Watering cart with wastewater collecting function

Abstract

This invention discloses a water sprinkler truck with wastewater collection function, belonging to the field of water sprinkler trucks, comprising: a vehicle frame; a tank assembly, the tank assembly including an independent water tank, a clean water tank, a tailgate, a filter screen, and a water inlet guide pipe; a water sprinkler mechanism; a suction nozzle assembly, the suction nozzle assembly including a mounting bracket fixed to the bottom of the rear end of the vehicle frame, a swing mechanism movably mounted on the side of the mounting bracket, a suction nozzle assembly hinged to the end of the swing mechanism, a guide wheel fixed to the bottom of the suction nozzle assembly, the top of the suction nozzle assembly inserted into the inner side of the water inlet guide pipe, and the guide wheel contacting the ground under the swing of the swing mechanism; and a water pump locked under the vehicle frame, which can not only recover the water accumulated after the water sprinkler truck sprays on the road, but also adjust the height of the suction structure according to the terrain, thereby maximizing the wastewater collection capacity without damaging the suction structure.

Description

Technical Field

[0001] This invention relates to a sprinkler truck, and more particularly to a sprinkler truck with wastewater collection function. Background Technology

[0002] Water sprinkler trucks are commonly used by road and garden units for cleaning roads, sanitation, dust control, watering, and spraying pesticides. Most of their applications are for municipal road dust removal, flushing dirt to the sides of the road to maintain cleanliness. During flushing, the flushing water carries dirt to the sides of the road, where it is then discharged through the sewer or dried naturally.

[0003] However, in reality, since the entire road is covered by the water trucks, most of the road surface is relatively flat. The sewage cannot flow into the sewers and can only wait to dry naturally. The accumulated sewage will splash a lot of sewage when speeding vehicles pass by, which will have a certain impact on people or things around it. Moreover, if it stays on the road surface for a long time, especially in some dark places, it is easy to breed moss and bacteria, making the road surface slippery and causing accidents. If the road surface is icy after the operation in winter, the slippery road surface will easily cause traffic accidents.

[0004] In response, some existing water sprinkler trucks are equipped with structures to collect road surface water. The sprinkler truck is driven to the side of the road and uses negative pressure suction to draw sewage and debris into the vehicle's interior, filtering out the debris to obtain cleaner water. The filtered water can be reused as flushing water, increasing the vehicle's range. However, when setting up the negative pressure suction structure, if it is positioned too high, the suction stroke will be too long, and some sewage cannot be removed. If the negative pressure suction structure is positioned too low, it is easy for the vehicle to rotate with the ground protrusions or stones when driving on bumpy roads, resulting in damage and deformation of the negative pressure suction structure.

[0005] Therefore, this case aims to provide a water truck with wastewater collection function, which can not only recover the water left behind after the water truck sprays on the road, but also adjust the height of the suction structure according to the terrain, so as to maximize the wastewater collection capacity without damaging the suction structure. Summary of the Invention

[0006] This invention provides a sprinkler truck with wastewater collection function, which can effectively solve the above problems.

[0007] This invention is implemented as follows:

[0008] A sprinkler truck with wastewater collection function includes:

[0009] One frame;

[0010] A tank assembly fixed to the vehicle frame, the tank assembly including an independent water tank, a clean water tank separated from the independent water tank, a tailgate movably installed on the side of the clean water tank away from the independent water tank, a filter screen plate disposed inside the clean water tank, and a water inlet guide pipe located on the right side of the filter screen plate;

[0011] A water spraying mechanism, wherein the water inlet of the water spraying mechanism is connected to an independent water tank, and the water outlet of the water spraying mechanism extends through a pipe to the bottom of the front end of the vehicle frame;

[0012] A suction nozzle assembly includes a mounting bracket fixed to the bottom of the rear end of the vehicle frame, a swing mechanism movably mounted on the mounting bracket and facing upwards, a suction nozzle assembly hinged to the end of the swing mechanism, a guide wheel fixed to the bottom of the suction nozzle assembly, the top of the suction nozzle assembly being inserted into the inside of the water inlet guide pipe, and the guide wheel contacting the ground under the swing of the swing mechanism.

