A small automated tow truck

Abstract

The present invention discloses a small-sized automatic tow truck, comprising a chassis support, two sides of the chassis support are provided with walking tracks, a main board is provided above the chassis support, the tail of the main board is hinged with the chassis support, a main hydraulic rod is provided between the bottom of the main board and the chassis support; a sub-board is hinged with the tail of the main board, a sub-hydraulic rod is provided between the sub-board and the main board; a first card slot is provided on the inner side of the sub-board; a slide slot is provided on the outer side of the sub-board, a card plate is provided in the slide slot, and a second card slot is provided on the card plate; a screw rod is provided in the slide slot; a plurality of first visual probes are provided on the inner side of the sub-board, and a second visual probe is provided on the card plate; a front baffle is provided at the front end of the main board, and a winch is provided on the front baffle. The present invention can not only realize the towing of vehicles in a narrow space in a variety of operation modes, but also realize the intact lifting of cars with different side skirt widths.

Description

Technical Field

[0001] The invention relates to the technical field of tow trucks, in particular to a small-sized automated tow truck. Background Art

[0002] Nowadays, road tow trucks are mainly divided into two types: flatbed tow trucks and towing tow trucks. Their operation process is mainly to tow other small vehicles by mechanically tilting the flatbed and directly towing. However, in the process of towing faulty vehicles, not all small vehicles are convenient for existing tow trucks to tow. For example, when the vehicle to be towed is parked in underground garages and other places that are inconvenient for large tow trucks to enter, or parked on the side of the road, and the vehicle cannot move autonomously for some reason, it is difficult for the above-mentioned tow trucks to tow, which brings many difficulties and inconveniences. Summary of the invention

[0003] The purpose of the present invention is to provide a small automatic tow truck. The present invention can not only realize the towing of vehicles in a narrow space in a variety of operation modes, but also realize the intact lifting of cars with different side skirt widths.

[0004] The technical solution of the present invention is as follows: a small-sized automatic tow truck comprises a chassis support, walking tracks are arranged on both sides of the chassis support, a main board is arranged above the chassis support, the tail of the main board is hinged to the chassis support, a main hydraulic rod is arranged between the bottom of the main board and the chassis support, the bottom of the main hydraulic rod is hinged to the surface of the chassis support, and the extended end of the main hydraulic rod is hinged to the bottom of the main board; a sub-board is hinged to the tail of the main board, a sub-hydraulic rod is arranged between the sub-board and the main board, the bottom of the sub-hydraulic rod is hinged to the bottom of the main board, and the extended end of the sub-hydraulic rod is hinged to the bottom of the sub-board; a first card slot is arranged on the inner side of the sub-board; and the outer side of the sub-board A slide groove is provided, a card plate is provided in the slide groove, and a second card groove is provided on the card plate; a screw rod is provided in the slide groove, a threaded hole matching with the screw rod is provided on the card plate, a servo motor is provided on the sub-plate, and the output shaft of the servo motor is connected with the shaft end of the screw rod; a plurality of first visual probes are provided on the inner side of the sub-plate, and a second visual probe is provided on the card plate; a front baffle is provided at the front end of the main plate, and a winch is provided on the front baffle; a first fixed pulley and an adjustable fixed pulley are provided on the front baffle, and a steel wire traction rope bypassing the first fixed pulley and the adjustable fixed pulley is provided on the winch, and a hook is provided at the end of the steel wire traction rope.

[0005] In the above-mentioned small-sized automated tow truck, roller grooves are respectively provided on both sides of the main board and the auxiliary board, and a plurality of rollers are provided in the roller grooves.

[0006] In the aforementioned small-sized automated tow truck, a counterweight is provided below the front end of the chassis support.

[0007] In the aforementioned small automated tow truck, an electric control cabinet is provided on the chassis support, a control circuit board is provided in the electric control cabinet, the winch, main hydraulic rod, auxiliary hydraulic rod, servo motor, first visual probe and second visual probe are all electrically connected to the control circuit board; the control circuit board is connected to a remote control via a cable.

