External double-cylinder electric control shock absorber

Abstract

The utility model relates to the technical field of automobile accessories, and discloses an external double-cylinder electric control shock absorber. The external double-cylinder electric control shock absorber comprises a cylinder body, an inner cylinder, an electric control assembly, a compression spring and a structural plate, an inner cylinder is fixedly arranged at the top in the cylinder body, an electric control assembly is arranged at the top in the inner cylinder, the electric control assembly comprises a sleeve fixedly arranged at the top in the inner cylinder, a metal sleeve is fixedly arranged in the sleeve, and the outer side, located in the sleeve, of the metal sleeve is sleeved with an electromagnetic coil; a piston is fixed to the bottom end, located in the barrel, of the piston rod through a bolt, and a bottom valve is fixed to the bottom in the inner barrel through a bolt. By controlling the current supplied to the electromagnetic coil and adjusting the electromagnetic attraction force of the attraction piston rod, the purpose of adjusting resistance is achieved, and compared with existing electromagnetic valve control and electromagnetic force control, the resistance adjusting device is low in manufacturing cost, high in bearing capacity and suitable for wide application and popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive supplies, in particular to an external double-cylinder electronically controlled shock absorber. Background Technique

[0002] The double-cylinder shock absorber is a shock-absorbing device commonly used in the automotive suspension system. Its working principle is to reduce and control the bumps and impacts of the vehicle during driving by using two cylinder structures inside. It is a device that uses electronic control technology to automatically adjust the stiffness and damping force of the suspension system.

[0003] The existing electronically controlled shock absorbers are mainly divided into solenoid valve control and electromagnetic force control. Electromagnetic force control has a high cost, a large maintenance cost, and a small application range. While solenoid valve control has poor load-bearing performance and weak anti-roll ability, resulting in limited comfort. Therefore, we propose an external double-cylinder electronically controlled shock absorber. Content of the Utility Model

[0004] In view of the deficiencies of the prior art, the utility model provides an external double-cylinder electronically controlled shock absorber, which solves the problems raised in the background technique.

[0005] The utility model provides the following technical scheme: an external double-cylinder electronically controlled shock absorber, including a cylinder body, an inner cylinder, an electronic control component, a compression spring, and a structural plate;

[0006] An inner cylinder is fixedly arranged at the top inside the cylinder body. An electronic control component is arranged at the top inside the inner cylinder. The electronic control component includes a sleeve fixedly arranged at the top inside the inner cylinder. A metal sleeve is fixedly arranged inside the sleeve. An electromagnetic coil is sleeved outside the metal sleeve inside the sleeve. A piston rod is sleeved at the top of the cylinder body. A piston is fixedly connected to the bottom end of the piston rod inside the cylinder body through a bolt. A bottom valve is fixedly connected to the bottom inside the inner cylinder through a bolt.

[0007] Further, a first oil seal is arranged at the bottom end of the sleeve, and a second oil seal is arranged at the top end of the cylinder body outside the piston rod.

[0008] Further, the top end of the piston rod is connected to the structural plate through a threaded groove, and a compression spring is sleeved outside the piston rod between the structural plate and the cylinder body.

[0009] Further, an oil storage cavity is formed between the cylinder body and the inner cylinder.

[0010] Further, the sleeve is made of fiberglass material, and the metal sleeve is made of metal iron material.

[0011] Further, a lower suspension ring is welded to the bottom end of the cylinder body, and an upper suspension ring is welded to the top end of the structural plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] After the electromagnetic coil is energized, the metal sleeve generates magnetism, which can adsorb the piston rod, increasing the resistance of the piston rod. By controlling the current supplied to the electromagnetic coil, the electromagnetic suction force for adsorbing the piston rod is adjusted, thereby achieving the purpose of adjusting the resistance.

[0014] When the vehicle jolts, the top of the piston rod moves up and down. When the piston rod moves down, the structural plate presses down to compress the spring for vibration damping. While the piston rod moves up and down, the hydraulic oil is moved by the piston within the inner cylinder, and vibration damping is achieved through the piston, bottom valve, and hydraulic oil within the inner cylinder.

[0015] This external double-cylinder electronically controlled shock absorber adjusts the electromagnetic suction force for adsorbing the piston rod by controlling the current supplied to the electromagnetic coil, thereby achieving the purpose of adjusting the resistance. Compared with the existing solenoid valve control and electromagnetic force control, it has a lower cost and stronger load-bearing capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 is a sectional view of the cylinder of the present invention;

[0018] Figure 3 is a schematic diagram of the structure of the electronic control component of the present invention;

[0019] In the figure: 1, cylinder; 2, inner cylinder; 3, electronic control component; 301, sleeve; 302, metal sleeve; 303, electromagnetic coil; 4, piston rod; 5, piston; 6, bottom valve; 7, first oil seal; 8, second oil seal; 9, compression spring; 10, structural plate; 11, upper suspension ring; 12, lower suspension ring; 13, oil storage chamber. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-3 , in the embodiments of the present invention, it includes a cylinder 1, an inner cylinder 2, an electronic control component 3, a compression spring 9, and a structural plate 10;

[0022] At the top inside the cylinder body 1, an inner cylinder 2 is fixedly arranged. At the top inside the inner cylinder 2, an electric control component 3 is arranged. The electric control component 3 includes a sleeve 301 fixedly arranged at the top inside the inner cylinder 2. Inside the sleeve 301, a metal sleeve 302 is fixedly arranged. An electromagnetic coil 303 is sleeved outside the metal sleeve 302 inside the sleeve 301. A piston rod 4 is sleeved at the top of the cylinder body 1. At the bottom end of the piston rod 4 inside the cylinder body 1, a piston 5 is fixed by bolts. At the bottom inside the inner cylinder 2, a bottom valve 6 is fixed by bolts.

