Sewage detection device and use method thereof

Abstract

The invention is applicable to the technical field of sewage detection, and provides a sewage detection device and a use method thereof, the sewage detection device comprises a shell, a sampling assembly and a detection assembly; the sampling assembly comprises a plurality of sampling pipes, a first compression spring, a push plate, a telescopic rod A, a telescopic rod B and an opening and closing structure, and the opening and closing structure comprises a sliding plate, a guide roller, a sealing belt, a winding roller, a volute spiral spring, a telescopic rod C, a rack and a gear. When the telescopic rod A and the telescopic rod B have the same telescopic quantity, the push plate is kept horizontal and synchronously adjusts the height positions of the top end openings of all the sampling pipes, so that sampling can be performed at the same depth, and when the telescopic rod A and the telescopic rod B have different telescopic quantities, the push plate is inclined, and the top end openings of the multiple sampling pipes can be positioned at different height positions; and the sampling depth can be adjusted by adjusting the expansion and contraction amount of the telescopic rod A and the telescopic rod B.

Description

Technical Field

[0001] The present invention belongs to the technical field of sewage detection, and in particular relates to a sewage detection device and a use method thereof. Background Art

[0002] Sewage testing is an important part of environmental protection today, such as sewage testing to prevent river pollution, sewage testing in sewage treatment plants and other aspects. When testing sewage, it is necessary to sample the sewage and then test it. The existing sewage testing sampling technology generally opens multiple sampling holes from top to bottom on the sampling tube to perform sampling at different depths. However, there is a problem with this. When sampling at multiple locations at the same depth is required, another sampling device needs to be replaced. Moreover, since the positions of the multiple sampling holes are fixed, the sampling depth cannot be adjusted relatively speaking. Summary of the invention

[0003] The present invention provides a sewage detection device, aiming to solve the above-mentioned problem.

[0004] The present invention is implemented in this way: a sewage detection device comprises:

[0005] A housing, wherein a mounting cavity and a detection cavity are provided in the housing, and the mounting cavity is located above the detection cavity;

[0006] A sampling assembly disposed in the mounting cavity;

[0007] A detection component disposed in the detection cavity;

[0008] The sampling assembly comprises:

[0009] A plurality of sampling tubes arranged vertically and spaced apart, wherein the top ends of the sampling tubes are open and extend above the shell;

[0010] A first compression spring sleeved on the sampling tube, wherein two ends of the first compression spring respectively contact the top of the housing and the bottom of the sampling tube;

[0011] A push plate is arranged at the lower side of the multiple sampling tubes, and the two ends of the push plate are respectively connected to a telescopic rod A and a telescopic rod B, and the two ends of the telescopic rod A are respectively hinged to the top of the shell and one end of the push plate, and one end of the telescopic rod B is fixedly connected to the top of the shell, and the other end is hinged to the other end of the push plate;

[0012] The opening and closing structure is used to open or close the top opening of the sampling tube.

[0013] Preferably, an adjustment mechanism is installed on the shell to adjust the distance between adjacent sampling tubes.

[0014] Preferably, the adjustment mechanism comprises:

[0015] A slide seat is arranged on the upper side of the shell and is sleeved on each sampling tube. The slide seat is slidably connected to the top of the shell. A slide groove for the slide seat to be slidably connected and a through groove for the sampling tube to move can be opened on the top of the shell;

[0016] A scissor-type mechanism connected between all the slide seats, wherein each middle hinge point of the scissor-type mechanism is hinged to a slide seat;

[0017] The adjusting screw rotatably mounted on the top of the shell body can be rotatably mounted through a bearing, and an internal thread sleeve is threadedly connected on the adjusting screw, and the internal thread sleeve is hinged to an upper hinge point adjacent to the scissor-fork mechanism.

