High-pressure flushing device for watering cart

Abstract

The invention relates to the technical field of road cleaning devices, and discloses a watering cart high-pressure flushing device which comprises a hanging bracket, a water pump and a pressurizing mechanism, the water pump is installed at the bottom of the hanging bracket, the pressurizing mechanism comprises a pressurizing assembly and an auxiliary assembly, the auxiliary assembly comprises a plurality of impellers, and the impellers are installed in the water pump; a water inlet pipe is arranged on the outer side of the water pump, a water outlet pipe is arranged at one end of the water pump, one-way valves are arranged at the connecting positions of the water inlet pipe and the water pump and the connecting positions of the water outlet pipe and the water pump, a disc is fixedly connected to the output end of the motor, and a shifting rod is fixedly connected to the outer side of the disc; the motor is installed on the outer side of the hanging bracket. Through a dual-pressurization mechanism inside the water pump, negative pressure water suction is formed through reciprocating motion of the piston, kinetic energy is given to water through rotation of the impeller, water pressure is greatly improved through the synergistic effect, the road surface can be efficiently flushed with strong power, and the effect far exceeds that of a traditional water pump.

Description

Technical Field

[0001] The present invention relates to the technical field of road cleaning devices, in particular to a high-pressure flushing device for a sprinkler truck. Background Art

[0002] Sprinkler trucks play a vital role in urban road cleaning and maintenance. The main function of traditional sprinkler truck flushing devices is to simply spray water on the road surface to reduce dust. They typically operate on routine operations on urban main roads, secondary roads, and some residential roads. With the continuous improvement of urban environmental standards, the requirements for road cleanliness are becoming increasingly stringent. Not only must surface dust be removed, but oil stains, stubborn stains, and other contaminants must also be effectively cleaned. This makes it difficult for traditional devices with only basic watering functions to meet the growing demand for cleaning. For example, in areas with a lot of oil pollution, such as restaurant streets, ordinary sprinkler trucks cannot thoroughly clean the ground, resulting in residual dirt on the ground, affecting the city appearance and posing a safety hazard.

[0003] Most traditional sprinkler truck flushing systems utilize a relatively simple water pump structure. The pump draws water from a tank and sprays it through a fixed-angle nozzle, where the water impacts the road surface under its own gravity and initial pressure. The nozzle is typically fixed to the bottom or side of the truck. The pump typically features a single-stage impeller, using the centrifugal force generated by the impeller's rotation to deliver water.

[0004] Existing technologies face numerous practical challenges. First, single-stage impeller pumps struggle to generate sufficient pressure to flush away stubborn stains. For example, roads surrounding industrial plants are frequently used for transporting goods, often resulting in a mixture of oil and mud. Single-stage pumps, with their insufficient pressure, are unable to effectively remove these stains. Therefore, the present invention provides a high-pressure flushing device for sprinkler trucks to address these shortcomings. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the present invention provides a high-pressure flushing device for a sprinkler truck, which solves the problem in the prior art that the water pressure of the sprinkler truck when flushing the road surface is too low to effectively clean the road surface.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a high-pressure flushing device for a sprinkler truck, comprising a hanger, a water pump and a boosting mechanism, wherein the water pump is installed at the bottom of the hanger, the boosting mechanism comprises a pressurizing component and an auxiliary component, the auxiliary component comprises a plurality of impellers, and the plurality of impellers are installed inside the water pump, an inlet pipe is provided on the outside of the water pump, a water outlet pipe is provided at one end of the water pump, and a one-way valve is provided at the connection between the inlet pipe, the outlet pipe and the water pump.

[0007] Preferably, the pressurizing assembly includes a motor, which is mounted on the outside of the hanger. The output end of the motor is fixedly connected to a disc, and the outside of the disc is fixedly connected to a shifting rod.

[0008] Preferably, two hanging rods are fixedly connected to the bottom of the hanger, the inner sides of the two hanging rods are slidably connected to a cross frame, and the outer side of the shifting rod is slidably connected to the inner side of the cross frame.

[0009] Preferably, one end of the cross frame passes through the inner wall of the water pump and is fixedly connected to a piston, and the outer side of the piston is slidably connected to the inner wall of the water pump.