[0023] Wherein, a first oil seal 7 is arranged at the bottom end of the sleeve 301. At the top of the cylinder body 1 outside the piston rod 4, a second oil seal 8 is arranged. The first oil seal 7 seals between the piston rod 4 and the sleeve 301, and the second oil seal 8 seals between the piston rod 4 and the cylinder body 1.

[0024] Wherein, the top end of the piston rod 4 is connected with a structural plate 10 through a threaded groove. An outer side of the piston rod 4 between the structural plate 10 and the cylinder body 1 is sleeved with a compression spring 9. When the piston rod 4 moves downward to compress the compression spring 9 through the structural plate 10, the vibration damping capacity of the device can be improved.

[0025] Wherein, an oil storage cavity 13 is formed between the cylinder body 1 and the inner cylinder 2.

[0026] Wherein, the sleeve 301 is made of fiberglass material, and the metal sleeve 302 is made of metal iron material. The sleeve 301 made of fiberglass material has high strength, good insulation and anti-corrosion capabilities.

[0027] Wherein, a lower suspension ring 12 is welded at the bottom end of the cylinder body 1, and an upper suspension ring 11 is welded at the top end of the structural plate 10. The settings of the upper suspension ring 11 and the lower suspension ring 12 facilitate the installation and fixation of the device.

[0028] The working principle of the utility model is as follows: The device is fixed on the vehicle suspension through the upper suspension ring 11 and the lower suspension ring 12. When the vehicle bumps, the top of the piston rod 4 moves up and down. When the piston rod 4 moves downward, the structural plate 10 presses down the compression spring 9 for vibration damping. While the piston rod 4 moves up and down, hydraulic oil is moved inside the inner cylinder 2 through the piston 5, and vibration damping is carried out through the piston 5, the bottom valve 6 and the hydraulic oil inside the inner cylinder 2. The electromagnetic coil 303 is connected with an external control device by using a power cord. After the electromagnetic coil 303 is powered on, the metal sleeve 302 generates magnetism, which can adsorb the piston rod 4 and give additional resistance to the piston rod 4. By controlling the current supplied to the electromagnetic coil 303, the electromagnetic suction force for adsorbing the piston rod 4 is adjusted, so as to achieve the purpose of adjusting the resistance. The setting of the first oil seal 7 can prevent the hydraulic oil inside the inner cylinder 2 from entering the sleeve 301.

[0029] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.

Claims

1. An external double-tube electronically controlled shock absorber, comprising a tube body (1), an inner tube (2), an electronically controlled component (3), a compression spring (9) and a structural plate (10); Features: An inner cylinder (2) is fixedly arranged at the top of the cylinder body (1), and an electric control component (3) is arranged at the top of the inner cylinder (2). The electric control component (3) comprises a sleeve (301) fixedly arranged at the top of the inner cylinder (2), a metal sleeve (302) is fixedly arranged inside the sleeve (301), and an electromagnetic coil (303) is sleeved on the outer side of the metal sleeve (302) located inside the sleeve (301), a piston rod (4) is sleeved on the top of the cylinder body (1), and a piston (5) is fixedly fixedly arranged at the bottom of the piston rod (4) located inside the cylinder body (1) by bolts, and a bottom valve (6) is fixedly fixedly arranged at the bottom of the inner cylinder (2) by bolts.

2. The external twin-tube electronically controlled shock absorber according to claim 1 is characterized in that: A first oil seal (7) is provided at the bottom end of the sleeve (301), and a second oil seal (8) is provided at the top end of the cylinder body (1) located outside the piston rod (4).

3. The external twin-tube electronically controlled shock absorber according to claim 1 is characterized in that: The top end of the piston rod (4) is connected to a structural plate (10) via a threaded groove, and a compression spring (9) is sleeved on the outer side of the piston rod (4) located between the structural plate (10) and the cylinder (1).

4. The external twin-tube electronically controlled shock absorber according to claim 1 is characterized in that: An oil storage chamber (13) is formed between the cylinder (1) and the inner cylinder (2).

5. The external twin-tube electronically controlled shock absorber according to claim 1 is characterized in that: The sleeve (301) is made of glass fiber material, and the metal sleeve (302) is made of metal iron material.

6. The external twin-tube electronically controlled shock absorber according to claim 1 is characterized in that: A lower lifting ring (12) is welded to the bottom end of the cylinder (1), and an upper lifting ring (11) is welded to the top end of the structural plate (10).

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