An all-electric sprinkler truck

Abstract

The present application relates to a pure electric sprinkler truck, belonging to the technical field of sprinkler trucks, and comprising: a water storage tank; a filtering floating plate, with a concave top surface and a water inlet hole opened at the central position; a filter screen, connected to the top surface of the filtering floating plate; a water filling assembly, including a main water filling pipe and a branch water filling pipe; a sewage discharge assembly, including a telescopic rod, a sealing part, a two-way pump, a reversing part, a water suction pipe and a sewage discharge pipe; wherein, the filter screen can filter water with a large effective filtering area, increasing the water filtration volume, the sealing part can seal the water inlet hole to make the chambers on both sides of the filtering floating plate independent, the two-way pump can first pump water to wash the filter screen, and can then pump water in the reverse direction to discharge water and impurities. The present application has the effect of facilitating the filtration of a large amount of water filled into the sprinkler truck.

Description

Technical Field

[0001] This application relates to the technical field of sprinkler trucks, and in particular to a pure electric sprinkler truck. Background Art

[0002] Sprinkler trucks have functions such as road flushing, lawn greening, green belt sprinkler irrigation, and pesticide spraying, and are important equipment for road cleaning and landscaping.

[0003] Chinese Patent with publication number CN211558320U discloses a new type of multi-functional greening sprinkler truck, which filters the water filled into the water storage tank by setting a filter cartridge at the water inlet pipe to prevent impurities in the water from blocking the nozzles.

[0004] Although the filter cartridge in the above solution realizes the filtration of water, due to the small volume of the filter cartridge, the water filtration volume of the filter cartridge is low. In the case of filtering a large amount of water, there is a problem that the filter cartridge needs to be frequently replaced or cleaned. At the same time, since the filter cartridge is installed on the top of the water storage tank along with the water inlet pipe, the filter cartridge is inconvenient to replace or clean, thus making it inconvenient to filter a large amount of water filled into the sprinkler truck. Summary of the Invention

[0005] In order to facilitate the filtration of a large amount of water filled into the sprinkler truck, this application provides a pure electric sprinkler truck.

[0006] A pure electric sprinkler truck provided by this application adopts the following technical solutions:

[0007] A pure electric sprinkler truck includes:

[0008] A water storage tank;

[0009] A filtering floating plate, which is slidably arranged vertically in the water storage tank. The shape of the filtering floating plate is adapted to the cross-sectional shape of the water storage tank. The top surface of the filtering floating plate is concave. A through water inlet hole is opened at the central position of the filtering floating plate. The density of the filtering floating plate is less than the density of water;

[0010] A filter screen, which is annular and connected to the top surface of the filtering floating plate. The top end of the filter screen is lower than the edge position of the top surface of the filtering floating plate. The water inlet hole is located within the area surrounded by the filter screen;

[0011] A water filling assembly, including a water filling main pipe and water filling branch pipes. The water filling main pipe penetrates through the top of the water storage tank and is used for filling water into the water storage tank. The water filling branch pipes are located in the water storage tank and are arranged close to the top of the water storage tank. A plurality of water filling branch pipes are arranged around the water filling main pipe. One ends of all the water filling branch pipes are connected to one end of the water filling main pipe located in the water storage tank, and the other ends of the water filling branch pipes are close to the side wall of the water storage tank;

[0012] The sewage discharge assembly includes a telescopic rod, a closing part, a two-way pump, a reversing part, a water suction pipe and a sewage discharge pipe;

[0013] Among them,

[0014] The telescopic rod is located inside the water storage tank. The fixed end of the telescopic rod is connected to the top of the water storage tank. The telescopic rod is arranged opposite to the water inlet hole. A spring is arranged in the rod chamber of the telescopic rod, and the spring is used to drive the telescopic rod to contract;

[0015] The closing part is connected to the movable end of the telescopic rod. When the filtering floating plate floats to the top of the water storage tank and the water level in the water storage tank is between the lowest point of the top surface of the filtering floating plate and the top of the filter net, the closing part can overcome the elastic force of the spring to drive the telescopic rod to extend, and the closing part can close the water inlet hole;

[0016] The inside of the movable end of the telescopic rod is hollow. The movable end of the telescopic rod is communicated with the rodless cavity of the telescopic rod, and a flushing and discharging hole is opened on the movable end of the telescopic rod. The flushing and discharging hole is opened near the closing part. The movable end of the telescopic rod is rotatably connected to the fixed end of the telescopic rod. When the water flow flows from the rodless cavity of the telescopic rod through the movable end of the telescopic rod to the flushing and discharging hole, the movable end of the telescopic rod can rotate forward. When the water flow flows from the flushing and discharging hole through the movable end of the telescopic rod to the rodless cavity of the telescopic rod, the movable end of the telescopic rod can rotate reversely;

[0017] The two-way pump is connected to the top of the water storage tank. One port of the two-way pump is communicated with the rodless cavity of the telescopic rod, the other port of the two-way pump is connected to the reversing part, the reversing part is respectively connected to the water suction pipe and the sewage discharge pipe, the end of the water suction pipe far from the reversing part is located inside the water storage tank, and the end of the sewage discharge pipe far from the reversing part penetrates out of the water storage tank. The reversing part is connected to the movable end of the telescopic rod, and the reversing part is used to control the connection between the two-way pump and the water suction pipe or control the connection between the two-way pump and the sewage discharge pipe;

[0018] Under normal conditions, the reversing part controls the connection between the two-way pump and the water suction pipe. When the two-way pump pumps water to make the movable end of the telescopic rod rotate forward, the reversing part maintains the connection between the two-way pump and the water suction pipe by means of the driving force formed by the rotation of the movable end of the telescopic rod. When the two-way pump pumps water to make the movable end of the telescopic rod rotate reversely, the reversing part controls the connection between the two-way pump and the sewage discharge pipe by means of the driving force formed by the rotation of the movable end of the telescopic rod.

[0019] Optionally, the closing part includes a closing plate and a sinking sponge. The closing plate is connected to the movable end of the telescopic rod, and the sinking sponge is connected to the closing plate.

[0020] Optionally, the sinking sponge is located on the side of the closing plate close to the telescopic rod. A dirt blocking plate is connected to the side of the sinking sponge far from the closing plate. After the sinking sponge absorbs water and pulls the closing plate to close the water inlet hole, the dirt blocking plate closes the water inlet hole.

