Environment-friendly cast-in-place pile construction device

Abstract

The application discloses an environment-friendly cast-in-place pile construction device and relates to the technical field of building construction. The device comprises a guide pipe, a winch connected to the upper end of the guide pipe through a traction rope, a rotating shell rotatably connected to the guide pipe, a sliding ring slidably connected to the rotating shell, symmetrically distributed support pipes fixedly connected to the sliding ring, uniformly distributed limiting pins slidably connected to the support pipes, and uniformly distributed sensing modules installed on the support pipes and wirelessly connected to the winch. The sensing modules sense the relative position between the cement slurry and the guide pipe, the speed of the winch for recovering the traction rope is controlled, and then the recovery speed of the traction rope is matched with the discharging speed of the cement slurry, so that the guide pipe is always submerged in the cement slurry, the flow of the cement slurry is not obstructed or locally gathered due to the too high or too low guide pipe, the uniformity and consistency of the cement slurry are affected, and then the grouting density and strength of the cement slurry are improved.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to an environmentally friendly cast-in-place pile construction device. Background Technology

[0002] Cast-in-place piles are piles made by drilling holes in place and pouring concrete or reinforced concrete. The construction process usually includes pre-drilling, cleaning the hole, hoisting the steel cage, and pouring concrete. Due to their advantages such as short construction period, low cost, high technical feasibility, and environmental protection and energy saving, cast-in-place piles are widely used in the construction field.

[0003] During the construction of cast-in-place piles, the end of the guide pipe needs to be submerged to a certain depth under the cement slurry in the borehole. Because the construction depth of cast-in-place piles is relatively large, the relative position between the cement slurry and the guide pipe is prone to change during the long-distance transportation of cement slurry. This can cause the guide pipe to be too high or too low, resulting in poor flow of cement slurry or local accumulation. Summary of the Invention

[0004] In order to overcome the shortcomings of existing cast-in-place pile construction, such as poor flow or local accumulation of cement slurry due to the guide pipe being too high or too low, the present invention provides an environmentally friendly cast-in-place pile construction device.

[0005] Technical Solution: An environmentally friendly cast-in-place pile construction device includes a guide pipe, the upper end of which is connected to a winch via a traction rope, the lower end of which is fixedly connected to a lower cover, and the lower cover is fixedly connected to a sealing cover. A drive motor is installed on the lower cover, and the output shaft of the drive motor is fixedly connected to a drive gear. A rotating shell is rotatably connected to the guide pipe, and an external gear ring meshing with the drive gear is fixedly connected to the rotating shell. The rotating shell is rotatably connected to the sealing cover, and a sliding ring is splined to the rotating shell. Symmetrically distributed support pipes are fixedly connected to the sliding ring, and each of the symmetrically distributed support pipes is fixedly connected to a trowel. Uniformly distributed swing plates are rotatably connected to the support pipes, and uniformly distributed limit pins are slidably connected to the support pipes. The limit pins cooperate with adjacent swing plates. Uniformly distributed sensing modules are installed inside the support pipes, and the sensing modules are wirelessly connected to the winch. A first elastic element is fixedly connected between the sensing modules and adjacent limit pins. The guide pipe is equipped with a vibration mechanism for compacting the grout, and the vibration mechanism has a moving mechanism.

[0006] Preferably, the vibration mechanism includes symmetrically distributed sealing plates, all of which are slidably connected to the conduit. T-shaped rods are fixedly connected between the symmetrically distributed sealing plates and are slidably connected to the conduit. A vibration motor is installed at the end of the T-shaped rod away from the sealing plate. The vibration motor fixing parts include circumferentially distributed vibration rods, which are used to make the grouting material compact.

[0007] Preferably, there is an angle between the axis of the vibrating rod and the axis of the guide tube to increase the horizontal area between the vibrating rod and the grout.

