CROSS-REFERENCE TO RELATED APPLICATIONS
This application claims priority to Chinese Patent Application No. 202311710004.4, filed on Dec. 12, 2023, the entire contents of which are incorporated herein by reference.
TECHNICAL FIELD
The present application relates to the technical field of cleaning machine, and in particular to a suction nozzle and a cleaning device.
BACKGROUND
A cleaning robot is a device that sucks foreign objects such as dust, sewage or debris from the surface to be cleaned as it moves on the area to be cleaned. During the automatic moving and cleaning process of the cleaning robot, the cleaning robot needs to suck away the foreign objects on the surface to be cleaned through the suction nozzle. In the related art, the suction nozzle is usually set with the roller brush. The roller brush is used to roll the foreign objects such as water stain, dust or debris on the surface to be cleaned, and then these foreign objects are sucked away through the suction nozzle to achieve the purpose of cleaning. However, since the rolling of the roller brush requires a large space, and the cleaning opening of the cleaning robot needs to be very large, which reduces the negative pressure generated by the suction nozzle, and resulting in that there still remains water stain or dust that cannot be sucked away, and the cleaning effect is unsatisfactory.
SUMMARY
A main objective of the present application is to provide a suction nozzle, and to improve the cleaning effect by maintaining the suction port of the suction nozzle directly fitting the surface to be cleaned.
In order to achieve the above objective, the suction nozzle proposed by the present application is applied to a cleaning device. The cleaning device includes a device body, the device body includes a sewage tank. The suction nozzle includes a suction nozzle body and a sealing ring. One end of the suction nozzle body is provided with a suction port, and the other end of the suction nozzle body is provided with a drainage port. A drainage channel communicating with the suction port and the drainage port is formed inside the suction nozzle body. The drainage port is configured to communicate with the sewage tank of the cleaning device. The suction nozzle body is configured to be rotatably installed to the device body of the cleaning device so as to have a working position that maintains the suction port fitting a surface to be cleaned. The sealing ring is provided at the drainage port, configured to seal a fitting clearance between the suction nozzle body and the sewage tank and capable of elastically deforming.
In some embodiments, a rotational connection position between the suction nozzle body and the device body is configured to be adjacent to the drainage port; a distance between the drainage port and the rotational connection position is defined as L1, and a distance between the suction port and the rotational connection position is defined as L2; L2 is greater than L1.
In some embodiments, L2 is greater than or equal to three times of L1 and less than or equal to thirty times of L1.
In some embodiments, a periphery of the suction port is provided with a guide slope, and the guide slope is obliquely extended upwards in a direction away from the suction port.
In some embodiments, a first elastic member is connected between the suction nozzle body and the device body, and the suction nozzle body is maintained in the working position under an action of the first elastic member.
In some embodiments, the first elastic member is configured as a compression spring, and the first elastic member is located above the rotational connection position between the suction nozzle body and the device body and located at a side of the rotational connection position away from the suction nozzle body; in a compressed state, the first elastic member is configured to incline downwards in a direction close to the rotational connection position.
In some embodiments, the suction nozzle further includes an installation member; the installation member is provided with an accommodation recess; an end of the suction nozzle body that is provided with the drainage port is arranged in the accommodation recess; the suction nozzle body is rotatably connected to the installation member; the suction nozzle body and the accommodation recess are provided with a movement clearance in a vertical direction and a horizontal direction.
In some embodiments, two opposite side walls of the accommodation recess are both provided with a guide groove; the guide groove is extended upwards in the vertical direction; two opposite outer side walls of the suction nozzle body are both provided with a rotation shaft; one rotation shaft is rotatably inserted in one guide groove, and is configured to slide along an extension direction of a corresponding guide groove.
In some embodiments, an upper side of the suction nozzle body is connected with a second elastic member, and the suction nozzle body has a tendency to move downwards under an action of the second elastic member.
In some embodiments, a plurality of second elastic members are provided, and one second elastic member is correspondingly provided above one rotation shaft and abutted against the rotation shaft.
In some embodiments, at least one second elastic member is further provided in a middle of the two rotation shafts and abutted against the suction nozzle body.
