Self-adaptive automobile damping device capable of automatically regulating and controlling jolting damping

Abstract

The utility model discloses a self-adaptive bumping damping automatic regulation and control automobile damping device which comprises an inner cylinder barrel, an outer cylinder barrel, an outer cylinder barrel, an inner cylinder barrel and an outer cylinder barrel, the outer cylinder barrel is coaxially arranged on the outer side of the inner cylinder barrel in a sleeving mode, and an annular oil cavity is formed between the outer cylinder barrel and the inner cylinder barrel; the piston rod is coaxially arranged in the inner cylinder barrel and divides the interior of the inner cylinder barrel into an upper oil cavity and a lower oil cavity; the base is connected with one end of the outer cylinder barrel and one end of the inner cylinder barrel; a first oil through hole is formed in the base; the oil passing assembly is connected to the base; a second oil passing hole is formed in the oil passing assembly; the buffer cover plate corresponds to the position of the second oil through hole and is arranged at the piston end of the piston rod; the buffer assembly is arranged on the oil passing assembly; wherein the inner cylinder barrel upper oil cavity is communicated with the annular oil cavity through the oil passing opening, and the inner cylinder barrel lower oil cavity is communicated with the annular oil cavity through the first oil passing hole and the second oil passing hole.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile shock absorption, and particularly relates to an automobile shock absorption device with self-adaptive bump damping and automatic regulation. Background Art

[0002] Shock absorbers are crucial for improving vehicle comfort, handling stability, and safety during driving. Existing hydraulic shock absorbers often suffer from poor damping performance when handling complex road conditions. For example, when encountering large bumps, the shock absorber can easily bottom out, causing severe vehicle vibration and a degraded driving experience. Furthermore, the damping adjustment mechanism of traditional shock absorbers is inflexible, making it difficult to adjust the damping force according to varying road conditions and driving states, thus failing to fully utilize the shock absorption effect. Utility Model Content

[0003] The purpose of the utility model is to solve the deficiencies in the shock absorption effect and damping adjustment of the existing automobile shock absorption device, and to provide an automobile shock absorption device with self-adaptive bump damping and automatic regulation.

[0004] The technical solution provided by this utility model is:

[0005] An automobile shock absorption device with adaptive bump damping and automatic control, comprising:

[0006] The inner cylinder is a hollow cylindrical structure; an oil port is provided on the side of the inner cylinder;

[0007] The outer cylinder is a hollow cylindrical structure; the outer cylinder is coaxially sleeved on the outer side of the inner cylinder; an annular oil chamber is formed between the outer cylinder and the inner cylinder;

[0008] A piston rod is coaxially disposed in the inner cylinder; the piston end of the piston rod divides the interior of the inner cylinder into an upper oil chamber and a lower oil chamber;

[0009] A base connected to the outer cylinder and one end of the inner cylinder; a first oil hole is provided inside the base;

[0010] An oil-passing assembly is connected to the base; a second oil-passing hole is provided inside the oil-passing assembly;

[0011] a buffer cover plate, which corresponds to the position of the second oil hole and is provided at the piston end of the piston rod;

[0012] A buffer component, which is arranged on the oil-passing component;

[0013] The upper oil chamber of the inner cylinder is connected to the annular oil chamber through the oil port, and the lower oil chamber of the inner cylinder is connected to the annular oil chamber through the first oil hole and the second oil hole.

[0014] Preferably, the piston rod further comprises:

[0015] The piston assembly is arranged at the piston end of the piston rod; the piston assembly includes a piston and a conical protrusion.

[0016] Preferably, the buffer cover plate includes:

[0017] The telescopic sleeve is composed of two guide tubes of different diameters coaxially sleeved; one end of the large-diameter guide tube is fixedly connected to the piston assembly; one end of the small-diameter guide tube is connected to the piston assembly via a first buffer spring;

[0018] An oil hole cover plate is located at a position corresponding to the second oil hole and is fixedly connected to the other end of the small-diameter guide tube.

[0019] Preferably, the buffer assembly includes:

[0020] A buffer groove, corresponding to the position of the conical protrusion, is slidably disposed in the oil-passing assembly;

[0021] A second buffer spring is arranged between the bottom of the buffer tank and the oil-passing component.

[0022] Preferably, the piston rod is connected to the outer cylinder and the other end of the inner cylinder via a guide sleeve.

