Three-section hidden steel ball sliding rail for drawer

Abstract

The utility model discloses a three-section hidden type steel ball sliding rail for a drawer, and particularly relates to the technical field of sliding rails, the three-section hidden type steel ball sliding rail comprises a first sliding rail, a second sliding rail is connected to the inner surface of the first sliding rail in a sliding mode, a steel ball sliding rail is connected to the inner surface of the second sliding rail in a sliding mode, and a fixing assembly is arranged at the left end of the first sliding rail. Roller assemblies are symmetrically arranged on the front portions of the upper end and the lower end of the second sliding rail, blocking assemblies are arranged on the rear portion of the left side of the inner surface of the first sliding rail and the rear portion of the left side of the inner surface of the second sliding rail, and a mounting assembly is arranged at the right end of the steel ball sliding rail. According to the three-section hidden type steel ball sliding rail for the drawer, the two roller assemblies are arranged, so that the smoothness of completely sliding the sliding rail II out of the sliding rail I can be improved, the use experience of a user is improved, friction between the sliding rail II and the inner surface of the sliding rail II when the sliding rail II slides in and out of the sliding rail I is reduced, and the service life of the sliding rail II is prolonged. The loss between the sliding rail I and the sliding rail II is reduced, and the service life of the sliding rail I and the sliding rail II is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to slide rail technical field, especially in three section hidden type steel ball slide rail for drawer. BACKGROUND

[0002] Three section hidden type steel ball slide rail is a furniture hardware fitting, because its excellent performance and beautiful appearance, is widely used in various furniture, such as wardrobe, desk, office table, cabinet etc.;It is also often used in the drawer, cabinet and other furniture that need to be frequently pushed and pulled.

[0003] Three section hidden type steel ball slide rail is a furniture hardware fitting with excellent performance, beautiful and practical, which can bring great convenience and comfort to the use of furniture.

[0004] Chinese patent publication No. CN208108602U provides a slide rail structure for drawer, which has reasonable structure and can avoid accidental damage to the drawer and the door body caused by excessive pulling of the drawer. It includes a sliding connection between the first slide rail and the second slide rail, characterized in that: a slide rail spring is fixed on the inner surface of the first slide rail facing the second slide rail, the slide rail spring includes a spring body, a through slot is provided in the middle of the spring body, and a protrusion is provided on both sides of the spring body. A stop block is fixed on the surface of the second slide rail facing the first slide rail, a limiting block is provided on the stop block corresponding to the protrusion of the slide rail spring, a slot is provided between the limiting blocks for the spring body to pass through, and as the first slide rail moves relative to the second slide rail, the limiting block of the stop block presses the protrusion of the slide rail spring, causing the spring body to deform and bend towards the through slot, allowing the protrusion to pass through the slot, and the first slide rail can be completely pulled out of the second slide rail.

[0005] The above-mentioned device is only a simple sliding connection between the first slide rail and the second slide rail. This sliding connection method makes the sliding process between the first slide rail and the second slide rail not smooth enough, and causes serious wear and tear, which easily reduces the service life of the first slide rail and the second slide rail. UTILITY MODEL CONTENTS

[0006] The main purpose of the utility model is to provide a three-section hidden type steel ball slide rail for drawer, which can effectively solve the problem of serious wear and tear of the sliding connection method between the slide rails, and easily reduce the service life of the slide rails.

[0007] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is:

[0008] Three section hidden steel ball slide rail for drawer, including slide rail one, the inner surface of slide rail one is slidably connected with slide rail two, the inner surface of slide rail two is slidably connected with steel ball slide rail, the left end of slide rail one is provided with fixed assembly, the front parts of the upper and lower ends of slide rail two are symmetrically provided with roller assembly, the rear left sides of the inner surfaces of slide rail one and slide rail two are all provided with blocking assembly, and the right end of steel ball slide rail is provided with mounting assembly.

[0009] Preferably, the fixed assembly comprises a fixed plate, the fixed plate is fixedly connected with the left end of the slide rail one, and four circular holes one are linearly arranged on the upper and lower parts of the left end of the fixed plate.

