Low friction iron slider device for car guide rails
By introducing compression springs, elastic blocks, and roller assemblies into the iron slider device for automotive guide rails, the problems of increased friction and short service life are solved, resulting in a low-friction, long-life, and low-cost iron slider device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHANGJIAGANG QUANSHENG AUTOMOBILE ACCESSORY CO LTD
- Filing Date
- 2025-09-13
- Publication Date
- 2026-06-26
AI Technical Summary
Existing automotive guide rail iron slider devices suffer from increased friction due to manufacturing tolerances, resulting in reduced smoothness of operation, high production costs, and short service life.
A friction assembly consisting of a compression spring, an elastic block, a first roller, and a second roller is used to stabilize the position of the iron slider in the up-down and left-right directions through elastic force, thereby reducing the friction between the slider and the guide rail and lowering the manufacturing tolerance requirements.
It reduces the production cost of sliders and guide rails, extends their service life, reduces wear, and improves smooth operation.
Smart Images

Figure CN224414133U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive guide rail technology, specifically a low-friction iron slider device for automotive guide rails. Background Technology
[0002] The low-friction iron slider device for automotive guide rails is suitable for adjusting parts of automobiles such as front door windows, rear door windows, and car seats, so as to achieve the adjustment of windows or doors.
[0003] The guide rails and iron sliders in automobiles have tolerances during manufacturing. These tolerances increase the friction between the guide rails and iron sliders, reducing the smoothness of their operation. Existing iron slider devices for automobile guide rails have relatively simple structures, and the tolerances have a significant impact on the smoothness of the iron sliders' operation. The high tolerance requirements during the manufacturing of guide rails and iron sliders lead to high production costs. Furthermore, wear during the operation of guide rails and iron sliders further affects the smoothness of the iron sliders' operation, resulting in a shorter service life. Therefore, to address the above problems, a low-friction iron slider device for automobile guide rails is proposed. Utility Model Content
[0004] The purpose of this utility model is to provide a low-friction iron slider device for automotive guide rails, so as to solve the problems of high production cost and short service life of some existing iron slider devices for automotive guide rails.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A low-friction iron slider device for automotive guide rails includes a guide rail component, a slider component, a friction assembly, an extrusion component, and a roller assembly. The guide rail component has a slider component on its upper side, the slider component comprising an iron slider, and an internal upper receiving groove. Limiting grooves are provided on both the left and right sides of the receiving groove. The slider component has a friction assembly inside, the friction assembly including a mounting bracket located inside the receiving groove. Limiting plates that are slidably connected to the limiting grooves are fixedly connected to both the left and right sides of the mounting bracket. A sliding plate that fits against the upper side of the guide rail component is fixedly connected to the lower side of the mounting bracket. Limiting shafts are fixedly connected to the front and rear side walls of the mounting bracket. Two symmetrically distributed extrusion plates are slidably connected between the two limiting shafts. A set of compression springs is fixedly connected to the back sides of the two extrusion plates. The ends of the compression springs away from the extrusion plates are fixedly connected to the inner side wall of the mounting bracket. The friction assembly has an extrusion component inside, the extrusion component including an elastic block located inside the mounting bracket, and an air bladder inside the elastic block.
[0007] Preferably, the lower inner side of the iron slider is provided with two sets of evenly distributed first roller grooves, and the left and right sides of the iron slider are each provided with a set of evenly distributed second roller grooves. The roller assembly includes a set of first rollers located inside the first roller grooves. The first rollers are all rotatably connected to the iron slider. The first rollers are all located diagonally above the first rollers and inside the second roller grooves. The second rollers are all rotatably connected to the iron slider. The outer side of the second rollers is fixedly connected with an elastic sleeve.
[0008] Preferably, the uppermost end of each of the first rollers protrudes from the opening side of the first roller groove, and the uppermost end of the first roller contacts the guide rail. The end of the elastic sleeve away from the iron slider protrudes from the opening side of the second roller groove, and the end of the elastic sleeve away from the iron slider contacts the guide rail.
[0009] Preferably, the guide rail passes through the iron slider, both sides of the elastic block are in contact with the extrusion plate, the upper side of the elastic block is in contact with the iron slider, and the lower side of the elastic block is in contact with the sliding plate.
[0010] Preferably, the outer wall of the mounting bracket is in contact with the iron slider, the length and width of the sliding plate are equal to the length and width of the mounting bracket, and the compression springs in each group are evenly distributed.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] In this invention, by using a compression spring, an elastic block, a first roller, a second roller, and an elastic sleeve, the device can stabilize the iron slider relative to the guide rail in the vertical direction through the elastic force of the compression spring and the elastic block, and stabilize the iron slider relative to the guide rail in the horizontal direction through the elastic force of the elastic sleeve. The first roller and the second roller can reduce the friction between the slider and the guide rail, thereby reducing wear during operation. The device reduces the tolerance requirements for the slider and guide rail during manufacturing, significantly lowering the production cost. Furthermore, the device exhibits slower wear, less variation in the smoothness of the slider and guide rail's operation, and a longer service life. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a cross-sectional view of the overall structure of this utility model;
[0015] Figure 3 This is a cross-sectional view of the slider component of this utility model;
[0016] Figure 4 This is a cross-sectional view of the roller assembly installation structure of this utility model;
[0017] Figure 5 This is a first cross-sectional view of the friction assembly structure of this utility model;
[0018] Figure 6 This is a second cross-sectional view of the friction assembly structure of this utility model.
