CN221347703U - Variable damping structure gas spring - Google Patents

Abstract

The utility model discloses a variable damping structure gas spring, which comprises a cylinder barrel, wherein the gas spring is fixedly arranged at the bottom end of the inside of the cylinder barrel, a piston is fixedly arranged at the top of the gas spring, a piston rod is fixedly arranged at the top of the piston, and the piston rod is in sliding connection with the cylinder barrel, and the variable damping structure gas spring further comprises: the cylinder barrel and one side of the top of the piston are provided with a variable resistance component, wherein the variable resistance component comprises a through hole which is formed in one side of the top of the piston in a penetrating way, a fixed rod is fixedly arranged in the through hole, a threaded hole is formed in the center of the top of the fixed rod in a penetrating way, a screw rod is connected with the internal threads of the threaded hole, a cover plate is fixedly arranged at the top of the screw rod, and a rotating rod is connected to one side of the top of the cylinder barrel in a rotating way; the resistance can be changed according to the requirement by a user, the screw can be limited after the resistance is changed, the screw can be prevented from shifting when in use, the resistance is changed, and the practicability is improved.

Description

Variable damping structure gas spring

Technical Field

The utility model relates to the technical field of gas spring equipment, in particular to a gas spring with a variable damping structure.

Background

The gas spring is an industrial fitting with functions of supporting, buffering, braking, height adjustment, angle adjustment and the like. It is composed of the following parts: a pressure cylinder, a piston rod, a piston, a sealing guide sleeve, a filler, an in-cylinder control element, an out-cylinder control element, a joint and the like. The principle is that inert gas or oil-gas mixture is filled in a closed pressure cylinder to make the pressure in the cavity be several times or tens times higher than the atmospheric pressure, and the piston rod is moved by the pressure difference generated by the fact that the cross section area of the piston rod is smaller than that of the piston.

Publication number CN214888561U discloses a variable damping compressed gas spring, this patent is through promoting the piston rod, the piston rod promotes the piston and removes, the piston removes the cylinder that promotes hydraulic oil in the cylinder and flows to the cylinder of piston rod one side through the through-hole, the piston removes simultaneously compression spring, spring compression atress, rotate the apron, the apron rotates and makes the screw rod follow and rotate, screw rod rotation and support threaded connection, the pulling apron removes to support one side, and then make the interval of apron and piston reduce, and then lead to hydraulic oil to pass through the cross section and diminish, and then the moving speed of piston slows down, accomplish the work of varistor this moment, make resistance adjustment according to the demand, make can be applicable to multiple condition, prevent simultaneously that the condition that the piston rod stretches out fast from taking place, and then the security when having improved the use, but this patent still has following problem in the in-process of the in-service use:

Through rotating the apron, apron rotates and makes the screw rod follow the rotation, and then makes the interval of apron and piston reduce, and then leads to hydraulic oil to pass through the cross section diminish, and then slowed down the travel speed of piston, accomplish the work of varistor this moment, but the screw rod rotates the time spent and does not receive spacingly, the spring is moving while can be according to the demand regulation resistance, but the screw rod does not receive spacingly after adjusting, the spring can produce not hard up at the in-process screw rod that removes, and then can lead to the apron to remove, and then can change the resistance.

A variable damping structure gas spring is proposed in order to solve the problems set forth in the foregoing.

Disclosure of utility model

The utility model aims to provide a variable damping structure gas spring, which solves the problems that in the prior art, by rotating a cover plate, the cover plate rotates to enable a screw rod to rotate along with the cover plate, the distance between the cover plate and a piston is reduced, the passing cross section of hydraulic oil is reduced, the moving speed of the piston is slowed down, and the variable resistance is completed at the moment, but the screw rod is not limited after rotating in actual use, the spring can adjust resistance according to requirements when moving, but the screw rod is not limited after adjusting, the screw rod can loosen in the moving process of the spring, and the cover plate can move, and the resistance can be changed.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a variable damping structure gas spring comprises a cylinder barrel;