[0008] In the aforementioned small-scale automated tow truck, the adjustable fixed pulley includes a pair of first limit slide rails laterally arranged on the front baffle, each first limit slide rail is provided with a limit sliding block, a vertically arranged second limit slide rail is provided between the two limit sliding blocks, the limit sliding block is provided with a first positioning bolt that interferes with the first limit slide rail; a mounting base is slidably provided on the second limit slide rail, and a second fixed pulley is provided on the mounting base; a second positioning bolt that interferes with the second limit slide rail is provided on the mounting base.

[0009] In the aforementioned small-sized automated tow truck, the first card slot and the second card slot are both inverted trapezoidal slots.

[0010] In the aforementioned small-sized automated tow truck, buffer layers are respectively provided on the side walls of the first slot, and the buffer layers are rubber layers.

[0011] In the aforementioned small-scale automated tow truck, a closing mechanism is provided on the card plate, and the closing mechanism includes a closing plate hinged on both sides of the second card slot and opened in opposite directions, and a spring telescopic rod is provided between the closing plate and the side wall of the second card slot, and the spring telescopic rod includes a first positioning block arranged on the bottom side of the closing plate and a second positioning block arranged on the side wall of the second card slot, a telescopic rod is hinged on the first positioning block, and a positioning rod is hinged on the second positioning block, a telescopic cavity is provided in the positioning rod, the end of the telescopic rod extends into the telescopic cavity, and a compression spring is provided between the bottom side of the telescopic cavity and the telescopic rod.

[0012] In the aforementioned small-sized automated tow truck, a receiving groove corresponding to the closing mechanism is provided on the groove wall of the second slot.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] 1. The present invention sets a walking track on the chassis support, so that there will be no slipping and idling during the walking process, so that it has the characteristics of being able to walk and transport independently, and it is small in size and can enter places that large tow trucks cannot reach, and transport vehicles parked in small spaces such as underground garages or sideways. The present invention sets a main board on the chassis support, and a sub-board is hinged at the end of the main board. When the car is transported, if there are no obstacles on the front and rear sides of the car, after the car is aligned with the main board and the sub-board, the main hydraulic rod and the sub-hydraulic rod can be controlled to change the inclination state of the main board and the sub-board, and the steel wire traction rope is fixed on the body of the transported car, and then the winch works, and the steel wire traction rope is used to drag the car to the main board to complete the transport of the car. When there are obstacles at the front and rear ends of the consigned car, the consigned car needs to be lifted sideways. The main hydraulic rod and the auxiliary hydraulic rod can be controlled to change the inclination state of the main board and the auxiliary board, and then the chassis support is driven by the walking tracks to adjust the positions of the main board and the auxiliary board until the auxiliary board is perpendicular to the axis of the consigned car. The chassis support is then driven by the walking tracks to extend the auxiliary board to the bottom of the consigned car. Then, under the monitoring of the first visual probe and the second visual probe, when the first slot and the second slot are respectively aligned with the outer skirt and inner skirt of the consigned car, the auxiliary hydraulic rod is driven to lift the auxiliary board, so that the outer skirt and inner skirt of the consigned car are respectively embedded in the first slot and the second slot, thereby positioning the car so that the car will not slip off the auxiliary board when the car is lifted sideways. In addition, a slide groove is provided on the outer side of the sub-plate in the present invention, a card plate is provided in the slide groove, and a second card groove is provided on the card plate; a screw rod is provided in the slide groove, and a threaded hole matching with the screw rod is provided on the card plate; a servo motor is provided on the sub-plate, and the output shaft of the servo motor is connected to the shaft end of the screw rod. The screw rod can be driven to rotate by the servo motor, and then the card plate can be driven to move along the slide groove to adjust the spacing between the second card groove and the first card groove to meet the lifting needs of cars with different side skirt widths.

[0015] 2. In the present invention, roller grooves are respectively provided on both sides of the main board and the auxiliary board, and rollers are provided in the roller grooves. During the traction process, the wheels of the automobile do not roll on the main board and the auxiliary board, thereby avoiding damage to the automobile drive system.

