TWM610251U - Linear slide rail and lower dustproof part thereof - Google Patents

Abstract

The present invention discloses a linear slide rail and its lower dustproof piece; wherein the lower dustproof piece includes an elongated installation section, an upper rib and a lower rib connected and parallel to the installation section, and a reinforcing rib. The upper rib and the lower rib each have an inner surface and an outer surface on opposite sides, and the inner surface of the upper rib is spaced apart and adjacent to the inner surface of the lower rib. The reinforcing ribs are integrally connected to the inner surface of the upper rib and the inner surface of the lower rib to jointly form a trapezoidal space. Wherein, in a cross-section of the lower dust-proof member perpendicular to the sliding direction, the outer surface of the upper rib and the virtual extension surface of the outer surface of the lower rib intersect each other to form an intervening An acute angle of 15 degrees to 25 degrees.

Description

Linear slide rail and its lower dustproof parts

This creation relates to a slide rail, in particular to a linear slide rail and its lower dustproof parts.

As shown in Figures 1 and 2, the existing linear slide rail is fitted to the elongated rail 20a through excessive interference of the dust-proof member 10a, so that the dust-proof member 10a has sufficient force to abut against the elongated rail 20a, and then Achieve the effect of dust prevention. However, the dustproof member 10a is often bent and deformed due to the above-mentioned excessive interference fit, so that a long slit 30a is formed between the dustproof member 10a and the elongated rail 20a.

According to this, when the existing linear slide rail is in operation, the relative movement between the dustproof member 10a and the elongated rail 20a easily causes the dirt particles P to get stuck in the elongated slit 30a, which may cause problems. There is a gap between the dustproof member 10a and the elongated rail 20a, so that the dustproof member 10a loses the dustproof effect.

Therefore, the author believes that the above-mentioned defects can be improved, and with great concentration of research and the application of scientific principles, finally proposed a reasonable design and effective improvement of the above-mentioned shortcomings of this creation.

The embodiment of the invention is to provide a linear slide rail and its lower dustproof part, which can effectively improve the defects that may occur in the existing linear slideway dustproof parts.

This creative embodiment discloses a linear slide rail, which includes: a rail that is elongated and defines a sliding direction; a slider module is slidably arranged on the rail; and two end modules are installed on the rail. The opposite ends of the slider module are slidably disposed on the rail; and two lower dust-proof parts respectively abut on two opposite sides of the rail, and each of the lower dust-proof parts includes There are: an installation section, the two ends of which are respectively installed on the two end modules so as to straddle the slider module along the sliding direction; an upper rib connected to the installation section and parallel to the sliding Direction, and the upper rib has an inner surface and an outer surface on opposite sides; a lower rib is connected to the mounting section and parallel to the upper rib, and the lower rib has an inner surface on the opposite side And an outer surface; wherein the inner surface of the upper rib is spaced apart and adjacent to the inner surface of the lower rib; a strengthening rib is integrally connected to the inner surface of the upper rib and the The inner surface of the lower rib together constitutes a trapezoidal space; wherein, in a cross-section of the lower dustproof member perpendicular to the sliding direction, the outer surface of the upper rib and the lower The virtual extension surfaces of the outer surface of the rib intersect each other to form an acute angle between 15 degrees and 25 degrees; wherein, in each of the lower dust-proof parts, a free end edge of the upper rib abuts on the The side of the rail corresponds to the side and forms an upper interference distance between 0 mm (mm) and 0.05 mm, and a free end edge of the lower rib abuts against the side of the rail corresponding to the side surface. A lower interference distance between 0 mm and 0.05 mm is formed.

