Building energy-saving insulation floor support plate splicing structure

Abstract

The application belongs to the technical field of floor support plates, and discloses an energy-saving and heat-insulating floor support plate splicing structure, which comprises a floor support plate. Through the cooperation of the step structure and the sealing mechanism one, two floor support plates are mutually engaged through two step structures, and the corresponding two sealing mechanisms one are in abutment. The splicing joint of the two step structures replaces the original splicing joint directly contacted by the floor support plate, the cross section forms a plurality of zigzag heat bridge blocking paths, the heat transfer path is significantly increased when heat is transferred along the splicing joint, the heat bridge effect at the splicing joint is effectively reduced, the inclined surfaces are staggered to form a continuous zigzag surface of the sealing path at the splicing joint, and when air is transferred along the splicing joint, it needs to continuously pass through a plurality of directionally alternating inclined surface sealing interfaces. Based on the zigzag route formed after the splicing of the two step structures, the sealing path is more effectively elongated by the wedge-shaped rubber sealing strip, and the heat-insulating and sealing performance of the splicing joint is greatly improved.

Description

Technical Field

[0001] This invention belongs to the field of floor decking technology, specifically a splicing structure for building energy-saving and heat-insulating floor decking. Background Technology

[0002] Building energy-saving insulated floor decking is a composite floor slab component used in prefabricated buildings. It typically consists of a base formwork layer, an insulation layer, and a panel layer, prefabricated in a factory and then transported to the site for installation. The base formwork layer uses modified polystyrene particle concrete or other lightweight concrete, the insulation layer uses polystyrene foam board or extruded polystyrene board, and the panel layer uses galvanized steel sheet or profiled steel sheet. All three are connected as a whole by a steel truss. During construction, multiple insulated floor deckings are laid side-by-side. After the joint surfaces of adjacent deckings are joined, a concrete overlay is poured on top to form the integral floor slab structure. In existing technologies, the joint surfaces of insulated floor deckings are usually flat, and two deckings are joined by butt joints, with the joint only connected by post-poured concrete.

[0003] However, the use of flat surfaces for splicing results in the insulation layer being interrupted at the splice joint, forming a continuous thermal bridge channel. Indoor heat easily escapes along the splice joint, reducing the overall thermal insulation performance of the building. Sealing the splice joint is difficult, and grout can easily seep into the gaps during concrete pouring. The gaps between the insulation layers are difficult to completely fill, forming air leakage channels and further aggravating heat loss. The structural strength at the splice joint is relatively weak, and there is a lack of effective mechanical connection between the two panels. Under the action of concrete pouring load and service load, relative displacement can easily occur at the splice joint, causing cracks in the upper concrete composite layer at the splice joint. Cracks not only affect the structural durability but also create additional heat loss paths. The end face of the insulation layer is directly exposed at the splice joint. Under the influence of temperature and humidity changes, the end face of the insulation layer is prone to deformation and aging, further weakening the sealing and insulation performance of the splice joint. Summary of the Invention

[0004] To address the problems mentioned in the background section, this invention provides a splicing structure for energy-saving and heat-insulating floor decking. This structure solves the problem that in existing floor decking splicing, the splicing surfaces are flat and face-to-face, resulting in the insulation layer being cut off at the splicing joint, forming a continuous thermal bridge channel. This allows indoor heat to easily escape along the splicing joint, reducing the overall heat insulation performance of the building.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a splicing structure for energy-saving and heat-insulating building decking, comprising a floor decking, wherein the floor decking comprises, from bottom to top, a bottom slab layer, an insulation layer and a panel layer; It also includes four sets of stepped structures installed on the outside of the floor deck; Each pair of staggered, stepped structures located on both sides of the floor deck can be nested and interlocked. The stepped structure is equipped with a sealing mechanism on both the horizontal and vertical surfaces. Two protective mechanisms are staggered on the top of the panel layer, and each of the protective mechanisms is equipped with a sealing mechanism II. The second sealing mechanism includes a bidirectional corrugated sealing strip 1 installed on one side of the protective mechanism and a bidirectional corrugated sealing strip 2 installed on the other side of the protective mechanism, wherein the bidirectional corrugated sealing strip 1 and the bidirectional corrugated sealing strip 2 fit together. The two-way corrugated sealing strip one and the two-way corrugated sealing strip two are respectively located between two adjacent stepped structures on the same side of the floor deck.

