Tire burst test device and tire burst test system

Abstract

The present invention discloses a tire burst test device, comprising a base and a blade, wherein the blade comprises a spike portion, a blade portion and a blunt portion, and the tire burst test device further comprises a rotating shaft, an energy storage member, a blade locking assembly, an unlocking assembly and a limiting assembly, wherein the rotating shaft is rotatably mounted on the base, the blade is mounted on the rotating shaft, the energy storage member is mounted on the rotating shaft and connected to the blade, the blade locking assembly is used to lock the blade, the unlocking assembly is used to trigger the blade locking assembly to unlock the blade, the blade rotates and pierces the tire under the action of the energy storage member after being unlocked, and the limiting assembly is used to limit the angle of the blade after rotation. The present invention also discloses a tire burst test system. The present invention pierces the tire through the spike portion, which facilitates the subsequent slicing of the tire by the blade portion. After the blade portion subsequently cuts the tire to a certain length, the blade rotates to the blunt portion corresponding to the tire and separates from the tire, so as to prevent the blade from cutting the tire for too long and causing the tire to be unhooked. The tire burst test device in the present invention can meet the current standards and improve the test efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of testing equipment, and in particular to a tire blowout test device and a tire blowout test system. Background Art

[0002] Tire blowout accidents are accidents with a high mortality rate. The state has formulated standards for corresponding emergency devices for tire blowouts for commercial vehicles and passenger buses, and some standards have specific requirements for simulated tire blowouts. Although there are no national standards for M1 and N1 small cars, domestic car companies are actively researching passive safety measures that meet the performance requirements of vehicles after tire blowouts in GB / T 38796-2020 "Performance Requirements and Test Methods for Emergency Safety Devices for Automobile Tire Blowouts".

[0003] Referring to the vehicle performance test requirements of GB / T 38796-2020, in addition to the straight-line driving tire blowout test, it also includes curve driving tire blowout test and lane change driving tire blowout test, and it is necessary to develop a wheel-following tire blowout device.

[0004] There are four common ways to simulate tire blowouts: explosives, nail guns, quick deflation, and platform. According to test experience, all four of the above tire blowout methods have some defects, including damage to the road surface, difficulty in cleaning the site after a blowout, and slow deflation. The quick deflation method has a long test preparation time, is inconsistent with the actual blowout situation, and has high requirements for air tightness, which no longer meets the current standards for simulated tire blowouts; the platform type cannot blow out tires on curves and has high requirements for the driver's precise driving.

[0005] Therefore, there is a need for a tire blowout test device and a tire blowout test system that can meet current standards and improve test efficiency. Summary of the invention

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a tire blowout test device and a tire blowout test system that can meet current standards and improve test efficiency.

[0007] The technical solution of the present invention provides a tire blowout test device, comprising a base and a blade, wherein the blade comprises a spike portion, a blade edge portion and a blunt portion, and further comprises a rotating shaft, an energy storage member, a blade locking assembly, an unlocking assembly and a limiting assembly, wherein the rotating shaft is rotatably mounted on the base, the blade is mounted on the rotating shaft, the energy storage member is mounted on the rotating shaft and connected to the blade, the blade locking assembly is used to lock the blade, the unlocking assembly is used to trigger the blade locking assembly to unlock the blade, and after the blade is unlocked, it rotates under the action of the energy storage member and pierces the tire, and the limiting assembly is used to limit the angle of the blade after rotation;

[0008] The tire blowout test device at least includes an energy storage state, a puncture state, a cutting state and a separation state:

[0009] In the energy storage state, the blade is not in contact with the tire, the blade locking assembly locks the blade, and the energy storage member stores energy;

[0010] In the puncturing state, the unlocking assembly triggers the blade locking assembly to unlock the blade, and the energy storage member drives the blade to rotate until the spike portion faces and pierces the tire;

[0011] In the cutting state, the blade rotates so that the blade portion faces the tire and cuts the tire;

[0012] In the separated state, the blade rotates until the blunt portion faces the tire, and the blade is separated from the tire, and the limiting assembly restricts the blade from continuing to rotate.

[0013] Furthermore, the spike portion, the blade edge portion and the blunt portion are sequentially arranged on the blade, and the rotation center of the blade is arranged at the blunt portion.

