Single-spring buffering sliding rail

Abstract

The utility model relates to the field of sliding rails, in particular to a single-spring buffering sliding rail which comprises an outer rail, a middle rail and an inner rail, the middle rail is arranged between the outer rail and the inner rail, a steering nail is installed at one end of the outer rail, a fixing sleeve is arranged on one side of the steering nail, a limiting sleeve is arranged on the other side of the steering nail, a buffer is installed in the fixing sleeve, and the limiting sleeve is arranged in the buffer. Positioning holes are formed in the two side walls of the limiting sleeve, a first spring is inserted into the limiting sleeve, and a limiting barrel is installed at the end, located in the limiting sleeve, of the first spring. When elastic potential energy is reduced due to long-time use of a first spring, an inner rail and a drawer are detached, a second shifting rod is pressed to be close to a first shifting rod, and when the second shifting rod makes contact with the first shifting rod, a connecting rod connected with the end, provided with a connecting piece, of a limiting rod drives two corresponding sliding blocks to contract relatively, so that the sliding blocks are separated from the first shifting rod. And then the limiting barrel is moved to compress the first spring, so that the elastic potential energy of the first spring is improved, and the first spring can be continuously used.

Description

Technical Field

[0001] This utility model relates to the field of slide rails, specifically to a single-spring buffer slide rail. Background Technology

[0002] With societal progress, a wide variety of devices that facilitate people's lives have emerged. Slide rail dampers are devices that buffer pressure. For example, when a drawer is pushed in and closed, the latch at the front end of the inner rail of the three-section ball bearing slide rail triggers the locking switch on the damper. The compressed spring releases its tensile deformation energy, causing the slide rail to enter the damper. The damper then begins to operate, creating resistance at the moment the drawer closes, thus preventing the slide rail from impacting and causing noise, while also preventing vibrations caused by the drawer closing under tremendous external force.

[0003] However, traditional single-spring slide rails rely on the stiffness of a single spring for cushioning, and the spring is prone to plastic deformation after long-term high-frequency use, resulting in a decrease in elastic potential energy and a reduction in cushioning force. This necessitates frequent replacement and leads to high operating costs. Therefore, those skilled in the art have provided single-spring cushioning slide rails to solve the problems mentioned in the background section. Utility Model Content

[0004] The purpose of this invention is to address the above-mentioned defects and provide a mechanism for adjusting the compression spring. This solves the problem in the prior art that springs are prone to plastic deformation and reduced elastic potential energy after long-term high-frequency use, resulting in weakened buffering force, frequent replacement, and high operating costs.

[0005] The objective of this utility model is achieved through the following means:

[0006] A single-spring buffer slide rail includes an outer rail, a middle rail, and an inner rail. The middle rail is positioned between the outer and inner rails. A steering pin is installed at one end of the outer rail. A fixed sleeve is provided on one side of the steering pin, and a limiting sleeve is provided on the other side of the steering pin. A buffer is installed inside the fixed sleeve. Positioning holes are provided on both sides of the limiting sleeve. A first spring is inserted into the limiting sleeve. A limiting cylinder is installed at the end of the first spring inside the limiting sleeve. A movable groove is provided on the upper side of the limiting cylinder. A first lever is installed on one side of the movable groove. Through grooves are provided on the left and right sides of the limiting cylinder. A slot is provided laterally on the inner wall of the end of the limiting cylinder away from the first lever. A pressing rod is slidably inserted into the limiting cylinder. A second lever is installed at the upper end of the pressing rod. A second spring is inserted into the end of the pressing rod facing the first spring. A connecting piece is installed at the end of the pressing rod away from the second spring. A connecting piece is rotatably sleeved with a connecting rod. A slider is rotatably connected to the end of the connecting rod away from the connecting piece. A locking block is installed on one side of the slider.