[0021] Optionally, the water inlet hole is in an inverted conical shape, the dirt blocking plate is made of ferromagnetic material, an extrusion magnetic ring is embedded at the top end of the hole wall of the water inlet hole. After the sinking sponge absorbs water and pulls the closing plate to close the water inlet hole, the dirt blocking plate is located at the extrusion magnetic ring and is magnetically connected to the extrusion magnetic ring.

[0022] Optionally, a plurality of rotating fan blades are connected to the inner wall of the movable end of the telescopic rod. The plurality of rotating fan blades are arranged around the rotation axis of the movable end of the telescopic rod. When there is water flow in the movable end of the telescopic rod, the water flow drives the rotating fan blades to enable the movable end of the telescopic rod to rotate.

[0023] Optionally, the commutation part includes a commutation box, a commutation baffle and a torsion spring. The two-way pump is communicated with the side wall of the commutation box. The water suction pipe and the sewage discharge pipe are respectively located on both sides of the connection between the two-way pump and the commutation box. The water suction pipe and the sewage discharge pipe are both communicated with the side wall of the commutation box. The commutation baffle is located inside the commutation box. One end of the commutation baffle is connected with a commutation shaft, and the commutation shaft is rotatably connected with the commutation box. The commutation shaft is directly opposite to the connection between the commutation box and the two-way pump. The other end of the commutation baffle is used for abutting against the inner wall of the commutation box;

[0024] When the abutting position of the commutation baffle and the commutation box is between the two-way pump and the sewage discharge pipe, the commutation baffle makes the two-way pump communicate with the water suction pipe. When the abutting position of the commutation baffle and the commutation box is between the two-way pump and the water suction pipe, the commutation baffle makes the two-way pump communicate with the sewage discharge pipe. The torsion spring is arranged on the commutation shaft, and the two ends of the torsion spring are respectively connected with the commutation shaft and the commutation box. The torsion spring is used to drive the end of the commutation baffle to abut between the two-way pump and the sewage discharge pipe.

[0025] Optionally, the commutation part further includes a commutation iron ring, a commutation magnetic ring and a belt drive. The commutation iron ring is embedded on the outer wall of the movable end of the telescopic rod. The commutation magnetic ring is rotatably connected to the fixed end of the telescopic rod and sleeved on the movable end of the telescopic rod. One end of the commutation shaft rotates out of the commutation box, and the belt drive connects the commutation magnetic ring and the commutation shaft;

[0026] When the closing part closes the water inlet hole, the commutation iron ring moves to the commutation magnetic ring and is magnetically connected to the commutation magnetic ring. When the commutation iron ring rotates forward with the movable end of the telescopic rod, the commutation iron ring drives the commutation magnetic ring to make the abutting position of the commutation baffle and the commutation box be between the two-way pump and the sewage discharge pipe. When the commutation iron ring rotates reversely with the movable end of the telescopic rod, the commutation iron ring drives the commutation magnetic ring to make the abutting position of the commutation baffle and the commutation box be between the two-way pump and the water suction pipe.

[0027] Optionally, it further includes an estimation component. The estimation component includes an air duct, the air duct is connected to the water storage tank, a fan is arranged inside the air duct, the fan is arranged near the bottom end of the air duct, the fan is connected with a rotating shaft, the rotating shaft rotates through the water spraying pipe communicated with the bottom end of the water storage tank, a water spraying pump is arranged on the water spraying pipe, and one end of the rotating shaft located inside the water spraying pipe is connected with an impeller. When the water spraying pump sucks the water in the water storage tank, the water flow in the water spraying pipe can drive the impeller to rotate;

[0028] A sliding ring is slidably arranged in the air duct. The sliding ring is connected to the filtering floating plate. When the filtering floating plate slides vertically, the sliding ring slides in the air duct. An elastic breathable film is connected inside the sliding ring, and a strain gauge is connected to the elastic breathable film. The strain gauge is electrically connected to a controller, and the controller is electrically connected to a display screen. The display screen is used to be installed in the cab of the sprinkler truck. The strain gauge is used to output the deformation signal of the elastic breathable film. The controller responds to the deformation signal and is used to control the display screen to display the spraying time of the water in the water storage tank. When the deformation signal is larger, the spraying time displayed on the display screen is shorter.

[0029] Optionally, an installation hole is opened on the side wall of the water storage tank. An installation plate is hermetically arranged at the installation hole. The air duct is connected to the installation plate. A sliding hole is opened on one side of the air duct close to the installation plate. A first magnetic block is slidably arranged in the sliding hole. The first magnetic block is connected to the sliding ring. A second magnetic block is embedded in the filtering floating plate. The second magnetic block is arranged opposite to the first magnetic block with the installation plate in between. The first magnetic block and the second magnetic block are magnetically connected.

[0030] Optionally, there is a part of the installation plate that is exposed outside the air duct. The installation plate is made of acrylic material.

[0031] In summary, the present application includes at least one of the following beneficial technical effects:

[0032] 1. A pure electric sprinkler truck of the present application includes a water storage tank, a filtering floating plate, a filter screen, a water filling assembly, and a sewage discharging assembly. Among them, the main water filling pipe and the sub-water filling pipes allow water to be added to the water storage tank along the wall. The water flow flows from the edge of the filtering floating plate to the water inlet hole, so that the filter screen can filter water with a larger effective filtering area, increasing the water filtration volume; the sinking sponge can seal the water inlet hole after absorbing water, so that the chambers on both sides of the filtering floating plate are independent. The two-way pump sucks water through the water suction pipe to wash the filter screen, so that the filter screen can be cleaned. The two-way pump sucks water reversely through the flushing and discharging hole to discharge water and impurities, so that the filter screen does not need to be frequently cleaned or replaced during the process of filtering a large amount of water, so that a large amount of water replenished into the water storage tank is convenient to be filtered.

