CN215435862U

CN215435862U - Runflat cover tire

Info

Publication number: CN215435862U
Application number: CN202120825953.7U
Authority: CN
Inventors: 耿鹏; 巫科炜
Original assignee: Hebei Wanda Tyre Co Ltd
Current assignee: Hebei Wanda Tyre Co Ltd
Priority date: 2021-04-21
Filing date: 2021-04-21
Publication date: 2022-01-07
Anticipated expiration: 2031-04-21

Abstract

The utility model belongs to the technical field of the tire and specifically relates to a tire cover is used in disappointing guarantor, including tread, side wall, child lip and the protective ring of butt on the rim, protective ring is along side wall circumference fixed connection on the side wall, and one side fixedly connected with boss of rim is kept away from to the protective ring, boss and side wall fixed connection, the boss is provided with a plurality ofly, and a plurality of bosses set up along the circumference of side wall. When the inner tube gas leakage, the cover tire is in low wind pressure driving state, the protective ring can block at the rim outer fringe this moment, prevent that the child lip from sliding into the rim kerve, consequently, can prevent that the cover tire from taking off the lip, the rim can be to the protective ring extrusion simultaneously, the protective ring can be to the direction slope of keeping away from the rim, the boss can reduce the degree that the protective ring slopes this moment, consequently, can reduce the protective ring and take place permanent deformation and with the fracture possibility of side wall connection, thereby can reduce the possibility that the cover tire drops from the rim, the purpose of the steadiness that promotes cover tire and rim and is connected has been reached.

Description

Runflat cover tire

Technical Field

The application relates to the field of tires, in particular to a run-flat cover tire.

Background

In the bicycle or electric vehicle industry, an outer tire is an annular outer shell of a pneumatic tire that can bear the load of the vehicle, prevent the inner tube from bulging after inflation, limit the outer rim dimensions of the tire, and protect the inner tube from mechanical damage.

The utility model discloses a patent that the grant bulletin number is CN201922859U can be referred to current cover tire concrete structure, and the cover tire includes tread, side wall and child lip, and the position that the side wall lower edge just is close to the child lip is provided with the protection piece, and protection piece bottom is just laminated in the rim outer fringe when the cover tire is installed on the rim, and the protection piece is evenly distributed in the whole circumference of side wall. When the inner tube leaks air, the outer tire is in a low air pressure running state, the protective block can be clamped at the outer edge of the rim at the moment, the tire lip is prevented from sliding into the bottom groove of the rim, and therefore the outer tire can be prevented from slipping off the tire lip, and the driving safety is improved.

To the correlation technique among the above-mentioned, at the child back of leaking gas, the rim can extrude the protection piece, and the protection piece can take place deformation this moment, uses a period after, and permanent deformation or coming off from the side wall can take place for the protection piece to can make the relative rim dislocation of cover tire or even come off, so the steadiness that cover tire and rim are connected is relatively poor.

SUMMERY OF THE UTILITY MODEL

In order to increase the steadiness that cover tire and rim are connected, this application provides a cover tire is used in disappointing.

The application provides a cover tire is used in disappointing that guarantees adopts following technical scheme:

the utility model provides a cover tire is used in disappointing guarantor's tyre, includes tread, side wall, child lip and the protective ring of butt on the rim, and protective ring is along side wall circumference fixed connection on the side wall, and one side fixedly connected with boss, boss and side wall fixed connection of rim are kept away from to the protective ring, and the boss is provided with a plurality ofly, and a plurality of bosses set up along the circumference of side wall.

Through adopting above-mentioned technical scheme, when the inner tube of a tyre gas leakage, the cover tire is in low wind pressure driving state, the protective ring can block at the rim outer fringe this moment, prevent that the child lip from sliding into the rim kerve, consequently, can prevent that the cover tire from taking off the lip, the rim can be to the protective ring extrusion simultaneously, the protective ring can be to the direction slope of keeping away from the rim, the boss can reduce the degree that the protective ring slopes this moment, consequently, can reduce the protective ring and take place permanent deformation and with the side wall connection fracture's possibility, thereby can reduce the possibility that the cover tire drops from the rim, the purpose of the steadiness that promotion cover tire and rim are connected has been reached.

