Multi-layer composite reflective insulation board and preparation method thereof

Abstract

The invention relates to the technical field of plates, in particular to a multi-layer composite reflection type heat preservation plate and a preparation method thereof.The multi-layer composite reflection type heat preservation plate comprises a heat preservation base plate, nanometer SiO micropore layers are fixed to the two sides of the heat preservation base plate, aluminum foil reflection layers are fixed to the sides, away from the heat preservation base plate, of the nanometer SiO micropore layers, and mounting bases are embedded in the four corners of the heat preservation base plate; the two mounting seats are connected through a traction assembly; the heat preservation base plate has the beneficial effects that after the two mounting bases are connected together through the connecting base, traction force between the two heat preservation base plates is concentrated on the mounting bases and the traction columns, the problem that the splicing position is broken due to traditional colloid connection is solved, and the firmness of the two heat preservation base plates after being spliced side by side is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of plate, in particular to a multi-layer composite reflective insulation board and a preparation method thereof. BACKGROUND

[0002] The multi-layer composite reflective insulation board is a high-performance insulation material based on micro / nano heat transfer technology, which is composed of nano-SiO2 and multi-layer aluminum foil. It realizes high-efficiency heat insulation by blocking heat conduction, heat convection and heat radiation. It has the characteristics of low thermal conductivity, high reflectivity, high temperature resistance, light weight and high strength, and is widely used in steel, petrochemical, building materials and other fields.

[0003] The traditional insulation board splicing method has many problems: Poor splicing firmness: when using colloid to connect the insulation board, the splicing part is prone to breakage due to the tension on both sides, making it difficult to ensure the firmness after side-by-side assembly. Weak impact resistance: when multiple insulation boards connected by colloid are impacted, one of them will deform and pull the splicing part of multiple insulation boards, increasing the amount of repair work. Inconvenient and environmentally unfriendly construction: the colloid connection method is not convenient for on-site rapid construction, and the use of colloid increases the formaldehyde content of the installation site. SUMMARY

[0004] The present application aims to provide a multi-layer composite reflective insulation board and a preparation method thereof to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a multi-layer composite reflective insulation board, comprising an insulation board, both sides of the insulation board are fixed with a nano-SiO2 microporous layer, the side of the nano-SiO2 microporous layer away from the insulation board is fixed with an aluminum foil reflection layer, the four corners of the insulation board are embedded with mounting seats, and two mounting seats are connected by a traction assembly. After two insulation boards are assembled side by side, the same connecting seat is inserted into the two mounting seats of the two insulation boards that are close together, the surface of the connecting seat is provided with two insertion slots, the two side walls of the insertion slot are inserted with a positioning handle, and the inside of the insertion slot is inserted with an insertion plate, one end of the insertion plate pushing the positioning handle is inserted into the surface of the mounting seat.

[0006] Preferably, the four corners of the insulation board are provided with a side groove, the mounting seat is fixed in the side groove, the height of the mounting seat is less than the height of the side groove, the mounting seat is in a "concave" plate-shaped structure, the groove body of the mounting seat is for the insertion of the connecting seat, the surface of the mounting seat is provided with a mounting slot for the insertion of the traction assembly, and the surface of the mounting slot is provided with a through hole two for the end of the traction assembly to pass through.

[0007] Preferably, the traction assembly comprises a traction column and studs fixed at both ends of the traction column, the surface of the edge slot is provided with a through hole I for inserting the traction column, the length of the traction column is equal to the depth of the through hole I, the studs are inserted into the installation slot after penetrating the corresponding through hole II, and one end of the stud is sleeved with a nut, after the nut and the stud are screwed and locked, the two mounting seats are tightly clamped and held after being pulled by the traction assembly.

[0008] Preferably, the connecting seat is in the shape of a "π" shaped plate structure, the two parallel side plates of the connecting seat are respectively inserted into the groove bodies of the two mounting seats, and the two parallel side plates of the connecting seat are integrally formed with a plug plate, the plug plate is in the shape of a "concave" shaped plate structure, the plug plate is inserted into the installation slot to cover the end of the traction assembly, and the side surface of the connecting seat is coplanar with the side wall of the heat preservation base plate after the connecting seat is inserted into the edge slot.

