Tire internal support type W-type safety internal support device

Abstract

A W-shaped safety internal support device for a tire includes a sliding plate, internal support petals, a support block, and a locking device. The sliding plate is positioned outside the internal support petals, and the support block is positioned inside the internal support petals. The internal support petals and support blocks can be connected end-to-end to form a complete W-shaped internal support structure. The sliding plate is used to maintain the internal support petals as a whole, enabling them to change shape or position within a certain range. The support block is used to connect the internal support petals while also bearing the load-bearing pressure, and together with the internal support petals, forms a W-shaped internal support structure. The present invention forms a stable multi-zone support structure, and the locking force between the tire and the rim can be adaptively adjusted according to different operating conditions.

Description

Technical Field

[0001] The present invention relates to an automobile safety device, and more particularly to a safety inner support device for a tire. Background Art

[0002] With the rapid improvement of people's material lives, cars have become a common means of transportation in daily life. With rising consumer spending, safety has become a key consideration in addition to fuel efficiency, comfort, and aesthetics. For specialized vehicles, such as large freight trucks, armored vehicles, and vehicles with bulletproof requirements, safety is even more paramount. Traffic accidents caused by tire defects account for a significant proportion of highway accidents. In addition to the fact that tires themselves are one of the most heavily worn components on a vehicle, the rapid rise in car ownership has also led many drivers to neglect their vehicles' condition and routine maintenance, contributing to tire safety hazards. Tires used on specialized vehicles or vehicles with bulletproof requirements are required to maintain a certain speed and distance to reach repair or a safe location after a loss of pressure. To address these issues, the concept of safety tires was proposed as early as the last century, and many renowned tire manufacturers have devoted significant effort to developing safety tires.

[0003] After years of hard work by numerous scholars and engineers, a wide variety of safety tires have been developed. Among them, internally supported tires offer exceptional functionality and a broad range of applications. As the name suggests, internally supported safety tires incorporate support between the tire and the rim, enabling the tire to continue traveling at a certain speed and distance after a loss of pressure. Despite the availability of numerous internally supported safety tires, various drawbacks and limitations have prevented their widespread adoption.

[0004] 1) Irrational force distribution. Currently, most internally supported safety tires have an I-type structure. For example, Chinese invention patent application number CN201910102468.4 discloses an internal support device for a safety tire. This structure results in the primary force points on the wheel being concentrated in the middle of the rim after a tire collapse. This center of the rim is the weakest part of the rim, while the sides are the stronger parts, making it susceptible to damage.

[0005] 2) Requires special rims. Taking the most typical Michelin PAX safety tire as an example, one of its major disadvantages is that it requires special rims, which greatly reduces its applicability and increases its cost.

[0006] 3) Inability to lock the tire and rim. The most significant hazard in a tire blowout is the separation of the tire from the rim, which can directly lead to rim damage and loss of vehicle control. The normal tire assembly process involves placing the tire on the rim, creating a closed space between the tire and rim. This creates a conflict in securing the tire and rim with the inner support. Currently, the inner support of most internally supported tires only serves to support the tire after a loss of pressure.

[0007] 4) Internal support assembly and tightening. To facilitate assembly and removal, internal supports are often multi-petal. If the connections between the petals are too rigid, assembly and removal will be difficult; if the connections between the petals are too soft, assembly and removal will be unstable, prone to jamming and misalignment, and thus inconvenient.

[0008] 5) Adjustable tire-rim locking force. The tighter the lock between the tire and the rim, the better. When the car is driving normally and the tire has not blew out, if the lock between the tire and the rim is too tight, it will affect the driving experience. Ideally, the internal support should provide an appropriate preload force that does not affect the vehicle's operation during normal driving. In the event of a blew out and the tire loses pressure, the locking force can be adjusted to suit different driving conditions. Summary of the Invention

[0009] In order to overcome the shortcomings of the existing technology, the present invention provides an internal support W-shaped safety internal support device suitable for various rims. When subjected to force, the device can transmit the force to the central area of ​​the rim through the support block, while dispersing the force to the strong sides of the rim to bear the force, forming a stable multi-area support form; at the same time, the internal support petals of the device adopt a moderate strength connection method, and the locking force provided between the tire and the rim can be adaptively adjusted according to different working conditions.

