A high-sealing linear guide rail slider applied to a linear transmission module

By introducing a sealing assembly consisting of a limit ring, annular groove, and locking unit into the linear guide slider, the problem of poor sealing performance of traditional linear guide sliders is solved, achieving high sealing performance and convenient oiling.

CN122280956APending Publication Date: 2026-06-26SHENZHEN JINWANGDA ELECTRICAL & MECHANICAL CO LTD
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Patent Information

Application Number
CN202610420173.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-01
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Traditional linear guide sliders have poor sealing performance. O-rings are prone to displacement and dimensional deviations, resulting in poor sealing. Furthermore, assembly is difficult and oil leakage occurs frequently.

Method used

A sealing assembly including a limiting ring, annular groove, telescopic spring and locking unit is designed. The limiting ring is connected to the slider mounting seat, the annular groove forms a double sealing cavity, and the locking unit ensures the stability of the oil injection pipe and realizes automatic sealing.

Benefits of technology

It improves the assembly stability and sealing effect of the slider and slider mounting base, avoids oil leakage, simplifies the oil injection process, and enhances the stability and sealing performance of the sealing components.

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Abstract

This invention relates to the field of linear guide slider technology, and more particularly to a high-sealing linear guide slider used in linear transmission modules. It includes a slider and a linear guide for adapting to the slider. The slider is mounted on the upper end of the linear guide, and slider mounting seats are mounted on both sides of the slider. A sealing component is mounted on the inner side of one end of each slider mounting seat, and a telescopic spring is mounted on one end of the sealing component. A sealing ring is installed between the slider and the slider mounting seat. The sealing ring includes a limiting ring for connecting with the slider. An annular gasket is fixedly connected to one end of the limiting ring, and an annular groove with a triangular cross-section on one side is formed at the end of the annular gasket away from the limiting ring. In this invention, the annular groove forms a double-sealed cavity after compression, preventing the height difference between the slider and the slider mounting seat from decreasing. When the rubber ring is compressed, the annular groove can deform sufficiently, avoiding deformation of the parts due to compression.
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Description

Technical Field

[0001] This invention relates to a high-sealing linear guide slider used in linear transmission modules, belonging to the technical field of sealed linear guide sliders. Background Technology

[0002] Traditional guide rail slider oiling involves manual oiling using an oiling nozzle, or adding a hole to the slider mounting base and the slider to inject oil into the slider through the pipe of the slider mounting base. There will be a gap between the slider mounting base and the slider, causing oil leakage. The traditional method is to use an O-ring for sealing. The following problems exist in the process of sealing with O-rings: The O-ring cannot be positioned correctly, causing positional displacement during assembly and affecting the sealing effect; Customers use different brands and models of sliders, which causes slight deviations in the slider dimensions, requiring frequent replacement of the sealing ring size according to requirements; The wire diameter and shape of O-rings are fixed. If they are pressed too tightly, the parts will deform and assembly and debugging will be difficult. If they are pressed too loosely, the sealing performance will be poor and oil leakage will occur. Therefore, there is an urgent need to improve a high-sealing linear guide slider used in linear transmission modules to solve the above problems. Summary of the Invention

[0003] The purpose of this invention is to provide a high-sealing linear guide slider for use in linear transmission modules, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A high-sealing linear guide slider for use in a linear drive module includes a slider and a linear guide for adapting to the slider. The slider is mounted on the upper end of the linear guide, and slider mounting seats are mounted on both sides of the slider. A sealing component is mounted on the inner side of one end of the slider mounting seat, and a telescopic spring is mounted on one end of the sealing component. A sealing ring is installed between the slider and the slider mounting seat. The sealing ring includes a limiting ring for connecting with the slider. An annular gasket is fixedly connected to one end of the limiting ring, and an annular groove with a vertical cross-section of a triangle on one side is opened on the end of the annular gasket away from the limiting ring.

[0005] Preferably, the slider mounting base includes a base body, the base body has a mounting hole inside, and the bottom end of the mounting hole has guide holes with an L-shaped vertical cross section on both sides. The upper and lower ends of the mounting hole are fixedly connected to arc-shaped limiting blocks, and the base body is rotatably connected to both sides.

[0006] Preferably, the mounting hole and the guide hole are connected, the bottom end of the connecting bolt passes through the seat body and is spirally connected to the slider, the bottom end of the mounting hole is fixedly connected to the telescopic spring, and the telescopic spring is disposed between the limit blocks.

