A core drilling device for pile foundation inspection of civil air defense projects

Abstract

The present invention relates to the technical field of pile foundation detection equipment for civil air defense projects, and discloses a core drilling device for pile foundation detection of civil air defense projects, including a vehicle body. The outer wall of the vehicle body is rotatably connected with wheels. A connecting block is fixedly connected to the left outer wall of the vehicle body. A first connecting plate is fixedly connected to the upper surface of the connecting block. The output end of a first motor is connected to a first rotating disc. The inner wall of the first rotating disc is rotatably connected to a second rotating disc. A second connecting plate is fixedly connected to the upper surface of the first connecting plate. The output end of a hydraulic cylinder is connected to a limiting block. A first connecting column is fixedly connected to the upper surface of the second rotating disc. A second connecting column is arranged at the bottom end of the limiting block. By starting the first motor, the first motor drives the drill bit body to rotate, and the hydraulic cylinder drives the drill bit body to move up and down, so that when facing pile foundations with different hardnesses and geological conditions, the rotation speed can be adjusted to keep the drill bit in an efficient drilling state all the time, and the detection progress can be accelerated.

Description

Technical Field

[0001] The present invention relates to the technical field of pile foundation detection equipment for civil air defense projects, and specifically provides a core drilling device for pile foundation detection of civil air defense projects. Background Technique

[0002] The pile foundation of a civil air defense project is used to transfer the load transmitted from the upper structure to the pile foundation part deep in the foundation, providing a stable support for the entire civil air defense project. The pile foundation usually consists of a pile body and a pile cap connecting the pile top. The core drilling device drills holes in the pile foundation of the civil air defense project through a drill bit and takes out samples of pile foundation soil or concrete.

[0003] Traditional core drilling devices for pile foundation detection of civil air defense projects usually are equipped with a core tube and a core sampler. During the drilling process, the core tube drives the drill bit to rotate and cut the pile foundation material, cutting it into cylindrical samples of a certain length. However, when facing complex geological conditions and different pile foundation hardnesses, due to the usually fixed output power of its power source, it is difficult to maintain a stable drilling state. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a core drilling device for pile foundation detection of civil air defense projects, which solves the problem of difficult to maintain a stable drilling state when facing complex geological conditions and different pile foundation hardnesses.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: A core drilling device for pile foundation detection of civil air defense projects includes a vehicle body. The outer wall of the vehicle body is rotatably connected with wheels. The left outer wall of the vehicle body is fixedly connected with a connecting block. The upper surface of the connecting block is fixedly connected with a first connecting plate. The lower right surface of the first connecting plate is fixedly connected with a first motor. The output end of the first motor is connected with a first rotating disk. The inner wall of the first rotating disk is rotatably connected with a second rotating disk. The upper surface of the first connecting plate is fixedly connected with a second connecting plate. A hydraulic cylinder is fixedly connected inside the second connecting plate. The output end of the hydraulic cylinder is connected with a limiting block. The upper surface of the second rotating disk is fixedly connected with a first connecting column. The outer wall of the limiting block is fixedly connected inside the first connecting column. A second connecting column is arranged at the bottom end of the limiting block. A drilling assembly is arranged at the bottom end of the second connecting column. The drilling assembly is used for drilling holes in the pile foundation of the civil air defense project.

[0006] Preferably, the drilling assembly includes a drill bit body. The top end of the drill bit body is fixedly connected to the bottom end of the second connecting column. A connecting rod is arranged on the outer wall of the drill bit body. The outer wall of the connecting rod is slidably connected inside the inner wall of the connecting block.

[0007] Preferably, a support plate is fixedly connected to the outer wall of the connecting rod, a first rack is fixedly connected to the outer wall of the support plate, a first rotating column is arranged on the outer wall of the connecting block, a first gear is fixedly connected to the outer wall of the first rotating column, a second gear is fixedly connected to the outer wall of the first rotating column, and a first bevel gear is fixedly connected to the outer wall of the first rotating column.

