An adjustable gas spring

Abstract

This utility model relates to the field of gas spring technology and discloses an adjustable gas spring, including a cylinder body. A piston rod is provided inside the cylinder body, and an adjustment groove is formed at the top of the piston rod. An adjustment rod is slidably connected inside the adjustment groove, and a groove is formed inside the adjustment rod. A limiting component is provided inside the adjustment rod. By pressing the button, the control rod can be moved, which in turn moves the moving plate. The moving plate causes the locking block to disengage from the groove, thus freeing the adjustment rod from restriction. The adjustment rod can then be pulled to adjust the overall length of the device. After adjusting the device to the desired length, releasing the button causes the moving plate to reset via a spring inside the groove, causing the locking block to re-engage with the groove, thereby limiting the adjustment rod and improving the user experience of the device.

Description

Technical Field

[0001] This utility model relates to the field of gas springs, specifically an adjustable gas spring. Background Technology

[0002] A gas spring is an industrial component that utilizes high-pressure gas within a sealed cylinder to achieve elasticity. It provides support, cushioning, and height adjustment through the principle of gas compression and expansion. A pressure difference is generated by the cross-sectional area difference between the piston rod and the piston. When an external force is applied, the gas compresses and stores energy; when the external force disappears, the gas expands and releases energy, driving the piston rod. The gas spring achieves precise mechanical control through the gas pressure difference, making it irreplaceable in scenarios requiring stable support, flexible cushioning, or intelligent positioning. However, the length of the gas spring's pressure cylinder and piston rod are fixed, which means that the length and elastic force of the gas spring cannot be adjusted, reducing its application range and practical scenarios.

[0003] To address the aforementioned issues, Chinese Patent Publication No. CN220227622U discloses an adjustable gas spring. Because the adjusting rod is threadedly connected to a threaded connection, and the upper end of the adjusting seat is movably connected to the adjusting rod, rotating the adjusting rod causes the adjusting seat to move up and down along the piston rod, thus increasing the length of the piston rod. Since the second threaded hole is threadedly connected to the threaded rod, rotating the threaded rod causes the adjusting block to move up and down, reducing or increasing the internal space of the cylinder to change the internal pressure, thereby adjusting the force of the gas spring. Through these steps, the length of the gas spring piston rod and the force of the gas spring can be adjusted, thereby increasing the adaptability of the gas spring and expanding its application range and usage scenarios.

[0004] While the comparative patent solved the problem of the inability to adjust the length and elasticity of the gas spring, thus reducing its application range and practical scenarios, the device mainly adjusts the length through the principle of threads. Since threads can get stuck after prolonged use, this reduces the user experience of the device.

[0005] Regarding the aforementioned technologies, this device mainly adjusts its length based on the principle of threads. However, the threads may become stuck after prolonged use, which reduces the user experience of the device. Utility Model Content

[0006] Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides an adjustable gas spring that has the advantages of limiting the adjustment rod, thereby improving the user experience of the device. It solves the problem that adjusting the length mainly through the principle of threads can lead to jamming after prolonged use, which reduces the user experience of the device.

[0007] (II) Technical Solution To achieve the aforementioned goal of limiting the adjustment rod and thus improving the user experience of the device, this utility model provides the following technical solution: an adjustable gas spring, including a cylinder body, a piston rod inside the cylinder body, an adjustment groove at the top of the piston rod, an adjustment rod slidably connected inside the adjustment groove, a groove inside the adjustment rod, and a limiting component inside the adjustment rod.

[0008] The limiting component includes a movable plate that is slidably connected inside the groove. A locking block is fixedly connected to one side of the movable plate. A locking groove is opened on the inner wall of the piston rod. The locking groove is movably engaged with the locking block. A control component is provided on one side of the locking block, and a reset component is provided on one side of the movable plate.

[0009] As a preferred embodiment of this utility model, the inner wall of the groove is provided with a through groove, and the locking block is slidably sleeved with the through groove.

[0010] As a preferred embodiment of this utility model, a first mounting ring is fixedly connected to the bottom of the cylinder body, and a second mounting ring is fixedly connected to the top of the adjusting rod.

[0011] As a preferred embodiment of this utility model, the control component includes a control rod, which is slidably sleeved with an adjusting rod, and a push block is fixedly connected to one end of the control rod.

[0012] As a preferred embodiment of this utility model, the reset component includes a connecting column, a groove is provided on one side of the connecting column, a spring is fixedly connected to the inner wall of the groove, a sliding rod is fixedly connected to one end of the spring, and the outer wall of the sliding rod is slidably connected to the inner wall of the groove.

[0013] As a preferred embodiment of this utility model, one end of the connecting column is fixedly connected to one side of the movable plate.

[0014] (III) Beneficial Effects Compared with the prior art, the present invention provides an adjustable gas spring, which has the following advantages: 1. By pressing the button, the control lever can be moved, which in turn moves the moving plate. The moving plate will cause the locking block to disengage from the slot, thus freeing the adjustment rod from restriction. The adjustment rod can then be pulled to adjust the overall length of the device. After adjusting the device to the desired length, the button is released, and the moving plate will be reset by the spring inside the slide groove, causing the locking block to re-engage with the slot, thereby limiting the adjustment rod and improving the user experience of the device.

