Pure electric watering cart

Abstract

The invention relates to a pure electric watering cart, and relates to the technical field of watering carts. The top surface of the filtering floating plate is concavely arranged, and a water inlet hole is formed in the center of the filtering floating plate; the filter screen is connected to the top surface of the filter floating plate; the water loading assembly comprises a water loading main pipe and a water loading branch pipe; the sewage discharging assembly comprises a telescopic rod, a sealing part, a two-way pump, a reversing part, a water pumping pipe and a sewage discharging pipe; wherein the filter screen can filter water with a larger effective filtering area, the water filtering amount is increased, the sealing part can seal the water inlet hole, so that the chambers on the upper side and the lower side of the filtering floating plate are independent, and the two-way pump can pump water firstly to wash the filter screen and then pump water reversely to discharge water and impurities. The watering cart has the effect that a large amount of water loaded into the watering cart can be conveniently filtered.

Description

Technical Field

[0001] The present 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 washing, lawn greening, green belt sprinkler irrigation and pesticide spraying. They are important equipment for road cleaning and landscaping.

[0003] A Chinese patent with publication number CN211558320U discloses a novel multifunctional greening spraying vehicle, which filters water in a water storage tank by arranging a filter cartridge at a water inlet pipe to prevent impurities in the water from clogging the spray head.

[0004] Although the filter cartridge in the above scheme can filter water, the small volume of the filter cartridge results in a low water filtering capacity. When filtering a large amount of water, 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, making it inconvenient to filter a large amount of water loaded into the sprinkler truck. Summary of the invention

[0005] In order to facilitate filtering of a large amount of water loaded into a sprinkler truck, the present application provides a pure electric sprinkler truck.

[0006] The present application provides a pure electric sprinkler truck, which adopts the following technical solution: A pure electric sprinkler truck, comprising: Water storage tanks; The filter floating plate is slidably arranged in the water tank in the vertical direction. The shape of the filter floating plate is adapted to the shape of the cross section of the water tank. The top surface of the filter floating plate is concave. A through water inlet hole is opened at the center of the filter floating plate. The density of the filter floating plate is less than the density of water. The filter screen is annular and connected to the top surface of the filter floating plate, the top of the filter screen is lower than the edge of the top surface of the filter floating plate, and the water inlet is located in the area surrounded by the filter screen; A water filling assembly includes a water filling main pipe and a water filling branch pipe. The water filling main pipe is passed through the top of the water storage tank and is used to fill water into the water storage tank. The water filling branch pipe is located in the water storage tank and is arranged close to the top of the water storage tank. A plurality of water filling branches are arranged around the water filling main pipe. One end of all the water filling branches is connected to one end of the water filling main pipe located in the water storage tank. The other end of the water filling branch pipe is arranged close to the side wall of the water storage tank. A sewage discharge assembly, including a telescopic rod, a closing portion, a two-way pump, a reversing portion, a water suction pipe and a sewage discharge pipe; in, The telescopic rod is located in the water tank, the fixed end of the telescopic rod is connected to the top of the water tank, the telescopic rod is arranged opposite to the water inlet hole, and a spring is arranged in the rod cavity of the telescopic rod, and the spring is used to drive the telescopic rod to retract; The closing part is connected to the movable end of the telescopic rod. When the filter floating plate floats to the top of the water tank and the water level in the water tank is between the lowest point of the top surface of the filter floating plate and the top of the filter screen, 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. The movable end of the telescopic rod is hollow inside, the movable end of the telescopic rod is connected with the rodless cavity of the telescopic rod, and a flushing hole is opened on the movable end of the telescopic rod, the flushing hole is opened near the closed part, and the movable end of the telescopic rod is rotatably connected with the fixed end of the telescopic rod. When water flows from the rodless cavity of the telescopic rod through the movable end of the telescopic rod to the flushing hole, the movable end of the telescopic rod can rotate forward, and when water flows from the flushing 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 reverse. The two-way pump is connected to the top of the water tank, one of the ports of the two-way pump is connected to the rodless cavity of the telescopic rod, and the other port of the two-way pump is connected to the reversing part, which is respectively connected to the water pumping pipe and the sewage pipe. The end of the water pumping pipe away from the reversing part is located in the water tank, and the end of the sewage pipe away from the reversing part is passed out of the water tank. The reversing part is connected to the movable end of the telescopic rod, and the reversing part is used to regulate the two-way pump to be connected to the water pumping pipe or to regulate the two-way pump to be connected to the sewage pipe. Under normal circumstances, the reversing part regulates the connection between the two-way pump and the water pumping pipe. When the two-way pump pumps water to cause the movable end of the telescopic rod to rotate forward, the reversing part uses the driving force generated by the rotation of the movable end of the telescopic rod to maintain the connection between the two-way pump and the water pumping pipe. When the two-way pump pumps water to cause the movable end of the telescopic rod to reverse, the reversing part uses the driving force generated by the rotation of the movable end of the telescopic rod to regulate the connection between the two-way pump and the sewage pipe.

[0007] Optionally, the closing portion 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.

[0008] Optionally, the sinking sponge is located on a side of the closing plate close to the telescopic rod, and a dirt blocking plate is connected to a side of the sinking sponge away from the closing plate. When 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.

[0009] Optionally, the water inlet hole is in an inverted cone shape, the dirt baffle is made of ferromagnetic material, and an extrusion magnetic ring is embedded in the top of the water inlet hole wall. When the sinking sponge absorbs water and pulls the closing plate to close the water inlet hole, the dirt baffle is located at the extrusion magnetic ring and is magnetically connected to the extrusion magnetic ring.

