Multifunctional dredging equipment for dredging municipal pipelines

Abstract

The invention relates to the technical field of pipeline desilting, in particular to multifunctional desilting equipment for municipal pipeline desilting, which comprises a special moving trolley, a temporary storage tank, a collecting and conveying mechanism, a dividing and cutting mechanism and a sludge pump, the temporary storage tank is mounted on the side part of the special moving trolley through a mounting frame and is used for storing slurry, and the front side of the temporary storage tank is connected with a conveying cylinder; the collecting and conveying mechanism is arranged in the conveying cylinder and used for collecting sludge accumulated in the pipeline and conveying the sludge to one side of the temporary storage tank. Sludge accumulated in the pipeline is collected and conveyed into the temporary storage tank, water is flushed to form slurry, the slurry in the temporary storage tank is pumped out through the sludge pump, and the purpose of pipeline dredging can be achieved. A closed system provided by the temporary storage tank effectively restrains water and slurry to flow, suction and discharge are facilitated, the closed system avoids disordered flow of water, the water saving rate is high, and the desilting cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline desilting, in particular to multifunctional desilting equipment for desilting municipal pipelines. Background Art

[0002] During long-term use, sediments such as silt, garbage, and oil will accumulate in municipal sewer pipes, resulting in reduced pipe diameters and poor water flow, which can easily lead to blockages and waterlogging. At the same time, silt can easily breed bacteria and mosquitoes, exacerbating pipe corrosion and polluting the environment. Regular desilting of municipal pipes can dredge pipes, restore drainage capacity, prevent safety hazards, extend the life of facilities, and ensure the health of the urban water environment and the quality of life of residents.

[0003] The traditional method of pipeline desilting mainly uses high-pressure water flow to disperse the silt accumulated in the pipeline and form mud, and then uses a sewage suction truck to suck the mud into the tank on the truck to achieve municipal pipeline desilting. However, in order to ensure that the sludge can form sucked mud in the pipeline and avoid sludge sedimentation, it is necessary to ensure that the water level in the pipeline is maintained at a certain height, and the mud and flushing water are fluid, which increases the difficulty of sludge suction. In addition, the flushing water flows randomly and cannot gather, resulting in large water consumption and increasing the cost of municipal pipeline desilting. Summary of the invention

[0004] The purpose of the present invention is to provide a multifunctional dredging device for municipal pipeline dredging to solve the technical problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions.

[0006] The multifunctional dredging equipment for municipal pipeline dredging comprises a special mobile trolley, a temporary storage tank, a collecting and conveying mechanism, a dividing and cutting mechanism and a sludge pump. The temporary storage tank is installed on the side of the special mobile trolley through a mounting frame and is used to store sludge. The front side of the temporary storage tank is connected with a conveying cylinder. The collecting and conveying mechanism is arranged in the conveying cylinder and is used to collect the accumulated sludge in the pipeline and convey it to one side of the temporary storage tank. The dividing and cutting mechanism is arranged in the conveying cylinder and is located between the collecting and conveying mechanism and the temporary storage tank. The dividing and cutting mechanism comprises a first diverter device and a second diverter device. The first diverter device and the second diverter device are used to rotate relative to each other to divide the sludge into a plurality of small blocks. A high-pressure nozzle is arranged in the second diverter device. The high-pressure nozzle is used to disperse the sludge divided into a plurality of small blocks into the temporary storage tank to form sludge. The sludge pump is arranged at the lower side of the temporary storage tank. The inlet of the sludge pump is connected with the temporary storage tank, and the outlet is connected with an external sewage collecting tank truck through a discharge pipe.

[0007] The purpose of pipeline desilting can be achieved by collecting and transporting the accumulated sludge in the pipeline to a temporary storage tank, flushing water to form sludge, and using a sludge pump to pump out the sludge in the temporary storage tank. Compared with traditional desilting methods, the water and sludge form sludge in the temporary storage tank. The temporary storage tank provides a closed system to effectively restrict the flow of water and sludge, which is convenient for suction and discharge. The closed system prevents the disorderly flow of water, has a high water saving rate, reduces the desilting cost, and also prevents the sludge from flowing to other network pipes at will and causing pollution, effectively improving the desilting effect. During the transportation process, the sludge is cut into small pieces and dispersed, which increases the contact area between the sludge and water, accelerates the dissolution of sludge blocks to form sludge, reduces the operation time, and effectively improves the desilting efficiency.

