All-steel truck tubeless radial tire tread pattern structure and tire

Abstract

The utility model relates to an all-steel truck tubeless radial tire tread pattern structure and a tire. The pattern structure comprises two first longitudinal pattern grooves, a second longitudinal pattern groove, a third longitudinal pattern groove and a fourth longitudinal pattern groove, wherein the two first longitudinal pattern grooves are symmetrically arranged along the central point of a tire crown and are distributed along the circumferential direction of a tire tread; the second longitudinal pattern grooves are formed in the outer sides of the first longitudinal pattern grooves and are distributed in the circumferential direction of the tire tread; the lug bosses are arranged between the two first longitudinal pattern grooves and between the first longitudinal pattern grooves and the second longitudinal pattern grooves and are used for enhancing the driving force and the wear resistance of the tread. Compared with the prior art, the tire disclosed by the utility model has good guidance quality, drainage performance, road holding force, puncture resistance and sideslip resistance under high-speed driving, and the traction force and the lateral force of the tire are improved by continuously changing pattern groove angles.

Description

Technical Field

[0001] The utility model belongs to the technical field of tire design, in particular to a tread pattern structure of a full-steel load-bearing tubeless radial tire and a tire. Background Art

[0002] Tires are donut-shaped elastic rubber products used for ground contact and rolling, which are installed on various vehicles or machines. They are usually installed on metal rims, can support the vehicle body, buffer external impact, achieve contact with the road surface and ensure the driving performance of the vehicle. Tires are often used under complex and harsh conditions. They are subjected to various deformations, loads, forces, and high and low temperatures when driving, so they must have high load-bearing performance, traction performance and buffering performance. At the same time, they are also required to have high wear resistance and flex resistance, as well as low rolling resistance and heat generation. Half of the world's rubber consumption is used in tire production, which shows the ability of tires to consume rubber.

[0003] There are many different designs of tire treads. Their designs are based on the suitability for different purposes and road conditions. These aspects should also be considered when selecting tires. Tire treads play a very important role in the entire driving process. A well-designed tread can not only effectively save fuel, but also reduce the noise generated by the car during driving. At the same time, it can enhance the driving force, braking force and traction performance of the car on various harsh and slippery roads, thereby improving the safety of car driving.

[0004] There are generally several types of tire patterns:

[0005] (1) Straight groove pattern, also called ordinary pattern, is a pattern design with longitudinal grooves as the main feature.

[0006] Features: excellent operating stability, small rotation resistance, low noise, especially excellent drainage performance, not easy to slip laterally.

[0007] Applicable: vehicles used on flat roads: cars, trucks, and even airplanes.

[0008] Disadvantages: Poor drive and traction.

[0009] (2) Horizontal groove pattern: A pattern design with horizontal grooves as the main feature.

[0010] Features: The driving force, braking force and traction of the transverse groove pattern are particularly excellent, and its wear resistance is excellent.

[0011] Applicable: gravel roads and other harsh road conditions Vehicle type: mostly used in industrial and medium and short-distance vehicles such as bulldozers, excavators, loaders and other medium and heavy-duty trucks.

[0012] Disadvantages: loud noise.

[0013] (3) Vertical and horizontal groove pattern: Vertical and horizontal groove pattern is also called comprehensive pattern, which combines the design of straight groove type and horizontal groove type.

[0014] Features: It combines the advantages of both longitudinal and transverse groove patterns.

[0015] Applicable: bad road conditions.

[0016] Disadvantages: prone to abnormal wear.

[0017] (4) Block pattern: The pattern is arranged regularly in blocks.

[0018] Features: Good driving force and braking force, providing power to drive the car forward.

[0019] Applicable to: snowy, muddy and other roads.

[0020] Disadvantages: poor wear resistance and short mileage life.

[0021] The main driving routes of tubeless tires on the market are roads above paved roads. The main quality defects of tires are shoulder hollow, crown hollow and poor wear resistance. Tires have high requirements for tread patterns and should have good wear resistance and novel appearance.

