Air suspension damping device of intelligent driving vehicle

Abstract

The invention discloses an air suspension damping device of an intelligent driving vehicle, which comprises an air bag which is a telescopic rubber product and can be controlled to expand, retract and shrink to recover through inflation and deflation; the mounting butt-joint jacking piece is fixed to the upper end of the air bag in a sealed mode through a bolt and a fastening ring and used for mounting and positioning; the shock absorber structure is sealed and fixed at the lower end of the air bag through a fastening ring, and the upper end of the output shaft is in threaded connection with the mounting butt-joint ejection piece; through the arrangement of the shock absorber structure, after the air bag is damaged, the basic shock absorption effect can be maintained through airflow, the situation that a vehicle loses shock absorption after the air bag is damaged is avoided, maintenance liquid can be sprayed into the air bag through the spraying nozzle by means of inflation air pressure, and meanwhile the air guide effect of an air hood and a rotary guide plate is matched; atomized maintenance liquid is driven to be evenly diffused and adsorbed on the surface of the inner wall of the airbag, maintenance of the interior of the airbag is achieved, aging of the interior of the airbag is slowed down, the airbag is cooled, and the influence of automobile heat conduction is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile shock absorption, and in particular to an air suspension shock absorption device for an intelligent driving vehicle. Background Art

[0002] With the development of the automotive industry, traditional suspension has limitations in terms of the balance between comfort and handling, and adaptability to different road conditions. The development of automotive intelligence, especially the advancement of intelligent driving technology, requires vehicles to have more accurate and intelligent chassis control systems. Air suspension shock absorbers can interact with the intelligent driving system to improve vehicle performance and safety, while meeting consumers' demand for intelligent experience. The development of new energy vehicles has also promoted the application of air suspension shock absorbers, which can cope with changes in the weight and center of gravity of new energy vehicles and reduce energy consumption. In addition, the development of materials and manufacturing technology and the maturity of electronic control technology have improved the performance and reduced the cost of air suspension shock absorbers, and can be used in more models. In short, the application of air suspension shock absorbers in intelligent driving vehicles is the result of the joint promotion of many factors.

[0003] However, the air suspension shock absorbers used in conventional new energy vehicles will inevitably be affected by various factors of the external environment and the vehicle itself after long-term use in the process of frequently coping with the changes in the weight and center of gravity of new energy vehicles. These factors include extreme weather conditions, frequent vibrations and impacts, and daily wear and tear. Over time, these influences will cause the air suspension shock absorbers to age, crack, and even break. Once these problems occur, the performance of the air suspension shock absorbers will be significantly affected. Specifically, aging will cause the material to lose its original elasticity and toughness, making it unable to effectively absorb and buffer the impact force generated during the vehicle's driving. Cracking and damage may cause internal air pressure imbalance, further weakening its shock absorption effect, or even losing the shock absorption effect. This will not only affect ride comfort, but may also pose a potential threat to the vehicle's handling stability and safety.

[0004] To this end, an air suspension shock absorbing device for an intelligent driving vehicle is proposed. Summary of the invention

[0005] The object of the present invention is to provide an air suspension shock absorbing device for an intelligent driving vehicle to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an air suspension shock absorbing device for an intelligent driving vehicle, 1. an air suspension shock absorbing device for an intelligent driving vehicle, comprising: The airbag is a retractable rubber product that can be expanded, retracted, shrunk and restored by injecting and releasing air. Install the docking top piece, which is sealed and fixed to the upper end of the airbag by bolts and fastening rings for installation and positioning; The shock absorber structure is sealed and fixed to the lower end of the airbag through a fastening ring, and the upper end of the output shaft is threadedly connected to the mounting docking top piece, and is characterized in that: The shock absorber structure includes a central axis rod, a plurality of hydraulic pistons are fixed in a circular array along the axis at the middle and upper position of the central axis rod body, a liquid replenishing valve is arranged on the inner side of each hydraulic piston, and a spray spring is fixedly arranged at the lower end of the hydraulic piston, a pneumatic piston is integrally fixed to the upper end of the central axis rod, a lifting air inlet hole is opened inside the pneumatic piston on the circumferential side of the axis, and the central axis rod is slidably arranged at the lower part of the upper output shaft and at the middle and upper position of the interior; A through hole is provided at the axial center position inside the upper output shaft, and a lifting groove for the lifting and moving of the pressure liquid piston and a hole for the lifting and moving of the pneumatic piston are respectively provided on the path of the through hole at the positions corresponding to the pressure liquid piston and the pneumatic piston, and a connecting thread head is integrally arranged at the upper end port of the upper output shaft, wherein the lifting grooves are all overlapped and connected with the infusion liquid channel provided inside the upper output shaft, and a return spring rod and an air intake pipe are fixedly arranged at the position corresponding to the lifting air intake hole position at equal distances from each other inside the hole for lifting the pneumatic piston, and a spray nozzle for spraying maintenance liquid is arranged at the lower end of the infusion liquid channel, and an air inlet port connected to the space where the air inlet pipe is located is provided on the side surface of the upper output shaft at the position corresponding to the air inlet pipe, and an air hood with an open lower end is fixedly mounted on the rod body of the upper output shaft at the position of the air inlet, and a rotary guide plate is fixedly arranged between the air inlet in the gap between the air hood and the upper output shaft.

