A single wheel structure capable of bouncing eccentrically adjustable
By using a single-wheel structure with elastic elements and eccentric adjustment components on the shower door, the problem of the sliding door not fitting the track is solved, achieving smooth and quiet sliding and simplifying the installation process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN NEPTUM SANITARY WARE
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-24
AI Technical Summary
In existing sliding shower doors, the rollers at the bottom of the sliding door often fail to fit snugly against the track at the bottom of the door frame, causing them to wobble and come off, affecting the smoothness and quietness of the sliding motion.
A single-wheel structure with bounce and eccentric adjustment is adopted, including a wheel body, an elastic element and an eccentric adjustment component. The elastic element makes the pulley fit tightly against the groove wall of the track, so as to realize the self-adaptive adjustment of the pulley.
Ensuring smooth and quiet sliding of the sliding door improves product quality and simplifies the installation process.
Smart Images

Figure CN224549901U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a shower door roller, and more particularly to a single-wheel structure that can bounce and be eccentrically adjustable. Background Technology
[0002] There are several ways to open and close the shower door in a shower room, one of which is the sliding type.
[0003] In a push-pull structure, tracks are provided at both the top and bottom of the door frame; while rollers are installed at both the top and bottom of the sliding door. The rollers at the top of the sliding door engage with the tracks on the upper part of the door frame and roll in cooperation with them, while the rollers at the bottom of the sliding door engage with the tracks on the lower part of the door frame and roll in cooperation with them, thereby achieving smooth pushing and pulling of the sliding door.
[0004] Due to gravity, the rollers at the top of the sliding door will always be in contact with the upper track. However, because the upper track sags or the ground is uneven, the rollers at the bottom of the sliding door often get stuck in the lower track of the door frame and cannot always be in contact with it. If they are not in contact, there will be gaps, and the sliding door will shake a lot. If the sliding door is very large, its gravity will cause the upper track to bend more, and the lower rollers may even come off the lower track.
[0005] Therefore, the applicant designed a single-wheel structure that can bounce and be eccentrically adjustable to solve the above problems. Summary of the Invention
[0006] In order to overcome the shortcomings of the existing technology, this utility model provides a single wheel structure that can bounce and be eccentrically adjustable.
[0007] The technical solution adopted by this utility model to solve its technical problem is:
[0008] A single-wheel structure capable of bouncing and eccentric adjustment is characterized by comprising a wheel body, an elastic element, an eccentric adjustment component for adjusting the position of a sliding door, and a pulley that can be located in a track groove. The eccentric adjustment component is rotatably connected to the wheel body, and the elastic element is disposed on the wheel body and the eccentric adjustment component. The pulley is fixed to the wheel body, and the wheel body rotates due to the elasticity of the elastic element, thereby causing the pulley to be tightly attached to the groove wall of the track groove.
[0009] The eccentric adjustment assembly includes an end cap, a locking wheel, an eccentric adjustment wheel, and a locking screw. The eccentric adjustment wheel has an eccentric shaft supporting the sliding door and a through hole 1 passing through the eccentric shaft. The locking wheel has a through hole 2, and the wheel body has a through hole 3. The locking screw passes through through holes 1, 2, and 3 and connects to the end cap to lock the locking wheel, the eccentric adjustment wheel, and the sliding door together. The wheel body is restricted between the end cap and the locking wheel and cannot come out.
[0010] The end cap includes a cap rod and a limiting protrusion ring located on the cap rod. The cap rod has a connecting screw hole, and the locking screw cooperates with the connecting screw hole. The wheel body has a limiting hole, and the through hole is located at the bottom of the limiting hole. The limiting protrusion ring is located in the limiting hole and can abut against the bottom of the limiting hole.
[0011] The elastic element is a torsion spring. The locking screw passes through the torsion spring, and the first torsion arm of the torsion spring is fixed to the locking wheel, while the second torsion arm of the torsion spring is fixed to the wheel body.
[0012] The wheel body is provided with a wheel groove, and the torsion spring and the locking wheel are both located in the wheel groove.
[0013] One side of the locking wheel is provided with a torsion spring fixing groove 1, and the bottom of the wheel groove is provided with a torsion spring fixing groove 2. One end of the torsion spring and the first torsion arm are located in the torsion spring fixing groove 1, and the other end of the torsion spring and the second torsion arm are located in the torsion spring fixing groove 2.
[0014] The wheel groove is provided with a limiting protrusion one, and the locking wheel is provided with a limiting protrusion two on one side that can abut against the limiting protrusion one.