[0022] For example, CN111703258A discloses a tread structure and a tire, wherein the tread structure sequentially arranges outer shoulder ribs, center ribs and inner shoulder ribs separated by longitudinal main grooves from the outside to the inside; the outer shoulder ribs are provided with a plurality of first transverse grooves arranged circumferentially and axially with unequal pitches; the inner shoulder ribs are provided with a plurality of second transverse grooves arranged circumferentially and axially with unequal pitches; the first transverse grooves penetrate the longitudinal main grooves; the second transverse grooves axially penetrate the inner shoulder ribs; the pitch of the first transverse grooves is greater than the pitch of the second transverse grooves; the groove width of the first transverse grooves is less than the groove width of the second transverse grooves; the center ribs are provided with a plurality of first sipes with unequal spacing; the first sipes are arranged axially and tilted, and at least one end penetrates the adjacent longitudinal main grooves. However, the application only has poor design guidance, poor drainage and poor grip of the transverse groove pattern. Utility Model Content

[0023] The purpose of the utility model is to provide a tread pattern structure of an all-steel load-bearing tubeless radial tire and a tire in order to overcome the defects of the above-mentioned prior art. The combination design of the longitudinal pattern and the transverse pattern in the present application enables the tire to have good guidance, drainage, grip, puncture resistance and sideslip resistance under high-speed driving, and the continuously changing groove angle improves the traction and lateral force of the tire.

[0024] The purpose of the utility model can be achieved through the following technical solutions:

[0025] The utility model provides a tread pattern structure of an all-steel load-bearing tubeless radial tire, comprising:

[0026] Two first longitudinal grooves are symmetrically arranged along the center point of the crown and distributed along the circumference of the tire tread, wherein the bottom surface of the first longitudinal groove in the form of a circular arc transition extends radially outward to the tread surface to form a groove with a gradually increasing width;

[0027] A second longitudinal groove arranged outside the first longitudinal groove and distributed along the circumferential direction of the tire tread, wherein the bottom surface of the second longitudinal groove in a circular arc transition extends radially outward to the tread surface to form a groove with a gradually increasing width;

[0028] And a protrusion is arranged between two first longitudinal grooves and between the first longitudinal groove and the second longitudinal groove for enhancing the tread driving force and wear resistance.

[0029] Furthermore, the protrusion includes:

[0030] A plurality of pattern blocks are arranged between the two first longitudinal grooves and between the first longitudinal groove and the second longitudinal groove and distributed along the circumferential direction of the tire tread;

[0031] And connecting ribs connecting two adjacent pattern blocks.

[0032] Furthermore, the raised portion further includes a first steel sheet arranged on the pattern block, the first steel sheet is located between two first longitudinal pattern grooves and an arrangement direction of the first steel sheet intersects with a circumferential direction of the tire tread.

[0033] Furthermore, the raised portion further includes a second steel sheet arranged on the pattern block, the second steel sheet is located between the first longitudinal groove and the second longitudinal groove, and an arrangement direction of the second steel sheet is parallel to the circumferential direction of the tire tread.

[0034] Furthermore, a plurality of rows of stones are arranged on the first longitudinal grooves.

[0035] Furthermore, the two walls of the first longitudinal groove are designed to be zigzag, and the two walls of the second longitudinal groove are designed to be straight and zigzag in part with a smaller degree of zigzag than the first longitudinal groove.

[0036] Furthermore, the inner wall of the second longitudinal groove in a direction away from the first longitudinal groove is arranged in a stepped manner and forms a plurality of steps.

[0037] Furthermore, the pattern structure also includes a plurality of alternately arranged first grooves and second grooves provided on the outer sides of the second longitudinal grooves, and the first grooves and the second grooves have different depths.

[0038] Furthermore, a plurality of exhaust holes are distributed on the first longitudinal groove, the second longitudinal groove, and the raised portion.

[0039] The utility model further provides a tire, comprising:

[0040] tire carcass; and

[0041] The invention discloses a tread pattern structure of an all-steel load-bearing tubeless radial tire arranged on the tread of the tire carcass and as described above.

