Lamella unit

Abstract

The application discloses a laminated slab unit, comprising: a first laminated slab assembly, comprising a first mounting frame and a first laminated slab arranged in the first mounting frame, the first mounting frame being provided with a first butt joint side, the first butt joint side being provided with a positioning groove and a first clamping groove; a second laminated slab assembly, comprising a second mounting frame and a second laminated slab arranged in the second mounting frame, the second mounting frame being provided with a second butt joint side butt jointed with the first butt joint side, the second butt joint side being provided with a positioning protrusion arranged in the positioning groove, and the second butt joint side being provided with a second clamping groove arranged opposite to the first clamping groove; and a butt joint assembly, comprising a butt joint block arranged in the first clamping groove and the second clamping groove, a first leveling piece arranged in the butt joint block and the first mounting frame, and a second leveling piece arranged in the butt joint block and the second mounting frame.

Description

Technical Field

[0001] This invention relates to the field of laminated plate technology, and particularly to a laminated plate unit. Background Technology

[0002] With the continuous development of the construction industry, the market demand for prefabricated assembled buildings is constantly increasing, among which prefabricated composite slabs are an extremely important component. Prefabricated composite slabs are composed of prefabricated slabs and cast-in-place reinforced concrete components, and have advantages such as good overall floor slab integrity, smooth upper and lower surfaces of the slab, and ease of finishing, making them suitable for high-rise buildings and large-span buildings with high requirements for overall rigidity.

[0003] In prefabricated composite slab construction, due to the significant weight of each slab, steel reinforcement is required for hoisting. The interplay between the steel reinforcement and concrete enhances the seismic resistance of the prefabricated composite slab. However, currently, during construction, a significant height difference often occurs between adjacent prefabricated composite slabs, leading to grout leakage during concrete pouring. Summary of the Invention

[0004] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a laminated plate unit that can reduce the height difference between two adjacent laminated plate assemblies.

[0005] According to some embodiments of the present invention, a composite plate unit includes: a first composite plate assembly including a first mounting frame and a first composite plate disposed within the first mounting frame, the first mounting frame having a first mating side, the first mating side being provided with a positioning groove and a first snap-fit ​​groove; a second composite plate assembly including a second mounting frame and a second composite plate disposed within the second mounting frame, the second mounting frame having a second mating side mating with the first mating side, the second mating side being provided with a positioning protrusion passing through the positioning groove, and the second mating side being provided with a second snap-fit ​​groove disposed opposite to the first snap-fit ​​groove; and a mating assembly including a mating block disposed within the first snap-fit ​​groove and the second snap-fit ​​groove, a first leveling member passing through the mating block and the first mounting frame, and a second leveling member passing through the mating block and the second mounting frame.

[0006] The laminated plate unit according to embodiments of the present invention has at least the following beneficial effects:

[0007] During the assembly of the composite slab unit of the present invention, workers first use a tower crane to install the first composite slab assembly onto the roof of the building; then, workers use the tower crane to hoist the second composite slab assembly onto the roof of the building, and then the positioning protrusion on the second composite slab assembly is inserted into the positioning groove of the first composite slab assembly to achieve pre-positioning; next, the mating block is placed into the first snap-fit ​​groove and the second snap-fit ​​groove; then, the first leveling component is inserted into the mating block and the first mounting frame to connect the mating block and the first mounting frame, and the second leveling component is inserted into the mating block and the second mounting frame to connect the mating block and the second mounting frame. In the process of using the first and second leveling components to connect the first and second composite slab assemblies, leveling of the first and second composite slab assemblies can be achieved, reducing the height difference between the first and second composite slab assemblies.

[0008] According to some embodiments of the present invention, the bottom wall of the first snap-fit ​​groove is provided with a first threaded hole, the mating block is provided with a first through hole opposite to the first threaded hole, the first leveling member includes a first abutting part and a first threaded post connected to the first abutting part, the first threaded post passes through the first through hole and the first threaded hole, and the first abutting part abuts against the side of the mating block away from the first threaded hole.

