CN214144416U

CN214144416U - Prefabricated concrete block for controlling thickness of floor slab and reinforcing steel bar protective layer

Info

Publication number: CN214144416U
Application number: CN202022889577.6U
Authority: CN
Inventors: 颜立; 柯霓; 颜晓华; 颜云; 朱涛; 钟淼淋; 朱芳; 龙海
Original assignee: Hunan No5 Engineering Co ltd
Current assignee: Hunan No5 Engineering Co ltd
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2021-09-07
Anticipated expiration: 2030-12-04

Abstract

The utility model discloses a prefabricated concrete piece for controlling floor and reinforcing bar protective layer thickness, including last concrete piece and lower concrete piece, the upside of lower concrete piece is provided with the lower floor's steel bar support face of holding steel bar, and the upside of going up the concrete piece is provided with the upper steel bar support face of holding steel bar, goes up the mode clearance installation of concrete piece with upper and lower position adjustable on concrete piece down. The utility model discloses an go up the concrete piece and adopt adjustable bolted connection with lower concrete piece to can go up the distance of concrete piece and lower concrete piece in the online adjustment, and then adjust floor concrete thickness and the clearance of lower floor reinforcing bar, promote the commonality of concrete piece.

Description

Prefabricated concrete block for controlling thickness of floor slab and reinforcing steel bar protective layer

Technical Field

The utility model relates to a building engineering technical field especially relates to a prefabricated concrete piece that is used for controlling floor and reinforcing bar protective layer thickness.

Background

Before the concrete floor is poured, an upper layer of steel bars and a lower layer of steel bars are usually required to be suspended in the air, so that the strength of the floor is improved. At present, the mode of setting up prefabricated concrete piece between lower floor's reinforcing bar and the face of pouring, between upper and lower floor's reinforcing bar is established to the general adoption to keep the unsettled fixed setting of upper and lower two-layer reinforcing bar.

However, in the method, the suspended fixation and the thickness setting of the floor slab are realized by setting the height of the precast concrete block to be the distance between two layers of steel bars, the distance between an upper layer of steel bars and a lower layer of steel bars cannot be adjusted in real time on site, and the universality is poor; meanwhile, the prefabricated concrete block needs to be processed after the height parameter is set, and the processing time and the installation time are both longer; further, although the thickness of the lower steel bar protection layer is controlled in the pouring process, the whole thickness of the floor slab cannot be controlled.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prefabricated concrete piece for controlling floor and reinforcing bar protective layer thickness to solve above-mentioned problem.

In order to realize the above-mentioned purpose, the utility model discloses a prefabricated concrete piece for controlling floor and reinforcing bar protective layer thickness, including last concrete piece and lower concrete piece, the upside of concrete piece is provided with the lower floor's steel bar support face of holding reinforcement down, the upside of going up the concrete piece is provided with the upper steel bar support face of holding reinforcement, go up the concrete piece and install under on the concrete piece with lower position adjustable mode clearance.

Further, go up concrete block and concrete block down in one of them rigid coupling have the swivel nut, go up concrete block and concrete block down in another rigid coupling have the screw rod, the screw rod with swivel nut threaded connection.

Furthermore, a height limiting block used for limiting the pouring height of the concrete is arranged on the upper layer of steel bar supporting surface.

Furthermore, go up concrete block, concrete block and limit for height piece all adopt the precast concrete to take shape down, just concrete block and limit for height piece integrated into one piece down.

Furthermore, the end parts of the threaded sleeve and the screw rod are fixedly connected with reinforcing ribs, and the reinforcing ribs are embedded in the upper concrete block and the lower concrete block.

Furthermore, the reinforcing rib comprises a steel ring and a reinforcing steel bar arranged in the steel ring, one end of the reinforcing steel bar is fixedly connected with the threaded sleeve and the screw rod, and the other end of the reinforcing steel bar is fixedly connected to the steel ring.

Compared with the prior art, the utility model has the advantages of:

the utility model adopts the adjustable bolt connection of the upper concrete block and the lower concrete block, thereby adjusting the distance between the upper concrete block and the lower concrete block on line, further adjusting the thickness of the floor slab concrete and the clearance between the upper layer steel bar and the lower layer steel bar, and improving the universality of the concrete blocks; meanwhile, the upper concrete block and the lower concrete block are connected into a whole to form a more stable supporting structure; furthermore, the thickness of the upper layer steel bar protection layer is effectively controlled through the height limiting block.

The present invention will be described in further detail below with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

In the drawings:

fig. 1 is a schematic structural view of a precast concrete block for controlling the thickness of a floor slab and a protective layer of steel reinforcement according to the preferred embodiment of the present invention;

figure 2 is an axial view of the upper concrete block disclosed in the preferred embodiment of the present invention;

figure 3 is an axial view of the lower concrete block disclosed in the preferred embodiment of the present invention;

fig. 4 is a schematic view of the connection shaft of the upper concrete block and the lower concrete block reinforcing rib disclosed by the preferred embodiment of the present invention.

