Synchronous silent slide rail

Abstract

The present invention discloses a synchronous silent slide rail, comprising a slide rail outer frame, a slide rail middle frame slidably arranged in the slide rail outer frame, a first and a third mid-range points arranged on the slide rail middle frame, the first mid-range point is located at the middle position of the slide rail middle frame, the third mid-range point is located at the front end position of the slide rail middle frame, and an outer frame elastic member is arranged on the slide rail outer frame; when the slide rail middle frame is folded and closed, the third mid-range point abuts against the outer side of the outer frame elastic member, and when the slide rail middle frame is pulled out and opened, the first mid-range point abuts against the inner side of the outer frame elastic member. A gear is rotatably fixed on the frame wall at the rear end position of the slide rail inner frame, and the gear is meshed on the rack. The gear comprises a tooth portion and a connecting portion of an integrated structure, and a synchronous connecting rod can be fixed on the connecting portion to connect with another synchronous silent slide rail. The slide rail of the present invention has good synchronization and obvious noise reduction, simple structure, dual-purpose, and is easy to produce.

Description

Technical Field

[0001] The invention relates to a slide rail, in particular to a silent slide rail with a synchronization function. Background Art

[0002] In situations where the installation width is relatively large, the use of the slide rail assembly often needs to be coordinated with a synchronization mechanism to ensure that the drawer mechanism can be opened or closed smoothly without jamming due to eccentricity. In addition, users have increasingly higher requirements for the use of slide rails. In addition to the requirement for smooth opening and closing, the slide rails are also required to have a silent function. There are many ways to achieve silence. The most common way is to add elastic parts to the hard contacts of each slide rail frame to avoid impact sounds through soft contact. A set of synchronized and silent slide rail mechanisms can be easily found on the market, but the applicant has found that cheap mechanisms often have unstable performance, while those with stable performance and comfortable use have more complex mechanisms, resulting in higher costs. How to achieve its silent and synchronized functions through the most streamlined mechanism has high practical value. Summary of the invention

[0003] In order to make up for the deficiencies in the prior art, the present invention provides a synchronous silent slide rail, which can greatly improve production capacity and reduce production costs by assembling prefabricated parts, and the wiring harness can be disassembled for maintenance.

[0004] In order to solve the above technical problems and achieve the above technical effects, the present invention is implemented through the following technical solutions:

[0005] A synchronous silent slide rail comprises a slide rail outer frame, a slide rail middle frame slidably arranged in the slide rail outer frame, a first and a third mid-range points are arranged on the slide rail middle frame, the first mid-range point is located at the middle position of the slide rail middle frame, the third mid-range point is located at the front end position of the slide rail middle frame, and an outer frame elastic member is arranged on the slide rail outer frame; when the slide rail middle frame is retracted and closed, the third mid-range point abuts against the outer side of the outer frame elastic member, and when the slide rail middle frame is pulled out and opened, the first mid-range point abuts against the inner side of the outer frame elastic member; the distance between the first mid-range point and the third mid-range point is the stroke of the slide rail middle frame in the slide rail outer frame.

[0006] Furthermore, an outer frame ball retainer is arranged between the slide rail outer frame and the slide rail middle frame, and a second mid-range point is also arranged on the slide rail middle frame, the second mid-range point is located at the rear end of the slide rail middle frame, and an outer frame front stop point is arranged at the front end of the slide rail outer frame, and the outer frame ball retainer is limited within the interval formed by the outer frame front stop point and the second mid-range point; when the slide rail middle frame is pulled out and opened, after the first mid-range point abuts against the inner side of the outer frame elastic part, the pulling force is still maintained, then the second mid-range point hooks the outer side surface of the outer frame ball retainer, and the front end of the outer frame ball retainer abuts against the outer frame front stop point.

[0007] Furthermore, a slide rail inner frame is slidably arranged in the slide rail middle frame, a first inner stop point is arranged on the frame body of the slide rail inner frame, the front end of the slide rail inner frame is a second inner stop point, and a middle frame elastic member is arranged at the front end of the slide rail middle frame; when the slide rail inner frame is retracted and closed, the second inner stop point abuts against the outer side of the middle frame elastic member, and when the slide rail inner frame is pulled out and opened, the first inner stop point abuts against the inner side of the middle frame elastic member; the distance between the first inner stop point and the second inner stop point is the stroke of the slide rail inner frame in the slide rail middle frame.

