CN212021120U - A grouting joint plugging mould reserved for the bottom of prefabricated columns in prefabricated buildings - Google Patents

Abstract

The utility model discloses a be used for prefabricated column bottom of assembly type structure to reserve grout seam shutoff mould, including main frame, subframe, adjusting frame and split screw, be provided with two subframes between two main frames, two subframe both ends are closely contradicted two relative inboards of main frame, and main frame and subframe constitute a square frame, and square frame inboard and bottom are provided with one deck rubber seal strip; the main frame is provided with mounting hole grooves, two ends of the adjusting frame penetrate through the mounting hole grooves, the adjusting frame and the auxiliary frame are arranged in a parallel and close fit mode, opposite-pulling screw rods penetrate between the two corresponding ends of the two adjusting frames, the opposite-pulling screw rods are located on the outer side of the main frame, and nuts arranged at two ends of the opposite-pulling screw rods are located on the outer sides of the two adjusting frames; the main frame, the auxiliary frame and the adjusting frame are fixed on the foundation ground through bolts; the device is applicable to the prefabricated post of various specifications, and the installation is convenient with dismantling.

Description

A grouting joint plugging mould reserved for the bottom of prefabricated columns in prefabricated buildings

technical field

The utility model relates to a grouting seam plugging mould reserved at the bottom of a prefabricated column of a prefabricated building, belonging to the technical field of construction equipment.

Background technique

In recent years, with the strong support of national policies for prefabricated buildings, prefabricated buildings have flourished, and a large number of prefabricated buildings have emerged everywhere. Since prefabricated buildings use a large number of prefabricated walls, columns and other components, how to connect prefabricated columns and cast-in-place slabs has become the focus and difficulty affecting the quality of prefabricated buildings. At present, the connection between prefabricated columns and cast-in-place slabs of prefabricated buildings basically adopts grouting sleeve grouting, and before grouting, the periphery of the bottom of the prefabricated column must be sealed with seat slurry to make it dense, firm, and leak-proof. However, in the actual grouting process on site, due to various reasons such as operator error, excessive grouting pressure, etc., the sealing of the seat slurry is not compact and firm, resulting in the leakage of the slurry. Moreover, this traditional method makes the prefabricated column hoisting and grouting process complicated, resulting in unnecessary waste of manpower and resources.

In the prior art, a telescopic structure composed of two fixed frames of different sizes is often used. When adjusting the length and width, when the frame is fixed at the bottom of the prefabricated column, the pressure is too low and there is a gap. Occurs, causing construction problems of slurry leakage. Due to the uneven bottom surface of the foundation, there is a gap between the device and the foundation ground, which eventually leads to the construction problem of leakage during the grouting process.

Utility model content

In order to solve the deficiencies in the prior art, the utility model discloses a grouting seam plugging mould reserved at the bottom of a prefabricated column of a prefabricated building. The device is suitable for prefabricated columns of various specifications and is easy to install and disassemble.

The utility model is realized through the following technical solutions:

A grouting joint plugging mold reserved for the bottom of prefabricated columns of prefabricated buildings, including a main frame, a sub-frame, an adjustment frame and a pair of pull screws, two sub-frames are arranged between the two main frames, and the two The two ends of the sub-frames are in close contact with the opposite inner sides of the two main frames, the two main frames and the two sub-frames form a square frame, and a layer of elastic rubber sealing strips are arranged on the inner side and bottom of the square frame;

The main frame is provided with an installation hole groove, the two ends of the adjustment frame pass through the installation hole groove of the main frame, the adjustment frame and the sub-frame are arranged in parallel and closely fitted, and a pair of pairs is passed between the corresponding ends of the two adjustment frames. A pull screw, the pair of pull screws is located on the outer side of the main frame, the two ends of the pair of pull screws are provided with nuts, and the nuts are located outside the two adjustment frames;

The main frame, the sub-frame and the adjustment frame are fixed on the foundation ground by bolts.

Further, elastic rubber sealing strips are arranged between the two ends of the two sub-frames and the opposite inner sides of the two main frames.

Further, the cross-sections of the main frame, the sub-frame and the adjustment frame are all L-shaped, and all include a transverse plate and a longitudinal plate, and the transverse plates of the main frame, the sub-frame and the adjustment frame are all fixed on the foundation ground by expansion bolts; The longitudinal plates of the auxiliary frame and the adjustment frame are correspondingly provided with threaded holes and are connected by bolts; the longitudinal plates of the main frame are provided with installation holes.

