Explosion-proof supporting body tire

Abstract

The utility model discloses an explosion-proof supporting body tire which comprises a rim, supporting bodies fixedly distributed on the rim and an outer tire wrapped outside the supporting bodies, each supporting body comprises two or more supporting blocks, every two adjacent supporting blocks are connected through a fastener, and limiting lugs are arranged on the supporting blocks. Compared with the prior art, the anti-explosion supporting body tire has the advantages that the radial movement of the supporting body and the rim is limited by the friction force after the supporting block and the rim are locked, and the axial movement of the supporting body and the rim is limited by the limiting lugs, so that the radial and axial stability of the anti-explosion supporting body tire is ensured; it is ensured that the tire can provide normal driving force and braking force after tire burst, and the purpose of safely evacuating passengers is achieved.

Description

Technical Field

[0001] The utility model relates to the field of explosion-proof tires, and more specifically, to an explosion-proof support tire. Background Art

[0002] At present, the safety tires and bulletproof tires used on the market basically set a support body and a support object inside an inflatable tire. After the tire suddenly bursts or deflates during driving, the support body can support the vehicle body instead of the outer tire, avoiding too large a sudden drop in the wheel height after a flat tire or deflation, thereby reducing the risk of the vehicle body deviating in direction and rolling over. At the same time, after the support body replaces the outer tire to participate in the work, the vehicle can still continue to drive for a certain distance to ensure that the vehicle can drive smoothly to a safe position. However, the support body of the existing explosion-proof support tires on the market can rotate radially between the support body and the rim, and there is no axial limit on the support body, so it is easy to shift after a flat tire, and there are potential safety and stability hazards.

[0003] The utility model patent CN202965842U discloses a safety tire support body, including a metal rolling ring and a metal sliding ring, and a metal load-bearing web is arranged between the metal rolling ring and the metal sliding ring; the metal rolling ring, the metal sliding ring and the metal load-bearing web form a 1 / 4 support ring structure, and the two ends of the four 1 / 4 support ring structures are connected to each other to form an integral support ring structure; an inner ring fixing base is arranged on the inner ring of the integral support ring structure, and a rubber shock-absorbing ring is arranged on the inner ring of the inner ring fixing base; a rubber friction strip is arranged on the outer ring of the integral support ring structure. In this solution, the inner ring of the support body almost completely fills the rim width with the outer tire, and it is very difficult for the later-pressed outer tire to be exactly inserted into the gap between the support body and the rim, and the installation space is extremely limited and the installation is difficult; the support body is composed of 4 support blocks, and the support body and the rim are connected through a metal rolling ring, so that the support body and the rim are locked radially, but can slide radially. When a flat tire and deflation suddenly occur, the driving and braking capabilities of the flat tire wheel will be reduced, and a differential speed is formed between the two tires at the moment of sudden flat tire, which is likely to cause the vehicle to deviate in direction or even roll over. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an explosion-proof support tire to solve the problems raised in the above background art.

[0005] The specific content of the summary of the utility model is as follows:

[0006] To solve the above technical problems, an explosion-proof support tire provided by the utility model includes a rim, a support body fixedly distributed on the rim, and an outer tire covering the outside of the support body. The support body includes two or more support blocks, two adjacent support blocks are connected by fasteners, and a limiting ear is arranged on the support block.

[0007] Furthermore, fastening holes are provided at both the head and the tail of the support block.

[0008] Furthermore, the fastener includes a fastening bolt, a nut block, a fixing block, and a lock washer. The fastening bolt is sleeved with the fixing block and the lock washer, and then placed into the fastening holes at the head and tail connections of the support block, and the nut block is locked onto the fastening bolt.

[0009] Furthermore, the inner diameter of the support block is slightly smaller than the outer diameter of the rim.

[0010] Furthermore, the middle of the cross-section of the contact surface between the support block and the tire is a plane, and both sides are spherical surfaces.

