CN114439851B - Linear slide rail - Google Patents

Abstract

The utility model provides a linear slide includes dustproof subassembly, slide rail and slides and locates the slider of slide rail, dustproof subassembly includes two dust proof pieces, every the dust proof piece includes first section and second section, first section includes first end and for the second end of first end, the second end of first section is connected the first end of second section, first section and second section form the recess, the second section still includes at least one location portion, at least one location portion with the first end of first section is used for being fixed in linear slide rail to restrict the dust proof piece with linear slide rail's relative displacement.

Description

Linear slide

Technical field

The present invention relates to a dust-proof technology, in particular to a linear slide rail and its dust-proof assembly.

Background technique

The existing dust-proof assembly of the linear slide rail is shown in Figure 1, which mainly consists of two dust-proof sheets A2. To assemble the dust-proof sheet A2 on the linear slide rail, first place one end of each dust-proof sheet A2 into the groove A13 formed between the bottom surface A11 of the end cover and the side surface A12 of the end cover A1. Then press the other ends of the two dust-proof sheets A2 toward the bottom surface A11 of the end cover, so that the tooth-shaped structures on the other ends of the two dust-proof sheets A2 abut against each other. However, since the toothed structures of the two dust-proof sheets A2 only abut against each other and overlap each other, when the dust-proof sheets A2 come into contact with the slide rail, they are prone to collapse due to force. Moreover, the dust-proof sheet A2 is not fixed in the radial direction of the slide rail, so part of the dust-proof sheet A2 is easily caught between the slide rail and the slide block, causing abnormal resistance of the linear slide rail.

Contents of the invention

Therefore, the main purpose of the present invention is to provide a linear slide rail and its dust-proof assembly to avoid abnormal resistance caused by the dust-proof assembly in some dust-proof assemblies falling between the slide block and the slide rail.

According to an embodiment of the present invention, a dust-proof assembly of a linear slide rail is provided. The linear slide rail includes a slide rail and a slide block sliding on the slide rail. The dust-proof assembly includes: two dust-proof sheets. , each of the dust-proof sheets includes a first section and a second section, the first section includes a first end and a second end opposite to the first end, and the second section includes a One end and a second end opposite to the first end, the second end of the first section is connected to the first end of the second section, the first section and the The second section forms a groove, and the second section further includes at least one positioning portion, and the at least one positioning portion and the first end of the first section are used to be fixed to the linear slide rail. , to limit the relative displacement of the dust-proof sheet and the linear slide rail.

According to an embodiment of the present invention, a linear slide rail is provided, including: a slide block including a first accommodation space; and two end caps respectively arranged on opposite sides of the slide block, each end The cover includes an end cap bottom surface and two opposite end cap side surfaces, the end cap bottom surface and the two end cap side surfaces form a second accommodation space, and the second accommodation space communicates with the first accommodation space, The bottom surface of the end cover includes a first limiting portion, and each side surface of the end cover includes at least a second limiting portion; a slide rail is used to pass through the first accommodation space and the second accommodation space. accommodation space; and the above-mentioned dust-proof assembly, the two dust-proof sheets are used to be separately arranged in the first accommodation space and the second accommodation space along the central axis of the linear slide rail, each The first end of the first section of the dust-proof sheet is used to resist the first limiting portion on the bottom surface of the end cover, and the second area of each dust-proof sheet The at least one positioning portion of the segment corresponds to the at least one second limiting portion on the side surface of the end cap, and is used to engage with the at least one second limiting portion, and the positioning portion is shaped to fit The corresponding second limiting portion.

Therefore, the linear slide rail and its dust-proof assembly provided by the present invention can limit the displacement of the dust-proof sheet by using the first end of the first section of the dust-proof sheet and the positioning portion of the second section to avoid Part of the dust-proof sheet falls between the slider and the slide rail, causing abnormal resistance.

