Dual-media automotive shock absorber

Abstract

The dual-medium automotive shock absorber is mainly composed of an air cylinder 1, a pressure cylinder 7, and a sealing ring groove 10 on the lower outer side of the pressure cylinder 7 and a steel sealing ring 13 in the sealing ring groove 10-1. The air cylinder 1 contains conventional air 5 as the elastic material of the dual-medium automotive shock absorber of this invention. The pressure cylinder 7 contains lubricating oil 14 to lubricate the steel sealing ring 13 on the lower outer side of the pressure cylinder 7, making it wear-resistant and durable. This new type of automotive shock absorber is used in passenger cars, providing comfort and low noise. It has a service life several times longer than spring-type shock absorbers and is a novel type of automotive shock absorber.

Description

Technical Field

[0001] This invention is a dual-medium automotive shock absorber, a novel type of automotive shock absorber that uses air as the elastic material for automobiles (passenger vehicles). Background Technology

[0002] Currently, most shock absorbers used in passenger vehicles employ alloy steel rods rolled into a spiral shape to form the damping material, known as spring-type shock absorbers. Their lifespan is short; most cars need to be replaced after only around 100,000 kilometers. Their lack of durability and short replacement cycle is a problem that urgently needs to be addressed. Summary of the Invention

[0003] The purpose of this invention is to provide a novel dual-medium automotive shock absorber that uses air as the elastic material to solve the problem of short service life of automotive shock absorbers, and its service life is several times longer than that of spring-type shock absorbers.

[0004] The design scheme is as follows: The dual-medium automotive shock absorber is assembled and installed in the shock absorber positions of the front and rear axles of the vehicle. When the vehicle is running, the pressure cylinder mounted on the upper part of the air cylinder, along with the steel sealing ring installed on its lower outer side, moves downwards to compress the air in the air cylinder, causing it to descend and absorb downward pressure. Simultaneously, the compressed air generates a rebound force, pushing the pressure cylinder upwards and causing it to return to its original position. This reciprocating downward and upward rebound process within the air cylinder during vehicle movement creates an air compression automotive shock absorber using air as the elastic material. Because the steel sealing ring on the lower outer side of the pressure cylinder provides a good seal, it is more durable when lubricated. The lubricating oil flows through the oil outlet at the bottom of the pressure cylinder to lubricate the outer steel sealing ring. Since the pressure cylinder contains lubricating oil, this type of automotive shock absorber is more wear-resistant and durable than spring-type shock absorbers, extending its replacement cycle several times over. This solves the durability problem of automotive shock absorbers. Air forms an elastic material when compressed; the upper pressure cylinder contains lubricating oil that lubricates the steel sealing ring, making it wear-resistant and durable. This lubricating oil is another important medium material in this shock absorber; hence the name "dual-medium automotive shock absorber".

[0005] The assembly structure and connection method of this invention are as follows: The assembly structure mainly consists of a lower air cylinder and a pressure cylinder inserted into the upper part of the air cylinder as primary components; its auxiliary component is a threaded plug plate at the lower part of the air cylinder, consisting of a bolt rod connected by a screw hole in the middle of the plug plate and two nuts, nut 1 and nut 2, at the lower part, which serves to connect and fix the lower part of the air cylinder to the vehicle axle; the second auxiliary component of the air cylinder is an iron plate ring installed at the upper part of the air cylinder, used to connect and fix the upper part of the air cylinder to specific parts of the vehicle body, ensuring the air cylinder is vertically installed on the axle. This auxiliary component is... A strip of iron is wrapped around the upper part of the air cylinder to form a ring shape. A screw hole is drilled at the end of the iron ring. Two sections slightly longer than the ring are left at both ends of the iron ring. Two screw holes are drilled in the shorter sections, which are used to fix the ring iron strip to the air cylinder with screws. A screw hole is drilled in the longer section, which is used to connect and fix it to specific parts on the car with screws, so that the air cylinder is installed vertically on each axle. A screw hole is also drilled in the lower part of the air cylinder for adjusting the amount of air in the air cylinder. A screw plug is also provided. Switching the screw plug controls the amount of air in the air cylinder.