[0013] A water pump is locked under the vehicle frame, and the water pump is connected to the tank assembly, the water spraying mechanism, and the nozzle assembly via a pneumatic mechanism.

[0014] As a further improvement, the swing mechanism includes a first drive cylinder hinged to the mounting bracket, with both ends respectively hinged to at least one deflector rod on the side of the mounting bracket and the nozzle assembly, and the output end of the first drive cylinder is fixed to the top of the deflector rod by a hinge seat.

[0015] As a further improvement, the pneumatic mechanism includes a first pneumatic valve connecting the sprinkler mechanism and the independent water tank, a second pneumatic valve connecting the independent water tank and the clean water tank, a third pneumatic valve connecting the second pneumatic valve and the water pump, and a fourth pneumatic valve connecting the water pump and the clean water tank.

[0016] As a further improvement, the tank assembly also includes an internal flushing device located on the left side of the filter screen, and the pneumatic mechanism further includes a fifth pneumatic valve connected between the internal flushing device and the water pump.

[0017] As a further improvement, the internal flushing device includes a connecting pipe inserted into the fifth pneumatic valve, a flushing head hinged to the top of the connecting pipe and communicating with the interior of the connecting pipe, and a tilting motor fixed to the side of the connecting pipe facing upwards.

[0018] As a further improvement, the nozzle assembly includes a sealing slide inserted into the connecting tube, a suction nozzle welded to the bottom of the sealing slide, a mounting rod connecting the two suction nozzles, and a guide wheel mounted on the mounting rod.

[0019] As a further improvement, the inside of the connecting pipe is provided with several annularly arranged grooves, the sealing slide includes an inner connecting rib that is movably inserted into the inside of the groove, an outer connecting rib that is located outside the inner connecting rib and movably fitted to the outside of the groove, and a sealing sleeve is fitted to the outside of the connection position between the connecting pipe and the sealing slide.

[0020] As a further improvement, a liquid level sensor is provided on the side of the suction nozzle near the guide wheel. The liquid level sensor sends an electrical signal to the cab of the vehicle frame after contacting the liquid.

[0021] As a further improvement, a guide plate is hinged to the side of the water inlet guide pipe facing the filter screen, and a push rod motor is hinged to the outer arc surface of the guide plate. The fixed end of the push rod motor is hinged to the water inlet guide pipe.

[0022] As a further improvement, a flow sensor is provided on the top of the inner side of the suction nozzle, and the flow sensor is electrically connected to the push rod motor.

[0023] The beneficial effects of this invention are:

[0024] This invention places the water spraying mechanism in the front wheel area of ​​the vehicle, while the suction assembly is located at the rear wheel position. After the water spraying mechanism washes dust onto the side of the road, the suction assembly, which moves to the water accumulation area, can pump away the water. This ensures the water spraying effect while preventing road water accumulation. The water pumped by the suction assembly is filtered by the filter screen in the clean water tank and stored there. The water in the clean water tank can be pumped to an independent water tank for use by the water spraying mechanism at any time. This solves the problem of road water accumulation and extends the overall operating time of the water truck.

[0025] In conventional negative pressure suction systems, controlling the height of the suction equipment is a challenge in the industry. If the height is too high, the suction will be incomplete; if the height is too low, it will be easily damaged. To address this, this invention installs guide wheels at the bottom. On normal road surfaces, a swing mechanism pushes the guide wheels to the same height as the front and rear wheels of the frame, allowing them to contact the ground. The suction nozzles on both sides of the guide wheels then suck up the wastewater, keeping them as close to the ground as possible. When the guide wheels are bumped, they move upward, compressing the swing mechanism and causing it to swing upward, thus raising the height of the entire suction nozzle assembly. This temporary height increase prevents the nozzle assembly from deforming and being damaged by contact with the ground. After passing through bumpy sections, the swing mechanism swings downward again, returning the suction nozzle assembly to its original position, allowing it to adapt to different road conditions.

