Snow removing agent spreading device assembly and snow removing agent spraying trailer

Abstract

The utility model provides a snow removing agent spreading device assembly and a snow removing agent spraying trailer, and belongs to the technical field of snow removing agent spreading devices. The snow removing agent spreading device assembly comprises a frame body, a control device, an electric power device, a liquid storage tank, a water pump, a water cannon, a spray gun, a communicating pipe and a communicating hose are installed on the frame body, an inlet of the water pump communicates with an outlet of the liquid storage tank, and the water cannon is installed at the tail end of the frame body and communicates with an outlet of the water pump through the communicating pipe. The spray gun communicates with an outlet of the water pump through a communicating hose. The snow removing agent spreading device assembly can be installed on a vehicle, and two snow removing agent spraying modes of water cannon spraying and spray gun spraying are provided. The water cannon is used for spraying a snow removing agent to the road or the airport apron. The snow removing agent can be sprayed through the spray gun when facing complex terrain places such as gap areas below airport gallery bridge positions. And the snow removing agent spreading device assembly is mounted at the top of the unpowered tray to form the snow removing agent spraying trailer. When not used, the snow removing agent spraying trailer does not occupy a dragging vehicle and is convenient to store.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of snow-melting agent spreading device, more particularly to snow-melting agent spreading device assembly and snow-melting agent spraying trailer. BACKGROUND

[0002] In order to keep the road covered with snow unobstructed and ensure the safety of driving or taking off and landing of aircraft, snow-melting agent spreading vehicles are usually used to spray snow-melting agent on the road prone to snow.

[0003] In the prior art, a hitched snow-melting agent throwing device is disclosed in Chinese Utility Model Patent No. CN217352295U, which sprays liquid snow-melting agent on the road through the spray holes and nozzles on the throwing pipe. However, the spraying direction is fixed, and it can only be adjusted by adjusting the direction of the whole vehicle, so it cannot be applied to spraying operations in complex terrain such as the gap area under the airport corridor bridge machine position. For example, a vehicle-mounted liquid snow-melting agent spraying device is disclosed in Chinese Utility Model Patent No. CN222161081U, which adjusts the spraying position through a horizontally rotatable assembly bracket. However, since it only adjusts the horizontal position, it is difficult to extend the nozzle to the inside of the complex terrain that the vehicle cannot reach. The technical solutions of the above two disclosed patents can only spray through a single nozzle, and the application scenarios are limited. SUMMARY

[0004] To solve the problems of the prior art, the application provides a snow-melting agent spreading device assembly and a snow-melting agent spraying trailer, which can meet the spraying needs of normal road snow-melting agent and also can spray snow-melting agent in complex terrain where vehicles cannot enter.

[0005] To achieve the above-mentioned purpose, the technical solution of the application provides a snow-melting agent spreading device assembly, which comprises a frame main body, a control device, a power device, a liquid storage tank and a water pump are installed on the frame main body, the inlet of the water pump is communicated with the outlet of the liquid storage tank, the water pump is connected with the control device, and the water pump and the control device are both connected with the power device. It also includes a water cannon, a spray gun, a communication pipe and a communication hose, the water cannon is installed at the tail end of the frame main body and is communicated with the outlet of the water pump through the communication pipe, and the spray gun is communicated with the outlet of the water pump through the communication hose.

[0006] The snow-melting agent spreading device assembly can be installed on a vehicle and follow the vehicle to spray the snow-melting agent. The water cannon is installed at the tail end of the vehicle and located at the tail end of the whole vehicle after being installed on the vehicle to spray the snow-melting agent to the road or the apron behind. When facing complex terrains such as the gap area under the apron of an airport, the snow-melting agent can be sprayed through the spray gun. Since the spray gun is communicated with the outlet of the water pump through the hose, the spray gun can be pulled to any position to aim at the place where the snow-melting agent needs to be sprayed to ensure that the snow-melting agent is sprayed in place. Through the two ways of the water cannon and the spray gun, the snow-melting agent spreading device assembly can realize the spraying of the snow-melting agent to the normal road and the spraying of the snow-melting agent to the complex position where the vehicle is difficult to reach, thereby increasing the applicable range and being practical.