[0042] Compared with the prior art, the utility model has the following beneficial effects:

[0043] 1. The utility model has three rows of pattern blocks on the tread, and the design is asymmetrical, so that the tread rigidity is crossed, and the left and right are similar to the "self-locking" function, which improves the straight-line driving stability of the vehicle on various road surfaces, has excellent drainage and snow discharge performance, and enhances the stability of driving on harsh ground, such as snow and water, while taking into account the driving function on normal roads. The connecting ribs ensure the rigid connection between the pattern blocks, improve the friction between the pattern blocks and the bottom surface, and increase the driving force of the tread.

[0044] 2. The arrangement of the first steel sheet and the second steel sheet in the utility model increases the friction between the tread block arranged between the two first longitudinal grooves and the ground, increases the contact area, ensures strong grip and handling performance, cooperates with the shoulder grooves, is beneficial to drainage, improves wet braking performance and improves the wear resistance of the tread, and increases the driving force of the tread.

[0045] 3. The design of the stone removal in the utility model improves the stone removal and water drainage performance of the tire.

[0046] 4. In the present invention, the two walls of the second longitudinal groove are designed to be straight and partially curved, and the degree of curvature is less than that of the first longitudinal groove. The continuously changing groove angle improves the traction and lateral force of the tire.

[0047] 5. In the utility model, the inner wall of the second longitudinal groove away from the first longitudinal groove is arranged in a stepped manner and forms a plurality of steps, and the arrangement of the steps has the effect of removing stones and reducing noise. In addition, the first grooves and the second grooves are arranged alternately to improve the heat dissipation capacity of the tire.

[0048] 6. The vent holes in the utility model facilitate exhaust during vulcanization, preventing air pockets from causing rounded corners of the pattern and lack of rubber on the sidewalls, promoting the flow of rubber, and making the vulcanization of the rubber more uniform.

[0049] 7. The utility model adopts a mixed pattern of straight grooves and folded grooves and a variable design; a rational design of the rigidity of the tire shoulder, excellent resistance to uneven wear; a deep pattern design, long wear life; and excellent tire body durability. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 Schematic diagram of the tread pattern structure in Example 1.

[0051] Figure 2 Schematic diagram of a single pitch of the tread pattern structure in Example 1.

[0052] Numbers in the figure:

[0053] 1-first longitudinal groove, 101-stone removal block, 2-second longitudinal groove, 201-step, 3-raised portion, 301-pattern block, 302-connecting rib, 303-first steel sheet, 304-second steel sheet, 4-first groove, 5-second groove, 6-exhaust hole. DETAILED DESCRIPTION

[0054] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and a specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0055] Features such as component models, material names, connection structures, control methods, etc. that are not clearly stated in this technical solution shall be deemed as common technical features disclosed in the prior art.

[0056] In the description of the present invention, it should be understood that the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0057] In the description of the present invention, "multiple" means two or more than two, unless otherwise specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a bolt connection or a welding connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] Tubeless tires have high requirements for road driving. Common tire quality defects are shoulder hollow, crown hollow and poor wear resistance. Therefore, the tire has high requirements for the pattern and should have good wear resistance and novel appearance. However, straight groove patterns, transverse groove patterns, longitudinal and transverse groove patterns, and block patterns cannot have good guiding, drainage, grip, puncture resistance and side slip resistance at the same time, and the traction or lateral force of the tire is not high. Based on this, the first aspect of the utility model provides a tread pattern structure of an all-steel load-bearing tubeless radial tire. Please refer to the structure of Figure 1 As shown, including:

[0059] Two first longitudinal grooves 1 are symmetrically arranged along the center point of the crown and distributed along the circumference of the tire tread, wherein the bottom surface of the first longitudinal groove 1 in the form of a circular arc transition extends radially outward to the tread surface to form a groove with a gradually increasing width;

[0060] A second longitudinal groove 2 is arranged outside the first longitudinal groove 1 and distributed along the circumferential direction of the tire tread, wherein the bottom surface of the second longitudinal groove 2 in the form of a circular arc transition extends radially outward to the tread surface to form a groove with a gradually increasing width;

[0061] The protrusions 3 are arranged between the two first longitudinal grooves 1 and between the first longitudinal groove 1 and the second longitudinal groove 2 to enhance the driving force and wear resistance of the tread.

