CN113356188B - Automatic hole sealing device and method for pile head of prestressed pipe pile - Google Patents

Abstract

The invention relates to the technical field of pile head plugging of prestressed pipe piles, in particular to an automatic hole plugging device and method for pile heads of prestressed pipe piles. Including base and use hole, the four sides of base all are opened there is the use hole, and the equal sliding connection in the use hole of base has conflict mechanism, and the last fixed surface of base is connected with elevating system, and elevating system passes through extrusion spring and is connected with conflict mechanism, and the upper surface equidistance of base is connected with a plurality of complementary unit. The automatic hole sealing device of interior hole sealing of prestressing force tubular pile head simple structure, simple operation can realize the hole sealing of tubular pile head certainly through contradicting the mechanism, simultaneously, owing to encapsulate inside tubular pile head, be connected with elevating system on the equipment, can accomplish the dismantlement to equipment fast, simultaneously, auxiliary mechanism is convenient for increase the stability in use of equipment, can realize the hole sealing in the automation of tubular pile head on the engineering.

Description

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

Technical Field

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

Background

The PHC pipe 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, constructional engineering and the like. Through decades of application research, the engineering world also continuously presents new tubular pile foundation technical problems.

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

Disclosure of Invention

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

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

the utility model provides a hole sealing device in prestressing force tubular pile head is automatic, 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 the tubular pile head, complementary unit is "7" type, distributes along base circumference, can hang at tubular pile head tip.

The automatic hole sealing device of interior of prestressing force tubular pile head, the conflict mechanism includes extension 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 extension board is connected with extension board or connecting rod, and the other end is connected with the base, and extension board and base pass through slide rail structure sliding fit.

The automatic hole sealing device of the prestressed pipe pile head further comprises a lifting mechanism, wherein the lifting mechanism comprises a push rod, a mounting plate, a conductive rod and an upper top spring, the push rod is connected with the mounting plate, the bottom of the mounting plate is connected with the upper top spring, the periphery of the mounting plate is connected with the conductive rod which is inclined downwards, one end of the extrusion spring close to the expansion plate is connected with the expansion plate or the connecting rod, and the other end of the extrusion spring is connected with the conductive rod.

Foretell automatic hole sealing device in prestressing force tubular pile head, assist device 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 passes through the one side rotation of axle and cardboard to be connected.

Foretell hole sealing device in prestressing force tubular pile head is automatic, elevating system still includes mount pad, sliding sleeve, fixture block, draw-in groove and rotation circle, and the rotation circle is connected on the sliding sleeve top, and it has the draw-in groove to open 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 put forward to the fixture block, carries out spacingly to it, the ejector pin hole has been opened at the mount pad top, 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.

The automatic hole sealing device of interior of prestressing force tubular pile head, the four sides of base all open and use the hole, and the conflict mechanism is in using the downthehole through slide rail structure sliding connection.

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

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

The automatic hole sealing device for the prestressed pipe pile head is characterized in that the mounting plate is provided with a threaded hole, and the bottom of the ejector rod is carved with threads and is in threaded connection with the threaded hole.

The automatic hole sealing device of interior hole sealing of prestressing force tubular pile head, sliding rail structure includes spout and slider, and the downthehole equidistant slider that is connected with of use in the base, the spout that mutually supports with the slider all is opened to the bottom of a plurality of expansion plates. It can also be designed as: sliding grooves are formed in the using holes in the base at equal intervals, and sliding blocks matched with the sliding grooves are connected to the bottoms of the expansion plates.

Foretell automatic hole sealing device in prestressing force tubular pile head, loop bar structure includes top loop bar, bottom loop bar and a plurality of loop bar units, and every loop bar unit includes a hole loop bar and a hook loop bar, and Kong Taogan and hook loop bar are [ type ], all open the trepanning on the upper and lower horizontal pole of hole loop bar, and the hook loop bar can cup joint in the trepanning, and top loop bar top is connected with the mounting bracket, and the bottom cup joints with the loop bar unit, and the bottom loop bar top cup joints with the loop bar unit, and the bottom is connected with the fixing base.

The automatic hole sealing device for the prestressed pipe pile head is characterized in that holes are formed in the positions, corresponding to the conducting rods, of the side walls of the mounting seats, and the states of the conducting rods and the mounting plates are convenient to observe.