[0007] Preferably, the shock absorber structure also includes a shock absorber body, and a lower output shaft is slidingly limitedly provided inside the shock absorber body, a middle axis rod is integrally provided at the center position of the upper end of the lower output shaft, and the upper end of the lower output shaft is integrally provided with a plurality of extension auxiliary rods slidably inserted inside the upper output shaft for auxiliary extension around the circumference of the middle axis rod.

[0008] Preferably, a mounting hole is provided at the axial position of the pneumatic piston, and a piston core rod is provided in the mounting hole by slidingly limiting an air return spring, wherein the piston core rod consists of a piston end and a tube body, wherein a plurality of open movable connecting air ports are provided on the circumferential side surface of the tube body, and a through hole penetrating into the tube is also provided at the lower end of the tube body, and a plurality of air return ports are provided on the tube wall of the central axis rod at positions corresponding to the air return springs along an axial ring array.

[0009] Preferably, the fluid replenishment channel is opened in a ring shape around the axis along the tube diameter inside the upper output shaft, and transforms into a hole shape at the hole position where the return spring rod and the air intake pipe are located, and continues to extend downward to the upper middle position of the airbag and then penetrates the upper output shaft outward.

[0010] Preferably, the connecting thread head is threadedly connected to the inside of the mounting docking top piece, and the upper end and side of the part of the rod body that is spirally moved out of the mounting docking top piece are respectively provided with an air interface for air injection and a fluid replenishment interface for replenishing the curing agent, and the air interface is connected to the channel for raising and lowering the fluid replenishment channel, and the fluid replenishment interface is connected to the fluid replenishment channel.

[0011] Preferably, the air inlet pipe is provided with a strip-shaped square hole penetrating the rod body at the middle and lower position of the rod body.

[0012] Preferably, the spray nozzle is located at the air guide port formed by the intervals between the rotary guide plates.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention, through the arrangement of the airbag, the shock absorber body, the lower output shaft, the extension auxiliary rod, the middle shaft rod, the pneumatic piston, the lifting air inlet hole, the piston core rod, the movable connecting air port, the return air spring, the return air port, the upper output shaft, the connecting thread head, the reset spring rod, the air inlet pipe and the air inlet port, can perform the normal inflation shock absorption function while, after the airbag is cracked and damaged, while feedback is abnormal, use the air pressure force of the air compressor to continuously supply air to make the pneumatic piston push the middle shaft rod downward, and the driving bump will be fed back to the shock absorber body and the lower output shaft to act on the airflow, and the basic shock absorption effect can be maintained under the action of the continuous airflow, so that the impact of the vehicle losing shock absorption after the airbag is damaged on the vehicle can be avoided, providing the driver with sufficient optional maintenance time, and avoiding the potential threat to the vehicle control, thereby improving the driving safety; 2. The present invention arranges the airbag, the shock absorber body, the lower output shaft, the extension auxiliary rod, the middle shaft rod, the pneumatic piston, the pressure liquid piston, the fluid replenishment valve, the spray spring, the fluid replenishment channel, the lifting slot, the spray nozzle, the air hood and the rotary guide plate. When the air compressor delivers air to the airbag, the air pressure is used to push the pneumatic piston, the middle shaft rod and the pressure liquid piston downward, so that the downward pressure liquid piston presses the maintenance liquid stored in the fluid replenishment channel to be sprayed into the airbag through the spray nozzle. At the same time, the air hood cooperates with the rotary guide plate to guide the input gas in rotation, so that it drives the atomized maintenance liquid to be evenly diffused and adsorbed on the inner wall surface of the airbag, thereby realizing the maintenance of the inside of the airbag. In this way, not only the maintenance of the inside of the airbag is continuously performed and the aging of the inside of the airbag is slowed down, but also the environment inside the airbag can be cooled, thereby reducing the influence of automobile heat conduction on the existence of the airbag. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional structural view of the present invention; Figure 2 It is an overall cross-sectional view of the present invention; Figure 3 This is a structural exploded view of the shock absorber of the present invention; Figure 4is a cross-sectional view of the shock absorber structure of the present invention; Figure 5 is a cross-sectional view of the lower output shaft of the present invention; Figure 6 It is a cross-sectional view of the upper output shaft of the present invention.

