Formwork structure for separating concrete with different strength grades at column-beam joints

Abstract

The invention discloses a formwork structure for separating concrete of different strength grades at column-beam joints, and mainly relates to the field of concrete construction. Comprising a beam formwork connected with a column formwork, the beam formwork comprises a bottom formwork and symmetrically-arranged side formworks, a fixing sleeve is arranged on the side formwork on one side, a supporting column is slidably connected into the fixing sleeve in the vertical direction, a connecting plate is arranged on the top of the supporting column, a plurality of embedded steel bars are arranged between the side formworks on the two sides, and a plurality of isolation baffles are arranged on the connecting plate. The isolation baffles are located between the adjacent embedded steel bars, and a plurality of position covering plates are slidably connected into the isolation baffles and used for filling gaps below the embedded steel bars. The method has the beneficial effects that the technical problem that large-area mixed flowing of concrete at the column-beam connecting joint is prone to occurring, and consequently the column side structural strength is affected can be solved, the number and range of concrete mixed flowing are reduced, the structural strength of the concrete on the two sides of the connecting joint is guaranteed, and the building construction quality is guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of concrete construction, and specifically to a formwork structure for separating concrete of different strength grades at the column-beam joint. Background Art

[0002] When concrete is poured, due to different structural strength requirements for columns and beams, different types of concrete are poured into the column formwork and the beam formwork. Moreover, the concrete on the column needs to extend a certain distance towards the beam, so a connection joint of two types of concrete will be formed on the beam. When the two types of concrete are poured simultaneously, they will be mixed at the connection joint. If too much of the low-strength concrete on the beam flows into the high-strength concrete in the column, it will significantly affect the strength of the concrete on the column side after curing, thus affecting the quality of building construction. In the prior art, there are also devices for isolating the concrete at the connection joint, but these devices are generally mesh structures and have poor isolation effects on the concrete on both sides of the connection joint. After the concrete is poured, large-scale mixing and flowing are still likely to occur, affecting the structural strength of the column structure after curing and reducing the quality of building construction. Summary of the Invention

[0003] The purpose of the present invention is to provide a formwork structure for separating concrete of different strength grades at the column-beam joint, which can solve the technical problem that the concrete at the column-beam connection joint is prone to large-area mixing and flowing, affecting the structural strength of the column side, realize the effective isolation of the concrete on both sides of the connection joint before initial setting, reduce the quantity and scope of concrete mixing and flowing, ensure the structural strength of the concrete on both sides of the connection joint, and ensure the quality of building construction.

[0004] To achieve the above object, the present invention is realized through the following technical solutions:

[0005] A formwork structure for separating concrete of different strength grades at the column-beam joint, including a beam formwork connected to the column formwork. The beam formwork includes a bottom formwork and symmetrically arranged side formworks. A fixed sleeve is provided on one of the side formworks. A support column is slidably connected vertically inside the fixed sleeve. A connecting plate is provided at the top of the support column. A plurality of embedded steel bars are provided between the two side formworks. A plurality of isolation baffles are provided on the connecting plate. The isolation baffles are located between adjacent embedded steel bars. A plurality of compensating plates are slidably connected inside the isolation baffles. The compensating plates are used to fill the gaps below the embedded steel bars. A power assembly for driving the plurality of compensating plates to slide synchronously is provided on the connecting plate. A rotating sleeve is rotatably connected to the top of the fixed sleeve. Limiting assemblies for cooperating with the support column are provided inside both the fixed sleeve and the rotating sleeve. A storage motor for driving the rotating sleeve to rotate is provided on one of the side formworks. A storage groove for cooperating with the isolation baffle is provided on the side formwork. After the support column slides upward into the rotating sleeve, under the action of the limiting assembly, the isolation baffle can rotate with the rotating sleeve to the upper part of the storage groove.

[0006] Further, the limiting assembly includes a plurality of limiting blocks provided on the support column and limiting grooves provided inside the fixed sleeve and the rotating sleeve. The limiting blocks are slidably connected to the limiting grooves.

