Profiled steel sheet edge sealing device

Abstract

The utility model provides an edge sealing device for a profiled steel sheet, which comprises an open plate type edge sealing plate matched with an open cavity and used for sealing the open cavity; and the first locking mechanism is arranged in the open plate type edge sealing plate and the open cavity and is used for fixing the open plate type edge sealing plate at the opening of the open cavity. An opening plate type edge sealing plate matched with each opening cavity is specially arranged at the opening of the opening cavity. In this way, edge sealing treatment on the profiled steel sheet is achieved. Therefore, the first profiled steel sheet longitudinal steel bars are prevented from being connected with the wall steel bars, holes do not need to be formed in the edge sealing plates, and in other words, holes do not need to be formed to avoid the connection of the first profiled steel sheet longitudinal steel bars and the outer wall embedded steel bars. Therefore, the waste of materials and working hours is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering equipment, in particular to a corrugated steel plate edge sealing device. Background Art

[0002] During the construction process, when pouring concrete for the corrugated steel plate concrete composite floor, the corrugated steel plate needs to be sealed at the edge. Usually, the middle part of the plate is sealed by overlapping to reduce pollution and resource waste caused by concrete leakage and improve the molding quality of the concrete plate.

[0003] However, additional edge sealing is required at the junction of the floor slab boundary and the wall. Traditional corrugated steel plate edge sealing devices usually use an L-shaped steel plate, but such edge sealing devices affect the connection between the plate reinforcement and the wall reinforcement, and require holes to be opened in the edge sealing plate to pass the reinforcement, which will cause a waste of materials and work time.

[0004] That is to say, the corrugated steel plate edge sealing device in the prior art has the problem of causing waste of materials and working hours. Utility Model Content

[0005] The utility model provides a corrugated steel plate edge sealing device to solve the above technical problems, thereby solving the problem of waste of materials and working hours caused by the corrugated steel plate edge sealing device.

[0006] The utility model provides a corrugated steel plate edge sealing device, which is used for edge sealing of the corrugated steel plate. The corrugated steel plate comprises:

[0007] a plurality of raised plate segments extending along a first direction and spaced apart along a second direction; and

[0008] Straight plate segments are respectively arranged on both sides of each raised plate segment;

[0009] Wherein, two adjacent raised plate segments share a straight plate segment, and the raised plate segment has an open cavity extending along the first direction;

[0010] The corrugated steel plate edge sealing device includes:

[0011] An open plate type edge sealing plate, which is adapted to the open cavity and is used to seal the open cavity; and

[0012] The first locking mechanism is arranged in the open plate type edge sealing plate and the open cavity, and is used for fixing the open plate type edge sealing plate at the opening of the open cavity.

[0013] In one embodiment, the first locking mechanism comprises:

[0014] A first return latch is arranged at one end of the opening plate-type edge sealing plate facing the opening cavity; and

[0015] The open-type corrugated steel plate buckle is arranged on the inner wall surface of the opening cavity, and the open-type corrugated steel plate buckle is engaged and matched with the first return-shaped latch.

[0016] In one embodiment, the first locking mechanism includes a plurality of first return pins arranged on the inner wall surface and a plurality of open-type corrugated steel plate buckles arranged on the open plate-type edge sealing plate, and the plurality of first return pins are snap-fitted with the plurality of open-type corrugated steel plate buckles in a one-to-one correspondence.

[0017] In one embodiment, the outer contour of the raised plate segment is a trapezoid extending along the first direction, and the opening cavity is a trapezoidal cavity extending along the first direction.

[0018] In one embodiment, the corrugated steel plate edge sealing device further comprises a first flange, which is flipped and arranged on two waists and an upper bottom of the open plate type edge sealing plate, and the first flange is inserted into the open cavity and fits against the inner wall surface of the open cavity.

