Sewer dredging device

By designing a sewer unblocking device that includes unblocking components and a tracked assembly, the problems of large blockages being difficult to handle and secondary blockages are solved, achieving efficient unblocking and stable movement, and adapting to sewers of different diameters.

CN223893510UActive Publication Date: 2026-02-10TIANHE COLLEGE GUANGDONG POLYTECHNIC NORMAL UNIV
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Patent Information

Application Number
CN202520302882.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-24
Publication Date
2026-02-10
Estimated Expiration
2035-02-24

AI Technical Summary

Technical Problem

Existing sewer cleaning devices are ineffective at handling large blockages, and after cleaning, these blockages can easily accumulate in other parts of the sewer, causing secondary blockages.

Method used

A sewer unblocking device was designed, comprising a housing, unblocking components, and moving components. The unblocking components break up the blockage and guide it to the receiving cavity through the guide groove to avoid secondary blockage. At the same time, the track components enable stable movement and adaptability to different pipe diameters.

Benefits of technology

It effectively breaks up and collects blockages, preventing secondary blockages and improving unblocking efficiency and adaptability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a sewer dredging device. The sewer dredging device comprises a shell, a dredging component arranged at the front end of the shell and a moving component arranged on the shell, the shell is provided with a containing cavity and a mounting cavity formed in the outer side of the containing cavity. The dredging component comprises a driving assembly arranged in the mounting cavity, a dredging assembly driven by the driving assembly and a guide groove formed in the outer circumference of the dredging assembly in a surrounding mode, and a guide-out opening of the guide groove communicates with the containing cavity; the moving part comprises a plurality of crawler belt assemblies arranged on the outer side of the shell at intervals. The dredging component is used for dredging and scattering blockages, the scattered blockages are guided by the guide groove and enter the accommodating cavity, and the scattered blockages are accommodated in the accommodating cavity in the shell, so that secondary blockage caused by accumulation of the blockages at another position of a sewer is avoided; and meanwhile, the shell and the dredging component can reach different positions in the sewer by utilizing a crawler belt assembly of the moving component, so that a stable moving function is realized.
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Description

Technical Field

[0001] This utility model relates to the technical field of pipe dredging, and more specifically, to a sewer dredging device. Background Technology

[0002] With economic development, most buildings now use sewer systems for sewage disposal. Due to different living habits and variations in sewer system design, sewer blockages are a frequent problem. Existing sewer unblocking tools include manual and electric types, but neither is very effective, especially for partially blocked or partially cleared sewers.

[0003] A Chinese utility model patent with publication number CN207727697U discloses a sewer unclogging head and a sewer unclogging device. The sewer unclogging head includes a drill bit, with at least two claw hooks connected to the lower edge of the drill bit. The lower end of the drill bit is connected to a support rod, and the end of the support rod is mounted on a connecting spring. A middle sleeve is fitted on the support rod, and a connecting rod is mounted on the upper end of the middle sleeve. The upper end of the connecting rod is connected to the middle of the claw hooks via a rotating shaft. The sewer unclogging device includes the aforementioned sewer unclogging head, with the lower end of the outer sleeve of the sewer unclogging head connected to the connecting spring. The end of the connecting spring is connected to a power unit.

[0004] However, while the aforementioned sewer unblocking devices use drills to break down and clear blockages in the sewers, they only loosen the blockage at its source. The blockage itself is removed by hooks. However, the hooks have low structural strength and are ineffective at handling large pieces of blockage. These large pieces, after being removed from their original location, can easily accumulate in another part of the sewer, causing secondary blockages. Utility Model Content

[0005] Therefore, in order to solve the problem that the above-mentioned sewer unblocking devices are difficult to handle large pieces of blockage, and that large pieces of blockage, after leaving the blockage location, easily accumulate in another location in the sewer and cause secondary blockage, this utility model provides a sewer unblocking device, the specific technical solution of which is as follows:

[0006] A sewer unblocking device includes a housing, an unblocking component disposed at the front end of the housing, and a movable component disposed on the housing; the housing has a receiving cavity and an installation cavity disposed outside the receiving cavity; the unblocking component includes a driving assembly disposed in the installation cavity, an unblocking component driven by the driving assembly, and a guide groove surrounding the outer circumference of the unblocking component, the outlet of the guide groove communicating with the receiving cavity; the movable component includes a plurality of track assemblies spaced apart on the outer side of the housing.

