A controllable submersible sewage sludge collection device

Abstract

This invention discloses a controllable submersible sewage sludge collection device, relating to the field of sludge collection technology. It includes a supporting body, the top surface of which is divided into a sealed control chamber and an open sludge extraction chamber by a partition. A rotating outer tube is rotatably mounted within the sealed control chamber, and a drive engagement assembly for rotating the outer tube is also provided within the sealed control chamber. A screw is threadedly inserted into the inner part of the rotating outer tube. A limit measuring rod is vertically fixed to the top surface of the supporting body. A slider is slidably fitted onto the limit measuring rod at the top of the screw. An installation cylinder is coaxially fixed to the bottom end of the screw. A sludge collection box is sleeved on the outer side of the bottom end of the installation cylinder. A sludge collection cylinder is coaxially fixed to the bottom end of the installation cylinder, and a sludge collection assembly is connected between the installation cylinder and the sludge collection cylinder. This invention provides more convenient sludge collection and allows for precise adjustment of the sludge collection depth to meet the needs of sludge collection at different depths.

Description

Technical Field

[0001] This invention relates to the field of sludge collection technology, and in particular to a controllable submersible sewage sludge collection device. Background Technology

[0002] Sludge is the sediment that settles at the bottom of sewage. This sediment is an extremely complex homogeneous body composed of organic debris, bacterial cells, inorganic particles, colloids, and other substances. Because sludge contains a large amount of decaying matter and bacteria, it is necessary to collect and sample sludge during sewage treatment. After testing the substances contained in the sludge, targeted treatment can be carried out, such as choosing between incineration and landfill, and the location of the landfill. This also provides guidance for the treatment and utilization of sludge and subsequent sewage treatment processes.

[0003] Currently, sludge sampling is mainly done manually using various buckets, shovels, and buckets. This method requires a large amount of labor and is time-consuming and labor-intensive. Some sampling methods using collection devices, such as the one described in authorization announcement CN208476592U (a bottom sludge collection device), include a support platform and a sludge collection mechanism. One surface of the support platform is fixedly connected to the sludge collection mechanism, which includes a housing with a spring fixedly connected to one surface. This device uses a hydraulically retractable sleeve to submerge the collection equipment in the wastewater, and then collects the sludge. However, during the entire collection process, the depth of the collection equipment during hydraulic retraction is difficult to control, making it impossible to accurately determine the required depth. This leads to data mismatches when testing the collected sludge. Furthermore, the device lacks protection during the downward pressure process, and it is easily damaged when encountering stones or other impurities. Summary of the Invention

[0004] The purpose of this invention is to solve the problem in the prior art that the collection depth cannot be accurately located as needed, resulting in data mismatch during the detection of the collected sludge, and to propose a controllable submersible sewage sludge collection device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a controllable submersible sewage sludge collection device, comprising a supporting body, the top surface of which is divided into a sealed control chamber and an open sludge pumping chamber by a partition, a screw is provided on the sealed control chamber, an installation cylinder is coaxially fixedly connected to the bottom end of the screw, a sludge collection box is sleeved on the outer side of the bottom end of the installation cylinder, a sludge collection cylinder is coaxially fixedly connected to the bottom end of the installation cylinder, and a sludge collection assembly is connected between the installation cylinder and the sludge collection cylinder, and a sludge pump is installed in the open sludge pumping chamber, and a sludge pumping pipe is provided on the sludge pump;

[0006] The mud collection box includes an upper sealing assembly and a lower sealing assembly. The upper sealing assembly and the lower sealing assembly are sealed and connected by multiple sealing plates to form a sealed space. The upper sealing assembly includes a flexible bladder. The flexible bladder is provided with an installation cylinder. The installation cylinder extends through the flexible bladder into the interior of the mud collection box. The flexible bladder is provided with upper fixing plates on both sides and is connected to the sealing plate through the upper fixing plates. The two ends of the flexible bladder that are not connected to the upper fixing plates are provided with longitudinal limiting rods. One end of the longitudinal limiting rod extends through the flexible bladder and is rotatably connected to the installation cylinder, and the other end is rotatably connected to the sealing plate.

