WO2021121245A1 - 一种防滑气动可伸缩式轮胎 - Google Patents

一种防滑气动可伸缩式轮胎 Download PDF

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Publication number
WO2021121245A1
WO2021121245A1 PCT/CN2020/136705 CN2020136705W WO2021121245A1 WO 2021121245 A1 WO2021121245 A1 WO 2021121245A1 CN 2020136705 W CN2020136705 W CN 2020136705W WO 2021121245 A1 WO2021121245 A1 WO 2021121245A1
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Prior art keywords
tire
cylinder
air
skid
wheel
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PCT/CN2020/136705
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English (en)
French (fr)
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李满元
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晋州风吹柳机械科技有限责任公司
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Publication of WO2021121245A1 publication Critical patent/WO2021121245A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/14—Anti-skid inserts, e.g. vulcanised into the tread band
    • B60C11/16—Anti-skid inserts, e.g. vulcanised into the tread band of plug form, e.g. made from metal, textile
    • B60C11/1606—Anti-skid inserts, e.g. vulcanised into the tread band of plug form, e.g. made from metal, textile retractable plug
    • B60C11/1612—Anti-skid inserts, e.g. vulcanised into the tread band of plug form, e.g. made from metal, textile retractable plug actuated by fluid, e.g. using fluid pressure difference
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/14—Anti-skid inserts, e.g. vulcanised into the tread band
    • B60C11/16—Anti-skid inserts, e.g. vulcanised into the tread band of plug form, e.g. made from metal, textile
    • B60C11/1643—Anti-skid inserts, e.g. vulcanised into the tread band of plug form, e.g. made from metal, textile with special shape of the plug-body portion, i.e. not cylindrical
    • B60C11/165—Anti-skid inserts, e.g. vulcanised into the tread band of plug form, e.g. made from metal, textile with special shape of the plug-body portion, i.e. not cylindrical conical

Definitions

  • the present invention relates to the technical field of vehicle parts, and more specifically, it relates to an anti-skid pneumatic telescopic tire.
  • the purpose of the present invention is to provide a wheel equipped with pneumatically retractable cleats to solve the above-mentioned problems.
  • a wheel equipped with pneumatically retractable cleats comprising a hub and a tire and an inner tube sleeved on the hub.
  • a number of pneumatic telescopic cleat devices are embedded in the tire; the pneumatic telescopic cleat device includes a cylinder (full) embedded in the tire.
  • Embedded or semi-embedded heavy-duty tires are fully embedded, ordinary tires are semi-embedded) and a piston rod set in a cylinder that moves under the action of air pressure.
  • the piston rod includes a piston and a non-slip integrally formed on one end of the piston Nail, the air inlet and outlet of the cylinder are communicated with the high-pressure air source through the air pipe.
  • the cylinder is embedded in the outer tire, and a flared nail outlet is provided on the surface of the tire so that the cleats can extend and the opening faces inward.
  • the air inlet and the air outlet of the cylinder are in communication with the high-pressure air source through a two-way air pressure reduction valve.
  • the two-way air pressure reduction valve is a microcomputer-controlled air valve
  • the power cord of the two-way air pressure reduction valve is connected to an external power source
  • the control switch of the two-way air pressure reduction valve is set in the cab, and can also be controlled by wireless remote control.
  • the high-pressure air source is the inner tube of the wheel.
  • the two-way air pressure reduction valve is directly arranged in the high-pressure tire cavity of the tire, or it can also be placed outside the tire, and is reasonably selected according to actual vehicle conditions.
  • the air inlet of the bidirectional air pressure reduction valve is in communication with the air inlet of the inner tube.
  • the protruding length and the protruding rate of the cleats can be adjusted reasonably, which can more comprehensively adapt to the requirements of the use environment and the vehicle.
  • a boss is arranged on the middle surface of the cleat, and a spring is arranged between the boss and the outlet end of the cylinder.
  • a steel wire harness net or a metal pin hinge type steel plate for maintaining the fixed form of the cylinder is arranged in the outer tire.
  • the cleats extend in the diameter direction of the wheel.
