Portable gas spring

Abstract

The utility model discloses a portable air spring, and relates to the field of air springs, the portable air spring comprises an air cylinder, the inner wall of the air cylinder is slidably connected with a supporting pipe, one end of the supporting pipe is provided with a stroke adjusting assembly, the stroke adjusting assembly comprises a piston, the piston is slidably connected with the inner wall of the air cylinder, and a sliding groove is formed in the piston; and vent grooves are formed in the two sides of the sliding groove, the inner wall of the sliding groove is slidably connected with a vent rod, and one end of the vent rod is fixedly connected with a reset rod. A push rod is pushed downwards, so that a reset rod moves downwards and extrudes a reset spring, when the reset rod moves downwards, a ventilation rod is pushed to open a sealing block, and an oil-gas mixture on one side of a piston can enter a sliding groove, passes through ventilation grooves in the two sides of the sliding groove and then flows into the other side of the piston; by changing the pressure difference between the two sides of the piston, the stroke distance of the pushing supporting pipe can be adjusted, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas springs, in particular to a portable gas spring. Background Art

[0002] Gas springs are industrial accessories that provide support, cushioning, braking, and height and angle adjustment. They are widely used in many industries, including office equipment, furniture manufacturing, and machining. With the development of the times and the needs of daily life, multifunctional storage beds have become popular among consumers. The raising and lowering of storage bed decks are mainly achieved by gas springs, which generally use oil, gas, or a mixture of oil and gas as the transmission medium.

[0003] The gas spring in the prior art has a relatively single stroke during use, and cannot make corresponding changes to the stroke according to actual conditions. After the staff installs the gas spring, if the stroke of the support rod fails to reach the ideal distance, the gas spring needs to be disassembled again, and the stroke needs to be readjusted before it is installed. This adjustment method is too cumbersome and reduces the convenience of the gas spring. Therefore, the utility model provides a convenient gas spring. Utility Model Content

[0004] (1) Technical problems solved

[0005] In view of the above problems existing in the prior art, the utility model provides a convenient gas spring.

[0006] (2) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a portable gas spring, comprising a cylinder, an inner wall of the cylinder being slidably connected to a support tube, one end of the support tube being provided with a stroke adjustment assembly;

[0008] The stroke adjustment assembly includes a piston, which is slidably connected to the inner wall of the cylinder, and a sliding groove is provided inside the piston, ventilation grooves are provided on both sides of the sliding groove, and a ventilation rod is slidably connected to the inner wall of the sliding groove, one end of the ventilation rod is fixedly connected to a reset rod, and one end of the reset rod is fixedly connected to a push rod.

[0009] As a preferred solution of the portable gas spring of the present invention, a sealing block is fixedly connected to one end of the vent rod away from the reset rod, and the size of the sealing block is adapted to the size of the sliding groove.

[0010] As a preferred solution of the portable gas spring of the utility model, the reset rod and the push rod are both located on the inner wall of the support tube, and a reset spring is sleeved on the surface of the reset rod, and one end of the reset spring is fixedly connected to the surface of the piston.

[0011] As a preferred solution of the portable gas spring described in the utility model, mounting plates are provided at both ends of the cylinder, a sealing assembly is provided on one side of the mounting plate, the sealing assembly includes a sealing groove, the sealing groove is opened on the inner wall of the cylinder, and the inner wall of the sealing groove is provided with a matching sealing rubber ring, the surface of the sealing rubber ring is fixedly connected to a sealing plug, and the sealing plug is fixedly and slidingly connected to the inner wall of the cylinder.

[0012] As a preferred solution of the portable gas spring of the present invention, an air injection port is provided on the surface of the cylinder, and a connecting seat is provided at one end of the cylinder away from the support tube, and the connecting seat is fixedly connected to the surface of the mounting plate.

[0013] As a preferred solution of the portable gas spring of the present invention, a through hole is provided on the surface of the sealing plug, and the inner wall of the through hole is slidably connected to the surface of the support tube.

