Water conservancy construction grouting device

Abstract

The invention relates to the technical field of water conservancy projects, in particular to a grouting device for water conservancy construction. Comprising a slurry return pipe and a slurry return pipe, a slurry feeding barrel is arranged at the upper end of the grouting pipe and connected with the slurry returning barrel, and a vibrator is hung on the side wall of the lower end of the grouting pipe; a stirring paddle is arranged in the support and the slurry returning barrel, a driving disc is fixed to the shaft end of the stirring paddle, a driving shaft is rotationally installed on the support and located under the driving disc, a vortex disc is fixedly installed on the driving shaft, a cam is fixedly installed on the driving shaft, and the cam abuts against a warping plate rotationally installed on the support. The other end of the warping plate abuts against a lifting rod which is vertically installed on the support in a sliding mode, and the sizing barrel is installed on the lifting rod in a fastened mode. In the slurry circulating process, gas in a drill hole is promoted to flow into the slurry returning barrel through the vibrator, and circulating slurry is continuously stirred through the stirring paddle, so that the gas floats upwards and is discharged, separation in advance is achieved, the number of bubbles in grouting is reduced, and the grouting quality is improved.

Description

Technical Field

[0001] The present application relates to the technical field of water conservancy engineering, and in particular to a water conservancy construction grouting device. Background Art

[0002] Grouting is the process of pouring certain solidifying materials, such as cement, lime or other chemical materials, into the foundation rock and soil within a certain range under the foundation to fill the cracks and pores in the rock and soil, prevent foundation leakage, and improve the integrity, strength and rigidity of the rock and soil. Grouting is often used to construct a foundation anti-seepage curtain in water-retaining structures such as gates, dams, and dikes, and is the main foundation treatment measure for hydraulic structures.

[0003] Grouting is divided into pressure grouting and circulation grouting: The pressurized grouting method is to seal the wellhead of the borehole and use pump pressure to inject cement and other slurries into the borehole, which only goes in but not out. Because the borehole is relatively sealed, the pressure in the borehole gradually increases during the injection of slurry, which may cause gushing problems. In addition, cement particles in the slurry are easy to settle, which may easily cause "fixed pipe" accidents. The use scenarios are limited and limited.

[0004] The circulating grouting method is to install a circulating pipe outside the grouting pipe, the circulating pipe blocks the borehole, and the slurry injected into the borehole by the grouting pipe partially seeps down, and partially flows back into the external container along the circulating pipe under the action of pressure, and circulates while being injected into the grouting pipe. The slurry always maintains a circulating flow state, thereby reducing the probability of sedimentation and pipe solidification. However, when the slurry is circulating, the air in the borehole circulates synchronously with the slurry. If the air cannot be removed, bubbles are easily generated inside the circulating slurry after it is injected into the borehole, affecting the grouting quality.

[0005] To this end, the present application provides a hydraulic construction grouting device, which degasses the circulating slurry and the slurry injected into the borehole, reduces the amount of bubbles, and improves the grouting quality.

[0006] Application Contents The purpose of this application is to solve the problems existing in the prior art and to propose a grouting device for water conservancy construction.

[0007] In order to achieve the above purpose, this application adopts the following technical solutions: A grouting device for water conservancy construction, comprising: The return slurry pipe is inserted into the borehole and the insertion end is sealed and connected to the inner wall of the borehole. The upper end of the return slurry pipe extends out of the side wall of the borehole and is connected to a return slurry barrel through a pump. The return slurry barrel is provided with an exhaust port. The grouting pipe passes through the return grouting pipe and goes deep into the borehole. A grouting bucket is provided at the upper end of the grouting pipe. The grouting bucket is connected to the return grouting bucket via a second pump. A feed pipe is provided on the grouting bucket. A vibrator is hung on the side wall of the lower end of the grouting pipe. The bracket, the re-slurry barrel is fixedly installed on the upper end of the bracket, and a stirring paddle is arranged in the re-slurry barrel. The shaft end of the stirring paddle extends out of the re-slurry barrel and is fixed with a driving disk. A circular array at the lower end of the driving disk has multiple flat driving wheels. A driving shaft is rotatably installed on the bracket just below the driving disk, and a vortex disk cooperating with a plurality of driving wheels is fastened on the driving shaft. A cam is also fastened on the driving shaft, and the cam abuts against a seesaw rotatably installed on the bracket, and the other end of the seesaw abuts against a lifting rod vertically slidably installed on the bracket, and the slurry barrel is fastened on the lifting rod.

