CN113356188A - Automatic inner hole sealing device and method for pile head of prestressed pipe pile - Google Patents

Abstract

The invention relates to the technical field of prestressed pipe pile head plugging, in particular to an automatic inner hole sealing device and method for a prestressed pipe pile head. Including base and service hole, the service hole has all been opened to the four sides of base, and equal sliding connection has conflict mechanism in the service hole of base, and the last fixed surface of base is connected with hoist mechanism, and hoist mechanism is connected with conflict mechanism through extrusion spring, and the upper surface equidistance of base is connected with a plurality of complementary unit. The automatic inner hole sealing device for the prestressed pipe pile head is simple in structure and convenient to operate, can realize self hole sealing of the pipe pile head through the abutting mechanism, and meanwhile, due to the fact that the inner portion of the pipe pile head is packaged, the equipment is connected with the lifting mechanism, the equipment can be rapidly disassembled, meanwhile, the auxiliary mechanism is convenient to increase the using stability of the equipment, and automatic inner hole sealing of the pipe pile head can be achieved in engineering.

Description

Automatic inner hole sealing device and method for pile head of prestressed pipe pile

Technical Field

The invention relates to the technical field of tubular pile head plugging, in particular to an automatic inner hole sealing device and method for a prestressed tubular pile head.

Background

The PHC tubular pile has the advantages of high bearing capacity, high construction speed, easy quality control and the like, and is widely applied to the industries of water transportation engineering, highway engineering, building engineering and the like. After decades of application research, the engineering field also provides new technical problems of the tubular pile foundation.

After the pile head is cut off, earth excavation is carried out to facilitate later-stage bearing platform construction, if the pile hole at the pile cutting position cannot be sealed in time, silt soil directly enters the pile hole from the pile hole to fill the pile hole, construction of a pile core reinforcement cage at the later stage is seriously affected, and therefore the pile hole needs to be sealed in time, and therefore the automatic inner hole sealing device for the pile head of the prestressed pipe pile is provided.

Disclosure of Invention

In order to solve the problem of hole sealing of a tubular pile head in the prior art, the invention provides an automatic hole sealing device and method for a prestressed tubular pile head, which can automatically seal holes in the tubular pile head.

The technical scheme adopted by the invention for solving the technical problems is as follows:

the utility model provides an automatic interior hole sealing device of prestressing force tubular pile head, includes base, a plurality of conflict mechanism and a plurality of complementary unit, conflict mechanism can outwards stretch out and draw back on the base to the chucking is in tubular pile head, complementary unit is "7" type, distributes along base circumference, can hang at tubular pile head tip.

Foretell automatic hole sealing device in prestressed pipe pile head, conflict mechanism includes expansion board, connecting rod and extrusion spring, and the extrusion spring housing is on the connecting rod, and the one end that extrusion spring is close to the expansion board is connected with expansion board or connecting rod, and the other end is connected with the base, and expansion board and base pass through slide rail structure sliding fit.

Foretell hole device seals in prestressing force tubular pile head is automatic still includes hoist mechanism, hoist mechanism includes ejector pin, mounting panel, conduction pole, goes up the top spring, and the ejector pin is connected with the mounting panel, and the top spring is connected to the mounting panel bottom, and the mounting panel is connected with the conduction pole of downward sloping all around, and the one end that the extrusion spring is close to the expansion board is connected with expansion board or connecting rod, and the other end is connected with the conduction pole.

Foretell automatic hole sealing device in prestressed pipe pile head, complementary unit includes fixing base, loop bar structure, mounting bracket, bolt and cardboard, and the upper surface equidistance of base is connected with a plurality of fixing bases, and a plurality of fixing base tops all are connected with the loop bar structure, and loop bar structure top is connected with the mounting bracket, and mounting bracket side threaded connection has the bolt, and the bolt rotates through the one side of axle with the cardboard to be connected.

