Slurry leakage prevention reinforcing device for assembly type laminated slab

Abstract

The utility model discloses an assembly type laminated slab anti-slurry-leakage reinforcing device which comprises a sealing piece arranged between the end face of a supporting formwork and the joint of a laminated slab and an extrusion assembly used for providing pre-tightening force between the laminated slab and the supporting formwork at a post-cast strip. The extrusion assembly comprises an upper pressing piece arranged on the upper surface of the laminated slab, a lower abutting piece arranged at the bottom of the supporting formwork and a screw assembly penetrating through the supporting formwork and connecting the upper pressing piece and the lower abutting piece to form an opposite-pulling structure. The reinforcing device of the opposite-pull structure is arranged between the supporting formwork at the post-cast strip and the superposed beam, so that the reinforcing steel bars are tightly attached between the supporting formwork and the superposed beam; meanwhile, the structure of a sealing piece at the joint of the supporting formwork and the superposed beam is improved, so that sealing of the joint is enhanced; the device is simple in structure, easy to manufacture and convenient to use, effectively improves the grout leakage prevention effect and the construction efficiency of the joint of the supporting formwork and the superposed beam, generates good economic benefits and is suitable for popularization and application.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to an assembled composite plate anti-leakage slurry reinforcement device. Background Art

[0002] The composite slab is an assembled integral floor slab made of precast slabs and cast-in-place concrete layers. The post-cast strip is a concrete strip left at the corresponding position of the foundation slab, wall and beam in accordance with the design specifications to prevent harmful cracks that may occur in the cast-in-place reinforced concrete structure due to its own uneven shrinkage or settlement during construction.

[0003] In the existing related technologies, the precast panel includes a precast panel body, main stress-bearing bars and structural steel bars. The main stress-bearing bars and structural steel bars are buried in the precast panel body, and a post-cast strip is formed between adjacent precast panel bodies. Generally, scaffolding or independent columns are used to support the post-cast strip. After the support is completed, concrete is poured, and the post-cast strip is poured together with the precast panel body to form a composite panel. However, in the existing related technologies, it is necessary to set up support for the post-cast strip area. Due to the construction space under the floor slab, it is easy to cause difficulties in formwork and long formwork time, thereby affecting the construction period; there are also existing technologies that use other formwork structures to achieve a close connection between the composite panel and the supporting formwork, but the structure is relatively complex and the components used are difficult to manufacture; at the same time, the sealing effect of the existing sealing strip between the composite panel and the supporting formwork is not good, which is easy to cause leakage. Utility Model Content

[0004] In view of the shortcomings of the prior art, the present application provides a prefabricated composite slab anti-leakage reinforcement device, which aims to improve the difficulties and long formwork time of the post-casting strip in the construction of the composite slab, which easily affects the construction period and is prone to leakage.

[0005] The utility model provides an assembled composite plate anti-leakage reinforcement device, including a sealing member arranged between the end face of the supporting formwork and the connection between the composite plate and the composite plate, and an extrusion assembly for providing a pre-tightening force between the composite plate and the supporting formwork at the post-casting zone, wherein the extrusion assembly includes an upper clamping member arranged on the upper surface of the composite plate, a lower abutting member arranged at the bottom of the supporting formwork, and a screw assembly that penetrates the supporting formwork and connects the upper clamping member and the lower abutting member to form a tensioning structure.

[0006] Furthermore, the upper clamping member includes a connecting cross bar which is overlapped with the upper surfaces of the left and right superimposed plates at the post-cast strip respectively, and the connecting cross bar is provided with mounting seats on the upper and lower sides in the height direction respectively, and the upper mounting seat is provided with an upper connecting part, and the upper connecting part is used to install a measuring piece for measuring the elevation of the poured concrete, and the lower mounting seat is provided with a lower connecting part, and the lower connecting part is used to connect with the screw assembly.

[0007] Furthermore, the screw assembly includes a connecting sleeve and a screw, the upper portion of the connecting sleeve is connected to the lower connecting portion, the lower portion of the connecting sleeve is connected to the upper end of the screw, and the lower portion of the screw passes through a through hole provided on the support template and is connected to the lower abutment member.

[0008] Furthermore, the lower abutment member includes an abutment block sleeved on the screw rod, a wooden plank arranged below the supporting formwork, and a steel pipe arranged between the wooden plank and the abutment block. A nut matching the screw thread is arranged below the abutment block, and the nut is used to lock the lower abutment member on the screw rod.

