CN204821510U - Automobile -used snow day antiskid actuating mechanism - Google Patents

Abstract

The utility model relates to an automobile -used safe emergency device, specific automobile -used snow day antiskid actuating mechanism that says so. This actuating mechanism includes the mat case, pulls out bolt subassembly and mat recovery subassembly, the bolt subassembly setting of pulling out hug closely the adoption bolt fastening with the mat case directly over the mat case, the mat retrieve the subassembly setting and hug closely with plug round pin subassembly at the rear of plug round pin subassembly and adopt dull and stereotyped bolt fastening. An automobile -used snow day antiskid utilizes the slipmat to produce the resistance, makes the vehicle can produce big resistance much than before when the emergency brake, and does not hinder the vehicle to require the slight drag when going. The utility model discloses the effectual control slipmat of ability, the emergence of greatly having solved snow day accident.

Description

Automobile-used snowy day shoe executing agency

Technical field

The utility model is related to a kind of vehicle safety emergency set, specifically a kind of automobile-used snowy day shoe executing agency.

Background technology

Traffic safety refer to people on road carry out activity, play, the casualties phenomenon of generation.According to the regulation of traffic law, safely drive a vehicle, walk, it is to avoid occur personal injury or damage to property.Every year all can a large amount of personnel of, disability lethal because of traffic accident, property loss is even more an astronomical figure.For the Northeast, the traffic accident occurred every year due to snowy day road cunning is even more of common occurrence.Snowy day vehicle driving safety how is improved, is the current thorny problem for being badly in need of solving.It is necessary this problem to be dissected and solved as " automobile people ".

Existing vehicle limited slip technology：

● ABS (anti-lock braking system)

ABS is Anti-LockBrakeSystem english abbreviation, i.e. anti-lock braking system.ABS reaches the control to wheel lock up by the folding and unfolding of control brake oil pressure.Its course of work is actually the circulation of locking-release-locking-release, vehicle is in the gap rolling condition of critical locking all the time.

● EBD (electronic braking force distribution)

EBD English full name is ElectricBrakeforceDistribution, i.e. EBD.In the case of emergency brake wheel lock up, EBD has just balanced effective earth-grasping force of each wheel before ABS actions, can prevent whipping and sideslip, and shorten automobile brake distance.EBD is actually ABS miscellaneous function, and it can improve the effect for improving ABS.So ABS and EBD is often while configuration.The how configured ABS+EBD of current most domestic vehicle.

● TRC (tracking antiskid control system)

TRC operation principle is still similar to TCS and ASR, and simply each manufacturer has any different on the call of technology.TRC can suppress the idle running of vehicle driving wheel when wet-skid road surface is started to walk with accelerating, when starting or acceleration, if detecting driving wheel idle running, the braking oil pressure of driving wheel and the power output of engine will be controlled, it is ensured that optimal starting, acceleration, straight line traveling and the security turned.

● non-skid tyre

Current major tire plant commercial cities develop snow tire, and cardinal principle is to set some attachments to increase the frictional force of tire and ground by the change of tread contour and on tyre surface, so as to prevent wheel-slip.

But the problem of these systems are wheel sideslip when solving brake, or can only use under particular circumstances, and with high costs, design and installation is more using program, troublesome poeration, and not from substantially reducing braking distance.And for non-skid tyre, practical popular style can only use in certain circumstances, smaller resistance is needed in usually highway up train, so can not equip always as emergency set than relatively low.

The content of the invention

The utility model provides a kind of simple in construction, the emergent shoe executing agency of economic and practical automobile-used snowy day, solve prior art and there is the problem of no substance shortens braking distance, the utility model produces resistance using slipmat, enable the original much bigger resistance of vehicle producing ratio in emergency brake, and without prejudice to vehicle requires slight drag in motion.So greatly solve the generation of snowy day accident.

