Urban drainage closed conduit sludge cleaning device and using method thereof

Abstract

The invention relates to the technical field of desilting devices, and discloses an urban drainage closed conduit silt cleaning device which comprises a shell, and a collecting opening is formed in the front side of the shell; the cutting blocks are connected to the bottom of the collecting opening in a sliding mode, each cutting block is of a wedge-shaped structure, and the tip ends of the cutting blocks face the collecting opening; the driving mechanism is installed on the shell and used for driving the cutting blocks to move in the front-back direction, and every two adjacent cutting blocks slide in the opposite direction; and the pumping mechanism is installed in the shell, the input end of the pumping mechanism communicates with the collecting opening, and the pumping mechanism is used for collecting sludge from the input end of the pumping mechanism and discharging the sludge from the output end of the pumping mechanism. In addition, the invention further discloses a using method based on the urban drainage closed conduit sludge cleaning device. The sludge loosening effect can be achieved, sludge is conveyed to the ground through the pumping mechanism, and physical output of operators is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of silt clearing devices, and in particular to a silt clearing device for an urban drainage culvert and a use method thereof. Background Art

[0002] The urban drainage system is one of the important infrastructures to maintain the normal operation of the city. However, as time goes by, a large amount of silt will gradually accumulate in the culverts in the drainage system. Due to the long-term siltation of the culverts and poor drainage, low-lying spots are formed at the bottom of some sections of the weir canal. The silt, small stones, etc. brought by waterlogging are silted up at low-lying spots, which indirectly leads to insufficient water-passing sections of the weir canal and reduced drainage capacity. At the same time, it also brings problems such as mixed rainwater and sewage, and direct sewage discharge, making water bodies, especially culverts, become urban sewage channels. The culvert is a fully enclosed structure, which leads to the inherent lack of dissolved oxygen and light in the canal. Aquatic plants and aerobic microorganisms cannot survive, and a large number of pollutants excessively consume the dissolved oxygen in the water body, forming an anaerobic environment. As anaerobic microorganisms multiply in large numbers on the silt at the bottom of the canal, they decompose and metabolize to produce black flocs and release toxic and harmful gases, followed by a series of water environment pollution problems, affecting the lives of surrounding residents.

[0003] Traditional dredging in underground canals adopts manual dredging and bagging, and then transported by manual handling or rickshaws and piled up at the opening. Manual shovels and other tools are usually used to remove the silt, and this process requires a lot of manpower and physical strength. In order to save manpower consumption, the patent document with announcement number CN211007014U discloses a robot dredging device for underground canals, including a frame with a main support wheel installed at the lower end and a secondary support wheel installed at the lower end. The lower end of the frame is provided with a driving mechanism for driving the main support wheel to move along the underground canal, the upper end of the frame is provided with a lifting mechanism for lifting the secondary support wheel, and the frame is provided with a cleaning mechanism for cleaning the inner wall of the underground canal. The cleaning mechanism includes a first motor fixedly connected to the frame, the output end of the first motor is fixedly connected to a connecting seat, and the outer peripheral surface of the connecting seat is provided with a plurality of main telescopic parts and secondary telescopic parts that are mutually staggered, and the end of the main telescopic part is fixedly connected to a scraper, and the end of the secondary telescopic part is fixedly connected to a brush. The bottom of the frame is provided with a pumping mechanism for collecting the cleared clogging objects. By arranging the cleaning mechanism on the frame, the frame can clean the culvert during movement, and the clogging objects are collected by the pumping mechanism, which is convenient for cleaning the culvert in the culvert.

[0004] However, the above patent still has some defects. Usually, the internal space of most culverts is rectangular, and the sludge will adhere to the bottom of the culvert after accumulating at the bottom of the culvert. For culverts with rectangular interiors, it is difficult to achieve large-area cleaning by driving the scraper and brush to rotate by the first motor, and it is difficult to achieve the effect of loosening the sludge at the bottom of the culvert. At this time, driving the frame to move by pushing to collect the sludge will still cause great physical exertion, resulting in a decrease in the sense of operation during use. Summary of the invention

[0005] The present invention aims to provide a device for cleaning sludge in an urban drainage culvert and a method for using the device to overcome the above-mentioned shortcomings.

[0006] In order to achieve the above-mentioned object, the first aspect of the present invention provides a device for cleaning sludge in a city drainage culvert, comprising:

[0007] A housing, wherein a collecting port is provided on the front side of the housing;

[0008] A plurality of cutting blocks slidably connected to the bottom of the collecting port, wherein the cutting blocks are wedge-shaped structures, and the tips of the cutting blocks face the collecting port;

[0009] A driving mechanism installed on the housing, the driving mechanism is used to drive the cutting block to move in the front-rear direction, and two adjacent cutting blocks to slide in opposite directions; and

[0010] A pumping mechanism is installed in the housing, the input end of the pumping mechanism is communicated with the collecting port, and the pumping mechanism is used to collect sludge from its input end and discharge it from its output end.

