A wheel assembly

Abstract

The application relates to a wheel assembly and relates to the technical field of cleaning devices. The wheel assembly can comprise a shell, a wheel body and a wheel shaft, the shell can comprise a mounting portion and an opening, the wheel body is arranged at the mounting portion of the shell and passes through the opening, and the wheel shaft penetrates the wheel body to enable the wheel body to rotate around the wheel shaft as the rotation axis; the wheel shaft is arranged at the mounting portion, and the wheel body extends out of the shell through the opening; wherein the mounting portion comprises a mounting cavity located at least one side of the opening and a hair hiding cavity; the hair hiding cavity is located at the side of the mounting cavity close to the opening. The wheel assembly of the application is provided with the hair hiding cavity at one side or both sides of the opening. When the hair is wound around the wheel shaft, the hair will continuously move to the hair hiding cavity and then hide in the hair hiding cavity. The hair hiding cavity can accommodate more hair, which is not easy to be stuck and will not expose the wound hair.

Description

Technical Field

[0001] This application relates to the field of cleaning device technology, and in particular to a wheel assembly. Background Technology

[0002] Cleaning equipment typically incorporates wheel assemblies to assist its movement. Since cleaning equipment inevitably comes into contact with hair during use, the rotation of the wheel assembly can easily cause hair to become entangled, thus affecting the equipment's usability. Currently, some wheel assemblies have a small gap between the wheel and the sides of the opening, which effectively prevents hair from getting tangled. However, even a small amount of hair entanglement can cause the entire wheel to jam, leading to frequent jamming and requiring constant cleaning, making it inconvenient to use. Other wheel assemblies have a larger gap between the wheel and the sides of the opening. This allows hair to directly wrap around the wheel axles on both sides of the opening, exposing the hair and affecting its appearance. Furthermore, without any other obstruction, the hair is more likely to get stuck, further hindering usability. Utility Model Content

[0003] Therefore, it is necessary to provide a wheel assembly to address the above problems and solve the problem of wheel assemblies in the prior art being prone to jamming.

[0004] On one hand, this application provides a wheel assembly, characterized in that it comprises:

[0005] The housing includes a mutually detachable support member and a cover plate, wherein the cover plate forms a mounting portion when connected to the support member; and the housing and / or the support member are provided with openings;

[0006] Wheel body;

[0007] An axle passes through a wheel body to allow the wheel body to rotate about the axle; the axle is disposed at the mounting portion, and the wheel body extends from inside the housing through the opening to the outside of the housing; wherein the mounting portion includes a mounting cavity and a hair-concealing cavity located on at least one side of the opening; the hair-concealing cavity is located on the side of the mounting cavity closer to the opening.

[0008] Optionally, the radial dimension of the mounting cavity is the same as the radial dimension of the axle; the radial dimension of the wool-concealing cavity is larger than the radial dimension of the axle. Specifically, having the same radial dimension as the axle ensures a tight fit between the axle and the mounting cavity when installed, preventing the wheel from wobbling during use. Preferably, the radial dimension of the mounting cavity is slightly larger than the radial dimension of the axle, ensuring that the axle is not resisted by the sidewalls of the mounting cavity when rotating within it. Having a larger radial dimension than the axle ensures that the wool-concealing cavity has sufficient space for wool concealment.

[0009] Optionally, the cover plate is provided with a first groove and a second groove;

[0010] The support member is provided with a third groove and a fourth groove;

[0011] When the cover plate is connected to the support member, the first groove and the third groove are correspondingly arranged to form the mounting cavity, and the second groove and the fourth groove are correspondingly arranged to form the hair-concealing cavity.

[0012] The grooves provided at the cover plate and the support members, when the cover plate and the support members are fastened together, cooperate with each other to form an installation cavity and a bristle-concealing cavity, which is conducive to the installation and disassembly of the wheel body and the axle.

[0013] Optionally, the width of the opening is greater than or equal to the width of the wheel body, and the difference between the width of the opening and the width of the wheel body is 0 to 0.6 mm. This design allows for a smaller gap between the wheel body and the side of the opening, for example, less than 0.3 mm, thereby reducing the chance of hair entering the axle through the gap between the wheel body and the side of the opening, and thus reducing the possibility of hair getting tangled and stuck on the axle.