[0023] Preferably, an oil seal is provided on the outer wall of the piston rod; and the oil seal is coaxially sleeved in the guide sleeve.

[0024] Preferably, sealing rings are provided between the piston rod and the guide sleeve, and between the piston assembly and the inner cylinder; a plurality of axially arranged annular sealing grooves are provided on the outer wall of the piston assembly and the inner wall of the guide sleeve; the sealing rings are arranged in the annular sealing grooves to seal the connection.

[0025] The beneficial effects of the present invention are as follows: the automobile shock absorption device with adaptive bump damping automatic control provided by the present invention has a compact structure and occupies a small space. It can quickly respond to bump changes under complex road conditions, flexibly adjust the damping force, and ensure vehicle control stability and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The utility model is a schematic diagram of the overall structure of the automobile shock absorption device with adaptive bump damping automatic control.

[0027] Figure 2 This is a partial structural diagram of the upper half of the automobile shock absorption device with automatic adaptive bump damping control described in the utility model.

[0028] Figure 3 This is a schematic diagram of the partial structure of the lower half of the automobile shock absorption device with automatic control of adaptive bump damping described in the present utility model.

[0029] Figure markings: outer cylinder 110; annular oil chamber 111; inner cylinder 120; oil port 121; upper oil chamber 122; lower oil chamber 123; base 130; first oil hole 131; oil chamber 132 in base; piston rod 140; piston 141; conical protrusion 142; oil passage assembly 150; second oil hole 151; mounting groove 152; buffer cover 160; large diameter guide tube 161; small diameter guide tube 162; first buffer spring 163; oil hole cover 164; buffer assembly 170; buffer groove 171; second buffer spring 172; guide sleeve 181; oil seal 182; O-ring 191; sealing ring 192. DETAILED DESCRIPTION

[0030] The present invention will be described in further detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0031] like Figure 1-3 As shown, the utility model provides a vehicle shock absorbing device with adaptive bump damping automatic control, which includes:

[0032] The inner cylinder 120 is a hollow cylindrical structure; oil ports 121 are provided on both sides of the inner cylinder 120 .

[0033] The outer cylinder 110 is a hollow cylindrical structure; the outer cylinder 110 is coaxially sleeved on the outside of the inner cylinder 120; an annular oil chamber 111 is formed between the outer cylinder 110 and the inner cylinder 120.

[0034] The base 130 is connected to the outer cylinder 110 and one end of the inner cylinder 120 . In this embodiment, two first oil holes 131 are provided inside the base 130 , respectively disposed on both sides of the base 130 .

[0035] The oil-passing component 150 is fixedly connected to the base 130. In this embodiment, two second oil holes 151 are provided on both sides of the interior of the oil-passing component 150, and an upwardly open mounting groove 152 is provided in the middle. The two second oil holes 151 are respectively arranged on both sides of the mounting groove 152. The upper part of the base 130 and the lower part of the oil-passing component 150 form an oil chamber 132 in the base.

[0036] The piston rod 140 is coaxially arranged in the inner cylinder 120; the piston end of the piston rod 140 is provided with a piston assembly; the piston assembly includes a piston 141 and a conical protrusion 142; the piston assembly is coaxially slidably arranged in the inner cylinder 120. The piston rod 140 is connected to the outer cylinder 110 and the other end of the inner cylinder 120 through a guide sleeve 181, and the connection between the guide sleeve 181 and the outer cylinder 110 and the inner cylinder 120 is provided with a sealing groove, and an O-ring 191 is arranged in the sealing groove to achieve sealing at the connection; the outer wall of the piston rod 140 is provided with an oil seal 182; the oil seal 182 is coaxially sleeved in the guide sleeve 181; a sealing ring 192 is provided between the piston rod 140 and the guide sleeve 181, and between the piston assembly and the inner cylinder 120; the outer wall of the piston assembly and the guide sleeve The inner wall of 181 is provided with a plurality of axially arranged annular sealing grooves; the sealing ring 192 is composed of a plurality of axially arranged O-rings 191, and the sealing ring 192 is arranged in the annular sealing groove to ensure the sealing of the connection; wherein, the piston end of the piston rod 140 divides the interior of the inner cylinder 120 into an upper oil chamber 122 and a lower oil chamber 123, and the upper oil chamber 122 is formed by the inner side of the inner cylinder 120, the upper part of the piston assembly and the guide sleeve 181, and the lower oil chamber 123 is formed by the inner side of the inner cylinder 120, the lower part of the piston assembly and the upper part of the oil-passing component 150.