[0016] 3. In the present invention, a counterweight block is provided below the front end of the chassis support to ensure that the machine always maintains front-to-back balance before, during and after the operation.

[0017] 4. The chassis support described in the present invention is provided with an electric control cabinet, and the chassis support is provided with an electric control cabinet, and a control circuit board is provided in the electric control cabinet. The winch, the main hydraulic rod, the auxiliary hydraulic rod, the servo motor, the first visual probe and the second visual probe are all electrically connected to the control circuit board; the control circuit board is connected to a remote control through a cable, and the operation of each power device can be manually controlled by the remote control, without setting up an operating room, which effectively reduces the overall volume.

[0018] 5. The adjustable fixed pulley described in the present invention includes a pair of first limit slide rails arranged horizontally on the front baffle, each first limit slide rail is provided with a limit slider, a vertically arranged second limit slide rail is provided between the two limit sliders, the limit slider is provided with a first positioning bolt that interferes with the first limit slide rail; a mounting base is slidably provided on the second limit slide rail, and the mounting base is provided with a second fixed pulley; the mounting base is provided with a second positioning bolt that interferes with the second limit slide rail, and the position of the adjustable fixed pulley can be adjusted up, down, left and right, so that the wire traction rope remains parallel to the main board.

[0019] 6. The present invention provides a closing mechanism on the card plate, the closing mechanism includes closing plates hinged on both sides of the second card slot and opened, a spring telescopic rod is provided between the closing plate and the side wall of the second card slot, the spring telescopic rod includes a first positioning block arranged on the bottom side of the closing plate and a second positioning block arranged on the side wall of the second card slot, the first positioning block is hinged with the telescopic rod, the second positioning block is hinged with the positioning rod, a telescopic cavity is provided in the positioning rod, the end of the telescopic rod extends into the telescopic cavity, a compression spring is provided between the bottom side of the telescopic cavity and the telescopic rod, the resetting property of the compression spring in the spring telescopic rod in the closing mechanism is utilized to realize automatic closing of the closing plate to close the second card slot, so as to prevent solid hard objects from entering the second card slot during use, which may cause damage to the inner skirt when the car is lifted. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 is a side view of the present invention;

[0022] Figure 3 This is a diagram of a vehicle sideways lifting state in the embodiment;

[0023] Figure 4 This is the connection diagram between the main board and the sub-board;

[0024] Figure 5 It is a structural diagram of the pallet;

[0025] Figure 6 It is a structural schematic diagram of an adjustable fixed pulley;

[0026] Figure 7 It is a structural diagram of the closing mechanism;

[0027] Figure 8 It is a structural schematic diagram of a spring telescopic rod;

[0028] Fig. 9 is a schematic diagram of the structure of the first card slot;

[0029] Fig.10 is a state diagram of automobile consignment in the embodiment;

[0030] Fig.11 This is a diagram of the state of the present invention being used in conjunction with a large-scale tow truck in an embodiment;

[0031] Fig.12 It is the assembly diagram of the sub-board and the card board.

[0032] 1. Chassis support; 2. Walking track; 3. Main board; 4. Main hydraulic rod; 5. Auxiliary board; 6. Auxiliary hydraulic rod; 7. First slot; 8. Slide; 9. Card; 10. Second slot; 11. Screw; 13. Servo motor; 14. First visual probe; 15. Second visual probe; 16. Front baffle; 17. Winch; 18. First fixed pulley; 19. Adjustable fixed pulley; 20. Wire traction rope; 21. Hook; 22. Automobile; 23. Power device; 24, roller; 25, counterweight; 26, electric control cabinet; 27, remote control; 28, first limit slide rail; 29, limit slider; 30, second limit slide rail; 31, mounting base; 32, second fixed pulley; 33, large tow truck; 34, buffer layer; 35, sealing plate; 36, spring telescopic rod; 37, first positioning block; 38, second positioning block; 39, telescopic rod; 40, positioning rod; 41, telescopic chamber; 42, compression spring. DETAILED DESCRIPTION