[0010] Preferably, the roller assembly comprises a cylinder, an arc-shaped groove is formed in the upper middle part of the inner surface of the slide rail one, an installation groove is formed in the front middle part of the upper end of the slide rail two, the cylinder is fixedly connected with the inner surfaces of the left and right sides of the installation groove, a roller is rotatably connected with the outer surface of the cylinder, and the roller is slidably connected with the inner surface of the arc-shaped groove.

[0011] Preferably, the blocking assembly comprises an arc-shaped extrusion strip, the arc-shaped extrusion strip is fixedly connected with the middle part of the left end of the slide rail two, a rectangular groove is formed in the rear left side of the inner surface of the slide rail one, springs are fixedly connected with the inner surface of the left side of the rectangular groove in a symmetrical mode, and an arc-shaped block is fixedly connected with the right ends of the two springs.

[0012] Preferably, the inner surface of the left side of the rectangular groove is fixedly connected with telescopic rods in a symmetrical mode, the two telescopic rods are respectively sleeved with the outer surfaces of the two springs, and the two telescopic rods are fixedly connected with the left end of the arc-shaped block.

[0013] Preferably, the mounting assembly comprises a connecting plate, the connecting plate is fixedly connected with the right end of the steel ball slide rail, and four positioning assemblies are linearly arranged on the lower end of the connecting plate.

[0014] Preferably, the positioning assembly comprises a positioning block, the positioning block is fixedly connected with the rear part of the lower end of the connecting plate, and a circular hole two is formed in the right part of the upper end of the positioning block in a symmetrical mode.

[0015] Compared with the prior art, the three section hidden steel ball slide rail for drawer has the following beneficial effects:

[0016] 1、The two roller assemblies provided by the utility model can increase the smoothness of sliding the second slide rail out of the first slide rail, thereby improving the use experience of users, reducing the friction between the second slide rail and the inner surface of the second slide rail when the second slide rail slides in and out of the first slide rail, reducing the loss between the first slide rail and the second slide rail, and improving the service life of the first slide rail and the second slide rail; the fixing assembly and the mounting assembly are provided, so that the work of fixing the device on a drawer and a cabinet becomes simple and convenient, and convenience is provided for the installation process of installers.

[0017] 2、The spring provided by the utility model makes the two arc-shaped blocks have space to be respectively retracted into the two rectangular grooves, so that the two arc-shaped blocks cannot hinder the process of sliding the second slide rail out of the first slide rail and sliding the steel ball slide rail out of the second slide rail; meanwhile, the two arc-shaped extrusion strips no longer extrude the arc-shaped blocks on the same side, at this time, under the action of the springs on the same side, the two arc-shaped blocks are respectively out of the two rectangular grooves and respectively block the front ends of the two arc-shaped extrusion strips. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is an overall structure appearance schematic view of the utility model;

[0019] Figure 2 It is an overall structure explosion schematic view of the utility model;

[0020] Figure 3 It is a fixing assembly structure schematic view of the utility model;

[0021] Figure 4 It is a roller assembly structure section schematic view of the utility model;

[0022] Figure 5 It is a blocking assembly structure section schematic view of the utility model;

[0023] Figure 6 It is a Figure 5 structure schematic view of the utility model at A;

[0024] Figure 7 It is a mounting assembly structure schematic view of the utility model.

[0025] In the drawing: 1, the first slide rail; 2, the second slide rail; 3, the steel ball slide rail; 4, the fixing assembly; 41, the fixed plate; 42, the round hole one; 5, the roller assembly; 51, the arc groove; 52, the mounting groove; 53, the cylinder; 54, the roller; 6, the blocking assembly; 61, the rectangular groove; 62, the arc-shaped extrusion strip; 63, the arc-shaped block; 64, the telescopic rod; 65, the spring; 7, the mounting assembly; 71, the connecting plate; 72, the positioning assembly; 721, the positioning block; 722, the round hole two. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0027] As shown in Figure 1 and Figure 2 A three-section hidden steel ball slide rail for a drawer, comprising a slide rail one 1, a slide rail two 2 slidingly connected to the inner surface of the slide rail one 1, a steel ball slide rail 3 slidingly connected to the inner surface of the slide rail two 2, a fixing assembly 4 arranged at the left end of the slide rail one 1, a roller assembly 5 symmetrically arranged at the front of the upper and lower ends of the slide rail two 2, a blocking assembly 6 arranged at the left rear of the inner surface of the slide rail one 1 and the left rear of the inner surface of the slide rail two 2, and an installation assembly 7 arranged at the right end of the steel ball slide rail 3.

