Aluminum double-cylinder built-in inflatable hydraulic shock absorber

Abstract

The utility model provides an aluminum double-cylinder built-in inflatable hydraulic shock absorber, which relates to the technical field of shock absorbers and comprises an oil storage cylinder, a valve rod is slidably mounted in the middle of the oil storage cylinder in a penetrating manner, an inner cavity is formed in the oil storage cylinder, and a circulation hole is formed in the inner wall of the oil storage cylinder and communicated with the inner cavity. A first valve plate and a second valve plate are fixedly installed at the lower end of the valve rod, the first valve plate and the second valve plate are both installed in the oil storage cylinder in a sliding mode, and an adjusting assembly is arranged on the oil storage cylinder. Meanwhile, the connecting rod can be driven to move, the piston can be driven to move in the middle of the inner cavity at the moment, the piston adjusts the space of the inner cavity according to the use condition, the moving degree of the valve rod is controlled, the damping hardness of the device can be controlled, and comfort is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to shock absorber technical field, specifically, relate to a kind of aluminium double-cylinder built-in pneumatic hydraulic shock absorber. BACKGROUND

[0002] Shock absorber is used to suppress the shock of spring rebound and the impact from the road. It is widely used in vehicles to accelerate the damping of frame and body vibration, so as to improve the ride comfort of vehicles. For example, patent application No. CN201510643707.9, a kind of shock absorber, belongs to mechanical technical field. The shock absorber comprises an upper chassis, a sleeve rod, an elastic member, one end of the elastic member is fixedly connected with the outer side wall of the sleeve rod, the other end is fixedly connected with the upper chassis, a piston rod, one end of the piston rod is fixedly connected with the upper chassis, the other end is vertically inserted into the sleeve rod, and the piston rod can move axially in the sleeve rod. The shock absorber has the advantages of simple structure and good buffering effect. In the above technical solution, the hardness of the shock absorber cannot be adjusted according to the use, which affects the comfort of use. SUMMARY

[0003] The main purpose of the utility model is to provide a kind of aluminium double-cylinder built-in pneumatic hydraulic shock absorber, which can effectively solve the problem of the hardness of the shock absorber in the background art cannot be adjusted according to the use, which affects the comfort of use.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows: an aluminium double-cylinder built-in pneumatic hydraulic shock absorber, comprising an oil storage cylinder, a valve rod is slidably installed in the middle of the oil storage cylinder, an inner cavity is formed in the oil storage cylinder, a flow-through hole is formed in the inner wall of the oil storage cylinder and communicates with the inner cavity, a first valve plate and a second valve plate are fixedly installed at the lower end of the valve rod, the first valve plate and the second valve plate are slidably installed in the inner part of the oil storage cylinder, and an adjusting assembly is arranged on the oil storage cylinder.

[0005] As a preferred embodiment, a top disc is fixedly installed at the upper end of the valve rod, and an upper mounting ring is installed on the upper surface of the top disc.

[0006] As a preferred embodiment, a base is fixedly installed on the lower end surface of the oil storage cylinder, a lower mounting ring is installed on the lower surface of the base, and a spring is fixedly installed between the top disc and the base.

[0007] As a preferred embodiment, a rubber elastic piece is installed in the middle of the valve rod.

[0008] As a preferred embodiment, the adjusting assembly comprises a threaded sleeve and a thread, the threaded sleeve is sleeved on the middle part of the oil storage cylinder, the thread is arranged on the peripheral surface of the oil storage cylinder, and the threaded sleeve is engagedly connected with the thread.

[0009] As a preferred embodiment, a connecting rod is fixedly installed on the upper surface of the threaded sleeve, and a mounting disc is fixedly installed at the top end of the connecting rod.

[0010] As preferred, the lower surface of the mounting disc is provided with a sliding groove, a sliding block is slidably arranged in the sliding groove, a slide rod is fixedly arranged on the lower surface of the sliding block, the slide rod is movably arranged through the inner cavity, and the top end of the slide rod is fixedly arranged on the piston which is slidably arranged in the inner cavity.

[0011] Compared with the prior art, the utility model has the advantages of the following beneficial effects:

[0012] (1) when the damping softness needs to be adjusted, the staff rotates the screw sleeve, the screw sleeve is moved through the thread, the connecting rod is moved at the same time, the piston is moved in the middle of the inner cavity at this time, the piston adjusts the space of the inner cavity according to the use condition, the degree of movement of the valve rod is controlled, the softness of the device is controlled, and the comfort is improved.