Foretell automatic hole sealing device in prestressed pipe pile head, hoist mechanism still includes mount pad, sliding sleeve, fixture block, draw-in groove and rotation circle, rotates the circle and connects on the sliding sleeve top, has seted up the draw-in groove in the sliding sleeve, and the ejector pin can reciprocate in the draw-in groove, and lower part inner wall bilateral symmetry is connected with the fixture block in the sliding sleeve, the ejector pin top is connected with the limiting plate, and when the ejector pin moves down, the limiting plate can be erect to the fixture block, and is spacing to it, open at the mount pad top has the ejector pin hole, and the ejector pin passes the ejector pin hole to be connected with the mounting panel, and the mount pad passes the ejector pin cover outside the mounting panel, and the mount pad bottom is connected with base top surface middle part.

Foretell prestressing force tubular pile head is automatic seals hole device in, the usage hole has all been opened to the four sides of base, and conflict mechanism passes through slide rail structure sliding connection in the usage hole.

Foretell hole device in prestressing force tubular pile head is automatic, the equal equidistance fixedly connected with friction backing plate in the outer lane of a plurality of expansion boards, the outer wall of friction backing plate is all carved with anti-skidding line, and the mechanism of being convenient for contradicts carries out extrusion contact with the pile head inner wall.

Foretell prestressing force tubular pile head is automatic seals hole device in, the equal fixedly connected with rubber pad of outer wall of cardboard is convenient for increase the stability of complementary unit when the installation.

Foretell automatic interior hole sealing device of prestressing force tubular pile head, open threaded hole on the mounting panel, the ejector pin bottom is carved with the screw thread, with threaded hole threaded connection.

Foretell hole device seals in prestressed pipe pile head is automatic, the slide rail structure includes spout and slider, and equal equidistance is connected with the slider in the use hole in the base, and the spout of mutually supporting with the slider has all been opened to the bottom of a plurality of expansion boards. It can also be designed as follows: the equal equidistance of use downthehole in the base is opened there is the spout, and the bottom of a plurality of expansion boards all is connected with the slider of mutually supporting with the spout.

Foretell prestressing force tubular pile head is automatic to seal hole device in, loop bar structure includes top loop bar, bottom loop bar and a plurality of loop bar unit, and every loop bar unit includes a hole loop bar and a hook loop bar, and hole loop bar and hook loop bar are [ type, have all opened the trepanning on the last horizontal pole of hole loop bar, and the hook loop bar can be cup jointed at the trepanning, and top loop bar top is connected with the mounting bracket, and the bottom cup joints with the loop bar unit, and bottom loop bar top cup joints with the loop bar unit, and the bottom is connected with the fixing base.

Foretell automatic interior hole sealing device of prestressed pipe pile head, the position that the mount pad lateral wall and conduction pole suited is opened porosely, conveniently observes the state of conduction pole and mounting panel.

Foretell prestressing force tubular pile head is automatic seals hole device in, open at the top central authorities of base has the standing groove, is convenient for realize installing hoist mechanism.

Foretell automatic interior hole sealing device of prestressing force tubular pile head, the bottom loop bar rotates with the fixing base through the axle to be connected.

In order to enable the sliding to be more stable, the auxiliary plate is connected to the position, corresponding to the expansion plate, of the periphery of the base, auxiliary plate grooves are formed in the two sides of the expansion plate, and the auxiliary plate can be clamped into the expansion plate. In order to make the sealing performance of the pile head better, the auxiliary plate is as narrow as possible, and a plurality of expansion plates are spliced into a whole circle as far as possible.

An automatic inner hole sealing method for a pile head of a prestressed pipe pile comprises the following steps:

(1) lifting the lifting mechanism, driving the transmission rod to move upwards by the ejector rod, driving the expansion plate to contract inwards by the transmission rod, reducing the diameter, facilitating the placement of the abutting mechanism into the pile head of the tubular pile, erecting the mounting frame of the auxiliary mechanism at the edge of the pile head after the abutting mechanism is in place, releasing the lifting mechanism, pressing the device under the action of gravity, moving the ejector rod, the mounting plate and the transmission rod downwards, extruding the extrusion spring by the transmission rod, expanding the expansion plate of the abutting mechanism outwards under the action of the extrusion spring, and realizing inner hole sealing; the mounting plate is also a weight plate.

