A device for drilling and grouting piles in karst geology

Abstract

This utility model discloses a device for drilling and grouting piles in karst geological conditions, comprising a main body and a collection chamber. The main body has a transmission cavity, within which a bidirectional threaded rod is rotatably mounted. Two transmission sliders are threadedly connected to the bidirectional threaded rod, and five transmission rods are spaced apart along the circumference of each transmission slider. A servo motor drives the bidirectional threaded rod to rotate, causing the two transmission sliders to move closer together through the threaded advance relationship. The multiple transmission rods connected to the two transmission sliders then push the five movable plates away from each other, causing the rotating wheels on the mounting blocks connected to the ends of the multiple telescopic rods to abut against the inner wall of the steel casing. The two vertically arranged rotating wheels ensure stable movement of the device within the steel casing, and the placement of the transmission mechanism within the transmission cavity of the main body effectively protects the transmission structure from external influences, thus ensuring the device's service life.

Description

Technical Field

[0001] This utility model relates to the technical field of bored pile equipment, specifically a device for bored piles in karst geology. Background Technology

[0002] Drilled piles are piles made by forming pile holes in the foundation soil on the engineering site through mechanical drilling, steel pipe extrusion, or manual excavation, and then placing steel protective pipes inside and pouring concrete.

[0003] After the steel casing is inserted into the pile hole, a large amount of sediment will be present at the bottom of the pile hole, which will affect the quality of the project. The existing technology is to use water flushing to remove the sediment, that is, to use high-pressure water to flush the well hole, causing the sediment to rise and be carried out with the water and mud flow. However, since the sediment is denser than water and wall slurry, it is difficult to remove it all. The sediment that is not removed settles at the bottom of the pile, which can easily affect the bearing capacity of the cast-in-place pile.

[0004] Patent CN217735431U discloses a device for drilling and grouting piles in karst geological conditions. In this application, a fixing frame is fixedly installed on the upper surface of the fixing plate. There are four fixing frames arranged in a circular array on the upper surface of the fixing plate. A connecting column is fixedly installed on the lower surface of the top cover. A fixing plate is fixedly installed at the bottom of the connecting column. A motor is fixedly installed at the bottom of the fixing plate. A rotating shaft is welded to the drive end of the motor. A collection chamber is welded to the bottom of the rotating shaft. A fixing beam is fixedly installed at one end of the collection chamber. An electric telescopic rod is fixedly installed on the lower surface of the fixing beam. A cover plate is welded to the end of the electric telescopic rod away from the fixing beam. Starting the motor drives the rotating shaft to rotate the collection chamber, collecting sediment. The electric telescopic rod moves the cover plate downwards to prevent sediment from falling off, making sediment collection more convenient.

[0005] However, the device only uses four rotating wheels to contact the inner wall of the steel protective pipe, which can easily cause the device to tilt inside the steel protective pipe, affecting the collection effect of sediment. In addition, the rotating wheels extend and retract through exposed threaded rods, which can easily get stuck due to mud or debris adhering to the threaded rods, thus affecting the normal extension and retraction of the rotating wheels. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this utility model provides a device for drilling and grouting piles in karst geology, thus solving the aforementioned technical problems.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a device for drilling and grouting piles in karst geological formations, comprising a device body and a collection chamber. The device body has a transmission cavity, within which a bidirectional threaded rod is rotatably mounted. Two transmission sliders are threadedly connected to the bidirectional threaded rod. Five transmission rods are spaced apart along the circumferential direction on the transmission sliders. A common mounting seat is rotatably mounted on every two transmission rods aligned with the same vertical axis. A movable plate is connected to the mounting seat. Two symmetrical telescopic rods protrude from the movable plate. The end of each telescopic rod away from the movable plate extends through the transmission cavity to the outside. A mounting block is mounted on the end of the telescopic rod extending to the outside. Two rotating wheels are rotatably mounted on the mounting block. A drive motor is mounted at the bottom of the device body via a motor bracket. A connecting shaft is mounted on the output shaft of the drive motor. The collection chamber is mounted on the connecting shaft. A servo motor is located at the top of the device body, and the bidirectional threaded rod is mounted on the output shaft of the servo motor.

