Wastewater detection device convenient for sampling

Abstract

The invention provides a wastewater detection device convenient for sampling, and relates to the technical field of wastewater sampling detection, the wastewater detection device comprises a base, a collection cylinder is mounted at the top of the base, the collection cylinder comprises a bottom plate, the bottom plate is fixed at the top of the base, an insertion disc is fixed at the top of the bottom plate, and a bearing disc is arranged between the bottom plate and the insertion disc; a bearing disc is arranged in the collecting cylinder, a plurality of collecting pipes are inserted into the surface of the bearing disc in a circle center symmetrical mode, the tops of the collecting pipes penetrate out of the inserting disc, a water distribution disc is fixed to the circle center of the inserting disc, and connecting openings are formed in the positions, corresponding to the collecting pipes, of the water distribution disc. The collection range can be increased through extension of a hose and a corrugated pipe, water flow drives an impeller in a water distribution disc to rotate, a filter plate of a cleaning cylinder is circularly cleaned through a driving assembly, blockage is avoided, meanwhile, water in a test tube can be prevented from overflowing through matched use of a sealing cover and a collection tube, and the collection efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater sampling and detection, in particular to a wastewater detection device which is convenient for sampling. Background Art

[0002] With the increase of domestic wastewater and industrial wastewater in daily life, the types of wastewater have increased greatly, and various wastewater detection devices are needed to detect them. However, most of the existing detection devices have too simple structures, which is very inconvenient for wastewater detection and sampling. It is easy to introduce impurities such as plastics in the wastewater into the wastewater detection device, thereby causing blockage inside the wastewater detection device and affecting the normal use of the wastewater detection device.

[0003] For the currently used water sampling devices, most of them are inserted into the water surface through a pipe. The other end of the pipe is connected to a collection tube to collect water into the collection tube. This process requires human intervention, and the collected test tubes are packaged and stored for testing. Collecting one test tube at a time is inefficient. At the same time, because impurities in the water need to be filtered out inside the pipe, the collection efficiency will also be affected when multiple groups of samples need to be collected. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a wastewater detection device that is easy to sample to solve the problems raised in the above-mentioned background technology. The present invention has a novel structure. Multiple groups of collection tubes are installed inside the collection tube. The collection range can be increased by extending the hose and the bellows. The water flow drives the impeller in the water distribution plate to rotate, and the filter plate of the cleaning tube is circulated and cleaned through the driving assembly to avoid blockage. At the same time, the use of the sealing cover and the collection tube can prevent water from overflowing from the test tube, thereby improving the collection efficiency.

[0005] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: a wastewater detection device that is easy to sample, including a base, a collection tube is installed on the top of the base, the collection tube includes a bottom plate, the bottom plate is fixed to the top of the base, and an insertion plate is fixed on the top of the bottom plate, a carrying plate is provided between the bottom plate and the insertion plate, and a plurality of collection tubes are symmetrically plugged in at the center of the circle on the surface of the carrying plate, the top of the collection tube passes through the insertion plate, a water separation plate is fixed at the center of the insertion plate, and a connection port is opened on the water separation plate corresponding to the position of the collection tube, and a hose is connected to the top of the water separation plate, and the hose A bellows is fixed to the other end, a fixing frame is fixed to one side of the base plate, and two cable tie rings are fixed to the top of the fixing frame, the hose slides through the two cable tie rings, an impeller is rotatably installed inside the center of the water diversion plate through a bearing, a driving assembly is provided at a position of the hose located at the top of the water diversion plate, the driving assembly includes a cleaning cylinder, the cleaning cylinder is fixed on the hose, and a filter plate is fixed inside the cleaning cylinder, a swivel is provided on the outside of the cleaning cylinder, and the swivel is slidably sleeved on the surface of the hose, the swivel is transmission-connected to the central axis of the impeller, and a COD detector is fixedly installed at the rear end of the base.

[0006] Furthermore, a telescopic plate is fixed on the top of the cable ring on the upper end surface of the hose, and the telescopic plate is fixed inside the shaft fixing frame, and a sliding frame is fixed to the extended end of the telescopic plate, and a plug-in plate is slidably plugged inside the sliding frame, and the bottom of the plug-in plate is fixedly connected to the bottom of the corrugated tube.