[0008] Preferably, a rotating shaft is installed together in the temporary storage tank and the conveying cylinder, and a driving mechanism for driving the rotating shaft to rotate is provided on the side of the temporary storage tank. The rotating shaft is connected to the collecting and conveying mechanism to provide power for the collecting and conveying mechanism to convey the sludge. The part of the outer wall of the rotating shaft located in the temporary storage tank is evenly distributed with stirring rods, and a water supply cavity is provided in the rotating shaft for supplying water to the high-pressure nozzle.

[0009] Preferably, the first diverter device includes a first sleeve, a first diverter plate and a first annular frame. The first sleeve is rotatably mounted on the rotating shaft. The first annular frame is coaxially arranged on the periphery of the first sleeve and fixed to the inner wall of the conveying cylinder. A plurality of first diverter plates are fixed in an annular array on the outer edge wall of the first sleeve. The ends of each first diverter plate are fixed to the inner wall of the first annular frame, and a first channel is formed between two adjacent first diverter plates.

[0010] Preferably, the second diverter device includes a second sleeve, a second diverter plate and a second annular frame. The second sleeve is fixedly mounted on the rotating shaft, the second annular frame is coaxially arranged on the outside of the second sleeve and is rotatably connected to the inner wall of the conveying cylinder, and a plurality of second diverter plates are fixed in an annular array on the outer wall of the second sleeve. The ends of each second diverter plate are fixed to the inner wall of the second annular frame, and a second channel is formed between two adjacent second diverter plates. A high-pressure nozzle is installed in each second channel and on the inner edge wall of the second annular frame.

[0011] Preferably, each high-pressure nozzle is arranged in an inclined shape toward the axis of the temporary storage tank, and the angle between the high-pressure nozzle and the inner edge wall of the second annular frame is defined as R, 30°≤R≤65°.

[0012] Preferably, the conveying cylinder consists of a small diameter portion and a large diameter portion, the small diameter portion is connected to the temporary storage tank, the first diversion device and the second diversion device are both arranged in the small diameter portion, the diameter ratio of the small diameter portion to the large diameter portion is 0.7:1-0.8:1, and there is an accumulation area at the junction of the small diameter portion and the large diameter portion in the conveying cylinder. The sludge can be squeezed into a sludge accumulation body in the accumulation area, and the sludge accumulation body can block the mud in the temporary storage tank from flowing outward.

[0013] Preferably, the driving mechanism includes an anti-pollution box fixed on the outer wall of the temporary storage tank, a driving motor installed in the anti-pollution box, and a main gear fixed on the output shaft of the driving motor. One end of the rotating shaft extends through the outside of the temporary storage tank and is fixedly mounted with a driven gear, which is meshed with the main gear.

[0014] Preferably, an adapter sleeve is installed through the anti-pollution box, the partially sealed rotating sleeve of the adapter sleeve located in the anti-pollution box is connected to the rotating shaft and is connected to the water supply cavity, a water supply pipe is connected to the outer wall of the adapter sleeve, the water supply pipe is connected to an external water supply device, an annular cavity communicating with each high-pressure nozzle is provided in the second annular frame, a water pipe is provided in the second diverter plate, one end of the water pipe extends through the second annular frame and communicates with the annular cavity, and the other end extends through the rotating shaft and communicates with the water supply cavity.

[0015] Preferably, the collecting and conveying mechanism includes a Jiaolong conveying rod, a collecting cover and a drill bit. The Jiaolong conveying rod is arranged in the large diameter part and is fixed to the end of the rotating shaft. The collecting cover is mounted on the conveying cylinder. The Jiaolong conveying rod extends into the collecting cover. The drill bit is fixed on the end of the Jiaolong conveying rod, and a plurality of spiral plates are evenly distributed on the outer wall. The drill bit extends to the outside of the front side of the collecting cover.

[0016] Preferably, the mounting frame includes a base, a screw and a nut seat. The base is installed on the side of the special mobile vehicle, the screw is vertically rotatably installed on the base, the nut seat is threadedly mounted on the screw, a pair of connecting arms are fixed to the side of the nut seat, the temporary storage tank is fixed on the ends of the two connecting arms, a pair of vertically extending guide rods are fixed on the base, the nut seat is slidably mounted on the two guide rods, and a handwheel is installed on the top of the screw.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows.

