Shaft steel reinforced concrete secant pile drilling device
By designing a combination of pressure plates and buffer components for the drilling device of vertical shaft steel-concrete interlocking piles, the problems of low utilization rate of drill barrel space and soil adhesion were solved, achieving more efficient soil transportation and cleaning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA ANENG GRP FIRST ENG BUREAU CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-04-21
AI Technical Summary
Existing rotary drilling rigs suffer from problems such as insufficient space occupied by the drill barrel when storing loose soil, and soil adhering to the inner wall and being difficult to clean when dumping soil.
A drilling device for vertical shaft steel-concrete interlocking piles was designed. Through the combination of pressure plate, buffer and connecting parts, the soil is used to push the pressure plate to move up and squeeze the soil, the buffer increases the space utilization of the drill tube, and the electric push rod pushes the soil out when the drill tube is full, and the warning light indicates that the drill tube is full.
It increases the amount of soil that can be transported per drill pipe, reduces soil adhesion to the inner wall, simplifies the soil dumping and cleaning process, and improves construction efficiency.
Smart Images
Figure CN224149525U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vertical shaft interlocking pile construction technology, specifically to a drilling device for vertical shaft steel-concrete interlocking piles. Background Technology
[0002] During the construction of interlocking piles, it is necessary to drill holes before pouring concrete. When drilling holes for interlocking piles, full casing drilling or a combination of rotary drilling and impact drilling is often used. When using rotary drilling, the soil layer is driven through the drill bit at the head end of the rotary drilling cylinder, and the soil is pushed into the drilling cylinder for storage under the action of the drill bit at an inclined setting. After the soil in the drilling cylinder is full, it is moved out of the pile hole and dumped.
[0003] During the process of storing soil in the drill pipe, it is difficult to control the removal and dumping of soil from the pile hole when the drill pipe is full. When dumping the soil, it is necessary to lift the drill rod and drill pipe, remove the drill pipe from the pile hole to dump the soil, and then put the drill pipe back into the pile hole to continue drilling. The operation process is complicated, the loose soil occupies the internal space of the drill pipe, the amount of soil removed each time is limited, and the time is long. At the same time, during the process of dumping the soil, it falls under its own weight, and some soil adheres back to the inner wall of the drill pipe and is difficult to clean. Utility Model Content
[0004] The main purpose of this utility model is to provide a drilling device for vertical shaft steel-concrete interlocking piles, which solves the problems of existing rotary drilling rigs where the stored soil is loose and does not fully utilize the drilling rig space, and where the soil is difficult to clean from the inner wall of the drilling rig when dumping.
[0005] To achieve the above objectives, this utility model provides a drilling device for vertical shaft steel-concrete interlocking piles, including a drill cylinder connected to a drill rod, and a cover plate on the drill cylinder; the cover plate is provided with a drill bit and a soil inlet; and further includes:
[0006] The pressurization assembly includes a pressurization plate movably disposed inside the drill barrel, a sliding member disposed on the pressurization plate, and a pushing member disposed on the sliding member; a connecting member is provided between the sliding member and the pushing member; a buffer member is provided on the connecting member, and a connecting member is provided on the connecting member; a warning light is provided on the outside of the connecting member; the pressurization plate moves upward along the inside of the drill barrel under the push of external soil, so that the connecting member abuts, thereby turning on the warning light; the pushing member moves downward under external command, pushing the pressurization plate downward, thereby pushing the soil out of the drill barrel.
[0007] As a further improvement of this utility model, the pressure plate is clearance-fitted with the inner wall of the drill barrel; the sliding member includes a sliding sleeve disposed on the pressure plate and a sliding rod slidably disposed in the sliding sleeve; the end of the sliding sleeve away from the pressure rod passes through the drill barrel and is provided with a retaining ring.
[0008] As a further improvement of this utility model, four sets of sliding sleeves are arranged at intervals along the circumference of the drill barrel, and the lengths of the sliding sleeves and sliding rods are consistent with the length of the drill barrel.
[0009] As a further improvement of this utility model, the pushing member includes an electric push rod; the electric push rod is connected to a sliding rod, and the stroke of the electric push rod is the same as the length of the sliding rod.
[0010] As a further improvement of this utility model, the connecting member includes a first connecting plate fixedly disposed on the sliding rod and a second connecting plate slidably disposed on the sliding rod; the first connecting plate is provided with a guide hole; the second connecting plate is provided with a guide rod located in the guide hole; and the end of the guide rod is provided with a limiting plate.
