A self-pressurized small water volume measuring device

Abstract

The invention discloses a self-pressurized micro-water volume measuring device, comprising a water storage part and a drainage part, the water storage part comprises a water storage tank, the top of the water storage tank is provided with a water inlet, the bottom is provided with a water outlet, the drainage part is connected to the bottom of the water storage tank, the drainage part comprises a control module and a water pump connected to the water outlet, the drainage outlet of the water pump is connected with a flow detection component, the bottom of the water storage tank is provided with a first float and a timing switch, the timing switch and the water pump are both electrically connected to the control module, the first float floats up to trigger the timing switch, the timing switch is used to start the water pump after the rated timing time, and an anti-overflow switch component is also provided in the water storage tank. The invention can automatically and continuously measure micro-water volume under normal pressure, accurately measure all the water volumes by introducing the flowing water into the instrument, and no manual operation is required during the measurement process, which not only reduces the manual workload, but also avoids the influence of manual observation on the results.

Description

Technical Field

[0001] The invention relates to the technical field of measuring tools, and in particular to a self-pressurized tiny water volume measuring device. Background Art

[0002] In scientific research such as ecology and hydrology, it is necessary to measure the amount of water in small-area control tests such as surface runoff and small catchment areas. This small amount of water increases with the increase of precipitation, but it is not continuous and irregular. At present, one way to measure this amount of water is to set up a flow measuring weir to measure it, and convert it into a total flow rate based on the water level recorded by the water level gauge or the manually observed head height. Affected by the fluctuation of the water flow, the accuracy is generally not high, and the conversion formula is derived from empirical values, which also has certain errors. Manual calculation is also required in the later stage, which increases the workload. Another way is to measure through a water meter, but the water flow must have a certain pressure. Therefore, there is an urgent need for a small water volume measurement device that can automatically and continuously observe under normal pressure and ensure data accuracy. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a self-pressurized small water volume measuring device.

[0004] To achieve the above object, the technical solution of the present invention is:

[0005] A self-pressurized micro-water volume measuring device comprises a water storage part and a drainage part, wherein the water storage part comprises a water storage tank, a water inlet is provided at the top of the water storage tank, and a water outlet is provided at the bottom, wherein the drainage part is connected to the bottom of the water storage tank, wherein the drainage part comprises a control module and a water pump connected to the water outlet, wherein the drainage outlet of the water pump is connected to a flow detection component, wherein a first float and a timing switch are provided at the bottom of the water storage tank, wherein the timing switch and the water pump are both electrically connected to the control module, wherein the timing switch is triggered when the first float floats up, wherein the timing switch is used to start the water pump after the rated timing time, and an anti-overflow switch component is also provided in the water storage tank.

[0006] Furthermore, the timing switch is a normally closed switch and is arranged at the bottom of the water storage tank, and the first float is arranged at the bottom of the water storage tank and pressed on the timing switch.

[0007] Furthermore, the anti-overflow switch assembly includes a second float and a reed switch arranged at the top of the water storage tank, the reed switch is electrically connected to the control module, the reed switch is used to start the water pump, and the floating of the second float triggers the operation of the reed switch.

[0008] Furthermore, a tank cover is provided on the top of the water storage tank, the tank cover is sealed to the water storage tank, the reed switch and the water inlet are both arranged on the tank cover, and a float-type exhaust port is also provided on the tank cover.

[0009] Furthermore, a level bubble is provided on the tank cover.

[0010] Furthermore, the flow detection component includes a flow sensor and a high-speed counter. The flow sensor is arranged at the drain outlet of the water pump. The high-speed counter is electrically connected to the flow sensor to display the flow value.

[0011] Furthermore, a flow-stopping component for preventing water in the water storage tank from seeping out is also provided at the drain outlet of the water pump.

[0012] Furthermore, the flow-stop assembly includes a heavy hammer type water-stop valve.

