Nylon pulley anti-falling structure and mounting method
By introducing a telescopic rod, a spring, a limit plate and a sound-absorbing cavity structure into the nylon pulley, the problems of pulley falling off and noise are solved, and the pulley's anti-falling and noise reduction effects are achieved.
Patent Information
- Application Number
- CN202510954869.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-11
- Publication Date
- 2025-10-14
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing nylon pulleys in household sliding doors are prone to falling off due to the enlarged gap between the guide rails, and generate noise during the sliding process, which affects the use effect.
An anti-slip structure including a telescopic rod, a spring, a limit plate, a scraper and a sound-absorbing chamber is designed. Foreign objects are cleared through the limit groove and scraper, and the spring buffer is combined to prevent the pulley from falling off, and the sound-absorbing chamber absorbs noise.
It effectively prevents the pulley from falling off, improves performance, reduces noise pollution, and enhances usage effects.
Smart Images
Figure CN120777281A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of nylon pulley, in particular to a nylon pulley anti-falling structure and installation method. BACKGROUND
[0002] Nylon pulley is widely used in production and life, and gradually replaces old metal pulley with its unique advantages. Nylon pulley can achieve the purpose of replacing steel with plastic and self-lubrication.
[0003] The existing nylon pulley is used as a roller at the bottom of a household sliding door, and moves on the guide rail to realize the movement of the sliding door. During the movement, due to the gap between the pulley and the guide rail, the gap will become larger when there is foreign matter on the guide rail, which will cause the pulley to easily separate from the guide rail and fall off, which not only causes inconvenience to the user, but also leads to poor use effect. In addition, the existing nylon pulley will produce a certain noise during sliding, and the pulley itself cannot reduce noise, which leads to low use performance. Therefore, a nylon pulley anti-falling structure is needed to solve the existing problems. SUMMARY
[0004] The purpose of the present application is to provide a nylon pulley anti-falling structure and installation method to solve the above problems.
[0005] The present application achieves the above-mentioned purposes through the following technical solutions: A nylon pulley anti-falling structure, comprising a pulley body, a bearing shaft is arranged in the pulley body, two groups of collars are symmetrically installed on the bearing shaft, two groups of telescopic rods are symmetrically arranged on the outer side wall of the collar, springs are arranged in the telescopic rods, limit plates are fixed on the movable parts of the telescopic rods, limit grooves are formed in the limit plates, and scrapers are fixed in the limit grooves.
[0006] Further, the bearing shaft is embedded in the pulley body, and the material of the pulley body is nylon.
[0007] By adopting the above technical solutions: the pulley body can move on the guide rail to realize the opening and closing of the sliding door.
[0008] Further, the collar is rotatably installed on the bearing shaft, the fixed part of the telescopic rod is connected with the collar through a screw, and the spring is fixed between the fixed part and the movable part of the telescopic rod.
[0009] By adopting the above technical scheme: when encountering relatively hard foreign matters, the telescopic rod combined with the spring can buffer the scraper, thereby ensuring the cleaning performance.
[0010] Further, the limiting plate is fixed on the movable part of the telescopic rod by screws, and the limiting groove is formed on the limiting plate.
[0011] By adopting the above technical scheme: the limiting groove on the limiting plate can further limit the pulley body, thereby avoiding the pulley body from falling off the guide rail.
[0012] Further, the pulley body is slidably connected with the guide rail.
[0013] By adopting the above technical scheme: the guide rail can guide the movement of the pulley body.
[0014] Further, the shape of the limiting groove matches the shape of the guide rail, and the specification of the limiting groove is greater than that of the guide rail.
[0015] By adopting the above technical scheme: the limiting groove can be designed according to the shape of the guide rail, thereby improving the applicability.
[0016] Further, the scraper is fixed in the limiting groove by screws, and the scraper has a small gap with the guide rail.
[0017] By adopting the above technical scheme: when the pulley body moves on the guide rail, the scraper can automatically scrape and clean the foreign matters on the guide rail.
[0018] Further, sound absorption cavities are symmetrically formed in the two side walls of the nylon body, sound absorption pads are bonded in the sound absorption cavities, sound transmission plates are fixed at the ends of the sound absorption cavities, and through holes are distributed on the sound transmission plates.
[0019] By adopting the above technical scheme: the noise generated during sliding is absorbed by the sound absorption pads in the sound absorption cavities through the sound transmission plates, the propagation of the noise can be reduced, the generated noise pollution can be avoided, and the use effect is improved.
[0020] Further, mounting plates are rotatably arranged at both ends of the bearing shaft, and a plurality of groups of mounting holes are circumferentially distributed on the mounting plates.
[0021] By adopting the above technical scheme: the mounting holes on the mounting plates facilitate the mounting and fixing of the pulley body.