[0015] It also includes a hook, the wheel body has a side hole that communicates with the wheel groove, the side of the locking wheel has a side groove, and the end of the hook can be inserted into the side groove from the side hole.
[0016] The locking wheel is provided with a positioning rod, and the eccentric shaft is provided with a positioning hole, into which the positioning rod is inserted.
[0017] The wheel body is provided with protrusions.
[0018] The beneficial effects of this utility model are as follows: The wheel body of this utility model rotates due to the elasticity of the elastic element, thereby making the pulley tightly attached to the groove wall of the track groove. Therefore, no matter if the upper track sags, the ground is uneven, or even if the upper track is significantly bent, the lower pulley will deflect due to the elastic force of the elastic element, thus always keeping it tightly attached to the groove wall of the track groove. This ensures the smoothness and quietness of the sliding door, improves the quality of the product, and also makes it easier to install the lower pulley and the track groove. Attached Figure Description
[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0020] Figure 1 This is a structural view of the present invention assembled together;
[0021] Figure 2 This is an exploded structural view of the present invention;
[0022] Figure 3 This is a cross-sectional structural view of the present invention;
[0023] Figure 4 This is a structural view of the locking wheel;
[0024] Figure 5 This is a structural view of the wheel body;
[0025] Figure 6 This is a schematic diagram of the structure in conjunction with a sliding door. Detailed Implementation
[0026] The advantages and features of this disclosure, as well as its implementation methods, will be illustrated by the following embodiments described with reference to the accompanying drawings. However, this disclosure may be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be comprehensive and complete, and will fully convey the scope of this disclosure to those skilled in the art. Furthermore, this disclosure is limited only by the scope of the claims.
[0027] The shapes, dimensions, scales, angles, and numbers disclosed in the accompanying drawings used to describe embodiments of this disclosure are merely examples, and therefore this disclosure is not limited to the details shown. Throughout this specification, the same reference numerals refer to the same elements. In the following description, detailed descriptions of relevant known functions or configurations will be omitted where it is determined that such detailed descriptions would unnecessarily obscure the focus of this disclosure. Where the terms “comprising,” “having,” and “including” are used in this specification, additional components may be added unless “only” is used. Unless otherwise indicated, singular terms may include plural forms.
[0028] When interpreting components, even if not explicitly described, the components are understood to include a range of tolerances.
[0029] When describing positional relationships, such as "on," "above," "below," and "adjacent to," one or more parts may be arranged between two other parts unless "immediately following" or "directly" is used.
[0030] When describing temporal relationships, such as when time sequence is described as “after,” “following,” “next,” and “before,” discontinuous cases may be included unless “exactly” or “directly” is used.
[0031] It should be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from other elements. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element, without departing from the scope of this disclosure.
[0032] As will be fully understood by those skilled in the art, the features of the different embodiments of this disclosure may be coupled or combined with each other in part or in whole, and may cooperate with each other and be technically driven in various ways. The embodiments of this disclosure may be implemented independently of each other, or may be implemented together in an interdependent relationship.
[0033] Reference Figures 1 to 6 This utility model discloses a single-wheel structure that can bounce and be eccentrically adjustable, including a wheel body 1, an elastic element 2, an eccentric adjustment component 3 for adjusting the position of a sliding door 100, and a pulley 5 that can be located in a track groove 4. The eccentric adjustment component 3 is rotatably connected to the wheel body 1, and the elastic element 2 is disposed on the wheel body 1 and the eccentric adjustment component 3. The pulley 5 is fixed to the wheel body 1, and the wheel body 1 rotates due to the elasticity of the elastic element 2, thereby causing the pulley 5 to be tightly attached to the groove wall of the track groove 4. In the above structure, the eccentric adjustment component 3 and the sliding door 100 are fixed together and the position of the sliding door 100 can be adjusted. This application adds the elastic element 2, and the wheel body 1 and the eccentric adjustment component 3 are rotatably connected to the wheel body 1, and the position of the sliding door 100 can be adjusted. The adjustment components 3 can rotate relative to each other. Therefore, when installing the sliding door 100, the pulley 5 and the wheel body 1 can be rotated together by a certain angle, making it easier to insert the pulley 5 into the groove of the track groove 4. When the wheel body 1 rotates, it will twist the elastic element 2. After the pulley 5 is inserted, the elastic element 2 returns to its original state, thereby driving the wheel body 1 and the pulley 5 to rotate in the opposite direction, so that the pulley 5 is tightly attached to the groove wall of the track groove 4. The above installation is simple and saves the time of the installer. Moreover, after the pulley 5 is inserted into the track groove 4, the pulley 5 will be deflected by the elastic force of the elastic element 2, so that it will always be tightly attached to the groove wall of the track groove 4, ensuring the smoothness and quietness of the sliding door 100 and improving the quality of the product. As a preferred structure, the wheel body 1 is provided with a protrusion 6. The protrusion 6 is easier for the installer to operate. The wheel body 1 can be rotated by pressing the protrusion 6 by hand. The pulley 5 of this application is a conventional design, so the specific structure of the pulley 5 and its installation structure with the wheel body 1 are not described in detail.