[0015] In the figure: 1. Airbag; 2. Install the docking top piece; 3. Shock absorber structure; 31. Shock absorber body; 32. Lower output shaft; 321. Extended auxiliary rod; 322. Middle shaft rod; 323. Liquid pressure piston; 3231. Liquid replenishing valve; 3232. Spray spring; 324. Pneumatic piston; 3241. Lifting air inlet hole; 3242. Piston core rod; 3243. Movable connecting air port; 3244. Return air spring; 3245. Return air port; 33. Upper output shaft; 331. Connecting thread head; 332. Liquid replenishing channel; 3321. Lifting slot; 3322. Spray nozzle; 333. Reset spring rod; 334. Inlet pipe; 335. Inlet port; 336. Air hood; 3361. Rotary guide plate. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] See also Figures 1 to 6 The present invention provides a technical solution for an air suspension shock absorbing device of an intelligent driving vehicle: An air suspension shock absorbing device for an intelligent driving vehicle, comprising: The airbag 1 is a retractable rubber product, and its expansion, contraction, and recovery can be controlled by injecting and releasing air; Install the docking top piece 2, which is sealed and fixed to the upper end of the airbag 1 by bolts and a fastening ring for installation and positioning; The shock absorber structure 3 is sealed and fixed to the lower end of the airbag 1 through a fastening ring, and the upper end of the output shaft is threadedly connected to the mounting docking top member 2; The shock absorber structure 3 includes a shock absorber body 31, the internal sliding limit of the shock absorber body 31 is provided with a lower output shaft 32, the center position of the upper end of the lower output shaft 32 is integrally provided with a middle shaft rod 322, and the upper end of the lower output shaft 32 is integrally provided with a plurality of extended auxiliary rods 321 around the circumference of the middle shaft rod 322, and the upper end of the middle shaft rod 322 is integrally fixed with a pneumatic piston 324, and the axial center position of the pneumatic piston 324 and the circumference of the axial center are respectively provided with a mounting hole and a through lifting air inlet hole 3241, wherein the mounting hole extends along the axial center toward the inside of the middle shaft rod 322, and A piston core rod 3242 is provided in the mounting hole and the extension hole by means of a return air spring 3244, and the piston core rod 3242 is composed of a piston end and a tube body, wherein a plurality of open movable air ports 3243 are provided on the peripheral side of the tube body, and a through hole penetrating into the tube is also provided at the lower end of the tube body, and a plurality of return air ports 3245 are provided on the tube wall of the central axis rod 322 at positions corresponding to the return air spring 3244 along an axial annular array, and the extended auxiliary rod 321 and the central axis rod 322 are respectively slidably provided at the lower part and the middle upper part of the interior of the upper output shaft 33; A through hole is provided at the axial center position inside the upper output shaft 33, and a lifting groove 3321 for the lifting and lowering movement of the hydraulic piston 323 and a hole position for the lifting and lowering movement of the pneumatic piston 324 are respectively provided on the path of the through hole at the positions corresponding to the hydraulic piston 323 and the pneumatic piston 324, and a connecting thread head 331 is integrally arranged at the upper end portion of the upper output shaft 33, wherein the lifting groove 3321 is overlapped and connected with the infusion liquid channel 332 provided inside the upper output shaft 33, and a return spring rod 333 and an air intake pipe 334 are fixedly provided at the position corresponding to the lifting air intake hole 3241 inside the hole for lifting the pneumatic piston 324 at equidistant intervals, and the air intake pipe 334 is provided with a strip square hole that passes through the rod body at the middle and lower position of the rod body, and an air intake port 335 connected to the space where it is located is provided on the side of the upper output shaft 33 at the position corresponding to the strip square hole.