[0009] Preferably, the two parallel side walls of the insertion slot are each provided with an insertion port, and the groove body of the mounting seat is provided with a positioning groove on the two parallel side walls, the insertion port and the corresponding positioning groove are communicated after the connecting seat is inserted into the mounting seat, and one end of the positioning handle is inserted into the positioning groove after the positioning handle is pushed and squeezed into the insertion port by the plug plate.

[0010] Preferably, the plate width of the positioning handle is greater than the depth of the insertion port, one end of the positioning handle is provided with a missing slot, the surface of the missing slot is fixed with an elastic rubber belt, and the two ends of the elastic rubber belt are respectively fixed on the top surface of the insertion port and the bottom surface of the insertion port, the positioning handle stretches the elastic rubber belt to produce elastic deformation when the positioning handle is pushed and squeezed by the plug plate, and the other end of the positioning handle is provided with an inclined surface on the side facing the insertion slot.

[0011] Preferably, the height of the plug plate is equal to the depth of the insertion slot, the plug plate is provided with a picking slot on the side extending out of the insertion slot, and the surface of the picking slot is fixed with a pull ring.

[0012] Preferably, the two sides of the plug plate are each fixed with a rubber clamping strip, the rubber clamping strip is in the shape of a circular arc strip, the two parallel side walls of the insertion slot are each provided with a clamping slot, and the rubber clamping strip is inserted into the clamping slot after the plug plate is inserted into the insertion slot.

[0013] A preparation method of a multi-layer composite reflective insulation board, comprising the following steps: Pre-embedding mounting seats at four corners of the heat preservation base plate, then bonding and fixing nano-SiO2 microporous layers on both sides of the heat preservation base plate, and the surface of the nano-SiO2 microporous layer is bonded and fixed with an aluminum foil reflective layer, thereby forming a multi-layer composite reflective insulation board with embedded mounting seats; The application discloses a connecting seat for connecting two installation seats, and the connecting seat meets the requirement of being inserted into two installation seats which are arranged side by side, and a slot is formed in the surface of the connecting seat in advance, and a positioning handle is arranged on the side wall of the connecting seat, the positioning handle is moved by pushing the positioning handle through inserting a plug into the slot, the positioning handle is moved to the outside of the connecting seat, and when the connecting seat is inserted into the installation seat, the positioning handle is inserted into the surface of the installation seat, so that two installation seats are quickly connected through the connecting seat, and the two thermal insulation substrates are arranged side by side.

[0014] Compared with the prior art, the application has the beneficial effects that: The two thermal insulation substrates are connected through the installation seat and the connecting seat, the traction force between the two thermal insulation substrates is concentrated on the installation seat and the traction column, the traditional colloid connection is avoided, the problem of fracture at the joint is solved, and the firmness of the two thermal insulation substrates arranged side by side is ensured.

[0015] The impact resistance is enhanced, the traction force generated by the impact force of one thermal insulation substrate is concentrated on the connecting positions of the two sides of the thermal insulation substrate, compared with the traditional colloid connection, the situation that the joint of a plurality of thermal insulation substrates is fractured due to the deformation of one thermal insulation substrate is avoided, and a large amount of repair work is reduced.

[0016] The application is convenient for on-site construction and environmental protection, the combination of the installation seat and the connecting seat is convenient for on-site rapid construction, the use of colloid is reduced, and the formaldehyde content of the thermal insulation substrate installation site is reduced to a certain extent. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The application is a structural schematic view; Figure 2 The application is Figure 1 The application is a structural enlarged schematic view of B; Figure 3 The application is Figure 1 The application is a structural enlarged schematic view of C; Figure 4 The application is Figure 1 The application is a structural sectional view of A-A; Figure 5 The application is Figure 4 The application is a structural enlarged schematic view of D; Figure 6 The application is Figure 5 The application is a structural enlarged schematic view of E; Figure 7 The application is a connecting structure schematic view of a thermal insulation substrate and an installation seat; Figure 8 The application is a structural schematic view of a thermal insulation substrate; Figure 9The structure diagram of the mounting seat of the present application is shown in the figure. Figure 10 The structure diagram of the connecting seat of the present application is shown in the figure. Figure 11 The structure diagram of the positioning handle of the present application is shown in the figure. Figure 12 The structure diagram of the plug-in plate of the present application is shown in the figure.

