Dredging equipment for blow-off pipeline

Abstract

The invention relates to the technical field of desilting equipment, and provides sewage pipeline desilting equipment which comprises a positioning unit used for centering in a pipeline and providing support; the driving unit is arranged on the positioning unit, and the driving unit comprises a plurality of transmission assemblies which are arranged in the circumferential direction and can be expanded and contracted in the radial direction; the clamping unit comprises a plurality of clamping assemblies arranged in the circumferential direction, and the clamping assemblies are connected with the transmission assemblies in a one-to-one correspondence mode; wherein the driving unit is configured to be capable of driving all the transmission assemblies to synchronously expand or contract in the radial direction so as to drive all the clamping assemblies to synchronously move in the radial direction, so that the clamping assemblies can grab the adhesion on the whole circumference of the inner wall of the pipeline at the same time and strip the adhesion when the equipment is axially pulled.

Description

Technical Field

[0001] This invention relates to the field of dredging equipment technology, specifically to a sewage pipeline dredging equipment. Background Technology

[0002] Currently, commonly used pipeline dredging technologies in the industry mainly include high-pressure water jet flushing and mechanical winch dredging. High-pressure water jet technology is highly effective for loose deposits and soft blockages, but for strongly adhered materials, it often requires extremely high water pressure and consumes a lot of energy, resulting in low cleaning efficiency and possibly failing to completely remove the blockage. Existing mechanical winch technology relies on the rotating cutting force of drill bits or scrapers to break and crush the blockage into small pieces before allowing the fluid to carry it out. This is a break-and-progressive dredging method, with the force concentrated in axial drilling, which is not effective for evenly distributed circumferentially adhered materials. Therefore, we propose a sewage pipeline dredging device. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the present invention provides a sewage pipe dredging device that overcomes the shortcomings of the prior art, has a reasonable design and compact structure, and solves the problems mentioned in the background art. To achieve the above objectives, the present invention provides the following technical solution: A sewage pipe dredging device, comprising: Positioning unit, used for centering and providing support within the pipe; A drive unit is mounted on the positioning unit, and the drive unit includes multiple radially expandable and retractable transmission components arranged circumferentially. The clamping unit includes multiple clamping components arranged circumferentially, and the clamping components are connected to the transmission components one by one. The drive unit is configured to drive all transmission components to expand or contract radially in sync, thereby causing all clamping components to move radially in sync, so that the clamping components can simultaneously grasp the adhesive on the entire circumference of the inner wall of the pipe and peel it off when the device is pulled axially.

[0004] Preferably, the positioning unit includes a housing, a support plate, and multiple connecting rods connecting the housing and the support plate, wherein the housing is coaxially arranged with the support plate via the connecting rods.

[0005] Preferably, the transmission assembly includes a slide rail, a driven rod, a passive rod, and a driving rod; The slide rail and the connecting rod slide together. One end of the driven rod is hinged to the slide rail, and the other end is hinged to one end of the passive rod; The other end of the passive rod is hinged to the support plate; One end of the active rod is hinged to the middle of the passive rod.

[0006] Preferably, the drive unit further includes a drive disk and a drive member. The drive disk is slidably disposed on the axis of the positioning unit, the other end of the drive rod is hinged to the drive disk, and the drive member is used to drive the drive disk to reciprocate along the axial direction.

[0007] Preferably, the driving component is a fixedly mounted electric cylinder.

[0008] Preferably, the clamping assembly includes a hinge shaft, a hinge rod, a clamping rod, and a clamping plate; The hinge shaft is connected to the end of the slide rail; The middle part of the hinge rod is hinged to the hinge axis; One end of the clamping rod is hinged to the end of the hinge rod, and the other end is hinged to the lug set on the housing; The clamping plate is mounted on the clamping rod.

[0009] Preferably, a soil-breaking cone for breaking ground and centering is provided on the end face of the support plate away from the shell.

[0010] Preferably, the connecting rod has a groove that runs along its length, and the slide rail of the transmission component slides in conjunction with the groove.

[0011] Preferably, the housing has multiple through slots circumferentially for the transmission components to pass through.

[0012] This invention provides a sewage pipe dredging device. It has the following beneficial effects: This equipment, through multiple clamping units evenly arranged circumferentially, can simultaneously grab the adhesive material on the entire circumference of the inner wall of the pipe, and use strong axial tensile force to peel it off from the pipe wall as a whole or in large pieces. This overcomes the shortcomings of concentrated force and uneven cleaning of existing rotary drill bits, and achieves thorough removal of strong adhesive materials, significantly improving dredging efficiency.

