Epidemic prevention fire engine

Abstract

This invention relates to the fields of spray sterilization and spray dust suppression environmental protection technology, and particularly to a type of epidemic prevention and fire-fighting vehicle, comprising a vehicle body, a rotating DC sprayer, a front sprayer, an electric pump, a power switch, a spray control valve, a water tank assembly, an auxiliary tank assembly, a light assembly, an engine pump, a reel assembly, and a rear sprayer. This device is easy to use and highly efficient. In complex areas, the front DC sprayer can flexibly spray sterilization. By alternating between the electric pump and the engine pump, it can adapt to different work sites. While performing epidemic prevention, sterilization, cooling, and dust suppression, the epidemic prevention and fire-fighting vehicle can also quickly switch to high-pressure fine water mist and fire-fighting foam for fire extinguishing.

Description

Technical Field

[0001] This invention relates to the fields of spray sterilization and spray dust suppression environmental protection technology, and in particular to an epidemic prevention and fire truck. Background Technology

[0002] In the field of epidemic prevention and sterilization

[0003] In some communities, hospitals, schools, factories, stations, amusement parks, etc., the current epidemic prevention and sterilization work is mostly done manually. Sometimes spraying trucks are also used for spraying epidemic prevention work. Except for roads, some complex areas are not sprayed thoroughly or in place. Because the spraying method of the current spraying trucks is fixed on the vehicle, it is only suitable for roads and wide areas. Some small vehicles are equipped with a fog cannon, which requires a driving trajectory for directional spraying, which is inconvenient to use. Both small fog cannon trucks and large fog cannon trucks spray water particles that are relatively large, making the road surface slippery. Because the fog cannons are installed at a high position, the water mist drifts away from the site with a little wind, and the water consumption also increases accordingly.

[0004] fire protection field

[0005] Some handcart-type mobile high-pressure fine water mist fire extinguishing equipment has a small water capacity, and the water is used up in about 5 minutes. It is inconvenient for personnel to move around in larger areas. Although the vehicle-mounted high-pressure fine water mist is superior, its function is limited and the equipment is often left idle for a long time. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the above-mentioned technologies and provide a fire-fighting vehicle for epidemic prevention. It can replace manual spraying for epidemic prevention, sterilization, or dust suppression in areas where spray trucks cannot reach, and can also be quickly converted into high-pressure fine water mist and fire-fighting foam for fire extinguishing.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A fire truck for epidemic prevention, characterized in that it includes a vehicle body, a rotating DC sprayer, a front sprayer, an electric pump, a power switch, a spray control valve, a water tank assembly, an auxiliary water tank assembly, a light assembly, an engine pump, a reel assembly, and a rear sprayer; the rotating DC sprayer is mounted above the bumper and in the middle of the front grille of the vehicle body; the front sprayer is mounted inside the front bumper; the electric pump is mounted below the hood; the power switch is mounted on the lower left side of the instrument panel; the spray control valve is mounted below the driver's right side; the water tank assembly is mounted behind the cab; the auxiliary water tank assembly is mounted above the water tank; the light assembly is mounted above and between the two auxiliary water tanks; the engine pump is mounted on the left side behind the water tank assembly; the reel assembly is mounted on the right side of the engine pump; and the rear sprayer is mounted behind the engine pump and the reel assembly.

[0008] Preferably, the rotating DC spray includes a long-handled nozzle, a rotating nozzle head, a rotating base, a support plate, a spring seat, a spring, a rotating spray pipe, a support gear ring, a positioning gear ring, a rotating joint, a high-pressure pipe, and a rotating handle. The long-handled nozzle is mounted on the rotating nozzle head, the rotating nozzle head is mounted on and communicates with the rotating base, the support plate is mounted in the middle of the front grille of the vehicle, the front end of the rotating spray pipe passes through the support plate and communicates with the rotating base, the spring seat is fitted on the rotating spray pipe and fastened with bolts, the support gear ring is fitted on the rotating spray pipe and slides with it, the spring is disposed between the support gear ring and the spring seat, the outer side of the support gear ring is fixed to the front bulkhead of the vehicle's cab, the positioning gear ring is fixed on the rotating spray pipe and meshes with the support gear ring, the other end of the rotating spray pipe is connected to the right end of the rotating joint, the left end of the rotating joint is connected to the rotating handle, and the lower end of the rotating joint is connected to the high-pressure pipe.