[0033] 2. A pure electric sprinkler truck of the present application further includes an estimated time component. Among them, the water flow in the water spraying pipe can drive the fan to rotate, so that the fan can form a wind blowing on the elastic breathable film. The filtering floating plate can drive the elastic breathable film to slide through the first magnetic block and the second magnetic block, so that the distance between the elastic breathable film and the fan can be adapted to the water level height. The magnitude of the deformation of the elastic breathable film depends on the distance between itself and the fan and the magnitude of the fan wind force. The strain gauge outputs the deformation signal of the elastic breathable film, and the controller displays the deformation signal to the driver through the display screen, so that the driver can reasonably arrange the time of the spraying operation and the water replenishing operation. Description of the Drawings

[0034] Figure 1 is a schematic structural view of an embodiment of the present application;

[0035] Figure 2 is a schematic structural view of the filtering floating plate floating at the highest position;

[0036] Figure 3 is a sectional view of the sewage discharge assembly;

[0037] Figure 4 is a schematic structural view of the sewage discharge assembly;

[0038] Figure 5 is Figure 2 an enlarged view of part A in

[0039] Description of the reference numerals:

[0040] 1. Water storage tank; 11. Mounting hole; 12. Mounting plate; 13. Water spraying pipe; 14. Water spraying pump; 2. Filtering floating plate; 21. Water inlet hole; 22. Extrusion magnetic ring; 3. Filter net; 4. Water filling assembly; 41. Water filling main pipe; 42. Water filling branch pipe; 5. Sewage discharge assembly; 51. Telescopic rod; 511. Spring; 512. Flushing and discharging hole; 513. Rotating fan blade; 52. Sealing part; 521. Sealing plate; 522. Sinking sponge; 523. Anti-pollution plate; 53. Two-way pump; 54. Reversing part; 541. Reversing box; 542. Reversing baffle; 5421. Reversing shaft; 543. Torsion spring; 544. Reversing iron ring; 545. Reversing magnetic ring; 546. Belt drive; 55. Water suction pipe; 56. Sewage discharge pipe; 6. Time estimation assembly; 61. Air duct; 611. Slide hole; 62. Fan; 621. Rotating shaft; 622. Impeller; 63. Sliding ring; 64. Elastic breathable film; 65. Strain gauge; 66. Controller; 67. Display screen; 68. First magnetic block; 69. Second magnetic block. Detailed implementation manners

[0041] The following Figures 1-5 further describes the present application in detail with reference to the attached drawings.

[0042] An embodiment of the present application discloses a pure electric sprinkler truck. Referring to Figure 1 and Figure 2 a pure electric sprinkler truck includes a water storage tank 1, a filtering floating plate 2, a filter net 3, a water filling assembly 4 and a sewage discharge assembly 5.

[0043] Referring to Figure 2 and Figure 3, the water storage tank 1 is in the shape of a rectangular box and is horizontally arranged. The filtering floating plate 2 is slidably arranged vertically in the water storage tank 1. The shape of the filtering floating plate 2 is adapted to the shape of the cross-section of the water storage tank 1. The top surface of the filtering floating plate 2 is concave. A through water inlet hole 21 is provided at the central position of the filtering floating plate 2. The density of the filtering floating plate 2 is less than that of water, and the filtering floating plate 2 can float when water is filled in the water storage tank 1.

[0044] The filter net 3 is annular and fixedly connected to the top surface of the filtering floating plate 2. The top end of the filter net 3 is lower than the edge position of the top surface of the filtering floating plate 2. The water inlet hole 21 is located in the area surrounded by the filter net 3. Water is added to the water storage tank 1 close to the side wall of the water storage tank 1. The water flow flows along the top surface of the filtering floating plate 2, and the filter net 3 filters the water flow. Since the water flow flows from the edge position of the filtering floating plate 2 to the central position of the filtering floating plate 2, the effective filtering area of the filter net 3 can be larger than the effective filtering area of the filter cartridge. In the case of filtering a large amount of water, the filter net 3 does not need to be frequently replaced or cleaned.

[0045] Refer to Figure 2 , in order to improve the filtering effect, three filter nets 3 are sleeved layer by layer. From the outer layer to the inner layer, the filtering precision of the three filter nets 3 increases layer by layer.

[0046] The water filling assembly 4 includes a water filling main pipe 41 and water filling branch pipes 42. The water filling main pipe 41 is fixedly penetrated through the top end of the water storage tank 1 and is used to fill water into the water storage tank 1. The water filling branch pipes 42 are located in the water storage tank 1 and are arranged close to the top end of the water storage tank 1. The water filling branch pipes 42 are fixedly connected to the water storage tank 1. A plurality of water filling branch pipes 42 are arranged around the water filling main pipe 41. One ends of all the water filling branch pipes 42 are connected to one end of the water filling main pipe 41 located in the water storage tank 1, and the other ends of the water filling branch pipes 42 are close to the side wall of the water storage tank 1.

[0047] Refer to Figure 4 , the sewage discharge assembly 5 includes a telescopic rod 51, a closing part 52, a two-way pump 53, a reversing part 54, a water suction pipe 55 and a sewage discharge pipe 56.

[0048] Refer to Figure 2 and Figure 3 , the telescopic rod 51 is located in the water storage tank 1. The fixed end of the telescopic rod 51 is fixedly connected to the top end of the water storage tank 1. The telescopic rod 51 is arranged opposite to the water inlet hole 21. A spring 511 is arranged in the rod cavity of the telescopic rod 51. One end of the spring 511 is fixedly connected to the fixed end of the telescopic rod 51, and the other end is fixedly connected to the movable end of the telescopic rod 51. The spring 511 is used to drive the telescopic rod 51 to contract.

[0049] The closing part 52 is connected to the movable end of the telescopic rod 51. When the filtering floating plate 2 floats to the top of the water storage tank 1 and the water level in the water storage tank 1 is between the lowest point of the top surface of the filtering floating plate 2 and the top end of the filter net 3, the closing part 52 can drive the telescopic rod 51 to extend against the elastic force of the spring 511, and the closing part 52 can close the water inlet hole 21. At this time, the spaces on both sides of the filtering floating plate 2 form two independent chambers.

