Prefabricated column wet connection construction device

Abstract

The prefabricated column wet connection construction device comprises a first prefabricated column and a second prefabricated column which are arranged up and down, a pouring space is formed between the first prefabricated column and the second prefabricated column, and a pouring opening is formed in the end, close to the second prefabricated column, of the first prefabricated column; the connecting assembly comprises two fixed formwork assemblies which are oppositely arranged around the pouring space and two movable formwork assemblies which are oppositely arranged, the connecting assembly is used for conducting concrete pouring after the first prefabricated column and the second prefabricated column are limited, and the movable formwork assemblies are located on one side of the pouring opening; the movable formwork assembly comprises a fixed end plate and a movable end plate, the fixed end plate and the movable end plate are arranged up and down and rotationally connected, the connecting portion of the fixed end plate and the movable end plate is located below the pouring opening, and the top end of the movable end plate is higher than the pouring opening. The movable template assembly adopts the rotary template, so that post-processing of a pouring gate is reduced.

Description

Technical Field

[0001] The present application relates to a construction device for wet connection of precast columns, belonging to the technical field of building construction. Background Art

[0002] With the continuous improvement of the assembly rate, the usage of precast columns, beams, and walls has gradually increased. The connection and construction methods of these precast components are one of the key technologies in the construction of precast concrete buildings. The wet connection of precast columns is a commonly used connection method in precast buildings. It connects precast components into a whole on-site by means of cast-in-place concrete or grouting material, etc., to enhance the strength and stability of the connection. When pouring concrete for the existing wet connection of precast columns, it is poured after formwork support. However, there may be over-pouring after pouring, resulting in the situation that residual concrete needs to be processed later at the pouring port. Summary of the Utility Model

[0003] According to one aspect of the present application, a construction device for wet connection of precast columns is provided. The movable formwork assembly of the construction device adopts a rotating formwork to reduce the later processing of the pouring port.

[0004] A construction device for wet connection of precast columns, characterized by comprising:

[0005] A first precast column and a second precast column arranged up and down, a pouring space is formed between the first precast column and the second precast column, and a pouring port is arranged at one end of the first precast column close to the second precast column;

[0006] A connection assembly, including two fixed formwork assemblies arranged oppositely around the pouring space and two movable formwork assemblies arranged oppositely, for limiting the first precast column and the second precast column and then pouring concrete. The movable formwork assembly is located on one side of the pouring port;

[0007] The movable formwork assembly includes a fixed end plate and a movable end plate. The fixed end plate and the movable end plate are arranged up and down and are rotationally connected. The connection part of the fixed end plate and the movable end plate is located below the pouring port, and the top end of the movable end plate is higher than the position of the pouring port;

[0008] Further, the movable end plate is connected to the fixed formwork assembly through fasteners for adjusting the opening angle between the movable end plate and the fixed end plate.

[0009] Further, end plates are vertically arranged at both ends in the width direction of the movable end plate, and the distance between the two end plates is consistent with the distance between the outer sides of the two fixed end plates;

[0010] The distance between the outer sides of the two fixed end plates is the sum of the distance between the two fixed end plates and the thicknesses of the two fixed end plates.

[0011] Furthermore, the fastener includes a lead screw, a fixing pin located at one end of the lead screw, and a nut sleeved on the lead screw;

[0012] The movable end plate is provided with a first pair of tension holes, the fixed template assembly is provided with a second pair of tension holes, the lead screw passes through the first pair of tension holes and the second pair of tension holes, and the nut is clamped on one side of the first pair of tension holes, and the fixing pin is clamped on one side of the second pair of tension holes, so as to realize the connection and angle adjustment between the movable end plate and the fixed template assembly.

[0013] Furthermore, both the first pair of tension holes and the second pair of tension holes are strip-shaped holes.

[0014] The beneficial effects that can be produced by this application include:

[0015] A precast column wet connection construction device provided by this application has a connection assembly, including two fixed template assemblies and two movable template assemblies that are oppositely arranged around the pouring space for limiting the first precast column and the second precast column and then pouring concrete. The movable template assembly is located on one side of the pouring port; the movable template assembly includes a fixed end plate and a movable end plate, the fixed end plate and the movable end plate are arranged up and down and are rotationally connected, the connection part of the fixed end plate and the movable end plate is located below the pouring port, and the top end of the movable end plate is higher than the position of the pouring port. Among them, the movable template assembly adopts a rotating template. After the concrete pouring is completed, the angle between the movable end plate and the fixed end plate is adjusted, so that the excess concrete is extruded accordingly, reducing the later treatment of the pouring port. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the precast column structure and position of this application;