[0008] Preferably, the stirring paddle comprises a stirring shaft rotatably mounted on and penetrating the bottom wall of the reslurry barrel, a collar is fastened to the upper end of the stirring shaft, a plurality of spiral stirring plates are arranged in a circular array around the collar, and dry drain holes are evenly distributed on the stirring plates.

[0009] Preferably, rollers are provided at both ends of the seesaw.

[0010] Preferably, a sleeve frame is fastened to the side wall of the lower end of the slurry return pipe, and a slurry stopping plug is sleeved on the sleeve frame.

[0011] Preferably, the driving disk has a plurality of holes in a circular array, the rotating shaft of the driving wheel passes through the holes, and the upper end of the rotating shaft of the driving wheel is provided with threads, and a nut is screwed on the threads and abuts against the upper end of the driving disk.

[0012] Preferably, a support tube is fixedly mounted on the bracket, the stirring shaft passes through the support tube, and both upper and lower ports of the support tube are rotatably connected to the stirring shaft.

[0013] Preferably, a guide cylinder is fixedly mounted on the bracket, and the lifting rod is vertically slidably mounted in the guide cylinder.

[0014] Preferably, a support is movably mounted on the bracket, a rotating shaft is provided on the support, and a plurality of mounting holes cooperating with the rotating shaft are provided at intervals in the middle of the rocker.

[0015] Compared with the prior art, the present application provides a hydraulic construction grouting device, which has the following beneficial effects: During grouting, the vibrator starts to vibrate, and the slurry that seeps into the borehole generates vibration waves under the action of the vibrator, so that the slurry and the gas in the borehole gradually float up and enter the slurry return barrel along the slurry return pipe. At the same time, the motor starts to drive the drive shaft to rotate, and the drive shaft drives the vortex disk and the cam to rotate synchronously: the vortex disk drives the drive disk to rotate. The drive disk drives the stirring paddle to rotate, and stirs the slurry that flows back into the slurry return barrel. During the stirring process, the air gradually floats up and is discharged to the outside from the exhaust port of the slurry return barrel, thereby preventing the gas from penetrating into the borehole with the circulation of the slurry to form bubbles, resulting in poor grouting quality. The rotation of the cam will gradually tilt back and forth against the seesaw, thereby driving the grouting pipe and the vibrator to move back and forth vertically. The vibrator moves back and forth vertically and changes its position constantly, which improves the vibration degassing effect of the vibrator on the slurry, so as to ensure that the bubbles are eliminated as much as possible and improve the grouting quality.

[0016] Other advantages, objectives and features of the present application will be described in the following description to some extent; and will be apparent to those skilled in the art based on the following examination and study to some extent; or, may be taught from the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front axial schematic diagram of the present application.

[0018] Figure 2 This is a rear axial schematic diagram of the present application.

[0019] Figure 3 It is a front view schematic diagram of the present application.

[0020] Figure 4 It is a left view schematic diagram of this application.

[0021] Figure 5 For this application Figure 4 Schematic diagram of the cross section at AA.

[0022] Figure 6 This is a bottom-up axial schematic diagram of the present application after the bracket is removed.

[0023] Figure 7 For this application Figure 6 A three-dimensional schematic diagram after removing the pulp barrel and the return pulp barrel.

[0024] Figure 8 This is an axial schematic diagram of the driving structure of the stirring paddle and the lifting rod of the present application when viewed from above.

[0025] Fig. 9 This is a top axial schematic diagram of the driving structure of the stirring paddle and the lifting rod of the present application.