[0062] In some specific implementations, please refer to Figure 1 As shown, the protrusion 3 includes:

[0063] A plurality of pattern blocks 301 are arranged between the two first longitudinal grooves 1 and between the first longitudinal grooves 1 and the second longitudinal grooves 2 and distributed along the circumferential direction of the tire tread. The pattern blocks 301 are arranged in three rows on the tread and are asymmetrically designed, so that the tread rigidity is crossed, and the left and right sides are similar to the "self-locking" function, which improves the straight-line driving stability of the vehicle on various road surfaces, has excellent drainage and snow discharge performance, enhances the driving stability on harsh ground, such as snowy and watery ground, and takes into account the driving function on normal roads;

[0064] And the connecting rib 302 connecting two adjacent pattern blocks 301 ensures the rigid connection between the pattern blocks 301, improves the friction between the pattern blocks 301 and the bottom surface, and increases the driving force of the tread.

[0065] For more specific implementations, please refer to Figure 1As shown, the raised portion 3 also includes a first steel sheet 303 arranged on the tread block 301, the first steel sheet 303 is located between the two first longitudinal grooves 1 and the arrangement direction of the first steel sheet 303 intersects with the circumferential direction of the tire tread. The setting of the first steel sheet 303 increases the friction between the tread block 301 arranged between the two first longitudinal grooves 1 and the ground, increases the ground contact area, ensures strong grip and handling performance, cooperates with the shoulder groove, is beneficial to drainage, improves wet braking performance and improves the wear resistance of the tread, and increases the driving force of the tread.

[0066] For more specific implementations, please refer to Figure 1 As shown, the raised portion 3 also includes a second steel sheet 304 arranged on the pattern block 301, the second steel sheet 304 is located between the first longitudinal pattern groove 1 and the second longitudinal pattern groove 2, and the arrangement direction of the second steel sheet 304 is parallel to the circumferential direction of the tire tread. The arrangement of the second steel sheet 304 increases the friction between the pattern block 301 arranged between the two first longitudinal pattern grooves 1 and the ground, increases the ground contact area, ensures strong grip and handling performance, cooperates with the shoulder groove, is beneficial to drainage, improves wet braking performance and improves the wear resistance of the tread, and increases the driving force of the tread.

[0067] In some specific implementations, please refer to Figure 1 As shown, a plurality of stone removal blocks 101 are arranged on the first longitudinal groove 1, and the design of the stone removal blocks 101 improves the stone removal and water removal performance of the tire.

[0068] In some specific implementations, please refer to Figure 1 As shown, the two walls of the first longitudinal groove 1 are of zigzag design, and the two walls of the second longitudinal groove 2 are of straight design and are partially zigzag with a smaller degree of zigzag than the first longitudinal groove 1. The constantly changing groove angle improves the traction and lateral force of the tire.

[0069] In some specific implementations, please refer to Figure 1 As shown, the inner wall of the second longitudinal groove 2 in the direction away from the first longitudinal groove 1 is arranged in a stepped manner and forms a plurality of steps 201. The setting of the steps 201 has the effect of removing stones and reducing noise.

[0070] In some specific implementations, please refer to Figure 1 As shown, the pattern structure further includes a plurality of alternately arranged first grooves 4 and second grooves 5 provided on the outer side of the second longitudinal groove 2 to improve the heat dissipation capacity of the tire, and the first grooves 4 and the second grooves 5 have different depths.

[0071] In some specific implementations, please refer to Figure 1As shown, a plurality of vent holes 6 are distributed on the first longitudinal groove 1, the second longitudinal groove 2, and the raised portion 3 to facilitate exhaust during vulcanization, prevent air pockets from causing rounded corners of the pattern and rubber deficiency on the sidewall, promote rubber flow, and make rubber vulcanization more uniform.