[0026] In order to enable the swing mechanism to be lifted after being compressed and to return to its original position after the road surface returns to normal, the present invention adopts the method of pushing out the first drive cylinder to directly push the deflector rod connected to the suction nozzle assembly downward, thus pushing out the suction nozzle assembly. After the suction nozzle assembly is pushed up by the guide wheel, the first drive cylinder is retracted by force. After the external force disappears, the first drive cylinder can be pushed out again.

[0027] In this invention, all connections between structures are pneumatically controlled, with multiple pneumatic valves controlled by the same pneumatic system. By switching between different flow paths using the pneumatic system, the impact of hydraulic oil leakage on water quality in hydraulic control can be avoided.

[0028] Since the suction nozzle assembly needs to move up and down, but it must always remain connected to the connecting pipe to ensure that the pumped sewage always enters the tank assembly, this invention provides a sealing slide in the suction nozzle assembly. The suction nozzle assembly is connected to the connecting pipe through the sealing slide, allowing the two to remain connected while also being able to move up and down relative to each other. Specifically, the sealing slide is inserted into the connecting pipe, a groove is provided in the connecting pipe, and two sealing structures are provided in the sealing slide. As the sealing slide slides upward, the inner connecting rib of the sealing slide and the outer connecting rib sealing groove cooperate to ensure a sealed state, and the pumped sewage can never leak out from the gap between the sealing slide and the connecting pipe.

[0029] On the outside of the sealing slide and the connecting pipe, a sealing sleeve seals the entire sealing slide and the connecting pipe. Through the sealing groove of the inner and outer connecting ribs and the sealing sleeve, the sealing slide and the connecting pipe can move up and down stably and in a sealed manner.

[0030] During the process of suction nozzles pumping sewage from the road surface, if there are deep depressions in the ground, the amount of sewage stored in that location will be relatively large. At the normal operating speed of the sprinkler truck, the suction nozzles will not be able to completely remove all the sewage, resulting in some sewage residue. To address this, the present invention installs a liquid level sensor on the outside of the suction nozzle. When sewage reaches the liquid level sensor, it indicates that the sewage level at that location is high. The liquid level sensor then sends a signal to the driver's cab, instructing the driver to slow down and process the current area at a slower pace, so that even areas with significant sewage accumulation can be effectively treated.

[0031] Wastewater entering the tank assembly needs to be treated by a filter screen. However, in reality, because the amount of wastewater pumped each time is small, most impurities adhere to the lower layer of the filter screen, clogging it. Meanwhile, the upper layer of the filter screen is not fully utilized. To address this, the present invention incorporates a guide plate and a push rod motor. The position of the guide plate can be adjusted via the push rod motor, thereby distributing the pumped wastewater to different locations. This ensures that the filter screen is used evenly, preventing overuse in some areas while other areas remain underutilized.

[0032] The above processes all occur within the tank assembly and are unsupervised, making it impossible to determine the usage status of the filter screen. To address this, the present invention incorporates a flow sensor in the suction nozzle to monitor the amount of water passing through. When the water volume reaches the rated standard, the flow sensor sends a signal to the push rod motor, causing the push rod motor to adjust its angle. This adjustment is made each time the water volume changes, ensuring that the filter screen is used evenly.

[0033] After the tank assembly has been used for a period of time, some dirt will accumulate inside, and there will also be a lot of impurities on the filter screen. At this time, the internal flushing device is used for backflushing, and the tailgate is opened to flush away the dirt on the filter screen and the dirt inside the tank. Since the impurities on the filter screen are relatively evenly distributed, a tilting motor is set on the internal flushing device to adjust the angle of the internal flushing device and flush the filter screen more evenly, so that it can still be fully utilized when water is sprayed next time. Attached Figure Description

[0034] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0035] Figure 1 This is a front view structural diagram of a sprinkler truck with wastewater collection function provided by the present invention.

[0036] Figure 2 This is a schematic diagram of the internal structure of a tank assembly provided by the present invention.

[0037] Figure 3 This is a front view structural diagram of a nozzle assembly provided by the present invention.

[0038] Figure 4 This is a schematic diagram of the structure of a connecting pipe and a water inlet guide pipe provided by the present invention.

