CN202641583U - Anti-collision multi-wheel clasping safety car - Google Patents

Abstract

The utility model provides an anti-collision multi-wheel clasping safety car, which is characterized in that a bumper at the front side and/or the back side of a vehicle body is an inflatable tire bumper; a wheel is provided with a wheel clasping mechanism; the inflatable tire bumper comprises a lever frame and an inflatable tire with an inflating hollow cavity; the wheel clasping mechanism comprises a pushing seat and a pulling-back seat, which are arranged located in front and back of the wheel, a pressing seat located above the wheel; the pushing seat and the pulling-back seat are connected through an upper transmission piece and a lower transmission piece; the lower transmission piece is provided with a spring; and the pressing seat is respectively hinged with the pushing seat and the pulling-back seat through a hinging piece. When collision happens, impact force generated by collision is effectively reduced by buffering and energy absorption through a plurality of groups of springs, and horizontal and inclined force which is transmitted in front and/or back vertical direction is converted into oppositely-pressed and vertically downward force to be acted on the wheel, so as to utilize the strong bearing and compressive property of a wheel inflatable tire to transmit collision force to the ground surface; and therefore, a vehicle body structure is prevented from impact force and from being collapsed, deformed and damaged, the safety of drivers and passengers in the vehicle is protected, impact damages to pedestrians and objects outside the vehicle can be effectively reduced, and multiple safety effects of collision prevention, vehicle protection, people protection, object protection and the like can be achieved.

Description

Crashworthiness is taken turns the associated holding accident-free vehicle more

Technical field

The utility model relates to a kind of car, and the safety vehicle that especially a kind of many wheel associated holding crashworthiness are not damaged belongs to the Automobile Design and Manufacturing technical field.

Background technology

Automotive safety is divided into active safety and passive security, and passive security claims again collision safety.Active safety is handling closely related with driving, and passive security is then closely related with the structure design of automobile self, and passive security plays a major role in automotive safety simultaneously.The safeguard construction of existing automobile can be divided in body structure and the car driver and crew and protect structure such as safety strap, safety air bag, safe steering swivel system, safety seat etc.; body structure can cushion and energy-absorbing; play a major role in lowering impact power, driver and crew protect structure to play the secondary role of protection in the car.According to the America and Europe statistics of various car accidents is shown, front hitting at most, rear-end collision takes second place, and side is hit and is taken second place.So impinge upon before and after longitudinally the most common in the accident (＞60%-70%).With regard to the most general existing three box car structure, have following characteristics: middle vehicle body is that the crew module is harder, and bodyshell rigidity is larger, and the front and back vehicle body is that machinery space, boot compartment are softer, and rigidity is less, and certain toughness is arranged.When being subject to clashing into, by the compressive deformation of front and back vehicle body, absorb as much as possible the impact energy of bump, to lower the impact damage to the crew module.But this to only depend on the conquassation distortion of the forward and backward vehicle body of automobile such as machinery space, boot compartment be that the form that car is ruined is come buffering energy-absorbing, the energy of its snubber is extremely limited, as: with the celebrated European Euro-NCAP of the strictest testing standard in the whole world, the full test speed per hour that obtains the highest 5 asterisk standards in its new car head-on crash (40%ODB) test is no more than 64km/h(America and Japan therewith roughly the same), therefore its safe effect only limits to the low-medium speed collision.Along with the fast development of express highway, the greatly increase of automobile driving speed, the auto against speed per hour also significantly improves, so the limitation of prior art highlights day by day and can't essence solve.Etesian a large amount of " car crash " automobile collision accident examples in the current whole world have proved absolutely this point.Therefore, for the defective of existing automotive body structure, must research and develop the needs that new safe vehicle body structure satisfies modern traffic safety.

Summary of the invention

The utility model aims to provide a kind of crashworthiness and takes turns the associated holding accident-free vehicle more, and the fierce impulsive force when clashing into more by force to cushion, to absorb prevents the automobile damage, driver and crew's safety in the service truck.

