CN208884399U - A kind of cone folding and unfolding engineering truck convenient for adjusting - Google Patents

Abstract

The utility model discloses a kind of cone folding and unfolding engineering trucks convenient for adjusting, including car body, the rear portion of the car body is mounted with wagon box, the upper surface of wagon box is fixedly installed with compartment, placement plate there are two being fixedly connected from top to bottom between left and right sides wall in compartment, the upper surface of placement plate offers pull slot, the inside of pull slot is plugged with movable plate, the upper surface of movable plate is fixedly connected with locating piece, cone is plugged on locating piece, pull slot is to open shape close to the positive one end of placement plate, the bottom wall of pull slot offers guide groove, the position that movable plate lower surface corresponds to guide groove is fixedly connected with guide pad.This is convenient for the cone folding and unfolding engineering truck adjusted, it is rolled and is connected in two rolling grooves respectively by idler wheel described in two groups, drive screw rod rotation that fixed block can be made mobile by servo motor one, and then drive mounting plate mobile, and then the placement location of cone can be adjusted as needed, it solves the problems, such as to propose in background technique.

Description

A kind of cone folding and unfolding engineering truck convenient for adjusting

Technical field

The utility model relates to traffic engineering facilities technical field, specially a kind of cone folding and unfolding engineering convenient for adjusting Vehicle.

Background technique

Highway, road junction roadway, road construction location, dangerous area, stadium, parking lot is widely applied in cone It is the important traffic peace of the units such as traffic control, municipal administration, road administration, urban construction, army, shop, organ indispensability with the places such as hotel, cell Full facility.

Now when carrying out road maintenance work, generally use cone engineering truck carry out cone placement, but Different sections of highway such as sharp turn has different requirements to the placement location of cone, but present cone engineering truck is difficult to realize Cone places the adjusting of spacing, and due to vehicle body, the adjusting of the laterally disposed position of cone is also difficult to realize, existing Have so being badly in need of a kind of cone folding and unfolding engineering truck convenient for adjusting.

Utility model content

(1) the technical issues of solving

In view of the deficiencies of the prior art, the utility model provides a kind of cone folding and unfolding engineering truck convenient for adjusting, solution The problem of being proposed in background technique of having determined.

(2) technical solution

In order to achieve the above object, the utility model is achieved by the following technical programs: a kind of traffic convenient for adjusting Folding and unfolding engineering truck is bored, including car body, the rear portion of the car body are mounted with wagon box, the upper surface of wagon box is fixedly installed with compartment, vehicle It being fixedly connected from top to bottom between left and right sides wall in compartment there are two placement plate, the upper surface of placement plate offers pull slot, The inside of pull slot is plugged with movable plate, and the upper surface of movable plate is fixedly connected with locating piece, is plugged with cone on locating piece, Pull slot is to open shape close to the positive one end of placement plate, and the bottom wall of pull slot offers guide groove, and movable plate lower surface is corresponding The position of guide groove is fixedly connected with guide pad, and guide pad slidably connects in guide groove.

The compartment is internally provided with mounting plate, and two placement plates are respectively positioned on the rear side of mounting plate, the inner bottom wall in compartment It opens up there are two the rolling groove being parallel to each other, two rolling grooves are located at the underface of mounting plate lower surface rear and front end, pacify The rear and front end of loading board lower surface is fixedly installed with one group of idler wheel, and two groups of idler wheels roll respectively to be connected in two rolling grooves, The right end of compartment inner bottom wall and it is located between two rolling grooves and is fixedly installed with servo motor one, the output end of servo motor one is logical One end that shaft coupling one is fixedly connected with screw rod is crossed, the other end of screw rod is movably connected in the inner left wall in compartment by first bearing On, and screw rod is located at the lower section of mounting plate, the lower surface of mounting plate is fixedly connected with the upper surface of fixed block, opens up on fixed block There is screw hole, the both ends of screw hole are located at the left and right sides of fixed block, and screw flight is connected in screw hole, the left and right of mounting plate Two sides are respectively fixedly connected with the left side of the first vertical plate and the right side of the second vertical plate, between the first vertical plate and the second vertical plate And the top for being located at mounting plate has been movably connected with live-roller one and live-roller two by second bearing, live-roller one, which is located at, to be passed The rear side of dynamic roller two, live-roller one and live-roller two are sequentially connected by belt one, and the left side of the first vertical plate corresponds to live-roller One position is fixedly installed with servo motor two by mounting rod one, and the left end of live-roller one extends second bearing and passes through connection Axis device two is fixedly connected with the output end of servo motor two.

