Carcass and tire

Abstract

The present invention relates to a tire body, comprising a tire crown, a wheel body and a wheel bottom which are arranged in sequence, wherein the wheel body is provided with a first group of blind holes and a second group of blind holes, and the wheel body has a first side surface and a second side surface which are arranged opposite to each other, wherein: the first group of blind holes opens at the first side surface, and comprises a plurality of first blind holes which are arranged at intervals; the second group of blind holes opens at the second side surface, and comprises a plurality of second blind holes which are arranged at intervals; the first blind holes and the second blind holes are arranged in a staggered manner, the size of the second blind holes is greater than the spacing between two adjacent first blind holes, and air flow holes are formed at the parts facing the first blind holes and the second blind holes; through the above arrangement, the weight of the tire body is reduced, and the rolling resistance of the tire is reduced; the areas of the two adjacent second blind holes and the areas of the two adjacent first blind holes respectively provide supporting forces for the two sides of the wheel body, thereby ensuring the balance of the two sides of the wheel body; the air flow holes enable the gas on the two sides of the wheel body to circulate, and the heat dissipation is good, thereby solving the problem of air leakage and tire burst of an inflated inner tube, and the safety performance of the tire is stable.

Description

Technical Field

[0001] The present invention relates to the technical field of tire equipment, and in particular to a tire body and a tire. Background Art

[0002] With the rapid development of social economy and the continuous improvement of people's living standards, people usually choose vehicles as daily commuting means of transportation. As an indispensable component of a vehicle, tires can support the vehicle body, buffer external impacts, and ensure the driving performance of the vehicle. At present, tires are generally composed of an inner tube and an outer tube. The outer tube rubs against the ground during driving and requires high wear resistance; the inner tube controls the tire pressure and often withstands a certain pressure by inflating to maintain the internal pressure of the tire, but such tires often burst and leak.

[0003] Since then, people have developed airless tires to avoid blowouts and air leaks. Airless tires can use the entire tire as a single unit. Airless tires are mainly divided into foam tires and solid tires. Among them: foam tires are provided with countless closed air holes, and there is no risk of puncture in the tires, which can avoid multiple maintenance of the tires. However, the tire material is made of rubber foam, which has poor weather resistance, fast aging, and is easy to loosen and fall off the tire. Especially when running at a continuous high speed, the foam part of the tire core softens rapidly and then breaks, making the tire unusable. The limited service life of the tire leads to a high cost of using foam tires, which is not conducive to promotion. In order to overcome the shortcomings of the above-mentioned foam tires, solid tires made of rubber material were then produced, but the entire body is a solid structure, the tire is heavy, the heat dissipation effect is poor, and the rolling resistance is large, which brings unforeseen hazards during use. Summary of the invention

[0004] Based on this, it is necessary to provide a carcass and a tire to address the problem that the tire safety performance is not stable enough.

[0005] A tire body, comprising a tire crown, a wheel body and a wheel bottom arranged in sequence, wherein the wheel body is provided with a first group of blind holes and a second group of blind holes, and the wheel body has a first side surface and a second side surface arranged oppositely, wherein:

[0006] The first group of blind holes opens on the first side surface and includes a plurality of first blind holes arranged at intervals;

[0007] The second group of blind holes opens at the second side surface and includes a plurality of second blind holes arranged at intervals;

[0008] The first blind hole and the second blind hole are staggered, the size of the second blind hole is larger than the distance between two adjacent first blind holes, and the first blind hole and the second blind hole face each other to form an air flow hole.

[0009] The tire body, by arranging staggered first and second blind holes on opposite sides of the wheel body, reduces the weight of the tire body, reduces the rolling resistance of the tire, improves the safety of the vehicle during driving, and solves the problem that the existing solid tire tire body is heavy, has large rolling resistance, and the safety performance cannot be guaranteed; and the areas of the two adjacent second blind holes and the areas of the two adjacent first blind holes respectively provide support forces for the two sides of the wheel body, ensuring the balance of the two sides of the wheel body, and the air flow holes formed by the opposite parts of the first blind holes and the second blind holes ensure that the air on both sides of the wheel body can flow, so that the heat dissipation of the tire body is good, and the problem that the previous pneumatic tire is prone to leakage and bursting during driving is solved, so that the safety performance of the tire is stable. The tire body can be used as a tire alone, and can also be used in combination with an existing outer tire.