[0017] Figure 2 It is a schematic diagram of the overall structure during the concrete pouring process of this application

[0018] Figure 3 It is a schematic diagram of the structure of the movable template assembly of this application;

[0019] Figure 4 It is a schematic diagram of the structure of the fixed template assembly of this application;

[0020] Figure 5 It is a schematic diagram of the fastener structure of this application;

[0021] Figure 6 It is a schematic diagram of the structure after the pouring is completed and fastened of this application;

[0022] List of components and reference numerals: 1 - First precast column; 2 - Second precast column; 3 - Pouring space; 4 - Pouring port; 5 - Fixed formwork assembly; 6 - Movable formwork assembly; 7 - Fixed end plate; 8 - Movable end plate; 9 - Fastener; 10 - End plate; 11 - Lead screw; 12 - Fixed pin; 13 - Nut; 14 - First tension hole; 15 - Second tension hole. Detailed implementation mode

[0023] The present application will be described in detail below with reference to the embodiments, but the present application is not limited to these embodiments.

[0024] See Figure 1-6 , a wet connection construction device for precast columns, characterized by comprising:

[0025] The first precast column 1 and the second precast column 2 are arranged up and down, a pouring space 3 is formed between the first precast column 1 and the second precast column 2, and a pouring port 4 is arranged at one end of the first precast column 1 close to the second precast column 2;

[0026] A connecting assembly, comprising two fixed formwork assemblies 5 arranged oppositely around the pouring space and two movable formwork assemblies 6 arranged oppositely, for limiting the first precast column 1 and the second precast column 2 and then pouring concrete, and the movable formwork assembly 6 is located on one side of the pouring port 4;

[0027] The movable formwork assembly 6 includes a fixed end plate 7 and a movable end plate 8, the fixed end plate 7 and the movable end plate 8 are arranged up and down and rotatably connected, the connection part of the fixed end plate 7 and the movable end plate 8 is located below the pouring port 4, and the top end of the movable end plate 8 is higher than the position of the pouring port 4;

[0028] The movable end plate 8 is connected to the fixed formwork assembly 5 through a fastener 9, which is used to adjust the opening angle between the movable end plate 8 and the fixed end plate 7.

[0029] Specifically, this wet connection construction device for precast columns aims to provide an efficient, flexible and reliable connection method for connecting precast columns of upper and lower layers in building construction. The first precast column 1 and the second precast column 2 are respectively located in the upper and lower layers, and they need to be connected through wet connection (i.e., concrete pouring) to form a solid structural connection. The pouring space 3 is the gap between the first precast column and the second precast column, which is used to fill concrete to achieve the connection. The pouring port 4 is arranged at one end of the first precast column close to the second precast column, which is the entrance for concrete pouring. At the same time, a corresponding slurry outlet is arranged at the upper end of the second precast column. During the concrete pouring process, the slurry outlet allows excess slurry or air bubbles to be discharged from the inside of the precast column, ensuring that the poured concrete is dense and free of cavities.

[0030] The fixed formwork component 5 and the movable formwork component 6 are fixed in place to provide a fixed boundary for the pouring space to ensure the shape and dimensional accuracy during concrete pouring, and are used for precisely limiting the precast column before pouring. The movable formwork component 6 is arranged opposite to the fixed formwork component, and the movable formwork component 6 is located on one side of the pouring port, and is used for pouring concrete through the pouring port on one side of the movable formwork component 6.

[0031] The movable formwork component 6 includes a fixed end plate 7 and a movable end plate 8. These two end plates are arranged vertically and are rotationally connected, so that the movable end plate can be angularly adjusted relative to the fixed end plate. The connection part is the connection point between the fixed end plate and the movable end plate, allowing the movable end plate to rotate around this point. The connection part is located below the pouring port to allow the smooth pouring of concrete during pouring. A movable hinge connection can be used for this connection here.

[0032] Height of the movable end plate: The top of the movable end plate is designed to be higher than the pouring port, which is to ensure that during concrete pouring, the concrete can flow smoothly into the pouring space, and at the same time, the movable end plate can also play a certain guiding and limiting role.