The utility model is realized by following technical proposal: a kind of crashworthiness is taken turns the associated holding accident-free vehicle more, it is characterized in that the vehicle body bumper/spoiler is the air tyre bumper/spoiler, and wheel holding mechanism is set on the wheel, wherein:

The air tyre bumper/spoiler comprises the thick stick frame and is located on the thick stick frame its air tyre with inflating cavity;

Wheel holding mechanism comprises the down pressing seat of pull back seat and the top at the advance seat that is positioned at wheel the place ahead, rear, and advance seat links to each other by upper and lower Transmission with the seat of pulling back, and lower transmission component is provided with spring, and down pressing seat is hinged with pulling back with advance seat respectively by articulation piece; So that by the bumper/spoiler with air tyre; do not damage; the collision impact power that indeformable ground pressure-bearing is fierce; further cushion by wheel holding mechanism again; absorbing forces of impact; simultaneously with front or/and the rear level of vertically transmitting; tilting force is converted in opposite directions to pressing; power vertically downward and act on wheel; take full advantage of again the powerful load-bearing compressive property of pneumatic type vehicle wheels; be delivered to ground after impact subtracted power; protect thus body structure power and the conquassation distortion damage that is not impacted; driver and crew's safety in the final effectively protection car reaches crashworthiness; protect car; protect people's triple safe effect.

Described thick stick frame is an arc frame, the outer facade of arc frame is made as the concave surface that concaves, there is respectively spiral head at the two ends of arc frame, spiral head is provided with vertical through hole, vertically establish connecting rod in the through hole, be fixed with the deck matched with air tyre on the spiral head, the upper and lower of arc frame is respectively equipped with the support plate that adapts with the arc frame shape, on the concave surface that air tyre is supported in the outer facade of arc frame, and link to each other with advance seat in the wheel holding mechanism by long through-hole and connecting rod.

Described air tyre two ends are respectively equipped with plug, the deck phase clamping on this plug and the thick stick frame spiral head, and by the outer snap ring of plug and fastening nail fixedly plug on spiral head, thereby air tyre is fixed on the thick stick frame.

Vertical through hole on the described arc frame spiral head is made as two long through-holes, is provided with the U-shaped connecting rod in two long through-holes, and deck is fixed on the spiral head inboard, and each support plate end of arc frame upper and lower is respectively equipped with double jaw.

Be provided with telescopic boom between described thick stick frame and the crossbeam, be positioned at the telescopic boom both sides on the thick stick frame and be respectively equipped with base, on each base bolster is housed, two bolsters place respectively the longeron of automobile both sides, so that supporting lever frame, and under the telescopic boom effect, the thick stick frame is moved forward and backward along automobile longitudinal girder, realize the flexible of thick stick frame.

Described telescopic boom is separately fixed at spring on thick stick frame and the vehicle beam for its two ends, to consist of telescopic thick stick frame.

Described telescopic boom is two connecting rods that are hinged to X-shaped, the two ends of two connecting rods are hinged by the first hinge and the first bearing that is fixed on thick stick frame and the vehicle beam respectively, the hinge-point of two connecting rods is hinged by the second hinge and the second bearing that is fixed on thick stick frame or the vehicle beam, the hinge-point of two connecting rods links to each other with spring on being fixed on the second bearing, to consist of telescopic thick stick frame.

Described bumper/spoiler with air tyre is separately positioned on before the vehicle body or/and rear side, as front or/and rear bumper.

Described advance seat comprises that the front end upper and lower part establishes plush copper, groove is established respectively in the plush copper both sides, vertical groove is established at the middle part, the pressure-bearing frame of card base is established in the bottom, this pressure-bearing frame links to each other with the frame that pushes away of its top band the first main tooth bar, push away frame middle part by horizontal push rod with its on link to each other with the push rod of the second main tooth bar, push rod one side is established front spring, pushes away the frame bottom and is provided with the arc front pressuring plate that adapts with wheel; Wherein:

Upper and lower plush copper links to each other with the connecting rod that places thick stick frame spiral head long through-hole by fastening nail respectively, and the groove of plush copper both sides is matched with thick stick frame support plate end respectively;

The vertical groove at advance seat pressure-bearing frame middle part is made as the deep-slotted chip breaker that the spiral tyre surface with the air tyre end adapts;

When collision occurs, thick stick frame spiral head and on air tyre move up into after being pushed in the vertical groove of pressure-bearing frame and compacting at the vertical arc-shaped slot of groove, thereby the frame that pushes away that promotes to link to each other with the pressure-bearing frame moves backward.