[0022] The beneficial effects of the present application are: 1. In order to solve the existing nylon pulley in the use of the bottom end of the household sliding door roller, which relies on its movement on the guide rail to realize the movement of the sliding door, and in the moving process, due to the gap between the pulley and the guide rail, when there are foreign matters on the guide rail, the gap will become larger, and the pulley will easily separate from the guide rail and fall off, which not only causes inconvenience to the user, but also leads to poor use effect, the present application sets a group of cleaning mechanism composed of telescopic rod, spring, limiting plate, limiting groove and scraper, and in the sliding process of the pulley body on the guide rail, the limiting groove on the limiting plate can further limit the pulley body, and the scraper can automatically scrape and clean the foreign matters on the guide rail, and when encountering relatively hard foreign matters, the telescopic rod and spring can buffer the scraper to ensure its cleaning performance, thereby effectively preventing the pulley body from falling off from the guide rail due to foreign matters, effectively improving its anti-falling performance and use performance.
[0023] 2. In order to solve the existing nylon pulley in the sliding process, which will produce a certain noise, and the pulley itself cannot reduce noise, thereby leading to low use performance, the present application sets a group of sound absorbing mechanism composed of sound transmission plate, sound absorbing cavity and sound absorbing pad, the noise generated in the sliding process of the pulley body is absorbed by the sound absorbing pad in the sound absorbing cavity through the sound transmission plate, which can reduce the propagation of noise and avoid noise pollution, thereby improving its use effect. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1 is a front view of the nylon pulley anti-falling structure according to the present application; Figure 2 is a schematic view of the internal structure of the pulley body in the nylon pulley anti-falling structure according to the present application; Figure 3 is a schematic view of the structure of the limiting plate in the nylon pulley anti-falling structure according to the present application; Figure 4 is a schematic view of the internal structure of the telescopic rod in the nylon pulley anti-falling structure according to the present application.
[0025] The reference signs are explained as follows: 1, pulley body; 2, sound transmission plate; 3, guide rail; 4, mounting plate; 5, mounting hole; 6, collar; 7, telescopic rod; 8, limiting plate; 9, bearing shaft; 10, sound absorbing cavity; 11, sound absorbing pad; 12, limiting groove; 13, scraper; 14, spring. DETAILED DESCRIPTION
[0026] The present application will be further described below in conjunction with the drawings: As Figures 1-4As shown, a nylon pulley anti-off structure, including a pulley body 1, the pulley body 1 is provided with a bearing shaft 9, the bearing shaft 9 is symmetrically installed with two sets of collars 6, the outer side wall of the collar 6 is symmetrically provided with two sets of telescopic rods 7, the telescopic rod 7 is provided with a spring 14, the telescopic rod 7 can buffer the limiting plate 8, the movable part of the telescopic rod 7 is fixed with a limiting plate 8, the limiting plate 8 is provided with a limiting groove 12, the limiting groove 12 is fixed with a scraper 13, the foreign matter on the guide rail 3 can be automatically scraped and cleaned.
[0027] In this embodiment, the bearing shaft 9 is embedded in the pulley body 1, the material of the pulley body 1 is nylon, the pulley body 1 can move on the guide rail 3, realizing the opening and closing of the sliding door.
[0028] In this embodiment, the collar 6 is rotatably installed on the bearing shaft 9, the fixed part of the telescopic rod 7 is connected with the collar 6 through a screw, the spring 14 is fixed between the fixed part and the movable part of the telescopic rod 7, when encountering relatively hard foreign matter, the telescopic rod 7 combined with the spring 14 can buffer the scraper 13, ensuring its cleaning performance.
[0029] In this embodiment, the limiting plate 8 is fixed on the movable part of the telescopic rod 7 through a screw, the limiting groove 12 is formed on the limiting plate 8, the limiting groove 12 on the limiting plate 8 can further limit the pulley body 1, avoiding its falling off the guide rail 3.
[0030] In this embodiment, the pulley body 1 is provided below with a guide rail 3, the pulley body 1 is slidably connected with the guide rail 3, the guide rail 3 can guide the movement of the pulley body 1.
[0031] In this embodiment, the shape of the limiting groove 12 matches the shape of the guide rail 3, the size of the limiting groove 12 is larger than that of the guide rail 3, the limiting groove 12 can be designed according to the shape of the guide rail 3, thereby improving its applicability.
[0032] In this embodiment, the scraper 13 is fixed in the limiting groove 12 through a screw, the scraper 13 has a small gap with the guide rail 3, when the pulley body 1 moves on the guide rail 3, the scraper 13 can automatically scrape and clean the foreign matter on the guide rail 3.
[0033] In the embodiment, the sound absorption cavity 10 is symmetrically arranged on the two side walls of the nylon body 1, the sound absorption pad 11 is bonded in the sound absorption cavity 10, the sound transmission plate 2 is fixed at the end of the sound absorption cavity 10, the sound transmission plate 2 is provided with a plurality of through holes, the noise generated in the sliding process is absorbed by the sound absorption pad 11 in the sound absorption cavity 10 through the sound transmission plate 2, the propagation of the noise can be reduced, the generated noise pollution can be avoided, and the use effect is improved.
