Self-locking thermal insulation layer thermal insulation composite board structure

Abstract

The utility model relates to the technical field of air -setting felt structure discloses self -locking heat preservation composite board structure of heat preservation layer, including the heat preservation layer formed by aerogel heat preservation material, the first board spare and the wrapping layer of setting in the both sides of heat preservation layer, card piece, card piece includes the snap ring and the card cylinder, the crown cap is set to card cylinder end, the snap ring is provided with the card slot corresponding to the crown cap, and the card cylinder passes through the first board spare and heat preservation layer in proper order and is connected with the snap ring, and the snap ring is connected with the screw rod simultaneously with the card cylinder. Make aerogel heat preservation material not appear dust drop in the use process, do not harm health.

Description

Technical Field

[0001] This utility model relates to the field of aerocondensed felt structure technology, specifically to a self-locking thermal insulation layer composite board structure. Background Technology

[0002] Aerogel, as a novel functional material with a three-dimensional nanoporous structure, has attracted much attention due to its excellent properties such as extremely low thermal conductivity, high porosity, and low density. Among them, aerogel felt is a flexible thermal insulation material made by combining nano-silica as the main substrate with carbon fiber, ceramic glass fiber, or pre-oxidized fiber felt through special processes. It has a very broad application space in the field of thermal insulation and has been widely used in many fields such as construction, industrial pipelines, and new energy.

[0003] However, when aerogel felt is applied to building interior insulation projects, dust is easily shed during use due to the nanoscale pores and loose structure on the surface of the aerogel felt. This not only adversely affects the stability of the material's insulation performance but also pollutes indoor air. Long-term exposure to such an environment may pose potential health risks to the respiratory system. To address these issues, we propose a snap-fit ​​aerogel felt structure. Utility Model Content

[0004] The present invention aims to provide a self-locking thermal insulation layer composite board structure to solve the problem that aerocondensed felt is prone to dust shedding during use, which not only adversely affects the stability of the material's thermal insulation performance but also pollutes indoor air.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a self-locking thermal insulation composite board structure, comprising a thermal insulation layer formed of aerogel thermal insulation material, a first plate and a wrapping layer disposed on both sides of the thermal insulation layer, and a locking component, the locking component comprising a locking ring and a locking cylinder, the end of the locking cylinder being provided with a crown-shaped cap, the locking ring being provided with a locking groove corresponding to the crown-shaped cap, the locking cylinder sequentially passing through the first plate and the thermal insulation layer and engaging with the locking ring, the locking ring and the locking cylinder being simultaneously connected with a screw.

[0006] The beneficial effects of this solution are as follows: by wrapping the insulation layer with the wrapping layer, the insulation layer and the fasteners can be bound together as a whole, avoiding the aerosol felt from powdering or cracking due to looseness. At the same time, the wrapping layer has a certain degree of toughness and can expand and contract with the slight deformation of the aerosol felt, which does not restrict the normal state of the aerosol felt and can improve the tear resistance of the overall structure. The composite board can significantly shorten the assembly time and is suitable for large-scale production or rapid on-site construction.

[0007] Preferably, the wrapping layer is a mixture of an air-barrier membrane or a reinforcing mesh and mortar, with the retaining ring located on the inner or outer side of the wrapping layer, and the wrapping layer having a U-shaped cross-section that wraps around the edge of the aerosol felt.

[0008] Preferably, the wrapping layer is a second plate, which has a number of fixing holes for inserting the retaining ring. The edge of the insulation layer is wrapped with a mixture of air-tight membrane or reinforcing mesh and mortar. The retaining sleeve includes a positioning tube disposed on the first plate and an expansion tube disposed at the end of the positioning tube, with a crown cap disposed at the end of the expansion tube.

[0009] Preferably, as an improvement, the first panel serves as the finishing layer, the second panel serves as the connecting layer, the second panel is used to connect to the base wall, the base wall is fixedly provided with several hangers at equal intervals, and the upper and lower edges of the second panel are fixedly provided with L-shaped hooks, which are interlocked with the hangers to suspend the second panel on the base wall.

