CN100445473C

CN100445473C - Expansion meshing body pile-connecting end plate and prefab

Info

Publication number: CN100445473C
Application number: CNB2005100698758A
Authority: CN
Inventors: 周兆弟
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-05-17
Filing date: 2005-05-17
Publication date: 2008-12-24
Anticipated expiration: 2025-05-17
Also published as: CN1676766A

Abstract

The present invention relates to a pipe pile connection buckle, a prefabricated component composed of prefabricated component joints, a connection structure of the prefabricated components and a method for manufacturing the prefabricated component, which belongs to the field of the manufacture of prefabricated component connection buckles and the prefabricated component. The pipe pile connection buckle comprises an end board; two or more tensioning screw nuts are circumferentially distributed on the end board; screw sections in expanding engaging screws are in screwed connection in the tensioning screw nuts; two or more supporting and tensioning screw nuts are circumferentially distributed on the end board; engaging tooth sleeves are arranged in expanding cavities in the supporting and tensioning screw nuts; during butt joint, under the action of expanding pins, expanding tooth sections in the expanding engaging screws expand and are engaged in the engaging tooth sleeves in the supporting and tensioning sleeves. The prefabricated component is composed of expanding engaging body pile splicing end boards; both ends of the prefabricated component are respectively provided with the tensioning screw nuts and the supporting and tensioning screw nuts of the expanding engaging body pile splicing end boards; set heads arranged at both ends of each of a plurality of longitudinal reinforced bars in the prefabricated component are respectively clamped on reinforced bar set head clamping platforms arranged in the tensioning screw nuts and the supporting and tensioning screw nuts.

Description

Expansion meshing-body pile extension end plate and prefabricated component

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 the syndeton between being connected between being connected between being connected between pile tube 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 and the preparation method of prefabricated component, the genus prefabricated component connects to be detained and prefabricated component manufacturing field.

Background technology:

Notice of authorization CN2495685Y, title " concrete tubular 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 that longitudinal reinforcement in the pipe pile reinforcing bar cage only passes end plate and draws nut and top to draw the nut clamping with rising respectively, and the fracture of fundamentally avoiding pile tube is with broken; The 2nd, the pile tube butt joint is simple, quick, reliable; The 3rd, 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 is 200410091063.9 at all application numbers of the applicant, on the basis that title " goes up apical grafting stake button and prefabricated component under the spiral shell ", adopts the expansion theory of engagement to force the expansion engaging screw moment between the pile tube that needs pile extension to form the engagement butt joint of expanding.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 expansion engaging screw 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, the expansion of expansion tooth section is engaged on that the top is drawn in the nut in the expansion chamber and forms expansion and combine with the pawl of shifter collar in its expansion chamber in the expansion engaging screw; 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 engagement needs of the expansion tooth section of expansion engaging screw, and can make expansion meshing-body in the expansion engaging screw after expansion firmly with expansion chamber in shifter collar form the hook drawknot and close.3, the design of expansion engaging screw is three of a feature of the present invention, its major function is: the one, and the expansion tooth section in the expansion engaging screw is drawn on the top of insertion by force of the pin that is subjected to expanding in the nut behind the shifter collar, can expansion instantaneous expansion distortion in expansion chamber in the nut is drawn on the top, and the expansion tooth section after the dilatancy can be firmly fixed in the shifter collar in the expansion chamber by hook lock; The 2nd, the screw section in the expansion engaging screw with rise draw nut to spin after, can moment draw nut to realize that plug-in type expands to mesh 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 expansion engaging screw expansion tooth section end be expansion tooth section be able to that instantaneous expansion struts basic, it is similar to, and taper-----point is gone up thick down, after inserting expansion tooth section, expansion tooth section can be strutted, produces in permanent deformation, the permanent locking shifter collar in the expansion chamber of nut is drawn on the top along its guiding wire casing moment of expanding.4, rise that to draw nut and top to draw nut be four of feature of the present invention with the design of end plate welding connection structure respectively, its major function is: the one, guarantee to rise draw nut and top draw nut distribute accurately, be convenient between pile tube and pile tube fast, accurately dock; The 2nd, can be effectively draw power that nut and top draw nut to be delivered to the end face of pile tube equably by its end plate with acting on to rise, avoid impact force to concentrate, easily cause the deficiency of pile tube breakage.

Technical scheme 1: expansion meshing-body pile extension end plate, it comprises end plate (19) and (20), 2 or a plurality of rising draw nut (3) to be distributed on the end plate (19), screw section in the expansion engaging screw (4) is screwed in to rise and draws in the nut (3), 2 or a plurality of top draw nut (5) circle distribution on end plate (20), shifter collar (21) is positioned at the top and draws the expansion chamber (10) of nut (5), to on time, the expansion tooth section of expansion engaging screw (4) expands to be engaged under the effect of the pin (6) that expands and pushes up in the shifter collar that draws in the nut (5).

