Device and method for simulating tire burst and puncture driven by tire air pressure

Abstract

The invention discloses a simulated tire bursting and puncturing device and method driven by tire air pressure, characterized in that it comprises a device base, a tire puncturing cylinder, an active connecting rod, a tire puncturing connecting rod with a tire puncturing bayonet at one end, the active connecting rod is hingedly arranged with the tire puncturing connecting rod, and further comprises a reset coil spring and an articulated shaft fixed with the active connecting rod, one end of the reset coil spring is fixed to the articulated shaft, and the other end abuts against a coil spring stop pin fixedly arranged on the tire puncturing connecting rod; the active connecting rod is provided with a linkage cylinder, which is plug-in-matched by air pressure drive to realize the linkage swing of the active connecting rod and the tire puncturing connecting rod; the invention has a simple structure and ingenious design, and by arranging a cylinder driving unit, creatively uses the internal pressure of the tire as power supply, thereby improving the convenience and applicability of the device, facilitating safety tests of manually driven and automatic driving vehicles, simulated tire burst exercises and driving training, etc., and can better restore the suddenness and randomness of actual tire bursts through remote control, and the whole process has a high safety factor and can be repeatedly used.

Description

Technical Field

[0001] The invention relates to the technical field of automobile safety testing, in particular to a simulated tire bursting and puncturing device driven by tire air pressure, and also to a simulated tire bursting and puncturing method driven by tire air pressure. Background Art

[0002] With the popularity of cars in our lives, the rate of traffic accidents has also increased year by year. According to a survey, more than 70% of traffic accidents on highways are caused by tire blowouts. Once the speed of a car exceeds 100km / h, if the driver fails to take correct actions within a very short time after a tire blowout, it is likely to directly lead to a rollover. Currently, the death rate of high-speed rollover accidents is close to 100%. It can be seen that it is very important for the driver to take correct corresponding actions in time at the moment of a tire blowout. Therefore, in the operation driving training and learning, it is very necessary to simulate and experience tire blowouts for drivers to ensure that they can take correct actions in time when encountering a tire blowout accident in actual driving.

[0003] To achieve the simulation of a tire blowout, the key is to achieve rapid deflation of the tire. There are four main methods of tire blowout testing in the relevant technology: the first is to arrange a device to puncture the tire on the road ahead of the vehicle. This type of tire blowout device is more suitable for security; the second is to arrange a deflation duct device to conduct the tire. Under normal conditions, the deflation duct is sealed with a cover. When a tire blows, a mechanical mechanism or an electromagnetic valve is used to open the cover to achieve rapid deflation and cause a tire blowout. This is a vehicle-mounted tire blowout device and can be remotely controlled or wired to control the tire blowout. The driver can perform a tire blowout drill without knowing it, and the tires can be reused. The general arrangement of the deflation duct device can be to integrate the deflation duct system with the rim, or to integrate the deflation duct device with the wheel hub, or to design another fixing device to fix the deflation duct on the rim and connect the deflation duct and the tire; the third is to stick a detonating device with explosive material on the outside of the tire, detonate the explosive material through a remote control device to puncture the tire, achieve rapid deflation, and cause a tire blowout; the fourth is a non-vehicle-mounted device that simulates a car tire blowout by using a nail blasting device, the nail is installed on the suspension, and the nail can be remotely controlled to fall on the road ahead of the tire, puncture the tire and cause it to blow out.

[0004] However, all of the above four methods have certain defects. The first method is to arrange a tire puncture device on the road surface in advance. Compared with the simulated tire blowout driving exercise, this type of tire blowout device is more suitable for security. On the one hand, since the tire puncture device is arranged in advance before the test, the driver may instinctively reduce the speed when approaching the predetermined tire blowout area due to psychological fear. Therefore, the speed required in the case of high-speed tire blowout is not actually achieved, thereby reducing the suddenness and randomness of the tire blowout and weakening the effect of the tire blowout exercise; the second device structure is relatively complex and is designed for different models. The required rims or hubs are different, and the device that fixes the deflation duct on the rim will rotate with the tire, which has a higher risk value; the third method is very destructive to the tire, and the detonating device is attached to the tire and rotates with the tire, which is not strong enough. If it accidentally falls off while driving at high speed, the danger is also extremely high. Secondly, detonation requires explosive materials such as explosives, which are strictly controlled and difficult to obtain approval for use; the fourth type of nail pierces the tire and may not produce an effect immediately, which has a lag. In addition, the nail is not easy to find after falling, which poses a safety hazard.