[0013] The contact between the clamping plate and the pipe wall is surface contact rather than point or line contact, and a radially uniform clamping force and an axial peeling force are applied, which avoids the scratches or cutting damage that the rotating drill bit may cause to the inner wall of the pipe, making it safer and more reliable. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 For the present invention Figure 1 Rear view diagram; Figure 3 For the present invention Figure 1 A schematic diagram of the positioning unit; Figure 4 For the present invention Figure 3 Side view of part of the structure; Figure 5 For the present invention Figure 4 A three-dimensional schematic diagram; Figure 6 For the present invention Figure 1 A partial schematic diagram of the positioning unit; Figure 7 For the present invention Figure 6 Rear view diagram; Figure 8 For the present invention Figure 1 A schematic diagram of the clamping unit.

[0015] In the diagram: 1. Positioning unit; 11. Housing; 12. Connecting rod; 13. Through groove; 14. Ear seat; 15. Support plate; 16. Transmission rod; 17. Ground-breaking cone; 2. Drive unit; 21. Slide rail; 22. Hinge seat; 23. Driven rod; 24. Passive rod; 25. Active rod; 26. Drive plate; 3. Clamping unit; 31. Hinge shaft; 32. Hinge rod; 33. Clamping rod; 34. Clamping plate. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, what is described is only a part of this invention, not all of it. All other works obtained by those skilled in the art based on this invention without inventive effort are within the scope of protection of this invention.

[0017] See attached document Figures 1-8 A sewage pipe dredging device, the positioning unit 1 includes a support plate 15 coaxially connected to the housing 11 by a plurality of connecting rods 12, and the housing 11 is divided into a plurality of flow channels for sewage to pass through. A plurality of lugs 14 located between the connecting rods 12 are provided on the outer side wall of the housing 11, and a sliding groove is provided on each of the connecting rods 12 along its length direction. A soil breaking cone 17 is connected to one end face of the support plate 15, and a transmission rod 16 is axially connected to the other end face. It also includes a drive unit 2, which includes a slide rail 21 that slides along a slide groove. A driven rod 23 is hinged to the slide rail 21, allowing the driven rod 23 to rotate relative to the slide rail 21. The other end of the driven rod 23 is hinged to one end of a passive rod 24, and the other end of the passive rod 24 is movably connected to a support plate 15 by a hinge, thereby fixing one end of the linkage structure. The middle part of the passive rod 24 in the length direction is movably connected to one end of an active rod 25 by a hinge. The other end of the active rod 25 is hinged to a drive disc 26 that is slidably sleeved on a transmission rod 16. The drive disc 26 can be driven by a pair of electric cylinders that are fixedly connected to the transmission rod 16 and move synchronously. (Not shown in the diagram) The electric cylinder pushes the drive plate 26, which in turn extends the passive rod 24 to the outside of the support plate 15 via the active rod 25. This controls the driven rod 23 to push the slide rail 21 through the positioning unit 1 and extend it to the outside of the positioning unit 1. Conversely, the electric cylinder pulls the drive plate 26, which in turn causes the slide rail 21 to retract toward the support plate 15.

[0018] It also includes a clamping unit 3, which includes a hinge shaft 31 fixed to the moving end of the slide rail 21; a pair of hinge rods 32 are hinged on the hinge shaft 31, and clamping rods 33 are respectively hinged to both ends of the hinge rods 32; one end of the clamping rod 33 is hinged to the ear seat 14, and the other end is provided with a clamping plate 34 along the length direction; the clamping plate 34 extends away from the housing 11 and can abut against the adjacent clamping plate 34 when unfolded, together forming a clamping structure.

[0019] The positioning unit 1 has multiple through slots 13 corresponding to the connecting rod 12 in the circumference. The through slots 13 are rectangular and are used for the slide rail 21, hinge seat 22 and driven rod 23 to pass through.

[0020] A hinge seat 22 is fixedly hinged on the slide rail 21. A hinge seat 22 corresponding to the number of connecting rods 12 is provided around the support plate 15 and the drive plate 26 for hinged engagement with the driven rod 23, the passive rod 24 and the driving rod 25.