[0007] Optionally, the pipeline assembly further includes a liquid inlet pipe, a liquid collecting pipe, and a plurality of branch pipes, each of the branch pipes is independently communicated between the liquid inlet pipe and the liquid collecting pipe, and each of the branch pipes is provided with a control valve. The liquid collecting pipe has a first port and a second port. The liquid inlet pipe is communicated with the outlet of the water pump. The water cannon is communicated with the first port through a communication pipe. The spray gun is communicated with the second port through a communication hose. At this time, the water cannon and the spray gun are both communicated with the water pump through the plurality of branch pipes provided with the control valves. By controlling the opening of different numbers of branch pipes or the flow of different branch pipes, the adjustment of the flow of the water cannon and the spray gun at different gears can be realized.

[0008] Optionally, the pipeline assembly further includes a safety overflow valve connected with the control device. The safety overflow valve is installed on the liquid inlet pipe and located between the outlet of the water pump and the branch pipes. The top side of the liquid storage tank has a liquid return port. The overflow port of the safety overflow valve is communicated with the liquid return port. When the pressure at the outlet end of the water pump is too high, the snow-melting agent can flow back to the liquid storage tank through the safety overflow valve and the liquid return port to release the pressure.

[0009] The control valve includes a manual ball valve and an electromagnetic valve. The electromagnetic valve is located on the side of the manual ball valve away from the liquid inlet pipe and connected with the control device and the power device. The flow of the corresponding branch pipe can be adjusted through the manual ball valve on each branch pipe. The on-off function of the corresponding branch pipe can be realized through the electromagnetic valve on each branch pipe, so that the flow adjustment of the spray gun and the water cannon at different gears can be realized.

[0010] Optionally, the liquid return port is communicated with a branch pipe. The branch pipe has two branches. One of the branches is communicated with the overflow port of the safety overflow valve. The other branch is a free end and connected with a quick connector. The quick connector can be connected with the pipeline of an external liquid adding equipment to add the snow-melting agent into the liquid storage tank.

[0011] Optionally, the frame body is provided with an operation box, the operation box is provided with a power switch, a water pump switch and a flow rate knob, the power switch is connected with the power device through the control device, the water pump switch is connected with the water pump through the control device, and the flow rate knob is connected with the electromagnetic valve through the control device, so as to respectively realize starting and stopping of the power device, starting and stopping of the water pump and adjustment of the flow rate. The water cannon and the spray gun are each provided with a mechanical switch, and an operator controls opening and closing of the water cannon and the spray gun through the mechanical switch during operation.

[0012] Optionally, the frame body is further provided with an electric reel, and the communication hose is wound on the electric reel, so that the communication hose can be retracted and extended.

[0013] Optionally, the frame body is further provided with a cover shell, the control device, the power device, the liquid storage tank, the water pump, the spray gun, the communication pipe and the communication hose are covered in the cover shell, and protection is formed. The tail portion of the cover shell is provided with a water cannon operation table, the water cannon is located on the water cannon operation table, the edge of the water cannon operation table is surrounded by a guard plate, the guard plate is provided with a door body, and the cover shell is provided with a spraying operation door opposite to the position of the spray gun. When the entire snow-melting agent spreading device assembly is installed on a vehicle, the water cannon operation table is located at the tail portion of the vehicle. An operator enters the water cannon operation table through the door body and performs spraying operation by operating the water cannon. The guard plate prevents the operator from falling off the water cannon operation table. When the spray gun needs to be used, the spraying operation door is opened, and the spray gun can be pulled out.

[0014] Optionally, the outer side wall of the liquid storage tank is vertically communicated with a transparent liquid level pipe, and the outer side wall of the cover shell is provided with a liquid level observation window opposite to the transparent liquid level pipe. An operator can observe the liquid level in the transparent liquid level pipe through the liquid level observation window to know the amount of snow-melting agent in the liquid storage tank.

