CN105711558B - A kind of accessory cart for movement failure wheel - Google Patents

Abstract

A kind of accessory cart for movement failure wheel is related to failure wheel auxiliary treating apparatus field, the more particularly, to improvement of the equipment of movement failure wheel.It is short to propose a kind of delicate structure, easy to use and operating time, the clamping for reliably supporting and stablizing can be carried out during use to failure wheel, so that operating personnel can utilize accessory cart to replace failure wheel, continue the accessory cart for movement failure wheel of certain short distance traveling after wheel failure.The side of the car body is hinged with anticollision wheel, and the root edge of the anticollision wheel extend out to the front end of car body higher than the root edge and anticollision wheel of traveling wheel.The clamp assembly includes wheel frictional power roller, overturning clamping plate, torsion shaft, unlock connecting elements and a pair of of side holding component；Defect in the prior art is efficiently solved, there is good reliability, stable structure, load big, good clamping effect and without external connection power source.

Description

A kind of accessory cart for movement failure wheel

Technical field

The present invention relates to failure wheel auxiliary treating apparatus field, the more particularly, to equipment of movement failure wheel changes Into.

Background technology

At present, people in face of blowing out, gas leakage when failures when, first vehicle is usually moved to safety area, then carry out standby The replacement of tire；In this way, problems with will be caused：First, after wheel fault, vehicle movement is very difficult, and starting vehicle by force will make It is serious or even cause traffic accident when being difficult to manipulate into the damage of wheel hub；2nd, with the continuous development of automobile, antitheft spiral shell Bolt is also more and more extensive to be applied in vehicle, therefore, once its dedicated anti-theft nut is lost, car owner in face of wheel therefore Very long time waiting trailer must be then expended during barrier；3rd, car owner is in self-changeable spare tyre, when usually having longer operation Between, therefore, also significantly increase the risk of traffic jam.

In this regard, State Bureau disclosed on July 21st, 2010 a entitled " motorcycle, electric vehicle blow out emergent trailer ", Application No. is the Chinese utility model patent of " 200920042920.4 ", tiltedly on duty failure wheel is propped up by two in the case Support, and the positioning between failure wheel and trailer is completed by fixed rope.

However, people have found after actual use, and since its structure is too simple, in the event in face of different size Reliable supporting role can not be played during barrier wheel；Meanwhile " the walking about " of emergency car is only realized by front-wheel, trailing wheel, therefore, When loading larger, stability is very poor.In addition, such technical solution stability in the wheel of movement automobile is very poor, especially exist During the driving wheel of movement automobile, due to having certain torque on driving wheel, easily there is slippage, entirety in such device A series of problems, such as overturning, using effect are very poor.

Invention content

For the present invention in view of the above problems, to propose a kind of delicate structure, easy to use and operating time short, when use, can be right Failure wheel carries out the clamping for reliably supporting and stablizing, so that operating personnel can utilize accessory cart to replace failure wheel, Continue the accessory cart for movement failure wheel of certain short distance traveling after wheel failure.

The technical scheme is that：Including car body, walking component and clamp assembly, if the walking component includes involvement It is connected on the traveling wheel of vehicle bottom, so that car body can move freely on the ground, the clamp assembly is connected on the car body and used In the clamping failure wheel.

The side of the car body is hinged with anticollision wheel, and the root edge of the anticollision wheel is higher than the root edge and anticollision wheel of traveling wheel It extend out to the front end of car body.

It is lateral that the clamp assembly includes wheel frictional power roller, overturning clamping plate, torsion shaft, unlock connecting elements and a pair Clamp assemblies；

The end of the wheel frictional power roller and torsion shaft is hinged in car body and the two is mutually parallel, described to turn over Turn clamping plate it is parallel with torsion shaft and overturning clamping plate middle part be hinged with torsion shaft, it is described overturn clamping plate backwards to torsion shaft One side end face is equipped with a pair of of raised line, and a pair of raised line is parallel with torsion shaft and is located at the both sides of torsion shaft；

