Multi-section damping shock absorber piston

Abstract

The utility model relates to the technical field of pistons, in particular to a multi-section damping shock absorber piston which comprises a piston body, the piston body comprises a piston head and a piston rod, a clamping base is fixedly installed on the piston head, a pressing plate is fixedly connected to the piston rod, and a first spring is welded between the pressing plate and the clamping base. A movable plate movably abutting against the pressure applying plate is arranged in the clamping base in a sliding and sleeved mode. The clamping base is arranged on the piston head, the pressing plate extending into the clamping base is arranged on the piston rod, when the pressing plate slides in the clamping base, the first spring is stressed, when the pressing plate moves, the movable plate is extruded, the second spring is stressed, the movable plate drives the guide rod to extrude the third spring, and the service life of the piston body is effectively prolonged; the fixing plate is arranged on the clamping base, the connecting rod is dragged through movement of the guide rod, the connecting rod exerts pressure on the reinforcing rod when deflecting, then the clamping base is protected, and the operation efficiency of the piston body is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pistons, in particular to a multi-stage damping shock absorber piston. Background Art

[0002] The automobile piston is used to withstand gas pressure and allow the connecting rod to drive the crankshaft to rotate through the piston pin. The top of the piston is also a part of the combustion chamber.

[0003] During the operation of the piston, the piston rod directly applies pressure to the piston end. When the piston end is in direct contact with the piston rod, the piston end fails to disperse the force received, causing the piston end to vibrate when the piston rod applies pressure to the piston end. If the piston rod suddenly applies pressure, the connection between the piston rod and the piston end is very likely to break, which not only affects the service life of the piston, but also the efficiency of the piston operation. Utility Model Content

[0004] The utility model aims to solve the problem in the prior art that the piston rod directly contacts the piston end directly, resulting in easy breakage at the connection, and proposes a multi-stage damping shock absorber piston.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A multi-stage damping shock absorber piston comprises a piston body, and the piston body comprises a piston head and a piston rod, a socket is fixedly mounted on the piston head, a pressure plate is fixedly connected to the piston rod, and a first spring is welded between the pressure plate and the socket, a sliding sleeve in the socket is provided with a movable plate which is movably opposed to the pressure plate, and a second spring is welded between the movable plate and the socket, a guide rod is fixedly mounted on the movable plate, and a third spring is welded between the guide rod and the piston head.

[0007] Preferably, the pressure plate is fixedly connected to the upper end of the piston rod extending into the holder, and the movable plate and the pressure plate are horizontally arranged from top to bottom.

[0008] Preferably, the base is provided with a guide groove for guiding the movable plate, the piston rod is fixedly provided with a movable disk extending into the base, a sealing gasket is provided on the movable disk, and the base is provided with a sealing ring matching the piston rod.

[0009] Preferably, the movable plate and the pressure plate are disc-shaped structures, and corresponding rubber pads are provided on the pressure plate and the movable plate.

[0010] Preferably, evenly distributed fixing plates are fixedly installed in the holder, and a reinforcing rod is slidably sleeved on the fixing plate, a reinforcing plate corresponding to the holder is fixedly installed on the reinforcing rod, and a connecting rod is connected between the reinforcing rod and the guide rod.

[0011] Preferably, the reinforcement plate is an arc-shaped structure adapted to the holder, and a silicone pad is provided on the reinforcement plate to flexibly abut against the holder, and both ends of the connecting rod are respectively connected to the reinforcement rod and the guide rod pin.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] 1. The utility model provides a seat on the piston head and a pressure plate extending into the seat on the piston rod. When the pressure plate slides in the seat, spring one is stressed, and the pressure plate squeezes the moving plate when moving. Spring two is stressed, and the moving plate drives the guide rod to squeeze spring three, so that the piston rod cannot directly impact the piston head when moving, thereby effectively improving the service life of the piston body.

[0014] 2. The utility model sets a fixing plate on the base and pulls the connecting rod by moving on the guide rod. When the connecting rod is deflected, pressure is applied to the reinforcement rod. The reinforcement rod drives the reinforcement plate to extend outward. The reinforcement plate drives the silicone pad to move against the inner wall of the base, thereby protecting the base and effectively improving the efficiency of the operation of the piston body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a multi-stage damping shock absorber piston proposed by the utility model;

[0016] Figure 2 A cross-sectional view of a multi-stage damping shock absorber piston proposed in the utility model;

[0017] Figure 3 The utility model is a top sectional view of a multi-stage damping shock absorber piston.

[0018] In the figure: 1. Piston head; 2. Piston rod; 3. Clamp; 4. Pressure plate; 5. Spring 1; 6. Moving plate; 7. Sealing ring; 8. Guide groove; 9. Moving plate; 10. Rubber pad; 11. Spring 2; 12. Guide rod; 13. Spring 3; 14. Fixed plate; 15. Reinforcement rod; 16. Reinforcement plate; 17. Silicone pad; 18. Connecting rod. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-Figure 3 , a multi-stage damping shock absorber piston, comprising a piston body, wherein the piston body comprises a piston head 1 and a piston rod 2;

[0021] A holder 3 is fixedly mounted on the piston head 1, a pressure plate 4 is fixedly connected to the piston rod 2, and a spring 5 is welded between the pressure plate 4 and the holder 3. A movable plate 9 that is movably opposed to the pressure plate 4 is provided in the sliding sleeve of the holder 3. By arranging the pressure plate 4 on the piston rod 2, when the piston rod 2 moves, the pressure plate 4 is driven to slide in the holder 3, and the spring 5 is stressed, so that the moving piston rod 2 can be buffered.