In some embodiments, two ends of the sealing ring are configured as a first end and a second end; an inner peripheral side of the first end is provided with a first ring groove, an outer peripheral side of the drainage port is provided with a first ring protrusion, and the first ring protrusion is tightly clamped in the first ring groove.
In some embodiments, an outer peripheral side of the second end is provided with a second ring groove, and the installation member is provided with a passage facing the drainage port; a periphery of the passage is provided with a second ring protrusion, and the second ring protrusion is tightly clamped in the second ring groove.
In some embodiments, the nozzle body includes a body part and an installation head; the drainage port is provided at the installation head, and a position where the body part and the installation head are connected is provided with a sealing gasket; the sealing gasket is accommodated and clamped between the installation head and the body part, and the body part is detachably connected to the installation head.
In some embodiments, the installation head is provided with an installation opening, a periphery of the installation opening is provided with a buckle, and the body part is clamped to the buckle.
The present application further proposes a cleaning device, which includes a device body and the aforementioned suction nozzle, and the drainage port is communicated with the sewage tank of the device body.
In the technical solution of the present application, the suction port directly fits the surface to be cleaned, and the suction nozzle body is rotatably installed to the cleaning device; a sealing ring that can elastically deform is provided at the fitting clearance between the drainage port and the sewage tank. In this way, when the surface to be cleaned is a flat surface, the suction nozzle body remains stable in the device body, and the suction port always fits the surface to be cleaned and can suck away the dirt on the surface to be cleaned; when the surface to be cleaned appears convex and concave, the suction nozzle body rotates in the device body, so that the suction port can float with the shape of the surface to be cleaned. At this time, the sealing ring elastically deforms to keep the fitting clearance between the suction nozzle body and the sewage tank always in a sealed state, thereby avoiding air leakage at the drainage port that affects the negative pressure in the suction nozzle body and the cleaning effect. Therefore, the suction nozzle of the present application can ensure that during the cleaning process of the cleaning device, the suction nozzle body is always in the working position, and the suction port can always fit the surface to be cleaned, so that the suction force of the suction nozzle body directly acts on the surface to be cleaned, thereby improving the cleaning effect.
BRIEF DESCRIPTION OF THE DRAWINGS
In order to more clearly illustrate the technical solutions in the embodiments of the present application or in the related art, drawings that are needed to illustrate the embodiments and the related art are simply introduced below. Obviously, drawings introduced below are just some of the embodiments in the present application. For those of ordinary skill in the art, other figures may be further obtained without creative efforts according to the structures shown in drawings below.
FIG. 1 is a schematic structural view of a suction nozzle according to an embodiment of the present application.
FIG. 2 is an exploded schematic view of the suction nozzle in FIG. 1.
FIG. 3 is a cross-sectional view of the suction nozzle in FIG. 1 configured in a cleaning device.
FIG. 4 is a partial enlarged view of part A in FIG. 3.
FIG. 5 is a schematic structural view of the installation member in FIG. 1.
FIG. 6 is another exploded schematic view of the suction nozzle in FIG. 1.
FIG. 7 is a schematic structural view of the sealing member in FIG. 1.
FIG. 8 is a cross-sectional view of the suction nozzle according to another embodiment of the present application.
FIG. 9 is a cross-sectional view of the suction nozzle according to yet another embodiment of the present application.
The realization of the purpose, the functional feature, and the advantage of present application will be further illustrated referring to the drawings.
DETAILED DESCRIPTION OF THE EMBODIMENTS
The technical solutions of the embodiments of the present application will be described in more detail below with reference to the accompanying drawings. It is obvious that the embodiments to be described are only some rather than all the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts should fall within the scope of the present application.
It should be noted that all the directional indications (such as up, down, left, right, front, rear, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement, etc. among the components in a certain posture (as shown in the drawings). If the specific posture changes, the directional indication will change accordingly.
Besides, the descriptions associated with “first”, “second”, etc. in the present application are merely for descriptive purposes, and cannot be understood as indicating or suggesting the relative importance or implicitly indicating the number of the indicated technical feature. Therefore, the features defined with “first” or “second” can expressly or implicitly include at least one such feature. In addition, the meaning of “and/or” appearing in the present application includes three solutions. For example, “A and/or B” includes only A, or only B, or both A and B. Moreover, the technical solutions of the various embodiments can be combined with each other, but the combinations must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be achieved, it should be considered that such a combination of technical solutions does not exist, nor does it fall within the scope of the present application.
