Linear sliding rail and dustproof mechanism thereof

Abstract

The invention provides a linear sliding rail and a dustproof mechanism thereof. The dustproof mechanism comprises a sliding module, two lower dustproof pieces arranged on the sliding module and two end covers fixed to the two ends of the sliding module respectively. And two tail end parts of each lower dustproof piece protrude out of the sliding module. And the two lower grooves of one end cover respectively correspond to the two lower grooves of the other end cover along the sliding direction. Any two lower grooves which are configured along the sliding direction and belong to different end covers are respectively sleeved on two tail end parts of one lower dustproof member, and the total length of the lower grooves and the sliding module in the sliding direction is 100.4%-110% of the length of the corresponding lower dustproof member, and the total length of the lower grooves is 100.4%-110% of the length of the corresponding lower dustproof member. And each lower dustproof piece can move along the sliding direction. Therefore, the position of each lower dustproof piece can be automatically adjusted so as to absorb the interference amount when the lower dustproof pieces make contact with the track, and therefore the lower dustproof pieces abut against each other more stably.

Description

TECHNICAL FIELD

[0001] The present application relates to a slide rail, in particular to a linear slide rail and a dustproof mechanism thereof. BACKGROUND

[0002] Two lower dustproof members of the existing linear slide rail are fixed to the slide block and the two end covers, so each lower dustproof member cannot move and can only absorb the interference between the lower dustproof member and each component by deformation, which causes each lower dustproof member to easily produce elastic fatigue and fail. SUMMARY

[0003] The technical problem to be solved by the present application is to provide a linear slide rail and a dustproof mechanism thereof, which can effectively improve the defects that may occur in the existing linear slide rail.

[0004] The embodiment of the present application discloses a linear slide rail, which comprises a rail having two side surfaces located at opposite sides; a sliding module slidably arranged on the rail along a sliding direction, and the sliding module comprises a slide block including a base and two side wing portions respectively extending from the base, and inner edges of the two side wing portions respectively face the two side surfaces; two circulating seats respectively installed on the two side wing portions and respectively corresponding to the two side surfaces; wherein each circulating seat is formed with two rolling channels; a plurality of rolling members installed in the two circulating seats and respectively moving along the plurality of rolling channels of the two circulating seats; two lower dustproof members respectively corresponding to the two circulating seats along the sliding direction and respectively abutting against the two side surfaces; wherein each lower dustproof member has two end portions respectively protruding out of two mounting end faces of the slide block; two end covers respectively fixed to the two mounting end faces of the slide block; wherein each end cover is formed with two lower grooves, and the two lower grooves of one end cover respectively correspond to the two lower grooves of the other end cover along the sliding direction; wherein any two lower grooves arranged along the sliding direction and belonging to different end covers respectively sleeve the two end portions of one lower dustproof member and have a total length with the slide block along the sliding direction, which is 100.4% to 110% of the length of the corresponding lower dustproof member, so that each lower dustproof member can move along the sliding direction relative to the two end covers and the sliding module.

[0005] Optionally, each lower dustproof member comprises a main body segment abutting against the corresponding circulating seat along a thickness direction perpendicular to the sliding direction; a contact segment extending from one side of the main body segment along a width direction perpendicular to the sliding direction and the thickness direction, and the contact segment abutting against the corresponding side surface; a buffer segment extending from the other side of the main body segment; wherein when the contact segment is pressed, the lower dustproof member can move along at least one of the thickness direction and the width direction.

[0006] Optionally, in any end portion of each lower dustproof component, a longitudinal gap is left between the main body section and the corresponding lower groove along the thickness direction.

[0007] Optionally, in any end portion of each lower dustproof component, a transverse gap is left in the width direction between the buffer section and the corresponding lower groove.

[0008] Optionally, each circulation seat forms a first buffer groove, each lower groove includes a second buffer groove, and any two lower grooves belonging to different end caps are arranged along the sliding direction and are connected to a first buffer groove by the two second buffer grooves to form a buffer groove together; the buffer section of each lower dustproof component has a rib, which is disposed in a buffer groove and does not touch the inner wall of the buffer groove.

