A pipeline cleaning device for water conservancy projects

Abstract

The present invention relates to the technical field of pipeline cleaning, and particularly to a pipeline cleaning device for water conservancy projects, which comprises a cleaning head, a pipe core and a water injection pipe. A water outlet channel is arranged in the cleaning head; a rotating ring is connected to the cleaning head, and an annular channel is arranged on the inner wall of the rotating ring. The water outlet channel is communicated with the annular channel. A plurality of crushing columns are arranged on the outer wall of the rotating ring, and a side outlet is arranged on each crushing column. The side outlet is inclined in the radial direction of the cleaning head; a control ring is arranged between the inner wall of the rotating ring and the cleaning head. A sealing strip is connected to the left side wall of the control ring, a plurality of blocking rods are arranged at the right end of the control ring, and a first compression spring is arranged between the right side wall of the control ring and the cleaning head. The present invention can reduce the impact between the cleaning head and the inner wall of the pipeline, change the flow direction of the high-pressure water flow when the movement of the cleaning head is blocked, so that the high-pressure water flow acts on the scale hindering the movement of the cleaning head, the crushing columns impact the scale, improve the crushing effect, expand the water flow cleaning range, and improve the cleaning effect.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline cleaning, and particularly relates to a pipeline cleaning device for water conservancy projects. Background Art

[0002] Water conservancy project pipelines refer to various pipeline systems applied in water conservancy projects, mainly used for conveying, distributing, and controlling water flow to meet different water conservancy requirements, such as irrigation, drainage, water supply, and power generation. During long-term operation, impurities such as silt, scale, and microorganisms are likely to accumulate on the inner wall of the pipeline, resulting in a decrease in the water passing capacity of the pipeline or even blockage, affecting the normal operation of water conservancy facilities. Therefore, it is crucial to regularly clean and maintain water conservancy project pipelines.

[0003] Currently, high-pressure water jet cleaning technology is one of the main means for cleaning water conservancy project pipelines. As the core component of high-pressure water jet cleaning technology, the performance of the high-pressure cleaning head directly affects the cleaning effect. The water outlet holes on the high-pressure cleaning head are set to be inclined, so that the high-pressure water flow flowing out through the water outlet holes shoots towards the rear side of the high-pressure cleaning head, enabling the high-pressure cleaning head to move forward under the reaction force of the high-pressure water flow. During the cleaning process, the high-pressure cleaning head shoots high-pressure water flow towards the inner wall of the pipeline. The high-pressure cleaning head moves along the length direction of the pipeline under the reaction force of the high-pressure water flow. By using the high-pressure water flow to impact the inner wall of the pipeline, the attached solid particles and sediments are removed, and at the same time, the high-pressure water flow can flush the dirt on the inner wall of the pipeline to the outside of the pipeline.

[0004] Referring to the Chinese patent document with the authorization announcement number CN217888333U, the announcement date of November 25, 2022, and the name of an anti-blocking vibration high-pressure cleaning nozzle, water shoots out through the high-pressure holes on the surface of the mouse head. When the water pressure is relatively high, it will drive the overall cleaning head to vibrate. While vibrating, the inner wall of the pipeline is scrubbed by the brush in the cleaning mechanism, thereby cleaning the biofilm adsorbed on the inner wall of the pipeline.

[0005] Referring to the Chinese patent document with the authorization announcement number CN221548108U, the announcement date of August 16, 2024, and the name of a water conservancy pipeline for water conservancy projects, a cleaning component is arranged inside the water conservancy pipeline. The cleaning component includes a rotating column, and several groups of brushes are fixedly connected to one end of the surface of the rotating column. The brushes rotate to clean the inner wall of the water conservancy pipeline.