[0010] The beneficial effects of this solution are as follows: the hangers with equal spacing between the base wall can be hooked with the hooks at the top and bottom of the second plate to suspend the second plate on the base wall. Since the connecting parts set between the first plate and the second plate are of the same model, the flatness between the first plate and the second plate can be guaranteed.

[0011] Preferably, as an improvement, the base wall is movably connected with hangers at equal intervals, the first panel serves as a connecting layer, the second panel serves as a finishing layer, the base wall is movably connected with several hangers at equal intervals, and the upper and lower edges of the first panel are also fixedly provided with L-shaped hooks, which are interlocked with the hangers to suspend the first panel on the base wall.

[0012] The beneficial effects of this solution are as follows: the hanger is movably connected to the base wall. When the base wall is not flat, the first panel needs to be leveled over a large area after it is installed on the base wall. At this time, the flatness of the first panel can be adjusted over a large area by adjusting the relative position of the hanger on the base wall.

[0013] Preferably, as an improvement, the positioning tube is installed through the first plate. The positioning tube includes a leveling tube located between the first plate and the base wall and a guide tube located between the first plate and the second plate. The leveling tube and the guide tube are connected. An expansion tube is connected to the guide tube. The leveling tube is located below the hook and the end of the leveling tube abuts against the hanger.

[0014] The beneficial effects of this solution are as follows: the hanger adjusts the first plate in a localized area to achieve leveling. As the hanger moves perpendicular to the base wall, a certain angle is created between the hook and the hanger, causing relative rotation. At this time, the hook exerts a pulling force on the hanger in an inclined direction. Since the end of the leveling pipe abuts against the hanger, the leveling pipe can share the inclined pulling force, thus preventing the hanger from deforming under tension for a long time. In addition, when the base wall is inclined, the hook also exerts an inclined pulling force on the hanger. At this time, the leveling pipe can also share part of the inclined pulling force, thus protecting the hanger from deformation under tension for a long time.

[0015] Preferably, as an improvement, the hanger includes an L-shaped hook at the top and a leveling mechanism at the bottom. The leveling mechanism includes a positioning plate for fixed connection with the base wall and an adjusting tube slidably connected to the positioning plate. The outer ring of the adjusting tube is provided with a corrugated groove, and the hook is fixedly connected to the adjusting tube.

[0016] The beneficial effects of this solution are as follows: the hook and the adjusting tube are fixedly connected, so when installing the first plate, it is necessary to level the first plate over a large range. At this time, manually pushing and pulling the first plate will cause the first plate to drive the adjusting tube to slide on the positioning plate, thereby leveling the first plate over a large range. This can ensure the ease of operation and the simplicity of the structure, and can also ensure that a flat first plate can be provided for the installation of the second plate.

[0017] Preferably, as an improvement, the positioning plate has an adjustment hole for the adjustment tube to slide, and the positioning plate is radially slidably connected to the adjustment hole with an adjustment block. A first spring is connected between the adjustment block and the first plate, and the first spring is used to push the adjustment block against the corrugated groove.

[0018] The beneficial effects of this solution are as follows: When the first plate is leveled by the connecting bracket, the first plate is pushed and pulled, and the first plate drives the adjusting tube to slide on the positioning plate. At this time, the adjusting block on the positioning plate is pushed into the corrugated groove of the outer ring of the adjusting tube under the action of the first spring. Since the connection between the corrugated groove and the outer wall of the adjusting tube is smoothly set, the adjusting block can be squeezed out of the corrugated groove under the pressure of the groove wall during the sliding process of the adjusting tube. When the next corrugated groove is aligned with the adjusting block, the adjusting block is pushed into the corrugated groove again by the first spring. This cycle repeats, so the leveling result of the first plate can be fixed each time, improving the leveling efficiency.

[0019] Preferably, as an improvement, the adjusting block includes a front semi-circular locking block and a rear triangular plate. The inner diameter of the leveling tube cross-section ring is larger than the outer diameter of the leveling tube cross-section ring. The leveling tube is sleeved on the adjusting tube. The leveling tube squeezes the triangular plate to drive the locking block to break through the bottom of the corrugated groove. The first spring is used to push the adjusting block into the tube of the adjusting tube.

