CN115257255A - Tire inflation and deflation device and vehicle - Google Patents
Tire inflation and deflation device and vehicle Download PDFInfo
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- CN115257255A CN115257255A CN202210931218.3A CN202210931218A CN115257255A CN 115257255 A CN115257255 A CN 115257255A CN 202210931218 A CN202210931218 A CN 202210931218A CN 115257255 A CN115257255 A CN 115257255A
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- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 230000006837 decompression Effects 0.000 claims description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/10—Arrangement of tyre-inflating pumps mounted on vehicles
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Abstract
The invention provides a tire inflation and deflation device and a vehicle, wherein the tire inflation and deflation device comprises: the first air passage, the second air passage and the wheel pipeline; one part of the first air passage is arranged inside a steering knuckle of the vehicle, the other part of the first air passage is arranged inside a half shaft assembly of the wheel, the first end of the first air passage is communicated with an air source mechanism, and the air source mechanism is used for inflating and deflating tires of the vehicle; the second air passage is arranged in the half shaft assembly, and the first end of the second air passage is communicated with the second end of the first air passage; the first end of the wheel pipeline is communicated with the second end of the second air channel, the second end of the wheel pipeline is communicated with the tire, a wheel valve is arranged at the joint of the wheel pipeline and the tire, and the wheel valve is used for controlling air exchange between the wheel pipeline and the tire. The invention can improve the adaptability of the tire inflation and deflation device to the vehicle.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a tire inflation and deflation device.
Background
Nowadays, the automobile industry is rapidly developed, automobiles become the first choice for more and more people to ride instead of walk, and the safety and convenience of the automobile on partial functions also become targets concerned by users, wherein the driving performance of the automobile under different road conditions is one of the hot spots concerned by the users.
In the prior art, a central tire inflation/deflation system can be configured on a vehicle with special purpose so as to control the air pressure of the vehicle tires and deal with different road conditions. However, in general automobiles and in special cases, the general automobiles are not provided with related components and cannot use the tire inflation and deflation functions, so that the application rate of the tire inflation and deflation functions on the automobiles is low, and the adaptability of the conventional tire inflation and deflation device is poor.
Disclosure of Invention
The invention provides a tire inflation and deflation device and a vehicle, and aims to solve the problem that the tire inflation and deflation device is poor in adaptability to the vehicle.
In order to achieve the above object, an embodiment of the present invention provides a tire inflation and deflation apparatus, including: the first air passage, the second air passage and the wheel pipeline; one part of the first air passage is arranged inside a steering knuckle of the vehicle, the other part of the first air passage is arranged inside a half shaft assembly of the wheel, and the first end of the first air passage is communicated with an air source mechanism which is used for inflating and deflating tires of the vehicle; the second air passage is arranged inside the half shaft assembly, and a first end of the second air passage is communicated with a second end of the first air passage; the first end of the wheel pipeline is communicated with the second end of the second air channel, the second end of the wheel pipeline is communicated with the tire, a wheel valve is arranged at the joint of the wheel pipeline and the tire, and the wheel valve is used for controlling air exchange between the wheel pipeline and the tire; wherein, when the tire is pressurized, the wheel valve is opened, and the air source mechanism pressurizes the air to inflate the tire of the vehicle through the first air passage, the second air passage and the wheel pipeline; in the event of decompression of the tire, the wheel valve opens and the air supply mechanism deflates the tire via the first air passage, the second air passage and the wheel line.
The embodiment of the invention also provides a vehicle comprising the tire inflation and deflation device.
One of the above technical solutions has the following advantages or beneficial effects:
according to the technical scheme of the invention, the tire inflation and deflation device comprises: the first air passage, the second air passage and the wheel pipeline; one part of the first air passage is arranged inside a steering knuckle of the vehicle, the other part of the first air passage is arranged inside a half shaft assembly of the wheel, and a first end of the first air passage is communicated with an air source mechanism which is used for inflating and deflating tires of the vehicle; the second air channel is arranged inside the half shaft assembly, and a first end of the second air channel is communicated with a second end of the first air channel; the first end of the wheel pipeline is communicated with the second end of the second air passage, the second end of the wheel pipeline is communicated with the tire, a wheel valve is arranged at the joint of the wheel pipeline and the tire and used for controlling gas exchange between the wheel pipeline and the tire, when the tire needs to be pressurized, the pressurized gas is released by the gas source mechanism, the wheel valve is in an open state, and the gas sequentially enters the tire through the first air passage, the second air passage and the wheel pipeline, so that the tire pressure of the vehicle meets the requirement of the corresponding road condition, when the tire needs to be depressurized, the wheel valve is in the open state, the tire can release the gas to complete depressurization, the tire pressure of the vehicle meets the requirement of the corresponding road condition, and the adaptability of the tire inflation and deflation device is improved.