[0010] The technical solution adopted by the present invention to solve its technical problem is:

[0011] A W-shaped safety inner support device for a tire includes a sliding plate, inner support petals, a support block and a locking device. The sliding plate is provided outside the inner support petals and the support block is provided inside the inner support petals. The inner support petals and the support blocks can be connected end to end to form a complete W-shaped inner support structure. The sliding plate is used to maintain the inner support petals so that they can change shape or position as a whole within a certain range; the support block is used to connect the inner support petals while also bearing the load-bearing pressure, and together with the inner support petals form a W-shaped inner support structure.

[0012] Furthermore, the sliding plates are block-type, and the sliding plates are connected end to end.

[0013] Furthermore, a guide structure is designed on the inner supporting petals to facilitate and strengthen the connection between the inner supporting petals.

[0014] Preferably, guide structures are provided at both the front and rear ends of the inner support flap.

[0015] Furthermore, the left and right ends of the inner support flap are pressed on the inner edge of the automobile tire and then pressed onto the rim together with the tire.

[0016] The support block in the inner support petal is divided into two parts, A and B.

[0017] Each inner support petal is connected to a support block A. The connection between the inner support petal and block A is through four bayonet slots distributed in the middle of the top of block A and four connecting parts at corresponding positions on the inner surface of the corresponding inner support petal. They can be connected by quick-connect structures such as springs, snaps, and floating connections. Each inner support petal and the support block A connected to it together form a W-shaped inner support structure.

[0018] Furthermore, the support blocks A are connected via axle pin structures on both sides of the top of the A blocks.

[0019] Furthermore, one of the support blocks A has an internal connection and locking device. It is not connected to the two adjacent blocks A via the pin structures on both sides of the top, but is connected to the two adjacent blocks A via screws and connectors on the connection and locking device. This is referred to as a special support block A in the present invention.

[0020] Preferably, connector guide holes are provided at the front, back, left and right ends of block A for passing flexible connectors such as steel wires and nylon ropes, which can prevent dislocation and assist in positioning.

[0021] The B block is segmented and connected end to end and buckled on the rim. The contact surface between the B block and the rim is further reinforced by bonding or other means.

[0022] Furthermore, the surface of block B has a toothed sliding buckle structure corresponding to the toothed sliding groove at the bottom of block A to ensure that the inner support petal moves along the trajectory of block B during assembly, and at the same time, the locking effect of block A and block B can be ensured when the W-shaped inner support is working.

[0023] The technical concept of this invention is that, in automobiles, weight determines energy consumption. Therefore, minimizing the weight of the inner support flaps and support blocks is a crucial factor in all internal support designs. In this invention, the inner support flaps and support blocks are preferentially optimized through methods such as finite element analysis and topology optimization, achieving structural optimization by reducing the weight of areas with less stress.

[0024] The assembly process begins by sliding support block B onto the rim. The tops of support blocks A are connected in pairs using pins. A locking device is placed inside the special support block A, and adjacent support blocks A are connected using screws and connectors to form a closed loop. The inner support flap is installed on top of support block A. The inner support flap, along with support block A, is installed around the periphery of the rim, where support block B is mounted. The special support block A is connected to the standard support block A using the screws and connectors of the locking device. Standard support blocks A are connected to each other using pins. A sliding plate is then placed around the inner support flap and the periphery of block A to ensure a seamless connection. At this point, the sliding blocks, the inner support flaps, and the inner support to the rim are loose and not locked. The tire is then placed around the sliding plate, with the tire sidewall pressed against the inner support shoe and the rim. It is important to ensure that the grooves for the locking device on support block B, the valve core hole on the rim, and the special inner support flap with the locking device are aligned. After all are placed in position, rotate the locking device through the valve core hole. The locking device drives support block A to tighten toward the rim side. Support block A drives each inner support petal to tighten toward the rim side at the same time. When appropriate preload force is applied, the inner support can lock the tire on the rim.