[0011] Furthermore, the driving mechanism is used to drive at least one of two adjacent cutting blocks to move in the front-rear direction;

[0012] A blind hole is arranged on the side wall of one of the two adjacent cutting blocks, an elastic member is arranged in the blind hole and is slidably connected with a sliding rod, and the elastic member is used to drive one end of the sliding rod to move in a direction away from the bottom of the blind hole;

[0013] Another side wall of the two adjacent cutting blocks is provided with a blind groove, which is arranged opposite to the blind hole. The bottom of the blind groove along the front-back direction is arranged in a wave shape, and one end of the sliding rod is slidably connected to the bottom of the blind groove.

[0014] Furthermore, a smooth protrusion is arranged at the bottom of the blind groove along the front-rear direction, the protrusion protrudes toward the blind hole, and one end of the sliding rod is slidably connected to the protrusion.

[0015] Furthermore, the driving mechanism is one of the following structures:

[0016] Structure 1: A sliding cavity is provided at the rear end of one of the two adjacent cutting blocks, a driving plate is provided in the sliding cavity, a plurality of first magnets are provided on the end surface of the driving plate, a plurality of second magnets are provided on the cavity wall of the sliding cavity, the plurality of second magnets and the plurality of first magnets are arranged at intervals along the front-to-back direction, and the driving plate is driven to rotate to achieve mutual attraction or repulsion between the first magnet and the second magnet.

[0017] a driving rod rotatably connected to the housing, the driving rod extending in the front-to-back direction, the front end of the driving rod movably passing through one of the two adjacent cutting blocks and fixedly connected to the driving plate, the driving rod, the driving plate and one of the two adjacent cutting blocks are arranged in a one-to-one correspondence, a plurality of the first magnets and a plurality of the second magnets are distributed at intervals in a circumference along the axis direction of the driving rod, and

[0018] A driving assembly for driving the driving rod to rotate;

[0019] The other of the two adjacent cutting blocks is provided with a limiting structure along the front-to-back direction, and the limiting structure is used to limit the sliding displacement of the other of the two adjacent cutting blocks along the front-to-back direction;

[0020] Structure 2: A sliding cavity is provided at the rear end of another of the two adjacent cutting blocks, a driving plate is provided in the sliding cavity, a plurality of first magnets are provided on the end surface of the driving plate, a plurality of second magnets are provided on the cavity wall of the sliding cavity, the plurality of second magnets and the plurality of first magnets are arranged at intervals along the front-to-back direction, and the driving plate is driven to rotate to achieve mutual attraction or repulsion between the first magnet and the second magnet.

[0021] a driving rod rotatably connected to the housing, the driving rod extending in the front-to-back direction, the front end of the driving rod movably passing through the other of the two adjacent cutting blocks and fixedly connected to the driving plate, the driving rod, the driving plate and the other of the two adjacent cutting blocks are arranged in a one-to-one correspondence, a plurality of the first magnets and a plurality of the second magnets are distributed at intervals in a circumferential manner along the axis direction of the driving rod, and

[0022] A driving assembly for driving the driving rod to rotate;

[0023] One of the two adjacent cutting blocks is provided with a limiting structure along the front-to-back direction, and the limiting structure is used to limit the sliding displacement of the other of the two adjacent cutting blocks along the front-to-back direction.

[0024] Furthermore, the first magnets and the second magnets are of equal number, and a plurality of the first magnets and a plurality of the second magnets are distributed in a circular array along the axial direction of the driving rod, the magnetic poles of the magnetic pole faces in the same direction of adjacent first magnets are opposite, and the magnetic poles of the magnetic pole faces in the same direction of adjacent second magnets are opposite, and the driving component is used to drive the driving rod to rotate intermittently and realize the intermittent relative arrangement of the first magnet and the second magnet.

[0025] Furthermore, the driving assembly comprises:

[0026] The housing at the rear end of the cutting block is provided with a first chamber, the driving rod is rotatably connected to the side wall of the first chamber, the rear end of the driving rod passes through the front side wall of the first chamber and is splined with a first intermittent gear, a rotating shaft is rotatably connected to the front side wall of the first chamber, a second intermittent gear is splined on the rotating shaft, the second intermittent gear is selectively meshed with the first intermittent gear for transmission, and the driving rod, the first intermittent gear and the second intermittent gear are arranged one by one;

[0027] A first connecting rod is arranged in one-to-one correspondence with the rotating shaft, and one end of the first connecting rod is fixedly connected to the rotating shaft;

[0028] A transmission frame rotatably connected to the other end of the first connecting rod;

[0029] A driving motor is fixedly connected to the rear side wall of the first chamber, and the output shaft of the driving motor is drivingly connected to one end of a second connecting rod, the other end of the second connecting rod is rotatably connected to the transmission frame, and the second connecting rod is arranged parallel to multiple first connecting rods.

[0030] Furthermore, the shell located above the rear end of the first chamber is provided with a second chamber; the pumping mechanism includes a mud pump and a connecting pipe located in the second chamber, the input end of the mud pump is connected to the collecting port through the connecting pipe, and the output end of the mud pump is arranged through the upper end of the second chamber.

[0031] Furthermore, the front end of the front side wall of the first chamber extends forward to form an extension section, the bottom surface of the extension section is slidably connected to the rear end upper surface of the cutting block, the extension section and the top surface of the first chamber are integrally formed to form an inclined surface, and the inclined surface and the cutting block are both upwardly sloping toward the connecting pipe.