[0018] In the figure: heat preservation base plate 1, side groove 101, perforation 102, nano-SiO2 microporous layer 2, aluminum foil reflection layer 3, mounting seat 4, mounting groove 401, perforation 402, positioning groove 403, traction column 5, stud 501, nut 502, connecting seat 6, plug-in groove 601, clamping groove 6011, plug-in port 602, plug-in plate 603, positioning handle 7, missing groove 701, elastic rubber belt 702, plug-in plate 8, rubber clamping strip 801, picking groove 802, pull ring 803. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme of the present application clear, complete and the advantages more clear and obvious, the embodiments of the present application are further described in detail below in combination with the drawings. It should be understood that the specific embodiments described here are part of the embodiments of the present application, not all the embodiments, which are used to explain the embodiments of the present application, and do not limit the embodiments of the present application, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the present application.

[0020] Embodiment one, please refer to Figures 1-12 The present application provides a technical scheme: a multilayer composite reflective insulation board, comprising a heat preservation base plate 1, both sides of the heat preservation base plate 1 are fixed with a nano-SiO2 microporous layer 2, and the nano-SiO2 microporous layer 2 is fixed with an aluminum foil reflection layer 3 on the side away from the heat preservation base plate 1; wherein the heat preservation base plate 1 can adopt rock wool board or honeycomb board, the nano-SiO2 microporous layer 2 has very low thermal conductivity (0.016-0.024 W / m·K), the thermal conduction is reduced by inhibiting the thermal motion of gas molecules through nano-scale pores, the reflectivity of the aluminum foil reflection layer 3 reaches more than 87%, effectively blocking thermal radiation, at the same time forming airtight air layer, inhibiting heat convection, the multilayer composite reflective insulation board composed of the heat preservation base plate 1, the nano-SiO2 microporous layer 2 and the aluminum foil reflection layer 3 can be used for insulation in the fields of steel, petrochemical, building materials, cold storage and the like.

[0021] In order to realize the firm installation of the mounting seat 4 at the corners of the heat preservation base plate 1, the following is proposed: The mounting seat 4 is embedded at each corner of the heat preservation substrate 1, and two mounting seats 4 are connected through a traction assembly. The heat preservation substrate 1 is provided with a side slot 101 at each corner, the mounting seat 4 is fixed in the side slot 101, the height of the mounting seat 4 is less than the height of the side slot 101, the mounting seat 4 is in a concave-shaped plate structure, the slot body of the mounting seat 4 is used for inserting the connecting seat 6, the surface of the mounting seat 4 is provided with a mounting slot 401 for inserting the traction assembly, the surface of the mounting slot 401 is provided with a through hole two 402 for penetrating the end of the traction assembly; the traction assembly includes a traction column 5 and a threaded column 501 fixed at both ends of the traction column 5, the surface of the side slot 101 is provided with a through hole one 102 for inserting the traction column 5, the rod length of the traction column 5 is equal to the depth of the through hole one 102, the threaded column 501 penetrates the corresponding through hole two 402 and extends into the mounting slot 401, one end of the threaded column 501 is sleeved with a nut 502, after the nut 502 is screwed and locked with the threaded column 501, the two mounting seats 4 are tightly clamped on the heat preservation substrate 1 after being pulled by the traction assembly.

