CN220868914U - Steel roof repairing monomer - Google Patents

Abstract

A steel roof repairing monomer. In the process of repairing or repairing the steel roof, the water leakage condition at the joint is not properly solved. According to the utility model, two edge multiple sealing plates are respectively and integrally connected to two sides of a strip-shaped roof plate along the length direction of the strip-shaped roof plate, one side of a plate body is connected with one side of the strip-shaped roof plate, a long-width blocking layer sheet is attached between the plate body and the outer wall of the strip-shaped roof plate, a short-width blocking layer sheet is attached to the outer wall of the other side of the plate body, a surrounding groove is formed among the outer wall of the plate body, the short-width blocking layer sheet and the long-width blocking layer sheet, when the edge multiple sealing plates are connected with a support on a purlin, the short-width blocking layer sheet and the long-width blocking layer sheet are respectively attached to two sides of the bottom of the support, when the edge multiple sealing plates are in a self-attaching state, a double-layer blocking structure is formed by attaching the short-width blocking layer sheet, and a water containing and guiding cavity is formed by surrounding the top end of the short-width blocking layer sheet and the surrounding groove.

Description

Steel roof repairing monomer

Technical Field

The utility model particularly relates to a steel roof repairing monomer.

Background

The building roof is used as the uppermost bearing and peripheral protecting structure of the building, the protecting effect and the vertical surface modeling effect of the building roof are important to the whole building, so that the light steel structure protecting system leaks water, and the light steel structure protecting system mainly has the effects of resisting the corrosion of wind, rain and snow and light radiation and heat radiation. Particularly, the roof with the special-shaped structure is particularly prominent.

Because of the characteristics of simple construction and difficult water leakage of the light steel structure roof, the light steel structure roof has quick popularization in recent years, and has the water seepage and leakage phenomena with different degrees if the engineering is improperly constructed and damaged, and has more places without water seepage of the common roof, but is more complex to maintain. Especially, the roof with special-shaped structure is prominent. In particular, when the profiled color steel sheet is used as the surface layer, the heat-insulating material is filled in the sandwich plate. When water leaks, the water leakage points of the roof board pass through the heat insulation layer and then reach the room, water flows through the heat insulation layer, and the water leakage places are mainly represented at the lap joint of the color steel plate and the root of the gutter. And water leakage occurs at the joint of the roof panel and the main body structure (referred to as a brick-concrete or concrete frame). The leakage point is relatively complex and is concentrated at the positions of the ventilating duct, the lighting window and the turning lap joint. The water leakage reasons of the roof are analyzed, and the water leakage reasons are mainly concentrated into the following:

The roof surface layer is directly damaged, and the color steel plate is punctured. Load is added on some roofs at will, so that purlines deform, and the roof plates deform and accumulate water. Roof boarding slope is less, causes the roofing rainwater to be unable in time to drain to the gutter. Some horizontal joints are not overlapped sufficiently, and rainwater can be blown into the heat insulation layer by wind along the horizontal joints under the condition of wind to generate water leakage.

The ridge plate is too narrow, the edge pressing interface is not tightly sealed, the iron sheet is deformed, and the sealing of the sealing material with few fixed points is not tightly sealed. The positions of the pipelines and the exhaust channels extending out of the roof are not proper, the flashing height around the pipelines and the exhaust channels is not enough, and the root treatment is not tight. The waterproof construction seal of the lighting window has defects. Corrosion damage occurs in the long-term repair, and the sealing material at the joint is aged and cracked. The roof is mainly characterized in that the roof is provided with reinforcing parts such as a gutter, a core drawing rivet, a self-tapping screw and the like, so that water leakage occurs on the roof.

Disclosure of utility model

In order to overcome the defects existing in the prior art, a steel roof repairing monomer is provided at present to solve the problems.

