CN113976554A

CN113976554A - Internal cleaning device for sewage discharge of conveying pipeline

Info

Publication number: CN113976554A
Application number: CN202111193119.1A
Authority: CN
Inventors: 李达; 陈明; 王祚立; 于振亚
Original assignee: Individual
Current assignee: Qingdao Yishui Engineering Co ltd
Priority date: 2021-10-13
Filing date: 2021-10-13
Publication date: 2022-01-28
Anticipated expiration: 2041-10-13
Also published as: CN113976554B

Abstract

The invention belongs to the technical field of pipeline decontamination, and particularly relates to an internal cleaning device for conveying pipeline decontamination, which comprises a supporting base, clamping lower pieces connected with two sides of the upper end of the supporting base, a clamping upper piece and a cleaning assembly placed in a pipeline, wherein the clamping upper piece is movably connected with the clamping lower piece and can turn over around the connection part of the clamping upper piece and the clamping lower piece, when the clamping upper piece turns over to be opposite to the clamping lower piece, the clamping lower piece and the clamping upper piece surround the pipeline and fix the pipeline, the cleaning assembly comprises a hollow push-pull cross rod and a cleaning head connected with one end of the push-pull cross rod, the invention solves the problems that partial foreign matters are retained in the existing pipeline after long-time use, even after the pipeline is disassembled into multiple sections, the foreign matters in the pipeline are inconvenient to throw away and clean, and especially the blockage is caused by the fact that thick oil stains attached to the inner wall of the pipeline cannot be effectively cleaned for a long time, causing the problem of unsmooth sewage discharge.

Description

Internal cleaning device for sewage discharge of conveying pipeline

Technical Field

The invention belongs to the technical field of pipeline decontamination, and particularly relates to an internal cleaning device for conveying pipeline sewage discharge.

Background

The pipeline is widely distributed in the underground space of modern cities, is a channel for discharging the production and living wastewater and rain floods of the whole city, and is an important bearer for the basic functions of the city. In the process of flowing through sewage, unknown sediment can be generated, the sludge has high water content, is easy to rot, has strong odor, contains parasitic ova, pathogenic microorganisms and heavy metals, can cause secondary pollution if not properly treated, and can influence the discharge effect of the sewage.

Chinese patent with application number CN201822279306.1 discloses a municipal pipeline desilting and maintaining device, including the cleaning box, the welding of one side of cleaning box has the thing board of putting, the upper surface of putting the thing board passes through the first motor of bolt fixedly connected with, the output of first motor is rotated and is connected with the telescopic link, the lantern ring has been cup jointed to the outside of telescopic link, and this utility model discloses at the in-process that uses, after using the silt on brush-holder stud and the shower nozzle with the municipal pipeline inner wall to wash, cup joint the knot of drawing on the telescopic link in the catching groove on the telescopic link surface for on the cleaning block rotated the inner wall of laminating mutually with the municipal pipeline through first bull stick and linking piece, the accessible telescopic link was handled with the effectual bringing out of softer bonding silt on the inner wall.

However, the above prior art pipeline interior can retain part of foreign matters after long-term use, even after being disassembled into multiple sections, the foreign matters in the pipeline interior are inconvenient to throw away and clean, and especially, thick and heavy oil stains attached to the inner wall of the pipeline cannot be effectively cleaned for a long time to cause blockage, so that unsmooth sewage discharge is caused.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides an internal cleaning device for conveying pipeline sewage discharge, which is used for solving the problems that partial foreign matters can be retained in the existing pipeline after long-time use, the foreign matters in the pipeline are inconvenient to throw and clean even after being disassembled into multiple sections, and especially, thick and heavy oil stains attached to the inner wall of the pipeline cannot be effectively cleaned for a long time to cause blockage, so that the sewage discharge is unsmooth.

In order to solve the technical problems, the invention adopts the following technical scheme:

the inside cleaning device for the sewage discharge of the conveying pipeline comprises a supporting base, a clamping lower piece, a clamping upper piece and a cleaning assembly, wherein the clamping lower piece and the clamping upper piece are connected to two sides of the upper end of the supporting base, the cleaning assembly is placed in the pipeline, the clamping upper piece and the clamping lower piece are movably connected, the clamping upper piece can turn around the joint of the clamping upper piece and the clamping lower piece, when the clamping upper piece turns over to be opposite to the clamping lower piece, the clamping lower piece and the clamping upper piece surround the pipeline and fix the pipeline, the cleaning assembly comprises a hollow push-pull transverse rod and a cleaning head connected with one end of the push-pull transverse rod, a water inlet pipe is arranged in the push-pull transverse rod, a plurality of water spraying branch pipes are arranged on the cleaning head, and the plurality of water spraying branch pipes are communicated with the water inlet pipe.