[0013] (2) when the vehicle bounces, the valve rod moves downward, the first valve piece and the second valve piece are driven to move downward at the same time, the first valve piece and the second valve piece are arranged, the damping stability of the device is higher, when the first valve piece and the second valve piece move downward, the hydraulic oil in the oil storage cylinder flows to the inner cavity through the flow hole, the nitrogen gas stored in the inner cavity generates resistance to the hydraulic oil, when the resistance reaches a certain degree, the valve rod rebounds to perform damping work. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structure schematic view of the utility model of aluminum double cylinder built-in inflation hydraulic shock absorber;

[0015] Figure 2 It is a valve rod structure schematic view of the utility model of aluminum double cylinder built-in inflation hydraulic shock absorber;

[0016] Figure 3 It is an internal structure schematic view of the utility model of aluminum double cylinder built-in inflation hydraulic shock absorber;

[0017] Figure 4 It is an internal side view structure schematic view of the utility model of aluminum double cylinder built-in inflation hydraulic shock absorber;

[0018] Figure 5 It is an enlarged structure schematic view of the utility model of aluminum double cylinder built-in inflation hydraulic shock absorber at A

[0019] In the figure: 1, oil storage cylinder; 2, base; 3, lower mounting ring; 4, rubber elastic sheet; 5, adjusting assembly; 501, screw sleeve; 502, connecting rod; 503, sliding rod; 504, piston; 505, screw thread; 506, mounting disc; 507, sliding groove; 508, sliding block; 6, valve rod; 7, top disc; 8, upper mounting ring; 9, spring; 10, first valve plate, 11, second valve plate; 12, inner cavity; 13, flow-through hole. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] As shown in Figure 1 , 2 , 3, an aluminum double-cylinder built-in pneumatic hydraulic shock absorber, comprising an oil storage cylinder 1, a valve rod 6 is slidably installed in the middle of the oil storage cylinder 1, an inner cavity 12 is formed in the oil storage cylinder 1, a flow-through hole 13 is formed in the inner wall of the oil storage cylinder 1 and communicates with the inner cavity 12, a first valve plate 10 and a second valve plate 11 are fixedly installed at the lower end of the valve rod 6, the first valve plate 10 and the second valve plate 11 are slidably installed in the oil storage cylinder 1, and an adjusting assembly 5 is arranged on the oil storage cylinder 1

[0022] As shown in Figure 1 , 2 , a top disc 7 is fixedly installed at the upper end of the valve rod 6, an upper mounting ring 8 is installed on the upper surface of the top disc 7, a base 2 is fixedly installed at the lower end surface of the oil storage cylinder 1, a lower mounting ring 3 is installed on the lower surface of the base 2, and a spring 9 is fixedly installed between the top disc 7 and the base 2. When the vehicle bounces, the valve rod 6 will move downward, and at the same time, the first valve plate 10 and the second valve plate 11 will be driven to move downward. The first valve plate 10 and the second valve plate 11 make the damping of the device more stable. When the first valve plate 10 and the second valve plate 11 move downward, the hydraulic oil in the oil storage cylinder 1 will flow to the inner cavity 12 through the flow-through hole 13. Because the inner cavity 12 stores nitrogen, it will generate resistance to the hydraulic oil. When the resistance reaches a certain degree, the valve rod 6 will rebound to perform damping work. The top disc 7 is fixedly installed at the upper end of the valve rod 6, the upper mounting ring 8 is installed on the upper surface of the top disc 7, the base 2 is fixedly installed at the lower end surface of the oil storage cylinder 1, the lower mounting ring 3 is installed on the lower surface of the base 2, and the spring 9 is fixedly installed between the top disc 7 and the base 2, which makes it more convenient to install the device. The spring 9 can make the damping performance of the device better.

[0023] AsFigure 1 As shown in the figure, the rubber elastic sheet 4 is installed in the middle of the valve rod 6, which can prevent the collision between the top disc 7 and the oil storage cylinder 1.

[0024] As shown in the figure, the rubber elastic sheet 4 is installed in the middle of the valve rod 6, which can prevent the collision between the top disc 7 and the oil storage cylinder 1. Figure 2 、 3 , 4, 5, the adjusting assembly 5 includes a sleeve 501, a thread 505, the sleeve 501 is sleeved in the middle of the oil storage cylinder 1, the thread 505 is arranged on the peripheral surface of the oil storage cylinder 1, the sleeve 501 is engaged with the thread 505, the upper surface of the sleeve 501 is fixedly installed with a connecting rod 502, the top end of the connecting rod 502 is fixedly installed with a mounting disc 506, the lower surface of the mounting disc 506 is provided with a sliding groove 507, the sliding groove 507 is internally and slidably installed with a sliding block 508, the lower surface of the sliding block 508 is fixedly installed with a sliding rod 503, the sliding rod 503 is movably arranged through the inner cavity 12, the top end of the sliding rod 503 is fixedly installed in the piston 504, the piston 504 is slidably installed in the inner cavity 12, when it is necessary to adjust the softness and hardness of the shock absorption, the staff rotates the sleeve 501, so that the sleeve 501 moves in cooperation with the thread 505, and the connecting rod 502 can be driven to move at the same time, at this time, the piston 504 can be driven to move in the middle of the inner cavity 12, so as to adjust the space of the inner cavity 12 according to the use condition, control the moving degree of the valve rod 6, and control the softness and hardness of the shock absorption of the device, and improve the comfort.

