Damping type drawer steel ball sliding rail

Abstract

The utility model discloses a damping type drawer steel ball sliding rail, and particularly relates to the technical field of furniture, the damping type drawer steel ball sliding rail comprises an outer rail and an inner rail which is arranged in an inner cavity of the outer rail in a sliding mode, two ball sliding plates which slide relative to the inner rail are symmetrically installed on the two end walls of the front side of the inner cavity of the outer rail, and a damping assembly is arranged between the outer rail and the inner rail. A locking assembly is installed on the rear side of an inner cavity of the outer rail. According to the damping type drawer steel ball sliding rail, the inner rail is installed in the inner cavity of the outer rail in a sliding mode through the ball sliding plate, when the outer rail and the inner rail are in a closed state, the outer rail and the inner rail are locked through the locking assembly, gravity component force generated by inclination of the ground is overcome, and therefore unnecessary sliding opening and closing between the outer rail and the inner rail are avoided. And when the outer rail and the inner rail are in the opening sliding state, the damping assembly is arranged, so that the outer rail and the inner rail achieve the stable, smooth and automatic sliding opening function, and the use convenience and comfort are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of furniture technology, and in particular to a damped drawer ball bearing slide. Background Technology

[0002] Ball bearing drawer slides are sliding devices used in drawers. They consist of a track, ball bearings, and a slider. The track is installed in the drawer and cabinet, providing support and guidance for sliding. The ball bearings, usually made of alloy steel, are a key component. The slider connects the drawer and the track and has a structure to accommodate the ball bearings. During operation, when the drawer is pushed or pulled, the slider moves along the track, and the rolling ball bearings convert sliding friction into rolling friction, making the drawer slide smoothly. Its characteristics include excellent smoothness, high load-bearing capacity, long service life, and easy installation. It is widely used in drawers of various furniture such as wardrobes, cabinets, and desks.

[0003] Ball bearing slides are widely used in the market due to their smooth sliding and low friction. However, existing ball bearing slides have significant drawbacks. In real-world applications, the varying conditions of the floor at the installation location make it difficult to ensure a perfectly level surface.

[0004] When the ground is slightly tilted, due to the limitations of the existing ball bearing slide structure and design principle, the drawer is prone to slide out in the tilt direction under its own weight and slight external force. This can not only cause items to fall and be damaged, but may also cause accidental injury to people around, bringing great inconvenience and safety hazards to users. Utility Model Content

[0005] The main purpose of this utility model is to provide a damped drawer ball bearing slide that can effectively solve the problems mentioned above.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A damped drawer ball bearing slide includes an outer rail and an inner rail slidably disposed in the inner cavity of the outer rail. The front end and the top end of the outer rail are both open. Two ball bearing slides that slide with the inner rail are symmetrically installed on the two end walls of the front side of the inner cavity of the outer rail. A damping component is provided between the outer rail and the inner rail. A locking component is installed on the rear side of the inner cavity of the outer rail.

[0008] Preferably, the damping assembly includes a first fixing block and a second fixing block. The first fixing block is fixedly installed on the rear side of the middle of the outer rail cavity, and the second fixing block is fixedly installed on the front side of the middle of the inner rail cavity. A sleeve is fixedly installed at one end of the first fixing block near the second fixing block, and a slide rod is fixedly installed at one end of the second fixing block near the first fixing block.

[0009] Preferably, a separator cylinder is fixedly installed in the middle of the inner cavity of the sleeve, and a sliding hole is opened through the top wall of the inner cavity of the separator cylinder to slide with the slide rod. A piston that slides with the inner cavity surface of the slide rod is fixedly installed at one end of the slide rod extending into the inner cavity of the separator cylinder. Two flow damping holes are symmetrically opened through the outer surface of the separator cylinder on both sides away from the middle.

[0010] Preferably, a spring is sleeved on the outer surface of the second fixing block, and the two ends of the spring abut against the first fixing block and the second fixing block respectively.

[0011] Preferably, the locking assembly includes a stop plate and a fixing ring. The stop plate is fixedly installed at the rear end of the inner rail, and the fixing ring is fixedly installed on the right side of the rear part of the outer rail cavity. A connecting rod is fixedly installed at the end of the stop plate away from the inner rail, and a hemispherical push block is fixedly installed at the end of the connecting rod away from the stop plate.

[0012] Preferably, a telescopic rod is slidably installed on the inner surface of the fixed ring, and a wedge block that limits the position of the hemispherical push block is fixedly installed at one end of the telescopic rod near the connecting rod. A second spring is sleeved on the outer surface of the telescopic rod, and the two ends of the second spring abut against the fixed ring and the wedge block respectively.