[0009] Furthermore, the sealing member includes a lower mounting portion, and a mounting groove for embedding the lower mounting portion is provided on the supporting template, and a sealant is further provided between the lower mounting portion and the mounting groove.

[0010] Furthermore, the sealing member also includes an upper extrusion portion connected to the bottom of the laminated plate, and the cross-sectional shape of the upper extrusion portion is annular.

[0011] In summary, the present application includes at least one of the following beneficial effects: the prefabricated composite slab leakage prevention reinforcement device provided in the utility model arranges a reinforcement device of a tensioning structure between the supporting formwork and the composite beam at the post-casting strip, so that the support formwork and the composite beam fit more closely; at the same time, the sealing structure at the connection between the supporting formwork and the composite beam is improved to strengthen the sealing of the connection; the device has a simple structure, is easy to manufacture and easy to use, effectively improves the leakage prevention effect and construction efficiency at the connection between the supporting formwork and the composite beam, produces good economic benefits, and is suitable for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present application is further described in detail below in conjunction with the accompanying drawings.

[0013] Figure 1 It is a structural schematic diagram of the reinforcement device in the utility model;

[0014] Figure 2 It is a structural schematic diagram of the connecting cross bar in the utility model;

[0015] Figure 3 It is a structural schematic diagram of the sealing member in the utility model;

[0016] Explanation of the reference numerals: 1-composite plate; 2-supporting formwork; 3-sealing member; 4-connecting cross bar; 5-connecting sleeve; 6-screw; 7-wooden square; 8-steel pipe; 9-abutment block; 10-nut; 11-measuring member; 12-limiting bolt; 401-connecting cross bar body; 402-mounting seat; 403-upper connecting part; 404-lower connecting part; 301-upper extrusion part; 302-lower mounting part. DETAILED DESCRIPTION

[0017] The utility model provides an assembled composite plate anti-leakage reinforcement device, including a sealing member 3 arranged between the end face of a supporting formwork 2 and the connection between the composite plate 1 and an extrusion assembly for providing a pre-tightening force between the composite plate and the supporting formwork at a post-casting strip, wherein the extrusion assembly includes an upper clamping member arranged on the upper surface of the composite plate 1, a lower abutting member arranged at the bottom of the supporting formwork 2, and a screw assembly that penetrates the supporting formwork 2 and connects the upper clamping member and the lower abutting member to form a tensioning structure; by arranging an extrusion assembly with a tensioning structure at the connection between the composite plate 1 and the supporting formwork 2, an extrusion assembly that provides a pre-tightening force between the composite plate and the supporting formwork at the post-casting strip is provided, so that the two are closely fitted, and at the same time, the sealing member structure at the connection between the supporting formwork and the composite beam is improved to strengthen the sealing at the connection; the device has a simple structure, is easy to manufacture, and is convenient to use, and effectively improves the anti-leakage effect and construction efficiency at the connection between the supporting formwork and the composite beam.

[0018] In this embodiment, the upper clamping member includes a connecting cross bar 4 that is overlapped with the upper surfaces of the left and right superimposed plates at the post-casting strip, and the connecting cross bar 4 is respectively provided with mounting seats 402 on the upper and lower sides in the height direction, and the upper mounting seat is provided with an upper connecting portion 403, and the upper connecting portion 403 is used to install a measuring member 11 for measuring the elevation of poured concrete, and the lower mounting seat is provided with a lower connecting portion 404, and the lower connecting portion 404 is used to connect with the screw assembly; combined with Figure 1 and Figure 2 As shown, the connecting cross bar 4 includes a connecting cross bar body 401, and the connecting cross bar body 401 is respectively welded with mounting seats 402 on the upper and lower sides relative to each other in the vertical direction, and an upper connecting portion 403 is arranged on the upper mounting seat, and the connecting portion 403 is mainly a threaded screw structure for installing the measuring piece 11; the measuring piece 11 is a sleeve structure made of a steel pipe, with a scale engraved on the outer surface for measuring the elevation of poured concrete, and an internal thread is arranged on the inner surface for connecting with the upper connecting portion 403; the lower connecting portion 404 is used for connecting with the screw assembly and includes a connecting section with a hexagonal axial cross section.

