Automatic tarpaulin system of carriage

Abstract

The utility model relates to the field of freight transfer auxiliary devices, in particular to an automatic tarpaulin system of a carriage, which comprises a carriage, and the carriage comprises a front plate arranged in the front, side plates arranged on two sides, a rear plate arranged in the rear and a bottom plate arranged on the bottom surface. Driving parts of the tarpaulin system are arranged at the front end and on the two sides of the carriage, the driving parts are arranged on the front plate and the side plates on the two sides, and each driving part comprises a tarpaulin roll automatic rotating assembly and a tarpaulin unfolding and folding driving assembly; a tarpaulin end traction assembly is arranged at the head of the tarpaulin, the tarpaulin end traction assembly is arranged on a tarpaulin unfolding and folding driving assembly, tarpaulin guiding and stabilizing assemblies are further arranged on a front plate, side plates and a rear plate of the carriage, a first induction set is arranged on the side plates on the two sides close to the front plate, and a second induction set is arranged on the side plates on the two sides close to the rear plate. The device is used for sensing the in-place operation condition of the tarpaulin end traction assembly, and stable operation is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of freight transfer auxiliary devices, in particular to an automatic tarpaulin system for a carriage. Background Art

[0002] During the production and transportation process, some component products need to be hoisted into a transport vehicle for transportation. When hoisting these component products, the top of the carriage needs to be open. After the components are loaded onto the vehicle, it is necessary to manually cover the top of the carriage with a tarpaulin and cover it tightly to prevent dust and foreign objects from entering the carriage. Relying on manual covering of the tarpaulin requires the cooperation of multiple people and takes a long time. Summary of the Invention

[0003] In order to overcome the disadvantages and deficiencies existing in the prior art, the purpose of the utility model is to provide an automatic tarpaulin system for a carriage, which can automatically cover the top of the carriage, cover it tightly, save labor input and save covering time.

[0004] The technical solution adopted by the utility model is as follows:

[0005] An automatic tarpaulin system for a carriage includes a carriage, which includes a front plate arranged at the front, side plates arranged on both sides, a rear plate arranged at the rear, and a bottom plate arranged at the bottom. A driving component is arranged at the front end of the carriage, and the driving component includes a tarpaulin roll automatic rotation component and a tarpaulin unfolding and contracting driving component.

[0006] The tarpaulin roll automatic rotation component includes an electric roller, the electric roller is suspended at the top of the front plate, the two shaft ends of the electric roller are provided with first bearing seats, and a tarpaulin roll is sleeved on the electric roller.

[0007] The tarpaulin unfolding and contracting driving component is arranged below the tarpaulin roll automatic rotation component. The tarpaulin unfolding and contracting driving component is a chain drive system, which includes an intermediate driving component and side driving components. The intermediate driving component is a motor sprocket driving device, which is arranged on the front side surface of the front plate. There are two groups of side driving components, which are respectively arranged on the outer side surfaces of the two side plates. A tarpaulin end traction component is straddled on the two groups of side driving components.

[0008] The tarpaulin end traction component includes a traction plate, the traction plate is straddled on the top of the carriage, and the traction plate is fixedly arranged with the tarpaulin head of the tarpaulin roll.

[0009] Tarpaulin guiding and stabilizing components for guiding and stabilizing the tarpaulin are also arranged on the front plate, side plates and rear plate.

[0010] The side driving component includes a third sprocket arranged at the head of the carriage and a fourth sprocket group arranged at the tail of the carriage. The third sprocket and the fourth sprocket group are matched. A transmission chain is wound around the third sprocket and the fourth sprocket group, and a chain side plate is also arranged on the transmission chain.

[0011] A first chain support plate and a second chain support plate are also provided between the third sprocket and the fourth sprocket set. A first chain guide platform is provided on the first chain support plate, and a second chain guide platform is provided on the second chain support plate.