A pair of side holding component is connected to the both sides of car body, and the unlock connecting elements is connected to vehicle by spring The lower part of body, the side holding component include lateral clamping plate, spine bar, pawl, solution closing piece and clamping plate shaft, the clamping plate shaft Both ends be hinged in car body, the clamping plate shaft and torsion shaft are perpendicular and positioned at torsion shaft and wheel frictional power roller Between, the lateral clamping plate it is parallel with clamping plate shaft and its middle part be hinged with clamping plate shaft, it is described solution closing piece top and The end of unlock connecting elements is hinged and solves the bottom end of closing piece and is fixedly connected on the side surface of clamping plate shaft, the pawl It is hinged in the middle part of solution closing piece and torsional spring is equipped between solution closing piece, the spine bar is fixedly connected on lateral clamping plate towards solution closing piece End face on and be meshed with pawl.

The clamp assembly includes two support rollers and two pairs of translation clamping plates, and the end of two support rollers is hinged on In car body and the two is mutually parallel, be fixedly connected with respectively at the both sides end of the support roller screw rod axially set along it, And on the screw rod of same support roller both sides screw thread it is oppositely oriented, the lower part of the translation clamping plate be socketed the screw rod and with institute State screw flight connection.

It is linked positioned at two described support roller the same side two screw rods by synchronous belt.

The clamp assembly includes two drive rolls and four clamping bar components, the end of two drive rolls are hinged on In car body and the two is mutually parallel, and four clamping bar components are connected to the both sides of two drive rolls, the clamping bar component Including clamping bar, connecting rod, worm gear and worm screw, the worm screw be fixedly connected on the side end of drive roll and with the drive roll Concentric, the connecting rod is hinged on the side of car body and positioned at the lower section of worm screw, and the worm gear is socketed on connecting rod and with connecting Bar is fixedly linked, and the worm gear and worm screw are adapted and are intermeshed, and the clamping bar is fixedly connected on connecting rod and positioned at two Between drive roll.

The clamp assembly includes two friction rollers, at least one cleat assembly and at least one clamping plate driving device；

The end of two friction rollers is hinged in car body and the two is mutually parallel, and the friction roller includes two Half roller and a fixing axle, are fixedly linked between two half rollers and the concentric setting of the two by fixing axle；

The clamping plate driving device includes gear, lower gear and rack, the gear be socketed the fixing axle and It is fixedly connected with fixing axle, the both ends of the rack are hinged with car body and positioned at the lower section of gear, the lower gear It is socketed the rack and is fixedly connected with rack, the gear and lower gear intermeshing；It is opened up on the rack There is external screw thread and positioned at the externally threaded oppositely oriented of lower gear both sides；

The cleat assembly includes two clamping plates, two clamping plate arms and clamping plate seat, and one end of the clamping plate arm stretches to vehicle In body and the other end extend out to the top of car body, and the Boards wall is connected to the top of clamping plate arm and positioned at clamping plate arm direction The side at car body center, the clamping plate seat is fixedly connected in car body and one end in car body is stretched into its both sides with two clamping plate arms It is hinged, key-way shape through-hole is further opened on the clamping plate arm, rack described in the key-way shape through-hole empty set and key-way shape is led to It is additionally provided with the driving nut being slidably connected with it in hole, the driving nut is adapted and mutual with the external screw thread on rack Engagement.

The walking component includes four traveling wheels for setting and being hinged in the same direction vehicle bottom.

The walking component includes eight traveling wheels for setting and being hinged in the same direction vehicle bottom.

Two traveling wheels are one group, and traveling wheel described in four groups sets up four corner positions in car body separately；

The walking component further includes four balance shafts and four counter-jibs, and same group of two traveling wheels are respectively hinged at The both ends of counter-jib, the middle part of the counter-jib are hinged by balance shaft and car body.

The present invention is in use, can first drive into failure wheel in the car body of accessory cart, then clamp event by clamp assembly Barrier wheel it is made to be relatively fixed with accessory cart so that hereafter can be stablized by several traveling wheels below car body, can The replacement failure wheel leaned on carries out short distance traveling.Herein it should be noted that：It is influenced by vehicle self-characteristic, vehicle when driving may be used The rotation of one wheel, a wheel are fixed, and therefore, there are high feasibility and the extremely wide scope of applications for this case.This case has Effect solves defect in the prior art, has good reliability, stable structure, load big, good clamping effect and need not The characteristics of external connection power source.

