Recycled tire manufactured from waste rubber regenerated raw material

By introducing reinforcement layers and support components into the tire, the structural strength of the crown, shoulder and sidewall is enhanced, which solves the problem of insufficient structural strength of tires made from recycled waste rubber during the recycling process, and achieves high wear resistance, low noise, long life and high stability of the tire.

CN120680847APending Publication Date: 2025-09-23JIANGSU TOPOWER WHEEL
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Patent Information

Application Number
CN202510688476.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-27
Publication Date
2025-09-23

AI Technical Summary

Technical Problem

During the recycling process, it is difficult for recycled waste rubber raw materials to achieve the uniform cross-linking density of virgin rubber, which affects the structural strength of the tire, makes local excessive deformation and increased wear prone, and affects the overall performance and service life.

Method used

By introducing the first reinforcement layer, the second reinforcement layer and the support assembly into the tire body, including the cooperation of the rubber support ring, the reinforcement layer and the support assembly, the structural strength of the crown, shoulder and sidewall is enhanced. Combined with the design of the oblique tread blocks, transverse tread blocks and rubber reinforcement ribs, the overall structural strength and stability of the tire are improved.

Benefits of technology

Effectively improve the structural strength of tires, reduce the risk of deformation and damage, extend service life, enhance puncture resistance, reduce the risk of air leakage and blowout, improve wear resistance and noise reduction performance, and enhance vehicle driving comfort and grip.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a recycling tire made of waste rubber regenerated raw materials, and belongs to the technical field of tire manufacturing, the recycling tire comprises a tire main body, the tire main body comprises a tire crown part, a tire shoulder part and a tire side part, the outer surface of the tire crown part is fixedly connected with an inclined pattern block and a transverse pattern block, the inner surfaces of the tire crown part and the tire shoulder part are fixedly connected with a first reinforcing layer, the inner surfaces of the first reinforcing layer and the tire side part are fixedly connected with a second reinforcing layer, the inner surface of the second reinforcing layer is provided with supporting assemblies which are uniformly distributed in an annular array, and each supporting assembly comprises a rubber supporting ring; the outer wall of the rubber supporting ring is fixedly connected with the inner surface of the tire main body through a rubber supporting block, and the technical effects that the structural strength of the tire crown part, the tire shoulder part and the tire side part can be effectively improved, then the overall structural strength of the tire is enhanced, the tire is not prone to deformation or damage in the running process, and the service life of the tire is prolonged are achieved.
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Description

Technical Field

[0001] The invention belongs to the technical field of tire manufacturing, and in particular relates to a recycled tire manufactured from recycled waste rubber raw materials. Background Art

[0002] With the booming development of the automotive industry, the use of tires is increasing day by day, and the number of waste tires is also rising. Tires are mainly made of natural rubber, synthetic rubber and various additives. The production process consumes a large amount of natural resources. In addition, waste rubber is difficult to degrade naturally. Large accumulations not only occupy land resources, but also easily cause environmental pollution problems. Therefore, recycled tires have come into being. Recycled tires recycle and reprocess waste rubber, converting it into recycled raw materials that can be used for tire manufacturing, thereby reducing dependence on new rubber resources, lowering tire production costs, and allowing waste tires to be recycled. Recycled tires can not only effectively alleviate the environmental pollution caused by the accumulation of waste tires, but also achieve resource reuse, providing raw materials for multiple industries such as rubber product production and road construction, promoting resource recycling and economic sustainable development.

[0003] During the recycling process, the original cross-linking structure of scrap rubber is destroyed, and new cross-links are formed. However, it is difficult to achieve the uniform cross-linking density of virgin rubber. This can affect the structural strength of recycled tires, making them prone to localized excessive deformation and increased wear, affecting their overall performance and service life. Summary of the Invention

[0004] In response to the problems existing in the prior art, the present invention provides a recycled tire made from recycled waste rubber raw materials, which has the advantages of effectively improving the structural strength of the crown, shoulder and sidewall parts, thereby enhancing the overall structural strength of the tire, making the tire less likely to be deformed or damaged during driving, thereby extending the service life of the tire. It solves the problem in the prior art that the structural strength of recycled tires is affected to a certain extent, and they are prone to local excessive deformation, increased wear, etc., which affects the overall performance and service life of the tire.