[0008] Preferably, the tooth end of the first bevel gear is meshed with a second bevel gear, a second rotating column is fixedly connected to the inner wall of the second bevel gear, the bottom end of the second rotating column is arranged on the upper surface of the left side of the vehicle body, a third bevel gear is fixedly connected to the lower outer wall of the second rotating column, a brake block is arranged on the outer wall of the connecting block, and the outer wall of the brake block is arranged at the tooth end of the first gear.

[0009] Preferably, the tooth end of the third bevel gear is meshed with a fourth bevel gear, a rotating rod is fixedly connected to the inner wall of the fourth bevel gear, and the outer wall of the rotating rod is rotatably connected inside the vehicle body.

[0010] Preferably, a third gear is fixedly connected to the outer wall of the rotating rod, the tooth end of the third gear is meshed with a second rack, and a fixed block is fixedly connected to the outer wall of the right side of the vehicle body.

[0011] Preferably, a first threaded rod is arranged inside the fixed block, the lower outer wall of the first threaded rod is threadedly connected to the lower inner part of the fixed block, and the lower inner wall of the fixed block is slidably connected to the outer wall of the right side of the vehicle body.

[0012] Preferably, a grip is fixedly connected to the top end of the first threaded rod, a mounting block is fixedly connected to the outer wall of the lower right side of the vehicle body, and a vibration motor is arranged inside the mounting block.

[0013] Preferably, a core-taking column is arranged on the outer wall of the vibration motor, the upper outer wall of the core-taking column is rotatably connected to the lower inner part of the fixed block, and a second motor is fixedly connected to the inner bottom wall of the fixed block.

[0014] Preferably, the output end of the second motor is connected to a second threaded rod, the second threaded rod is arranged on the inner bottom wall of the fixed block, and a clamping hand is threadedly connected to the outer wall of the second threaded rod.

[0015] Working principle: By starting Motor 1, Motor 1 will drive Rotating Disk 1 and Rotating Disk 2 to rotate. The rotation of Rotating Disk 2 will drive Connecting Column 2 and the drill bit body to rotate on the outer wall of the connecting rod. Then, start the hydraulic cylinder. The hydraulic cylinder will drive Connecting Column 2, the drill bit body and the connecting rod to slide. The sliding of the connecting rod will drive the support plate and Rack 1 to slide. Rack 1 will squeeze the brake block. When the brake block is squeezed, the tooth end of the brake block will leave the first gear. At the same time, Rack 1 will drive the second gear to rotate. The rotation of the second gear will drive the first gear, Rotating Column 1 and Bevel Gear 1 to rotate. The rotation of Bevel Gear 1 will drive Rotating Column 2 and Bevel Gear 2 to rotate. The rotation of Rotating Column 2 and Bevel Gear 2 will drive Bevel Gear 3, Bevel Gear 4 and the rotating rod to rotate. The rotation of the rotating rod will drive the third gear to rotate. The rotation of the third gear will drive Rack 2 to move up and down. When the support plate and Rack 1 leave the brake block, the brake block will block the first gear to prevent Rack 2 from resetting. When the drill bit body retracts, the drill bit body will drive the support plate and Rack 1 to slide. The support plate will squeeze the brake block. The brake block will release the first gear so that Rack 1 can smoothly drive the first gear and Rotating Column 1 to rotate, and finally drive Rack 2 to reset. Thus, when facing piles with different hardness and geological conditions, the rotation speed can be adjusted to keep the drill bit in an efficient drilling state all the time, further increasing the drilling depth per unit time and accelerating the detection progress;

[0016] When the brake block is squeezed, the tooth end of the brake block will leave the first gear. At the same time, Rack 1 will drive the second gear to rotate. The rotation of the second gear will drive the first gear, Rotating Column 1 and Bevel Gear 1 to rotate. The rotation of Bevel Gear 1 will drive Rotating Column 2 and Bevel Gear 2 to rotate. The rotation of Rotating Column 2 and Bevel Gear 2 will drive Bevel Gear 3, Bevel Gear 4 and the rotating rod to rotate. The rotation of the rotating rod will drive the third gear to rotate. The rotation of the third gear will drive Rack 2 to move up and down. When the support plate and Rack 1 leave the brake block, the brake block will block the first gear to prevent Rack 2 from resetting. When the drill bit body retracts, the drill bit body will drive the support plate and Rack 1 to slide. The support plate will squeeze the brake block. The brake block will release the first gear so that Rack 1 can smoothly drive the first gear and Rotating Column 1 to rotate, and finally drive Rack 2 to reset. Thus, in the case of a relatively large drilling depth or complex geological conditions, the shaking and vibration of the device can be reduced, the drilling accuracy can be improved, the verticality of the drilling and the consistency of the hole diameter can be ensured, which is beneficial to obtaining high-quality core samples;

