Post-cast strip closed shaping cover plate

Abstract

The utility model relates to the technical field of constructional engineering, in particular to a post-cast strip closed shaping cover plate which comprises a gradient gap bridge plate connector, and a butt joint device and a first post-cast strip cover plate are fixedly connected to the front portion and the rear portion of the lower end of the gradient gap bridge plate connector respectively. Reinforcing devices are fixedly connected to the front end of the butt joint device and the rear end of the first post-cast strip cover plate in a penetrating and inserting mode, and a positioning clamping strip is fixedly connected to the middle of the front end of the first post-cast strip cover plate. Two sealing devices are fixedly connected to the upper end of the gradient gap bridge plate connector, the upper end of the post-cast strip cover plate I, the lower end of the gradient gap bridge plate connector and the lower end of the post-cast strip cover plate I; the reinforcing device comprises a reinforcing rib strip plate. According to the post-cast strip sealing shaping cover plate, effective sealing is achieved through accurate installation and flexible adjustment of the sealing device, the structural strength is enhanced through the reinforcing device, and the problems that a traditional cover plate is poor in sealing performance, low in strength and inconvenient to construct are solved.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and in particular to a standardized cover plate for sealing post-pouring strips. Background Technology

[0002] The standardized cover plate for sealing post-pouring strips is an important component used in building engineering to seal post-pouring strips in concrete structures. Its main function is to ensure the waterproofness, structural integrity, and ease of construction of the post-pouring strip area. Traditional post-pouring strip sealing cover plates are usually made of materials such as steel plates, wooden boards, or precast concrete slabs and are installed through simple splicing or fixing methods. However, in practical applications, traditional cover plates have the following problems.

[0003] The existing joint treatment between the cover plate and the concrete structure is not tight enough. Gaps are easily formed at the joint due to thermal expansion and contraction, construction errors or material aging. There is a lack of effective sealing measures. In addition, the existing cover plate material is not strong enough to withstand the construction load or external pressure in the post-pouring strip area, and is prone to deformation or cracking. Therefore, we have introduced a standardized cover plate for sealing post-pouring strips. Utility Model Content

[0004] The main purpose of this utility model is to provide a post-pouring strip sealing and shaping cover plate, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A type of sealed and shaped cover plate for post-pouring strips includes a sloped underbridge plate. A docking device and a post-pouring strip cover plate are fixedly connected to the lower front and lower rear parts of the sloped underbridge plate, respectively. A reinforcing device is inserted and fixedly connected to the front end of the docking device and the rear end of the post-pouring strip cover plate. A positioning clip is fixedly connected to the middle of the front end of the post-pouring strip cover plate. A sealing device is fixedly connected to the upper end of the docking device and the upper end of the post-pouring strip cover plate, and to the lower end of the docking device and the lower end of the post-pouring strip cover plate. Two sealing devices are provided.

[0007] The reinforcing device includes reinforcing ribs, and several reinforcing ribs are provided. Elastic cards two and elastic cards one are fixedly connected between several adjacent reinforcing ribs. A fixing strip is fixedly connected between several elastic cards two and several elastic cards one. Several reinforcing ribs on the rear side are all inserted and fixedly connected inside the post-pouring strip cover plate one.

[0008] Preferably, the docking device includes a second post-pouring strip cover plate, a slot is provided in the middle of the rear end of the second post-pouring strip cover plate, two positioning holes are provided in the upper rear part of the second post-pouring strip cover plate, and the two positioning holes are symmetrically distributed from left to right, and several pouring grooves are provided in the front end of the second post-pouring strip cover plate, and the second post-pouring strip cover plate is fixedly connected to the lower front part of the slope overpass plate.

[0009] By adopting the above technical solution: the pouring trough provides an installation position for the reinforcing ribs of the strengthening device, and the fixed connection between the slope overpass plate and the post-pouring strip cover plate ensures the stability of the overall structure and facilitates construction operations.

[0010] Preferably, the sealing device includes a sealing rubber plate, with positioning holes two at each of the four corners of the upper end of the sealing rubber plate, and a movable groove in the middle of the upper end of the sealing rubber plate. An adjusting component is slidably connected in the movable groove, and a fixing bolt is threadedly connected to the upper part of the outer surface of the adjusting component. Positioning bolts are threadedly connected to each of the four positioning holes two. The sealing rubber plate is threadedly fixed to the upper end of the post-pouring strip cover plate two and the upper end of the post-pouring strip cover plate one by the positioning bolts.

