CN1603523A - Upper screw lower connecting pile fastener and precast member - Google Patents

Abstract

The invention involves a kind of tube column to meet the buckle, as well as uses with the time mouth constitution pre-stressed high strength pre- workpiece and -odd in view of the fact that with the between between connection structure and the connection method, is the pre- workpiece to meet buckles with the pre- workpiece manufacture domain. On under the spiral goes against pile extension buckles by pulls the cap nut, inflates the screw and goes against pulls the cap nut constitution, pulls the cap nut screw together in the spiral which inflates the screw wire shorts, inflates the screw the inflation measure expansion in to go against pulls in the cap nut in the inflation cavity, when pile extension, demands the collection attire two maybe certain to pull the cap nut with the between nose minute to buckle goes against pulls the cap nut mouth which corresponds with the prefabrication, inflates the screw the spiral wire shorts screw together in pulls the cap nut screw thread in, Inflates the screw the inflation to carefully examine like goes against pulls the cap nut the inflation cavity also the inflation sells under the function in its nose to inflate in goes against pulls the cap nut in the inflation cavity, completes docking between the pre- workpiece and pre- workpiece.

Description

Apical grafting stake button and prefabricated component under the last spiral shell

Technical field:

The present invention relates to a kind of pile tube connects button, precast plate and connects that button, bridge pier connect button, bridge connects button and electric pole interface and prefabricated component thereof, and adopt pile tube to connect button, precast plate to connect button, bridge pier and connect button, bridge and connect syndeton and method of attachment between being connected between being connected between being connected between prestressed high strength tubular that button and electric pole interface constitutes and pile tube and pile tube, precast plate and precast plate, bridge pier and bridge pier, electric pole preform rod and preform rod, the genus prefabricated component connects to be detained and prefabricated component manufacturing field.

Background technology:

Notice of authorization CN2495685Y, title " prestressed concrete pipe pile snap joint ", this joint comprises respectively with last, stake is plugged into and is held two affixed end plates, connecting pin, offer screwed hole in the end plate of last stake, connecting pin one end is threaded and can cooperates with the screwed hole of last stake end plate, the other end is square, and both sides have to stagger closes tooth, the end plate below of following stake is embedded with connector box, between two ends of connector box and two pin plates compression spring is housed, the square hole that one end of connecting pin band engaging tooth can pass down on the end plate of stake inserts between two pin plates, on it engaging tooth can be meshing with each other with the tooth of pin plate one side.Its weak point: the one, because following end plate only depends on 6 connector boxs, last stake only depends on volume less than the termination of connector box and the concrete setting in the pile tube together, and can't be connected as a single entity with the longitudinal reinforcement in the pile tube, can't constitute overall structure with the cage of reinforcement in the pile tube, it connects suitable intensity initiative and reliability can't guarantee at all, particularly when connector box and termination are subjected to external impacts, its connector box produces with concrete inevitably with the termination and separates, can't guarantee to go up stake and following reliable the butt joint, this is present present technique field one of insurmountable technical barrier so far; The 2nd, the compression spring in the connector box in the pile crown plate up and down, after pile tube in depth touches underground water down, produce corrosion inevitably, As time goes on the elasticity of its compression spring will progressively disappear, the pile extension fracture takes place at last inevitably, seriously have influence on the safety factor and the safety of the building of building, this not only exists in the docking of the pile tube of this structure and pile tube, and in the docking of the pile tube of other tube pile structure and pile tube, seriously exist, be the present technique field so far still unsolved technical barrier two; The 3rd, when prefabricated, can't solve up and down pile crown plate and concrete and between the crackle that produced and the spillage phenomenon that caused of pile crown plate up and down, therefore reduced concrete intensity, easily pile breaking phenomenon taken place, this be the present technique field so far still unsolved technical barrier three; The 4th, the skirtboard that had of pile crown plate up and down, the circumferential reinforcement that pilespacing head plate place preceding 5～6 is enclosed can't be put and be welded on the longitudinal reinforcement, therefore the length that the reinforcing bar longitudinal extension is produced when haling longitudinal reinforcement, make before the pile crown plate place on several meters to tens of meters the longitudinal reinforcement acyclic at all to reinforcing bar, prefabricated pile tube, fragmentation takes place in its one inevitably, gently then influence piling quality, heavy then cause piling failure, this is that present present technique field is wanted to solve, but so far four of still unsolved technical barrier; The 5th, can't solve some longitudinal reinforcement longitudinal extension uniformity in the pile tube, can't realize that standardization hales the purpose of reinforcing bar, the bad aftereffect that is produced is: can't guarantee pile tube intensity, can't guarantee the uniformity of some pile tube inherent qualities, be that present present technique field is wanted to solve, but so far five of still unsolved technical barrier; The 6th, cost expense height, the fabricating cost of every block of pile crown plate up to 300 yuan about, increased construction costs widely.