[0014] Optionally, the axial width of the outer side of the wheel is 2-7 mm. Specifically, a smaller wheel width reduces the contact area between the wheel and the floor, thereby reducing the probability of the wheel coming into contact with hair and minimizing hair entanglement.

[0015] Optionally, a snap-fit ​​structure is provided between the cover plate and the support member to allow the cover plate and the support member to be detachably snapped together.

[0016] A snap-fit ​​structure is provided between the cover plate and the support, and the snap-fit ​​can be detached, which ensures that the cover plate and the support can be disassembled at any time, thus facilitating the cleaning of the wheel body and wheel axle.

[0017] Optionally, the snap-fit ​​structure includes:

[0018] A first through hole and a second through hole opposite to the first through hole are provided at the support member; and

[0019] A protrusion provided on the cover plate and a cantilever structure opposite to the protrusion;

[0020] The protrusion is engaged with the first through hole, and the cantilever structure is engaged with the second through hole.

[0021] With the protrusion and cantilever structure and the first and second through holes, the cantilever structure can be manually pressed to disassemble the cover plate and the support without the need for additional tools. This is convenient, quick, and helps to clean hair from the wheel axle.

[0022] Optionally, the snap-fit ​​structure includes:

[0023] Two through holes are provided on opposite sides of the support member;

[0024] Two cantilever structures are provided on opposite sides of the cover plate;

[0025] Each of the cantilever structures is detachably snapped into one of the through holes.

[0026] Specifically, this embodiment features two cantilever structures. Users can manually press either cantilever structure to disassemble the cover and support. This facilitates the removal of the cover and cleaning of hair. Furthermore, compared to the previous design with one side protruding and the other side cantilever structure, the two cantilever structure design allows for disassembly by pressing either cantilever structure, making disassembly more convenient.

[0027] Optionally, the cantilever structure includes:

[0028] A bending structure, one end of which is connected to the cover plate, extends from the cover plate toward a side closer to or away from the support member and then bends, so that the other end returns to a position close to or flush with the plane of the cover plate; and

[0029] A snap fastener is provided on the outer side of the bent structure at the end furthest from the end connected to the cover plate to engage with the support member.

[0030] The cantilever structure design of this solution features a bending structure that allows the cantilever structure to deform when pressed, thus ensuring smooth assembly and disassembly. The snap-fit ​​mechanism, on the other hand, restricts the position of the cantilever structure when the cover plate and the support are engaged together, preventing the cover plate and the support from falling off each other.

[0031] Optionally, a flange is provided at the end of the bending structure away from the cover plate. When the bending structure is engaged with the support member, the flange protrudes beyond the plane of the cover plate or is on the same plane as the cover plate. The flange design of this application facilitates manual pressing of the bending mechanism by the user.

[0032] The wheel assembly of this application may include a housing, a wheel body, and a wheel axle. The housing may include a mounting part and an opening. The wheel body is disposed at the mounting part of the housing and passes through the opening. A hair-concealing cavity is provided on one or both sides of the opening. When hair gets tangled around the wheel axle, it will continuously move towards the hair-concealing cavity and then hide inside the hair-concealing cavity. The hair-concealing cavity can hold a large amount of hair, which makes it less likely to get stuck and also prevents the tangled hair from being exposed.

[0033] The size of the hair-concealing cavity in this application is larger than the radial dimension of the rotating shaft. The hair-concealing cavity can hide the hair, and cleaning is only required after the hair-concealing cavity is full. The larger the size of the hair-concealing cavity, the longer the small wheel is completely stuck, thus extending the hair cleaning interval and improving the user experience.

[0034] The width difference between the opening and the wheel body in this application is approximately 0-0.6 mm, and the gap between each side of the wheel body and the side of the opening is less than or equal to 0.3 mm. This makes it difficult for hair to enter through the gap between the wheel body and the opening and become entangled in the wheel body and axle. Furthermore, the housing of this application may include a support member and a cover plate, which are detachable from each other. The wheel body and axle are located at the mounting point, allowing for easy removal of hair when hair becomes entangled in the wheel body or axle, as the wheel body and axle can be disassembled by hand. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the structure of a wheel assembly provided in one embodiment of this application.