[0014] As a preferred solution of the portable gas spring described in the utility model, a cleaning assembly is provided on the side of the cylinder close to the support tube, and the cleaning assembly includes a support ring frame, which is fixedly connected to the surface of the mounting plate, and the upper end of the support ring frame is fixedly connected to a fixing plate, and the surface of the fixing plate is fixedly connected to a cleaning ring, and the cleaning ring is slidably connected to the surface of the support tube.

[0015] (3) Beneficial effects

[0016] The utility model provides a convenient gas spring with the following beneficial effects:

[0017] 1. By pushing the push rod downward, the reset rod moves downward and squeezes the reset spring. When the reset rod moves downward, the vent rod is pushed to open the sealing block, so that the oil and gas mixture on one side of the piston can enter the sliding groove and flow into the other side of the piston through the vent grooves on both sides of the sliding groove. By changing the pressure difference on both sides of the piston, the stroke distance of the support tube can be adjusted, thereby improving the practicality of the device. When the adjustment is completed, the elastic deformation is restored by the reset spring, thereby driving the vent rod and the sealing block to return to their original position, thereby sealing the sliding groove.

[0018] 2. The mutual cooperation between the secret groove and the sealing rubber ring enhances the airtightness between the mounting plate and the cylinder, preventing the oil-gas mixture in the cylinder from overflowing from the gap, thereby extending the service life of the device. When the support tube pops out from the cylinder, the cleaning ring on the fixed plate can scrape out the oil-gas mixture on the surface of the support tube to prevent external dust and impurities from adhering to the surface of the support tube through the oil-gas mixture. When the support tube is retracted, the cleaning ring can clean the dust on the surface of the support tube to prevent fine dust from entering the interior of the cylinder through the support tube, thereby contaminating the oil-gas mixture inside the cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a schematic structural diagram of the utility model as a whole;

[0021] Figure 2 This is a schematic diagram of the internal structure of the cylinder in the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the support tube in the utility model;

[0023] Figure 4 It is a structural diagram of the stroke adjustment component in the utility model;

[0024] Figure 5 It is a structural diagram of the sealing component in the utility model;

[0025] Figure 6 It is a structural diagram of the cleaning component in the utility model.

[0026] In the figure, 1. cylinder; 2. support tube; 3. stroke adjustment assembly; 301. piston; 302. sliding groove; 303. sealing block; 304. vent rod; 305. reset rod; 306. push rod; 307. reset spring; 308. vent groove; 4. mounting plate; 5. connecting seat; 6. sealing assembly; 601. sealing groove; 602. sealing rubber ring; 603. sealing plug; 604. through hole; 7. cleaning assembly; 701. support ring frame; 702. fixing plate; 703. cleaning ring; 8. air injection port. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0028] Example 1

[0029] Reference Figure 2 、 Figure 3 and Figure 4 , which is the first embodiment of the utility model, provides a portable gas spring, including a cylinder 1, a support tube 2 is slidably connected to the inner wall of the cylinder 1, and a stroke adjustment component 3 is provided at one end of the support tube 2;

[0030] The stroke adjustment assembly 3 includes a piston 301, which is slidably connected to the inner wall of the cylinder 1, and a sliding groove 302 is provided inside the piston 301, and ventilation grooves 308 are provided on both sides of the sliding groove 302, and a ventilation rod 304 is slidably connected to the inner wall of the sliding groove 302, one end of the ventilation rod 304 is fixedly connected to the reset rod 305, and one end of the reset rod 305 is fixedly connected to the push rod 306.

[0031] Specifically, the end of the ventilation rod 304 away from the reset rod 305 is fixedly connected to the sealing block 303, the size of the sealing block 303 is adapted to the size of the sliding groove 302, the reset rod 305 and the push rod 306 are both located on the inner wall of the support tube 2, and the surface of the reset rod 305 is sleeved with a reset spring 307, one end of the reset spring 307 is fixedly connected to the surface of the piston 301.

