Drawer guide rail with locking structure

Abstract

The utility model relates to the technical field of drawer guide rails, and discloses a drawer guide rail with locking structures, which comprises a guide rail body, the guide rail body consists of an outer rail, a middle rail and an inner rail, the middle rail is slidably mounted on the inner side of the outer rail, the inner rail is slidably mounted on the inner side of the middle rail, and the locking structures are arranged on the inner rail and the middle rail. According to the drawer guide rail with the locking structure, the locking structure and the fixing plate are arranged, the limiting piece can limit the inner rail, when a drawer is pulled, the inner rail drives the middle rail to move rightwards to stretch out, after the middle rail stretches out completely, the abutting rod is abutted by the fixing plate to be turned over, and the limiting piece can limit the limiting piece. Therefore, the clamping block and the inner rail are pushed to move rightwards, limitation on the inner rail is relieved, the inner rail can be drawn out at the moment, and the situation that the inner rail is directly drawn out, and the stretching smoothness and supporting performance of the guide rail body are affected is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to drawer guide rail technical field, concretely is a drawer guide rail with locking structure. BACKGROUND

[0002] Drawer guide rail is a guide rail for door, drawer or other movable parts movement.

[0003] The existing drawer guide rail structure includes inner rail, middle rail and outer rail, the inner rail is slidably arranged on the middle rail, and the middle rail is slidably arranged on the outer rail, wherein the outer rail is fixedly arranged in the inner wall of the cabinet, and the inner rail is generally fixedly connected with the drawer.

[0004] At present, when the drawer is pulled to move, the drawer guide rail does not have a fixed extension sequence, when the inner rail is directly pulled out, it is easy to cause the damage of the inner rail due to the excessive load, thereby affecting the smoothness of the extension of the slide rail, therefore, the drawer guide rail with locking structure is provided. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a drawer guide rail with locking structure to solve the problems in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme: a drawer guide rail with locking structure, comprising a guide rail body, the guide rail body is composed of an outer rail, a middle rail and an inner rail, the middle rail is slidably installed on the inner side of the outer rail, the inner rail is slidably installed on the inner side of the middle rail, the inner rail and the middle rail are provided with locking structures;

[0007] The locking structure comprises:

[0008] A limiting piece is used for limiting the inner rail, so that the inner rail is always on the inner side of the middle rail before the middle rail is completely pulled out;

[0009] A contact rod is used for pushing the inner rail to make the inner rail separate from the limiting piece;

[0010] A clamping block is used for cooperating with the contact rod to make the contact rod stably push the inner rail.

[0011] Preferably, the limiting piece is arranged at the inner side of the middle rail, the abutting rod penetrates through the middle rail and is hinged with the middle rail, the right side of the abutting rod is fixed with a limiting spring, the end of the limiting spring away from the abutting rod is fixed with the top of the middle rail, the top of the inner rail is provided with a groove, the inner side of the groove is fixed with a clamping block, the groove is arranged to provide sufficient space for the movement of the abutting rod, when the abutting rod rotates at the hinged position with the middle rail, the abutting rod can abut against the clamping block, the abutting rod pushes the clamping block, the clamping block drives the inner rail to move rightwards in the middle rail, so that the inner rail is no longer clamped by the limiting piece, thereby achieving that the inner rail can be pulled out only when the middle rail is completely pulled out, avoiding that the inner rail is directly pulled out, which affects the smoothness of the extension of the guide rail body and the supporting performance.

[0012] Preferably, the limiting piece is composed of a U-shaped rubber block and a convex block, the U-shaped rubber block is fixed at the inner side of the middle rail, the inner side of the U-shaped rubber block is fixed with the convex block, the U-shaped rubber block can abut against the surface of the inner rail, the U-shaped rubber block made of rubber material increases the friction with the inner rail, so that the inner rail can move relative to the U-shaped rubber block only when subjected to a certain degree of external force, the convex block is made of rubber, the convex block can abut against the clamping block, thereby achieving that the inner rail is locked, when the clamping block is pushed to move rightwards by the abutting rod, the clamping block abuts against the convex block, the convex block is deformed, when the clamping block no longer abuts against the convex block, the limitation on the inner rail is released.