[0010] Preferably, the top of the main body of the device is provided with two symmetrical lifting rings.

[0011] Preferably, the transmission slider has five rectangular grooves spaced apart along the circumferential direction, and one end of the transmission rod is rotatably installed in the rectangular groove.

[0012] Preferably, each of the mounting bases has a rotating groove, and the end of the transmission rod away from the transmission slider is rotatably mounted in the rotating groove.

[0013] Preferably, the inner wall of the transmission cavity is provided with multiple sliding holes, and multiple telescopic rods are slidably arranged in the multiple sliding holes respectively.

[0014] Preferably, the outer surface of the rotating wheel is covered with a rubber protective layer.

[0015] Preferably, each of the mounting blocks has a mounting groove, and the rotating wheel is rotatably mounted in the mounting groove.

[0016] Compared with the prior art, this utility model provides a device for drilling and grouting piles in karst geology, which has the following beneficial effects: This utility model, through the cooperation of a bidirectional threaded rod, a transmission slider, and a transmission rod, allows the bidirectional threaded rod to rotate via a servo motor. The threaded advance relationship brings the two transmission sliders closer together, and multiple transmission rods connected to the two transmission sliders push the five movable plates away from each other. This causes the rotating wheels on the mounting blocks connected to the ends of the multiple telescopic rods to abut against the inner wall of the steel casing. The two vertically arranged rotating wheels ensure stable movement of the device within the steel casing. Furthermore, the transmission mechanism is located in the transmission cavity within the main body of the device, effectively protecting the transmission structure from external influences and ensuring the service life of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a cross-sectional structural diagram of the movable plate and telescopic rod of this utility model.

[0019] Figure 3 This is a cross-sectional structural diagram of the transmission slider and bidirectional threaded rod of this utility model.

[0020] Figure 4 This is a schematic diagram of the connection structure of the movable plate, transmission slider, and transmission rod of this utility model.

[0021] The components are as follows: 1. Main body of the device; 2. Servo motor; 3. Lifting ring; 4. Telescopic rod; 5. Mounting block; 6. Rotating wheel; 7. Mounting groove; 8. Connecting shaft; 9. Collection bin; 10. Transmission chamber; 11. Transmission slider; 12. Threaded hole; 13. Rotating groove; 14. Sliding hole; 15. Transmission rod; 16. Bidirectional threaded rod; 17. Mounting base; 18. Movable plate; 19. Drive motor; 20. Motor bracket; 21. Rectangular groove. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0023] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Please see Figure 1-4A device for drilling and grouting piles in karst geology includes a main body 1 and a collection chamber 9. A transmission cavity 10 is formed within the main body 1, and a bidirectional threaded rod 16 is rotatably mounted within the transmission cavity 10. Two transmission sliders 11 are threadedly connected to the bidirectional threaded rod 16. Five transmission rods 15 are arranged circumferentially on the transmission sliders 11. A common mounting seat 17 is rotatably mounted on every two transmission rods 15 located on the same vertical axis. A movable plate 18 is connected to the mounting seat 17. Two symmetrical telescopic rods 4 protrude from the movable plate 18. The end of the telescopic rod 4 away from the movable plate 18 extends through the transmission cavity 10 to the outside. A mounting block 5 is mounted on the end of the telescopic rod 4 extending to the outside. Two rotating wheels 6 are rotatably mounted on the mounting block 5. A drive motor 19 is mounted at the bottom of the main body 1 via a motor bracket 20. A connecting shaft 8 is mounted on the output shaft of the drive motor 19. The collection chamber 9 is mounted on the connecting shaft 8. A servo motor 2 is located at the top of the main body 1, and the bidirectional threaded rod 16 is mounted on the output shaft of the servo motor 2.