[0034] In the embodiment, the mounting plate 4 is rotatably arranged at the two ends of the bearing shaft 9, a plurality of groups of mounting holes 5 are circumferentially distributed on the mounting plate 4, and the mounting holes 5 on the mounting plate 4 facilitate mounting and fixing of the pulley body 1.
[0035] A mounting method of the nylon pulley anti-falling structure is as follows: first, the guide rail 3 is mounted and fixed, then the pulley body 1 is mounted at the bottom end of the sliding door through the mounting holes 5 on the mounting plate 4, and then the pulley body 1 is placed in the guide rail 3 to realize normal sliding of the sliding door, the limiting groove 12 on the limiting plate 8 can further limit the pulley body 1 during the sliding process of the pulley body 1 on the guide rail 3, the scraper 13 can automatically scrape and clean foreign matters on the guide rail 3, when encountering relatively hard foreign matters, the telescopic rod 7 combined with the spring 14 can buffer the scraper 13 to ensure the cleaning performance, thereby effectively preventing the pulley body 1 from falling off the guide rail 3 due to foreign matters, effectively improving the anti-falling performance, and the noise generated in the sliding process is absorbed by the sound absorption pad 11 in the sound absorption cavity 10 through the sound transmission plate 2, the propagation of the noise can be reduced, the generated noise pollution can be avoided, and the use effect is improved.
[0036] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.
Claims
1. A nylon pulley anti-slip structure, characterized by: The invention comprises a pulley body (1), wherein a bearing shaft (9) is arranged in the pulley body (1), two groups of collars (6) are symmetrically mounted on the bearing shaft (9), two groups of telescopic rods (7) are symmetrically arranged on the outer wall of the collars (6), the telescopic rods (7) have built-in springs (14), a limiting plate (8) is fixed on the movable part of the telescopic rod (7), a limiting groove (12) is provided on the limiting plate (8), and a scraper (13) is fixed in the limiting groove (12).
2. A nylon pulley anti-slip structure according to claim 1, characterized in that: The bearing shaft (9) is embedded in the pulley body (1), and the pulley body (1) is made of nylon.
3. The nylon pulley anti-slip structure according to claim 1, characterized in that: The collar (6) is rotatably mounted on the bearing shaft (9), the fixed portion of the telescopic rod (7) is connected to the collar (6) via screws, and the spring (14) is fixed between the fixed portion and the movable portion of the telescopic rod (7).
4. The nylon pulley anti-slip structure according to claim 1, characterized in that: The limiting plate (8) is fixed to the movable portion of the telescopic rod (7) by means of screws, and the limiting groove (12) is formed on the limiting plate (8).
5. The nylon pulley anti-slip structure according to claim 1, characterized in that: A guide rail (3) is provided below the pulley body (1), and the pulley body (1) is slidably connected to the guide rail (3).
6. The nylon pulley anti-slip structure according to claim 5, characterized in that: The shape of the limiting groove (12) matches the shape of the guide rail (3), and the specifications of the limiting groove (12) are larger than those of the guide rail (3).
7. The nylon pulley anti-slip structure according to claim 6, characterized in that: The scraper (13) is fixed in the limiting groove (12) by screws, and there is a small gap between the scraper (13) and the guide rail (3).
8. The nylon pulley anti-slip structure according to claim 1, characterized in that: Sound-absorbing cavities (10) are symmetrically formed on both side walls of the nylon body (1), a sound-absorbing pad (11) is bonded inside the sound-absorbing cavity (10), and a sound-transmitting plate (2) is fixed at the end of the sound-absorbing cavity (10), and the sound-transmitting plate (2) is covered with through holes.
9. The nylon pulley anti-slip structure according to claim 1, characterized in that: Mounting plates (4) are rotatably provided at both ends of the bearing shaft (9), and a plurality of groups of mounting holes (5) are circumferentially distributed on the mounting plates (4).
10. A method for installing a nylon pulley anti-slip structure, applied to a nylon pulley anti-slip structure according to any one of claims 1 to 9, characterized in that: First, the guide rail (3) is installed and fixed, and then the pulley body (1) is installed on the bottom end of the sliding door through the installation hole (5) on the installation plate (4), and then the pulley body (1) is placed in the guide rail (3) to realize the normal sliding of the sliding door. During the sliding of the pulley body (1) on the guide rail (3), the limiting groove (12) on the limiting plate (8) can further limit the pulley body (1), and at the same time, the scraper (13) can remove foreign matter on the guide rail (3). Automatic scraping and cleaning, and when encountering relatively hard foreign matter, the telescopic rod (7) combined with the spring (14) can buffer the scraper (13), ensuring its cleaning performance, thereby effectively preventing the pulley body (1) from falling off from the guide rail (3) due to foreign matter, effectively improving its anti-falling performance, and the noise generated during the sliding process is absorbed by the sound-absorbing pad (11) in the sound-absorbing cavity (10) through the sound-transmitting plate (2), which can reduce the spread of noise, avoid the noise pollution, and improve its use effect.