Sewage detection device

Abstract

The invention relates to a sewage detection device, and belongs to the technical field of environment detection equipment, the sewage detection device comprises a connecting plate, a plurality of sampling rods are arranged below the connecting plate, one end, far away from the connecting plate, of each sampling rod is provided with a loading assembly used for being connected with a sampling bottle, and a telescopic assembly is arranged in each sampling rod; the telescopic assembly is provided with the same loading assembly. The device has the effects of detecting water samples at the same position and different depths and improving the detection precision.

Description

Technical Field

[0001] This application relates to the field of environmental monitoring equipment, and in particular to a wastewater monitoring device. Background Technology

[0002] Environmental protection refers to all actions taken by humankind to solve existing or potential environmental problems, coordinate the relationship between humans and the environment, and ensure the sustainable development of the economy and society. Polluted and damaged environments must be comprehensively managed to create environments suitable for human life and work. With rapid industrial development, the types and quantities of wastewater have increased dramatically, and water pollution has become increasingly widespread and serious, threatening human health and safety. Therefore, environmental governance is receiving increasing attention and importance, with wastewater testing being a crucial component of environmental monitoring.

[0003] Wastewater is usually sampled directly using sampling bottles, and then tested by testing equipment. However, this method is too simplistic and cannot accurately collect wastewater samples from different depths at the same location, thus making precise comparative testing impossible. Summary of the Invention

[0004] In order to improve the detection accuracy of water samples at different depths at the same location, this application provides a wastewater detection device.

[0005] The wastewater detection device provided in this application adopts the following technical solution: A wastewater testing device includes a connecting plate, a plurality of sampling rods are provided below the connecting plate, a loading assembly for connecting a sampling bottle is provided at the end of the sampling rod away from the connecting plate, a telescopic assembly is provided inside the sampling rod, and the telescopic assembly is provided with the same loading assembly.

[0006] By adopting the above technical solution, the connecting plate is placed above the area of ​​the water sample to be tested. The loading component on the sampling rod takes a sample through the sampling bottle. At the same time, the telescopic component extends the length of the sampling rod, and the loading component on the telescopic component carries the sampling bottle to a deeper area, thereby obtaining water samples at different depths at the same location. This allows for the rapid acquisition of multiple water samples, improving sampling efficiency. Furthermore, it reduces other interfering factors and improves detection accuracy when testing water samples.

[0007] Optionally, the loading assembly includes a rotating cylinder rotatably connected to the sampling rod, a fixing plate connecting the rotating cylinders on the two sampling rods is provided between adjacent sampling rods, a sampling bottle is provided on the fixing plate, and a clamping member is provided between the fixing plate and the sampling bottle.

[0008] By adopting the above technical solution, the clamping component on the fixed plate fixes the sampling bottle to the fixed plate, so that the sampling bottle can move synchronously with the fixed plate and reach the corresponding area for sampling. The rotating cylinder and the fixed plate cooperate to connect multiple sampling rods and improve the stability of the sampling rods.

[0009] Optionally, the clamping member includes two clamping plates disposed on the same side of the fixed plate. The fixed plate has a through hole. One end of the clamping plate is located inside the through hole, and the other end is located outside the through hole. The middle position of the clamping plate is rotatably connected to the fixed plate. A slider is slidably connected inside the through hole. One end of the slider is located between the two clamping plates, and the other end gradually narrows and passes through the through hole. The ends of the two clamping plates located inside the through hole abut against the side wall of the slider. A spring is also provided between the slider and the fixed plate to connect the two.

[0010] By adopting the above technical solution, the body of the sampling bottle abuts against the slider and pushes the slider into the through hole. The side wall of the slider presses against the end of the clamping plate, so that the other end of the clamping plate approaches and presses against the sampling bottle. Thus, the two clamping plates clamp the sampling bottle. The spring is used to reinforce the position of the slider, thereby maintaining the clamping operation of the clamping plate on the sampling bottle and improving the stability of the sampling bottle.

[0011] Optionally, the slider includes a movable block slidably connected in the through hole, a rotating rod is provided on the side of the movable block away from the clamping plate, a plurality of locking blocks are rotatably connected on the rotating rod, all of the locking blocks gradually narrow in the direction away from the movable block, and the spring is connected between the movable block and the fixed plate.