[0008] Preferably, the moving mechanism includes a support ring, which is fixedly connected to a T-shaped rod. The support ring is provided with symmetrically distributed guide grooves. A first moving ring is slidably connected to the rotating shell, and a second moving ring is rotatably connected to the rotating shell. The second moving ring is rotatably connected to the first moving ring. A moving plate is fixedly connected to the conduit. The moving plate is provided with circumferentially distributed limiting grooves. The second moving ring is provided with symmetrically distributed limiting components for limiting the support ring. The support ring is provided with a centering component for centering the conduit. The moving plate is provided with circumferentially distributed locking components.

[0009] Preferably, a second elastic element distributed circumferentially is fixedly connected between the movable plate and the second movable ring, and the second elastic element is used to reset the second movable ring.

[0010] Preferably, the limiting component includes a first rack, which is fixedly connected to a second movable ring. A first guide block is fixedly connected to a guide tube. The first guide block engages with a support ring through an adjacent support ring guide groove. A second rack is slidably connected to the first guide block. An intermediate gear is rotatably connected to the guide tube. Both the second rack and the first rack mesh with the intermediate gear. A rotating ring that engages with an adjacent second rack is rotatably connected to the support ring. A limiting block is fixedly connected to the rotating ring. A third elastic element is fixedly connected between the support ring and the rotating ring. The second rack is slidably connected to the second guide block that is fixedly connected to the guide tube. The second guide block engages with an adjacent guide groove on the support ring and an adjacent limiting block on the rotating ring, respectively.

[0011] Preferably, the centering assembly includes circumferentially distributed fixed rods, all of which are fixedly connected to the support ring and cooperate with the movable plate. A support frame that cooperates with the movable plate is fixedly connected between the circumferentially distributed fixed rods. A circumferentially distributed limiting rod is slidably connected to the support frame. A fourth elastic element is fixedly connected between the limiting rod and the support frame. An arc-shaped plate is fixedly connected to the outer end of each of the circumferentially distributed limiting rods, and the arc-shaped plate is slidably connected to the support frame.

[0012] Preferably, the outer diameter of the arc-shaped plate on the side closest to the support frame is smaller than the outer diameter on the other side.

[0013] Preferably, the locking assembly includes a limiting pin, which is slidably connected to an adjacent fixed rod. A top block is slidably connected inside the limiting pin. A fifth elastic element is fixedly connected between the top block and the adjacent fixed rod. The limiting pin is rotatably connected to symmetrically distributed limiting blocks, which cooperate with the adjacent top block.

[0014] Preferably, when the limiting rod engages with the limiting slot of the adjacent moving plate, the symmetrically distributed limiting blocks engage with the adjacent fixed rod.

[0015] Compared with existing technologies, this invention has the following advantages: This invention uses a sensing module to detect the relative position between the cement slurry and the conduit, controlling the speed at which the winch retracts the traction rope. This ensures the traction rope's retraction speed matches the cement slurry's discharge speed, guaranteeing the conduit is always submerged in the cement slurry. This prevents the conduit from being too high or too low, which could lead to poor slurry flow or localized accumulation, affecting the uniformity and consistency of the cement slurry and thus improving its density and strength. Furthermore, the rapidly vibrating vibrating rod vibrates the cement slurry, expelling air bubbles and improving its density, accelerating hardening and solidification, enhancing early strength and stability, and ultimately improving the grouting effect. Efficiency and effectiveness are improved by using two rotating trowels to smooth the upper side of the cement slurry, thereby squeezing out any potential air bubbles and increasing the contact area between the cement slurry and the borehole, thus improving the grouting effect. A support frame and a moving plate separate the cement slurry and mortar, preventing excessive contact between the cement slurry and mortar, which could lead to stratification, affecting the uniformity and strength of the cement slurry, and thus improving the grouting effect. By aligning the axis of the guide pipe with the axis of the borehole, the cement slurry flowing from the lower end of the guide pipe diffuses from the center of the borehole outwards, preventing leakage due to improper installation or misalignment, further reducing the risk of ground seepage, collapse, subsidence, and other safety issues, thereby improving the grouting quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of the vibrating rod of the present invention when it moves to the bottom of the borehole.