[0018] Preferably, the opening and closing structure comprises:

[0019] A slide plate is provided between adjacent sampling tubes, the slide plate is slidably connected to the top of the shell, and each of the slide plates is slidably connected to a set of two upper and lower hinge points of the scissor mechanism;

[0020] The guide roller installed on the slide is rotated, and the height of the guide roller is lower than the top height of the sampling tube;

[0021] A sealing belt, one end of which is fixedly connected to one end of the top of the shell, a winding roller is rotatably installed at the other end of the top of the shell, the other end of the sealing belt alternately passes through the top of the sampling tube, bypasses the guide roller and is then fixedly connected to the winding roller, a volute spring is connected between the winding roller and the top of the shell, and the force of the volute spring on the winding roller makes it have a tendency to rewind the sealing belt;

[0022] A telescopic rod C is vertically fixed on the side wall of the shell, a rack is fixed on the top of the telescopic rod C, and one end of the winding roller is provided with a gear that can mesh with the rack.

[0023] Preferably, the bottom surface of the detection chamber is spherical, and the detection assembly includes a water quality detection component fixed to the upper side of the bottom of the detection chamber, the detection head of the water quality detection component extends to the bottom of the detection chamber, the bottom of the detection chamber is connected to a drain pipe, and a solenoid valve is installed on the drain pipe.

[0024] Preferably, an annular shell is provided at the bottom of the installation cavity below the push plate, and a plurality of sewage chambers and clean water chambers of the same number are circumferentially provided in the annular shell, the sewage chambers and the clean water chambers are adjacent to each other, and a clean water adding tube is connected to the top of each clean water chamber, the sewage chambers are the same in number and correspond one to one to the sampling tubes, the bottom end of the sampling tube is connected with the top of the corresponding sewage chamber through a hose, and a water outlet hole connected to the detection cavity is opened at the bottom of each sewage chamber and the clean water chamber, a sealing plate is provided on the upper side of the water outlet hole for sealing the water outlet hole, a support rod is fixed on the sealing plate, the diameter of the support rod is smaller than the water outlet hole, the bottom end of the support rod extends into the detection cavity and is fixed with a second protrusion, a second compression spring is sleeved on the rod section of the support rod located between the bottom of the annular shell and the second protrusion, a stepping motor is fixed at the center of the bottom of the annular shell, a mounting rod is fixed on the output shaft of the stepping motor, and a first protrusion for pushing the second protrusion upward is fixed on the end of the mounting rod away from the stepping motor, and the movement trajectory of the first protrusion passes through all the second protrusions.

[0025] Preferably, a regulating bag is provided in each sewage chamber, the regulating bag is connected with a connecting pipe, the connecting pipe is connected with the charging and discharging air pipe, the charging and discharging air pipe extends to the outside of the shell and is provided with a valve.

[0026] Preferably, a first airbag is provided in each clean water chamber, a piston cylinder is fixed on the top of the annular shell located above each clean water chamber, a piston is provided in the piston cylinder, a piston rod is vertically fixed on the piston, the piston rod passes through the top of the piston cylinder and extends above it, and a second airbag connected to the bottom of the piston cylinder is fixed on the top wall of the clean water chamber.

[0027] The present invention also provides a method for using the above-mentioned sewage detection device, comprising the following steps:

[0028] By adjusting the extension amount of the telescopic rod A4 and the telescopic rod B, the top ends of the multiple sampling tubes can be at the same depth or at different depths;

[0029] Open the top opening of the sampling tube through the opening and closing structure to take samples;

[0030] After sampling, the sample is tested by the detection component.

[0031] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0032] The sewage detection device provided by the present invention is provided with a shell, a sampling component and a detection component; the sampling component includes multiple sampling tubes, a first compression spring, a push plate, a telescopic rod A, a telescopic rod B and an opening and closing structure. When the telescopic rod A and the telescopic rod B have the same telescopic amount, the push plate remains horizontal and synchronously adjusts the height positions of the top openings of all sampling tubes, so that sampling can be performed at the same depth. When the telescopic amount of the telescopic rod A and the telescopic rod B is different, the push plate is tilted, so that the top openings of the multiple sampling tubes can be at different height positions, thereby sampling at different depths. By adjusting the telescopic amount of the telescopic rod A and the telescopic rod B, the sampling depth can be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of a sewage detection device provided by the present invention.

