Pipeline cleaning device

Abstract

The utility model relates to the field of pipeline cleaning, and mainly discloses a pipeline cleaning device which comprises a positioning mechanism and a cleaning mechanism, the positioning mechanism comprises a long cylinder and a short cylinder which are connected with each other, a top cover is integrally arranged at one end of the long cylinder far away from the short cylinder, and a sealing plate is fixedly mounted at one end of the short cylinder far away from the long cylinder. The end, close to the short cylinder, of the cleaning mechanism is rotationally connected with the sealing plate. The positioning mechanism can be adjusted according to the size of the inner diameter of the pipeline, the first roller and the second roller can abut against the inner wall of the pipeline all the time, the overall stability is ensured, synchronous adjustment of the first roller and the second roller can be achieved only through a single motor, cost is saved, and the production efficiency is improved. In addition, the arranged cleaning mechanism can enable the scraping plate to abut against the inner wall of the pipeline all the time according to the inner diameter of the pipeline, and due to hinged installation of the scraping plate, the effective cleaning effect can be achieved even if the front pipe diameter and the rear pipe diameter of the inner wall of the pipeline are different or the inner wall of the pipeline is uneven.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline cleaning field, specifically, relate to a pipeline cleaning device. BACKGROUND

[0002] The pipeline is connected with the valve and so on for conveying gas, liquid or fluid with solid particles. In order to ensure that the pipeline can be used for a long time, the inside of the pipeline is cleaned regularly, and the cleaning of the inside of the pipeline is different from the cleaning of the outer wall. Generally, a cleaning appliance capable of extending into the inner wall of the pipeline is needed. The traditional cleaning generally adopts a cleaning roller capable of rolling on the inner wall of the pipeline. In this way, the inner wall of the pipeline in the area can be cleaned when the roller rolls a circle. However, the cleaning efficiency is relatively low, and the support operation of the roller is basically held by the cleaning worker, which is relatively laborious and is not conducive to long-term cleaning operation. At the same time, the handheld stability is also relatively low.

[0003] For the problems in the related art, no effective solution has been proposed so far. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a pipeline cleaning device to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme.

[0006] A pipeline cleaning device, comprising a positioning mechanism and a cleaning mechanism, the positioning mechanism and the cleaning mechanism are arranged in line, the positioning mechanism comprises a long barrel and a short barrel connected with each other, the cleaning mechanism is installed at the end of the short barrel away from the long barrel, the end of the long barrel away from the short barrel is integrally provided with a top cover, the end of the short barrel away from the long barrel is fixedly installed with a sealing plate, the end of the cleaning mechanism close to the short barrel is rotatably connected with the sealing plate, a first slot is formed on the outer wall of the long barrel and arranged along the length direction of the long barrel, a first fixed plate is fixedly installed in the inside of the long barrel, the end of the first fixed plate away from the center is arranged outside the first slot, a first adjusting plate is arranged in the inside of the long barrel and parallel to the first fixed plate, the end of the first adjusting plate away from the center is slidably arranged in the first slot, the end of the first fixed plate outside the first slot is fixedly installed with a first hinge seat, the end of the first adjusting plate outside the first slot is fixedly installed with a second hinge seat, a first inclined strut is hingedly installed on the first hinge seat, a first roller is installed at the end of the first inclined strut away from the first hinge seat, a first connecting rod is hingedly installed on the second hinge seat, and the end of the first connecting rod away from the second hinge seat is hingedly connected to the first inclined strut.

[0007] Further, the first fixed plate is fixedly installed with a first motor at the middle of the end away from the first adjusting plate, and the output shaft end of the first motor penetrates through the first fixed plate and is fixedly installed with a first lead screw.

[0008] Further, the short cylinder is fixedly installed with a partition plate at the joint with the long cylinder, the inside of the short cylinder is fixedly installed with a second fixed plate, and a through hole is further formed in the side wall of the short cylinder, the end of the second fixed plate away from the center penetrates through the through hole, and the end of the second fixed plate is further fixedly installed with a third hinged seat, the third hinged seat is hingedly installed with a second inclined support rod, the side outer wall of the second inclined support rod towards the first inclined support rod is fixedly installed with a hinged lug, the hinged lug is hingedly installed with a linkage rod, the end of the linkage rod away from the hinged lug is hingedly connected to the oppositely arranged first inclined support rod, and the linkage rod is arranged along the length direction of the long cylinder, and the end of the second inclined support rod away from the third hinged seat is installed with a second roller.

