WO2017193547A1 - 一种汽车爆胎应急安全装置 - Google Patents

一种汽车爆胎应急安全装置 Download PDF

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Publication number
WO2017193547A1
WO2017193547A1 PCT/CN2016/103361 CN2016103361W WO2017193547A1 WO 2017193547 A1 WO2017193547 A1 WO 2017193547A1 CN 2016103361 W CN2016103361 W CN 2016103361W WO 2017193547 A1 WO2017193547 A1 WO 2017193547A1
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WO
WIPO (PCT)
Prior art keywords
safety device
automobile tire
emergency safety
ring
tire burst
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PCT/CN2016/103361
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English (en)
French (fr)
Inventor
王�忠
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泰斯福德（北京）科技发展有限公司
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Publication of WO2017193547A1 publication Critical patent/WO2017193547A1/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
    • B60C17/00—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor
    • B60C17/04—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor utilising additional non-inflatable supports which become load-supporting in emergency

Definitions

  • the present disclosure relates generally to vehicle tires, and more particularly to puncture safety devices, and more particularly to automotive puncture emergency safety devices.
  • the puncture safety device is a supporting device mounted on the inner wheel rim of the tire. It can effectively support the hub without contact with the ground after the tire bursts, and continue to travel a certain distance according to the abortion, thereby maintaining the safety of the vehicle.
  • the rim size and shape of the wheel hub are different.
  • the existing puncture safety devices require a variety of specifications, poor versatility, and inconvenient installation and installation, resulting in low assembly efficiency and the like.
  • the puncture safety device needs to be mounted on a smooth rim of the hub, and the reliability after installation is critical to product performance.
  • the technical solution of the present invention may be: an automobile tire burst emergency safety device, comprising: a support ring, the support ring is used for clamping on the rim, and a plurality of grooves are distributed on the inner ring surface of the support ring And a plurality of pillow blocks, the rear portion of each of the pillow blocks being receivable and detachably disposed within the recess.
  • the rear portion of the pillow block is provided with a positioning pin, and the positioning pin is inserted in the corresponding groove in the axial direction of the hub.
  • the insertion depth of the positioning pin in the axial direction of the hub is adjustable.
  • one of the top wall of the recess and the positioning pin is provided with a plurality of projections in the axial direction of the hub, and the other is provided in the axial direction of the hub.
  • the recess and the positioning pin are connected by a snap between the protrusion and the recess.
  • the support ring and the positioning pin are fastened by a radially disposed fastener.
  • a front end surface of the support ring is provided with a positioning hole at a position on both sides of each of the grooves, and a positioning post is disposed at a position corresponding to the positioning hole of the pillow block, The positioning post is inserted into the positioning hole.
  • the rear portion of the pillow block is coupled to the top wall of the recess and is rotatable within the plane of the top wall of the recess.
  • the rear portion of the pillow block is rotatably coupled to the top wall of the groove by a rotating column disposed in a radial direction of the hub and rotatably coupled to the top wall of the groove.
  • the spin column includes a sub-rotating column circumferentially distributed and a main rotating column at the center of the circumference.
  • the rear portion of the pillow block is rotatably coupled to the top wall of the recess.
  • the front portion of the pillow block is provided with a flexible member.
  • the support ring comprises a first ring body and a second ring body which are semicircular, and the two ends of the first ring body and the second ring body are detachably connected to each other.
  • the support ring is composed of a plurality of support blocks, each adjacent one of the support blocks is movably connected, and the groove is disposed on the support block.
  • the support ring comprises a first ring body and a second ring body which are semicircular, the first ring body and the second ring body are each composed of a plurality of the support blocks, the first Both ends of the ring body and the second ring body are detachably connected to each other.
  • a guard ring is disposed on an outer ring surface of the support ring.
  • the puncture safety device of the present invention is simple in assembly, more reliable and versatile, and at the same time, reduces production and manufacturing costs.
