Front wheel vertical shaft bidirectional damping buffer

Abstract

The utility model provides a front wheel vertical shaft two -way damping buffer, relates to buffer technical field, including buffer outer tube, the left side of buffer outer tube is provided with first connecting shaft, the right end fixedly connected with fixed base of first connecting shaft, the right side mounting of fixed base has damping piston, the outside of damping piston is sleeved with return spring, the right side of damping piston is provided with damping sleeve, the right end of damping sleeve is provided with damping buffer assembly, through the sliding connection of guide sleeve and damping outer tube inner wall limit radial displacement, cooperate and prevent component excessive displacement limit block, guarantee buffering stability and prolong life, with the damping force of buffer spring elasticity and piston pipe, damping cylinder cooperation forms multistage buffer, high -efficient absorption vibration energy, the rotary connection of second connecting axle and damping cylinder can adapt to angle change, promote adaptability, and piston pipe adopts high -strength material quality such as alloy steel, ensure that the structure is reliable when transmitting big force.

Description

Technical Field

[0001] This utility model relates to the field of damper technology, and in particular to a bidirectional damping damper for a front wheel vertical axle. Background Technology

[0002] In existing mechanical damping devices, the damping requirement of the front wheel vertical axle has always been a key issue. Traditional dampers often have limitations in structural design. For example, they cannot achieve efficient multi-stage damping when dealing with complex and variable vibration conditions. Some dampers rely on a single elastic element or a simple damping structure to achieve the damping function. Their damping effect varies greatly under vibrations of different frequencies and intensities. Moreover, during long-term use, due to the unstable connection between components or improper material selection, problems such as excessive component displacement and severe wear can easily occur, leading to a decrease in damping performance and a shortened service life. Some dampers also show a lack of flexibility when adapting to different angle changes.

[0003] A search revealed that the document with publication number "CN221569278U" mentions that "this utility model relates to the field of hydraulic damper technology and discloses a bidirectional damping hydraulic damper, including a main body, a first return spring fixedly connected to the inner bottom of the main body, a cylinder slidably connected inside the first sealing ring, a second piston fixedly connected to the outer surface of the cylinder, a second sealing ring fixedly connected to the bottom of the second piston, a second oil leakage hole opened inside the second piston, a second return spring fixedly connected to the inner bottom of the cylinder, a first piston slidably connected to the upper inside of the cylinder, and the bottom of the first piston..." The first piston is fixedly connected to a first sealing ring, and a first oil leakage hole is opened inside the first piston. By setting the first piston, cylinder, second piston, main body and other components to work together, the oil can be squeezed from two directions to generate damping force, thereby playing a buffering role. This achieves a bidirectional damping effect and solves the shortcomings of the buffer that only generates damping and forms buffering in one direction.

[0004] However, existing damping buffers have a simple buffer structure, making it difficult to achieve multi-level buffering. They are not effective at absorbing vibrations of different frequencies and intensities. The component connections are not robust enough, and excessive displacement is likely to occur during long-term use, affecting buffer stability and service life. At the same time, their ability to adapt to angle changes is limited, resulting in insufficient adaptability to different working scenarios.

[0005] Therefore, we provide a front wheel vertical axle bidirectional damping buffer to solve the above problems. Utility Model Content

[0006] To overcome the above deficiencies, this utility model provides a front wheel vertical axle bidirectional damping buffer, which aims to solve the problems mentioned above.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A front wheel vertical axle bidirectional damping buffer includes a buffer outer cylinder. A first connecting shaft is provided on the left side of the buffer outer cylinder. A fixed base is fixedly connected to the right end of the first connecting shaft. A damping piston is installed on the right side of the fixed base. A return spring is sleeved on the outer side of the damping piston. A damping sleeve is provided on the right side of the damping piston. A damping buffer assembly is provided at the right end of the damping sleeve. The damping buffer assembly includes a damping outer cylinder provided at the right end of the damping sleeve. A buffer spring is provided on the surface of the damping outer cylinder.

