CN212472964U

CN212472964U - Support body gasket suitable for tire support body

Info

Publication number: CN212472964U
Application number: CN202020926767.8U
Authority: CN
Inventors: 邱磊; 孙菊馨; 高培; 郁岑
Original assignee: Anhui Giti Radial Tire Co Ltd
Current assignee: Anhui Giti Radial Tire Co Ltd
Priority date: 2020-05-26
Filing date: 2020-05-26
Publication date: 2021-02-05
Anticipated expiration: 2030-05-26

Abstract

The utility model discloses a support body gasket suitable for a tire support body, the support body gasket is arranged between the support body of the tire and the rim of the tire, the support body is arranged in the cover tyre of the tire, the hardness of the support body gasket is 50-56HA, and the rebound resilience is more than or equal to 30%; the circular surface of the support body gasket facing the support body is provided with a concave groove for connecting the inner circular plate of the support body to the support body gasket; a circumferential inflation groove corresponding to the valve hole in the rim is formed in the circular surface, facing the rim, of the support body gasket; and an inflation through hole which is butted with the inflation groove on the support body is arranged on the support body gasket along the circumferential direction of the support body gasket, and the inflation through hole is communicated with the circumferential inflation groove through a transverse groove. The utility model discloses prescribe a limit to the hardness of supporter packing ring, guarantee the simple and easy degree and the performance of product assembly, prescribe a limit to the resilience simultaneously to guarantee can produce the compression when the assembly.

Description

Support body gasket suitable for tire support body

Technical Field

The utility model belongs to the technical field of the tire, concretely relates to be suitable for supporter packing ring of tire support body.

Background

At present, urban rail transit construction with the characteristics of energy conservation, quickness and large traffic volume is more and more concerned by a plurality of cities, and as smooth, efficient and reliable traffic trip is not only the basis for a traveler to select a trip mode, but also is the target pursued by an urban traffic manager, urban rail transit becomes an important component of urban public transport by virtue of the characteristics of quickness, convenience, safety, large traffic volume, high transportation efficiency and the like; the light rail is used as one of urban rail transit, and nowadays, more and more cities start to use the light rail to replace subways, and compared with subways, the light rail has lower construction cost and lower required severity, so that the utilization rate of the light rail is higher and higher, and the safety performance of the light rail is also more and more emphasized.

At present, because the light rail has no inner tire, the support body is used together with the outer tire, and in order to ensure that the tire can still continuously run under the decompression state, the support body, the outer tire and the rim are often used together through the support body gasket, so the qualified support body gasket is particularly important for the light rail.

SUMMERY OF THE UTILITY MODEL

The object of the present invention is to provide a support body gasket for a tire support body, which overcomes the above-mentioned technical problems.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a support body gasket for a tire support body, the support body gasket being provided between a support body of a tire and a rim of the tire, the support body being provided in an outer casing of the tire,

the support gasket HAs the hardness of 50-56HA and the rebound resilience of more than or equal to 30 percent;

the circular surface of the support body gasket facing the support body is provided with a concave groove for connecting the inner circular plate of the support body to the support body gasket;

a circumferential inflation groove corresponding to the valve hole in the rim is formed in the circular surface, facing the rim, of the support body gasket;

and an inflation through hole which is butted with the inflation groove on the support body is arranged on the support body gasket along the circumferential direction of the support body gasket, and the inflation through hole is communicated with the circumferential inflation groove through a transverse groove.

Further, the width W of the inner circular plate of the support body₂Width W of the groove₁Have the following relationship between: w is not less than 1mm₂-W₁≤3mm。

Further, the width W of the circumferential inflation groove is 25mm-35 mm.

Further, a width W of a circular surface of the supporter gasket facing the rim₃A bonding width W of the rim₄And a bead width W of the outer tire₅Have the following relationship between: w is not less than 1₃-(W₄-2*W₅)≤4mm。

Furthermore, the parts, attached to the outer tire, of the two side faces of the support gasket are uniformly inclined on the cross section, and the angle a between the inclined plane and the horizontal line on the cross section is more than or equal to 91 degrees and less than or equal to 95 degrees.

Furthermore, the tensile strength of the support body gasket is more than or equal to 14Mpa, and the elongation at break is more than or equal to 250%.

Has the advantages that:

the utility model limits the hardness of the supporting body gasket, ensures the simple degree and the service performance of product assembly, and limits the rebound resilience to ensure that the supporting body gasket can be compressed during assembly;

in the utility model, the supporting body gasket is designed to form a circumferential inflation groove and a ventilation through hole for inflating the outer tire, and a concave groove assembled with the supporting body is formed;

the utility model limits the width of the circumferential inflation groove, ensures the strength of the support body gasket while ensuring the inflation efficiency, and reduces the occurrence of bending deformation of the circumferential inflation groove;

the utility model discloses go on concave groove and disc width, ensure with the interference fit of supporter, ensure the stability of supporter simultaneously.

Drawings

FIG. 1 is a schematic view of the present invention assembled with a cover tire and a rim;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 2;

in the figure: 1. a support body gasket; 11. a concave groove; 12. a circumferential inflation groove; 13. an inflation through hole; 14. a transverse slot; 2. a support body; 3. a rim; 4. an outer tire.

