CN105510997B - A kind of rain meter - Google Patents

Abstract

The invention discloses a novel rain gauge, belonging to the technical field of rainwater treatment devices, which comprises a rain gauge outer cover; a water collecting bucket and a water collecting pipe are fixedly connected to the rain gauge outer cover; There is a solenoid valve connected to the bottom of the rain gauge; the solenoid valve can be opened or closed under the action of the rain sensor; a float switch is connected in the water collecting pipe; the rain gauge cover is also fixedly connected with a signal line connected to the control box. The invention is simple in structure, easy to install and use, can effectively control the abandonment flow of rainwater according to the initial rainfall of rainfall, and can realize the lift-type interception rubber check valve or lift-type flexible clapper for the abandonment well by combining the PLC controller The control of the door, through the use of this invention can improve the degree of automation of the abandoned flow well.

Description

A new type of rain gauge

technical field

The invention relates to a rain gauge, which belongs to the technical field of rain gauges, in particular to a new type of rain gauge which can control the opening or closing of the flap valve of an abandoned flow well according to the initial rainfall.

Background technique

The rain gauge is an instrument used by meteorologists and hydrologists to measure the precipitation in a certain area over a period of time. At present, the rain gauge is mainly composed of a water receiver (funnel), a water storage cylinder (outer cylinder), and a water storage bottle. There is a special measuring cup proportional to its caliber. The water receiver is generally set on the top of the rain gauge to collect rainwater into the funnel, and then the rainwater enters the metering device through the funnel.

A new type of rain gauge is disclosed in the Chinese Utility Model Patent Specification CN 203101666U. The device includes a cylinder, a base, a meter, a funnel, and a rain receiver. The base is arranged at the bottom of the cylinder, and the meter is arranged at Above the base, the funnel is connected above the meter, and the rain receiver is arranged above the funnel. It is characterized in that: a filter screen is embedded inside the top of the cylinder, and an insect-proof net is arranged in the middle of the rain receiver. Connecting plates are arranged on both sides of the insect-proof net. The utility model has the advantages that by arranging a layer of filter screen on the top of the water holder, sundries such as leaves can be effectively dropped into the water holder. A connecting plate is set between the insect-proof net and the water receiver, so that the insect-proof net is fixed on the water receiver by screws. When the insect-proof net is broken, it can be replaced without replacing the entire rain gauge, which saves costs. But this utility model can't control the abandonment flow of rainwater according to the real-time initial rainfall, therefore, it is not convenient to be used for the automatic control of the abandonment flow well.

An automatic rain gauge is disclosed in the Chinese utility model patent specification CN 203658605U, which includes that the automatic rain gauge includes a rain gauge body, a float, a pole, a magnet, a guide ring, and an automatic rain gauge display circuit, and the rain gauge is used to automatically display The circuit realizes automatic display of precipitation. The automatic rain gauge of the utility model has the advantages of simple structure, accurate counting, small data error and automatic display of rainfall. Although this utility model can only be used to display the rainfall size, it cannot effectively control the abandonment of rainwater by the initial rainfall in real time, so it is not convenient to be used for the automatic control of the flap gate or valve of the abandonment well.

In the Chinese utility model patent specification CN 204086586U, a high-precision intelligent rain gauge is disclosed, which includes a rain collecting bucket and a rain bucket. The rain collecting bucket is composed of a metal cylinder and a funnel at the top of the metal cylinder. The metal cylinder cover The rain barrel is a bottom-sealed drum made of plexiglass, and a differential pressure transmitter and a solenoid valve are installed on the rain barrel. A baffle for supporting the metal cylinder is provided on the rain barrel, the differential pressure transmitter and the solenoid valve are connected to a digital acquisition card, and the digital acquisition card is connected to a PC. Although the utility model has the advantages of simple structure, low production cost, accurate and fast data collection, short collection interval, and convenient use, it cannot effectively control the rainwater abandonment flow by real-time initial rainfall, so it is not convenient for use in waste disposal. Automatic control of flow well flap door or valve.

Contents of the invention

In view of the above-mentioned defects in the prior art, the technical problem to be solved by the present invention is to provide a new type of rain gauge, which not only has a simple structure, but also can accurately control the discarded flow of initial rainwater.

In order to solve the above technical problems, the present invention adopts such a new type of rain gauge, which includes a rain gauge cover; a water collection bucket and a water collection pipe are fixedly connected to the rain gauge cover; a rain sensor is fixed above the water collection bucket. A solenoid valve is connected to the bottom of the water collecting pipe; the solenoid valve can be opened or closed under the action of the rain sensor; a float switch is connected to the water collecting pipe; the rain gauge cover is also fixed There is a signal line connected to the control box.