Summary of the invention:

Purpose of design: avoid the weak point in the background technology, designing a kind of one is from escape to eliminate upper and lower pile crown plate, the deficiency of avoiding background technology to be produced thus at all; The 2nd, guarantee that the steel hoop on the pile tube skeleton not only can be around to pile tube skeleton two ends, and can guarantee that its point is welded on the longitudinal reinforcement of skeleton that guarantee the uniformity of pile tube intensity, the fracture of fundamentally avoiding pile tube is with broken; The 3rd, fundamentally solve some longitudinal reinforcement longitudinal extension uniformity in the pile tube, reinforcing bar is haled in the realization standardization, guarantees the uniformity of industrialized mass production pile tube inherent quality; The 4th, guaranteeing to reduce the cost of production of pile tube (bridge prefabrication plate, electric pole precast body etc.) widely under the pile tube butt joint reliable quality prerequisite.

Design scheme: in order to realize purpose of design of the present invention, the present invention adopts the expansion principle to force the setscrew moment formation expansion between the pile tube that needs pile extension to be docked.On structure design: 1, the design of drawing nut of rising is one of feature of the present invention, and its major function is: the one, and rise and draw the screw thread in the nut and the screw of setscrew body section to spin, work to hale reinforcing bar, pile extension; The 2nd, have a reinforced hole at the bottom of the cap of nut, the periphery of reinforced hole is reinforcing bar heading Ka Tai, this reinforcing bar heading card platform can be stuck in the reinforcing bar heading that will connect firmly to rise and draw in the nut.2, to draw the design of nut be two of feature of the present invention on the top, and its major function is: the one, hale the longitudinal reinforcement in the pile tube; The 2nd, be prefabricated component with prefabricated component between (being connected between being connected between pile tube and pile tube, between precast plate and precast plate, bridge pier and bridge pier, electric pole preform rod with between preform rod) when docking, it is the expansion connection chamber of expander in the setscrew; The 3rd, the top is provided with a reinforced hole at the bottom of drawing the cap of nut, and the periphery of reinforced hole is reinforcing bar heading Ka Tai, and this reinforcing bar heading card platform can be stuck in the reinforcing bar heading that will connect firmly to rise and draw in the nut.Haling longitudinal reinforcement is meant: the top draw nut with rise draw nut to be through the longitudinal reinforcement of pile tube after, heading is upset at the two ends of its longitudinal reinforcement, its heading is connected to the top firmly and draws nut and rise on the reinforcing bar heading Ka Tai that draws nut, rising this moment draws an end of nut to fix, the top is haled screw and can be realized haling the purpose that longitudinal reinforcement extends after drawing the screw thread in the nut and hale screw and spinning; The 4th, the design that has the tapering expansion chamber in the nut is drawn on the top, can satisfy the expansion needs of the expander of setscrew, and the expander in the setscrew is locked in the expansion chamber after expansion firmly.3, the design of setscrew is three of a feature of the present invention, its major function is: the one, and the expander in the setscrew can expansion instantaneous expansion distortion in expansion chamber in the nut is drawn on the top after being subjected to the inserting by force of its pin that expands, and the expander after the dilatancy can be locked in the expansion chamber firmly; The 2nd, the screw section in the setscrew with rise draw nut to spin after, can moment draw the nut realization plug-in type be swollen and dock with the top, thus can be with docking between pile tube and pile tube with expansion ways of connecting permanent finishing of moment.The bloated pin of setscrew expander end be expander be able to that instantaneous expansion struts basic, it is similar to, and taper-----point is gone up thick down, after inserting expander, expander can be strutted, produces permanent deformation, permanent locking in the expansion chamber of nut is drawn on the top along its guiding wire casing moment of expanding.

