CN209505716U - A kind of top vehicle and wheel dismounting device with rescue function automobile-mounted - Google Patents

Abstract

The utility model discloses a kind of top vehicles and wheel dismounting device with rescue function automobile-mounted, including scissor-like jack, it includes groove profile pedestal, mandril, rear jacking block, movable top, nut, screw rod and ripping bar, the front end of screw rod is connect with nut, and the rear end of screw rod is connect with the movable axle sleeve of upper end after groove profile pedestal；And wheel dismounts assistor, it includes shell, input driving gear shaft, the active gear wheel being sleeved on input driving gear shaft and driver pinion, output driven gear shaft, the driven gear wheel being sleeved on output driven gear shaft and driven pinion and the reaction arm of force, input driving gear shaft can be rotated and axially movably install on the shell, and output driven gear shaft is installed in rotation on shell.The top vehicle and wheel dismounting device with rescue function automobile-mounted of the utility model realize top vehicle and dismounting wheel during it is not only quick but also laborsaving, and also with collapsible wheel when rescue function.

Description

A kind of top vehicle and wheel dismounting device with rescue function automobile-mounted

Technical field

The utility model relates to automobile technical field more particularly to a kind of top vehicles and wheel with rescue function automobile-mounted Attaching/detaching apparatus.

Background technique

Scissor-like jack is mainly used for the jack-up of small tonnage automobile, is domestic major automobile factory with vehicle jack.It is existing Scissor-like jack uses crank rotary screw rod to be promoted when in use, and such rate of climb is slow, when automobile is arrived on top to jack not yet Waste the plenty of time, once and to jack top to automobile stress, and it is very laborious.Especially some offroad vehicles, SUV, MPV etc. Vehicle, chassis are high, itself weight, and traditional scissor-like jack uses just very inconvenient, and especially for women, just more power is not From the heart.There are also traditional scissor-like jacks to be limited by extreme lower position is high, and when with encountering Automobile wheel clogging, jack cannot be put Enter automobile chassis, to not have rescue effect.Furthermore when spare tyre is replaced in field, driver's tool is due to no laborsaving dress It sets, not enough strength may dismount tire screw for women.

Utility model content

The purpose of the utility model is to provide a kind of top vehicles and wheel dismounting device with rescue function automobile-mounted, realize It is not only quick but also laborsaving during top vehicle and dismounting wheel, and also with collapsible wheel when rescue function, one machine of realization is more With.

To achieve the above object, the utility model provides a kind of top vehicle and wheel dismounting dress with rescue function automobile-mounted It sets, including scissor-like jack, including groove profile pedestal, mandril, jacking block, movable top, nut, screw rod and ripping bar, groove profile pedestal Inclination upward is bent to form and leans forward inclined portion and the hypsokinesis inclined portion higher than the inclined portion that leans forward, the front end for the inclined portion that leans forward are respectively for rear and front end Tip end, mandril is located in groove profile pedestal and the rear end of mandril and groove profile pedestal are articulated and connected, and the rear portion of jacking block can stretch Ground is installed in mandril, and the front of jacking block is located in top rake portion and the front end of jacking block and activity top are articulated and connected, nut position In jacking block rear end and be hingedly mounted in mandril, the front end of screw rod connect with mandril by nut and can run through mandril Bottom, the rear end of screw rod is mounted on hypsokinesis inclined portion upper end by movable axle sleeve, and ripping bar is fixed on the rear end of groove profile pedestal；And

Wheel dismounts assistor, including shell, input driving gear shaft, in shell and is sleeved on input driving gear Active gear wheel and driver pinion on axis, output driven gear shaft in shell and are sleeved on output driven gear shaft On driven gear wheel and driven pinion and the reaction arm of force, input driving gear shaft can be rotated and axially movably pacify Dress on the shell and through shell front and back end and input driving gear shaft moving process in constitute active gear wheel with it is driven small The second state that the first state and driver pinion of gear engagement are engaged with driven gear wheel, output driven gear shaft can turn It is installed dynamicly on the shell and through shell front and back end, reaction arm of force movable set is on shell lateral surface, the reaction arm of force Rear end with output driven gear shaft respectively with the rear end of ripping bar and screw rod is detachably connected.