[0021] Working Principle: This equipment is preferably used in conjunction with an endoscope and an external propulsion device. During operation, the external propulsion device sends the equipment into the sewage pipe. The soil-breaking cone 17 at the front end of the positioning unit 1 breaks through the soil and centers the equipment. With the help of the endoscope, it ensures that the equipment accurately reaches the target location to be cleaned. Subsequently, the electric cylinder is activated, pushing the drive disc 26 to move along the transmission rod 16. The drive disc 26 pulls the middle of the passive rod 24 through the active rod 25, forcing the passive rod 24 to unfold outward with its hinge point with the support disc 15 as the axis. This, in turn, pushes the driven rod 23 and the slide rail 21 hinged to it to move along the groove of the connecting rod 12 towards the inner wall of the pipe. The unfolding movement of the slide rail 21 is transmitted to the clamping rod 33 through the hinge shaft 31 and the hinge rod 32, ultimately causing all the circumferentially arranged clamping plates 34 to expand radially synchronously until they press against the inner wall of the pipe, forming a uniform circumferential clamp and firmly gripping the adhesive on the inner wall of the pipe. At this point, the external propulsion device applies an axial pull force, and the entire device applies a powerful axial pull force directly to the gripped adhesive, peeling it off from the pipe wall in whole or in large pieces. By repeating the above process of opening, clamping, and pulling back, the thorough cleaning of all adhesive on the circumference of the entire pipe wall can be gradually completed.

[0022] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0023] The above description is only used to illustrate the technical solutions of the present invention, and is not intended to limit them. Although the present invention has been described in detail with reference to the foregoing, those skilled in the art should understand that modifications can still be made to the foregoing technical solutions, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A sewage pipe dredging device, characterized in that, include: Positioning unit (1) is used for centering and providing support within the pipe; A drive unit (2) is disposed on the positioning unit (1), and the drive unit (2) includes a plurality of radially expandable and retractable transmission components arranged circumferentially; The clamping unit (3) includes a plurality of clamping components arranged circumferentially, and the clamping components are connected to the transmission components one by one; The drive unit (2) is configured to drive all the transmission components to expand or contract radially in sync, thereby driving all the clamping components to move radially in sync, so that the clamping components can simultaneously grasp the adhesive on the entire circumference of the inner wall of the pipe and peel it off when the device is pulled axially.

2. The sewage pipe dredging equipment according to claim 1, characterized in that: The positioning unit (1) includes a housing (11), a support plate (15), and a plurality of connecting rods (12) connecting the housing (11) and the support plate (15). The housing (11) is coaxially arranged with the support plate (15) through the connecting rods (12).

3. The sewage pipe dredging equipment according to claim 2, characterized in that: The transmission assembly includes a slide rail (21), a driven rod (23), a passive rod (24), and a driving rod (25). The slide rail (21) is slidably engaged with the connecting rod (12); One end of the driven rod (23) is hinged to the slide rail (21), and the other end is hinged to one end of the passive rod (24); The other end of the passive rod (24) is hinged to the support plate (15); One end of the active rod (25) is hinged to the middle of the passive rod (24).

4. The sewage pipe dredging equipment according to claim 3, characterized in that: The drive unit (2) further includes a drive disk (26) and a drive member. The drive disk (26) is slidably disposed on the axis of the positioning unit (1). The other end of the active rod (25) is hinged to the drive disk (26). The drive member is used to drive the drive disk (26) to reciprocate along the axial direction.

5. The sewage pipe dredging equipment according to claim 4, characterized in that: The driving component is a fixedly installed electric cylinder.

6. The sewage pipe dredging equipment according to claim 3, characterized in that: The clamping assembly includes a hinge shaft (31), a hinge rod (32), a clamping rod (33), and a clamping plate (34). The hinge shaft (31) is connected to the end of the slide rail (21); The middle part of the hinge rod (32) is hinged to the hinge shaft (31); One end of the clamping rod (33) is hinged to the end of the hinge rod (32), and the other end is hinged to the ear seat (14) provided on the housing (11); The clamping plate (34) is disposed on the clamping rod (33).

7. The sewage pipe dredging equipment according to claim 2, characterized in that: The support plate (15) has a soil-breaking cone (17) on one end face away from the shell (11) for breaking the soil and centering.

8. A sewage pipe dredging device according to claim 2, characterized in that: The connecting rod (12) has a groove along its length, and the slide rail (21) of the transmission assembly slides in cooperation with the groove.

9. A sewage pipe dredging device according to claim 2, characterized in that: The housing (11) has a plurality of through slots (13) circumferentially provided for the transmission assembly to pass through.

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