The present application proposes a suction nozzle.
In an embodiment of the present application, referring to FIGS. 1 to 9, this suction nozzle is applied to a cleaning device, the cleaning device includes a device body, the device body includes a sewage tank 600, and the suction nozzle includes a suction nozzle body 100 and a sealing ring 200; one end of the suction nozzle body 100 is provided with an suction port 140, the other end of the suction nozzle body 100 is provided with an drainage port 150, and a drainage channel 160 communicating with the suction port 140 and the drainage port 150 is formed inside the suction nozzle body 100; the drainage port 150 is configured to communicate with the sewage tank 600; the suction nozzle body 100 is configured to be rotatably installed to the device body to have a working position that maintains the suction port 140 fitting the surface to be cleaned; the sealing ring 200 is provided at the drainage port 150 and configured to seal a fitting clearance between the suction nozzle body 100 and the sewage tank 600, and the sealing ring can elastically deform.
In the technical solution of the present application, the suction port 140 directly fits the surface to be cleaned, and the suction nozzle body 100 is rotatably installed on the device body; a sealing ring 200 that can elastically deform is provided at the fitting clearance between the drainage port 150 and the sewage tank 600. In this way, when the surface to be cleaned is a flat surface, the suction nozzle body 100 remains stable in the device body, and the suction port 140 always fits the surface to be cleaned and can suck away the dirt on the surface to be cleaned; when the surface to be cleaned appears convex and concave, the suction nozzle body 100 rotates in the device body, so that the suction port 140 can float with the shape of the surface to be cleaned. At this time, the sealing ring 200 elastically deforms to keep the fitting clearance between the suction nozzle body 100 and the sewage tank 600 always in a sealed state, thereby avoiding air leakage at the drainage port 150 that affects the negative pressure in the suction nozzle body 100 and the cleaning effect. Therefore, the suction nozzle of the present application can ensure that during the cleaning process of the cleaning device, the suction nozzle body 100 is always in the working position, and the suction port 140 can always fit the surface to be cleaned, so that the suction force of the suction nozzle body 100 directly acts on the surface to be cleaned, thereby improving the cleaning effect.
It should be noted that the suction nozzle body 100 is configured to be rotatably installed to the cleaning device body, which can be that the suction nozzle body 100 rotates relative to the device body around a rotation axis to allow the suction port 140 float as a whole, or it can also be that two sides of the suction nozzle body 100 can independently move up and down relative to the device body to allow one end of the suction port 140 float independently, so that the suction port 140 and the horizontal plane form a certain angle and the suction port 140 can adapt to more complex and diverse surfaces to be cleaned, or it can be the integration of the above two movements. In addition, the directional indications such as up and down in this technical solution can be referred to FIGS. 3 and 9, if the posture of the suction nozzle changes, the directional indications will also change accordingly.
It should be noted that, the cleaning device using this suction nozzle can be a carpet cleaning robot or a floor cleaning robot. Correspondingly, the surface to be cleaned can be a carpet or a floor. Similarly, the cleaning device can be fully automatic, semi-automatic or purely manual cleaning device. In an embodiment, the suction nozzle is applied to a fully automatic carpet cleaning robot, the surface to be cleaned is a carpet, and the lower side of the device body is also provided with a roller brush port. In the forward direction of the cleaning device, the roller brush port is in front of the suction port 140. It can be understood that first the roller brush of the roller brush port brushes the carpet, and then the suction port 140 sucks the dirt inside the carpet cleaned by the roller brush.
In an embodiment, referring to FIGS. 1 to 3, the position where the suction nozzle body 100 and the device body are rotatably connected is arranged near the drainage port 150, the distance between the drainage port 150 and the rotational connection position is defined as L1, the distance between the suction port 140 and the rotational connection position is defined as L2, and L2 is greater than L1. It can be understood that the floating amplitude of the suction port 140 is greater than the floating amplitude of the drainage port 150, so that the sealing ring 200 only needs to have a small deformation to ensure the sealing of the fitting clearance between the suction nozzle body 100 and the sewage tank 600. In this way, during the entire use process, the deformation amplitude of the sealing ring 200 is low, the wear rate of the sealing ring 200 is reduced, and the service life of the sealing ring is prolonged. Besides, since the requirement for the elastic ability of the sealing ring 200 is not high, most of the elastic materials on the market are suitable for the suction nozzle of this embodiment, thereby reducing the production cost. In other embodiments, L1 can also be greater that L2, and the suction port 140 can also be kept in the working position by providing a spring with a small spring force at the drainage port 150.