Technical solutions of the utility model are described with reference to the drawings as follows：A kind of automobile-used snowy day shoe executing agency, the executing agency includes mat case, plug pin assemblies and mat and reclaims component；Described plug pin assemblies are arranged on the surface of mat case and mat case is close to fix using bolt；It is close to fix using flat board bolt with plug pin assemblies in the rear that described mat recovery component is arranged on plug pin assemblies.

Described mat case includes sliding axle 2, rectangle steel disc 4, spring 9 and box body 6；Described sliding axle 2, rectangle steel disc 4, spring 9 are placed in box body 6；Described sliding axle 2 runs through one end of slipmat 3；The described left-right and front-back of box body 6 has fluting；The upper/lower terminal of described box body 6 is provided with the outlet 10 glided below hole 15, the front end of box body 6 for slipmat 3；Described spring 9 has two, is individually positioned in the lower end arranged on left and right sides of slipmat 3, and the upper end of spring 9 is connected on sliding axle 2, and the lower end of spring 9 is connected at the outlet of slipmat 3 10 on box body 6；Described rectangle steel disc 4 is fixedly connected with the upper end level of slipmat 3, a hole that can match with pin is provided with thereon, front end is fixed with light barrier 5；There is No. 1 be connected in slipmat 3 a neck 1 lower section of described sliding axle 2；There are No. 2 necks lower end of described box body 6 at the outlet of slipmat 3 10100mm；Described No. 1 neck 1 and No. 2 necks is relative and can interfix.

There is sensor in described mat case, be in the light groove；Position where when being in the light groove end usually being fixed in slipmat 3, light barrier 5 when device does not work in slipmat 3, which is located at, to be in the light in groove.

No. 1 described neck 1 is that the mutual steel discs in 90 ° of 15mm are constituted by two length.

No. 2 described necks 2 are that the mutual steel discs in 90 ° of 15mm are constituted by two length.

Described plug pin assemblies include No. 1 bevel gear 12, No. 2 bevel gears 13 and stepper motor 11；Described No. 1 bevel gear 12, No. 2 Vertical Meshings of bevel gear 13；One end that described stepper motor 11 is arranged on No. 1 bevel gear 12 is connected with No. 1 axle of bevel gear 12；The described centre of No. 2 bevel gears 13 is threadedly coupled for helicitic texture and with worm screw 14；The described lower end non-threaded of screw rod 14, screw rod 14 it is lower rectify to be exactly box body 6 bottom hole and rectangle steel disc 4 on hole.

Described mat, which reclaims component, includes No. 1 spur gear 17, No. 2 spur gears 18, rotating shaft (16) and straight motor 19；Described No. 1 spur gear 17, No. 2 levels of spur gear 18 engagements；Described direct current generator 19 sets No. 2 upper ends of spur gear 18 to use spline connection with spur gear 18；Described rotating shaft 16 is located at directly over tire, the center in box body 6, in the position somewhat more rearward of sliding axle 2；Rotating shaft 16 is connected with No. 1 axle of spur gear 17；There is two depth 7mm annular groove thereon, the groove is wrapped steel wire rope, and two steel wire ropes are connected with the left and right end of slipmat 3 respectively, steel wire rope tenses slipmat 3 when fixed, slipmat 3 is fixed in mat case.

The beneficial effects of the utility model are：

It 1. is swift in response., being capable of fast reaction using such device.The present apparatus uses spring structure, when driver sends brake hard, extracts after pin, spring discharges rapidly elastic potential energy.Spring contraction, pulls slipmat to move downward, this device is shorter than the mechanical transmission structure response time, and reliability is higher.

2. it is accurate.After driver sends emergency brake signal, because electronics box body has two gathering sills in left and right, so mat can be run when moving downward according to specific path, while less by extraneous interference, mat can be entered fast and accurately under tire.

3. the resistance produced is big.Because the design of slipmat is to strengthen the material and structure of frictional force, so producing frictional force when producing remote super tyre braking system between the mat energy of frictional force and ground instead of tire, it can brake more rapidly car.

