A dam drainage pipe cleaning device

Abstract

The present invention provides a dam drainage pipe cleaning device. The technical field of pipe cleaning devices includes a driving mechanism arranged at both ends of the dam pipe, the driving mechanism includes two motors with the same rotation direction, and a gear connected to the third rotating shaft at the front of the motor; a clearing pipe, the clearing pipe includes an integrally formed sliding portion and a meshing portion, when the clearing pipe head extends from the other side of the dam pipe, the motor on the other side of the dam meshes with the clearing pipe through the driving gear and completely brings the tail of the clearing pipe out of the dam pipe; a clearing mechanism, the clearing mechanism is fixed at the outer port of the sliding portion; a threaded fixing cap, the threaded fixing cap fixes the clearing mechanism to the outer port of the sliding portion; and also includes a support member, the support member is used to fix the driving mechanism to both sides of the dam pipe. The dam drainage pipe cleaning device is suitable for clearing long pipes such as dams, and has high clearing efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline cleaning devices, and more specifically, to a dam drainage pipeline cleaning device. Background Art

[0002] In water conservancy projects, dams are buildings used to intercept water. Since the pressure on the bottom of the dam is greater than that on the upper part, the dam is generally narrow at the top and wide at the bottom. The upper part of some dams is used for walking, one side is used to block water, and the other side faces the farmland area. Therefore, drainage pipes connecting the two ends will be installed inside to bring water into the farmland.

[0003] Chinese patent application number 201410033959.5 discloses a pipeline dredging device, including a tail support hydraulic positioning seat and a front support hydraulic positioning seat. The front center protrusion of the tail support hydraulic positioning seat is connected to the rear center protrusion of the front support hydraulic positioning seat through a single-acting linear hydraulic cylinder. The front end annular surface of the front support hydraulic positioning seat is tightly connected to the rear end annular surface of a sealing box. A single-acting hydraulic cylinder is arranged on the central axis of the sealing box. The base of the single-acting hydraulic cylinder is tightly connected to the sealing box. The piston end of the single-acting hydraulic cylinder is tightly connected to the base of a servo motor. The servo motor is located inside the sealing box. The output end of the servo motor is connected to the rear end of a coupling. The front end outer annular surface of the coupling is evenly distributed with connecting rods. The front end cover of the sealing box is equipped with an end cover. The center position of the end cover is opened. The inner annular surface of the end cover is installed with a bearing. The rear end outer annular surface of the tool holder is supported on the inner annular surface of the bearing. The front end outer circular surface of the tool holder is evenly distributed with cleaning blades.

[0004] However, the above-mentioned device is pushed into the pipeline by hydraulic equipment. Since the dam pipeline is long, it is difficult for conventional hydraulic equipment to clean the device from one end of the pipeline to the other, resulting in low cleaning efficiency. At the same time, the hydraulic equipment is large in size and difficult to install on the inclined dam slope. Based on this, we propose a drainage pipe cleaning device that can be easily installed on the dam slope. Summary of the invention

[0005] The present invention provides a dam drainage pipe cleaning device to overcome the problem that the length of the existing pipe desilting device entering the pipe is difficult to be applied to the dam drainage pipe.

[0006] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0007] A dam drainage pipe cleaning device,

[0008] It includes a driving mechanism arranged at both ends of the dam pipeline, the driving mechanism includes two motors with the same rotation direction, and a gear connected to a third rotating shaft at the front of the motor;

[0009] The blockage clearing pipe comprises an integrally formed sliding portion and a meshing portion, and a plurality of racks are uniformly reserved along the length direction of the outer wall of the meshing portion. The motor on one side of the dam meshes with the blockage clearing pipe through a driving gear and extends into the dam pipeline. When the blockage clearing pipe head extends from the other side of the dam pipeline, the motor on the other side of the dam meshes with the blockage clearing pipe through a driving gear and completely brings the tail of the blockage clearing pipe out of the dam pipeline.