[0007] The lower sealing assembly includes a lower fixing plate. A limiting plate is provided at one end of the lower fixing plate near the mud collection cylinder. The lower fixing plate has a hollow structure and is equipped with a solenoid valve. A limiting groove is formed inside the limiting plate. One end of the limiting groove is connected to the inner cavity of the lower fixing plate through a differential pressure regulating valve. A spring is provided at one end of the limiting groove near the lower fixing plate. The end of the spring away from the lower fixing plate is connected to one end of a transverse limiting rod. The other end of the transverse limiting rod passes through an air bladder and is connected to the mud collection cylinder.

[0008] Preferably, the drive engagement assembly includes a first motor fixedly installed in a sealed control cavity and two bevel gears. The two bevel gears are respectively fitted onto the output shaft of the first motor and the outer side of the rotating outer tube, and the two bevel gears mesh with each other.

[0009] Preferably, the screw is hollow inside, and the slider at the top of the screw has a through hole that communicates with the inside of the screw.

[0010] Preferably, the upper end of the mud collection box is sealed on the outside of the mounting cylinder, the lower end of the mud collection box is sealed on the mud collection cylinder, and a mud discharge pipe extending into the bottom of the mud collection box is inserted into one side of the top of the mud collection box, and the mud discharge pipe is connected to the mud extraction pipe.

[0011] Preferably, a water inlet pipe is installed on the other side of the top of the mud collection box, and a mud discharge pipe is installed at the bottom of the side of the mud collection box. Both the water inlet pipe and the mud discharge pipe are connected to the inside of the mud collection box, and a pipe plug is installed at the pipe opening.

[0012] Preferably, each of the four corners of the bottom surface of the mud collection box is equipped with a light, and cameras are installed inside the four lights on both sides of the mud collection cylinder. A display screen that is electrically connected to the cameras is hinged to the top of the supporting body.

[0013] Preferably, the mud-collecting assembly includes a second motor installed inside the mounting cylinder and a mud-collecting auger installed inside the mud-collecting cylinder, wherein the output shaft of the second motor is coaxially and fixedly connected to the mud-collecting auger.

[0014] Preferably, the top two sides of the mud-collecting cylinder have symmetrical mud outlets located inside the mud-collecting box, and the bottom end of the mud-collecting auger is coaxially and fixedly connected to a drill bit.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. This invention, by installing a rotating outer tube, screw, drive engagement assembly, and limiting measuring rod inside the supporting body, allows the drive engagement assembly to work when sludge collection is needed. This drives the screw to move vertically downwards and simultaneously moves the collection assembly downwards, enabling the sludge collection assembly, sludge collection box, and sludge collection cylinder to submerge. This allows for the collection of sewage and sludge at a certain depth, making collection more convenient and enabling precise adjustment of the sludge collection depth to meet the sludge collection needs at different depths.

[0017] 2. This invention connects one end of the mud outlet pipe located inside the mud collection box to an electromagnetic valve on the lower fixed plate. During the descent, the gas inside the lower fixed plate is extracted, causing the lateral limit rod to move and release the restriction on the inner cylinder. The inner cylinder is then pulled downward by an electromagnet and sealed to the drill bit, thereby preventing sewage and sludge encountered by the device during descent from entering the mud collection box from the mud collection tube, which would affect the detection of sewage and sludge at the required depth.

[0018] 3. This invention connects one end of the mud discharge pipe inside the mud collection box to a solenoid valve on the lower fixed plate. When the camera detects foreign objects covering the mud collection box during descent, the rotation direction of the mud pump is adjusted. This allows outside air to enter the lower fixed plate and pushes the lateral limiting rod fully into the airbag, releasing the restriction on the mud collection box and causing it to rotate vertically to remove the foreign objects. This solves the problem of the camera 19 being obstructed during descent, preventing operators from assessing the underwater situation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a cross-sectional schematic diagram of the support device of the present invention;

[0021] Figure 3 This is a schematic diagram of the screw and mud collection box structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the bottom structure of the mud collection box of the present invention;

[0023] Figure 5 This is a cross-sectional view of the internal structure of the mud collection box of the present invention;

[0024] Figure 6 This is a schematic diagram of the overall structure of the lower sealing assembly of the present invention;

[0025] Figure 7 This is a schematic diagram of the overall structure of the sealing assembly of the present invention;

[0026] Figure 8 This is a cross-sectional schematic diagram of the sealing assembly of the present invention;

[0027] Figure 9 This is a cross-sectional schematic diagram of the sealing assembly of the present invention.