[0019] In the diagram: 1. Guide rail; 2. Slider; 21. Iron slider; 22. Receiving groove; 23. Limiting groove; 24. First roller groove; 25. Second roller groove; 3. Friction assembly; 31. Mounting bracket; 32. Limiting plate; 33. Sliding plate; 34. Limiting shaft; 35. Extrusion plate; 36. Compression spring; 4. Extrusion component; 41. Elastic block; 42. Airbag; 5. Roller assembly; 51. First roller; 52. Second roller; 53. Elastic sleeve. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.
[0022] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.
[0023] Please see Figure 1-6 This utility model provides a technical solution:
[0024] A low-friction iron slider device for automotive guide rails includes a guide rail component 1, a slider component 2, a friction assembly 3, an extrusion component 4, and a roller assembly 5. The slider component 2 is located on the upper side of the guide rail component 1. The slider component 2 includes an iron slider 21. A receiving groove 22 is provided on the upper side of the inner side of the iron slider 21. Limiting grooves 23 are provided on both the left and right sides of the receiving groove 22. The friction assembly 3 is located inside the slider component 2. The friction assembly 3 includes a mounting bracket 31 located inside the receiving groove 22. Limiting plates 32, which are slidably connected to the limiting grooves 23, are fixedly connected to both the left and right sides of the mounting bracket 31. A sliding plate 33 is fixedly connected to the lower side and fits against the upper side of the guide rail 1. Limiting shafts 34 are fixedly connected to the front and rear side walls of the mounting frame 31. Two symmetrically distributed extrusion plates 35 are slidably connected between the two limiting shafts 34. A set of compression springs 36 is fixedly connected to the back side of the two extrusion plates 35. The end of the compression springs 36 away from the extrusion plates 35 is fixedly connected to the inner side wall of the mounting frame 31. An extrusion component 4 is provided inside the friction assembly 3. The extrusion component 4 includes an elastic block 41 located inside the mounting frame 31. An air bladder 42 is provided inside the elastic block 41.
[0025] The lower inner side of the iron slider 21 is provided with two sets of evenly distributed first roller grooves 24. The left and right sides of the iron slider 21 are each provided with a set of evenly distributed second roller grooves 25. The roller assembly 5 includes a set of first rollers 51 located inside the first roller grooves 24, all of which are rotatably connected to the iron slider 21. Above each of the first rollers 51 are second rollers 52 located inside the second roller grooves 25, all of which are rotatably connected to the iron slider 21. Elastic sleeves 53 are fixedly connected to the outer sides of each second roller 52. The first rollers 51 inside the first roller grooves 24 contact the guide rail 1, and the elastic sleeves 53 inside the second roller grooves 25 contact the guide rail 1. The uppermost ends of the first rollers 51 protrude from the opening side of the first roller grooves 24. The guide rail 1 contacts the guide rail 1. The end of the elastic sleeve 53 away from the iron slider 21 protrudes from the opening side of the second roller groove 25. The end of the elastic sleeve 53 away from the iron slider 21 contacts the guide rail 1. The elastic force of the elastic sleeve 53 can keep the iron slider 21 stable relative to the guide rail 1 in the left and right directions. The guide rail 1 passes through the iron slider 21. The left and right sides of the elastic block 41 are in contact with the extrusion plate 35. The upper side of the elastic block 41 is in contact with the iron slider 21. The lower side of the elastic block 41 is in contact with the sliding plate 33. The outer wall of the mounting bracket 31 is in contact with the iron slider 21. The length and width of the sliding plate 33 are equal to the length and width of the mounting bracket 31, respectively. Each set of compression springs 36 is evenly distributed. The elastic force of the compression springs 36 and the elastic block 41 can keep the iron slider 21 stable relative to the guide rail 1 in the up and down directions.
