CN209780047U

CN209780047U - Split heads of cast-in-place board roughness of control and protective layer thickness

Info

Publication number: CN209780047U
Application number: CN201821589344.0U
Authority: CN
Inventors: 李洪富; 孟凯; 张�雄; 石俊; 朱江; 张建永; 张文成; 唐梓晟; 杨绍礼; 李红林
Original assignee: Yunnan Construction Investment Third Construction Co Ltd
Current assignee: Yunnan Construction Investment Third Construction Co Ltd
Priority date: 2018-09-27
Filing date: 2018-09-27
Publication date: 2019-12-13
Anticipated expiration: 2028-09-27

Abstract

The utility model provides a split heads of cast-in-place wooden flatness of control and protective layer thickness, this split heads include high positioning element, split heads muscle and a plurality of support frame, and wherein the support frame is the style of calligraphy of falling V, and the split heads muscle welding welds high positioning element at the top of support frame on the split heads muscle. The utility model discloses a split heads welds high positioning component on the split heads muscle, highly controls floor protective layer thickness and floor surface's roughness through high positioning component, can the accurate control floor thickness through split heads overall structure. The utility model discloses a split heads simple manufacture, construction convenience to it is stable firm, can effectively restrain thickness behind the floor, improve the thickness of panel roughness, assurance protective layer.

Description

Split heads of cast-in-place board roughness of control and protective layer thickness

Technical Field

The utility model belongs to a building engineering technical field relates to a split heads, specifically is a special split heads of cast-in-place slab flatness of control and protective layer thickness at cast-in-place floor concrete placement in-process.

Background

At present, the steel bar split heads are widely applied to construction engineering, the structure of the steel bar split heads is generally formed by connecting a horizontal bar with a plurality of support frames shaped like a Chinese character ji, the steel bar split heads are mainly used for supporting and fixing upper steel bars of a structural slab or a foundation slab, a preset distance is kept between the upper steel bars and the lower steel bars, and the steel bar split heads play an important role in controlling the effective height of the cross section of the slab, the thickness of a steel bar protection layer and ensuring the stress performance of the slab structure. However, the split heads structure disclosed in the prior art can not accurately control the thickness of the protective layer of the cast-in-place structural floor slab, the thickness of the floor slab and the flatness of the slab surface, and therefore, a novel split head structure which can control the thickness of the protective layer and can control the flatness of the cast-in-place structural floor slab is necessary to be designed.

SUMMERY OF THE UTILITY MODEL

For solving the above-mentioned technical problem that prior art exists, the utility model discloses research improvement provides the split heads of steerable floor protective layer thickness, floor thickness, face roughness on the basis of original split heads, not only simple manufacture, construction convenience, and stable, firm, can effectively restrain behind the floor thickness, improve the face roughness, guarantee the protective layer thickness.

The utility model aims at realizing through the following mode:

The utility model provides a split heads of cast-in-place slab flatness of control and protective layer thickness, includes high positioning element, split heads muscle and a plurality of support frame, the support frame is the style of calligraphy of falling V, and the support frame both ends are equipped with horizontal stabilizer blade, the split heads muscle welding is at the top of support frame and is connected a plurality of support frames, welds high positioning element on the split heads muscle.

The bottom edge of the height positioning component is welded on the horse stool rib.

The length of the height positioning member is determined to be smaller than the space between the negative bars of the plate, and is generally set to 80 mm. The width is determined according to the thickness of the protective layer and the diameter of the negative rib required by the specification.

The quantity of support frame also confirms according to the length of split heads muscle, and under general condition, the split heads muscle is longer, and the quantity of the support frame of connecting on it should be more, the utility model discloses in, the interval of support frame on the split heads muscle is preferred 10-15cm, and is no less than 3.

Preferably, the inverted V-shaped longitudinal section of the support frame is perpendicular to the length direction of the split heads.

More preferably, the vertex angle of the inverted V shape of the support frame is arc-shaped, and the external tangent angle of the arc-shaped is 15-45 degrees.

The horizontal support legs extend outwardly of the support frame in opposite directions.

The height and width of the height positioning member can be flexibly adjusted according to specific construction requirements.

The utility model discloses in, the length of split heads muscle should exceed two reinforcing bar intervals of the negative muscle of floor.

The utility model discloses in because height location component 1 highly is confirmed by the addition of the negative muscle diameter of board reinforcing bar and reinforcing bar protective layer thickness, and then guaranteed floor protective layer thickness. In addition, because the thickness of the whole support split heads from the template surface to the upper surface of the floor slab is fixed, the thickness of the floor slab has no larger error, the problem that the height of the column reinforcement is over-set by using an instrument in the prior art is solved, the work of measuring and pouring concrete by using a stay wire is solved, and the accumulated work errors in the work are reduced.