The embodiment of the present invention also discloses a lower dustproof piece of a linear slide rail, which includes: an installation section, which is elongated; an upper rib connected to the installation section and parallel to the installation section, and the upper rib has An inner surface and an outer surface on opposite sides; a lower rib connected to the mounting section and parallel to the upper rib, and the lower rib has an inner surface and an outer surface on opposite sides; wherein, The inner surface of the upper rib is spaced apart and adjacent to the inner surface of the lower rib; a reinforcing rib integrally connected to the inner surface of the upper rib and the inner surface of the lower rib , To jointly form a trapezoidal space; wherein, in a cross-section of the lower dustproof member perpendicular to the sliding direction, the outer surface of the upper rib and the outer surface of the lower rib are virtual The extension surfaces intersect each other to form an acute angle between 15 degrees and 25 degrees.

In summary, the linear slide rail and its lower dustproof part disclosed in the creative embodiment define the outer surface of the upper rib and the outer surface of the lower rib through the angular range of the acute angle. The relative structural conditions between the surfaces are relatively suitable, so that the upper ribs and the lower ribs can have a better supporting force, which is beneficial to reduce the generation of the upper ribs and the lower ribs relative to the rail. The degree of interference.

Furthermore, in the linear slide rail and its lower dust-proof part disclosed in this creative embodiment, the amount of deformation of the upper rib and the lower rib relative to the rail can be minimized, so as to achieve The effect of preventing dirt particles from getting stuck between the upper rib (or the lower rib) and the side surface of the rail, so that the inner rib can keep abutting against the rail without any gap. Side, strengthen its dustproof effect.

In order to have a better understanding of the features and technical content of this creation, please refer to the following detailed descriptions and drawings about this creation, but these descriptions and drawings are only used to illustrate this creation, not to make any claims about the scope of protection of this creation. limit.

The following is a specific specific embodiment to illustrate the implementation of the “linear slide rail and its lower dustproof piece” disclosed in this creation, and those skilled in the art can understand the advantages and effects of this creation from the content disclosed in this specification. This creation can be implemented or applied through other different specific embodiments, and various details in this specification can also be based on different viewpoints and applications, and various modifications and changes can be made without departing from the concept of this creation. In addition, the drawings of this creation are merely schematic illustrations, and are not depicted in actual size, and are stated in advance. The following implementations will further describe the related technical content of this creation in detail, but the disclosed content is not intended to limit the protection scope of this creation.

It should be understood that although terms such as "first", "second", and "third" may be used herein to describe various elements or signals, these elements or signals should not be limited by these terms. These terms are mainly used to distinguish one element from another, or one signal from another signal. In addition, the term "or" used in this document may include any one or a combination of more of the associated listed items depending on the actual situation.

Please refer to FIG. 3 to FIG. 12. This embodiment discloses a linear slide rail 1000. In this embodiment, a standard linear slide rail is used for illustration, but the present invention is not limited to this. For example, in other embodiments not shown in the present creation, the linear slide rail 1000 may also be a miniature linear slide rail. Wherein, as shown in FIGS. 3 and 4, the linear slide rail 1000 includes a long rail 200, a slider module 300 slidably disposed on the rail 200, and a slide module 300 mounted on the slide rail. Two end modules 400 on opposite ends of the block module 300 are slidably disposed on the rail 200 and a dustproof module 100 abutting against the outer surface of the rail 200.

The rail 200 (the length direction) defines a sliding direction D, and the outer surface of the rail 200 includes a top surface 201 and two side surfaces 202 on opposite sides, the top surface 201 and the two The side surfaces 202 are parallel to the sliding direction D. Furthermore, the slider module 300 includes a slider and a plurality of components mounted on the slider (such as: a plurality of balls rolling on the slider module 300 and the rail 200, and many At least one retainer for each of the balls), and the slider module 300 is arranged between the two end modules 400, and the two end modules 400 abut against the rail 200 respectively The top surface 201 and the two side surfaces 202. Wherein, since the slider module 300 and the two end modules 400 are not the improvement of this case, they will not be described in detail in this embodiment.

The dust-proof module 100 in this embodiment includes an upper dust-proof piece 1 and two lower dust-proof pieces 2 spaced apart from each other, and the upper dust-proof piece 1 and any one of the lower dust-proof pieces 2 are in this embodiment Although it is described in conjunction with the aforementioned components (such as the track 200, the slider module 300, and the two end modules 400), the creation is not limited to this. For example, in other embodiments not shown in this creation, the upper dustproof piece 1 and any one of the lower dustproof pieces 2 may also be used separately (for example, sold) or used with other components.

