Long screw pile reinforcement cage positioning and guiding device

Abstract

The utility model discloses a long screw pile reinforcement cage positioning and guiding device which comprises an inner ring, an outer ring with the inner diameter extending outwards is welded to the vertical bottom end of the inner ring through steel bars, and horizontal bubbles used for enabling a long screw pile drill bit to be lifted upwards to see the inner ring for horizontal adjustment are evenly arranged at the end of the inner ring. The inner ring is arranged on a drill rod of a pile machine in a sleeving mode, the sleeving position is opposite to the moving direction of the pile machine, and after the inner ring is sleeved, the inner ring is inserted into soil through positioning arranged at the bottom of a threaded telescopic supporting leg, or a positioning taper thread is detached to enable a supporting base to be arranged on a floor. The height of the supporting stand column is adjusted on the threaded telescopic supporting legs through the threaded rotating rods, it can be guaranteed that the inner ring can be seen after a drill bit is completely lifted out of the slurry face, leveling of the inner ring and the outer ring is conducted through the spirit bubble, the inner ring is located on the horizontal plane, and then the steel reinforcement cage is inserted downwards in a vibrating mode by aligning the center of the inner ring. Therefore, the deviation of the position of the downwards-inserted reinforcement cage can be reduced, and the downwards-inserting accuracy of the reinforcement cage is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of geotechnical engineering, and particularly relates to a positioning and guiding device for a long spiral pile reinforcement cage. Background Art

[0002] With the rapid development of economy and science and technology, pile foundation construction technology has been continuously improved and innovated, and pile foundation construction technology has shown diversity. Long spiral drilling and grouting piles are a widely used technology in China in recent years. This technology has the characteristics of strong penetration, no vibration, low noise, no mud pollution, relatively stable pile body quality, and high construction efficiency.

[0003] The construction process is roughly as follows: the long screw pile driver is put into position and drilled to the designed pile end elevation (designed pile length), then superfluid concrete is poured, and the drill rod is lifted until the superfluid concrete fills the pile body, and finally a special rebar inserter is used to insert the steel cage into the pile body filled with superfluid concrete to form a pile. The accuracy of the positioning of the post-inserted steel cage directly affects the quality and durability of the pile body, but the positioning and guidance problem of the post-inserted steel cage has not been well solved. In response to this situation, we have developed a device to solve the positioning and guidance problem of the post-inserted steel cage. Utility Model Content

[0004] The utility model aims to provide a long spiral pile reinforcement cage positioning and guiding device to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a long spiral pile reinforcement cage positioning and guiding device, comprising:

[0006] An inner ring, the vertical bottom end of which is welded with an outer ring extending outward from the inner diameter through steel bars, the end of the inner ring is evenly provided with level bubbles for lifting the long spiral pile drill bit upward to adjust the inner ring horizontally, the outer side of the inner and outer ring combination is provided with support columns for horizontally supporting the inner and outer rings, the bottom of the support column is screwed with threaded telescopic support legs for adjusting the height of the inner and outer ring combination so that the drill bit can be fully raised for drilling.

[0007] Preferably, the end of the horizontal bubble arranged at the end of the inner ring is provided with an extended center positioning block for positioning the center point of the drill bit lifting, so that the lifted drill bit can be positioned at the center of the inner ring.

[0008] Preferably, the two ends of the steel bars are equidistantly welded in the inclined space between the inner ring and the outer ring to provide inclined fixed support for the inner ring and the outer ring, which can make the inner ring and the outer ring more firm and stable.

[0009] Preferably, the bottom surface of the support column is provided with a telescopic adjustment hole groove with an internal thread surface, and the outside of the telescopic adjustment hole groove is located outside the external thread of the support column and penetrates a positioning lock column, so that the inner ring and outer ring combination can be supported on the opposite surface for height adjustment, so that the steel cage is located in the center position of the drilled hole.