[0013] Furthermore, the flow detection component also includes a high-speed counter reset switch for resetting the high-speed counter reading.

[0014] Furthermore, an aviation waterproof joint is provided on the drainage part.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] The present invention can automatically and continuously measure tiny amounts of water under normal pressure. By introducing flowing water into the instrument, all flowing water volumes can be accurately measured. No manual operation is required during the measurement process, which not only reduces manual workload, but also avoids the influence of manual observation on the results. At the same time, the instrument of the present invention can also ensure the accuracy of the measurement results, and provide accurate water volume data for scientific research such as ecology and hydrology. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the self-pressurized micro-water volume measuring device;

[0018] Explanation of the reference numerals: 1. Water storage part; 11. Water storage tank; 12. Water inlet; 13. Water outlet; 14. Level bubble; 15. Float-type exhaust port; 2. Drainage part; 21. Water pump; 22. Control module; 3. First float; 4. Timing switch; 5. Second float; 6. Reed switch; 71. Flow sensor; 72. High-speed counter; 73. High-speed counter reset switch; 8. Heavy hammer type water stop valve; 9. Aviation waterproof connector. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] Example

[0023] like Figure 1 As shown, a self-pressurized micro-water volume measuring device includes a water storage part 1 and a drainage part 2. The water storage part 1 includes a water storage tank 11. The top of the water storage tank 11 is provided with a water inlet 12, and the bottom is provided with a water outlet 13. The drainage part 2 is connected to the bottom of the water storage tank 11. The drainage part 2 includes a control module 22 and a water pump 21 connected to the water outlet 13. The drainage port of the water pump 21 is connected to a flow detection component. The bottom of the water storage tank 11 is provided with a first float 3 and a timing switch 4. The timing switch 4 and the water pump 21 are both electrically connected to the control module 22. When the first float 3 floats up, the timing switch 4 is triggered to start the timing. The timing switch 4 is used to start the water pump 21 after the rated timing time. An anti-overflow switch component is also provided in the water storage tank 11.

[0024] Specifically, the water tank 11 is mainly used to store undrained water. The first float 3 is set at the bottom of the water tank 11. The timing switch 4 can be set at the bottom of the water tank 11 and pressed down by the gravity of the first float 3 to form a normally closed state. When the amount of water in the water tank 11 reaches a certain amount, the first float 3 floats up due to the buoyancy of the water, thereby releasing the pressure on the timing switch 4 and triggering the timing of the timing switch 4. When the timing ends, the control module 22 controls the water pump 21 to start, pump out the water inside the water tank 11, and calculate the flow rate.

[0025] The triggering method of the first float 3 and the timer switch 4 described in this embodiment is not unique, and can also be realized by using the first float 3 to contact and press the timer switch 4 when floating up to start the timing. As a preferred solution of this embodiment, it can optimize the triggering conditions of the device. The amount of water in the water tank 11 required for the first float 3 to float up to press the timer switch 4 is different from the amount of water in the water tank 11 required for the first float 3 to float up and leave the timer switch 4, which can effectively reduce the timing error. When the timer switch 4 is triggered, its preset rated time can be 60s, 120s, or 180s, and 120s is specifically used in this embodiment.

[0026] In one embodiment, the anti-overflow switch assembly includes a second float 5 and a reed switch 6 arranged at the top of the water tank 11. The reed switch 6 is electrically connected to the control module 22. The reed switch 6 is used to start the water pump 21. The floating of the second float 5 triggers the operation of the reed switch 6.

[0027] Specifically, the second float 5 and the reed switch 6 are mainly set to prevent the water in the water tank 11 from being excessive. When the water in the water tank 11 reaches a certain level, the second float 5 will float up and contact the reed switch 6 to trigger the water pump 21 to start. Similar to the setting of the first float 3, the second float 5 also has two settings, but the setting of the second float 5 is different from that of the first float 3. In this embodiment, the water pump 21 is started by pressing the reed switch 6 when floating up. This setting can ensure that the device is in normal operation mode as much as possible. The normal operation of the device should be that after the timing switch 4 is timed, the drainage pump is started to drain water. The floating press trigger method can delay the start of the overflow switch assembly as much as possible.