[0010] Optionally, a plurality of rotating blades are connected to the inner wall of the movable end of the telescopic rod, and the plurality of rotating blades are arranged around the rotation axis of the movable end of the telescopic rod. When water flows in the movable end of the telescopic rod, the water flow drives the rotating blades to rotate the movable end of the telescopic rod.

[0011] Optionally, the reversing part includes a reversing box, a reversing baffle and a torsion spring, the two-way pump is connected to the side wall of the reversing 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 reversing box, the water suction pipe and the sewage discharge pipe are both connected to the side wall of the reversing box, the reversing baffle is located in the reversing box, one end of the reversing baffle is connected to a reversing shaft, the reversing shaft is rotatably connected to the reversing box, the reversing shaft is directly opposite to the connection between the reversing box and the two-way pump, and the other end of the reversing baffle is used to abut against the inner wall of the reversing box; When the abutment between the reversing baffle and the reversing box is located between the two-way pump and the sewage pipe, the reversing baffle connects the two-way pump with the water suction pipe. When the abutment between the reversing baffle and the reversing box is located between the two-way pump and the water suction pipe, the reversing baffle connects the two-way pump with the sewage pipe. The torsion spring is arranged on the reversing shaft. The two ends of the torsion spring are respectively connected to the reversing shaft and the reversing box. The torsion spring is used to drive the end of the reversing baffle to abut between the two-way pump and the sewage pipe.

[0012] Optionally, the reversing part further includes a reversing iron ring, a reversing magnetic ring and a belt transmission, the reversing iron ring is embedded in the outer wall of the movable end of the telescopic rod, the reversing 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 reversing shaft rotates to pass through the reversing box, and the belt transmission connects the reversing magnetic ring and the reversing shaft; When the closing part closes the water inlet hole, the reversing iron ring moves to the reversing magnetic ring and is magnetically connected to the reversing magnetic ring. When the reversing iron ring rotates forward with the movable end of the telescopic rod, the reversing iron ring drives the reversing magnetic ring so that the contact point between the reversing baffle and the reversing box is located between the two-way pump and the sewage pipe. When the reversing iron ring reverses with the movable end of the telescopic rod, the reversing iron ring drives the reversing magnetic ring so that the contact point between the reversing baffle and the reversing box is located between the two-way pump and the water suction pipe.

[0013] Optionally, it also includes an estimation component, which includes an air duct, which is connected to the water storage tank, a fan is arranged in the air duct, the fan is arranged near the bottom end of the air duct, the fan is connected to a rotating shaft, the rotating shaft is rotatably passed through a water spray pipe connected to the bottom end of the water storage tank, a water spray pump is arranged on the water spray pipe, one end of the rotating shaft located in the water spray pipe is connected to an impeller, and when the water spray pump sucks water in the water storage tank, the water flow in the water spray pipe can drive the impeller to rotate; A sliding ring is provided for sliding in the air duct, and the sliding ring is connected to the filter float. When the filter float slides vertically, the sliding ring slides in the air duct. An elastic breathable membrane is connected in 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 a 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 tank. When the deformation signal is larger, the spraying time displayed on the display screen is shorter.

[0014] Optionally, a mounting hole is provided on the side wall of the water tank, a mounting plate is sealed at the mounting hole, the air duct is connected to the mounting plate, a sliding hole is provided on the side of the air duct close to the mounting plate, a first magnetic block is slidingly provided in the sliding hole, the first magnetic block is connected to the sliding ring, a second magnetic block is embedded on the filter floating plate, the second magnetic block is arranged opposite to the first magnetic block with the mounting plate separated, and the first magnetic block is magnetically connected to the second magnetic block.

[0015] Optionally, the mounting plate has a portion exposed to the air duct, and the mounting plate is made of acrylic material.

[0016] In summary, the present application includes at least one of the following beneficial technical effects: 1. The present application discloses a pure electric water sprinkler, comprising a water storage tank, a filter floating plate, a filter screen, a water filling assembly and a sewage discharge assembly, wherein the water filling main pipe and the water filling branch pipe allow water to be added to the water storage tank by adhering to the wall, and the water flows from the edge of the filter floating plate to the water inlet hole, so that the filter screen can filter water with a larger effective filtering area, thereby increasing the amount of filtered water; the sinking sponge can close the water inlet hole after absorbing water, so that the chambers on the upper and lower sides of the filter floating plate are independent, the two-way pump draws water through the water pumping pipe to flush the filter screen, so that the filter screen can be cleaned, and the two-way pump reversely draws water through the flushing and drainage 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, thereby making it easy to filter a large amount of water added to the water storage tank; 2. The present application discloses a pure electric sprinkler truck further comprising a timing estimation component, wherein the water flow in the water spray pipe can drive the fan to rotate, so that the fan can form wind blowing on the elastic breathable membrane, the filter float can drive the elastic breathable membrane to slide through the first magnetic block and the second magnetic block, so that the distance between the elastic breathable membrane and the fan can be adapted to the water level, the deformation amount of the elastic breathable membrane depends on the distance between the elastic breathable membrane and the fan and the size of the fan wind force, the strain gauge outputs the deformation signal of the elastic breathable membrane, and the controller displays the deformation signal to the driver through the display screen, so that the driver can reasonably arrange the time for spraying and water replenishing operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application; Figure 2 It is a schematic diagram of the structure in which the filter floating plate floats at the highest position; Figure 3 is a cross-sectional view of the blowdown assembly; Figure 4 It is a schematic diagram of the structure of the sewage discharge assembly; Figure 5 yes Figure 2 Magnified view at A in the middle.

