A self-triggering flat tire simulation device

Abstract

The present invention discloses a self-triggering flat tire simulation device, which relates to the technical field of vehicle test devices. It includes a fixed disk installed on a wheel hub. On the side of the fixed disk away from the wheel hub, there are a fixed bracket and a spring. The fixed bracket is coaxially arranged with the wheel hub. The top of the fixed bracket is connected with a hanging bracket, and the end of the hanging bracket is hinged with a seesaw. At one end of the seesaw away from the fixed bracket, a puncturer is installed, and the puncturer is within the range of the tire. At the bottom of the end of the seesaw close to the fixed bracket, it abuts against the top of the spring; in the middle of the fixed bracket, there is a sliding hole parallel to the fixed disk, and a sliding rod is slidably arranged in the sliding hole. At one end of the sliding rod close to the seesaw, there is a limiting plate, and the limiting plate is on the top of the spring, and the bottom of the limiting plate abuts against the top of the seesaw; at the end of the sliding rod away from the seesaw, there is a counterweight ball. The present invention utilizes centrifugal force to achieve a self-triggering effect, improves the suddenness and randomness of a flat tire, does not require manual remote control triggering, and the whole adopts a mechanical structure without wiring.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle test devices, and particularly to a self-triggering flat tire simulation device. Background Art

[0002] As the only part of a vehicle in contact with the road surface, the importance of a tire is self-evident. During the use of a vehicle, flat tire accidents frequently occur due to reasons such as tire aging, abnormal tire pressure, and external damage. According to authoritative statistics: Currently, 46% of traffic accidents occurring on highways in China are caused by tire failures, and flat tires alone account for more than 70% of the total number of tire accidents. Therefore, the phenomenon of flat tires in high-speed vehicles and its impact on vehicle handling stability and countermeasures are issues that relevant scholars and enterprises have to face.

[0003] In the prior art, flat tire simulation experiments are mainly achieved by the following methods: One is to arrange a device for puncturing the tire on the vehicle traveling road. Such flat tire devices are easily remembered by drivers for their placement positions, thus reducing the suddenness and randomness of flat tires; the second is to use the explosion of a detonator to achieve rapid deflation of the tire; the third is to use a solenoid valve to control a rapid deflation device to achieve rapid deflation of the tire; the fourth is to use a mechanical puncturing device to achieve rapid deflation of the tire. Although these three types of flat tire devices, namely detonators, solenoid valves, and mechanical puncturing devices, can improve the suddenness and randomness of flat tires, they still need to be remotely triggered manually, with strong subjectivity, and these three types of flat tire devices require circuit layout on the tire, and the circuit layout is difficult. Summary of the Invention

[0004] The main object of the present invention is to provide a self-triggering flat tire simulation device to solve the above problems.

[0005] To achieve the above object, the present invention provides a self-triggering flat tire simulation device, including a fixed disk installed on a wheel hub. A fixed bracket and a spring are provided on a side of the fixed disk away from the wheel hub. The fixed bracket is coaxially arranged with the wheel hub. A hanging bracket is connected to the top of the fixed bracket. A tipping plate is hinged to the end of the hanging bracket. A puncturing device is installed at an end of the tipping plate away from the fixed bracket. The puncturing device is within the range of the tire. The bottom of an end of the tipping plate close to the fixed bracket abuts against the top of the spring. A sliding hole parallel to the fixed disk is provided in the middle of the fixed bracket. A sliding rod is slidably arranged in the sliding hole. A limiting plate is provided at an end of the sliding rod close to the tipping plate. The limiting plate is on the top of the spring, and the bottom of the limiting plate abuts against the top of the tipping plate. A counterweight ball is provided at an end of the sliding rod away from the tipping plate.

[0006] Further, both the fixed bracket and the hanging bracket are L-shaped. The fixed bracket and the hanging bracket form a portal structure. A groove that opens to the top and one side is provided at the top of the fixed bracket. One end of the hanging bracket is located in the groove and is hinged to the fixed bracket. A through groove is provided at the top of the hanging bracket. The limiting plate is inserted into the through groove. A rotating roller is provided in the through groove. Long holes are symmetrically provided on both sides of the through groove. Guide grooves are symmetrically provided on both sides of the groove of the fixed bracket. The guide groove is composed of a horizontal groove and an inclined groove. A part of the horizontal groove coincides with the long hole. The roller shaft of the rotating roller extends into the long hole and the guide groove.