[0018] The present invention collects and transports the sludge accumulated in the pipeline to a temporary storage tank, flushes water to form mud, and uses a sludge pump to pump out the mud in the temporary storage tank, so as to achieve the purpose of pipeline dredging. Compared with the traditional dredging method, the water body and the sludge form the sludge in the temporary storage tank. The temporary storage tank provides a closed system to effectively restrain the flow of water and mud, which is convenient for suction and discharge. The closed system avoids disorderly flow of water, has a high water saving rate, reduces dredging costs, and also avoids the sludge from flowing randomly to other network pipes to cause pollution, thereby effectively improving the dredging effect.

[0019] During the transportation process, the sludge is cut into small pieces and dispersed, which increases the contact area between the sludge and water, accelerates the dissolution of sludge pieces to form mud, reduces operation time, and effectively improves dredging efficiency.

[0020] The present invention arranges the high-pressure nozzle to be inclined toward the axis of the temporary storage tank. The high-pressure nozzle sprays water toward the axis of the temporary storage tank, which can impact the sludge to move axially into the temporary storage tank and produce a shearing and crushing effect, which is beneficial to breaking up the sludge blocks and increasing the passage of the sludge blocks. In addition, the high-pressure nozzle is set at the above angle to ensure that part of the water sprayed on the sludge can splash into the first channel, and the sludge in the first channel can be pre-humidified to ensure the smoothness of the sludge when passing through the first channel. At the same time, the water content of the sludge in the first channel is increased, the subsequent mud formation time is shortened, and the dredging efficiency is further improved.

[0021] The present invention adopts a variable diameter design in which the diameter of the small diameter part is smaller than that of the large diameter part, so that when the sludge is continuously transported to the small diameter part by the dragon conveying rod, it will not be quickly discharged into the temporary storage tank. Therefore, the sludge can accumulate in the accumulation area to form a sludge accumulation body, which can prevent the water body and part of the mud from flowing out, and further improve the utilization rate of the water body. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic cross-sectional view of a local structure of the present invention; Figure 3 It is a schematic diagram of the structure of the splitting and truncation mechanism in the present invention; Figure 4 for Figure 3 A schematic diagram of a local structure of the structure; Figure 5 is a detailed structural schematic diagram of the second flow diversion device in the present invention; Figure 6 A schematic diagram of the angle between the high-pressure nozzle and the inner wall of the second annular frame in the present invention; Figure 7 This is a schematic diagram of the connection between the special mobile trolley and the temporary storage tank in the present invention; Figure 8 It is a detailed structural diagram of the mounting frame in the present invention; Fig. 9 for Figure 8 A schematic cross-sectional view of the structure shown; Fig.10 for Fig. 9 A schematic diagram of the structure enlargement in the middle; Fig.11 Schematic diagram of the location where sludge accumulation is formed.

[0023] In the figure: 01, rotating shaft; 011, water supply channel; 02, stirring rod; 03, accumulation area; 04, sludge accumulation body; 1, special mobile trolley; 2, mounting frame; 21, base; 211, bolt A; 22, screw; 221, hand wheel; 23, nut seat; 24, guide rod; 25, connecting arm; 3, temporary storage tank; 4, conveying cylinder; 41, small diameter part; 42, large diameter part; 5, collecting and conveying mechanism; 51, Jiaolong conveying rod; 52, collecting cover; 521, flange; 522, bolt B; 53, drill bit; 54, spiral plate; 6, dividing section Cut-off mechanism; 61, first diverter; 611, first sleeve; 612, first diverter plate; 613, first annular frame; 614, first channel; 62, second diverter; 621, second sleeve; 622, second diverter plate; 623, second annular frame; 624, second channel; 625, high-pressure nozzle; 626, water guide pipe; 627, annular cavity; 7, driving mechanism; 71, anti-fouling box; 72, driving motor; 73, main gear; 74, driven gear; 8, sludge pump; 81, discharge pipe; 9, adapter sleeve; 91, water supply pipe. DETAILED DESCRIPTION

[0024] See also Figure 1-Figure 11 The present invention provides a method for desilting municipal pipelines. The embodiments of the present invention are described below in conjunction with the drawings in the embodiments of the present invention.