[0033] The fastener 9 is used to connect the movable end plate and the fixed formwork component. By adjusting the fastener, the opening angle between the movable end plate and the fixed end plate can be changed. This adjustment mechanism enables the construction personnel to control the pouring process according to the actual situation. Most importantly, when the pouring is completed, the movable end plate and the fixed end plate are located on the same horizontal plane, so that the excess concrete at the pouring port is extruded, thereby reducing the post-treatment of the pouring port.

[0034] It should be noted that in order to better achieve the fixing effect between the fixed formwork component and the movable formwork component, the fixed formwork component and the movable formwork component are fixed on the first precast column and the second precast column through connecting bolts;

[0035] At the same time, back plates are arranged around the fixed formwork component and the fixed end plate, and ribs are arranged between them for fixation, thereby enhancing their support strength.

[0036] End plates 10 are vertically arranged at both ends in the width direction of the movable end plate 7, and the distance between the two end plates 10 is consistent with the distance between the outer sides of the two fixed end plates 7;

[0037] The distance between the outer sides of the two fixed end plates 7 is the sum of the distance between the two fixed end plates 7 and the thicknesses of the two fixed end plates 7.

[0038] Specifically, the end plates 10 are vertically arranged at both ends in the width direction of the movable end plate 7. This design enables the movable end plate to contact the surrounding fixed structure, that is, the fixed formwork component, more stably when unfolding or closing, thereby providing better limiting and supporting effects.

[0039] The end plate 10 not only increases the rigidity and stability of the movable end plate, but also ensures that the movable end plate can be accurately aligned and contacted with the fixed structure when adjusting the angle. This helps to prevent slurry leakage and misalignment during the concrete pouring process.

[0040] The distance between the outer sides of the two fixed end plates 7 is calculated by adding the distance between the two fixed end plates 7 (i.e., the horizontal distance between their inner surfaces) and the sum of the thicknesses of the two fixed end plates 7. This calculation method ensures that there will be no excessive gap or overlap between them when the movable end plate contacts the fixed end plate, thus ensuring the accuracy and stability of the connection. Accurately calculating and controlling the distance between the outer sides of the fixed end plates 7 is crucial for ensuring the quality of the wet connection construction. If the distance is too large, it may cause slurry leakage during the concrete pouring process; if the distance is too small, it may limit the unfolding angle of the movable end plate and affect the flexibility of the connection.

[0041] The fastener 9 includes a screw rod 11, a fixed pin 12 located at one end of the screw rod 11, and a nut 13 sleeved on the screw rod 11;

[0042] The movable end plate 8 is provided with a first pair of tension holes 14, the fixed formwork assembly 5 is provided with a second pair of tension holes 15, the screw rod 11 passes through the first pair of tension holes 14 and the second pair of tension holes 15, and the nut 13 is clamped on one side of the first pair of tension holes 14, and the fixed pin 12 is clamped on one side of the second pair of tension holes 15 to realize the connection and angle adjustment between the movable end plate 8 and the fixed formwork assembly 5.

[0043] Specifically, the screw rod 11, as the main structural part of the fastener, is a metal rod with threads. It passes through the tension holes on the movable end plate 8 and the fixed formwork assembly 5 to connect these two components. The fixed pin 12 is located at one end of the screw rod 11, and the design of the fixed pin enables it to be firmly clamped in the second pair of tension holes 15 on the fixed formwork assembly 5. In this way, the fixed pin plays a role in preventing the screw rod from slipping out of the fixed formwork assembly and also provides a stable support point for the screw rod. The nut 13 is sleeved on the screw rod 11 and is located on one side of the first pair of tension holes 14 of the movable end plate 8. By rotating the nut, the nut can be moved along the thread direction of the screw rod, thereby changing the distance and angle between the movable end plate and the fixed formwork assembly. The design of the nut allows construction workers to make precise adjustments to meet different construction requirements. When the concrete pouring is completed, the movable end plate and the fixed formwork assembly are vertically arranged.

[0044] Both the first pair of tension holes 14 and the second pair of tension holes 15 are strip-shaped holes.

[0045] Specifically, it is set as a strip-shaped hole to enhance the adjustment flexibility. Compared with circular holes or holes with fixed dimensions, the strip-shaped hole provides a larger adjustment space. Since the shape of the hole is strip-shaped, the lead screw can move in the hole along a certain direction, allowing the relative position between the movable end plate and the fixed template assembly to change. This enables construction workers to more easily adjust the opening angle between the movable end plate and the fixed end plate to adapt to different construction requirements and site conditions.

