A riding drawer slide rail assembly

Abstract

The present invention discloses a riding drawer slide rail assembly, which aims to solve the problem that the drawer slide rail cannot be automatically retracted after the drawer is pulled out, which is inconvenient to use. The main points of the technical solution are: it includes an outer slide rail and an inner slide rail slidably connected to the outer slide rail, a sliding rail for the inner slide rail to slide is arranged inside the outer slide rail, a through hole for the outer slide rail to extend is arranged on one side of the sliding rail, a rotating rod rotatably connected to the sliding rail is arranged on the side of the sliding rail away from the through hole, a torsion spring is sleeved on one end of the rotating rod, a fixed block is fixedly connected to the inner wall of the sliding rail, the two ends of the torsion spring are respectively fixedly connected to the fixed block and the rotating rod, and a pull rope is arranged on the rotating rod with one end fixedly connected to the rotating rod. The present invention generates a linkage relationship between the inner slide rail and the torsion spring by arranging the rotating rod and the pull rope, so that the inner slide rail can be automatically retracted by the resilience of the torsion spring after the sliding rail is pulled out, and buffering is performed by a recovery buffer device, so that the use of the drawer slide rail is more convenient.

Description

Technical Field

[0001] The invention relates to the field of drawer slide rails, and more particularly to a saddle drawer slide rail assembly. Background Art

[0002] In the existing drawer slide rail structure, most of the drawer slide rails do not have an automatic recovery function, resulting in the user having to apply a push force throughout the entire process to completely close the drawer; when the user applies too much force, it is easy to cause the drawer to collide with part of the cabinet or even the drawer to rebound. If this operation is carried out for a long time, the cabinet is very likely to be damaged; and when the force is applied too little, the drawer cannot be completely closed, especially for the drawers in the refrigerator, which can easily cause the stored items in the box to come into contact with the surrounding air and fail to meet the storage requirements.

[0003] Therefore, a solution needs to be proposed to solve this problem. Summary of the invention

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a saddle drawer slide rail assembly, which provides a rotating rod and a pull rope to create a linkage relationship between the inner slide rail and the torsion spring, so that after the inner slide rail is pulled out of the sliding rail, it can be automatically retracted by the resilience of the torsion spring, and buffered by a recovery buffer device, making the drawer slide rail more convenient to use.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: a riding drawer slide rail assembly, comprising an outer slide rail and an inner slide rail slidably connected to the outer slide rail, a sliding rail for the inner slide rail to slide is arranged inside the outer slide rail, a through hole for the outer slide rail to extend is arranged on one side of the sliding rail, a rotating rod rotatably connected to the sliding rail is arranged on the side of the sliding rail away from the through hole, a torsion spring is sleeved on one end of the rotating rod, a fixed block is fixedly connected to the inner wall of the sliding rail, two ends of the torsion spring are respectively fixedly connected to the fixed block and the rotating rod, and the rotating rod is A pull rope with one end fixedly connected thereto is provided, and the other end of the pull rope is fixedly connected to the inner sliding rail. A recovery buffer device is provided on the inner wall of the sliding rail, and the recovery buffer device includes a groove provided on the inner wall of the sliding rail and a buffer plate rotatably connected to the inner wall of the groove through a rotating shaft, the surface of the buffer plate and the inner wall of the sliding rail are located on the same plane, a counterweight block is fixedly connected to one end of the buffer plate close to the through hole, an elastic member is provided between one end of the buffer plate close to the rotating rod and the inner wall of the groove, and the rotating shaft is provided at one end of the buffer plate close to the through hole.

