Supporting structure for preventing inner frame from sinking for sliding rail

Abstract

The inner frame sinking prevention supporting structure for the sliding rail comprises an outer sliding rail, an inner sliding rail, positioning structures and a supporting assembly, the inner sliding rail is arranged on the inner side of the outer sliding rail and is in sliding connection with the outer sliding rail through balls, and the two positioning structures are arranged on the surfaces of the front end and the rear end of the outer sliding rail respectively. The two supporting assemblies are fixedly installed at the corresponding positions of the front end and the rear end of the inner side face of the outer sliding rail through the front positioning structure and the rear positioning structure correspondingly. The supporting assemblies are arranged at the two ends of the inner side of the outer sliding rail, so that when the inner sliding rail is completely contracted, the two ends of the inner sliding rail are supported through the supporting assemblies, the stability of the inner sliding rail is guaranteed, the problem of shaking between the outer sliding rail and the inner sliding rail is solved, and abnormal sound is avoided; meanwhile, after the inner sliding rail is pulled, the supporting assembly at one end of the inner sliding rail can support the inner sliding rail, sinking of the inner sliding rail is effectively prevented, and the problems that the inner sliding rail deforms due to long-time repeated use, and pulling is stuck are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of slide rails, in particular to an anti-inner frame sinking support structure for slide rails. Background Art

[0002] The slide rail is a track for moving parts to slide on. It is generally in the shape of a groove. Rollers, balls or sliders are fixed to the ends of the moving parts. By inserting the sliders, rollers or balls into the grooves of the track, they can slide in the grooves, allowing the moving parts to move on the slide rail.

[0003] The slide rails currently on the market are installed and used in a manner that is either vertically installed or parallel to the horizontal plane, depending on the use environment. When the vertically installed slide rail is used, one end of the inner slide rail will contact the inner wall of the outer slide rail through the ball bearing after being pulled out, thereby reducing the sinking of the inner slide rail. When the horizontally installed slide rail is pulled out, the inner slide rail is subjected to a horizontal downward force instead of a vertical downward force, and because there is no supporting structure on the existing outer slide rail for the horizontal downward force on the inner slide rail, the inner slide rail will sink after being pulled out, and the inner slide rail will be slightly deformed after long-term repeated use, resulting in the problem of jamming when being pulled out. Furthermore, because the existing outer slide rail has no supporting structure, when it is installed horizontally, there is also a problem that after the inner and outer slide rails are completely combined, the two slide rails are prone to shaking, and the stability is poor. Utility Model Content

[0004] The utility model provides an anti-sinking inner frame support structure for a slide rail to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A support structure for preventing inner frame from sinking for a slide rail, comprising an outer slide rail, an inner slide rail, a positioning structure and a support assembly, wherein the inner slide rail is arranged on the inner side of the outer slide rail and is slidably connected to the outer slide rail through a ball bearing, two positioning structures are respectively provided on the surfaces at the front and rear ends of the outer slide rail, and two support assemblies are respectively fixedly installed at corresponding positions at the front and rear ends of the inner side surface of the outer slide rail through two front and rear positioning structures, the top of the support assembly is fitted to the inner side surface of the inner slide rail, and the inner side surface of the inner slide rail is slidably matched with the top of the support assembly;

[0007] When the inner slide rail is in a fully retracted state relative to the outer slide rail, the front and rear support components jointly support the inner slide rail; when the inner slide rail is in an extended state relative to the outer slide rail, the support component located at the front end alone supports the inner slide rail.

[0008] Preferably, the positioning structure includes a rivet hole and two positioning holes symmetrically arranged with the rivet hole as a symmetry axis.

[0009] Preferably, the support assembly includes a positioning platform arranged on the inner side of the outer slide rail, support blocks connected to the four corners of the top of the positioning platform, a positioning column connected to the bottom of the positioning platform, and a rivet member passing through the positioning platform and connected to the rivet hole, and the positioning column is arranged in the positioning hole, and the inner slide rail slides and rubs on the support block.

[0010] Preferably, the positioning structure is an elongated hole, and the extension direction of the long side of the elongated hole is perpendicular to the transverse line of the outer slide rail.

[0011] Preferably, the support assembly includes a first stepped boss arranged in the elongated hole, first ball sockets opened at both ends of the top of the first stepped boss, and first balls respectively arranged in the first ball sockets, and the inner slide rail rolls and rubs on the first balls.