[0008] Furthermore, an inner frame ball retainer is provided between the slide rail middle frame and the slide rail inner frame.

[0009] Furthermore, a gear is rotatably fixed on the frame wall at the rear end of the inner frame of the slide rail.

[0010] Furthermore, a boss structure is provided on the frame wall at the rear end position of the inner frame of the slide rail, and the gear is rotatably fixed on the boss structure.

[0011] Furthermore, the gear includes a tooth portion and a connecting portion of an integrated structure, the connecting portion is connected to the tooth portion, and the gear is rotatably fixed on the boss structure by a rivet passing through a through hole of the connecting portion.

[0012] Furthermore, the slide rail outer frame is fixed on a slide rail bracket, the slide rail bracket includes a vertical part and a bent part, the slide rail assembly composed of the slide rail inner frame, the slide rail middle frame and the slide rail outer frame is fixed to the vertical part through the slide rail outer frame, the bent part is bent to one side of the slide rail assembly, a rack is fixed on the bent part, and the gear is meshed with the rack.

[0013] Furthermore, an elastic member mounting plate is provided on the slide rail bracket, an elastic member through hole is provided on the frame wall of the slide rail outer frame, and the outer frame elastic member is fixed on the elastic member mounting plate and protrudes out of the frame wall of the slide rail outer frame through the elastic member through hole.

[0014] Preferably, the cross section of the connecting portion is a U-shaped structure, and a through hole is provided on the end surface of the U-shaped structure. A synchronous connecting rod can be fixed on the connecting portion to connect with another synchronous silent slide rail.

[0015] The beneficial effects of the present invention are:

[0016] 1. Compared with the prior art, the synchronous silent slide rail of the present invention requires fewer parts, has a compact structure, a simple and reliable process, and a low cost. The synchronous silent slide rails of the present invention are used in pairs, and the shaking amount of the gear after installation can be more effectively controlled through the connection of the synchronous connecting rod, thereby reducing the movement noise caused by the shaking of the gear and the problem of poor synchronization.

[0017] 2. When the slide rail of the present invention is pulled out and opened: first, the middle frame of the slide rail and the outer frame of the slide rail are in soft contact with the elastic part of the outer frame through the stop points to achieve the noise reduction and silencing function, and a gap is left between the hard stop points (the second middle stop point and the front stop point of the outer frame and the outer frame ball retaining frame), and then the hard stop points are contacted under the action of the impact force. The hard stop points ensure that the slide rail does not derail; then, the inner frame of the slide rail and the middle frame of the outer rail are in soft contact with the elastic part of the middle frame through the stop points to achieve the noise reduction and silencing function.

[0018] 3. When the slide rail of the present invention is folded and closed: first, the inner frame of the slide rail and the middle frame of the outer rail are in soft contact with the elastic part of the middle frame through the stop point to achieve the noise reduction and silencing function; then, the middle frame of the slide rail and the outer frame of the slide rail are in soft contact with the elastic part of the outer frame through the stop point to achieve the noise reduction and silencing function.

[0019] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. The specific implementation of the present invention is given in detail by the following embodiments and their accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0021] Figure 1 It is a schematic diagram of the structure of the synchronous silent slide rail of the present invention when it is folded and closed.

[0022] Figure 2 It is a schematic diagram of the structure of the synchronous silent slide rail of the present invention when it is pulled out and opened.

[0023] Figure 3 It is an exploded view of the synchronous silent slide rail of the present invention.

[0024] Figure 4It is a schematic diagram of the assembly of part of the mechanisms of the synchronous silent slide rail of the present invention.

