A running wheel structure

Abstract

The utility model relates to hamster running wheel technical field, concretely relates to a running wheel structure, including support device and connecting piece, support device includes bearing piece, and the bearing piece has the axle section on, and the inside of connecting piece is integrally formed and is connected with bearing, and bearing rotationally covers the outside of axle section, the outside of connecting pipe is provided with first connecting part, still including running wheel body, and the one side of running wheel body sets up mounting hole to be installed in the outside of connecting pipe, locking assembly includes second connecting part and stopper, and second connecting part and first connecting part are detachably fixedly connected and lock the running wheel body on connecting pipe, and the one side of second connecting part sets up stopper to carry out axial location to second connecting part, and connecting pipe is covered on axle section through bearing, thereby making connecting pipe can rotate smoothly, and the integral forming between bearing and connecting pipe can effectively prevent the loose and the displacement phenomenon of bearing.

Description

Technical Field

[0001] This utility model relates to the field of hamster running wheel technology, specifically to a running wheel structure. Background Technology

[0002] As people's living standards continue to improve, more and more people are starting to keep pets. Compared to cats and dogs, small pet hamsters take up little space and are easy to care for, making them increasingly popular as pets.

[0003] To facilitate hamster movement, hamsters are usually placed in running wheels. For example, the applicant's previous patent application, publication number CN217657657U, discloses that by setting a bearing between the running wheel body and the support device, the friction loss between the running wheel body and the support device can be reduced and the stability of the running wheel can be improved. At the same time, by setting a limiting structure on the support device, not only can the inner ring of the bearing be locked, but the axial direction of the bearing can also be limited to prevent the bearing from shifting or falling off the mounting part.

[0004] However, the applicant found some shortcomings in the above patent. For example, the structural design is relatively complex because the bearing needs to be limited. Although the bearing is limited by the limiting structure, there are still manufacturing and assembly errors, resulting in poor bearing performance. Therefore, it is necessary to improve it. Utility Model Content

[0005] To address the problem of complex running wheel structures in current models, this invention provides a new running wheel structure.

[0006] The technical solution of this utility model is as follows:

[0007] On one hand, this utility model provides a running wheel structure, characterized in that: it includes a support device, including a bearing member, the bearing member having a shaft segment; a connecting member, including a connecting pipe, the inner side of the connecting pipe being integrally connected to a bearing, the bearing being rotatably sleeved on the outer side of the shaft segment; a first connecting portion is provided on the outer side of the connecting pipe; a running wheel body, one side of which has an installation hole for fitting onto the outer side of the connecting pipe; a locking assembly, including a second connecting portion and a limiting member, the second connecting portion and the first connecting portion being detachably fixedly connected and locking the running wheel body onto the connecting pipe; the limiting member is provided on one side of the second connecting portion to axially limit the second connecting portion.

[0008] Furthermore, the connector further includes a first limiting wall disposed on the side of the connecting pipe away from the running wheel body along its axial direction to abut against the outer wall of the running wheel body; the second connecting portion has a second limiting wall at one end facing the first limiting wall to cooperate with the first limiting wall to axially limit the running wheel body; and / or, the connector includes a positioning portion, the inner wall of the mounting hole contacts and engages with the outer wall of the positioning portion; and the cross-section of the mounting hole and the positioning portion is non-circular; and / or, the first connecting portion is configured as an external thread portion; the second connecting portion is configured as an internal thread portion that can be threadedly connected to the external thread portion.

[0009] Furthermore, the connecting pipe is a plastic part, and the bearing is a metal part; the bearing and the inner wall of the connecting pipe are integrally injection molded.

[0010] Furthermore, the bearing member also includes a first limiting step located at the first end of the shaft segment; the first limiting step abuts against the first end of the connector to limit it; the first end is the end of the shaft segment that is axially away from the running wheel body.

[0011] Furthermore, a screw is connected to the second end of the shaft segment, the screw extending axially through the connector and into the interior of the running wheel body; the limiting member is located inside the running wheel body and is threadedly connected to the screw.

[0012] Furthermore, the limiting member is configured as a cover to cover and abut against the second connecting portion; the inner side of the cover has internal threads for threaded connection with the screw.

[0013] Furthermore, the support device also includes a base and a column connected to the base; the support member is provided with a lifting adjustment component connected to the column to adjust the height of the support member.

