Anti-deviation device for reinforcement cage of long spiral drilling pressure grouting pile

Abstract

The utility model relates to the technical field of pile foundation construction, in particular to an anti-deviation device for a reinforcement cage of a long spiral drilling press-grouting pile, which comprises a guide cylinder used for limiting the reinforcement cage and preventing the reinforcement cage from deviating, and two groups of positioning components convenient for dismounting the guide cylinder are arranged on the side part of the guide cylinder. The bottoms of the two positioning assemblies are provided with a fixed base for ensuring that the guide cylinder and the drill hole are concentric; the positioning assembly comprises a fixing frame, one side of the fixing frame is provided with an arc face, the two sides of the fixing frame are provided with second round through holes, and the hole walls of the second round through holes are slidably connected to the outer portion of the positioning rod in a sleeving mode. Through the use of the positioning assembly, the guide cylinder is very fast and convenient to replace. By replacing the guide cylinders with different inner diameters, the anti-deviation device can adjust the limiting of the reinforcement cage according to the specific diameter size of the reinforcement cage, so that the anti-deviation device is more convenient to use, and the applicability of the anti-deviation device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pile foundation construction, in particular to a device for preventing the deviation of the steel cage of a long spiral drilled cast-in-place pile. Background Technique

[0002] In foundation engineering, pile foundations play a crucial role. A pile foundation is a foundation formed by connecting pile columns and a bearing platform. During the construction of pile foundations, it is necessary to drill holes through a long spiral drill pipe, then pour concrete, and then lower the steel cage. When lowering the steel cage, a device for preventing deviation is required to limit the steel cage to avoid deviation during the lowering process.

[0003] When the existing steel cage deviation prevention device is in use, it cannot adjust the limit on the steel cage according to the specific diameter size of the steel cage, thus causing inconvenience in the use of the deviation prevention device and reducing the applicability of the deviation prevention device. Content of the Utility Model

[0004] The purpose of the utility model is to provide a device for preventing the deviation of the steel cage of a long spiral drilled cast-in-place pile, so that the deviation prevention device can adjust the limit on the steel cage according to the specific diameter size of the steel cage, in order to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A device for preventing the deviation of the steel cage of a long spiral drilled cast-in-place pile, including a guiding cylinder for limiting the steel cage and preventing its deviation. Two positioning components for facilitating the disassembly of the guiding cylinder are arranged on the side of the guiding cylinder, and a fixed base for ensuring that the guiding cylinder and the drill hole are concentric is arranged at the bottom of the two positioning components;

[0006] Among them, the positioning component includes: a fixed frame, one side of the fixed frame is provided with an arc surface, two circular through holes II are opened on both sides of the fixed frame, the hole wall of the circular through hole II is slidably sleeved on the outside of the positioning rod, the outside of the positioning rod is fixedly connected to the inner ring of the baffle plate, the baffle plate is located inside the fixed frame, the outside of the positioning rod is slidably inserted into the inner ring of the return spring, and the return spring is also located inside the fixed frame.

[0007] Preferably, one end of the positioning rod is fixedly connected to the side of the pull ring, and the other end of the positioning rod is slidably inserted into the hole wall of the positioning hole, and the positioning hole is opened on the side of the guiding cylinder.

[0008] Preferably, the fixed base includes: a bearing plate, the top of the bearing plate is fixedly connected to the bottom of the fixed frame, and two spirit levels are also installed on the top of the bearing plate.

[0009] Preferably, four surfaces on the side of the bearing plate are all provided with threaded through holes, and circular through holes I are opened on both sides of each group of threaded through holes.

[0010] Preferably, the threaded hole wall of the threaded through hole is threadedly connected to the outside of the lead screw, one end of the lead screw is fixedly connected to the outside of the knob, and the other end of the lead screw is rotatably connected to the side of the limit plate.

[0011] Preferably, the limit plate is located inside the bearing plate, and one end of two limit rods is also fixedly connected to the side of the limit plate.