[0012] Preferably, the positioning structure is a short hole.

[0013] Preferably, the support assembly includes a second stepped boss arranged in the short strip hole, a second ball socket opened at the top of the second stepped boss and a second ball arranged in the second ball socket, and the inner slide rail rolls and rubs on the second ball.

[0014] Preferably, a plurality of through holes and protrusions are punched on the surface of the inner slide rail along the transverse direction, and the through holes and protrusions are distributed at the transverse center of the inner slide rail.

[0015] Preferably, the four support blocks are grouped with two adjacent ones each, and a first oil groove is provided between two support blocks in each group.

[0016] Preferably, the top ends of the two first ball sockets are respectively provided with second oil grooves.

[0017] By adopting the above technical solution, the beneficial effects achieved by the utility model are:

[0018] In the utility model, support assemblies are provided at the two inner ends of the outer slide rail, so that when the inner slide rail is fully retracted, both ends of the inner slide rail are supported by the support assemblies, thereby ensuring the stability of the inner slide rail, reducing the problem of shaking between the outer slide rail and the inner slide rail, and avoiding the generation of abnormal noise; at the same time, after the inner slide rail is pulled out, the support assembly at one end thereof can support the inner slide rail, effectively preventing the inner slide rail from sinking, avoiding deformation of the inner slide rail due to long-term repeated use, and avoiding the problem of jamming when pulling out. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present utility model;

[0020] Figure 2 This is a schematic diagram of the overall bottom structure of Example 1 of the utility model;

[0021] Figure 3 This is a schematic diagram of the outer slide rail structure in Example 1 of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the support assembly in Example 1 of the utility model;

[0023] Figure 5 This is a schematic diagram of the mounting hole structure of Embodiment 1 of the present utility model;

[0024] Figure 6 This is a schematic diagram of the overall structure of the second embodiment of the present utility model;

[0025] Figure 7 This is a schematic diagram of the overall bottom structure of the second embodiment of the present utility model;

[0026] Figure 8 This is a schematic diagram of the outer slide rail structure of the second embodiment of the utility model;

[0027] Fig. 9 This is a schematic diagram of the support assembly structure of Example 2 of the present utility model;

[0028] Fig.10 This is a schematic diagram of the support assembly and inner slide rail structure of Example 2 of the utility model;

[0029] Fig.11 This is a schematic diagram of the overall structure of Embodiment 3 of the present utility model;

[0030] Fig.12 This is a schematic diagram of the overall bottom structure of Embodiment 3 of the present utility model;

[0031] Fig.13 This is a schematic diagram of the outer slide rail structure of Embodiment 3 of the present utility model;

[0032] Fig.14 This is a schematic diagram of the support assembly and the outer slide rail structure of Example 3 of the utility model;

[0033] Fig.15 This is a schematic diagram of the overall structure of the support assembly of Example 3 in the present utility model.

[0034] In the figure: 1, outer slide rail; 2, inner slide rail; 3, positioning structure; 4, rivet hole; 5, positioning hole; 6, positioning platform; 7, support block; 8, positioning column; 9, rivet piece; 10, long hole; 11, first stepped boss; 12, first ball socket; 13, first ball; 14, short hole; 15, second stepped boss; 16, second ball socket; 17, second ball; 18, through hole; 19, raised part; 20, first oil groove opening; 21, second oil groove opening; 22, third oil groove opening; 23, mounting hole; 24, support assembly. DETAILED DESCRIPTION

[0035] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0036] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure. Embodiment 1

[0037] like Figure 1-5 As shown, the utility model provides a support structure for preventing the inner frame from sinking for a slide rail, comprising an outer slide rail 1, an inner slide rail 2, a positioning structure 3 and a support assembly 24. The inner slide rail 2 is arranged on the inner side of the outer slide rail 1 and is slidably connected to the outer slide rail 1 through a ball bearing. Two positioning structures 3 are respectively provided on the surfaces at the front and rear ends of the outer slide rail 1, and two support assemblies 24 are respectively fixedly installed at corresponding positions at the front and rear ends of the inner side surface of the outer slide rail 1 through the front and rear positioning structures 3. The top of the support assembly 24 is fitted to the inner side surface of the inner slide rail 2, and the inner side surface of the inner slide rail 2 is slidably matched with the top of the support assembly 24.