[0014] Furthermore, the lifting adjustment assembly includes a sleeve connected to the first end of the shaft segment, and the opening of the sleeve is vertical. The side wall of the sleeve has a threaded through hole and a hand-tightening screw is connected to its internal thread.

[0015] Furthermore, the shaft segment is a metal part, the sleeve is a plastic part, the side wall of the sleeve has a hole extending in the horizontal direction and the shaft segment is disposed in the hole, and the shaft segment and the sleeve are integrally injection molded.

[0016] The beneficial effects achieved by this utility model are as follows:

[0017] The running wheel structure of this utility model uses a support device to support the running wheel body, ensuring reliable installation of the running wheel body. The connecting pipe is sleeved on the shaft section by a bearing, allowing the connecting pipe to rotate smoothly. The bearing and the connecting pipe are integrally formed, which can effectively prevent the bearing from loosening or shifting. After the running wheel body is sleeved on the outside of the connecting pipe, the running wheel body is locked onto the connecting pipe by a detachable fixed connection between the second connecting part and the first connecting part. This allows the connecting pipe and the running wheel body to rotate synchronously. At the same time, a limiting member is set on one side of the second connecting part to axially limit the second connecting part and prevent the running wheel body from coming off. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0021] Figure 1 This is a first three-dimensional structural schematic diagram of an embodiment of this application;

[0022] Figure 2 This is a second three-dimensional structural schematic diagram of an embodiment of this application;

[0023] Figure 3 This is a cross-sectional structural diagram of an embodiment of this application;

[0024] Figure 4 yes Figure 3 Enlarged view of point A;

[0025] Figure 5 This is a schematic diagram of the first partial exploded structure according to an embodiment of this application;

[0026] Figure 6 This is a schematic diagram of the second partial exploded structure according to an embodiment of this application.

[0027] In the picture,

[0028] 100. Support device; 110. Bearing component; 111. Shaft section; 112. First limiting step; 113. Screw; 114. Sleeve; 115. Hand screw; 120. Base; 130. Column; 200. Connecting component; 210. Connecting pipe; 220. Bearing; 230. First connecting part; 240. First limiting wall; 300. Running wheel body; 310. Mounting hole; 400. Locking assembly; 410. Second connecting part; 411. Second limiting wall; 420. Limiting component. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by a person of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0030] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0031] For ease of description, spatial relative terms may be used in this text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in this text will be interpreted accordingly.

[0032] This application discloses a running wheel, including a support device 100 and a connector 200. The support device 100 includes a bearing 110 with a shaft segment 111. The connector 200 includes a connecting pipe 210, with a bearing 220 integrally formed and connected to the inner side of the connecting pipe 210. The bearing 220 is rotatably sleeved on the outer side of the shaft segment 111. A first connecting portion 230 is provided on the outer side of the connecting pipe 210. The application also includes a running wheel body 300, with a mounting hole 310 on one side of the running wheel body to fit onto the outer side of the connecting pipe 210. A locking assembly 400 includes a second connecting portion 410 and a limiting member 420. The second connecting portion 410 and the first connecting portion 230 are detachably fixedly connected, locking the running wheel body 300 onto the connecting pipe 210. The limiting member 420 is provided on one side of the second connecting portion 410 to axially limit the second connecting portion 410.

[0033] In this embodiment, the support device 100 serves as a support for the running wheel body 300, ensuring reliable installation of the running wheel body 300. The connecting pipe 210 is sleeved on the shaft section 111 via the bearing 220, allowing the connecting pipe 210 to rotate smoothly. Furthermore, the bearing 220 and the connecting pipe 210 are integrally formed, effectively preventing loosening or displacement of the bearing 220. After the running wheel body 300 is fitted onto the outside of the connecting pipe 210, it is connected to the first connecting part 230 via the second connecting part 410. The two parts are detachably fixedly connected to lock the running wheel body 300 onto the connecting pipe 210, thereby enabling the connecting pipe 210 and the running wheel body 300 to rotate synchronously. At the same time, a limiting member 420 is provided on one side of the second connecting part 410 to axially limit the second connecting part 410 and prevent the running wheel body 300 from coming off. It should be understood that there can be one or more limiting members 420. The limiting member 420 can be, for example, a limiting step or a limiting surface, as long as it can achieve the axial limiting function.

[0034] Optionally, the shaft segment 111 is provided with an axial positioning groove to axially limit the bearing 220.