[0014] Further, the blade locking assembly includes a first locking rod, a second locking rod, a pawl and a ratchet;

[0015] The first locking rod and the second locking rod are rotatably mounted on the base, the second locking rod is fixedly connected to the pawl, and the ratchet is fixedly connected to the rotating shaft;

[0016] In the energy storage state, the first locking rod is locked with the second locking rod, the pawl locks the ratchet, and the ratchet locks the blade;

[0017] In the puncturing state, the unlocking assembly drives the first locking rod to separate from the second locking rod, and the second locking rod drives the pawl to separate from the ratchet wheel, and the ratchet wheel rotates together with the blade.

[0018] Further, the limit assembly includes a limit platform, and the ratchet includes a toothed portion and a toothless portion, the toothed portion cooperates with the pawl, and when the ratchet rotates to the point where the toothless portion corresponds to the limit platform, the toothless portion does not contact the limit platform, and when the ratchet rotates to the point where the toothed portion corresponds to the limit platform, the limit platform conflicts with the toothed portion.

[0019] Furthermore, the energy storage component is a torsion spring, one end of the torsion spring is fixedly connected to the rotating shaft, and the other end of the torsion spring is fixedly connected to the limit platform.

[0020] Furthermore, the unlocking assembly includes an electromagnetic coil and a telescopic rod, the electromagnetic coil is used to drive the telescopic rod to perform telescopic movement, and the telescopic rod is used to drive the first locking rod.

[0021] The present invention also provides a tire blowout test system, comprising any one of the tire blowout test devices described above, and also comprising an adapter frame, one end of the adapter frame is connected to the base, and the other end of the adapter frame is connected to the vehicle frame.

[0022] Furthermore, the other end of the adapter frame is connected to the horn of the frame.

[0023] Furthermore, the adapter frame includes a bearing member and a frame connecting member, the bearing member includes a rectangular flat plate, a diagonal support plate and an extension plate, the rectangular flat plate is used to be connected to the base, the rectangular flat plate and the extension plate are perpendicular to each other, the diagonal support plate is connected between the rectangular flat plate and the extension plate, and the extension plate is also connected to the frame connecting member.

[0024] Furthermore, the frame connector includes a first connecting plate, a second connecting plate and a mounting plate, the mounting plate is connected to the extension plate, the first connecting plate and the second connecting plate are mounted on the mounting plate, and the first connecting plate and the second connecting plate are used to be connected to the horns of the frame.

[0025] After adopting the above technical solution, the following beneficial effects are achieved:

[0026] The present invention punctures the tire through the spike part, which is convenient for the blade part to subsequently cut the tire. After the blade part cuts the tire to a certain length, the blade rotates to the blunt part corresponding to the tire and separates from the tire, preventing the blade from cutting the tire too long and causing the tire to fall off the ring. The tire burst test device in the present invention can meet the current standards and improve the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The disclosure of the present invention will become more easily understood with reference to the accompanying drawings. It should be understood that these drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the drawings:

[0028] Figure 1 is a three-dimensional diagram of a tire burst test device from one perspective in one embodiment of the present invention;

[0029] Figure 2 is a stereoscopic diagram of a tire burst test device from another perspective in one embodiment of the present invention;

[0030] Figure 3 is an exploded view of a tire blowout test device according to an embodiment of the present invention;

[0031] Figure 4is a schematic diagram of the energy storage state of the tire burst test device in one embodiment of the present invention;

[0032] Figure 5 is a schematic diagram of a punctured state of a tire blowout test device according to an embodiment of the present invention;

[0033] Figure 6 is a schematic diagram of a tire blowout test device in a cut state in one embodiment of the present invention;

[0034] Figure 7 is a schematic diagram of a separated state of a tire blowout test device in one embodiment of the present invention;

[0035] Figure 8 is a three-dimensional diagram of an energy storage state of a tire blowout test device in one embodiment of the present invention;

[0036] Fig. 9 is a three-dimensional diagram of the classification state of a tire burst test device in one embodiment of the present invention;

[0037] Fig.10 is a three-dimensional diagram of an adapter frame from one perspective in one embodiment of the present invention;

[0038] Fig.11 It is a three-dimensional diagram of the adapter frame from another perspective in one embodiment of the present invention.

