Cement paste grouting type barrier wall construction device

Abstract

The invention discloses a cement paste grouting type barrier wall construction device, and belongs to the technical field of barrier wall construction. The device comprises a discharging pipe, a lower conveying pipe and an upper conveying pipe which are sequentially connected and communicated from bottom to top, a spiral material guide mechanism is fixed on the inner wall of the lower conveying pipe, and an impeller transmission mechanism is connected below the spiral material guide mechanism; the spiral guide mechanism comprises a spiral guide plate; the impeller transmission mechanism comprises a rotating impeller, and the bottom discharging end of the spiral flow guide plate is obliquely opposite to the rotating impeller; and the rotary impeller is externally connected with a concrete vibrating rod mechanism through a transmission pair. In the specific application, cement slurry is injected from the upper conveying pipe, and is directionally guided through the spiral guiding effect of the spiral guide plate, so that the slurry is discharged from the discharging end of the spiral guide plate and generates oblique impact force on the rotating impeller, and then the impeller is driven to rotate; the transmission mechanism drives a vibration unit in the concrete vibration rod mechanism to rotate to generate vibration, and bubbles in cement paste or polymer slurry in the grouting process are discharged in a vibration mode.

Description

Technical Field

[0001] The invention relates to the technical field of barrier wall construction, in particular to a cement slurry grouting type barrier wall construction device. Background Art

[0002] Pollutant barrier walls (also called anti-seepage walls, water-blocking walls or pollution isolation walls) are a type of civil engineering facility set up to prevent the spread of groundwater pollution or block the penetration of water pollutants. They are widely used in water conservancy, environmental protection, landfills, chemical storage areas and other places. The method of constructing water pollution barrier walls mainly depends on the design requirements of the wall, geological conditions, construction environment and the selected materials.

[0003] In areas where the soil or rock is loose and has large pores (such as sandy soil, loose sand layers, etc.), traditional water pollution isolation walls (such as concrete walls) may be difficult to achieve the desired effect, because the soil permeability is strong under these geological conditions. For some areas that require deeper anti-seepage (such as places with deeper pollution sources or deeper groundwater layers), the grouting method can form an anti-seepage barrier in the deeper underground layer through deep hole grouting technology. The grouting method can effectively prevent pollutants from spreading in deeper water and soil.

[0004] During the grouting process, bubbles will be mixed inside the cement slurry or polymer slurry. The existing technology mainly uses concrete vibrators to vibrate and expel bubbles. The main working principle of the concrete vibrator is to use the high-speed vibration generated by the rotation of the eccentric wheel structure to expel bubbles from the concrete. In the case of a deep foundation pit, the transmission shaft of the vibrator is long, which will cause kinetic energy loss. At the same time, a large driving force is required to produce the expected amplitude effect, resulting in a larger driving unit power and more energy consumption, so structural optimization is needed. Summary of the invention

[0005] 1. Technical problems to be solved by the invention:

[0006] In view of the problem that bubbles may be mixed inside the barrier wall during grouting during the prior art construction, the present invention provides a cement slurry grouting barrier wall construction device, which fully utilizes the deadweight of the cement slurry during grouting, and uses the spiral guidance of the spiral guide plate to impact and rotate the rotating impeller, thereby driving the vibration of the concrete vibrator mechanism, thereby achieving the effect of vibrating and discharging the bubbles in the cement slurry or polymer slurry during the grouting process without the need for a vibrator.

[0007] 2. Technical solution:

[0008] In order to achieve the above object, the technical solution provided by the present invention is:

[0009] A cement slurry grouting barrier wall construction device comprises a discharge pipe, a lower conveying pipe and an upper conveying pipe which are sequentially connected and communicated from bottom to top; a spiral guide mechanism is fixed to the inner wall of the lower conveying pipe, and an impeller transmission mechanism is connected below the spiral guide mechanism; the spiral guide mechanism comprises a spiral guide plate; the impeller transmission mechanism comprises a rotating impeller, and the bottom discharge end of the spiral guide plate is obliquely opposite to the rotating impeller; the rotating impeller is externally connected to a concrete vibrating rod mechanism through a transmission pair. In a specific application, cement slurry is injected from the upper conveying pipe, and the slurry is directed and guided by the spiral guiding action of the spiral guide plate, so that the slurry is discharged from the discharge end of the spiral guide plate, and an oblique impact force is generated on the rotating impeller, thereby driving the rotating impeller to rotate, and the transmission mechanism drives the vibration unit inside the concrete vibrating rod mechanism to rotate and vibrate, and the bubbles in the cement slurry or polymer slurry during the grouting process are vibrated and discharged.

[0010] A further technical solution is that the transmission pair is a gear pair, which multiplies the rotation speed and drives the vibration unit to rotate at a high speed to generate high-frequency vibration, thereby improving the bubble vibration discharge efficiency.