  • FIG. 1 is a schematic structural view of an automobile tire burst emergency safety device of the present invention
  • FIG. 2 is a schematic view showing a first assembly form of a support ring and a pillow block of the automobile tire burst emergency safety device of the present invention
  • Figure 3 is a side view of the first assembly form of the support ring and the pillow block of the automobile tire burst emergency safety device of the present invention
  • Figure 4 is a side view of the second assembly form of the support ring and the pillow block of the automobile tire burst emergency safety device of the present invention
  • Figure 5 is a plan view showing a third assembly form of the support ring and the pillow block of the automobile tire burst emergency safety device of the present invention.
  • Figure 6 is a schematic view showing the structure of a first type of support ring of the automobile tire burst emergency safety device of the present invention
  • Figure 7 is a schematic illustration of a second support ring structure of an automotive tire burst emergency safety device of the present invention.
  • FIG. 1 is the front side
  • the left side is the rear side
  • the direction in which the vertical paper faces inward is the inner side
  • the direction in which the vertical paper faces outward is the outer side.
  • an automobile tire burst emergency safety device includes: a support ring 1 for clamping on a rim, and a groove 3 distributed on an inner ring surface of the support ring 1 (as shown in the figure) 6 and shown in Fig. 7), the arrangement of the grooves 3 also allows the curvature of the support ring 1 to be fixed within a certain range to be finely adjusted to accommodate the hub 5. Thereby, the reliability of assembly between the support ring 1 and the hub 5 is improved.
  • the support ring 1 is composed of a plurality of support blocks 13, each of which is movably connected between the support blocks 13, and the groove 3 is disposed on the support block 13.
  • the support ring 1 formed integrally by the movable connection between the plurality of support blocks 13 is more convenient for the support ring 1 to be bent into different arcs to fit the arc of the wheel groove 15, thereby improving the cooperation between the support ring 1 and the wheel groove 15. reliability.
  • the above-described automobile tire burst emergency safety device further includes a plurality of pillow blocks 2, and the rear portion of each of the pillow blocks 2 can be received in the recess 3.
  • the pillow block 2 can be detachably disposed in each of the grooves 3.
  • the pillow block 2 can also be disposed in several of the grooves 3, and the assembly is simple and convenient for operation, and the structure of the support ring can be reinforced. Improve structural reliability.
  • a protective ring 6 is disposed on the outer ring surface of the support ring 1 to protect the support ring 1 and the pillow block 2, and prolong the service life of the support ring 1 and the pillow block 2.
  • the rear portion of the pillow block 2 may be provided with a positioning pin 4, and the positioning pin 4 is along the axis of the hub 5 The direction is inserted into the recess 3.
  • the positioning pins 4 are inserted in the axial direction of the hub to facilitate assembly.
  • the insertion depth of the positioning pin 4 in the axial direction of the hub is adjustable in the groove 3. Since the positioning pin 4 and the groove 3 are adjustably connected in the axial direction of the hub 5, the pillow block 2 can be appropriately adjusted in the axial direction of the hub 5 so as to accommodate the wheel grooves 15 of different widths. Thereby, the puncture safety device of the invention can adapt to the rims of different widths, thereby improving the versatility of the puncture safety device. In this way, compared with the prior art, it is no longer necessary to develop a plurality of model specifications and the corresponding molds, thereby reducing the cost of production and manufacturing.
  • a plurality of protrusions 7 may be provided on the top wall of the recess 3, and on the pillow block 2
  • a plurality of recesses 8 corresponding to the protrusions 7 are provided, and a plurality of recesses 8 may be provided on the top wall of the recess 3, and a plurality of protrusions 7 are provided on the pillow block 2, between the protrusions 7 and the recesses 8.
  • the engagement is made such that the groove 3 and the positioning pin 4 are adjusted to achieve multi-gear adjustment of the pillow block 2 in the axial direction of the hub 5.
  • the positioning pin 4 and the support ring 1 are engaged with the recess 8 through the protrusion 7; at this time, the fastening between the support ring 1 and the positioning pin 4 can be radially provided.
