CN215314502U

CN215314502U - Pipeline cleaning device

Info

Publication number: CN215314502U
Application number: CN202121870639.7U
Authority: CN
Inventors: 周艳; 庾维; 唐瑶; 王彩英; 何川
Original assignee: Affiliated Hospital of Guilin Medical University
Current assignee: Affiliated Hospital of Guilin Medical University
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2021-12-28
Anticipated expiration: 2031-08-11

Abstract

The utility model provides a pipeline cleaning device, which comprises a water guide joint and a cleaning brush, wherein the water guide joint comprises a water guide pipe and a joint part arranged at one end of the water guide pipe; an interface channel communicated with the water guide channel is arranged in the joint part and is connected with a high-pressure water gun; the cleaning brush is used for being placed in a pipeline to be cleaned and comprises a fixed seat and bristles, the fixed seat comprises an end plate and a circumferential wall vertically connected with the end plate, the end plate and the circumferential wall jointly enclose a water inlet cavity, and the bristles are arranged on the outer surface of the circumferential wall and can be contacted with the inner wall of the pipeline to be cleaned; water sprayed from the high-pressure water gun can be sprayed into a pipeline to be cleaned through the water guide channel and enters the water inlet cavity, then the end plate is pushed to drive the cleaning brush to move along the pipeline to be cleaned, and in the process, the bristles can scrub the inner wall of the pipeline, so that the inner wall of the pipeline with longer length can be better cleaned.

Description

Pipeline cleaning device

Technical Field

The utility model relates to a cleaning device, in particular to a pipeline cleaning device.

Background

Some medical pipelines are long, even 2-3 meters long, and the inner walls of the medical pipelines cannot be cleaned by common brushes, so in the prior art, the medical pipelines with long lengths are generally flushed by high-pressure water guns. When washing, aim at the pipeline one end of treating abluent pipeline with high-pressure squirt, during the water injection got into the pipeline of treating abluent in the high-pressure squirt, the other end blowout from treating the pipeline of wasing at last accomplished washing to the pipeline inner wall. However, the high-pressure squirt that adopts at present, the direction of its water is mostly for spouting forward, and the pipe wall of treating the washing pipeline is located the side of the rivers of spouting usually, and the impact force of the water jet that it received reduces greatly, consequently, adopts prior art's high-pressure squirt's cleaning method can't clean the longer pipeline inner wall of length well.

Disclosure of Invention

In view of the above-mentioned problems in the background art, the present invention provides a pipeline cleaning device to better clean the inner wall of a pipeline with a long length.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:

a pipeline cleaning device comprises a water guide joint and a cleaning brush, wherein the water guide joint comprises a water guide pipe and a joint part connected to one end of the water guide pipe, the water guide pipe is detachably connected with a pipeline to be cleaned, and a water guide channel is arranged in the water guide pipe in a penetrating manner; an interface channel is arranged in the joint part in a penetrating manner, the interface channel is communicated with the water guide channel, and the interface channel is used for being detachably connected with a high-pressure water gun; the cleaning brush is used for being placed in the pipeline to be cleaned, the cleaning brush comprises a fixed seat and bristles, the fixed seat comprises an end plate and a circumferential wall which is arranged on the circumference of the end plate in a surrounding manner and is vertically connected with the end plate, the end plate and the circumferential wall jointly enclose a water inlet cavity with an opening, and the bristles are arranged on the outer surface of the circumferential wall and can be contacted with the inner wall of the pipeline to be cleaned; water sprayed from the high-pressure water gun can be sprayed into the pipeline to be cleaned through the water guide channel and enters the water inlet cavity, and then the end plate is pushed to drive the cleaning brush to move along the pipeline to be cleaned.

Furthermore, the cleaning brush also comprises an S-shaped guide plate, the S-shaped guide plate is arranged at the water inlet cavity, the two opposite ends of the S-shaped guide plate are connected with the inner surface of the circumferential wall, and one side of the S-shaped guide plate is connected with the end plate; the water guide pipe is internally provided with a spiral guide plate so that water passing through the water guide channel is sprayed out spirally.

Furthermore, the cleaning brush also comprises an S-shaped guide plate, the S-shaped guide plate is arranged at the water inlet cavity, the two opposite ends of the S-shaped guide plate are connected with the inner surface of the circumferential wall, and one side of the S-shaped guide plate is connected with the end plate; the water guide channel is spiral, so that water passing through the water guide channel is spirally sprayed.