[0010] Preferably, a flushing mechanism is installed on the outside of the water pump, and the flushing mechanism includes a support frame, one end of the support frame is fixedly connected to the outside of the water pump, and the other end of the support frame is fixedly connected to a mounting frame.

[0011] Preferably, an electric telescopic rod is installed on the inner side of the mounting frame, the output end of the electric telescopic rod is fixedly connected to a movable block, and the outer side of the movable block is rotatably connected to two groups of rotating rods, and the number of rotating rods in each group is two.

[0012] Preferably, two groups of positioning rods are fixedly connected to the outer side of the mounting frame, and the number of positioning rods in each group is two. The adjacent sides of each group of positioning rods are rotatably connected to nozzles, and the adjacent sides of each group of rotating rods are rotatably connected to the outer side of the corresponding nozzle.

[0013] Preferably, one end of the nozzle is fixedly connected to a conduit, and one end of the conduit is fixedly connected to the water outlet pipe.

[0014] The present invention provides a high-pressure flushing device for a sprinkler truck. It has the following beneficial effects:

[0015] 1. The device of the present invention is firmly suspended at the bottom of the sprinkler truck to ensure overall stability, laying the foundation for subsequent operations. At the same time, the water inlet pipe and the water tank are tightly connected to ensure smooth water supply, avoid problems such as leakage, and improve work efficiency. The dual pressurization mechanism inside the water pump uses the reciprocating motion of the piston to form negative pressure to absorb water and the rotation of the impeller to give kinetic energy to the water. The synergistic effect greatly increases the water pressure, which can effectively wash the road surface with powerful power, far exceeding the effect of traditional water pumps.

[0016] 2. The present invention can flexibly adjust the flushing range through the flushing mechanism. The movable block is moved by the extension of the electric telescopic rod, and the rotating rod drives the nozzle to rotate around the positioning rod. This flexible adjustment method can adjust the swing angle of the nozzle according to different road conditions by controlling the extension and contraction frequency and stroke of the electric telescopic rod, thereby achieving efficient flushing of a wider road range with high-pressure water columns. Compared with traditional sprinkler trucks, the road cleaning ability is greatly enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A perspective view of the present invention;

[0018] Figure 2 It is a schematic diagram of the disc structure of the present invention;

[0019] Figure 3 It is a schematic diagram of the cross frame structure of the present invention;

[0020] Figure 4 It is a schematic diagram of the hanger structure of the present invention;

