CN206495501U - A kind of cast-in-place concrete floor reserving hole template - Google Patents

Abstract

The utility model discloses a formwork for reserved holes in cast-in-situ concrete floor slabs, which comprises a floor formwork and several groups of pre-embedded sleeve components arranged on the floor formwork; the pre-embedded sleeve components include a The reserved hole sleeve on the formwork, the baffle plate arranged on the top of the reserved hole sleeve, the fixed sleeve arranged on the baffle plate, and the sleeves passing through the reserved hole, the baffle in turn slab, the fixed sleeve and the fasteners for fixing the reserved hole sleeve, the baffle plate, and the fixed sleeve on the floor formwork, and pour the floor concrete layer on the floor formwork at the same time; The utility model has the advantages of fast installation and dismantling, basically no material loss, no components left in the concrete layer of the floor after dismantling, and it is beneficial to the self-waterproofing of the structure.

Description

A formwork with reserved holes for cast-in-place concrete floor slabs

technical field

The utility model belongs to the technical field of concrete, in particular to a formwork with holes reserved for cast-in-situ concrete floor slabs.

Background technique

In the construction of cast-in-place concrete slabs, it is a common process to reserve the holes for the pipelines through the floor slab. The traditional reservation usually adopts the pre-embedding method of PVC sleeves sealed with tape, and the sleeves are fixed on the surface of the floor formwork with iron wires and nails. After the final setting, take out the embedded casing when the concrete surface is not damaged, and complete the hole reservation work. Since the embedded casing is fixed with iron wire, and the iron wire is outside the casing, it will remain in the concrete and cannot be removed when pouring concrete. At the same time, the iron nails that fix the iron wires are also fixed on the bottom of the concrete floor. The iron nails need to be cut off before the subsequent ceiling decoration, which not only wastes materials such as iron wires, iron nails, tapes, etc. Hidden danger, removing the steel nails requires a mobile portal scaffold, which increases the workload.

Contents of the invention

The purpose of the utility model is to provide a template with reserved holes for cast-in-place concrete floor which has fast installation and removal speed, basically no material loss, leaves no components in the concrete layer of the floor after removal, and is conducive to self-waterproofing of the structure.

The technical scheme of the utility model is: a cast-in-situ concrete floor template with holes reserved, including a floor template, and several groups of pre-embedded casing components arranged on the floor template; the pre-embedded casing components include a The reserved hole casing on the floor formwork, the baffle plate arranged on the top of the reserved hole casing, the fixed casing arranged on the said baffle plate, and sequentially passing through the reserved hole casing, Fasteners for fixing the baffle plate, the fixing sleeve and the reserved hole sleeve, the baffle plate, and the fixing sleeve on the floor formwork, and pouring floor concrete on the floor formwork at the same time Floor.

As a preferred technical solution, the fastener includes a threaded steel bar passing through the fixed sleeve, the baffle plate, and the reserved hole sleeve in sequence, and an operating handle arranged at the top of the threaded steel bar, and the bottom end of the threaded steel bar For the tip.

As a preferred technical solution, both the reserved hole sleeve and the fixed sleeve are made of PVC pipes.

As a preferred technical solution, the baffle is a wood board, and the baffle covers the hole at the upper end of the reserved hole sleeve.

As a preferred technical solution, threaded steel bar perforations are provided on the baffle, and the diameter of the fixing sleeve is larger than the inner diameter of the threaded steel bar perforation.

The construction sequence of the utility model is:

Step 1: Mark the structural position and center position of the embedded casing assembly on the floor formwork according to the center position and size of the embedded casing assembly structure in the construction drawings;

Step 2: Drill a hole at the center position of the embedded casing assembly marked on the floor template;

Step 3: Assemble the pre-embedded sleeve assembly, and fix the reserved hole sleeve, the baffle plate, and the fixed sleeve to the positions marked on the floor formwork by fasteners;

Step 4: Pouring the floor concrete layer on the floor formwork according to the design requirements;

Step 5: After the concrete layer of the floor slab is solidified, remove the embedded casing assembly and check for acceptance.

The utility model has the advantages of:

1. The floor formwork of this utility model can be made by using the existing building materials on the construction site. There is basically no material loss during use. Except for the reserved holes in the pre-embedded casing components, the casings are not in contact with the floor concrete layer. Take out the pre-embedded casing components There is no material left in the concrete structure, which is conducive to the self-waterproofing of the structure. Compared with the traditional embedded casing fixing method, there are no steel nails fixed on the surface of the floor formwork, and the steel nails will not be exposed after the floor formwork is removed, reducing the workload. , The formwork is made at one time without subsequent repairs. After the first drilling of the floor formwork (used by the fastener inserted into the embedded casing assembly), there is no need to repeat the same position in the subsequent construction, and the installation and removal speed is fast.