Furthermore, one side of the S-shaped guide plate, which is far away from the end plate, protrudes out of the water inlet cavity.

Further, the bristles are uniformly fixed on the outer surface of the circumferential wall.

Furthermore, the brush hair is fixed on the peripheral wall of a rubber ring, and the rubber ring is sleeved outside the peripheral wall of the fixed seat so as to detachably connect the brush hair and the fixed seat together.

Furthermore, the surface of circumference wall is equipped with the constant head tank, and the internal surface of rubber ring is equipped with the location arch, and the location arch is pegged graft in the constant head tank to fix a position the rubber ring.

Furthermore, one side of the end plate, which is back to the water inlet cavity, is also provided with an arc guide end surface.

Furthermore, still be equipped with the spigot surface of slope on the periphery wall of aqueduct, the setting of spigot surface makes the cross section of aqueduct diminish along the direction of keeping away from the joint portion gradually, and the spigot surface facial make-up is equipped with first sealing washer.

Furthermore, a second sealing ring is arranged in the interface channel.

Due to the adoption of the technical scheme, the utility model has the following beneficial effects:

1. above-mentioned pipeline cleaning device, it includes water guide joint and cleaning brush, during the use, arrange the cleaning brush in treating abluent pipeline, then connect the aqueduct of water guide joint with treating abluent pipe connection, connect high-pressure squirt in the interface channel department that the water guide connects, during the use, water sprayed from high-pressure squirt can spout into in treating abluent pipeline and enter the intake antrum via the water guide channel, and then promote the end plate and follow the pipeline motion of treating abluent pipeline in order to drive the cleaning brush, at the cleaning brush along the in-process of treating abluent pipeline motion, the brush hair that sets up on the fixing base circumference wall can be scrubbed the pipeline inner wall, thereby can clean the longer pipeline inner wall of length better, make the washing of pipeline inner wall cleaner.

2. Above-mentioned pipeline cleaning device, its cleaning brush still include S type guide plate, and the aqueduct is built-in to be equipped with spiral guide plate or water guide channel and is the heliciform to the water that makes through water guide channel is the heliciform blowout, and the water current that the heliciform sprays not only can promote the cleaning brush along treating abluent pipeline motion, and it can also cooperate with S type guide plate, drives the rotation of cleaning brush use the center pin of treating the pipeline of wasing as the rotation center, in order to further improve abluent effect.

Drawings

Fig. 1 is a structural diagram of a water guide joint according to a first embodiment of the present invention.

Fig. 2 is a structural diagram of the washing brush according to the first embodiment of the present invention.

Fig. 3 is a diagram illustrating a state of use of the pipe cleaning apparatus according to the first embodiment of the present invention.

Fig. 4 is a structural diagram of a water guide joint according to a second embodiment of the present invention.

Fig. 5 is a structural diagram of a washing brush according to a second embodiment of the present invention.

Fig. 6 is a diagram illustrating a state of use of the pipe cleaning apparatus according to the second embodiment of the present invention.

Fig. 7 is a structural view of a water guide joint according to a third embodiment of the present invention.

Fig. 8 is a structural diagram of a washing brush according to a fourth embodiment of the present invention.

Fig. 9 is a structural view of a holder of the washing brush shown in fig. 8.

Fig. 10 is a structural view of a rubber ring and bristles in the washing brush shown in fig. 8.

Description of the main elements

1. A water conducting joint; 11. a water conduit; 12. a water guide channel; 13. a guide surface; 14. a first seal ring; 16. a joint portion; 17. an interface channel; 18. a second seal ring; 19. a spiral deflector; 2. cleaning brushes; 20. a fixed seat; 21. an end plate; 22. a circumferential wall; 23. a water inlet cavity; 24. a circular arc guide surface; 25. brushing; 26. an S-shaped guide plate; 27. a rubber ring; 28. positioning a groove; 29. a protrusion; 200. a pipeline.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, 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 belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example 1

Referring to fig. 1 to 3, a first embodiment of the present invention provides a pipeline cleaning device for cleaning an inner wall of a pipeline 200 with a long length, the pipeline cleaning device including a water guide connector 1 and a cleaning brush 2.

