CN2376500Y

CN2376500Y - Apparatus for holding concrete prefabricated pile

Info

Publication number: CN2376500Y
Application number: CN 99227631
Authority: CN
Inventors: 梁毅
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-06-18
Filing date: 1999-06-18
Publication date: 2000-05-03
Anticipated expiration: 2009-06-18

Abstract

The utility model relates to an apparatus for clamping concrete prefabricated piles, which is characterized in that the utility model comprises at least one layer of clamping unit groups, wherein each layer of clamping unit groups at least has four clamping units; each clamping unit comprises a pile clamping board (4), a pile clamping seat board (3), support seats (1) and a piston (2), and the support seats (1) are mutually hinged by a pivot shaft (5). The at least four clamping units can automatically adapt the external shape of the prefabricated pile according to the composition of the prefabricated pile in order to achieve the maximum contact between the contact faces of the clamping units and the outer surface of the prefabricated pile. The casing effect of a pipe pile can be fully exerted, and the clamping loss rate of the pipe pile is decreased.

Description

Embrace the device of folder concrete precast pile

The preformed pile that the utility model relates on the pile press in a kind of foundation engineering is embraced clamp device.

In the prior art, preformed pile on the static pile press is embraced clamp device and had following deficiency: the projection of kiss face on the concrete precast pile cylinder of folder stake plate is circular, therefore the cylinder contact area of folder stake plate and preformed pile pipe is little, and its kiss face pressure is big, easily makes the preformed pile pipe be pressed from both sides damage.Folder stake plate is arranged in the fixing shaped as frame grip slipper, folder stake plate is held on the preformed pile after by the piston roof pressure, because the cylindrical pile tube of making can irregular shape occur at external surface owing to make error, make that the appearance cross section of stake is not circular, and existing clamping device can not adapt to the out-of-roundness of this preformed pile, therefore the kiss face of folder stake plate can not coincide well with the external surface of pile tube section, has reduced the shell effect of pile tube, makes that the percentage of damage of clamping stake pipe is higher.

The purpose of this utility model is to provide a kind of device of embracing the folder concrete precast pile that can adapt to the irregular external surface shape of preformed pile automatically, and the kiss face of feasible folder stake plate and the external surface contact area of preformed pile are bigger.

The technical solution of the utility model is: the device of a kind of armful of folder concrete precast pile, it comprises one deck grip unit group at least, described every layer of grip unit group has four grip unit at least, each grip unit comprises that front end has the folder stake plate with the contacted kiss face of the external surface of preformed pile, the folder stake seat board that connects as one with described folder stake plate, the grip slipper that has guide slide is used to promote the piston that described folder stake seat board slides with respect to described grip slipper in described guide slide, a described folder stake seat board is arranged in the described guide slide and both are and are slidingly connected, pivot by vertical direction between the adjacent grip slipper of described adjacent grip unit is hinged, and makes the same layer grip unit that is hinged by pivot be able to preformed pile formed and fills the span of a man's arms.

The utility model compared with prior art has following advantage:

Owing to be connected by pivot between at least four grip unit of one deck, therefore can adapt to its profile automatically according to the formation of preformed pile between these at least four grip unit, so that its kiss face reaches maximum contacting with the external surface of preformed pile, can give full play to its shell effect for pile tube, reduce the folder loss rate of pile tube.

The utility model will be further described below in conjunction with drawings and Examples:

Accompanying drawing 1 is the vertical view of a grip unit of the present utility model (partly cuing open figure);

Vertical view (half sectional view) when accompanying drawing 2 is filled the span of a man's arms with preformed pile mutually for four grip unit of the present utility model;

Accompanying drawing 3 is the front view (having only one deck grip unit group) of a kind of embodiment of accompanying drawing 2;

Accompanying drawing 4 is the front view (two-layer grip unit group is arranged) of the another kind of embodiment of accompanying drawing 2; Wherein:

[1], grip slipper; [2], piston; [3], folder stake seat board; [4], folder stake plate; [5], pivot; [6], connecting bolt; [7], preformed pile; [8], piston guide cover; [9], oil cylinder cylinder sleeve; [10], kiss face; [11], guide slide.