The groove profile pedestal includes bottom plate and is vertically fixedly connected on a bottom plate left side as a further improvement of the utility model, The side plate on right side, the rear end of mandril are articulated and connected with two side plates, and inclination is bent to form upward respectively for the rear and front end of each side plate Lean forward inclined plate and hypsokinesis inclined plate, and two inclined plates that lean forward constitute the inclined portion that leans forward, and the front of jacking block is located between two inclined plates that lean forward, preceding There is arc V slot in the top edge of hang plate, and two hypsokinesis inclined plates constitute hypsokinesis inclined portion, and movable axle sleeve is hingedly mounted on two rear-inclineds On plate.

As the further improvement of the utility model, the ripping bar is fixed on the upside of bottom plate and parallel with bottom plate, sled The rear end of bar is stretched out outer on rear side of two hypsokinesis inclined plates after between two hypsokinesis inclined plates, and the reaction arm of force includes and shell side The arm one of flexible connection and the arm two being connect with ripping bar, two vertical arm portions one of arm, arm two and input driving gear shaft And output driven gear shaft is parallel.

As the further improvement of the utility model, the front end of the output driven gear shaft connection wire rod is four directions Head shapes, screw rod rear end have with the cubic matched square hole of head shapes, ripping bar is cylindrical bar, and the front end of arm two is and circle The matched circular hole of shape bar.

As the further improvement of the utility model, the shell side is connected with sleeve, one movable sleeve of arm In sleeve.

As the further improvement of the utility model, the shell include seamless steel pipe and be set to seamless steel pipe top bottom two The top cover and bottom cover at end, bottom cover are weldingly fixed on seamless steel pipe, and top cover is removably mounted on seamless steel pipe and passes through card Spring is fixed, and sleeve is integrally attached on seamless steel pipe outer wall.

As the further improvement of the utility model, groove and jump-ring slot, circlip are provided on the seamless steel pipe internal wall Slot position is above groove, and the outer of top cover is with the projection being caught in groove, and circlip is stuck in jump-ring slot and presses top cover.

As the further improvement of the utility model, the mandril includes groove profile bar and the rectangle that is fixed in groove profile bar Pipe, the front and back end and upside of groove profile bar are open, and the rear portion of jacking block can be telescopically installed in rectangular tube, the bottom wall of rectangular tube With the perforative relief hole in the front end for being provided with the screw mandrel being connected on the bottom wall of groove profile bar, nut is hingedly mounted on groove profile bar On side wall, by stud connection, the front of jacking block is the V being adapted with arc V groove shape for the side wall of groove profile bar and two side plates Shape structure and height are below lean forward inclined portion and hypsokinesis inclined portion, and activity top is that V-type comes directly towards.

As the further improvement of the utility model, the top of the rectangular tube and the rear portion of jacking block are provided with corresponding Pin hole is inserted with bolt at pin hole.

As the further improvement of the utility model, extend outwardly to form balance plate on the outside of the left and right two of the bottom plate, The front end of balance plate extends to the front end for the inclined plate that leans forward along the inclined direction for the inclined plate that leans forward.

Compared with prior art, the top vehicle with rescue function automobile-mounted of the utility model and having for wheel dismounting device Beneficial effect is as follows:

(1) after scissor-like jack puts on wheel dismounting assistor, gear drive is changed by mobile input driving gear shaft Than accelerating when, idle stroke, when stress, increases torque, has reached during the vehicle of top not only efficiently but also labour-saving effect.

(2) wheel dismounting assistor and scissor-like jack are separable, also serve as tire screw dismounting torque multiplier, realize one Machine is multi-purpose, not only quick but also laborsaving during dismounting wheel.

(3) scissor-like jack extreme lower position height is low, and mandril front end is recoverable, and pan frontward end is designed as arc, rear end band Have crowbar, in Automobile wheel clogging when can do rescue tool, automobile does not have to separately match rescue tool.

(4) overall structure is simple.

Through the following description and in conjunction with the attached drawings, the utility model will become more fully apparent, these attached drawings are for explaining this The embodiment of utility model.

Detailed description of the invention

Fig. 1 is the stereoscopic schematic diagram one of scissor-like jack.

Fig. 2 is the stereoscopic schematic diagram two of scissor-like jack.

Fig. 3 is the schematic diagram three of scissor-like jack, the schematic diagram partial cut hypsokinesis inclined portion.

Fig. 4 is the cross-sectional view of scissor-like jack.

Fig. 5 is scissor-like jack for jacking up status diagram when pushing up vehicle.

Fig. 6 is the stereoscopic schematic diagram that wheel dismounts assistor.

Fig. 7 is the front end face schematic diagram that wheel dismounts assistor.