[0007] Furthermore, bolts are inserted into the outer side of the sliding frame and the top of the storage port of the telescopic plate, and the positions of the plug plate and the extended end of the telescopic plate are locked by the bolts.

[0008] Furthermore, a spring is fixed between the two groups of the cable tie rings, and the bent end of the hose at the other end of the spring is in compression contact.

[0009] Furthermore, the drive assembly also includes a shaft, the outer side of the base plate is rotatably mounted with the shaft through a bearing seat, the bottom of the shaft is mounted with a first transmission belt, and the top of the shaft is mounted with a second transmission belt, and the other side pulley of the first transmission belt is connected to the central axis of the impeller.

[0010] Furthermore, a connecting frame is fixed to the side of the cable tie ring at the upper end of the hose, and a pulley at the other end of the second transmission belt is installed at the bottom of the connecting frame. A first bevel gear is rotatably installed at a position corresponding to the pulley on the top of the connecting frame through a bearing, and the first bevel gear is fixedly connected to the pulley of the second transmission belt. A second bevel gear is rotatably installed on the vertical surface of the connecting frame, and the first bevel gear is meshingly connected with the second bevel gear.

[0011] Furthermore, a gear ring is fixed on the outer surface of the rotating ring, a transmission gear is fixed on the back side of the second bevel gear, and the transmission gear is meshingly connected with the gear ring.

[0012] Furthermore, an axial ring is rotatably installed on the surface of one end of the cleaning cylinder toward the rotating ring, connecting rods are fixed on both sides of the rotating ring, and the connecting rods are inserted into the cleaning cylinder and fixed with scrapers, and the scrapers are in sliding contact with the surface of the filter plate, and a discharge port is provided at the bottom of the cleaning cylinder, and a sealing cover is sealed on the surface of the discharge port of the cleaning cylinder.

[0013] Furthermore, a rubber cover is sleeved on the top of the collection tube, and a rubber insert is provided on the side of the rubber cover facing the connection port, and the insert is inserted into the connection port.

[0014] Furthermore, connecting ropes are fixed on both sides of the bottom of the rubber cover, and a floating plate is fixed on the bottom of the connecting ropes, and a through hole is opened at the center of the floating plate.

[0015] Beneficial effects of the present invention:

[0016] 1. In the initial state of the present invention, the float plate is located at the bottom of the collection tube. The float plate itself is made of a foam plate with a relatively light material, and can float on the top as water enters the collection tube. The sealing cover is sleeved on the top of the collection tube, and the insertion tube is inserted into the connecting port. The water distribution plate sends the extracted water into each collection tube through the connecting port. As the water level in the collection tube rises, the float plate moves upward until the position where the float plate is located blocks the insertion tube. At this time, water cannot be added to the collection tube, which can avoid the problem of insufficient water in the test tube or water overflow.

[0017] 2. When water flows into the water distribution plate, the impeller is driven to rotate, and the impeller introduces the water flow into each collection tube. At the same time, through the transmission of the first transmission belt, the shaft rod and the second transmission belt, the first bevel gear rotates and meshes with the second bevel gear. The transmission gear meshes with the gear ring to drive the rotating ring to rotate. The two connecting rods connecting the rotating ring and the cleaning cylinder drive the scraper to slide along the surface of the filter plate to continuously clean the filter plate to prevent clogging on the surface of the filter plate and affecting the pass rate. After the collection of each group of collection tubes is completed, the sealing cover is opened to discharge the impurities in the cleaning cylinder.

[0018] 3. The length of the hose portion of the present invention is limited between two cable tie rings and a spring as a reserved length. The reserved length can be released by adjusting the length of the telescopic plate to adjust the lateral position of the collection. The bellows connected to the other end of the hose can pass through the inside of the sliding frame along the plug plate to adjust the depth of the collected water. It can be suitable for sample collection with various needs. A water pump is set at the connecting end of the water distribution tray and the hose to pump water.