[0006] Preferably, the sealing mechanism includes a wedge-shaped rubber sealing strip fitted onto the stepped structure; The inclined surfaces of two adjacent wedge-shaped rubber sealing strips located on the vertical surface of the stepped structure are staggered; The inclined surfaces of two adjacent wedge-shaped rubber sealing strips located on the horizontal plane of the stepped structure are staggered.

[0007] Preferably, the sealing mechanism further includes a set of longitudinal guide strips disposed on the inclined surface of the wedge-shaped rubber sealing strip, the longitudinal guide strips being able to guide the upward-flowing hot air longitudinally.

[0008] Preferably, the stepped structure is composed of a combined insulation layer and a base plate layer, with the top of the stepped structure being higher than the top of the panel layer, and every two stepped structures located on the same side of the floor deck are staggered.

[0009] Preferably, the protective mechanism includes a first baffle and a second baffle welded to the top two ends of the panel layer, and the first baffle and the second baffle respectively cover the stepped structure located on both sides of the floor deck.

[0010] Preferably, the ends of the first baffle and the second baffle extend outward and bend downward to cover the gap between the two stepped structures. The two-way corrugated sealing strip one and the two-way corrugated sealing strip two are respectively installed on both sides of the first baffle.

[0011] Preferably, the protective mechanism further includes a top plate installed on top of the second baffle, the top plate being used to cover the gap generated after the two-way corrugated sealing strip one and the two-way corrugated sealing strip two are joined.

[0012] Preferably, the protective mechanism further includes two side plates fixedly installed at the bottom of the first baffle, and each of the side plates is fixedly connected to two staggered stepped structural sides located on the same side of the floor deck.

[0013] Preferably, the bidirectional corrugated sealing strip is composed of two metal sheets and a corrugated rubber layer thereon, with the two metal sheets respectively installed on opposite sides of the two side plates.

[0014] Preferably, each of the two-way corrugated sealing strips consists of a metal sheet and corrugated rubber layers installed on both sides of the metal sheet, with the metal sheet welded to the bottom of the top plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention utilizes a combination of stepped structures and sealing mechanisms. Two floor decking slabs interlock via two stepped structures, while corresponding sealing mechanisms abut against each other. The joint between the two stepped structures replaces the original direct contact joint between the floor decking slabs, creating multiple tortuous thermal bridge blocking paths. Heat transfer along the joint requires multiple directional changes, significantly increasing the heat conduction path and effectively reducing the thermal bridging effect at the joint. The staggered arrangement of the inclined surfaces creates a continuous tortuous sealing path at the joint. Air transfer along the joint must continuously pass through multiple alternating inclined sealing interfaces, increasing resistance. Based on the tortuous path formed by the two stepped structures, the sealing path is further extended by the wedge-shaped rubber sealing strip, significantly improving the thermal insulation and sealing performance of the joint.

[0016] This invention, through the combination of a stepped structure and a sealing mechanism, ensures that regardless of whether the joint is subjected to vertical or horizontal compressive force, a set of wedge-shaped rubber sealing strips with their inclined surfaces facing the direction of force are always pressed deeper into the gap. This increases the compression and enhances the sealing force, preventing the concrete from shrinking or expanding in winter and summer, and simultaneously causing the floor slab to move, thus avoiding the problem of unidirectional sealing failure. It maintains stable sealing performance over a wide temperature range, preventing sealing failure due to temperature changes, and further improves the synergistic sealing of the stepped structure and sealing mechanism, reducing the risk of heat loss. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the external structure of the present invention; Figure 2 This is a schematic diagram illustrating the interaction between the floor decking and the stepped structure of the present invention. Figure 3 This is a schematic diagram illustrating the combination of the stepped structure and the wedge-shaped rubber sealing strip structure of the present invention. Figure 4 This is a schematic diagram showing the interaction between the two sets of stepped structures and the wedge-shaped rubber sealing strips of the present invention; Figure 5 This is a schematic diagram illustrating the cooperation of the two sets of staggered stepped structures of the present invention; Figure 6 For the present invention Figure 5Enlarged view of point A in the middle; Figure 7 This is a schematic diagram showing the structural fit between the first bidirectional corrugated sealing strip and the second bidirectional corrugated sealing strip of the present invention; Figure 8 This is a schematic diagram of the external structure of the two-way corrugated sealing strip 1 and the two-way corrugated sealing strip 2 of the present invention; Figure 9 This is a schematic diagram showing the disassembled external structure of the first baffle of the present invention; Figure 10 This is a schematic diagram of the structure and cooperation of the first baffle and the second baffle of the present invention.