[0010] In one embodiment, a projection of the area of ​​two adjacent first blind holes on the second side surface is located in the middle of the second blind hole.

[0011] In one of the embodiments, a first group of grooves is provided in the area of ​​two adjacent first blind holes, the first group of grooves is open to the first side surface, the first group of grooves includes a first groove, a second groove and a third groove, the first groove is spaced apart from the third groove, the second groove connects the first groove and the third groove, and the depth of the second groove is smaller than that of the first groove and the third groove.

[0012] In one embodiment, the first group of grooves further includes a fourth groove and a fifth groove, wherein the fourth groove connects the first groove and the tread crown, and the fifth groove connects the third groove and the wheel bottom.

[0013] In one embodiment, a projection of a center line of the first group of grooves on the second side surface coincides with a center line of the second blind hole.

[0014] In one of the embodiments, a second group of grooves is provided in the area of ​​two adjacent second blind holes, the second group of grooves is open to the second side surface, the second group of grooves includes a sixth groove, a seventh groove and an eighth groove, the sixth groove is spaced apart from the eighth groove, the seventh groove connects the sixth groove and the eighth groove, and the depth of the seventh groove is smaller than that of the sixth groove and the eighth groove.

[0015] In one embodiment, the second group of grooves further includes a ninth groove and a tenth groove, wherein the ninth groove is connected to the sixth groove and the tread crown, and the tenth groove is connected to the eighth groove and the wheel bottom.

[0016] In one embodiment, a projection of a center line of the second group of grooves on the first side coincides with a center line of the first blind hole.

[0017] In one embodiment, the crown is provided with a plurality of longitudinal grooves and a plurality of transverse grooves, wherein:

[0018] A plurality of the longitudinal grooves are arranged at intervals, and the length of the longitudinal grooves is the length of the tread crown;

[0019] A plurality of the transverse grooves are arranged at intervals, and the transverse grooves are arranged along the width direction of the crown.

[0020] In one embodiment, the wheel body is provided with a first connecting groove and a second connecting groove, wherein:

[0021] The first connecting groove opens at the first side surface and connects the first blind hole and the transverse groove;

[0022] The second communicating groove opens at the second side surface and communicates with the second blind hole and the transverse groove.

[0023] The present invention also discloses a vehicle tire, comprising an outer tire and a tire body as described in any of the above embodiments, wherein the tire body serves as an inner tire and cooperates with the outer tire.

[0024] In the tire, the first and second groups of staggered blind holes are arranged on opposite sides of the wheel body, respectively, so that the weight of the tire body is reduced, the rolling resistance of the tire is reduced, and the safety of the vehicle during driving is improved, and the problem that the existing solid tire has a large carcass weight, large rolling resistance, and the safety performance cannot be guaranteed is solved; and the areas of the two adjacent second blind holes and the areas of the two adjacent first blind holes respectively provide support forces for the two sides of the wheel body, ensuring the balance of the two sides of the wheel body, and the air flow holes formed by the opposite parts of the first blind holes and the second blind holes ensure that the gas on both sides of the wheel body can flow, so that the heat dissipation of the tire body is good. Therefore, the tire matched with the existing outer tire and the tire body also ensures good heat dissipation of the tire body, avoids tire blowout and the like, that is, increases the service life of the tire, and better ensures that the tire has stable safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of a carcass provided by the present invention;

[0026] Figure 2 A front view of a carcass provided by the present invention;

[0027] Figure 3 for Figure 2 A schematic diagram of the structure enlargement in the middle;

[0028] Figure 4A rear view of a carcass provided by the present invention;

[0029] Figure 5 for Figure 4 A magnified schematic diagram of the structure at B in the middle;

[0030] Figure 6 The present invention provides a left side view of a carcass.

[0031] in:

[0032] 10. Fetal body;

[0033] 100, crown; 110, longitudinal groove; 120, transverse groove;

[0034] 200, wheel body; 210, first side surface; 211, first blind hole; 212, first groove; 213, second groove; 214, third groove; 215, fourth groove; 216, fifth groove; 220, second side surface; 221, second blind hole; 222, sixth groove; 223, seventh groove; 224, eighth groove; 225, ninth groove; 226, tenth groove; 230, air flow hole; 240, first connecting groove; 250, second connecting groove;

[0035] 300. Wheel bottom. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0041] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0042] The technical solution provided by the embodiments of the present invention is described below in conjunction with the accompanying drawings.