[0050] Referring to Figure 3 , the interior of the movable end of the telescopic rod 51 is hollow. The movable end of the telescopic rod 51 is communicated with the rodless cavity of the telescopic rod 51, and a plurality of punching and discharging holes 512 are formed in the movable end of the telescopic rod 51. The plurality of punching and discharging holes 512 are arranged around the telescopic direction of the telescopic rod 51. The punching and discharging holes 512 are arranged close to the closing part 52. The movable end of the telescopic rod 51 is rotatably connected to the fixed end of the telescopic rod 51. When the water flow flows from the rodless cavity of the telescopic rod 51 through the movable end of the telescopic rod 51 to the punching and discharging holes 512, the movable end of the telescopic rod 51 can rotate forward. When the water flow flows from the punching and discharging holes 512 through the movable end of the telescopic rod 51 to the rodless cavity of the telescopic rod 51, the movable end of the telescopic rod 51 can rotate reversely. By rotating the movable end of the telescopic rod 51, the orientation of each punching and discharging hole 512 can be adjusted in a full circle.

[0051] Referring to Figure 2 and Figure 4 , the two-way pump 53 is fixedly connected to the top end inside the water storage tank 1. One port of the two-way pump 53 is communicated with the rodless cavity of the telescopic rod 51, and the other port of the two-way pump 53 is connected to the reversing part 54. The reversing part 54 is respectively connected to the water suction pipe 55 and the sewage discharge pipe 56. One end of the water suction pipe 55 far from the reversing part 54 is located inside the water storage tank 1, and one end of the sewage discharge pipe 56 far from the reversing part 54 penetrates out of the water storage tank 1. The reversing part 54 is connected to the movable end of the telescopic rod 51. The reversing part 54 is used to control the connection between the two-way pump 53 and the water suction pipe 55 or control the connection between the two-way pump 53 and the sewage discharge pipe 56. When the two-way pump 53 is connected to the water suction pipe 55, the two-way pump 53 can pump the water in the chamber above the filtering floating plate 2, so that the water flow can flow out from the punching and discharging holes 512, and the filter net 3 can be backwashed and cleaned under the action of the water flow. When the two-way pump 53 is connected to the sewage discharge pipe 56, the two-way pump 53 can pump the water after flushing the filter net 3 and discharge the water and impurities out of the water storage tank 1.

[0052] Referring to Figure 3 and Figure 4, under normal conditions, the commutation part 54 regulates the connection between the two-way pump 53 and the water suction pipe 55. When the two-way pump 53 pumps water and the movable end of the telescopic rod 51 rotates forward, the commutation part 54 maintains the connection between the two-way pump 53 and the water suction pipe 55 by means of the driving force formed by the rotation of the movable end of the telescopic rod 51. When the two-way pump 53 pumps water and the movable end of the telescopic rod 51 rotates reversely, the commutation part 54 regulates the connection between the two-way pump 53 and the sewage discharge pipe 56 by means of the driving force formed by the rotation of the movable end of the telescopic rod 51. Since the rotation of the movable end of the telescopic rod 51 requires water to flow through its own movable end first, the commutation part 54 will first regulate the connection between the two-way pump 53 and the water suction pipe 55 so that the water can first perform backwashing on the filter screen 3.

[0053] During use, water is introduced into the water filling main pipe 41. The water flows along the water filling main pipe 41 and the water filling branch pipe 42 to the side wall of the water storage tank 1. The water flows from the side wall of the water storage tank 1 to the top surface of the filter floating plate 2. Under the guiding action of the top surface of the filter floating plate 2, the water flow first passes through the filter screen 3 and then flows into the space below the filter floating plate 2 through the water inlet hole 21 to realize the water replenishment operation of the water storage tank 1. Since the filter screen 3 has a large effective filtration area, the water filtration volume of the filter screen 3 is increased. During a single water replenishment process of the water storage tank 1, there is no need to frequently replace or clean the filter screen 3.

[0054] As the water level in the water storage tank 1 continuously rises, the filter floating plate 2 will gradually slide to the top of the water storage tank 1. After that, the water flowing into the water storage tank 1 will be stored in the space above the filter floating plate 2. As the water level rises, the closing part 52 can drive the telescopic rod 51 to extend and close the water inlet hole 21, making it difficult for water to flow between the chambers on the upper and lower sides of the filter floating plate 2.

[0055] Under the action of the commutation part 54, the two-way pump 53 can first be connected to the water suction pipe 55. The two-way pump 53 can suck the water in the chamber above the filter floating plate 2, so that the water flows into the movable end of the telescopic rod 51 through the rodless chamber of the telescopic rod 51 and then flows out from the flushing and discharging hole 512 on the movable end of the telescopic rod 51. The water flow drives the movable end of the telescopic rod 51 to rotate forward. On the one hand, the water flow flowing out from the flushing and discharging hole 512 can comprehensively wash the filter screen 3. On the other hand, the driving force formed by the forward rotation of the movable end of the telescopic rod 51 can maintain the connection between the two-way pump 53 and the water suction pipe 55, making the flushing process of the filter screen 3 stable and reliable.

[0056] After the filter screen 3 is washed and cleaned, the two-way pump 53 pumps water in the reverse direction, so that the water flows into the movable end of the telescopic rod 51 and the rodless chamber of the telescopic rod 51 through the flushing and discharging hole 512. The water flow drives the movable end of the telescopic rod 51 to rotate reversely. The commutation part 54 regulates the connection between the two-way pump 53 and the sewage discharge pipe 56 by means of the driving force formed by the reverse rotation of the movable end of the telescopic rod 51, so that the water in the rodless chamber of the telescopic rod 51 can be discharged from the sewage discharge pipe 56 out of the water storage tank 1.

[0057] Water is filtered through a filter screen 3 with a large effective filtration area, and then the water in the upper chamber of the filter floating plate 2 is used to wash the filter screen 3. Then, the washed water is discharged from the water storage tank 1, enabling a large amount of the water replenished into the water storage chamber to be filtered, and the filter screen 3 can be cleaned after water replenishment, reducing the manual labor intensity during the water replenishment operation of the water storage tank 1 and reducing the manual operation process, thus facilitating the filtration of a large amount of water loaded into the sprinkler truck.

[0058] Specifically, referring to Figure 3 , the closing part 52 includes a closing plate 521 and a sinking sponge 522. The closing plate 521 is fixedly connected to the movable end of the telescopic rod 51, and the sinking sponge 522 is fixedly connected to the closing plate 521. When the water level is between the lowest point of the top surface of the filter floating plate 2 and the top end of the filter screen 3, the sinking sponge 522 can absorb water to increase its own weight, and the weighted sinking sponge 522 can drive the closing plate 521 to pull the telescopic rod 51 to extend against the elastic force of the spring 511, so that the closing plate 521 can automatically and timely close the water inlet hole 21 by using the water replenished into the water storage tank 1.