[0009] As a further description of the above technical solution:

[0010] The left end of the return spring abuts against the surface of the damping piston. The return spring is sleeved on the surface of the damping sleeve. The return spring is a cylindrical helical spring. The inner wall of the damping sleeve is provided with an oil passage. The damping sleeve is made of high-strength aluminum alloy.

[0011] As a further description of the above technical solution:

[0012] A guide sleeve is provided on the inner side of the damping outer cylinder, and the guide sleeve is slidably connected to the inner wall of the damping outer cylinder.

[0013] As a further description of the above technical solution:

[0014] A limiting block is provided on the left side of the guide sleeve. The limiting block is fixedly connected to the damping outer cylinder and has a ring structure.

[0015] As a further description of the above technical solution:

[0016] A piston tube is provided on the right side of the guide sleeve. One end of the piston tube passes through the buffer spring and extends to the outside of the damping outer cylinder. The piston tube is made of alloy steel.

[0017] As a further description of the above technical solution:

[0018] A damping sleeve is fitted onto the outer side of the right end of the piston tube, and the left end of the damping sleeve abuts against the buffer spring.

[0019] As a further description of the above technical solution:

[0020] A second connecting shaft is provided at one end of the damping cylinder. The second connecting shaft is rotatably connected to the damping cylinder. The diameter of the second connecting shaft is the same as the diameter of the first connecting shaft.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] By setting up a damping buffer assembly, radial displacement is limited by the sliding connection between the guide sleeve and the inner wall of the damping outer cylinder. In conjunction with the limit block, excessive displacement of the components is prevented, ensuring buffering stability and extending service life. The damping force generated by the buffer spring force in conjunction with the piston tube and damping cylinder forms a multi-stage buffer, which efficiently absorbs vibration energy. The rotational connection between the second connecting shaft and the damping cylinder can adapt to angle changes and improve adaptability. The piston tube is made of high-strength materials such as alloy steel to ensure structural reliability when transmitting large forces.

[0023] By setting up a damping piston, a return spring, and a damping sleeve, vibrations of different frequencies can be quickly attenuated, resulting in more comprehensive vibration reduction. After the vibration is reduced, the return spring can release elastic potential energy to push the damping piston back to its original position, achieving automatic cyclic use. The cylindrical helical structure of the return spring and the high-strength aluminum alloy material of the damping sleeve ensure uniform force distribution and smooth oil flow, enhancing durability and stability. It is suitable for high-frequency vibration scenarios and can extend the life of related components. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the overall internal structure of this utility model;

[0026] Figure 3 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0027] Figure 4 This is a schematic diagram of the damping buffer assembly structure of this utility model.

[0028] The following are the labels in the diagram: 1. Buffer outer cylinder; 2. First connecting shaft; 3. Fixed base; 4. Damping piston; 5. Return spring; 6. Damping sleeve; 7. Damping buffer assembly; 701. Damping outer cylinder; 702. Buffer spring; 703. Guide sleeve; 704. Limiting block; 705. Piston tube; 706. Damping cylinder; 707. Second connecting shaft. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-4 As shown, this utility model provides a technical solution: a front wheel vertical axle bidirectional damping buffer, including a buffer outer cylinder 1, a first connecting shaft 2 is provided on the left side of the buffer outer cylinder 1, a fixed base 3 is fixedly connected to the right end of the first connecting shaft 2, a damping piston 4 is installed on the right side of the fixed base 3, a return spring 5 is sleeved on the outer side of the damping piston 4, a damping sleeve 6 is provided on the right side of the damping piston 4, a damping buffer assembly 7 is provided at the right end of the damping sleeve 6, the damping buffer assembly 7 includes a damping outer cylinder 701 provided at the right end of the damping sleeve 6, and a buffer spring 702 is provided on the surface of the damping outer cylinder 701.