[0010] Preferably, a threaded rotating rod for adjusting the telescopic movement of the threaded telescopic supporting leg is provided at the top end of the threaded telescopic supporting leg, and the threaded rotating rod is threadably installed inside the telescopic adjustment hole slot to adjust the height of the supporting column.

[0011] Preferably, a support base is provided at the bottom of the threaded telescopic support leg, and a positioning cone inserted into the ground is screwed to the bottom of the support base to ensure the vertical stability of the support column supported in the soil and on the ground.

[0012] Compared with the prior art, the technical effects and advantages of the utility model are as follows: the long spiral pile steel cage positioning and guiding device, through the welding combination of the inner ring, the outer ring and the steel bars, and the telescopic thread adjustment combination of the support column and the threaded telescopic support leg, the inner ring is sleeved on the drill rod of the pile driver, and the sleeved position is opposite to the movement direction of the pile driver. After the inner ring is sleeved, it is inserted into the soil by using the positioning provided at the bottom of the threaded telescopic support leg, or the positioning cone thread is removed to place the support base on the floor, and the support column uses the threaded rotating rod to adjust the height on the threaded telescopic support leg, which can ensure that the inner ring can be seen after the drill bit is completely out of the slurry surface, and the level bubble is used to level the inner and outer rings so that the inner ring is on the horizontal plane, and then the steel cage is inserted by aligning the center vibration of the inner ring, which can reduce the deviation of the position of the inserted steel cage and improve the accuracy of the steel cage insertion. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a schematic diagram of the main structure of the utility model.

[0015] In the figure: 1. Inner ring; 2. Outer ring; 3. Steel bar; 4. Level bubble; 5. Support column; 6. Threaded telescopic support leg; 7. Extended center positioning block; 8. Telescopic adjustment hole slot; 9. Threaded rotating rod; 10. Positioning locking column; 11. Support base; 12. Positioning cone. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1-2 The utility model provides a technical solution: a long spiral pile reinforcement cage positioning and guiding device, comprising:

[0018] An inner ring 1, the vertical bottom end of which is welded with an outer ring 2 extending outward from the inner diameter through a steel bar 3, so that the drill bit is lifted from the borehole and the drill rod is positioned at the center of the outer ring 2, so that the steel cage can be inserted into the borehole and liquid concrete can be injected into the borehole. The end of the inner ring 1 is evenly provided with a level bubble 4 for raising the long spiral pile drill bit to adjust the inner ring 1 horizontally, so that the inner ring 1 is supported on the ground by a support column 5 and then adjusted horizontally using the level bubble 4, so that the inner ring 1 is in a horizontal state. The outer side of the inner ring 1 and outer ring 2 combination is provided with a support column 5 for horizontally supporting the inner ring 1 and the outer ring 2, which is used to horizontally and stably support the inner ring 1 and the outer ring 2. The bottom of the support column 5 is screwed with a threaded telescopic support leg 6 for adjusting the height of the inner ring 1 and the outer ring 2 combination so that the drill bit can be fully raised for drilling, which is used to adjust the height of the support column 5.

[0019] The end of the horizontal bubble 4 arranged at the end of the inner ring 1 is provided with an extended center positioning block 7 for center point positioning of the drill bit lifting, and the two ends of the steel bar 3 are equidistantly welded in the inclined space between the inner ring 1 and the outer ring 2 to support the inner ring 1 and the outer ring 2. The bottom surface of the support column 5 is provided with a telescopic adjustment hole groove 8 with an internal thread surface, so that the threaded telescopic support leg 6 can adjust the support height, and the external thread of the telescopic adjustment hole groove 8 located outside the support column 5 is penetrated by a positioning lock column 10, which can lock the position of the threaded rotating rod 9 for adjusting the threaded cotton after adjustment to ensure the stability after adjustment, and the top of the threaded telescopic support leg 6 is provided with a threaded rotating rod 9 for telescopic adjustment of the threaded telescopic support leg 6 to realize the telescopic adjustment of the threaded telescopic support leg 6, and the threaded rotating rod 9 is threadedly installed in the telescopic adjustment hole groove 8. The bottom of the threaded telescopic support leg 6 is provided with a support base 11, and the bottom of the support base 11 is screwed with a positioning cone 12 inserted into the ground, so that the support column 5 can be inserted into the soil using the positioning cone 12 to maintain a certain firmness.