(2) Demolish when self-sealing hole, with the mounting bracket from pile head edge separation, promote hoist mechanism, the ejector pin drives the conduction pole and shifts up, and the expansion board inwards contracts under the drive of conduction pole, and the diameter diminishes, and the mechanism of being convenient for contradicts removes self-sealing hole.

In the automatic inner hole sealing method for the pile head of the prestressed pipe pile, in the step (1), the mounting frame of the auxiliary mechanism is erected behind the edge of the pile head, the bolt is rotated, and the clamping plate and the pile head are clamped tightly; in the step (2), when the self-sealing holes are removed, the bolts are rotated to separate the clamping plates from the pile head, and then the mounting frame is separated from the edge of the pile head.

The invention has the beneficial effects that: the equipment is integrally clamped in the pile head through the abutting mechanism, then the auxiliary mechanism is fixed, so that the equipment can be stably placed integrally, the pile head of the prestressed pipe pile is sealed through self external tension of the abutting mechanism, and foreign matters are prevented from entering the prestressed pipe pile. When equipment demolishs, the user can remove the fixed relation between complementary unit and the pile head earlier, rethread hoist mechanism removes the contact between conflict mechanism and the prestressing force tubular pile head inner wall, thereby take out the equipment is whole from the prestressing force tubular pile, hole sealing device's simple structure in this prestressing force tubular pile head is automatic, the simple operation, can realize the automatic encapsulation to tubular pile head through conflict mechanism, and simultaneously, because encapsulate in tubular pile head inside, be equipped with hoist mechanism on the equipment, can accomplish the dismantlement to equipment fast, and simultaneously, complementary unit is convenient for increase the stability in use of equipment.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a second schematic view of the overall structure of the present invention;

FIG. 3 is a schematic structural view of the interference mechanism;

FIG. 4 is one of the schematic structural views of the lifting mechanism;

FIG. 5 is a second schematic structural view of the lifting mechanism;

fig. 6 is a schematic structural view of the assist mechanism.

In the figure: 1. a base; 2. use of a hole; 3. a collision mechanism; 31. an expansion board; 32. rubbing the backing plate; 33. a connecting rod; 34. a chute; 35. a slider; 36. a compression spring; 4. a lifting mechanism; 41. a mounting seat; 42. mounting a plate; 43. a conductive rod; 44. a spring is pushed up; 45. a clamping block; 46. a card slot; 47. rotating the ring; 48. a threaded hole; 49. a top rod; 410. a sliding sleeve; 5. an auxiliary mechanism; 51. a fixed seat; 52. a loop bar; 53. a mounting frame; 54. a bolt; 55. clamping a plate; 6. a rubber pad; 7. and (6) placing the groove.

Detailed Description

Example 1

The utility model provides an automatic interior hole sealing device of prestressing force tubular pile head, includes base 1, a plurality of conflict mechanism 3 and a plurality of complementary unit 5, conflict mechanism 3 can outwards stretch out and draw back on base 1 to the chucking is in tubular pile head, complementary unit 5 is "7" type, distributes along 1 circumference of base, can hang at tubular pile head tip.

Further, the above automatic hole sealing device in prestressed pipe pile head, conflict mechanism 3 includes expansion board 31, connecting rod 33 and extrusion spring 36, and extrusion spring 36 overlaps on connecting rod 33, and extrusion spring 36 is close to the one end of expansion board 31 and is connected with expansion board 31 or connecting rod 33, and the other end is connected with base 1, and expansion board 31 and base 1 pass through slide rail structure sliding fit.

Further, the automatic hole sealing device for the pile head of the prestressed pipe pile further comprises a lifting mechanism 4, wherein the lifting mechanism 4 comprises a push rod 49, a mounting plate 42, a conducting rod 43 and an upward pushing spring 44, the push rod 49 is connected with the mounting plate 42, the bottom of the mounting plate 42 is connected with the upward pushing spring 44, the periphery of the mounting plate 42 is connected with the downward-inclined conducting rod 43, one end, close to the expansion plate 31, of the extrusion spring 36 is connected with the expansion plate 31 or the connecting rod 33, and the other end of the extrusion spring is connected with the conducting rod 43.

