Auxiliary device for cast-in-place pile construction and construction technology thereof

Abstract

The invention discloses an auxiliary device for cast-in-place pile construction and a construction technology thereof, and relates to the technical field of auxiliary devices for cast-in-place pile construction. The auxiliary device for cast-in-place pile construction comprises a reinforcement cage, the reinforcement cage is sleeved with a plurality of protection pipes, a center ring is detachably installed on one part of the protection pipes, a plurality of separation pieces are wound in the center ring, and a stretching mechanism is detachably installed on the other part of the protection pipes; the stretching mechanisms are in one-to-one correspondence with the separation pieces and are detachably connected with the separation pieces, and the stretching mechanisms pull the separation pieces to extend towards the outer side. The separation sheets are driven to move through the traction rope. The pile body and the pile head are separated through the multiple separation pieces, the direct contact area between the pile body and the pile head is reduced, the adhesion between the separation pieces and concrete is low, and therefore the pile body and the pile head can be disassembled conveniently.

Description

TECHNICAL FIELD

[0001] The application relates to an auxiliary device for bored pile construction, in particular to an auxiliary device for bored pile construction and a construction process thereof. BACKGROUND

[0002] When pouring concrete, the reinforcement cage is lowered into the hole, and then the pouring pipe is placed into the hole, and the concrete is poured into the pouring pipe, and the concrete flows from the bottom of the pouring pipe into the pouring pipe and the hole for pouring; when pouring, the soil residue in the hole will float on the surface of the concrete, so the strength of the top of the concrete will be lower than that of the bottom, so the concrete needs to be poured above the design elevation of the pile top of the bored pile, so that the part below the design elevation of the bored pile meets the strength requirement of the bored pile. When pouring concrete, in order to reduce the waste of concrete, only the concrete is poured to a height of about 1m above the design elevation of the bored pile to form the pile head of the bored pile, and after the concrete solidifies, the pile head part of the bored pile exceeding the design elevation is removed.

[0003] According to the related technology in the above, the inventors believe that when the pile head is removed, the concrete that is solidified and bonded together needs to be removed, and since the reinforcement cage is generally higher than the elevation, the steel bar is easily damaged when the concrete is removed, and since no separator is arranged between the pile head and the pile head, the pile head and the pile body form a relatively close whole, which makes it difficult to remove. SUMMARY

[0004] The purpose of the present application is to provide an auxiliary device for bored pile construction and a construction process thereof to improve the problem that it is difficult to remove the pile head.

[0005] In one aspect, the application provides an auxiliary device for bored pile construction, which comprises a reinforcement cage, a plurality of protective tubes are sleeved on the reinforcement cage, a center ring is detachably installed on a part of the protective tubes, a plurality of separation pieces are wound in the center ring, a stretching mechanism is detachably installed on another part of the protective tubes, the stretching mechanism corresponds to the separation pieces one by one and is detachably connected, and the stretching mechanism pulls a plurality of the separation pieces to extend outward.

[0006] By adopting the above technical scheme, the pile body and the pile head are separated, and the direct contact area between the pile body and the pile head is reduced, so that the pile body and the pile head are easily removed.

[0007] Optionally, a first connecting head is fixedly installed on the plurality of protective tubes, a first connecting rod is inserted into the first connecting head, a connecting sleeve is threadedly connected to the first connecting rod, a second connecting rod is fixedly installed on the connecting sleeve, a second connecting head is fixedly installed on the center ring, and the second connecting rod is inserted into the first connecting head.

[0008] By adopting the technical scheme, the center ring can be fixed at the center position of the reinforcement cage.

[0009] Optionally, the connecting sleeve is internally provided with an internal thread, the first connecting rod is externally provided with an external thread, the external thread is located inside the connecting sleeve, and the connecting sleeve is fixedly provided with a sealing sleeve.

[0010] By adopting the technical scheme, the concrete is prevented from entering the inside of the connecting sleeve, the internal thread inside the connecting sleeve and the external thread on the first connecting rod are prevented from being polluted by the concrete, and the first connecting rod and the connecting sleeve can be reused.

[0011] Optionally, the center ring is internally provided with a storage groove, a plurality of winding columns are rotatably installed in the storage groove, torsion springs are fixedly installed on the winding columns, the other ends of the torsion springs are fixedly connected with the storage groove, the partition pieces are fixedly connected with the winding columns, a plurality of notches are formed in the center ring, and the partition pieces extend to the outside of the center ring through the notches.

[0012] By adopting the technical scheme, the pile body and the pile head are separated by the plurality of partition pieces, the direct contact area between the pile body and the pile head is reduced, the partition pieces are reset under the action of the torsion springs, the partition pieces are re-wound on the winding columns, and the partition pieces are reused.

