Rain and snow water automatic sampling equipment for environmental monitoring

Abstract

The invention discloses automatic rain and snow water sampling equipment for environmental monitoring, and belongs to the technical field of rain and snow water collection, the automatic rain and snow water sampling equipment comprises a sampling box body, a dome is arranged at the top of the sampling box body, a cleaning device is arranged at the bottom, located in the sampling box body, of the dome, and a water collecting tank is arranged on the outer periphery of the top of the sampling box body; a plurality of water outlet holes are formed in the outer side wall of the water collecting tank, a sliding groove with an opening in the top is formed in the outer side wall of the water collecting tank, and a vertical plate is slidably arranged in the sliding groove; a plurality of detection devices are arranged on the inner side wall of the sampling box body and are connected with the electric control cabinet; an iris switch is arranged at the position, below the detection device, in the sampling box body, a funnel-shaped water outlet hopper is arranged below the iris switch, and a plurality of electric heating devices are arranged in the side wall of the water outlet hopper; a sampling device is arranged at the bottom of the water outlet hopper. The device can realize efficient and pollution-free automatic collection operation of rain and snow water, can also realize self-cleaning, and realizes automatic sampling operation.

Description

Technical Field

[0001] The invention relates to the technical field of rain and snow water collection, and in particular to an automatic rain and snow water sampling device for environmental monitoring. Background Art

[0002] Hydrological monitoring refers to a complex and comprehensive system engineering that uses scientific methods to monitor, measure, analyze and warn the temporal and spatial distribution and change patterns of water in nature. The monitoring content includes: water level, flow, flow rate, rainfall (snow), evaporation, sediment, ice, soil moisture, water quality, etc. Among them, precipitation observation is a dynamic input project for studying the hydrological cycle system of a basin or region. It is one of the most important basic data for water resources and plays a great role in industrial and agricultural production, water conservancy development, river flood control and engineering management. Precipitation observation is the observation and recording of the amount of liquid (rain) and solid (snow, hail) water falling from the sky. The rain gauge is an instrument for directly observing precipitation. It consists of a rain receiver, a funnel, a water storage bottle and a rain gauge. The existing rain gauge has the following disadvantages: when receiving rainwater in windy and rainy weather, some impurities such as fallen leaves may be collected together; when collecting snow water, due to the low temperature, there is a problem of low collection efficiency; the equipment cleaning process is cumbersome and inconvenient. Based on the above problems, the present invention proposes an automatic sampling device for rain and snow water for environmental monitoring. Summary of the invention

[0003] The purpose of the present invention is to provide an automatic rain and snow water sampling device for environmental monitoring to solve the above-mentioned problems.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] The present invention discloses an automatic sampling device for rain and snow water for environmental monitoring, comprising a sampling box, a plurality of symmetrically distributed supporting legs are arranged at the bottom of the sampling box, a walking trolley is arranged at the bottom of the supporting legs; a dome is arranged at the top of the sampling box, a cleaning device is arranged at the bottom of the dome located inside the sampling box, a water collecting trough is arranged around the top of the sampling box, and the outer edge of the dome is located above the water collecting trough; a plurality of water outlet holes are arranged on the outer side wall of the water collecting trough, a sliding groove with a top opening is arranged inside the outer side wall of the water collecting trough, a vertical plate is slidably arranged in the sliding groove, and a plurality of push plates are equidistantly arranged on the upper outer side wall of the vertical plate. Pull rod, a cylinder is arranged at the bottom of the push-pull rod, and the fixed end of the cylinder is fixedly arranged on the outer wall of the slide slot; a plurality of detection devices are arranged on the inner wall of the sampling box body, and the signal transmission end of the detection device is connected to the electric control cabinet after passing through the sampling box body; an iris switch is arranged in the sampling box body at a position below the detection device, and a funnel-shaped water outlet hopper is located below the iris switch, and a plurality of electric heating devices are arranged in the side wall of the water outlet hopper, and the electric heating device is electrically connected to a battery, and the battery is fixedly arranged on the inner wall of the supporting leg, and the battery stores electricity through a solar device; a sampling device is arranged at the bottom of the water outlet hopper.

