Tunnel drainage pipe crystallization blockage dredging and silt suction device

Abstract

The application relates to a tunnel drainage pipeline crystallization blockage dredging and silt suction device, belonging to the technical field of sewer dredging and dredging, which comprises a main pipeline, a supporting assembly is arranged on the outer wall of the main pipeline, a broken flushing assembly is rotatably arranged at one end of the main pipeline, and the supporting assembly can support the broken flushing assembly at the center of the drainage pipeline; the broken flushing assembly comprises a first rotating sleeve and a second rotating sleeve, and the first rotating sleeve is rotatably arranged on the outer wall of the main pipeline. When high-pressure water flows out from the inclined holes, the centrifugal force not only drives the second rotating sleeve to rotate, but also makes the broken balls fly outward under the action of the centrifugal force. Meanwhile, the centrifugal force can pull the second rotating sleeve to move towards the first rotating sleeve, so that the inclination angle of the soft chain is automatically reduced, the rotation radius of the broken balls is increased, the broken balls can always adhere to the pipe wall of different pipe diameters for crystallization breaking, the device can adapt to the pipe diameter to a certain extent, and manual frequent adjustment is not needed.

Description

Technical Field

[0001] This invention relates to the field of drainage pipe dredging and unblocking technology, and in particular to a device for unblocking and removing silt from tunnel drainage pipes blocked by crystallization. Background Technology

[0002] During tunnel operation, the smooth functioning of the drainage system is crucial. However, due to long-term infiltration of groundwater, the water penetrates the surrounding rock and comes into contact with the concrete lining structure, gradually dissolving the calcium components (such as calcium hydroxide) in the concrete, forming calcium-rich seepage water. When this calcium-containing water enters the drainage pipes, changes in the pressure, temperature, and carbon dioxide partial pressure within the pipes cause the calcium carbonate in the water to become supersaturated and precipitate, gradually depositing into the pipe walls to form hard calcium carbonate crystals (commonly known as scale or crystals). Over time, these crystals thicken, eventually causing blockages in the drainage pipes, severely affecting the drainage capacity of the tunnel structure, and even leading to problems such as increased water pressure in the lining and leakage.

[0003] Currently, the main method for cleaning crystallization blockages in drainage pipes involves high-pressure water jets combined with mechanical crushing structures. Common equipment uses high-pressure water to drive a drill bit, the end of which is connected to a chain or iron chain. The high-speed rotation of the chain strikes and breaks up the crystals, and the high-pressure water jet then flushes the broken crystals out of the pipe. However, this cleaning method has significant drawbacks: to ensure effective crystal breakage, high water pressure is usually required to maintain the high-speed rotation of the drill bit and chain. However, while the high-speed rotation of the chain breaks up the crystals, it easily causes impact damage to the inner wall of the drainage pipe, resulting in a rough surface. This rough pipe wall not only reduces drainage efficiency but also provides more nucleation sites for subsequent crystal adhesion, accelerating the reformation and blockage, creating a vicious cycle of "cleaning—damage—accelerated blockage—re-cleaning". Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a device for clearing and removing silt from tunnel drainage pipes that prevents crystallization blockage. This device significantly reduces impact damage to the pipe wall and effectively avoids the problems of pipe wall roughening and subsequent accelerated crystallization and adhesion.

[0005] The specific technical solution is as follows: a device for clearing and removing silt from crystallized blockages in tunnel drainage pipes, including a main pipe, a support assembly sleeved on the outer wall of the main pipe, and a crushing and flushing assembly rotatably sleeved on one end of the main pipe, wherein the support assembly can support the crushing and flushing assembly at the center of the drainage pipe. The crushing and flushing assembly includes a first rotating sleeve and a second rotating sleeve. The first rotating sleeve is rotatably sleeved on the outer wall of the main pipe, and the second rotating sleeve is rotatably connected to one end of the main pipe. A cavity is opened at one end of the second rotating sleeve, and the end of the main pipe passes through the second rotating sleeve and extends into the cavity. A water guide hole is opened on the outer wall of the main pipe inside the cavity. An inclined hole communicating with the cavity is opened on the periphery of the second rotating sleeve. A crushing ball is arranged between the first rotating sleeve and the second rotating sleeve. A soft chain is fixedly connected to both side walls of the crushing ball. One soft chain is fixedly connected to the first rotating sleeve, and the other soft chain is fixedly connected to the second rotating sleeve. Adjusting the distance between the first rotating sleeve and the second rotating sleeve can increase or decrease the radius of rotation of the crushing ball. One end of the second rotating sleeve is fixedly connected to an adaptive connector, and the adaptive connector is connected to the support component.

