CN211519149U

CN211519149U - Annular closed pneumatic tire assembly

Info

Publication number: CN211519149U
Application number: CN201922348220.4U
Authority: CN
Inventors: 沈德
Original assignee: Chongqing Kanggol Intelligent Technology Co ltd
Current assignee: Chongqing Kanggol Intelligent Technology Co ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-09-18
Anticipated expiration: 2029-12-24

Abstract

The utility model discloses a closed pneumatic tire subassembly of annular, including rim and tire body, the cross section of tire body is closed annular, just the tire body is cyclic annular along axial formula as an organic whole, the tire cladding is in the rim outer lane. Adopt the utility model discloses an annular closed pneumatic tire improves the reliability and the security of tire. And the manufacturing precision of the rim is reduced, and the manufacturing cost of the rim is further reduced.

Description

Annular closed pneumatic tire assembly

Technical Field

The utility model relates to an inflatable tire especially relates to a low-speed integral type is from closed pneumatic tire.

Background

For vehicles running at low speed, such as agricultural machinery, transfer vehicles, electric two-wheeled vehicles, motor tricycles and the like, the speed of the vehicles is generally not more than 50km/h, and the wheels are generally divided into two types, namely solid tires and pneumatic tires. The solid tire has the defects of heavy weight, poor comfort, easy slippage of a tire body and a wheel hub and the like; the conventional pneumatic tire often needs to be inflated, sometimes has the problems of tire burst and the like, and the vacuum tire has high cost, is not easy to replace and is not resistant to impact and extrusion although the tire burst cannot be caused.

The conventional tire in the low-speed field is a vacuum tire or a common pneumatic tire with the widest application range.

For example, in chinese patent CN203623290U, a vacuum tire for a three-wheeled motorcycle is disclosed, and specifically discloses a tire comprising a tire crown, a tire shoulder and a tire side, wherein the tire crown is, from inside to outside, respectively provided with a natural rubber inner liner, at least two nylon cord fabric layers, a bead ring, a nylon band layer, a fiber puncture-proof layer and a tire tread; the nylon cord fabric layer and the nylon belt layer extend to form a tire side; the inner side of the tire sidewall is provided with a tire bead.

The machine walking tire is ploughed to another if disclose in chinese patent CN205997659U a little to specifically disclose including wheel hub, wheel hub and transmission shaft link to each other, the middle part of wheel hub anchor ring is provided with the annular, the wheel hub inner wall is cyclic annular flange, cyclic annular flange is including supporting bottom and vertical joint portion, still be provided with the inflation hole in the wheel hub, be connected with the valve inside in the inflation hole, the valve inside includes metal segment and rubber section, rubber section middle part is provided with the toper snap ring, the rubber section end is provided with spacing snap ring, be provided with pneumatic tire between the two cyclic annular flanges of wheel hub.

The pneumatic tire of this patent is non-closed with an annular inner carcass having openings and forming a pneumatic chamber together with a hub groove, and a valve core is provided directly to the hub.

The tyre body and the wheel hub of the inflatable tyre arranged in the mode form an inflatable inner cavity together, the reliability is low, and the tyre is easy to leak when the wheel hub deforms. And the pneumatic tire that mode set up like this, its rim needs to satisfy certain precision with the cooperation of tire body. If a metal iron wheel hub is adopted, the precision is poor. If an aluminum alloy hub is adopted, the precision is high, but the cost is high, and cracking is easy to occur under the impact.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a difficult gas leakage, the high and low cyclic annular closed pneumatic tire subassembly that is used for the low-speed field of rim required precision of reliability.

In order to achieve the above object, the present invention is realized as follows: the utility model provides a closed pneumatic tire subassembly of annular, includes rim and tire body, the cross section of tire body is closed annular, just the tire body is cyclic annular along axial formula as an organic whole, the tire cladding is in the rim outer lane. The annular closed type pneumatic tire arranged in the mode is characterized in that the tire body is self-closed, and the inner cavity of the tire body forms an inflation cavity, so that the manufacturing precision of the rim is reduced, and the manufacturing cost of the rim is reduced. When the tire is arranged on the rim, even if the rim deforms under stress, the pneumatic tire cannot leak, and the use reliability and the safety performance of the tire are improved.

In order to further improve the reliability of the tire, the tire body is provided with the inflating valve, the rim is provided with the inflating valve through hole, and when the tire body is installed on the rim, the inflating valve is inserted into the inflating valve through hole to realize positioning.