[0072] A second aspect of the utility model provides a tire, comprising:

[0073] tire carcass; and

[0074] The invention discloses a tread pattern structure of an all-steel load-bearing tubeless radial tire arranged on the tread of the tire carcass and as described above.

[0075] The above embodiments may be implemented individually or in any combination of two or more.

[0076] The above implementation is described in more detail below in conjunction with specific examples.

[0077] Example 1

[0078] Tubeless tires have high requirements for road driving. Common tire quality defects are hollow shoulders, hollow crowns and poor wear resistance. Therefore, the tire has high requirements for the pattern and should have good wear resistance and novel appearance. However, straight groove patterns, transverse groove patterns, longitudinal and transverse groove patterns, and block patterns cannot have good guiding, drainage, grip, puncture resistance and side slip resistance at the same time, and the traction or lateral force of the tire is not high. Based on this, this embodiment provides a tread pattern structure of an all-steel load-bearing tubeless radial tire. Please refer to the structure of Figure 1As shown, it includes two first longitudinal grooves 1, a second longitudinal groove 2, and a raised portion 3. The two first longitudinal grooves 1 are symmetrically arranged along the center point of the crown and distributed along the circumferential direction of the tire tread. The bottom surface of the first longitudinal groove 1 with a circular arc transition extends radially outward to the tread surface to form a groove with a gradually increasing width; the second longitudinal groove 2 is arranged on the outside of the first longitudinal groove 1 and distributed along the circumferential direction of the tire tread. The bottom surface of the second longitudinal groove 2 with a circular arc transition extends radially outward to the tread surface to form a groove with a gradually increasing width. The raised portion 3 is arranged between the two first longitudinal grooves 1 and between the first longitudinal groove 1 and the second longitudinal groove 2 to enhance the driving force and wear resistance of the tread. The first longitudinal groove 1 is arranged with a row of Stone 101. The design of the stone removal block 101 improves the stone removal and water drainage performance of the tire. The two walls of the first longitudinal groove 1 are of a zigzag design, and the two walls of the second longitudinal groove 2 are of a straight design and are partially zigzag and the degree of zigzag is less than that of the first longitudinal groove 1. The constantly changing groove angle improves the traction and lateral force of the tire. The inner wall of the second longitudinal groove 2 away from the first longitudinal groove 1 is arranged in a stepped manner and forms three steps 201. The setting of the steps 201 has the effect of removing stones and reducing noise. A plurality of exhaust holes 6 are distributed on the first longitudinal groove 1, the second longitudinal groove 2, and the raised portion 3 to facilitate exhaust during vulcanization, prevent air pockets from causing rounded corners of the pattern and lack of rubber on the sidewall, promote the flow of rubber, and make the rubber vulcanization more uniform.

[0079] Specifically, the raised portion 3 includes a pattern block 301, a connecting rib 302, a first steel sheet 303, and a second steel sheet 304. The pattern block 301 is arranged between two first longitudinal grooves 1 and between the first longitudinal groove 1 and the second longitudinal groove 2 and is distributed along the circumferential direction of the tire tread. The connecting rib 302 connects two adjacent pattern blocks 301. The connecting rib 302 ensures the rigid connection between the pattern blocks 301, improves the friction between the pattern block 301 and the bottom surface, and increases the driving force of the tread. The first steel sheet 303 is arranged on the pattern block 301 and is located between the two first longitudinal grooves 1. The arrangement direction of the first steel sheet 303 is parallel to the tire tread. The circumferentially intersecting, the setting of the first steel sheet 303 increases the friction between the pattern block 301 arranged between the two first longitudinal grooves 1 and the ground, improves the wear resistance of the tread, and increases the driving force of the tread, the second steel sheet 304 is arranged on the pattern block 301, the second steel sheet 304 is located between the first longitudinal groove 1 and the second longitudinal groove 2, and the arrangement direction of the second steel sheet 304 is parallel to the circumferential direction of the tire tread, the setting of the second steel sheet 304 increases the friction between the pattern block 301 arranged between the two first longitudinal grooves 1 and the second longitudinal groove 2 and the ground, improves the wear resistance of the tread, and increases the driving force of the tread.