[0018] Figure 3 This is a cross-sectional view of the overall three-dimensional structure of the present invention.

[0019] Figure 4 This is a three-dimensional structural diagram of the sensing module of the present invention when it is no longer in contact with the cement slurry.

[0020] Figure 5 This is a three-dimensional structural diagram of the moving mechanism of the present invention.

[0021] Figure 6 For the present invention Figure 5 Enlarged view of the 3D structure at point A.

[0022] Figure 7 This is a three-dimensional structural diagram of the first guide block of the present invention when it compresses the adjacent rotating ring.

[0023] Figure 8 This is an exploded view of the three-dimensional structure of the limiting component of the present invention.

[0024] Figure 9 This is a three-dimensional structural diagram of the locking component of the present invention.

[0025] The above-mentioned figures include the following reference numerals: 1. conduit, 2. lower cover, 3. sealing cover, 4. drive motor, 5. rotating shell, 6. sliding ring, 701. support tube, 702. squeegee, 703. swing plate, 704. limit pin, 705. sensing module, 706. first elastic element, 801. sealing plate, 802. T-shaped rod, 803. vibration motor, 804. vibration rod, 901. support ring, 902. first moving ring, 903. second moving ring, 904. moving... Moving plate, 905, second elastic element, 906, first rack, 907, first guide block, 908, second rack, 909, intermediate gear, 910, rotating ring, 911, third elastic element, 912, second guide block, 1001, fixed rod, 1002, support frame, 1003, limit rod, 1004, fourth elastic element, 1005, arc plate, 1101, limit pin, 1102, top block, 1103, fifth elastic element, 1104, limit swing block. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

[0027] Example 1: An environmentally friendly cast-in-place pile construction device, such as Figures 1-5As shown, the device includes a conduit 1, with a winch connected to its upper end via a traction rope. A lower cover 2 is fixedly connected to the lower end of the conduit 1, and a sealing cover 3 is fixedly connected to the upper side of the lower cover 2. A drive motor 4 is fixedly mounted on the lower cover 2 and is located inside the sealing cover 3. The drive motor 4 is a waterproof motor, and its output shaft is fixedly connected to a drive gear. A rotating shell 5 is rotatably connected to the outer side of the lower part of the conduit 1, located inside the sealing cover 3. An external gear ring meshing with the drive gear is fixedly connected to the lower part of the rotating shell 5. The rotating shell 5 is rotatably connected to the sealing cover 3. A sliding ring 6 is splinedly connected to the upper middle part of the outer side of the rotating shell 5. Two symmetrically distributed support tubes 701 are fixedly connected to the outer wall of the sliding ring 6. Each of the two symmetrically distributed support tubes 701 is fixedly connected to a trowel 702. Several evenly distributed swing plates 703 are rotatably connected to the lower side of the support tubes 701, and several evenly distributed limit pins 70 are slidably connected to the lower part of the support tubes 701. 4. The limiting pin 704 is engaged with the adjacent swing plate 703 for limiting. Several evenly distributed sensing modules 705 are fixedly installed inside the support pipe 701. The sensing modules 705 are wirelessly connected to the winch. Each sensing module 705 and the adjacent limiting pin 704 is fixedly connected with a first elastic element 706, which is a spring. The inside of the guide pipe 1 is equipped with a vibration mechanism for compacting the grout. A moving mechanism is set in the upper middle part of the vibration mechanism. The height information of the cement grout is transmitted to the winch above through the sensing module 705, thereby controlling the speed of the winch to retract the traction rope. This makes the speed of the traction rope retraction match the speed of the cement grout discharge, so that the guide pipe 1 is always submerged in cement grout, thereby improving the grouting density and strength of the cement grout and preventing the cement grout from flowing poorly or accumulating locally due to the guide pipe 1 being too high or too low, which would affect the uniformity and consistency of the cement grout.