[0018] Description of reference numerals: 1. Water storage tank; 11. Mounting hole; 12. Mounting plate; 13. Water spray pipe; 14. Water spray pump; 2. Filter float; 21. Water inlet hole; 22. Extrusion magnetic ring; 3. Filter screen; 4. Water filling assembly; 41. Water filling main pipe; 42. Water filling branch; 5. Sewage discharge assembly; 51. Telescopic rod; 511. Spring; 512. Flushing hole; 513. Rotating fan blade; 52. Closing part; 521. Closing plate; 522. Sinking sponge; 523. Sewage baffle; 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 pipe; 6, timing assembly; 61, air duct; 611, sliding hole; 62, fan; 621, rotating shaft; 622, impeller; 63, sliding ring; 64, elastic breathable membrane; 65, strain gauge; 66, controller; 67, display screen; 68, first magnetic block; 69, second magnetic block. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-5 This application is described in further detail.

[0020] The present application embodiment discloses a pure electric sprinkler truck. Figure 1 and Figure 2 A pure electric sprinkler truck includes a water storage tank 1, a filter float 2, a filter screen 3, a water filling component 4 and a sewage discharge component 5.

[0021] Reference Figure 2 and Figure 3 The water tank 1 is in a rectangular box shape and is arranged horizontally. The filter float 2 is slidably arranged in the water tank 1 along the vertical direction. The shape of the filter float 2 is adapted to the shape of the cross section of the water tank 1. The top surface of the filter float 2 is concavely arranged. A through water inlet hole 21 is opened at the center of the filter float 2. The density of the filter float 2 is less than the density of water. The filter float 2 can float when water is filled in the water tank 1.

[0022] The filter screen 3 is annular and fixedly connected to the top surface of the filter float 2. The top of the filter screen 3 is lower than the edge of the top surface of the filter float 2. The water inlet hole 21 is located in the area surrounded by the filter screen 3. Water is added into the water tank 1 against the side wall of the water tank 1. The water flows along the top surface of the filter float 2. The filter screen 3 filters the water. Since the water flows from the edge of the filter float 2 to the center of the filter float 2, the effective filtering area of ​​the filter screen 3 can be larger than the effective filtering area of ​​the filter cartridge. When filtering a large amount of water, the filter screen 3 does not need to be frequently replaced or cleaned.

[0023] Reference Figure 2 In order to improve the filtering effect, three filter screens 3 are set layer by layer, and the filtering accuracy of the three-layer filter screen 3 is gradually improved from the outer layer to the inner layer.

[0024] The water filling assembly 4 includes a water filling main pipe 41 and a water filling branch 42. The water filling main pipe 41 is fixedly penetrated on the top of the water storage tank 1 and is used to fill water into the water storage tank 1. The water filling branch 42 is located in the water storage tank 1 and is arranged close to the top of the water storage tank 1. The water filling branch 42 is fixedly connected to the water storage tank 1. A plurality of water filling branches 42 are arranged around the water filling main pipe 41. One ends of all the water filling branches 42 are connected to one end of the water filling main pipe 41 located in the water storage tank 1, and the other end of the water filling branch 42 is arranged close to the side wall of the water storage tank 1.

[0025] Reference Figure 4 The sewage discharge assembly 5 includes a telescopic rod 51, a closing portion 52, a two-way pump 53, a reversing portion 54, a water suction pipe 55 and a sewage discharge pipe 56.

[0026] Reference Figure 2 and Figure 3 The telescopic rod 51 is located in the water tank 1, the fixed end of the telescopic rod 51 is fixedly connected to the top of the water tank 1, and 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, and the spring 511 is used to drive the telescopic rod 51 to retract.

[0027] The closing portion 52 is connected to the movable end of the telescopic rod 51. When the filter float 2 floats to the top of the water tank 1 and the water level in the water tank 1 is between the lowest point on the top surface of the filter float 2 and the top of the filter net 3, the closing portion 52 can overcome the elastic force of the spring 511 to drive the telescopic rod 51 to extend, and the closing portion 52 can close the water inlet hole 21. At this time, the space on the upper and lower sides of the filter float 2 forms two independent chambers.

[0028] Reference Figure 3The movable end of the telescopic rod 51 is hollow inside, the movable end of the telescopic rod 51 is connected to the rodless cavity of the telescopic rod 51, and a plurality of flushing and drainage holes 512 are opened on the movable end of the telescopic rod 51, and the plurality of flushing and drainage holes 512 are arranged around the telescopic direction of the telescopic rod 51, and the flushing and drainage holes 512 are opened near the closing portion 52. The movable end of the telescopic rod 51 is rotatably connected to the fixed end of the telescopic rod 51. When water flows from the rodless cavity of the telescopic rod 51 through the movable end of the telescopic rod 51 to the flushing and drainage holes 512, the movable end of the telescopic rod 51 can rotate forward. When water flows from the flushing and drainage 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 reverse. By rotating the movable end of the telescopic rod 51, the direction of each flushing and drainage hole 512 can be adjusted by a full circle.

[0029] Reference Figure 2 and Figure 4 The two-way pump 53 is fixedly connected to the top of the water tank 1. One of the ports of the two-way pump 53 is connected to the rodless cavity of the telescopic rod 51. 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 pipe 56. The end of the water suction pipe 55 away from the reversing part 54 is located in the water tank 1. The end of the sewage pipe 56 away from the reversing part 54 passes through the outside of the water tank 1. The reversing part 54 is connected to the movable end of the telescopic rod 51. The reversing part 54 It is used to regulate the connection between the two-way pump 53 and the water suction pipe 55 or the two-way pump 53 and the sewage pipe 56. When the two-way pump 53 is connected to the water suction pipe 55, the two-way pump 53 can extract water from the chamber above the filter float 2 so that the water flow can flow out from the flushing hole 512, so that the filter screen 3 can be backwashed and cleaned under the action of the water flow. When the two-way pump 53 is connected to the sewage pipe 56, the two-way pump 53 can extract water after flushing the filter screen 3, and discharge the water and impurities out of the water storage tank 1.

