Sewage sampling equipment for environment detection

Abstract

The invention discloses sewage sampling equipment for environment detection, and relates to the technical field of environment detection.The sewage sampling equipment comprises a first sampling box, a plurality of first open grooves are formed in the side face of the first sampling box, a second sampling box is installed on the inner side of the first sampling box, and a plurality of water storage grooves are formed in the inner side of the second sampling box; a second open slot is formed in the side surface of the second sampling box, the second open slot is communicated with the water storage tank, and a multi-depth sampling assembly is arranged on the first sampling box; the multi-depth sampling assembly comprises a first transmission unit and a second transmission unit which are arranged on the first sampling box, a pushing plate which is arranged on the side surface of the first sampling box in a sliding manner, a baffle plate which is arranged on the inner side of the first opening groove in a sliding manner, and a pressed rod which is arranged on the side surface of the baffle plate. Sampling work can be performed through the second open slots with different depths in sequence, and sampling work of the next second open slot is performed after the second open slot is closed, so that water flow disturbance caused by simultaneous opening of adjacent sampling ports is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of environmental detection, and in particular to a sewage sampling device for environmental detection. Background Art

[0002] Environmental testing is the process of quantitatively or qualitatively analyzing the physical, chemical, and biological properties of various substances in the environment (such as air, water, soil, noise, etc.) through scientific methods. It aims to assess environmental quality, identify pollution sources, monitor pollution trends, and provide data support for environmental management, pollution control, and ecological protection. Among them, sewage sampling is a key link in water monitoring in environmental testing. Its core purpose is to obtain representative water samples to accurately reflect the water pollution status.

[0003] Suspended matter, particulate matter, oil and other substances in sewage form layers due to density differences. Therefore, it is often necessary to sample sewage at different depths. Conventional sampling equipment will set up multiple sampling ports and open them for sampling at the same time in order to sample sewage at different depths at one time. However, when adjacent sampling ports are sampled at the same time, it is easy to disturb the water body, resulting in the collected samples may not be real in-situ water samples, affecting the sampling accuracy. Therefore, a sewage sampling device for environmental testing is proposed. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art that there are multiple sampling ports and they are opened for sampling at the same time, but adjacent sampling ports are easily disturbed when sampling at the same time, resulting in the collected samples may not be real in-situ water samples, affecting the sampling accuracy, and a sewage sampling device for environmental testing is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A sewage sampling device for environmental detection includes a first sampling box, a plurality of first opening slots are provided on the side of the first sampling box, a second sampling box is installed on the inner side of the first sampling box, a plurality of water storage slots are provided on the inner side of the second sampling box, a second opening slot is provided on the side of the second sampling box, the second opening slot and the water storage slot are connected, a multi-depth sampling assembly is provided on the first sampling box, and the multi-depth sampling assembly includes a first transmission unit and a second transmission unit provided on the first sampling box, a push plate slidingly provided on the side of the first sampling box, a baffle slidingly provided on the inner side of the first opening slot, and a pressure rod installed on the side of the baffle, the first transmission unit drives the push plate to move up through the second transmission unit, and the push plate squeezes the pressure rod when it moves up The inclined surface simultaneously drives the baffle to move and expose the second open slot. The sewage flows into the water storage tank through the first open slot and the second open slot, and continues to move upward to squeeze different pressure rods in turn. After the second open slot is closed, the next second open slot is sampled to avoid water flow disturbance caused by the simultaneous opening of adjacent sampling ports. The inner side of the second open slot is rotatably connected to a filter screen, and a round rod is installed on the side of the filter screen. The round rod and the baffle are movably connected. A scraper is symmetrically installed on the inner side of the second open slot. The sewage is filtered through the filter screen when it flows. When the baffle is displaced, the filter screen is driven to rotate by the round rod and the rotating filter screen is scraped by the scraper. The filter screen rotates during sampling as the baffle moves, and the scraper continuously scrapes off large particles of impurities on the surface of the filter screen.