[0009] Preferably, the rotating nozzle is fixed to the rotating base by a lock nut and a spring washer, and sprays water in front of the vehicle from inside the vehicle cab by rotating the handle.

[0010] Preferably, the front spray includes a nozzle, a locking nut, a spray pipe, and a high-pressure pipe. The spray pipe is fixed to the inside of the bumper of the vehicle body by the locking nut. One end of the high-pressure pipe is connected to the spray pipe, and the other end is connected to the spray control valve.

[0011] Preferably, the electric pump includes a motor, a high-pressure plunger pump, a high-pressure pipe, and a water inlet pipe; the electric pump is installed under the front hood, and the high-pressure pipe is connected to a one-way cross connector, sharing a power supply with the vehicle drive motor.

[0012] Preferably, the power switch includes a switch bracket, an engine switch, and an electric pump switch; the power switch is mounted on the lower left side of the instrument panel, the engine switch is connected to the engine battery, and the electric pump switch is connected to the vehicle's running battery.

[0013] Preferably, the injection control valve includes a warning panel, a one-way cross joint, a front function valve, and a rear function valve; the injection control valve is fixed to the lower right side of the driver, the front function valve controls the rotating DC spray and the front spray respectively, the rear function valve controls the rear spray and the reel respectively, and the one-way cross joint is used to control that when one of the high-pressure pumps is working, the high-pressure water will not flow into the other pump body.

[0014] Preferably, the water tank assembly includes a main water tank and auxiliary water tanks respectively located above the main water tank on both sides. The upper part of the main water tank is provided with a groove, and an oil tank is installed in the groove. The upper part of the oil tank is flush with the upper part of the main water tank. A rear observation passage for the driver is left between the two auxiliary water tanks. The main water tank is welded together with an upper side plate and a lower side plate. A water pipe replenishment valve and a fire hose replenishment valve communicating with the interior are fixed on the lower side plate. A water gun mounting bracket is installed on the side of the main water tank, and the water gun is placed on the water gun mounting bracket. The upper part of the main water tank is provided with a stop switch, a guide tube cover, and a float. The side of the water tank is provided with a water outlet and agent inlet valve communicating with the interior. The two auxiliary water tanks contain two kinds of spray agents. A drain pipe is connected to the auxiliary water tank, and a drain valve is installed on the drain pipe. The drain pipe is connected to the water outlet and agent inlet valve.

[0015] Preferably, the lamp assembly includes a warning light, a horn, a lighting lamp, and a lamp holder; the lamp assembly is mounted above and between the two auxiliary boxes.

[0016] Preferably, the reel assembly includes a reel lock, a reel bracket, a high-pressure water inlet pipe, a reel, a handle, a reel rotary joint, a high-pressure water inlet pipe, and a quick connector; the reel assembly is mounted on the engine mount on the right side of the high-pressure plunger pump, the high-pressure water inlet pipe is connected to the rear function valve, and the high-pressure water inlet pipe is connected to the rear DC spray and spray gun via a quick connector.