For further convenience in installation, the rim is of a two-piece structure and is divided into a left rim and a right rim, the middle part of the left rim is connected with the middle part of the right rim through screws, and the outer ring of the left rim and the outer ring of the right rim respectively extend out towards opposite sides to form a rim for fixing the tire body.

For further convenience in manufacture, the rim is of a one-piece construction and is divided into an intermediate support portion and an outer ring for securing the rim of the tire body.

Preferably, the valve through hole is arranged on the wheel rim.

In order to further improve the strength of the tire, a framework is spirally wound on the inner wall and/or the outer wall and/or the inner circumference of the tire body along the axial direction of the tire body in the tire body.

Has the advantages that:

the utility model discloses an annular closed pneumatic tire subassembly inflates the inner chamber through the self-sealing formula that tire body self formed, first reduced the manufacturing accuracy of rim for the rim can adopt low-cost metal to make. The second avoids the tire leakage that leads to because of the rim warp in the use, has improved the use reliability of tire, and has further improved the security performance, avoids leading to the gas leakage because of the tire rim and takes place danger.

And further make through two formula wheel rims the utility model discloses an annular closed tire installation is simple reliable. Even if a one-piece rim is adopted, the tire can be directly mounted on the rim due to certain elasticity of the tire. And the positioning is realized through the inflating valve on the tire and the inflating valve through hole on the rim, so that the use reliability is further improved.

The strength of the tire body is further improved through the framework wound on the tire body along the axial direction, and the safety performance of the tire in use is improved.

Drawings

FIG. 1 is a plan view of an annular closed tire assembly in example 1;

FIG. 2 is a plan view of the annular closed tire assembly in example 1;

FIG. 3 is a radial cross-sectional view of FIGS. 1 and 2;

fig. 4 is a cross-sectional view of a rim in example 1.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings, but the present invention is not limited to these embodiments, and any modifications or replacements within the basic spirit of the embodiments still fall within the scope of the present invention claimed in the claims.

Example 1: as shown in fig. 1, 3 and 4, the present embodiment provides a low-speed tire in which the low speed means a speed per hour lower than 50km/h according to the national regulations. The low-speed tire is generally used for agricultural machinery such as a mini-tiller, a weeding machine and a snow sweeper, or is used for motor vehicles or non-motor vehicles with the speed per hour lower than 50km/h, such as motor tricycles and two-wheel motorcycles.

The annular closed pneumatic tire in the present embodiment includes a tire body 1 and a rim 2. The tire body is provided with three positioning directions, namely a radial direction X, an axial direction Y and a circumferential direction Z. The tire body in this embodiment is provided in a self-sealing annular shape. The self-sealing ring shape is that a cross section is formed along the radial direction of the tire, the cross section is in a closed ring shape, the ring shape of the cross section is the circumferential direction of the tire body, and the tire body is in an integrated ring shape along the axial direction (the circumferential direction and the radial direction which are perpendicular to the tire body). That is, the tire body is closed in both the circumferential direction and the axial direction. Of course, as is well known to those skilled in the art, in order to inflate a pneumatic tire, the tire body thereof is necessarily provided with the valve 11.

And the rim is used for supporting the tire body, and the annular formed by the tire body along the axial direction covers the rim outer ring. In this embodiment, the rim is formed by a two-piece rim, and is divided into a left piece rim and a right piece rim. The middle part of the rim is a plane disc part 22, and the outer ring of the rim integrally extends out to one side. When the wheel is installed, two identical rims are adopted, the plane disc parts are attached and locked by the screws 3, and the outer ring of the wheel extends towards the reverse side to form a left rim and a right rim. The outwardly projecting portions of the left and right side rims form a rim 23 for embracing the tire body. And valve through holes 21 are provided on the rim. When the tire body is installed on the rim, the inflating valve is inserted into the inflating valve through hole to limit the tire body.

During installation, the tire body is clamped by the two-piece type wheel rim, and the inflating valve of the tire body is ensured to be inserted into the inflating valve through hole in the wheel rim. And then fastening the two rims by using screws.

As another embodiment in the present embodiment, a skeleton 4 is spirally wound to the inner wall and/or the outer wall and/or the inner circumference of the tire body in the axial direction of the tire body. Wherein the carcass may be a cord wound thereon at the time of manufacturing the tire body.

The annular closed type pneumatic tire of the embodiment has the advantages that the manufacturing precision of the rim is reduced through the self-closed type inflation inner cavity formed by the tire body, so that the rim can be made of low-cost metal. The second avoids the tire leakage that leads to because of the rim warp in the use, has improved the use reliability of tire, and has further improved the security performance, avoids leading to the gas leakage because of the tire rim and takes place danger. And further make through two formula wheel rims the utility model discloses an annular closed tire installation is simple reliable. And the positioning is realized through the inflating valve on the tire and the inflating valve through hole on the rim, so that the use reliability is further improved.