[0006] By adopting the above technical solution, when the drawer is in a closed state, the inner slide rail will be located in the sliding track of the outer slide rail. At this time, the torsion spring is in an initial state, and the pull rope will be wrapped around the rotating rod. When the drawer is pulled out, the inner slide rail will extend from the through hole along the sliding track, and the pull rope will extend from the rotating rod along with the inner slide rail. The rotating rod will rotate under the drive of the pull rope, and the torsion spring will be deformed under the drive of the rotating rod. When the items in the drawer are taken out and the drawer is released, the resilience of the torsion spring will drive the rotating rod to rotate in the opposite direction, and the rotating rod can drive the pull rope to rewind around the rotating rod. When the drawer is on the rod, the pull rope will pull the inner slide rail to the side close to the rotating rod, and the inner slide rail will drive the drawer to retract. During the retraction process, the retraction buffer device can be used for buffering to avoid collision damage to the rotating rod and other structures caused by too fast retraction. In this way, the automatic retraction of the drawer can be realized, making the use of the drawer more convenient. The length of the rotating rod can be set according to different models of drawer slide rails, which can be suitable for more different models of slide rails. When the inner slide rail is located in the sliding track, the buffer plate is in a horizontal state. At this time, the surface of the buffer plate and the inner wall of the sliding track are located at the same On the plane, the buffer plate and the inner wall of the sliding track are both in contact with the surface of the inner sliding track. When the inner sliding track moves outward and when the end of the inner sliding track close to the rotating rod moves to between the rotating shaft and the through hole, since a counterweight block is fixed to the end of the buffer plate close to the through hole, after the buffer plate is no longer blocked by the inner sliding track, the end of the buffer plate with the counterweight block will be pressed down, and the end of the buffer plate close to the rotating rod will be tilted upward and inserted into the sliding track. In this way, during the recovery process of the inner sliding track, it will first come into contact with the tilted end of the buffer plate and then slow down, and then continue to move forward through the rebound force of the torsion spring. Move the end close to the rotating rod until the buffer plate is squeezed back to a horizontal state, thereby preventing the torsion spring from colliding with the rotating rod and other structures due to the fast speed of elastic recovery, thereby extending the service life of the drawer slide rail. When the buffer plate is in a horizontal state, the elastic member is in a contracted state. When the inner slide rail moves outward, the elastic member can lift the end of the buffer plate close to the rotating rod, so that the buffer plate can be lifted more stably. After the rotating fulcrum of the buffer plate is close to the side of the through hole, the length of the buffer plate can be longer, and the inner slide rail can buffer earlier during buffering.

[0007] The present invention is further configured as follows: an elastic pad is fixedly connected to one side of the buffer plate close to the inner slide rail, and a plurality of hemispherical convex ridges distributed in an array are fixedly connected to the surface of the elastic pad.

[0008] By adopting the above technical solution, the elastic pad is weather-resistant and reduces the damage caused by the collision between the inner slide rail and the buffer plate. The hemispherical ridges can increase the friction between the buffer plate and the inner slide rail, further enhancing the buffering effect.

[0009] The present invention is further configured as follows: the drawstring outer shell is provided with an elastic protective sleeve.

[0010] By adopting the above technical solution, the material of the elastic protective sleeve is highly elastic rubber. Under the premise of not affecting the normal bending and winding of the pull rope, the elastic protective sleeve can protect the pull rope and extend the service life of the pull rope.

[0011] The present invention is further configured as follows: a receiving groove is provided at one end of the buffer plate close to the elastic member, a mounting block rotatably connected thereto is provided in the receiving groove, and one end of the elastic member close to the buffer plate is fixedly connected to the mounting block.

[0012] By adopting the above technical solution, the angle of the buffer plate will change during its rotation, while the mounting block connected to its rotation can always remain in a horizontal state, reducing the distortion of the elastic member during the extension and retraction process, making the extension and retraction of the elastic member more stable.

[0013] In summary, the present invention has the following beneficial effects:

[0014] The present invention provides a rotating rod and a pull rope to create a linkage relationship between the inner slide rail and the torsion spring, so that after the inner slide rail is pulled out of the sliding track, it can be automatically retracted by the resilience of the torsion spring, and buffered by the recovery buffer device, making the use of the drawer slide rail more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The structure of the present invention is schematically shown Figure 1 , showing the structural features of the inner and outer slide rails when the drawer is in a closed state;

[0016] Figure 2 The structure of the present invention is schematically shown Figure 2 , showing the structural features of the inner and outer slide rails when the drawer is in the open state;

[0017] Figure 3 for Figure 2 The enlarged schematic diagram of part A shows the connection relationship between the elastic member and the mounting block.

