning portion.

In one optional embodiment, a dimension of each of the limiting grooves gradually increases from a groove bottom thereof to a groove opening thereof in the first direction.

In one optional embodiment, the clamping portion defines an abutting surface abutting against the protruding component. The abutting surface of the clamping portion is a convex arc surface.

In one optional embodiment, the adjusting piece comprises a limiting portion. The limiting portion comprises a limiting plate and a notch. The notch allows the tissues to pass through.

In one optional embodiment, the housing comprises a cover plate and a main body, and the cover plate is detachably connected to the main body.

In one optional embodiment, the tissue box comprises an expansion piece disposed around the tissue outlet. The expansion piece extends towards an interior of the housing. The expansion piece comprises an expansion portion and a second extension portion. The extension portion is attached to the inner surface of the housing. The expansion portion is flush with the tissue outlet in a direction perpendicular to the tissue outlet portion. The second extension portion smoothly extends from the expansion portion to the interior of the housing.

In the present disclosure, the at least two outlet sections extending on the tissue outlet portion of the housing, and the included angle is defined between each two adjacent sections of the at least two outlet sections, so that an exposed portion of the current tissue is bent by the at least two outlet sections when being partially drawn out from the tissue outlet, and the exposed portion of the current tissue plays a decorative function, avoiding randomness and disorder of a shape of the exposed portion of the current tissue when the current tissue is partially drawn out, and thus improving beauty and neatness of the tissue box.

The above description is only an overview of technical solutions of the present disclosure. Technical means of the present disclosure can be implemented in accordance with the contents of the specification to make the present disclosure more clearly. In order to make the above and other purposes, features and characteristics of the present disclosure more obvious and easy to understand, the specific implementation methods of the present disclosure are listed below.

BRIEF DESCRIPTION OF DRAWINGS

Various advantages and benefits of the present disclosure may become apparent to those of ordinary skill in the art by reading the following detailed description of optional embodiments. The drawings are only for the purpose of illustrating the optional embodiments, and are not considered to be limiting of the present disclosure. Moreover, in the drawings, the same reference numbers refer to the same components.

FIG. 1 is a perspective schematic diagram of a tissue box according to one embodiment of the present disclosure.

FIG. 2A is another perspective schematic diagram of the tissue box according to one embodiment of the present disclosure.

FIG. 2B is a side schematic diagram of the tissue box connected to an external component according to one embodiment of the present disclosure.

FIG. 3 is another perspective schematic diagram of the tissue box according to one embodiment of the present disclosure.

FIG. 4 is another perspective schematic diagram of the tissue box according to one embodiment of the present disclosure.

FIG. 5 is another perspective schematic diagram of the tissue box according to one embodiment of the present disclosure.

FIG. 6 is a perspective schematic diagram of the tissue box according to one embodiment of the present disclosure, where a current tissue therein is partially drawn out.

FIG. 7 is a perspective schematic diagram of the tissue box according to one embodiment of the present disclosure, where the current tissue therein is partially drawn out.

FIG. 8 is a side cross-sectional schematic diagram of the tissue box connected to an external component according to one embodiment of the present disclosure.

FIG. 9 is a perspective schematic diagram of an adjusting piece according to one embodiment of the present disclosure.

FIG. 10 is a side cross-sectional schematic diagram of limiting grooves according to one embodiment of the present disclosure.

FIG. 11 is another perspective schematic diagram of the adjusting piece according to one embodiment of the present disclosure.

FIG. 12 is an enlarged schematic diagram of portion A shown in FIG. 10.

FIG. 13 is a schematic diagram of an expansion piece according to one embodiment of the present disclosure.

Reference numbers in the drawings: 100—tissue box; 1—housing; 11—main body; 111—limiting groove; 1111—groove bottom; 1112—notch; 112—protruding bar; 113—tissue outlet; 1131—outlet section; 114—first extension portion; 12—tissue outlet portion; 121—guide portion; 122—guide groove; 14—cover plate; 15—protruding component; 16—connecting portion; 17—support rib; 18—first predetermined pattern; 181—second predetermined pattern; 19—tissue storage cavity; 2—adjusting piece; 21—fine—tuning portion; 22—fine—tuning groove; 23—limiting portion; 231—notch; 232—limiting plate; 24—sliding portion; 25—clamping portion; 251—abutting surface; 3—expansion piece; 31—expansion portion; 32—second extension portion; 4—current tissue; 5—external component; a—first direction.

DETAILED DESCRIPTION

The following describes embodiments of the technical solutions of present disclosure in detail with reference to the accompanying drawings. The following embodiments are merely used to clearly describe the technical solutions of present disclosure, and do not intend to limit the protection scope of present disclosure.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the present disclosure; the terms “include”, “comprise”, and any variations thereof in the specification and claims of the present disclosure and the above drawings are intended to cover non-exclusive inclusion.

In the description of the embodiments of the present disclosure, the technical terms “first”, “second”, and the like are merely used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating a quantity, a specific order, or a primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present disclosure, “a plurality of” means two or more, unless otherwise clearly and specifically defined.

Reference herein to “embodiment” or “implement” means that a particular feature, structure, or characteristic described in connection with one embodiment or one implement may be included in at least one embodiment of the present disclosure. The appearances of the “embodiment” in various positions in the specification are not necessarily referring to the same embodiment, and are not independent or alternative embodiments mutually exclusive of other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments.

In the description of the present disclosure, the term “and/or” depict relationship between associated objects and there are three relationships thereon. For example, A and/or B may indicate A exists alone, A and B exist at the same time, and B exists alone. The character “/” generally indicates that the associated object is alternative.

In the description of the embodiments of the present disclosure, the term “a plurality of” refers to more than two (including two), similarly, “groups” refers to more than two groups (including two groups), and “pieces” refers to more than two pieces (including two pieces).