[0006] In some embodiments, the support assembly includes a plurality of support bars disposed around the periphery of the main pipe, and each support bar is rotatably connected to a connecting rod at both ends.

[0007] In some embodiments, the connecting rod at one end of the support bar is connected to the circumference of the first collar, and the connecting rod at the other end of the support bar is connected to the circumference of the second collar. Both the first collar and the second collar are slidably fitted onto the outer wall of the main pipe.

[0008] In some embodiments, the outer wall of the first collar is threaded with a bolt, and one end of the bolt passes through the first collar and abuts against the main pipe to fix the first collar.

[0009] In some embodiments, the adaptive connector includes a first connecting rod fixedly connected to the second rotating sleeve, a first annular groove is formed on one side wall of the second sleeve, a first connecting ring is rotatably connected to the inner wall of the first annular groove, and one end of the first connecting rod passes through the first rotating sleeve and is fixedly connected to the first connecting ring.

[0010] In some embodiments, a second annular groove is provided on one side wall of the first rotating sleeve, and a second connecting ring is rotatably connected to the inner wall of the second annular groove. A second connecting rod is fixedly connected to one side wall of the second connecting ring, and one end of the second connecting rod passes through the second sleeve and is connected to the first sleeve.

[0011] In some embodiments, a spring is provided inside the cavity, and a limit ring is rotatably connected to the outer wall of the main pipe for cooperating with the spring.

[0012] In some embodiments, the axis of the inclined hole forms an angle of 30° to 60° with the radial direction of the second rotating sleeve.

[0013] In some embodiments, one end of the second rotating sleeve is fixedly connected to a cone head, and the outer wall of the cone head is provided with a stirring groove.

[0014] In some embodiments, the number of support bars is three to six, and they are evenly distributed along the circumference of the main pipe.

[0015] Compared with the prior art, the present invention has the following beneficial effects: Firstly, this invention employs a centrifugal force-driven adaptive adjustment structure. When high-pressure water is ejected from the inclined hole, it not only drives the second rotating sleeve to rotate but also causes the crushing balls to be thrown outwards under centrifugal force. Simultaneously, the centrifugal force pulls the second rotating sleeve towards the first rotating sleeve, thereby automatically reducing the inclination angle of the soft chain and increasing the rotation radius of the crushing balls. This ensures that the crushing balls always adhere to the pipe walls of different diameters for crystallization and crushing, thus adapting to the pipe diameter to a certain extent and eliminating the need for frequent manual adjustments.

[0016] Secondly, this invention not only possesses an automatic adaptive function driven by centrifugal force, but also includes a manual coarse adjustment mechanism composed of bolts and a sliding first collar. When the drainage pipe diameter exceeds the automatic adjustment range, the operator can actively change the support range of the support bar by loosening the bolts and sliding the first collar, and simultaneously move the first rotating sleeve via the second connecting rod, thereby changing the ultimate crushing radius of the crushing ball. This dual adjustment mechanism enables the device to be applied to various tunnel drainage pipes from small to large diameters, significantly improving the equipment's versatility and engineering adaptability.

[0017] Thirdly, the support component of this invention employs multiple adjustable support bars, which, in conjunction with the sliding adjustment of the first and second sets of rings, stably support the main pipe and the crushing and flushing component at the central axis of the drain pipe. This not only ensures uniform impact of the crushing balls on the crystals surrounding the pipe wall but also avoids excessive wear or pipe wall damage on one side due to device tilt, further improving the unblocking effect and the service life of the device. The impact damage to the pipe wall is significantly reduced, effectively preventing pipe wall roughening and subsequent accelerated crystal adhesion.