[0015] The top portion of the liquid storage tank is provided with a liquid adding opening, and the top portion of the cover shell is provided with a liquid adding communication opening communicated with the liquid adding opening. Snow-melting agent can be added into the liquid storage tank from the top portion through the liquid adding communication opening and the liquid adding opening. The outer side of the cover shell is provided with a ladder, which facilitates personnel to climb. The top portion of the cover shell is provided with a lifting ring, which facilitates hoisting and transferring of the entire snow-melting agent spreading device assembly. The side wall of the cover shell is provided with a ventilation opening, which facilitates ventilation and cooling of the internal equipment.

[0016] The frame body is further provided with a binding belt, and the top portion of the frame body is provided with a positioning block circumferentially distributed around the liquid storage tank and abutting against the liquid storage tank. The liquid storage tank is fixedly connected with the frame body through the binding belt. The liquid storage tank is positioned on the top portion of the frame body through the positioning block and is fixed with the frame body through the binding belt.

[0017] The snow-melting agent spraying trailer comprises a non-powered trailer plate with rollers and the snow-melting agent spraying device assembly shown in any one of the above, and the frame body is fixedly installed on the top of the non-powered trailer plate.

[0018] Optionally, a plurality of L-shaped hook plates are bolted to the circumferential bottom side of the frame body, the hook plates are hooked on the bottom of the non-powered trailer plate and are bolted to the non-powered trailer plate, and the top of the non-powered trailer plate is provided with a baffle abutting against the circumferential edge of the frame body, so that the snow-melting agent spraying device assembly is prevented from shaking on the top of the non-powered trailer plate.

[0019] The technical scheme of the present application has the following beneficial effects over the prior art:

[0020] The snow-melting agent spraying device assembly can be installed on a vehicle and follow the vehicle to perform snow-melting agent spraying operation. The snow-melting agent spraying device assembly provides two spraying modes of water cannon spraying and spray gun spraying. The water cannon is installed at the tail end and is located at the tail end of the whole vehicle after being installed on the vehicle, so as to spray snow-melting agent on the road or apron behind. When facing complex terrains such as the gap area under the apron bridge of an airport, the snow-melting agent can be sprayed through the spray gun. Since the spray gun is communicated with the outlet of the water pump through a hose, the spray gun can be pulled to any position to aim at the place where the snow-melting agent needs to be sprayed, so as to ensure that the snow-melting agent is sprayed in place. Through the two modes of water cannon spraying and spray gun spraying, the snow-melting agent can be sprayed on normal roads and in complex positions where vehicles are difficult to reach, so that the application range is increased and the practicality is high.

[0021] The snow-melting agent spraying device assembly is installed on the top of the non-powered trailer plate to form the snow-melting agent spraying trailer, and the snow-melting agent spraying trailer is connected to the non-powered trailer plate by a towing vehicle to tow the snow-melting agent spraying trailer. When not in use, the snow-melting agent spraying trailer does not occupy the towing vehicle and is convenient to store. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0023] Figure 1 It is an internal structure diagram of the snow-melting agent spraying device assembly.

[0024] Figure 2 Figure 1 is a schematic diagram of a snow-melting agent distribution device assembly snow-melting agent communication passage structure;

[0025] Figure 3 Figure 2 is a schematic diagram of a pipeline assembly structure;

[0026] Figure 4 Figure 3 is a schematic diagram of a snow-melting agent spraying trailer external structure;

[0027] Figure 5 Figure 4 is a schematic diagram of a cover structure;

[0028] Figure 6 Figure 5 is a schematic diagram of a liquid storage tank structure;

[0029] Figure 7 Figure 6 is a schematic diagram of a frame main body structure;

[0030] Figure 8 Figure 7 is a schematic diagram of a snow-melting agent spraying trailer overall structure side view;

[0031] Figure 9 Figure 8 is a schematic diagram of a hook plate structure;

[0032] Figure 10 Figure 9 is a schematic diagram of a non-powered tray structure.