In addition, terms such as “central”, “vertical”, “horizontal”, “length”, “with”, “height”, “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, “clockwise”, “counterclockwise”, axial”, “radial”, “circumferential” etc. indicate direction or position relationships shown based on the drawings, and are only intended to facilitate the description of the present disclosure and the simplification of the description rather than to indicate or imply that the indicated device or element must have a specific direction or constructed and operated in a specific direction, and therefore, shall not be understood as a limitation to the present disclosure.

In addition, It should be noted in the description of the present disclosure that, unless otherwise regulated and defined, terms such as “installation,” “bonded,” and “connection” shall be understood in broad sense, and for example, may refer to fixed connection or detachable connection or integral connection; may refer to mechanical connection or electrical connection; and may refer to direct connection or indirect connection through an intermediate medium or inner communication of two elements. For those of ordinary skill in the art, the meanings of the above terms in the present disclosure may be understood according to concrete conditions.

The inventor noticed that a shape of an exposed portion of a tissue in a conventional tissue box is not considered when the tissue is partially drawn out, but simply allows the tissue to be exposed from a tissue opening of the conventional tissue box. After a previous tissue is completely drawn out, a shape of an exposed portion of a current tissue is uncertain and has a strong randomness. When a user places the conventional tissue box in a home environment, the shape of the exposed portion of the current tissue in the conventional tissue box is random, which may affect neatness of a furniture arrangement and affects overall aesthetics of the home environment.

To solve the technical problem mentioned above, the present disclosure provides a tissue box. A tissue outlet, including at least two outlet sections extending on a tissue outlet portion, is defined in the tissue box, and an included angle is defined between each two adjacent sections of the at least two outlet sections, so that a current tissue is bent by the at least two outlet sections when being partially drawn out from a tissue outlet. Therefore, a shape of an exposed portion of the current tissue in the tissue box is basically fixed, thereby reducing a randomness of the shapes of the exposed portion of each of tissues and improving neatness and beauty of the tissue box.

FIG. 1 and FIG. 2A, are perspective schematic diagrams of the tissue box according to one embodiment of the present disclosure. As shown in FIG. 1 and FIG. 2A, the present disclosure provides the tissue box 100 that comprises a housing 1. One side of the housing 1 is a tissue outlet portion. The tissue outlet 113 is defined in the tissue outlet portion 12. The tissue outlet is configured for drawing tissues 4. The tissue outlet 113 comprises the at least two outlet sections 1131 extending in the tissue outlet portion 12, and an included angle is defined between each two adjacent sections 1131 of the at least two outlet sections 1131, so that a current tissue is bent by the at least two outlet sections 1131 when being partially drawn out from the tissue outlet.

The tissue outlet 113 refers to an outlet for drawing out the tissues. The current tissue 4 in the tissue box 100 is partially exposed from the tissue outlet 113. When the user uses the tissue box 100, the user pinches the exposed portion of the current tissue 4 from the tissue outlet 113 and pulls the current tissue outward. After the current tissue 4 is completely drawn out, a next tissue in the tissue box 100 is partially drawn out and exposed from the tissue outlet 113 and is defined as the current tissue 4. It is understood that when the tissue box 100 stores the tissues therein, and when the tissue box is in normal use, there is always the current tissue 4 partially exposed from the tissue outlet 113.

The tissue outlet 113 comprises the at least two outlet sections 1131 extending in the tissue outlet portion 12, and the included angle is defined between each two adjacent sections 1131 of the at least two outlet sections 1131. That is, the at least two outlet sections 1131 form a V-shaped opening or a wavy opening in the tissue outlet portion 12 of the tissue box 100. When the current tissue 4 in the tissue box 100 is exposed through the tissue outlet 113, the exposed portion of the current tissue 4 is bent by the at least two outlet sections 1131, so that the shape of the exposed portion of the current tissue 4 is limited to a certain extent to correspond to a shape of the tissue outlet 113. When the next tissue 4 in the tissue box 100 is partially exposed, a shape of an exposed portion of the next tissue is limited to be same as that of the current tissue 4 by the tissue outlet 113. For instance, in some application scenarios, the at least two outlet sections 1131 comprise more than two outlet sections 1131 extending in the tissue outlet portion 12, and the more than two outlet sections 1131 are disposed at an angle in the tissue outlet portion 12, so that the tissue outlet 113 is wavy in the tissue outlet portion 12. When the current tissue 4 in the tissue box 100 is partially exposed from the tissue outlet 113, the tissue outlet 113 bends the exposed portion of the current tissue 4 into a wave shape. Each time the user uses the tissues 4, the exposed portion of the current tissue 4 partially drawn out from the tissue box 100 is in the wave shape, so that the exposed portion of the current tissue 4 in the tissue box 100 is no longer in an irregular random shape, and the exposed portion of the current tissue 4 has a certain aesthetic appeal, which is conducive to improving the aesthetics of the tissue box 100 during use.

In some embodiments, in order to prevent the at least two outlet sections 1131 disposed at an angle from scratching the current tissue 4 when the current tissue 4 is drawn out, the included angle between each two adjacent outlet sections 1131 of the at least two outlet sections 1131 is chamfered, so that a case that the at least two outlet sections 1131 with a sharp included angle to scratch the current tissue 4 is avoided.

In the present disclosure, the at least two outlet sections 1131 extending in the tissue outlet portion 12 of the housing 1, and the included angle is defined between each two adjacent sections 11131 of the at least two outlet sections 1131, so that the exposed portion of the current tissue 4 is bent by the at least two outlet sections 1131 when being partially drawn out from the tissue outlet 113, and the exposed portion of the current tissue plays a decorative function, avoiding randomness and disorder of the shape of the exposed portion of the current tissue 4 when the current tissue 4 is partially drawn out, and thus improving beauty and neatness of the tissue box 100.