[0043] like Figures 1 to 5As shown, an embodiment of the present invention provides a carcass 10, which can be used as a tire, and can be used alone on vehicles such as bicycles and electric scooters, or can be used in conjunction with an existing outer tire. The material of the carcass 10 is generally made of rubber material, which has good elasticity and provides good comfort to people using the vehicle. Compared with the existing rubber foam inner tube, the carcass 10 formed of rubber material has better weather resistance, slow aging speed, and is not easy to loosen and fall off the tire. Especially when running at a continuous high speed, it is not easy to soften and crush, which better ensures the safety of personnel. The material of the carcass 10 is not limited to rubber, and can be other materials for making solid carcasses. The carcass 10 includes a crown 100, a wheel body 200 and a wheel bottom 300 arranged in sequence. The wheel body 200 is provided with a first group of blind holes and a second group of blind holes. The wheel body 200 has a first side 210 and a second side 220 arranged oppositely. The first group of blind holes and the second group of blind holes arranged on the wheel body 200 reduce the weight of the carcass 10, reduce the rolling resistance of the tire, and improve the safety of the vehicle during driving, wherein:

[0044] The first group of blind holes opens at the first side surface 210, and the first group of blind holes includes a plurality of first blind holes 211 arranged at intervals. When specifically arranged, the number of the first group of blind holes can be 20, 25, 30, 35, 40, 45 or more. The specific number of the first group of blind holes can be evenly arranged according to the circumference of the wheel body 200. The circle formed by connecting the centers of each first blind hole 211 forms a concentric circle with the carcass 10. The area of ​​two adjacent first blind holes 211 plays a supporting role. The evenly distributed first blind holes 211 make the area size of two adjacent first blind holes 211 the same. Then, the region provides the same support force for the carcass 10, which is conducive to ensuring the balance of the carcass 10. The shape of the first blind hole 211 can be arbitrary. In this embodiment, the first blind hole 211 is set as a square blind hole. The edges and corners of the square blind hole have chamfers of the same size. The size of the chamfer can be 30°, 45°, 60°, etc. The square blind hole with chamfers enables the region of two adjacent first blind holes 211 to form an "I"-shaped support rib. Compared with other shapes, the "I"-shaped support rib has large lateral rigidity, strong bending resistance, and uniform force, which can provide a better support effect for the carcass 10.

[0045] The second group of blind holes opens at the second side surface 220, and the second group of blind holes includes a plurality of second blind holes 221 arranged at intervals. In specific settings, the number of the second group of blind holes can be 20, 25, 30, 35, 40, 45 or more, and the specific number of the second group of blind holes can be evenly arranged according to the circumference of the wheel body 200. The circle formed by connecting the centers of each second blind hole 221 forms a concentric circle with the carcass 10, and the area of ​​two adjacent second blind holes 221 plays a supporting role. The shape of the second blind hole 221 can be arbitrary. In the embodiment, the shape and size of the second blind holes 221 are set to be the same as those of the first blind holes 211, the number of the second blind holes 221 is also set to be the same as that of the first blind holes 211, and the circle formed by connecting the centers of each second blind hole 221 is the same size as the circle formed by connecting the centers of the first blind holes 211. Then, the area of ​​two adjacent second blind holes 221 is the same as the area of ​​two adjacent first blind holes 211 in size, shape and number, and the area provides the same support force for both sides of the wheel body 200, thereby ensuring the balance of both sides of the wheel body 200.

[0046] The first blind hole 211 and the second blind hole 221 are staggered, and the size of the second blind hole 221 is larger than the spacing between two adjacent first blind holes 211. The first blind hole 211 and the second blind hole 221 are opposite to each other to form an air flow hole 230. In the specific setting, the opening depth of the first blind hole 211 and the opening depth of the second blind hole 221 are usually half of the width of the wheel body 200, which not only ensures the balance of the two sides of the wheel body 200, but also ensures that the gas on both sides of the wheel body 200 can flow. The opening depth of the first blind hole 211 and the opening depth of the second blind hole 221 are not limited to half of the width of the wheel body 200, and it is sufficient to ensure that the air flow hole 230 is formed at the opposite part of the first blind hole 211 and the second blind hole 221. The air flow hole 230 makes the tire body 10 have good heat dissipation, and solves the problem that the previous pneumatic tires are prone to leakage and blowout.