[0025] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms, "connection" and "installation" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, "connection" can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed" means that they are connected to each other and the relative position relationship after connection remains unchanged. The directional terms mentioned in the embodiments of the present invention, such as "inside", "outside", "top", "bottom", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0026] In the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0027] In the embodiments of the present invention, "and / or" is only a description of the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0028] References to "one embodiment" or "some embodiments" etc. described in this specification mean that a particular feature, structure or characteristic described in conjunction with the embodiment is included in one or more embodiments of the present invention. Thus, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. appearing in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0029] The multifunctional dredging equipment comprises a special mobile trolley 1, a temporary storage tank 3, a collecting and conveying mechanism 5, a splitting and cutting mechanism 6 and a sludge pump 8. The temporary storage tank 3 is installed on the side of the special mobile trolley 1 through a mounting frame 2 for storing mud. The front side of the temporary storage tank 3 is connected with a conveying cylinder 4. The collecting and conveying mechanism 5 is arranged in the conveying cylinder 4 for collecting the accumulated sludge in the pipeline and conveying it to one side of the temporary storage tank 3. The splitting and cutting mechanism 6 is arranged in the conveying cylinder 4 and is located between the collecting and conveying mechanism 5 and the temporary storage tank 3. The cut-off mechanism 6 includes a first diverter device 61 and a second diverter device 62. The first diverter device 61 and the second diverter device 62 are used to rotate relative to each other to separate the sludge into a number of small blocks. A high-pressure nozzle 625 is provided in the second diverter device 62. The high-pressure nozzle 625 is used to flush the sludge separated into a number of small blocks into the temporary storage tank 3 to form slurry. The sludge pump 8 is arranged at the lower side of the temporary storage tank 3. The inlet of the sludge pump 8 is connected to the temporary storage tank 3, and the outlet is connected to the external sewage tank truck through the discharge pipe 81.

[0030] In the specific process of desilting the municipal pipeline, a special mobile trolley 1 is used to move the equipment to the desired desilting position, and the collecting and conveying mechanism 5 is used to collect the sludge accumulated in the pipeline and convey it to the temporary storage tank 3. During the conveying process, the first diverter device 61 and the second diverter device 62 are used to rotate relative to each other to divide and cut the clumped sludge into small blocks. The small blocks of sludge are flushed into the temporary storage tank 3 by flushing water in the annular cavity 627. The sludge and water are mixed into slurry and temporarily stored in the temporary storage tank 3. The sludge pump 8 is used to suck the sludge in the temporary storage tank 3 and convey it to the sewage storage tank of the external sewage collection tank truck through the discharge pipe 81 to achieve desilting.

[0031] The sludge accumulated in the pipeline is collected and transported to the temporary storage tank 3, and water is flushed to form mud. The sludge in the temporary storage tank 3 is pumped out by the sludge pump 8, so the purpose of pipeline dredging can be achieved. Compared with the traditional dredging method, the water body and sludge form sludge in the temporary storage tank 3. The closed system provided by the temporary storage tank 3 effectively restricts the flow of water and mud, and is convenient for suction and discharge. The closed system avoids disorderly flow of water, has a high water saving rate, reduces dredging costs, and also prevents sludge from flowing randomly to other network pipes and causing pollution, effectively improving the dredging effect.

[0032] In addition, during the transportation process, the sludge is cut into small pieces and dispersed, which increases the contact area between the sludge and water, accelerates the dissolution of sludge pieces to form mud, reduces operation time, and effectively improves dredging efficiency.

[0033] See also Figure 2 , Figure 8 and Fig. 9 A rotating shaft 01 is installed in the temporary storage tank 3 and the conveying cylinder 4. The rotating shaft 01 is rotatably connected to the temporary storage tank 3. A driving mechanism 7 for driving the rotating shaft 01 to rotate is provided on the side of the temporary storage tank 3. The rotating shaft 01 is connected to the collecting and conveying mechanism 5 to provide power for the collecting and conveying mechanism 5 to convey sludge. The driving mechanism 7 includes an anti-pollution box 71 fixed on the outer wall of the temporary storage tank 3, a driving motor 72 installed in the anti-pollution box 71, and a main gear 73 fixed on the output shaft of the driving motor 72. One end of the rotating shaft 01 extends through and extends to the outside of the temporary storage tank 3, and is fixedly mounted with a driven gear 74, which is meshed with the main gear 73. The driving motor 72, the main gear 73 and the driven gear 74 are arranged in the anti-pollution box 71. The anti-pollution box 71 can provide waterproof and anti-fouling protection for the driving motor 72, the main gear 73 and the driven gear 74. The outer wall of the rotating shaft 01 located in the temporary storage tank 3 is evenly distributed with stirring rods 02.

