High-pressure water pump anti-freezing protection system and high-pressure cleaning vehicle

Abstract

The utility model relates to a high-pressure water pump anti-freezing protection system and a high-pressure cleaning vehicle, the high-pressure water pump anti-freezing protection system comprises a water tank, a water pump, a three-way valve, a water outlet pipeline and an anti-freezing liquid tank, the water tank is communicated with a first inlet of the three-way valve, an outlet of the three-way valve is communicated with an inlet of the water pump, and an outlet of the water pump is communicated with the water outlet pipeline; the anti-freezing liquid tank communicates with a second inlet of the three-way valve. The high-pressure cleaning vehicle comprises the high-pressure water pump anti-freezing protection system. Compared with the prior art, the anti-freezing protection system for the high-pressure water pump is provided with the anti-freezing liquid tank, when the anti-freezing protection system is not used in winter, the pipeline and the high-pressure water pump are filled with anti-freezing liquid, the anti-freezing liquid has a lower freezing point and cannot be frozen in winter, and the pipeline and the high-pressure water pump are prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of special-purpose vehicles, in particular to a high-pressure water pump antifreeze protection system and a high-pressure cleaning vehicle. Background Art

[0002] High-pressure cleaning vehicles are also called pipe dredging vehicles. They use the strong pressure generated by high-pressure water flow to flush blocked pipes. The main components are tanks, high-pressure pumps, hydraulic systems, etc. High-pressure cleaning vehicles are mainly used to clean urban sewers, sediments in pipes, and dredge dead corner mud ditches. They can also be used to clean industrial drainage pipes, walls, etc., and to clean roads and square floors.

[0003] After the high-pressure cleaning vehicles on the market are used, even if the method of injecting high-pressure gas is used, it is impossible to completely drain the water remaining in the high-pressure water pump and high-pressure water pipe. In the cold winter, the remaining water in the pipes and pump body may freeze and damage the high-pressure water pump and high-pressure water pipe. Utility Model Content

[0004] In view of this, it is necessary to provide a high-pressure water pump antifreeze protection system and a high-pressure cleaning vehicle to solve the technical problem that the high-pressure cleaning vehicle in the prior art cannot completely remove the accumulated water in the pipe, resulting in ice forming in winter and easily damaging the pipe and the high-pressure water pump.

[0005] The utility model provides a high-pressure water pump antifreeze protection system, which comprises: a water tank, a water pump, a three-way valve, a water outlet pipeline and an antifreeze liquid tank, the water tank is connected to a first inlet of the three-way valve, the outlet of the three-way valve is connected to the inlet of the water pump, the outlet of the water pump is connected to the water outlet pipeline, and the antifreeze liquid tank is connected to the second inlet of the three-way valve.

[0006] Furthermore, it also includes a flushing hose, the water inlet end of the flushing hose is connected to the outlet of the water outlet pipe.

[0007] Furthermore, the antifreeze tank has a closable filling port.

[0008] Furthermore, the flushing hose is detachably connected to the filling port.

[0009] Furthermore, the antifreeze tank stores antifreeze, and the antifreeze has a color to distinguish the water in the water tank.

[0010] Furthermore, it also includes a recovery unit, which is connected to the inside of the water pump and can transport high-pressure airflow into the water pump.

[0011] Furthermore, the recovery unit includes an air supply part, a gas pipeline and a gas valve. The air supply part is connected to the inside of the water pump through the gas pipeline. The gas valve is arranged on the gas pipeline to open or close the gas pipeline.

[0012] Furthermore, the gas supply unit is a high-pressure gas tank.

[0013] Furthermore, the air supply unit is an air pump.

[0014] The utility model provides a high-pressure cleaning vehicle, which comprises a high-pressure water pump antifreeze protection system.

[0015] Compared with the prior art, the high-pressure water pump antifreeze protection system provided by the utility model is provided with an antifreeze tank. When not in use in winter, the antifreeze is filled in the pipes and the high-pressure water pump. The antifreeze has a lower freezing point and will not freeze in winter, thereby avoiding damage to the pipes and the high-pressure water pump.

[0016] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the preferred embodiment of the utility model is described in detail as follows with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] FIG1 is a schematic structural diagram of a preferred embodiment of a high-pressure water pump antifreeze protection system provided by the utility model. DETAILED DESCRIPTION

[0019] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0020] See also Figure 1 The utility model provides a high-pressure water pump antifreeze protection system. The high-pressure water pump antifreeze protection system can be applied to a high-pressure cleaning vehicle to protect the pipeline and the high-pressure pump when not in use in winter to prevent them from being damaged by ice.

[0021] The high-pressure water pump antifreeze protection system comprises a water tank 1, a water pump 2, a three-way valve 3, a water outlet pipe 4 and an antifreeze tank 5. The water tank 1 is connected to the first inlet of the three-way valve 3, the outlet of the three-way valve 3 is connected to the inlet of the water pump 2, the outlet of the water pump 2 is connected to the water outlet pipe 4, and the antifreeze tank 5 is connected to the second inlet of the three-way valve 3.

[0022] The water tank 1, the water pump 2 and the water outlet pipe 4 constitute the flushing system of the current high-pressure cleaning vehicle. The water tank 1 is used to store clean water and has a water inlet for adding clean water. The water pump 2 pumps clean water out of the water tank 1 and sprays it out through the water outlet pipe 4 after pressurization for flushing.