[0006] In view of the above related technologies, the brush in the above device can clean the dirt with relatively small adhesion from the inner wall of the pipeline. However, for some dirt with relatively large adhesion, the cleaning effect is poor and it is difficult to clean. Especially for the scale formed by long-term accumulation on the inner wall of the pipeline, under the impact of high-pressure water flow, the scale may partially fall off, but sharp or protruding edges will be formed. These edges may get stuck in the cleaning head, restricting the movement of the cleaning head. At the same time, the high-pressure water flow pushes the fallen scale fragments to the rear of the pipeline. If these scale fragments get stuck between the cleaning head and the inner wall of the pipeline, or accumulate on the uncleaned scale, it will further cause the cleaning head to be stuck. In this situation, it is difficult for the high-pressure water flow to directly act on the scale that causes the cleaning head to be stuck, thereby affecting the normal operation of the device and the cleaning effect. Summary of the Invention

[0007] In view of this, the present invention provides a cleaning device for a water conservancy project pipeline, aiming to solve the technical problem that the cleaning head is stuck by scale when cleaning the scale attached to the inner wall of the pipeline in the prior art, resulting in difficulty for the cleaning head to move forward.

[0008] To solve the above technical problems, a cleaning device for a water conservancy project pipeline provided by the present invention adopts the following technical solutions: A cleaning device for a water conservancy project pipeline includes a cleaning head, a pipe core, and a water injection pipe that are sequentially connected and communicated from left to right. A plurality of water outlet channels communicating with the inside of the pipe core are opened in the cleaning head. A plurality of right outlets sequentially communicating with the plurality of water outlet channels are opened on the circumferential side wall at the left end of the cleaning head, and the water flow at the right outlet shoots to the right; A rotating ring is rotatably connected to the cleaning head on the right side of the right outlet. An annular channel is opened on the inner wall of the rotating ring. The water outlet channels are connected to the annular channel through water holes. A plurality of crushing columns are arranged circumferentially on the outer wall of the rotating ring. Each crushing column is provided with a side outlet that can communicate with the annular channel, and the side outlet is inclined in the radial direction of the cleaning head; A control ring that slides left and right is provided between the inner wall of the rotating ring and the cleaning head. A sealing strip that can block the water hole between the annular channel and the water outlet channel is connected to the left side wall of the control ring. A plurality of blocking rods are arranged circumferentially at the right end of the control ring. The length of the blocking rod in the radial direction of the cleaning head is greater than the length of the crushing column in the radial direction of the cleaning head. A first compression spring is provided between the right side wall of the control ring and the cleaning head.

[0009] By adopting the above technical solution, when the device is working properly, water flows out from the right outlet to the right side of the cleaning head, and the cleaning head moves leftward under the reaction force of the water flow. When the scale on the inner wall of the pipe abuts against the blocking rod, the movement of the cleaning head is blocked. The cleaning head moves leftward under the reaction force of the high-pressure water flow, and the blocking rod abuts against the scale, causing the blocking rod, the control ring and the sealing strip to move rightward relative to the cleaning head, opening the water holes between the annular channel and the water outlet channel, so that the water flow shoots towards the inner wall of the pipe around the pipe through the water holes and the annular channel, and the scale near the blocking rod is cleaned under high pressure. At the same time, under the action of the high-pressure water flow, the rotating ring can be driven to rotate, the crushing column collides with the scale and crushes the scale, cleaning the scale on the inner wall of the pipe, ensuring the cleaning effect of the device and the normal advancement of the cleaning head, so as to facilitate the cleaning head to clean the inner wall of the pipe comprehensively.

[0010] A plurality of blocking rods are provided. The blocking rods are used to abut against the scale instead of the cleaning head. The blocking rods can reduce the impact between the cleaning head and the inner wall of the pipe, and have a protective effect on the inner wall of the pipe and the cleaning head. The high-pressure water flow directly acts on the scale at the circumferential side wall of the cleaning head, which is convenient for cleaning the scale that hinders the movement of the cleaning head. And a plurality of crushing columns are arranged circumferentially, the side outlets are inclined, the crushing columns abut against the scale and break the scale, which can effectively break the scale that blocks the cleaning head from moving leftward, and can also expand the flushing range of the high-pressure water flow, improving the cleaning effect of the device and ensuring the normal operation of the device.