As shown in FIGS. 5 to 7, the upper dustproof member 1 is located inside the slider module 300 and the two end modules 400, and crosses the slider module 300 along the sliding direction D . Wherein, the upper dust-proof piece 1 is an integrally formed one-piece elastic structure (such as a rubber piece) in this embodiment, and the upper dust-proof piece 1 includes the upper dust-proof piece 1 which is installed on the slider module 300 or two A fixed section 11 of the end module 400 and two dustproof sections 12 connected to two opposite sides of the fixed section 11 respectively. The fixed section 11 and the two dust-proof sections 12 are both elongated and parallel to the sliding direction D.

It should be additionally noted that in this embodiment, the upper dust-proof member 1 is detachably buckled to the two end modules 400 at both ends of each dust-proof section 12, so that the The upper dust-proof member 1 can be installed on the two end modules 400 without any fixing elements (such as screws), thereby realizing the effect of quick disassembly and assembly. Wherein, the mutual matching structure between the upper dustproof member 1 and the two end modules 400 can be adjusted and changed according to design requirements, and is not limited to the drawing of this embodiment.

Wherein, each of the dust-proof sections 12 includes a bearing bar 121, an inner rib 122 and an outer rib 123 connected to the bearing bar 121, and each of the dust-proof sections 12 has a bearing bar 121, an inner rib 122, and an outer rib 123. Both the inner rib 122 and the outer rib 123 are elongated and parallel to the sliding direction D, and the two outer ribs 123 are respectively located on opposite sides of the two inner ribs 122, but this creation does not This is limited. For example, in other embodiments not shown in this creation, any one of the dust-proof sections 12 may also omit the carrying bar 121, and the inner rib 122 and the outer rib 123 are connected to each other.

It should be noted that, in this embodiment, the two dust-proof sections 12 are arranged in mirror symmetry with respect to the fixed section 11. Therefore, for ease of understanding, the following only describes the structure of a single dust-proof section 12, but This creation is not limited to this. For example, in other embodiments not shown in this creation, the structures of the two dust-proof sections 12 may also be slightly different.

In this embodiment, the inner rib 122 and the outer rib 123 each include an inner side surface 1221, 1231 that is adjacent to each other (and parallel to the sliding direction D), and an outer side surface 1222, 1232 that is far away from each other. And the inner rib 122 and the outer rib 123 each have substantially the same cross section perpendicular to the sliding direction D, but the present creation is not limited to this. For example, in other embodiments not shown in this creation, the inner rib 122 (and/or the outer rib 123) may also form a slightly different cross section perpendicular to the sliding direction D.

Furthermore, in a section of the dust-proof section 12 perpendicular to the sliding direction D (similar to FIG. 7), the outer side surface 1222 of the inner rib 122 and the outer side surface 1232 of the outer rib 123 The imaginary extension planes intersect with each other to form an isosceles triangle T1, and the isosceles triangle T1 has a vertex angle σ1 ranging from 10 degrees to 30 degrees. Wherein, the apex angle σ1 is preferably between 15 degrees and 25 degrees, but it is not limited thereto.

Accordingly, the dust-proof section 12 in this embodiment defines the outer surface 1222 of the inner rib 122 and the angle range of the isosceles triangle T1 and the angle range of the apex angle σ1. The relative structural conditions between the outer sides 1232 of the outer ribs 123 are relatively suitable, so that the inner ribs 122 and the outer ribs 123 can have better supporting force, which is beneficial to reduce the inner rib 122 and the outer ribs 123. The degree of interference required by the outer rib 123 with respect to the rail 200. Furthermore, based on the fact that the inner rib 122 and the outer rib 123 can interfere with the rail 200 at a low level in this embodiment, the upper dust-proof member 1 can effectively reduce its impact on the rail 200. The resulting abrasion and resistance further extend the service life of the upper dust-proof member 1 and improve the efficiency of the upper dust-proof member 1.