[0023] In this embodiment, a three-way valve 3 is provided on the pipeline between the water tank 1 and the water pump 2, and the antifreeze tank 5 is connected to the second inlet of the three-way valve 3. When the first inlet and outlet of the three-way valve 3 are connected and the second inlet is closed, the water pump 2 can pump out the clean water in the water tank 1 for flushing. When the cleaning operation is completed, in order to prevent the accumulated water in the pipeline from freezing, the three-way valve 3 is operated to connect the second inlet and outlet, and the first inlet is closed. The water pump 2 can pump out the antifreeze in the antifreeze tank 5, and the antifreeze flows into the water pump 2 and the outlet pipe 4 to squeeze out the accumulated water therein. When the water pump 2 and the outlet pipe 4 are filled with antifreeze, the water pump 2 is turned off. The antifreeze has a lower freezing point and will not freeze in winter, thereby preventing the outlet pipe 4 and the water pump 2 from being damaged.

[0024] In some embodiments, the antifreeze stored in the antifreeze tank 5 has a color, such as red, blue or green, to distinguish it from the clean water in the water tank 1. When the antifreeze is used to squeeze out the accumulated water, the antifreeze will mix with the accumulated water, making the color of the antifreeze lighter. The color of the water flowing out of the water outlet pipe 4 can be observed. When the color changes from light to dark and gradually returns to the original color of the antifreeze, and the naked eye cannot distinguish the difference, it can be considered that the antifreeze has filled the water pump 2 and the water outlet pipe 4, and the water pump 2 can be turned off.

[0025] In some embodiments, the high-pressure water pump antifreeze protection system further includes a flushing hose 6 , the water inlet end of the flushing hose 6 is connected to the outlet of the water outlet pipe 4 , and the water flowing out of the water outlet pipe 4 flows out through the flushing hose 6 .

[0026] In some embodiments, the antifreeze tank 5 has a closable filling port for filling the antifreeze pipe 5 with water.

[0027] In some embodiments, the flush hose 6 is detachably connected to the filling port. When the antifreeze liquid that can flow out becomes darker in color, the flush hose 6 is inserted into the filling port to circulate the antifreeze liquid, thereby saving some of the antifreeze liquid.

[0028] In some embodiments, the high-pressure water pump antifreeze protection system further includes a recovery unit 7, which is connected to the inside of the water pump 2 and can deliver high-pressure airflow into the water pump 2. When flushing is required, the recovery unit 7 is used to deliver high-pressure airflow into the water pump 2 to blow the antifreeze liquid back into the antifreeze tank 5 and recover it for next use.

[0029] In some embodiments, the recovery unit 7 includes a gas supply portion 71, a gas pipeline 72 and a gas valve 73. The gas supply portion 71 is connected to the inside of the water pump 2 through the gas pipeline 72. The gas valve 73 is arranged on the gas pipeline 2 to open or close the gas pipeline 72. The gas valve 73 is usually in a closed state and is opened only when the antifreeze is recovered.

[0030] In this embodiment, the gas supply unit 71 is a high-pressure gas cylinder, which has the advantage of low equipment cost, but is a consumable product with a higher use cost.

[0031] In other embodiments, the air supply unit is an air pump that can continuously provide high-pressure airflow.

[0032] The utility model also provides a high-pressure cleaning vehicle, which comprises a high-pressure water pump antifreeze protection system.

[0033] Compared with the prior art, the high-pressure water pump antifreeze protection system provided by the utility model is provided with an antifreeze tank. When not in use in winter, the antifreeze is filled in the pipes and the high-pressure water pump. The antifreeze has a lower freezing point and will not freeze in winter, thereby avoiding damage to the pipes and the high-pressure water pump.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A high-pressure water pump antifreeze protection system, characterized in that: It includes: A water tank, a water pump, a three-way valve, a water outlet pipe and an antifreeze tank, wherein the water tank is connected to the first inlet of the three-way valve, the outlet of the three-way valve is connected to the inlet of the water pump, the outlet of the water pump is connected to the water outlet pipe, and the antifreeze tank is connected to the second inlet of the three-way valve.

2. The high-pressure water pump antifreeze protection system according to claim 1, characterized in that: It also includes a flushing hose, the water inlet end of which is connected to the outlet of the water outlet pipe.

3. The high-pressure water pump antifreeze protection system according to claim 2, characterized in that: The antifreeze tank has a closable filling port.

4. The high-pressure water pump antifreeze protection system according to claim 3, characterized in that: The flushing hose is detachably connected to the filling port.

5. The high-pressure water pump antifreeze protection system according to claim 1, characterized in that: The antifreeze tank stores antifreeze, and the antifreeze has a color to distinguish the water in the water tank.

6. The high-pressure water pump antifreeze protection system according to claim 4, characterized in that: It also includes a recovery unit, which is connected to the inside of the water pump and can transport high-pressure airflow into the water pump.

7. The high-pressure water pump antifreeze protection system according to claim 6, characterized in that: The recovery unit includes an air supply part, a gas pipeline and a gas valve. The air supply part is connected to the inside of the water pump through the gas pipeline. The gas valve is arranged on the gas pipeline to open or close the gas pipeline.

8. The high-pressure water pump antifreeze protection system according to claim 7, characterized in that: The gas supply part is a high-pressure gas tank.

9. The high-pressure water pump antifreeze protection system according to claim 7, characterized in that: The air supply part is an air pump.

10. A high pressure cleaning vehicle, characterized in that: It comprises a high-pressure water pump antifreeze protection system as described in any one of claims 1-9.

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