[0033] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0034] Embodiment: A small automated tow truck, such as Figure 1-12As shown, it includes a chassis support 1, and walking tracks 2 are arranged on both sides of the chassis support 1, wherein a power device 23 is arranged on the chassis support 1, which is the source of all power provided by the present invention, and is mainly used for its own driving and the operation of the hydraulic system. A main board 3 is arranged above the chassis support 1, and the tail of the main board 3 is hinged to the chassis support 1, and a main hydraulic rod 4 is arranged between the bottom of the main board 3 and the chassis support 1, and the bottom of the main hydraulic rod 4 is hinged to the surface of the chassis support 1, and the extended end of the main hydraulic rod 4 is hinged to the bottom of the main board 3; a sub-plate 5 is hinged at the tail of the main board 3 (the tail refers to one end of the front baffle 16), and a sub-hydraulic rod 6 is arranged between the sub-plate 5 and the main board 3; the top end of the sub-hydraulic rod 6 is hinged to the sub-plate 5 via a hinge block, and the base of the sub-hydraulic rod 6 is hinged to the main board 3 via a hinge block. A first card slot 7 is provided on the inner side of the sub-plate 5 (the inner side refers to the side close to the chassis support 1); a slide slot 8 is provided on the outer side of the sub-plate 5 (the outer side refers to the side away from the chassis support 1), a card plate 9 is provided in the slide slot 8, and a second card slot 10 is provided on the card plate 9; a screw rod 11 is provided in the slide slot 8, and a threaded hole matching the screw rod 11 is provided on the card plate 9, and a servo motor 13 is provided on the sub-plate 5, and the output shaft of the servo motor 13 is connected to the shaft end of the screw rod 11; a plurality of first visual probes 14 are provided on the inner side of the sub-plate 5, and the Two first visual probes 14 are provided and are respectively distributed at the two ends of the first card slot 7. The card plate 9 is provided with a second visual probe 15. The first visual probe 14 is used to monitor the position of the outer skirt of the car 22 in real time. After the system performs image processing in the background, it is determined whether the tow truck of the present invention has deviated during the movement. The main function of the second visual probe 15 is to monitor the relative position of the inner skirt of the car 22 and the sub-board 5 in real time. When the tow truck is stationary, the second visual probe 15 is detecting while the card plate 9 moves in the slide slot 8. When the card plate 9 moves to the position just below the inner skirt of the car 22, that is, when the second card slot 10 is aligned with the inner skirt of the car 22, it stops immediately; the front end of the main board 3 is provided with a front baffle 16 (the front end refers to the end away from the sub-board 5), and the front baffle 16 is provided with a winch 17; the front baffle 16 is provided with a first fixed pulley 18 and an adjustable fixed pulley 19, and the winch 17 is provided with a steel wire traction rope 20 that bypasses the first fixed pulley 18 and the adjustable fixed pulley 19, and the end of the steel wire traction rope 20 is provided with a hook 21. The present invention provides a walking track 2 on the chassis support 1, so that there will be no slipping and idling during the walking process, so that it has the characteristics of being able to walk and transport independently, and it is small in size and can enter places that large tow trucks cannot reach, and transport vehicles parked in small spaces such as underground garages or sideways on the roadside.The present invention provides a main board 3 on a chassis support 1, and a sub-board 5 is hinged at the rear of the main board 3. When the automobile 22 is transported, if there are no obstacles on the front and rear sides of the automobile 22, after the automobile 22 is aligned with the main board 3 and the sub-board 5, the main hydraulic rod 4 and the sub-hydraulic rod 6 can be controlled to change the inclination state of the main board 3 and the sub-board 5, and the steel wire traction rope 20 is fixed to the body of the transported automobile 22. Then the winch 17 works, and the steel wire traction rope 20 is used to drag the automobile onto the main board 3, thereby completing the transport of the automobile 22. When there are obstacles at the front and rear ends of the consigned car 22, the main hydraulic rod 4 and the auxiliary hydraulic rod 6 are controlled to change the inclination state of the main board 3 and the auxiliary board 5, and the chassis support 1 is driven by the walking track 2 to adjust the position of the main board 3 and the auxiliary board 5 until the auxiliary board 5 is perpendicular to the axial direction of the consigned car 22, and then the chassis support 1 is driven by the walking track 2 to extend the auxiliary board 5 to the bottom of the consigned car 22, and then under the monitoring of the first visual probe 14 and the second visual probe 15, when the first slot 7 and the second slot 10 are respectively aligned with the outer skirt and the inner skirt of the consigned car 22, the auxiliary hydraulic rod 6 is driven to drive the auxiliary board 5 to lift, so that the outer skirt and the inner skirt of the consigned car 22 are respectively embedded in the first slot 7 and the second slot 10, so as to achieve the positioning of the car 22, so that when the car 22 is lifted laterally, the car 22 will not slide off the auxiliary board 5. In addition, a slide groove 8 is provided on the front side of the sub-plate 5 in the present invention, a card plate 9 is provided in the slide groove 8, and a second card groove 10 is provided on the card plate 9; a screw rod 11 is provided in the slide groove 8, and a threaded hole matching with the screw rod 11 is provided on the card plate 9; a servo motor 13 is provided on the sub-plate 5, and the output shaft of the servo motor 13 is connected to the shaft end of the screw rod 11. The screw rod 11 can be driven to rotate by the servo motor 13, and then the card plate 9 can be driven to move along the slide groove 8 to adjust the spacing between the second card groove 10 and the first card groove 7 to meet the lifting requirements of cars 22 with different side skirt widths.