In more detail, as shown in FIGS. 7, 10, and 11, a free end 1223 of the inner rib 122 (such as the intersection of the inner side surface 1221 and the outer side surface 1222) abuts against The top surface 201 of the rail 200 forms an internal interference distance between 0 mm (mm) and 0.05 mm, and a free end edge 1233 of the outer rib 123 (such as the inner side surface 1231 and the The intersection of the outer side surface 1232) abuts against the top surface 201 of the track 200 and forms an outer interference distance, and the outer interference distance is greater than the inner interference distance. Wherein, the external interference distance is preferably between 0.05 mm and 0.1 mm, but it is not limited thereto.

Accordingly, the dust-proof section 12 is designed by the relative structure between the inner rib 122 and the outer rib 123, so that the amount of deformation of the inner rib 122 relative to the rail 200 can be minimized, According to this, the effect of preventing dirt particles from getting stuck between the inner rib 122 and the top surface 201 of the rail 200 is realized, so that the inner rib 122 can keep abutting against the rail 200 without gaps. The top surface 201 enhances its dust-proof effect.

In addition, in order to enable the inner ribs 122 and the outer ribs 123 of the upper dust-proof member 1 to further enhance their supporting force, the upper dust-proof member 1 preferably has at least one of the following conditions, but This creation is not limited to this. That is to say, in other embodiments not shown in this creation, the upper dustproof member 1 may not meet any of the following conditions.

As shown in FIG. 7, in the cross-section of any one of the dust-proof sections 12, the inner side surface 1221 of the inner rib 122 and the inner side surface 1231 of the outer rib 123 are sandwiched between 10 The inner rib 122 and the outer rib 123 each form an isosceles triangle, and the inner rib 122 has an apex angle σ122 ranging from 10 degrees to 30 degrees, and the The outer rib 123 has an apex angle σ123 ranging from 10 degrees to 30 degrees.

The above is the description of the upper dustproof piece 1 in this embodiment, and the two lower dustproof pieces 2 of this embodiment will be introduced below; wherein, as shown in FIGS. 8 to 10, each of the lower dustproof pieces 2 In this embodiment, it is an integrally formed one-piece elastic structure (such as a rubber piece), and the two lower dust-proof pieces 2 abut against the two side surfaces 202 of the rail 200 respectively.

It should be noted that in this embodiment, the two lower dust-proof parts 2 are arranged in mirror symmetry with respect to the rail 200. Therefore, for ease of understanding, only the structure of the single lower dust-proof part 2 will be described below. But this creation is not limited to this. For example, in other embodiments not shown in this creation, the structure of the two lower dustproof members 2 may also be slightly different.

In more detail, as shown in FIGS. 9, 10, and 12, the lower dust-proof member 2 includes a mounting section 21, an upper rib 22 and a lower rib 23 connected to the mounting section 21, and A reinforcing rib 24 of the upper rib 22 and the lower rib 23. Wherein, the mounting section 21, the upper rib 22, the lower rib 23, and the reinforcing rib 24 are all elongated and parallel to the sliding direction D (that is, the mounting section 21, the The upper rib 22, the lower rib 23, and the reinforcing rib 24 are parallel to each other).

Furthermore, the two ends of the installation section 21 are respectively installed on the two end modules 400 so as to straddle the slider module 300 along the sliding direction D (such as: FIG. 5). Wherein, the lower dust-proof member 2 in this embodiment is detachably buckled to the two end modules 400 at both ends of the mounting section 21, so that the lower dust-proof member 2 can be detached. It can be installed on the two end modules 400 by any fixing elements (such as screws), thereby achieving the effect of quick disassembly and assembly. It should be additionally noted that the mutual matching structure between the lower dustproof member 2 and the two end modules 400 can be adjusted and changed according to design requirements, and is not limited to the drawing of this embodiment.

