CN212446985U

CN212446985U - Two-in-one safety rim and safety tire

Info

Publication number: CN212446985U
Application number: CN202020558865.0U
Authority: CN
Inventors: 张宏冠
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-04
Filing date: 2020-04-15
Publication date: 2021-02-02
Anticipated expiration: 2030-04-15

Abstract

The utility model discloses a two unification insurance wheel rims and insurance tire relates to automobile tire structure, including the wheel rim body of tank bottom portion, bead seat and rim, wheel rim body tank bottom portion lateral wall is provided with the insurance circle of two radial evaginations, and two insurance circles are located tank bottom portion both sides respectively near bead seat position, and the insurance circle external diameter is greater than wheel rim body rim external diameter. The safety ring which is radially protruded outwards is arranged on the outer side wall of the bottom of the groove of the rim body, the sinking height of the tire after the tire burst and air leakage is effectively reduced, the inclination amplitude of the vehicle after the tire burst and air leakage is smaller, the vehicle cannot lose balance instantly, and the vehicle continues to run.

Description

Two-in-one safety rim and safety tire

Technical Field

The utility model relates to an automobile tire technical field, especially a insurance wheel rim.

Background

Because the pneumatic tire can alleviate vibration and impact during movement, the pneumatic tire has better comfort level, and is generally applied to automobile tires. Pneumatic tires are generally classified into tubed tires and vacuum tires.

At present, a common tire with an inner tube comprises the inner tube and an outer tube, has good bearing performance and high cost performance, is mostly used for trucks (heavy or light), but after the inner tube is punctured and the like to cause tire burst, air in the inner tube is easy to rapidly leak from the outer tube and the inner tube, so that the vehicle loses balance, and particularly, accidents are easy to happen during high-speed running.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a two unification insurance wheel rim to above-mentioned problem, rim body tank bottom lateral wall is provided with the insurance circle of radial evagination, makes this wheel rim axle center height when insurance circle contact ground and when the tire is normal the difference of height less, effectively reduces the tire and sinks the height after flat tire gas leakage for the vehicle is less including the tire range of slope after flat tire gas leakage, thereby can make the vehicle continue the driving distance as the support after the inner tube gas leakage.

In order to achieve the above purpose, the utility model adopts the technical proposal that:

two unification insurance wheel rims, the wheel rim body including tank bottom, child bead seat and rim, wheel rim body tank bottom lateral wall is provided with two radial evagination insurance circles, and two insurance circles are located tank bottom both sides respectively and are close to the child bead seat position, and the insurance circle external diameter is greater than wheel rim body rim external diameter.

Wherein, the outer tire is installed on the rim seat of the rim body, and the outer diameter of the safety ring is smaller than that of the outer tire. Therefore, the safety structure is arranged in the outer tire, the safety ring protrudes out of the rim by a certain height under the condition that the overall dimension of the tire is not influenced, so that the difference between the height of the axle center of the rim when the safety ring is in contact with the ground and the height of the rim when the tire is normal is smaller, the inclination amplitude of the vehicle after air leakage of the inner tire is smaller, and the vehicle can be used as a support to enable the vehicle to continue to travel for a distance after the air leakage of the inner tire.

Still provide an insurance tire based on aforementioned wheel rim, including the inner tube of a tyre, cover tire and aforementioned wheel rim, the opening that is annular array form and distributes is seted up along the circumferencial direction in the child reason department of cover tire, be provided with the guard ring on the inside wall of cover tire, the radial inward extension of guard ring, and the guard ring is located the cover tire and offers the opening side and lean on sidewall section position, the guard ring internal diameter is greater than cover tire child reason internal diameter, and the guard ring internal diameter is less than the guard ring external diameter, the inner tube of a tyre is arranged in on the tank bottom lateral surface and is in position between two guard rings, the cover tire child reason is.

Wherein, the inner tube is provided with an air tap, and the bottom of the groove is provided with a mounting hole for mounting the air tap.

Preferably, the opening extends radially outwardly from the outer tire bead on the outer tire sidewall section. Extending in the radial direction to maximize the outer tire bead caliber.

Preferably, the safety ring and the protective ring on the same side are mutually clung, and the safety ring is positioned between the protective ring on the same side and the tire side section of the outer tire on the same side. The protective ring is arranged on the inner side of the protective ring in a staggered mode, plays a role in isolation, and simultaneously prevents the inner tire from being extruded from the tire side section of the outer tire.