[0007] Further, the circular array angle between adjacent limiting grooves is 90 degrees.

[0008] Further, a telescopic rod is provided on the side formwork. A fixed ring is provided at the movable end of the top of the telescopic rod. The support column is rotatably connected inside the fixed ring.

[0009] Further, a plurality of through sliding holes are provided inside the isolation baffle. The compensating plates are slidably connected in the sliding holes. The power assembly is arranged in the middle sliding hole. After the compensating plate in the middle sliding hole slides, it contacts the compensating plates in the two side sliding holes. A return spring is provided between the compensating plates in the two side sliding holes and the sliding holes.

[0010] Further, the power assembly includes a bidirectional screw rod rotatably connected in the middle sliding hole. A plurality of the bidirectional screw rods are connected by a synchronous belt. The compensating plates are symmetrically slidably connected in the middle sliding hole. A slider is fixedly connected to the side surface of the compensating plate. The two ends of the bidirectional screw rod respectively penetrate through the sliders on both sides and are threadedly connected to them.

[0011] Further, a rotating shaft and a power motor for driving the rotating shaft to rotate are provided on the connecting plate. The rotating shaft and one of the bidirectional screw rods are also connected by a synchronous belt.

[0012] Furthermore, a slot is provided on the inner wall of the side formwork, the filling plate is movably inserted into the slot, water stop strips are symmetrically arranged on the top of the bottom formwork, and the bottom of the isolation baffle is movably inserted between the water stop strips on both sides.

[0013] Furthermore, gears that mesh with each other are provided on the output shaft of the storage motor and the outer side of the rotating sleeve.

[0014] Furthermore, a plurality of cleaning bumps for cooperating with the isolation baffle are provided on the side wall of the storage groove.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. The structure of the present invention includes a fixed sleeve provided on the side formwork. A support column is slidably connected vertically inside the fixed sleeve. A connecting plate is provided at the top of the support column, and a plurality of isolation baffles are provided at the bottom of the connecting plate. The isolation baffles are located between adjacent embedded steel bars inside the beam formwork. When pouring concrete at the connection node, the support column is slid downward, driving the isolation baffles at the bottom of the connecting plate to be inserted downward into the area between two embedded steel bars, so as to effectively isolate the concrete of different models on both sides of the connection node, avoid large-scale mixed flow of the concrete on both sides after pouring, ensure that the structural strength of the concrete on both sides after curing meets the design requirements. At the same time, a plurality of filling plates are slidably connected inside the isolation baffle. The filling plates are used to fill the gaps below the embedded steel bars. The power assembly is used to drive the plurality of filling plates to slide synchronously. Such a structure enables the plurality of filling plates to slide synchronously after the plurality of isolation baffles are inserted, filling the gap positions below the embedded steel bars that cannot be reached by the isolation baffles, thereby further improving the comprehensiveness of isolation, further reducing the range of concrete mixed flow at the connection node, and further improving the isolation effect;

[0017] 2. A rotating sleeve is rotatably connected to the top of the fixed sleeve. Limiting components for cooperating with the support columns are provided inside both the fixed sleeve and the rotating sleeve. A storage groove for cooperating with the isolation baffle is provided on the side template. After the support column slides upward into the inside of the rotating sleeve, under the action of the limiting component, the isolation baffle can rotate with the rotating sleeve to the upper part of the storage groove. After such a structure is used up, the power component is used to drive a plurality of compensation plates to slide reversely into the isolation baffle, and then the connecting plate and the isolation baffle are pulled out upward. During this process, the support column slides upward along the fixed sleeve into the rotating sleeve, and then the storage motor is used to drive the rotating sleeve to rotate. Under the action of the limiting component, the support column rotates with the rotating sleeve, so that a plurality of isolation baffles at the bottom of the connecting plate rotate to the upper part of the storage groove, and then the connecting plate and the isolation baffle are slid upward to make them slide into the storage groove. At this time, the support column slides downward into the fixed sleeve, and under the action of the limiting component, the support column cannot continue to rotate, so that a plurality of isolation baffles at the bottom of the connecting plate are kept in the state of being stored in the storage groove, making the isolation baffle integrated with the side template, capable of being reused together with the side template after the side template is disassembled, improving the convenience of storage and movement of the device, being able to be recycled, reducing the use cost, and improving the convenience of disassembly and assembly operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] FIG Figure 1 is a three-dimensional structural diagram of the present invention.