FIGS. 3 and 4 are perspective schematic diagrams of the tissue box according to one embodiment of the present disclosure. FIGS. 5 and 6 are perspective schematic diagrams of the tissue box according to one embodiment of the present disclosure, where a current tissue therein is partially drawn out. As shown in FIGS. 3-6, at least part of the housing 1 is configured to form a first predetermined pattern 18 together with the current tissue 4 partially drawn out from the tissue outlet 113.

The first predetermined pattern 18 refers to a pre-set pattern. For example, in some embodiments, the first predetermined pattern 18 is a dancing girl wearing a skirt, or the first predetermined pattern 18 is a superman wearing a cape. Specifically, when the first predetermined pattern 18 is the dancing girl wearing the skirt, the dancing girl wearing the skirt is formed by the at least part of the housing 1 and the exposed portion of the current tissue 4 partially drawn out from the tissue outlet 113. The exposed portion of the current tissue 4 partially drawn out from the tissue outlet 113 forms the skirt of the dancing girl. The at least part of the housing 1 forms a body of the dancing girl. When the first predetermined pattern 18 is the superman wearing the cape, the at least part of the housing 1 and the exposed portion of the current tissue 4 partially drawn out from the tissue outlet 113 form the superman wearing the cape. The exposed portion of the current tissue 4 partially drawn out from the tissue outlet 113 forms the cape of the superman, and the at least part of the housing 1 forms a body of the superman. Specifically, a shape of the housing 1 is directly molded in a human figure or other shape so as to form the first predetermined pattern 18 together with the exposed portion of the current tissue 4. Alternatively, a human body shaped bulge, a human body shaped recess, etc. or bulge or recess with other shapes are disposed on the housing 1, so as to from the first predetermined pattern 18 together with the exposed portion of the current tissue 4.

As shown in FIGS. 3-6, in some embodiments, a second predetermined pattern 181 is disposed on the housing 1. The second predetermined pattern 181 is configured to form the first predetermined pattern 18 together with the current tissue 4 partially drawn out from the tissue outlet.

The second predetermined pattern 181 disposed on the housing 1 may be a flat pattern printed by inkjet, a sticker attached to the housing 1, or a relief disposed on the housing 1. In addition, the housing 1 itself may be configured as the second predetermined pattern 181. For instance, the housing may be in a shape of a cartoon character, an animal, a human figure, etc. It should be understood by those skilled in the art that whether the housing 1 itself is served as the second predetermined pattern 181 or an attachment is added to the housing 1 as the second predetermined pattern 181, both of the two are included in the scope of providing the second predetermined pattern 181 disposed on the housing 1. It should be noted that the second predetermined pattern 181 may include design elements that are combined or superimposed together, so that the second predetermined pattern 181 forms the first predetermined pattern 18 together with the current tissue 4 partially drawn out from the tissue outlet 113.

In some embodiments, the second predetermined pattern 181 is the dancing girl printed on the tissue outlet portion 12 of the housing 1. When there is the current tissue 4 partially drawn out from the tissue outlet 113, the exposed portion of the current tissue 4 forms the skirt of the dancing girl. The at least part of the housing 1 forms a body of the dancing girl. The dancing girl wearing the skirt is the first predetermined pattern 18. In another embodiment, the second predetermined pattern 181 is the superman printed on the tissue outlet portion 12 of the housing 1. When there is the current tissue 4 partially drawn out from the tissue outlet 113, the exposed portion of the current tissue 4 forms the cape of the superman. At this time, the superman wearing the cape is the first predetermined pattern 18.

By providing the second predetermined pattern 181 on the housing 1, the second predetermined pattern 181 and the current tissue 4 partially drawn out from the tissue outlet 113 together form the first predetermined pattern 18, thereby improving the aesthetics of the tissue box 100 of the present disclosure.

As shown in FIGS. 2A-6, in some embodiments, the second predetermined pattern 181 is a human figure, and the tissue outlet enables the exposed portion of the current tissue partially drawn out from the housing 1 to form the skirt or the cape of the human figure.

It is understood that the current tissue 4 partially drawn out from the tissue outlet 113 generally presents a state similar to a cloth fluttering in the wind. Through the tissue outlet 113 including the at least two outlet sections 1131 extended in the tissue outlet portion 12, the current tissue 4 partially drawn out from the tissue outlet 113 is bent by at least the two outlet sections 1131, so that the current tissue 4 partially drawn out from the tissue outlet 113 is similar to the cloth fluttering in the wind in appearance. By providing the second predetermined pattern 181 on the housing 1, the second predetermined pattern 181 and the current tissue 4 partially drawn out from the tissue outlet 113 jointly form the first predetermined pattern 18, so that the appearance of the tissue box 100 is more interesting.

FIG. 8 is a side cross-sectional schematic diagram of the tissue box connected to an external component according to one embodiment of the present disclosure. As shown in FIGS. 1 and 7, in some embodiment, an edge of the tissue outlet 113 extends toward an interior of the housing 1 to form a first extension portion 114.

When the current tissue 4 is completely drawn out, and the next tissue 4 in the tissue box 100 is drawn out by driving of the current tissue 4 through the tissue outlet 113, if the next tissue in the tissue box 100 is far away from the tissue outlet 113, the next tissue may fall back into the tissue box 100 from the tissue outlet 113, which is inconvenient for the user to continuously draw out the tissues for use. By providing the first extension portion 114, the next tissue in the tissue box 100 is guided in advance and drawn out more easily by the first extension portion 114 when being drawn out. At the same time, the first extension portion 114 further supports the next issue to prevent the next tissue from falling back into the tissue box 100 and being scratched by the tissue outlet 113, thereby ensuring the integrity of the next tissue.