The described seat of pulling back comprises that its underpart is with the arc rear fender that adapts with wheel, the frame of pulling back of top band the first secondary tooth bar, pull back frame middle part by intermediate rod with its on link to each other with the pull bar of the second secondary tooth bar, this pull bar one side is provided with rear spring, wherein, the first secondary tooth bar is meshed with the first main tooth bar by the first gear or the first gear cluster of uploading in the moving part, and the second secondary tooth bar on the pull bar is meshed with the second main tooth bar on the push rod by the second gear in the lower transmission component or the second gear cluster, in order to spur the seat reach of pulling back when the power that collision produces is moved after promoting advance seat, make front pressuring plate, rear fender in the past, rear side is held wheel in opposite directions tightly.

Described down pressing seat comprises that its lower end is with the arc lower platen that adapts with wheel, the upper end is with the pressure frame of forward and backward permanent seat, be hinged on front and rear connecting rods on the forward and backward permanent seat by first, second hinge respectively, front and rear connecting rods be hinged on advance seat by the 3rd, the 4th hinge respectively and the seat of pulling back on.When impact is promoting to move behind the advance seat, spurring when pulling back the seat reach, the extruding down pressing seat moves down, and makes the arc lower platen from upper side compression wheel.

Described front spring places between fixed mount front end and the advance seat, and rear spring places the fixed mount rear end and pulls back between the seat, and fixed mount is fixed on the automobile longitudinal girder.When impact force produces by forward and backward spring buffer, absorb collision energy, and after the impact force releasing, by forward and backward spring make advance seat, a return of pulling back unclamps front pressuring plate, rear fender, lower platen are held tightly wheel.

Described the first gear that is meshed or the first gear cluster and the first major and minor tooth bar, be horizontally set in the upper gear box that is connected into by end box and lid, each gear of the first gear or the first gear cluster is fixed on the upper gear box by fastening nail, this fastening nail also is the wheel shaft of gear simultaneously, and upper gear box is fixed on the engine nacelle curb girder by fixing press strip.

Described the second gear that is meshed or the second gear cluster and the second major and minor tooth bar, be vertically set in the lower transmission case that is connected into by end box and lid, each gear of the second gear or the second gear cluster is fixed on the lower transmission case by fastening nail, this fastening nail also is the wheel shaft of gear simultaneously, and lower transmission case is fixed on the automobile longitudinal girder by fastening nail.

Described wheel holding mechanism is separately positioned on each wheel of automobile, and by under push away frame and connect each wheel holding mechanism, to consist of many wheel associated holdings; Wherein push away frame down and comprise base plate, the left and right sides of this base plate front end links to each other with the card base of front-wheel advance seat pressure-bearing frame lower end respectively by connecting element, the left and right sides of rear end links to each other with the trailing wheel seat frame bottom of pulling back of pulling back respectively by connecting element, the middle part hangs on the car chassis by hanging piece, and base plate can be slided front and back on hanging piece.

The connecting element of described base plate front end is a spill deck, is connected in the card base of advance seat pressure-bearing frame lower end, and fixes by screw; The connecting element of described base plate rear end is triangle frame, is connected to the seat frame bottom of pulling back of pulling back by U-shaped card and screw.

Before, during and after described base plate is divided into three sections, the both sides, rear end of leading portion, the front and back ends both sides in stage casing, the front end both sides of back segment hang on the car chassis by the U-shaped hanging piece respectively, each section energy is slided in the U-shaped hanging piece of correspondence, and connect between each section, but do not connect.

The utlity model has following advantages and effect:

1; can effectively the impulsive force that produces will be collided by the utility model; through many group spring buffers; energy-absorbing and after subtracting power; again with front or/and the rear level of vertically transmitting; tilting force is converted in opposite directions to pressing; power vertically downward and act on wheel; take full advantage of again the powerful load-bearing compressive property of pneumatic type vehicle wheels; impact is delivered to ground; protect thus body structure; especially machinery space and boot compartment power and the conquassation distortion damage that is not impacted; and then the indeformable damage in cabin is driven in protection; driver and crew's safety in the final effectively protection car reaches crashworthiness; protect car; protect people's triple safe effect.

