WO2012139423A1 - 一种汽车用真空胎爆胎除险专用胎 - Google Patents

一种汽车用真空胎爆胎除险专用胎 Download PDF

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Publication number
WO2012139423A1
WO2012139423A1 PCT/CN2012/000492 CN2012000492W WO2012139423A1 WO 2012139423 A1 WO2012139423 A1 WO 2012139423A1 CN 2012000492 W CN2012000492 W CN 2012000492W WO 2012139423 A1 WO2012139423 A1 WO 2012139423A1
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Prior art keywords
tire
special
vacuum
carcass
deburring
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PCT/CN2012/000492
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English (en)
French (fr)
Inventor
赵东明
Original Assignee
Zhao Dongming
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Publication date
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Publication of WO2012139423A1 publication Critical patent/WO2012139423A1/zh

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Classifications

    • 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
    • B60C17/00—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor
    • B60C17/01—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor utilising additional inflatable supports which become load-supporting in emergency
    • B60C17/02—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor utilising additional inflatable supports which become load-supporting in emergency inflated or expanded in emergency only

Definitions

  • the invention relates to a vacuum bursting device for automobile, in particular to a special tire for vacuum tire blasting for automobile.
  • CN 1843783 A disclosed explosion-proof double tire. He sets up a tire in a normal vacuum tire, and each tire has its own independent inlet passage and valve.
  • a circular or circular gas storage tank concentric with the hub is arranged in the hub, the air pressure in the gas storage tank is higher than the air pressure during the normal running of the tire, and the pressure system opens between the gas storage tank and the inner tire when the tire is blown.
  • the valve the internal air pressure reaches the normal running air pressure, and the distance between the axle and the ground is the same as when driving normally. It is not difficult to see that the mechanism is complicated due to the setting of the gas tank, and the installation is troublesome. When a puncture occurs instantaneously, it is difficult to complete the inflation process in a short time, and after a long-term storage of the gas storage tank, it is difficult to ensure the pressure inside, which makes the puncture unsafe.
  • the technical problem to be solved by the present invention is to provide a special tire which is simple in structure and convenient to install, and makes the vacuum tire of the automobile use a tire tire to become more reliable and more practical.
  • the special tire is composed of a completely closed carcass and a check valve mounted on the carcass, and the special tire carcass has a change in its shape under the action of the tire pressure.
  • the expandable tire shape, the fully expanded carcass size and shape correspond to the size and shape of the vacuum tire cavity.
  • the special tire carcass and the check valve mounted on the carcass are all loaded into the vacuum tire during installation. Inside the cavity, but not filling the entire vacuum tire cavity, the special tire is statically matched with the vacuum tire and the hub.
  • the gas entering the inner cavity of the vacuum tire enters the special inner cavity from the check valve. After the inflation is completed, the air pressure in the inner cavity of the special tire is consistent with the air pressure in the inner cavity of the vacuum tire, so in a normal situation
  • the special tire is not subjected to internal pressure, and the special tire retains the original shape.
  • the vacuum tire suddenly bursts into pressure, the gas in the inner cavity of the special tire pushes the check valve spool to seal the gas leakage.
  • the special tire is quickly expanded by the internal pressure to fill the entire vacuum tire cavity, thus preventing the vacuum tire. Deformation, it can be seen that such a way of removing danger is safer and more reliable.
  • the cross-section of the special tire carcass which can be expanded is preferably a "concave" shape, and a plurality of small pleats which are further stretched and stretched are provided at the depression.
  • This tread structure is simple and low in cost, and thus more practical.
  • the check valve installed in the carcass may be composed of a valve body, a cylindrical valve body, a valve seat and a gasket.
  • the cylindrical valve core is symmetrically disposed on the two sides of the check valve at the outlet end of the check valve, and the guide groove is placed on the valve.
  • the cylindrical spool can also be provided with a small vent hole along the central axis.
  • the check valve mounted on the carcass can also be composed of a valve body, a square cylindrical valve body, a valve seat, an end cover and a gasket.
  • the valve body is provided with four matching edges of the square cylindrical valve core.
  • the guiding groove, the square cylindrical valve core is also provided with a small vent hole along the central axis.
  • the arrangement of the check valve square cylindrical valve core and the positioning of the guide groove and the valve body guide rail on the cylindrical valve core are to prevent the valve body from rolling in the valve body during running and causing wear.