[0025] Figure 5 It is an enlarged schematic diagram of the gear part of the synchronous silent slide rail of the present invention. DETAILED DESCRIPTION

[0026] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. The descriptions herein are used to provide a further understanding of the present invention and constitute a part of this application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0027] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a synchronous silent slide rail comprises a slide rail outer frame 3, a slide rail middle frame 5 is slidably arranged in the slide rail outer frame 3, and is characterized in that: the slide rail middle frame 5 is provided with a first and a third mid-range points 501, 503, the first mid-range point 501 is located at the middle end position of the slide rail middle frame 5, and the third mid-range point 503 is located at the front end position of the slide rail middle frame 5, and an outer frame elastic member 9 is arranged on the slide rail outer frame 3; when the slide rail middle frame 5 is retracted and closed, the third mid-range point 503 abuts against the outer side of the outer frame elastic member 9, and when the slide rail middle frame 5 is pulled out and opened, the first mid-range point 501 abuts against the inner side of the outer frame elastic member 9; the distance between the first mid-range point and the third mid-range point is the stroke of the slide rail middle frame in the slide rail outer frame.

[0028] Furthermore, an outer frame ball retainer 4 is arranged between the slide rail outer frame 3 and the slide rail middle frame 5, and a second mid-range point 502 is also arranged on the slide rail middle frame 5, and the second mid-range point 502 is located at the rear end of the slide rail middle frame 5, and an outer frame front stop point 301 is arranged at the front end of the slide rail outer frame 3, and the outer frame ball retainer 4 is limited within the interval formed by the outer frame front stop point 301 and the second mid-range point 502; when the slide rail middle frame 5 is pulled out and opened, after the first mid-range point 501 abuts against the inner side of the outer frame elastic part 9, the pulling force is still maintained, then the second mid-range point 502 hooks the outer side surface of the outer frame ball retainer 4, and the front end of the outer frame ball retainer 4 abuts against the outer frame front stop point 301.

[0029] Furthermore, a slide rail inner frame 7 is slidably provided in the slide rail middle frame 5, a first inner stop point 701 is provided on the frame body of the slide rail inner frame 7, the front end of the slide rail inner frame 7 is a second inner stop point 702, and a middle frame elastic member 10 is provided at the front end of the slide rail middle frame 5; when the slide rail inner frame 7 is retracted and closed, the second inner stop point 702 abuts against the outer side of the middle frame elastic member 10, and when the slide rail inner frame 7 is pulled out and opened, the first inner stop point 701 abuts against the inner side of the middle frame elastic member 10; the distance between the first inner stop point and the second inner stop point is the stroke of the slide rail inner frame in the slide rail middle frame.

[0030] Furthermore, an inner frame ball retainer 6 is provided between the slide rail middle frame 5 and the slide rail inner frame 7 .

[0031] Furthermore, a gear 8 is rotatably fixed on the frame wall at the rear end of the slide rail inner frame 7 .

[0032] Furthermore, a boss structure 703 is provided on the frame wall at the rear end of the slide rail inner frame 7 , and the gear 8 is rotatably fixed on the boss structure 703 .

[0033] For further information, see Figure 5 As shown, the gear 8 includes a tooth portion 801 and a connecting portion 802 of an integrated structure, the connecting portion 802 is connected to the tooth portion 801 , and the gear 8 is rotatably fixed on the boss structure 703 by a rivet 11 passing through the through hole of the connecting portion 802 .

[0034] Furthermore, the slide rail outer frame 3 is fixed on a slide rail bracket 1, and the slide rail bracket 1 includes a vertical part 101 and a bent part 102. The slide rail assembly composed of the slide rail inner frame 7, the slide rail middle frame 5 and the slide rail outer frame 3 is fixed on the vertical part 101 through the slide rail outer frame 3, and the bent part 102 is bent to one side of the slide rail assembly. A rack 2 is fixed on the bent part 102, and the gear 8 is meshed on the rack 2.

[0035] Furthermore, an elastic member mounting plate 103 is provided on the slide rail bracket 1, an elastic member through hole 302 is opened on the frame wall of the slide rail outer frame 3, and the outer frame elastic member 9 is fixed on the elastic member mounting plate 103 and protrudes from the frame wall of the slide rail outer frame 3 through the elastic member through hole 302.

[0036] Preferably, the cross section of the connecting portion 802 is a U-shaped structure, and the end surface of the U-shaped structure is provided with a through hole 8021. The connecting portion can be fixed with a synchronous connecting rod to connect with another synchronous silent slide rail.