2, because before of the present utility model or/and rear bumper can passively bounce back after being hit, therefore can effectively reduce impact damage to goers outside vehicle, object, the safety of lifting car unprofessional person, object.

3, the utility model is applicable to existing all kinds of vehicles, such as car, MPV, SUV, commercial vehicle, minicar, and big-and-middle-sized BUS car, especially can greatly improve the crash survivability of tack manned vehicle, commercial vehicle/comm..vehicle, can solve preferably various cab-over-engine vehicles and lack the poor difficult problem of energy-absorbing deforming zone crash survivability because of headstock.

In sum, adopting such scheme, the triple safe effect that can reach crashworthiness, protect car, protect the people, historical facts or anecdotes is one to have the safety vehicle of high reliability body structure.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is with the bumper/spoiler plan structure figure of air tyre in the utility model;

Fig. 3 is that the B of Fig. 2 is to view;

Fig. 4 is the partial enlarged drawing of Fig. 1;

Fig. 5 is that the C of Fig. 4 is to view;

Fig. 6 is the birds-eye view of Fig. 5;

Fig. 7 is the D-D view of Fig. 5;

Fig. 8 is the E-E view of Fig. 6;

Fig. 9 is that the F of Fig. 6 is to view;

Figure 10 is the upward view of Fig. 1;

Figure 11 pushes away frame G to view under among Figure 10;

Figure 12 be among Fig. 1 A to partial view.

The specific embodiment

The embodiment that provides below in conjunction with accompanying drawing is described further the utility model, but the content of the utility model protection is not limited to this.

The crashworthiness that the utility model provides is taken turns the associated holding safety vehicle more, and the forward and backward bumper/spoiler of its vehicle body is the bumper/spoiler with air tyre, on four wheels wheel holding mechanism is set all, wherein:

Each bumper/spoiler with air tyre comprises thick stick frame 5, is located on the thick stick frame 5 its air tyre 13 with cavity 12;

Each wheel holding mechanism comprises the down pressing seat of pull back seat and the top at the advance seat that is positioned at wheel the place ahead, rear, advance seat links to each other by upper and lower Transmission with the seat of pulling back, lower transmission component is provided with pull back spring, and down pressing seat is hinged with advance seat and the seat of pulling back respectively by articulation piece;

Specific as follows:

Described thick stick frame 5 is an arc frame, the outer facade of arc frame is made as the concave surface 26 that concaves, there is respectively spiral head 15 at the two ends of arc frame, spiral head 15 is provided with two vertical long through-holes 14, establish U-shaped connecting rod 54 in the two vertical long through-holes 14, spiral head 15 inboards are fixed with the deck 11 matched with air tyre 13, the upper and lower of arc frame be respectively equipped with the arc frame shape adapt with the upper supporting plate 1 of backing plate 3 with the lower carrier plate 27 of backing plate 28, double jaw 25 is established respectively at upper lower carrier plate 1,27 two ends, such as Fig. 2, Fig. 3, Fig. 9;

Described air tyre 13 two ends are respectively equipped with plug 10, deck 11 phase clampings on this plug 10 and thick stick frame 5 spiral heads 15, and by the outer snap ring 9 of plug 10 and fastening nail fixedly plug 10 on spiral head 15, in order to air tyre 13 is supported on the concave surface 26 of the outer facade of arc frame, thereby air tyre 13 is fixed on the thick stick frame 5, establish charging connector 2 on the air tyre 13, to inflate by 2 pairs of air tyrees 13 of charging connector, such as Fig. 2, Fig. 3;

Be provided with telescopic boom between described thick stick frame 5 and the vehicle beam 23, be positioned at the telescopic boom both sides on the thick stick frame 5 and be respectively equipped with base 8, on each base 8 bolster 16 is housed, two bolsters 16 place respectively automobile longitudinal girder 24, so that supporting lever frame 5, and under the telescopic boom effect, thick stick frame 5 is moved forward and backward along automobile longitudinal girder 24, realize the flexible of thick stick frame 5, such as Fig. 2, Fig. 3;