  • the small vent hole of the spool along the central axis acts as a special tire. After the vacuum tire bursts out, the internal gas can be slowly discharged through the vent hole, so that the special tire can be taken out smoothly; the second is caused by various reasons.
  • the venting hole can balance the internal and external pressure of the special tire, so that the special tire can be kept in the working state at the moment; the third is that when the vacuum tire is stabbed slowly, the gas in the special tire can also be discharged from the vent hole in time to avoid the special tire.
  • the spool vents should be sized to allow sufficient time for the vehicle to enter a safe location after the tire has been blown and to replace the tire.
  • a plurality of parallel strip-shaped U-shaped protrusions are uniformly disposed laterally on the outer surface of the special inner ring, and the length of the protrusion exceeds the contact surface of the outer surface of the special inner ring and the inner side of the vacuum tire bead.
  • the role of the protrusion is to make the static fit between the special tire and the hub and the vacuum tire more firm and avoid the abortion; the second is that the protrusion forms a plurality of ventilating gaps between the contact surfaces, which can make the vacuum tire The gas in the chamber remains convected, thereby ensuring good heat dissipation performance of the vacuum tire.
  • Figure 1 is a cross-sectional view of a specific embodiment of a special tire of the present invention.
  • Figure 2 is an enlarged view of a structural form of the check valve shown in Figure 1.
  • Figure 3 is a side view of the check valve shown in Figure 2.
  • Figure 4 is an enlarged view of another structural form of the check valve shown in Figure 1.
  • Figure 5 is a side view 3 of the check valve shown in Figure 4.
  • the specific structure of the special tire of the present invention is as shown in Fig. 1:
  • the special book tire 1 has a "four" shape which can be expanded, and the carcass 1 K trap is provided with a plurality of small pleats 6 which can be further expanded and contracted, and the size and size of the special tire after full expansion
  • the shape and shape of the inner cavity 15 of the vacuum tire 3 corresponding thereto are corresponding.
  • the check valve 2 is fixedly mounted to the side of the carcass 1 by means of the valve shaft 11 and the nut 12 on the valve seat 9.
  • the check valve 2 mounted on the special tire carcass 1 shown in Figs.
  • a pair of guiding grooves 14 are symmetrically disposed on both sides of the outlet end of the valve.
  • the guiding groove 14 is disposed in a pair of guiding rails 13 disposed at a position corresponding to the valve core 8 inside the valve body 7, and the cylindrical valve core 8 is further disposed along the central axis.
  • a small venting hole 24 is provided.
  • the special tire carcass 1 together with the check valve 2 installed on the carcass 1 is completely loaded into the inner cavity 15 of the vacuum tire 3, but does not fill the inner cavity 15 of the vacuum tire 3, and the special tire accounts for about
  • the check valve 2 on the special tire of the volume of the inner cavity 15 of the vacuum tire 3 is in the same enthalpy as the valve needle 25 on the tire.
  • the special tire relies on the outer surface of the inner ring 16 and the close contact of the hub 4 and the vacuum tire 3 bead 18 inner side 19 to achieve a static fit.
  • the outer surface 17 of the special inner ring 16 is laterally evenly disposed with a plurality of parallel strip-shaped U-shaped protrusions, and the length of the protrusion 5 exceeds the contact surface of the outer surface 17 of the special inner ring 16 and the inner side 19 of the bead 18 of the vacuum tire 3,
  • the special tire forms a gap 20 between the contact faces of the hub 4 and the vacuum tire 3 for convection of the gas in the vacuum tire.
  • the check valve 2 can also adopt the structural form shown in FIG. 4 and FIG. 5: It is composed of a valve body 7, a square cylindrical valve body 22, a valve seat 9, an end cover 21 and a gasket 10, and the inside of the valve body 7 is arranged and squared. Cylindrical valve core 22 four edges The four guiding grooves 23 are matched, and the square cylindrical valve core is also provided with a small vent hole 24 along the central axis.
  • the cross section of the special tire carcass which can be expanded can also have various suitable shapes such as a corrugated shape, a "dumbbell" shape and the like.
  • the number of check valves installed on the carcass can also be two or more.
  • the structure of the check valve can also be used in the form of a swing type, a butterfly type, etc., and the static fit between the special tire and the hub and the vacuum tire. As well as the installation and fixing of the check valve and the special tire carcass, other reasonable forms can be adopted.
  • the material for the special tire carcass can be selected from the ply of the vacuum tire carcass.
  • Expanded stretch pleats are also formed.
  • the small venting opening 24 of the check valve spool along the central axis can also be replaced by a small groove radially disposed on the sealing surface of the check valve spool. Since the groove is not easily blocked by impurities, the groove is used. More reliable.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)
  • Check Valves (AREA)