[0012] By adopting the above technical solution, the body of the sampling bottle abuts against and squeezes the moving block, thereby moving the moving block toward the inside of the through hole, so that part of the locking block protrudes from the end of the through hole away from the moving block. After the clamping plate clamps the sampling bottle, the locking block located outside the through hole is rotated, so that the locking block abuts against the side wall of the fixed plate, thereby restricting the position of the moving block, so that the clamping plate can stably clamp the sampling bottle, thereby making it convenient and quick to assemble and disassemble the sampling bottle.

[0013] Optionally, the clamping plate is provided with multiple rubber suction cups on the side facing the through hole, and the moving block is provided with a buffer block on the side near the suction cups. A groove is provided on one side of the snap-fit ​​block, and a protrusion that matches the groove on the adjacent snap-fit ​​block is provided on the other side of the snap-fit ​​block.

[0014] By adopting the above technical solution, when the clamping plate holds the sampling bottle, the rubber suction cup first contacts the bottle body and then adheres to the bottle body, thus playing a role in stable clamping. At the same time, the rubber suction cup can act as a buffer between the clamping plate and the sampling bottle, reducing the possibility of the sampling bottle breaking due to excessive pressure from the clamping plate. In addition, the grooves and protrusions on the locking blocks can make the adjacent locking blocks fit stably, reducing the possibility of the locking blocks shaking randomly.

[0015] Optionally, the telescopic assembly includes a first telescopic rod coaxial with the sampling rod, the first telescopic rod passing through the sampling rod, the rotating cylinder being provided at the end of the first telescopic rod away from the sampling rod, a drive groove being provided inside the sampling rod, a drive block being provided on the outer side wall of the first telescopic rod located within the drive groove, a thread being provided between the drive block and the drive groove, a drive component being provided on the connecting plate for driving the sampling rod to rotate, and a limiting component being provided between the sampling rod and the first telescopic rod.

[0016] By adopting the above technical solution, the driving component drives the sampling rod to rotate. At this time, the limiting component keeps the first telescopic rod from rotating relative to the fixed plate. Thus, the thread on the sampling rod drives the driving block to move away from the fixed plate, so that the first telescopic rod extends outward from the sampling rod, thereby allowing the sampling bottle on the first telescopic rod to descend to the deep area and improve sampling efficiency.

[0017] Optionally, the outer wall of the first telescopic rod is provided with a plurality of guide grooves evenly distributed around the axis of the first telescopic rod and parallel to the axis. The limiting member includes a limiting rod, one end of which is inserted into the rotating drum, and the other end is provided with a roller, and the roller abuts against the bottom of the guide groove. The rotating drum is also provided with an electric telescopic rod, which is fixedly connected to the limiting rod. Both ends of the drive groove are provided with limiting blocks for abutting against the drive block, and sensors are provided on the limiting blocks.

[0018] By adopting the above technical solution, when the driving component drives the sampling rod to rotate, the electric telescopic rod drives the limiting rod to move toward the first telescopic rod until the roller abuts against the bottom of the guide groove, thereby restricting the rotation of the first telescopic rod and causing the first telescopic rod to extend outward from the sampling rod. When the driving block on the first telescopic rod abuts against the limiting block and is detected by the sensor, the electric telescopic rod drives the limiting rod to move away from the first telescopic rod, causing the roller to disengage from the guide groove. At this time, the sampling rod drives the second telescopic rod to rotate through the limiting block and the driving block.

[0019] Optionally, a second telescopic rod is also inserted inside the first telescopic rod. The second telescopic rod is also equipped with a rotating cylinder, and the connection method between the second telescopic rod and the first telescopic rod is the same as the connection method between the first telescopic rod and the sampling rod.

[0020] By adopting the above technical solution, when the first telescopic rod rotates with the sampling rod, the second telescopic rod is first restricted by the limiting member, thus keeping it from rotating, until the driving block on the second telescopic rod abuts against the limiting block on the first telescopic rod, thereby completing the second extension of the sampling rod and further deepening the sampling area.

