Run-flat structure for heavy transport vehicle tire assembly

Abstract

The utility model relates to the technical field of anti -explosion support, especially relates to big piece transport vehicle tire assembly's anti -explosion emergency support structure, including wheel hub support, be connected with wheel hub main body on the wheel hub support, the outer surface of wheel hub main body is connected with the vent ring.In the utility model, through the rigid part in the composite structure to provide instant, stable skeleton support, can effectively prevent the instant wheel hub of tire burst from directly impacting the ground, ensure that the vehicle does not suddenly collapse, maintain basic controllability, at the same time, the inflation of flexible air bag provides self -adaptation filling and buffering, can perfectly fit the irregular inner wall space due to tire burst, absorbs the road impact, significantly improves the ride comfort and comfort. Both work together, finally realized the unity of safety and comfort, not only has the stable reliable of near solid tire, but also retains the shock absorption capacity of pneumatic tire, so that the vehicle can not only be safe and controllable after tire burst, but also can continue to drive in a more stable posture.

Description

Technical Field

[0001] This utility model relates to the field of explosion-proof support technology, and in particular to an explosion-proof emergency support structure for tire components of heavy transport vehicles. Background Technology

[0002] As the only component of a vehicle in contact with the ground, tires not only bear the enormous weight of the entire vehicle and its cargo but also withstand the impact of loads under complex road conditions, making them significantly more susceptible to blowouts than ordinary vehicles. In the event of a blowout, without effective emergency support, the vehicle is highly susceptible to rollover and loss of control due to imbalance, leading to significant property damage and safety accidents. Therefore, blowout-proof emergency support structures have become critical safety components for heavy-duty transport vehicles. To address the emergency support problem after a blowout, various blowout-proof support solutions have emerged in existing technologies, among which mechanical blowout-proof support structures are the most widely used. The core design concept of this type of structure is to fix and install rigid mechanical components such as locking rings and support blocks on the outside of the wheel rim or the inside of the tire. When the tire loses its inflation support capacity due to a blowout, these mechanical structures directly contact the ground, providing support for the tire and the entire vehicle and preventing further damage caused by the wheel rim directly impacting the ground.

[0003] However, existing mechanical tire blowout protection structures have significant technical flaws: their support principle relies on the direct bearing of rigid mechanical components, while the load transfer characteristics at the moment of a tire blowout are fundamentally different from those under normal driving conditions. During normal driving, the inflated tire forms an elastic support system through internal air pressure, acting like an "air cushion" to buffer road impacts and absorb load energy. However, after a blowout, the entire weight of the vehicle instantly switches from the elastic support state to the rigid support state of the retaining ring, completing a sudden load transfer from "air cushion" to "iron block." This sudden change generates a huge instantaneous impact load, often far exceeding the design bearing capacity of the retaining ring itself and its connection components to the wheel hub and tire carcass, easily leading to retaining ring deformation, bolt breakage, or overall failure of the support structure. Once the support structure fails, the vehicle will completely lose its balance constraint, which will exacerbate the risk of rollover and loss of control. This cannot meet the high requirements for the reliability and stability of explosion-proof emergency support structures for heavy transport vehicles. Therefore, this application aims to solve the safety problem caused by the mismatch between the existing mechanical explosion-proof support structure and the instantaneous load characteristics of a tire blowout, which relies on rigid load. Specifically, the tire changes from the elastic support of an "air cushion" during driving to the rigid support of a "iron block" of a locking ring in an instant, forming a huge impact load. This can easily lead to deformation of the locking ring, breakage of the connector, or failure of the entire structure, thereby exacerbating the risk of vehicle rollover and loss of control. This makes it difficult to meet the high reliability requirements of emergency support structures for heavy transport vehicles. Therefore, an explosion-proof emergency support structure for tire components of heavy transport vehicles is proposed. Utility Model Content

[0004] To overcome the limitations of existing mechanical explosion-proof support structures that rely on rigid components for direct load bearing, which is incompatible with the load characteristics at the moment of a tire blowout, it's crucial to understand that during normal driving, the inflated tire forms an "air cushion"-like elastic support to buffer road impacts. However, after a blowout, the vehicle's weight instantly shifts from elastic support to the rigid support of the locking ring, creating a sudden transition from "air cushion" to "iron block." This sudden change generates a huge instantaneous impact load, which can easily exceed the design strength of the locking ring, connectors, and support structure, leading to deformation, breakage, or overall failure. Once this fails, the vehicle will completely lose balance, exacerbating the risk of rollover and loss of control, making it difficult to meet the high reliability requirements of emergency support structures for heavy-duty transport.