[0037] A buffer cover 160, which corresponds to the position of the second oil hole 151 and is arranged at the piston end of the piston rod 140; the buffer cover 160 includes: a telescopic sleeve, which is composed of two guide tubes of different diameters coaxially sleeved; one end of the large-diameter guide tube 161 is fixedly connected to the piston assembly; one end of the small-diameter guide tube 162 is connected to the piston assembly through a first buffer spring 163; the large-diameter guide tube 161 is coaxially sleeved on the outside of the small-diameter guide tube 162; the telescopic sleeve is made of a material that avoids reacting with or being corroded by oil, such as a stainless steel tube or a copper tube; an oil hole cover 164, which corresponds to the position of the second oil hole 151 and is fixedly connected to the other end of the small-diameter guide tube 162; through the guiding effect of the telescopic sleeve, it can be ensured that the movement trajectory of the oil hole cover 164 does not deviate, so that the oil hole cover 164 can accurately cover the second oil hole 151 to achieve control of the flow of oil.When the vehicle is bumped, after the piston rod 140 slides downward and the buffer cover 160 contacts the oil-passing assembly 150, the first buffer spring 163 will play an important buffering role. Since one end of the telescopic sleeve is connected to the piston assembly through the first buffer spring 163, when the piston rod 140 continues to move downward, it will drive the small-diameter guide tube 162 to shrink into the large-diameter guide tube 161. At this time, the first buffer spring 163 is compressed. The first buffer spring 163 converts the kinetic energy of the piston rod 140 into elastic potential energy through its own elastic deformation, thereby slowing down the movement speed of the piston rod 140 and playing a buffering effect. This helps to prevent the vehicle from generating a large impact due to the rapid downward movement of the piston rod 140 during the bumping process, avoiding adverse effects on the driving stability and comfort of the vehicle. The first buffer spring 163 can effectively absorb and disperse the impact force caused by the bump, reduce the vibration of the vehicle during driving, make the vehicle more stable under bumpy road conditions, and reduce the impact of bumps on the vehicle The impact of the structure and the driver and passengers; the telescopic sleeve provides a stable movement guide for the oil hole cover 164, so that the oil hole cover 164 can move along a predetermined path during the driving of the vehicle, whether in normal state or when bumping, ensuring that the oil hole cover 164 can accurately open and close the second oil hole 151, ensuring the normal flow path of the oil or timely closing the second oil hole 151 when needed, the telescopic sleeve works together with the first buffer spring 163 to make the movement of the buffer cover 160 more stable and controllable. When the vehicle is bumpy, the telescopic sleeve can make the entire buffer system more stable, preventing damage to components or abnormal vibration caused by the irregular movement of the piston rod 140. At the same time, the telescopic sleeve also provides structural support for the buffer cover 160, enhances the connection stability between the buffer cover 160 and the piston assembly, ensures that the entire buffer system can operate normally under complex force conditions, and provides a guarantee for the normal operation of the vehicle shock absorber under different working conditions.