[0036] Figure 2 This is a cross-sectional view of a wheel assembly provided in one embodiment of this application.

[0037] Figure 3 An exploded view of a wheel assembly provided in one embodiment of this application.

[0038] Figure 4 This is a schematic diagram of the structure of a cover plate provided in one embodiment of this application.

[0039] Figure 5 This is a schematic diagram of the structure of the support member provided in one embodiment of this application.

[0040] Figure 6 This is a schematic diagram of the structure of a wheel assembly provided for another embodiment of this application.

[0041] Figure 7 An exploded view of a wheel assembly provided for another embodiment of this application.

[0042] Figure 8 This is a schematic diagram of the structure of a cover plate provided for another embodiment of this application.

[0043] Figure 9 A schematic diagram of the structure of a support member provided for another embodiment of this application.

[0044] Explanation of reference numerals in the attached figures

[0045] Wheel assembly - 100; Housing - 110; Wheel body - 120; Axle - 130; Support - 111; Third groove - 1111; Fourth groove - 1112; First through hole - 1113; Second through hole - 1114; Through hole - 1115; Cover plate - 112; First groove - 1121; Second groove - 1122; Protrusion - 1123; Cantilever structure - 1124; Bending structure - 1125; Buckle - 1126; Flanged edge - 1127; Mounting part - 113; Opening - 114; Mounting cavity - 115; Hair concealing cavity - 116. Detailed Implementation

[0046] To make the technical solution and beneficial effects of this application more apparent and understandable, a detailed description is provided below by listing specific embodiments. The accompanying drawings are not necessarily drawn to scale, and local features may be enlarged or reduced to more clearly show the details of the local features; unless otherwise defined, the technical and scientific terms used herein have the same meanings as those in the technical field to which this application pertains.

[0047] As a specific embodiment of this application, such as Figures 1-3 As shown, this embodiment provides a wheel assembly 100, which may include a housing 110, a wheel body 120, and a wheel axle 130. The housing 110 may include a mutually detachable support member 111 and a cover plate 112, forming a mounting portion 113 when the cover plate 112 is connected to the support member 111; and an opening 114 is provided at the housing 110 and / or the support member 111. The wheel axle 130 passes through the wheel body 120 so that the wheel body 120 rotates about the wheel axle 130; the wheel axle 130 is disposed at the mounting portion 113, and the wheel body 120 extends from inside the housing 110 through the opening 114 to the outside of the housing 110. The mounting portion 113 of this embodiment may include a mounting cavity 115 and a feather-concealing cavity 116 located on at least one side of the opening 114. The feather-concealing cavity 116 is located on the side of the mounting cavity 115 near the opening 114.

[0048] Specifically, in this embodiment, the mounting part 113 may have a mounting cavity 115 and a hair-concealing cavity 116 provided on one side of the opening 114, or it may have a mounting cavity 115 and a hair-concealing cavity 116 on both sides of the opening 114. And the hair-concealing cavity 116 on each side is located on the side of the mounting cavity 115 that is close to the opening 114.

[0049] After the axle 130 passes through the wheel body 120, both sides of the axle 130 are located in the mounting cavity 115, and the wheel body 120, the axle 130, and the mounting cavity 115 are all coaxially arranged.

[0050] In this embodiment, a hair-concealing cavity 116 is provided on one or both sides of the opening. When hair is wrapped around the axle 130, it will continuously move towards the hair-concealing cavity 116 and then hide inside the hair-concealing cavity 116. The hair-concealing cavity 116 can accommodate a lot of hair, which makes it less likely to get stuck and also prevents the wrapped hair from being exposed.

[0051] As a specific embodiment of this application, the radial dimension of the mounting cavity 115 is the same as the radial dimension of the axle 130. The radial dimension of the hair-concealing cavity 116 is larger than the radial dimension of the axle 130.

[0052] Since the hair-concealing cavity 116 is located near the opening 114, when hair slowly wraps around the axle 130 from between the wheel body 120 and the opening 114, it will slowly move away from the axle 130 and into the hair-concealing cavity 116.