[0017] Preferably, the rear spray includes a sliding plate fixing plate, a locking handle, a sliding plate, a rear spray high-pressure pipe, a rear spray rotary joint, a nozzle, a spray frame, a hinge, a rear DC spray pipe, a rear DC nozzle, a rear DC quick-connect joint, and a rear DC connector; the sliding plate fixing plate is fixed to the engine mount, the sliding plate is fixed to the sliding plate fixing plate by the locking handle, one end of the sliding plate is hinged to a connecting block fixed in the middle of the spray frame, the rear spray high-pressure pipe is connected to one end of the rear spray rotary joint, the other end of the rear spray rotary joint is connected to the spray frame, the spray frame has a hollow internal structure, the nozzles are evenly installed on the spray frame, the bottom of the spray frame is connected to the hinge, the lower part of the hinge is fixed to the rear of the vehicle body, the rear DC nozzle is connected to one end of the rear DC spray pipe, the other end of the rear DC spray pipe is connected to one end of the rear DC quick-connect joint, the other end of the rear DC quick-connect joint is fixed to the connecting block, the connecting block has a hollow internal structure, and the rear DC connector is fixed to one side of the connecting block and communicates with it.

[0018] The beneficial effects of this invention are: the device is easy to use and has high working efficiency. It can flexibly spray sterilization in some complex areas. By alternating between electric pumps and engine pumps, it can cope with different work sites. While the epidemic prevention and fire truck is carrying out epidemic prevention, sterilization, cooling and dust removal, it can also quickly switch to high-pressure fine water mist and fire-fighting foam for fire extinguishing. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a functional exploded view of the present invention;

[0021] Figure 3 This is a schematic diagram of the rotating DC spray structure in this invention;

[0022] Figure 4 This is a schematic diagram of the front spray structure in this invention;

[0023] Figure 5 This is a schematic diagram of the electric pump structure in this invention;

[0024] Figure 6 This is a schematic diagram of the power switch structure in this invention;

[0025] Figure 7 This is a schematic diagram of the injection control valve structure in this invention;

[0026] Figure 8 This is a schematic diagram of the water tank assembly structure in this invention;

[0027] Figure 9 This is a schematic diagram of the auxiliary box assembly structure in this invention;

[0028] Figure 10 This is a schematic diagram of the lamp holder assembly structure in this invention;

[0029] Figure 11 This is a schematic diagram of the engine pump structure in this invention;

[0030] Figure 12 This is a schematic diagram of the reel assembly structure in this invention;

[0031] Figure 13 This is a schematic diagram of the post-spray structure in this invention. Detailed Implementation

[0032] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of one device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or features would subsequently be positioned as "below" or "under" other devices or features. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0033] like Figure 1 and Figure 2 As shown, an epidemic prevention and fire-fighting vehicle includes a vehicle body 2, a rotary DC sprayer 3, a front sprayer 4, an electric pump 5, a power switch 6, a spray control valve 7, a water tank assembly 8, an auxiliary water tank assembly 9, a light assembly 10, an engine pump 11, a reel assembly 12, and a rear sprayer 13. The rotary DC sprayer is mounted above the bumper and in the middle of the front grille; the front sprayer is mounted inside the front bumper; the electric pump is mounted below the hood 1; the power switch is mounted on the left side below the instrument panel; the spray control valve is mounted below the driver's right side; the water tank assembly is mounted behind the cab; the auxiliary water tank assembly is mounted above the water tank; the light assembly is mounted above and between the two auxiliary water tanks; the engine pump is mounted on the left side behind the water tank assembly; the reel assembly is mounted on the right side of the engine pump; and the rear sprayer is mounted behind the engine pump and the reel assembly.