[0005] At present, the traditional tire blowout simulation devices in the industry mostly use power and air supply through vehicle-mounted equipment or by adding motors, electromagnets, etc. to provide driving force. The structure of this type of design is too complicated, and there are great inconveniences in installation and removal, and it cannot be carried out on any test vehicle. Secondly, the control extension and retraction belt of the existing tire puncture bayonet has problems such as delay, which makes the tire puncture bayonet easy to be damaged. Summary of the invention

[0006] The embodiment of the present application provides a simulated tire blowout device driven by tire air pressure to solve the problems of low suddenness and randomness of simulated automobile tire blowout devices in related technologies and unsafe tire blowout process. It creatively uses the tire's internal pressure as power, is easy to install and use, is suitable for testing vehicles of any model, and has a high safety factor.

[0007] The present invention provides the following technical solution: a simulated tire bursting device driven by tire air pressure, characterized in that it comprises a device base fixed with a tire hub bolt, a tire puncturing cylinder is fixedly arranged on the device base, an active connecting rod is connected to the piston rod of the tire puncturing cylinder, one end of the active connecting rod is linked with the piston rod, and the other end thereof is extended and hingedly provided with a hinged plate, and the hinged plate is hingedly arranged with the device base through a rotating shaft;

[0008] It also includes a tire puncturing link with a tire puncturing bayonet at one end, a hinge shaft fixedly arranged on the active link, the hinge shaft and the tire puncturing link are hingedly arranged, the hinge shaft passes through the exposed part of the tire puncturing link and is provided with a reset coil spring, one end of the reset coil spring is fixed to the hinge shaft, and the other end is against a coil spring stop pin fixedly arranged on the tire puncturing link;

[0009] It also includes a linkage cylinder fixedly arranged on the active connecting rod, the linkage cylinder also includes a linkage pin, the active connecting rod and the tire puncturing connecting rod are both provided with pin holes for the linkage pin, the linkage pin can pass through the pin holes of the active connecting rod and the tire puncturing connecting rod, and is used to link the active connecting rod and the tire puncturing connecting rod so that the two are driven by the tire puncturing cylinder to swing simultaneously.

[0010] As a further configuration of the above solution, a tension spring for resetting the active connecting rod is further provided on the active connecting rod, and one end of the active connecting rod is kept in contact with the piston rod under the action of the tension spring.

[0011] As a further configuration of the above scheme, a block and a top spring are fixedly provided on the linkage latch. The top spring is sleeved on the linkage latch, and its two ends are respectively against the block and the active connecting rod, so as to elastically drive the linkage latch to move in the direction of the linkage cylinder.

[0012] As a further configuration of the above scheme, the air supply pipe of the tire puncturing cylinder is connected to the valve setting of the tire, and an electromagnetic air valve is provided on the air supply pipe. The electromagnetic air valve is used to control the air pressure inside the tire to drive the air supply of the telescopic piston rod of the tire puncturing cylinder, so as to control the tire puncturing cylinder to perform the tire puncturing operation.

[0013] As a further configuration of the above scheme, the air supply pipe of the linkage cylinder is connected between the electromagnetic valve and the tire valve. When the valve is connected to the air supply pipe, the linkage pin of the linkage cylinder is driven to plug into the pin hole to keep the active connecting rod and the tire puncture connecting rod moving at the same time.

[0014] As a further configuration of the above solution, the solenoid valve is provided with a wireless chip, and the wireless chip is used to connect to a remote device to control the switch of the solenoid valve.

[0015] A tire pressure driven simulated tire burst method, characterized by comprising:

[0016] S1: Align the reserved hole on the device base with the fixing hole on the side of the tire, and then fix the two together with bolts;

[0017] S2: Connect the air supply pipes of the tire puncture cylinder and the linkage cylinder to the tire valve. At this time, the electromagnetic valve is normally closed, and the corresponding tire puncture cylinder is in a depressurized state and has no power. At this time, the piston rod retracts into the tire puncture cylinder;

[0018] S3: When the connection of S2 is achieved, the air supply pipe of the linkage cylinder is connected to the air in the tire, and driven by the air pressure in the tire, the linkage pin facing the pin hole extends to simultaneously penetrate and connect the active connecting rod and the tire puncturing connecting rod, so that the active connecting rod and the tire puncturing connecting rod are penetrated by it, and the two are swung in linkage;