[0011] As a further improvement of this utility model, the buffer component includes a buffer spring disposed between the first connecting plate and the second connecting plate; the two ends of the buffer spring are fixedly connected to the first connecting plate and the second connecting plate, respectively.
[0012] As a further improvement of this utility model, the connecting member includes a pressure switch disposed on the first connecting plate; the pressure switch is provided with a pressure rod; the length of the pressure rod is greater than the minimum length of the buffer spring after compression.
[0013] The beneficial effects of this utility model are reflected in:
[0014] By setting up a pressure plate and a buffer, after the soil enters the drill tube, the pressure plate is pushed up and comes into contact with the buffer. The buffer applies force to the soil, causing it to be squeezed, making full use of the internal space of the drill tube and increasing the amount of soil transported each time. The connecting piece is pushed by the connecting piece to turn on the warning light power to remind the staff that the drill tube is full and the soil can be dumped. Under the push of the pushing piece, the soil in the drill tube is detached from the drill tube, making it easier to dump the soil and clean the inner wall of the drill tube. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of a vertical shaft steel-concrete interlocking pile drilling device according to the present invention.
[0016] Figure 2 This is a schematic diagram of the pressurization component structure of a vertical shaft steel-concrete interlocking pile drilling device according to the present invention;
[0017] Figure 3 This utility model relates to a drilling device for vertical shaft steel-concrete interlocking piles. Figure 2 Enlarged structural diagram at point A;
[0018] Explanation of reference numerals in the attached figures:
[0019] 1. Drill barrel; 2. Drill rod; 3. Cover plate; 4. Drill bit; 5. Soil inlet; 6. Pressure plate; 7. Sliding component; 701. Sliding sleeve; 702. Sliding rod; 703. Retaining ring; 8. Pushing component; 801. Electric push rod; 9. Connecting component; 901. First connecting plate; 902. Second connecting plate; 903. Guide hole; 904. Guide rod; 905. Limiting plate; 10. Buffer component; 1001. Buffer spring; 11. Connecting component; 1101. Pressure switch; 1102. Pressure rod; 12. Warning light; 13. Lock; 14. Sliding hole; 15. Support column; 16. Support sleeve; 17. Bolt; 18. Coupling; 19. Sliding hole. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments are merely some, not all, of the embodiments of this utility model. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0021] In one embodiment, see Figure 1 The present invention relates to a drilling device for vertical shaft steel-concrete interlocking piles, comprising a drill cylinder 1 and a pressurizing component.
[0022] The drill barrel 1 is connected to the drill rod 2. The drill barrel 1 is equipped with a cover plate 3, and the cover plate 3 is equipped with a drill bit 4 and a soil inlet 5. The pressurization assembly includes a pressurization plate 6 movably disposed inside the drill barrel 1, a sliding member 7 disposed on the pressurization plate 6, and a pushing member 8 disposed on the sliding member 7. A connecting member 9 is provided between the sliding member 7 and the pushing member 8. A buffer member 10 is provided on the connecting member 9. A connecting member 11 is provided on the connecting member 9. A warning light 12 is provided on the outside of the connecting member 11. The pressurization plate 6 moves upward along the inside of the drill barrel 1 under the push of the external soil so that the connecting member 11 abuts, thereby turning on the warning light 12. The pushing member 8 moves downward under the external command to push the pressurization plate 6 downward, thereby pushing the soil out of the drill barrel 1.
[0023] Preferably, a locking device 13 is provided between the drill barrel 1 and the cover plate 3.
[0024] Further, see Figure 2 The pressure plate 6 is fitted with the inner wall of the drill barrel 1 with a clearance; the sliding member 7 includes a sliding sleeve 701 disposed on the pressure plate 6 and a sliding rod 702 slidably disposed in the sliding sleeve 701. The end of the sliding sleeve 701 away from the pressure rod passes through the drill barrel 1 and is provided with a retaining ring 703.
[0025] Preferably, the pressure plate 6 has a circular structure, and the drill barrel 1 is provided with a sliding hole 14.
[0026] Preferably, the sliding sleeve 701 is a hollow cylinder with one open end. The closed end of the sliding sleeve 701 is connected to the pressure plate 6, and the open end passes through the sliding hole 14 and is located outside the drill barrel 1.