[0012] The traction plate includes a portal frame. Below the middle cross plate of the portal frame, there is a tarpaulin fixing boss. On both sides of the middle cross plate, there are top pulley mounting grooves, which are located on both sides of the tarpaulin fixing boss. Top pulleys are arranged in the top pulley mounting grooves. On the vertical plates on both sides of the portal frame, there are side pulley mounting grooves, and side pulleys are arranged in the side pulley mounting grooves. The bottom parts of the vertical plates on both sides of the portal frame extend outward to form extension fixing plates, and the extension fixing plates are fixedly arranged on the chain side plates.

[0013] A reinforcing plate is fixedly arranged at the starting end of the tarpaulin roll, and the tarpaulin fixing boss is fixedly arranged below the reinforcing plate.

[0014] The tarpaulin guiding and stabilizing assembly includes a front-end guiding plate, a first side guiding plate, a second side guiding plate, and a tail-end limiting plate. The front-end guiding plate is fixedly arranged on the front plate. The front-end guiding plate is a long-shaped plate, and a guiding groove is penetrated through it. The tarpaulin is threaded through the guiding groove. The first side guiding plate and the second side guiding plate are arranged on the side plates on both sides. The first side guiding plate is a long-shaped plate, and a U-shaped guiding groove is penetrated through it along the length direction. The two side edges of the tarpaulin are threaded through the U-shaped guiding groove. The tail-end limiting plate is a Z-shaped plate structure, including a bottom horizontal plate and a top horizontal plate. The bottom horizontal plate is fixedly arranged on the rear plate, and the top horizontal plate is suspended on the carriage.

[0015] An arc edge is arranged around the slot opening of the guiding groove.

[0016] A sliding groove is also arranged on the top plane of the first side guiding plate, and the sliding groove is matched with the top pulley.

[0017] A reversing roller is arranged in front of the front-end guiding plate. The reversing roller is arranged below the electric roller. The two shaft ends of the reversing roller are arranged on the first bearing seats, and the height of the reversing roller is matched with the height of the guiding groove.

[0018] A first induction group is arranged on the side plates on both sides near the front plate, and a second induction group is arranged on the side plates on both sides near the rear plate.

[0019] The beneficial effects of the present utility model:

[0020] An automatic tarpaulin system for a carriage of the present utility model is provided with a driving component on the front board of the carriage. The driving component includes an automatic rotating component for the tarpaulin roll and a driving component for tarpaulin unfolding and retracting. The automatic rotating component for the tarpaulin roll is set as an electric roller drive to unwind and wind the tarpaulin. The driving component for tarpaulin unfolding and retracting is set as a sprocket drive system to drive the unwound tarpaulin from the head of the carriage to the tail of the carriage 1 or drive the wound tarpaulin from the tail of the carriage to the head of the carriage. A tarpaulin end traction component is arranged at the head of the tarpaulin, and the tarpaulin end traction component is arranged on the driving component for tarpaulin unfolding and retracting. Tarpaulin guiding and stabilizing components are also arranged on the front board, side boards and rear board of the carriage to make the tarpaulin laid flat and smoothly on the top of the carriage and covered stably. A first induction group is arranged at the side boards near the front board on both sides, and a second induction group is arranged at the side boards near the rear board on both sides to sense the running in-place situation of the tarpaulin end traction component and ensure stable operation. The system has a simple structure, is easy to operate, saves manpower and time. Brief Description of the Drawings

[0021] To make the above objects, features and advantages of the present utility model more obvious and understandable, the following preferred embodiments are specifically given below and are combined with the attached drawings. However, the embodiments in the drawings do not constitute any limitation to the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to the following drawings without creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure;

[0023] Figure 2 It is a schematic diagram of the structure of the automatic rotating component for the tarpaulin roll and the driving component for tarpaulin unfolding and retracting;

[0024] Figure 3 It is a schematic diagram of the driving component for tarpaulin unfolding and retracting and the first induction group;

[0025] Figure 4 It is a schematic diagram of the tarpaulin end traction component;

[0026] Figure 5 Schematic diagram of the installation and cooperation structure of the tarpaulin end traction component;

[0027] Figure 6 It is a schematic diagram of the front end guide plate structure;

[0028] Figure 7 It is a schematic diagram of the first side guide plate and the head of the tarpaulin roll;

[0029] Figure 8 It is a schematic diagram of the tail end limit plate and the second induction group;

[0030] Figure 9 It is a schematic diagram of the installation structure of the front end guide plate and the reversing roller.