The gas spring is fixedly arranged at the bottom end of the inner part of the cylinder barrel, the piston is fixedly arranged at the top of the gas spring, the piston rod is fixedly arranged at the top of the piston, and the piston rod is in sliding connection with the cylinder barrel;

Further comprises:

a variable resistance component is arranged on one side of the tops of the cylinder barrel and the piston;

The variable resistance assembly comprises a through hole which is formed in one side of the top of the piston in a penetrating way, a fixed rod is fixedly arranged in the through hole, a threaded hole is formed in the center of the top of the fixed rod in a penetrating way, a screw rod is connected with the internal threads of the threaded hole, and a cover plate is fixedly arranged at the top of the screw rod;

The cylinder barrel is characterized in that a rotating rod is connected to one side of the top of the cylinder barrel in a rotating mode, two groups of fixing blocks are symmetrically arranged on one side of the top of the cylinder barrel, two sliding rods are fixedly arranged between the two groups of fixing blocks respectively, and sliding sleeves are sleeved on one sides of the outer portions of the two sliding rods.

Preferably, the other sides of the outer parts of the two sliding rods are respectively sleeved with a reset spring, one end of each reset spring is fixedly connected with one side fixing block, the other end of each reset spring is fixedly connected with the sliding sleeve, and an installation rod is fixedly installed between the two sliding sleeves.

Preferably, one side fixed mounting of installation pole has the connecting rod, and the one end fixed mounting that the connecting rod kept away from the installation pole has the stop collar to inside one side fixed mounting of stop collar has a plurality of first latch, and outside one side fixed mounting of dwang has a plurality of second latch moreover, and first latch and second latch block are connected.

Preferably, two sides that the sliding sleeve kept away from mutually are all sliding connection has the movable rod, and the mounting groove has been seted up to the one end of movable rod to the movable rod articulates there is the rolling ball through this mounting groove, and the spacing groove has been seted up to one side of slide bar moreover, rolling ball and spacing groove adaptation are connected moreover.

Preferably, a telescopic spring is sleeved on one side of the outer part of the movable rod, one end of the telescopic spring is fixedly connected with the sliding sleeve, a connecting block is fixedly arranged at the other end of the telescopic spring, the connecting block is fixedly connected with the movable rod, and a deflector rod is fixedly arranged at one end, far away from the sliding sleeve, of the movable rod.

Preferably, a sliding groove is formed in the lower portion of the inside of the rotating rod, a moving rod is connected to the sliding groove in a sliding mode, an extrusion spring is fixedly installed at one end of the moving rod, and one end of the extrusion spring is fixedly connected with the rotating rod.

Preferably, the bottom fixed mounting of movable rod has the connecting seat, and the inside bilateral symmetry of connecting seat installs the fixture block to the draw-in groove has been seted up to the outside bilateral symmetry of apron, and the fixture block is connected with the draw-in groove block moreover.

Compared with the prior art, the utility model has the beneficial effects that: this become damping structure gas spring has set up the varistor subassembly in cylinder and top one side of piston for the user can change resistance according to the demand, and can carry out spacingly to the screw rod after changing, can avoid the screw rod to shift when using, and then change resistance, has promoted the practicality, and its concrete content is as follows:

1. The variable resistance assembly is arranged on one side of the top of the cylinder barrel and the piston, the movable mounting rod can be rotated when resistance is changed, the mounting rod can drive the limiting sleeve to move through the connecting rod after moving, the first clamping tooth and the second clamping tooth are separated, the rotating rod can be rotated, the connecting seat can be driven to rotate after rotating, the connecting seat can drive the cover plate to rotate through the matching of the clamping block and the clamping groove, the screw is driven to rotate, the screw can be moved through threaded connection with the threaded hole on the fixing rod after rotating, the cover plate can be driven to move, the cover plate can be extruded to restore deformation while the cover plate moves, the moving rod can slide on the rotating rod, the connecting seat can be tightly attached to the cover plate, resistance can be adjusted according to requirements, the limiting sleeve can be reset to be clamped with the second clamping tooth after adjustment, the rotating rod can be limited, a user can change resistance according to requirements through the variable resistance assembly, the screw can be limited after the change, the screw can be prevented from moving when the screw is used, and the practicality is improved;