[0028] The two blocking assemblies 6 have the same structure, are arranged at the same positions of the slide rail one 1 and the slide rail two 2, and have the same functions.

[0029] The steel ball slide rail 3 and the slide rail two 2 are provided with symmetrically arranged steel ball structures, the structure and installation mode of the steel ball structure, and the installation positions in the steel ball slide rail 3 and the slide rail two 2 are all mature technologies in the prior art.

[0030] The two same devices constitute a complete assembly, and are fixed at the left and right sides of the drawer.

[0031] In specific implementation, the device is fixed on the inner wall of a cabinet in which the drawer is to be installed by using the fixing assembly 4 and the matching fixing screws, and then the device is fixed on one side of the drawer by using the installation assembly 7 and the matching fixing screws, so that the device is installed on the drawer.

[0032] When the slide rail two 2 slides into the slide rail one 1, the slide rail two 2 cannot slide out of the slide rail one 1 at will under the action of the blocking assembly 6 in the slide rail one 1, and when the steel ball slide rail 3 slides into the slide rail two 2, the steel ball slide rail 3 cannot slide out of the slide rail two 2 at will under the action of the blocking assembly 6 in the slide rail two 2.

[0033] After the installation is completed, the drawer is pulled out, the slide rail two 2 slides out of the slide rail one 1, the steel ball slide rail 3 slides out of the slide rail one 1, the existence of the two roller assemblies 5 makes the slide rail two 2 slide out of the slide rail one 1 more smoothly, and the existence of the steel ball structure arranged in the steel ball slide rail 3 and the slide rail two 2 makes the steel ball slide rail 3 slide out of the slide rail one 1 more smoothly.

[0034] After the slide rail two 2 is completely slid out of the slide rail one 1 and the steel ball slide rail 3 is completely slid out of the slide rail one 1, the slide rail two 2 cannot slide back into the slide rail one 1 and the steel ball slide rail 3 cannot slide back into the slide rail two 2 under the blocking action of the two blocking assemblies 6.

[0035] Specifically, in order to facilitate the installation of the device in the drawer and improve the smoothness of the sliding between the slide rails, referring to Figure 3 , the fixing assembly 4 comprises a fixed plate 41, the fixed plate 41 is fixedly connected with the left end of the slide rail one 1, and four circular holes one 42 are symmetrically and linearly arranged on the upper and lower parts of the left end of the fixed plate 41.

[0036] Further referring to Figure 4 , the roller assembly 5 comprises a cylinder 53, an arc-shaped groove 51 is formed in the upper middle part of the inner surface of the slide rail one 1, an installation groove 52 is formed in the front middle part of the upper end of the slide rail two 2, the cylinder 53 is fixedly connected with the inner surfaces of the left and right sides of the installation groove 52, a roller 54 is rotatably connected with the outer surface of the cylinder 53, and the roller 54 is slidably connected with the inner surface of the arc-shaped groove 51.

[0037] Further referring to Figure 5 and Figure 6 , the blocking assembly 6 comprises an arc-shaped extrusion strip 62, the arc-shaped extrusion strip 62 is fixedly connected with the left middle part of the slide rail two 2, a rectangular groove 61 is formed in the left rear part of the inner surface of the slide rail one 1, springs 65 are fixedly connected with the left side of the inner surface of the rectangular groove 61 in a symmetric manner, and the right ends of the two springs 65 are fixedly connected with an arc-shaped block 63; telescopic rods 64 are fixedly connected with the left side of the inner surface of the rectangular groove 61 in a symmetric manner, the two springs 65 are respectively sleeved on the outer surfaces of the two telescopic rods 64, and the two telescopic rods 64 are fixedly connected with the left end of the arc-shaped block 63.

[0038] Further referring to Figure 7 , the installation assembly 7 comprises a connecting plate 71, the connecting plate 71 is fixedly connected with the right end of the steel ball slide rail 3, and four positioning assemblies 72 are linearly arranged on the lower end of the connecting plate 71; the positioning assembly 72 comprises a positioning block 721, the positioning block 721 is fixedly connected with the rear part of the lower end of the connecting plate 71, and a circular hole two 722 is symmetrically formed in the right front and rear parts of the upper end of the positioning block 721.

