CN218084955U - Non-inflatable inner tube and wheel - Google Patents

Abstract

The utility model relates to an exempt from to aerify inner tube of a tyre and wheel. The inner tube is a solid annular inner tube, a hollow hole is formed in the inner tube and penetrates through the inner tube along the circumferential direction of the inner tube to form an annular hollow hole, anti-skid patterns are arranged on the outer surface of the inner tube and are used for being matched with the outer tube to prevent skidding. The inflation-free inner tube adopts the solid inner tube, the inner tube does not need to be inflated, good rebound resilience, wear resistance and high temperature resistance can be obtained, the safety problem caused by air leakage does not exist, the service life of the inflation-free inner tube is effectively prolonged, and the use cost of the inner tube is saved. The annular hollow hole is formed in the inner tube, so that on one hand, raw materials required by the production of the inner tube can be reduced, the production cost is reduced, and the weight of the inner tube is reduced; on the other hand, the elasticity of the inner tube is increased, and the comfort and the stability of the vehicle in the running process are improved. Simultaneously, the anti-skidding decorative pattern can increase the frictional force between the inner tube of a tyre and the cover tire, prevents the mutual relative slip between the inner tube of a tyre and the cover tire.

Description

Non-inflatable inner tube and wheel

Technical Field

The utility model relates to the technical field of auto-parts, especially relate to exempt from to aerify inner tube of a tyre and wheel.

Background

With the increasing awareness of environmental protection, zero-emission vehicles such as bicycles, mopeds and electric vehicles become common vehicles for people. The wheels of these vehicles generally include a hub, an outer tube that fits over the hub, and an inner tube that surrounds the inner tube. The traditional wheel adopts an inflatable inner tube, and the comfort, the stability and the safety of the running of the vehicle are ensured by inflating the sealed inner tube and keeping specific air pressure. However, when the air tube is easily punctured or the air valve is in failure, the air in the air tube leaks and the air pressure is reduced, so that the vehicle cannot run and is even dangerous to life.

The prior inflation-free inner tube adopts a foaming material to manufacture wheels, and the wheels made of the foaming material have poor wear resistance and poor elastic recovery performance, and cannot meet the comfort and stability required by vehicle operation.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide an inflation-free inner tube and a wheel, which are directed to the problems of low safety and stability of the conventional wheel.

The utility model provides an exempt from to aerify inner tube of a tyre, includes the inner tube of a tyre, the inner tube of a tyre is solid annular inner tube of a tyre, the inside of inner tube of a tyre is equipped with the hollow hole, the hollow hole is followed the circumference of inner tube of a tyre runs through the inner tube of a tyre forms annular hollow hole, be equipped with anti-skidding decorative pattern on the surface of the inner tube of a tyre, anti-skidding decorative pattern be used for with cover tire cooperation antiskid.

The inflation-free inner tube adopts the solid inner tube, the inner tube does not need to be inflated, good rebound resilience, wear resistance and high temperature resistance can be obtained, the safety problem caused by air leakage does not exist, the service life of the inflation-free inner tube is effectively prolonged, and the use cost of the inner tube is saved. The annular hollow hole is formed in the inner tube, so that on one hand, raw materials required by the production of the inner tube can be reduced, the production cost is reduced, and the weight of the inner tube is reduced; on the other hand, the elasticity of the inner tube is increased, and the comfort and the stability of the vehicle in the running process are improved. Meanwhile, the anti-skid patterns can increase the friction force between the inner tube and the outer tube and prevent the relative sliding between the inner tube and the outer tube.

In one embodiment, the hollow holes are provided in plurality, the axes of the plurality of hollow holes are arranged in parallel, and the side wall between two adjacent hollow holes forms an elastic supporting part.

In one embodiment, the minimum thickness of the elastic support part is not less than 4mm.

In one embodiment, the minimum distance between the side wall of the hollow hole and the outer surface of the inner tube is not less than 5mm.

In one embodiment, a plurality of grooves are formed in the side surface of the inner tube, and the grooves are arranged at intervals along the circumferential direction of the inner tube.

In one embodiment, a plurality of the grooves are uniformly spaced along the circumference of the inner tube.

In one embodiment, two opposite side surfaces on the inner tube are a first side surface and a second side surface, the first side surface is provided with a plurality of grooves, the second side surface is provided with a plurality of grooves, the grooves on the first side surface are opposite to the grooves on the second side surface, and the grooves on the first side surface are in one-to-one correspondence with the grooves on the second side surface.