[0018] Fourthly, this invention utilizes a limiting ring in conjunction with a spring. The spring is fitted onto the main pipe, with one end abutting against the limiting ring and the other end abutting against the inner wall of the cavity. When the high-pressure water supply stops, the centrifugal force disappears, and the spring's elasticity pushes the second rotating sleeve back to its initial position, simultaneously retracting the support assembly, facilitating the removal of the device from the pipe. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 yes Figure 1 Enlarged structural diagram at point A; Figure 3 This is a first partial structural schematic diagram of this application; Figure 4 yes Figure 3 Enlarged structural diagram at point B; Figure 5 This is a schematic diagram of the second partial structure of this application; Figure 6 yes Figure 5 Enlarged structural diagram at point C; Figure 7 This is a cross-sectional structural diagram of this application; Figure 8 yes Figure 7 Enlarged structural diagram at point D; Figure 9 yes Figure 7 Enlarged structural diagram at point E; Figure 10 yes Figure 7 Enlarged structural diagram at point F.

[0020] Reference numerals: 1. Main pipe; 2. Support bar; 3. Connecting rod; 4. First collar; 5. Second collar; 6. Bolt; 7. First rotating sleeve; 8. Second rotating sleeve; 9. Cavity; 10. Inclined hole; 11. Flexible chain; 12. Crushing ball; 13. Limiting ring; 14. Water guide hole; 15. Spring; 16. First connecting rod; 17. First connecting ring; 18. Second connecting rod; 19. Second connecting ring; 20. Second annular groove; 21. First annular groove; 22. Cone head; 23. Stirring trough. Detailed Implementation

[0021] The embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of this disclosure by way of example, but should not be used to limit the scope of this disclosure. This disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0022] These embodiments are provided to make the disclosure thorough and complete, and to fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​set forth in these embodiments should be interpreted as exemplary only and not as limiting.

[0023] It should be noted that, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0024] Furthermore, the terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after the word, and do not exclude the possibility of encompassing other elements as well.

[0025] All terms used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0026] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0027] Please see Figures 1 to 10 A device for clearing and removing silt from crystallized blockages in tunnel drainage pipes includes a main pipe 1, a support assembly fitted on the outer wall of the main pipe 1, and a crushing and flushing assembly rotatably fitted on one end of the main pipe 1. The support assembly can support the crushing and flushing assembly at the center of the drainage pipe. The crushing and flushing assembly includes a first rotating sleeve 7 and a second rotating sleeve 8. The first rotating sleeve 7 is rotatably sleeved on the outer wall of the main pipe 1, and the second rotating sleeve 8 is rotatably connected to one end of the main pipe 1. A cavity 9 is opened at one end of the second rotating sleeve 8. The end of the main pipe 1 passes through the second rotating sleeve 8 and extends into the cavity 9. A water guide hole 14 is opened on the outer wall of the main pipe 1 inside the cavity 9. An inclined hole 10 communicating with the cavity 9 is opened on the periphery of the second rotating sleeve 8. A crushing ball 12 is arranged between the first rotating sleeve 7 and the second rotating sleeve 8. A soft chain 11 is fixedly connected to both side walls of the crushing ball 12. One soft chain 11 is fixedly connected to the first rotating sleeve 7, and the other soft chain 11 is fixedly connected to the second rotating sleeve 8. Adjusting the distance between the first rotating sleeve 7 and the second rotating sleeve 8 can increase or decrease the radius of rotation of the crushing ball 12. One end of the second rotating sleeve 8 is fixedly connected to an adaptive connector, and the adaptive connector is connected to the support component.