Further, foretell automatic interior hole sealing device of prestressed pipe pile head, complementary unit 5 includes fixing base 51, loop bar structure, mounting bracket 53, bolt 54 and cardboard 55, and the upper surface equidistance of base 1 is connected with a plurality of fixing bases 51, and a plurality of fixing bases 51 top all is connected with the loop bar structure, and loop bar structure top is connected with mounting bracket 53, and mounting bracket 53 side threaded connection has bolt 54, and bolt 54 rotates through the axle with the one side of cardboard 55 to be connected.

Further, the automatic hole sealing device in of foretell prestressing force tubular pile head, hoist mechanism 4 still includes mount pad 41, sliding sleeve 410, fixture block 45, draw-in groove 46 and rotates circle 47, rotates circle 47 and connects on sliding sleeve 410 top, has seted up draw-in groove 46 in the sliding sleeve 410, and ejector pin 49 can reciprocate in draw-in groove 46, and sliding sleeve 410 middle and lower part inner wall bilateral symmetry is connected with fixture block 45, ejector pin 49 top is connected with the limiting plate, and when ejector pin 49 moved down, fixture block 45 can erect the limiting plate, and spacing it carries out, open at mount pad 41 top has the ejector pin hole, and ejector pin 49 passes the ejector pin hole and is connected with mounting panel 42, and mount pad 41 passes the ejector pin cover outside mounting panel 42, and mount pad 41 bottom is connected with base 1 top surface middle part.

Example 2

Based on the embodiment 1 and the embodiment 2, which list several preferable technical features, the embodiment 1 can be combined with one or more of them to form a plurality of new and different technical solutions.

Preferably, foretell automatic hole sealing device in prestressed pipe pile head, use hole 2 has all been opened to the four sides of base 1, and conflict mechanism 3 passes through the slide rail structure and slides and pegs graft in use hole 2.

Preferably, foretell automatic interior hole sealing device of prestressed pipe pile head, the equal equidistance fixedly connected with friction backing plate 32 of the outer lane of a plurality of expansion boards 31, the outer wall of friction backing plate 32 is carved with anti-skidding line, and the mechanism 3 of being convenient for contradicts carries out extrusion contact with the pile head inner wall.

Preferably, the automatic inner hole sealing device for the pile head of the prestressed pipe pile is characterized in that the outer wall of the clamping plate 55 is fixedly connected with a rubber pad 6, so that the stability of the auxiliary mechanism 5 in installation is increased.

Preferably, in the automatic hole sealing device for the pile head of the prestressed pipe pile, the mounting plate 42 is provided with a threaded hole 48, and the bottom of the ejector rod 49 is provided with a thread and is in threaded connection with the threaded hole.

Preferably, foretell automatic interior hole sealing device of prestressing force tubular pile head, the slide rail structure includes spout and slider, and the impartial distance in the use hole 2 in the base 1 is connected with the slider, and the spout of mutually supporting with the slider has all been opened to the bottom of a plurality of expansion boards 31. It can also be designed as follows: sliding grooves 34 are arranged in the use holes 2 in the base 1 at equal intervals, and sliding blocks 35 matched with the sliding grooves 34 are connected to the bottoms of the plurality of expansion plates 31.

Preferably, foretell automatic interior hole sealing device of prestressed pipe pile head, loop bar structure includes top loop bar, bottom loop bar and a plurality of loop bar unit 52, and every loop bar unit 52 includes a hole loop bar and a hook loop bar, and hole loop bar and hook loop bar are [ type, have all opened the trepanning on the last horizontal pole of hole loop bar, and the hook loop bar can be cup jointed in the trepanning, and the top loop bar top is connected with mounting bracket 53, and the bottom cup joints with loop bar unit 52, and the bottom loop bar top cup joints with loop bar unit 52, and the bottom is connected with fixing base 51.

Preferably, above-mentioned automatic inner hole sealing device of prestressed pipe pile head, the position that the lateral wall of mount pad 41 and conduction pole 43 suited is opened porosely, conveniently observes the state of conduction pole 43 and mounting panel 42.