[0033] Figure legend: 1, frame main body; 2, control device; 3, power device; 4, liquid storage tank; 41, liquid return port; 42, transparent liquid level tube; 43, liquid filling port; 5, water pump; 6, water cannon; 7, spray gun; 8, communication pipe; 9, communication hose; 10, pipeline assembly; 101, liquid inlet pipe; 102, liquid collection pipe; 103, branch pipe; 104, first port; 105, second port; 106, safety overflow valve; 107, manual ball valve; 108, electromagnetic valve; 11, branch pipe; 12, quick connector; 13, electric reel; 14, cover; 141, water cannon operation table; 142, guard plate; 143, door body; 144, spraying operation door; 145, observation window; 146, liquid filling communication port; 147, ladder; 148, lifting ring; 149, ventilation port; 15, binding belt; 16, positioning block; 17, non-powered tray; 18, hook plate; 19, baffle; 20, operation box. DETAILED DESCRIPTION

[0034] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below in conjunction with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0035] Example 1:

[0036] The present embodiment provides a snow-melting agent distribution device assembly based onFigure 1 As shown, it comprises a frame body 1, a control device 2, a power device 3, a liquid tank 4 and a water pump 5 are installed on the frame body 1. The liquid tank 4 is used to store liquid deicing agent. The power device 3 is used to provide power for the whole deicing agent spreading device assembly, which can be a battery pack or a generator set, etc. The inlet of the water pump 5 is communicated with the outlet of the liquid tank 4, the water pump 5 is connected with the control device 2, and the water pump 5 and the control device 2 are both connected with the power device 3. On the basis of the above structure, it further comprises a water cannon 6, a spray gun 7, a communication pipe 8 and a communication hose 9. The water cannon 6 is installed at the tail end of the frame body 1 and is communicated with the outlet of the water pump 5 through the communication pipe 8, and the spray gun 7 is communicated with the outlet of the water pump 5 through the communication hose 9. In this way, the deicing agent in the liquid tank 4 can enter the water cannon 6 and the spray gun 7 through the water pump 5 respectively.

[0037] The deicing agent spreading device assembly is installed on a vehicle during use and follows the vehicle to carry out deicing agent spraying operation. The water cannon 6 is installed at the tail end of the frame body 1, i.e. at the tail end of the whole vehicle after being installed on the vehicle, so as to direct the water cannon 6 towards the rear road or apron and spray deicing agent on the road or apron. When facing complex terrain such as the gap area under the airport corridor apron position, the spray gun 7 can be taken out. Since the spray gun 7 is communicated through the communication hose 9, the operator can manually move the spray gun 7 and aim at the area far away from the vehicle to spray deicing agent. The water cannon 6 and the spray gun 7 both have switches and can be selectively opened and closed. The deicing agent spreading device assembly has two spraying modes of the water cannon 6 and the spray gun 7, which can realize deicing agent spraying on normal road and in complex positions difficult to reach by the vehicle, thereby increasing the application range and having strong practicability.

[0038] Based on Figure 1 , Figure 2 and Figure 3As shown, the communication of the water pump 5 outlet with the water cannon 6 and the spray gun 7 is realized by the pipeline assembly 10. Specifically, the pipeline assembly 10 includes a liquid inlet pipe 101, a liquid collecting pipe 102, and a plurality of branch pipes 103. The number of branch pipes 103 can be three or four, etc. according to the number of required gears. In the embodiment, the number of branch pipes 103 is three. Each branch pipe 103 is independently communicated between the liquid inlet pipe 101 and the liquid collecting pipe 102, and is not connected to each other, and each branch pipe 103 is provided with a control valve. The liquid collecting pipe 102 has a first port 104 and a second port 105, the liquid inlet pipe 101 is communicated with the outlet of the water pump 5, the water cannon 6 is communicated with the first port 104 through the communication pipe 8, and the spray gun 7 is communicated with the second port 105 through the communication hose 9. In use, the snow-melting agent pumped out of the water pump 5 outlet passes through the liquid inlet pipe 101, the branch pipe 103 and the liquid collecting pipe 102 in turn and is distributed to the water cannon 6 and the spray gun 7 through the first port 104 and the second port 105 respectively. The plurality of branch pipes 103 are used for adjusting the flow rate of the gears. By controlling the opening of different numbers of branch pipes 103 or controlling the flow rate of different branch pipes 103, the flow rate adjustment of different gears of the water cannon 6 and the spray gun 7 can be realized. Among them, the control valve includes a manual ball valve 107 and a solenoid valve 108, the solenoid valve 108 is located on the side of the manual ball valve 107 away from the liquid inlet pipe 101, and the solenoid valve 108 is connected with the control device 2 and the power device 3. The maximum flow rate of the corresponding branch pipe 103 can be controlled through the manual ball valve 107 on each branch pipe 103, and the on-off function of the corresponding branch pipe 103 can be realized through the solenoid valve 108 on each branch pipe 103, so as to realize the flow rate adjustment of different gears of the spray gun 7 and the water cannon 6.