[0019] S4: At this time, after the tester controls the electromagnetic air valve to open through the remote device, the air pressure in the tire will enter the tire puncture cylinder through the air supply pipe to drive its piston rod to extend and lift the active connecting rod, and the active connecting rod swings relative to the tire based on the hinge plate;

[0020] S5: The active connecting rod swings, and the tire-puncturing connecting rod linked with it and located at the other end thereof swings accordingly, and the tire-puncturing bayonet is driven by it to puncture the tire, thereby puncturing the tire;

[0021] S6: After the tire is punctured by a puncture bayonet, the pressure-loss linkage cylinder in the tire loses its driving force, and the linkage pin is subjected to the elastic force of the top spring, releasing the linkage between the active link and the puncture link;

[0022] S7: The puncture rod swings back relative to the tire based on the elastic force of the return coil spring, so that the puncture bayonet is retracted away from the tire, thereby preventing the puncture rod and the puncture bayonet from touching the ground after the tire loses pressure and falls.

[0023] Preferably, when the air supply pipe is connected to the valve, the linkage pin is adjusted to be aligned with the pin hole, and when the pin holes provided on the active connecting rod and the tire puncture connecting rod are aligned, the reset coil spring is deformed and stores force.

[0024] The beneficial effects of the present invention are as follows: compared with the existing device, the device of the present invention has a simple structure and an ingenious design. By utilizing the air pressure inside the tire to be tested, the tire puncture drive unit is changed to a cylinder drive, the tire internal pressure air supply is creatively used as the power, a single electromagnetic air valve is used as the control, and a remote chip is set to control its switch to achieve control, thereby reducing the laying of various power supplies and air pipes of the test equipment, improving the portability and applicability of the device, and facilitating its storage; secondly, through the setting of the linkage connecting rod, the linkage cylinder, the linkage latch, and the reset coil spring arranged in conjunction, based on its deformation recovery force, at the first time of puncturing the tire, if the tire pressure is reduced or lost, the linkage of the linkage connecting rod and the linkage cylinder is immediately disconnected through the linkage latch, and based on the deformation recovery force of the spring, the tire puncture connecting rod is swung to automatically retract the tire puncture bayonet, thereby avoiding the bayonet from being damaged by impact, without the need for control or program setting delay control, and also avoiding the problem of premature or late retraction operation caused by human factors and program factors.

[0025] The device can be used for safety tests of manually driven and self-driving cars, simulated tire blowout drills and driving training, etc. The tire blowout can be remotely controlled through a control mechanism, and the suddenness and randomness of an actual tire blowout can be well restored. The whole process has a high safety factor and can be used repeatedly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the use state of the tire blowout simulation device according to an embodiment of the present invention.

[0027] Figure 2 Schematic diagram of the structure of a tire burst simulation device according to an embodiment of the present invention.

[0028] In the figure: 1. fixed base; 2. tire puncturing cylinder; 3. active connecting rod; 31. hinge plate; 32. hinge shaft; 33. reset coil spring; 38. tension spring; 5. tire puncturing bayonet; 6. tire puncturing connecting rod; 61. coil spring stop pin; 62. pin hole; 7. linkage cylinder; 73. linkage pin; 74. block; 75. top spring. DETAILED DESCRIPTION

[0029] 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.

[0030] See also Figure 1-2 The tire bursting and puncturing device driven by tire air pressure of the present invention is characterized in that it comprises a device base 1 fixed with a tire hub bolt, a tire puncturing cylinder 2 is fixedly arranged on the device base 1, an active connecting rod 3 is connected to the piston rod of the tire puncturing cylinder 2, one end of the active connecting rod 3 is linked with the piston rod, and the other end thereof is extended and hingedly provided with a hinge plate 31, and the hinge plate 31 is hingedly provided with the device base 1 through a rotating shaft;

[0031] The tire puncturing connecting rod 6 is provided with a tire puncturing bayonet 5 at one end, a hinge shaft 32 is fixedly provided on the active connecting rod 3, the hinge shaft 32 is hingedly provided with the tire puncturing connecting rod 6, a reset coil spring 33 is provided at the exposed part of the hinge shaft 32 which passes through the tire puncturing connecting rod 6, one end of the reset coil spring 33 is fixed with the hinge shaft 32, and the other end is against the coil spring stop pin 61 fixedly provided on the tire puncturing connecting rod 6;

[0032] It also includes a linkage cylinder 7 fixedly arranged on the active connecting rod 3, and the linkage cylinder 7 also includes a linkage pin 73. The active connecting rod 3 and the tire puncturing connecting rod 6 are both provided with a pin hole 62 for the linkage pin 73. The linkage pin 73 can penetrate the pin holes 62 of the active connecting rod 3 and the tire puncturing connecting rod 6, and is used to link the active connecting rod 3 and the tire puncturing connecting rod 6, so that the two are driven by the tire puncturing cylinder 2 to swing simultaneously.