Described telescopic boom is two connecting rods 4,19 that are hinged to X-shaped, the two ends of connecting rod 4 are hinged by the first hinge 6 and the first bearing 7 that is fixed on the thick stick frame 5 respectively, the two ends of connecting rod 19 are hinged by the second hinge 17 and the second bearing 18 that is fixed on the vehicle beam 23 respectively, two connecting rods 4,19 hinge-point are hinged by the 3rd hinge 22 and the 3rd bearing 20 that is fixed on the vehicle beam 23, and two connecting rods 4,19 hinge-point link to each other with spring 21 on being fixed on the 3rd bearing 20, to consist of telescopic thick stick frame 5, such as Fig. 2;

Described advance seat comprises on the front end, lower middle portion is not established plush copper 53,30, plush copper 53, groove 63 is established respectively in 30 both sides, vertical groove 291 is established at the middle part, the pressure-bearing frame 29 of card base 31 is established in the bottom, vertically groove 291 is made as the deep-slotted chip breaker that the spiral tyre surface with air tyre 13 ends adapts, pressure-bearing frame 29 links to each other with the frame 52 that pushes away of its top band the first main tooth bar 49, push away frame 52 middle parts by horizontal push rod 60 with its on link to each other with the push rod 59 of the second main tooth bar, push rod 59 1 sides are established front spring 51, push away frame 52 bottoms and be provided with the arc front pressuring plate 32 that adapts with wheel, wherein, on, lower plush copper 53,30 link to each other plush copper 53 by fastening nail with the U-shaped connecting rod 54 that places thick stick frame 5 spiral heads 15 long through-holes 14 respectively, the groove 63 of 30 both sides respectively with thick stick frame 5 support plates 1, the double jaw 25 at 27 two ends is matched.When collision occurs, thick stick frame 5 spiral heads 15 and on air tyre 13 enter in the vertical groove 291 of pressure-bearing frame 29 and compacting at the bottom of the vertical slots of vertical groove, thereby the frame 52 that pushes away that promotes to link to each other with pressure-bearing frame 29 moves backward, such as Fig. 1, Fig. 4, Fig. 5, Fig. 6, Fig. 7;

The described seat of pulling back comprises that its underpart is with the arc rear fender 38 that adapts with wheel, the frame 39 of pulling back of top band the first secondary tooth bar 42, pull back frame 39 middle parts by intermediate rod 64 with its on link to each other with the pull bar 56 of the second secondary tooth bar, these pull bar 56 1 sides are provided with rear spring 37, wherein, the first secondary tooth bar 42 is made of three gears by the first gear cluster 65(that uploads in the moving part 44) be meshed with the first main tooth bar 49, the second secondary tooth bar on the pull bar 56 is made of three gears by the second gear cluster 58(in the lower transmission component 33) be meshed with the second main tooth bar on the push rod 59, in order to spur the seat reach of pulling back when the power that collision produces is moved after promoting advance seat, make front pressuring plate 32, rear fender 38 in the past, rear side is held wheel in opposite directions tightly, such as Fig. 4, Fig. 5, Fig. 6, Fig. 7;

Described down pressing seat comprises that its lower end is with the arc lower platen 45 that adapts with wheel, the upper end is with forward and backward permanent seat 46,35 pressure frame, be hinged on the front and rear connecting rods 48,40 on the forward and backward permanent seat 46,35 by the first hinge 47, the second hinge 36 respectively, front and rear connecting rods 48,40 be hinged on advance seat by the 3rd hinge 50, the 4th hinge 41 respectively and the seat of pulling back on, so that the power that collision produces is moved, is spurred after promoting advance seat in the reach of return seat, the extruding down pressing seat moves down, and make arc lower platen 45 from upper side compression wheel, such as Fig. 4, Fig. 1;

Described front spring 51 places between fixed mount 34 front ends and the advance seat, and rear spring 37 places fixed mount 34 rear ends and pulls back between the seat, and fixed mount 34 is fixed on the automobile longitudinal girder 24 by fastening nail.When producing, impact force cushions and the absorption collision energy by forward and backward spring 51,37 compressions, and after impact force is removed, by forward and backward spring 51,37 make advance seat, a return of pulling back unclamps front pressuring plate 32, the holding tightly of rear fender 38,45 pairs of wheels of lower platen, such as Fig. 4, Fig. 6, Fig. 7;