Fig. 8 is the cross-sectional view in the direction A-A shown in Fig. 7.

Wherein, the above drawings include the following reference numerals: scissor-like jack 1, groove profile pedestal 11, the inclined portion that leans forward 111, hypsokinesis Inclined portion 112, bottom plate 11a, side plate 11b, lean forward inclined plate 11c, hypsokinesis inclined plate 11d, balance plate 11e, arc V slot a, mandril 12, slot Type bar 12a, rectangular tube 12b, relief hole b, jacking block 13, activity top 14, pin hole c, nut 15, screw rod 16, square hole 161, Ripping bar 17, movable axle sleeve 18；Wheel dismounts assistor 2, shell 21, seamless steel pipe 21a, grooves d, jump-ring slot e, projection f, top cover 21b, bottom cover 21c, circlip 21d, sleeve 21e, input driving gear shaft 22, active gear wheel 23, driver pinion 24, output from Movable gear shaft 25, driven gear wheel 26, driven pinion 27, the reaction arm of force 28, one 28a of arm, arm two 28b, circular hole g, Slot m, axle portion n, hinged shaft o.

Specific embodiment

The embodiments of the present invention are described referring now to the drawings, similar element numbers represent similar member in attached drawing Part.

Fig. 1-8 is please referred to, the top vehicle and wheel dismounting device with rescue function automobile-mounted includes that scissors are very heavy Top 1 and wheel dismount assistor 2.

The scissor-like jack 1 includes groove profile pedestal 11, mandril 12, jacking block 13, activity top 14, nut 15, screw rod 16 With ripping bar 17.Inclination is bent to form the inclined portion 111 and higher than the inclined portion 111 that leans forward of leaning forward upward respectively for the rear and front end of groove profile pedestal 11 Hypsokinesis inclined portion 112, the front end of the inclined portion that leans forward 111 is tip end.Mandril 12 is located in groove profile pedestal 11 and after mandril 12 End is articulated and connected with groove profile pedestal 11.The rear portion of jacking block 13 can be telescopically installed in mandril 12, and the front of jacking block 13 is located at 14 articulated connection of in the inclined portion that the leans forward 111 and front end of jacking block 13 and activity top.Nut 15 is located at the rear end of jacking block 13 and hinge It connects and is mounted in mandril 12.The front end of screw rod 16 connect with mandril 12 by nut 15 and can run through the bottom of mandril 12, The rear end of screw rod 16 passes through movable axle sleeve 18 and is mounted on 112 upper end of hypsokinesis inclined portion.Ripping bar 17 is weldingly fixed on groove profile pedestal 11 Rear end.

The groove profile pedestal 11 includes bottom plate 11a and the side plate 11b for being vertically fixedly connected on bottom plate 11a left and right sides, side plate 11b and bottom plate 11a integrally connected.The rear end of mandril 12 is articulated and connected with two side plate 11b.The rear and front end of each side plate 11b point Inclination upward is bent to form the inclined plate 11c and hypsokinesis inclined plate 11d that leans forward, and two inclined plate 11c compositions that lean forward lean forward inclined portion 111, top The front of block 13 is located between two inclined plates that lean forward, and there is arc V slot a in the top edge for the inclined plate 11c that leans forward, and arc V slot a is in favor of top Bar 12 is put down completely, for reducing the minimum altitude of jack.Two hypsokinesis inclined plate 11d constitute hypsokinesis inclined portion 112, movable axle sleeve 18 are located between two hypsokinesis inclined plate 11d and are hingedly mounted on two hypsokinesis inclined plate 11d, open on two hypsokinesis inclined plate 11d There is fluting m, the left and right sides of movable axle sleeve 18 protrudes the axle portion n to be formed and be protruded into fluting m.Two outside of left and right of the bottom plate 11a It extends outwardly to form balance plate 11e, the front end of balance plate 11e extends to the inclined plate that leans forward along the inclined direction for the inclined plate 11c that leans forward The front end of 11c.