[0021] Optionally, a support plate is fixedly connected to the movable block, a connecting rod is slidably connected to the support plate, and a rotating disk is rotatably connected to the end of the connecting rod away from the support plate. The rotating disk has a polygonal receiving groove on the side facing the sampling bottle that is adapted to the bottle cap. A magnetic block for adsorbing the bottle cap is provided in the receiving groove. A connecting piece for driving the rotating disk to rotate is provided between the fixed plate and the connecting rod.

[0022] By adopting the above technical solution, after the sampling bottle is clamped and fixed by the clamping plate, the connecting piece drives the rotating disk to rotate. The rotating disk attracts the bottle cap through the magnetic block and aligns with the sampling bottle. At this time, the connecting rod moves towards the sampling bottle until the bottle cap is screwed on the bottle mouth. When the sampling bottle reaches the corresponding water depth, the connecting rod and the rotating disk return in opposite directions, so that the water sample can enter the sampling bottle. Finally, the bottle cap is screwed on the bottle mouth, thus completing the sampling until it leaves the water surface.

[0023] Optionally, the connecting rod has a cavity inside, and a pair of pulleys are rotatably connected inside the connecting rod, with a belt between the two pulleys. A gear is coaxially arranged on one pulley near the rotating disk, and the gear meshes with a gear ring. The gear ring is fixed coaxially with the rotating disk. A ball screw is threaded onto the other pulley and fixedly connected to the support plate. The ball screw is threadedly connected to the other pulley. A hydraulic cylinder for driving the connecting rod to slide is provided on the support plate.

[0024] By adopting the above technical solution, the hydraulic cylinder drives the connecting rod to slide relative to the support plate. During the sliding process of the connecting rod, one of the pulleys moves along the ball screw, thereby rotating the pulley and driving the other pulley to rotate through the belt, which in turn drives the gear shifting gear to rotate, causing the rotating disk to rotate accordingly. At this time, the work of moving the connecting rod and driving the rotating disk to rotate is completed.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. The loading component on the sampling rod takes samples through the sampling bottle. At the same time, the telescopic component extends the length of the sampling rod, and the loading component on the telescopic component carries the sampling bottle to a deeper area, thereby obtaining water samples at different depths at the same location. This allows for the rapid acquisition of multiple water samples, improving sampling efficiency. Furthermore, it reduces other interfering factors and improves detection accuracy when testing water samples. 2. The clamping parts on the fixed plate fix the sampling bottle to the fixed plate, so that the sampling bottle can move synchronously with the fixed plate and reach the corresponding area for sampling. The rotating drum and the fixed plate work together to connect multiple sampling rods and improve the stability of the sampling rods. 3. After the sampling bottle is clamped and fixed by the clamping plate, the connecting piece drives the rotating disk to rotate. The rotating disk attracts the bottle cap through the magnetic block and aligns with the sampling bottle. At this time, the connecting rod moves towards the sampling bottle until the bottle cap is screwed on the bottle mouth. When the sampling bottle reaches the corresponding water depth, the connecting rod and the rotating disk return in opposite directions, allowing the water sample to enter the sampling bottle. Finally, the bottle cap is screwed on the bottle mouth, thus completing the sampling and improving sampling efficiency. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0027] Figure 2 This is a schematic diagram of the structure of the driver component according to an embodiment of this application.

[0028] Figure 3 This is a schematic diagram of the structure of the telescopic component according to an embodiment of this application.

[0029] Figure 4 This is a schematic diagram of the structure of the clamping member according to an embodiment of this application.

[0030] Explanation of reference numerals in the attached drawings: 1. Connecting plate; 11. Driving component; 111. Drive motor; 112. Sprocket; 113. Chain; 2. Sampling rod; 21. Drive groove; 22. Limiting block; 3. Loading assembly; 31. Rotary drum; 32. Fixing plate; 33. Clamping component; 331. Clamping plate; 332. Moving block; 333. Rotating rod; 334. Snap-fit ​​block; 335. Rubber suction cup; 4. Telescopic assembly; 41. First telescopic rod; 411. Driving block; 412. Guide groove; 42. Limiting component; 421. Limiting rod; 422. Roller; 43. Second telescopic rod; 5. Support plate; 51. Connecting rod; 52. Rotating disk; 521. Receiving groove; 522. Bottle cap; 53. Connecting component; 531. Pulley; 532. Gear; 533. Gear ring; 534. Ball screw; 535. Hydraulic cylinder. Detailed Implementation

[0031] The present application will be further described in detail below with reference to the accompanying drawings.