[0053] Theoretically, the larger the size of the hair-concealing cavity 116 along the wheel axle 130, the better. This allows it to conceal more hair, increasing the time it takes for the hair-concealing cavity 116 to be filled with hair, greatly delaying the time it takes for the small wheel to become completely stuck, extending the hair-cleaning interval, and improving the user experience.

[0054] Specifically, the dimension of the concealed hair cavity 116 along the axial direction of the axle 130 is smaller than the dimension of the axle 130, ensuring that a portion of the axle 130 extends to the mounting cavity 115. Specifically, in this embodiment, the width of the opening 114 is greater than or equal to the width of the wheel body 120, and the difference between the width of the opening 114 and the width of the wheel body 120 is 0 to 0.6 mm.

[0055] Specifically, in this embodiment, the wheel 120 is disposed at the opening 114 of the housing 110, and the difference between the width of the opening 114 and the width of the wheel 120 is approximately 0 to 0.6 mm. The gap between each side of the wheel 120 and the side of the opening 114 is less than or equal to 0.3 mm, making it difficult for hair to enter through the gap between the wheel 120 and the opening 114 and become entangled in the wheel 120 and the axle 130. In addition, the housing 110 in this embodiment may include a support member 111 and a cover plate 112. The support member 111 and the cover plate 112 are detachable from each other, and the wheel 120 and the axle 130 are disposed at the mounting part 113. When hair is entangled in the wheel 120 or the axle 130, the wheel 120 and the axle 130 can be detached from each other by hand, thereby facilitating the removal of hair.

[0056] As a specific embodiment of this application, the axial width of the outer side of the wheel body 120 in this embodiment is 2-7mm. For example, the width of the wheel body 120 can be 2mm, 3mm, 4mm, 5mm, 6mm or 7mm.

[0057] In this embodiment, the width of the wheel body 120 along the circumferential direction is designed to be 2-7mm. This smaller width reduces the contact area between the wheel body 120 and the ground, reduces the amount of hair stuck to the wheel body 120, and thus reduces the probability of hair entering the mounting part 113.

[0058] As a specific embodiment of this application, such as Figure 4 and Figure 5 As shown, in this embodiment, the cover plate 112 is provided with a first groove 1121 and a second groove 1122. The support member 111 is provided with a third groove 1111 and a fourth groove 1112. When the cover plate 112 and the support member 111 are connected together, the first groove 1121 and the third groove 1111 are correspondingly arranged to form an installation cavity 115, and the second groove 1122 and the fourth groove 1112 are correspondingly arranged to form a hair-concealing cavity 116.

[0059] Specifically, this application provides grooves (i.e., the first groove 1121, the second groove 1122, the third groove 1111, and the fourth groove 1112) at both the cover plate 112 and the support member 111. By interlocking the cover plate 112 and the support member 111, the grooves are also interlocked, thus forming the mounting part 113. When installing the axle 130 and the wheel body 120, the axle 130 is directly placed in the groove, and then the cover plate 112 and the support member 111 are interlocked. When the cover plate 112 and the support member 111 are disassembled, it is convenient to disassemble the axle 130 and the wheel body 120, which in turn facilitates cleaning hair from the axle 130 and the wheel body 120.

[0060] Specifically, in this embodiment, the first groove 1121 and the third groove 1111 have the same structure and are configured accordingly, and the second groove 1122 and the fourth groove 1112 have the same structure and are configured accordingly.

[0061] More specifically, in this embodiment, when the first groove 1121 and the third groove 1111 are engaged together, a cylindrical mounting cavity 115 is formed, and when the second groove 1122 and the fourth groove 1112 are engaged together, a cylindrical hair-concealing cavity 116 is formed.

[0062] As a specific embodiment of this application, a snap-fit ​​structure is provided between the cover plate 112 and the support member 111 to detachably snap-fit ​​the cover plate 112 and the support member 111 together. This embodiment uses the snap-fit ​​structure between the cover plate 112 and the support member 111 to enable a detachable connection between them, thereby facilitating the installation and removal of the wheel body 120 and the wheel axle 130, and facilitating the cleaning of hair from the wheel axle 130.