The mandril 12 includes groove profile bar 12a and the rectangular tube 12b being weldingly fixed in groove profile bar 12a, groove profile bar 12a's Front and back end and upside are open, and the rear portion of jacking block 13 can be telescopically installed in rectangular tube 12b, and the rear portion of jacking block 13 is rear end Open rectangular tube structure.The rectangular tube knot at 13 rear portion of bottom wall and jacking block of the bottom wall and groove profile bar 12a of rectangular tube 12b The perforative relief hole b in front end for the screw mandrel 16 being connected is provided on the bottom wall of structure.Nut 15 is hingedly mounted on groove profile bar 12a Side wall on, the left and right sides of nut 15 is connected with articulated shaft, and articulated shaft is hingedly mounted on the side wall of groove profile bar 12a.Slot The side wall of type bar 12a is connect with two side plate 11b by hinged shaft o.The front of jacking block 13 is the V being adapted with arc V slot a shape Shape structure and height is below lean forward inclined portion 111 and hypsokinesis inclined portion 112.Activity top 14 comes directly towards for V-type.The rectangular tube The top of 12b and the rear portion of jacking block 13 are provided with corresponding pin hole c, bolt are inserted at pin hole c, bolt is for fixing jacking block 13, it avoids the position of jacking block 13 from moving, vehicle bottom is withstood with guarantee activity top 14；Bolt can also be extracted, bolt quilt After extraction, 14 linkage jacking block 13 movement backwards of activity top can be pushed to be moved into 13 rear portion of jacking block largely in rectangular tube 12b, To reduce the height of front end activity top 14, facilitates and the tip end for the inclined portion 111 that leans forward is inserted under automobile chassis side bar.Screw rod 16 There is square hole 161 in rear end.The ripping bar 17 is weldingly fixed on the upside of bottom plate 11a and, the rear end of ripping bar 17 parallel with bottom plate 11a It is stretched out after between two hypsokinesis inclined plate 11d outer on rear side of two hypsokinesis inclined plate 11d.Ripping bar 17 is cylindrical bar.

Wheel dismounting assistor 2 includes shell 21, input driving gear shaft 22, in shell 21 and is sleeved on defeated Enter active gear wheel 23 on driving gear shaft 22 and driver pinion 24, output driven gear shaft 25, be located in shell 21 and The driven gear wheel 26 and driven pinion 27 and the reaction arm of force 28 being sleeved on output driven gear shaft 25.It is sleeved on The active gear wheel 23 on driving gear shaft 22 is inputted close to 21 rear end of shell, driver pinion 24 is close to 21 front end of shell；Set Driven gear wheel 26 on output driven gear shaft 25 is close to 21 front end of shell, and driven pinion 27 is close to after shell 21 End.Input driving gear shaft 22 can be rotated and axially movably be mounted on shell 21 and run through 21 front and back end of shell.It is inputting After driving gear shaft 22 moves backwards, active gear wheel 23 is engaged with driven pinion 27；It is facing forward to input driving gear shaft 22 After movement, driver pinion 24 is engaged with driven gear wheel 26.Output driven gear shaft 25 is installed in rotation on shell 21 It goes up and runs through 21 front and back end of shell.28 movable set of the reaction arm of force is on 21 lateral surface of shell, the reaction arm of force 28 and output Rear end of the driven gear shaft 25 respectively with the rear end of ripping bar 17 and screw rod 16 is detachably connected.Input the rear end of driving gear shaft 22 It is spanner connecting pin.

The shell 21 includes seamless steel pipe 21a and top cover 21b and bottom cover 21c set on seamless steel pipe 21a top and bottom ends, Bottom cover 21c is weldingly fixed on seamless steel pipe 21a, and top cover 21b is removably mounted on seamless steel pipe 21a and passes through circlip 21d is fixed.Grooves d and jump-ring slot e are provided on the seamless steel pipe 21a inner wall, jump-ring slot e is located above grooves d, top cover 21b It is outer be with the projection f being caught in grooves d, circlip 21d is stuck in jump-ring slot e and presses top cover 21b.The seamless steel pipe Sleeve 21e is connected on 21a outer wall.The front end of output 25 connection wire rod 16 of driven gear shaft is the four of screw rod 16 The matched cubic head shapes of square hole 161, what the square hole 161 of the square head and screw rod 16 that export driven gear shaft 25 was mutually socketed Mode is dismountable connection type.The reaction arm of force 28 include one 28a of arm being flexibly connected with 21 side of shell and with Ripping bar 17 connect two 28b of arm, two 28b vertical arm portions of arm one 28a, two 28b of arm and input driving gear shaft 22 and It is parallel to export driven gear shaft 25.For one 28a movable set of arm in sleeve 21e, one 28a of arm can extend into sleeve Most the inside, can also be moved out to the position in sleeve 21e close to outer end in 21e.The front end of two 28b of arm is and circular sled The mode and as dismountable connection side that the circular hole of the matched circular hole g of bar 17,17 rear end of ripping bar and two front end 28b of arm is socketed Formula.