The automatic hole sealing device of interior of prestressing force tubular pile head, the top central authorities of base open has the standing groove, is convenient for realize installing elevating system.

According to the automatic hole sealing device for the prestressed pipe pile head, the bottom loop bar is rotationally connected with the fixing seat through the shaft.

Foretell hole sealing device in prestressing force tubular pile head is automatic, in order to make the slip more stable, the base all around with the position that expansion board suited, be connected with the auxiliary plate, open the expansion board both sides has auxiliary plate groove, auxiliary plate can block into in the expansion board. In order to make the pile head better in sealing performance, the auxiliary plates are as narrow as possible, and the expansion plates are spliced into a whole circle as much as possible.

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

(1) The lifting mechanism is lifted, the ejector rod drives the conductive rod to move upwards, the expansion plate is driven by the conductive rod to shrink inwards, the diameter is reduced, the abutting mechanism is convenient to put into the pile head of the pipe pile, after the abutting mechanism is in place, the mounting frame of the auxiliary mechanism is arranged at the edge of the pile head, the lifting mechanism is released, the device is pressed downwards under the action of gravity, the ejector rod, the mounting plate and the conductive rod move downwards, the conductive rod extrudes the extrusion spring, and the expansion plate of the abutting mechanism expands outwards under the action of the extrusion spring, so that internal hole sealing is realized; the mounting plate is also a weight plate.

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

In the above-mentioned automatic hole sealing method for the pile head of the prestressed pipe pile, in the step (1), the mounting frame of the auxiliary mechanism is arranged behind the edge of the pile head, and the bolt is rotated to clamp the clamping plate with the pile head; in the step (2), when the self-sealing hole is removed, the bolt is rotated, the clamping plate is separated from the pile head, and then the mounting frame is separated from the edge of the pile head.

The beneficial effects of the invention are as follows: according to the invention, the whole equipment is clamped in the pile head through the abutting mechanism, and then the auxiliary mechanism is fixed, so that the whole equipment can be stably placed, the abutting mechanism seals the pile head of the prestressed pipe pile through self-expansion, and foreign objects are prevented from entering the inside of the prestressed pipe pile. When equipment is dismantled, the user can remove the fixed relation between auxiliary mechanism and the pile head earlier, and the contact between conflict mechanism and the prestressing force tubular pile head inner wall is removed to the rethread elevating system to take out the equipment is whole in the prestressing force tubular pile, and this automatic interior hole sealing device of prestressing force tubular pile head simple structure, simple operation can realize the automatic encapsulation to the tubular pile head through conflict mechanism, simultaneously, because encapsulate at tubular pile head inside, be equipped with elevating system on the equipment, can accomplish the dismantlement to the equipment fast, simultaneously, auxiliary mechanism is convenient for increase the stability in use of equipment.

Drawings

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

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

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

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

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

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

In the figure: 1. a base; 2. using holes; 3. a collision mechanism; 31. an expansion board; 32. a friction pad; 33. a connecting rod; 34. a chute; 35. a slide block; 36. extruding a spring; 4. a lifting mechanism; 41. a mounting base; 42. a mounting plate; 43. a conductive rod; 44. a top spring; 45. a clamping block; 46. a clamping groove; 47. a rotating ring; 48. a threaded hole; 49. a push rod; 410. a sliding sleeve; 5. an auxiliary mechanism; 51. a fixing seat; 52. a loop bar; 53. a mounting frame; 54. a bolt; 55. a clamping plate; 6. a rubber pad; 7. and (5) placing a groove.

Detailed Description

Example 1

The utility model provides a hole sealing device in prestressing force tubular pile head is automatic, 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 the tubular pile head, complementary unit 5 is "7" formula, distributes along base 1 circumference, can hang at tubular pile head tip.

Further, the automatic hole sealing device for the prestressed pipe pile head comprises the expansion plate 31, the connecting rod 33 and the extrusion spring 36, wherein the extrusion spring 36 is sleeved on the connecting rod 33, one end of the extrusion spring 36, which is close to the expansion plate 31, is connected with the expansion plate 31 or the connecting rod 33, the other end of the extrusion spring 36 is connected with the base 1, and the expansion plate 31 and the base 1 are in sliding fit through the sliding rail structure.