[0028] In the diagram: 1. Supporting body; 2. Sealed control chamber; 3. Open sludge suction chamber; 4. Rotating outer pipe; 5. First motor; 6. Bevel gear; 7. Screw; 8. Limit measuring rod; 9. Mounting cylinder; 10. Sludge collection box; 11. Sludge collection cylinder; 1101. Outer cylinder; 1102. Inner cylinder; 12. Sludge discharge pipe; 13. Sludge suction pipe; 14. Display screen; 15. Sludge pump; 16. Sludge discharge pipe; 17. Water inlet pipe; 18. Photograph. 19. Light; 20. Camera; 21. Mud outlet; 22. Mud extraction auger; 23. Second motor; 24. Drill bit; 25. Upper sealing assembly; 26. Upper fixing plate; 27. Flexible bladder; 28. Longitudinal limiting rod; 29. ​​Lower sealing assembly; 20. Lower fixing plate; 21. Limiting plate; 22. Limiting groove; 23. Spring; 24. Lateral limiting rod; 25. Airbag. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0030] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0031] Example 1

[0032] Reference Figure 1-2A controllable submersible sewage sludge collection device includes a supporting body 1, which can be designed as a boat-shaped structure or fixed to a hull to fix the position of the supporting body 1 and ensure that shaking during sludge collection is minimized. The top surface of the supporting body 1 is divided into a sealed control chamber 2 and an open sludge extraction chamber 3 by a partition. The partition includes the entire sealed control chamber 2 to prevent water droplets from seeping into the sealed control chamber 2. A rotating outer tube 4 is rotatably installed inside the sealed control cavity 2 in the middle of the bearing body 1. The bottom end of the rotating outer tube 4 is rotatably connected to the bottom wall inside the bearing body 1, and the top end of the rotating outer tube 4 is rotatably connected to the top wall of the partition. A drive engagement assembly for driving the rotating outer tube 4 to rotate is also provided in the sealed control cavity 2. A screw 7 is threaded through the rotating outer tube 4. A limit measuring rod 8 is vertically fixed on the top surface of the bearing body 1. A slider is connected to the top end of the screw 7 and slides on the limit measuring rod 8. The limit measuring rod 8 and the slider limit the screw 7, so that the screw 7 only moves in the vertical direction. Thus, when the rotating outer tube 4 rotates, the screw 7 can be raised and lowered. The limit measuring rod 8 is provided with a scale, which also makes it convenient to observe the distance of the screw 7 rising and falling by the slider. The bottom end of the screw 7 is coaxially fixedly connected to the mounting cylinder 9. The bottom outer side of the mounting cylinder 9 is sleeved with a sludge collection box 10. The bottom end of the mounting cylinder 9 is coaxially fixedly connected to the sludge collection cylinder 11. A sludge collection component is connected between the mounting cylinder 9 and the sludge collection cylinder 11. When collecting sludge, the sludge collection component sends the sludge into the sludge collection box 10. A sludge pump 15 is installed in the open sludge extraction chamber 3. The sludge pump 15 is equipped with a sludge extraction pipe 13, which is connected to the sludge collection box 10, so that the sludge pump 15 can extract the sludge in the sludge collection box 10.

[0033] Reference Figure 1-2 The drive engagement assembly includes a first motor 5 fixedly installed inside the sealed control cavity 2 and two bevel gears 6. The two bevel gears 6 are respectively fitted onto the output shaft of the first motor 5 and the outside of the rotating outer tube 4, and the two bevel gears 6 mesh with each other. The screw 7 is hollow inside, and the slider at the top of the screw 7 has a wire hole that communicates with the inside of the screw 7, allowing the wire to extend from the screw 7 to the mounting cylinder 9, the mud sampling cylinder 11, and the mud collection box 10 to supply power to the mounting cylinder 9, the mud sampling cylinder 11, and the mud collection box 10, while preventing the wire from being damaged in sewage.

[0034] Reference Figure 3-5 The upper end of the mud collection box 10 is sealed on the outside of the mounting cylinder 9, and the lower end of the mud collection box 10 is sealed on the mud collection cylinder 11 to ensure the sealing inside the mud collection box 10 and prevent sewage from seeping into the mud collection box 10 during the collection process, which would affect the detection of sludge. The top side of the mud collection box 10 is connected to a mud discharge pipe 12 that extends into the bottom of the mud collection box 10. The mud discharge pipe 12 is connected to the mud pumping pipe 13 to facilitate the mud pumping pump 15 to perform mud pumping.