[0007] Preferably, the sealing assembly includes a sealing plate, one end of which is fixedly connected to a limiting plate, and the other end of which is fixedly connected to a short pipe. The sealing plate has a plurality of through holes that are equidistantly spaced in a ring shape inside, a sealing ring is installed on the outside of the sealing plate, and a locking unit that is distributed in a ring shape is installed on the side of the sealing plate where the short pipe is installed.

[0008] Preferably, there are three locking units, the short tube is connected to the multiple through holes, and there are two sealing rings, which are disposed on both sides of the through holes.

[0009] Preferably, the vertical projection of the mounting hole is T-shaped, the front end of the mounting hole is adapted to the sealing plate, the rear end of the mounting hole is adapted to the limiting plate, the end of the limiting plate away from the sealing plate is fixedly connected to the telescopic spring, and the lateral projections of the limiting plate and the limiting block overlap.

[0010] Preferably, the locking unit includes a fixed base, a rotating hole on one side of the fixed base, a vertical plate fixedly connected to one end of the fixed base, a rubber sleeve fixedly connected inside the rotating hole of the fixed base, a plurality of buffer holes equidistantly arranged in a ring shape inside the rubber sleeve, a rotating shaft installed inside the rubber sleeve, and a bent rod fixedly connected to the outer side of the middle of the rotating shaft.

[0011] Preferably, the fixing seat is fixedly connected to the sealing plate, the vertical plate is disposed on one side of the bent rod, the vertical projection of the bent rod is L-shaped, and both ends of the bent rod are protruding.

[0012] This invention has at least the following beneficial effects: 1. In this invention, the limiting ring inside the sealing ring is first connected to the oil passage hole opened in the slider mounting seat, so that it is not easy to fall off during the assembly process and no displacement occurs during the installation process. At the same time, the ring groove is compressed to form a double-sealed cavity, which is used to prevent the height difference between the slider and the slider mounting seat from becoming smaller. When the rubber ring is compressed, the ring groove can be fully deformed to avoid the deformation of the parts caused by squeezing, effectively improving the assembly stability and the sealing effect after operation. 2. In this invention, the sealing component allows the oil inlet to be opened during the oil filling process by inserting the external oil filling pipe, and automatically resets and seals after oil filling, which is convenient. Furthermore, the locking unit can be used to lock the external oil filling pipe and the sealing plate during the oil filling process, improving the stability of the external oil filling pipe and the sealing plate. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Enlarged structural diagram at point A in the middle; Figure 3 This is a schematic diagram of the slider mounting base structure of the present invention; Figure 4 For the present invention Figure 3 Enlarged structural diagram at point B; Figure 5 This is a schematic diagram of the base structure of the present invention; Figure 6 This is a schematic diagram of the sealing assembly structure of the present invention; Figure 7 This is a cross-sectional view of the sealing plate of the present invention; Figure 8 This is a schematic diagram of the sealing ring structure of the present invention; Figure 9 This is a schematic diagram of the locking unit structure of the present invention; Figure 10 For the present invention Figure 9 Enlarged structural diagram at point C.

[0014] In the diagram, 1 represents a linear guide rail; 2. Slider mounting base; 21. Base body; 22. Mounting hole; 23. Connecting bolt; 24. Guide hole; 25. Limiting block; 3. Sealing ring; 31. Limiting ring; 32. Annular gasket; 33. Annular groove; 4. Slider; 5. Telescopic spring; 6. Sealing assembly; 61. Sealing plate; 62. Limiting plate; 63. Through hole; 64. Sealing ring; 65. Locking unit; 651. Fixing base; 652. Rotary hole; 653. Vertical plate; 654. Bent rod; 655. Rubber sleeve; 656. Buffer hole; 657. Rotary shaft; 66. Short pipe. Detailed Implementation

[0015] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0016] like Figures 1-10As shown, this embodiment provides a high-sealing linear guide slider for use in a linear transmission module, including a slider 4 and a linear guide 1 for matching the slider 4. The slider 4 is mounted on the upper end of the linear guide 1, and slider mounting seats 2 are mounted on both sides of the slider 4. A sealing component 6 is mounted on the inner side of the middle of one end of the slider mounting seat 2, and a telescopic spring 5 is mounted on one end of the sealing component 6. A sealing ring 3 is installed between the slider 4 and the slider mounting seat 2. The sealing ring 3 includes a limiting ring 31 for connecting with the slider 4. An annular pad 32 is fixedly connected to one end of the limiting ring 31, and an annular groove 33 with a vertical cross-section of a triangle on one side is opened on the end of the annular pad 32 away from the limiting ring 31.