[0007] Furthermore, the inner rail has a locking groove at one end facing the steering pin, which engages with the steering pin. When the slide rail is in a retracted state, the locking groove at the end of the inner rail engages with the steering pin at the inner end of the outer rail, thereby achieving the effect of retraction and limiting.

[0008] Furthermore, a buffer pad is installed at the output end of the buffer, and the buffer pad is in contact with the end of the first spring away from the pressure rod. The second lever passes through and protrudes from the movable groove. One end of the second spring presses against the pressure rod, and the other end of the second spring presses against the inner wall of the limiting cylinder.

[0009] Furthermore, the connecting rod and the slider hinge protrudes from the through groove, and the slider slides into the groove via a locking block. When the elastic potential energy of the first spring decreases due to prolonged use, the drawer connected to the inner rail can be removed. Then, the second lever is pressed to move the second lever toward the first lever. When the second lever contacts the first lever, the connecting rod with the connecting piece at one end of the limiting rod drives the corresponding two sliders to retract relative to each other, thereby causing the part of the slider that protrudes from the through groove and locks into the positioning hole to be retracted into the limiting cylinder. Then, the limiting cylinder is moved to compress and position the first spring, thereby increasing the elastic potential energy of the first spring and allowing it to continue to be used.

[0010] The beneficial effects of this utility model are:

[0011] This embodiment of the single-spring buffer slide rail consists of an outer rail, a middle rail, and an inner rail. A fixing sleeve and a limiting sleeve are installed at the tail end of the outer rail. A buffer is installed inside the fixing sleeve, and a first spring is installed inside the limiting sleeve. One end of the first spring is provided with a limiting cylinder. When the elastic potential energy of the first spring decreases due to prolonged use, the inner rail and drawer are removed, and the second lever is pressed to move the second lever toward the first lever. When the second lever contacts the first lever, the connecting rod with the connecting piece at one end of the limiting rod drives the two corresponding sliders to retract relative to each other, causing the sliders to retract into the limiting cylinder. Then, the limiting cylinder moves to compress the first spring, increasing the elastic potential energy of the first spring so that it can continue to be used. After adjusting the position, the second lever is released, and the second lever rebounds under the compression of the second spring, thereby squeezing the connecting rod and causing the slider to protrude out of the through groove and insert into the positioning hole to ensure the stable use of the first spring. In this device, the first spring does not need to be replaced frequently, reducing the cost of use. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the single-spring buffer slide rail of this utility model;

[0013] Figure 2 This is a schematic diagram of the buffer pad structure of the single-spring buffer slide rail of this utility model;

[0014] Figure 3This is a schematic diagram of the buffer structure of the single-spring buffer slide rail of this utility model;

[0015] Figure 4 This is a schematic diagram of the limiting sleeve structure of the single-spring buffer slide rail of this utility model;

[0016] Figure 5 This is a cross-sectional view of the limiting cylinder structure of the single-spring buffer slide rail of this utility model;

[0017] Figure 6 This is a schematic diagram of the connecting rod structure of the single-spring buffer slide rail of this utility model;

[0018] Figure 7 This is a schematic diagram of the connecting component structure of the single-spring buffer slide rail of this utility model.