[0025] Furthermore, flexible connectors such as steel wires, nylon ropes, etc. can be passed through both sides of the support block A to play an auxiliary role.

[0026] Furthermore, the inner support flap, support block A and skateboard mentioned in the present invention can be made of various high-strength materials such as nylon; the connecting parts between the inner support flap and support block A can be made of various high-strength materials such as sheet metal and nylon.

[0027] The beneficial effects of the present invention are mainly manifested in:

[0028] 1) More reasonable force distribution. The strong rim's two sides mainly bear the force. The W-shaped inner support structure makes the force distribution more reasonable. The force it bears can also enhance the locking effect of the inner support on the tire locking on the rim.

[0029] 2) It has a wide range of applications and does not require special rims. It can be applied to most car tires by simply changing some structural dimensions according to different tires.

[0030] 3) Effectively prevents separation between the tire and rim. The valve core locking method resolves the dilemma of how to secure the inner support to the tire and rim within the enclosed space of the tire and rim. The W-shaped inner support proposed by this invention compresses the tire against the rim. During normal operation, proper preload prevents any impact on driving. In the event of a tire decompression, the force exerted on the tire is transmitted to both sides of the rim through the inner support lobes, enhancing the locking effect of the tire on the rim.

[0031] 4) The internal supports are easy to load and unload, stable, and securely locked. A moderately flexible locking method, supplemented by a sliding buckle structure, ensures connection rigidity while ensuring a smooth loading and unloading process without jamming or misalignment.

[0032] 5) The locking force between the tire and rim is adjustable. Since the support blocks A are connected by an axle pin structure, when the tire blew and the pressure dropped, the locking force can be flexibly adjusted by rotating the inner support petal and support block A slightly under different working conditions.

[0033] 6) The device features a simple structure, easy assembly and disassembly, convenient maintenance, and reusability. Due to its multi-petal structure, assembly requires only placing the inner support petals and support block A around the tire and applying preload. Maintenance requires simply replacing the inner support petals and support block A based on their performance.

[0034] 7) Lightweight: The weight of the inner support flap and support block A is rationally reduced through finite element analysis and topology optimization. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 Schematic diagram of the inner support flap.

[0036] Figure 2 It is a schematic diagram of sliding plates.

[0037] Figure 3 This is a schematic diagram of support block A.

[0038] Figure 4 This is a schematic diagram of support block B.

[0039] Figure 5 It is a schematic diagram of the connection between the inner support flap and support block A.

[0040] Figure 6 It is a schematic diagram of the assembly between support blocks A (locking) and support blocks A and B.

[0041] Figure 7 This is a schematic diagram of the connection between support blocks A and B when not locked.

[0042] Figure 8 It is a schematic diagram of the assembly of support block B and rim.

[0043] Figure 9 This is a schematic diagram of the connection between support blocks A and B when locked.

[0044] Figure 10 This is a schematic diagram of the overall assembly when it is not locked (excluding the tire).

[0045] Figure 11 This is a schematic diagram of the overall assembly when locked (excluding tires).

[0046] Figure 12 This is a cross-sectional view of the entire assembly (including tires)

[0047] In the figure, 1-guide structures at both ends of the inner support flap, 2-guide hole of the connecting object, 3-connecting structure, 4-sliding plate, 5-support block A, 6-connecting structure, 7-axle pin structure, 8-sliding mouth, 9-support block B, 10-sliding buckle, 11-inner support flap, 12-special support block B, 13-locking device, 14-rim, 15-valve core hole, 16-special support block A, 17-tire, 18-inner edge of the tire. DETAILED DESCRIPTION

[0048] The present invention will be further described below with reference to the accompanying drawings.