[0021] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0022] Among them, 1. hanger; 2. water pump; 3. motor; 4. disc; 5. hanging rod; 6. lever; 7. cross frame; 8. piston; 9. impeller; 10. water inlet pipe; 11. water outlet pipe; 12. support frame; 13. mounting frame; 14. electric telescopic rod; 15. movable block; 16. positioning rod; 17. nozzle; 18. rotating rod; 19. catheter. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the present specification. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Please see the attached Figure 1 -Attached Figure 5An embodiment of the present invention provides a high-pressure flushing device for a sprinkler truck, comprising a hanger 1, a water pump 2, and a booster mechanism. The water pump 2 is mounted at the bottom of the hanger 1. The booster mechanism comprises a pressurizing assembly and an auxiliary assembly. The auxiliary assembly comprises a plurality of impellers 9 mounted within the water pump 2. When the motor 3 is turned on, its output shaft drives the disc 4 to perform circular motion, causing the lever 6 to rotate accordingly. Since the outer side of the lever 6 is slidingly connected to the inner side of the cross frame 7, as the disc 4 continues to rotate, the lever 6 will periodically push the cross frame 7. When the cross frame 7 is pushed by the lever 6, it will make a linear reciprocating motion along the inner direction of the two hanging rods 5. One end of the cross frame 7 is fixedly connected to the piston 8, so the reciprocating movement of the cross frame 7 will synchronously drive the piston 8 to slide back and forth in the inner wall of the water pump 2. When the piston 8 moves outward, the corresponding space inside the water pump 2 increases, the pressure decreases, and a negative pressure environment is formed. At this time, the one-way valve at the water inlet pipe 10 is opened, and the water in the water tank is sucked into the water pump 2 through the water inlet pipe 10 under the action of atmospheric pressure. When the piston 8 moves inward, the internal space of the water pump 2 decreases, the pressure increases, and the one-way valve at the water inlet pipe 10 is closed to prevent water from flowing back. At the same time, the one-way valve at the water outlet pipe 11 is opened, and the water is squeezed out of the water pump 2. At the same time, the multiple impellers 9 installed inside the water pump 2, when the water pump 2 is running, the motor 3 drives the impeller 9 to rotate at high speed. The rotation of the impeller 9 causes the water to be thrown from the center of the impeller 9 to the edge of the impeller 9 under the action of centrifugal force. In this process, the water obtains additional kinetic energy, further increasing the water pressure. The negative pressure generated by the reciprocating motion of the piston 8 and the kinetic energy imparted to the water by the rotation of the impeller 9 work together to achieve a double pressurization of the water, greatly increasing the pressure of the water flowing out of the outlet pipe 11. An inlet pipe 10 is provided on the outside of the water pump 2, and an outlet pipe 11 is provided at one end of the water pump 2. A one-way valve is provided at the connection between the inlet pipe 10 and the outlet pipe 11 and the water pump 2. The pressurizing assembly includes a motor 3, which is mounted on the outside of the hanger 1. The output end of the motor 3 is fixedly connected to a disc 4, and the outside of the disc 4 is fixedly connected to a lever 6. The bottom of the hanger 1 is fixedly connected to two hanging rods 5, and the inside of the two hanging rods 5 is slidably connected to a cross frame 7. The outside of the lever 6 is slidably connected to the inside of the cross frame 7. One end of the cross frame 7 passes through the inner wall of the water pump 2 and is fixedly connected to a piston 8. The outside of the piston 8 is slidably connected to the inner wall of the water pump 2. A flushing mechanism is installed on the outside of the water pump 2. The flushing mechanism includes a support frame 12, one end of the support frame 12 is fixedly connected to the outside of the water pump 2, and the other end of the support frame 12 is fixedly connected to a mounting frame 13. An electric telescopic rod 14 is mounted on the inside of the mounting frame 13, and its output end is fixedly connected to a movable block 15. When the electric telescopic rod 14 is started, it extends or shortens according to its extension command. When the electric telescopic rod 14 extends, it pushes the movable block 15 to move along the guide direction of the mounting frame 13, and the two sets of rotating rods 18 rotatably connected to the outside of the movable block 15 move accordingly.Each set of rotating rods 18 consists of two rods, one end of which is rotatably connected to the movable block 15, and the other end is rotatably connected to the outer side of the corresponding nozzle 17. Due to the rotatable connection characteristics of the rotating rods 18, as the movable block 15 moves, the rotating rods 18 rotate around the connection point with the movable block 15 and the nozzle 17, thereby driving the nozzle 17 to rotate around the positioning rod 16. The positioning rod 16 is fixed to the outside of the mounting frame 13, and each group of positioning rods 16 has two. The nozzle 17 is rotatably connected to the adjacent sides of the two positioning rods 16 to support and limit the rotation direction of the nozzle 17. When the electric telescopic rod 14 is shortened, the movable block 15 moves in the opposite direction, and the rotating rod 18 drives the nozzle 17 to rotate in the opposite direction. By controlling the telescopic frequency and stroke of the electric telescopic rod 14, the swing angle of the nozzle 17 can be flexibly adjusted, so that the high-pressure water column ejected from the nozzle 17 can cover a wider range of road surfaces, and efficiently flush the road surfaces at different locations. Compared with traditional sprinkler trucks, the flushing effect of the road surface is greatly improved. The electric telescopic rod 14 is installed on the inner side of the mounting frame 13. The output end of the rod 14 is fixedly connected to a movable block 15, and the outer side of the movable block 15 is rotatably connected to two groups of rotating rods 18, and the number of each group of rotating rods 18 is two. The outer side of the mounting frame 13 is fixedly connected to two groups of positioning rods 16, and the number of each group of positioning rods 16 is two. The adjacent sides of each group of positioning rods 16 are rotatably connected to nozzles 17, and the adjacent sides of each group of rotating rods 18 are rotatably connected to the outer sides of the corresponding nozzles 17. One end of the nozzle 17 is fixedly connected to a conduit 19, and one end of the conduit 19 is fixedly connected to the water outlet pipe 11 to ensure that the high-pressure water after double pressurization can be smoothly transported from the water outlet pipe 11 through the conduit 19 to the nozzle 17, and finally sprayed out in the form of a high-pressure water column for road washing operations.