Furthermore, the upper rib 22 and the lower rib 23 each have an inner surface 221, 231 and an outer surface 222, 232 on opposite sides, and the inner surface 221 of the upper rib 22 is spaced apart and adjacent to each other. On the inner surface 231 of the lower rib 23; and the reinforcing rib 24 is integrally connected to the inner surface 221 of the upper rib 22 and the inner surface 231 of the lower rib 23 to form a joint ( Parallel to the sliding direction D) a trapezoidal space S.

In this embodiment, the upper rib 22 and the lower rib 23 each have substantially the same cross section perpendicular to the sliding direction D, but the present invention is not limited to this. For example, in other embodiments not shown in this creation, the upper rib 22 (and/or the lower rib 23) may also form a slightly different cross section perpendicular to the sliding direction D.

Furthermore, in a cross-section of the lower dust-proof member 2 perpendicular to the sliding direction D (similar to FIG. 9), the outer surface 222 of the upper rib 22 and the lower rib 23 The virtual extension surfaces of the outer surface 232 intersect each other to form an acute angle σ2 ranging from 15 degrees to 25 degrees, and the inner surface 231 of the reinforcing rib 24 and the lower rib 23 is preferably sandwiched between An included angle σ24 of 110 degrees to 150 degrees.

Accordingly, the lower dust-proof member 2 in this embodiment defines the difference between the outer surface 222 of the upper rib 22 and the outer surface 232 of the lower rib 23 through the angular range of the acute angle σ2. Relative structural conditions are relatively suitable, so that the upper rib 22 and the lower rib 23 can have a better supporting force, which is beneficial to reduce the upper rib 22 and the lower rib 23 relative to the rail 200. The degree of interference required. Furthermore, based on the fact that the upper rib 22 and the lower rib 23 can have low interference with the rail 200 in this embodiment, the lower dust-proof member 2 can effectively reduce its impact on the rail 200. The resulting abrasion and resistance further extend the service life of the lower dust-proof member 2 and improve the efficiency of the lower dust-proof member 2.

In more detail, in each of the lower dustproof parts 2, a free end 223 of the upper rib 22 (such as the intersection of the inner surface 221 and the outer surface 222) abuts against the The rail 200 corresponds to the side surface 202 and forms an upper interference distance between 0 mm (mm) and 0.05 mm. A free end 233 of the lower rib 23 (such as the inner surface 231 and the The intersection of the outer surface 232 abuts against the corresponding side surface 202 of the track 200 and forms a lower interference distance between 0 mm and 0.05 mm.

Accordingly, the lower dust-proof member 2 is designed by the relative structure between the upper rib 22 and the lower rib 23, so that the upper rib 22 and the lower rib 23 are generated relative to the rail 200. The amount of deformation can be minimized, so as to prevent dirt particles from getting stuck between the upper rib 22 (or the lower rib 23) and the side surface 202 of the rail 200, thereby enabling the inner The rib 122 can keep abutting against the side surface 202 of the rail 200 without gaps, and enhance its dust-proof effect.

[Technical effects of this creative embodiment]

In summary, the linear slide rail and its upper dust-proof part disclosed in this creative embodiment are achieved through the isosceles triangle configuration defined by the dust-proof section and the angular range of the vertex angle. Defining relatively appropriate relative structural conditions between the outer side surface of the inner rib and the outer side surface of the outer rib, so that the inner rib and the outer rib can have a better supporting force, It is further beneficial to reduce the degree of interference between the inner ribs and the outer ribs with respect to the track.

Furthermore, in the linear slide rail and its upper dustproof part disclosed in this creative embodiment, the amount of deformation of the inner rib relative to the rail can be minimized, so as to avoid dirt particles from getting stuck. The effect of entering between the inner ribs and the top surface of the rail, in turn enables the inner ribs to keep abutting against the top surface of the rail without gaps, enhancing the dust-proof effect.