It should be understood that the statements in this section do not necessarily identify key or critical features of the embodiments of the present invention, nor do they necessarily limit the scope of the invention. Other features of the present invention will be readily apparent from the following specification.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a block diagram of a tire inflation and deflation apparatus provided in accordance with an embodiment of the present invention;
FIG. 2 is a view showing a structure of a rotary air seal member in the tire inflation/deflation apparatus according to the embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure are described below with reference to the accompanying drawings, in which various details of embodiments of the present disclosure are included to assist understanding, and which are to be considered as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present disclosure. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.
The terms first, second and the like in the description and in the claims of the present invention are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the structures so used are interchangeable under appropriate circumstances such that embodiments of the invention may be practiced in sequences other than those illustrated or described herein, and that the terms "first", "second", etc. are generally used herein as a class and do not limit the number of terms, for example, a first term can be one or more than one.
The invention provides a tire inflation and deflation device.
Referring to fig. 1 to 2, the tire inflating and deflating device includes: a first air passage 10, a second air passage 20 and a wheel line; a part of the first air passage 10 is arranged inside a steering knuckle of the vehicle, the other part of the first air passage 10 is arranged inside a half shaft assembly of the wheel, and a first end of the first air passage 10 is communicated with an air supply mechanism which is used for inflating and deflating a tire of the vehicle; the second air passage 20 is arranged inside the half shaft assembly, and a first end of the second air passage 20 is communicated with a second end of the first air passage; the first end of the wheel pipeline is communicated with the second end of the second air channel, the second end of the wheel pipeline is communicated with the tire, a wheel valve is arranged at the joint of the wheel pipeline and the tire, and the wheel valve is used for controlling air exchange between the wheel pipeline and the tire; wherein, when the tire is pressurized, the wheel valve is opened, and the air source mechanism pressurizes the air to inflate the tire of the vehicle through the first air passage 10, the second air passage 20 and the wheel pipeline; in the event of decompression of the tire, the wheel valve opens and the air supply mechanism deflates the tire via the first air passage 10, the second air passage 20 and the wheel line.
In this embodiment, the tire inflation and deflation device includes a first air passage 10, a second air passage 20 and a wheel pipeline, wherein, when the tire needs to be pressurized, the air source mechanism releases the pressurized air, the wheel valve is in an open state, and the air sequentially passes through the first air passage 10, the second air passage 20 and the wheel pipeline to enter the tire, so that the tire pressure of the vehicle meets the requirement of the corresponding road condition.
The tire inflation and deflation device can be further provided with an air pressure detection component, and the air pressure detection component is used for detecting the air pressure in the tire, so that the real-time air pressure state of the tire is provided for a user, and the convenience and the safety of using the tire inflation and deflation device by the user are improved.
It should be noted that, when the tire needs to be depressurized, the tire may be externally connected with an air outlet pipeline, so that the tire can be depressurized by manually opening the air outlet pipeline, or, of course, the wheel valve may be opened, so that the air is released from the tire and returns to the air supply mechanism through the wheel pipeline, the second air channel 20 and the first air channel 10 in sequence, and finally the wheel valve is closed, so that the tire is kept at the air pressure for operation.
When the tire needs to be decompressed, the wheel valve is opened, and the air exhaust component exhausts the redundant air in the tire, so that the air pressure in the tire meets the requirement of a corresponding road condition.
As an optional implementation, the apparatus further comprises: the first rotary air sealing component 30 is arranged at a first connecting position of the steering knuckle and the half shaft assembly, wherein the first rotary air sealing component 30 is provided with a first through hole, the diameter of the first through hole is smaller than or equal to the diameter of a pipeline of the first air passage 10, and the first through hole is used for communicating the air passages arranged at two sides of the first rotary air sealing component 30; wherein, under the condition that the vehicle runs and the device controls the tire to be pressurized or depressurized, the steering knuckle and the half axle assembly rotate relatively, and the first rotary air sealing component 30 is used for separating the first air passages on two sides of the first through hole, so that the vehicle can control the air pressure of the tire during running.
In this embodiment, the first rotary air sealing component 30 may be disposed at the first connection position, and when the gas needs to pass through the first air passage 10, the gas also needs to pass through the first rotary air sealing component 30, wherein the gas is the first through hole disposed through the first rotary air sealing component 30, and the first rotary air sealing component 30 may separate sub air chambers in front of and behind the first air passage 10, so that the pipeline behind the air chamber and the hub reach a state of relative stationary rotation, thereby achieving the purpose of adjusting while driving, and further improving the effect of controlling the air pressure of the tire during the driving process of the vehicle.
