A sewage cleaning device for urban drainage pipes

Abstract

The present invention discloses a sewage cleaning device for urban drainage pipes, which belongs to the technical field of sewage cleaning equipment for pipes. The structure thereof comprises a shuttle-shaped main body, an oblique telescopic component, a central positioning component and a plurality of sludge shovel cylinders. The shuttle-shaped main body can be inserted into the inner side of the drainage pipe and adapt to the bending structure in the drainage pipe. The central positioning component is arranged on the outer side of the middle part of the shuttle-shaped main body. The plurality of sludge shovel cylinders are symmetrically and slidably mounted on the outer sides of the shuttle-shaped main body. The oblique telescopic component is mounted inside the shuttle-shaped main body to drive the sludge shovel cylinders to slide. The present invention can drill into the deep inside of the drainage pipe, and while scraping the sludge on the inner wall of the drainage pipe, utilize the reaction force of the scraper to drive the device as a whole to crawl in the drainage pipe, effectively adapt to narrow or curved drainage pipes, and at the same time, collect the sludge scraped off, realize the multi-link continuous operation of equipment movement, sludge cleaning and sludge collection, and improve the cleaning performance of sludge in the deep part of the drainage pipe.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline cleaning equipment, in particular to a sewage cleaning device for urban drainage pipelines. Background Art

[0002] Regular cleaning of urban drainage pipes can remove accumulated silt, restore the original diameter and drainage capacity of the pipes, significantly improve the efficiency of urban drainage systems, and reduce the risk of urban flooding caused by poor drainage;

[0003] The existing patent document with application number CN202110284004.7 discloses a drainage pipe cleaning device and a cleaning method, which discloses a method of using a rotating flywheel device to scrape the inner wall of the drainage pipe to perform pipeline cleaning. Specifically: the device includes a frame, an action mechanism, a flywheel mechanism and a flushing mechanism, the action mechanism is arranged at the bottom of the frame, the flushing mechanism is arranged in the frame, the flywheel mechanism is arranged on the frame, the flywheel mechanism includes a rotating frame, a driving motor and a flywheel, the flywheel is arranged on the rotating frame, the driving motor is arranged on the frame, the rotating frame is arranged on the frame and is rotatably connected to the frame, the driving motor is connected to the rotating frame, and the driving motor drives the rotating frame to rotate; the action mechanism can realize the movement of the cleaning device in the drainage pipe, and the flywheel mechanism can remove foreign matter and dirt adhering to the drainage pipe;

[0004] However, when using the technical solution in the above-mentioned patent document, it is necessary to rely on the action mechanism to control the movement of the equipment in the drainage pipe, and the rotation of the wheels at the bottom of the action mechanism drives the movement of the entire equipment. Since the contact area between the wheels and the inner wall of the pipe is limited, especially when sticky sludge is attached to the inner wall of the pipe, it is difficult for the wheels to achieve stable fit; in addition, when the wheels encounter a hard sludge layer, it will cause severe vibration and displacement of the equipment, and in extreme cases may cause the equipment to tip over or roll. To avoid this situation, it is necessary to increase the weight of the equipment itself to increase friction resistance and stability; this will increase the burden on the power system and reduce the maneuverability of the equipment, and thus it will not be able to effectively adapt to narrow or curved drainage pipes, affecting the performance of the equipment in cleaning deep in the drainage pipe. Therefore, the present application provides a sewage cleaning device for urban drainage pipes. Summary of the invention

[0005] In order to solve the deficiencies in the above-mentioned prior art, the purpose of the present invention is to provide a sewage cleaning device for urban drainage pipes, which can drill into the deep inside of the drainage pipes, and while scraping the sludge on the inner wall of the drainage pipes, utilize the reaction force of the scraper to drive the device as a whole to crawl in the drainage pipes, so as to effectively adapt to narrow or curved drainage pipes. At the same time, the sludge scraped off is collected, so as to realize the multi-link continuous operation of equipment movement, sludge cleaning and sludge collection, and improve the cleaning performance of sludge deep in the drainage pipes.

[0006] The technical solution adopted by the present invention to solve the technical problem is:

[0007] Provided is a sewage cleaning device for urban drainage pipes, comprising a shuttle-shaped main body, an oblique telescopic component, a sludge shovel cylinder and a central positioning component.

[0008] The shuttle-shaped body can be inserted into the inner side of the drainage pipe and adapt to the bending structure in the drainage pipe. The shuttle-shaped body comprises an annular cylinder, and conical covers are fixedly installed on both sides of the annular cylinder. A rope connecting hook is fixedly installed on the end of the conical cover on one side, and an annular isolation cover I is fixedly installed on the inner side of the annular cylinder; the wider ends of the conical covers (23) on both sides of the annular cylinder (21) are fixedly installed with an isolation disk (22), and an annular isolation cover II is fixedly installed between the two isolation disks.