[0019] 4. Compared with the prior art, the present invention has multiple groups of collection tubes installed inside the collection tube. The collection range can be increased by extending the hose and the bellows. The water flow drives the impeller in the water distribution plate to rotate. The filter plate of the cleaning tube is circulated and cleaned through the driving component to avoid blockage. At the same time, the sealing cover and the collection tube are used in combination to prevent water from overflowing from the test tube, thereby improving the collection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a wastewater detection device that is convenient for sampling according to the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of a collection tube of a wastewater detection device that is convenient for sampling according to the present invention;

[0022] Figure 3 A schematic diagram of the surface structure of a hose of a wastewater detection device for facilitating sampling according to the present invention;

[0023] Figure 4 A schematic diagram of the connection between a first transmission belt and a second transmission belt of a wastewater detection device for facilitating sampling according to the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of a driving component of a wastewater detection device that is convenient for sampling according to the present invention;

[0025] Figure 6 A schematic diagram of the internal structure of a cleaning cylinder of a wastewater detection device that is convenient for sampling according to the present invention;

[0026] Figure 7 A schematic diagram of the internal structure of a water distribution plate of a wastewater detection device that is convenient for sampling according to the present invention;

[0027] Figure 8 The present invention is a schematic diagram of the internal structure of a collection tube of a wastewater detection device that is convenient for sampling.

[0028] In the figure: 1. base; 11. COD detector; 2. collection tube; 21. bottom plate; 22. carrying plate; 23. insert plate; 24. fixed frame; 25. water distribution plate; 26. impeller; 27. connection port; 3. collection tube; 31. rubber cover; 32. insert tube; 33. floating plate; 34. connecting rope; 4. hose; 41. bellows; 42. telescopic plate; 43. insert plate; 44. sliding frame; 45. fixed frame; 46. cable ring; 47. spring; 5. driving assembly; 51. first transmission belt; 52. shaft; 53. second transmission belt; 54. swivel; 55. gear ring; 56. connecting frame; 57. first bevel gear; 58. transmission gear; 59. second bevel gear; 510. cleaning tube; 511. connecting rod; 512. scraper; 513. filter plate; 514. sealing cover. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0030] See also Figures 1 to 8 The present invention provides a technical solution: a wastewater detection device that is convenient for sampling, comprising a base 1, a collection tube 2 is installed on the top of the base 1, the collection tube 2 comprises a bottom plate 21, the bottom plate 21 is fixed to the top of the base 1, and an insert plate 23 is fixed on the top of the bottom plate 21, a carrying plate 22 is provided between the bottom plate 21 and the insert plate 23, and a plurality of collection tubes 3 are symmetrically plugged on the surface of the carrying plate 22, the top of the collection tube 3 passes through the insert plate 23, and a water separation plate 25 is fixed at the center of the insert plate 23 , and the water distribution plate 25 is provided with a connection port 27 at a position corresponding to the collection pipe 3, the top of the water distribution plate 25 is connected with a hose 4, the other end of the hose 4 is fixed with a bellows 41, a fixing frame 24 is fixed to one side of the bottom plate 21, and two cable tie rings 46 are fixed to the top of the fixing frame 24, the hose 4 slides through the two cable tie rings 46, the impeller 26 is rotatably installed inside the center of the water distribution plate 25 through the bearing, the hose 4 is located at the top of the water distribution plate 25 and is provided with a drive assembly 5, the drive assembly The cleaning member 5 comprises a cleaning cylinder 510, which is fixed on the hose 4, and a filter plate 513 is fixed inside the cleaning cylinder 510. A rotating ring 54 is provided on the outside of the cleaning cylinder 510, and the rotating ring 54 is slidably sleeved on the surface of the hose 4. The rotating ring 54 is connected to the central axis of the impeller 26 by transmission. A COD detector 11 is fixedly installed at the rear end of the base 1. When using the device, the vertical pipe is inserted into the inside of the carrier plate 22, and a reaction liquid is added to the test tube in advance. The reaction liquid is a mixed liquid used for COD detection. The liquid is mixed with the waste water, which is the existing technology. Then, the upper end of the collection tube 3 is sealed by the sealing cover 514, and the position of the collected water is adjusted by the hose 4 and the bellows 41. The water is sent into the collection tube 3 through the water distribution plate 25. In this process, the driving component 5 cleans the inside of the cleaning cylinder 510 to prevent impurities from clogging the filter plate 513 and maintaining efficient collection work. After the collection is completed, the carrying plate is pushed upward to push the collection tube 3 out of the plug-in plate 23, and the collection tube 3 is removed and sent to the COD detector 11 for detection.