The lateral surface of first vertical plate and the second vertical plate offers sliding slot, slidably connects cunning inside two sliding slots Block, the lateral surface of two sliding blocks are fixedly connected to bull stick, and two one end of bull stick far from mounting plate are distinguished by 3rd bearing Be connected with the right side of the first connecting plate and the left side of the second connecting plate, the first connecting plate and the second connecting plate far from mounting plate one End all extends to the outside in compartment, between the first connecting plate and the second connecting plate by fourth bearing be movably connected with drive roll and Driven voller, drive roll are located at the rear side of driven voller, drive roll and driven voller and are sequentially connected by belt two, the left side of the first connecting plate The position that face corresponds to drive roll is fixedly installed with servo motor three by mounting rod two, and fourth bearing is extended in the left end of drive roll And be fixedly connected by shaft coupling three with the output end of servo motor three, the lateral surface of belt two is fixedly connected with evenly arranged Driving lever.

The left side of first connecting plate and the right side of the second connecting plate are respectively fixedly connected with that there are two connections by bolt Ring, the bottom end of two connection rings are welded with connecting rod, and two connecting rod medial surfaces have been respectively fixedly connected with far from one end of wagon box and have dialled The left and right sides of movable plate, and the first connecting plate and the second connecting plate are respectively positioned on the rear side of swinging plate, the bottom of swinging plate offers arch V notch v, the position that swinging plate bottom corresponds to arch notch offer a v notch v.

Preferably, the front of the placement plate and it is located at below pull slot and offers support slot, the inside of support slot is inserted It is connected to support rod, support rod is fixedly connected with one end of U-shaped bar, the other end of U-shaped bar and work close to the positive one end of placement plate The front of movable plate is fixedly connected.

Preferably, two, the idler wheel be one group, rolling groove is perpendicular with the left and right side in compartment, and the rolling groove with Screw rod is parallel to each other.

Preferably, first connecting plate and the second connecting plate with the central axes of mounting plate be referring to symmetrical, and the first connecting plate with The lower surface of second connecting plate is contacted with the edge of compartment bottom wall.

Preferably, the top of the drive roll and the top of live-roller two are located at same level height, and bull stick and first connect The junction of plate is the first connecting plate left side at the bottom corners of one end of mounting plate.

Preferably, the range of the lower surface of first connecting plate and wagon box upper surface angulation is 20 to 30 degree, The bottom end of first connecting plate is slightly above the bottom end of wheel on wagon box.

Preferably, the lower surface of the swinging plate is slightly above the bottom end of wheel on wagon box, and the diameter of arch notch, which is less than, to be handed over The maximum gauge of logical cone, v notch v and arch notch are located at same central axes, and the length of v notch v is greater than cone Base area.

Preferably, identical as the length of the second vertical plate and central axes with mounting plate of first vertical plate are that reference is symmetrical, The length of sliding slot is 2/3rds of the first vertical plate length.

Preferably, the length of the support rod is greater than the length of movable plate, and the side bonds of support rod have rubber pad, rubber The inner wall for padding one side and support slot far from support rod is in close contact.

(3) beneficial effect

The utility model provides a kind of cone folding and unfolding engineering truck convenient for adjusting, have it is following the utility model has the advantages that

(1), it should be rolled respectively by idler wheel described in two groups convenient for the cone folding and unfolding engineering truck adjusted and be connected to two rollings In dynamic slot, drive screw rod rotation that fixed block can be made mobile by servo motor one, and then drive mounting plate mobile, and then can The placement location for adjusting cone as needed, solves the problems, such as to propose in background technique.

(2), second bearing should be extended by the left end of live-roller one and led to convenient for the cone folding and unfolding engineering truck adjusted It crosses shaft coupling two to be fixedly connected with the output end of servo motor two, controls servo motor two and servo respectively using servo controller The revolving speed of motor three can control the revolving speed of belt one and belt two, and then control the placement distance of adjacent traffic cone, solve The problem of being proposed in background technique.

