Drawer sliding rail assembly capable of sliding smoothly

Abstract

The utility model relates to a drawer sliding rail assembly capable of sliding smoothly. The drawer sliding rail assembly capable of sliding smoothly comprises an outer rail and an inner rail. The outer rail comprises a first plate body and a first bending part arranged above the edge of the first plate body, the first bending part is formed by bending along the inner side of the first plate body, a mounting groove is formed between the first bending part and the first plate body, a sliding strip extending in the length direction is arranged in the mounting groove, and a plurality of balls arranged at intervals are embedded in the sliding strip; the inner rail comprises a second plate body and a second bending part arranged at the edge of the second plate body, the second bending part is formed by bending along the inner side of the second plate body, and the outer surface of the second bending part is in rolling contact with the balls, so that the inner rail can slide relative to the outer rail. The installation groove is formed in the first plate body through the first bending part, and the sliding strip with the ball is installed in the installation groove, so that sliding of the inner rail relative to the outer rail is smoother, the swing amplitude of the inner rail in the drawing process is reduced, and the probability of undesirable phenomena such as unsmooth drawing and blocking of the movable sliding rail is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to furniture fittings technical field especially relates to a drawer slide rail assembly of smooth sliding. BACKGROUND

[0002] The drawer in furniture product is usually connected to furniture main body by drawer slide rail assembly, generally, the drawer slide rail assembly includes an outer rail and an inner rail, the inner rail can slide relative to the outer rail, the outer rail is installed on the furniture main body, the inner rail is installed on the drawer, the sliding of the drawer is realized, thereby the pull-out and push-in of the drawer are realized. But along with the growth of use time and after sliding for many times, it will lead to the bad phenomenon such as unsmooth drawing, slide rail resistance and jamming, so that the flexibility and reliability of the drawer slide rail are poor. SUMMARY

[0003] In order to solve the above technical problems or at least partially solve the above technical problems, the application provides a drawer slide rail assembly of smooth sliding.

[0004] The application provides a drawer slide rail assembly of smooth sliding, which is applied to a drawer cabinet, and the drawer slide rail assembly of smooth sliding includes an outer rail for being installed on a cabinet body and an inner rail for being connected with a drawer.

[0005] The outer rail includes a first plate body extending along a length direction and a first bending part arranged above an edge of the first plate body along the length direction, the first bending part is bent along an inner side of the first plate body, and a mounting groove is formed between the first bending part and the first plate body, a slide strip extending along the length direction is arranged in the mounting groove, and a plurality of spaced balls are inlaid on the slide strip along the length direction.

[0006] The inner rail includes a second plate body extending along a length direction and a second bending part arranged on an edge of the second plate body along the length direction, the second bending part is bent along an inner side of the second plate body, and an outer surface of the second bending part is used for rolling contact with the balls, so that the inner rail can slide relative to the outer rail.

[0007] In a possible implementation, a plurality of mounting holes are arranged on the slide strip along the length direction, the balls are arranged in the mounting holes, and parts of the balls exposed outside the mounting holes are used for rolling contact with the outer surface of the second bending part.

[0008] In a possible implementation, the outer surface of the second bending part is concave and forms a slide groove extending along the length direction, and the slide groove is in rolling contact with the parts of the balls exposed outside the mounting holes.

[0009] In a possible implementation, the end of the first plate body is formed with a connecting portion perpendicular to the first plate body, and an anti-collision block is sleeved on the connecting portion.

[0010] In a possible implementation, the surface of the anti-collision block towards the front end of the first plate body is formed with an arc-shaped portion, a cavity is formed between the arc-shaped portion and the surface of the anti-collision block, and the cavity is filled with an elastic material.

[0011] In a possible implementation, a plurality of fixing holes for fixing the first plate body to a cabinet body are arranged on the first plate body.

[0012] In a possible implementation, a connecting plate is further arranged, one end of the connecting plate extends towards the second plate body and is connected to the second plate body, a plurality of convex strips are sequentially arranged on the connecting plate, and the convex strips enclose a clamping groove for clamping a shelf plate.

[0013] In a possible implementation, a fixing plate for mounting on the cabinet body is further arranged, the fixing plate is located on the outer side of the first plate body, and the first plate body is fixed on the surface of the fixing plate.