[0007] The aforementioned sewer unblocking device uses unblocking components to clear blockages and break them up. The broken blockages are guided through guide channels and enter the receiving cavity, where they are contained within the housing. This prevents the blockages from accumulating in another part of the sewer and causing secondary blockages. Simultaneously, the track assembly of the moving parts allows the housing and unblocking components to reach different positions within the sewer, achieving stable movement.

[0008] Furthermore, the drive assembly includes a drive motor disposed within the mounting cavity and a drive transmission unit driven by the drive motor; the unblocking assembly includes an unblocking drill bit rotatably connected to the housing, the unblocking drill bit having a transmission part connected to the hub of the drive transmission unit.

[0009] Furthermore, the drive transmission unit includes a first transmission gear connected to the output end of the drive motor and a second transmission gear meshing with the first transmission gear. The second transmission gear is provided with a rotating shaft end connected to the hub of the unblocking drill bit.

[0010] Furthermore, the guide groove is provided with a spiral channel; the dredging drill bit is provided with a spiral guide groove.

[0011] Furthermore, the spiral channel rotates in the opposite direction to the spiral guide groove.

[0012] Furthermore, the front end of the housing is provided with an inclined baffle.

[0013] Furthermore, the baffle is provided with several liquid-passing structures, and the rear end of the housing is provided with filter holes.

[0014] Furthermore, a connecting pipe is provided at the end of the housing.

[0015] Furthermore, the moving component includes at least three track assemblies spaced apart on the housing, and a variable diameter assembly connecting the track assemblies and the housing. The housing is a circular shell structure with several moving tracks spaced apart around its circumference. The variable diameter assembly includes a moving seat, an adjusting unit, and a linkage unit. The moving seat is movably disposed on the moving tracks. The linkage unit includes a first connecting group and a second connecting group. The first connecting group is used to connect the housing and the track assemblies, and the second connecting group is used to connect the track assemblies and the moving seat. The adjusting unit is used to connect the housing and the moving seat.

[0016] Furthermore, the track assembly includes a mounting base, a movable belt surrounding the mounting base, and a drive assembly for driving the movable belt; the first connecting assembly includes at least two parallel and spaced connecting rods; the second connecting assembly includes a first rod seat, a second rod body, and a connecting spring, the second rod body including a second hinged end for hinged to the movable seat and a sleeve end for sleeved to the connecting spring, the first rod seat including a first hinged end for hinged to the mounting base and a plug end for sleeved to the sleeve end; the sleeve end is movable within the plug end. Attached Figure Description

[0017] The present invention can be further understood from the following description taken in conjunction with the accompanying drawings. The components in the drawings are not necessarily drawn to scale; rather, the focus is on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0018] Figure 1 This is a schematic diagram of the structure of the sewer unblocking device according to an embodiment of the present invention. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of the sewer unblocking device according to an embodiment of the present invention. Figure 2 ;

[0020] Figure 3 This is a structural cross-sectional view of the sewer unblocking device according to an embodiment of the present invention;

[0021] Figure 4 yes Figure 2 Enlarged view of the structure at point E in the middle.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Housing; 2. Unblocking components; 3. Moving components;

[0024] 11. Baffle; 12. Connecting pipe;

[0025] 21. Drive assembly; 22. Unblocking assembly; 23. Guide channel; 24. Drive motor; 25. Drive transmission unit;

[0026] 221. Unblock the drill bit;

[0027] 251. First transmission gear; 252. Second transmission gear;

[0028] 31. Track assembly; 32. Variable diameter assembly; 33. Moving seat; 34. Adjustment unit; 35. Linkage unit;

[0029] 311. Mounting base; 312. Moving belt; 313. Drive assembly;

[0030] 351. First connecting group; 352. Second connecting group. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with its embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and do not limit its scope of protection.

[0032] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] In this utility model, "first" and "second" do not represent a specific quantity or order, but are merely used to distinguish names.

[0035] like Figure 1 As shown, a sewer unblocking device according to one embodiment of the present invention includes a housing 1, an unblocking component 2 disposed at the front end of the housing 1, and a moving component 3 disposed on the housing 1; the housing 1 has a receiving cavity and an installation cavity disposed outside the receiving cavity; the unblocking component 2 includes a driving component 21 disposed in the installation cavity, an unblocking component 22 driven by the driving component 21, and a guide groove 23 surrounding the outer circumference of the unblocking component 22, the outlet of the guide groove 23 communicating with the receiving cavity; the moving component 3 includes a plurality of track assemblies 31 disposed at intervals outside the housing 1.