[0006] Furthermore, the dome includes a support tube at the bottom, and a top cover matching the support tube is arranged on the upper part of the support tube; a hinged ear plate 1 is arranged on the upper end surface of the support tube, and a hinged ear plate 2 matching the hinged ear plate 1 is arranged on the upper end surface of the top cover, and the hinged ear plate 1 and the hinged ear plate 2 are hingedly connected together via a hinge shaft.

[0007] Furthermore, a handle is provided on the upper end surface of the top cover, and a square opening is provided on an end of the upper end surface of the top cover away from the handle, and the square opening is hingedly connected to the skylight via a hinge.

[0008] Furthermore, the articulated shaft is connected to a reduction motor for driving the articulated shaft to rotate.

[0009] Furthermore, the cleaning device includes a round support arranged at the bottom of the dome, and a plurality of inwardly inclined braces are arranged on the circumference of the inner wall of the round support, and the other end of the inclined support is fixedly connected to a pipe sleeve, a pipeline is arranged in the pipe sleeve, and a plurality of inclined tubes are arranged on the bottom circumference of the pipeline, and a nozzle is arranged at the end of the inclined tube; the upper part of the pipeline is connected to a bent pipe, the bent pipe is connected to a water inlet pipe, and the water inlet pipe is connected to an external deionized water network.

[0010] Furthermore, the bottom of the water outlet is inclined downward.

[0011] Furthermore, a plurality of ribs are provided between the bottom of the chute and the outer side wall of the sampling box.

[0012] Furthermore, the vertical plate has a ring-shaped structure.

[0013] Furthermore, the iris switch includes an upper plate fixedly arranged together with the inner wall of the sampling box, and the center of the upper plate is an open hole structure; a lower ring matching the upper plate is slidably arranged below the upper plate, and a plurality of arc grooves are equidistantly arranged on the circumference of the lower ring, and a plurality of limit blocks matching the arc grooves are slidably arranged in the arc grooves, and the limit blocks are fixedly arranged on the upper plate; hinge blocks with the same number as the arc grooves are arranged on the inner wall of the lower ring, and the hinge blocks are hingedly connected to the blades through hinge rods, and the ends of the blades away from the hinge rods are hingedly connected to the upper plate; a rotating rod is arranged on the outer wall of the lower ring, and the rotating rod is located outside the sampling box after passing through the sampling box.

[0014] Furthermore, the solar device includes an inclined solar panel, a support frame is provided on the back of the solar panel, a clamp is provided at one end of the support frame away from the solar panel, an n-type mounting frame is clamped in the clamp, a fixed mounting plate is provided at the end of the n-type mounting frame, and the fixed mounting plate is set on the outer wall of the sampling box and the support leg through a bolt assembly.

[0015] Compared with the prior art, the beneficial technical effects of the present invention are:

[0016] The automatic sampling equipment for rain and snow water used for environmental monitoring of the invention can avoid contamination during the sample collection process by lifting the vertical plate under the action of the cylinder; and a cleaning device is installed inside the sampling box, which can realize self-cleaning of the inside of the sampling box without disassembly, thereby improving efficiency; when collecting samples on snowy days, the electric heating device melts the snow and turns it into water, thereby improving sampling efficiency; and during the collection process, the opening and closing of the top cover of the dome can be realized by electric control, that is, remote control requirements are met; when collecting samples, they can be tested on site at the first time. In short, the present invention can realize the efficient and pollution-free automatic collection of rain and snow water, and can also self-clean, thereby realizing the automatic operation of sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] Figure 1 It is a partial cross-sectional view of the automatic sampling device for rain and snow water used for environmental monitoring of the present invention;

[0019] Figure 2 This is a schematic diagram of the dome structure;

[0020] Figure 3is the enlarged view of A;

[0021] Figure 4 It is a schematic diagram of the cleaning device structure;

[0022] Figure 5 This is the front view of the cleaning device;

[0023] Figure 6 This is a schematic diagram of the installation structure of the cleaning device;

[0024] Figure 7 is a schematic diagram of the iris switch structure;

[0025] Figure 8 It is an enlarged view of B;

[0026] Fig. 9 It is a schematic diagram of the structure of a solar energy device;

