Descending device for silt depth detection

Abstract

The invention relates to the technical field of sludge depth detection, in particular to a descending device for sludge depth detection, which comprises two groups of supporting frames fixedly arranged on a bottom frame, the two groups of supporting frames are respectively positioned on two sides of the bottom frame, top rods are fixed on the inner sides of the tops of the two groups of supporting frames, and extension blocks are arranged on the side surfaces of the top rods; an inner cavity is formed in the surface of the top frame, a threaded rod and a moving block are arranged in the inner cavity, the two ends of the threaded rod are rotationally connected to the top frame, the moving block is located on the threaded rod, and the first fixed pulley is arranged below the first fixed pulley, the third fixed pulley is arranged below the extension block, and the top frame, the bottom plate, the carrying plate and the supporting seat are arranged between the two supporting frames; a threaded hole is formed in the surface of the moving block, the threaded hole is in threaded fit with the threaded rod, a connecting plate is fixedly connected to the moving block, and a wire ring is fixedly connected to the other end of the connecting plate; the device has the beneficial effects that the perpendicularity of the sludge probe is ensured, and the accuracy of sludge depth detection is improved.

Description

Technical Field

[0001] The invention relates to the field of sludge depth detection, in particular to a descending device for sludge depth detection. Background Art

[0002] With the acceleration of urbanization, the booming economy and the continuous expansion of the population, the pollution and siltation problems faced by urban rivers are becoming increasingly serious. On the one hand, rivers have long been subjected to the discharge of urban sewage and the large amount of silt brought by heavy rainfall in the rainy season, resulting in the gradual siltation of the river channel, which has seriously damaged the water ecological environment. On the other hand, the unreasonable water intake behavior in the upstream river channel has caused a sharp drop in the water volume downstream, and the water exchange capacity and self-purification capacity have decreased accordingly. Pollutants have accumulated in large quantities and precipitated into silt. This siltation phenomenon in the river channel not only weakens its flood-carrying capacity, but also increases the risk of flood disasters, especially when encountering heavy rains during the flood season, which may cause serious floods.

[0003] Therefore, river dredging plays a vital role in ensuring flood safety and maintaining the water ecological environment. However, the current method is to manually place the silt probe into the water to detect the depth of silt on the bottom of the water. Since the vertical state of the silt probe cannot be guaranteed, the probe is prone to tilt or even fall over, which will not only cause deviations in the detection data, but may also produce completely wrong values.

[0004] To this end, the present invention proposes a descending device for sludge depth detection to solve the above-mentioned problem. Summary of the invention

[0005] The object of the present invention is to provide a descending device for detecting silt depth to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a descending device for detecting sludge depth, the descending device for detecting sludge depth comprising: a bottom frame, a support frame is fixedly arranged on the bottom frame, two groups of support frames are arranged, the two groups of support frames are respectively located on both sides of the bottom frame, a top rod is fixed to the inner side of the top of the two groups of support frames, an extension block is arranged on the side of the top rod, a first fixed pulley is arranged below the top rod, a third fixed pulley is arranged below the extension block, and a top frame, a bottom plate, a carrier plate and a support seat are arranged between the two groups of support frames;

[0007] The top frame surface is provided with an inner cavity, a threaded rod and a moving block are arranged in the inner cavity, two ends of the threaded rod are rotatably connected to the top frame, the moving block is located on the threaded rod, a threaded hole is provided on the surface of the moving block, the threaded hole and the threaded rod are thread-matched, a connecting plate is fixedly connected to the moving block, and the other end of the connecting plate is fixedly connected to a wire ring;

[0008] A rotating shaft is arranged above the support seat, a wire taking-up area is arranged on the rotating shaft, a wire is wound in the wire taking-up area, and a third fixed pulley is arranged above the bottom plate.

[0009] Preferably, one end of the wire is connected to the first motor, and the other end of the wire is fixedly connected to the sludge probe. A hole is opened through the surface of the wire ring, and the wire passes through the wire ring. The outer wall of the wire and the inner wall of the hole on the surface of the wire ring are slidably connected. The wire passes through the pulley groove of the first fixed pulley, the pulley groove of the second top pulley, and the pulley groove of the third fixed pulley in sequence, and the third fixed pulley is located on the outside of the support frame.

[0010] Preferably, the bottom plate is located below the top rod, and two groups of connecting plates are fixed above the bottom plate. The two groups of connecting plates are respectively located on both sides of the bottom plate surface, and a third fixed pulley is arranged between the two groups of connecting plates.