[0026] Fig.10 For this application Figure 5 Schematic diagram of the cross-section of the re-slurry barrel.

[0027] Fig.11 For this application Fig.10 Schematic diagram of the connection between the stirring shaft, support cylinder and drive disc.

[0028] Fig.12 For this application Fig.11 Schematic diagram of the coordination structure between the middle scroll plate and the driving plate.

[0029] Fig.13 This is a schematic structural diagram of the sleeve frame and the slurry stopper on the slurry return pipe of the present application.

[0030] Fig.14 Schematic diagram of the planar and three-dimensional structure of the seesaw of this application.

[0031] Fig.15 This is a schematic diagram of the scroll structure of the present application.

[0032] Fig.16 This is a schematic diagram of the usage status of this application.

[0033] In the figure: 1. bracket; 2. slurry barrel; 3. grouting pipe; 4. return slurry pipe; 5. return slurry barrel; 6. pump one; 7. pump two; 8. drive shaft; 9. stirring shaft; 10. stirring plate; 11. drive disk; 12. drive wheel; 13. vortex disk; 14. seesaw; 15. cam; 16. lifting rod; 17. support tube; 18. guide tube; 19. support; 20. sleeve; 21. slurry stop plug; 22. drilling hole; 23. vibrator; 24. exhaust port. DETAILED DESCRIPTION

[0034] The following will be combined with the attached examples of the present application Figure 1-16 , the technical solutions in the embodiments of the present application are described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0035] Embodiment 1, in order to solve the problem of a large number of bubbles generated in grouting due to air retention in the circulation grouting method, this embodiment provides a water conservancy construction grouting device, comprising: The return slurry pipe 4 is inserted into the borehole 22 and the insertion end is sealed and connected to the inner wall of the borehole 22. The upper end of the return slurry pipe 4 extends out of the side wall of the borehole 22 and is connected to the return slurry barrel 5 through a pump 6. The return slurry barrel 5 is provided with an exhaust port 24; The grouting pipe 3 passes through the return grouting pipe 4 and goes deep into the borehole 22. The upper end of the grouting pipe 3 is provided with a grouting bucket 2, which is connected to the return grouting bucket 5 via a pump 7. The grouting bucket 2 is provided with a feed pipe. A vibrator 23 is hung on the side wall of the lower end of the grouting pipe 3. The bracket 1 has a re-pulping barrel 5 fixedly mounted on the upper end of the bracket 1. A stirring paddle is arranged in the re-pulping barrel 5. The axial end of the stirring paddle extends out of the re-pulping barrel 5 and is fixed with a driving disk 11. A plurality of planar driving wheels 12 are arranged in a circular array at the lower end of the driving disk 11. A driving shaft 8 is rotatably mounted on the bracket 1 just below the driving disk 11. A vortex disk 13 cooperating with a plurality of driving wheels 12 is fastened on the driving shaft 8. A cam 15 is also fastened on the driving shaft 8. The cam 15 abuts against a seesaw 14 rotatably mounted on the bracket 1. The other end of the seesaw 14 abuts against a lifting rod 16 vertically slidably mounted on the bracket 1. The re-pulping barrel 5 is fastened on the lifting rod 16.

[0036] Principle details of this embodiment: A grouting device for water conservancy construction comprises: a bracket 1, a grouting pipe 4, a grouting pipe 3, a sizing bucket 2, and a grouting bucket 5.

[0037] The frame of the bracket 1 is formed by welding or splicing triangular irons with fasteners, and a metal plate is installed on the frame to form a loading platform. The surface of the bracket 1 is sprayed with an anti-rust layer and an anti-corrosion layer to extend the service life of the metal parts.

[0038] The bottom end of the re-slurry barrel 5 has a plurality of legs in a circular array, and the plurality of legs are fastened and mounted on the end surface of the bracket 1 via fasteners, so that the re-slurry barrel 5 is suspended on the loading surface of the bracket 1 .