[0039] At the same time, the pipeline assembly 10 also includes a safety overflow valve 106, the safety overflow valve 106 is installed on the liquid inlet pipe 101 and located between the outlet of the water pump 5 and the branch pipe 103, the top side of the liquid storage tank 4 has a liquid return port 41, and the overflow port of the safety overflow valve 106 is communicated with the liquid return port 41. When the pressure at the outlet end of the water pump 5 is too high, the snow-melting agent can flow back to the liquid storage tank 4 through the safety overflow valve 106 and the liquid return port 41 to release pressure, avoiding leakage.

[0040] Based on Figure 1 and Figure 2 As shown, the liquid return port 41 is communicated with a branch pipe 11, the branch pipe 11 has two branches, one of which is communicated with the overflow port of the safety overflow valve 106, and the high-pressure snow-melting agent overflowing from the overflow port can flow back to the liquid return port 41 through this branch. The other branch is a free end and is connected with a quick connector 12. The quick connector 12 can be connected with the pipeline of the external liquid adding equipment to add snow-melting agent into the liquid storage tank 4 through the liquid return port 41.

[0041] In the embodiment, based on Figure 1The frame body 1 is provided with an operation box 20, which is provided with a power switch, a water pump switch and a flow rate knob. The power switch is connected with the power device 3 through the control device 2. The water pump switch is connected with the water pump 5 through the control device 2. The flow rate knob is connected with the electromagnetic valve 108 through the control device 2, so as to respectively realize the start-stop of the power device 3, the start-stop of the water pump 5 and the adjustment of the flow rate. The control device 2 adopts a common relay control box, which is internally provided with relays for controlling corresponding devices. The flow rate knob realizes the opening of different numbers of electromagnetic valves 108 when it is rotated to different gears, thereby realizing the adjustment of gears. The water cannon 6 and the spray gun 7 are each provided with a mechanical switch. When the power device 3 and the water pump 5 are turned on and the number of opened electromagnetic valves 108 is set, the operator controls the opening and closing of the water cannon 6 and the spray gun 7 through the corresponding mechanical switches.

[0042] Based on Figure 1 As shown, the frame body 1 is provided with an electric reel 13, and the communication hose 9 is wound on the electric reel 13, so as to realize the winding and unwinding of the communication hose 9.

[0043] Further, based on Figure 4 and Figure 5 As shown, the frame body 1 is provided with an electric reel 13, and the communication hose 9 is wound on the electric reel 13, so as to realize the winding and unwinding of the communication hose 9. The control device 2, the power device 3, the liquid storage tank 4, the water pump 5, the spray gun 7, the communication pipe 8, the communication hose 9, the control box 20 and the electric reel 13 are all covered in the cover shell 14, thereby forming protection. The tail part of the cover shell 14 is provided with a water cannon operation table 141, and the water cannon 6 is located on the water cannon operation table 141. The edge of the water cannon operation table 141 is surrounded by a guard plate 142, and the guard plate 142 is provided with a door body 143. When the whole snow-melting agent spreading device assembly is installed on a vehicle, the water cannon operation table 141 is located at the tail part of the vehicle. The operator enters the water cannon operation table 141 through the door body 143, and sprays through the operation of the water cannon 6. The guard plate 142 prevents the operator from falling off the water cannon operation table 141. The cover shell 14 is provided with a spraying operation door 144 opposite to the position of the spray gun 7. At the same time, the pipeline assembly 10 and the control box 20 are also opposite to the spraying operation door 144, so as to facilitate the operation. The position of the spraying operation door 144 can be set on the side or tail part of the cover shell 14 according to requirements, as long as it does not affect the operation. The spray gun 7 can be taken out for spraying operation by opening the spraying operation door 144. The operator can rotate the manual ball valve 107 through the spraying operation door 144, thereby realizing the control of the maximum flow rate of the corresponding branch pipe 103.