[0009] Wherein, the annular cylinder, the annular isolation cover I, the annular isolation cover II and the two isolation disks form a sludge storage space.

[0010] The central positioning component comprises a positioning ring fixedly mounted on the outer side of the middle of the annular cylinder, a plurality of slide cylinders fixedly mounted on the side of the positioning ring, a telescopic column slidably mounted in the slide cylinder, and the end of the telescopic column abuts against the inner wall of the drainage pipe.

[0011] The sludge shovel barrels are provided with multiple sludge shovel barrels, which are symmetrically slidably installed on both sides of the outside of the shuttle-shaped main body; the sludge shovel barrel includes a shovel plate with multiple shovel teeth at the end, and a flexible mud swallowing cover and a mud swallowing pipe are provided on the mud shovel plate. The mud swallowing pipe is connected to the sludge storage space through a sludge guide pipe with multiple one-way guide valves built in, and the sludge guide pipe is slidably connected to the sliding hole II on the side of the annular barrel.

[0012] The oblique telescopic component includes an oblique sliding column and a connecting handle rotatably mounted on the end of the oblique sliding column, the connecting handle is detachably fixedly connected to the mud shovel plate, and the oblique sliding column penetrates the isolation disk and is slidably connected to the sliding hole I on the annular cylinder.

[0013] Furthermore, the end of the mud shoveling plate extends toward the outer middle side of the annular cylinder, a pressure pad is provided on the side of the flexible mud swallowing cover away from the annular cylinder, and a scraping lip plate is provided on the end of the flexible mud swallowing cover close to the shovel teeth.

[0014] Furthermore, a torsion spring is installed between the oblique sliding column and the connecting handle.

[0015] Furthermore, a circular ring is fixedly installed on the outer side of the annular isolation cover I, and a plurality of convex pieces are fixedly installed on the outer side of the circular ring. An elastic drawstring is arranged on the side of the convex piece, and the other end of the elastic drawstring is connected to the outer side surface of the sludge guide pipe.

[0016] Furthermore, a compressed gas storage chamber is provided inside the telescopic column, and a spherical abutment joint is integrally formed at the end of the telescopic column.

[0017] In the present application, an optional technical solution for the sliding drive method of the oblique sliding column is: a telescopic driver I for driving the oblique sliding column to slide is installed in the conical cover.

[0018] In the present application, for the sliding drive method of the oblique sliding column, another optional technical solution is: a telescopic drive II is fixedly installed on the isolation disk, a synchronous control frame is fixedly installed on the movable end of the telescopic drive II, the oblique sliding column and the synchronous control frame are connected by a telescopic arm, and the telescopic drive II is located in the annular isolation cover II.

[0019] Furthermore, the telescopic arm includes a telescopic arm I, a telescopic arm II and a telescopic arm III which are nested and slidably connected in sequence, the telescopic arm I is fixedly connected to the oblique sliding column, and the telescopic arm III is slidably connected to the synchronous control frame. As the telescopic arm I, the telescopic arm II and the telescopic arm III are engaged and slid with each other, the connection performance between the oblique sliding column and the synchronous control frame is improved.

[0020] Further, an end portion of the sludge guiding pipe located at the bottom of the shuttle-shaped body extends toward an inner upper end of the sludge storage space.

[0021] Furthermore, a combined sleeve I is provided at the end of the inclined sliding column close to the connecting handle, a combined sleeve II is detachably fixedly installed on the combined sleeve I, the connecting handle is rotatably installed between the combined sleeve I and the combined sleeve II, and the two ends of the torsion spring are fixedly connected to the combined sleeve I and the connecting handle respectively.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The urban drainage pipe cleaning device of the example of the present invention, in the process of controlling the inclined sliding column to extend, firstly uses the shovel teeth to press and shovel the sludge attached to the inner wall of the drainage pipe to loosen it; then uses the scraper lip plate to scrape this part of the sludge, so that it enters between the shovel plate and the flexible mud swallowing cover for temporary storage and treatment; finally, as the shovel plate and the flexible mud swallowing cover gradually change from an inclined state to a horizontal state, the shovel plate and the flexible mud swallowing cover are pressed together. In this process, the opening positions of the shovel plate and the flexible mud swallowing cover are closed first, and then the remaining positions are completely abutted, and the sludge temporarily stored between the shovel plate and the flexible mud swallowing cover is squeezed out from the mud swallowing pipe on the side of the shovel plate, thereby implementing the continuous operation of sludge loosening, sludge scraping and sludge swallowing collection. Compared with the solution in the prior art that can only scrape the sludge, the present application collects the sludge adhered to the inner wall of the drainage pipe, which can effectively prevent the scraped sludge from re-attaching to the inner wall of the drainage pipe, and the overall use effect is good.