Description of the drawings

Figure 1 is a schematic diagram of the dust-proof assembly of the existing linear slide rail;

Figure 2 is a schematic diagram of the appearance of a linear slide rail according to an embodiment of the present invention;

Figure 3 is an exploded schematic diagram of the linear slide rail in Figure 2 drawn according to an embodiment;

Figure 4 is a side view of the linear slide rail after removing the metal scraper of the end cover according to an embodiment of the present invention, showing the configuration relationship of the end cover, dust-proof assembly, slide block and slide rail;

Figure 5 is a partial enlarged view of the linear slide rail of Figure 4 drawn according to an embodiment of the present invention;

Figure 6 is a schematic diagram of installing a dust-proof component on a linear slide rail according to an embodiment of the present invention;

FIG. 7 is a partially enlarged view of the cross-sectional view of the linear slide rail taken along section line 7-7 of FIG. 2 according to an embodiment of the present invention, showing that the dust-proof assembly installed in the linear slide rail abuts against the scraping oil. parts, and the oil scraping parts are set inside the end cover;

Figure 8 is a partial enlarged view of the linear slide rail of Figure 4 drawn according to another embodiment of the present invention, showing a schematic diagram of installing another dust-proof component on the linear slide rail;

FIG. 9 is a partial enlarged view of the linear slide rail of FIG. 4 drawn according to another embodiment of the present invention, showing a schematic diagram of yet another dust-proof component located in another linear slide rail; and

FIG. 10 is a partially enlarged view of the cross-sectional view of the linear slide rail taken along the section line 7-7 of FIG. 2 according to another embodiment of the present invention, showing that the dust-proof assembly installed in the linear slide rail abuts against the scraper. Oil parts, and oil scraping parts are arranged outside the end cover.

Explanation of symbols in the drawings:

10:Slider

20,20’,80:end cap

21: Bottom surface of end cover

211: The first limiting part on the bottom surface of the end cover

2111: Support section of the first limiting part

2112: Extension section of the first limiting part

22,82: End cover side surface

221,821: Second limit part

30:Slide rail

40,40’: Oil scraper

50,60,70: Dust-proof sheet

51,61,71: The first section of the dustproof sheet

511,611: the first end of the first section

512,612: The second end of the first section

52,72: The second section of the dustproof sheet

521,721: The first end of the second section

522,722: The second end of the second section

523,723: Positioning part of the second section

53,73: The third section of the dustproof sheet

613,713: The bend of the first section

724:Extended section

74: The fourth section of the dustproof sheet

54,76:Outer surface of dust-proof sheet

55: Inner surface of dustproof sheet

A1: End cap

A11: Bottom surface of end cover

A12: End cover side surface

A13: Groove

A2: Dust-proof sheet

D1: first axis

D2: Second axis

H1: First accommodation space

H2: Second accommodation space

H3: The third accommodation space

P: central axis of linear slide rail

R1,R2,R3,R31,R32,R4,R5,H1: Groove

Detailed ways

The technical solution of the present invention will be clearly and completely described below. Obviously, the described embodiments are some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without any creative work fall within the scope of protection of the present invention.

Please refer to FIGS. 2 to 7 . According to an embodiment of the present invention, a linear slide rail mainly includes a slider 10 , two end caps 20 , a slide rail 30 and two oil scrapers 40 . The slider 10 includes a first accommodation space H1. The two end covers 20 are respectively located at opposite ends of the slide block 10 along the central axis P of the linear slide rail. Each end cap 20 includes an end cap bottom surface 21 and two opposite end cap side surfaces 22. The two end cap side surfaces 22 are respectively located on opposite sides of the end cap bottom surface 21, and the end cap bottom surface 21 and the two end cap side surfaces 22 form a A second accommodation space H2 can be connected to the first accommodation space H1. The two oil scraping parts 40 are respectively arranged on the two end caps 20 . Each oil scraper 40 includes a third accommodation space H3 that can communicate with the first accommodation space H1 and the corresponding second accommodation space H2. Therefore, the slide rail 30 can be disposed along the central axis P in the first accommodation space H1 of the slider 10 , the second accommodation space H2 of the two end covers 20 , and the third accommodation space H3 of the two oil scrapers 40 .