It (3), should be convenient for the cone folding and unfolding engineering truck of adjusting, by between the first vertical plate and the second vertical plate and positioned at installation The top of plate has been movably connected with live-roller one and live-roller two by second bearing, can be right using belt one and belt two Cone is transmitted, and does not need manpower transport, is saved labour and time, be can be realized the quick of cone using swinging plate It places.

Detailed description of the invention

Fig. 1 is the utility model structure front view；

Fig. 2 is Section A-A figure in the utility model Fig. 1；

Fig. 3 is the enlarged drawing in the utility model Fig. 2 at A；

Fig. 4 is the enlarged drawing in the utility model Fig. 2 at B；

Fig. 5 is the attachment structure schematic diagram of the utility model screw rod and compartment；

Fig. 6 is the connection structure cross-sectional view of the first upright bar of the utility model and the second upright bar；

Fig. 7 is the connection structure cross-sectional view of the utility model first connecting rod and second connecting rod.

In figure: 1 car body, 2 wagon boxes, 3 compartments, 4 placement plates, 5 pull slots, 6 movable plates, 7 cones, 8 guide grooves, 9 guiding Block, 10 mounting plates, 11 rolling grooves, 12 idler wheels, 13 servo motors one, 14 shaft couplings one, 15 screw rods, 16 first bearings, 17 are fixed Block, 18 U-shaped bars, 19 screw holes, 20 first vertical plates, 21 second vertical plates, 22 second bearings, 23 live-rollers one, 24 live-rollers two, 25 Belt one, 26 mounting rods one, 27 servo motors two, 28 shaft couplings two, 29 sliding slots, 30 sliding blocks, 31 bull sticks, 32 3rd bearings, 33 First connecting plate, 34 second connecting plates, 35 fourth bearings, 36 drive rolls, 37 driven vollers, 38 belts two, 39 mounting rods two, 40 servos electricity Machine three, 41 shaft couplings three, 42 driving levers, 43 bolts, 44 connection rings, 45 connecting rods, 46 swinging plates, 47 arch notches, 48 v notch vs, 49 support slots, 50 support rods, 51 rubber pads, 55 locating pieces.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-7 is please referred to, the utility model provides a kind of technical solution: a kind of cone folding and unfolding engineering convenient for adjusting Vehicle, including car body 1, the rear portion of car body 1 are mounted with wagon box 2, and the upper surface of wagon box 2 is fixedly installed with compartment 3, the left side in compartment 3 Placement plate 4 there are two being fixedly connected from top to bottom between right two sidewalls, the upper surface of placement plate 4 offers pull slot 5, pull slot 5 inside is plugged with movable plate 6, the front of the placement plate 4 and lower section for being located at pull slot 5 offers support slot 49, support slot 49 Inside be plugged with support rod 50, support rod 50 is fixedly connected with one end of U-shaped bar 18, U-shaped close to the positive one end of placement plate 4 The other end of bar 18 is fixedly connected with the front of movable plate 6, and the length of support rod 50 is greater than the length of movable plate 6, support rod 50 Side bonds have a rubber pad 51, the inner wall of one side of the rubber pad 51 far from support rod 50 and support slot 49 is in close contact, benefit With the friction between 49 inner wall of elastic reinforcement support rod 50 and support slot of rubber pad 51, make movable plate 6 the impersonal force the case where Under will not be moved in pull slot 5, movable plate 6 is extracted out out of pull slot 5, convenient for users to taking traffic from placement plate 4 Cone 7, pull slot 5 are to open shape close to the positive one end of placement plate 4, and the bottom wall of pull slot 5 offers guide groove 8, under movable plate 6 The position that surface corresponds to guide groove 8 is fixedly connected with guide pad 9, and guide pad 9 slidably connects in guide groove 8, guide groove 8 Extending direction is identical as the direction of motion of movable plate 6.