[0039] Reference table of reference numerals:

[0040] Base 1, rotating shaft 3, energy storage member 4;

[0041] Blade 2: spike portion 21, blade portion 22, blunt portion 23;

[0042] Blade locking assembly 5: first locking rod 51, second locking rod 52, pawl 53, ratchet 54, first fixed shaft 55, second fixed shaft 56, limiting rod 57, toothed portion 541, non-toothed portion 542;

[0043] Unlocking component 6: electromagnetic coil 61, telescopic rod 62

[0044] Limiting component 7: slot 71

[0045] Adapter frame 8: bearing member 81, frame connecting member 82, rectangular flat plate 811, diagonal support plate 812, extension plate 813, first connecting plate 821, second connecting plate 822, mounting plate 823;

[0046] Tire 10. DETAILED DESCRIPTION

[0047] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0048] It is easy to understand that according to the technical solution of the present invention, without changing the essential spirit of the present invention, a variety of structural modes and implementation modes that can be replaced by those skilled in the art can be replaced with each other. Therefore, the following specific implementation modes and drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as the whole of the present invention or as a limitation or restriction to the technical solution of the invention.

[0049] The directional terms such as up, down, left, right, front, back, front, back, top, bottom, etc. mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings. They are relative concepts and may change accordingly according to different positions and different usage conditions. Therefore, these or other directional terms should not be interpreted as restrictive terms.

[0050] In some embodiments of the present invention, Figure 1 As shown, the tire burst test device includes a base 1 and a blade 2, the blade 2 includes a spike portion 21, a blade edge portion 22 and a blunt portion 23, the tire burst test device also includes a rotating shaft 3, an energy storage member 4, a blade locking assembly 5, an unlocking assembly 6 and a limiting assembly 7, the rotating shaft 3 is rotatably mounted on the base 1, the blade 2 is mounted on the rotating shaft 3, the energy storage member 4 is mounted on the rotating shaft 3 and connected to the blade 2, the blade locking assembly 5 is used to lock the blade 2, the unlocking assembly 6 is used to trigger the blade locking assembly 5 to unlock the blade 2, and after the blade 2 is unlocked, it rotates under the action of the energy storage member 4 and pierces the tire, and the limiting assembly 7 is used to limit the angle of the blade 2 after rotation;

[0051] The tire burst test device includes at least energy storage state, puncture state, cutting state and separation state:

[0052] In the energy storage state, the blade 2 is not in contact with the tire, the blade locking assembly 5 locks the blade 2, and the energy storage member 4 stores energy;

[0053] In the puncturing state, the unlocking assembly 6 triggers the blade locking assembly 5 to unlock the blade 2, and the energy storage member 4 drives the blade 2 to rotate until the spike portion 21 faces and pierces the tire;

[0054] In the cutting state, the blade 2 rotates so that the blade portion 22 faces the tire and cuts the tire;

[0055] In the separated state, the blade 2 rotates until the blunt portion 23 faces the tire, and the blade 2 is separated from the tire, and the limiting assembly 7 limits the blade 2 from continuing to rotate.

[0056] Specifically, Figure 1 As shown, the base 1 is a roughly rectangular base, and the blade 2, the rotating shaft 3, the energy storage member 4, the blade locking assembly 5, the unlocking assembly 6 and the limiting assembly 7 are all installed on the base 1. The base 1 is used to connect with the frame so that the blade 2 is located near the tire to be tested.

[0057] like Figure 3 As shown, the rotating shaft 3 is rotatably connected to the base 1 , the blade 2 is fixedly connected to the rotating shaft 3 , and the blade 2 and the rotating shaft 3 can rotate together relative to the base 1 .

[0058] like Figure 1 As shown, the blade 2 includes a spike portion 21, a blade portion 22 and a blunt portion 23. The spike portion 21 is used to penetrate into the tire before the blade portion 22, so that the blade portion 22 can quickly cut the tire. The blade portion 22 is used to cut the tire to achieve a quick tire blowout. After the blade portion 22 cuts the tire to a certain length, the blade 2 needs to rotate until the blunt portion 23 corresponds to the tire. The blunt portion 23 will not cut the tire, thereby avoiding excessive cutting of the tire by the blade 2 and causing the tire to fall off the tire.

