Double-cylinder damper

Abstract

The double-cylinder damper comprises a cylinder body a and a cylinder body b which are connected with each other, end covers b are arranged at the two ends of the cylinder body a, a sliding rod is arranged in the cylinder body a in a penetrating mode, the sliding rod is connected with the end covers b in a sliding mode, and a piston is arranged on the section, located in the cylinder body a, of the sliding rod. The cylinder body a is fixed to a vehicle body, the connector is fixed to the handlebar, when the handlebar shakes, the sliding rod drives the piston to move leftwards in the cylinder body a, the piston extrudes a left cavity of the cylinder body a, and oil is extruded to the cylinder body b through the connecting hole a, sequentially enters an inner hole of the plunger a, the through hole and the connecting hole b and finally flows back to a right cavity of the cylinder body a, so that the shaking resistance of the handlebar is increased; and in the process, the plunger b is driven to rotate through the driving rod by rotating the screw cap, so that the distance between the plunger b and the plunger a is changed, the oil flow is adjusted, the resistance of the oil flow is adjusted, and the applicability of the oil flow adjusting device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dampers, in particular to a double-cylinder damper. Background Art

[0002] The direction damper, also known as a steering damper, is an automotive component mainly used to control the stability of a vehicle during high-speed driving. The function of the steering damper is to prevent the front of the vehicle from rotating widely in a short time, thereby reducing the swing of the vehicle during high-speed driving. When a driver encounters an uneven road surface during high-speed driving, the steering damper can attenuate the vibration sensation, improve the stability of the vehicle, and make it easier for the vehicle to pass through curves; the existing dampers are not convenient to adjust and have poor applicability. Summary of the Utility Model

[0003] The purpose of the utility model is to solve the shortcomings existing in the prior art, and a double-cylinder damper is proposed.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A double-cylinder damper includes a cylinder a and a cylinder b connected to each other. Both ends of the cylinder a are provided with end caps b. A slide rod is penetrated through the cylinder a, and the slide rod is slidably connected to the end cap b. A piston is arranged on a section of the slide rod located inside the cylinder a. A connection head is connected to the end of the slide rod. The two ends of the cylinder a communicate with the cylinder b through a connection hole a and a connection hole b respectively. One end of the cylinder b is installed with an end cap a, and the other end is provided with a flow rate adjusting mechanism.

[0006] Preferably, the flow rate adjusting mechanism includes a plunger a threadedly connected to the inner wall of the cylinder b. A plunger b is threadedly connected inside the plunger a. A through hole communicating the plunger a and the connection hole b is provided on the plunger b. A driving structure is arranged at the outer end of the plunger b, and the other end is a conical structure.

[0007] Preferably, the driving structure includes a mounting sleeve threadedly connected to the end of the cylinder b. A driving rod is rotatably connected inside the mounting sleeve. One end of the driving rod is provided with a square opening, and the end of the plunger b is provided with a square end corresponding to the square opening. A positioning and rotating structure is arranged at the other end of the driving rod.

[0008] Preferably, the positioning and rotating structure includes a rotating cap sleeved on the end of the driving rod. A fastening screw is threadedly connected to the rotating cap, and the end of the fastening screw presses on the driving rod. A plurality of hole grooves are arranged on the side wall of the mounting sleeve. The inner wall of the hole groove is connected with a steel ball through an elastic member b. A stop groove corresponding to the steel ball is arranged on the side wall of the rotating cap.

[0009] Preferably, an installation groove is arranged inside the end cap a. A sliding plug is connected to the inner wall of the installation groove through an elastic member a.

[0010] Preferably, anti-collision rings are provided on both sides of the piston, and the anti-collision rings are sleeved on the sliding rods.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: In the present utility model, the cylinder block a is fixed to the vehicle body, and the connecting head is fixed to the handlebar. When the handlebar shakes, the sliding rod drives the piston to move leftward in the cylinder block a. The piston squeezes the left cavity of the cylinder block a, and the oil is squeezed through the connecting hole a into the cylinder block b, and then enters the inner hole of the plunger a, the through hole, and the connecting hole b in sequence, and finally flows back to the right cavity of the cylinder block a, thereby increasing the resistance to the shaking of the handlebar, reducing the amplitude of its shaking, and ensuring that the handlebar is more stable. During this process, by rotating the rotary cover, the plunger b is driven to rotate through the driving rod to change the distance between the plunger b and the plunger a, so as to adjust the flow rate of the oil and realize the adjustment of its resistance, and improve its applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more specifically and intuitively illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art.

[0013] Figure 1 is a schematic structural diagram proposed by the present utility model;

[0014] Figure 2 is Figure 1 the internal structural schematic diagram of;

[0015] Figure 3 is Figure 2 the enlarged view of the structure of part A in;

[0016] Figure 4 is Figure 2 the enlarged view of the structure of part B in.

[0017] In the figure: cylinder block a1, cylinder block b2, sliding rod 3, connecting head 4, piston 5, anti-collision ring 6, end cover a7, elastic member a8, sliding plug 9, connecting hole a10, end cover b11, connecting hole b12, plunger a13, through hole 14, plunger b15, square end 16, driving rod 17, mounting sleeve 18, elastic member b19, steel ball 20, rotary cover 21, fastening screw 22. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0019] Refer to Figures 1-4, A double-cylinder damper, comprising a cylinder block a1 and a cylinder block b2 connected to each other. Both ends of the cylinder block a1 are provided with end caps b11. A slide rod 3 is disposed through the cylinder block a1, and the slide rod 3 is slidably connected to the end caps b11. A piston 5 is provided on a section of the slide rod 3 located inside the cylinder block a1. A connector 4 is connected to the end of the slide rod 3. Both ends of the cylinder block a1 communicate with the cylinder block b2 through a connection hole a10 and a connection hole b12 respectively. One end of the cylinder block b2 is provided with an end cap a7, and the other end is provided with a flow regulating mechanism.