[0013] Preferably, a limiting ring is fixedly installed on the outer surface of the connecting rod near the hemispherical push block. A wedge-shaped slip ring is slidably installed on the outer surface of the connecting rod between the hemispherical push block and the limiting ring. Two insert rods are symmetrically installed on the end of the wedge-shaped slip ring near the hemispherical push block. Two rubber damping holes adapted to the two insert rods are symmetrically opened on the end of the hemispherical push block near the wedge-shaped slip ring. Springs are respectively sleeved on the outer surface of the two insert rods. The two ends of the two springs respectively abut against the hemispherical push block and the wedge-shaped slip ring.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In this utility model, the inner rail is slidably installed in the inner cavity of the outer rail by setting a ball bearing slide. When the outer rail and the inner rail are in the closed state, the outer rail and the inner rail are locked by setting a locking component to overcome the gravitational force generated by the tilt of the ground, thereby avoiding unnecessary sliding opening and closing between the outer rail and the inner rail, and enhancing stability and reliability.

[0016] 2. In this utility model, when the outer rail and inner rail are in the open sliding state, a damping component is set to enable the outer rail and inner rail to achieve a smooth, automatic sliding opening function, which greatly improves the convenience and comfort of use. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the connection structure between the outer rail and the ball bearing slide in this utility model;

[0019] Figure 3 This is a schematic diagram of the side elevation connection structure of the inner rail in this utility model;

[0020] Figure 4 This is a cross-sectional structural diagram of the damping component in this utility model;

[0021] Figure 5 This is a schematic diagram of the connection structure of the locking component in this utility model.

[0022] In the diagram: 1. Outer rail; 2. Inner rail; 3. Ball bearing slide; 4. Damping assembly; 41. Fixing block one; 42. Fixing block two; 421. Slide rod; 43. Sleeve; 44. Divider cylinder; 441. Slide hole; 442. Fluid flow damping hole; 443. Piston; 45. Spring one; 5. Locking assembly; 51. Support plate; 52. Fixing ring; 521. Telescopic rod; 522. Wedge block; 523. Spring two; 53. Connecting rod; 54. Hemispherical push block; 541. Rubber damping hole; 55. Limiting ring; 56. Wedge slip ring; 561. Insert rod; 562. Spring three. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] like Figures 1-5 As shown, a damped drawer ball bearing slide includes an outer rail 1 and an inner rail 2 that is slidably disposed in the inner cavity of the outer rail 1. The front end and the top end of the outer rail 1 are both open. Two ball bearing slides 3 that slide with the inner rail 2 are symmetrically installed on the two end walls of the front side of the inner cavity of the outer rail 1. A damping component 4 is provided between the outer rail 1 and the inner rail 2. A locking component 5 is installed on the rear side of the inner cavity of the outer rail 1.

[0025] In practical use, the inner rail 2 is slidably installed in the inner cavity of the outer rail 1 by setting a ball bearing slide plate 3. When the outer rail 1 and the inner rail 2 are in the closed state, the outer rail 1 and the inner rail 2 are locked by setting a locking component 5 to overcome the gravitational force generated by the tilt of the ground, thereby avoiding unnecessary sliding opening and closing between the outer rail 1 and the inner rail 2, enhancing stability and reliability. When the outer rail 1 and the inner rail 2 are in the open sliding state, the outer rail 1 and the inner rail 2 achieve a smooth, automatic sliding opening function by setting a damping component 4, which greatly improves the convenience and comfort of use.

[0026] Specifically, the damping component 4 includes a first fixing block 41 and a second fixing block 42. The first fixing block 41 is fixedly installed on the rear side of the middle of the inner cavity of the outer rail 1, and the second fixing block 42 is fixedly installed on the front side of the middle of the inner cavity of the inner rail 2. A sleeve 43 is fixedly installed on one end of the first fixing block 41 near the second fixing block 42, and a slide rod 421 is fixedly installed on one end of the second fixing block 42 near the first fixing block 41.

[0027] A separator cylinder 44 is fixedly installed in the middle of the inner cavity of the sleeve 43. A sliding hole 441 that slides with the slide rod 421 is opened through the top wall of the inner cavity of the separator cylinder 44. A piston 443 that slides with the inner cavity surface is fixedly installed at one end of the slide rod 421 that extends into the inner cavity of the separator cylinder 44. Two flow damping holes 442 are symmetrically opened through the outer surface of the separator cylinder 44 on both sides away from the middle.