  • the present invention has the following beneficial effects:
  • the wheel of the present invention is equipped with a pneumatic retractable cleat device for the tire, which can be activated when needed, so that the cleat sticks out of the tire surface and directly contacts the ground, thereby improving the grip of the wheel;
  • the pneumatic telescopic cleat device does not need to be disassembled and does not affect the normal driving of the wheels, and does not affect the smoothness of the wheels.
  • a retractable cleat device which uses the cylinder piston rod device, and at the same time connects the cylinder to the high-pressure air source through a two-way air pressure reduction valve, which can facilitate the expansion and recovery of the piston rod, thereby achieving a retractable type Conversion of the working state of the cleat device.
  • the wheel can use a high-pressure air pump as the air source, or directly use the high-pressure gas in the tire as the air source.
  • a steel wire bundle net is arranged in the tire casing with a fixed net or a metal pin hinged steel plate for fixing the cylinder block, which can keep the cylinder in a good working condition, and the position and shape of the cylinder will not change.
  • the wheel of the present invention is easy to use, easy to control, and has good comprehensive performance.
  • Figure 1 is a cross-sectional view of a wheel equipped with pneumatically retractable cleats in the present invention
  • Figure 2 is a schematic diagram of the structure of the pneumatic telescopic cleat device in the present invention.
  • Figure 3 is a schematic diagram of the structure of the two-way air pressure reduction valve in the present invention.
  • the purpose of the present invention is to provide an anti-skid pneumatic retractable tire to solve the problems existing in the prior art, to provide retractable cleats for the wheels, and to extend the anti-skid stabilizers to provide the grip of the tires of the wheels when needed.
  • the anti-slip is positioned in the tire of the wheel when it is not needed.
  • the wheel mainly includes a wheel hub 1 and a tire set on the wheel hub 1. Among them, the tire is divided into outer tube 2 and inner tube 3. The inner tube is inflated and has a high-pressure tire cavity. Tire 2 has good wear resistance and high structural strength.
  • the improvement of the wheel lies in that a number of pneumatic telescopic cleat devices are embedded in the outer tire 2.
  • the pneumatic telescopic anti-skid device specifically includes a cylinder 4 embedded in the outer tire 2 and a piston rod arranged in the cylinder 4 to move under the action of air pressure.
  • the main structure of the pneumatic telescopic cleat device is a high pressure cylinder, and the outermost end of the piston rod of the high pressure cylinder is set as a sharp angle structure, so that the piston rod is similar to the stator structure as a whole.
  • the piston rod includes a piston 5 and a cleat 6 integrally formed on one end surface of the piston 5.
  • the piston rod is installed in the cylinder 4, the piston 5 of the piston rod is arranged inward, and the piston 5 divides the cylinder 4 into an air inlet cavity on the inner side and a return air cavity on the outer side.
  • An air inlet 17 is provided at the lower end of the air intake cavity, and an air return port 18 for a cylinder is provided at the upper end of the air return cavity.
  • Both the intake port 17 and the cylinder return port 18 are communicated with a high-pressure gas source through a gas pipe 9. Inflation through the air inlet 17 can cause the piston rod to extend, and air inflation through the air return port 18 of the cylinder can retract the piston rod.
  • a sealing ring is arranged on the outer surface of the piston 5, and a sealing ring is arranged on the side wall of the outlet end of the cylinder 4.
  • the cleats 6 extend along the diameter of the wheel. In this state, the force of the cleats 6 is in the best state, can withstand the weight of the vehicle, and is not easily damaged.
  • a two-way air pressure reduction valve 7 is used to supply high-pressure air to the cylinder 4, and the two-way air pressure reduction valve functions to control the flow direction of the air flow.
  • Both the air inlet and the air outlet of the cylinder 4 are communicated with a high-pressure air source through a bidirectional air pressure reduction valve 7.
  • the two-way air pressure reduction valve 7 used is a microcomputer-controlled air valve
  • the power cord of the two-way air pressure reduction valve 7 is connected to an external power source
  • the control switch of the two-way air pressure reduction valve 7 is set in the cab.