[0019] In one embodiment, the projection structure of the raised plate segment on the first plane includes:

[0020] A first vertical plate extending along a third direction; and

[0021] A second vertical plate extending along the third direction and spaced apart from the first vertical plate in the second direction; and

[0022] A first inclined plate, one end of which is connected to one end of the first vertical plate; and

[0023] A second inclined plate, one end of which is connected to one end of the second vertical plate; and

[0024] A transverse plate extending along the second direction, one end of which is connected to the other end of the first inclined plate, and the other end of the transverse plate is connected to the other end of the second inclined plate;

[0025] The length of the transverse plate is greater than the horizontal distance between the first vertical plate and the second vertical plate, the central axis of the transverse plate is on the symmetry plane between the first vertical plate and the second vertical plate, and the first inclined plate and the second inclined plate are symmetrically arranged relative to the symmetry plane.

[0026] In one embodiment, the profiled steel plate edge sealing device comprises:

[0027] A closed-mouth edge-sealing board, which is adapted to the open cavity and is used to seal the open cavity; and

[0028] A second locking mechanism is provided in the closed plate type edge sealing plate and the open cavity, and is used to fix the closed plate type edge sealing plate at the opening of the open cavity;

[0029] Among them, the open plate type edge sealing plate is replaced by a closed plate type edge sealing plate, and the first locking mechanism is replaced by a second locking mechanism.

[0030] In one embodiment, the second locking mechanism comprises:

[0031] A second return latch is provided at one end of the closed plate-type edge sealing plate facing the open cavity; and

[0032] The closed-end corrugated steel plate buckle is arranged on the inner wall surface of the open cavity, and the closed-end corrugated steel plate buckle is engaged and matched with the second return-shaped latch.

[0033] In one embodiment, the second locking mechanism includes a plurality of second return pins arranged on the inner wall surface and a plurality of closed-end corrugated steel plate buckles arranged on the closed-end plate-type edge sealing plate, and the plurality of second return pins are snap-fitted with the plurality of closed-end corrugated steel plate buckles in a one-to-one correspondence.

[0034] Compared with the prior art, the utility model has the following beneficial effects: by specially arranging an opening plate-shaped edge sealing plate adapted to the opening of each opening cavity, the edge sealing treatment of the corrugated steel plate is realized. Thus, the connection between the longitudinal reinforcement of the first corrugated steel plate (plate reinforcement) and the wall reinforcement is avoided, and there is no need to open holes on the edge sealing plate, that is, there is no need to open holes to avoid the connection between the longitudinal reinforcement of the first corrugated steel plate and the embedded reinforcement of the exterior wall. Thus, the waste of materials and working hours is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the three-dimensional structure of the corrugated steel plate in the first embodiment of the utility model (showing the open plate type edge banding plate);

[0036] Figure 2 It is a three-dimensional structural schematic diagram of the corrugated steel plate in the second embodiment of the utility model (showing the closed plate type edge banding plate);

[0037] Figure 3 This is the edge sealing device of the corrugated steel plate in the third embodiment of the utility model;

[0038] Figure 4 for Figure 3 Schematic diagram of the assembly relationship between the first return type latch and the open type corrugated steel plate buckle;

[0039] Figure 5 This is the edge sealing device of the corrugated steel plate in the fourth embodiment of the utility model;

[0040] Figure 6 for Figure 5 Schematic diagram of the assembly relationship between the second return pin and the closed-end corrugated steel plate buckle.

[0041] In the figure: 10, raised plate section; 12, first vertical plate; 13, second vertical plate; 14, first inclined plate; 15, second inclined plate; 16, transverse plate; 17, first corrugated steel plate longitudinal reinforcement; 18, second corrugated steel plate longitudinal reinforcement; 19, corrugated steel plate transverse reinforcement; 20, straight plate section; 101, open plate type edge banding; 1021, first return latch; 1022, open type corrugated steel plate buckle; 103, first flange; 201, closed plate type edge banding; 2021, second return latch; 2022, closed type corrugated steel plate buckle; 203, second flange. DETAILED DESCRIPTION

[0042] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0043] Embodiment 1

[0044] like Figure 1 As shown, the utility model provides a corrugated steel plate, which includes a plurality of raised plate segments 10 and straight plate segments 20. The plurality of raised plate segments 10 are extended along a first direction and spaced apart along a second direction; the straight plate segments 20 are respectively arranged on both sides of each raised plate segment 10; two adjacent raised plate segments 10 share one straight plate segment 20, and the raised plate segment 10 has an open cavity extending along the first direction.