Preferably, foretell automatic interior hole sealing device of prestressed pipe pile head, open at the top center of base 1 has standing groove 7, is convenient for realize installing hoist mechanism 4.

Preferably, in the automatic inner hole sealing device for the pile head of the prestressed pipe pile, the bottom loop bar is rotatably connected with the fixed seat 51 through a shaft.

In order to enable the sliding to be more stable, auxiliary plates are connected to the positions, corresponding to the expansion plate 31, of the periphery of the base 1, auxiliary plate grooves are formed in the two sides of the expansion plate 31, and the auxiliary plates can be clamped into the expansion plate 31. In order to make the pile head more tight, the auxiliary plate is as narrow as possible, and the expansion plates 31 are as round as possible.

Example 3

An automatic inner hole sealing method for a pile head of a prestressed pipe pile comprises the following steps:

(1) lifting the lifting mechanism 4, driving the conduction rod 43 to move upwards by the ejector rod 49, driving the expansion plate 31 to contract inwards by the conduction rod 43, reducing the diameter, facilitating the placement of the abutting mechanism 3 into the pile head of the tubular pile, after the abutting mechanism 3 is in place, erecting the mounting frame 53 of the auxiliary mechanism 5 at the edge of the pile head, releasing the lifting mechanism 4, pressing down the device under the action of gravity, moving the ejector rod 49, the mounting plate 42 and the conduction rod 43 downwards, extruding the extrusion spring 36 by the conduction rod 43, and expanding outwards by the expansion plate 31 of the abutting mechanism 3 under the action of the extrusion spring 36 to realize internal hole sealing; the mounting plate is also a weight plate.

(2) When the self-sealing hole is removed, the mounting frame 53 is separated from the edge of the pile head, the lifting mechanism 4 is lifted, the ejector rod 49 drives the conduction rod 43 to move upwards, the expansion plate 31 is driven by the conduction rod 43 to contract inwards, the diameter is reduced, and the self-sealing hole is removed by the abutting mechanism conveniently.

Further, in the above automatic inner hole sealing method for the pile head of the prestressed pipe pile, in the step (1), the mounting frame 53 of the auxiliary mechanism 5 is erected behind the edge of the pile head, the bolt 54 is rotated, and the clamping plate 55 and the pile head are clamped tightly; in step (2), when the self-sealing hole is removed, the bolt 54 is rotated to separate the clamping plate 55 from the pile head, and then the mounting frame 53 is separated from the edge of the pile head.

Example 4

An automatic inner hole sealing device for a pile head of a prestressed pipe pile and a method thereof comprise a base 1 and using holes 2, wherein the using holes 2 are formed in four sides of the base 1.

Referring to fig. 1 and 2, a collision mechanism 3 is slidably connected in a use hole 2 of a base 1, a lifting mechanism 4 is fixedly connected to the upper surface of the base 1, and a plurality of auxiliary mechanisms 5 are rotatably connected to the upper surface of the base 1 at equal intervals through a shaft.

It should be noted that, through conflict mechanism 3 with the whole joint of equipment in the inside of pile head, fix complementary unit 5 afterwards, make the whole placing that can stabilize of equipment, conflict mechanism 3 can carry out the hole sealing through self external tension to the pile head of prestressing force tubular pile, prevent that there is the foreign object to enter into inside the prestressing force tubular pile. When equipment is demolishd, the user can remove the fixed spacing relation between auxiliary mechanism 5 and the pile head earlier, and the rethread is carried and is drawn hoist mechanism 4 and remove the contact between conflict mechanism 3 and the prestressed pipe stake pipe wall to take out equipment wholly from the prestressed pipe stake.

Conflict mechanism 3 includes expansion plate 31, friction backing plate 32, connecting rod 33, spout 34, slider 35 and extrusion spring 36, impartial apart from fixedly connected with slider 35 in the use hole 2 in the base 1, equal sliding connection has expansion plate 31 in base 1's the use hole 2, spout 34 with slider 35 mutually supporting has all been opened to a plurality of expansion plate 31's bottom, a plurality of expansion plates 31 are close to the equal fixedly connected with extrusion spring 36 of hoist mechanism's one end, and a plurality of extrusion springs 36 keep away from the one end of expansion plate 31 all with hoist mechanism fixed connection, the equal equidistance fixedly connected with friction backing plate 32 in a plurality of expansion plate 31's the outer lane.