Compartment 3 is internally provided with mounting plate 10, and two placement plates 4 are respectively positioned on the rear side of mounting plate 10, the interior bottom in compartment 3 Wall is opened up there are two the rolling groove 11 being parallel to each other, and two rolling grooves 11 are being located at 10 lower surface rear and front end of mounting plate just Lower section, the rear and front end of 10 lower surface of mounting plate are fixedly installed with one group of idler wheel 12, and two groups of idler wheels 12 roll be connected to respectively In two rolling grooves 11, the right end of 3 inner bottom wall of compartment and it is fixedly installed with servo motor 1 between two rolling grooves 11, The output end of servo motor 1 is fixedly connected with one end of screw rod 15 by shaft coupling 1, and 12 two, idler wheel are one group, rolling Dynamic slot 11 is perpendicular with the left and right side in compartment 3, and rolling groove 11 is parallel to each other with screw rod 15, and the other end of screw rod 15 passes through the One bearing 16 is movably connected on the inner left wall in compartment 3, and screw rod 15 is located at the lower section of mounting plate 10, the lower surface of mounting plate 10 It is fixedly connected with the upper surface of fixed block 17, screw hole 19 is offered on fixed block 17, the both ends of screw hole 19 are located at fixed block 17 left and right sides, screw rod 15 are threaded in screw hole 19, and the left and right sides of mounting plate 10 have been respectively fixedly connected with The right side of the left side of one vertical plate 20 and the second vertical plate 21, servo motor can make to control speed, and position precision is very accurate, can To convert torque and revolving speed for voltage signal with drive control object, servo controller is one kind for controlling servo motor Controller belongs to a part of servo-system, carries out control using working condition of the servo controller to servo motor and belongs to public affairs Know technology, do not do excessive narration, servo motor 1 is controlled using servo controller, mounting plate 10 can be moved to The position needed is lived respectively between the first vertical plate 20 and the second vertical plate 21 and positioned at the top of mounting plate 10 by second bearing 22 Dynamic to be connected with live-roller 1 and live-roller 2 24, live-roller 1 is located at the rear side of live-roller 2 24, live-roller 1 and biography Dynamic roller 2 24 is sequentially connected by belt 1, and the position that the left side of the first vertical plate 20 corresponds to live-roller 1 passes through mounting rod One 26 are fixedly installed with servo motor 2 27, the left end of live-roller 1 extend second bearing 22 and by shaft coupling 2 28 with The output end of servo motor 2 27 is fixedly connected.

Sliding block 30 is slidably connected inside two sliding slots 29, the lateral surface of two sliding blocks 30 is fixedly connected to bull stick 31, the one end of two bull sticks 31 far from mounting plate 10 is movably connected with the right side of the first connecting plate 33 by 3rd bearing 32 With the left side of the second connecting plate 34, it is lifted up the first connecting plate 33 and the second connecting plate 34, then is pushed into compartment 3, convenient for the One connecting plate 33 and the second connecting plate 34 are stored, and the first connecting plate 33 and the second connecting plate 34 are all extended to far from one end of mounting plate 10 The outside in compartment 3, the first connecting plate 33 and the second connecting plate 34 with the central axes of mounting plate 10 be referring to symmetrical, and the first connecting plate 33 with The lower surface of second connecting plate 34 is contacted with the edge of 3 bottom wall of compartment, by the between the first connecting plate 33 and the second connecting plate 34 Four bearings 35 have been movably connected with drive roll 36 and driven voller 37, and the top of drive roll 36 and the top of live-roller 2 24 are located at The junction of same level height, bull stick 31 and the first connecting plate 33 is 33 left side of the first connecting plate close to one end of mounting plate 10 At bottom corners, the lower surface of the first connecting plate 33 and the range of 2 upper surface angulation of wagon box are 20 to 30 degree, belt two 38 and the rotation of belt 1 cone 7 is sent to ground, the bottom end of the first connecting plate 33 is slightly above the bottom end of wheel on wagon box 2, main Dynamic roller 36 is located at the rear side of driven voller 37, drive roll 36 and driven voller 37 and is sequentially connected by belt 2 38, the first connecting plate 33 The position that left side corresponds to drive roll 36 is fixedly installed with servo motor 3 40 by mounting rod 2 39, and the left end of drive roll 36 is prolonged It stretches out fourth bearing 35 and is fixedly connected by shaft coupling 3 41 with the output end of servo motor 3 40, the lateral surface of belt 2 38 It is fixedly connected with evenly arranged driving lever 42.