Further, wash the head including from the right side to left the washing one that connects gradually and wash two portions, wash one and go up the cover and be equipped with the mud scraping ring, it is provided with the rubber packing cup with washing two portion junctions to wash one, the rubber packing cup butt in the pipeline inner wall.

The scraping assembly is sleeved on the periphery of the push-pull cross rod, an assembly frame body is arranged in the scraping assembly, a plurality of concentric annular sheet bodies are connected with the periphery of the assembly frame body, a fixing frame is connected in the assembly frame body, a gear piece is rotatably connected in the fixing frame, a tooth-shaped groove is formed in the push-pull cross rod and meshed with the gear piece, a pull wire is further connected to the tail of the scraping assembly, and the pull wire is used for moving the scraping assembly along the axis of the push-pull cross rod.

Further, a spring is arranged between the scraping assembly and the cleaning head, when the pulling wire moves the scraping assembly towards the left relative to the push-pull cross rod, the spring is in a stretching state, foreign matters attached to the inner wall of the pipeline are scraped away by the inner sides of the annular sheet bodies, when the pulling wire is released, the scraping assembly moves towards the right relative to the push-pull cross rod by the spring, and the scraped foreign matters are pushed to the outside of the pipeline by the outer sides of the annular sheet bodies.

The scraping component comprises a scraping component and a stabilizing component arranged inside the scraping component, wherein the stabilizing component is provided with a plurality of adjusting rotating mechanisms and a support body adjusting mechanism, each adjusting rotating mechanism comprises a hinged support connected to the component support body, a rotating body and an adjusting rod sleeved on the inner periphery of the rotating body, one end of the rotating body is movably connected with the hinged support, the other end of the rotating body is slidably connected with the adjusting rod, and when the relative position of the adjusting rod and the rotating body changes, the plurality of support body adjusting mechanisms are close to or far away from the periphery of the push-pull cross rod.

Further, the support body adjusting mechanism comprises a cross rod sliding seat, a seat body connecting piece and a buffering connecting piece, two ends of the seat body connecting piece are respectively connected with the cross rod sliding seat and the assembly support body, and two ends of the buffering connecting piece are respectively connected with the adjusting rod and the cross rod sliding seat.

Further, still be provided with the locking outer dish on the washing head, the locking outer dish with wash the periphery of two parts and be connected, be provided with a plurality of archs in the locking outer dish, the periphery cover of push-and-pull horizontal pole is equipped with the locking inner disc, the locking inner disc with strike off the head of subassembly and be connected, a plurality of breachs and guide slot have been seted up on the locking inner disc, the arch cooperatees with the breach, still be connected with a plurality of with on the subassembly support body the annular lamellar body perpendicular rotation scraper blade that sets up, the outside of locking outer dish still is connected with the handle, presses the handle, the arch slides in the guide slot, strike off the subassembly and rotate in the pipeline, the rotation scraper blade scrapes away the foreign matter of pipeline inner wall.

Furthermore, a connecting socket is arranged in the locking inner disc, a plug-in is further arranged at the head of the scraping assembly, and the plug-in is matched with the connecting socket to connect the locking inner disc with the scraping assembly.

Compared with the prior art, the invention has the following beneficial effects:

1. the invention adopts the technical scheme that a to-be-cleaned pipeline needing to be disassembled is placed on a supporting base and is fixed by a clamping lower piece and a clamping upper piece, so that the pipeline is prevented from shaking in the pipeline cleaning process, the operation is inconvenient, one end of a push-pull cross rod is grasped by a palm, a cleaning head connected with the push-pull cross rod moves in the pipeline, a plurality of water spraying branch pipes can primarily wash oil stains attached to the inner wall of the pipeline, the cleaning head can stay at a plurality of positions in each axial direction of the pipeline under the driving of the push-pull cross rod, the targeted decontamination is realized, foreign matters blocked and retained in the pipeline can be pushed and pressed by the end part of the cleaning head and are discharged to the outside of the pipeline, and the operation is simple and easy;