[0038] The buffer assembly 170 is arranged on the oil-passing assembly 150; the buffer assembly 170 includes: a buffer groove 171, which corresponds to the position of the conical protrusion 142 and is slidably arranged in the mounting groove 152 of the oil-passing assembly 150; the buffer groove 171 matches the shape of the conical protrusion 142, and the buffer groove 171 has a guiding function to prevent the conical protrusion 142 from offsetting when moving in the buffer groove 171; the size of the buffer groove 171 is larger than the conical protrusion 142, so that a certain gap is left between the buffer groove 171 and the conical protrusion 142 for discharging oil; a second buffer spring 172, which is arranged between the bottom of the buffer groove 171 and the bottom of the mounting groove 152, and the two ends of the second buffer spring 172 are respectively fixedly connected to the bottom of the buffer groove 171 and the bottom of the mounting groove 152; the second buffer spring 172 plays a dual protection role. On the one hand, it provides a stable support and positioning force for the buffer groove 171. Since the vehicle will generate various vibrations and shaking during driving, these vibrations may cause the buffer groove 171 to be displaced in the installation groove 152, and the second buffer spring 172 applies an inward pulling force or supporting force to the buffer groove 171 through its own elastic restoring force, so that it remains in the correct position in the installation groove 152, thereby preventing the buffer groove 171 from sliding out of the installation groove 152 due to inertia or vibration when the vehicle is driving, thereby ensuring the integrity and stability of the entire shock absorbing device structure; on the other hand, during vehicle driving, especially when encountering severe bumps, the shock absorbing device will be subjected to a great impact force. At this time, the piston rod 140 will move downward rapidly. Without the buffering effect of the second buffer spring 172, the piston rod 140 may suddenly bottom out in a short time. , causing serious impact and damage to the shock absorber and related components such as the vehicle chassis. The existence of the second buffer spring 172 can buffer the piston rod 140 when it descends rapidly. When the piston rod 140 moves downward, it will squeeze the buffer groove 171 to approach the bottom of the mounting groove 152. The second buffer spring 172 will be compressed, and the kinetic energy of the piston rod 140 will be partially converted into the elastic potential energy of the spring, thereby slowing down the movement speed of the piston rod 140 and preventing it from suddenly hitting the bottom. This buffering effect can disperse and absorb part of the impact force, reduce the possibility of the piston rod 140 hitting the bottom, protect the internal structure of the shock absorber, extend the service life of the shock absorber, and also reduce the adverse effects of the piston rod 140 hitting the bottom on the vehicle driving stability and comfort.

[0039] Among them, the upper oil chamber 122 of the inner cylinder is connected to the annular oil chamber 111 through the oil port 121, the lower oil chamber 123 of the inner cylinder is connected to the oil chamber 132 in the base through the second oil hole 151, and the oil chamber 132 in the base is connected to the annular oil chamber 111 through the first oil hole 131, so that the lower oil chamber 123 of the inner cylinder is connected to the annular oil chamber 111 when the buffer cover 160 is not in effect, ensuring that when the vehicle is running smoothly, the piston rod 140 slides in the inner cylinder 120, and the damping force inside the automobile shock absorber device can be automatically adjusted.

[0040] When the vehicle is in a stable driving state, the piston rod 140 slides in the inner cylinder 120. Since the sliding distance is relatively small, the buffer cover 160 and the buffer assembly 170 do not work; when the piston rod 140 slides downward, the oil flows from the lower oil chamber 123 through the second oil hole 151 into the oil chamber 132 in the base, and then flows into the annular oil chamber 111 through the first oil hole 131, and then flows into the upper oil chamber 122 through the oil port 121; conversely, when the piston rod 140 slides upward, the oil flows from the upper oil chamber 122 through the oil port 121 into the annular oil chamber 111, and then flows into the oil chamber 132 in the base through the first oil hole 131, and then flows into the lower oil chamber 123 through the second oil hole 151, thereby realizing automatic adjustment of the damping force.

[0041] When the vehicle is bumpy, the piston rod 140 slides downward, and the piston assembly drives the buffer cover 160 to move downward. When the buffer cover 160 contacts the oil-passing assembly 150, the buffer cover 160 blocks the second oil hole 151, and the oil in the lower oil chamber 123 no longer continues to flow to the oil chamber 132 in the base. At this time, the piston rod 140 no longer slides downward. At the same time, the first buffer spring 163 is provided in the telescopic sleeve. The two act together to prevent the piston rod 140 from suddenly touching the bottom when the vehicle is suddenly bumpy, thereby affecting the vehicle's driving stability and comfort. If the vehicle's bumpiness is further increased, The sudden change in the pressure caused the piston rod 140 to continue sliding downward, and the telescopic sleeve contracts. The first buffer spring 163 is compressed, and the conical protrusion 142 enters the buffer groove 171. The oil in the buffer groove 171 is discharged through the gap between the conical protrusion 142 and the buffer groove 171, and the conical protrusion 142 pushes the buffer groove 171. At this time, the second buffer spring 172 at the bottom of the buffer groove 171 takes effect, further buffering the downward movement of the piston rod 140 and preventing the piston rod 140 from suddenly hitting the bottom, thereby minimizing the adverse effects on the vehicle's driving stability and comfort.