Embodiment: referring to accompanying drawing, the device of a kind of armful of folder concrete precast pile, it comprises one deck grip unit group at least, and general described grip unit group is one to four layer, and accompanying drawing 3 and accompanying drawing 4 have shown one deck and two-layer grip unit group respectively.Described every layer of grip unit group has four grip unit at least, what the utility model adopted is that every layer of grip unit group has four to eight grip unit, described as shown in Figure 2 every layer of grip unit group is four grip unit, and each grip unit is the four directions and is symmetrically distributed.Each grip unit comprises that front end has and the folder stake plate [4] of the contacted kiss face of external surface [10] of preformed pile [7], with a described folder folder stake seat board [3] that plate [4] connects as one, the grip slipper [1] that has guide slide [11], be used to promote the piston [2] that described folder stake seat board [3] slides with respect to described grip slipper [1] in described guide slide [11], a described folder stake seat board [3] is arranged in the described guide slide [11] and both are and are slidingly connected, pivot [5] by vertical direction between the adjacent grip slipper [1] of described adjacent grip unit is hinged, and makes the same layer grip unit that is hinged by pivot [5] be able to preformed pile [7] formation and fills the span of a man's arms.The projection of kiss face [10] on described preformed pile [7] of folder stake seat board [3] front end on described each grip unit is rectangle, kiss face [10] on described each grip unit is a constant with the length of the intersecting lens of horizontal section, makes described each the kiss face [10] of filling the span of a man's arms and the contact surface of the external surface of preformed pile [7] keep maximum.Referring to accompanying drawing 4, be connected by a plurality of pivots [5] between the grip unit group of described adjacent layer.The outside of described piston [2] is covered with the oil cylinder cylinder sleeve [9] that is fixedly connected with described grip slipper [1].

Claims

1, the device of a kind of armful of folder concrete precast pile, it is characterized in that: it comprises one deck grip unit group at least, described every layer of grip unit group has four grip unit at least, each grip unit comprises that front end has and the folder stake plate [4] of the contacted kiss face of external surface [10] of preformed pile [7], with a described folder folder stake seat board [3] that plate [4] connects as one, the grip slipper [1] that has guide slide [11], be used to promote the piston [2] that described folder stake seat board [3] slides with respect to described grip slipper [1] in described guide slide [11], a described folder stake seat board [3] is arranged in the described guide slide [11] and both are and are slidingly connected, pivot [5] by vertical direction between the adjacent grip slipper [1] of described adjacent grip unit is hinged, and makes the same layer grip unit that is hinged by pivot [5] be able to preformed pile [7] formation and fills the span of a man's arms.

2, the device of according to claim 1 armful of folder concrete precast pile, it is characterized in that: the projection of kiss face [10] on described preformed pile [7] of folder stake seat board [3] front end on described each grip unit is rectangle.

3, the device of according to claim 2 armful of folder concrete precast pile is characterized in that: the kiss face [10] on described each grip unit is a constant with the length of the intersecting lens of horizontal section.

4, the device of according to claim 1 armful of folder concrete precast pile, it is characterized in that: described every layer of grip unit group is four grip unit, each grip unit is the four directions and is symmetrically distributed.

5, the device of according to claim 1 armful of folder concrete precast pile is characterized in that: be connected by a plurality of pivots [5] between the grip unit group of described adjacent layer.

6, the device of according to claim 1 armful of folder concrete precast pile, it is characterized in that: the outside of described piston [2] is covered with the oil cylinder cylinder sleeve [9] that is fixedly connected with described grip slipper [1].

7, the device of according to claim 1 armful of folder concrete precast pile, it is characterized in that: described every layer of grip unit group has four to eight grip unit.

8, the device of according to claim 1 armful of folder concrete precast pile, it is characterized in that: described grip unit group is one to four layer.