[0010] A clearing mechanism, the clearing mechanism is fixed to the outer port of the sliding part and is used to remove the pipeline sludge when the clearing pipe is moved out of the pipeline;

[0011] A threaded fixing cap, wherein the threaded fixing cap fixes the clearing mechanism to the outer port of the sliding part;

[0012] Also included are supports for fixing the driving mechanism to both sides of the dam pipeline.

[0013] When the above device is in use, a clearing pipe of appropriate length is selected, and the driving mechanism is set on both sides of the pipeline through the support, so that the motor on one side drives the gear to engage with the meshing part on the clearing pipe to push the clearing pipe into the pipeline. When the sliding part of the clearing pipe is completely moved out of the driving mechanism on this side, the clearing mechanism is fixed to the sliding part. After installation, the driving mechanism on the other side of the dam continues to engage with the extended clearing pipe to allow the clearing mechanism to enter the pipeline until the clearing mechanism is completely moved out of the pipeline from the other side of the pipeline, and the silt removal process is completed. The clearing pipe in the device is selected according to the pipeline size, and the motor drives the gear to engage with the meshing part to push the clearing pipe, so that the longer drainage pipe inside the dam can be cleared, and the clearing efficiency is high.

[0014] Preferably, the support member includes a first lateral support, an inclined support, a connecting rod, a second lateral support and a motor support, wherein:

[0015] The first lateral support is placed on top of the embankment;

[0016] There are two inclined supports, which are installed in accordance with the slope of the dam, and the tops of the two inclined supports are respectively connected to the two ends of the first transverse support;

[0017] Two second transverse supports are provided, and the two second transverse supports are provided on one side of the bottom of the inclined support away from the slope of the dam; connecting rods are fixedly provided at both the front and rear ends of the side wall of the second transverse support close to the inclined support; the other side of the connecting rod is connected to the bottom of the inclined support;

[0018] The motor support is arranged on the second transverse support and is used for fixing the motor.

[0019] Preferably, the two ends of the inclined support are rotatably connected to the first lateral support and the connecting rod respectively, wherein:

[0020] The inclined support on one side of the dam comprises two support rods arranged in parallel, and both ends of one of the support rods are respectively provided with a first rotating shaft for rotatably connecting to the first lateral support and a second rotating shaft for connecting to the connecting rod.

[0021] Preferably, the first lateral support comprises a mounting groove arranged along the length direction of the first lateral support, and the first rotating shaft is slidably installed in the mounting groove.

[0022] Preferably, a guide plate is also installed on the top of the second transverse support, and a sliding groove is provided on the guide plate, and the blockage clearing pipe moves from one side of the sliding groove to the other side.

[0023] Preferably, a protective cover is sleeved on the outside of the gear, and the protective cover is detachably mounted on the motor support.

[0024] Preferably, the blockage clearing pipe also includes a drill bit and a positioning part, and the drill bit is detachably mounted on the outer port of the meshing part; the positioning part is arranged at the outer port of the sliding part, the outer diameter of the positioning part is smaller than the outer diameter of the sliding part, and the inner wall of the opening of the positioning part is provided with an internal thread.

[0025] Preferably, the clearing mechanism comprises a fixed disk, a movable disk and a rubber expansion member; the movable disk is movably sleeved on the sliding portion, the fixed disk is sleeved on the positioning portion, the rubber expansion member is sleeved on the sliding portion, and the rubber expansion member is located between the fixed disk and the movable disk.

[0026] Preferably, the rubber expansion member is a tire.

[0027] Preferably, it further comprises a positioning sleeve, wherein the positioning sleeve is rotatably mounted on the bottom of the second lateral support.