[0012] Preferably, the two limit rods are located on both sides of the lead screw, and the outside of the limit rod is slidably inserted into the hole wall of the first circular through hole.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] By using the positioning component, the replacement of the guiding cylinder is very quick and convenient. By replacing guiding cylinders with different inner diameters, the anti-offset device can adjust the limit on the steel reinforcement cage according to the specific diameter size of the steel reinforcement cage, making the use of the anti-offset device more convenient and improving the applicability of the anti-offset device.

[0015] Other features and advantages of the present utility model will be described in the following description, and some of them will be obvious from the description, or can be understood by implementing the present utility model. The objectives and other advantages of the present utility model can be achieved and obtained through the structures pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a schematic diagram of the fixed base structure of the present utility model;

[0018] Figure 3 is a schematic diagram of the bearing plate structure of the present utility model;

[0019] Figure 4 is a schematic diagram of the positioning component structure of the present utility model;

[0020] Figure 5 is a schematic diagram of the fixed frame structure of the present utility model;

[0021] Figure 6 is a schematic diagram of the guiding cylinder structure of the present utility model.

[0022] In the figure: 1. Fixed base; 11. Bearing plate; 12. Limit rod; 13. Knob; 14. Lead screw; 15. Level; 16. Limit plate; 17. Threaded through hole; 18. First circular through hole; 2. Positioning component; 21. Pull ring; 22. Fixed frame; 23. Return spring; 24. Baffle; 25. Arc surface; 26. Positioning rod; 27. Second circular through hole; 3. Guide cylinder; 31. Positioning hole. Specific implementation manner

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figure 1-6 , the present invention provides a technical solution: a device for preventing the deviation of the steel cage of a long spiral drilled grouting pile, including: a guide cylinder 3 for limiting the steel cage and preventing its deviation, and two groups of positioning components 2 are arranged on the side of the guide cylinder 3 to facilitate the disassembly of the guide cylinder 3, and a fixed base 1 for ensuring that the guide cylinder 3 and the drilling hole are concentric is arranged at the bottom of the two groups of positioning components 2.

[0025] The positioning component 2 includes: a fixed frame 22, an arc surface 25 is arranged on one side of the fixed frame 22, two circular through holes 27 are opened on both sides of the fixed frame 22, the hole wall of the circular through hole 27 is slidably sleeved on the outside of the positioning rod 26, the outside of the positioning rod 26 is fixedly connected to the inner ring of the baffle 24, the baffle 24 is located inside the fixed frame 22, the outside of the positioning rod 26 is slidably inserted into the inner ring of the return spring 23, and the return spring 23 is also located inside the fixed frame 22. One end of the positioning rod 26 is fixedly connected to the side of the pull ring 21, and the other end of the positioning rod 26 is slidably inserted into the hole wall of the positioning hole 31, and the positioning hole 31 is opened on the side of the guide cylinder 3.

[0026] Furthermore, when the size of the steel reinforcement cage changes, the inner diameter of the guiding cylinder 3 also changes accordingly to ensure that the inner diameter of the guiding cylinder 3 can fit the steel reinforcement cage and ensure the limiting effect. Therefore, it is necessary to replace the guiding cylinder 3. Pull the pull ring 21 away from the fixed frame 22. The pull ring 21 drives the positioning rod 26, so that the positioning rod 26 is withdrawn from the positioning hole 31 on the side of the guiding cylinder 3. In this way, the guiding cylinder 3 can be removed from the upper part of the bearing plate 11. Replace the guiding cylinder 3 with a different inner diameter. Place the new guiding cylinder 3 between the two fixed frames 22 again. The arc surface 25 on the side of the fixed frame 22 can better limit the guiding cylinder 3. Then release the pull ring 21. The return spring 23 pushes the baffle 24, and the baffle 24 drives the positioning rod 26, so that the positioning rod 26 is inserted into the positioning hole 31 on the side of the new guiding cylinder 3. In this way, the replacement of the new guiding cylinder 3 is completed. The whole replacement process is very fast and convenient. By replacing the guiding cylinder 3 with different inner diameters, the anti-deviation device can adjust the limit on the steel reinforcement cage according to the specific diameter size of the steel reinforcement cage, making the use of the anti-deviation device more convenient and improving the applicability of the anti-deviation device.