[0022] The specific operation of installing the mounting seat 4 is as follows: The traction column 5 is inserted into the through hole one 102 in advance, at this time, the threaded column 501 at the end of the traction column 5 extends into the side slot 101, then the mounting seats 4 on the upper and lower sides are respectively inserted into the side slots 101 on the upper and lower sides of the heat preservation substrate 1, the threaded column 501 penetrates the corresponding through hole two 402, the nut 502 is sleeved and screwed on the corresponding threaded column 501 and is screwed and locked, so that the two mounting seats 4 are firmly installed in the corresponding side slots 101.

[0023] In order to realize the connection of the two mounting seats 4 which are side by side together by using the connecting seat 6, the following is proposed: Two said heat preservation base plate 1 side by side after assembling, two heat preservation base plate 1 on the two mounting seat 4 inserted with the same connecting seat 6, connecting seat 6 is "π" shaped plate structure, the two parallel distribution of connecting seat 6 side plate is inserted in the groove of two mounting seat 4, and the two parallel distribution of connecting seat 6 side plate is integrally formed with the plug plate 603, plug plate 603 is "concave" shaped plate structure, plug plate 603 is inserted into the installation groove 401 covering the end of the traction assembly, and the connecting seat 6 is inserted into the side groove 101, the side surface of the connecting seat 6 and the side wall of the heat preservation base plate 1 are coplanar. The surface of connecting seat 6 is provided with two insertion slots 601, the two side walls of insertion slot 601 are inserted with positioning handle 7, the inside of insertion slot 601 is inserted with plug plate 8, one end of plug plate 8 inserted in the surface of mounting seat 4 is pushed by positioning handle 7; the two parallel distribution of insertion slot 601 side wall is provided with insertion port 602, the groove of mounting seat 4 is provided with positioning groove 403 on the two parallel distribution of side wall, the insertion port 602 and the corresponding positioning groove 403 are communicated after the connecting seat 6 is inserted into the mounting seat 4, one end of positioning handle 7 is inserted into the positioning groove 403 after the positioning handle 7 is pushed into the insertion port 602 by the plug plate 8; the plate width of positioning handle 7 is greater than the depth of insertion port 602, the positioning handle 7 is provided with a slot 701 at one end, the surface of slot 701 is fixed with elastic rubber belt 702, the two ends of elastic rubber belt 702 are fixed on the top surface of insertion port 602 and the bottom surface of insertion port 602 respectively, the positioning handle 7 is stretched when the positioning handle 7 is pushed by the plug plate 8, the other end of the positioning handle 7 is provided with an inclined surface on the side of the slot of insertion slot 601; the height of plug plate 8 is equal to the depth of insertion slot 601, the plug plate 8 is provided with a slot 802 on the side of the insertion slot 601, the surface of slot 802 is fixed with a pull ring 803; the two sides of plug plate 8 are fixed with rubber clamping strip 801, the rubber clamping strip 801 is arc shaped strip, the two parallel distribution of side wall of insertion slot 601 is provided with clamping groove 6011, the rubber clamping strip 801 is inserted into the clamping groove 6011 after the plug plate 8 is inserted into the insertion slot 601.

[0024] Two mounting seats 4 are connected by connecting seat 6, and the operation of two heat preservation base plates 1 splicing and fixing is as follows: After two thermal insulation substrates 1 with mounting seats 4 embedded at the corners are placed side by side, the connecting seat 6 is inserted into the two edge grooves 101 between the two thermal insulation substrates 1, at this time, the two parallel side plates of the connecting seat 6 are inserted into the groove bodies of the two mounting seats 4 respectively, and the plug plate 603 is inserted into the mounting groove 401 to cover the stud 501 and the nut 502; in order to fix the connecting seat 6 on the two mounting seats 4, the two plug plates 8 are pushed into the two plug grooves 601 respectively, when the plug plate 8 is not pushed in, the elastic rubber belt 702 is in the initial state, the other end of the positioning handle 7 is inserted into the plug groove 601 and pulled by the elastic rubber belt 702, in the process of pushing the plug plate 8 into the plug groove 601, the plug plate 8 pushes the positioning handle 7 along the inclined surface, the positioning handle 7 is retracted into the plug opening 602, and at the same time, the positioning handle 7 stretches the elastic rubber belt 702 to produce elastic deformation, and one end of the positioning handle 7 is inserted into the positioning groove 403, so that the positioning handle 7 forms a connecting structure between the connecting seat 6 and the mounting seat 4, and the rubber clamping strip 801 is inserted into the clamping groove 6011 to prevent the plug plate 8 from falling off the plug groove 601; when it is necessary to remove the connecting seat 6, the hand-held pull ring 803 pulls the plug plate 8 out of the plug groove 601, after the plug plate 8 and the positioning handle 7 are dislocated, the elastic rubber belt 702 rebounds to pull the positioning handle 7 to move, one end of the positioning handle 7 is pulled out of the positioning groove 403, at this time, the connection of the positioning handle 7 to the mounting seat 4 and the connecting seat 6 is cancelled, and the connecting seat 6 can be pulled out of the two mounting seats 4.

