Sampling device for detecting cast-in-place concrete pile

Abstract

The invention relates to a sampling device for detecting a cast-in-place concrete pile, which is applied to the field of building construction, and comprises a rack, one end of the rack is provided with a lifter, the side wall of the lifter is fixedly connected with a shaft sleeve and a rotating motor, the inner wall of the shaft sleeve is rotatably connected with a driving pipe, and the outer wall of the driving pipe is fixedly connected with a gear ring; the output end of the rotating motor is fixedly connected with a gear, the gear is meshed with the gear ring, the side wall of the lifter is further fixedly connected with a connecting air shaft, and the inner wall of the top end of the driving pipe is fixedly connected with an inner extending pipe. By means of the technical scheme, the more efficient coring process is achieved, after the rotating motor is started to drive equipment to rotate reversely, a core can be taken out more conveniently, the sampling efficiency is remarkably improved, the drill pipe does not need to be taken out frequently in the coring process, the drill pipe deviation situation can be avoided, and the sampling accuracy is improved.

Description

Technical Field

[0001] The invention relates to a sampling device, in particular to a sampling device for concrete cast-in-place pile detection applied in the field of building construction. Background Art

[0002] Concrete bored pile inspection sampling refers to the extraction of samples from the completed pile body for inspection after the concrete bored pile is poured and initially hardened, and after the concrete pile is completely solidified and reaches a certain strength. This is usually used to evaluate the final quality, strength and durability of the concrete.

[0003] Chinese patent with publication number CN118670792B discloses a core sampling device for engineering inspection, and Chinese patent with publication number CN115808325A discloses a core sampling device for pile foundation inspection. In the above two patents, when sampling, the core sampling tube is driven to move downward to drill into the interior of the cast-in-place pile to obtain the concrete core, and then the core sampling tube is driven to move upward to take out the concrete core. When the length of the cast-in-place pile is long, it is necessary to frequently drive the core sampling tube up and down, resulting in low sampling efficiency, so further improvement is needed. Summary of the invention

[0004] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that when the length of the cast-in-place pile is long, it is necessary to frequently drive the core sampling tube up and down to take out the concrete core, resulting in low sampling efficiency.

[0005] In order to solve the above problems, the present invention provides a sampling device for concrete bored pile detection, including a frame, a lifter is installed at one end of the frame, the side wall of the lifter is fixedly connected with a sleeve and a rotating motor, the inner wall of the sleeve is rotatably connected with a driving tube, the outer wall of the driving tube is fixedly connected with a gear ring, the output end of the rotating motor is fixedly connected with a gear, the gear and the gear ring are meshed, the side wall of the lifter is also fixedly connected with a connecting air shaft, the inner wall of the top end of the driving tube is fixedly connected with an inner extension tube, the top end of the inner extension tube is rotatably connected to the connecting air shaft and the inner extension tube and the connecting air shaft are connected, and also includes a negative pressure machine, the negative pressure machine and the connecting air shaft are connected, and also includes a drill pipe and multiple relay pipes, the bottom end of the driving pipe and the bottom ends of the multiple relay pipes are both provided with an outer spiral, the top end of the drill pipe and the top end of the relay pipe are both provided with an inner spiral ring, the outer spiral and the inner spiral ring match each other, and the inner wall of the relay pipe is fixedly connected with a rubber ring.

[0006] As a further improvement of the present application, a plurality of inner tubes are fixedly connected to the interior of the drive tube and the drill tube, the inner tube inside the drive tube passes through the top and bottom ends of the drive tube, the inner tube inside the drill tube passes through the top end of the drill tube, and a plurality of intermediate tubes are fixedly connected to the interior of the relay tube, the plurality of intermediate tubes match the plurality of inner tubes, and the intermediate tubes pass through the top and bottom ends of the relay tube.

[0007] As a further improvement of the present application, the top end of the driving tube is sealed and rotatably connected with a connecting air ring, the connecting air ring is connected to the inner tube, and a compressor is also included, one end of the compressor is connected to the connecting air ring.

[0008] As a further improvement of the present application, a plurality of high-pressure tubes are fixedly connected to the inner wall of the drill pipe, and the plurality of high-pressure tubes correspond to and are communicated with the plurality of inner tubes one by one.

[0009] As another improvement of the present application, the inner wall of the high-pressure pipe is slidably connected to a piston, and the side wall of the piston is fixedly connected to a fracturing rod.

[0010] As another improved supplement of the present application, a hydraulic clamp is fixedly connected to the side wall at the bottom end of the frame, and the clamping end of the hydraulic clamp is sleeved on the outside of the relay pipe.

[0011] As another improved supplement of the present application, the top ends of the drill pipe and the relay pipe, and the bottom ends of the drive pipe and the relay pipe are fixedly connected with sealing layers.