[0013] Preferably, the abutting rod, the limiting spring, the clamping block and the groove are all arranged in two groups, the two groups of the abutting rod, the limiting spring, the clamping block and the groove are symmetrically arranged with the horizontal center line of the middle rail and the inner rail as the axis of symmetry.

[0014] Preferably, the right end of the outer rail is fixed with a fixed plate, the fixed plate is arranged in two groups, the two groups of the fixed plate have a certain gap, the abutting rubber blocks are fixed between the two groups of the fixed plate, when the middle rail is completely pulled out, the abutting rod abuts against the abutting rubber blocks between the fixed plates, the abutting rod rotates at the hinged position with the middle rail, thereby controlling the abutting rod to push the clamping block, and the abutting rod can extrude the abutting rubber blocks, so that the abutting rod is clamped between the abutting rubber blocks, the abutting rod is limited, thereby limiting the middle rail, when the guide rail body is pushed to be retracted, the inner rail is first retracted into the middle rail, when the clamping block moves to the position of the abutting rod, the abutting rod is abutted, the abutting rod rotates at the hinged position with the middle rail and returns to the original position, at the same time, the abutting rod is separated from the abutting rubber blocks, when the guide rail body is continuously pushed, the middle rail can be retracted into the outer rail, thereby achieving that the inner rail is first retracted into the middle rail, and then the middle rail is retracted.

[0015] Compared with the prior art, the drawer guide rail with the locking structure has the following beneficial effects:

[0016] 1. The drawer guide rail with the locking structure, through the locking structure and the fixing plate, the limiting piece can limit the inner rail, when the drawer is pulled, the inner rail will first move to the right with the middle rail, after the middle rail is completely extended, the abutting rod is abutted by the fixing plate to be folded, thereby pushing the clamping block and the inner rail to move to the right, the limitation on the inner rail is released, at this time, the inner rail can be pulled out, the extension smoothness and the supporting performance of the guide rail body are avoided from being affected by the direct pulling out of the inner rail.

[0017] 2. The drawer guide rail with the locking structure, through the abutting rubber block, the abutting rod is limited, thereby limiting the middle rail, when the guide rail body is pushed to be retracted, since the middle rail is limited, the inner rail is first retracted into the middle rail, when the clamping block moves to the position of the abutting rod, the abutting rod can be abutted, the abutting rod is rotated to reset at the hinged position of the middle rail, meanwhile, the abutting rod is separated from the abutting rubber block, at this time, when the middle rail is continuously pushed, the middle rail can be retracted into the outer rail, the sequence of the rails is determined, the inner rail is first retracted into the middle rail, and then the middle rail is retracted. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is an overall front view structural schematic diagram of the utility model;

[0019] Figure 2 It is an overall side view structural schematic diagram of the utility model;

[0020] Figure 3 It is an overall front view structural schematic diagram of the utility model; Figure 2 It is an enlarged structural schematic diagram of the middle rail;

[0021] Figure 4 It is a structural schematic diagram of the middle rail in the extended state of the utility model;

[0022] Figure 5 It is an exploded structural schematic diagram of the middle rail and the inner rail of the utility model;

[0023] Figure 6 It is a structural schematic diagram of the limiting piece of the utility model.

