CN218084956U - 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 solid annular inner tube, and the internal surface of inner tube is equipped with a plurality of first recesses, and a plurality of first recesses set up along the circumference interval of inner tube, form the elastic support portion between two adjacent first recesses, and the surface of inner tube sets up with the internal surface of inner tube relatively, and the elastic support portion is used for supporting the surface of inner tube, and the minimum thickness of elastic support portion is not less than 5mm. According to the inflation-free inner tube, the plurality of first grooves are formed in the inner surface of the inner tube, so that on one hand, raw materials required for producing 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 outer surface of the inner tube is supported by the elastic supporting part between the adjacent first grooves, so that the elasticity of the inner tube is increased, and the comfort and the stability of the vehicle in the running process are improved.

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 broken, the air in the air tube leaks and the air pressure is reduced, so that the vehicle cannot run and even the life is threatened.

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 internal surface of inner tube of a tyre is equipped with a plurality of first recesses, and is a plurality of first recess is followed the circumference interval of inner tube of a tyre sets up, adjacent two form the elastic support portion between the first recess, the surface of inner tube of a tyre with the internal surface of inner tube sets up relatively, the elastic support portion is used for supporting the surface of inner tube of a tyre, the minimum thickness of elastic support portion is not less than 5mm.

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 inner surface of the inner tube is provided with the plurality of first grooves, 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 outer surface of the inner tube is supported by the elastic supporting part between the adjacent first grooves, so that the elasticity of the inner tube is increased, and the comfort and the stability of the vehicle in the running process are improved.

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

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

In one embodiment, the minimum distance between the bottom wall of the first groove and the outer surface of the inner tube is not less than 5mm, and the minimum distance between the side wall of the first groove and the corresponding side surface of the inner tube is not less than 5mm.

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

In one embodiment, the second 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 second grooves, the second grooves on the first side surface are opposite to the second grooves on the second side surface, and the second grooves on the first side surface and the second grooves on the second side surface are in one-to-one correspondence.

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

In one embodiment, the outer surface of the inner tube is provided with an antiskid pattern, and the antiskid pattern is used for matching with the outer tire to prevent skidding.

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 inner surface of the inner tube is provided with the plurality of first grooves, 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 outer surface of the inner tube is supported by the elastic supporting part between the adjacent first grooves, so that the elasticity of the inner tube is increased, and the comfort and the stability of the vehicle in the running process are improved.

Drawings

FIG. 1 is a perspective view of an inner tube in one embodiment;

FIG. 2 is a perspective view of an inner tube in another embodiment;

FIG. 3 is a front view of an inner tube in one embodiment;

FIG. 4 is a side view of an inner tube according to one embodiment;

FIG. 5 is a side view of an inner tube in another embodiment;

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

FIG. 7 is a partial cross-sectional view of an inner tube in one embodiment.

Reference numbers: 100. an inner tube; 10. an inner surface; 20. a first side; 30. a second side surface; 40. an outer surface; 50. a first groove; 60. a second 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 invention may be embodied in many other forms different from those described herein and similar modifications may be made by those skilled in the art without departing from the spirit and scope of the invention and, therefore, the invention is not to be limited to the specific embodiments disclosed below.

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

As shown in fig. 1 to 5, in an embodiment, an inflation-free inner tube 100 is provided, which includes an inner tube 100, the inner tube 100 is a solid ring-shaped inner tube 100, an inner surface 10 of the inner tube 100 is provided with a plurality of first grooves 50, the plurality of first grooves 50 are arranged at intervals along a circumferential direction of the inner tube 100, an elastic support 80 is formed between two adjacent first grooves 50, an outer surface 40 of the inner tube 100 is arranged opposite to the inner surface 10 of the inner tube 100, the elastic support 80 is used for supporting the outer surface 40 of the inner tube 100, and a minimum thickness of the elastic support 80 is not less than 5mm.

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 plurality of first grooves 50 are formed in the inner surface 10 of the inner tube 100, so that on one hand, raw materials required for producing 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 outer surface 40 of the inner tube 100 is supported by the elastic support portion 80 between the adjacent first grooves 50, so that the elasticity of the inner tube 100 is increased, and the comfort and the stability of the vehicle in the driving process are improved.

Specifically, in one embodiment, the tire 100 is a non-foam rubber tire. The solid inner tube 100 is made of the non-foaming rubber material, and the non-foaming rubber material has better rebound resilience, wear resistance and high temperature resistance than the foaming material, so that the inner tube 100 can obtain good rebound resilience, wear resistance and high temperature resistance without being inflated, the situations of softening and cracking of the foaming material inner tube 100 in the high-speed friction process do not exist, the service life of the non-inflating inner tube 100 is effectively prolonged, and the use cost of the inner tube 100 is saved. However, the specific gravity of the rubber material is relatively large, and the plurality of first grooves 50 are formed in the inner surface 10 of the inner tube 100, so that on one hand, rubber raw materials required for producing 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 outer surface 40 of the inner tube 100 is supported by the elastic support portion 80 between the adjacent first grooves 50, so that 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.

Specifically, as shown in fig. 1, 6 and 7, in one embodiment, the plurality of first grooves 50 are uniformly spaced along the circumference of the inner tube 100. Because first recess 50 evenly spaced sets up, the thickness of the elastic support portion 80 between a plurality of adjacent first recesses 50 equals, and a plurality of elastic support portions 80 also set up along the even interval of circumference of inner tube 100, and consequently, a plurality of elastic support portions 80 are the same to the inner tube 100 support ability of different positions, and are also the same to external pressure's bearing capacity, are favorable to improving the stability of vehicle in the driving process to reduce unnecessary vibrations.