[0024] 2. In the urban drainage pipe cleaning device of the example of the present invention, as the oblique sliding column continues to extend, the mud shovel plate and the flexible mud swallowing cover gradually change from an inclined state to a horizontal state. In this process, since the pressure pad can fit tightly with the top of the inner wall of the drainage pipe, the reaction force generated by the simultaneous extension of multiple mud shovel cylinders on the same side of the annular cylinder is used to drive the entire device to crawl in the drainage pipe, thereby realizing multi-link continuous operations of equipment movement, sludge cleaning and sludge collection, and improving the cleaning performance of sludge deep in the drainage pipe.

[0025] 3. In the urban drainage pipe cleaning device of the example of the present invention, the shuttle-shaped main body is thick in the middle and pointed at both ends to ensure that the device as a whole can smoothly pass through the curved area inside the drainage pipe; in the process of the mud shovel plate and the flexible mud swallowing cover gradually changing from an inclined state to a horizontal state, the pressure pad gradually fits tightly against the top of the inner wall of the drainage pipe, and the reaction force generated by the simultaneous extension of multiple mud shovel cylinders on the same side of the annular cylinder is used to drive the overall movement of the device, and the central positioning component is used in combination to keep the middle of the equipment corresponding to the axis of the drainage pipe, so that the device as a whole can crawl stably in the drainage pipe, optimize the movement control method of the equipment, reduce the overall volume of the equipment, and have a good lightweight use effect, which is suitable for narrow and curved drainage pipes.

[0026] 4. In the urban drainage pipe cleaning device of the example of the present invention, the end of the telescopic column is integrally formed with a spherical abutment joint, and the spherical abutment joint is connected to the inner wall of the drainage pipe to increase the shaking movement range of the end position of the shuttle-shaped body, thereby increasing the movement smoothness of the shuttle-shaped body along the internal curved structure of the drainage pipe.

[0027] 5. In the urban drainage pipe cleaning device of the example of the present invention, a compressed gas storage chamber is arranged inside the telescopic column, and a spherical abutment joint is integrally formed at the end of the telescopic column. By injecting different volumes of inert gas into the compressed gas storage chamber, the supporting force of the telescopic column located at the bottom and side of the annular cylinder is increased, and the corresponding state between the middle part of the shuttle-shaped main body and the virtual axis of the drainage pipe is maintained, so that multiple sludge shovel barrels can perform balanced and stable sludge scraping and cleaning operations, thereby increasing the versatility of the shuttle-shaped main body when probing into drainage pipes with different inner diameters.

[0028] 6. In the urban drainage pipe cleaning device exemplified in the present invention, when the shuttle-shaped main body crawls in the drainage pipe, the telescopic columns at various positions on the side of the positioning ring can adaptively extend under the action of gas pressure, thereby better coping with the inner wall unevenness caused by corrosion and the like of the drainage pipe due to long-term use, as well as the internal curved structure of the drainage pipe. Compared with the traditional method of driving the device to move by rotating the wheel, the above-mentioned scheme of the present application can better fit the inner wall of the drainage pipe and increase the movement control efficiency of the device inside the drainage pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0030] Figure 1 A schematic diagram of the structure of a drainage pipe and a shuttle-shaped body provided in an embodiment of the present invention;

[0031] Figure 2 A schematic diagram of the overall structure of the urban drainage pipe cleaning device provided by an embodiment of the present invention;

[0032] Figure 3 A cross-sectional view of the entire urban drainage pipe cleaning device provided by an embodiment of the present invention;

[0033] Figure 4 An exploded view of the structure of the annular cylinder, the isolation disk and the conical cover provided in an embodiment of the present invention;

[0034] Figure 5 A schematic diagram of the structure of a synchronous control frame, an oblique sliding column and a connecting handle provided in an embodiment of the present invention;

[0035] Figure 6 A schematic diagram of the structure of the oblique sliding column, the mud shoveling plate and the flexible mud swallowing cover provided in an embodiment of the present invention;

[0036] Figure 7 A schematic diagram of the structure of a dirt scraping lip plate and a pressure pad provided in an embodiment of the present invention;

[0037] Figure 8 A schematic diagram of the structure of the combined shaft sleeve I, the combined shaft sleeve II and the limit edge provided in an embodiment of the present invention;

[0038] Fig. 9 A schematic diagram of the structure of a ring, a protruding piece, an elastic pull rope and a sludge guide pipe provided in an embodiment of the present invention;

[0039] Fig.10 A schematic diagram of the structure of a sludge guide pipe and a one-way sludge guide valve provided in an embodiment of the present invention;

[0040] Fig.11 An exploded view of the structures of telescopic arms I, II and III provided in an embodiment of the present invention;

[0041] Fig.12 This is a schematic structural diagram of a slide cylinder, a telescopic column and a spherical abutment joint provided in an embodiment of the present invention.