Further, the sub-frame includes a plurality of pieces joined end to end, elastic rubber sealing strips are arranged between the pieces, and each piece is provided with a threaded hole.

Further, the threaded holes on the adjusting frame are elongated.

Further, the mounting holes and grooves are elongated or L-shaped.

Compared with the prior art, the utility model has the following beneficial effects:

Using this mold, the prefabricated column can be directly hoisted, and the grouting construction can be started directly after the mold is installed and fixed without blocking the slurry of the seat, and the mold can be removed after the grouting material reaches a certain strength. In addition, the mold can be adjusted according to the size of the prefabricated column, suitable for prefabricated columns of various specifications, and has the characteristics of easy installation and disassembly, and can be used repeatedly, simplifying the construction process, saving materials and manpower, and has a good Promote value.

Description of drawings

The utility model will be further described below in conjunction with the accompanying drawings.

Fig. 1 is the structural representation of the utility model;

FIG. 2 is a schematic diagram of the structure of the pull screw and the installation hole groove in the utility model.

FIG. 3 is a schematic structural diagram of the main frame of the present invention being installed on the ground.

4 is a schematic front view of the assembly structure of the sub-frame and the adjusting frame in the present invention.

5 is a schematic side view of the assembly structure of the sub-frame and the adjusting frame in the present invention.

6 is a schematic diagram of the structure of the threaded holes on the adjusting frame of the present invention.

In the figure, 1-main frame, 2-subframe, 3-adjustment frame, 4-pair of pull screws, 5-elastic rubber sealing strip, 6-installation hole groove, 7-nut, 8-expansion bolt, 9-threaded hole , 10-handle, 11-block, 12-bolt.

Detailed ways

The present utility model will be described in further detail below in conjunction with specific embodiments, but the protection scope of the present utility model is not limited to these embodiments, and all changes or equivalent substitutions that do not deviate from the concept of the present utility model are included in the protection scope of the present utility model. Inside.

as the picture shows,

A grouting seam plugging mold reserved for the bottom of prefabricated columns of prefabricated buildings, characterized in that it includes a main frame 1, a sub-frame 2, an adjustment frame 3 and a pair of pull screws 4, and the two main frames 1 are arranged between There are two sub-frames 2, the two ends of the two sub-frames 2 are in close contact with the opposite inner sides of the two main frames 1, and the two parallel main frames 1 and the two parallel sub-frames 2 form a square frame, and the square frame A layer of elastic rubber sealing strip 5 is arranged on the inner side and the bottom;

The main frame 1 is provided with an installation hole slot 6, the two ends of the adjustment frame 3 pass through the installation hole slot 6 of the main frame, the adjustment frame 3 and the sub-frame 2 are arranged in parallel and closely fitted, and the two adjustment frames 3 correspond to two. A pair of pull screws 4 are pierced between the ends, and the pair of pull screws 4 are located outside the main frame 1 , and nuts 7 are provided at both ends of the pair of pull screws 4 , and the nuts 7 are located outside the two adjustment frames 3 ;

The main frame 1 , the sub-frame 2 and the adjustment frame 3 are fixed on the foundation ground by bolts.

Elastic rubber sealing strips 5 are arranged between the two ends of the two sub-frames 2 and the opposite inner sides of the two main frames 1 .

The cross-sections of the main frame 1, the sub-frame 2 and the adjustment frame 3 are all L-shaped, and they all include a horizontal plate and a vertical plate. On the foundation ground; the longitudinal plates of the sub-frame 2 and the adjustment frame 3 are correspondingly provided with threaded holes 9 and are connected by bolts 12 ; the longitudinal plate of the main frame 1 is provided with installation holes 6 .

The sub-frame 2 includes a plurality of pieces 11 spliced end to end, elastic rubber sealing strips 5 are arranged between the pieces, and each piece 11 is provided with a threaded hole 9 .

The screw holes 9 on the adjusting frame are elongated.

The mounting holes 6 are elongated or L-shaped.

The thickness of the elastic rubber sealing strip 5 is 3-8mm.

In actual production,

①The main frame adopts angle steel 50*50*5mm;

②The sub-frame is made of angle steel 50*50*5mm with a length of 10cm;

③Adjusting frame, angle steel 30*30*5mm;

④Elastic rubber sealing strip adopts 5mm thick rubber sealing strip;

⑤Mosaic, using 10cm long standard splicing mold.

The main frame and the base ground, the sub-frame and the base ground are fixed by M12 expansion bolts, and each 10cm-long standard splicing die on the sub-frame is fixed to the adjustment frame by M10 ordinary bolts; the two adjustment frames are fixed by the pair of pull screws and controlled length.

