CN210553964U - Emergency safety device for tyre burst - Google Patents

Abstract

The utility model discloses an emergent safety device of flat tire, including two support areas, support the coupling assembling of being connected with two and set up the pad pearl on supporting the area, support the area and have let pad pearl male mounting hole is equipped with the protrusion on supporting the area and surrounds the turn-ups of filling up the pearl, and the pad pearl has first terminal surface and second terminal surface, and the first terminal surface setting of filling up the pearl is used for the first anti-skidding structure with the contact of wheel rim. The utility model discloses an emergent safety device blows out surrounds the pad pearl through setting up the turn-ups on the support band, increased with the area of contact who fills up the pearl, can improve the support guard action to filling up the pearl, fill up the pearl and be difficult to cut off and lead to damaging after taking place blowing out, fill up the setting of on the pearl anti-skidding structure simultaneously, increased with rim surface friction, ensured the run-in synchronism who takes place blowing out emergent safety device and wheel after blowing out, ensured the result of use of emergent safety device blows out, the reliability is improved.

Description

Emergency safety device for tyre burst

Technical Field

The utility model belongs to the technical field of the automobile-used tire, specifically speaking, the utility model relates to an emergent safety device blows out.

Background

The car plays bigger and bigger effect in modern life, and the car on the market is mostly the vacuum child, is equipped with the rim groove on its rim that corresponds, makes things convenient for the change and the dismantlement of tire. The vacuum tire under the normal condition, the child intracavity is filled with high-pressure gas for the child lip sticiss on the rim, and tire and rim synchronous operation, tire burst back, the child lip slides in the rim groove after, and the tire very easily breaks away from the rim, and the car after losing the tire has just lost the frictional force on vehicle and ground, makes the car in service lose control, appears sideslipping, turns on one's side, leads to the traffic accident. Therefore, there are tire burst emergency safety devices in the prior art, which are disposed in the well of the wheel and serve to support the tire after it has burst.

The existing tire burst emergency safety device is mainly of a circular ring-shaped structure formed by connecting two support belts through bolts and hooks, wherein the support belts are provided with pad beads used for being in contact with a rim and are support belts made of steel materials.

The pad pearl of current emergent safety device that blows out adopts the steel ball that steel material made, and hardness is too hard, and after taking place to blow out, because huge impact force, the pad pearl can directly contradict and support the area, and rigid contact can cause the loss deformation that supports the area, influences the result of use of product. And the rim surface is the smooth surface, fills up pearl and rim surface contact, and frictional force between the two is less, takes place to blow out the back, can lead to blowing out emergency safety device and rim and child skin contact department to skid, can not guarantee to blow out to take place the back and wheel synchronous operation.

The pad pearl of current emergent safety device that blows out is through protruding direct card in the mounting hole that sets up on the support band, and the contact surface undersize of pad pearl and support band leads to easily pad the pearl after blowing out and receives the tangential force too big to lead to pad the pearl to be cut off easily, and then can lead to the device to become invalid, the reliability is poor.

The tip setting of current emergent safety device of flat tire's support area lets bolt male mounting groove, and the structure asymmetry of mounting groove when leading to construction bolt, needs install from appointed one side of supporting the area, expend time. And the both ends of supporting the area are connected with couple and bolt respectively, and the both ends intensity of supporting the area is more weak, appears warping easily, influences the result of use of product.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a tire burst emergency safety device, the purpose improves the guard action to filling up the pearl, makes to fill up the pearl and can not damage easily, improves the reliability.

In order to realize the purpose, the utility model discloses the technical scheme who takes does: emergent safety device blows out, including two support areas, with two coupling assembling that support area is connected and set up the pad pearl on supporting the area, support the area and have let pad pearl male mounting hole is equipped with the protrusion on supporting the area and surrounds the turn-ups of filling up the pearl, and the pad pearl has first terminal surface and second terminal surface, and the first terminal surface setting of filling up the pearl is used for the first non-slip structure with the contact of wheel rim.

The pad beads are made of special materials and are in interference fit with the supporting bands.

The cushion bead comprises an installation part inserted into the installation hole and a buffering part connected with the installation part, the flanging surrounds the installation part, the buffering part is located between the flanging and the wheel rim, and the first anti-skid structure is arranged on the buffering part.

The buffering portion is a conical structure, the small-diameter end of the buffering portion is connected with the mounting portion, and the first anti-skidding structure is arranged on the end face of the large-diameter end of the buffering portion.

The pad bead further comprises a check ring part which is connected with the buffering part and surrounds the flanging, and the check ring part is positioned between the buffering part and the supporting belt.