[0005] The technical solution of this utility model is as follows: an explosion-proof emergency support structure for tire components of heavy transport vehicles, including a hub bracket, a hub body connected to the hub bracket, a venting ring connected to the outer surface of the hub body, a plurality of air supply holes opened on the venting ring, a support component fitted on the hub body, an expansion bladder connected to the support component, a conveying component connected inside the hub bracket, the output end of the conveying component communicating with the venting ring, and the venting ring communicating with the inner cavity of the support component through the air supply holes.

[0006] Preferably, a control module is connected to the inner wall of the wheel hub bracket, a data transmission module is provided on one side of the control module, the data transmission module is electrically connected to the control module, and a storage battery is provided at the lower end of the control module.

[0007] Preferably, the support assembly includes a support ring with a mating groove, and mounting grooves and mounting heads are respectively provided on both sides of the support ring, with the positions of the mounting grooves and mounting heads on both sides being reversed.

[0008] Preferably, the support assembly further includes a connecting block connected to the inner wall of the support ring, and a rotating bar is rotatably connected to the connecting block.

[0009] Preferably, an inner top block is rotatably connected to the rotating bar, and the outer surface of the inner top block is connected to the expansion bladder.

[0010] Preferably, the conveying assembly includes a gas storage cylinder, a gas delivery pipe connected to the gas storage cylinder, an electrically controlled valve connected to the gas delivery pipe, a gas delivery head connected to the gas outlet end of the gas delivery pipe, and the output end of the gas delivery head is the output end of the conveying assembly. The gas delivery head is connected to a ventilation ring.

[0011] Preferably, an opening and closing plate is rotatably connected to the outer surface of the wheel hub bracket, and inner reinforcing ribs are connected to both sides of the wheel hub bracket, the inner reinforcing ribs being connected to the wheel hub body.

[0012] The beneficial effects of this utility model are: 1. This utility model, through the design of a composite structure and the use of rigid components within the composite structure to provide immediate and stable skeletal support, effectively prevents the wheel rim from directly impacting the ground during a tire blowout, ensuring the vehicle does not suddenly collapse and maintaining basic handling. Simultaneously, the expansion of the flexible airbag provides adaptive filling and cushioning, perfectly conforming to the irregular inner wall space caused by the blowout, absorbing road impact, and significantly improving ride smoothness and comfort. The two work together to achieve a balance between safety and comfort, possessing the stability and reliability of a near-solid tire while retaining the shock-absorbing capabilities of a pneumatic tire. This allows the vehicle to remain safe and controllable after a tire blowout, and to continue driving with greater stability until reaching a safe area. 2. After the tire blowout signal is triggered, the control module opens the electronic control valve, and high-pressure gas is rapidly injected into the expansion bladder from the gas cylinder through the gas pipe and the vent ring. The gas pressure pushes the expansion bladder to expand outward and fit against the inner wall of the tire. At the same time, the gas pressure acts on the inner top block fixed to the expansion bladder. The inner top block pushes the rotating bar, causing it to rotate around the shaft on the connecting block, thereby firmly pushing the inner top block out to form a rigid support frame composed of the inner top block and the rotating bar. This rigid frame combines with the external flexible expansion bladder to jointly bear the vehicle load, achieving a unity of rigid support and flexible buffer. Attached Figure Description

[0013] Figure 1 The diagram shown is a three-dimensional structural schematic of Embodiment 1 of the explosion-proof emergency support structure of this utility model; Figure 2 The diagram shown is a three-dimensional structural schematic of the ventilation ring of Embodiment 1 of the explosion-proof emergency support structure of this utility model. Figure 3 The diagram shown is a three-dimensional structural schematic of the gas storage cylinder of Embodiment 1 of the explosion-proof emergency support structure of this utility model. Figure 4 The diagram shown is a tire installation schematic of Embodiment 1 of the explosion-proof emergency support structure of this utility model; Figure 5 The diagram shown is a three-dimensional structural schematic of the inner top block of Embodiment 2 of the explosion-proof emergency support structure of this utility model.