Further, the automatic hole sealing device for the prestressed pipe pile head 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 upper top spring 44, the push rod 49 is connected with the mounting plate 42, the bottom of the mounting plate 42 is connected with the upper top spring 44, the periphery of the mounting plate 42 is connected with the downwards 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 is connected with the conducting rod 43.

Further, the automatic hole sealing device of interior of prestressed pipe pile head of above-mentioned, assist mechanism 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 tops all are 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 passes through the one side rotation of axle and cardboard 55 to be connected.

Further, the automatic hole sealing device for the prestressed pipe pile head comprises a mounting seat 41, a sliding sleeve 410, a clamping block 45, a clamping groove 46 and a rotating ring 47, wherein the rotating ring 47 is connected to the top end of the sliding sleeve 410, the clamping groove 46 is formed in the sliding sleeve 410, a push rod 49 can move up and down in the clamping groove 46, the clamping block 45 is symmetrically connected to the inner wall of the middle lower portion of the sliding sleeve 410 left and right, a limiting plate is connected to the top of the push rod 49, when the push rod 49 moves down, the limiting plate can be supported by the clamping block 45 to limit the limiting plate, a push rod hole is formed in the top of the mounting seat 41, the push rod 49 passes through the push rod hole to be connected with the mounting plate 42, the mounting seat 41 passes through the push rod to cover the mounting plate 42, and the bottom of the mounting seat 41 is connected with the middle of the top surface of the base 1.

Example 2

Based on example 1, example 2 illustrates several preferred technical features, and example 1 may alternatively or additionally be combined therewith, so as to form a plurality of new and different technical solutions.

Preferably, in the automatic hole sealing device for a prestressed pipe pile head, the four sides of the base 1 are provided with the use holes 2, and the abutting mechanism 3 is slidably inserted into the use holes 2 through a sliding rail structure.

Preferably, in the automatic hole sealing device for a prestressed pipe pile head, the outer rings of the expansion plates 31 are fixedly connected with friction base plates 32 at equal intervals, and anti-skid patterns are engraved on the outer walls of the friction base plates 32, so that the abutting mechanism 3 is in extrusion contact with the inner wall of the pile head.

Preferably, in the automatic hole sealing device for a prestressed pipe pile head, the outer walls of the clamping plates 55 are fixedly connected with rubber pads 6, so that stability of the auxiliary mechanism 5 during installation is improved.

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

Preferably, the automatic hole sealing device for the prestressed pipe pile head comprises a sliding groove and a sliding block, wherein the sliding blocks are connected in the use holes 2 in the base 1 at equal intervals, and the bottoms of the expansion plates 31 are provided with the sliding grooves matched with the sliding blocks. It can also be designed as: sliding grooves 34 are formed in the using 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 expansion plates 31.

Preferably, the automatic hole sealing device for the prestressed pipe pile head comprises a top loop bar, a bottom loop bar and a plurality of loop bar units 52, wherein each loop bar unit 52 comprises a hole loop bar and a hook loop bar, the Kong Taogan and hook loop bars are of a shape, the upper cross bars and the lower cross bars of the hole loop bars are all provided with loop holes, the hook loop bars can be sleeved in the loop holes, the top loop bar top ends are connected with the mounting frame 53, the bottom ends are sleeved with the loop bar units 52, the bottom loop bar top ends are sleeved with the loop bar units 52, and the bottom ends are connected with the fixing seats 51.

Preferably, in the automatic hole sealing device for a prestressed pipe pile head, holes are formed in the side wall of the mounting seat 41 and the position corresponding to the conductive rod 43, so that the states of the conductive rod 43 and the mounting plate 42 can be conveniently observed.

Preferably, in the automatic hole sealing device for a prestressed pipe pile head, 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.

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

The automatic hole sealing device of interior of prestressing force tubular pile head, in order to make the slip more stable, the position that base 1 all around and extension board 31 suited is connected with the auxiliary plate, and the extension board 31 both sides are opened and are had auxiliary plate groove, and the auxiliary plate can block into in the extension board 31. In order to make the pile head better in tightness, the auxiliary plates are as narrow as possible, and the expansion plates 31 are spliced into a complete circle as much as possible.

