Patent Application
20250155125
This application claims the priority benefits of China application serial no. 202311501925.X, filed on Nov. 10, 2023. The entirety of the above-mentioned patent application is hereby incorporated by reference herein and made a part of this specification.
The present invention relates to the technical field of heating equipment, and in particular to a fire pit.
As a tool for heating and cooking, fire pits are often used at home or outdoors. The earliest fire pits were made of mud. Although they had good thermal insulation properties, they had shortcomings such as slow heat transfer and easy damage. With the development of the times, they were gradually replaced by iron, copper, stainless steel alloys and other materials.
In addition to material improvements, modern fire pits mainly improve the structure to address the problem of complete combustion of fuel. For example, China patent serial no. CN215175237U discloses a wood stove, including a furnace body, a firewood bracket for supporting combusted fuel, an air volume adjustment mechanism used to adjust the air inlet volume, and firewood ash receiving assembly. The furnace body is constructed as a cylindrical structure with one end closed and one end opened. The side wall of the furnace body is provided with a number of air inlets. The air volume adjustment mechanism is movably connected to the air inlet of the furnace body, to adjust the opening of the air inlet. The firewood ash receiving assembly is arranged in the furnace body, and the firewood bracket is removably assembled in the furnace body and located above the air inlet.
Fuel is added onto the firewood bracket for combustion through the open end of the furnace body, which is more convenient to use. The several air inlets enable air to be supplied to the combustion chamber more quickly and evenly, so that the fuel can be fully burned. However, the above-mentioned furnace body is processed in one piece, which not only requires high-cost production equipment, but is also inconvenient to carry, which limits its application scenarios.
The information disclosed in this Background section is only for enhancement of understanding of the background of the described technology and therefore it may contain information that does not form the prior art that is already known to a person of ordinary skill in the art. Further, the information disclosed in the Background section does not mean that one or more problems to be resolved by one or more embodiments of the disclosure was acknowledged by a person of ordinary skill in the art.
In order to solve the shortcomings of the high-cost production equipment and being inconvenient to be carried of the existing fire pit processed in one piece, an embodiment of the invention provides a fire pit including:
In another embodiment, the wall body is in the shape of an isosceles trapezoidal plate, and the length of an upper side of the isosceles trapezoidal plate is greater than the length of a lower side of the isosceles trapezoidal plate. By configuring the wall body to be an isosceles trapezoid, the entire fire pit has a tapered shape from top to bottom, which on the one hand facilitates adding fuel into the chamber and on the other hand saves covered area.
In another embodiment, the bearing plate is formed in one piece and has a surrounding frame and a four-sided taper portion connected to the surrounding frame. This arrangement makes the structure of the bearing plate firmer.
In another embodiment, the bearing plate has a plurality of reinforcing ribs, the four-sided taper portion has four triangular surfaces and an apex area, and the reinforcing rib is located in a middle area of the triangular surface and extends in a direction from the apex area to the surrounding frame. The reinforcing ribs are beneficial to the stability of the bearing plate and prevent the bearing plate from deforming or collapsing due to excessive fuel weight.
In another embodiment, the wall body has an outer wall and an inner wall, the inner wall faces the chamber, the inner wall is fixed on an inner surface of the outer wall and exposes an upper edge portion and two side edge portions of the inner surface, the two side edge portions are opposite to each other and connected to the upper edge portion, a gap space is between the inner wall and the inner surface of the outer wall, a first vent is provided in an upper side area of the inner wall, and the first vent communicates with the gap space. The gap space between the outer wall and the inner wall forms a second flow channel. When the particles formed by incomplete combustion of fuel at the bottom of the chamber flow upward, the particles come into contact with the oxygen flowing out of the second flow channel, thereby burning again, ensuring that the fuel is fully utilized. In addition, the double-layered wall body also has a heat-insulating effect, preventing users from being burned by accidentally touching the wall body.
In another embodiment, the bearing plate abuts against the bottom edge of a lower side area of the inner wall, and the pressing frame abuts against the upper edge portion of the inner surface of the outer wall.
In another embodiment, the outer wall has an outer surface and two side surfaces, the outer surface and the inner surface are opposite to each other, the two side surfaces are opposite to each other and each connected to the outer surface and the inner surface, the detachable connection mechanism includes a hook part and an opening part, the hook part is able to pass through the opening part in and out and hook around the opening part, one of the hook part and the opening part is provided on the side edge portion of the inner surface of one of the two adjacent outer walls, and the other of the hook part and the opening part is provided on the side surface of the other of the two adjacent outer walls. The detachable installation of the two adjacent wall bodies is achieved through the cooperation of the hook part and the opening part. The structure of the detachable connecting mechanism is not limited to this, and other structures that can achieve equivalent functions can be used as replacements.
In another embodiment, the detachable connection mechanism includes a plug part and a hole part, the plug part is able to penetrate the hole part in and out, one of the plug part and the hole part is provided on the side edge portion of the inner surface of one of the two adjacent outer walls, and the other of the plug part and the hole part is provided on the side surface of the other of the two adjacent outer walls. The connection between the two adjacent wall bodies is further strengthened through the cooperation of the plug part and the hole part, especially limiting the movement of the wall bodies in the vertical direction, ensuring the stability of the overall structure.