The utility model provides a steel roofing restoration monomer, including bar roof board and two marginal multiple closing plates, two marginal multiple closing plates are along the length direction of bar roof board respectively integrative connection in the both sides of bar roof board, every marginal multiple closing plate includes the board body, short range separation lamellar and long range separation lamellar, one side of board body is connected with one side of bar roof board, laminating has long range separation lamellar between the outer wall of board body and bar roof board, the laminating of opposite side outer wall of board body has short range separation lamellar, be formed with between the outer wall of board body, short range separation lamellar and the long range separation lamellar and enclose and close the groove, when marginal multiple closing plate is connected with the support on the purlin, short range separation lamellar and long range separation lamellar are close in the bottom both sides of support respectively, when marginal multiple closing plate is in from laminating the state, short range separation lamellar and long range separation lamellar are close respectively and are formed double-deck separation structure, the top of short range separation lamellar, the top of long range separation lamellar and enclose and close and are formed with and hold water to dredge the chamber.

The utility model has the beneficial effects that:

The utility model is used for the first construction or the second repair and repair, can be stably connected with the support on the purline, can intercept the overlap length according to specific design requirements, forms a self multi-position edge pasting connection structure by mutually matching the strip-shaped roof board and the two edge multiple sealing boards, and forms a bottom isolation waterproof structure between roof board joints.

Drawings

FIG. 1 is a schematic view of the front view of the present utility model in an expanded state;

FIG. 2 is a schematic perspective view of the present utility model;

FIG. 3 is a schematic diagram of the front view of the present utility model in use;

FIG. 4 is an enlarged schematic view of the structure shown at A in FIG. 3;

FIG. 5 is a schematic view of a first expanded configuration of an edge multiple seal plate;

FIG. 6 is a schematic view of a second expanded configuration of an edge multiple seal plate;

FIG. 7 is a state diagram of the use of the present utility model;

FIG. 8 is a schematic perspective view of the present utility model in a short-web state;

FIG. 9 is a schematic view of another perspective view of the present utility model in a short-web state;

FIG. 10 is a schematic perspective view of a stand;

fig. 11 is a use state diagram of the present utility model.

In the figure: 1-a strip roof panel; 2-edge multiple seal plates; 3-a plate body; 4-short barrier ply; 5-long barrier ply; 6-1-bilayer barrier structure; 6-2-water-receiving dredging cavity; 7-convex edges; 8-a first recess; 9-a second recess; 10-connecting nails; 11-a middle connecting hole; 12-edge connecting holes; 13-a first extrusion enclosing groove; 14-a second extrusion enclosing groove; 15-arranging a surrounding groove in the middle; 16-a first barrier monolith; 17-a second barrier monolith; 18-a noise reduction layer; 20-purlin; 20-1-supporting seat; 30-an existing roof panel; 40-steel roofing repairing monomers; 41-extension plate.

Detailed Description

Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model.

The first embodiment is as follows: in this embodiment, the steel roof repairing unit 40 includes the strip-shaped roof panel 1 and two edge multiple sealing plates 2, the edge multiple sealing plates 2 play a role of connection and can also play a role of blocking water drops or water flows into the steel roof, the two edge multiple sealing plates 2 are integrally connected to two sides of the strip-shaped roof panel 1 along the length direction of the strip-shaped roof panel 1 respectively, each edge multiple sealing plate 2 includes a plate body 3, a short-width blocking layer sheet 4 and a long-width blocking layer sheet 5, one side of the plate body 3 is connected with one side of the strip-shaped roof panel 1, a long-width blocking layer sheet 5 is attached between the outer walls of the plate body 3 and the strip-shaped roof panel 1, a short-width blocking layer sheet 4 is attached between the outer walls of the plate body 3 and the long-width blocking layer sheet 5, a middle-surrounding groove 15 is formed between the outer walls of the plate body 3, the short-width blocking layer sheet 4 and the long-width blocking layer sheet 5, when the edge multiple sealing plates 2 are connected with the supports 20-1 on the strip 20, the short-width blocking layer sheet 4 and the long-width blocking layer sheet 5 are attached between the top ends of the two sides of the support bodies 4 and the long-width blocking layer sheet 5, and the top ends of the long-width blocking layer sheet 4 are attached between the long-width blocking layer 4 and the top ends of the support bodies 4 and the long-width blocking layer 4 are formed respectively, and the top ends of the long-width blocking layer 4 and the top ends of the long-width blocking layer 4 and the long-width blocking layer 4 is attached between the top and the top ends and the long-width blocking layer 4 and the long-width blocking layer and the top layer is formed.