[0026] Workflow: Before use, check if the device is intact. If it is intact, it can be used. The iron slider 21 is sleeved on the guide rail 1. The iron slider 21 has a large groove reserved for the guide rail 1 to pass through during design and production. The iron slider 21 and the guide rail 1 will not directly contact each other. The sliding plate 33 can be installed through the mounting bracket 31 set inside the receiving groove 22. The limiting plate 32 set inside the limiting groove 23 can prevent the mounting bracket 31 from dislodging, so that part of the mounting bracket 31 is always located in the receiving groove 22. The elastic block 41 is a rubber block. Two sets of compression springs 36 can bring the two extrusion plates 35, which are limited by the limiting shaft 34, closer together. The extrusion plates 35 can squeeze the elastic block 41. The elastic block 41 with airbag 42 can push the sliding plate 33 downward, so that the sliding plate 33 and the upper side of the guide rail 1 are in contact, so that the first roller 51 inside the first roller groove 24 contacts the guide rail 1. The elastic force of the 6 and the elastic block 41 can keep the iron slider 21 stable relative to the guide rail 1 in the vertical direction. The elastic sleeves 53 on the outer side of the second roller 52 are all rubber sleeves. The elastic sleeves 53 located inside the second roller groove 25 are in contact with the guide rail 1. The elastic force of the elastic sleeves 53 can keep the iron slider 21 stable relative to the guide rail 1 in the horizontal direction, so that the iron slider 21 can be stably sleeved on the guide rail 1. This device can keep the slider 2 stable relative to the guide rail 1. By reducing the friction between the slider 2 and the guide rail 1 through the rotatable first roller 51 and second roller 52, the wear of the slider 2 and the guide rail 1 during operation can be reduced. The tolerance requirements of the slider 2 and the guide rail 1 in the manufacturing process of this device are reduced, which greatly reduces the production cost of the slider 2 and the guide rail 1. Moreover, the wear of this device is slow, the smoothness of the operation of the slider 2 and the guide rail 1 changes little, and the service life is long.
[0027] Contents not described in detail in this specification are existing technologies known to those skilled in the art. Standard parts used in this invention can all be purchased commercially, and irregularly shaped parts can be custom-made according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are already mature technologies. The machinery, parts, and equipment all use conventional models from the prior art, and the circuit connections also employ conventional connection methods from the prior art, which will not be detailed here.
[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A low-friction iron slider device for automotive guide rails, comprising a guide rail component (1), a slider component (2), a friction assembly (3), an extrusion component (4), and a roller assembly (5), characterized in that: The upper side of the guide rail component (1) is provided with a slider component (2), which includes an iron slider (21). The upper side of the iron slider (21) is provided with a receiving groove (22). The left and right sides of the receiving groove (22) are provided with limiting grooves (23). The inside of the slider component (2) is provided with a friction assembly (3). The friction assembly (3) includes a mounting bracket (31) located inside the receiving groove (22). The left and right sides of the mounting bracket (31) are fixedly connected with limiting plates (32) that are slidably connected to the limiting grooves (23). The lower side of the mounting bracket (31) is fixedly connected with a sliding plate that fits against the upper side of the guide rail component (1). (33) The front and rear side walls of the mounting bracket (31) are fixedly connected to limit shafts (34). Two symmetrically distributed extrusion plates (35) are slidably connected between the two limit shafts (34). A set of compression springs (36) is fixedly connected to the back side of the two extrusion plates (35). The end of the compression spring (36) away from the extrusion plate (35) is fixedly connected to the inner side wall of the mounting bracket (31). The friction assembly (3) is provided with an extrusion component (4). The extrusion component (4) includes an elastic block (41) located inside the mounting bracket (31). An air bladder (42) is provided inside the elastic block (41).
2. The low-friction iron slider device for automotive guide rails according to claim 1, characterized in that: The lower inner side of the iron slider (21) is provided with two sets of evenly distributed first roller grooves (24). The left and right sides of the iron slider (21) are provided with a set of evenly distributed second roller grooves (25). The roller assembly (5) includes a set of first rollers (51) located inside the first roller grooves (24). The first rollers (51) are rotatably connected to the iron slider (21). The first rollers (51) are all provided with second rollers (52) located inside the second roller grooves (25) above the first rollers (51). The second rollers (52) are all rotatably connected to the iron slider (21). The outer side of the second rollers (52) is fixedly connected with elastic sleeves (53).
3. The low-friction iron slider device for automotive guide rails according to claim 2, characterized in that: The uppermost end of the first roller (51) protrudes from the opening side of the first roller groove (24), and the uppermost end of the first roller (51) contacts the guide rail (1). The end of the elastic sleeve (53) away from the iron slider (21) protrudes from the opening side of the second roller groove (25), and the end of the elastic sleeve (53) away from the iron slider (21) contacts the guide rail (1).
4. The low-friction iron slider device for automotive guide rails according to claim 2, characterized in that: The guide rail (1) passes through the iron slider (21), and the left and right sides of the elastic block (41) are in contact with the extrusion plate (35). The upper side of the elastic block (41) is in contact with the iron slider (21), and the lower side of the elastic block (41) is in contact with the sliding plate (33).
5. The low-friction iron slider device for automotive guide rails according to claim 2, characterized in that: The outer wall of the mounting bracket (31) is in contact with the iron slider (21), the length and width of the sliding plate (33) are equal to the length and width of the mounting bracket (31), and each set of compression springs (36) is evenly distributed.