2. according to the invention, the cleaning head is arranged into two parts, and the mud scraping ring and the rubber cup are additionally arranged, wherein the mud scraping ring can scrape oil stains adhered to the inner wall of the pipeline in the process of moving the push-pull cross rod back and forth, the rubber cup is abutted against the inner wall, so that residual water liquid in the pipeline is separated from one side of the mud scraping ring, the water liquid is stirred onto the mud scraping ring, the phenomenon that after the cleaning head is used for a long time, the friction force between the water liquid and the inner wall of the pipeline is reduced due to excessive oil sludge remained on the mud scraping ring is avoided, and an important guarantee effect is played on the scraping effect;

3. the scraping assembly can move upwards towards the push-pull cross rod shaft under the action of the stay wire, wherein the smoothness in the moving process is ensured by the transmission form of the tooth-shaped groove and the gear piece, foreign matters attached to the inner wall of the pipeline are further cleaned by the plurality of concentrically arranged annular sheet bodies in the moving process of the scraping assembly, in addition, after the stay wire is released, the scraping assembly can be reset by a spring connected with the spring, and the foreign matters can be cleaned by the annular sheet bodies again.

4. The scraping component can be moved to one side of the cleaning head before operation, the locking outer disc and the locking inner disc are matched to lock the locking outer disc and the locking inner disc, the handle is pressed to enable the whole cleaning device to rotate in the pipeline, the rotating scraping plates which are perpendicular to the annular sheet body can clean foreign matters on the inner wall in the radial direction, particularly, when the cleaning device is disassembled, the foreign matters accumulated on the inner wall are more and are difficult to clean at the connecting positions of a plurality of pipelines, the scraping component is limited near the opening of the pipeline by the matching mode of the locking outer disc and the locking inner disc after the tail parts of the two parts are pushed out of one side of the pipeline by the push-pull cross rod, and the handle is held by hands to rotate around the periphery to clean the pipeline in a targeted mode.

Drawings

FIG. 1 is a schematic front view of an embodiment of an internal cleaning device for blowdown of a conveying pipeline according to the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic perspective view of an embodiment of an internal cleaning device for a sewage draining pipeline according to the present invention;

FIG. 4 is a schematic top view of a scraper assembly in an embodiment of an internal cleaning apparatus for sewer piping according to the present invention;

FIG. 5 is a partial enlarged view of the portion B in FIG. 4;

FIG. 6 is a schematic cross-sectional view of A-A in FIG. 4;

FIG. 7 is a perspective view of a cleaning head of an embodiment of an internal cleaning apparatus for removing contaminants from a pipeline according to the present invention;

FIG. 8 is a schematic perspective view of a cleaning head and a locking inner disk of an embodiment of an internal cleaning apparatus for a sewage pipe of the present invention;

reference numerals in the drawings of the specification include:

the cleaning device comprises a supporting base 1, a clamping lower piece 10, a clamping upper piece 11, a cleaning assembly 2, a push-pull cross rod 20, a water inlet pipe 201, a cleaning head 21, a cleaning first part 211, a mud scraping ring 2111, a rubber cup 2112, a cleaning second part 212 and a water spraying branch pipe 22;

the scraping component 3, the component frame body 30, the annular sheet body 31, the fixed frame 32, the gear piece 33, the tooth-shaped groove 34, the pull wire 35, the spring 36 and the rotating scraper 37;

the stabilizing component 4, an adjusting rotating mechanism 41, a hinged support 411, a rotating body 412, an adjusting rod 413, a frame body adjusting mechanism 42, a cross rod sliding seat 421, a seat body connecting piece 422 and a buffer connecting piece 423;

locking outer disc 5, protrusion 50, handle 51, locking inner disc 6, notch 60, guide groove 61, connection socket 62, plug 63, pipe 7.

Detailed Description

In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.

Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Example (b):