[0042] In the figure: 1 drainage pipe, 2 shuttle body, 21 annular cylinder, 211 sliding hole I, 212 sliding hole II, 22 isolation plate, 221 insert cylinder, 222 notch, 23 conical cover, 24 rope connecting hook, 25 annular isolation cover I, 251 ring, 252 convex piece, 253 elastic pull rope, 26 annular isolation cover II, 3 oblique telescopic component, 31 synchronous control frame, 32 telescopic drive II, 33 oblique sliding column, 331 combined shaft sleeve I, 33 2 combined shaft sleeve II, 333 limiting edge, 334 torsion spring, 34 telescopic arm I, 35 telescopic arm II, 36 telescopic arm III, 37 connecting handle, 4 sludge shovel cylinder, 41 shovel plate, 411 shovel tooth, 412 inclined plane, 42 flexible mud swallowing cover, 421 scraper lip plate, 43 pressure pad, 44 mud swallowing pipe, 45 sludge guide pipe, 46 one-way guide valve, 5 center positioning component, 51 positioning ring, 52 sliding cylinder, 53 telescopic column, 54 spherical butt joint. DETAILED DESCRIPTION

[0043] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0044] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0045] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0046] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0047] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings.

[0049] Embodiment 1:

[0050] like Figure 1 , Figure 2 and Figure 3 As shown, this embodiment provides a sewage cleaning device for urban drainage pipes, including a shuttle-shaped main body 2, an oblique telescopic component 3, a sludge shovel cylinder 4 and a central positioning component 5.

[0051] like Figure 2 and Figure 4 As shown, the shuttle-shaped body 2 can be inserted into the inner side of the drainage pipe 1 and adapt to the bending structure in the drainage pipe 1. The shuttle-shaped body 2 includes an annular cylinder 21, and conical covers 23 are fixedly installed on both sides of the annular cylinder 21. A rope connecting hook 24 is fixedly installed at the end of the conical cover 23 on one side, and a rope is connected to the rope connecting hook 24 so that the device can smoothly pass through the internal bending structure of the drainage pipe 1 and the device can be quickly retracted. An annular isolation cover I 25 is fixedly installed on the inner side of the annular cylinder 21; an isolation disk (22) is fixedly installed on the wider ends of the conical covers (23) on both sides of the annular cylinder (21), and an annular isolation cover II 26 is fixedly installed between the two isolation disks 22.

[0052] The annular cylinder 21 , the annular isolation cover I 25 , the annular isolation cover II 26 and the two isolation disks 22 form a sludge storage space.

[0053] like Figure 2 , Figure 3 and Fig.12 As shown, the center positioning component 5 includes a positioning ring 51 fixedly installed on the outer side of the middle part of the annular cylinder 21, and a plurality of slide cylinders 52 are fixedly installed on the side of the positioning ring 51. A telescopic column 53 is slidably installed in the slide cylinder 52, and the end of the telescopic column 53 abuts against the inner wall of the drainage pipe 1.

[0054] like Figure 2 , Figure 5 , Figure 7 and Fig. 9 As shown, the sludge shovel barrels 4 are provided in plurality, and the plurality of sludge shovel barrels 4 are symmetrically slidably mounted on both sides of the outside of the shuttle-shaped body 2, and the plurality of sludge shovel barrels 4 on one side are controlled to slide synchronously, so as to control the shuttle-shaped body 2 to continuously move in one direction in the drainage pipe 1;

[0055] The sludge shovel cylinder 4 includes a shovel plate 41 with a plurality of shovel teeth 411 at the end, a slope 412 is provided at the bottom of the shovel teeth 411, the end of the shovel plate 41 extends toward the outer middle side of the annular cylinder 21, and a flexible mud swallowing cover 42 and a mud swallowing pipe 44 are provided on the shovel plate 41. The mud swallowing pipe 44 is connected to the sludge storage space through a sludge guide pipe 45 with a plurality of one-way guide valves 46 built in. Fig.10 As shown, between the inner side of the annular cylinder 21 and the annular isolation cover Ⅰ25, the sludge guide pipe 45 placed in a zigzag state is slidably connected to the sliding hole Ⅱ212 on the side of the annular cylinder 21.

[0056] The one-way dirt guide valve 46 is made of elastic material, such as rubber, and its structure is as follows: Fig.10 As shown, the whole is conical, and a normally closed flow hole is provided in the middle, which only allows the sludge to flow in one direction inside the sludge guide pipe 45, thereby effectively preventing the collected sludge from leaking.

