Sliding rail tail limiting structure

Abstract

The utility model provides a sliding rail tail limiting structure which comprises an outer rail, a limiting block is detachably arranged at the end of the outer rail, and the limiting block is made of flexible materials. A middle rail is arranged in the outer rail in a sliding mode, a sliding assembly is arranged between the middle rail and the outer rail, the sliding assembly is connected with the middle rail and the outer rail in a sliding mode, a pushing assembly is arranged on the middle rail, and when the middle rail slides, the sliding assembly can be driven by the pushing assembly to slide till the sliding assembly abuts against the limiting block. According to the sliding rail tail limiting structure, traditional rigid limiting is replaced with flexible limiting, the impact force borne by the outer rail can be effectively reduced, and therefore the outer rail is effectively prevented from loosening due to long-time impact in the using process, and when a drawer is subjected to heavy pressure after being opened, the sliding rail tail limiting structure is not prone to falling off. The limiting blocks made of flexible materials at the ends are not prone to irreversible deformation, and the service life of the installed sliding rail is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of slide rails, and particularly relates to a tail limiting structure of a slide rail. Background Art

[0002] The working principle of the slide rail is mainly based on the principle of rolling friction. When a drawer or a box is pulled out, the pulley slides outwards together with the drawer, and the balls inside the pulley generate rolling friction with the surface of the track, so that the drawer can be easily pulled out. Similarly, when the drawer is pushed back, the pulley slides inwards together with the drawer, and the drawer is easily pushed back by using the principle of rolling friction.

[0003] A corresponding limiting structure is arranged at the tail of the slide rail. When the drawer is pulled out, the pulley on the slide rail slides along the track. When the drawer reaches the fully pulled-out position, the limiting block blocks the further movement of the pulley, thereby preventing the drawer from slipping.

[0004] At present, most of the tail limiting structures of the slide rail are to arrange a convex block at the end of the middle rail or the inner rail, and weld an iron block at one end of the inner side of the outer rail far away from the convex block, and the movement of the convex block is limited by the block, and most of the limiting structures are rigid limiting. However, the rigid limiting structure has certain disadvantages in use. For example, when the slide rail is pulled out to the limit position, the force is too large, which causes a large impact force on the outer rail, resulting in the loosening of the installation of the outer rail. Therefore, in view of this, a tail limiting structure of the slide rail is proposed to solve the above technical problems. Content of the Utility Model

[0005] Aiming at the deficiencies existing in the prior art, the utility model provides a tail limiting structure of a slide rail to solve the technical problems mentioned in the above background art, that is, most of the traditional slide rail tails are limited by a rigid structure, so that when the slide rail is pulled out to the limit position, the force is too large, which causes a large impact force on the outer rail, resulting in the loosening of the installation of the outer rail.

[0006] To achieve the above object, the utility model provides the following technical solution: a tail limiting structure of a slide rail, comprising:

[0007] An outer rail;

[0008] A limiting block, detachably arranged at the end of the outer rail, and the limiting block is made of a flexible material;

[0009] A middle rail, slidably arranged inside the outer rail;

[0010] A sliding component, arranged between the middle rail and the outer rail, and slidably connected to both the middle rail and the outer rail; and

[0011] The pushing component is arranged on the middle rail. When the middle rail slides, the sliding component can be driven to slide through the pushing component until the sliding component abuts against the limiting block.

[0012] Furthermore, a first clamping groove is formed at the end of the outer rail, and a clamping block is arranged on the limiting block. The clamping block is detachably clamped in the first clamping groove.

[0013] Furthermore, a butting convex rib is arranged at the end of the limiting block, and the butting convex rib abuts against the end of the outer rail.

[0014] Furthermore, reinforcing convex ribs are arranged on both sides of the limiting block.

[0015] Furthermore, a second clamping groove is formed in the side wall at the end of the outer rail, and a wedge-shaped block is arranged on the side wall of the limiting block. The wedge-shaped block is clamped in the second clamping groove.

