A super-span floor temperature post-pouring zone early closing device

Abstract

The application relates to the technical field of floor post-pouring strip engineering, and discloses an ultra-large-span floor temperature post-pouring strip early closing device, which comprises a floor, a closing bottom plate arranged at the bottom of the floor, a closing top plate arranged at the top of the floor, a mounting component arranged at the top of the closing top plate, extrusion components arranged in the closing bottom plate and the closing top plate respectively, and a stabilizing component arranged at one end of the closing bottom plate and the closing top plate which are close to each other; the mounting component comprises a fixing rod, and the bottom of the fixing rod is fixedly connected with the top of the closing bottom plate. When the floor needs to be early closed for pouring, the closing bottom plate is installed at the bottom of the floor, the closing top plate is installed on the surface of the fixing rod through the round-hole rod at this time, when the closing top plate is in contact with the top of the floor, the threaded rod is twisted and rotated in the inner part of the sliding groove plate through the adjusting block, and the sliding plate is moved to the direction of the adjusting block through the rotation of the threaded rod.

Description

Technical Field

[0001] The invention relates to the technical field of floor slab post-cast strip engineering, in particular to an early sealing device for a super-large-span floor slab temperature post-cast strip. Background Art

[0002] The early sealing of floor slab temperature post-cast strips refers to the process of sealing the concrete surface for a period of time after concrete pouring to retain moisture and temperature, thereby improving the strength and quality of concrete. Post-cast strips are concrete strips of a certain width reserved in beams, slabs (including foundation slabs), walls and other structures and poured after a certain period of time to adapt to factors such as environmental temperature changes, concrete shrinkage, and uneven structural settlement. They can effectively absorb the differential settlement of various parts of large buildings during construction and use, and reduce cracking of beams, slabs, and beams;

[0003] After the current post-cast strip closing plate is installed, a support frame needs to be installed at the bottom to support it. However, when the post-cast strip is closed, multiple closing plates need to be installed on the floor slab. Support frames need to be installed at the bottom of the closing plates to support the closing plates. Installing the support frames takes a lot of time, which leads to slow installation efficiency of the closing plates. Summary of the Invention

[0004] The purpose of the present invention is to provide a device for early sealing of the temperature post-cast strip of an ultra-large span floor slab, so as to solve the problems raised in the above-mentioned background technology.

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a device for sealing a temperature post-cast strip of an ultra-large span floor slab in advance, comprising a floor slab, a closed bottom plate provided at the bottom of the floor slab, a closed top plate provided at the top of the floor slab, a mounting component provided at the top of the closed top plate, extrusion components provided inside the closed bottom plate and the closed top plate, and a stabilizing component provided at the end of the closed bottom plate and the closed top plate adjacent to each other;

[0007] The top of described sliding panel also is provided with an interlock plate, and the interlock plate is hinged on the base plate, is fixed with a backing pin on the interlock plate, and an end of sliding panel withstands on the backing pin of interlock plate.

[0008] Furthermore, one end of the threaded rod close to the adjustment block passes through the slide plate and extends to the outer end of the slide plate, the surface of the movable plate contacts the inner wall of the slide plate, and the inner wall of the slide plate contacts the surface of the slide plate.

[0009] Furthermore, the slide plate is symmetrically arranged with the slide plate as the center, the bottom of the slide plate contacts the top of the closed top plate, the bottom of the limit groove is connected to the positioning hole, and the lower surface of the roller extends to the inside of the positioning hole.

[0010] Furthermore, the top of the extrusion plate contacts the bottom of the roller, the extrusion plate extends to the inside of the positioning hole away from one end of the telescopic rod, the surface of the fixing rod contacts the inner wall of the round hole rod, the top of the fixing rod extends to the top of the closed top plate, the bottom of the round hole rod passes through the closed top plate and extends to the bottom of the closed top plate, and the through hole and the groove are connected to each other.

[0011] Furthermore, the extrusion component includes a triangular spring plate, the end of the triangular spring plate is sleeved with a connecting rod, the surface of the connecting rod is fixedly connected to a right-angle plate, the bottom of the right-angle plate is fixedly connected to a sliding frame, the end of the right-angle plate away from the sliding frame is fixedly connected to an inclined plate, the inner wall of the groove is fixedly connected to a limiting plate, the center of the triangular spring plate is hinged with a sliding rod, the end of the sliding rod away from the triangular spring plate is fixedly connected to a circular plate, the inner wall of the through hole is slidably connected to a sealing block, and the inner wall of the groove is provided with an extension groove.