[0009] According to some embodiments of the present invention, the bottom wall of the second snap-fit ​​groove is provided with a second threaded hole, the mating block is provided with a second through hole opposite to the second threaded hole, the second leveling member includes a second abutting part and a second threaded post connected to the second abutting part, the second threaded post passes through the second through hole and the second threaded hole, and the second abutting part abuts against the side of the mating block away from the second threaded hole.

[0010] According to some embodiments of the present invention, the first mounting frame and the second mounting frame are provided with fixing components, the fixing components including a rotatable connecting rod, a transmission component that is pulverically connected to the connecting rod, and a positioning component provided on the transmission component, the bottom of the connecting rod being provided with a threaded connection portion.

[0011] According to some embodiments of the present invention, the side wall of the connecting rod is provided with a transmission arm, and the transmission member is provided with a clearance groove for the transmission arm to pass through.

[0012] According to some embodiments of the present invention, the fixing component further includes a pull rod connected to the transmission member, the pull rod and the positioning member being respectively disposed on the upper and lower sides of the transmission member.

[0013] According to some embodiments of the present invention, the pull rod is provided with a pull ring.

[0014] According to some embodiments of the present invention, the first mounting frame is provided with a first guide hole, the second mounting frame is provided with a second guide hole, the connecting rod of the fixing component on the first mounting frame passes through the first guide hole, and the connecting rod of the fixing component on the second mounting frame passes through the second guide hole.

[0015] According to some embodiments of the present invention, each corner of the first mounting frame and / or the second mounting frame is provided with the fixing component.

[0016] According to some embodiments of the present invention, the first laminated plate and / or the second laminated plate are provided with a protective component inside, the protective component including a sound-absorbing layer, a heat-insulating coating, a wear-resistant and flame-retardant layer, a heat-insulating and flame-retardant layer and a heat-insulating and fire-resistant layer stacked together.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0019] Figure 1 This is a top view of a composite plate unit according to an embodiment of the present invention;

[0020] Figure 2 This is a partial top view of a composite plate unit according to an embodiment of the present invention;

[0021] Figure 3 This is a partial structural schematic diagram of the vertical cross-section of a composite plate unit according to an embodiment of the present invention;

[0022] Figure 4 This is a structural schematic diagram of the vertical cross-section of a first composite plate assembly according to an embodiment of the present invention;

[0023] Figure 5 This is a partial structural schematic diagram of the vertical cross-section of a first composite plate assembly according to an embodiment of the present invention;

[0024] Figure 6 This is a structural schematic diagram of the vertical cross-section of the first composite plate according to an embodiment of the present invention.

[0025] Icon labels:

[0026] 100. First composite plate assembly; 110. First mounting frame; 111. First snap-fit ​​groove; 1111. First threaded hole; 112. Positioning groove; 113. First guide hole; 114. First mounting cavity; 115. First through hole; 120. First composite plate; 121. Sound-absorbing layer; 122. Heat-insulating coating; 123. Wear-resistant and flame-retardant layer; 124. Heat-insulating and flame-retardant layer; 125. Heat-insulating and fireproof layer;

[0027] 200. Second composite plate assembly; 210. Second mounting frame; 211. Second snap-fit ​​groove; 2111. Second threaded hole; 212. Positioning protrusion;

[0028] 300. Connecting assembly; 310. Connecting block; 311. First through hole; 312. Second through hole; 320. First leveling component; 321. First threaded post; 322. First abutment part; 330. Second leveling component; 331. Second threaded post; 332. Second abutment part;

[0029] 400. Fixing component; 410. Connecting rod; 411. Threaded connection; 412. Transmission arm; 420. Transmission component; 421. Clearance groove; 430. Positioning component; 440. Pull rod; 450. Pull ring. Detailed Implementation

[0030] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0031] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] like Figure 1 As shown, an embodiment of the present invention relates to a composite plate unit, which includes a first composite plate assembly 100, a second composite plate assembly 200, and a docking assembly 300. The docking assembly 300 is used to dock the first composite plate assembly 100 and the second composite plate assembly 200 together.