[0044] Based on Figure 5 and Figure 6As shown, a transparent liquid level tube 42 is vertically connected to the outer wall of the storage tank 4, and a liquid level observation window 145 opposite to the transparent liquid level tube 42 is provided on the outer wall of the cover 14. The operator can observe the liquid level in the transparent liquid level tube 42 through the liquid level observation window 145 to know the snow removal dosage in the storage tank 4. Based on Figure 1 , Figure 4 and Figure 5 As shown, the top of the storage tank 4 has a filling port 43, and the top of the cover 14 has a filling connection port 146 communicating with the filling port 43. De-icing agent can be added to the storage tank 4 from the top through the filling connection port 146 and the filling port 43. A ladder 147 is provided on the outside of the cover 14 for easy climbing. Lifting rings 148 are distributed on the top of the cover 14 to facilitate the hoisting and transfer of the entire de-icing agent spreading device assembly. Ventilation openings 149 are provided on the side walls of the cover 14 to achieve ventilation and cooling of the internal equipment. For easy maintenance, the side walls of the cover 14 are made of sheet metal fixed to the cover 14 by flat locks. The sheet metal can be removed at any time using the flat locks for maintenance of the internal equipment.

[0045] In this embodiment, based on Figure 1 and Figure 7 As shown, it also includes a strap 15, which can be made of steel. The top of the frame body 1 is provided with positioning blocks 16 that are distributed around the liquid storage tank 4 and abut against the liquid storage tank 4. The liquid storage tank 4 is positioned on the top of the frame body 1 through the positioning blocks 16, and the liquid storage tank 4 is fixedly connected to the frame body 1 through the straps 15.

[0046] In this embodiment, the de-icing agent spreading device assembly is installed on the vehicle. While the vehicle is in motion, the operator stands on the water cannon control platform 141 and sprays de-icing agent onto the road surface or apron behind the vehicle via the water cannon 6. When encountering locations that are difficult for the vehicle to reach, the operator takes out the spray gun 7 from the spraying operation door 144 and aims the spray gun 7 at the location where de-icing agent needs to be sprayed.

[0047] Example 2:

[0048] This embodiment provides a snow removal agent spraying trailer, based on Figure 4 and Figure 8 As shown, it includes a non-powered tray 17 with rollers and a snow removal agent spreading device assembly as shown in Embodiment 1, with the frame body 1 fixedly installed on the top of the non-powered tray 17.

[0049] based on Figure 8 , Figure 9 and Figure 10As shown, the circumferential bottom side of the frame body 1 is bolted with several L-shaped hook plates 18, which are hooked on the bottom of the unpowered tow plate 17 and bolted with the unpowered tow plate 17, so as to realize detachable connection between the frame body 1 and the unpowered tow plate 17. The top of the unpowered tow plate 17 is provided with a baffle 19 abutting against the circumferential edge of the frame body 1, which can avoid the snow-melting agent spreading device assembly from shaking on the top of the unpowered tow plate 17.

[0050] In use, the towing vehicle can directly connect the unpowered tow plate 17 to perform spraying operation. When used in an airport environment, the unpowered tow plate 17 can be set as a standard tow plate for airport aviation container transfer, and the unpowered tow plate 17 and the snow-melting agent spreading device assembly are in a split structure, which can be detached and stored from the unpowered tow plate 17 when not in use, so as not to occupy the vehicle and tow plate resources of the airport, and improve the use efficiency of the tow plate of the airport.