[0027] The fixed base 1 includes: a bearing plate 11. The top of the bearing plate 11 is fixedly connected to the bottom of the fixed frame 22. Two sets of spirit levels 15 are also installed on the top of the bearing plate 11. Threaded through holes 17 are opened on four surfaces on the side of the bearing plate 11. Circular through holes one 18 are opened on both sides of each set of threaded through holes 17. The inner wall of the threaded through hole 17 is threadedly connected to the outside of the lead screw 14. One end of the lead screw 14 is fixedly connected to the outside of the knob 13. The other end of the lead screw 14 is rotatably connected to the side of the limiting plate 16. The limiting plate 16 is located inside the bearing plate 11. One end of two sets of limiting rods 12 is also fixedly connected to the side of the limiting plate 16. The two sets of limiting rods 12 are located on both sides of the lead screw 14. The outside of the limiting rod 12 is slidably inserted into the inner wall of the circular through hole one 18.

[0028] Furthermore, place the bearing plate 11 on the ground at the upper end of the drilling hole, and insert the four sets of limiting plates 16 into the drilling hole. By observing the spirit level 15, it can be known whether the bearing plate 11 is horizontal. After the bearing plate 11 is placed horizontally, rotate the knob 13, so that the knob 13 drives the lead screw 14 to rotate, so that the lead screw 14 moves in the direction of the knob 13. Furthermore, the lead screw 14 drives the limiting plate 16 to move towards the inner wall of the bearing plate 11, realizing the mutual separation of the four sets of limiting plates 16, so that the four sets of limiting plates 16 abut against the inner wall of the drilling hole, and further realizing the positioning of the bearing plate 11 and the guiding cylinder 3; when rotating the knob 13, it is necessary to ensure that the number of rotation turns of the four sets of knobs 13 is the same, so as to ensure that the distance between the four sets of limiting plates 16 and the inner wall of the bearing plate 11 is the same, so as to ensure that the inner circle of the bearing plate 11 and the drilling hole are concentric, and further ensure that the inner circle of the guiding cylinder 3 and the drilling hole are concentric. Then pass the steel reinforcement cage through the guiding cylinder 3 into the drilling hole. The inner wall of the guiding cylinder 3 limits the steel reinforcement cage to prevent the steel reinforcement cage from shifting.

[0029] Working principle: When in use, place the bearing plate 11 on the ground at the upper end of the drill hole, and insert the four groups of limiting plates 16 into the drill hole. By observing the spirit level 15, it can be known whether the bearing plate 11 is horizontal. After the bearing plate 11 is placed horizontally, rotate the knob 13, so that the knob 13 drives the lead screw 14 to rotate, and the lead screw 14 moves in the direction of the knob 13. Furthermore, the lead screw 14 drives the limiting plate 16 to move towards the inner wall of the bearing plate 11, realizing the mutual separation of the four groups of limiting plates 16, making the four groups of limiting plates 16 abut against the inner wall of the drill hole, and then realizing the positioning of the bearing plate 11 and the guide cylinder 3; when rotating the knob 13, it is necessary to ensure that the number of rotation turns of the four groups of knobs 13 is the same, so as to ensure that the distances between the four groups of limiting plates 16 and the inner wall of the bearing plate 11 are the same, so as to ensure that the inner circle of the bearing plate 11 and the drill hole are concentric, and further ensure that the inner circle of the guide cylinder 3 and the drill hole are concentric. Then pass the steel reinforcement cage through the guide cylinder 3 into the drill hole. The inner wall of the guide cylinder 3 limits the steel reinforcement cage to prevent the steel reinforcement cage from shifting.