[0011] By adopting the above technical solution: positioning hole two and positioning bolt are used to fix the sealing rubber plate on the corresponding cover plate to ensure accurate sealing position; the movable groove provides sliding space for the adjustment component, which is convenient to adjust the sealing range according to actual needs; and the fixing bolt is used to lock the position of the adjustment component to ensure stable operation of the sealing device.

[0012] Preferably, the adjusting assembly includes a sliding plate, a movable rod fixedly connected to the right end of the sliding plate, a plurality of mounting holes 2 are formed on the upper part of the outer surface of the movable rod, a sleeve is sleeved on the outer surface of the movable rod, a plurality of mounting holes 1 are formed on the upper part of the outer surface of the sleeve, a sliding plate 2 is fixedly connected to the right end of the sleeve, a stop block is fixedly connected to the left end of the sliding plate and the right end of the sliding plate 2, and anti-slip pads are fixedly connected to the inner walls of the two stop blocks, and the sliding plate 1 is slidably connected to the left side of the movable groove.

[0013] By adopting the above technical solution: sliding plate one and sliding plate two can slide in the movable groove to adjust the sealing range; the movable rod and the sleeve cylinder cooperate to realize the telescopic adjustment.

[0014] Preferably, the positional dimensions of several mounting holes 2 and several mounting holes 1 are adapted to the positional dimensions of the fixing bolts. The movable rod is movably connected inside the sleeve, the sliding strip plate 2 is slidably connected to the right side of the movable groove, and the two stops are located on the left and right sides of the post-pouring strip cover plate 2, respectively.

[0015] By adopting the above technical solution: the matching of the mounting hole and the fixing bolt ensures that the adjustment component can be accurately positioned; the movable connection between the movable rod and the sleeve cylinder and the sliding of the sliding strip plate II in the movable groove enable flexible adjustment; and the stop blocks are located on both sides of the post-pouring strip cover plate II to enhance the sealing and wrapping performance of the sealing device on the post-pouring strip cover plate II.

[0016] Preferably, a plurality of the reinforcing ribs are distributed horizontally at equal intervals in the casting groove, and a plurality of elastic cards two and a plurality of elastic cards one are both of a side V-shaped structure, and the opening directions of the side V-shaped structures of elastic cards one and elastic cards two are opposite.

[0017] By adopting the above technical solution: the horizontally equidistant reinforcing ribs enhance the structural strength, and the side V-shaped structure and opposite opening direction of the elastic card make the connection between the reinforcing ribs more stable, better able to withstand external forces, and improve overall stability.

[0018] Preferably, the position and size of the card slot are adapted to the position and size of the positioning card strip.

[0019] By adopting the above technical solution, the docking device and the post-pouring strip cover plate can be accurately and tightly connected, which facilitates installation and improves construction efficiency.

[0020] Preferably, the second positioning hole on the sealing rubber plate is on the same axis as the corresponding positioning hole on the second and first post-pouring strip cover plates. Four positioning bolts are sequentially threaded into the second positioning hole and the corresponding positioning hole. The sealing rubber plate is tightly fitted to the upper ends of the second and first post-pouring strip cover plates.

[0021] By adopting the above technical solution, the coaxial positioning holes facilitate the installation of positioning bolts, ensuring accurate fixing of the sealing rubber plate and a tight fit to guarantee a good sealing effect.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. In this utility model, the sealing rubber plate is threadedly connected to the corresponding positioning hole on the second and first post-pouring strip cover plates by positioning bolts to ensure a tight fit and initially block debris. The adjustment component can be flexibly adjusted according to the actual width of the second post-pouring strip cover plate. The first and second sliding strip plates slide in the movable groove. The movable rod cooperates with the sleeve cylinder and is locked in position by fixing bolts. The anti-slip pads in the end blocks are tightly attached to the sides of the second post-pouring strip cover plate, effectively preventing the sealing device from shifting and ensuring that the post-pouring strip area always maintains a good sealing state during construction, greatly improving the waterproof performance.

