Cast-in-situ concrete frame beam and concrete composite slab connecting structure

Abstract

The present application belongs to the technical field of concrete, especially cast-in-place concrete frame beam and concrete composite slab connecting structure, aiming at the existing cast-in-place concrete frame beam and concrete composite floor slab connection through the cast-in-place layer to fix, which leads to the limited bearing capacity of the floor slab, and the steel bars are only embedded in the inside of the frame beam, and the connection position between them is less, and the connection strength is low, the present application proposes the following scheme, which includes a concrete composite slab and two concrete frame beams, the two concrete frame beams are symmetrically provided with installation insertion cavities, the beneficial effects of the present application are that: by inserting the special-shaped butt joint frame and the rectangular fixing frame on the concrete composite slab into the installation insertion cavities, and then pushing the unlocking rod, the special-shaped butt joint frame and the rectangular fixing frame can be automatically positioned, the concrete composite slab and the concrete frame beam can be quickly connected and positioned, and cannot be separated, which greatly increases the connection strength.

Description

Technical Field

[0001] This invention relates to the field of concrete technology, and more particularly to a connection structure between cast-in-place concrete frame beams and concrete composite slabs. Background Technology

[0002] Composite floor slabs are assembled monolithic floor slabs made by stacking precast slabs and cast-in-place reinforced concrete layers. Composite floor slabs have good integrity, and the upper and lower surfaces of the slab are flat, which facilitates the finishing layer decoration. They are suitable for high-rise buildings and large-span buildings with high requirements for overall rigidity.

[0003] The existing connection between cast-in-place concrete frame beams and concrete composite slabs is fixed by the cast-in-place layer, which results in limited load-bearing capacity of the slab. Moreover, the reinforcing bars are only embedded inside the frame beams, with few connection points between them and low connection strength. Therefore, this invention proposes a connection structure between cast-in-place concrete frame beams and concrete composite slabs. Summary of the Invention

[0004] Based on the existing technical problems that the connection between cast-in-place concrete frame beams and concrete composite floor slabs is fixed through the cast-in-place layer, resulting in limited load-bearing capacity of the floor slab, and the reinforcement is only embedded inside the frame beam, with few connection points and low connection strength, this invention proposes a connection structure between cast-in-place concrete frame beams and concrete composite floor slabs.

[0005] The present invention proposes a connection structure between cast-in-place concrete frame beams and concrete composite slabs, comprising a concrete composite slab and two concrete frame beams. Symmetrically arranged installation insertion chambers are provided on both concrete frame beams. Irregularly shaped docking frames are fixedly installed on the left and right sides of the concrete composite slab, and symmetrically arranged rectangular fixing frames are fixedly installed on the bottom of the concrete composite slab. There are two rectangular fixing frames and two irregularly shaped docking frames. Both the two irregularly shaped docking frames and the two rectangular fixing frames slide in contact with the inner wall of the installation insertion chamber. The installation insertion chamber is respectively provided with an unlocking mechanism, an insertion mechanism, a connecting mechanism, and a docking mechanism. The docking mechanism cooperates with the irregularly shaped docking frame and the connecting mechanism, respectively. The connecting mechanism cooperates with the unlocking mechanism, the unlocking mechanism cooperates with the insertion mechanism, and the insertion mechanism cooperates with the rectangular fixing frame.

[0006] Using the aforementioned mechanism: after inserting the irregularly shaped docking frame and rectangular fixing frame on the concrete composite slab into the installation insertion chamber, pushing the unlocking rod will automatically position the irregularly shaped docking frame and rectangular fixing frame, enabling rapid connection and positioning of the concrete composite slab and concrete frame beam, making them inseparable and greatly increasing the connection strength. Pushing the double-ended cylindrical unlocking frame will unlock the irregularly shaped docking frame and rectangular fixing frame, facilitating the disassembly and cleaning of misaligned concrete composite slabs, making it convenient to use.

[0007] Preferably, the insertion mechanism includes a blocking insertion frame, a rack, a gear, a mating frame, and a compression spring. The blocking insertion frame is slidably connected to the inner wall of the installation insertion chamber. The blocking insertion frame is fixedly connected to the rack, which meshes with the gear. The gear is rotatably connected to the front inner wall of the installation insertion chamber. The mating frame is slidably connected to the inner wall of the installation insertion chamber and meshes with the gear. The mating frame is fixedly connected to the return spring, and the compression spring is fixedly installed on the inner wall of the installation insertion chamber.