[0028] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0029] 1) The first lateral support, the inclined support and the second lateral support can adapt to dams with different slopes, and at the same time, it is convenient to install the driving mechanisms on both sides on the second lateral support and on both sides of the pipeline;

[0030] 2) The meshing part on the clearing pipe meshes with the gear driven by the motor, and the clearing pipe is first pushed into the pipe mud. When the clearing pipe extends from the other side, the sliding part at the tail of the clearing pipe also completely passes through the driving mechanism. The clearing mechanism is fixed on the sliding part. After it is fixed, the motor on the driving mechanism on the other side works, driving the gear to mesh with the meshing part on the clearing pipe again, allowing the clearing mechanism to enter the mud. During the process, the movable disc will squeeze the tire to expand it to completely fit the inner wall of the pipe, and the inside of the pipe will be cleaned in all directions until the clearing mechanism is completely removed from the other side of the pipe;

[0031] 3) By setting a protective cover, the gear can be wrapped to reduce the risk factor of the device;

[0032] 4) By setting the positioning sleeve, it is convenient to use ground nails to penetrate the positioning sleeve and fix it to the slope of the dam, so that a triangular support is formed under the second lateral support, further improving the stability of the motor installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a front view structural schematic diagram of a dam drainage pipe cleaning device of the present invention;

[0034] Figure 2 This is a schematic diagram of a front cross-sectional structure of a dam drainage pipe cleaning device of the present invention;

[0035] Figure 3 It is a schematic diagram of the structure of a dam drainage pipe cleaning device after the blockage clearing mechanism and the blockage clearing pipe are installed;

[0036] Figure 4 It is a schematic diagram of the internal structure of a clearing mechanism of a dam drainage pipe clearing device of the present invention;

[0037] Figure 5 It is a schematic diagram of a partial three-dimensional structure of a first transverse support of a dam drainage pipe cleaning device according to the present invention;

[0038] Figure 6 It is a schematic diagram of a top view of the structure of an inclined support, a connecting rod and a second lateral support part of a dam drainage pipe cleaning device of the present invention.

[0039] Among them: 1. first lateral support; 101. mounting groove; 2. inclined support; 201. first rotating shaft; 202. second rotating shaft; 3. connecting rod; 4. second lateral support; 5. guide plate; 501. sliding groove; 6. motor support; 7. protective cover; 8. clearing pipe; 801. sliding part; 802. meshing part; 803. drill bit; 804. positioning part; 9. positioning sleeve; 10. motor; 11. gear; 12. third rotating shaft; 13. threaded fixing cap; 14. clearing mechanism; 1401. fixed disk; 1402. movable disk; 1403. rubber expansion member; 15. fixing rod. DETAILED DESCRIPTION

[0040] The drawings are only used for illustrative purposes and should not be construed as limitations on this patent. In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0041] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0043] Spatially relative terms such as "under," "beneath," "below," "under," "above," "above," and the like may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It should be understood that, in addition to the orientations shown in the figures, spatially relative terms also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is flipped, an element or feature described as "under other elements" or "under it" or "under it" will be oriented as being "above" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0044] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" and the like specify the presence of stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. At the same time, the term "and / or" used in this specification includes any and all combinations of the relevant listed items.

[0045] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments. Example

[0046] See also Figure 1-6 , a dam drainage pipe cleaning device,

[0047] It includes support parts for fixing the driving mechanism to both sides of the dam pipe. The shape of the support parts can be designed according to the cross-section of the dam, and is commonly a trapezoid. Therefore, a support part can be designed based on the three upper sides of the trapezoid, so that the support part is inverted on the dam, and the bottoms on both sides of the support part need to be able to fix the driving mechanism.

[0048] It includes a driving mechanism arranged at both ends of the dam pipeline, the driving mechanism includes two motors 10 with the same rotation direction, and a gear 11 connected to a third rotating shaft 12 at the front of the motor 10;

[0049] The clearing pipe 8 includes an integrally formed sliding portion 801 and a meshing portion 802. A plurality of racks are uniformly reserved along the length of the outer wall of the meshing portion 802. The motor 10 on one side of the dam meshes with the clearing pipe 8 through the driving gear 11 and extends into the dam pipeline. When the head of the clearing pipe 8 extends from the other side of the dam pipeline, the motor 10 on the other side of the dam meshes with the clearing pipe 8 through the driving gear 11 and completely brings the tail of the clearing pipe 8 out of the dam pipeline.