4. car sideslip during brake can be prevented.In view of the original intention of ABS system during mat designs, so the side that mat is close into wheel is designed to frictional force very small material, rear wheel is set to be unlikely to locking.And conclusion of the side of mat and ground contact according to obtained by experiment is come the arrangement form of design arrangement pin, car is set to be unlikely to produce the situation of sideslip in jerk.

5. can recycle, with low cost, popularization is high.Mat can also be reclaimed by the retracting device mutual cooperation moved backward with mat after brake hard, for the braking of next time.Recycled for multiple times is realized, material can also be saved while cost is reduced, the industrial target of development green is realized.Whole device is very low compared to the cost of the emergency stop device of other high-end vehicles, is conducive to popularization, and simple in construction and can be relatively reliable on a large scale, fundamentally shortens braking distance, realize snowy day brake hard, effect is very good.

Brief description of the drawings

Fig. 1 is slipmat overall structure diagram；

Fig. 2 is slipmat rubber undersurface layer steel nail arrangement mode schematic diagram；

Fig. 3 is slipmat steel stud frame schematic diagram；

Fig. 4 is the utility model mat case and slipmat assembling schematic diagram；

Fig. 5 is No. 1 neck of the utility model and slipmat assembling schematic diagram；

Fig. 6 is the utility model mat case structural representation；

Fig. 7 is the utility model plug pin assemblies structural representation；

Fig. 8 is that the utility model mat reclaims component elevational schematic view；

Fig. 9 is that the utility model mat reclaims component schematic front view；

Figure 10 is electrical control system structure block diagram；

Figure 11 is single-chip minimum system schematic diagram；

Figure 12 is stepper motor driving circuit schematic diagram；

Figure 13 is direct current motor drive circuit schematic diagram；

Figure 14 is position detecting circuit schematic diagram；

Figure 15 is electric-control system integrated circuit schematic diagram.

Embodiment

A kind of anti-skidding emergency set of automobile-used snowy day, when installing the present invention, lappet changes the larger material of rigidity such as steel plate or carbon fiber board into, and the device then is fixed by bolts into lappet top.The device includes slipmat 3, executing agency and electric-control system；Described slipmat 3 is fixed in the mat case of executing agency, and usually mat is fixed by the tension of steel wire rope；Described electric-control system is electrically connected with executing agency, and electric-control system can be integrally placed in a box, and box is bolted to the surface of mat case, is fixed because vehicle difference can do different fixation steelframes.

Refering to Fig. 1, Fig. 2, Fig. 3, the slipmat 3 includes stainless steel upper surface layer 301, carbon steel layer 302 and rubber undersurface layer 303, described stainless steel upper surface layer 301 and connected mode of the carbon steel layer 302 using welding successively；Described carbon steel layer 302 and the selection Nitrile butadiene rubber adhesive bonding of rubber undersurface layer 303；Finally four Ge Jiaohe centers of stainless steel upper surface layer 301, carbon steel layer 302 and rubber undersurface layer 303 are further connected and fixed with snap rivet GB/T867-19862.

Described stainless steel upper surface layer 301 uses stainless steel and tire interface, so that friction factor is minimum between tire after slipmat ejection during brake hard.

The rubber lower surface 303 contacted with ground inlays the structure of steel nail 304 using rubber surface, to realize that friction factor reaches great level between slipmat and ice face, the relation for showing that edge nail length, arrangement mode and density and friction factor and vehicle brake degrees of offset is tested by ice face, and then slipmat rubber undersurface layer 303 is designed as steel nail length 55mm, 3/dm of arranging density³, while arrangement mode is preceding arrow alignments, pin line and tire axis are into 40 ° of angles；In cone below pin, the conical surface is with the horizontal 35 ° of angles when vertical.Hardness and the larger carbon steel layer 302 of intensity are then used in stainless steel upper surface layer 301, the center section of rubber undersurface layer 303 so that lower surface edge nail will not be damaged caused by reaction force is to tire in braking procedure, while ensureing that slipmat is not pulled off.