[0008] Furthermore, after the blocking insert is inserted into the rectangular fixing frame, the blocking insert can connect the rectangular fixing frame and the concrete frame beam. By blocking the movement of the rectangular fixing frame in the installation insertion chamber, the rectangular fixing frame can be positioned, thus achieving the connection between the concrete frame beam and the concrete composite slab.

[0009] Preferably, the unlocking mechanism includes a push rod, a double-ended cylindrical unlocking frame, a tension spring, a double-ended telescopic rod, an unlocking rod, a fixing block, a positioning spring, and a positioning rod. The push rod is rotatably connected to the double-ended cylindrical unlocking frame, which is slidably connected to the inner wall of the installation insertion chamber. The double-ended cylindrical unlocking frame is rotatably connected to the double-ended telescopic rod, which is rotatably connected to the inner wall of the installation insertion chamber. The unlocking rod is slidably connected to the inner wall of the double-ended cylindrical unlocking frame. The positioning rod is slidably connected to the inner wall of the installation insertion chamber. The positioning rod is fixedly connected to the positioning spring, which is fixedly connected to the fixing block. The fixing block is fixedly installed on the inner wall of the installation insertion chamber.

[0010] Furthermore, after the unlocking lever is pushed, the position of the double-ended cylindrical unlocking bracket can be unlocked, and the double-ended cylindrical unlocking bracket can release the blocking insertion bracket and the fitting bracket, so that the fitting bracket can dock with the fitting irregular docking bracket, and the blocking insertion bracket can dock with the rectangular fixing bracket.

[0011] Preferably, the connecting mechanism includes a sliding frame and a push rod. The sliding frame is slidably connected to the inner wall of the installation insertion chamber, the sliding frame is rotatably connected to the push rod, and the sliding frame is rotatably connected to the double-ended telescopic rod.

[0012] Furthermore, after the sliding frame is driven to rotate, the sliding frame can push the push rod, which can then activate the bonding frame, allowing the bonding frame to fit into the irregular docking frame and connect the irregular docking frame to the concrete frame beam.

[0013] Preferably, the docking mechanism includes a bonding frame, a docking rod, a return spring, and a fixing plate. The bonding frame cooperates with the installation insertion chamber, the bonding frame is slidably connected to the docking rod, the docking rod is fixedly connected to the return spring, the return spring is fixedly connected to the fixing plate, and the fixing plate is in slidable contact with the bonding frame.

[0014] Furthermore, after the connecting rod is attached to the irregular connecting frame, the connecting rod can position the irregular connecting frame, making it impossible for the irregular connecting frame to be pulled out and installed into the cavity, thus enabling precise docking of the concrete composite slab and the concrete frame beam.

[0015] Preferably, the inner side of the rectangular fixing frame is provided with an insertion through hole, the outer side of the blocking insertion frame slides in contact with the inner wall of the insertion through hole, and the right side of the installation insertion chamber is provided with a rectangular groove.

[0016] Furthermore, after the blocking insert is inserted into the through hole, the blocking insert can prevent the rectangular fixing frame from moving, thus achieving the positioning of the rectangular fixing frame.

[0017] Preferably, the top of the double-ended cylindrical unlocking frame is provided with a positioning groove, and the bottom end of the positioning rod slides in contact with the inner wall of the positioning groove.

[0018] Furthermore, after the positioning rod is inserted into the positioning groove, it can block the movement of the double-ended cylindrical unlocking frame, thus achieving the positioning of the double-ended cylindrical unlocking frame.

[0019] Preferably, a limiting block is fixedly installed on the top of the sliding frame, and the limiting block is rotatably connected to the push rod.

[0020] Furthermore, the limiting block is used to connect the push rod and the sliding frame, so that when the sliding frame pushes the push rod to rotate to the horizontal position, the limiting block can fit with the push rod, and the sliding frame can drive the push rod to move horizontally when it moves again.