[0049] Reference Figures 1 to 12 A W-shaped safety internal support device for a tire includes a sliding plate, 11-inner support petals, 5-support blocks A, 9-support blocks B, and 13-locking devices. For different automobile tires, the W-shaped internal support device proposed in the present invention only needs to adjust some size structures to be applicable.

[0050] The inner support device is multi-petal, including 11-inner support petals with similar structure and 16-special inner support petals with separate special connection 13-locking device, and each 11-inner support petals are connected end to end to form a complete inner support structure. Figure 1 shown.

[0051] There should be a sliding plate outside the inner support petal 11, which is used to maintain the inner support petals as a whole to change shape or position within a certain range. For the convenience of assembly and manufacturing, the sliding plate can also be divided into blocks. The specific number of sliding plates should be determined according to the actual situation of assembly, manufacturing and different tires. Figure 2 shown

[0052] The 11-inner support petals need to be connected in a certain way. The 11-inner support petals are connected by a 7-axis pin structure. The axis pin structure ensures a certain connection rigidity while being able to rotate so that the connection has a certain flexibility, which is very suitable for safe internal support to cope with different working conditions. Figure 6 shown.

[0053] To ensure reliable locking between the inner support petals, a 1-guide structure can be designed on the inner support petals to facilitate and strengthen the connection between the inner support petals. The specific shape and position of the 1-guide structure should be determined according to the different tires and inner support petal structures. Preferably, guide structures are provided at the front and rear ends of the inner support, i.e., a 1-two-end guide structure.

[0054] The inner support and the 14-car rim are required to be able to be locked. In the present invention, this technical requirement is achieved through 13-locking device, 5-support block A, and 9-support block B. 5-support block A is connected to the 11-inner support petal through 6-connection structure. 6-connection structure can be a quick-connection structure such as a spring, a buckle, etc. 5-support block A is provided with an 8-slide structure at the bottom. 9-support block B is sleeved on the 14-car rim, and a 10-slide buckle structure is provided on the surface to cooperate with the 8-slide structure at the bottom of 5-support block A. The force applied by the 13-locking device drives the 5-support block A to be tightened along the 10-slide buckle on the 9-support block B toward the 14-car rim. In this way, each inner support petal is connected and locked into a whole, and at the same time, the inner support is locked on the rim, so that the entire set of support devices can be firmly held on the rim. Since the inner support petal is a U-shaped structure, there is sufficient space between the inner support petal and the rim to place the 5-support block A and the 9-support block B. As shown in the attached figure Figure 7 The figure shows the connection status when it is unlocked. Figure 9 The connection is shown in the locked state.

[0055] Preferably, 2-connector guide holes are provided on the 11-inner support petal and the 5-support block A. Flexible connectors, such as steel wires, nylon ropes, etc., can be added to the connector guide holes to prevent dislocation and assist in positioning.

[0056] The left and right ends of the inner support flap are pressed on the inner edge of the 18-car tire and then crimped on the 14-car rim together with the 17-tire.

[0057] In this embodiment, the 9-support block B is first sleeved on the rim. The tops of the 5-support blocks A are connected in pairs using a 7-axis pin structure. The 13-locking device is placed in the 16-special support block A, and the adjacent support blocks A are connected by screws and connectors to form a closed-loop connection structure. The 11-inner support flap is installed on the 5-support block A. The 11-inner support flap with the 5-support block A is installed on the periphery of the 14-rim sleeved with the 9-support block B. The 16-special support block A is connected to the 5-ordinary support block A by the screws and connectors of the 13-locking device. The 5-ordinary support blocks A are connected by the 7-axis pin structure. The periphery of the 11-inner support flap is then sleeved with a 4-sliding plate to ensure that it becomes a whole. At this time, the 4-sliding plates, the 11-inner support flaps, and the inner support and the 14-rim are in a relaxed state and are not locked. As shown in the attached figure Figure 10 Then the 18-tire is placed on the periphery of the 4-sliding plate, and the tire sidewalls should be pressed between the shoe feet on both sides of the inner support and the sides of the rim.