Description

汽车用真空胎爆胎除险专用胎
技术领域
本发明涉及一种汽车用真空爆胎除险装置， 尤其是涉及一种汽车用真空胎爆 胎除险专用胎。
说
背景技术
经检索汽车用真空胎爆胎出险装置种类很多， 其中最接近的是专利号
明 1
CN 1843783 公开的防爆双轮胎。 他是在普通真空胎内设置一个轮胎， 二轮胎各 自有独立的进气通道和阀门。 在轮毂内设置一书个与轮毂同心的环形或圆形储气 罐， 储气罐内的气压高于轮胎正常行驶时的气压， 外胎爆胎时压力系统打开储 气罐和内部轮胎之间的阀门， 内部气压达到正常行驶气压， 轮轴与地面的距离 和正常行驶时一样。 不难看出由于储气罐的设置使其机构很复杂， 而且安装很 麻烦。 爆胎时瞬间发生， 在很短时间很难完成充气过程， 且储气罐经过长期存 放， 很难保证里面的气压的大小， 使爆胎除险变的很不可靠。
发明内容
本发明要解决的技术问题是提供一种结构简单、 安装方便的专用胎， 使汽 车用真空胎爆胎除险变得更加可靠、 更加实用。
为了解决以上的技术问题， 本发明的技术方案是： 专用胎由一个完全封闭 的胎体和安装在胎体上的止回阀组成， 专用胎胎体具有在胎内压力作用下靠自 身形状的变化能够膨胀的胎形， 完全膨胀后的胎体大小和形状同与之配套的真 空胎内腔的大小和形状相应， 安装时专用胎胎体连同安装在胎体上的止回阀全 部装入真空胎内腔内， 但不充满整个真空胎内腔， 专用胎与真空胎、 轮毂之间 静配合。
当给真空胎充气时， 进入真空胎内腔的气体再从止回阀进入专用胎内腔， 充气完毕后， 专用胎内腔内气压与真空胎内腔内气压一致， 所以在正常的情况
确认本 下， 专用胎并没有受到内压力的作用， 专用胎保持原有胎形。 当真空胎突然爆 胎失压后， 专用胎内腔内的气体推动止回阀阀芯封住气体外泄， 专用胎受胎内 压力的作用瞬间迅速膨胀充满整个真空胎内腔， 这样就防止了真空胎变形， 可 以看出这样的除险方式更安全， 更可靠。
可以膨胀的专用胎胎体横截面优选 "凹" 字形， 且在 陷处设置很多进一 步伸缩的小褶子， 这种胎形结构简单、 成本低， 因而更具实用性。
安装在胎体的止回阀可以由阀体、 圆柱形阀芯、 阀座和密封垫组成， 圆柱 形阀芯在止回阀出口端两边对称设置一对导引槽， 导引槽安放在阀体内侧与阐 芯对应位置设置的一对导引轨道中， 圆柱形阀芯还可以沿中轴线设置一条细小 的通气孔。
安装在胎体上的止回阀也可以由阀体、 方柱形阀芯、 阀座、 端盖和密封垫 组成， 阀体内恻设置与方柱形阀芯 4条边棱相匹配的 4个导引槽， 方柱形阀芯 沿中轴线也设置一条细小的通气孔。
止回阀方柱形阀芯的设置及圆柱形阀芯上导引槽和阀体导引轨道的设置， 是为了防止车辆在行驶过程中阀芯在阀体内滚动而造成磨损。 阀芯沿中轴线设 置的细小通气孔其作用一是专用胎在真空胎爆胎出险后， 内部气体可以通过此 通气孔慢慢排出， 以便能顺利取出专用胎； 二是当由于各种原因引起阀芯动作 时， 通气孔能平衡专用胎内外压力， 使专用胎时刻保持待工作状态； 三是当真 空胎被扎撒慢气时， 专用胎内的气体也能够及时从通气孔排出， 避免专用胎膨 胀， 这样就能及时发现受损的真空胎并及时维修， 同时也能最大限度的减少专 用胎同时被礼的可能。 阀芯通气孔的尺寸大小应能保证车辆在爆胎后有足够的 时间驶入安全地段， 更换轮胎。