[0017] As a further optimization of the present invention, the slider mounting base 2 includes a base body 21, the base body 21 has a mounting hole 22 inside, and the mounting hole 22 has a guide hole 24 with an L-shaped vertical cross section on both sides of the bottom end of the mounting hole 22. The upper and lower ends of the mounting hole 22 are fixedly connected to an arc-shaped limiting block 25. The base body 21 is rotatably connected to both sides. With the above configuration, it can be stably connected to the slider 4, and the sealing component 6 can be stably installed at the same time. As a further optimization of the present invention, the mounting hole 22 and the guide hole 24 are connected, the bottom end of the connecting bolt 23 passes through the seat 21 and is spirally connected to the slider 4, the bottom end of the mounting hole 22 is fixedly connected to the telescopic spring 5, and the telescopic spring 5 is arranged between the limit blocks 25. With the above arrangement, it is convenient to inject oil into the slider 4 through the sealing component 6. As a further optimization of the present invention, the sealing assembly 6 includes a sealing plate 61, one end of which is fixedly connected to a limiting plate 62, and the other end of which is fixedly connected to a short pipe 66. The sealing plate 61 has a plurality of through holes 63 arranged in a ring at equal intervals inside, a sealing ring 64 is installed on the outside of the sealing plate 61, and a locking unit 65 arranged in a ring is installed on the side of the sealing plate 61 where the short pipe 66 is installed. With the above configuration, it can be used as a lubrication port for the slider lubricating oil and automatically seal it at the same time. As a further optimization of the present invention, the locking unit 65 is provided in three parts, the short pipe 66 is connected to the multiple through holes 63, and the sealing ring 64 is provided in two parts. The two sealing rings 64 are set on both sides of the through holes 63 to lock the external oil injection pipe and further improve the stability during the oil injection process. As a further optimization of the present invention, the vertical projection of the mounting hole 22 is T-shaped, the front end of the mounting hole 22 is adapted to the sealing plate 61, the rear end of the mounting hole 22 is adapted to the limiting plate 62, the end of the limiting plate 62 away from the sealing plate 61 is fixedly connected to the telescopic spring 5, and the lateral projections of the limiting plate 62 and the limiting block 25 overlap. Through the above settings, the stability of the sealing assembly 6 during use can be guaranteed. As a further optimization of the present invention, the locking unit 65 includes a fixed base 651, a rotating hole 652 is provided on one side of the fixed base 651, a vertical plate 653 is fixedly connected to one end of the fixed base 651, a rubber sleeve 655 is fixedly connected in the rotating hole 652 inside the fixed base 651, a plurality of buffer holes 656 are provided in a ring shape at equal intervals inside the rubber sleeve 655, a rotating shaft 657 is installed inside the rubber sleeve 655, a bent rod 654 is fixedly connected to the outer side of the middle of the rotating shaft 657, the fixed base 651 is fixedly connected to the sealing plate 61, the vertical plate 653 is provided on one side of the bent rod 654, the vertical projection of the bent rod 654 is L-shaped, and both ends of the bent rod 654 are protruding. Through the above configuration, the stability of locking the external oil injection pipeline can be further improved. like Figures 1-10 As shown in the figure, the principle of a high-sealing linear guide slider applied in a linear transmission module provided in this embodiment is as follows: Step 1: Connect and install slider mounting base 2 and slider 4: During installation, the connecting bolts 23 are used to lock and fix the device, and the limiting ring 31 inside the sealing ring 3 is first connected to the oil passage hole opened in the slider mounting seat 2, so that it is not easy to fall off during assembly and no displacement occurs during installation. After installation, the annular groove 33 forms a double-sealed cavity after compression, which is used to prevent the height difference between the slider and the slider mounting seat from becoming smaller. When compressing the rubber ring, the annular groove 33 can deform fully to avoid extrusion and deformation of the parts. Step 2: Subsequent oil filling: In the subsequent process of injecting oil into the slider 4 through the slider mounting seat 2, the external oil injection pipe is first inserted into the mounting hole 22, and its top end is pressed against one end of the bent rod 654 (at this time, the external oil injection pipe is set outside the short pipe 66), and is continuously inserted. When the through hole 63 moves to the rear end of the mounting hole 22, the limiting plate 62 contacts the limiting block 25 and stops the insertion. During this process, the bent rod 654 rotates, and one end of the bent rod 654 is pressed against the outer wall of the external oil injection pipe, thus locking it. Next, the lubricating oil inside the external oil injection pipe enters the through hole 63 through the short pipe 66, then enters the guide hole 24 through the through hole 63, and finally enters the slider 4 through the guide hole 24 and the sealing ring 3 to complete the oil injection. After the oil injection is completed, the external oil injection pipe is pulled out, and the telescopic spring 5 pushes the sealing assembly 6 to reset, thus completing the sealing.

