CN220667849U - Automatic shut-off water pump device of low water level - Google Patents

Automatic shut-off water pump device of low water level Download PDF

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Publication number
CN220667849U
CN220667849U CN202322408684.6U CN202322408684U CN220667849U CN 220667849 U CN220667849 U CN 220667849U CN 202322408684 U CN202322408684 U CN 202322408684U CN 220667849 U CN220667849 U CN 220667849U
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China
Prior art keywords
water
water pump
alarm
liquid level
pressure water
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CN202322408684.6U
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Chinese (zh)
Inventor
李佳宝
胡飞扬
李金成
许武刚
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Xcmg Hubei Environmental Protection Technology Co ltd
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Xcmg Hubei Environmental Protection Technology Co ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use

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  • Control Of Positive-Displacement Pumps (AREA)

Abstract

The utility model provides a low water level automatic shutdown water pump installation, includes water pitcher, the high-pressure water pump of storage clear water, the high-pressure water pump is through inlet pipeline and water pitcher intercommunication to draw water from the water pitcher and pass through the pipeline and carry sprinkler, the inside liquid level switch that is provided with of water pitcher, liquid level switch is connected with alarm and pneumatic solenoid valve electricity respectively, liquid level switch is according to the high change of liquid level output switching value signal for alarm and pneumatic solenoid valve. The alarm gives an alarm after receiving the electric signal, and reminds people that the water level is too low and water needs to be added in time. And the pneumatic electromagnetic valve receives the electric signal and then controls the power output device to stop outputting power to the high-pressure water pump. Therefore, the high-pressure water pump is automatically closed, and the high-pressure water pump is prevented from idling and being damaged.