[0009] Optionally, the linear slide rail includes two upper dustproof components, which are respectively disposed corresponding to two circulation seats along the sliding direction and abut against two side surfaces; wherein, each upper dustproof component has two end portions, which respectively protrude from the two mounting end faces of the slider; each end cover forms two upper grooves, and the two upper grooves of one end cover respectively correspond to the two upper grooves of the other end cover along the sliding direction; any two upper grooves arranged along the sliding direction and belonging to different end covers are respectively fitted onto the two end portions of one upper dustproof component and have a total length together with the slider in the sliding direction, which is 100.4% to 110% of the length of the corresponding upper dustproof component, so that each upper dustproof component can move relative to the two end covers and the sliding module in the sliding direction.

[0010] Optionally, each circulation seat includes: two deflecting sections, each protruding from one of the two mounting faces of the slider; each deflecting section has a layout surface adjacent to the corresponding mounting face, which is recessed to form a multi-channel oil passage connecting the two rolling channels; two outer rail sections, inserted into corresponding side wings, and each outer rail section having its two ends connected to the two deflecting sections; two inner rail sections, located between the corresponding side wings and the corresponding side surfaces, and each inner rail section having its two ends connected to the two deflecting sections; wherein each outer rail section can be connected to one of the inner rail sections through the two deflecting sections to jointly form a rolling channel.

[0011] Optionally, each end cap forms an oil injection channel, and two adjacent steering segments belonging to different circulation seats are disposed within one end cap, and the two multi-channel oil passages formed therein are connected to the corresponding oil injection channel; wherein, the multi-channel oil passage of each steering segment includes: an oil inlet channel connected to the corresponding oil injection channel; at least two oil supply channels connected to the oil inlet channel, and the at least two oil supply channels are respectively connected to the two corresponding rolling channels; and an oil storage channel connected to the oil inlet channel but not connected to any of the rolling channels.

[0012] Optionally, each turning segment has two outer arc segments and two inner arc segments respectively connected to the two outer arc segments, and each outer arc segment has a first radius, while each inner arc segment has a second radius, which is 90% to 110% of the first radius; the two ends of each outer track segment are respectively connected to the two outer arc segments belonging to different turning segments; the two ends of each inner track segment are respectively connected to the two inner arc segments belonging to different turning segments.

[0013] This application also discloses a dustproof mechanism for a linear slide rail, comprising: a sliding module for slidably mounted on a track; two lower dustproof components disposed on the sliding module, each lower dustproof component having two end portions protruding from both ends of the sliding module; and two end caps fixed to both ends of the sliding module; wherein each end cap forms two lower grooves, and the two lower grooves of one end cap correspond to the two lower grooves of the other end cap along a sliding direction; wherein any two lower grooves disposed along the sliding direction and belonging to different end caps are respectively fitted onto the two end portions of one lower dustproof component and share a total length with the sliding module in the sliding direction, which is 100.4% to 110% of the length of the corresponding lower dustproof component, so that each lower dustproof component can move relative to the two end caps and the sliding module in the sliding direction.

[0014] In summary, the linear slide rail and its dustproof mechanism disclosed in this application are mounted in a track-like manner by each of the lower dustproof components being matched with the sliding module and the two end caps, so that each of the lower dustproof components can automatically adjust its position to absorb the amount of interference between them when in contact with the track, thereby maintaining a more stable contact with each other.

[0015] The other effects and embodiments of this application are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional schematic diagram of the linear slide rail according to an embodiment of this application;

[0018] Figure 2 for Figure 1 A decomposed diagram of a linear slide rail after omitting the track;

[0019] Figure 3for Figure 1 A cross-sectional view along section line III-III;

[0020] Figure 4 for Figure 2 A schematic diagram of local decomposition;

[0021] Figure 5 for Figure 1 A cross-sectional view along section line VV;

[0022] Figure 6 for Figure 5 An enlarged diagram of area VI;

[0023] Figure 7 for Figure 1 Schematic sectional view along section line VII-VII;

[0024] Figure 8 for Figure 7 An enlarged schematic diagram of region VIII;

[0025] Figure 9 for Figure 1 A cross-sectional view along section line IX-IX;

[0026] Figure 10 for Figure 1 A sectional view of a linear slide rail with the track omitted along section line XX.