Technical scheme 1: upward apical grafting stake button draws nut (3), setscrew (4) and top to draw nut (5) to constitute under the spiral shell by rising, rise and draw nut (3) to be screwed in the screw section of setscrew (4), during pile extension, the expander of setscrew (4) expands in expansion chamber in the nut (5) is drawn on the top.

Technical scheme 2: the prestressed high strength prefabricated component that constitutes by apical grafting stake button under the last spiral shell, prefabricated component (17) is built-in with by some longitudinal reinforcements (18) and circumferential reinforcement or transverse reinforcement (19) formation prefabricated component cage of reinforcement, the heading (2) at the two ends of some longitudinal reinforcements (18) is connected to respectively to rise and draws nut (3) and top to draw on nut (5) the reinforcing bar heading Ka Tai (8,11) in the prefabricated component.

Technical scheme 3: prestressed high strength prefabricated component that constitutes by apical grafting stake button under the last spiral shell and the docking structure between prefabricated component, the end of two prefabricated components that dock is respectively that several rise and draw nut mouth and corresponding with it top to draw the nut mouth, the screw section of setscrew is screwed in to rise and draws in the screw thread of nut, the expander of setscrew inserts the expansion chamber that draws nut in the top and expander and expands in the expansion chamber of nut is drawn on the top under expanding the pin effect in its end, finishes docking between prefabricated component and prefabricated component.

Technical scheme 4: the docking calculation of making the prestressed high strength prefabricated component by apical grafting stake button under the last spiral shell, rise and draw nut and top to draw spiro cap to be enclosed within respectively on some the longitudinal reinforcements, heading is upset at the two ends of some longitudinal reinforcements and heading is stuck on the heading Ka Tai that draws nut that rises just and draw on the heading Ka Tai of nut on the top, rise and draw the nut end to be fixed on the inboard of prefabricated component die cavity one end plate by screw, the top draws the end of nut to adopt the top to draw screw to be fixed on another end plate of prefabricated component die cavity, the circumferential reinforcement annular is on longitudinal reinforcement, the prefabricated component cage of reinforcement is put into shaping mould, placing of concrete, matched moulds is haled the top and is drawn the end plate of screw end to the power that sets, force some synchronous reinforcing bars to extend to centrifugal casting or vibration foundry goods after the length that sets, promptly get high strength prefabricated component with roof construction under the last spiral shell.

The present invention compares with background technology, and the one, the defective that the pipe pile reinforcing bar skeleton that does not fundamentally exist background technology to exist separates with pile tube end plate two; The 2nd, the pile extension phenomenon of rupture takes place when fundamentally avoiding present all pile tubes and pile tube pile extension or behind the pile extension, guaranteed the safety factor and the safety of piling quality, fundamentally guaranteed building, particularly the reliability of high-rise building foundation quality; The 3rd, the present invention is not owing to exist up and down pile crown plate, therefore do not have the crackle that produced between pile crown end plate and the concrete and the spillage phenomenon that caused of pile crown plate up and down, guaranteed pile tube globality and intensity, eliminated the pile breaking phenomenon of background technology existence; The 4th, because the skirtboard that the present invention does not exist pile crown plate up and down to be had, therefore can make circumferential reinforcement spot weld the longitudinal reinforcement two ends, do not exist to leak to weld and punctuate, when haling longitudinal reinforcement, steel hoop on the longitudinal reinforcement can extend with the extension of longitudinal reinforcement synchronously, guaranteed the uniformity and the globality of pipe pile reinforcing bar skeleton quality, has fundamentally solved piling that background technology exists when stressed, its pile tube fragmentation, the fracture defective; The 5th, solve the problem that some longitudinal reinforcements in the pile tube can't the standardization longitudinal extension, realized the uniformity of pile tube intensity, pile tube inherent quality; The 6th, reduced the cost of production of pile tube widely, only remove one of tubular pile head end plate, only domestic annual demand is saved about 30 yuan of cost for every more than 100,000,000, can produce unexpected economic benefit and social benefit every year for saving RMB more than 3,000,000,000 yuan; The 7th, start made between pile tube and pile tube, the novel docking structure between precast plate and precast plate, between bridge pier and bridge pier, between electric pole preform rod and preform rod.