And the strength of the tire body is further improved through the framework wound on the tire body along the axial direction, and the safety performance of the tire in use is improved.

Example 2: as shown in fig. 1 and 3, the present embodiment provides a low-speed tire in which the low speed means a speed per hour lower than 50km/h according to the national regulations. The low-speed tire is generally used for agricultural machinery such as a mini-tiller, a weeding machine and a snow sweeper, or is used for motor vehicles or non-motor vehicles with the speed per hour lower than 50km/h, such as motor tricycles and two-wheel motorcycles.

The annular closed pneumatic tire in the present embodiment includes a tire body 1 and a rim 2. The tire body is provided with three positioning directions, namely a radial direction X, an axial direction Y and a circumferential direction Z. The tire body in this embodiment is provided in a self-sealing annular shape. The self-sealing ring shape is that a cross section is formed along the radial direction of the tire, the cross section is in a closed ring shape, the ring shape of the cross section is the circumferential direction of the tire body, and the tire body is in an integrated ring shape along the axial direction (the circumferential direction and the radial direction which are perpendicular to the tire body). That is, the tire body is closed in both the circumferential direction and the axial direction. Of course, as is well known to those skilled in the art, in order to inflate a pneumatic tire, the tire body thereof is necessarily provided with a valve.

And the rim is used for supporting the tire body, and the annular formed by the tire body along the axial direction covers the rim outer ring. In this embodiment, the rim is a one-piece rim 2, including a one-piece support portion in the middle and a rim 23 for securing a tire body. And valve through holes 21 are provided on the rim. When the tire body is installed on the rim, the inflating valve is inserted into the inflating valve through hole to limit the tire body.

When the tyre is installed, the tyre body can be installed on the wheel rim of the one-piece type wheel rim by utilizing the elasticity of the tyre body, and the valve of the tyre body is ensured to be inserted into the valve passing hole of the wheel rim. The tire body is then inflated using an external air source.

The annular closed type pneumatic tire of the embodiment has the advantages that the manufacturing precision of the rim is reduced through the self-closed type inflation inner cavity formed by the tire body, so that the rim can be made of low-cost metal. The second avoids the tire leakage that leads to because of the rim warp in the use, has improved the use reliability of tire, and has further improved the security performance, avoids leading to the gas leakage because of the tire rim and takes place danger. By adopting the one-piece rim, the tire can be directly mounted on the rim because the tire has certain elasticity. And the positioning is realized through the inflating valve on the tire and the inflating valve through hole on the rim, so that the use reliability is further improved.

Claims

1. An annular closed pneumatic tire assembly, includes rim and tire body, its characterized in that: the cross section of the tire body is in a closed annular shape, the tire body is in an integrated annular shape along the axial direction, and the tire is coated on the rim outer ring.

2. The annular closed pneumatic tire assembly of claim 1, wherein: the tyre is characterized in that the tyre body is provided with an inflating valve, the rim is provided with an inflating valve through hole, and when the tyre body is installed on the rim, the inflating valve is inserted into the inflating valve through hole to realize positioning.

3. The annular closed pneumatic tire assembly of claim 1 or 2, wherein: the wheel rim is of a two-piece structure and is divided into a left piece of wheel rim and a right piece of wheel rim, the middle part of the left piece of wheel rim is connected with the middle part of the right piece of wheel rim through screws, and the outer ring of the left piece of wheel rim and the outer ring of the right piece of wheel rim respectively extend towards opposite sides to form a wheel rim for fixing the tire body.

4. The annular closed pneumatic tire assembly of claim 1 or 2, wherein: the wheel rim is of a one-piece structure and is divided into a middle supporting part and an outer ring which are used for fixing the wheel rim of the tire body.

5. The annular closed pneumatic tire assembly of claim 3, wherein: the valve through hole is arranged on the wheel rim.

6. The annular closed pneumatic tire assembly of claim 5, wherein: and a framework is spirally wound to the inner wall and/or the outer wall and/or the inner circumference of the tire body along the axial direction of the tire body.

7. The annular closed pneumatic tire assembly of claim 4, wherein: the valve through hole is arranged on the wheel rim.

8. The annular closed pneumatic tire assembly of claim 7, wherein: and a framework is spirally wound to the inner wall and/or the outer wall and/or the inner circumference of the tire body along the axial direction of the tire body.