[0022] The pressure plate 4 is fixedly connected to the upper end of the piston rod 2 extending into the card seat 3, and the movable plate 9 and the pressure plate 4 are horizontally arranged from top to bottom. The card seat 3 is provided with a guide groove 8 for guiding the movable plate 9. The piston rod 2 is fixedly mounted with a movable disk 6 extending into the card seat 3, and the movable disk 6 is provided with a sealing gasket. The guide groove 8 guides the movable plate 9 so that the movable plate 9 can smoothly pull the guide rod 12 when moving. When the piston rod 2 is subjected to force, it drives the pressure plate 4 to slide in the card seat 3. The pressure plate 4 can squeeze the movable plate 9 after being subjected to force, and a rubber pad 10 is provided between the pressure plate 4 and the movable plate 9 to prevent the pressure plate 4 from excessively impacting the movable plate 9 when moving.

[0023] The base 3 is provided with a sealing ring 7 that matches the piston rod 2, and a spring 2 11 is welded between the moving plate 9 and the base 3, a guide rod 12 is fixedly mounted on the moving plate 9, and a spring 3 13 is welded between the guide rod 12 and the piston head 1, the moving plate 9 and the pressure plate 4 are disc-shaped structures, and corresponding rubber pads 10 are provided on the pressure plate 4 and the moving plate 9;

[0024] When the piston rod 2 is subjected to force, it drives the pressure plate 4 to press the movable plate 9. When the movable plate 9 slides in the guide groove 8, it drives the guide rod 12 to gradually approach the piston rod 2. When the guide rod 12 moves, it squeezes the spring 3 13, so that the pressure of the piston rod 2 can be buffered by the seat 3, thereby improving the service life of the piston body.

[0025] The holder 3 is fixed with evenly distributed fixing plates 14, and the fixing plates 14 are slidably sleeved with reinforcement rods 15, and the reinforcement rods 15 are fixed with reinforcement plates 16 corresponding to the holder 3, and a connecting rod 18 is connected between the reinforcement rods 15 and the guide rods 12;

[0026] The reinforcement plate 16 is an arc-shaped structure adapted to the base 3, and a silicone pad 17 is provided on the reinforcement plate 16 to resist the base 3 movably. The two ends of the connecting rod 18 are respectively connected to the reinforcing rod 15 and the guide rod 12 with pins. By arranging a fixing plate 14 on the base 3, when the guide rod 12 moves, it drives the connecting rod 18 to be pulled, and the connecting rod 18 drives the reinforcement rod 15 to be pulled when moving. The reinforcement rod 15 drives the reinforcement plate 16 and the silicone pad 17 to extend to the base 3, thereby supporting and protecting the base 3.

[0027] The functional principle of the utility model can be explained through the following operation modes:

[0028] When the piston body is in operation;

[0029] The piston rod 2 applies pressure to the pressure plate 4, and the piston rod 2 drives the movable plate 6 and the sealing gasket to slide in the holder 3, and the spring 1 5 is stressed. When the pressure plate 4 moves, it moves against the movable plate 9. When the movable plate 9 slides in the guide groove 8, it squeezes the guide rod 12, and the spring 2 11 is stressed.

[0030] The guide rod 12 squeezes the spring 3 13 when it moves, and at the same time, the guide rod 12 pulls the connecting rod 18. The position difference generated by the connecting rod 18 when it moves can press the reinforcing rod 15. When the reinforcing rod 15 slides on the fixed plate 14, it resists the reinforcing plate 16. The rubber pad 10 on the reinforcing plate 16 can resist the card seat 3.

[0031] The piston rod 2 pulls the piston head 1 through the seat 3 when moving.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multi-stage damping shock absorber piston, comprising a piston body, wherein the piston body comprises a piston head (1) and a piston rod (2), characterized in that: A holder (3) is fixedly mounted on the piston head (1), a pressure plate (4) is fixedly connected to the piston rod (2), and a spring one (5) is welded between the pressure plate (4) and the holder (3), a sliding sleeve is provided inside the holder (3) with a movable plate (9) that is movably opposed to the pressure plate (4), and a spring two (11) is welded between the movable plate (9) and the holder (3), a guide rod (12) is fixedly mounted on the movable plate (9), and a spring three (13) is welded between the guide rod (12) and the piston head (1).

2. A multi-stage damping shock absorber piston according to claim 1, characterized in that: The pressure plate (4) is fixedly connected to the upper end of the piston rod (2) extending into the holder (3), and the movable plate (9) and the pressure plate (4) are arranged horizontally from top to bottom.

3. A multi-stage damping shock absorber piston according to claim 1, characterized in that: The base (3) is provided with a guide groove (8) for guiding the movable plate (9), the piston rod (2) is fixedly mounted with a movable disk (6) extending into the base (3), and a sealing gasket is provided on the movable disk (6), and the base (3) is provided with a sealing ring (7) matching the piston rod (2).

4. A multi-stage damping shock absorber piston according to claim 1, characterized in that: The movable plate (9) and the pressure plate (4) are disc-shaped structures, and corresponding rubber pads (10) are provided on the pressure plate (4) and the movable plate (9).

5. The multi-stage damping shock absorber piston according to claim 1, characterized in that: The base (3) is fixedly provided with evenly distributed fixing plates (14), and a reinforcing rod (15) is slidably sleeved on the fixing plate (14), and a reinforcing plate (16) corresponding to the base (3) is fixedly provided on the reinforcing rod (15), and a connecting rod (18) is connected between the reinforcing rod (15) and the guide rod (12).

6. A multi-stage damping shock absorber piston according to claim 5, characterized in that: The reinforcing plate (16) is an arc-shaped structure adapted to the holder (3), and a silicone pad (17) is provided on the reinforcing plate (16) for movably abutting against the holder (3). The two ends of the connecting rod (18) are respectively connected to the reinforcing rod (15) and the guide rod (12) by pins.

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