[0042] The utility model provides an automobile shock-absorbing device with adaptive bump damping automatic regulation, and its shock-absorbing performance is improved: through the unique structural design, it can effectively prevent the shock absorber from bottoming out; the inner cylinder, outer cylinder, piston rod and other components work together, and when the vehicle bumps, with the help of the ingenious layout of the oil chamber and the oil hole, the oil flow and pressure are reasonably adjusted, so that the damping force can be adapted to different bump intensities, ensuring that the vehicle always remains stable during driving, which greatly improves the driving comfort; in terms of the flexibility of damping adjustment: the shock-absorbing device provided by the utility model can automatically and accurately adjust the damping force according to different road conditions and vehicle driving conditions, and can adjust the damping force on complex roads Under normal circumstances, the various components work closely together and can quickly respond to changes brought about by bumps; for example, the buffer assembly and the piston rod assembly cooperate and interact with each other, and the damping force can be flexibly adjusted, thereby ensuring the vehicle's handling stability and safety, and significantly enhancing the vehicle's ability to cope with complex road conditions; in terms of structural compactness: the various components of the utility model adopt a scientific and reasonable layout, are closely combined with each other, occupy a small space, and are easy to install in the limited installation space of the vehicle. At the same time, this compact structure is also conducive to subsequent maintenance and repair work, reduces costs, and effectively improves the overall performance and reliability of the vehicle, providing an efficient and practical solution for automotive shock absorption technology.

[0043] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with this field, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. An automobile shock absorption device with adaptive bump damping automatic control, characterized in that: include: The inner cylinder is a hollow cylindrical structure; an oil port is provided on the side of the inner cylinder; The outer cylinder is a hollow cylindrical structure; the outer cylinder is coaxially sleeved on the outer side of the inner cylinder; an annular oil chamber is formed between the outer cylinder and the inner cylinder; A piston rod is coaxially disposed in the inner cylinder; the piston end of the piston rod divides the interior of the inner cylinder into an upper oil chamber and a lower oil chamber; A base connected to the outer cylinder and one end of the inner cylinder; a first oil hole is provided inside the base; An oil-passing assembly is connected to the base; a second oil-passing hole is provided inside the oil-passing assembly; a buffer cover plate, which corresponds to the position of the second oil hole and is provided at the piston end of the piston rod; A buffer component, which is arranged on the oil-passing component; The upper oil chamber of the inner cylinder is connected to the annular oil chamber through the oil port, and the lower oil chamber of the inner cylinder is connected to the annular oil chamber through the first oil hole and the second oil hole.

2. The automobile shock absorption device with automatic adaptive bump damping control according to claim 1, characterized in that: The piston rod further comprises: The piston assembly is arranged at the piston end of the piston rod; the piston assembly includes a piston and a conical protrusion.

3. The automobile shock absorption device with automatic control of adaptive bump damping according to claim 2, characterized in that: The buffer cover plate includes: The telescopic sleeve is composed of two guide tubes of different diameters coaxially sleeved; one end of the large-diameter guide tube is fixedly connected to the piston assembly; one end of the small-diameter guide tube is connected to the piston assembly via a first buffer spring; An oil hole cover plate is located at a position corresponding to the second oil hole and is fixedly connected to the other end of the small-diameter guide tube.

4. The automobile shock absorbing device with adaptive bump damping automatic control according to claim 2, characterized in that: The buffer assembly comprises: A buffer groove, corresponding to the position of the conical protrusion, is slidably disposed in the oil-passing assembly; A second buffer spring is arranged between the bottom of the buffer tank and the oil-passing component.

5. The automobile shock absorbing device with automatic control of adaptive bump damping according to claim 2, characterized in that: The piston rod is connected to the outer cylinder and the other end of the inner cylinder through a guide sleeve.

6. The automobile shock absorbing device with automatic adaptive bump damping control according to claim 5, characterized in that: An oil seal is provided on the outer wall of the piston rod; and the oil seal is coaxially sleeved in the guide sleeve.

7. The automobile shock absorbing device with automatic adaptive bump damping control according to claim 6, characterized in that: Sealing rings are provided between the piston rod and the guide sleeve, and between the piston assembly and the inner cylinder; a plurality of axially arranged annular sealing grooves are provided on the outer wall of the piston assembly and the inner wall of the guide sleeve; the sealing rings are arranged in the annular sealing grooves to seal the connection.

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