  • the member 9 passes through the support ring 1 and the positioning pin 4 in sequence, thereby firmly fixing the support ring 1 and the positioning pin 4, thereby improving the overall structural reliability.
  • the fastener 9 herein may be a bolt fastener 9, but is not limited thereto, and the fastener 9 which can function as a fastening in the prior art can be applied thereto.
  • a front end surface of the support ring 1 is provided with positioning holes 11 at positions on both sides of each of the grooves 2, and the pillow block 2 is positioned at a position corresponding to the positioning holes 11
  • the post 12 is inserted into the positioning hole 11 .
  • the insertion of the positioning pin 4 into the groove 3 can be guided, so that the positioning pin 4 can be accurately and stably inserted into the groove 3, thereby improving
  • the assembly efficiency of the pillow block also improves the reliability of the assembly. Still further preferred embodiments, referring to FIG.
  • the rear portion of the pillow block 2 may be coupled to the top wall of the recess 3, and the top surface of the rear portion of the pillow block 2 It is in contact with the top wall of the groove 3 and is rotatable along the plane of the top wall of the groove 3, so that the rear portion of the pillow block 2 forms a different width between the rotation and the front portion, realizing the pillow block 2 It is adjustable along the axial direction of the hub 5.
  • the puncture safety device of the invention can adapt to the rims of different widths, thereby improving the versatility of the puncture safety device. In this way, compared with the prior art, it is no longer necessary to develop a plurality of model specifications and the corresponding molds, thereby reducing the cost of production and manufacturing.
  • the rotatable connection between the rear portion of the pillow block and the top wall of the recess 3 can be achieved by providing and rotating a rotating column attached to the top wall of the recess 3 in the radial direction of the hub.
  • the spin column can include a main spin column 16 for controlling the rotation of the positioning pins. It is also possible to include a circumferentially distributed secondary rotating column 17 for controlling the range of rotation and rotational stability of the positioning pins.
  • the front portion of the pillow block 2 is provided with a flexible member 10.
  • the front portion of the pillow block 2 can be angularly deformed in the axial direction, that is, the flexible member 10 can be tilted upwardly into the wider wheel groove 15, or the flexible member 10 can be tilted downwardly.
  • the narrower wheel groove 15 an adjustment of the pillow block 2 in the axial direction of the hub 5 is achieved.
  • the puncture safety device of the invention can adapt to the rims of different widths, thereby improving the versatility of the puncture safety device. In this way, compared with the prior art, it is no longer necessary to develop a plurality of model specifications and the corresponding molds, thereby reducing the cost of production and manufacturing.
  • the support ring includes a first ring body 14 and a second ring body in a semicircular shape, and the first ring body 14 And the two ends of the second ring body are detachably connected to each other. Since the support ring 1 is mostly made of a relatively rigid material, the semicircular first ring body 14 and the second ring body are more convenient for the support ring 1 to be bent into different arcs, and then pass through the first ring body 14 and the second ring. The rings are connected to each other to form an integral support ring 1 so as to conform to the curvature of the wheel groove 15, thereby improving the reliability of the cooperation between the support ring 1 and the wheel groove 15.
  • the support ring 1 includes a first ring body and a second ring body which are semicircular, the first ring body and Each of the second ring bodies is composed of a plurality of the support blocks 13 , and both ends of the first ring body and the second ring body are detachably connected to each other.
  • the semicircular first ring body 14 and the second ring body are more convenient for the support ring 1 to be bent into different arcs, and then the first ring body 14 and the second ring body are connected to each other to form an integral support ring 1 for fitting the wheel.
  • the groove is 15 arcs, thereby improving the reliability of the cooperation between the support ring 1 and the wheel groove 15.