[0045] In the above arrangement, the corrugated steel plate is arranged into the above structure, which can improve the pouring quality of the corrugated steel plate concrete composite floor during concrete pouring, thereby better meeting the pouring requirements on site.

[0046] Specifically, Figure 1 As shown, in one embodiment, the outer contour of the raised plate segment 10 is a trapezoid extending along the first direction, and the opening cavity is a trapezoidal cavity extending along the first direction.

[0047] Specifically, Figure 1 As shown, in one embodiment, a first corrugated steel plate longitudinal reinforcement 17 (plate reinforcement) extending along a first direction is provided at the connection between the raised plate segment 10 and the straight plate segment 20 .

[0048] Specifically, Figure 1 As shown, in one embodiment, a corrugated steel plate transverse reinforcement 19 adapted to the edge profile of the raised plate section 10 is provided at the edge of the raised plate section 10 .

[0049] Specifically, Figure 1As shown, in one embodiment, the corrugated steel sheet includes four raised plate segments 10 and five straight plate segments 20. The four raised plate segments 10 are extended along the first direction and spaced apart along the second direction; the straight plate segments 20 are respectively arranged on both sides of each raised plate segment 10; two adjacent raised plate segments 10 share one straight plate segment 20, and the raised plate segment 10 has an open cavity extending along the first direction.

[0050] Embodiment 2

[0051] like Figure 2 As shown, the utility model provides a corrugated steel plate, which includes a plurality of raised plate segments 10 and straight plate segments 20. The plurality of raised plate segments 10 are extended along a first direction and spaced apart along a second direction; the straight plate segments 20 are respectively arranged on both sides of each raised plate segment 10; two adjacent raised plate segments 10 share one straight plate segment 20, and the raised plate segment 10 has an open cavity extending along the first direction.

[0052] In the above arrangement, the corrugated steel plate is arranged into the above structure, which can improve the pouring quality of the corrugated steel plate concrete composite floor during concrete pouring, thereby better meeting the pouring requirements on site.

[0053] Specifically, Figure 2 As shown, in one embodiment, the projection structure of the raised plate segment 10 on the first plane (the plane where the second and third direction straight lines are located) includes a first vertical plate 12, a second vertical plate 13, a first inclined plate 14, a second inclined plate 15 and a transverse plate 16. Among them, the first vertical plate 12 is extended along the third direction; the second vertical plate 13 is extended along the third direction and is spaced apart from the first vertical plate 12 in the second direction; one end of the first inclined plate 14 is connected to one end of the first vertical plate 12; one end of the second inclined plate 15 is connected to one end of the second vertical plate 13; the transverse plate 16 is extended along the second direction, one end of which is connected to the other end of the first inclined plate 14, and the other end of the transverse plate 16 is connected to the other end of the second inclined plate 15. The length of the transverse plate 16 is greater than the horizontal spacing between the first vertical plate 12 and the second vertical plate 13, the central axis of the transverse plate 16 is on the symmetry plane between the first vertical plate 12 and the second vertical plate 13, and the first inclined plate 14 and the second inclined plate 15 are symmetrically arranged relative to the symmetry plane.

[0054] Specifically, in one embodiment, the obtuse angle between the first vertical plate 12 and the first inclined plate 14 is in the range of 120° to 140°.

[0055] Specifically, in one embodiment, the obtuse angle between the second vertical plate 13 and the second inclined plate 15 is in the range of 120° to 140°.

[0056] Specifically, Figure 2As shown, in one embodiment, the corrugated steel sheet includes nine raised plate segments 10 and ten straight plate segments 20. The nine raised plate segments 10 are extended along the first direction and evenly spaced along the second direction. The straight plate segments 20 are respectively arranged on both sides of each raised plate segment 10; two adjacent raised plate segments 10 share one straight plate segment 20, and the raised plate segment 10 has an open cavity extending along the first direction.

