CN204359560U - Multifunctional Atmospheric Dust Reduction Automatic Sampler - Google Patents

Abstract

The utility model relates to a multifunctional automatic sampler for atmospheric dust fall, which comprises a box body, dust fall collecting tanks, a transmission device and a control circuit, and is characterized in that two dust fall collecting tanks are arranged in the box body side by side, and the top of the box body is provided with an upper cover which can move above the two dust fall collecting tanks and can be covered by interchanging; the transmission device is arranged in the box body, wherein two nylon ropes connected with the non-directional motor are respectively connected to two sides of the upper cover at the top of the box body. The utility model discloses constitute by rainwater induction controller, non-directional transmission, box, dust fall holding vessel, the rainwater inductor can send signal transmission for the controller automatically, and automatic acquisition rainwater when raining 5-10 seconds closes the collection that the dry dust falls the sample simultaneously, carries out the collection that the sample falls in the dry dust automatically when the rain stops back atmospheric humidity satisfies the sampling condition, closes the collection that the sample falls in the wet dust simultaneously. The sampling part of the multifunctional atmospheric dust fall automatic sampler consists of two dust fall collecting tanks, and the sampler can completely meet the monitoring requirements of departments such as atmosphere, hydrology, meteorology and the like.

Description

Multifunctional Atmospheric Dust Reduction Automatic Sampler

【Technical field】

The utility model relates to a sampler for atmospheric, hydrological and meteorological environment monitoring, in particular to a multifunctional automatic sampler for atmospheric dust fall which can automatically and real-time collect rainwater and atmospheric dust fall.

【Background technique】

Urban air pollution, sandstorms, and acid rain are currently very important and even urgent research topics. In order to measure wet dustfall in rainfall, sandstorm dustfall, and daily dustfall monitoring, most of the existing sampling methods are manual sampling, which is time-consuming and laborious. The sampler in the prior art is generally composed of three parts: a rain sensor, a sampling bucket, and an automatic opening and closing device. It cannot continuously collect dry dust and wet dust, and the rain sensor is in a static state when it is working. When it is on the detector or when a wet object falls on the detector, the control circuit also issues an instruction to open the device, resulting in wrong sample collection. At the same time, the existing sampling device has a complex structure, high precision requirements for parts processing and assembly, and high cost. It cannot continuously and regularly collect samples for rainwater dust fall, sandstorm dust fall, and daily dust fall. In addition, the existing samplers cannot automatically monitor online, and cannot understand the time changes of rainwater and dustfall (wet dustfall) (rainwater and dustfall changes with the time of rainfall), collect rainwater and dustfall, and collect rainwater and dustfall during heavy rain or for several consecutive days. Tanks will be filled with rainwater and will not be able to sample atmospheric dry dust fall over time.

【Content of utility model】

The purpose of this utility model is to overcome the deficiencies of the prior art, and provide a multifunctional atmospheric dust fall automatic sampler, the sampler is equipped with a rainwater induction controller, automatic switch cover device and dry dust fall, wet dust fall collection device , it can effectively judge rainwater and dew, and automatically collect dry and wet dust samples.

The solution adopted by the utility model for solving the above problems is to design a multifunctional atmospheric dust-reducing automatic sampler. It includes a box body, a dust collection tank, a transmission device and a control circuit. It is characterized in that two dust collection tanks are arranged side by side in the box, and the top of the box body is equipped with a Covered upper cover; said transmission device is installed in the box, wherein the two nylon ropes connected with the non-directional motor are respectively connected to the two sides of the upper cover on the top of the box.

The control circuit of the present utility model comprises a rain sensor (13), a rain sensor controller (12), a relay normally open switch (14) and a relay normally closed switch (16); when there is no rain, the relay in the control circuit is normally open The switch (14) connects the line (A) to make the non-directional motor (1) rotate forward or reversely; the rain sensor (13) sends a signal to the rain sensor controller (12) when it is raining, and the control circuit The relay normally closed switch (16) connects the circuit (B), so that the non-directional motor (1) rotates to the aforementioned opposite direction.

The beneficial effects of the utility model are: use the rain sensor to control the circuit work, can automatically collect rainwater when it rains for 5-10 seconds, and close the collection of dry dust samples at the same time, and automatically perform dry dust when the atmospheric humidity meets the sampling conditions after the rain stops The collection of the drop sample is turned off at the same time the collection of the wet dust drop sample is turned off. Therefore, it can automatically collect wet dustfall when it rains, and automatically collect atmospheric dustfall after the rain stops. It can effectively judge rainwater and dewdrops, automatically collect dry and wet dustfall samples, reduce the cost of the sampler, and control the circuit And the device with simple structural design of mechanical parts and easy processing of parts. The sampler can fully meet the needs of the monitoring work of the atmosphere, hydrology, meteorology and other departments.