[0019] FIG Figure 2 is a front view of the present invention.

[0020] FIG Figure 3 is a cross-sectional view of the present invention taken along the A-A direction in FIG Figure 2 .

[0021] FIG Figure 4 is a cross-sectional view of the present invention taken along the B-B direction in FIG Figure 3 .

[0022] FIG Figure 5 is a partial enlarged view of part C in FIG Figure 4 of the present invention.

[0023] FIG Figure 6 is a cross-sectional view of the present invention taken along the D-D direction in FIG Figure 3 of the present invention.

[0024] FIG Figure 7 is a partial enlarged view of part E in FIG Figure 6 of the present invention.

[0025] Reference numerals shown in the drawings:

[0026] 1. Column formwork; 2. Beam formwork; 3. Bottom formwork; 4. Side formwork; 5. Fixed sleeve; 6. Support column; 7. Connection plate; 8. Embedded steel bar; 9. Isolation baffle; 10. Replacement plate; 11. Rotating sleeve; 12. Storage motor; 13. Storage groove; 14. Limit block; 15. Limit groove; 16. Telescopic rod; 17. Fixed ring; 18. Slide hole; 19. Return spring; 20. Bi-directional screw; 21. Synchronous belt; 22. Slide block; 23. Rotating shaft; 24. Power motor; 25. Slot; 26. Waterstop strip; 27. Gear; 28. Cleaning bump. Detailed implementation manners

[0027] The following further elaborates the present invention in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by this application.

[0028] Refer to Figure 1 and Figure 2, the present invention relates to a formwork structure for separating concrete of different strength grades at the column-beam joint. The main structure includes a beam formwork 2 connected to a column formwork 1. Generally, both the column formwork 1 and the beam formwork 2 are made of metal or wood. The column formwork 1 extends vertically, and the beam formwork 2 extends horizontally. The connection between the two is fixed with bolts. The beam formwork 2 includes a bottom formwork 3 and symmetrically arranged side formworks 4. The two side formworks 4 on both sides and the bottom formwork 3 at the bottom form a beam formwork 2 structure with a U-shaped cross-section. Concrete is poured from the U-shaped opening at the top. When pouring the column formwork 1, it needs to extend a certain distance in the direction of the beam formwork 2, generally within the range of 50 - 100 centimeters. Therefore, the high-strength concrete of the column will form a connection joint with the low-strength concrete of the beam on the beam. A fixing sleeve 5 is fixed on one side of the side formwork 4 by welding or bolts. The fixing sleeve 5 extends vertically. A support column 6 is slidably connected vertically inside the fixing sleeve 5, making the support column 6 more stable when sliding vertically inside the fixing sleeve 5. The top of the support column 6 is fixed with a connecting plate 7 by welding or bolts. A plurality of embedded steel bars 8 are arranged between the two side formworks 4. Concrete is poured between the embedded steel bars 8, so that the solidified concrete is connected to the embedded steel bars 8, improving the structural strength of the column and beam. Generally, the embedded steel bars 8 are composed of multiple horizontal bars to form a steel cage structure. A plurality of isolation baffles 9 are fixed to the bottom of the connecting plate 7 by welding or integrally formed. The isolation baffles 9 are located between adjacent embedded steel bars 8. In such a structure, when the support column 6 slides vertically downward inside the fixing sleeve 5, it will drive a plurality of isolation baffles 9 to move downward under the connection of the connecting plate 7 until the isolation baffles 9 are inserted between adjacent embedded steel bars 8, thereby forming a barrier at the connection joint, preventing large-scale mixing flow of the concrete on both sides of the connection joint during pouring, thus ensuring the structural strength of the concrete on the column side and the beam side respectively, and ensuring the quality of concrete construction. The setting of the fixing sleeve 5 limits the position of the support column 6, making the connecting plate 7 and the plurality of isolation baffles 9 at its bottom remain in the current position and not prone to relative movement during the concrete pouring process, ensuring the stability of the concrete isolation operation at the connection joint. A plurality of compensation plates 10 are slidably connected inside the isolation baffle 9. The compensation plates 10 are used to fill the gap below the embedded steel bars 8. After the compensation plates 10 slide out of the isolation baffle 9, they are located below the embedded steel bars 8. Since the isolation baffle 9 is only inserted between the left and right embedded steel bars 8, there will be gaps between the upper and lower embedded steel bars 8. The compensation plates 10 slide horizontally and extend into the upper and lower embedded steel bars 8 to fill the gaps, thereby making the isolation of the concrete at the connection joint more comprehensive, further reducing the range of mixing flow of concrete of different grades, and ensuring that the structural strength of the concrete on both sides meets the design requirements. A power component for driving a plurality of compensation plates 10 to slide synchronously is provided on the connecting plate 7. The power component drives a plurality of compensation plates 10 to slide simultaneously after the isolation baffle 9 is inserted.Realize the synchronous filling of multiple void positions inside the beam formwork 2, greatly simplifying the steps of manual operation and improving the convenience of using the device;