[0058] It should be noted in particular that the groove of the locking device on the 12-special support block B, the 15-valve core hole on the 14-rim and the 16-special inner support flap with the 13-locking device should be aligned.

[0059] After all are placed in the required positions, the locking device is rotated through the 15-valve core hole 13-, and the 13-locking device drives the 5-support block A block to tighten toward the rim side. The 5-support block A block drives each 11-inner support petal to tighten toward the 14-rim side at the same time. When the appropriate preload force is applied, the inner support can lock the 17-tire on the 14-rim.

[0060] During normal driving, when the tire is operating normally, the primary load is borne by the tire pressure. The inner support device, under appropriate preload, presses the inner side of the tire firmly against the rim (14), preventing any disruption to normal driving. If the tire (17) loses pressure, the primary load is borne by the inner support device, which presses the tire against both sides of the rim, effectively preventing it from peeling off. The four sliding plates ensure that the inner support petals (11) function as a single unit.

[0061] The above embodiments are only preferred embodiments of the present invention and are not limitations on the technical solutions of the present invention. Any technical solution that can be implemented on the basis of the above embodiments without creative work should be deemed to fall within the scope of protection of the patent of the present invention.

Claims

1. A tire internal support type W-shaped safety internal support device, characterized in that: The W-shaped safety inner support device includes a sliding plate, an inner support petal, a support block and a locking device. The sliding plate is provided outside the inner support petal and the support block is provided inside the inner support petal. The inner support petals and the support blocks can be connected end to end to form a complete W-shaped inner support structure. The sliding plate is used to maintain the inner support petals as a whole so that they can change shape or position within a certain range. The support blocks are used to connect the inner support petals while also bearing the bearing pressure, and together with the inner support petals form a W-shaped inner support structure; The support blocks in the inner support petal are divided into two parts, A and B. Each inner support petal is connected to a support block A. The connection between the inner support petal and the A block is through four bayonet holes distributed in the middle of the top of the A block and four connecting pieces at corresponding positions on the inner surface of the corresponding inner support petal. Each inner support petal and the support block A connected to it together form a W-shaped inner support structure; the B block is a block-type end-to-end buckled on the rim; The connection between the support blocks A is achieved through the axle pin structures on both sides of the top of block A. There is an internal connection and installation locking device in the support block A. It is connected to the two adjacent blocks A not through the axle pin structures on both sides of the top, but is connected to the two adjacent blocks A by the screws and connectors on the connection locking device. Connector guide holes are set at the front, back, left and right ends of block A for passing flexible connectors. The contact surface between block B and the rim is reinforced by gluing. The surface of block B has a toothed sliding buckle structure corresponding to the toothed sliding mouth at the bottom of block A to ensure that the inner support petal moves along the trajectory of block B during assembly. At the same time, the locking effect of block A and block B can be ensured when the W-shaped inner support is working.

2. The tire inner support type W-shaped safety inner support device according to claim 1, characterized in that: The sliding plates are block-type, and the sliding plates are connected end to end.

3. The tire inner support type W-shaped safety inner support device according to claim 1 or 2, characterized in that: A guide structure is designed on the inner support petals to strengthen the connection between the inner support petals.

4. The tire inner support type W-shaped safety inner support device according to claim 1 or 2, characterized in that: Guide structures are provided at both the front and rear ends of the inner support flap.

5. The tire inner support type W-shaped safety inner support device according to claim 1 or 2, characterized in that: The left and right ends of the inner support petal are pressed on the inner edge of the automobile tire and then pressed on the rim together with the tire.

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