[0034] By driving the motor 72, its output shaft drives the main gear 73 to rotate, the rotating main gear 73 engages with the driven gear 74 and drives the rotating shaft 01 to rotate, the rotating rotating shaft 01 can drive the water supply cavity 011 to rotate, and the water supply cavity 011 rotates in the temporary storage tank 3 to achieve the stirring effect on the mud, avoid sludge sedimentation, and improve the suction effect of the sludge.

[0035] The collecting and conveying mechanism 5 includes a Jiaolong conveying rod 51, a collecting cover 52 and a drill bit 53. The Jiaolong conveying rod 51 is arranged in the large diameter part 42 and is fixed to the end of the rotating shaft 01. The collecting cover 52 is mounted on the conveying cylinder 4. The Jiaolong conveying rod 51 extends into the collecting cover 52. The drill bit 53 is fixed on the end of the Jiaolong conveying rod 51, and a plurality of spiral plates 54 are evenly distributed on the outer wall. The drill bit 53 extends to the outside of the front side of the collecting cover 52.

[0036] When the sludge accumulated in the pipeline is collected and transported to the temporary storage tank 3, the dragon conveying rod 51 rotates with the rotating shaft 01, and the drill bit 53 and the spiral plate 54 rotate with the dragon conveying rod 51. As the special mobile vehicle 1 moves forward, the spiral plate 54 on the drill bit 53 rotates to break up the accumulated sludge and guide it into the collection cover 52. The rotating dragon conveying rod 51 uses the spiral conveying blades to spirally transport the sludge entering the collection cover 52 to one side of the temporary storage tank 3, thereby achieving the breaking up and collection and transportation of the sludge.

[0037] It is worth noting that there are multiple collecting hoods 52, with shapes including but not limited to circular trumpet and rectangular shapes, and with different sizes. The collecting hood 52 is mounted on the conveying cylinder 4 and is fastened by the cooperation of the flange 521 and the bolt B522. It has a detachable effect, which is convenient for replacing the appropriate collecting hood 52 according to municipal pipelines with different cross-sectional shapes and different inner diameters.

[0038] See also Figure 2 , Figure 3 , Figure 4 and Figure 5 The first diverter device 61 includes a first sleeve 611, a first diverter plate 612 and a first annular frame 613. The first sleeve 611 is rotatably mounted on the rotating shaft 01. The first annular frame 613 is coaxially arranged on the periphery of the first sleeve 611 and is fixed to the inner wall of the conveying cylinder 4. A plurality of first diverter plates 612 are fixed in an annular array on the outer edge wall of the first sleeve 611. The ends of each first diverter plate 612 are fixed to the inner wall of the first annular frame 613. A first channel 614 is formed between two adjacent first diverter plates 612. The first diverter device 61 as a whole does not rotate with the rotating shaft 01 and is stationary relative to the conveying cylinder 4.

[0039] The second diverter device 62 includes a second sleeve 621, a second diverter plate 622 and a second annular frame 623. The second sleeve 621 is fixedly mounted on the rotating shaft 01. The second annular frame 623 is coaxially arranged on the outside of the second sleeve 621 and is rotatably connected to the inner wall of the conveying cylinder 4. A plurality of second diverter plates 622 are fixed in an annular array on the outer wall of the second sleeve 621. The ends of each second diverter plate 622 are fixed to the inner wall of the second annular frame 623. A second channel 624 is formed between two adjacent second diverter plates 622. A high-pressure nozzle 625 is installed in each second channel 624 and on the inner edge wall of the second annular frame 623. The second diverter device 62 rotates synchronously with the rotating shaft 01. When the equipment is running, it rotates relative to the first diverter device 61.

[0040] During the specific dredging, as the Jiaolong conveying rod 51 continuously spirally conveys the sludge, the sludge is pressed into each first channel 614 to achieve sludge segmentation and refine the sludge volume. As the subsequent sludge continues to be pushed, the sludge in the first channel 614 will be squeezed into the second channel 624. Since the second diverter device 62 rotates with the rotating shaft 01 as a whole, it rotates relative to the first diverter device 61 as a whole, the sludge is cut off, and the sludge is further refined. The high-pressure nozzle 625 arranged in the second channel 624 sprays water to disperse the sludge in the second channel 624 into the temporary storage tank 3, so as to facilitate the formation of mud in the temporary storage tank 3.