Described the first gear cluster 65(that is meshed is made of three gears) and the first major and minor tooth bar 49,42, be horizontally set in the upper gear box 44 that is connected into by end box 61 and lid 62, each gear of the first gear cluster 65 is fixed on the upper gear box 44 by fastening nail 66 respectively, and this fastening nail 66 also is the wheel shaft of gear 65 simultaneously; Upper gear box 44 is fixed on the engine nacelle curb girder by fixing press strip 43; Described the second gear cluster 58(that is meshed is made of three gears) and the second major and minor tooth bar 59,56, be vertically set in the lower transmission case 33 that is connected into by end box 55 and lid 57, each gear of the second gear cluster 58 is fixed on the lower transmission case 33 by fastening nail 67 respectively, this fastening nail 67 also is the wheel shaft of gear 58 simultaneously, and lower transmission case 33 is fixed on the automobile longitudinal girder 24 by fastening nail 67, such as Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9;

Wheel holding mechanism on described four wheels that are arranged on automobile, by under push away frame and be connected, to consist of the four-wheel associated holding, wherein push away frame down and comprise base plate, this base plate is divided into leading portion 68, stage casing 69, back segment 70, the both sides, rear end of leading portion 68, the front and back ends both sides in stage casing 69, the front end both sides of back segment 70 hang on the car chassis by U-shaped hanging piece 71 and fastening nail respectively, slided in 68,69,70 3 sections energy front and back in the U-shaped hanging piece 71 of correspondence, and connect between three sections, but do not connect, such as Figure 10, Figure 11; Base plate leading portion 68 front end both sides are connected in the card base 31 of front-wheel advance seat pressure-bearing frame 29 lower ends by spill deck 72, such as Fig. 1, Figure 12, and fix by screw, both sides, base plate back segment 70 rear end are connected to trailing wheel seat frame 39 bottoms of pulling back of pulling back by triangle frame 73, U-shaped card 74 and screw respectively, such as Fig. 1, Figure 10, Figure 11, Figure 12.

Claims (10)

1. a crashworthiness is taken turns the associated holding accident-free vehicle more, it is characterized in that before the vehicle body or/and the bumper/spoiler of rear side is the air tyre bumper/spoiler wheel holding mechanism being set on the wheel, and wherein: the air tyre bumper/spoiler comprises the thick stick frame and is located on the thick stick frame its air tyre with inflating cavity; Wheel holding mechanism comprises the advance seat that is positioned at the forward and backward side of wheel and the seat of pulling back, and the down pressing seat that is positioned at the wheel top, advance seat links to each other by upper and lower Transmission with the seat of pulling back, and lower transmission component is provided with spring, and down pressing seat is hinged with advance seat and the seat of pulling back respectively by articulation piece.

2. crashworthiness according to claim 1 is taken turns the associated holding accident-free vehicle more, it is characterized in that:

Described thick stick frame is an arc frame, the outer facade of arc frame is made as the concave surface that concaves, there is respectively spiral head at the two ends of arc frame, spiral head is provided with vertical through hole, vertically establish connecting rod in the through hole, be fixed with the deck matched with air tyre on the spiral head, the upper and lower of arc frame is respectively equipped with the support plate that adapts with the arc frame shape;

Described air tyre two ends are respectively equipped with plug, the deck phase clamping on this plug and the thick stick frame spiral head, and by the outer snap ring of plug and fastening nail fixedly plug on spiral head.

3. crashworthiness according to claim 1 is taken turns the associated holding accident-free vehicle more, it is characterized in that described thick stick frame links to each other with vehicle beam by telescopic boom, be positioned at the telescopic boom both sides on the thick stick frame and be respectively equipped with base, on each base bolster is housed, two bolsters place respectively the longeron of automobile both sides.

4. crashworthiness according to claim 3 is taken turns the associated holding accident-free vehicle more, it is characterized in that described telescopic boom is separately fixed at spring on thick stick frame and the vehicle beam for its two ends; Perhaps for being hinged to two connecting rods of X-shaped, the two ends of two connecting rods are hinged by the first hinge and the first bearing that is fixed on thick stick frame and the vehicle beam respectively, the hinge-point of two connecting rods is hinged by the second hinge and the second bearing of being fixed on thick stick frame or the vehicle beam, and the hinge-point of two connecting rods links to each other with spring on being fixed on the second bearing.