[0025] It should be particularly pointed out that after the connecting seat 6 connects the two mounting seats 4 together, the pulling force between the two thermal insulation substrates 1 is concentrated on the mounting seat 4 and the pulling column 5, thereby avoiding the problem that the joint between the two thermal insulation substrates 1 connected by the traditional colloid is broken due to the pulling force on both sides, that is, the firmness of the two thermal insulation substrates 1 after being assembled side by side is ensured; and after a plurality of thermal insulation substrates 1 are connected side by side by the mounting seat 4 and the connecting seat 6, when one of the thermal insulation substrates 1 is impacted, the pulling force generated by the impact is cut off at the joints on both sides of the thermal insulation substrate 1, compared with the plurality of thermal insulation substrates 1 connected by the traditional colloid, the joints between a plurality of thermal insulation substrates 1 are prevented from being broken due to the impact and deformation of one thermal insulation substrate 1, and a large amount of repair work is avoided; and the combined connection form of the mounting seat 4 and the connecting seat 6 is more convenient for on-site rapid construction and reduces the use of colloid, thereby reducing the formaldehyde content of the thermal insulation substrate 1 installation site to a certain extent.

[0026] In the embodiment two, on the basis of the embodiment one, a use method of the multi-layer composite reflective insulation board is provided, including the following steps: I. Structure and characteristics of the insulation board The multi-layer composite reflective insulation board is composed of a thermal insulation substrate 1, a nano-SiO2 microporous layer 2 and an aluminum foil reflective layer 3. The thermal insulation substrate 1 can be a rock wool board (density range 80-120 kg / m 3, thickness 20-50mm) or honeycomb plate (honeycomb side length 5-10mm, thickness 15-40mm); the nano-SiO2 microporous layer 2 has extremely low thermal conductivity, between 0.016-0.024 W / m·K, inhibits the thermal movement of gas molecules through nano-scale pores, and reduces heat conduction; the aluminum foil reflective layer 3 has reflectivity of 87% or more, effectively blocks thermal radiation, and at the same time forms a sealed air layer to inhibit heat convection. The insulation board can be used in the fields of steel, petrochemical, building materials, cold storage, etc., with a working temperature range of -50℃-150℃, and can effectively reduce heat loss by 30%-50%.

[0027] II. Mounting of the mounting seat (I) Preparation work Ensure that the edge groove 101 has been opened at the corners of the insulation substrate 1, and the size of the edge groove 101 is designed according to the size of the mounting seat 4. Generally, the depth of the edge groove 101 is the height of the mounting seat 4 plus a reserved operating space (about 2-5mm), and the width is adapted to the width of the mounting seat 4 (with an error of ±1mm or less). Prepare the traction assembly, and the length of the traction column 5 is determined according to the depth of the first through hole 102 (equal to the depth of the first through hole 102), the diameter of the stud 501 is adapted to the diameter of the second through hole 402 (with an error of ±0.5mm or less), and the size of the nut 502 matches the stud 501.

[0028] (II) Installation steps Insert the traction column 5 into the first through hole 102 in advance, and at this time the stud 501 at the end of the traction column 5 extends into the edge groove 101. When inserting, ensure that the traction column 5 is coaxial with the first through hole 102, and the insertion depth meets the design requirements.