It should be noted that the first rotary gas seal member 30 is disposed at the first connection position, the first connection position is located at the connection position of the steering knuckle and the half axle assembly, and the connection mode of the first rotary gas seal member 30, the steering knuckle and the half axle assembly under any applicable corresponding working condition can be adopted, for example: the first rotary air sealing member 30 may be in interference fit with the mounting hole of the steering knuckle, and may also be a circlip to prevent the first rotary air sealing member 30 from falling off, and the first rotary air sealing member 30 may be fixedly connected with the half shaft assembly. The embodiment of the present invention is not limited thereto.
In addition, the diameter of the first through hole is smaller than or equal to the diameter of the pipeline of the first air channel 10, and through the arrangement of the structure, the air tightness when the air passes through the first rotary air sealing component 30 is improved, and the instability of air pressure control caused by air leakage is reduced.
As an alternative embodiment, the first rotary air seal component 30 is connected with the knuckle by interference fit; the first rotary gas seal member 30 is connected to the half shaft assembly by interference fit.
In this embodiment, the first rotary gas seal component 30 is connected to the knuckle by an interference fit; the first rotary air seal component 30 is connected with the half shaft assembly in an interference fit manner, and through the arrangement of the structure, the connection stability between the first rotary air seal component 30 and the steering knuckle and the half shaft assembly can be improved, and an elastic check ring can be further arranged in the first rotary air seal component 30, so that the first rotary air seal component 30 is prevented from falling off, and the connection stability between the first rotary air seal component 30, the steering knuckle and the half shaft assembly is improved.
As an optional implementation, the apparatus further comprises: and the third air passage 40 is arranged inside the steering knuckle, a first end of the third air passage 40 is communicated with the air supply mechanism, and a second end of the third air passage 40 is connected into and communicated with the second air passage 20.
In this embodiment, the tire inflation and deflation device may further include a third air passage 40, and two ends of the third air passage 40 are respectively connected to the air supply mechanism and the second air passage 20, so that the air supply mechanism is communicated with the second air passage 20 through the third air passage 40, and through the arrangement of the structure, under the condition that the tire needs to be pressurized, the air supply mechanism may simultaneously deliver air to the first air passage 10 and the third air passage 40, thereby improving the working efficiency of the tire inflation and deflation device.
The first air passage 10 and the third air passage 40 may be arranged in a straight line direction, and the second air passage 20 is connected to the connection point of the first air passage 10 and the third air passage 40 in a vertical straight line direction.
As an alternative embodiment, the position where the first air passage 10 communicates with the second air passage 20 is a first position, and the second end of the third air passage 40 is connected to the first air passage 10 and the second air passage 20 at the first position; wherein, under the condition that the device controls the tire pressurization, gas enters the half shaft assembly from the first air passage 10 and the third air passage 40, and the gas is converged at the first position and enters the tire through the second air passage 20 to be pressurized by the tire.
In this embodiment, the third air duct 40 is connected to and communicated with the first air duct 10 and the second air duct 20 at the first position, that is, during the process of inflating and deflating the tire, the air released from the air supply mechanism may enter the interior of the half axle assembly from the first air duct 10 and the third air duct 40, and be converged at the first position, and then the converged air enters the tire through the second air duct 20, the wheel pipeline and the wheel valve, and through the arrangement of the structure, the working efficiency of the tire inflating and deflating device is improved.
As an optional implementation, the apparatus further comprises: the second rotary air sealing component 50 is arranged at a second connecting position of the steering knuckle and the half shaft assembly, wherein a second through hole is formed in the second rotary air sealing component 50, the diameter of the second through hole is smaller than or equal to the diameter of a pipeline of the third air passage 40, and the second through hole is used for communicating the air passages arranged at two sides of the second rotary air sealing component 50; under the condition that the vehicle runs and the device controls the tire to be pressurized or depressurized, the steering knuckle and the half shaft assembly rotate relatively, and the second rotary air sealing component 50 is used for separating the third air passages 40 on two sides of the second through hole so as to control the air pressure of the tire during the running process of the vehicle.
In this embodiment, the second rotary air sealing member 50 may be disposed at the second connection position, and when the gas needs to pass through the third air duct 40, the gas also needs to pass through the second rotary air sealing member 50, where the gas is the second through hole disposed through the second rotary air sealing member 50, and the second rotary air sealing member 50 may separate sub air chambers in front of and behind the third air duct 40, so that the pipeline and the hub behind the air chambers are in a relatively stationary and rotating state, thereby achieving the purpose of adjusting while driving, and further improving the air pressure control effect of the vehicle on the tire during driving.