[0037] The situation where a synchronous slide rail needs to be installed is generally because the installation width is relatively large. Traditional gears are easily removed due to clearance fit. The synchronous slide rail structure formed by the synchronous silent slide rail of this embodiment can completely avoid this phenomenon.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A synchronous silent slide rail, comprising a slide rail outer frame (3), wherein a slide rail middle frame (5) is slidably arranged inside the slide rail outer frame (3), characterized in that: The slide rail middle frame (5) is provided with a first and a third mid-range point (501, 503), the first mid-range point (501) is located at the middle end of the slide rail middle frame (5), and the third mid-range point (503) is located at the front end of the slide rail middle frame (5), and an outer frame elastic member (9) is provided on the slide rail outer frame (3); when the slide rail middle frame (5) is folded and closed, the third mid-range point (503) abuts against the outer side of the outer frame elastic member (9), and when the slide rail middle frame (5) is pulled out and opened, the first mid-range point (501) abuts against the inner side of the outer frame elastic member (9); An outer frame ball retainer (4) is arranged between the slide rail outer frame (3) and the slide rail middle frame (5), and a second mid-range point (502) is also arranged on the slide rail middle frame (5), the second mid-range point (502) is located at the rear end of the slide rail middle frame (5), and an outer frame front stop point (301) is arranged at the front end of the slide rail outer frame (3), and the outer frame ball retainer (4) is limited within the interval formed by the outer frame front stop point (301) and the second mid-range point (502); when the slide rail middle frame (5) is pulled out and opened, after the first mid-range point (501) abuts against the inner side of the outer frame elastic member (9), if the pulling force is still maintained, the second mid-range point (502) hooks the outer side surface of the outer frame ball retainer (4), and the front end of the outer frame ball retainer (4) abuts against the outer frame front stop point (301).

2. The synchronous silent slide rail according to claim 1, characterized in that: A slide rail inner frame (7) is slidably arranged in the slide rail middle frame (5); a first inner stop point (701) is arranged on the frame body of the slide rail inner frame (7); the front end of the slide rail inner frame (7) is a second inner stop point (702); and a middle frame elastic member (10) is arranged at the front end of the slide rail middle frame (5); when the slide rail inner frame (7) is retracted and closed, the second inner stop point (702) abuts against the outer side of the middle frame elastic member (10); when the slide rail inner frame (7) is pulled out and opened, the first inner stop point (701) abuts against the inner side of the middle frame elastic member (10).

3. The synchronous silent slide rail according to claim 2, characterized in that: An inner frame ball retainer (6) is provided between the slide rail middle frame (5) and the slide rail inner frame (7).

4. The synchronous silent slide rail according to claim 2 or 3, characterized in that: A gear (8) is rotatably fixed on the frame wall at the rear end of the slide rail inner frame (7).

5. The synchronous silent slide rail according to claim 4, characterized in that: A boss structure (703) is provided on the frame wall at the rear end of the slide rail inner frame (7), and the gear (8) is rotatably fixed on the boss structure (703).

6. The synchronous silent slide rail according to claim 5, characterized in that: The gear (8) comprises a tooth portion (801) and a connecting portion (802) of an integral structure, the connecting portion (802) being connected to the tooth portion (801), and the gear (8) is rotatably fixed on the boss structure (703) via a rivet (11) passing through a through hole of the connecting portion (802).

7. The synchronous silent slide rail according to claim 6, characterized in that: The slide rail outer frame (3) is fixed on a slide rail bracket (1), and the slide rail bracket (1) comprises a vertical portion (101) and a bent portion (102). The slide rail assembly consisting of the slide rail inner frame (7), the slide rail middle frame (5) and the slide rail outer frame (3) is fixed on the vertical portion (101) via the slide rail outer frame (3), and the bent portion (102) is bent toward one side of the slide rail assembly. A rack (2) is fixed on the bent portion (102), and the gear (8) is meshed with the rack (2).

8. The synchronous silent slide rail according to claim 7, characterized in that: An elastic member mounting plate (103) is provided on the slide rail bracket (1), an elastic member through hole (302) is provided on the frame wall of the slide rail outer frame (3), and the outer frame elastic member (9) is fixed on the elastic member mounting plate (103) and protrudes out of the frame wall of the slide rail outer frame (3) through the elastic member through hole (302).

9. The synchronous silent slide rail according to claim 8, characterized in that: The cross-section of the connecting portion (802) is a U-shaped structure, and a through hole (8021) is provided on the end surface of the U-shaped structure.

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