[0013] Optionally, a plurality of the sealing plates are fixedly installed on the center ring, the sealing plates correspond to the notches one by one, and the sealing plates seal the notches.

[0014] By adopting the technical scheme, the concrete is prevented from entering the inside of the storage groove, and the center ring can be fully utilized.

[0015] Optionally, the stretching mechanism comprises a driving box fixedly installed on the plurality of the protection pipes, a motor fixedly installed in the driving box, and a winding column rotatably installed in the driving box, the output shaft of the motor is fixedly connected with the winding column in a same axis, a traction rope is fixedly installed on the winding column, and two connecting ropes are fixedly connected with the traction rope.

[0016] By adopting the technical scheme, the winding column winds the traction rope, and the traction rope drives the partition pieces to move.

[0017] Optionally, a battery is fixedly installed in the driving box, the motor is electrically connected with the battery, a through hole is formed in the driving box to allow the traction rope to pass through, and a sealing head is fixedly installed on the driving box.

[0018] By adopting the technical scheme, the concrete is prevented from entering the inside of the driving box, and the stretching mechanism can be reused.

[0019] Optionally, a connecting hole is provided in the protective tube, and a rubber ring is fixedly installed at the bottom of the connecting hole.

[0020] By adopting the above technical solution, the connection hole is blocked to prevent concrete from entering the connection hole, thereby facilitating the removal of the protective pipe after pouring is completed.

[0021] Optionally, a connecting mechanism is installed on one of the protective tubes, and a worry-free sensor is installed on the connecting mechanism. The connecting mechanism includes a connecting sleeve fixedly installed on one of the protective tubes, a first fixed pad fixedly installed in the connecting sleeve, an installation box fixedly installed on one side of the connecting sleeve, a push rod motor fixedly installed in the installation box, and a second fixed pad fixedly installed on the output shaft of the push rod motor. The second fixed pad is located inside the connecting sleeve, and the output shaft of the push rod motor passes through one side of the connecting sleeve and extends to the inside of the connecting sleeve.

[0022] By adopting the above technical solution, it is easy to fix and disassemble the Guan Wuyou sensor.

[0023] On the other hand, the present invention provides a cast-in-place pile construction process, which comprises the following steps: Step 1: Place the protective tube on the steel cage; Step 2: Fix the center ring to the center of the steel cage through the first connecting rod, the connecting sleeve and the second connecting rod; Step 3: Install the drive box on the protective tube and connect the connecting rope to the separator. Step 4: Fix the Guanwuyou sensor inside the connecting sleeve through the connecting mechanism; Step 5: Place the steel cage into the pile hole through the lifting device, and then grout from the bottom of the pile hole; Step 6: When the concrete submerges the worry-free grouting sensor, stop grouting and expand the separator inside the concrete through the stretching mechanism; Step 7: After the concrete solidifies, remove the pile head above the separator and take out the protective pipe.

[0024] In summary, the present application includes at least one of the following beneficial technical effects of the auxiliary device for bored pile construction: 1. Select a protective tube with a suitable size connection hole according to the size of the steel cage, and insert the protective tube into the steel cage through the connection hole on it. The protective tube can protect the steel cage and prevent it from being damaged during disassembly; 2. The separators are moved by traction ropes. Multiple separators are used to separate the pile body and the pile head, reducing the direct contact area between the pile body and the pile head. The adhesion between the separators and the concrete is also low, making it easier to disassemble the pile body and the pile head. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a whole structure schematic diagram of an auxiliary device for cast-in-place pile construction Figure 1 .

[0026] Figure 2 is a whole structure schematic diagram of an auxiliary device for cast-in-place pile construction Figure 2 .

[0027] Figure 3 is a structure schematic diagram of a connecting mechanism.

[0028] Figure 4 is a structure schematic diagram of a partition piece.

[0029] Figure 5 is a structure schematic diagram of a protective pipe.

[0030] Figure 6 is a structure schematic diagram of a stretching mechanism.

[0031] Figure 7 is a partial enlarged view of A in Figure 3 .

[0032] Figure 8 is a partial enlarged view of B in Figure 3 .