In a preferred embodiment of the present invention, the float switch is connected to the inside of the water collection pipe through a connection plate and a height adjustment rod; the float switch is fixed on the connection plate; the height adjustment rod It is connected to the upper end of the water collecting pipe; the lower end of the height adjustment rod is fixedly connected to the connecting plate.

In a preferred embodiment of the present invention, an overflow pipe is also connected to the water collecting pipe; the water inlet of the overflow pipe is communicated with the water collecting pipe; the outlet of the overflow pipe is connected to the Below the solenoid valve.

In a preferred embodiment of the present invention, the signal line is connected to the control box to control the opening or closing of the lift-type shut-off rubber flap check valve or the lift-type flexible flap door of the abandonment well under the action of the rain sensor .

In a preferred embodiment of the present invention, a slag blocking net is arranged on the top of the water collecting bucket.

In a preferred embodiment of the present invention, the rain sensor includes a first rain sensor for controlling the solenoid valve and a second rain sensor for monitoring the entire rainfall process.

In a preferred embodiment of the present invention, the first rain sensor triggers the solenoid valve to close when rainfall occurs; when a rainfall does not reach the initial rainwater rainfall setting value, the rainfall ends, and the solenoid valve opens to empty the set Rainwater in pipes.

In a preferred embodiment of the present invention, when a rainfall reaches the initial rainfall, the float switch triggers the first rain sensor to be powered off and the second rain sensor to be powered on.

In a preferred embodiment of the present invention, the rain sensor is fixed above the water collecting bucket through an L-shaped rib.

The beneficial effects of the present invention are: the present invention is simple in structure, easy to install and use, can effectively control the abandoned flow of rainwater according to the initial rainfall of rainfall, and can realize the lifting type interception rubber flap stopper of the abandoned flow well by combining the PLC controller. The control of the return valve or the lifting flexible flap door can improve the automation degree of the abandoned flow well through the use of this invention.

Description of drawings

Fig. 1 is the structural representation of a kind of novel rain gauge of the present invention;

Fig. 2 is the initial state table of each element in the rain gauge of a kind of novel rain gauge of the present invention;

Fig. 3 is the flow chart of each element in the rain gauge of a kind of novel rain gauge of the present invention;

In the figure: 1-rain gauge cover; 2-rain sensor; 3-water collection bucket; 4-water collection pipe; 5-solenoid valve; 6-float switch; 7-signal line control box; 8-slag blocking net ; 6b-connecting plate; 6c-height adjustment rod.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

As can be seen from the structural schematic diagram of a new type of rain gauge shown in Figure 1, a new type of rain gauge of the present invention includes a rain gauge cover 1; the inside of the rain gauge cover 1 is sequentially fixed with a rain sensor 2 and a water collecting bucket from top to bottom. 3. The water collecting pipe 4 and the electromagnetic valve 5; the drain at the bottom of the water collecting bucket 3 communicates with the water collecting pipe 4; the drain at the bottom of the water collecting pipe 4 is provided with a solenoid valve 5; Open or close under the action of the water collecting pipe 4, which is provided with a float switch 6 for monitoring the initial rainwater rainfall; the float switch 6 is connected to the inside of the water collecting pipe 10a-4 through the connecting plate 6b and the height adjustment rod 6c; the float switch 6 is fixed on the connection plate 6b; the height adjustment rod 6c is connected to the upper end of the water collection pipe 4; the lower end of the height adjustment rod 6c is fixed to the connection plate 6b; the position of the float switch 6 in the water collection pipe can be adjusted by adjusting the height adjustment rod 6c Realize adjustment, and the rainfall control of initial rainfall is determined by the position of float switch 6. The rain gauge cover 1 is also fixedly connected to the control box 7 with a signal line connected to the PLC control box; the top of the water collecting bucket 3 is provided with a slag blocking net 8; The top of 7 is communicated with the overflow port on the side wall of water collecting pipe 4, and the bottom end of overflow pipe 7 is communicated with the drain outlet of electromagnetic valve 5 lower ends. There are two rain sensors 2 on the top of the rain gauge cover 1, which are the first rain sensor and the second rain sensor. The first rain sensor mainly triggers the opening of the solenoid valve by whether it rains or not and the amount of initial rainfall. and closed, the second rain sensor is mainly used to monitor the subsequent entire rainfall process to control the lift-type interception rubber disc check valve or lift-type flexible valve when the initial rainfall reaches the initial rainwater rainfall and triggers the float switch. The opening or closing of the door.