Refering to Fig. 4-Fig. 9, executing agency of the invention includes mat case, plug pin assemblies and mat and reclaims component；Described plug pin assemblies are arranged on the surface of mat case and mat case is close to fix using bolt；The rear that described mat recovery component is arranged on plug pin assemblies is close to fix using flat board bolt with plug pin assemblies, and bolt model M10*1.25*50, performance rate uses GB/T3098.1-2010 for 9.8 grades), material is medium carbon steel, quenches and is tempered.

Refering to Fig. 4, Fig. 9, described mat case includes sliding axle 2, rectangle steel disc 4, spring 9 and box body 6；Described sliding axle 2, rectangle steel disc 4, spring 9 are placed in box body 6；Described sliding axle 2 is the bar of a metal material, it is desirable to which rigidity greatly, can guarantee that and bear great pulling force, through one end of slipmat 3.

Refering to Fig. 6, described box body 6 is the general composition of the metal material with some strength and the equiform box body of vehicle wheel eyebrow, left-right and front-back has fluting, two layers above and below being divided into during processing, each layer will leave boss at corner, when so having assembled, it will be automatically formed with the matching chute 7 of sliding axle 2, the guiding for pulling out and withdrawing for mat.The upper and lower ends of described box body 6 are provided with the outlet 10 glided below hole 15, the front end of box body 6 for slipmat 3, and upper and lower surface requires very smooth, to ensure the normal downslide and recovery of slipmat 3.Box body 6 can do appropriate adjustment according to the size in the space at lappet liner above vehicle and wheel.

Refering to Fig. 5, Fig. 6, described spring 9 has two, it is i.e. left and right each one, for high-performance cylindrical helical spring, the lower end arranged on left and right sides of slipmat 3 is individually positioned in, the upper end of spring 9 is connected on sliding axle 2, the lower end of spring 9 is connected at the outlet of slipmat 3 10 on box body 6, and elongated condition is in when described spring 9 is flat；The size of described rectangle steel disc 4 is 100mm × 100mm, and rectangle steel disc 4 is fixedly connected with the upper end level of the carbon steel layer 302 of slipmat 3, and a hole that can match with pin is provided with thereon；There is No. 1 be connected in slipmat 3 a neck 1 lower section of described sliding axle 2；There are No. 2 necks being made up of a width of 15mm two panels steel disc the lower end of described box body 6 at the outlet of slipmat 3 10100mm；Described No. 1 neck 1 and No. 2 necks is relative and can interfix.

Refering to Fig. 4, there is pin-and-hole on described rectangle steel disc 4, front end is fixed with light barrier 5.There is sensor in described mat case, be in the light groove；Position where when being in the light groove end usually being fixed in slipmat 3, light barrier 5 when device does not work in slipmat 3, which is located at, to be in the light in groove.

No. 1 described neck 1 is that the mutual steel discs in 90 ° of 15mm are constituted by two length.

No. 2 described necks 2 are that the mutual steel discs in 90 ° of 15mm are constituted by two length.

Refering to Fig. 7, described plug pin assemblies include No. 1 bevel gear 12, No. 2 bevel gears 13 and stepper motor 11；Described No. 1 bevel gear 12, No. 2 Vertical Meshings of bevel gear 13；One end that described stepper motor 11 is arranged on No. 1 bevel gear 12 is connected with No. 1 axle of bevel gear 12；The described centre of No. 2 bevel gears 13 is threadedly coupled for helicitic texture and with worm screw 14；The described lower end non-threaded of screw rod 14, therefore can be considered pin, pin it is lower rectify to be exactly box body 6 bottom barrel band hole and the pin-and-hole of rectangle steel disc 4.