[0035] The main board 3 and the auxiliary board 5 are provided with roller grooves on both sides, and a plurality of rollers 24 are provided in the roller grooves; during the traction process, the vehicle wheels do not roll on the main board 3 and the auxiliary board 5, thereby avoiding damage to the vehicle drive system.

[0036] A counterweight block 25 is provided below the front end of the chassis support 1 to ensure that the machine always maintains front-to-back balance before, during and after the operation.

[0037] An electric control cabinet 26 is provided on the chassis support 1, and the winch 17, the main hydraulic rod 4, the auxiliary hydraulic rod 6, the servo motor 13, the first visual probe 14 and the second visual probe 15 are all electrically connected to the control circuit board; the control circuit board is connected to the remote control 27 through a cable; the operation of each power device can be manually controlled by the remote control 27, and there is no need to set up an operating room, which effectively reduces the overall volume.

[0038] like Figure 6 As shown, the adjustable fixed pulley 19 includes a pair of first limiting slide rails 28 horizontally arranged on the front baffle 16, each first limiting slide rail 28 is respectively provided with a limiting slider 29, a vertically arranged second limiting slide rail 30 is provided between the two limiting sliders 29, and the limiting slider 29 is provided with a first positioning bolt that interferes with the first limiting slide rail 29; a mounting base 31 is slidably provided on the second limiting slide rail 30, and a second fixed pulley 32 is provided on the mounting base 31; a second positioning bolt that interferes with the second limiting slide rail 30 is provided on the mounting base 31; the position of the adjustable fixed pulley 19 can be adjusted up, down, left and right, so that the wire traction rope 20 remains parallel to the main board 3.

[0039] The first card slot 7 and the second card slot 10 are both inverted trapezoidal slots.

[0040] The first card slot 7 is provided with a buffer layer 34 , which is a rubber layer and has a wear-resistant effect. In addition, a buffer layer 34 is also provided on the side wall of the second card slot 10 .