[0039] The side wall of the slurry return barrel 5 is connected with two hoses at intervals, one hose is connected with a pump 1 6, and the pump 1 6 is connected to the side wall of the upper end of the slurry return pipe 4; the other hose is connected with a pump 2 7, and the pump 2 7 is connected to the side wall of the upper end of the slurry supply barrel 2.

[0040] The upper end of the sizing barrel 2 is provided with a cover, and a material port is provided on the cover, and a flexible feeding pipe is connected to the material port, and a pump 3 is externally connected to the feeding pipe for continuous slurry supply from the outside. The grouting pipe 3 is embedded in the lower end of the sizing barrel 2 through a flange structure for slurry diversion.

[0041] The return slurry pipe 4 is inserted into the end of the borehole 22, and the side wall of the return slurry pipe 4 forms a sealing structure with the inner wall of the borehole 22 to prevent the slurry from overflowing. A fastening sleeve is sleeved on the side wall of the return slurry pipe 4 extending out of the borehole 22, and the fastening sleeve is fastened to the return slurry pipe 4 by fasteners, and the fastening sleeve is also fastened to the bracket 1 by fasteners, which is used to support the return slurry pipe 4.

[0042] The grouting pipe 3 passes through the return grout pipe 4 and then is inserted into the borehole 22 .

[0043] According to the above technical solution: When in use, the slurry is injected into the slurry barrel 2 and then injected into the borehole 22 along the grouting pipe 3. The slurry accumulates in the borehole 22, and a part of the slurry seeps downward; while the other part of the slurry surges up along the return slurry pipe 4 under the pressure of the sealed environment, and is pumped into the return slurry barrel 5 by the pump 1 6. The slurry in the return slurry barrel 5 is injected into the slurry barrel 2 again under the action of the pump 2 7, and then injected into the borehole 22 again along the grouting pipe 3.

[0044] In the above process, the air in the borehole 22 is mixed with the slurry as the slurry circulates, and finally bubbles are generated in the borehole 22, which affects the grouting quality.

[0045] In order to solve the problem that the air retained in the borehole 22 penetrates into the slurry as the slurry circulates and generates bubbles, in this embodiment: A motor is fastened to the bracket 1 via fasteners, and the output shaft of the motor is connected to a reducer fastened to the bracket 1 via a chain drive. The output shaft of the reducer is connected to a drive shaft 8 via a key, and the drive shaft 8 is rotatably mounted on the bracket 1. A plurality of bearing seats and a plurality of rotation connection points are provided between the drive shaft 8 and the bracket 1 to disperse the load pressure and avoid load bending.

[0046] The drive shaft 8 is fastened with a scroll plate 13. The structure of the scroll plate 13 is shown in the attached Fig.12 and attached Fig.15 As shown, there is a guide rail with a spiral change of the same diameter. A sealed bearing seat is provided on the bottom wall of the re-slurry barrel 5, and a stirring paddle is fastened and installed in the inner ring of the bearing of the bearing seat. The stirring end of the stirring paddle penetrates into the re-slurry barrel 5, and the driving end of the stirring paddle extends downward and penetrates the working bearing surface. A driving disk 11 is fastened and installed on the driving end of the stirring paddle. A plurality of driving wheels 12 are arranged in a circular array at the lower end of the driving disk 11 near the outer edge surface. The driving wheel 12 is horizontally placed and rotatably installed on the driving disk 11, that is, the rotation axis of the driving wheel 12 is perpendicular to the ground. The vortex disk 13 is located below the driving wheel 12 and the guide rail of the vortex disk 13 is interspersed between the driving wheels 12, forming a transmission mechanism similar to a worm gear structure.

[0047] The drive shaft 8 is also fastened with a cam 15, which is spaced apart from the scroll plate 13. A seesaw 14 is rotatably mounted on the bracket 1, one end of the seesaw 14 is located directly below the cam 15, and a lifting rod 16 is abutted on the end surface of the other end of the seesaw 14, and the lifting rod 16 is slidably mounted on the loading surface of the bracket 1. A connecting plate is fastened to the upper end of the lifting rod 16, and the end of the connecting plate is fastened to the outer wall of the sizing barrel 2.