The buffering portion with the installation department is cylindrical structure and buffering portion and installation department and is coaxial fixed connection, the turn-ups with the fender circle portion is ring shape structure and retaining ring portion and turn-ups and buffering portion and is coaxial setting.

The second end face of the bead is provided with a second anti-slip structure for contacting with a tire.

The coupling assembling includes the bolt, the tip of supporting the area sets up the mounting groove that lets the bolt insert and the strengthening rib that distributes in the relative both sides of mounting groove.

The length of the reinforcing rib is greater than that of the mounting groove.

The mounting groove is symmetrical structure, and the mounting groove is including the wide slot portion and the narrow groove portion that are linked together, and the width of wide slot portion is greater than the width of narrow groove portion, and the wide slot portion is in run through the rectangular channel that sets up on the supporting band.

And the supporting belt is provided with a preformed hole for mounting the tire pressure monitoring sensor.

The utility model discloses an emergent safety device blows out surrounds the pad pearl through setting up the turn-ups on the holding strip, increased with the area of contact who fills up the pearl, can improve the guard action to filling up the pearl, fill up the pearl and be difficult to cut off and lead to damaging after taking place blowing out, fill up the setting of on the pearl anti-skidding structure simultaneously, increased with rim surface friction, ensured the run-in synchronism who takes place blowing out emergent safety device and wheel after blowing out, ensured the result of use of emergent safety device blows out, the reliability is improved.

Drawings

The description includes the following figures, the contents shown are respectively:

FIG. 1 is a schematic diagram of a flat tire emergency safety device according to an embodiment;

FIG. 2 is a schematic view illustrating a state of use of the emergency safety device in case of a flat tire according to the embodiment;

FIG. 3 is a schematic view of a bead of an embodiment;

FIG. 4 is a schematic diagram of an end face structure of a bead according to an embodiment;

FIG. 5 is a schematic view of a hook according to an embodiment;

FIG. 6 is a schematic structural view of a second embodiment of the emergency safety device for tire burst;

FIG. 7 is a schematic view showing a state of use of the second tire burst emergency safety device according to the embodiment;

FIG. 8 is a schematic view of a bead of the second embodiment;

FIG. 9 is a schematic diagram showing the structure of the end face of a bead according to the second embodiment;

FIG. 10 is a schematic structural view of a support belt;

FIG. 11 is a schematic view of the connection between the support band and the bolt;

FIG. 12 is a schematic view of the assembly of the bolt with the nut and the stop rod;

labeled as: 1. a bolt; 2. a support band; 201. a main body portion; 202. a guide section; 203. a baffle portion; 204. a narrow slot portion; 205. a wide groove part; 206. a guide groove; 207. mounting holes; 208. lightening holes; 209. reserving a hole; 3. padding beads; 301. an installation part; 302. a buffer section; 303. a retainer portion; 304. a second groove; 305. a first groove; 306. a first anti-skid structure; 307. a second anti-skid structure; 4. hooking; 401. a first hanging hole; 402. a second hanging hole; 403. a first contact surface; 404. a second contact surface; 5. a first limit rod; 6. a second limiting rod; 7. a nut; 8. flanging; 9. and (5) reinforcing ribs.

Detailed Description

The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings, for the purpose of helping those skilled in the art to understand more completely, accurately and deeply the conception and technical solution of the present invention, and to facilitate its implementation.

It should be noted that, in the following embodiments, the "first" and "second" do not represent an absolute distinction relationship in structure and/or function, nor represent a sequential execution order, but merely for convenience of description.

Example one

As shown in fig. 1 to 4, the first embodiment provides a tire burst emergency safety device, which includes two support bands 2, a connecting assembly connected to the two support bands 2, and a bead pad 3 disposed on the support bands 2, wherein the support bands 2 have a mounting hole 207 for inserting the bead pad 3, the support bands 2 are provided with flanges 8 protruding and surrounding the bead pad 3, the bead pad 3 has a first end face and a second end face, and the first end face of the bead pad 3 is provided with a first anti-slip structure 306 for contacting with a wheel rim.