[0007] Further, a limiting protrusion is provided at a position near the outlet of the guide groove at the top of the fixed bracket.

[0008] Further, support plates are provided at both the top and the bottom of the spring.

[0009] Further, the puncturing device includes a puncturing rod and a puncturing head, and the puncturing head is screwed to the puncturing rod.

[0010] Further, both ends of the sliding rod are screwed to the limiting plate and the counterweight ball respectively.

[0011] The present invention has the following beneficial effects:

[0012] The present invention utilizes centrifugal force to achieve a self-triggering effect, improving the suddenness and randomness of tire bursting. It does not require manual remote control triggering. The overall structure is mechanical and does not require wiring. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the overall schematic diagram of a self-triggering tire bursting simulation device of the present invention.

[0014] Figure 2 It is the partial cross-sectional view of a self-triggering tire bursting simulation device of the present invention.

[0015] Figure 3 It is the top view of a self-triggering tire bursting simulation device of the present invention.

[0016] Among them, 1 - tire; 2 - wheel hub; 3 - fixed disk; 4 - fixed bracket; 5 - counterweight ball; 6 - sliding rod; 7 - limiting plate; 8 - hanging bracket; 9 - seesaw; 10 - puncturing device; 11 - spring; 12 - support plate; 41 - groove; 42 - guide groove; 43 - sliding hole; 44 - limiting protrusion; 81 - through groove; 82 - rotating roller; 83 - long hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] To achieve the above-mentioned purpose and effect, the technical means and structure adopted by the present invention will be described in detail in combination with the drawings for the preferred embodiments of the present invention to illustrate their features and functions.

[0018] AsFigures 1-3 As shown, the present invention provides a self-triggered tire blowout simulation device, comprising a fixed plate 3 installed on a wheel hub 2, a fixed bracket 4 and a spring 11 are arranged on the side of the fixed plate 3 away from the wheel hub 2, the fixed bracket 4 is coaxially arranged with the wheel hub 2, a hanger 8 is connected to the top of the fixed bracket 4, a seesaw 9 is hinged at the end of the hanger 8, a puncturer 10 is installed at the end of the seesaw 9 away from the fixed bracket 4, the puncturer 10 is located within the range of the tire 1, and the bottom of the end of the seesaw 9 close to the fixed bracket 4 abuts against the top of the spring 11; a sliding hole 43 parallel to the fixed plate 3 is arranged in the middle of the fixed bracket 4, a sliding rod 6 is slidably arranged in the sliding hole 43, a limiting plate 7 is arranged at the end of the slide rod 6 close to the seesaw 9, the limiting plate 7 is located at the top of the spring 11, and the bottom of the limiting plate 7 abuts against the top of the seesaw 9; a counterweight ball 5 is arranged at the end of the slide rod 6 away from the seesaw 9. After the car starts, as the wheel speed increases, the centrifugal force gradually increases. Under the action of the centrifugal force, the weighted ball 5 generates a pulling force on the slide bar 6. When the pulling force overcomes the friction force, the slide bar 6 moves toward the direction of the weighted ball 5, thereby causing the slide bar 6 to separate from the top of the seesaw 9. One end of the seesaw 9 is quickly lifted up under the elastic force of the spring 11, thereby causing the puncturer 10 at the other end to quickly descend, puncture the tire 1, and achieve rapid deflation of the tire 1.