[0029] Then insert the mounting seat 4 on the upper and lower sides of the insulation substrate 1 into the edge groove 101 on the upper and lower sides of the insulation substrate 1, respectively, so that the stud 501 penetrates the corresponding second through hole 402. When the mounting seat 4 is inserted, it should be ensured that it is tightly fitted with the edge groove 101 without gaps.

[0030] Screw the nut 502 onto the corresponding stud 501, and use a wrench of appropriate size (generally torque of 5-10 N·m) to tighten. When tightening, apply uniform force to ensure that the nut 502 is firmly connected to the stud 501, so that the two mounting seats 4 are firmly installed in the corresponding edge groove 101.

[0031] III. Splicing of the insulation board (I) Preparation work Prepare the connecting seat 6, which is in the shape of a "π" shaped plate structure, and its size is designed according to the size of the groove body of the mounting seat 4 to ensure smooth insertion. At the same time, prepare the plug-in plate 8 and the positioning handle 7, and the height of the plug-in plate 8 is equal to the depth of the insertion slot 601 (with an error of ±0.5mm or less), and the size of the positioning handle 7 is adapted to the size of the insertion port 602 and the positioning groove 403.

[0032] (II) Splicing steps Two thermal insulation substrates 1 with mounting seat 4 embedded at the corner are placed side by side, and the joint gap between the two substrates is controlled within 1-3mm.

[0033] The connecting seat 6 is inserted into the two edge grooves 101 between the two thermal insulation substrates 1, at this time, the two parallel side plates of the connecting seat 6 are inserted into the groove of the two mounting seats 4 respectively, and the plug plate 603 is inserted into the mounting groove 401 to cover the stud 501 and the nut 502. During insertion, ensure that the connecting seat 6 is tightly connected with the mounting seat 4 without shaking.

[0034] In order to fix the connecting seat 6 on the two mounting seats 4, the two plug plates 8 are pushed into the two plug grooves 601 respectively. During pushing, the plug plate 8 pushes the positioning handle 7 along the inclined surface of the positioning handle 7, the positioning handle 7 is retracted into the plug opening 602, and at the same time, the positioning handle 7 stretches the elastic rubber belt 702 to produce elastic deformation, and one end of the positioning handle 7 is inserted into the positioning groove 403. When the plug plate 8 is inserted, it should be kept vertical to ensure that the rubber clamping strip 801 can be smoothly inserted into the clamping groove 6011, and the interference amount between the rubber clamping strip 801 and the clamping groove 6011 is controlled within 0.2-0.5mm. In this way, the positioning handle 7 forms a connecting structure between the connecting seat 6 and the mounting seat 4, and the rubber clamping strip 801 is inserted into the clamping groove 6011 to avoid the plug plate 8 from falling off from the plug groove 601.

[0035] Four, dismounting the connecting seat When it is necessary to dismount the connecting seat 6, the pull ring 803 is pinched by hand, the pulling force is controlled within 5-10N, and the plug plate 8 is pulled out of the plug groove 601. After the plug plate 8 and the positioning handle 7 are dislocated, the elastic rubber belt 702 rebounds to pull the positioning handle 7 to move, one end of the positioning handle 7 is pulled out of the positioning groove 403, at this time, the connection of the positioning handle 7 to the mounting seat 4 and the connecting seat 6 is cancelled, and the connecting seat 6 is pulled out of the two mounting seats 4.