Refering to Fig. 8, Fig. 9, described mat, which reclaims component, includes No. 1 spur gear 17, No. 2 spur gears 18, rotating shaft (16) and straight motor 19；Described No. 1 spur gear 17, No. 2 levels of spur gear 18 engagements, No. 1 spur gear 17, No. 2 gears of spur gear 18 take standard module 2.5mm, and the number of teeth 27, material is No. 45 steel, using modifier treatment, tooth face hardness 240HBS.Described direct current generator 19 sets No. 2 upper ends of spur gear 18 to use spline connection, spline model 6-26*23*6 with spur gear 18.Described rotating shaft 16 is located at directly over tire, the center in box body 6, in the position somewhat more rearward of sliding axle 2.Rotating shaft 16 is connected with No. 1 axle of spur gear 17；There is two depth 7mm annular groove thereon, the groove is wrapped the steel wire rope of softness, and two steel wire ropes are connected with the left and right end of slipmat 3 respectively, and steel wire rope tenses slipmat when fixed, slipmat 3 is fixed in mat case.

Refering to Figure 10-Figure 15, electric-control system of the invention includes single-chip minimum system, drive circuit and position detecting circuit；Wherein described drive circuit includes stepper motor driving circuit and direct current motor drive circuit；Single-chip microcomputer in described single-chip minimum system is electrically connected with the output end of the stepper motor pin in stepper motor driving circuit, the direct current generator pin of direct current motor drive circuit and position detecting circuit.

Refering to Figure 11, described single-chip minimum system also includes crystal oscillating circuit, reset circuit；Described two output ends of crystal oscillating circuit and X1, X2 pin of single-chip microcomputer are connected；Described reset circuit is connected with single-chip microcomputer RESET pins.

Above-mentioned single-chip microcomputer selects model AT89C52, AT89C52 is a low-voltage, 8 single-chip microcomputers of high-performance CMOS, piece include 8kbytes can erasable Flash read-only program memories and 256bytes repeatedly Random Access Data storage RAM, device uses the high density of atmel corp, nonvolatile storage technologies production, compatibility standard MCS-51 instruction systems, 8 central processing units of piece built-in general-purpose and Flash memory cell.

Refering to Figure 12, described stepper motor driving circuit includes four phase step motor, model ULN2003 driving chip；The pin of described four phase step motor connects ULN2003 output pin C1~C4 respectively, and ULN2003 input pin 1B~4B is respectively coupled to P1.0~P1.3 pins of single-chip microcomputer.

Stepper motor selects model 28BYJ48 type four phase eight beat motors, and voltage is DC5V-DC12V.

28BYJ48 stepper motors are a kind of by executing agency of the electroporation for angular displacement.When step actuator receives a pulse signal, it rotates a fixed angle (and stepping angle) with regard to Driving Stepping Motor by the direction of setting.

Stepper motor driver chip model ULN2003, ULN2003 are high withstand voltage, high current Darlington array, are made up of seven silicon NPN Darlingtons.ULN2003 is large driven current density array, is used in the control circuit such as single-chip microcomputer, intelligence instrument, PLC, digital output card.Relay even load can be directly driven.ULN2003 operating voltages are high, and operating current is big, and sink current can bear 50V voltage up to 500mA in OFF state, and output can also parallel be run in high load currents.

Refering to Figure 13, described direct current motor drive circuit includes triode, resistance, power supply, diode and direct current generator；The base stage of described triode is connected to single-chip microcomputer P2.0 pins by a resistance R3, and the emitting stage connection power supply of triode, the colelctor electrode of triode is grounded by a diode；Described relay and diodes in parallel, the output series direct current motor of relay.The input of the P2.0 pins connection direct current motor drive circuit of single-chip microcomputer is the base stage of triode, and triode is used for driving relay to work, and the break-make of control relay realizes the control rotated to direct current generator with stopping.Using the DC speed-reducing of the high-power high pulling torque of relay driving, common integrated drive chips can be avoided to drive the shortcoming of heavy load, it is adaptable to the system.

