A liquid spreading vehicle

By merging the high and low pressure water circuit systems and controlling them with solenoid valves, the problems of complexity and installation difficulties of liquid spreader equipment were solved, resulting in cost reduction and water circuit optimization.

CN224299874UActive Publication Date: 2026-05-29SHENYANG DEHENG MACHINERY MFG

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENYANG DEHENG MACHINERY MFG
Filing Date
2025-04-18
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

The existing dual-pump water system design of liquid spreader trucks results in high equipment complexity and cost, as well as problems such as water seepage and leakage. The low-pressure water pump also interferes with the chassis drive shaft, making installation difficult.

Method used

The high-pressure and low-pressure water systems are combined into one water system, with solenoid valves controlling the water flow and metal hoses used for connection. The water pump and power take-off system on the low-pressure water system are eliminated, and water is supplied through the high-pressure water system, simplifying the water system structure.

Benefits of technology

It reduced equipment costs and installation difficulty, decreased water leakage, solved the problem of interference between the water pump and the drive shaft, and optimized the water circuit design.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224299874U_ABST
    Figure CN224299874U_ABST
Patent Text Reader

Abstract

The utility model discloses a liquid spreading vehicle relates to road surface cleaning technical field, including the vehicle body, the inside low pressure waterway mechanism of vehicle body is provided with, the inside water pump mechanism of vehicle body end is provided with, the high pressure water -spraying mechanism and low pressure waterway mechanism are set up in the lower portion of water pump mechanism. The utility model discloses through with high, low pressure two waterway systems and become one waterway system, cancel the water pump, power -taking system and water -absorbing part pipeline on low pressure waterway, change into by high pressure waterway's water pump simultaneously to high, low pressure waterway water supply, through solenoid valve control high low pressure waterway's opening, thereby realize high, low pressure waterway system spray water's function. In this way, not only reduced product cost, simultaneously make waterway get the optimization, can also solve the problem of water pump and transmission shaft interference, because two waterway systems and become a set of waterway system, and the number of waterway joint reduces everywhere, greatly reduced the phenomenon of waterway water seepage, water leakage.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of road cleaning technology, specifically to a liquid spreader. Background Technology

[0002] Liquid spreader trucks, as specialized engineering vehicles, are widely used in road snow removal, cleaning, and liquid material spraying. In winter snow removal operations, their high-pressure water system is used to spray de-icing agents to quickly remove snow; in non-winter operations, the low-pressure water system is used for road cleaning and dust suppression, achieving efficient cleaning through front-end duckbill flushing, middle counter-flushing, or rear water jet spraying. However, existing technology has the following drawbacks:

[0003] 1. Existing liquid spreading vehicles generally adopt a dual-pump water system design, that is, the high-pressure water circuit and the low-pressure water circuit are respectively equipped with independent power and pipeline structures, resulting in high equipment complexity and high operating costs.

[0004] 2. In existing technologies, high-pressure and low-pressure water circuits need to be connected through a large number of joints. Installation errors or poor sealing can easily cause water seepage and leakage problems, affecting the reliability of the equipment.

[0005] 3. Due to space limitations under the vehicle, existing low-pressure water pumps often interfere with the chassis drive shaft, requiring repeated adjustments during installation, which increases construction difficulty and time costs. Utility Model Content

[0006] The purpose of this invention is to provide a liquid dispensing vehicle to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0008] A liquid spraying vehicle includes a vehicle body, a low-pressure water circuit mechanism inside the vehicle body, a water pump mechanism inside the end of the vehicle body, and a high-pressure water spraying mechanism below the water pump mechanism.

[0009] The water pump mechanism includes a motor, a flow meter, a solenoid valve, a high-pressure water circuit interface, a low-pressure water circuit connection port, a water tank connection pipe, a backwash filter, and a connecting pipe. The output end of the motor is equipped with a water pump. The left side of the water pump is connected to the water tank connection pipe via a flange. The outlet of the water pump is connected to the backwash filter via a flange. The end of the backwash filter away from the water pump is connected to the flow meter via a flange.