[0027] Description of reference numerals: 1. sampling box; 2. dome; 3. cleaning device; 4. testing equipment; 5. electric control cabinet; 6. iris switch; 7. water outlet bucket; 8. sampling device; 9. electric heating device; 10. battery; 11. solar device; 12. supporting leg; 13. walking trolley; 14. water collecting trough; 15. water outlet hole; 16. chute; 17. vertical plate; 18. push-pull rod; 19. cylinder; 20. rib plate;

[0028] 201, support tube; 202, top cover; 203, hinged ear plate 1; 204, hinged ear plate 2; 205, hinge axis; 206, handle; 207, hinge; 208, skylight;

[0029] 301, round support; 302, oblique support; 303, pipe sleeve; 304, oblique pipe; 305, elbow; 306, water inlet pipe; 307, nozzle;

[0030] 601, upper plate; 602, lower ring; 603, arc groove; 604, limit block; 605, hinge block; 606, hinge rod; 607, blade; 608, rotating rod;

[0031] 1101, solar panel; 1102, support frame; 1103, n-type mounting frame; 1104, fixed mounting plate; 1105, clamp. DETAILED DESCRIPTION

[0032] like Figure 1As shown, an automatic sampling device for rain and snow water for environmental monitoring includes a sampling box 1, a plurality of symmetrically distributed supporting legs 12 are installed at the bottom of the sampling box 1, and a walking trolley 13 is installed at the bottom of the supporting legs 12. Specifically, the supporting legs 12 can adopt a telescopic structure according to actual needs, and by raising the height, the pollution of the surrounding environment to the sampling process is avoided to ensure the sampling quality; the walking trolley 13 can conveniently push the equipment to walk, improve convenience, and reduce the labor intensity of some operators.

[0033] like Figure 1 , 2 As shown, a dome 2 is installed on the top of the sampling box 1, and the dome 2 includes a support tube 201 located at the bottom, and a top cover 202 matching it is installed on the upper part of the support tube 201. A hinged ear plate 1 203 is installed on the upper end surface of the support tube 201, and a hinged ear plate 204 matching the hinged ear plate 1 203 is installed on the upper end surface of the top cover 202. The hinged ear plate 1 203 and the hinged ear plate 204 are hingedly connected together through a hinge shaft 205. A sealing ring matching the sampling box 1 is provided at the bottom of the support tube 201, which not only plays a sealing role, but also can realize the shock absorption and silencing functions when opening and closing, thereby extending the service life.

[0034] Specifically, a handle 206 is installed on the upper end surface of the top cover 202, and the handle 206 can be used to manually open the top cover 202; in addition, the hinge shaft 205 is connected to a reduction motor for driving its rotation, and the reduction motor can be remotely controlled to achieve automatic opening and closing operations of the top cover 202, thereby reducing the labor intensity of operators and improving the degree of automation of the sampling process.

[0035] A square opening is provided on the upper end surface of the top cover 202 at one end away from the handle, and the square opening is hingedly connected to a skylight 208 via a hinge 207. The skylight 208 is in a normally closed state. When the equipment needs to be cleaned, the skylight can be opened to allow external deionized water to enter the interior for cleaning.

[0036] like Figure 3As shown, a water collecting trough 14 is installed around the top outer periphery of the sampling box 1, and the outer edge of the dome 2 is located above the water collecting trough 14. A plurality of water outlet holes 15 are provided on the outer wall of the water collecting trough 14. With such a design, during the sampling process, excess rainwater falls into the water collecting trough 14 below along the outer edge of the dome 2, and is finally discharged from the water outlet holes 15. The bottom of the water outlet holes 15 is installed at an angle downward to improve the efficiency of rainwater discharge. A chute 16 with a top opening is provided in the outer wall of the water collecting trough 14, and a vertical plate 17 is slidably installed in the chute 16, and the vertical plate 17 is an annular structure. A plurality of push-pull rods 18 are equidistantly installed on the upper outer wall of the vertical plate, and a cylinder 19 is installed at the bottom of the push-pull rod 18, and the fixed end of the cylinder 19 is fixedly installed on the outer wall of the chute 16. The cylinder 19 is activated to realize that the push-pull rod 18 drives the vertical plate 17 to move up and down. When moving up, a retaining ring structure is formed to block some external impurities, thereby avoiding contamination during the sampling process and improving the quality of the sample.

[0037] A plurality of ribs 20 are installed between the bottom of the slide groove 16 and the outer side wall of the sampling box 1 to provide auxiliary support.