[0035] In an optional or preferred embodiment, the running wheel body 300 can be a detachable closed hollow structure, such as having a hollow wheel body and a cover detachably connected to the wheel body; or it can be a hollow wheel body with an open opening.

[0036] In an optional or preferred embodiment, the connector 200 further includes a first limiting wall 240 disposed on the side of the connecting pipe 210 away from the running wheel body 300 along its axial direction to abut against the outer wall of the running wheel body 300; the second connecting part 410 has a second limiting wall 411 at one end facing the first limiting wall 240 to cooperate with the first limiting wall 240 to axially limit the running wheel body 300; the running wheel body 300 is axially limited and locked by the cooperation of the first limiting wall 240 and the second limiting wall 421, so that the running wheel body 300 cannot move axially and can rotate together with the connecting pipe 210.

[0037] In an optional or preferred embodiment, the connector 200 includes a positioning part 250, the inner wall of the mounting hole 310 contacts and engages with the outer wall of the positioning part 250, and the cross-sections of the mounting hole 310 and the positioning part 250 are non-circular. This allows the running wheel body 300 to be driven not only by the locking of the first limiting wall 240 and the second limiting wall 421 by the connecting pipe 210, but also directly by the positioning part 250 on the connecting pipe 210. The non-circular cross-section design provides a larger rotational pushing area between the two parts; the non-circular design allows for... Figure 5 The shape shown is a square, but it can also be a triangle, rhombus, etc.

[0038] In an optional or preferred embodiment, the positioning part 250 protrudes radially from the connecting pipe 210 and is disposed between the first limiting wall 240 and the first connecting part 230, thereby engaging with the mounting hole 310 on the running wheel body 300 for positioning.

[0039] In an optional or preferred embodiment, the first connection 230 is configured as an external threaded portion; the second connection 410 is configured as an internal threaded portion that can be threadedly connected to the external threaded portion, thereby facilitating the connection and disassembly of the two.

[0040] In an optional or preferred embodiment, the connecting pipe 210 is made of plastic, and the bearing 220 is made of metal; the bearing 220 and the inner wall of the connecting pipe 210 are integrally injection molded; the bearing 220 being a metal component allows for a smoother rotational fit with the shaft segment 111; the shaft segment 111 is also preferably made of metal to ensure smooth rotation between the two and a longer service life. Making the connecting pipe 210 a plastic component reduces cost and weight.

[0041] In an optional or preferred embodiment, the carrier 110 further includes a first limiting step 112 located at the first end of the shaft segment 111; the first limiting step 112 abuts against the first end of the connector 200 to limit it; the first end is the end of the shaft segment 111 that is axially away from the running wheel body 300; thereby preventing the connector 200 from detaching from the first end of the shaft segment 111.

[0042] In an optional or preferred embodiment, the second end of the shaft segment 111 is connected to a screw 113, which extends axially through the connector 200 and into the interior of the running wheel body 300; a limiting member 420 is located inside the running wheel body 300 and threadedly connected to the screw 113; by connecting the limiting member 420 to the fixed screw 113, the limiting member 420 will not move axially, thereby enabling stable axial limiting of the second connecting part 410 and the running wheel body 300; simultaneously, in conjunction with the first limiting step 112, bidirectional axial limiting of the connecting pipe 210 and the running wheel body 300 can be achieved; such as Figure 4 As shown, the screw 113 can extend from one end of the shaft segment 111 into the interior of the running wheel body 300. The diameter of the screw 113 can be less than or equal to the diameter of the shaft segment 111, which facilitates assembly.

[0043] In an optional or preferred embodiment, the limiting member 420 is configured as a cover to cover and abut against the second connecting part 410; the inner side of the cover has an internal thread for threaded connection with the screw 113; the cover can shield other components entering the running wheel body 300 to prevent them from interfering with the hamster inside the running wheel body 300; preferably, the outer side of the cover is an arc surface; the inner middle of the cover has an internal thread for threaded connection with the screw 113.

[0044] In an optional or preferred embodiment, the support device 100 further includes a base 120 and a column 130 connected to the base 120; the support member 110 is provided with a lifting adjustment component connected to the column 130 to adjust the height of the support member 110 as needed.