Description of the drawings

Fig. 1 is the use state reference chart of this case embodiment one,

Fig. 2 is the left view of Fig. 1,

Fig. 3 is partial enlarged view at the A of Fig. 2；

Fig. 4 is the use state reference chart of this case embodiment two,

Fig. 5 is the vertical view of Fig. 4；

Fig. 6 is the use state reference chart of this case embodiment three,

Fig. 7 is the vertical view of Fig. 6；

Fig. 8 is the use state reference chart of this case example IV,

Fig. 9 is the stereogram one of Fig. 8,

Figure 10 is the stereogram two of Fig. 8,

Figure 11 is the structure diagram of this case example IV,

Figure 12 is the B-B direction sectional view of Figure 11,

Figure 13 is the stereogram of Figure 11；

Figure 14 is the use state reference chart of this case embodiment five,

Figure 15 is the stereogram one of Figure 14,

Figure 16 is the stereogram two of Figure 14,

Figure 17 is the structure diagram of this case embodiment five,

Figure 18 is the vertical view of Figure 17,

Figure 19 be the C-C of Figure 18 to sectional view,

Figure 20 is the bottom view of Figure 17,

Figure 21 is the D-D of Figure 20 to sectional view；

1 is car body in figure, and 11 be guiding inclined plate, and 12 be side shield, and 13 be anticollision wheel, and 2 be walking component, and 20 be walking Wheel, 21 be balance shaft, and 22 be counter-jib；

3 be clamp assembly；

311 be wheel frictional power roller, and 312 be overturning clamping plate, and 3120 be raised line, and 313 be torsion shaft, and 314 be that unlock connects Connection member, 315 be side holding component, and 3151 be lateral clamping plate, and 3152 be spine bar, and 3153 be pawl, and 3154 be solution closing piece, 3155 be clamping plate shaft, and 3156 be turnbarrel；

321 be support roller, and 3210 be screw rod, and 322 be translation clamping plate, and 323 be synchronous belt；

331 be drive roll, and 332 be clamping bar component, and 3321 be clamping bar, and 3322 be connecting rod, and 3323 be worm gear, and 3324 be snail Bar；

341 be friction roller, and 3411 be half roller, and 3412 be fixing axle, and 342 be cleat assembly, and 3421 be clamping plate, and 3422 be folder Plate arm, 3423 be clamping plate seat, and 3424 be driving nut, and 343 be clamping plate driving device, and 3431 be gear, and 3432 be lower gear, 3433 be rack, and 344 be floatation element, and 3441 be floating buss, and 3442 be floating axle；

4 be failure wheel.

Specific embodiment

The present invention is as shown in Fig. 1-2 1, including car body 1, walking component 2 and clamp assembly 3, if the walking component 2 includes Involvement is connected on the traveling wheel 20 of 1 bottom of car body, so that car body 1 can move freely on the ground, and the clamp assembly 3 is connected to vehicle On body 1 and for clamping the failure wheel 4.In use, first failure wheel can be driven into the car body of accessory cart, then leads to Crossing clamp assembly clamping failure wheel makes it be relatively fixed with accessory cart, so that hereafter can be by several below car body Traveling wheel can be stablized, reliably failure wheel be replaced to carry out short distance traveling.Herein it should be noted that：By vehicle self-characteristic shadow Ring, vehicle when driving can wheel rotation, a wheel fix, therefore, there are high feasibilities and extremely wide for this case The scope of application.This case efficiently solves defect in the prior art, have good reliability, stable structure, load big and The characteristics of good clamping effect.

For the car body in frame structure and including front baffle, afterframe and at least two connecting tubes, two connecting tubes are parallel Setting, the front baffle are fixedly connected on the front end of connecting tube, and the afterframe is fixedly connected on the rear end of connecting tube, the company It takes over as telescopic tube.In this way so that operating personnel can easily be adjusted the entire length of car body, so as in certain model It is suitable for the failure wheel of plurality of specifications size in enclosing.