When conflict mechanism 3 is used to needs, with equipment to intraductal extrude can, expansion board 31 is because extrusion spring 36's effect, the outside expansion of continuation, a plurality of expansion boards 31 are through mutually supporting of friction backing plate 32 and extrusion spring 36, mutually supporting between expansion board 31 and the base 1 encapsulates the body, connecting rod 33's existence is convenient for be connected between conflict mechanism 3 and the hoist mechanism 4, mutually supporting between spout 34 and the slider 35 has increased the stability of expansion board 31 in the operation.

In fig. 3, the outer wall of the friction backing plate 32 is engraved with anti-slip lines, so that the abutting mechanism 3 can be in extrusion contact with the inner wall of the pile head.

Referring to fig. 4 and 5, the lifting mechanism 4 includes a mounting seat 41, a mounting plate 42, a conductive rod 43, an upward spring 44, a latch 45, a slot 46, a rotating ring 47, a threaded hole 48, a top rod 49, and a sliding sleeve 410, the mounting seat 41 is fixedly connected to the top of the base 1, the mounting plate 42 is slidably connected to the inside of the mounting seat 41, the upward spring 44 is connected to the bottom of the mounting plate 42, an upper ejection spring 44 is fixedly connected on the upper surface of the base 1, the upper surface of the mounting plate 42 is in threaded connection with an ejection rod 49, the top end of the ejection rod 49 is connected with a limit plate, the sliding sleeve is sleeved outside the ejection rod in a sliding manner, the middle lower part of the inner side wall of the sliding sleeve is connected with a clamping block 45, and the two clamping blocks are symmetrically connected inside the sliding sleeve 410, the top end of the sliding sleeve 410 is fixedly connected with a rotating ring 47, the center of the upper surface of the mounting plate 42 is provided with a threaded hole 48, and the periphery of the bottom of the mounting plate 42 is rotatably connected with a plurality of conducting rods 43 through shafts.

When needing to use hoist mechanism 4, realize the promotion of position through rotating circle 47, the rethread ejector pin 49 and the mutual cooperation between the sliding sleeve 410 to user's comfort level has been increased, can take out equipment from the tube head simultaneously, and ejector pin 49's position promotes and then makes the position of mounting panel 42 promote thereupon, and the conducting rod 43 of mounting panel 42 bottom is connected with the connecting rod 33 on the mechanism 3 of contradicting through extrusion spring, and then makes the connecting rod 33 can contract in to base 1, thereby relieves from the hole sealing. The mounting plate 42 is provided with a threaded hole 48, so that the ejector rod 49 can be fixed on the mounting plate 42 through rotation, and meanwhile, in order to increase the rotation of the ejector rod 49 and the sliding sleeve 410, the lifting mechanism 4 is provided with a clamping block 45 and a clamping groove 46, so that the matching between the ejector rod 49 and the sliding sleeve 410 is more stable.

In fig. 5 and 2, the bottom end of the top rod 49 is provided with a thread which is matched with the threaded hole 48, so that the bottom end can be matched with the threaded hole 48 on the mounting plate 42 to work.

Fig. 6, complementary unit 5 includes fixing base 51, loop bar structure, mounting bracket 53, bolt 54 and cardboard 55, and the upper surface equidistance fixedly connected with of base 1's fixing base 51, a plurality of fixing base 51 tops all are connected with the loop bar structure, the equal fixedly connected with mounting bracket 53 of a plurality of loop bar structures, and mounting bracket 53 side threaded connection has bolt 54, and bolt 54 rotates through the axle and is connected with the one side of cardboard 55.

When needs use complementary unit 5, can be through placing equipment in the stress tube stake in advance, with mounting bracket 53 joint on the pile head of stress tube stake in advance, screw up cardboard 55 through bolt 54 afterwards, support tightly through the pipe wall of cardboard 55 with the stress tube stake in advance, and the loop bar structure is convenient for fix equipment on the pile head of tubular pile.