[0028] As shown in the above structure, during use, the high-pressure water pipe is connected to the main pipe 1, and the device is inserted into the drain pipe. The support assembly supports the main pipe 1 and the crushing and flushing assembly at the center of the drain pipe. High-pressure water enters the cavity 9 through the main pipe 1 and the water guide hole 14, and then sprays out at high speed from the inclined hole 10, generating a reaction force. On the one hand, it pushes the device to move forward automatically along the drain pipe, and on the other hand, it drives the second rotating sleeve 8 to rotate. The second rotating sleeve 8 drives the crushing ball 12 to rotate through the soft chain 11, and at the same time, the first rotating sleeve 7 also rotates under the traction of the soft chain 11. When the distance between the first rotating sleeve 7 and the second rotating sleeve 8 changes, the inclination angle of the soft chain 11 changes accordingly, thereby increasing or decreasing the rotation radius of the crushing ball 12 to adapt to different pipe diameters. The adaptive connector transmits the movement of the second rotating sleeve 8 to the support assembly, realizing synchronous adjustment of the support radius. This design places the crushing ball 12 between the first rotating sleeve 7 and the second rotating sleeve 8. The crushing radius can be changed by adjusting the distance between the two. The structure is simple and efficient. The adaptive connector realizes the linkage adjustment of the crushing radius and the support radius, ensuring that the device is always centered. As long as the maximum radius of rotation of the crushing ball 12 is less than the diameter of the drain pipe, the crushing ball 12 can avoid damaging the inner wall of the drain pipe.

[0029] Furthermore, the support assembly includes multiple support bars 2 arranged around the main pipe 1, with each support bar 2 having a connecting rod 3 rotatably connected to both ends. The support bars 2 are connected to a collar on the main pipe 1 via the connecting rods 3. When the collar slides axially along the main pipe 1, the inclination angle of the connecting rod 3 changes, thereby pushing the support bar 2 to extend radially outward or retract radially, so that the outer end of the support bar 2 contacts the inner wall of the drain pipe, achieving centering support for the main pipe 1. The linkage mechanism composed of multiple support bars 2 and connecting rods 3 has a simple structure, a large adjustment range, and can adapt to different pipe diameters. The support bars 2 have line contact or small-surface contact with the pipe wall, resulting in low frictional resistance and facilitating the movement of the device within the pipe. At the same time, this structure has good centering performance, ensuring that the crushing ball 12 uniformly impacts and crystallizes along the pipe wall.

[0030] Furthermore, the connecting rod 3 at one end of the support bar 2 is connected to the circumference of the first collar 4, and the connecting rod 3 at the other end of the support bar 2 is connected to the circumference of the second collar 5. Both the first collar 4 and the second collar 5 are slidably fitted onto the outer wall of the main pipe 1; the first collar 4 and the second collar 5 can slide independently on the main pipe 1. When the two are relatively close, the included angle of the connecting rod 3 increases, and the support bar 2 extends radially outward to accommodate large-diameter pipes; when the two are relatively far apart, the support bar 2 retracts radially to accommodate small-diameter pipes. By adjusting the relative position of the two collars, the support radius of the support assembly can be changed; the double-collar sliding structure makes the adjustment of the support radius more flexible, and different support ranges can be achieved by moving one collar individually or moving both collars simultaneously. This structure facilitates linkage with adaptive connectors to achieve automatic adjustment or manual coarse adjustment.

[0031] Furthermore, the outer wall of the first ring 4 is threaded with a bolt 6, and one end of the bolt 6 passes through the first ring 4 and abuts against the main pipe 1 to fix the first ring 4. When it is necessary to manually set the support radius or crushing radius, loosen the bolt 6, slide the first ring 4 along the main pipe 1 to the required position, and then tighten the bolt 6 so that the end of the bolt 6 is tightly against the outer wall of the main pipe 1, and lock the first ring 4 by friction. The structure is simple and reliable, thereby maintaining the adjustment state of the support assembly and the crushing and flushing assembly.

[0032] Furthermore, the adaptive connector includes a first connecting rod 16 fixedly connected to the second rotating sleeve 8. A first annular groove 21 is formed on one side wall of the second ring 5, and a first connecting ring 17 is rotatably connected to the inner wall of the first annular groove 21. One end of the first connecting rod 16 passes through the first rotating sleeve 7 and is fixedly connected to the first connecting ring 17. When the second rotating sleeve 8 rotates, the first connecting rod 16 rotates accordingly and is rotatably connected to the second ring 5 through the first connecting ring 17, so that the second ring 5 does not rotate with the second rotating sleeve 8. It also ensures that when the second rotating sleeve 8 rotates, the first rotating sleeve 7 can be driven to rotate through the first connecting rod 16. When the second rotating sleeve 8 moves axially towards the first rotating sleeve 7 under the action of centrifugal force, the first connecting rod 16 drives the first connecting ring 17 and the second ring 5 to move axially synchronously, thereby changing the support radius of the support bar 2 and realizing the automatic adaptive adjustment of the support assembly to the inner diameter of the drain pipe. This adaptive connector links the axial movement of the crushing and flushing assembly with the radial adjustment of the support assembly, so that the device can automatically match different pipe diameters under high-pressure water drive without manual intervention. Meanwhile, the rotational engagement between the first connecting ring 17 and the first ring groove 21 enables a reliable connection between the rotating and non-rotating components, thus avoiding motion interference.

