Adjustable damping piece for automobile

Abstract

The utility model belongs to the technical field of automobile damping, and particularly relates to an adjustable damping part for an automobile, which comprises a damping cylinder and a liquid storage cylinder, the damping cylinder is communicated with the liquid storage cylinder through a flow channel, an ejector pin is arranged at one end, facing the liquid storage cylinder, in the flow channel, and the ejector pin extends outwards to the outer side of the liquid storage cylinder. Telescopic rods are connected to the outer sides of the ejector pins; according to the device, the ejector pin stretches into or breaks away from the interior of the flow channel, the flow speed of hydraulic oil in the flow channel can be changed according to the size of the channel diameter of the hydraulic oil flowing through the flow channel, and the flow speed of the hydraulic oil in the flow channel is changed through the change of the flow speed of the hydraulic oil; the speed of converting vibration impact force into heat energy can be changed, then the damping effect of the damping piece is changed, the spiral flow guide groove is formed in the flow channel, the length of the flowing path of hydraulic oil in the flow channel can be increased, then the kinetic energy of vibration is better converted into heat energy when the hydraulic oil flows in the flow channel, and damping is better conducted.

Description

Technical Field

[0001] This invention belongs to the field of automotive shock absorption technology, specifically relating to an adjustable shock absorber for automobiles. Background Technology

[0002] As a core component of a vehicle's suspension system, the performance of a shock absorber directly affects driving stability and ride comfort. Traditional shock absorbers mostly generate damping through hydraulic or pneumatic methods, but such structures often lack dynamic adjustment capabilities and are difficult to adapt to complex and changing driving conditions.

[0003] For example, Chinese Patent Publication No. CN 213117253 U discloses an adjustable damping shock absorber for automobiles, which includes a shock absorber; the shock absorber has a built-in piston, a buffer rod is fixed to the middle of the piston top, the buffer rod passes through the top of the shock absorber, a fixed spring plate is provided on the top of the shock absorber, a spring is fixed to the top of the fixed spring plate, the end of the spring is connected to the bottom of the turntable, and the top of the outer wall of the buffer rod is provided with a threaded wall; this utility model changes the damping value of the shock absorber by adjusting the elastic deformation of the spring.

[0004] As described in the prior art of the aforementioned patent, although the damping value of the damper can be changed by altering the elastic deformation of the spring, the deformation of the spring can only store energy and cannot convert vibration and impact forces. The vibration can be converted by using hydraulic oil flowing through the damping hole to convert the kinetic energy of the vibration into heat energy for damping. However, the diameter of the damping hole in this device is not easy to change, so the damping effect cannot be adjusted without changing it. Utility Model Content

[0005] The purpose of this invention is to provide an adjustable shock absorber for automobiles, which changes the speed of hydraulic oil flow through the flow channel by changing the inner diameter of the flow channel, thereby changing the damping effect.

[0006] The specific technical solution adopted in this utility model is as follows:

[0007] An adjustable shock absorber for automobiles includes a shock absorber cylinder and a reservoir. The shock absorber cylinder and the reservoir are connected by a flow channel. A pin is provided at one end of the flow channel facing the reservoir. The pin extends outward to the outside of the reservoir. A telescopic rod is connected to the outside of the pin. A piston is slidably disposed inside the shock absorber cylinder. A shock absorber connecting rod is installed at the top of the piston.

[0008] In a preferred embodiment, the top of the liquid storage cylinder is provided with a liquid injection port, and a control valve is installed on the liquid injection port.

[0009] In a preferred embodiment, the inner wall of the flow channel is provided with a spiral guide groove.

[0010] In a preferred embodiment, the end of the ejector pin near the flow channel has a tapered structure, and the maximum diameter of the ejector pin is slightly smaller than the inner diameter of the flow channel.

[0011] In a preferred embodiment, a spring is provided on the shock-absorbing link, with one end of the spring pressing against the outer side of the top of the shock-absorbing cylinder and the other end of the spring pressing against the shock-absorbing link.

[0012] In a preferred embodiment, the outer end of the telescopic rod is fixedly connected to the liquid storage cylinder by a bracket, and the outer end of the ejector pin is connected to a connecting piece, which is slidably connected to the slide rod.