[0031] Furthermore, a limiting block 704 is provided on the left side of the guide sleeve 703. The limiting block 704 is fixedly connected to the damping outer cylinder 701. The limiting block 704 has a ring structure. When the guide sleeve 703 moves to the left with the internal components, it gradually approaches the limiting block 704. When the left side of the guide sleeve 703 contacts the limiting block 704, the limiting block 704 blocks it from continuing to move to the left, thus preventing the guide sleeve 703 from excessively displacing and causing misalignment and damage to the internal components of the damping outer cylinder 701.

[0032] Furthermore, a guide sleeve 703 is provided on the inner side of the damping outer cylinder 701. The guide sleeve 703 is slidably connected to the inner wall of the damping outer cylinder 701. When the force is transmitted to the damping outer cylinder 701, the internal components begin to move. The guide sleeve 703 slides synchronously along the inner wall of the damping outer cylinder 701 with the moving components, restricting the radial displacement of the components and ensuring that the internal movement of the damping buffer assembly 7 always proceeds axially, thus ensuring the stability of the buffering process.

[0033] Furthermore, a piston tube 705 is provided on the right side of the guide sleeve 703. One end of the piston tube 705 passes through the buffer spring 702 and extends to the outside of the damping outer cylinder 701. The piston tube 705 is made of alloy steel. The buffering force in the damping outer cylinder 701 is transmitted to the left side of the piston tube 705 through the guide sleeve 703. The piston tube 705 moves to the right along the axial direction, and its surface squeezes the buffer spring 702. At the same time, it passes through the buffer spring 702 and extends to the outside of the damping outer cylinder 701. The high strength characteristics of the alloy steel ensure that the piston tube 705 does not bend or break during the force transmission process.

[0034] Furthermore, a damping cylinder 706 is sleeved on the outer side of the right end of the piston tube 705. The left end of the damping cylinder 706 abuts against the buffer spring 702. The buffer spring 702 is compressed under the push of the piston tube 705, and the elastic force at its right end acts on the left end of the damping cylinder 706. The damping cylinder 706 moves to the right with the piston tube 705, and at the same time generates damping force through its cooperation with the piston tube 705, further absorbing vibration energy. The force is transmitted to the second connecting shaft 707 through the damping cylinder 706.

[0035] Furthermore, a second connecting shaft 707 is provided at one end of the damping cylinder 706. The second connecting shaft 707 and the damping cylinder 706 are rotatably connected. The diameter of the second connecting shaft 707 is the same as the diameter of the first connecting shaft 2. The damping cylinder 706 transmits the buffered force to the second connecting shaft 707. When the front wheel axle rotates, the second connecting shaft 707 rotates relative to the damping cylinder 706 to adapt to the angle change. The second connecting shaft 707 transmits the processed force to the external frame, completing the entire buffer force output process.

[0036] Furthermore, the left end of the return spring 5 abuts against the surface of the damping piston 4, and the return spring 5 is sleeved on the surface of the damping sleeve 6. The return spring 5 is a cylindrical helical spring, and the inner wall of the damping sleeve 6 is provided with an oil passage. The damping sleeve 6 is made of high-strength aluminum alloy. When the damping piston 4 moves, its surface presses against the left end of the return spring 5, causing the return spring 5 to be compressed or stretched along the surface of the damping sleeve 6. At the same time, the damping piston 4 slides inside the damping sleeve 6, and the oil flows through the inner oil passage, generating a damping force. This force, together with the elastic force of the return spring 5, buffers the vibration. After the vibration weakens, the elastic potential energy of the return spring 5 is released, pushing the damping piston 4 to reset, and the oil flows back to the initial position.