[0032] This application discloses a wastewater detection device. (Refer to...) Figure 1 and Figure 2A wastewater testing device includes a connecting plate 1 with airbags installed around its periphery, allowing it to float on the water surface. Three parallel sampling rods 2 are rotatably connected to the bottom of the connecting plate 1, and each sampling rod 2 is hollow. A loading assembly 3 for connecting a sampling bottle is located at the end of each sampling rod 2 away from the connecting plate 1. A telescopic assembly 4 is located inside each sampling rod 2, and the same loading assembly 3 is mounted on the telescopic assembly 4. The sampling bottle is equipped with detection probes, which mainly include phenolphthalein test paper for color development in alkaline water, pH test paper for measuring pH values, and an electric heating wire for heating and boiling water to observe turbidity and water hardness.

[0033] The connecting plate 1 is placed above the area of ​​the water sample to be tested. The loading component 3 on the sampling rod 2 takes a sample through the sampling bottle. At the same time, the telescopic component 4 extends the length of the sampling rod 2, and the loading component 3 on the telescopic component 4 carries the sampling bottle to a deeper area, thereby obtaining water samples at different depths at the same location. Meanwhile, the detection probe inside the sample detects water samples at different depths. This allows for the rapid acquisition and detection of multiple water samples, improving detection efficiency. Furthermore, it reduces other interfering factors during water sample detection, thereby improving detection accuracy.

[0034] The loading assembly 3 includes a rotating cylinder 31 rotatably connected to the sampling rod 2. A fixing plate 32 is provided between adjacent sampling rods 2, fixing the rotating cylinders 31 on two sampling rods 2. The three rotating cylinders 31 and the three fixing plates 32 cooperate to form a triangle, thereby connecting multiple sampling rods 2 and improving the stability of the sampling rods 2. A clamping member 33 is provided on the fixing plate 32, and the sampling bottle is fixed by the clamping member 33.

[0035] Reference Figure 1 and Figure 3 and Figure 4 The clamping member 33 includes two clamping plates 331 disposed on the same side of the fixing plate 32. The fixing plate 32 has a through hole. One end of the clamping plate 331 is located inside the through hole, and the other end is located outside the through hole. The middle position of the clamping plate 331 is rotatably connected to the fixing plate 32. A slider is slidably connected inside the through hole. The slider includes a moving block 332 slidably connected in the through hole. A spring is also provided between the moving block 332 and the fixing plate 32 to connect the two.

[0036] A rotating rod 333 is fixedly connected to the side of the movable block 332 away from the clamping plate 331. Multiple locking blocks 334 are rotatably connected to the rotating rod 333. All locking blocks 334 gradually narrow in the direction away from the movable block 332. One side of each locking block 334 has a groove, and the other side has a protrusion that matches the groove on the adjacent locking block 334. The groove and protrusion on the locking blocks 334 ensure stable engagement between adjacent locking blocks 334, reducing the possibility of them wobbling. The ends of the two clamping plates 331 located within the through holes abut against the sidewalls of the locking blocks 334.

[0037] The body of the sampling bottle abuts against and presses against the moving block 332, thereby moving the moving block 332 toward the inside of the through hole, so that part of the locking block 334 protrudes from the end of the through hole away from the moving block 332. The side wall of the locking block 334 presses against the end of the clamping plate 331, so that the other end of the clamping plate 331 approaches and presses against the sampling bottle, thereby clamping the sampling bottle with the two clamping plates 331. After the clamping plate 331 clamps the sampling bottle, the locking block 334 located outside the through hole is rotated, so that the locking block 334 abuts against the side wall of the fixing plate 32. The spring maintains the pressure applied by the locking block 334 to the side wall of the fixing plate 32, thereby limiting the position of the moving block 332, so that the clamping plate 331 can stably clamp the sampling bottle, thereby making it convenient and quick to assemble and disassemble the sampling bottle.