[0031] In the figure: 1 - carriage, 101 - front plate, 102 - rear plate, 103 - side plate, 104 - bottom plate, 2 - tarp roll automatic rotation assembly, 201 - electric roller, 202 - first bearing seat, 203 - tarp roll baffle, 204 - mounting seat, 3 - tarp unfolding and retracting drive assembly, 301 - mounting chassis, 302 - motor, 303 - first sprocket, 304 - second bearing seat, 305 - transmission shaft, 306 - second sprocket, 307 - third sprocket, 308 - fourth sprocket group, 309 - first chain support plate, 3091 - first chain guide platform, 310 - second chain support plate, 3101 - second chain guide platform, 311 - transmission chain, 312 - chain side plate, 4 - tarp end traction assembly, 401 - traction plate, 4011 - gantry frame, 4012 - tarp fixing boss, 4013 - extension fixing plate, 4014 - top pulley mounting groove, 4015 - side pulley mounting groove, 402 - top pulley, 403 - side pulley, 5 - reversing roller, 6 - tarp guiding and stabilizing assembly, 601 - front end guiding plate, 6011 - guiding groove, 6012 - arc edge, 602 - first side guiding plate, 6021 - sliding groove, 6022 - U-shaped guiding groove, 603 - second side guiding plate, 604 - tail end limiting plate, 7 - tarp roll, 701 - reinforcing plate, 8 - first induction group, 801 - first inductor, 802 - first inductor mounting plate, 9 - second induction group, 901 - second inductor, 902 - second inductor mounting plate. Detailed implementation manners

[0032] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

[0033] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limited conditions under which the present invention can be implemented. Therefore, they do not have technical essential significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present invention can produce and the objectives that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present invention.

[0034] As Figure 1As shown in the figure, an automatic tarpaulin system for a carriage includes a carriage 1, which includes a front panel 101 provided at the front, side panels 103 provided on both sides, a rear panel 102 provided at the rear, and a bottom panel 104 provided on the bottom surface. Driving components of the tarpaulin system are provided at the front end and both sides of the carriage 1, and the driving components are provided on the front panel 101 and the side panels 103 on both sides. The driving components include an automatic tarpaulin roll rotation assembly 2 and a tarpaulin unfolding and retracting driving assembly 3. The automatic tarpaulin roll rotation assembly 2 is used to unwind and wind the tarpaulin, and the tarpaulin unfolding and retracting driving assembly 3 is used to drive the unwound tarpaulin from the head of the carriage 1 to the tail of the carriage 1 or drive the wound tarpaulin from the tail of the carriage 1 to the head of the carriage 1. A tarpaulin end traction assembly 4 is provided at the head of the tarpaulin, and the tarpaulin end traction assembly 4 is provided on the tarpaulin unfolding and retracting driving assembly 3 to traction the head of the tarpaulin from the head of the carriage 1 to the tail of the carriage 1 or traction the wound tarpaulin from the tail of the carriage 1 to the head of the carriage 1. A tarpaulin guiding and stabilizing assembly 6 is further provided on the front panel 101, side panels 103, and rear panel 102 of the carriage 1, which is used to make the tarpaulin be laid smoothly and flatly on the top of the carriage 1 and be covered and stabilized.