[0035] To facilitate the treatment of residual sludge in the mud collection box 10 after each mud collection to avoid affecting the test data during the next collection, a water inlet pipe 17 is installed on the other side of the top of the mud collection box 10, and a mud discharge pipe 16 is installed at the bottom side of the mud collection box 10. Both the water inlet pipe 17 and the mud discharge pipe 16 are connected to the inside of the mud collection box 10, and each pipe opening is equipped with a pipe plug. Water is injected through the water inlet pipe 17 to discharge the residual sludge from the mud discharge pipe 16.

[0036] Meanwhile, to prevent damage to the equipment during the mud extraction process, lighting lamps 18 are installed at the four corners of the bottom surface of the mud collection box 10, and cameras 19 are installed inside the four lighting lamps 18 on both sides of the mud extraction cylinder 11. A display screen 14, which is electrically connected to the camera 19, is hinged to the top of the supporting body 1. When the lighting lamps 18, cameras 19 and display screen 14 are powered on, the camera 19 can transmit the status of the diving process to the display screen 14 in a timely manner, so that the mud extraction workers can carry out mud extraction operations based on the video transmitted by the camera 19.

[0037] Reference Figure 5-6 The sludge extraction assembly includes a second motor 22 installed inside the installation cylinder 9 and a sludge extraction auger 21 installed inside the sludge extraction cylinder 11. The output shaft of the second motor 22 is coaxially and fixedly connected to the sludge extraction auger 21, enabling the second motor 22 to drive the sludge extraction auger 21 to rotate and transport the sludge upward from the bottom end of the sludge extraction auger 21. The top two sides of the sludge extraction cylinder 11 have symmetrical sludge outlets 20 inside the sludge collection box 10. During the upward transport of the sludge, it is easy for the sludge to enter the sludge collection box 10 through the sludge outlets 20. The bottom end of the sludge extraction auger 21 is coaxially and fixedly connected to a drill bit 23 to prevent the sludge extraction auger 21 from directly contacting rocks and other impurities when it descends, which would affect the sludge extraction process.

[0038] When collecting sewage and sludge at different depths, the carrier body 1 is first moved to the water surface above the collection area, or onto a boat hull on the water surface. After the carrier body 1 is fixed, the lighting 18, camera 19, display screen 14, and first motor 5 are activated. The lighting 18, camera 19, and display screen 14 are used to display the real-time status of the collection component and mud collection tube 11 as they descend. The first motor 5 drives the two bevel gears 6 to rotate synchronously, and simultaneously drives the rotating outer tube 4 to rotate. While the rotating outer tube 4 is rotating, its position remains stationary. At the same time, the screw 7 inside the rotating outer tube 4 is restricted to the vertical direction by the slider and the limiting measuring rod 8, causing the screw 7 to move downward inside the rotating outer tube 4, and driving the mud collection tube 11, collection component, and mud collection box 10 to descend. During the descent, the initial depth is determined by the initial positions of the collection box, collection components, and mud collection cylinder 11, as well as the initial position of the slider on the limit measuring rod 8. Then, the descent depth is judged by observing the height of the slider's movement. When the collection depth is reached, the first motor 5 is turned off and the second motor 22 is started. At this time, the second motor 22 drives the mud collection auger 21 to rotate. The rotation of the mud collection auger 21 transports the sludge at the bottom upward and into the mud collection cylinder 11 until the sludge enters the mud collection box 10 through the mud outlet 20. When the sludge accumulates in the mud collection box 10, the mud pump 15 can be started directly. The mud pump 15 drives the mud pumping pipe 13 and the mud outlet pipe 12 to pump the sludge in the mud collection box 10 and directly transport the collected sludge upward. Subsequent mud collection can continue until the mud collection work is completed.

[0039] Example 2

[0040] In actual use, when it is necessary to collect sludge and sewage at a certain depth, the operator found that because the sludge collecting auger 21 and the sludge collection box 10 are always in a connected state, and as the sludge collecting auger 21 moves downward, sewage and sludge will enter the sludge collection box 10 through the sludge collecting auger 21. When the sludge collecting auger 21 dives to the required depth and collects, the sewage and sludge at the required depth will mix with the sewage and sludge that have entered the sludge collection box 10 in advance, affecting subsequent detection. Therefore, in order to solve the above technical problems, the device is improved according to the method described in this embodiment.