2. The construction speed of the utility model is faster than that of the conventional fixed method. It only needs simple operations such as drilling and tightening, and saves the work of tape sealing and fixing iron wires in the traditional pre-embedded method. The pre-embedding method saves materials such as iron wire, iron nails, and tape;

3. The sleeves with reserved holes and the baffles of the utility model are made of PVC, wood and other materials, and should not be damaged during use to ensure that concrete does not enter the sleeves with reserved holes, while the tape seals used in conventional pre-embedding are easily damaged.

Description of drawings

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

Fig. 1 is a top view of the structure of the utility model;

Fig. 2 is the A-A direction sectional view of Fig. 1 of the utility model;

Among them: 1 floor formwork, 2 reserved hole sleeves, 3 baffles, 4 fixed sleeves, 5 fasteners, 51 threaded steel bars, 52 operating handles, 53 pointed heads, 6 floor concrete layers.

detailed description

Embodiment: Referring to Figures 1 and 2, a reserved hole formwork for a cast-in-situ concrete floor slab includes a floor formwork 1, and several sets of embedded sleeve assemblies arranged on the floor formwork 1; the embedded sleeve assembly includes The reserved hole casing 2 placed on the floor formwork 1, the baffle 3 arranged on the top of the reserved hole casing 2, the fixed casing 4 arranged on the baffle 3, and the reserved hole casing 2 passed through in turn , baffle plate 3, fixed sleeve 4 and the fasteners 5 on the floor formwork 1 are fixed to the reserved hole sleeve 2, baffle plate 3, and fixed sleeve 4, and the floor concrete layer 6 is poured on the floor formwork 1 at the same time.

The fastener 5 of the present utility model includes a threaded steel bar 51 passing through the fixed sleeve 2, the baffle plate 3, and the reserved hole sleeve 4 in turn, and an operating handle 52 located at the top of the threaded steel bar 51, and the bottom end of the threaded steel bar 51 Be pointed 53.

Both the reserved hole casing 2 and the fixed casing 4 of the utility model are made of PVC pipes, and the baffle 3 is a wooden board, and the baffle 3 covers the hole at the upper end of the reserved hole casing 2, and the baffle 3 is provided with The threaded steel bar is perforated, and the diameter of the fixed sleeve 4 is greater than the threaded steel bar perforation inner diameter.

The construction sequence of the utility model is:

Step 1: According to the center position and size of the embedded casing assembly structure in the construction drawings, mark the structure position and center position of the embedded casing assembly on the floor formwork 1;

Step 2: Drill a hole at the center position of the pre-embedded casing assembly marked on the floor formwork 1;

Step 3: Assemble the pre-embedded sleeve assembly, and fix the reserved hole sleeve 2, baffle plate 3, and fixed sleeve 4 on the position marked by the floor formwork 1 through the fastener 5;

Step 4: pouring the floor concrete layer 6 on the floor formwork 1 according to the design requirements;

Step 5: After the floor concrete layer 6 is solidified, remove the embedded casing assembly and check for acceptance.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present utility model, and its purpose is to enable those familiar with this technology to understand the content of the present utility model and implement it accordingly, and not to limit the protection scope of the present utility model. All equivalent changes or modifications made according to the spirit of the utility model shall fall within the protection scope of the utility model.

Claims (5)

1. A cast-in-place concrete floor formwork with reserved holes, characterized in that it comprises a floor formwork (1), and several groups of embedded sleeve assemblies located on the floor formwork (1); The embedded casing assembly includes a reserved hole casing (2) placed on the floor template (1), a baffle (3) arranged on the top of the reserved hole casing (2), and a The fixed sleeve (4) on the baffle (3), and sequentially pass through the reserved hole sleeve (2), the baffle (3), the fixed sleeve (4) and the The fasteners (5) on the floor formwork (1) are fixed on the above-mentioned reserved hole sleeve (2), the baffle plate (3), and the fixed sleeve (4), while the floor formwork (1) ) on the pouring floor concrete layer (6). 2. The reserved hole formwork for cast-in-place concrete floor slab according to claim 1, characterized in that, the fasteners (5) include sequentially passing through the fixed sleeve (4), the baffle plate (3), and the reserved holes The threaded steel bar (51) of the casing (2), and the operating handle (52) arranged at the top of the threaded steel bar (51), and the bottom end of the threaded steel bar (51) is a pointed head (53). 3. The cast-in-place concrete floor template with reserved holes according to claim 1, characterized in that, both the reserved hole sleeve (2) and the fixed sleeve (4) are made of PVC pipes. 4. The template for reserved holes in cast-in-place concrete floor slabs according to claim 1, characterized in that, the baffle (3) is a wooden board, and the baffle (3) covers the reserved hole casing (2 ) upper hole. 5. The cast-in-place concrete floor template with reserved holes according to claim 1, characterized in that, the baffle plate (3) is provided with threaded steel bar perforations, and the diameter of the fixing sleeve (4) is larger than the The inside diameter of the threaded bar piercing.