[0018] In the diagram: 1. Floor deck; 11. Panel layer; 12. Insulation layer; 13. Base plate layer; 2. Stepped structure; 3. Sealing mechanism one; 31. Wedge-shaped rubber sealing strip; 32. Longitudinal guide strip; 4. Protective mechanism; 41. First baffle; 411. Side plate; 42. Second baffle; 421. Top plate; 5. Sealing mechanism two; 51. Bidirectional corrugated sealing strip one; 52. Bidirectional corrugated sealing strip two. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] like Figures 1 to 10 As shown, the present invention provides a splicing structure for building energy-saving and heat-insulating floor decking, including floor decking 1, which includes a bottom slab layer 13, an insulation layer 12 and a panel layer 11 from bottom to top. It also includes four sets of stepped structures 2 installed on the outside of the floor deck 1; Each pair of staggered stepped structures 2 located on both sides of the floor deck 1 can be nested and interlocked; The stepped structure 2 is equipped with sealing mechanisms 3 on both the horizontal and vertical surfaces; Two protective mechanisms 4 are staggered on the top of the panel layer 11, and each protective mechanism 4 is equipped with a sealing mechanism 2 5; The sealing mechanism 2 5 includes a bidirectional corrugated sealing strip 1 51 installed on one side of the protective mechanism 4 and a bidirectional corrugated sealing strip 2 52 installed on the other side of the protective mechanism 4, wherein the bidirectional corrugated sealing strip 1 51 and the bidirectional corrugated sealing strip 2 52 fit together. Two-way corrugated sealing strip 1 51 and two-way corrugated sealing strip 2 52 are respectively located between two adjacent stepped structures 2 on the same side of the floor deck 1.

[0021] The stepped structure 2 is composed of a combined insulation layer 12 and a base plate layer 13, with the top of the stepped structure 2 being higher than the top of the panel layer 11.

[0022] Using the above scheme: when floor decking 1 is spliced, since the stepped structures 2 on both sides of floor decking 1 are staggered, the two floor decking 1 can interlock with each other through the two stepped structures 2. Since two stepped structures 2 are set on the same side of the floor deck 1, a two-way corrugated sealing strip 1 51 and a two-way corrugated sealing strip 2 52 are also set between each two stepped structures 2 located on the same side of the floor deck 1. During the splicing process, the two-way corrugated sealing strip 1 51 and the two-way corrugated sealing strip 2 52 will still interlock. After the splicing work is completed, the splicing surface of the floor deck 1 is no longer vertical, but zigzag, in order to increase the path and resistance required for heat to diffuse upward. Each vertical and horizontal surface of the stepped structure 2 is equipped with a sealing mechanism 3. When the assembly is completed, the two corresponding sealing mechanisms 3 will also collide, thereby further preventing heat from spreading outward. Among them, the stepped structure 2 is mainly formed by the insulation layer 12 and the bottom slab layer 13, and extends to the concrete area of ​​the panel layer 11 to be poured. This allows the joints of the two stepped structures 2 to replace the original joints where the floor slab 1 directly contacts. The resulting cross-section is no longer a flat, weak surface, but rather forms multiple tortuous thermal bridge blocking paths. Figure 4 The joint formed by the two stepped structures and two phase contact surfaces shown in the image requires the heat to change direction multiple times when it is transferred along the joint, which significantly increases the heat conduction path, effectively reduces the thermal bridging effect at the joint, and improves the overall thermal insulation performance of the building. The staggered arrangement of the inclined surfaces creates a continuous tortuous sealing path at the joint. When heat, air, and moisture are transferred along the joint, they need to pass through multiple alternating inclined sealing interfaces. Each time they pass through an inclined interface, the direction of heat and mass transfer changes, significantly increasing the resistance to transfer. Based on the tortuous path formed by the splicing of the original two stepped structures 2, the sealing path is more effectively extended by the mutually sealing sealing mechanism 3, greatly improving the thermal insulation and sealing performance of the joint.