In one embodiment, the depth direction of the groove is perpendicular to the side surface of the inner tube, and the depth of the groove is 2-5 mm.

In one embodiment, the inner tube is a non-foamed rubber inner tube.

The utility model provides a wheel, include wheel hub, cover tire and exempt from to aerify the inner tube of a tyre, the inner tube of a tyre cover is established on the wheel hub, make the inner surface of the inner tube of a tyre with the surface butt of wheel hub, the cover tire cover is established on the inner tube of a tyre, make the inner surface of cover tire with the surface butt of the inner tube of a tyre.

The wheel adopts the solid inner tube, the inner tube does not need to be inflated, good rebound resilience, wear resistance and high temperature resistance can be obtained, the safety problem caused by air leakage does not exist, the service life of the inflation-free inner tube is effectively prolonged, and the use cost of the inner tube is saved. The annular hollow hole is formed in the inner tube, so that on one hand, raw materials required by the production of the inner tube can be reduced, the production cost is reduced, and the weight of the inner tube is reduced; on the other hand, the elasticity of the inner tube is increased, and the comfort and the stability of the vehicle in the running process are improved. Meanwhile, the anti-skid patterns can increase the friction force between the inner tube and the outer tube and prevent the relative sliding between the inner tube and the outer tube.

Drawings

FIG. 1 is a perspective view of an embodiment of an inflation-free inner tube;

FIG. 2 is a perspective view of a non-pneumatic inner tube in another embodiment;

FIG. 3 is a front view of an embodiment of the inflation-free inner tube;

FIG. 4 is a side view of an embodiment of a non-pneumatic tire;

FIG. 5 is a side view of another embodiment of a non-pneumatic tire;

FIG. 6 is a cross-sectional view of a non-pneumatic inner tube in one embodiment;

FIG. 7 is an enlarged partial view of an embodiment of the inflation-free inner tube;

FIG. 8 is a cross-sectional view of an embodiment of the inflation-free inner tube.

Reference numbers: 100. an inner tube; 10. an inner surface; 20. a first side surface; 30. a second side surface; 40. an outer surface; 50. a hollow bore; 60. a groove; 70. anti-skid patterns; 80. an elastic support part.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

The inflation-free inner tube 100 and the wheel in some embodiments will be described in detail with reference to the drawings.

As shown in fig. 1 to 5, in an embodiment, an inflation-free inner tube 100 is provided, and includes an inner tube 100, where the inner tube 100 is a solid annular inner tube 100 made of a non-foamed rubber material, a hollow hole 50 is provided inside the inner tube 100, the hollow hole 50 penetrates the inner tube 100 along a circumferential direction of the inner tube 100 to form an annular hollow hole 50, an anti-skid pattern 70 is provided on an outer surface of the inner tube 100, and the anti-skid pattern 70 is used for cooperating with an outer tire to prevent skidding.

The inflation-free inner tube 100 adopts the solid inner tube 100, the inner tube 100 can obtain good rebound resilience, wear resistance and high temperature resistance without inflation, the safety problem caused by air leakage does not exist, the service life of the inflation-free inner tube 100 is effectively prolonged, and the use cost of the inner tube 100 is saved. The annular hollow hole 50 is formed in the inner tube 100, so that on one hand, raw materials required by the production of the inner tube 100 can be reduced, the production cost is reduced, and the weight of the inner tube 100 is reduced; on the other hand, the elasticity of the inner tube 100 is increased, and the comfort and the stability of the vehicle in the driving process are improved. Meanwhile, the anti-slip pattern 70 can increase the friction force between the inner tube 100 and the outer tube, and prevent the relative sliding between the inner tube 100 and the outer tube.

The anti-slip pattern 70 may be a raised pattern or a recessed pattern 60, and is configured to abut against the inner surface 10 of the tire casing, thereby increasing the friction between the tire tube 100 and the tire casing and preventing the tire tube 100 from slipping.

In this embodiment, the anti-slip pattern 70 is a plurality of V-shaped grooves uniformly spaced along the circumference of the tire 100 on the outer surface 40 of the tire 100.

Specifically, as shown in fig. 6, 7 and 8, in one embodiment, the hollow hole 50 is provided in plurality, the axes of the plurality of hollow holes 50 are arranged in parallel, and the side wall between two adjacent hollow holes 50 forms the elastic support 80. The plurality of hollow holes 50 are advantageous to improve the elasticity of the inner tube 100, and the inner tube 100 maintains a firm shape by the elastic support 80 between the plurality of hollow holes, thereby improving the capacity of the inner tube 100 to bear external pressure.