[0027] Figure 11 for Figure 1 A cross-sectional view along section line XI-XI;

[0028] Figure 12 for Figure 1 A cross-sectional view along section line XII-XII;

[0029] Figure 13 for Figure 12 An enlarged schematic diagram of region XIII. Detailed Implementation

[0030] The following specific embodiments illustrate the implementation of the "linear guide rail and its dustproof mechanism" disclosed in this application. Those skilled in the art can understand the advantages and effects of this application from the content disclosed in this specification. This application can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of this application. Furthermore, the accompanying drawings are for simple illustration only and are not depictions of actual dimensions, as stated in advance. The following embodiments will further describe the relevant technical content of this application in detail, but the disclosed content is not intended to limit the scope of protection of this application.

[0031] It should be understood that while terms such as "first," "second," and "third" may be used in this document to describe various components or features, these components or features should not be limited by these terms. These terms are primarily used to distinguish one component from another, or one feature from another. Furthermore, the term "or" as used in this document should, as appropriate, include any combination of one or more related listed items.

[0032] Please see Figures 1 to 13 As shown, this is an embodiment of the present application. This embodiment discloses a linear slide rail 100, which is described in this embodiment as a standard linear slide rail, but the present application is not limited thereto. Figures 1 to 3 As shown, the linear slide rail 100 in this embodiment includes an elongated track 1, a sliding module 2 slidably disposed on the track 1 along a sliding direction D1, a plurality of dustproof components 3 installed on the sliding module 2, and two end caps 4 respectively installed on opposite ends of the sliding module 2 and slidably disposed on the track 1.

[0033] The track 1 is defined by a sliding direction D1 along its length, and the track 1 includes an upper surface 11 and two side surfaces 12 located on opposite sides. In this embodiment, the track 1 is straight, and the two side surfaces 12 are connected to opposite edges of the upper surface 11, and both the upper surface 11 and the two side surfaces 12 are parallel to the sliding direction D1, but this application is not limited thereto. For example, in other embodiments not shown in this application, the track 1 may also be arc-shaped according to actual needs.

[0034] In this embodiment, the sliding module 2 includes a slider 21, two circulation seats 22 mounted on the slider 21, and a plurality of rolling elements 23 mounted within the two circulation seats 22. Furthermore, in this embodiment, the sliding module 2 is described as including the aforementioned components and being used in conjunction with the track 1, the plurality of dustproof components 3, and the two end caps 4, but this application is not limited thereto. For example, in other embodiments not shown in this application, the sliding module 2 or the circulation seats 22 may also be used independently (e.g., for sale) or in conjunction with other components, depending on actual needs.

[0035] In this embodiment, the slider 21 is elongated, and the sliding direction D1 can also be defined by the length direction of the slider 21. The slider 21 includes a base 211 and two side wings 212 extending from the base 211, and the two mounting end faces 213 of the slider 21 are perpendicular to the sliding direction D1. Furthermore, the inner edge of the base 211 faces the upper surface 11 of the track 1, while the inner edges of the two side wings 212 face the two side surfaces 12 of the track 1, respectively.

[0036] Two circulation seats 22 are respectively mounted on the two side wings 212 and correspond to the two side surfaces 12 of the track 1. In this embodiment, each circulation seat 22 forms two rolling channels P, and multiple rolling elements 23 move along the multiple rolling channels P of the two circulation seats 22. In this embodiment, the multiple rolling elements 23 are described as multiple rollers combined with multiple chains (e.g., four chains), but this application is not limited to this. For example, in other embodiments not shown in this application, the multiple rolling elements 23 may also use multiple balls depending on actual needs.

[0037] It should be noted that the two circulation seats 22 in this embodiment have substantially the same structure or are mirror-symmetrical to the track 1. Therefore, for ease of understanding, only the structure of a single circulation seat 22 will be described below, but this application is not limited thereto. For example, in other embodiments not shown in this application, the structures of the two circulation seats 22 may also be slightly different.

[0038] like Figures 4 to 8 As shown, the circulation seat 22 includes two turning sections 221, two outer track sections 222, and two inner track sections 223. The two ends of each outer track section 222 are respectively connected to the two turning sections 221, and the two ends of each inner track section 223 are also respectively connected to the two turning sections 221, so that each outer track section 222 can be connected to one of the inner track sections 223 through the two turning sections 221 to form a rolling channel P.