[0019] In this embodiment, the screw assembly includes a connecting sleeve 5 and a screw 6, the upper portion of the connecting sleeve 5 is connected to the lower connecting portion 404, the lower portion of the connecting sleeve 5 is connected to the upper end of the screw 6, and the lower portion of the screw 6 passes through the through hole set on the support template 2 and is connected to the lower abutment member; Figure 1 As shown, a threaded section is provided inside the connecting sleeve 5, and a limiting section cooperating with the connecting section is also provided at the position where the top is connected to the lower connecting part 404, which is mainly used to prevent the lower connecting part 404 and the connecting sleeve 5 from rotating. At the same time, a limiting bolt 12 is also radially provided at the connection to prevent the connecting sleeve from falling off.

[0020] In this embodiment, the lower abutment member includes an abutment block 9 sleeved on the screw rod 6, a wooden block 7 arranged below the supporting formwork 2, and a steel pipe 8 arranged between the wooden block 7 and the abutment block 9. A nut 10 matching the screw thread is arranged below the abutment block 9. The nut 10 is used to lock the lower abutment member on the screw rod 6. Figure 1 As shown, the lower abutment is similar to the structure of one end of the water stop bolt in the prior art. Through this structure and the connecting cross bar, a pulling structure is formed, which can simultaneously apply a pre-tightening force between the left and right composite plates and the supporting formwork, making the connection between the two tighter and the gap smaller.

[0021] In this embodiment, the seal 3 includes a lower mounting portion 302, and a mounting groove for embedding the lower mounting portion 302 is provided on the support template 2, and a sealant is also provided between the lower mounting portion 302 and the mounting groove; the seal also includes an upper extrusion portion 301 connected to the bottom of the composite plate 1, and the cross-sectional shape of the upper extrusion portion 301 is circular; combined with Figure 1 and Figure 3 As shown, by opening an installation groove on the upper surface of the supporting formwork 2 and embedding the lower installation part 302 of the seal 3, the effect of preventing leakage of slurry between the composite plate and the supporting formwork during pouring can be effectively improved. The upper extrusion part 301 of the seal 3 is set to a circular ring shape, which can be more conducive to the extrusion and fitting between the composite plate and the supporting formwork, and the sealing effect is better; wherein the seal 3 is made of sponge material, which is easier to make. When using it, you only need to stick the seal 3 around the installation position of the composite plate on the template surface before hoisting the composite plate.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An assembled composite slab anti-leakage reinforcement device, characterized in that: It includes a sealing member arranged between the end face of the supporting formwork and the connection between the superimposed plate and the extrusion assembly for providing a pre-tightening force between the superimposed plate and the supporting formwork at the post-casting zone, the extrusion assembly includes an upper clamping member arranged on the upper surface of the superimposed plate, a lower abutting member arranged at the bottom of the supporting formwork, and a screw assembly that penetrates the supporting formwork and connects the upper clamping member and the lower abutting member to form a tensioning structure.

2. The assembly type composite slab anti-leakage reinforcement device according to claim 1 is characterized in that: The upper clamping member includes a connecting cross bar which is overlapped with the upper surfaces of the left and right superimposed plates at the post-cast strip respectively, an upper mounting seat is provided on the upper side of the connecting cross bar in the height direction, and a lower mounting seat is provided on the lower side of the connecting cross bar in the height direction, an upper connecting portion is provided on the upper mounting seat, and the upper connecting portion is used to install a measuring piece for measuring the elevation of poured concrete, and a lower connecting portion is provided on the lower mounting seat, and the lower connecting portion is used to connect with the screw assembly.

3. The assembly type composite slab anti-leakage reinforcement device according to claim 2 is characterized in that: The screw assembly includes a connecting sleeve and a screw, the upper portion of the connecting sleeve is connected to the lower connecting portion, the lower portion of the connecting sleeve is connected to the upper end of the screw, and the lower portion of the screw passes through a through hole provided on the supporting template and is connected to the lower abutment member.

4. The assembly type composite slab anti-leakage reinforcement device according to claim 3 is characterized in that: The lower abutment member includes an abutment block sleeved on the screw rod, a wooden block arranged below the supporting formwork, and a steel pipe arranged between the wooden block and the abutment block. A nut matching the screw thread is arranged below the abutment block, and the nut is used to lock the lower abutment member on the screw rod.

5. The assembly type composite slab anti-leakage reinforcement device according to claim 1 is characterized in that: The sealing member comprises a lower mounting portion, a mounting groove for embedding the lower mounting portion is arranged on the supporting template, and a sealing adhesive is further arranged between the lower mounting portion and the mounting groove.

6. The assembly type composite slab anti-leakage reinforcement device according to claim 5 is characterized in that: The sealing member further comprises an upper extrusion portion connected to the bottom of the laminated plate, and the cross-section of the upper extrusion portion is in a circular ring shape.

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