Preferably, the number of the protective rings is two, and the two protective rings are respectively positioned at positions close to the tire side sections at two sides of the tire casing. The protective ring plays a role in preventing the inner tube from bursting out from the opening of the side wall, and simultaneously can protect the inner tube and prevent the sharp tool from pricking into the inner tube from the side wall section with thinner thickness.

Preferably, the two sides of the opening of the tire bead of the outer tire are provided with notches to expose the inner steel wire, the notches are internally provided with metal pieces, and the metal pieces and the steel wire are connected in a welding mode to close the opening. The outer tire is wrapped outside the rim body, the protective ring is placed, the opening is sealed by welding, and finally the outer tire is installed on the rim seat of the rim body, so that firm installation can be realized, the possibility of outward turning due to the fact that the circumferential direction of the outer tire bead is not fixed can be prevented, and reliability is improved.

Preferably, the rim body is a split rim integrally connected by bolts. The inner tube has certain elasticity, and can be sleeved in the two safety rings after being stretched outwards; and the split wheel rim is adopted, so that the inner tube can be conveniently sleeved directly without stretching the inner tube to be sleeved through the safety ring.

Preferably, the safety ring is a circular ring-shaped steel product, the protection ring is a circular ring-shaped elastic rubber product, and the protection ring is sleeved on the inner side of the safety ring. The steel product formed by the safety ring and the wheel rim body integrally plays a supporting role after the tire burst; the protective ring is an elastic product, is sleeved in the protective ring by utilizing the elasticity of the protective ring, and then plays a role in isolating and protecting the inner tube.

Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:

the two-in-one safety wheel rim of the utility model is provided with the radial outward-protruding safety ring on the outer side wall of the bottom of the wheel rim body groove, so that the sinking height of the tire after the tire burst and air leakage is effectively reduced, the vehicle has smaller inclination amplitude after the tire bursts and air leakage, and the vehicle cannot lose balance instantly, so that the vehicle continues to run; the edge of the outer tire is provided with an opening, and the inner side installation caliber of the outer tire can be arranged corresponding to the safety ring so as to install the outer tire; the protection ring and the safety ring which are staggered are arranged in the outer tire, so that the inner tire is prevented from bursting out from the opening of the tire side, the inner tire can be protected, and a sharp tool is prevented from being pricked into the inner tire from the tire side section with thinner thickness to pierce the inner tire.

Drawings

Fig. 1 is a schematic view of the local internal structure of the rim according to the present invention.

Fig. 2 is a partial structural view of the rim of fig. 1.

Fig. 3 is a schematic view of a partial internal structure of another example of the rim according to the present invention.

FIG. 4 is a schematic view of the local internal structure of the tire of the present invention

Fig. 5 is a schematic view of the partial inner structure of the cover tire of the present invention.

FIG. 6 is a top view of the tire casing guard ring connection of FIG. 5.

FIG. 7 is a schematic view of the top view of the outer tire opening side of the present invention

FIG. 8 is a schematic view of the inner structure of the outer tire opening of the present invention

Fig. 9 is a schematic top view of the fixing structure at the tire casing opening of the present invention.

Fig. 10 is a schematic view of the local internal structure in a fully inflated state according to the present invention.

Fig. 11 is a schematic view of the local internal structure in a gas leakage state according to the present invention.

In the attached drawing, 1-a rim body, 11-a safety ring, 13-a split rim body, 14-a connecting section, 15-a bolt connecting piece, 2-an outer tire, 20-a tire crown section, 21-a tire side section, 22-an opening, 23-a protective ring, 24-a fixing piece, 3-an inner tire, 31-an air tap, 5-a steel wire, 6-a notch and 7-a metal piece.

Detailed Description

Example 1

Referring to fig. 1-2, fig. 2 is a schematic view of fig. 1 taken along a radial direction at a broken line z 1. The two-in-one safety rim of the embodiment 1 comprises a rim body 1 of a groove bottom, a bead seat and a rim, wherein two radially outwards protruding safety rings 11 are arranged on the outer side wall of the groove bottom of the rim body, the two safety rings 11 are respectively positioned on two sides of the groove bottom and abut against the bead seat, and the outer diameter of each safety ring is larger than the outer diameter of the rim body.