[0013] The technical effects achieved by this utility model are as follows:

[0014] This utility model can adjust the diameter of the hydraulic oil channel by inserting or removing a pin into the channel, thereby changing the flow rate of the hydraulic oil within the channel. By changing the flow rate of the hydraulic oil, the speed at which vibration and impact force is converted into heat energy can be altered, thus changing the damping effect of the shock absorber.

[0015] This invention incorporates a spiral guide groove within the flow channel, which increases the path length of the hydraulic oil within the channel. This allows the hydraulic oil to better convert the kinetic energy of vibrations into heat energy as it flows through the channel, thus improving vibration damping. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this practical tool;

[0017] Figure 2 This is a schematic diagram of a practical half-section structure;

[0018] Figure 3 This is a magnified structural schematic diagram of the cross-section of the connection between the shock absorber and the liquid storage tank in this practical application.

[0019] The attached diagram lists the components represented by each number as follows:

[0020] 1. Shock absorber; 2. Liquid reservoir; 3. Flow channel; 4. Ejector pin; 5. Telescopic rod; 11. Piston; 12. Shock absorber linkage; 13. Connector 1; 14. Spring; 15. Connector 2; 21. Injection port; 22. Control valve; 41. Bracket; 42. Slide rod; 43. Connecting plate. Detailed Implementation

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of this utility model. However, this utility model may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of this utility model. The phrase "in a preferred embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments.

[0024] Secondly, this utility model is described in detail with reference to the schematic diagrams. When detailing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0025] Please see the appendix Figure 1 and Figure 2 As shown, this utility model provides an adjustable shock absorber for automobiles, including a shock absorber cylinder 1 and a reservoir cylinder 2. The shock absorber cylinder 1 and the reservoir cylinder 2 are connected by a flow channel 3. A pin 4 is provided at one end of the flow channel 3 facing the reservoir cylinder 2. The pin 4 extends outward to the outside of the reservoir cylinder 2. A telescopic rod 5 is connected to the outside of the pin 4. A piston 11 is slidably arranged inside the shock absorber cylinder 1. A shock absorber connecting rod 12 is installed at the top of the piston 11.

[0026] When using shock absorbers for vibration reduction, the components are connected to the parts requiring vibration reduction via connector 13 and to the support base via connector 2 15. When the car is moving, the components vibrate, and the vibration impact force drives the movement of the shock absorber linkage 12. The shock absorber linkage 12 drives the piston 11 to move inside the shock absorber cylinder 1, thereby changing the volume of the hydraulic oil storage chamber inside the shock absorber cylinder 1. Through the change in the volume of the hydraulic oil storage chamber inside the shock absorber cylinder 1, the hydraulic oil can flow through the flow channel 3 to the reservoir 2 or from the reservoir 2 to the shock absorber cylinder 1. The hydraulic oil rubs against its inner wall in the flow channel 3, thereby converting the kinetic energy generated by the vibration into heat energy, achieving the effect of vibration reduction.

[0027] Preferably, the extension or retraction of the telescopic rod 5 can cause the ejector pin 4 to extend into or retract into the flow channel 3, thereby changing the diameter of the hydraulic oil flowing through the flow channel 3 and thus changing the flow rate of the hydraulic oil in the flow channel 3. By changing the flow rate of the hydraulic oil, the speed at which the vibration and impact force is converted into heat energy can be changed, thereby changing the damping effect of the shock absorber.

[0028] Please see Figure 2 As shown, the top of the liquid storage cylinder 2 is provided with a liquid injection port 21, and a control valve 22 is installed on the liquid injection port 21;

[0029] In this embodiment, the amount of hydraulic oil in the reservoir 2 can be changed by using the injection port 21 provided in the reservoir 2, which facilitates the flow of hydraulic oil between the reservoir 2 and the shock absorber 1. The opening and closing of the injection port 21 can be controlled by the control valve 22.

[0030] Please see Figure 3 As shown, a spiral guide groove is provided on the inner wall of the flow channel 3;

[0031] In this embodiment, a spiral guide groove is provided in the flow channel 3, which can increase the path length of the hydraulic oil in the flow channel 3, thereby better converting the kinetic energy of vibration into heat energy when the hydraulic oil flows in the flow channel 3, and better damping the vibration.