[0011] Furthermore, the diameter of the spherical surface is the same as the diameter at the plane, and the center of the spherical surface is the center of gravity position of the tire explosion-proof support body.

[0012] Furthermore, the limiting ears are symmetrically distributed, and at least one pair of limiting ears is provided for each support block.

[0013] Furthermore, the width and contour shape of the limiting ears are the same as those of the outer ring of the rim.

[0014] Furthermore, the support block is made of metal.

[0015] Furthermore, the outer tire is made of rubber.

[0016] The beneficial effects of the explosion-proof support body tire provided by the present utility model are as follows: Compared with the prior art, the present utility model restricts the radial movement of the support body and the rim through the frictional force after the support block is locked with the rim, and also restricts the axial movement of the support body and the rim by providing limiting ears. Therefore, the stability of the explosion-proof support body tire in the radial and axial directions is ensured, and it is ensured that the tire can provide normal driving force and braking force after a flat tire, so as to achieve the purpose of safely evacuating passengers. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of an explosion-proof support body tire;

[0018] Figure 2 is a schematic structural diagram of the connection of the support blocks of an explosion-proof support body tire;

[0019] Figure 3 is a schematic diagram of the support body of an explosion-proof support body tire;

[0020] Figure 4 is a schematic diagram of the support block of an explosion-proof support body tire;

[0021] Figure 5 is a schematic diagram of the support block of an explosion-proof support body tire contacting the road surface;

[0022] Wherein: 1. Outer tire; 2. Support body; 3. Rim; 4. Limit ear; 5. Fastening hole; 6. Support block; 7. Nut block; 8. Fixed block; 9. Lock washer; 10. Fastening bolt. Detailed implementation manners

[0023] In order to clearly illustrate the technical features of this solution, the present utility model will be elaborated in detail below through specific implementation manners and in combination with its drawings. In the following description, many specific details are set forth in order to fully understand this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the protection scope of this application is not limited by the specific embodiments disclosed below. Additionally, in the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting this application. Furthermore, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, "a plurality" means two or more unless otherwise specifically defined. In this application, unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application may be understood according to specific circumstances. In this application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0024] Example 1

[0025] As Figures 1-4 , this embodiment provides an explosion-proof support tire, which includes a rim 3, support bodies 5 fixedly distributed on the rim, and an outer tire 1 covering the outside of the support bodies. The support bodies include three support blocks 5, and two adjacent support blocks 5 are connected by fasteners. Limit ears 4 are provided on the support blocks, and the limit ears are symmetrically distributed, and each support block is provided with a pair of limit ears.

[0026] Both the head and the tail of the support block are provided with fastening holes 5. The fasteners include fastening bolts 10, nut blocks 7, fixing blocks 8, and lock washers 9. The fastening bolts are sleeved with fixing blocks and lock washers, and then placed in the fastening holes at the head and tail of the support block, and the nut blocks are locked on the fastening bolts. By combining with the nut blocks, fixing blocks and corresponding fasteners, the three support blocks are fixed on the rim, and a whole cylindrical surface is formed on the outer surface.

[0027] The connection structure at both ends of the support block 5 has an inclination angle. When the fastener is tightened, under the action of the inclined ports on the end face, the support block 5 is gradually tightened, and its inner diameter undergoes slight elastic deformation under the action of the tensile force, so that the inner diameter increases to fit perfectly with the rim 3, achieving the restriction of the radial movement of the support body on the rim. The axial fixation of the support body and the rim is limited by setting the limit ears 4. Each support block has at least 1 pair of limit ears, and the width and contour shape of the limit ears are exactly the same as those of the outer circle of the rim. The width of the inner circle of the support body in other areas can be maintained relatively narrow, and the specific width can be calculated according to the tire load and contact stress. Such a design can ensure that the contact stress between the support body and the rim remains at a low level, while also ensuring that the support body is lighter in weight, smaller in volume, more convenient to install, and more energy-efficient for vehicle driving.