[0020] The beneficial effects of this solution are as follows: the adjusting tube is made of brittle material. Throughout the leveling process, the leveling tube is always sleeved on the adjusting tube. After the first plate is leveled, it is necessary to fix the flatness of the first plate. At this time, simply press the first plate with force. The first plate will drive the leveling tube to move relative to the adjusting tube. The end of the leveling tube will interact with the inclined surface of the triangular plate, thereby driving the adjusting block to break through the bottom of the corrugated groove, thus locking the adjusting tube on the positioning plate. This ensures that the adjusting tube will not slide relative to the positioning plate, and therefore ensures that the adjusting tube will not cause the hanging part to change position relative to the wall.

[0021] Preferably, as an improvement, a leveling column is slidably connected inside the positioning tube. The length of the leveling column is less than the length of the positioning tube. A second spring is connected between the leveling column and the positioning tube. The second spring is used to drive the leveling column to abut against the end of the adjusting tube. A screw is used to drive the leveling column to slide inside the positioning tube and abut against the end of the adjusting tube.

[0022] The beneficial effects of this solution are as follows: When installing the second plate, the screw is sequentially screwed into the retaining ring, expansion tube, guide tube, and leveling tube. The expansion tube and guide tube are located between the second and first plates, and an insulation layer is provided between them. The density of the insulation layer varies throughout. When the screw is screwed into the expansion tube, it expands within the insulation layer. This expansion causes the retaining ring to expand, allowing its outer ring to abut against the fixing hole. However, if the expansion tube expands asymmetrically due to uneven stress within the insulation layer, the retaining ring will be asymmetrically opened. This will cause a slight deformation of the second plate at the fixing hole on its edge, resulting in a slight unevenness in the second plate at the fixing hole. Although this is minor... While the issue may seem minor, the root cause is uneven local stress. Prolonged uneven stress can lead to localized breakage of the second plate. Therefore, simply rotating the screw causes the leveling column to slide within the positioning tube. The leveling column abuts against the top of the adjusting tube, locking the adjusting tube to the positioning plate. This relative sliding between the leveling column and the adjusting tube changes the angle between the hanger and the hook. This change in angle between the hook and the hanger results in a slight change in the flatness of the first plate. Since the insulation layer between the first and second plates is compressed, this slight change in flatness is transmitted to the second plate, resulting in more even local stress on the second plate and leveling off any unevenness, thus preventing localized breakage of the second plate. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall installation structure of Embodiment 3 of this utility model; Figure 2 for Figure 1 A partial structural diagram of the clamp connection at point A in the middle; Figure 3 This is a planar exploded structural diagram of the engagement of the retaining sleeve, retaining ring, and screw in an embodiment of this utility model; Figure 4 This is a schematic diagram of the overall installation structure of Embodiment 4 of this utility model; Figure 5 This is a planar exploded structural diagram of the installation of the hanger, the first plate, and the second plate in Embodiment 4 of this utility model. Figure 6 This is embodiment 4 of the present utility model. Figure 4 A partial structural diagram of the engagement between the clamp and the screw at point B; Figure 7 for Figure 5 A partial structural diagram of the adjustment tube and positioning plate at point C. Detailed Implementation

[0024] The following detailed description illustrates the specific implementation method: The reference numerals in the accompanying drawings include: base wall 1, hanger 11, hook 111, leveling mechanism 112, positioning plate 1121, adjusting pipe 1122, corrugated groove 1123, adjusting hole 1124, adjusting block 1125, locking block 11251, triangular plate 11252, first spring 1126, first plate 2, locking cylinder 21, positioning pipe 211, leveling pipe 2111, guide pipe 2112, leveling column 2113, expansion pipe 212, crown cap 2121, hook 22, second plate 3, fixing hole 31, retaining ring 32, retaining groove 321, screw 322, and insulation layer 4.