[0038] like Figure 1 , 4 As shown in Figures 5 and 6, a cleaning device 3 is installed at the bottom of the dome 2 located in the sampling box 1. The cleaning device 3 includes a round support 301 installed at the bottom of the dome 2, and a plurality of inwardly inclined supports 302 are installed on the inner wall of the round support 301. The other end of the inclined support 302 is fixedly connected to a pipe sleeve 303. The space between the round support 301, the inclined support 302 and the pipe sleeve 303 forms a funnel-shaped structure, which not only provides stable support but also facilitates installation. A pipeline is installed in the pipe sleeve 303, and a plurality of inclined pipes 304 are installed on the bottom circumference of the pipeline. A nozzle 307 is installed at the end of the inclined pipe 304; the upper part of the pipeline is connected to a curved pipe 305, and the curved pipe 305 is connected to a water inlet pipe 306, and the water inlet pipe 306 is connected to an external deionized water network. Specifically, in the present application, the water inlet pipe 306 extends upward from the bottom of the dome 2 until it extends out from the skylight 208 and is connected to the deionized water used for cleaning from the outside; during cleaning, water is sprayed out from the nozzle 307 and reaches the inner wall of the sampling box 1, spraying and cleaning the inside thereof, and the sewage after cleaning can be discharged from the bottom of the sampling box 1.

[0039] like Figure 1As shown, a plurality of detection devices 4 are installed on the inner wall of the sampling box 1, and the signal transmission end of the detection device 4 passes through the sampling box 1 and is connected to the electric control cabinet 5. The plurality of detection devices 4 mainly include a digital pH sensor for detecting the pH value of the sample, a conductivity meter for detecting the conductivity of the sample, an ORP meter for detecting the oxidation-reduction position, a dissolved oxygen meter for detecting dissolved oxygen, a temperature sensor for detecting temperature, etc. The electric control cabinet 5 is provided with a TOS system for storing and managing the above data, and also has an industrial control module for the electrical equipment such as the electric control cylinder 19 and the reduction motor to realize the automatic sampling function of the equipment.

[0040] like Figure 1 As shown, an iris switch 6 is installed in the sampling box 1 at a position below the detection device 4. Below the iris switch 6 is a funnel-shaped water outlet 7. Several electric heating devices 9 are installed in the side wall of the water outlet 7. The electric heating device 9 is electrically connected to a battery 10. The battery 10 is fixedly installed on the inner wall of the support leg 12. The battery 10 stores electricity through a solar device 11. A sampling device 8 is installed at the bottom of the water outlet 7. When the iris switch 6 is turned on, the collected rain and snow water comes out of the water outlet 7 and enters the sampling bottle along the channel of the sampling device 8. In addition, when collecting snow water, due to the cold weather, the snow is not easy to melt. By turning on the electric heating device 9 and detecting the temperature change in the sampling box 1 through the temperature sensor, when it reaches a certain temperature, the snow melts into water, which is convenient for detection and collection, and improves the detection efficiency. After the detection is completed, the electric heating device 9 is turned off after the sampling is completed.

[0041] like Figure 7 , 8As shown, the iris switch 6 comprises an upper plate 601 fixedly mounted on the inner side wall of the sampling box 1, and the center of the upper plate 601 is an open hole structure. A matching lower ring 602 is slidably mounted below the upper plate 601, and a plurality of arc grooves 603 are evenly spaced on the circumference of the lower ring 602, and a plurality of matching stop blocks 604 are slidably mounted in the arc grooves 603, and the stop blocks 604 are fixedly mounted on the upper plate 601. The inner wall of the lower ring 602 is provided with hinge blocks 605 having the same number as the arc grooves 603, and the hinge blocks 605 are hingedly connected to the blades 607 through the hinge rods 606, and the blades 607 are hingedly connected to the upper plate 601 at one end away from the hinge rods 606; the outer wall of the lower ring 602 is provided with a rotating rod 608, and the rotating rod 608 is located outside the sampling box 1 after passing through the sampling box 1. When it is necessary to collect the sample into the sampling bottle, the operator holds the sampling bottle, puts it on the outlet end of the sampling device 8, and then manually pushes the rotating rod 608, and the lower ring 602 rotates accordingly. When rotating, the hinge rod 606 drives one end of the blade 607 to rotate, and finally, all the closed blades are opened, exposing the opening in the center of the upper plate 601, forming a sample discharge channel, and the sample falls from here into the sampling device 8 below.