[0047] The tire body 10 is provided with a staggered first group of blind holes and a second group of blind holes on opposite sides of the wheel body 200, thereby reducing the weight of the tire body 10, reducing the rolling resistance of the tire, and improving the safety of the vehicle during driving, and solving the problem that the existing solid tire tire body is heavy, has a large rolling resistance, and the safety performance cannot be guaranteed. The areas of the two adjacent second blind holes 221 and the areas of the two adjacent first blind holes 211 provide support forces for the two sides of the wheel body 200, respectively, and ensure the balance of the two sides of the wheel body 200. The air flow holes 230 formed by the opposite parts of the first blind holes 211 and the second blind holes 221 ensure that the air on both sides of the wheel body 200 can flow, so that the heat dissipation of the tire body 10 is good, and the problem that the conventional pneumatic tire body 10 is prone to leakage and tire burst during driving is solved, so that the safety performance of the tire body 10 is stable. The tire body 10 can be used as a tire alone, and can also be used in conjunction with an existing outer tire.

[0048] In order to improve the balance of the carcass 10, in a preferred embodiment, the projection of the area of ​​two adjacent first blind holes 211 on the second side 220 is located in the middle of the second blind holes 221. Through the above arrangement, it is ensured that the area of ​​the two adjacent first blind holes 211 and the area of ​​the two adjacent second blind holes 221 are alternately arranged on the first side 210 and the second side 220, respectively. When the carcass 10 is subjected to pressure due to the weight of the vehicle body, the area of ​​the two adjacent first blind holes 211 and the area of ​​the two adjacent second blind holes 221 provide uniform support force for the carcass 10 on the first side 210 and the second side 220, respectively, to ensure the balance of the carcass 10 and stabilize the safety performance of the carcass 10.

[0049] In order to reduce the weight of the tire body 10, a preferred embodiment is provided with a first group of grooves in the area of ​​two adjacent first blind holes 211, which reduces the weight of the tire body 10. The first group of grooves opens at the first side surface 210, and the first group of grooves includes a first groove 212, a second groove 213 and a third groove 214. The first groove 212 and the third groove 214 are arranged at intervals, and the second groove 213 connects the first groove 212 and the third groove 214, and the depth of the second groove 213 is less than that of the first groove 212 and the third groove 214. Therefore, there is a larger solid part between the first groove 212 and the third groove 214, which is beneficial to enhancing the support effect of the area of ​​the two adjacent first blind holes 211 while reducing the weight of the tire body 10. In specific configuration, the arrangement direction of the first groove 212, the second groove 213 and the third groove 214 is the same as the arrangement direction of the tread crown 100, the wheel body 200 and the wheel bottom 300. The shapes of the first groove 212, the second groove 213 and the third groove 214 can be arbitrary. In this embodiment, the shape and size of the first groove 212 are set to be the same as the third groove 214, and the width of the second groove 213 is smaller than the first groove 212 and the third groove 214. In order to enhance the weight reduction of the tire body 10, specifically, the first group of grooves also includes a fourth groove 215 and a fifth groove 216. The fourth groove 215 connects the first groove 212 and the tread crown 100, and the fifth groove 216 connects the third groove 214 and the wheel bottom 300. In specific configuration, the extension length of the fifth groove 216 on the wheel bottom 300 is generally half of the width of the wheel bottom 300, and the extension direction of the fifth groove 216 on the wheel bottom 300 is perpendicular to the center line of the fifth groove 216 on the wheel body 200. In order to reduce the weight of the carcass 10 while ensuring the balance of the carcass 10, more specifically, the projection of the center line of the first group of grooves on the second side surface 220 coincides with the center line of the second blind hole 221. Through the above arrangement, the first group of grooves is located in the middle area of ​​two adjacent first blind holes 211, and all the first group of grooves are evenly distributed in the circumferential direction of the wheel body 200, so that the supporting force provided by the area of ​​the two adjacent first blind holes 211 is evenly distributed on the first side surface 210, which is conducive to ensuring the balance of the carcass 10.