作为对专用胎的进一步改进， 在专用胎内圈外表面横向均匀设置若干条相 平行的条形 U形凸起， 凸起长度超过专用胎内圈外表面同真空胎胎圈内侧的接 触面。 凸起的作用一是可以使专用胎与轮毂、 真空胎之间的静配合更加牢固， 避免窜胎； 二是凸起在接触面间形成若干条可以通气的间隙， 可以使真空胎内 腔内的气体保持对流， 从而保证了原因真空胎轮胎良好的散热性能。
附图说明
下面结合附图详细描述本发明的实施方式。
图 1 是本发明专用胎具体实施方式的横截面图。
图 2是图 1所示止回阀的一种结构形式的放大图。
图 3是图 2 所示止回阀的侧视图。
图 4是图 1所示止回阀的另说一种结构形式的放大图。
图 5是图 4所示止回阀的侧视图 3。
具体实施方式
本发明专用胎具体结构如图 1所示： 专用书胎 1呈可以膨胀的 "四" 字形， 胎体 1 K陷处设置有很多可以进一步伸缩的小褶子 6，专用胎完全膨胀后的大小 和形状同与之相配套的真空胎 3内腔 15的大小和形状相应。 止回阀 2依靠阀座 9上的阀兰 11和螺母 12固定安装在胎体 1的侧面。 由图 2、 图 3所示的安装在 专用胎胎体 1上的止回阀 2由阀体 7、 圆柱形阀芯 8、 阀座 9和密封垫 10组成， 圆柱形阀芯 8在止回阀出口端两边对称设置一对导引槽 14，导引槽 14安放在阀 体 7内侧与阀芯 8对应位置设置的一对导引轨道 13中， 圆柱形阀芯 8沿中轴线 还设有一条细小的通气孔 24.安装时专用胎胎体 1连同安装在胎体 1的止回阀 2 全部装入真空胎 3内腔 15内， 但不充满真空胎 3内腔 15 , 专用胎约占真空胎 3 内腔 15容积的 至 专用胎上的止回阀 2同轮胎上的气门针 25处在同一 恻。 专用胎依靠内圈 16外表面 17同轮毂 4和真空胎 3胎圈 18内侧 19的紧密 接触达到静配合。专用胎内圈 16外表面 17横向均匀设置若干条相平行的条状 U 形凸起， 凸起 5长度超过专用胎内圈 16外表面 17同真空胎 3胎圈 18内侧 19 的接触面， 凸起在专用胎与轮毂 4和真空胎 3的接触面间形成若干条可以供真 空胎内气体对流的间隙 20。
止回阀 2还可以采用图 4、图 5所示的结构形式： 由阀体 7、方柱形阀芯 22、 阀座 9、 端盖 21和密封垫 10组成， 阀体 7内侧设置与方柱形阀芯 22四条边棱 相匹配的四个导引槽 23， 方柱形阀芯沿中轴线也设置一条细小的通气孔 24。 当然可以膨胀的专用胎胎体的横截面还可以呈波紋形、 "哑铃" 形等多种适 合的形状。 安装在胎体上的止回阀数量也可以是两个或多个， 止回阀的结构形 式还可以釆用旋启式、 蝶式等， 专用胎与轮毂、 真空胎之间的静配合方式以及 止回阀与专用胎胎体的安装固定方式都可以采用其它合理的形式。
专用胎胎体的制作材料可选用制作真空胎胎体的帘布层， 帘布层所具有的 说
性能适合制作专用胎。
4
制作专用胎时， 可先加工一个同其配套的真空胎内腔大小和形状一样的完 全封闭的胎体， 然后再经过加热定型出所要求的专用胎形状， ffl陷处的进一步 书
膨胀的伸缩褶也就随之形成。
止回阀阀芯沿中轴线设置的细小通气孔 24， 还可以由在止回阀阀芯密封面 上沿径向设置的一条细小凹槽来代替， 由于凹槽不容易被杂质堵塞， 因而使用 中更具可靠性。
装有专用胎的轮胎充气时， 最好分几次充足， 以便使气体能充分进入专用 胎内腔内。