[0039] Figure 5 This is a side view of a suction nozzle assembly provided by the present invention (first suction nozzle configuration).

[0040] Figure 6 This is a side view structural diagram of a suction nozzle assembly provided by the present invention ((second suction nozzle setting method)). Detailed Implementation

[0041] All embodiments of the present invention are intended to fall within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0042] In the description of this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating that the purpose, technical solution, and advantages of the method are clearer. The technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without inventive effort indicate or imply the relative importance of the indicated technical features. Therefore, features defined with "first" and "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0043] Reference Figures 1-6As shown, a water sprinkler truck with wastewater collection function includes: a frame 10; a tank assembly 20 fixed to the frame 10, the tank assembly 20 including an independent water tank 21, a clean water tank 22 separated from the independent water tank 21, a tailgate 23 movably installed on the side of the clean water tank 22 away from the independent water tank 21, a filter screen 24 disposed inside the clean water tank 22, and a water inlet guide pipe 25 located on the right side of the filter screen 24; and a water sprinkler mechanism 30, the water inlet of the water sprinkler mechanism 30 being connected to the independent water tank 21, and the water outlet of the water sprinkler mechanism 30 extending through a pipe to the bottom of the front end of the frame 10. The vehicle frame 10 includes a suction nozzle assembly 40, which includes a mounting bracket 41 fixed to the bottom of the rear end of the frame 10, a swing mechanism 42 movably mounted on the mounting bracket 41 and facing upwards, a suction nozzle assembly 43 hinged to the end of the swing mechanism 42, and a guide wheel 44 fixed to the bottom of the suction nozzle assembly 43. The top of the suction nozzle assembly 43 is inserted into the inside of the water inlet guide pipe 25, and the guide wheel 44 contacts the ground under the swing of the swing mechanism 42. A water pump 50 is locked under the frame 10, and the water pump 50 is connected to the tank assembly 20, the water spraying mechanism 30, and the suction nozzle assembly 40 through a pneumatic mechanism.

[0044] In this embodiment, the frame 10 includes the cab and the vehicle body structure, both of which are existing technologies and will not be elaborated further here.

[0045] The independent water tank 21 is also equipped with an overflow pipe 27 to prevent the water level from becoming too high.

[0046] During use, the independent water tank 21 and the purified water tank 22 are separated. The purified water is only stored in the independent water tank 21 for reuse after a certain amount of water has been stored in the purified water tank 22. The purpose of the separation is to prevent the purified water tank 22 from being directly mixed into the independent water tank 21 and contaminating the water therein.

[0047] When the water truck starts moving, the water spraying mechanism 30 is located in the front wheel area of ​​the vehicle, while the suction assembly 40 is located at the rear wheel position. After the water spraying mechanism 30 washes the dust to the side of the road, the suction assembly 40, which moves to the water accumulation area, can pump away the water. This ensures the water spraying effect while preventing water accumulation on the road. The water pumped by the suction assembly 40 is filtered by the filter screen 24 in the clean water tank 22 and stored in the clean water tank 22. The water in the clean water tank 22 can be pumped to the independent water tank 21 at any time for use by the water spraying mechanism 30. This solves the problem of water accumulation on the road and extends the overall driving time of the water truck.

[0048] In conventional negative pressure suction systems, controlling the height of the suction equipment is a challenge in the industry. If the height is too high, the suction will be incomplete; if the height is too low, it will be easily damaged. To address this, the present invention installs guide wheels 44 at the bottom of the entire structure, which lowers the position of the suction nozzle assembly 43, thereby achieving a better suction effect.