Furthermore, the linear slide rail and its lower dust-proof member disclosed in this creative embodiment define the difference between the outer surface of the upper rib and the outer surface of the lower rib through the angular range of the acute angle. The relative structural conditions are relatively suitable, so that the upper rib and the lower rib can have better supporting force, which is beneficial to reduce the interference between the upper rib and the lower rib relative to the track. degree.

Furthermore, in the linear slide rail and its lower dust-proof part disclosed in this creative embodiment, the amount of deformation of the upper rib and the lower rib relative to the rail can be minimized, so as to achieve The effect of preventing dirt particles from getting stuck between the upper rib (or the lower rib) and the side surface of the rail, so that the inner rib can keep abutting against the rail without any gap. Side, strengthen its dustproof effect.

The content disclosed above is only a preferred and feasible embodiment of this creation, and does not limit the patent scope of this creation. Therefore, all equivalent technical changes made using this creation specification and schematic content are included in the patent scope of this creation. Inside.

1000: Linear slide 100: Dustproof module 1: Upper dustproof parts 11: fixed segment 12: Dust section 121: Carrier Strip 122: inner rib 1221: inner side 1222: outer side 1223: free edge 123: Outer Rib 1231: inside 1232: outer side 1233: free edge 2: Lower dustproof parts 21: Installation section 22: upper rib 221: inner surface 222: Outer surface 223: Free Edge 23: lower ribs 231: inner surface 232: outer surface 233: Free Edge 24: Reinforced ribs 200: Orbit 201: top surface 202: side 300: Slider module 400: End module S: trapezoidal space D: Sliding direction T1: Isosceles triangle σ1: vertex angle σ12: included angle σ122: vertex angle σ123: vertex angle σ2: acute angle σ24: included angle 10a: Dustproof parts 20a: Long track 30a: Long slit P: dirty particles

Fig. 1 and Fig. 2 are schematic diagrams of the matching relationship between the dustproof parts of the existing linear slide rail and the track.

Fig. 3 is a three-dimensional schematic diagram of the linear slide rail of the creative embodiment.

FIG. 4 is an exploded schematic view of FIG. 3 from another perspective.

Fig. 5 is an exploded schematic view of Fig. 3 with the track omitted.

Fig. 6 is a three-dimensional schematic diagram of the upper dustproof piece of the creative embodiment.

Fig. 7 is a schematic front view of Fig. 6.

Fig. 8 is a three-dimensional schematic diagram of the lower dustproof piece of the creative embodiment.

Fig. 9 is a schematic front view of Fig. 8.

Fig. 10 is a schematic cross-sectional view of Fig. 3 along the line X-X.

Fig. 11 is an enlarged schematic diagram of the XI part of Fig. 10.

Fig. 12 is an enlarged schematic diagram of the XII part of Fig. 10.

2: Lower dustproof parts

21: Installation section

22: upper rib

221: inner surface

222: Outer surface

223: Free Edge

23: lower ribs

231: inner surface

232: outer surface

233: Free Edge

24: Reinforced ribs

S: trapezoidal space

σ2: acute angle

σ24: included angle

Claims (10)