[0057] Specifically, Figure 2 As shown, in one embodiment, the corrugated steel plate is formed by bending a whole steel plate, which can improve the overall structural strength of the corrugated steel plate and improve its manufacturing efficiency.

[0058] Specifically, Figure 2 As shown, in one embodiment, a second corrugated steel plate longitudinal reinforcement 18 (plate reinforcement) extending along a first direction is provided at the connection between the raised plate segment 10 and the straight plate segment 20 .

[0059] Embodiment 3

[0060] like Figure 3 As shown, the utility model provides a corrugated steel plate edge sealing device, which is used for the corrugated steel plate in the first embodiment, and includes an open plate type edge sealing plate 101 and a first locking mechanism. The open plate type edge sealing plate 101 is adapted to the open cavity and is used to seal the open cavity; the first locking mechanism is arranged in the open plate type edge sealing plate 101 and the open cavity, and is used to fix the open plate type edge sealing plate 101 at the opening of the open cavity.

[0061] In the above arrangement, an opening plate-shaped edge sealing plate 101 matching with the opening of each opening cavity is specially arranged. In this way, the edge sealing treatment of the corrugated steel plate is realized. Thus, the connection between the longitudinal reinforcement 17 of the first corrugated steel plate and the wall reinforcement is avoided, and it is not necessary to open a hole in the edge sealing plate, that is, it is not necessary to open a hole to avoid the connection between the longitudinal reinforcement 17 of the first corrugated steel plate and the embedded reinforcement of the outer wall. Thus, the waste of materials and working time is avoided.

[0062] Specifically, Figure 4 As shown, in one embodiment, the first locking mechanism includes a first return pin 1021 and an open-type corrugated steel plate buckle 1022. The first return pin 1021 is arranged at one end of the open plate-type edge banding plate 101 facing the open cavity; the open-type corrugated steel plate buckle 1022 is arranged on the inner wall surface of the open cavity, and the open-type corrugated steel plate buckle 1022 is engaged with the first return pin 1021.

[0063] Specifically, Figure 3As shown, in one embodiment, the first locking mechanism includes a plurality of first return pins 1021 arranged on the inner wall surface and a plurality of open-type corrugated steel plate buckles 1022 arranged on the open plate-type edge banding plate 101, and the plurality of first return pins 1021 are snap-fitted with the plurality of open-type corrugated steel plate buckles 1022 in a one-to-one correspondence.

[0064] Specifically, Figure 3 As shown, in one embodiment, the first locking mechanism includes three first return pins 1021 arranged on the inner wall surface and three open-type corrugated steel plate buckles 1022 arranged on the open plate type edge banding plate 101, and the three first return pins 1021 are snap-fitted with the three open-type corrugated steel plate buckles 1022 in a one-to-one correspondence.

[0065] Specifically, Figure 3 As shown, in one embodiment, the corrugated steel plate edge sealing device also includes a first flange 103, which is flipped and arranged on the two waists and the upper bottom of the open plate type edge sealing plate 101. The first flange 103 is inserted into the open cavity and fits with the inner wall surface of the open cavity.

[0066] Embodiment 4

[0067] like Figure 5 As shown, the utility model provides a corrugated steel plate edge sealing device, which is used for the corrugated steel plate in the second embodiment, and includes a closed plate type edge sealing plate 201 and a second locking mechanism. The closed plate type edge sealing plate 201 is adapted to the open cavity and is used to seal the open cavity; the second locking mechanism is arranged in the closed plate type edge sealing plate 201 and the open cavity, and is used to fix the closed plate type edge sealing plate 201 at the opening of the open cavity.

[0068] In the above arrangement, an opening plate-shaped edge sealing plate 101 matching with the opening of each opening cavity is specially arranged. In this way, the edge sealing treatment of the corrugated steel plate is realized. Thus, the connection between the longitudinal reinforcement 18 of the second corrugated steel plate and the wall reinforcement is avoided, and it is not necessary to open a hole in the edge sealing plate, that is, it is not necessary to open a hole to avoid the connection between the longitudinal reinforcement 18 of the second corrugated steel plate and the embedded reinforcement of the outer wall. Thus, the waste of materials and working hours is avoided.