[0032] Furthermore, a plurality of streamlined bosses are fixedly provided on the upper surface of the cutting block, and the plurality of bosses are arranged at intervals along the front-to-back direction. The bosses include an integrally formed triangular segment and a semicircular segment, and the triangular segment is located at the front side of the semicircular segment.

[0033] Compared with the prior art, the urban drainage culvert sludge cleaning device of the present invention has the following advantages:

[0034] By driving the cutting block to move back and forth through the driving mechanism, the silt between the upper and lower layers and the silt from the bottom of the culvert can be loosened or separated, thereby achieving the effect of loosening the silt and reducing the shoveling action of the operators. The silt can be allowed to enter the shell from the collection port by moving the shell, and the silt is transported to the ground through the pumping mechanism, reducing the personnel transportation process, thereby reducing the physical consumption of the operators, and the operating lever rises during use.

[0035] The second aspect of the present invention provides a method for using the above-mentioned urban drainage culvert sludge cleaning device, comprising the following steps:

[0036] Inspection opening: remove the cover plate of the culvert that needs to be desilted to form at least two inspection openings so that workers can enter and exit freely;

[0037] Ventilation: Natural ventilation for several days. Before the operation, use a blower to supply air from one opening of two adjacent inspection ports and extract air from the other opening to achieve mechanical ventilation. Continuous ventilation is required during the dredging process;

[0038] Gas detection: Detect toxic and harmful gases in the underground channel. Only when the detected gas meets the standard can the well be operated;

[0039] Build construction cofferdams and pump out sewage in the canal: Build construction cofferdams in the culvert of the desilting section. The cofferdam elevation should be higher than the normal water level of the canal section where the construction is located. The cofferdam length should be the same as the existing canal width. A cofferdam should be set up at a certain interval. Use water pumps to pump out rainwater to the downstream canal, and pump out sewage to the nearest sewage well;

[0040] Desilting: The operator connects one end of the sewage pipe to the output end of the pumping mechanism, and the other end of the sewage pipe is connected to the ground. The driving mechanism is turned on to move the cutting block in the front-back direction, and the pumping mechanism is turned on simultaneously. The collection port is moved toward the silt by controlling the housing, so that the silt collected through the collection port is transported to the ground, thereby realizing the desilting process;

[0041] Channel flushing: Use high-pressure water guns to flush channels and pipes, and pump the flushing water to the nearest sewage pipe network;

[0042] Restoration of the inspection opening: remove the construction cofferdam, install the culvert cover, and restore the inspection opening to its original state.

[0043] The advantages of the urban drainage culvert sludge cleaning device and the method of use thereof are the same as those of the above-mentioned urban drainage culvert sludge cleaning device and the method of use thereof relative to the prior art, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0045] Figure 1 It is a schematic diagram of the overall structure of the urban drainage culvert sludge cleaning device of the present invention;

[0046] Figure 2 A top cross-sectional view of two adjacent cutting blocks in the present invention;

[0047] Figure 3 It is a cross-sectional view of the urban drainage culvert sludge cleaning device of the present invention;

[0048] Figure 4 For the present invention Figure 3 A partial enlarged view of the middle A area;

[0049] Figure 5 It is a structural schematic diagram of the driving mechanism of the present invention;

[0050] Figure 6 Another cross-sectional view of the urban drainage culvert sludge cleaning device of the present invention;

[0051] Figure 7 For the present invention Figure 6 A partial enlarged view of area B in the middle.

[0052] Figure numerals: 1. shell; 2. cutting block; 3. boss; 4. blind hole; 5. elastic member; 6. sliding rod; 7. blind groove; 8. protrusion; 9. sliding cavity; 10. driving plate; 11. first magnet; 12. second magnet; 13. driving rod; 14. limiting groove; 15. limiting rod; 16. first chamber; 17. first intermittent gear; 18. rotating shaft; 19. second intermittent gear; 20. first connecting rod; 21. transmission frame; 22. driving motor; 23. second connecting rod; 24. second chamber; 25. mud pump; 26. connecting pipe; 27. extension section; 28. inclined surface; 29. ​​wheel; 30. handle; 31. supporting leg. DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0054] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0055] Reference Figure 1 and Figure 3 In a first aspect, the present invention provides a device for cleaning silt in a city drainage culvert, which is used to remove silt from a city drainage culvert, and can effectively reduce the physical exertion of workers and improve the convenience of removing silt.

[0056] The specific structure includes a shell 1, a cutting block 2, a driving mechanism and a pumping structure. In the present invention, the opening direction of the collecting port is defined as the front; conversely, the side away from the collecting port is defined as the rear, and the side-by-side direction of the cutting blocks 2 is defined as the left-right direction. Among them, a collecting port is provided on the front side of the shell 1, and the sludge can enter the shell 1 through the collecting port. There are multiple cutting blocks 2, and the multiple cutting blocks 2 are slidably connected to the bottom of the collecting port and arranged in rows along the left and right directions of the collecting port. The cutting block 2 is a wedge-shaped structure, and the front end of the cutting block 2 is a pointed end, and the pointed end of the cutting block 2 faces the opening direction of the collecting port. The cutting block 2 can be inserted into the bottom of the sludge or the middle of the sludge, so that the sludge and the sludge are separated from the bottom of the culvert; the driving mechanism is installed on the shell 1, and the driving mechanism is used to drive the cutting block 2 to move in the front-back direction, and the two adjacent cutting blocks 2 slide in opposite directions. The pumping mechanism is installed in the housing 1, the input end of the pumping mechanism is connected to the collection port, the output end of the pumping mechanism is located outside the housing 1, and the pumping mechanism is used to collect sludge from its input end and discharge it from its output end. The output end of the pumping mechanism is detachably connected to a sewage pipe (not shown in the figure). Silt and other impurities can be transported to the ground through the sewage pipe. Finally, the sludge is transported to the designated yard for stacking after being loaded, and is transported to the sludge disposal unit for disposal after meeting the requirements through natural drying and mechanical dehydration of sludge disposal.