[0025] Example 1 Example 1 is basically as shown in the appendix. Figures 1-3 As shown, the self-locking insulation layer 4 insulation composite board structure includes an insulation layer 4 formed of aerogel insulation material, wherein the aerogel insulation material mainly includes aerogel felt, cement-based aerogel insulation board, and inorganic foamed aerogel insulation board. A first board 2 and a wrapping layer are respectively provided on both sides of the insulation layer 4. The first board 2 can be made of cement fiberboard, calcium silicate board, gypsum board, wood-plastic composite material (bamboo charcoal fiberboard, etc.), medium-density fiberboard, plywood, blockboard, etc. The wrapping layer can be set as an air-barrier membrane, which can be made of building waterproofing materials. Materials include water-permeable membranes, geotextiles, alkali-resistant fiberglass mesh composite geotextiles, skeleton nonwoven fabrics (skeleton type, formaldehyde-purifying type), polyester fiber thin felt, PVC fiberglass coated felt, and cement fiberglass coated felt; the wrapping layer can also be a mixed layer of reinforcing mesh and mixed mortar, wherein the reinforcing mesh is made of alkali-resistant fiberglass mesh, the mesh is wrapped around the side and edge of the insulation layer 4 away from the first plate 2, and then mortar is applied to the surface of the reinforcing mesh to achieve the sealing performance of the mixed layer. The cross-sections of the air barrier membrane and the mixed layer are both U-shaped.

[0026] The first plate 2 is provided with a plurality of retaining tubes 21. The first plate 2 has a plurality of countersunk holes for the retaining tubes 21 to be inserted. The plurality of retaining tubes 21 are of the same length and are vertically fixed to the first plate 2. The retaining tube 21 includes a positioning tube 211 and an expansion tube 212. The expansion tube 212 is fixedly connected to the end of the positioning tube 211 away from the first plate 2, and the end of the expansion tube 212 is fixedly provided with a crown-shaped cap 2121. The surface of the insulation layer 4 is provided with a retaining ring 32. The inner ring of the retaining ring 32 has a retaining groove 321 that matches the shape and size of the crown cap 2121. After the retaining tube 21 passes through the insulation layer 4, it engages with the retaining ring 32, thereby fixing the retaining ring 32 to the surface of the insulation layer 4. The retaining ring 32 is threadedly connected to a screw 322. The inner rings of the positioning tube 211 and the expansion tube 212 are both provided with threads, that is, the inner ring of the retaining tube 21 is used for the screw 322 to pass through and be threadedly connected. After the clamping sleeve 21 and the clamping ring 32 are clamped together, the wrapping layer wraps the clamping ring 32 around the surface of the insulation layer 4, thereby fixing the clamping ring 32 to the surface of the insulation layer 4. Alternatively, the wrapping layer can first wrap the insulation layer, and then the clamping sleeve can pass through the first plate, the insulation layer and the wrapping layer in sequence and connect with the clamping ring, so that the clamping ring is located outside the wrapping layer. The clamping ring being located outside the wrapping layer can further fix the wrapping layer.

[0027] Example 2 The difference between Example 2 and Example 1 is that the wrapping layer in Example 2 is set as a second plate, and the second plate 3 has a number of fixing holes 31 for the card tubes 21 to pass through. The number of fixing holes 31 is the same as the number of card tubes 21 and they correspond one-to-one. The clamping sleeve 21 includes a positioning tube 211 and an expansion tube 212. The expansion tube 212 is fixedly connected to the end of the positioning tube 211 away from the first plate 2, and a crown-shaped cap 2121 is fixedly provided at the end of the expansion tube 212. The second plate 3 is detachably connected to a retaining ring 32 in the fixing hole 31. The inner ring of the retaining ring has a retaining groove 321 that matches the shape and size of the crown cap 2121. The retaining ring 32 engages with the crown cap 2121 through the retaining groove 321. The second plate 3 is connected to the first plate 2 by engaging with the crown cap 2121 through the retaining ring 32. The retaining ring 32 is threadedly connected to a screw 322. The inner rings of the positioning tube 211 and the expansion tube 212 are both provided with threads, that is, the inner ring of the clamping sleeve 21 is used for the screw 322 to pass through and be threadedly connected.