[0041] like Figure 5 and Figure 6 As shown, each high-pressure nozzle 625 is arranged in an inclined shape toward the axis of the temporary storage tank 3, and the angle between the high-pressure nozzle 625 and the inner edge wall of the second annular frame 623 is defined as R, wherein 30°≤R≤65°, to ensure a balance between the conveying resistance and the propulsion force.

[0042] Since the moving direction of the sludge in the second channel 624 is from the conveying cylinder 4 to the temporary storage tank 3, the high-pressure nozzle 625 is arranged to be inclined toward the axis of the temporary storage tank 3. The high-pressure nozzle 625 sprays water toward the axis of the temporary storage tank 3, which can impact the sludge to move axially into the temporary storage tank 3 and produce a shearing and crushing effect, which is beneficial to breaking up the sludge blocks and increasing the passage of the sludge blocks. In addition, the high-pressure nozzle 625 is set at the above angle to ensure that part of the water sprayed on the sludge can splash into the first channel 614, and the sludge in the first channel 614 can be pre-humidified to ensure the smoothness of the sludge when passing through the first channel 614. At the same time, the water content of the sludge in the first channel 614 is increased, the subsequent mud formation time is shortened, and the dredging efficiency is further improved.

[0043] See also Fig.11 The conveying cylinder 4 is composed of a small diameter portion 41 and a large diameter portion 42. The small diameter portion 41 is connected to the temporary storage tank 3. The first diversion device 61 and the second diversion device 62 are both arranged in the small diameter portion 41. The diameter ratio of the small diameter portion 41 to the large diameter portion 42 is 0.7:1-0.8:1. There is an accumulation area 03 at the junction of the small diameter portion 41 and the large diameter portion 42 in the conveying cylinder 4. The sludge can be squeezed into a sludge accumulation body 04 in the accumulation area 03, and the sludge accumulation body 04 can prevent the mud in the temporary storage tank 3 from flowing outward.

[0044] Through the variable diameter design in which the diameter of the small diameter portion 41 is smaller than that of the large diameter portion 42, the sludge will not be quickly discharged into the temporary storage tank 3 when it is continuously transported to the small diameter portion 41 by the dragon conveying rod 51. The sludge can then accumulate in the accumulation area 03 to form a sludge accumulation body 04, which can prevent the water body and part of the mud from flowing out, further improving the utilization rate of the water body.

[0045] See also Figure 4 , Figure 5 , Fig. 9 and Fig.10 , there is a water supply cavity 011 in the rotating shaft 01, which is used to supply water to the high-pressure nozzle 625. An adapter sleeve 9 is installed through the anti-fouling box 71. The partially sealed rotating sleeve of the adapter sleeve 9 located in the anti-fouling box 71 is connected to the rotating shaft 01 and is connected to the water supply cavity 011. A water supply pipe 91 is connected to the outer wall of the adapter sleeve 9, and the water supply pipe 91 is connected to an external water supply device. An annular cavity 627 that is connected to each high-pressure nozzle 625 is provided in the second annular frame 623, and a water guide pipe 626 is provided in the second diverter plate 622. One end of the water guide pipe 626 extends through the second annular frame 623 and is connected to the annular cavity 627, and the other end extends through the rotating shaft 01 and is connected to the water supply cavity 011.

[0046] The water is transported to the sludge pump 8 through the water supply pipe 91 by an external water supply device. The water enters the water supply cavity 011 through the adapter sleeve 9, and then flows into the annular cavity 627 through the water guide pipe 626 to supply water to the high-pressure nozzle 625. The adapter sleeve 9 is rotatably connected to the rotating shaft 01, which can adapt to the rotation of the rotating shaft 01 to achieve continuous water supply. In addition, the rotating shaft 01 serves as both a driving shaft and a water supply component, killing two birds with one stone.

[0047] See also Figure 7 and Figure 8 The mounting frame 2 includes a base 21, a screw 22 and a nut seat 23. The base 21 is installed on the side of the special mobile trolley 1. The screw 22 is vertically rotatably installed on the base 21. The nut seat 23 is threadedly matched and sleeved on the screw 22. A pair of connecting arms 25 are fixed on the side of the nut seat 23. The temporary storage tank 3 is fixed on the ends of the two connecting arms 25. A pair of vertically extending guide rods 24 are fixed on the base 21. The nut seat 23 is slidably sleeved on the two guide rods 24. A hand wheel 221 is installed on the top of the screw 22. The screw 22 is screwed by pinching the hand wheel 221. The rotating screw 22 thread drives the nut seat 23 to slide up and down along the guide rod 24, thereby driving the temporary storage tank 3 and the components thereon to be lifted and adjusted to meet the dredging needs of municipal pipelines with different inner diameters.

