Adjustable tension type buffer damper for furniture drawer sliding rail

Abstract

The invention relates to the technical field of furniture accessories, in particular to an adjustable tension type buffer damper for a furniture drawer sliding rail. The sliding rail structure comprises a drawer body slidably connected into a cabinet body, sliding rail bodies are fixedly connected between the two sides, away from each other, of the drawer body and the inner walls of side plates of the cabinet body, and the sliding rail bodies at least comprise outer rails fixedly connected to the inner walls of the side plates of the cabinet body, inner rails fixedly connected to the side walls of the drawer body and middle rails; according to the adjustable tension type buffer damper for the furniture drawer sliding rail, when the drawer body slides towards the interior of a cabinet body, the damper body is used for increasing the sliding resistance of the drawer body, and when the drawer body completely slides into the cabinet body and no external force is applied to the drawer body, the damper body is used for locking the position of the drawer body in the cabinet body; when the drawer body slides outwards from the inside of the cabinet body under the action of external force, the damper body is used for reducing the force required to be applied to pull the drawer body.

Description

Technical Field

[0001] The present invention relates to the technical field of furniture accessories, and more specifically, to an adjustable tensile buffer damper for a furniture drawer slide rail. Background Art

[0002] In order to ensure the stability of a furniture drawer during the process of opening and closing and sliding, slide rails are usually provided between the drawer and the furniture. The existing back end of the drawer (the end inserted into the drawer chute) is generally configured as a hollow structure. During the process of opening and closing the drawer with the help of the slide rail, if the drawer is closed too forcefully, the items stored in the drawer will "jump" out of the drawer into the interior of the drawer chute. Especially for a cabinet with a large number of drawers, it is not easy to take out the items that have fallen into the interior of its drawer chute.

[0003] In order to solve the problem that items are likely to fall out of the drawer when the drawer is closed too forcefully as mentioned above, a buffer damper is generally provided on the slide rail of the existing drawer to provide a certain resistance during the process of closing the drawer, so that the drawer can maintain smoothness and stability during the closing process. The setting of the buffer damper solves the problem that the internal items fall due to excessive thrust when the drawer is closed. However, during the process of transporting the cabinet, the drawer with relatively smooth sliding is likely to slide out of the drawer chute automatically, which is likely to damage the items.

[0004] In view of this, we propose an adjustable tensile buffer damper for a furniture drawer slide rail to improve the deficiencies in the prior art. Summary of the Invention

[0005] The purpose of the present invention is to provide an adjustable tensile buffer damper for a furniture drawer slide rail to solve the problems raised in the above background art.

[0006] To achieve the above object, the present invention provides an adjustable tensile buffer damper for a furniture drawer slide rail, including a drawer body slidably connected to the interior of the cabinet. Fixed connection slide rail bodies are provided between the two opposite sides of the drawer body and the inner walls of the cabinet side plates. The slide rail body at least includes an outer rail fixedly connected to the inner wall of the cabinet side plate, an inner rail fixedly connected to the side wall of the drawer body, and a middle rail. The outer side of the middle rail is slidably connected to the inner side of the outer rail, and the outer side of the inner rail is slidably connected to the inner side of the middle rail. A damper body is provided between the outer rail and the middle rail;

[0007] The slide rail body is used to make the drawer body slide back and forth in the cabinet;

[0008] When the drawer body slides towards the interior of the cabinet, the damper body is used to increase the resistance when the drawer body slides;

[0009] When the drawer body is fully slid into the cabinet body and no external force is applied to the drawer body, the damper body is used to lock the position of the drawer body in the cabinet body;

[0010] When the drawer body slides outwards from the cabinet body under the action of an external force, the damper body is used to reduce the force required to pull the drawer body.

[0011] As a further improvement of this technical solution, the slide rail body further includes two groups of sliding members, one group of the sliding members is slidably connected between the outer rail and the middle rail, and the other group of the sliding members is slidably connected between the inner rail and the middle rail.

[0012] As a further improvement of this technical solution, the sliding member includes a sliding member, and a plurality of balls are rotatably connected inside the sliding member, and the diameter of the balls is greater than the thickness of the connecting seat.