[0057] Preferably, the driving mechanism is used to drive at least one of two adjacent cutting blocks 2 to move in the front-rear direction; Figure 2 , a blind hole 4 is provided on the side wall of one of the two adjacent cutting blocks 2, an elastic member 5 is provided in the blind hole 4 and a sliding rod 6 is slidably connected thereto, the elastic member 5 is preferably a compression spring, and the elastic member 5 is used to drive one end of the sliding rod 6 to move in a direction away from the bottom of the blind hole 4; a blind groove 7 is provided on the other side wall of the two adjacent cutting blocks 2, the blind groove 7 is arranged opposite to the blind hole 4, the bottom of the blind groove 7 along the front-to-back direction is arranged in a wavy shape, the bottom of the blind groove 7 is a smooth structure, one end of the sliding rod 6 is arranged in a hemispherical shape, and one end of the sliding rod 6 is slidably connected to the bottom of the blind groove 7. Specifically, a smooth protrusion 8 is provided on the bottom of the blind groove 7 along the front-to-back direction, the protrusion 8 is arranged toward the blind hole 4, and one end of the sliding rod 6 is slidably connected to the protrusion 8.

[0058] The use process of the above structure is described below: when one of the two adjacent cutting blocks 2 moves forward, the other of the two adjacent cutting blocks 2 moves backward until the cutting blocks 2 are aligned. Figure 2 In the state shown, the other end of the sliding rod 6 is inserted into the front end of the blind groove 7. At this time, one of the two adjacent cutting blocks 2 slides to the front end, and the other of the two adjacent cutting blocks 2 slides to the rear end. Subsequently, the driving mechanism drives one of the two adjacent cutting blocks 2 to move back, and the example of the driving mechanism driving one of the two adjacent cutting blocks 2 to move backward is taken. One of the two adjacent cutting blocks 2 gradually moves backwards. Under the action of the sliding rod 6 and the blind groove 7, the other of the two adjacent cutting blocks 2 is subjected to the backward force of the sliding rod 6. At this time, since the rear end of the other of the two adjacent cutting blocks 2 abuts against the shell 1, it can remain stationary. One end of the sliding rod 6 is slidably connected to the bottom of the blind groove 7. During the movement, the sliding rod 6 gradually compresses the elastic member 5 and moves toward the blind hole 4. Then the sliding rod 6 slides to the protrusion 8. After passing through the protrusion 8, the sliding rod 6 gradually moves away from the blind hole 4 under the action of the elastic member 5, exerting a forward force on the other of the two adjacent cutting blocks 2, so that the other of the two adjacent cutting blocks 2 moves forward until the other end of the sliding rod 6 is embedded in the rear end of the blind groove 7. At this time, one of the two adjacent cutting blocks 2 slides to the rear end, and the other of the two adjacent cutting blocks 2 slides to the front end. Similarly, when the driving structure drives one of the two adjacent cutting blocks 2 to move forward again, the other of the two adjacent cutting blocks 2 will move backward.

[0059] Reference Figure 3-7 , the driving mechanism is one of the following structures:

[0060] Structure 1: A sliding cavity 9 is provided at the rear end of one of the two adjacent cutting blocks 2, a driving plate 10 is provided in the sliding cavity 9, a plurality of first magnets 11 are provided on the end surface of the driving plate 10, a plurality of second magnets 12 are provided on the cavity wall of the sliding cavity 9, the plurality of second magnets 12 and the plurality of first magnets 11 are arranged at intervals along the front-to-back direction, and the driving plate 10 is driven to rotate so as to realize the mutual attraction or repulsion between the first magnets 11 and the second magnets 12, and a driving rod 13 connected to the housing 1 is rotated, the driving rod 13 extends along the front-to-back direction, the front end of the driving rod 13 movably passes through one of the two adjacent cutting blocks 2 and is fixedly connected to the driving plate 10, the driving rod 13, the driving plate 10 and one of the two adjacent cutting blocks 2 are arranged in a one-to-one correspondence, the plurality of first magnets 11 and the plurality of second magnets 12 are distributed at intervals along the axial direction of the driving rod 13, and a driving component for driving the driving rod 13 to rotate; the other of the two adjacent cutting blocks 2 is provided with a limiting structure along the front-to-back direction, and the limiting structure is used to limit the sliding displacement of the other of the two adjacent cutting blocks 2 along the front-to-back direction.