[0011] A further technical solution is that a telescopic hose is connected and communicated between the lower conveying pipe and the upper conveying pipe; a piston pressurizing mechanism is fixedly connected to the outer wall of the upper conveying pipe, and the telescopic hose and the piston pressurizing mechanism cooperate to provide a downward impact airflow to the interior of the upper conveying pipe, thereby preventing the slurry from accumulating on the top of the spiral guide plate.

[0012] A further technical solution is that the piston pressurizing mechanism includes an annular piston chamber which is sleeved on the bottom opening of the outer wall of the upper delivery pipe, and a piston ring is connected to the annular piston chamber in a lifting and sliding manner through an elastic support mechanism; the cavity above the piston ring is connected to the air intake pipe and is connected to the upper delivery pipe through the exhaust pipe, and one-way control valves are provided on the outside of the air intake pipe and the exhaust pipe.

[0013] A further technical solution is that the elastic support mechanism includes a support slide rod, and a first support block and a second support block respectively fixed to the upper outer wall of the lower conveying pipe and the bottom outer wall of the upper conveying pipe, respectively at the lower and upper ends of the telescopic hose; one end of the support slide rod is connected to the surface of the first support block, and the other end passes through the second support block and is connected to the bottom end surface of the piston ring; the support slide rod body between the piston ring and the second support block and between the second support block and the first support block is respectively surrounded by a third return spring and a first return spring; the two ends of the third return spring and the first return spring are respectively pressed against the piston ring and the second support block and between the second support block and the first support block.

[0014] A further technical solution is that the spiral material guiding mechanism also includes a first support frame and a second support frame respectively fixed to the inner wall of the upper conveying pipe and the discharge pipe, the frame cores of the first support frame and the second support frame are jointly penetrated and slidably connected with a central sliding rod, the bottom end of the spiral guide plate is connected to the first support plate, after the central sliding rod penetrates the spiral guide plate, the rod body is tightly connected to the first support plate; the spiral guide plate is displaced downward by the impact force of the falling cement slurry; a second return spring sleeved on the rod body of the central sliding rod is provided at the bottom of the first support plate, and a sleeve is provided at the bottom of the second return spring The second support plate is on the central slide rod body, and the central slide rod moves downward with the spiral guide plate and drives the first support plate to compress the second return spring; the impeller transmission mechanism also includes a central sleeve sleeved on the central slide rod body, and the rotating impeller is fixed on the tube wall of the central sleeve; the top inclined surface of the rotating impeller is obliquely opposite to the outlet end of the spiral guide plate; a limiting ring is provided on the outer wall of the bottom of the central sleeve, and the bottom of the limiting ring is fitted with the top of the second support frame, and the central sleeve is rotated with the central slide rod as the central axis under the directional impact of the cement slurry sliding down from the outlet end of the spiral guide plate.

[0015] A further technical solution is that an extended connecting ring cavity is sealed and connected on the outer wall of the connection between the discharge pipe and the lower conveying pipe; a connecting frame that is tightly connected to the center sleeve is provided on the top of the rotating impeller, and a mounting ring is tightly connected to the far end of the connecting frame, and a gear ring is provided on the outer edge of the mounting ring. The bottom of the mounting ring rotates in fit with the top surface of the discharge pipe, and a transmission shaft is vertically arranged in the extended connecting ring cavity, and a gear is sleeved on the shaft body of the transmission shaft, and the gear is meshingly connected to the gear ring, and the outer diameter of the mounting ring is larger than the outer diameter of the gear; the concrete vibrator mechanism is at the bottom of the extended connecting ring cavity and is transmission-connected to the transmission shaft.

[0016] According to a further technical solution, the bottom of the second support plate fits with the top of the center sleeve; when the rotating impeller drives the center sleeve to rotate, the center sleeve rotates and moves relative to the second support plate. When the second return spring is compressed, the second support plate at its lower end maintains a stable position structure.

[0017] A further technical solution is that the limit ring is supported by the top of the second support frame, and the position of the center sleeve and the rotating impeller is further limited by the limitation of the limit ring. The top of the center sleeve further limits the second support plate. When the spiral guide plate moves downward, the rebound force of the second return spring drives the spiral guide plate to move in the opposite direction as a whole.

[0018] A further technical solution is that when the second return spring is compressed, a downward pushing force is generated on the second support plate, and the force is further transmitted to the position of the center sleeve through the second support plate, driving the mounting ring to move downward, and the discharge pipe and the lower conveying pipe are driven to move downward as a whole through the mounting ring, thereby driving the concrete vibrator mechanism to move downward, and the first return spring and the third return spring are compressed through the downward displacement of the lower conveying pipe, and the piston ring at the top of the support slide rod is driven to move up and down.