Specifically, as shown in fig. 1 to 4 and 10, the support band 2 has a circular arc structure, the radian of the support band 2 is greater than 90 degrees and less than 180 degrees, the support band 2 is made of a steel material, the flange 8 is fixedly connected with the support band 2, and the flange 8 and the support band 2 are integrally formed. The two support bands 2 have the same structure, and the two support bands 2 are connected by a coupling assembly. The pad bead 3 sets up a plurality ofly on supporting band 2, and all pad beads 3 use the axis that supports band 2 as the central line on supporting band 2 along circumference evenly distributed, it is corresponding, the quantity of the mounting hole 207 that sets up on supporting band 2 and turn-ups 8 is the same with the quantity of pad bead 3, each pad bead 3 inserts a mounting hole 207 respectively, the position department of each mounting hole 207 sets up a turn-ups 8 respectively, each turn-ups 8 surrounds a pad bead 3 respectively, turn-ups 8 sets up on the interior disc of the face towards the rim of supporting band 2. The cushion beads 3 are fixedly arranged on the support belt 2, the cushion beads 3 are made of special materials, and the cushion beads 3 are in interference fit with the support belt 2. After the emergency safety device for tire burst is installed on a wheel rim, the cushion beads 3 and the support belt 2 are located in a rim groove of the rim, the cushion beads 3 are clamped between the support belt 2 and the rim, the cushion beads 3 made of special materials cannot cause deformation and damage of the support belt 2, and the using effect of the emergency safety device for tire burst is ensured.

Preferably, the material of the cushion bead 3 is an elastomer material, the cushion bead 3 has a certain amount of expansion and contraction deformation, and after a vehicle has a tire burst, the cushion bead 3 plays a certain role in buffering the support band 2, so that the support band 2 is not directly damaged. The material of filling up pearl 3 is preferred nylon, and when the vehicle took place to blow out, 18 on the support band 2 filled up the even atress of pearl 3, and 3 mechanical strength of the pearl of filling up of nylon material are high, and the pliability is good, has higher compressive strength, can support the follow-up operation of vehicle when blowing out. Through the material of change pad pearl 3, set up turn-ups 8 simultaneously on supporting band 2 and protect pad pearl 3, strengthened pad pearl 3's intensity and stability promptly, support band 2 also is difficult for damaging in addition, has improved the reliability, has ensured the result of use of the emergent safety device of flat tire.

As shown in fig. 1 to 4 and 10, the bead 3 includes a mounting portion 301 inserted into the mounting hole 207 and a cushioning portion 302 connected to the mounting portion 301, the flange 8 surrounds the mounting portion 301, the cushioning portion 302 is located between the flange 8 and the rim of the wheel, and the first anti-skid structure 306 is provided on the cushioning portion 302. The center department of turn-ups 8 is for letting the male centre bore, the centre bore of turn-ups 8 and the mounting hole 207 that supports on the area 2 communicate, the centre bore of turn-ups 8 and the mounting hole 207 that supports on the area 2 are the round hole, the centre bore of turn-ups 8 and the diameter size of the mounting hole 207 that supports on the area 2 are the same and coaxial, turn-ups 8 stretches out (the inboard of supporting area 2 indicates the one side at the axle center place of supporting area 2) towards the inboard of supporting area 2 along supporting area 2 radially, turn-ups 8 presss from both sides between buffer 302 and supporting area 2. Installation department 301 is the cylinder, installation department 301 passes and inserts in the mounting hole 207 behind the centre bore of turn-ups 8, installation department 301 is interference fit with supporting band 2 and turn-ups 8, turn-ups 8 extends along installation department 301's whole circumference in the outside of installation department 301, turn-ups 8 radially provides the supporting role to filling up pearl 3, play the guard action to filling up pearl 3, take place to blow out the back at the vehicle, fill up pearl 3 can not lead to being cut off because of receiving the tangential force too big, fill up pearl 3 and can not damage easily, the reliability is improved.

As shown in fig. 1 to 4 and 10, the buffering portion 302 is a conical structure, the buffering portion 302 is coaxially and fixedly connected with the mounting portion 301, and the buffering portion 302 is a conical structure, so that the strength is ensured, the material is saved, and the weight of the whole product is reduced. Buffering portion 302 has a small diameter end and a big footpath end, the diameter that the diameter of the big footpath end of buffering portion 302 is greater than the diameter of small footpath end, big footpath end and small footpath end are buffering portion 302 relative both ends on the axial, the small footpath end of buffering portion 302 is connected with the one end of installation department 301, the other end of installation department 301 inserts in mounting hole 207, the diameter that the diameter of the small footpath end of buffering portion 302 is greater than the diameter of installation department 301 and is greater than the diameter of the centre bore of turn-ups 8, form the step face between buffering portion 302 and the installation department 301, turn-ups 8 contacts with the terminal surface of the small footpath end of buffering portion 302. The end face of the large-diameter end of the buffer portion 302 is used for contacting with the surface of a wheel rim, the first anti-slip structure 306 is disposed on the end face of the large-diameter end of the buffer portion 302, and the end face of the large-diameter end of the buffer portion 302 is also the first end face of the pad bead 3. The setting of first anti-skidding structure 306 has increased the frictional force between pad pearl 3 and the rim, and the emergent safety device of flat tire after assurance flat tire emergence that can be better rotates with tire and wheel synchronization.