[0010] A further improvement of this utility model is that: the end of the flow meter away from the backwash filter is connected to the solenoid valve through a flange, the end of the solenoid valve away from the flow meter is connected to the connecting pipe through a flange, and the bottom end of the connecting pipe is fixedly connected to a high-pressure water interface, and the number of high-pressure water interfaces is multiple.

[0011] A further improvement of this utility model is that a low-pressure water circuit solenoid valve is provided at the end of the connecting pipe away from the solenoid valve, and the low-pressure water circuit solenoid valve is connected to the low-pressure water circuit connection port through a flange.

[0012] A further improvement of the present invention is that the high-pressure water spraying mechanism includes a high-pressure water spraying device, which is located at the bottom end of the vehicle body. A first high-pressure water channel receiving interface is provided on the top surface of the high-pressure water spraying device. The first high-pressure water channel receiving interface is connected to the high-pressure water channel interface through a hydraulic hose. Multiple nozzles are provided on the surface of the high-pressure water spraying device.

[0013] A further improvement of the present invention is that the low-pressure water circuit mechanism includes a duckbill water circuit, a duckbill water circuit solenoid valve, a first counter-flushing water circuit, a second counter-flushing water circuit, a water sluice water circuit, and a connecting pipe. The duckbill water circuit is fixedly installed inside the vehicle body. A duckbill water circuit solenoid valve is provided at the end of the duckbill water circuit. The end of the duckbill water circuit is connected to the first counter-flushing water circuit through a flange.

[0014] A further improvement of this utility model is that: a first-stage flushing water circuit solenoid valve is provided in the middle of the first-stage flushing water circuit; the end of the first-stage flushing water circuit is connected to the second-stage flushing water circuit via a flange; a second-stage flushing water circuit solenoid valve is provided in the middle of the second-stage flushing water circuit; the end of the second-stage flushing water circuit is connected to a connecting pipe via a flange; and the end of the connecting pipe away from the second-stage flushing water circuit is connected to the water sluice water circuit via a flange.

[0015] A further improvement of this utility model is that: there are two water sluice channels, a water sluice channel solenoid valve is provided at the intersection of the two water sluice channels, and a connection port is provided at the beginning of the water sluice channel, and the connection port is connected to the low-pressure water channel connection port through a flange.

[0016] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0017] 1. This utility model provides a liquid spraying vehicle that combines high-pressure and low-pressure water systems into one. The water pump, power take-off system, and water suction pipeline on the low-pressure water system are eliminated, and the water pump on the high-pressure water system supplies water to both the high-pressure and low-pressure water systems simultaneously. The opening of the high-pressure and low-pressure water systems is controlled by a solenoid valve, thereby realizing the function of spraying water from both high-pressure and low-pressure water systems. This not only reduces product costs but also optimizes the water system and solves the problem of interference between the water pump and the drive shaft. Because the two water systems are combined into one, the number of water system joints is reduced, greatly reducing the phenomenon of water seepage and leakage.

[0018] 2. This utility model provides a liquid dispensing vehicle that combines two systems simultaneously using metal hoses, solving the problem of installation errors preventing the installation of the two systems on and off the vehicle. This not only reduces product costs but also optimizes the water system and solves the problem of interference in the chassis drive shaft caused by limited installation space. Attached Figure Description

[0019] Figure 1 This is a front view structural diagram of the present utility model;

[0020] Figure 2 This is a schematic diagram of the low-pressure water circuit mechanism of this utility model;

[0021] Figure 3 This is a schematic diagram of the left-side structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the water pump mechanism of this utility model;

[0023] Figure 5 This is a schematic diagram of the high-pressure water circuit section of this utility model;

[0024] Figure 6 This is a front view schematic diagram of the high-pressure water circuit structure of this utility model;

[0025] Figure 7 This is a schematic diagram of the high-pressure water spraying mechanism of this utility model;

[0026] Figure 8 This is a top view of the structure of this utility model.