[0036] The aforementioned sewer unblocking device uses the unblocking component 22 to unblock and break up the blockage. The broken blockage is guided by the guide groove 23 and enters the receiving cavity. The receiving cavity inside the housing 1 contains the broken blockage, preventing the blockage from accumulating in another location in the sewer and causing secondary blockage. At the same time, the track assembly 31 of the moving component 3 is used to move the housing 1 and the unblocking component 2 to different positions in the sewer, achieving a stable movement function.

[0037] In one embodiment, the drive assembly 21 includes a drive motor 24 disposed within the mounting cavity and a drive transmission unit 25 driven by the drive motor 24; the unblocking assembly 22 includes an unblocking drill bit 221 rotatably connected to the housing 1, the unblocking drill bit 221 having a transmission part connected to the hub of the drive transmission unit 25. Specifically, a sealing ring is used to prevent water from seeping into the mounting cavity. Thus, by installing the drive motor 24 and drive transmission unit 25 of the drive assembly 21 within the mounting cavity, water or debris unblocked by the unblocking drill bit 221 is prevented from contacting the drive motor 24 and causing a short circuit.

[0038] In one embodiment, the drive transmission unit 25 includes a first transmission gear 251 connected to the output end of the drive motor 24, and a second transmission gear 252 meshing with the first transmission gear 251. The second transmission gear 252 has a rotating shaft end connected to the hub of the unclogging drill bit 221. Thus, the gear transmission structure of the drive transmission unit 25 has high meshing strength and is stable and reliable, facilitating the output of high torque to the transmission part of the unclogging drill bit 221.

[0039] In one embodiment, the guide groove 23 is provided with a spiral channel; the unblocking drill bit 221 is provided with a spiral guide groove. Specifically, the end of the spiral channel is adapted to the inlet of the receiving cavity. In this way, the spiral guide groove of the unblocking drill bit 221 guides part of the broken blockage to the spiral channel of the guide groove 23, which facilitates the collection of the broken blockage.

[0040] In one embodiment, the spiral channel rotates in the opposite direction to the spiral guide groove. Thus,

[0041] In one embodiment, the front end of the housing 1 is provided with an inclined baffle 11. In this way, the inclined baffle 11 can block and guide the broken blockage material onto the guide groove 23, which facilitates the collection of the broken blockage material.

[0042] In one embodiment, the baffle 11 is provided with several liquid-passing structures, and the rear end of the housing is provided with filter holes. In this way, the liquid-passing structures allow water to pass through the baffle 11, avoiding excessive resistance between the water and the baffle 11 that would affect the drainage process; at the same time, the filter holes at the rear end of the housing allow water entering the receiving cavity to flow out.

[0043] In one embodiment, a connecting pipe 12 is provided at the end of the housing 1. Specifically, an insulated power line is provided on the outside of the connecting pipe 12, and the end of the connecting pipe 12 is connected to a collection device, which may be an automated collection device that provides pumping power or a collection box.

[0044] In one embodiment, the moving component 3 includes at least three track assemblies 31 spaced apart on the housing 1, and a diameter-changing assembly 32 connecting the track assemblies 31 and the housing 1. The housing 1 is a circular shell structure with a plurality of moving tracks spaced apart on its circumference. The diameter-changing assembly 32 includes a moving seat 33, an adjusting unit 34, and a connecting rod unit 35. The moving seat 33 is movably disposed on the moving tracks. The connecting rod unit 35 includes a first connecting group 351 and a second connecting group 352. The first connecting group 351 is used to connect the housing 1 and the track assemblies 31, and the second connecting group 352 is used to connect the track assemblies 31 and the moving seat 33. The adjusting unit 34 is used to connect the housing 1 and the moving seat 33. Thus, by setting three track assemblies 31 around the housing 1, the track assemblies 31 are used to move within the housing 1. The large contact area between the track assemblies 31 and the sewer pipe wall effectively prevents the track assemblies 31 from slipping during movement, thereby improving the dredging efficiency. In addition, the variable diameter assembly 32 can be used to adjust the distance between the track assemblies 31 and the center of the housing 1, thereby adapting to sewers of different pipe diameters and improving practicality.