[0035] As Figure 2 shown in the figure, the automatic tarpaulin roll rotation assembly 2 straddles the front end of the carriage 1 and is provided on the front panel 101. It includes an electric roller 201. The two shaft ends on both sides of the electric roller 201 are provided with first bearing seats 202. The first bearing seats 202 are fixedly arranged on the mounting seat 204. A tarpaulin roll 7 is threaded through the electric roller 201. Tarpaulin roll baffles 203 are provided at both ends of the tarpaulin roll 7, and the tarpaulin roll baffles 203 are arranged on the electric roller 201. The tarpaulin roll 7 can be automatically unwound and wound as the electric roller 201 rotates.

[0036] As Figure 2As shown in the figure, the tarpaulin unfolding and retracting drive assembly 3 is a chain drive assembly, which is arranged below the tarpaulin roll automatic rotation assembly 2 and includes an intermediate drive component and side drive components; the intermediate drive component is arranged on the front side of the front plate 101, and there are two groups of side drive components, which are respectively arranged on the outer sides of the side plates 103 on both sides; the intermediate drive component includes a mounting chassis 301, the mounting chassis 301 is fixedly arranged on the front plate 101, a motor 302 is arranged in the middle of the mounting chassis 301, a first sprocket 303 is arranged at the output shaft end of the motor 302, a transmission shaft 305 is arranged above the motor 302, a second bearing seat 304 is penetrated on the transmission shaft 305, the second bearing seat 304 is fixedly arranged on the front plate 101, a second sprocket 306 is also penetrated on the transmission shaft 305, the second sprocket 306 is arranged in a matching manner with the first sprocket 303, and a chain is wound thereon, and the motor 302 drives the transmission shaft 305 to rotate. One group of side drive components is arranged at each of the two side ends of the transmission shaft 305. The side drive component includes a third sprocket 307, the third sprocket 307 is fixedly arranged at the two side shaft ends of the transmission shaft 305, a fourth sprocket group 308 is arranged in a matching manner with the third sprocket 307, the fourth sprocket group 308 is arranged on the side plate 103 and is located at the tail end of the carriage 1, and a transmission chain 311 is wound around the third sprocket 307 and the fourth sprocket group 308; As Figure 3 shown in the figure, a first chain support plate 309 and a second chain support plate 310 are also arranged between the third sprocket 307 and the fourth sprocket group 308 for supporting the transmission chain 311 wound therebetween. The first chain support plate 309 is arranged above the second chain support plate 310. The first chain support plate 309 is used for supporting the upper transmission section of the transmission chain 311, and the second chain support plate 310 is used for supporting the lower return section of the transmission chain 311; a first chain guide platform 3091 is arranged on the first chain support plate 309, a second chain guide platform 3101 is arranged on the second chain support plate 310, and the first chain guide platform 3091 and the second chain guide platform 3101 are used for guiding the transmission chain 311; a chain side plate 312 is also arranged on the transmission chain 311, and the chain side plate 312 is arranged on the upper transmission section of the transmission chain 311 for fixedly arranging the tarpaulin end traction assembly 4.

[0037] As Figure 7 shown in the figure, a reinforcing plate 701 is fixedly arranged at the starting end of the tarpaulin roll 7, so that the starting end is not easily damaged and is easy to fix and tow.

[0038] As Figure 4 、 Figure 5As shown in the figure, the tarp end traction assembly 4 includes a traction plate 401. The traction plate 401 includes a portal frame 4011, a tarp fixing boss 4012, and an extended fixing plate 4013. A tarp fixing boss 4012 is provided below the middle cross plate of the portal frame 4011. The lower part of the tarp fixing boss 4012 is fixedly arranged with a reinforcing plate 701 provided at the starting end of the tarp roll 7. Top pulley mounting grooves 4014 are provided on the middle cross plates on both sides of the tarp fixing boss 4012. Top pulleys 402 are arranged in the top pulley mounting grooves 4014. Side pulley mounting grooves 4015 are provided on the vertical plates on both sides of the portal frame 4011. Side pulleys 403 are arranged in the side pulley mounting grooves 4015. Extended fixing plates 4013 extend outward from the bottoms of the vertical plates on both sides of the portal frame 4011. The extended fixing plates 4013 are fixedly arranged on the chain side plates 312. The chain side plates 312 move with the transmission chain 311. The traction plate 401 drags the end part of the tarp roll 7 to move.

