Fixing structure for external wall insulation decoration sandwich board

Abstract

The utility model discloses a fixing structure for an external wall thermal insulation decoration sandwich board, which comprises a connecting assembly, an interlayer filled between an external wall and the sandwich board and mortar wrapping the connecting assembly, the connecting assembly comprises a connecting piece, a first fixing piece for fixing one end of the connecting piece to the outer wall and a second fixing piece for fixing the other end of the connecting piece to the sandwich plate, a groove is formed in the side, facing the outer wall, of the sandwich plate, and the second fixing piece sinks into the groove. The fixing structure for the external wall insulation decoration sandwich board has the advantages of being simple in construction, convenient to operate, capable of optimizing protection measures of the sandwich board and capable of reducing damage risks.

Description

Technical Field

[0001] The utility model relates to the technical field of building decorative panels, in particular to a fixing structure for an external wall thermal insulation decorative sandwich panel. Background Art

[0002] The external wall thermal insulation decorative sandwich panel is a relatively advanced external wall thermal insulation and decoration technology among many finishing and thermal insulation technologies. However, if the project quality fails to meet the design requirements, it will affect the building energy-saving effect. Seriously, it will cause the shedding of the thermal insulation layer and even the leakage of water on the external wall, affecting the living environment.

[0003] Currently, this type of thermal insulation panel is generally installed by the bonding and anchoring method. The bonding and anchoring method mainly relies on mortar bonding, supplemented by anchor fixing. The bonding force is controlled by the bonding mortar. The anchor mainly plays the role of fixing the panel. After using screw-type fasteners to fix the anchor to the thermal insulation panel, the screws are exposed and protrude above the back of the thermal insulation panel. During the stacking and transportation of the thermal insulation panels, they are prone to scratching between each other, increasing the damage probability of the thermal insulation and decoration panels. Content of the Utility Model

[0004] The utility model provides a fixing structure for an external wall thermal insulation decorative sandwich panel, which has the advantages of simple construction, convenient operation, and optimized protection measures for the sandwich panel, reducing the risk of damage.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A fixing structure for an external wall thermal insulation decorative sandwich panel includes a connecting component and mortar filled in the interlayer between the external wall and the sandwich panel and wrapping the connecting component. The connecting component includes a connecting piece, a first fixing piece for fixing one end of the connecting piece to the external wall, and a second fixing piece for fixing the other end of the connecting piece to the sandwich panel. A groove is provided on one side of the sandwich panel facing the external wall, and the second fixing piece sinks into the groove.

[0007] Adopting the foregoing technical solution, the connecting component is composed of a connecting piece, a first fixing piece, and a second fixing piece to achieve a firm connection between the sandwich panel and the external wall. The second fixing piece is responsible for fixing the other end of the connecting piece to the sandwich panel, and the first fixing piece is responsible for fixing one end of the connecting piece to the external wall. Then, it is wrapped with mortar to achieve the connection between the sandwich panel and the external wall. A groove for accommodating the second fixing piece is provided on one side of the sandwich panel facing the external wall, so that the second fixing piece sinks into the groove, avoiding possible scratching during transportation and installation, thereby ensuring the quality of the product.

[0008] Further, the groove is filled with mortar.

[0009] With the foregoing technical solution, the mortar is used to fill the interlayer between the exterior wall and the sandwich panel, playing a role in bonding and fixing. During the process of filling the interlayer, the mortar will flow into the grooves on the sandwich panel, expanding the contact area with the sandwich panel and increasing the bonding force, enabling it to adhere more tightly to the sandwich panel. When the mortar flows into the grooves, it will also wrap the second fixing member located in the grooves, not only further strengthening the connection between the second fixing member and the sandwich panel, but also preventing the second fixing member from loosening or falling off during use, enhancing the connection strength between the sandwich panel and the exterior wall.

[0010] Further, the connecting member includes a connecting body, and a first connecting section and a second connecting section extending reversely from both ends of the connecting body. The first connecting section is parallel to the second connecting section. The first connecting section is used to connect the sandwich panel, and the second connecting section is used to connect the exterior wall.