As shown in FIG. 8, in some embodiments, an included angle between an extension direction of the first extension portion 114 and a plane where the tissue outlet portion 12 is located is an acute angle.

The included angle between the extension direction of the first extension portion 114 and the plane where the tissue outlet portion 12 is located is the acute angle. When the next tissue in the tissue box 100 is partially drawn out after being guided by the first extension portion 114, the next tissue is converted into the current tissue 4. At this time, an orientation of the current tissue 4 is affected by the extension direction of the first extension portion 114. If the first extension portion 114 extends perpendicular to the tissue outlet portion 12, the exposed portion of the current tissue 4 is prone to stand upright, which is not conducive to forming the first predetermined pattern 18 with the housing 1. For example, as shown in FIG. 6, when the second predetermined pattern 181 disposed on the housing 1 is the dancing girl, the first predetermined pattern 18 that is reasonable and beautiful should be the dancing girl with the skirt that is tilted in a non-vertical direction and covers a lower body of the dancing girl. At this time, if the exposed portion of the current tissue 4113 is disposed vertically upward, then in the first predetermined pattern 18 formed in conjunction with the second predetermined pattern 181, a direction of the skirt of the dancing girl is perpendicular to the lower body of the dancing girl, which greatly reduces the aesthetics and interest of the first predetermined pattern 18. Therefore, by setting the included angle between the extension direction of the first extension portion 114 and the plane where the tissue outlet portion 12 is located to be the acute angle, the direction of the exposed portion of the current tissue 4 is tilted. Thus, the exposed portion of the current tissue cooperates with the housing 1 to form the first predetermined pattern 18 that is beautiful and reasonable.

As shown in FIGS. 1 and 7, in some embodiments, an inner wall of the tissue outlet 113 is a smooth curved surface.

The inner wall of the tissue outlet 113 refers to an area of the tissue outlet 113 directly contacts the current tissue 4 in the tissue box 100 when the current tissue 4 passes through the tissue outlet 113. By configuring the inner wall of the tissue outlet 113 as the smooth curved surface, there is no sharp edges nor corners between the tissue outlet 113 and one side of the tissue outlet portion 12 facing an interior of the housing 1, which prevents the current tissue 4 in the tissue box 100 to be scratched when being drawn out. By setting the inner wall of the tissue outlet 113 as the smooth curved surface, it is not easy to scratch the tissues when the use continuously draws out the tissues for use, which can ensure the integrity of the tissues, enables the user to stably draw out a complete tissue from the tissue box 100, and improves the user experience.

As shown in FIG. 2A, in some embodiments, supporting ribs 17 are disposed on an inner side of the tissue outlet portion 17 of the housing 1.

In the present disclosure, four supporting ribs 17 are disposed on an inner wall of the tissue outlet portion 17, (i.e., the inner side of the tissue outlet portion 17) of the housing 1. The four support ribs 17 are disposed in a circular array to restrict a sliding of the tissues in the tissue box 100. Of course, the number of the support ribs 17 is allowed to be flexibly set according to actual needs, for example, 1, 2, 3, 4 or more support ribs 17 may be disposed, as long as the support ribs 17 play a role in abutting and stabilizing the tissues, which are not limited thereto.

In some other embodiments, the support ribs 17 are, for example, flat plate structures, fin structures, or wave structures, etc., to abut against the tissues to prevent the tissues from sliding freely in the tissue box 100. At the same time, in order to further improve a restriction effect of the support ribs 17 on a position of the tissues, those skilled in the art should understand that rubber anti-slip bumps are disposed on one side of each of the support ribs 17 facing the tissues according to actual needs, or the support ribs 17 made of anti-slip rubber are used, which are not limited thereto.

It is noted that when the tissues are located in the tissue box 100, the support ribs 17 abuts surfaces of the tissues, and the support ribs 17 restrict a displacement of the tissues in the tissue box 100 to a certain extent. When the user draws out the current tissue, other tissues in the tissue box 100 is not easy to slide in the tissue box 100 since the tissue are abutted by the support ribs 17. When the user draws out the current tissue 4, the other tissues in the tissue box 100 do not slide, so that the current tissue is smoothly drawn out.

FIG. 2B is a side schematic diagram of the tissue box connected to an external component according to one embodiment of the present disclosure. As shown in FIGS. 2A and 2B, in some embodiments, connecting portions 16 are disposed on an outer wall of the housing 1 and the connecting portion is configured to connect to an external component 5.

The connecting portions 16 refer to any structures that are able to establish a connection relationship with the external component 5. For example, the connecting portions 16 are hooks, and the external component 5 is a buckle. The housing 1 of the tissue box 100 is fixed by connecting the connecting portions 16 with the external component 5.

In some application scenarios, the tissue box 100 is easy to fall due to shaking, etc., which easily damages the tissue box 100 and pollutes the tissues therein. For example, when the tissue box 100 is used in a car, the tissue box 100 is easy to fall during a driving process of the car. Therefore, by providing the connecting portions 16 for connecting the external component 5 on the outer wall of the housing 1, when the tissue box 100 needs to be fixed to avoid falling, it is only necessary to connect and fix the connecting portions 16 with any external component 5 in an external scene to avoid accidental falling of the tissue box 100, which is convenient for the user to use.

As shown in FIGS. 2A and 2B, in some embodiments, the connecting portions 16 are suction cups.

The suction cups refer to circular flexible structures with a certain curvature, which are connected to the external component by pushing air between each of the suction cup and a connection area of the external component 5.

In one embodiment, the connecting portions 16 are four suction cups, which are respectively disposed at four corners of an outer wall of one side of the housing 1. The external component 5 is, for example, a desktop. When the connecting portions 16 are connected to the external component 5, the four suction cups enable the one side of the housing of the tissue box 100 to connect to the desktop and ensure that the tissue box is evenly stressed.