[0011] Optionally, a plurality of left outlets are provided on the circumferential side wall at the left end of the cleaning head. The left outlets are arranged circumferentially on the left side of the right outlet. The plurality of left outlets are sequentially communicated with a plurality of water outlet channels one by one. The left outlets are inclined from left to right towards the direction close to the central axis of the cleaning head. A crushing block is provided on the left side of the cleaning head. A second compression spring is provided between the crushing block and the cleaning head. A plurality of switching pipes are arranged on the right side wall of the crushing block in a circumferential arrangement. The plurality of switching pipes are sequentially slidably inserted into the inner walls of the plurality of water outlet channels. A switching hole capable of communicating with the left outlet is provided on the side wall of the switching pipe. The switching pipe can block the right outlet.

[0012] By adopting the above technical solution, when the scale abuts against the left end of the cleaning head, the scale abuts against the crushing block, the second compression spring is compressed, the crushing block and the switching pipe move rightward, the switching pipe blocks the right outlet, the left outlet is communicated with the water outlet channel through the switching hole, the water flow changes the channel and shoots out from the left outlet towards the left side of the cleaning head, causing the cleaning head to move rightward under the reaction force of the water flow. During the movement, the crushing block moves away from the cleaning head under the action of the second compression spring, the switching pipe resets, the water restores the channel, and the water flow shoots out from the right outlet, causing the cleaning head to move leftward again. Repeat this process multiple times until the scale on the left side of the cleaning head is broken under the impact of the cleaning head and the action of the high-pressure water flow shooting out from the left outlet, and the cleaning head continues to move leftward to clean the inner wall of the pipe.

[0013] Optionally, the die is slidably inserted into the cleaning head in the left - right direction.

[0014] By adopting the above - mentioned technical solution, when the crushing block abuts against the scale, the cleaning head moves to the right. By adopting the sliding connection mode between the die and the cleaning head, during the right - ward movement of the cleaning head, the cleaning head and the die move relative to each other, and the position of the water injection pipe remains almost unchanged. This enables the subsequent reaction force of the water flow not to drive the water injection pipe to move, and the reaction force of the water flow is only used to move the cleaning head to the left and impact the scale, improving the impact force of the crushing head on the scale.

[0015] Optionally, a sliding groove extending in the left - right direction is formed on the right - hand side wall of the cleaning head, the die is slidably inserted into the inner wall of the sliding groove, and an annular water injection cavity is formed on the inner wall of the sliding groove. The water injection cavity communicates with the inside of the die and the water outlet channel.

[0016] Optionally, a first limiting rod is provided between the left - hand side wall of the sliding groove and the cleaning head. The right - hand end of the first limiting rod is slidably inserted through the left - hand end of the die, and a convex block capable of abutting against the left - hand side wall of the inner cavity of the die is connected to the right - hand end of the first limiting rod.

[0017] By adopting the above - mentioned technical solution, the first limiting rod is provided to improve the stability of the device.

[0018] Optionally, a second limiting rod is provided between the crushing block and the left - hand side wall of the cleaning head. A through - groove extending in the left - right direction is formed on the left - hand side of the crushing block. The left - hand end of the second limiting rod is slidably inserted through the crushing block, and a convex block capable of abutting against the right - hand side wall of the through - groove is connected to the left - hand end of the second limiting rod.

[0019] By adopting the above - mentioned technical solution, the second limiting rod is provided to improve the stability of the device.

[0020] Optionally, a spherical ball is rotatably connected to the end of the blocking rod away from the cleaning head.

[0021] By adopting the above - mentioned technical solution, the friction between the blocking rod and the inner wall of the pipeline is reduced, facilitating the movement of the cleaning head.

[0022] Optionally, the left - hand side wall of the crushing column is inclined from left to right in a direction away from the central axis of the cleaning head.

[0023] By adopting the above - mentioned technical solution, it is ensured that the high - pressure water flow ejected from the right outlet acts on the inner wall of the pipeline, and the situation of conflicts between structures is avoided as much as possible.

[0024] Optionally, the multiple crushing columns and the multiple blocking rods are arranged alternately.

[0025] By adopting the above technical solution, the crushing columns and the blocking rods are arranged alternately. When the blocking rod abuts against the scale, the crushing columns near the blocking rod can collide with the scale and crush the scale when rotating, reducing the situation where the scale abuts against the crushing columns, which is beneficial to ensuring the normal operation of the crushing columns.