[0041] like Figure 5-9 As shown, the mud collection box 10 includes an upper sealing assembly 24 and a lower sealing assembly 25. The upper sealing assembly 24 and the lower sealing assembly 25 are connected by multiple sealing plates to form a sealed space.

[0042] The upper sealing assembly 24 includes a flexible bladder 2402. The flexible bladder 2402 is provided with an installation cylinder 9. The installation cylinder 9 penetrates the flexible bladder 2402 and extends into the mud collection box 10. The flexible bladder 2402 is provided with upper fixing plates 2401 on both sides and is connected to the sealing plate through the upper fixing plates 2401. The two ends of the flexible bladder 2402 that are not connected to the upper fixing plates 2401 are provided with longitudinal limiting rods 2403. One end of the longitudinal limiting rod 2403 is rotatably connected to the flexible bladder 2402 and the installation cylinder 9, and the other end is rotatably connected to the sealing plate.

[0043] The lower sealing assembly 25 includes a lower fixing plate 2501. A limiting plate 2502 is provided at one end of the lower fixing plate 2501 near the mud collection cylinder 11. The lower fixing plate 2501 has a hollow structure and is equipped with a solenoid valve. A limiting groove 2503 is formed in the limiting plate 2502. One end of the limiting groove 2503 is connected to the inner cavity of the lower fixing plate 2501 through a differential pressure regulating valve. A spring 2504 is provided at one end of the limiting groove 2503 near the lower fixing plate 2501. The end of the spring 2504 away from the lower fixing plate 2501 is connected to one end of a transverse limiting rod 2505. The other end of the transverse limiting rod 2505 passes through the airbag 2506 and is connected to the mud collection cylinder 11.

[0044] The mounting cylinder 9 is connected to the mud collection box 10 by the longitudinal limiting rod 2403 set in the upper sealing assembly 24. Since the mounting cylinder 9 is fixedly connected to the screw 7, the mud collection box 10 is restricted from rotating in the horizontal direction with the mounting cylinder 9 as the center. At the same time, since one end of the transverse limiting rod 2505 is connected to the mud collection cylinder 11 and the other end extends into the limiting groove 2503, the vertical rotation of the mud collection box 10 is restricted, so that the mud collection box 10 remains stable during use.

[0045] The mud-collecting cylinder 11 includes an outer cylinder 1101 and an inner cylinder 1102. The outer cylinder 1101 is sleeved on the outside of the inner cylinder 1102. The inner cylinder 1102 and the outer cylinder 1101 are provided with alternating air vents. The air vent of the inner cylinder 1102 is provided with a solenoid valve. The drill bit 23 is provided with an electromagnet.

[0046] First, before the device needs to be controlled to submerge, connect one end of the mud discharge pipe 12 inside the mud collection box 10 to the solenoid valve on the lower fixed plate 2501, and control the solenoid valve to open, connecting the inner cavity of the lower fixed plate 2501 to the outside through the mud discharge pipe 12. Then, control the mud pump 15 to rotate, extracting the gas inside the lower fixed plate 2501, so that the air pressure inside the lower fixed plate 2501 is less than the air pressure inside the limiting groove 2503. In this state, the differential pressure regulating valve will open, connecting the lower fixed plate 2501 to the limiting groove 2503, and the suction force of the mud pump 15 will be controlled to keep the lower fixed plate 2501... When the internal air pressure reaches the first preset value, the lateral limit rod 2505 moves in a stage towards the lower fixed plate 2501 under the suction force of the mud pump 15. The end of the lateral limit rod 2505 away from the lower fixed plate 2501 will move to the outer cylinder 1101 and release the restriction on the inner cylinder 1102. At the same time, the electromagnet located on the drill bit 23 is activated to pull the inner cylinder 1102 downward and seal the inner cylinder 1102 with the drill bit 23, thereby preventing sewage and sludge encountered by the device during the diving process from entering the mud collection box 10 from the mud collection cylinder 11, which would affect the detection of sewage and sludge at the required depth.