[0050] The clearing mechanism 14 is fixed at the outer end of the sliding part 801 and is used to remove the pipeline sludge when the clearing pipe 8 is moved out of the pipeline;

[0051] The outside of the gear 11 is covered with a protective cover 7, which can be detachably mounted on the motor support 6. The protective cover 7 can increase the safety of the device and prevent injuries when the device is running.

[0052] When the gear 11 rotates, it can cooperate with the meshing part 802 on the clearing pipe 8 to allow the clearing pipe 8 to enter the pipeline. When the clearing pipe 8 extends out of the other side of the pipeline, the gear on the driving mechanism on the other side cooperates with the meshing part 802 to completely move the pipeline out of the pipeline from the other side. In the meantime, when the sliding part 801 on the clearing pipe 8 is completely moved out of the first driving mechanism, the clearing mechanism 14 is installed on the sliding part 801 and fixed. Therefore, when the clearing pipe 8 moves again subsequently, the clearing mechanism 14 can clear the pipeline. The moving distance is only limited by the length of the clearing pipe 8. Therefore, by designing the length of the clearing pipe 8, the device can be suitable for longer dam pipelines.

[0053] The threaded fixing cap 13 fixes the clearing mechanism 14 to the outer port of the sliding part 801 . Example

[0054] See also Figure 1-2 The support member includes a first transverse support 1, an inclined support 2, a connecting rod 3, a second transverse support 4 and a motor support 6. The first transverse support 1 is placed on the top of the dam. Two inclined supports 2 are provided. The two inclined supports 2 are installed in accordance with the slope of the dam, and the tops of the two inclined supports 2 are respectively connected to the two ends of the first transverse support 1.

[0055] Two second lateral supports 4 are provided, and the two second lateral supports 4 are arranged on the side of the bottom of the inclined support 2 away from the dam slope; connecting rods 3 are fixedly provided at the front and rear ends of the side walls of the second lateral supports 4 close to the inclined support 2; the other side of the connecting rod 3 is connected to the bottom of the inclined support 2; the motor support 6 is arranged on the second lateral support 4, for fixing the motor 10.

[0056] The two ends of the inclined support 2 are rotatably connected to the first lateral support 1 and the connecting rod 3 respectively. The inclined support 2 on one side of the dam includes two parallel support rods. The two ends of one support rod are respectively provided with a first rotating shaft 201 for rotatably connecting to the first lateral support 1 and a second rotating shaft 202 for rotatably connecting to the connecting rod 3.

[0057] The first lateral support 1 comprises a mounting groove 101 arranged along the length direction of the first lateral support 1 , and the first rotating shaft 201 is slidably mounted in the mounting groove 101 .

[0058] A guide plate 5 is also installed on the top of the second transverse support 4 , and a sliding groove 501 is provided on the guide plate 5 , and the clearing pipe 8 moves from one side of the sliding groove 501 to the other side.

[0059] The difference from the above-mentioned embodiment lies in that, in this embodiment, one end of the inclined support 2 is connected to both ends of the first lateral support 1 through the first rotating shaft 201, and the other end is rotatably connected to the connecting rod 3 through the second rotating shaft 202, so it can adapt to dams of different slopes; at the same time, the first rotating shaft 201 is installed in the mounting groove 101, and the length of the top of the support member can be extended by sliding to adapt to dams of different sizes. This structure allows the support member to be applicable to multiple dams without the need for frequent replacement of the support member.

[0060] The sliding groove 501 on the guide plate 5 is used to limit the clearing pipe 8 to ensure that the clearing pipe 8 always moves in one direction. Example

[0061] See also Figure 3-4 The clearing pipe 8 also includes a drill bit 803 and a positioning portion 804. The drill bit 803 is detachably mounted on the outer port of the meshing portion 802. The positioning portion 804 is arranged at the outer port of the sliding portion 801. The outer diameter of the positioning portion 804 is smaller than the outer diameter of the sliding portion 801. The inner wall of the opening of the positioning portion 804 is provided with an internal thread. The setting of the drill bit 803 can reduce the resistance of the front section, making it easier for the clearing pipe 8 to move forward in the silt.