[0032] The end of the ejector pin 4 near the flow channel 3 has a tapered structure, and the maximum diameter of the ejector pin 4 is slightly smaller than the inner diameter of the flow channel 3;

[0033] Preferably, the end of the ejector pin 4 near the flow channel 3 is set as a conical structure, which can reduce the impact force generated by the hydraulic oil flowing through the ejector pin 4. The maximum diameter of the ejector pin 4 is set to be slightly smaller than the inner diameter of the flow channel 3, so that when the ejector pin 4 is fully inserted into the flow channel 3, the hydraulic oil can also flow through the gap between the two due to the diameter difference. Moreover, at this time, the damping effect of the shock absorber is maximized.

[0034] A spring 14 is provided on the shock-absorbing link 12. One end of the spring 14 rests on the outer side of the top of the shock-absorbing cylinder 1, and the other end of the spring 14 rests on the shock-absorbing link 12.

[0035] Spring 14 can absorb the impact of vibrations, thus playing a damping role and making the driving experience better.

[0036] The outer end of the telescopic rod 5 is fixedly connected to the liquid storage cylinder 2 via the bracket 41, and the outer end of the ejector pin 4 is connected to the connecting piece 43, which is slidably connected to the slide rod 42.

[0037] The telescopic rod 5 is fixed to the liquid storage cylinder 2 by connecting it to the bracket 41. When the ejector pin 4 extends and retracts inside the liquid storage cylinder 2, it will drive the connecting piece 43 to move along the slide rod 42. Due to the connection between the connecting piece 43 and the slide rod 42, the stability of the ejector pin 4 moving inside the liquid storage cylinder 2 can be improved.

[0038] The working principle of this utility model is as follows: When using shock absorbers for vibration reduction, the components are connected to the parts requiring vibration reduction via connector 13 and to the support base via connector 2. When the car is moving, the components vibrate, and the vibration impact force drives the movement of the shock absorber linkage 12. The shock absorber linkage 12 drives the piston 11 to move inside the shock absorber cylinder 1, thereby changing the volume of the hydraulic oil storage chamber inside the shock absorber cylinder 1. Through the change in the volume of the hydraulic oil storage chamber inside the shock absorber cylinder 1, the hydraulic oil can flow through the flow channel 3 to the reservoir 2 or from the reservoir 2 to the shock absorber cylinder 1. The hydraulic oil rubs against its inner wall in the flow channel 3, thereby converting the kinetic energy generated by the vibration into heat energy, achieving the effect of vibration reduction.

[0039] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the art.

Claims

1. An automotive adjustable shock absorber characterized by: Including shock cylinder (1) and liquid storage cylinder (2), shock cylinder (1) and liquid storage cylinder (2) are communicated by flow channel (3), the one end of flow channel (3) is provided with thimble (4) to liquid storage cylinder (2), thimble (4) extends to the outside of liquid storage cylinder (2), the outside of thimble (4) is connected with telescopic rod (5); The inside of shock cylinder (1) is slidably provided with a piston (11), the top end of the piston (11) is provided with a shock absorbing connecting rod (12).

2. The adjustable shock absorber for a vehicle as set forth in claim 1, wherein: The top end of the liquid storage cylinder (2) is provided with a liquid injection port (21), and the liquid injection port (21) is provided with a control valve (22).

3. The adjustable shock absorber of claim 1, wherein: The inner wall of the flow channel (3) is provided with a spiral flow guide groove.

4. The adjustable shock absorber of claim 1, wherein: The end of the thimble (4) close to the flow channel (3) is a conical structure, and the maximum diameter of the thimble (4) is slightly smaller than the inner diameter of the flow channel (3).

5. The adjustable shock absorber of claim 1, wherein: The shock absorbing connecting rod (12) is provided with a spring (14), one end of the spring (14) is on the top end of the shock cylinder (1), the other end of the spring (14) is on the shock absorbing connecting rod (12).

6. The adjustable shock absorber of claim 1, wherein: The outside end of the telescopic rod (5) is fixedly connected to the liquid storage cylinder (2) through a support (41), the outside end of the thimble (4) is connected with a connecting piece (43), and the connecting piece (43) is slidably connected to a sliding rod (42).

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