Structure for improving mute performance of tire

Abstract

The utility model discloses a structure for improving the mute performance of a tire, which belongs to the technical field of mute of tires and comprises a main tire body, a glue strip is fixedly mounted on the inner wall of the main tire body, an inner puncture-proof layer is fixedly mounted on the inner side of the glue strip, an airtight layer is arranged on the inner side of the inner puncture-proof layer, and an outer puncture-proof layer is arranged on the inner side of the airtight layer. The inner side of the airtight layer is provided with a cushion rubber strip, the inner side of the cushion rubber strip is provided with a plurality of irregular tooth-shaped grooves, the cushion rubber strip is designed to be a sawtooth-shaped groove, the grooves are irregularly arranged, the main tire body is gradually dispersed and attenuated through the tooth-shaped grooves when the main tire body is grounded and deforms, and noise vibration occurs, so that internal air flow is hindered; and the noise of the cavity is further reduced, so that the manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tire sound insulation structures, and more specifically, to a structure for improving the sound insulation performance of tires. Background Technique

[0002] As consumers' requirements for automobile performance are getting higher and higher, consumers are paying more and more attention to the cavity noise of tires. When an automobile is driving, if the cavity noise of the tire is too loud, the sound pressure will oppress the eardrums of the driver and passengers, causing discomfort. Generally, a tire includes a tread portion, a sidewall portion, and a bead portion; among them, the tread portion is composed of a tread layer, a crown ply, a belt layer, a carcass layer, and an airtight layer. Currently, the common method is to reduce the cavity noise of the tire by adhering a sound-absorbing material under the inner liner of the finished tire to increase the air vibration damping in the tire cavity.

[0003] Existing silent tires need to fit a layer of polyurethane foam inside the airtight layer to reduce cavity noise, but the cost is relatively high. Summary of the Utility Model

[0004] To make up for the above deficiencies, the utility model provides a structure for improving the sound insulation performance of tires, aiming to improve the problem of relatively high cost of polyurethane foam.

[0005] The utility model is implemented as follows: A structure for improving the sound insulation performance of tires includes a main tire body, a glue strip is fixedly installed on the inner wall of the main tire body, an inner puncture-proof layer is fixedly installed inside the glue strip, an airtight layer is arranged inside the inner puncture-proof layer, a cushion rubber strip is installed inside the airtight layer, and a plurality of irregular tooth-shaped grooves are arranged inside the cushion rubber strip.

[0006] In the preferred technical solution of the utility model, the depth of the groove is 40 - 60% of the total thickness of the cushion rubber strip.

[0007] In the preferred technical solution of the utility model, the glue strip is a self-sealing layer, a silica gel layer or an adhesive layer.

[0008] In the preferred technical solution of the utility model, there is a film layer between the cushion rubber strip and the inner puncture-proof layer, and the film layer is made of thermoplastic polyurethane elastomer rubber, a back sticker tape or a double-sided adhesive layer material.

[0009] In the preferred technical solution of the utility model, the inner puncture-proof layer is a puncture-proof film, the puncture-proof film is U-shaped and is adhered to the inner side of the main tire body through the glue strip.

[0010] In a preferred technical solution of the present utility model, heat conducting sheets are installed on both sides of the inner wall of the cushion rubber strip. One side of the heat conducting sheet is fixedly installed with a heat conducting rod, and one end of the heat conducting rod penetrates through the main tire body and is fixedly installed with a heat dissipating fin. The heat dissipating fin is fixedly installed on the outer wall of the main tire body. Both the heat conducting sheet and the heat dissipating fin are made of all-soft aluminum strips.

[0011] In a preferred technical solution of the present utility model, both the heat dissipating fin and the heat conducting sheet are designed in an annular structure, and a plurality of heat dissipation holes are provided on the heat dissipating fin.

[0012] The beneficial effects of the present utility model are as follows: A structure for improving the sound insulation performance of a tire obtained through the above design. The cushion rubber strip is designed with serrated grooves, and the groove design is irregularly arranged. When the main tire body comes into contact with the ground and deforms, during noise vibration, it is gradually dispersed and attenuated through the toothed grooves, hindering the internal air flow, further reducing the cavity noise, thereby reducing the manufacturing cost. When the main tire body is running, the heat generated inside will be transferred to the heat dissipating fin through the heat conducting sheet and dissipated through the heat dissipating fin, so that the heat inside the main tire body can be dissipated in time, thus preventing the main tire body from being prone to blowouts. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0014] Figure 1 is a schematic diagram of a structure for improving the sound insulation performance of a tire provided by an embodiment of the present utility model;

[0015] Figure 2 is a schematic diagram of the internal structure of the main tire body provided by an embodiment of the present utility model;

[0016] Figure 3 is a schematic diagram of the structure of the inner puncture-proof layer provided by an embodiment of the present utility model;

[0017] Figure 4 is a partial structural cross-sectional view of the main tire body provided by an embodiment of the present utility model.