[0016] Furthermore, the sliding component includes a first ball cage, and the first ball cage is slidably arranged between the outer rail and the middle rail.

[0017] Furthermore, an installation frame is arranged at the end of the first ball cage. The installation frame is in an eight-shaped configuration. An annular groove is formed on the installation frame, and an anti-slip ring is sleeved on the annular groove. An abutting block is arranged at the end of the first ball cage. The abutting block is sleeved on the installation frame, and the anti-slip ring abuts against the inner wall of the abutting block.

[0018] Furthermore, the abutting block is made of a flexible material, and the end of the installation frame away from the first ball cage is located inside the abutting block.

[0019] Furthermore, the pushing component includes a propulsion convex block arranged on the middle rail. The plane at the end of the propulsion convex block is perpendicular to the middle rail and can abut against the end of the first ball cage.

[0020] Furthermore, an inner rail is arranged inside the middle rail, and the inner rail is slidably connected to the middle rail through a second ball cage.

[0021] Compared with the prior art, the present utility model has the following beneficial effects:

[0022] In the limiting structure, the middle rail can slide within the outer rail through a sliding component. During the process of the middle rail sliding out, the pushing component on the middle rail can abut against one end of the sliding component to drive the sliding component to slide accordingly. When the middle rail is pulled out to the extreme position, the sliding component abuts against the limiting block. Thus, the elastic buffer for the sliding of the middle rail is achieved through the limiting block made of flexible material, replacing the traditional rigid limiting with flexible limiting, which can effectively reduce the impact force on the outer rail, thereby effectively avoiding the loosening of the outer rail due to long-term impact during use. Moreover, when the drawer is heavily pressed after being opened, the limiting block made of flexible material at the end is not prone to irreversible deformation, improving the service life after the installation of the slide rail. Brief Description of the Drawings

[0023] In order to more clearly illustrate the specific embodiments of the present invention, the drawings required for use in the specific embodiments will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn according to the actual proportion.

[0024] Figure 1 Schematic perspective view of a limiting structure at the tail of a slide rail provided by the present invention;

[0025] Figure 2 Schematic exploded view of a limiting structure at the tail of a slide rail of the present invention;

[0026] Figure 3 Schematic view of the middle rail in a limiting structure at the tail of a slide rail of the present invention;

[0027] Figure 4 For Figure 3 Enlarged view of area a;

[0028] Figure 5 Schematic view of the outer rail in a limiting structure at the tail of a slide rail of the present invention;

[0029] Reference Signs:

[0030] 101, outer rail; 102, first clamping groove; 103, second clamping groove; 104, limiting block; 105, abutting convex rib; 106, reinforcing convex rib; 107, clamping block; 108, wedge-shaped block;

[0031] 201, middle rail; 202, pushing convex block; 203, first ball holder; 204, mounting bracket; 205, annular groove; 206, anti-slip ring; 207, abutting block;

[0032] 301, inner rail; 302, second ball holder. Detailed Embodiments

[0033] The embodiments of the technical solution of the present utility model will be described in detail below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present utility model, so they are only examples and cannot be used to limit the protection scope of the present utility model.

[0034] Embodiment:

[0035] As Figure 1 、 2 shown, the present utility model provides a limiting structure for the tail of a slide rail, including an outer rail 101. A middle rail 201 is slidably installed inside the outer rail 101, and an inner rail 301 is arranged inside the middle rail 201. The inner rail 301 is slidably connected to the middle rail 201 through a second ball bearing housing 302. When in use, the outer rail 101 is connected to the cabinet body, and the inner rail 301 is connected to the drawer. When the drawer is pulled out, it drives the inner rail 301 to slide inside the middle rail 201, and the middle rail 201 can be driven to slide inside the outer rail 101 through the structure inside the inner rail 301.