[0020] The cylinder block a1 is fixed to the vehicle body, and the connector 4 is fixed to the handlebar. When the handlebar shakes, the slide rod 3 drives the piston 5 to move leftward inside the cylinder block a1. The piston 5 squeezes the left chamber of the cylinder block a1, presses the oil through the connection hole a10 into the cylinder block b2, and then enters the inner hole of the plunger a13, the through hole 14 and the connection hole b12 in sequence, and finally returns to the right chamber of the cylinder block a1, thereby increasing the resistance of the handlebar shaking, reducing the amplitude of its shaking, and ensuring that the handlebar is more stable. During this process, by rotating the rotary cap 21, the plunger b15 is driven to rotate by the driving rod 17 to change the distance between the plunger b15 and the plunger a13, so as to adjust the oil flow rate and realize the adjustment of its resistance, and improve its applicability.

[0021] In this embodiment, the flow regulating mechanism includes a plunger a13 threadedly connected to the inner wall of the cylinder block b2. A plunger b15 is threadedly connected inside the plunger a13. A through hole 14 communicating the plunger a13 and the connection hole b12 is provided on the plunger b15. One end of the outer part of the plunger b15 is provided with a driving structure, and the other end is a conical structure.

[0022] In this embodiment, the driving structure includes a mounting sleeve 18 threadedly connected to the end of the cylinder block b2. A driving rod 17 is rotatably connected inside the mounting sleeve 18. One end of the driving rod 17 is provided with a square opening, and the end of the plunger b15 is provided with a square end 16 corresponding to the square opening. The other end of the driving rod 17 is provided with a positioning and rotating structure.

[0023] In this embodiment, the positioning and rotating structure includes a rotary cap 21 sleeved on the end of the driving rod 17. A fastening screw 22 is threadedly connected to the rotary cap 21, and the end of the fastening screw 22 presses on the driving rod 17. A plurality of holes and grooves are provided on the side wall of the mounting sleeve 18. The inner wall of the holes and grooves is connected with a steel ball 20 through an elastic member b19. The side wall of the rotary cap 21 is provided with a stop groove corresponding to the steel ball 20. The rotary cap 21 is stopped by driving the steel ball 20 to cooperate with the stop groove through the elastic member b19 to prevent it from rotating randomly and improve its stability.

[0024] In this embodiment, an installation groove is provided inside the end cap a7. The inner wall of the installation groove is connected with a sliding plug 9 through an elastic member a8. When the oil pressure in the cylinder block b2 is too high, the elastic member a8 is compressed to play a buffering role.

[0025] In this embodiment, anti-collision rings 6 are provided on both sides of the piston 5, and the anti-collision rings 6 are sleeved on the sliding rods 3.

[0026] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A double-cylinder damper, comprising a cylinder body a (1) and a cylinder body b (2) connected to each other, end covers b (11) being provided at both ends of the cylinder body a (1), a slide rod (3) being provided through the cylinder body a (1), the slide rod (3) being slidably connected to the end cover b (11), a piston (5) being provided at a section of the slide rod (3) located inside the cylinder body a (1), and a connector (4) being connected to the end of the slide rod (3), characterized in that: The two ends of the cylinder body a (1) are connected to the cylinder body b (2) through the connecting hole a (10) and the connecting hole b (12) respectively. One end of the cylinder body b (2) is provided with an end cover a (7), and the other end is provided with a flow regulating mechanism.

2. A twin-cylinder damper according to claim 1, characterized in that: The flow regulating mechanism comprises a plunger a (13) threadedly connected to the inner wall of a cylinder body b (2); the plunger a (13) is internally threadedly connected to a plunger b (15); a through hole (14) connecting the plunger a (13) and the connecting hole b (12) is provided on the plunger b (15); a driving structure is provided at one end of the outside of the plunger b (15), and a conical structure is provided at the other end.

3. A twin-cylinder damper according to claim 2, characterized in that: The driving structure comprises a mounting sleeve (18) threadedly connected to the end of the cylinder body b (2), a driving rod (17) rotatably connected in the mounting sleeve (18), one end of the driving rod (17) being provided with a square opening, the end of the plunger b (15) being provided with a square end (16) corresponding to the square opening, and the other end of the driving rod (17) being provided with a positioning rotation structure.

4. A twin-cylinder damper according to claim 3, characterized in that: The positioning rotation structure comprises a rotary cover (21) sleeved on the end of the driving rod (17), a fastening screw (22) being threadedly connected to the rotary cover (21), the end of the fastening screw (22) being pressed on the driving rod (17), a side wall of the mounting sleeve (18) being provided with a plurality of holes and grooves, the inner walls of the holes and grooves being connected to steel balls (20) via elastic members b (19), and a stop groove corresponding to the steel balls (20) being provided on the side wall of the rotary cover (21).

5. A twin-cylinder damper according to claim 4, characterized in that: The inner end of the end cover a (7) is provided with a mounting groove, and the inner wall of the mounting groove is connected to a sliding plug (9) via an elastic member a (8).

6. A twin-cylinder damper according to claim 5, characterized in that: Anti-collision rings (6) are provided on both sides of the piston (5), and the anti-collision rings (6) are sleeved on the slide rod (3).

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