The linear slide rail of this embodiment further includes a dust-proof assembly. The dust-proof assembly includes two identical dust-proof sheets 50 , which are disposed between the slide block 10 and the slide rail 30 . The dust-proof sheet 50 may be a strip-shaped structure of equal cross-sectional area made by, for example, plastic injection molding to reduce manufacturing costs and avoid injection molding deformation during manufacturing. Each dust-proof sheet 50 includes a first section 51 and a second section 52 . The first section 51 includes a first end 511 and a second end 512 opposite to the first end 511 , and the second section 52 includes a first end 521 and a second end 522 opposite to the first end 521 . The second end 512 of the first section 51 is connected to the first end 521 of the second section 52 . The first end 511 of the first section 51 is used to be fixed to the end cover 20 of the linear slide rail to limit the relative displacement of the dust-proof sheet 50 and the linear slide rail.

The first section 51 and the second section 52 can match the shape of the end cover side surface 22 of the end cover 20 to form a groove R1, and the groove R1 is used to accommodate the top of the slide rail 30, as shown in FIG. 5 . Specifically, the first section 51 extends along the first axis D1 and is flat-shaped, and at least part of the second section 52 extends along the second axis D2. The first axis D1 and the second axis D2 are substantially perpendicular to the central axis P of the linear slide rail, and the first axis D1 is not parallel to the second axis D2. For example, the first axis D1 is substantially perpendicular to the second axis D2.

The second section 52 further includes at least one positioning portion 523. The positioning portion 523 is used to be fixed to the end cover 20 of the linear slide rail to limit the relative displacement of the dust sheet 50 and the linear slide rail. In the embodiment of FIG. 5 , the second section 52 includes two positioning portions 523 . The two positioning parts 523 are respectively located at the first end 521 and the second end 522 of the second section 52 .

In addition, the end cap 20 includes two first limiting portions 211 on the bottom surface 21 of the end cap, and the two first limiting portions 211 can be symmetrically arranged. The end cap 20 includes at least one second limiting portion 221 on each end cap side surface 22 , wherein the second limiting portion 221 on one end cap side surface 22 and the second limiting portion 221 on the other end cap side surface 22 The portion 221 may be configured symmetrically. The first limiting portion 211 can be protruded from the bottom surface 21 of the end cover. The first limiting part 211 may, for example, include a support section 2111 extending along the first axis D1 and an extension section 2112 extending along the second axis D2. The support section 2111 and the extension section 2112 form a groove H1, but the invention is not limited thereto. . The number, shape and position of the second limiting parts 221 can be designed according to the number, shape and position of the positioning parts 523 on the dust-proof sheet 50 . Taking the embodiment of FIG. 6 as an example, when the number of positioning portions 523 on the dust-proof sheet 50 is two, the positioning portions 523 are recessed from the outer surface 54 of the second section 52 of the dust-proof sheet 50, and the positioning portions are 523 are respectively located at the first end 521 and the second end 522 of the second section 52, the number of the second limiting parts 221 on the side surface 22 of the end cover is also two, and the second limiting part 221 is formed by the end cover. The side surface 22 is convex, and the position of the second limiting portion 221 on the side surface 22 of the end cover also corresponds to the position of the positioning portion 523 on the second section 52 when the dust-proof sheet 50 is inserted into the end cover 20 .

The dust-proof component can be assembled on the linear slide rail after the end cover 20 is assembled on the slider 10 . When installing the dust-proof assembly on the linear slide rail, as shown in Figures 3 and 6, two dust-proof sheets 50 can be placed into the first accommodation space H1 and the second accommodation space along the central axis P of the linear slide rail. H2. Moreover, the two dust-proof sheets 50 are arranged separately from each other and fixed on the two end caps 20 . Specifically, the second section 52 of the dust-proof sheet 50 can be first supported against the side surface 22 of the end cover along the second axis D2, and the second section 52 of the dust-proof sheet 50 and the end cover of the end cover 20 can be The side surface 22 is positioned with each other through the positioning portion 523 on the second section 52 and the second limiting portion 221 on the side surface 22 of the end cover. For example, the positioning portion 523 and the second limiting portion 221 engage with each other to limit the second limiting portion. Relative displacement of the section 52 and the end cap side surface 22 along the first axis D1. Then, the first end 511 of the first section 51 of the dust-proof sheet 50 is pressed into the groove H1 of the first limiting part 211 along the first axis D1, so that the first end 511 of the first section 51 is pressed against The first limiting portion 211 on the bottom surface 21 of the end cover. Specifically, the end surface of the first end 511 of the first section 51 abuts the support section 2111 of the first limiting part 211 and is relative to the outer surface 54 and located within the first end 511 of the first section 51 The surface 55 contacts the extended section 2112 of the first limiting part 211 , so that the first end 511 of the first section 51 is supported by the first limiting part 211 . Therefore, the relative displacement of the first section 51 and the bottom surface of the end cover 21 along the first axis D1 and the second axis D2 is restricted. In this way, the dust-proof sheet can be prevented from dislocating during the operation of the linear slide rail, thereby preventing dust-proof failure and preventing part of the dust-proof sheet from sinking between the slide rail and the slider, causing an increase in the resistance of the linear slide rail.