[0009] Further, the outer wall of the long cylinder is formed with a first observation hole, the outer wall of the short cylinder is formed with a second observation hole, the center of the second fixed plate is fixedly installed with a fixed sleeve, the center of the end of the partition plate towards the short cylinder is fixedly installed with a fixed rod, and the fixed sleeve is fixedly installed outside the fixed rod.

[0010] Further, the cleaning mechanism comprises an extension cylinder, the end of the extension cylinder towards the short cylinder is fixedly installed with an assembling plate, the end face of the assembling plate towards the short cylinder is fixedly installed with a mounting seat, the middle of the end of the sealing plate towards the extension cylinder is fixedly installed with a connecting seat, and the connecting seat is rotationally connected with the mounting seat, the end face of the assembling plate arranged inside the extension cylinder is installed with a second motor, the output shaft of the second motor penetrates through the assembling plate and is fixedly connected with the connecting seat, and the end of the extension cylinder away from the short cylinder is fixedly installed with an end plate.

[0011] Further, the outer wall of the extension cylinder is formed with a second slot-shaped hole arranged along the length direction thereof, the inside of the extension cylinder is fixedly installed with a third fixed plate, the end of the third fixed plate away from the center penetrates out of the second slot-shaped hole, the inside of the extension cylinder is further provided with a second adjusting plate, the end of the second adjusting plate away from the center is slidingly arranged in the second slot-shaped hole, and the end of the third fixed plate and the end of the second adjusting plate away from the center are both fixedly installed with a fourth hinged seat, the fourth hinged seat away from the second adjusting plate is hingedly installed with a third inclined support rod, the end of the third inclined support rod away from the fourth hinged seat is hingedly installed with a scraper, the fourth hinged seat away from the third fixed plate is hingedly installed with a second connecting rod, and the end of the second connecting rod away from the fourth hinged seat is hingedly connected to the third inclined support rod.

[0012] Further, a guide hole is formed in the fourth hinge seat, a guide rod is arranged through the guide hole, a protrusion is fixedly installed on the outer wall of the extension cylinder, the protrusion is located outside the two ends of the second slot, and the end of the guide rod is fixedly installed on the protrusion.

[0013] Further, a third motor is fixedly installed at the middle of the end of the third fixed plate away from the second adjusting plate, a second screw rod is fixedly connected to the end of the output shaft of the third motor, a second screw sleeve is arranged through the middle of the second adjusting plate, and the second screw sleeve is screwed on the outside of the second screw rod.

[0014] Compared with the prior art, the positioning mechanism provided by the utility model can be adjusted according to the size of the pipe inner diameter, the first roller and the second roller can always be tightly abutted against the pipe inner wall, the stability of the whole is ensured, the adjustment of the first roller and the second roller only needs to realize synchronous adjustment through a single motor, cost is saved, and the cleaning mechanism provided can also make the scraper always abut against the pipe inner wall according to the pipe inner diameter, and the hinged installation of the scraper can realize effective cleaning effect even if the front and back pipe diameters of the pipe inner wall are not the same or the pipe inner wall is not flat. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can also be obtained according to these drawings without creative labor for those skilled in the art.

[0016] Figure 1 It is a structure schematic view of a pipe cleaning device according to an embodiment of the utility model;

[0017] Figure 2 It is a structure schematic view of a positioning mechanism in a pipe cleaning device according to an embodiment of the utility model;

[0018] Figure 3 It is a connection structure schematic view of a long cylinder and a short cylinder in a pipe cleaning device according to an embodiment of the utility model;

[0019] Figure 4 It is a structure schematic view of a first fixed plate and a first adjusting plate in a pipe cleaning device according to an embodiment of the utility model;

[0020] Figure 5 It is a structure schematic view of a cleaning mechanism in a pipe cleaning device according to an embodiment of the utility model;

[0021] Figure 6is a structure schematic view of an extension cylinder in a pipeline cleaning device according to an embodiment of the utility model;

[0022] Figure 7 is a structure schematic view of a third fixed plate and a second adjusting plate in a pipeline cleaning device according to an embodiment of the utility model.