The side of the car body 1 is removably connected with guiding inclined plate 11, and the both sides of the top surface of the guiding inclined plate 11 are also It is fixedly connected with side shield 12.In this way, can it is more convenient, efficiently will failure wheel be sent into accessory cart in.In actual use Can also contact warning device be set in the top of guiding inclined plate, so as to when failure wheel is sent into accessory cart, play one Fixed reminding effect.

The guiding inclined plate includes two half guiding inclined plates being hinged.So that guiding inclined plate can be folded easily and be packed up, Convenient for storing, carrying.

The lower part of the guiding inclined plate 11 is additionally provided with tool Storage Box.So as to which the tools such as flashlight, spanner are into accommodating Storage, storage.

The side of the car body 1 is hinged with anticollision wheel 13, the root edge of the anticollision wheel 13 higher than traveling wheel 20 root edge and Anticollision wheel 13 extend out to the front end of car body 1.It is hit caused by accessory cart thus it is possible, on the one hand, ground protrusion can be reduced effectively Hit damage；On the other hand, when vehicle is climbed, the setting of anticollision wheel can play effective buffering, the effect of transition.In addition, by Car body front end is extend out to, therefore in a manner of Lengthened moment arm in anticollision wheel, effectively avoid driving of the accessory cart in movement automobile During wheel, because driving wheel have torque, and be likely to occur accessory cart overturning the problem of.

The car body 1 and clamp assembly 3 are made of engineering plastics, high-strength aluminum alloy or titanium alloy.So as to U.S. While the advantages that sight, antirust, small quality, the mechanical strength of accessory cart entirety is effectively ensured.

Several flash warning lamps are evenly equipped on the side surface of the car body 1.Thus in subsequent vehicle travel process, it is right Other vehicles play suggesting effect.

Below for the clamp assembly mentioned in this case, representative explanation is carried out with five specific embodiments：

Embodiment one：

The clamp assembly 3 includes wheel frictional power roller 311, overturning clamping plate 312, torsion shaft 313, unlock connecting elements 314 and a pair of of side holding component 315；

The end of the wheel frictional power roller 311 and torsion shaft 313 is hinged in car body 1 and the two is mutually parallel, It is described overturning clamping plate 312 it is parallel with torsion shaft 313 and overturn clamping plate 312 middle part be hinged with torsion shaft 313, it is described to turn over Turn clamping plate 312 and be equipped with a pair of of raised line 3120 backwards to a side end face of torsion shaft 313, a pair of raised line 3120 is and torsion shaft 313 both sides parallel and positioned at torsion shaft 313；

A pair of side holding component 315 is connected to the both sides of car body 1, and the unlock connecting elements 314 passes through spring The lower part of car body 1 is connected to, the side holding component 315 includes lateral clamping plate 3151, spine bar 3152, pawl 3153, unlock Block 3154 and clamping plate shaft 3155, the both ends of the clamping plate shaft 3155 are hinged in car body 1, the clamping plate shaft 3155 with Torsion shaft 313 is perpendicular and between torsion shaft 313 and wheel frictional power roller 311, the lateral clamping plate 3151 and clamping plate Shaft 3155 is parallel and its middle part is hinged with clamping plate shaft 3155, top and the unlock connection structure of the solution closing piece 3154 The end of part 314 is hinged and solves the bottom end of closing piece 3154 and is fixedly connected on the side surface of clamping plate shaft 3155, the pawl 3153 are hinged on 3154 middle part of solution closing piece and are equipped with torsional spring between solution closing piece 3154, and the spine bar 3152 is fixedly connected on side To clamping plate 3151 towards being meshed on the end face of solution closing piece 3154 and with pawl 3153.