[0027] Further, see Figure 2 Four sets of sliding sleeves 701 are arranged at intervals along the circumference of the drill barrel 1. The lengths of the sliding sleeves 701 and the sliding rods 702 are the same as the length of the drill barrel 1.
[0028] Preferably, the drill barrel 1 is provided with four sets of sliding holes 14, and the sliding rod 702 is provided with four sets accordingly.
[0029] In the above setup, after the drill rod 2 drives the drill barrel 1 to rotate, the drill bit 4 loosens the soil and pushes it into the drill barrel 1 through the soil inlet 5. After the soil enters the drill barrel 1, it comes into contact with the pressure plate 6. As the amount of soil in the drill barrel 1 increases, the pressure plate 6 is pushed upward by the soil, and the sliding sleeve 701 moves along the sliding rod 702. When the sliding sleeve 701 moves to the buffer 10, the buffer 10 is pressed and applies a reaction force to the sliding sleeve 701, thereby pressurizing the soil and making the soil in the drill barrel 1 compacted, increasing the amount of soil stored inside the drill barrel 1.
[0030] Further, see Figure 2 The pusher 8 includes an electric push rod 801, which is connected to a sliding rod 702. The stroke of the electric push rod 801 is the same as the length of the sliding rod 702.
[0031] Preferably, the drill barrel 1 is provided with a support column 15, the support column 15 is provided with a support sleeve 16, the electric push rod 801 is installed in the support sleeve 16, and the electric push rod 801 is connected to the support sleeve 16 by bolts 17.
[0032] Preferably, the electric push rod 801 and the sliding rod 702 are connected by a coupling 18.
[0033] Further, see Figure 3 The connector 9 includes a first connecting plate 901 fixedly mounted on the sliding rod 702 and a second connecting plate 902 slidably mounted on the sliding rod 702. The first connecting plate 901 is provided with a guide hole 903, and the second connecting plate 902 is provided with a guide rod 904 located in the guide hole 903. The end of the guide rod 904 is provided with a limiting plate 905.
[0034] Preferably, the first connecting plate 901 is provided with two sets of guide holes 903.
[0035] Preferably, the second connecting plate 902 has a sliding hole 19 at its center, and two sets of guide rods 904 are provided on the second connecting plate 902.
[0036] In the above setup, after the pressure plate 6 moves to the top of the drill barrel 1, the sliding sleeve 701 pushes the connector 9 upward so that the connector 9 connects to the power supply of the warning light 12, reminding the staff that the soil in the drill barrel 1 is full and the drill barrel 1 can be moved out of the pile hole to dump the soil. When dumping, the locking 13 between the drill barrel 1 and the cover plate 3 is opened. The locking 13 between the drill barrel 1 and the cover plate 3 is an existing structure and is not improved in this application. After the cover plate 3 is opened, the soil slides down from the drill barrel 1 under the action of gravity. For soil that is difficult to slide down from the drill barrel 1 after compaction, the sliding rod 702 is pushed down by controlling the electric push rod 801. The sliding rod 702 pushes the sliding sleeve 701 and the pressure plate 6 down, applying a downward force to the soil, thereby pushing the soil out of the drill barrel 1.
[0037] Further, see Figure 3 The buffer component 10 includes a buffer spring 1001 disposed between the first connecting plate 901 and the second connecting plate 902, with both ends of the buffer spring 1001 fixedly connected to the first connecting plate 901 and the second connecting plate 902, respectively.
[0038] Preferably, the buffer spring 1001 is sleeved on the sliding rod 702.
[0039] Further, see Figure 3 The connecting member 11 includes a pressure switch 1101 disposed on the first connecting plate 901, and a pressure rod 1102 disposed on the pressure switch 1101. The length of the pressure rod 1102 is greater than the minimum length of the buffer spring 1001 after compression.
[0040] Preferably, the pressure switch 1101 is electrically connected to the warning light 12.
[0041] Preferably, the pressure rod 1102 is directly opposite the second connecting plate 902.
[0042] In the above setup, after the pressure plate 6 moves upward and drives the sliding sleeve 701 to move upward, the retaining ring 703 pushes the second connecting plate 902 to move upward. The buffer spring 1001 is compressed and applies force to the pressure plate 6, making the soil compacted. As the amount of soil in the drill barrel 1 increases, the pressure plate 6 continues to push the buffer spring 1001 to move upward, causing the second connecting plate 902 to push the pressure rod to move upward and connect the pressure switch 1101, thereby making the warning light 12 light up.