[0080] In addition, the pattern structure also includes a plurality of alternately arranged first grooves 4 and second grooves 5 provided on the outer side of the second longitudinal grooves 2 to improve the heat dissipation capacity of the tire. The first grooves 4 and the second grooves 5 have different depths, which are 26.5 mm and 20.5 mm respectively.

[0081] Please see again Figure 2 As shown, Figure 2 It is a single-pitch pattern. In this embodiment, the tire tread pattern pitch is 57 sections and the running surface width is 214mm.

[0082] Specifically, the first longitudinal groove 1 has a width of 13 mm and a depth of 21 mm, the second longitudinal groove 2 has a width of 13 mm and a depth of 21 mm, the step 201 has a width of 2.5 mm and a depth of 4 mm, and the exhaust hole 6 has a diameter of 0.8 mm.

[0083] The working principle of this embodiment is as follows:

[0084] The tread blocks 301 are arranged in three rows on the tread, and are asymmetrically designed, so that the tread rigidity is crossed, and the left and right shapes are similar to the "self-locking" function, which improves the straight-line driving stability of the vehicle on various road surfaces, has excellent drainage and snow removal performance, enhances the stability of driving on harsh ground, such as snowy and watery ground, and takes into account the driving function on normal roads. The connecting ribs 302 ensure the rigid connection between the tread blocks 301, improve the friction between the tread blocks 301 and the ground, and increase the driving force of the tread. The setting of the first steel sheet 303 increases the friction between the tread blocks 301 set between the two first longitudinal grooves 1 and the ground, increases the ground contact area, ensures strong grip and handling performance, and cooperates with the shoulder grooves to facilitate drainage, improve wet braking performance and improve the wear resistance of the tread, increasing The driving force of the tread, the setting of the second steel sheet 304 increases the friction between the pattern block 301 set between the two first longitudinal grooves 1 and the ground, increases the ground contact area, ensures strong grip and handling performance, cooperates with the shoulder groove, is beneficial to drainage, improves wet braking performance and improves the wear resistance of the tread, increases the driving force of the tread, the design of the stone removal block 101 improves the stone removal and drainage performance of the tire, the two walls of the second longitudinal groove 2 are designed in a straight line and are partially tortuous and the degree of tortuosity is less than that of the first longitudinal groove 1, and the constantly changing groove angle increases the traction and lateral force of the tire, and the inner wall of the second longitudinal groove 2 away from the first longitudinal groove 1 is arranged in a stepped manner and forms a plurality of steps 201, and the setting of the steps 201 has the effect of removing stones and reducing noise. The alternately arranged first grooves 4 and second grooves 5 improve the heat dissipation capacity of the tire. In addition, the exhaust holes 6 facilitate exhaust during vulcanization to prevent air pockets from causing rounded corners of the pattern and lack of rubber on the sidewall, promote the flow of rubber, and make the vulcanization of the rubber more uniform.

[0085] Example 2

[0086] This embodiment provides a tire, comprising:

[0087] tire carcass; and

[0088] An all-steel load-bearing tubeless radial tire tread pattern structure is provided on the tire carcass tread and is as in Example 1.

[0089] Comparative Example 1

[0090] Compared with the embodiment 1, most of them are the same, except that the first groove 4 and the second groove 5 have the same depth.

[0091] Comparative Example 2

[0092] Compared with Example 1, most of them are the same, except that the arrangement direction of the first steel sheet 303 is parallel to the circumferential direction of the tire tread.

[0093] The rolling resistance and grip of Example 1, Comparative Example 1 and Comparative Example 2 were tested using ECE R117, and the test results are as follows:

[0094] performance Example 1 Comparative Example 1 Comparative Example 2 Rolling resistance N / KN 5.844 6.055 6.096 Wet road grip performance index G 1.16 1.02 1.08

[0095] It can be seen from the above table that after adopting the asymmetric design, the rolling resistance of the tire using the tread pattern structure provided in Example 1 is reduced, and the wet road grip performance index is increased.

