Pulley with pulley ring

By designing a pulley with a pulley ring and using a combined support structure of sliding beads and side pulleys, the problem of sliding difficulty and abnormal noise of the sliding door pulley after long-term use is solved, and the smooth operation and stability of the sliding door are achieved.

CN223343870UActive Publication Date: 2025-09-16ZHEJIANG LUXIN DOOR OPERATION EQUIP CO LTD
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Patent Information

Application Number
CN202422237930.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-12
Publication Date
2025-09-16
Estimated Expiration
2034-09-12

AI Technical Summary

Technical Problem

Existing sliding door pulleys are prone to sliding difficulties, abnormal noises and other adverse user experiences after long-term use.

Method used

A pulley with a pulley ring is designed, including a pulley body, a pulley ring assembly, a side pulley assembly and a flexible wheel pad. The combined support structure of the sliding ball and the side pulley is used to increase friction and stability, reduce abnormal noise, and prevent lateral movement of the pulley.

Benefits of technology

The user experience of the sliding door is improved, the difficulty and abnormal noise of the pulley rotation are avoided, and the stability and service life of the sliding door are enhanced.

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Abstract

The utility model relates to the field of pulleys, and discloses a pulley with a pulley ring, which comprises a pulley body and a sliding rail arranged on the outer side of the pulley body, the pulley body is provided with a pulley ring component, side pulley components are arranged on two sides of the pulley ring component, and a sliding door is arranged above the side pulley components. The novel center shaft drives the pulley body to roll in the track groove, the flexible wheel pad on the outer side of the pulley body can increase the friction force between the pulley body and the track groove and avoid slipping, meanwhile, due to the soft characteristic of the flexible wheel pad, abnormal sound generated by rolling is reduced, the use experience of the sliding door is improved, and during sliding, the stabilizing plate at the bottom of the sliding door slides in the stabilizing groove, so that the stability of the sliding door is improved. The sliding door can be prevented from shaking in the sliding process, and the stable protection effect is achieved; when the novel pulley body rolls, the pulley body and the center shaft are supported and combined through the sliding balls embedded in the pulley ring, the combination is firm, lateral movement of the pulley body is avoided, and the pulley body rotates more smoothly through the sliding balls.
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Description

Technical Field

[0001] The utility model relates to the field of pulleys, in particular to a pulley with a pulley ring. Background Art

[0002] In recent years, sliding doors have become increasingly popular due to their convenience, portability, and space-saving advantages compared to traditional doors and windows. However, many people, despite using sliding doors daily, may not realize that the most important component of a sliding door isn't the door itself, but the pulleys at its base. These pulleys bear the weight of the entire sliding door and are crucial for its operation. For a sliding door to operate smoothly and smoothly, they must be in good working condition. Therefore, the quality of the pulleys directly impacts the quality and lifespan of the door. Therefore, when choosing a sliding door, consumers should pay close attention to the quality of the pulleys. There are two main types of sliding doors: closet doors and partition doors. The pulleys used in these two types differ in design, but they also share commonalities. A complete pulley consists of two pulleys, upper and lower, and a load-bearing pulley. The upper pulley for a closet door consists of a fixed pulley and two spring pulleys, secured to a steel frame by a main plastic component. These pulleys primarily provide balance and guidance. The lower pulley, comprised of a steel frame sleeve, a main plastic frame belt, a bearing-mounted load-bearing pulley, an anti-jump latch, and an adjustment screw for height adjustment, is the load-bearing portion of the pulley. The upper pulley for a partition door is comprised of two sub-pulleys and a support frame. The lower pulley typically consists of a wheel with a bearing, connected to a fixed frame, an adjustment screw, and a spring.

[0003] The pulley of the existing sliding door has a relatively simple structure at the rotating connection, which may cause sliding difficulties and abnormal noise after long-term use, which is a bad user experience.

[0004] For this reason, need a kind of pulley with pulley ring to solve this problem. Utility Model Content

[0005] The purpose of the utility model is to provide a pulley with a pulley ring, aiming to solve the problems raised in the background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A pulley with a pulley ring comprises a pulley body and a slide rail arranged outside the pulley body, the pulley body is provided with a pulley ring assembly, side pulley assemblies are provided on both sides of the pulley ring assembly, and a sliding door is provided above the side pulley assembly.