[0019] 3. Beneficial effects

[0020] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0021] The cement slurry grouting barrier wall construction device of the present invention utilizes the impact force generated by the cement slurry or polymer slurry due to its own gravity in the process of falling during the grouting process, which drives the rotating impeller to rotate, and drives the gear to rotate through the force transmission, and then drives the vibration unit of the concrete vibration rod mechanism to rotate and vibrate, thereby realizing the function of vibrating and discharging the bubbles in the cement slurry or polymer slurry during the grouting process, optimizing the requirements of the long transmission shaft and the high-power drive unit in the existing structure, and the concrete vibration rod mechanism is driven by the impact force to vibrate up and down following the discharge pipe, so that in the process of discharging bubbles, the position of the concrete vibration rod mechanism is adjusted, thereby improving the exhaust efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional schematic diagram of the overall structure of a specific embodiment;

[0023] Figure 2 is a three-dimensional structural cross-sectional view of a specific embodiment;

[0024] Figure 3 is an enlarged schematic diagram of the connection structure between the elastic support mechanism and the spiral material guide mechanism of a specific embodiment;

[0025] Figure 4 is an enlarged cross-sectional view of the internal structure of the piston pressurizing mechanism of a specific embodiment;

[0026] Figure 5 It is an enlarged schematic diagram of the connection structure between the spiral material guide mechanism and the impeller transmission mechanism of a specific embodiment;

[0027] Figure 6 yes Figure 5 A schematic diagram of the structure at A;

[0028] Figure 7 It is a schematic diagram of the structural decomposition of the impeller transmission mechanism of a specific embodiment.

[0029] In the figure: 1, discharge pipe; 2, concrete vibrating rod mechanism; 3, extended connecting ring cavity; 4, lower conveying pipe; 5, first support block; 6, telescopic hose; 7, support slide bar; 8, second support block; 9, annular piston cavity; 10, upper conveying pipe; 11, clamping and positioning mechanism; 12, exhaust pipe; 13, intake pipe; 14, piston ring; 15, first support frame; 16, center slide bar; 17, first return spring; 18, spiral guide plate; 19, rotating impeller; 20, second support frame;

[0030] 21. Mounting ring; 22. First support plate; 23. Second return spring; 24. Second support plate; 25. Third return spring; 26. Gear; 27. Transmission shaft; 28. Gear ring; 29. ​​Limiting ring; 30. Connecting frame; 31. Center sleeve. DETAILED DESCRIPTION

[0031] In order to further understand the content of the present invention, the invention is described in detail with reference to the accompanying drawings.

[0032] Example 1

[0033] The cement slurry grouting type barrier wall construction device of this embodiment is as follows Figure 1 , 2 As shown, it includes a discharge pipe 1, a lower conveying pipe 4 and an upper conveying pipe 10 which are connected and communicated from bottom to top in sequence; a spiral material guide mechanism is fixed on the inner wall of the lower conveying pipe 4, and an impeller transmission mechanism is connected below the spiral material guide mechanism; the spiral material guide mechanism includes a spiral guide plate 18; the impeller transmission mechanism includes a rotating impeller 19, and the bottom discharge end of the spiral guide plate 18 is obliquely opposite to the rotating impeller 19; the rotating impeller 19 is externally connected to the concrete vibrating rod mechanism 2 through a transmission pair. The transmission pair can be a mechanism such as a gear pair or a ball screw pair that can convert rotation into up and down lifting vibration.

[0034] In the cement slurry grouting barrier wall construction device of this embodiment, in specific applications, cement slurry is injected from the upper conveying pipe 10, and the spiral guiding action of the spiral guide plate 18 is used to directionally guide the slurry, so that the slurry is discharged from the discharge end of the spiral guide plate 18, and an oblique impact force is generated on the rotating impeller 19, thereby driving the rotating impeller 19 to rotate, and the transmission mechanism drives the vibration unit inside the concrete vibrator rod mechanism 2 to rotate and generate vibration, so as to vibrate and discharge the bubbles in the cement slurry or polymer slurry during the grouting process.

[0035] Example 2

[0036] The cement slurry grouting type barrier wall construction device of this embodiment has the same basic structure as that of embodiment 1, except that: Figure 1 , 2As shown in , 6, the transmission pair is a gear pair, which multiplies the rotation speed, drives the vibration unit to rotate at high speed to generate high-frequency vibration, and improves the efficiency of bubble vibration discharge. A telescopic hose 6 is also connected and communicated between the lower delivery pipe 4 and the upper delivery pipe 10; a piston pressurizing mechanism is fixedly connected to the outer wall of the upper delivery pipe 10, and the telescopic hose 6 and the piston pressurizing mechanism cooperate to provide a downward impact airflow to the interior of the upper delivery pipe 10, thereby preventing the slurry from accumulating on the top of the spiral guide plate 18.

[0037] like Figure 2 , 4 As shown, the piston pressurizing mechanism includes an annular piston chamber 9 which is sleeved on the bottom opening of the outer wall of the upper delivery pipe 10, and a piston ring 14 is connected to the annular piston chamber 9 in a lifting and sliding manner through an elastic support mechanism; the cavity above the piston ring 14 is connected to the intake pipe 13 and is connected to the upper delivery pipe 10 through the exhaust pipe 12, and the outer sides of the intake pipe 13 and the exhaust pipe 12 are both provided with one-way control valves.