When the two dust-proof sheets 50 are fixed to the end cover 20, the opposite ends of each dust-proof sheet 50 along the central axis P respectively abut against the two oil scrapers 40, as shown in Figure 7, and the two dust-proof sheets 50 are The linear slide rail can be configured symmetrically, as shown in Figure 4. In FIG. 7 , the oil scraper 40 is disposed inside the end cover 20 . When the end cover 20 is assembled on the slider 10 , the oil scraper 40 cannot be visually observed.

In order to more easily fix the first end 511 of the first section 51 to the first limiting portion 211 of the bottom surface 21 of the end cover, in this embodiment or other embodiments, an extension section of the first limiting portion 211 can be A chamfer 212 is provided on 2112, as shown in Figure 6.

In this embodiment or other embodiments, each dust-proof sheet 50 may further include a third section 53 connected to the second end 522 of the second section 52 . The second section 52 and the third section 53 may match the shape of the end cap side surface 22 of the end cap 20 to form the groove R2, as shown in FIG. 5 . Specifically, the third section 53 extends from the second section 52 along the first axis D1 and can contact the slide rail 30 . Since the relative displacement of the dust-proof sheet 50 and the end cover 20 is limited, the relative position of the third section 53 and the slide rail 30 remains fixed. Therefore, when the third section 53 contacts the slide rail 30, not only can the linear slide rail be improved The degree of sealing ensures the dust-proof effect, and can also avoid abnormal linear slide rail resistance caused by sinking between the slide block 10 and the slide rail 30 when deformed due to force.

Although the above embodiment is explained by taking the first section 51 of the dust-proof sheet 50 in FIG. 5 as a flat plate and the first end 521 and the second end 522 of the second section 52 are respectively provided with a positioning portion 523 as an example, The present invention is not limited to this. The following examples illustrate other implementation aspects.

Referring to FIG. 8 , a dust-proof assembly provided by the present invention according to another embodiment includes two dust-proof sheets 60 . The dust sheet 60 can be installed on the end cap 20 shown in FIG. 5 . The dust-proof sheet 60 is similar to the dust-proof sheet 50 shown in FIG. 5 . However, the first section 61 of the dust-proof sheet 60 may further include a bent portion 613 between the first end 611 and the second end 612 . This makes it easier for the first end 611 of the first section 61 to be fixed on the first limiting part 211 of the end cover 20 , and even to be pressed against the first limiting part 211 .

Alternatively, please refer to FIG. 9 . According to yet another embodiment of the present invention, a dust-proof assembly includes two dust-proof sheets 70 . The dust-proof sheet 70 includes a first section 71 and a second section 72 . The first section 71 and the second section 72 form a groove R3. The first section 71 is similar to the first section 61 in FIG. 8 , so the relevant description of the first section 71 can be referred to the relevant description of the first section 61 and will not be described again here. At least part of the second section 72 extends along the second axis D2. The second section 72 includes a positioning portion 723 . The positioning portion 723 may be recessed on the outer surface 76 of the second section 72 and located between the first end 721 and the second end 722 of the second section 72 .

In order to correspond to the positioning portion 723 of the second section 72 of the dust-proof sheet 70, a second limiting portion 821 can be protruded on the end cover side surface 82 of the end cover 80, so that the positioning portion 723 of the dust-proof sheet 70 is aligned with the second positioning portion 723 of the dust-proof sheet 70. The two limiting portions 821 are positioned with each other, such as engaging with each other, to limit the mutual displacement of the second section 72 of the dust-proof sheet 70 and the end cover side surface 82 of the end cover 80 along the second axis D2.