In this embodiment, the edge multiple sealing plate 2 is an elastic plate body, specifically may be a metal sheet, and specifically selects thickness and material model according to specific design requirements. The short-width barrier layer sheet 4 and the long-width barrier layer sheet 5 are sheet bodies made of the existing flexible waterproof material, and specifically are sheet bodies made of polyurethane elastic waterproof material, PVC waterproof material, rubber or other flexible waterproof materials, and the thickness is 2-5 mm. The short-width barrier layer sheet 4 and the long-width barrier layer sheet 5 are equal in length, the widths of the short-width barrier layer sheet 4 and the long-width barrier layer sheet 5 are different, the width of the long-width barrier layer sheet 5 is larger than the width of the short-width barrier layer sheet 4, the value range of the width of the long-width barrier layer sheet 5 is 5-10 cm, and the value range of the width of the short-width barrier layer sheet 4 is 2-4 cm.

The number and the size of the steel roof repairing monomers 40 in the embodiment are determined according to specific structural design requirements, the edge multiple sealing plates 2 of the steel roof repairing monomers 40 can be connected by nails after bending and attaching, meanwhile, the steel roof repairing monomers 40 can be buckled and wrapped on the support 20-1 of the purline 20 in a bending mode, when the edges of the steel roof repairing monomers 40 are connected with the support 20-1, water leakage caused by joints can be reduced, meanwhile, the strip-shaped roof plates 1 and the two edge multiple sealing plates 2 are matched with each other, the degree of wetting of the noise reduction layer 18 below the strip-shaped roof plates can be reduced, the noise reduction performance of the noise reduction layer 18 between the purline 20 and the steel roof repairing monomers 40 is durable, and the probability of occurrence of wetting is reduced.

The steel roof repairing unit 40 in the present embodiment can be used for the first construction, laying and installation of steel structure buildings, and can also be used for replacing corroded and damaged steel roofs.

In this embodiment, the structural form of the support 20-1 is the same as that of the existing metal support on the purline 20, and is a T-shaped structure, wherein a horizontal end in the T-shaped structure is a base, so as to be connected with the purline 20, and a vertical end in the T-shaped structure provides a connection position for edge connection of the steel roof repairing monomer 40.

The use modes of the edge multiple sealing plate 2 in the present utility model are mainly two:

In a straight-side edge connection mode, as shown in fig. 1, the edge multiple sealing plate 2 is in a vertical state and is directly in surface-to-surface joint with the adjacent existing roof board 30, and the effect of blocking water flow from two positions from top to bottom of the edge multiple sealing plate 2 is realized through the cooperation of the short-width blocking layer sheet 4 and the long-width blocking layer sheet 5.

The second is a bending connection mode, and is shown in fig. 2, the edge multiple sealing plate 2 is in a bending state, the position of the short-width blocking layer sheet 4 is bent, namely, the upper side of the plate body 3 with the short-width blocking layer sheet 4 on the edge multiple sealing plate 2 is bent and back bent to be attached to the top of the long-width blocking layer sheet 5, the position of the long-width blocking layer sheet 5 is bent to form an L-shaped sheet body, the L-shaped sheet body is used for multi-position enclosing blocking and waterproofing for the bottom of the edge multiple sealing plate 2 and the strip-shaped roof board 1, the short-width blocking layer sheet 4 and the long-width blocking layer sheet 5 are respectively attached tightly to form a double-layer blocking structure 6-1, a water containing and dredging cavity 6-2 is formed by enclosing between the top end of the short-width blocking layer sheet 4, the top end of the long-width blocking layer sheet 5 and the middle enclosing groove 15, and the water containing and dredging cavity 6-2 can be used for providing space for water containing and temporary draining for clamping supports 20-1.