Example 3

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

(1) Lifting the lifting mechanism 4, driving the conducting rod 43 to move upwards by the ejector rod 49, inwards shrinking the expansion plate 31 under the driving of the conducting rod 43, reducing the diameter, facilitating the placing of the abutting mechanism 3 into the pile head of the pipe pile, supporting the supporting mechanism 3 in place, supporting the mounting frame 53 of the auxiliary mechanism 5 at the edge of the pile head, releasing the lifting mechanism 4, downwards pressing the device under the action of gravity, and downwards moving the ejector rod 49, the mounting plate 42 and the conducting rod 43, extruding the extrusion spring 36 by the conducting rod 43, and outwards expanding the expansion plate 31 of the abutting mechanism 3 under the action of the extrusion spring 36 to realize inner 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 conductive rod 43 to move upwards, the expansion plate 31 is driven by the conductive rod 43 to shrink inwards, the diameter is reduced, and the self-sealing hole is conveniently removed by the abutting mechanism.

Further, in the above-mentioned automatic 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 set up behind the edge of the pile head, the bolt 54 is turned, and the clamping plate 55 is clamped with the pile head; in step (2), when the self-sealing hole is removed, the bolts 54 are turned 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

The automatic hole sealing device comprises a base 1 and using holes 2, wherein the four sides of the base 1 are provided with the using holes 2.

In fig. 1 and fig. 2, the use hole 2 of the base 1 is internally and slidably connected with a collision mechanism 3, the upper surface of the base 1 is fixedly connected with a lifting mechanism 4, and the upper surface of the base 1 is equidistantly connected with a plurality of auxiliary mechanisms 5 through shaft rotation.

It should be noted that, through the whole joint of conflict mechanism 3 with equipment in the inside of pile head, fix auxiliary mechanism 5 afterwards, make equipment wholly can be stable place, conflict mechanism 3 can be through the pile head of self abduction to the prestressing force tubular pile hole sealing, prevent that there is the foreign object to enter into the prestressing force tubular pile inside. When the device is dismantled, a user can firstly remove the fixed limiting relation between the auxiliary mechanism 5 and the pile head, and then remove the contact between the abutting mechanism 3 and the wall of the prestressed pipe pile through the lifting mechanism 4, so that the whole device is taken out of the prestressed pipe pile.

The conflict mechanism 3 includes expansion board 31, friction backing plate 32, connecting rod 33, spout 34, slider 35 and extrusion spring 36, equal distance fixedly connected with slider 35 in the use hole 2 in the base 1, equal sliding connection has expansion board 31 in the use hole 2 of base 1, spout 34 mutually supporting with slider 35 is all opened to the bottom of a plurality of expansion boards 31, a plurality of expansion boards 31 are close to the equal fixedly connected with extrusion spring 36 of one end of elevating system, and a plurality of extrusion spring 36 keep away from the one end of expansion board 31 all with elevating system fixed connection, the equal equidistance fixedly connected with friction backing plate 32 in the outer lane of a plurality of expansion boards 31.

When the conflict mechanism 3 is needed to be used, the device is extruded into the pipe, the expansion plates 31 are continuously expanded outwards under the action of the extrusion springs 36, the expansion plates 31 are mutually matched with the base 1 through the friction base plates 32 and the extrusion springs 36, the pipe body is packaged through the mutual matching between the expansion plates 31 and the base 1, the connection rod 33 is convenient to connect between the conflict mechanism 3 and the lifting mechanism 4, and the stability of the expansion plates 31 in operation is improved due to the mutual matching between the sliding grooves 34 and the sliding blocks 35.

In fig. 3, the outer walls of the friction pad 32 are engraved with anti-slip patterns, so that the abutting mechanism 3 is in extrusion contact with the inner wall of the pile head.

In fig. 4 and 5, the lifting mechanism 4 comprises a mounting seat 41, a mounting plate 42, a conducting rod 43, an upper top spring 44, a clamping block 45, a clamping groove 46, a rotating ring 47, a threaded hole 48, a top rod 49 and a sliding sleeve 410, wherein the top of the base 1 is fixedly connected with the mounting seat 41, the mounting plate 42 is slidably connected with the inside of the mounting seat 41, the bottom of the mounting plate 42 is connected with the upper top spring 44, the upper top spring 44 is fixedly connected with the upper surface of the base 1, the upper surface of the mounting plate 42 is in threaded connection with the top rod 49, the top end of the top rod 49 is connected with a limiting plate, the sliding sleeve is sleeved outside the top rod, the middle lower part of the inner side wall of the sliding sleeve is connected with the clamping block 45, the two clamping blocks are symmetrically connected with the inside of the sliding sleeve 410, the top end of the sliding sleeve 410 is fixedly connected with the rotating ring 47, the center of the upper surface of the mounting plate 42 is provided with the threaded hole 48, and the periphery of the bottom of the mounting plate 42 is connected with a plurality of conducting rods 43 through shaft rotation.