When top vehicle and wheel dismounting device with rescue function automobile-mounted are used to push up vehicle, first by scissor-like jack 1 Groove profile pedestal 11 is stably placed on horizontal plane, and wheel dismounts assistor 2 on scissor-like jack 1, exports driven gear shaft 25 square head is inserted in the square hole 161 of screw rod 16, and the circular hole g of two front end 28b of arm of the reaction arm of force 28 is inserted in ripping bar Then input driving gear shaft 22 is extracted in 17 rear ends backwards, rotate input driving gear shaft 22 with spanner, at this time active gear wheel 23 drive driven pinion 27, accelerate the revolving speed of output driven gear shaft 25, the rapid increase under the drive of nut 15 of mandril 12 To vehicle bottom, after stress, input driving gear shaft 22 is pushed forward, driver pinion 24 drives driven gear wheel 26 at this time, increases Big output torque, so as to effortlessly jack up very much automobile.Thus increase revolving speed in idle stroke, when stress increases torque, real Not only efficient but also labour-saving effect is showed.

When top vehicle and wheel dismounting device with rescue function automobile-mounted are dismounted for wheel, it is only necessary to use wheel and tear open Assistor 2 is filled, wheel screw socket is covered in the square head of the output driven gear shaft 25 of wheel dismounting assistor 2 first, Then the position for adjusting the reaction arm of force 28, the circular hole g of two front end 28b of arm of wheel screw socket and the reaction arm of force 28 It is nested on 2 adjacent tire screws together, then towards input driving gear shaft 22 is pushed forward, makes driver pinion 24 and driven big Gear 26 engages, to increase torque.Input driving gear shaft 22 is rotated with spanner, after unscrewing screw, extracts input backwards actively Gear shaft 22, active gear wheel 23 is engaged with driven pinion 27 at this time, increases revolving speed, rotates input driving gear shaft with spanner 22, quickly back-out screw.Repeatedly, back-out all screws.

When top vehicle and wheel dismounting device with rescue function automobile-mounted are rescued for collapsible wheel, it is only necessary to scissors thousand Jin top 1, it is daily in encounter sometimes automobile single wheel output roadbed or collapsible wheel to cheat in, at this point, vehicle chassis drops It is very low in addition be attached on the ground, traditional jack is due to being limited the vehicle bottom that cannot put in by extreme lower position.At this moment, take out and cut Formula jack 1 extracts bolt, jacking block 13 is retracted into a part in rectangular tube 12b, then the tip end for the inclined portion 111 that leans forward It is inserted under automobile chassis side bar, firmly depresses ripping bar 17, tilt automobile using lever principle, inadequate power can connect on ripping bar 17 Extension bar, automobile tilt to extract jacking block 13 again after certain altitude and be inserted into bolt and put into and go under automobile chassis side bar, at this moment can Vehicle top is got up using jack.

Combine most preferred embodiment that the utility model is described above, but the utility model is not limited to above take off The embodiment shown, and modification, equivalent combinations that various essence according to the present utility model carry out should be covered.

Claims (10)

1. a kind of top vehicle and wheel dismounting device with rescue function automobile-mounted characterized by comprising

Scissor-like jack, including groove profile pedestal, mandril, jacking block, movable top, nut, screw rod and ripping bar, the front and back of groove profile pedestal Inclination upward is bent to form lean forward inclined portion and the hypsokinesis inclined portion higher than the inclined portion that leans forward respectively at both ends, and the front end for the inclined portion that leans forward is tip End, mandril is located in groove profile pedestal and the rear end of mandril and groove profile pedestal are articulated and connected, and the rear portion of jacking block can telescopically pacify Loaded in mandril, the front of jacking block is located in top rake portion and the front end of jacking block and activity top are articulated and connected, and nut is located at top It the rear end of block and is hingedly mounted in mandril, the front end of screw rod is connect with mandril by nut and can be through the bottom of mandril The rear end in portion, screw rod is mounted on hypsokinesis inclined portion upper end by movable axle sleeve, and ripping bar is fixed on the rear end of groove profile pedestal；And

Wheel dismount assistor, including shell, input driving gear shaft, in shell and be sleeved on input driving gear shaft on Active gear wheel and driver pinion, output driven gear shaft, in shell and be sleeved on output driven gear shaft on Driven gear wheel and driven pinion and the reaction arm of force, input driving gear shaft can be rotated and be axially movably mounted on Active gear wheel and driven pinion are constituted on shell and through shell front and back end and in input driving gear shaft moving process The second state that the first state and driver pinion of engagement are engaged with driven gear wheel, output driven gear shaft is rotationally Installation on the shell and runs through shell front and back end, and reaction arm of force movable set is on shell lateral surface, the reaction arm of force and defeated Rear end of the driven gear shaft respectively with the rear end of ripping bar and screw rod is detachably connected out.