[0048] The re-slurry barrel 5 is provided with an exhaust port 24 .

[0049] A vibrator 23 is fixedly hung on the side wall of the lower end of the grouting pipe 3 , and a wire pipe is fastened to the side wall of the grouting pipe 3 . A wire is laid in the wire pipe for controlling and supplying energy to the vibrator 23 .

[0050] According to the above technical solution: During grouting, the vibrator 23 starts to vibrate, and the slurry that seeps into the borehole 22 generates vibration waves under the action of the vibrator 23, so that the slurry and the gas in the borehole 22 gradually float up and enter the slurry return barrel 5 along the slurry return pipe 4. At the same time, the motor starts to drive the drive shaft 8 to rotate, and the drive shaft 8 drives the vortex plate 13 and the cam 15 to rotate synchronously: Since the spiral guide rail of the scroll plate 13 is inserted between the driving wheels 12, when the scroll plate 13 rotates, the driving wheel 12 abuts against the guide rail side wall of the scroll plate 13 and rolls along the guide rail side wall, thereby driving the driving plate 11 to rotate. The driving plate 11 drives the stirring paddle to rotate, and stirs the slurry that flows back into the re-slurry barrel 5. During the stirring process, the air gradually floats up and is discharged to the outside from the exhaust port 24 of the re-slurry barrel 5, thereby preventing the gas from penetrating into the borehole 22 with the circulation of the slurry to form bubbles, resulting in poor grouting quality.

[0051] The cam 15 rotates and gradually tilts back and forth against the seesaw 14, and then resets under the heavy load of the sizing bucket 2 and the lifting rod 16, driving the sizing bucket 2 to lift and lower vertically, and then driving the grouting pipe 3 and the vibrator 23 to move back and forth vertically. The vibrator 23 moves back and forth vertically without changing its position, and the vibrator 23 is adjusted to increase the vibration degassing effect of the slurry to ensure that bubbles are eliminated as much as possible, thereby improving the grouting quality.

[0052] In summary, during the slurry circulation process, the vibrator 23 is used to promote the gas in the borehole 22 to flow into the return slurry barrel 5, and the circulating slurry is continuously stirred by the stirring paddle, so that the gas floats up and is discharged from the exhaust port 24, achieving early separation, thereby reducing the number of bubbles in the grouting and improving the grouting quality.

[0053] In this embodiment, preferably, a discharge pipe is provided at the bottom of the return slurry pipe 4, and electric valves are provided between the discharge pipe and the bottom of the return slurry pipe 4, and between the grouting pipe 3 and the slurry barrel 2 to control the opening and closing of the pipe opening and the material conveying state. The discharge pipe is used to clean and discharge waste from the return slurry barrel 5.

[0054] Embodiment 2, in a further embodiment of the present scheme, the stirring paddle comprises a stirring shaft 9 which is rotatably mounted on the bottom wall of the reslurry barrel 5 and penetrates the bottom wall of the reslurry barrel 5, a collar is fastened to the upper end of the stirring shaft 9, and a plurality of spiral stirring plates 10 are arranged in a circular array around the collar, and the stirring plates 10 are evenly distributed with dry leak holes.

[0055] Principle details of this embodiment: The stirring paddle includes a stirring shaft 9, a collar, and a stirring plate 10: The stirring shaft 9 is fixedly mounted in the inner ring of the bearing of the axial bearing seat on the bottom wall of the re-slurry barrel 5. The upper end of the stirring shaft 9 extends into the re-slurry barrel 5, the collar is fixedly mounted on the upper end of the stirring barrel, and the stirring plates 10 are fixedly mounted on the side wall of the collar in an annular array. The lower end of the stirring shaft 9 passes through the bearing surface of the bracket 1, and the driving disc 11 is fixedly mounted on the lower end of the stirring shaft 9.