[0026] Optionally, there are eight crushing columns.

[0027] By adopting the above technical solution, setting eight is a practical design choice, which can achieve a good balance among hydrodynamic performance, structural strength, functional requirements and cost, and has versatility and maintainability.

[0028] In summary, the present invention includes the following beneficial technical effects:

[0029] 1. A blocking rod is provided. The blocking rod abuts against the scale instead of the cleaning head, which can reduce the situation where the cleaning head collides with the inner wall of the pipeline and has a protective effect on the device; when the scale abuts against the blocking rod, the outlet of the high-pressure water flow is changed, so that the high-pressure water flow can impact the scale blocking the movement of the cleaning head, and under the reaction force of the high-pressure water flow, the rotating ring rotates, driving the crushing columns to impact the scale, which can not only improve the crushing effect, but also expand the flushing range of the water flow, further improving the cleaning effect of the device and ensuring the normal operation of the device.

[0030] 2. When the scale abuts against the left end of the cleaning head, the outlet of the high-pressure water flow is changed, so that the high-pressure water flow shoots at the scale on the left side of the cleaning head, and under the reaction force of the water flow and the action of the second compression spring, the cleaning head can move reciprocally left and right and impact the scale, improving the crushing effect of the device, ensuring the normal operation of the device, and improving the cleaning efficiency of the device.

[0031] 3. When crushing the scale on the left side of the cleaning head, the sliding setting of the pipe core and the cleaning head enables the reaction force of the water flow not to drive the water injection pipe to move, and the reaction force of the water flow is only used to make the cleaning head move leftward and collide with the scale, increasing the impact force of the crushing head on the scale and improving the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is the overall structural schematic diagram of the embodiment of the present invention;

[0033] Figure 2 is the sectional schematic diagram of the overall structure in the embodiment of the present invention;

[0034] Figure 3 is Figure 2 the partial enlarged schematic diagram of part A in

[0035] Figure 4 is Figure 2 the partial enlarged schematic diagram of part B in

[0036] Figure 5 This is a schematic structural diagram of the rotating ring and the cleaning head with one-fourth removed in the embodiment of the present invention;

[0037] Figure 6 This is a schematic structural diagram of the rotating ring with one-half removed in the embodiment of the present invention;

[0038] Figure 7 This is an exploded schematic diagram of the cleaning head, the rotating ring and the sealing strip in the embodiment of the present invention.

[0039] Explanation of reference numerals: 1, cleaning head; 2, tube core; 3, water injection pipe; 4, water outlet channel; 5, right outlet; 6, side flow assembly; 61, rotating ring; 62, annular channel; 63, crushing column; 64, side outlet; 65, control ring; 66, sealing strip; 67, blocking rod; 68, first compression spring; 7, left flow assembly; 71, left outlet; 72, crushing block; 73, second compression spring; 74, switching pipe; 75, switching hole; 8, sliding groove; 81, water injection cavity; 9, first limiting rod; 10, second limiting rod. Detailed implementation manners

[0040] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. The following Figure 1 - Accompanying Figure 7 will further elaborate on the present invention.

[0041] The embodiments of the present invention disclose a water conservancy project pipeline cleaning device. Referring to Figures 1 to 7 , a water conservancy project pipeline cleaning device includes a cleaning head 1, a tube core 2, a water injection pipe 3, a water outlet channel 4, a right outlet 5, a side flow assembly 6 and a left flow assembly 7. The cleaning head 1 is sleeved on the left end of the tube core 2, the cleaning head 1 is in communication with the inside of the tube core 2, the tube core 2 is in communication with the water outlet end of the water injection pipe 3, high-pressure water flow enters the inside of the cleaning head 1 through the water injection pipe 3 and the tube core 2, and through the mutual cooperation between the right outlet 5, the side flow assembly 6 and the left flow assembly 7, the cleaning head 1 shoots water flows in different directions from different positions in different scenarios, so as to clean the inner wall of the pipeline and ensure the normal operation of the device.