Specifically, in this embodiment, please continue to refer to FIGS. 1 to 3, L2 is greater than or equal to three times of L1 and less than or equal to thirty times of L1. In this way, the rotation arm from the rotational connection position of the suction nozzle body 100 and the device body to the suction port 140 is relatively long, which can further reduce the deformation degree of the sealing ring 200 caused by the floating of the suction port 140 and improve the durability and reliability of the sealing ring 200. Specifically, L2 can be equal to eight times of L1, twelve times of L1 or sixteen times of L1. When L2 is less than three times of L1, the distance from the suction port 140 to the rotational connection position is not long enough, the deformation at the drainage port 150 still has a certain amplitude, which still requires a certain elastic deformation ability of the sealing ring 200. When L2 is greater than thirty times of L1, for the size of the existing suction nozzle, the distance from the drainage port 150 to the rotational connection position is too short, which requires a high process requirement for production and manufacturing, which is not conducive to reducing costs and improving production efficiency.
In an embodiment, referring to FIGS. 2, 3, 6 and 9, the periphery of the suction port 140 is provided with a guide slope 190, and the guide slope 190 is obliquely extended upwards in a direction away from the suction port 140. It can be understood that during the moving process of the cleaning device, if there is a protrusion on the surface to be cleaned, first the guide slope 190 abuts against the protrusion, and then the guide slope 190 will gradually rise, which makes the suction nozzle rotate around its rotational connection position, and the suction port 140 synchronously rises and maintains fitting the surface to be cleaned. When the suction port 140 crosses the protrusion, the suction port 140 gradually falls and always maintains fitting the surface to be cleaned. In this way, the guide slope 190 can guide the suction port 140 to rise, to improve the ability of suction port 140 crossing the protrusion and keep fitting the surface to be cleaned, and avoid the suction port 140 and the protrusion from colliding and interfering in the horizontal direction, causing the cleaning device to be unable to move. Specifically, the guide slope 190 can be continuously provided along the periphery of the suction port 140, or can be provided in sections, or can be provided on at least one pair of opposite sides of the suction port 140. In this embodiment, the guide slope 190 is continuously provided along the periphery of the suction port 140, so as to improve the obstacle crossing ability of the suction port 140 and ensure the stability of the suction port 140 fitting the surface to be cleaned during the turning, moving forward or backward process of the cleaning device.
In an embodiment, referring to FIGS. 3 and 4, a first elastic member 400 is connected between the suction nozzle body 100 and the device body. The suction nozzle body 100 can be maintained in the working position under the action of the first elastic member 400. It should be noted that the first elastic member 400 is located in the vertical plane where the suction nozzle body 100 rotates inside the device body, and the elastic expansion and contraction direction of the first elastic member 400 extends around the rotational connection position of the suction nozzle body 100 and the device body. When encountering a convex ground and the suction nozzle body 100 is pushed to rotate upwards, the first elastic member 400 has elastic force in its elastic expansion and contraction direction, so that there is a certain contact force between the suction port 140 and the surface to be cleaned to ensure a constant negative pressure in the drainage channel 160 and a good cleaning effect. When the convex ground disappears or encounters a concave ground, the suction nozzle body 100 rotates downwards, and the first elastic member 400 follows to push the suction nozzle body 100 to ensure a constant negative pressure in the drainage channel 160 and a good cleaning effect. In other embodiments, a heavy object is arranged at the suction port 140 of the suction nozzle body 100 to maintain the contact force between the suction port 140 and the surface to be cleaned and ensure the constant pressure in the drainage channel 160.