[0038] The elastic support mechanism includes a support slide bar 7, and a first support block 5 and a second support block 8 respectively fixed to the upper outer wall of the lower conveying pipe 4 and the bottom outer wall of the upper conveying pipe 10, which are arranged at the lower and upper ends of the telescopic hose 6, and the double support blocks form a supporting effect of the overall device; one end of the support slide bar 7 is connected to the surface of the first support block 5, and the other end passes through the second support block 8 and is connected to the bottom end surface of the piston ring 14; the rod body of the support slide bar 7 between the piston ring 14 and the second support block 8 and the second support block 8 and the first support block 5 is respectively surrounded by a third return spring 25 and a first return spring 17; the two ends of the third return spring 25 and the first return spring 17 are respectively pressed against the piston ring 14 and the second support block 8 and the second support block 8 and the first support block 5; the second support block 8 cooperates with the first return spring 17 to form a supporting effect on the upper conveying pipe 10 above the telescopic hose 6 and the first support block 5 cooperates with the third return spring 25 to support the lower conveying pipe 4 below the telescopic hose 6 as a whole.

[0039] like Figure 2 , 3As shown, the spiral material guiding mechanism also includes a first support frame 15 and a second support frame 20 respectively fixed to the inner wall of the upper conveying pipe 10 and the discharge pipe 1, the frame cores of the first support frame 15 and the second support frame 20 are jointly penetrated and slidably connected with a central slide bar 16, the bottom end of the spiral guide plate 18 is connected with a first support plate 22, after the central slide bar 16 penetrates the spiral guide plate 18, the rod body is tightly connected to the first support plate 22; the spiral guide plate 18 is displaced downward by the impact force of the falling cement slurry; the bottom of the first support plate 22 is provided with a second return spring 23 sleeved on the rod body of the central slide bar 16, and the bottom of the second return spring 23 is provided with a spring sleeved on the central slide bar 16 rod body, the center slide bar 16 moves downward with the spiral guide plate 18 and drives the first support plate 22 to compress the second return spring 23; the impeller transmission mechanism also includes a center sleeve 31 which is sleeved on the rod body of the center slide bar 16, and the rotating impeller 19 is fixed on the tube wall of the center sleeve 31; the top inclined surface of the rotating impeller 19 is obliquely opposite to the outlet end of the spiral guide plate 18; a limiting ring 29 is provided on the outer wall of the bottom of the center sleeve 31, and the bottom of the limiting ring 29 is in contact with the top of the second support frame 20, and the center sleeve 31 is subjected to the directional impact of the cement slurry sliding down from the outlet end of the spiral guide plate 18 and rotates with the center slide bar 16 as the center axis.

[0040] like Figure 1 , 2 As shown in Figures 5, 6 and 7, an extended connecting ring cavity 3 is sealed and connected to the outer wall of the connection between the discharge pipe 1 and the lower conveying pipe 4; a connecting frame 30 that is tightly connected to the center sleeve 31 is provided on the top of the rotating impeller 19, and a mounting ring 21 is tightly connected to the distal end of the connecting frame 30, and a gear ring 28 is provided on the outer edge of the mounting ring 21. The bottom of the mounting ring 21 rotates in contact with the top surface of the discharge pipe 1, and a transmission shaft 27 is vertically arranged in the extended connecting ring cavity 3. The shaft body of the transmission shaft 27 is sleeved with a gear 26, and the gear 26 is meshed and connected with the gear ring 28, and the outer diameter of the mounting ring 21 is larger than the outer diameter of the gear 26; the concrete vibrating rod mechanism 2 is at the bottom of the extended connecting ring cavity 3 and is transmission-connected to the transmission shaft 27.

[0041] The bottom of the second support plate 24 fits with the top of the center sleeve 31; when the rotating impeller 19 rotates and drives the center sleeve 31 to rotate, the center sleeve 31 rotates and moves relative to the second support plate 24. When the second return spring 23 is compressed, the second support plate 24 at its lower end maintains a stable position structure.

[0042] The limiting ring 29 is supported by the top of the second support frame 20. The limiting ring 29 further limits the positions of the center sleeve 31 and the rotating impeller 19. The top of the center sleeve 31 further limits the second support plate 24. When the spiral guide plate 18 moves downward, the rebound force of the second return spring 23 drives the spiral guide plate 18 to move in the opposite direction as a whole.