As shown in fig. 1 to 4 and 10, the first end surface and the second end surface of the pad bead 3 are end surfaces of two opposite ends of the pad bead 3 in the axial direction, the first end surface and the second end surface of the pad bead 3 are parallel, and the first end surface of the pad bead 3 is an end surface of the mounting portion 301 that is far from one end of the buffer portion 302. The both ends of the axial of pad pearl 3 are stretched out towards the relative both sides that support the area 2 respectively, the second terminal surface setting of pad pearl 3 is used for the second non-slip structure 307 with the tire contact, the second terminal surface of pad pearl 3 is located the outside that supports area 2 (the outside of supporting area 2 is the one side at tire place), after flat tire takes place, the second terminal surface and the interior disc contact of tire of pad pearl 3, the second non-slip structure 307 that sets up on the second terminal surface of pad pearl 3 has increased the frictional force between pad pearl 3 and the tire, thereby can be better guarantee that flat tire takes place the back emergency safety device that blows out and run with tire and wheel synchronous.

Preferably, the first anti-slip structure 306 is an anti-slip pattern, and the second anti-slip structure 307 is also an anti-slip pattern.

As shown in fig. 1 to 4 and 10, the bead 3 is provided with a first groove 305 and a second groove 304, both the first groove 305 and the second groove 304 are circular grooves, the first groove 305 is a groove formed by extending from the center of a first end face of the bead 3 toward the inside of the bead 3 along the axial direction of the bead 3, the second groove 304 is a groove formed by extending from the center of a second end face of the bead 3 toward the inside of the bead 3 along the axial direction of the bead 3, the first groove 305 and the second groove 304 are coaxially arranged, the depth of the first groove 305 is smaller than that of the second groove 304, and the diameter of the first groove 305 is larger than that of the second groove 304. The first groove 305 and the second groove 304 are arranged to play a role of reducing weight without affecting strength, and on the other hand, because the second groove 304 is arranged at one end of the cushion bead 3 inserted into the mounting hole 207 of the support band 2, when the cushion bead 3 is mounted, the insertion end of the cushion bead 3 can generate a certain shrinkage deformation effect, so that the cushion bead 3 can be conveniently installed in the mounting hole 207, and the assembly efficiency is improved.

As shown in fig. 1 to 4 and 10, the flange 8 has a circular ring structure, the flange 8 and the bead 3 are coaxially disposed, the outer diameter of the flange 8 is smaller than the diameter of the large-diameter end of the buffer portion 302, the mounting hole 207 is a through hole formed in the support band 2 in a penetrating manner, and the flange 8 surrounds the mounting hole 207.

As shown in fig. 1 and 10, a preformed hole 209 for installing the tire pressure monitoring sensor is arranged on the supporting belt, the preformed hole 209 is arranged at one end of the supporting belt and located between two adjacent flanges 8, the preformed hole 209 is a through hole penetrating through the supporting belt and the preformed hole 209 is a round hole.

As shown in fig. 1 to 4 and 10 to 12, the coupling assembly includes a bolt 1 and a hook 4, and the end of the support band 2 is provided with a mounting groove into which the bolt 1 is inserted and reinforcing ribs 9 distributed at opposite sides of the mounting groove. The mounting groove sets up two and two mounting grooves and sets up respectively in the ascending relative both ends of the arc length of supporting the area 2, supports the one end of area 2 and is connected with another one end of supporting area 2 through couple 4, supports the other end of area 2 and passes through bolt 1 and another other end of supporting area 2 and be connected. The end of the support band 2 is a U-shaped hook structure, the support band 2 includes a main body 201, a baffle 203 and a guide 202 connected to the main body 201 and the baffle 203, the main body 201 is a circular arc structure, the axis of the main body 201 is also the axis of the support band 2, the flange 8 and the pad bead 3 are disposed on the main body 201, the mounting hole 207 is a through hole penetrating the main body 201 along the thickness direction of the main body 201, and the mounting hole 207 is located at the middle position of the main body 201 in the width direction (the width direction of the main body 201 is parallel to the axial direction). Guide portion 202 and the ascending end fixed connection of arc length direction of main part 201, guide portion 202 sets up two, two guide portions 202 set up the both ends on the arc length direction of main part 201 respectively, guide portion 202 extends towards the inboard of main part 201, baffle portion 203 is located the inboard of main part 201, the one end and the main part 201 fixed connection of guide portion 202, the other end and the baffle portion 203 fixed connection of guide portion 202, baffle portion 203 and main part 201 are mutual disposition, certain distance has between baffle portion 203 and the main part 201, form and hold couple 4, the space of bolt 1 or nut 7, baffle portion 203 plays limiting displacement, form the U-shaped end structure of support band 2.