[0034] As shown in the figure, the eccentric adjustment assembly 3 includes an end cap 7, a locking wheel 8, an eccentric adjustment wheel 9, and a locking screw 10. The eccentric adjustment wheel 9 is provided with an eccentric shaft 91 supporting the sliding door 100 and a through hole 92 passing through the eccentric shaft 91. The locking wheel 8 is provided with a through hole 81, and the wheel body 1 is provided with a through hole 11. The locking screw 10 passes through the through hole 92, the through hole 81, and the through hole 11 and connects with the end cap 7 to lock the locking wheel 8, the eccentric adjustment wheel 9, and the sliding door 100 into one unit. The wheel body 1 is restricted between the end cap 7 and the locking wheel 8 and cannot come out. The locking wheel 8 of this application is provided with a positioning rod 82, and the eccentric shaft 91 is provided with a positioning hole 93. The positioning rod 82 is inserted into the positioning hole 93. Through the cooperation between the positioning rod 82 and the positioning hole 93, it is ensured that the eccentric adjustment wheel 9 and the locking wheel 8 will not rotate relative to each other but will rotate synchronously.
[0035] As described above, the sliding door 100 has a door hole that mates with the eccentric shaft 91, and the sliding door 100 is located between the locking wheel 8 and the eccentric adjustment wheel 9. Therefore, when the locking screw 10 locks the locking wheel 8 and the eccentric adjustment wheel 9, it also locks the eccentric adjustment assembly 3 and the sliding door 100 together. Thus, during eccentric adjustment, it is only necessary to loosen the locking screw 10 and then use a wrench to turn the eccentric adjustment wheel 9. The eccentric shaft 91 will rotate around the locking screw 10, thereby driving the sliding door 100 to move and realize the fine adjustment of the angle and position of the sliding door 100, thereby realizing the function of eccentric adjustment.
[0036] As shown in the figure, the end cap 7 includes a cap rod 71 and a limiting protrusion 72 located on the cap rod 71. The cap rod 71 has a connecting screw hole 73. The locking screw 10 cooperates with the connecting screw hole 73. The wheel body 1 has a limiting hole 12. The through hole 3 11 is located at the bottom of the limiting hole 12. The limiting protrusion 72 is located in the limiting hole 12 and can abut against the bottom of the limiting hole 12. Therefore, when the locking screw 10 cooperates with the connecting screw hole 73 to lock, the cap rod 71 passes through the through hole 3 11 and only presses against the locking wheel 8. Because the length of the cap rod 71 is longer than the length of the through hole 3 11, the limiting protrusion 72 does not contact the bottom of the limiting hole 12 to lock the wheel body 1. Thus, the wheel body 1 can rotate around the cap rod 71 or the locking screw 10 as the axis.
[0037] In this application, the elastic element 2 is a torsion spring, and the locking screw 10 also passes through the torsion spring. One torsion arm of the torsion spring is fixed to the locking wheel 8, while the other torsion arm is fixed to the wheel body 1. Therefore, the torsion spring can push the wheel body 1 to rotate relative to the locking wheel 8 through the deformation of the torsion arms. Specifically, the wheel body 1 is provided with a wheel groove 13, and both the torsion spring and the locking wheel 8 are located in the wheel groove 13. To position the torsion spring, a torsion spring fixing groove 83 is provided on one side of the locking wheel 8, and a torsion spring fixing groove 14 is provided at the bottom of the wheel groove 13. One end of the torsion spring and the first torsion arm are located in the torsion spring fixing groove 83, and the other end of the torsion spring and the second torsion arm are located in the torsion spring fixing groove 14. Of course, in order to control the rotation range within the required range, a limiting protrusion 15 is provided in the wheel groove 13, and a limiting protrusion 84 is provided on one side of the locking wheel 8 that can abut against the limiting protrusion 15. In this way, after the wheel body 1 rotates a certain angle, the limiting protrusion 15 can abut against the limiting protrusion 84, thereby limiting the rotation angle of the wheel body 1 to 90 degrees.