According to the numbers poof the connecting portions, positions of the connecting portions 16 may be located on outer walls of different sides of the housing 1 to enable the housing 1 being fixed in multiple directions at the same time, so that after the connecting portions 16 are connected to the external part 5, the tissue box 100 is more firmly fixed and is not easy to fall off from the external component 5.

By providing the suction cups as the connecting portions 16, the connecting portions 16 are simpler and more convenient to connect to the external component 5. For example, when the external component 5 is the desktop, it is only necessary to place the tissue box 100 on the desktop and press the suction cups on the desktop, so that the connecting portions 16 are attached to the desktop to realize a fixed connection.

As shown in FIGS. 2A and 2B, in some embodiments, the connecting portions are adhesive pieces.

The adhesive pieces refer to structures made of adhesive materials, such as double-sided adhesive, foam adhesive, or adhesive glue, etc. In order to realize an adhesive effect, the connecting portions 16 should have a sufficient size to exert the adhesive performance of the adhesive pieces.

By configuring the adhesive pieces as the connecting portions 16, connections between the connecting portions on the tissue box 100 and the external component 5 is more convenient and stable. It only necessary to adhere the connecting portions to the external component 5 to realize the adhesive connection effect of the connecting portions, and the connections thereof are more convenient.

For ease of explanation, a first direction is indicated by an arrow a in the accompanying drawings. As shown in FIGS. 1 and 2A, in some embodiments, the tissue box further comprises an adjusting piece 2. A tissue storage cavity 19 is defined between the adjusting piece 2 and inner surfaces of the housing 1. The housing 1 comprises a protruding component 15 disposed on an inner side wall of the housing 1, and the adjusting piece 2 comprises a clamping portion 25. The clamping portion 25 is allowed to be clamped in the protruding component 15. The clamping portion 25 is movable with respect to the protruding component 15 in the first direction a. When the clamping portion 25 moves with respect to the protruding component 15 in the first direction a, the adjusting piece 2 moves along with the clamping portion 25 with respect to the housing 1 in the first direction a. When the adjusting piece 2 moves with respect to the housing 1 in the first direction a, a volume of the tissue storage cavity 19 accordingly increases or decreases.

Specifically, in one case, when a pack of the tissues of a small size needs to be stored, the adjusting piece 2 is moved in the first direction a, and the volume of the tissue storage cavity 19 is reduced until the volume of the tissue storage cavity 19 is adjusted to match the size of the pack of the tissues to be stored. When the pack of the tissues of a large size needs to be stored, the adjusting piece 2 is moved in a direction opposite to the first direction a, the volume of the tissue storage cavity 19 is increased, and the volume of the tissue storage cavity 19 is adjusted to match the size of the pack of tissues to be stored. Alternatively, in another case, when the pack of the tissues of the small size needs to be stored, the adjusting piece 2 is moved in the direction opposite to the first direction a, and the volume of the tissue storage cavity 19 is increased. When the pack of the tissues of the large size needs to be stored, the adjusting piece 2 is moved in the first direction a, the volume of the tissue storage cavity 19 is reduced.

The clamping portion 25 of the adjusting piece 2 is clamped in the protruding component 15 disposed on the inner wall of the housing 1. When the adjusting piece 2 moves in the first direction a, the clamping portion 25 is clamped with the protruding component 15 to limit a movement of the adjusting piece 2 in the first direction a, and provide a clamping hint when the adjusting piece 2 moves in the first direction a, so that the user is not likely to slide the adjusting piece 2 by mistake. When the adjusting piece 2 moves to a suitable position and the volume of the tissue storage cavity 19 matches the size of the pack of the tissues, a position of the adjusting piece 2 is fixed by the clamping between the clamping portion 25 and the protruding component 15.

For instance, the clamping portion 25 and the protruding component 15 are respectively a bulge and grooves defined by blocks. The protruding component 15 is distributed along the first direction a. When the adjusting piece 2 moves in the first direction a, the clamping portion 25 is clamped in the grooves in sequence, so that the adjusting piece 2 realizes segmented movement in the first direction a, which is convenient for the user to control the position of the adjusting piece 2.

By providing the adjusting piece 2 and the protruding component 15, the adjusting piece 2 is movable in the first direction a to adjust the volume of the tissue storage cavity 19. At the same time, the clamping portion 25 of the adjusting piece 2 is clamped in the protruding component 15 disposed on the inner wall of the housing 1, providing a clamping hint to the user for the movement of the adjusting piece 2, which helps the user to accurately control the movement of the adjusting piece 2 in the first direction a, and is convenient for adjusting the volume of the tissue storage cavity 19.

As shown in FIGS. 1 and 8, in some embodiments, the protruding component 15 comprises protruding bars 112 and limiting grooves 111. Each of the limiting grooves 111 is formed between each two adjacent protruding bars 112. The clamping portion 25 is allowed to be clamped in any one of the limiting grooves 111.

For example, the protruding bars 112 may be rectangular bars or smooth strip structures each with an arc-shaped outer surface. In order to allow the limiting grooves 111 defined by the protruding bars 112 to be better clamped in the clamping portion 25, a setting direction of the protruding bars 112 is parallel to the tissue outlet portion 12 and is perpendicular to the first direction a.

By providing the protruding bars 112 and defining each of the limiting grooves 111 between each two adjacent protruding bars 112, the clamping portion 25 is allowed to be clamped in any one of the limiting grooves 111. The limiting grooves 111 provide clamping locations of the clamping portion when the adjusting piece 2 moves in the first direction a. When the adjusting piece 2 moves in the first direction a, the clamping hint provided to the user is obvious, and a movement stroke of the adjusting piece 2 is easier to be accurately controlled by the user, so that the user is able to accurately adjust the volume of the tissue storage cavity 19.