[0049] On actual road surfaces, there are numerous controllable factors. For example, the front and rear wheels of a vehicle are on flat ground, while there are protrusions at the corresponding guide wheel 44 positions. These protrusions can directly impact the guide wheel 44, causing damage or deformation of the suction nozzle assembly 43 on the guide wheel 44. Controlling the height of the suction equipment is a challenge in the industry; if the height is too high, suction will be incomplete; if the height is too low, it will easily be damaged. To address this, the present invention installs the guide wheel 44 at the entire bottom. On normal road surfaces, the swing mechanism 42 pushes the entire guide wheel 44 to a height level with the front and rear wheels of the frame 10, allowing the guide wheel 44 to... The guide wheel 44 is close to the ground, and the suction nozzle assemblies 43 on both sides of the guide wheel 44 suck up the sewage. The suction nozzle assemblies 43 are kept as close to the ground as possible. When the guide wheel 44 is bumped, the guide wheel 44 will move upward, thereby compressing the swing mechanism 42 and causing the swing mechanism 42 to swing upward, thereby increasing the height of the entire suction nozzle assembly 43. This temporarily raises the height of the entire suction nozzle assembly 43 to prevent it from deforming and being damaged by touching the ground. After passing through the bumpy section, the swing mechanism 42 can swing down again, allowing the suction nozzle assembly 43 to return to its original position, thus allowing the suction nozzle assembly 43 to adapt to the road surface.

[0050] In practice, the swing mechanism 42 can be configured in many ways. In order for the swing mechanism 42 to be able to be lifted after being compressed and to return to its original position after the road surface returns to normal, the swing mechanism 42 includes a first drive cylinder 421 hinged to the mounting bracket 41, and at least one deflector rod 422 hinged at both ends to the mounting bracket 41 and the suction nozzle assembly 43 respectively. The output end of the first drive cylinder 421 is fixed to the top of the deflector rod 422 through a hinge seat 423. In this embodiment, the first drive cylinder 421 is used to push the deflector rod 422 connected to the suction nozzle assembly 43 downward by pushing it out. After the suction nozzle assembly 43 is pushed up by the guide wheel 44, the first drive cylinder 421 is retracted by force. After the external force disappears, the first drive cylinder 421 can be pushed out again.

[0051] In existing drive structures, some use all-electric methods and others use all-hydraulic cylinder methods, but neither is suitable for water treatment environments. In this embodiment, the pneumatic mechanism includes a first pneumatic valve 61 connecting the sprinkler mechanism 30 and the independent water tank 21, a second pneumatic valve 62 connecting the independent water tank 21 and the clean water tank 22, a third pneumatic valve 63 connecting the second pneumatic valve 62 and the water pump 50, and a fourth pneumatic valve 64 connecting the water pump 50 and the clean water tank 22. All connections between the structures are pneumatic, and multiple pneumatic valves are controlled by the same pneumatic system. By switching the relationship between different flow paths through the pneumatic system, the impact of hydraulic oil leakage on water quality in hydraulic control can be avoided.

[0052] Since the suction nozzle assembly 43 needs to move up and down, but it needs to always be connected to the connecting pipe 261 to ensure that the pumped sewage always enters the tank assembly 20, the suction nozzle assembly 43 includes a sealing slide 431 inserted into the connecting pipe 261, a suction nozzle 432 welded to the bottom of the sealing slide 431, an mounting rod 433 connecting the two suction nozzles 432, and a guide wheel 44 mounted on the mounting rod 433. The sealing slide 431 is provided in the suction nozzle assembly 43, and the suction nozzle assembly 43 is connected to the connecting pipe 261 through the sealing slide 431, so that the two can always be connected while also being able to move up and down relative to each other.

[0053] Specifically, the interior of the connecting pipe 261 is provided with several annularly arranged grooves 2611. The sealing slide 431 includes an inner connecting rib 4311 that is movably inserted into the groove 2611, and an outer connecting rib 4312 located outside the inner connecting rib 4311 and movably fitted to the outside of the groove 2611. The sealing slide 431 is inserted into the connecting pipe 261, and the groove 2611 is provided inside the connecting pipe 261. Two sealing structures are provided inside the sealing slide 431. As the sealing slide 431 slides upward, the inner connecting rib 4311 and the outer connecting rib 4312 of the sealing slide 431 cooperate with the sealing groove 2611 to ensure a sealed state. The pumped sewage can never leak out from the gap between the sealing slide 431 and the connecting pipe 261.