[0038] The clamping plate 331 is provided with multiple rubber suction cups 335 on the side facing the through hole, and the moving block 332 is provided with a buffer block on the side near the suction cups. When the clamping plate 331 clamps the sampling bottle, the rubber suction cups 335 first contact the bottle body and then adhere to the bottle body, which plays a role in stabilizing the clamping. At the same time, the rubber suction cups 335 can play a buffering role between the clamping plate 331 and the sampling bottle, reducing the possibility of the sampling bottle breaking due to excessive pressure from the clamping plate 331.

[0039] The telescopic assembly 4 includes a first telescopic rod 41 coaxial with the sampling rod 2. The first telescopic rod 41 is hollow and passes through the sampling rod 2. The end of the first telescopic rod 41 away from the sampling rod 2 is also rotatably connected to a rotating cylinder 31. The sampling rod 2 has a drive groove 21 inside. The outer wall of the first telescopic rod 41 has a drive block 411 located in the drive groove 21. The drive block 411 and the drive groove 21 have mutually engaging threads. A limiting member 42 is also provided between the sampling rod 2 and the first telescopic rod 41.

[0040] When the sampling rod 2 rotates, the limiting member 42 keeps the first telescopic rod 41 from rotating relative to the fixed plate 32. As a result, the thread on the sampling rod 2 drives the driving block 411 to move away from the fixed plate 32, so that the first telescopic rod 41 extends outward from the sampling rod 2, thereby allowing the sampling bottle on the first telescopic rod 41 to descend to the deep area and improve sampling efficiency.

[0041] Reference Figure 2 The connecting plate 1 is equipped with a driving component 11 for rotating the sampling rods 2. The driving component 11 includes sprockets 112 corresponding to each sampling rod 2. The sprockets 112 are rotatably connected to the connecting plate 1. At the same time, a protective cover is installed on the side of the connecting plate 1 away from the sampling rods 2. A drive motor 111 is fixedly connected inside the protective cover. The output shaft of the drive motor 111 is coaxially fixed with one of the sprockets 112. All sprockets 112 are connected by a chain 113. The drive motor 111 synchronously drives all sampling rods 2 to rotate through the sprockets 112 and the chain 113.

[0042] Reference Figure 3 and Figure 4 The outer wall of the first telescopic rod 41 has a plurality of guide grooves 412 that are evenly distributed around the axis of the first telescopic rod 41 and parallel to the axis. The limiting member 42 includes a limiting rod 421, one end of which is inserted into the rotating drum 31 and the other end is provided with a roller 422, and the roller 422 abuts against the bottom of the guide groove 412. The rotating drum 31 is also provided with an electric telescopic rod, which is fixedly connected to the limiting rod 421. Both ends of the drive groove 21 are provided with limiting blocks 22 for abutting against the drive block 411, and sensors are provided on the limiting blocks 22.

[0043] When the driving component 11 drives the sampling rod 2 to rotate, the electric telescopic rod drives the limiting rod 421 to move toward the first telescopic rod 41 until the roller 422 abuts against the bottom of the guide groove 412, thereby restricting the rotation of the first telescopic rod 41 and causing the first telescopic rod 41 to extend outward from the sampling rod 2. When the driving block 411 on the first telescopic rod 41 abuts against the limiting block 22 and is detected by the sensor, the electric telescopic rod drives the limiting rod 421 to move away from the first telescopic rod 41, causing the roller 422 to disengage from the guide groove 412. At this time, the sampling rod 2 drives the second telescopic rod 43 to rotate through the limiting block 22 and the driving block 411.

[0044] A second telescopic rod 43 is also installed inside the first telescopic rod 41. A rotating cylinder 31 is also installed on the second telescopic rod 43, and the connection method between the second telescopic rod 43 and the first telescopic rod 41 is the same as the connection method between the first telescopic rod 41 and the sampling rod 2. Similarly, a third telescopic rod can also be installed inside the second telescopic rod 43; in this embodiment, only the second telescopic rod 43 is shown.