FIG. 8 is a perspective schematic diagram of the adjusting piece 2 according to one embodiment of the present disclosure. As shown in FIGS. 1 and 8-9, in some embodiments, the housing 1 comprises a guide portion 121 disposed in the first direction a. A guide groove 122 is defined between the guide portion 121 and the housing. The adjusting piece comprises a sliding portion 24. The sliding portion 24 is slidably connected to the guide groove 122.

Specifically, the guide groove 122 is defined between the guide portion 121 and the housing 1 in the first direction a. The sliding portion 24 on the adjusting piece 2 is slidably connected to the guide groove 122, and a size and a shape of the sliding portion 24 match a size and a shape of the guide groove 122.

By providing the guide groove 122 and the sliding portion 24, the adjusting piece 2 is guided by the sliding portion 24 and the guide groove 122 when moving in the first direction a, and it is not easy for the adjusting piece 2 to fall off during the movement. Therefore, when adjusting the volume of the tissue storage cavity 19, the tissue box 100 of the present disclosure is stable.

As shown in FIGS. 1 and 8, in some embodiments, the adjusting piece 2 further comprises a fine-tuning portion 21 and a fine-tuning groove 22. The fine-tuning groove 22 is disposed around a boundary of the fine-tuning portion 221. The clamping portion 25 is disposed on the fine-tuning portion 21.

In the embodiment of the present disclosure, the fine-tuning groove 22 enables the fine-tuning portion 21 to deform. The clamping portion 25 is disposed on the fine-tuning portion 21. when the adjusting piece 2 moving in the first direction a, the fine-tuning portion 21 is properly deformed so that the clamping portion 25 is allowed to pass over the protruding bars 112 of the protruding component 15, so a position of the clamping portion is switched from a current limiting groove 111 to a next limiting groove 111. Specifically, when the clamping portion 25 contacts one of the protruding bars 112, the fine-tuning groove 22 enable the fine-tuning portion 21 to form, and the one of the protruding bars 112 abuts against the fine-tuning portion 21 to push the fine-tuning portion 21 away from the pushed away from the housing 1. When the clamping portion 25 enters the next limiting groove 111, the fine-tuning portion 21 approaches the housing 1 and resets to an original position.

By providing the fine-tuning portion 21 and the fine-tuning groove 22, the clamping portion 25 disposed on the fine-tuning portion 21 has a certain deformation and activity space, which is conducive to the movement of the adjusting piece 2 in the first direction a. Therefore, it is not easy for the clamping portion 25 disposed on the adjusting piece 2 to be stuck by any one of the limiting grooves 111, so the clamping portion 25 is able to continue to move for adjustment.

FIG. 9 is a side cross-sectional schematic diagram of the limiting grooves 111 according to one embodiment of the present disclosure. As shown in FIGS. 1 and 9, in some embodiments, a dimension of each of the limiting grooves 111 gradually increases from a groove bottom 1111 thereof to a groove opening 1112 thereof in the first direction a.

The dimension of each of the limiting grooves 111 in the first direction a is a distance between two inner walls of each of the limiting grooves 111 in the first direction a. The size of each of the limiting grooves 111 in the first direction a gradually increases from the groove bottom 1111 of each of the limiting grooves 111 to the groove opening 1112 of each of the limiting groove 111. That is, the dimension of each of the limiting grooves 111 is the minimum at the groove bottom 1111 thereof fin the first direction a, and the farther away from the groove bottom 1111 thereof and closer to the groove opening 1112 thereof, the dimension of each of the limiting grooves 111 gradually increases in the first direction a. It is understood that a shape of each of the limiting grooves 111 is in an outward expansion shape, and a cross section of each of the protruding bars 112 taking along a plane parallel to the first direction is a trapezoidal cross section. The cross section of each of the protruding bars 112 is perpendicular to the tissue outlet portion 12.

When the clamping portion 25 moves from the current limiting groove 111 to the next limiting groove 111, that is, when the clamping portion 25 moves away from a current protruding bar 112 corresponding to the current limiting groove 111, the current protruding bar 112 provides a slope for the clamping portion 25, which helps to reduce friction force of the clamping portion 25 when moving between two adjacent limiting grooves 111, making it easier for the clamping portion 25 to enter the next limiting groove 111, and facilitating the smooth movement of the adjusting piece 2, so that the user is able to adjust the volume of the tissue storage cavity 19.

FIG. 10 is another perspective schematic diagram of the adjusting piece 2 according to one embodiment of the present disclosure. FIG. 11 is an enlarged schematic diagram of portion A shown in FIG. 10. As shown in FIGS. 1 and 11-12, in some embodiments, the clamping portion 25 defines an abutting surface 251 abutting against the protruding component 15. The abutting surface 251 of the clamping portion 25 is a convex arc surface.

The abutting surface 251 of the clamping portion 25 is a convex arc surface. That is, the abutting surface 251 protrudes outward toward the protruding component 15 to form the convex arc surface, so that a portion where the clamping portion 25 contacts the protruding component 15 is the convex arc surface. Namely, the abutting surface 251 is clamped with the protruding component 15.

When the clamping portion 25 is clamped with the protruding component 15, the abutting surface 251 that is the convex arc surface is clamped in any one of the limiting groove 111. When the adjusting piece 2 moves, the abutting surface 251 of the clamping portion 25 abuts against the protruding bars 112 in sequence. The abutting surface 251 that is the convex arc surface allows the clamping portion 25 to be easily separated from the current limiting groove 111 and enter the next limiting groove 111 as the adjusting piece 2 moves.