[0023] The stepped structure 2 extends into the post-cast concrete area, so that the concrete composite layer at the joint forms a continuous interlocking body within the stepped outline, maintaining the integrity and unity of the concrete and the floor slab 1.

[0024] like Figure 1 and Figures 7-9 As shown, every two stepped structures 2 located on the same side of the floor deck 1 are staggered.

[0025] The above scheme is adopted: After the splicing is completed, the two staggered stepped structures 2 on the same side bear the upward and downward pressure respectively, which further improves the bearing capacity of the stepped structure 2 for concrete and reduces the risk of concrete cracking along the joint.

[0026] like Figures 1-6 As shown, the sealing mechanism 3 includes a wedge-shaped rubber sealing strip 31 fitted onto the stepped structure 2; The inclined surfaces of two adjacent wedge-shaped rubber sealing strips 31 located on the vertical surface of the stepped structure 2 are staggered; The inclined surfaces of two adjacent wedge-shaped rubber sealing strips 31 located on the horizontal plane of the stepped structure 2 are staggered.

[0027] Using the above scheme: After the splicing is completed, the corresponding wedge-shaped rubber sealing strips 31 abut against each other with their inclined surfaces to achieve a further seal, so as to prevent heat from spreading outward. Then concrete is poured directly. However, in summer and winter, the concrete will expand and shrink respectively. like Figure 4 The wedge-shaped rubber sealing strips 31 shown are arranged such that the inclined surfaces of any two adjacent wedge-shaped rubber sealing strips 31, whether located on the vertical or horizontal plane of the stepped structure 2, are always facing opposite directions. This ensures that when the joint is subjected to vertical or horizontal compressive force, there is always one set of wedge-shaped rubber sealing strips 31 with their inclined surfaces facing the direction of force. This set of wedge-shaped rubber sealing strips 31 is further pressed into the gap, increasing the compression and enhancing the sealing force. This prevents the concrete from shrinking or expanding in winter and summer, and simultaneously causes the floor deck 1 to move, thus avoiding the problem of unidirectional sealing failure. It maintains stable sealing performance over a wide temperature range and will not fail due to temperature changes. This further improves the coordinated sealing of the stepped structure 2 and the sealing mechanism 3, reducing the risk of heat loss. It is also important to note that the staggered arrangement of the inclined surfaces creates a progressive self-locking effect for the wedge-shaped rubber sealing strips 31 during installation and under pressure. When two floor deckings are pressed together, the inclined surfaces of the first set of wedge-shaped rubber sealing strips 31 guide the wedge-shaped rubber sealing strips 31 to slide into the depth of the gap. Subsequently, the inclined surfaces of the second set of wedge-shaped rubber sealing strips 31 apply a restraining force from the opposite direction, preventing the first set of wedge-shaped rubber sealing strips 31 from rebounding out. The two sets of wedge-shaped rubber sealing strips 31 restrain each other, so that the wedge-shaped rubber sealing strips 31 automatically lock in the optimal sealing position after being compressed, maintaining long-term stable sealing performance without the need for additional fixing structures. The staggered arrangement of the inclined surfaces gives the wedge-shaped rubber sealing strip 31 an asymmetrical resistance to withdrawal. If the wedge-shaped rubber sealing strip 31 attempts to withdraw from the gap, the inclined surfaces of one set of wedge-shaped rubber sealing strips 31 will form a guiding resistance, requiring the withdrawal process to overcome greater friction and compressive deformation forces; the thick end of the other set of wedge-shaped rubber sealing strips 31 forms a mechanical block, directly preventing the wedge-shaped rubber sealing strip 31 from withdrawing. The two sets of wedge-shaped rubber sealing strips 31 provide withdrawal resistance from different directions, making it less likely for the wedge-shaped rubber sealing strip 31 to fall off or shift under conditions such as concrete pouring vibration, temperature changes, and structural deformation, thus improving the reliability of the sealing structure.

[0028] like Figure 6 As shown, the sealing mechanism 3 also includes a set of longitudinal guide strips 32 disposed on the inclined surface of the wedge-shaped rubber sealing strip 31. The longitudinal guide strips 32 can guide the upward-flowing hot air to flow longitudinally.