[0030] Reference Figure 3 and Figure 4 Under normal conditions, the reversing portion 54 regulates the two-way pump 53 to be connected with the water pumping pipe 55. When the two-way pump 53 pumps water to cause the movable end of the telescopic rod 51 to rotate forward, the reversing portion 54 maintains the two-way pump 53 in communication with the water pumping pipe 55 with the help of the driving force generated by the rotation of the movable end of the telescopic rod 51. When the two-way pump 53 pumps water to cause the movable end of the telescopic rod 51 to reverse, the reversing portion 54 regulates the two-way pump 53 to be connected with the sewage pipe 56 with the help of the driving force generated 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 reversing portion 54 will first regulate the two-way pump 53 to be connected with the water pumping pipe 55, so that the water flow can first backwash the filter screen 3.

[0031] When in use, water is passed into the water filling main pipe 41, and the water flows along the water filling main pipe 41 and the water filling branch 42 to the side wall of the water tank 1. The water flows from the side wall of the water tank 1 to the top surface of the filter float 2. Under the guidance of the top surface of the filter float 2, the water first flows through the filter screen 3, and then flows into the space below the filter float 2 from the water inlet hole 21 to realize the water replenishment operation of the water tank 1. Since the filter screen 3 has a large effective filtering area, the water filtering amount of the filter screen 3 is increased. During the one-time water replenishment process of the water tank 1, there is no need to frequently replace or clean the filter screen 3.

[0032] As the water level in the water tank 1 continues to rise, the filter float 2 will gradually slide to the top of the water tank 1, and then the water flowing into the water tank 1 will be stored in the space above the filter float 2. As the water level rises, the closing portion 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 float 2.

[0033] Under the action of the reversing part 54, the two-way pump 53 can first be connected with the water suction pipe 55, and the two-way pump 53 can suck the water in the chamber above the filter float 2, so that the water flows into the movable end of the telescopic rod 51 through the rodless cavity of the telescopic rod 51, and then flows out from the flushing 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 flowing out of the flushing hole 512 can fully flush the filter net 3. On the other hand, the driving force generated 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, so that the flushing process of the filter net 3 is stable and reliable.

[0034] After the filter 3 is rinsed and cleaned, the two-way pump 53 pumps water in the reverse direction, so that water flows into the movable end of the telescopic rod 51 and the rodless cavity of the telescopic rod 51 through the flushing hole 512, and the water flow drives the movable end of the telescopic rod 51 to reverse. The reversing part 54 uses the driving force formed by the reversal of the movable end of the telescopic rod 51 to regulate the two-way pump 53 to be connected with the sewage pipe 56, so that the water in the rodless cavity of the telescopic rod 51 can be discharged from the water storage tank 1 from the sewage pipe 56.

[0035] Water is filtered through the filter screen 3 with a large effective filtering area, and the filter screen 3 is then rinsed with water in the chamber above the filter float 2, and the rinsed water is then discharged from the water tank 1, so that the water replenished in the water storage chamber can be filtered in large quantities, and the filter screen 3 can be cleaned after the water replenishment, which reduces the manual labor intensity in the water replenishment operation of the water tank 1 and reduces the manual operation process, thereby facilitating the filtering of a large amount of water loaded into the sprinkler truck.

[0036] Specifically, refer to Figure 3The closing portion 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 on the top surface of the filter floating plate 2 and the top of the filter net 3, the sinking sponge 522 can absorb water to increase its own weight. The weighted sinking sponge 522 can drive the closing plate 521 to pull the telescopic rod 51 to overcome the elastic force of the spring 511 and extend, so that the closing plate 521 can automatically and timely close the water inlet hole 21 using the water replenished in the water storage tank 1.

[0037] Further, refer to Figure 3 The sinking sponge 522 is located on the side of the closing plate 521 close to the telescopic rod 51, and the side of the sinking sponge 522 away from the closing plate 521 is fixedly connected with a dirt blocking plate 523. When the sinking sponge 522 absorbs water and pulls the closing plate 521 to close the water inlet hole 21, the dirt blocking plate 523 blocks the water inlet hole 21. The dirt blocking plate 523 can prevent the water in the chamber above the filter floating plate 2 after flushing the filter screen 3 from contacting the sinking sponge 522, so that the sinking sponge 522 is not easily adsorbed by impurities.

[0038] Furthermore, refer to Figure 3 The water inlet hole 21 is in an inverted cone shape, and the dirt baffle 523 is made of ferromagnetic material. An extrusion magnetic ring 22 is fixedly embedded at the top of the hole wall of the water inlet hole 21. When the sinking sponge 522 absorbs water and pulls the closing plate 521 to close the water inlet hole 21, the dirt baffle 523 is located at the extrusion magnetic ring 22 and is magnetically connected to the extrusion magnetic ring 22.

[0039] When the water level in the water tank 1 drops due to use, the filter float 2 slides down with the water level, and since the extrusion magnetic ring 22 is magnetically connected to the dirt baffle plate 523, the extrusion magnetic ring 22 can drive the dirt baffle plate 523 to move downward as it moves downward with the filter float 2, and since the water inlet hole 21 is an inverted cone, after the filter float 2 moves downward, the closing plate 521 can open the water inlet hole 21, so that the dirt baffle plate 523 can 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 baffle plate 523 can automatically reset after the extrusion magnetic ring 22 is separated from the dirt baffle plate 523.