[0023] Reference signs:

[0024] 1, positioning mechanism, 2, cleaning mechanism, 3, long cylinder, 4, short cylinder, 5, top cover, 6, sealing plate, 7, first observation port, 8, first bar hole, 9, first fixed plate, 10, first adjusting plate, 11, first hinged seat, 12, second hinged seat, 13, first inclined strut, 14, first roller, 15, first connecting rod, 16, first motor, 17, first screw rod, 18, first screw sleeve, 19, second observation port, 20, partition plate, 21, through hole, 22, second fixed plate, 23, fixed sleeve, 24, third hinged seat, 25, second inclined strut, 26, hinged lug, 27, linkage rod, 28, second roller, 29, connecting seat, 30, extension cylinder, 31, assembly plate, 32, mounting seat, 33, second motor, 34, end plate, 35, second bar hole, 36, protruding block, 37, guide rod, 38, third fixed plate, 39, second adjusting plate, 40, fourth hinged seat, 41, guide hole, 42, third inclined strut, 43, second connecting rod, 44, scraper, 45, third motor, 46, second screw rod, 47, second screw sleeve. DETAILED DESCRIPTION

[0025] Next, the utility model is further described in combination with the drawings and specific embodiments:

[0026] Please refer to Figures 1-7 A pipeline cleaning device according to an embodiment of the utility model, including positioning mechanism 1 and cleaning mechanism 2, positioning mechanism 1 and cleaning mechanism 2 are arranged in line, positioning mechanism 1 includes long cylinder 3 and short cylinder 4 connected with each other, cleaning mechanism 2 is installed at the end of short cylinder 4 far from long cylinder 3, the end of long cylinder 3 far from short cylinder 4 is integrally provided with top cover 5, the end of short cylinder 4 far from long cylinder 3 is fixedly installed with sealing plate 6, and the end of cleaning mechanism 2 close to short cylinder 4 is rotatably connected with sealing plate 6. The positioning mechanism 1 is used to realize positioning operation in the pipeline to be cleaned, then the cleaning mechanism 2 is also positioned in the pipeline, and then the cleaning mechanism 2 is started to rotate relative to the sealing plate 6, so that the cleaning operation on the inner wall of the pipeline can be realized.

[0027] The outer wall of the long cylinder 3 is provided with a first strip-shaped hole 8 arranged along the length direction thereof, and the inside of the long cylinder 3 is fixedly provided with a first fixed plate 9, the end of the first fixed plate 9 away from the center is arranged through the first strip-shaped hole 8, and the inside of the long cylinder 3 is further provided with a first adjusting plate 10 arranged in parallel with the first fixed plate 9, the end of the first adjusting plate 10 away from the center is slidingly arranged in the first strip-shaped hole 8, and the end of the first fixed plate 9 arranged through the first strip-shaped hole 8 is fixedly provided with a first hinge seat 11, the end of the first adjusting plate 10 arranged through the first strip-shaped hole 8 is fixedly provided with a second hinge seat 12, the first hinge seat 11 is hingedly provided with a first inclined support rod 13, and the end of the first inclined support rod 13 away from the first hinge seat 11 is provided with a first roller 14, the second hinge seat 12 is hingedly provided with a first connecting rod 15, and the end of the first connecting rod 15 away from the second hinge seat 12 is hingedly arranged on the first inclined support rod 13. By changing the position of the first adjusting plate 10, the first adjusting plate 10 can drive the second hinge seat 12 to move, the movement of the second hinge seat 12 can change the angle of the first inclined support rod 13 through the first connecting rod 15, and then the position of the first roller 14 at the end of the first inclined support rod 13 is changed, so that the first roller 14 can always tightly abut against the inner wall of the pipeline according to the size of the inner diameter of the pipeline, and the effective positioning of the positioning mechanism 1 on the cleaning mechanism 2 is ensured.

[0028] The middle of the end of the first fixed plate 9 away from the first adjusting plate 10 is fixedly provided with a first motor 16, the output shaft end of the first motor 16 penetrates through the first fixed plate 9 and is fixedly provided with a first lead screw 17, and the middle of the first adjusting plate 10 is provided with a first lead screw sleeve 18 penetratingly arranged, and the first lead screw 17 is screwed with the first lead screw sleeve 18. When the first motor 16 is started, the first lead screw 17 can be driven to rotate synchronously, and the rotation of the first lead screw 17 can drive the first adjusting plate 10 to move through the first lead screw sleeve 18.