[0005] The present invention is achieved as follows: a recycled tire made from recycled waste rubber raw materials, including a tire main body, the tire main body including a crown portion, a shoulder portion and a sidewall portion, the outer surface of the crown portion is fixedly connected with oblique tread blocks and transverse tread blocks, the inner surfaces of the crown portion and the shoulder portion are fixedly connected with a first reinforcement layer, the first reinforcement layer and the inner surface of the sidewall portion are fixedly connected with a second reinforcement layer, the inner surface of the second reinforcement layer is installed with support components evenly distributed in an annular array, the support component includes a rubber support ring, the outer wall of the rubber support ring is fixedly connected to the inner surface of the tire main body through a rubber support block.

[0006] Through this setting, through the cooperation of the first reinforcement layer, the second reinforcement layer and the support assembly, the structural strength of the crown, shoulder and sidewall can be effectively improved, thereby enhancing the overall structural strength of the tire, making it less likely for the tire to be deformed or damaged during driving, thereby extending the service life of the tire; enhancing puncture resistance, reducing the risk of tire leakage and blowout, and facilitating uniform pressure distribution, avoiding premature wear caused by excessive local pressure, and further improving the performance and life of the tire; and effectively buffering the impact force from the road surface, firmly connecting the tire body to the support assembly, ensuring the integrity and stability of the tire structure, thereby further improving the overall structural strength and service life of the tire.

[0007] As a preferred embodiment of the present invention, the oblique pattern blocks and the transverse pattern blocks are integrated and fixedly connected, and the oblique pattern blocks and the transverse pattern blocks are distributed in a ring array along the tire body, and main pattern grooves are provided on the oblique pattern blocks and the transverse pattern blocks, and auxiliary pattern grooves are extended from the ends of the main pattern grooves, and the auxiliary pattern grooves extend to the tire shoulder.

[0008] Through this setting, the integrated tread blocks make the tire evenly stressed and more wear-resistant, improving wear resistance and noise reduction performance. The main grooves and auxiliary grooves of the pattern can facilitate drainage and anti-skid, enhance grip under different road conditions, and the pattern layout can also disrupt airflow and vibration frequency, reducing driving noise.

[0009] As a preferred embodiment of the present invention, a rubber reinforcement rib is provided on the main groove of the pattern, and both ends of the rubber reinforcement rib are fixedly connected to the corresponding oblique pattern block and transverse pattern block respectively, and the rubber reinforcement rib is arranged in a hexagonal prism structure.

[0010] Through this setting, the rubber reinforcement ribs with hexagonal prism structure can enhance the connection stability between the pattern blocks, so that the oblique pattern blocks and the transverse pattern blocks can better coordinate the force when the vehicle is driving, reduce the deformation and tearing of the pattern blocks due to uneven force, improve the overall structural strength and durability of the tire, and extend the service life.

[0011] As preferred embodiment of the present invention, the first reinforcement layer includes a nylon belt layer, the nylon belt layer is fixedly coated with a steel belt layer, the steel belt layer is fixedly coated with a rubber buffer layer, and the rubber buffer layer is fixedly coated with an aramid belt layer.

[0012] Through this setting, the nylon belt layer and the steel belt layer enhance the strength and durability of the tire, making the tire resistant to deformation, wear-resistant, load-bearing and puncture-resistant. The rubber buffer layer can absorb vibration and improve vehicle driving comfort. The aramid material has high strength, low density, good tensile and tear resistance. The aramid belt layer can provide additional strength and stability to the tire without adding too much weight.

[0013] As a preferred embodiment of the present invention, the second reinforcement layer includes a nylon fiber cord layer, the nylon fiber cord layer is fixedly coated with a steel cord layer, the steel cord layer is fixedly coated with a rubber airtight layer, and a rubber pad is bonded and fixed in the gap between the second reinforcement layer, the first reinforcement layer and the shoulder portion.