[0046] Improve connection stability. Although the strip-shaped hole provides a large adjustment range, through reasonable design and construction control, it can ensure that the connection remains stable at the adjusted position. For example, by tightening the nut to lock the position of the lead screw and prevent it from moving during construction. The design of the strip-shaped hole can also reduce the problem of loose connection caused by hole position deviation or construction error, improving the stability and safety of the overall structure.

[0047] The design of the strip-shaped hole makes it more convenient and fast for construction workers to install and adjust fasteners. They can flexibly adjust the position of the lead screw according to the actual situation without worrying about hole position mismatch or inability to install.

[0048] The usage method of this construction device during production includes the following steps:

[0049] Step 1: First, determine the elevation positions of the upper and lower adjacent precast columns.

[0050] Step 2: Fix the movable template assembly and the fixed template assembly at the corresponding positions.

[0051] Step 3: Install the fasteners and adjust the nuts of the fasteners so that the two movable end plates are about 30°, which is convenient for pouring concrete.

[0052] Step 4: Pour concrete from the pouring port until the concrete at the grout outlet exceeds, and the pouring is completed.

[0053] Step 5: After the pouring is completed, adjust the nuts of the fasteners to make the two movable end plates shrink, and the pouring port and the grout outlet continuously shrink, squeezing out the excess grouting material as Figure 6 shown;

[0054] Step 6: After the concrete strength reaches the requirement, loosen all the screws and remove the formwork.

[0055] The utility model adopts a rotating template, reducing the post-treatment of the pouring port, and has a simple structure, reasonable design, easy use, and low input cost; at the same time, it plays a role in fixing the upper and lower adjacent precast columns, ensuring the construction quality; adopting a steel formwork, it can be reused repeatedly; it is convenient for the construction of the pouring node, reduces the construction difficulty, and improves the construction efficiency.

[0056] The above are only several embodiments of the present application and do not impose any form of limitation on the present application. Although the present application is disclosed above with preferred embodiments, it is not intended to limit the present application. Any person skilled in the relevant art can make some changes or modifications within the scope of the technical solution of the present application by using the disclosed technical content, which are equivalent to equivalent embodiments and all fall within the scope of the technical solution.

Claims

1. A wet connection construction device for precast columns, characterized in that, Comprising: A first precast column (1) and a second precast column (2) arranged vertically, a pouring space (3) is formed between the first precast column (1) and the second precast column (2), and a pouring port (4) is arranged at one end of the first precast column (1) close to the second precast column (2); A connecting assembly, including two fixed formwork assemblies (5) arranged oppositely around the pouring space and two movable formwork assemblies (6) arranged oppositely, for limiting the first precast column (1) and the second precast column (2) and then pouring concrete. The movable formwork assembly (6) is located on one side of the pouring port (4); The movable formwork assembly (6) includes a fixed end plate (7) and a movable end plate (8). The fixed end plate (7) and the movable end plate (8) are arranged vertically and rotatably connected. The connection part of the fixed end plate (7) and the movable end plate (8) is located below the pouring port (4), and the top end of the movable end plate (8) is higher than the position of the pouring port (4).

2. The precast column wet connection construction device according to claim 1, characterized in that, The movable end plate (8) is connected to the fixed formwork assembly (5) through a fastener (9) for adjusting the opening angle between the movable end plate (8) and the fixed end plate (7).

3. The wet connection construction device for precast columns according to claim 1, characterized in that, End plates (10) are vertically arranged at both ends in the width direction of the movable end plate (8), and the distance between the two end plates (10) is consistent with the distance between the outer sides of the two fixed end plates (7); The distance between the outer sides of the two fixed end plates (7) is the sum of the distance between the two fixed end plates (7) and the thicknesses of the two fixed end plates (7).

4. A precast column wet connection construction device according to claim 2, characterized in that, The fastener (9) includes a lead screw (11), a fixed pin (12) located at one end of the lead screw (11), and a nut (13) sleeved on the lead screw (11); A first tension hole (14) is arranged on the movable end plate (8), a second tension hole (15) is arranged on the fixed formwork assembly (5), the lead screw (11) passes through the first tension hole (14) and the second tension hole (15), and the nut (13) is clamped on one side of the first tension hole (14), and the fixed pin (12) is clamped on one side of the second tension hole (15) to realize the connection and angle adjustment between the movable end plate (8) and the fixed formwork assembly (5).

5. The precast column wet connection construction device according to claim 4, characterized in that, Both the first tension hole (14) and the second tension hole (15) are strip-shaped holes.

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