In fig. 1, 2 and 6, the outer wall of the clamping plate 55 is fixedly connected with a rubber pad 6, so that the stability of the auxiliary mechanism 5 during installation is increased.

In fig. 1, a placing groove 7 is formed in the center of the top of the base 1, so that the lifting mechanism 4 can be conveniently installed.

The working principle is as follows:

the whole equipment is clamped inside the pile head through the abutting mechanism 3, then the auxiliary mechanism 5 is fixed, when the auxiliary mechanism 5 is needed, the equipment can be placed in the prestressed pipe pile, the mounting frame 53 is clamped on the pile head of the prestressed pipe pile, then the clamping plate 55 is screwed through the bolt 54, the clamping plate 55 is fixedly connected with the pipe wall of the prestressed pipe pile, the sleeve rod structure is convenient for fixing the equipment on the pile head of the pipe pile, the whole equipment can be stably placed, when the abutting mechanism 3 is needed, the equipment is extruded into the pipe, the expansion plate 31 is continuously expanded outwards under the action of the extrusion spring 36, the expansion plates 31 are mutually matched through the friction backing plate 32 and the extrusion spring 36, the pipe body is packaged through the mutual matching between the expansion plate 31 and the base 1, the connecting rod 33 is convenient for connecting the abutting mechanism 3 and the lifting mechanism 4, the mutual cooperation between the sliding chute 34 and the sliding block 35 increases the stability of the expansion plate 31 during operation, and the pile head of the prestressed pipe pile is sealed by the self external tension of the abutting mechanism 3, so that foreign objects are prevented from entering the prestressed pipe pile. When equipment demolishs, the user can remove the fixed spacing relation between complementary unit 5 and the pile head earlier, the rethread is carried and is drawn hoist mechanism 4 and remove the contact between conflict mechanism 3 and the prestressing force tubular pile pipe wall, when needs use hoist mechanism 4, realize the promotion of position through rotating circle 47, rethread ejector pin 49 and the mutual cooperation between the sliding sleeve 410, can take out equipment from intraductally, and ejector pin 49's position promotes and then makes mounting panel 42's position promote thereupon, and the conducting rod 43 of mounting panel 42 bottom is connected through extrusion spring and the connecting rod 33 on the conflict mechanism 3, and then make connecting rod 33 can contract in to base 1, thereby remove self-sealing hole. The mounting plate 42 is provided with a threaded hole 48, so that the ejector rod 49 can be fixed on the mounting plate 42 through rotation, and meanwhile, in order to increase the rotation performance of the ejector rod 49 and the sliding sleeve 410, the lifting mechanism 4 is provided with a clamping block 45 and a clamping groove 46, so that the matching between the ejector rod 49 and the sliding sleeve 410 is more stable, and the whole equipment is taken out of the prestressed pipe pile.

The working process is as follows:

1) equipment placement: through conflict mechanism 3 with the whole joint of equipment in the inside of pile head, fix complementary unit 5 afterwards, make the whole placing that can stabilize of equipment.

2) Pile core hole sealing: when equipment is stably placed through auxiliary mechanism 5, the pile head of prestressing force tubular pile is sealed through self external tension by conflict mechanism 3, prevents to have the foreign matter to enter into inside the prestressing force tubular pile.

3) Disassembling the equipment: the user can remove the fixed relation between complementary unit 5 and the pile head earlier, and rethread hoist mechanism 4 removes the contact between conflict mechanism 3 and the stress tube stake pile head inner wall to take out equipment wholly from the stress tube stake in.

Claims (10)

1. The utility model provides an automatic interior hole sealing device of prestressing force tubular pile head, a serial communication port, including base, a plurality of conflict mechanism and a plurality of complementary unit, conflict mechanism can outwards stretch out and draw back on the base to the chucking is in tubular pile head, complementary unit is "7" type, distributes along base circumference, can hang at tubular pile head tip.

2. The automatic hole sealing device in prestressed pipe pile head of claim 1, characterized in that, conflict mechanism includes expansion board, connecting rod and extrusion spring, and extrusion spring overlaps on the connecting rod, and the one end that extrusion spring is close to the expansion board is connected with expansion board or connecting rod, and the other end is connected with the base, and expansion board and base pass through slide rail structure sliding fit.

