Puncture-resistant low-noise tire

Abstract

The utility model provides a puncture-resistant low-noise tire, which belongs to the field of tires and comprises a fixing layer, a self-sealing rubber layer and mute cotton, and the fixing layer is arranged on the outer surface of an airtight layer; the self-sealing glue layer is arranged on the outer surface of the fixing layer; the mute cotton is arranged on the outer surface of the self-sealing glue layer; wherein the width of the fixing layer, the width of the self-sealing glue layer and the width of the mute cotton are sequentially decreased. The utility model has the characteristics that the mobility of the self-sealing glue can be effectively controlled, and the self-sealing glue has good puncture resistance.

Description

Technical Field

[0001] The utility model belongs to the field of tires, and in particular relates to a puncture-resistant and low-noise tire. Background Art

[0002] More and more electric vehicles have come into being, and due to their own characteristics, electric vehicles usually adopt a design without a spare tire; when the vehicle is driving, if the tire is punctured, the vehicle will stop due to lack of air in the tire, making the vehicle's driving sustainability poor.

[0003] At present, in order to solve the above shortcomings of electric vehicle tires, a layer of self-sealing glue is usually applied on the outer surface of the airtight layer at the crown of the tire. When the tire is punctured, the self-sealing glue will flow to the punctured position to block the puncture hole, prevent the tire from being deflated, and ensure the sustainability of vehicle driving. However, during the use of the self-sealing glue of some tires, the glue will flow and accumulate, which may cause the thickness of the self-sealing glue in some parts of the tire to become thinner, affecting the puncture resistance of the tire. Utility Model Content

[0004] Details of one or more embodiments of the present invention are set forth in the following drawings and description to make other features, objects, and advantages of the present application more readily apparent.

[0005] The utility model provides a puncture-resistant low-noise tire, which solves the technical problems that the existing puncture-resistant low-noise tires cannot effectively control the fluidity of the self-sealant and have poor puncture resistance performance. The utility model has the characteristics of being able to effectively control the fluidity of the self-sealant and having good puncture resistance performance.

[0006] The utility model discloses a puncture-resistant low-noise tire, comprising a fixing layer, a self-sealing adhesive layer and sound-proof cotton, wherein the fixing layer is arranged on the outer surface of the airtight layer; the self-sealing adhesive layer is arranged on the outer surface of the fixing layer; the sound-proof cotton is arranged on the outer surface of the self-sealing adhesive layer; wherein the width of the fixing layer, the width of the self-sealing adhesive layer and the width of the sound-proof cotton decrease in sequence.

[0007] In some embodiments, the axial distances between the two ends of the fixing layer and the adjacent shoulder end points are both L, wherein L≤15 mm.

[0008] In some embodiments, the fixing layer is composed of a plurality of fixing members, each of which is in the form of a cone, and a circular bottom of each fixing member is engaged with the airtight layer. The plurality of fixing members are evenly distributed along the circumference and axial direction of the tire.

[0009] In some embodiments, the height of the fixing member is 0.5 mm to 30 mm, and the diameter of the bottom circle of the fixing member is 2 mm to 30 mm.

[0010] In some embodiments, the fixing member includes a first fixing member, a second fixing member and a third fixing member, and the height of the first fixing member, the height of the second fixing member and the height of the third fixing member increase sequentially.

[0011] In some embodiments, the fixing layer includes a first fixing layer and a second fixing layer, the first fixing layer includes the first fixing member, the second fixing member, the third fixing member, the third fixing member, the second fixing member and the first fixing member arranged in sequence from left to right along the axial direction of the tire; the second fixing layer includes the first fixing member, the third fixing member, the second fixing member, the third fixing member and the first fixing member arranged in sequence from left to right along the axial direction of the tire.

[0012] In some embodiments, the first fixing layer and the second fixing layer are alternately arranged along the circumference of the tire.

[0013] In some embodiments, along the axial direction of the tire, the distance between two adjacent fixing members is 5 mm to 30 mm, and along the circumferential direction of the tire, the distance between adjacent first fixing layers and second fixing layers is 5 mm to 500 mm.

[0014] In some embodiments, the airtight layer includes a first airtight layer and two second airtight layers, the first airtight layer is arranged in the middle of the tire, and a fixing layer is arranged on the outer surface of the first airtight layer; the two second airtight layers are symmetrically arranged on the left and right sides of the first airtight layer; the thickness of the first airtight layer is greater than the thickness of the second airtight layer.