When the lifting mechanism 4 is needed, the lifting of the position is realized through the rotating ring 47, and the ejector rod 49 and the sliding sleeve 410 are matched with each other, so that the use comfort of a user is improved, meanwhile, the equipment can be taken out of the pipe head, the position of the ejector rod 49 is lifted, the position of the mounting plate 42 is lifted accordingly, the conducting rod 43 at the bottom of the mounting plate 42 is connected with the connecting rod 33 on the abutting mechanism 3 through the extrusion spring, and the connecting rod 33 can be contracted inwards towards the base 1, so that the self-sealing hole is relieved. The mounting plate 42 is provided with the 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 rotatability of the ejector rod 49 and the sliding sleeve 410, the lifting mechanism 4 is provided with the clamping block 45 and the clamping groove 46, so that the cooperation between the ejector rod 49 and the sliding sleeve 410 is more stable.

In fig. 5 and 2, the bottom end of the ejector rod 49 is provided with threads which are matched with the threaded holes 48, so that the ejector rod can be matched with the threaded holes 48 on the mounting plate 42 to work.

Fig. 6, the auxiliary mechanism 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 is a plurality of fixing base 51, and a plurality of fixing base 51 tops all are connected with the loop bar structure, and a plurality of loop bar structures all fixedly connected with mounting bracket 53, and mounting bracket 53 side threaded connection has bolt 54, and bolt 54 passes through the one side rotation of axle and cardboard 55 and is connected.

When the auxiliary mechanism 5 is needed, the installation frame 53 can be clamped on the pile head of the prestressed pipe pile by placing the equipment in the prestressed pipe pile, then the clamping plate 55 is screwed down through the bolts 54, the pipe wall of the prestressed pipe pile is abutted against the clamping plate 55, and the loop bar structure is convenient for fixing the equipment on the pile head of the pipe pile.

In fig. 1, 2 and 6, the outer walls of the clamping plates 55 are fixedly connected with rubber pads 6, so that stability of the auxiliary mechanism 5 during installation is improved.

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

Working principle:

the whole joint of equipment is in the inside of pile head through conflict mechanism 3, afterwards fix auxiliary mechanism 5, when needs use auxiliary mechanism 5, can be through placing the equipment in the prestressing force tubular pile, with the joint of mounting bracket 53 on the pile head of prestressing force tubular pile, afterwards screw up cardboard 55 through bolt 54, pipe wall fixed connection through cardboard 55 and prestressing force tubular pile, and the loop bar structure is convenient for fix the equipment on the pile head, make equipment wholly can stable place, when needs use conflict mechanism 3, extrude the equipment can in the pipe, expansion board 31 is because the effect of extrusion spring 36, the outwards expansion of persistence, the cooperation between a plurality of expansion boards 31 and the base 1 encapsulates the body through friction backing plate 32, the existence of connecting rod 33 is convenient for be connected between conflict mechanism 3 and the elevating system 4, the stability of expansion board 31 when the operation has been increased through the outer tension of conflict mechanism 3 self to the pile head of prestressing force tubular pile, prevent that there is the foreign object entering into the prestressing force tubular pile inside. When the device is dismantled, a user can firstly remove the fixed limiting relation between the auxiliary mechanism 5 and the pile head, then the lifting mechanism 4 is lifted to remove the contact between the abutting mechanism 3 and the wall of the prestressed pipe pile, when the lifting mechanism 4 is required to be used, the lifting of the position is realized through the rotating ring 47, the device can be taken out of the pipe through the mutual matching between the ejector rod 49 and the sliding sleeve 410, the position of the ejector rod 49 is lifted so as to further lift the position of the mounting plate 42, and the conducting rod 43 at the bottom of the mounting plate 42 is connected with the connecting rod 33 on the abutting mechanism 3 through the extrusion spring, so that the connecting rod 33 can be contracted inwards to the base 1, and the self-sealing hole is removed. The mounting plate 42 is provided with the threaded hole 48, so that the ejector rod 49 can be fixed on the mounting plate 42 through rotation, meanwhile, in order to increase the rotatability of the ejector rod 49 and the sliding sleeve 410, the lifting mechanism 4 is provided with the clamping block 45 and the clamping groove 46, so that the cooperation between the ejector rod 49 and the sliding sleeve 410 is more stable, and the whole device is taken out of the prestress tubular pile.