The working principle of the present invention is: when rainfall occurs, the initial state of each element in the rain gauge is as shown in Figure 2:

First, the first rain sensor senses the occurrence of rainfall, and the feedback signal is sent to the control box to close the solenoid valve, and at the same time, the rainwater flows into the water collection pipe through the water collecting bucket. If a rainfall does not reach the initial rainfall, the rainfall will end and the solenoid valve will open. , the program ends when the water in the water collection pipe is drained. If the rainfall in a single rainfall reaches the initial rainfall, the float switch is triggered, indicating that the initial rainfall has fallen, and the PLC starts to record the rainwater collection time. When it reaches After the rainwater time set according to the collection distance, the initial rainwater abandonment ends, and the lift-type closure rubber flap check valve or lift-type flexible flapper (electric or hydraulic) is closed to discharge the later rainwater to the natural water body. At this time, the first The second rain sensor will monitor the entire rainfall process. When the rainfall ends and the second rainfall begins, the recording interval should be as small as the set value (can be set according to the pollution), and it can be directly discharged without re-discarding. During this process When one or more rainfalls occur, the lift-type closure rubber flap check valve or lift-type flexible flap (electric or hydraulic) is closed, and the timing is restarted. When the rain stops each time during this process, the lift-type closure The rubber flap check valve or the lifting type flexible flap (electric or hydraulic) opens and starts to count again. When it is greater than the set value, the solenoid valve is opened to empty the water in the water collection pipe, and the flow is discarded again at the end of the program.

It should be understood that, the above description is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of Changes or substitutions should fall within the protection scope of the present invention.

Claims (5)

1. A novel rain gauge, comprising a rain gauge cover (1); a water collection bucket (3) and a water collection pipe (4) are fixedly connected in the rain gauge cover (1); it is characterized in that: the water collection bucket (3) a rain sensor (2) is fixedly connected above; a solenoid valve (5) is connected to the bottom of the water collecting pipe (4); open or close; the water collecting pipe (4) is connected with a float switch (6) for controlling the rain sensor (2); the rain gauge cover (1) is also fixedly connected with a signal wire to connect the control box (7); the signal line is connected to the control box (7) to control the opening or closing of the lift-type closure rubber flap check valve or the lift-type flexible flap door of the abandoned flow well under the action of the rain sensor (2); The rain sensor (2) includes a first rain sensor for controlling the solenoid valve and a second rain sensor for monitoring the entire rainfall process; the first rain sensor senses the occurrence of rainfall, and feeds back a signal to the signal line Connect the control box (7) to close the electromagnetic valve (5). If a rainfall does not reach the initial rainwater rainfall setting value, the rainfall ends, and the electromagnetic valve (5) is opened to empty the water collecting pipe (4). If the amount of rainfall in a single rainfall reaches the initial rainfall, the initial rainwater abandonment will end, and the lift-type closure rubber flap check valve or lift-type flexible valve will be closed, so that the later rainwater will be discharged to the natural water body. The switch (6) triggers the power off of the first rain sensor and the power on of the second rain sensor to start recording the rainwater collection time. When the rainwater time set according to the collection distance is reached, the initial rainwater abandonment ends and the lifting type closure is closed The rubber flap check valve or the lifting flexible flap door can discharge the later rainwater to the natural water body; the second rain sensor monitors the whole rainfall process from the end of the rainfall to the beginning of the second rainfall, when the end of the rainfall to the beginning of the second rainfall, if The recording interval time is less than the set value, and the direct discharge does not need to be discarded again. When one or more rainfalls occur between the end of the rainfall and the beginning of the second rainfall, the lift-type closure rubber disc check valve or the lift-type flexible flap is closed and restarted. Timing, when the rain stops each time during this process, the lifting type closure rubber flap check valve or the lifting type flexible flap door is opened, and the timing is started again; if the recording interval time is greater than the set value, the electromagnetic valve is opened (5) Empty the water in the water collecting pipe (4), and discard the flow again at the end of the program. 2. A new type of rain gauge according to claim 1, characterized in that: the float switch (6) is connected to the inside of the water collecting pipe (4) through a connecting plate (6b) and a height adjustment rod (6c) The float switch (6) is fixedly connected to the connecting plate (6b); the height adjustment rod (6c) is connected to the upper end of the water collection pipe (4); the lower end of the height adjustment rod (6c) It is fixedly connected with the connecting plate (6b). 3. A novel rain gauge according to claim 1, characterized in that: an overflow pipe is also connected to the water collecting pipe (4); the water inlet of the overflow pipe is connected to the water collecting pipe (4) communicated; the drain of the overflow pipe is connected below the electromagnetic valve (5). 4. A new type of rain gauge according to claim 1, characterized in that: the top of the water collecting bucket (3) is provided with a slag blocking net (8). 5. A new type of rain gauge according to claim 1, characterized in that: the rain sensor (2) is fixed above the water collecting bucket (3) through an L-shaped rib.