[0021] The beneficial effects of this invention are: by inserting the irregular-shaped docking frame and rectangular fixing frame on the concrete composite slab into the installation insertion chamber, and then pushing the unlocking rod, the irregular-shaped docking frame and rectangular fixing frame can be automatically positioned, thereby achieving rapid connection and positioning of the concrete composite slab and concrete frame beam, making them inseparable and greatly increasing the connection strength. Attached Figure Description

[0022] Figure 1 This is a schematic front view of the structure of the connection between the cast-in-place concrete frame beam and the concrete composite slab proposed in this invention.

[0023] Figure 2 This is a side view of the double-ended cylindrical unlocking frame of the connection structure between the cast-in-place concrete frame beam and the concrete composite slab proposed in this invention.

[0024] Figure 3 This is a schematic front sectional view of the structural concrete frame beam of the connection structure between the cast-in-place concrete frame beam and the concrete composite slab proposed in this invention.

[0025] Figure 4 This is a three-dimensional schematic diagram of the structural sliding frame of the connection structure between the cast-in-place concrete frame beam and the concrete composite slab proposed in this invention.

[0026] Figure 5 The structural attachment of the cast-in-place concrete frame beam and concrete composite slab connection structure proposed in this invention Figure 1 Schematic diagram of method A in the middle;

[0027] Figure 6 The structural attachment of the cast-in-place concrete frame beam and concrete composite slab connection structure proposed in this invention Figure 1 Enlarged diagram of B in the middle;

[0028] Figure 7 The structural attachment of the cast-in-place concrete frame beam and concrete composite slab connection structure proposed in this invention Figure 1 Enlarged diagram of C.

[0029] In the diagram: 1. Concrete composite slab; 2. Concrete frame beam; 3. Installation insertion chamber; 4. Irregularly shaped docking frame; 5. Rectangular fixing frame; 6. Blocking insertion frame; 7. Rack; 8. Gear; 9. Fitting frame; 10. Compression spring; 11. Pressing rod; 12. Double-ended cylindrical unlocking frame; 13. Tension spring; 14. Unlocking rod; 15. Double-ended telescopic rod; 16. Fixing block; 17. Positioning spring; 18. Positioning rod; 19. Sliding frame; 20. Push rod; 21. Limiting block; 22. Fitting frame; 23. Docking rod; 24. Return spring; 25. Fixing plate. Detailed Implementation

[0030] The present invention will be further explained below with reference to specific embodiments.

[0031] refer to Figure 1-7This embodiment proposes a connection structure between cast-in-place concrete frame beams and concrete composite slabs, including a concrete composite slab 1 and two concrete frame beams 2. Each of the two concrete frame beams 2 has a symmetrically arranged installation insertion chamber 3. Irregularly shaped docking frames 4 are fixedly installed on the left and right sides of the concrete composite slab 1. A symmetrically arranged rectangular fixing frame 5 is fixedly installed on the bottom of the concrete composite slab 1. There are two rectangular fixing frames 5 and two irregularly shaped docking frames 4. Both the two irregularly shaped docking frames 4 and the two rectangular fixing frames 5 slide in contact with the inner wall of the installation insertion chamber 3. The installation insertion chamber 3 is provided with an unlocking mechanism, an insertion mechanism, a connecting mechanism, and a docking mechanism. The docking mechanism cooperates with the irregularly shaped docking frame 4 and the connecting mechanism, respectively. The connecting mechanism cooperates with the unlocking mechanism, the unlocking mechanism cooperates with the insertion mechanism, and the insertion mechanism cooperates with the rectangular fixing frame 5.

[0032] Using the aforementioned mechanism: after inserting the irregularly shaped docking frame 4 and the rectangular fixing frame 5 on the concrete composite slab 1 into the installation insertion chamber 3, pushing the unlocking rod 14 can automatically position the irregularly shaped docking frame 4 and the rectangular fixing frame 5, thus achieving rapid connection and positioning of the concrete composite slab 1 and the concrete frame beam 2, making them inseparable and greatly increasing the connection strength. Pushing the double-ended cylindrical unlocking frame 12 can then unlock the irregularly shaped docking frame 4 and the rectangular fixing frame 5, facilitating the disassembly and cleaning of the misaligned concrete composite slab 1, making it convenient to use.