[0057] The end of the sludge guide pipe 45 located at the bottom of the shuttle-shaped body 2 extends toward the inner upper end of the sludge storage space to prevent the sludge entering the sludge storage space from flowing back from the sludge guide pipe 45 located at the bottom.

[0058] like Figure 3 , Figure 5 , Figure 7 , Fig. 9 and Fig.11 As shown, the oblique telescopic component 3 includes an oblique sliding column 33, and a connecting handle 37 rotatably installed at the end of the oblique sliding column 33. A torsion spring 334 is fixedly installed between the oblique sliding column 33 and the connecting handle 37, so that the connecting handle 37 can automatically reset after rotating relative to the oblique sliding column 33. The connecting handle 37 is detachably fixedly connected to the mud shovel plate 41, and the oblique sliding column 33 passes through the isolation disk 22 and is slidably connected to the sliding hole Ⅰ211 on the annular cylinder 21.

[0059] In this embodiment, for the sliding drive mode of the oblique sliding column 33, a telescopic driver I for driving the oblique sliding column 33 to slide is installed in the conical cover 23. The telescopic driver I is started to drive the oblique sliding column 33 at the corresponding position to slide. In this application, the telescopic driver can be a linear electric cylinder or a hydraulic cylinder.

[0060] In order to ensure that the sludge shovel barrel 4 can scrape the sludge adhering to the inner wall of the drainage pipe 1, Figure 6-7As shown, a pressure pad 43 is provided on the side of the flexible mud swallowing cover 42 away from the annular cylinder 21, and a dirt scraping lip plate 421 is provided on the end of the flexible mud swallowing cover 42 close to the shovel teeth 411. The dirt scraping lip plate 421 can fully abut against the inner wall of the drainage pipe 1 to increase the dirt scraping effect of the flexible mud swallowing cover 42;

[0061] Among them, the thickness of the side of the pressure pad 43 close to the shovel teeth 411 is larger, and the thickness of the side away from the shovel teeth 411 is smaller. When the pressure pad 43 abuts against the inner wall of the drainage pipe 1, the end of the pressure pad 43 with a larger thickness preferentially contacts the inner wall of the drainage pipe 1, and after the mud shoveling plate 41 and the flexible mud swallowing cover 42 are pressed together, at the position where the pressure pad 43 is thicker, the mud shoveling plate 41 and the flexible mud swallowing cover 42 are pressed more tightly, thereby enhancing the swallowing and transportation effect of the sludge.

[0062] The specific operation steps of using the urban drainage pipe cleaning device of the present application to clean the drainage pipe are as follows:

[0063] 1. Preparation before operation: adjust the positions of the multiple telescopic columns 53 on the periphery of the positioning ring 51 in the corresponding slide tubes 52 so that the central positioning component 5 supports the entire device at the center of the drainage pipe 1;

[0064] 2. Sludge loosening treatment: A plurality of oblique sliding posts 33 inside the conical cover 23 on one side are controlled to extend, and the shovel teeth 411 abut against the inner wall of the drainage pipe 1, and the sludge attached to the inner wall of the drainage pipe 1 is pressed and shoveled to loosen the sludge;

[0065] 3. Sludge scraping treatment: As the oblique sliding column 33 continues to extend, the scraping lip plate 421 scrapes the loosened sludge, and the scraped sludge enters between the shoveling plate 41 and the flexible sludge swallowing cover 42 for temporary sludge storage treatment;

[0066] 4. Sludge swallowing and collection processing: When the sludge shovel tube 4 is extended to the limit position, the inclined sliding column 33 is continued to be controlled to extend, so that the connecting handle 37 is rotated relative to the inclined sliding column 33, and the shovel plate 41 and the flexible mud swallowing cover 42 gradually change from an inclined state to a horizontal state, and the torsion spring 334 accumulates force and is compressed, and the shovel plate 41 and the flexible mud swallowing cover 42 are pressed together, and the pressure pad 43 is tightly fitted with the inner wall top of the drainage pipe 1, so that the opening position of the shovel plate 41 and the flexible mud swallowing cover 42 is closed first, and then completely abutted, so that this part of the sludge is squeezed out from the mud swallowing tube 44 on the side of the shovel plate 41, and under the action of the sludge guide tube 45, the collected sludge is squeezed into the sludge storage space to complete the sludge swallowing and collection operation.

[0067] V. Preparation for the next cycle of cleaning: During the retraction of the oblique sliding column 33, the torsion spring 334 relaxes and resets, the mud shoveling plate 41 and the flexible mud swallowing cover 42 change from a horizontal state to an inclined state, and the mud shoveling plate 41 and the flexible mud swallowing cover 42 reopen.