The water introduction joint 1 includes a water introduction pipe 11 and a joint portion 16 connected to one end of the water introduction pipe 11. The water guide pipe 11 is detachably connected with the pipeline 200 to be cleaned, and a water guide channel 12 is arranged in the water guide pipe 11 in a penetrating manner. In the present embodiment, an end of the water guide pipe 11 remote from the joint part 16 is detachably inserted into the pipe 200 to be cleaned. Still be equipped with the spigot surface 13 of slope on the periphery wall of aqueduct 11, the setting of spigot surface 13 makes the cross section of aqueduct 11 diminish along the direction of keeping away from joint portion 16 gradually, with more make things convenient for the grafting operation of aqueduct 11 with treating the washing pipeline 200, and the setting of spigot surface 13, can make the washing of aqueduct 11 adaptation in different internal diameter pipelines 200, application range is wider, and it is inseparabler to make aqueduct 11 and pipeline 200 inner wall cooperate, reduce the emergence of the phenomenon of leaking. The outer surface of the water guide pipe 11 may be further provided with a first packing 14, and in this embodiment, the first packing 14 is mounted on the guide surface 13. By arranging the first sealing ring 14, the sealing performance of the joint of the water guide pipe 11 and the pipeline 200 to be cleaned can be further improved, and water is prevented from overflowing from the joint of the water guide pipe 11 and the pipeline 200 to be cleaned. The first sealing ring 14 is mounted in a manner known in the art and will not be described herein for brevity.

An interface channel 17 is formed in the joint part 16 in a penetrating manner, the interface channel 17 is communicated with the water guide channel 12, and the interface channel 17 is used for being detachably connected with a high-pressure water gun (not shown). In the present embodiment, the nozzle of the high-pressure water gun can be detachably inserted into the interface channel 17. The shape of interface channel 17 can design according to the nozzle shape of high-pressure squirt to laminate with the nozzle of high-pressure squirt better, reduce the emergence of the phenomenon of leaking. The inner wall of interface channel 17 can install second sealing washer 18, through the setting of second sealing washer 18, can further improve the leakproofness of joint portion 16 and high-pressure squirt nozzle junction, prevents that water from spilling over from the junction of joint portion 16 and high-pressure squirt nozzle.

The washing brush 2 is intended to be placed in a conduit 200 to be cleaned, and includes a holder 20 and bristles 25. The fixing base 20 is substantially cylindrical and includes an end plate 21 and a circumferential wall 22 surrounding the end plate 21 and vertically connected to the end plate 21, and the end plate 21 and the circumferential wall 22 together define an inlet chamber 23 having an opening. In the present embodiment, a circular arc guiding end surface 24 is further convexly provided on a side of the end plate 21 facing away from the water inlet cavity 23, so as to facilitate the insertion of the fixing base 20 into the pipeline 200 to be cleaned. The bristles 25 are mounted on the outer surface of the circumferential wall 22, in this embodiment the bristles 25 are uniformly fixed to the outer surface of the circumferential wall 22. Water sprayed from a high-pressure water gun can be sprayed into the pipeline 200 to be cleaned through the water guide channel 12 and enter the water inlet cavity 23, so as to further push the end plate 21 to drive the cleaning brush 2 to move along the pipeline 200 to be cleaned, and in the process that the cleaning brush 2 moves along the pipeline 200 to be cleaned, the bristles 25 arranged on the circumferential wall 22 of the fixed seat 20 can brush the inner wall of the pipeline 200, so that the inner wall of the pipeline 200 can be better cleaned.

The pipeline cleaning device comprises the water guide connector 1 and the cleaning brush 2, when the pipeline cleaning device is used, the cleaning brush 2 is arranged in one end of a pipeline 200 to be cleaned, then the water guide pipe 11 of the water guide connector 1 is connected with the pipeline 200 to be cleaned, and the high-pressure water gun is connected to the interface channel 17 of the water guide connector 1. In use, water sprayed from a high pressure water gun can be sprayed into the pipe 200 to be cleaned via the water guide channel 12 and enter the water inlet cavity 23, and then the end plate 21 is pushed to drive the cleaning brush 2 to move along the pipe 200 to be cleaned until the cleaning brush 2 is separated from the other end of the pipe 200. In the process that the cleaning brush 2 moves along the pipeline 200 to be cleaned, the bristles 25 arranged on the circumferential wall 22 of the fixed seat 20 can brush the inner wall of the pipeline 200, so that the inner wall of the pipeline 200 with a long length can be better cleaned, and the inner wall of the pipeline 200 can be cleaned more cleanly.