The second embodiment is as follows: the present embodiment is further limited to the first embodiment, in which the strip-shaped roof panel 1 is formed with a rib 7 along the thickness direction thereof, and the longitudinal direction of the rib 7 is the same as the longitudinal direction of the strip-shaped roof panel 1. The longitudinal section shape of the rib 7 is 匚, and the processing of the rib 7 can enhance the tensile and compressive properties of the strip-shaped roof board 1 on one hand, and provide a dredging position for water flow on the other hand, so that the directional dredging process of the outer wall and the inner wall of the rib 7 can be realized.

And a third specific embodiment: in this embodiment, a plurality of connection nails 10 are disposed on each edge multiple sealing plate 2 in a matching manner, and the plurality of connection nails 10 are uniformly disposed along the length direction of the edge multiple sealing plate 2, so that the edge multiple sealing plate 2 on another adjacent steel roof repairing monomer 40 or the existing roof plate 30 is further connected to provide a connection position and a connection mode, the steel roof repairing monomers 40 formed by mutually matching the strip roof plate 1 and the two edge multiple sealing plates 2 can realize the through-nail connection, the connection strength between two adjacent steel roof repairing monomers 40 or between the adjacent existing roof plate 30 and the steel roof repairing monomer 40 can be enhanced, the connection strength between the steel roof repairing monomers 40 and the purlins 20 can be improved, the occurrence of large-area lifting caused by external force can be avoided, the occurrence probability of water leakage can be reduced under the condition of increasing the connection position, the bottom water flow blocking and water blocking and draining performances of each connection seam are ensured, the blocking and water draining performances are uniform, and the accidental probability of local leakage points is reduced.

The specific embodiment IV is as follows: the present embodiment is further defined as the first, second or third embodiment, wherein a plurality of first concave portions 8 are formed on a side of the short-width barrier layer sheet 4 facing the long-width barrier layer sheet 5, a plurality of second concave portions 9 are formed on a side of the long-width barrier layer sheet 5 facing the short-width barrier layer sheet 4, and the first concave portions 8 and the second concave portions 9 are disposed in one-to-one correspondence.

In this embodiment, the first recess 8 and the second recess 9 are both semicircular grooves, and when the edge of the present utility model is bent, the short-width barrier layer sheet 4 and the long-width barrier layer sheet 5 are respectively adhered to two sides of the bottom of the support 20-1, and the first recess 8 and the second recess 9 are coaxially arranged as penetrating providing positions of the connecting nails 10.

Fifth embodiment: this embodiment is further defined in the first, second, third or fourth embodiment, wherein a first extrusion enclosing groove 13 is disposed on a side of the short-width barrier layer sheet 4 facing the long-width barrier layer sheet 5, the first extrusion enclosing groove 13 is communicated with a middle enclosing groove 15, a second extrusion enclosing groove 14 is disposed on a side of the long-width barrier layer sheet 5 facing the short-width barrier layer sheet 4, the second extrusion enclosing groove 14 is communicated with the middle enclosing groove 15, a first barrier single sheet 16 is disposed on a groove bottom and inner walls of both side grooves of the first extrusion enclosing groove 13, and a second barrier single sheet 17 is disposed on a groove bottom and inner walls of both side grooves of the second extrusion enclosing groove 14.