[0019] In the diagram, 1 is the outer rail; 101 is the steering pin; 2 is the middle rail; 3 is the inner rail; 301 is the buckle groove; 4 is the fixing sleeve; 5 is the buffer; 6 is the buffer pad; 7 is the limit sleeve; 701 is the positioning hole; 8 is the first spring; 9 is the limit cylinder; 901 is the movable groove; 902 is the first lever; 903 is the through groove; 904 is the slot; 10 is the pressing rod; 1001 is the second lever; 11 is the second spring; 12 is the connecting piece; 13 is the connecting rod; 14 is the slider; and 15 is the locking block. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0021] In this embodiment, refer to Figure 1 - Figure 7 The system includes an outer rail 1, a middle rail 2, and an inner rail 3. The middle rail 2 is positioned between the outer rail 1 and the inner rail 3. A steering pin 101 is installed at one end of the outer rail 1. A fixing sleeve 4 is provided on one side of the steering pin 101, and a limit sleeve 7 is provided on the other side of the steering pin 101. A buffer 5 is installed inside the fixing sleeve 4. Positioning holes 701 are provided on both sides of the limit sleeve 7. A first spring 8 is inserted into the limit sleeve 7. A limit cylinder 9 is installed at one end of the first spring 8 inside the limit sleeve 7. A movable groove 901 is provided on the upper side of the limit cylinder 9. A first lever 902 is installed on one side of the movable groove 901. Through grooves 903 are provided on the left and right side walls of the cylinder 9. A slot 904 is provided horizontally on the inner wall of the end of the limiting cylinder 9 away from the first lever 902. A pressing rod 10 is slidably inserted into the limiting cylinder 9. A second lever 1001 is installed on the upper end of the pressing rod 10. A second spring 11 is inserted into the end of the pressing rod 10 facing the first spring 8. A connector 12 is installed on the end of the pressing rod 10 away from the second spring 11. A connecting rod 13 is rotatably sleeved on the bottom of the connecting rod 12. A slider 14 is rotatably connected to the end of the connecting rod 13 away from the connecting rod 12. A locking block 15 is installed on one side of the slider 14.

[0022] The inner rail 3 has a locking groove 301 at one end facing the steering pin 101. The locking groove 301 engages with the steering pin 101. When the slide rail is in the retracted state, the locking groove 301 at the tail end of the inner rail 3 engages with the steering pin 101 at the inner end of the outer rail 1, thereby achieving the effect of retraction limit. A buffer pad 6 is installed at the output end of the buffer 5. The buffer pad 6 is in contact with the end of the first spring 8 away from the pressure rod 10. The second lever 1001 passes through and protrudes from the movable groove 901. One end of the second spring 11 presses against the pressure rod 10, and the other end of the second spring 11 presses against the inner wall of the limiting cylinder 9. The hinge part of the connecting rod 13 and the slider 14 protrudes from the through groove 903. The slider 14 is connected by a locking mechanism. Block 15 slides into slot 904. When the elastic potential energy of the first spring 8 decreases due to prolonged use, the drawer connected to the inner rail 3 can be removed. Then, press the second lever 1001 to move it toward the first lever 902. When the second lever 1001 contacts the first lever 902, the connecting rod 13 with the connecting piece 12 on the limiting rod will cause the two corresponding sliders 14 to retract relative to each other. This causes the part of the slider 14 that protrudes from the through slot 903 and engages with the positioning hole 701 to be retracted into the limiting cylinder 9. Then, the limiting cylinder 9 is moved to compress and position the first spring 8, thereby increasing the elastic potential energy of the first spring 8 and allowing it to continue to be used.

[0023] The single-spring buffer slide rail in this embodiment consists of an outer rail 1, a middle rail 2 and an inner rail 3. A steering pin 101 is installed on the tail end of the outer rail 1, and a buckle groove 301 is opened at the tail end of the inner rail 3. When the slide rail is in the retracted state, the buckle groove 301 at the tail end of the inner rail 3 engages with the steering pin 101 at the inner end of the outer rail 1, thereby achieving the effect of retraction limit.

[0024] A fixing sleeve 4 and a limiting sleeve 7 are respectively installed on both sides of the steering nail 101 at the tail end of the outer rail 1. A buffer 5 is installed inside the fixing sleeve 4, and a buffer pad 6 is installed at the output end of the buffer 5. Positioning holes 701 are opened on both sides of the limiting sleeve 7. A first spring 8 is installed inside the limiting sleeve 7. One end of the first spring 8 contacts the buffer pad 6, and a limiting cylinder 9 is installed at the end of the first spring 8 away from the buffer pad 6.