[0042] Referring to Figure 1 and Figure 2 , the water outlet channel 4 extends in the left-right direction, a plurality of water outlet channels 4 are uniformly arranged along the circumferential direction of the cleaning head 1, and a plurality of water outlet channels 4 are all in communication with the internal cavity of the tube core 2, and the water flow inside the tube core 2 flows into each water outlet channel 4. The right outlet 5 is opened on the circumferential side wall at the left end of the cleaning head 1, a plurality of right outlets 5 are uniformly arranged along the circumferential direction of the cleaning head 1, and a plurality of right outlets 5 are in one-to-one correspondence and communication with a plurality of water outlet channels 4.

[0043] Reference Figure 1 and Figure 2 When the cleaning head 1 is working properly, the water flow passes through the water injection pipe 3, the pipe core 2, the water outlet channel 4 and the right outlet 5 in sequence, and shoots out to the right side of the cleaning head 1. The water flow shoots towards the inner wall of the pipeline, and can clean the scale adhering to the inner wall of the pipeline. The cleaning head 1 moves to the left under the reaction force of the water flow.

[0044] Reference Figure 2 、 Figure 3 、 Figure 6 and Figure 7 In order to solve the problem that it is difficult for the cleaning head 1 to move due to the scale in the pipeline abutting against the circumferential side wall of the cleaning head 1, the following structure is adopted: The side flow component 6 includes a rotating ring 61, an annular channel 62, a crushing column 63, a side outlet 64, a control ring 65, a sealing strip 66, a stop bar 67 and a first compression spring 68.

[0045] Reference Figure 2 and Figure 3 The rotating ring 61 is rotatably connected to the circumferential side wall at the right end of the cleaning head 1, and the annular channel 62 is opened on the inner wall of the rotating ring 61. Refer to Figure 3 The annular channel 62 communicates with the water outlet channel 4 through a water hole.

[0046] Reference Figure 6 and Figure 7 The crushing column 63 is connected to the outer wall of the rotating ring 61. A plurality of crushing columns 63 are evenly arranged along the circumference of the cleaning head 1. The side outlet 64 is opened on the crushing column 63. The side outlet 64 is inclined in the radial direction of the cleaning head 1. The side outlet 64 communicates with the annular channel 62.

[0047] Reference Figure 6 and Figure 7 The control ring 65 is slidably inserted between the inner wall of the rotating ring 61 and the cleaning head 1 in the left-right direction. The sealing strip 66 is connected to the left side wall of the control ring 65. A plurality of sealing strips 66 are evenly arranged along the circumference of the cleaning head 1. The sealing strip 66 can seal the water hole between the annular channel 62 and the water outlet channel 4. The stop bar 67 is connected to the right end of the control ring 65. A plurality of stop bars 67 are provided and evenly arranged along the circumference of the cleaning head 1. The length of the stop bar 67 in the radial direction of the cleaning head 1 is greater than the length of the crushing column 63 in the radial direction of the cleaning head 1. The first compression spring 68 is arranged between the right side wall of the control ring 65 and the cleaning head 1.

[0048] Since a stop bar 67 is provided in this device, the stop bar 67 replaces the cleaning head 1 to abut against the scale, which can reduce the probability of the cleaning head 1 hitting the inner wall of the pipeline, and has a protective effect on the cleaning head 1 and the inner wall of the pipeline. When the scale abuts against the stop bar 67, as the cleaning head 1 moves to the left, the first compression spring 68 is compressed, the control ring 65 moves to the right, the annular channel 62 communicates with the water outlet channel 4, the water flow changes the channel and shoots out from the side outlet 64. The high-pressure water flow directly acts on the scale at the circumferential side wall of the cleaning head 1, facilitating the cleaning of the scale that hinders the movement of the cleaning head 1. Moreover, multiple crushing columns 63 are arranged circumferentially, the side outlet 64 is inclined, and under the reaction force of the water flow, the rotating ring 61 rotates, the crushing columns 63 abut against the scale and break the scale, which can effectively break the scale that blocks the movement of the cleaning head 1, ensuring the normal operation of the device. During the rotation of the rotating ring 61, the flushing range of the water flow can also be expanded, further improving the crushing effect of the water flow on the scale, and improving the cleaning effect and cleaning efficiency of the device.