[0013] As a further improvement of this technical solution, the damper body includes a retaining piece fixedly connected to the end of the inner rail, a moving seat fixedly connected to one end of the middle rail close to the retaining piece, and a plurality of elastic members fixedly connected to one side of the retaining piece close to the moving seat. A gasket is slidably connected to each elastic member, and a spring is sleeved between the retaining piece and the gasket around the elastic member.

[0014] As a further improvement of this technical solution, a plurality of sockets are fixedly connected to one end of the moving seat close to the retaining piece, and a jack is opened on each socket.

[0015] As a further improvement of this technical solution, the elastic member includes a pair of elastic pieces symmetrically arranged up and down, there is a distance between the two elastic pieces, and a locking piece is fixedly connected to one end of each elastic piece away from the retaining piece. The inner diameter of the locking piece is equal to the inner diameter of the elastic piece, and the outer diameter of the locking piece is equal to the outer diameter of the elastic piece.

[0016] As a further improvement of this technical solution, the radius of the jack gradually decreases from the end close to the retaining piece to the end away from the retaining piece.

[0017] Compared with the prior art, the beneficial effects of the present invention:

[0018] In the adjustable-tension buffer damper for a furniture drawer slide rail, when the drawer body slides into the cabinet body, the damper body is used to increase the resistance when the drawer body slides. When the drawer body is fully slid into the cabinet body and no external force is applied to the drawer body, the damper body is used to lock the position of the drawer body in the cabinet body. When the drawer body slides outwards from the cabinet body under the action of an external force, the damper body is used to reduce the force required to pull the drawer body. Description of the Drawings

[0019] Figure 1Schematic diagram of the overall structure of the present invention;

[0020] Figure 2 Schematic cross-sectional view of the slide rail body of the present invention;

[0021] Figure 3 For the present invention Figure 2 Enlarged view of part A in;

[0022] Figure 4 Structural diagram one of the damper body of the present invention;

[0023] Figure 5 Structural diagram two of the damper body of the present invention;

[0024] Figure 6 Structural diagram three of the damper body of the present invention;

[0025] Figure 7 For the present invention Figure 4 Enlarged view of part B in;

[0026] Figure 8 Top view structural diagram of the elastic member of the present invention.

[0027] The meanings of each label in the figure are as follows:

[0028] 100, drawer body;

[0029] 200, slide rail body; 210, outer rail; 220, inner rail; 230, middle rail; 240, sliding member; 241, connecting seat; 242, ball;

[0030] 300, damper body; 310, retaining piece; 320, moving seat; 330, elastic member; 331, elastic piece; 332, locking piece; 340, socket; 341, jack; 350, gasket; 360, spring. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] In order to increase the stability of the drawer body 100 when sliding in the cabinet and increase the utilization rate of the internal space of the drawer body 100, the track (i.e., the slide rail body 200 to be described below) used to connect the drawer body 100 and the cabinet adopts a "inner-middle-outer" three-section structural design.

[0033] Please refer toFigure 1 and Figure 2 As shown in Figure 2 , the purpose of this embodiment is to provide an adjustable tensile buffer damper for a furniture drawer slide rail, which includes a drawer body 100 slidably connected inside a cabinet. Fixed connection rails 200 are provided between the two opposite sides of the drawer body 100 and the inner walls of the cabinet side plates. The rail body 200 at least includes an outer rail 210 fixedly connected to the inner wall of the cabinet side plate, an inner rail 220 fixedly connected to the side wall of the drawer body 100, and a middle rail 230. The outer side of the middle rail 230 is slidably connected to the inner side of the outer rail 210, and the outer side of the inner rail 220 is slidably connected to the inner side of the middle rail 230. A damper body 300 is provided between the outer rail 210 and the middle rail 230;

[0034] The rail body 200 is used to make the drawer body 100 slide back and forth inside the cabinet;

[0035] When the drawer body 100 slides into the cabinet, the damper body 300 is used to increase the resistance when the drawer body 100 slides;

[0036] When the drawer body 100 slides completely into the cabinet and no external force is applied to the drawer body 100, the damper body 300 is used to lock the position of the drawer body 100 inside the cabinet;

[0037] When the drawer body 100 slides out of the cabinet under the action of an external force, the damper body 300 is used to reduce the force required to pull the drawer body 100.