As shown in Figs. 1-3, on the one hand, when being contacted after failure wheel is via guiding inclined plate with wheel frictional power roller, therefore Hindering wheel will enter between overturning clamping plate and wheel frictional power roller, and oppress a wherein raised line downlink under the effect of gravity, directly It is fitted on the surface of failure wheel to an other raised line, so that wheel is locked in two raised lines and wheel frictional power Between roller, it can not continue to rotate forward；On the other hand, after failure wheel enters between overturning clamping plate and wheel frictional power roller It will be collapsed in two lateral clamping plate of effect of weight lower compression to center, so as to inwardly clamp failure wheel from the both sides of failure wheel. In this way, with reference to above-mentioned 2 points, it may be such that several traveling wheels below car body can be stablized, reliably failure wheel replaced to carry out short distance Traveling.

Meanwhile when failure wheel need to be unloaded, push unlock connecting elements and be allowed to overcome acting force of the spring downlink, you can make Pawl and spine bar disengage, so as to which two lateral clamping plates release the clamping to failure wheel, then jack up vehicle can be removed assist it is small Failure wheel is repaired or replaced in vehicle.

An at least turnbarrel 3156, the lateral clamping plate 3151 and turnbarrel are socketed in the clamping plate shaft 3155 3156 are fixedly linked.

The lateral clamping plate 3151 is equipped with flexible briquetting one backwards to the end face of pawl 3153（It can be by materials such as rubber, resins Material is made）, two raised lines are made of damping material.So as to effectively promote overturning clamping plate and lateral clamping plate to failure wheel Clamping effect.

Embodiment two：

The clamp assembly 3 includes two support rollers 321 and two pairs of translation clamping plates 322, the end of two support rollers 321 Head is hinged in car body 1 and the two is mutually parallel, and is fixedly connected with respectively along it at the both sides end of the support roller 321 Screw thread is oppositely oriented on the screw rod 3210 and the screw rod 3210 of same support roller both sides axially set, the translation clamping plate 322 Lower part be socketed the screw rod 3210 and be threadedly coupled with the screw rod 3210.

As illustrated in figures 4-5, when failure wheel enters via guiding inclined plate between two support rollers, failure wheel continues to revolve Turn to drive by two support rollers and translate clamping plates to contract for totally four pieces, so as to be clamped from the both sides of failure wheel and lock failure Wheel and failure wheel will can not be rotated further under the action of support roller, so as to cause several traveling wheels below car body It can stablize, reliably failure wheel be replaced to carry out short distance traveling.

Meanwhile when failure wheel need to be unloaded, the components such as spanner rotation two screw rods can be first passed through so that two pairs of translation clamping plates Unlock, then rotate backward failure wheel, you can it is totally released two pairs of translation clamping plates；Finally, it is small to jack up the i.e. removable auxiliary of vehicle Failure wheel is repaired or replaced in vehicle.

The clamp assembly 3 further includes at least four translation bars, and the translation bar and translation clamping plate correspond, described flat It moves bar to be fixedly connected on the car body and positioned at 3210 lower section of screw rod, the bottom of the translation clamping plate is socketed the translation bar. So that translation clamping plate can only do straight reciprocating motion under the position-limiting action of translation bar.

The translation clamping plate 322 is equipped with flexible briquetting two towards a side end face of car body 1.（It can be by materials such as rubber, resins Material is made）So as to effectively promote clamping effect of the translation clamping plate to failure wheel.

Since failure wheel is before entering between two support rollers, will first be contacted with a wherein support roller, so as to cause two groups The translational movement for translating clamping plate is inconsistent, and then the problem of bring two groups of translation clamping plates inconsistent to the clamping force of failure wheel；Cause This, optimal enforcement mode, i.e., following embodiments three have been made for embodiment two：

It is linked positioned at two 321 the same side two screw rods 3210 of support roller by synchronous belt 323.

As shown in fig. 6-7, once failure wheel is contacted with a wherein support roller, and two support rollers will be synchronized and be rotated, from And ensure the consistency of two groups of translation clamping plate translational movements, so that two groups of translation clamping plates can carry out effectively failure wheel Clamping.