[0041] like Figure 7 and Figure 8 As shown, the card plate 9 is provided with a closing mechanism, and the closing mechanism includes a closing plate 35 hinged on both sides of the second card slot 10 and opened, and a spring telescopic rod 36 is provided between the closing plate 35 and the side wall of the second card slot, and the spring telescopic rod 36 includes a first positioning block 37 arranged on the bottom side of the closing plate 35 and a second positioning block 38 arranged on the side wall of the second card slot 10, a telescopic rod 39 is hinged on the first positioning block 37, and a positioning rod 40 is hinged on the second positioning block 38, and a telescopic cavity 41 is provided in the positioning rod 40, and the telescopic cavity 41 is provided in the positioning rod 40. The end of the retractable rod 39 extends into the telescopic cavity 41, and a compression spring 42 is provided between the bottom side of the telescopic cavity 41 and the telescopic rod 39. The resetting property of the compression spring 42 in the spring telescopic rod 36 in the closing mechanism is utilized to realize the automatic closing of the sealing plate 35 to close the second card slot 10, so as to prevent solid hard objects from entering the second card slot 10 during use, which may cause damage to the inner skirt of the car 22 when the car 22 is lifted. A rubber anti-wear layer is provided on the outer side of the sealing plate 35 to effectively prevent it from scratching the car 22.

[0042] The slot wall of the second slot 10 is provided with a receiving slot corresponding to the closing mechanism.

[0043] like Fig.11 As shown, in actual use, it can also be used in conjunction with a large tow truck 33.

[0044] Working principle: The present invention provides a main board 3 on the chassis support 1, and a sub-board 5 is hinged at the rear of the main board 3. When the automobile 22 is transported, if there are no obstacles on the front and rear sides of the automobile 22, after the automobile 22 is aligned with the main board 3 and the sub-board 5, the main hydraulic rod 4 and the sub-hydraulic rod 6 can be controlled to change the inclination state of the main board 3 and the sub-board 5, and the steel wire traction rope 20 is fixed to the body of the transported automobile 22. Then the winch 17 works, and the steel wire traction rope 20 is used to drag the automobile onto the main board 3 to complete the transport of the automobile 22. When there are obstacles at the front and rear ends of the consigned car 22, the consigned car 22 needs to be lifted laterally. The main hydraulic rod 4 and the auxiliary hydraulic rod 6 can be controlled to change the tilting state of the main board 3 and the auxiliary board 5. The chassis support 1 is driven by the walking track 2 to adjust the position of the main board 3 and the auxiliary board 5 until the auxiliary board 5 is perpendicular to the axial direction of the consigned car 22. Then, the chassis support 1 is driven by the walking track 2 to extend the auxiliary board 5 into the bottom of the consigned car 22. Then, under the monitoring of the first visual probe 14 and the second visual probe 15, when the first card slot 7 and the second card slot 10 are respectively aligned with the outer skirt and the inner skirt of the consigned car 22, the auxiliary hydraulic rod 6 is driven to drive the auxiliary board 5 to lift, so that the outer skirt and the inner skirt of the consigned car 22 are respectively embedded in the first card slot 7 and the second card slot 10, so as to achieve the positioning of the car 22, so that when the car 22 is lifted laterally, the car 22 will not slide off the auxiliary board 5. In addition, a slide groove 8 is provided on the front side of the sub-plate 5 in the present invention, a card plate 9 is provided in the slide groove 8, and a second card groove 10 is provided on the card plate 9; a screw rod 11 is provided in the slide groove 8, and a threaded hole matching with the screw rod 11 is provided on the card plate 9; a servo motor 13 is provided on the sub-plate 5, and the output shaft of the servo motor 13 is connected to the shaft end of the screw rod 11. The screw rod 11 can be driven to rotate by the servo motor 13, and then the card plate 9 can be driven to move along the slide groove 8 to adjust the spacing between the second card groove 10 and the first card groove 7 to meet the lifting requirements of cars 22 with different side skirt widths.