[0063] As one example, such as Figure 4 and Figure 5As shown, the snap-fit ​​structure of this embodiment may include a first through hole 1113 disposed on the support member 111 and a second through hole 1114 opposite to the first through hole 1113. The snap-fit ​​structure may also include a protrusion 1123 disposed on the cover plate 112 and a cantilever structure 1124 opposite to the protrusion 1123. The protrusion 1123 is snap-fitted to the first through hole 1113, and the cantilever structure 1124 is snap-fitted to the second through hole 1114.

[0064] Specifically, in this embodiment, the number of protrusions 1123 and first through holes 1113 can be one or more. Specifically, in this embodiment, there are two first through holes 1113 and two protrusions 1123. When the support member 111 and the cover plate 112 are installed together, the protrusions 1123 are first inserted into the first through holes 1113, and then the cover plate 112 is pressed so that the cantilever structure 1124 is engaged with the second through hole 1114. When the cover plate 112 and the support member 111 are disassembled, the cantilever structure 1124 is first pushed to disengage from the second through hole 1114, and then the protrusions 1123 are disengaged from the first through hole 1113 to complete the disassembly of the cover plate 112 and the support member 111.

[0065] As a specific embodiment of this application, the cantilever structure 1124 of this embodiment may include a bending structure 1125 and a snap fastener 1126. One end of the bending structure 1125 is connected to the cover plate 112, and extends from the cover plate 112 towards or away from the support member 111 before bending, so that the other end returns to a position close to or flush with the plane of the cover plate 112. The snap fastener 1126 is disposed on the outer side of the end of the bending structure 1125 away from the end connected to the cover plate 112 to engage with the support member 111.

[0066] The cantilever structure 1124 in this embodiment includes a bending structure 1125 and a snap fastener 1126. The bending structure 1125 provides the entire cantilever structure 1124 with a certain degree of elasticity, thus facilitating the engagement and disassembly of the cantilever structure 1124. The snap fastener 1126 facilitates engagement with the through hole 1115. When it is necessary to disassemble the mounting component from the cover plate 112, by pressing the bending structure 1125 of the cantilever structure 1124, the bending structure 1125 deforms under force, thereby causing the snap fastener 1126 to disengage from the through hole. Then, by driving the bending structure 1125 outward, the entire cantilever structure 1124 is disengaged from the support member 111, thus completing the disassembly action.

[0067] Specifically, in this embodiment, the bending structure 1125 extends close to the support member 111, thus ensuring that the bending structure 1125 does not protrude below the cover plate 112.

[0068] As a specific embodiment of this application, a flange 1127 is provided at the end of the bending structure 1125 away from the cover plate 112. When the bending structure 1125 is engaged with the support member 111, the flange 1127 protrudes out of the plane of the cover plate 112 or is on the same plane as the cover plate 112.

[0069] Specifically, the flange 1127 at the bending structure 1125 in this embodiment is mainly to facilitate the user to push the cantilever structure 1124, thereby ensuring that the cantilever structure 1124 is disassembled from the through hole 1115 after deformation, and thus the cover plate 112 is removed from the support member 111.

[0070] As another specific embodiment, the wheel assembly 100 of this embodiment has a basically the same structure as the wheel assembly 100 in the previous embodiment, the difference being in the structure and layout of the snap-fit ​​structure. The specific structure of the wheel assembly in this embodiment is as follows: Figure 6 and Figure 7 As shown. The identical structures will not be repeated in this embodiment; only the differences between the two embodiments will be described in detail below.

[0071] Specifically, such as Figure 8 and Figure 9 As shown, the snap-fit ​​structure of this embodiment may include two through holes 1115 and two cantilever structures 1124. The two through holes 1115 are located on opposite sides of the support member 111. The two cantilever structures 1124 are located on opposite sides of the cover plate 112. Each cantilever structure 1124 is detachably snap-fitted with one of the through holes.