[0017] By manually rotating the grip, the rotation of the grip will drive the first threaded rod to rotate. The rotation of the first threaded rod will drive the inner wall of the lower side of the fixed block to slide and connect to the inner wall of the vehicle body. Place the core extraction column into the inner wall of the drilled hole, then start the vibration motor. The vibration motor will drive the core extraction column to vibrate and shake off the core. Then, by starting the second motor, the second motor will drive the second threaded rod to rotate. The rotation of the second threaded rod will drive the clamp to clamp the core. Finally, manually rotate the grip to take out the core, so as to effectively break the connection between the core sample and the surrounding medium, enable the core sample to be taken out more completely from the pile foundation, reduce the situation of core sample fracture and breakage caused by forced extraction, greatly improve the acquisition rate of complete core samples, and provide a reliable sample basis for accurately detecting the performance of the pile foundation such as strength and density in the follow-up.

[0018] The present invention provides a core drilling device for pile foundation detection in civil air defense projects. It has the following beneficial effects:

[0019] 1. In the present invention, by starting the first motor, the first motor drives the drill bit body to rotate, and the hydraulic cylinder drives the drill bit body to move up and down. Thus, when facing pile foundations with different hardnesses and geological conditions, a stable drilling state can be maintained, further increasing the drilling depth per unit time and accelerating the detection progress.

[0020] 2. In the present invention, the hydraulic cylinder drives the drill bit body to move up and down, and the up and down movement of the drill bit body drives the second rack to support the vehicle body. Thus, in the case of a relatively large drilling depth or complex geological conditions, the shaking and vibration of the device can be reduced, the drilling accuracy can be improved, and the verticality of the drilling and the consistency of the hole diameter can be ensured.

[0021] 3. In the present invention, the second motor drives the clamp to clamp the core, so as to effectively break the connection between the core sample and the surrounding medium, enable the core sample to be taken out more completely from the pile foundation, reduce the situation of core sample fracture and breakage caused by forced extraction, greatly improve the acquisition rate of complete core samples, and provide a reliable sample basis for accurately detecting the performance of the pile foundation such as strength and density in the follow-up. Description of the Drawings

[0022] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0023] Figure 2 is a partial structural schematic diagram of the second connecting column of the present invention;

[0024] Figure 3 is a partial structural schematic diagram of the support plate of the present invention;

[0025] Figure 4 is Figure 1 the enlarged schematic diagram at A in

[0026] Figure 5Schematic cross-sectional view of the internal structure of the vehicle body of the present invention;

[0027] Figure 6 Schematic partial structure view of the mounting block of the present invention;

[0028] Figure 7 is Figure 6 Enlarged view at position B in

[0029] Among them, 1. Vehicle body; 2. Wheel; 3. Connecting block; 4. First connecting plate; 5. First motor; 6. First rotating disc; 7. Second rotating disc; 8. Second connecting plate; 9. Hydraulic cylinder; 10. Limiting block; 11. First connecting column; 12. Second connecting column; 13. Drill bit body; 14. Connecting rod; 15. Support plate; 16. First rack; 17. First rotating column; 18. First gear; 19. Second gear; 20. First bevel gear; 21. Second rotating column; 22. Second bevel gear; 23. Third bevel gear; 24. Fourth bevel gear; 25. Rotating rod; 26. Third gear; 27. Second rack; 28. Fixed block; 29. First threaded rod; 30. Grip; 31. Mounting block; 32. Vibration motor; 33. Core extraction column; 34. Second motor; 35. Second threaded rod; 36. Clamping hand; 37. Brake block. Detailed implementation manners