[0045] When the first telescopic rod 41 rotates with the sampling rod 2, the second telescopic rod 43 is first restricted by the limiting member 42, thus keeping it from rotating, until the driving block 411 on the second telescopic rod 43 abuts against the limiting block 22 on the first telescopic rod 41, thereby completing the second extension of the sampling rod 2 and further deepening the sampling area.

[0046] A support plate 5 is fixedly connected to the movable block 332. A connecting rod 51 is slidably connected to the support plate 5. A rotating disk 52 is rotatably connected to the end of the connecting rod 51 away from the support plate 5. The rotating disk 52 has a polygonal receiving groove 521 on the side facing the sampling bottle that is adapted to the sampling bottle cap 522. A magnetic block for adsorbing the sampling bottle cap 522 is provided in the receiving groove 521. A connecting piece 53 for driving the rotating disk 52 to rotate is provided between the fixed plate 32 and the connecting rod 51.

[0047] After the sampling bottle is clamped and fixed by the clamping plate 331, the connecting piece 53 drives the rotating disk 52 to rotate. The rotating disk 52 attracts the bottle cap 522 through the magnetic block and aligns it with the sampling bottle. At this time, the connecting rod 51 moves towards the sampling bottle until the bottle cap 522 is screwed onto the bottle mouth of the sampling bottle. When the sampling bottle reaches the corresponding water depth, the connecting rod 51 and the rotating disk 52 return in opposite directions, so that the water sample can enter the sampling bottle. Finally, the bottle cap 522 is screwed onto the bottle mouth, thus completing the sampling until it leaves the water surface.

[0048] The connecting rod 51 has a cavity inside, and a pair of pulleys 531 are rotatably connected inside the connecting rod 51. A belt is provided between the two pulleys 531. A gear 532 is coaxially arranged on one pulley 531 near the rotating disk 52. The gear 532 meshes with a gear ring 533. The gear ring 533 is fixed coaxially with the rotating disk 52. A ball screw 534 is fixedly connected to the support plate 5 on the other pulley 531. The ball screw 534 is threadedly connected to the other pulley 531. A hydraulic cylinder 535 is provided on the support plate 5 to drive the connecting rod 51 to slide.

[0049] The hydraulic cylinder 535 drives the connecting rod 51 to slide relative to the support plate 5. During the sliding process of the connecting rod 51, one of the pulleys 531 moves along the ball screw 534, thereby rotating the pulley 531 and driving the other pulley 531 to rotate through the belt. This causes the shifting gear 532 to rotate, making the rotating disk 52 rotate accordingly. At this time, the work of moving the connecting rod 51 and driving the rotating disk 52 to rotate is completed.

[0050] The implementation principle of a wastewater detection device in this application embodiment is as follows: the drive motor 111 drives the sampling rod 2 to rotate, and the sampling rod 2 drives the drive block 411 to extend the first telescopic rod 41 and the second telescopic rod 43 in sequence, thereby moving the sampling bottle to the corresponding position. At this time, the hydraulic cylinder 535 drives the connecting rod 51 to move, so that the bottle cap 522 is detached from the sampling bottle for sampling and is tightened on the sampling bottle for sealing. This enables fixed-point sampling and reduces the possibility of water sample mixing.

[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A wastewater detection device, characterized in that: Includes a connecting plate (1), and a plurality of sampling rods (2) are provided below the connecting plate (1). The sampling rod (2) is provided with a loading assembly (3) for connecting a sampling bottle at one end away from the connecting plate (1). The sampling rod (2) is provided with a telescopic assembly (4), and the same loading assembly (3) is provided on the telescopic assembly (4).

2. The wastewater detection device according to claim 1, characterized in that: The loading assembly (3) includes a rotating cylinder (31) rotatably connected to the sampling rod (2), and a fixing plate (32) connecting the rotating cylinders (31) on the two sampling rods (2) is provided between adjacent sampling rods (2). A sampling bottle is provided on the fixing plate (32), and a clamping member (33) is provided between the fixing plate (32) and the sampling bottle.