2. Can stir the installation pole and remove when removing the stop collar, can drive the sliding sleeve and slide on the slide bar after the installation pole removes, can compress reset spring after the sliding sleeve removes, and the movable rod on the sliding sleeve removes, the antifriction ball rotates on the slide bar when the movable rod removes, the telescopic spring resumes deformation when moving to and aligning with the spacing groove, and then can make the movable rod insert in the spacing groove, make can spacing to the sliding sleeve, and then can carry out spacing to the spacing cover, can rotate the dwang, when spacing to the dwang after the resistance is adjusted, the pulling driving lever drives the movable rod and slides on the sliding sleeve, can stretch the telescopic spring through the connecting block after the movable rod removes, make the movable rod break away from with the spacing groove, and then make the sliding sleeve lose spacing, reset spring can resume deformation, and then make the stop collar reset and spacing to the dwang, make the user be convenient for rotate and spacing to the dwang, convenience and practicality of using have been promoted.

Drawings

FIG. 1 is a schematic view of a front cross-sectional structure of the present utility model;

FIG. 2 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;

FIG. 3 is a schematic top view of the present utility model;

FIG. 4 is an enlarged view of area B of FIG. 3 according to the present utility model;

fig. 5 is a schematic view of a cross-sectional structure of a connecting seat according to the present utility model.

In the figure: 1. a cylinder; 101. a gas spring; 102. a piston; 103. a piston rod; 2. a varistor assembly; 201. a through hole; 202. a fixed rod; 203. a threaded hole; 204. a screw; 205. a cover plate; 206. a rotating lever; 207. a fixed block; 208. a slide bar; 2081. a return spring; 209. a sliding sleeve; 210. a mounting rod; 211. a connecting rod; 212. a limit sleeve; 213. a first latch; 214. a second latch; 215. a movable rod; 216. a telescopic spring; 217. a connecting block; 218. a deflector rod; 219. a rolling ball; 220. a limit groove; 221. a moving rod; 222. extruding a spring; 223. a connecting seat; 224. a clamping block; 225. a clamping groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present utility model provides the following technical solutions: the utility model provides a variable damping structure air spring, includes cylinder 1, and the inside bottom fixed mounting of cylinder 1 has air spring 101, and air spring 101's top fixed mounting has piston 102 to piston 102's top fixed mounting has piston rod 103, and piston rod 103 and cylinder 1 sliding connection still include: the cylinder 1 is provided with the varistor subassembly 2 with one side of the top of piston 102, wherein, the varistor subassembly 2 is including running through the through-hole 201 of seting up in one side of piston 102 top, and the inside fixed mounting of through-hole 201 has dead lever 202, and the screw hole 203 has been seted up in the top center of dead lever 202 running through, and the inside threaded connection of screw hole 203 has screw 204, and the top fixed mounting of screw 204 has apron 205, wherein, the top one side of cylinder 1 rotates and is connected with dwang 206, and the top of cylinder 1 is located the one side symmetry of dwang 206 and installs two sets of fixed blocks 207, and respectively fixed mounting has two slide bars 208 between two sets of fixed blocks 207, and the outside one side of two slide bars 208 all overlaps and is equipped with sliding sleeve 209, make the user change resistance according to the demand through varistor subassembly 2, and can carry out spacingly to screw 204 after the change, can avoid screw 204 to shift when using, and then change the resistance, the practicality has been promoted.