Illustration of the drawings:

1. adding concrete blocks; 2. placing a concrete block; 3. a lower layer of steel bar supporting surface; 4. a threaded sleeve; 5. a screw; 6. a height limiting block; 7. reinforcing ribs; 71. a steel ring; 72. reinforcing steel bars; 8. and an upper layer steel bar supporting surface.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

As shown in fig. 1-4, the utility model discloses a prefabricated concrete block for controlling floor and reinforcing bar protective layer thickness, including last concrete block 1 and lower concrete block 2, be the cylinder structure, the upside of lower concrete block 2 is provided with the lower floor's reinforcing bar holding surface 3 that supports lower floor's reinforcing bar, a thickness for adjusting lower floor's reinforcing bar protective layer, the upside of going up concrete block 1 is provided with the upper reinforcing bar holding surface 8 that supports upper reinforcing bar, go up concrete block 1 and install on concrete block 2 down with lower position adjustable mode, thereby the clearance of lower floor's reinforcing bar about the control, and then can adapt to the different floor of pouring thickness, promote the application scope of prefabricated concrete block.

In this embodiment, the screw sleeve 4 is fixedly connected to the inner portion of the lower concrete block 2, the screw rod 5 is fixedly connected to the inner portion of the upper concrete block 1 (of course, the screw rod 5 may be fixedly connected to the inner portion of the lower concrete block 2, and the screw sleeve 4 may be fixedly connected to the inner portion of the upper concrete block 1), and the screw rod 5 is threadedly connected to the screw sleeve 4, so that the relative height can be adjusted by rotating the upper concrete block 1 when the device is used.

In this embodiment, the upper layer steel bar supporting surface 8 of the upper concrete block 1 is provided with the height limiting block 6 for limiting the concrete pouring height, so that the height limiting block is used for the reference of the thickness of the poured concrete, and the pouring can be stopped when the poured concrete just covers the height limiting block 6, so that the thickness of the protective layer of the upper layer steel bar is controlled, and the thickness of the floor slab is indirectly controlled.

In this embodiment, go up concrete block 1, concrete block 2 and limit for height piece 6 and all adopt the precast concrete to take shape down, wherein, concrete block 2 and limit for height piece 6 formula as an organic whole are poured and are taken shape down, and the batch production has improved production efficiency.

In this embodiment, the end portions of the threaded sleeve 4 and the screw rod 5 are fixedly connected with the reinforcing ribs 7, and the reinforcing ribs 7 are all embedded in concrete, so that the compressive strength of the concrete of the prefabricated concrete column block is improved, specifically, the reinforcing ribs 7 comprise steel rings 71 and reinforcing steel bars 72, one ends of the reinforcing steel bars 72 are welded with the lower ends of the threaded sleeve 4 and the upper end of the screw rod 5, and the other ends of the reinforcing steel bars are welded on the steel rings 71.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A precast concrete block for controlling the thickness of a floor slab and a steel bar protective layer is characterized by comprising an upper concrete block (1) and a lower concrete block (2), the upper side of the lower concrete block (2) is provided with a lower layer steel bar supporting surface (3) for supporting steel bars, an upper layer steel bar supporting surface (8) for supporting steel bars is arranged on the upper side of the upper concrete block (1), the upper concrete block (1) is arranged on the lower concrete block (2) in a clearance way with the upper and lower positions adjustable, one of the upper concrete block (1) and the lower concrete block (2) is fixedly connected with a threaded sleeve (4), a screw rod (5) is fixedly connected in the other one of the upper concrete block (1) and the lower concrete block (2), the screw rod (5) is in threaded connection with the threaded sleeve (4), the end parts of the threaded sleeve (4) and the screw rod (5) are fixedly connected with reinforcing ribs (7), the reinforcing ribs (7) are embedded in the upper concrete block (1) and the lower concrete block (2).

2. The precast concrete block for controlling the thickness of a floor slab and a reinforcing bar protective layer according to claim 1, wherein the upper reinforcing bar supporting surface (8) is provided with a height-limiting block (6) for limiting the casting height of concrete.

3. The precast concrete block for controlling the thickness of the floor slab and the steel bar protection layer according to claim 2, wherein the upper concrete block (1), the lower concrete block (2) and the height limiting block (6) are all precast by concrete, and the lower concrete block (2) and the height limiting block (6) are integrally formed.

4. The precast concrete block for controlling the thickness of a floor slab and a steel bar protective layer according to claim 1, wherein the reinforcing bar (7) comprises a steel ring (71) and a steel bar (72) arranged in the steel ring (71), one end of the steel bar (72) is fixedly connected with the screw sleeve (4) and the screw rod (5), and the other end of the steel bar is fixedly connected with the steel ring (71).