[0028] In addition, the edges of the insulation layer 4 are wrapped separately with an air-tight membrane or with a mixed layer of reinforcing mesh and mortar. The reinforcing mesh is made of alkali-resistant fiberglass mesh, and the mortar is smoothed on the surface of the mesh to ensure the sealing of the edges of the insulation layer 4.

[0029] Example 3 like Figures 1-3As shown, the difference between Example 3 and Example 2 is that: the second panel 3 serves as a connecting layer for connecting the base wall 1, and the first panel 2 serves as a finishing layer. The first panel 2 as the finishing layer can be made of cement fiberboard, calcium silicate board, gypsum board, wood-plastic composite material (bamboo charcoal fiberboard, etc.), medium density fiberboard, plywood, or blockboard. The second panel 3 as the connecting layer can be made of cement fiberboard, calcium silicate board, bamboo charcoal fiberboard, KT board (made of polystyrene granules foam), PVC board (polyvinyl chloride), acrylic board (plexiglass), aluminum plate and aluminum-plastic composite board, or PP board. Hangers 11 are fixedly installed at equal intervals on the base wall 1, and L-shaped hooks 22 are fixedly installed on the upper and lower edges of the second panel 3. The hooks 22 are interlocked with the hangers 11 to suspend the composite board structure on the base wall 1.

[0030] Example 4 like Figures 3-7 As shown, the difference between Embodiment 4 and Embodiment 3 is that: the first board 2 serves as a connecting layer, and the second board 3 serves as a finishing layer. The second board 3, as the finishing layer, can be made of cement fiberboard, calcium silicate board, gypsum board, wood-plastic composite material (bamboo charcoal fiberboard, etc.), medium-density fiberboard, plywood, or blockboard. The first board 2, as the connecting layer, can be made of cement fiberboard, calcium silicate board, bamboo charcoal fiberboard, KT board (made of polystyrene granules foam), PVC board (polyvinyl chloride), acrylic board (plexiglass), aluminum plate and aluminum-plastic composite board, or PP board. It also includes hangers 11 evenly spaced on the base wall 1. Each hanger 11 includes a mounting bracket fixed to the base wall 1 by self-tapping screws, and hooks 111 slidably mounted on the bracket. A positioning plate 1121 is fixedly welded to the mounting bracket. An L-shaped hook 111 is slidably connected to the mounting bracket in the horizontal direction, penetrating the mounting bracket. An adjusting tube 1122 is horizontally fixedly connected to the bottom of the 11. The adjusting tube 1122 has several corrugated grooves 1123 on its outer ring. The adjusting tube 1122 is made of brittle material. Adjusting blocks 1125 are symmetrically slidably connected to the upper and lower sides of the adjusting hole 1124 on the positioning plate 1121. A first spring 1126 is connected between the adjusting block 1125 and the positioning plate 1121. The first spring 1126 is used to push the adjusting block 1125 into the corrugated groove 1123. The side facing the adjusting block 1125 is set as a semi-circular locking block 11251, and the side facing away is set as a triangular plate 11252. The end of the adjusting tube 1122 away from the positioning plate 1121 is sealed. A first plate 2 is suspended on the base wall 1 by a hanger 11. Hooks 22 are fixedly set at both the upper and lower ends of the first plate 2. The hooks 22 are L-shaped and are used to hang with the hooks 111, thereby ensuring that the first plate 2 is suspended on the base wall 1.

[0031] like Figures 3-7As shown, the positioning tube 211 penetrates the first plate 2. The positioning tube 211 includes a leveling tube 2111 located between the first plate 2 and the base wall 1, and a guide tube 2112 located between the first plate 2 and the second plate 3. The expansion tube 212 is fixedly connected to the end of the guide tube 2112 away from the first plate 2. A leveling column 2113 is axially slidably connected inside the leveling tube 2111. The axial length of the leveling column 2113 is less than the length of the positioning hook. A second spring is connected between the leveling column 2113 and the positioning tube 211. The second spring causes the leveling column 2113 to always abut against the end of the adjusting tube 1122. The screw 322 is used to drive the leveling column 2113 to slide inside the positioning tube 211 and increase the force between it and the adjusting tube 1122. In addition, the inner diameter of the interface ring of the leveling tube 2111 is larger than the outer diameter of the interface ring of the adjusting tube 1122.