[0049] Referring to Figure 2 and Figure 4 , to solve the problem that the scale in the pipeline abuts against the left end of the cleaning head 1, making it difficult for the cleaning head 1 to move, the following structure is adopted: the left flow component 7 includes a left outlet 71, a crushing block 72, a second compression spring 73, a switching pipe 74, and a switching hole 75.

[0050] Referring to Figure 2 , Figure 4 and Figure 5 , the left outlet 71 is provided on the circumferential side wall of the left end of the cleaning head 1, the left outlet 71 is located on the left side of the right outlet 5, multiple left outlets 71 correspond to and communicate with multiple water outlet channels 4 one by one, and the left outlet 71 is inclined from left to right in the direction close to the central axis of the cleaning head 1.

[0051] Referring to Figure 4 and Figure 6 , the crushing block 72 is arranged on the left side of the cleaning head 1, the second compression spring 73 is arranged between the crushing block 72 and the cleaning head 1, the switching pipe 74 is connected to the right side wall of the crushing block 72. Referring to Figure 4 and Figure 5 , multiple switching pipes 74 are evenly arranged along the circumference of the cleaning head 1, multiple switching pipes 74 correspond to multiple water outlet channels 4 one by one, the switching pipe 74 is slidably inserted into the inner wall of the water outlet channel 4, the switching hole 75 is provided on the side wall of the switching pipe 74. According to the different positions of the switching pipe 74, the switching pipe 74 can block the left outlet 71 or the right outlet 5. When the switching pipe 74 is on the left side, the side wall of the switching pipe 74 blocks the left outlet 71, and the right outlet 5 communicates with the water outlet channel 4. After the switching pipe 74 moves to the right, the side wall of the switching pipe 74 blocks the right outlet 5, and the left outlet 71 communicates with the water outlet channel 4 through the switching hole 75.

[0052] When the scale contacts the left end of the cleaning head 1, the scale contacts the crushing block 72, the second compression spring 73 is compressed, the crushing block 72 and the switching pipe 74 move to the right, the switching pipe 74 closes the right outlet 5, and the left outlet 71 communicates with the water outlet channel 4 through the switching hole 75. The water flow changes the channel and shoots out from the left outlet 71 towards the left side of the cleaning head 1, causing the cleaning head 1 to move to the right under the reaction force of the water flow. During the movement, the crushing block 72 moves away from the cleaning head 1 under the action of the second compression spring 73, the switching pipe 74 resets, the water flow restores the channel, and the water flow shoots out from the right outlet 5, causing the cleaning head 1 to move to the left again. This is repeated multiple times until the scale on the left side of the cleaning head 1 is broken under the impact of the cleaning head 1 and the high-pressure water flow shooting out from the left outlet 71, and the cleaning head 1 continues to move to the left to clean the inner wall of the pipeline.

[0053] Referring to Figure 2 , further, the core 2 is slidably inserted into the cleaning head 1 in the left-right direction. When the crushing block 72 contacts the scale, the cleaning head 1 moves to the right. By adopting the sliding connection mode of the core 2 and the cleaning head 1, during the rightward movement of the cleaning head 1, the cleaning head 1 and the core 2 move relative to each other, and the position of the water injection pipe 3 remains almost unchanged, so that the subsequent reaction force of the water flow does not need to drive the water injection pipe 3 to move, and the reaction force of the water flow is only used to make the cleaning head 1 move to the left and collide with the scale, improving the impact force of the crushing block 72 on the scale.

[0054] Referring to Figure 2 and Figure 3 , specifically, a sliding groove 8 extending in the left-right direction is formed on the right side wall of the cleaning head 1, the core 2 is slidably inserted into the inner wall of the sliding groove 8, and an annular water injection cavity 81 is formed on the inner wall of the sliding groove 8, and the water injection cavity 81 communicates with the inside of the core 2 and the water outlet channel 4.