[0033] Furthermore, a second annular groove 20 is formed on one side wall of the first rotating sleeve 7, and a second connecting ring 19 is rotatably connected to the inner wall of the second annular groove 20. A second connecting rod 18 is fixedly connected to one side wall of the second connecting ring 19, and one end of the second connecting rod 18 passes through the second sleeve 5 and connects to the first sleeve 4. When manual coarse adjustment is required, the bolt 6 is loosened and the first sleeve 4 is slid. The movement of the first sleeve 4 drives the second connecting ring 19 and the first rotating sleeve 7 to move axially synchronously through the second connecting rod 18, thereby changing the initial distance between the first rotating sleeve 7 and the second rotating sleeve 8. This change in distance will change the initial tilt angle of the soft chain 11, thereby adjusting the maximum rotation radius of the crushing ball 12. At the same time, the change in the relative position of the first sleeve 4 and the second sleeve 5 also changes the support range of the support bar 2, making the device applicable to a wider range of drainage pipe diameters. Through the rotational engagement of the second connecting ring 19 and the second annular groove 20, it is ensured that the first rotating sleeve 7 will not drive the first sleeve 4 to rotate when rotating, ensuring the independence and stability of manual adjustment.

[0034] Furthermore, a spring 15 is installed inside the cavity 9, and a limiting ring 13 is rotatably connected to the outer wall of the main pipe 1 for cooperating with the spring 15; the spring 15 is sleeved on the main pipe 1, with one end abutting against the limiting ring 13 and the other end abutting against the inner wall of the cavity 9. When the high-pressure water supply stops, the centrifugal force disappears, and the elastic force of the spring 15 pushes the second rotating sleeve 8 back to its initial position, while simultaneously driving the support assembly to retract, making it easy to remove the device from the pipe.

[0035] Furthermore, the axis of the inclined hole 10 forms an angle of 30° to 60° with the radial direction of the second rotating sleeve 8; when high-pressure water is ejected from the inclined hole 10, the water flow generates a tangential component force on the hole wall. This tangential component force forms a torque relative to the rotation axis of the second rotating sleeve 8, thereby driving the second rotating sleeve 8 to rotate at high speed. The smaller the angle, the larger the tangential component force, but the smaller the axial thrust; the larger the angle, the larger the axial thrust, but the smaller the rotational torque. 30° to 60° is a preferred range that balances rotational speed and forward thrust.

[0036] Furthermore, a cone 22 is fixedly connected to one end of the second rotating sleeve 8, and a stirring groove 23 is formed on the outer wall of the cone 22. The cone 22 is located at the front end of the device, and its conical structure can guide the device smoothly into the drain pipe and push away obstacles or sediments when it encounters them. The stirring groove 23 is formed on the outer wall of the cone 22. When the device rotates, the stirring groove 23 rotates with it, which can pre-crush or scrape the crystals on the inner wall of the pipe. The cone 22 improves the guidance and passage of the device and reduces the resistance at the pipe inlet or bend. The design of the stirring groove 23 increases the front-end crushing capacity and forms a staged crushing with the rear-end crushing ball 12. At the same time, the stirring groove 23 can also play a role similar to a spiral propulsion, assisting the device to move forward.

[0037] Furthermore, the number of support bars 2 is three to six, and they are evenly distributed around the circumference of the main pipe 1. The support bars 2 are evenly distributed around the main pipe 1, and each support bar 2 is connected to the first collar 4 and the second collar 5 through a connecting rod 3. When the number of support bars 2 is three to six, a stable multi-point support can be formed, keeping the main pipe 1 in a centered state within the drain pipe. Too few support bars will lead to unstable support and the device will easily tilt; too many support bars will increase structural complexity and frictional resistance.