[0061] Structure 2: A sliding cavity 9 is provided at the rear end of the other of the two adjacent cutting blocks 2, a driving plate 10 is provided in the sliding cavity 9, a plurality of first magnets 11 are provided on the end surface of the driving plate 10, a plurality of second magnets 12 are provided on the cavity wall of the sliding cavity 9, the plurality of second magnets 12 and the plurality of first magnets 11 are arranged at intervals along the front-to-back direction, and the driving plate 10 is driven to rotate so as to realize the mutual attraction or repulsion between the first magnet 11 and the second magnet 12, and a driving rod 13 connected to the housing 1 is rotated, the driving rod 13 extends along the front-to-back direction, the front end of the driving rod 13 movably passes through the other of the two adjacent cutting blocks 2 and is fixedly connected to the driving plate 10, the driving rod 13, the driving plate 10 and the other of the two adjacent cutting blocks 2 are arranged one by one, the plurality of first magnets 11 and the plurality of second magnets 12 are distributed at intervals along the axial direction of the driving rod 13, and a driving component for driving the driving rod 13 to rotate.

[0062] One of the two adjacent cutting blocks 2 is provided with a limiting structure along the front-to-back direction, and the limiting structure is used to limit the sliding displacement of the other of the two adjacent cutting blocks 2 along the front-to-back direction.

[0063] Preferably, the number of first magnets 11 and second magnets 12 is equal, and multiple first magnets 11 and multiple second magnets 12 are distributed in a circular array along the axial direction of the driving rod 13. The magnetic poles of the magnetic pole faces in the same direction of adjacent first magnets 11 are opposite, and the magnetic poles of the magnetic pole faces in the same direction of adjacent second magnets 12 are opposite. The driving component is used to drive the driving rod 13 to rotate intermittently and realize the intermittent relative arrangement of the first magnet 11 and the second magnet 12.

[0064] Specifically, the sliding cavity 9 is arranged in one of the two adjacent cutting blocks 2, and the front end surface of the driving plate 10 is provided with six first magnets 11, which are arranged in a circular array along the axial direction of the driving rod 13, and the magnetic poles of the magnetic pole faces of the adjacent first magnets 11 in the same direction are opposite, and the front side wall of the sliding cavity 9 is provided with six second magnets 12, which are arranged in a circular array along the axial direction of the driving rod 13, and the magnetic pole faces of the adjacent second magnets 12 in the same direction are opposite. When the first magnet 11 and the second magnet 12 are opposite, when the magnetic poles are the same, mutual repulsion can be achieved, and at this time, one of the two cutting blocks 2 can be driven to move forward; on the contrary, when the magnetic poles are opposite, mutual attraction can be achieved, and at this time, the other of the two cutting blocks 2 can be driven to move backward. The driving assembly can drive the driving rod 13 to rotate intermittently, and each rotation angle is 60 degrees. Initially, the first magnet 11 and the second magnet 12 should be ensured to be opposite to each other. Subsequently, the first magnet 11 and the second magnet 12 can be ensured to be opposite to each other by intermittently rotating 60 degrees again. The intermittent rotation can provide time for the cutting block 2 to complete the forward and backward movement.

[0065] Optionally, refer to Figure 4-5As shown, the driving assembly includes a first chamber 16, a first intermittent gear 17, a second intermittent gear 19, a driving rod 13, a first connecting rod 20, a transmission frame 21, a second connecting rod 23 and a driving motor 22. The first chamber 16 is a hollow structure, and the first chamber 16 is located in the housing 1 at the rear end of the cutting block 2. The driving rod 13 is rotatably connected to the side wall of the first chamber 16. The rear end of the driving rod 13 passes through the front side wall of the first chamber 16 and is splined to the first intermittent gear 17. A rotating shaft 18 is rotatably connected to the front side wall of the first chamber 16, and a second intermittent gear 19 is splined to the rotating shaft 18. The second intermittent gear 19 selectively meshes with the first intermittent gear 17 for transmission. The driving rod 13, the first intermittent gear 17 and the second intermittent gear 19 are connected to the first intermittent gear 17. The intermittent gears 19 are arranged in a one-to-one correspondence; the first connecting rod 20 and the rotating shaft 18 are arranged in a one-to-one correspondence, and one end of the first connecting rod 20 is fixedly connected to the rotating shaft 18; the transmission frame 21 is a triangular frame, and the bottom side of the transmission frame 21 is rotatably connected to the other end of the first connecting rod 20; the driving motor 22 is fixedly connected to the rear side wall of the first chamber 16, and the output shaft of the driving motor 22 is transmission-connected to one end of the second connecting rod 23, and the other end of the second connecting rod 23 is rotatably connected to the vertex of the transmission frame 21, and the second connecting rod 23 and multiple first connecting rods 20 are arranged in parallel.

[0066] When the driving motor 22 is in operation, it drives the second connecting rod 23 to rotate around its output shaft, transmits power through the transmission frame 21, causes the first connecting rod 20 to rotate around the rotating shaft 18, and then drives the rotating shaft 18 to rotate, and intermittently drives the driving rod 13 to rotate through the first intermittent gear 17 and the second intermittent gear 19.