[0031] In this embodiment, a telescopic plate 42 is fixed to the top of the cable tie ring 46 on the upper end surface of the hose 4, and the telescopic plate 42 is fixedly plugged into the inside of the shaft fixing frame 45, and a sliding frame 44 is fixed to the extended end of the telescopic plate 42, and a plug-in plate 43 is slidably plugged into the inside of the sliding frame 44, and the bottom of the plug-in plate 43 is fixedly connected to the bottom of the bellows 41, and bolts are plugged into the outer side of the sliding frame 44 and the top of the storage port of the telescopic plate 42, and the position of the plug-in plate 43 and the extended end of the telescopic plate 42 are locked by bolts, and the two sets of cable tie rings 46 are fixed to each other. A spring 47 is fixed, and the other end of the spring 47 is squeezed and contacted with the bent end of the hose 4. The partial length of the hose 4 is limited between the two cable rings 46 and the spring 47. As a reserved length, the reserved length can be released by adjusting the length of the telescopic plate 42 to adjust the lateral position of the collection. The corrugated tube 41 connected to the other end of the hose 4 can pass through the inside of the sliding frame 44 along the plug plate 43 to adjust the depth of the collected water. It can be suitable for sample collection with various needs. A water pump is set at the connection end of the water distribution tray 25 and the hose 4 to pump water.

[0032] In this embodiment, the driving assembly 5 also includes a shaft 52, the outer side of the base plate 21 is rotatably mounted with the shaft 52 through a bearing seat, the bottom of the shaft 52 is mounted with a first transmission belt 51, and the top of the shaft 52 is mounted with a second transmission belt 53, the other side pulley of the first transmission belt 51 is connected to the central axis of the impeller 26, a connecting frame 56 is fixed to the side of the cable ring 46 at the upper end of the hose 4, the other end pulley of the second transmission belt 53 is mounted on the bottom of the connecting frame 56, a first bevel gear 57 is rotatably mounted at the position corresponding to the pulley on the top of the connecting frame 56 through a bearing, and the first bevel gear 57 is fixedly connected to the pulley of the second transmission belt 53, a second bevel gear 59 is rotatably mounted on the vertical surface of the connecting frame 56, the first bevel gear 57 is meshedly connected with the second bevel gear 59, a gear ring 55 is fixed on the outer surface of the rotating ring 54, a transmission gear 58 is fixed on the back of the second bevel gear 59, and the transmission gear 58 is meshedly connected with the gear ring 55, the cleaning cylinder 510 is facing one end of the rotating ring 54 The surface of the rotating ring 54 is rotatably mounted with a shaft ring, and connecting rods 511 are fixed on both sides of the rotating ring 54, and the connecting rods 511 penetrate into the cleaning cylinder 510 and are fixed with scrapers 512, and the scrapers 512 are in sliding contact with the surface of the filter plate 513. The bottom of the cleaning cylinder 510 is provided with a discharge port, and the surface of the discharge port of the cleaning cylinder 510 is sealed with a sealing cover 514. When the water flows into the water distribution plate 25, it will drive the impeller 26 to rotate, and the impeller 26 will introduce the water flow into each collection pipe 3, and at the same time, through the first transmission belt 51, the shaft The rod 52 and the second transmission belt 53 are driven, the first bevel gear 57 rotates and meshes with the second bevel gear 59, the transmission gear 58 meshes with the gear ring 55 to drive the rotating ring 54 to rotate, and the two connecting rods 511 connecting the rotating ring 54 and the cleaning cylinder 510 drive the scraper 512 to slide along the surface of the filter plate 513, and continuously clean the filter plate 513 to prevent clogging on the surface of the filter plate 513 and affecting the pass rate. After the collection of each group of collection tubes 3 is completed, the sealing cover 514 is opened to discharge the impurities in the cleaning cylinder 510.