[0048] It is worth noting that the base 21 is fastened to the side of the special mobile vehicle 1 by bolts A211, and has a detachable effect. By moving the base 21 up and down from the special mobile vehicle 1, the overall length can be shortened, making transportation and transfer easier.

[0049] The present invention realizes the sludge breaking up, collecting and conveying function through the collecting and conveying mechanism 5, realizes the sludge cutting and flushing function through the dividing and cutting mechanism 6, realizes the collection and restraining function of mud and water through the temporary storage tank 3, and realizes the mud suction function through the sludge pump 8, thereby making the dredging equipment provided by the present application have multifunctional characteristics.

[0050] In addition, when the rotating shaft 01 rotates, it drives the stirring rod 02 to stir, which has an anti-sedimentation effect, drives the second diversion device 62 to rotate, and realizes the segmentation and refinement of the sludge blocks. At the same time, it can also drive the dragon conveying rod 51 and the drill bit 53 to rotate, sharing the same driving source.

[0051] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

Claims

1. A multifunctional dredging device for municipal pipeline dredging, comprising a special mobile vehicle (1), characterized in that: Also includes: A temporary storage tank (3), the temporary storage tank (3) being mounted on the side of the special mobile vehicle (1) via a mounting frame (2) and being used for storing mud, the front side of the temporary storage tank (3) being connected to a conveying cylinder (4); A collecting and conveying mechanism (5), the collecting and conveying mechanism (5) being arranged in the conveying cylinder (4) and being used for collecting the accumulated sludge in the pipeline and conveying it to one side of the temporary storage tank (3); a dividing and cutting mechanism (6), the dividing and cutting mechanism (6) being arranged in the conveying cylinder (4) and between the collecting and conveying mechanism (5) and the temporary storage tank (3), the dividing and cutting mechanism (6) comprising a first flow dividing device (61) and a second flow dividing device (62), the first flow dividing device (61) and the second flow dividing device (62) being rotated relative to each other to divide the sludge into a plurality of small blocks, the second flow dividing device (62) being provided with a high-pressure nozzle (625), the high-pressure nozzle (625) being used to disperse the sludge divided into a plurality of small blocks into the temporary storage tank (3) to form slurry; A sludge pump (8), the sludge pump (8) being arranged at a lower side of the temporary storage tank (3), the inlet of the sludge pump (8) being connected to the temporary storage tank (3), and the outlet of the sludge pump (8) being connected to an external sewage tank truck via a discharge pipe (81).

2. The multifunctional dredging equipment for municipal pipeline dredging according to claim 1 is characterized in that: A rotating shaft (01) is installed in both the temporary storage tank (3) and the conveying cylinder (4), and a driving mechanism (7) for driving the rotating shaft (01) to rotate is provided on the side of the temporary storage tank (3); The rotating shaft (01) is connected to the collecting and conveying mechanism (5) to provide power for the collecting and conveying mechanism (5) to convey sludge; The portion of the outer wall of the rotating shaft (01) located inside the temporary storage tank (3) is evenly distributed with stirring rods (02); The rotating shaft (01) has a water supply cavity (011) therein for supplying water to the high-pressure nozzle (625).

3. The multifunctional dredging equipment for municipal pipeline dredging according to claim 2 is characterized in that: The first flow dividing device (61) comprises a first sleeve (611), a first flow dividing plate (612) and a first annular frame (613); The first sleeve (611) is rotatably mounted on the rotating shaft (01); the first annular frame (613) is coaxially arranged on the periphery of the first sleeve (611) and is fixed to the inner wall of the conveying cylinder (4); A plurality of first flow divider plates (612) are fixed in an annular array on the outer edge wall of the first sleeve (611), and the end of each first flow divider plate (612) is fixed to the inner wall of the first annular frame (613), and a first channel (614) is formed between two adjacent first flow divider plates (612).