[0025] Specifically, first, hang the hanger 1 firmly on the bottom of the sprinkler truck. This operation ensures that the entire high-pressure flushing device can move stably with the sprinkler truck, providing a reliable support foundation for subsequent road flushing operations. If the hanger 1 is not installed firmly, the device may shake, shift or even fall during the driving of the sprinkler truck, affecting the normal flushing work. Then, use a pipe to connect the water inlet pipe 10 to the water tank of the sprinkler truck. In this way, the water in the water tank can smoothly enter the water pump 2 through the water inlet pipe 10, providing water for subsequent pressurization and flushing operations. If the connection is not tight or the pipe is damaged, it may cause water leakage, which will not only waste water resources, but also affect the normal water suction of the water pump 2, thereby reducing the working efficiency of the entire device. During the driving of the sprinkler truck, the motor 3 is started. The motor 3 serves as a power source, and its output end starts to rotate and drives the disc 4 to perform a circular motion. Since the outer side of the disc 4 is fixedly connected to the lever 6, the rotation of the disc 4 will drive the lever 6 to perform a circular motion, and the outer side of the lever 6 is slidably connected to the inner side of the cross frame 7. At the same time, the cross frame 7 is slidably connected to the inner sides of the two hanging rods 5. Therefore, the circular motion of the lever 6 will be converted into a reciprocating linear movement of the cross frame 7 along the direction of the hanging rod 5. One end of the cross frame 7 penetrates the water pump 2 and is fixedly connected to the inner wall of the water pump 2 with a piston 8, so the reciprocating movement of the cross frame 7 will drive the piston 8 to slide back and forth in the inner wall of the water pump 2. When the piston 8 moves outward, the corresponding space inside the water pump 2 increases, the pressure decreases, and a negative pressure environment is formed. At this time, the one-way valve at the water inlet pipe 10 opens. Under the action of atmospheric pressure, the water in the water tank will be smoothly sucked into the water pump 2 through the water inlet pipe 10. When the piston 8 moves inward, the internal space of the water pump 2 decreases, the pressure increases, and the one-way valve at the water inlet pipe 10 closes to prevent water from flowing back. At the same time, the one-way valve at the water outlet pipe 11 opens, and water is squeezed out of the water pump 2. At the same time, the multiple impellers 9 installed inside the water pump 2 will rotate at high speed under the drive of the motor 3 when the water pump 2 is running. The rotation of the impeller 9 causes the water to be thrown from the center of the impeller 9 to the edge of the impeller 9 under the action of centrifugal force. During this process, the water gains additional kinetic energy, further increasing its pressure. The negative pressure generated by the reciprocating motion of piston 8 and the kinetic energy imparted to the water by the rotation of impeller 9 work synergistically to achieve a double pressurization of the water. This significantly increases the pressure of the water ejected from outlet pipe 11 compared to conventional pumps, enabling it to be ejected at higher pressures and velocities, providing powerful power for subsequent, efficient road flushing. Furthermore, to achieve wide-area road flushing, the electric telescopic rod 14 can be activated to extend and retract. The electric telescopic rod 14 is mounted on the inside of mounting frame 13, with its output end fixedly connected to movable block 15. When the electric telescopic rod 14 extends, it pushes movable block 15 to move along the guide direction of mounting frame 13.The outer side of the movable block 15 is rotatably connected to two sets of rotating rods 18. Each set of rotating rods 18 consists of two rods, one end of which is rotatably connected to the movable block 15 and the other end of which is rotatably connected to the outer side of the corresponding nozzle 17. Due to the rotatable connection of the rotating rods 18, as the movable block 15 moves, the rotating rods 18 rotate about the connection point between the movable block 15 and the nozzle 17, thereby driving the nozzle 17 to rotate about the positioning rods 16. The positioning rods 16 are fixed to the outer side of the mounting frame 13. There are two positioning rods 16 in each set. The nozzle 17 is rotatably connected to the adjacent sides of the two positioning rods 16, which supports and restricts the rotation direction of the nozzle 17. When the electric telescopic rod 14 is shortened, the movable block 15 moves in the opposite direction, and the rotating rods 18 drive the nozzle 17 in the opposite direction. By controlling the extension and extension frequency and stroke of the electric telescopic rod 14, the swing angle of the nozzle 17 can be flexibly adjusted. This allows the high-pressure water jet from the nozzle 17 to cover a wider range of road surface, effectively flushing different road locations. Compared with traditional sprinkler trucks, this method of adjusting the flushing range enables the device to have a stronger flushing effect on the road surface, and can clean dust, stains and other impurities on the road surface more comprehensively and efficiently.