[0038] To increase the stability when the drawer body 100 drives the inner rail 220 to slide inside the outer rail 210, the rail body 200 in this application adopts a three - section ball 242 track structure.

[0039] As Figure 2 and Figure 3 shown, the rail body 200 further includes two sets of sliding members 240. One set of sliding members 240 is slidably connected between the outer rail 210 and the middle rail 230, and the other set of sliding members 240 is slidably connected between the inner rail 220 and the middle rail 230.

[0040] Moreover, the sliding member 240 includes a sliding member 240. A plurality of balls 242 are rotatably connected inside the sliding member 240, and the diameter of the balls 242 is greater than the thickness of the connecting seat 241.

[0041] The advantages of the above - mentioned settings are as follows: First, the three - section track allows the drawer body 100 to be completely pulled out of the cabinet, making the internal space of the drawer body 100 completely exposed, facilitating users to take and place items deep inside the drawer body 100. For some deeper drawer bodies 100, it can greatly improve the space utilization rate and avoid the problem that items are difficult to reach at the rear of the drawer body 100.

[0042] Secondly, the slide rail body 200 in the present invention is composed of an inner rail 220, a middle rail 230 and an outer rail 210. Compared with the two-section rail, with the support and sharing of the middle rail 230, the overall structure of the rail is more stable and can bear a greater weight.

[0043] Moreover, the middle rail 230 and a plurality of balls 242 are added, which makes the force distribution more uniform and the sliding more stable and smooth during the pulling and pushing process of the drawer body 100, reducing the phenomena of jamming and shaking, and bringing a better operation feel to the user.

[0044] It should be disclosed that the external force applied when pushing and pulling the drawer body 100 mainly depends on the frictional forces between the outer rail 210, the inner rail 220 and the middle rail 230 and the balls 242 respectively when they slide relatively. As the use time and the number of times of pushing and pulling the drawer body 100 increase, the frictional forces between the balls 242 and the components of the outer rail 210, the inner rail 220 and the middle rail 230 will increase (the feedback to the user's hand is an increase in the blocking feeling when pushing and pulling the drawer body 100). At this time, the drawer body 100 can be pulled out to the maximum distance from the drawer chute, and then lubricating oil is applied to each ball 242 structure to reduce the pulling force required by the user when pushing and pulling the drawer body 100.

[0045] The back of the existing drawer body 100 (the end inserted into the drawer chute) is generally set as a hollow structure. During the process of opening and closing the drawer body 100 with the help of the slide rail body 200, if the closing force is too strong, the items stored in the drawer body 100 will "jump" out of the drawer body 100 into the drawer chute. Especially for the cabinet with a large number of layers of the drawer body 100, the items falling into the drawer chute are not easy to take out. Therefore, a damper body 300 for buffering is arranged between the inner rail 220 and the middle rail 230.

[0046] In Figures 4 - 6 it, the damper body 300 includes a retaining piece 310 fixedly connected to the end of the inner rail 220, a moving seat 320 fixedly connected to one end of the middle rail 230 close to the retaining piece 310, and a plurality of elastic members 330 fixedly connected to one side of the retaining piece 310 close to the moving seat 320. A gasket 350 is slidably connected to each elastic member 330, and a spring 360 is sleeved between the retaining piece 310 and the gasket 350 around the elastic member 330.

[0047] It should be noted that a plurality of sockets 340 are fixedly connected to one end of the moving seat 320 close to the retaining piece 310, and a jack 341 is opened on each socket 340.

[0048] When the drawer body 100 is pushed into the drawer slot, the outer rail 210 on the side panel of the drawer body 100 pushes the middle rail 230 to slide into the drawer slot. Correspondingly, the middle rail 230 drives the upper movable seat 320 to approach the blocking piece 310 until the socket 340 contacts the elastic member 330. As the elastic member 330 is inserted into the insertion hole 341, the gasket 350 stays outside the insertion hole 341 and is blocked by the surface of the socket 340, and the gasket 350 and the elastic member 330 slide relative to each other. That is to say, the spring 360 is squeezed by the gasket 350 and the blocking piece 310 approaching each other and its length is reduced. When the spring 360 is compressed, the deformation resistance generated by it prevents the drawer body 100 from sliding too fast, thereby avoiding the situation where the drawer body 100 slides too fast and collides with the cabinet, causing the items to fall into the drawer slot.