[0050] In order to reduce the weight of the tire body 10, a preferred embodiment is provided with a second group of grooves in the area of ​​two adjacent second blind holes 221, which reduces the weight of the tire body 10. The second group of grooves opens at the second side surface 220. The second group of grooves includes a sixth groove 222, a seventh groove 223 and an eighth groove 224. The sixth groove 222 and the eighth groove 224 are arranged at intervals. The seventh groove 223 connects the sixth groove 222 and the eighth groove 224, and the depth of the seventh groove 223 is less than that of the sixth groove 222 and the eighth groove 224. There are more solid parts between the sixth groove 222 and the eighth groove 224, which is beneficial to enhancing the support effect of the area of ​​the two adjacent second blind holes 221 while reducing the weight of the tire body 10. In the specific setting, the arrangement direction of the sixth groove 222, the seventh groove 223 and the eighth groove 224 is the same as the arrangement direction of the crown 100, the wheel body 200 and the wheel bottom 300. The shapes of the sixth groove 222, the seventh groove 223 and the eighth groove 224 can be arbitrary. In this embodiment, the shape and size of the sixth groove 222 are set to be the same as those of the eighth groove 224, and the width of the seventh groove 223 is smaller than that of the sixth groove 222 and the eighth groove 224.

[0051] In order to enhance the weight reduction of the tire body 10, specifically, the second group of grooves further includes a ninth groove 225 and a tenth groove 226, the ninth groove 225 connects the sixth groove 222 and the tire crown 100, and the tenth groove 226 connects the eighth groove 224 and the wheel bottom 300. In the specific setting, the extension length of the tenth groove 226 on the wheel bottom 300 is generally set to half the width of the wheel bottom 300, and the extension direction of the tenth groove 226 on the wheel bottom 300 is perpendicular to the center line of the tenth groove 226 on the wheel body 200. In order to reduce the weight of the tire body 10 while ensuring the balance of the tire body 10, more specifically, the projection of the center line of the second group of grooves on the first side surface 210 coincides with the center line of the first blind hole 211. Through the above setting, the second group of grooves is located in the middle area of ​​two adjacent second blind holes 221, and all the second group of grooves are evenly distributed in the circumferential direction of the wheel body 200, so that the support force provided by the area of ​​two adjacent second blind holes 221 is evenly distributed on the second side surface 220, which is conducive to ensuring the balance of the tire body 10.

[0052] Combination Figure 1 , Figure 3 , Figure 5 as well as Figure 6 As shown, in order to reduce the weight of the tire body 10 and make the thickness of the tire body 10 more uniform during the molding process, in a preferred embodiment, a plurality of longitudinal grooves 110 and a plurality of transverse grooves 120 are provided on the tire crown 100, thereby reducing the weight of the tire body 10, wherein:

[0053] A plurality of longitudinal grooves 110 are arranged at intervals, and the length of the longitudinal grooves 110 is the length of the crown 100. In a specific arrangement, the number of the longitudinal grooves 110 may be 2, 3, 4, 5 or more, and the longitudinal grooves 110 are evenly distributed in the width direction of the crown 100.

[0054] Multiple transverse grooves 120 are arranged at intervals, and the transverse grooves 110 are arranged along the width direction of the crown 100. In the specific arrangement, the positive projection of the transverse grooves 110 on the crown 100 is a "human" shape, and the tip of the transverse groove 110 faces in the clockwise direction. The number of transverse grooves 120 can be 20, 25, 30, 35 or more, and the transverse grooves 120 are evenly distributed in the length direction of the crown 100.

[0055] The above-mentioned tire body 10 is usually manufactured by injection molding. The tire body 10 is generally made of rubber material. During the cooling process of the rubber in the mold cavity, if there are no longitudinal grooves 110 and transverse grooves 120, the rubber is easy to flow and cause uneven product thickness. The material of the tire body 10 is not limited to rubber, and can be other materials for making a solid tire body.