[0008] Furthermore, a flexible wheel pad is provided on the outer side of the pulley body, the pulley body is provided with a pulley ring, the inner side of the pulley ring is provided with a wheel groove, the slide rail is provided with a plurality of track grooves, and a stabilizing groove is provided on one side of the track groove.

[0009] Furthermore, the pulley ring assembly includes a central shaft, the central shaft is engaged with the pulley ring, the central shaft is provided with a slide groove, and a sliding ball is provided between the slide groove and the wheel groove.

[0010] Furthermore, side wheel grooves are provided at both ends of the central shaft, side wheel axles are engaged in the side wheel grooves, and side pulleys are installed on the side wheel axles.

[0011] Furthermore, a plurality of support plates are provided at the bottom end of the sliding door, the support plates are connected to one side of the central axis, and a stabilizing plate is provided on one side of the support plates.

[0012] Furthermore, the stabilizing groove is engaged with the stabilizing plate, and sliding grooves are provided on both sides of the track groove, and the sliding grooves are engaged with the side pulleys.

[0013] Beneficial effects: The new center shaft drives the pulley body to roll in the track groove. The flexible wheel pads on the outside of the pulley body can increase the friction between it and the track groove to avoid slipping. At the same time, its soft characteristics reduce the abnormal noise caused by rolling, and improve the use experience of the sliding door. When sliding, the stabilizing plate at the bottom of the sliding door slides in the stabilizing groove to avoid the sliding door from shaking during the sliding process, which has a stable protection effect. When the new pulley body rolls, it is supported and combined with the center shaft through the sliding beads embedded in the pulley ring. The combination is relatively firm and there will be no lateral shift of the pulley body. The sliding beads make the pulley body rotate more smoothly, and the problem of rust on ordinary sliding doors after long-term use, which makes it difficult to rotate, will not occur. The side pulleys on both sides of the center shaft enable the center shaft to play a role of limiting support on it while not contacting the slide rail, assisting sliding, further avoiding abnormal noise caused by scratches, and improving the use experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely illustrative, and those skilled in the art can derive other implementation drawings based on the provided drawings without inventive effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is the structural diagram of the slide rail of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the pulley ring assembly of the utility model;

[0018] Figure 4 This is a schematic diagram of the pulley body structure of the utility model;

[0019] Figure 5 This is a schematic structural diagram of the side pulley assembly of the utility model.

[0020] Legend:

[0021] 1. Pulley body; 2. Slide rail; 3. Pulley ring assembly; 4. Side pulley assembly; 5. Sliding door; 11. Flexible wheel pad; 12. Pulley ring; 13. Wheel groove; 21. Track groove; 22. Stabilizing groove; 31. Center axis; 32. Slide groove; 33. Slide ball; 41. Side wheel groove; 42. Side wheel shaft; 43. Side pulley; 51. Support plate; 52. Stabilizing plate; 211. Sliding groove. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is apparent that the embodiments described are only a portion of the embodiments of the utility model, not all of them. The embodiments and features in the embodiments of this application may be combined with each other unless there is a conflict. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the utility model without creative effort are also within the scope of protection of the utility model.

[0023] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0024] In addition, "multiple" means more than two. Furthermore, the technical solutions of the various embodiments may be combined with each other, but this must be based on the fact that a person of ordinary skill in the art can use them. If the combination of technical solutions is mutually contradictory or cannot be implemented, it shall be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0025] Please refer to the instruction manual Figures 1-4 A pulley with a pulley ring includes a pulley body 1 and a slide rail 2 arranged on the outside of the pulley body 1. The pulley body 1 is provided with a pulley ring assembly 3, and side pulley assemblies 4 are provided on both sides of the pulley ring assembly 3. A sliding door 5 is provided above the side pulley assembly 4.

[0026] Furthermore, a flexible wheel pad 11 is provided on the outside of the pulley body 1, the pulley body 1 is provided with a pulley ring 12, the inner side of the pulley ring 12 is provided with a wheel groove 13, the slide rail 2 is provided with a plurality of track grooves 21, and a stabilizing groove 22 is provided on one side of the track groove 21. The flexible wheel pad 11 on the outside of the pulley body 1 can increase the friction between it and the track groove 21 to avoid slipping. At the same time, its soft characteristics reduce the abnormal noise caused by rolling.