[0025] A movable groove 901 is provided on the upper side of the limiting cylinder 9. A first lever 902 is installed on one side of the movable groove 901. Through grooves 903 are provided on both sides of the limiting cylinder 9. A pressing rod 10 is provided inside the limiting cylinder 9. A second lever 1001 is installed on the upper end of the pressing rod 10. The second lever 1001 passes through and protrudes from the movable groove 901. A groove is provided on the side of the pressing rod 10 facing the buffer pad 6. A second spring 11 is provided in the groove. One end of the second spring 11 is in abutting contact with the inner wall of the limiting cylinder 9. A connector 12 is installed on the end of the pressing rod 10 away from the spring. Two connecting rods 13 are rotatably sleeved on the upper side of the connector 12. A slider 14 is rotatably connected to the other end of the connecting rod 13. A locking block 15 is installed on the slider 14. A locking groove 904 is provided laterally on the inner wall of the limiting cylinder 9 near the slider 14. The slider 14 is slidably locked with the locking groove 904 through the locking block 15.

[0026] When the elastic potential energy of the first spring 8 decreases due to prolonged use, the drawer connected to the inner rail 3 can be removed. Then, press the second lever 1001 to bring it closer to the first lever 902. When the second lever 1001 contacts the first lever 902, the connecting rod 13 connected to one end of the limiting rod with the connecting piece 12 will cause the two corresponding sliders 14 to retract relative to each other. This will cause the part of the slider 14 that protrudes from the through groove 903 and engages with the positioning hole 701 to be retracted into the limiting cylinder 9. At this time, the limiting cylinder 9 can be moved to compress the first spring 8, thereby increasing the elastic potential energy of the first spring 8 and allowing it to continue to be used. After the first spring 8 is compressed to a certain extent, release the second lever 1001. The second lever 1001 will rebound under the pressure of the second spring 11, thereby pressing the connecting rod 13 again. This will cause the slider 14 connected to the other end of the connecting rod 13 to protrude from the through groove 903 and engage with the positioning hole 701 for positioning, thereby positioning the adjusted first spring and ensuring the stable use of the first spring 8.

[0027] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A single-spring buffer slide rail, comprising an outer rail, a middle rail, and an inner rail, wherein the middle rail is disposed between the outer rail and the inner rail, characterized in that: A steering pin is installed at one end of the outer rail. A fixed sleeve is provided on one side of the steering pin, and a limit sleeve is provided on the other side of the steering pin. A buffer is installed inside the fixed sleeve. Positioning holes are opened on both sides of the limit sleeve. A first spring is inserted into the limit sleeve. A limit cylinder is installed at the end of the first spring inside the limit sleeve. A movable groove is opened on the upper side of the limit cylinder. A first lever is installed on one side of the movable groove. Through grooves are opened on the left and right sides of the limit cylinder. A slot is opened laterally on the inner wall of the end of the limit cylinder away from the first lever. A pressing rod is slidably inserted into the limit cylinder. A second lever is installed at the upper end of the pressing rod. A second spring is inserted into the end of the pressing rod facing the first spring. A connector is installed at the end of the pressing rod away from the second spring. A connecting rod is rotatably sleeved on the bottom of the connector. A slider is rotatably connected to the end of the connecting rod away from the connector. A locking block is installed on one side of the slider.

2. The single-spring buffer slide rail according to claim 1, characterized in that: The inner rail has a locking groove at one end facing the steering pin, and the locking groove engages with the steering pin.

3. The single-spring buffer slide rail according to claim 1, characterized in that: The output end of the buffer is equipped with a buffer pad, which is in contact with the end of the first spring away from the pressure rod.

4. The single-spring buffer slide rail according to claim 1, characterized in that: The second lever passes through and protrudes from the movable groove, one end of the second spring presses against the pressing rod, and the other end of the second spring presses against the inner wall of the limiting cylinder.

5. The single-spring buffer slide rail according to claim 1, characterized in that: The hinge joint between the connecting rod and the slider protrudes from the through groove.

6. The single-spring buffer slide rail according to claim 1, characterized in that: The slider is engaged with the slot via a locking block.

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