[0029] The partition plate 20 is fixedly arranged at the connecting position of the short cylinder 4 and the long cylinder 3, the inside of the short cylinder 4 is fixedly provided with a second fixed plate 22, and the side wall of the short cylinder 4 is further provided with a through hole 21, the end of the second fixed plate 22 away from the center is arranged through the through hole 21, and the end of the second fixed plate 22 is further fixedly provided with a third hinge seat 24, the third hinge seat 24 is hingedly provided with a second inclined support rod 25, the side wall of the second inclined support rod 25 facing the first inclined support rod 13 is fixedly provided with a hinge lug 26, the hinge lug 26 is hingedly provided with a linkage rod 27, the end of the linkage rod 27 away from the hinge lug 26 is hingedly arranged on the oppositely arranged first inclined support rod 13, and the linkage rod 27 is arranged along the length direction of the long cylinder 3, and the end of the second inclined support rod 25 away from the third hinge seat 24 is provided with a second roller 28. The second roller 28 can cooperate with the first roller 14 to increase the contact area with the inner wall of the pipeline, thereby increasing the overall stability of the positioning mechanism 1 and ensuring the stability of the cleaning mechanism 2 during operation.

[0030] The outer wall of the long barrel 3 is provided with a first observation port 7, the outer wall of the short barrel 4 is provided with a second observation port 19, the center of the second fixed plate 22 is fixedly provided with a fixed sleeve 23, the center of the end surface of the partition plate 20 arranged towards the short barrel 4 is fixedly provided with a fixed rod (not shown in the figure), and the fixed sleeve 23 is fixedly installed outside the fixed rod. The first observation port 7 and the second observation port 19 can facilitate the maintenance and repair of the inside of the long barrel 3 and the short barrel 4.

[0031] The cleaning mechanism 2 comprises an extension barrel 30, the end of the extension barrel 30 arranged towards the short barrel 4 is fixedly provided with an assembly plate 31, the end surface of the assembly plate 31 arranged towards the short barrel 4 is fixedly provided with a mounting seat 32, the middle of the end of the sealing plate 6 arranged towards the extension barrel 30 is fixedly provided with a connecting seat 29, and the connecting seat 29 is rotationally connected with the mounting seat 32, the end surface of the assembly plate 31 arranged towards the inside of the extension barrel 30 is provided with a second motor 33, the output shaft of the second motor 33 penetrates through the assembly plate 31 and is fixedly connected with the connecting seat 29, and the end of the extension barrel 30 away from the short barrel 4 is fixedly provided with an end plate 34. When the second motor 33 is started, the connecting seat 29 can be driven to rotate, the connecting seat 29 is fixedly installed on the sealing plate 6, the sealing plate 6 is positioned by the short barrel 4 and the long barrel 3, and the first roller 14 and the second roller 28, so that the rotation of the extension barrel 30 is finally realized.

[0032] The outer wall of the extension barrel 30 is provided with a second strip-shaped hole 35 arranged along the length direction thereof, the inside of the extension barrel 30 is fixedly provided with a third fixed plate 38, the end of the third fixed plate 38 away from the center penetrates out of the second strip-shaped hole 35, the inside of the extension barrel 30 is further provided with a second adjusting plate 39, the end of the second adjusting plate 39 away from the center is slidingly arranged in the second strip-shaped hole 35, the end of the third fixed plate 38 and the end of the second adjusting plate 39 away from the center are both fixedly provided with a fourth hinge seat 40, the fourth hinge seat 40 arranged away from the second adjusting plate 39 is hingedly provided with a third inclined supporting rod 42, one end of the third inclined supporting rod 42 away from the fourth hinge seat 40 is hingedly provided with a scraper 44, the fourth hinge seat 40 arranged away from the third fixed plate 38 is hingedly provided with a second connecting rod 43, one end of the second connecting rod 43 away from the fourth hinge seat 40 is hingedly arranged on the third inclined supporting rod 42. Similarly, when the second adjusting plate 39 moves, the angle of the third inclined supporting rod 42 can be changed through the second connecting rod 43, so as to change the position of the scraper 44, so that the scraper 44 can always tightly abut against the inner wall of the pipeline, and because the scraper 44 and the third inclined supporting rod 42 are hingedly arranged, even if the inner wall of the pipeline to be cleaned is not flat, the scraper 44 can also realize automatic adjustment.