[0033] In the figure, 1, reinforcement cage; 2, protective pipe; 201, connecting hole; 202, rubber ring; 3, center ring; 301, first connecting rod; 302, connecting sleeve; 303, second connecting rod; 304, first connecting head; 305, second connecting head; 4, storage groove; 401, winding column; 402, partition piece; 403, notch; 404, sealing plate; 5, driving box; 501, motor; 502, winding column; 503, battery; 504, traction rope; 505, connecting rope; 506, sealing head; 6, connecting sleeve; 601, first fixed pad; 602, mounting box; 603, second fixed pad; 604, push rod motor. DETAILED DESCRIPTION

[0034] The application will be further described in detail below with reference to the accompanying drawings. Figure 1 - the accompanying drawings Figure 8 , of the application.

[0035] In one aspect, the application provides an auxiliary device for cast-in-place pile construction, referring to Figure 1-5 and Figure 7The utility model provides a reinforced cage protection device, including reinforced cage 1, reinforced cage is equipped with a plurality of protection pipe 2 on, protection pipe 2 is equipped with connecting hole 201 inside, the bottom fixed mounting of connecting hole 201 is equipped with rubber ring 202. According to the size selection of reinforced cage 1 has the protection pipe 2 of suitable size connecting hole 201, and the protection pipe 2 is inserted on reinforced cage 1 through the connecting hole 201 on, and the elastic action of rubber ring 202 is closely contacted with reinforced cage 1, thereby the connecting hole 201 is sealed, prevents the inside of connecting hole 201 from entering concrete, thereby the disassembly of protection pipe 2 is convenient after pouring, and the reinforced cage 1 can be protected through protection pipe 2, prevents the damage to reinforced cage when disassembling. A part of protection pipe 2 can detachably install center ring 3.

[0036] Wherein, a plurality of protection pipe 2 is fixedly installed with first connecting head 304, first connecting head 304 is inserted with first connecting rod 301, first connecting rod 301 is screw connected with connecting sleeve 302, connecting sleeve 302 is fixedly installed with second connecting rod 303, center ring 3 is fixedly installed with second connecting head 305, second connecting rod 303 is inserted on first connecting head 304, after installing protection pipe 2 on reinforced cage 1, second connecting rod 303 is inserted in second connecting head 305, and first connecting rod 301 is towards first connecting head 304, then rotates first connecting rod 301 or connecting sleeve 302, makes first connecting rod 301 and connecting sleeve 302 relatively rotate, so that first connecting rod 301 is inserted in first connecting head 304, by the connection of a plurality of first connecting rod 301 and second connecting rod 303, center ring 3 can be fixed in the center position of reinforced cage 1.

[0037] Further, connecting sleeve 302 is equipped with internal thread, and first connecting rod 301 is equipped with external thread, and the external thread is located in the inside of connecting sleeve 302, and sealing sleeve is fixedly installed on connecting sleeve 302. Sealing sleeve seals connecting sleeve 302, prevents concrete from entering the inside of connecting sleeve 302, avoids that concrete pollutes the internal thread in the inside of connecting sleeve 302 and the external thread on first connecting rod 301, so that first connecting rod 301 and connecting sleeve 302 can be reused.

[0038] Refer to Figure 3-4, the center ring 3 is provided with a plurality of slots 403, the partition sheet 402 extends to the outside of the center ring 3 through the slot 403. After pouring, the partition sheet 402 is pulled before the concrete solidifies, so that the partition sheet 402 rotates on the winding column 401 and extends to the outside of the center ring 3, the plurality of partition sheets 402 separate the pile body and the pile head, reduce the direct contact area between the pile body and the pile head, and the adhesion between the partition sheet 402 and the concrete is low, so that the pile body and the pile head are convenient to disassemble, when the partition sheet 402 is not subjected to external force, the partition sheet 402 can be reset under the action of the torsional spring, so that the partition sheet 402 is re-wound on the winding column 401.

[0039] Wherein, the center ring 3 is fixedly installed with a plurality of sealing plates 404, the sealing plate 404 corresponds to the slot 403 one by one, and the sealing plate 404 seals the slot 403. The partition sheet 402 passes through the sealing plate 404, and the sealing plate 404 fills and seals the gap between the slot 403 and the partition sheet 402, prevents the concrete from entering the inside of the storage tank 4, and ensures that the center ring 3 can be fully utilized.

[0040] Referring to Figure 6 , the other part of the protection pipe 2 is detachably provided with a stretching mechanism, the stretching mechanism corresponds to the partition sheet one by one and is detachably connected, and the stretching mechanism pulls a plurality of partition sheets 402 to extend outward. The stretching mechanism comprises a driving box 5 fixedly installed on the plurality of protection pipes 2, a motor 501 fixedly installed in the driving box 5, and a winding column 502 rotatably installed in the driving box 5. The output shaft of the motor 501 is coaxially fixedly connected with the winding column 502, the winding column 502 is fixedly installed with a traction rope 504, and the traction rope 504 is fixedly connected with two connecting ropes 505. The connecting rope 505 is fixedly connected with the partition sheet 402, the winding column 502 is driven to rotate by the motor 501, so that the winding column 502 can wind the traction rope 504, and the partition sheet 402 can be moved by the traction rope 504.