[0036] As Figure 5 shown, in this embodiment, a limiting block 104 is detachably arranged at the end of the outer rail 101. The limiting block 104 is made of a flexible material. A first clamping groove 102 is opened at the end of the outer rail 101. A clamping block 107 is arranged on the limiting block 104, and the clamping block 107 is detachably clamped in the first clamping groove 102. An abutting convex edge 105 is arranged at the end of the limiting block 104, and the abutting convex edge 105 abuts against the end of the outer rail 101. Reinforcing convex edges 106 are arranged on both sides of the limiting block 104. A second clamping groove 103 is opened on the side wall at the end of the outer rail 101, and a wedge-shaped block 108 is arranged on the side wall of the limiting block 104. The wedge-shaped block 108 is clamped in the second clamping groove 103.

[0037] The installation of the limiting block 104 is completed through the cooperation of the clamping block 107 and the first clamping groove 102, and the installation of the limiting block 104 is further strengthened through the cooperation of the second clamping groove 103 and the wedge-shaped block 108. The end of the outer rail 101 can be protected through the arrangement of the abutting convex edge 105, avoiding the metal outer rail 101 from causing harm to the body of the user or installer. One side of the wedge-shaped block 108 perpendicular to the limiting block 104 faces the side of the abutting convex edge 105, so as to more effectively prevent the limiting block 104 from detaching from the outer rail 101 when being impacted. And through the arrangement of the reinforcing convex edges 106, the deformation amount of the limiting block 104 when being impacted can be reduced, avoiding its excessive deformation amount and detaching from the outer rail 101, improving its bearing capacity, and increasing the service life of the limiting structure.

[0038] As Figure 2 、 3As described in item 4 above, in this embodiment, a sliding assembly is provided between the middle rail 201 and the outer rail 101. The sliding assembly is slidably connected to both the middle rail 201 and the outer rail 101. The sliding assembly includes a first ball cage 203, and the first ball cage 203 is slidably disposed between the outer rail 101 and the middle rail 201. A pushing assembly is provided on the middle rail 201. When the middle rail 201 slides, the pushing assembly can drive the sliding assembly to slide until the sliding assembly abuts against the limiting block 104. The pushing assembly includes a pushing lug 202 provided on the middle rail 201. The plane at the end of the pushing lug 202 is perpendicular to the middle rail 201 and can abut against the end of the first ball cage 203.

[0039] During the movement of the middle rail 201, the pushing lug 202 moves along with it. And when the pushing lug 202 abuts against the first ball cage 203, it can push the first ball cage 203 to slide. When the middle rail 201 slides to the limit position, the first ball cage 203 impacts the limiting block 104. The impact on the middle rail 201 is buffered by the limiting block 104, effectively preventing the excessive force when the drawer is pulled out from causing too much impact force on the outer rail 101, and preventing the outer rail 101 from loosening after installation, improving the installation and use effect of the outer rail 101. At the same time, when the middle rail 201 is fully pulled out and heavy objects are placed in the drawer, the limiting block 104 will not undergo irreversible deformation under heavy pressure, and its structural stability is better than that of traditional rigid limits.

[0040] As Figure 4 shown, in this embodiment, an installation frame 204 is provided at the end of the first ball cage 203. The installation frame 204 is in an eight - shaped configuration. An annular groove 205 is formed on the installation frame 204, and an anti - slip ring 206 is sleeved on the annular groove 205. A contact block 207 is provided at the end of the first ball cage 203. The contact block 207 is sleeved on the installation frame 204, and the anti - slip ring 206 abuts against the inner wall of the contact block 207. The contact block 207 is made of a flexible material, and the end of the installation frame 204 away from the first ball cage 203 is located inside the contact block 207.

[0041] The provision of the contact block 207 can reduce the impact force on the first ball cage 203 when the first ball cage 203 impacts the limiting block 104, thereby protecting the internal ball structure. The contact block 207 is installed through the installation frame 204. The eight - shaped installation frame 204 can have an interference fit with the inner wall of the contact block 207. The cooperation of the anti - slip ring 206 can prevent the contact block 207 from detaching from the first ball cage 203, and at the same time enable the contact block 207 to be replaced, improving the buffering effect of this limiting structure.