[0034] The first composite plate assembly 100 includes a first mounting frame 110 and a first composite plate 120 disposed within the first mounting frame 110; the second composite plate assembly 200 includes a second mounting frame 210 and a second composite plate disposed within the second mounting frame 210.

[0035] Specifically, the first mounting frame 110 frames the first composite plate 120 and is fixed together with the first composite plate 120; the second mounting frame 210 frames the second composite plate and is fixed together with the second composite plate.

[0036] It should be noted that the first laminated plate assembly 100 and the second laminated plate assembly 200 have the same structure. Figure 1 Only a partial structure of the second mounting frame 210 in the second composite plate assembly 200 is shown.

[0037] like Figure 2 , Figure 3 As shown, the first mounting frame 110 has a first docking side, and the second mounting frame 210 has a second docking side that docks with the first docking side. That is, the first docking side of the first mounting frame 110 and the second docking side of the second mounting frame 210 are arranged opposite to each other, and the first docking side of the first mounting frame 110 and the second docking side of the second mounting frame 210 are docked together by the docking component 300.

[0038] The first mounting frame 110 has a positioning groove 112 and a first snap-fit ​​groove 111 on its first docking side. The second mounting frame 210 has a positioning protrusion 212 that passes through the positioning groove 112 on its second docking side, and a second snap-fit ​​groove 211 that is opposite to the first snap-fit ​​groove 111 on its second docking side.

[0039] Specifically, the positioning protrusion 212 on the second mating side of the second mounting frame 210 passes through the positioning groove 112 on the first mating side of the first mounting frame 110, which can realize the pre-positioning of the first mounting frame 110 and the second mounting frame 210. After the first mounting frame 110 and the second mounting frame 210 are pre-positioned, the first snap-fit ​​groove 111 and the second snap-fit ​​groove 211 are opposite each other.

[0040] The docking assembly 300 includes a docking block 310 disposed in the first locking groove 111 and the second locking groove 211, a first leveling member 320 passing through the docking block 310 and the first mounting frame 110, and a second leveling member 330 passing through the docking block 310 and the second mounting frame 210.

[0041] Specifically, the first leveling component 320 passes through the mating block 310 and the first mounting frame 110, enabling the connection between the mating block 310 and the first mounting frame 110. The second leveling component 330 passes through the mating block 310 and the second mounting frame 210, enabling the connection between the mating block 310 and the second mounting frame 210. Thus, using the mating block 310 as an intermediate connector, the first mounting frame 110 and the second mounting frame 210 can be mated under the action of the first leveling component 320 and the second leveling component 330. Furthermore, the first leveling component 320 levels the first mounting frame 110, and the second leveling component 330 levels the second mounting frame 210, thereby making the first mounting frame 110 and the second mounting frame 210 flush and reducing the height difference between them.

[0042] During the assembly of the composite panel unit of the present invention, firstly, workers use a tower crane to install the first composite panel assembly 100 onto the roof of the building; then, workers use the tower crane to hoist the second composite panel assembly 200 onto the roof of the building, and then the positioning protrusion 212 on the second composite panel assembly 200 is inserted into the positioning groove 112 of the first composite panel assembly 100 to achieve pre-positioning; then, the mating block 310 is placed into the first snap-fit ​​groove 111 and the second snap-fit ​​groove 211; then, the first leveling component 320 is inserted into the mating block 310 and the first mounting frame 110 to achieve the connection between the mating block 310 and the first mounting frame 110, and the second leveling component 330 is inserted into the mating block 310 and the second mounting frame 210 to achieve the connection between the mating block 310 and the second mounting frame 210. In the process of connecting the first composite plate assembly 100 and the second composite plate assembly 200 using the first leveling component 320 and the second leveling component 330, the first composite plate assembly 100 and the second composite plate assembly 200 can be leveled, reducing the height difference between the first composite plate assembly 100 and the second composite plate assembly 200.