[0042] like Fig. 9 As shown, the solar device 11 includes an inclined solar panel 1101, and a support frame 1102 is installed on the back of the solar panel 1101. Specifically, the support frame 1102 adopts a structure of two cross bars that are symmetrically distributed up and down, and the specific lengths of the short cross bar and the long cross bar are determined according to the requirements of the inclination angle of the solar panel 1101. Then, the upper and lower cross bars are fixedly connected together through an "I"-shaped structure, which improves the installation firmness while ensuring stability. A clamp 1105 is installed at one end of the support frame 1102 away from the solar panel 1101, and an n-type mounting frame 1103 is clamped in the clamp 1105. The clamp 1105 is in a loose state, and the inclination angle of the solar panel 1101 can be fine-tuned to meet the requirements of sufficient sunlight time in all seasons. A fixed mounting plate 1104 is installed at the end of the n-type mounting frame 1103, and the fixed mounting plate 1104 is installed on the outer wall of the sampling box 1 and the support leg 12 through a bolt assembly.

[0043] The use process of the present invention is as follows:

[0044] First, move the sampling box 1 to a suitable sampling position and raise the height of the sampling box 1; then, after it rains, first rinse the dome 2 with rainwater, the rainwater is collected by the sump 14, and finally discharged from the water outlet 15; then, turn on the cylinder 19 to push the vertical plate 17 to rise and cover the dome 2; then, open the top cover 202 on the top of the dome 2, and the rainwater enters the sampling box 1. Since the siphon switch 6 in the sampling box 1 is in a closed state, the rainwater gradually gathers. As the amount of rainwater increases, the detection device 4 begins to detect it in real time and transmits the detection signal to the electric control cabinet 5. The electric control cabinet 5 controls the top cover 202 to close according to the collected information and stops the sampling process; then, the operator holds the sampling bottle and places it at the outlet of the sampling device 8, manually opens the iris switch 6, and the sample is collected in the sampling bottle; finally, the cleaning device 3 is connected to the external deionized water network to self-clean the interior of the sampling box 1. After the end, disconnect the pipeline connection and close the iris switch 6 to prepare for the next sampling.

[0045] In addition, when snow water needs to be collected, the electric heating device 9 needs to be turned on during sampling to heat the snow in the sampling box 1 to accelerate its melting and achieve the purpose of detection.

[0046] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. An automatic rain and snow water sampling device for environmental monitoring, Features: The sampling box (1) comprises a sampling box (1), the bottom of which is provided with a plurality of symmetrically distributed supporting legs (12), the bottom of which is provided with a walking trolley (13); the top of the sampling box (1) is provided with a dome (2), the bottom of which is located inside the sampling box (1) and is provided with a cleaning device (3); the top of the sampling box (1) is provided with a water collecting trough (14) on the outer periphery, the outer edge of the dome (2) is located above the water collecting trough (14); the outer side wall of the water collecting trough (14) is provided with a plurality of water outlet holes (15), the outer side wall of the water collecting trough (14) is provided with a chute (16) with a top opening, a vertical plate (17) is slidably provided in the chute (16), a plurality of push-pull rods (18) are equidistantly provided on the upper outer side wall of the vertical plate, the bottom of the push-pull rods (18) are provided with a plurality of water outlet holes (15), the outer side wall of the water collecting trough (14) is provided with a top opening chute (16), a vertical plate (17) is slidably provided in the vertical plate, a plurality of push-pull rods (18) are equidistantly provided on the upper outer side wall of the vertical plate, the bottom of the push-pull rods (18) are provided with a plurality of push-pull rods (18) and ... A cylinder (19) is arranged on the inner wall of the sampling box (1), and the fixed end of the cylinder (19) is fixedly arranged on the outer wall of the slide groove (16); a plurality of detection devices (4) are arranged on the inner wall of the sampling box (1), and the signal transmission end of the detection device (4) is connected to the electric control cabinet (5) after passing through the sampling box (1); an iris switch (6) is arranged at a position below the detection device (4) in the sampling box (1), and a funnel-shaped water outlet hopper (7) is arranged below the iris switch (6), and a plurality of electric heating devices (9) are arranged in the side wall of the water outlet hopper (7), and the electric heating device (9) is electrically connected to a battery (10), and the battery (10) is fixedly arranged on the inner wall of the supporting leg (12), and the battery (10) stores electricity through a solar device (11); a sampling device (8) is arranged at the bottom of the water outlet hopper (7).