[0028] A spring 45 is fitted on the outer surface of the second fixing block 42, and the two ends of the spring 45 abut against the first fixing block 41 and the second fixing block 42 respectively.

[0029] By setting the tension of spring 45, the fixing block 42 at the front end of the inner rail 2 is pushed, causing the inner rail 2 to slide outward automatically.

[0030] When the fixed block 42 slides outward, it pulls the slide rod 421 outward. When the slide rod 421 slides outward from the inner cavity of the partition cylinder 44 from 411, the piston 443 squeezes the damping fluid in the inner cavity of the partition cylinder 44, so that the damping fluid flows outward through the two flow damping holes 442 respectively. In this way, the damping effect reduces the pushing force of the spring 45, so that the inner rail 2 can slide slowly when it slides outward, avoiding adverse phenomena such as rapid pop-out and impact that may be caused by excessive tension of the spring 45. This ensures that the entire sliding process is safe, orderly and quiet, greatly improving the user experience and the reliability of the device operation.

[0031] The hydraulic damping effect used in this solution is an existing technology. Its working principle is as follows: the damping effect is achieved by using the resistance of liquid flowing in a closed space. When an object drives the piston in the device to move, the hydraulic oil flows from one side of the piston to the other through a specific channel. The liquid will generate resistance when flowing through the narrow channel.

[0032] Specifically, the locking assembly 5 includes a stop plate 51 and a fixing ring 52. The stop plate 51 is fixedly installed at the rear end of the inner rail 2, and the fixing ring 52 is fixedly installed on the right side of the rear part of the inner cavity of the outer rail 1. A connecting rod 53 is fixedly installed at the end of the stop plate 51 away from the inner rail 2, and a hemispherical push block 54 is fixedly installed at the end of the connecting rod 53 away from the stop plate 51.

[0033] A telescopic rod 521 is slidably installed on the inner surface of the fixed ring 52. A wedge block 522 that limits the position of the hemispherical push block 54 is fixedly installed on one end of the telescopic rod 521 near the connecting rod 53. A second spring 523 is sleeved on the outer surface of the telescopic rod 521. The two ends of the second spring 523 abut against the fixed ring 52 and the wedge block 522 respectively.

[0034] A limiting ring 55 is fixedly installed on the outer surface of the connecting rod 53 near the hemispherical push block 54. A wedge-shaped slip ring 56 is slidably installed on the outer surface of the connecting rod 53 between the hemispherical push block 54 and the limiting ring 55. Two insert rods 561 are symmetrically installed on one end of the wedge-shaped slip ring 56 near the hemispherical push block 54. Two rubber damping holes 541 that are adapted to the two insert rods 561 are symmetrically opened on one end of the hemispherical push block 54 near the wedge-shaped slip ring 56. Springs 562 are respectively sleeved on the outer surface of the two insert rods 561. The two ends of the two springs 562 are respectively held between the hemispherical push block 54 and the wedge-shaped slip ring 56.

[0035] When the inner rail 2 slides to the rear of the inner cavity of the outer rail 1, the inner rail 2 first pushes the hemispherical push block 54 through the connecting rod 53 on the abutment plate 51. When the hemispherical push block 54 moves backward, it pushes the wedge block 522 upward. After the hemispherical push block 54 passes the wedge block 522, the tension of the set spring 2 523 pushes the wedge block 522 downward to hold the front end of the hemispherical push block 54, thereby locking the hemispherical push block 54 and preventing unnecessary sliding opening and closing of the inner rail 2 in the closed state.

[0036] When the inner rail 2 needs to be opened, push the inner rail 2 backward. At this time, the connecting rod 53 continues to move backward. The wedge-shaped slip ring 56 sliding on the outer surface of the connecting rod 53 slides forward after contacting the limiting ring 55. As the connecting rod 53 continues to move backward, the wedge-shaped slip ring 56 is held by the connecting rod 53, thus pushing the wedge block 522 up during its backward movement. When the wedge-shaped slip ring 56 slides to its final position, the two insert rods 561 on the wedge-shaped slip ring 56 are squeezed into the inner cavity of the two rubber damping holes 541 on the hemispherical push block 54. The inner surface of the two rubber damping holes 541 is glued with a rubber layer. When the two insert rods 561 are squeezed in, the damping effect causes the two insert rods 561 to form a limit through the two rubber damping holes 541. Thus, during the forward movement of the wedge-shaped slip ring 56, the hemispherical push block 54 is driven, releasing the limit between the wedge block 522 and the hemispherical push block 54, allowing the inner rail 2 to slide outward and open.