[0015] In some of the embodiments, the fixing layer and the airtight layer are integrally formed.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model discloses a puncture-resistant low-noise tire. By arranging a fixing layer on the outer surface of an airtight layer and arranging a self-sealing adhesive layer on the outer surface of the fixing layer, the fluidity of the self-sealing adhesive in the self-sealing adhesive layer can be effectively controlled by the fixing layer to avoid the phenomenon of rubber flowing and accumulation, and arranging a silent cotton on the outer surface of the self-sealing adhesive layer can play a role in reducing noise.

[0018] 2. The utility model discloses a puncture-resistant low-noise tire, in which the fixing piece is designed to be cone-shaped. This shape can make the tire easy to exhaust during vulcanization, and is not prone to the phenomenon of lack of glue. The overall smoothness of the fixing layer after vulcanization is better, which better guarantees the appearance quality of the tire.

[0019] 3. The utility model discloses a puncture-resistant low-noise tire. By reasonably designing the height of the fixing piece and the diameter of the bottom circle of the fixing piece, the incidence of the fixing piece breaking during use can be effectively reduced.

[0020] 4. The utility model divides the fixing parts into a first fixing part, a second fixing part and a third fixing part, wherein the fixing layer includes a first fixing layer and a second fixing layer, and the first fixing layer and the second fixing layer are both arranged according to a certain rule using three kinds of fixing parts, and the height of the first fixing part, the height of the second fixing part and the height of the third fixing part are increased in sequence. Since the center of the crown of the tire is subjected to the greatest force when the tire is running, a plurality of second fixing parts and third fixing parts are arranged in the center of the crown of the tire, and the first fixing layer and the second fixing layer are arranged alternately along the circumference of the tire, which can further reduce the fluidity of the self-sealing adhesive.

[0021] 5. The utility model designs the spacing between two adjacent fixing members along the axial direction of the tire to be 5mm to 30mm, and the spacing between the adjacent first fixing layer and the second fixing layer along the circumferential direction of the tire to be 5mm to 500mm. Since the crown part of the tire deforms greatly when the tire is running, this spacing design can effectively avoid the phenomenon of collision or breakage between two adjacent fixing members during the running of the tire due to excessive size of the fixing members or too small spacing.

[0022] 6. The utility model designs the thickness of the first airtight layer to be greater than that of the second airtight layer, so that there is enough rubber at the first airtight layer where the fixed layer is provided during the vulcanization of the tire, ensuring that the shape of the fixed layer after vulcanization is full and avoiding the occurrence of rubber shortage and the like.

[0023] 7. The utility model forms the fixing layer and the airtight layer in one piece, which greatly simplifies the process flow and thus improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0025] Figure 1 A schematic diagram of the outline of a puncture-resistant and low-noise tire provided in an embodiment of the utility model;

[0026] Figure 2 A schematic diagram of the arrangement structure of the first fixed layer provided in an embodiment of the utility model;

[0027] Figure 3 A schematic diagram of the arrangement structure of the second fixed layer provided in an embodiment of the utility model;

[0028] Figure 4 A schematic diagram of a structure in which a first fixing layer and a second fixing layer are alternately arranged in the circumferential direction of a tire provided by an embodiment of the utility model;

[0029] In the above figures: airtight layer 1; first airtight layer 11; second airtight layer 12; fixing layer 2; first fixing layer 21; second fixing layer 22; first fixing member 201; second fixing member 202; third fixing member 203; self-sealing adhesive layer 3; sound-proofing cotton 4. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is described and illustrated in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. Based on the embodiments provided by the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0031] The utility model embodiment provides a puncture-resistant low-noise tire. Figure 1 to Figure 4 As shown, the puncture-resistant low-noise tire includes a fixing layer 2, a self-sealing rubber layer 3 and a silent cotton 4. The fixing layer 2 is arranged on the outer surface of the airtight layer 1; the self-sealing rubber layer 3 is arranged on the outer surface of the fixing layer 2; the silent cotton 4 is arranged on the outer surface of the self-sealing rubber layer 3; wherein the width of the fixing layer 2, the width of the self-sealing rubber layer 3 and the width of the silent cotton 4 decrease in sequence. The utility model arranges the fixing layer 2 on the outer surface of the airtight layer 1 and the self-sealing rubber layer 3 on the outer surface of the fixing layer 2, and the fluidity of the self-sealing rubber in the self-sealing rubber layer 3 can be effectively controlled by the fixing layer 2 to avoid the phenomenon of rubber material flowing, accumulation and the like, and arranges the silent cotton 4 on the outer surface of the self-sealing rubber layer 3 to play a role in reducing noise.