[0029] The top of the fixed sleeve 5 is rotatably connected to the rotating sleeve 11 through a bearing. Limiting components for cooperating with the support column 6 are provided inside both the fixed sleeve 5 and the rotating sleeve 11. The limiting components inside the fixed sleeve 5 and the rotating sleeve 11 enable the support column 6 to only perform vertical sliding movement relative to the two. Since the fixed sleeve 5 is fixedly connected to the side formwork 4 and the rotating sleeve 11 is rotatably connected to the fixed sleeve 5, when the support column 6 is located inside the fixed sleeve 5, it can only perform vertical sliding movement and cannot rotate. This ensures that when the isolation baffle 9 is inserted downward between adjacent embedded steel bars 8, it will not rotate, guaranteeing the stability of the isolation structure. When the isolation baffle 9 is pulled out upward, the support column 6 slides upward into the rotating sleeve 11. At this time, the support column 6 can rotate together with the rotating sleeve 11, so that the connecting plate 7 and the isolation baffle 9 can be rotated to one side of the side formwork 4 for convenient storage without affecting the subsequent disassembly operation of the beam formwork 2. A storage motor 12 for driving the rotation of the rotating sleeve 11 is fixed to one side of the side formwork 4 by welding or bolts. Such a structure enables the automatic storage of the isolation baffle 9 after it is pulled out under the drive of the storage motor 12 to rotate the rotating sleeve 11, greatly simplifying the storage steps after the device is used and further improving the convenience of using the device. A storage groove 13 for cooperating with the isolation baffle 9 is fixed to the side formwork 4 by welding or bolts. The storage groove 13 has an open-top structure. After the support column 6 slides upward into the rotating sleeve 11, under the action of the limiting component, the isolation baffle 9 can rotate with the rotating sleeve 11 to the upper part of the storage groove 13. The compensating plate 10 slides into the inside of the isolation baffle 9. After the isolation baffle 9 is pulled out upward and driven by the storage motor 12, the rotating sleeve 11 drives the support column 6 to rotate, so that the connecting plate 7 and multiple isolation baffles 9 at its bottom rotate to the upper part of the storage groove 13. At this time, by pressing the connecting plate 7 downward, multiple isolation baffles 9 at the bottom of the connecting plate 7 can enter the storage groove 13 simultaneously for storage. At this time, under the action of the limiting component inside the fixed sleeve 5, the support column 6 cannot rotate relative to the fixed sleeve 5, keeping multiple isolation baffles 9 in the storage state inside the storage groove 13, making the device and the side formwork 4 integrated after storage, facilitating subsequent disassembly and reuse. When using again, reverse operation can be carried out to insert the isolation baffle 9 back into the beam formwork 2 to isolate the concrete at the connection node, greatly simplifying the disassembly and assembly operation steps and improving the convenience of subsequent movement and reuse.