In one embodiment of the present disclosure, the dimension of each of the limiting grooves 111 gradually increase from the groove bottom 1111 of each of the limiting grooves 111 to the groove opening 1112 of each of the limiting grooves 111 in the first direction a, and the clamping portion 25 comprises the abutting surface 251 for clamping with the protruding component 15, so that contact portions between the clamping portion 25 and the protruding component 15 are respectively the convex arc surface and the slope, which are conducive to smooth movement and position switching of the clamping portion 25 between the limiting grooves 111.

When the clamping portion 25 is clamped with the protruding component 15, if contact surfaces thereof are flat surfaces, then when the adjusting piece 2 moves in the first direction a, the clamping connection between the clamping portion 25 and the protruding component 15 is tight and stable, and the clamping portion 25 is difficult to separate from the current limiting groove 111 defined by the protruding component 15, which is not conducive to the smooth movement of the adjusting piece 2. Therefore, by providing the abutting surface 251 for clamping with the protruding component 15 and configuring the abutting surface 251 as the convex arc surface, the adjusting piece 2 is allowed to smoothly move in the first direction a.

As shown in FIGS. 1 and 9, in some embodiments, the adjusting piece 2 comprises a limiting portion 23. The limiting portion 23 comprises a limiting plate 232 and a notch 231. The notch 231 allows the tissues to pass through. The notch 231 provides a passage for the tissues in the tissue box 100 to the tissue outlet 113. Each of the tissues is allowed to pass through the notch 231 and be drawn out from the tissue outlet 113. In the embodiment of the present disclosure, the notch 231 is an arc-shaped notch 231. By setting the arc-shaped notch 231, each of the tissues is not easily scratched by the notch 231 when passing through the notch 231. Further, the arc-shaped notch 231 ensures that each of the tissues are intact when each of the tissues is drawn out. In some embodiments, the notch 231 is a strip-shaped notch or a square-shaped notch, etc., which is not particularly limited thereto.

The limiting plate 232 is configured to abut against the tissues in the tissue box 100 to limit the position of the tissues. The tissues in the embodiment of the present disclosure refer to a tissue package composed of stacked tissues. When the user draws out the current tissue, the current tissue is subjected to a pulling force and is prone to slide in the tissue box 100. By providing the limiting plate 232 abutting against the tissues, the movement of the current tissue in the tissue box 100 is limited, so that the user is able to smoothly draw out the current tissue. The current tissue does not slide, so the current tissue is drawn out normally. It is understood that a cavity formed between the limiting plate 232 and the inner walls of the housing 1 is the tissue storage cavity 19 for storing the tissues. When the volume of the tissue storage cavity 19 is adjusted to be consistent with the size of the tissues, the limiting plate 232 abuts against the tissues.

As shown in FIG. 1, in some embodiments, the housing 1 comprises a cover plate 14 and a main body 11, and the cover plate 14 is detachably connected to the main body 11.

In the embodiment of the present disclosure, two side edges of the cover plate 14 are snapped on the main body 11. The cover plate 14 is detached to expose the tissue storage cavity 19 when it is necessary to put the tissues into the tissue storage cavity 19 in the housing 1, which is convenient for putting the tissues. At the same time, after the cover plate 14 is detached, the user can more conveniently slide the adjusting piece 2 to adjust the volume of the tissue storage cavity 19. In some embodiments, the cover plate 14 and the main body 11 are connected by bonding or other methods.

FIG. 12 is a schematic diagram of an expansion piece 3 according to one embodiment of the present disclosure. As shown in FIGS. 1 and 12, in some embodiments, the tissue box 100 comprises an expansion piece 3 disposed around the tissue outlet 113. The expansion piece 3 extends towards the interior of the housing 1. The expansion piece 3 comprises an expansion portion 31 and a second extension portion 32. The extension portion 31 is attached to the inner surface of the housing 1. The expansion portion 31 is flush with the tissue outlet in a direction perpendicular to the tissue outlet portion 12. The second extension portion 32 smoothly extends from the expansion portion 31 to the interior of the housing 1.

The expansion portion 31 and the housing 1 are bonded by glue. In the embodiment of the present disclosure, the expansion portion 31 is disposed around the tissue outlet 113, and do not block the tissue outlet 113, so that each of the tissues is allowed to be drawn out from the tissue storage cavity 19 through the tissue outlet 113.

The second extension portion 32 smoothly extends from the expansion portion 31 to the interior of the housing 1. In the embodiment of the present disclosure, the second extension portion 32 smoothly bulges from the expansion portion 31 to the interior of the housing 1, forming a smooth crater-like structure. The second extension portion 32 constitutes a guide passage leading to the tissue outlet 113 in the housing 1. When the next tissue in the housing 1 is drawn out, it passes through the guide passage formed by the second extension portion 32 to reach the tissue outlet 113, and then is drawn out from the tissue outlet 113.

In some cases, the expansion portion 31 and the second extension portion 32 are integrally formed.

By providing the expansion piece 3 including the expansion portion 31 and the second extension portion 32 on the inner surface of the tissue outlet portion facing the interior of the housing 1, each of the tissues in the tissue storage cavity 19 of the tissue box 100 is guided by the expansion piece 3 to reach the tissue outlet 113 when being drawn out, so as to avoid scratching the tissues. At the same time, by the second extension portion 32 extending smoothly in the interior of the housing 1, the tissues are positioned in place by friction between the second extension portion 32 when not drawn out, and are not easy to out of the housing 1, so that the user is able to draw out the tissues for use at any time.