Description of drawings:

Fig. 1 is a structural representation of going up apical grafting stake button under the spiral shell.

Fig. 2 rises to draw the structural representation of nut.

Fig. 3 is the structural representation that nut is drawn on the top.

Expander end construction schematic diagram in Fig. 4 setscrew.

Fig. 5 is a setscrew master TV structure schematic diagram.

Fig. 6 is the structural representation that expands and sell.

Fig. 7 is the structural representation of prestressed high strength tubular.

Fig. 8 goes up the pile tube of apical grafting stake button formation under the spiral shell and the pile extension structural representation between pile tube or bridge pier and bridge pier or electric pole and electric pole.

Fig. 9 goes up the precast plate of apical grafting stake button formation under the spiral shell and the pile extension structural representation between precast plate.

Figure 10 is the partial structurtes schematic diagram of prestressed high strength tubular moulding.

The specific embodiment:

Embodiment 1: with reference to accompanying drawing 1～6.Apical grafting stake button draws nut 3, setscrew 4 and top to draw nut 5 to constitute under the last spiral shell by rising, and rises to draw nut 3 to be screwed in the screw section of setscrew 4, and during butt joint, the expander of setscrew 4 expands in expansion chamber in the nut 5 is drawn on the top, sees accompanying drawing 1.Rise and draw nut 3 to adopt metal (as steel, stainless steel, alloy steel etc.) or nonmetals (as the highstrenghtpiston, the high strength synthetic plastic, pottery etc.) by existing casting or injection moulding or ceramic sintering or machining technique making, the center at the bottom of the cap that draws nut that rises has reinforced hole 7, the periphery of reinforced hole 7 is a reinforcing bar heading card platform 8, rise and draw the screw thread in the nut 3 to hale reinforcing bar, pile extension effect, see accompanying drawing 2 for haling the pile extension screw thread, plaing; The top draws nut 5 to adopt metal (as steel, stainless steel, alloy steel etc.) or nonmetals (as the highstrenghtpiston, high strength synthetic plastic, pottery etc.) make by existing casting or injection moulding or ceramic sintering or machining technique, the top draw nut 5 tops for hale screw thread 9, the bottom is an expansion chamber 10, the center at the bottom of the cap of nut 5 of drawing, top has reinforced hole 12, the periphery of reinforced hole is a reinforcing bar heading card platform 11, and the top draws the expansion chamber 10 in the nut 5 to have tapering, and it is big down little that cavity is; The top draws the screw thread 9 on nut 5 tops for haling screw thread, rises and hales action of steel bars, pushes up in the expansion chamber 10 that draws in the nut for the ease of the 16 moments insertion of the expander in the setscrew 4, draws the entrance point of haling screw thread of nut that one circle enlarging is arranged on the top, sees accompanying drawing 3.Setscrew 4 adopts metal (as steel, stainless steel, alloy steel etc.) or nonmetals (as the highstrenghtpiston, high strength synthetic plastic etc.) by existing casting or injection moulding or machining technique making, setscrew 4 is by the pin 6 that expands, expander 16 and screw 15 constitute, expand 16) and screw 15 be overall structure, the head of swollen pin 6 is inserted in the expander upper end centre pilot passage 13, vertically have 1 or 2 or many guiding wire casing 14 that expands on the wall of guide channel, push up in the expansion chamber 10 that draws in the nut for the ease of the 16 moments insertion of the expander in the setscrew 4, the arm of angle that connects of the end of the expander of setscrew 4 is outwelled a circle, see attached Figure 4 and 5.