as shown in figures 1-8, the invention relates to an internal cleaning device for sewage disposal of a conveying pipeline, which comprises a supporting base 1, a clamping lower piece 10 connected with two sides of the upper end of the supporting base 1, a clamping upper piece 11 and a cleaning assembly 2 placed in the pipeline, wherein the clamping upper piece 11 is movably connected with the clamping lower piece 10, the clamping upper piece 11 can turn over around the connection part of the clamping lower piece and the clamping upper piece, when the clamping upper piece 11 turns over to be opposite to the clamping lower piece 10, the clamping lower piece 10 and the clamping upper piece 11 surround the pipeline and fix the pipeline, the pipeline to be cleaned which needs to be detached is placed on the supporting base and fixed by the clamping lower piece and the clamping upper piece, or fixed by a hoop, the pipeline is prevented from shaking in the process of cleaning the pipeline, the operation is inconvenient, the cleaning assembly 2 comprises a hollow push-pull cross rod 20, one end of the push-pull cross rod is grasped by a palm, a cleaning head connected with the push-pull cross rod moves in the pipeline, the cleaning head part is driven by the push-pull cross rod and can stay at a plurality of positions in the axial direction of the pipeline, targeted decontamination is achieved, the cleaning head part 21 is connected with one end of the push-pull cross rod 20, the push-pull cross rod 20 is internally provided with the water inlet pipe 201, the cleaning head part 21 is provided with a plurality of water spraying branch pipes 22, the water spraying branch pipes 22 are communicated with the water inlet pipe 201, the end part of the cleaning head part can push and press foreign matters blocked and detained in the pipeline and the foreign matters are discharged to the outside of the pipeline, and the operation is simple and easy to implement.

Cleaning head sets to two parts, add and establish mud scraping ring and rubber leather cup, cleaning head 21 includes the washing one portion 211 and washing two 212 that connect gradually from the right side to a left side, the cover is equipped with mud scraping ring 2111 on washing one portion 211, mud scraping ring can strike off the greasy dirt of pipeline inner wall adhesion at push-and-pull horizontal pole round trip movement in-process, it is provided with rubber leather cup 2112 with washing two 212 junctions to wash one portion 211, rubber leather cup 2112 butt in the pipeline inner wall, with remaining water liquid separation in the pipeline in one side of mud scraping ring, stir water liquid to mud scraping ring on, avoid because of long-time after using, it reduces and pipeline inner wall friction dynamics to remain too much fatlute on the mud scraping ring, play important guarantee to the effect of scraping. The scraping component 3 is sleeved on the periphery of the push-pull cross bar 20, the scraping component 3 is provided with a component frame body 30, a plurality of concentric ring-shaped sheets 31 connected to the outer circumference of the assembly frame 30, which, during the movement of the scraping assembly, the foreign matters attached to the inner wall of the pipeline are further cleaned, and after the pull wire is released by the additionally connected spring, the scraping component can be reset, foreign matters can be cleaned by the annular sheet body again, the fixed frame 32 is rotatably connected with the gear piece 33, the push-pull cross rod 20 is provided with a tooth-shaped groove 34, the tooth-shaped groove 34 is meshed with the gear piece 33, the scraping component can move upwards towards the push-pull cross rod under the action of the pull wire, wherein the transmission form of the tooth-shaped groove and the gear piece ensures the smoothness in the moving process, the tail part of the scraping component 3 is also connected with a stay wire 35, and the stay wire 35 is used for moving the scraping component 3 along the axis of the push-pull cross rod 20. Adopt this kind of pulling clearance mode, can solve in the narrow and small place of operating space, the push-and-pull horizontal pole can't return the removal with palm gripping, especially at municipal construction scene, in the place of pipeline turn, the push-and-pull horizontal pole can not continue to impel, and the clearance scope of wasing the head is limited, uses this subassembly of striking off to solve. A spring 36 is further arranged between the scraping component 3 and the cleaning head 21, when the pulling wire 35 moves the scraping component 3 towards the left relative to the push-pull cross rod 20, the spring 36 is in a stretching state, foreign matters attached to the inner wall of the pipeline are scraped away by the inner sides of the annular sheet bodies 31, when the pulling wire 35 is released, the scraping component 3 moves towards the right relative to the push-pull cross rod 20 by the spring 36, and the scraped foreign matters are pushed to the outside of the pipeline by the outer sides of the annular sheet bodies 31.

The stabilizing assembly 4 is provided with a plurality of adjusting rotating mechanisms 41 and a plurality of frame adjusting mechanisms 42, each adjusting rotating mechanism 41 comprises a hinged support 411 connected to the assembly frame 30, a rotating body 412 and an adjusting rod 413 sleeved on the inner periphery of the rotating body 412, one end of the rotating body 412 is movably connected with the hinged support 411, the other end of the rotating body 412 is slidably connected with the adjusting rod 413, and when the relative positions of the adjusting rod 413 and the rotating body 412 are changed, the plurality of frame adjusting mechanisms 42 are close to or far away from the outer periphery of the push-pull cross rod 20. Scraping component 3 in the removal, when the length of push-and-pull horizontal pole 20 is longer, gear piece 33, in the transmission of flute 34, scrape component 3 and can squint, take place to rock, through in steady subassembly 4, adjust pole 413 and rotation body 412 use threaded connection, through adjusting relative position between them, make support body adjustment mechanism 42 on adjusting pole 413 right side be close to or keep away from relative push-and-pull horizontal pole 20, let whole scraping the position that appears the skew in component 3 removes have the strong point, avoid scraping component 3 and take place the card stifled in the pipeline, arouse that push-and-pull horizontal pole 20 can not follow the condition emergence of freely pulling in the pipeline. The frame adjusting mechanism 42 includes a cross bar sliding seat 421, a seat connecting member 422 and a buffering connecting member 423, two ends of the seat connecting member 422 are respectively connected to the cross bar sliding seat 421 and the assembly frame 30, and two ends of the buffering connecting member 423 are respectively connected to the adjusting rod 413 and the cross bar sliding seat 421.