[0034] like Figure 3As shown, the rotating DC spray includes a long-handled nozzle 301, a rotating nozzle head 302, a sealing ring 303, a rotating seat 304, a spring washer 305, a lock nut 306, a support plate 307, a spring seat 308, a spring 309, a rotating spray pipe 310, a support gear ring 311, a positioning gear ring 312, a rotating joint 313, a high-pressure pipe 314, and a rotating handle 315. The long-handled nozzle is mounted on the rotating nozzle head, and the rotating nozzle head is fixed to and connected to the rotating seat by the lock nut and the spring washer. The support plate is mounted in the middle of the front grille of the vehicle. The front end of the rotating spray pipe passes through the support plate and connects to the rotating seat. The front end of the rotating spray pipe can move back and forth within the circular hole of the support plate. The spring washer prevents the rotating nozzle head from rotating freely. By turning the long-handled nozzle head, the rotating nozzle head can spray at all angles in front of the vehicle. The spring seat is fitted onto the rotating nozzle and secured with bolts. The support gear ring is fitted onto the rotating nozzle and slides with it. The spring is positioned between the support gear ring and the spring seat. The outer side of the support gear ring is fixed to the front bulkhead of the vehicle's cab, which also serves to stabilize the rear section of the rotating direct current spray by keeping it parallel to the front. The positioning gear ring is fixed onto the rotating nozzle and meshes with the supported gear ring. When the spring is stressed, it moves the rotating nozzle forward, engaging the positioning gear ring and the support gear ring. Because the spring is stressed and the teeth of the support gear ring and the positioning gear ring are engaged, the rotating nozzle cannot rotate freely, allowing the rotating spray device to spray in a directional manner. The spray angle is determined by operating the long-handled nozzle. The high-pressure fine water mist spray distance is approximately 16 meters. Mounted at the front of the vehicle, through human-machine interaction, it can quickly and flexibly spray disinfection and sterilization work in different directions, angles, and complex areas.

[0035] The other end of the rotary nozzle is connected to the right end of the rotary joint, the left end of the rotary joint is connected to the rotary handle, and the lower end of the rotary joint is connected to the high-pressure pipe. When selecting the spray direction, gently pull the rotary handle to separate the rotating teeth and the positioning teeth. Rotating the rotary handle allows for flexible and rapid spraying in all directions in front of the vehicle.

[0036] In use, the device is installed at the front of the vehicle body, with the rotating nozzle extending into the cab. The spray angle is roughly adjusted by turning the long-handled nozzle. Inside the cab, the spray direction is selected by rotating the handle. A slight pull on the handle separates the support and positioning teeth. Rotating the handle to align with the target allows for flexible and rapid spraying. Releasing the handle enables directional spraying. The spray direction can be flexibly adjusted, allowing for rapid sterilization and dust suppression in complex areas.

[0037] like Figure 4As shown, the front sprayer includes a nozzle 401, a lock nut 402, a spray pipe 403, and a high-pressure pipe 404. The front sprayer is fixed to the inside of the bumper by the lock nut, and the high-pressure pipe is connected to the spray control valve. The front sprayer is installed inside the front bumper, and the high-pressure pipe is connected to the front function valve. The front sprayer is a fixed spraying method, suitable for spraying epidemic prevention and dust suppression work on roads and in wide areas.

[0038] Figure 5 As shown, the electric pump includes a motor 501, a high-pressure plunger pump 502, an inlet pipe 503, and a high-pressure pipe 504. The electric pump is installed under the front hood, the inlet pipe is connected to the water and agent inlet valve, and the high-pressure pipe is connected to a one-way cross connector. The electric pump is suitable for spraying operations in residential areas, schools, office areas, and other areas requiring quiet operation.

[0039] like Figure 6 As shown, the power switch includes a support frame 601, an electric pump switch 602, and an engine pump switch 603.

[0040] The power switch is located on the lower left side of the instrument panel. To use the electric pump, simply turn on the electric pump switch; to use the engine pump, turn on the engine pump switch, and then turn the key to start the engine. The engine switch connects to the engine battery, and the electric pump switch connects to the vehicle's running battery. This allows for quick power disconnection in emergencies.

[0041] like Figure 7 As shown, the injection control valve includes an indicator panel 701, a one-way cross joint 702, a front function valve 703, and a rear function valve 704. The injection control valve is fixed to the lower right side of the driver. The front function valve controls the front spray function, and the rear function valve controls the rear spray function. The one-way cross joint prevents high-pressure water from flowing into the other pump body when one high-pressure pump is operating, thus extending the service life of the pump body and seals.