Optionally, a limiting block is arranged between the two adjacent reinforcing blocks, and the limiting block is fixedly connected with the tire side.

Through adopting above-mentioned technical scheme, when the direction slope of keeping away from the rim in the protection ring, the protection ring can extrude the boss, and the boss can take place deformation this moment, and the boss can grow along cover tire circumference's length, and the stopper can play limiting displacement to the deformation of boss this moment, consequently can reduce the possibility that the boss shape becomes the elasticity limit that surpasss the boss, has reached the purpose of reducing the possibility that the boss damaged.

Optionally, a first notch is formed in one side, close to the reinforcing block, of the limiting block, and a second notch is formed in one side, close to the guard ring, of the limiting block.

Through adopting above-mentioned technical scheme, when the protection ring deformation drove the boss and takes place deformation, first notch provides the deformation space for the deformation of boss, and the second notch provides the deformation space for the deformation of protection ring, consequently can reduce the possibility that protection ring and boss deformation back child fracture, has reached the purpose that promotes the steadiness of cover tire.

Optionally, a protective surface is fixedly connected between the two beads.

Through adopting above-mentioned technical scheme, in the use, the protection face can shelter from between inner tube of a tyre and rim, and the protection face can reduce the possibility of inner tube of a tyre and rim contact this moment, consequently can reduce the possibility that the spoke punctures the inner tube of a tyre or rim wearing and tearing inner tube of a tyre, has reached the purpose of reducing the possibility of inner tube damage.

Optionally, be provided with first fold along the radial of the outer tire of keeping flat of losing air on the side wall, the length direction of first fold sets up the circumference to the side wall.

Through adopting above-mentioned technical scheme, in the use, the inner tube of a tyre can be aerifyd and prop the cover tire, and first fold can be propped by the inner tube of a tyre this moment, consequently first fold can provide the space of radially propping up along the cover tire for the cover tire to can reduce the damaged possibility of cover tire, reach the purpose that promotes the steadiness of cover tire.

Optionally, the circumference of following the outer tire of guarantor's run-flat is provided with the second fold on the side wall, and the length direction of second fold sets up to the radial of side wall.

Through adopting above-mentioned technical scheme, in the use, the inner tube is aerifyd and is propped the cover tire, and the second fold can be propped by the inner tube this moment, and the second fold can provide the inflation space for the cover tire along the circumference of cover tire to can reduce the cover tire and expand the too big possibility that leads to the cover tire to damage along cover tire circumference, reach the purpose that further promotes the steadiness of cover tire.

Optionally, a convex block is fixedly connected to the tread along the circumferential direction of the tread, and a plurality of grooves are formed in the convex block.

Through adopting above-mentioned technical scheme, at the in-process that uses the cover tire, one side that the tread was kept away from to the lug of cover tire can with ground direct contact, the fluting of seting up on the lug can make lug and ground contact's frictional force increase, consequently can increase the land fertility of grabbing of tread, has reached the purpose that improves the land fertility of grabbing of cover tire.

Optionally, the groove extends from the middle position of the tread to two sides of the tread along the positive rotation direction of the run-flat cover tire, and one end of the groove far away from the middle position of the tread penetrates through the lug.

Through adopting above-mentioned technical scheme, when the cover tire on the road surface course of work, the cover tire can be along the circumferential direction of cover tire, if there is ponding on the road surface, ponding can be followed the striation through the flute and kept away from the port outflow of tread intermediate position, consequently can reduce the possibility that the cover tire scurry, has reached the purpose that promotes the equilibrium and the stability that the cover tire traveled.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the reinforcing block is arranged, so that the inclination degree of the protective ring can be reduced, the possibility of permanent deformation of the protective ring and connection fracture with the tire side can be reduced, the possibility of falling off of the outer tire from the rim can be reduced, and the purpose of improving the connection stability of the outer tire and the rim is achieved;

2. by arranging the limiting block, the possibility that the shape of the reinforcing block exceeds the elastic limit of the reinforcing block can be reduced, and the purpose of reducing the possibility of damage of the reinforcing block is achieved;

3. through setting up the protection face, can reduce the possibility of inner tube and rim contact, consequently can reduce the spoke and puncture the possibility of inner tube or rim wearing and tearing inner tube, reach the purpose that reduces the possibility of inner tube damage.