[0038] When the inner slide rail 2 is in a fully retracted state relative to the outer slide rail 3, the front and rear support components 24 jointly support the inner slide rail 2; when the inner slide rail 2 is in an extended state relative to the outer slide rail 1, the support component 24 at the front end alone supports the inner slide rail 2.

[0039] In this embodiment, the positioning structure 3 includes a rivet hole 4 and two positioning holes 5 symmetrically arranged with the rivet hole 4 as the axis of symmetry. The support assembly 24 includes a positioning platform 6 arranged on the inner side of the outer slide rail 1, support blocks 7 connected to the four corners of the top of the positioning platform 6, a positioning column 8 connected to the bottom of the positioning platform 6, and a rivet member 9 that passes through the positioning platform 6 and is connected to the rivet hole 4. Two positioning columns 8 are provided, and the two positioning columns 8 are respectively arranged in the corresponding positioning holes 5, and the inner slide rail 2 slides and rubs on the support block 7.

[0040] Specifically, a mounting hole 23 is formed through the positioning platform 6, and the rivet member 9 is connected to the rivet hole 4 through the mounting hole 23, so as to cooperate with the two positioning columns 8 to be inserted into the corresponding positioning holes 5, thereby ensuring the stability of the support assembly 24. The support assembly 24 can effectively prevent the inner slide rail 2 from sinking after being pulled out, thereby avoiding the problem of pulling-out jamming caused by long-term repeated use. In addition, since the support assemblies 24 are arranged at both ends of the outer slide rail 1, after the inner slide rail 2 is fully retracted, both ends thereof are supported by the support assemblies 24, thereby ensuring the stability of the inner slide rail 2 and reducing the problem of shaking between the outer slide rail 1 and the inner slide rail 2.

[0041] To be more specific, the four support blocks 7 are grouped with every two adjacent ones, and a first oil groove opening 20 is provided between the two support blocks 7 in each group. Specifically, a fixed lubricant can be placed at the first oil groove opening 20, and the lubricant includes but is not limited to paraffin, wollastonite and fluoride, and the fluoride includes sodium fluoride, fluorite, etc. Therefore, when the inner slide rail 2 is pulled and pushed back and forth, it can slide and rub the top of the fixed lubricant, so that the surface of the inner slide rail 2 with the lubricant can smoothly slide and rub with the support block 7, thereby ensuring the smoothness between the inner slide rail 2 and the support block 7.

[0042] In this embodiment, a plurality of through holes 18 and protrusions 19 are punched along the lateral direction on the surface of the inner slide rail 2, and the through holes 18 and the protrusions 19 are distributed at the lateral center of the inner slide rail 2. Specifically, when the inner slide rail 2 is pulled or pushed, the support blocks 7 at the four corners of the positioning platform 6 are arranged on both sides of the bottom end of the protrusion 19, so that the top of the support block 7 can fit on the inner slide rail 2 to ensure the stability of the inner slide rail 2 after pulling and preventing sinking. Embodiment 2

[0043] like Figure 6-10 As shown, it includes an outer slide rail 1, an inner slide rail 2, a positioning structure 3 and a support assembly 24. The inner slide rail 2 is arranged on the inner side of the outer slide rail 1 and is slidably connected to the outer slide rail 1 through a ball bearing. Two positioning structures 3 are respectively provided on the surfaces of the front and rear ends of the outer slide rail 1, and two support assemblies 24 are respectively fixedly installed at corresponding positions of the front and rear ends of the inner side surface of the outer slide rail 1 through the front and rear positioning structures 3. The top of the support assembly 24 is attached to the inner side surface of the inner slide rail 2, and the inner side surface of the inner slide rail 2 is slidably matched with the top of the support assembly 24.

[0044] When the inner slide rail 2 is in a fully retracted state relative to the outer slide rail 3, the front and rear support components 24 jointly support the inner slide rail 2; when the inner slide rail 2 is in an extended state relative to the outer slide rail 1, the support component 24 at the front end alone supports the inner slide rail 2.