[0029] The above solution is adopted: longitudinal grooves are formed between the longitudinally raised longitudinal guide strips 32, which can guide the seepage of trace amounts of air or moisture to flow along the groove direction, so that it is discharged longitudinally along the splice joint, rather than going into the interior of the insulation layer laterally along the splice joint; even if there is a small amount of seepage, it can be discharged in a concentrated manner along the groove, avoiding the accumulation of moisture in the insulation layer and protecting the insulation layer from moisture erosion.

[0030] like Figures 1-10 As shown, the protective mechanism 4 includes a first baffle 41 and a second baffle 42 respectively welded to the top two ends of the panel layer 11. The first baffle 41 and the second baffle 42 respectively cover the stepped structure 2 located on both sides of the floor deck 1.

[0031] The ends of the first baffle 41 and the second baffle 42 extend outward and bend downward to cover the gap between the two stepped structures 2. Two-way corrugated sealing strip 51 and two-way corrugated sealing strip 52 are respectively installed on both sides of the first baffle 41.

[0032] The protective mechanism 4 also includes a top plate 421 installed on top of the second baffle 42. The top plate 421 is used to cover the gap generated after the two-way corrugated sealing strip 1 51 and the two-way corrugated sealing strip 2 52 are joined.

[0033] The protective mechanism 4 also includes two side plates 411 fixedly installed at the bottom of the first baffle 41. Each side plate 411 is fixedly connected to the side of two staggered stepped structures 2 located on the same side of the floor deck 1.

[0034] The bidirectional corrugated sealing strip 51 consists of two metal sheets and a corrugated rubber layer thereon, with the two metal sheets respectively installed on the opposite sides of the two side plates 411.

[0035] Each of the two-way corrugated sealing strips 52 consists of a metal sheet and corrugated rubber layers installed on both sides of the metal sheet. The metal sheet is welded to the bottom of the top plate 421.

[0036] The above solution is adopted: Since there are two stepped structures 2 on the same side of the floor deck 1, the gap between the two stepped structures 2 is filled by the two-way corrugated sealing strips 51 and 52. The joint surface of the two-way corrugated sealing strips 51 and 52 is corrugated, which also increases the airflow path and resistance. Depend on Figure 5 The side plate 411 and the stepped structure 2 shown are shown, wherein two stepped structures 2 are fixedly connected to the side plate 411, and the side plate 411 is welded to the first baffle 41. If the side plate 411 is not present, the bidirectional wave sealing strip 51 is directly installed on the side of the first baffle 41, and air will directly leak out through the gap between the side of the bidirectional wave sealing strip 51 and the stepped structure 2. The main materials constituting the stepped structure 2 are the insulation layer 12 and the base plate layer 13. Therefore, the first baffle 41 and the second baffle 42 are welded to the top of the panel layer 11. The first baffle 41 and the second baffle 42 simultaneously protect the top of each stepped structure 2, further preventing concrete from directly contacting the stepped structure 2, thereby affecting the insulation material and ultimately causing the insulation to fail.