The other sides of the outer parts of the two sliding rods 208 are respectively sleeved with a reset spring 2081, one end of the reset spring 2081 is fixedly connected with one side fixing block 207, the other end of the reset spring 2081 is fixedly connected with the sliding sleeves 209, a mounting rod 210 is fixedly arranged between the two sliding sleeves 209, the sliding sleeves 209 can automatically reset after moving, one side of the mounting rod 210 is fixedly provided with a connecting rod 211, one end of the connecting rod 211 far away from the mounting rod 210 is fixedly provided with a limiting sleeve 212, one side of the inner part of the limiting sleeve 212 is fixedly provided with a plurality of first clamping teeth 213, one side of the outer part of the rotating rod 206 is fixedly provided with a plurality of second clamping teeth 214, the first clamping teeth 213 are in clamping connection with the second clamping teeth 214, the rotating rod 206 can be limited, one side of the two sliding sleeves 209 far away from each other is slidably connected with a movable rod 215, one end of the movable rod 215 is provided with a mounting groove, the movable rod 215 is hinged with a rolling ball 219 through the mounting groove, one side of the sliding rod 208 is provided with a limit groove 220, the rolling ball 219 is connected with the limit groove 220 in an adapting way, the sliding sleeve 209 can be limited, one side of the outer part of the movable rod 215 is sleeved with a telescopic spring 216, one end of the telescopic spring 216 is fixedly connected with the sliding sleeve 209, the other end of the telescopic spring 216 is fixedly provided with a connecting block 217, the connecting block 217 is fixedly connected with the movable rod 215, one end of the movable rod 215 far away from the sliding sleeve 209 is fixedly provided with a deflector rod 218, so that the movable rod 215 can automatically reset after moving, a sliding groove is arranged below the inner part of the rotating rod 206, the inner part of the sliding groove is connected with a moving rod 221 in a sliding way, one end of the moving rod 221 is fixedly provided with a pressing spring 222, one end of the pressing spring 222 is fixedly connected with the rotating rod 206, the connecting seat 223 can be always clung to the cover plate 205, the bottom of movable rod 221 is fixedly mounted with connecting seat 223, and the inside bilateral symmetry of connecting seat 223 installs fixture block 224 to draw-in groove 225 has been seted up to the outside bilateral symmetry of apron 205, and fixture block 224 and draw-in groove 225 block are connected moreover, make the rotation of connecting seat 223 can drive screw 204 rotation.

Working principle: before the variable damping structure gas spring is used, the whole situation of the device needs to be checked firstly, normal work can be confirmed, according to the scheme shown in fig. 1-5, a variable resistance component 2 is arranged on one side of the tops of a cylinder barrel 1 and a piston 102, a movable mounting rod 210 can be rotated when the variable resistance is carried out, after the mounting rod 210 moves, a limit sleeve 212 can be driven by a connecting rod 211 to move, and then a first latch 213 and a second latch 214 are separated, a limit rod 206 loses limit, the rotating rod 206 can be rotated, the rotating rod 206 can rotate, a connecting seat 223 can be driven to rotate after rotating, the connecting seat 223 can drive a cover plate 205 to rotate through the cooperation of a clamping block 224 and a clamping groove 225, and then a screw 204 can be driven to rotate, after the screw 204 rotates, the cover plate 205 can be driven to move through the threaded connection with a threaded hole 203 on a fixed rod 202, and the cover plate 205 can be driven to move, and the cover plate 205 can be deformed in a restoration mode, and then the movable rod 221 can slide on the rotating rod 206, and the connecting seat 213 can be tightly attached to the cover plate 205, and resistance can be adjusted according to requirements, after adjustment, the first latch 212 and the second latch 213 can be reset to the limit sleeve 214 can be driven to change the resistance, and then the resistance can be changed, and the practical resistance can be changed, and the requirement can be changed, and can be further, when the resistance can be changed, and the resistance can be used by the resistance can be changed, and can be subjected to the resistance can be changed;

When the limiting sleeve 212 is moved, the mounting rod 210 can be shifted to move, the sliding sleeve 209 can be driven to slide on the sliding rod 208 after the mounting rod 210 moves, the reset spring 2081 can be compressed after the sliding sleeve 209 moves, and the movable rod 215 on the sliding sleeve 209 moves, the rolling ball 219 rotates on the sliding rod 208 while the movable rod 215 moves, when the movable rod 215 moves to be aligned with the limiting groove 220, the telescopic spring 216 recovers deformation, and then the movable rod 215 can be inserted into the limiting groove 220, so that the sliding sleeve 209 can be limited, the limiting sleeve 212 can be further limited, the rotating rod 206 can be rotated, after resistance adjustment, when the rotating rod 206 is limited, the pulling deflector 218 drives the movable rod 215 to slide on the sliding sleeve 209, after the movable rod 215 moves, the telescopic spring 216 can be stretched through the connecting block 217, so that the movable rod 215 is separated from the limiting groove 220, further the sliding sleeve 209 loses limitation, the reset spring 2081 can recover deformation, and then the limiting sleeve 212 is reset to limit the rotating rod 206, so that a user can conveniently rotate and limit the rotating rod 206, and the convenience and practicability of use are improved.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims (7)