[0038] In this invention, during use, a high-pressure water pipe is connected to the rear end of the main pipe 1, and the device is inserted into the drain pipe to be unclogged. The high-pressure water source is activated, and the high-pressure water flows through the main pipe 1 and the guide hole 14 into the cavity 9, then is ejected at high speed from the inclined hole 10. The ejected high-pressure water generates a reaction force, which on one hand propels the entire device to move automatically forward along the drain pipe to a deeper depth, and on the other hand drives the second rotating sleeve 8 to rotate at high speed. The second rotating sleeve 8 drives the first rotating sleeve 7 to rotate synchronously through the first connecting rod 16 and the first connecting ring 17. When the first rotating sleeve 7 and the second rotating sleeve 8 rotate, the crushing ball 12 is thrown outward by the soft chain 11 under the action of centrifugal force. As the rotation speed increases, the centrifugal force increases, and the crushing ball 12 will pull the second rotating sleeve 8 to move towards the first rotating sleeve 7 against the elastic force of the spring 15, thereby reducing the angle between the soft chain 11 and the axis of the main pipe 1, that is, reducing the inclination angle of the soft chain 11, so that the rotation radius of the crushing ball 12 automatically increases until the crushing ball 12 contacts the crystals on the pipe wall and begins to crush them. At the same time, the axial movement of the second rotating sleeve 8 drives the second collar 5 to move towards the first collar 4 through the first connecting rod 16, so that the angle of the connecting rod 3 increases and the support bar 2 extends radially outward, automatically adjusting the support radius of the support assembly to ensure that the device is always aligned. After the support radius of the support bar 2 is matched with the drain pipe, the support bar 2 is blocked by the inner wall of the drain pipe and cannot continue to move. This restricts the radius of rotation of the crushing ball 12 in the opposite way, preventing the radius of rotation of the crushing ball 12 from continuing to expand and hitting the inner wall of the drain pipe. When the diameter of the drain pipe is too large or too small, exceeding the automatic centrifugal force adjustment range, stop the high-pressure water supply, loosen bolt 6, and manually slide the first ring 4 along the main pipe 1. As the first ring 4 moves, it drives the first rotating sleeve 7 to move synchronously via the second connecting rod 18, thereby changing the initial distance between the first rotating sleeve 7 and the second rotating sleeve 8, and thus adjusting the maximum rotation radius of the crushing ball 12. Simultaneously, the change in the relative position of the first ring 4 and the second ring 5 also changes the support range of the support bar 2 until the support bar 2's support size is slightly smaller than the drain pipe. After adjustment, retighten bolt 6 to accommodate the new pipe diameter. After placing the device inside the drain pipe, it can be used. When in use, as the crushing ball 12 rotates, the centrifugal force increases, and the crushing ball 12 will pull the second rotating sleeve 8 to move towards the first rotating sleeve 7 against the elastic force of the spring 15. The axial movement of the second rotating sleeve 8 drives the second collar 5 to move towards the first collar 4 through the first connecting rod 16, which increases the included angle of the connecting rod 3 and causes the support bar 2 to extend radially outward, so that the device can readjust to the size of the drain pipe. As long as the difference in inner diameter is within a certain range, the device can be used, thereby improving the practicality of the device. The high-speed impact of the crushing ball 12 strikes the crystals on the pipe wall, breaking them into small particles. These particles are then flushed out of the drain pipe by the continuously sprayed high-pressure water flow, achieving integrated dredging and sludge removal. After the operation is completed, the high-pressure water is stopped. When the high-pressure water supply stops, the centrifugal force disappears, and the elastic force of the spring 15 pushes the second rotating sleeve 8 back to the initial position. At the same time, it drives the support assembly to retract, so that the support assembly shrinks to a size smaller than the inner diameter of the drain pipe, so that the device can be removed from the pipe.

[0039] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of the invention and should not be construed as limiting the scope of protection of the invention in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of the invention without inventive effort, and these embodiments will all fall within the scope of protection of the claims of the present invention.