[0011] Preferably, a base is provided at one end below the bottom frame, and a transmission shaft is provided at the other end below the bottom frame. Two groups of bases are provided, and the two groups of bases are respectively fixed at both sides of one end of the bottom frame. The base is composed of a support rod and a chassis, and the chassis is disc-shaped. The transmission shaft is connected to the bottom frame through bearings, and both ends of the transmission shaft extend toward both sides of the bottom frame. Both ends of the transmission shaft are movably connected with movable wheels.

[0012] Preferably, a push handle is fixed to the surface of the support frame, the push handle is located on one side of the base, the cross-section of the push handle is in the shape of "7", a rubber ring is fixed to the surface of the end of the push handle, an inner support frame is fixed to the inner side of the two groups of support frames, and diagonal support frames are connected to the bottom of both sides of the inner support frame, one end of the diagonal support frame is fixedly connected to the inner support frame, and the other end of the diagonal support frame is fixedly connected to the inner wall of the support frame by bolts.

[0013] Preferably, the support seat is located above the diagonal support frame, and both ends of the support seat are fixedly connected to the diagonal support frame by bolts, side panels are fixed on both sides of the upper surface of the support seat, the rotating shaft is located on the inner sides of the two groups of side panels, and both ends of the rotating shaft are rotatably connected to the two groups of side panels, and one end of the rotating shaft extends out of the side plate and a driven sprocket is fixed at its end surface.

[0014] Preferably, the carrier plate is located above the bottom frame, and both ends of the carrier plate are fixedly connected to the bottom frame by bolts. A first motor is arranged on the carrier plate, and a base is provided at the bottom of the first motor, which is fixedly connected to the carrier plate by bolts. A driving sprocket is fixed to the output end of the first motor, and the driving sprocket is located directly below the driven sprocket, and the driving sprocket and the driven sprocket are connected by a chain.

[0015] Preferably, a back plate is fixed at both ends of the back side of the top frame, the top frame is located inside the two groups of support frames, the top frame is located above the rotating shaft, the surface of the back plate is in contact with and tightly pressed against the inner wall of the support frame, and the back plate is fixedly connected to the support frame by bolts.

[0016] Preferably, one end of the threaded rod extends out of the top frame, a second motor is provided on the side of the top frame, and an output end of the second motor is fixedly connected to the threaded rod.

[0017] Preferably, sliders are provided on both sides of the moving block, and the sliders are in the shape of square plates. Slide grooves are provided on the inner walls on both sides of the inner cavity, and the sliders are located in the slide grooves. The outer wall of the slider and the inner wall of the slide groove are slidably connected. A touch switch is provided at the bottom of the sludge probe, and the touch switch is electrically connected to the first motor. The sludge probe is vertically arranged.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention proposes a descending device for detecting silt depth, which utilizes the wire-reeling area on the rotating shaft to wind the conducting wire, which is connected to the silt probe. A touch switch is installed at the bottom of the silt probe. When the bottom of the probe touches the mud on the bottom of the water, its own weight will press down the touch switch. This action will immediately stop the operation of the first motor, thereby automatically adjusting the length of the conducting wire to prevent the silt probe from tilting or even falling due to the excessive length of the conducting wire. In addition, a top frame is installed above the rotating shaft, on which a threaded rod, a second motor, a conducting wire ring, a support plate and a moving block, as well as a first, second and third fixed pulleys are provided. This combined design is intended to organize and wind the conducting wire, while enhancing the vertical stability of the silt probe, avoiding the bending of the conducting wire to hinder the water flow, ensuring that the silt probe remains in a vertical state, and thereby improving the accuracy of silt depth measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a side view of the overall structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the rotating shaft structure of the present invention;

[0023] Figure 4 It is a schematic diagram of the support structure of the present invention;

[0024] Figure 5 It is a schematic diagram of the top frame structure of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the mobile block of the present invention;

[0026] Figure 7 It is a schematic diagram of the wire loop structure of the present invention;

[0027] Figure 8 It is a cross-sectional view of the top frame structure of the present invention;

[0028] Fig. 9 It is a schematic diagram of the structure of the sludge probe of the present invention.