[0011] With the foregoing technical solution, the connecting member is responsible for connecting the exterior wall and the sandwich panel. The first connecting section and the second connecting section extend reversely from both ends of the connecting body respectively and are parallel to each other. The first connecting section is used to connect the sandwich panel, and the second connecting section is used to connect the exterior wall and keep them parallel. When the connecting member is subjected to an external force, the parallel connecting sections can share the force together, reducing stress concentration, thereby improving the stability of the entire connection structure.

[0012] Further, the first connecting section forms a surface fit with the bottom surface of the groove.

[0013] With the foregoing technical solution, when the first connecting section is completely fitted with the bottom surface of the groove, it can provide a more stable supporting surface for the second fixing member, and the second fixing member can install it on the sandwich panel more firmly when fixing the connecting member.

[0014] Further, the first connecting section has a gourd-shaped hole. In the installed state, the smaller end of the gourd-shaped hole faces downward.

[0015] With the foregoing technical solution, when installing the connecting member and the second fixing member, first put the large hole of the gourd-shaped hole over the second fixing member. Since the diameter of the large hole is larger, it is relatively easy and smooth to put the second fixing member into it. After putting it in, by dragging the connecting member upward, the second fixing member slides into the small hole of the gourd-shaped hole. Since the diameter of the small hole is smaller than that of the large hole, the second fixing member will be stuck at the position of the small hole, thus realizing fixation. When the sandwich panel is subjected to the action of gravity and has a tendency to fall off downward, the connecting member installed on the sandwich panel will also be subjected to a downward pulling force. The smaller end of the gourd-shaped hole faces downward, and the downward pulling force will make the second fixing member stuck more tightly in the small hole. The diameter of the small hole limits the moving range of the second fixing member, making it unable to fall off from the gourd-shaped hole easily. This connection method improves the stability of the connection and also enhances the safety and reliability of the installation of the sandwich panel.

[0016] Further, a washer is sleeved on the second fixing member, the outer diameter of the washer is less than or equal to the diameter of the smaller end of the gourd hole, and the head of the second fixing member and the sandwich panel clamp the washer.

[0017] Adopting the foregoing technical solution, sleeving a washer on the second fixing member avoids the over-saturation of the connection between the second fixing member and the sandwich panel, which makes it difficult to disassemble during the installation of the connecting member. The outer diameter of the washer is less than or equal to the diameter of the smaller end of the gourd hole, so that during the installation connection, the connecting member can directly pass through the gourd hole smoothly and be fixedly clamped.

[0018] Further, the second connecting section has a plurality of positioning holes arranged at intervals in the vertical direction, and the first fixing member passes through one of the positioning holes and is locked into the outer wall.

[0019] Adopting the foregoing technical solution, the second connecting section is fixedly connected to the outer wall, and a plurality of positioning holes are arranged at intervals in the vertical direction, which increases the flexibility of the connection, so that the first fixing member can pass through one of the positioning holes and be locked into the outer wall. According to the specific situation and requirements of the outer wall, the most suitable positioning hole can be selected for fixing to adapt to different installation conditions and requirements.

[0020] Further, the width of the groove is at least 1.5 times the width of the first connecting section.

[0021] Adopting the foregoing technical solution, the width of the first connecting section is less than the width of the groove, so that the mortar will not be blocked by the first connecting section during the filling process, because the gap between the first connecting section and the groove is large enough to provide enough space for the flow of the mortar. The mortar can be more easily distributed to all corners of the groove during filling, thereby ensuring the uniformity of filling, providing better bonding force, and enhancing the connection strength between the first connecting section and the groove.

[0022] Further, the sandwich panel includes a bottom plate on the side close to the outer wall, an exterior panel on the side far from the outer wall, and a thermal insulation layer located therebetween. A fixing component penetrating the thermal insulation layer is provided between the bottom plate and the exterior panel, and the second fixing member penetrates the bottom plate and is locked to the fixing component for reinforcement connection.

[0023] Adopting the foregoing technical solution, a fixing component penetrating the thermal insulation layer is provided between the bottom plate and the exterior panel, which not only connects the bottom plate and the exterior panel, but also penetrates the intermediate thermal insulation layer, playing a role in stabilizing the entire sandwich panel structure. In addition to the connection provided by the fixing component itself, the connection strength between the bottom plate and the fixing component is further enhanced by the second fixing member, further improving the stability of the connection between the sandwich panel and the outer wall, and preventing loosening or falling off due to long-term use or external factors.