[0032] The specific implementation process is as follows: The hanger 11 adjusts and drives the first plate 2 to level, providing a flat wall environment for the installation of the second plate 3. When installing the first plate 2, it is necessary to level it over a large area. At this time, manually pushing and pulling the first plate 2 causes the first plate 2 to drive the adjusting tube 1122 to slide on the positioning plate 1121, thereby leveling the first plate 2 over a large area. This ensures ease of operation and structural simplicity. When the adjusting tube 1122 moves on the positioning plate 1121, the adjusting block 1125 on the positioning plate 1121 abuts into the corrugated groove 1123 on the outer ring of the adjusting tube 1122 under the action of the first spring 1126. Since the connection between the corrugated groove 1123 and the outer wall of the adjusting tube 1122 is smoothly set, the adjusting block 1125 can accumulate on the groove wall of the corrugated groove 1123 during the sliding process of the adjusting tube 1122. The corrugated groove 1123 is extruded. When the next corrugated groove 1123 is aligned with the adjusting block 1125, the adjusting block 1125 is again pushed into the corrugated groove 1123 by the first spring 1126. This cycle repeats, so the leveling result of the first plate 2 can be fixed each time. During the entire leveling process, the leveling tube 2111 is always sleeved on the adjusting tube 1122. After the first plate 2 is leveled, the flatness of the first plate 2 needs to be fixed. At this time, just press the first plate 2 with force. The first plate 2 drives the leveling tube 2111 to move relative to the adjusting tube 1122. The end of the leveling tube 2111 interacts with the inclined surface of the triangular plate 11252, thereby driving the adjusting block 1125 to break through the bottom of the corrugated groove 1123. The adjusting tube 1122 is locked on the positioning plate 1121 to ensure that the adjusting tube 1122 will not slide relative to the positioning plate 1121.

[0033] When installing the second plate 3, screw 322 is screwed sequentially into the retaining ring 32, expansion tube 212, guide tube 2112, and leveling tube 2111. Expansion tube 212 and guide tube 2112 are located between the second plate 3 and the first plate 2. An insulation layer 4 is provided between the second plate 3 and the first plate 2. The internal density of the insulation layer 4 is not uniform. When screw 322 is screwed into the expansion tube 212, the expansion tube 212 expands within the insulation layer 4. This expansion causes the retaining ring 32 to expand, allowing its outer ring to abut against the fixing hole 31. However, if the expansion tube 212 expands asymmetrically due to uneven force within the insulation layer 4, the retaining ring 32 will be asymmetrically opened. This will cause a slight deformation of the second plate 3 at the fixing hole 31 on its edge, resulting in a slight unevenness in the second plate 3 at the fixing hole 31. Although this is minor... The foot massage, however, is fundamentally caused by uneven local stress. Prolonged uneven stress can lead to localized breakage of the second plate 3. Therefore, simply rotating the screw 322 causes the leveling column 2113 to slide within the positioning tube 211. The leveling column 2113 abuts against the top of the adjusting tube 1122, which is locked onto the positioning plate 1121. This relative sliding between the leveling column 2113 and the leveling tube 2111 changes the angle between the hanger 11 and the hook 22. This change in angle between the hook 22 and the hanger 11 results in a slight change in the localized flatness of the first plate 2. Since the insulation layer 4 between the first plate 2 and the second plate 3 is compressed, this slight change in flatness is transmitted to the second plate 3, thus ensuring even localized stress on the second plate 3 and leveling off any localized unevenness, preventing localized breakage of the second plate 3. The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A self-locking thermal insulation layer composite panel structure, characterized in that: It includes an insulation layer formed of aerogel insulation material, a first plate and a wrapping layer disposed on both sides of the insulation layer, and a clamping component. The clamping component includes a clamping ring and a clamping cylinder. A crown-shaped cap is provided at the end of the clamping cylinder. A groove corresponding to the crown-shaped cap is provided in the clamping ring. The clamping cylinder passes through the first plate and the insulation layer in sequence and is clamped with the clamping ring. The clamping ring and the clamping cylinder are connected to a screw.