In another embodiment, the outer wall is provided with a second vent and a third vent, the second vent communicates with the chamber and is lower than the bearing plate in a vertical direction, and the third vent communicates with the gap space and is aligned with a lower side area of the inner wall in the vertical direction. The outside air flows into the chamber through the second vent, so that the fuel in the chamber can be fully burned; the outside air flows into the gap space through the third vent, and then flows out through the first vent.
In another embodiment, the fire pit further includes a tray and a sliding mechanism. The tray is arranged in the chamber through the sliding mechanism for carrying ashes and lower than the second vent in the vertical direction.
In another embodiment, the fire pit further includes at least two handle parts. The two handle parts are retractably penetrated on two upper surfaces of the two opposite outer walls in the vertical direction, respectively. When the handle part is in a stowed state, the lower end of the handle part falls in the gap space by gravity, and an upper end of the handle part falls on the upper surface.
Compared with the prior art, the wall bodies of the fire pit are connected through the detachable connection mechanism, making the fire pit easy to disassemble and install, thus solving the shortcomings of traditional integrated fire pits that are difficult to be carried, stored, and require a large, covered area. The fire pit of the embodiment of the invention also has a simple structure and high fuel utilization efficiency, making it suitable for various application scenarios.
Other objectives, features and advantages of the present invention will be further understood from the further technological features disclosed by the embodiments of the present invention wherein there are shown and described preferred embodiments of this invention, simply by way of illustration of modes best suited to conduct the invention.
The accompanying drawings are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification. The drawings illustrate examples of the disclosure and, together with the description, explain the principles of the disclosure.
In the following detailed description of the preferred embodiments, reference is made to the accompanying drawings which form a part hereof, and in which are shown by way of illustration specific embodiments in which the disclosure may be practiced. In this regard, directional terminology, such as “top,” “bottom,” “front,” “back,” etc., is used with reference to the orientation of the Figure(s) being described. The components of the disclosure can be positioned in a number of different orientations. As such, the directional terminology is used for the purposes of illustration and is in no way limiting. On the other hand, the drawings are only schematic, and the sizes of components may be exaggerated for clarity. It is to be understood that other embodiments may be utilized, and structural changes may be made without departing from the scope of the disclosure. Also, it is to be understood that the phraseology and terminology used herein are for the purpose of description and should not be regarded as limiting. The use of “including,” “comprising,” or “having” and variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. Unless limited otherwise, the terms “connected,” “coupled,” and “mounted” and variations thereof herein are used broadly and encompass direct and indirect connections, couplings, and mountings.
Similarly, the terms “facing,” “faces” and variations thereof herein are used broadly and encompass direct and indirect facing, and “adjacent to” and variations thereof herein are used broadly and encompass directly and indirectly “adjacent to.” Therefore, the description of “A” component facing “B” component herein may contain the situations that “A” component directly faces “B” component, or one or more additional components are between “A” component and “B” component. Also, the description of “A” component “adjacent to” “B” component herein may contain the situations that “A” component “component is directly “adjacent to” “B” component or one or more additional components are between “A” component and “B” component. Accordingly, the drawings and descriptions will be regarded as illustrative in nature and not as restrictive.
As shown in
In the embodiment, the fire pit includes four wall bodies 100 that surround the chamber. The any two adjacent wall bodies 100 are connected to each other through the detachable connection mechanism. In other embodiments, the number of the wall bodies 100 can also be six, eight, etc.
Specifically, the wall body 100 is in the shape of an isosceles trapezoidal plate, and the length of the upper side of the isosceles trapezoidal plate is greater than the length of the lower side of the isosceles trapezoidal plate. By configuring the wall body 100 to be an isosceles trapezoid, the entire fire pit has a tapered shape from top to bottom, which on the one hand facilitates adding fuel into the chamber and on the other hand saves covered area.
As shown in
In the embodiment, in order to further ensure the stability of the bearing plate 300, the bearing plate 300 also has a plurality of reinforcing ribs 301. The four-sided taper portion has four triangular surfaces and an apex area. The reinforcing rib 301 is located in the middle area of the triangular surface and extends in a direction from the apex area to the surrounding frame. The through holes are provided at the triangular surface and located on both sides of the reinforcing rib 301.
As shown in
The outer wall 110 is provided with a second vent 113 and a third vent 114. The second vent 113 communicates with the chamber and is lower than the bearing plate 300 in the vertical direction. The third vent 114 communicates with the gap space 101 and is aligned with the lower side area of the inner wall 120 in the vertical direction. Through the set positions of the second vent 113 and the third vent 114, the outside air flows into the chamber through the second vent 113, so that the fuel in the chamber can be fully burned; the outside air flows into the gap space 101 through the third vent 114 and then flows out through the first vent 121. In the embodiment, the second vent 113 and the third vent 114 are elongated openings arranged laterally, and the outer wall 110 is provided with four third vents 114 spaced apart from top to bottom. The shapes and numbers of the second vents 113 and the third vents 114 are not limited thereto and can be set according to actual needs.