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

Abstract

一种汽车爆胎应急安全装置，包括：支撑环（1），所述支撑环（1）用于卡箍在轮辋上，所述支撑环（1）的内环面上分布有的多个凹槽（3），以及多个枕块（2），每个所述枕块（2）的后部能够被接收并可拆卸地设置在所述凹槽（3）内。该爆胎安全装置装配简单，可靠性和通用性强，降低了生产和制造的成本。

Description

一种汽车爆胎应急安全装置 技术领域
本公开一般涉及车辆轮胎，具体涉及爆胎安全装置，尤其涉及汽车爆胎应急安全装置。
背景技术
车辆在爆胎后，轮胎受到拖拽会迅速脱离轮毂卷入轮槽，轮胎与轮毂发生分离。金属轮毂在失压后因丧失支撑力而下沉直接与路面接触，这时车轮摩擦系数降低，丧失依靠轮胎向地面传递驱动力、牵引力、转向力及制动力等功能，从而导致车辆"雪崩"式失控，产生严重的侧滑、翻车事故。
而爆胎安全装置是一种安装在轮胎内部轮毂轮辋上的支撑装置。其可以在车辆爆胎后能有效支撑轮毂不与地面发生接触，依托瘪胎继续行驶一定距离，从而保持车辆安全。
但是，由于汽车轮毂为配合不同规格的轮胎，以及自身材质制造工艺的差别，造成轮毂的轮辋尺寸，形状各异。现有的爆胎安全装置所需对应的规格种类繁多，通用性差，而且安装固定不方便，造成了装配效率低等问题。另外，爆胎安全装置需要安装在轮毂光滑的轮辋上，安装后的可靠性对产品性能至关重要。
发明内容
鉴于现有技术中的上述缺陷或不足，期望提供一种汽车爆胎应急安全装置。
本发明的技术方案可以是：一种汽车爆胎应急安全装置，包括：支撑环，所述支撑环用于卡箍在轮辋上，所述支撑环的内环面上分布有的多个凹槽；和多个枕块，每个所述枕块的后部能够被接收并可拆卸设置在所述凹槽内。
优选地，所述枕块的后部设有定位插脚，所述定位插脚沿所述轮毂的轴向方向插设在相应的所述凹槽内。
进一步优选地，所述定位插脚沿轮毂的轴向方向在所述凹槽内的***深度是可调节的。
进一步优选地，所述凹槽的顶壁和所述定位插脚中的一者在沿轮毂的轴向方向上设有多个凸起，而另一者在沿轮毂的轴向方向上设有多个凹陷，所述凹槽和定位插脚通过所述凸起与所述凹陷之间的卡接而连接。
进一步优选地，所述支撑环与所述定位插脚之间通过径向设置的紧固件紧固。
进一步优选地，所述支撑环的前端面在位于每个所述凹槽的两侧位置处均设有定位孔，所述枕块与所述定位孔对应的位置处设有定位柱，所述定位柱与所述定位孔插接。
优选地，所述枕块的后部连接在所述凹槽的顶壁上，并可沿着所述凹槽的顶壁所在面内旋转。
进一步优选地，所述枕块的后部通过沿轮毂的径向设置并旋转连接于所述凹槽顶壁上的旋转柱与所述凹槽的顶壁可旋转连接。
进一步优选地，所述旋转柱包括呈圆周分布副旋转柱和位于圆周中心的主旋转柱。所述枕块的后部可旋转连接在所述凹槽的顶壁上。
优选地，所述枕块的前部设有柔性部件。
优选地，所述支撑环包括呈半圆形的第一环体和第二环体，所述第一环体和所述第二环体的两端部相互可拆卸连接。
优选地，所述支撑环由多个支撑块构成，每个相邻的所述支撑块之间活动连接，所述凹槽设置在所述支撑块上。
进一步优选地，所述支撑环包括呈半圆形的第一环体和第二环体，所述第一环体和所述第二环体均由多个所述支撑块构成，所述第一环体和所述第二环体的两端部相互可拆卸连接。
优选地，所述支撑环的外环面上设有保护环。
本发明的爆胎安全装置配装简单，可靠性和通用性更强，同时，降低了生产和制造的成本。