Claims

权 利 5 要 求 书
1. 一种汽车用真空胎爆胎除险专用胎， 由一个完全封闭的胎体（1) 和安装 在胎体 （1) 上的阀门 （2) 组成， 其特征是， 专用胎胎体 （1) 连同安装在胎体 ( 1) 上的阐门 （2) 安装在真空胎 （3) 内腔 （is) 内， 专用胎胎体 （1) 部分 充气， 但不充满整个真空胎 （3) 内腔 （15) ; 专用胎胎体 （1) 具有在胎内压力 作用下靠自身形状的变化能够膨胀的胎形， 完全膨胀后的专用胎大小和形式同 与之相配套的真空胎 （3) 内腔 （15) 的大小和形状相应； 所述专用胎与真空胎 (3) 轮毂 （4) 之间静配合。
2. 按照权利要求 1所述汽车用真空胎爆胎除险专用胎， 其特征是， 所述安 装在胎体 （1) 上的阀门 （2) 采用止回阀。
3. 按照权利要求 1所述汽车用真空胎爆胎除险专用胎， 其特征是， 所述专 用胎胎体 （1) 横截面呈 "凹" 字形。
4. 按照权利要求 3所述汽车用真空胎爆胎除险专用胎， 其特征是， E3陷部 分还设置有很多伸缩褶 （6)。
5. 按照权利要求 1所述汽车用真空胎爆胎除险专用胎， 其特征是， 专用胎 约占真空胎 （3) 内腔 （15) 容积的 ¾¾至 ¾¾。
6. 按照权利要求 1所述汽车用真空胎爆胎除险专用胎， 其特征是， 专用胎 利用专用胎内圈 （16) 外表面 （17) 与轮毂 （4) 及真空胎 （3) 胎圈 （18) 内 侧 ( 19) 的紧密接触达到静配合。
7. 按照权利要求 1所述汽车用真空胎爆胎除险专用胎， 其特征是， 所述专 用胎内圈 （16) 外表面 （17) 横向均匀设置若干条相平行的 U形凸起 （5)， 凸 起（5)长度超过专用胎内圈（16) 的外表面（17) 与真空胎胎圈（18) 内侧 （19) 的接触面， 凸起 （5) 在专用胎与轮毂 （4)、 真空胎 （3) 的接触面间形成若干 条可以供真空胎内气体对流的间隙 （20)。
8. 按照权利要求 2所述汽车用真空胎爆胎除险专用胎， 其特征是， 所述止 回阀 （2) 由阀体 （7)、 圆柱形阀芯 （8)、 阀座 （9)、 密封垫 （10) 组成， 圆柱 形阀芯 （8) 在止回阀的出口端两边对称设置一对导引槽 （14)。 权 利 要 求 书
9. 按照权利要求 8所述汽车用真空胎爆胎除险专用胎，其特征是，阀体（7) 内侧与圆柱形阀芯 （8) 上导引槽 （14) 对应位置设置的一对导引轨道 （13)。
10. 按照权利要求 8所述汽车用真空胎爆胎除险专用胎， 其特征是， 圆柱 形阀芯 （8) 沿中轴线设置一条细小的通气孔 （24)。
11.按照权利要求 2所述汽车用真空胎爆胎除险专用胎， 其特征是， 所述止 回阀 （2) 由阀体（7)、 方柱形阀芯 （22)、 阀座（9)、 端盖 （21) 和 密封垫（10) 组成，阀体（7)内侧设置与方柱形阀芯（22)四条边棱相匹配的四个导引槽（23)。
12. 按照权利要求 11所述汽车用真空胎爆胎除险专用胎， 其特征是， 方柱 形阀芯 （22) 沿中轴线也设置一条细小的通气孔 （24)。
13. 按照权利要求 2所述汽车用真空胎爆胎除险专用胎， 其特征是，所述安 装在胎体 （1) 上的止回阀 （2) 阀芯沿中轴线设置一条细小的通气孔 （24)。
14. 按照权利要求 1或 2所述汽车用真空胎爆胎除险专用胎， 其特征是， 所 述安装在胎体 （1) 上的止回阀 （2) , 安装在专用胎胎体 （1) 的侧面。
PCT/CN2012/000492 2011-04-14 2012-04-12 一种汽车用真空胎爆胎除险专用胎 WO2012139423A1 (zh)

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