Specifically, as shown in fig. 8, in one embodiment, the minimum thickness of the elastic support portion 80 is not less than 4mm. The minimum thickness of the elastic support portion 80 is L2, L2> =4mm. The minimum thickness of the elastic support portion 80 is greater than or equal to 4mm, which is beneficial to improving the bearing capacity of the inner tube 100 to the external pressure.

Specifically, as shown in fig. 7, in one embodiment, the minimum distance between the side wall of the hollow hole and the surface of the inner tube 100 is not less than 5mm. The surface of the tire 100 refers to the surface opposite to the sidewall of the hollow hole, that is, the surface of the tire 100 includes an inner surface 10, an outer surface 40, a first side surface 20 and a second side surface 30, wherein the inner surface 10 and the outer surface 40 are oppositely arranged, and the first side surface 20 and the second side surface 30 are oppositely arranged. The minimum distance between the side walls of the hollow hole and the surface of the inner tube 100, i.e., the minimum distance between the side walls of the hollow hole and the outer surface 40, the inner surface 10, the first side surface 20 and the second side surface 30 of the inner tube 100.

The hollow hole 50 is used to reduce the weight of the inner tube and improve the elasticity of the inner tube, so that the inner tube has a good buffer force, but if the hollow hole 50 is excessively large, the wall thickness of the inner tube is reduced, thereby reducing the bearing capacity of the inner tube to external pressure. Therefore, the minimum distance between the side wall of the hollow hole 50 and the surface of the inner tube is controlled to be more than or equal to 5mm, so that the firm shape of the inner tube is maintained, and the bearing capacity of the inner tube to external pressure is ensured.

In this embodiment, as shown in fig. 7, the minimum distance between the sidewall of the hollow hole 50 and the surface of the inner tube 100 is L1, L1> =5mm.

The cross section of the hollow hole 50 along the radial direction of the inner tube 100 is square, circular or polygonal. It can be understood that the cross-sectional shape of the hollow hole 50 can be set at will as long as the requirement of the inner tube 100 on the bearing capacity can be met, i.e. L1> =5mm, and L2> =4mm.

Specifically, as shown in fig. 2 and 5, in one embodiment, a plurality of grooves 60 are provided on a side surface of the inner tube 100, and the plurality of grooves 60 are spaced along a circumferential direction of the inner tube 100. The grooves 60 serve to support the sidewalls of the tube 100 and further improve the elasticity of the sidewalls of the tube 100.

Specifically, as shown in fig. 2 and 5, in one embodiment, a plurality of the grooves 60 are uniformly spaced along the circumference of the inner tube 100. The uniformly distributed grooves 60 allow the supporting force to be uniformly distributed along the circumference of the inner tube 100, thereby improving the stability of the wheel operation.

Specifically, as shown in fig. 2, 5 and 7, in an embodiment, two opposite side surfaces of the inner tube 100 are a first side surface 20 and a second side surface 30, the first side surface 20 is provided with a plurality of grooves 60, the second side surface 30 is provided with a plurality of grooves 60, the grooves 60 on the first side surface 20 are opposite to the grooves 60 on the second side surface 30, and the grooves 60 on the first side surface 20 correspond to the grooves 60 on the second side surface 30 one to one. The grooves 60 are symmetrically distributed on the first side surface and the second side surface, so that the bearing capacity of the first side surface 20 and the second side surface 30 of the inner tube 100 is symmetrically distributed, and the stability and the comfort of the operation of the inner tube 100 are facilitated.

Specifically, as shown in fig. 2, 5 and 7, in one embodiment, the depth direction of the groove 60 is perpendicular to the side surface of the tire 100, and the depth of the groove 60 is 2mm to 5mm.

In this embodiment, the minimum distance L2 between the sidewall of the hollow hole 50 and the surface of the inner tube 100 is the distance between the sidewall of the hollow hole 50 and the bottom wall of the groove 60, and the distance is not less than 5mm, so as to ensure the pressure bearing capacity of the sidewall of the inner tube 100.

Wherein, the cross-sectional shape of the groove 60 parallel to the first side surface 20 or the second side surface 30 is circular, square or polygonal.