[0028] like Figure 3 As shown, the vibration mechanism includes two symmetrically distributed sealing plates 801, which are slidably connected to the inner wall of the conduit 1. A T-shaped rod 802 is fixedly connected between the two symmetrically distributed sealing plates 801, and the T-shaped rod 802 is slidably connected to the conduit 1. A vibration motor 803 is fixedly installed at the lower end of the T-shaped rod 802. Eight circumferentially distributed vibration rods 804 are fixedly connected to the outer wall of the vibration motor 803. The vibration rods 804 are used to make the grouting material compact. There is an angle between the axis of the vibration rod 804 and the axis of the conduit 1, which is used to increase the horizontal area between it and the grouting material. The rapidly vibrating vibration rods 804 vibrate the cement grout and expel air bubbles in the cement grout, thereby improving the compactness of the cement grout, accelerating the hardening and solidification of the cement grout, improving the early strength and stability of the cement grout, and thus improving the grouting effect and efficiency.

[0029] like Figure 3 and Figure 5As shown, the moving mechanism includes a support ring 901, which is fixedly connected to the T-shaped rod 802. The support ring 901 has two symmetrically distributed guide grooves. A first moving ring 902 is slidably connected to the upper part of the rotating shell 5, and a second moving ring 903 is rotatably connected to the upper part of the rotating shell 5. The second moving ring 903 is rotatably connected to the first moving ring 902. A moving plate 904 is fixedly connected to the middle of the outer wall of the conduit 1. The moving plate 904 has four circumferentially equidistant limiting slots. The second moving ring 903 has two symmetrically distributed limiting components, which are used to limit the support ring 901. The outer wall of the support ring 901 is provided with a centering component for centering the guide tube 1. The upper side of the moving plate 904 is provided with four locking components distributed circumferentially. Four second elastic elements 905 distributed circumferentially at equal intervals are fixedly connected between the moving plate 904 and the second moving ring 903. The second elastic elements 905 are spring plates and are used to reset the second moving ring 903. The cement slurry and mortar are separated by the cooperation between the centering component and the moving plate 904, so as to avoid the cement slurry from contacting too much mortar and causing stratification, which would affect the uniformity and strength of the cement slurry, thereby improving the grouting effect.

[0030] like Figures 5-8 As shown, the limiting assembly includes a first rack 906, which is fixedly connected to the upper side of the second moving ring 903. A first guide block 907 is fixedly connected to the middle of the outer side of the conduit 1. The first guide block 907 engages with the adjacent support ring 901 through a guide groove. A second rack 908 is slidably connected to the first guide block 907. An intermediate gear 909 is rotatably connected to the middle of the outer side of the conduit 1. Both the second rack 908 and the first rack 906 mesh with the intermediate gear 909. A rotating ring 910 is rotatably connected to the support ring 901 and is limited to the adjacent second rack 908. The rotating ring 910 is fixedly connected to the limiting block. A third elastic element 911, which is a torsion spring, is fixedly connected between the support ring 901 and the rotating ring 910 to reset the rotating ring 910. The second rack 908 is slidably connected to the second guide block 912, which is fixedly connected to the conduit 1. The second guide block 912 is respectively engaged with the adjacent guide groove on the support ring 901 and the adjacent limiting block on the rotating ring 910.