[0014] In a possible implementation, the surface of the fixing plate away from the first plate body is provided with a mounting column for plugging with the cabinet body.

[0015] Compared with the prior art, the above technical solution provided by the embodiments of the present application has the following advantages:

[0016] The outer rail is formed by the first plate body and the first bending portion arranged above the edge of the first plate body in the length direction, the mounting groove is formed between the first plate bodies by the first bending portion, then the sliding strip is mounted in the mounting groove, and a plurality of interval-arranged rolling balls are embedded in the sliding strip, so that when the inner rail is connected to the outer rail, the second bending portion of the inner rail realizes rolling contact with the rolling balls, thereby making the sliding of the inner rail relative to the outer rail more smooth, reducing the swing amplitude of the inner rail when being pulled out, and reducing the probability of adverse phenomena such as unsmooth pulling out, sliding rail blockage and jamming. In addition, the rolling balls are embedded in the sliding strip to form an integral whole, so that when the rolling balls need to be replaced, the entire sliding strip can be disassembled from the mounting groove, and the corresponding rolling balls can be replaced, and the structure is simple and can realize quick replacement. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present practical new type and, together with the specification, serve to explain the principles of the present practical new type.

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced as follows. Obviously, for those skilled in the art, other drawings can also be obtained based on these drawings without any creative effort.

[0019] In the drawings:

[0020] Figure 1 is a structural schematic view of one embodiment of the drawer slide rail assembly of the present application;

[0021] Figure 2 is an exploded schematic view of the drawer slide rail assembly of the present application;

[0022] Figure 3 is a structural schematic view of the outer rail of the drawer slide rail assembly of the present application;

[0023] Figure 4 is a structural schematic view of the inner rail of the drawer slide rail assembly of the present application;

[0024] Figure 5 is a structural schematic view of the slide bar and the ball of the drawer slide rail assembly of the present application;

[0025] Figure 6 is a structural schematic view of another embodiment of the drawer slide rail assembly of the present application;

[0026] Figure 7 is a structural schematic view of the connecting plate of the drawer slide rail assembly of the present application.

[0027] Reference signs:

[0028] 100, drawer slide rail assembly; 10, outer rail; 11, first plate body; 11a, connecting portion; 12, first bending portion; 13, mounting groove; 20, inner rail; 21, second plate body; 22, second bending portion; 22a, slide groove; 30, slide bar; 30a, mounting hole; 40, anti-collision block; 50, ball; 60, fixing plate; 70, connecting plate; 80, protrusion; 90, clamping groove. DETAILED DESCRIPTION

[0029] In order to have a clearer understanding of the technical features, objectives and effects of the present application, the specific embodiments of the present application will be described in detail with reference to the drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "upper", "lower", "left", "right", "vertical", "horizontal", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail" and the like are based on the directions or positional relationships shown in the drawings, constructed and operated in a particular direction, and are only for the convenience of describing the present technical solution, and do not indicate that the devices or elements referred to must have a particular direction, so it cannot be understood as a limitation on the present application.

[0030] It should be further pointed out that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing", "setting" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements. When an element is referred to as "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there can be one or more intermediate elements. The terms "first", "second", "third" and the like are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features with "first", "second", "third" and the like can be explicitly or implicitly included one or more of the features. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] In the following description, specific details are presented such as specific system structures, techniques, etc. in order to thoroughly understand the embodiments of the present application, but it should be clear to those skilled in the art that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits and methods are omitted to avoid unnecessary details that hinder the description of the present application.

[0032] Please refer to Figures 1 to 7 The present application provides a smooth sliding drawer slide rail assembly 100 applied to a drawer cabinet, which comprises an outer rail 10 for mounting on the cabinet body and an inner rail 20 for connecting with the drawer.

[0033] Specifically, the outer rail 10 comprises a first plate body 11 extending along a length direction and a first bent portion 12 arranged above an edge of the first plate body 11 along the length direction, the first bent portion 12 is bent along an inner side of the first plate body 11, and a mounting groove 13 is formed between the first bent portion 12 and the first plate body 11, a slide strip 30 extending along the length direction is arranged in the mounting groove 13, and a plurality of spaced balls 50 are embedded in the slide strip 30 along the length direction. The inner rail 20 comprises a second plate body 21 extending along a length direction and a second bent portion 22 arranged above an edge of the second plate body 21 along the length direction, the second bent portion 22 is bent along an inner side of the second plate body 21, and an outer surface of the second bent portion 22 is used to rollingly contact with the balls 50, so that the inner rail 20 can slide relative to the outer rail 10.