[0036] After the connecting seat 6 connects the two mounting seats 4 together, the traction force between the two thermal insulation substrates 1 is concentrated on the mounting seat 4 and the traction column 5. Through actual test, the connection mode can withstand a pulling force of 500-1000N, thereby avoiding the rupture of the splicing part of the two thermal insulation substrates 1 connected by the traditional colloid due to the pulling force on both sides (the pulling force that can be withstood by the colloid connection is generally 200-500N), that is, the firmness of the two thermal insulation substrates 1 after being spliced side by side is ensured. Moreover, after one of the plurality of thermal insulation substrates 1 is subjected to an impact force (the impact force is within the range of 100-300N), the traction force generated is cut off at the connecting part on both sides of the thermal insulation substrate 1. Compared with the plurality of thermal insulation substrates 1 connected by the traditional colloid, the rupture of the splicing part of the plurality of thermal insulation substrates 1 due to the deformation of one thermal insulation substrate 1 subjected to an impact force is avoided, and a large amount of repair work is generated. Moreover, the combined connection form of the mounting seat 4 and the connecting seat 6 is more convenient for on-site rapid construction, and one skilled worker can complete the splicing and installation of 5-10 square meters of thermal insulation board per hour, reduces the use of colloid, and thus reduces the formaldehyde content (after detection, the formaldehyde content on site after using the connection mode can be reduced to 0.05-0.1mg / m 3 , which is much lower than the 0.2-0.5mg / m 3 ) of the thermal insulation substrate 1 installation site.

[0037] In Example Three, on the basis of Example Two, a preparation method of a multi-layer composite reflective thermal insulation board is provided, which comprises the following steps: Pre-embed the mounting seat 4 at the four corners of the thermal insulation substrate 1, then bond and fix the nano-SiO2 microporous layer 2 on both sides of the thermal insulation substrate 1, and the surface of the nano-SiO2 microporous layer 2 is bonded and fixed with the aluminum foil reflective layer 3, thereby forming the multi-layer composite reflective thermal insulation board with the embedded mounting seat 4. Pre-fabricate the connecting seat 6 for connecting the two mounting seats 4, so that the connecting seat 6 can be inserted into the two mounting seats 4 which are side by side, and pre-fabricate the slot 601 on the surface of the connecting seat 6, and insert the positioning handle 7 on the side wall of the connecting seat 6, and move the positioning handle 7 by inserting the plug 8 into the slot 601, so that the positioning handle 7 moves outwardly from the connecting seat 6, and when the connecting seat 6 is inserted into the mounting seat 4, the outwardly moving positioning handle 7 is inserted into the surface of the mounting seat 4, thereby completing the rapid connection of the two mounting seats 4 through the connecting seat 6, that is, completing the side-by-side splicing of the two thermal insulation substrates 1.

[0038] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A multi-layer composite reflective insulation board, comprising an insulation substrate (1), a nano-SiO2 microporous layer (2) is fixed on both sides of the insulation substrate (1), and an aluminum foil reflective layer (3) is fixed on the side of the nano-SiO2 microporous layer (2) away from the insulation substrate (1), characterized in that: The mounting seat (4) is embedded at each corner of the heat preservation substrate (1), and two mounting seats (4) are connected by a traction assembly; After two heat preservation substrates (1) are assembled side by side, a same connecting seat (6) is inserted on two mounting seats (4) abutting each other, the surface of the connecting seat (6) is provided with two insertion grooves (601), the two side walls of the insertion groove (601) are provided with a positioning handle (7), the inside of the insertion groove (601) is provided with an insertion plate (8), and one end of the insertion plate (8) that pushes and extrudes the positioning handle (7) is inserted on the surface of the mounting seat (4).

2. A multi-layer composite reflective insulation panel according to claim 1, wherein: The edge groove (101) is arranged at each corner of the heat preservation substrate (1), the mounting seat (4) is fixed in the edge groove (101), the height of the mounting seat (4) is less than the height of the edge groove (101), the mounting seat (4) is in a "concave" plate-shaped structure, the groove body of the mounting seat (4) is used for inserting the connecting seat (6), the surface of the mounting seat (4) is provided with a mounting groove (401) for inserting the traction assembly, and the surface of the mounting groove (401) is provided with a through hole two (402) for penetrating the end of the traction assembly.

3. A multi-layer composite reflective insulation panel according to claim 2, wherein: The traction assembly comprises a traction column (5) and a screw column (501) fixed at both ends of the traction column (5), the surface of the edge groove (101) is provided with a through hole one (102) for inserting the traction column (5), the length of the traction column (5) is equal to the depth of the through hole one (102), the screw column (501) penetrates through the corresponding through hole two (402) and extends into the mounting groove (401), one end of the screw column (501) is sleeved with a nut (502), after the nut (502) and the screw column (501) are screwed and locked, the two mounting seats (4) are tightly clamped on the heat preservation substrate (1) after being pulled by the traction assembly.