附图说明
通过阅读参照以下附图所作的对非限制性实施例所作的详细描述，本申请的其它特征、目的和优点将会变得更明显：
图1是本发明的汽车爆胎应急安全装置的结构示意图；
图2是本发明的汽车爆胎应急安全装置的支撑环与枕块第一种装配形式的示意图；
图3是本发明的汽车爆胎应急安全装置的支撑环与枕块第一种装配形式的侧视图；
图4是本发明的汽车爆胎应急安全装置的支撑环与枕块第二种装配形式的侧视图；
图5是本发明的汽车爆胎应急安全装置的支撑环与枕块第三种装配形式的俯视图；
图6是本发明的汽车爆胎应急安全装置的第一种支撑环结构的示意图；以及
图7是本发明的汽车爆胎应急安全装置的第二种支撑环结构的示意图。
图号说明
1…支撑环  2…枕块  3…凹槽  4…定位插脚  5…轮毂  6…保护环  7…凸起  8…凹陷  9…紧固件  10…柔性部件  11…定位孔  12…定位柱  13…支撑块  14…第一环体  15…轮槽  16…主旋转柱  17…副旋转柱
具体实施方式
下面结合附图和实施例对本申请作进一步的详细说明。可以理解的是，此处所描述的具体实施例仅仅用于解释相关发明，而非对该发明的限定。另外还需要说明的是，为了便于描述，附图中仅示出了与发明相关的部分。
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本 申请。其中，以图1中的右侧为前方，左侧为后方，垂直纸面向内的方向为内侧，垂直纸面向外的方向为外侧来进行描述。
请参考图1，汽车爆胎应急安全装置，包括：支撑环1，所述支撑环1用于卡箍在轮辋上，所述支撑环1的内环面上分布有的凹槽3(如图6和图7中所示)，凹槽3的设置也使得支撑环1的弧度固定在一定范围内可以微调，以适应轮毂5。从而，提高了支撑环1与轮毂5之间装配的可靠性。
在这里，请参照图7，所述支撑环1由多个支撑块13构成，每个相邻的所述支撑块13之间活动连接，所述凹槽3设置在所述支撑块13上。通过多个支撑块13之间活动连接而构成整体的支撑环1，更便于支撑环1弯曲成不同弧度，以贴合轮槽15弧度，从而提高了支撑环1与轮槽15之间配合的可靠性。上述的汽车爆胎应急安全装置，还包括：多个枕块2，每个所述枕块2的后部能够被接收在凹槽3内。其中，枕块2可以可拆卸地设置在各个凹槽3内，枕块2也可以设置在其中的几个凹槽3内，装配简单，便于操作，可以对支撑环形成结构补强作用，以提高结构可靠性。
进一步地，所述支撑环1的外环面上设有保护环6，对支撑环1和枕块2起到了保护作用，延长了支撑环1和枕块2的使用寿命。
进一步优选地实施例，请参考图2和图3，上述的汽车爆胎应急安全装置中，所述枕块2的后部可以设置定位插脚4，所述定位插脚4沿所述轮毂5的轴向方向插设在所述凹槽3内。定位插脚4沿轮毂轴向方向***便于装配。
进一步地，所述定位插脚4沿轮毂的轴向方向在所述凹槽3内的***深度是可调节的。由于定位插脚4与凹槽3沿轮毂5的轴向方向可调节连接，可以适当沿轮毂5的轴向方向上调整枕块2，以使得适应不同宽度的轮槽15。从而使得本发明的爆胎安全装置能够适应不同宽度的轮辋，进而提高了爆胎安全装置的通用性。这样，与现有技术相比，不再需要开发多种型号规格产品以及其所对应的模具，降低了生产和制造的成本。
进一步地，可以在凹槽3的顶壁设置多个凸起7，而在枕块2上 设置与凸起7对应的多个凹陷8，也可以在凹槽3的顶壁设置多个凹陷8，而在枕块2上设置多个凸起7，通过凸起7与凹陷8之间的卡接，使得凹槽3和所述定位插脚4，以实现枕块2沿轮毂5的轴向方向上的多档位调节。