[0049] When the drawer body 100 located in the drawer slide needs to be pulled out, the elastic member 330 will gradually slide out of the insertion hole 341. At this time, the restoring force of the spring 360 will push the gasket 350 to reset on the surface of the elastic member 330. Therefore, this restoring force plays a driving role when pulling the drawer body 100, thereby reducing the pulling force that the user needs to apply when pulling the drawer body 100 out of the drawer slide.

[0050] The setting of the damper body 300 solves the problem of the drawer body 100 falling due to excessive thrust when closing the drawer body 100. However, during the transportation of the cabinet, the drawer body 100, which slides relatively smoothly, is easy to slide out of the drawer slide slot automatically, and the items are easy to be broken. Therefore, the mechanism of the damper body 300 is further optimized.

[0051] Based on the above description of the damper body 300, Figure 7 and Figure 8 The optimized structure of the elastic member 330 is further disclosed. The elastic member 330 includes a pair of spring pieces 331 symmetrically arranged in the upper and lower parts, and a spacing is provided between the two spring pieces 331. One end of each spring piece 331 away from the blocking piece 310 is fixedly connected to a locking piece 332. The inner diameter of the locking piece 332 is equal to the inner diameter of the spring piece 331, and the outer diameter of the locking piece 332 is equal to the outer diameter of the spring piece 331.

[0052] It should be disclosed that the radius of the insertion hole 341 gradually decreases from an end close to the blocking piece 310 to an end far away from the blocking piece 310 .

[0053] That is to say, when the drawer body 100 is pushed to slide into the drawer chute, during the process that the elastic member 330 gradually slides into the insertion hole 341, since the two elastic pieces 331 are arranged in a hollow structure, the two elastic pieces 331 that originally had a distance between them approach each other under the contraction and fastening action of the insertion hole 341 with a gradually decreasing inner diameter during the sliding process until the locking piece 332 slides out from the other end of the insertion hole 341. At this time, the feeling of the locking piece 332 instantly popping out of the insertion hole 341 will be feedback to the user's hand, indicating that the drawer body 100 has been locked in the cabinet. In this way, when the cabinet is moved, the drawer body 100 will not automatically slide out of the drawer chute without external force applied.

[0054] When it is necessary to pull out the drawer body 100 from the cabinet, pull the drawer body 100 to make the locking piece 332 (at this time, the elastic pieces 331 are completely inside the insertion hole 341) that was originally located outside the periphery of the insertion hole 341 retract into the insertion hole 341. Then, the drawer body 100 can be pulled out from the cabinet more smoothly.

[0055] To sum up, the working principle of the present invention is as follows:

[0056] When the drawer body 100 is pushed to slide into the drawer chute, as the drawer body 100 gradually enters the drawer chute, the outer rail 210 on the side plate of the drawer body 100 pushes the middle rail 230 to slide inside the drawer chute. Correspondingly, the middle rail 230 drives the upper moving seat 320 to approach the baffle 310 until the socket 340 contacts the elastic member 330. As the elastic member 330 is inserted into the insertion hole 341, the gasket 350 stays outside the insertion hole 341 and is blocked by the surface of the socket 340, and relative sliding occurs between the gasket 350 and the elastic member 330. That is to say, the spring 360 is compressed by the approaching gasket 350 and baffle 310 and its length is reduced. When the spring 360 is compressed, the deformation resistance generated by it plays a role in preventing the drawer body 100 from sliding too fast. During the process that the elastic member 330 gradually slides into the insertion hole 341, since the two elastic pieces 331 are arranged in a hollow structure, the two elastic pieces 331 that originally had a distance between them approach each other under the contraction and fastening action of the insertion hole 341 with a gradually decreasing inner diameter during the sliding process until the locking piece 332 slides out from the other end of the insertion hole 341. At this time, the feeling of the locking piece 332 instantly popping out of the insertion hole 341 will be feedback to the user's hand, indicating that the drawer body 100 has been locked in the cabinet. In this way, when the cabinet is moved, the drawer body 100 will not automatically slide out of the drawer chute without external force applied.