  • the operation of the bidirectional air pressure reduction valve 7 is controlled by the control switch 14 to realize the expansion and contraction control of the piston rod in the cylinder 4.
  • a two-way air pressure reduction valve that can be remotely controlled wirelessly can be selected and controlled by remote control.
  • the external power source 13 can be a vehicle-mounted power source, or be equipped with a storage battery or dry battery pack.
  • the two-way air pressure reduction valve 7 is provided with an air return port 15 to communicate with the outside. As shown in Figure 3.
  • a high-pressure air pump can be provided, or the high-pressure air in the inner tube 3 of the wheel can be used.
  • the two-way air pressure reduction valve 7 can be directly arranged in the high-pressure tire cavity of the inner tube 3. At this time, it is suitable to use a two-way air pressure reduction valve that can be remotely and wirelessly controlled. Alternatively, the air inlet of the two-way air pressure reduction valve 7 can be communicated with the air inlet 16 of the inner tube 3.
  • the cylinder 4 is embedded in the tire 2.
  • a mounting hole is provided on the surface of the outer tire 2 for inserting the cylinder 4 into it.
  • the opening of the mounting hole on the surface of the tire 2 is the nail outlet, and the cleats protrude from the nail outlet. Set the nail outlet into a trumpet shape with the opening facing inward.
  • the anti-skid stud 6 only needs a small section to protrude and protrude from the surface of the tire 2 to achieve the anti-slip effect.
  • multiple pneumatic telescopic cleat devices need to be provided in the outer tire 2.
  • a steel wire bundle net 8-1 is arranged in the inner tire 2, similar to the annular steel wire bundle net 8-1 arranged in the interlayer of the outer tire 2, and the cylinder 4 passes through the steel wire bundle net 8-1 outwards.
  • Two concentric wire harness nets 8-1 can be arranged, so that the cylinder 4 can be well fixed in the outer tire 2 and maintain a good working form.
  • a wire harness net 8-1 should be installed at the innermost end of the cylinder 4.
  • Another structure is that two concentric and adhered steel wire bundle nets 8 are arranged, a fixing plate 12 is arranged between the two steel wire bundle nets 8-1, and the air cylinder 4 passes through the fixing plate 12.
  • a metal pin hinged steel plate 8-2 is usually inlaid between the outer tire 2 and the inner tire 3. The wire harness net 8-1 and the metal pin hinged steel plate 8-2 play the same role and can be replaced with each other.
  • a further improvement is that a boss 10 is provided on the middle surface of the cleat 6, and a spring 11 is provided between the boss 10 and the outlet end of the cylinder 4.
  • a steel wire harness net or a metal pin hinged steel plate is arranged outside the innermost end of the cylinder 4 to support the cylinder 4.
  • the trachea in the present invention generally uses a high-strength PU trachea.
  • the wheel of the present invention is equipped with a pneumatic retractable cleat device for the tire, which can activate the cleat device as required to improve the grip of the wheel; when not in use, the pneumatic retractable cleat device does not need to be disassembled, only the cleats need to be removed Partial recovery is sufficient, and the driving stability of the wheels will not be affected.
  • the retractable cleat device of the present invention connects the cylinder with the high-pressure air source through the two-way air pressure reduction valve by setting the cylinder and cleats at the same time, which can facilitate the control of the expansion and recovery of the piston rod, and realize the work of the retractable cleat device State transition.