[0032] Furthermore, when it is necessary to adjust the stroke distance of the push rod 306, the push rod 306 can be pushed downward to move the reset rod 305 downward and squeeze the reset spring 307. When the reset rod 305 moves downward, the ventilation rod 304 is pushed to open the sealing block 303, so that the oil and gas mixture on one side of the piston 301 can enter the sliding groove 302 and flow into the other side of the piston 301 through the ventilation grooves 308 on both sides of the sliding groove 302. By changing the pressure difference on both sides of the piston 301, the stroke distance of the support tube 2 can be adjusted, thereby improving the practicality of the device. When the adjustment is completed, the elastic deformation is restored by the reset spring 307, thereby driving the ventilation rod 304 and the sealing block 303 to return to their original position, thereby sealing the sliding groove 302.

[0033] Example 2

[0034] Reference Figure 1 、 Figure 5 and Figure 6 , which is the second embodiment of the present utility model, and this embodiment is based on the previous embodiment. Mounting plates 4 are provided at both ends of the cylinder 1, and a sealing assembly 6 is provided on one side of the mounting plate 4. The sealing assembly 6 includes a sealing groove 601, and the sealing groove 601 is opened on the inner wall of the cylinder 1, and a matching sealing rubber ring 602 is provided on the inner wall of the sealing groove 601. A sealing plug 603 is fixedly connected to the surface of the sealing rubber ring 602, and the sealing plug 603 is fixedly and slidably connected to the inner wall of the cylinder 1.

[0035] Specifically, a gas injection port 8 is provided on the surface of the cylinder 1, and a connecting seat 5 is provided at the end of the cylinder 1 away from the support tube 2, and the connecting seat 5 is fixedly connected to the surface of the mounting plate 4. A through hole 604 is provided on the surface of the sealing plug 603, and the inner wall of the through hole 604 is slidably connected to the surface of the support tube 2. A cleaning assembly 7 is provided on the side of the cylinder 1 close to the support tube 2, and the cleaning assembly 7 includes a support ring frame 701, and the support ring frame 701 is fixedly connected to the surface of the mounting plate 4, and the upper end of the support ring frame 701 is fixedly connected to the fixing plate 702, and the surface of the fixing plate 702 is fixedly connected to the cleaning ring 703, and the cleaning ring 703 is slidably connected to the surface of the support tube 2.

[0036] Furthermore, by providing a sealing groove 601 on one side of the mounting plate 4, the airtightness between the mounting plate 4 and the cylinder 1 can be enhanced through the mutual cooperation between the sealing groove and the sealing rubber ring 602, thereby preventing the oil-gas mixture in the cylinder 1 from overflowing from the gap, thereby enhancing the service life of the device. When the support tube 2 pops out from the cylinder 1, the cleaning ring 703 on the fixing plate 702 can scrape out the oil-gas mixture on the surface of the support tube 2 to prevent external dust and impurities from adhering to the surface of the support tube 2 through the oil-gas mixture. When the support tube 2 is retracted, the cleaning ring 703 can clean the dust on the surface of the support tube 2 to prevent fine dust from entering the interior of the cylinder 1 through the support tube 2, thereby contaminating the oil-gas mixture inside the cylinder 1.

