CN213120748U - Water level detection device - Google Patents
Water level detection device Download PDFInfo
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- CN213120748U CN213120748U CN202022467302.3U CN202022467302U CN213120748U CN 213120748 U CN213120748 U CN 213120748U CN 202022467302 U CN202022467302 U CN 202022467302U CN 213120748 U CN213120748 U CN 213120748U
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Abstract
The utility model discloses a water level detection device for place and detect in a liquid pool the water level in liquid pool, including detection mechanism, detection mechanism includes floater, flexonics spare and controlling means, the floater passes through the flexonics spare and is connected with controlling means, and touching or leaving controlling means when the floater moves along with the water level for circuit switch-on or disconnection, the completion detects, still includes water pipe, one-way water valve and U type pipe, whole process, because stroke switch can not touch liquid, just can not receive the influence of liquid and produce the mistake and trigger, detection device can accurately detect the water level and exceed or be less than the assigned position.
Description
Technical Field
The utility model relates to a detection device especially indicates a water level detection device.
Background
The existing liquid pool water level detection device usually needs to detect the highest water level and the lowest water level of water storage, when the water level is between the lowest water level and the highest water level, a floating ball of the lowest water level and a circuit of a control mechanism and the like are all in water, the circuit is easy to wind due to the flowing of water, and when a lead or a resistance wire is immersed in the water for a long time, the corrosion can occur, so that the device is damaged and the detection is failed.
The original water level floating ball is not provided with a fixed shell, so that the floating ball is easy to float to other positions and cannot accurately touch the control mechanism, and the detection accuracy is influenced.
Disclosure of Invention
For solving above technical problem, the utility model provides a through U type pipe control floater position, can cause the characteristic in the one-way water route of water pressure and check valve through U type pipe and check valve for whole detection mechanism can not bubble the water level detection device of aquatic.
In order to achieve the technical purpose, the utility model adopts the following technical proposal;
a water level detection device is used for being placed in a liquid pool to detect the water level of the liquid pool, and comprises a detection mechanism, a U-shaped pipe, a one-way water valve and a water pipe, wherein the detection mechanism comprises a floating ball, a flexible connecting piece and a control device, the floating ball is connected with the control device through the flexible connecting piece, and when the floating ball moves along with the water level, the floating ball touches or leaves the control device, so that a circuit is connected or disconnected, and the detection is completed; the U-shaped pipe accommodates the detection mechanism and the one-way water valve, and is divided into an upper water level end and a lower water level end which are respectively provided with the detection mechanism; the one-way water valve is arranged at the bottom of the U-shaped pipe; the water pipe is used for water inlet and outlet of the water level detection device and is arranged at the upper water level end of the bottom of the U-shaped pipe; when the water level reaches the lower water level position, the one-way water valve works, and water flow can only pass from the lower water level to the upper water level in one way.
Further, the mounting position of the upper water level detection mechanism is higher than that of the lower water level detection mechanism.
Further, the control device is a travel switch.
Further, the water inlet/outlet of the liquid pool is controlled by a water pump; the control device at the lower water level end, the control device at the upper water level end and the water pump contactor form a circuit loop; the normally open contact of the water pump contactor is connected with the control device at the upper water level end to form self-protection of the water pump contactor; when the control device at the lower water level end is closed, the one-way water valve is powered off, and when the control device at the upper water level end is closed, the circuit is switched on, and the water pump starts to drain water.
Furthermore, an electromagnet is arranged in the valve core of the one-way water valve, when the electromagnet is electrified, the valve core is attracted to the bottom, and water flows in and out freely; when the electromagnet is powered off, the valve core is reset, and the water flow of the one-way water valve can only pass from the lower water level to the upper water level in one way.