[0031] like Figure 3As shown, the centering assembly includes four circumferentially equidistant fixed rods 1001, each fixedly connected to the upper part of the outer side of the support ring 901. Each of the four circumferentially equidistant fixed rods 1001 engages with the movable plate 904 for limiting. A support frame 1002, which engages with the movable plate 904, is fixedly connected between the four circumferentially equidistant fixed rods 1001. Four circumferentially equidistant limiting rods 1003 are slidably connected to the support frame 1002. A fourth elastic element 1 is fixedly connected between each of the four circumferentially equidistant limiting rods 1003 and the support frame 1002. 004, the fourth elastic element 1004 is a spring, and the outer ends of the four circumferentially equidistant limiting rods 1003 are all fixedly connected to arc-shaped plates 1005. The outer diameter of the upper side of the arc-shaped plate 1005 is smaller than the outer diameter of the lower side. The arc-shaped plate 1005 is slidably connected to the support frame 1002. The force of the arc-shaped plate 1005 on the side wall of the borehole causes the guide tube 1 to move towards the center of the borehole, so that the cement slurry flowing out from the lower end of the guide tube 1 spreads from the center of the borehole to the surrounding area. This avoids water leakage caused by improper installation or offset, further reduces the risk of safety problems such as collapse and subsidence, and thus improves the grouting quality.

[0032] like Figure 2 and Figure 9 As shown, the locking assembly includes a limit pin 1101, which is slidably connected to the middle of an adjacent fixed rod 1001. A top block 1102 is slidably connected inside the limit pin 1101. A fifth elastic element 1103, which is a spring, is fixedly connected between the top block 1102 and the adjacent fixed rod 1001. Two symmetrically distributed limit swing blocks 1104 are rotatably connected to the lower part of the limit pin 1101. Block 1104 engages with the adjacent top block 1102 for limiting. When the limiting rod 1003 engages with the limiting slot of the adjacent moving plate 904, the two symmetrically distributed limiting swing blocks 1104 engage with the adjacent fixed rod 1001 for limiting. The moving plate 904 and the limiting swing blocks 1104 limit the fixed rod 1001 in the vertical direction, so that the support frame 1002 and the moving plate 904 remain in contact, further improving the stability during injection and thus improving the quality of injection.

[0033] When this device is needed to inject cement slurry into a borehole, the operator first ties one end of the traction rope on the winch to the upper end of the guide tube 1, and then places the entire device into the borehole. The operator then controls the winch to release the traction rope, and the entire device begins to move downwards under its own weight until the vibrating rod 804 reaches the bottom of the borehole. The operator then controls the winch to stop releasing the traction rope, and then starts the drive motor 4 and the vibrating motor 803. The output shaft of the drive motor 4 begins to rotate clockwise, driving the drive gear to rotate clockwise as well. The drive gear, through the external gear ring, drives the rotating housing 5 counterclockwise. The rotating shell 5 rotates counterclockwise, causing its components to rotate as well. The vibration motor 803 then drives the eight vibration rods 804 to vibrate rapidly. The workers then pour cement slurry into the guide tube 1. The cement slurry enters the borehole from the lower end of the guide tube 1. As the cement slurry is continuously poured in, the height of the cement slurry in the borehole continues to rise until it submerges the vibration rods 804. At this point, the rapidly vibrating vibration rods 804 vibrate the cement slurry, expelling air bubbles and improving the density of the cement slurry. This accelerates the hardening and solidification of the cement slurry, improves its early strength and stability, and thus enhances the grouting effect and efficiency.

[0034] As cement grout is continuously added, its liquid level gradually rises. Once the liquid level of the cement grout rises to contact the two trowels 702, the continuously added cement grout pushes the two rotating trowels 702 upwards. At the same time, the two rotating trowels 702 scrape the upper side of the cement grout, further squeezing out any potential air and bubbles in the cement grout, increasing the contact area between the cement grout and the borehole, and thus improving the grouting effect.