[0045] In this embodiment, the positioning structure 3 is a long hole 10, and the long side extension direction of the long hole 10 is perpendicular to the horizontal line of the outer slide rail 1. The support assembly 24 includes a first stepped boss 11 arranged in the long hole 10, a first ball socket 12 opened at both ends of the top of the first stepped boss 11, and first balls 13 respectively arranged in the first ball sockets 12. The inner slide rail 2 rolls and rubs on the first ball 13, and the top ends of the two first ball sockets 12 are respectively provided with second oil groove openings 21.

[0046] Specifically, the first ball 13 can be a plastic ball or a steel ball, and the lubricant can be injected into the second oil groove 21, so that when the first ball 13 rotates in the first ball socket 12, the lubricant can adhere to the surface of the first ball 13, ensuring the rolling smoothness of the first ball 13, facilitating the rolling friction between the inner slide rail 2 and the two first balls 13, and ensuring that the inner slide rail 2 is supported by the support component 24 at one end after being pulled out, so as to effectively prevent the inner slide rail 2 from sinking, and avoid the problem of pulling and jamming caused by long-term repeated use. In addition, by arranging double-ball support components 24 at both ends, it can be ensured that after the inner slide rail 2 is fully retracted, the problem of shaking between the outer slide rail 1 and the inner slide rail 2 can be reduced.

[0047] In this embodiment, a plurality of through holes 18 and protrusions 19 are punched along the lateral direction on the surface of the inner slide rail 2, and the through holes 18 and the protrusions 19 are distributed at the lateral center of the inner slide rail 2. Specifically, when the first ball 13 is pulled or pushed on the inner slide rail 2, the first ball 13 is arranged on both sides of the bottom end of the protrusion 19, so that the top of the first ball 13 can fit on the inner slide rail 2, thereby ensuring the stability of the inner slide rail 2 after pulling and preventing sinking. Embodiment 3

[0048] like Figure 11-15 As shown, it includes an outer slide rail 1, an inner slide rail 2, a positioning structure 3 and a support assembly 24. The inner slide rail 2 is arranged on the inner side of the outer slide rail 1 and is slidably connected to the outer slide rail 1 through a ball bearing. Two positioning structures 3 are respectively provided on the surfaces of the front and rear ends of the outer slide rail 1, and two support assemblies 24 are respectively fixedly installed at corresponding positions of the front and rear ends of the inner side surface of the outer slide rail 1 through the front and rear positioning structures 3. The top of the support assembly 24 is attached to the inner side surface of the inner slide rail 2, and the inner side surface of the inner slide rail 2 is slidably matched with the top of the support assembly 24.

[0049] When the inner slide rail 2 is in a fully retracted state relative to the outer slide rail 3, the front and rear support components 24 jointly support the inner slide rail 2; when the inner slide rail 2 is in an extended state relative to the outer slide rail 1, the support component 24 at the front end alone supports the inner slide rail 2.

[0050] In this embodiment, the positioning structure 3 is a short hole 14, and the supporting assembly 24 includes a second stepped boss 15 arranged in the short hole 14, a second ball socket 16 opened at the top of the second stepped boss 15, and a second ball 17 arranged in the second ball socket 16. The inner slide rail 2 rolls and rubs on the second ball 17, and the top part of the first ball socket 12 is respectively provided with a third oil groove opening 22.

[0051] Specifically, the second ball 17 can be a plastic ball or a steel ball, and the third oil groove 22 can be used to inject lubricant, so that when the second ball 17 rotates in the second ball socket 16, the lubricant can adhere to the surface of the second ball 17, ensuring the rolling smoothness of the second ball 17, which is beneficial to the rolling friction between the inner slide rail 2 and the single second ball 17, and ensuring that the inner slide rail 2 is supported by the support component 24 at one end after being pulled out, so as to effectively prevent the inner slide rail 2 from sinking, and avoid the problem of pulling and jamming caused by long-term repeated use. The support component 24 of this structural design is limited to when the inner slide rail 2 has no other processing features. Therefore, the use of a single ball can reduce the number of balls and reduce certain economies.

[0052] In summary, support assemblies 24 are provided at both ends of the inner side of the outer slide rail 1. On the one hand, when the inner slide rail 2 is fully retracted, both ends of the inner slide rail 2 are supported by the support assemblies 24, thereby ensuring the stability of the inner slide rail 2, reducing the shaking problem between the outer slide rail 1 and the inner slide rail 2, and avoiding the generation of abnormal noise; on the other hand, after the inner slide rail 2 is pulled out, the support assembly 24 at one end can support the inner slide rail 2, effectively preventing the inner slide rail 2 from sinking, avoiding deformation of the inner slide rail 2 due to long-term repeated use, and causing the problem of pulling and jamming.