[0006] Additionally, the lower outer side of the pressure cylinder has two grooves for installing an external support steel sealing ring. This steel sealing ring is approximately 2 mm thick and 2 mm wide. After being machined into a ring shape, an opening is cut open to form the external support steel sealing ring. This ring has external elasticity, and its function is to seal using this elasticity. During installation, it is pre-placed in the two grooves on the lower outer side of the pressure cylinder. The lower part of the pressure cylinder is sealed with a threaded plug, and the upper part of the pressure cylinder is sealed with a nut. The pressure cylinder contains lubricating oil for lubricating the steel sealing ring. There is a hole drilled in the upper part of the pressure cylinder, which is the oil inlet or oil filling hole, used to put in lubricating oil. There is a hole drilled in the lower middle part of the pressure cylinder for the lubricating oil to flow out, called the oil outlet.

[0007] Shock absorber assembly and connection method: First, the upper pressure cylinder is inserted into the lower air cylinder by insertion; second, the air cylinder and the lower part of the pressure cylinder are sealed by a threaded plug; third, the lower part of the air cylinder is connected to the axle by bolts; fourth, the upper part of the air cylinder is connected to specific parts of the vehicle body by bolts through the screw holes on the iron plate ring.

[0008] When the dual-medium automotive shock absorber of this invention is installed on a vehicle and is in operation, it is first connected and fixed to the axle using the bolt rod and nuts 1 and 2 in the threaded plug hole at the bottom of the air cylinder. Then, the iron plate ring on the upper part of the air cylinder is fixed to the upper part of the air cylinder using the fixing screw. Finally, it is connected to the specific accessories of the vehicle body using the connecting screw and installed vertically on the axle. After being connected and fixed to the vehicle, lubricating oil is introduced into the pressure cylinder through the oil inlet. During operation, the weight of the vehicle body and the passengers acts on the upper stress points of the pressure cylinder (the four shock absorbers' upper nuts form four stress points), causing the pressure cylinder to move downwards. This pushes the pressure cylinder downwards into the air cylinder during its floating stroke. After moving downwards for 50 mm (the total designed stroke is 100 mm), the air in the air cylinder, under pressure, creates a rebound force. This downward movement and upward rebound form an air-type automotive shock absorber. The spring installed in the air cylinder, after the pressure cylinder moves downwards for 50 mm, also rebounds upwards along with the air, ensuring the pressure cylinder rebounds upwards. This spring is an auxiliary component, a return spring. This constitutes a new type of automotive accessory.

[0009] When installing the screw plug plate at the bottom of the air cylinder and the lower screw plug at the bottom of the pressure cylinder, apply thread oil to ensure a seal. After tightening the screw threads, use anaerobic adhesive to bond and fix the screw threads to the main body to ensure that they do not turn upside down and to ensure safe use. Also, apply thread oil to the air adjusting screw during installation to ensure a seal.

[0010] Dual-media automotive shock absorbers are durable and wear-resistant because their air cylinder, pressure cylinder, and steel sealing ring are all made of steel. After replacing the steel sealing ring, the air cylinder and pressure cylinder can be reused several times. This externally supported steel sealing ring is a linear seal, which is currently the most effective sealing method. This dual-media automotive shock absorber makes passenger car users more comfortable and noise-free. This scientific and simple combination design should be considered the second generation of automotive shock absorbers. It is currently the best-sealing and most durable automotive shock absorber, with great promotional value. It should be promoted in the automotive industry in various countries around the world and will have significant economic benefits. Attached Figure Description

[0011] Figure 1 This is a schematic cross-sectional view of the main body of a dual-medium automotive shock absorber assembly.

[0012] Figure 2 This is a schematic diagram illustrating the specifications of a dual-medium automotive shock absorber.