[0037] Working principle: When in use, by opening a sealing groove 601 on one side of the mounting plate 4, the airtightness between the mounting plate 4 and the cylinder 1 can be enhanced through the mutual cooperation of the sealing groove and the sealing rubber ring 602, so as to prevent the oil-gas mixture in the cylinder 1 from overflowing from the gap, thereby enhancing the service life of the device; when the support tube 2 pops out from the cylinder 1, the cleaning ring 703 on the fixing plate 702 can scrape out the oil-gas mixture on the surface of the support tube 2, so as to prevent external dust and impurities from adhering to the surface of the support tube 2 through the oil-gas mixture; when the support tube 2 is retracted, the cleaning ring 703 can clean the dust on the surface of the support tube 2, so as to prevent fine dust from entering the interior of the cylinder 1 through the support tube 2, thereby causing pollution to the oil-gas mixture in the cylinder 1; when it is needed To adjust the travel distance of the push rod 306, the push rod 306 can be pushed downward to move the reset rod 305 downward and squeeze the reset spring 307. When the reset rod 305 moves downward, the ventilation rod 304 is pushed to open the sealing block 303, so that the oil and gas mixture on one side of the piston 301 can enter the sliding groove 302 and flow into the other side of the piston 301 through the ventilation grooves 308 on both sides of the sliding groove 302. By changing the pressure difference on both sides of the piston 301, the travel distance of the support tube 2 can be adjusted to improve the practicality of the device. When the adjustment is completed, the elastic deformation is restored by the reset spring 307, thereby driving the ventilation rod 304 and the sealing block 303 to return to their original position, thereby sealing the sliding groove 302.

[0038] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

Claims

1. A portable gas spring, comprising a cylinder (1), characterized in that: The inner wall of the cylinder (1) is slidably connected to a support tube (2), and one end of the support tube (2) is provided with a stroke adjustment component (3); The stroke adjustment assembly (3) comprises a piston (301), the piston (301) is slidably connected to the inner wall of the cylinder (1), and a sliding groove (302) is provided inside the piston (301), ventilation grooves (308) are provided on both sides of the sliding groove (302), and a ventilation rod (304) is slidably connected to the inner wall of the sliding groove (302), one end of the ventilation rod (304) is fixedly connected to a reset rod (305), and one end of the reset rod (305) is fixedly connected to a push rod (306).

2. A portable gas spring according to claim 1, characterized in that: One end of the ventilation rod (304) away from the reset rod (305) is fixedly connected to a sealing block (303), and the size of the sealing block (303) is adapted to the size of the sliding groove (302).

3. The portable gas spring according to claim 1, characterized in that: The reset rod (305) and the push rod (306) are both located on the inner wall of the support tube (2), and a reset spring (307) is sleeved on the surface of the reset rod (305), and one end of the reset spring (307) is fixedly connected to the surface of the piston (301).

4. The portable gas spring according to claim 1, characterized in that: Mounting plates (4) are provided at both ends of the cylinder (1), and a sealing assembly (6) is provided on one side of the mounting plate (4). The sealing assembly (6) includes a sealing groove (601), the sealing groove (601) is opened on the inner wall of the cylinder (1), and a matching sealing rubber ring (602) is provided on the inner wall of the sealing groove (601). A sealing plug (603) is fixedly connected to the surface of the sealing rubber ring (602), and the sealing plug (603) is fixedly slidably connected to the inner wall of the cylinder (1).

5. The portable gas spring according to claim 4, characterized in that: An air injection port (8) is provided on the surface of the cylinder (1), and a connecting seat (5) is provided at one end of the cylinder (1) away from the support tube (2), wherein the connecting seat (5) is fixedly connected to the surface of the mounting plate (4).

6. The portable gas spring according to claim 4, characterized in that: A through hole (604) is provided on the surface of the sealing plug (603), and the inner wall of the through hole (604) is slidably connected to the surface of the support tube (2).

7. The portable gas spring according to claim 4, characterized in that: A cleaning assembly (7) is provided on a side of the cylinder (1) close to the support tube (2), and the cleaning assembly (7) comprises a support ring frame (701), the support ring frame (701) is fixedly connected to the surface of the mounting plate (4), and the upper end of the support ring frame (701) is fixedly connected to a fixing plate (702), the surface of the fixing plate (702) is fixedly connected to a cleaning ring (703), and the cleaning ring (703) is slidably connected to the surface of the support tube (2).

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