[0034] Figure 2 The present invention provides a schematic structural diagram of a sliding seat, a sliding plate and a guide roller in a sewage detection device.

[0035] Figure 3 yes Figure 1 Enlarged view of point A in .

[0036] Figure 4 yes Figure 1 Enlarged view of point B in .

[0037] Figure 5 It is a schematic diagram of the internal structure of an annular shell in a sewage detection device provided by the present invention.

[0038] Figure 6 It is a schematic diagram of the internal structure of a piston cylinder in a sewage detection device provided by the present invention.

[0039] Notes on the accompanying drawings: 1. Shell; 2. Push plate; 3. Telescopic rod C; 4. Telescopic rod A; 5. Winding roller; 6. Gear; 7. Volute spring; 8. Sealing belt; 9. Sliding seat; 10. Sampling tube; 11. Guide roller; 12. Slide plate; 13. Adjusting screw; 14. Internal threaded sleeve; 15. Scissor mechanism; 16. First compression spring; 17. Hose; 18. Annular shell; 19. Clean water chamber; 20. Support rod; 21. Stepping motor; 22. Water quality detection component; 23. Drain pipe; 24. Mounting rod; 25. First protrusion; 26. Second protrusion; 27. Piston cylinder; 28. First airbag; 29. ​​Second airbag; 30. Piston; 31. Extension spring; 32. Closing plate; 33. Second compression spring; 34. Sewage chamber; 35. Filling and discharging air pipe; 36. Connecting pipe; 37. Adjusting capsule. DETAILED DESCRIPTION

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0041] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0042] The embodiment of the present invention provides a sewage detection device, such as Figure 1-Figure 6 As shown, including:

[0043] A housing 1, wherein a mounting cavity and a detection cavity are provided in the housing 1, wherein the mounting cavity is located above the detection cavity, and the housing 1 can be raised and lowered manually or by other equipment, and lowered into the water when sampling;

[0044] A sampling assembly disposed in the mounting cavity;

[0045] A detection component disposed in the detection cavity;

[0046] The sampling assembly comprises:

[0047] A plurality of sampling tubes 10 arranged vertically and spaced apart, wherein the top ends of the sampling tubes 10 are open and extend above the housing 1;

[0048] A first compression spring 16 is sleeved on the sampling tube 10, wherein two ends of the first compression spring 16 are in contact with the top of the housing 1 and the bottom of the sampling tube 10 respectively;

[0049] A push plate 2 is arranged at the lower side of the plurality of sampling tubes 10, and the two ends of the push plate 2 are respectively connected with a telescopic rod A4 and a telescopic rod B, and the two ends of the telescopic rod A4 are respectively hinged to the top of the shell 1 and one end of the push plate 2, and one end of the telescopic rod B is fixedly connected to the top of the shell 1, and the other end is hinged to the other end of the push plate 2;

[0050] The opening and closing structure is used to open or close the top opening of the sampling tube 10 .

[0051] When sampling, when the telescopic rod A4 and the telescopic rod B have the same extension amount, the push plate 2 remains horizontal and the height position of the top openings of all sampling tubes 10 is adjusted synchronously, so that sampling can be carried out at the same depth. When the extension amount of the telescopic rod A4 and the telescopic rod B is different, the push plate 2 is tilted, so that the top openings of multiple sampling tubes 10 can be at different heights, thereby sampling at different depths. By adjusting the extension amount of the telescopic rod A4 and the telescopic rod B, the sampling depth can be adjusted.

[0052] Preferably, an adjustment mechanism is installed on the housing 1 for adjusting the distance between adjacent sampling tubes 10 .

[0053] Furthermore, the regulating mechanism comprises:

[0054] A slide seat 9 is arranged on the upper side of the housing 1 and is sleeved on each sampling tube 10. The slide seat 9 is slidably connected to the top of the housing 1. A slide groove for the slide seat 9 to be slidably connected and a through groove for the sampling tube 10 to move can be opened on the top of the housing 1.