[0030] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to the attached Figure 1 - attached Figure 4, an embodiment of the present invention provides a core drilling device for pile foundation detection of civil air defense projects, including a vehicle body 1. The outer wall of the vehicle body 1 is rotatably connected with wheels 2. A connecting block 3 is fixedly connected to the left outer wall of the vehicle body 1. A first connecting plate 4 is fixedly connected to the upper surface of the connecting block 3. A first motor 5 is fixedly connected to the lower right surface of the first connecting plate 4. The output end of the first motor 5 is connected to a first rotating disc 6. The inner wall of the first rotating disc 6 is rotatably connected with a second rotating disc 7. A second connecting plate 8 is fixedly connected to the upper surface of the first connecting plate 4. A hydraulic cylinder 9 is fixedly connected inside the second connecting plate 8. The output end of the hydraulic cylinder 9 is connected to a limiting block 10. A first connecting column 11 is fixedly connected to the upper surface of the second rotating disc 7. The outer wall of the limiting block 10 is fixedly connected inside the first connecting column 11. A second connecting column 12 is arranged at the bottom end of the limiting block 10. A drilling assembly is arranged at the bottom end of the second connecting column 12, and the drilling assembly is used for drilling the piles of civil air defense projects; the drilling assembly includes a drill bit body 13. The top end of the drill bit body 13 is fixedly connected to the bottom end of the second connecting column 12. A connecting rod 14 is arranged on the outer wall of the drill bit body 13. The outer wall of the connecting rod 14 is slidably connected inside the connecting block 3.

[0032] Specifically, the vehicle body 1 is used to support the connecting block 3 and the fixed block 28. The connecting block 3 is used to support and fix the first connecting plate 4. The upper inner part of the vehicle body 1 is used to store the battery and at the same time increase the overall weight of the vehicle body 1. The first motor 5 is used to drive the first rotating disc 6 and the second rotating disc 7 to rotate. The hydraulic cylinder 9 is used to drive the second connecting column 12 to slide inside the first connecting column 11. When the second rotating disc 7 rotates, it will not drive the hydraulic cylinder 9 to rotate under the action of the limiting block 10. The second connecting column 12 is used to drive the drill bit body 13 to rotate. The connecting rod 14 is arranged outside the drill bit body 13 and will not rotate due to the rotation of the drill bit body 13. Only when the drill bit body 13 moves up and down will it drive the connecting rod 14 to move up and down. The sliding of the connecting rod 14 will drive the support plate 15 and the first rack 16 to slide inside the connecting block 3, so that when facing piles with different hardness and geological conditions, a stable drilling state can be maintained, further improving the drilling depth per unit time and accelerating the detection progress.

[0033] Please refer to the appendix Figure 3 - appendix Figure 5, a support plate 15 is fixedly connected to the outer wall of the connecting rod 14, a first rack 16 is fixedly connected to the outer wall of the support plate 15, a first rotating column 17 is arranged on the outer wall of the connecting block 3, a first gear 18 is fixedly connected to the outer wall of the first rotating column 17, a second gear 19 is fixedly connected to the outer wall of the first rotating column 17, and a first bevel gear 20 is fixedly connected to the outer wall of the first rotating column 17; the tooth end of the first bevel gear 20 is meshed with a second bevel gear 22, a second rotating column 21 is fixedly connected to the inner wall of the second bevel gear 22, the bottom end of the second rotating column 21 is arranged on the upper surface of the left side of the vehicle body 1, a third bevel gear 23 is fixedly connected to the lower outer wall of the second rotating column 21, a brake block 37 is arranged on the outer wall of the connecting block 3, and the outer wall of the brake block 37 is arranged at the tooth end of the first gear 18; the tooth end of the third bevel gear 23 is meshed with a fourth bevel gear 24, a rotating rod 25 is fixedly connected to the inner wall of the fourth bevel gear 24, and the outer wall of the rotating rod 25 is rotatably connected inside the vehicle body 1.