Advantageous effects
Through the implementation of the scheme, when the water level reaches the lower water level, the lower water level floating ball touches the lower water level travel switch, the one-way water valve is powered off, the water flow can only flow to the upper water level from the lower water level, at the moment, the water level on the side of the upper water level continuously rises, the water pressure is high, and therefore, at the lower water level end, the water flow cannot flow to the upper water level, and the water level at the lower water level end is not changed; when the water level reaches the upper water level, the upper water level floating ball touches the upper water level travel switch, the circuit is completely switched on, the water pump starts to drain, and the water pump continuously drains water due to the self-protection characteristic of the contactor; when the water level of the upper water level end is lower than that of the lower water level end, the water flow flows from the lower water level end to the upper water level end, the lower water level travel switch is switched off, and the water pump stops draining. In the whole process, the travel switch cannot touch liquid, so that the travel switch cannot be influenced by the liquid to generate false triggering, and the detection device can accurately detect that the water level exceeds or is lower than a specified position.
Drawings
FIG. 1 is a schematic view illustrating an initial position of a water level detecting apparatus;
FIG. 2 is a schematic view of the water level detecting means when water drainage is started;
FIG. 3 is a schematic view of a one-way water valve when energized;
FIG. 4 is a schematic view of a one-way water valve when de-energized;
FIG. 5 is a schematic diagram of a control circuit of the water level detecting device;
description of the symbols:
the water level control device comprises a U-shaped pipe 1, a flexible connecting piece 2, a first floating ball 3, a lower water level end 4, a one-way water valve 5, a water pipe 6, an upper water level end 7, a second floating ball 8, an upper water level control device 9, a lower water level control device 10, an electromagnet 11, a live wire L, a zero line N, a lower water level travel switch K1., a drainage water pump contactor K2., an upper water level travel switch K3., a one-way water valve R1 and a common resistor R2.
Detailed Description
In the following, an embodiment of the present invention will be described in detail with reference to the drawings, but it should be understood that the scope of the present invention is not limited by the embodiment.
As shown in fig. 1-2, the water level detecting device is used for being placed in a water tank to detect the water level of the water tank, the water tank is provided with the highest water level and the lowest water level of stored water, when the water level of the stored water is higher than the highest water level, a drainage water pump of the water tank starts to work, and when drainage reaches the lowest water level, drainage is stopped; the water level detection device comprises a U-shaped pipe 1, a detection mechanism and a one-way water valve 5, wherein the U-shaped pipe 1 is divided into a lower water level end 4 and an upper water level end 7 which are respectively provided with the detection mechanism; the detection mechanism of the lower water level end comprises a flexible connecting piece 2, a first floating ball 3 and a lower water level control device 10, and the detection mechanism of the upper water level end comprises a flexible connecting piece 2, a second floating ball 8 and an upper water level control device 9; the upper water level control device 9 is higher than the lower water level control device 10 and respectively corresponds to the highest and lowest required water storage levels of the detected water pool; the first floating ball 3 and the second floating ball 8 are completely the same buoyancy balls and can keep floating on the water surface; the diameter of the U-shaped pipe 1 is larger than the first floating ball 3 and the second floating ball 8, and preferably, the difference value of the diameters is 20-30 mm; the upper water level control device 9 and the lower water level control device 10 are both travel switches and are connected with the first floating ball 3 and the second floating ball 8 through the flexible connecting piece 2, and when the water level rises or falls, the floating balls touch the travel switches to switch on a circuit.
The water level detection device comprises a water pipe 6 for water inlet and outlet of the water level detection device, and the water pipe 6 is arranged at an upper water level end 7 at the bottom of the U-shaped pipe 1.
As shown in fig. 1-4, the one-way water valve 5 is arranged at the bottom of the U-shaped pipe 1; an electromagnet 11 is arranged in the one-way water valve 5, when the electromagnet 11 is electrified, a valve core of the one-way water valve 5 is attracted to the bottom, a water flow passage is opened, and water can freely pass through the water flow passage; when the electromagnet 11 is powered off, the valve core is reset, and water flow can only flow from the water inlet of the lower water level end 4 to the water outlet of the upper water level end 7.