[0062] The clearing mechanism 14 includes a fixed disk 1401, a movable disk 1402 and a rubber expansion member 1403; the movable disk 1402 is movably sleeved on the sliding part 801, the fixed disk 1401 is sleeved on the positioning part 804, the rubber expansion member 1403 is sleeved on the sliding part 801, and the rubber expansion member 1403 is located between the fixed disk 1401 and the movable disk 1402.

[0063] The rubber expansion member 1403 is a tire.

[0064] A plurality of fixing rods 15 are uniformly inserted around the tire. A plurality of threaded holes 804 matching the positions of the fixing rods 15 are reserved on the side wall of the sliding part 801 . The bottom ends of the fixing rods 15 are threadedly connected to the sliding part 801 through the threaded holes 804 .

[0065] The difference from the above embodiment is that by installing the tire on the sliding part 801 on the clearing pipe 8, and arranging the fixed plate 1401 and the movable plate 1402 at both ends of the tire, when the second driving mechanism works again, the movable plate 1402 enters the pipeline and contacts the sludge first, at which time the tire is squeezed to expand and fit the inner wall of the pipeline, and the pipeline can be quickly cleaned in the process of the clearing pipe 8 gradually moving out of the pipeline.

[0066] The tires are made of waste tires to reduce costs, and some other inflatable rubber parts can also achieve the above effects.

[0067] Based on any of the above embodiments, the device further includes a positioning sleeve 9, which is rotatably installed at the bottom of the second transverse support 4 to facilitate the insertion of ground nails, further support the second transverse support 4, and ensure the stability of the device.

[0068] The specific working principle of the present invention is:

[0069] During the adjustment and installation stage, the first lateral support 1 is placed on the top of the dam, keeping it level. The inclined supports 2 on both sides are pulled according to the width of the top of the dam. The first rotating shaft 201 moves in the installation groove 101 to allow the inclined support 2 to be installed in line with the slope of the dam. After adjustment, the first rotating shaft 20 is fixed by a nut. By passing the ground nail through the positioning sleeve 9 and further inserting it into the slope of the dam, a triangular support is formed under the second lateral support 4, which facilitates the adjustment of the level of the second lateral support 4 to ensure the horizontal movement of the clearing pipe 8.

[0070] Next, let the clearing pipe 8 enter the pipeline, select a clearing pipe 8 of appropriate length, put one end of the drill bit 803 of the clearing pipe 8 into the sliding groove 501 on the guide plate 5, turn on the motor 10 on this side, and engage the clearing pipe 8 through the driving gear 11 to let the drill bit 803 enter the pipeline until one end of the drill bit 803 is completely extended out of the pipeline. At this time, the sliding part 801 of the clearing pipe 8 has just moved out of the first driving mechanism, and the device is closed.

[0071] To install the clearing mechanism 14 , first insert the movable plate 1402 into the sliding portion 801 , then install the tire, and finally insert the fixed plate 1401 onto the positioning portion 804 .

[0072] After the clearing mechanism 14 is installed, the driving mechanism motor on the other side drives the gear 11 to engage the clearing pipe 8, allowing the clearing mechanism 14 to enter the pipeline. At this time, the movable disk 1402 is compressed first, so it will squeeze the tire and expand it until it completely fits the inner wall of the pipeline. Finally, the clearing pipe 8 and the fixed disk 1401 are completely moved out from the other side of the pipeline, and the clearing process is completed.

[0073] The device can adapt to longer pipelines and has high dredging efficiency.