The bearing plate 300 abuts against the bottom edge of the lower side area of the inner wall 120, and the pressing frame 200 abuts against the upper edge portion 111 of the inner surface of the outer wall 110, thereby increasing the distance between the bearing plate 300 and the pressing frame 200 and further making the overall structure of the fire pit more stable. Specifically, the pressing frame 200 is a quadrilateral frame. The pressing frame 200 provides a first horizontal force on the inner surface of the outer wall 110 to push against the four wall bodies 100, and the bearing plate 300 provides a second horizontal force on the inner wall 120 to push against the four wall bodies 100, so that the four wall bodies 100 surround to form a structurally stable chamber of the fire pit. As shown in
The fire pit also includes a tray 400 and a sliding mechanism. The tray 400 is arranged in the chamber through the sliding mechanism for carrying ashes. The tray 400 is lower than the second vent 113 in the vertical direction, so that external air can be smoothly introduced into the chamber from the second vent 113 to promote combustion. Specifically, the sliding mechanism includes two chutes 500. The two chutes 500 are respectively transversely disposed on the inner surfaces of the opposite outer walls 110. The sliding connection between the tray 400 and the chutes 500 is achieved by inserting the two side walls of the tray 400 into the two chutes 500. The wall body 100 perpendicular to the sliding direction of the tray 400 is provided with an opening for the tray 400 to pass through. The structure of the sliding mechanism is not limited to the fixed chutes 500, and other structures that can achieve equivalent effects can be used as substitutes.
Continuing to refer to
Furthermore, the detachable connection mechanism also includes a plug part 630 and a hole part 640. The plug part 630 can penetrate the hole part 640 in and out. One of the plug part 630 and the hole part 640 is provided on the side edge portion 112 of the inner surface of one of the two adjacent outer walls 110. The other of the plug part 630 and the hole part 640 is provided on the side surface of the other of the two adjacent outer walls 110. It can be understood that when the plug part 630 is provided on the side edge portion 112 of the inner surface of one of the two adjacent outer walls 110, the hole part 640 is provided on the side surface of the other outer wall 110; when the hole part 640 is provided on the side edge portion 112 of the inner surface of one of the two adjacent outer walls 110, the plug part 630 is provided on the side surface of the other outer wall 110.
In another embodiment, the fire pit further includes at least two handle parts 700. The outer wall 110 has an upper surface. The two handle parts 700 are retractably penetrated on the two upper surfaces of the two opposite outer walls 110 in the vertical direction, respectively. In use, the lower end of the handle part 700 is connected to the upper surface of the outer wall 110. The fire pit can be lifted up through the set of opposite handle parts 700 to facilitate moving the fire pit.
In the embodiment, the handle part 700 is a retractable structure. Specifically, the upper surface of the outer wall 110 is provided with a horizontal receiving groove 115, and installation holes are respectively provided at two ends of the receiving groove 115. The handle part 700 is in an inverted U shape. The lower end of the handle part 700 passes through the two installation holes and is fixedly connected to the limiting members (not shown). When in use, the handle part 700 is lifted upward, and the limiting member is pressed against the upper surface of the outer wall 110 so as to limit the position of the handle part 700, preventing the lower end of the handle part 700 from coming out of the outer wall 110. When the handle part 700 is not needed in the stowed state, the lower end of the handle part 700 falls in the gap space by gravity, and the upper end of the handle part 700 falls into the receiving groove 115 on the upper surface. The foregoing description of the preferred embodiments of the disclosure has been presented for purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosure to the precise form or to exemplary embodiments disclosed. Accordingly, the foregoing description should be regarded as illustrative rather than restrictive. Obviously, many modifications and variations will be apparent to practitioners skilled in this art. The embodiments are chosen and described in order to best explain the principles of the disclosure and its best mode practical application, thereby enabling persons skilled in the art in the art to understand the disclosure for various embodiments and with various modifications as are suited to the particular use or implementation contemplated. It is intended that the scope of the disclosure be defined by the claims appended hereto and their equivalents in which all terms are meant in their broadest reasonable sense unless otherwise indicated. Therefore, the term “the disclosure,” “the present disclosure” or the like does not necessarily limit the claim scope to a specific embodiment, and the reference to particularly preferred exemplary embodiments of the disclosure does not imply a limitation on the disclosure, and no such limitation is to be inferred. The disclosure is limited only by the spirit and scope of the appended claims. Moreover, these claims may refer to the use “first,” “second,” etc. following with noun or element. Such terms should be understood as a nomenclature and should not be construed as giving the limitation on the number of the elements modified by such nomenclature unless specific number has been given. The abstract of the disclosure is provided to comply with the rules requiring an abstract, which will allow a searcher to quickly ascertain the subject matter of the technical disclosure of any patent issued from this disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. Any advantages and benefits described may not apply to all embodiments of the disclosure. It should be appreciated that variations may be made in the embodiments described by persons skilled in the art without departing from the scope of the disclosure as defined by the following claims. Moreover, no element and component in the present disclosure is intended to be dedicated to the public regardless of whether the element or component is explicitly recited in the following claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202311501925.X | Nov 2023 | CN | national |