[0037] Two springs 562 are respectively fitted on the outer surfaces of the two insert rods 561. After the wedge-shaped slip ring 56 pulls the hemispherical push block 54 away from the wedge block 522 and releases it from the limit, the tension of the two springs 562 pushes the wedge-shaped slip ring 56 forward, so that the two insert rods 561 on the wedge-shaped slip ring 56 are slowly pulled out from the rubber damping hole 541, releasing the state of the hemispherical push block 54 and the wedge-shaped slip ring 56 being in contact.

[0038] It is worth mentioning here the wedge-shaped slip ring 56 and the hemispherical push block 54. The circumferential dimension of the end of the wedge-shaped slip ring 56 near the hemispherical push block 54 is equal to the maximum circumferential dimension of the hemispherical push block 54. The circumferential dimension of the middle part of the wedge-shaped slip ring 56 is larger than the circumferential dimensions of its two ends.

[0039] 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 damped drawer ball bearing slide rail, comprising an outer rail (1) and an inner rail (2) slidably disposed within the inner cavity of the outer rail (1), characterized in that: The front end and the top end of the outer rail (1) are open. Two ball bearing slides (3) that slide with the inner rail (2) are symmetrically installed on the front two end walls of the inner cavity of the outer rail (1). A damping component (4) is provided between the outer rail (1) and the inner rail (2). A locking component (5) is installed on the rear side of the inner cavity of the outer rail (1).

2. The damped drawer ball bearing slide rail according to claim 1, characterized in that: The damping assembly (4) includes a first fixing block (41) and a second fixing block (42). The first fixing block (41) is fixedly installed on the rear side of the middle of the inner cavity of the outer rail (1), and the second fixing block (42) is fixedly installed on the front side of the middle of the inner cavity of the inner rail (2). A sleeve (43) is fixedly installed on one end of the first fixing block (41) near the second fixing block (42), and a slide rod (421) is fixedly installed on one end of the second fixing block (42) near the first fixing block (41).

3. The damped drawer ball bearing slide rail according to claim 2, characterized in that: A separator cylinder (44) is fixedly installed in the middle of the inner cavity of the sleeve (43). A sliding hole (441) that slides with the slide rod (421) is opened through the top wall of the inner cavity of the separator cylinder (44). A piston (443) that slides with the inner surface of the slide rod (421) is fixedly installed at one end of the slide rod (421) that extends into the inner cavity of the separator cylinder (44). Two flow damping holes (442) are symmetrically opened through the outer surface of the separator cylinder (44) on both sides away from the middle.

4. The damped drawer ball bearing slide rail according to claim 3, characterized in that: A spring (45) is fitted on the outer surface of the second fixing block (42), and the two ends of the spring (45) abut against the first fixing block (41) and the second fixing block (42) respectively.

5. A damped drawer ball bearing slide rail according to claim 2, characterized in that: The locking assembly (5) includes a stop plate (51) and a fixing ring (52). The stop plate (51) is fixedly installed at the rear end of the inner rail (2). The fixing ring (52) is fixedly installed on the right side of the rear part of the inner cavity of the outer rail (1). A connecting rod (53) is fixedly installed at one end of the stop plate (51) away from the inner rail (2). A hemispherical push block (54) is fixedly installed at one end of the connecting rod (53) away from the stop plate (51).

6. A damped drawer ball bearing slide rail according to claim 5, characterized in that: A telescopic rod (521) is slidably installed on the inner surface of the fixed ring (52). A wedge block (522) that limits the position of the hemispherical push block (54) is fixedly installed on one end of the telescopic rod (521) near the connecting rod (53). A second spring (523) is sleeved on the outer surface of the telescopic rod (521). The two ends of the second spring (523) abut against the fixed ring (52) and the wedge block (522) respectively.

7. A damped drawer ball bearing slide rail according to claim 6, characterized in that: A limiting ring (55) is fixedly installed on the outer surface of the connecting rod (53) near the hemispherical push block (54). A wedge-shaped slip ring (56) is slidably installed on the outer surface of the connecting rod (53) between the hemispherical push block (54) and the limiting ring (55). Two insert rods (561) are symmetrically installed on one end of the wedge-shaped slip ring (56) near the hemispherical push block (54). Two rubber damping holes (541) that are adapted to the two insert rods (561) are symmetrically opened on one end of the hemispherical push block (54) near the wedge-shaped slip ring (56). Springs (562) are respectively sleeved on the outer surface of the two insert rods (561). The two ends of the two springs (562) abut against the hemispherical push block (54) and the wedge-shaped slip ring (56) respectively.

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