[0051] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A de-icing agent spreading device assembly, comprising a frame body, on which a control device, a power device, a liquid storage tank and a water pump are mounted, wherein the inlet of the water pump is connected to the outlet of the liquid storage tank, the water pump is connected to the control device, and both the water pump and the control device are connected to the power device; Its features are: It also includes a water cannon, a spray gun, a connecting pipe, and a connecting hose. The water cannon is installed at the rear end of the main frame and is connected to the outlet of the water pump through the connecting pipe. The spray gun is connected to the outlet of the water pump through the connecting hose.

2. The snow removal agent spreading device assembly as described in claim 1, characterized in that: It also includes a piping assembly, which includes an inlet pipe, a collecting pipe and several branch pipes, each of which is independently connected between the inlet pipe and the collecting pipe, and each of which is equipped with a control valve; The liquid collection pipe has a first port and a second port. The liquid inlet pipe is connected to the outlet of the water pump. The water cannon is connected to the first port through the connecting pipe. The spray gun is connected to the second port through the connecting hose.

3. The snow removal agent spreading device assembly as described in claim 2, characterized in that: The piping assembly also includes a safety overflow valve connected to the control device. The safety overflow valve is installed on the inlet pipe and is located between the outlet of the water pump and the branch pipe. The top side of the storage tank has a return port, and the overflow port of the safety overflow valve is connected to the return port. The control valve includes a manual ball valve and a solenoid valve. The solenoid valve is located on the side of the manual ball valve away from the inlet pipe. The solenoid valve is connected to the control device and the power device.

4. The snow removal agent spreading device assembly as described in claim 3, characterized in that: The return port is connected to a branch pipe, which has two branches. One branch is connected to the overflow port of the safety relief valve, and the other branch is a free end connected to a quick connector.

5. The snow removal agent spreading device assembly as described in claim 3, characterized in that: An operation box is provided on the main frame, which includes a power switch, a water pump switch, and a flow rate knob. The power switch is connected to the power device through the control device, the water pump switch is connected to the water pump through the control device, and the flow rate knob is connected to the solenoid valve through the control device. Both the water cannon and the spray gun are equipped with mechanical switches.

6. The snow removal agent spreading device assembly as described in claim 1, characterized in that: An electric reel is also installed on the main frame, and the connecting hose is wound around the electric reel.

7. The snow removal agent spreading device assembly as described in any one of claims 1-6, characterized in that: It also includes a housing covering the main frame, and the control device, the power device, the liquid storage tank, the water pump, the spray gun, the connecting pipe and the connecting hose are all covered inside the housing; The rear of the casing has a water cannon operating platform, the water cannon is located on the water cannon operating platform, the edge of the water cannon operating platform is surrounded by a protective plate, the protective plate is provided with a door, and the casing is provided with a spraying operation door opposite to the position of the spray gun.

8. The snow removal agent spreading device assembly as described in claim 7, characterized in that: The outer wall of the storage tank is vertically connected to a transparent liquid level tube, and the outer wall of the cover is provided with a liquid level observation window opposite to the transparent liquid level tube; the top of the storage tank has a liquid filling port, the top of the cover has a liquid filling connection port connected to the liquid filling port, the outer side of the cover is provided with a ladder, the top of the cover is provided with a lifting ring, and the side wall of the cover is provided with a ventilation opening. It also includes straps, and the top of the frame body is provided with positioning blocks that are distributed around the circumference of the liquid storage tank and abut against the liquid storage tank. The liquid storage tank is fixedly connected to the frame body by the straps.

9. A snow removal agent spraying trailer, characterized in that: It includes a non-powered tray with rollers and a snow removal agent spreading device assembly as described in any one of claims 1-8, wherein the frame body is fixedly mounted on top of the non-powered tray.

10. The snow removal agent spraying trailer as described in claim 9, characterized in that: The bottom circumferential side of the frame body is bolted with several L-shaped hook plates, which hook onto the bottom of the unpowered trailer and are bolted to the unpowered trailer. The top of the unpowered trailer has baffles that abut against the circumferential edge of the frame body.

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