[0012] Furthermore, the end of the sealing block away from the through hole contacts the surface of the floor slab, the surface of the inclined panel is extruded from the surface of the sealing block, the center of the triangular spring plate extends to the inside of the extension groove, and the end of the sliding rod away from the triangular spring plate passes through the extension groove and extends to the outer end of the closed top plate.

[0013] Furthermore, the inner wall of the sliding frame is slidably connected to the surface of the limit plate, and the number of the circular plates is set to four, and the four circular plates are arranged into two groups, and the number of each group is set to two, and the two groups of circular plates are located at one end where the closed top plate and the closed bottom plate are close to each other.

[0014] Furthermore, the stabilizing component includes a tripod, a center rod is hinged at the center of the tripod, a positioning plate is hinged at the end of the tripod, an end of the positioning plate away from the tripod is fixedly connected to a telescopic plate, an end of the telescopic plate away from the positioning plate is fixedly connected to a contact plate, and an end of the positioning plate away from the tripod is fixedly connected to a spring.

[0015] Furthermore, there are two tripods, which are symmetrically arranged with the positioning plate as the center. The ends of the two center rods that are away from each other are respectively connected to the ends of the closed top plate and the closed bottom plate that are close to each other. The end of the spring away from the positioning plate is fixedly connected to the surface of the contact plate, and the end of the contact plate away from the telescopic plate is in contact with the end of the floor slab.

[0016] The present invention has the following beneficial effects:

[0017] The cam is pressed against the top of the adjusting plate and the bottom plate is pressed against the adjusting plate, and the cam is pressed against the adjusting plate, and the cam is pressed against the adjusting plate, and the cam is pressed against the adjusting plate, and the cam is pressed against the adjusting plate, and the cam is pressed against the adjusting plate, and the cam is pressed against the adjusting plate, and the cam is pressed against the adjusting plate, and the cam is pressed against the adjusting plate, and the cam is pressed against the adjusting plate, and the cam is pressed against the adjusting plate, and the cam is pressed against the adjusting plate, and the cam is pressed against the adjusting plate,

[0018] When the closed top plate and the closed bottom plate of the present invention approach each other, they push the circular plate to contact, and the circular plate pushes the triangular spring plate to deform through the sliding rod. When the center of the triangular spring plate moves, the connecting rod pushes the inclined plate to squeeze the sealing block. The sealing block is squeezed and moves toward the outer end of the through hole to squeeze the floor plate, thereby further improving the sealing performance of the floor plate after closing.

[0019] When the closed top plate and the closed bottom plate of the present invention move toward each other, the center rod pushes the tripod to deform, and the end of the tripod pushes the spring to squeeze the contact plate through the positioning plate. After the contact plate is subjected to pressure, it will contact the end of the floor plate and squeeze the floor plate. The contact plate positions the closed top plate through the pressure with the floor plate, thereby improving the stability of the closed top plate and the closed bottom plate after installation.

[0020] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the cross-sectional structure of the closed top plate of the present invention;

[0024] Figure 3 This is a schematic diagram of the overall structure of the installation components of the present invention;

[0025] Figure 4 This is another structural schematic diagram of the installation component of the present invention;

[0026] Figure 5 This is a schematic diagram of the overall structure of the extruded component of the present invention;

[0027] Figure 6 For the present invention Figure 5 A magnified schematic diagram of part A in FIG;

[0028] Figure 7 This is another structural schematic diagram of the extrusion component of the present invention;

[0029] Figure 8 It is a schematic diagram of the overall structure of the stabilizing component of the present invention.