[0013] 1. An air cylinder, whose function is to seal air within it;

[0014] 2. The plug plate is used to seal the lower end of the air cylinder;

[0015] 2-1. Bolt rod, its function is to connect to the automobile axle;

[0016] 2-2. Nut, its function is to position the screw 2-1;

[0017] 2-3. Nuts are used to tighten and fix screw 2-1 in the axle setting position;

[0018] 3. The air adjusting screw is used to regulate the amount of air in the air cylinder during shock absorber assembly; it also keeps the pressure cylinder in a set position within the air cylinder, using standard M8 bolts.

[0019] 3-1. The function of the air adjusting screw hole is to adjust the amount of air in the air cylinder in conjunction with the air adjusting screw 3;

[0020] 4. The iron plate ring is used to install the air cylinder on top. It's made of iron strips forming a ring that surrounds the outside of the air cylinder. A locking hole is drilled at the end of the iron strip, and a screw and nut are used to tighten it and connect it to the air cylinder, fixing it as one unit. Then, a screw hole is drilled in the long section of the iron plate at the end of the ring, and a bolt and nut are used to connect and fix it to a specific part of the vehicle body, ensuring the air cylinder is vertically installed on the vehicle. Figure 2 The design method marked 4 in the accessory specification diagram.

[0021] 4-1. The function of the cylinder screw is to use bolts and nuts to clamp the air cylinder together with the screw holes made at both ends of the iron strip at the top of the air cylinder.

[0022] 4-2. Connecting screw: Its function is to connect the air cylinder to the vehicle body by drilling a hole in the slightly longer plate at the other end of the iron plate ring, so that the air cylinder can be installed vertically on the vehicle.

[0023] 5. Air, specifically regular air, is subjected to pressure and elasticity during its downward stroke within the air cylinder. In this shock absorber, it is an elastic material.

[0024] 6. The spring's function is to generate a rebound force when the pressure cylinder moves downwards, so that the pressure cylinder 7 returns to its original position. The return spring is an auxiliary component.

[0025] 7. Pressure cylinder: Its function is to generate vertical floating force when the car is running. This force acts on the nut 9 at the top of the pressure cylinder and moves downward. The pressure cylinder floats downward in the air cylinder to reduce the vibration force. Its vertical floating in the air cylinder is the main component of the shock absorber.

[0026] 8. The lower threaded plug is used to seal the lower end face of the pressure cylinder;

[0027] 9. The nut is used to seal the upper end of the pressure cylinder and to withstand the downward pressure transmitted from the vehicle during operation;

[0028] 10. Sealing ring groove, its function is to install steel sealing ring 13, which is located on the lower outer side of the pressure cylinder;

[0029] 10-1 Sealing ring groove, its function is to install steel sealing ring 13, which is located on the lower outer side of the pressure cylinder;

[0030] 11. Oil inlet hole, its function is to inject lubricating oil into pressure cylinder 7 through this hole;

[0031] 12. Oil outlet hole. Its function is to allow lubricating oil 14 to flow out automatically through this hole and into the gap between the lower part of the pressure cylinder 7 and the upper part of the air cylinder 1 to lubricate the steel sealing ring 13.

[0032] 13. The steel sealing ring is used to seal the gap between the lower part of the pressure cylinder 7 and the upper part of the air cylinder 1. During manufacturing, after forming a ring, a slit is cut into the ring with a saw. The elasticity of the steel generates an external supporting force, causing the ring to form an externally supporting shape, thus achieving the sealing function. This type of sealing ring is installed in the sealing ring grooves 10 and 10-1 respectively. The ring is approximately 2 mm thick and 2 mm wide.

[0033] 14. Lubricating oil, its function is to lubricate the steel sealing ring. 13 Detailed Implementation

[0034] The embodiments of the present invention will be described below with reference to the accompanying drawings:

[0035] As shown in the figure: Figure 1 The novel shock absorber shown in the schematic diagram has an air cylinder 1 at the bottom and a pressure cylinder 7 inserted into the air cylinder 1 at the top, forming the main body of the novel shock absorber. The plug plate 2 of the air cylinder 1 is located at the bottom of the air cylinder 1, sealing the lower end face of the air cylinder 1. It is connected to the automobile axle connector by the bolt rod 2-1, and then fixed to the position of the automobile axle by rotating the nut 2-2 from top to bottom. Then, the bolt is tightened from bottom to top by the nut 2-3 to fix the lower part of the air cylinder 1 to the automobile axle. At the upper part of the air cylinder 1, the iron plate ring 4 is connected to the air cylinder 1 by tightening the nut on the fixed cylinder bolt 4-1 with the screw hole on the ring. Then, the connecting bolt 4-2 is connected to the corresponding position of the automobile body connector by connecting the upper part of the air cylinder 1 to the automobile body connector via the iron plate ring 4.