[0040] Reference 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 blades 513 are fixedly connected to the inner wall of the movable end of the telescopic rod 51, and the plurality of rotating blades 513 are arranged around the rotation axis of the movable end of the telescopic rod 51. When water flows in the movable end of the telescopic rod 51, the water flow drives the rotating blades 513 to rotate the movable end of the telescopic rod 51.

[0041] When water flows in the movable end of the telescopic rod 51, the water flow can impact on each rotating fan blade 513. The impact of the water flow 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; because the extrusion magnetic ring 22 can fix the position of the dirt baffle 523 by magnetic attraction, the impact of the water flow on the rotating fan blade 513 is not easy to cause the movable end of the telescopic rod 51 to shrink and shake.

[0042] Specifically, refer to Figure 4 The reversing portion 54 includes a reversing box 541 , a reversing baffle 542 and a torsion spring 543 .

[0043] The two-way pump 53 is connected to the side wall of the reversing box 541, and the water suction pipe 55 and the sewage discharge pipe 56 are respectively located on both sides of the connection point between the two-way pump 53 and the reversing box 541. The water suction pipe 55 and the sewage discharge pipe 56 are both connected to the side wall of the reversing box 541. The reversing baffle 542 is located in the reversing box 541, and one end of the reversing baffle 542 is fixedly connected to a reversing shaft 5421, which is rotatably connected to the reversing box 541. The reversing shaft 5421 is directly opposite to the connection point between the reversing box 541 and the two-way pump 53, and the other end of the reversing baffle 542 is used to abut against the inner wall of the reversing box 541.

[0044] When the contact point between the reversing baffle 542 and the reversing box 541 is located between the two-way pump 53 and the sewage pipe 56, the reversing baffle 542 allows the two-way pump 53 to communicate with the water pumping pipe 55; when the contact point between the reversing baffle 542 and the reversing box 541 is located between the two-way pump 53 and the water pumping pipe 55, the reversing baffle 542 allows the two-way pump 53 to communicate with the sewage pipe 56. The top end of the reversing shaft 5421 rotates to pass through the reversing box 541, and the torsion spring 543 is arranged on the top end of the reversing shaft 5421. The two ends of the torsion spring 543 are respectively fixedly connected to the reversing shaft 5421 and the reversing box 541. The torsion spring 543 is used to drive the end of the reversing baffle 542 to abut between the two-way pump 53 and the sewage pipe 56.

[0045] The elastic force of the torsion spring 543 can drive the end of the reversing baffle 542 to abut between the two-way pump 53 and the sewage pipe 56. The reversing baffle 542 closes the sewage pipe 56, so that the two-way pump 53 and the sewage 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 chamber above the filter float 2 to flush the filter screen 3.

[0046] Further, refer to Figure 3 The reversing part 54 also includes a reversing iron ring 544 , a reversing magnetic ring 545 and a belt drive 546 .

[0047] The reversing iron ring 544 is fixedly embedded on the outer wall of the movable end of the telescopic rod 51, the reversing magnetic ring 545 is rotatably connected to the fixed end of the telescopic rod 51, and is sleeved on the movable end of the telescopic rod 51, one end of the reversing shaft 5421 rotates to pass through the reversing box 541, and the belt transmission 546 connects the reversing magnetic ring 545 and the reversing shaft 5421.

[0048] When the closing portion 52 closes the water inlet 21, the reversing iron ring 544 moves to the reversing magnetic ring 545 and is magnetically connected to the reversing magnetic ring 545, so that the movable end of the telescopic rod 51 can drive the reversing magnetic ring 545 to rotate in a non-contact manner; when the reversing iron ring 544 rotates forward with the movable end of the telescopic rod 51, the reversing iron ring 544 drives the reversing magnetic ring 545 so that the abutment between the reversing baffle 542 and the reversing box 541 is located between the two-way pump 53 and the sewage pipe 56; when the reversing iron ring 544 reverses with the movable end of the telescopic rod 51, the reversing iron ring 544 drives the reversing magnetic ring 545 so that the abutment between the reversing baffle 542 and the reversing box 541 is located between the two-way pump 53 and the water suction pipe 55.

[0049] In particular, since the movable end of the telescopic rod 51 and the reversing magnetic ring 545 are driven in a non-contact manner, after the end of the reversing baffle 542 abuts against the inner wall of the reversing box 541, the movable end of the telescopic rod 51 can continue to rotate, while the reversing magnetic ring 545 can remain stationary under the action of the magnetic attraction force, that is, the movable end of the telescopic rod 51 can keep the adjusted position of the reversing baffle 542 stable after driving the reversing baffle 542 to adjust its position.

[0050] Since the abutment between the reversing baffle 542 and the reversing 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 flush the filter screen 3, the movable end of the telescopic rod 51 can rotate forward, and the movable end of the telescopic rod 51 drives the reversing iron ring 544 to rotate. The reversing iron ring 544 drives the reversing magnetic ring 545 to have a rotation tendency, and the rotation tendency of the reversing magnetic ring 545 can be transmitted to the reversing shaft 5421 through the belt drive 546, thereby making the abutment state between the reversing baffle 542 and the reversing box 541 stable and reliable.

[0051] After flushing the filter 3, the two-way pump 53 pumps water in the reverse direction, so that the water flows from the flushing and discharge hole 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, and 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 in the opposite direction, so that the end of the reversing baffle 542 can abut between the two-way pump 53 and the water pumping pipe 55, so that the two-way pump 53 can be connected with the sewage pipe 56, so that the water and impurities in the rodless cavity of the telescopic rod 51 can be discharged from the sewage pipe 56 to the water storage tank 1, thereby automatically realizing the switching between flushing and sewage discharge by regulating the pumping direction of the two-way pump 53.