  • the wheel of the invention is convenient to use and easy to control.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Tires In General (AREA)

Abstract

一种防滑气动可伸缩式轮胎，包括轮毂（1）和套装在轮毂（1）上的外胎（2）和内胎（3），外胎（2）内镶嵌设置若干气动伸缩防滑钉装置；气动伸缩防滑钉装置包括镶嵌在外胎（2）内的气缸（4）以及设置在气缸（4）内在气压作用下移动的活塞杆，活塞杆包括活塞（5）以及一体成型在活塞（5）一端面的防滑钉（6），气缸（4）的进气口和出气口通过气管（9）与高压气源连通，车轮的轮胎部分设置了气动可伸缩式防滑钉装置，在需要时能够启动防滑钉装置，通过防滑钉与地面接触提高车轮的抓地力；在不使用时，防滑钉装置无需拆卸而又不影响车轮的正常的行驶，使用性能好，适应性好。

Description

一种防滑气动可伸缩式轮胎 技术领域
本发明涉及车辆部件的技术领域，更具体地说，它涉及一种防滑气动可伸缩式轮胎。
背景技术
在雨雪冰冻天气时，路面上有雪或者结冰，普通轮胎的抓地力不足，不仅影响正常行驶，还具有安全隐患。通常，在雨雪冰冻天气。汽车都装上了防滑链以免发生事故。现有的防滑链都是汽车的防滑链，其的缺点在于，在使用时需要临时安装到轮胎上，而在不使用时，需要从轮胎上拆卸下来。防滑链的拆卸较为麻烦。
现在有一种防滑钉，预先在轮胎上留安装孔，在需要时将防滑钉安装到轮胎上，该方案仍然需要有个拆装的过程。因此，有必要研发一种同轮胎结合的防护钉装置。
发明内容
本发明的目的是提供一种设置气动可伸缩式防滑钉的车轮，来解决上述问题。
本发明的上述技术目的是通过以下技术方案得以实现的：
一种设置气动可伸缩式防滑钉的车轮，包括轮毂和套装在轮毂上的外胎和内胎，外胎内镶嵌设置若干气动伸缩防滑钉装置；所述气动伸缩防滑钉装置包括镶嵌在外胎内的气缸(全嵌入式或半嵌入式：载重型车胎为全嵌入式，普通车胎为半嵌入式)以及设置在气缸内在气压作用下移动的活塞杆，所述活塞杆包括活塞以及一体成型在活塞一端面的防滑钉，气缸的进气口和出气口通过气管与高压气源连通。
优选地，气缸镶嵌在外胎内，在轮胎表面设置使防滑钉能够伸出且开口朝内的喇叭形出钉口。
优选地，气缸的进气口和出气口通过双向气压减速阀与高压气源连通。
优选地，双向气压减速阀为微电脑控制式气阀，双向气压减速阀的电源线与外接电源连接，双向气压减速阀的控制开关设置在驾驶室内，亦可无线遥控控制。
优选地，高压气源为车轮的内胎。
优选地，双向气压减速阀直接设置在车胎的高压胎腔内，亦可放置于车胎外部，根据实际车辆情况合理选配。
优选地，双向气压减速阀的进气口与内胎的打气口连通。
优选地，防滑钉伸出长度和伸出率都可合理调节，可更全面的适应使用环境和车辆的要求。
优选地，防滑钉中部表面设置凸台，所述凸台与气缸的出口端之间设置弹簧。
优选地，外胎内设置用于保持气缸固定形态的钢丝束网或金属销铰链式钢板。
优选地，防滑钉沿车轮的直径方向伸出。
综上所述，本发明具有以下有益效果：
1、本发明的车轮，为轮胎设置气动可伸缩式防滑钉装置，在需要时能够启动防滑钉装置，使防滑钉伸出外胎表面以外直接与地面接触，从而提高车轮的抓地力；在不使用时，气动可伸缩式防滑钉装置无需拆卸且不影响车轮的正常的行驶，不影响车轮行驶的平稳性。
2、本发明中设计了可伸缩式防滑钉装置，利用了气缸活塞杆装置，同时将气缸通过双向气压减速阀同高压气源连通，能够便于进行活塞杆的伸缩和回收，从而实现可伸缩式防滑钉装置的工作状态的转换。该车轮可以利用高压气泵作为气源，也可以直接使用车胎内的高压气体作为气源。
3、本发明在轮胎的外胎内设置了钢丝束网配合固定网或金属销铰链式钢板用于固定气缸缸体，能够保持气缸处于良好的工作状态，气缸的位置形态不会改变。