[0054] On the outside of the sealing slide 431 and the connecting pipe 261, a sealing sleeve 45 seals the entire outer side of the sealing slide 431 and the connecting pipe 261. Through the sealing groove 2611 of the inner connecting rib 4311 and the outer connecting rib 4312, as well as the sealing sleeve 45, the sealing slide 431 and the connecting pipe 261 can move up and down stably and in a sealed manner. The length of the sealing sleeve 45 can be set according to the stroke of the sealing slide 431 in the connecting pipe 261, ensuring that the sealing sleeve 45 is within the sealing range whether it is at its highest point or at its lowest point.

[0055] In this embodiment, the negative pressure source of the suction nozzle 432 also comes from the water pump 50, and it can be as follows: Figure 5 The folded plate structure in the middle can also be like Figure 6 The curved structure of the middle part allows for more suction holes, making it easier to perform suction actions.

[0056] During the process of suction nozzle 432 suctioning sewage from the road surface, if there is a deep depression in the ground, the amount of sewage stored in that location will be relatively large. At the normal operating speed of the sprinkler truck, suction nozzle 432 will not be able to completely remove all the sewage, resulting in some sewage residue. To address this, a liquid level sensor 4321 is installed on the side of suction nozzle 432 near the guide wheel 44. When the liquid level sensor 4321 comes into contact with liquid, it sends an electrical signal to the cab of the vehicle frame 10. When sewage reaches the liquid level sensor 4321, it indicates that the sewage level at that location is high. The liquid level sensor 4321 then sends a signal to the driver's cab, instructing the driver to slow down and process the current area at a slower pace, so that even areas with a large amount of sewage accumulation can be better treated.

[0057] Wastewater entering the tank assembly 20 needs to be treated by the filter screen 24. However, in reality, since the amount of wastewater pumped each time is small, most impurities adhere to the lower layer of the filter screen 24, thus clogging it. Meanwhile, the upper layer of the filter screen 24 is not fully utilized. To address this, a guide plate 251 is hinged to the side of the water inlet guide pipe 25 facing the filter screen 24. A push rod motor 252 is hinged to the outer arc surface of the guide plate 251. The fixed end of the push rod motor 252 is hinged to the water inlet guide pipe 25. The position of the guide plate 251 can be adjusted by the push rod motor 252, thereby distributing the pumped wastewater to different positions and ensuring that the filter screen 24 is used evenly, thus avoiding the phenomenon of excessive use in some areas while other areas are not fully utilized.

[0058] The above processes all occur within the tank assembly 20, which is an unsupervised state, making it impossible to determine the usage status of the filter screen 24. To address this, a flow sensor 4322 is installed on the top of the inner side of the suction nozzle 432. The flow sensor 4322 is electrically connected to the push rod motor 252. The flow sensor 4322 monitors the amount of water passing through, and when the water volume reaches the rated standard, the flow sensor 4322 sends a signal to the push rod motor 252, causing the push rod motor 252 to adjust its angle. This adjustment is made each time the water volume changes, ensuring that the filter screen 24 is used evenly.

[0059] After the tank assembly 20 has been used for a period of time, some dirt will accumulate inside, and there will also be a lot of impurities on the filter screen 24. The tank assembly 20 also includes an internal flushing device 26 located on the left side of the filter screen 24. The pneumatic mechanism also includes a fifth pneumatic valve 65 connected between the internal flushing device 26 and the water pump 50. The internal flushing device 26 is used for backflushing, and the tailgate 23 is opened to flush away the dirt on the filter screen 24 and the dirt inside the tank.

[0060] Since the impurities on the filter screen 24 are relatively evenly distributed, the internal rinsing device 26 includes a connecting pipe 261 inserted into the fifth pneumatic valve 65, a rinsing head 262 hinged to the top of the connecting pipe 261 and communicating with the inside of the connecting pipe 261, and a tilting motor 263 fixed to the side of the connecting pipe 261. The tilting motor 263 is installed on the internal rinsing device 26 to adjust the angle of the internal rinsing device 26, so that the filter screen 24 can be rinsed more evenly and can still be fully utilized when watering next time.