[0027] In the diagram: 1. Vehicle body; 2. Low-pressure water system; 21. Duckbill water system; 22. Duckbill water system solenoid valve; 23. No. 1 counter-flushing water system solenoid valve; 24. No. 1 counter-flushing water system; 25. No. 2 counter-flushing water system solenoid valve; 26. No. 2 counter-flushing water system; 27. Water slug water system solenoid valve; 28. Water slug water system; 29. ​​Connection port; 210. Connecting pipe; 3. Water pump system; 31. Motor; 32. Water pump; 33. Flow meter; 34. Solenoid valve; 35. Low-pressure water system solenoid valve; 36. High-pressure water system interface; 37. Low-pressure water system connection port; 38. Water tank connecting pipe; 39. Backwash filter; 310. Connecting pipe; 4. High-pressure water spraying mechanism; 41. High-pressure water spraying device; 42. No. 1 high-pressure water system interface; 43. Nozzle. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to embodiments:

[0029] Example 1

[0030] like Figure 1-8 As shown, this utility model provides a liquid spraying vehicle, including a vehicle body 1. A low-pressure water circuit mechanism 2 is installed inside the vehicle body 1, and a water pump mechanism 3 is installed at the end of the vehicle body 1. A high-pressure water spraying mechanism 4 is installed below the water pump mechanism 3. The water pump mechanism 3 includes a motor 31, a flow meter 33, a solenoid valve 34, a high-pressure water circuit interface 36, a low-pressure water circuit connection port 37, a water tank connection pipe 38, a backwash filter 39, and a connecting pipe 310. A water pump 32 is installed at the output end of the motor 31. The left side of the water pump 32 is connected to the water tank connection pipe 38 via a flange. The outlet of the water pump 32 is connected to the backwash filter 39 via a flange. The end of the backwash filter 39 away from the water pump 32 is connected to the flow meter 33 via a flange. The end of the flow meter 33 away from the backwash filter 39 is connected to the solenoid valve 34 via a flange. The solenoid valve 34 is connected to the connecting pipe 310 via a flange at the end away from the flow meter 33. A high-pressure water interface 36 is fixedly connected to the bottom end of the connecting pipe 310. There are multiple high-pressure water interfaces 36. A low-pressure water solenoid valve 35 is provided at the end of the connecting pipe 310 away from the solenoid valve 34. The low-pressure water solenoid valve 35 is connected to the low-pressure water connection port 37 via a flange. The high-pressure water spraying mechanism 4 includes a high-pressure water spraying device 41, which is located at the bottom end of the vehicle body 1. A first high-pressure water interface 42 is provided on the top surface of the high-pressure water spraying device 41. The first high-pressure water interface 42 is connected to the high-pressure water interface 36 via a hydraulic hose. Multiple nozzles 43 are provided on the surface of the high-pressure water spraying device 41.

[0031] In this embodiment, by setting up a water pump mechanism 3 consisting of a motor 31, a water pump 32, a flow meter 33, a solenoid valve 34, a low-pressure water circuit solenoid valve 35, a high-pressure water circuit interface 36, a low-pressure water circuit connection port 37, a water tank connection pipe 38, a backwash filter 39, and a connecting pipe 310, and a high-pressure water spraying mechanism 4 consisting of a high-pressure water spraying device 41, a first high-pressure water circuit interface 42, and a nozzle 43, the two work together to merge the existing high-pressure and low-pressure water circuit systems into one water circuit system. The water pump, power take-off system, and water suction pipe on the low-pressure water circuit are eliminated, and the water pump 32 of the high-pressure water circuit supplies water to both the high-pressure and low-pressure water circuits simultaneously. The opening of the high-pressure and low-pressure water circuits is controlled by the solenoid valve 34, thereby realizing the function of spraying water from the high-pressure and low-pressure water circuit systems. The two systems are merged together with a metal hose, which solves the problem that the installation error of the two systems leads to the inability to install the two systems on and off the vehicle. This not only reduces product costs but also optimizes the water system and solves the problem of interference between the water pump and the drive shaft. When needed, the full-power PTO is simply transmitted to the gear pump via the drive shaft. The gear pump then drives the motor 31, and the output of the motor 31 drives the water pump 32 to output power. This causes the water tank connection pipe 38 to draw water from the plate water tank, which is then filtered through the backwash filter 39. The filtered water is then measured by the flow meter 33, and the solenoid valve 34 is activated to supply water to the high-pressure water interface 36. This activates the high-pressure sprinkler device 41, which is supplied with water through the high-pressure water interface 36. The water then sprays onto the road surface through the first high-pressure water interface 42 and the nozzle 43.