[0030] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0031] In the figure: 1. Closed top plate; 2. Closed bottom plate; 3. Floor plate; 4. Mounting part; 5. Extrusion part; 6. Stabilizing part; 10. Slide plate; 11. Through hole; 12. Groove; 13. Fixing rod; 14. Round hole rod; 15. Positioning hole; 16. Telescopic rod; 17. Extrusion plate; 18. Slide plate; 19. Inclined plate; 20. Adjusting block; 21. Limiting groove; 22. Roller; 23. Moving plate; 24. Threaded rod; 25. Round rod; 30. Connecting rod; 31. Inclined plate; 32. Extension groove; 33. Triangular spring plate; 34. Right-angle plate; 35. Sliding frame; 36. Limiting plate; 37. Sealing block; 38. Sliding rod; 39. Round plate; 50. Contact plate; 51. Center rod; 52. Triangle frame; 53. Spring; 54. Telescopic plate; 55. Positioning plate. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] See also Figures 1-8 As shown, the present invention is a device for sealing the temperature post-cast strip of an ultra-large span floor slab in advance, comprising a floor slab 3, a closed bottom plate 2 being provided at the bottom of the floor slab 3, a closed top plate 1 being provided at the top of the floor slab 3, a mounting component 4 being provided at the top of the closed top plate 1, extrusion components 5 being provided inside the closed bottom plate 2 and the closed top plate 1 respectively, and a stabilizing component 6 being provided at the end where the closed bottom plate 2 and the closed top plate 1 are close to each other;

[0034] The mounting member 4 includes a fixing rod 13, the bottom of the fixing rod 13 is fixedly connected to the top of the closed bottom plate 2, the top of the closed top plate 1 is fixedly connected to a round hole rod 14, the top of the closed top plate 1 is fixedly connected to the slide plate 10, the inner wall of the slide plate 10 is rotatably connected to a threaded rod 24, the end of the threaded rod 24 away from the slide plate 10 is fixedly connected to the adjusting block 20, the surface of the threaded rod 24 is threadedly connected to the movable plate 23, the top of the movable plate 23 is fixedly connected to the slide plate 18, the top of the slide plate 18 is fixedly connected to the telescopic rod 16, the top of the telescopic rod 16 is fixedly connected to the extrusion plate 17, the surface of the extrusion plate 17 is fixedly connected to the round rod 25, the surface of the round rod 25 is sleeved with an inclined plate 19, and the end of the inclined plate 19 away from the round rod 25 is hinged to the top of the slide plate 10, the upper surface of the fixing rod 13 is provided with a positioning hole 15, the inner wall of the fixing rod 13 is provided with a limiting groove 21, and the inner wall of the limiting groove 21 is rotatably connected to the roller 22. When the floor slab is cast in advance and the closed bottom plate 2 is installed at the bottom of the floor slab 3, the closed top plate 1 is installed on the surface of the fixed rod 13 through the round hole rod 14. When the closed top plate 1 contacts the top of the floor slab 3, the threaded rod 24 is twisted by the adjusting block 20 to rotate inside the slide plate 10. The movable plate 23 pushes the slide plate 18 to move in the direction of the adjusting block 20 through the rotation of the threaded rod 24. When the slide plate 18 moves, the connection between the telescopic rod 16 and the extrusion plate 17 pushes the extrusion plate 17 to move to the inside of the positioning hole 15. When the extrusion plate 17 moves, it squeezes the inclined plate 19 through the round rod 25 to squeeze the inclined plate 19. At this time, the top of the inclined plate 19 will tilt upward, and the inclined plate 19 pushes the telescopic rod 16 to extend when it tilts. When the telescopic rod 16 extends, it contacts the roller 22 and limits the extrusion plate 17. The interior of the closed top plate 1 and the closed bottom plate 2 are both provided with grooves 12, and the end at which the closed top plate 1 and the closed bottom plate 2 are close to each other is provided with a through hole 11.

[0035] One end of the threaded rod 24 close to the adjustment block 20 passes through the slide plate 10 and extends to the outer end of the slide plate 10 . The surface of the movable plate 23 contacts the inner wall of the slide plate 10 , and the inner wall of the slide plate 18 contacts the surface of the slide plate 10 .

[0036] The slide plate 18 is symmetrically arranged with the slide plate 10 as the center. The bottom of the slide plate 18 contacts the top of the closed top plate 1. The bottom of the limiting groove 21 is connected to the positioning hole 15. The lower surface of the roller 22 extends to the inside of the positioning hole 15.

[0037] The top of the extrusion plate 17 contacts the bottom of the roller 22. After the extrusion plate 17 is limited, the telescopic rod 16 extends to push the closed top plate 1 to move downward and squeeze the floor 3. At the same time, the extrusion plate 17 will push the closed bottom plate 2 upward through the fixing rod 13, so that the closed top plate 1 and the closed bottom plate 2 can be close to each other to squeeze the floor 3, thereby improving the sealing after the floor 3 is closed. The closed top plate 1 and the closed bottom plate 2 can be fixed by directly twisting the threaded rod 24, thereby improving the convenience of installation of the closed top plate 1 and the closed bottom plate 2. The end of the extrusion plate 17 away from the telescopic rod 16 extends to the inside of the positioning hole 15, and the surface of the fixing rod 13 contacts the inner wall of the round hole rod 14. The top of the fixing rod 13 extends to the top of the closed top plate 1, and the bottom of the round hole rod 14 passes through the closed top plate 1 and extends to the bottom of the closed top plate 1. The through hole 11 and the groove 12 are connected to each other.