[0041] The driving box 5 is fixedly installed with a battery 503, the motor 501 is electrically connected with the battery 503, the driving box 5 is provided with a through hole through which the traction rope 504 passes, and the driving box 5 is fixedly installed with a sealing head 506. The battery 503 provides power for the motor, the sealing head 506 blocks the gap between the traction rope 504 and the through hole, prevents the concrete from entering the inside of the driving box 5, and ensures that the stretching mechanism can be reused.

[0042] Referring to Figure 8 A connecting mechanism is installed on one of the protective tubes 2, and a worry-free irrigation sensor is installed on the connecting mechanism. The connecting mechanism includes a connecting sleeve 6 fixedly installed on one of the protective tubes 2, a first fixing pad 601 fixedly installed in the connecting sleeve 6, an installation box 602 fixedly installed on one side of the connecting sleeve 6, a push rod motor 604 fixedly installed in the installation box 602, and a second fixing pad 603 fixedly installed on the output shaft of the push rod motor 604. The second fixing pad 603 is located inside the connecting sleeve 6, and the output shaft of the push rod motor 604 extends through one side of the connecting sleeve 6 into the interior of the connecting sleeve 6. The worry-free irrigation sensor is placed inside the connecting sleeve 6, and the push rod motor 604 drives the second fixing pad 603 to move toward the first fixing pad 601. The worry-free irrigation sensor can be pressed and fixed by the first fixing pad 601 and the second fixing pad 603. A pull rope is connected to the worry-free irrigation sensor. After pouring is completed, the push rod motor 604 cancels the fixation of the worry-free irrigation sensor, and the worry-free irrigation sensor can be pulled out by the pull rope for easy reuse.

[0043] Another aspect of the present invention provides a cast-in-place pile construction process, which comprises the following steps: Step 1: Put the protective tube 2 on the steel cage 1; Step 2: Fix the center ring 3 to the center of the steel cage 1 through the first connecting rod 301, the connecting sleeve 302 and the second connecting rod 303; Step 3: Fix the drive box 5 on the protective tube 2 and connect the connecting rope 505 to the separator 402; Step 4: Fix the Guan Wuyou sensor inside the connecting sleeve 6 through the connecting mechanism; Step 5: Place the steel cage into the pile hole through the lifting device, and then grout from the bottom of the pile hole; Step 6: When the concrete submerges the worry-free grouting sensor, stop grouting and expand the separator 402 inside the concrete through the stretching mechanism; Step 7: After the concrete solidifies, remove the pile head above the separator 402 and take out the protective pipe 2.

[0044] The implementation principle of the embodiment of the application is that a protective pipe 2 with a suitable size connecting hole 201 is selected according to the size of the reinforcement cage 1, and the protective pipe 2 is inserted on the reinforcement cage 1 through the connecting hole 201 on the protective pipe 2, so that the protective pipe 2 can protect the reinforcement cage 1 and prevent damage to the reinforcement cage during disassembly. The Guaunyou sensor is placed inside the connecting sleeve 6, and the second fixed pad 603 is driven by the push rod motor 604 to move towards the first fixed pad 601, so that the Guaunyou sensor can be fixed and compressed by the first fixed pad 601 and the second fixed pad 603. The height of the concrete pouring is detected by the Guaunyou sensor, and when the Guaunyou sensor detects the concrete, the pouring is stopped, and the fixation of the Guaunyou sensor by the push rod motor 604 is cancelled, so that the Guaunyou sensor can be pulled out by the pull rope, facilitating repeated use. Then the wire winding column 502 is driven to rotate by the motor 501, so that the wire winding column 502 can wind the traction rope 504, and the traction rope 504 can drive the separation piece 402 to move. The pile body and the pile head are separated by the plurality of separation pieces 402, the direct contact area between the pile body and the pile head is reduced, and the adhesion between the separation piece 402 and the concrete is low, so that the pile body and the pile head can be easily disassembled.

[0045] The embodiments of the specific implementation are the preferred embodiments of the application, and are not intended to limit the protection scope of the application, wherein the same parts are denoted by the same reference numerals. Therefore, any equivalent changes made according to the structure, shape and principle of the application should be covered by the protection scope of the application.