[0030] Preferably, referring to Figure 6 and Figure 7, the limiting component includes a plurality of limiting blocks 14 arranged on the support column 6 and limiting grooves 15 arranged inside the fixed sleeve 5 and the rotating sleeve 11. The limiting blocks 14 are fixed on the side surface of the support column 6 by welding or integrally forming. The limiting grooves 15 are recessed inward from the inner walls of the fixed sleeve 5 and the rotating sleeve 11. The limiting blocks 14 are slidably connected with the limiting grooves 15. The multiple limiting grooves 15 are distributed in a circular array, so that after the rotating sleeve 11 rotates a certain angle, it can be aligned with the limiting groove 15 in the fixed sleeve 5 again, and the limiting block 14 on the support column 6 can slide vertically in the aligned limiting groove 15, so that the support column 6 can slide smoothly between the fixed sleeve 5 and the rotating sleeve 11, and at the same time maintain relative fixation in the lateral direction with both of them. The structure is simple and ensures the firmness of the structure of the support column 6.

[0031] Preferably, the circular array angle between adjacent limiting grooves 15 is 90 degrees, that is, the angle of each rotation of the rotating sleeve 11 is 90 degrees. Such a structure makes the storage groove 13 arranged parallel to the side surface of the side formwork 4. The isolation baffle 9 rotates 90 degrees from the state perpendicular to the beam formwork 2 to form a state parallel to the side formwork 4. At this time, it can be aligned with the storage groove 13 on the side surface of the side formwork 4, making the storage operation of the isolation baffle 9 more accurate and firm.

[0032] Preferably, a telescopic rod 16 is fixed on the side formwork 4 by welding or bolts. Specifically, an electric cylinder or a cylinder structure can be used. The movable end at the top of the telescopic rod 16 is fixed with a fixed ring 17 by welding or bolts. The support column 6 is rotatably connected to the inside of the fixed ring 17 through a bearing. Such a structure can drive the fixed ring 17 and the support column 6 to move up and down when the telescopic rod 16 performs telescopic movement. When moving upward so that the support column 6 completely enters the inside of the rotating sleeve 11, the storage motor 12 drives the rotating sleeve 11 to drive the support column 6 to rotate. The support column 6 rotates relative to the fixed ring 17, so that the rotated support column 6 and the isolation baffle 9 can still be connected to the telescopic rod 16 through the fixed ring 17. When the telescopic column contracts, it can drive the rotated support column 6 and the isolation baffle 9 to move downward, thus realizing the automatic rotation and storage of the isolation baffle 9. The structure is simple and the operation is convenient, greatly improving the convenience of disassembly and storage of the device.

[0033] Preferably, referring to Figure 3, a plurality of through sliding holes 18 are provided inside the isolation baffle 9. The sliding holes 18 penetrate through both sides of the isolation baffle 9 transversely. The supplementary plate 10 is slidably connected in the sliding holes 18, so that the supplementary plate 10 can slide into the sliding holes 18 to realize the storage of the supplementary plate 10, or slide out of the sliding holes 18 to fill the gap below the embedded steel bar 8. The power assembly is arranged in the middle sliding hole 18, and there are a plurality of sliding holes 18. After the supplementary plate 10 in the middle sliding hole 18 slides, it contacts the supplementary plates 10 in the sliding holes 18 on both sides. A return spring 19 is provided between the supplementary plates 10 in the sliding holes 18 on both sides and the sliding holes 18. Such a structure only needs to drive the supplementary plate 10 in the middle sliding hole 18 to slide. After the middle supplementary plate 10 slides out of the sliding hole 18, it fills the gap below the embedded steel bar 8, and enters the sliding holes 18 on both sides and contacts the supplementary plates 10 in the sliding holes 18 on both sides, and drives the supplementary plates 10 in the sliding holes 18 on both sides to continue sliding so as to fill the gaps below the embedded steel bars 8 on both sides. Such a structure greatly simplifies the complexity of the power assembly. Only by driving the supplementary plate 10 in the middle position to slide transversely can the plurality of supplementary plates 10 on both sides be driven to slide differently at the same time, improving the synchronism of the sliding movement of the supplementary plate 10 and reducing the number and cost of the power assembly.