[0033] The fourth hinged seat 40 is provided with a guide hole 41, a guide rod 37 is arranged through the guide hole 41, a protrusion 36 is fixedly arranged on the outer wall of the extension cylinder 30, the protrusion 36 is located on the outer side of the two ends of the second strip-shaped hole 35, and the end of the guide rod 37 is fixedly arranged on the protrusion 36.

[0034] The third fixed plate 38 is fixedly arranged with a third motor 45 at the middle of one end away from the second adjusting plate 39, the output shaft end of the third motor 45 is fixedly connected with a second screw rod 46, and the middle of the second adjusting plate 39 is arranged through a second screw sleeve 47, and the second screw sleeve 47 is screwed on the outside of the second screw rod 46.

[0035] According to the above scheme of the utility model, the positioning mechanism 1 arranged in the utility model can be adjusted according to the size of the inner diameter of the pipeline, so that the first roller 14 and the second roller 28 can always abut against the inner wall of the pipeline, the stability of the whole is ensured, the adjustment of the first roller 14 and the second roller 28 only needs to realize synchronous adjustment through a single motor, cost is saved, and the cleaning mechanism 2 arranged in the utility model can also make the scraper 44 always abut against the inner wall of the pipeline according to the size of the inner diameter of the pipeline, and the hinged installation of the scraper 44 can realize effective cleaning effect even if the front and back diameters of the inner wall of the pipeline are not the same or the inner wall of the pipeline is not flat.

[0036] In the utility model, unless another definite provision and limitation, the terms "mount", "arrange", "connect", "fix", "screw" and other terms should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or be integrated, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication or interaction relationship between two elements, unless another definite limitation, the above terms in the utility model can be understood according to the specific meaning of the specific situation for the ordinary skilled in the art.

[0037] It should be noted that, in this paper, such as first and second relationship terms such as only to distinguish one entity or operation from another entity or operation, and does not necessarily require or imply that there is any such actual relationship or order between the entities or operations.And, the term "includes", "contains" or any other variant is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or includes elements inherent in such process, method, article or equipment.

[0038] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0039] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are only by way of example and are not intended to limit the scope of the application, which is defined in the appended claims and their equivalents.

Claims

1. A pipe cleaning device comprising a positioning mechanism (1) and a cleaning mechanism (2), characterized in that, The positioning mechanism (1) and the cleaning mechanism (2) are arranged in line, the positioning mechanism (1) comprises a long barrel (3) and a short barrel (4) connected with each other, the cleaning mechanism (2) is installed at the end of the short barrel (4) away from the long barrel (3), the long barrel (3) is integrally provided with a top cover (5) at the end away from the short barrel (4), the short barrel (4) is fixedly installed with an enclosing plate (6) at the end away from the long barrel (3), the cleaning mechanism (2) is rotatably connected with the enclosing plate (6) at the end close to the short barrel (4), a first strip-shaped hole (8) is formed in the outer wall of the long barrel (3) and extends along the length direction of the long barrel (3), a first fixed plate (9) is fixedly installed in the long barrel (3), the end of the first fixed plate (9) away from the center is arranged to pass through the first strip-shaped hole (8), a first adjusting plate (10) is arranged in the long barrel (3) and is parallel to the first fixed plate (9), the end of the first adjusting plate (10) away from the center is arranged to slide in the first strip-shaped hole (8), a first hinge seat (11) is fixedly installed at the end of the first fixed plate (9) passing through the first strip-shaped hole (8), a second hinge seat (12) is fixedly installed at the end of the first adjusting plate (10) passing through the first strip-shaped hole (8), a first inclined support rod (13) is hingedly installed on the first hinge seat (11), a first roller (14) is installed at the end of the first inclined support rod (13) away from the first hinge seat (11), a first connecting rod (15) is hingedly installed on the second hinge seat (12), and the end of the first connecting rod (15) away from the second hinge seat (12) is hingedly connected to the first inclined support rod (13).

2. A pipe cleaning device according to claim 1, wherein, A first motor (16) is fixedly installed at the middle of the end of the first fixed plate (9) away from the first adjusting plate (10), the output shaft end of the first motor (16) penetrates through the first fixed plate (9) and is fixedly installed with a first lead screw (17), a first lead screw sleeve (18) is installed through the middle of the first adjusting plate (10), and the first lead screw (17) is screwed with the first lead screw sleeve (18).