It should be noted that the second rotary air sealing member 50 is disposed at the second connection position, the second connection position is located at the connection position of the steering knuckle and the half axle assembly, and the connection mode of the second rotary air sealing member 50, the steering knuckle and the half axle assembly under any applicable corresponding working condition may be adopted, for example: the second rotary air seal component 50 may be in interference fit with the mounting hole of the knuckle, and may also be prevented from falling off by using a circlip, and the second rotary air seal component 50 may be fixedly connected with the half shaft assembly. The embodiment of the present invention is not limited thereto.
In addition, the diameter of the second through hole is smaller than or equal to the diameter of the pipeline of the third air duct 40, and the arrangement of the structure improves the air tightness when the air passes through the second rotary air sealing component 50, and reduces the unstable air pressure control caused by air leakage.
As an alternative embodiment, the pipe diameter of the second air passage 20 is larger than the pipe diameter of the first air passage 10; the pipe diameter of the second air passage 20 is larger than that of the third air passage 40.
In this embodiment, in the process of pressurizing the tire by the tire inflation and deflation device, the gas passing through the first air passage 10 and the third air passage 40 converges and is transmitted into the second air passage 20, so the pipe diameter of the second air passage 20 may be larger than that of the first air passage 10, and the pipe diameter of the second air passage 20 may be larger than that of the third air passage 40.
In addition, the conduit diameter of first airway 10 may be of a size consistent with the conduit diameter of third airway 40.
As an alternative embodiment, the pipe diameter of the first gas duct 10 is set to 5mm, and/or; the pipe diameter of the third air passage 40 is set to 5mm.
In this embodiment, the diameter of the first air duct 10 may be set to 5mm, and similarly, the diameter of the third air duct 40 may also be set to 5mm, and by this arrangement, the normal driving state of the vehicle is not affected while the normal transmission of the gas by the tire inflation and deflation device is satisfied, and the device failure and the vehicle failure caused by the arrangement of the duct are reduced.
In an alternative embodiment, a pressure sensor is provided at a fourth connection point of the wheel line to the tire, and the pressure sensor is used for detecting the air pressure of the tire.
In this embodiment, the pressure sensor is disposed at the fourth connection position, so that the pressure data in the tire can be monitored in real time through the structure, and the user can adjust the pressure of the tire according to the pressure data and the actual road condition, thereby improving the driving performance of the vehicle.
According to an embodiment of the present invention, there is also provided a vehicle including the tire inflation and deflation device.
It should be understood that various forms of the flows shown above may be used, with steps reordered, added, or deleted. For example, the steps described in the present invention may be executed in parallel, sequentially, or in different orders, and are not limited herein as long as the desired results of the technical solutions disclosed in the present disclosure can be achieved.
The above-described embodiments should not be construed as limiting the scope of the invention. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations, and substitutions can be made in accordance with design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A tire inflation and deflation device applied to a vehicle is characterized by comprising: the first air passage, the second air passage and the wheel pipeline;
one part of the first air passage is arranged inside a steering knuckle of the vehicle, the other part of the first air passage is arranged inside a half shaft assembly of the wheel, and a first end of the first air passage is communicated with an air source mechanism which is used for inflating and deflating tires of the vehicle;
the second air passage is arranged inside the half shaft assembly, and a first end of the second air passage is communicated with a second end of the first air passage;
the first end of the wheel pipeline is communicated with the second end of the second air channel, the second end of the wheel pipeline is communicated with the tire, a wheel valve is arranged at the joint of the wheel pipeline and the tire, and the wheel valve is used for controlling air exchange between the wheel pipeline and the tire;
wherein, when the tire is pressurized, the wheel valve is opened, and the air source mechanism pressurizes the air to inflate the tire of the vehicle through the first air passage, the second air passage and the wheel pipeline; in the event of decompression of the tire, the wheel valve opens and the air supply mechanism deflates the tire via the first air passage, the second air passage and the wheel line.
2. The tire inflation and deflation apparatus of claim 1, wherein the apparatus further comprises: the first rotary air seal component is arranged at a first connecting position of the steering knuckle and the half shaft assembly, and is provided with a first through hole, the diameter of the first through hole is smaller than or equal to the diameter of a pipeline of the first air passage, and the first through hole is used for communicating the air passages arranged at two sides of the first rotary air seal component;
when the vehicle runs and the device controls the tire to be pressurized or depressurized, the steering knuckle and the half shaft assembly rotate relatively, and the first rotary air sealing component is used for separating the first air passages on two sides of the first through hole so as to control the air pressure of the tire during the running process of the vehicle.