[0033] The insertion mechanism includes a blocking insertion frame 6, a rack 7, a gear 8, a mating frame 9, and a compression spring 10. The blocking insertion frame 6 is slidably connected to the inner wall of the installation insertion chamber 3. The blocking insertion frame 6 is fixedly connected to the rack 7, and the rack 7 meshes with the gear 8. The gear 8 is rotatably connected to the front inner wall of the installation insertion chamber 3. The mating frame 9 is slidably connected to the inner wall of the installation insertion chamber 3, and the mating frame 9 meshes with the gear 8. The mating frame 9 is fixedly connected to the return spring 24. The compression spring 10 is fixedly installed on the inner wall of the installation insertion chamber 3. After the blocking insertion frame 6 is inserted into the rectangular fixing frame 5, the blocking insertion frame 6 can connect the rectangular fixing frame 5 and the concrete frame beam 2. By blocking the movement of the rectangular fixing frame 5 within the installation insertion chamber 3, the rectangular fixing frame 5 can be positioned, thereby achieving the connection between the concrete frame beam 2 and the concrete composite slab 1.

[0034] The unlocking mechanism includes a push rod 11, a double-ended cylindrical unlocking frame 12, a tension spring 13, a double-ended telescopic rod 15, an unlocking rod 14, a fixing block 16, a positioning spring 17, and a positioning rod 18. The push rod 11 is rotatably connected to the double-ended cylindrical unlocking frame 12, which is slidably connected to the inner wall of the installation insertion chamber 3. The double-ended cylindrical unlocking frame 12 is rotatably connected to the double-ended telescopic rod 15, which is rotatably connected to the inner wall of the installation insertion chamber 3. The unlocking rod 14 is slidably connected to the inner wall of the double-ended cylindrical unlocking frame 12. On the wall, the positioning rod 18 is slidably connected to the inner wall of the installation insertion chamber 3. The positioning rod 18 is fixedly connected to the positioning spring 17, and the positioning spring 17 is fixedly connected to the fixing block 16. The fixing block 16 is fixedly installed on the inner wall of the installation insertion chamber 3. After the unlocking rod 14 is pushed, the position of the double-ended cylindrical unlocking frame 12 can be unlocked. The double-ended cylindrical unlocking frame 12 can then release the blocking insertion frame 6 and the fitting frame 22, so that the fitting frame 22 can dock with the fitting irregular docking frame 4, and the blocking insertion frame 6 can dock with the rectangular fixing frame 5.

[0035] The connecting mechanism includes a sliding frame 19 and a push rod 20. The sliding frame 19 is slidably connected to the inner wall of the installation insertion chamber 3. The sliding frame 19 is rotatably connected to the push rod 20 and the double-end telescopic rod 15. After the sliding frame 19 is driven to rotate, the sliding frame 19 can push the push rod 20, and the push rod 20 can activate the bonding frame 22, so that the bonding frame 22 can be bonded to the irregular docking frame 4, connecting the irregular docking frame 4 to the concrete frame beam 2.

[0036] The docking mechanism includes a fitting frame 22, a docking rod 23, a return spring 24, and a fixing plate 25. The fitting frame 22 cooperates with the installation insertion chamber 3. The fitting frame 22 is slidably connected to the docking rod 23. The docking rod 23 is fixedly connected to the return spring 24. The return spring 24 is fixedly connected to the fixing plate 25. The fixing plate 25 is in slidable contact with the fitting frame 22. After the docking rod 23 is fitted with the irregular docking frame 4, the docking rod 23 can position the irregular docking frame 4, so that the irregular docking frame 4 cannot be pulled out of the installation insertion chamber 3, thus enabling the concrete composite slab 1 and the concrete frame beam 2 to be accurately docked.

[0037] The inner side of the rectangular fixing frame 5 is provided with an insertion through hole. The outer side of the blocking insertion frame 6 slides in contact with the inner wall of the insertion through hole. The right side of the installation insertion chamber 3 is provided with a rectangular groove. After the blocking insertion frame 6 is inserted into the through hole, the blocking insertion frame 6 can prevent the rectangular fixing frame 5 from moving, thus achieving the positioning of the rectangular fixing frame 5.