3. The wastewater detection device according to claim 2, characterized in that: The clamping member (33) includes two clamping plates (331) disposed on the same side of the fixing plate (32). The fixing plate (32) has a through hole. One end of the clamping plate (331) is located inside the through hole, and the other end is located outside the through hole. The middle position of the clamping plate (331) is rotatably connected to the fixing plate (32). A slider is slidably connected inside the through hole. One end of the slider is located between the two clamping plates (331), and the other end gradually narrows and passes through the through hole. The ends of the two clamping plates (331) located inside the through hole abut against the side wall of the slider. A spring is also provided between the slider and the fixing plate (32) to connect the two.

4. The wastewater detection device according to claim 3, characterized in that: The slider includes a movable block (332) slidably connected in a through hole. A rotating rod (333) is provided on the side of the movable block (332) away from the clamping plate (331). A plurality of snap-fit ​​blocks (334) are rotatably connected on the rotating rod (333). All the snap-fit ​​blocks (334) gradually narrow in the direction away from the movable block (332). The spring is connected between the movable block (332) and the fixed plate (32).

5. A wastewater detection device according to claim 4, characterized in that: The clamping plate (331) is provided with multiple rubber suction cups (335) on the side facing the through hole, and the moving block (332) is provided with a buffer block on the side near the suction cup. The snap-fit ​​block (334) has a groove on one side and a protrusion on the other side that matches the groove on the adjacent snap-fit ​​block (334).

6. A wastewater detection device according to claim 2, characterized in that: The telescopic assembly (4) includes a first telescopic rod (41) coaxial with the sampling rod (2). The first telescopic rod (41) is inserted into the sampling rod (2). The rotating cylinder (31) is provided at the end of the first telescopic rod (41) away from the sampling rod (2). A drive groove (21) is provided inside the sampling rod (2). A drive block (411) located in the drive groove (21) is provided on the outer wall of the first telescopic rod (41). A thread is provided between the drive block (411) and the drive groove (21). A drive member (11) for driving the sampling rod (2) to rotate is provided on the connecting plate (1). A limiting member (42) is also provided between the sampling rod (2) and the first telescopic rod (41).

7. A wastewater detection device according to claim 6, characterized in that: The outer wall of the first telescopic rod (41) is provided with a plurality of guide grooves (412) that are evenly distributed around the axis of the first telescopic rod (41) and parallel to the axis. The limiting member (42) includes a limiting rod (421). One end of the limiting rod (421) is inserted into the rotating drum (31), and the other end is provided with a roller (422). The roller (422) abuts against the bottom of the guide groove (412). The rotating drum (31) is also provided with an electric telescopic rod. The electric telescopic rod is fixedly connected to the limiting rod (421). Both ends of the drive groove (21) are provided with limiting blocks (22) for abutting against the drive block (411). The limiting block (22) is provided with a sensor.

8. A wastewater detection device according to claim 7, characterized in that: The first telescopic rod (41) is also equipped with a second telescopic rod (43), and the second telescopic rod (43) is also equipped with a rotating cylinder (31). The connection method between the second telescopic rod (43) and the first telescopic rod (41) is the same as the connection method between the first telescopic rod (41) and the sampling rod (2).

9. A wastewater detection device according to claim 4, characterized in that: A support plate (5) is fixedly connected to the movable block (332), and a connecting rod (51) is slidably connected to the support plate (5). A rotating disk (52) is rotatably connected to one end of the connecting rod (51) away from the support plate (5). The rotating disk (52) has a polygonal receiving groove (521) on the side facing the sampling bottle that is adapted to the bottle cap (522). A magnetic block for adsorbing the bottle cap (522) is provided in the receiving groove (521). A connecting piece (53) for driving the rotating disk (52) to rotate is provided between the fixed plate (32) and the connecting rod (51).

10. A wastewater detection device according to claim 9, characterized in that: The connecting rod (51) has a cavity inside. A pair of pulleys (531) are rotatably connected inside the connecting rod (51), and a belt is provided between the two pulleys (531). A gear (532) is coaxially arranged on one of the pulleys (531) near the rotating disk (52). The gear (532) meshes with a gear ring (533). The gear ring (533) is fixed coaxially with the rotating disk (52). A ball screw (534) is fixedly connected to the support plate (5) on the other pulley (531). The ball screw (534) is threadedly connected to the other pulley (531). A hydraulic cylinder (535) for driving the connecting rod (51) to slide is provided on the support plate (5).

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