[0059] like Figure 2-3 As shown, the energy storage member 4 is sleeved on the rotating shaft 3 and connected to the blade 2. The energy storage member 4 stores energy when in the energy storage state; when the unlocking assembly 6 triggers the blade locking assembly 5 to unlock the blade 2, the energy storage member 4 drives the blade 2 to rotate, so that the blade 2 performs a series of actions of piercing-cutting-separating.

[0060] like Figure 1 As shown, the blade locking assembly 5 locks the blade 2 and puts the energy storage member 4 in an energy storage state. After the blade locking assembly 5 unlocks the blade 2, the energy storage member 4 drives the blade 2 to rotate.

[0061] like Figure 2 As shown, the unlocking assembly 6 is connected to the blade locking assembly 5 and is used to trigger the unlocking of the blade locking assembly 5 .

[0062] like Figure 3 As shown, the limiting assembly 7 is used to limit the maximum rotation angle of the blade 2 so that the blunt portion 23 of the blade 2 faces the tire, thereby avoiding the risk of the tire coming off the ring due to the random rotation of the blade 2.

[0063] In this embodiment, the specific working process of the tire blowout test device is as follows:

[0064] like Figure 4 As shown, in the energy storage state, the blade locking assembly 5 locks the blade 2 , and the energy storage member 4 stores energy. At this time, the spike portion 21 of the blade 2 faces the tire 10 , but does not contact the tire 10 .

[0065] like Figure 5 As shown, in the puncture state: the unlocking component 6 triggers the blade locking component 5 to unlock the blade 2, and the blade 2 moves along the blade under the action of the energy storage component 4. Figure 5 The thorn portion 21 is rotated clockwise so as to penetrate into the tire 10 .

[0066] like Figure 6As shown, in the cutting state, the blade 2 continues to rotate in the clockwise direction, at which time the blade portion 22 contacts the tire 10, and as the tire 10 rotates, the blade portion 22 cuts the tire 10 by a certain length.

[0067] like Figure 7 As shown, in the separation state, the blade 2 continues to rotate in the clockwise direction, at which time the blunt portion 23 faces the tire 10, and the blade 2 does not contact the tire 10. This prevents the tire 10 from driving the blade 2 to continue rotating during rotation, and the blade 2 continues to cut the tire 10, causing the tire 10 to be unhooked.

[0068] The tire blowout test device in this embodiment will not damage the road surface, nor will it cause difficulty in cleaning the site after the tire blowout. The spike portion 21 first punctures the tire 10, so that the blade portion 22 can quickly cut the tire 10. In addition, the tire blowout test device in this embodiment can be directly installed on the vehicle frame, and does not require too much test preparation time, simulating a real tire blowout situation. In addition, the tire blowout can be achieved on both straight roads and curves, and the requirements on the driver are low.

[0069] Furthermore, if Figure 1 As shown, the blade 2 is provided with a spike portion 21 , a blade edge portion 22 and a blunt portion 23 in sequence, and the rotation center of the blade 2 is provided at the blunt portion 23 .

[0070] After the blade 2 is unlocked and rotated, the spike portion 21 , the blade portion 22 and the blunt portion 23 face the tire 10 in sequence, and the rotation center is set at the blunt portion 23 , which is beneficial to the arrangement of the spike portion 21 and the blade portion 22 .

[0071] The spike portion 21 is triangular in shape. Optionally, the spike portion 21 can also be needle-shaped or cone-shaped.

[0072] The blade portion 22 is polygonal, which facilitates the blade 2 to cut the tire 10 during the rotation process. Optionally, the blade portion 22 can also be arc-shaped.

[0073] The blunt portion 23 has a greater thickness than the blade portion 22 , and a distance between the rotation center of the blade 2 and the blunt portion 23 is smaller than a distance between the rotation center and the blade portion 22 , so that the blunt portion 23 does not interfere with the tire 10 .