Specifically, as shown in fig. 1, 2, 3 and 5, in one embodiment, the inner tube 100 is a non-foamed rubber inner tube. The solid inner tube 100 made of the non-foamed rubber material has better rebound resilience, wear resistance and high temperature resistance than the foamed material, so that the inner tube 100 can obtain good rebound resilience, wear resistance and high temperature resistance without being inflated, the conditions that the inner tube 100 made of the foamed material is softened and broken in the high-speed friction process do not exist, the service life of the non-inflated inner tube 100 is effectively prolonged, and the use cost of the inner tube 100 is saved. But the specific gravity of the non-foaming rubber material is larger, and the annular hollow hole 50 is arranged in the inner tube 100, so that on one hand, the rubber raw materials required by the production of the inner tube 100 can be reduced, the production cost is reduced, and the weight of the inner tube 100 is reduced; on the other hand, the elasticity of the inner tube 100 is increased, and the comfort and the stability of the vehicle in the driving process are improved.

Wherein the specific gravity of the non-foaming rubber material is 1-1.2, and the non-foaming rubber material is synthesized by one or more of Natural Rubber (NR), styrene Butadiene Rubber (SBR) and Butadiene Rubber (BR). The specific gravity of the foaming material is less than 1, the foaming material is prepared by adding a foaming agent into the material, and micro-bubbles are generated in the rubber by utilizing the foaming characteristic of the foaming material during high-temperature vulcanization. Therefore, the solid inner tube 100 made of rubber material has good resilience, wear resistance and high temperature resistance.

As shown in fig. 1 to 5, in an embodiment, a wheel is provided, which includes a hub, an outer tire and an inflation-free inner tire 100, wherein the inner tire 100 is sleeved on the hub, so that the inner surface 10 of the inner tire 100 abuts against the outer surface 40 of the hub, and the outer tire is sleeved on the inner tire 100, so that the inner surface 10 of the outer tire abuts against the outer surface 40 of the inner tire 100.

The wheel adopts the solid inner tube 100, the inner tube 100 can obtain good rebound resilience, wear resistance and high temperature resistance without inflation, the safety problem caused by air leakage does not exist, the service life of the inflation-free inner tube 100 is effectively prolonged, and the use cost of the inner tube 100 is saved. The annular hollow hole 50 is formed in the inner tube 100, so that on one hand, raw materials required by the production of the inner tube 100 can be reduced, the production cost can be reduced, and the weight of the inner tube 100 can be reduced; on the other hand, the elasticity of the inner tube 100 is increased, and the comfort and the stability of the vehicle in the driving process are improved. Meanwhile, the anti-slip pattern 70 can increase the friction force between the inner tube 100 and the outer tube, and prevent the relative sliding between the inner tube 100 and the outer tube.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. The utility model provides an exempt from to aerify inner tube of a tyre, its characterized in that, the inner tube of a tyre is solid annular inner tube of a tyre, the inside of inner tube of a tyre is equipped with the hollow hole, the hollow hole is followed the circumference of inner tube of a tyre runs through the inner tube of a tyre forms annular hollow hole, be equipped with anti-skidding decorative pattern on the surface of inner tube of a tyre, anti-skidding decorative pattern is used for cooperating antiskid with the cover tire.

2. The non-pneumatic inner tube according to claim 1, wherein the hollow holes are provided in plurality, the axes of the plurality of hollow holes are arranged in parallel, and the side wall between two adjacent hollow holes forms an elastic support.

3. A tube according to claim 2, in which the minimum thickness of the resilient support is not less than 4mm.

4. The non-pneumatic tire of claim 1, wherein the minimum distance between the sidewall of the hollow hole and the tire surface is not less than 5mm.

5. The non-inflatable inner tube according to claim 1, wherein a plurality of grooves are provided on the side surface of the inner tube, and the plurality of grooves are provided at intervals along the circumferential direction of the inner tube.

6. The tube of claim 5, wherein the plurality of grooves are evenly spaced in the circumferential direction of the tube.

7. The non-inflatable inner tube according to claim 5, wherein the two opposite sides of the inner tube are a first side and a second side, the first side is provided with a plurality of grooves, the second side is provided with a plurality of grooves, the grooves of the first side are opposite to the grooves of the second side, and the grooves of the first side are in one-to-one correspondence with the grooves of the second side.

8. The non-inflatable inner tube of claim 5, wherein the depth direction of the groove is perpendicular to the side surface of the inner tube, and the depth of the groove is 2mm to 5mm.

9. The inflation-free inner tube of claim 1, wherein the inner tube is a non-foam rubber inner tube.

10. A wheel comprising a hub, a cover and an inflation-free inner tube as claimed in any one of claims 1 to 9, wherein the inner tube is mounted to the hub such that the inner surface of the inner tube abuts the outer surface of the hub, and the cover is mounted to the inner tube such that the inner surface of the cover abuts the outer surface of the inner tube.

Images