[0029] In the figure: 1, top rod; 2, first fixed pulley; 3, conductor; 4, top frame; 5, take-up area; 6, support seat; 7, push handle; 9, base; 10, bottom frame; 11, moving wheel; 12, rotating shaft; 13, support frame; 14, second fixed pulley; 15, extension block; 16, third fixed pulley; 17, silt probe; 18, bottom plate; 19, connecting plate; 21, transmission shaft; 23, driving sprocket; 24, chain; 25, Driven sprocket; 26, second motor; 27, side plate; 28, guide hole; 29, first motor; 30, seat plate; 31, guide groove; 32, carrier plate; 33, vertical plate; 34, inner support frame; 35, guide column; 36, diagonal support frame; 37, back plate; 38, wire ring; 39, connecting plate; 40, inner cavity; 41, moving block; 42, threaded rod; 43, slider; 44, internal thread; 45, slide groove; 46, touch switch. DETAILED DESCRIPTION

[0030] Example 1: Please refer to Figures 1 to 9 The present invention provides a technical solution: a descending device for detecting silt depth, comprising: a bottom frame 10, a support frame 13 is fixedly arranged on the bottom frame 10, two groups of the support frames 13 are arranged, and the two groups of support frames 13 are respectively located on both sides of the bottom frame 10, a top rod 1 is fixed to the inner side of the top of the two groups of support frames 13, an extension block 15 is arranged on the side of the top rod 1, a first fixed pulley 2 is arranged below the top rod 1, and a third fixed pulley 16 is arranged below the extension block 15, and a top frame 4, a bottom plate 18, a carrier plate 32 and a support seat 6 are arranged between the two groups of support frames 13;

[0031] An inner cavity 40 is provided on the surface of the top frame 4, a threaded rod 42 and a moving block 41 are provided in the inner cavity 40, both ends of the threaded rod 42 are rotatably connected to the top frame 4, the moving block 41 is located on the threaded rod 42, a threaded hole is provided on the surface of the moving block 41, the threaded hole and the threaded rod 42 are threadedly adapted, a connecting plate 39 is fixedly connected to the moving block 41, and a wire 3 ring is fixedly connected to the other end of the connecting plate 39, a rotating shaft 12 is provided above the support seat 6, a wire collection area 5 is provided on the rotating shaft 12, and a wire 3 is wound in the wire collection area 5, a third fixed pulley 16 is provided above the bottom plate 18, a touch switch 46 is provided at the bottom of the sludge probe 17, the touch switch 46 is electrically connected to the first motor 29, and the sludge probe 17 is vertically arranged;

[0032] When in use, the bottom frame 10 and the support frame 13 provide a stable supporting structure for the entire device to ensure that the device will not tip over or shake during use. The top rod 1 and the extension block 15 are used to fix and support the first fixed pulley 2 and the second top pulley. At the same time, the extension block 15 provides an installation position for the third fixed pulley 16. One end of the wire 3 is connected to the sludge probe 17 and the other end is connected to the first motor 29, which is used to transmit the signal of the touch switch 46 at the bottom of the sludge probe 17 back to the first motor 29. At the same time, the wire 3 is also an important component for realizing the descent and ascent of the sludge probe 17. The center of gravity of the sludge probe 17 is at its bottom, so that the sludge probe 17 is always vertical. At the same time, under the connection of the wire 3, the sludge probe 17 will be released vertically to the bottom of the sludge.

[0033] Embodiment 2: On the basis of embodiment 1, one end of the wire 3 is connected to the first motor 29, and the other end of the wire 3 is fixedly connected to the silt probe 17. A hole is opened through the surface of the wire 3 ring, and the wire 3 passes through the wire 3 ring. The outer wall of the wire 3 and the inner wall of the hole on the surface of the wire 3 ring are slidably connected. The wire 3 passes through the pulley groove of the first fixed pulley 2, the pulley groove of the second top pulley, and the pulley groove of the third fixed pulley 16 in sequence. The third fixed pulley 16 is located on the outside of the support frame 13, and the bottom plate 18 is located below the top rod 1. Two groups of connecting plates 39 are fixed above the bottom plate 18. The two groups of connecting plates 39 are respectively located on both sides of the surface of the bottom plate 18, and the third fixed pulley 16 is arranged between the two groups of connecting plates 39.