[0024] 2. In this utility model, by setting a reinforcing device, several reinforcing ribs are distributed laterally at equal intervals in the pouring groove. Adjacent reinforcing ribs are connected by elastic clip one, elastic clip two, and fixing strips. The elastic clips have a side V-shaped structure with opposite opening directions, forming a stable connection system that significantly enhances the overall structural strength. Simultaneously, the rear reinforcing ribs are inserted and fixedly connected within the post-pouring strip cover plate one, further stabilizing the connection between the reinforcing device and the post-pouring strip cover plate one. This allows the cover plate to effectively withstand various loads during construction, reducing deformation and damage caused by stress and extending the service life of the cover plate.

[0025] 3. In this utility model, the slot at the middle of the rear end of the second post-pouring strip cover plate of the docking device is matched with the position and size of the positioning strip at the middle of the front end of the first post-pouring strip cover plate, which can realize precise and fast docking and installation, greatly simplifying the installation process and improving construction efficiency. The adjustable design of the sealing device can adapt to post-pouring strip cover plates of different widths, enhancing the versatility and flexibility of the device. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of a post-pouring strip sealing and shaping cover plate according to the present invention;

[0027] Figure 2 This is a schematic diagram of the docking device for a post-pouring strip sealing and shaping cover plate according to the present invention;

[0028] Figure 3 This is a schematic diagram of the reinforcing device for a post-pouring strip sealing and shaping cover plate according to the present invention;

[0029] Figure 4 This is a schematic diagram of the sealing device structure of a post-pouring strip sealing and shaping cover plate according to the present invention;

[0030] Figure 5 This is a schematic diagram of the adjustment component structure of a post-pouring strip sealing and shaping cover plate according to the present invention;

[0031] Figure 6 This is a detailed enlarged structural diagram of section A of the post-pouring strip sealing and shaping cover plate of this utility model;

[0032] Figure 7 This is a detailed enlarged structural diagram of section B of the post-pouring strip sealing and shaping cover plate of this utility model.

[0033] In the diagram: 1. Slope bridge slab connection; 2. Connecting device; 3. Reinforcing device; 4. Positioning clip; 5. Post-cast strip cover plate one; 6. Sealing device; 21. Post-cast strip cover plate two; 22. Positioning hole one; 23. Slot; 24. Casting groove; 31. Reinforcing rib plate; 32. Elastic clip one; 33. Fixing strip; 34. Elastic clip two; 61. Sealing rubber plate; 62. Movable groove; 63. Positioning hole two; 64. Positioning bolt; 65. Fixing bolt; 66. Adjusting component; 661. Sliding strip plate one; 662. Sliding strip plate two; 663. Stop block; 664. Anti-slip pad; 665. Movable rod; 666. Sleeve sleeve; 667. Mounting hole one; 668. Mounting hole two. Detailed Implementation

[0034] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0035] Please see Figure 1-7 This utility model provides a technical solution:

[0036] A type of sealed and shaped cover plate for post-pouring strip includes a sloped bridging plate 1. A docking device 2 and a post-pouring strip cover plate 5 are fixedly connected to the lower front and lower rear parts of the sloped bridging plate 1, respectively. A reinforcing device 3 is inserted and fixedly connected to the front end of the docking device 2 and the rear end of the post-pouring strip cover plate 5. A positioning clip 4 is fixedly connected to the middle of the front end of the post-pouring strip cover plate 5. A sealing device 6 is fixedly connected to the upper end of the docking device 2 and the upper end of the post-pouring strip cover plate 5, and two sealing devices 6 are provided.