[0047] Secondly, during the device's descent, the camera 19 positioned below the mud collection box 10 observes the situation below. If debris in the water obstructs the camera 19 or if too much debris is entangled in the mud collection box 10, the mud pump 15 is reversed, allowing outside air to enter the lower fixed plate 2501 through the mud suction pipe 13 and the mud discharge pipe 12. Since the air pressure on one side of the lower fixed plate 2501 is greater than the air pressure in the limiting groove 2503, the differential pressure regulating valve opens, connecting the lower fixed plate 2501 to the limiting groove 2503. Because the air pressure on one side of the lower fixed plate 2501 is greater than the air pressure in the limiting groove 2503, the air entering the lower fixed plate 2501 pushes the transverse limiting rod 2505 towards the outer cylinder 1101 in a second-stage movement, bringing the transverse limiting rod 2505 closer to the lower... One end of the fixing plate 2501 is fully inserted into the airbag 2506, releasing the restriction on the mud collection box 10. At this time, the mud collection box 10 can rotate vertically and swing as the device descends, shaking off the debris wrapped around the mud collection box 10. If the camera 19 is still blocked at this time, the solenoid valve is closed by controlling it, and the mud discharge pipe 12 is connected to the inside of the mud collection box 10. At this time, the inner cylinder 1102 slides downward in the outer cylinder 1101 under the action of magnetic attraction, so that the staggered air outlets on the inner cylinder 1102 and the outer cylinder 1101 overlap. The solenoid valve on the air outlet is opened by controlling it to release the gas sent into the mud collection box 10 from the mud discharge pipe 12 through the air outlet to flush away the debris blocking the camera 19, thereby solving the problem that the camera 19 is blocked during the descent and the operator cannot judge the underwater situation.

[0048] It should be noted that after the vertical restriction on the mud collection box 10 is lifted, the mud collection box 10 can swing vertically during the device's descent, thereby reducing the resistance during descent. If a hard object is encountered during the descent, the mud collection box 10 can swing in the direction of the impact, thus preventing the mud collection box 10 from being damaged by the impact of the hard object during use. At the same time, during the second stage of movement, the end of the lateral limit rod 2505 near the outer cylinder 1101 will extend out of the outer cylinder 1101 and contact the mud auger 21, protecting the mud auger 21 and preventing the mud collection box 10 from colliding with the inner wall of the outer cylinder 1101 when it rotates.

[0049] Next, after the device descends to the required depth, the sludge pump 15 is controlled to rotate forward, drawing the gas out of the lower fixed plate 2501. The gas in the limiting groove 2503 is also drawn out through the differential pressure regulating valve. At this time, under the combined action of negative pressure and spring 2504, the transverse limiting rod 2505 will move towards the lower fixed plate 2501 and squeeze the spring 2504. Then, by adjusting the direction of the electromagnet's magnetic force, the magnetic attraction force is changed to the magnetic repulsion force, causing the inner cylinder 1102 to return to its initial position. When the inner cylinder 1102 and the outer cylinder 1101 overlap, the sludge discharge pipe 12 is controlled to fill the lower fixed plate 2501 with gas, so that the transverse limiting rod 2505 is connected to the inner cylinder 1102 again, restricting the sludge collection box 10 again, making it easier for the sludge discharge pipe 12 to transport the sewage sludge in the sludge collection box 10 upward.

[0050] Finally, when the device is being cleaned, the bottom of the mud collection cylinder 11 is sealed through the above control process. Then, clean water is injected into the mud collection box 10 and the mud collection cylinder 11 through the water inlet pipe 17, and the mud collection auger 21 is activated to stir the clean water in the mud collection box 10 and the mud collection cylinder 11. During this process, the restriction on the mud collection box 10 can be released by filling the downward fixing plate 2501 with gas, so that the mud collection box 10 can shake, thereby improving the cleaning effect of the mud collection box 10. At the same time, gas is injected into the mud collection box 10 through the mud outlet pipe 12 to squeeze the water in the mud collection box 10 and discharge it through the air outlet on the mud collection cylinder 11 to effectively clean the camera 19 outside the mud collection box 10.