When in use, it can be adjusted according to the size of the prefabricated column.

1. Place the profiled steel mold close to the bottom of the prefabricated column and the foundation ground. When placing, you can pre-adjust the placement method and sub-frame specification according to the size of the pre-fabricated column. According to the size of the pre-fabricated column, use M10 for the standard mold with a length of 10cm on the sub-frame and the adjustment frame. Ordinary bolt splicing is completed.

2. Sufficient pressure must be exerted when fixing the profile steel mold, so that the 5mm thick rubber sealing strip at the bottom of the mold fits closely with the foundation ground without gaps, and the 5mm thick rubber sealing strip inside the mold closely fits the bottom of the prefabricated column without gaps to prevent grouting Leakage occurred during construction. By using the elasticity and cohesive properties of the 5mm rubber sealing strip, the mold, the foundation floor and the bottom of the prefabricated column can be effectively bonded together without gaps, and the grouting quality can be further ensured.

3. After placing it in the required position, compact the main frame against the bottom of the prefabricated column, and fix the main frame on the foundation ground with M12 expansion bolts, and then adjust the distance between the sub-frames back and forth through the reserved holes on the main frame, so that the After it is close to the prefabricated column and the ground of the foundation, the sub-frames on both sides are tightened and fixed firmly with the tension screw, and the sub-frame and the ground of the foundation are fixed with M12 expansion bolts.

4. After all the steel molds are firmly fixed, the prefabricated column grouting construction can be started directly, and the mold can be removed after the grouting material solidifies.

The present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (7)

1. A grouting joint plugging mold reserved for the bottom of prefabricated columns of prefabricated buildings, characterized in that it comprises a main frame (1), a sub-frame (2), an adjustment frame (3) and a pair of pull screws (4), Two sub-frames (2) are arranged between the two main frames (1), two ends of the two sub-frames (2) are in close contact with the opposite inner sides of the two main frames (1), and the two main frames (1) ) and two sub-frames (2) to form a square frame, and a layer of elastic rubber sealing strips (5) are arranged on the inner side and bottom of the square frame; The main frame (1) is provided with installation holes (6), both ends of the adjustment frame (3) pass through the installation holes (6) of the main frame, and the adjustment frame (3) is parallel to the sub-frame (2). The two adjusting frames (3) are arranged in close contact with opposite ends of the two adjusting frames (3) with a pair of pulling screws (4), which are located on the outside of the main frame (1), and opposite to the pulling screws (4) Nuts (7) are provided at both ends of the nut, and the nuts (7) are located outside the two adjustment frames (3); The main frame (1), the sub-frame (2) and the adjustment frame (3) are fixed on the foundation ground by bolts. 2. A kind of prefabricated building prefabricated column bottom reserved grouting joint plugging mold according to claim 1, characterized in that the two sub-frames (2) at both ends and the two main frames (1) An elastic rubber sealing strip (5) is arranged between the opposite inner sides. 3. A kind of prefabricated building prefabricated column bottom reserved grouting joint sealing mold according to claim 1, characterized in that the main frame (1), the sub-frame (2) and the adjustment frame (3) The cross-section of the main frame (1), the sub-frame (2) and the horizontal plate of the adjusting frame (3) are all fixed on the foundation ground by expansion bolts (8); The longitudinal plates of the frame (2) and the adjustment frame (3) are correspondingly provided with threaded holes (9) and are connected by bolts (12); the longitudinal plates of the main frame (1) are provided with mounting holes (6). 4. A kind of prefabricated building prefabricated column bottom reserved grouting joint plugging mold according to claim 1 or 3, characterized in that, the sub-frame (2) comprises a plurality of pieces (11) spliced end-to-end ), elastic rubber sealing strips (5) are arranged between the pieces, and threaded holes (9) are arranged on each piece (11). 5 . The grouting joint plugging mold reserved for the bottom of prefabricated columns of prefabricated buildings according to claim 4 , wherein the threaded holes (9) on the adjustment frame are elongated. 6 . 6 . The grouting joint plugging mold reserved for the bottom of prefabricated columns of prefabricated buildings according to claim 1 , wherein the installation hole groove ( 6 ) is elongated or L-shaped. 7 . 7. A grouting seam plugging mould reserved for the bottom of a prefabricated column of a prefabricated building according to claim 1 or 2, characterized in that the elastic rubber sealing strip (5) has a thickness of 3-8mm.

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