[0052] Reference Figure 1 In order to estimate the usage time of the water in the water tank 1 so that the driver can reasonably arrange the time for spraying and water replenishing operations, the pure electric sprinkler truck of the present application also includes a time estimation component 6.

[0053] Reference Figure 1 and Figure 2 The estimated component 6 includes a vertically arranged air duct 61, which is connected to the water tank 1. A fan 62 is arranged in the air duct 61, and 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 and passes through a water spray pipe 13 connected to the bottom end of the water tank 1. A water spray pump 14 is arranged on the water spray pipe 13. The water spray pump 14 is used to suck water in the water tank 1 for spraying. One end of the rotating shaft 621 located in the water spray pipe 13 is fixedly connected with an impeller 622. The water flow in the water spray pipe 13 can impact on some blades of the impeller 622. When the water spray pump 14 sucks water in the water tank 1, the water flow in the water spray pipe 13 can drive the impeller 622 to rotate, and the greater the flow rate of the water flow in the water spray pipe 13, the greater the wind force generated by the rotation of the fan 62.

[0054] Reference Figure 2 A sliding ring 63 is provided for sliding in the air duct 61, and the sliding ring 63 is connected to the filter floating plate 2. When the filter floating plate 2 slides vertically, the sliding ring 63 slides vertically in the air duct 61. An elastic breathable membrane 64 is fixedly connected in the sliding ring 63. The elastic breathable membrane 64 is easy to elastically deform under force and is convenient for airflow to pass through. A strain gauge 65 is connected to the elastic breathable membrane 64. The strain gauge 65 can accurately detect the deformation of the elastic breathable membrane 64. The closer the elastic breathable membrane 64 is to the fan 62, the greater the wind force on the elastic breathable membrane 64 is, and the greater the deformation of the elastic breathable membrane 64 is.

[0055] Reference Figure 1 and Figure 5 The strain gauge 65 is electrically connected to a controller 66, which is fixedly connected to the outer wall of the air duct 61. The controller 66 is electrically connected to a display screen 67, which is installed in the cab of the sprinkler truck for the driver to watch. The strain gauge 65 is used to output a deformation signal of the elastic breathable membrane 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 tank 1. When the deformation signal is larger, the spraying time displayed on the display screen 67 is shorter.

[0056] The spraying time of the water in the water tank 1 mainly depends on the water level in the water tank 1 and the flow rate of the water flow in the water spray pipe 13. When the flow rate is greater 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.

[0057] When spraying water, the water flow in the water spray pipe 13 can drive the impeller 622 to rotate, the impeller 622 can drive the fan 62 to rotate, and the fan 62 can drive the air flow to form an air flow blowing toward the elastic breathable membrane 64. The air flow blows through the elastic breathable membrane 64 and causes the elastic breathable membrane 64 to deform. The size of the wind force blown by the fan 62 can reflect the size of the water flow rate.

[0058] The filter floating plate 2 can drive the sliding ring 63 to slide, so as to control the distance between the elastic breathable membrane 64 and the fan 62 based on the water level. The distance between the elastic breathable membrane 64 and the fan 62 can reflect the height of the water level.

[0059] The deformation of the elastic breathable membrane 64 mainly depends on the wind force and distance. Therefore, by blowing the deformation of the elastic breathable membrane 64 by the fan 62, it is possible to estimate how long the water in the water tank 1 can be sprayed at the current water level and flow rate. Then the strain gauge 65 detects the deformation of the elastic breathable membrane 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 tank 1 according to the deformation signal. The display screen 67 displays the spraying time to the driver, so that the driver can reasonably arrange the time for spraying and water replenishing operations.

[0060] Further, refer to Figure 5 A mounting hole 11 is provided on the side wall of the water tank 1, and the mounting hole 11 penetrates the wall thickness of the water tank 1. A mounting plate 12 is sealed and fixed at the mounting hole 11. The air duct 61 is fixedly connected to the mounting plate 12. A sliding hole 611 is provided on the side of the air duct 61 close to the mounting plate 12, and the sliding hole 611 penetrates the wall thickness of the air duct 61. A first magnetic block 68 is slidably arranged in the sliding hole 611, and the first magnetic block 68 is fixedly connected to the sliding ring 63. A second magnetic block 69 is fixedly embedded on the filter floating plate 2, and the second magnetic block 69 is arranged opposite to the first magnetic block 68 with the mounting plate 12 separated therefrom, and the first magnetic block 68 is magnetically connected to the second magnetic block 69.

[0061] The first magnetic block 68 and the second magnetic block 69 are magnetically connected across the mounting plate 12, so that the filter float 2 and the sliding ring 63 are non-contactly connected. When the filter float 2 slides, the sliding ring 63 can slide synchronously by relying on the magnetic attraction force, so that the position of the elastic breathable membrane 64 can be adjusted based on the water level.

[0062] Furthermore, refer to Figure 5 There is a portion of the mounting plate 12 exposed to the air duct 61, and the mounting plate 12 is made of acrylic material. The mounting plate 12 made of acrylic material has excellent transparency, so that the driver can directly observe the water level in the water tank 1 through the mounting plate 12, which is helpful for the driver to intuitively know the water level situation when the water tank 1 is replenished.