[0042] like Figure 8 As shown, the water tank assembly includes a stop switch 801, a guide pipe cover 802, a float 803, an oil tank 804, an upper side plate 805, a lower side plate 806, fixing bolts 807, a water pipe water supply valve 808, a fire hose water supply valve 809, a water outlet and agent inlet valve 810, a water gun mounting bracket 811, a level gauge 812, and a water gun 813. The water tank is welded together from the upper and lower side plates, with an oil tank mounting groove at the top. The outer side tilts inward with the angle of the cab. The water tank assembly is mounted behind the driver's cab with fixing bolts. The stop switch ensures an alarm and shutdown when the water level is low. Two water supply valves lead to the top of the water tank and can exchange air with each other. The water gun is fixed on the water gun mounting bracket.

[0043] like Figure 9As shown, the auxiliary tank assembly includes an auxiliary tank cover 901, a left side tank 902, a level gauge 903, a right side tank 904, a drain valve 905, and a drain pipe 906. The auxiliary tank assembly is mounted above the water tank, with the left side tank positioned above the water tank on the left and the right side tank above the water tank on the right. The two auxiliary tanks are positioned with the front higher than the rear, and their outer sides slope inwards from bottom to top, following the angle of the water tank. A rear observation passage is provided in the middle for the driver to easily monitor the situation behind them and the spray operation status. The left side tank contains disinfectant, and the right side tank contains fire-fighting foam. The drain pipe connects to the water tank's outlet and inlet valve. When selecting a predetermined spray agent, simply open the corresponding drain valve. The passage between the two tanks allows the driver to easily observe the operating status of the equipment behind them.

[0044] like Figure 10 As shown, the light assembly includes a warning light 1001, a horn 1002, a lighting lamp 1003, a light holder 1004, and a crossbeam 1005. The warning light assembly is mounted above the auxiliary water tank, the crossbeam connects the left and right side tanks, and the light holder is mounted in the upper middle of the crossbeam. This facilitates warning, public announcements, and rear lighting.

[0045] like Figure 11 As shown, the engine pump includes an engine cover 1101, an engine 1102, a high-pressure plunger pump 1103, a water inlet pipe 1104, a high-pressure pipe 1105, a high-pressure plunger pump seat 1106, a roller damping seat 1107, and an engine seat 1108. The engine pump is mounted on the left rear of the water tank assembly. The engine and the high-pressure plunger pump are mounted on the engine seat. The water inlet pipe is connected to the water tank outlet valve, and the high-pressure pipe is connected to a one-way cross joint.

[0046] like Figure 12 As shown, the reel assembly includes a reel lock 1201, a reel bracket 1202, a high-pressure water inlet pipe 1203, a reel 1204, a handle 1205, a reel rotary joint 1206, a high-pressure water inlet pipe 1207, and a quick connector 1208. The reel assembly is mounted on the left side of the engine pump. The high-pressure water inlet pipe is connected to the rear function valve, and the high-pressure water inlet pipe is connected to the rear direct-flow spray and water gun. In areas inaccessible by vehicles, such as narrow roads, corner passages, and staircases, simply open the quick connector on the high-pressure water inlet pipe to connect the spray gun for spraying, or use high-pressure fine water mist for fire extinguishing.

[0047] like Figure 13As shown, the rear spray system includes a sliding plate fixing plate 1301, a locking handle 1302, a sliding plate 1303, a high-pressure hose 1304, a rear DC spray pipe 1305, a rear DC nozzle 1306, a rear spray rotary joint 1307, a rear DC quick-connect joint 1308, a rear DC connector 1309, a nozzle 1310, a spray frame 1311, and a hinge 1312. The rear spray system is installed behind the engine pump and the reel assembly. The hinge connects the spray frame to the vehicle body. The front end of the high-pressure hose is connected to the rear function valve, and the rear end is connected to the spray frame via the rear spray rotary joint. The rear DC connector connects to the reel high-pressure hose and then to the rear function valve. The locking handle adjusts the spray angle. The rear spray system is installed behind the spraying vehicle via a hinge, and the locking handle adjusts the spray angle. The rear spray system is used for large-area spraying. The rear DC nozzle is connected to one end of the rear DC spray pipe, and the other end of the rear DC spray pipe is connected to one end of the rear DC quick-connect connector. The other end of the rear DC quick-connect connector is fixed to the connecting block, which has a hollow internal structure. The rear DC connector is fixed to one side of the connecting block and communicates with it. The rear DC spray has one nozzle, suitable for long-distance spraying. The rear DC spray pipe is inserted into the DC quick-connect connector and rotated to align with the spray direction. The locking handle adjusts the spray angle of the rear spray and the rear DC spray. The rear DC spray pipe sprays diagonally upwards from the top. The spray direction of the rear DC spray pipe within the rear DC quick-connect connector can be adjusted according to site requirements. The spray frame can be adjusted by locking the handle according to the height and distance of the object, enabling flexible spraying at both long and short distances.