[0034] When in use, the first, second and third fixed pulleys 16 are arranged to change the direction of the wire 3 through the passing and sliding of the wire 3, while reducing the friction between the wire 3 and other parts of the device, thereby protecting the wire 3;

[0035] A base 9 is provided at one end below the bottom frame 10, and a transmission shaft 21 is provided at the other end below the bottom frame 10. Two groups of bases 9 are provided, and the two groups of bases 9 are respectively fixed at both sides of one end of the bottom frame 10. The base 9 is composed of a support rod and a chassis, and the chassis is disc-shaped. The transmission shaft 21 is connected to the bottom frame 10 through a bearing, and both ends of the transmission shaft 21 extend toward both sides of the bottom frame 10. Both ends of the transmission shaft 21 are movably connected with moving wheels 11. A push handle 7 is fixed on the surface of the support frame 13. The push handle 7 is located on one side of the base 9. The cross section of the push handle 7 is "7"-shaped, and a rubber ring is fixed on the surface of the end of the push handle 7.

[0036] When in use, the operator holds the push handle 7 and applies force to lift it, so that the base 9 is separated from the supporting surface, while the moving wheel 11 is always in contact with the supporting surface, which is convenient for moving the device. At the same time, the chassis at the bottom of the base 9 is disc-shaped, which can increase the contact force area with the supporting surface and improve the overall stability of the device.

[0037] Embodiment 3: On the basis of embodiment 2, inner support frames 34 are fixed to the inner sides of the two groups of support frames 13, and diagonal support frames 36 are connected to the bottoms of both sides of the inner support frames 34, one end of the diagonal support frame 36 is fixedly connected to the inner support frame 34, and the other end of the diagonal support frame 36 is fixedly connected to the inner wall of the support frame 13 by bolts, the support seat 6 is located above the diagonal support frame, and both ends of the support seat 6 are fixedly connected to the diagonal support frame 36 by bolts, and side plates 27 are fixed to both sides of the upper surface of the support seat 6, the rotating shaft 12 is located inside the two groups of side plates 27, and both ends of the rotating shaft 12 are rotatably connected to the two groups of side plates 27, and one end of the rotating shaft 12 extends out of the side plate 27 and a driven sprocket 25 is fixed to its end surface;

[0038] The carrier plate 32 is located above the bottom frame 10, and both ends of the carrier plate 32 are fixedly connected to the bottom frame 10 by bolts. A first motor 29 is arranged on the carrier plate 32, and a base 9 is arranged at the bottom of the first motor 29, and the base 9 is fixedly connected to the carrier plate 32 by bolts. A driving sprocket 23 is fixed to the output end of the first motor 29, and the driving sprocket 23 is located directly below the driven sprocket 25, and the driving sprocket 23 and the driven sprocket 25 are connected by a chain 24;

[0039] When in use, by starting the first motor 29, the driving sprocket 23 will be driven to rotate, and under the transmission action of the chain 24, the driven sprocket 25 and the rotating shaft 12 will be driven to rotate, so as to realize the storage and release operation of the wire 3;

[0040] A back plate 37 is fixed at both ends of the back side of the top frame 4. The top frame 4 is located inside the two groups of brackets 13. The top frame 4 is located above the rotating shaft 12. The surface of the back plate 37 contacts and presses against the inner wall of the bracket 13. The back plate 37 is fixedly connected to the bracket 13 by bolts. One end of the threaded rod 42 extends out of the top frame 4. A second motor 26 is arranged on the side of the top frame 4. The output end of the second motor 26 is fixedly connected to the threaded rod 42. Slide blocks 43 are arranged on both sides of the moving block 41. The slide blocks 43 are in the shape of square plates. Slide grooves 45 are opened on the inner walls of both sides of the inner cavity 40. The slide blocks 43 are located in the slide grooves 45. The outer wall of the slide block 43 and the inner wall of the slide groove 45 are slidably connected.

[0041] When in use, the start-up of the second motor 26 will drive the threaded rod 42 to rotate, so that the moving block 41 can move in the inner cavity 40, and then drive the wire ring 3 to move, thereby adjusting the position of the wire 3 to be wound to the wire collection area 5 when storing the wire 3, ensuring the stability of the wire 3 storage, and at the same time, when releasing the wire 3, it can provide guidance and support for the direction of the wire 3, ensuring the stable connection between the wire 3 and the first fixed pulley 2, thereby improving the stability and manageability of the wire 3.