[0018] During operation, the air compressor inputs compressed gas into the upper output shaft 33, and the gas acts on the pneumatic piston 324 to move it downward. When it moves to the strip square hole of the intake pipe 334, the gas is filled into the airbag 1 through the intake pipe 334 and the rotary guide plate 3361. If the airbag 1 is cracked or damaged, the gas leaks out and the air pressure is low, and the shock absorption effect cannot be achieved. However, the air compressor continues to supply gas to make the pneumatic piston 324 continue to push the middle axis rod 322 downward, and the driving bumps are fed back to the shock absorber body 31, which pushes the lower output shaft 32 to act on the airflow to maintain the basic shock absorption effect, thereby avoiding the impact of the vehicle losing shock absorption after the airbag 1 is damaged.

[0019] In summary, through the arrangement of the airbag 1, the shock absorber body 31, the lower output shaft 32, the extension auxiliary rod 321, the middle shaft rod 322, the pneumatic piston 324, the lifting air inlet hole 3241, the piston core rod 3242, the movable connecting air port 3243, the return air spring 3244, the return air port 3245, the upper output shaft 33, the connecting thread head 331, the return spring rod 333, the air inlet pipe 334 and the air inlet port 335, while performing the normal inflation shock absorption function, the airbag 1 can be opened and closed. After the airbag 1 is cracked and damaged, the air pressure force of the continuous air supply from the air compressor is used to make the pneumatic piston 324 push the middle shaft rod 322 downward, and the driving bumps will be fed back to the shock absorber body 31 and the lower output shaft 32 to act on the airflow. Under the action of continuous airflow, the basic shock absorption effect can be maintained, which not only avoids the impact of the vehicle losing shock absorption after the airbag 1 is damaged, but also provides the driver with sufficient optional maintenance time, and avoids potential threats to vehicle control, thereby improving driving safety.

[0020] As an embodiment of the present invention, Figure 4 As shown, several hydraulic pistons 323 are fixed in an axial circular array at the middle and upper position of the central axis rod 322, each hydraulic piston 323 is provided with a through hole at the axial position, and a downward one-way open liquid replenishing valve 3231 is fixed in the through hole, and a spray spring 3232 is fixed at the lower end of the through hole.

[0021] The fluid replenishment channel 332 is opened in a ring shape around the axis along the tube diameter inside the upper output shaft 33, and is transformed into a hole shape at the hole position where the return spring rod 333 and the air intake pipe 334 are located, and continues to extend downward to the middle and upper position of the airbag 1, and then penetrates the upper output shaft 33 outward, and is provided with a spray nozzle 3322 for spraying the maintenance liquid at the port, and the connecting thread head 331 is threadedly connected to the inside of the mounting docking top piece 2, and the upper end and side of the part of the rod body that is spirally moved out of the mounting docking top piece 2 are respectively provided with an air interface for gas injection and a fluid replenishment interface for replenishing the maintenance agent, and the air interface is connected to the channel for raising and lowering the fluid replenishment channel 332, and the fluid replenishment interface is connected to the fluid replenishment channel 332.

[0022] An air hood 336 with an open lower end is fixedly mounted on the rod body of the upper output shaft 33 at the position of the air inlet 335, and a rotary guide plate 3361 for guiding air is fixedly arranged between the air inlet 335 in the gap between the air hood 336 and the upper output shaft 33, and the spray nozzle 3322 is located at the air guide port formed by the interval between the rotary guide plates 3361.

[0023] During operation, the central axis rod 322 moves downward to drive the hydraulic piston 323 to compress the spray spring 3232, and the compressed curing agent is sprayed out through the spray nozzle 3322 in atomization, and the inner wall of the airbag 1 is cured under the drive of the airflow. This process continues during driving.

[0024] In summary, through the arrangement of the airbag 1, the shock absorber body 31, the lower output shaft 32, the extension auxiliary rod 321, the middle shaft rod 322, the pneumatic piston 324, the hydraulic piston 323, the liquid replenishing valve 3231, the spray spring 3232, the liquid replenishing channel 332, the lifting slot 3321, the spray nozzle 3322, the air cover 336 and the rotary guide plate 3361, when the air compressor delivers air to the airbag 1, the air pressure is used to push the pneumatic piston 324, the middle shaft rod 322 and the hydraulic piston 323 downward, so that the downward moving The hydraulic piston 323 compresses the maintenance liquid stored in the fluid replenishment channel 332 to be sprayed into the airbag 1 through the spray nozzle 3322. At the same time, the air hood 336 cooperates with the rotary guide plate 3361 to guide the input gas in rotation, so that it drives the atomized maintenance liquid to be evenly diffused and adsorbed on the inner wall surface of the airbag 1, thereby maintaining the inside of the airbag 1. This not only continuously performs maintenance on the inside of the airbag 1 and slows down the aging of the inside of the airbag 1, but also cools the environment inside the airbag 1, reducing the impact of automobile heat conduction on the airbag 1.