[0043] When the second return spring 23 is compressed, a downward pushing force is generated on the second support plate 24, and the force is further transmitted to the position of the center sleeve 31 through the second support plate 24, driving the mounting ring 21 to move downward, and the discharge pipe 1 and the lower conveying pipe 4 are driven to move downward as a whole through the mounting ring 21, thereby driving the concrete vibrating rod mechanism 2 to move downward, and the first return spring 17 and the third return spring 25 are compressed through the downward displacement of the lower conveying pipe 4, and the piston ring 14 at the top of the support slide rod 7 is driven to move up and down.

[0044] Example 3

[0045] The cement slurry grouting type barrier wall construction device of this embodiment has the same basic structure as that of embodiment 2, and is further expanded in specific structure: Figure 1-7 As shown, the whole device includes a discharge pipe 1, a lower conveying pipe 4 is arranged on the top of the discharge pipe 1, a telescopic hose 6 is arranged on the top of the lower conveying pipe 4, an upper conveying pipe 10 is arranged on the top of the telescopic hose 6, and a clamping and positioning mechanism 11 is clamped on the top of the outer side of the upper conveying pipe 10. The clamping and positioning mechanism 11 can be a clamping ring, which is sleeved and fixed on the outer wall of the upper conveying pipe 10.

[0046] An extended connection ring cavity 3 is formed between the outer side of the top of the discharge pipe 1 and the outer side of the bottom of the lower delivery pipe 4, which are tightly and sealedly connected.

[0047] A piston pressurizing mechanism is arranged at the bottom of the outer side of the upper delivery pipe 10 near the telescopic hose 6, and the piston pressurizing mechanism includes a piston ring 14. An elastic supporting mechanism is arranged between the top of the outer side of the lower delivery pipe 4 and the bottom of the outer side of the upper delivery pipe 10. The elastic supporting mechanism includes a supporting slide bar 7. The top of the supporting slide bar 7 is tightly connected to the bottom of the piston ring 14. When the supporting slide bar 7 moves up and down, the piston ring 14 is driven to follow the upper and lower piston displacement.

[0048] The elastic support mechanism also includes a plurality of first support blocks 5 uniformly distributed on the upper outer side of the lower delivery pipe 4, the top surfaces of the first support blocks 5 are all supported by support slide bars 7, a plurality of second support blocks 8 are uniformly distributed on the bottom outer side of the upper delivery pipe 10, the top ends of the support slide bars 7 are all penetrated to the top of the second support blocks 8, the rod bodies of the support slide bars 7 located between the second support blocks 8 and the first support blocks 5 are all sleeved with first return springs 17, the rod bodies of the support slide bars 7 located at the top of the second support blocks 8 are all sleeved with third return springs 25, the piston pressurizing mechanism also includes an annular piston cavity 9 sleeved on the bottom of the outer wall of the upper delivery pipe 10, the tops of the support slide bars 7 are all sleeved from the bottom of the annular piston cavity 9 The annular piston chamber 9 has a piston ring 14 fixedly connected to the top of the support slide bar 7. The top of the annular piston chamber 9 is evenly distributed with several groups of exhaust pipes 12 extending to the interior of the upper delivery pipe 10. The exhaust pipe 12 is located at one end of the upper delivery pipe 10 and is inclined downward to prevent the slurry from entering the annular piston chamber 9 from top to bottom during grouting. At the same time, the airflow discharged from the exhaust pipe 12 exerts a downward push on the mud; the top of the wall of the annular piston chamber 9 is provided with an air inlet pipe 13 connected to the interior of the annular piston chamber 9, and the outer walls of the air inlet pipe 13 and the exhaust pipe 12 are both provided with one-way control valves.

[0049] A spiral material guiding mechanism is arranged at the top of the lower conveying pipe 4, and the spiral material guiding mechanism includes a spiral guide plate 18. An impeller transmission mechanism is arranged at the top of the discharge pipe 1, directly below the spiral guide plate 18. The impeller transmission mechanism includes a rotating impeller 19, and the cement slurry slides along the spiral guide plate 18 to push the rotating impeller 19 to rotate.

[0050] The spiral material guiding mechanism also includes a first support frame 15 arranged at the bottom of the upper conveying pipe 10, and a second support frame 20 is arranged at the bottom of the discharge pipe 1. A central slide bar 16 is commonly penetrated at the center position of the first support frame 15 and the second support frame 20. A spiral guide plate 18 is arranged on the top of the rod body of the central slide bar 16. The spiral guide plate 18 is displaced downward by the impact force of the falling cement slurry. A first support plate 22 is arranged at the bottom of the spiral guide plate 18 and is sleeved on the outside of the central slide bar 16. The first support plate 22 is fastened to the central slide bar 16. A second return spring 23 is arranged at the bottom of the first support plate 22 and is sleeved on the outside of the central slide bar 16. A second support plate 24 is arranged at the bottom of the second return spring 23 and is sleeved on the outside of the central slide bar 16. The central slide bar 16 moves downward following the spiral guide plate 18 and drives the first support plate 22 to compress the second return spring 23.