[0018] In the figure: 1. outer slide rail; 2. inner slide rail; 3. sliding track; 4. rotating rod; 5. pull rope; 6. torsion spring; 7. groove; 8. buffer plate; 9. rotating shaft; 10. counterweight block; 11. elastic member; 12. elastic pad; 13. receiving groove; 14. mounting block. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0020] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", "top / bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] The present invention is described in detail below in conjunction with the accompanying drawings.

[0023] A riding drawer slide rail assembly, such as Figure 1-Figure 3 As shown, it includes an outer slide rail 1 and an inner slide rail 2 slidably connected to the outer slide rail 1, a sliding rail 3 for the inner slide rail 2 to slide is provided in the outer slide rail 1, a through hole is provided on one side of the sliding rail 3 for the outer slide rail 1 to extend out, a rotating rod 4 rotatably connected to the sliding rail 3 is provided on the side of the sliding rail 3 away from the through hole, a torsion spring 6 is sleeved on one end of the rotating rod 4, a fixed block is fixedly connected to the inner wall of the sliding rail 3, two ends of the torsion spring 6 are respectively fixedly connected to the fixed block and the rotating rod 4, a pull rope 5 with one end fixedly connected to the rotating rod 4 is provided, an elastic protective sleeve is provided on the outer sleeve of the pull rope 5, the other end of the pull rope 5 is fixedly connected to the inner slide rail 2, and a recovery buffer device is provided on the inner wall of the sliding rail 3.

[0024] The recovery buffer device includes a groove 7 arranged on the inner wall of the sliding track 3 and a buffer plate 8 rotatably connected to the inner wall of the groove 7 through a rotating shaft 9. The buffer plate 8 is staggered with the pull rope 5. The rotating shaft 9 is arranged at one end of the buffer plate 8 close to the through hole. The surface of the buffer plate 8 and the inner wall of the sliding track 3 are located on the same plane. A counterweight block 10 is fixedly connected to one end of the buffer plate 8 close to the through hole.

[0025] An elastic member 11 is provided between one end of the buffer plate 8 close to the rotating rod 4 and the inner wall of the groove 7. The elastic member 11 is a spring. An accommodating groove 13 is provided at one end of the buffer plate 8 close to the elastic member 11. A mounting block 14 rotatably connected to the accommodating groove 13 is provided in the accommodating groove 13. One end of the elastic member 11 close to the buffer plate 8 is fixedly connected to the mounting block 14, and the other end of the elastic member 11 is fixedly connected to the inner wall of the groove 7.

[0026] An elastic pad 12 is fixedly connected to one side of the buffer plate 8 close to the inner slide rail 2 , and a plurality of hemispherical convex ridges distributed in an array are fixedly connected to the surface of the elastic pad 12 .

[0027] When the drawer is in a closed state, the inner slide rail 2 will be located in the sliding track 3 of the outer slide rail 1. At this time, the torsion spring 6 is in the initial state, and the pull rope 5 will be wrapped around the rotating rod 4. When the drawer is pulled out, the inner slide rail 2 will extend from the through hole along the sliding track 3, and the pull rope 5 will extend from the rotating rod 4 along with the inner slide rail 2. The rotating rod 4 will rotate under the drive of the pull rope 5, and the torsion spring 6 will be deformed under the drive of the rotating rod 4. When the items in the drawer are taken out and the drawer is released, the resilience of the torsion spring 6 will drive the rotating rod 4 to the opposite direction. When the drawer is retracted, the drawer 2 can be retracted by the pull rope 5, and the pull rope 5 can be pulled to the side close to the rotating rod 4. The inner slide rail 2 can drive the drawer to retract, and the recovery buffer device can be used for buffering during the recovery process to avoid collision damage to the rotating rod 4 and other structures caused by excessive recovery. In this way, the automatic recovery of the drawer can be achieved, making the use of the drawer more convenient. The length of the rotating rod 4 can be set according to different types of drawer slides, and can be suitable for use with more different types of slides.

