Quick-release prefabricated beam-column lock catch connecting device

Abstract

The utility model relates to the technical field of building construction, concretely relates to a quick-release type prefabricated beam column lock catch connecting device, including prefabricated column and prefabricated beam, the top of prefabricated column is installed with a plurality of vertical reinforcement, prefabricated beam is installed in the top of prefabricated column, and the connecting place of prefabricated column and prefabricated beam is provided with the lock catch assembly for quickly locking prefabricated beam on the top of prefabricated column, the utility model is through the lock catch assembly and dismounting subassembly that set up, and the both mutual synergistic effect, not only realized prefabricated beam and prefabricated column in the installation process quick, accurate alignment and firm locking, still through the detachable structure after grouting, solved the problem that traditional formwork is easily consolidated by concrete, cannot be disassembled and repeatedly used, the both combined use, not only promoted construction efficiency and connection quality, but also strengthened the overall stability and maintainability of node, is applicable to the prefabricated building engineering that needs quick assembly, structure is stable and has the repeated use requirement, has good practicality and popularization value.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a quick-release precast beam-column locking connection device. Background Technology

[0002] Precast beams and columns are core components in prefabricated buildings. They refer to concrete or steel structural beams and columns that are prefabricated in a factory and then transported to the construction site for assembly and installation. With the promotion and application of prefabricated buildings, the efficient connection method between precast beams and precast columns has become one of the key technologies in structural design and construction.

[0003] In existing technologies, such as the "A Precast Beam-Column Connection Device" with publication number CN222990895U, a support assembly is included. This support assembly connects the first end of a horizontally positioned first precast beam-column and the second end of a vertically positioned second precast beam-column. While this technology facilitates the hoisting of precast beams and columns and allows for precise hoisting, its simple structure reduces construction difficulty. Furthermore, it can serve as a wet connection casting template between precast beam-column nodes, improving construction efficiency. However, this technology still has some drawbacks in practical use: when connecting precast beams and columns, it primarily relies on manual positioning using bolts. Locking requires manual tightening of each component during construction, which is not only cumbersome and time-consuming, but also results in low assembly efficiency and extended construction periods, hindering efficient assembly. Furthermore, the connecting templates in this technology require bolts for mutual fixation, and the joints of the bolt connections are located precisely at the concrete pouring points. When concrete is poured into the joints for reinforcement, it can easily seep into the gaps between the templates, causing the bolts to solidify with the concrete. Consequently, during subsequent template removal, the bolts cannot be disassembled, and the templates cannot be easily removed or reused, thus affecting the turnover efficiency of the templates and the reusability of the components, which is detrimental to on-site construction management and resource conservation. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose a quick-release precast beam and column locking connection device to solve the problems of long installation cycle and difficult disassembly of formwork in existing precast beam and column connection devices.

[0005] Based on the above objectives, this utility model provides a quick-release precast beam-column locking connection device, including a precast column and a precast beam. Multiple vertical reinforcing bars are installed on the top of the precast column, and the precast beam is installed on the top of the precast column. A locking assembly for quickly locking the precast beam to the top of the precast column is provided at the connection between the precast column and the precast beam. The locking assembly includes four L-shaped steel plates fixedly connected to the top of the precast column and T-shaped steel plates fixedly connected to both ends of the precast beam. The four L-shaped steel plates are located at the four corners of the top of the precast column. When the T-shaped steel is installed on the top of the precast column, one side of the T-shaped steel contacts one side of the L-shaped steel plate. A disassembly assembly is provided on the outside of the top of the precast column, which can be disassembled after concrete is poured into the connection between the precast column and the precast beam.

[0006] Preferably, there is a connecting hole between two adjacent L-shaped steel plates. When the precast beam is installed on the top of the precast column, the outside of one end of the T-shaped steel is inserted into the inside of the connecting hole, and the two sides of the other end of the T-shaped steel are in contact with one side of the two L-shaped steel plates.