[0038] The extrusion component 5 includes a triangular spring plate 33, the end of the triangular spring plate 33 is sleeved with a connecting rod 30, the surface of the connecting rod 30 is fixedly connected to a right-angle plate 34, the bottom of the right-angle plate 34 is fixedly connected to a sliding frame 35, the end of the right-angle plate 34 away from the sliding frame 35 is fixedly connected to the inclined plate 31, the inner wall of the groove 12 is fixedly connected to the limiting plate 36, the center of the triangular spring plate 33 is hinged with a sliding rod 38, the end of the sliding rod 38 away from the triangular spring plate 33 is fixedly connected to a circular plate 39, the inner wall of the through hole 11 is slidably connected to a sealing block 37, and the inner wall of the groove 12 is provided with an extension groove 32.

[0039] The end of the sealing block 37 away from the through hole 11 contacts the surface of the floor 3, and the surface of the inclined panel 31 is squeezed out from the surface of the sealing block 37. When the closed top plate 1 and the closed bottom plate 2 of the present invention approach each other, they push the circular plate 39 to contact, and the circular plate 39 pushes the triangular spring plate 33 to deform through the sliding rod 38. When the center of the triangular spring plate 33 moves, the inclined panel 31 is pushed by the connecting rod 30 to squeeze the sealing block 37. The sealing block 37 is squeezed and moves toward the outer end of the through hole 11 to squeeze the floor 3, further improving the sealing of the floor 3 after closing. The center of the triangular spring plate 33 extends to the inside of the extension groove 32, and the end of the sliding rod 38 away from the triangular spring plate 33 passes through the extension groove 32 and extends to the outer end of the closed top plate 1.

[0040] The inner wall of the sliding frame 35 is slidably connected to the surface of the limit plate 36. There are four circular plates 39, which are arranged in two groups, and each group has two circular plates. The two groups of circular plates 39 are located at one end where the closed top plate 1 and the closed bottom plate 2 are close to each other.

[0041] The stabilizing component 6 includes a tripod 52, a center rod 51 is hinged at the center of the tripod 52, a positioning plate 55 is hinged at the end of the tripod 52, an end of the positioning plate 55 away from the tripod 52 is fixedly connected to a telescopic plate 54, an end of the telescopic plate 54 away from the positioning plate 55 is fixedly connected to a contact plate 50, and an end of the positioning plate 55 away from the tripod 52 is fixedly connected to a spring 53.

[0042] There are two tripods 52, and the two tripods 52 are symmetrically arranged with the positioning plate 55 as the center. When the closed top plate 1 and the closed bottom plate 2 of the present invention move closer to each other, the center rod 51 pushes the tripod 52 to deform, and the end of the tripod 52 pushes the spring 53 to squeeze the contact plate 50 through the positioning plate 55. After the contact plate 50 is under pressure, it will contact the end of the floor 3 and squeeze the floor 3. The contact plate 50 positions the closed top plate 1 through the pressure with the floor 3, thereby improving the stability of the closed top plate 1 and the closed bottom plate 2 after installation. The ends of the two center rods 51 away from each other are respectively connected with the ends of the closed top plate 1 and the closed bottom plate 2 close to each other, and the end of the spring 53 away from the positioning plate 55 is fixedly connected to the surface of the contact plate 50, and the end of the contact plate 50 away from the telescopic plate 54 is in contact with the end of the floor 3.