[0014] Through this setting, the nylon fiber cord layer enhances toughness, the steel cord layer improves strength and puncture resistance, and the rubber airtight layer ensures airtightness; the rubber pads fill the gaps, allowing the various parts to be tightly connected and buffer stress; the second reinforcement layer works together with the first reinforcement layer to strengthen the tire structure and improve overall performance.

[0015] As a preferred embodiment of the present invention, an anti-scratch steel wire layer is fixedly connected between the inner wall of the tire side portion and the nylon fiber cord layer, and the anti-scratch steel wire layer is composed of a plurality of steel wire rings that are closely arranged.

[0016] Through this setting, the anti-scratch steel wire layer composed of tightly arranged steel wire rings can effectively resist scratches from foreign objects on the road, protect the internal structure of the tire, reduce the chance of sidewall damage, reduce the risk of tire scrapping due to sidewall damage, improve the wear resistance of the sidewall, and extend the overall service life of the tire.

[0017] As a preferred embodiment of the present invention, a rubber reinforcement block is fixedly connected to the outer wall of the tire side portion, the rubber reinforcement block is arranged in a tooth-like structure, and the rubber reinforcement blocks are evenly distributed along the tire side portion in an annular array.

[0018] Through this setting, the tooth-like structure of the rubber reinforcement block can enhance friction and improve grip performance. The rubber material cushions road impact and is evenly distributed to make the tire evenly stressed and more durable, further improving the structural strength of the sidewall and enhancing wear resistance.

[0019] As a preferred embodiment of the present invention, the rubber support block is fixedly connected to the outer wall of the rubber support ring, the end of the rubber support block passes through the first reinforcement layer and the second reinforcement layer and is fixedly connected to the inner surface of the rubber body, a spiral groove is provided on the inner wall of the rubber support ring, a spiral support ring is fixedly connected to the spiral groove, and the spiral support ring is made of a spiral steel wire material.

[0020] This setting provides elastic support for the inside of the tire, cushioning the impact force during vehicle driving, helping to avoid the risk of tire blowout and enhancing the stability of the tire structure. The spiral groove can reduce the weight of the rubber support ring and optimize its mechanical properties. The spiral support ring is made of steel wire, which improves the strength and rigidity of the rubber support ring, further enhancing the supporting effect of the support assembly, thereby further enhancing the tire's resistance to deformation and wear and extending its service life.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: through the cooperation of the first reinforcement layer, the second reinforcement layer and the support assembly, the structural strength of the crown, shoulder and sidewall can be effectively improved, thereby enhancing the overall structural strength of the tire, making it less likely for the tire to be deformed or damaged during driving, thereby extending the service life of the tire; enhancing puncture resistance, reducing the risk of tire leakage and blowout, and facilitating uniform pressure distribution, avoiding premature wear caused by excessive local pressure, and further improving the performance and service life of the tire; and effectively buffering the impact force from the road surface, firmly connecting the tire body to the support assembly, making it less likely for relative displacement or loosening to occur, thereby ensuring the integrity and stability of the tire structure, thereby further improving the overall structural strength and service life of the tire. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of a three-dimensional structure provided by an embodiment of the present invention;

[0023] Figure 2 It is a schematic diagram of a cross-sectional structure provided by an embodiment of the present invention;

[0024] Figure 3 The embodiment of the present invention provides Figure 2 The middle part is an enlarged structural diagram;

[0025] Figure 4 is a schematic structural diagram of a support assembly provided by an embodiment of the present invention;

[0026] Figure 5 Schematic diagram of the structure of the anti-scratch steel wire layer provided by an embodiment of the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the rubber support ring provided by an embodiment of the present invention.