As shown in fig. 1 to 4 and 10 to 12, the mounting groove is used for allowing the bolt 1 to pass through during assembly, the mounting groove is arranged on the main body part 201 in a penetrating manner along the thickness direction of the main body part 201, the length of the reinforcing rib 9 is greater than that of the mounting groove, the reinforcing rib 9 is arranged on the main body part 201, the reinforcing rib 9 extends from one end of the main body part 201 connected with the guide part 202 along the arc length direction of the main body part 201 towards the direction away from the guide part 202, the first end of the reinforcing rib 9 is located at the guide part 202, the second end of the reinforcing rib 9 is close to one pad bead 3 on the main body part 201 closest to the guide part 202, and the first end and the second end of the reinforcing rib 9 are. The mounting groove extends from one end of the main body part 201 connected with the guide part 202 towards a direction away from the guide part 202 along the arc length direction of the main body part 201, a first end of the mounting groove is located at the guide part 202, a second end of the mounting groove is close to one pad bead 3 on the main body part 201 closest to the guide part 202, and the first end and the second end of the mounting groove are opposite ends of the mounting groove in the length direction. The distance relationship between the second ends of the mounting groove and the reinforcing ribs 9 and the same guide part 202 closest to the mounting groove and the reinforcing ribs 9 is as follows: the distance between the second end of mounting groove and guide portion 202 is less than the distance between the second end of strengthening rib 9 and guide portion 202, and the extension length of strengthening rib 9 on main part 201 is greater than the extension length of mounting groove on main part 201 that also, through tensile strengthening rib 9, has improved the intensity of supporting band 2 link, has further improved the reliability of tire burst emergency safety device.

As shown in fig. 1 to 4 and 10 to 12, both ends of the main body portion 201 are provided with mounting grooves and reinforcing ribs 9, the mounting grooves are symmetrical structures, the mounting grooves include a wide groove portion 205 and a narrow groove portion 204 which are communicated with each other, the width of the wide groove portion 205 is greater than that of the narrow groove portion 204, the wide groove portion 205 is a rectangular groove which is penetratingly provided on the support band 2, and the width directions of the wide groove portion 205 and the narrow groove portion 204 are parallel to the width direction of the main body portion 201. The reinforcing ribs 9 are provided in two, and the mounting groove is located at the middle position of the two reinforcing ribs 9 and at the middle position in the width direction of the main body portion 201. The wide groove portion 205 and the narrow groove portion 204 are both located at the middle position in the width direction of the main body portion 201, the wide groove portion 205 and the narrow groove portion 204 are both rectangular grooves which penetrate through the main body portion 201 in the thickness direction of the main body portion 201, the bolt 1 is a hexagon socket head cap screw, and the width and the length of the wide groove portion 205 are both larger than the head size of the bolt 1. Set the mounting groove to symmetrical structure, make things convenient for bolt 1 and two to support area 2 and assemble, when construction bolt 1, operating personnel can pass the mounting groove with bolt 1 and install in arbitrary one side that supports area 2, has reduced the assembly and has judged the time, and construction bolt 1 can in the arbitrary direction of symmetry, simple to operate, and labour saving and time saving helps improving assembly efficiency.