[0037] In this embodiment, the reinforcing device 3 includes reinforcing ribs 31, and several reinforcing ribs 31 are provided. Elastic clips 2 34 and elastic clips 1 32 are respectively fixedly connected between several adjacent reinforcing ribs 31. A fixing strip 33 is fixedly connected between several elastic clips 2 34 and several elastic clips 1 32. Several reinforcing ribs 31 on the rear side are all inserted and fixedly connected within the post-pouring strip cover plate 1 5. The docking device 2 includes a post-pouring strip cover plate 21. A slot 23 is opened in the middle of the rear end of the post-pouring strip cover plate 21. The upper end of the post-pouring strip cover plate 21... The first part has two positioning holes 22, which are symmetrically distributed from left to right. The front end of the second post-pouring strip cover plate 21 has several pouring grooves 24. The second post-pouring strip cover plate 21 is fixedly connected to the lower front part of the slope overpass plate 1. Several reinforcing ribs 31 are distributed horizontally at equal intervals in the pouring grooves 24. Several elastic cards 24 and several elastic cards 12 are all of the side V-shaped structure, and the opening directions of the side V-shaped structures of elastic cards 12 and elastic cards 24 are opposite. The position and size of the slot 23 are adapted to the position and size of the positioning strip 4.

[0038] Through the above scheme, the reinforcement device 3 and the docking device 2 work together to greatly improve the performance of the post-pouring strip sealing and shaping cover plate. The post-pouring strip cover plate 21 in the docking device 2 is fixed to the front of the lower end of the slope overpass slab 1. Several pouring grooves 24 at its front end provide the installation foundation for the reinforcement device 3. Several reinforcing ribs 31 of the reinforcement device 3 are distributed horizontally at equal intervals in the pouring grooves 24. Adjacent reinforcing ribs 31 are connected by elastic clips 1 32, elastic clips 2 34 and fixing strips 33. Elastic clips 1 32 and elastic clips 2 34 have a side V-shaped structure and opposite opening directions. This unique design forms a stable connection system between the reinforcing ribs 31, enhancing the overall structural strength. At the same time, the rear reinforcing ribs 31 are interlocked and fixedly connected to the rear... Inside the post-pouring strip cover plate 5, the connection between the reinforcing device 3 and the post-pouring strip cover plate 5 is further stabilized. The slot 23 at the middle of the rear end of the docking device 2 is matched with the positioning strip 4 at the middle of the front end of the post-pouring strip cover plate 5, which can achieve precise and rapid docking and installation. By setting the reinforcing device 3, the load-bearing capacity of the post-pouring strip closed and shaped cover plate is improved, which can effectively withstand various loads during construction, reduce deformation and damage caused by stress, and extend the service life of the cover plate. Through the combination of the reinforcing rib plate 31, elastic card 1 32, elastic card 2 34 and fixing strip 33, the cover plate is given a certain degree of flexibility, which can adapt to a certain degree of displacement and vibration, reduce the impact of building settlement and other factors on the cover plate, and provide a strong guarantee for the efficient implementation of post-pouring strip protection work.

[0039] In this embodiment, the sealing device 6 includes a sealing rubber plate 61. Positioning holes 63 are formed at the four corners of the upper end of the sealing rubber plate 61. A movable groove 62 is formed in the middle of the upper end of the sealing rubber plate 61. An adjusting component 66 is slidably connected within the movable groove 62. A fixing bolt 65 is threadedly connected to the upper part of the outer surface of the adjusting component 66. Positioning bolts 64 are threadedly connected to the four positioning holes 63. The sealing rubber plate 61 is threadedly fixed to the upper end of the post-cast strip cover plate 21 and the upper end of the post-cast strip cover plate 5 by the positioning bolts 64. The adjusting component 66 includes a sliding strip plate 661. A movable rod 665 is fixedly connected to the right end of the sliding strip plate 661. Several mounting holes 668 are formed on the upper part of the outer surface of the movable rod 665. A sleeve 666 is sleeved on the outer surface of the movable rod 665. Several mounting holes 667 are formed on the upper part of the outer surface of the sleeve 666. A sliding strip plate 662 is fixedly connected to the right end of the sleeve 666. Both the left end of the first sliding strip 661 and the right end of the second sliding strip 662 are fixedly connected to a stop block 663. Anti-slip pads 664 are fixedly connected to the inner walls of both stop blocks 663. The first sliding strip 661 is slidably connected to the left side of the movable groove 62. The positions and dimensions of several mounting holes 668 and several mounting holes 667 are adapted to the positions and dimensions of the fixing bolts 65. The movable rod 665 is movably connected inside the sleeve 666. The second sliding strip 66... 2. The sliding connection is on the right side of the movable groove 62. The two stops 663 are located on the left and right sides of the post-pouring strip cover plate 21, respectively. The positioning hole 2 63 on the sealing rubber plate 61 is on the same axis as the corresponding positioning hole 1 22 on the post-pouring strip cover plate 21 and the post-pouring strip cover plate 5. The four positioning bolts 64 are sequentially threaded into the positioning hole 2 63 and the corresponding positioning hole 1 22. The sealing rubber plate 61 is tightly fitted to the upper end of the post-pouring strip cover plate 21 and the post-pouring strip cover plate 5.