[0033] In this embodiment, a rubber cover 31 is sleeved on the top of the collection tube 3, and a rubber insert 32 is provided on one side of the rubber cover 31 facing the connection port 27. The insert 32 is inserted into the connection port 27. Ropes 34 are fixed on both sides of the bottom of the rubber cover 31, and a floating plate 33 is fixed at the bottom of the rope 34. A through hole is opened at the center of the floating plate 33. In the initial state, the floating plate 33 is located at the bottom of the collection tube 3. The floating plate 33 itself is made of a foam plate with a lighter material, which can float on the top as water enters the collection tube 3. The sealing cover 514 is sleeved on the top of the collection tube 3, and the insert 32 is inserted into the connection port 27. The water distribution tray 25 sends the extracted water into each collection tube 3 through the connection port 27. As the water level in the collection tube 3 rises, the floating plate 33 moves upward until the position where the floating plate 33 is located blocks the insert 32. At this time, water cannot be added to the collection tube 3, which can avoid the problem of insufficient water or water overflow in the test tube.

[0034] When using the device, insert the vertical tube into the carrier plate 22, and add the reaction liquid into the test tube in advance. The reaction liquid is a mixture of the mixed liquid used for COD detection and wastewater. This part is the prior art. The sealing cover 514 is sleeved on the top of the collection tube 3, and the insert tube 32 is inserted into the connecting port 27. The water distribution plate 25 sends the extracted water into each collection tube 3 through the connecting port 27. As the water level in the collection tube 3 rises, the float plate 33 moves upward until the position where the float plate 33 is located blocks the insert tube 32. At this time, water cannot be added to the collection tube 3. The problem of insufficient water in the test tube or water overflow can be avoided. The length of the hose 4 is limited between the two cable rings 46 and the spring 47 as a reserved length. The reserved length can be released by adjusting the length of the telescopic plate 42 to adjust the lateral position of the collection. The corrugated tube 41 connected to the other end of the hose 4 can be passed through the inside of the slide frame 44 along the insert plate 43 to adjust the depth of the collected water. The water is sent into the collection tube 3 through the water separation tray 25. When the water flows into the water separation tray 25, the impeller 26 is driven to rotate. The impeller 26 introduces the water flow into each collection tube 3. At the same time, through the transmission of the first transmission belt 51, the shaft 52 and the second transmission belt 53, the first bevel gear 57 rotates and meshes with the second bevel gear 59. The transmission gear 58 meshes with the gear ring 55 to drive the rotating ring 54 to rotate. The two connecting rods 511 connected to the rotating ring 54 and the cleaning cylinder 510 drive the scraper 512 to slide along the surface of the filter plate 513 to continuously clean the filter plate 513 to prevent clogging on the surface of the filter plate 513 and affecting the pass rate. After the collection of each group of collection tubes 3 is completed, the sealing cover 514 is opened to discharge the impurities in the cleaning cylinder 510 to maintain efficient collection work. After the collection is completed, the carrying plate is pushed upward to push the collection tube 3 out of the insert tray 23, and the collection tube 3 is removed and sent to the COD detector 11 for detection.

[0035] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A wastewater detection device for convenient sampling, comprising a base (1), characterized in that: A collection tube (2) is installed on the top of the base (1), and the collection tube (2) comprises a bottom plate (21), the bottom plate (21) is fixed on the top of the base (1), and an insert plate (23) is fixed on the top of the bottom plate (21), a carrying plate (22) is provided between the bottom plate (21) and the insert plate (23), and a plurality of collection tubes (3) are symmetrically inserted at the center of a circle on the surface of the carrying plate (22), the top of the collection tube (3) passes through the insert plate (23), a water separation plate (25) is fixed at the center of the insert plate (23), and a connection port (27) is provided on the water separation plate (25) at a position corresponding to the collection tube (3), a hose (4) is connected to the top of the water separation plate (25), and a bellows (41) is fixed to the other end of the hose (4), and a fixing frame (27) is fixed on one side of the bottom plate (21). 4), and two cable ties (46) are fixed on the top of the fixing frame (24), the hose (4) slides through the two cable ties (46), an impeller (26) is rotatably mounted inside the center of the water separation plate (25) through a bearing, a driving assembly (5) is provided at a position of the hose (4) located at the top of the water separation plate (25), the driving assembly (5) comprises a cleaning cylinder (510), the cleaning cylinder (510) is fixed on the hose (4), a filter plate (513) is fixed inside the cleaning cylinder (510), a rotating ring (54) is provided on the outside of the cleaning cylinder (510), and the rotating ring (54) is slidably sleeved on the surface of the hose (4), the rotating ring (54) is transmission-connected to the central axis of the impeller (26), and a COD detector (11) is fixedly mounted at the rear end of the base (1).