3. The automatic hole sealing device in prestressed pipe pile head of claim 2, characterized in that, still include hoist mechanism, hoist mechanism includes ejector pin, mounting panel, conduction pole, upward top spring, and the ejector pin is connected with the mounting panel, and upward top spring is connected to the mounting panel bottom, and the mounting panel is connected with the conduction pole of downward sloping all around, and the one end that extrusion spring is close to the expansion board is connected with expansion board or connecting rod, and the other end is connected with the conduction pole.

4. The automatic inner hole sealing device for the pile head of the prestressed pipe pile as claimed in claim 1, wherein the auxiliary mechanism comprises a fixed seat, a loop bar structure, a mounting frame, a bolt and a clamping plate, the upper surface of the base is connected with a plurality of fixed seats at equal intervals, the tops of the plurality of fixed seats are connected with the loop bar structure, the top end of the loop bar structure is connected with the mounting frame, the side face of the mounting frame is in threaded connection with the bolt, and the bolt is connected with one face of the clamping plate through a shaft in a rotating mode.

5. The automatic hole sealing device in prestressed pipe pile head of claim 3, characterized in that, hoist mechanism still includes mount pad, sliding sleeve, fixture block, draw-in groove and rotation circle, rotates the circle and connects on the sliding sleeve top, has seted up the draw-in groove in the sliding sleeve, and the ejector pin can reciprocate in the draw-in groove, and lower part inner wall bilateral symmetry is connected with the fixture block in the sliding sleeve, the ejector pin top is connected with the limiting plate, and when the ejector pin moved down, the limiting plate can be erect to the fixture block, carries on spacingly to it, open at the mount pad top has the ejector pin hole, and the ejector pin passes the ejector pin hole and is connected with the mounting panel, and the mount pad passes the ejector pin cover outside the mounting panel, and the mount pad bottom is connected with base top surface middle part.

6. The automatic inner hole sealing device for the pile head of the prestressed pipe pile as claimed in claim 1, wherein the four sides of the base are provided with using holes, and the abutting mechanism is slidably connected in the using holes through a sliding rail structure.

7. The automatic inner hole sealing device for the pile head of the prestressed pipe pile as claimed in claim 2, wherein the outer rings of the plurality of expansion plates are fixedly connected with friction backing plates at equal intervals, anti-slip lines are carved on the outer walls of the friction backing plates, and the anti-slip mechanisms are in extrusion contact with the inner wall of the pile head conveniently.

8. The automatic inner hole sealing device for the pile head of the prestressed pipe pile as claimed in claim 4, wherein the outer wall of the clamping plate is fixedly connected with a rubber pad, so that the stability of the auxiliary mechanism during installation is increased.

9. The automatic hole sealing device in prestressed pipe pile head according to claim 3, characterized in that the mounting plate is provided with a threaded hole, and the bottom of the ejector rod is provided with a thread which is in threaded connection with the threaded hole.

10. An automatic inner hole sealing method for a pile head of a prestressed pipe pile is characterized by comprising the following steps:

(1) lifting the lifting mechanism, driving the transmission rod to move upwards by the ejector rod, driving the expansion plate to contract inwards by the transmission rod, reducing the diameter, facilitating the placement of the abutting mechanism into the pile head of the tubular pile, erecting the mounting frame of the auxiliary mechanism at the edge of the pile head after the abutting mechanism is in place, releasing the lifting mechanism, pressing the device under the action of gravity, moving the ejector rod, the mounting plate and the transmission rod downwards, extruding the extrusion spring by the transmission rod, expanding the expansion plate of the abutting mechanism outwards under the action of the extrusion spring, and realizing inner hole sealing;

(2) demolish when self-sealing hole, with the mounting bracket from pile head edge separation, promote hoist mechanism, the ejector pin drives the conduction pole and shifts up, and the expansion board inwards contracts under the drive of conduction pole, and the diameter diminishes, and the mechanism of being convenient for contradicts removes self-sealing hole.

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