[0014] Explanation of reference numerals in the attached drawings: 101, hub bracket; 102, inner reinforcing rib; 103, hub body; 104, vent ring; 105, air inlet; 201, support ring; 202, abutment groove; 203, mounting groove; 204, mounting head; 205, connecting block; 206, rotating bar; 207, inner top block; 208, expansion bladder; 301, air storage cylinder; 302, air supply pipe; 303, electric control valve; 304, air delivery head; 401, opening and closing plate; 402, control module; 403, data transmission module; 404, battery. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Example 1 refer to Figures 1-4 The structure shown is an explosion-proof emergency support structure for the tire assembly of a heavy transport vehicle, including a hub bracket 101, a hub body 103 connected to the hub bracket 101, a venting ring 104 connected to the outer surface of the hub body 103, a plurality of air inlets 105 opened on the venting ring 104, a support assembly fitted on the hub body 103, an expansion bladder 208 connected to the support assembly, a conveying assembly connected inside the hub bracket 101, the output end of the conveying assembly communicating with the venting ring 104, and the venting ring 104 communicating with the inner cavity of the support assembly through the air inlets 105.

[0017] The system utilizes a gas delivery component to activate the inflation bladder 208, allowing it to inflate on the support ring 201. This instantaneous inflation of the bladder prevents direct impact from the ground onto the support ring 201. Simultaneously, the delivery component ensures continuous inflation of the bladder. The rigid components in this composite structure provide immediate and stable skeletal support, effectively preventing the wheel rim from directly impacting the ground during a tire blowout, ensuring the vehicle doesn't suddenly collapse and maintaining basic handling. Meanwhile, the expansion of the flexible airbag provides adaptive filling and cushioning, perfectly conforming to the irregular inner wall space caused by the blowout, absorbing road impacts and significantly improving ride smoothness and comfort. The combined effect achieves a balance between safety and comfort, possessing near-solid tire stability and reliability while retaining the shock absorption capabilities of a pneumatic tire. This allows the vehicle to remain safe and controllable after a tire blowout, continuing to drive smoothly until reaching a safe area.

[0018] Furthermore, a control module 402 is connected to the inner wall of the wheel hub bracket 101, a data transmission module 403 is provided on one side of the control module 402, the data transmission module 403 is electrically connected to the control module 402, and a storage battery 404 is provided at the lower end of the control module 402.

[0019] Among them, the control module 402 is generally used with an NXP S32K144 sensor, and the data transmission module 403 is generally used with a Nordic nRF52840 transmission module. When in use, the high dynamic range TPMS sensor integrated on the wheel hub, typically the NXP FXTH87, continuously monitors tire pressure, temperature, and vibration data in real time. Upon confirmation of a tire blowout, the control module 402 instantly triggers the opening of the electronic control valve 303. Gas in the gas cylinder 301 is released within milliseconds, filling the expansion bladder 208, causing it to expand rapidly and form emergency support to prevent the support ring 201 from touching the ground. Simultaneously, the data transmission module 403 sends important status information such as "system triggered" to the vehicle's instrument panel, immediately alerting the driver.

[0020] Furthermore, the support assembly includes a support ring 201, on which a contact groove 202 is provided. On both sides of the support ring 201, there are mounting grooves 203 and mounting heads 204 respectively, and the positions of the mounting grooves 203 and mounting heads 204 on both sides are set to be opposite.

[0021] Furthermore, the support assembly also includes a connecting block 205, which is connected to the inner wall of the support ring 201, and a rotating bar 206 is rotatably connected to the connecting block 205.

[0022] Furthermore, the conveying assembly includes a gas storage cylinder 301, a gas delivery pipe 302 connected to the gas storage cylinder 301, an electric control valve 303 connected to the gas delivery pipe 302, a gas delivery head 304 connected to the gas outlet end of the gas delivery pipe 302, and the output end of the gas delivery head 304 is the output end of the conveying assembly. The gas delivery head 304 is connected to the ventilation ring 104.