[0024] In the drawing: 101, outer rail; 102, middle rail; 103, inner rail; 2, locking structure; 21, limiting piece; 22, abutting rod; 23, clamping block; 24, limiting spring piece; 211, U-shaped rubber block; 212, protruding block; 3, fixing plate; 4, abutting rubber block. DETAILED DESCRIPTION

[0025] As Figures 1-6The utility model provides a technical scheme: a drawer guide rail with locking structure, including guide rail body, guide rail body is by outer rail 101, middle rail 102 and inner rail 103 are composed, middle rail 102 sliding installation is at the inside of outer rail 101, inner rail 103 is slidingly installed in the inside of middle rail 102, and locking structure 2 is arranged on inner rail 103 and middle rail 102, and locking structure 2 includes limiting piece 21, abutting lever 22, clamping block 23 and restriction spring 24.

[0026] Limiting piece 21 is arranged at the inside of middle rail 102, abutting lever 22 penetrates middle rail 102 and is hinged with middle rail 102, the right side of abutting lever 22 is fixed with restriction spring 24, and the end away from abutting lever 22 of restriction spring 24 is fixed with the top of middle rail 102, the top of inner rail 103 is provided with recess, and the inside of recess is fixed with clamping block 23, and through the recess, abutting lever 22 can have enough space to move, when abutting lever 22 rotates with the position of hinge connection of middle rail 102, abutting lever 22 can abut on clamping block 23, so that abutting lever 22 pushes clamping block 23, and clamping block 23 drives inner rail 103 to move right in middle rail 102, so that inner rail 103 is no longer clamped by limiting piece 21, so that when middle rail 102 is completely drawn out, inner rail 103 can be drawn out, avoiding that inner rail 103 is directly drawn out, which influences the extension smoothness and support performance of guide rail body.

[0027] Limiting piece 21 is composed of U-shaped rubber block 211 and lug 212, U-shaped rubber block 211 is fixed at the inside of middle rail 102, lug 212 is fixed at the inside of U-shaped rubber block 211, U-shaped rubber block 211 can abut on the surface of inner rail 103, through the U-shaped rubber block 211 of rubber material, increase the friction between inner rail 103, so that inner rail 103 can only relatively move with U-shaped rubber block 211 when subjected to a certain degree of external force, lug 212 is made of rubber, and lug 212 can abut on clamping block 23, so as to lock inner rail 103, when clamping block 23 is pushed right by abutting lever 22, clamping block 23 abuts on lug 212, and lug 212 is deformed, when clamping block 23 no longer abuts on lug 212, the restriction of inner rail 103 is released.

[0028] Abutting lever 22, restriction spring 24, clamping block 23 and recess are all provided with two groups, and the two groups of abutting lever 22, restriction spring 24, clamping block 23 and recess are symmetrically arranged with the horizontal center line of middle rail 102 and inner rail 103 as the axis of symmetry.

[0029] The right end of the outer rail 101 is fixed with a fixed plate 3, the fixed plate 3 is provided with two groups, the two groups of fixed plates 3 have a certain gap, the two groups of fixed plates 3 are fixed with a resisting rubber block 4, when the middle rail 102 is completely pulled out, the resisting lever 22 is resisted on the resisting rubber block 4 between the fixed plates 3, so that the resisting lever 22 rotates at the position of hinged with the middle rail 102, thereby controlling the resisting lever 22 to push the clamping block 23, and the resisting lever 22 can extrude the resisting rubber block 4, so that the resisting lever 22 is clamped into the resisting rubber block 4, the resisting lever 22 is limited, thereby limiting the middle rail 102, when the guide rail body is pushed to be retracted, the inner rail 103 is first retracted into the middle rail 102, when the clamping block 23 moves to the position of the resisting lever 22, the resisting lever 22 can be resisted, so that the resisting lever 22 rotates at the position of hinged with the middle rail 102 and resets, at the same time, the resisting lever 22 is controlled to be separated from the resisting rubber block 4, at this time, when the middle rail 102 is continuously pushed, the middle rail 102 can be retracted into the outer rail 101, so that the inner rail 103 is first retracted into the middle rail 102, and then the middle rail 102 can be retracted.