[0034] Specifically, the sliding of the support plate 15 will drive the brake block 37 to rotate outside the connecting block 3. A spring is arranged inside the brake block 37, and the spring is used to drive the brake block 37 to reset. The brake block 37 is used to limit the rotation of the first rotating column 17 and the first gear 18. When the brake block 37 releases the first gear 18, the first rack 16 can drive the second gear 19 to rotate. The rotation of the second gear 19 is used to drive the first bevel gear 20 to rotate. The first bevel gear 20 is used to drive the second rotating column 21 and the second bevel gear 22 to rotate. The second rotating column 21 and the second bevel gear 22 are used to drive the third bevel gear 23, the fourth bevel gear 24 and the rotating rod 25 to rotate. The rotating rod 25 and the third gear 26 cooperate with each other to drive the second rack 27 to move up and down. A rubber soft pad is arranged at the bottom end of the second rack 27. The second rack 27 is used to support the vehicle body 1, and the vehicle body 1 is used to support the rotating rod 25. Thus, it can reduce the shaking and vibration of the device and improve the drilling accuracy to ensure the verticality of the drilling and the consistency of the hole diameter in the case of a large drilling depth or relatively complex geological conditions.

[0035] Please refer to the appendix Figure 5 - appendix Figure 7, a third gear 26 is fixedly connected to the outer wall of the rotating rod 25, a second rack 27 is meshed with the tooth end of the third gear 26, and a fixed block 28 is fixedly connected to the right outer wall of the vehicle body 1; a first threaded rod 29 is arranged inside the fixed block 28, the lower outer wall of the first threaded rod 29 is threadedly connected to the lower inner part of the fixed block 28, and the lower inner wall of the fixed block 28 is slidably connected to the right outer wall of the vehicle body 1; the top end of the first threaded rod 29 is fixedly connected with a handle 30, an installation block 31 is fixedly connected to the lower right outer wall of the vehicle body 1, and a vibration motor 32 is arranged inside the installation block 31; a core-taking column 33 is arranged on the outer wall of the vibration motor 32, the upper outer wall of the core-taking column 33 is rotatably connected to the lower inner part of the fixed block 28, and a second motor 34 is fixedly connected to the inner bottom wall of the fixed block 28; the output end of the second motor 34 is connected with a second threaded rod 35, the second threaded rod 35 is arranged on the inner bottom wall of the fixed block 28, and a clamping hand 36 is threadedly connected to the outer wall of the second threaded rod 35.

[0036] Specifically, the handle 30 is used to drive the first threaded rod 29 to rotate. The upper outer wall of the first threaded rod 29 is rotatably connected to the upper inner part of the fixed block 28, while the lower outer wall of the first threaded rod 29 is threadedly connected to the lower inner part of the fixed block 28. The lower half of the fixed block 28 is separated from the fixed block 28. The lower half of the fixed block 28 slides on the inner wall of the vehicle body 1, while the upper half of the fixed block 28 is fixedly connected to the outer wall of the vehicle body 1. The second motor 34 is a power-off brake stepping motor. The power-off brake stepping motor can start braking instantly when powered off and quickly lock the motor shaft, improving the safety and stability of the equipment. The installation block 31 is used to support the rotation of the first threaded rod 29, the installation block 31 is used to fix the vibration motor 32, the vibration motor 32 is used to drive the core-taking column 33 to vibrate, and the vibration of the core-taking column 33 will make it easier to take out the core. The second threaded rod 35 is a bidirectional threaded rod. When the second motor 34 rotates, it will drive the clamping hand 36 to slide relatively. Affected by the width of the fixed block 28, the clamping hand 36 can only slide inside it. The clamping hand 36 is used to take the core, so as to effectively break the connection between the core sample and the surrounding medium, enable the core sample to be taken out more completely from the pile foundation, reduce the situation of core sample fracture and breakage caused by forced extraction, greatly improve the acquisition rate of complete core samples, and provide a reliable sample basis for accurately detecting the strength, density and other properties of the pile foundation subsequently.