[0042] Embodiment 4: On the basis of embodiment 3, guide columns 35 are fixed at both ends of the surface of the inner support frame 34, the top end surface of the guide rod is chamfered, and two groups of guide columns 35 are provided. Two groups of guide holes 28 are provided at both ends of the surface of the support seat 6. The two groups of guide holes 28 are symmetrically distributed about the central axis of the surface of the support seat 6, and the two groups of guide holes 28 are located in the middle of the mounting holes on the surface of the support seat 6. The outer wall of the guide column 35 and the inner wall of the guide hole 28 are slidably connected. Vertical plates 33 are fixed on both sides of the surface of the carrier plate 32. Both sides of the upper end of the vertical plates 33 are chamfered, and guide grooves 31 are provided on both sides of the surface of the seat plate 30. The guide grooves 31 are located in the middle of the mounting holes on the surface of the seat plate 30, and the outer wall of the guide plate and the inner wall of the guide groove 31 are slidably connected.

[0043] During use, when the support seat 6 and the inner support frame 34 are connected, the guide column 35 is first inserted into the guide groove 31 to limit the support seat 6, which is convenient for the subsequent installation of bolts and ensures the stability of the rotating shaft 12 and the driven sprocket 25. At the same time, when the seat plate 30 and the carrier plate 32 are connected, the vertical plate 33 is first inserted into the guide groove 31 to limit the seat plate 30, which is convenient for the subsequent installation of bolts and ensures the stability of the driving sprocket 23, thereby ensuring the stable transmission of the chain 24 and the stable operation of the wire 3. The transmission is carried out through the sprocket and the chain 24, which ensures that the rotation can be transmitted continuously and stably.

[0044] Working principle: In actual use, the wire 3 is wound using the take-up area 5 on the rotating shaft 12. The wire 3 is connected to the silt probe 17. A touch switch 46 is installed at the bottom of the silt probe 17. When the bottom of the probe touches the bottom mud, its own weight will press down the touch switch 46. This action will immediately stop the operation of the first motor 29, thereby automatically adjusting the length of the wire 3 to prevent the silt probe 17 from tilting or even falling due to the excessive length of the wire 3. In addition, a top frame 4 is installed above the rotating shaft 12, and a threaded rod 42, a second motor 26, a wire 3 ring, a stop plate and a shift plate are arranged on the top frame 4. The movable block 41, and the first, second and third fixed pulleys 16 are designed as a combination to organize and wind the conductor 3, while enhancing the vertical stability of the silt probe 17, avoiding the bending of the conductor 3 to hinder the water flow, ensuring that the silt probe 17 remains in a vertical state, and thus improving the accuracy of the silt depth measurement. This avoids the current practice of manually placing the silt probe 17 into the water to detect the silt depth in the water bottom. Since the vertical state of the silt probe 17 cannot be guaranteed, the probe is prone to tilt or even fall over, which not only causes deviations in the detection data, but may also produce completely wrong numerical values.

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

Claims

1. A descending device for detecting sludge depth, characterized in that: The descending device for detecting the silt depth comprises: a bottom frame (10), a support frame (13) is fixedly arranged on the bottom frame (10), two groups of the support frames (13) are arranged, and the two groups of support frames (13) are respectively located on both sides of the bottom frame (10), a top rod (1) is fixed to the inner side of the top of the two groups of support frames (13), an extension block (15) is arranged on the side of the top rod (1), a first fixed pulley (2) is arranged below the top rod (1), and a third fixed pulley (16) is arranged below the extension block (15), and a top frame (4), a bottom plate (18), a carrier plate (32) and a support seat (6) are arranged between the two groups of support frames (13); The top frame (4) is provided with an inner cavity (40), a threaded rod (42) and a moving block (41) are arranged in the inner cavity (40), the two ends of the threaded rod (42) are rotatably connected to the top frame (4), the moving block (41) is located on the threaded rod (42), a threaded hole is provided on the surface of the moving block (41), the threaded hole and the threaded rod (42) are thread-matched, a connecting plate (39) is fixedly connected to the moving block (41), and the other end of the connecting plate (39) is fixedly connected to a wire (3) ring; A rotating shaft (12) is arranged above the support seat (6), a wire taking-up area (5) is arranged on the rotating shaft (12), a wire (3) is wound in the wire taking-up area (5), and a third fixed pulley (16) is arranged above the bottom plate (18).