In this embodiment, the first blocking piece 16 is shaped like a groove or a spade, and is used for wrapping and covering the groove bottom and the inner walls of the grooves on both sides of the first extrusion enclosing groove 13, one end is sealed, the other end is opened, and the same as the shape of the second blocking piece 17.

In this embodiment, the first barrier single sheet 16 is integrally formed with the short-width barrier layer sheet 4 and is disposed on the panel body 1, so that the continuous sealing effect is enhanced, and the influence of excessive seams on the sealing barrier performance is avoided. Similarly, the second blocking single sheet 17 is integrally formed with the long blocking layer sheet 5 and is arranged on the plate body 1, so that the continuous sealing effect is enhanced, and the influence on the sealing and blocking performance due to excessive seams is avoided.

In this embodiment, the processing of the first extrusion enclosing groove 13 and the second extrusion enclosing groove 14 provides a double-sided stable clamping structure for the clamping support 20-1, which is beneficial to being tightly attached to two sides of the support 20-1, and meanwhile, the arrangement of the first blocking single piece 16 and the second blocking single piece 17 assists the first extrusion enclosing groove 13 and the second extrusion enclosing groove 14 to provide a stable bottom sealing water blocking effect when being attached to two sides of the support 20-1.

Further, the first barrier monolith 16 and the second barrier monolith 17 are made of the same material as the short barrier layer sheet 4 and the long barrier layer sheet 5.

Specific embodiment six: the present embodiment is further defined in the first embodiment, the second embodiment, the third embodiment, the fourth embodiment or the fifth embodiment, at least one first concave portion 8 is provided in the first extrusion enclosing groove 13, the portion provides a position for the middle connecting hole 11 processed on the steel roof repairing monomer 40, when the middle connecting hole 11 is processed, the middle connecting hole 11 corresponds to the connecting hole on the support 20-1, the two connecting holes are coaxially arranged, and when the middle connecting hole 11 is processed, only the hole taking is needed to be performed at the position or above the first concave portion 8.

At least one second concave part 9 is arranged in the second extrusion enclosing groove 14, the part provides a position for a middle connecting hole 11 which is processed on the steel roof repairing monomer 40, when the middle connecting hole 11 is processed, the middle connecting hole 11 is correspondingly provided with a connecting hole on the support 20-1, the two connecting holes are coaxially arranged, and when the middle connecting hole 11 is processed, only the hole taking is needed to be carried out at the position or above the second concave part 9. Further, the edge multiple sealing plate 2 is provided with edge connecting holes 12 along the thickness direction thereof, the structural form of the edge connecting holes 12 is the same as that of the middle connecting holes 11, a pair of middle connecting holes 11 and two pairs of edge connecting holes 12 are correspondingly arranged on the support 20-1 at the non-edge position, namely, each side of the support 20-1 is correspondingly provided with one middle connecting hole 11 and two edge connecting holes 12, and the middle connecting holes 11 are arranged between the two edge connecting holes 12 to realize a three-point penetrating and fixing mode. A pair of central connecting holes 11 and a pair of edge connecting holes 12 are correspondingly arranged on the support 20-1 at the edge position, namely, each side of the support 20-1 is correspondingly provided with a central connecting hole 11 and an edge connecting hole 12, and one edge connecting hole 12 is arranged beside the central connecting hole 11, so that a two-point penetrating and fixing mode is realized.

Seventh embodiment: the present embodiment is further defined in the first, second, third, fourth, fifth or sixth embodiment, wherein an extension plate 41 is provided at one end of the steel roofing repairing unit 40, specifically, one end of the strip-shaped roof board 1 is integrally connected with the extension plate 41, and the extension plate 41 is disposed below the ridge cover plate in a penetrating manner, so as to enhance the connection strength with the ridge cover plate.

