CN111938348A - A synchronized mute slide - Google Patents

Abstract

The invention discloses a synchronous mute slide rail, which comprises an outer frame of the slide rail, a middle frame of the slide rail is slidably arranged in the outer frame of the slide rail, and the middle frame of the slide rail is provided with first and third middle gears The first middle stop point is located at the end position of the middle frame of the sliding rail, the third middle stop point is located at the front end position of the middle frame of the sliding rail, and an outer frame elastic member is provided on the outer frame of the sliding rail; When the sliding rail middle frame is folded and closed, the third middle stop point is pressed against the outer side of the outer frame elastic member, and when the sliding rail middle frame is pulled out and opened, the first middle stop point is pressed against the outer frame elastically. the inside of the piece. A gear is rotatably fixed on the frame wall at the rear end of the inner frame of the slide rail, and the gear is engaged with the rack. The gear includes a tooth part and a connecting part of an integral structure, and the connecting part can be fixed with a synchronizing link to be connected with another synchronizing mute sliding rail. The slide rail of the invention has good synchronization and obvious noise reduction, simple structure, dual-purpose one piece, and convenient production.

Description

A synchronized mute slide

technical field

The invention relates to a slide rail, in particular to a mute slide rail with a synchronization function.

Background technique

When the installation width is relatively large, the use of the slide rail assembly often needs to cooperate with a synchronizing mechanism to ensure that the drawer mechanism can be opened or closed smoothly without jamming due to eccentricity. In addition, users have higher and higher requirements for the use of slide rails. In addition to the smooth opening and closing requirements, they also need the slide rail to have a mute function. There are many ways to achieve mute. Elastic parts are added everywhere in contact to avoid impact sound through soft contact. A set of synchronous and mute slide rail mechanism can be easily found in the market, but the applicant found that the performance of the mechanism with low price and low price is often not stable enough, while the mechanism with stable performance and comfortable use is more complicated, resulting in higher cost. How to achieve its mute and synchronization functions through the most streamlined mechanism has high practical value.

SUMMARY OF THE INVENTION

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

In order to solve the above-mentioned technical problems and realize the above-mentioned technical effects, the present invention is realized through the following technical solutions:

A synchronous mute slide rail includes a slide rail outer frame, a slide rail middle frame is slidably arranged in the slide rail outer frame, and the slide rail middle frame is provided with first and third mid-range points, and the slide rail middle frame is provided with first and third mid-range points. The first middle stop point is located at the end of the middle frame of the sliding rail, the third middle stop point is located at the front end of the middle frame of the sliding rail, and an outer frame elastic member is arranged on the outer frame of the sliding rail; the sliding rail When the middle frame is folded and closed, the third middle stop point is pressed against the outer side of the outer frame elastic member, and when the sliding rail middle frame is pulled out and opened, the first middle stop point is pressed 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 within the slide rail outer frame.

Further, an outer frame ball cage is arranged between the outer frame of the sliding rail and the middle frame of the sliding rail, and a second mid-range point is also arranged on the middle frame of the sliding rail, and the second mid-range point is located at the The rear end position of the middle frame of the sliding rail, the front end of the outer frame of the sliding rail is provided with a front stop point of the outer frame, and the outer frame ball cage is limited to the position formed by the front stop point of the outer frame and the second middle stop point. within the range; when the middle frame of the slide rail is pulled out, after the first middle point is pressed against the inner side of the outer frame elastic member, the tension is still maintained, then the second middle point hooks the outer frame On the outer side of the ball cage, the front end of the outer frame ball cage abuts against the front stop point of the outer frame.

Further, a sliding rail inner frame is slidably arranged in the sliding rail inner frame, the frame body of the sliding rail inner frame is provided with a first inner stop point, and the front end of the sliding rail inner frame is a second inner stopper. The front end of the middle frame of the sliding rail is provided with a middle frame elastic member; when the inner frame of the sliding rail is folded and closed, the second inner stop point is against the outer side of the middle frame elastic member, and the inner frame of the sliding rail is closed. When pulled out to open, the first inner stop point is pressed 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 inner frame of the slide rail at The stroke in the middle frame of the slide rail.