Embodiment 2: with reference to accompanying drawing 7.On the basis of embodiment 1, the prestressed high strength tubular (pipe shape, square pipe pile etc.) that constitutes by apical grafting stake button under the last spiral shell, pile tube 17 is built-in with by some longitudinal reinforcements 1 and circumferential reinforcement 18 and constitutes the pile tube skeleton, the heading 2 at the two ends of some longitudinal reinforcements 1 is connected to respectively to rise and draws nut 3 and top to draw on nut 5 reinforcing bar heading card platforms 8 and 11 in the pile tube, the screw section of setscrew 4 is screwed in to rise draws that (this setscrew 4 is when pile tube docks with pile tube, and the screw section of its setscrew is screwed in to rise and carries in the nut 3 in the nut 3; When pile tube did not dock with pile tube, its setscrew 4 drew nut 3 to separate with rising, separately keeping).

Embodiment 3: with reference to accompanying drawing 8.On the basis of embodiment 1 and 2, between prestressed high strength tubular that constitutes by apical grafting stake button under the last spiral shell and pile tube or the pile extension structure between bridge pier and bridge pier or electric pole and electric pole, the end of two root canal piles of the pile extension of wanting is respectively that several rise and draw nut mouth and corresponding with it top to draw the nut mouth, the screw section of setscrew is screwed in to rise and draws in the screw thread of nut, the expander of setscrew inserts the expansion chamber and the expander that draw nut in the top and expands in the expansion chamber of nut is drawn on the top under the bloated pin effect in its end, finishes the pile extension between pile tube and pile tube.

Embodiment 4: with reference to accompanying drawing 9.On the basis of embodiment 1 and 2, prestressed high strength precast plate that constitutes by apical grafting stake button under the last spiral shell and the docking structure between precast plate, the end of two precast plates (comprising bridge prefabrication plate, precast floor slab etc.) that dock is respectively that several rise and draw nut mouth and corresponding with it top to draw the nut mouth, the screw section of setscrew is screwed in to rise and draws in the screw thread of nut, the expander of setscrew inserts the expansion chamber that draws nut in the top and expander and expands in the expansion chamber of nut is drawn on the top under expanding the pin effect in its end, finishes docking between precast plate and precast plate.

Embodiment 5: with reference to accompanying drawing 10.Make the docking calculation of prestressed high strength prefabricated component by apical grafting stake button under the last spiral shell, rise and draw nut and top to draw spiro cap to be enclosed within respectively on some the longitudinal reinforcements, heading is upset at the two ends of some longitudinal reinforcements and heading is stuck on the heading Ka Tai that draws nut that rises just and draw on the heading Ka Tai of nut on the top, rise and draw the nut end to be fixed on the inboard of prefabricated component die cavity one end plate by screw, the top draws the end of nut to adopt the top to draw screw to be fixed on another end plate of prefabricated component die cavity, the circumferential reinforcement annular is on longitudinal reinforcement, the prefabricated component cage of reinforcement is put into shaping mould, placing of concrete, matched moulds is haled the top and is drawn the end plate of screw end to the power that sets, force some synchronous reinforcing bars to extend to centrifugal casting or vibration foundry goods after the length that sets, promptly get high strength prefabricated component with roof construction under the last spiral shell.The equal in length of some longitudinal reinforcements; Circumferential reinforcement or transverse reinforcement weld or are bundled on the longitudinal reinforcement; Rise and draw nut and top to draw the quantity of nut equal, relative and on the end plate of die cavity, constitute cage of reinforcement; The screw section of setscrew is screwed in to rise and draws in the nut, and the expander of setscrew expands in the expansion chamber of nut is drawn on the top.

What need understand is: though the foregoing description is to the present invention's detailed explanation of contrasting; but these embodiment are just illustrative to the present invention; rather than limitation of the present invention, any innovation and creation that do not exceed in the connotation of the present invention all fall within the scope of protection of the present invention.

Claims (10)

1, apical grafting stake button under a kind of upward spiral shell, its feature draws nut (3), setscrew (4) and top to draw nut (5) to constitute by rising, rise and draw nut (3) to be screwed in the screw section of setscrew (4), during butt joint, the expander of setscrew (4) expands in expansion chamber in the nut (5) is drawn on the top.