[0039] In a specific implementation, the fixing plate 41 is fixed on the inner wall of the cabinet where the drawer is installed by using the fixing screws and the positioning effect of the eight round holes 42.

[0040] Then the four positioning blocks 721 are in close contact with the lower left end of the drawer, and the connecting plate 71 is in close contact with the lower left end of the drawer. Then the connecting plate 71 and the four positioning assemblies 72 are fixed on the drawer by using the fixing screws and the positioning effect of the eight round holes 722, thereby completing the fixing of the device on the drawer and the cabinet. The process is simple and convenient, which provides convenience for the installation process of the installer.

[0041] When the slide rail two 2 is completely in the slide rail one 1, and the steel ball slide rail 3 is completely in the slide rail two 2, the two arc-shaped blocks 63 are outside the rectangular grooves 61, respectively blocking the rear ends of the two arc-shaped extruded strips 62, so that the slide rail two 2 cannot be randomly slid out of the slide rail one 1, and the steel ball slide rail 3 cannot be randomly slid out of the slide rail two 2. In this way, the stability of the drawer in the cabinet can be ensured, and the drawer cannot be randomly slid out of the cabinet, which causes a bad user experience.

[0042] When the drawer is slid out of the cabinet, the slide rail two 2 is slid out of the slide rail one 1, and the steel ball slide rail 3 is slid out of the slide rail two 2. During the sliding process, the two arc-shaped extruded strips 62 will respectively extrude the two arc-shaped blocks 63, so that the two arc-shaped blocks 63 are respectively retracted into the two rectangular grooves 61. At this time, the two springs 65 on the same side are in a compressed state.

[0043] After the slide rail two 2 is completely slid out of the slide rail one 1, and the steel ball slide rail 3 is completely slid out of the slide rail two 2, the two arc-shaped extruded strips 62 no longer extrude the arc-shaped blocks 63 on the same side. At this time, under the action of the two springs 65 on the same side, the two arc-shaped blocks 63 are respectively out of the two rectangular grooves 61, and block the front ends of the two arc-shaped extruded strips 62, thereby preventing the slide rail two 2 from being randomly slid back into the slide rail one 1, and the steel ball slide rail 3 from being randomly slid back into the slide rail two 2, so that the completely extracted drawer is randomly slid back into the cabinet, thereby causing a bad user experience.

[0044] The telescopic rod 64 provides support to the spring 65, so that when the spring 65 is deformed under stress, the arc-shaped block 63 will not shake randomly.

[0045] During the process of sliding the slide rail two 2 out of the slide rail one 1, the two rollers 54 are respectively slid in the two circular arc grooves 51, and the friction generated causes the two rollers 54 to rotate. In this way, the smoothness of sliding the slide rail two 2 out of the slide rail one 1 can be improved, thereby improving the user experience.

[0046] At the same time, it reduces the friction between slide rail 2 and the inner surface of slide rail 2 when slide rail 1 slides in and out, thereby reducing the wear between slide rail 1 and slide rail 2 and improving the service life of slide rail 1 and slide rail 2.

[0047] In this scheme, two sets of steel ball structures are set between slide rail 2 and steel ball slide rail 3, which have the same function and beneficial effect as the two blocking components 6.

[0048] The working principle of this utility model is as follows:

[0049] Using the matching fixing screws, fix the fixing plate 41 to the inner wall of the cabinet where the drawer needs to be installed, and fix the connecting plate 71 and the four positioning components 72 to one side of the drawer.

[0050] When slide rail 2 is completely inside slide rail 1 and ball bearing slide rail 3 is completely inside slide rail 2, both arc blocks 63 are outside the rectangular groove 61, which respectively block the rear ends of the two arc extrusion strips 62.

[0051] When the drawer is slid out of the cabinet, slide rail 2 slides out from slide rail 1, and ball bearing slide rail 3 slides out from slide rail 2. During this process, the two arc-shaped extrusion strips 62 will extrude the two arc-shaped blocks 63 respectively, causing the two arc-shaped blocks 63 to retract into the two rectangular slots 61 respectively. After slide rail 2 slides out completely from slide rail 1 and ball bearing slide rail 3 slides out completely from slide rail 2, under the action of the two springs 65 on the same side, the two arc-shaped blocks 63 come out from the two rectangular slots 61 respectively, which respectively block the front end of the two arc-shaped extrusion strips 62.

