CN221663651U - Steel pile casing device for preventing steel reinforcement cage from floating upwards - Google Patents

Abstract

The utility model discloses a steel pile casing device for preventing a reinforcement cage from floating upwards, which comprises a steel pile casing body, a steel bar circular ring, positioning angle steel and a plurality of fixed combinations; the steel pile casing body and the steel bar circular ring are coaxially arranged, and the steel bar circular ring is sleeved on the steel pile casing body; one end of the positioning angle steel is fixedly connected with the outer wall of the steel casing body, the other end of the angle steel is fixedly connected with the inner wall of the steel bar circular ring, and the steel bar circular ring is fixed on the outer wall of the steel casing body through the positioning angle steel; the fixed combination all includes a national standard D type shackle, a turnbuckle and a hollow round tube, the O type end of turnbuckle articulates on the reinforcing bar ring through the D type shackle. The steel pile casing device is pressed down to the longitudinal ribs of the steel reinforcement cage by the hollow round pipe so as to prevent the steel reinforcement cage from floating up when pile body concrete is poured. The whole structure is simple, the operation is simple, the whole cost is very low, and the device is very suitable for being used on the same type of construction sites.

Description

A steel casing device for preventing steel cage from floating up

Technical Field

The utility model relates to the technical field of pile foundation construction equipment, in particular to a steel casing device for preventing a steel cage from floating up.

Background Art

Before drilling a mechanical bored pile, it is generally necessary to arrange a steel casing at the hole opening. The steel casing is usually made of 5mm or even 1cm thick steel plate, which is removed and reused immediately after the pile body concrete is poured. After the bored pile is drilled, the steel cage can be lowered and then the pile body concrete can be poured. For piles with non-through-length reinforcement, when the concrete slump is too small and the pouring speed is too fast, the steel cage is easy to float. The floating of the steel cage will seriously affect the quality of the pile body.

Utility Model Content

The utility model provides a steel casing device for preventing a steel cage from floating up. The steel casing device is improved on the steel casing and utilizes the weight of the steel casing itself to prevent the steel cage from floating up, so as to solve the problems in the background technology.

The technical solution of the utility model is as follows: a steel casing device for preventing a steel cage from floating, comprising a steel casing body, a steel bar ring, a positioning angle steel and a plurality of fixed combinations; the steel casing body is coaxially arranged with the steel bar ring, and the steel bar ring is sleeved on the steel casing body; one end of the positioning angle steel is fixedly connected to the outer wall of the steel casing body, and the other end of the positioning angle steel is fixedly connected to the inner wall of the steel bar ring, and the steel bar ring is fixed to the outer wall of the steel casing body through the positioning angle steel; any one of the fixed combinations comprises a national standard D-type shackle, a basket screw and a hollow circular tube, and the O-type end of the basket screw is hinged to the steel bar ring through the D-type shackle.

Further: the hollow circular tube is any one of a cast iron tube, a stainless steel tube or a scaffolding steel tube.

Furthermore, the number of the positioning angle steels is four, and the four positioning angle steels are evenly distributed along the circumference of the steel bar ring, so that the steel bar ring is divided into four fixed sections along the circumference of the steel bar ring by using the four positioning angle steels.

Further: each of the fixed sections is provided with a fixed assembly.

Beneficial effects of this program:

This solution provides a simple-structured steel casing device, which includes a steel bar ring fixedly installed on the steel casing body, and a turnbuckle hinged on the steel bar ring through a D-type shackle. The hollow circular tube is fixed by the C-shaped end of the turnbuckle, and the hollow circular tube is sleeved on the longitudinal reinforcement of the steel cage and abutted against the top row of reinforcing ribs of the steel cage. The overall length of the turnbuckle is adjusted to tighten or loosen the hollow circular tube: the overall length of the turnbuckle is loosened when the turnbuckle is lengthened; the overall shortening of the turnbuckle is to press the hollow circular tube downward. The hollow circular tube is pressed downward onto the longitudinal reinforcement of the steel cage to prevent the steel cage from floating when the pile body concrete is poured. The overall structure is simple and the operation is relatively simple, which is very suitable for on-site construction personnel operation training, and the overall cost is very low.

Since a single longitudinal reinforcement is compressed vertically, even if multiple fixed combinations are installed, it will not hinder or interfere with the conduit during the pouring of pile concrete, which is conducive to construction and very suitable for use in similar construction sites.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic diagram of the overall installation structure of the steel casing device of the utility model;

FIG2 is a schematic diagram of the installation structure of the fixed assembly in the utility model;

FIG. 3 is a schematic diagram of the installation structure of the steel bar ring in the utility model.