2. as described in claim 1 with the top vehicle and wheel dismounting device of rescue function automobile-mounted, it is characterised in that: described Groove profile pedestal includes bottom plate and is vertically fixedly connected on the side plate of bottom plate left and right sides, and the rear end of mandril hingedly connects with two side plates It connects, inclination upward is bent to form lean forward inclined plate and hypsokinesis inclined plate respectively for the rear and front end of each side plate, before two inclined plates that lean forward are constituted The front of rake, jacking block is located between two inclined plates that lean forward, and there are arc V slot, two hypsokinesis inclined plates in the top edge for the inclined plate that leans forward Hypsokinesis inclined portion is constituted, movable axle sleeve is hingedly mounted on two hypsokinesis inclined plates.

3. as claimed in claim 2 with the top vehicle and wheel dismounting device of rescue function automobile-mounted, it is characterised in that: described Ripping bar is fixed on the upside of bottom plate and parallel with bottom plate, and two hypsokinesis are stretched out in the rear end of ripping bar after between two hypsokinesis inclined plates Outer on rear side of inclined plate, the reaction arm of force includes the arm one being flexibly connected with shell side and the arm two connecting with ripping bar, arm Two vertical arm portions one, arm two and input driving gear shaft and output driven gear shaft are parallel.

4. as claimed in claim 3 with the top vehicle and wheel dismounting device of rescue function automobile-mounted, it is characterised in that: described The front end for exporting driven gear shaft connection wire rod is cubic head shapes, and screw rod rear end has and the matched four directions of cubic head shapes Hole, ripping bar are cylindrical bar, and the front end of arm two is and the matched circular hole of circular pin.

5. as claimed in claim 3 with the top vehicle and wheel dismounting device of rescue function automobile-mounted, it is characterised in that: described Shell side is connected with sleeve, and one movable set of arm is in sleeve.

6. as claimed in claim 5 with the top vehicle and wheel dismounting device of rescue function automobile-mounted, it is characterised in that: described Shell includes seamless steel pipe and the top cover and bottom cover set on seamless steel pipe top and bottom ends, and bottom cover is weldingly fixed on seamless steel pipe, Top cover is removably mounted on seamless steel pipe and is fixed by circlip, and sleeve is integrally attached on seamless steel pipe outer wall.

7. as claimed in claim 6 with the top vehicle and wheel dismounting device of rescue function automobile-mounted, it is characterised in that: described Be provided with groove and jump-ring slot on seamless steel pipe internal wall, jump-ring slot is located above groove, top cover it is outer be be caught in it is convex in groove Position, circlip are stuck in jump-ring slot and press top cover.

8. as claimed in claim 2 with the top vehicle and wheel dismounting device of rescue function automobile-mounted, it is characterised in that: described Mandril includes groove profile bar and the rectangular tube that is fixed in groove profile bar, and the front and back end and upside of groove profile bar are open, the rear portion of jacking block It can telescopically be installed in rectangular tube, before being provided with the screw mandrel being connected on the bottom wall and the bottom wall of groove profile bar of rectangular tube Perforative relief hole is held, nut is hingedly mounted on the side wall of groove profile bar, and the side wall of groove profile bar and two side plates are connected by hinged shaft It connecing, the front of jacking block is the v-shaped structure being adapted with arc V groove shape and height is below lean forward inclined portion and hypsokinesis inclined portion, Activity top is that V-type comes directly towards.

9. as claimed in claim 8 with the top vehicle and wheel dismounting device of rescue function automobile-mounted, it is characterised in that: described The top of rectangular tube and the rear portion of jacking block are provided with corresponding pin hole, are inserted with bolt at pin hole.

10. as claimed in claim 2 with the top vehicle and wheel dismounting device of rescue function automobile-mounted, it is characterised in that: institute It states and extends outwardly to form balance plate on the outside of the left and right two of bottom plate, the front end of balance plate is extended to along the inclined direction for the inclined plate that leans forward Lean forward the front end of inclined plate.