In the present disclosure, when the tissue box 100 is in use, the current tissue 4 in the tissue storage cavity 19 of the housing 1 of the tissue box 100 is bent by the at least two outlet sections 1131 to form a specific shape when being partially drawn out from the tissue outlet 113 including the at least two outlet sections 1131, thereby reducing the randomness of the shape of the exposed portion of the current tissue 4 and improving the neatness and aesthetics of the tissue box 100. At the same time, the exposed portion of the current tissue 4 forms the first predetermined pattern 18 together with the second predetermined pattern 181 disposed on the housing 1. For example, the exposed portion of the current tissue 4 bent by the at least two outlet sections 1131 and the dancing girl disposed on the housing 1 jointly form the dancing girl wearing the skirt, which improves the appearance and interesting of the tissue box 100. At the same time, by the adjusting piece 2 disposed in the tissue box 100, the volume of the tissue storage cavity 19 is adjusted by sliding the adjusting piece 2 on the inner surface of the housing 1 of the tissue box 100 of the present disclosure. When the user needs to put the pack of tissues with a specific size into the tissue box 100, the volume of the tissue storage cavity 19 is adjusted so that the tissue storage cavity 19 in the tissue box 100 is adapted to the size of the pack of the tissues. The tissues stored in the tissue box 100 are not easy to slide, which is convenient for users to draw out the tissues.

The above-mentioned embodiments are only used to illustrate technical solutions of the present disclosure, but not to limit the present disclosure. Although the present disclosure has been described in detail with reference to the foregoing embodiments. It should be understood that those of ordinary skill in the art are still able to modify the technical solutions described in the foregoing embodiments, or equivalently replace some of the technical features in the foregoing embodiments, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from spirit and scope of the technical solutions of the embodiment of the present disclosure. In particular, as long as there is no structural conflict, the various technical features mentioned in each of the embodiments can be combined in any way. The present disclosure is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A tissue box, comprising a housing; wherein one side of the housing is a tissue outlet portion, a tissue outlet is defined in the tissue outlet portion, and the tissue outlet is configured for drawing tissues;wherein the tissue outlet comprises at least two outlet sections extending in the tissue outlet portion, and an included angle is defined between each two adjacent sections of the at least two outlet sections, so that a current tissue is bent by the at least two outlet sections when being partially drawn out from the tissue outlet.

2. The tissue box according to claim 1, wherein at least part of the housing is configured to form a first predetermined pattern together with the current tissue partially drawn out from the tissue outlet, and the housing forms a second predetermined pattern.

3. The tissue box according to claim 1, wherein a second predetermined pattern is disposed on the housing, and the second predetermined pattern is configured to form a first predetermined pattern together with the current tissue partially drawn out from the tissue outlet.

4. The tissue box according to claim 3, wherein the second predetermined pattern is a human figure, and the tissue outlet enables an exposed portion of the current tissue partially drawn out from the housing to form a skirt or a cape of the human figure.

5. The tissue box according to claim 1, wherein an edge of the tissue outlet extends toward an interior of the housing to form a first extension portion.

6. The tissue box according to claim 5, wherein an included angle between an extension direction of the first extension portion and a plane where the tissue outlet portion is located is an acute angle.

7. The tissue box according to claim 5, wherein an inner wall of the tissue outlet is a smooth curved surface.

8. The tissue box according to claim 1, wherein supporting ribs are disposed on an inner side of the tissue outlet portion of the housing.

9. The tissue box according to claim 1, wherein connecting portions are disposed on an outer wall of the housing, and the connecting portions are configured to connect to an external component.

10. The tissue box according to claim 9, wherein the connecting portions are suction cups.

11. The tissue box according to claim 9, wherein the connecting portions are adhesive pieces.

12. The tissue box according to claim 1, wherein the tissue box further comprises an adjusting piece, a tissue storage cavity is defined between the adjusting piece and inner surfaces of the housing, the housing comprises a protruding component disposed on an inner side wall of the housing, the adjusting piece comprises a clamping portion, the clamping portion is allowed to be clamped in the protruding component, and the clamping portion is movable with respect to the protruding component in a first direction; wherein when the clamping portion moves with respect to the protruding component in the first direction, the adjusting piece moves along with the clamping portion with respect to the housing in the first direction;wherein when the adjusting piece moves with respect to the housing in the first direction, a volume of the tissue storage cavity accordingly increases or decreases.

13. The tissue box according to claim 12, wherein the protruding component comprises protruding bars and limiting grooves, each of the limiting grooves is formed between each two adjacent protruding bars, and the clamping portion is allowed to be clamped in any one of the limiting grooves.

14. The tissue box according to claim 12, wherein the housing comprises a guide portion disposed in the first direction, a guide groove is defined between the guide portion and the housing, the adjusting piece comprises a sliding portion, and the sliding portion is slidably connected to the guide groove.

15. The tissue box according to claim 13, wherein the adjusting piece further comprises a fine-tuning portion and a fine-tuning groove, the fine-tuning groove is disposed around a boundary of the fine-tuning portion, and the clamping portion is disposed on the fine-tuning portion.

16. The tissue box according to claim 1, wherein a dimension of each of the limiting grooves gradually increases from a groove bottom thereof to a groove opening thereof in the first direction.

17. The tissue box according to claim 13, wherein the clamping portion defines an abutting surface abutting against the protruding component, and the abutting surface of the clamping portion is a convex arc surface.

18. The tissue box according to claim 12, wherein the adjusting piece comprises a limiting portion, the limiting portion comprises a limiting plate and a notch; the notch allows the tissues to pass through.

19. The tissue box according to claim 1, wherein the housing comprises a cover plate and a main body, and the cover plate is detachably connected to the main body.

20. The tissue box according to claim 12, wherein the tissue box comprises an expansion piece disposed around the tissue outlet, the expansion piece extends towards an interior of the housing, the expansion piece comprises an expansion portion and a second extension portion, the extension portion is attached to an inner surface of the housing, the expansion portion is flush with the tissue outlet in a direction perpendicular to the tissue outlet portion, and the second extension portion smoothly extends from the expansion portion to the interior of the housing.