[0026] Through the coordinated arrangement of the bidirectional threaded rod 16, transmission slider 11, and transmission rod 15, the servo motor 2 drives the bidirectional threaded rod 16 to rotate. The threaded advance relationship causes the two transmission sliders 11 to move closer together. The multiple transmission rods 15 connected to the two transmission sliders 11 then push the five movable plates 18 away from each other. This causes the rotating wheels 6 on the mounting blocks 5 connected to the ends of the multiple telescopic rods 4 to abut against the inner wall of the steel protective pipe. The two vertically arranged rotating wheels 6 ensure stable movement of the device within the steel protective pipe. Furthermore, the transmission mechanism is located in the transmission cavity 10 within the main body 1 of the device, effectively protecting the transmission structure from external influences and ensuring the device's service life.

[0027] Specifically, in this embodiment, the top of the main body 1 of the device is provided with two symmetrical hanging rings 3.

[0028] The lifting rings 3 facilitate the hoisting of the main body 1 of the device by the lifting device.

[0029] Specifically, in this embodiment, five rectangular grooves 21 are spaced apart along the circumferential direction on the transmission slider 11, and one end of the transmission rod 15 is rotatably installed in the rectangular grooves 21.

[0030] The rectangular groove 21 provided can restrict the direction of movement of the transmission rod 15.

[0031] Specifically, in this embodiment, a rotating groove 13 is provided on each of the multiple mounting bases 17, and the end of the transmission rod 15 away from the transmission slider 11 is rotatably mounted in the rotating groove 13.

[0032] The rotation groove 13 can further restrict the direction of movement of the transmission rod 15.

[0033] Specifically, in this embodiment, a plurality of sliding holes 14 are provided on the inner wall of the transmission cavity 10, and a plurality of telescopic rods 4 are slidably arranged in the plurality of sliding holes 14, so that the telescopic rods 4 can slide through the sliding holes 14 to guide the movement direction of the mounting block 5 and the rotating wheel 6.

[0034] Specifically, in this embodiment, the outer surface of the rotating wheel 6 is covered with a rubber protective layer.

[0035] Specifically, in this embodiment, multiple mounting blocks 5 are provided with mounting grooves 7, and rotating wheels 6 are rotatably mounted in the mounting grooves 7.

[0036] The mounting groove 7 allows the rotating wheel 6 to rotate within it.

[0037] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for karst geology cast-in-place pile, comprising a device main body and a collection bin, characterized in that: The device body has a transmission cavity, within which a bidirectional threaded rod is rotatably mounted. Two transmission sliders are threadedly connected to the bidirectional threaded rod. Five transmission rods are spaced apart along the circumference of the transmission sliders. A mounting seat is rotatably mounted on every two transmission rods on the same vertical axis. A movable plate is connected to the mounting seat. Two symmetrical telescopic rods protrude from the movable plate. The ends of the telescopic rods away from the movable plate extend through the transmission cavity to the outside. A mounting block is mounted on the ends of the telescopic rods extending to the outside. Two rotating wheels are rotatably mounted on the mounting blocks. A drive motor is mounted on the bottom of the device body via a motor bracket. A connecting shaft is mounted on the output shaft of the drive motor. The collection chamber is mounted on the connecting shaft. A servo motor is located on the top of the device body, and the bidirectional threaded rod is mounted on the output shaft of the servo motor.

2. A device for use in a karst geologic bored cast-in-place pile according to claim 1, characterized in that: The top of the main body of the device is provided with two symmetrical lifting rings.

3. The device for karst geological bored pile according to claim 1, characterized in that: The transmission slider has five rectangular grooves spaced apart along the circumference, and one end of the transmission rod is rotatably installed in the rectangular groove.

4. The device for karst geological bored pile according to claim 1, characterized in that: Each of the mounting bases has a rotating groove, and the end of the transmission rod away from the transmission slider is rotatably mounted in the rotating groove.

5. The device for karst geologic bored cast-in-place pile according to claim 1, characterized in that: The inner wall of the transmission cavity is provided with multiple sliding holes, and multiple telescopic rods are slidably arranged in the multiple sliding holes respectively.

6. The device for karst geologic bored cast-in-place pile according to claim 1, characterized in that: The outer surface of the rotating wheel is covered with a rubber protective layer.

7. The device for drilling and grouting piles in karst geological conditions according to claim 1, characterized in that: Multiple mounting blocks are provided with mounting slots, and rotating wheels are mounted in the mounting slots.

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