[0007] The above technical solution further includes:

[0008] The first transmission unit includes an L-shaped box installed on the upper part of the first sampling box, the first sampling box is rotatably connected to the first rotating rod, the first bevel gear is installed on the outer side of the first rotating rod, the inner side of the first sampling box is rotatably connected to the second rotating rod, the second rotating rod is installed with a second bevel gear at one end close to the first rotating rod, the second bevel gear is meshed with the first bevel gear, and the second rotating rod is installed with a third bevel gear at one end away from the second bevel gear. The inner side of the L-shaped box is rotatably connected to the third rotating rod, the outer side of the third rotating rod is installed with a fourth bevel gear, the fourth bevel gear is meshed with the third bevel gear, and a rotating handle is installed on the end of the third rotating rod. When the third rotating rod rotates, the second rotating rod is driven to rotate by the fourth bevel gear and the third bevel gear. When the second rotating rod rotates, the first rotating rod is driven to rotate by the second bevel gear and the first bevel gear.

[0009] The second transmission unit includes a slide rail installed on the side of the first sampling box, a first sliding block is slidably provided on the inner side of the slide rail, a connecting rope is installed on the side of the first sliding block, an end of the connecting rope away from the first sliding block is fixedly connected to the first rotating rod, and a support rod is rotatably connected to the inner side of the slide rail.

[0010] A spring is installed at the bottom of the first sliding block, and one end of the spring away from the first sliding block is fixedly connected to the inner wall of the slide rail. The first sliding block is fixedly connected to the push plate.

[0011] A first sliding groove is provided on the inner side of the first opening groove, a second sliding block is slidingly provided on the inner side of the first sliding groove, a telescopic rod is installed on the side of the second sliding block, an end of the telescopic rod away from the second sliding block is fixedly connected to the inner wall of the first sliding groove, the second sliding block is fixedly connected to the baffle, and when the first rotating rod rotates, the connecting rope is pulled, and when the connecting rope moves, the first sliding block can be pulled to move along the slide rail.

[0012] The cross section of the compression rod is triangular, and the compression rod is located on the movement track of the pushing plate. When the pushing plate moves, it presses the inclined surface of the compression rod.

[0013] A second sliding groove is provided on the side of the baffle close to the second sampling box. The size of the opening of the second sliding groove is adapted to the size of the round rod. The second sliding groove and the round rod are movably connected. When the baffle moves, the round rod can move along the second sliding groove, and at the same time drive the filter to rotate.

[0014] The size of the opening of the first sliding groove is adapted to the size of the second sliding block, and the cross sections of the first sliding groove and the second sliding block are both convex.

[0015] A plurality of fixing rods are installed at the bottom of the first sampling box.

[0016] The baffle always keeps close contact with the side surface of the second sampling box when moving.

[0017] The present invention has the following beneficial effects:

[0018] 1. In the present invention, by setting up a multi-depth sampling component, sampling can be carried out in sequence through the second opening slots of different depths. After the second opening slot is closed, sampling can be carried out at the next second opening slot, thereby avoiding water flow disturbance caused by the simultaneous opening of adjacent sampling ports, ensuring the independence of samples at each depth and the real in-situ water samples.

[0019] 2. In the present invention, when the baffle moves to expose the second opening slot for sampling, the filter rotates as the baffle moves during sampling, and the scraper continuously scrapes off large particles of impurities on the surface of the filter to prevent clogging. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a sewage sampling device for environmental testing proposed by the present invention;

[0021] Figure 2Schematic diagram of the cross-sectional side view of the first sampling box and the L-shaped box in the present invention;

[0022] Figure 3 This is a schematic diagram of a first side view of the cross section of the first sampling box in the present invention;

[0023] Figure 4 This is a schematic diagram of the second side view of the cross section of the first sampling box in the present invention;

[0024] Figure 5 Schematic diagram of the overall structure of the present invention;

[0025] Figure 6 for Figure 2 A schematic diagram of the structure at center A;

[0026] Figure 7 for Figure 2 A magnified schematic diagram of the structure at point B in the middle;

[0027] Figure 8 for Figure 2 A magnified schematic diagram of the structure at point C in the middle;

[0028] Figure 9 for Figure 3 A magnified schematic diagram of the structure at D in the middle;

[0029] Figure 10 for Figure 4 Enlarged schematic diagram of the structure at E in the middle.