Example 2

Referring to fig. 4 to 6 together, a second embodiment of the present invention provides a pipe cleaning apparatus having substantially the same structure as the pipe cleaning apparatus of the first embodiment, and including a water introduction adapter 1 and a cleaning brush 2.

The water introduction joint 1 includes a water introduction pipe 11 and a joint portion 16 connected to one end of the water introduction pipe 11. The water guide pipe 11 is used for being detachably connected with a pipeline 200 to be cleaned, and a water guide channel 12 is arranged in the water guide pipe 11 in a penetrating manner; the structure of the joint portion 16 is the same as that of the first embodiment, and will not be described herein for brevity. The present embodiment differs from the first embodiment in that: the water guide channel 12 of the present embodiment is further provided with a spiral deflector 19, and specifically, the spiral deflector 19 may be fixedly connected to the water guide pipe 11 by welding or bonding. The spiral guide plate 19 is provided to eject water passing through the water guide passage 12 in a spiral shape.

The washing brush 2 is adapted to be placed in a pipe 200 to be washed, and includes a holder 20 and bristles 25. The fixing base 20 is substantially cylindrical and includes an end plate 21 and a circumferential wall 22 surrounding the end plate 21 and vertically connected to the end plate 21, and the end plate 21 and the circumferential wall 22 together define an inlet chamber 23 having an opening. In the present embodiment, the side of the end plate 21 facing away from the water inlet chamber 23 is further provided with a circular arc guiding end surface 24 to facilitate the insertion of the fixing base 20 into the pipeline 200 to be cleaned. The bristles 25 are mounted on the outer surface of the circumferential wall 22. The difference from the first embodiment is that in this embodiment, the washing brush 2 further includes an S-shaped flow guide plate 26, the S-shaped flow guide plate 26 is installed at the water inlet chamber 23, opposite ends of the S-shaped flow guide plate 26 are connected with the inner surface of the circumferential wall 22, and one side of the S-shaped flow guide plate 26 is connected with the end plate 21; in the present embodiment, the side of the S-shaped baffle 26 away from the end plate 21 is protruded out of the water inlet cavity 23.

In the pipe cleaning apparatus of the present embodiment, the cleaning brush 2 further includes an S-shaped guide plate 26, the spiral guide plate 19 is installed in the water guiding pipe 11, so that the water passing through the water guiding channel 12 is spirally sprayed, under the action of inertia, the water flow sprayed from the high pressure water gun is continuously spirally sprayed in the pipe 200 to be cleaned, the water flow sprayed spirally has a component force parallel to the radial direction of the pipe 200 to be cleaned and a component force parallel to the axial direction of the pipe 200 to be cleaned, when the water flow is sprayed onto the fixing base 20, the component force parallel to the axial direction of the pipe 200 to be cleaned can drive the cleaning brush 2 to move along the pipe 200 to be cleaned by pushing the end plate 21, the inner wall of the pipe 200 is cleaned by the brush bristles 25 during the movement along the pipe 200, and at the same time, the component force parallel to the radial direction of the pipe 200 to be cleaned can push the S-shaped guide plate 26 to drive the cleaning brush 2 to rotate around the central axis of the pipe 200 to be cleaned, to further enhance the cleaning effect. In addition, compared with the prior art that the water flow sprayed forwards is adjusted to be sprayed spirally, the component force which is parallel to the radial direction of the pipeline 200 to be cleaned can also improve the impact force of the water flow on the inner wall of the pipeline 200, and the washing effect of the water flow on the inner wall of the pipeline 200 can be further improved. Further, the side of the S-shaped deflector 26 remote from the end plate 21 is protruded out of the water inlet chamber 23, so that the S-shaped deflector 26 can be more easily brought into contact with the water flow, and the rotation of the washing brush 2 can be more smoothly performed.

Example 3

Referring to fig. 7, a third embodiment of the present invention provides a pipe cleaning apparatus having substantially the same structure as the pipe cleaning apparatus of the second embodiment, and including a water introduction joint 1 and a washing brush 2.