[0030] The outer rail 101 is installed in the drawer cabinet, the drawer is connected and fixed with the inner rail 103, when the drawer is pulled, the inner rail 103 is first pulled, at this time, the inner rail 103 is limited, and then the middle rail 102 is first moved to the right and extended from the outer rail 101, when the middle rail 102 is completely extended, the resisting lever 22 is resisted on the resisting rubber block 4 between the fixed plates 3, so that the resisting lever 22 rotates at the position of hinged with the middle rail 102, thereby controlling the resisting lever 22 to push the clamping block 23, the clamping block 23 drives the inner rail 103 to move right in the middle rail 102, so that the inner rail 103 is no longer clamped by the limiting piece 21, thereby realizing that the inner rail 103 can be pulled out only after the middle rail 102 is completely pulled out.

[0031] When the drawer is pushed to move left and close, the drawer first drives the inner rail 103 to be retracted into the middle rail 102, when the clamping block 23 moves to the position of the resisting lever 22, the resisting lever 22 can be resisted, so that the resisting lever 22 rotates at the position of hinged with the middle rail 102 and resets, at the same time, the resisting lever 22 is controlled to be separated from the resisting rubber block 4, at this time, when the middle rail 102 is continuously pushed, the middle rail 102 can be retracted into the outer rail 101, so that the inner rail 103 is first retracted into the middle rail 102, and then the middle rail 102 can be retracted.

[0032] The above is a detailed description of the general utility model, but some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, the modifications or improvements without departing from the spirit of the utility model are within the protection scope of the utility model.

Claims

1. A drawer guide rail having a locking structure, comprising a guide rail body, characterized by: The guide rail body is composed of an outer rail (101), a middle rail (102) and an inner rail (103), the middle rail (102) is slidingly installed on the inner side of the outer rail (101), and the inner rail (103) is slidingly installed on the inner side of the middle rail (102), and the inner rail (103) and the middle rail (102) are provided with a locking structure (2); The locking structure (2) comprises: A limiting piece (21) is used for limiting the inner rail (103), so that the inner rail (103) is always on the inner side of the middle rail (102) before the middle rail (102) is completely pulled out; A contact lever (22) is used for pushing the inner rail (103) to make the inner rail (103) separate from the limiting piece (21); A clamping block (23) is used for cooperating with the contact lever (22) to stably push the inner rail (103).

2. The drawer guide rail with a locking structure according to claim 1, characterized in that: The limiting piece (21) is arranged on the inner side of the middle rail (102), the contact lever (22) penetrates the middle rail (102) and is hinged with the middle rail (102), the right side of the contact lever (22) is fixed with a limiting spring (24), one end of the limiting spring (24) away from the contact lever (22) is fixed with the top of the middle rail (102), and the top of the inner rail (103) is provided with a groove, and the inner side of the groove is fixed with the clamping block (23).

3. The drawer guide rail with a locking structure according to claim 1, characterized in that: The limiting piece (21) is composed of a U-shaped rubber block (211) and a protrusion (212), the U-shaped rubber block (211) is fixed on the inner side of the middle rail (102), and the inner side of the U-shaped rubber block (211) is fixed with the protrusion (212).

4. The drawer guide rail with a locking structure according to claim 1, characterized in that: The contact lever (22), the limiting spring (24), the clamping block (23) and the groove are provided with two groups, and the two groups of the contact lever (22), the limiting spring (24), the clamping block (23) and the groove are symmetrically arranged with the transverse center line of the middle rail (102) and the inner rail (103) as the axis of symmetry.

5. The drawer guide rail with a locking structure according to claim 1, characterized in that: The right end of the outer rail (101) is fixed with a fixed plate (3), the fixed plate (3) is provided with two groups, and the two groups of the fixed plate (3) have a certain gap.

6. The drawer guide rail with a locking structure according to claim 5, characterized in that: The contact rubber block (4) is fixed between the two groups of the fixed plate (3).

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