Claims

1. A small automated tow truck, characterized in that: The invention comprises a chassis support (1), wherein walking tracks (2) are arranged on both sides of the chassis support (1), a main board (3) is arranged above the chassis support (1), the tail of the main board (3) is hinged to the chassis support (1), a main hydraulic rod (4) is arranged between the bottom of the main board (3) and the chassis support (1), the bottom of the main hydraulic rod (4) is hinged to the surface of the chassis support (1), and the extended end of the main hydraulic rod (4) is hinged to the bottom of the main board (3); a sub-board (5) is hinged to the tail of the main board (3), and a sub-hydraulic rod (6) is arranged between the sub-board (5) and the main board (3), The bottom of the auxiliary hydraulic rod (6) is hinged to the bottom of the main plate (3), and the protruding end of the auxiliary hydraulic rod (6) is hinged to the bottom of the auxiliary plate (5); the inner side of the auxiliary plate (5) is provided with a first clamping groove (7); the outer side of the auxiliary plate (5) is provided with a slide groove (8), a clamping plate (9) is provided in the slide groove (8), and a second clamping groove (10) is provided on the clamping plate (9); a screw rod (11) is provided in the slide groove (8), and a threaded hole matching the screw rod (11) is provided on the clamping plate (9); a servo motor (13) is provided on the auxiliary plate (5), and the servo motor (13) is provided with a screw rod (11). The output shaft is connected to the shaft end of the screw rod (11); a front baffle (16) is provided at the front end of the main board (3); a winch (17) is provided on the front baffle (16); a first fixed pulley (18) and an adjustable fixed pulley (19) are provided on the front baffle (16); a steel wire traction rope (20) passing around the first fixed pulley (18) and the adjustable fixed pulley (19) is provided on the winch (17); a hook (21) is provided at the end of the steel wire traction rope (20); the adjustable fixed pulley (19) comprises a pair of A first limiting slide rail (28), each of which is provided with a limiting slider (29), a second limiting slide rail (30) vertically arranged between the two limiting sliders (29), the limiting slider (29) being provided with a first positioning bolt that abuts against the first limiting slide rail (28); a mounting base (31) slidingly provided on the second limiting slide rail (30), the mounting base (31) being provided with a second fixed pulley (32); and a second positioning bolt abutting against the second limiting slide rail (30);The card plate (9) is provided with a closing mechanism, the closing mechanism comprising a closing plate (35) hingedly connected to both sides of the second card slot (10) and split into two halves, a spring telescopic rod (36) being provided between the closing plate (35) and the side wall of the second card slot (10), the spring telescopic rod (36) comprising a first positioning block (37) provided on the bottom side of the closing plate (35) and a second positioning block (38) provided on the side wall of the second card slot (10), a telescopic rod (39) being hingedly connected to the first positioning block (37), a positioning rod (40) being hingedly connected to the second positioning block (38), a telescopic cavity (41) being provided in the positioning rod (40), an end of the telescopic rod (39) extending into the telescopic cavity (41), a compression spring (42) being provided between the bottom side of the telescopic cavity (41) and the telescopic rod (39). ; 2. The small-sized automated tow truck according to claim 1, characterized in that: Roller grooves are respectively provided on both sides of the main plate (3) and the auxiliary plate (5), and a plurality of rollers (24) are provided in the roller grooves.

3. The small automated tow truck according to claim 1, characterized in that: A counterweight block (25) is provided below the front end of the chassis support (1).

4. The small automated tow truck according to claim 1, characterized in that: An electric control cabinet (26) is provided on the chassis support (1), a control circuit board is provided in the electric control cabinet (26), the hoist (17), the main hydraulic rod (4), the auxiliary hydraulic rod (6), and the servo motor (13) are all electrically connected to the control circuit board; the control circuit board is connected to a remote controller (27) via a cable.

5. The small-sized automated tow truck according to claim 1, characterized in that: The first clamping slot (7) and the second clamping slot (10) are both inverted trapezoidal slots.

6. The small automated tow truck according to claim 1, characterized in that: A buffer layer (34) is provided on the side wall of the first clamping slot (7), and the buffer layer (34) is a rubber layer.

7. The small automated tow truck according to claim 1, characterized in that: A receiving groove corresponding to the closing mechanism is provided on the groove wall of the second clamping groove (10).

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