Example IV：

The clamp assembly 3 includes two drive rolls 331 and four clamping bar components 332, the end of two drive rolls 331 Head is hinged in car body 1 and the two is mutually parallel, and four clamping bar components 332 are connected to two drive rolls 331 Both sides, the clamping bar component 332 include clamping bar 3321, connecting rod 3322, worm gear 3323 and worm screw 3324, and the worm screw 3324 is fixed It is connected on the side end of drive roll 331 and concentric with the drive roll 331, the connecting rod 3322 is hinged on car body 1 Side and the lower section for being located at worm screw 3324, the worm gear 3323 are socketed on connecting rod 3322 and are fixedly linked with connecting rod 3322, The worm gear 3323 and worm screw 3324 are adapted and are intermeshed, and the clamping bar 3321 is fixedly connected on connecting rod 3322 and position Between two drive rolls 331.

As shown in figures 8-13, when failure wheel enters via guiding inclined plate between two support rollers, the continuation of failure wheel Rotation drives clamping bar to do upward flip-flop movement around connecting rod, thus from the both sides of failure wheel by by the effect of worm and gear It clamps and locks failure wheel, and failure wheel will can not continue to rotate forward under the action of two drive rolls, so as to make Obtaining several traveling wheels below car body can stablize, reliably failure wheel be replaced to carry out short distance traveling.

Meanwhile when failure wheel need to be unloaded, the components pivot link such as spanner can be first passed through so that two pairs of clamping bar unlocks； Failure wheel is rotated backward again, you can is totally released two pairs of clamping bars；Finally, it jacks up vehicle and accessory cart can be removed, to failure Wheel is repaired or replaced.

The clamping bar component further includes a pair of links hinged seat, and a pair of connecting rod hinged seat is fixedly connected in car body It side and is socketed on connecting rod, a pair of connecting rod hinged seat sets up separately in the both sides of worm gear.

The clamping bar is equipped with flexible briquetting four towards a side end face of car body.（It can be made of materials such as rubber, resins） So as to effectively promote clamping effect of the clamping bar to failure wheel.

Embodiment five：

The clamp assembly 3 includes two friction rollers 341, at least one cleat assembly 342 and the driving of at least one clamping plate Device 343；

The end of two friction rollers 341 is hinged in car body 1 and the two is mutually parallel, and the friction roller 341 wraps Include two and half rollers 3411 and a fixing axle 3412, be fixedly linked between two half rollers 3411 by fixing axle 3421 and The concentric setting of the two；

The clamping plate driving device 343 includes gear 3431, lower gear 3432 and rack 3433, the gear The 3431 socket fixing axles 3412 and be fixedly connected with fixing axle 3412, the both ends of the rack 3433 with 1 phase of car body Lower section hinged and positioned at gear 3431, the lower gear 3432 are socketed the rack 3433 and consolidate with rack 3433 Fixed connection, the gear 3431 and lower gear 3432 are intermeshed；External screw thread is offered on the rack 3433 and is located at 3432 both sides of lower gear it is externally threaded oppositely oriented；

The cleat assembly 342 includes two clamping plates, 3421, two clamping plate arms 3422 and clamping plate seat 3423, the clamping plate arm 3422 one end is stretched in car body 1 and the other end extend out to the top of car body 1, and the clamping plate 3421 is fixedly connected on clamping plate The top of arm 3422 and positioned at side of the clamping plate arm 3422 towards 1 center of car body, the clamping plate seat 3423 is fixedly connected on car body One end that in 1 and its both sides are stretched into two clamping plate arms 3422 in car body 1 is hinged, and key is further opened on the clamping plate arm 3422 Slit-like through-holes are additionally provided in rack 3433 described in the key-way shape through-hole empty set and key-way shape through-hole and to be slidably connected with it Nut 3424 is driven, the driving nut 3424 is adapted and is intermeshed with the external screw thread on rack 3433.

As illustrated in figs. 14-21, when rack rotates, driving nut will be driven to do straight reciprocating motion along rack, from And by key-way shape by applying the power outwardly or inwardly swung to clamping plate arm, finally to drive clamping plate with clamping plate arm and clamping plate seat Hinge joint do pendulum motion outwardly or inwardly for the center of circle.