[0067] Reference Figure 5 The second intermittent gear 19 is provided with a tooth segment and a convex arc segment, and the first intermittent gear 17 is provided with six tooth segments and six concave arc segments, and the six tooth segments and the six concave arc segments are arranged alternately. The tooth segment of the second intermittent gear 19 is meshed with the tooth segment of the first intermittent gear 17, and the convex arc segment of the second intermittent gear 19 and the concave arc segment of the first intermittent gear 17 are slidingly connected. Every rotation of the second intermittent gear 19 can drive the first intermittent gear 17 to rotate 60 degrees.

[0068] By setting the sliding cavity 9 and the drive plate 10 structure, it is possible to achieve that one of the two adjacent cutting blocks 2 can escape from the collection port when it moves forward. Similarly, the limiting structure includes a limiting rod 15 and a limiting groove 14, the bottom of the collection port is fixedly connected with the limiting rod 15, the limiting rod 15 is a screw, the screw is fixedly connected with the bottom thread of the collection port, the bottom of the other of the two adjacent cutting blocks 2 is provided with a limiting groove 14, the top of the limiting rod 15 is slidably connected with the limiting groove 14, when the other of the two adjacent cutting blocks 2 slides to the rear side, it abuts against the inner side wall of the shell 1, the limiting rod 15 slides to the front end of the limiting groove 14, when the other of the two adjacent cutting blocks 2 slides to the front end, the limiting rod 15 abuts against the rear end of the limiting groove 14, thereby preventing the other of the two adjacent cutting blocks 2 from escaping from the collection port when it moves forward.

[0069] Preferably, the shell 1 located above the rear end of the first chamber 16 is provided with a second chamber 24, and the second chamber 24 is also a hollow structure; the pumping mechanism includes a mud pump 25 and a connecting pipe 26 located in the second chamber 24, the mud pump 25 is driven by a motor, the input end of the mud pump 25 is connected to the collecting port through the connecting pipe 26, and the output end of the mud pump 25 is arranged through the second chamber 24.

[0070] Preferably, the front end of the front side wall of the first chamber 16 extends forward to form an extension section 27, the bottom surface of the extension section 27 is slidably connected to the rear end upper surface of the cutting block 2, the extension section 27 and the top surface of the first chamber 16 are integrally formed to form an inclined surface 28, and the inclined surface 28 and the cutting block 2 are both upwardly sloping toward the connecting tube 26.

[0071] Preferably, a plurality of streamlined bosses 3 are fixedly provided on the upper surface of the cutting block 2, and the plurality of bosses 3 are arranged at intervals along the front-to-back direction. The bosses 3 include an integrally formed triangular segment and a semicircular segment, and the triangular segment is located at the front side of the semicircular segment. The curve formula of the boss 3 along the inclined upward section is: Wherein, α is the height of the boss 3, χ is the abscissa value of the boss 3, and y is the ordinate value of the boss 3.

[0072] The boss 3 structure is provided. On the one hand, as the cutting block 2 moves backward, the sludge can be moved toward the connecting pipe 26; on the other hand, the cutting block 2 and the sludge are clamped together, and two adjacent cutting blocks 2 move in opposite directions. When one cutting block 2 moves backward, it can offset the backward force brought to the operator by the other cutting block 2 moving forward, so as to reduce the forward thrust of the operator. On the other hand, the cutting block 2 is in a moving state, which can loosen the sludge and the sludge and the bottom of the culvert, thereby achieving a separation effect, which is beneficial to the sludge collection process and reduces the physical exertion of the operator.

[0073] For ease of use, wheels 29 are provided on both sides of the housing 1 to facilitate movement of the housing 1. At the same time, a handle 30 is provided at the upper end of the housing 1 to facilitate operation by operators. Support legs 31 are provided below the second chamber 24 of the housing 1 to park the device when it is not in use.

[0074] It can be understood that the power for the drive motor 22 and the mud pump 25 can be provided by a battery (not shown in the figure) or an external power supply, and is controlled by a control unit. The control unit can be an ordinary air switch or a PLC device. This belongs to the prior art and will not be described here.

[0075] Reference Figure 4-6 The present invention provides a second aspect, which provides a method for using the above-mentioned urban drainage culvert sludge cleaning device, comprising the following steps:

[0076] Opening of inspection opening: Remove the part of the cover plate where dredging is needed to form an inspection opening so that workers can enter and exit freely.

[0077] Ventilation: Natural ventilation for 2 days. Before the operation, use multiple blowers to supply air from one opening and exhaust air from another opening to achieve mechanical ventilation. Continuous ventilation is required during the dredging process.

[0078] Gas detection: Detect toxic and harmful gases in the underground channel. Only when the detected gas meets the standard can you go down to the well to work.

[0079] Build construction cofferdams and pump out sewage from the channel: Build construction cofferdams in the culvert of the dredging section. The cofferdams are filled with clay in woven bags. The clay is filled in the woven bags and then piled up. The slope ratio of the back water surface is 1:1, and the slope ratio of the front water surface is 1:1.5. The front water surface and the top of the cofferdam are isolated with waterproof geotextile to prevent water seepage. The elevation of the cofferdam should be higher than the normal water level of the channel section where the construction is located, and not less than 0.5m. The length of the cofferdam is the same as the existing channel width. A cofferdam is set up every 400 meters. Use water pumps to pump rainwater to the downstream channel, and pump sewage to the nearest sewage well.