2. A wastewater detection device for easy sampling according to claim 1, characterized in that: A telescopic plate (42) is fixed on the top of the cable tie ring (46) on the upper end surface of the hose (4), and the telescopic plate (42) is fixedly plugged into the inside of the shaft fixing frame (45), and a sliding frame (44) is fixed to the extended end of the telescopic plate (42), and a plug-in plate (43) is slidably plugged into the inside of the sliding frame (44), and the bottom of the plug-in plate (43) is fixedly connected to the bottom of the bellows (41).

3. A wastewater detection device for easy sampling according to claim 2, characterized in that: Bolts are inserted into the outer side of the sliding frame (44) and the top of the storage port of the telescopic plate (42), and the positions of the extended ends of the inserting plate (43) and the telescopic plate (42) are locked by bolts.

4. A wastewater detection device for easy sampling according to claim 3, characterized in that: A spring (47) is fixed between the two groups of the cable tie rings (46), and the other end of the spring (47) is in compression contact with the bent end of the hose (4).

5. A wastewater detection device for convenient sampling according to claim 1, characterized in that: The driving assembly (5) further comprises a shaft (52), the outer side of the base plate (21) being rotatably mounted with the shaft (52) via a bearing seat, the bottom of the shaft (52) being mounted with a first transmission belt (51), and the top of the shaft (52) being mounted with a second transmission belt (53), and the other side pulley of the first transmission belt (51) being connected to the central axis of the impeller (26).

6. A wastewater detection device for convenient sampling according to claim 5, characterized in that: A connecting frame (56) is fixed to the side of the cable tie ring (46) at the upper end of the hose (4); a pulley at the other end of the second transmission belt (53) is installed at the bottom of the connecting frame (56); a first bevel gear (57) is rotatably installed at a position corresponding to the pulley at the top of the connecting frame (56) through a bearing, and the first bevel gear (57) is fixedly connected to the pulley of the second transmission belt (53); a second bevel gear (59) is rotatably installed on the vertical surface of the connecting frame (56), and the first bevel gear (57) is meshingly connected with the second bevel gear (59).

7. A wastewater detection device for convenient sampling according to claim 6, characterized in that: A gear ring (55) is fixed on the outer surface of the rotating ring (54), a transmission gear (58) is fixed on the back side of the second bevel gear (59), and the transmission gear (58) is meshingly connected with the gear ring (55).

8. A wastewater detection device for convenient sampling according to claim 7, characterized in that: The cleaning cylinder (510) is rotatably mounted with an axial ring on the surface of one end of the rotating ring (54), connecting rods (511) are fixed on both sides of the rotating ring (54), and the connecting rods (511) penetrate into the cleaning cylinder (510) and are fixed with a scraper (512), and the scraper (512) is in sliding contact with the surface of the filter plate (513), and a discharge port is provided at the bottom of the cleaning cylinder (510), and a sealing cover (514) is sealed and covered on the surface of the discharge port of the cleaning cylinder (510).

9. A wastewater detection device for convenient sampling according to claim 1, characterized in that: The top of the collection tube (3) is sleeved with a rubber cover (31), and a rubber insert (32) is provided on the side of the rubber cover (31) facing the connection port (27), and the insert (32) is inserted into the connection port (27).

10. A wastewater detection device for convenient sampling according to claim 9, characterized in that: Connecting ropes (34) are fixed on both sides of the bottom of the rubber cover (31), and a floating plate (33) is fixed on the bottom of the connecting rope (34), and a through hole is opened at the center of the floating plate (33).

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