In this or other embodiments, the dust sheet 70 may further include a third section 73 . The third section 73 connects the second section 72 which is located between the first section 71 and the third section 73 . The second section 72 and the third section 73 may match the shape of the end cap side surface 82 of the end cap 80 to form the groove R4. As a result, the sealing degree of the linear slide rail can be improved.

In this or other embodiments, the dust sheet 70 may further include a fourth section 74 . The fourth section 74 connects the third section 73 which is located between the second section 72 and the fourth section 74 . The third section 73 and the fourth section 74 may match the shape of the end cap side surface 82 of the end cap 80 to form the groove R5. As a result, the sealing degree of the linear slide rail can be improved.

In this or other embodiments, the first end 721 of the second section 72 of the dust sheet 70 may be configured as an extension section 724 . One of the opposite ends of the extension section 724 is connected to the first section 71 , and the other is the second section 72 . The extension section 724 and the first section 71 form a groove R31 , and the extension section 724 and the remainder of the second section 72 form another groove 32 .

Although the above embodiments are all described with the oil scraper 40 disposed inside the end cover 20 in FIG. 7 as an example, the invention is not limited to this example; in other embodiments, as shown in FIG. 10 , the oil scraper 40 is disposed inside the end cover 20 40' can be disposed outside the end cover 20' and located on the side of the end cover 20' away from the slider 10. Therefore, after the end cap 20' is assembled on the slider 10, the oil scraper 40' can still be visually observed.

Although in the above embodiments, the positioning portion is recessed in the second section as an example, the invention is not limited to this example, as long as the shape of the positioning portion on the dust-proof sheet can be consistent with the corresponding side surface of the end cover. The shapes of the corresponding second limiting parts only need to match. For example, at least one of the positioning parts is protrudingly provided on the second section, and the corresponding second limiting part is recessed on the side surface of the end cover.

To sum up, the above-mentioned embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, modifications, equivalent substitutions, etc. may be made within the spirit and principles of the present invention. Improvements, etc., should be included in the protection scope of the present invention.

Claims (9)

1. A linear slide comprising:

the sliding block comprises a first accommodating space;

the two end covers are arranged on two opposite sides of the sliding block respectively, each end cover comprises an end cover bottom surface and two opposite end cover side surfaces, a second accommodating space is formed between the end cover bottom surface and the two end cover side surfaces, the second accommodating space is communicated with the first accommodating space, the end cover bottom surface comprises a first limiting part, and each end cover side surface comprises at least one second limiting part;

the sliding rail is used for penetrating through the first accommodating space and the second accommodating space; and

the two dustproof sheets are arranged between the sliding rail and the sliding block and used for being arranged in the first accommodating space and the second accommodating space along the central axis of the linear sliding rail, each dustproof sheet comprises a first section and a second section connected with the first section, the first section comprises a first end and a second end opposite to the first end, the second end of the first section is connected with the first end of the second section, the first section and the second section form a groove used for accommodating the top of the sliding rail, the second section further comprises at least one positioning part, the at least one positioning part and the first end of the first section are used for being fixed on the sliding block so as to limit the relative displacement of the dustproof sheet and the sliding block, the first end of the first section is used for propping against the first limiting part of the bottom surface of the end cover, and the at least one positioning part of the second section is clamped with the at least one side of the first end cover respectively.

2. The linear slide of claim 1, wherein the first section extends along a first axis and at least a portion of the second section extends along a second axis, the first axis being non-parallel to the second axis.

3. The linear slide of claim 1, wherein the at least one detent of the dust tab is located between the first end and the second end of the second section.

4. The linear slide of claim 1, wherein the number of the at least one positioning portion of the dust-proof sheet is plural, the plurality of positioning portions being located at the first end and the second end of the second section, respectively.

5. The linear slide of claim 1, wherein the first section further comprises a bend.

6. The linear guide of claim 1, wherein at least one of the positioning portions is recessed in the second section.

7. The linear guide of claim 1, wherein at least one of the positioning portions is protruding from the second section.

8. The linear slide of claim 1, wherein each dust tab further comprises a third section connecting the second ends of the second sections, the second and third sections forming another groove.

9. The linear guide rail of claim 1, further comprising two oil scraping members disposed on the two end caps, wherein each of the dust-proof sheets abuts against the two oil scraping members along opposite ends of the central shaft.