As shown in fig. 1-5, the normally open contact of the drainage water pump contactor K2 is connected in parallel with the two joints of the upper water level travel switch K3, so that the drainage water pump contactor K2 is self-protected; in an initial state, the water level is low, the first floating ball 3 and the second floating ball 8 are not contacted with the control device, the lower water level travel switch K1 and the upper water level travel switch K2 are in an off state, only the one-way water valve R1 and the common resistor R2 are in a circuit loop at the moment, the electromagnet 11 is electrified, and water can freely pass through the valve core; when the water level reaches the set lowest water storage level, the first floating ball 3 touches the lower water level control device 10, the lower water level travel switch K1 is closed, the one-way water valve R1 circuit is short-circuited, only the common resistor R2 is arranged in the circuit, the electromagnet 11 is powered off, the valve core is reset, water flow can only flow from the lower water level end 4 to the upper water level end 7, water is continuously stored towards the upper water level end 7 due to the fact that the water pipe 6 is filled with water, the water pressure of the upper water level end 7 in the U-shaped pipe 1 is higher than that of the lower water level end 4, therefore, the water flow cannot actively flow from the lower water pressure position to the high water pressure, the water level of the lower water level end 4 is fixed, and the lower water level control device 10; when the water level reaches the highest water storage level, the second floating ball 8 touches the upper water level control device 9, the upper water level travel switch K3 is closed, the drainage water pump contactor K2 is switched on, the drainage water pump starts drainage work, due to the self-protection effect, when the water level descends, the second floating ball 8 leaves the upper water level control device 9, the upper water level travel switch K3 is switched off, the drainage water pump contactor K2 is continuously switched on, and drainage is continued; when the water is drained to the lowest water level of the stored water, the water level of the upper water level end 7 is lower than that of the lower water level end 4, the water of the lower water level end 4 flows to the upper water level end 7 due to the water pressure, the first floating ball 3 leaves the lower water level control device 10, the lower water level travel switch K1 is switched off, the water drainage is stopped, and the circuit returns to the initial state.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention, and any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (5)
1. A water level detection device is used for being placed in a liquid pool to detect the water level of the liquid pool and comprises a detection mechanism, wherein the detection mechanism comprises a floating ball, a flexible connecting piece and a control device, the floating ball is connected with the control device through the flexible connecting piece, and when the floating ball moves along with the water level, the floating ball touches or leaves the control device, so that a circuit is connected or disconnected, and detection is completed; the one-way water valve is arranged at the bottom of the U-shaped pipe; the water pipe is used for water inlet and outlet of the water level detection device and is arranged at the upper water level end of the bottom of the U-shaped pipe; when the water level reaches the lower water level position, the one-way water valve works, and water flow can only pass from the lower water level to the upper water level in one way.
2. The water level detecting apparatus according to claim 1, wherein the upper water level detecting means is installed at a higher position than the lower water level detecting means.
3. The water level detecting apparatus according to claim 1, wherein the control means is a travel switch.
4. The water level detecting apparatus according to claim 1, wherein the inflow/outflow of water to/from the liquid pool is controlled by a water pump; the control device at the lower water level end, the control device at the upper water level end and the water pump contactor form a circuit loop; the normally open contact of the water pump contactor is connected with the control device at the upper water level end to form self-protection of the water pump contactor; when the control device at the lower water level end is closed, the one-way water valve is powered off, and when the control device at the upper water level end is closed, the circuit is switched on, and the water pump starts to drain water.
5. The water level detecting device according to claim 1, wherein an electromagnet is arranged in the valve core of the one-way water valve, when the electromagnet is electrified, the valve core is attracted to the bottom, and water flows in and out freely; when the electromagnet is powered off, the valve core is reset, and the water flow of the one-way water valve can only pass from the lower water level to the upper water level in one way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022467302.3U CN213120748U (en) | 2020-10-30 | 2020-10-30 | Water level detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022467302.3U CN213120748U (en) | 2020-10-30 | 2020-10-30 | Water level detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213120748U true CN213120748U (en) | 2021-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022467302.3U Active CN213120748U (en) | 2020-10-30 | 2020-10-30 | Water level detection device |
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|---|---|
| CN (1) | CN213120748U (en) |
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2020
- 2020-10-30 CN CN202022467302.3U patent/CN213120748U/en active Active
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