[0028] In one embodiment, a tank cover is provided on the top of the water tank 11, the tank cover is sealed to the water tank 11, the reed switch 6 and the water inlet 12 are both provided on the tank cover, and a float-type exhaust port 15 is also provided on the tank cover.

[0029] Specifically, a tank cover is provided on the top of the water tank 11, so that the interior of the water tank 11 can be easily opened to process the internal parts. The tank cover and the water tank 11 are sealed and connected, which can effectively prevent the water in the water tank 11 from seeping out from the gap. The reed switch 6 is arranged on the tank cover, and the second float 5 can also be arranged on the tank cover. The two cooperate with each other to start the water pump 21 for drainage. At the same time, a float-type exhaust port 15 is also provided on the tank cover, which can discharge the air in the water tank 11 to avoid affecting the normal operation of the second float 5.

[0030] In one embodiment, a level bubble 14 is provided on the tank cover.

[0031] Specifically, the main function of the level bubble 14 is to monitor whether the device is placed horizontally. If the device is placed tilted, it is very likely to affect the normal operation of the second float 5. Therefore, when the tank cover is normally set, the level bubble 14 can well judge the placement of the device, which is conducive to the normal operation of the device.

[0032] In one embodiment, the flow detection component includes a flow sensor 71 and a high-speed counter 72. The flow sensor 71 is disposed at the drain outlet of the water pump 21. The high-speed counter 72 is electrically connected to the flow sensor 71 to display the flow value.

[0033] Specifically, the flow detection component is mainly used to detect the amount of water discharged by the drainage pump. By utilizing the connection setting of the flow sensor 71 and the high-speed counter 72, the amount of water discharged by the drainage pump is converted into an electrical signal through the flow sensor 71, and the electrical signal is transmitted to the high-speed counter 72. The electrical signal is then converted into a display digital display by the high-speed counter 72, thereby realizing the function of flow digitization.

[0034] In one embodiment, a flow-stop component is further provided at the drain outlet of the water pump 21 for preventing water in the water storage tank 11 from seeping out. The flow-stop component includes a heavy hammer type water-stop valve 8.

[0035] Specifically, the function of the flow-stop component is mainly to prevent the water in the water storage tank 11 from seeping out. When the water pump 21 is not working, the water in the water storage tank 11 may still flow through the water pump 21 and seep out from the drain port of the water pump 21, thereby affecting the accuracy of flow detection. In this embodiment, the flow-stop component specifically adopts a heavy hammer type water-stop valve 8. In addition to the heavy hammer type water-stop valve 8, a digital control device such as an electromagnetic valve can also be used for setting. The advantage of using a heavy hammer type water-stop valve 8 is that no additional electronic control is required, which reduces the complexity of the circuit of the device. When using a heavy hammer type water-stop valve 8, during the normal water storage process, the water flow pressure is relatively small, and it is difficult to flush the heavy hammer type water-stop valve 8. When the water pump 21 is started, the water flow pressure increases sharply, thereby flushing the heavy hammer type water-stop valve 8, so that the water flow can flow out smoothly.

[0036] The weight-type water-stop valve 8 specifically comprises an upper fold drainage channel and a flat fold drainage channel. The flat fold drainage channel is connected to the middle part of the upper fold drainage channel. A weight is arranged inside the upper fold drainage channel. The weight fits against the inner wall of the upper fold drainage channel. An exhaust port is arranged at the top of the upper fold drainage channel. When the water pressure pushes the weight, if the water pressure is large enough, the weight will be pushed upward to connect the flat fold drainage channel with the upper fold drainage channel. If the water pressure is insufficient, the weight will close the connection between the flat fold drainage channel and the upper fold drainage channel.