[0069] Specifically, Figure 6 As shown, in one embodiment, the second locking mechanism includes a second return pin 2021 and a closed-end corrugated steel plate buckle 2022. The second return pin 2021 is arranged at one end of the closed-end plate-shaped edge banding plate 201 facing the opening cavity; the closed-end corrugated steel plate buckle 2022 is arranged on the inner wall surface of the opening cavity, and the closed-end corrugated steel plate buckle 2022 is engaged with the second return pin 2021.

[0070] Specifically, Figure 5As shown, in one embodiment, the second locking mechanism includes three second return pins 2021 arranged on the inner wall surface and three closed-end corrugated steel plate buckles 2022 arranged on the closed-end plate-type edge sealing plate 201, and the multiple second return pins 2021 are snap-fitted with the multiple closed-end corrugated steel plate buckles 2022 in a one-to-one correspondence.

[0071] Specifically, Figure 5 As shown, in one embodiment, it further includes a second flange 203, which is turned over and arranged on the outer edge of the closed plate type edge sealing board 201 except the bottom edge. The second flange 203 is inserted into the opening cavity and fits with the inner wall surface of the opening cavity.

[0072] It should be noted that the core of the utility model is to provide a corrugated steel plate edge sealing device, which is specially designed for sealing the corrugated steel plate wave crest (opening of the raised plate section 10) at the edge of the corrugated steel plate concrete composite floor slab. It aims to achieve effective sealing of the edge of the corrugated steel plate, ensure that the edge sealing plate is strictly in line with the shape of the corrugated steel plate wave crest, and achieve the sealing of the wave crest without interfering with the steel bars in the plate (without interfering with the connection between the first and second corrugated steel plate longitudinal steel bars and the pre-embedded steel bars of the exterior wall), thereby reducing concrete pollution and improving the molding quality of the floor slab.

[0073] The edge-sealing device of the corrugated steel plate comprises an open plate type edge-sealing plate 101 and a closed plate type edge-sealing plate 201. The open plate type edge-sealing plate 101 is a trapezoidal steel plate arranged along the edge of the corrugated steel plate, and is also provided with a first flange 103 and a first return-shaped latch 1021. The trapezoidal steel plate and the corrugated steel plate crest can be connected together through the return-shaped latch and the buckle on the corrugated steel plate to ensure a tight sealing effect. The closed plate type edge-sealing plate 201 is a plate type with a wide top and a narrow bottom, and is provided with a second flange 203 and a second return-shaped latch 2021 on both sides and the top, and is connected to the corrugated steel plate through the return-shaped latch and the buckle on the corrugated steel plate.

[0074] The advantages of this corrugated steel plate edge banding device include:

[0075] 1. Efficient sealing: The edge sealing plate strictly matches the wave crest shape of the corrugated steel plate, effectively sealing the wave crest to prevent concrete leakage and improve the sealing effect.

[0076] 2. Compatible with steel bar arrangement: The design of the edge sealing device does not interfere with the steel bar arrangement inside the corrugated steel plate, ensuring that the steel bars are not disturbed during the construction process.

[0077] 3. Reduce pollution: effectively seal the edges of corrugated steel plates, reduce concrete pollution, and improve the cleanliness of floor surfaces.

[0078] 4. Improve molding quality: The use of edge banding devices can maintain the quality of floor molding and ensure the flatness and consistency of the edges.

[0079] 5. Convenient construction: The edge banding device adopts snap-on connection, which is easy to install and can save construction time and workload.

[0080] By using the profiled steel plate edge sealing device of the utility model, efficient edge sealing can be achieved during the construction of the profiled steel plate concrete composite floor slab, thereby improving the construction efficiency and the molding quality.

[0081] In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0082] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as "up", "down", "left", "right", "front" and "back" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the present invention.