[0039] As Figure 1 shown in the figure, the tarp guiding and stabilizing assembly 6 includes a front-end guiding plate 601, a first side guiding plate 602, a second side guiding plate 603, and a tail-end limiting plate 604. The front-end guiding plate 601 is fixedly arranged on the front plate 101. As Figure 6 shown in the figure, the front-end guiding plate 601 is a long-shaped plate, and a guiding groove 6011 is provided through it. The slot gap size of the guiding groove 6011 is matched with the thickness size of the tarp roll 7. The head of the tarp roll 7 passes through the inside of the guiding groove 6011. Arc edges 6012 are provided around the slot opening of the guiding groove 6011 to reduce the wear of the tarp by the slot opening. The first side guiding plate 602 and the second side guiding plate 603 are arranged on the side plates 103 on both sides. As Figure 7 shown in the figure, the first side guiding plate 602 is a long-shaped plate, and a U-shaped guiding groove 6022 is provided through it along the length direction for guiding the two sides of the tarp roll 7. The two sides of the tarp are threaded into the U-shaped guiding groove 6022, which can prevent the two sides of the tarp from rising. As Figure 5 shown in the figure, the top pulley 402 is slidably arranged on the top plane of the first side guiding plate 602. A sliding groove 6021 is also provided on the top plane of the first side guiding plate 602. The sliding groove 6021 is matched with the top pulley 402. The sliding groove 6021 is used to limit the top pulley 402. As Figure 8 shown in the figure, the tail-end limiting plate 604 is a Z-shaped plate structure. The bottom cross plate is fixedly arranged on the rear plate 102, and the top cross plate is suspended above the carriage 1. When the traction plate 401 of the tarp end traction assembly 4 enters the space below the top cross plate, the top of the carriage 1 is blocked, and the tarp end traction assembly 4 stops running.

[0040] The second side guiding plate 603 and the first side guiding plate 602 are symmetrically structured parts, and will not be elaborated here.

[0041] When the tarpaulin roll 7 unrolls, the angle at which the tarpaulin enters the front guide plate 601 changes, and its force also changes. The same is true when the tarpaulin roll 7 rewinds. To ensure the stability of the tarpaulin during rewinding and unrolling, as Figure 1 , Figure 2 , a reversing roller 5 is provided in front of the front guide plate 601. The reversing roller 5 is arranged below the electric roller 201, and the two shaft ends of the reversing roller 5 are arranged on the first bearing seat 202; as Figure 9 shown, the tarpaulin enters the guide groove 6011 provided on the front guide plate 601 from below the reversing roller 5. The height of the reversing roller 5 is matched with that of the guide groove 6011 to ensure that the tarpaulin enters the guide groove 6011 horizontally from below the reversing roller 5.

[0042] As Figure 2 shown, a first induction group 8 is provided on the side plates 103 on both sides near the front plate 101, and a second induction group 9 is provided on the side plates 103 on both sides near the rear plate 102. The first induction group 8 and the second induction group 9 are used to sense the running-in place of the tarpaulin end traction assembly 4. As Figure 3 shown, the first induction group 8 includes a first inductor 801 and a first inductor mounting plate 802. The first inductor 801 is arranged on the first inductor mounting plate 802, and the first inductor mounting plate 802 is arranged on the first chain support plate 309; as Figure 8 shown, the second induction group 9 includes a second inductor 901 and a second inductor mounting plate 902. The second inductor 901 is arranged on the second inductor mounting plate 902, and the second inductor mounting plate 902 is arranged on the first chain support plate 309.