[0039] In this embodiment, the circulation seat 22 is described as two semi-circular seats 22a assembled together, and the two semi-circular seats 22a have a substantially identical or mirror-symmetrical structure. Each semi-circular seat 22a can be composed of two pieces assembled together, but this application is not limited to this. Each steering segment 221 is integrally connected to one outer track segment 222 and one inner track segment 223 to form one semi-circular seat 22a. In other words, any one of the steering segments 221 of the circulation seat 22 is integrally connected to one of the outer track segments 222 and one of the inner track segments 223, and can be detachably assembled to (connected to another steering segment 221) another outer track segment 222 and another inner track segment 223.

[0040] More specifically, each of the turning segments 221 has two outer arc segments 2211a and 2212a and two inner arc segments 2211b and 2212b respectively connected to the two outer arc segments 2211a and 2212a. Each of the outer arc segments 2211a and 2212a has a first radius R1, and each of the inner arc segments 2211b and 2212b has a second radius R2, which is 90% to 110% of the first radius R1.

[0041] Furthermore, the two ends of each outer track segment 222 are respectively connected to two outer arc segments 2211a and 2212a belonging to different steering segments 221, and the two ends of each inner track segment 223 are respectively connected to two inner arc segments 2211b and 2212b belonging to different steering segments 221.

[0042] Therefore, in this embodiment, each of the turning segments 221 of the linear slide rail 100 is planned with a specific proportional relationship between the first radius R1 and the second radius R2, so that each of the outer track segments 222 corresponds to the first radius R1 and each of the inner track segments 223 corresponds to the second radius R2, thereby enabling the multiple rolling elements 23 in any of the rolling channels P to turn and roll more smoothly.

[0043] From another perspective, each steering segment 221 has a closed steering channel 2211 and an open steering channel 2212 located outside the closed steering channel 2211. The closed steering channel 2211 includes an outer arc segment 2211a and an inner arc segment 2211b connected to each other, while the open steering channel 2212 includes another outer arc segment 2212a and another inner arc segment 2212b connected to each other. Furthermore, in the closed steering channel 2211, the center C2211a of the outer arc segment 2211a and the center C2211b of the inner arc segment 2211b are spaced apart; similarly, in the open steering channel 2212, the center C2212a of the outer arc segment 2212a and the center C2212b of the inner arc segment 2212b are also spaced apart.

[0044] Furthermore, the enclosed steering channel 2211 of each steering segment 221 is integrally connected to an outer track segment 222 by its outer arc section 2211a and assembled to an inner track segment 223 by its inner arc section 2211b, thereby forming a semi-circular seat 22a. That is, the enclosed steering channel 2211 of any steering segment 221 of the circular seat 22 is integrally connected to one of the outer track segments 222 and one of the inner track segments 223, and is detachably assembled to another outer track segment 222 and another inner track segment 223 by the open steering channel 2212.

[0045] Furthermore, the two steering segments 221 protrude from the two mounting end faces 213 of the slider 21, the two outer track segments 222 are tubular and inserted into the corresponding side wings 212, and the two inner track segments 223 are located between the two side wings 212 (e.g., the two inner track segments 223 are located between the corresponding side wings 212 and the corresponding side surface 12, and the rolling element 23 of either of the two inner track segments 223 can roll against the corresponding side surface 12).

[0046] More specifically, such as Figures 2 to 4 ,and Figure 9As shown, each of the steering segments 221 has a layout surface 2213 adjacent to the corresponding mounting end face 213, which is recessed to form a multi-channel oil passage 2214 connecting the two rolling channels P. Thus, in this embodiment, the linear guide rail 100 forms the multi-channel oil passage 2214 at a specific position of each steering segment 221 (e.g., the layout surface 2213 adjacent to the mounting end face 213) to facilitate a more uniform distribution of lubricating oil within the multiple rolling channels P, thereby facilitating the smooth rolling of the multiple rolling elements 23.

[0047] It should be noted that the specific structure of the multi-channel oil circuit 2214 can be adjusted and changed according to actual needs. However, for ease of understanding, the following will describe one of the optional structures of the multi-channel oil circuit 2214, but this application is not limited thereto.