Drawings

FIG. 1 is a schematic view of a run-flat tire casing according to an embodiment of the present application;

figure 2 is a schematic illustration highlighting the configuration of flutes;

fig. 3 is a partially enlarged view of a portion a of fig. 1.

Description of reference numerals: 1. a tread; 2. a sidewall; 21. a first fold; 22. a second fold; 3. a fetal lip; 4. a bump; 41. grooving; 5. a guard ring; 6. a reinforcing block; 7. a limiting block; 71. a first notch; 72. a second notch; 8. and (5) protecting the surface.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a cover tire, which is used for being installed on a rim and running on the ground. Referring to fig. 1, the cover tire includes tread 1, sidewall 2 and child lip 3, and sidewall 2 and child lip 3 all are provided with two, and two sidewalls 2 distribute respectively in 1 both sides of tread, and two child lips 3 distribute respectively in 1 both sides of tread, and child lip 3 joint is in the rim, tread 1 and ground contact. During use, the outer tire rotates relative to the ground, and the outer tire can run on the ground.

Referring to fig. 2, a convex block 4 is fixedly connected to the tread 1 along the circumferential direction of the tread 1, a plurality of grooves 41 are formed in the convex block 4, the grooves 41 extend from the middle position of the tread 1 to the two sides of the tread 1 along the positive rotation direction of the cover tire, the end part of the groove 41 close to the middle position of the tread 1 is closed, one end of the groove 41 far away from the middle position of the tread 1 penetrates through the convex block 4, and the grooves 41 are uniformly distributed along the circumferential direction of the cover tire. In the in-process of using the cover tire, one side that the tread 1 was kept away from to the lug 4 of cover tire can with ground direct contact, the fluting 41 of seting up on the lug 4 can make lug 4 and ground contact's frictional force increase, consequently can increase the land fertility of grabbing of tread 1, if there is ponding on the road surface, ponding can be followed the striae through fluting 41 and kept away from the port outflow of tread 1 intermediate position, consequently, can reduce the possibility that the cover tire paddled, reached the mesh that promotes the equilibrium and the stability that the cover tire travel.

Referring to fig. 1, the outer tire further comprises a protective ring 5, the protective ring 5 abuts against a rim, and the protective ring 5 is fixedly connected to the tire side 2 along the circumferential direction of the tire side 2; one side, far away from the rim, of the protective ring 5 is fixedly connected with a reinforcing block 6, the reinforcing block 6 is fixedly connected with the tire side 2, a plurality of reinforcing blocks 6 are arranged, the plurality of reinforcing blocks 6 are uniformly arranged along the circumferential direction of the tire side 2, and the thickness of the reinforcing block 6 is gradually reduced from the end part close to the protective ring 5 to the end part, far away from the protective ring 5, of the reinforcing block 6; a limiting block 7 is arranged between two adjacent reinforcing blocks 6, and the limiting block 7 is fixedly connected to the tire side 2; a first notch 71 is formed in one side, close to the reinforcing block 6, of the limiting block 7, and the end, far away from the tire side 2, of the first notch 71 penetrates through the limiting block 7; one side of the limiting block 7 close to the protective ring 5 is provided with a second notch 72, and the end part of the second notch 72 far away from the sidewall 2 penetrates through the limiting block 7.

Referring to fig. 1, when the inner tube leaks air, the outer tire is in a low air pressure running state, the protective ring 5 can be clamped at the outer edge of the rim, and the tire bead 3 is prevented from sliding into the bottom groove of the rim, so that the outer tire can be prevented from falling off the tire bead, meanwhile, the rim can extrude the protective ring 5, the protective ring 5 can incline towards the direction far away from the rim, and the reinforcing block 6 can reduce the inclination degree of the protective ring 5; referring to fig. 3, the limiting block 7 can limit the deformation of the reinforcing block 6, the first notch 71 provides a deformation space for the deformation of the reinforcing block 6, and the second notch 72 provides a deformation space for the deformation of the protection ring 5; therefore, the possibility that the protective ring 5 is permanently deformed and is connected with the tire side 2 to be broken can be reduced, the possibility that the tire casing falls off from the rim can be reduced, and the purpose of improving the stability of the connection between the tire casing and the rim is achieved.