The left side of first connecting plate 33 and the right side of the second connecting plate 34 are respectively fixedly connected with that there are two connect by bolt 43 Ring 44 is connect, the bottom end of two connection rings 44 is welded with connecting rod 45, and two one end of 45 medial surface of connecting rod far from wagon box 2 are solid respectively Surely the left and right sides of swinging plate 46 are connected with, and the first connecting plate 33 and the second connecting plate 34 are respectively positioned on the rear side of swinging plate 46, dialled The bottom of movable plate 46 offers arch notch 47, and the position that 46 bottom of swinging plate corresponds to arch notch 47 offers a v notch v 48。

In use, user, which controls servo motor 1 by servo controller, adjusts the position that mounting plate 10 arrives needs, It pulls U-shaped bar 18 to pull out movable plate 6 out of pull slot 5, removes cone 7, controlled respectively by corresponding servo controller Servo motor 2 27 and servo motor 3 40 work, and rotating belt 1 and belt 2 38 is the shape conveyed to the outside of compartment 3 State, car body 1 travel forwards, and cone 7 is placed on belt 1, keep the tip of cone 7 external, and cone 7 passes through skin Ground is fallen in after band 1 and belt 2 38, the tip of cone 7 initially passes through arch notch 47 and v notch v 47, traveling wave wall 46 When moving to 7 diameter of cone and being greater than the position of arch notch 47, cone 7 is taken standings, placement is completed, needs to recycle When, servo motor 2 27 and servo motor 3 40 are controlled by corresponding servo controller respectively, make belt 1 and belt two 38 rotations is, to the state of 3 delivered inside of compartment, car body 1 are using the driving mode moved backward, handle when traveling wave wall 46 contacts cone 7 Cone 7 is shifted onto, and 7 bottom end of cone enters between belt 2 38 and traveling wave wall 46, and driving lever 46 hooks inside cone 7, will be handed over Logical cone 7 is hooked onto belt 2 38, then is fallen on belt 1, is taken in cone 7 in compartment 3 by belt 1, then by working Cone 7 is inserted on the locating piece 55 on movable plate 6 by personnel in the car, completes recycling.

In conclusion should be rolled respectively by two groups of idler wheels 12 convenient for the cone folding and unfolding engineering truck adjusted and be connected to two In a rolling groove 11, drive the rotation of screw rod 15 that fixed block 17 can be made mobile by servo motor 1, and then drive mounting plate 10 is mobile, and then can adjust the placement location of cone 7 as needed, solves the problems, such as to propose in background technique.

This extends second bearing 22 by the left end of live-roller 1 and leads to convenient for the cone folding and unfolding engineering truck adjusted It crosses shaft coupling 2 28 to be fixedly connected with the output end of servo motor 2 27, controls servo motor 2 27 respectively using servo controller With the revolving speed of servo motor 3 40, the revolving speed of belt 1 and belt 2 38 can be controlled, and then controls putting for adjacent traffic cone 7 Distance is set, solves the problems, such as to propose in background technique.

This is convenient for the cone folding and unfolding engineering truck adjusted, by between the first vertical plate 20 and the second vertical plate 21 and positioned at installation The top of plate 10 has been movably connected with live-roller 1 and live-roller 2 24 by second bearing 22, can utilize belt 1 It is transmitted with 2 38 pairs of cones 7 of belt, does not need manpower transport, save labour and time, it can using swinging plate 46 Realize the quick placement of cone 7.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (3)

1. a kind of cone folding and unfolding engineering truck convenient for adjusting, including car body (1), the rear portion of the car body (1) are mounted with wagon box (2), the upper surface of the wagon box (2) is fixedly installed with compartment (3), it is characterised in that: the left and right sides wall in the compartment (3) Between be fixedly connected from top to bottom there are two placement plate (4), the upper surface of placement plate (4) offers pull slot (5), pull slot (5) inside is plugged with movable plate (6), and the upper surface of movable plate (6) is fixedly connected with locating piece (55), is inserted on locating piece (55) It is connected to cone (7), pull slot (5) is to open shape close to placement plate (4) positive one end, and the bottom wall of pull slot (5) offers Guide groove (8), the position that movable plate (6) lower surface corresponds to guide groove (8) are fixedly connected with guide pad (9), guide pad (9) sliding It is connected in guide groove (8)；