[0040] Through the above scheme: the sealing rubber plate 61 serves as the main sealing component. Positioning bolts 64 pass through the positioning holes 63 at its four upper corners and are threadedly connected to the corresponding positioning holes 22 on the post-cast strip cover plate 21 and post-cast strip cover plate 5. Because the positioning holes 63 and 22 are on the same axis, the sealing rubber plate 61 can tightly fit against the upper ends of the post-cast strip cover plate 21 and post-cast strip cover plate 5, initially forming a sealing barrier to effectively block debris. The adjusting component 66 further enhances the sealing effect. Sliding strip plate 661 and sliding strip plate 662 slide on the left and right sides of the movable groove 62, respectively, and their positions can be flexibly adjusted according to the actual width of the post-cast strip cover plate 21. The movable rod 665 at the right end of sliding strip plate 661 is sleeved inside the sleeve cylinder 666, which is fixed to sliding strip plate 662. The mounting holes 668 on the outer surface of rod 665 and 667 on the outer surface of sleeve 666 are aligned with the fixing bolts 65. After adjustment to the appropriate position, tightening the fixing bolts 65 locks the position of the adjusting component 66. At this time, the stops 663 at both ends of sliding strip 661 and sliding strip 662 are located on the left and right sides of the post-pouring strip cover plate 21, respectively. The anti-slip pads 664 on the inner wall of the stops 663 are tightly fitted to the side of the post-pouring strip cover plate 21, further enhancing the sealing performance, preventing the sealing device 6 from shifting, and ensuring that the post-pouring strip area is always in a good sealing state during construction. The coordinated work of the sealing rubber plate 61 and the adjusting component 66, along with the adjustable design, can adapt to post-pouring strip cover plates of different widths, enhancing the versatility and flexibility of the device, reducing construction costs, and improving construction efficiency.

[0041] It should be noted that this utility model is a type of closed and shaped cover plate for post-pouring strips. During use, the slope bridging plate 1 serves as a connection and transition. The post-pouring strip cover plate 21 in the docking device 2 fixed at the lower front end is precisely docked with the positioning clip 4 fixed at the front center of the post-pouring strip cover plate 5 through the slot 23 in the middle of the rear end, achieving rapid positioning and installation. Several reinforcing ribs 31 in the reinforcing device 3 are distributed laterally at equal intervals in the pouring groove 24. Adjacent reinforcing ribs 31 are connected by elastic clips 32, elastic clips 34 and fixing strips 33 to enhance the overall structural strength. The rear reinforcing ribs 31 are interspersed in the post-pouring strip. Inside the cover plate 5, the sealing rubber plate 61 of the sealing device 6 is further stabilized. The sealing rubber plate 61 of the sealing device 6 is threadedly connected to the positioning hole 22 on the post-pouring strip cover plate 21 and the post-pouring strip cover plate 5 through the positioning bolt 64 and the positioning hole 23. It fits tightly against the upper end of both to prevent foreign objects from entering. The sliding strip plate 661 and the sliding strip plate 662 of the adjusting component 66 can slide in the movable groove 62. The position is adjusted by the fixing bolt 65 through the mounting hole 667 and the mounting hole 668. The anti-slip pad 664 on the inner wall of the stop block 663 fits tightly against the side of the post-pouring strip cover plate 21 to further enhance the sealing effect and ensure that the post-pouring strip is effectively protected during construction.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A post-cast strip sealing and shaping cover plate, comprising a slope overpass slab connecting (1), characterized in that: The lower front and lower rear parts of the slope overpass plate (1) are respectively fixedly connected to a docking device (2) and a post-pouring strip cover plate (5). The front end of the docking device (2) and the rear end of the post-pouring strip cover plate (5) are both fixedly connected to a reinforcing device (3). The middle of the front end of the post-pouring strip cover plate (5) is fixedly connected to a positioning clip (4). The upper end of the docking device (2) and the upper end of the post-pouring strip cover plate (5) are fixedly connected to the lower end of the docking device (2) and the lower end of the post-pouring strip cover plate (5). There are two sealing devices (6). The reinforcing device (3) includes reinforcing ribs (31), and there are several reinforcing ribs (31). Several adjacent reinforcing ribs (31) are respectively fixedly connected with elastic card two (34) and elastic card one (32). Several elastic card two (34) and several elastic card one (32) are fixedly connected together with a fixing strip (33). Several reinforcing ribs (31) on the rear side are all inserted and fixedly connected in the post-pouring strip cover plate one (5). The docking device (2) includes a post-pouring strip cover plate two (21). The post-pouring strip cover plate two (21) has a slot (23) in the middle of the rear end. The post-pouring strip cover plate two (21) has two positioning holes one (22) in the upper rear part. The two positioning holes one (22) are symmetrically distributed on the left and right. The post-pouring strip cover plate two (21) has several pouring grooves (24) in the front end. The post-pouring strip cover plate two (21) is fixedly connected to the lower front part of the slope overpass plate connecting (1).