Detailed Description

In the description of the present invention, unless otherwise specified, the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships only for the purpose of describing the present invention and simplifying the description, but do not indicate or imply that the device or structure referred to must have a particular orientation and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1, the present invention provides a support body gasket for a tire support body, the support body gasket is disposed between a support body of a tire and a rim of the tire, and the support body is disposed in an outer tire of the tire.

Firstly, limiting physical parameters of the support body gasket, wherein the hardness (Shore A type) of the support body gasket is 50-56HA, so as to ensure the simple degree of product assembly and ensure the service performance of the product; the rebound resilience of the support body gasket is more than or equal to 30 percent, the support body gasket can be compressed during assembly, and the rebound resilience of the product cannot be lower than 30 percent in order to ensure the shape of the assembled product; in order to ensure the service life of the product, the tensile strength of the product is not less than 14Mpa, and the elongation at break is not less than 250%.

Secondly, the structure of the support body gasket is limited so as to realize the assembly of the support body gasket between the wheel rim and the support body and the inflation of the outer tire, wherein, as shown in fig. 2, a concave groove for assembling the inner circular plate of the support body on the support body gasket is arranged on the circular surface of the support body gasket facing the support body, so that the assembly between the support body gasket and the support body is realized; as shown in fig. 2-4, the support gasket is located between the tire beads on both sides of the cover tire, the rim contacts with another round surface of the support gasket, and a circumferential inflation groove for corresponding to the inflation valve hole on the rim is arranged on the round surface of the support gasket facing the rim, and at least one inflation through hole which is butted with the inflation groove on the support body is arranged on the support gasket along the circumferential direction of the support gasket, and the inflation through hole is communicated with the circumferential inflation groove through a transverse groove, thereby sequentially passing through the inflation valve hole, the circumferential inflation groove, the transverse groove, the inflation through hole and the inflation groove to realize the inflation process.

Again, as shown in FIG. 1, the width of the concave groove, the circumferential inflation groove, and the circular surface facing the rim are defined, wherein the width W of the inner circular plate of the support body₂Width W of the groove₁Have the following relationship between: w is not less than 1mm₂-W₁Less than or equal to 3mm, so as to ensure the interference fit between the gasket of the support body and the support body; wherein, as shown in fig. 3 and 4, the width W of the circumferential inflation groove is 25mm to 35mm, if the width is less than 25mm, the inflation efficiency of the tire is reduced, and if the width is more than 35mm, the strength of the support gasket is reduced, which causes bending deformation of the portion during the assembly process; further, the width W of the circular surface facing the rim of the support body gasket₃A bonding width W of the rim₄And a bead width W of the outer tire₅The method is carried out by the following steps: w is not less than 1₃-(W₄-2*W₅) The thickness of the support body is less than or equal to 4mm, and multiple times of experiments prove that if the thickness of the support body is lower than the lower limit value, the support body gasket cannot ensure that the support body is completely fixed, so that the support body can shake left and right in the using process, and if the thickness of the support body is higher than the upper limit value, the rim trim strip is difficult to assemble or cannot be assembled; finally, as shown in FIG. 3, forThe part, attached to the outer tire, of the two side faces of the support body gasket is limited, in order to ensure that the support body gasket is not slipped after being matched with the outer tire, the parts, attached to the outer tire, of the two side faces of the support body gasket are inclined faces on the cross section, and the angle a between the inclined faces and the horizontal line on the cross section is more than or equal to 91 degrees and less than or equal to 95 degrees.

The height value of the concave groove and the height value of the inclined surface in the support body gasket are determined according to the rim bonding diameter and the bottom diameter of the support body, so that the support body gasket and the support body are prevented from vertically shaking.

In order to make the purpose, technical solution and advantages of the present invention more concise and clear, the present invention is described with the above embodiments, which are only used for describing the present invention, and can not be understood as a limitation to the scope of the present invention. It should be understood that any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A support body gasket for a tire support body, the support body gasket (1) being provided between a support body (2) of a tire and a rim (3) of the tire, the support body being provided within a casing (4) of the tire,

a concave groove (11) used for connecting the inner circular plate of the support body with the support body gasket is arranged on the circular surface of the support body gasket facing the support body;

a circumferential inflation groove (12) corresponding to a valve hole on the rim is formed in the circular surface, facing the rim, of the support body gasket;

an inflation through hole (13) which is butted with the inflation groove on the support body is formed in the support body gasket along the circumferential direction of the support body gasket, and the inflation through hole is communicated with the circumferential inflation groove through a transverse groove (14).

2. The support body gasket for a tire support body as in claim 1, wherein the width W of the inner circular plate of the support body₂Width W of the groove₁Have the following relationship between: w is not less than 1mm₂-W₁≤3mm。

3. The support cushion for a tire support according to claim 1, wherein the width W of said circumferential inflation groove is 25mm-35 mm.

4. The support body gasket for a tire support body as set forth in claim 1, wherein a width W of a circular surface of the support body gasket facing a rim₃A bonding width W of the rim₄And a bead width W of the outer tire₅Have the following relationship between: w is not less than 1₃-(W₄-2*W₅)≤4mm。

5. The support body gasket for a tire support body according to claim 1, wherein the portions of both side surfaces of said support body gasket, which are fitted to said outer tire, are inclined surfaces in cross section, and the angle a between said inclined surfaces and the horizontal line in cross section is 91 ° or more and 95 ° or less.

6. The support body gasket for a tire support body according to claim 1, wherein said support body gasket has a tensile strength of 14Mpa or more and an elongation at break of 250% or more.