[0034] Preferably, the power assembly includes a bidirectional screw 20 rotatably connected in the middle sliding hole 18 through a bearing. Threaded areas with opposite helix directions are provided on both sides of the bidirectional screw 20. A plurality of vertical bidirectional screws 20 are connected through a synchronous belt 21 to realize the synchronous rotation of the plurality of bidirectional screws 20. The supplementary plates 10 are symmetrically slidably connected in the middle sliding hole 18. A slider 22 is fixedly connected to the side surface of the supplementary plate 10 by welding or integrally forming. Both ends of the bidirectional screw 20 penetrate through the sliders 22 on both sides and are threadedly connected thereto. Such a structure can drive the sliders 22 on both sides to slide towards both sides simultaneously under the action of threaded connection when the bidirectional screw 20 rotates, so that the supplementary plates 10 simultaneously extend out of the sliding holes 18 on both sides and contact the supplementary plates 10 in the sliding holes 18 on both sides, further improving the convenience of the sliding movement of the supplementary plates 10 on both sides and realizing the rapid synchronous sliding of the supplementary plates 10 at multiple positions.

[0035] Preferably, referring to Figure 4 and Figure 5, a rotating shaft 23 and a power motor 24 for driving the rotation of the rotating shaft 23 are rotatably connected to the connecting plate 7 through bearings. Specifically, the rotating shaft 23 is connected to the output shaft of the power motor 24 by welding or bolts. The rotating shaft 23 is also connected to one of the bidirectional screws 20 through a synchronous belt 21. With such a structure, only the power motor 24 needs to drive the rotation of one of the bidirectional screws 20 through the synchronous belt 21, and then drive the synchronous rotation of multiple bidirectional screws 20 under the action of multiple synchronous belts 21, simplifying the complexity of the power assembly and improving the synchronism of the sliding movement of multiple compensation plates 10.

[0036] Preferably, a slot 25 is provided on the inner wall of the side formwork 4. The slot 25 is recessed inward from the inner wall of the side formwork 4. The compensation plate 10 is movably inserted into the slot 25. With such a structure, the compensation plate 10 at the edge slides out of the sliding hole 18 and then is movably inserted into the slot 25, so that the compensation plate 10 is more firmly fixed to the side formwork 4, making up for the gap between the side formwork 4 and the side wall, and improving the firmness of the isolation baffle 9 structure. On the top of the bottom formwork 3, water stop strips 26 are symmetrically fixed by welding or bolts. The bottom of the isolation baffle 9 is movably inserted between the two water stop strips 26. The two water stop strips 26 are provided to limit the position of the isolation baffle 9, filling the gap between the isolation baffle 9 and the bottom formwork 3, further improving the concrete isolation effect and the firmness of the isolation baffle 9.

[0037] Preferably, gears 27 that mesh with each other are fixed to the output shaft of the storage motor 12 and the outer side of the rotating sleeve 11 by welding or bolts. With such a structure, when the storage motor 12 rotates, it can drive the rotating sleeve 11 to rotate a specified angle under the meshing connection of the gears 27, so as to realize the automatic rotation and storage of the isolation baffle 9, and the rotation control of the rotating sleeve 11 is more accurate and efficient.

[0038] Preferably, a plurality of cleaning bumps 28 for cooperating with the isolation baffle 9 are fixed to the side wall of the storage groove 13 by welding or integrally forming. With such a structure, when the isolation baffle 9 is inserted into the storage groove 13, the cleaning bumps 28 on both sides can contact the side wall of the isolation baffle 9 to clean the residual concrete residues on it, thus ensuring the cleanliness of the surface of the isolation baffle 9, preparing for subsequent reuse, and improving the number of cycles and the effect of the isolation baffle 9 in recycling.