Claims

1. An auxiliary device for bored pile construction, comprising a steel cage (1), characterized in that: A plurality of protective tubes (2) are sleeved on the steel cage, wherein a portion of the protective tubes (2) is detachably mounted with a center ring (3), wherein a plurality of separators (402) are wound inside the center ring (3), and a stretching mechanism is detachably mounted on another portion of the protective tubes (2), wherein the stretching mechanism corresponds to the separators one by one and is detachably connected, and the stretching mechanism pulls the plurality of separators (402) to extend outwards.

2. The auxiliary device for bored pile construction according to claim 1, characterized in that: A first connector (304) is fixedly mounted on the plurality of protective tubes (2), a first connecting rod (301) is plugged into the first connecting rod (304), a connecting sleeve (302) is threadedly connected to the first connecting rod (301), a second connecting rod (303) is fixedly mounted on the connecting sleeve (302), a second connector (305) is fixedly mounted on the center ring (3), and the second connecting rod (303) is plugged into the first connecting rod (304).

3. The auxiliary device for bored pile construction according to claim 2, characterized in that: An internal thread is provided in the connecting sleeve (302), and an external thread is provided on the first connecting rod (301). The external thread is located inside the connecting sleeve (302), and a sealing sleeve is fixedly mounted on the connecting sleeve (302).

4. The auxiliary device for bored pile construction according to claim 3, characterized in that: A storage groove (4) is provided in the center ring (3), a plurality of winding posts (401) are rotatably mounted in the storage groove (4), a torsion spring is fixedly mounted on the winding post (401), the other end of the torsion spring is fixedly connected to the storage groove (4), the separator (402) is fixedly connected to the winding post (401), a plurality of notches (403) are provided on the center ring (3), and the separator (402) extends to the outside of the center ring (3) through the notches (403).

5. The auxiliary device for bored pile construction according to claim 4, characterized in that: A plurality of sealing plates (404) are fixedly mounted on the center ring (3), the sealing plates (404) corresponding to the notches (403) one by one, and the sealing plates (404) seal the notches (403).

6. The auxiliary device for bored pile construction according to claim 5, characterized in that: The stretching mechanism comprises a drive box (5) fixedly mounted on the plurality of protective tubes (2), a motor (501) fixedly mounted in the drive box (5), and a winding post (502) rotatably mounted in the drive box (5); an output shaft of the motor (501) is coaxially fixedly connected to the winding post (502); a traction rope (504) is fixedly mounted on the winding post (502); and two connecting ropes (505) are fixedly connected to the traction rope (504).

7. The auxiliary device for bored pile construction according to claim 6, characterized in that: A battery (503) is fixedly installed in the drive box (5), the motor (501) is electrically connected to the battery (503), a through hole for allowing a traction rope (504) to pass through is provided on the drive box (5), and a sealing head (506) is fixedly installed on the drive box (5).

8. The auxiliary device for bored pile construction according to claim 7, characterized in that: A connecting hole (201) is provided in the protective tube (2), and a rubber ring (202) is fixedly mounted at the bottom of the connecting hole (201).

9. The auxiliary device for bored pile construction according to claim 8, characterized in that: A connecting mechanism is installed on one of the protective tubes (2), and a worry-free sensor is installed on the connecting mechanism. The connecting mechanism includes a connecting sleeve (6) fixedly installed on one of the protective tubes (2), a first fixed pad (601) fixedly installed in the connecting sleeve (6), a mounting box (602) fixedly installed on one side of the connecting sleeve (6), a push rod motor (604) fixedly installed in the mounting box (602), and a second fixed pad (603) fixedly installed on the output shaft of the push rod motor (604), wherein the second fixed pad (603) is located inside the connecting sleeve (6), and the output shaft of the push rod motor (604) passes through one side of the connecting sleeve (6) and extends to the inside of the connecting sleeve (6).

10. A bored pile construction process, applied to the bored pile construction auxiliary device according to any one of claims 1 to 9, the construction process comprising the following steps: Step 1: Sleeve the protective tube (2) onto the steel cage (1); Step 2: The center ring (3) is fixedly installed at the center position of the steel cage (1) through the first connecting rod (301), the connecting sleeve (302) and the second connecting rod (303); Step 3: Fix the drive box (5) on the protective tube (2), and fix the connecting rope (505) to the separator (402); Step 4: Fix the Guan Wuyou sensor inside the connecting sleeve (6) through the connecting mechanism; Step 5: Place the steel cage into the pile hole through the lifting device, and then grout from the bottom of the pile hole; Step 6: When the concrete submerges the worry-free grouting sensor, stop grouting and expand the separator (402) inside the concrete through the stretching mechanism; Step 7: After the concrete solidifies, remove the pile head above the separator (402) and take out the protective pipe (2).

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