[0043] When in use, if it is necessary to seal the floor slab in advance with a pouring strip, the closed bottom plate 2 is installed at the bottom of the floor slab 3. At this time, the closed top plate 1 is installed on the surface of the fixed rod 13 through the round hole rod 14. When the closed top plate 1 contacts the top of the floor slab 3, the threaded rod 24 is twisted by the adjusting block 20 to rotate inside the slide plate 10. The movable plate 23 pushes the slide plate 18 to move toward the direction of the adjusting block 20 through the rotation of the threaded rod 24. When the slide plate 18 moves, it pushes the extrusion plate 17 to move to the positioning hole 1 through the connection between the telescopic rod 16 and the extrusion plate 17. 5, the extrusion plate 17 squeezes the inclined plate 19 through the round rod 25 when it moves. At this time, the top of the inclined plate 19 will tilt upward. When the inclined plate 19 tilts up, it pushes the telescopic rod 16 to extend. When the telescopic rod 16 extends, it contacts the roller 22 and limits the extrusion plate 17. After the extrusion plate 17 is limited, the extension of the telescopic rod 16 will push the closed top plate 1 to move downward to squeeze the floor 3. At the same time, the extrusion plate 17 will push the closed bottom plate 2 upward through the fixed rod 13, so that the closed top plate 1 and the closed bottom plate 2 can be close to each other. The floor slab 3 is squeezed to improve the sealing performance of the floor slab 3 after being closed. The closed top plate 1 and the closed bottom plate 2 can be fixed by directly twisting the threaded rod 24, which improves the convenience of installing the closed top plate 1 and the closed bottom plate 2. When the closed top plate 1 and the closed bottom plate 2 are close to each other, the circular plate 39 is pushed to contact. The circular plate 39 pushes the triangular spring plate 33 to deform through the sliding rod 38. When the center of the triangular spring plate 33 moves, the connecting rod 30 pushes the inclined plate 31 to squeeze the sealing block 37. The sealing block 37 is squeezed toward the outer end of the through hole 11. The movement squeezes the floor slab 3, further improving the sealing of the floor slab 3 after closing. When the closed top plate 1 and the closed bottom plate 2 move closer to each other, the center rod 51 pushes the tripod 52 to deform, and the end of the tripod 52 pushes the spring 53 to squeeze the contact plate 50 through the positioning plate 55. After the contact plate 50 is under pressure, it will contact with the end of the floor slab 3 and squeeze the floor slab 3. The contact plate 50 positions the closed top plate 1 through the pressure with the floor slab 3, thereby improving the stability of the closed top plate 1 and the closed bottom plate 2 after installation.

[0044] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A device for sealing the temperature post-casting strip of an ultra-large span floor slab in advance, comprising a floor slab (3), characterized in that: A closed bottom plate (2) is provided at the bottom of the floor plate (3), a closed top plate (1) is provided at the top of the floor plate (3), a mounting component (4) is provided at the top of the closed top plate (1), extrusion components (5) are provided inside the closed bottom plate (2) and the closed top plate (1), and a stabilizing component (6) is provided at one end of the closed bottom plate (2) and the closed top plate (1) where they are close to each other; The mounting component (4) comprises a fixed rod (13), the bottom of the fixed rod (13) is fixedly connected to the top of the closed bottom plate (2), the top of the closed top plate (1) is fixedly connected to a round hole rod (14), the top of the closed top plate (1) is fixedly connected to a chute plate (10), the inner wall of the chute plate (10) is rotatably connected to a threaded rod (24), the end of the threaded rod (24) away from the chute plate (10) is fixedly connected to an adjustment block (20), the surface of the threaded rod (24) is threadedly connected to a movable plate (23), the top of the movable plate (23) is fixedly connected to a slide plate (18), the top of the slide plate (18) is fixedly connected to a telescopic rod (16), the top of the telescopic rod (16) is fixedly connected to an extrusion plate (17), the surface of the extrusion plate (17) is fixedly connected to a round rod (25), the surface of the round rod (25) is sleeved with an inclined plate (19), the end of the inclined plate (19) away from the round rod (25) is fixedly connected to the adjusting block (20), the surface of the threaded rod (24) is threadedly connected to the movable plate (23), the top of the movable plate (23) is fixedly connected to a slide plate (18), the top of the slide plate (18) is fixedly connected to a telescopic rod (16), the top of the telescopic rod (16) is fixedly connected to an extrusion plate (17), the surface of the extrusion plate (17) is fixedly connected to a round rod (25), the surface of the round rod (25) is sleeved with an inclined plate (19), and the end of the inclined plate (19) away from the round rod (25) is fixedly connected to the adjusting block (20). The fixing rod (13) is hinged to the top of the slide plate (10), and a positioning hole (15) is provided on the upper surface of the fixing rod (13). A limiting groove (21) is provided on the inner wall of the fixing rod (13). A roller (22) is rotatably connected to the inner wall of the limiting groove (21). A groove (12) is provided inside the closed top plate (1) and the closed bottom plate (2). A through hole (11) is provided at one end of the closed top plate (1) and the closed bottom plate (2) close to each other. The extrusion plate (17) The top of the fixing rod (13) contacts the bottom of the roller (22), the extrusion plate (17) extends to the inside of the positioning hole (15) away from one end of the telescopic rod (16), the surface of the fixing rod (13) contacts the inner wall of the round hole rod (14), the top of the fixing rod (13) extends to the top of the closed top plate (1), the bottom of the round hole rod (14) passes through the closed top plate (1) and extends to the bottom of the closed top plate (1), and the through hole (11) and the groove (12) are connected to each other.