[0051] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A controllable submersible sewage sludge collection device, characterized in that, It includes a supporting body. The top surface of the supporting body is divided into a sealed control chamber and an open mud pumping chamber by a partition. A screw is provided on the sealed control chamber. An installation cylinder is coaxially fixedly connected to the bottom end of the screw. A mud collection box is sleeved on the outside of the bottom end of the installation cylinder. A mud sampling cylinder is coaxially fixedly connected to the bottom end of the installation cylinder. The mud collection box includes an upper sealing assembly and a lower sealing assembly. The upper and lower sealing assemblies are sealed and connected by multiple sealing plates to form a sealed space. The upper sealing assembly includes a flexible bladder, which is connected to an installation cylinder. The installation cylinder extends through the flexible bladder into the mud collection box. Upper fixing plates are provided on both sides of the flexible bladder and are connected to the sealing plates through the upper fixing plates. Longitudinal limiting rods are provided at the two ends of the flexible bladder that are not connected to the upper fixing plates. One end of the longitudinal limiting rod passes through the flexible bladder and is rotatably connected to the installation cylinder, and the other end is rotatably connected to the sealing plate. The lower sealing assembly includes a lower fixing plate. A limiting plate is provided at the end of the lower fixing plate near the mud collection cylinder. The lower fixing plate has a hollow structure and a solenoid valve is provided on the lower fixing plate. A limiting groove is opened in the limiting plate. One end of the limiting groove is connected to the inner cavity of the lower fixing plate through a differential pressure regulating valve. A spring is provided at the end of the limiting groove near the lower fixing plate. The end of the spring away from the lower fixing plate is connected to one end of a transverse limiting rod. The other end of the transverse limiting rod passes through the air bladder and is connected to the mud collection cylinder. The mud collection cylinder includes an outer cylinder and an inner cylinder, with the outer cylinder fitted over the outer cylinder. Air vents are alternately arranged on the inner and outer cylinders, and a solenoid valve is installed in the air vent of the inner cylinder. The upper end of the mud collection box is sealed to the outside of the mounting cylinder, and the lower end of the mud collection box is sealed to the mud collection cylinder. A mud discharge pipe, extending into the bottom of the mud collection box, is inserted into one side of the top of the mud collection box and is connected to a mud extraction pipe. A water inlet pipe is installed on the other side of the top of the mud collection box, and a mud discharge pipe is installed at the bottom of the side of the mud collection box. Both the water inlet pipe and the mud discharge pipe are connected to the inside of the mud collection box, and pipe plugs are installed at the pipe openings. A mud collection device connects the mounting cylinder and the mud collection cylinder. The assembly includes a mud pump installed in the open mud pumping chamber, with a mud pumping pipe on the pump. The mud pumping assembly includes a second motor installed in the installation cylinder and a mud pumping auger installed in the mud pumping cylinder. The output shaft of the second motor is coaxially and fixedly connected to the mud pumping auger. The top two sides of the mud pumping cylinder have symmetrical mud outlets located in the mud collection box. The bottom end of the mud pumping auger is coaxially and fixedly connected to a drill bit, which is equipped with an electromagnet. During the submersion, the gas in the lower fixed plate is extracted, which drives the lateral limit rod to move and release the restriction on the inner cylinder. The electromagnet then pulls the inner cylinder downward and seals the inner cylinder with the drill bit.

2. The controllable submersible sewage sludge collection device according to claim 1, characterized in that, The main body of the load-bearing body has a rotating outer tube installed in the sealed control cavity. The sealed control cavity also has a drive engagement assembly that drives the rotating outer tube to rotate. A screw rod is threaded through the rotating outer tube. A limit measuring rod is vertically fixed on the top surface of the load-bearing body. A slider that slides on the limit measuring rod is connected to the top of the screw rod.

3. The controllable submersible sewage sludge collection device according to claim 2, characterized in that, The drive engagement assembly includes a first motor fixedly installed in a sealed control cavity and two bevel gears. The two bevel gears are respectively fitted onto the output shaft of the first motor and the outside of the rotating outer tube, and the two bevel gears mesh with each other.

4. The controllable submersible sewage and sludge collection device according to claim 3, characterized in that, The screw is hollow inside, and the slider at the top of the screw has a through hole that communicates with the inside of the screw.

5. A controllable submersible sewage sludge collection device according to claim 4, characterized in that, Lights are installed at the four corners of the bottom surface of the mud collection box, and cameras are installed inside the four lights on both sides of the mud collection cylinder. A display screen that is electrically connected to the cameras is hinged to the top of the supporting body.

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