The washing brush 2 is adapted to be placed in a pipe 200 to be washed, and includes a holder 20 and bristles 25. The fixing base 20 is substantially cylindrical and includes an end plate 21 and a circumferential wall 22 surrounding the end plate 21 and vertically connected to the end plate 21, and the end plate 21 and the circumferential wall 22 together define an inlet chamber 23 having an opening. In the present embodiment, the side of the end plate 21 facing away from the water inlet chamber 23 is further provided with a circular arc guiding end surface 24 to facilitate the insertion of the fixing base 20 into the pipeline 200 to be cleaned. The bristles 25 are mounted on the outer surface of the circumferential wall 22. The cleaning brush 2 further comprises an S-shaped guide plate 26, the S-shaped guide plate 26 is arranged at the water inlet cavity 23, two opposite ends of the S-shaped guide plate 26 are connected with the inner surface of the circumferential wall 22, and one side of the S-shaped guide plate 26 is connected with the end plate 21; in the present embodiment, the side of the S-shaped baffle 26 away from the end plate 21 is protruded out of the water inlet cavity 23.

The water introduction joint 1 includes a water introduction pipe 11 and a joint portion 16 connected to one end of the water introduction pipe 11, and the structure of the joint portion 16 is the same as that of the first embodiment, except for the structure of the water introduction pipe 11. In the present embodiment, the water guide passage 12 of the water guide pipe 11 is formed in a spiral shape so that water passing through the water guide passage 12 is ejected in a spiral shape.

In the pipe cleaning device according to the present embodiment, the cleaning brush 2 further includes the S-shaped guide plate 26, the water guide channel 12 is in a spiral shape, so that the water passing through the water guide channel 12 is ejected in a spiral shape, and the water flow ejected in the spiral shape can not only push the cleaning brush 2 to move along the pipe 200 to be cleaned, but also cooperate with the S-shaped guide plate 26 to drive the cleaning brush 2 to rotate by taking the central axis of the pipe 200 to be cleaned as the rotation center, thereby further improving the cleaning effect.

Example 4

Referring to fig. 8 to 10 together, a fourth embodiment of the present invention provides a pipe cleaning apparatus having substantially the same structure as the pipe cleaning apparatus of the second embodiment, and including a water introduction adapter 1 and a washing brush 2.

The structure of the water leading joint 1 is the same as that of the second embodiment, and is not described herein for brevity. The washing brush 2 is adapted to be placed in a pipe 200 to be washed, and includes a holder 20 and bristles 25. The fixing base 20 is substantially cylindrical and includes an end plate 21 and a circumferential wall 22 surrounding the end plate 21 and vertically connected to the end plate 21, and the end plate 21 and the circumferential wall 22 together define an inlet chamber 23 having an opening. In the present embodiment, the side of the end plate 21 facing away from the water inlet chamber 23 is further provided with a circular arc guiding end surface 24 to facilitate the insertion of the fixing base 20 into the pipeline 200 to be cleaned. The bristles 25 are mounted on the outer surface of the circumferential wall 22. The difference from the second embodiment is in the manner of attachment of the bristles 25 to the circumferential wall 22: in the present embodiment, the brush 25 is detachably connected to the circumferential wall 22 through the rubber ring 27, specifically: the brush bristles 25 are fixed on the outer circumferential wall of a rubber ring 27, and the rubber ring 27 is sleeved outside the circumferential wall 22 of the fixed seat 20 so as to detachably connect the brush bristles 25 and the fixed seat 20 together. The bristles 25 can be conveniently replaced under the condition that the bristles 25 are aged and the like by detachably connecting the bristles 25 with the fixed seat 20, so that the cost is further saved; it also allows the user to replace bristles 25 of different stiffness to further improve cleaning and avoid damaging the conduit 200; in addition, by replacing the rubber ring 27 with different thickness, the outer diameter of the cleaning brush can be adjusted to be suitable for cleaning of the pipes 200 with different inner diameters.

In this embodiment, the outer surface of the circumferential wall 22 is further provided with a positioning groove 28, the inner surface of the rubber ring 27 is provided with a positioning protrusion 29, and the positioning protrusion 29 is inserted into the positioning groove 28 to position the rubber ring 27, so as to prevent the rubber ring 27 from moving freely relative to the fixing base 20.