Referring to fig. 2, the safety ring is in the shape of a circular plate with a thickness of 2cm, the material and fabrication thereof can be integrally formed with the rim body, such as steel, and the structure and material of the rim body can refer to relevant industry standards, which are not described again here. Of course, the wheel rim and the safety ring can also be manufactured separately, the safety ring is provided with a radial opening, the safety ring is spread and sleeved on the wheel rim, and then the wheel rim is sealed and welded well.

The outer tire is arranged on the tire ring seat of the wheel ring body, and the outer diameter of the safety ring is smaller than that of the outer tire.

The wheel rim is used in the situation of being provided with an inner tube, such as a truck tire, the inner tube can be placed between two safety rings after being stretched by utilizing the elasticity of the inner tube, and the outer tire is arranged at a tire bead seat.

Referring to fig. 3, as another example of the rim, the rim body is a split rim integrally connected by bolts; in the prior art, a connection section 14 is arranged on a split type rim body 13 and is connected and fixed through a bolt connecting piece (a bolt and a nut) 15; the split rim can be directly sleeved into the inner tube without stretching the inner tube to be sleeved into the inner tube through the outer edge of the safety ring.

Referring to fig. 1, the length of the safety ring protruding out of the rim is a. Therefore, the safety structure is arranged in the outer tire, the safety ring protrudes out of the rim by a certain height a under the condition that the overall dimension of the tire is not influenced, so that the height difference between the axle center height of the rim and the normal height of the tire is smaller when the safety ring is in contact with the ground, the sinking height of the tire after the tire burst and air leakage is effectively reduced, the inclination amplitude of the vehicle after the tire burst and air leakage is smaller, the vehicle cannot lose balance instantly after the tire burst, and the vehicle can continue to travel for a distance as a support after the air leakage of the inner tire.

Example 2

Referring to fig. 4, with reference to the aforementioned rim structure, on the basis of embodiment 1, the safety tire of this embodiment 2 includes an inner tube 3, an outer tire 2 and the aforementioned rim, openings 22 distributed in an annular array shape are formed in a rim of the outer tire 2 along a circumferential direction, a protection ring 23 is disposed on an inner sidewall of the outer tire 2, the protection ring 23 extends radially inward, the protection ring 23 is located at a position where the opening side of the outer tire is close to a sidewall section 21, an inner diameter of the protection ring 23 is greater than an inner diameter of the rim of the outer tire 2, the inner diameter of the protection ring 23 is smaller than an outer diameter of the safety ring 11, the inner tube 3 is disposed on an outer side surface of a bottom of the groove and located between the two safety rings.

Wherein, the inner tube 3 is provided with an air nozzle 31, and the bottom of the groove is provided with a mounting hole for mounting the air nozzle.

Referring to fig. 5-7, fig. 6 is a schematic top view of the structure of fig. 5 taken along the line z 1. Preferably, the openings 22 extend radially outward from the outer tire bead on the outer tire sidewall segment and extend in a radial direction to maximize the outer tire bead mounting caliber. The number of the openings is one group, and the group of openings is arranged on one side of the outer tire at the moment; or two groups of openings are arranged at the tire rims at the two sides of the outer tire respectively; thus, the outer tire is installed on the rim body by combining the two protective rings.

Referring to fig. 7, the guard ring 23 is provided at the root of the sidewall section and extends along the inner wall of the sidewall section toward the bead. The guard ring has elasticity, is made of typical rubber, can be the same as the outer tire, and can be internally provided with radial reinforcing wires. The tyre body comprises a tyre crown section and tyre side sections at two sides of the tyre crown section, and the structure, the material and the like of the tyre body can be manufactured according to the industry standard and are not described again. The protective ring and the outer tire can be integrally formed; or the protective ring and the outer tire are manufactured respectively, and then the protective ring is bonded on the outer tire. Then, an opening is formed in the outer tire, the mounting caliber is enlarged, and the wheel rim body safety ring is further sleeved in a penetrating mode, so that mounting is completed. And finally, fixing the opening of the encapsulation cover tire.