[0037] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A core drilling device for pile foundation inspection of civil air defense projects, comprising a vehicle body (1), characterized in that, The outer wall of the vehicle body (1) is rotatably connected with wheels (2). A connecting block (3) is fixedly connected to the left outer wall of the vehicle body (1). A first connecting plate (4) is fixedly connected to the upper surface of the connecting block (3). A first motor (5) is fixedly connected to the lower right surface of the first connecting plate (4). The output end of the first motor (5) is connected to a first rotating disc (6). The inner wall of the first rotating disc (6) is rotatably connected with a second rotating disc (7). A second connecting plate (8) is fixedly connected to the upper surface of the first connecting plate (4). A hydraulic cylinder (9) is fixedly connected inside the second connecting plate (8). The output end of the hydraulic cylinder (9) is connected to a limiting block (10). A first connecting column (11) is fixedly connected to the upper surface of the second rotating disc (7). The outer wall of the limiting block (10) is fixedly connected inside the first connecting column (11). A second connecting column (12) is arranged at the bottom end of the limiting block (10). A drilling assembly is arranged at the bottom end of the second connecting column (12). The drilling assembly is used for drilling the civil air defense engineering pile; A first rotating column (17) is arranged on the outer wall of the connecting block (3). A first bevel gear (20) is fixedly connected to the outer wall of the first rotating column (17). The tooth end of the first bevel gear (20) is meshed and connected with a second bevel gear (22). A second rotating column (21) is fixedly connected to the inner wall of the second bevel gear (22). A third bevel gear (23) is fixedly connected to the lower outer wall of the second rotating column (21). The tooth end of the third bevel gear (23) is meshed and connected with a fourth bevel gear (24). A rotating rod (25) is fixedly connected to the inner wall of the fourth bevel gear (24). A third gear (26) is fixedly connected to the outer wall of the rotating rod (25). The tooth end of the third gear (26) is meshed and connected with a second rack (27). A fixed block (28) is fixedly connected to the right outer wall of the vehicle body (1). A second motor (34) is fixedly connected to the inner bottom wall of the fixed block (28). The output end of the second motor (34) is connected to a second threaded rod (35). The second threaded rod (35) is arranged on the inner bottom wall of the fixed block (28). A clamping hand (36) is threadedly connected to the outer wall of the second threaded rod (35).

2. The core drilling device for pile foundation inspection of civil air defense projects according to claim 1, characterized in that, The drilling assembly includes a drill bit body (13). The top end of the drill bit body (13) is fixedly connected to the bottom end of the second connecting column (12). A connecting rod (14) is arranged on the outer wall of the drill bit body (13). The outer wall of the connecting rod (14) is slidably connected to the inner wall of the connecting block (3).

3. A core drilling device for pile foundation inspection of civil air defense projects according to claim 2, characterized in that, A support plate (15) is fixedly connected to the outer wall of the connecting rod (14). A first rack (16) is fixedly connected to the outer wall of the support plate (15). A first gear (18) is fixedly connected to the outer wall of the first rotating column (17). A second gear (19) is fixedly connected to the outer wall of the first rotating column (17).

4. A core drilling device for pile foundation inspection of civil air defense projects according to claim 3, characterized in that, The bottom end of the second rotating column (21) is arranged on the upper left surface of the vehicle body (1). A brake block (37) is arranged on the outer wall of the connecting block (3). The outer wall of the brake block (37) is arranged at the tooth end of the first gear (18).

5. A core drilling device for pile foundation inspection of civil air defense projects according to claim 4, characterized in that, The outer wall of the rotating rod (25) is rotatably connected inside the vehicle body (1).

6. The core drilling device for pile foundation inspection of civil air defense projects according to claim 1, characterized in that, Inside the fixed block (28), there is a first threaded rod (29). The lower outer wall of the first threaded rod (29) is threadedly connected to the lower inner part of the fixed block (28), and the lower inner wall of the fixed block (28) is slidably connected to the right outer wall of the vehicle body (1).

7. A core drilling device for pile foundation inspection of civil air defense projects according to claim 6, characterized in that, The top end of the first threaded rod (29) is fixedly connected to a handle (30). The lower right outer wall of the vehicle body (1) is fixedly connected to a mounting block (31), and inside the mounting block (31), there is a vibration motor (32).

8. A core drilling device for pile foundation inspection of civil air defense projects according to claim 7, characterized in that, The outer wall of the vibration motor (32) is provided with a core-taking column (33). The upper outer wall of the core-taking column (33) is rotatably connected to the lower inner part of the fixed block (28).

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