[0074] Furthermore, if Figure 2-3 As shown, the blade locking assembly 5 includes a first locking rod 51, a second locking rod 52, a pawl 53 and a ratchet 54;

[0075] The first locking rod 51 and the second locking rod 52 are rotatably mounted on the base 1, the second locking rod 52 is fixedly connected to the pawl 53, and the ratchet 54 is fixedly connected to the rotating shaft 3;

[0076] In the energy storage state, the first locking rod 51 is locked with the second locking rod 52, the pawl 53 locks the ratchet 54, and the ratchet 54 locks the blade 2;

[0077] In the puncturing state, the unlocking assembly 6 drives the first locking rod 51 to separate from the second locking rod 52 , and the second locking rod 52 drives the pawl 53 to separate from the ratchet 54 , and the ratchet 54 rotates together with the blade 2 .

[0078] Specifically, Figure 3 As shown, a first fixed shaft 55 and a second fixed shaft 56 are installed on the base 1 , the first locking rod 51 is rotatably connected to the first fixed shaft 55 , and the second locking rod 52 is rotatably connected to the second fixed shaft 56 .

[0079] like Figure 2 As shown, the first locking rod 51 is locked with the second locking rod 52, and the two are locked. At this time, the pawl 53 keeps the ratchet 54 stationary, and the ratchet 54 is fixedly connected with the rotating shaft 3, so the blade 2 also remains stationary.

[0080] When the unlocking assembly 6 drives the first locking rod 51 along Figure 2 When the first locking rod 51 is rotated counterclockwise, the first locking rod 51 is disengaged from the second locking rod 52. A torsion spring is provided between the second locking rod 52 and the second fixed shaft 56, and the torsion spring drives the second locking rod 52 to rotate counterclockwise. Figure 2 The pawl 53 is rotated clockwise to separate from the ratchet 54. At this time, the energy storage member 4 drives the blade 2, the rotating shaft 3 and the ratchet 54 to rotate together.

[0081] When blade 2 is Figure 7 The separation state needs to be switched back to Figure 4 When the blade 2 is in the energy storage state, the operator can first re-lock the first locking rod 51 and the second locking rod 52, and lock the pawl 53 and the ratchet 54. Then the operator manually drives the blade 2 to rotate in the opposite direction. During the reverse rotation of the blade 2, the ratchet 54 is driven to rotate together. At this time, the pawl 53 does not restrict the reverse rotation of the ratchet 54 until the blade 2 returns to the Figure 4 After the blade 2 is released, the pawl 53 locks the ratchet 54, and the energy storage member 4 is in an energy storage state.

[0082] Preferably, if Figure 2 As shown, a limit rod 57 is installed on the base 1. After the second locking rod 52 is disengaged from the first locking rod 51, the limit rod 57 is used to limit the maximum rotation angle of the second locking rod 52 to prevent the second locking rod 52 from rotating too much.

[0083] Furthermore, if Figure 3As shown, the limit assembly 7 includes a limit platform, and the ratchet 54 includes a toothed portion 541 and a non-toothed portion 542. The toothed portion 541 cooperates with the pawl 53. When the ratchet 54 rotates to the point where the non-toothed portion 542 corresponds to the limit platform, the non-toothed portion 542 does not contact the limit platform. When the ratchet 54 rotates to the point where the toothed portion 541 corresponds to the limit platform, the limit platform conflicts with the toothed portion 541.

[0084] Specifically, the limiting platform is in a right angle shape and is disposed outside the ratchet 54 .

[0085] like Figure 8 As described above, in the energy storage state, the pawl 53 is locked with the ratchet 54, and the toothless portion 542 corresponds to the limit portion 7. When the blade 2 rotates to switch from the energy storage state to the cutting state, the toothless portion 542 does not contact the limit platform, so the limit assembly 7 does not affect the rotation of the blade 2.

[0086] like Fig. 9 As shown, when the blade 2 is switched to the separated state, the toothed portion 541 rotates to conflict with the limit assembly 7, and the limit assembly 7 limits the further rotation of the ratchet 54. At this time, the blunt portion 23 of the blade 2 corresponds to the tire 10 and does not contact the tire 10.

[0087] When the blade 2 rotates in the reverse direction, the blade 2 drives the ratchet 54 to rotate in the reverse direction. At this time, the toothless portion 542 corresponds to the limiting assembly 7 again, and the limiting assembly 7 does not affect the reverse rotation of the ratchet 54.

[0088] Preferably, if Figure 3 As shown, the energy storage member 4 is a torsion spring, one end of which is fixedly connected to the rotating shaft 3, and the other end of which is fixedly connected to the limit platform.