[0059] Furthermore, referring to Figure 3 , the sinking sponge 522 is located on the side of the closing plate 521 close to the telescopic rod 51. A dirt blocking plate 523 is fixedly connected to the side of the sinking sponge 522 away from the closing plate 521. After the sinking sponge 522 absorbs water and pulls the closing plate 521 to close the water inlet hole 21, the dirt blocking plate 523 closes the water inlet hole 21. The dirt blocking plate 523 can block the water after washing the filter screen 3 in the upper chamber of the filter floating plate 2 from contacting the sinking sponge 522, making it difficult for the sinking sponge 522 to adsorb impurities.

[0060] Even further, referring to Figure 3 , the water inlet hole 21 is in an inverted conical shape, the dirt blocking plate 523 is made of a ferromagnetic material, and an extrusion magnetic ring 22 is fixedly embedded at the top of the hole wall of the water inlet hole 21. After the sinking sponge 522 absorbs water and pulls the closing plate 521 to close the water inlet hole 21, the dirt blocking plate 523 is located at the extrusion magnetic ring 22 and is magnetically connected to the extrusion magnetic ring 22.

[0061] When the water level in the water storage tank 1 drops due to use, the filter floating plate 2 slides down with the water level. Since the extrusion magnetic ring 22 is magnetically connected to the dirt blocking plate 523, when the extrusion magnetic ring 22 moves down following the filter floating plate 2, it can drive the dirt blocking plate 523 to move down. Since the water inlet hole 21 is in an inverted conical shape, after the filter floating plate 2 moves down, the closing plate 521 can open the water inlet hole 21, enabling the dirt blocking plate 523 to squeeze the sinking sponge 522 to discharge the water adsorbed by the sinking sponge 522, so that the sinking sponge 522, the closing plate 521, and the dirt blocking plate 523 can automatically reset after the extrusion magnetic ring 22 and the dirt blocking plate 523 are separated.

[0062] Referring to Figure 3, In order to enable the movable end of the telescopic rod 51 to rotate under the drive of water flow, a plurality of rotating fan blades 513 are fixedly connected to the inner wall of the movable end of the telescopic rod 51. The plurality of rotating fan blades 513 are arranged around the rotation axis of the movable end of the telescopic rod 51. When there is water flow in the movable end of the telescopic rod 51, the water flow drives the rotating fan blades 513 to enable the movable end of the telescopic rod 51 to rotate.

[0063] When there is water flow in the movable end of the telescopic rod 51, the water flow can impact on each rotating fan blade 513. The impact force of the water flow acting on the rotating fan blade 513 drives the movable end of the telescopic rod 51 to rotate. And when the flow direction of the water flow changes, the rotation direction of the movable end of the telescopic rod 51 can change synchronously; since the extrusion magnetic ring 22 can fix the position of the dirt blocking plate 523 through magnetic attraction, it is not easy for the impact of the water flow on the rotating fan blade 513 to cause the movable end of the telescopic rod 51 to shrink and shake.

[0064] Specifically, referring to Figure 4 , the commutation part 54 includes a commutation box 541, a commutation baffle 542 and a torsion spring 543.

[0065] The two-way pump 53 is communicated with the side wall of the commutation box 541. The water suction pipe 55 and the sewage discharge pipe 56 are respectively located on both sides of the connection between the two-way pump 53 and the commutation box 541. The water suction pipe 55 and the sewage discharge pipe 56 are both communicated with the side wall of the commutation box 541. The commutation baffle 542 is located inside the commutation box 541. One end of the commutation baffle 542 is fixedly connected with a commutation shaft 5421. The commutation shaft 5421 is rotationally connected with the commutation box 541. The commutation shaft 5421 is directly opposite to the connection between the commutation box 541 and the two-way pump 53. The other end of the commutation baffle 542 is used for abutting against the inner wall of the commutation box 541.

[0066] When the abutting position of the commutation baffle 542 and the commutation box 541 is between the two-way pump 53 and the sewage discharge pipe 56, the commutation baffle 542 makes the two-way pump 53 communicate with the water suction pipe 55; when the abutting position of the commutation baffle 542 and the commutation box 541 is between the two-way pump 53 and the water suction pipe 55, the commutation baffle 542 makes the two-way pump 53 communicate with the sewage discharge pipe 56. The top end of the commutation shaft 5421 rotates out of the commutation box 541. The torsion spring 543 is arranged on the top end of the commutation shaft 5421. The two ends of the torsion spring 543 are respectively fixedly connected with the commutation shaft 5421 and the commutation box 541. The torsion spring 543 is used to drive the end of the commutation baffle 542 to abut between the two-way pump 53 and the sewage discharge pipe 56.

[0067] The elastic force of the torsion spring 543 can drive the end of the commutation baffle 542 to abut between the two-way pump 53 and the sewage discharge pipe 56. The commutation baffle 542 closes the sewage discharge pipe 56, so that the two-way pump 53 and the sewage discharge pipe 56 can maintain a connected state under normal conditions, which is beneficial for the two-way pump 53 to first suck the water in the upper chamber of the filter floating plate 2 to wash the filter net 3.

[0068] Further, referring to Figure 3 , the commutation part 54 further includes a commutation iron ring 544, a commutation magnetic ring 545, and a belt drive 546.

[0069] The commutation iron ring 544 is fixedly embedded on the outer wall of the movable end of the telescopic rod 51. The commutation magnetic ring 545 is rotatably connected to the fixed end of the telescopic rod 51 and sleeved on the movable end of the telescopic rod 51. One end of the commutation shaft 5421 rotatably penetrates through the commutation box 541, and the belt drive 546 connects the commutation magnetic ring 545 and the commutation shaft 5421.

[0070] When the closing part 52 closes the water inlet hole 21, the commutation iron ring 544 moves to the position of the commutation magnetic ring 545 and is magnetically attracted to the commutation magnetic ring 545, so that the movable end of the telescopic rod 51 can drive the commutation magnetic ring 545 to rotate in a non-contact manner; when the commutation iron ring 544 rotates forward with the movable end of the telescopic rod 51, the commutation iron ring 544 drives the commutation magnetic ring 545 to make the contact position between the commutation baffle 542 and the commutation box 541 located between the two-way pump 53 and the sewage pipe 56; when the commutation iron ring 544 rotates reversely with the movable end of the telescopic rod 51, the commutation iron ring 544 drives the commutation magnetic ring 545 to make the contact position between the commutation baffle 542 and the commutation box 541 located between the two-way pump 53 and the water suction pipe 55.