Therefore, after failure wheel enters via guiding inclined plate between two friction rollers, the rotation that continues of failure wheel will drive Dynamic two friction rollers rotation, so as to be rotated by upper and lower gear band moving gear bar, so that totally four clamping plates are in the band of clamping plate arm It is close to failure wheel under dynamic, and be finally completed the clamping lateral to failure wheel and lock, and simultaneous faults wheel also will It is influenced not continuing to rotate forward by the reaction force of two friction rollers, so as to so that several traveling wheels below car body can be steady It is fixed, reliable that failure wheel is replaced to carry out short distance traveling.

Meanwhile when failure wheel need to be unloaded, the components rotate gear bar such as spanner can be first passed through so that at least a pair of of clamping plate Unlock, then rotate backward failure wheel, you can it is totally released whole clamping plates；Finally, it jacks up vehicle and accessory cart can be removed, it is right Failure wheel is repaired or replaced.

Operating personnel also found in actual use, and level, pavement behavior and body sway angle are driven by person for driving a car Etc. factors influence, when failure wheel enter two friction rollers between when, failure axletree to midpoint very likely with friction roller Midpoint is inconsistent, and so as to cause two clamping plates in same cleat assembly, only there are one be in contact with failure wheel（Failure wheel exists It can not be axially translated under the influence of frictional force and automobile self structure）Though in this way, can also be clamped to failure wheel, Its clamping configuration is unstable, clamping effect is poor and clamping force is small.Therefore, following improved technology scheme is also additionally arranged in this case：

The both ends of the rack 3433 are hinged by floatation element 344 and car body 1, and the floatation element 344 wraps Floating buss 3441 and floating axle 3442 are included, the floating axle 3442 is fixedly connected in car body 1 and between rack 3433 There are gap, the floating buss 3441 is fixedly connected on described in floating axle 3442 towards one end of rack 3433 and socket Rack 3433.In this way so that cleat assembly（In addition to clamping plate seat）, rack and lower gear can along rack it is axial from By reciprocating motion（Peak exercise for two gaps length and）, thus when only a clamping plate is contacted with failure wheel, Being rotated further for failure wheel will drive rack and clamp assemblies integral translation, so that another in the clamp assemblies Clamping plate continuation is close towards failure wheel, until two clamping plates are bonded and clamp failure wheel, that is, effectively improves clamp assembly pair event Hinder the clamping force and clamping effect of wheel, and play the effect of automatic centering.

Its secondary centering in actual use（Side shield by guiding inclined plate and thereon carries out for the first time）Effect is fabulous, And the clamping stability and bearing stability of failure wheel are obtained significantly being promoted after centering.

The clamping plate is equipped with flexible briquetting five towards a side end face of car body.（It can be made of materials such as rubber, resins） So as to effectively promote clamping effect of the clamping plate to failure wheel.

The walking component 2 includes four traveling wheels 20 for setting and being hinged in the same direction 1 bottom of car body.So that auxiliary Trolley can freely walk on the ground.

The walking component 2 includes eight traveling wheels 20 for setting and being hinged in the same direction 1 bottom of car body.So that auxiliary Trolley more more shares out equally load in load by eight traveling wheels, so as to effectively reduce the load of single traveling wheel, While extending traveling wheel service life, the stability of accessory cart entirety is effectively improved.

Two traveling wheels 20 are one group, and traveling wheel 20 described in four groups sets up four corner positions in car body separately；

The walking component 2 further includes four balance shafts 21 and four counter-jibs 22, and same group of two traveling wheels 20 divide It is not hinged on the both ends of counter-jib 22, the middle part of the counter-jib 22 is hinged by balance shaft 21 with car body（Actual production adds Balance shaft and floating axle can be set as the same part by working hour, to reduce production cost, lifting means globality）.In this way, in face During to potted road surface, two traveling wheels and counter-jib in single group can freely be overturn around balance shaft, so as to effectively improve walking Compactness between wheel and ground so that accessory cart is replacing failure wheel more steady, reliable when driving.