[0039] Working principle: The structure of the present invention includes a fixed sleeve 5 provided on the side formwork 4. A support column 6 is slidably connected vertically inside the fixed sleeve 5. A connecting plate 7 is provided at the top of the support column 6. A plurality of isolation baffles 9 are provided at the bottom of the connecting plate 7. The isolation baffles 9 are located between adjacent embedded steel bars 8 inside the beam formwork 2. When pouring concrete at the connection node with such a structure, the support column 6 is slid downward to drive the isolation baffles 9 at the bottom of the connecting plate 7 to be inserted downward into the area between two embedded steel bars 8, so as to effectively isolate the concrete of different models on both sides of the connection node, avoid large-scale mixing flow of the concrete on both sides after pouring, ensure that the structural strength of the concrete on both sides after curing meets the design requirements. At the same time, a plurality of compensation plates 10 are slidably connected inside the isolation baffle 9. The compensation plates 10 are used to fill the gap below the embedded steel bars 8. The power assembly is used to drive a plurality of compensation plates 10 to slide synchronously. Such a structure enables the plurality of compensation plates 10 to slide synchronously after the plurality of isolation baffles 9 are inserted, and fill the gap positions below the embedded steel bars 8 that cannot be reached by the isolation baffles 9, thereby further improving the comprehensiveness of isolation, further reducing the range of concrete mixing flow at the connection node, and further improving the isolation effect; A rotating sleeve 11 is rotatably connected to the top of the fixed sleeve 5. Limiting components for cooperating with the support column 6 are provided inside both the fixed sleeve 5 and the rotating sleeve 11. A storage groove 13 for cooperating with the isolation baffle 9 is provided on the side formwork 4. After the support column 6 slides upward into the inside of the rotating sleeve 11, under the action of the limiting component, the isolation baffle 9 can rotate with the rotating sleeve 11 to the upper part of the storage groove 13. After such a structure is used, the power assembly is used to drive a plurality of compensation plates 10 to slide reversely into the isolation baffle 9, and then the connecting plate 7 and the isolation baffle 9 are pulled out upward. During this process, the support column 6 slides upward along the fixed sleeve 5 into the rotating sleeve 11, and then the storage motor 12 is used to drive the rotating sleeve 11 to rotate. Under the action of the limiting component, the support column 6 rotates with the rotating sleeve 11, so that a plurality of isolation baffles 9 at the bottom of the connecting plate 7 rotate to the upper part of the storage groove 13, and then the connecting plate 7 and the isolation baffle 9 are slid upward to make them slide into the storage groove 13. At this time, the support column 6 slides downward into the fixed sleeve 5. Under the action of the limiting component, the support column 6 cannot continue to rotate, so that a plurality of isolation baffles 9 at the bottom of the connecting plate 7 are kept in the state of being stored in the storage groove 13, making the isolation baffle 9 integrated with the side formwork 4, capable of being reused together with the side formwork 4 after the side formwork 4 is disassembled, improving the convenience of storage and movement of the device, being able to be reused in a cycle, reducing the use cost, and improving the convenience of disassembly and assembly operations.