[0027] Furthermore, the pulley ring assembly 3 includes a central axis 31, the central axis 31 is engaged with the pulley ring 12, the central axis 31 is provided with a slide groove 32, and a sliding ball 33 is provided between the slide groove 32 and the wheel groove 13. When the sliding door 5 slides on the slide rail 2, the pulley body 1 is supported and combined with the central axis 31 through the sliding ball 33 engaged with the pulley ring 12 when rolling. The combination is relatively firm and there will be no lateral shift of the pulley body 1. The sliding ball 33 makes the pulley body 1 rotate more smoothly, and the problem of rusting and difficulty in rotation caused by long-term use of ordinary sliding doors will not occur.

[0028] Furthermore, side wheel grooves 41 are provided at both ends of the central shaft 31, and the side wheel grooves 41 are engaged with side wheel shafts 42. The side wheel shafts 42 are equipped with side pulleys 43. The side pulleys 43 on both sides of the central shaft 31 enable the central shaft 31 to play a role of limiting support on the slide rail 2 while not contacting it, thereby assisting sliding and further avoiding abnormal noise caused by scratches.

[0029] Furthermore, a plurality of support plates 51 are provided at the bottom end of the sliding door 5, and the support plates 51 are connected to one side of the central axis 31. A stabilizing plate 52 is provided on one side of the support plate 51. The pulley body 1 supports the sliding door 5 by using the support plates 51. The support plates 51 act on both ends of the central axis 31, and the central axis 31 drives the pulley body 1 to roll in the track groove 21.

[0030] Furthermore, the stabilizing groove 22 is engaged with the stabilizing plate 52, and sliding grooves 211 are provided on both sides of the track groove 21. The sliding grooves 211 are engaged with the side pulleys 43. The stabilizing plate 52 at the bottom of the sliding door 5 slides in the stabilizing groove 22, which can prevent the sliding door 5 from shaking during the sliding process and has a stabilizing and protective effect.

[0031] First, when pushing the sliding door 5 to slide on the slide rail 2, the pulley body 1 uses the support plate 51 to support the sliding door 5. The support plate 51 acts on both ends of the central shaft 31, and the central shaft 31 drives the pulley body 1 to roll in the track groove 21. The flexible wheel pad 11 on the outside of the pulley body 1 can increase the friction between it and the track groove 21 to avoid slipping. At the same time, its soft characteristics reduce the abnormal noise caused by rolling, thereby improving the user experience of the sliding door. Moreover, when sliding, the stabilizing plate 52 at the bottom of the sliding door 5 slides in the stabilizing groove 22, which can prevent the sliding door 5 from shaking during the sliding process. The side pulleys 43 on both sides of the central axis 31 support the central axis 31 while the side pulleys 43 on both sides of the central axis 31 support the central axis 31 without contacting the slide rail 2, thereby assisting in sliding, further avoiding abnormal noise caused by scratches, and improving the user experience.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0034] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A pulley with a pulley ring, comprising a pulley body (1) and a slide rail (2) arranged outside the pulley body (1), characterized in that: The pulley body (1) is provided with a pulley ring assembly (3), side pulley assemblies (4) are provided on both sides of the pulley ring assembly (3), a sliding door (5) is provided above the side pulley assembly (4), the pulley ring assembly (3) includes a central axis (31), the central axis (31) is engaged with the pulley ring (12), the central axis (31) is provided with a sliding groove (32), a sliding ball (33) is provided between the sliding groove (32) and the wheel groove (13), and a plurality of support plates (51) are provided at the bottom end of the sliding door (5), the support plates (51) are connected to one side of the central axis (31), and a stabilizing plate (52) is provided on one side of the support plates (51).

2. A pulley with a pulley ring according to claim 1, characterized in that: A flexible wheel pad (11) is provided on the outer side of the pulley body (1), a pulley ring (12) is provided on the pulley body (1), a wheel groove (13) is provided on the inner side of the pulley ring (12), and a plurality of track grooves (21) are provided on one side of the track groove (21).

3. The pulley with a pulley ring according to claim 1, characterized in that: Side wheel grooves (41) are provided at both ends of the central shaft (31), the side wheel grooves (41) are engaged with side wheel shafts (42), and the side wheel shafts (42) are installed with side pulleys (43).

4. The pulley with a pulley ring according to claim 2, characterized in that: The stabilizing groove (22) is engaged with the stabilizing plate (52), and sliding grooves (211) are provided on both sides of the track groove (21), and the sliding grooves (211) are engaged with the side pulleys (43).