[0038] The top of the double-ended cylindrical unlocking frame 12 is provided with a positioning groove. The bottom end of the positioning rod 18 slides in contact with the inner wall of the positioning groove. After the positioning rod 18 is inserted into the positioning groove, the positioning rod 18 can block the movement of the double-ended cylindrical unlocking frame 12, thereby achieving the positioning of the double-ended cylindrical unlocking frame 12.

[0039] A limiting block 21 is fixedly installed on the top of the sliding frame 19. The limiting block 21 is rotatably connected to the push rod 20. The limiting block 21 is used to connect the push rod 20 and the sliding frame 19, so that when the sliding frame 19 pushes the push rod 20 to rotate to the horizontal position, the limiting block 21 can fit with the push rod 20. When the sliding frame 19 moves again, it can drive the push rod 20 to move horizontally.

[0040] Working principle: When the concrete composite slab 1 is incorrectly installed and needs to be disassembled, taking the concrete frame beam 2 on the left side as an example, simply insert a tubular object into the inside of the concrete frame beam 2 on the left side. This will cause the tubular object to push the double-ended cylindrical unlocking bracket 12 to move to the right and stretch the tension spring 13. The tension spring 13 will then push the pressing rod 11 and drive the double-ended telescopic rod 15 to rotate counterclockwise. The pressing rod 11 will then press down on the mating bracket 9, which will first compress... The compressed spring 10 then drives the gear 8 to rotate counterclockwise. The gear 8 then drives the rack 7 and the blocking insertion bracket 6 to move to the left and disengage from the rectangular fixing bracket 5, thus unlocking the rectangular fixing bracket 5. Then, when the double-ended telescopic rod 15 rotates counterclockwise, the top of the double-ended telescopic rod 15 moves to the left, driving the sliding bracket 19 to move to the left. The sliding bracket 19 can push the push rod 20, causing the push rod 20 to push the fitting bracket 22 upward. An L-shaped groove is opened on the inner wall of the installation insertion chamber 3. Figure 3As shown in the diagram, the bonding frame 22 first moves upward along the L-shaped groove, and then drives the docking rod 23 and the fixing plate 25 to move upward. The initial state of the return spring 24 is compressed. The return spring 24 will push the mating rod downward to slide downward on the right side of the bonding frame 22. As the bonding frame 22 continues to move upward, it can drive the docking rod 23 to disengage from the irregular docking frame 4, thereby unlocking the irregular docking frame 4. At this time, the double-ended cylindrical unlocking frame 12 continues to move, and the positioning groove at the top of the double-ended cylindrical unlocking frame 12 and the positioning rod 1 With alignment 8, the initial state of the positioning spring 17 is also compressed. The positioning spring 17 can push the positioning rod 18 into the positioning groove. After the positioning rod 18 is inserted into the positioning groove, it can block the movement of the double-ended cylindrical unlocking frame 12, thus achieving positioning of the double-ended cylindrical unlocking frame 12 and continuously unlocking the concrete composite slab 1. When a new concrete composite slab 1 needs to be installed, the irregular docking frame 4 and the rectangular fixing frame 5 on the concrete composite slab 1 are inserted into the installation insertion chamber. Within 3, push the unlocking lever 14 upwards. The unlocking lever 14 drives the positioning lever 18 to release the double-ended cylindrical unlocking frame 12 and compress the positioning spring 17. The double-ended cylindrical unlocking frame 12 returns to its original position due to the springback of the tension spring 13. Then, the mounting frame 9 returns to its original position due to the springback of the compression spring 10, causing the gear 8 to reverse. The gear 8 drives the rack 7 and the blocking insertion frame 6 to insert into the insertion through hole on the rectangular fixing frame 5 and align with the rectangular groove on the installation insertion chamber 3. After the blocking insertion frame 6 is inserted into the through hole... The blocking insertion bracket 6 can block the movement of the rectangular fixing bracket 5, thus achieving the positioning of the rectangular fixing bracket 5. Then, the double-ended cylindrical unlocking bracket 12 drives the double-ended telescopic rod 15 to reset. The double-ended telescopic rod 15 then pulls the pulling rod, which in turn pulls the fitting bracket 22 to fit with the irregular docking bracket 4. The docking rod 23 engages with the irregular docking bracket 4 and compresses the reset spring 24, thus achieving the positioning of the irregular docking bracket 4. This enables precise docking and automatic positioning of the concrete composite slab 1 and the concrete frame beam 2, resulting in high connection strength.