[0052] When it is necessary to slide slide rail 2 back to slide rail 1 and ball bearing slide rail 3 back to slide rail 2, the two arc-shaped extrusion bars 62 will also extrude the arc-shaped blocks 63 on the same side, causing the two arc-shaped blocks 63 to retract into the two rectangular grooves 61 respectively. After slide rail 2 is completely slid back into slide rail 1 and ball bearing slide rail 3 is completely slid back into slide rail 2, the two arc-shaped extrusion bars 62 no longer extrude the arc-shaped blocks 63 on the same side. At this time, the two arc-shaped blocks 63 move to the outside of the rectangular grooves 61 under the reaction force of the two springs 65 on the same side, thereby blocking the rear ends of the two arc-shaped extrusion bars 62 respectively.

[0053] During the process of sliding the second slide rail 2 completely out of the first slide rail 1, the two rollers 54 slide in the two circular grooves 51 respectively, and the resulting friction causes both rollers 54 to rotate, making the process smoother.

[0054] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A three-section concealed ball bearing slide for a drawer, comprising slide one (1), characterized in that: The inner surface of the slide rail 1 (1) is slidably connected to the slide rail 2 (2), and the inner surface of the slide rail 2 (2) is slidably connected to the ball bearing slide rail (3). A fixing component (4) is provided at the left end of the slide rail 1 (1), and roller components (5) are symmetrically provided at the front of the upper and lower ends of the slide rail 2 (2). A blocking component (6) is provided at the rear left side of the inner surface of the slide rail 1 (1) and the rear left side of the inner surface of the slide rail 2 (2). An installation component (7) is provided at the right end of the ball bearing slide rail (3).

2. The three-section concealed ball bearing slide for a drawer according to claim 1, characterized in that: The fixing component (4) includes a fixing plate (41), which is fixedly connected to the left end of the slide rail (1). The left end of the fixing plate (41) has four circular holes (42) arranged in a linear array with symmetrical upper and lower parts.

3. A three-section concealed ball bearing slide for a drawer according to claim 1, characterized in that: The roller assembly (5) includes a cylinder (53), an arc groove (51) is provided in the middle of the upper side of the inner surface of the slide rail one (1), and an installation groove (52) is provided in the middle of the front side of the upper end of the slide rail two (2). The cylinder (53) is fixedly connected to the left and right sides of the inner surface of the installation groove (52), and a roller (54) is rotatably connected to the outer surface of the cylinder (53). The roller (54) is slidably connected to the inner surface of the arc groove (51).

4. A three-section concealed ball bearing slide for a drawer according to claim 1, characterized in that: The blocking component (6) includes an arc-shaped extrusion strip (62), which is fixedly connected to the middle of the left end of the slide rail two (2). A rectangular groove (61) is provided on the rear left side of the inner surface of the slide rail one (1). Springs (65) are symmetrically fixedly connected to the left side of the inner surface of the rectangular groove (61). An arc-shaped block (63) is fixedly connected to the right end of the two springs (65).

5. A three-section concealed ball bearing slide for a drawer according to claim 4, characterized in that: Telescopic rods (64) are symmetrically fixedly connected to the left side of the inner surface of the rectangular groove (61). Two springs (65) are respectively sleeved on the outer surface of the two telescopic rods (64). Both telescopic rods (64) are fixedly connected to the left end of the arc-shaped block (63).

6. A three-section concealed ball bearing slide for a drawer according to claim 1, characterized in that: The mounting assembly (7) includes a connecting plate (71), which is fixedly connected to the right end of the ball bearing slide rail (3). Four positioning components (72) are arranged in a linear array at the lower end of the connecting plate (71).

7. A three-section concealed ball bearing slide for a drawer according to claim 6, characterized in that: The positioning component (72) includes a positioning block (721), which is fixedly connected to the lower rear part of the connecting plate (71). The upper right part of the positioning block (721) is provided with two circular holes (722) symmetrically arranged.

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