Referring to fig. 5-7, in an example, the number of the guard rings may be 1, where the guard ring is located at the opening side of the outer tire, and the guard ring on the same side are closely attached to each other, and the guard ring is located between the guard ring on the same side and the sidewall section of the outer tire on the same side; the protection ring is arranged on the inner side of the safety ring in a staggered mode and is axially limited by the safety ring, and the inner tube is prevented from being extruded from the tire side section of the outer tire. In another example, the number of the guard rings 23 is two, and the two guard rings are respectively positioned at positions close to the sidewall sections on two sides of the outer tire; the protective ring plays a role in preventing the inner tube from bursting out from the opening of the side wall, and simultaneously can protect the inner tube and prevent the sharp tool from pricking into the inner tube from the side wall section with thinner thickness.

As mentioned above, the radial length of the outer tire is set to be increased from inside to outside in the range of 0-L, the outer edge of the safety ring extends outwards to the L/2 position, the inner edge of the safety ring extends inwards to the L/6 position after the installation is completed, the safety ring and the outer edge are installed in a staggered mode, and the inner tire is isolated and protected. At this time, the height difference before and after the tire burst was L/2.

Referring to fig. 8-9, a fastener 24 is provided at the outer tire bead opening 22 to close. In one example, the outer tire bead opening 22 is provided with notches 6 on both sides to expose the inner steel wire 5, the metal piece 7 is arranged in the notch 6, and the metal piece 7 and the steel wire 5 are connected by welding to close the opening. During installation, after the outer tire is wrapped outside the wheel rim body and the position of the protective ring is placed, the opening is sealed by welding, and finally the outer tire is installed on the tire rim seat of the wheel rim body, so that firm installation can be realized, the problem that the outer tire is not fixed in the circumferential direction of the tire rim and can be turned outwards is prevented, and the reliability is improved.

In another embodiment, through holes may be formed at both sides of the opening, and a binding band or a steel wire may be inserted into the through holes. Another example may be a hot melt adhesive that bonds the openings. Of course, the rim of the rim body and the tire bead of the outer tire can be designed to be hook-shaped like a U-shape so as to mutually hook and fix the tire bead of the outer tire.

The installation process comprises the following steps: when the tyre is installed, the inner tyre is installed on the rim; arranging an opening on the side of the outer tire I, and turning over and stretching the side of the outer tire I outwards to form a mounting opening; sleeving the rim into the outer tire through an installation opening at the side I of the outer tire; prying the protective ring out and sleeving the protective ring between the two protective rings; and correspondingly installing the tire beads on the two sides of the outer tire on the tire bead seats of the wheel rims to finish installation. So, cover tire child hat, wheel rim body groove bottom section, safety ring and protection circle enclose into the inner chamber, and the inner tube of a tyre is arranged in the inner chamber, utilizes cover tire, wheel rim body groove bottom section, safety ring, protection circle and the inner tube of a tyre after aerifing to be spacing each other, can fix cover tire rim on the tire bead seat. Of course, the opening of the side of the outer tire I can be encapsulated, so that the side of the outer tire I can be stably fixed on the tire bead seat.

The principle is the same as the structure of a safety steel ring which is generally arranged outside an outer tire, and the structure is as follows:

the safety ring protrudes out of the rim by a certain height a, so that the height difference between the height of the axle center of the rim when the safety ring is in contact with the ground and the height of the axle center of the rim when the tire is normal is smaller, the inclination amplitude of the vehicle after the tire leaks is smaller, the vehicle cannot lose balance instantly after the tire bursts, and the vehicle can continue to run for a distance by serving as a support after the tire leaks.

Referring to fig. 10, a partial internal structure diagram in a full air state is shown. After inflation, the inner tube is tightly attached to the inner side wall of the tire crown, the bottom wall of the groove, the inner wall of the safety ring and the inner wall of the protective ring, the thickness of the tire crown is b, the distance between the rim of the wheel and the ground is h0, the allowable height difference of bumping deformation can reach h0-a-b at most, namely the deformation height difference of the outer tire is not more than h0-a-b, the safety ring is not in rigid contact with the ground, and therefore the safety ring cannot extrude the inner tube and the outer tire during normal driving.

Fig. 11 is a schematic view of a local internal structure of the safety ring pressed down on the ground at the moment of tire burst and air leakage. At the moment of tire burst and air leakage, the safety ring is pressed down under the action of gravity, the tire crown and the protection ring of the outer tire are extruded on the ground, and the distance between the rim of the wheel rim and the ground is h 1; because the safety ring is pressed downwards and the outer tire is deformed, if the outer tire and the protective ring are damaged, the safety ring is directly pressed on the ground, the distance between the rim of the rim and the ground is changed into a, the height of the axle center of the rim sinks by h0-h1 or h0-a relative to the position before air leakage after tire burst and air leakage, the sinking height of the tire after tire burst and air leakage is effectively reduced, and the vehicle inclination amplitude caused by tire burst of the tire is reduced.