[0055] Referring to Figure 2 and Figure 3 , further, a first limiting rod 9 is provided between the left side wall of the sliding groove 8 and the cleaning head 1. The right end of the first limiting rod 9 is slidably inserted into the left end of the core 2, and a convex block capable of abutting against the left side wall of the inner cavity of the core 2 is connected to the right end of the first limiting rod 9.

[0056] Referring to Figure 2 and Figure 3 , further, a second limiting rod 10 is provided between the crushing block 72 and the left side wall of the cleaning head 1. A through groove extending in the left-right direction is formed on the left side of the crushing block 72, the left end of the second limiting rod 10 is slidably inserted into the crushing block 72, and a convex block capable of abutting against the right side wall of the through groove is connected to the left end of the second limiting rod 10.

[0057] Referring to Figure 1 , further, a spherical ball is rotatably connected to the end of the blocking rod 67 far from the cleaning head 1. This reduces the friction between the blocking rod 67 and the inner wall of the pipeline and facilitates the movement of the cleaning head 1.

[0058] Reference Figure 1 and Figure 2 Furthermore, the left side wall of the crushing column 63 is inclined from left to right in a direction away from the central axis of the cleaning head 1. It is ensured that the high-pressure water flow ejected from the right outlet 5 can act on the inner wall of the pipe, and the conflict between the structures is avoided as much as possible.

[0059] Reference Figure 1 and Figure 6 Furthermore, a plurality of crushing columns 63 and a plurality of baffles 67 are arranged in a staggered manner. When the baffles 67 contact the scale, the crushing columns 63 near the baffles 67 rotate to collide with the scale and crush the scale, thereby reducing the situation where the scale is stuck between the crushing columns 63 and the inner wall of the pipeline, which is conducive to ensuring the normal operation of the crushing columns 63.

[0060] Furthermore, eight crushing columns 63 are provided, and eight blocking rods 67 are provided. A good balance can be achieved between fluid mechanics performance, structural strength, functional requirements and cost, and the invention has versatility and maintainability.

[0061] The implementation principle of a water conservancy project pipeline cleaning device according to an embodiment of the present invention is as follows:

[0062] When the cleaning head 1 works normally, water flows through the water injection pipe 3, the tube core 2, the water outlet channel 4 and the right outlet 5 in sequence, and is ejected to the right side of the cleaning head 1. The water flows toward the inner wall of the pipe, which can clean the scale attached to the inner wall of the pipe. The cleaning head 1 moves to the left under the reaction force of the water flow.

[0063] When the scale abuts against the baffle 67, as the cleaning head 1 moves to the left, the compression spring 68 is compressed, the control ring 65 moves to the right relative to the cleaning head 1, the annular channel 62 is connected with the water outlet channel 4, the water flow changes the channel and is ejected from the side outlet 64, and the high-pressure water flow directly acts on the scale on the circumferential side wall of the cleaning head 1 to facilitate cleaning. In addition, multiple crushing columns 63 are arranged circumferentially, and the side outlet 64 is inclined. Under the reaction force of the water flow, the rotating ring 61 rotates, and the crushing columns 63 abut against and break up the scale, which can improve the cleaning effect of the device.

[0064] When the scale contacts the left end of the cleaning head 1, the scale contacts the crushing block 72, the second compression spring 73 is compressed, the crushing block 72 and the switching pipe 74 move rightward relative to the cleaning head 1, the switching pipe 74 closes the right outlet 5, the left outlet 71 communicates with the water outlet channel 4 through the switching hole 75, the water flow changes the channel and shoots out from the left outlet 71 towards the left side of the cleaning head 1, the water flow flushes the scale on the left side of the cleaning head 1, and at the same time, the cleaning head 1 moves rightward under the reaction force of the water flow. During the movement, the crushing block 72 moves leftward relative to the cleaning head 1 under the action of the second compression spring 73, the switching pipe 74 resets, the water flow shoots out from the right outlet 5, causing the cleaning head 1 to move leftward again, the crushing block 72 hits the scale again, and this is repeated multiple times until the scale on the left side of the cleaning head 1 is broken under the impact of the cleaning head 1 and the action of the high-pressure water flow shooting out from the left outlet 71, and the cleaning head 1 continues to move leftward to clean the inner wall of the pipeline.