[0028] In the figure: 1. Tire body; 101. Crown; 102. Shoulder; 103. Sidewall; 2. Oblique tread blocks; 201. Transverse tread blocks; 202. Main tread grooves; 203. Auxiliary tread grooves; 204. Rubber reinforcement ribs; 3. Rubber reinforcement blocks; 4. First reinforcement layer; 401. Nylon belt layer; 402. Steel belt layer; 403. Rubber buffer layer; 404. Aramid belt layer; 5. Second reinforcement layer; 501. Nylon fiber cord layer; 502. Steel cord layer; 503. Rubber airtight layer; 504. Anti-scratch steel wire layer; 6. Rubber support ring; 601. Rubber support block; 602. Spiral groove; 603. Spiral support ring. DETAILED DESCRIPTION

[0029] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0030] The structure of the present invention is described in detail below with reference to the accompanying drawings.

[0031] refer to Figures 1 to 6 As shown, an embodiment of the present invention provides a recycled tire made of recycled waste rubber raw materials, including a tire body 1, wherein the tire body 1 includes a crown portion 101, a shoulder portion 102 and a sidewall portion 103, the outer surface of the crown portion 101 is fixedly connected with an oblique tread block 2 and a transverse tread block 201, the inner surfaces of the crown portion 101 and the shoulder portion 102 are fixedly connected with a first reinforcement layer 4, the first reinforcement layer 4 and the inner surface of the sidewall portion 103 are fixedly connected with a second reinforcement layer 5, the inner surface of the second reinforcement layer 5 is installed with support components evenly distributed in a ring array, the support components include a rubber support ring 6, the outer wall of the rubber support ring 6 is fixedly connected to the inner surface of the tire body 1 through a rubber support block 601.

[0032] By adopting the above scheme, through the cooperation of the first reinforcement layer 4, the second reinforcement layer 5 and the support assembly, the structural strength of the crown portion 101, the shoulder portion 102 and the sidewall portion 103 can be effectively improved, thereby enhancing the overall structural strength of the tire, making it less likely for the tire to be deformed or damaged during driving, thereby extending the service life of the tire; enhancing puncture resistance, reducing the risk of tire leakage and blowout, and facilitating uniform pressure distribution, avoiding premature wear caused by excessive local pressure, and further improving the performance and life of the tire; and effectively buffering the impact force from the road surface, firmly connecting the tire body 1 to the support assembly, ensuring the integrity and stability of the tire structure, thereby further improving the overall structural strength and service life of the tire.

[0033] Specifically, the oblique pattern blocks 2 and the transverse pattern blocks 201 are integrally fixedly connected, and the oblique pattern blocks 2 and the transverse pattern blocks 201 are distributed in a circular array along the tire body 1. The oblique pattern blocks 2 and the transverse pattern blocks 201 are provided with main pattern grooves 202, and the ends of the main pattern grooves 202 are extended with auxiliary pattern grooves 203, and the auxiliary pattern grooves 203 extend to the shoulder portion 102.

[0034] By adopting the above solution, the integrated pattern blocks make the tire more wear-resistant and evenly stressed, and improve the wear resistance and noise reduction performance. The main pattern grooves 202 and the auxiliary pattern grooves 203 can facilitate drainage and anti-skid, and enhance the grip under different road conditions. The pattern layout can also disrupt the airflow and vibration frequency, reducing driving noise.

[0035] Specifically, a rubber reinforcement rib 204 is provided on the main groove 202 of the tread. Two ends of the rubber reinforcement rib 204 are fixedly connected to the corresponding oblique tread block 2 and transverse tread block 201 respectively. The rubber reinforcement rib 204 is arranged in a hexagonal prism structure.

[0036] By adopting the above scheme, the rubber reinforcement ribs 204 with a hexagonal prism structure can enhance the connection stability between the pattern blocks, so that the oblique pattern blocks 2 and the transverse pattern blocks 201 can better coordinate the force when the vehicle is driving, reduce the deformation and tearing of the pattern blocks due to uneven force, improve the overall structural strength and durability of the tire, and extend the service life.

[0037] Specifically, the first reinforcement layer 4 includes a nylon belt layer 401 , a steel belt layer 402 fixedly coated on the nylon belt layer 401 , a rubber buffer layer 403 fixedly coated on the steel belt layer 402 , and an aramid belt layer 404 fixedly coated on the rubber buffer layer 403 .