[0043] When the materials start to be loaded into the carriage 1, the top of the carriage 1 is in an open state, the tarpaulin roll 7 is in a rewound state, and the tarpaulin end traction assembly 4 is located at the front plate 101 of the carriage 1. After the materials are loaded onto the vehicle, the tarpaulin system starts to cover the open top of the carriage 1. The tarpaulin roll 7 starts to unroll, the automatic rotation assembly 2 of the tarpaulin roll starts to operate, the electric roller 201 is started, the tarpaulin roll 7 rotates for unrolling. At the same time, the tarpaulin unfolding and contracting drive assembly 3 starts to operate, the motor 302 is started, the transmission shaft 305 rotates, driving the third sprocket 307 to rotate, the transmission chain 311 starts to transmit, and the tarpaulin end traction assembly 4 provided on the chain side plate 312 operates. The traction plate 401 pulls the tarpaulin to start running towards the rear of the carriage 1. The two side edges of the tarpaulin slide along the U-shaped guide groove 6022, and the top pulley 402 and the side pulley 403 slide along the top surface and the side surface of the first side guide plate 602 and the second side guide plate 603. When the traction plate 401 enters the space below the top horizontal plate of the end limit plate 604, the second inductor 901 senses the in-place situation, the top of the carriage 1 is covered, and the automatic rotation assembly 2 of the tarpaulin roll and the tarpaulin unfolding and contracting drive assembly 3 stop operating, and the tarpaulin end traction assembly 4 stops operating.

[0044] When starting to unload the goods, the shielding tarpaulin needs to be removed. At this time, the tarpaulin roll 7 starts to be wound up, and the automatic rotating assembly 2 of the tarpaulin roll starts to operate. The electric roller 201 is started, and the tarpaulin roll 7 rotates for winding. At the same time, the tarpaulin unfolding and contracting drive assembly 3 starts to operate. The motor 302 is started, the transmission shaft 305 rotates, driving the third sprocket 307 to rotate, and the transmission chain 311 starts to transmit. The tarpaulin end traction assembly 4 provided on the chain side plate 312 operates, and the traction plate 401 pulls the tarpaulin to start running towards the front end of the carriage 1. The two side edges of the tarpaulin slide along the U-shaped guide grooves 6022. The top pulley 402 and the side pulley 403 slide along the top and side surfaces of the first side guide plate 602 and the second side guide plate 603. When the traction plate 401 reaches the front end guide plate 601, the first inductor 801 senses the arrival, and the shielding at the top of the carriage 1 is completed. The automatic rotating assembly 2 of the tarpaulin roll and the tarpaulin unfolding and contracting drive assembly 3 stop operating, and the tarpaulin end traction assembly 4 stops operating, waiting for unloading.

Claims

1. An automatic tarpaulin system for a carriage, comprising a carriage (1), the carriage (1) comprising a front plate (101) arranged at the front, side plates (103) arranged at both sides, a rear plate (102) arranged at the rear, and a bottom plate (104) arranged at the bottom surface, a driving component is arranged at the front end of the carriage (1), the driving component comprises a tarpaulin roll automatic rotation component (2), and a tarpaulin expansion and contraction driving component (3), characterized in that: The tarpaulin roll automatic rotation component (2) comprises an electric roller (201), the electric roller (201) being suspended on the top of the front plate (101), first bearing seats (202) being passed through the shaft ends on both sides of the electric roller (201), and a tarpaulin roll (7) being passed through the electric roller (201); The tarpaulin unfolding and retracting drive assembly (3) is arranged below the tarpaulin roll automatic rotation assembly (2). The tarpaulin unfolding and retracting drive assembly (3) is a chain drive system, comprising an intermediate drive component and a side drive component. The intermediate drive component is a motor sprocket drive device, which is arranged on the front side of the front plate (101). The side drive components are provided in two groups, which are respectively arranged on the outer sides of the side plates (103) on both sides. The two groups of side drive components are straddled by a tarpaulin end traction assembly (4); The tarpaulin end traction assembly (4) comprises a traction plate (401), the traction plate (401) being arranged across the top of the carriage (1), the traction plate (401) being fixedly arranged with the tarpaulin head of the tarpaulin roll (7); The front plate (101), the side plate (103) and the rear plate (102) are also provided with a tarpaulin guiding and stabilizing component (6) for guiding and stabilizing the tarpaulin.