As shown in fig. 10 to 12, a first limiting rod 5, a second limiting rod 6 and a nut 7 are sleeved on the bolt 1, the nut 7 is in threaded connection with the bolt 1, the first limiting rod 5 and the second limiting rod 6 both have a certain length, a through hole for the bolt 1 to pass through is formed in the middle position of the first limiting rod 5 and the second limiting rod 6 in the length direction, the length directions of the first limiting rod 5 and the second limiting rod 6 are perpendicular to the axis of the bolt 1, and the first limiting rod 5 and the second limiting rod 6 are located between the nut 7 and the head of the bolt 1. The guide portion 202 is provided with a guide groove 206 into which the screw portion of the bolt 1 is fitted, and the guide groove 206 communicates with the wide groove portion 205 and the width of the guide groove 206 is smaller than the width of the wide groove portion 205. When assembling, the one ends of the two support bands 2 are connected through the hook 4, the first limit rod 5 is inserted between the main body part 201 and the baffle part 203 of the other end of one support band 2, the second limit rod 6 is inserted between the main body part 201 and the baffle part 203 of the other end of the other support band 2, then the bolt 1 sequentially penetrates through the mounting groove of the support band 2, the through hole of the first limit rod 5 and the through hole of the second limit rod 6, then the nut 7 is sleeved on the bolt 1, the nut 7 is screwed until the nut 7 is in contact with the second limit rod 6, the head of the bolt 1 is in contact with the first limit rod 5, the second limit rod 6 is clamped between the nut 7 and the guide part 202, the first limit rod 5 is clamped between the head of the bolt 1 and the guide part 202, and the tire burst emergency safety device is installed on a rim.

As shown in fig. 1, 2, 5, 10 and 11, the hook 4 is connected with the two support bands 2, the hook 4 and the bolt 1 are arranged oppositely, the hook 4 has a certain length, one end of the hook 4 is provided with a first hanging hole 401 for embedding the end of one support band 2, the other end of the hook 4 is provided with a second hanging hole 402 for embedding the end of the other support band 2, the first hanging hole 401 and the second hanging hole 402 are through holes penetrating the hook 4 along the thickness direction of the hook 4, and the first hanging hole 401 and the second hanging hole 402 are rectangular holes. The hook 4 is in a circular arc-shaped structure, the axis of the hook 4 is parallel to the axis of the support belt 2, and the first hanging hole 401 and the second hanging hole 402 are arranged at two opposite ends of the hook 4 in the arc length direction. In assembling, the end of one of the support bands 2 is inserted into the first hanging hole 401 of the hook 4, and the end of the other support band 2 is inserted into the second hanging hole 402 of the hook 4, and the hook 4 hooks the two support bands 2. A first hanging hole 401 of the hook 4 is internally provided with a first contact surface which is in contact with the supporting belt, the first contact surface is an arc surface, the axis of the first contact surface is parallel to the axis of the supporting belt, and the first contact surface is in contact with the inner circular surface of the guide part of the supporting belt; the second hanging hole 402 of the hook 4 has a second contact surface contacting with the support band, the second contact surface is a circular arc surface and the axis of the second contact surface is parallel to the axis of the support band, the second contact surface contacts with the inner circular surface of the guide portion of the other support band. Set up convex first contact surface and second contact surface and two support areas on the couple and contact, the design at fillet has guaranteed couple and the contact of supporting the area at utmost, can support the even dispersion of pulling force that the area received after the flat tire takes place on the contact surface of couple, improves reliability and stability.

Example two

The second embodiment of the tire burst emergency safety device is different from the first embodiment of the tire burst emergency safety device mainly in the structural form of the bead 3, and the rest parts are the same. In the present embodiment, as shown in fig. 6 to 10, the bead 3 includes a mounting portion 301 inserted into the mounting hole 207 and a cushioning portion 302 connected to the mounting portion 301, the burring 8 surrounds the mounting portion 301, the cushioning portion 302 is located between the burring 8 and the wheel rim, and the first anti-skid structure 306 is provided on the cushioning portion 302. The center department of turn-ups 8 is for letting the male centre bore, the centre bore of turn-ups 8 and the mounting hole 207 that supports on the area 2 communicate, the centre bore of turn-ups 8 and the mounting hole 207 that supports on the area 2 are the round hole, the centre bore of turn-ups 8 and the diameter size of the mounting hole 207 that supports on the area 2 are the same and coaxial, turn-ups 8 stretches out (the inboard of supporting area 2 indicates the one side at the axle center place of supporting area 2) towards the inboard of supporting area 2 along supporting area 2 radially, turn-ups 8 presss from both sides between buffer 302 and supporting area 2. Installation department 301 passes and inserts the mounting hole 207 behind the centre bore of turn-ups 8 in, installation department 301 and support area 2 and turn-ups 8 are interference fit, turn-ups 8 extends along the whole circumference of installation department 301 in the outside of installation department 301, turn-ups 8 radially provides the supporting role to filling up pearl 3, play the guard action to filling up pearl 3, take place to blow out at the vehicle after, fill up pearl 3 and can not lead to being cut off because of receiving the tangential force too big, fill up pearl 3 and can not damage easily, the reliability is improved.