2. The device for sealing the temperature post-cast strip of an ultra-large span floor slab in advance according to claim 1, characterized in that: One end of the threaded rod (24) close to the adjustment block (20) passes through the chute plate (10) and extends to the outer end of the chute plate (10), the surface of the movable plate (23) contacts the inner wall of the chute plate (10), and the inner wall of the slide plate (18) contacts the surface of the chute plate (10).

3. The device for sealing the temperature post-cast strip of an ultra-large span floor slab in advance according to claim 2, characterized in that: The slide plate (18) is symmetrically arranged with the slide plate (10) as the center, the bottom of the slide plate (18) contacts the top of the closed top plate (1), the bottom of the limiting groove (21) is connected to the positioning hole (15), and the lower surface of the roller (22) extends to the inside of the positioning hole (15).

4. The device for sealing the temperature post-cast strip of an ultra-large span floor slab in advance according to claim 3, characterized in that: The extrusion component (5) includes a triangular spring plate (33), the end of the triangular spring plate (33) is sleeved with a connecting rod (30), the surface of the connecting rod (30) is fixedly connected to a right-angle plate (34), the bottom of the right-angle plate (34) is fixedly connected to a sliding frame (35), the end of the right-angle plate (34) away from the sliding frame (35) is fixedly connected to an inclined plate (31), the inner wall of the groove (12) is fixedly connected to a limiting plate (36), the center of the triangular spring plate (33) is hinged with a sliding rod (38), the end of the sliding rod (38) away from the triangular spring plate (33) is fixedly connected to a circular plate (39), the inner wall of the through hole (11) is slidably connected to a sealing block (37), and the inner wall of the groove (12) is provided with an extension groove (32).

5. The device for sealing the temperature post-cast strip of an ultra-large span floor slab in advance according to claim 4, characterized in that: The end of the sealing block (37) away from the through hole (11) contacts the surface of the floor slab (3), the surface of the inclined panel (31) contacts the surface of the sealing block (37), the center of the triangular spring plate (33) extends to the inside of the extension groove (32), and the end of the sliding rod (38) away from the triangular spring plate (33) passes through the extension groove (32) and extends to the outer end of the closed top plate (1).

6. The device for sealing the temperature post-cast strip of an ultra-large span floor slab in advance according to claim 5, characterized in that: The inner wall of the sliding frame (35) is slidably connected to the surface of the limiting plate (36), and the number of the circular plates (39) is set to four. The four circular plates (39) are set to two groups, and the number of each group is set to two. The two groups of circular plates (39) are located at one end where the closed top plate (1) and the closed bottom plate (2) are close to each other.

7. The device for sealing the temperature post-cast strip of an ultra-large span floor slab in advance according to claim 6, characterized in that: The stabilizing component (6) comprises a tripod (52), a center rod (51) is hingedly connected to the center of the tripod (52), a positioning plate (55) is hingedly connected to the end of the tripod (52), an end of the positioning plate (55) away from the tripod (52) is fixedly connected to a telescopic plate (54), an end of the telescopic plate (54) away from the positioning plate (55) is fixedly connected to a contact plate (50), and an end of the positioning plate (55) away from the tripod (52) is fixedly connected to a spring (53).

8. The device for sealing the temperature post-cast strip of an ultra-large span floor slab in advance according to claim 7, characterized in that: There are two tripods (52), and the two tripods (52) are symmetrically arranged with the positioning plate (55) as the center. The ends of the two center rods (51) that are away from each other are hinged to the ends of the closed top plate (1) and the closed bottom plate (2) that are close to each other. The end of the spring (53) away from the positioning plate (55) is fixedly connected to the surface of the contact plate (50), and the end of the contact plate (50) away from the telescopic plate (54) is in contact with the end of the floor plate (3).

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