2. The automatic tarpaulin system for a carriage according to claim 1, characterized in that: The side transmission component package comprises a third sprocket (307) arranged at the head of the carriage (1) and a fourth sprocket set (308) arranged at the rear of the carriage (1); the third sprocket (307) and the fourth sprocket set (308) are matched and arranged; a transmission chain (311) is wound around the third sprocket (307) and the fourth sprocket set (308); and a chain side plate (312) is also arranged on the transmission chain (311).

3. The automatic tarpaulin system for a carriage according to claim 2, characterized in that: A first chain support plate (309) and a second chain support plate (310) are also provided between the third sprocket (307) and the fourth sprocket set (308); a first chain guide platform (3091) is provided on the first chain support plate (309), and a second chain guide platform (3101) is provided on the second chain support plate (310).

4. The automatic tarpaulin system for a carriage according to claim 2, characterized in that: The traction plate (401) comprises a door-shaped frame (4011), a tarpaulin fixing boss (4012) is arranged below the middle horizontal plate of the door-shaped frame (4011), top pulley mounting grooves (4014) are arranged on both sides of the middle horizontal plate, the top pulley mounting grooves (4014) are located on both sides of the tarpaulin fixing boss (4012), top pulleys (402) are arranged in the top pulley mounting grooves (4014), side pulley mounting grooves (4015) are arranged on the vertical plates on both sides of the door-shaped frame (4011), side pulleys (403) are arranged in the side pulley mounting grooves (4015), and extension fixing plates (4013) are arranged at the bottom of the vertical plates on both sides of the door-shaped frame (4011) extending outwards, and the extension fixing plates (4013) are fixedly arranged on the chain side plates (312).

5. The automatic tarpaulin system for a carriage according to claim 4, characterized in that: A reinforcing plate (701) is fixedly arranged at the beginning of the tarpaulin roll (7), and the reinforcing plate (701) is fixedly arranged below the tarpaulin fixing boss (4012).

6. The automatic tarpaulin system for a carriage according to claim 4, characterized in that: The tarpaulin guiding and stabilizing component (6) comprises a front guide plate (601), a first side guide plate (602), a second side guide plate (603), and a rear end stop plate (604); the front guide plate (601) is fixedly arranged on the front plate (101); the front guide plate (601) is a long plate having a guide groove (6011) extending therethrough; the tarpaulin is inserted into the guide groove (6011); the first side guide plate (602) and the second side guide plate (603) are arranged on the side plates (103) on both sides; the first side guide plate (602) is a long plate having a U-shaped guide groove (6022) extending therethrough along the length direction; the two sides of the tarpaulin are inserted into the U-shaped guide groove (6022); the rear end stop plate (604) is a Z-shaped plate structure, comprising a bottom transverse plate and a top transverse plate; the bottom transverse plate is fixedly arranged on the rear plate (102); and the top transverse plate is suspended on the carriage (1).

7. The automatic tarpaulin system for a carriage according to claim 6, characterized in that: A circular arc edge (6012) is provided around the groove opening of the guide groove (6011).

8. The automatic tarpaulin system for a carriage according to claim 6, characterized in that: The top plane of the first side guide plate (602) is also provided with a slide groove (6021), and the slide groove (6021) is matched with the top pulley (402).

9. The automatic tarpaulin system for a carriage according to claim 6, characterized in that: A reversing roller (5) is arranged in front of the front guide plate (601); the reversing roller (5) is arranged below the electric roller (201); the shaft ends on both sides of the reversing roller (5) are arranged on the first bearing seat (202); and the height of the reversing roller (5) matches the height of the guide groove (6011).

10. The automatic tarpaulin system for a carriage according to claim 1, characterized in that: A first sensing group (8) is provided on the side panels (103) on both sides close to the front panel (101), and a second sensing group (9) is provided on the side panels (103) on both sides close to the rear panel (102).

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