[0012] In summary, the device can take out the concrete core from the inside of the drill pipe through the setting of negative pressure extraction, avoiding the operation of frequently moving the drill pipe up and down, and realizing a more efficient coring process. After starting the rotating motor to drive the device to reverse, the core can be taken out more conveniently, which significantly improves the sampling efficiency. At the same time, the drill pipe does not need to be taken out frequently during the coring process, which can avoid the occurrence of drill pipe deviation and improve the accuracy of sampling. In the sampling process, the compressor can be used to drive the piston for fracturing, thereby squeezing and breaking the core, making it easier to remove the core, and improving the ability to sample in hard or tight concrete environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a state diagram of the drill pipe being located inside the cast-in-place pile in the first embodiment of the present application; Figure 2 This is a front cross-sectional view of the driving pipe in the first and second embodiments of the present application; Figure 3 This is a front cross-sectional view of the connection point of the gas ring in the first and second embodiments of the present application; Figure 4 This is a front cross-sectional view of the relay pipe in the first and second embodiments of the present application; Figure 5 This is a state diagram when the driving tube and the relay tube are separated in the first and second embodiments of the present application; Figure 6 This is a front cross-sectional view of the high-pressure pipe in the second embodiment of the present application; Figure 7 This is a state diagram of the fracturing rod breaking the concrete core in the second embodiment of the present application.

[0014] Description of the numbers in the figure: 1. Frame; 2. Lifter; 3. Hydraulic clamp; 4. Fracturing rod; 5. Bushing; 6. Drive pipe; 7. Gear ring; 8. Rotating motor; 9. Gear; 10. Piston; 11. Connecting gas shaft; 12. Inner extension pipe; 13. Negative pressure machine; 14. Drill pipe; 15. Relay pipe; 16. Outer spiral; 17. Inner spiral ring; 18. Rubber ring; 19. Connecting gas ring; 20. Compressor; 21. Inner pipe; 22. Intermediate pipe; 23. High-pressure pipe. DETAILED DESCRIPTION

[0015] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0016] The first implementation method: Figure 1-5 A sampling device for concrete pile detection is shown, comprising a frame 1, a lifter 2 is installed at one end of the frame 1, a shaft sleeve 5 and a rotating motor 8 are fixedly connected to the side wall of the lifter 2, a driving tube 6 is rotatably connected to the inner wall of the shaft sleeve 5, a gear ring 7 is fixedly connected to the outer wall of the driving tube 6, a gear 9 is fixedly connected to the output end of the rotating motor 8, the gear 9 and the gear ring 7 are meshed, a connecting air shaft 11 is also fixedly connected to the side wall of the lifter 2, an inner extension tube 12 is fixedly connected to the inner wall of the top end of the driving tube 6, and the inner extension tube The top end of 12 is rotatably connected to the connecting air shaft 11 and the inner extension tube 12 is connected to the connecting air shaft 11, and also includes a negative pressure machine 13, the negative pressure machine 13 is connected to the connecting air shaft 11, and also includes a drill pipe 14 and a plurality of relay pipes 15. The bottom end of the driving tube 6 and the bottom ends of the plurality of relay pipes 15 are both provided with an outer spiral 16, the top end of the drill pipe 14 and the top end of the relay pipe 15 are both provided with an inner spiral ring 17, the outer spiral 16 and the inner spiral ring 17 match each other, and the inner wall of the relay pipe 15 is fixedly connected with a rubber ring 18.

[0017] When in use, the driving tube 6 is connected to the relay tube 15, and the relay tube 15 is connected to the drill tube 14 through the outer spiral 16 and the inner spiral ring 17. The rotating motor 8 is started to drive the driving tube 6 to rotate forward. At this time, the driving tube 6, the relay tube 15 and the drill tube 14 are tightened, and then the lifter 2 is started to drive the driving tube 6 to move downward, and the drill tube 14 performs coring of the pile. When the drill tube 14 descends to a certain depth, the core is broken, and then the negative pressure machine 13 is started to extract the gas on the top of the core, driving the core to move upward. When the core moves to the inside of the driving tube 6, the rotating motor 8 drives the driving tube 6 to reverse and separate from the relay tube 15, and the lifter 2 drives the driving tube 6 to move upward to take out the core, and then take out a new relay tube 15 and connect it to the driving tube 6, and continue to coring the cast-in-place pile. The above reciprocating movement can continuously perform the coring operation.

[0018] The device can remove the concrete core from the drill pipe through the negative pressure extraction setting, avoiding the frequent up and down movement of the drill pipe and achieving a more efficient coring process. After starting the rotating motor to drive the equipment to reverse, the core can be removed more conveniently, significantly improving the sampling efficiency. At the same time, the drill pipe does not need to be removed frequently during the coring process, which can avoid the occurrence of drill pipe deviation and improve the accuracy of sampling.

[0019] A hydraulic clamp 3 is fixedly connected to the side wall at the bottom end of the frame 1 , and a clamping end of the hydraulic clamp 3 is sleeved on the outside of the relay pipe 15 .

[0020] Through the above arrangement, when the driving tube 6 is rotated to install or remove the relay tube 15 , the hydraulic clamp 3 can be started to clamp the relay tube 15 to fix the relay tube 15 .