3. The tire inflation and deflation device of claim 2 wherein the first rotary air seal component is connected to the knuckle by interference fit;
the first rotary air seal component is connected with the half shaft assembly in an interference fit mode.
4. Tire inflation and deflation device according to claim 2, wherein the device further comprises: and the third air passage is arranged inside the steering knuckle, the first end of the third air passage is communicated with the air source mechanism, and the second end of the third air passage is connected into and communicated with the second air passage.
5. The tire inflation and deflation device of claim 4, wherein the location where the first air passage communicates with the second air passage is a first location, and the second end of the third air passage is connected to and communicates with the first air passage and the second air passage at the first location;
wherein, under the condition that the device controls the tire to be pressurized, gas enters the half shaft assembly from the first air passage and the third air passage, and the gas is converged at the first position and enters the tire through the second air passage to be pressurized by the tire.
6. A tire inflation and deflation apparatus as in claim 4, wherein the apparatus further comprises: the second rotary air seal component is arranged at a second connecting position of the steering knuckle and the half shaft assembly, and is provided with a second through hole, the diameter of the second through hole is smaller than or equal to the diameter of a pipeline of the third air passage, and the second through hole is used for communicating the air passages arranged at two sides of the second rotary air seal component;
under the condition that the vehicle runs and the device controls the tire to be pressurized or depressurized, the steering knuckle and the half shaft assembly rotate relatively, and the second rotary air sealing component is used for separating the third air passages on two sides of the second through hole so as to control the air pressure of the tire during the running process of the vehicle.
7. The tire inflation and deflation device of claim 4, wherein the conduit diameter of the second air passage is larger than the conduit diameter of the first air passage;
the diameter of the pipeline of the second air passage is larger than that of the pipeline of the third air passage.
8. The tire inflation and deflation device according to claim 7, wherein the conduit diameter of the first air passage is set to 5mm, and/or;
the diameter of the pipeline of the third air passage is set to be 5mm.
9. A tire inflation and deflation apparatus as claimed in claim 1, wherein a pressure sensor is provided at a fourth connection location of the wheel conduit and the tire, the pressure sensor being used to detect the air pressure of the tire.
10. A vehicle comprising a tire inflation/deflation device according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210931218.3A CN115257255A (en) | 2022-08-04 | 2022-08-04 | Tire inflation and deflation device and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210931218.3A CN115257255A (en) | 2022-08-04 | 2022-08-04 | Tire inflation and deflation device and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115257255A true CN115257255A (en) | 2022-11-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210931218.3A Pending CN115257255A (en) | 2022-08-04 | 2022-08-04 | Tire inflation and deflation device and vehicle |
Country Status (1)
| Country | Link |
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| CN (1) | CN115257255A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4489855A (en) * | 1982-08-27 | 1984-12-25 | Code Manufacturing, Inc. | Instant tire inflator |
| US20170080760A1 (en) * | 2015-09-17 | 2017-03-23 | Dana Heavy Vehicle Systems Group, Llc | Hub cap assembly and a wheel end assembly for a tire inflation system |
| CN209904461U (en) * | 2019-03-25 | 2020-01-07 | 宋岭林 | Tire pressure regulating device for automatic inflation and deflation of vehicle |
| CN209920960U (en) * | 2019-05-31 | 2020-01-10 | 吉林大学 | Automatic inflation and deflation device for vehicle tire |
| WO2020241402A1 (en) * | 2019-05-30 | 2020-12-03 | Ｋｙｂ株式会社 | Shock-absorber |
-
2022
- 2022-08-04 CN CN202210931218.3A patent/CN115257255A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4489855A (en) * | 1982-08-27 | 1984-12-25 | Code Manufacturing, Inc. | Instant tire inflator |
| US20170080760A1 (en) * | 2015-09-17 | 2017-03-23 | Dana Heavy Vehicle Systems Group, Llc | Hub cap assembly and a wheel end assembly for a tire inflation system |
| CN206201826U (en) * | 2015-09-17 | 2017-05-31 | 德纳重型车辆系统集团有限责任公司 | Wheel hub cap assembly and the wheel end assembly for tire deflation system charge |
| CN209904461U (en) * | 2019-03-25 | 2020-01-07 | 宋岭林 | Tire pressure regulating device for automatic inflation and deflation of vehicle |
| WO2020241402A1 (en) * | 2019-05-30 | 2020-12-03 | Ｋｙｂ株式会社 | Shock-absorber |
| CN209920960U (en) * | 2019-05-31 | 2020-01-10 | 吉林大学 | Automatic inflation and deflation device for vehicle tire |
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