As mentioned above, the height difference between the height of the axle center of the wheel rim when the safety ring is in contact with the ground and the height of the wheel rim when the tire is normal is small, so that the inclination amplitude of the vehicle after the tire leaks is small, the vehicle cannot lose balance instantly when the tire bursts, and the vehicle can continue to run for a certain distance as a temporary support after the tire leaks, thereby being convenient for safer parking.

As mentioned above, the radial outward-protruding safety ring is arranged on the outer side wall of the bottom of the groove of the rim body, so that the descending height of the tire after the tire burst and air leakage is effectively reduced, the inclination amplitude of the vehicle after the tire burst and air leakage is smaller, the vehicle cannot lose balance instantly, and the vehicle continues to run; the edge of the outer tire is provided with an opening, and the inner side installation caliber of the outer tire can be arranged corresponding to the safety ring so as to install the outer tire; the protection ring and the safety ring which are staggered are arranged in the outer tire, so that the inner tire is prevented from bursting out from the opening of the tire side, the inner tire can be protected, and a sharp tool is prevented from being pricked into the inner tire from the tire side section with thinner thickness to pierce the inner tire.

The radial direction refers to a direction along a diameter or a radius of the rim or the outer tire; the foregoing inward, outward, inward, and outward sides are described with respect to the center and center axis of the rim and tire casing.

The above description is for the detailed description of the preferred possible embodiments of the present invention, but the embodiments are not intended to limit the scope of the present invention, and all equivalent changes or modifications accomplished under the technical spirit suggested by the present invention should fall within the scope of the present invention.

Claims

1. A two-in-one safety rim is characterized in that: the wheel rim comprises a groove bottom, a bead seat and a wheel rim body, wherein two radially outwards protruding safety rings are arranged on the outer side wall of the groove bottom of the wheel rim body, the two safety rings are respectively located on two sides of the groove bottom and close to the bead seat, and the outer diameter of each safety ring is larger than that of the wheel rim body.

2. A two-in-one safety rim as set forth in claim 1, wherein: the safety ring and the rim body are integrally formed.

3. A two-in-one safety rim as set forth in claim 1, wherein: the outer tire is installed on the tire bead seat of the wheel bead body, the safety ring is circular, and the outer diameter of the safety ring is smaller than that of the outer tire.

4. A run flat tire, comprising: the tire rim comprises an inner tire, an outer tire and the tire rim as claimed in claim 1, wherein openings distributed in an annular array shape are formed in the tire rim of the outer tire along the circumferential direction, a protection ring is arranged on the inner side wall of the outer tire, the protection ring extends radially inwards, the protection ring is located at the position, close to the tire side section, of the opening side of the outer tire, the inner diameter of the protection ring is larger than the inner diameter of the tire rim of the outer tire, the inner diameter of the protection ring is smaller than the outer diameter of the safety ring, the inner tire is arranged on the outer side surface of the bottom of a groove and is located between the two safety.

5. A run flat tire according to claim 4, wherein: the opening extends radially outward from the outer tire bead on the outer tire sidewall section.

6. A run flat tire according to claim 4, wherein: the number of the protection rings is two, and the two protection rings are respectively positioned at the positions close to the tire side sections at the two sides of the outer tire.

7. A run flat tire according to claim 4, wherein: the safety ring is closely attached to the protection ring on the same side, and the safety ring is positioned between the protection ring on the same side and the tire side section of the outer tire on the same side.

8. A run flat tire according to claim 4, wherein: the two sides of the opening of the tire bead of the outer tire are provided with notches to expose the inner steel wire, the notches are internally provided with metal pieces, and the metal pieces and the steel wire are connected in a welding mode to seal the opening.

9. A run flat tire according to claim 4, wherein: the wheel rim body is a split wheel rim which is connected into a whole by bolts.

10. A run flat tire according to claim 4, wherein: the safety ring is a circular ring-shaped steel product, the protection ring is a circular ring-shaped elastic rubber product, and the protection ring is sleeved on the inner side of the safety ring.