Prefabricated shear wall aluminum mold hole filling and plugging device

Abstract

The utility model discloses a prefabricated shear wall aluminum mould hole filling and plugging device, including the plugging plug and the grouting plug, install respectively in the both sides of shear wall aluminum mould hole, the grouting plug is circular table shape structure, and the inside coaxial opening has the cylinder cavity, install the piston disc of disc shape in the cylinder cavity, still have the guide rod fixedly in the cylinder cavity, the piston disc central opening has the perforation, is used for the axle position movement adjustment of bushing guide rod, and the cylinder cavity corresponds the limit device of guide rod end. Simple structure, easy to make and low cost, convenient operation, just need to plugging the both ends of prefabricated shear wall can start grouting filling, simple construction, construction quality controllable, guarantee plugging dense, save material cost and labor cost, reduce the later repair expense, guarantee construction quality and realize the project cost reduction and benefit increase at the same time, convenient to use, safe and reliable can improve construction efficiency and quality greatly.

Description

Technical Field

[0001] This utility model belongs to the technical field of building construction components, and in particular relates to a filling and sealing device for aluminum mold holes in prefabricated shear walls. Background Technology

[0002] Prefabricated buildings have higher requirements for the dimensions of cast-in-place structures. Aluminum alloy formwork is lightweight, easy and quick to install and dismantle, has a long service life, and produces a smooth cast surface, effectively reducing construction costs and improving construction efficiency. The aluminum alloy formwork itself has bolt tie-down holes for fixing the formwork on both sides of the wall to form a groove for casting. The pre-drilled reinforcement holes have a relatively large diameter, which needs to be sealed after the wall is cast.

[0003] However, the pre-reserved aluminum formwork holes in precast shear walls have a large diameter. Traditional construction methods mainly use cement mortar for sealing, injecting foaming agent into the aluminum formwork holes of the precast shear wall and finally sealing them with mortar. This method has the disadvantages of being difficult to operate and the mortar is not easy to fill densely, which can easily lead to quality problems such as surface cracking and water seepage in the later stage. Utility Model Content

[0004] The purpose of this utility model is to provide a filling and sealing device for aluminum mold holes in precast shear walls, which solves the problems of poor quality control, incomplete filling, and easy surface cracking and water seepage caused by traditional filling and sealing construction methods for precast shear walls.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] A precast shear wall aluminum formwork hole filling and sealing device includes a sealing plug and a grouting plug; respectively installed on both sides of the opening of the aluminum formwork hole in the shear wall;

[0007] The sealing plug includes a first cylinder inserted into the opening;

[0008] The grouting plug has a frustum-shaped structure with a cylindrical cavity coaxially formed inside. A disc-shaped piston disc is installed in the cylindrical cavity, and a guide rod is also coaxially fixed in the cylindrical cavity. A through hole is formed in the center of the piston disc for fitting the guide rod to adjust the axial position.

[0009] The cylindrical cavity has a limiting device at the end of the guide rod.

[0010] Furthermore, a second cylinder is integrally fixed to one end of the first cylinder, and an annular first water-stop ring is formed on the sides of both the first and second cylinders. The other end of the first cylinder has an inner groove and a knob.

[0011] Furthermore, a cross-shaped stop bar is fixed at one end of the cylindrical cavity corresponding to the insertion opening, serving as a limiting device, and the end of the guide rod is fixed to the center of the stop bar. The other end of the cylindrical cavity has an annular limiting part, used to reverse and block the piston disc after the mortar is filled.

[0012] Furthermore, the outer wall of the grouting plug is provided with multiple second water-stop rings.

[0013] The grouting plug also has a tail sleeve, which is a tube structure used to connect to the grouting pipe. The grouting plug has an annular groove for insertion into the end of the tail sleeve, and the grouting plug is detachably threaded onto the tail sleeve.

[0014] This utility model has the following advantages: it has a simple structure, is easy to manufacture and has low cost; it is convenient to operate, and grouting can begin simply by sealing both ends of the precast shear wall.

[0015] It is easy to construct, the construction quality is controllable, and the sealing is guaranteed to be tight; it saves material and labor costs, reduces later repair costs, and achieves cost reduction and efficiency improvement in the project while ensuring construction quality. It is convenient, safe and reliable to use, which can greatly improve construction efficiency and quality. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0017] Figure 1 : Schematic diagram of the grouting plug structure of this utility model.

[0018] Figure 2 : Schematic diagram of the sealing and plugging structure of this utility model.

[0019] Figure 3 : Schematic diagram of the sealing and installation state of this utility model.

[0020] Figure 4 : Schematic diagram of the axial cross-sectional structure of the grouting plug of this utility model.

[0021] Figure 5 : Schematic diagram of the tail sleeve installation structure of this utility model.

[0022] The components represented by each number in the attached diagram are listed below: sealing plug 1, grouting plug 2, first cylinder 11, cylindrical cavity 21, guide rod 3, second cylinder 12, first water-stop ring 13, knob 14, stop bar 31, limiting part 23, second water-stop ring 22, piston disc 4, tail sleeve 5, annular groove 24. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] like Figures 1-3 As shown: A precast shear wall aluminum formwork hole filling and sealing device includes a sealing plug 1 and a grouting plug 2; respectively installed at the two sides of the opening of the aluminum formwork hole in the shear wall;

[0025] The sealing plug 1 includes a first cylinder 11 inserted into the opening; the sealing plug is mainly made of water-swellable rubber, with a knob at the top, three water-stop rings in the middle, and a smaller diameter cylinder at the end with two more water-stop rings. When the filling mortar is poured into the end water-stop rings, it effectively bonds with the sealing plug. Once the mortar reaches the required strength, the sealing plug will not easily fall off in the later stages, effectively preventing liquid seepage.