[0096] The above description of the embodiments is to facilitate the understanding and use of the utility model by those skilled in the art. It is obvious that those familiar with the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the utility model is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the utility model without departing from the scope of the utility model should be within the scope of protection of the utility model.

Claims

1. A tread pattern structure of an all-steel load-bearing tubeless radial tire, characterized in that: include: Two first longitudinal grooves (1) are symmetrically arranged along the center point of the tread crown and distributed along the circumference of the tire tread, wherein the bottom surface of the first longitudinal groove (1) is in the form of a circular arc transition and extends radially outward to the tread surface to form a groove with a gradually increasing width; A second longitudinal groove (2) is arranged outside the first longitudinal groove (1) and distributed along the circumference of the tire tread, wherein the bottom surface of the second longitudinal groove (2) is in the form of a circular arc transition and extends radially outward to the tread surface to form a groove with a gradually increasing width; And a raised portion (3) is arranged between two first longitudinal grooves (1) and between the first longitudinal groove (1) and the second longitudinal groove (2) for enhancing the driving force and wear resistance of the tread.

2. The tread pattern structure of the all-steel load-carrying tubeless radial tire according to claim 1, characterized in that: The raised portion (3) comprises: A plurality of pattern blocks (301) are arranged between two first longitudinal grooves (1) and between the first longitudinal groove (1) and the second longitudinal groove (2) and distributed along the circumferential direction of the tire tread; and a connecting rib (302) connecting two adjacent pattern blocks (301).

3. The tread pattern structure of the all-steel load-carrying tubeless radial tire according to claim 2, characterized in that: The raised portion (3) further comprises a first steel sheet (303) arranged on the pattern block (301), wherein the first steel sheet (303) is located between two first longitudinal pattern grooves (1) and the arrangement direction of the first steel sheet (303) intersects with the circumferential direction of the tire tread.

4. The tread pattern structure of the all-steel load-carrying tubeless radial tire according to claim 2, characterized in that: The raised portion (3) further comprises a second steel sheet (304) arranged on the pattern block (301), wherein the second steel sheet (304) is located between the first longitudinal groove (1) and the second longitudinal groove (2), and the arrangement direction of the second steel sheet (304) is parallel to the circumferential direction of the tire tread.

5. The tread pattern structure of the all-steel load-carrying tubeless radial tire according to claim 1, characterized in that: A plurality of rows of stones (101) are arranged on the first longitudinal groove (1).

6. The tread pattern structure of the all-steel load-carrying tubeless radial tire according to claim 1, characterized in that: The two walls of the first longitudinal groove (1) are designed to be zigzag, and the two walls of the second longitudinal groove (2) are designed to be straight and partially zigzag, and the degree of zigzag is smaller than that of the first longitudinal groove (1).

7. The tread pattern structure of the all-steel load-carrying tubeless radial tire according to claim 1, characterized in that: The inner wall of the second longitudinal groove (2) in a direction away from the first longitudinal groove (1) is arranged in a stepped manner and forms a plurality of steps (201).

8. The tread pattern structure of the all-steel load-carrying tubeless radial tire according to claim 1, characterized in that: The pattern structure further comprises a plurality of alternately arranged first grooves (4) and second grooves (5) provided on the outer side of the second longitudinal groove (2), wherein the first grooves (4) and the second grooves (5) have different depths.

9. The tread pattern structure of the all-steel load-carrying tubeless radial tire according to claim 1, characterized in that: A plurality of exhaust holes (6) are distributed on the first longitudinal groove (1), the second longitudinal groove (2), and the raised portion (3).

10. A tire, characterized in that: include: Tire carcass; and A tread pattern structure of an all-steel load-bearing tubeless radial tire arranged on the tread of a tire carcass and as described in any one of claims 1-9.

Images