[0089] Specifically, the limiting assembly 7 is provided with a slot 71, the other end of the torsion spring is inserted into the slot 71, and one end of the torsion spring is inserted into the rotating shaft 3. When the blade 2 rotates in the reverse direction, the torsion spring is driven to store energy.

[0090] Furthermore, if Figure 3 As shown, the unlocking assembly 6 includes an electromagnetic coil 61 and a telescopic rod 62 . The electromagnetic coil 61 is used to drive the telescopic rod 62 to perform telescopic movement, and the telescopic rod 62 is used to drive the first locking rod 51 .

[0091] Specifically, when the electromagnetic coil 61 is energized, the electromagnetic coil 61 drives the telescopic rod 62 to retract, and the telescopic rod 62 drives one end of the first locking rod 51 , so that the first locking rod 51 rotates around the first fixed axis 55 , thereby disengaging from the second locking rod 52 .

[0092] When the electromagnetic coil 61 is powered off, the telescopic rod 62 extends, and the telescopic rod 62 drives the first locking rod 51 to reset. The operator manually buckles the first locking rod 51 and the second locking rod 52 together.

[0093] In some other embodiments of the present invention, the tire blowout test system includes the tire blowout test device in any of the above embodiments, and further includes an adapter frame 8, one end of the adapter frame 8 is connected to the base 1, and the other end of the adapter frame 8 is connected to the vehicle frame.

[0094] like Figure 10-11 As shown, the adapter frame 8 is used to install the tire blowout test device on the vehicle frame. Since the tire blowout test device is installed on the vehicle frame, the installation is convenient and efficient, and the wheel side mass is not increased. According to JT / T 782-2020, if the simulation device is installed on the wheel, its mass should not exceed 5% of the wheel mass. The tire blowout test device in this embodiment is connected to the vehicle through the original vehicle holes such as the lower arm, horn, and subframe of the vehicle chassis, without increasing the wheel side mass. The installation time is about 5 minutes. After one use, it can be manually reset and the tire can be replaced. In addition, the faster the vehicle travels, the greater the inertia may be if the equipment is installed on the wheel hub, which will affect the driving. The tire blowout test system in this embodiment can also be used for high-speed tire blowout tests.

[0095] Furthermore, the other end of the adapter frame 8 is connected to the horn of the frame. The existing platform-type tire bursting equipment cannot achieve tire bursting on a curve. The tire bursting test device in this embodiment can achieve tire bursting at any time and any steering angle because it is installed at the horn of the frame.

[0096] Furthermore, if Figure 10-11 As shown, the adapter frame 8 includes a bearing member 81 and a frame connecting member 82. The bearing member 81 includes a rectangular flat plate 811, a diagonal support plate 812 and an extension plate 813. The rectangular flat plate 811 is used to connect with the base 1. The rectangular flat plate 811 and the extension plate 813 are perpendicular to each other. The diagonal support plate 812 is connected between the rectangular flat plate 811 and the extension plate 813. The extension plate 813 is also connected to the frame connecting member 82.

[0097] Furthermore, if Figure 10-11 As shown, the frame connecting member 82 includes a first connecting plate 821, a second connecting plate 822 and a mounting plate 823, the mounting plate 823 is connected to the extension plate 813, the first connecting plate 821 and the second connecting plate 822 are mounted on the mounting plate 823, and the first connecting plate 821 and the second connecting plate 822 are used to connect to the horns of the frame.

[0098] The present invention has the following advantages:

[0099] 1. Easy and efficient installation without increasing the wheel mass;

[0100] 2. The equipment is light and easy to move;

[0101] 3. It can realize tire bursting on curves: Platform-type tire bursting equipment cannot realize tire bursting on curves, but this equipment can realize tire bursting at any time and any steering angle;

[0102] 4. Reproduction of real tire blowout: The device reproduces the real scene of tire blowout, that is, the tire is punctured by a sharp object, and the incision and deflation rate meet the requirements of JT / T 782-2020 and GB / T 38796-2020 for simulated tire blowout;

[0103] 5. The faster the vehicle travels, the greater the inertia may be if the equipment is installed on the wheel hub, which may affect the driving. The present invention can also be applied to tire blowout testing during high-speed driving.