[0051] The impeller transmission mechanism includes a central sleeve 31 sleeved on the outer bottom of the central slide bar 16, and a plurality of rotating impellers 19 are evenly distributed on the tube wall of the central sleeve 31. The top inclined surface of the rotating impeller 19 corresponds to the outlet end position of the spiral guide plate 18. A limiting ring 29 is provided at the bottom of the tube wall of the central sleeve 31. The bottom of the limiting ring 29 fits with the top of the second support frame 20. The central sleeve 31 is subjected to the directional impact of the cement slurry sliding down from the outlet end of the spiral guide plate 18 and rotates with the central slide bar 16 as the central axis. The top of the rotating impeller 19 is provided with a stop ring 29 that is aligned with the central sleeve 31. The connecting frame 30 is tightly connected, and the other end of the connecting frame 30 is tightly connected with the mounting ring 21. The ring wall of the mounting ring 21 is provided with a gear ring 28. The bottom of the mounting ring 21 rotates in contact with the top surface of the discharge pipe 1. The upper and lower ends of the extended connecting ring cavity 3 are evenly provided with a plurality of groups of transmission shafts 27. The shaft bodies of the transmission shafts 27 are all sleeved with gears 26, and the gears 26 are all meshed with the gear ring 28. The outer diameter of the mounting ring 21 is larger than the outer diameter of the gear 26. The bottom of the extended connecting ring cavity 3 is evenly provided with a plurality of groups of concrete vibrating rod mechanisms 2 that are transmission-connected to the transmission shaft 27.

[0052] The bottom of the second support plate 24 fits with the top of the central sleeve 31. When the rotating impeller 19 rotates and drives the central sleeve 31 to rotate, the central sleeve 31 rotates and moves relative to the second support plate 24. When the second return spring 23 is compressed, the second support plate 24 at its lower end maintains a stable position structure. The limiting ring 29 is supported by the limiting position of the top of the second support frame 20. The position of the central sleeve 31 and the rotating impeller 19 is further limited by the limiting position of the limiting ring 29. The top of the central sleeve 31 further limits the second support plate 24. When the spiral guide plate 18 moves downward, The rebound force of the second return spring 23 drives the spiral guide plate 18 to move in the opposite direction as a whole. When the second return spring 23 is compressed, a downward pushing force is generated on the second support plate 24, which is further transmitted to the position of the center sleeve 31 through the second support plate 24, and drives the mounting ring 21 to move downward. The discharge pipe 1 and the lower conveying pipe 4 are driven downward as a whole through the mounting ring 21, thereby driving the concrete vibrating rod mechanism 2 to move downward. The first return spring 17 and the third return spring 25 are compressed through the downward displacement of the lower conveying pipe 4, and the piston ring 14 at the top of the support slide rod 7 is driven to move up and down.

[0053] The cement slurry grouting barrier wall construction device of this embodiment has the following usage process: the upper conveying pipe 10 is clamped as a whole by the clamping and positioning mechanism 11, and the discharge pipe 1 is placed into the grouting hole drilled in advance, and at this time, cement slurry or polymer slurry is added to the interior of the upper conveying pipe 10 through the top of the upper conveying pipe 10. As the slurry continues to fall, under the action of gravity, it can also be pressurized slurry. During the falling process of the slurry, the running speed of the slurry continues to increase, and then when the slurry reaches the position at the top of the spiral guide plate 18, a downward impact force is generated on the spiral guide plate 18, and the downward displacement of the spiral guide plate 18 drives the center slide bar 16 to move downward, and then drives the first support plate 22 to move downward and compress the second return spring 23.

[0054] At the same time, the spiral guide effect of the spiral guide plate 18 is used to guide the slurry in a direction, so that the slurry is discharged from the outlet end of the spiral guide plate 18 and generates an oblique impact force on the rotating impeller 19, thereby driving the rotating impeller 19 to rotate.

[0055] The rotation of the rotating impeller 19 drives the center sleeve 31 to rotate around the center slide bar 16, and the rotation of the rotating impeller 19 drives the mounting ring 21 on the outer side of the connecting frame 30 to rotate, thereby driving the gear ring 28 to rotate, and the rotation of the gear ring 28 drives the gear 26 to rotate, and further drives the transmission shaft 27 to rotate. The diameter of the gear ring 28 is a multiple of the gear 26. The multiplied speed ratio of the gear ring 28 and the gear 26 makes the gear 26 in a high-speed rotating state, thereby driving the transmission shaft 27 to operate at a high speed. The high-speed operation of the transmission shaft 27 drives the vibration unit inside the concrete vibrator mechanism 2 to rotate at a high speed to generate vibration, thereby achieving the effect of vibrating and removing bubbles from the concrete vibrator mechanism 2, wherein the concrete vibrator mechanism 2 is consistent with the working principle and technical characteristics of the concrete vibrator in the prior art, and realizes the function of vibrating and removing bubbles from concrete.