[0068] In the above step 2, when it is necessary to move the shuttle-shaped body 2 toward the depth of the drainage pipe 1, the multiple inclined sliding columns 33 away from one side are controlled to slide synchronously, and the corresponding sludge shovel tube 4 is controlled to extend; when it is necessary to move the shuttle-shaped body 2 outward from the depth of the drainage pipe 1, the multiple inclined sliding columns 33 on the other side are controlled to slide synchronously.

[0069] In the above step four, as the oblique sliding column 33 continues to extend, the mud shovel plate 41 and the flexible mud swallowing cover 42 gradually change from an inclined state to a horizontal state. In this process, since the pressure pad 43 can fit tightly with the top of the inner wall of the drainage pipe 1, the reaction force generated by the simultaneous extension of multiple mud shovel cylinders 4 on the same side of the annular cylinder 21 is used to drive the entire device to crawl in the drainage pipe to adapt to narrow or curved drainage pipes 1. The center positioning component 5 is used to keep the middle part of the equipment corresponding to the axis of the drainage pipe 1, so as to realize the multi-link continuous operation of equipment movement, sludge cleaning and sludge collection, and improve the cleaning performance of sludge deep in the drainage pipe.

[0070] Embodiment 2:

[0071] The features of this embodiment that are the same as those of the first embodiment are not described in detail. The difference between this embodiment and the first embodiment is that: Figure 3 , Figure 5 , Figure 6 and Fig. 9 As shown, in this embodiment, a telescopic driver II 32 is fixedly installed on the isolation disk 22, a synchronous control frame 31 is fixedly installed on the movable end of the telescopic driver II 32, the oblique sliding column 33 is connected to the synchronous control frame 31 through a telescopic arm, and the telescopic driver II 32 is located in the annular isolation cover II 26; the telescopic driver II 32 is started to control the horizontal movement of the synchronous control frame 31, and as the telescopic arm moves horizontally in the synchronous control frame 31, multiple oblique sliding columns 33 are driven to be synchronously extended and retracted to implement mud shoveling operations at various angles on the outside of the shuttle-shaped main body 2.

[0072] Compared with the solution in the first embodiment, the number of driving components used in this embodiment is reduced, and the equipment is lightweight and has a good use effect.

[0073] In order to improve the connection performance between the oblique sliding column 33 and the synchronous control frame 31, as Fig.11As shown, the telescopic arm includes a telescopic arm Ⅰ34, a telescopic arm Ⅱ35 and a telescopic arm Ⅲ36 which are nested and slidably connected in sequence, the telescopic arm Ⅰ34 is fixedly connected to the oblique sliding column 33, and the telescopic arm Ⅲ36 is slidably connected to the synchronous control frame 31. The telescopic arm Ⅰ34, the telescopic arm Ⅱ35 and the telescopic arm Ⅲ36 are engaged and slidably engaged with each other to increase the utilization rate of the internal space of the conical cover 23 and the sliding range of the oblique sliding column 33.

[0074] Embodiment three:

[0075] The features of this embodiment that are the same as those of the first embodiment are not described in detail. The difference between this embodiment and the first embodiment is that: Figure 4 As shown, in this embodiment, a plurality of inserting tubes 221 for slidingly guiding the oblique sliding posts 33 are fixedly mounted on the isolation disk 22, and slots 222 for inserting the telescopic arms are provided on the inserting tubes 221.

[0076] The insert 221 is used to increase the contact area between the inclined sliding column 33 and the isolation disk 22, so as to cope with the reaction force exerted by the more stubborn sludge attached to the inner wall of the drainage pipe 1 on the sludge shovel cylinder 4, ensure the sliding stability of the inclined sliding column 33, and increase the anti-interference characteristics of the equipment operation.

[0077] Embodiment 4:

[0078] The features of this embodiment that are the same as those of the first embodiment are not described in detail. The difference between this embodiment and the first embodiment is that: Figure 8 As shown, in this embodiment, a combined shaft sleeve I331 is provided at the end of the inclined sliding column 33 near the connecting handle 37, and a combined shaft sleeve II332 is detachably fixedly installed on the combined shaft sleeve I331, and the connecting handle 37 is rotatably installed between the combined shaft sleeve I331 and the combined shaft sleeve II332, and the two ends of the torsion spring 334 are fixedly connected to the combined shaft sleeve I331 and the connecting handle 37 respectively.

[0079] By utilizing the easy-to-disassemble design of the combined shaft sleeve I 331 and the combined shaft sleeve II 332, the sludge shovel barrel 4 can be easily replaced and the equipment can be quickly maintained.