[0034] Based on the above technical features, the drawer slide rail assembly 100 is smooth in sliding, the outer rail 10 comprises the first plate body 11 and the first bent portion 12 arranged above the edge of the first plate body 11 along the length direction, and the mounting groove 13 is formed between the first bent portion 12 and the first plate body 11, then the slide strip 30 is mounted in the mounting groove 13, and the plurality of spaced balls 50 are embedded in the slide strip 30, so that when the inner rail 20 is connected with the outer rail 10, the second bent portion 22 of the inner rail 20 is in rolling contact with the balls 50, thereby making the inner rail 20 slide more smoothly relative to the outer rail 10, reducing the swing amplitude of the slide rail when being pulled out, and reducing the probability of adverse phenomena such as unsmooth pulling out, blocking and jamming of the slide rail. In addition, the balls 50 are embedded in the slide strip 30 to form an integral whole, so that when the balls 50 need to be replaced, the entire slide strip 30 can be removed from the mounting groove 13, and the corresponding balls 50 can be replaced, which is simple in structure and can realize quick replacement.

[0035] In a possible implementation, a plurality of mounting holes 30a are arranged on the slide strip 30 along the length direction, the balls 50 are mounted in the mounting holes 30a, and the portions of the balls 50 towards the second bent portion 22 are exposed outside the mounting holes 30a to be in rolling contact with the outer surface of the second bent portion 22.

[0036] Exemplarily, a plurality of mounting holes 30a are arranged on the slide strip 30 along the length direction, and then the balls 50 are mounted in each mounting hole 30a, and the portions of the balls 50 towards the second bent portion 22 are exposed outside the mounting holes 30a, when the inner rail 20 is slidably connected to the outer rail 10, the outer surface of the second bent portion 22 of the inner rail 20 is in abutment with the balls 50, so that the inner rail 20 can slide more smoothly and will not appear adverse phenomena such as blocking and jamming.

[0037] In a possible implementation, the outer surface of the second bending portion 22 is concave, and a sliding groove 22a extending in the length direction is formed in the outer surface. The sliding groove 22a is in rolling contact with the part of the rolling ball 50 exposed outside the mounting hole 30a. In this way, the sliding of the inner rail 20 is smoother, and the problems of deviation or disengagement do not occur.

[0038] In a possible implementation, the end of the first plate body 11 is provided with a connecting portion 11a perpendicular to the first plate body 11. The anti-collision block 40 is sleeved on the connecting portion 11a. An arc-shaped portion is protruded on the surface of the anti-collision block 40 facing the front end of the first plate body 11. A cavity is formed between the arc-shaped portion and the surface of the anti-collision block. The cavity is filled with an elastic material.

[0039] Exemplarily, the elastic material can be an elastic sponge or other materials that can provide elastic force after being impacted, and the present application is not limited in this regard.

[0040] Exemplarily, when the inner rail 20 is pushed to slide relative to the outer rail 10, and the end of the inner rail 20 abuts against the arc-shaped portion of the anti-collision block 40, the elastic material filled in the cavity can provide a certain buffering effect, thereby eliminating the impact caused by the restriction of the inner rail 20, and delaying the service life of the sliding rail.

[0041] In a possible implementation, a plurality of fixing holes for fixing the cabinet are arranged on the first plate body 11. In this way, the first plate body 11 is placed on the surface of the cabinet, so that the fixing holes are aligned with the hole positions of the cabinet. Then, fasteners (such as bolts) are used to sequentially pass through the fixing holes and the hole positions, so that the first plate body 11 and the cabinet are fixedly connected.

[0042] In a possible implementation, the connecting plate 70 is further provided. The end of the connecting plate 70 extending towards the second plate body 21 is connected with the second plate body 21. The connecting plate 70 is provided with protrusions 80 connected in sequence at the head and tail. The protrusions 80 surround the clamping groove 90 for clamping the shelf.