[0021] The second implementation method: Figure 2-7 A sampling device for concrete bored pile detection is shown. Different from the first embodiment, a plurality of inner tubes 21 are fixedly connected inside the driving tube 6 and the drill tube 14. The inner tube 21 inside the driving tube 6 passes through the top and bottom ends of the driving tube 6, and the inner tube 21 inside the drill tube 14 passes through the top end of the drill tube 14. A plurality of intermediate tubes 22 are fixedly connected inside the relay tube 15. The plurality of intermediate tubes 22 match the plurality of inner tubes 21, and the intermediate tubes 22 pass through the top and bottom ends of the relay tube 15. The top end of the driving tube 6 is sealed and rotatably connected with a connecting air ring 19, and the connecting air ring 19 is connected to the inner tube 21. A compressor 20 is also included, and one end of the compressor 20 is connected to the connecting air ring 19. A plurality of high-pressure tubes 23 are fixedly connected to the inner side wall of the drill tube 14. The plurality of high-pressure tubes 23 correspond to and are connected to the plurality of inner tubes 21 one by one. The inner wall of the high-pressure tube 23 is slidably connected with a piston 10, and the side wall of the piston 10 is fixedly connected with a fracturing rod 4.

[0022] Through the above arrangement, when coring, the compressor 20 can be started to drive the piston 10. When the piston 10 moves to the right, the fracturing rod 4 can be pushed to squeeze the core and crack it, making it more convenient to take out the core.

[0023] The top ends of the drill pipe 14 and the relay pipe 15 and the bottom ends of the drive pipe 6 and the relay pipe 15 are fixedly connected with sealing layers. Through the above arrangement, the compression force generated by the compressor 20 can be better transmitted to the inside of the high-pressure pipe 23.

[0024] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A sampling device for testing cast-in-place concrete piles, comprising a frame (1), one end of which is mounted a lifter (2), characterized in that: The side wall of the lifter (2) is fixedly connected to a shaft sleeve (5) and a rotating motor (8); the inner wall of the shaft sleeve (5) is rotatably connected to a driving tube (6); the outer wall of the driving tube (6) is fixedly connected to a gear ring (7); the output end of the rotating motor (8) is fixedly connected to a gear (9); the gear (9) and the gear ring (7) are meshed; the side wall of the lifter (2) is also fixedly connected to a connecting air shaft (11); the inner wall of the top end of the driving tube (6) is fixedly connected to an inner extension tube (12); the top end of the inner extension tube (12) is rotatably connected to the connecting air shaft (11). The inner extension tube (12) is connected to the connecting air shaft (11), and further comprises a negative pressure machine (13). The negative pressure machine (13) is connected to the connecting air shaft (11), and further comprises a drill pipe (14) and a plurality of relay pipes (15). The bottom end of the driving pipe (6) and the bottom ends of the plurality of relay pipes (15) are both provided with an outer spiral (16), the top end of the drill pipe (14) and the top end of the relay pipe (15) are both provided with an inner spiral ring (17), the outer spiral (16) and the inner spiral ring (17) match each other, and the inner wall of the relay pipe (15) is fixedly connected with a rubber ring (18).

2. A sampling device for concrete pile detection according to claim 1, characterized in that: The driving tube (6) and the drill tube (14) are both fixedly connected with a plurality of inner tubes (21), the inner tube (21) inside the driving tube (6) passes through the top end and the bottom end of the driving tube (6), the inner tube (21) inside the drill tube (14) passes through the top end of the drill tube (14), and the relay tube (15) is fixedly connected with a plurality of intermediate tubes (22), the plurality of intermediate tubes (22) and the plurality of inner tubes (21) match, and the intermediate tubes (22) pass through the top end and the bottom end of the relay tube (15).

3. A sampling device for detecting a concrete bored pile according to claim 2, characterized in that: The top end of the driving tube (6) is sealingly rotatably connected to a connecting gas ring (19), the connecting gas ring (19) is in communication with the inner tube (21), and further comprises a compressor (20), one end of the compressor (20) is in communication with the connecting gas ring (19).

4. A sampling device for detecting a concrete bored pile according to claim 3, characterized in that: A plurality of high-pressure tubes (23) are fixedly connected to the inner side wall of the drill pipe (14), and the plurality of high-pressure tubes (23) correspond one-to-one to the plurality of inner tubes (21) and are in communication with each other.

5. A sampling device for detecting cast-in-place concrete piles according to claim 4, characterized in that: The inner wall of the high-pressure pipe (23) is slidably connected to a piston (10), and the side wall of the piston (10) is fixedly connected to a fracturing rod (4).

6. A sampling device for testing concrete bored piles according to claim 1, characterized in that: A hydraulic clamp (3) is fixedly connected to the side wall at the bottom end of the frame (1), and a clamping end of the hydraulic clamp (3) is sleeved on the outside of the relay pipe (15).

7. A sampling device for concrete pile detection according to claim 2, characterized in that: The top ends of the drill pipe (14) and the relay pipe (15), and the bottom ends of the drive pipe (6) and the relay pipe (15) are all fixedly connected with a sealing layer.

Images