[0038] As shown in the figure, it also includes a hook 200. The wheel body 1 is provided with a side hole 16 that communicates with the wheel groove 13. The side of the locking wheel 8 is provided with a side groove 85. The end of the hook 200 can be inserted into the side groove 85 through the side hole 16. In order to facilitate installation, this application requires the torsion spring and the locking wheel 8 to be installed into the wheel groove 13 first. However, the torsion spring and the locking wheel 8 are not directly fixed to the wheel body 1, so the above three components are easy to separate. Therefore, during assembly, the above three components are temporarily fixed by inserting the end of the hook 200 into the side groove 85 through the side hole 16. Then, the locking screw 10 is used to assemble and lock the eccentric adjusting wheel 9 installed on the sliding door 100. This makes the installation easier. After locking, the hook 200 can be pulled out and discarded, which greatly reduces the assembly difficulty and time for the installer.
[0039] For aesthetic purposes, the eccentric adjustment wheel 9 is covered with a decorative cover 300.
[0040] The above provides a detailed description of a single-wheel structure with bouncing and eccentric adjustment provided by the embodiments of this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.
Claims
1. A single-wheel structure capable of bouncing and eccentric adjustment, characterized in that: The device includes a wheel body, an elastic element, an eccentric adjustment assembly for adjusting the position of the sliding door, and a pulley that can be located in the track groove. The eccentric adjustment assembly is rotatably connected to the wheel body, and the elastic element is disposed on the wheel body and the eccentric adjustment assembly. The pulley is fixed to the wheel body, and the wheel body rotates due to the elasticity of the elastic element, thereby making the pulley fit tightly against the groove wall of the track groove.
2. The single-wheel structure with bouncing and eccentric adjustment according to claim 1, characterized in that: The eccentric adjustment assembly includes an end cap, a locking wheel, an eccentric adjustment wheel, and a locking screw. The eccentric adjustment wheel has an eccentric shaft supporting the sliding door and a through hole 1 passing through the eccentric shaft. The locking wheel has a through hole 2, and the wheel body has a through hole 3. The locking screw passes through through holes 1, 2, and 3 and connects to the end cap to lock the locking wheel, the eccentric adjustment wheel, and the sliding door together. The wheel body is restricted between the end cap and the locking wheel and cannot come out.
3. The single-wheel structure capable of bouncing and eccentric adjustment according to claim 2, characterized in that: The end cap includes a cap rod and a limiting protrusion ring located on the cap rod. The cap rod has a connecting screw hole, and the locking screw cooperates with the connecting screw hole. The wheel body has a limiting hole, and the through hole is located at the bottom of the limiting hole. The limiting protrusion ring is located in the limiting hole and can abut against the bottom of the limiting hole.
4. The single-wheel structure with bouncing and eccentric adjustment according to claim 2, characterized in that: The elastic element is a torsion spring. The locking screw passes through the torsion spring, and the first torsion arm of the torsion spring is fixed to the locking wheel, while the second torsion arm of the torsion spring is fixed to the wheel body.
5. The single-wheel structure with bouncing and eccentric adjustment according to claim 4, characterized in that: The wheel body is provided with a wheel groove, and the torsion spring and the locking wheel are both located in the wheel groove.
6. The single-wheel structure with bouncing and eccentric adjustment according to claim 5, characterized in that: One side of the locking wheel is provided with a torsion spring fixing groove 1, and the bottom of the wheel groove is provided with a torsion spring fixing groove 2. One end of the torsion spring and the first torsion arm are located in the torsion spring fixing groove 1, and the other end of the torsion spring and the second torsion arm are located in the torsion spring fixing groove 2.
7. The single-wheel structure with bouncing and eccentric adjustment according to claim 5, characterized in that: The wheel groove is provided with a limiting protrusion one, and the locking wheel is provided with a limiting protrusion two on one side that can abut against the limiting protrusion one.
8. The single-wheel structure with bouncing and eccentric adjustment according to claim 5, characterized in that: It also includes a hook, the wheel body has a side hole that communicates with the wheel groove, the side of the locking wheel has a side groove, and the end of the hook can be inserted into the side groove from the side hole.
9. A single-wheel structure capable of bouncing and eccentric adjustment according to claim 2, characterized in that: The locking wheel is provided with a positioning rod, and the eccentric shaft is provided with a positioning hole, into which the positioning rod is inserted.
10. A single-wheel structure capable of bouncing and eccentric adjustment according to claim 2, characterized in that: The wheel body is provided with protrusions.