[0061] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A sprinkler truck with wastewater collection function, characterized in that, include: One frame (10); The tank assembly (20) is fixed to the frame (10). The tank assembly (20) includes an independent water tank (21), a clean water tank (22) separated from the independent water tank (21), a tailgate (23) movably installed on the side of the clean water tank (22) away from the independent water tank (21), a filter screen (24) disposed inside the clean water tank (22), and a water inlet guide pipe (25) located on the right side of the filter screen (24). A water spraying mechanism (30) is provided, the water inlet of which is connected to an independent water tank (21), and the water outlet of which extends through a pipe to the bottom of the front end of the frame (10). A water pump (50) is locked under the frame (10), and the water pump (50) is connected to the tank assembly (20), the water spraying mechanism (30), and the nozzle assembly (40) via a pneumatic mechanism; A suction nozzle assembly (40) includes a mounting bracket (41) fixed to the bottom of the rear end of the frame (10), a swing mechanism (42) movably mounted on the mounting bracket (41) and facing upward, a suction nozzle assembly (43) hinged to the end of the swing mechanism (42), and a guide wheel (44) fixed to the bottom of the suction nozzle assembly (43). The top of the suction nozzle assembly (43) is inserted into the inside of the water inlet guide pipe (25), and the guide wheel (44) contacts the ground under the swing of the swing mechanism (42). The swing mechanism (42) includes a first drive cylinder (421) hinged to the mounting frame (41), and at least one deflector rod (422) hinged at both ends to the mounting frame (41) and the nozzle assembly (43) respectively. The output end of the first drive cylinder (421) is fixed to the top of the deflector rod (422) by a hinge seat (423). The tank assembly (20) also includes an internal flushing device (26) located on the left side of the filter screen (24), and the pneumatic mechanism also includes a fifth pneumatic valve (65) connected between the internal flushing device (26) and the water pump (50); The internal flushing device (26) includes a connecting pipe (261) inserted into the fifth pneumatic valve (65), a flushing head (262) hinged to the top of the connecting pipe (261) and communicating with the inside of the connecting pipe (261), and a tilting motor (263) fixed to the side of the connecting pipe (261). The suction nozzle assembly (43) includes a sealing slide (431) inserted into the connecting tube (261), a suction nozzle (432) welded to the bottom of the sealing slide (431), a mounting rod (433) connecting the two suction nozzles (432), and a guide wheel (44) mounted on the mounting rod (433). The interior of the connecting pipe (261) is provided with a plurality of annularly arranged grooves (2611). The sealing slide (431) includes an inner connecting rib (4311) that is movably inserted into the interior of the groove (2611), an outer connecting rib (4312) that is located outside the inner connecting rib (4311) and movably fitted to the outside of the groove (2611), and a sealing sleeve (45) is fitted to the outside of the connection position between the connecting pipe (261) and the sealing slide (431).

2. A sprinkler truck with wastewater collection function according to claim 1, characterized in that, The pneumatic mechanism includes a first pneumatic valve (61) connecting the sprinkler mechanism (30) and the independent water tank (21), a second pneumatic valve (62) connecting the independent water tank (21) and the clean water tank (22), a third pneumatic valve (63) connecting the second pneumatic valve (62) and the water pump (50), and a fourth pneumatic valve (64) connecting the water pump (50) and the clean water tank (22).

3. A sprinkler truck with wastewater collection function according to claim 1, characterized in that, A liquid level sensor (4321) is provided on the side of the suction nozzle (432) near the guide wheel (44). The liquid level sensor (4321) sends an electrical signal to the cab of the vehicle frame (10) after contacting the liquid.

4. A sprinkler truck with wastewater collection function according to claim 1, characterized in that, A guide plate (251) is hinged to the side of the water inlet guide pipe (25) facing the filter screen plate (24). A push rod motor (252) is hinged to the outer arc surface of the guide plate (251). The fixed end of the push rod motor (252) is hinged to the water inlet guide pipe (25).

5. A sprinkler truck with wastewater collection function according to claim 4, characterized in that, A flow sensor (4322) is provided on the top of the inner side of the suction nozzle (432), and the flow sensor (4322) is electrically connected to the push rod motor (252).

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