[0035] As cement slurry is continuously added, the two trowels 702 move upwards. After the sliding ring 6 moves upwards and contacts the first moving ring 902, the sliding ring 6 and the first moving ring 902 rotate relative to each other. At the same time, the sliding ring 6 also drives the first moving ring 902 to move upwards together. The first moving ring 902 drives the two first racks 906 to move upwards together. The second elastic element 905 deforms, and the two first racks 906 begin to slide upwards along the adjacent first guide blocks 907 respectively. The first racks 906 drive the adjacent second racks 908 to move downwards through the adjacent intermediate gear 909. The two second racks 908 begin to slide downwards along the adjacent first guide blocks 907 and the adjacent second guide blocks 912 respectively. Then, the second racks 908 lose their limit on the rotating ring 910. Then, the workers control the winch to wind up the traction rope. The traction rope drives the guide tube 1 and its parts to move upwards together until the grouting is completed. The workers then remove the entire device from the borehole, clean the entire device, and reset all the parts.

[0036] Example 2: During the upward movement of the conduit 1 and its components, the support frame 1002 and the T-shaped rod 802 and their components do not move upward under the influence of gravity. The upward-moving second guide block 912 presses against the adjacent rotating ring 910 limiting block. Subsequently, the rotating ring 910 begins to rotate clockwise, the third elastic element 911 deforms, and then the upward-moving second guide block 912 slides upward in the guide groove of the adjacent support ring 901. After the rotating ring 910 deflects to the point where it loses its engagement with the adjacent second guide block 912, the limiting block of the rotating ring 910 begins to slide relative to the second rack 908. During the upward movement of the conduit 1, the moving plate 904 also moves upward. When the moving plate 904 moves upward until its upper limit slot contacts the adjacent limiting rod 1003, as the moving plate 904 continues to move upward, the four limiting rods 1003 begin to move in opposite directions under the action of the limiting slots of the adjacent moving plate 904. The fourth elastic element 1004 is compressed, and the limiting rod 1... 003 moves the adjacent arc-shaped plate 1005 together. When the outer side of the arc-shaped plate 1005 contacts the borehole sidewall, as the four arc-shaped plates 1005 continue to move, the force of the borehole sidewall causes the guide tube 1 to move towards the center of the borehole until the limiting rod 1003 moves to the bottom of the limiting slot of the adjacent moving plate 904. At this time, the arc-shaped plate 1005 moves to contact the borehole sidewall, and the inner side of the support frame 1002 fits against the outer side of the moving plate 904. The support frame 1002 and the movable plate 904 work together to separate the cement slurry and mortar, preventing the cement slurry from coming into contact with too much mortar and causing stratification, which would affect the uniformity and strength of the cement slurry and thus improve the grouting effect. By making the axis of the guide pipe 1 nearly coincide with the axis of the borehole, the cement slurry flowing out from the lower end of the guide pipe 1 spreads from the center of the borehole to the surrounding area, avoiding water leakage caused by improper installation or offset, further reducing the risk of safety problems such as collapse and subsidence, and thus improving the grouting quality.

[0037] As the conduit 1 moves upward, the moving plate 904 drives the four limiting pins 1101 and their components to move upward together. The four limiting pins 1101 slide upward along the adjacent fixed rods 1001 respectively. When the moving plate 904 moves upward until its upper limit slot contacts the adjacent limiting rod 1003, the fixed rod 1001 also moves upward until it contacts the two adjacent limiting swing blocks 1104. As the four limiting pins 1101 continue to move upward, the two symmetrical limiting swing blocks 1104 begin to deflect downward due to the limitation of the adjacent fixed rods 1001. At the same time, the deflected limiting swing blocks 1104 press against the adjacent top block 1102, and the top block 1102 begins to slide downward along the adjacent limiting pins 1101. The fifth elastic element 1103... When the limiting rod 1003 is compressed and disengaged from the limiting slot of the adjacent moving plate 904, the fixed rod 1001 loses its radial limiting effect on the two adjacent limiting swing blocks 1104. At this time, the lower sides of all four fixed rods 1001 are in contact with the upper side of the moving plate 904. The top block 1102 begins to move upward under the elastic force of the adjacent fifth elastic element 1103. The top block 1102 presses against the two adjacent limiting swing blocks 1104, and the lower ends of the two limiting swing blocks 1104 begin to deflect in opposite directions. In this way, the limiting swing blocks 1104 limit the adjacent fixed rods 1001 upward, so that the support frame 1002 and the moving plate 904 remain in contact, further improving the stability during injection and thus improving the injection quality. Subsequently, the entire device moves upward.