[0015] 2. When the connecting column and the sliding rod are subjected to force, the sliding rod will move into the sliding groove. There are two limiting components. One end of the sliding rod is fixedly connected to one side of the moving plate in the other limiting component. After the moving plate is pressed and moved, it will be reset by the elastic force of the spring when no force is applied, thus further meeting the usage requirements of the device and making it worthy of promotion. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of an adjustable gas spring. Figure 2 This is a front sectional view of an adjustable gas spring. Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle; Figure 4 This is a cross-sectional view of the connecting column in this application.

[0017] In the diagram: 1. Cylinder body; 2. First mounting ring; 3. Piston rod; 4. Adjustment groove; 5. Adjustment rod; 6. Second mounting ring; 7. Moving plate; 8. Control rod; 9. Press block; 10. Connecting column; 11. Slide groove; 12. Spring; 13. Slide rod; 14. Groove; 15. Slot; 16. Locking block. Detailed Implementation

[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0019] Example 1 In the first embodiment of this utility model, an adjustable gas spring is provided, including a cylinder body 1. A piston rod 3 is provided inside the cylinder body 1. An adjustment groove 4 is provided on the top of the piston rod 3. An adjustment rod 5 is slidably connected inside the adjustment groove 4. A groove 14 is provided inside the adjustment rod 5. A limit component is provided inside the adjustment rod 5.

[0020] The limiting component includes a movable plate 7 that is slidably connected inside the groove 14. A locking block 16 is fixedly connected to one side of the movable plate 7. A locking groove 15 is opened on the inner wall of the piston rod 3. The locking groove 15 is movably engaged with the locking block 16. A control component is provided on one side of the locking block 16, and a reset component is provided on one side of the movable plate 7.

[0021] Specifically, the inner wall of the groove 14 is provided with a through groove, and the locking block 16 is slidably sleeved with the through groove, so that the moving plate 7 can drive the locking block 16 to move when it moves, and the locking block 16 can pass through the through groove.

[0022] Reference Figure 1-2The bottom of the cylinder body 1 is fixedly connected to a first mounting ring 2, and the top of the adjusting rod 5 is fixedly connected to a second mounting ring 6. The device can be installed in the desired position through the first mounting ring 2 and the second mounting ring 6.

[0023] Reference Figure 1-3 The control component includes a control lever 8, which is slidably connected to an adjusting lever 5. One end of the control lever 8 is fixedly connected to a button 9. The button 9 can drive the control lever 8 to move, which in turn drives the moving plate 7 to move.

[0024] Reference Figure 1-4 The reset component includes a connecting post 10, a groove 11 is provided on one side of the connecting post 10, a spring 12 is fixedly connected to the inner wall of the groove 11, a sliding rod 13 is fixedly connected to one end of the spring 12, the outer wall of the sliding rod 13 is slidably connected to the inner wall of the groove 11, and when the connecting post 10 and the sliding rod 13 are subjected to force, the sliding rod 13 will move into the groove 11.

[0025] Furthermore, one end of the connecting column 10 is fixedly connected to one side of the movable plate 7, and there are two limiting components. One end of the slide rod 13 is fixedly connected to one side of the movable plate 7 in another limiting component. Thus, after the movable plate 7 is pressed and moved, it will be reset by the elastic force of the spring 12 when it is not under any force.

[0026] During use, when the length of the device needs to be adjusted, pressing the button 9 will move the control lever 8, which in turn will move the moving plate 7. The moving plate 7 will cause the locking block 16 to disengage from the slot 15, thus freeing the adjusting rod 5 from restriction. The adjusting rod 5 can then be pulled to adjust the overall length of the device. After adjusting the device to the required length, releasing the button 9 will reset the moving plate 7 via the spring 12 inside the slide groove 11, causing the locking block 16 to engage with the slot 15 again, thereby limiting the adjustment rod 5.

[0027] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An adjustable gas spring comprising a cylinder (1), characterized in that: The cylinder (1) is provided with a piston rod (3) inside. The top of the piston rod (3) is provided with an adjustment groove (4). An adjustment rod (5) is slidably connected inside the adjustment groove (4). A groove (14) is provided inside the adjustment rod (5). A limit component is provided inside the adjustment rod (5). The limiting component includes a movable plate (7) that is slidably connected inside the groove (14). A locking block (16) is fixedly connected to one side of the movable plate (7). A locking groove (15) is opened on the inner wall of the piston rod (3). The locking groove (15) is movably engaged with the locking block (16). A control component is provided on one side of the locking block (16), and a reset component is provided on one side of the movable plate (7).

2. An adjustable gas spring according to claim 1, characterized in that: The inner wall of the groove (14) is provided with a through groove, and the locking block (16) is slidably sleeved with the through groove.

3. An adjustable gas spring according to claim 1, wherein: The bottom of the cylinder (1) is fixedly connected to a first mounting ring (2), and the top of the adjusting rod (5) is fixedly connected to a second mounting ring (6).

4. An adjustable gas spring according to claim 1, wherein: The control component includes a control lever (8), which is slidably sleeved with an adjusting rod (5), and a button (9) is fixedly connected to one end of the control lever (8).

5. An adjustable gas spring as defined in claim 1, wherein: The reset component includes a connecting post (10), a groove (11) is provided on one side of the connecting post (10), a spring (12) is fixedly connected to the inner wall of the groove (11), a sliding rod (13) is fixedly connected to one end of the spring (12), and the outer wall of the sliding rod (13) is slidably connected to the inner wall of the groove (11).

6. An adjustable gas spring according to claim 5, wherein: One end of the connecting column (10) is fixedly connected to one side of the movable plate (7).

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