[0032] Example 2

[0033] like Figure 1-8 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the low-pressure water circuit mechanism 2 includes a duckbill water circuit 21, a duckbill water circuit solenoid valve 22, a first counter-flushing water circuit 24, a second counter-flushing water circuit 26, a water sluice water circuit 28, and a connecting pipe 210. The duckbill water circuit 21 is fixedly installed inside the vehicle body 1. A duckbill water circuit solenoid valve 22 is provided at the end of the duckbill water circuit 21. The end of the duckbill water circuit 21 is connected to the first counter-flushing water circuit 24 through a flange. A first counter-flushing water circuit solenoid valve 23 is provided in the middle of the first counter-flushing water circuit 24. The end of waterway 24 is connected to the second counter-flushing waterway 26 via a flange. A second counter-flushing waterway solenoid valve 25 is installed in the middle of the second counter-flushing waterway 26. The end of the second counter-flushing waterway 26 is connected to the connecting pipe 210 via a flange. The end of the connecting pipe 210 away from the second counter-flushing waterway 26 is connected to the water sluice waterway 28 via a flange. There are two water sluice waterways 28. A water sluice waterway solenoid valve 27 is installed at the junction of the two water sluice waterways 28. A connection port 29 is installed at the beginning of the water sluice waterway 28. The connection port 29 is connected to the low-pressure waterway connection port 37 via a flange.

[0034] In this embodiment, a low-pressure water circuit mechanism 2 is set up, consisting of a duckbill water circuit 21, a duckbill water circuit solenoid valve 22, a first counter-flushing water circuit solenoid valve 23, a first counter-flushing water circuit 24, a second counter-flushing water circuit solenoid valve 25, a second counter-flushing water circuit 26, a water slug water circuit solenoid valve 27, a water slug water circuit 28, a connection port 29, and a connection pipe 210. Water can be supplied to the low-pressure water circuit. Simply start the low-pressure water circuit solenoid valve 35, and the water pump 32 will draw water through the water tank connection pipe 38 and enter the low-pressure water circuit mechanism 2 through the connection port 29 connected to the low-pressure water circuit connection port 37 via a flange. The user can open the corresponding solenoid valve to supply water according to the required function.

[0035] The working principle of this liquid spreader will be explained in detail below.

[0036] like Figure 1-8 As shown, in use, the full-power PTO first transmits power to the gear pump through the drive shaft. Then, the gear pump drives the motor 31, and the output end of the motor 31 drives the water pump 32 to achieve power output. This causes the water tank connection pipe 38 to draw water out of the plate water tank. The water is then filtered through the backwash filter 39, and the filtered water is measured by the flow meter 33. Then, the solenoid valve 34 is activated to supply water to the high-pressure water interface 36. Then, the high-pressure water sprinkler 41 is activated, and the high-pressure water interface 36 can supply water to the high-pressure water sprinkler 41. Water can be sprayed on the road surface through the first high-pressure water interface 42 and the nozzle 43. Then, the low-pressure water solenoid valve 35 is opened. The water pump 32 draws water through the water tank connection pipe 38 and enters the low-pressure water mechanism 2 through the connection port 29 connected to the low-pressure water interface 37 via the flange. The user can open the corresponding solenoid valve to supply water according to the required function.