[0028] When the vehicle is not equipped with an explosion-proof support body, the height change difference of the tire when the tire suddenly bursts is the distance from the rim to the outer tire; after installing the explosion-proof support body, the height change value of the tire when the tire suddenly bursts is from the explosion-proof support body to the outer tire. Since the tire height change is reduced, the possibility of direction deviation and rollover when the vehicle suddenly bursts a tire is decreased.

[0029] Example 2

[0030] As Figures 1-4 , this embodiment provides an explosion-proof support tire, which includes a rim 3, support bodies 5 fixedly distributed on the rim, and an outer tire 1 covering the outside of the support bodies. The support bodies include three support blocks 5, and two adjacent support blocks 5 are connected by fasteners. Limit ears 4 are provided on the support blocks, and the limit ears are symmetrically distributed, and each support block is provided with a pair of limit ears.

[0031] The head and tail of the support block are both provided with fastening holes 5. The fastener includes a fastening bolt 10, a nut block 7, a fixing block 8, and a lock washer 9. The fastening bolt is sleeved with the fixing block and the lock washer, and then placed in the fastening holes at the head and tail of the support block, and the nut block is locked on the fastening bolt. By combining with the nut block, the fixing block and the corresponding fasteners, three support blocks are fixed on the rim, and a whole cylindrical surface is formed on the outer surface.

[0032] The connecting structures at both ends of the support block 5 have an inclination angle. When the fastener is tightened, under the action of the inclined port on the end face, the support block 5 is gradually tightened, and its inner diameter undergoes slight elastic deformation under the action of the tensile force, so that the inner diameter increases to fit perfectly with the rim 3, achieving the restriction of the radial movement of the support body on the rim. The axial fixation of the support body and the rim is limited by the limit ears 4. Each support block has at least one pair of limit ears, and the width and contour shape of the limit ears perfectly match the outer ring of the rim. The width of the inner ring of the support body in other areas can be maintained relatively narrow, and the specific width can be calculated according to the tire load and contact stress. Such a design can ensure that the contact stress between the support body and the rim remains at a relatively low level, while also ensuring that the support body is lighter in weight, smaller in volume, more convenient to install, and more energy-efficient for vehicle driving.

[0033] Further, taking the support body corresponding to a 22.5-inch × 11.75-inch rim as an example, the outer diameter of the rim is Φ510mm, with a tolerance of -0, +3mm, and the inner diameter of the support body is Φ510, with a tolerance of -0.5mm, +0mm. That is, the inner diameter of the support block is slightly smaller than the outer diameter of the rim, and the connecting structures at both ends of the support block have an inclination angle. When tightened by the fastener, the support block is gradually tightened, and its support body undergoes slight elastic deformation under the action of the tensile force, so that the inner diameter increases to fit perfectly with the rim. The above diameter tolerance dimensions are reference values, and here only an example is given to illustrate that the above dimensions can achieve tightening the support block to fit the rim. The tightening effect of this embodiment is verified by experiments. For the tire installed with this explosion-proof support body, after a flat tire, the support body supports the tire to continue driving for 30 km, and the radial slip between the explosion-proof support body and the rim is about 20mm, which can fully provide the driving force and braking force for vehicle driving. In the actual production process, the joint width after the combination of three support blocks can be adjusted within a certain range according to the tightening effect of the bolt. Therefore, the support block and the rim have a relatively wide diameter fit tolerance.

[0034] Embodiment 3

[0035] As Figures 1-5, this embodiment provides an explosion-proof support tire, which includes a rim 3, support bodies 5 fixedly distributed on the rim, and an outer tire 1 covering the outside of the support bodies. The support bodies include three support blocks 5, and two adjacent support blocks 5 are connected by fasteners. Limit ears 4 are provided on the support blocks, and the limit ears are symmetrically distributed, and each support block is provided with a pair of limit ears.