[0038] By adopting the above scheme, the nylon belt layer 401 and the steel belt layer 402 enhance the strength and durability of the tire, making the tire resistant to deformation, wear-resistant, load-bearing and puncture-resistant. The rubber buffer layer 403 can absorb vibration and improve vehicle driving comfort. The aramid material has high strength, low density, good tensile and tear resistance, and the aramid belt layer 404 can provide additional strength and stability to the tire without adding too much weight.

[0039] Specifically, the second reinforcement layer 5 includes a nylon fiber cord layer 501, a steel cord layer 502 is fixedly coated on the nylon fiber cord layer 501, and a rubber airtight layer 503 is fixedly coated on the steel cord layer 502. A rubber pad is bonded and fixed in the gap between the second reinforcement layer 5, the first reinforcement layer 4 and the shoulder portion 102.

[0040] With the above solution, the nylon fiber cord layer 501 enhances toughness, the steel cord layer 502 improves strength and puncture resistance, and the rubber airtight layer 503 ensures airtightness; the rubber pads fill the gaps, allowing the various parts to be tightly connected and buffering stress; the second reinforcement layer 5 works together with the first reinforcement layer 4 to strengthen the tire structure and improve overall performance.

[0041] Specifically, an anti-scratch steel wire layer 504 is fixedly connected between the inner wall of the sidewall portion 103 and the nylon fiber cord layer 501 . The anti-scratch steel wire layer 504 is composed of a plurality of steel wire rings that are closely arranged.

[0042] By adopting the above solution, the anti-scratch steel wire layer 504 composed of tightly arranged steel wire rings can effectively resist scratches from foreign objects on the road, protect the internal structure of the tire, reduce the chance of sidewall damage, reduce the risk of tire scrapping due to sidewall damage, improve the wear resistance of the sidewall, and extend the overall service life of the tire.

[0043] Specifically, the outer wall of the tire side portion 103 is fixedly connected with a rubber reinforcement block 3 . The rubber reinforcement block 3 is arranged in a tooth-like structure and is evenly distributed along the tire side portion 103 in an annular array.

[0044] With the above solution, the tooth-like structure of the rubber reinforcement block 3 can enhance friction and improve grip performance. The rubber material buffers road impact and is evenly distributed to make the tire evenly stressed and more durable, further improving the structural strength of the sidewall and enhancing wear resistance.

[0045] Specifically, the rubber support block 601 is fixedly connected to the outer wall of the rubber support ring 6, and the end of the rubber support block 601 passes through the first reinforcement layer 4 and the second reinforcement layer 5 and is fixedly connected to the inner surface of the rubber body. A spiral groove 602 is provided on the inner wall of the rubber support ring 6, and a spiral support ring 603 is fixedly connected to the spiral groove 602. The spiral support ring 603 is made of a spiral steel wire material.

[0046] The above solution provides elastic support for the inside of the tire, cushions the impact force during vehicle driving, helps avoid the risk of tire blowout, and enhances the stability of the tire structure. The spiral groove 602 can reduce the weight of the rubber support ring 6 and optimize its mechanical properties. The spiral support ring 603 is made of steel wire, which improves the strength and rigidity of the rubber support ring 6, further enhancing the supporting effect of the support assembly, thereby further enhancing the tire's resistance to deformation and wear and extending its service life.

[0047] Working principle of the present invention:

[0048] During use, the structural strength of the crown portion 101 is effectively enhanced by the rubber reinforcement ribs 204, the nylon belt layer 401, the steel belt layer 402, the rubber buffer layer 403 and the aramid belt layer 404. The structural strength of the shoulder portion 102 and the sidewall portion 103 is effectively enhanced by the nylon fiber cord layer 501, the steel cord layer 502, the rubber airtight layer 503, the anti-scratch steel wire layer 504 and the rubber reinforcement block 3. The structural strength of the crown portion 101 is further enhanced, so that the overall pressure resistance, wear resistance and deformation resistance of the tire are improved. In addition, the rubber support ring 6, the rubber support block 601, the spiral groove 602 and the spiral support ring 603 provide elastic support for the interior of the tire, buffering the impact force during vehicle driving, which is conducive to avoiding the risk of tire blowout, enhancing the stability of the tire structure, and improving the strength and rigidity of the overall tire structure, thereby further enhancing the tire's resistance to deformation and wear, improving its overall performance and extending its service life.