[0063] The implementation principle of a pure electric sprinkler truck in the embodiment of the present application is as follows: when in use, water is added into the water storage tank 1 from the water main pipe 41 and the water branch pipe 42, and the water flows into the top surface of the filter float 2 along the side wall of the water storage tank 1, and the water flows into the water inlet hole 21 through the filter screen 3 along the top surface of the filter float 2, and flows into the space below the filter float 2 from the water inlet hole 21, the filter screen 3 filters the water, and the filter float 2 floats up in the process of the water level rising continuously, until the filter float 2 floats to the top of the water storage tank 1, and the water level overflows the water inlet hole 2 1. After the sinking sponge 522 absorbs water, it pulls the closing plate 521 downward to close the water inlet hole 21, so that the upper and lower spaces of the filter float 2 are independent. After the chamber above the filter float 2 is filled with water, the two-way pump 53 is started. The two-way pump 53 first pumps water through the pumping pipe 55 to flush the filter net 3, and then the two-way pump 53 pumps water through the flushing hole 512 to discharge water and impurities from the sewage pipe 56 to the water storage tank 1, so that the filter net 3 can be cleaned so that it can continue to filter water next time, thereby facilitating the filtering of a large amount of water loaded into the sprinkler truck.

[0064] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A pure electric sprinkler truck, characterized in that: include: Water storage tank (1); A filter floating plate (2) is slidably arranged in a vertical direction in the water storage tank (1); the shape of the filter floating plate (2) is adapted to the shape of the cross section of the water storage tank (1); the top surface of the filter floating plate (2) is concavely arranged; a through water inlet hole (21) is provided at the center of the filter floating plate (2); and the density of the filter floating plate (2) is less than the density of water; The filter screen (3) is annular and connected to the top surface of the filter floating plate (2). The top of the filter screen (3) is lower than the edge of the top surface of the filter floating plate (2). The water inlet hole (21) is located in the area surrounded by the filter screen (3). A water filling assembly (4) comprises a water filling main pipe (41) and a water filling branch (42), wherein the water filling main pipe (41) is arranged on the top of the water storage tank (1) and is used to fill water into the water storage tank (1), and the water filling branch (42) is located in the water storage tank (1) and is arranged close to the top of the water storage tank (1), and a plurality of water filling branches (42) are arranged around the water filling main pipe (41), one end of all the water filling branches (42) is connected to one end of the water filling main pipe (41) located in the water storage tank (1), and the other end of the water filling branch (42) is arranged close to the side wall of the water storage tank (1); A sewage discharge assembly (5), comprising a telescopic rod (51), a sealing portion (52), a two-way pump (53), a reversing portion (54), a water pumping pipe (55) and a sewage discharge pipe (56); in, The telescopic rod (51) is located in the water storage tank (1), the fixed end of the telescopic rod (51) is connected to the top of the water storage tank (1), the telescopic rod (51) is arranged opposite to the water inlet hole (21), and a spring (511) is arranged in the rod cavity of the telescopic rod (51), and the spring (511) is used to drive the telescopic rod (51) to retract; The closing portion (52) is connected to the movable end of the telescopic rod (51), and when the filter 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 filter floating plate (2) and the top of the filter screen (3), the closing portion (52) can overcome the elastic force of the spring (511) to drive the telescopic rod (51) to extend, and the closing portion (52) can close the water inlet hole (21); The movable end of the telescopic rod (51) is hollow inside, the movable end of the telescopic rod (51) is communicated with the rodless cavity of the telescopic rod (51), and a flushing hole (512) is provided on the movable end of the telescopic rod (51), the flushing hole (512) is provided near the closed portion (52), the movable end of the telescopic rod (51) is rotatably connected with the fixed end of the telescopic rod (51), when water flows from the rodless cavity of the telescopic rod (51) through the movable end of the telescopic rod (51) to the flushing hole (512), the movable end of the telescopic rod (51) can rotate forward, and when water flows from the flushing hole (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; A two-way pump (53) is connected to the top of the water storage tank (1), one of the ports of the two-way pump (53) is connected to the rodless cavity of the telescopic rod (51), the other port of the two-way pump (53) is connected to the reversing part (54), the reversing part (54) is respectively connected to a water pumping pipe (55) and a sewage discharge pipe (56), one end of the water pumping pipe (55) away from the reversing part (54) is located inside the water storage tank (1), and one end of the sewage discharge pipe (56) away from the reversing part (54) is passed out of the water storage tank (1), the reversing part (54) is connected to the movable end of the telescopic rod (51), and the reversing part (54) is used to regulate the two-way pump (53) to be connected to the water pumping pipe (55) or to regulate the two-way pump (53) to be connected to the sewage discharge pipe (56); Under normal conditions, the reversing portion (54) regulates the bidirectional pump (53) to be in communication with the water pumping pipe (55). When the bidirectional pump (53) pumps water to cause the movable end of the telescopic rod (51) to rotate forward, the reversing portion (54) maintains the bidirectional pump (53) in communication with the water pumping pipe (55) by means of a driving force generated by the rotation of the movable end of the telescopic rod (51). When the bidirectional pump (53) pumps water to cause the movable end of the telescopic rod (51) to rotate reversely, the reversing portion (54) regulates the bidirectional pump (53) in communication with the sewage discharge pipe (56) by means of a driving force generated by the rotation of the movable end of the telescopic rod (51).

2. A pure electric sprinkler truck according to claim 1, characterized in that: The closing portion (52) comprises a closing plate (521) and a sinking sponge (522); the closing plate (521) is connected to the movable end of the telescopic rod (51), and the sinking sponge (522) is connected to the closing plate (521).

3. A pure electric sprinkler truck according to claim 2, characterized in that: The sinking sponge (522) is located on a side of the closing plate (521) close to the telescopic rod (51), and a side of the sinking sponge (522) away from the closing plate (521) is connected to a dirt blocking plate (523). When 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).

4. A pure electric sprinkler truck according to claim 3, characterized in that: The water inlet hole (21) is in an inverted cone shape, the dirt shielding plate (523) is made of ferromagnetic material, and an extrusion magnetic ring (22) is embedded at the top of the hole wall of the water inlet hole (21). When the sinking sponge (522) absorbs water and pulls the closing plate (521) to close the water inlet hole (21), the dirt shielding plate (523) is located at the extrusion magnetic ring (22) and is magnetically connected to the extrusion magnetic ring (22).