[0019] In another embodiment, the fixed bracket 4 and the hanger 8 are both L-shaped, and the fixed bracket 4 and the hanger 8 form a door-shaped structure. The top of the fixed bracket 4 is provided with a groove 41 opening to the top and one side, and one end of the hanger 8 is located in the groove 41 and is hinged to the fixed bracket 4; the top of the hanger 8 is provided with a through groove 81, and the limiting plate 7 is inserted in the through groove 81. A rotating roller 82 is provided in the through groove 81, and long holes 83 are symmetrically provided on both sides of the through groove 81. Guide grooves 42 are symmetrically provided on both sides of the groove 41 of the fixed bracket 4, and the guide grooves 42 are composed of a horizontal groove and an inclined groove, and the horizontal groove overlaps with a part of the long hole 83, and the roller shaft of the rotating roller 82 extends into the long hole 83 and the guide groove 42. When the slide bar 6 is separated from the top of the rocker plate 9, the slide bar 6 pulls the limit plate 7 to contact the rotating roller 82, and the rotating roller 82 first moves along the horizontal groove for a distance to allow the spring 11 to have enough release time, so that the puncturer 10 can complete the puncturing work, and then the rotating roller 82 moves along the inclined groove, so that the hanger 8 rotates upward, and the hanger 8 drives the puncturer 10 to separate from the tire 1 and enter the area inside the wheel hub 2, so as to avoid the device from contacting with the ground and being damaged after the tire bursts.

[0020] In another embodiment, a limiting protrusion 44 is provided at the top of the fixed bracket 4 near the outlet of the guiding groove 42. After the rotating roller 82 disengages from the guiding groove 42, the rotating roller 82 falls on the top of the fixed bracket 4. When the vehicle decelerates and the centrifugal force is insufficient, the limiting plate 7 cannot provide a stable thrust, and the limiting protrusion 44 prevents the rotating roller 82 from entering the guiding groove 42 again.

[0021] In another embodiment, support plates 12 are provided at both the top and bottom of the spring 11 to facilitate installation and cooperation with the rocker 9.

[0022] In another embodiment, the puncturer 10 includes a puncturing rod and a puncturing head, and the puncturing head is screwed to the puncturing rod to facilitate replacement of puncturing heads of different models.

[0023] In another embodiment, both ends of the sliding rod 6 are screwed to the limiting plate 7 and the counterweight ball 5 respectively to facilitate installation and disassembly. Preferably, multiple weight models of the counterweight ball 5 can be configured to facilitate application to different speed tire burst simulation tests.

[0024] The above are only the preferred embodiments of the present invention, not all embodiments. Anyone should know that structural changes made under the inspiration of the present invention, as long as they have the same or similar technical solutions as the present invention, fall within the protection scope of the present invention.

Claims

1. A self-triggering tire blowout simulation device, characterized in that: The invention comprises a fixed plate installed on the wheel hub, a fixed bracket and a spring are arranged on a side of the fixed plate away from the wheel hub, the fixed bracket is coaxially arranged with the wheel hub, a hanger is connected to the top of the fixed bracket, a seesaw is hinged at the end of the hanger, a puncturer is installed at the end of the seesaw away from the fixed bracket, the puncturer is located within the tire range, and the bottom of the end of the seesaw close to the fixed bracket abuts against the top of the spring; a sliding hole parallel to the fixed plate is arranged in the middle of the fixed bracket, a sliding rod is slidably arranged in the sliding hole, a limiting plate is arranged at the end of the sliding rod close to the seesaw, the limiting plate is located at the top of the spring, and the bottom of the limiting plate abuts against the top of the seesaw; a counterweight ball is arranged at the end of the sliding rod away from the seesaw; The fixed bracket and the hanger are both L-shaped, and the fixed bracket and the hanger form a door-shaped structure. The top of the fixed bracket is provided with a groove that opens to the top and one side, and one end of the hanger is located in the groove and is hinged to the fixed bracket; the top of the hanger is provided with a through groove, and the limit plate is inserted in the through groove, and a rotating roller is provided in the through groove, and long holes are symmetrically provided on both sides of the through groove, and guide grooves are symmetrically provided on both sides of the groove of the fixed bracket, and the guide grooves are composed of horizontal grooves and oblique grooves, and the horizontal grooves overlap with a part of the long holes, and the roller shaft of the rotating roller extends into the long holes and the guide grooves; A limiting protrusion is arranged on the top of the fixing bracket near the exit of the guide groove.

2. A self-trigger tire blowout simulation device as claimed in claim 1, characterized in that: The top and bottom of the spring are both provided with support plates.

3. A self-trigger tire blowout simulation device as claimed in claim 1, characterized in that: The puncture device comprises a puncture rod and a puncture head, and the puncture head is threadedly connected to the puncture rod.

4. A self-trigger tire blowout simulation device as claimed in claim 1, characterized in that: The two ends of the slide rod are respectively screwed to the limit plate and the counterweight ball.

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