[0043] like Figure 3 As shown, the bottom wall of the first snap-fit ​​groove 111 is provided with a first threaded hole 1111, and the mating block 310 is provided with a first through hole 311 opposite to the first threaded hole 1111. The first leveling member 320 includes a first abutting part 322 and a first threaded post 321 connected to the first abutting part 322. The first threaded post 321 passes through the first through hole 311 and the first threaded hole 1111. The first abutting part 322 abuts against the side of the mating block 310 away from the first threaded hole 1111. In this way, the first leveling member 320 can realize the connection between the mating block 310 and the first mounting frame 110. Furthermore, by rotating the first leveling member 320, the depth of the first leveling member 320 passing through the first threaded hole 1111 can be changed, thereby changing the height difference between the first composite plate assembly 100 and the second composite plate assembly 200.

[0044] The bottom wall of the second snap-fit ​​groove 211 is provided with a second threaded hole 2111, and the mating block 310 is provided with a second through hole 312 opposite to the second threaded hole 2111. The second leveling member 330 includes a second abutment portion 332 and a second threaded post 331 connected to the second abutment portion 332. The second threaded post 331 passes through the second through hole 312 and the second threaded hole 2111. The second abutment portion 332 abuts against the side of the mating block 310 away from the second threaded hole 2111. In this way, the second leveling member 330 can realize the connection between the mating block 310 and the second mounting frame 210. Furthermore, by rotating the second leveling member 330, the depth of the second leveling member 330 passing through the second threaded hole 2111 can be changed, thereby changing the height difference between the first composite plate assembly 100 and the second composite plate assembly 200.

[0045] It is understandable that both the first leveling component 320 and the second leveling component 330 are bolts.

[0046] like Figure 1 , Figure 2 , Figure 4 As shown, in one embodiment, both the first mounting frame 110 and the second mounting frame 210 are provided with fixing components 400. The fixing components 400 on the first mounting frame 110 are used to fix the first composite panel assembly 100 to the top surface of the building, and the fixing components 400 on the second mounting frame 210 are used to fix the second composite panel assembly 200 to the top surface of the building.

[0047] like Figure 5 As shown, the fixing component 400 includes a rotatable connecting rod 410, a transmission component 420 that is pulverically connected to the connecting rod 410, and a positioning component 430 disposed on the transmission component 420. The bottom of the connecting rod 410 is provided with a threaded connection portion 411.

[0048] It should be noted that the top surface of the building is pre-set with positioning holes and screw holes. The threaded connection part 411 at the bottom of the connecting rod 410 is used to pass through the screw hole, and the positioning part 430 is used to pass through the positioning hole.

[0049] Specifically, with the first composite panel assembly 100 already installed on the building roof, workers can insert the positioning protrusion 212 on the second composite panel assembly 200 into the positioning groove 112 of the second composite panel assembly 200 to achieve pre-positioning. At this time, the threaded connection portion 411 of the connecting rod 410 of the fixing component 400 on the second composite panel assembly 200 is aligned with the screw hole of the building roof, and the positioning member 430 is aligned with the positioning hole. Then, by rotating the connecting rod 410 of the fixing component 400 on the second composite panel assembly 200, the threaded connection portion 411 of the connecting rod 410 is screwed into the screw hole. During the screwing process of the threaded connection portion 411, the connecting rod 410 drives the positioning member 430 to pass into the positioning hole. In this way, the fixing component 400 can be used to fix and limit the second composite panel assembly 200.

[0050] It is understandable that the first composite plate assembly 100 uses the fixing component 400 to achieve fixation and limiting in the same way as the second composite plate assembly 200 uses the fixing component 400 to achieve fixation and limiting, and will not be described again here.