2. A descending device for detecting sludge depth according to claim 1, characterized in that: One end of the wire (3) is connected to the first motor (29), and the other end of the wire (3) is fixedly connected to the silt probe (17). A hole is formed through the surface of the wire (3) ring, and the wire (3) passes through the wire (3) ring. The outer wall of the wire (3) and the inner wall of the hole on the surface of the wire (3) ring are slidably connected. The wire (3) passes through the pulley groove of the first fixed pulley (2), the pulley groove of the second top pulley, and the pulley groove of the third fixed pulley (16) in sequence. The third fixed pulley (16) is located on the outside of the support frame (13).

3. A descending device for detecting sludge depth according to claim 1, characterized in that: The bottom plate (18) is located below the top rod (1), and two groups of connecting plates (39) are fixed above the bottom plate (18). The two groups of connecting plates (39) are respectively located on both sides of the surface of the bottom plate (18), and a third fixed pulley (16) is arranged between the two groups of connecting plates (39).

4. A descending device for detecting sludge depth according to claim 1, characterized in that: A base (9) is provided at one end below the bottom frame (10), and a transmission shaft (21) is provided at the other end below the bottom frame (10). The base (9) is provided with two groups, and the two groups of bases (9) are respectively fixed at two sides of one end of the bottom frame (10). The base (9) is composed of a support rod and a chassis, and the chassis is in a disc shape. The transmission shaft (21) is connected to the bottom frame (10) through a bearing, and two ends of the transmission shaft (21) extend toward two sides of the bottom frame (10). Both ends of the transmission shaft (21) are movably connected to the moving wheels (11).

5. A descending device for detecting sludge depth according to claim 1, characterized in that: A push handle (7) is fixed on the surface of the support frame (13), the push handle (7) is located on one side of the base (9), the cross section of the push handle (7) is in the shape of a letter "7", a rubber ring is fixed on the surface at the end of the push handle (7), an inner support frame (34) is fixed on the inner side of the two groups of support frames (13), and the bottoms of both sides of the inner support frame (34) are connected to oblique support frames (36), one end of the oblique support frame (36) is fixedly connected to the inner support frame (34), and the other end of the oblique support frame (36) is fixedly connected to the inner wall of the support frame (13) by bolts.

6. A descending device for detecting sludge depth according to claim 1, characterized in that: The support seat (6) is located above the diagonal support frame, and the two ends of the support seat (6) are fixedly connected to the diagonal support frame (36) by bolts. Side plates (27) are fixed on both sides of the upper surface of the support seat (6). The rotating shaft (12) is located inside the two groups of side plates (27), and the two ends of the rotating shaft (12) are rotatably connected to the two groups of side plates (27). One end of the rotating shaft (12) extends out of the side plate (27) and a driven sprocket (25) is fixed on its end surface.

7. A descending device for detecting sludge depth according to claim 1, characterized in that: The carrier plate (32) is located above the bottom frame (10), and both ends of the carrier plate (32) are fixedly connected to the bottom frame (10) by bolts. A first motor (29) is arranged on the carrier plate (32), and a base (9) is arranged at the bottom of the first motor (29), and the base (9) is fixedly connected to the carrier plate (32) by bolts. A driving sprocket (23) is fixed at the output end of the first motor (29), and the driving sprocket (23) is located directly below the driven sprocket (25), and the driving sprocket (23) and the driven sprocket (25) are connected by a chain (24).

8. A descending device for detecting sludge depth according to claim 1, characterized in that: Back plates (37) are fixed at both ends of the back side of the top frame (4). The top frame (4) is located inside the two groups of support frames (13). The top frame (4) is located above the rotating shaft (12). The surface of the back plate (37) contacts and presses against the inner wall of the support frame (13). The back plate (37) is fixedly connected to the support frame (13) by bolts.

9. A descending device for detecting sludge depth according to claim 1, characterized in that: One end of the threaded rod (42) extends out of the top frame (4), a second motor (26) is arranged on the side of the top frame (4), and an output end of the second motor (26) is fixedly connected to the threaded rod (42).

10. A descending device for detecting sludge depth according to claim 1, characterized in that: Slide blocks (43) are arranged on both sides of the moving block (41), and the slide blocks (43) are in the shape of square plates. Slide grooves (45) are provided on the inner walls on both sides of the inner cavity (40), and the slide blocks (43) are located in the slide grooves (45). The outer wall of the slide block (43) and the inner wall of the slide groove (45) are slidably connected. A touch switch (46) is arranged at the bottom of the sludge probe (17), and the touch switch (46) is electrically connected to the first motor (29). The sludge probe (17) is arranged vertically.

Images