CN2407036Y

CN2407036Y - Reinforced concrete pile feeder

Info

Publication number: CN2407036Y
Application number: CN 00227309
Authority: CN
Inventors: 钟肇鸿
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-02-02
Filing date: 2000-02-02
Publication date: 2000-11-22
Anticipated expiration: 2010-02-02

Abstract

The utility model discloses a reinforced concrete precast pile feeder, which comprises a work head and an extension pipe of the work head, wherein, the work head and the extension of the work head are mutually connected by a thread; the inner wall of the work head is provided with an inner spline, and the front end of the work head is provided with a limiting flange; a press head and an extension pipe of the press head which are mutually connected are arranged in the work head and the extension pipe of the work head; the outer wall of the press head is provided with an outer spline which is clamped between the inner spline and the limiting flange, and the outer spline and the inner spline are mutually engaged. The utility model is matched with a precast pile with a quick connector to be used. The utility model is convenient to adjust the length of precast piles to make the height of the precast piles unform.

Description

The precast reinforced concrete piles Pile feeder

The utility model relates to a kind of Pile feeder that is used to bury underground precast reinforced concrete piles.

In civil engineering when piling in the past,, because of earth formation and building structure have nothing in common with each other, precast reinforced concrete piles length, size that building is adopted also have nothing in common with each other, so preformed pile is when being driven underground, and the pile body height of the surplus dew in ground is also inequality.Make the height unanimity of surplus dew pile body, can only the pile body of superelevation manually be excised.This working method causes the significant wastage of human and material resources, time, makes construction costs higher.

The purpose of this utility model provides a kind ofly can conveniently adjust precast reinforced concrete piles ground surplus dew pile body height, makes it reach consistent Pile feeder rapidly.

Principal character of the present utility model is: the working head of hollow, working head prolong pipe and are connected to each other by screw thread, the working head inwall has internal spline, front end that defining flange is arranged, in working head, working head prolongation pipe, there are interconnected pressure head, pressure head to prolong pipe, the sealing mat that is bonded on the pressure head is pressed on the defining flange of working head by pressure head, the pressure head outer wall has external splines, and external splines is stuck between internal spline and the defining flange and is engaged with internal spline.

In the use, pressure head in the utility model withstands preformed pile, the clamp clamps working head of pile press prolongs the pipe outer wall, the downward application of force, pressure reaches the pressure head external splines by the working head internal spline, and pressure head is stressed afterwards to begin piling, until finishing the piling operation, when the pile body height is exposed on adjustment ground, need on original preformed pile, to connect the connection stake that another section calculated length.At this moment, Pile feeder inner ram, pressure head can be prolonged pipe rotates to an angle, inside and outside spline is broken away from, can transfer to pressure head, pressure head to prolong pipe, send into the connection stake of band snap joint again, it is connected rapidly with the preformed pile of existing snap joint, transfers to working head then, whole pile follower work finishes.Above-mentioned snap joint has been applied for the applicant, application number is to have a detailed description in 00227092.7 the utility model patent.The effect of the sealing mat in the utility model is to prevent that earth from infiltrating in the working head.The utility model is simple in structure, flexibly connects between each parts, is convenient to change, keep in repair, and can make the preformed pile height unanimity of burying underground rapidly, can guarantee that again each bar preformed pile is coaxial up and down.

Fig. 1 is the structural representation of an embodiment of the utility model;

Fig. 2 is the cross section view after a kind of working head prolongation pipe is clamped by pile press among Fig. 1;

Fig. 3 is the structural representation of another embodiment of the utility model;

Fig. 4 is the structural representation of the 3rd embodiment of the utility model.

As shown in Figure 1, the working head 3 of hollow in the utility model, working head prolong pipe 4 and interconnect by screw thread, working head 3 inwalls have internal spline 31, front end that defining flange 32 is arranged, in working head 3, working head prolongation pipe 4, there are the pressure head 1, the pressure head that connect with screw thread or welding manner mutually to prolong and manage 5, the sealing mat 2 that is bonded on the pressure head 1 is pressed on the defining flange 32 of working head 3 by pressure head 1, pressure head 1 outer wall has external splines 11, and external splines 11 is stuck between internal spline 31 and the defining flange 32 and is engaged with internal spline 11.Because being contained in the arc of the pile press anchor clamps 6 on the pile press fuselage 8 matches with the preformed pile outer wall, and the working head of Pile feeder prolongs the diameter of pipe 4 outer walls greater than the preformed pile outer wall, may make pile press anchor clamps 6 can only clamp working head and prolong 2 points of managing on the outer wall, be difficult to the application of force.For this reason, as shown in Figure 2, prolong pipe outer wall setting and the corresponding protruding position 41 of pile press anchor clamps, the arc of itself and pile press anchor clamps 6 is matched, the phenomenon of anchor clamps slippage can not take place during the assurance piling at working head.Fig. 1, Fig. 4 have provided the form of two kinds of pressure heads respectively, pressure head 1 head has with hollow preformed pile 7 centre bores and cooperates boss 12 among Fig. 1, adopt the mode of centre bore location during piling, pressure head 1 head has the groove 14 that cooperates with preformed pile 7 outer walls among Fig. 4, adopts the mode of cylindrical location during piling.These two kinds of structures can guarantee to stablize, force feed preformed pile exactly, make preformed pile can not occur departing from bulged-in process, thus can break the building trade regulation less than 2 meters the pile follower degree of depth, satisfy user's various degree of depth requirements.In order to make in the piling process, pressure head, pressure head prolong the accurate location of pipe, and the utility model prolongs on the pipe 4 at working head, the positioning boss 42 that stretches out to the center is set, as shown in Figure 1.In order to reduce the total quality that pressure head thickness and pressure head in the utility model, pressure head prolong pipe, can adopt form of structure shown in Figure 3, be about to pressure head 1 afterbody and dwindle into installation base 13, the pressure head after will dwindling simultaneously prolongs pipe 5 by being threaded onto on the pressure head 1.

Claims

1, a kind of precast reinforced concrete piles Pile feeder, it is characterized in that: the working head of hollow (3), working head prolongs pipe (4) and is connected to each other by screw thread, working head (3) inwall has internal spline (31), front end has defining flange (32), in working head (3), working head prolongs in the pipe (4) interconnected pressure head (1), pressure head prolongs pipe (5), the sealing mat (2) that is bonded on the pressure head (1) is pressed on the defining flange (32) of working head (3) by pressure head (1), pressure head (1) outer wall has external splines (11), and external splines (11) is stuck between internal spline (31) and the defining flange (32) and is engaged with internal spline (11).

2, the Pile feeder of a kind of precast reinforced concrete piles according to claim 1 is characterized in that: the outer wall that working head prolongs pipe (4) has and the corresponding protruding positions of pile press anchor clamps (41), and this protruding position (41) matches with the arc of pile press anchor clamps (6).

3, the Pile feeder of a kind of precast reinforced concrete piles according to claim 1 and 2 is characterized in that: pressure head (1) head has the boss (12) that cooperates with the hollow preformed pile centre bore.

4, the Pile feeder of a kind of precast reinforced concrete piles according to claim 1 and 2 is characterized in that: pressure head (1) head has the groove (13) that cooperates with the preformed pile outer wall.

5, the Pile feeder of a kind of precast reinforced concrete piles according to claim 1 and 2 is characterized in that: prolong pipe (4) at working head and go up the positioning boss (42) that stretch out at oriented center.

6, the Pile feeder of a kind of precast reinforced concrete piles according to claim 3.It is characterized in that: pressure head (1) and pressure head prolong pipe (5) by screw thread or be welded to connect.