[0056] In order to enhance the weight reduction of the carcass 10, specifically, a first connecting groove 240 and a second connecting groove 250 are provided on the wheel body 200, wherein:

[0057] The first connecting groove 240 opens at the first side surface 210 and connects the first blind hole 211 and the transverse groove 110 ;

[0058] The second connecting groove 250 opens at the second side surface 220 and connects the second blind hole 221 and the transverse groove 110 .

[0059] Another embodiment of the present invention also provides a tire, including an outer tire and a tire body as described in any of the above embodiments, wherein the tire body serves as an inner tire in conjunction with the outer tire, that is, the tire body 10 can also be used as an inner tire in conjunction with the corresponding outer tire to support the vehicle body and buffer external impact.

[0060] In the specific matching, the first matching hole matching with the second groove 213 is provided at the corresponding place of the outer tire, so that the second groove 213 of the tire body 10 is exposed to the air, so that the air in the tire body 10 can circulate with the outside air, which is convenient for the heat dissipation of the tire body 10, and the tire blowout and the like can be avoided, which is conducive to ensuring that the tire has stable safety performance; the second matching hole and the third matching hole matching with the fourth groove 215 and the fifth groove 216 can also be provided at the corresponding place of the outer tire, so that the fourth groove 215 and the fifth groove 216 of the tire body 10 are exposed to the air, so that the tire The air in the tire body 10 can circulate with the outside air to a greater extent, which accelerates the heat dissipation of the tire body 10, avoids tire blowout and the like, and helps to ensure that the tire has stable safety performance; and when the projection of the center line of the first group of grooves on the second side surface 220 coincides with the center line of the second blind hole 221, the fourth groove 215, the second groove 213 and the fifth groove 216 in the first group of grooves will be evenly spaced and distributed on the circumference of the wheel body 200, which helps to ensure the uniformity of the circulation between the gas in the tire body 10 and the outside gas, and helps to ensure that the tire has stable safety performance.

[0061] In order to make the tire body 10 used as an inner tube have better heat dissipation performance, in the specific matching, the outer tire is provided with a fourth matching hole matching with the seventh groove 223 at the corresponding place, so that the seventh groove 223 of the tire body 10 is exposed to the air, so that the air in the tire body 10 can circulate with the outside air, which is convenient for the heat dissipation of the tire body 10, and the tire blowout and the like can be avoided, which is conducive to ensuring that the tire has stable safety performance; the outer tire can also be provided with a fifth matching hole and a sixth matching hole matching with the ninth groove 225 and the tenth groove 226 at the corresponding place, so that the ninth groove 225 and the tenth groove 226 of the tire body 10 are exposed to the air. The tire body 10 is exposed to the air, so that the air in the tire body 10 can circulate with the outside air to a greater extent, accelerate the heat dissipation of the tire body 10, avoid tire blowout and the like, and help ensure that the tire has stable safety performance; and when the projection of the center line of the second group of grooves on the first side surface 210 coincides with the center line of the first blind hole 211, the ninth groove 225, the seventh groove 223 and the tenth groove 226 in the second group of grooves will also be evenly spaced and distributed in the circumferential direction of the wheel body 200, which is beneficial to ensure the uniformity of the circulation between the gas in the tire body 10 and the outside air, and help ensure that the tire has stable safety performance.

[0062] In order to further improve the heat dissipation performance of the tire body 10 used as an inner tube, when the tire body 10 provided with the first connecting groove 240 and the second connecting groove 250 is matched with the corresponding outer tire in specific use, the outer tire is provided with a seventh matching hole and an eighth matching hole matching with the first connecting groove 240 and the second connecting groove 250 at corresponding places, so that the first connecting groove 240 and the second connecting groove 250 of the tire body 10 are exposed to the air, so that the air in the tire body 10 can circulate with the outside air to a greater extent, accelerate the heat dissipation of the tire body 10, avoid tire blowout and the like, and help to ensure that the tire has stable safety performance.

[0063] In order to prevent relative sliding between the inner tire and the outer tire, the crown 100 of the tire 10 is provided with longitudinal grooves 110 and transverse grooves 120, so that the friction between the tire 10 and the outer tire is increased when the tire 10 is matched with the corresponding outer tire, making it difficult for the two to move relative to each other.