Further, an inner frame ball cage is arranged between the sliding rail middle frame and the sliding rail inner frame.

Further, a gear is rotatably fixed on the frame wall at the rear end of the inner frame of the slide rail.

Further, a boss structure is provided on the frame wall at the rear end of the inner frame of the slide rail, and the gear is rotatably fixed on the boss structure.

Further, the gear includes a tooth portion and a connecting portion of an integral structure, the connecting portion passes through the tooth portion, and the gear is rotatably fixed to the boss structure through a rivet passing through the through hole of the connecting portion. superior.

Further, the outer frame of the sliding rail is fixed on a sliding rail bracket, and the sliding rail bracket includes a vertical part and a bending part, and is composed of the inner frame of the sliding rail, the middle frame of the sliding rail and the sliding rail. The slide rail assembly formed by the outer frame of the rail is fixed on the vertical part through the outer frame of the slide rail, the bending part is folded to one side of the sliding rail assembly, and a rack is fixed on the bending part , the gear meshes with the rack.

Further, an elastic member mounting sheet is provided on the slide rail bracket, an elastic member through hole is defined on the frame wall of the outer frame of the slide rail, and the outer frame elastic member is fixed on the elastic member mounting sheet and passes through the elastic member mounting sheet. The through hole of the elastic piece protrudes from the frame wall of the outer frame of the slide rail.

Preferably, the cross-section of the connecting portion is a U-shaped structure, and the end surface of the U-shaped structure is provided with a through hole. A synchronizing link can be fixed on the connecting part to be connected with the other synchronizing mute sliding rail.

The beneficial effects of the present invention are:

1. Compared with the prior art, the synchronous mute slide rail of the present invention requires fewer parts, compact structure, simple and reliable process, and low cost. The synchronous mute slide rails of the present invention are used in pairs, and the sloshing amount of the gears after installation can be more effectively controlled through the connection of the synchronous connecting rods, thereby reducing the motion noise and poor synchronization of the gears caused by the sloshing.

2. When the slide rail of the present invention is pulled out and opened: firstly, the middle frame of the slide rail and the outer frame of the slide rail are in soft contact with the elastic member of the outer frame through the stop point, so as to realize the function of noise reduction and mute, and the hard stop point (second middle frame) There is a gap between the stop point and the front stop point of the outer frame and the outer frame ball cage), and then contact the hard stop point under the action of the impulse, and the hard stop point ensures that the slide rail does not derail; then, the inner frame of the slide rail and the The outer rail and the middle frame are in soft contact with the elastic piece of the middle frame through the stop point to realize the noise reduction and mute function.

3. When the sliding rail of the present invention is folded and closed: first, the inner frame of the sliding rail and the middle frame of the outer rail are in soft contact with the elastic member of the middle frame through the stop point, so as to realize the noise reduction and mute function; then, the middle frame of the sliding rail and the sliding rail The outer frame is first in soft contact with the outer frame elastic piece through the stop point to realize the noise reduction and mute function.

The above description is only an overview of the technical solution of the present invention. In order to understand the technical means of the present invention more clearly, and implement it according to the content of the description, the preferred embodiments of the present invention are described in detail below with the accompanying drawings. Specific embodiments of the present invention are given in detail by the following examples and the accompanying drawings.

Description of drawings

The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present 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 attached image:

FIG. 1 is a schematic structural diagram of the synchronous mute slide rail of the present invention in a folded and closed state.

FIG. 2 is a schematic structural diagram of the synchronous mute slide rail of the present invention when it is pulled out and opened.

FIG. 3 is an exploded view of the synchronous mute slide rail of the present invention.

FIG. 4 is a schematic assembly diagram of a part of the mechanism of the synchronous mute slide rail of the present invention.

FIG. 5 is an enlarged schematic view of the gear part of the synchronous mute slide rail of the present invention.