[0045] In one embodiment, the track assembly 31 includes a mounting base 311, a movable belt 312 surrounding the mounting base 311, and a drive group 313 for driving the movable belt 312; the first connecting group 351 includes at least two parallel and spaced connecting rods; the second connecting group 352 includes a first rod seat, a second rod body, and a connecting spring, the second rod body including a second hinged end for hinged with the movable base 33 and a sleeve end for sleeved with the connecting spring, the first rod seat including a first hinged end for hinged with the mounting base 311 and a plug end for sleeved with the sleeve end; the sleeve end can move within the plug end. Thus, utilizing the elastic restoring force of the connecting spring, the first rod seat can move relative to the second rod body. When the sewer pipe diameter is small, the connecting spring is compressed, and the elastic restoring force of the connecting spring can increase the friction between the movable belt 312 and the inner wall of the sewer, effectively preventing the track assembly 31 from slipping during movement and improving the dredging efficiency.

[0046] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A sewer unblocking device, characterized in that, It includes a housing (1), a dredging component (2) disposed at the front end of the housing (1), and a moving component (3) disposed on the housing (1). The housing (1) is provided with a receiving cavity and an installation cavity disposed outside the receiving cavity; The unblocking component (2) includes a drive assembly (21) disposed in the mounting cavity, an unblocking component (22) driven by the drive assembly (21), and a guide groove (23) surrounding the outer circumference of the unblocking component (22), wherein the outlet of the guide groove (23) is connected to the receiving cavity. The moving part (3) includes a plurality of track assemblies (31) spaced apart on the outside of the housing (1).

2. The sewer unblocking device according to claim 1, characterized in that, The drive assembly (21) includes a drive motor (24) disposed in the mounting cavity and a drive transmission unit (25) driven by the drive motor (24). The unblocking assembly (22) includes an unblocking drill bit (221) rotatably connected to the housing (1), the unblocking drill bit (221) having a transmission part connected to the hub of the drive transmission unit (25).

3. The sewer unblocking device according to claim 2, characterized in that, The drive transmission unit (25) includes a first transmission gear (251) connected to the output end of the drive motor (24) and a second transmission gear (252) meshing with the first transmission gear (251). The second transmission gear (252) is provided with a rotating shaft end connected to the hub of the unblocking drill bit (221).

4. The sewer unblocking device according to claim 2, characterized in that, The guide groove (23) is provided with a spiral channel; The dredging drill bit (221) is equipped with a spiral guide groove.

5. The sewer unblocking device according to claim 4, characterized in that, The spiral channel rotates in the opposite direction to the spiral guide groove.

6. The sewer unblocking device according to claim 1, characterized in that, The front end of the housing (1) is provided with an inclined baffle (11).

7. The sewer unblocking device according to claim 6, characterized in that, The baffle (11) is provided with several liquid passage structures, and the rear end of the shell is provided with filter holes.

8. The sewer unblocking device according to claim 1, characterized in that, The end of the housing (1) is provided with a connecting pipe (12).

9. The sewer unblocking device according to claim 1, characterized in that, The moving part (3) includes at least three track assemblies (31) spaced apart on the housing (1) and a variable diameter assembly (32) connecting the track assemblies (31) and the housing (1). The housing (1) is a circular shell structure with a plurality of moving tracks spaced apart on its circumference. The variable diameter assembly (32) includes a movable seat (33), an adjustment unit (34), and a linkage unit (35), wherein the movable seat (33) is movably disposed on the movable track; The linkage unit (35) includes a first connecting group (351) and a second connecting group (352). The first connecting group (351) is used to connect the housing (1) and the track assembly (31), and the second connecting group (352) is used to connect the track assembly (31) and the moving seat (33). The adjustment unit (34) is used to connect the housing (1) and the movable seat (33).

10. The sewer unblocking device according to claim 9, characterized in that, The track assembly (31) includes a mounting base (311), a movable belt (312) surrounding the mounting base (311), and a drive assembly (313) for driving the movable belt (312). The first connecting group (351) includes at least two connecting rods arranged in parallel and spaced apart; The second connecting assembly (352) includes a first rod seat, a second rod body and a connecting spring. The second rod body includes a second hinge end for hinged to the movable seat (33) and a sleeve end for sleeved to the connecting spring. The first rod seat includes a first hinge end for hinged to the mounting seat (311) and a plug end for sleeved to the sleeve end. The sleeve end can move within the plug end.

Citation Information

Patent Citations

  • Sewer mediation head and sewer pull throughs

    CN207727697U