[0071] In particular, since the driving mode between the movable end of the telescopic rod 51 and the commutation magnetic ring 545 is non-contact, after the end of the commutation baffle 542 abuts against the inner wall of the commutation box 541, the movable end of the telescopic rod 51 can continue to rotate, while the commutation magnetic ring 545 can remain stationary under the action of magnetic attraction force, that is, the movable end of the telescopic rod 51 can keep the adjusted position of the commutation baffle 542 stable after driving the commutation baffle 542 to adjust the position.

[0072] Since the contact position between the commutation baffle 542 and the commutation box 541 is already located between the two-way pump 53 and the sewage pipe 56, when the two-way pump 53 first pumps water to wash the filter screen 3, the movable end of the telescopic rod 51 can rotate forward. The movable end of the telescopic rod 51 drives the commutation iron ring 544 to rotate. The commutation iron ring 544 drives the commutation magnetic ring 545 to have a tendency to rotate. The rotation tendency of the commutation magnetic ring 545 can be transmitted to the commutation shaft 5421 through the belt drive 546, so that the contact state between the commutation baffle 542 and the commutation box 541 is stable and reliable.

[0073] After flushing the filter screen 3, the two-way pump 53 pumps water in the reverse direction, causing the water flow to flow from the flushing and discharging holes 512 into the rodless cavity of the telescopic rod 51. At this time, the water flow can drive the movable end of the telescopic rod 51 to reverse. The movable end of the telescopic rod 51 can drive the reversing shaft 5421 to reverse through the reversing iron ring 544, the reversing magnetic ring 545, and the belt drive 546. The reversing shaft 5421 drives the reversing baffle 542 to deflect reversely, so that the end of the reversing baffle 542 can abut between the two-way pump 53 and the water suction pipe 55, enabling the two-way pump 53 to communicate with the sewage discharge pipe 56, and allowing the water and impurities in the rodless cavity of the telescopic rod 51 to be discharged from the sewage discharge pipe 56 to the water storage tank 1. Thus, by adjusting the water pumping direction of the two-way pump 53, the automatic switching between flushing and sewage discharge can be realized.

[0074] Referring to Figure 1 , in order to estimate the usage time of the water in the water storage tank 1 so that the driver can reasonably arrange the time for spraying operations and water replenishment operations, a pure electric sprinkler of the present application further includes an estimation component 6.

[0075] Referring to Figure 1 and Figure 2 , the estimation component 6 includes a vertically arranged air duct 61, the air duct 61 is connected to the water storage tank 1, a fan 62 is arranged in the air duct 61, the fan 62 is arranged near the bottom end of the air duct 61, the fan 62 is fixedly connected with a rotating shaft 621, the rotating shaft 621 rotates through the water spraying pipe 13 connected to the bottom end of the water storage tank 1, a water spraying pump 14 is arranged on the water spraying pipe 13, the water spraying pump 14 is used for sucking the water in the water storage tank 1 for spraying, one end of the rotating shaft 621 located in the water spraying pipe 13 is fixedly connected with an impeller 622, and the water flow in the water spraying pipe 13 can impact on some blades of the impeller 622. When the water spraying pump 14 sucks the water in the water storage tank 1, the water flow in the water spraying pipe 13 can drive the impeller 622 to rotate, and the greater the flow rate of the water flow in the water spraying pipe 13, the greater the wind force formed by the rotation of the fan 62.

[0076] Referring to Figure 2 , a sliding ring 63 is slidably arranged in the air duct 61, the sliding ring 63 is connected to the filtering floating plate 2, when the filtering floating plate 2 slides vertically, the sliding ring 63 slides vertically in the air duct 61, an elastic air-permeable membrane 64 is fixedly connected in the sliding ring 63, the elastic air-permeable membrane 64 is easily elastically deformed under force and is convenient for air flow to pass through, a strain gauge 65 is connected to the elastic air-permeable membrane 64, the strain gauge 65 can accurately detect the deformation of the elastic air-permeable membrane 64, the closer the elastic air-permeable membrane 64 is to the fan 62, the greater the wind force received by the elastic air-permeable membrane 64, and the greater the deformation of the elastic air-permeable membrane 64.

[0077] Referring to Figure 1 and Figure 5, the strain gauge 65 is electrically connected to a controller 66. The controller 66 is fixedly connected to the outer wall of the air duct 61. The controller 66 is electrically connected to a display screen 67, and the display screen 67 is used to be installed in the cab of the sprinkler truck for the driver to view. The strain gauge 65 is used to output the deformation signal of the elastic breathable film 64. The controller 66 responds to the deformation signal and is used to control the display screen 67 to display the spraying time of the water in the water storage tank 1. When the deformation signal is larger, the spraying time displayed on the display screen 67 is shorter.

[0078] The spraying time of the water in the water storage tank 1 mainly depends on the water level in the water storage tank 1 and the flow rate of the water flow in the water spraying pipe 13. When the flow rate is larger and the water level is lower, the spraying time is shorter. When the flow rate is smaller and the water level is higher, the spraying time is longer.

[0079] When spraying water, the water flow in the water spraying pipe 13 can drive the impeller 622 to rotate. The impeller 622 can drive the fan 62 to rotate. The fan 62 can drive the air to flow to form an air current blowing towards the elastic breathable film 64. The air current blows across the elastic breathable film 64 and causes the elastic breathable film 64 to deform. The magnitude of the wind force blown by the fan 62 can reflect the magnitude of the water flow rate.

[0080] The filtering floating plate 2 can drive the sliding ring 63 to slide to control the distance between the elastic breathable film 64 and the fan 62 based on the water level. The distance between the elastic breathable film 64 and the fan 62 can reflect the height of the water level.