[0007] Preferably, multiple transverse reinforcing bars are fixedly connected to both ends of the precast beam. The positions of the multiple transverse reinforcing bars are located on both sides of the T-shaped steel, and the multiple transverse reinforcing bars located on both sides of the T-shaped steel are arranged vertically. Slots are opened at both ends of the L-shaped steel plate. When the T-shaped steel is inserted into the connecting hole, the multiple transverse reinforcing bars are inserted into the slot.

[0008] Preferably, the L-shaped steel plate has alignment grooves at the top of both ends, the bottom of the middle part of the alignment groove is connected to the slot, and the two sides of the slot are slidably connected with insert steel plates. When the transverse steel bar is inserted into the slot, the insert steel plate is inserted between the slot and the transverse steel bar.

[0009] Preferably, a limiting block is fixedly connected to the top of the insert plate steel, and the specifications and dimensions of the limiting block are adapted to the specifications and dimensions of the alignment groove. When the insert plate steel is inserted into the slot, the limiting block is precisely engaged in the alignment groove.

[0010] Preferably, the disassembly assembly includes a support plate installed on the four sides of the top of the precast column. The support plate is located at the bottom of the L-shaped steel plate. When the precast beam is connected to the top of the precast column, the bottom of the precast beam contacts the top of the support plate at the end away from the precast column.

[0011] Preferably, side plates are fixedly connected to both sides of the receiving plate, and when the precast beam is connected to the top of the precast column, the two side plates are in contact with the two sides of the precast beam on opposite sides.

[0012] Preferably, a positioning plate is fixedly connected to the bottom of one end of the precast column of the receiving plate. The positioning plate is fixed to one side of the precast column by multiple bolts. Multiple support plates are fixedly connected to one side of the positioning plate at an inclined angle. The end of the support plate away from the positioning plate is fixedly connected to the bottom of the receiving plate.

[0013] The beneficial effects of this utility model are:

[0014] 1. Through the design of locking and disassembly components, the two work together to achieve not only rapid and accurate alignment and secure locking of precast beams and columns during installation, but also, through the detachable structure after grouting, solve the problems of traditional formwork being easily solidified by concrete, unable to be disassembled and reused. The combined use of the two improves construction efficiency and connection quality, and enhances the overall stability and maintainability of the joints. It is suitable for prefabricated building projects that require rapid assembly, structural stability and reusability, and has good practicality and promotion value.

[0015] By using a locking assembly, L-shaped steel plates at the four corners of the precast column and T-shaped steel plates at both ends of the precast beam work together to achieve rapid alignment and secure locking of the precast beam. The T-shaped steel plates are inserted into the connection holes, and the horizontal reinforcing bars are embedded in the slots. The insertion plates and limiting blocks achieve self-locking, effectively avoiding the cumbersome operation of traditional manual pin and bolt fixing, improving assembly efficiency and accuracy, reducing construction errors, and enhancing the tensile and shear resistance of the node connection, thus meeting the connection requirements of efficient and reliable precast buildings.

[0016] The modular assembly, installed on the outside of the top of the precast column, is used to constrain the grouting area after the beam-column connection, ensuring directional concrete injection. Its detachable design effectively avoids the problem of bolts becoming stuck and unable to be disassembled due to concrete seepage into the joint during the grouting process, which is common with traditional connection formwork. After grouting is completed and cured, the modular assembly can be removed as a whole, facilitating the reuse of the formwork, improving component turnover efficiency, reducing construction resource waste, and meeting the actual needs of green construction and on-site management. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the installation of the precast beam of this utility model;

[0020] Figure 3 This is a schematic diagram of the disassembly and assembly components of this utility model;

[0021] Figure 4 This is an enlarged structural schematic diagram of the L-shaped steel plate of this utility model;

[0022] Figure 5 This is an enlarged structural schematic diagram of the T-shaped steel of this utility model;

[0023] Figure 6 This is a schematic diagram of the disassembly and assembly components of this utility model.