[0056] According to the above technical solution: The driving disk 11 drives the stirring shaft 9 to rotate, and the stirring shaft 9 drives all the stirring plates 10 to rotate through the sleeve ring. Since the stirring plates 10 are spiral, they will form an upward lifting effect while stirring, so that the slurry in the slurry return barrel 5 will show an effect of stirring and surging at the same time. In combination with a plurality of leakage holes, the residual gas in the slurry can be separated more cleanly and thoroughly, thereby improving the degassing effect.

[0057] In this embodiment, the driving disk 11 has an inner hole at its axis, and the lower end of the stirring shaft 9 passes through the driving disk 11. A cover is screw-fastened to the lower end of the stirring shaft 9, and the cover abuts against the lower end surface of the driving disk 11. The stirring shaft 9 has a convex edge, and the upper end of the driving disk 11 abuts against the convex edge and cooperates with the cover, thereby realizing a detachable connection between the driving disk 11 and the stirring shaft 9, which is convenient for maintenance and disassembly.

[0058] Embodiment 3, in a further embodiment of this scheme, rollers are provided at both ends of the seesaw 14. The rollers are respectively connected to the bottom end of the lifting rod 16 and the side wall of the cam 15, and the rolling friction of the rollers after being subjected to force replaces the original contact surface friction, thereby reducing wear.

[0059] Embodiment 4, in a further embodiment of this scheme, a sleeve frame 20 is fastened to the side wall of the lower end of the slurry return pipe 4, and a slurry stopper 21 is sleeved on the sleeve frame 20. The slurry stopper 21 is a rubber sealing plug. Fig.16 As shown, the sleeve 20 is embedded in the drill hole, and the slurry stopper 21 is against the side wall of the drill hole 22, thereby closing the end of the drill hole 22, so that a unique slurry flow channel is formed between the drill hole 22 and the slurry return pipe 4, avoiding the slurry from overflowing from the drill hole 22 during grouting.

[0060] In this embodiment, preferably, two sleeves 20 are vertically spaced apart on the slurry return pipe 4, the size of the upper sleeve 20 is larger than that of the lower sleeve 20, and a slurry stopper 21 is sleeved on the lower sleeve 20 to match the diameter of the borehole 22. When in use, the lower sleeve 20 extends into the borehole, and the borehole 22 is closed by the slurry stopper 21; the upper sleeve 20 is against the end surface of the borehole to improve the stable limit of the slurry return pipe 4.

[0061] Embodiment 5, in a further embodiment of the present scheme, the driving disk 11 has a plurality of holes in a circular array, the rotating shaft of the driving wheel 12 passes through the holes and the upper end of the rotating shaft of the driving wheel 12 is provided with a thread, and a nut is screwed on the thread to abut against the upper end of the driving disk 11.

[0062] According to the above technical solution: The rotating shaft of the driving wheel 12 is divided into two parts: an optical axis and a threaded shaft. A limiting boss is provided between the optical axis and the driving shaft 8 for component separation. The wheel body of the driving wheel 12 is rotatably mounted on the optical axis. The threaded shaft passes through the insertion hole from the bottom of the driving disk 11 and is screwed with a nut. The nut is against the upper end surface of the driving disk 11, thereby fastening the driving wheel 12 to the driving disk 11, realizing the detachable installation of the driving wheel 12, which is convenient for disassembly, repair or replacement after damage.

[0063] Embodiment 6, in a further embodiment of the present scheme, a support tube 17 is fixedly mounted on the bracket 1, the stirring shaft 9 passes through the support tube 17, and both upper and lower ports of the support tube 17 are rotatably connected to the stirring shaft 9.

[0064] Principle details of this embodiment: A support tube 17 is embedded on the bearing surface of the support frame, and the support tube 17 is fastened to the support bearing surface by fasteners. The stirring shaft 9 passes through the support tube 17, and shoulders are provided at the upper and lower ends of the support tube 17 on the stirring shaft 9, and bearings are provided at the shoulders. The two bearings are respectively embedded in the inner walls of the upper and lower ends of the support tube 17, so as to realize the rotation connection between the upper and lower ends of the support tube 17 and the stirring shaft 9, and two auxiliary support points are added to the stirring shaft 9 to improve the stirring stability of the stirring shaft 9. A thread is provided on the stirring shaft 9 at the lower part of the support tube 17, and a nut is screwed on the thread, and the nut rests on the lower end surface of the inner ring of the lower bearing, so as to achieve the limit through the support tube 17, the bearing, and the shoulder of the stirring shaft 9.