[0041] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A connection structure between cast-in-place concrete frame beams and concrete composite slabs, comprising a concrete composite slab (1) and two concrete frame beams (2), characterized in that, Two concrete frame beams (2) are provided with symmetrically arranged installation insertion chambers (3). The left and right sides of the concrete composite slab (1) are fixedly installed with irregularly shaped docking frames (4). The bottom of the concrete composite slab (1) is fixedly installed with symmetrically arranged rectangular fixing frames (5). There are two rectangular fixing frames (5) and two irregularly shaped docking frames (4). The two irregularly shaped docking frames (4) and the two rectangular fixing frames (5) are in sliding contact with the inner wall of the installation insertion chamber (3). The installation insertion chamber (3) is provided with an unlocking mechanism, an insertion mechanism, a connecting mechanism and a docking mechanism. The docking mechanism cooperates with the irregularly shaped docking frame (4) and the connecting mechanism respectively. The connecting mechanism cooperates with the unlocking mechanism. The unlocking mechanism cooperates with the insertion mechanism. The insertion mechanism cooperates with the rectangular fixing frame (5). The insertion mechanism includes a blocking insertion frame (6), a rack (7), a gear (8), a mating frame (9), and a compression spring (10). The blocking insertion frame (6) is slidably connected to the inner wall of the installation insertion chamber (3). The blocking insertion frame (6) is fixedly connected to the rack (7). The rack (7) meshes with the gear (8). The gear (8) is rotatably connected to the front inner wall of the installation insertion chamber (3). The mating frame (9) is slidably connected to the inner wall of the installation insertion chamber (3). The mating frame (9) meshes with the gear (8). The mating frame (9) is fixedly connected to the return spring (24). The compression spring (10) is fixedly installed on the inner wall of the installation insertion chamber (3). The unlocking mechanism includes a push rod (11), a double-ended cylindrical unlocking frame (12), a tension spring (13), a double-ended telescopic rod (15), an unlocking rod (14), a fixing block (16), a positioning spring (17), and a positioning rod (18). The push rod (11) is rotatably connected to the double-ended cylindrical unlocking frame (12), and the double-ended cylindrical unlocking frame (12) is slidably connected to the inner wall of the installation insertion chamber (3). The double-ended cylindrical unlocking frame (12) is rotatably connected to the double-ended telescopic rod (15). Then, the double-ended telescopic rod (15) is rotatably connected to the inner wall of the installation insertion chamber (3), the unlocking rod (14) is slidably connected to the inner wall of the double-ended cylindrical unlocking frame (12), the positioning rod (18) is slidably connected to the inner wall of the installation insertion chamber (3), the positioning rod (18) is fixedly connected to the positioning spring (17), the positioning spring (17) is fixedly connected to the fixing block (16), and the fixing block (16) is fixedly installed on the inner wall of the installation insertion chamber (3); The connecting mechanism includes a sliding frame (19) and a push rod (20). The sliding frame (19) is slidably connected to the inner wall of the installation insertion chamber (3). The sliding frame (19) is rotatably connected to the push rod (20). The sliding frame (19) is rotatably connected to the double-ended telescopic rod (15). The docking mechanism includes a bonding frame (22), a docking rod (23), a reset spring (24), and a fixing plate (25). The bonding frame (22) cooperates with the installation insertion chamber (3). The bonding frame (22) is slidably connected to the docking rod (23). The docking rod (23) is fixedly connected to the reset spring (24). The reset spring (24) is fixedly connected to the fixing plate (25). The fixing plate (25) is in slid contact with the bonding frame (22). An insertion through hole is opened on the inner side of the rectangular fixing frame (5). The outer side of the blocking insertion frame (6) is in slid contact with the inner wall of the insertion through hole. A rectangular groove is opened on the right side of the installation insertion chamber (3). A positioning groove is opened on the top of the double-ended cylindrical unlocking frame (12). The bottom end of the positioning rod (18) is in slid contact with the inner wall of the positioning groove. A limit block (21) is fixedly installed on the top of the sliding frame (19). The limit block (21) is rotatably connected to the push rod (20).

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