[0036] Before the pressure cylinder 7 is inserted into the air cylinder 1, the spring 6 is first placed into the air cylinder 1, and then the pressure cylinder 7 is inserted into the air cylinder 1. Then the steel sealing ring 13 is placed into the steel sealing groove 10 and 10-1 on the lower outer side of the pressure cylinder 7. Then the lubricating oil 14 is put into the pressure cylinder 7 through the oil inlet hole 11. The lubricating oil 14 enters the gap between the lower part of the pressure cylinder 7 and the upper part of the air cylinder 1 through the oil outlet hole 12 at the lower part of the pressure cylinder 7 and flows downward to lubricate the steel sealing ring 13.

[0037] During operation, when the lower end of the pressure cylinder 7 moves downward to the limited stroke (the downward movement is limited to about 50 mm, and the total stroke is set to 100 mm), it presses against the spring 6. The return spring 6 generates an upward elastic force, which, together with the upward elastic force generated by the compressed air 5 in the air cylinder 1, rebounds upward, pushing the pressure cylinder 7 upward and returning it to its original position. This downward and rebound operation allows the shock absorber to work normally.

[0038] This combination installation places the dual-medium automotive shock absorber in the corresponding position on the vehicle, allowing the shock absorber to perform its normal function when the vehicle is running.

Claims

1. A dual-medium automotive shock absorber for passenger cars, comprising an air cylinder (1), a plug plate (2), a bolt rod (2-1), a nut (2-2), a nut (2-3), an air adjusting screw (3), an air adjusting screw hole (3-1), an iron plate ring (4), a cylinder fixing screw (4-1), a connecting screw (4-2), air (5), and a spring (6) to form the air cylinder (1); and a pressure cylinder (7) comprising a pressure cylinder (7), a lower plug (8), a nut (9), a sealing ring groove (10), a sealing ring groove (10-1), an oil inlet (11), an oil outlet (12), a steel sealing ring (13), and lubricating oil (14); the pressure cylinder (7) is inserted into the air cylinder (1) from above to form the dual-medium automotive shock absorber.

2. The dual-medium automotive shock absorber according to claim 1, characterized in that: An air cylinder (1) and a pressure cylinder (7) are installed by inserting the pressure cylinder (7) into the air cylinder (1) from above, forming a dual-medium automotive shock absorber; the lower outer side of the pressure cylinder (7) is provided with a sealing ring groove (10) and a sealing ring groove (10-1), and steel sealing rings (13) are installed in these two sealing ring grooves respectively, forming a sealing structure of the steel sealing rings (13) for the air (5) in the air cylinder (1); the steel sealing rings (13) are made durable by the lubricating effect of the lubricating oil (14) on the steel sealing rings (13).

3. The dual-medium automotive shock absorber according to claim 1, characterized in that: The steel sealing ring (13) is a circular ring made of high-quality steel with a thickness of about 2 mm and a width of about 2 mm. It is made by cutting a slit between the rings with a saw. The elastic seal formed by the external support force generated by this steel ring forms a seal in the gap between the lower outer side of the pressure cylinder (7) and the upper part of the air cylinder (1), effectively sealing the air (5) in the air cylinder (1). When the car is running, the dual-medium car shock absorber installed on the car vibrates up and down. In this way, the air (5) in the air cylinder (1) forms an elastic material, causing the pressure cylinder (7) to float up and down to play a shock absorption role. This steel sealing ring (13) is a key component of dual-medium automotive shock absorbers.

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