Further, in this embodiment, referring to FIGS. 3 and 4, the first elastic member 400 is configured as a compression spring, the first elastic member 400 is located above the rotational connection position of the suction nozzle body 100 and the device body and located at a side of the rotational connection position away from the suction nozzle body 100. When in a compressed state, the first elastic member 400 is configured to incline downwards in the direction close to the rotational connection position. It should be noted that when the first elastic member 400 is in the compressed state, the suction port 140 has already rotated or swung upwards, and the elastic expansion and contraction direction of the first elastic member 400 is parallel to the vertical plane where the suction nozzle body 100 rotates in the device body. In this way, the elastic force of the first elastic member in the compressed state has a component force in both the horizontal plane and the vertical plane. Since the first elastic member 400 is provided above the rotational connection position and located at a side of the rotational connection position away from the suction port 140, so that the suction port 140 has a tendency to rotate towards the surface to be cleaned, i.e., to the tendency to move downwards. At this time, when the suction nozzle body 100 rotates around the rotational connection position or two ends of the suction part 140 bounce, by providing only one first elastic member 400 can reset the suction nozzle body 100, so that the structure is simplified and the space utilization rate of the inside of the cleaning device is improved. Without loss of generality, in this embodiment, the elastic expansion and contraction direction of the first elastic member 400 also intersects with the vertical line in the middle of the extension direction of the suction port 140, so as to balance the contact force between two ends of the suction port 140 and the surface to be cleaned. In other embodiments, the first elastic member 400 can be provided at a side of the rotational connection position close to the suction nozzle body 100 and located above the rotational connection position. At this time, when in the compressed state, the first elastic member 400 is configured to incline downwards in the direction close to the suction port 140. Alternatively, the first elastic member 400 is configured as a tension spring, the first elastic member 400 is provided at a side of the rotational connection position close to the suction nozzle body 100 and located below the rotational connection position. At this time, when in a stretched state, the first elastic member 400 is configured to incline upwards in the direction close to the rotational connection direction.
In an embodiment, referring to FIGS. 1 to 9, the suction nozzle further includes an installation member 300. The installation member 300 is provided with an accommodation recess 310. The end of the suction nozzle body 100 that is provided with the drainage port 150 is arranged in the accommodation recess 310. The suction nozzle body 100 is rotatably connected to the installation member 300. There is a movement clearance between the suction nozzle body 100 and the accommodation recess 310 in the vertical direction and horizontal direction. It should be noted that the installation member 300 can be an independent component, and also can be that the sealing ring 200 sealing to the passage between the suction nozzle body 100 and the installation member 300, in the connection portion of the cleaning device body, in the connection structure of the suction nozzle body 100 and the cleaning device body. In this way, in the operation of controlling the sealing performance of the suction nozzle body 100 and the sewage tank 600, it can firstly assemble the sealing member between the suction nozzle body 100 and the installation member 300, and then can be fixed on the sewage tank 600 via the installation member 300, thereby reducing the assembly difficulty of the cleaning device. In other embodiments, the suction nozzle body 100 can also be directly communicated with the sewage tank 600 via the sealing member.
Specifically, in this embodiment, please continue referring to FIGS. 1 to 3, the position where the installation member 300 and the suction nozzle body 100 are connected is provided with a fixing ring 330. The fixing ring 330 is fixed to the installation member 300 by screwing. The material of the fixing ring 330 is a material with a large rigidity. One end of the sealing ring 200 is tightly connected to the fixing ring 330, so that the channels inside the two are communicated, and the sealing of the fitting clearance is ensured, thereby reducing the material requirements for the main part of the installation member 300, reducing the cost and the difficulty of forming the installation member 300. In other embodiments, the sealing ring 200 can also be directly fixed at the passage of the installation member 300.