2. The self-locking thermal insulation layer composite panel structure according to claim 1, characterized in that: The wrapping layer is set as a mixture of air-barrier membrane or reinforcing mesh and mortar. The retaining ring is located on the inner or outer side of the wrapping layer. The cross-section of the wrapping layer is U-shaped and wraps the edge of the aerosol felt.

3. The self-locking thermal insulation layer composite panel structure according to claim 1, characterized in that: The wrapping layer is set as a second plate, and the second plate has a number of fixing holes for the insertion of the retaining ring. The edge of the insulation layer is wrapped with a mixture of air-tight membrane or reinforcing mesh and mortar. The retaining sleeve includes a positioning tube set on the first plate and an expansion tube set at the end of the positioning tube. A crown cap is set at the end of the expansion tube.

4. The self-locking thermal insulation layer composite panel structure according to claim 3, characterized in that: The first panel serves as the finishing layer, and the second panel serves as the connecting layer. The second panel is used to connect to the base wall. Several hangers are fixedly installed at equal intervals on the base wall. L-shaped hooks are fixedly installed on the upper and lower edges of the second panel. The hooks and hangers are interlocked to suspend the composite panel structure on the base wall.

5. The self-locking thermal insulation layer composite panel structure according to claim 3, characterized in that: The first panel serves as a connecting layer, the second panel serves as a finishing layer, and several hanging pieces are movably connected to the base wall at equal intervals. L-shaped hooks are also fixedly installed on the upper and lower edges of the first panel. The hooks and hanging pieces are interlocked to suspend the composite panel structure on the base wall.

6. The self-locking thermal insulation layer composite panel structure according to claim 5, characterized in that: The positioning tube is installed through the first plate. The positioning tube includes a leveling tube located between the first plate and the base wall and a guide tube located between the first plate and the second plate. The leveling tube and the guide tube are connected. The expansion tube is connected to the guide tube. The leveling tube is located below the hook and the end of the leveling tube abuts against the hanger.

7. The self-locking thermal insulation layer composite panel structure according to claim 6, characterized in that: The hanger includes an L-shaped hook at the top and a leveling mechanism at the bottom. The leveling mechanism includes a positioning plate for fixed connection with the base wall and an adjusting tube that is slidably connected to the positioning plate. The outer ring of the adjusting tube is provided with a corrugated groove, and the hook is fixedly connected to the adjusting tube.

8. The self-locking thermal insulation layer composite panel structure according to claim 7, characterized in that: The positioning plate has an adjustment hole for the adjustment tube to slide. An adjustment block is slidably connected to the positioning plate in the radial direction of the adjustment hole. A first spring is connected between the adjustment block and the first plate. The first spring is used to push the adjustment block into the corrugated groove.

9. The self-locking thermal insulation layer composite panel structure according to claim 8, characterized in that: The adjusting block includes a front semi-circular locking block and a rear triangular plate. The inner diameter of the leveling tube cross-section ring is larger than the outer diameter of the leveling tube cross-section ring. The leveling tube is sleeved on the adjusting tube. The leveling tube squeezes the triangular plate to drive the locking block to break through the bottom of the corrugated groove. The first spring is used to push the adjusting block into the tube of the adjusting tube.

10. The self-locking thermal insulation layer composite panel structure according to claim 9, characterized in that: A leveling column is slidably connected inside the positioning tube. The length of the leveling column is less than the length of the positioning tube. A second spring is connected between the leveling column and the positioning tube. The second spring is used to drive the leveling column to abut against the end of the adjusting tube. A screw is used to drive the leveling column to slide inside the positioning tube and abut against the end of the adjusting tube.

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