The utility model discloses a split heads welds high positioning component on the split heads muscle, highly controls floor protective layer thickness and floor surface's roughness through high positioning component, can the accurate control floor thickness through split heads overall structure. The utility model discloses a split heads structure is simple manufacture not only, and construction convenience, and stable firm can adopt old and useless reinforcing bar and iron sheet processing to make, but floor face thickness and reinforcing bar protective layer thickness in the effective control work progress improve the face roughness.

Drawings

fig. 1 is a schematic structural view of the split heads of the present invention.

Fig. 2 is one of the using state diagrams of the split heads of the present invention.

Fig. 3 is a longitudinal sectional view of the split heads of the present invention in use.

Fig. 4 is a transverse sectional view of the use state of the split heads of the present invention.

In the figure: 1-height positioning component, 2-split heads, 3-support frame, 4-horizontal support leg, 5-concrete, 6-floor upper reinforcing bar net piece and 7-floor bottom reinforcing bar net piece.

Detailed Description

The structure of the present invention will be further described with reference to the accompanying drawings, which are only preferred embodiments of the present invention and are not intended as limitations of the present invention.

the split heads shown in fig. 1 are composed of a height positioning component 1, split heads ribs 2 and three support frames 3, wherein the height positioning component is made of a steel plate with the thickness of 1mm, the height is 80mm, the split heads ribs 2 are made of waste steel ribs with the thickness of 6mm, the support frames 3 are inverted V-shaped, horizontal support legs 4 extending outwards from the support frames in the opposite direction are arranged at two ends of each support frame, the split heads ribs 2 are welded at the tops of the support frames 3 and connected with the tops of the three support frames 3, the bottoms of the height positioning component 1 are welded on the split heads ribs 2, and the distance between the support frames is 15 cm.

The usage of the split heads of the present invention is described with reference to fig. 2-4, wherein the height of the supporting frame 3, the height and the length of the height positioning member 1 are determined by calculation according to the thickness of the floor slab, the fitting is made according to the determined height, and then the split heads are welded according to the illustration. The specific using method comprises the following steps:

1) Placing split heads on the surface of the template at the interval of 1 m;

2) Placing a floor slab bottom reinforcing mesh 7 on a horizontal support leg of the split heads;

3) Placing a reinforcing mesh 6 at the upper part of the floor slab on a split heads, binding a negative rib at the upper part of the floor slab on a split heads rib 2, and protruding a height positioning member 1 welded on the split heads rib 2 from a gap between the negative ribs of the mesh at the upper part of the floor slab;

4) In floor concrete 5 pours the in-process to 1 top surface of high positioning member is the benchmark, adopts the long aluminum alloy scraping ruler of 2 meters to make the concrete face towards the muscle, scrapes flat whole floor face with towards the muscle again, the utility model discloses the split heads is pour in the concrete simultaneously.

The method can accurately control the thickness of the steel bar protective layer and the flatness of floor pouring.

The present invention is capable of other embodiments, and various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the invention.

Claims

1. The split heads for controlling the flatness of the cast-in-place slab and the thickness of the protective layer are characterized by comprising height positioning members (1), split heads ribs (2) and a plurality of supporting frames (3), wherein the split heads ribs (2) are welded at the tops of the supporting frames (3), and the height positioning members (1) are welded on the split heads ribs (2); the height positioning member (1) has a length of 80 mm.

2. the split heads for controlling the flatness and the thickness of the protective layer of the cast-in-place slab as claimed in claim 1, wherein the supporting frame (3) is in an inverted V shape.

3. The split heads for controlling the flatness and thickness of a cast-in-place slab as claimed in claim 2, wherein the two ends of the supporting frame (3) are provided with horizontal supporting legs (4).

4. The split heads for controlling the flatness of cast-in-place slabs and the thickness of the protective layer according to claim 1, wherein the bottom edges of the height positioning members (1) are welded on the split heads (2).

5. the split heads for controlling the flatness and thickness of cast-in-place slabs according to claim 1, wherein the length of the height positioning member (1) is less than the interval of the slab negative reinforcement.

6. the split heads for controlling the flatness of cast-in-place slabs and the thickness of the protective layers as claimed in claim 1, wherein the interval of the supporting frames (3) on the split heads (2) is 10-15cm, and the number of the supporting frames (3) is at least 3.

7. The split heads for controlling the flatness and the thickness of the protective layer of the cast-in-place slab as claimed in claim 1, wherein the inverted V-shaped longitudinal section of the support frame (3) is perpendicular to the length direction of the split heads (2).

8. The split heads for controlling the flatness of cast-in-place slabs and the thickness of protective layers as claimed in claim 1, wherein the vertex angle of the inverted V shape of the support frame (3) is set to be an arc shape, and the external tangent angle of the arc shape is 15-45 °.

9. A split heads for controlling the flatness of cast in place panels and the thickness of the protective layer as claimed in claim 3, characterised in that the horizontal legs (4) extend in opposite directions outwards of the support frame.

10. The split heads for controlling the flatness and thickness of a cast-in-place slab of claim 1, wherein the length of the split heads (2) exceeds the distance between two steel bars of the slab negative bar.