[0056] The slurry that slides down through the rotating impeller 19 is further discharged through the bottom of the discharge pipe 1, thereby filling the grouting hole drilled in advance, and accompanied by the vibration of the concrete vibrator mechanism 2, the function of removing bubbles is realized, which optimizes the problem that the existing concrete vibrator requires a long transmission shaft and a high-power drive unit in the deep hole, and improves the practicability of the device.

[0057] As the second return spring 23 is compressed, a downward pushing force is generated on the second support plate 24, and then a downward pressure is generated on the center sleeve 31 through the second support plate 24. Through the rebound force of the second return spring 23, the center sleeve 31 drives the mounting ring 21 to move downward as a whole, and the bottom of the mounting ring 21 is limited by the top of the discharge pipe 1, and then the discharge pipe 1, the extended connecting ring cavity 3, and the lower conveying pipe 4 are driven downward as a whole through the mounting ring 21, thereby driving the concrete vibrator mechanism 2 to move downward.

[0058] As the lower delivery pipe 4 moves downward, the support slide bar 7 on the top of the first support block 5 moves downward and compresses the first return spring 17 and the third return spring 25. The piston ring 14 moves downward inside the annular piston cavity 9 through the downward displacement of the support slide bar 7.

[0059] The impact force of the falling slurry on the spiral guide plate 18 is constantly changing, and when the first return spring 17 and the third return spring 25 are compressed synchronously, a reverse rebound force will appear, thereby pulling the lower delivery pipe 4 to move upward as a whole, and pushing the piston ring 14 to move upward. In the process of the piston ring 14 moving downward, the air flow is supplemented to the inside of the annular piston cavity 9 through the intake pipe 13. When the piston ring 14 moves upward, a downward impact air flow is provided to the inside of the upper delivery pipe 10 through the exhaust pipe 12, thereby preventing the slurry from accumulating on the top of the spiral guide plate 18.

[0060] During the upward displacement of the lower conveying pipe 4 as a whole, the concrete vibrating rod mechanism 2 at the bottom of the extended connecting ring cavity 3 is synchronously driven to move upward, thereby realizing the function of driving the concrete vibrating rod mechanism 2 to move up and down, so that the concrete vibrating rod mechanism 2 can realize the function of automatically adjusting the displacement during the process of vibration to remove bubbles, thereby expanding the range of its vibration of the slurry.

[0061] The cement slurry grouting barrier wall construction device of the present embodiment utilizes the impact force generated by the cement slurry or polymer slurry due to its own gravity in the process of falling during the grouting process, drives the rotating impeller 19 to rotate through the spiral guide plate 18, and drives the gear 26 to rotate through the force transmission, thereby driving the vibration unit of the concrete vibrator rod mechanism 2 to rotate and vibrate, thereby realizing the function of vibrating and discharging the bubbles in the cement slurry or polymer slurry during the grouting process, optimizing the requirements of the long transmission shaft and the high-power drive unit in the existing structure, and, through the impact force, drives the concrete vibrator rod mechanism 2 to vibrate up and down following the discharge pipe 1, so that in the process of discharging bubbles, the position of the concrete vibrator rod mechanism 2 is adjusted, thereby improving the exhaust efficiency.

[0062] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure and manufacturing steps are not limited thereto. Therefore, if a person skilled in the art is inspired by it and, without departing from the purpose of the invention, designs a structure and an implementation method similar to the technical solution without creativity, they shall all fall within the protection scope of the present invention.

Claims

1. A cement slurry grouting type barrier wall construction device, characterized in that: It comprises a discharge pipe (1), a lower conveying pipe (4) and an upper conveying pipe (10) which are sequentially connected and communicated from bottom to top; A spiral material guiding mechanism is fixed on the inner wall of the lower conveying pipe (4), and an impeller transmission mechanism is connected below the spiral material guiding mechanism; The spiral material guide mechanism comprises a spiral guide plate (18); the impeller transmission mechanism comprises a rotating impeller (19), the bottom discharge end of the spiral guide plate (18) is obliquely opposite to the rotating impeller (19); the rotating impeller (19) is externally connected to a concrete vibrating rod mechanism (2) through a transmission pair.

2. The cement slurry grouting barrier wall construction device according to claim 1 is characterized in that: The transmission pair is a gear pair.

3. The cement slurry grouting type barrier wall construction device according to claim 1 is characterized in that: A telescopic hose (6) is also connected and communicated between the lower delivery pipe (4) and the upper delivery pipe (10); a piston pressurizing mechanism is fixedly connected to the outer wall of the upper delivery pipe (10); the telescopic hose (6) cooperates with the piston pressurizing mechanism to provide a downward impact airflow to the interior of the upper delivery pipe (10).

4. The cement slurry grouting type barrier wall construction device according to claim 3 is characterized in that: The piston pressurizing mechanism comprises an annular piston chamber (9) sleeved on the outer wall of the upper delivery pipe (10), wherein a piston ring (14) is connected in a lifting and sliding manner in the annular piston chamber (9) via an elastic support mechanism; the cavity above the piston ring (14) is externally connected to an air intake pipe (13) and is communicated with the upper delivery pipe (10) via an exhaust pipe (12).