[0043] In this embodiment, after the drill bit 4 rotates, it draws the soil into the drill barrel 1. The soil pushes the pressure plate 6 upward, and the sliding sleeve 701 moves upward along the sliding rod 702. When the sliding sleeve 701 abuts against the second connecting plate 902, it pushes the second connecting plate 902 upward. The second connecting plate 902 compresses the buffer spring 1001, and the pressure plate 6 is subjected to downward pressure to compress the soil, compacting the loose soil and increasing the storage capacity of the soil inside the drill barrel 1. When the second connecting plate 902 continues to move upward, it pushes the pressure rod 1102 upward, causing the pressure switch 1101 to turn on the power. The warning light 12 lights up, reminding the staff that the soil inside the drill barrel 1 is full and can be removed from the drill barrel 1 for dumping. When dumping the soil, the cover plate 3 is opened and the soil falls by its own weight. When the soil is stuck to the drill barrel 1 and difficult to detach, the sliding rod 702, the sliding sleeve 701, and the pressure plate 6 are driven downward by electric push to push the soil out of the drill barrel 1.
[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A drilling device for vertical shaft steel-concrete interlocking piles, comprising a drill cylinder (1), wherein the drill cylinder (1) is connected to a drill rod (2), and a cover plate (3) is provided on the drill cylinder (1); the cover plate (3) is provided with a drill bit (4) and a soil inlet (5); characterized in that, Also includes: The pressurization assembly includes a pressurization plate (6) movably disposed inside the drill barrel (1), a sliding member (7) disposed on the pressurization plate (6), and a pushing member (8) disposed on the sliding member (7); a connecting member (9) is provided between the sliding member (7) and the pushing member (8); a buffer member (10) is provided on the connecting member (9), and a connecting member (11) is provided on the connecting member (9); a warning light (12) is provided on the outside of the connecting member (11); the pressurization plate (6) moves upward along the inside of the drill barrel (1) under the push of the external soil so that the connecting member (11) abuts, thereby turning on the warning light (12); the pushing member (8) moves downward under the external command to push the pressurization plate (6) downward, thereby pushing the soil out of the drill barrel (1).
2. The shaft type steel reinforced concrete interlocking pile drilling apparatus according to claim 1, characterized in that: The pressure plate (6) is fitted with the inner wall of the drill barrel (1) with a clearance; the sliding member (7) includes a sliding sleeve (701) disposed on the pressure plate (6) and a sliding rod (702) slidably disposed in the sliding sleeve (701); the end of the sliding sleeve (701) away from the pressure rod passes through the drill barrel (1) and is provided with a retaining ring (703).
3. The shaft type steel reinforced concrete interlocking pile drilling apparatus according to claim 2, characterized in that: The sliding sleeve (701) is arranged in four sets at intervals along the circumference of the drill barrel (1), and the lengths of the sliding sleeve (701) and the sliding rod (702) are the same as the length of the drill barrel (1).
4. The shaft type steel reinforced concrete interlocking pile drilling apparatus according to claim 3, characterized in that: The pusher (8) includes an electric push rod (801); the electric push rod (801) is connected to a sliding rod (702), and the stroke of the electric push rod (801) is the same as the length of the sliding rod (702).
5. The shaft type steel reinforced concrete secant pile drilling apparatus according to claim 4, characterized in that: The connector (9) includes a first connecting plate (901) fixedly mounted on the sliding rod (702) and a second connecting plate (902) slidably mounted on the sliding rod (702); the first connecting plate (901) is provided with a guide hole (903); the second connecting plate (902) is provided with a guide rod (904) located in the guide hole (903); and the end of the guide rod (904) is provided with a limiting plate (905).
6. The shaft type steel reinforced concrete secant pile drilling apparatus according to claim 5, characterized in that: The buffer (10) includes a buffer spring (1001) disposed between the first connecting plate (901) and the second connecting plate (902); the two ends of the buffer spring (1001) are fixedly connected to the first connecting plate (901) and the second connecting plate (902) respectively.
7. The shaft type steel reinforced concrete secant pile drilling apparatus according to claim 6, characterized in that: The connecting member (11) includes a pressure switch (1101) disposed on the first connecting plate (901); the pressure switch (1101) is provided with a pressure rod (1102); the length of the pressure rod (1102) is greater than the minimum length of the buffer spring (1001) after compression.