[0033] As a further configuration of the above solution, a tension spring 38 for resetting the active connecting rod 3 is further provided on the active connecting rod 3 , and one end of the active connecting rod 3 is kept in contact with the piston rod under the action of the tension spring 38 .

[0034] As a further configuration of the above scheme, a stopper 74 and a top spring 75 are fixedly provided on the linkage pin 73. The top spring 75 is sleeved on the linkage pin 73, and its two ends are respectively against the stopper 74 and the active connecting rod 3, so as to elastically drive the linkage pin 73 to move in the direction of the linkage cylinder 7.

[0035] As a further arrangement of the above scheme, the air supply pipe of the tire puncturing cylinder 2 is connected to the valve arrangement of the tire, and an electromagnetic air valve is arranged on the air supply pipe. The electromagnetic air valve is used to control the air pressure inside the tire to drive the air supply of the telescopic piston rod of the tire puncturing cylinder 2, so as to control the tire puncturing cylinder 2 to perform the tire puncturing operation.

[0036] As a further arrangement of the above scheme, the air supply pipe of the linkage cylinder 2 is connected between the electromagnetic valve and the tire valve. When the valve is connected to the air supply pipe, the linkage pin 73 of the linkage cylinder 2 is driven to plug into the pin hole 62 to keep the active connecting rod 3 and the tire puncturing connecting rod 6 moving at the same time.

[0037] As a further configuration of the above solution, the solenoid valve is provided with a wireless chip, and the wireless chip is used to connect to a remote device to control the switch of the solenoid valve.

[0038] Embodiment: A tire pressure driven simulated tire burst method, characterized in that it comprises:

[0039] S1: Align the reserved hole on the device base 1 with the fixing hole on the side of the tire, and then fix the two together with bolts;

[0040] S2: Connect the air supply pipes of the tire puncture cylinder 2 and the linkage cylinder 7 to the tire valve. At this time, the electromagnetic valve is normally closed, and the corresponding tire puncture cylinder 2 is in a depressurized state without power. At this time, the piston rod retracts the tire puncture cylinder 2;

[0041] S3: When the connection of S2 is achieved, the air supply pipe of the linkage cylinder 7 is connected with the air in the tire, and driven by the air pressure in the tire, the linkage pin 73 facing the pin hole 62 extends to simultaneously penetrate and connect the active link 3 and the puncture link 6, so that the active link 3 and the puncture link 6 are penetrated by the linkage cylinder 7, and the linkage swing of the two is realized;

[0042] S4: At this time, after the tester controls the electromagnetic valve to open through the remote device, the air pressure in the tire will enter the tire puncturing cylinder 2 through the air supply pipe to drive its piston rod to extend and lift the active connecting rod 3, and the active connecting rod 3 swings relative to the tire based on the hinge plate 31;

[0043] S5: The active link 3 swings, and the tire-puncturing link 6 linked with it and located at the other end thereof swings accordingly, and the tire-puncturing bayonet 5 is driven by it to puncture the tire, thereby puncturing the tire;

[0044] S6: After the tire is punctured by the puncture bayonet 5, the pressure-loss linkage cylinder 7 in the tire loses its driving force, and the linkage pin 73 is subjected to the elastic force of the top spring 75, thereby releasing the linkage between the active link 3 and the puncture link 6;

[0045] S7: The puncture rod 6 swings back relative to the tire based on the elastic force of the return coil spring 33, so that the puncture bayonet 5 is retracted away from the tire to prevent the puncture rod 6 and the puncture bayonet from touching the ground after the tire loses pressure and falls.

[0046] Preferably, when the air supply pipe is connected to the valve, the linkage latch 73 is adjusted to align with the latch hole 62. When the latch holes 62 provided on the active connecting rod 3 and the tire puncturing connecting rod 6 are aligned, the reset coil spring 33 is deformed to store force.