[0055] A scissor mechanism 15 connected between all the slides 9, wherein each middle hinge point of the scissor mechanism 15 is hinged to one slide 9;

[0056] An adjusting screw 13 rotatably mounted on the top of the housing 1 can be rotatably mounted via a bearing, an internal thread sleeve 14 is threadedly connected to the adjusting screw 13, and the internal thread sleeve 14 is hinged to an upper hinge point adjacent to the scissor mechanism 15;

[0057] By rotating the adjusting screw 13, the adjusting screw 13 drives the internal threaded sleeve 14 to move, and the internal threaded sleeve 14 drives the scissor mechanism 15 to extend or shorten. The scissor mechanism 15 drives the sampling tube 10 to move through the slide 9 to adjust the distance between adjacent sampling tubes 10 to meet different sampling intervals.

[0058] In this embodiment, the opening and closing structure includes:

[0059] A slide plate 12 is provided between adjacent sampling tubes 10, the slide plate 12 is slidably connected to the top of the housing 1, each of the slide plates 12 is slidably connected to a set of two upper and lower hinge points of the scissor mechanism 15, and a movable groove for inserting and moving the hinge pin can be provided on the slide plate 12;

[0060] The guide roller 11 rotatably mounted on the slide plate 12 can be rotatably mounted via a bearing, and the height of the guide roller 11 is lower than the top height of the sampling tube 10;

[0061] A sealing belt 8, one end of which is fixedly connected to one end of the top of the shell 1, and a winding roller 5 is rotatably installed at the other end of the top of the shell 1. The other end of the sealing belt 8 alternately passes through the top of the sampling tube 10, bypasses the guide roller 11, and is then fixedly connected to the winding roller 5. A volute spring 7 is connected between the winding roller 5 and the top of the shell 1. The force of the volute spring 7 on the winding roller 5 makes it have a tendency to rewind the sealing belt 8, thereby tightening the sealing belt 8. The sealing belt 8 can be made of rubber;

[0062] A telescopic rod C3 vertically fixed on the side wall of the housing 1 can be fixed by screws, a rack is fixed on the top of the telescopic rod C3, and one end of the winding roller 5 is provided with a gear 6 that can mesh with the rack;

[0063] When the device enters the sewage, the sealing belt 8 seals the top opening of the sampling tube 10. Even if the position of the top of the sampling tube 10 is subsequently adjusted by the push plate 2, the force of the volute spring 7 on the winding roller 5 makes it tend to reel in the sealing belt 8, so that the sealing belt 8 is tensioned and the top opening of the sampling tube 10 can be kept sealed. When sampling, the telescopic rod C3 is extended to drive the rack to move upward and engage with the gear 6, so that the gear 6 drives the winding roller 5 to rotate and unwind the sealing belt 8. The sealing belt 8 is relaxed and there is a gap with the top opening of the sampling tube 10. The sewage enters the sampling tube 10 from the top opening of the sampling tube 10. By designing the opening and closing structure, the structure is simple and the top openings of multiple sampling tubes 10 can be closed or opened at the same time.

[0064] In this embodiment, the bottom surface of the detection chamber is spherical, and the detection assembly includes a water quality detection component 22 fixed on the upper side of the bottom of the detection chamber, which can be one or more detection devices in the prior art. The detection head of the water quality detection component 22 extends to the bottom of the detection chamber, and the bottom of the detection chamber is connected to a drain pipe 23, and a solenoid valve is installed on the drain pipe 23.