[0053] In the present utility model, the term "plurality" refers to two or more than two, unless otherwise clearly defined. The term "and / or" used in this article includes any and all combinations of one or more related listed items. The terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "connection" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0054] It should be noted that when an element is referred to as being "assembled on", "installed on", "fixed on" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0055] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0056] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A support structure for preventing inner frame from sinking for a slide rail, characterized in that: It comprises an outer slide rail (1), an inner slide rail (2), a positioning structure (3) and a support assembly (24); the inner slide rail (2) is arranged on the inner side of the outer slide rail (1) and is slidably connected to the outer slide rail (1) via a ball bearing; the two positioning structures (3) are respectively arranged on the surfaces at the front and rear ends of the outer slide rail (1); and the two support assemblies (24) are respectively fixedly mounted at corresponding positions at the front and rear ends of the inner side surface of the outer slide rail (1) via the two front and rear positioning structures (3); the top of the support assembly (24) is fitted to the inner side surface of the inner slide rail (2), and the inner side surface of the inner slide rail (2) is slidably matched with the top of the support assembly (24); When the inner slide rail (2) is in a completely retracted state relative to the outer slide rail (1), the two front and rear support components (24) jointly support the inner slide rail (2); when the inner slide rail (2) is in an extended state relative to the outer slide rail (1), the support component (24) located at the front end alone supports the inner slide rail (2).

2. The anti-sinking inner frame support structure for a slide rail according to claim 1, characterized in that: The positioning structure (3) comprises a rivet hole (4) and two positioning holes (5) which are symmetrically arranged with the rivet hole (4) as a symmetry axis.

3. The anti-sinking inner frame support structure for a slide rail according to claim 2, characterized in that: The support assembly (24) comprises a positioning platform (6) arranged on the inner side of the outer slide rail (1), support blocks (7) connected to the four corners of the top of the positioning platform (6), a positioning column (8) connected to the bottom of the positioning platform (6), and a rivet member (9) passing through the positioning platform (6) and connected to the rivet hole (4), wherein the positioning column (8) is arranged in the positioning hole (5), and the inner slide rail (2) slides and rubs on the support block (7).

4. The anti-sinking inner frame support structure for a slide rail according to claim 1, characterized in that: The positioning structure (3) is a long hole (10), and the long side of the long hole (10) is extended in a direction perpendicular to the transverse line of the outer slide rail (1).

5. The anti-sinking inner frame support structure for a slide rail according to claim 4, characterized in that: The support assembly (24) comprises a first stepped boss (11) disposed in the elongated hole (10), first ball sockets (12) opened at two ends of the top of the first stepped boss (11), and first balls (13) respectively disposed in the first ball sockets (12), and the inner slide rail (2) rolls and rubs on the first balls (13).

6. The anti-sinking inner frame support structure for a slide rail according to claim 1, characterized in that: The positioning structure (3) is a short hole (14).

7. The anti-sinking inner frame support structure for a slide rail according to claim 6, characterized in that: The support assembly (24) comprises a second stepped boss (15) disposed in the short strip hole (14), a second ball socket (16) opened at the top of the second stepped boss (15), and a second ball (17) disposed in the second ball socket (16), and the inner slide rail (2) rolls and rubs on the second ball (17).

8. The anti-sinking inner frame support structure for a slide rail according to claim 1, characterized in that: A plurality of through holes (18) and raised portions (19) are punched on the surface of the inner slide rail (2) in a transverse direction, and the through holes (18) and raised portions (19) are distributed at the transverse center of the inner slide rail (2).

9. The inner frame anti-sinking support structure for a slide rail according to claim 3, characterized in that: The four support blocks (7) are grouped in pairs, with two adjacent support blocks forming a group, and a first oil groove (20) is provided between two support blocks (7) in each group.

10. The anti-inner frame sinking support structure for a slide rail according to claim 5, characterized in that: The top ends of the two first ball sockets (12) are respectively provided with second oil grooves (21).

Images