[0032] Furthermore, the axial distances between the two ends of the fixing layer 2 and the adjacent shoulder end points are both L, where L≤15mm. The utility model designs the axial distances L between the two ends of the fixing layer 2 and the adjacent shoulder end points to be no more than 15mm, mainly to avoid the fixing layer 2 from overlapping with the shoulder, thereby reducing the overall thickness of the shoulder, facilitating heat dissipation at the shoulder, and thus improving the durability and service life of the tire.

[0033] Furthermore, the fixing layer 2 is composed of a plurality of fixing parts, the fixing parts are in a cone shape, the bottom circle of the fixing parts is connected to the airtight layer 1, and the plurality of fixing parts are evenly distributed along the circumference and axial direction of the tire. The utility model designs the fixing parts in a cone shape, which can make it easy to exhaust the tire during vulcanization, and it is not easy to have the phenomenon of lack of glue, and the fixing layer after vulcanization has better overall smoothness, which better guarantees the appearance quality of the tire.

[0034] Furthermore, the height of the fixing piece is 0.5 mm to 30 mm, and the diameter of the bottom circle of the fixing piece is 2 mm to 30 mm. By reasonably designing the height of the fixing piece and the diameter of the bottom circle of the fixing piece, the incidence of the fixing piece breaking during use can be effectively reduced.

[0035] Further, the fixing member includes a first fixing member 201, a second fixing member 202 and a third fixing member 203, and the height of the first fixing member 201, the height of the second fixing member 202 and the height of the third fixing member 203 are increased in sequence.

[0036] Furthermore, the fixing layer 2 includes a first fixing layer 21 and a second fixing layer 22, the first fixing layer 21 includes a first fixing member 201, a second fixing member 202, a third fixing member 203, a third fixing member 203, a second fixing member 202 and a first fixing member 201 arranged in sequence from left to right along the axial direction of the tire; the second fixing layer 22 includes a first fixing member 201, a third fixing member 203, a second fixing member 202, a third fixing member 203 and a first fixing member 201 arranged in sequence from left to right along the axial direction of the tire.

[0037] Furthermore, the first fixing layer 21 and the second fixing layer 22 are arranged alternately along the circumference of the tire. The utility model divides the fixing parts into the first fixing part 201, the second fixing part 202 and the third fixing part 203, wherein the fixing layer 2 includes the first fixing layer 21 and the second fixing layer 22, and the first fixing layer 21 and the second fixing layer 22 are arranged according to a certain rule using three kinds of fixing parts, and the height of the first fixing part 201, the height of the second fixing part 202 and the height of the third fixing part 203 are successively increased. Since the center of the tire crown is subjected to the greatest force when the tire is running, a plurality of second fixing parts 202 and the third fixing part 203 are arranged at the center of the tire crown, and the first fixing layer 21 and the second fixing layer 22 are arranged alternately along the circumference of the tire, which can further reduce the fluidity of the self-sealing adhesive.

[0038] Furthermore, along the axial direction of the tire, the spacing between two adjacent fixing members is 5 mm to 30 mm, and along the circumferential direction of the tire, the spacing between adjacent first fixing layers 21 and second fixing layers 22 is 5 mm to 500 mm. Since the crown of the tire is greatly deformed when the tire is running, the utility model adopts such a spacing design to effectively avoid the phenomenon that two adjacent fixing members collide with each other or break during the running of the tire due to the fixing member being too large or the spacing being too small.

[0039] In some embodiments, along the axial direction of the tire, the distance between two adjacent fixing members may be the same or different, and along the circumferential direction of the tire, the distance between adjacent first fixing layers 21 and second fixing layers 22 may be the same or different.