4. The multifunctional dredging equipment for municipal pipeline dredging according to claim 2 is characterized in that: The second flow dividing device (62) comprises a second sleeve (621), a second flow dividing plate (622) and a second annular frame (623); The second sleeve (621) is fixedly sleeved on the rotating shaft (01); the second annular frame (623) is coaxially arranged outside the second sleeve (621) and is rotatably connected to the inner wall of the conveying cylinder (4); A plurality of second flow divider plates (622) are fixed in an annular array on the outer wall of the second sleeve (621), and an end of each second flow divider plate (622) is fixed to the inner wall of the second annular frame (623); A second channel (624) is formed between two adjacent second diverter plates (622), and a high-pressure nozzle (625) is installed in each second channel (624) and on the inner edge wall of the second annular frame (623).

5. The multifunctional dredging equipment for municipal pipeline dredging according to claim 4 is characterized in that: Each of the high-pressure nozzles (625) is arranged in an inclined manner toward the axis of the temporary storage tank (3); The included angle between the high-pressure nozzle (625) and the inner edge wall of the second annular frame (623) is defined as R, 30°≤R≤65°.

6. The multifunctional dredging equipment for municipal pipeline dredging according to claim 5 is characterized in that: The conveying cylinder (4) is composed of a small diameter portion (41) and a large diameter portion (42), the small diameter portion (41) is connected to the temporary storage tank (3), and the first flow dividing device (61) and the second flow dividing device (62) are both arranged in the small diameter portion (41); The diameter ratio of the small diameter portion (41) to the large diameter portion (42) is 0.7:1-0.8:1; The conveying cylinder (4) has an accumulation area (03) at the junction of the small diameter portion (41) and the large diameter portion (42), and the sludge can be squeezed into a sludge accumulation body (04) in the accumulation area (03); The sludge accumulation body (04) can prevent the sludge in the temporary storage tank (3) from flowing outwards.

7. The multifunctional dredging equipment for municipal pipeline dredging according to claim 4 is characterized in that: The driving mechanism (7) comprises an anti-pollution box (71) fixed on the outer wall of the temporary storage tank (3), a driving motor (72) installed in the anti-pollution box (71), and a main gear (73) fixed on the output shaft of the driving motor (72); One end of the rotating shaft (01) extends through the outside of the temporary storage tank (3) and is fixedly mounted with a driven gear (74), wherein the driven gear (74) meshes with the main gear (73) accordingly.

8. The multifunctional dredging equipment for municipal pipeline dredging according to claim 7 is characterized in that: An adapter sleeve (9) is installed through the anti-fouling box (71); the portion of the adapter sleeve (9) located inside the anti-fouling box (71) is sealed and rotatably sleeved on the rotating shaft (01) and is in communication with the water supply cavity (011); A water supply pipe (91) is connected to the outer wall of the adapter sleeve (9), and the water supply pipe (91) is in communication with an external water supply device; An annular cavity (627) is provided in the second annular frame (623) and is in communication with each high-pressure nozzle (625). A water guide pipe (626) is provided in the second diverter plate (622). One end of the water guide pipe (626) extends through the second annular frame (623) to communicate with the annular cavity (627), and the other end extends through the rotating shaft (01) to communicate with the water supply cavity (011).

9. The multifunctional dredging equipment for municipal pipeline dredging according to claim 6, characterized in that: The collecting and conveying mechanism (5) comprises a dragon conveying rod (51), a collecting cover (52) and a drill bit (53); The dragon conveying rod (51) is disposed in the large diameter portion (42) and is fixed to the end of the rotating shaft (01); The collecting cover (52) is sleeved on the conveying cylinder (4), and the dragon conveying rod (51) extends into the collecting cover (52); The drill bit (53) is fixed to the end of the dragon delivery rod (51), and a plurality of spiral plates (54) are evenly distributed on the outer wall; The drill bit (53) extends to the outside of the front side of the collecting cover (52).

10. The multifunctional dredging equipment for municipal pipeline dredging according to claim 1, characterized in that: The mounting frame (2) comprises a base (21), a screw rod (22) and a nut seat (23); The base (21) is mounted on the side of the special mobile trolley (1), the screw rod (22) is vertically rotatably mounted on the base (21), and the nut seat (23) is thread-matched and sleeved on the screw rod (22); A pair of connecting arms (25) are fixed to the side of the nut seat (23), and the temporary storage tank (3) is fixed to the ends of the two connecting arms (25); A pair of vertically extending guide rods (24) are fixed on the base (21), and the nut seat (23) is slidably mounted on the two guide rods (24); A hand wheel (221) is mounted on the top of the screw rod (22).

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