Technical scheme 2: the prefabricated component that constitutes by expansion meshing-body pile extension end plate, the prefabricated component two ends are equipped with rising of end plate respectively and draw nut (3) and top to draw nut (5), the heading (2) at some longitudinal reinforcements (18) two ends is connected to respectively to rise and draws nut (3) and top to draw reinforcing bar heading Ka Tai (8 in the nut (5) in the prefabricated component (17), 11) on, expansion engaging screw (4) is used for docking between prefabricated component and prefabricated component.

Technical scheme 3: prefabricated component that constitutes by expansion meshing-body pile extension end plate and the docking structure between prefabricated component, the end of two prefabricated components that dock is respectively that several that have an end plate rise and draw nut mouth and top to draw the nut mouth, the screw section of expansion engaging screw is screwed in to rise and draws in the screw thread of nut, the expansion tooth section of expansion engaging screw insert the top draw in the shifter collar in the nut and under the effect of the pin that expands with shifter collar in the tooth engagement, finish docking between prefabricated component and prefabricated component.

Technical scheme 4: the preparation method of making prefabricated component by expansion meshing-body pile extension end plate, 2 or a plurality of rise to draw nut and have 2 of end plate or a plurality of top draw nut to lay respectively on the end plate, longitudinal reinforcement heading in the reinforcing cage is stuck on the heading Ka Tai that draws nut that rises and the top draws the heading Ka Tai of nut to go up and put it in the shaping mould, placing of concrete, matched moulds, haling rising of prefabricated component die cavity one end simultaneously draws expansion nut to the power that sets, after forcing some reinforcing bars to extend to the length that sets synchronously, centrifugal casting or vibration foundry goods, get promptly that having rises and draw the prefabricated component of expansion nut structure, expansion engaging screw and be used for docking between prefabricated component and prefabricated component.

The present invention compares with background technology, the one, rise draw nut and top draw nut respectively with the design of end plate welding connection structure, not only guaranteeing rises draws nut and top to draw nut to distribute accurately, be convenient between pile tube and pile tube fast, accurately butt joint, and can draw nut and top to draw the power of nut to be delivered to the end face of pile tube equably by its end plate with acting on to rise effectively, avoided impact force to concentrate the deficiency of the pile tube breakage that is caused, the safety factor and the safety of piling quality have been guaranteed, fundamentally guaranteed building, particularly the reliability of high-rise building foundation quality; The 2nd, avoided the spillage phenomenon, guaranteed pile tube globality and intensity, eliminated the pile breaking phenomenon that background technology exists; The 3rd, 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, the uniformity and the globality of pipe pile reinforcing bar skeleton quality have been guaranteed, fundamentally solved piling that background technology exists when stressed, its pile tube fragmentation, fracture defective; The 4th, expansion tooth Duan Yuding draws in the nut in the expansion chamber pawl of shifter collar to form expansion hook drawknot to close, guaranteed the reliable connection between pile tube and pile tube in the expansion engaging screw; The 6th, 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 5th, reduced the cost of production of pile tube widely, can produce unexpected economic benefit and social benefit every year for saving RMB more than 3,000,000,000 yuan; The 6th, 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 the structural representation of expansion meshing-body pile extension end plate.

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

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

Fig. 4 expansion tooth section end construction schematic diagram in the engaging screw that expands.

Fig. 5 is an expansion engaging screw master TV structure schematic diagram.

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

Fig. 7 is the structural representation of pile tube.

Fig. 8 is the pile tube of expansion meshing-body pile extension end plate formation and the pile extension structural representation between pile tube or bridge pier and bridge pier or electric pole and electric pole.

Fig. 9 is the precast plate of expansion meshing-body pile extension end plate formation and the pile extension structural representation between precast plate.

Figure 10 is the partial structurtes schematic diagram of pile tube moulding.

The specific embodiment:

Embodiment 1: with reference to accompanying drawing 1～6.Expansion meshing-body pile extension end plate, it comprises

end plate

19 and 20,2 or a plurality of rising draw nut 3 circle distribution on end plate 19, screw section in the expansion engaging screw 4 is screwed in to rise and draws in the