[0051] Furthermore, the side wall of the connecting rod 410 is provided with a transmission arm 412, and the transmission member 420 is provided with a clearance groove 421 for the transmission arm 412 to pass through. Thus, when the connecting rod 410 rotates so that the threaded connection part 411 screws into the threaded hole, the transmission arm 412 also moves toward the threaded hole and abuts against the groove wall of the clearance groove 421, so that the transmission member 420 moves downward and the positioning member 430 passes into the positioning hole.

[0052] Specifically, the connecting rod 410 and the threaded connection part 411 are coaxially arranged, and the connecting rod 410 and the positioning member 430 are arranged side by side and spaced apart. The transmission arm 412 is arranged on the side wall of the connecting rod 410. The transmission member 420 has a relief groove 421 inside. The connecting rod 410 passes through the relief groove 421, and the transmission arm 412 extends into the relief groove 421.

[0053] Furthermore, the fixing assembly 400 also includes a pull rod 440 connected to the transmission member 420. The pull rod 440 and the positioning member 430 are respectively disposed on the upper and lower sides of the transmission member 420. Thus, when the fixing assembly 400 needs to be disassembled, when the threaded connection part 411 is pulled out of the threaded hole, the pull rod 440 can be pulled to assist in moving the transmission member 420, thereby lifting the positioning member 430 and the connecting rod 410 upward.

[0054] Furthermore, a pull ring 450 is provided on the pull rod 440.

[0055] Specifically, in this embodiment, the first mounting frame 110 is provided with a first guide hole 113, and the second mounting frame 210 is provided with a second guide hole. The connecting rod 410 of the fixing component 400 on the first mounting frame 110 passes through the first guide hole 113, and the connecting rod 410 of the fixing component 400 on the second mounting frame 210 passes through the second guide hole. The first guide hole 113 guides the connecting rod 410 of the fixing component 400 on the first mounting frame 110, guiding the connecting rod 410 to move up and down; the second guide hole guides the connecting rod 410 of the fixing component 400 on the second mounting frame 210, guiding the connecting rod 410 to move up and down.

[0056] Furthermore, the first mounting frame 110 has a first mounting cavity 114 communicating with the first guide hole 113, and the second mounting frame 210 has a second mounting cavity communicating with the second guide hole. The transmission component 420 of the fixing component 400 on the first mounting frame 110 is located in the first mounting cavity 114, and the transmission component 420 of the fixing component 400 on the second mounting frame 210 is located in the second mounting cavity.

[0057] Furthermore, the first mounting frame 110 has a first through hole 115 communicating with the first mounting cavity 114, and the second mounting frame 210 has a second through hole communicating with the second mounting cavity. The positioning member 430 of the fixing component 400 on the first mounting frame 110 passes through the first through hole 115, and the positioning member of the fixing component 400 on the second mounting frame 210 passes through the second through hole.

[0058] Furthermore, each corner of the first mounting frame 110 and the second mounting frame 210 is provided with a fixing component 400.

[0059] It is understood that the fixing component 400 of the above embodiment can be provided only in the first mounting frame 110, while the second mounting frame 210 is fixed to the building roof by other fixing devices; or the fixing component 400 of the above embodiment can be provided only in the second mounting frame 210, while the first mounting frame 110 is fixed to the building roof by other fixing devices.

[0060] like Figure 6 As shown, in one embodiment, the first composite plate 120 and / or the second composite plate are provided with a protective component, which includes a sound-absorbing layer 121, a heat-insulating coating 122, a wear-resistant and flame-retardant layer 123, a heat-insulating and flame-retardant layer 124, and a heat-insulating and fireproof layer 125 stacked together.

[0061] Specifically, a sound-absorbing layer 121 is installed inside the first composite plate 120 and / or the second composite plate. The sound-absorbing layer 121 is coated with a heat-insulating coating 122 on both the upper and lower sides. A wear-resistant and flame-retardant layer 123 is attached to the side of the heat-insulating coating 122 away from the sound-absorbing layer 121. A heat-insulating and flame-retardant layer 124 is connected to the side of the wear-resistant and flame-retardant layer 123 away from the sound-absorbing layer 121. A heat-insulating and fireproof layer 125 is fixedly connected to the side of the heat-insulating and flame-retardant layer 124 away from the wear-resistant and flame-retardant layer 123.