Eighth embodiment: the present embodiment is further defined in the first, second, third, fourth, fifth, sixth or seventh embodiment, and when the edge multiple sealing plate 2 is in the self-attaching state, one first recess 8 of the short barrier layer sheet 4 and the second recess 9 of the corresponding long barrier layer sheet 5 are coaxially disposed to form a lower support type penetration half hole of the mating connecting nail 10. The lower support type cross-connection half hole is a half hole type blocking structure.

Detailed description nine: the present embodiment is further defined by the first, second, third, fourth, fifth, sixth, seventh or eighth embodiment, wherein the longitudinal section of the water-receiving and dredging cavity 6-2 along the thickness direction of the edge multiple sealing plate 2 is in a drop shape, the small end of the drop shape is communicated with the top end of the double-layer blocking structure 6-1, and the drop shape is more beneficial to centralized water collection and drainage.

The utility model can repair and replace single position on the steel roof, and can also replace continuous position.

In the use process of the utility model, when the repairing unit is used for repairing the position between two existing roof boards 30, two edge multiple sealing plates 2 of a steel roof repairing unit 40 are respectively connected with the edges of the existing roof boards 30 close to the edge multiple sealing plates, the upper sides of the edge multiple sealing plates 2 are buckled on the edges of the existing roof boards 30 and the supports 20-1 through bending, the top ends of the short-width separation layers 4, the top ends of the long-width separation layers 5 and the water containing drainage cavities 6-2 formed by surrounding between the middle surrounding grooves 15 wrap the edges of the existing roof boards 30 and the two sides of the supports 20-1, namely, the edges of the existing roof boards 30 and the supports 20-1 are clamped in the edge multiple sealing plates 2, further connection is realized through penetrating of connecting nails 10, the upper and lower adhesion effects are realized after the edges of the edge multiple sealing plates 2 are bent, the top part realizes the process of strengthening the connection strength, and the bottom realizes the adhesion sealing effect.

In the use process of the utility model, when the repairing position is at the edge position of the steel roof, one edge multiple sealing plate 2 of the steel roof repairing monomer 40 is connected with the edge of one existing roof plate 30 close to the edge multiple sealing plate, and the other edge multiple sealing plate 2 of the steel roof repairing monomer 40 is connected with a plurality of supports 20-1 close to the edge multiple sealing plate.

The upper side of the edge multiple sealing plate 2 is buckled on the edge of the existing roof plate 30 and the support 20-1 through bending, a water containing drainage cavity 6-2 formed by enclosing between the top end of the short-width barrier layer sheet 4, the top end of the long-width barrier layer sheet 5 and the middle enclosing groove 15 wraps the edge of the existing roof plate 30 and the two sides of the support 20-1, namely the edge of the existing roof plate 30 and the support 20-1 are clamped in the edge multiple sealing plate 2, further connection is realized through penetrating of the connecting nails 10, the effect of simultaneously pasting up and down after the edge of the edge multiple sealing plate 2 is bent is realized, the effect of strengthening the connection strength is realized at the top, and the effect of pasting and sealing is realized at the bottom;

The other edge multiple sealing plate 2 of the steel roof repairing monomer 40 is wrapped on two sides of a plurality of supports 20-1 by a water containing dredging cavity 6-2 formed by enclosing among the top end of a short-width blocking layer sheet 4, the top end of a long-width blocking layer sheet 5 and a middle enclosing groove 15, namely, each support 20-1 is clamped in the edge multiple sealing plate 2 and is further connected through penetrating of a connecting nail 10, when the edge multiple sealing plate 2 part between the two supports 20-1 is in a self-attaching state, the short-width blocking layer sheet 4 and the long-width blocking layer sheet 5 are respectively attached to form a double-layer blocking structure 6-1, further connection is realized through penetrating of the connecting nail 10, and then the effect of up-down simultaneous attaching can be realized after the edge of each edge multiple sealing plate 2 is bent, the effect of strengthening the connecting strength is realized at the top, and meanwhile, the effect of attaching and sealing is realized at the bottom.