Although the blocking situation is relieved during the movement of the scraping component 3, the thicknesses of foreign matters on the inner walls of all parts in the pipeline are possibly different, when the annular sheet body 31 passes through a part with thick attached foreign matters, the scraping component 3 slightly swings under the action of the pull wire 35, the buffer connecting piece 423 is added, the deviation can be generated after the swinging, and the self-adjustment and the homing can be realized after the part is passed through.

Still be provided with the locking outer dish 5 on the washing head 21, the locking outer dish 5 rotates with the periphery that washs two 212 and is connected, be provided with a plurality of archs 50 in the locking outer dish 5, the periphery cover of push-and-pull horizontal pole 20 is equipped with the locking inner disc 6, the locking inner disc 6 is connected with the head of scraping subassembly 3, a plurality of breachs 60 and guide slot 61 have been seted up on the locking inner disc 6, protruding 50 cooperatees with breach 60, still be connected with a plurality of rotation scraper blades 37 that set up perpendicularly with annular lamellar body 31 on the subassembly support body 30, the outside of locking outer dish 5 still is connected with handle 51, press handle 51, protruding 50 slides in guide slot 61, it rotates in the pipeline to scrape subassembly 3, rotation scraper blade 37 scrapes away the foreign matter of pipeline inner wall. The scraping component is moved to one side of the cleaning head before operation, the locking outer disc is matched with the locking inner disc, the locking outer disc and the locking inner disc are close to the cleaning head and locked after the cleaning head is close to the cleaning head in the axis direction, the handle is pressed, the whole cleaning device is made to rotate in a pipeline, the rotating scraping plates which are perpendicular to the annular sheet body can clean foreign matters on the inner wall along the radial direction, particularly, when the cleaning device is disassembled, the foreign matters accumulated on the inner wall are more and are difficult to clean at the joints of a plurality of pipelines, the handle 51 is exposed after the tail parts of two parts to be cleaned are pushed out of one side of the pipeline by the push-pull cross rod, the scraping component is limited near the pipeline opening by the matching form of the locking outer disc and the locking inner disc, and the cleaning device can be cleaned in a targeted mode by holding the handle around the periphery by hands. Locking inner disc 6 has a connection socket 62 therein, and the head of scraping assembly 3 is further provided with an insert 63, which insert 63 cooperates with connection socket 62 to connect locking inner disc 6 with scraping assembly 3.

The foregoing are merely exemplary embodiments of the present invention, and no attempt is made to show structural details of the invention in more detail than is necessary for the fundamental understanding of the art, the description taken with the drawings making apparent to those skilled in the art how the several forms of the invention may be embodied in practice with the teachings of the invention. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and the specific meanings of the terms may be understood by those skilled in the art according to specific situations.

In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being fixed or detachable or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims

1. The utility model provides a pipeline blowdown is with inside cleaning device which characterized in that: comprises a supporting base (1), a clamping lower piece (10) and a clamping upper piece (11) which are connected with the two sides of the upper end of the supporting base (1), and a cleaning component (2) which is arranged in a pipeline, the upper clamping piece (11) is movably connected with the lower clamping piece (10), the upper clamping piece (11) can turn over around the joint of the upper clamping piece and the lower clamping piece, when the upper clamping piece (11) is turned over to be opposite to the lower clamping piece (10), the lower clamping piece (10) and the upper clamping piece (11) surround the pipeline, the pipeline is fixed, the cleaning component (2) comprises a hollow push-pull cross rod (20) and a cleaning head (21) connected with one end of the push-pull cross rod (20), a water inlet pipe (201) is arranged in the push-pull cross rod (20), a plurality of water spraying branch pipes (22) are arranged on the cleaning head part (21), and the plurality of water spraying branch pipes (22) are communicated with the water inlet pipe (201).