2, apical grafting stake button under the upward spiral shell according to claim 1, it is characterized in that: the center at the bottom of the cap that draws nut (3) that rises has reinforced hole (7), and the periphery of reinforced hole (7) is reinforcing bar heading Ka Tai (8); The top draw nut (5) top for hale screw thread (9), the bottom is expansion chamber (10), the center of pushing up at the bottom of the cap draw nut (5) has reinforced hole (12), the periphery of reinforced hole is reinforcing bar heading Ka Tai (11).

3, apical grafting stake button under the upward spiral shell according to claim 2, it is characterized in that: the top draws the expansion chamber (10) in the nut (5) to have tapering, and it is big down little that cavity is; The top draws the screw thread (9) on nut (5) top for haling screw thread, rises and hales action of steel bars.

4, apical grafting stake button under the upward spiral shell according to claim 1, it is characterized in that: setscrew (4) is made of expand pin (6), expander (16) and screw (15), expander (16) and screw (15) are overall structure, the head of swollen pin (6) is inserted in the expander upper end centre pilot passage (13), vertically has 1 or 2 or many guiding wire casing (14) that expands on the wall of guide channel.

5, according to claim 1ly go up apical grafting stake button under the spiral shell, it is characterized in that: rise and draw screw thread in the nut (3) for haling the pile extension screw thread, play reinforcing bar, the pile extension effect of haling.

6, a kind of prestressed high strength prefabricated component that constitutes by apical grafting stake button under the last spiral shell, prefabricated component (17) is built-in with by some longitudinal reinforcements (18) and circumferential reinforcement or transverse reinforcement (19) formation prefabricated component cage of reinforcement, it is characterized in that: the heading (2) at the two ends of some longitudinal reinforcements (18) is connected to respectively to rise and draws nut (3) and top to draw on nut (5) the reinforcing bar heading Ka Tai (8,11) in the prefabricated component.

7, the prestressed high strength tubular that is made of apical grafting stake button under the last spiral shell according to claim 6 is characterized in that: the screw section of setscrew (4) is screwed in to rise and draws in the nut (3).

8, a kind of prestressed high strength prefabricated component that constitutes by apical grafting stake button under the last spiral shell and the docking structure between prefabricated component, it is characterized in that: the end of two prefabricated components that dock is respectively that several rise and draw nut mouth and corresponding with it top to draw the nut mouth, the screw section of setscrew is screwed in to rise and draws in the screw thread of nut, the expander of setscrew inserts the expansion chamber that draws nut in the top and expander and expands in the expansion chamber of nut is drawn on the top under expanding the pin effect in its end, finishes docking between prefabricated component and prefabricated component.

9, a kind of pile extension method of making the prestressed high strength prefabricated component by apical grafting stake button under the last spiral shell, it is characterized in that: rise and draw nut and top to draw spiro cap to be enclosed within respectively on some the longitudinal reinforcements, heading is upset at the two ends of some longitudinal reinforcements and heading is stuck on the heading Ka Tai that draws nut that rises just and draw on the heading Ka Tai of nut on the top, rise and draw the nut end to be fixed on the inboard of prefabricated component die cavity one end plate by screw, the top draws the end of nut to adopt the top to draw screw to be fixed on another end plate of prefabricated component die cavity, circumferential reinforcement or transverse reinforcement are on longitudinal reinforcement and constitute cage of reinforcement, cage of reinforcement is put into shaping mould, placing of concrete, matched moulds, haling the top draws the end plate of screw end to the power that sets, force some synchronous reinforcing bars to extend to centrifugal casting or vibration foundry goods after the length that sets, promptly get high strength prefabricated component with roof construction under the last spiral shell.

10, the pile extension method by apical grafting stake button making prestressed high strength tubular under the last spiral shell according to claim 9 is characterized in that: the equal in length of some longitudinal reinforcements; Circumferential reinforcement or transverse reinforcement weld or are bundled on the longitudinal reinforcement; Rise and draw nut and top to draw the quantity of nut equal, relative and on the end plate of die cavity, constitute cage of reinforcement; The screw section of setscrew is screwed in to rise and draws in the nut, and the expander of setscrew expands in the expansion chamber of nut is drawn on the top.

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