Claims (9)

1. The utility model provides a monomer is restoreed to steel roofing which characterized in that: including bar roof boarding (1) and two marginal multiple closing plates (2), the length direction of bar roof boarding (1) is followed respectively integrative connection in the both sides of bar roof boarding (1) to two marginal multiple closing plates (2), every marginal multiple closing plate (2) includes board body (3), short range barrier ply (4) and long range barrier ply (5), one side of board body (3) is connected with one side of bar roof boarding (1), laminating between the outer wall of board body (3) and bar roof boarding (1) has long range barrier ply (5), the opposite side outer wall laminating of board body (3) has short range barrier ply (4), be formed with in the middle between the outer wall of board body (3), short range barrier ply (4) and long range barrier ply (5) enclose and close groove (15), when the marginal multiple closing plate (2) is connected with support (20-1) on purlin (20), short range barrier ply (4) and long range barrier ply (5) paste respectively in the bottom both sides of support (20-1), when the marginal multiple closing plate (2) laminating from short range barrier ply (4) and long range barrier ply (5) are in the state of being in the laminating of short range barrier ply (4-1), form respectively, the top of the double-deck barrier structure (4-top end (6) is formed respectively A water-containing dredging cavity (6-2) is formed between the top end of the long-width barrier layer sheet (5) and the middle enclosing groove (15).

2. A steel roofing repair monomer according to claim 1, characterized in that: the strip-shaped roof board (1) is provided with ribs (7) along the thickness direction, and the length direction of the ribs (7) is the same as the length direction of the strip-shaped roof board (1).

3. A steel roofing repair monomer according to claim 1, characterized in that: a plurality of connecting nails (10) are matched and arranged on each edge multiple sealing plate (2).

4. A steel roofing repair monomer according to claim 3, characterized in that: a plurality of first concave parts (8) are processed on one side of the short-width barrier layer sheet (4) facing the long-width barrier layer sheet (5), a plurality of second concave parts (9) are processed on one side of the long-width barrier layer sheet (5) facing the short-width barrier layer sheet (4), and the first concave parts (8) and the second concave parts (9) are arranged in a one-to-one correspondence mode.

5. The steel roofing repair monomer of claim 4, wherein: each first concave part (8) is semicircular in shape, and each second concave part (9) is semicircular in shape.

6. A steel roofing repair monomer according to claim 5, wherein: the short-width barrier layer sheet (4) is provided with a first extrusion enclosing groove (13) on one side of the long-width barrier layer sheet (5), the first extrusion enclosing groove (13) is communicated with a middle enclosing groove (15), the long-width barrier layer sheet (5) is provided with a second extrusion enclosing groove (14) on one side of the short-width barrier layer sheet (4), the second extrusion enclosing groove (14) is communicated with the middle enclosing groove (15), the groove bottom of the first extrusion enclosing groove (13) and the inner walls of the two side grooves are provided with a first barrier single sheet (16), and the groove bottom of the second extrusion enclosing groove (14) and the inner walls of the two side grooves are provided with a second barrier single sheet (17).

7. A steel roofing repair monomer according to claim 5, wherein: at least one first concave part (8) is arranged in the first extrusion enclosing groove (13), and at least one second concave part (9) is arranged in the second extrusion enclosing groove (14).

8. A steel roofing repair monomer according to claim 4, 5, 6 or 7, characterized in that: when the edge multiple sealing plate (2) is in a self-attaching state, one first concave part (8) of the short-width barrier layer sheet (4) and a second concave part (9) of the corresponding long-width barrier layer sheet (5) are coaxially arranged to form a lower support type penetration half hole of the matched connecting nail (10).

9. A steel roofing repair monomer according to claim 1, characterized in that: the longitudinal section of the water-receiving and dredging cavity (6-2) along the thickness direction of the edge multiple sealing plate (2) is in a water drop shape, and the small end of the water drop shape is communicated with the top end of the double-layer blocking structure (6-1).