进一步地，当枕块2完成调整后，定位插脚4与支撑环1通过凸起7与凹陷8卡接；此时，可以通过支撑环1与所述定位插脚4之间径向设置的紧固件9，依次穿过支撑环1和定位插脚4，从而将支撑环1与定位插脚4牢靠固定，提高了整体的结构可靠性。此处的紧固件9可以是螺栓紧固件9，但并不仅仅限于此，现有技术中可以起到紧固作用的紧固件9均可以应用于此。
进一步地，所述支撑环1的前端面在位于每个所述凹槽2的两侧位置处均设有定位孔11，所述枕块2与所述定位孔11对应的位置处设有定位柱12，所述定位柱12与所述定位孔11插接。通过定位柱12与定位孔11之间的插接配合，可以对定位插脚4向凹槽3的***起到导向作用，从而使得定位插脚4能够准确并且稳定的***到凹槽3内，进而提高了枕块的装配效率，也提高了装配的可靠性。再进一步优选地实施例，请参照图5，在上述汽车爆胎应急安全装置中，枕块2的后部可以连接在所述凹槽3的顶壁上，枕块2的后部的顶面与凹槽3的顶壁接触，并可沿着所述凹槽3的顶壁所在面内旋转，使得枕块2的后部在旋转中与前部之间形成不同的宽度，实现枕块2沿轮毂5的轴向方向上的可调节。从而使得本发明的爆胎安全装置能够适应不同宽度的轮辋，进而提高了爆胎安全装置的通用性。这样，与现有技术相比，不再需要开发多种型号规格产品以及其所对应的模具，降低了生产和制造的成本。
进一步地，枕块的后部和凹槽3的顶壁之间的可旋转连接可以通过沿轮毂的径向设置并旋转连接于所述凹槽3的顶壁上的旋转柱来实现。
进一步地，旋转柱可以包括主旋转柱16，用来控制定位插脚的旋转。也可以包括呈圆周分布副旋转柱17，用来控制定位插脚的旋转范围和旋转平稳性。
更进一步优选地实施例，请参照图4，在上述汽车爆胎应急安全装置中，所述枕块2的前部设有柔性部件10。通过设置柔性部件10，枕块2的前部可以在轴向上实现角度变形，即可以将柔性部件10角度向上倾斜挤在较宽的轮槽15内，或者将柔性部件10角度向下倾斜挤在较窄的轮槽15内，从而实现枕块2沿轮毂5的轴向方向上的可调节。从而使得本发明的爆胎安全装置能够适应不同宽度的轮辋，进而提高了爆胎安全装置的通用性。这样，与现有技术相比，不再需要开发多种型号规格产品以及其所对应的模具，降低了生产和制造的成本。
上述技术方案中，通过支撑环与枕块之间的配合，还保证了在爆胎时，轮胎可以保持附着在轮毂5上一段时间，避免了车辆"雪崩"式失控，产生严重的侧滑和翻车等事故，提高了车辆行驶的安全系数。
更进一步优选地实施例，请参照图6，在上述汽车爆胎应急安全装置中，所述支撑环包括呈半圆形的第一环体14和第二环体，所述第一环体14和所述第二环体的两端部相互可拆卸连接。由于支撑环1多为刚性较强的材料制成，这样，半圆形状的第一环体14和第二环体，更便于支撑环1弯曲成不同弧度，再通过第一环体14和第二环体相互连接而形成整体的支撑环1，以便贴合轮槽15弧度，从而提高了支撑环1与轮槽15之间配合的可靠性。
更进一步优选地实施例，请参照图7，在上述汽车爆胎应急安全装置中，所述支撑环1包括呈半圆形的第一环体和第二环体，所述第一环体和所述第二环体均由多个所述支撑块13构成，所述第一环体和所述第二环体的两端部相互可拆卸连接。半圆形状的第一环体14和第二环体，更便于支撑环1弯曲成不同弧度，再通过第一环体14和第二环体相互连接而形成整体的支撑环1，以贴合轮槽15弧度，从而提高了支撑环1与轮槽15之间配合的可靠性。