[0038] During the upward movement of the entire device, the rotating shell 5 and its components continue to rotate. The rotating swing plate 703, influenced by the cement slurry below, constantly deflects its lower end towards the adjacent limiting pin 704. This deflection compresses the adjacent limiting pin 704, causing it to move upward along the support pipe 701. The limiting pin 704 then compresses the adjacent first elastic element 706, transmitting the elastic force to the adjacent sensing module 705. The sensing module 705 transmits the height information of the cement slurry to the winch above, thereby controlling the speed at which the winch retracts the traction rope. This ensures that the speed of the traction rope's retrieval matches the discharge speed of the cement slurry, keeping the conduit 1 constantly submerged in the cement slurry. To prevent the guide tube 1 from being too high or too low, which could lead to poor flow or local accumulation of cement slurry and affect its uniformity and consistency, thereby improving the density and strength of the cement slurry, when the winch's rope winding speed is too fast, the sensing module 705 loses contact with the cement slurry. Subsequently, the swing plate 703 begins to deflect downwards under its own weight and disengages from the adjacent limit pin 704. The limit pin 704 resets under the elastic force of the adjacent first elastic element 706. The adjacent sensing module 705 adjusts the winch's rope winding speed in this way to ensure the relative position between the guide tube 1 and the cement slurry, further improving the grouting quality. After grouting is completed, the staff removes the entire device from the borehole, cleans the entire device, and then resets all parts.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. An environmentally friendly cast-in-place pile construction device, characterized in that: The system includes a conduit (1), the upper end of which is connected to a winch via a traction rope; a lower cover (2) is fixedly connected to the lower end of the conduit (1); a sealing cover (3) is fixedly connected to the lower cover (2); a drive motor (4) is mounted on the lower cover (2); a drive gear is fixedly connected to the output shaft of the drive motor (4); a rotating shell (5) is rotatably connected to the conduit (1); an external gear ring meshing with the drive gear is fixedly connected to the rotating shell (5); the rotating shell (5) is rotatably connected to the sealing cover (3); a sliding ring (6) is splined connected to the rotating shell (5); symmetrically distributed support pipes (701) are fixedly connected to the sliding ring (6); and the symmetrically distributed support pipes (701) are all fixedly connected. A trowel (702) is fixedly connected to the support tube (701), and a rotatably connected swing plate (703) is rotatably connected to the support tube (701). A limit pin (704) is slidably connected to the support tube (701). The limit pin (704) cooperates with the adjacent swing plate (703). A sensing module (705) is installed inside the support tube (701). The sensing module (705) is wirelessly connected to the winch. A first elastic element (706) is fixedly connected between the sensing module (705) and the adjacent limit pin (704). The guide tube (1) is provided with a vibration mechanism for compacting the grout. The vibration mechanism is provided with a moving mechanism. The sensing module (705) is used to transmit the height information of the cement slurry to the winch above, thereby controlling the speed at which the winch retracts the traction rope, so that the speed at which the traction rope is retracted matches the speed at which the cement slurry is discharged.

2. The environmentally friendly cast-in-place pile construction device according to claim 1, characterized in that: The vibration mechanism includes symmetrically distributed sealing plates (801), which are slidably connected to the conduit (1). T-shaped rods (802) are fixedly connected between the symmetrically distributed sealing plates (801). The T-shaped rods (802) are slidably connected to the conduit (1). A vibration motor (803) is installed at the end of the T-shaped rod (802) away from the sealing plate (801). The vibration motor (803) is fixedly connected to circumferentially distributed vibration rods (804). The vibration rods (804) are used to make the grouting material compact.