[0065] In a specific implementation, an annular shell 18 is provided at the bottom of the installation cavity below the push plate 2, and a plurality of sewage cavities 34 and clean water cavities 19 of the same number are provided in an annular direction in the annular shell 18. The sewage cavities 34 and the clean water cavities 19 are arranged adjacent to each other, and a clean water adding pipe is connected to the top of each clean water cavity 19. The sewage cavities 34 and the sampling tubes 10 are the same in number and correspond one to one. The bottom end of the sampling tube 10 is connected to the top of the corresponding sewage cavity 34 through a hose 17. A water outlet hole connected to the detection cavity is provided at the bottom of each sewage cavity 34 and the clean water cavity 19, and a sealing plate 32 is provided on the upper side of the water outlet hole for sealing the water outlet hole. A support rod 20 is fixed on the sealing plate 32, and the diameter of the support rod 20 is smaller than the water outlet. The bottom end of the support rod 20 extends into the detection cavity and is fixed with a second protrusion 26. The support rod 20 is located between the bottom of the annular shell 18 and the second protrusion 26 and is sleeved with a second compression spring 33. A stepper motor 21 is fixed to the bottom center of the annular shell 18, and a mounting rod 24 is fixed to the output shaft of the stepper motor 21. A first protrusion 25 for pushing the second protrusion 26 upward is fixed to the end of the mounting rod 24 away from the stepper motor 21, and the movement trajectory of the first protrusion 25 passes through all the second protrusions 26.

[0066] The stepper motor 21 is started to rotate, and the stepper motor 21 drives the first protrusion 25 to rotate through the mounting rod 24. The first protrusion 25 moves to the bottom of the second protrusion 26 of a sewage chamber 34, and the second protrusion 26 is pushed upward. The second protrusion 26 drives the sealing plate 32 to move upward through the support rod 20 to open the water outlet hole. Then the water in the sewage chamber 34 flows into the detection chamber through the water outlet hole, and is detected by the water quality detection component 22. The sewage in multiple sewage chambers 34 can be detected separately. After the sewage in one sewage chamber 34 is detected, the solenoid valve on the drain pipe 23 is opened to discharge the detected sewage. Then the stepper motor 21 drives the first protrusion 25 to move to the bottom of the second protrusion 26 of the adjacent clean water chamber 19 through the mounting rod 24, and the water outlet hole of the adjacent clean water chamber 19 is opened. Clean water flows into the detection chamber to clean the interior, and then is discharged from the drain pipe 23, reducing interference between sewage, facilitating the detection of sewage in the next sewage chamber 34, and improving detection accuracy.

[0067] Furthermore, each sewage chamber 34 is provided with an adjusting capsule 37, and a connecting pipe 36 is connected to the adjusting capsule 37, and the connecting pipe 36 is connected to the charging and discharging air pipe 35. The charging and discharging air pipe 35 extends to the outside of the shell 1 and is provided with a valve to facilitate the charging and discharging of the adjusting capsule 37, thereby adjusting the volume of the sewage chamber 34 and adjusting the sampling amount.

[0068] Furthermore, each clean water chamber 19 is provided with a first airbag 28, and the first airbag 28 can be adhered to the side wall of the clean water chamber 19. The top of the annular shell 18 is located above each clean water chamber 19 and a piston 30 cylinder 27 is fixed thereon. A piston 30 is provided in the piston 30 cylinder 27, and a piston 30 rod is vertically fixed on the piston 30. The piston 30 rod passes through the top of the piston 30 cylinder 27 and extends above it. A second airbag 29 connected to the bottom of the piston 30 cylinder 27 is fixed to the top wall of the clean water chamber 19 and can be glued thereon.

[0069] When the sampling is completed, the telescopic rod A4 and the telescopic rod B extend to drive the push plate 2 to reset, and the push plate 2 squeezes the piston 30 to drive the piston 30 to move downward. The air in the piston 30 cylinder 27 enters the second airbag 29, and the volume of the second airbag 29 increases, so that the water pressure in the clean water chamber 19 increases. After the sewage detection is completed, after the water outlet of the clean water chamber 19 is opened, the clean water is sprayed out from the water outlet, hits the second convex head 26 and disperses to the surroundings, and the cleaning effect is better.