[0037] Working Principle: During use, external vibrations or forces are transmitted to the fixed base 3 through the first connecting shaft 2, which in turn pushes the damping piston 4 to move. The damping piston 4 squeezes the left end of the return spring 5, causing the return spring 5 to be compressed or stretched along the surface of the damping sleeve 6. At the same time, the damping piston 4 slides inside the damping sleeve 6, and the oil flows through the inner oil passage to generate damping force, which, together with the elastic force of the return spring 5, begins to buffer the vibration. The force is further transmitted to the damping outer cylinder 701, driving the internal components to move. The guide sleeve 703 slides along the inner wall of the damping outer cylinder 701 with the moving components, limiting radial displacement. Under the force transmitted by the guide sleeve 703, the piston tube 705 moves axially to the right, squeezing the buffer spring 702. At the same time, it extends through the buffer spring 702 to the outside of the damping outer cylinder 701. The elastic force of 2, together with the damping force generated by the piston tube 705 and the damping cylinder 706, absorbs energy. When the guide sleeve 703 moves to the left with the internal components, it gradually approaches the limiting block 704. When the two come into contact, the limiting block 704 blocks the guide sleeve 703 from continuing to move to the left, preventing excessive displacement of the components and damage. The damping cylinder 706 transmits the buffered force to the second connecting shaft 707. When the front wheel axle rotates, the second connecting shaft 707 rotates relative to the damping cylinder 706 to adapt to the angle change, and finally transmits the processed force to the external frame. After the vibration is weakened, the return spring 5 releases its elastic potential energy, pushes the damping piston 4 to reset, and the oil flows back to the initial position. The device returns to its initial state and completes one buffer cycle. This completes the use process of a front wheel axle bidirectional damping buffer.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A front wheel vertical axle bidirectional damping buffer, comprising a buffer outer cylinder (1), characterized in that: A first connecting shaft (2) is provided on the left side of the outer cylinder (1) of the buffer. A fixed base (3) is fixedly connected to the right end of the first connecting shaft (2). A damping piston (4) is installed on the right side of the fixed base (3). A return spring (5) is sleeved on the outside of the damping piston (4). A damping sleeve (6) is provided on the right side of the damping piston (4). A damping buffer assembly (7) is provided at the right end of the damping sleeve (6). The damping buffer assembly (7) includes a damping outer cylinder (701) provided at the right end of the damping sleeve (6). A buffer spring (702) is provided on the surface of the damping outer cylinder (701).

2. The front wheel vertical axle bidirectional damping buffer according to claim 1, characterized in that, The left end of the return spring (5) abuts against the surface of the damping piston (4). The return spring (5) is sleeved on the surface of the damping sleeve (6). The return spring (5) is a cylindrical helical spring. The inner wall of the damping sleeve (6) is provided with an oil passage. The material of the damping sleeve (6) is high-strength aluminum alloy.

3. The front wheel vertical axle bidirectional damping buffer according to claim 1, characterized in that, A guide sleeve (703) is provided on the inner side of the damping outer cylinder (701), and the guide sleeve (703) is slidably connected to the inner wall of the damping outer cylinder (701).

4. A front wheel vertical axle bidirectional damping buffer according to claim 3, characterized in that, A limiting block (704) is provided on the left side of the guide sleeve (703). The limiting block (704) is fixedly connected to the damping outer cylinder (701). The limiting block (704) has a ring structure.

5. A front wheel vertical axle bidirectional damping buffer according to claim 3, characterized in that, A piston tube (705) is provided on the right side of the guide sleeve (703). One end of the piston tube (705) passes through the buffer spring (702) and extends to the outside of the damping outer cylinder (701). The piston tube (705) is made of alloy steel.

6. A front wheel vertical axle bidirectional damping buffer according to claim 5, characterized in that, A damping cylinder (706) is sleeved on the outer side of the right end of the piston tube (705), and the left end of the damping cylinder (706) abuts against the buffer spring (702).

7. A front wheel vertical axle bidirectional damping buffer according to claim 6, characterized in that, One end of the damping cylinder (706) is provided with a second connecting shaft (707), and the second connecting shaft (707) and the damping cylinder (706) are rotatably connected. The diameter of the second connecting shaft (707) is the same as the diameter of the first connecting shaft (2).

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