[0024] The diagram is marked as follows:

[0025] 1. Precast column; 2. Precast beam; 3. Vertical reinforcement; 4. L-shaped steel plate; 5. Connecting hole; 6. Slot; 7. Alignment slot; 8. T-shaped steel; 9. Horizontal reinforcement; 10. Insert plate steel; 11. Limiting block; 12. Positioning plate; 13. Support plate; 14. Support plate; 15. Bolt; 16. Side plate. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0027] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0028] Such as this utility model Figures 1 to 6The invention provides a quick-release precast beam-column locking connection device, including a precast column 1 and a precast beam 2. The top of the precast column 1 is equipped with multiple vertical reinforcing bars 3. The precast beam 2 is installed on the top of the precast column 1. A locking assembly for quickly locking the precast beam 2 to the top of the precast column 1 is provided at the connection between the precast column 1 and the precast beam 2. The locking assembly includes four L-shaped steel plates 4 fixedly connected to the top of the precast column 1 and T-shaped steel 8 fixedly connected to both ends of the precast beam 2. The four L-shaped steel plates 4 are located at the four corners of the top of the precast column 1. When the T-shaped steel 8 is installed on the top of the precast column 1, one side of the T-shaped steel 8 contacts one side of the L-shaped steel plate 4. A disassembly assembly is provided on the outside of the top of the precast column 1. The disassembly assembly is used to disassemble the precast column 1 and the precast beam 2 after concrete is poured at the connection between the precast column 1 and the precast beam 2.

[0029] By using a combination of locking and disassembly components, the precast beam 2 and precast column 1 can be quickly and accurately aligned and securely locked during installation. The detachable structure after grouting also solves the problems of traditional formwork being easily solidified by concrete, unable to be disassembled or reused. The combined use of these components improves construction efficiency and connection quality, while also enhancing the overall stability and maintainability of the joint. This approach is suitable for prefabricated building projects that require rapid assembly, structural stability, and reusability, demonstrating good practicality and promotional value.

[0030] like Figures 1 to 5 As shown, there are connecting holes 5 between two adjacent L-shaped steel plates 4. When the precast beam 2 is installed on the top of the precast column 1, the outside of one end of the T-shaped steel 8 is inserted into the inside of the connecting hole 5, and the two sides of the other end of the T-shaped steel 8 are in contact with one side of the two L-shaped steel plates 4.

[0031] By using a locking assembly, the L-shaped steel plates 4 located at the four corners of the top of the precast column 1 and the T-shaped steel plates 8 located at both ends of the precast beam 2 work together to achieve rapid alignment and secure locking of the precast beam 2. During installation, the two ends of the precast beam 2 are first aligned with the tops of the two precast columns 1, and then the precast beam 2 is placed downwards. At this time, one end of the T-shaped steel plate 8 connected to the precast beam 2 will be inserted into the connection hole 5, and the two sides of the T-shaped steel plate 8 away from the precast beam 2 will contact one side of the two L-shaped steel plates 4. This causes the precast beam 2 to be automatically locked to the top of the two precast columns 1, thus avoiding the trouble of using bolts 15 to fix the bracket for positioning in the traditional way. This effectively avoids the cumbersome operation of relying on manual pins and bolts 15 for fixing, improves assembly efficiency and accuracy, and reduces construction errors.

[0032] like Figures 1 to 5As shown, multiple transverse steel bars 9 are fixedly connected to both ends of the precast beam 2. The positions of the multiple transverse steel bars 9 are located on both sides of the T-shaped steel 8, and the multiple transverse steel bars 9 located on both sides of the T-shaped steel 8 are arranged vertically. The two ends of the L-shaped steel plate 4 are respectively provided with slots 6. When the T-shaped steel 8 is inserted into the interior of the connecting hole 5, the multiple transverse steel bars 9 are inserted into the interior of the slot 6.