[0025] Working principle: When working, first install the device at the designated location, then connect the air interface at the upper end of the connecting thread head 331 to the exhaust valve and the air compressor through the pipeline, and connect the interface for replenishing the curing agent to the liquid supply tank. After checking that the connection is stable, it can be used.During normal use, the air compressor will input compressed gas into the interior of the upper output shaft 33 through the air interface, and the input gas will continue to act on the upper surface of the pneumatic piston 324 as the air pressure increases. The damaged pneumatic piston 324 moves down along the intake pipe 334 and compresses the return spring rod 333 until the pneumatic piston 324 moves down to the bar-shaped square hole on the rod body of the intake pipe 334. At this time, the space above the upper output shaft 33 will be connected to the space below the pneumatic piston 324 through the intake pipe 334. Then the gas will quickly pass through the intake pipe 334 and enter between the rotary guide plates 3361 from the intake port 335, and be filled into the interior of the airbag 1 under the guidance of the rotary guide plates 3361. At the same time, as the pneumatic piston 324 moves downward under pressure, the middle shaft The rod 322 will move down along the upper output shaft 33 for a specified distance and move out from the inside of the upper output shaft 33, and the downward moving middle axis rod 322 will synchronously drive the hydraulic piston 323 to move downward along the lifting slot 3321 and compress the spray spring 3232. The downward moving hydraulic piston 323 will select a suitable airbag maintenance liquid material to compress the maintenance agent stored in the replenishing liquid channel 332 between the spray nozzle 3322 and the hydraulic piston 323, so that it is atomized and sprayed out through the spray nozzle 3322. The sprayed maintenance agent will be fully diffused to the surface of the airbag 1 under the guidance of the airflow guided by the rotary guide plate 3361, so as to maintain the inner wall of the airbag 1. This process will continue during driving. If the airbag 1 is cracked or damaged, the vehicle detection system will The abnormal situation of the airbag 1 is detected and fed back to the screen of the car control end. At the same time, the gas input in the above process will leak out through the crack. At this time, the air pressure inside the airbag 1 will always be at a low level and cannot achieve the original shock absorption effect. However, since the air compressor will continue to compress the gas and input it into the upper output shaft 33, the gas will continue to act on the upper end of the pneumatic piston 324. At this time, the pneumatic piston 324 will continue to push the middle shaft rod 322 downward, and the vibration and jolt during driving will be fed back to the shock absorber body 31, and then the shock absorber body 31 will push the lower output shaft 32 to act on the continuously input airflow, so as to use the continuous air pressure to maintain the basic shock absorption effect, thereby avoiding a series of influences caused by the loss of shock absorption of the vehicle after the airbag 1 is damaged. Before the car arrives at the maintenance point, sufficient fault tolerance time is provided for the car owner; under normal conditions, when the gas inside the airbag 1 needs to be discharged, the air compressor stops and the exhaust valve opens. Since the air pressure inside the airbag 1 is relatively high, the movable connecting air port 3243 will be pressed to stretch the return air spring 3244 upward along the channel of the pneumatic piston 324. When the movable connecting air port 3243 moves out of the pneumatic piston 324, the upper and lower parts of the upper output shaft 33 will be temporarily connected, and then the gas inside the airbag 1 will enter the air cover 336, and then along the air cover 336 through the air inlet port 335 to enter the space below the lifting air inlet hole 3241, and finally enter the upper part of the upper output shaft 33 through the movable connecting air port 3243, and be discharged outwardly by the exhaust valve.