[0036] Both the head and the tail of the support block are provided with fastening holes 5. The fasteners include fastening bolts 10, nut blocks 7, fixing blocks 8, and lock washers 9. The fastening bolts are sleeved with fixing blocks and lock washers, and then placed in the fastening holes at the head and tail of the support block, and the nut blocks are locked on the fastening bolts. By combining with the nut blocks, fixing blocks and corresponding fasteners, the three support blocks are fixed on the rim, and a whole cylindrical surface is formed on the outer surface.

[0037] The connection structure at both ends of the support block 5 has an inclination angle. When the fasteners are tightened, under the action of the inclined ports on the end faces, the support block 5 is gradually tightened, and its inner diameter undergoes slight elastic deformation under the action of the tensile force, so that the inner diameter increases to fit perfectly with the rim 3, achieving the limitation of the radial movement of the support body on the rim. The axial fixation of the support body and the rim is limited by the limit ears 4. Each support block has at least 1 pair of limit ears, and the width and contour shape of the limit ears are exactly the same as the outer ring of the rim. The width of the inner ring of the support body in other areas can be maintained relatively narrow, and the specific width can be calculated according to the tire load and contact stress. Such a design can ensure that the contact stress between the support body and the rim is maintained at a relatively low level, and at the same time ensure that the support body is lighter in weight, smaller in volume, more convenient to install, and more energy-efficient for vehicle driving.

[0038] Furthermore, the middle of the outer diameter of the cross-section of the support body 5 is a plane, and the two sides are designed with spherical surface structures. When the vehicle is driving on a flat road, the middle plane of the support body contacts the ground. When the vehicle is driving on an inclined road surface, the contact of the support body with the ground transfers from the middle to both sides. Since the spherical diameters on both sides are the same as the diameter at the plane, the change in the inclination angle will not cause a change in the tire height at this time, so the driving is more stable. At the same time, since the spherical surfaces on both sides of the support body point to the center of the tire after being stressed, the stress distribution of the support body is more uniform, and there will be no situation where only the local areas on both sides are fully stressed when the whole-plane support body is inclined. Therefore, the support body with this structure is safer.

[0039] It is obvious to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention, and any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. An explosion-proof support tire, characterized in that: It includes a rim, a support body fixedly distributed on the rim, and a tire wrapped outside the support body. The support body includes two or more support blocks. Two support blocks at adjacent positions are connected by fasteners, and limiting ears are arranged on the support blocks.

2. The explosion-proof support tire according to claim 1, characterized in that: The head and tail of the support block are both provided with fastening holes.

3. The explosion-proof support tire according to claim 1, characterized in that: The fastener comprises a fastening bolt, a nut block, a fixing block and an anti-loosening gasket. The fastening bolt is sleeved with the fixing block and the anti-loosening gasket and is then placed in a fastening hole connected at the head and tail of the support block. The nut block is locked on the fastening bolt.

4. The explosion-proof support tire according to claim 1, characterized in that: The inner diameter of the support block is slightly smaller than the outer diameter of the rim.

5. The explosion-proof support tire according to claim 1, characterized in that: The middle of the contact surface section between the support block and the tire is a plane, and the two sides are spherical surfaces.

6. The explosion-proof support tire according to claim 5, characterized in that: The diameter of the spherical surface is the same as the diameter of the plane, and the center of the spherical surface is the center of gravity of the tire explosion-proof support body.

7. The explosion-proof support tire according to claim 1, characterized in that: The limiting ears are symmetrically distributed, and each support block is provided with at least one pair of limiting ears.

8. The explosion-proof support tire according to claim 1, characterized in that: The width and contour shape of the limiting ear are consistent with the outer ring of the rim.

9. The explosion-proof support tire according to claim 1, characterized in that: The supporting block is made of metal.

10. The explosion-proof support tire according to claim 1, characterized in that: The outer tire is made of rubber.

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