[0033] With the addition of transverse reinforcing bars 9 and slots 6, the transverse reinforcing bars 9 are embedded in slots 6 while the T-shaped steel 8 is inserted into the connecting hole 5. Then, self-locking is achieved by the insert plate steel 10 and the limiting block 11. The addition of transverse reinforcing bars 9 increases the shear resistance of beams and columns, and also facilitates the setting of concrete during later pouring, avoiding the problem of concrete falling off. At the same time, it enhances the tensile and shear resistance of the joint connection, meeting the connection requirements of efficient and reliable prefabricated buildings.

[0034] like Figures 1 to 5 As shown, the top of both ends of the L-shaped steel plate 4 is provided with alignment grooves 7. The bottom of the middle part of the alignment groove 7 is connected to the slot 6. The two sides of the slot 6 are slidably connected with insert steel plates 10. When the transverse steel bar 9 is inserted into the slot 6, the insert steel plate 10 is inserted between the slot 6 and the transverse steel bar 9. The top of the insert steel plate 10 is fixedly connected with a limiting block 11. The specifications and dimensions of the limiting block 11 are adapted to the specifications and dimensions of the alignment groove 7. When the insert steel plate 10 is inserted into the slot 6, the limiting block 11 is inserted into the alignment groove 7.

[0035] With the insertion plate 10 and the limiting block 11, when the transverse steel bar 9 is inserted into the slot 6, the insertion plate 10 is then inserted into the slot 6, causing the insertion plate 10 to be stuck between the transverse steel bar 9 and the slot 6, thus squeezing the transverse steel bar 9 inside the slot 6 and increasing the tensile stress of the transverse steel bar 9. At the same time, when the insertion plate 10 is inserted into the slot 6, the limiting block 11 is just stuck into the alignment groove 7. This can avoid the problem of the limiting block 11 protruding from the top of the L-shaped steel plate 4 and affecting subsequent installation.

[0036] like Figure 3 and Figure 6 As shown, the assembly and disassembly components include support plates 13 installed on the four sides of the top of the precast column 1. The support plates 13 are located at the bottom of the L-shaped steel plate 4. When the precast beam 2 is connected to the top of the precast column 1, the bottom of the precast beam 2 is in contact with the top of the support plate 13 at the end away from the precast column 1. Side plates 16 are fixedly connected to both sides of the support plate 13. When the precast beam 2 is connected to the top of the precast column 1, the two side plates 16 are in contact with the two sides of the precast beam 2 on opposite sides.

[0037] The support plate 13 and side plate 16 facilitate the later pouring of concrete at the connection. The overall design avoids the problem of concrete setting bolt 15. At the same time, it facilitates the alignment and connection of the precast beam 2 and the precast column 1 during the initial installation.

[0038] like Figure 1 , Figure 3 and Figure 6 As shown, a positioning plate 12 is fixedly connected to the bottom of the receiving plate 13 at one end of the precast column 1. The positioning plate 12 is fixed to one side of the precast column 1 by multiple bolts 15. Multiple support plates 14 are fixedly connected to one side of the positioning plate 12 at an inclined angle. The end of the support plate 14 away from the positioning plate 12 is fixedly connected to the bottom of the receiving plate 13.

[0039] The support plate 14 serves to support the precast beam 2 during the initial installation of the receiving plate 13. Later, during concrete pouring, the support plate 14 also supports the concrete. The receiving plate 13 and side plate 16, after beam-column connection, constrain the grouting area, ensuring directional concrete pouring. The structure is detachable, effectively avoiding the problem of bolts 15 becoming stuck and unable to be removed due to concrete seepage into the joints during grouting, a problem common with traditional formwork connections. After grouting and curing, the positioning plate 12 is connected to one side of the top of the precast column 1 using bolts 15. The assembly can be completely removed, facilitating formwork reuse, improving component turnover efficiency, reducing construction resource waste, and meeting the practical needs of green construction and on-site management. It should be noted that the assembly is pre-installed in the factory during the production of the precast column 1; therefore, it is not necessary to install the assembly again during the later installation of the precast beam 2.