[0024] Further, one end of the connecting component connected to the sandwich panel is close to the upper end of the sandwich panel, and one end of the connecting member connected to the exterior wall is higher than the upper end of the sandwich panel.

[0025] With the foregoing technical solution, when the connection point is close to the upper end of the sandwich panel, the supporting effect of the connecting member on the sandwich panel is mainly concentrated on the upper part. At this time, the connection point of the connecting member is far from the center of gravity, so as to increase the moment arm of the connecting component. When the same horizontal external force is applied, due to the increase of the moment arm, the moment required to be provided by the connecting component is reduced. Therefore, this installation method helps to improve the overall stability of the connection structure between the sandwich panel and the exterior wall. One end of the connecting member connected to the exterior wall is higher than the upper end of the sandwich panel, so that one end of the connecting member connected to the exterior wall is exposed, which is convenient for installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic installation view of the exterior wall and the sandwich panel of the present utility model;

[0027] Figure 2 is a schematic structural view of the connecting plate of the present utility model;

[0028] Figure 3 is the present utility model Figure 1 partial structural view. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The present utility model will be further described below with reference to the drawings and specific embodiments.

[0030] As Figure 1 shown, a fixing structure for an exterior wall 1 and a thermal insulation and decorative sandwich panel 2 includes a connecting component 4 and mortar 3 filled in the interlayer between the exterior wall 1 and the sandwich panel 2 and wrapping the connecting component 4. The connecting component 4 includes a connecting member 41, a first fixing member 42 for fixing one end of the connecting member 41 to the exterior wall 1, and a second fixing member 43 for fixing the other end of the connecting member 41 to the sandwich panel 2. A groove 21 is provided on one side of the sandwich panel 2 facing the exterior wall 1, and the second fixing member 43 sinks into the groove 21.

[0031] It can be understood that the connecting component 4 is composed of a connecting member 41, a first fixing member 42 and a second fixing member 43 to achieve a firm connection between the sandwich panel 2 and the exterior wall 1. The second fixing member 43 is responsible for fixing the other end of the connecting member 41 to the sandwich panel 2, and the first fixing member 42 is responsible for fixing one end of the connecting member 41 to the exterior wall 1, and then wrapping it with mortar 3 to achieve the connection between the sandwich panel 2 and the exterior wall 1. A groove 21 for accommodating the second fixing member 43 is provided on one side of the sandwich panel 2 facing the exterior wall 1, so that the second fixing member 43 sinks into the groove 21, avoiding possible scratches and bumps during transportation and installation, thereby ensuring the quality of the product.

[0032] Preferably, in this embodiment, the first fixing member 42 is a metal expansion nail. First, drill a hole in the exterior wall 1, insert a plastic expansion anchor bolt, and then screw the metal expansion nail into one end of the connecting member 41 to achieve the fixing purpose. The second fixing member 43 is directly set in the groove 21 of the sandwich panel 2 during the manufacturer's production. Self-tapping screws are selected, but this is not limited in other embodiments.

[0033] Furthermore, the groove 21 is filled with mortar 3.

[0034] It can be understood that the mortar 3 is used to fill the interlayer between the exterior wall 1 and the sandwich panel 2, playing a role in bonding and fixing. During the process of filling the interlayer, the mortar 3 will flow into the groove 21 on the sandwich panel 2, expanding the contact area with the sandwich panel 2, increasing the bonding force, and enabling it to adhere more closely to the sandwich panel 2. When the mortar 3 flows into the groove 21, it will also wrap the second fixing member 43 located in the groove 21, not only further strengthening the connection between the second fixing member 43 and the sandwich panel 2, but also preventing the possible loosening or falling off of the second fixing member 43 during use, enhancing the connection strength between the sandwich panel 2 and the exterior wall 1.

[0035] Furthermore, the connecting member 41 includes a connecting body 411 and a first connecting section 412 and a second connecting section 413 that extend in opposite directions from both ends of the connecting body 411. The first connecting section 412 is parallel to the second connecting section 413. The first connecting section 412 is used to connect the sandwich panel 2, and the second connecting section 413 is used to connect the exterior wall 1.