[0072] In this embodiment, two cantilever structures 1124 are provided, each corresponding to a through hole 1115. When the cover plate 112 and the support member 111 are installed together, one cantilever structure 1124 can be engaged with the through hole 1115 first, and then the other cantilever structure 1124 can be pressed into the other through hole 1115. When the cover plate 112 and the support member 111 are disassembled, one cantilever structure 1124 is pressed to disengage it from the through hole 1115, and then the cover plate 112 is driven to disengage the other cantilever structure 1124 from the other through hole 1115, thus completing the disassembly.

[0073] In this application, unless otherwise expressly defined, the terms "above," "on top of," "over," "above," "below," "below," "below," or "below" for "first feature over second feature" can refer to the first and second features being in direct contact, or to the first and second features being in indirect contact through an intermediate medium. Furthermore, "above," "over," and "below" for "first feature over second feature" can mean the first feature is directly above or diagonally above the second feature, or simply indicates that the horizontal height of the first feature is higher than the horizontal height of the second feature. Similarly, "below," "below," and "below" for "first feature over second feature" can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the horizontal height of the first feature is lower than the horizontal height of the second feature.

[0074] It should be understood that the above embodiments are exemplary and are not intended to encompass all possible implementations included in the claims. Various modifications and changes can be made to the above embodiments without departing from the scope of this disclosure. Similarly, the various technical features of the above embodiments can be arbitrarily combined to form other embodiments of this application that may not be explicitly described. Therefore, the above embodiments only illustrate several implementations of this application and do not limit the scope of protection of this patent application.

Claims

1. A wheel assembly, characterized in that, include: A housing, the housing including mutually detachable support members and a cover plate, wherein the cover plate forms a mounting portion when connected to the support member, and an opening is provided at the housing and / or the support member; Wheel body; An axle passes through the wheel body to allow the wheel body to rotate about the axle; the axle is disposed at the mounting portion, and the wheel body extends from inside the housing through the opening to the outside of the housing; The mounting portion includes a mounting cavity and a hair-concealing cavity located on at least one side of the opening; the hair-concealing cavity is located on the side of the mounting cavity closer to the opening.

2. The wheel assembly according to claim 1, characterized in that, The radial dimension of the mounting cavity is the same as the radial dimension of the axle; the radial dimension of the hair-concealing cavity is greater than the radial dimension of the axle.

3. The wheel assembly according to claim 1, characterized in that, The cover plate is provided with a first groove and a second groove; The support member is provided with a third groove and a fourth groove; When the cover plate is connected to the support member, the first groove and the third groove are correspondingly arranged to form the mounting cavity, and the second groove and the fourth groove are correspondingly arranged to form the hair-concealing cavity.

4. The wheel assembly according to claim 1, characterized in that, The width of the opening is greater than or equal to the width of the wheel body, and the difference between the width of the opening and the width of the wheel body is 0 to 0.6 mm.

5. The wheel assembly according to claim 1, characterized in that, The width of the outer side of the wheel along the axial direction is 2-7mm.

6. The wheel assembly according to claim 1, characterized in that, A snap-fit ​​structure is provided between the cover plate and the support member to allow the cover plate and the support member to be detachably snapped together.

7. The wheel assembly according to claim 6, characterized in that, The snap-fit ​​structure includes: A first through hole and a second through hole opposite to the first through hole are provided at the support member; and A protrusion provided on the cover plate and a cantilever structure opposite to the protrusion; The protrusion is engaged with the first through hole, and the cantilever structure is engaged with the second through hole.

8. The wheel assembly according to claim 6, characterized in that, The snap-fit ​​structure includes: Two through holes are provided on opposite sides of the support member; Two cantilever structures are provided on opposite sides of the cover plate; Each of the cantilever structures is detachably snapped into one of the through holes.

9. The wheel assembly according to claim 7 or 8, characterized in that, The cantilever structure includes: A bending structure, one end of which is connected to the cover plate, extends from the cover plate toward a side closer to or away from the support member and then bends, so that the other end returns to a position close to or flush with the plane of the cover plate; and A snap fastener is provided on the outer side of the bent structure at the end furthest from the end connected to the cover plate to engage with the support member.

10. The wheel assembly according to claim 9, characterized in that, A flange is provided at one end of the bending structure away from the cover plate. When the bending structure is engaged with the support member, the flange protrudes from the plane of the cover plate or is on the same plane as the cover plate.

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