Specifically, as shown in fig. 1, 6 and 7, in one embodiment, the minimum distance between the bottom wall of the first groove 50 and the outer surface 40 of the tire 100 is no less than 5mm, and the minimum distance between the side wall of the first groove 50 and the corresponding side surface of the tire 100 is no less than 5mm.

As shown in fig. 7, the minimum distance between the bottom wall of the first groove 50 and the upper outer surface 40 of the tire 100 is L1, the minimum distance between the sidewall of the first groove 50 and the corresponding side surface of the tire 100 is L2, and the thickness of the elastic support 80 is L3, so L1> =5mm, L2> =5mm, L3> =5mm. The first groove 50 serves to reduce the weight of the tube 100 and improve the elasticity of the tube 100, so that the tube 100 has a good buffer force, but if the first groove 50 is oversized, the wall thickness of the tube 100 is reduced, thereby reducing the capacity of the tube 100 to withstand external pressure. Therefore, the minimum distance between the bottom wall of the first groove 50 and the outer surface 40 of the inner tube 100 is controlled to be greater than or equal to 5mm, the minimum distance between the side wall of the first groove 50 and the corresponding side surface of the inner tube 100 is controlled to be greater than or equal to 5mm, and the minimum thickness of the elastic support portion 80 is controlled to be greater than or equal to 5mm, so that the stiff shape of the inner tube 100 is maintained, and the bearing capacity of the inner tube 100 to external pressure is ensured.

The first groove 50 has a first side wall and a second side wall, the inner tube 100 has a first side surface 20 and a second side surface 30, the first side wall is close to the first side surface 20, the second side wall is close to the second side surface 30, the minimum distance between the side wall of the first groove 50 and the corresponding side surface of the inner tube 100 is the minimum distance between the first side wall and the first side surface 20, and the minimum distance between the second side wall and the second side surface 30. Therefore, the minimum distance between the first side wall and the first side surface 20 is 5mm or more, and the minimum distance between the second side wall and the second side surface 30 is 5mm or more.

Specifically, as shown in fig. 1, 6 and 7, in one embodiment, the cross section of the first groove 50 perpendicular to the radial direction of the inner tube 100 is square, circular or polygonal. It is understood that the cross-sectional shape of the first groove 50 may be set arbitrarily, as long as the requirement of the inner tube 100 for bearing capacity, i.e. L1> =5mm, L2> =5mm, L3> =5mm, is satisfied, and is not limited herein.

Specifically, as shown in fig. 2 and 5, in one embodiment, a plurality of second grooves 60 are provided on the side surface of the inner tube 100, and the second grooves 60 are spaced along the circumference of the inner tube 100. The second groove 60 serves to support the sidewall of the tube 100 and further improve the elasticity of the sidewall of the tube 100.

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

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

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

In this embodiment, the minimum distance L3 between the sidewall of the first groove 50 and the corresponding side surface of the tire 100 is the distance between the sidewall of the first groove 50 and the bottom wall of the second groove 60, and the distance is not less than 5mm, so as to ensure the pressure-bearing capacity of the sidewall of the tire 100.

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

Specifically, as shown in fig. 1, 2, 3 and 5, in one embodiment, the outer surface 40 of the tire 100 is provided with a skid-resistant pattern 70, and the skid-resistant pattern 70 is used for cooperating with the tire casing to prevent skidding. The anti-slip pattern 70 may be a raised pattern or a recessed pattern for abutting against the inner surface 10 of the tire casing, thereby increasing the frictional force between the tire tube 100 and the tire casing and preventing slipping between the tire tube 100 and the tire casing.

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

As shown in fig. 1 to 5, in one embodiment, a wheel is provided, which includes a hub, an outer tire 100, and an inflation-free inner tube 100, wherein the inner tube 100 is sleeved on the hub, so that the inner surface 10 of the inner tube 100 abuts against the outer surface 40 of the hub, and the outer tire is sleeved on the inner tube 100, so that the inner surface 10 of the outer tire abuts against the outer surface 40 of the inner tube 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 plurality of first grooves 50 are formed in the inner surface 10 of the inner tube 100, so that on one hand, raw materials required for producing 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 outer surface 40 of the inner tube 100 is supported by the elastic support portion 80 between the adjacent first grooves 50, so that the elasticity of the inner tube 100 is increased, and the comfort and the stability of the vehicle in the driving process are improved.

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 orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for 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 thus, 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 to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited 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 connected internally or in any other suitable relationship, unless expressly stated otherwise. 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. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique 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 internal surface of inner tube of a tyre is equipped with a plurality of first recesses, and is a plurality of first recess is followed the circumference interval of inner tube of a tyre sets up, adjacent two form the elastic support portion between the first recess, the surface of inner tube of a tyre with the internal surface of inner tube of a tyre sets up relatively, the elastic support portion is used for supporting the surface of inner tube of a tyre, the minimum thickness of elastic support portion is not less than 5mm.

2. The tube according to claim 1, wherein the first grooves are arranged at regular intervals in the circumferential direction of the tube.

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

4. The non-pneumatic tube of claim 1, wherein the minimum distance between the bottom wall of the first groove and the outer surface of the tube is no less than 5mm, and the minimum distance between the sidewall of the first groove and the corresponding side of the tube is no less than 5mm.

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

6. The tube according to claim 5, wherein the second grooves are arranged at regular intervals in the circumferential direction of the tube.

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

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

9. An inflation-free inner tube according to any one of claims 1 to 8, wherein the outer surface of the inner tube is provided with anti-slip patterns for cooperating with an outer tube to prevent slipping.

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.

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