[0018] In the figure: 110 - main tire body; 120 - glue strip; 130 - inner puncture-proof layer; 140 - cushion rubber strip; 150 - heat conducting sheet; 151 - heat conducting rod; 152 - heat dissipating fin. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0020] Please refer to Figures 1 - 3 , the present utility model provides a technical solution: a structure for improving the sound insulation performance of a tire, including a main tire body 110, a glue strip 120 is fixedly installed on the inner wall of the main tire body 110, the glue strip 120 is a self-sealing layer, a silica gel layer or an adhesive layer, an inner puncture-proof layer 130 is fixedly installed inside the glue strip 120, an airtight layer is provided inside the inner puncture-proof layer 130, a pad rubber strip 140 is installed inside the airtight layer, and a plurality of irregular tooth-shaped grooves are provided inside the pad rubber strip 140, and the depth of the grooves is 40-60% of the total thickness of the pad rubber strip 140.

[0021] In some specific embodiments, there is a thin film layer between the pad rubber strip 140 and the inner puncture-proof layer 130. The thin film layer is made of thermoplastic polyurethane elastomer rubber, a back adhesive tape or a double-sided adhesive layer material. This thin film layer avoids the trouble caused by the inability to automate production with back adhesive glue or a sticky thin film layer, which can only be manually bonded.

[0022] In some specific embodiments, the inner puncture-proof layer 130 is a puncture-proof film. The puncture-proof film is U-shaped and is attached to the inner side of the main tire body 110 through the glue strip 120 to prevent sharp objects from piercing in. The puncture-proof film can protrude outward with the sharp object, expanding the length of the sharp objects that can be guarded against, wrapping the sharp object to avoid air leakage, and the tire can still continue to run, thereby improving safety.

[0023] Please refer to Figure 4 , heat conduction sheets 150 are installed on both sides of the inner wall of the pad rubber strip 140. One side of the heat conduction sheet 150 is fixedly installed with a heat conduction rod 151. One end of the heat conduction rod 151 penetrates through the main tire body 110 and is fixedly installed with a heat dissipation fin 152. The heat dissipation fin 152 is fixedly installed on the outer wall of the main tire body 110. The heat conduction sheet 150 and the heat dissipation fin 152 are both made of all-soft aluminum tape.

[0024] In some specific embodiments, both the heat dissipation fin 152 and the heat conduction sheet 150 are designed in a circular structure. A plurality of heat dissipation holes are provided on the heat dissipation fin 152. When the main tire body 110 is running, the heat generated inside will be transferred to the heat dissipation fin 152 through the heat conduction sheet 150 and dissipated through the heat dissipation fin 152, so that the heat inside the main tire body 110 can be dissipated in time, thereby preventing the main tire body 110 from being prone to blowouts and improving safety.

[0025] Structural principle: The cushion rubber strip 140 is designed with serrated grooves, and the groove design is arranged irregularly. When the main tire body 110 contacts the ground and deforms, during noise and vibration, it is gradually dispersed and attenuated through the toothed grooves, which hinders the internal air flow and further reduces the cavity noise. The heat generated inside the main tire body 110 during driving will be transferred to the heat sink 152 through the heat conducting sheet 150, and dissipated through the heat sink 152, so that the heat inside the main tire body 110 can be dissipated in time, thereby preventing the main tire body 110 from being prone to blowout.

[0026] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A structure for improving the sound insulation performance of a tire, comprising a main tire body, characterized in that, A glue strip is fixedly installed on the inner wall of the main tire body. An inner puncture-proof layer is fixedly installed on the inner side of the glue strip. An airtight layer is arranged on the inner side of the inner puncture-proof layer. A cushion rubber strip is installed on the inner side of the airtight layer. A plurality of irregular tooth-shaped grooves are arranged on the inner side of the cushion rubber strip.

2. The structure for improving the sound insulation performance of a tire according to claim 1, characterized in that, The depth of the groove is 40-60% of the total thickness of the cushion rubber strip.

3. The structure for improving the sound insulation performance of a tire according to claim 1, wherein The glue strip is a self-sealing layer, a silica gel layer or an adhesive layer.

4. A structure for improving the sound insulation performance of a tire according to claim 1, characterized in that, There is a thin film layer between the cushion rubber strip and the inner puncture-proof layer.

5. A structure for improving the sound insulation performance of a tire according to claim 1, characterized in that, The inner puncture-proof layer is a puncture-proof film. The puncture-proof film is U-shaped and is attached to the inner side of the main tire body through the glue strip.

6. The structure for improving the sound insulation performance of a tire according to claim 1, wherein, Heat conduction sheets are installed on both sides of the inner wall of the cushion rubber strip. A heat conduction rod is fixedly installed on one side of the heat conduction sheet. One end of the heat conduction rod penetrates through the main tire body and a heat dissipation fin is fixedly installed. The heat dissipation fin is fixedly installed on the outer wall of the main tire body.

7. The structure for improving the sound insulation performance of a tire according to claim 6, characterized in that, Both the heat dissipation fin and the heat conduction sheet are designed in a ring structure. A plurality of heat dissipation holes are formed in the heat dissipation fin.

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