[0083] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0084] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims

1. A corrugated steel plate edge sealing device, It is characterized in that Used for edge sealing of corrugated steel sheet, the corrugated steel sheet comprises: a plurality of raised plate segments extending along a first direction and spaced apart along a second direction; and Straight plate segments, respectively arranged on both sides of each of the raised plate segments; Wherein, two adjacent raised plate segments share one straight plate segment, and the raised plate segment has an open cavity extending along the first direction; The profiled steel plate edge sealing device comprises: An open plate type edge sealing plate, which is adapted to the open cavity and is used to seal the open cavity; and The first locking mechanism is arranged in the open plate type edge sealing plate and the open cavity, and is used for fixing the open plate type edge sealing plate at the opening of the open cavity.

2. The corrugated steel sheet edge sealing device according to claim 1, It is characterized in that The first locking mechanism comprises: A first return-shaped latch is arranged on one end of the open plate-type edge sealing plate facing the open cavity; and an open-type corrugated steel plate buckle is arranged on the inner wall surface of the open cavity, and the open-type corrugated steel plate buckle is engaged with the first return-shaped latch.

3. The edge sealing device of the corrugated steel sheet according to claim 2, It is characterized in that The first locking mechanism includes a plurality of the first return pins arranged on the inner wall surface and a plurality of the open-type corrugated steel plate buckles arranged on the open plate-type edge sealing plate, and the plurality of the first return pins are snap-fitted with the plurality of the open-type corrugated steel plate buckles in a one-to-one correspondence.

4. The corrugated steel sheet edge sealing device according to claim 1, It is characterized in that The outer contour of the raised plate segment is a trapezoid extending along the first direction, and the open cavity is a trapezoidal cavity extending along the first direction.

5. The edge sealing device of the corrugated steel sheet according to claim 1, It is characterized in that The corrugated steel plate edge sealing device also includes a first flange, which is flipped and arranged on the two waists and the upper bottom of the open plate type edge sealing plate. The first flange is inserted into the open cavity and fits with the inner wall surface of the open cavity.

6. The edge sealing device of the corrugated steel sheet according to claim 1, It is characterized in that The projection structure of the raised plate segment on the first plane includes: A first vertical plate extending along a third direction; and A second vertical plate extending along the third direction and spaced apart from the first vertical plate in the second direction; and A first inclined plate, one end of which is connected to one end of the first vertical plate; and A second inclined plate, one end of which is connected to one end of the second vertical plate; and A transverse plate extending along the second direction, one end of which is connected to the other end of the first inclined plate, and the other end of the transverse plate is connected to the other end of the second inclined plate; Among them, the length of the horizontal plate is greater than the horizontal distance between the first vertical plate and the second vertical plate, the central axis of the horizontal plate is on the symmetry plane between the first vertical plate and the second vertical plate, and the first inclined plate and the second inclined plate are symmetrically arranged relative to the symmetry plane.

7. The edge sealing device of the corrugated steel sheet according to claim 6, It is characterized in that The profiled steel plate edge sealing device comprises: A closed plate type edge sealing plate, which is adapted to the open cavity and is used to seal the open cavity; and A second locking mechanism is disposed in the closed plate type edge sealing plate and the open cavity, and is used to fix the closed plate type edge sealing plate at the opening of the open cavity; Among them, the open plate type edge sealing board is replaced by the closed plate type edge sealing board, and the first locking mechanism is replaced by the second locking mechanism.

8. The edge sealing device of the corrugated steel sheet according to claim 7, It is characterized in that The second locking mechanism comprises: A second return latch is disposed at one end of the closed plate-type edge sealing plate facing the open cavity; and The closed-end corrugated steel plate buckle is arranged on the inner wall surface of the open cavity, and the closed-end corrugated steel plate buckle is engaged with the second return-shaped latch.

9. The edge sealing device of the corrugated steel sheet according to claim 8, It is characterized in that The second locking mechanism includes a plurality of second return pins arranged on the inner wall surface and a plurality of closed-end corrugated steel plate buckles arranged on the closed-end plate-type edge sealing plate, and the plurality of second return pins are snap-fitted with the plurality of closed-end corrugated steel plate buckles in a one-to-one correspondence.

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