[0040] Furthermore, the airtight layer 1 includes a first airtight layer 11 and two second airtight layers 12, wherein the first airtight layer 11 is arranged in the middle of the tire, and a fixing layer 2 is arranged on the outer surface of the first airtight layer 11; the two second airtight layers 12 are symmetrically arranged on the left and right sides of the first airtight layer 11; the thickness of the first airtight layer 11 is greater than the thickness of the second airtight layer 12. The thickness of the first airtight layer 11 is designed to be greater than the thickness of the second airtight layer 12, so that there is enough rubber at the first airtight layer 11 where the fixing layer 2 is arranged during the vulcanization of the tire, so as to ensure that the shape of the fixing layer 2 after vulcanization is full and avoid the phenomenon of lack of rubber and the like.

[0041] Furthermore, the fixing layer 2 and the airtight layer 1 are integrally formed, which greatly simplifies the process flow and thus improves production efficiency.

[0042] In some embodiments, the fixing layer 2 and the airtight layer 1 are integrally formed together through a vulcanization process, which simplifies the production process and greatly improves production efficiency.

[0043] In some embodiments, the material of the fixing layer 2 is the same as that of the airtight layer 1. Using the same material for the fixing layer 2 and the airtight layer 1 can further improve the bonding performance of the fixing layer 2 and the airtight layer 1 at the connection part, and avoid the connection part from breaking during use due to the different materials of the fixing layer 2 and the airtight layer 1.

[0044] 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.

[0045] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A puncture-resistant low-noise tire, characterized in that: include: A fixing layer, the fixing layer being arranged on the outer surface of the airtight layer; A self-sealing adhesive layer, the self-sealing adhesive layer being arranged on the outer surface of the fixing layer; Sound-proof cotton, which is arranged on the outer surface of the self-sealing adhesive layer; Among them, the width of the fixing layer, the width of the self-sealing adhesive layer and the width of the sound-proof cotton decrease in sequence.

2. The puncture-resistant low-noise tire according to claim 1, characterized in that: The axial distances between the two ends of the fixing layer and the end points of the adjacent tire shoulders are both L, wherein L≤15 mm.

3. The puncture-resistant low-noise tire according to claim 1, characterized in that: The fixing layer is composed of a plurality of fixing members, each of which is in the form of a cone, the bottom of which is circular and connected to the airtight layer, and the plurality of fixing members are evenly distributed along the circumference and axial direction of the tire.

4. The puncture-resistant low-noise tire according to claim 3, characterized in that: The height of the fixing piece is 0.5 mm to 30 mm, and the diameter of the bottom circle of the fixing piece is 2 mm to 30 mm.

5. The puncture-resistant low-noise tire according to claim 3, characterized in that: The fixing member includes a first fixing member, a second fixing member and a third fixing member, and the height of the first fixing member, the height of the second fixing member and the height of the third fixing member increase in sequence.

6. The puncture-resistant low-noise tire according to claim 5, characterized in that: The fixed layer comprises: a first fixing layer, the first fixing layer comprising the first fixing member, the second fixing member, the third fixing member, the third fixing member, the second fixing member and the first fixing member arranged in sequence from left to right along the axial direction of the tire; The second fixing layer includes the first fixing member, the third fixing member, the second fixing member, the third fixing member and the first fixing member which are sequentially arranged from left to right along the axial direction of the tire.

7. The puncture-resistant low-noise tire according to claim 6, characterized in that: The first fixing layers and the second fixing layers are alternately arranged along the circumferential direction of the tire.

8. The puncture-resistant low-noise tire according to claim 6 or 7, characterized in that: Along the axial direction of the tire, the distance between two adjacent fixing members is 5 mm to 30 mm, and along the circumferential direction of the tire, the distance between adjacent first fixing layers and second fixing layers is 5 mm to 500 mm.

9. The puncture-resistant low-noise tire according to claim 1, characterized in that: The airtight layer comprises: A first airtight layer, wherein the first airtight layer is arranged in the middle of the tire, and a fixing layer is arranged on the outer surface of the first airtight layer; Two second airtight layers, wherein the two second airtight layers are symmetrically arranged on the left and right sides of the first airtight layer; The thickness of the first airtight layer is greater than the thickness of the second airtight layer.

10. The puncture-resistant low-noise tire according to claim 1, characterized in that: The fixing layer and the airtight layer are integrally formed.

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