[0026] The grouting plug 2 has a frustum-shaped structure and a cylindrical cavity 21 coaxially opened inside. A disc-shaped piston disc 4 is installed in the cylindrical cavity 21. A guide rod 3 is also coaxially fixed in the cylindrical cavity 21. A through hole is opened in the center of the piston disc 4 for connecting the guide rod 3 to adjust the axial position.

[0027] The cylindrical cavity 21 has a limiting device at the end of the guide rod 3.

[0028] The grouting plug is primarily made of plastic and is an assembly of a cylinder and a frustum. The frustum contains an anti-backflow device, mainly composed of a piston disc. When the sealing grout is injected from the outside, the piston disc is pushed into the bottom limiting device position, allowing the liquid to flow into the precast shear wall aluminum formwork hole. When the hole is full, the piston disc is pushed back and locked, preventing it from leaking out. Furthermore, the pressure from the full hole simultaneously prevents external liquid injection, thus completing the mortar filling and sealing of the precast shear wall aluminum formwork hole, ensuring a tight seal.

[0029] like Figure 2 As shown: A second cylinder 12 is integrally fixed to one end of a first cylinder 11. A first annular water-stop ring 13 is formed on the sides of both the first and second cylinders 11. The entire structure consists of two cylinders of different diameters. The first cylinder has three water-stop rings on its side wall, and the second cylinder has two water-stop rings. This increases friction and effectively prevents liquid from seeping in or flowing out. The other end of the first cylinder 11 has an inner groove and a knob 14. This facilitates the insertion of a water-expanding sealing plug into the precast shear wall aluminum formwork hole.

[0030] like Figure 4As shown: A cross-shaped stop bar 31 is fixed to one end of the cylindrical cavity 21 corresponding to the insertion opening, serving as a limiting device. The end of the guide rod 3 is fixed to the center of the stop bar 31. The four ends of the stop bar are fixed to the inner sidewall of the cylindrical cavity. The other end of the cylindrical cavity 21 has an annular limiting part 23, which is used to reverse and block the piston disc 4 after mortar filling. The mortar can flow into the precast shear wall aluminum formwork hole. When the hole is full, the piston disc is pushed back and stuck, preventing it from flowing out. The hole should be filled completely, and the pressure simultaneously prevents external liquid from being injected, thus completing the mortar filling and sealing of the precast shear wall aluminum formwork hole, and the seal is tight.

[0031] like Figure 5 As shown: Multiple second water-stop rings 22 are formed on the outer wall of the grouting plug 2. This increases friction, making the anti-backflow grouting plug less likely to fall off and effectively preventing liquid leakage.

[0032] The grouting plug 2 also has a tail sleeve 5, which is a tube structure used to connect to the grouting pipe. The grouting plug 2 has an annular groove 24 for the end of the tail sleeve 5 to be inserted. The grouting plug 2 is detachably threaded onto the tail sleeve 5. The tail sleeve facilitates the insertion of the grouting plug into the hole by hand, and then facilitates the connection of the grouting pipe for grout injection. It can be removed and reused later.

[0033] These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of this utility model, so that those skilled in the art can better understand and utilize this utility model.

Claims

1. A device for filling and sealing holes in aluminum formwork of precast shear walls, characterized in that: Includes a sealing plug (1) and a grouting plug (2); respectively installed on both sides of the opening of the aluminum formwork hole in the shear wall; The sealing plug (1) includes a first cylinder (11) inserted into the opening; The grouting plug (2) has a frustum-shaped structure and a cylindrical cavity (21) is coaxially opened inside. A disc-shaped piston disc (4) is installed in the cylindrical cavity (21). A guide rod (3) is also coaxially fixed in the cylindrical cavity (21). A through hole is opened in the center of the piston disc (4) for connecting the guide rod (3) to adjust the axial position. The cylindrical cavity (21) has a limiting device at the end of the guide rod (3).

2. The precast shear wall aluminum formwork hole filling and sealing device according to claim 1, characterized in that: A second cylinder (12) is integrally fixed to the end side of the first cylinder (11), and an annular first water-stop ring (13) is provided on the side of the first cylinder (11) and the second cylinder (12).

3. The precast shear wall aluminum formwork hole filling and sealing device according to claim 2, characterized in that: The other end of the first cylinder (11) has an inner groove and is provided with a knob (14).

4. The precast shear wall aluminum formwork hole filling and sealing device according to claim 1, characterized in that: The cylindrical cavity (21) is fixed with a cross-shaped baffle (31) at one end corresponding to the insertion opening, which serves as a limiting device. The end of the guide rod (3) is fixed to the center of the baffle (31).

5. The precast shear wall aluminum formwork hole filling and sealing device according to claim 4, characterized in that: The cylindrical cavity (21) has an annular limiting part (23) at the other end, which is used to reverse the piston disc (4) after the mortar is filled.

6. The precast shear wall aluminum formwork hole filling and sealing device according to claim 1, characterized in that: The outer wall of the grouting plug (2) has multiple second water-stop rings (22).

7. The precast shear wall aluminum formwork hole filling and sealing device according to claim 1, characterized in that: The grouting plug (2) also has a tail sleeve (5), which is a tube structure used to connect the grouting pipe. The grouting plug (2) has an annular groove (24) for the end side of the tail sleeve (5) to be inserted. The grouting plug (2) is detachably threaded onto the tail sleeve (5).

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