CN202466579U

CN202466579U - One-step hole former for quadrangular movable plate pile toes

Info

Publication number: CN202466579U
Application number: CN2011205391588U
Authority: CN
Inventors: 吴明华; 吴燮东
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-12-14
Filing date: 2011-12-14
Publication date: 2012-10-03
Anticipated expiration: 2021-12-14

Abstract

The utility model relates to a pressed-in one-step hole former for quadrangular movable plate pile toes, and the pressed-in one-step hole former is used for construction of a soft ground concrete tube. Front, rear, left and right gaps are arranged at the lower end of the existing one-step hole former, each gap is 50cm high, the upper side and lower edge of each gap are both 12cm, a bottom surface extending outwards by 25cm is arranged at the outer side of each gap as a movable opening surface, and a steel plate square body angle of a hinge connecting bottom surface movable plate is arranged at the outer side edge of the bottom surface; and a movable plate pile toe is formed by downward extending an inner steel pipe tube by 50cm from the pile toe position at the bottom of the existing one-step hole former, a round movable plate pile toe consisting of 16 steel movable plates is connected at the bottom of an outer steel pipe tube by a hinge made of a round steel bar with the diameter of 18mm, the lower part of the steel movable plate is opened outward under the concrete pressure of the tube cavity of the hole former. The pressed-in one-step hole former has the characteristics of improving the bearing capacity, saving the manufacturing cost, and being convenient to construct.

Description

Quadrangle trap stake point one-step pore-creating device

Technical field:

The utility model relates to a kind of forced tetragonal trap stake point one-step pore-creating device that is used for the subgrade concrete barrel construction.

Background technology:

Existing forced one-step pore-creating device is a cylinder; The concrete pile lifting surface area is restricted, and for guaranteeing to decide whole step, certainly will increase a number; Thereby strengthened construction cost; If the outer steel pipe tube lower end of perforating device week side is established four square protrusion angles of branch layouts such as circumference, not only can increase substantially the vertical bearing capacity of pile foundation, and can save the construction costs about 30%.In addition, the stake point in one-step pore-creating device bottom is adjusted into the steel trap stake point of opening from inside to outside by existing rubber stake point, both can avoid the consumption of rubber stake point, again can convenient construction.

Summary of the invention:

The purpose of the utility model is for the deficiency that overcomes existing one-step pore-creating device existence tetragonal trap stake point one-step pore-creating device to be provided.

The technical scheme that the utility model adopted:

Quadrangle trap stake point one-step pore-creating device; Four breach are all around established in outer steel pipe tube lower end at existing one-step pore-creating device; The high 50cm of breach, attend bottom and be 12cm, and bottom surface do activity unlatching face, the bottom surface outer side edges of establishing overhanging 25cm in the breach outside are established the steel plate square body angle that hinge connects the bottom surface portable plate; Trap stake point in the sharp position of stake of existing one-step pore-creating device bottom with interior steel pipe tube to extending below 50cm; And the steel pipe tube bottom is constituted toroidal trap stake point by the hinge connection that the 18mm round bar is made by 16 steel traps through a diameter outside; Under the concrete pressure of perforating device tube chamber, outwards open steel trap bottom.

The utlity model has following characteristics: bearing capacity improves, practices thrift cost, is convenient to construction.

Description of drawings:

Fig. 1 is tetragonal trap stake point one-step pore-creating device vertical cross-section sketch map, its description of symbols: interior steel pipe tube 1, outer steel pipe tube 2, tapering pipe 3; Vibrator 4 is crossed hopper 5, flange socket 6, casting steam vent 7; Square body angle 8, extension 9, steel trap 10, " → " opens direction for trap.

Fig. 2 is tetragonal trap stake point one-step pore-creating device four bight transverse sectional view, its description of symbols: interior steel pipe tube 1, outer steel pipe tube 2, square body angle 8.

Fig. 3 is a trap stake point plane of structure schematic cross-section, its description of symbols: interior steel pipe tube 1, outer steel pipe tube 2, steel trap 10, hinge 12.

Fig. 4 is existing rubber stake point one-step pore-creating device vertical cross-section sketch map, its description of symbols: interior steel pipe tube 1, and outer steel pipe tube 2, tapering pipe 3, vibrator 4 is crossed hopper 5, flange socket 6, casting steam vent 7, rubber stake point 13.

The specific embodiment:

Below in conjunction with accompanying drawing the utility model is described further:

Quadrangle trap stake point one-step pore-creating device; Four breach are all around established in outer steel pipe tube 2 lower ends at existing one-step pore-creating device; The high 50cm of breach, attend bottom and be 12cm, and bottom surface do activity unlatching face, the bottom surface outer side edges of establishing overhanging 25cm in the breach outside are established the steel plate square body angle 8 that hinge connects the bottom surface portable plate; Trap stake point in the sharp position of stake of existing one-step pore-creating device bottom with interior steel pipe tube 1 to extending below 50cm; And steel pipe tube 2 bottoms are constituted toroidal trap stake point by hinge 12 connections that the 18mm round bar is made by 16 steel traps 10 through a diameter outside; Under the concrete pressure of perforating device tube chamber, outwards open steel trap 10 bottoms.

Claims

1. tetragonal trap stake point one-step pore-creating device; It is characterized in that: four breach are all around established in the outer steel pipe tube lower end at existing one-step pore-creating device; The high 50cm of breach, attend bottom and be 12cm, and bottom surface do activity unlatching face, the bottom surface outer side edges of establishing overhanging 25cm in the breach outside are established the steel plate square body angle that hinge connects the bottom surface portable plate; Trap stake point in the sharp position of stake of existing one-step pore-creating device bottom with interior steel pipe tube to extending below 50cm; And the steel pipe tube bottom is constituted toroidal trap stake point by the hinge connection that the 18mm round bar is made by 16 steel traps through a diameter outside; Under the concrete pressure of perforating device tube chamber, outwards open steel trap bottom.