[0080] Dredging: The operator connects one end of the sewage pipe to the output end of the pumping mechanism. The other end of the sewage pipe is connected to the ground. The other end can be connected to a collecting device to collect the silt pumped to the ground. The driving mechanism is turned on to move the cutting block 2 in the front-to-back direction, and the pumping mechanism is turned on simultaneously. The housing 1 is controlled to move so that the collecting port is facing the silt, so that the silt collected through the collecting port is transported to the ground, thereby realizing the dredging process.

[0081] Channel flushing: Use high-pressure water guns to flush channels and pipes, and pump the flushing water to the nearest sewage network.

[0082] Restoration of the inspection opening: remove the construction cofferdam, install the culvert cover, and restore the inspection opening to its original state.

[0083] The method of using the urban drainage culvert sludge cleaning device is the same as the advantages of the above-mentioned urban drainage culvert sludge cleaning device over the prior art, and will not be repeated here.

[0084] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0085] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A device for cleaning sludge from an urban drainage culvert, characterized in that: include: A housing (1), wherein a collecting port is provided on the front side of the housing (1); A plurality of cutting blocks (2) slidably connected to the bottom of the collecting port, the cutting blocks (2) being wedge-shaped structures, and the tips of the cutting blocks (2) facing the collecting port; A driving mechanism installed on the housing (1), the driving mechanism being used to drive the cutting block (2) to move in a front-rear direction and to allow two adjacent cutting blocks (2) to slide in opposite directions; as well as A pumping mechanism is installed in the housing (1), the input end of the pumping mechanism is connected to the collecting port, and the pumping mechanism is used to collect sludge from its input end and discharge it from its output end.

2. The urban drainage culvert sludge cleaning device according to claim 1 is characterized in that: The driving mechanism is used to drive at least one of the two adjacent cutting blocks (2) to move in the front-rear direction; A blind hole (4) is provided on the side wall of one of the two adjacent cutting blocks (2), an elastic member (5) is provided in the blind hole (4) and is slidably connected to a sliding rod (6), and the elastic member (5) is used to drive one end of the sliding rod (6) to move in a direction away from the bottom of the blind hole (4); The other side wall of the two adjacent cutting blocks (2) is provided with a blind groove (7), the blind groove (7) is arranged opposite to the blind hole (4), the bottom of the blind groove (7) along the front-back direction is arranged in a wave shape, and one end of the sliding rod (6) is slidably connected to the bottom of the blind groove (7).

3. The urban drainage culvert sludge cleaning device according to claim 2 is characterized in that: A smooth protrusion (8) is arranged at the bottom of the blind groove (7) in the front-to-back direction. The protrusion (8) is arranged to protrude toward the blind hole (4), and one end of the sliding rod (6) is slidably connected to the protrusion (8).

4. The urban drainage culvert sludge cleaning device according to claim 2 is characterized in that: The driving mechanism is one of the following structures: Structure 1: A sliding cavity (9) is provided at the rear end of one of the two adjacent cutting blocks (2); a driving plate (10) is provided in the sliding cavity (9); a plurality of first magnets (11) are provided on the end surface of the driving plate (10); a plurality of second magnets (12) are provided on the cavity wall of the sliding cavity (9); the plurality of second magnets (12) and the plurality of first magnets (11) are arranged at intervals along the front-to-back direction, and the driving plate (10) is driven to rotate so as to achieve mutual attraction or repulsion between the first magnets (11) and the second magnets (12); A driving rod (13) rotatably connected to the housing (1), the driving rod (13) extending in the front-to-back direction, the front end of the driving rod (13) movably passes through one of the two adjacent cutting blocks (2) and is fixedly connected to the driving plate (10), the driving rod (13), the driving plate (10) and one of the two adjacent cutting blocks (2) are arranged in a one-to-one correspondence, a plurality of the first magnets (11) and a plurality of the second magnets (12) are distributed at intervals in a circumferential manner along the axis direction of the driving rod (13), and A driving assembly for driving the driving rod (13) to rotate; The other of the two adjacent cutting blocks (2) is provided with a limiting structure along the front-rear direction, and the limiting structure is used to limit the sliding displacement of the other of the two adjacent cutting blocks (2) along the front-rear direction; Structure 2: A sliding cavity (9) is provided at the rear end of another of the two adjacent cutting blocks (2); a driving plate (10) is provided in the sliding cavity (9); a plurality of first magnets (11) are provided on the end surface of the driving plate (10); a plurality of second magnets (12) are provided on the cavity wall of the sliding cavity (9); the plurality of second magnets (12) and the plurality of first magnets (11) are arranged at intervals along the front-to-back direction, and the driving plate (10) is driven to rotate so as to achieve mutual attraction or repulsion between the first magnets (11) and the second magnets (12); A driving rod (13) rotatably connected to the housing (1), the driving rod (13) extending in the front-to-back direction, the front end of the driving rod (13) movably passes through the other of the two adjacent cutting blocks (2) and is fixedly connected to the driving plate (10), the driving rod (13), the driving plate (10) and the other of the two adjacent cutting blocks (2) are arranged in a one-to-one correspondence, a plurality of the first magnets (11) and a plurality of the second magnets (12) are distributed at intervals in a circumferential manner along the axial direction of the driving rod (13), and A driving assembly for driving the driving rod (13) to rotate; One of the two adjacent cutting blocks (2) is provided with a limiting structure along the front-rear direction, and the limiting structure is used to limit the sliding displacement of the other of the two adjacent cutting blocks (2) along the front-rear direction.