1. A variable damping structure gas spring comprises a cylinder barrel (1);

A gas spring (101) is fixedly arranged at the bottom end of the inner part of the cylinder barrel (1), a piston (102) is fixedly arranged at the top of the gas spring (101), a piston rod (103) is fixedly arranged at the top of the piston (102), and the piston rod (103) is in sliding connection with the cylinder barrel (1);

characterized by further comprising:

a variable resistance component (2) is arranged on one side of the tops of the cylinder barrel (1) and the piston (102);

the variable resistance assembly (2) comprises a through hole (201) which is formed in one side of the top of the piston (102) in a penetrating mode, a fixed rod (202) is fixedly arranged in the through hole (201), a threaded hole (203) is formed in the center of the top of the fixed rod (202) in a penetrating mode, a screw rod (204) is connected with the internal threads of the threaded hole (203), and a cover plate (205) is fixedly arranged at the top of the screw rod (204);

Wherein, top one side of cylinder (1) rotates and is connected with dwang (206), and the top of cylinder (1) is located one side symmetry of dwang (206) and installs two sets of fixed blocks (207) to two slide bars (208) are fixed mounting respectively between two sets of fixed blocks (207), and outside one side of two slide bars (208) all overlaps and is equipped with sliding sleeve (209).

2. A variable damping structure gas spring according to claim 1, wherein: the outside opposite side of two slide bar (208) is all overlapped and is equipped with reset spring (2081), and one end and one side fixed block (207) fixed connection of reset spring (2081) to the other end and sliding sleeve (209) fixed connection of reset spring (2081), and fixed mounting has installation pole (210) between two sliding sleeve (209) moreover.

3. A variable damping structure gas spring according to claim 2, wherein: one side fixed mounting of installation pole (210) has connecting rod (211), and one end fixed mounting that installation pole (210) was kept away from to connecting rod (211) has stop collar (212) to inside one side fixed mounting of stop collar (212) has a plurality of first latch (213), and outside one side fixed mounting of dwang (206) has a plurality of second latch (214), and first latch (213) are connected with second latch (214) block moreover.

4. A variable damping structure gas spring according to claim 2, wherein: two sliding sleeves (209) are all sliding connection in one side that keeps away from mutually has movable rod (215), and the mounting groove has been seted up to one end of movable rod (215) to movable rod (215) have rolling ball (219) through this mounting groove hinge, and spacing groove (220) have been seted up to one side of slide bar (208), and rolling ball (219) and spacing groove (220) adaptation are connected moreover.

5. The variable damping structure gas spring according to claim 4, wherein: the outside one side cover of movable rod (215) is equipped with extension spring (216), and the one end and the sliding sleeve (209) fixed connection of extension spring (216) to the other end fixed connection of extension spring (216) has connecting block (217), and connecting block (217) and movable rod (215) fixed connection moreover, and the one end fixed mounting that the sliding sleeve (209) was kept away from to movable rod (215) has driving lever (218).

6. A variable damping structure gas spring according to claim 1, wherein: the sliding groove is formed in the lower portion of the inside of the rotating rod (206), the moving rod (221) is connected to the inside of the sliding groove in a sliding mode, the extrusion spring (222) is fixedly arranged at one end of the moving rod (221), and one end of the extrusion spring (222) is fixedly connected with the rotating rod (206).

7. The variable damping structure gas spring according to claim 6, wherein: the bottom fixed mounting of movable rod (221) has connecting seat (223), and fixture block (224) are installed to the inside bilateral symmetry of connecting seat (223) to draw-in groove (225) have been seted up to the outside bilateral symmetry of apron (205), and fixture block (224) are connected with draw-in groove (225) block moreover.