A linear slide rail, which includes: A track, which is elongated and defines a sliding direction; A slider module slidably arranged on the track; Two end modules installed on opposite ends of the slider module and slidably arranged on the rail; and Two lower dust-proof parts abut against two opposite sides of the rail respectively, and each of the lower dust-proof parts includes: An installation section, both ends of which are respectively installed on the two end modules so as to straddle the slider module along the sliding direction; An upper rib connected to the mounting section and parallel to the sliding direction, and the upper rib has an inner surface and an outer surface on opposite sides; The lower rib is connected to the mounting section and parallel to the upper rib, and the lower rib has an inner surface and an outer surface on opposite sides; wherein the inner surfaces of the upper ribs are spaced apart and adjacent to each other On the inner surface of the lower rib; A reinforcing rib integrally connected to the inner surface of the upper rib and the inner surface of the lower rib to jointly form a trapezoidal space; Wherein, in a cross-section of the lower dust-proof member perpendicular to the sliding direction, the outer surface of the upper rib and the virtual extension surface of the outer surface of the lower rib intersect each other to form an intervening An acute angle of 15 degrees to 25 degrees; Wherein, in each of the lower dust-proof parts, a free end edge of the upper rib abuts against the corresponding side surface of the rail and forms an upper edge between 0 mm (mm) and 0.05 mm. The interference distance: a free end edge of the lower rib abuts against the corresponding side surface of the track and forms a lower interference distance between 0 mm and 0.05 mm. The linear slide rail according to claim 1, wherein, in any one of the lower dust-proof parts, the reinforcing ribs and the inner surface of the lower ribs are sandwiched by an angle between 110 degrees and 150 degrees. Angle. The linear slide rail according to claim 1, wherein each of the lower dust-proof parts is detachably buckled to the two end modules by the two ends of the installation section, and the two lower dust-proof parts It is arranged in mirror symmetry with respect to the track. The linear slide rail according to claim 1, wherein the linear slide rail further includes an upper dustproof member located on the inner side of the slider module and the two end modules and along the sliding direction Across the slider module; wherein, the upper dust-proof member includes: A fixed section installed on the slider module or the two end modules; and Two dust-proof sections are respectively connected to the opposite sides of the fixed section. Each dust-proof section includes an inner rib and an outer rib parallel to the sliding direction, and the two outer ribs are respectively located at two Opposite sides of the inner rib; in each of the dust-proof sections, the inner rib and the outer rib each include an inner side adjacent to each other and an outer side far away from each other; Wherein, in a cross section of any one of the dust-proof sections perpendicular to the sliding direction, the outer side surface of the inner rib and the virtual extension surface of the outer side surface of the outer rib intersect each other to form an isosceles Triangle, and the isosceles triangle has an apex angle ranging from 10 degrees to 30 degrees. The linear slide rail according to claim 4, wherein, in each of the dust-proof sections, a free end edge of the inner rib abuts against the top surface of the rail and is formed between 0 millimeters (mm) An inner interference distance of ~0.05 mm, a free end edge of the outer rib abuts against the top surface of the track and forms an outer interference distance, and the outer interference distance is greater than the inner interference distance. The linear slide rail according to claim 4, wherein, in the cross section of any one of the dust-proof sections, the inner side surface of the inner rib and the inner side surface of the outer rib are sandwiched between An included angle of 10 degrees to 30 degrees. The linear slide rail according to claim 4, wherein, in the cross-section of any one of the dust-proof sections, the inner rib and the outer rib each form an isosceles triangle, and the inner rib has a value between 10 An apex angle ranging from 10 degrees to 30 degrees, and the outer ribs have an apex angle ranging from 10 degrees to 30 degrees. The linear slide rail according to claim 4, wherein the upper dust-proof member is detachably buckled to the two end modules at both ends of each dust-proof section, and the two dust-proof sections are opposite to each other. The fixed section is arranged in mirror symmetry. A lower dustproof piece of a linear slide rail, which includes: One installation section is long; An upper rib connected to the mounting section and parallel to the mounting section, and the upper rib has an inner surface and an outer surface on opposite sides; The lower rib is connected to the mounting section and parallel to the upper rib, and the lower rib has an inner surface and an outer surface on opposite sides; wherein the inner surfaces of the upper ribs are spaced apart and adjacent to each other On the inner surface of the lower rib; A reinforcing rib integrally connected to the inner surface of the upper rib and the inner surface of the lower rib to jointly form a trapezoidal space; Wherein, in a cross-section of the lower dust-proof member perpendicular to the sliding direction, the outer surface of the upper rib and the virtual extension surface of the outer surface of the lower rib intersect each other to form an intervening An acute angle of 15 degrees to 25 degrees. The lower dustproof member of the linear slide rail according to claim 9, wherein the reinforcing rib and the inner surface of the lower rib form an included angle between 110 degrees and 150 degrees.

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