5. A pure electric sprinkler truck according to claim 4, characterized in that: A plurality of rotating blades (513) are connected to the inner wall of the movable end of the telescopic rod (51), and the plurality of rotating blades (513) are arranged around the rotation axis of the movable end of the telescopic rod (51). When water flows in the movable end of the telescopic rod (51), the water drives the rotating blades (513) to rotate the movable end of the telescopic rod (51).

6. A pure electric sprinkler truck according to claim 1, characterized in that: The reversing part (54) comprises a reversing box (541), a reversing baffle (542) and a torsion spring (543); the bidirectional pump (53) is connected to the side wall of the reversing box (541); the water suction pipe (55) and the sewage discharge pipe (56) are respectively located on both sides of the connection point between the bidirectional pump (53) and the reversing box (541); the water suction pipe (55) and the sewage discharge pipe (56) are both connected to the side wall of the reversing box (541); the reversing baffle (542) is located in the reversing box (541); one end of the reversing baffle (542) is connected to a reversing shaft (5421); the reversing shaft (5421) is rotatably connected to the reversing box (541); the reversing shaft (5421) is directly opposite to the connection point between the reversing box (541) and the bidirectional pump (53); the other end of the reversing baffle (542) is used to abut against the inner wall of the reversing box (541); When the abutment point of the reversing baffle (542) and the reversing box (541) is located between the two-way pump (53) and the sewage pipe (56), the reversing baffle (542) enables the two-way pump (53) to communicate with the water suction pipe (55); when the abutment point of the reversing baffle (542) and the reversing box (541) is located between the two-way pump (53) and the water suction pipe (55), the reversing baffle (542) enables the two-way pump (53) to communicate with the sewage pipe (56); a torsion spring (543) is arranged on the reversing shaft (5421); two ends of the torsion spring (543) are respectively connected to the reversing shaft (5421) and the reversing box (541); the torsion spring (543) is used to drive the end of the reversing baffle (542) to abut between the two-way pump (53) and the sewage pipe (56).

7. A pure electric sprinkler truck according to claim 6, characterized in that: The reversing part (54) further comprises a reversing iron ring (544), a reversing magnetic ring (545) and a belt transmission (546); the reversing iron ring (544) is embedded in the outer wall of the movable end of the telescopic rod (51); the reversing 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 reversing shaft (5421) is rotatably passed through the reversing box (541); and the belt transmission (546) connects the reversing magnetic ring (545) and the reversing shaft (5421); When the closing portion (52) closes the water inlet hole (21), the reversing iron ring (544) moves to the reversing magnetic ring (545) and is magnetically connected to the reversing magnetic ring (545). When the reversing iron ring (544) rotates forward along with the movable end of the telescopic rod (51), the reversing iron ring (544) drives the reversing magnetic ring (545) so that the contact point between the reversing baffle (542) and the reversing box (541) is located between the bidirectional pump (53) and the sewage discharge pipe (56). When the reversing iron ring (544) rotates reversely along with the movable end of the telescopic rod (51), the reversing iron ring (544) drives the reversing magnetic ring (545) so that the contact point between the reversing baffle (542) and the reversing box (541) is located between the bidirectional pump (53) and the water pumping pipe (55).

8. A pure electric sprinkler truck according to claim 1, characterized in that: The device also comprises a time estimation component (6), the time estimation component (6) comprising an air duct (61), the air duct (61) being connected to the water storage tank (1), a fan (62) being arranged in the air duct (61), the fan (62) being arranged near the bottom end of the air duct (61), the fan (62) being connected to a rotating shaft (621), the rotating shaft (621) being rotatably arranged on a water spray pipe (13) connected to the bottom end of the water storage tank (1), a water spray pump (14) being arranged on the water spray pipe (13), one end of the rotating shaft (621) being located in the water spray pipe (13) being connected to an impeller (622), and when the water spray pump (14) sucks water in the water storage tank (1), the water flow in the water spray pipe (13) can drive the impeller (622) to rotate; A sliding ring (63) is slidably arranged in the air duct (61), and the sliding ring (63) is connected to the filter floating plate (2). When the filter floating plate (2) slides vertically, the sliding ring (63) slides in the air duct (61). An elastic breathable membrane (64) is connected in the sliding ring (63), and a strain gauge (65) is connected to the elastic breathable membrane (64). The strain gauge (65) is electrically connected to a controller (66), and the controller (66) is electrically connected to a display screen (67). The display screen (67) is used to be installed in the cab of the water sprinkler truck. The strain gauge (65) is used to output a deformation signal of the elastic breathable membrane (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.

9. A pure electric sprinkler truck according to claim 8, characterized in that: A mounting hole (11) is provided on the side wall of the water storage tank (1), a mounting plate (12) is sealed at the mounting hole (11), the air duct (61) is connected to the mounting plate (12), a sliding hole (611) is provided on the side of the air duct (61) close to the mounting plate (12), a first magnetic block (68) is slidably provided in the sliding hole (611), the first magnetic block (68) is connected to the sliding ring (63), a second magnetic block (69) is embedded in the filter floating plate (2), the second magnetic block (69) and the first magnetic block (68) are arranged opposite to each other with the mounting plate (12) separated, and the first magnetic block (68) and the second magnetic block (69) are magnetically connected.

10. A pure electric sprinkler truck according to claim 9, characterized in that: The mounting plate (12) has a portion exposed to the air duct (61), and the mounting plate (12) is made of acrylic material.

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