[0047] Working principle: The device of the present invention is mainly aimed at improving the device for simulating tire blowout test. Compared with the existing device, it is designed to drive the cylinder to move by the tire internal pressure. After the tire blowout occurs, no additional sensing equipment is required, and the signal of successful tire blowout can be fed back to the cylinder immediately, and the driving force on the cylinder of the device is automatically released, so as to perfectly realize the problem of recovering vulnerable parts:

[0048] The device of the present invention comprises a device base 1 which can be fixed on a tire hub, an active connecting rod 3 is hinged on the device base 1, one end of the active connecting rod 3 is provided with a tire puncturing cylinder 2 which drives it to swing unilaterally relative to the device base 1 along the hinge, the air supply of the tire puncturing cylinder 2 is supplied by the air pressure in the tire, when the electromagnetic air valve provided on the air supply air pipe is opened, the tire puncturing cylinder 2 is actuated, and the tire puncturing connecting rod 6 linked with the active connecting rod 3 is driven to swing, so that the tire puncturing bayonet 5 fixed at one end of the tire puncturing connecting rod 6 punctures the tire, simulating a tire blowout state;

[0049] Furthermore, the air supply of the linkage cylinder 7 fixed on the active connecting rod 3 of the present invention is also supplied by the air pressure inside the tire, and its air intake is located at the front end of the electromagnetic valve, that is, when the air supply pipe is connected to the valve, the linkage cylinder 7 takes effect, and the tire puncture connecting rod 6 and the active connecting rod 3 are linked;

[0050] When the simulated tire puncture is successful, the pressure-loss linkage cylinder 7 in the tire loses power instantly, and the linkage pin 73 fixed to the piston is quickly separated from the pin hole 62 based on the elastic force of the top spring 75, thereby releasing the through linkage between the tire-puncturing connecting rod 6 and the active connecting rod 3. The tire-puncturing connecting rod 6 is in the working state of the tire-puncturing bayonet 5. At this time, the reset coil spring 33 in the deformation and force storage state recovers its deformation, and at the same time, the tire-puncturing connecting rod 6 and the tire-puncturing bayonet 5 are quickly lifted away from the tire, thereby avoiding the problem in the prior art that the tire-puncturing bayonet 5 is too deep or not retracted in time and is damaged by the impact of the tire that continues to rotate;

[0051] When the linkage cylinder 7 loses pressure, the puncture cylinder 2 also loses the tire internal pressure supply, that is, the piston rod loses power, and the active connecting rod 3 is reset to the original state under the action of the tension spring 38, completing the whole set of tire puncture simulation.

[0052] Compared with the existing device, the device of the present invention has a simple structure and ingenious design. By utilizing the air pressure inside the tire to be tested, the tire puncture drive unit is changed into a cylinder drive, the tire internal pressure air supply is creatively used as the power, a single electromagnetic air valve is used as the control, and a remote chip is set to control its switch to achieve control, thereby reducing the laying of various power supplies and air pipes of the test equipment, improving the portability and applicability of the device, and facilitating its storage; secondly, through the setting of the linkage connecting rod, the linkage cylinder, the linkage latch, and the reset coil spring arranged in conjunction, based on its deformation recovery force, at the first time of puncturing the tire, if the tire pressure is reduced or lost, the linkage of the linkage connecting rod and the linkage cylinder is immediately disconnected through the linkage latch, and based on the deformation recovery force of the spring, the tire puncture connecting rod is swung to automatically retract the tire puncture bayonet, thereby avoiding the bayonet from being damaged by impact, and there is no need to think about the control or program setting delay control, and also avoids the problem of premature or late retraction operation caused by human factors and program factors.

[0053] The device can be used for safety tests of manually driven and self-driving cars, simulated tire blowout drills and driving training, etc. The tire blowout can be remotely controlled through a control mechanism, and the suddenness and randomness of an actual tire blowout can be well restored. The whole process has a high safety factor and can be used repeatedly.