[0026] It should be noted that the above-mentioned exhaust valve can be replaced by an exhaust pump of predetermined power according to demand; the air compressor is an existing equipment, and its specific structure and principle have been disclosed, and only a brief description is made in this application.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air suspension shock absorbing device for an intelligent driving vehicle, comprising: The airbag (1) is a retractable rubber product, and its expansion, contraction, and recovery are controlled by injecting and releasing air; Installing a docking top piece (2) and sealing and fixing it to the upper end of the airbag (1) through bolts and a fastening ring for installation and positioning; The shock absorber structure (3) is sealed and fixed to the lower end of the airbag (1) through a fastening ring, and the upper end of the output shaft is threadedly connected to the mounting docking top piece (2), and is characterized in that: The shock absorber structure (3) comprises a central axis rod (322), a plurality of hydraulic pistons (323) are fixed in a circular array along the axis at the middle and upper position of the rod body of the central axis rod (322), a liquid replenishing valve (3231) is arranged on the inner side of each hydraulic piston (323), and a spray spring (3232) is fixedly arranged at the lower end of the hydraulic piston (323), a pneumatic piston (324) is integrally fixed to the upper end of the central axis rod (322), a lifting air inlet hole (3241) is opened inside the pneumatic piston (324) on the circumference of the axis, and the central axis rod (322) is slidably arranged at the lower part and the middle and upper part of the interior of the upper output shaft (33); A through hole is provided at the axial center position inside the upper output shaft (33), and a lifting slot (3321) for lifting and moving the hydraulic piston (323) and a hole for lifting and moving the pneumatic piston (324) are provided on the path of the through hole at positions corresponding to the hydraulic piston (323) and the pneumatic piston (324), respectively, and a connecting thread head (331) is integrally provided at the upper end of the upper output shaft (33), wherein the lifting slot (3321) is overlapped and communicated with the liquid replenishing channel (332) provided inside the upper output shaft (33), and the lifting hole of the pneumatic piston (324) is provided at a position corresponding to the lifting air inlet hole (3241) A return spring rod (333) and an air intake pipe (334) are fixedly arranged at equal intervals from each other; a spray nozzle (3322) for spraying a curing liquid is arranged at the lower end of the liquid replenishing channel (332); an air intake port (335) communicating with the space where the air intake pipe (334) is located is provided on the side of the upper output shaft (33) at a position corresponding to the air intake pipe (334); an air hood (336) with an open lower end is fixedly sleeved on the rod body of the upper output shaft (33) at the position of the air intake port (335); and a rotary guide plate (3361) is fixedly arranged between the air intake port (335) in the gap between the air hood (336) and the upper output shaft (33).

2. The air suspension shock absorbing device for an intelligent driving vehicle according to claim 1, characterized in that: The shock absorber structure (3) further comprises a shock absorber body (31), wherein a lower output shaft (32) is slidably limitedly disposed inside the shock absorber body (31), a middle shaft rod (322) is integrally disposed at the center position of the upper end of the lower output shaft (32), and a plurality of extension auxiliary rods (321) are integrally disposed around the upper end of the lower output shaft (32) and are slidably inserted inside the upper output shaft (33) for auxiliary extension.

3. The air suspension shock absorbing device for an intelligent driving vehicle according to claim 1, characterized in that: The pneumatic piston (324) is provided with a mounting hole at the axial position, and a piston core rod (3242) is provided in the mounting hole by slidingly limiting the return air spring (3244), wherein the piston core rod (3242) is composed of a piston end and a tube body, wherein a plurality of open movable air ports (3243) are provided on the peripheral side of the tube body, and a through hole penetrating into the tube is also provided at the lower end of the tube body, and a plurality of return air ports (3245) are provided on the tube wall of the central axis rod (322) at positions corresponding to the return air spring (3244) along the axial ring array.

4. The air suspension shock absorbing device for an intelligent driving vehicle according to claim 1, characterized in that: The fluid replenishing channel (332) is opened in a ring shape along the diameter of the tube around the axis inside the upper output shaft (33), and transforms into a hole shape at the hole position where the return spring rod (333) and the air intake pipe (334) are located, and continues to extend downward to the middle upper position of the airbag (1), and then penetrates the upper output shaft (33) outward.

5. The air suspension shock absorbing device for an intelligent driving vehicle according to claim 1, characterized in that: The connecting thread head (331) is threadedly connected to the interior of the mounting docking top piece (2), and an air interface for air injection and a liquid replenishment interface for replenishing the curing agent are respectively provided on the upper end and side of the portion of the rod body that is screwed out of the mounting docking top piece (2), and the air interface is connected to the lifting and lowering hole of the liquid replenishment channel (332), and the liquid replenishment interface is connected to the liquid replenishment channel (332).

6. The air suspension shock absorbing device for an intelligent driving vehicle according to claim 1, characterized in that: The air inlet pipe (334) is provided with a strip-shaped square hole penetrating the rod body at the middle and lower position of the rod body.

7. The air suspension shock absorbing device for an intelligent driving vehicle according to claim 1, characterized in that: The spray nozzle (3322) is located at the air guide port formed by the intervals between the rotary guide plates (3361).

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