Refering to Figure 14, described position detecting circuit includes amplifier, variable resistor, power supply, photoelectric sensor, light emitting diode；The colelctor electrode of triode in the P2.1 pins of the output connection single-chip microcomputer of described amplifier, the in-phase input end connection photoelectric sensor of amplifier, the inverting input of amplifier connects power supply by a variable resistor；The positive pole of light emitting diode connects power supply, light emitting diode negative pole ground connection in the emitting stage ground connection of triode, photoelectric sensor in described photoelectric sensor；Two other described light emitting diode, one is connected between power supply and amplifier output, and one is connected between power supply and ground.The delivery outlet of the P2.1 mouths link position detection circuit of single-chip microcomputer is the input of integrated slot optical coupling sensor assembly, the utility model uses existing integrated slot optical coupling sensor, high level is exported when blocking, low level is exported when unobstructed, output state can show that during output low level, indicator lamp is lighted by indicator lamp, when exporting high level, indicator lamp extinguishes.

The operation principle of the present invention is as follows：

When vehicle traveling is on snowfield, it is prominent to meet emergency, when needing fast braking, driver needs to press emergency stop button key S3, when the single-chip microcomputer in electric-control system receives this signal, single-chip microcomputer P3.0 pins are changed into low level, when it is low that single-chip microcomputer, which inquires P3.0, single-chip microcomputer makes the stepper motor 11 in plug pin assemblies just turn around by the P1 mouthfuls of corresponding pulse trains of output to stepper motor driver chip ULN2003, No. 1 bevel gear 12 is driven to start rotation, so as to drive No. 2 bevel gears 13 to start rotation；Because the center of No. 2 bevel gears 13 is helicitic texture, and the screw thread of the top half of screw rod 14 is engaged, and makes the motion upwards of screw rod 14 by helicitic texture, screw rod 14 is extracted from the hole 15 of box body 6, so that the rectangle steel disc 4 of the upper end of slipmat 3 is also departing from screw rod 14；Under the drive of the power of the retraction of spring 9, slipmat 3 starts to move downward.The lower end of slipmat 3 comes out from box body 6, meeting natural torsion when the front end of slipmat 3 is contacted to earth, because the natural shape of slipmat 3 is that have certain flexibility, so slipmat 3 can smoothly bend towards the side of wheel 8 very much in more smooth ice face, when slipmat 3 all comes out due to the motion of wheel 8, wheel can be pressed in slipmat 3, together with No. 1 neck 1 of upper end is mutually stung with the neck of box body 6 when the total movement of slipmat 3 comes out, and make the stop motion of slipmat 3.The outside of slipmat 3 and road surface realize big resistance friction, now complete emergency stop, and brake can be completed in very short distance.The very big power produced when towing is mainly transferred in the carbon steel layer 302 of box body 6 and big resistance slipmat 3 by two necks.

, it is necessary to when reclaiming slipmat 3 after emergency releasing, when pressing recovery and building S4, single-chip microcomputer P3.1 pins are changed into low level, single-chip microcomputer exports a low level to relay by P20 mouthfuls, makes relay adhesive, passes through reversing, invert wheel 8, the rotating speed of rotating speed and wheel 8 is adapted, low-speed running.No. 1 spur gear 17 is driven to rotate by No. 2 spur gears 18, then rotating shaft 16 is driven to start rotation, the rotation of rotating shaft 16 starts to roll up soft steel wire rope, steel wire rope pulls end in slipmat 3 to move upwards, when slipmat 3 moves to final position, light barrier 5 in picking sensor can enter being in the light in groove of sensor, produce a signal, 11 1 instructions of stepper motor of plug pin assemblies are transmitted to after being received by single-chip microcomputer, stepper motor 11 is inverted, pass through No. 2 bevel gears 13, move downward screw rod 14, pin-and-hole on into upper end and the hole of box body 6 15 and rectangle steel disc 4, fixed slipmat 3, when slipmat 3 goes back to initial position, groove type photoelectric switch TLP521 light is blocked, a high level is exported to single-chip microcomputer, single-chip microcomputer is received after this signal, on the one hand control P20 outputs high level disconnects relay, control direct current generator 19 stops operating, on the other hand exporting corresponding pulse trains by P1 mouthful makes that stepper motor 11 is counter to turn around to the driving chip of stepper motor 11, now the emergency processing of whole emergency set is completed.