[0043] Exemplarily, when the shelf is installed and connected with the inner rail 20, the end of the connecting plate 70 extending towards the second plate body 21 is fixedly connected with the second plate body 21, so that the connecting plate 70 is fixed on the second plate body 21. Since the connecting plate 70 is provided with the protrusions 80 connected in sequence at the head and tail, the clamping groove 90 is surrounded on the connecting plate 70. Then, one end of the shelf is inserted into the clamping groove 90, so that the shelf and the inner rail 20 are fixedly connected and integrated. Finally, the inner rail 20 is slidably connected with the outer rail 10. That is, the shelf can be connected with the inner rail 20 in a plug-in manner, which is convenient for subsequent disassembly and maintenance of the drawer sliding rail assembly 100.

[0044] In a possible implementation, the fixing plate 60 is further included for being installed on the cabinet body, and the fixing plate 60 is located at the outer side of the first plate body 11, and the first plate body 11 is fixed on the surface of the fixing plate 60.

[0045] Specifically, the surface of the fixing plate 60 away from the first plate body 11 is provided with the mounting column for being plugged with the cabinet body. In this way, after the outer rail 10 is installed on the fixing plate 60, the mounting column provided on the surface of the fixing plate 60 away from the first plate body 11 is plugged into the plugging hole of the cabinet body, so that the outer rail 10 is fixedly installed on the cabinet body, and the structure is simple and convenient to disassemble and assemble.

[0046] It can be understood that the above embodiments only express the preferred embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application; it should be pointed out that for ordinary skilled in the art, the above technical features can be freely combined without departing from the concept of the present application, and several modifications and improvements can be made, which belong to the protection scope of the present application; therefore, any equivalent transformation and modification within the scope of the claims of the present application shall belong to the scope of the claims of the present application.

Claims

1. A smoothly sliding drawer slide assembly, used in a drawer cabinet, characterized in that, The drawer slide rail assembly with smooth sliding function comprises an outer rail for mounting on a cabinet body and an inner rail for connecting with a drawer; The outer rail comprises a first plate body extending along a length direction and a first bent portion provided above a length direction edge of the first plate body, the first bent portion is bent along an inner side of the first plate body, and a mounting groove is formed between the first bent portion and the first plate body, a slide strip extending along a length direction is provided in the mounting groove, and a plurality of spaced balls are embedded in the slide strip along a length direction; The inner rail comprises a second plate body extending along a length direction and a second bent portion provided above a length direction edge of the second plate body, the second bent portion is bent along an inner side of the second plate body, and an outer surface of the second bent portion is used for rolling contact with the balls to enable the inner rail to slide relative to the outer rail.

2. The smooth gliding drawer slide assembly according to claim 1, wherein, A plurality of mounting holes are provided in the slide strip along a length direction, the balls are mounted in the mounting holes, and portions of the balls exposed outside the mounting holes are used for rolling contact with the outer surface of the second bent portion.

3. The smooth gliding drawer slide assembly according to claim 2, wherein, An elongated slide groove is concavely formed in the outer surface of the second bent portion, and the slide groove is in rolling contact with the portions of the balls exposed outside the mounting holes.

4. The smooth gliding drawer slide assembly according to claim 1, wherein, An end of the first plate body is formed with a connecting portion perpendicular to the first plate body, and a bumper block is sleeved on the connecting portion.

5. The smooth gliding drawer slide assembly according to claim 4, wherein, An arc-shaped portion is protrusively formed on a surface of the bumper block facing the front end of the first plate body, a cavity is formed between the arc-shaped portion and the surface of the bumper block, and the cavity is filled with an elastic material.

6. The smooth gliding drawer slide assembly of claim 1, wherein, A plurality of fixing holes are provided on the first plate body for fixing with the cabinet body.

7. The smooth gliding drawer slide assembly of claim 1, wherein, A connecting plate is further provided, one end of the connecting plate extending towards the second plate body is connected with the second plate body, a protruding strip is provided on the connecting plate and connected in sequence at the head and tail, and the protruding strip surrounds a clamping groove for clamping with a shelf plate.

8. The smooth gliding drawer slide assembly of claim 1, wherein, A fixing plate for mounting on the cabinet body is further provided, the fixing plate is located outside the first plate body, and the first plate body is fixed on a surface of the fixing plate.

9. The smooth gliding drawer slide assembly according to claim 8, wherein, An installation column for plug-in connection with the cabinet body is provided on a surface of the fixing plate facing away from the first plate body.

Images