Slave device on the whole for, this case also has the characteristics that：

First, the selection of car body and clamp assembly material（It is made of engineering plastics, high-strength aluminum alloy or titanium alloy）Have The advantages such as light weight, structural strength are high, small and space occupancy rate is low, so that accessory cart can be stored up easily Deposit or guide and support transhipment.

2nd, since car body entire length is adjustable, the wheel of plurality of specifications, adaptability can be adapted in a certain range By force, using effect is good.

3rd, due to guiding inclined plate have the characteristics that it is folding, store when space occupancy rate it is extremely low and It guides and supports also very convenient during transhipment.

4th, the clamp assembly of this case only simply, can be realized efficiently without external connection power source by the rotation of failure wheel The locking of failure wheel, it is very convenient and without additional energy.

5th, for the wheel of automobile by driving wheel or driven wheels into when driving wheel breaks down, first passing through disabled vehicle The active rotation of wheel causes clamp assembly to lock it, recycles the structure feature of automobile itself " differential mechanism " so that automobile can Continue " normally travel "；And when driven wheel breaks down, using auxiliary tool（Spanner, crank etc.）Or it can be manually rotated disabled vehicle The locking of clamp assembly can be completed in wheel, has the characteristics that using effect is good and stability is good.

6th, it is measured through those skilled in the art's actual use, the accessory cart of this case can be at three minutes（What is repeatedly measured is flat Mean value）Interior completion accessory cart is by being fetched into the process installed, with operation is simple, operating efficiency is high and quick The features such as reliable.

Claims (5)

1. a kind of accessory cart for movement failure wheel, which is characterized in that including car body, walking component and clamp assembly, The walking component includes several traveling wheels for being connected to vehicle bottom, so that car body can move freely on the ground, the folder Tight component connection is on the car body and for clamping the failure wheel；

The clamp assembly includes wheel frictional power roller, overturning clamping plate, torsion shaft, unlock connecting elements and a pair of of side holding Component；

The end of the wheel frictional power roller and torsion shaft is hinged in car body and the two is mutually parallel, the overturning folder Plate it is parallel with torsion shaft and overturning clamping plate middle part be hinged with torsion shaft, it is described overturn clamping plate backwards to the side of torsion shaft End face is equipped with a pair of of raised line, and a pair of raised line is parallel with torsion shaft and is located at the both sides of torsion shaft；

A pair of side holding component is connected to the both sides of car body, and the unlock connecting elements is connected to car body by spring Lower part, the side holding component include lateral clamping plate, spine bar, pawl, solution closing piece and clamping plate shaft, and the two of the clamping plate shaft End is hinged in car body, and the clamping plate shaft and torsion shaft are perpendicular and between torsion shaft and wheel frictional power roller, The lateral clamping plate is parallel with clamping plate shaft and its middle part is hinged with clamping plate shaft, the top of the solution closing piece and unlock The end of connecting elements is hinged and solves the bottom end of closing piece and is fixedly connected on the side surface of clamping plate shaft, and the pawl is hinged Torsional spring is equipped in the middle part of solution closing piece and between solution closing piece, the spine bar is fixedly connected on lateral clamping plate towards the end of solution closing piece It is meshed on face and with pawl.

2. a kind of accessory cart for movement failure wheel according to claim 1, which is characterized in that the car body Side is hinged with anticollision wheel, and the root edge of the anticollision wheel extend out to the front end of car body higher than the root edge and anticollision wheel of traveling wheel.

A kind of 3. accessory cart for movement failure wheel according to claim 1, which is characterized in that the walking group Part includes four traveling wheels for setting and being hinged in the same direction vehicle bottom.

A kind of 4. accessory cart for movement failure wheel according to claim 1, which is characterized in that the walking group Part includes eight traveling wheels for setting and being hinged in the same direction vehicle bottom.

A kind of 5. accessory cart for movement failure wheel according to claim 4, which is characterized in that two rows It is one group to walk wheel, and traveling wheel described in four groups sets up four corner positions in car body separately；

The walking component further includes four balance shafts and four counter-jibs, and same group of two traveling wheels are respectively hinged at balance The both ends of arm, the middle part of the counter-jib are hinged by balance shaft and car body.