As shown in fig. 6 to 10, the buffering portion 302 and the mounting portion 301 are both cylindrical structures, the buffering portion 302 and the mounting portion 301 are coaxially and fixedly connected, the flange 8 is an annular structure, the flange 8 and the pad bead 3 are coaxially arranged, the outer diameter of the flange 8 is smaller than the diameter of the buffering portion 302, the mounting hole 207 is a through hole formed in the support band 2 in a penetrating manner, and the flange 8 surrounds the mounting hole 207. The diameter of cushioning portion 302 is greater than the diameter of installation department 301, the one end of installation department 301 and the one end fixed connection of cushioning portion 302, the other end of installation department 301 inserts in mounting hole 207, the diameter of cushioning portion 302 is greater than the diameter of the centre bore of turn-ups 8, form the step face between cushioning portion 302 and the installation department 301, turn-ups 8 contacts with the one end terminal surface of cushioning portion 302, the other end terminal surface of cushioning portion 302 is used for contacting with the surface of wheel rim, first anti-skidding structure 306 sets up on this end terminal surface of cushioning portion 302, this end terminal surface of cushioning portion 302 also is the first terminal surface of pad pearl 3. The setting of first anti-skidding structure 306 has increased the frictional force between pad pearl 3 and the rim, and the emergent safety device of flat tire after assurance flat tire emergence that can be better rotates with tire and wheel synchronization.

As shown in fig. 6 to 10, the first end surface and the second end surface of the pad bead 3 are end surfaces of two opposite ends of the pad bead 3 in the axial direction, the first end surface and the second end surface of the pad bead 3 are parallel, and the first end surface of the pad bead 3 is an end surface of one end of the mounting portion 301, which is far away from the buffer portion 302. The both ends of the axial of pad pearl 3 are stretched out towards the relative both sides that support the area 2 respectively, the second terminal surface setting of pad pearl 3 is used for the second non-slip structure 307 with the tire contact, the second terminal surface of pad pearl 3 is located the outside that supports area 2 (the outside of supporting area 2 is the one side at tire place), after flat tire takes place, the second terminal surface and the interior disc contact of tire of pad pearl 3, the second non-slip structure 307 that sets up on the second terminal surface of pad pearl 3 has increased the frictional force between pad pearl 3 and the tire, thereby can be better guarantee that flat tire takes place the back emergency safety device that blows out and run with tire and wheel synchronous.

Preferably, the first anti-slip structure 306 is an anti-slip pattern, and the second anti-slip structure 307 is also an anti-slip pattern.

As shown in fig. 6 to 10, the bead 3 is provided with a first groove 305 and a second groove 304, both the first groove 305 and the second groove 304 are circular grooves, the first groove 305 is a groove formed by extending from the center of the first end face of the bead 3 toward the inside of the bead 3 along the axial direction of the bead 3, the second groove 304 is a groove formed by extending from the center of the second end face of the bead 3 toward the inside of the bead 3 along the axial direction of the bead 3, the first groove 305 and the second groove 304 are coaxially arranged, the depth of the first groove 305 is smaller than that of the second groove 304, and the diameter of the first groove 305 is larger than that of the second groove 304. The first groove 305 and the second groove 304 are arranged to play a role of reducing weight without affecting strength, and on the other hand, because the second groove 304 is arranged at one end of the cushion bead 3 inserted into the mounting hole 207 of the support band 2, when the cushion bead 3 is mounted, the insertion end of the cushion bead 3 can generate a certain shrinkage deformation effect, so that the cushion bead 3 can be conveniently installed in the mounting hole 207, and the assembly efficiency is improved.

As shown in fig. 6 to 10, the bead 3 further includes a retaining ring portion 303 connected to the buffer portion 302 and surrounding the flange 8, the retaining ring portion 303 is located between the buffer portion 302 and the support band 2, the retaining ring portion 303 contacts with the inner circumferential surface of the support band 2, the retaining ring portion 303 is of a circular ring structure and the retaining ring portion 303 is coaxially disposed with the flange 8 and the buffer portion 302, the retaining ring portion 303 and the mounting portion 301 are fixedly connected to the same end of the buffer portion 302 and the retaining ring portion 303 and the mounting portion 301 extend out toward the same side of the buffer portion 302, the outer diameter of the retaining ring portion 303 is the same as the diameter of the buffer portion 302, the inner diameter of the retaining ring portion 303 is larger than the diameter of the mounting portion 301, and an annular groove for the flange 8 to be inserted is. Turn-ups 8 inserts between retaining ring portion 303 and the installation department 301 and turn-ups 8 and pad pearl 3 be interference fit, and pad pearl 3 cooperatees with turn-ups 8, and turn-ups 8 wraps the installation department 301 that fills up pearl 3, and retaining ring portion 303 that fills up pearl 3 surrounds turn-ups 8, has further strengthened the intensity and the stability that fill up pearl 3.