nut

3,2 or a plurality of top draw nut 5 circle distribution on end plate 20, and during butt joint, shifter collar 21 is positioned at the expansion chamber 10 that nut 5 is drawn on the top, the expansion tooth section of expansion engaging screw 4 expands to be engaged on and pushes up in the shifter collar that draws in the nut 5, sees accompanying drawing 1.Rise and draw nut 3 to adopt metal (as steel, stainless steel, alloy steel etc.) or nonmetals (as plastics, 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 plastics, synthetic plastic, pottery etc.) by existing casting or injection moulding or ceramic sintering or machining technique making; The top draw nut 5 tops for hale screw thread 9, the bottom is an expansion chamber 10, shifter collar 21 is positioned at expansion chamber, 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, the top draws the expansion chamber 10 interior shifter collars 21 in the nut 5 to be the pawl structure, it is big down little that expansion chamber is, and the top draws the screw thread 9 on nut 5 tops for haling screw thread, rises and hales action of steel bars.Insert the top for the ease of 16 moments of expansion tooth section in the expansion engaging screw 4 and draw in the expansion chamber 10 in the nut in the shifter collar 21, draw the entrance point of haling screw thread of nut that one circle enlarging is arranged on the top, see accompanying drawing 3.Expansion engaging screw 4 and shifter collar 21 adopt metal (as steel, stainless steel, alloy steel etc.) or nonmetals (as plastics, synthetic plastic etc.) by existing casting or injection moulding or machining technique making, expansion engaging screw 4 is by the pin 6 that expands, expansion tooth section 16 and screw 15 constitute, expansion tooth section 16 and screw 15 are overall structure, the wall of expansion engaging screw is suitable toothing and draws the pawl formation expansion of expansion chamber 10 chamber walls in the nut 5 to combine with the top, the head of swollen pin 6 is inserted in the expansion tooth section 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 expansion tooth section 16 moments insertion in the expansion engaging screw 4, the arm of angle that connects of the end of the expansion tooth section of expansion engaging screw 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 prefabricated component that constitutes by expansion meshing-body pile extension end plate, the prefabricated component two ends are equipped with rising of end plate respectively and draw nut 3 and top to draw nut 5, and the heading 2 at some longitudinal reinforcement 18 two ends is connected to respectively to rise and draws nut 3 and push up on the reinforcing bar heading card platform 8 and 11 that draws in the nut 5 in the prefabricated component 17.The screw section of expansion engaging screw 4 is screwed in to rise draws that (this expansion engaging screw 4 is when pile tube docks with pile tube, and the screw section of its expansion engaging screw 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 expansion engaging screw 4 drew nut 3 to separate with rising, separately keeping).The end plate back side is welded with the tooth (as the varying length steel bar end) of protrusion, and purpose is in order firmly to be connected with concrete.

Embodiment 3: with reference to accompanying drawing 8.On the basis of embodiment 1 and 2, prefabricated component that constitutes by expansion meshing-body pile extension end plate and the docking structure between prefabricated component, the end of two prefabricated components that dock is respectively that several that have an end plate rise and draw nut mouth and top to draw the nut mouth, the screw section of expansion engaging screw is screwed in to rise and draws in the screw thread of nut, the expansion tooth section of expansion engaging screw insert the top draw in the shifter collar in the nut and under the effect of the pin that expands with shifter collar in the tooth engagement, finish docking between prefabricated component and prefabricated component.

Embodiment 4: with reference to accompanying drawing 9.On the basis of embodiment 1 and 2, precast plate that constitutes by expansion meshing-body pile extension end plate 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 that have an end plate rise and draw nut mouth and top to draw the nut mouth, the screw section of expansion engaging screw is screwed in to rise and draws in the screw thread of nut, the expansion tooth section of expansion engaging screw insert the top draw in the shifter collar in the nut and under the effect of the pin that expands with shifter collar in the tooth engagement, finish docking between prefabricated component and prefabricated component.

Embodiment 5: with reference to accompanying drawing 10.Make the preparation method of prefabricated component by expansion meshing-body pile extension end plate, make the preparation method of prefabricated component by expansion meshing-body pile extension end plate, it is characterized in that: 2 or a plurality of rise to draw nut and have 2 of end plate or a plurality of top draw nut to lay respectively on the end plate, longitudinal reinforcement heading in the reinforcing cage is stuck on the heading Ka Tai that draws nut that rises and the top draws the heading Ka Tai of nut to go up and put it in the shaping mould, placing of concrete, matched moulds, haling rising of prefabricated component die cavity one end simultaneously draws expansion nut to the power that sets, after forcing some reinforcing bars to extend to the length that sets synchronously, centrifugal casting or vibration foundry goods, get promptly that having rises and draw the prefabricated component of expansion nut structure, expansion engaging screw and be used for docking between prefabricated component and prefabricated component.

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

1, a kind of prefabricated component that constitutes by expansion meshing-body pile extension button, prefabricated component (17) two ends are built-in with respectively to rise draws nut (3) and top to draw nut (5), the heading (2) at some longitudinal reinforcements (18) two ends is connected to respectively to rise and draws nut (3) and top to draw reinforcing bar heading Ka Tai (8 in the nut (5) in the prefabricated component (17), 11) on, it is characterized in that: 2 or a plurality of rising draw nut (3) circle distribution on end plate (19), screw section in the expansion engaging screw (4) is screwed in to rise and draws in the nut (3), 2 or a plurality of top draw nut (5) circle distribution on end plate (20), shifter collar (21) is positioned at the top and draws the expansion chamber (10) of nut (5), tooth in the shifter collar (21) in the expansion chamber (10) is the pawl structure, expansion chamber (10) is big down little, during butt joint, the expansion tooth section of expansion engaging screw (4) expands to be engaged on to push up in the shifter collar that draws in the nut (5) and with the top under the effect of the pin (6) that expands and draws the engagement of the pawl in the shifter collar (21) in the nut (5).

2, the prefabricated component that is made of expansion meshing-body pile extension button according to claim 1 is characterized in that: the top draws the screw thread (9) on nut (5) top for haling screw thread.

3, the prefabricated component that constitutes by expansion meshing-body pile extension button according to claim 1, it is characterized in that: expansion engaging screw (4) is made of expand pin (6), expansion meshing-body (16) and screw (15), and expansion meshing-body (16) and screw (15) are overall structure.