[0065] Embodiment 7, in a further embodiment of the present invention, a guide cylinder 18 is fixedly mounted on the bracket 1, and the lifting rod 16 is vertically slidably mounted in the guide cylinder 18.

[0066] Principle details of this embodiment: A through hole is provided on the bearing surface of the bracket 1. A support tube 17 is fastened and installed on the bearing surface of the bracket 1 at the upper end of the through hole through a fastener. A lifting rod 16 is inserted through the support tube 17. A spline groove is provided on the inner wall of the support tube 17. A spline is embedded on the outer wall of the lifting rod 16. Through the cooperation of the spline groove and the spline, a vertical sliding cooperation is achieved between the support tube 17 and the lifting rod 16, and then a vertical sliding cooperation is achieved between the lifting rod 16 and the bracket 1. In addition, the contact area between the lifting rod 16 and the bracket 1 is expanded by the support tube 17, thereby improving the support strength of the lifting rod 16 when it moves vertically to avoid lateral deviation.

[0067] In this embodiment, the lifting rod 16 is provided with a reducing section at the position above the supporting tube 17, and the diameter of the reducing section is larger than the inner diameter of the supporting tube 17, thereby limiting the minimum descending height of the lifting rod 16, and preventing the load of components such as the sizing barrel 2 from being entirely transmitted to the seesaw 14 through the lifting rod 16. The seesaw 14 is subjected to force only when it is tilted. In the non-use stage, the lifting rod 16 is placed on the supporting tube 17 through the reducing section, and the seesaw 14 is not subjected to force, thereby reducing the continuous force time of the seesaw 14 and increasing the service life of the seesaw 14.

[0068] Embodiment 8, in a further embodiment of the present invention, a support 19 is movably mounted on the bracket 1, a rotation axis is disposed on the support 19, and a plurality of mounting holes cooperating with the rotation axis are disposed at intervals in the middle of the rocker 14.

[0069] Principle details of this embodiment: A lead screw is rotatably mounted on the bracket 1, and the lead screw is threadedly matched with the support 19, so that the support 19 can be connected to the bracket 1. Alternatively, a plurality of mounting holes are provided at intervals on the mounting plate of the support 19 on the bracket 1, and the support 19 can be shifted between the mounting holes by fastener installation. The purpose of the movable installation of the support 19 is to change the rotation center of the seesaw 14, that is, the relative distance between the rotation center of the seesaw 14 and the lifting rod 16 and the cam 15, change the length of the force arm, and thus change the rising amplitude of the seesaw 14 lifting the lifting rod 16, so as to change the lifting amplitude of the vibrator 23 within a certain range, and adaptively change the vibration depth in the borehole 22 to adapt to the degassing of the borehole 22 of different depths.

[0070] This solution changes the lifting range of the vibrator 23 by cooperating with the cam 15 and the seesaw 14, and is suitable for relatively shallow boreholes 22. For deeper boreholes 22, in order to ensure the degassing effect, grouting needs to be started from the bottom of the borehole 22. However, after grouting to a certain depth, the slurry squeezes the grouting pipe 3, and the grouting pipe 3 is squeezed and easily deformed. Therefore, a structure can also be set to replace the cam 15, the seesaw 14, and the lifting rod 16, that is, the matching structure: a reel is set on the drive shaft 8, a steel strand is arranged in the reel, and a hook is arranged at the end of the steel strand, and a hydraulic lifter is stably installed on the bracket 1 or the ground, and a roller is arranged at the upper end of the hydraulic lifter, and the steel strand extends from the reel and droops after passing around the roller, and is hung by the sizing bucket 2 through the hook. In this way, when the drive shaft 8 rotates, the drive reel continuously reels the steel strand, so that the sizing bucket 2 and the grouting pipe 3 continue to rise. In this way, the deeper borehole 22 can be degassed from bottom to top to ensure complete degassing, and the grouting pipe 3 can be prevented from being continuously pressurized.