[0037] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A liquid dispensing vehicle, comprising a vehicle body (1), characterized in that: The vehicle body (1) is equipped with a low-pressure water circuit mechanism (2) inside, and a water pump mechanism (3) is installed inside the end of the vehicle body (1). A high-pressure water spraying mechanism (4) is installed at the lower part of the water pump mechanism (3). The water pump mechanism (3) includes a motor (31), a flow meter (33), a solenoid valve (34), a high-pressure water circuit interface (36), a low-pressure water circuit connection port (37), a water tank connection pipe (38), a backwash filter (39), and a connecting pipe (310). The output end of the motor (31) is equipped with a water pump (32). The left side of the water pump (32) is connected to the water tank connection pipe (38) through a flange. The outlet of the water pump (32) is connected to the backwash filter (39) through a flange. The end of the backwash filter (39) away from the water pump (32) is connected to the flow meter (33) through a flange.

2. The liquid dispensing vehicle according to claim 1, characterized in that: The end of the flow meter (33) away from the backwash filter (39) is connected to the solenoid valve (34) via a flange. The end of the solenoid valve (34) away from the flow meter (33) is connected to the connecting pipe (310) via a flange. The bottom end of the connecting pipe (310) is fixedly connected to a high-pressure water interface (36). There are multiple high-pressure water interfaces (36).

3. A liquid dispensing vehicle according to claim 2, characterized in that: A low-pressure water circuit solenoid valve (35) is provided at the end of the connecting pipe (310) away from the solenoid valve (34), and the low-pressure water circuit solenoid valve (35) is connected to the low-pressure water circuit connection port (37) through a flange.

4. A liquid dispensing vehicle according to claim 3, characterized in that: The high-pressure water spraying mechanism (4) includes a high-pressure water spraying device (41), which is located at the bottom end of the vehicle body (1). A high-pressure water channel receiving interface (42) is provided on the top surface of the high-pressure water spraying device (41). The high-pressure water channel receiving interface (42) is connected to the high-pressure water channel interface (36) through a hydraulic hose. Multiple nozzles (43) are provided on the surface of the high-pressure water spraying device (41).

5. A liquid dispensing vehicle according to claim 4, characterized in that: The low-pressure water circuit mechanism (2) includes a duckbill water circuit (21), a duckbill water circuit solenoid valve (22), a first flushing water circuit (24), a second flushing water circuit (26), a water sluice water circuit (28), and a connecting pipe (210). The duckbill water circuit (21) is fixedly installed inside the vehicle body (1). A duckbill water circuit solenoid valve (22) is provided at the end of the duckbill water circuit (21). The end of the duckbill water circuit (21) is connected to the first flushing water circuit (24) through a flange.

6. A liquid dispensing vehicle according to claim 5, characterized in that: A first-stage counter-flushing water passage solenoid valve (23) is installed in the middle of the first-stage counter-flushing water passage (24). The end of the first-stage counter-flushing water passage (24) is connected to the second-stage counter-flushing water passage (26) through a flange. A second-stage counter-flushing water passage solenoid valve (25) is installed in the middle of the second-stage counter-flushing water passage (26). The end of the second-stage counter-flushing water passage (26) is connected to the connecting pipe (210) through a flange. The end of the connecting pipe (210) away from the second-stage counter-flushing water passage (26) is connected to the water sluice water passage (28) through a flange.

7. A liquid dispensing vehicle according to claim 6, characterized in that: There are two water sluice channels (28). A water sluice channel solenoid valve (27) is provided at the intersection of the two water sluice channels (28). A connection port (29) is provided at the beginning of the water sluice channel (28). The connection port (29) is connected to the low-pressure water channel connection port (37) through a flange.