Claims

1. A formwork structure for separating concrete of different strength grades at a column-beam node, comprising a beam formwork (2) connected to a column formwork (1), wherein the beam formwork (2) comprises a bottom formwork (3) and symmetrically arranged side formworks (4), characterized in that: A fixing sleeve (5) is provided on the side formwork (4) on one side, a support column (6) is slidably connected in a vertical direction inside the fixing sleeve (5), a connecting plate (7) is provided on the top of the support column (6), a plurality of embedded steel bars (8) are provided between the side formworks (4) on both sides, a plurality of isolation baffles (9) are provided on the connecting plate (7), the isolation baffles (9) are located between adjacent embedded steel bars (8), a plurality of filling plates (10) are slidably connected inside the isolation baffles (9), the filling plates (10) are used to fill the gap below the embedded steel bars (8), and a plurality of filling plates (10) are driven on the connecting plate (7). (10) A synchronously sliding power component, wherein the top of the fixed sleeve (5) is rotatably connected to a rotating sleeve (11), and the interiors of the fixed sleeve (5) and the rotating sleeve (11) are both provided with a limiting component used in conjunction with the support column (6), wherein the side template (4) on one side is provided with a storage motor (12) for driving the rotating sleeve (11) to rotate, and the side template (4) is provided with a storage groove (13) used in conjunction with the isolation baffle (9), and after the support column (6) slides upward into the interior of the rotating sleeve (11), the isolation baffle (9) can rotate with the rotating sleeve (11) to the top of the storage groove (13) under the action of the limiting component.

2. A formwork structure for separating concrete of different strength grades at a column-beam node according to claim 1, characterized in that: The limiting assembly comprises a plurality of limiting blocks (14) arranged on the support column (6) and limiting grooves (15) arranged inside the fixed sleeve (5) and the rotating sleeve (11), and the limiting blocks (14) are slidably connected to the limiting grooves (15).

3. A formwork structure for separating concrete of different strength grades at a column-beam node according to claim 2, characterized in that: The circular array angle between adjacent limiting grooves (15) is 90 degrees.

4. A formwork structure for separating concrete of different strength grades at a column-beam node according to claim 1, characterized in that: The side template (4) is provided with a telescopic rod (16), the movable end at the top of the telescopic rod (16) is provided with a fixing ring (17), and the support column (6) is rotatably connected inside the fixing ring (17).

5. A formwork structure for separating concrete of different strength grades at a column-beam node according to claim 1, characterized in that: The isolation baffle (9) is provided with a plurality of sliding holes (18) passing therethrough, the replacement plate (10) is slidably connected in the sliding hole (18), the power assembly is arranged in the middle sliding hole (18), the replacement plate (10) in the middle sliding hole (18) contacts the replacement plates (10) in the sliding holes (18) on both sides after sliding, and a return spring (19) is arranged between the replacement plates (10) in the sliding holes (18) on both sides and the sliding holes (18).

6. A formwork structure for separating concrete of different strength grades at a column-beam node according to claim 5, characterized in that: The power assembly comprises a bidirectional screw (20) rotatably connected in a middle sliding hole (18), a plurality of the bidirectional screws (20) are connected via a synchronous belt (21), the replacement plate (10) is symmetrically slidably connected in the middle sliding hole (18), a sliding block (22) is fixedly connected to the side of the replacement plate (10), and two ends of the bidirectional screw (20) respectively penetrate through the sliding blocks (22) on both sides and are threadedly connected thereto.

7. A formwork structure for separating concrete of different strength grades at a column-beam node according to claim 6, characterized in that: The connecting plate (7) is provided with a rotating shaft (23) and a power motor (24) for driving the rotating shaft (23) to rotate. The rotating shaft (23) is also connected to one of the bidirectional screw rods (20) via a synchronous belt (21).

8. A formwork structure for separating concrete of different strength grades at a column-beam node according to claim 1, characterized in that: The inner wall of the side template (4) is provided with a slot (25), the filling plate (10) is movably plugged into the slot (25), the top of the bottom template (3) is symmetrically provided with water stop strips (26), and the bottom of the isolation baffle (9) is movably plugged between the water stop strips (26) on both sides.

9. A formwork structure for separating concrete of different strength grades at a column-beam node according to claim 1, characterized in that: The output shaft of the storage motor (12) and the outer side of the rotating sleeve (11) are both provided with gears (27) that mesh with each other.

10. A formwork structure for separating concrete of different strength grades at a column-beam node according to claim 1, characterized in that: The side wall of the storage groove (13) is provided with a plurality of cleaning protrusions (28) used in conjunction with the isolation baffle (9).

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