[0054] 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. A simulated tire burst device driven by tire pressure, characterized in that: The invention comprises a device base (1) fixed with a tire hub bolt, a tire puncturing cylinder (2) fixedly arranged on the device base (1), an active connecting rod (3) connected to the piston rod of the tire puncturing cylinder (2), one end of the active connecting rod (3) being linked with the piston rod, and the other end thereof extending and hingedly arranged with a hinge plate (31), and the hinge plate (31) and the device base (1) being hingedly arranged via a rotating shaft; It also includes a tire puncturing link (6) having a tire puncturing bayonet (5) at one end, a hinge shaft (32) fixedly provided on the active link (3), the hinge shaft (32) being hingedly provided with the tire puncturing link (6), a reset coil spring (33) being provided on the exposed portion of the hinge shaft (32) penetrating the tire puncturing link (6), one end of the reset coil spring (33) being fixed to the hinge shaft (32), and the other end being abutted against a coil spring stop pin (61) fixedly provided on the tire puncturing link (6); It also includes a linkage cylinder (7) fixedly arranged on the active connecting rod (3), the linkage cylinder (7) also includes a linkage latch (73), the active connecting rod (3) and the tire puncturing connecting rod (6) are both provided with a latch hole (62) for the linkage latch (73), the linkage latch (73) can penetrate the latch holes (62) of the active connecting rod (3) and the tire puncturing connecting rod (6), and is used to link the active connecting rod (3) and the tire puncturing connecting rod (6), so that the two are driven by the tire puncturing cylinder (2) to swing simultaneously; The linkage latch (73) is also fixedly provided with a block (74) and a top spring (75). The top spring (75) is sleeved on the linkage latch (73), and its two ends are respectively against the block (74) and the active connecting rod (3) for elastically driving the linkage latch (73) to move in the direction of the linkage cylinder (7). The air supply pipe of the tire puncturing cylinder (2) is connected to the tire valve. The air supply pipe is provided with an electromagnetic valve. The electromagnetic valve is used to control the air pressure in the tire to drive the air supply of the telescopic piston rod of the tire puncturing cylinder (2) and to control the tire puncturing cylinder (2) to perform a tire puncturing operation. The air supply pipe of the linkage cylinder (7) is connected between the electromagnetic valve and the tire valve. When the valve is connected to the air supply pipe, the linkage latch (73) of the linkage cylinder (7) is driven to plug the latch hole (62) to keep the active connecting rod (3) and the tire puncturing connecting rod (6) moving simultaneously.

2. The simulated tire bursting and puncturing device driven by tire air pressure according to claim 1, characterized in that: The active connecting rod (3) is also provided with a tension spring (38) for resetting the active connecting rod (3), and one end of the active connecting rod (3) is kept in contact with the piston rod under the action of the tension spring (38).

3. The simulated tire bursting and puncturing device driven by tire pressure according to claim 1, characterized in that: The solenoid valve is provided with a wireless chip, and the wireless chip is used to connect to a remote device to control the switch of the solenoid valve.

4. A method for simulating tire burst and tire rupture device driven by tire pressure according to claim 1, characterized in that: include: S1: Align the reserved hole on the device base (1) with the fixing hole on the side of the tire, and then fix the two together with bolts; S2: Connect the air supply pipes of the tire puncturing cylinder (2) and the linkage cylinder (7) to the tire valve. At this time, the electromagnetic valve is normally closed, and the corresponding tire puncturing cylinder (2) is in a depressurized state and has no power. At this time, the piston rod retracts into the tire puncturing cylinder (2); S3: When the connection of S2 is achieved, the air supply pipe of the linkage cylinder (7) is connected to the air in the tire and driven by the air pressure in the tire, the linkage pin (73) facing the pin hole (62) is extended to simultaneously penetrate and connect the active connecting rod (3) and the puncturing connecting rod (6), so that the active connecting rod (3) and the puncturing connecting rod (6) are penetrated by the linkage cylinder (7), and the two are swung in a linkage manner; S4: At this time, after the tester controls the electromagnetic air valve to open through the remote device, the air pressure in the tire will enter the tire puncturing cylinder (2) through the air supply pipe to drive its piston rod to extend and lift the active connecting rod (3), and the active connecting rod (3) will swing relative to the tire based on the hinge plate (31); S5: the active connecting rod (3) swings, and the tire-puncturing connecting rod (6) which is linked with the active connecting rod and located at the other end thereof swings accordingly, and the tire-puncturing bayonet (5) is driven by the active connecting rod to puncture the tire, thereby puncturing the tire; S6: After the tire is punctured by the puncture bayonet (5), the pressure-loss linkage cylinder (7) in the tire loses its driving force, and the linkage pin (73) is subjected to the elastic force of the top spring (75), thereby releasing the linkage between the active connecting rod (3) and the puncture connecting rod (6); S7: The puncture rod (6) swings in the opposite direction relative to the tire based on the elastic force of the return coil spring (33), so that the puncture bayonet (5) is retracted away from the tire, thereby preventing the puncture rod (6) and the puncture bayonet from touching the ground after the tire loses pressure and falls.

5. The method according to claim 4, characterized in that: When the air supply pipe is connected to the air valve, the linkage latch (73) is adjusted to align with the latch hole (62). When the latch holes (62) provided on the active connecting rod (3) and the tire puncturing connecting rod (6) are aligned, the return coil spring (33) is deformed and stores force.

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