[0048] In this embodiment, the multi-channel oil passage 2214 of each steering segment 221 includes an oil inlet passage 2214a, at least two oil supply passages 2214b connected to the oil inlet passage 2214a, and an oil storage passage 2214c connected to the oil inlet passage 2214a. At least two of the oil supply passages 2214b are respectively connected to two corresponding rolling passages P, while the oil storage passage 2214c is not connected to any of the rolling passages P, but this application is not limited thereto. For example, in other embodiments not shown in this application, the oil inlet passage 2214a may omit the oil storage passage 2214c according to actual needs.

[0049] More specifically, in each of the steering segments 221 of this embodiment, the oil inlet channel 2214a is arranged in a straight line and has a first opening O1 and a second opening O2 located at both ends, respectively. At least two oil supply channels 2214b and the oil storage channel 2214c are each formed by extending from the second opening O2, and the oil storage channel 2214c is arranged in a straight line.

[0050] Furthermore, in this embodiment, the number of at least two oil supply channels 2214b in each of the multi-channel oil passages 2214 is described as three; the three oil supply channels 2214b of one of the steering sections 221 are connected to the two inner rail sections 223 and one of the outer rail sections 222, and the three oil supply channels 2214b of the other steering section 221 are connected to the two inner rail sections 223 and the other outer rail section 222, but this is not a limitation. For example, in other embodiments not shown in this application, the number of oil supply channels 2214b in each of the multi-channel oil passages 2214 may also be two or four.

[0051] The two end caps 4 are respectively fixed to the two mounting end faces 213 of the slider 21, and each end cap 4 forms an oil injection channel 41. Two adjacent deflecting segments 221 belonging to different circulation seats 22 are disposed within one end cap 4, and the two multi-channel oil passages 2214 formed therein are connected to the corresponding oil injection channels 41. That is, each oil inlet channel 2214a (e.g., the first opening O1) is connected to the corresponding oil injection channel 41, so that the lubricating oil can be injected into the oil injection channels 41 of the two end caps 4, and then flow along the multiple multi-channel oil passages 2214 to the multiple rolling channels P.

[0052] It should be further noted that the multiple rolling channels P can also be considered as being formed jointly by the sliding module 2 and the two end caps 4. Each rolling channel P is in a closed loop, and the positions of the multiple rolling channels P correspond to the two side surfaces 12 of the track 1. Furthermore, multiple dustproof components 3 are respectively disposed along the sliding direction D1 corresponding to the two loop seats 22 and abut against the two side surfaces 12 of the track 1, thereby isolating the multiple rolling channels P from the external environment and achieving a dustproof effect.

[0053] Furthermore, such as Figures 2 to 4 ,and Figure 10 As shown, each dustproof component 3 is an elongated structure parallel to the sliding direction D1 and has two end portions 31, which protrude from the two mounting end faces 213 of the slider 21, respectively. The end portions 31 of the plurality of dustproof components 3 protruding from any one of the mounting end faces 213 are inserted into one end cap 4 (e.g., each dustproof component 3 may have a gap G between itself and at least one end cap 4 in the sliding direction D1), and each dustproof component 3 is movable relative to the two end caps 4 and the sliding module 2 along the sliding direction D1.

[0054] In this embodiment, the multiple dustproof components 3 are generally identical and integrally formed single-piece elastic structures. Furthermore, the multiple dustproof components 3 are distinguished into two lower dustproof components 3a and two upper dustproof components 3b according to their installation positions. That is, the two lower dustproof components 3a are located away from the upper surface 11 of the track 1, while the two upper dustproof components 3b are located adjacent to the upper surface 11 of the track 1. However, this application is not limited to this. For example, in other embodiments not shown in this application, the structure of the lower dustproof components 3a may be different from that of the upper dustproof components 3b.

[0055] It should be noted first that, such as Figure 2 and Figures 10 to 13As shown, the sliding module 2, the plurality of dustproof components 3 (or the two lower dustproof components 3a), and the two end caps 4 in this embodiment can be collectively defined as a dustproof mechanism, and the dustproof mechanism can be used individually (e.g., for sale) or in combination with other components according to actual needs. Each end cap 4 has two lower grooves 42 and two upper grooves 43 spaced apart from each other, and both lower grooves 42 and upper grooves 43 are parallel to the sliding direction D1. Further, the two lower grooves 42 of one end cap 4 correspond along the sliding direction D1 to the two lower grooves 42 of the other end cap 4, and the two upper grooves 43 of one end cap 4 correspond along the sliding direction D1 to the two upper grooves 43 of the other end cap 4.