3. A pipe cleaning device according to claim 2, wherein, The short cylinder (4) is fixedly installed with a partition plate (20) at the joint with the long cylinder (3), the inside of the short cylinder (4) is fixedly installed with a second fixed plate (22), a through hole (21) is further formed in the side wall of the short cylinder (4), the end of the second fixed plate (22) away from the center is arranged through the through hole (21), and the end of the second fixed plate (22) is further fixedly installed with a third hinged seat (24), the third hinged seat (24) is hingedly installed with a second inclined support rod (25), the side outer wall of the second inclined support rod (25) towards the first inclined support rod (13) is fixedly installed with a hinged lug (26), the hinged lug (26) is hingedly installed with a linkage rod (27), the end of the linkage rod (27) away from the hinged lug (26) is hingedly arranged on the oppositely arranged first inclined support rod (13), and the linkage rod (27) is arranged along the length direction of the long cylinder (3), and the end of the second inclined support rod (25) away from the third hinged seat (24) is installed with a second roller (28).

4. A pipe cleaning device according to claim 3, wherein, A first observation port (7) is formed in the outer wall of the long cylinder (3), a second observation port (19) is formed in the outer wall of the short cylinder (4), a fixed sleeve (23) is fixedly installed in the center of the second fixed plate (22), and a fixed rod is fixedly installed in the center of the end face of the partition plate (20) towards the short cylinder (4).

5. A pipe cleaning device according to claim 4, wherein, The cleaning mechanism (2) comprises an extension cylinder (30), the end of the extension cylinder (30) towards the short cylinder (4) is fixedly installed with an assembly plate (31), the end face of the assembly plate (31) towards the short cylinder (4) is fixedly installed with a mounting seat (32), the middle of the end of the sealing plate (6) towards the extension cylinder (30) is fixedly installed with a connecting seat (29), the connecting seat (29) and the mounting seat (32) are rotationally connected, the end face of the assembly plate (31) arranged inside the extension cylinder (30) is installed with a second motor (33), the output shaft of the second motor (33) penetrates the assembly plate (31) and is fixedly connected with the connecting seat (29), and the end of the extension cylinder (30) away from the short cylinder (4) is fixedly installed with an end plate (34).

6. A pipe cleaning device according to claim 5, wherein, The outer wall of the extension cylinder (30) is provided with a second strip-shaped hole (35) arranged along the length direction thereof, a third fixed plate (38) is fixedly installed inside the extension cylinder (30), the end portion away from the center of the third fixed plate (38) is arranged to pass through the second strip-shaped hole (35), a second adjusting plate (39) is further arranged inside the extension cylinder (30), the end portion away from the center of the second adjusting plate (39) is slidingly arranged in the second strip-shaped hole (35), the end portions away from the center of the third fixed plate (38) and the second adjusting plate (39) are both fixedly installed with a fourth hinge seat (40), a third inclined support rod (42) is hingedly installed on the fourth hinge seat (40) arranged away from the second adjusting plate (39), a scraper (44) is hingedly installed on one end portion of the third inclined support rod (42) away from the fourth hinge seat (40), a second connecting rod (43) is hingedly installed on the fourth hinge seat (40) arranged away from the third fixed plate (38), and one end portion of the second connecting rod (43) away from the fourth hinge seat (40) is hingedly connected to the third inclined support rod (42).

7. A pipe cleaning device according to claim 6, wherein, A guide hole (41) is arranged on the fourth hinge seat (40), a guide rod (37) is arranged to pass through the guide hole (41), and a protrusion (36) is fixedly installed on the outer wall of the extension cylinder (30), which is located on the outer side of both ends of the second strip-shaped hole (35), and the end portion of the guide rod (37) is fixedly installed on the protrusion (36).

8. A pipe cleaning device according to claim 7, wherein, A third motor (45) is fixedly installed on the middle portion of one end of the third fixed plate (38) away from the second adjusting plate (39), the output shaft end of the third motor (45) is fixedly connected with a second screw rod (46), a second screw sleeve (47) is arranged to pass through the middle portion of the second adjusting plate (39), and the second screw sleeve (47) is screwed on the outside of the second screw rod (46).

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