Description

Automatic shut-off water pump device of low water level
Technical Field
The utility model relates to the field of sanitation vehicles, in particular to the field of low water level alarming and water pump control of cleaning sewage suction trucks.
Background
At present, a cleaning sewage suction truck on the market is used for protecting a high-pressure water pump, preventing the high-pressure water pump from water shortage and idling, generally setting a liquid level alarm switch in a water tank, triggering an alarm device in a cab when the water level of the water tank is lower than the liquid level alarm switch, prompting a driver to stop operation, and closing the high-pressure water pump. However, if only the low water level alarm device is used, the operation still needs to be stopped manually after the alarm, and the problems of hearing omission, untimely stopping and the like exist, so that the high-pressure water pump idles and is damaged.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model provides the low-water-level automatic water pump shut-down device which can solve the problem that an operator leaks hearing or stops the water pump to cause the high-pressure water pump to idle in time.
In order to achieve the above purpose, the specific technical scheme of the low water level automatic shut-down water pump device of the utility model is as follows:
the utility model provides a low water level automatic shut-down water pump device, includes the water pitcher of storage clear water, communicates high-pressure water pump with the water pitcher through the water inlet pipeline, the inside liquid level switch that is provided with according to liquid level height output switching value signal of water pitcher, liquid level switch is connected with alarm and pneumatic solenoid valve electricity respectively, low water level automatic shut-down water pump device still includes the power take off to high-pressure water pump output power, pneumatic solenoid valve passes through the gas circuit and is connected with power take off to through switching gas circuit control power take off to high-pressure water pump output power.
Further, the liquid level switch is a duckbill float switch, the duckbill float switch is arranged on the inner side wall of the water tank, and after the water level in the water tank is lower than the set water level, the duckbill float switch respectively sends electric signals to the alarm and the pneumatic electromagnetic valve.
Further, the power output device is a broken shaft power takeoff, the broken shaft power takeoff is connected with the high-pressure water pump through a clutch plate, the pneumatic electromagnetic valve switches a gas path through a valve body after receiving an electric signal, the air pressure acting on the clutch plate of the broken shaft power takeoff is disconnected, and the clutch plate of the broken shaft power takeoff is separated to disconnect power connection with the high-pressure water pump.
Further, a water inlet of the high-pressure water pump is connected with a water outlet at the bottom of the water tank through a water inlet pipeline.
Compared with the prior art, the low water level automatic shut-down water pump device has the following advantages:
the low water level automatic shut-down water pump device has the functions of low water level alarm and automatic shut-down of the water pump after the alarm, can solve the problem that an operator leaks hearing or stops the water pump to cause the high-pressure water pump to idle in time, and improves the reliability of the high-pressure water pump during working.
Drawings
Fig. 1 is a schematic view of a structure for cleaning a soil pick-up car;
FIG. 2 is a schematic diagram of the connection of a low water level automatic shut-down water pump device;
fig. 3 is a schematic diagram of a low water level automatic shut-down water pump apparatus.
In the figure: 1. a liquid level switch; 2. an alarm; 3. a pneumatic solenoid valve; 4. a power take-off; 5. a high pressure water pump; 6. and (5) a water tank.
Detailed Description
For a better understanding of the objects, structures and functions of the present utility model, the low water level automatic shut-down water pump apparatus of the present utility model will be described in further detail with reference to the accompanying drawings.
In the description of the present utility model, it should be understood that the terms "upper," "lower," "center," "inner," "outer," "top," "bottom," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1-2, the low water level automatic shut-down water pump device comprises a water tank 6 for storing clear water and a high pressure water pump 5, wherein the high pressure water pump 5 is communicated with the water tank 6 through a water inlet pipeline and pumps water from the water tank 6 to a spraying device through a pipeline, a liquid level switch 1 is arranged in the water tank 6, the liquid level switch 1 is respectively electrically connected with an alarm 2 and a pneumatic electromagnetic valve 3, the liquid level switch 1 outputs a switching value signal to the alarm 2 and the pneumatic electromagnetic valve 3 according to the change of the liquid level height, and the alarm 2 sends an alarm after receiving an electric signal, so that an operator is reminded that the water level is too low and water needs to be added in time; after receiving the electric signal, the pneumatic electromagnetic valve 3 controls the power output device 4 to stop outputting power to the high-pressure water pump 5; thereby automatically closing the high-pressure water pump 5 and preventing the high-pressure water pump 5 from idling and damaging the high-pressure water pump 5.
In this embodiment, the liquid level switch 1 is a duckbill float switch, the duckbill float switch is disposed on the inner sidewall of the water tank 6, the installation position should be far away from the water inlet, otherwise, the duckbill float switch will malfunction due to fluctuation of the water inlet. When the water level in the water tank 6 is lower than the set water level of the duckbill float switch, the duckbill float switch generates a switch action, and sends electric signals of on or off to the alarm 2 and the power control mechanism respectively.
The power output device 4 is a broken shaft power takeoff, and the broken shaft power takeoff is connected with the high-pressure water pump 5 through a clutch plate. The chassis air pump generates air pressure to act on the clutch plate of the disconnected shaft power takeoff through the pneumatic electromagnetic valve 3, the pneumatic electromagnetic valve 3 switches the air path through the valve body after receiving the electric signal, and the air pressure acting on the clutch plate of the disconnected shaft power takeoff is disconnected, so that the disconnected shaft power takeoff stops outputting power to the high-pressure water pump 5; thereby automatically closing the high-pressure water pump 5 and preventing the high-pressure water pump 5 from idling and damaging the high-pressure water pump 5.
As shown in the schematic diagram of the low water level automatic water pump shut-down device in the utility model in fig. 3, the high pressure water pump 5 pumps water from the water tank 6 to the spraying device, the water level in the water tank 6 drops, when the water level in the water tank 6 drops below the set water level of the duckbill float switch, the duckbill float switch sends an electric signal to the alarm 2, and the alarm 2 sends an alarm after receiving the electric signal to remind people that the water level is too low and water needs to be added in time. Meanwhile, the duckbill type float switch sends an electric signal to the pneumatic electromagnetic valve 3, the pneumatic electromagnetic valve 3 switches an air passage through a valve body after receiving the electric signal, the air pressure acting on the clutch plate of the disconnected shaft power takeoff is disconnected, the clutch plate of the disconnected shaft power takeoff is separated, and the disconnected shaft power takeoff stops outputting power to the high-pressure water pump 5; thereby automatically closing the high-pressure water pump 5 and preventing the high-pressure water pump 5 from idling and damaging the high-pressure water pump 5. After receiving the alarm of the too low water level, the operator timely injects enough water into the water tank 6, the water level in the water tank 6 rises, and when the water level is higher than the set water level of the duckbill float switch, the duckbill float switch sends an electric signal to the alarm 2, and the alarm 2 is automatically closed after receiving the electric signal. Meanwhile, the duckbill type float switch sends an electric signal to the pneumatic electromagnetic valve 3, the pneumatic electromagnetic valve 3 receives the electric signal and then switches the gas path through the valve body, the pneumatic pressure acting on the clutch plate of the disconnected shaft power takeoff is communicated, the clutch plate of the disconnected shaft power takeoff is connected, the disconnected shaft power takeoff starts to output power to the high-pressure water pump 5, and the high-pressure water pump 5 automatically starts to work.
It is to be understood that the description is only one embodiment of the utility model and that various changes in the features and embodiments may be made by those skilled in the art or equivalents may be substituted without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims (4)