[0026] Working principle: First, hang the hanger 1 on the bottom of the sprinkler truck, and connect the water inlet pipe 10 to the water tank of the sprinkler truck with a pipe. When the sprinkler truck is driving, start the motor 3 to drive the disc 4 to rotate, and then make the lever 6 move the cross frame 7 back and forth, thereby driving the piston 8 to move back and forth, which can produce negative pressure inside the water pump 2 when the water pump 2 is running, and then transfer energy to multiple impellers 9. Under such double pressurization, the pressure of the water sprayed from the water outlet pipe 11 increases sharply; in addition, the electric telescopic rod 14 can be started to extend and retract, thereby driving the rotating rod 18 to rotate, so that one end of the two nozzles 17 swings up and down, so that the high-pressure water column sprayed from the nozzle 17 flushes a large area of the road surface, which has a stronger flushing effect on the road surface than traditional sprinkler trucks.

[0027] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A high-pressure flushing device for a sprinkler truck, comprising a hanger (1), a water pump (2) and a booster mechanism, characterized in that: The water pump (2) is installed at the bottom of the hanger (1); the boosting mechanism includes a pressurizing component and an auxiliary component; the auxiliary component includes a plurality of impellers (9); the plurality of impellers (9) are installed inside the water pump (2); an inlet pipe (10) is provided on the outside of the water pump (2); an outlet pipe (11) is provided at one end of the water pump (2); and one-way valves are provided at the connection points between the inlet pipe (10), the outlet pipe (11) and the water pump (2).

2. A high-pressure flushing device for a sprinkler truck according to claim 1, characterized in that: The pressurizing assembly comprises a motor (3), the motor (3) being mounted on the outside of the hanger (1), the output end of the motor (3) being fixedly connected to a disc (4), and the outside of the disc (4) being fixedly connected to a shifting rod (6).

3. A high-pressure flushing device for a sprinkler truck according to claim 2, characterized in that: The bottom of the hanger (1) is fixedly connected to two hanging rods (5), the inner sides of the two hanging rods (5) are slidably connected to a cross frame (7), and the outer side of the shifting rod (6) is slidably connected to the inner side of the cross frame (7).

4. A high-pressure flushing device for a sprinkler truck according to claim 3, characterized in that: One end of the cross frame (7) penetrates the inner wall of the water pump (2) and is fixedly connected to a piston (8), and the outer side of the piston (8) is slidably connected to the inner wall of the water pump (2).

5. A high-pressure flushing device for a sprinkler truck according to claim 1, characterized in that: A flushing mechanism is installed on the outside of the water pump (2), and the flushing mechanism includes a support frame (12). One end of the support frame (12) is fixedly connected to the outside of the water pump (2), and the other end of the support frame (12) is fixedly connected to a mounting frame (13).

6. A high-pressure flushing device for a sprinkler truck according to claim 5, characterized in that: An electric telescopic rod (14) is installed on the inner side of the mounting frame (13); an output end of the electric telescopic rod (14) is fixedly connected to a movable block (15); and the outer side of the movable block (15) is rotatably connected to two groups of rotating rods (18), with each group of rotating rods (18) having two members.

7. A high-pressure flushing device for a sprinkler truck according to claim 6, characterized in that: Two groups of positioning rods (16) are fixedly connected to the outer side of the mounting frame (13), and each group of positioning rods (16) has two. The adjacent sides of each group of positioning rods (16) are rotatably connected to the nozzles (17), and the adjacent sides of each group of rotating rods (18) are rotatably connected to the outer side of the corresponding nozzle (17).

8. A high-pressure flushing device for a sprinkler truck according to claim 7, characterized in that: One end of the nozzle (17) is fixedly connected to a conduit (19), and one end of the conduit (19) is fixedly connected to a water outlet pipe (11).

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