The height of the flange 8 (the height refers to the dimension of the flange 8 in the axial direction, namely the length of the flange 8 extending towards the support band) is smaller than the length of the stop ring part 303 (the length refers to the dimension of the stop ring part 303 in the axial direction), the height of the flange 8 is smaller than the depth of the annular groove formed between the stop ring part 303 and the mounting part 301, thus after assembly, a gap is formed between the end surface of the flange 8 and the end surface of the buffer part 302, the end surface of the stop ring part 303 is ensured to be attached to the inner circular surface of the support band 2, and the contact state of the stop ring part 303 and the inner surface of the support band is used as an inspection index during installation, thereby being beneficial. (if the degree of depth of the ring shape recess that forms between retaining ring portion 303 and the installation department 301 is the same with turn-ups 8's height, is less than turn-ups 8's height even, then after the assembly of pad pearl, just great clearance just can appear between the retaining ring portion 303 of pad pearl and the support area, the standard of judging does not have, leads to the assembly not in place, can influence the result of use of product) above combine the figure to right the utility model discloses it is right to have exemplified the description. Obviously, the specific implementation of the present invention is not limited by the above-described manner. Various insubstantial improvements are made by adopting the method conception and the technical proposal of the utility model; or without improvement, the above conception and technical solution of the present invention can be directly applied to other occasions, all within the protection scope of the present invention.

Claims (10)

1. Emergent safety device blows out, including two support areas, with two coupling assembling that support area is connected and set up the pad pearl on supporting the area, its characterized in that: the support band has the let pad pearl male mounting hole, is equipped with the bulge on the support band and surrounds the turn-ups that fills up the pearl, fills up the pearl and has first terminal surface and second terminal surface, fills up the first terminal surface setting of pearl and is used for the first anti-skidding structure with the contact of wheel rim.

2. The flat tire emergency safety device of claim 1, wherein: the cushion bead comprises an installation part inserted into the installation hole and a buffering part connected with the installation part, the flanging surrounds the installation part, the buffering part is located between the flanging and the wheel rim, and the first anti-skid structure is arranged on the buffering part.

3. The flat tire emergency safety device of claim 2, wherein: the buffering portion is a conical structure, the small-diameter end of the buffering portion is connected with the mounting portion, and the first anti-skidding structure is arranged on the end face of the large-diameter end of the buffering portion.

4. The flat tire emergency safety device of claim 2, wherein: the pad bead further comprises a check ring part which is connected with the buffering part and surrounds the flanging, and the check ring part is positioned between the buffering part and the supporting belt.

5. The flat tire emergency safety device of claim 4, wherein: the buffering portion with the installation department is cylindrical structure and buffering portion and installation department and is coaxial fixed connection, the turn-ups with the fender circle portion is ring shape structure and retaining ring portion and turn-ups and buffering portion and is coaxial setting.

6. The emergency safety device for tire burst according to any one of claims 1 to 5, wherein: the second end face of the bead is provided with a second anti-slip structure for contacting with a tire.

7. The emergency safety device for tire burst according to any one of claims 1 to 5, wherein: coupling assembling includes bolt and couple, the tip setting of supporting the area lets bolt male mounting groove and the strengthening rib that distributes in the relative both sides of mounting groove, the length of strengthening rib is greater than the length of mounting groove.

8. The flat tire emergency safety device of claim 7, wherein: the mounting groove is symmetrical structure, and the mounting groove is including the wide slot portion and the narrow groove portion that are linked together, and the width of wide slot portion is greater than the width of narrow groove portion, and the wide slot portion is in run through the rectangular channel that sets up on the supporting band.

9. The flat tire emergency safety device of claim 7, wherein: the one end setting of couple lets the first hanging hole of the tip embedding of one of them support area, and the other end setting of couple lets the second hanging hole of the tip embedding of another support area, has in the first hanging hole and supports the first contact surface that the area contacted, and first contact surface is the axis of arc surface and first contact surface and supports the axis parallel of area, has in the second hanging hole and supports the second contact surface that the area contacted, and the axis that the second contact surface was arc surface and second contact surface is parallel with the axis of supporting the area.

10. The emergency safety device for tire burst according to any one of claims 1 to 5, wherein: and the supporting belt is provided with a preformed hole for mounting the tire pressure monitoring sensor.

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