Claims (7)

1. a kind of automobile-used snowy day shoe executing agency, it is characterised in that the executing agency includes mat case, plug pin assemblies and mat and reclaims component；Described plug pin assemblies are arranged on the surface of mat case and mat case is close to fix using bolt；It is close to fix using flat board bolt with plug pin assemblies in the rear that described mat recovery component is arranged on plug pin assemblies.

2. a kind of automobile-used snowy day shoe executing agency according to claim 1, it is characterised in that described mat case includes sliding axle（2）, rectangle steel disc（4）, spring（9）And box body（6）；Described sliding axle（2）, rectangle steel disc（4）, spring（9）It is placed in box body（6）It is interior；Described sliding axle（2）Through slipmat（3）One end；Described box body（6）Left-right and front-back has fluting；Described box body（6）Upper/lower terminal be provided with hole（15）, box body（6）Front end below be slipmat（3）The outlet of downslide（10）；Described spring（9）There are two, be individually positioned in slipmat（3）Lower end arranged on left and right sides, spring（9）Upper end is connected in sliding axle（2）On, spring（9）Lower end be connected in box body（6）On slipmat（3）Outlet（10）Place；Described rectangle steel disc（4）With slipmat（3）Upper end level be fixedly connected, be provided with thereon one can with pin match hole, front end is fixed with light barrier（5）；Described sliding axle（2）Lower section there is one to be connected in slipmat（3）On No. 1 neck（1）；Described box body（6）Lower end close to slipmat（3）Outlet（10）There are No. 2 necks at 100mm；No. 1 described neck（1）It is relative with No. 2 necks and can interfix.

3. a kind of automobile-used snowy day shoe executing agency according to claim 2, it is characterised in that have sensor in described mat case, be in the light groove；Groove be in the light in slipmat（3）Position where when upper end is usually fixed, slipmat when device does not work（3）On light barrier（5）Positioned at being in the light in groove.

4. a kind of automobile-used snowy day shoe executing agency according to claim 2, it is characterised in that No. 1 described neck（1）It is that the mutual steel discs in 90 ° of 15mm are constituted by two length.

5. a kind of automobile-used snowy day shoe executing agency according to claim 2, it is characterised in that No. 2 described necks（2）It is that the mutual steel discs in 90 ° of 15mm are constituted by two length.

6. a kind of automobile-used snowy day shoe executing agency according to claim 1, it is characterised in that described plug pin assemblies include No. 1 bevel gear（12）, No. 2 bevel gears（13）And stepper motor（11）；No. 1 described bevel gear（12）, No. 2 bevel gears（13）Vertical Meshing；Described stepper motor（11）It is arranged on No. 1 bevel gear（12）One end and No. 1 bevel gear（12）Axle is connected；No. 2 described bevel gears（13）Centre is helicitic texture and and worm screw（14）Threaded connection；Described screw rod（14）Lower end non-threaded, screw rod（14）It is lower rectify to be exactly box body（6）Bottom hole and rectangle steel disc（4）On hole.

7. a kind of automobile-used snowy day shoe executing agency according to claim 1, it is characterised in that described mat, which reclaims component, includes No. 1 spur gear（17）, No. 2 spur gears（18）, rotating shaft (16) and straight motor（19）；No. 1 described spur gear（17）, No. 2 spur gears（18）Level is engaged；Described direct current generator（19）No. 2 spur gears are set（18）Upper end and spur gear（18）Using spline connection；Described rotating shaft（16）Directly over tire, in box body（6）Center, in sliding axle（2）Position somewhat more rearward；Rotating shaft（16）With No. 1 spur gear（17）Axle is connected；There is two depth 7mm annular groove thereon, the groove is wrapped steel wire rope, two steel wire ropes are respectively and slipmat（3）Left and right end be connected, steel wire rope tenses slipmat when fixed（3）, make slipmat（3）It is fixed in mat case.