3. The environmentally friendly cast-in-place pile construction device according to claim 2, characterized in that: vibration There is an angle between the axis of the rod (804) and the axis of the guide tube (1) to increase the horizontal area between it and the grout.

4. The environmentally friendly cast-in-place pile construction device according to claim 2, characterized in that: The moving mechanism includes a support ring (901), which is fixedly connected to a T-shaped rod (802). The support ring (901) is provided with symmetrically distributed guide grooves. The rotating shell (5) is slidably connected to a first moving ring (902). The rotating shell (5) is rotatably connected to a second moving ring (903). The second moving ring (903) is rotatably connected to the first moving ring (902). The conduit (1) is fixedly connected to a moving plate (904). The moving plate (904) is provided with circumferentially distributed limiting slots. The second moving ring (903) is provided with symmetrically distributed limiting components. The limiting components are used to limit the support ring (901). The support ring (901) is provided with a centering component for centering the conduit (1). The moving plate (904) is provided with circumferentially distributed locking components.

5. An environmentally friendly cast-in-place pile construction device according to claim 4, characterized in that: A second elastic element (905) is fixedly connected between the movable plate (904) and the second movable ring (903) and is distributed in a circumferential direction. The second elastic element (905) is used to reset the second movable ring (903).

6. An environmentally friendly cast-in-place pile construction device according to claim 4, characterized in that: The limiting assembly includes a first rack (906), which is fixedly connected to a second moving ring (903). A first guide block (907) is fixedly connected to the conduit (1). The first guide block (907) engages with the support ring (901) through a guide groove of an adjacent support ring (901). A second rack (908) is slidably connected to the first guide block (907). An intermediate gear (909) is rotatably connected to the conduit (1). Both the second rack (908) and the first rack (906) are connected to the intermediate gear (909). The support ring (901) is rotatably connected to a rotating ring (910) that cooperates with the adjacent second rack (908). The rotating ring (910) is fixedly connected to a limiting block. A third elastic element (911) is fixedly connected between the support ring (901) and the rotating ring (910). The second rack (908) is slidably connected to a second guide block (912) that is fixedly connected to the conduit (1). The second guide block (912) cooperates with the adjacent guide groove on the support ring (901) and the adjacent limiting block on the rotating ring (910).

7. An environmentally friendly cast-in-place pile construction device according to claim 4, characterized in that: The centering assembly includes circumferentially distributed fixed rods (1001), all of which are fixedly connected to the support ring (901). The circumferentially distributed fixed rods (1001) are all in cooperation with the movable plate (904). A support frame (1002) in cooperation with the movable plate (904) is fixedly connected between the circumferentially distributed fixed rods (1001). The support frame (1002) is slidably connected to circumferentially distributed limiting rods (1003). A fourth elastic element (1004) is fixedly connected between the limiting rods (1003) and the support frame (1002). An arc plate (1005) is fixedly connected to the outer end of each circumferentially distributed limiting rod (1003). The arc plate (1005) is slidably connected to the support frame (1002).

8. An environmentally friendly cast-in-place pile construction device according to claim 7, characterized in that: The outer diameter of the curved plate (1005) on the side closest to the support frame (1002) is smaller than the outer diameter on the other side.

9. An environmentally friendly cast-in-place pile construction device according to claim 7, characterized in that: The locking assembly includes a limit pin (1101), which is slidably connected to an adjacent fixed rod (1001). A top block (1102) is slidably connected inside the limit pin (1101). A fifth elastic element (1103) is fixedly connected between the top block (1102) and the adjacent fixed rod (1001). The limit pin (1101) is rotatably connected to symmetrically distributed limit swing blocks (1104), and each of the symmetrically distributed limit swing blocks (1104) cooperates with the adjacent top block (1102).

10. An environmentally friendly cast-in-place pile construction device according to claim 9, characterized in that: When the limiting rod (1003) engages with the limiting slot of the adjacent moving plate (904), the symmetrically distributed limiting swing blocks (1104) engage with the adjacent fixed rod (1001).

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