[0057] When it is necessary to pull out the drawer body 100 located in the drawer chute, the drawer body 100 is pulled, so that the locking piece 332 originally located outside the outer periphery of the jack 341 (at this time, the elastic piece 331 is completely located inside the jack 341) retracts into the jack 341. At this time, the restoring force of the spring 360 will push the gasket 350 to reset on the surface of the elastic member 330. Then, this restoring force plays a pushing role when pulling the drawer body 100, so as to reduce the pulling force that the user needs to apply when pulling the drawer body 100 out of the drawer chute.

[0058] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only the preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable tension type buffer damper for a furniture drawer slide rail, comprising a drawer body (100) slidably connected to a cabinet, a slide rail body (200) being fixedly connected between two sides of the drawer body (100) that are away from each other and the inner wall of the cabinet side plate, the slide rail body (200) at least comprising an outer rail (210) fixedly connected to the inner wall of the cabinet side plate, an inner rail (220) fixedly connected to the side wall of the drawer body (100), and a middle rail (230), the outer side of the middle rail (230) being slidably connected to the inner side of the outer rail (210), the outer side of the inner rail (220) being slidably connected to the inner side of the middle rail (230), a damper body (300) being arranged between the outer rail (210) and the middle rail (230), characterized in that: The slide rail body (200) is used to enable the drawer body (100) to slide back and forth in the cabinet; When the drawer body (100) slides toward the inside of the cabinet, the damper body (300) is used to increase the resistance of the drawer body (100) when sliding; When the drawer body (100) completely slides into the interior of the cabinet and no external force is applied to the drawer body (100), the damper body (300) is used to lock the position of the drawer body (100) in the cabinet; When the drawer body (100) slides outward from the cabinet under the action of an external force, the damper body (300) is used to reduce the force required to pull the drawer body (100).

2. The adjustable tension buffer damper for furniture drawer slide rail according to claim 1, characterized in that: The slide rail body (200) further comprises two groups of sliding members (240), wherein one group of sliding members (240) is slidably connected between the outer rail (210) and the middle rail (230), and the other group of sliding members (240) is slidably connected between the inner rail (220) and the middle rail (230).

3. The adjustable tension buffer damper for furniture drawer slide rail according to claim 2, characterized in that: The sliding member (240) comprises a sliding member (240), wherein a plurality of balls (242) are rotatably connected inside the sliding member (240), and the diameter of the balls (242) is greater than the thickness of the connecting seat (241).

4. The adjustable tension buffer damper for furniture drawer slide rail according to claim 2, characterized in that: The damper body (300) comprises a baffle (310) fixedly connected to the end of the inner rail (220), a movable seat (320) fixedly connected to one end of the middle rail (230) close to the baffle (310), and a plurality of elastic members (330) fixedly connected to one side of the baffle (310) close to the movable seat (320), each of the elastic members (330) being slidably connected to a gasket (350), and a spring (360) being sleeved on the periphery of the elastic member (330) between the baffle (310) and the gasket (350).

5. The adjustable tension buffer damper for furniture drawer slide rail according to claim 4, characterized in that: One end of the movable seat (320) close to the blocking piece (310) is fixedly connected to a plurality of sockets (340), and each of the sockets (340) is provided with a plug hole (341).

6. The adjustable tension buffer damper for furniture drawer slide rail according to claim 4, characterized in that: The elastic member (330) comprises a pair of spring sheets (331) symmetrically arranged in an upper and lower direction, a spacing being provided between the two spring sheets (331), one end of each spring sheet (331) away from the blocking sheet (310) being fixedly connected to a locking sheet (332), the inner diameter of the locking sheet (332) being equal to the inner diameter of the spring sheet (331), and the outer diameter of the locking sheet (332) being equal to the outer diameter of the spring sheet (331).

7. The adjustable tension buffer damper for furniture drawer slide rail according to claim 1, characterized in that: The radius of the insertion hole (341) gradually decreases from an end close to the baffle (310) to an end far from the baffle (310).

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