[0056] Two lower dustproof components 3a are respectively disposed along the sliding direction D1 corresponding to the two circulating seats 22 and respectively abutting against the two side surfaces 12, and the two end portions 31 of each lower dustproof component 3a protrude from the two mounting end faces 213 of the slider 21. Any two lower grooves 42, arranged along the sliding direction D1 and belonging to different end caps 4, are respectively fitted onto the two end portions 31 of one lower dustproof component 3a and share a total length L with the slider 21 along the sliding direction D1, which is 100.4% to 110% of the length L3a of the corresponding lower dustproof component 3a, so that each lower dustproof component 3a can move relative to the two end caps 4 and the sliding module 2 along the sliding direction D1.

[0057] Therefore, in this embodiment, the linear slide rail 100 is mounted in a track-like manner by each of the lower dustproof components 3a being matched with the sliding module 2 and the two end caps 4, so that each of the lower dustproof components 3a can automatically adjust its position to absorb the amount of interference between them when in contact with the track 1, thereby maintaining a more stable contact with each other.

[0058] Furthermore, since the two upper dustproof components 3b in this embodiment have the same structure as the two lower dustproof components 3a, the two upper dustproof components 3b also possess the aforementioned technical effects. That is, the two upper dustproof components 3b in this embodiment may optionally have the following connection relationship.

[0059] Two upper dustproof components 3b are respectively disposed along the sliding direction D1 corresponding to the two circulating seats 22 and respectively abutting against the two side surfaces 12, and the two end portions 31 of each upper dustproof component 3b protrude from the two mounting end faces 213 of the slider 21. Any two upper grooves 43, arranged along the sliding direction D1 and belonging to different end caps 4, are respectively fitted onto the two end portions 31 of one upper dustproof component 3b, and the total length L shared by the slider 21 and the two upper grooves 43 along the sliding direction D1 is 100.4% to 110% of the length L3b of the corresponding upper dustproof component 3b, so that each upper dustproof component 3b can move relative to the two end caps 4 and the sliding module 2 along the sliding direction D1.

[0060] It should be further noted that the specific construction of the two dustproof components 3 (or the two upper dustproof components 3b) can be adjusted and varied according to actual needs. However, for ease of understanding, the following description will describe one of the optional constructions of the two lower dustproof components 3a. Furthermore, since the two lower dustproof components 3a adopt a generally identical or mirror-symmetrical construction, for ease of explanation, only the construction and corresponding connection relationship of one of the lower dustproof components 3a will be described below, but this application is not limited thereto. For example, in other embodiments not shown in this application, the construction of the two lower dustproof components 3a may be slightly different, provided that they can function to move relative to the slider 21 and the two end caps 4.

[0061] In this embodiment, the lower dustproof component 3a includes a main body segment 31a, and a contact segment 32a and a buffer segment 33a respectively connected to both sides of the main body segment 31a. The main body segment 31a, the contact segment 32a, and the buffer segment 33a are each elongated structures parallel to the sliding direction D1, and their two ends belong to the two end portions 31 of the lower dustproof component 3a.

[0062] More specifically, the main body segment 31a abuts against the corresponding circulation seat 22 along a thickness direction D2 perpendicular to the sliding direction D1, the contact segment 32a is formed by extending from one side of the main body segment 31a along a width direction D3 perpendicular to the sliding direction D1 and the thickness direction D2, and the buffer segment 33a is formed by extending from the other side of the main body segment 31a.

[0063] Furthermore, the contact segment 32a abuts against the corresponding side surface 12 of the track 1, and when the contact segment 32a is compressed, the lower dustproof member 3a can move along at least one of the thickness direction D2 and the width direction D3. Further, in any of the end portions 31 of the lower dustproof member 3a in this embodiment, a longitudinal gap G1 is left between the main body segment 31a and the corresponding lower groove 42 along the thickness direction D2, and a transverse gap G2 is left between the buffer segment 33a and the corresponding lower groove 42 along the width direction D3, thereby facilitating the lower dustproof member 3a to absorb the interference by moving or rotating toward the longitudinal gap G1 and / or the transverse gap G2.