[0104] The above description is only the principle and preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this field, several other modifications can be made based on the principle of the present invention, which should also be considered as the protection scope of the present invention.

Claims

1. A tire blowout test device, comprising a base and a blade, characterized in that: The blade includes a spike portion, a blade edge portion and a blunt portion. The tire burst test device also includes a rotating shaft, an energy storage member, a blade locking assembly, an unlocking assembly and a limiting assembly. The rotating shaft is rotatably mounted on the base, the blade is mounted on the rotating shaft, the energy storage member is mounted on the rotating shaft and connected to the blade, the blade locking assembly is used to lock the blade, the unlocking assembly is used to trigger the blade locking assembly to unlock the blade, and after the blade is unlocked, it rotates under the action of the energy storage member and pierces the tire, and the limiting assembly is used to limit the angle of the blade after rotation; The tire blowout test device at least includes an energy storage state, a puncture state, a cutting state and a separation state: In the energy storage state, the blade is not in contact with the tire, the blade locking assembly locks the blade, and the energy storage member stores energy; In the puncturing state, the unlocking assembly triggers the blade locking assembly to unlock the blade, and the energy storage member drives the blade to rotate until the spike portion faces and pierces the tire; In the cutting state, the blade rotates so that the blade portion faces the tire and cuts the tire; In the separation state, the blade rotates until the blunt portion faces the tire, and the blade is separated from the tire, and the limiting assembly restricts the blade from continuing to rotate; The blade locking assembly includes a first locking rod, a second locking rod, a pawl and a ratchet; The first locking rod and the second locking rod are rotatably mounted on the base, the second locking rod is fixedly connected to the pawl, and the ratchet is fixedly connected to the rotating shaft; In the energy storage state, the first locking rod is locked with the second locking rod, the pawl locks the ratchet, and the ratchet locks the blade; In the puncturing state, the unlocking assembly drives the first locking rod to separate from the second locking rod, and the second locking rod drives the pawl to separate from the ratchet wheel, and the ratchet wheel rotates together with the blade.

2. The tire burst test device according to claim 1, characterized in that: The spike portion, the blade portion and the blunt portion are sequentially arranged on the blade, and the rotation center of the blade is arranged at the blunt portion.

3. The tire burst test device according to claim 1, characterized in that: The limit assembly includes a limit platform, and the ratchet includes a toothed portion and a toothless portion, the toothed portion cooperates with the pawl, and when the ratchet rotates to the point where the toothless portion corresponds to the limit platform, the toothless portion does not contact the limit platform, and when the ratchet rotates to the point where the toothed portion corresponds to the limit platform, the limit platform conflicts with the toothed portion.

4. The tire burst test device according to claim 3, characterized in that: The energy storage component is a torsion spring, one end of the torsion spring is fixedly connected to the rotating shaft, and the other end of the torsion spring is fixedly connected to the limiting platform.

5. The tire burst test device according to claim 1, characterized in that: The unlocking assembly includes an electromagnetic coil and a telescopic rod, wherein the electromagnetic coil is used to drive the telescopic rod to perform telescopic movement, and the telescopic rod is used to drive the first locking rod.

6. A tire blowout test system, characterized in that: The tire blowout test device comprises the tire blowout test device according to any one of claims 1 to 5, and further comprises an adapter frame, one end of which is connected to the base, and the other end of which is connected to the vehicle frame.

7. The tire burst test system according to claim 6, characterized in that: The other end of the adapter frame is connected to the horn of the frame.

8. The tire burst test system according to claim 6, characterized in that: The adapter frame includes a bearing member and a frame connecting member, the bearing member includes a rectangular flat plate, a diagonal support plate and an extension plate, the rectangular flat plate is used to be connected to the base, the rectangular flat plate and the extension plate are perpendicular to each other, the diagonal support plate is connected between the rectangular flat plate and the extension plate, and the extension plate is also connected to the frame connecting member.

9. The tire burst test system according to claim 8, characterized in that: The frame connecting member includes a first connecting plate, a second connecting plate and a mounting plate, wherein the mounting plate is connected to the extension plate, the first connecting plate and the second connecting plate are mounted on the mounting plate, and the first connecting plate and the second connecting plate are used to be connected to the horns of the frame.

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