5. crashworthiness according to claim 1 is taken turns the associated holding accident-free vehicle more, it is characterized in that:

Described advance seat comprises that the front end upper and lower part establishes plush copper, groove is established respectively in the plush copper both sides, vertical groove is established at the middle part, the pressure-bearing frame of card base is established in the bottom, this pressure-bearing frame links to each other with the frame that pushes away of its top band the first main tooth bar, push away frame middle part by horizontal push rod with its on link to each other with the push rod of the second main tooth bar, push rod one side is established front spring, pushes away the frame bottom and is provided with the arc front pressuring plate that adapts with wheel;

The described seat of pulling back comprises that its underpart is with the arc rear fender that adapts with wheel, the frame of pulling back of top band the first secondary tooth bar, pull back frame middle part by intermediate rod with its on link to each other with the pull bar of the second secondary tooth bar, this pull bar one side is provided with rear spring, wherein, the first secondary tooth bar is meshed with the first main tooth bar by the first gear or the first gear cluster of uploading in the moving part, and the second secondary tooth bar on the pull bar is meshed with the second main tooth bar on the push rod by the second gear in the lower transmission component or the second gear cluster;

Described down pressing seat comprises that its lower end is with the arc lower platen that adapts with wheel, the upper end is with the pressure frame of forward and backward permanent seat, be hinged on front and rear connecting rods on the forward and backward permanent seat by first, second hinge respectively, front and rear connecting rods be hinged on advance seat by the 3rd, the 4th hinge respectively and the seat of pulling back on.

6. crashworthiness according to claim 5 is taken turns the associated holding accident-free vehicle more, it is characterized in that the vertical groove at described advance seat pressure-bearing frame middle part is made as the deep-slotted chip breaker that adapts with the air tyre bumper ends; The plush copper of described advance seat pressure-bearing frame front end upper and lower part links to each other with the connecting rod that places thick stick frame spiral head long through-hole by fastening nail respectively, and the groove of plush copper both sides is matched with thick stick frame support plate end respectively.

7. crashworthiness according to claim 5 is taken turns the associated holding accident-free vehicle more, it is characterized in that described front spring places between fixed mount front end and the advance seat, and rear spring places the fixed mount rear end and pulls back between the seat, and fixed mount is fixed on the automobile longitudinal girder.

8. crashworthiness according to claim 5 is taken turns the associated holding accident-free vehicle more, it is characterized in that:

Described the first gear that is meshed or the first gear cluster and the first major and minor tooth bar, be horizontally set in the upper gear box that is connected into by end box and lid, each gear of the first gear or the first gear cluster is fixed on the upper gear box by fastening nail, this fastening nail also is the wheel shaft of gear simultaneously, and upper gear box is fixed on the engine nacelle curb girder by fixing press strip;

Described the second gear the second gear cluster that is meshed and the second major and minor tooth bar, be vertically set in the lower transmission case that is connected into by end box and lid, each gear of the second gear or the second gear cluster is fixed on the lower transmission case by fastening nail, this fastening nail also is the wheel shaft of gear simultaneously, and lower transmission case is fixed on the automobile longitudinal girder by fastening nail.

9. crashworthiness according to claim 1 is taken turns the associated holding accident-free vehicle more, it is characterized in that described wheel holding mechanism is separately positioned on each wheel of automobile, and by under push away frame and connect each wheel holding mechanism, push away frame under this and comprise base plate, the left and right sides of this base plate front end links to each other with the card base of front-wheel advance seat pressure-bearing frame lower end respectively by connecting element, the left and right sides of rear end links to each other with the trailing wheel seat frame bottom of pulling back of pulling back respectively by connecting element, and the middle part hangs on the car chassis by hanging piece.

10. crashworthiness according to claim 9 is taken turns the associated holding accident-free vehicle more, and the connecting element that it is characterized in that described base plate front end is a spill deck, is connected in the card base of advance seat pressure-bearing frame lower end, and fixes by screw; The connecting element of described base plate rear end is triangle frame, is connected to the seat frame bottom of pulling back of pulling back by U-shaped card and screw; Before, during and after described base plate is divided into three sections, the both sides, rear end of leading portion, the front and back ends both sides in stage casing, the front end both sides of back segment hang on the car chassis by the U-shaped hanging piece respectively.

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