[0030] In the figure: 1. First sampling box; 2. L-shaped box; 3. First rotating rod; 4. First bevel gear; 5. Second rotating rod; 6. Second bevel gear; 7. Third bevel gear; 8. Third rotating rod; 9. Fourth bevel gear; 10. Rotating handle; 11. Slide rail; 12. First sliding block; 13. Push plate; 14. Spring; 15. Connecting rope; 16. Support rod; 17. First opening slot; 18. Second opening slot; 19. Filter; 20. First sliding slot; 21. Telescopic rod; 22. Second sliding block; 23. Baffle; 24. Pressure rod; 25. Water storage tank; 26. Second sliding slot; 27. Round rod; 28. Scraper; 29. ​​Second sampling box; 30. Fixed rod. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Example 1

[0033] like Figures 1-10 As shown, the present invention proposes a sewage sampling device for environmental detection, including a first sampling box 1, a plurality of first opening grooves 17 are provided on the side of the first sampling box 1, a second sampling box 29 is installed on the inner side of the first sampling box 1, a plurality of water storage grooves 25 are provided on the inner side of the second sampling box 29, a second opening groove 18 is provided on the side of the second sampling box 29, and the second opening groove 18 and the water storage groove 25 are connected. A multi-depth sampling component is provided on the first sampling box 1, and the multi-depth sampling component includes a first transmission unit and a second transmission unit provided on the first sampling box 1, a push plate 13 slidingly provided on the side of the first sampling box 1, a baffle 23 slidingly provided on the inner side of the first opening groove 17, and a pressure rod 24 installed on the side of the baffle 23. The first transmission unit drives the push plate 13 to move upward through the second transmission unit, and the push plate 13 squeezes the inclined surface of the pressure rod 24 when moving upward. The baffle 23 is driven to move and expose the second open slot 18. The sewage flows into the water storage tank 25 through the first open slot 17 and the second open slot 18, and continues to move upward to squeeze different pressure rods 24 in turn. After the second open slot 18 is closed, the sampling work of the next second open slot 18 is carried out to avoid water flow disturbance caused by the simultaneous opening of adjacent sampling ports. The inner side of the second open slot 18 is rotatably connected to the filter screen 19, and a round rod 27 is installed on the side of the filter screen 19. The round rod 27 is movably connected to the baffle 23. The scraper 28 is symmetrically installed on the inner side of the second open slot 18. When the sewage flows, it is filtered through the filter screen 19. When the baffle 23 is displaced, the filter screen 19 is driven to rotate by the round rod 27 and the rotating filter screen 19 is scraped by the scraper 28. The filter screen 19 rotates during sampling as the baffle 23 moves, and the scraper 28 continuously scrapes off large particles of impurities on the surface of the filter screen.

[0034] The first transmission unit includes an L-shaped box 2 installed on the upper part of the first sampling box 1, the inner side of the first sampling box 1 is rotatably connected to the first rotating rod 3, the outer side of the first rotating rod 3 is installed with a first bevel gear 4, the inner side of the first sampling box 1 is rotatably connected to the second rotating rod 5, the second rotating rod 5 is installed with a second bevel gear 6 at one end close to the first rotating rod 3, the second bevel gear 6 is meshed with the first bevel gear 4, and the second rotating rod 5 is installed with a third bevel gear 7 at one end away from the second bevel gear 6, the inner side of the L-shaped box 2 is rotatably connected to the third rotating rod 8, the outer side of the third rotating rod 8 is installed with a fourth bevel gear 9, the fourth bevel gear 9 is meshed with the third bevel gear 7, and a rotating handle 10 is installed at the end of the third rotating rod 8. When the third rotating rod 8 rotates, the second rotating rod 5 is driven to rotate through the fourth bevel gear 9 and the third bevel gear 7. When the second rotating rod 5 rotates, the first rotating rod 3 is driven to rotate through the second bevel gear 6 and the first bevel gear 4.

[0035] The second transmission unit includes a slide rail 11 installed on the side of the first sampling box 1, a first sliding block 12 is slidingly provided on the inner side of the slide rail 11, a connecting rope 15 is installed on the side of the first sliding block 12, and the end of the connecting rope 15 away from the first sliding block 12 is fixedly connected to the first rotating rod 3, and a support rod 16 is rotatably connected to the inner side of the slide rail 11.

[0036] A spring 14 is installed at the bottom of the first sliding block 12 . An end of the spring 14 away from the first sliding block 12 is fixedly connected to the inner wall of the slide rail 11 . The first sliding block 12 is fixedly connected to the push plate 13 .

[0037] A first sliding groove 20 is provided on the inner side of the first opening groove 17, and a second sliding block 22 is slidingly provided on the inner side of the first sliding groove 20. A telescopic rod 21 is installed on the side of the second sliding block 22. The end of the telescopic rod 21 away from the second sliding block 22 is fixedly connected to the inner wall of the first sliding groove 20, and the second sliding block 22 is fixedly connected to the baffle 23. When the first rotating rod 3 rotates, the connecting rope 15 is pulled, and when the connecting rope 15 moves, the first sliding block 12 can be pulled to move along the slide rail 11.