2. An internal cleaning device for sewer pipes according to claim 1, characterized in that: wash head (21) including from the right side to left the washing one (211) that connects gradually and wash two (212), wash one (211) and go up the cover and be equipped with and scrape mud ring (2111), it is provided with rubber packing cup (2112) with washing two (212) junctions to wash one (211), rubber packing cup (2112) butt in the inner wall of pipeline.

3. An internal cleaning device for sewer pipes according to claim 2, characterized in that: the scraping device is characterized by further comprising a scraping assembly (3) arranged in the pipeline, the scraping assembly (3) is sleeved on the periphery of the push-pull cross rod (20), an assembly frame body (30) is arranged in the scraping assembly (3), a plurality of concentric annular sheet bodies (31) are connected with the periphery of the assembly frame body (30), a fixing frame (32) is connected into the assembly frame body (30), a gear piece (33) is connected into the fixing frame (32) in a rotating mode, a tooth-shaped groove (34) is formed in the push-pull cross rod (20), the tooth-shaped groove (34) is meshed with the gear piece (33), a pull wire (35) is further connected to the tail portion of the scraping assembly (3), and the pull wire (35) is used for enabling the scraping assembly (3) to move on the axis of the push-pull cross rod (20).

4. An internal cleaning device for sewer pipes according to claim 3, characterized in that: a spring (36) is further arranged between the scraping assembly (3) and the cleaning head (21), when the scraping assembly (3) moves towards the left relative to the push-pull cross rod (20) through the pull wire (35), the spring (36) is in a stretching state, foreign matters attached to the inner wall of the pipeline are scraped away by the inner sides of the annular sheet bodies (31), when the pull wire (35) is released, the scraping assembly (3) moves towards the right relative to the push-pull cross rod (20) through the spring (36), and the scraped foreign matters are pushed to the outside of the pipeline by the outer sides of the annular sheet bodies (31).

5. An internal cleaning device for sewer pipes according to claim 4, wherein: the scraping device is characterized by further comprising a stabilizing assembly (4) arranged inside the scraping assembly (3), wherein a plurality of adjusting rotating mechanisms (41) and support body adjusting mechanisms (42) are arranged in the stabilizing assembly (4), each adjusting rotating mechanism (41) comprises a hinged support (411) connected to the assembly support body (30), a rotating body (412) and an adjusting rod (413) sleeved on the inner periphery of the rotating body (412), one end of the rotating body (412) is movably connected with the hinged support (411), the other end of the rotating body (412) is connected with the adjusting rod (413) in a sliding mode, and when the relative position of the adjusting rod (413) and the rotating body (412) changes, the plurality of support body push-pull adjusting mechanisms (42) are close to or far away from the outer periphery of the cross rod (20).

6. An internal cleaning device for sewer pipes according to claim 5, wherein: support body adjustment mechanism (42) include horizontal pole sliding seat (421), pedestal connecting piece (422) and buffering connecting piece (423), the both ends of pedestal connecting piece (422) respectively with horizontal pole sliding seat (421), subassembly support body (30) are connected, buffering connecting piece (423) both ends respectively with adjust pole (413), horizontal pole sliding seat (421) are connected.

7. An internal cleaning apparatus for sewer pipes according to claim 6, wherein: the cleaning head (21) is further provided with a locking outer disc (5), the locking outer disc (5) is connected with the periphery of the cleaning two parts (212), a plurality of bulges (50) are arranged in the locking outer disc (5), a locking inner disc (6) is sleeved on the periphery of the push-pull cross rod (20), the locking inner disc (6) is connected with the head of the scraping component (3), a plurality of notches (60) and guide grooves (61) are formed in the locking inner disc (6), the bulges (50) are matched with the notches (60), a plurality of rotating scraping plates (37) perpendicular to the annular sheet body (31) are further connected to the component frame body (30), the outer side of the locking outer disc (5) is further connected with a handle (51) for pressing the handle (51), the bulges (50) slide in the guide grooves (61), and the scraping component (3) rotates in a pipeline, the rotary scraper (37) scrapes off foreign matters on the inner wall of the pipeline.

8. An internal cleaning apparatus for sewer pipes according to claim 7, wherein: the locking inner disc (6) is internally provided with a connecting socket (62), the head of the scraping assembly (3) is also provided with an insert (63), and the insert (63) is matched with the connecting socket (62) to connect the locking inner disc (6) with the scraping assembly (3).