Further, in this embodiment, referring to FIG. 5, two opposite side walls of the accommodation recess 310 are both provided with a guide groove. The guide groove is extended upwards in the vertical direction. Two opposite outer side walls of the suction nozzle body 100 are both provided with a rotation shaft 180. One rotation shaft 180 is rotatably inserted in one guide groove, and can slide along the extension direction of the corresponding guide groove. Without loss of generality, in this embodiment, the guide groove is configured as a U-shaped groove with an opening facing upwards. The rotation shaft 180 is clamped in the U-shaped groove in the horizontal direction. In a general state, the rotation shaft 180 abuts the bottom of the U-shaped groove, so that when the suction nozzle body 100 rotates around the rotational connection position, the suction nozzle body 100 is allowed to stably rotate by the cooperation of the rotation shaft 180 and the U-shaped groove. And when the suction nozzle body 100 swings, the rotation shaft 180 corresponding to the lifted end of the suction port 140 can slide along the extension direction of the U-shaped groove, so as to play a guide role and a limit role on the swing of the suction nozzle body 100, and the suction port 140 can reset to the horizontal state. Moreover, the opening of the U-shaped groove also facilitates the technicians to install the suction nozzle body 100 in the accommodation recess 310, thereby improving the convenience of assembly. In other embodiments, the opening of the guide groove can be opened in the horizontal direction, alternatively, the side walls of the accommodation recess 310 and the suction nozzle body 100 are connected at the rotational connection position via a universal joint. The universal joint is obliquely extended upwards, and it has the ability to elastically expand and contract in its extension direction.
In another embodiment, referring to FIGS. 8 and 9, the upper side of the suction nozzle body 100 is connected with a second elastic member 500. The suction nozzle body 100 has a tendency to move downwards under the action of the second elastic member 500. In this way, when the suction nozzle body 100 swings, the second elastic member 500 can drive the suction nozzle body 100 to reset downwards and keep abutting against the bottom of the U-shaped groove, to ensure there is an interaction force between the suction port 140 and the surface to be cleaned, so that an effective suction force is provided to the suction nozzle body 100 and the good cleaning effect is ensured.
Specifically, in this embodiment, referring to FIG. 8, there are multiple second elastic members 500. One second elastic member 500 is correspondingly provided above one rotation shaft 180 and abutted against the rotation shaft 180. In this way, no matter which end of the suction port 140 moves upwards, the second elastic member 500 of the corresponding rotation shaft 180 provides a downward elastic force to drive the suction port 140 to keep in the horizontal state, so that the suction port 140 can effectively fit the surface to be cleaned, and the good cleaning effect is ensured. In addition, the second elastic member 500 can also reduce the swing amplitude of the suction nozzle body 100 to improve the efficiency of the suction port 140 sucking the dirt.
In yet another embodiment, referring to FIG. 9, at least one second elastic member 500 is further provided in the middle of the two rotation shafts 180, and is abutted against the suction nozzle body 100. In this way, the two rotation shafts 180 and this second elastic member 500 located at the middle and upper side form a three-point balanced structure. When any end of the suction port 140 bounces upwards, the second elastic member 500 has a downward elastic force applying on the corresponding rotation shaft 180, so that the rotation shaft 180 has a tendency to reset towards the bottom of the U-shaped groove, to ensure the suction port 140 fitting the surface to be cleaned and improve the cleaning effect. In other embodiments, there can be three second elastic members 500 provided, and all of them are provided at the upper side of the suction nozzle body 100 and corresponding to the two rotation shafts 180 and the middle between the two rotation shafts 180.
In an embodiment, referring to FIGS. 2 and 7, the two ends of the sealing ring 200 are configured as a first end and a second end. The inner peripheral side of the first end is provided with a first ring groove 210. The outer peripheral side of the drainage port 150 is provided with a first ring protrusion 170. The first ring protrusion 170 is tightly clamped in the first ring groove 210. The outer peripheral side of the second end is provided with a second ring groove 220. The installation member 300 is provided with a passage facing the drainage port 150, the periphery of the passage is provided with a second ring protrusion 340, and the second ring protrusion 340 is tightly clamped in the second ring groove 220. It can be understood that there are at least two clamping side walls extending horizontally in the vertical direction and between any one ring protrusion and the corresponding ring groove. Under the gravity of the suction nozzle body 100, the clearance in the clamping side walls extending horizontally will be compressed. In this way, the sealing between the first ring protrusion 170 and the first ring groove 210 and the sealing between the second ring protrusion 340 and the second ring groove 220 can be ensured, the path for pressure leakage is increased, and the reliability and stability of the sealing ring 200 sealing the fitting clearance of the suction nozzle body 100 and the sewage tank 600 are ensured. Meanwhile, when the sealing ring 200 elastically deforms, the cooperation of the first ring protrusion 170 and the first ring groove 210 and the cooperation of the second ring protrusion 340 and the second ring groove 220 can also provide enough deformation amplitude to the sealing ring 200 while ensuring the sealing performance. Moreover, by installing the sealing ring 200 between the drainage port 150 and the sewage tank 600 by clamping, the convenience of assembling the cleaning device is improved. Specifically, in this embodiment, the second ring protrusion 340 is provided on the fixing ring 330. In another embodiment, one of the first end and the second end can be installed at a corresponding position by the above-mentioned clamping manner, while the other can be installed at a corresponding position by methods such as gluing or injection molding. Alternatively, both the first end and the second end of the sealing ring 200 can be installed at their corresponding position by using methods of gluing or injection molding. It should be noted that the material of the middle of the sealing ring has lower hardness than the material of the first end and the second end, which is manifested as the sealing ring 200 being hard at both ends and being soft at the middle, so as to improve the convenience of connecting both ends of the sealing ring 200 and the sewage tank 600, and the sealing ring 200 is thus allowed to have a certain elastic deformation ability, so that during the floating process of the suction nozzle body 100, a leakage between the drainage port 150 and the sewage tank 600 is prevented.