[0038] The cross section of the pressure rod 24 is triangular. The pressure rod 24 is located on the movement trajectory of the push plate 13 . The push plate 13 presses the inclined surface of the pressure rod 24 when it moves.

[0039] The size of the opening of the first sliding groove 20 matches the size of the second sliding block 22 , and the cross-sections of the first sliding groove 20 and the second sliding block 22 are both convex.

[0040] A plurality of fixing rods 30 are installed at the bottom of the first sampling box 1 .

[0041] In this embodiment, when sewage sampling is required, the first sampling box 1 can be directly inserted into the sewage, and the fixed rod 30 can be made to contact the bottom of the sewage. At this time, the third rotating rod 8 can be rotated by rotating the handle 10. Since the fourth bevel gear 9 is meshed with the third bevel gear 7, the second rotating rod 5 is driven to rotate through the fourth bevel gear 9 and the third bevel gear 7 when the third rotating rod 8 rotates, and since the second bevel gear 6 is meshed with the first bevel gear 4, the first rotating rod 3 is driven to rotate through the second bevel gear 6 and the first bevel gear 4 when the second rotating rod 5 rotates. When the first rotating rod 3 rotates, the connecting rope 15 can be pulled and the connecting rope 15 is supported by the support rod 16 to move and is wrapped around the first rotating rod 3. When the connecting rope 15 moves, the first sliding block 12 can be pulled to move along the slide rail 11, and the push plate 13 can be pulled to move. At this time, the spring 14 is stretched, and when the push plate 13 moves, it can squeeze the inclined surface of the pressure rod 24, and at the same time drive the pressure rod 24 and the baffle 23 away from the slide rail 1. 1, so that the baffle 23 moves along the first sliding groove 20 through the second sliding block 22. At this time, the telescopic rod 21 is retracted. When the baffle 23 moves, the second opening groove 18 is exposed for sampling. At this time, the sewage can enter the water storage tank 25 through the first opening groove 17 and the second opening groove 18 for storage. The third rotating rod 8 is rotated by rotating the handle 10 to make the connecting rope 15 continue to pull the pushing plate 13 to move. At this time, the pushing plate 13 moves to make the other side of the spring 14 inclined. Then, the baffle 23 is slowly reset by the telescopic rod 21 until the baffle 23 blocks the second opening groove 18 again. Then, it continues to move upward, so that the pushing plate 13 squeezes the next baffle 23 and exposes the second opening groove 18 for sampling. In this way, sampling is carried out through the second opening groove 18 of different depths in turn. After the second opening groove 18 is closed, the next second opening groove 18 is sampled, avoiding water flow disturbance caused by the simultaneous opening of adjacent sampling ports, ensuring the independence of samples at each depth.

[0042] Example 2

[0043] like Figures 1-10 As shown, based on the first embodiment, a second sliding groove 26 is provided on the side of the baffle 23 close to the second sampling box 29. The size of the opening of the second sliding groove 26 is adapted to the size of the round rod 27. The second sliding groove 26 and the round rod 27 are movably connected. When the baffle 23 moves, the round rod 27 can move along the second sliding groove 26, and at the same time drive the filter screen 19 to rotate.

[0044] In this embodiment, when the sewage enters the water storage tank 25 through the second open groove 18, large particles of impurities are filtered through the filter screen 19. When the baffle 23 moves, the round rod 27 can be moved along the second sliding groove 26, and at the same time drive the filter screen 19 to rotate. When the filter screen 19 rotates, it can be scraped by the scraper 28, thereby preventing large particles of impurities from being adsorbed on the filter screen 19 and affecting the sampling work of the second open groove 18.