[0018] Certain terms are used in the specification and claims to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0019] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.

[0020] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A high-sealing linear guide slider for use in a linear transmission module, comprising a slider (4) and a linear guide (1) adapted to the slider (4), characterized in that: The linear guide (1) is equipped with a slider (4) at its upper end. Slider mounting seats (2) are installed on both sides of the slider (4). A sealing component (6) is installed on the inner side of one end of the slider mounting seat (2). A telescopic spring (5) is installed on one end of the sealing component (6). A sealing ring (3) is installed between the slider (4) and the slider mounting seat (2). The sealing ring (3) includes a limiting ring (31) for connecting with the slider (4). One end of the limiting ring (31) is fixedly connected to an annular pad (32). The annular pad (32) has an annular groove (33) with a vertical cross section that is triangular on one side at the end away from the limiting ring (31).

2. The high-sealing linear guide slider applied in a linear transmission module according to claim 1, characterized in that: The slider mounting base (2) includes a base body (21), an mounting hole (22) is provided inside the base body (21), and guide holes (24) with an L-shaped vertical cross section are provided on both sides of the bottom end of the mounting hole (22). Arc-shaped limit blocks (25) are fixedly connected to the upper and lower ends of the mounting hole (22), and connecting bolts (23) are rotatably connected to both sides of the base body (21).

3. The high-sealing linear guide slider applied in a linear transmission module according to claim 2, characterized in that: The mounting hole (22) and the guide hole (24) are connected. The bottom end of the connecting bolt (23) passes through the seat (21) and is spirally connected to the slider (4). The bottom end of the mounting hole (22) is fixedly connected to the telescopic spring (5). The telescopic spring (5) is set between the limit blocks (25).

4. A high-sealing linear guide slider applied in a linear transmission module according to claim 1, characterized in that: The sealing assembly (6) includes a sealing plate (61), one end of which is fixedly connected to a limiting plate (62), and the other end of which is fixedly connected to a short pipe (66). The sealing plate (61) has a plurality of through holes (63) arranged in an annular pattern at equal intervals inside. A sealing ring (64) is installed on the outside of the sealing plate (61). Locking units (65) arranged in an annular pattern are installed on the side of the sealing plate (61) where the short pipe (66) is installed.

5. A high-sealing linear guide slider applied in a linear transmission module according to claim 4, characterized in that: The locking unit (65) is provided in three parts. The short tube (66) is connected to the multiple through holes (63). The sealing ring (64) is provided in two parts, and the two sealing rings (64) are provided on both sides of the through holes (63).

6. A high-sealing linear guide slider applied in a linear transmission module according to claim 2, characterized in that: The vertical projection of the mounting hole (22) is T-shaped. The front end of the mounting hole (22) is adapted to the sealing plate (61), and the rear end of the mounting hole (22) is adapted to the limiting plate (62). The end of the limiting plate (62) away from the sealing plate (61) is fixedly connected to the telescopic spring (5). The horizontal projections of the limiting plate (62) and the limiting block (25) overlap.

7. A high-sealing linear guide slider applied in a linear transmission module according to claim 4, characterized in that: The locking unit (65) includes a fixed base (651), a rotating hole (652) is provided on one side of the fixed base (651), a vertical plate (653) is fixedly connected to one end of the fixed base (651), a rubber sleeve (655) is fixedly connected in the rotating hole (652) inside the fixed base (651), a plurality of buffer holes (656) are provided in a ring at equal intervals inside the rubber sleeve (655), a rotating shaft (657) is installed inside the rubber sleeve (655), and a bent rod (654) is fixedly connected to the outer side of the middle of the rotating shaft (657).

8. A high-sealing linear guide slider applied in a linear transmission module according to claim 7, characterized in that: The fixed base (651) is fixedly connected to the sealing plate (61), the vertical plate (653) is set on one side of the bent rod (654), the vertical projection of the bent rod (654) is L-shaped, and both ends of the bent rod (654) are protruding.