[0074] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A dam drainage pipe cleaning device, characterized in that: It comprises a driving mechanism arranged at both ends of the dam pipeline, the driving mechanism comprising two motors (10) with the same rotation direction, and a gear (11) connected to a third rotating shaft (12) at the front of the motor (10); A clearing pipe (8), the clearing pipe (8) comprising an integrally formed sliding portion (801) and a meshing portion (802), a plurality of racks being uniformly reserved along the length direction of the meshing portion (802), the outer wall of the meshing portion (802), the motor (10) on one side of the dam meshes with the clearing pipe (8) through a driving gear (11) and extends into the dam pipeline, and when the head of the clearing pipe (8) extends out from the other side of the dam pipeline, the motor (10) on the other side of the dam meshes with the clearing pipe (8) through the driving gear (11) and completely brings the tail of the clearing pipe (8) out of the dam pipeline; A clearing mechanism (14), the clearing mechanism (14) being fixed to an outer port of the sliding portion (801) and being used to remove pipeline sludge when the clearing pipe (8) is moved out of the pipeline; A threaded fixing cap (13), wherein the threaded fixing cap (13) fixes the blockage clearing mechanism (14) to an outer port of the sliding portion (801); Also included are support members, the support members being used to fix the driving mechanism to both sides of the dam pipeline; The support member comprises a first lateral support (1), an inclined support (2), a connecting rod (3), a second lateral support (4) and a motor support (6), wherein: The first lateral support (1) is placed on the top of the dam; Two inclined supports (2) are provided, and the two inclined supports (2) are installed in accordance with the slope of the dam, and the tops of the two inclined supports (2) are respectively connected to the two ends of the first transverse support (1); Two second transverse supports (4) are provided, and the two second transverse supports (4) are provided on a side of the bottom of the inclined support (2) away from the dam slope; connecting rods (3) are fixedly provided at both front and rear ends of the side wall of the second transverse support (4) close to the inclined support (2); the other side of the connecting rod (3) is connected to the bottom of the inclined support (2); The motor support (6) is arranged on the second lateral support (4) and is used to fix the motor (10); The two ends of the inclined support (2) are rotatably connected to the first lateral support (1) and the connecting rod (3), respectively, wherein: The inclined support (2) on one side of the dam comprises two support rods arranged in parallel, and two ends of one of the support rods are respectively provided with a first rotating shaft (201) for rotationally connecting to the first lateral support (1), and a second rotating shaft (202) for connecting to the connecting rod (3); The first transverse support (1) comprises a mounting groove (101) arranged along the length direction of the first transverse support (1), and the first rotating shaft (201) is slidably mounted in the mounting groove (101).

2. A dam drainage pipe cleaning device according to claim 1, characterized in that: A guide plate (5) is also installed on the top of the second transverse support (4), and a sliding groove (501) is provided on the guide plate (5), and the clearing pipe (8) moves from one side of the sliding groove (501) to the other side.

3. A dam drainage pipe cleaning device according to claim 2, characterized in that: The gear (11) is externally sleeved with a protective cover (7), and the protective cover (7) is detachably mounted on the motor support (6).

4. A dam drainage pipe cleaning device according to claim 1, characterized in that: The blockage clearing pipe (8) further comprises a drill bit (803) and a positioning portion (804); the drill bit (803) is detachably mounted on an outer port of the meshing portion (802); the positioning portion (804) is arranged at an outer port of the sliding portion (801); the outer diameter of the positioning portion (804) is smaller than the outer diameter of the sliding portion (801); and an inner wall of an opening of the positioning portion (804) is provided with an internal thread.

5. A dam drainage pipe cleaning device according to claim 4, characterized in that: The blockage clearing mechanism (14) comprises a fixed disk (1401), a movable disk (1402) and a rubber expansion member (1403); the movable disk (1402) is movably sleeved on the sliding portion (801), the fixed disk (1401) is sleeved on the positioning portion (804), the rubber expansion member (1403) is sleeved on the sliding portion (801), and the rubber expansion member (1403) is located between the fixed disk (1401) and the movable disk (1402).

6. A dam drainage pipe cleaning device according to claim 5, characterized in that: The rubber expansion member (1403) is a tire.

7. A dam drainage pipe cleaning device according to any one of claims 1 to 6, characterized in that: It also comprises a positioning sleeve (9), wherein the positioning sleeve (9) is rotatably mounted on the bottom of the second lateral support (4).

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