[0070] In summary, the present invention provides a sewage detection device, the working principle of which is as follows: the device is placed in sewage for sampling, the telescopic rod A4 and the telescopic rod B can be controlled to have the same telescopic amount, so that the push plate 2 remains horizontal and the height positions of the top openings of all sampling tubes 10 are adjusted synchronously, so that sampling can be performed at the same depth, and the telescopic rod A4 and the telescopic rod B can be controlled to have different telescopic amounts, so that the push plate 2 is tilted, so that the top openings of multiple sampling tubes 10 can be at different height positions, so that sampling can be performed at different depths, and the telescopic rod A4 and the telescopic rod B can be adjusted synchronously. The extension and retraction of rod B can adjust the sampling depth. The extension of telescopic rod C3 drives the rack to move upward and mesh with gear 6, so that gear 6 drives the roller 5 to rotate and unwind the sealing belt 8. The sealing belt 8 is relaxed and there is a gap with the top opening of the sampling tube 10. The sewage enters the sampling tube 10 from the top opening of the sampling tube 10, and clean water is added to the clean water chamber 19 through the clean water adding tube. After the sampling is completed, the device is lifted out of the sewage surface, and the extension of telescopic rod A4 and telescopic rod B drives the push plate 2 to reset. The push plate 2 squeezes the piston 30 and drives the piston 30 to move downward. The air in the plug 30 cylinder 27 enters the second airbag 29, and the volume of the second airbag 29 increases, so that the water pressure in the clean water chamber 19 increases, and the stepper motor 21 is started to rotate. The stepper motor 21 drives the first protrusion 25 to rotate through the mounting rod 24. The first protrusion 25 moves to the bottom of the second protrusion 26 of a sewage chamber 34, and pushes the second protrusion 26 upward. The second protrusion 26 drives the sealing plate 32 to move upward through the support rod 20, and the water outlet is opened. Then, the water in the sewage chamber 34 flows into the detection chamber through the water outlet, and is detected by the water quality detection component 22. The detection can detect the sewage in multiple sewage chambers 34 respectively. After the sewage in one sewage chamber 34 is detected, the solenoid valve on the drain pipe 23 is opened to discharge the detected sewage, and then the stepper motor 21 drives the first convex head 25 to move to the bottom of the second convex head 26 of the adjacent clean water chamber 19 through the mounting rod 24, and the water outlet of the adjacent clean water chamber 19 is opened, and the clean water flows into the detection chamber to clean the inside, and then is discharged from the drain pipe 23, thereby reducing the interference between the sewage, facilitating the detection of the sewage in the next sewage chamber 34, and improving the detection accuracy.

[0071] It should be noted that, for the above embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described order of actions, because according to the present invention, some steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

[0072] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. A sewage detection device, comprising: A housing, wherein a mounting cavity and a detection cavity are provided in the housing, and the mounting cavity is located above the detection cavity; A sampling assembly disposed in the mounting cavity; A detection component disposed in the detection cavity; Characterized in that the sampling component comprises: A plurality of sampling tubes arranged vertically and spaced apart, wherein the top ends of the sampling tubes are open and extend above the shell; A first compression spring sleeved on the sampling tube, wherein two ends of the first compression spring respectively contact the top of the housing and the bottom of the sampling tube; A push plate is arranged at the lower side of the multiple sampling tubes, and the two ends of the push plate are respectively connected to a telescopic rod A and a telescopic rod B, and the two ends of the telescopic rod A are respectively hinged to the top of the shell and one end of the push plate, and one end of the telescopic rod B is fixedly connected to the top of the shell, and the other end is hinged to the other end of the push plate; The opening and closing structure is used to open or close the top opening of the sampling tube.

2. The sewage detection device according to claim 1, characterized in that: An adjusting mechanism is installed on the shell body for adjusting the distance between adjacent sampling tubes.

3. The sewage detection device according to claim 2, characterized in that: The regulating mechanism comprises: A slide seat is arranged on the upper side of the shell and is sleeved on each sampling tube. The slide seat is slidably connected to the top of the shell. A slide groove for the slide seat to be slidably connected and a through groove for the sampling tube to move can be opened on the top of the shell; A scissor-type mechanism connected between all the slide seats, wherein each middle hinge point of the scissor-type mechanism is hinged to a slide seat; The adjusting screw rotatably mounted on the top of the shell body can be rotatably mounted through a bearing, and an internal thread sleeve is threadedly connected on the adjusting screw, and the internal thread sleeve is hinged to an upper hinge point adjacent to the scissor-fork mechanism.