[0048] This device is easy to use and highly efficient. It can flexibly spray sterilization in some complex areas with a DC spray in front of the vehicle. By alternating between electric pumps and engine pumps, it can cope with different work sites. While carrying out epidemic prevention, sterilization, cooling and dust removal, the epidemic prevention and fire truck can also quickly switch to high-pressure fine water mist and fire-fighting foam for fire extinguishing.

[0049] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A fire truck for epidemic prevention, characterized in that; The system includes a vehicle body, a rotating DC sprayer, a front sprayer, an electric pump, a power switch, a spray control valve, a water tank assembly, an auxiliary water tank assembly, a light assembly, an engine pump, a reel assembly, and a rear sprayer. The rotating DC sprayer is mounted above the bumper and in the middle of the front grille. The front sprayer is mounted inside the front bumper. The electric pump is mounted below the hood. The power switch is mounted on the lower left side of the instrument panel. The spray control valve is mounted below the driver's right side. The water tank assembly is mounted behind the cab. The auxiliary water tank assembly is mounted above the water tank. The light assembly is mounted above and between the two auxiliary water tanks. The engine pump is mounted on the left side behind the water tank assembly. The reel assembly is mounted on the right side of the engine pump. The rear spray is located behind the engine pump and reel assembly; The rotating DC sprayer includes a long-handled nozzle, a rotating nozzle head, a rotating base, a support plate, a spring seat, a spring, a rotating spray pipe, a support gear ring, a positioning gear ring, a rotating joint, a high-pressure pipe, and a rotating handle. The long-handled nozzle is mounted on the rotating nozzle head, which is mounted on and communicates with the rotating base. The support plate is mounted in the middle of the front grille of the vehicle. The front end of the rotating spray pipe passes through the support plate and communicates with the rotating base. The spring seat is fitted onto the rotating spray pipe and secured with bolts. The support gear ring is fitted onto the rotating spray pipe and slides with it. The spring is positioned between the support gear ring and the spring seat. The outer side of the support gear ring is fixed to the front bulkhead of the vehicle's cab. The positioning gear ring is fixed to the rotating spray pipe and meshes with the support gear ring. The other end of the rotating spray pipe is connected to the right end of the rotating joint. The left end of the rotating joint is connected to the rotating handle, and the lower end of the rotating joint is connected to the high-pressure pipe. The rotary nozzle is fixed to the rotary seat by a lock nut and a spring washer, and sprays water in front of the vehicle by rotating the handle from inside the vehicle cab. The front spray includes a nozzle, a lock nut, a spray pipe, and a high-pressure pipe. The spray pipe is fixed to the inside of the bumper of the vehicle body by the lock nut. One end of the high-pressure pipe is connected to the spray pipe, and the other end is connected to the spray control valve.

2. The epidemic prevention fire truck according to claim 1, characterized in that; The electric pump includes a motor, a high-pressure plunger pump, a high-pressure pipe, and a water inlet pipe; the electric pump is installed under the front hood, and the high-pressure pipe is connected to a one-way cross connector, sharing a power supply with the vehicle drive motor.