2. The automatic rain and snow water sampling device for environmental monitoring according to claim 1, Features: The dome (2) comprises a support tube (201) located at the bottom, and a top cover (202) matching the support tube (201) is arranged on the upper part of the support tube (201); a hinged ear plate 1 (203) is arranged on the upper end surface of the support tube (201), and a hinged ear plate 2 (204) matching the hinged ear plate 1 (203) is arranged on the upper end surface of the top cover (202); the hinged ear plate 1 (203) and the hinged ear plate 2 (204) are hingedly connected together via a hinge shaft (205).

3. The automatic rain and snow water sampling device for environmental monitoring according to claim 2, Features: A handle (206) is provided on the upper end surface of the top cover (202), and a square opening is provided on the upper end surface of the top cover (202) at one end away from the handle, wherein the square opening is hingedly connected to the skylight (208) via a hinge (207).

4. The automatic rain and snow water sampling device for environmental monitoring according to claim 2, Features: The hinge shaft (205) is connected to a reduction motor for driving the hinge shaft to rotate.

5. The automatic rain and snow water sampling device for environmental monitoring according to claim 1, Features: The cleaning device (3) comprises a round support (301) arranged at the bottom of the dome (2); a plurality of inwardly inclined slats (302) are arranged on the circumference of the inner wall of the round support (301); the other end of the inclined support (302) is fixedly connected to a pipe sleeve (303); a pipeline is arranged inside the pipe sleeve (303); a plurality of inclined pipes (304) are arranged on the circumference of the bottom of the pipeline; a nozzle (307) is arranged at the end of the inclined pipe (304); the upper part of the pipeline is connected to a curved pipe (305); the curved pipe (305) is connected to a water inlet pipe (306); and the water inlet pipe (306) is connected to an external deionized water network.

6. The automatic rain and snow water sampling device for environmental monitoring according to claim 1, Features: The bottom of the water outlet hole (15) is arranged to be inclined downward.

7. The automatic rain and snow water sampling device for environmental monitoring according to claim 1, Features: A plurality of ribs (20) are arranged between the bottom of the slide groove (16) and the outer side wall of the sampling box (1).

8. The automatic rain and snow water sampling device for environmental monitoring according to claim 1, Features: The vertical plate (17) is in an annular structure.

9. The automatic rain and snow water sampling device for environmental monitoring according to claim 1, Features: The iris switch (6) comprises an upper plate (601) fixedly arranged together with the inner wall of the sampling box (1), and the center of the upper plate (601) is an open hole structure; a lower ring (602) matching with the upper plate (601) is slidably arranged below the upper plate (601), and a plurality of arc grooves (603) are evenly spaced on the circumference of the lower ring (602), and a plurality of stop blocks (604) matching with the arc grooves (603) are slidably arranged in the arc grooves (603), and the stop blocks (604) are fixedly arranged on the upper plate (601). 01); the inner wall of the lower ring (602) is provided with hinge blocks (605) whose number is the same as the arc grooves (603); the hinge blocks (605) are hingedly connected to the blades (607) through hinge rods (606); the blades (607) are hingedly connected to the upper plate (601) at one end away from the hinge rod (606); the outer wall of the lower ring (602) is provided with a rotating rod (608), and the rotating rod (608) is located on the outside of the sampling box (1) after passing through the sampling box (1).

10. The automatic rain and snow water sampling device for environmental monitoring according to claim 1, Features: The solar device (11) comprises a solar panel (1101) arranged at an angle, a support frame (1102) being arranged on the back of the solar panel (1101), a clamp (1105) being arranged on one end of the support frame (1102) away from the solar panel (1101), an n-type mounting frame (1103) being clamped in the clamp (1105), a fixed mounting plate (1104) being arranged at the end of the n-type mounting frame (1103), and the fixed mounting plate (1104) being arranged on the outer side walls of the sampling box (1) and the supporting legs (12) by means of a bolt assembly.

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