Detailed ways

The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. The descriptions herein are used to provide further understanding of the present invention and constitute a part of the present 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.

Referring to Figure 1, Figure 2, Figure 3 and Figure 4, a synchronous mute slide rail includes a slide rail outer frame 3, and a slide rail middle frame 5 is slidably provided in the slide rail outer frame 3. It is characterized in that: the sliding rail middle frame 5 is provided with first and third mid-range points 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 At the front end position of the sliding rail middle frame 5, an outer frame elastic member 9 is provided on the sliding rail outer frame 3; when the sliding rail middle frame 5 is folded and closed, the third middle stop point 503 abuts the outer frame On the outer side of the elastic member 9, when the sliding rail middle frame 5 is pulled out and opened, the first mid-range point 501 abuts the inner side of the outer frame elastic member 9; the first mid-range point and the third mid-range point are The distance between them is the stroke of the middle frame of the slide rail within the outer frame of the slide rail.

Further, an outer frame ball cage 4 is arranged between the outer frame 3 of the sliding rail and the middle frame 5 of the sliding rail, and a second mid-range point 502 is also arranged on the middle frame 5 of the sliding rail. The mid-range point 502 is located at the rear end of the middle frame 5 of the slide rail, the front end of the outer frame 3 of the slide rail is provided with a front stop point 301 of the outer frame, and the outer frame ball cage 4 is limited to the front stop of the outer frame within the interval formed by 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 the inner side of the outer frame elastic member 9, the pulling force is still If maintained, the second middle point 502 hooks the outer side surface of the outer frame ball cage 4 , and the front end of the outer frame ball cage 4 abuts against the outer frame front stop point 301 .

Further, a sliding rail inner frame 7 is slidably arranged in the sliding rail middle frame 5, and a first inner stop point 701 is arranged on the frame body of the sliding rail inner frame 7. The front end of the sliding rail inner frame 7 It is the second inner stop point 702, the front end of the sliding rail middle frame 5 is provided with a middle frame elastic member 10; when the sliding rail inner frame 7 is folded and closed, the second inner stop point 702 is pressed against the middle frame elasticity When the slide rail inner frame 7 is pulled out and opened, the first inner stop point 701 abuts the inner side of the middle frame elastic member 10; the first inner stop point and the second inner stop The distance between the points is the stroke of the inner frame of the sliding rail within the inner frame of the sliding rail.

Further, an inner frame ball cage 6 is disposed between the sliding rail middle frame 5 and the sliding rail inner frame 7 .

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

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

Further, as shown in FIG. 5 , the gear 8 includes a tooth portion 801 and a connecting portion 802 of an integral structure, the connecting portion 802 communicates with the tooth portion 801 , and the gear 8 passes through the tooth portion 801 through a rivet 11 . The through hole of the connecting portion 802 is rotatably fixed on the boss structure 703 .

Further, the slide rail outer frame 3 is fixed on a slide rail rail bracket 1, and the slide rail bracket 1 includes a vertical part 101 and a bent part 102, and the slide rail inner frame 7, the slide rail The slide rail assembly formed by the 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 folded to one side of the slide rail assembly , a rack 2 is fixed on the bending part 102 , and the gear 8 is engaged with the rack 2 .

Further, an elastic member mounting piece 103 is provided on the slide rail bracket 1, an elastic member through hole 302 is defined on the frame wall of the outer frame of the slide rail 3, and the outer frame elastic member 9 is fixed on the elastic member. The mounting piece 103 protrudes from the frame wall of the outer frame 3 of the slide rail through the through hole 302 of the elastic member.

Preferably, the cross section of the connecting portion 802 is a U-shaped structure, and a through hole 8021 is opened on the end surface of the U-shaped structure. A synchronizing link can be fixed on the connecting part to be connected with the other synchronizing mute sliding rail.