[0081] The magnitude of the deformation of the elastic breathable film 64 mainly depends on the wind force and the distance. Thus, through the deformation condition of the elastic breathable film 64 blown by the fan 62, it is possible to estimate how long the water in the water storage tank 1 can still be sprayed at the current water level and flow rate. Then the strain gauge 65 detects the deformation of the elastic breathable film 64 and outputs a deformation signal. The controller 66 controls the display screen 67 to display the spraying time of the water in the water storage tank 1 according to the deformation signal. The display screen 67 shows the spraying time to the driver, enabling the driver to reasonably arrange the time for spraying operations and water replenishment operations.

[0082] Furthermore, referring to Figure 5 , an installation hole 11 is opened on the side wall of the water storage tank 1. The installation hole 11 penetrates through the wall thickness of the water storage tank 1. An installation plate 12 is fixedly sealed at the installation hole 11. The air duct 61 is fixedly connected to the installation plate 12. A sliding hole 611 is opened on one side of the air duct 61 close to the installation plate 12. The sliding hole 611 penetrates through the wall thickness of the air duct 61. A first magnetic block 68 is slidably arranged in the sliding hole 611. The first magnetic block 68 is fixedly connected to the sliding ring 63. A second magnetic block 69 is fixedly embedded on the filtering floating plate 2. The second magnetic block 69 is arranged opposite to the first magnetic block 68 with the installation plate 12 in between. The first magnetic block 68 and the second magnetic block 69 are magnetically attracted to each other.

[0083] The first magnetic block 68 and the second magnetic block 69 are magnetically connected with a separation by the mounting plate 12, so that the filter floating plate 2 and the sliding ring 63 are connected in a non-contact manner. When the filter floating plate 2 slides, the sliding ring 63 can slide synchronously by magnetic attraction, so that the position of the elastic breathable membrane 64 can be adjusted based on the water level.

[0084] Furthermore, referring to Figure 5 , there is a part of the mounting plate 12 exposed outside the air duct 61. The mounting plate 12 is made of acrylic material. The mounting plate 12 made of acrylic material has excellent transparency, enabling the driver to directly observe the water level height in the water storage tank 1 through the mounting plate 12, which is beneficial for the driver to intuitively know the water level situation when the water storage tank 1 is replenished with water.

[0085] The implementation principle of an all-electric sprinkler in an embodiment of the present application is as follows: During use, water is replenished into the water storage tank 1 from the water filling main pipe 41 and the water filling branch pipe 42. The water adheres to the side wall of the water storage tank 1 and flows onto the top surface of the filter floating plate 2. The water flow passes through the filter screen 3 along the top surface of the filter floating plate 2 and flows to the water inlet hole 21, and then flows into the space below the filter floating plate 2 from the water inlet hole 21. The filter screen 3 filters the water. The filter floating plate 2 floats upward during the continuous rise of the water level until the filter floating plate 2 floats to the top of the water storage tank 1 and the water level overflows the water inlet hole 21. The sinking sponge 522 absorbs water and pulls the closing plate 521 downward to close the water inlet hole 21, making the upper and lower spaces of the filter floating plate 2 independent. After the upper chamber of the filter floating plate 2 is filled with water, the two-way pump 53 is started. The two-way pump 53 first pumps water through the water suction pipe 55 to wash the filter screen 3, and then the two-way pump 53 pumps water through the flushing and discharging hole 512, so that the water and impurities are discharged from the water storage tank 1 through the sewage pipe 56, enabling the filter screen 3 to be cleaned, so as to continue filtering water next time, thereby facilitating the filtering of a large amount of water loaded into the sprinkler truck.

[0086] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. An all-electric sprinkler truck, characterized in that, Comprising: A water storage tank; A filtering floating plate, which is slidably arranged vertically in the water storage tank. The shape of the filtering floating plate is adapted to the shape of the cross-section of the water storage tank. The top surface of the filtering floating plate is concave. A through water inlet hole is provided at the central position of the filtering floating plate. The density of the filtering floating plate is less than that of water; A filter net, which is annular and connected to the top surface of the filtering floating plate. The top end of the filter net is lower than the edge position of the top surface of the filtering floating plate. The water inlet hole is located within the area surrounded by the filter net; A water filling assembly, including a main water filling pipe and branch water filling pipes. The main water filling pipe penetrates through the top end of the water storage tank and is used for filling water into the water storage tank. The branch water filling pipes are located within the water storage tank and are arranged close to the top end of the water storage tank. A plurality of branch water filling pipes are arranged around the main water filling pipe. One end of all the branch water filling pipes is connected to one end of the main water filling pipe located within the water storage tank, and the other end of the branch water filling pipe is arranged close to the side wall of the water storage tank; A sewage discharging assembly, including a telescopic rod, a closing part, a two-way pump, a reversing part, a water suction pipe and a sewage discharging pipe; Wherein, The telescopic rod is located within the water storage tank. The fixed end of the telescopic rod is connected to the top end of the water storage tank. The telescopic rod is arranged opposite to the water inlet hole. A spring is arranged within the rod chamber of the telescopic rod. The spring is used to drive the telescopic rod to contract; The closing part is connected to the movable end of the telescopic rod. When the filtering floating plate floats to the top end of the water storage tank and the water level within the water storage tank is between the lowest point of the top surface of the filtering floating plate and the top end of the filter net, the closing part can drive the telescopic rod to extend against the elastic force of the spring, and the closing part can close the water inlet hole; The interior of the movable end of the telescopic rod is hollow. The movable end of the telescopic rod is communicated with the rodless chamber of the telescopic rod. A flushing and discharging hole is provided on the movable end of the telescopic rod. The flushing and discharging hole is arranged close to the closing part. The movable end of the telescopic rod is rotatably connected to the fixed end of the telescopic rod. When water flows from the rodless chamber of the telescopic rod through the movable end of the telescopic rod to the flushing and discharging hole, the movable end of the telescopic rod can rotate forward. When water flows from the flushing and discharging hole through the movable end of the telescopic rod to the rodless chamber of the telescopic rod, the movable end of the telescopic rod can rotate reversely; The two-way pump is connected to the top end of the water storage tank. One port of the two-way pump is communicated with the rodless chamber of the telescopic rod. The other port of the two-way pump is connected to the reversing part. The reversing part is respectively connected to the water suction pipe and the sewage discharging pipe. The end of the water suction pipe away from the reversing part is located within the water storage tank. The end of the sewage discharging pipe away from the reversing part penetrates out of the water storage tank. The reversing part is connected to the movable end of the telescopic rod. The reversing part is used to regulate the connection between the two-way pump and the water suction pipe or regulate the connection between the two-way pump and the sewage discharging pipe; Under normal conditions, the reversing part regulates the connection between the two-way pump and the water suction pipe. When the two-way pump pumps water to make the movable end of the telescopic rod rotate forward, the reversing part maintains the connection between the two-way pump and the water suction pipe by means of the driving force formed by the rotation of the movable end of the telescopic rod. When the two-way pump pumps water in the reverse direction to make the movable end of the telescopic rod rotate reversely, the reversing part regulates the connection between the two-way pump and the sewage discharging pipe by means of the driving force formed by the rotation of the movable end of the telescopic rod.