[0030] When the size of the steel reinforcement cage changes, the inner diameter size of the guide cylinder 3 also changes accordingly to ensure that the inner diameter of the guide cylinder 3 can fit the steel reinforcement cage and ensure the limiting effect. Therefore, it is necessary to replace the guide cylinder 3. Pull the pull ring 21 in the direction away from the fixed frame 22. The pull ring 21 drives the positioning rod 26, so that the positioning rod 26 is pulled out from the positioning hole 31 on the side of the guide cylinder 3. In this way, the guide cylinder 3 can be removed from the upper part of the bearing plate 11. Replace the guide cylinder 3 with a different inner diameter. Place the new guide cylinder 3 between the two fixed frames 22 again. The arc surface 25 on the side of the fixed frame 22 can better limit the guide cylinder 3. Then release the pull ring 21. The return spring 23 pushes the baffle 24, and the baffle 24 drives the positioning rod 26, so that the positioning rod 26 is inserted into the positioning hole 31 on the side of the new guide cylinder 3. In this way, the replacement of the new guide cylinder 3 is completed, and the whole replacement process is very fast and convenient. By replacing the guide cylinder 3 with different inner diameters, the anti-deviation device can adjust the limit on the steel reinforcement cage according to the specific diameter size of the steel reinforcement cage, making the use of the anti-deviation device more convenient and improving the applicability of the anti-deviation device.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood 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 long spiral bored pile reinforcement cage anti-deviation device, characterized in that: It comprises a guide cylinder (3) for limiting the position of a steel cage and preventing it from being displaced, the side of the guide cylinder (3) is provided with two groups of positioning components (2) for facilitating the disassembly of the guide cylinder (3), and the bottom of the two groups of positioning components (2) is provided with a fixed base (1) for ensuring that the guide cylinder (3) and the drill hole are at the same center of a circle; The positioning assembly (2) comprises: a fixed frame (22), one side of the fixed frame (22) is provided with an arc surface (25), and two circular through holes (27) are opened on both sides of the fixed frame (22). The hole wall of the second circular through hole (27) is slidably sleeved on the outside of the positioning rod (26), the outside of the positioning rod (26) is fixedly connected to the inner ring of the baffle (24), and the baffle (24) is located in the inner ring of the fixed frame (22). The outside of the positioning rod (26) is slidably inserted into the inner ring of the reset spring (23), and the reset spring (23) is also located in the inner ring of the fixed frame (22).

2. The anti-deviation device for the long spiral bored pile reinforcement cage according to claim 1 is characterized by: One end of the positioning rod (26) is fixedly connected to the side of the pull ring (21), and the other end of the positioning rod (26) is slidably inserted into the hole wall of the positioning hole (31), and the positioning hole (31) is opened on the side of the guide cylinder (3).

3. The anti-deviation device for the long spiral bored pile reinforcement cage according to claim 1 is characterized by: The fixed base (1) comprises a bearing plate (11), the top of the bearing plate (11) being fixedly connected to the bottom of the fixed frame (22), and two sets of level rulers (15) being installed on the top of the bearing plate (11).

4. The anti-deviation device for the long spiral bored pile reinforcement cage according to claim 3 is characterized by: The four sides of the side of the bearing plate (11) are all provided with threaded through holes (17), and both sides of each group of threaded through holes (17) are provided with circular through holes (18).

5. The anti-deviation device for the long spiral bored pile reinforcement cage according to claim 4 is characterized by: The hole wall of the threaded through hole (17) is threadedly connected to the outside of the screw rod (14), one end of the screw rod (14) is fixedly connected to the outside of the knob (13), and the other end of the screw rod (14) is rotatably connected to the side of the limit plate (16).

6. The anti-deviation device for the long spiral bored pile reinforcement cage according to claim 5, characterized in that: The limiting plate (16) is located in the inner circle of the bearing plate (11), and the side of the limiting plate (16) is also fixedly connected to one end of the two groups of limiting rods (12).

7. The anti-deviation device for the long spiral bored pile reinforcement cage according to claim 6 is characterized by: The two groups of limiting rods (12) are located on both sides of the screw rod (14), and the outside of the limiting rod (12) is slidably inserted into the hole wall of the circular through hole (18).

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