[0042] The specific usage method and beneficial effects of the present utility model:

[0043] The middle rail 201 in the limit structure can slide in the outer rail 101 through the first ball cage 203. During the process of the middle rail 201 sliding out, the propulsion bump 202 on the middle rail 201 can abut against one end of the first ball cage 203 to drive the first ball cage 203 to slide along. When the middle rail 201 is pulled out to the limit position, the abutting block 207 at the end of the first ball cage 203 abuts against the limit block 104. Thus, the elastic buffer for the sliding of the middle rail 201 is carried out through the limit block 104 made of flexible material, replacing the traditional rigid limit with a flexible limit, which can effectively reduce the impact force received by the outer rail 101. Therefore, it can effectively avoid the loosening of the outer rail 101 due to long-term impact during use. And when the drawer is under heavy pressure after being opened, the limit block 104 made of flexible material at the end is not prone to irreversible deformation, improving the service life after the slide rail is installed.

[0044] The above shows and describes the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments.

Claims

1. A slide rail tail limiting structure, characterized in that: Included are: Outer rail (101); A limit block (104) is detachably arranged at the end of the outer rail (101), and the limit block (104) is made of a flexible material; A middle rail (201) slidably disposed in the outer rail (101); a sliding assembly, which is arranged between the middle rail (201) and the outer rail (101), and is slidably connected to both the middle rail (201) and the outer rail (101); and A pushing component is arranged on the middle rail (201), and when the middle rail (201) slides, the pushing component can drive the sliding component to slide until the sliding component abuts against the limiting block (104).

2. The slide rail tail limiting structure according to claim 1, characterized in that: A first clamping groove (102) is provided at the end of the outer rail (101), and a clamping block (107) is provided on the limit block (104). The clamping block (107) is detachably clamped in the first clamping groove (102).

3. The slide rail tail limiting structure according to claim 1, characterized in that: An abutting ridge (105) is provided at the end of the limit block (104), and the abutting ridge (105) abuts against the end of the outer rail (101).

4. The slide rail tail limiting structure according to claim 1, characterized in that: Reinforced ridges (106) are provided on both sides of the limit block (104).

5. The slide rail tail limiting structure according to claim 1, characterized in that: A second clamping groove (103) is provided on the end side wall of the outer rail (101), and a wedge block (108) is provided on the side wall of the limit block (104), and the wedge block (108) is clamped in the second clamping groove (103).

6. The slide rail tail limiting structure according to claim 1, characterized in that: The sliding assembly comprises a first ball bearing frame (203), and the first ball bearing frame (203) is slidably arranged between the outer rail (101) and the middle rail (201).

7. The slide rail tail limiting structure according to claim 6, characterized in that: A mounting frame (204) is provided at the end of the first ball bearing frame (203), the mounting frame (204) is in an eight-shaped shape, an annular groove (205) is provided on the mounting frame (204), an anti-slip ring (206) is sleeved on the annular groove (205), an abutment block (207) is provided at the end of the first ball bearing frame (203), the abutment block (207) is sleeved on the mounting frame (204), and the anti-slip ring (206) abuts against the inner wall of the abutment block (207).

8. The slide rail tail limiting structure according to claim 7, characterized in that: The abutment block (207) is made of a flexible material, and one end of the mounting frame (204) away from the first ball frame (203) is located inside the abutment block (207).

9. The slide rail tail limiting structure according to claim 7, characterized in that: The pushing assembly comprises a pushing protrusion (202) arranged on the middle rail (201); the plane of the end of the pushing protrusion (202) is perpendicular to the middle rail (201) and can abut against the end of the first ball rack (203).

10. The slide rail tail limiting structure according to claim 1, characterized in that: An inner rail (301) is arranged inside the middle rail (201), and the inner rail (301) is slidably connected to the middle rail (201) via a second ball bearing frame (302).

Images