应该注意的是，本发明并不仅仅限于上述某一实施例中的技术方案，同时也包括上述各个实施例之间组合和拆分出的技术方案。
以上描述仅为本申请的较佳实施例以及对所运用技术原理的说明。本领域技术人员应当理解，本申请中所涉及的发明范围，并不限于上述技术特征的特定组合而成的技术方案，同时也应涵盖在不脱离 所述发明构思的情况下，由上述技术特征或其等同特征进行任意组合而形成的其它技术方案。例如上述特征与本申请中公开的(但不限于)具有类似功能的技术特征进行互相替换而形成的技术方案。

Claims (14)

  1. 一种汽车爆胎应急安全装置，包括：
    支撑环，所述支撑环用于卡箍在轮毂的轮槽上，所述支撑环的内环面上分布有的多个凹槽；和
    多个枕块，每个所述枕块的后部能够被接收并可拆卸地设置在所述凹槽内。
  2. 根据权利要求1所述的汽车爆胎应急安全装置，其特征在于：所述枕块的后部设有定位插脚，所述定位插脚沿所述轮毂的轴向方向***相应的所述凹槽内。
  3. 根据权利要求2所述的汽车爆胎应急安全装置，其特征在于：所述定位插脚沿轮毂的轴向方向在所述凹槽内的***深度是可调节的。
  4. 根据权利要求3所述的汽车爆胎应急安全装置，其特征在于：所述凹槽的顶壁和所述定位插脚中的一者在沿轮毂的轴向方向上设有多个凸起，而另一者在沿轮毂的轴向方向上设有多个凹陷，所述凹槽和定位插脚通过所述凸起与所述凹陷之间的卡接而连接。
  5. 根据权利要求4所述的汽车爆胎应急安全装置，其特征在于：所述支撑环与所述定位插脚之间通过径向设置的紧固件紧固。
  6. 根据权利要求5所述的汽车爆胎应急安全装置，其特征在于：所述支撑环的前端面在位于每个所述凹槽的两侧位置处均设有定位孔，所述枕块与所述定位孔对应的位置处设有定位柱，所述定位柱与所述定位孔插接。
  7. 根据权利要求1所述的汽车爆胎应急安全装置，其特征在于：所述枕块的后部连接在所述凹槽的顶壁上，并可沿着所述凹槽的顶壁所在面内旋转。
  8. 根据权利要求7所述的汽车爆胎应急安全装置，其特征在于：所述枕块的后部通过沿轮毂的径向设置并旋转连接于所述凹槽顶壁上的旋转柱与所述凹槽的顶壁可旋转连接。
  9. 根据权利要求8所述的汽车爆胎应急安全装置，其特征在于：所述旋转柱包括呈圆周分布副旋转柱和位于圆周中心的主旋转柱。
  10. 根据权利要求1-9任一项权利要求所述的汽车爆胎应急安全 装置，其特征在于：所述枕块的前部设有柔性部件。
  11. 根据权利要求1-9任一项权利要求所述的汽车爆胎应急安全装置，其特征在于：所述支撑环包括呈半圆形的第一环体和第二环体，所述第一环体和所述第二环体的两端部相互可拆卸地连接。
  12. 根据权利要求1-9任一项权利要求所述的汽车爆胎应急安全装置，其特征在于：所述支撑环由多个支撑块构成，每个相邻的所述支撑块之间活动连接，所述凹槽设置在所述支撑块上。
  13. 根据权利要求12所述的汽车爆胎应急安全装置，其特征在于：所述支撑环包括呈半圆形的第一环体和第二环体，所述第一环体和所述第二环体均由多个所述支撑块构成，所述第一环体和所述第二环体的两端部相互可拆卸地连接。
  14. 根据权利要求1-9任一项权利要求所述的汽车爆胎应急安全装置，其特征在于：所述支撑环的外环面上设有保护环。
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