In an embodiment, referring to FIGS. 2 and 6, the suction nozzle body 100 includes a body part 110 and an installation head 120. The drainage port 150 is provided at the installation head 120, the position where the body part 110 and the installation head 120 are connected is provided with a sealing gasket 130, the sealing gasket 130 is accommodated and clamped between the installation head 120 and the body part 110. The body part 110 is detachably connected to the installation head 120. In this way, when there is a need to clean the sewage tank 600 and the suction nozzle body 100, the body part 110 can be firstly removed, and then the installation head 120 and the sewage tank 600 can be taken out together, and the two can be cleaned and maintained separately. Since the length of the body part 110 of this embodiment is relatively large, by detachably connecting the body part 110 and the installation head 120, the difficulty of cleaning and maintenance is reduced. Meanwhile, by providing the sealing gasket 130 between the body part 110 and the installation head 120, the sealing of the fitting clearance of the body part 110 and the installation head 120 is ensured, and the body part 110 and the installation head 120 can effectively become a whole. During the rotation or swinging process of the suction nozzle body 100, the deformation position is concentrated at the sealing ring 200, thereby ensuring the balanced pressure in the drainage channel 160 and good cleaning effect. In other embodiments, the suction nozzle body 100 can be configured as a whole, and the sewage tank 600 and the suction nozzle body 100 can be removed as a whole when it needs to clean and maintain the sewage tank 600 and the suction nozzle body 100.
Further, in this embodiment, please continuing to refer to FIGS. 2 and 6, the installation head 120 is provided with an installation opening, the periphery of the installation opening is provided with a buckle 121, and the body part 110 is clamped to the buckle 121. In this way, when the suction port 140 is subjected to a force, the body part 110 transmits the force to the installation head 120 via the sealing gasket 130 and the buckle 121, so that the installation head 120 and the body part 110 can rotate synchronously, which prevents the body part 110 and the installation head 120 from becoming loose or even falling off, and causing a leakage happening to the drainage channel 160 at this position, thereby ensuring a good cleaning effect. Furthermore, the body part 110 is installed in the installation head 120 by clamping, the two are connected without extra tools or complex operations, which simplifies the installation steps and improves the installation efficiency. In other embodiments, the installation head 120 and the body part 110 can be detachably connected by screwing.
The present application further proposes a cleaning device, referring to FIG. 3, this cleaning device includes a device body and a suction nozzle. The specific structure of the suction nozzle can be referred to the above-mentioned embodiments. Since this cleaning device adopts all the technical solutions of all the above-mentioned embodiments, it therefore has at least all the technical benefits brought by the technical solutions of the above-mentioned embodiments, and there is no need to repeat them here. In this cleaning device, the device body includes a sewage tank 600, the drainage port 150 communicates with the sewage tank 600. Specifically, in this embodiment, the drainage port 150 is located above the sewage tank 600.
The above-mentioned are only optional embodiments of the present application, and are not intended to limit the scope of the present application. Under the inventive concept of this application, any equivalent structural variation made by using the specification and the content of the drawings of the present application, or direct/indirect application on other related technical fields, should all be included in the scope of the present application.
Patent Application
20250185859