2. The post-cast strip closure and formwork cover slab according to claim 1, characterized in that: The sealing device (6) includes a sealing rubber plate (61). The upper end of the sealing rubber plate (61) has four positioning holes (63) at the four corners. The upper end of the sealing rubber plate (61) has a movable groove (62) in the middle. An adjusting component (66) is slidably connected in the movable groove (62). A fixing bolt (65) is threaded on the upper part of the outer surface of the adjusting component (66). A positioning bolt (64) is threaded in each of the four positioning holes (63). The sealing rubber plate (61) is threadedly fixed to the upper end of the post-pouring strip cover plate two (21) and the upper end of the post-pouring strip cover plate one (5) by the positioning bolts (64).

3. The post-cast strip closure and formwork cover slab of claim 2, wherein: The adjustment component (66) includes a sliding plate (661), a movable rod (665) is fixedly connected to the right end of the sliding plate (661), a plurality of mounting holes (668) are opened on the upper part of the outer surface of the movable rod (665), a sleeve (666) is sleeved on the outer surface of the movable rod (665), a plurality of mounting holes (667) are opened on the upper part of the outer surface of the sleeve (666), a sliding plate (662) is fixedly connected to the right end of the sleeve (666), a stop block (663) is fixedly connected to the left end of the sliding plate (661) and the right end of the sliding plate (662), and an anti-slip pad (664) is fixedly connected to the inner wall of the two stops (663), and the sliding plate (661) is slidably connected to the left side of the movable groove (62).

4. The post-cast strip closure and formwork cover slab of claim 3, wherein: The positional dimensions of several mounting holes 2 (668) and several mounting holes 1 (667) are adapted to the positional dimensions of the fixing bolt (65). The movable rod (665) is movably connected inside the sleeve cylinder (666). The sliding strip plate 2 (662) is slidably connected to the right side of the movable groove (62). The two stops (663) are located on the left and right sides of the post-pouring strip cover plate 2 (21), respectively.

5. The post-cast strip closure and formwork cover slab of claim 1, wherein: Several reinforcing ribs (31) are distributed horizontally at equal intervals in the casting groove (24). Several elastic cards (34) and several elastic cards (32) are both side V-shaped structures, and the opening directions of the side V-shaped structures of elastic cards (32) and elastic cards (34) are opposite.

6. The post-cast strip closure and formwork cover slab of claim 1, wherein: The position and size of the slot (23) are adapted to the position and size of the positioning strip (4).

7. The post-cast strip closure and formwork cover slab of claim 2, wherein: The positioning hole 2 (63) on the sealing rubber plate (61) is on the same axis as the corresponding positioning hole 1 (22) on the post-pouring strip cover plate 2 (21) and the post-pouring strip cover plate 1 (5). The four positioning bolts (64) are sequentially threaded into the positioning hole 2 (63) and the corresponding positioning hole 1 (22). The sealing rubber plate (61) is tightly fitted to the upper end of the post-pouring strip cover plate 2 (21) and the post-pouring strip cover plate 1 (5).

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