[0037] Working principle and usage process of this invention: When floor decking 1 is spliced, the stepped structures 2 on both sides of floor decking 1 are staggered, so the two floor decking 1 can interlock with each other through the two stepped structures 2. After splicing, the splicing surface of floor decking 1 is zigzag to increase the path and resistance required for heat to diffuse upward. Each vertical and horizontal surface of the stepped structure 2 is equipped with a sealing mechanism 3. When the assembly is completed, the two corresponding sealing mechanisms 3 will also collide to further prevent heat from spreading outward. After the splicing is completed, the corresponding wedge-shaped rubber sealing strips 31 abut against each other with their inclined surfaces to achieve a further seal, preventing heat from spreading outward, and then concrete is poured directly; The inclined surfaces of every two adjacent wedge-shaped rubber sealing strips 31, whether located on the vertical or horizontal plane of the stepped structure 2, are always set in opposite directions. When the joint is subjected to vertical or horizontal compressive force, the inclined surfaces of one set of wedge-shaped rubber sealing strips 31 always face the direction of force. This set of wedge-shaped rubber sealing strips 31 is further pressed into the gap, increasing the compression and enhancing the sealing force. This prevents the concrete from shrinking or expanding in winter and summer, and at the same time drives the floor deck 1 to move, thus preventing the problem of unidirectional sealing failure.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A splicing structure for energy-saving and heat-insulating floor decking in buildings, characterized in that: The floor deck (1) includes a bottom layer (13), an insulation layer (12) and a panel layer (11) from bottom to top. It also includes four sets of stepped structures (2) installed on the outside of the floor deck (1); Each pair of staggered stepped structures (2) located on both sides of the floor deck (1) can be nested and interlocked; The stepped structure (2) is equipped with a sealing mechanism (3) on both the horizontal and vertical surfaces. Two protective mechanisms (4) are staggered on the top of the panel layer (11), and each of the protective mechanisms (4) is equipped with a sealing mechanism (5). The sealing mechanism 2 (5) includes a bidirectional wave sealing strip 1 (51) installed on one side of the protective mechanism (4) and a bidirectional wave sealing strip 2 (52) installed on the other side of the protective mechanism (4), wherein the bidirectional wave sealing strip 1 (51) and the bidirectional wave sealing strip 2 (52) fit together. The two-way wave sealing strip one (51) and the two-way wave sealing strip two (52) are located between two adjacent stepped structures (2) on the same side of the floor deck (1).

2. The building energy-saving and thermal insulation floor deck splicing structure according to claim 1, characterized in that: The sealing mechanism (3) includes a wedge-shaped rubber sealing strip (31) fitted onto the stepped structure (2). The inclined surfaces of two adjacent wedge-shaped rubber sealing strips (31) located on the vertical surface of the stepped structure (2) are staggered; The inclined surfaces of two adjacent wedge-shaped rubber sealing strips (31) located on the horizontal plane of the stepped structure (2) are staggered.

3. The building energy-saving and thermal insulation floor deck splicing structure according to claim 2, characterized in that: The sealing mechanism (3) further includes a set of longitudinal guide strips (32) disposed on the inclined surface of the wedge-shaped rubber sealing strip (31), the longitudinal guide strips (32) being able to guide the upward-flowing hot air longitudinally.

4. The building energy-saving and thermal insulation floor deck splicing structure according to claim 1, characterized in that: The stepped structure (2) is composed of a combined insulation layer (12) and a base plate layer (13). The top of the stepped structure (2) is higher than the top of the panel layer (11). Every two stepped structures (2) located on the same side of the floor deck (1) are staggered.

5. The building energy-saving and thermal insulation floor deck splicing structure according to claim 4, characterized in that: The protective mechanism (4) includes a first baffle (41) and a second baffle (42) welded to the top two ends of the panel layer (11), and the first baffle (41) and the second baffle (42) respectively cover the stepped structure (2) located on both sides of the floor deck (1).

6. The building energy-saving and thermal insulation floor deck splicing structure according to claim 5, characterized in that: The ends of the first baffle (41) and the second baffle (42) extend outward and bend downward to cover the gap between the two stepped structures (2); The first bidirectional wave sealing strip (51) and the second bidirectional wave sealing strip (52) are respectively installed on both sides of the first baffle (41).

7. The building energy-saving and thermal insulation floor deck splicing structure according to claim 6, characterized in that: The protective mechanism (4) also includes a top plate (421) installed on top of the second baffle (42), which is used to cover the gap generated after the two-way wave sealing strip one (51) and the two-way wave sealing strip two (52) are joined.

8. The building energy-saving and thermal insulation floor deck splicing structure according to claim 7, characterized in that: The protective mechanism (4) also includes two side plates (411) fixedly installed at the bottom of the first baffle (41), and each of the side plates (411) is fixedly connected to the side of two staggered stepped structures (2) located on the same side of the floor deck (1).

9. The building energy-saving and thermal insulation floor deck splicing structure according to claim 8, characterized in that: The bidirectional corrugated sealing strip (51) consists of two metal sheets and a corrugated rubber layer thereon, with the two metal sheets respectively installed on the opposite sides of the two side plates (411).

10. The building energy-saving and thermal insulation floor deck splicing structure according to claim 9, characterized in that: Each of the two-way corrugated sealing strips (52) consists of a metal sheet and corrugated rubber layers installed on both sides of the metal sheet, with the metal sheet welded to the bottom of the top plate (421).

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