3. The epidemic prevention fire truck according to claim 1, characterized in that; The power switch includes a switch bracket, an engine switch, and an electric pump switch; The power switch is located on the lower left side of the instrument panel. The engine switch is connected to the engine battery, and the electric pump switch is connected to the vehicle's running battery.

4. The epidemic prevention fire truck according to claim 1, characterized in that; The injection control valve includes an indicator panel, a one-way cross joint, a front function valve, and a rear function valve. The injection control valve is fixed to the lower right side of the driver. The front function valve controls the rotating DC spray and the front spray respectively, and the rear function valve controls the rear spray and the reel respectively. The one-way cross joint is used to prevent high-pressure water from flowing into the other pump body when one of the high-pressure pumps is working.

5. The epidemic prevention fire truck according to claim 1, characterized in that; The water tank assembly includes a main water tank and auxiliary water tanks respectively located above the main water tank on both sides. The upper part of the main water tank is provided with a groove, and an oil tank is installed in the groove. The upper part of the oil tank is flush with the upper part of the main water tank. A rear observation passage for the driver is left between the two auxiliary water tanks. The main water tank is welded together with an upper side plate and a lower side plate. A water supply valve for the water pipe and a water supply valve for the fire hose are fixed on the lower side plate. A water gun mounting bracket is installed on the side of the main water tank, and the water gun is placed on the water gun mounting bracket. The upper part of the main water tank is provided with a stop switch, a guide tube cover, and a float. The side of the main water tank is provided with a water outlet and agent inlet valve that communicates with the interior. The two auxiliary water tanks contain two kinds of spray agents. A drain pipe is connected to the auxiliary water tank, and a drain valve is installed on the drain pipe. The drain pipe is connected to the water outlet and agent inlet valve.

6. The epidemic prevention fire truck according to claim 1, characterized in that; The light assembly includes a warning light, a horn, a lighting lamp, and a light frame; the light assembly is mounted above and between two auxiliary boxes.

7. The epidemic prevention fire truck according to claim 1, characterized in that; The engine pump includes an engine cover, an engine, a high-pressure plunger pump, a water inlet pipe, a high-pressure plunger pump seat, a roller damping seat, and an engine seat. The engine pump is installed behind the water tank assembly. The engine cover covers the equipment below and the roller assembly for rain protection. An engine cooling cover is provided on top of the engine cover.

8. The epidemic prevention fire truck according to claim 1, characterized in that; The reel assembly includes a reel lock, a reel bracket, a high-pressure water inlet pipe, a reel, a handle, a reel rotary joint, a high-pressure water inlet pipe, and a quick connector. The reel assembly is mounted on the engine mount on the right side of the high-pressure plunger pump. The high-pressure water inlet pipe is connected to the rear function valve, and the high-pressure water inlet pipe is connected to the rear DC spray and spray gun via a quick connector.

9. The epidemic prevention fire truck according to claim 1, characterized in that; The rear spray system includes a sliding plate fixing plate, a locking handle, a sliding plate, a rear spray high-pressure pipe, a rear spray rotary joint, nozzles, a spray frame, a hinge, a rear DC nozzle pipe, a rear DC nozzle, a rear DC quick-connect joint, and a rear DC connector. The sliding plate fixing plate is fixed to the engine mount. The sliding plate is fixed to the sliding plate fixing plate via the locking handle. One end of the sliding plate is hinged to a connecting block fixed in the middle of the spray frame. The rear spray high-pressure pipe is connected to one end of the rear spray rotary joint, and the other end of the rear spray rotary joint is connected to the spray frame. The spray frame has a hollow internal structure. The nozzles are evenly installed on the spray frame. The bottom of the spray frame is connected to the hinge, and the lower part of the hinge is fixed to the rear of the vehicle body. The rear DC nozzle is connected to one end of the rear DC nozzle pipe, and the other end of the rear DC nozzle pipe is connected to one end of the rear DC quick-connect joint. The other end of the rear DC quick-connect joint is fixed to the connecting block. The connecting block has a hollow internal structure. The rear DC connector is fixed to one side of the connecting block and communicates with it.

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