1. The utility model provides a low water level automatic shut-down water pump device, includes water pitcher (6) of storage clear water, communicates high-pressure water pump (5) with water pitcher (6) through the water intake pipeline, its characterized in that, water pitcher (6) inside is provided with liquid level switch (1) according to liquid level height output switching value signal, liquid level switch (1) are connected with alarm (2) and pneumatic solenoid valve (3) electricity respectively, low water level automatic shut-down water pump device still includes power take off (4) to high-pressure water pump (5) output power, pneumatic solenoid valve (3) are connected with power take off (4) through the gas circuit to through switching gas circuit control power take off (4) to high-pressure water pump (5) output power.
2. The low water level automatic shut-down water pump device according to claim 1, wherein the liquid level switch (1) is a duckbill float switch, the duckbill float switch is arranged on the inner side wall of the water tank (6), and after the water level in the water tank (6) is lower than the set water level, the duckbill float switch respectively sends an electric signal to the alarm (2) and the pneumatic electromagnetic valve (3).
3. The low water level automatic shut-down water pump device according to claim 2, wherein the power output device (4) is a broken shaft power takeoff, the broken shaft power takeoff is connected with the high pressure water pump (5) through a clutch plate, the pneumatic electromagnetic valve (3) switches a gas path through a valve body after receiving an electric signal, the air pressure acting on the clutch plate of the broken shaft power takeoff is disconnected, and the clutch plate of the broken shaft power takeoff is separated, so that the power connection with the high pressure water pump (5) is disconnected.
4. The low water level automatic shut-off water pump device according to claim 1, characterized in that the water inlet of the high pressure water pump (5) is connected with the water outlet at the bottom of the water tank (6) through a water inlet pipeline.
CN202322408684.6U 2023-09-06 2023-09-06 Automatic shut-off water pump device of low water level Active CN220667849U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322408684.6U CN220667849U (en) 2023-09-06 2023-09-06 Automatic shut-off water pump device of low water level

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322408684.6U CN220667849U (en) 2023-09-06 2023-09-06 Automatic shut-off water pump device of low water level

Publications (1)

Publication Number Publication Date
CN220667849U true CN220667849U (en) 2024-03-26

Family

ID=90339430

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202322408684.6U Active CN220667849U (en) 2023-09-06 2023-09-06 Automatic shut-off water pump device of low water level

Country Status (1)

Country Link
CN (1) CN220667849U (en)

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