[0080] The combined sleeve II 332 is provided with a limit edge 333 for limiting the rotation angle of the connecting handle 37, maintaining a stable docking angle between the scraping lip 421 and the inner wall of the drainage pipe 1, and ensuring a stable process of the sludge shovel barrel 4 for stable sludge swallowing and collection.

[0081] Embodiment five:

[0082] The features of this embodiment that are the same as those of the first embodiment are not described in detail. The difference between this embodiment and the first embodiment is that: Figure 2 and Figure 3As shown, in the present embodiment, a spherical abutment joint 54 is integrally formed at the end of the telescopic column 53; the reaction force between the sludge shovel cylinder 4 and the inner wall of the drainage pipe 1 is utilized to drive the device as a whole to crawl in the drainage pipe. Since the spherical abutment joint 54 abuts against the inner wall of the drainage pipe 1, the smoothness of movement of the shuttle-shaped body 2 along the internal curved structure of the drainage pipe 1 is increased.

[0083] In order to specifically adjust the movement resistance of the telescopic columns 53 at various positions on the circumference of the annular cylinder 21, as shown in FIG. Fig.12 As shown, a compressed gas storage chamber is provided inside the telescopic column 53, and different volumes of inert gas are injected into the compressed gas storage chamber to increase the supporting force of the telescopic column 53 located at the bottom and side of the annular cylinder 21, so that when the shuttle-shaped body 2 is inserted into the drainage pipes 1 with different inner diameters, the middle part of the shuttle-shaped body 2 is kept in a corresponding state with the virtual axis of the drainage pipe 1, so that multiple sludge shovel cylinders 4 can perform balanced and stable sludge scraping and cleaning operations;

[0084] When the shuttle-shaped body 2 crawls and moves in the drainage pipe 1, the telescopic columns 53 at various positions on the side of the positioning ring 51 can adaptively extend under the action of gas pressure, thereby better coping with the uneven inner wall of the drainage pipe 1 caused by corrosion and the like due to long-term use, as well as the curved structure inside the drainage pipe 1.

[0085] Embodiment six:

[0086] The features of this embodiment that are the same as those of the first embodiment are not described in detail. The difference between this embodiment and the first embodiment is that: Fig. 9 As shown, in this embodiment, a circular ring 251 is fixedly installed on the outer side of the annular isolation cover I25, and a plurality of protrusions 252 are fixedly installed on the outer side of the circular ring 251. An elastic pull rope 253 is provided on the side of the protrusion 252, and the other end of the elastic pull rope 253 is connected to the outer side surface of the sludge guide pipe 45.

[0087] The sludge guide tube 45 is pulled by the elastic pull rope 253, so that when the oblique sliding column 33 is retracted into the conical cover 23, the sludge guide tube 45 can also be synchronously retracted to between the inner side of the annular cylinder 21 and the outer side of the annular isolation cover Ⅰ25, so as to avoid the sludge guide tube 45 being compressed and deformed on the outer side of the annular cylinder 21, reduce the adverse effects on the sludge collection and guidance, and ensure the smoothness of the multi-link continuous operation of equipment movement, sludge cleaning and sludge collection.

[0088] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

[0089] Except for the technical features described in the specification, the remaining technical features are known technologies to those skilled in the art. In order to highlight the innovative features of the present invention, the remaining technical features will not be described here in detail.