[0064] In the above tire, the carcass 10 is provided with staggered first and second blind holes on opposite sides of the wheel body 200, thereby reducing the weight of the carcass 10, reducing the rolling resistance of the tire, improving the safety of the vehicle during driving, and solving the problem that the carcass of the existing solid tire is heavy, has large rolling resistance, and the safety performance cannot be guaranteed. The areas of the two adjacent second blind holes 221 and the areas of the two adjacent first blind holes 211 provide support forces for the two sides of the wheel body 200, respectively, ensuring the balance of the two sides of the wheel body 200. The air flow holes 230 formed by the opposite parts of the first blind holes 211 and the second blind holes 221 ensure that the gas on both sides of the wheel body 200 can flow, so that the heat dissipation of the carcass 10 is good. Therefore, the above tire matched with the existing outer tire and the carcass also ensures good heat dissipation of the carcass, avoids tire blowout, etc., that is, increases the service life of the tire, and better ensures that the tire has stable safety performance.

[0065] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0066] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A carcass, It is characterized in that The invention comprises a crown, a wheel body and a wheel bottom which are arranged in sequence, wherein the wheel body is provided with a first group of blind holes and a second group of blind holes, and the wheel body has a first side surface and a second side surface which are arranged opposite to each other, wherein: The first group of blind holes is opened on the first side surface, and includes a plurality of first blind holes arranged at intervals. The first blind holes are set as square blind holes, and the edges and corners of the square blind holes are chamfered with the same size, so that the area of ​​two adjacent first blind holes forms an "I"-shaped support rib, and the area of ​​two adjacent first blind holes is provided with a first group of grooves, the first group of grooves is opened on the first side surface, the first group of grooves includes a first groove, a second groove, a third groove, a fourth groove and a fifth groove, the first groove is arranged at intervals with the third groove, the second groove is connected to the first groove and the third groove, the depth of the second groove is less than that of the first groove and the third groove, the fourth groove is connected to the first groove and the tread crown, and the fifth groove is connected to the third groove and the wheel bottom; The second group of blind holes opens at the second side surface and includes a plurality of second blind holes arranged at intervals, and the shapes of the second blind holes are the same as those of the first blind holes; The first blind hole and the second blind hole are staggered, the size of the second blind hole is larger than the distance between two adjacent first blind holes, and the first blind hole and the second blind hole face each other to form an air flow hole.

2. The carcass according to claim 1, It is characterized in that The projection of the regions of two adjacent first blind holes on the second side surface is located in the middle of the second blind hole.

3. The carcass according to claim 1, It is characterized in that A projection of a center line of the first group of grooves on the second side surface coincides with a center line of the second blind hole.

4. The carcass according to claim 1, It is characterized in that A second group of grooves is provided in the area of ​​two adjacent second blind holes, the second group of grooves is open on the second side, the second group of grooves includes a sixth groove, a seventh groove and an eighth groove, the sixth groove is spaced apart from the eighth groove, the seventh groove connects the sixth groove and the eighth groove, and the depth of the seventh groove is smaller than that of the sixth groove and the eighth groove.

5. The carcass according to claim 4, It is characterized in that The second group of grooves further includes a ninth groove and a tenth groove, wherein the ninth groove is connected to the sixth groove and the tread crown, and the tenth groove is connected to the eighth groove and the wheel bottom.

6. The carcass according to claim 5, It is characterized in that A projection of a center line of the second group of grooves on the first side surface coincides with a center line of the first blind hole.

7. The carcass according to any one of claims 1 to 6, It is characterized in that The crown is provided with a plurality of longitudinal grooves and a plurality of transverse grooves, wherein: A plurality of the longitudinal grooves are arranged at intervals, and the length of the longitudinal grooves is the circumference of the crown; A plurality of the transverse grooves are arranged at intervals, and the transverse grooves are arranged along the width direction of the crown.

8. The carcass according to claim 7, It is characterized in that The wheel body is provided with a first connecting groove and a second connecting groove, wherein: The first connecting groove opens at the first side surface and connects the first blind hole and the transverse groove; The second communicating groove opens at the second side surface and communicates with the second blind hole and the transverse groove.

9. A vehicle tire, comprising a tire cover, It is characterized in that It also includes the tire body as described in claims 1-8, and the tire body serves as an inner tire to cooperate with the outer tire.

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