The compartment (3) is internally provided with mounting plate (10), and two placement plates (4) are respectively positioned on the rear side of mounting plate (10), vehicle The inner bottom wall in compartment (3) is opened up there are two the rolling groove (11) being parallel to each other, and two rolling grooves (11) are located at mounting plate (10) The underface of lower surface rear and front end, the rear and front end of mounting plate (10) lower surface are fixedly installed with one group of idler wheel (12), and two Group idler wheel (12) rolls be connected in two rolling grooves (11) respectively, the right end of compartment (3) inner bottom wall and is located at two rolling grooves (11) servo motor one (13) is fixedly installed between, the output end of servo motor one (13) connects by the way that shaft coupling one (14) is fixed It is connected to one end of screw rod (15), the other end of screw rod (15) is movably connected in the inner left wall of compartment (3) by first bearing (16) On, and screw rod (15) is located at the lower section of mounting plate (10), the lower surface of mounting plate (10) is fixedly connected with the upper of fixed block (17) Surface offers screw hole (19) on fixed block (17), and the both ends of screw hole (19) are located at the left and right sides of fixed block (17), Screw rod (15) is threaded in screw hole (19), and the left and right sides of mounting plate (10) have been respectively fixedly connected with the first vertical plate (20) Left side and the second vertical plate (21) right side, between the first vertical plate (20) and the second vertical plate (21) and be located at mounting plate (10) Top be movably connected with live-roller one (23) and live-roller two (24), live-roller one (23) position by second bearing (22) In the rear side of live-roller two (24), live-roller one (23) and live-roller two (24) are sequentially connected by belt one (25), and first is vertical The position that the left side of plate (20) corresponds to live-roller one (23) is fixedly installed with servo motor two (27) by mounting rod one (26), Extend second bearing (22) and pass through the output of shaft coupling two (28) and servo motor two (27) in the left end of live-roller one (23) End is fixedly connected；

The lateral surface of first vertical plate (20) and the second vertical plate (21) offers sliding slot (29), and two sliding slots (29) are internal It slidably connects sliding block (30), the lateral surface of two sliding blocks (30) is fixedly connected to bull stick (31), and two bull sticks (31) are separate One end of mounting plate (10) is movably connected with right side and the second connecting plate of the first connecting plate (33) by 3rd bearing (32) (34) left side, the first connecting plate (33) and the second connecting plate (34) all extend to compartment (3) far from the one end of mounting plate (10) Outside, between the first connecting plate (33) and the second connecting plate (34) by fourth bearing (35) be movably connected with drive roll (36) and Driven voller (37), drive roll (36) are located at the rear side of driven voller (37), and drive roll (36) and driven voller (37) pass through belt two (38) it is sequentially connected, the position that the left side of the first connecting plate (33) corresponds to drive roll (36) is fixedly mounted by mounting rod two (39) There is servo motor three (40), the left end of drive roll (36) extends fourth bearing (35) and by shaft coupling three (41) and servo electricity The output end of machine three (40) is fixedly connected, and the lateral surface of belt two (38) is fixedly connected with evenly arranged driving lever (42)；

The left side of first connecting plate (33) and the right side of the second connecting plate (34) have been respectively fixedly connected with by bolt (43) Two connection rings (44), the bottom end of two connection rings (44) are welded with connecting rod (45), and two connecting rod (45) medial surfaces are far from vehicle One end of bucket (2) is respectively fixedly connected with the left and right sides of swinging plate (46), and the first connecting plate (33) and the second connecting plate (34) It is respectively positioned on the rear side of swinging plate (46), the bottom of swinging plate (46) offers arch notch (47), and swinging plate (46) bottom is corresponding The position of arch notch (47) offers a v notch v (48).

2. a kind of cone folding and unfolding engineering truck convenient for adjusting according to claim 1, it is characterised in that: the idler wheel (12) two are one group, and rolling groove (11) is perpendicular with the left and right side of compartment (3), and rolling groove (11) and screw rod (15) are mutual In parallel.

3. a kind of cone folding and unfolding engineering truck convenient for adjusting according to claim 1, it is characterised in that: the drive roll (36) top on top and live-roller two (24) is located at same level height, the junction of bull stick (31) and the first connecting plate (33) It is the first connecting plate (33) left side at the bottom corners of one end of mounting plate (10).