[0040] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0041] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A quick-release prefabricated beam-column lock buckle connecting device, comprising a prefabricated column (1) and a prefabricated beam (2), a plurality of vertical steel bars (3) are installed on the top of the prefabricated column (1), and the prefabricated beam (2) is installed on the top of the prefabricated column (1), characterized in that, The connection between the precast column (1) and the precast beam (2) is provided with a locking assembly for quickly locking the precast beam (2) onto the top of the precast column (1). The locking assembly includes four L-shaped steel plates (4) fixedly connected to the top of the precast column (1) and T-shaped steel (8) fixedly connected to both ends of the precast beam (2). The four L-shaped steel plates (4) are located at the four corners of the top of the precast column (1). When the T-shaped steel (8) is installed on the top of the precast column (1), one side of the T-shaped steel (8) contacts one side of the L-shaped steel plate (4). The top of the precast column (1) is provided with a disassembly assembly, which is used to disassemble the column (1) after concrete is poured at the connection between the precast column (1) and the precast beam (2).

2. The quick-release precast beam-column lock-and-clip connection device of claim 1, wherein, A connecting hole (5) is provided between two adjacent L-shaped steel plates (4). When the precast beam (2) is installed on the top of the precast column (1), the outside of one end of the T-shaped steel (8) is inserted into the inside of the connecting hole (5), and the two sides of the other end of the T-shaped steel (8) are in contact with one side of the two L-shaped steel plates (4).

3. The quick-release precast beam-column lock-and-clip connection device of claim 2, wherein, The precast beam (2) is fixedly connected to multiple transverse steel bars (9) at both ends. The positions of the multiple transverse steel bars (9) are located on both sides of the T-shaped steel (8), and the multiple transverse steel bars (9) located on both sides of the T-shaped steel (8) are arranged vertically. The L-shaped steel plate (4) is provided with slots (6) at both ends. When the T-shaped steel (8) is inserted into the connection hole (5), the multiple transverse steel bars (9) are inserted into the slot (6).

4. The quick-release precast beam-column lock-and-clip connection of claim 3, wherein, The L-shaped steel plate (4) has a top alignment groove (7) at both ends. The bottom of the middle part of the alignment groove (7) is connected to the slot (6). The slot (6) is slidably connected with insert steel plates (10). When the transverse steel bar (9) is inserted into the slot (6), the insert steel plate (10) is inserted between the slot (6) and the transverse steel bar (9).

5. The quick-release precast beam-column lock-and-clip connection of claim 4, wherein, The top of the insert plate steel (10) is fixedly connected to a limiting block (11). The size of the limiting block (11) is adapted to the size of the alignment groove (7). When the insert plate steel (10) is inserted into the slot (6), the limiting block (11) is just inserted into the alignment groove (7).

6. The quick-release precast beam-column lock-and-clip connection device of claim 1, wherein, The assembly and disassembly assembly includes a support plate (13) installed on the four sides of the top of the precast column (1). The support plate (13) is located at the bottom of the L-shaped steel plate (4). When the precast beam (2) is connected to the top of the precast column (1), the bottom of the precast beam (2) is in contact with the top of the support plate (13) at the end away from the precast column (1).

7. The quick-release precast beam-column lock-and-clip connection of claim 6, wherein, The receiving plate (13) is fixedly connected to two side plates (16) on both sides. When the precast beam (2) is connected to the top of the precast column (1), the two side plates (16) on opposite sides are in contact with the two sides of the precast beam (2).

8. The quick-release precast beam-column lock-and-clip connection device of claim 7, wherein, The receiving plate (13) is fixedly connected to the bottom of one end of the precast column (1) with a positioning plate (12). The positioning plate (12) is fixed to one side of the precast column (1) by multiple bolts (15). Multiple support plates (14) are fixedly connected to one side of the positioning plate (12) at an inclined angle. The end of the support plate (14) away from the positioning plate (12) is fixedly connected to the bottom of the receiving plate (13).

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