[0028] When the inner slide rail 2 is located in the sliding rail 3, the buffer plate 8 is in a horizontal state. At this time, the surface of the buffer plate 8 and the inner wall of the sliding rail 3 are located on the same plane, and the buffer plate 8 and the inner wall of the sliding rail 3 are both in contact with the surface of the inner slide rail 2. When the inner slide rail 2 moves outward, when the end of the inner slide rail 2 close to the rotating rod 4 moves to between the rotating shaft 9 and the through hole, since the end of the buffer plate 8 close to the through hole is fixed with a counterweight block 10, after the buffer plate 8 is no longer blocked by the inner slide rail 2, the end of the buffer plate 8 with the counterweight block 10 will be pressed down, and the end of the buffer plate 8 close to the rotating rod 4 will be tilted upward and inserted into the sliding rail 3. In this way, during the recovery process of the inner slide rail 2, it will first come into contact with the tilted end of the buffer plate 8 and then slow down, and then continue to move toward the end close to the rotating rod 4 through the resilience of the torsion spring 6 until the buffer plate 8 is squeezed back to a horizontal state. In this way, it can be avoided that the torsion spring 6 can be elastically restored at too fast a speed, resulting in collision between the inner slide rail 2 and the rotating rod 4 and other structures, thereby extending the service life of the drawer slide.

[0029] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A saddle drawer slide rail assembly, comprising an outer slide rail (1) and an inner slide rail (2) slidably connected to the outer slide rail (1), wherein a sliding rail (3) for the inner slide rail (2) to slide is provided in the outer slide rail (1), and a through hole for the outer slide rail (1) to extend is provided on one side of the sliding rail (3), characterized in that: A rotating rod (4) rotatably connected to the sliding track (3) is provided on one side away from the through hole, and a torsion spring (6) is sleeved on one end of the rotating rod (4). A fixed block is fixedly connected to the inner wall of the sliding track (3), and the two ends of the torsion spring (6) are fixedly connected to the fixed block and the rotating rod (4) respectively. A pull rope (5) is provided on the rotating rod (4) with one end fixedly connected to the pull rope, and the other end of the pull rope (5) is fixedly connected to the inner sliding rail (2). A recovery buffer device is provided on the inner wall of the sliding track (3). The receiving and buffering device comprises a groove (7) provided on the inner wall of the sliding track (3) and a buffer plate (8) rotatably connected to the inner wall of the groove (7) via a rotating shaft (9), wherein the surface of the buffer plate (8) and the inner wall of the sliding track (3) are located on the same plane, a counterweight (10) is fixedly connected to one end of the buffer plate (8) close to the through hole, an elastic member (11) is provided between one end of the buffer plate (8) close to the rotating rod (4) and the inner wall of the groove (7), and the rotating shaft (9) is provided at one end of the buffer plate (8) close to the through hole.

2. The saddle drawer slide rail assembly according to claim 1, characterized in that: An elastic pad (12) is fixedly connected to one side of the buffer plate (8) close to the inner slide rail (2), and a plurality of hemispherical ridges distributed in an array are fixedly connected to the surface of the elastic pad (12).

3. The saddle drawer slide rail assembly according to claim 1, characterized in that: The outer cover of the drawstring (5) is provided with an elastic protective cover.

4. The saddle drawer slide rail assembly according to claim 1, characterized in that: An end of the buffer plate (8) close to the elastic member (11) is provided with a receiving groove (13), a mounting block (14) rotatably connected thereto is provided in the receiving groove (13), and an end of the elastic member (11) close to the buffer plate (8) is fixedly connected to the mounting block (14).

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