It will be understood that the washing brush 2 is dimensioned according to the actual requirements, which belong to the prior art and will not be described herein for the sake of brevity. In particular, the overall length L of the fixed base 20 is preferably greater than the inner diameter of the pipe 200 to be cleaned, so that the cleaning brush is not easily inclined by the impact of water flow, and the bristles 25 are always kept in contact with the inner wall of the pipe 200.

The above description is intended to describe in detail the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the claims of the present invention, and all equivalent changes and modifications made within the technical spirit of the present invention should fall within the scope of the claims of the present invention.

Claims

1. The pipeline cleaning device is characterized by comprising a water guide joint (1) and a cleaning brush (2), wherein the water guide joint (1) comprises a water guide pipe (11) and a joint part (16) connected to one end of the water guide pipe (11), the water guide pipe (11) is detachably connected with a pipeline (200) to be cleaned, and a water guide channel (12) is arranged in the water guide pipe (11) in a penetrating manner; an interface channel (17) is arranged in the joint part (16) in a penetrating way, the interface channel (17) is communicated with the water guide channel (12), and the interface channel (17) is used for being detachably connected with a high-pressure water gun; cleaning brush (2) are arranged in waiting to wash pipeline (200), cleaning brush (2) are including fixing base (20) and brush hair (25), fixing base (20) include end plate (21) and encircle locate end plate (21) periphery and with end plate (21) vertically connected's circumference wall (22), end plate (21) and circumference wall (22) enclose into one jointly and have open-ended intake antrum (23), brush hair (25) are installed on the surface of circumference wall (22) and can with wait to wash the contact of pipeline (200) inner wall; water sprayed from a high-pressure water gun can be sprayed into the pipeline (200) to be cleaned through the water guide channel (12) and enters the water inlet cavity (23), and then the end plate (21) is pushed to drive the cleaning brush (2) to move along the pipeline (200) to be cleaned.

2. The pipe cleaning device according to claim 1, wherein the cleaning brush (2) further comprises an S-shaped flow guide plate (26), the S-shaped flow guide plate (26) is installed at the water inlet chamber (23), opposite ends of the S-shaped flow guide plate (26) are connected with the inner surface of the circumferential wall (22), and one side of the S-shaped flow guide plate (26) is connected with the end plate (21); a spiral guide plate (19) is arranged in the water guide pipe (11) so that water passing through the water guide channel (12) is sprayed out spirally.

3. The pipe cleaning device according to claim 1, wherein the cleaning brush (2) further comprises an S-shaped flow guide plate (26), the S-shaped flow guide plate (26) is installed at the water inlet chamber (23), opposite ends of the S-shaped flow guide plate (26) are connected with the inner surface of the circumferential wall (22), and one side of the S-shaped flow guide plate (26) is connected with the end plate (21); the water guide channel (12) is spiral, so that water passing through the water guide channel (12) is spirally sprayed.

4. A pipe cleaning device according to claim 2 or 3, characterised in that the side of the S-shaped baffle (26) remote from the end plate (21) projects outside the inlet chamber (23).

5. A pipe cleaning device according to claim 1, wherein said bristles (25) are uniformly fixed to the outer surface of the circumferential wall (22).

6. The pipe cleaning device according to claim 1, wherein the brush staples (25) are fixed on the outer circumferential wall of a rubber ring (27), and the rubber ring (27) is sleeved outside the circumferential wall (22) of the fixed seat (20) so as to detachably connect the brush staples (25) and the fixed seat (20).

7. The pipe cleaning device according to claim 6, characterized in that the outer surface of the circumferential wall (22) is provided with positioning grooves (28), the inner surface of the rubber ring (27) is provided with positioning projections (29), and the positioning projections (29) are inserted into the positioning grooves (28) to position the rubber ring (27).

8. The pipe cleaning device according to claim 1, characterized in that the side of the end plate (21) facing away from the inlet chamber (23) is further provided with a rounded guide end surface (24).

9. The pipe cleaning device according to claim 1, wherein the outer peripheral wall of the water guide pipe (11) is further provided with an inclined guide surface (13), the guide surface (13) is arranged so that the cross section of the water guide pipe (11) becomes gradually smaller in a direction away from the joint portion (16), and the guide surface (13) is provided with the first sealing ring (14).

10. A pipe cleaning device according to claim 1, characterised in that the interface passage (17) is fitted with a second sealing ring (18).