[0023] Example 2 Based on the above embodiment 1, in order to address the issue of support in the case of a pure airbag, where the inflatable bladder 208 often undergoes prolonged and extensive deformation when encountering large-scale unevenness, thus affecting vehicle operation, refer to... Figure 5 The structure shown; Unlike Embodiment 1, an inner top block 207 is rotatably connected to the rotating bar 206, and the outer surface of the inner top block 207 is connected to the expansion bladder 208.

[0024] When a tire blowout signal is triggered, the control module 402 opens the electronically controlled valve 303, allowing high-pressure gas to rapidly fill the expansion bladder 208 from the gas cylinder 301 via the gas pipe 302 and the vent ring 104. The gas pressure pushes the expansion bladder 208 outward, conforming to the inner wall of the tire. Simultaneously, the gas pressure acts on the inner top block 207, which is fixed to the expansion bladder 208. The inner top block 207 pushes the rotating bar 206, causing it to rotate around the axis on the connecting block 205, thus firmly pushing the inner top block 207 outward, forming a rigid support frame composed of the inner top block 207 and the rotating bar 206. This rigid frame, combined with the external flexible expansion bladder 208, jointly bears the vehicle load, achieving a unity of rigid support and flexible buffering.

[0025] Furthermore, an opening and closing plate 401 is rotatably connected to the outer surface of the wheel hub bracket 101, and inner reinforcing ribs 102 are connected to both sides of the wheel hub bracket 101. The inner reinforcing ribs 102 are connected to the wheel hub body 103.

[0026] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An explosion-proof emergency support structure for tire assemblies of heavy transport vehicles, characterized in that: The device includes a hub bracket (101), on which a hub body (103) is connected. A venting ring (104) is connected to the outer surface of the hub body (103). The venting ring (104) has several air supply holes (105). A support assembly is fitted on the hub body (103). An expansion bladder (208) is connected to the support assembly. A conveying assembly is connected inside the hub bracket (101). The output end of the conveying assembly is connected to the venting ring (104). The venting ring (104) is connected to the inner cavity of the support assembly through the air supply holes (105).

2. The explosion-proof emergency support structure for the tire assembly of a heavy transport vehicle according to claim 1, characterized in that: A control module (402) is connected to the inner wall of the hub bracket (101). A data transmission module (403) is provided on one side of the control module (402). The data transmission module (403) is electrically connected to the control module (402). A storage battery (404) is provided at the lower end of the control module (402).

3. The explosion-proof emergency support structure for the tire assembly of a heavy transport vehicle according to claim 1, characterized in that: The support assembly includes a support ring (201), on which a mating groove (202) is provided. On both sides of the support ring (201), there are mounting grooves (203) and mounting heads (204), and the positions of the mounting grooves (203) and mounting heads (204) on both sides are set to be opposite.

4. The explosion-proof emergency support structure for the tire assembly of a heavy transport vehicle according to claim 3, characterized in that: The support assembly also includes a connecting block (205), which is connected to the inner wall of the support ring (201), and a rotating bar (206) is rotatably connected to the connecting block (205).

5. The explosion-proof emergency support structure for the tire assembly of a heavy transport vehicle according to claim 4, characterized in that: An inner top block (207) is rotatably connected to the rotating bar (206), and the outer surface of the inner top block (207) is connected to the expansion bladder (208).

6. The explosion-proof emergency support structure for the tire assembly of a heavy transport vehicle according to claim 1, characterized in that: The conveying assembly includes a gas storage cylinder (301), a gas delivery pipe (302) connected to the gas storage cylinder (301), an electric control valve (303) connected to the gas delivery pipe (302), a gas delivery head (304) connected to the gas outlet end of the gas delivery pipe (302), the output end of the gas delivery head (304) is the output end of the conveying assembly, and the gas delivery head (304) is connected to the ventilation ring (104).

7. The explosion-proof emergency support structure for the tire assembly of a heavy transport vehicle according to claim 1, characterized in that: An opening and closing plate (401) is rotatably connected to the outer surface of the hub bracket (101), and inner reinforcing ribs (102) are connected to both sides of the hub bracket (101). The inner reinforcing ribs (102) are connected to the hub body (103).

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