When the synchronous slide rail needs to be installed, it is generally because the installation width is relatively large, and the traditional gear is easy to fall off due to the clearance fit.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. The utility model provides a synchronous silence slide rail, includes a slide rail frame (3), slidable is provided with a slide rail center (5) in slide rail frame (3), its characterized in that: a first middle stop point (501) and a third middle stop point (503) are arranged on the sliding rail middle frame (5), the first middle stop point (501) is positioned at the middle end of the sliding rail middle frame (5), the third middle stop point (503) is positioned at the front end of the sliding rail middle frame (5), and an outer frame elastic part (9) is arranged on the sliding rail outer frame (3); when the sliding rail middle frame (5) is closed, the third middle stop point (503) is abutted against the outer side of the outer frame elastic part (9), and when the sliding rail middle frame (5) is pulled out and opened, the first middle stop point (501) is abutted against the inner side of the outer frame elastic part (9).

2. The synchronous silent slide rail of claim 1, wherein: an outer frame ball retainer (4) is arranged between the sliding rail outer frame (3) and the sliding rail middle frame (5), a second middle gear point (502) is further arranged on the sliding rail middle frame (5), the second middle gear point (502) is located at the rear end of the sliding rail middle frame (5), an outer frame front gear point (301) is arranged at the front end of the sliding rail outer frame (3), and the outer frame ball retainer (4) is limited in an interval formed by the outer frame front gear point (301) and the second middle gear point (502); when the sliding rail middle frame (5) is pulled out and opened, after the first middle stop point (501) is abutted against the inner side of the outer frame elastic part (9), the pulling force is still kept, then the second middle stop 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) is abutted against the outer frame front stop point (301).

3. The synchronous silent slide rail of claim 2, wherein: a sliding rail inner frame (7) is slidably arranged in the sliding rail middle frame (5), a first inner stop point (701) is arranged on the frame body of the sliding rail inner frame (7), a second inner stop point (702) is arranged at the front end of the sliding rail inner frame (7), and a middle frame elastic part (10) is arranged at the front end of the sliding rail middle frame (5); when the sliding rail inner frame (7) is closed, the second inner stop point (702) abuts against the outer side of the middle frame elastic part (10), and when the sliding 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 part (10).

4. The synchronous silent slide rail of claim 3, wherein: an inner frame ball retainer (6) is arranged between the slide rail middle frame (5) and the slide rail inner frame (7).

5. The synchronous silent slide rail of claim 3 or 4, wherein: a gear (8) is rotatably fixed on the frame wall at the rear end of the slide rail inner frame (7).

6. The synchronous silent slide rail of claim 5, wherein: a boss structure (703) is arranged 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).

7. The synchronous silent slide rail of claim 6, wherein: the gear (8) comprises a tooth part (801) and a connecting part (802) which are integrally formed, the connecting part (802) is communicated with the tooth part (801), and the gear (8) is rotatably fixed on the boss structure (703) through a rivet (11) penetrating through a through hole of the connecting part (802).

8. The synchronous silent slide rail of claim 7, wherein: the slide rail outer frame (3) is fixed on a slide rail support (1), the slide rail support (1) comprises a vertical part (101) and a bending part (102), a slide rail inner frame (7), a slide rail middle frame (5) and a slide rail assembly formed by the slide rail outer frame (3) are fixed on the vertical part (101), the bending part (102) is bent towards one side of the slide rail assembly, a rack (2) is fixed on the bending part (102), and a gear (8) is meshed on the rack (2).

9. The synchronous silent slide rail of claim 8, wherein: the slide rail support is characterized in that an elastic piece mounting piece (103) is arranged on the slide rail support (1), an elastic piece through hole (302) is formed in the frame wall of the slide rail outer frame (3), and the outer frame elastic piece (9) is fixed on the elastic piece mounting piece (103) and protrudes out of the frame wall of the slide rail outer frame (3) through the elastic piece through hole (302).

10. The synchronous silent slide rail of claim 7, wherein: the cross section of the connecting part (802) is of a U-shaped structure, and a through hole (8021) is formed in the end face of the U-shaped structure.

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