【Description of drawings】

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a schematic diagram of the utility model control circuit;

Fig. 3 is a circuit schematic diagram of the rain sensor of the present invention.

Below in conjunction with embodiment of the utility model, describe in detail with reference to accompanying drawing.

【Detailed ways】

As shown in Fig. 1, the utility model is a kind of multifunctional atmospheric dust-falling automatic sampler, and it comprises non-directional motor (1), rainwater induction controller (12), casing (9), dust-falling collection tank (7), (8), travel switch (4), (6) and control circuit etc.

Described casing (9) is divided into right side (10), left side (11) two parts, (10) is used for atmospheric dustfall dry deposition sampling, (11) is used for atmospheric dustfall wet deposition sampling; The top is also provided with a travel switch on both sides of the moving stroke of the upper cover. When it rains, the upper cover moves to the right under the drive of the non-directional motor, and stops at the set position on the right side of the casing (10) when the travel switch (6) closes the motor power supply. When there is no rain, the upper cover moves to the left under the drive of the non-directional motor, and stops at the set position on the left side of the casing (11) when the travel switch (4) turns off the motor power supply.

The transmission device connects two coaxial runners on the motor shaft of the non-directional motor (1). When rotating, the connected nylon rope is wound or loosened on the runners. At the same time, the nylon rope is rotated around the pulley (2), pulling the upper The cover (3) moves left or right. In order to ensure the smooth movement of the upper cover, the nylon rope in the transmission needs to go around the pulleys located on both sides of the top of the box.

The dust collection tank is a cylindrical container without a cover. In the northern region, you can choose a cylindrical dust collection cylinder with an inner diameter of 15cm and a height of 30cm (plastic, ceramic, glass or stainless steel); in the southern region, you can choose a cylindrical dust collection cylinder with an inner diameter of 40cm and a height of 60cm. The dust collection tank (7) is used to collect wet dust, and the dust collection tank (8) is used to collect dry dust.

In the rain sensing controller (12), when there is no rain, the relay normally open switch (14) is disconnected, the line A is connected, the non-directional motor (1) is powered on, and the upper cover is moved to the left side of the box (11) , stop at the setting position on the left side of the casing (11) when running into the travel switch (4) and turning off the motor power supply. Now circuit (B) is connected, and when it rains, relay normally closed switch (16) is short-circuited, and circuit (B) is connected, and the non-directional motor (1) is powered on, and the upper cover is moved to the right side (10) direction of the box body. When running into travel switch (6) and turning off the motor power supply, stop at the set position on the right side (10) of the casing. the

The rain sensor controller (12) receives the signal sent by the rain sensor (13). When there is no rain, the normally open switch (14) of the relay is disconnected, and the normally closed switch (16) of the relay is short-circuited when it rains, (15) is a changeover contact, (18) is the anode of the working power supply of the sensor, and (19) is the working power supply of the sensor cathode.

The utility model can also set a timer to regularly collect atmospheric dry deposition or sandstorm dust fall of a certain period of time.

Claims (4)

1. A multifunctional atmospheric dust-falling automatic sampler, comprising a casing, a dust-falling collection tank, a transmission and a control circuit, is characterized in that two dust-falling collection tanks are arranged side by side in the described casing, and the top of the casing is provided with a Move and exchange the upper covers above the two dust collection tanks; the transmission device is installed in the box, and the two nylon ropes connected with the non-directional motor are respectively connected to both sides of the upper cover on the top of the box Described control circuit comprises rain sensor (13), rain sensor controller (12), relay normally open switch (14) and relay normally closed switch (16); When no rain, the relay normally open switch in the control circuit (14) Connect the circuit (A) to make the non-directional motor (1) forward or reverse; the rain sensor (13) sends a signal to the rain sensor controller (12) when it is raining, and the relay in the control circuit The normally closed switch (16) connects the circuit (B) to make the non-directional motor (1) rotate in the opposite direction. 2. The multifunctional automatic sampler for atmospheric dust reduction according to claim 1, characterized in that the top of the casing is respectively provided with a travel switch on both sides of the upper cover moving stroke. 3. The multifunctional automatic sampler for atmospheric dust reduction according to claim 1, characterized in that the nylon rope in the transmission device walks around the pulleys on both sides of the casing top. 4. The multifunctional atmospheric dust-fall automatic sampler according to claim 1, characterized in that the described dust-fall collection tank is a cylindrical container without a cover.