5. The urban drainage culvert sludge cleaning device according to claim 4 is characterized in that: The first magnets (11) and the second magnets (12) are equal in number, and the plurality of the first magnets (11) and the plurality of the second magnets (12) are distributed in a circular array along the axial direction of the driving rod (13); the magnetic poles of the magnetic pole faces of adjacent first magnets (11) in the same direction are opposite, and the magnetic poles of the magnetic pole faces of adjacent second magnets (12) in the same direction are opposite. The driving component is used to drive the driving rod (13) to rotate intermittently and realize the intermittent relative arrangement of the first magnets (11) and the second magnets (12).

6. The urban drainage culvert sludge cleaning device according to claim 5 is characterized in that: The drive assembly comprises: The housing (1) located at the rear end of the cutting block (2) is provided with a first chamber (16), the driving rod (13) is rotatably connected to the side wall of the first chamber (16), the rear end of the driving rod (13) passes through the front side wall of the first chamber (16) and is spline-connected to a first intermittent gear (17), a rotating shaft (18) is rotatably connected to the front side wall of the first chamber (16), a second intermittent gear (19) is spline-connected to the rotating shaft (18), the second intermittent gear (19) is selectively meshed with the first intermittent gear (17) for transmission, and the driving rod (13), the first intermittent gear (17) and the second intermittent gear (19) are arranged in a one-to-one correspondence; a first connecting rod (20) arranged in one-to-one correspondence with the rotating shaft (18), one end of the first connecting rod (20) being fixedly connected to the rotating shaft (18); A transmission frame (21) rotatably connected to the other end of the first connecting rod (20); A drive motor (22) is fixedly connected to the rear side wall of the first chamber (16), the output shaft of the drive motor (22) is drivingly connected to one end of a second connecting rod (23), the other end of the second connecting rod (23) is rotationally connected to the transmission frame (21), and the second connecting rod (23) and the plurality of first connecting rods (20) are arranged in parallel.

7. The urban drainage culvert sludge cleaning device according to claim 6 is characterized in that: The housing (1) is provided with a second chamber (24) located above the rear end of the first chamber (16); the pumping mechanism comprises a mud pump (25) and a connecting pipe (26) located in the second chamber (24); the input end of the mud pump (25) is connected to the collecting port through the connecting pipe (26), and the output end of the mud pump (25) is arranged through the upper end of the second chamber (24).

8. The urban drainage culvert sludge cleaning device and the use method thereof according to claim 7, characterized in that: The front end of the front side wall of the first chamber (16) extends forward to form an extension section (27), the bottom surface of the extension section (27) is slidably connected to the rear end upper surface of the cutting block (2), the extension section (27) and the top surface of the first chamber (16) are integrally formed to form an inclined surface (28), and the inclined surface (28) and the cutting block (2) are both inclined upward toward the connecting pipe (26).

9. The urban drainage culvert sludge cleaning device according to any one of claims 1 to 8, characterized in that: A plurality of streamlined bosses (3) are fixedly arranged on the upper surface of the cutting block (2), the plurality of bosses (3) being arranged at intervals along the front-rear direction, the bosses (3) comprising an integrally formed triangular segment and a semicircular segment, the triangular segment being located at the front side of the semicircular segment.

10. A method for using the urban drainage culvert sludge cleaning device according to any one of claims 1 to 9, characterized in that: The following steps are involved: Inspection opening: remove the cover plate of the culvert that needs to be desilted to form at least two inspection openings so that workers can enter and exit freely; Ventilation: Natural ventilation for several days. Before the operation, use a blower to supply air from one opening of two adjacent inspection ports and extract air from the other opening to achieve mechanical ventilation. Continuous ventilation is required during the dredging process; Gas detection: Detect toxic and harmful gases in the underground channel. Only when the detected gas meets the standard can the well be operated; Build construction cofferdams and pump out sewage in the canal: Build construction cofferdams in the culvert of the desilting section. The cofferdam elevation should be higher than the normal water level of the canal section where the construction is located. The cofferdam length should be the same as the existing canal width. A cofferdam should be set up at a certain interval. Use water pumps to pump out rainwater to the downstream canal, and pump out sewage to the nearest sewage well; Desilting: The operator connects one end of the sewage pipe to the output end of the pumping mechanism, and the other end of the sewage pipe is connected to the ground, and the driving mechanism is turned on to move the cutting block (2) in the front-back direction, and the pumping mechanism is turned on simultaneously, and the collection port is moved toward the silt by controlling the housing (1), so that the silt collected through the collection port is transported to the ground, thereby realizing the desilting process; Channel flushing: Use high-pressure water guns to flush channels and pipes, and pump the flushing water to the nearest sewage pipe network; Restoration of the inspection opening: remove the construction cofferdam, install the culvert cover, and restore the inspection opening to its original state.

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