4、本发明的车轮使用便捷性好，便于调控，综合使用性能好。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附 图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本发明中设置气动可伸缩式防滑钉的车轮的剖面视图；
图2为本发明中气动伸缩防滑钉装置的结构示意图；
图3为本发明中双向气压减速阀的结构示意图；
图中：1、轮毂，2、外胎，3、内胎，4、气缸，5、活塞，6、防滑钉，7、双向气压减速阀，8-1、钢丝束网，8-2、金属销铰链式钢板，9、气管，10、凸台，11、弹簧，12、固定板，13、外接电源，14、控制开关，15、减速阀回气口，16、打气口，17、进气口，18、气缸回气口。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明的目的是提供一种防滑气动可伸缩式轮胎，以解决现有技术存在的问题，为车轮设置可伸缩式防滑钉，在需要的时候使防滑定伸出提供车轮的轮胎的抓地力，在不需要的时候防滑定位于车轮的轮胎内。
为使本发明的上述目的、特征和优点能够更加明显易懂，下面结合附图和具体实施方式对本发明作进一步详细的说明。
如图1所示，是设置气动可伸缩式防滑钉的车轮，是基于现有车轮的改进。车轮主要包括轮毂1和套装在轮毂1上的轮胎。其中，轮胎又分外胎2和内胎3。内胎充气，具有高压胎腔。外胎2耐磨性好，结构强度高。
该车轮的改进在于，在外胎2内镶嵌设置若干气动伸缩防滑钉装置。所述气动伸缩防滑钉装置，具体的包括镶嵌在外胎2内的气缸4以及设置在气缸4内在气压作用下移动的活塞杆。气动伸缩防滑钉装置主体结构为高承压气缸，将高承压气缸的活塞杆的最外端设置为尖角结构，使活塞杆整体上类似与定子的结构。
如图2所示，活塞杆包括活塞5以及一体成型在活塞5一端面的防滑钉6。活塞杆安装到气缸4内，活塞杆的活塞5朝里设置，活塞5将气缸4分为处于内侧的进气腔和处于外侧的回气腔。进气腔最下端设置进气口17，回气腔最上端设置气缸回气口18。进气口17和气缸回气口18均通过气管9与高压气源连通。通过进气口17充气能够使活塞杆外伸，通过气缸回气口18充气能够使活塞杆收回。在活塞5的外圆表面设置密封圈，在气缸4的出口端的侧壁设置密封圈。
在具体的实施中，优先地，保证防滑钉6沿车轮的直径方向伸出，该状态下，防滑钉6的受力为最佳的状态，能够承受车辆的自重，本身不易损坏。
本发明在具体的实施中，使用双向气压减速阀7来为气缸4供应高压气，双向气压减速阀起到的是控制气流流向的作用。气缸4的进气口和出气口均通过双向气压减速阀7与高压气源连通。在此，使用的双向气压减速阀7为微电脑控制式气阀，双向气压减速阀7的电源线与外接电源连接，双向气压减速阀7的控制开关设置在驾驶室内。通过控制开关14控制双向气压减速阀7的动作，实现对于气缸4内的活塞杆的伸缩控制。或者，可以选用能够进行远程无线控制的双向气压减速阀，通过遥控进行控制。外接电源13可以使用车载电源，或者配置蓄电池或者干电池组。双向气压减速阀7设置回气口15同外部连通。如图3所示。
本发明中需要使用高压气源来控制气动伸缩防滑钉装置的动作，可以设置高压气泵，或者利用车轮内胎3内的高压气体。可以直接将双向气压减速阀7设置在内胎3的高压胎腔内，此时适合使用能够远程无线控制的双向气压减速阀。或者可以将双向气压减速阀7的进气口同内胎3的打气口16连通。
如1图所示，将气缸4镶嵌在外胎2内。在外胎2的表面设置用于安装孔，用于将气缸4镶嵌进去。轮胎2表面的安装孔的开口处即为出钉口，防滑钉从出钉口伸出。将出钉口设置为开口朝内的喇叭形。防滑钉6只要有很少的一段伸出并凸出外胎2的表面即可起到防滑的作用。