[0037] In one embodiment, the flow detection assembly further comprises a high-speed counter reset switch 73 for resetting the reading of the high-speed counter 72. An aviation waterproof connector 9 is provided on the drainage portion 2.

[0038] Specifically, the high-speed counter reset switch 73 is set at the bottom of the drainage part 2, specifically next to the high-speed counter 72, which can be easily controlled. The aviation waterproof connector 9 is mainly used for external 12V power supply and output pulse signal for data transmission. The waterproof connector setting can effectively avoid the problem of circuit failure caused by water.

[0039] The present invention can automatically and continuously measure tiny amounts of water under normal pressure. By introducing flowing water into the instrument, all flowing water volumes can be accurately measured. No manual operation is required during the measurement process, which not only reduces manual workload, but also avoids the influence of manual observation on the results. At the same time, the instrument of the present invention can also ensure the accuracy of the measurement results, and provide accurate water volume data for scientific research such as ecology and hydrology.

[0040] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable ordinary technicians in the field to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made based on the essence of the content of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-pressurized micro water volume measuring device, characterized in that: The invention comprises a water storage part (1) and a drainage part (2), wherein the water storage part (1) comprises a water storage tank (11), the top of the water storage tank (11) is provided with a water inlet (12), and the bottom is provided with a water outlet (13), the drainage part (2) is connected to the bottom of the water storage tank (11), the drainage part (2) comprises a control module (22) and a water pump (21) connected to the water outlet (13), the drainage outlet of the water pump (21) is connected to a flow detection component, the bottom of the water storage tank (11) is provided with a first float (3) and a timing switch (4), the timing switch (4) and the water pump (21) are both electrically connected to the control module (22), the first float (3) triggers the timing switch (4) to start timing when floating up, the timing switch (4) is used to start the water pump (21) after the rated timing time, and an anti-overflow switch component is also provided in the water storage tank (11); The timing switch (4) is a normally closed switch and is arranged at the bottom of the water storage tank (11); the first float (3) is arranged at the bottom of the water storage tank (11) and is pressed on the timing switch (4); The anti-overflow switch assembly comprises a second float (5) and a reed switch (6) arranged at the top of the water storage tank (11); the reed switch (6) is electrically connected to the control module (22); the reed switch (6) is used to start the water pump (21); the second float (5) floats up to trigger the reed switch (6) to operate.

2. The self-pressurized micro water volume measuring device according to claim 1, characterized in that: A tank cover is provided on the top of the water storage tank (11), the tank cover is sealedly connected to the water storage tank (11), the reed switch (6) and the water inlet (12) are both arranged on the tank cover, and a float-type exhaust port (15) is also provided on the tank cover.

3. The self-pressurized micro water volume measuring device according to claim 2, characterized in that: The tank cover is provided with a level bubble (14).

4. The self-pressurized micro water volume measuring device according to claim 1, characterized in that: The flow detection component comprises a flow sensor (71) and a high-speed counter (72); the flow sensor (71) is arranged at the drain outlet of the water pump (21); and the high-speed counter (72) is electrically connected to the flow sensor (71) to display the flow value.

5. The self-pressurized micro water volume measuring device according to claim 4, characterized in that: A flow-stopping component for preventing water in the water storage tank (11) from seeping out is also provided at the water outlet of the water pump (21).

6. The self-pressurized micro water volume measuring device according to claim 5, characterized in that: The flow-stop assembly comprises a heavy hammer type water-stop valve (8).

7. The self-pressurized micro water volume measuring device according to claim 4, characterized in that: The flow detection assembly further comprises a high-speed counter (72) reset switch for resetting the reading of the high-speed counter (72).

8. The self-pressurized micro water volume measuring device according to claim 1, characterized in that: The drainage portion (2) is provided with an aviation waterproof joint (9).

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