5. The cement slurry grouting type barrier wall construction device according to claim 4 is characterized in that: The elastic support mechanism comprises a support slide bar (7), and a first support block (5) and a second support block (8) respectively fixed to the upper outer wall of the lower conveying pipe (4) and the bottom outer wall of the upper conveying pipe (10); one end of the support slide bar (7) is connected to the surface of the first support block (5), and the other end passes through the second support block (8) and is connected to the bottom end surface of the piston ring (14); the piston ring (14) and the second support block (8) and the support slide bar (7) between the second support block (8) and the first support block (5) are respectively surrounded by a third return spring (25) and a first return spring (17).

6. The cement slurry grouting type barrier wall construction device according to claim 5 is characterized in that: The spiral material guiding mechanism also includes a first support frame (15) and a second support frame (20) respectively fixed to the inner wall of the upper conveying pipe (10) and the discharge pipe (1); the frame cores of the first support frame (15) and the second support frame (20) are jointly penetrated and slidably connected with a central sliding rod (16); the bottom end of the spiral guide plate (18) is connected with a first support plate (22); after the central sliding rod (16) penetrates the spiral guide plate (18), the rod body is tightly connected with the first support plate (22); a second return spring (23) is arranged at the bottom of the first support plate (22) and sleeved on the rod body of the central sliding rod (16); a second support plate (24) is arranged at the bottom of the second return spring (23) and sleeved on the rod body of the central sliding rod (16); the central sliding rod (16) moves downward following the spiral guide plate (18) and drives the first support plate (22) to compress the second return spring (23); The impeller transmission mechanism also includes a central sleeve (31) sleeved on the rod body of the central slide rod (16), and the rotating impeller (19) is fixed on the tube wall of the central sleeve (31); the top inclined surface of the rotating impeller (19) is obliquely opposite to the outlet end of the spiral guide plate (18); A limiting ring (29) is provided on the outer wall of the bottom of the central sleeve (31), and the bottom of the limiting ring (29) is in contact with the top of the second support frame (20). The central sleeve (31) is subjected to the directional impact of cement slurry sliding down the outlet end of the spiral guide plate (18) and rotates with the central sliding rod (16) as the central axis.

7. The cement slurry grouting type barrier wall construction device according to claim 6 is characterized in that: An extended connection ring cavity (3) is sealedly connected to the outer wall of the connection between the discharge pipe (1) and the lower conveying pipe (4); a connection frame (30) is provided on the top of the rotating impeller (19) and is tightly connected to the central sleeve (31); a mounting ring (21) is tightly connected to the far end of the connection frame (30); a gear ring (28) is provided on the outer edge of the mounting ring (21); the bottom of the mounting ring (21) rotates in contact with the top surface of the discharge pipe (1); a transmission shaft (27) is vertically provided in the extended connection ring cavity (3); a gear (26) is sleeved on the shaft body of the transmission shaft (27); the gear (26) is meshingly connected to the gear ring (28); the outer diameter of the mounting ring (21) is larger than the outer diameter of the gear (26); the concrete vibrating rod mechanism (2) is transmission-connected to the transmission shaft (27) at the bottom of the extended connection ring cavity (3).

8. The cement slurry grouting type barrier wall construction device according to claim 6 is characterized in that: The bottom of the second support plate (24) and the top of the central sleeve (31) are in contact with each other; when the rotating impeller (19) rotates and drives the central sleeve (31) to rotate accordingly, the central sleeve (31) rotates and moves relative to the second support plate (24), and when the second return spring (23) is compressed, the second support plate (24) at its lower end maintains a stable position structure.

9. The cement slurry grouting type barrier wall construction device according to claim 6, characterized in that: The limiting ring (29) is supported by the top of the second support frame (20), and the position of the central sleeve (31) and the rotating impeller (19) is further limited by the limiting ring (29). The top of the central sleeve (31) further limits the second support plate (24). When the spiral guide plate (18) moves downward, the rebound force of the second return spring (23) drives the spiral guide plate (18) to move in the opposite direction as a whole.

10. The cement slurry grouting type barrier wall construction device according to claim 7, characterized in that: When the second return spring (23) is compressed, a downward pushing force is generated on the second support plate (24), and is further transmitted to the position of the central sleeve (31) through the second support plate (24), driving the mounting ring (21) to move downward, and driving the discharge pipe (1) and the lower conveying pipe (4) to move downward as a whole through the mounting ring (21), thereby driving the concrete vibrating rod mechanism (2) to move downward, and compressing the first return spring (17) and the third return spring (25) through the downward displacement of the lower conveying pipe (4), and driving the piston ring (14) at the top of the supporting slide rod (7) to move up and down.

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