[0065] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "coupling" should be understood in a broad sense.

Claims

1. A water conservancy project pipeline cleaning device, comprising a cleaning head, a pipe core and a water injection pipe connected in sequence from left to right, characterized in that: The cleaning head is provided with a plurality of water outlet channels connected to the interior of the tube core, and the circumferential side wall at the left end of the cleaning head is provided with a plurality of right outlets connected to the plurality of water outlet channels in sequence, and water flows from the right outlet toward the right side; The cleaning head is rotatably connected to a rotating ring located on the right side of the right outlet, an annular channel is provided on the inner wall of the rotating ring, the water outlet channel is connected to the annular channel through a water hole, a plurality of crushing columns are arranged circumferentially on the outer wall of the rotating ring, each crushing column is provided with a side outlet that can be connected to the annular channel, and the side outlet is inclined in the radial direction of the cleaning head; A control ring that slides left and right is provided between the inner wall of the rotating ring and the cleaning head. A sealing strip that can close the water hole between the annular channel and the water outlet channel is connected to the left wall of the control ring. Multiple sealing strips are evenly arranged along the circumference of the cleaning head. Multiple blocking rods are arranged circumferentially on the right end of the control ring. The length of the blocking rod in the radial direction of the cleaning head is greater than the length of the crushing column in the radial direction of the cleaning head. A compression spring is provided between the right wall of the control ring and the cleaning head. The circumferential side wall of the left end of the cleaning head is provided with a plurality of left outlets located on the left side of the right outlet and arranged circumferentially. The plurality of left outlets are connected with the plurality of water outlet channels in sequence one by one. The left outlet is inclined from left to right toward the direction close to the central axis of the cleaning head. A crushing block is provided on the left side of the cleaning head. A compression spring 2 is provided between the crushing block and the cleaning head. A plurality of switching tubes are arranged circumferentially on the right side wall of the crushing block. The plurality of switching tubes are slidably inserted into the inner walls of the plurality of water outlet channels in sequence. A switching hole that can be connected with the left outlet is provided on the side wall of the switching tube. The switching tube can close the right outlet.

2. A water conservancy project pipeline cleaning device according to claim 1, characterized in that: The tube core is slidably inserted into the cleaning head along the left-right direction.

3. A water conservancy project pipeline cleaning device according to claim 2, characterized in that: The right side wall of the cleaning head is provided with a sliding groove extending in the left-right direction, the tube core is slidably inserted into the inner wall of the sliding groove, and the inner wall of the sliding groove is provided with an annular water injection cavity, which communicates with the inside of the tube core and the water outlet channel.

4. A water conservancy project pipeline cleaning device according to claim 3, characterized in that: A limiting rod is provided between the left side wall of the sliding groove and the cleaning head, and the right end of the limiting rod is inserted into the left end of the tube core in a sliding plug-in manner. The right end of the limiting rod is connected to a protrusion that can abut against the left side wall of the internal cavity of the tube core.

5. A water conservancy project pipeline cleaning device according to claim 1, characterized in that: A limiting rod 2 is provided between the crushing block and the left side wall of the cleaning head. A through slot extending in the left and right directions is opened on the left side of the crushing block. The left end of the limiting rod 2 is inserted into the crushing block in a sliding manner. The left end of the limiting rod 2 is connected to a protrusion that can abut against the right side wall of the through slot.

6. A water conservancy project pipeline cleaning device according to claim 1, characterized in that: One end of the baffle rod away from the cleaning head is rotatably connected with a ball.

7. A water conservancy project pipeline cleaning device according to claim 1, characterized in that: The left side wall of the crushing column is inclined from left to right in a direction away from the central axis of the cleaning head.

8. A water conservancy project pipeline cleaning device according to claim 1, characterized in that: The plurality of crushing columns and the plurality of blocking rods are arranged in a staggered manner.

9. A water conservancy project pipeline cleaning device according to claim 1, characterized in that: The crushing columns are provided with eight.

Images