4. The multi-layer composite reflective insulation panel of claim 2, wherein: The connecting seat (6) is in a "π" plate-shaped structure, the two parallel side plates of the connecting seat (6) are inserted in the groove bodies of the two mounting seats (4) respectively, and the two parallel side plates of the connecting seat (6) are integrally formed with a plug plate (603), the plug plate (603) is in a "concave" plate-shaped structure, the plug plate (603) is inserted into the mounting groove (401) to cover the end of the traction assembly, and the surface of one side of the connecting seat (6) is coplanar with the side wall of the heat preservation substrate (1) after the connecting seat (6) is inserted into the edge groove (101).

5. The multi-layer composite reflective insulation panel of claim 1, wherein: The two parallel side walls of the insertion groove (601) are provided with an insertion port (602), the groove body of the mounting seat (4) is provided with a positioning groove (403) on the two parallel side walls, the insertion port (602) and the corresponding positioning groove (403) are communicated after the connecting seat (6) is inserted into the mounting seat (4), and one end of the positioning handle (7) is inserted into the positioning groove (403) after the positioning handle (7) is pushed into the insertion port (602) by the insertion plate (8).

6. A multi-layer composite reflective insulation panel according to claim 5, wherein: The plate width of the positioning handle (7) is greater than the depth of the socket (602), a notch (701) is formed at one end of the positioning handle (7), and an elastic rubber belt (702) is fixed on the surface of the notch (701), the two ends of the elastic rubber belt (702) are fixed on the top surface of the socket (602) and the bottom surface of the socket (602) respectively, when the positioning handle (7) is pushed by the plug plate (8), the elastic rubber belt (702) is stretched and elastically deformed, and the other end of the positioning handle (7) is provided with an inclined surface on the side facing the slot (601).

7. The multi-layer composite reflective insulation panel of claim 1, wherein: The height of the plug plate (8) is equal to the depth of the slot (601), and a picking groove (802) is formed on the side of the plug plate (8) extending out of the slot (601), and a pull ring (803) is fixed on the surface of the picking groove (802).

8. The multi-layer composite reflective insulation panel of claim 1, wherein: The plug plate (8) is fixed with rubber clamping strips (801) on both sides, the rubber clamping strips (801) are arc-shaped strips, and clamping grooves (6011) are formed on the two parallel side walls of the slot (601), after the plug plate (8) is inserted into the slot (601), the rubber clamping strips (801) are inserted into the clamping grooves (6011).

9. A method for producing a multilayer composite reflective insulation panel, for producing the multilayer composite reflective insulation panel according to claim (1), characterized in that: The preparation method comprises the following steps: Pre-embedded mounting seat (4) is installed at four corners of the heat preservation base plate (1), then nano-SiO2 microporous layer (2) is bonded and fixed on both sides of the heat preservation base plate (1), and the surface of the nano-SiO2 microporous layer (2) is bonded and fixed with an aluminum foil reflection layer (3), thereby forming a multi-layer composite reflection type heat preservation plate with embedded mounting seat (4); The connecting seat (6) used for connecting two mounting seats (4) is prefabricated, so that the connecting seat (6) can be inserted into two mounting seats (4) arranged side by side, a slot (601) is formed on the surface of the connecting seat (6), and a positioning handle (7) is inserted into the side wall of the connecting seat (6), the positioning handle (7) is moved by pushing the plug plate (8) inserted into the slot (601), so that the positioning handle (7) moves outward of the connecting seat (6), when the connecting seat (6) is inserted into the mounting seat (4), the outwardly moving positioning handle (7) is inserted into the surface of the mounting seat (4), the two mounting seats (4) are quickly connected through the connecting seat (6), and the two heat preservation base plates (1) are assembled side by side.

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