[0064] Furthermore, each of the circulating seats 22 may further form a first buffer groove 224, and each of the lower grooves 42 may further include a second buffer groove 421. Any two of the lower grooves 42, which are arranged along the sliding direction D1 and belong to different end caps 4, are connected by the two second buffer grooves 421 to a first buffer groove 224 to form a buffer groove B.

[0065] Furthermore, each of the lower dustproof components 3a has a buffer section 33a with a rib 331a disposed within a buffer groove B and not touching the inner wall of the buffer groove B, thereby being held within the buffer groove B by the rib 331a, so that the lower dustproof component 3a can be stably disposed between the sliding module 2 and the two end caps 4, and the lower dustproof component 3a can absorb the interference by rotation.

[0066] [Technical Effects of the Embodiments in this Application]

[0067] In summary, the linear slide rail, its sliding module, and the circulation seat disclosed in the embodiments of this application form the multi-channel oil passage at a specific position in each of the turning segments (e.g., the layout surface adjacent to the mounting end face), so that the lubricating oil can be more evenly distributed in the multiple rolling channels, thereby facilitating the smooth rolling of the multiple rolling elements.

[0068] Furthermore, the linear slide rail and its dustproof mechanism disclosed in the embodiments of this application are mounted in a track-like manner by each of the lower dustproof components being matched with the sliding module and the two end caps, so that each of the lower dustproof components can automatically adjust its position to absorb the amount of interference between them when in contact with the track, thereby maintaining a more stable contact with each other.

[0069] Furthermore, the linear slide rail, its sliding module, and the circulation seat disclosed in the embodiments of this application are planned in a specific proportional relationship between the first radius and the second radius in each of the turning segments, so that each of the outer track segments corresponds to the first radius and each of the inner track segments corresponds to the second radius, thereby enabling the multiple rolling elements in any of the rolling channels to turn and roll more smoothly.

[0070] The embodiments and / or implementation methods described above are merely preferred embodiments and / or implementation methods for implementing the technology of this application, and are not intended to limit the implementation methods of the technology of this application in any way. Any person skilled in the art may make some modifications or alterations to other equivalent embodiments without departing from the scope of the technical means disclosed in this application, but these should still be regarded as the technology or embodiments that are substantially the same as those of this application.

Claims

1. A linear slide, characterized in that, The linear slide rail comprises: a rail having two side surfaces on opposite sides; a sliding module slidably arranged on the rail along a sliding direction, and the sliding module comprises: a slider comprising a base and two side wing portions respectively extending from the base, and the inner edges of the two side wing portions respectively face the two side surfaces; two circulating seats respectively mounted on the two side wing portions and respectively corresponding to the two side surfaces; wherein each of the circulating seats is formed with two rolling channels; and a plurality of rolling members mounted in the two circulating seats and respectively moving along the plurality of rolling channels of the two circulating seats; two lower dustproof members respectively corresponding to the two circulating seats along the sliding direction and respectively abutting against the two side surfaces; wherein each of the lower dustproof members has two end portions respectively protruding out of two mounting end faces of the slider; and two end covers respectively fixed to the two mounting end faces of the slider; wherein each of the end covers is formed with two lower grooves, and the two lower grooves of one of the end covers respectively correspond to the two lower grooves of the other end cover along the sliding direction; wherein any two of the lower grooves arranged along the sliding direction and belonging to different end covers respectively sleeve the two end portions of one of the lower dustproof members and have a total length with the slider along the sliding direction, which is 100.4% to 110% of the length of the corresponding lower dustproof member, so that each of the lower dustproof members can move along the sliding direction relative to the two end covers and the sliding module.

2. The linear slide rail according to claim 1, characterized in that, Each of the lower dustproof members comprises: a main body segment abutting against the corresponding circulating seat along a thickness direction perpendicular to the sliding direction; a contact segment extending from one side of the main body segment along a width direction perpendicular to the sliding direction and the thickness direction, and the contact segment abuts against the corresponding side surface; and a buffer segment extending from the other side of the main body segment; wherein when the contact segment is compressed, the lower dustproof member can move along at least one of the thickness direction and the width direction.