The working flow is as follows:

1) And (3) equipment placement: the whole equipment is clamped inside the pile head through the abutting mechanism 3, and then the auxiliary mechanism 5 is fixed, so that the whole equipment can be stably placed.

2) And (3) pile core hole sealing: when equipment is stably placed through the auxiliary mechanism 5, the abutting mechanism 3 seals the pile head of the prestressed pipe pile through self-expansion, so that foreign objects are prevented from entering the prestressed pipe pile.

3) And (3) equipment disassembly: the user can remove the fixed relation between the auxiliary mechanism 5 and the pile head firstly, and then the contact between the abutting mechanism 3 and the inner wall of the pile head of the prestressed pipe pile is removed through the lifting mechanism 4, so that the whole equipment is taken out of the prestressed pipe pile.

Claims (6)

1. The automatic hole sealing device for the prestressed pipe pile head is characterized by comprising a base, a plurality of abutting mechanisms, a plurality of auxiliary mechanisms and a lifting mechanism, wherein the abutting mechanisms can outwards stretch on the base so as to be clamped in the pipe pile head, and the auxiliary mechanisms are 7-shaped and distributed along the circumferential direction of the base and can be hung at the end part of the pipe pile head;

the abutting mechanism comprises an expansion plate, a connecting rod and an extrusion spring, the extrusion spring is sleeved on the connecting rod, one end of the extrusion spring, which is close to the expansion plate, is connected with the expansion plate or the connecting rod, the other end of the extrusion spring is connected with the base, and the expansion plate and the base are in sliding fit through a sliding rail structure;

the lifting mechanism comprises a push rod, a mounting plate, a conductive rod, an upper push spring, a mounting seat, a sliding sleeve, a clamping block, a clamping groove and a rotating ring, wherein the push rod is connected with the mounting plate; the periphery of the bottom of the mounting plate is rotationally connected with a plurality of conductive rods through a shaft;

the auxiliary mechanism comprises fixing seats, a loop bar structure, a mounting frame, bolts and clamping plates, wherein a plurality of fixing seats are connected to the upper surface of the base at equal intervals, the loop bar structure is connected to the tops of the fixing seats, the mounting frame is connected to the top end of the loop bar structure, the bolts are connected to the side faces of the mounting frame through threads, and the bolts are connected with one face of the clamping plates through shafts in a rotating mode.

2. The automatic hole sealing device for the prestressed pipe pile head of 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.

3. The automatic hole sealing device for the prestressed pipe pile head according to claim 1, wherein the outer rings of the expansion plates are fixedly connected with friction base plates at equal intervals, and the outer walls of the friction base plates are carved with anti-skid patterns so as to facilitate the extrusion contact between the abutting mechanisms and the inner wall of the pile head.

4. The automatic hole sealing device for the prestressed pipe pile head according to claim 1, wherein the outer walls of the clamping plates are fixedly connected with rubber pads, so that the stability of the auxiliary mechanism during installation is improved.

5. The automatic hole sealing device for the prestressed pipe pile head according to claim 1, wherein the mounting plate is provided with a threaded hole, and the bottom of the ejector rod is provided with threads in threaded connection with the threaded hole.

6. An automatic hole-sealing method of an automatic hole-sealing device for a pile head of a prestressed pipe pile according to any one of claims 1 to 5, comprising the following steps:

(1) The lifting mechanism is lifted, the ejector rod drives the conductive rod to move upwards, the expansion plate is driven by the conductive rod to shrink inwards, the diameter is reduced, the abutting mechanism is convenient to put into the pile head of the pipe pile, after the abutting mechanism is in place, the mounting frame of the auxiliary mechanism is arranged at the edge of the pile head, the lifting mechanism is released, the device is pressed downwards under the action of gravity, the ejector rod, the mounting plate and the conductive rod move downwards, the conductive rod extrudes the extrusion spring, and the expansion plate of the abutting mechanism expands outwards under the action of the extrusion spring, so that internal hole sealing is realized;

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