DETAILED DESCRIPTION

The utility model is further described below in conjunction with the accompanying drawings and embodiments:

As shown in Fig. 1, Fig. 2 and Fig. 3, the utility model discloses a steel casing device for preventing a steel cage from floating, comprising a steel casing body 1, a steel bar ring 7 is arranged outside the steel casing body 1, and the steel bar ring 7 and the steel casing body 1 are arranged coaxially. The inner wall of the steel bar ring 7 and the outer wall of the steel casing body 1 are welded and connected by a positioning angle steel 6. As shown in Fig. 3, the two ends of the positioning angle steel 6 are respectively welded and connected to the inner wall of the steel bar ring 7 and the outer wall of the steel casing body 1, and the positioning angle steel 6 is used to fix the steel bar ring 7 on the steel casing body 1.

In this embodiment, four positioning angle steels 6 are welded on the outer wall of a single steel casing body 1, and the four positioning angle steels 6 are evenly distributed along the circumference of the steel bar ring 7, so as to divide the steel bar ring 7 into four fixed sections 71 along the circumference of the steel bar ring 7. A fixed combination is provided on each fixed section 71 of the steel bar ring 7. The number of fixed combinations is selected and set according to the number of longitudinal bars 22 of the steel cage 2. For rotary piles with a depth of more than 10 meters, it is not necessary to set a fixed combination for each longitudinal bar 22 of the steel cage 2. This is reasonably adjusted on site according to construction requirements.

For the design of the fixed combination, each fixed combination includes a national standard D-type shackle 3, a turnbuckle 4 and a hollow circular tube 5. The hollow circular tube 5 can be a cast iron pipe, a stainless steel pipe or cut from a scaffolding steel pipe. The length of the hollow circular tube 5 is determined according to the distance between the top row of reinforcing rib steel bars 21 of the steel cage 2 and the C-shaped end of the turnbuckle 4. As shown in FIG2 , the O-shaped end 42 of the turnbuckle 4 is hinged to the steel ring 7 through the D-type shackle 3, and the C-shaped end 41 of the turnbuckle 4 is turned downward and inserted into the upper end of the hollow circular tube 5. The lower end of the hollow circular tube 5 is downwardly sleeved onto a single longitudinal reinforcement 22 of the steel cage 2, and the lower end of the hollow circular tube 5 is abutted against the top row of reinforcing rib steel bars 21 of the steel cage 2. It should be noted that the top row of reinforcing rib steel bars 22 are generally welded and fixed in the steel cage, and they are welded and fixed to each longitudinal reinforcement 22, in this case to the topmost circle.

When the steel cage 2 needs to be fixed, after the above installation, the middle part of the turnbuckle 4 is screwed to shorten the length of the entire turnbuckle 4. The hollow circular tube 5 is pressed downward under the pulling force of the turnbuckle 4 to fix the steel cage 2 and prevent the steel cage 2 from floating up when the pile body concrete is poured. After the pile body concrete is poured, the steel cage 2 will no longer float up due to the pressure of the pile body concrete. The turnbuckle 4 can be loosened to extend the turnbuckle 4, so that the C-shaped end 41 of the turnbuckle 4 is separated from the hollow circular tube 5, and then the hollow circular tube 5 can be pulled out from the pile body concrete. The whole operation process is very simple.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims (4)

1. A prevent steel pile casing device of steel reinforcement cage come-up, its characterized in that: comprises a steel pile casing body (1), a steel bar circular ring (7), positioning angle steel (6) and a plurality of fixed combinations; the steel pile casing body (1) and the steel bar circular ring (7) are coaxially arranged, and the steel bar circular ring (7) is sleeved outside the steel pile casing body (1); one end of the positioning angle steel (6) is fixedly connected with the outer wall of the steel casing body (1), the other end of the positioning angle steel (6) is fixedly connected with the inner wall of the steel bar circular ring (7), and the steel bar circular ring (7) is fixed on the outer wall of the steel casing body (1) through the positioning angle steel (6); any one fixed combination all includes a national standard D type shackle (3), a turnbuckle (4) and a hollow round tube (5), O type end (42) of turnbuckle (4) articulates on reinforcing bar ring (7) through D type shackle (3).

2. A steel casing device for preventing a steel reinforcement cage from floating up according to claim 1, wherein: the hollow round tube is any one of a cast iron tube, a stainless steel tube or a scaffold steel tube.

3. A steel casing device for preventing a steel reinforcement cage from floating up according to claim 1, wherein: the number of the positioning angle steels (6) is four, the four positioning angle steels (6) are uniformly distributed along the circumferential direction of the steel bar circular ring (7), and the steel bar circular ring (7) is divided into four fixing sections (71) by the four positioning angle steels (6) along the circumferential direction of the steel bar circular ring (7).

4. A steel casing device for preventing a steel reinforcement cage from floating up according to claim 3, wherein: each fixing section (71) is provided with a fixing combination.