[0025] The working principle of the aluminum double-cylinder built-in inflatable hydraulic shock absorber is as follows:

[0026] When in use, the appropriate hydraulic oil is stored in the oil storage cylinder 1, the inner cavity 12 is filled with nitrogen, after the device is installed on the vehicle, when the vehicle is jolted, the valve rod 6 will move downward, at the same time, the first valve plate 10 and the second valve plate 11 will be driven to move downward, the first valve plate 10 and the second valve plate 11 are arranged to make the device more stable in damping, when the first valve plate 10 and the second valve plate 11 move downward, the hydraulic oil in the oil storage cylinder 1 will flow to the inner cavity 12 through the flow hole 13, because the inner cavity 12 stores nitrogen, the nitrogen will resist the hydraulic oil, when the resistance reaches a certain degree, the valve rod 6 will rebound to perform the damping work, the top disc 7 is fixedly installed on the upper end of the valve rod 6, the upper surface of the top disc 7 is provided with the upper mounting ring 8, the lower end surface of the oil storage cylinder 1 is fixedly provided with the base 2, the lower surface of the base 2 is provided with the lower mounting ring 3, the spring 9 is fixedly installed between the top disc 7 and the base 2, which can make the device more convenient to install, the spring 9 is arranged to make the device have better damping performance, when it is necessary to adjust the damping hardness, the worker rotates the screw sleeve 501, the screw sleeve 501 moves in cooperation with the screw thread 505, at the same time, the connecting rod 502 can be driven to move, at this time, the piston 504 can be driven to move in the middle of the inner cavity 12, according to the use condition, the piston 504 adjusts the space of the inner cavity 12, the degree of movement of the valve rod 6 is controlled, the hardness of the damping of the device can be controlled, and the comfort is improved.

[0027] The above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not limitations on the embodiments of the utility model. For ordinary skilled in the art, on the basis of the above description, other different forms of changes or variations can be made, here, all the embodiments cannot be exhausted, any obvious changes or variations derived from the technical scheme of the utility model still belong to the protection scope of the utility model.

Claims

1. A double cylinder built-in pneumatic hydraulic shock absorber made of aluminum comprising an oil reservoir cylinder (1), characterized in that: The middle part of the oil storage cylinder (1) is slidably installed with a valve rod (6), the inside of the oil storage cylinder (1) is provided with an inner cavity (12), the inner wall of the oil storage cylinder (1) is provided with a flow hole (13) in communication with the inner cavity (12), the lower end of the valve rod (6) is fixedly installed with a first valve plate (10) and a second valve plate (11), the first valve plate (10) and the second valve plate (11) are slidably installed in the oil storage cylinder (1), and the oil storage cylinder (1) is provided with an adjusting assembly (5).

2. The aluminum double tube built-in gas hydraulic shock absorber according to claim 1, characterized by: The upper end of the valve rod (6) is fixedly installed with a top disc (7), and the upper surface of the top disc (7) is installed with an upper mounting ring (8).

3. The aluminum double tube built-in gas hydraulic shock absorber according to claim 2, characterized by: The lower end surface of the oil storage cylinder (1) is fixedly installed with a base (2), the lower surface of the base (2) is installed with a lower mounting ring (3), and the spring (9) is fixedly installed between the top disc (7) and the base (2).

4. The aluminum double tube built-in gas hydraulic shock absorber according to claim 1, characterized by: The middle part of the valve rod (6) is installed with a rubber elastic sheet (4).

5. The aluminum double tube built-in gas hydraulic shock absorber according to claim 1, characterized by: The adjusting assembly (5) comprises a screw sleeve (501) and a screw thread (505), the screw sleeve (501) is sleeved in the middle part of the oil storage cylinder (1), the screw thread (505) is arranged on the peripheral surface of the oil storage cylinder (1), and the screw sleeve (501) is engagedly connected with the screw thread (505).

6. The aluminum double tube built-in gas hydraulic shock absorber according to claim 5, characterized by: The upper surface of the screw sleeve (501) is fixedly installed with a connecting rod (502), and the top end of the connecting rod (502) is fixedly installed with a mounting disc (506).

7. The aluminum double tube built-in gas hydraulic shock absorber according to claim 6, characterized by: The lower surface of the mounting disc (506) is provided with a sliding groove (507), the sliding groove (507) is slidably installed with a sliding block (508), the lower surface of the sliding block (508) is fixedly installed with a sliding rod (503), the sliding rod (503) is movably arranged in the inner cavity (12), the top end of the sliding rod (503) is fixedly installed with a piston (504), and the piston (504) is slidably installed in the inner cavity (12).

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