[0020] Specifically, when in use, in the long spiral bored pile construction, after the superfluid concrete is pumped into the pile hole, when the drill bit is about to be lifted out of the ground, the inner ring 1 of the positioning guide device is sleeved on the drill rod of the pile driver, and the position where the inner ring 1 is sleeved is the opposite direction of the movement of the pile driver to prevent the pile driver from hitting the positioning guide device during the movement. After the inner ring 1 is sleeved, the positioning cone 12 provided at the bottom of the threaded telescopic support leg 6 is inserted into the soil, or the thread of the positioning cone 12 is removed to allow the support base 11 to be placed on the floor, and the threaded telescopic support leg 6 is The rotation drives the threaded rotating rod 9 to rotate and adjust the internal thread of the telescopic adjustment hole groove 8 in the supporting column 5, so that the height of the inner ring 1 and the outer ring 2 can be adjusted, which can ensure that the inner ring 1 can be seen after the drill bit is completely out of the slurry surface. At this time, the level bubble 4 is used to level the inner ring 1 so that the inner ring 1 is on a horizontal plane. Then, one end of the extended center positioning block 7 around the end of the inner ring 1 is attached to the surface of the drill bit for a week, and the drill bit is aligned with the center of the inner ring 1 (that is, the center of the pile position) to vibrate and insert the steel cage, so as to reduce the deviation of the position of the inserted steel cage.

[0021] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A long spiral pile reinforcement cage positioning and guiding device, characterized in that: include: An inner ring (1) is provided, at the vertical bottom end of which an outer ring (2) extending outwardly from the inner diameter is welded via a steel bar (3); a leveling bubble (4) is evenly arranged at the end of the inner ring (1) for raising a long spiral pile drill bit upward to adjust the inner ring (1) horizontally; a support column (5) is arranged on the outer side of the inner ring (1) and outer ring (2) combination for horizontally supporting the inner ring (1) and the outer ring (2); a threaded telescopic support leg (6) is screwed to the bottom of the support column (5) for adjusting the height of the inner ring (1) and outer ring (2) combination so that the drill bit can be fully raised when drilling a hole.

2. A long spiral pile reinforcement cage positioning and guiding device according to claim 1, characterized in that: The end of the level bubble (4) arranged at the end of the inner ring (1) is provided with an extended center positioning block (7) for positioning the center point of the drill bit lifting.

3. A long spiral pile reinforcement cage positioning and guiding device according to claim 1, characterized in that: The two ends of the steel bars (3) are welded at equal distances in the inclined space between the inner ring (1) and the outer ring (2) to provide inclined fixed support for the inner ring (1) and the outer ring (2).

4. A long spiral pile reinforcement cage positioning and guiding device according to claim 1, characterized in that: The bottom surface of the support column (5) is provided with a telescopic adjustment hole groove (8) with an internal thread surface, and the outside of the telescopic adjustment hole groove (8) is located outside the support column (5) and the external thread penetrates a positioning lock column (10).

5. The long spiral pile reinforcement cage positioning and guiding device according to claim 1, characterized in that: A threaded rotating rod (9) for adjusting the telescopic movement of the threaded telescopic supporting leg (6) is provided at the top end of the threaded telescopic supporting leg (6), and the threaded rotating rod (9) is threadably mounted inside the telescopic adjustment hole groove (8).

6. The long spiral pile reinforcement cage positioning and guiding device according to claim 1, characterized in that: A support base (11) is provided at the bottom of the threaded telescopic support leg (6), and a positioning cone (12) inserted into the ground is screwed to the bottom of the support base (11).

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