本发明在具体的实施应用中，需要在外胎2内设置多个气动伸缩防滑钉装置，为了保证气动伸缩防滑钉装置的气缸4能够在外胎2内始终处于 沿车轮直径的良好状态，通常在外胎2内设置钢丝束网8-1，类似于在外胎2夹层内设置环形的钢丝束网8-1，气缸4向外穿过钢丝束网8-1。可以设置两个同心的钢丝束网8-1，使气缸4能够良好地固定在外胎2内，保持良好的工作形态。如果是用于载重较大的汽车或者货车需要在气缸4的最内端设置钢丝束网8-1。另外一种结构为，设置两个同心且贴合在一起的钢丝束网8，在两个钢丝束网8-1之间设置固定板12，气缸4穿过固定板12。此外，通常还在去外胎2和内胎3之间镶嵌设置金属销铰链式钢板8-2。钢丝束网8-1和金属销铰链式钢板8-2所起的作用相同，可以相互替换。
如图1所示，进一步的改进为，在防滑钉6的中部表面设置凸台10，在凸台10与气缸4的出口端之间设置弹簧11。气缸4的最内端的外部设置钢丝束网或者金属销铰链式钢板，对气缸4进行支撑。
本发明中的气管一般使用高强度PU气管。
本发明的车轮通过为轮胎设置气动可伸缩式防滑钉装置，能够根据需要启动防滑钉装置，提高车轮的抓地力；在不需使用时，气动可伸缩式防滑钉装置无需拆卸仅需要将防滑钉部分回收即可，不影响车轮行驶的平稳性。
本发明中的可伸缩式防滑钉装置，通过设置气缸和防滑钉同时将气缸通过双向气压减速阀同高压气源连通，能够便于控制活塞杆的伸缩和回收，实现可伸缩式防滑钉装置的工作状态的转换。本发明的车轮使用便捷性好，便于调控。
本发明应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处。综上，本说明书内容不应理解为对本发明的限制。

Claims (10)

  1. 一种防滑气动可伸缩式轮胎，包括轮毂(1)和套装在轮毂(1)上的外胎(2)和内胎(3)，其特征在于：外胎(2)内镶嵌设置若干气动伸缩防滑钉装置；所述气动伸缩防滑钉装置包括镶嵌在外胎(2)内的气缸(4)以及设置在气缸(4)内在气压作用下移动的活塞杆，所述活塞杆包括活塞(5)以及一体成型在活塞(5)一端面的防滑钉(6)，气缸(4)的进气口和出气口通过气管(9)与高压气源连通。
  2. 根据权利要求1所述的一种防滑气动可伸缩式轮胎，其特征在于：气缸(4)镶嵌在外胎(2)内，在轮胎(2)表面设置使防滑钉(6)能够伸出且开口朝内的喇叭形出钉口。
  3. 根据权利要求1所述的一种防滑气动可伸缩式轮胎，其特征在于：气缸(4)的进气口和出气口通过双向气压减速阀(7)与高压气源连通。
  4. 根据权利要求3所述的一种防滑气动可伸缩式轮胎，其特征在于：双向气压减速阀(7)为微电脑控制式气阀，双向气压减速阀(7)的电源线与外接电源连接，双向气压减速阀(7)的控制开关设置在驾驶室内。
  5. 根据权利要求4所述的一种防滑气动可伸缩式轮胎，其特征在于：高压气源为车轮的内胎(3)。
  6. 根据权利要求5所述的一种防滑气动可伸缩式轮胎，其特征在于：双向气压减速阀(7)的直接设置在内胎(3)的高压胎腔内。
  7. 根据权利要求5所述的一种防滑气动可伸缩式轮胎，其特征在于：双向气压减速阀(7)的进气口与内胎(3)的打气口连通。
  8. 根据权利要求1所述的一种防滑气动可伸缩式轮胎，其特征在于：防滑钉(6)中部表面设置凸台(10)，所述凸台(10)与气缸(4)的出 口端之间设置弹簧(11)。
  9. 根据权利要求1-7任一项所述的一种设置气动可伸缩式防滑钉的车轮，其特征在于：外胎(2)内设置用于保持气缸(4)固定形态的钢丝束网(8-1)或金属销铰链式钢板(8-2)。
  10. 根据权利要求1-7任一项所述的一种设置气动可伸缩式防滑钉的车轮，其特征在于：防滑钉(6)沿车轮的直径方向伸出。
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