[0045] In an optional or preferred embodiment, the lifting adjustment assembly includes a sleeve 114 connected to the first end of the shaft segment 111, with the opening of the sleeve 114 being vertical. A threaded through hole is formed on the side wall of the sleeve 114, and a hand-tightening screw 115 is connected to its internal thread. The height position of the sleeve 114 is adjusted by sliding it outside the column 130, and the sleeve 114 can be locked onto the column 130 by tightening the hand-tightening screw 115. Optionally, the column 130 has a certain degree of elasticity to facilitate locking. Optionally, holes are spaced vertically along the column 130 to facilitate locking.

[0046] In an optional or preferred embodiment, the shaft segment 111 is a metal part, and the sleeve 114 is a plastic part. The side wall of the sleeve 114 has a hole extending in the horizontal direction, and the shaft segment 111 is disposed in the hole. The shaft segment 111 and the sleeve 114 are integrally injection molded. Making the shaft segment 111 a metal part is beneficial for its smooth rotational engagement with the bearing 220 part. Making the sleeve 114 a plastic part can reduce weight and lower costs.

[0047] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also mean including the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0048] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0049] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A running wheel structure, characterized in that: include The support device (100) includes a carrier (110) having a shaft segment (111). The connector (200) includes a connecting pipe (210), on the inner side of which a bearing (220) is integrally formed and connected, and the bearing (220) is rotatably sleeved on the outer side of the shaft segment (111); a first connecting part (230) is provided on the outer side of the connecting pipe (210). The running wheel body (300) has a mounting hole (310) on one side to fit onto the outside of the connecting pipe (210); The locking assembly (400) includes a second connecting part (410) and a limiting member (420). The second connecting part (410) is detachably and fixedly connected to the first connecting part (230) and locks the running wheel body (300) onto the connecting pipe (210). The limiting member (420) is disposed on one side of the second connecting part (410) to axially limit the second connecting part (410).

2. The running wheel structure according to claim 1, characterized in that: The connector (200) further includes a first limiting wall (240) disposed on the side of the connecting pipe (210) away from the running wheel body (300) along its axial direction to abut against the outer wall of the running wheel body (300); the second connecting part (410) has a second limiting wall (411) at one end facing the first limiting wall (240) to cooperate with the first limiting wall (240) to axially limit the running wheel body (300); And / or, the connector (200) includes a positioning part (250), the inner wall of the mounting hole (310) is in contact with the outer wall of the positioning part (250); and the cross-section of the mounting hole (310) and the positioning part (250) is non-circular.

3. The running wheel structure according to claim 1, characterized in that: The connecting pipe (210) is a plastic part, and the bearing (220) is a metal part; the bearing (220) and the inner wall of the connecting pipe (210) are integrally injection molded.

4. The running wheel structure according to claim 1, characterized in that: The bearing member (110) further includes a first limiting step (112) located at the first end of the shaft segment (111); the first limiting step (112) abuts against the first end of the connector (200) to limit it; the first end is the end of the shaft segment (111) that is axially away from the running wheel body (300).

5. The running wheel structure according to claim 1, characterized in that: The second end of the shaft segment (111) is connected to a screw (113), which extends axially through the connector (200) and into the interior of the running wheel body (300); the limiting member (420) is located inside the running wheel body (300) and is threadedly connected to the screw (113).

6. The running wheel structure according to claim 5, characterized in that: The limiting member (420) is configured as a cover to cover and abut against the second connecting part (410); the inner side of the cover has an internal thread to be threadedly connected to the screw (113).

7. The running wheel structure according to any one of claims 1-6, characterized in that: The support device (100) also includes a base (120) and a column (130) connected to the base (120); the support member (110) is provided with a lifting adjustment component connected to the column (130) to adjust the height of the support member (110).

8. The running wheel structure according to claim 7, characterized in that: The lifting adjustment assembly includes a sleeve (114) connected to the first end of the shaft segment (111), and the opening of the sleeve (114) is vertical. The side wall of the sleeve (114) is provided with a threaded through hole and a hand screw (115) is connected to its internal thread.

9. The running wheel structure according to claim 8, characterized in that: The shaft segment (111) is a metal part, the sleeve (114) is a plastic part, the side wall of the sleeve (114) has a hole extending in the horizontal direction and the shaft segment (111) is disposed in the hole, and the shaft segment (111) and the sleeve (114) are integrally formed by injection molding.

10. The running wheel structure according to claim 1, characterized in that, The first connecting part (230) is configured as an external threaded part; the second connecting part (410) is configured as an internal threaded part that can be threadedly connected to the external threaded part.

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