[0071] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed in the present application according to the technical solution and application concept of the present application, which should be covered by the protection scope of the present application.

[0072] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0073] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A grouting device for water conservancy construction, characterized in that: include: A slurry return pipe (4) is inserted into the borehole (22) and the inserted end is sealedly connected to the inner wall of the borehole (22); the upper end of the slurry return pipe (4) extends out of the side wall of the borehole (22) and is connected to a slurry return barrel (5) via a pump (6); and an exhaust port (24) is provided on the slurry return barrel (5); A grouting pipe (3) passes through the return grouting pipe (4) and penetrates into the borehole (22). A grouting bucket (2) is provided at the upper end of the grouting pipe (3). The grouting bucket (2) is connected to the return grouting bucket (5) via a second pump (7). A feed pipe is provided on the grouting bucket (2). A vibrator (23) is hung on the side wall of the lower end of the grouting pipe (3). A bracket (1) is provided, wherein a pulp return barrel (5) is fixedly mounted on the upper end of the bracket (1), a stirring paddle is arranged in the pulp return barrel (5), an axial end of the stirring paddle extends out of the pulp return barrel (5) and is fixed with a driving disk (11), a plurality of planar driving wheels (12) are arranged in an annular array at the lower end of the driving disk (11), a driving shaft (8) is rotatably mounted on the bracket (1) and a vortex disk (13) matched with a plurality of driving wheels (12) is fixedly mounted on the driving shaft (8), a cam (15) is also fixedly mounted on the driving shaft (8), the cam (15) abuts against a seesaw (14) rotatably mounted on the bracket (1), the other end of the seesaw (14) abuts against a lifting rod (16) vertically slidably mounted on the bracket (1), and the sizing barrel (2) is fixedly mounted on the lifting rod (16).

2. A grouting device for water conservancy construction according to claim 1, characterized in that: The stirring paddle comprises a stirring shaft (9) rotatably mounted on the bottom wall of the reslurry barrel (5) and penetrating the bottom wall of the reslurry barrel (5); a collar is fastened to the upper end of the stirring shaft (9); a plurality of spiral stirring plates (10) are arranged in an annular array around the collar; and dry leak holes are evenly distributed on the stirring plates (10).

3. A grouting device for water conservancy construction according to claim 1, characterized in that: Rollers are provided at both ends of the seesaw (14).

4. A grouting device for water conservancy construction according to claim 1, characterized in that: A sleeve frame (20) is fastened to the side wall of the lower end of the slurry return pipe (4), and a slurry stopper plug (21) is sleeved on the sleeve frame (20).

5. A grouting device for water conservancy construction according to claim 1, characterized in that: The drive disk (11) has a plurality of insertion holes in a circular array, the rotating shaft of the drive wheel (12) passes through the insertion holes, and the upper end of the rotating shaft of the drive wheel (12) is provided with a thread, and a nut is screwed onto the thread and abuts against the upper end of the drive disk (11).

6. A grouting device for water conservancy construction according to claim 2, characterized in that: A support tube (17) is fixedly mounted on the bracket (1), the stirring shaft (9) passes through the support tube (17), and both upper and lower ports of the support tube (17) are rotatably connected to the stirring shaft (9).

7. A grouting device for water conservancy construction according to claim 1, characterized in that: A guide cylinder (18) is fixedly mounted on the bracket (1), and the lifting rod (16) is vertically slidably mounted in the guide cylinder (18).

8. A grouting device for water conservancy construction according to claim 1, characterized in that: A support (19) is movably mounted on the bracket (1), a rotation shaft is provided on the support (19), and a plurality of mounting holes cooperating with the rotation shaft are provided at intervals in the middle of the seesaw (14).

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