2. The pure electric sprinkler according to claim 1, characterized in that, The closing part includes a closing plate and a sinking sponge. The closing plate is connected to the movable end of the telescopic rod. The sinking sponge is connected to the closing plate.

3. The pure electric sprinkler according to claim 2, characterized in that, The sunken sponge is located on the side of the closing plate close to the telescopic rod. A dirt blocking plate is connected to the side of the sunken sponge away from the closing plate. After the sunken sponge absorbs water and pulls the closing plate to close the water inlet hole, the dirt blocking plate closes the water inlet hole.

4. The pure electric sprinkler according to claim 3, characterized in that, The water inlet hole is in an inverted conical shape. The dirt blocking plate is made of ferromagnetic material. An extrusion magnetic ring is embedded at the top end of the hole wall of the water inlet hole. After the sunken sponge absorbs water and pulls the closing plate to close the water inlet hole, the dirt blocking plate is located at the extrusion magnetic ring and is magnetically attracted to the extrusion magnetic ring.

5. A pure electric sprinkler according to claim 4, characterized in that, A plurality of rotating fan blades are connected to the inner wall of the movable end of the telescopic rod. The plurality of rotating fan blades are arranged around the rotation axis of the movable end of the telescopic rod. When there is water flow in the movable end of the telescopic rod, the water flow drives the rotating fan blades to enable the movable end of the telescopic rod to rotate.

6. The pure electric sprinkler according to claim 1, characterized in that, The commutation part includes a commutation box, a commutation baffle and a torsion spring. The two-way pump is communicated with the side wall of the commutation box. The water suction pipe and the sewage discharge pipe are respectively located on both sides of the connection between the two-way pump and the commutation box. The water suction pipe and the sewage discharge pipe are both communicated with the side wall of the commutation box. The commutation baffle is located inside the commutation box. One end of the commutation baffle is connected with a commutation shaft. The commutation shaft is rotatably connected to the commutation box. The commutation shaft is directly opposite to the connection between the commutation box and the two-way pump. The other end of the commutation baffle is used for abutting against the inner wall of the commutation box; When the abutting position of the commutation baffle and the commutation box is between the two-way pump and the sewage discharge pipe, the commutation baffle makes the two-way pump communicate with the water suction pipe. When the abutting position of the commutation baffle and the commutation box is between the two-way pump and the water suction pipe, the commutation baffle makes the two-way pump communicate with the sewage discharge pipe. The torsion spring is arranged on the commutation shaft. The two ends of the torsion spring are respectively connected with the commutation shaft and the commutation box. The torsion spring is used to drive the end of the commutation baffle to abut between the two-way pump and the sewage discharge pipe.

7. The pure electric sprinkler according to claim 6, characterized in that, The commutation part further includes a commutation iron ring, a commutation magnetic ring and a belt drive. The commutation iron ring is embedded on the outer wall of the movable end of the telescopic rod. The commutation magnetic ring is rotatably connected to the fixed end of the telescopic rod and sleeved on the movable end of the telescopic rod. One end of the commutation shaft rotates out of the commutation box. The belt drive connects the commutation magnetic ring and the commutation shaft; When the closing part closes the water inlet hole, the commutation iron ring moves to the commutation magnetic ring and is magnetically attracted to the commutation magnetic ring. When the commutation iron ring rotates forward with the movable end of the telescopic rod, the commutation iron ring drives the commutation magnetic ring to make the abutting position of the commutation baffle and the commutation box be between the two-way pump and the sewage discharge pipe. When the commutation iron ring rotates reversely with the movable end of the telescopic rod, the commutation iron ring drives the commutation magnetic ring to make the abutting position of the commutation baffle and the commutation box be between the two-way pump and the water suction pipe.

8. A pure electric sprinkler according to claim 1, characterized in that, It further includes an estimation component. The estimation component includes an air duct. The air duct is connected to the water storage tank. A fan is arranged inside the air duct. The fan is arranged close to the bottom end of the air duct. The fan is connected with a rotating shaft. The rotating shaft rotatably penetrates through the water spraying pipe communicated with the bottom end of the water storage tank. A water spraying pump is arranged on the water spraying pipe. One end of the rotating shaft located inside the water spraying pipe is connected with an impeller. When the water spraying pump sucks the water in the water storage tank, the water flow in the water spraying pipe can drive the impeller to rotate; A sliding ring is slidably arranged inside the air duct. The sliding ring is connected to the filtering floating plate. When the filtering floating plate slides vertically, the sliding ring slides inside the air duct. An elastic breathable membrane is connected inside the sliding ring, and a strain gauge is connected to the elastic breathable membrane. The strain gauge is electrically connected to a controller, and the controller is electrically connected to a display screen. The display screen is used to be installed in the cab of the sprinkler truck. The strain gauge is used to output the deformation signal of the elastic breathable membrane. The controller responds to the deformation signal and is used to control the display screen to display the spraying time of the water in the water storage tank. When the deformation signal is larger, the spraying time displayed on the display screen is shorter.

9. A pure electric sprinkler according to claim 8, characterized in that, An installation hole is formed in the side wall of the water storage tank. An installation plate is hermetically arranged at the installation hole. The air duct is connected to the installation plate. A sliding hole is formed in one side of the air duct close to the installation plate. A first magnet is slidably arranged in the sliding hole. The first magnet is connected to the sliding ring. A second magnet is embedded in the filtering floating plate. The second magnet is arranged opposite to the first magnet with the installation plate in between. The first magnet and the second magnet are magnetically connected.

10. A pure electric sprinkler according to claim 9, characterized in that, There is a part of the installation plate that is exposed outside the air duct. The installation plate is made of acrylic material.

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