[0062] Among them, the heat insulation and fireproof layer 125 is made of aluminum foil, the heat insulation and flame retardant layer 124 is made of rock wool board; the wear-resistant and flame retardant layer 123 is made of flame retardant polyamide, the heat insulation coating 122 is made of nano barium titanate film, and the sound absorption layer 121 is made of sound-absorbing sponge.

[0063] The heat-insulating and fire-resistant layer 125 provides heat insulation, moisture protection, and fire resistance; the heat-insulating and flame-retardant layer 124 provides heat insulation and flame retardancy; the wear-resistant and flame-retardant layer 123 provides wear resistance and flame retardancy; the heat-insulating coating 122 further enhances heat insulation performance; and the sound-absorbing layer 121 absorbs noise and reduces noise levels. Thus, the first and second composite panels described above possess fire-retardant, heat-insulating, and noise-reducing properties, improving the comfort of living spaces.

[0064] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0065] Although embodiments of the invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A composite plate unit, characterized in that, include: The first composite plate assembly includes a first mounting frame and a first composite plate disposed within the first mounting frame. The first mounting frame has a first mating side, and the first mating side is provided with a positioning groove and a first snap-fit ​​groove. The second composite plate assembly includes a second mounting frame and a second composite plate disposed within the second mounting frame. The second mounting frame has a second mating side that mates with the first mating side. The second mating side is provided with a positioning protrusion that passes through the positioning groove, and the second mating side is provided with a second snap-fit ​​groove that is disposed opposite to the first snap-fit ​​groove. The docking assembly includes a docking block disposed in the first snap-fit ​​groove and the second snap-fit ​​groove, a first leveling component passing through the docking block and the first mounting frame, and a second leveling component passing through the docking block and the second mounting frame. The first and second mounting frames are equipped with fixing components, each including a rotatable connecting rod, a transmission component connected to the connecting rod, and a positioning component on the transmission component. The bottom of the connecting rod has a threaded connection. The side wall of the connecting rod has a transmission arm, and the transmission component has a clearance groove for the transmission arm to pass through. The fixing component also includes a pull rod connected to the transmission component, with the pull rod and the positioning component respectively located on the upper and lower sides of the transmission component. The pull rod has a pull ring. The first mounting frame has a first guide hole, and the second mounting frame has a second guide hole. The connecting rod of the fixing component on the first mounting frame passes through the first guide hole, and the connecting rod of the fixing component on the second mounting frame passes through the second guide hole.

2. The laminated plate unit according to claim 1, characterized in that, The bottom wall of the first snap-fit ​​groove is provided with a first threaded hole, and the mating block is provided with a first through hole opposite to the first threaded hole. The first leveling component includes a first abutting part and a first threaded post connected to the first abutting part. The first threaded post passes through the first through hole and the first threaded hole, and the first abutting part abuts against the side of the mating block away from the first threaded hole.

3. The laminated plate unit according to claim 1 or 2, characterized in that, The bottom wall of the second snap-fit ​​groove is provided with a second threaded hole, and the mating block is provided with a second through hole opposite to the second threaded hole. The second leveling component includes a second abutting part and a second threaded post connected to the second abutting part. The second threaded post passes through the second through hole and the second threaded hole, and the second abutting part abuts against the side of the mating block away from the second threaded hole.

4. The laminated plate unit according to claim 1, characterized in that, The fixing component is provided at each corner of the first mounting frame and / or the second mounting frame.

5. The laminated plate unit according to claim 1, characterized in that, The first composite plate and / or the second composite plate are provided with a protective component inside, the protective component including a sound-absorbing layer, a heat-insulating coating, a wear-resistant and flame-retardant layer, a heat-insulating and flame-retardant layer and a heat-insulating and fireproof layer stacked together.

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