[0049] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0050] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A recycled tire made from recycled waste rubber, comprising a tire body (1), characterized in that: The tire body (1) comprises a crown portion (101), a shoulder portion (102) and a sidewall portion (103); the outer surface of the crown portion (101) is fixedly connected with an oblique tread block (2) and a transverse tread block (201); the inner surfaces of the crown portion (101) and the shoulder portion (102) are fixedly connected with a first reinforcement layer (4); the first reinforcement layer (4) and the inner surface of the sidewall portion (103) are fixedly connected with a second reinforcement layer (5); the inner surface of the second reinforcement layer (5) is mounted with support components uniformly distributed in an annular array; the support components comprise a rubber support ring (6); the outer wall of the rubber support ring (6) is fixedly connected to the inner surface of the tire body (1) via a rubber support block (601).

2. The recycled tire made from recycled waste rubber as claimed in claim 1, characterized in that: The oblique pattern blocks (2) and the transverse pattern blocks (201) are integrally fixedly connected, the oblique pattern blocks (2) and the transverse pattern blocks (201) are distributed in an annular array along the tire body (1), the oblique pattern blocks (2) and the transverse pattern blocks (201) are provided with pattern main grooves (202), the ends of the pattern main grooves (202) are extended with pattern auxiliary grooves (203), and the pattern auxiliary grooves (203) extend to the tire shoulder (102).

3. The recycled tire made from recycled waste rubber as claimed in claim 2, characterized in that: A rubber reinforcing rib (204) is provided on the main groove (202) of the tread. Two ends of the rubber reinforcing rib (204) are respectively fixedly connected to the corresponding oblique tread block (2) and the transverse tread block (201). The rubber reinforcing rib (204) is arranged in a hexagonal prism structure.

4. The recycled tire made from recycled waste rubber as claimed in claim 1, characterized in that: The first reinforcement layer (4) comprises a nylon belt layer (401), a steel belt layer (402) fixedly coated on the nylon belt layer (401), a rubber buffer layer (403) fixedly coated on the steel belt layer (402), and an aramid belt layer (404) fixedly coated on the rubber buffer layer (403).

5. The recycled tire made from recycled waste rubber as claimed in claim 1, characterized in that: The second reinforcement layer (5) comprises a nylon fiber cord layer (501), a steel cord layer (502) is fixedly coated on the nylon fiber cord layer (501), a rubber airtight layer (503) is fixedly coated on the steel cord layer (502), and a rubber pad is adhesively fixed in the gap between the second reinforcement layer (5), the first reinforcement layer (4) and the tire shoulder portion (102).

6. The recycled tire made from recycled waste rubber as claimed in claim 5, characterized in that: An anti-scratch steel wire layer (504) is fixedly connected between the inner wall of the tire side portion (103) and the nylon fiber cord layer (501), and the anti-scratch steel wire layer (504) is composed of a plurality of steel wire rings that are closely arranged.

7. The recycled tire made from recycled waste rubber as claimed in claim 1, characterized in that: A rubber reinforcement block (3) is fixedly connected to the outer wall of the tire side portion (103), and the rubber reinforcement block (3) is arranged in a tooth-like structure. The rubber reinforcement blocks (3) are evenly distributed along the tire side portion (103) in an annular array.

8. The recycled tire made from recycled waste rubber as claimed in claim 1, characterized in that: The rubber support block (601) is fixedly connected to the outer wall of the rubber support ring (6); the end of the rubber support block (601) passes through the first reinforcement layer (4) and the second reinforcement layer (5) and is fixedly connected to the inner surface of the rubber body; a spiral groove (602) is provided on the inner wall of the rubber support ring (6); a spiral support ring (603) is fixedly connected to the spiral groove (602); and the spiral support ring (603) is made of a spiral steel wire material.