[0045] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A sewage sampling device for environmental testing, comprising a first sampling box (1), characterized in that: The side of the first sampling box (1) is provided with a plurality of first opening grooves (17), the inner side of the first sampling box (1) is provided with a second sampling box (29), the inner side of the second sampling box (29) is provided with a plurality of water storage grooves (25), the side of the second sampling box (29) is provided with a second opening groove (18), the second opening groove (18) and the water storage groove (25) are connected, and a multi-depth sampling component is provided on the first sampling box (1), and the multi-depth sampling component includes a first transmission unit and a second transmission unit provided on the first sampling box (1), a push plate (13) slidingly provided on the side of the first sampling box (1), a baffle (23) slidingly provided on the inner side of the first opening groove (17), and a pressure rod (24) installed on the side of the baffle (23), and the first transmission unit drives the push plate (13) through the second transmission unit. The push plate (13) moves upward, and when the push plate (13) moves upward, it squeezes the inclined surface of the pressure rod (24), and at the same time drives the baffle (23) to move and expose the second opening groove (18). The sewage flows into the water storage tank (25) through the first opening groove (17) and the second opening groove (18), and continues to move upward to squeeze different pressure rods (24) in turn. The inner side of the second opening groove (18) is rotatably connected with a filter screen (19). A round rod (27) is installed on the side of the filter screen (19). The round rod (27) is movably connected to the baffle (23). A scraper (28) is symmetrically installed on the inner side of the second opening groove (18). When the sewage flows, it is filtered through the filter screen (19). When the baffle (23) moves, the filter screen (19) is driven to rotate by the round rod (27) and the rotating filter screen (19) is scraped by the scraper (28).

2. A sewage sampling device for environmental testing according to claim 1, characterized in that: The first transmission unit comprises an L-shaped box (2) installed on the upper part of a first sampling box (1), a first rotating rod (3) is rotatably connected to the inner side of the first sampling box (1), a first bevel gear (4) is installed on the outer side of the first rotating rod (3), a second rotating rod (5) is rotatably connected to the inner side of the first sampling box (1), a second bevel gear (6) is installed on the end of the second rotating rod (5) close to the first rotating rod (3), the second bevel gear (6) is meshed with the first bevel gear (4), a third bevel gear (7) is installed on the end of the second rotating rod (5) away from the second bevel gear (6), the inner side of the L-shaped box (2) is rotatably connected to the third rotating rod (8), a fourth bevel gear (9) is installed on the outer side of the third rotating rod (8), the fourth bevel gear (9) is meshed with the third bevel gear (7), and a rotating handle (10) is installed on the end of the third rotating rod (8).

3. A sewage sampling device for environmental testing according to claim 2, characterized in that: The second transmission unit includes a slide rail (11) installed on the side of the first sampling box (1), a first sliding block (12) is slidingly provided on the inner side of the slide rail (11), a connecting rope (15) is installed on the side of the first sliding block (12), and the end of the connecting rope (15) away from the first sliding block (12) is fixedly connected to the first rotating rod (3), and the inner side of the slide rail (11) is rotatably connected to the support rod (16).

4. The sewage sampling equipment for environmental testing according to claim 3, characterized in that: A spring (14) is installed at the bottom of the first sliding block (12), and one end of the spring (14) away from the first sliding block (12) is fixedly connected to the inner wall of the slide rail (11), and the first sliding block (12) is fixedly connected to the push plate (13).

5. The sewage sampling equipment for environmental testing according to claim 1, characterized in that: A first sliding groove (20) is provided on the inner side of the first opening groove (17), a second sliding block (22) is slidably provided on the inner side of the first sliding groove (20), a telescopic rod (21) is installed on the side of the second sliding block (22), an end of the telescopic rod (21) away from the second sliding block (22) is fixedly connected to the inner wall of the first sliding groove (20), and the second sliding block (22) is fixedly connected to the baffle (23).

6. The sewage sampling equipment for environmental testing according to claim 5, characterized in that: The cross section of the pressure rod (24) is triangular, and the pressure rod (24) is located on the movement track of the pushing plate (13).

7. The sewage sampling equipment for environmental testing according to claim 6, characterized in that: A second sliding groove (26) is provided on one side of the baffle (23) close to the second sampling box (29). The size of the opening of the second sliding groove (26) is adapted to the size of the round rod (27). The second sliding groove (26) is movably connected to the round rod (27).

8. The sewage sampling equipment for environmental testing according to claim 7, characterized in that: The size of the opening of the first sliding groove (20) is adapted to the size of the second sliding block (22), and the cross-sections of the first sliding groove (20) and the second sliding block (22) are both convex.

9. The sewage sampling equipment for environmental testing according to claim 1, characterized in that: A plurality of fixing rods (30) are installed at the bottom of the first sampling box (1).

10. The sewage sampling equipment for environmental testing according to claim 7, characterized in that: The baffle (23) always keeps close contact with the side surface of the second sampling box (29) when moving.

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