3. The linear slide of claim 2, wherein, In any one of the end portions of each of the lower dustproof members, a longitudinal gap is left between the main body segment and the corresponding lower groove along the thickness direction.

4. The linear slide of claim 2, wherein, In any one of the end portions of each of the lower dustproof members, a transverse gap is left between the buffer segment and the corresponding lower groove along the width direction.

5. The linear slide of claim 2, wherein, Each of the circulating seats is formed with a first buffer groove, each of the lower grooves comprises a second buffer groove, and any two of the lower grooves arranged along the sliding direction and belonging to different end covers jointly form a buffer groove by communicating the two second buffer grooves with one first buffer groove; the buffer segment of each of the lower dustproof members has a rib arranged in one buffer groove and not touching the inner wall of the buffer groove.

6. The linear slide of claim 1, wherein, The linear slide rail comprises two upper dustproof members corresponding to the two circulating seats respectively and abutting against the two side surfaces respectively along the sliding direction; each of the upper dustproof members has two end portions protruding from two mounting end faces of the slider respectively; each of the end covers is formed with two upper grooves, and the two upper grooves of one of the end covers correspond to the two upper grooves of the other end cover respectively along the sliding direction; any two upper grooves arranged along the sliding direction and belonging to different end covers are sleeved with the two end portions of one of the upper dustproof members respectively, and have a total length with the slider along the sliding direction, which is 100.4%-110% of the length of the corresponding upper dustproof member, so that each of the upper dustproof members can move along the sliding direction relative to the two end covers and the sliding module.

7. The linear slide of claim 1, wherein, Each of the circulating seats comprises: two turning sections protruding from two mounting end faces of the slider respectively; each of the turning sections has a layout surface adjacent to the corresponding mounting end face, which is concavely formed with a multi-channel oil passage connected to two rolling channels; two outer track sections inserted into the corresponding wing portions, and two ends of each of the outer track sections are connected to two turning sections respectively; and two inner track sections located between the corresponding wing portions and the corresponding side surfaces, and two ends of each of the inner track sections are connected to two turning sections respectively; wherein each of the outer track sections can be connected to one of the inner track sections through two turning sections to jointly form one of the rolling channels.

8. The linear slide of claim 7, wherein, Each of the end covers is formed with an oil injection channel, and two turning sections adjacent to each other and belonging to different circulating seats are arranged in one of the end covers, and two multi-channel oil passages formed by the two turning sections are connected to the corresponding oil injection channel; wherein the multi-channel oil passage of each of the turning sections comprises: an oil inlet channel connected to the corresponding oil injection channel; at least two oil supply channels connected to the oil inlet channel, and at least two of the oil supply channels are connected to two corresponding rolling channels respectively; and an oil storage channel connected to the oil inlet channel but not connected to any of the rolling channels.

9. The linear slide of claim 7, wherein, Each of the turning sections has two outer arc sections and two inner arc sections connected to the two outer arc sections respectively, and each of the outer arc sections has a first radius, and each of the inner arc sections has a second radius which is 90%-110% of the first radius; two ends of each of the outer track sections are connected to two outer arc sections belonging to different turning sections respectively; two ends of each of the inner track sections are connected to two inner arc sections belonging to different turning sections respectively.

10. A dustproof mechanism of a linear slide rail, characterized by, The dustproof mechanism of the linear slide rail comprises: a sliding module arranged slidably on a rail; two lower dustproof members arranged in the sliding module, and each of the lower dustproof members has two end portions protruding from two ends of the sliding module respectively; and Two end covers are respectively fixed to the two ends of the sliding module; each of the end covers is formed with two lower grooves, and the two lower grooves of one of the end covers correspond to the two lower grooves of the other end cover along a sliding direction; Wherein, any two lower grooves belonging to different end covers and arranged along the sliding direction are respectively sleeved on the two end portions of one lower dustproof piece, and have a total length along the sliding direction with the sliding module, which is 100.4% to 110% of the length of the corresponding lower dustproof piece, so that each lower dustproof piece can move along the sliding direction relative to the two end covers and the sliding module.

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