4. The sewage detection device according to claim 1, characterized in that: The opening and closing structure comprises: A slide plate is provided between adjacent sampling tubes, the slide plate is slidably connected to the top of the shell, and each of the slide plates is slidably connected to a set of two upper and lower hinge points of the scissor mechanism; The guide roller installed on the slide is rotated, and the height of the guide roller is lower than the top height of the sampling tube; A sealing belt, one end of which is fixedly connected to one end of the top of the shell, a winding roller is rotatably installed at the other end of the top of the shell, the other end of the sealing belt alternately passes through the top of the sampling tube, bypasses the guide roller and is then fixedly connected to the winding roller, a volute spring is connected between the winding roller and the top of the shell, and the force of the volute spring on the winding roller makes it have a tendency to rewind the sealing belt; A telescopic rod C is vertically fixed on the side wall of the shell, a rack is fixed on the top of the telescopic rod C, and one end of the winding roller is provided with a gear that can mesh with the rack.

5. The sewage detection device according to claim 1, characterized in that: The bottom surface of the detection chamber is spherical, and the detection assembly includes a water quality detection component fixed on the upper side of the bottom of the detection chamber. The detection head of the water quality detection component extends to the bottom of the detection chamber. The bottom of the detection chamber is connected to a drain pipe, and a solenoid valve is installed on the drain pipe.

6. The sewage detection device according to claim 5, characterized in that: The bottom of the installation cavity is located below the push plate and an annular shell is provided, wherein the annular shell has a plurality of sewage chambers and clean water chambers of the same number in an annular direction, the sewage chambers and the clean water chambers are adjacent to each other, the top of each clean water chamber is connected to a clean water adding tube, the sewage chambers are the same in number and correspond one to one to the sampling tubes, the bottom end of the sampling tube is connected to the top of the corresponding sewage chamber through a hose, and each sewage chamber and the bottom of the clean water chamber is provided with a water outlet connected to the detection cavity, a sealing plate is provided on the upper side of the water outlet hole for sealing the water outlet hole, a support rod is fixed on the sealing plate, the diameter of the support rod is smaller than the water outlet hole, the bottom end of the support rod extends into the detection cavity and is fixed with a second protrusion, a second compression spring is sleeved on the rod section of the support rod located between the bottom of the annular shell and the second protrusion, a stepping motor is fixed at the center of the bottom of the annular shell, a mounting rod is fixed on the output shaft of the stepping motor, and a first protrusion for pushing the second protrusion upward is fixed on the end of the mounting rod away from the stepping motor, and the movement trajectory of the first protrusion passes through all the second protrusions.

7. The sewage detection device according to claim 6, characterized in that: A regulating bag is arranged in each sewage cavity, and a connecting pipe is connected to the regulating bag. The connecting pipe is connected to the charging and discharging air pipe, and the charging and discharging air pipe extends to the outside of the shell and is provided with a valve.

8. The sewage detection device according to claim 7, characterized in that: A first airbag is provided in each clean water chamber, a piston cylinder is fixed on the top of the annular shell located above each clean water chamber, a piston is provided in the piston cylinder, a piston rod is vertically fixed on the piston, the piston rod passes through the top of the piston cylinder and extends above it, and a second airbag connected to the bottom of the piston cylinder is fixed on the top wall of the clean water chamber.

9. The method for using the sewage detection device according to any one of claims 1 to 8, characterized in that: The steps include: By adjusting the extension amount of the telescopic rod A4 and the telescopic rod B, the top ends of the multiple sampling tubes can be at the same depth or at different depths; Open the top opening of the sampling tube through the opening and closing structure to take samples; After sampling, the sample is tested by the detection component.

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