Claims

1. A sewage cleaning device for urban drainage pipes, characterized in that: The invention comprises a shuttle-shaped body (2) capable of being inserted into a drainage pipe (1), the shuttle-shaped body (2) comprising an annular cylinder (21), and conical covers (23) fixedly mounted on both sides of the annular cylinder (21), a rope connecting hook (24) fixedly mounted on the end of the conical cover (23) on one side, and an annular isolation cover I (25) fixedly mounted on the inner side of the annular cylinder (21); an isolation disk (22) is fixedly mounted on the wider ends of the conical covers (23) on both sides of the annular cylinder (21), and an annular isolation cover II (26) is fixedly mounted between the two isolation disks (22); a sludge storage space is formed between the annular cylinder (21), the annular isolation cover I (25), the annular isolation cover II (26) and the two isolation disks (22), and further comprises: A central positioning component (5) is fixedly mounted on the middle part of the outer side of the shuttle-shaped main body (2); the central positioning component (5) comprises a positioning ring (51) fixedly mounted on the outer side of the middle part of the annular cylinder (21); a plurality of slide cylinders (52) are fixedly mounted on the side of the positioning ring (51); a telescopic column (53) is slidably mounted inside the slide cylinder (52); and an end of the telescopic column (53) abuts against the inner wall of the drainage pipe (1); A plurality of sludge shovel barrels (4) are symmetrically and slidably mounted on both sides of the outside of the shuttle-shaped main body (2); the sludge shovel barrel (4) comprises a shovel plate (41) with a plurality of shovel teeth (411) arranged at the end thereof, a flexible sludge swallowing cover (42) and a sludge swallowing pipe (44) being arranged on the shovel plate (41), the sludge swallowing pipe (44) being connected to the sludge storage space via a sludge guide pipe (45) having a plurality of one-way sludge guide valves (46) built therein, and the sludge guide pipe (45) being slidably connected to a sliding hole II (212) on the side of the annular barrel (21); The end of the mud shoveling plate (41) extends toward the outer middle side of the annular cylinder (21); a pressure pad (43) is provided on the side of the flexible mud swallowing cover (42) away from the annular cylinder (21); and a dirt scraping lip plate (421) is provided on the end of the flexible mud swallowing cover (42) close to the shovel teeth (411); An oblique telescopic component (3) for driving the sludge shovel barrel (4) to slide on the shuttle-shaped body (2); the oblique telescopic component (3) comprises an oblique sliding column (33) and a connecting handle (37) rotatably mounted on the end of the oblique sliding column (33); the connecting handle (37) is detachably fixedly connected to the shovel plate (41); the oblique sliding column (33) passes through the isolation disk (22) and is slidably connected to the sliding hole I (211) on the annular cylinder (21); A torsion spring (334) is installed between the oblique sliding column (33) and the connecting handle (37); During the extension of the oblique sliding column (33), the mud shoveling plate (41) and the flexible mud swallowing cover (42) gradually change from an inclined state to a horizontal state, the torsion spring (334) accumulates force and is compressed, the mud shoveling plate (41) and the flexible mud swallowing cover (42) are pressed together, and the pressure pad (43) is tightly fitted to the top of the inner wall of the drainage pipe (1); During the retraction of the oblique sliding column (33), the torsion spring (334) relaxes and resets, the mud shoveling plate (41) and the flexible mud swallowing cover (42) change from a horizontal state to an inclined state, and the mud shoveling plate (41) and the flexible mud swallowing cover (42) reopen.

2. The urban drainage pipe cleaning device according to claim 1, characterized in that: A circular ring (251) is fixedly mounted on the outer side of the annular isolation cover I (25), a plurality of protruding pieces (252) are fixedly mounted on the outer side of the circular ring (251), an elastic pull rope (253) is arranged on the side of the protruding piece (252), and the other end of the elastic pull rope (253) is connected to the outer side surface of the sludge guide pipe (45).

3. The urban drainage pipe cleaning device according to claim 1, characterized in that: A compressed gas storage chamber is provided inside the telescopic column (53), and a spherical abutment joint (54) is integrally formed at the end of the telescopic column (53).

4. The urban drainage pipe cleaning device according to claim 1, characterized in that: A telescopic driver I for driving the oblique sliding column (33) to slide is installed in the conical cover (23).

5. The urban drainage pipe cleaning device according to claim 1, characterized in that: A telescopic driver II (32) is fixedly mounted on the isolation disk (22), a synchronous control frame (31) is fixedly mounted on the movable end of the telescopic driver II (32), the oblique sliding column (33) and the synchronous control frame (31) are connected via a telescopic arm, and the telescopic driver II (32) is located in the annular isolation cover II (26).

6. The urban drainage pipe cleaning device according to claim 5, characterized in that: The telescopic arm comprises a telescopic arm I (34), a telescopic arm II (35) and a telescopic arm III (36) which are nested in sequence and slidably connected together, the telescopic arm I (34) is fixedly connected to the oblique sliding column (33), and the telescopic arm III (36) is slidably connected to the synchronous control frame (31).

7. The urban drainage pipe cleaning device according to claim 1, characterized in that: The end of the sludge guide pipe (45) located at the bottom of the shuttle-shaped body (2) extends toward the inner upper end of the sludge storage space.

8. The urban drainage pipe cleaning device according to claim 1, characterized in that: The end of the oblique sliding column (33) close to the connecting handle (37) is provided with a combined shaft sleeve I (331), and a combined shaft sleeve II (332) is detachably fixedly mounted on the combined shaft sleeve I (331). The connecting handle (37) is rotatably mounted between the combined shaft sleeve I (331) and the combined shaft sleeve II (332), and the two ends of the torsion spring (334) are respectively fixedly connected to the combined shaft sleeve I (331) and the connecting handle (37).

9. The urban drainage pipe cleaning device according to claim 8, characterized in that: The combined shaft sleeve II (332) is provided with a limit edge (333) for limiting the rotation angle of the connecting handle (37).

10. The urban drainage pipe cleaning device according to claim 5, characterized in that: A plurality of inserting sleeves (221) for slidingly guiding the oblique sliding columns (33) are fixedly mounted on the isolation disc (22), and notches (222) for inserting telescopic arms are provided on the inserting sleeves (221).

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