Claims

1. A device for clearing and removing silt from crystallized blockages in tunnel drainage pipes, characterized in that, Includes a main pipe (1), the outer wall of the main pipe (1) is fitted with a support assembly, and one end of the main pipe (1) is rotatably fitted with a crushing and flushing assembly, the support assembly being able to support the crushing and flushing assembly at the center of the drain pipe; The crushing and flushing assembly includes a first rotating sleeve (7) and a second rotating sleeve (8). The first rotating sleeve (7) is rotatably sleeved on the outer wall of the main pipe (1), and the second rotating sleeve (8) is rotatably connected to one end of the main pipe (1). A cavity (9) is opened at one end of the second rotating sleeve (8), and the end of the main pipe (1) passes through the second rotating sleeve (8) and extends into the cavity (9). A water guide hole (14) is opened on the outer wall of the main pipe (1) inside the cavity (9). An inclined hole (10) communicating with the cavity (9) is provided on the periphery of the first rotating sleeve (7) and the second rotating sleeve (8); a crushing ball (12) is provided between the first rotating sleeve (7) and the second rotating sleeve (8), and soft chains (11) are fixedly connected to both sides of the crushing ball (12). One soft chain (11) is fixedly connected to the first rotating sleeve (7), and the other soft chain (11) is fixedly connected to the second rotating sleeve (8). Adjusting the distance between the first rotating sleeve (7) and the second rotating sleeve (8) can increase or decrease the radius of rotation of the crushing ball (12); One end of the second rotating sleeve (8) is fixedly connected to an adaptive connector, and the adaptive connector is connected to the support component.

2. The tunnel drainage pipe crystallization blockage dredging and suction device according to claim 1, characterized in that, The support assembly includes a plurality of support bars (2) disposed around the main pipe (1), and each of the support bars (2) is rotatably connected to a connecting rod (3) at both ends.

3. The tunnel drainage pipe crystallization blockage dredging and suction device according to claim 2, characterized in that, The connecting rod (3) at one end of the support bar (2) is connected to the circumference of the first collar (4), and the connecting rod (3) at the other end of the support bar (2) is connected to the circumference of the second collar (5). The first collar (4) and the second collar (5) are both slidably fitted on the outer wall of the main pipe (1).

4. The tunnel drainage pipe crystallization blockage dredging and suction device according to claim 3, characterized in that, The outer wall of the first collar (4) is threaded with a bolt (6), and one end of the bolt (6) passes through the first collar (4) and abuts against the main pipe (1) to fix the first collar (4).

5. The tunnel drainage pipe crystallization blockage dredging and suction device according to claim 3, characterized in that, The adaptive connector includes a first connecting rod (16) fixedly connected to the second rotating sleeve (8), a first annular groove (21) is provided on one side wall of the second sleeve (5), a first connecting ring (17) is rotatably connected to the inner wall of the first annular groove (21), and one end of the first connecting rod (16) passes through the first rotating sleeve (7) and is fixedly connected to the first connecting ring (17).

6. The tunnel drainage pipe crystallization blockage dredging and suction device according to claim 4, characterized in that, The first rotating sleeve (7) has a second annular groove (20) on one side wall, and the inner wall of the second annular groove (20) is rotatably connected to a second connecting ring (19). The second connecting ring (19) has a second connecting rod (18) fixedly connected to one side wall. One end of the second connecting rod (18) passes through the second sleeve (5) and is connected to the first sleeve (4).

7. The tunnel drainage pipe crystallization blockage dredging and suction device according to claim 1, characterized in that, A spring (15) is provided inside the cavity (9), and a limit ring (13) is rotatably connected to the outer wall of the main pipe (1) for cooperating with the spring (15).

8. The tunnel drainage pipe crystallization blockage dredging and suction device according to claim 1, characterized in that, The axis of the inclined hole (10) forms an angle of 30° to 60° with the radial direction of the second rotating sleeve (8).

9. The tunnel drainage pipe crystallization blockage dredging and suction device according to claim 1, characterized in that, One end of the second rotating sleeve (8) is fixedly connected to a cone head (22), and the outer wall of the cone head (22) is provided with a stirring groove (23).

10. The tunnel drainage pipe crystallization blockage dredging and suction device according to claim 2, characterized in that, The number of the support bars (2) is three to six, and they are evenly distributed along the circumference of the main pipe (1).

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