The tyre side 2 is provided with first wrinkles 21 along the radial direction of the outer tyre, the first wrinkles 21 are convex outwards, and the length direction of the first wrinkles 21 is set to be the circumferential direction of the tyre side 2; the tire side 2 is provided with a second fold 22 along the circumferential direction of the tire casing, the length direction of the second fold 22 is set to be the radial direction of the tire side 2, the second fold 22 is provided with a plurality of second folds 22, and the plurality of second folds 22 are uniformly distributed along the circumferential direction of the tire side 2. In the using process, the inner tube is inflated and supports the outer tube, and at the moment, the first wrinkles 21 are supported by the inner tube, so that the first wrinkles 21 can provide a space for radially supporting the outer tube; simultaneously second fold 22 can be propped up by the inner tube, and second fold 22 can provide the inflation space for the cover tire along the circumference of cover tire to can reduce the cover tire and expand the too big possibility that leads to the cover tire to damage along cover tire circumference, reach the purpose that promotes the steadiness of cover tire.

Referring to fig. 1, fixedly connected with protection face 8 between two child lips 3, protection face 8 is used for installing between rim and inner tube, and in the use, protection face 8 can shelter from between inner tube and rim, and protection face 8 can reduce the possibility of inner tube and rim contact this moment, consequently can reduce the possibility that the spoke punctures the inner tube or the rim wears the inner tube, has reached the purpose of reducing the possibility of inner tube damage.

The implementation principle of the run-flat cover tire of the embodiment of the application is as follows: when the inner tube leaks air, the outer tire is in a low-air-pressure running state, the protective ring 5 can be clamped at the outer edge of the rim, and the tire lip 3 is prevented from sliding into the bottom groove of the rim, so that the outer tire can be prevented from slipping off the lip; simultaneously the rim can be to the extrusion of protective ring 5, and protective ring 5 can be to keeping away from the direction slope of rim, and the reinforcing block 6 can reduce the degree of protective ring 5 slope this moment, consequently can reduce protective ring 5 and take place permanent deformation and with the fracture's of 2 connection of side walls possibility to can reduce the possibility that the cover tire drops from the rim, reach the purpose that promotes the steadiness that cover tire and rim are connected.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a cover tire is used in disappointing guarantor which characterized in that: including tread (1), side wall (2), child lip (3) and guard ring (5) of butt on the rim, guard ring (5) are along side wall (2) circumference fixed connection on side wall (2), and one side fixedly connected with boss (6) of rim are kept away from in guard ring (5), boss (6) and side wall (2) fixed connection, and boss (6) are provided with a plurality ofly, and the circumference setting of side wall (2) is followed in a plurality of boss (6).

2. The run flat tire of claim 1 wherein: and a limiting block (7) is arranged between the two adjacent reinforcing blocks (6), and the limiting block (7) is fixedly connected with the tire side (2).

3. The run flat tire of claim 2 wherein: a first notch (71) is formed in one side, close to the reinforcing block (6), of the limiting block (7), and a second notch (72) is formed in one side, close to the protective ring (5), of the limiting block (7).

4. The run flat tire of claim 1 wherein: a protective surface (8) is fixedly connected between the two tire lips (3).

5. The run flat tire of claim 1 wherein: the tire side (2) is gone up and is provided with first fold (21) along the radial of the guarantor's cover tire of losing heart, and the length direction of first fold (21) sets up the circumference into side wall (2).

6. The run flat tire of claim 1 wherein: the circumference of following the guarantor's cover tire of losing heart on side wall (2) is provided with second fold (22), and the length direction of second fold (22) sets up to the radial of side wall (2).

7. The run flat tire of claim 1 wherein: the tyre is characterized in that a convex block (4) is fixedly connected to the tyre surface (1) along the circumferential direction of the tyre surface (1), and a plurality of grooves (41) are formed in the convex block (4).

8. The run flat tire of claim 7 wherein: the groove grooves (41) extend from the middle position of the tire tread (1) to two sides of the tire tread (1) along the positive rotating direction of the run-flat tire casing, and one end, away from the middle position of the tire tread (1), of the groove grooves (41) penetrates through the convex block (4).