[0036] Adopting the foregoing technical solution, the connecting member 41 is responsible for connecting the exterior wall 1 and the sandwich panel 2. The first connecting section 412 and the second connecting section 413 extend in opposite directions from both ends of the connecting body 411 and are parallel to each other. The first connecting section 412 is used to connect the sandwich panel 2, and the second connecting section 413 is used to connect the exterior wall 1 and keep them parallel. When the connecting member 41 is subjected to an external force, the parallel connecting sections can share the force together, reducing stress concentration, thereby improving the stability of the entire connection structure.

[0037] Preferably, the connecting member 41 is made of stainless steel.

[0038] In one embodiment, the connecting member 41 is integrally in a "Z" shape.

[0039] Optionally, one end of the connecting member 41 connected to the sandwich panel 2 is disposed near the upper end of the sandwich panel 2, and one end of the connecting member 41 connected to the exterior wall 1 is higher than the upper end of the sandwich panel 2. When installing the sandwich panel 2 on the exterior wall 1, first install the connecting piece with the sandwich panel 2, and then install the connecting piece on the exterior wall 1. In order to facilitate installation, sufficient operating space needs to be reserved at the upper end of the sandwich panel 2. The first connecting section 412 needs to extend into the groove 21. To avoid interference with the sandwich panel 2, the connecting body 411 is set at an angle with the exterior wall 1 and is in surface contact with the bottom surface of the groove 21 of the sandwich panel 2. Further, the second connecting section 413 is also in surface contact with the exterior wall 1.

[0040] Preferably, as Figure 2 shown, the first connecting section 412 has a calabash hole 414. In the installed state, the smaller end of the calabash hole 414 faces downward.

[0041] As Figure 1 and Figure 2 shown, when installing the connecting member 41 and the second fixing member 43, first put the large hole of the calabash hole 414 over the second fixing member 43. Since the diameter of the large hole is larger, it is relatively easy and smooth to put the second fixing member 43 in. After putting it in, by dragging the connecting member 41 upward, the second fixing member 43 slides into the small hole of the calabash hole 414. Since the diameter of the small hole is smaller than that of the large hole, the second fixing member 43 will be stuck at the position of the small hole, thus realizing fixation. When the sandwich panel 2 is subjected to the action of gravity and has a tendency to fall off downward, the connecting member 41 installed on the sandwich panel 2 will also be subjected to a downward pulling force. The smaller end of the calabash hole 414 faces downward, and the downward pulling force will make the second fixing member 43 be stuck more tightly in the small hole. The diameter of the small hole limits the moving range of the second fixing member 43, making it impossible to easily fall off from the calabash hole 414. This connection method improves the connection stability and also enhances the safety and reliability of the installation of the sandwich panel 2.

[0042] Further, the second connecting section 413 has a plurality of positioning holes 415 arranged at intervals in the vertical direction, and the first fixing member 42 passes through one of the positioning holes 415 and is locked into the exterior wall 1.

[0043] It can be understood that the second connecting section 413 is fixedly connected to the exterior wall 1, and a plurality of positioning holes 415 arranged at intervals in the vertical direction are provided, which increases the connection flexibility, enabling the first fixing member 42 to pass through one of the positioning holes 415 and be locked into the exterior wall 1. According to the specific situation and requirements of the exterior wall 1, the most suitable positioning hole 415 can be selected for fixation to adapt to different installation conditions and requirements.

[0044] Optionally, there are 3 or 4 or 5 positioning holes 415 etc.

[0045] Further, the width of the groove 21 is at least 1.5 times the width of the first connecting section 412.

[0046] It can be understood that, as Figure 1 and Figure 3 shown, the width of the first connecting section 412 is X, the width of the groove 21 is Y, and the width of the first connecting section 412 is less than the width of the groove 21. During the filling process of the mortar 3, it will not be hindered by the first connecting section 412 because the gap between the first connecting section 412 and the groove 21 is large enough to provide sufficient space for the flow of the mortar 3. When the mortar 3 is filled, it can be more easily distributed to all corners of the groove 21, thus ensuring the uniformity of filling, providing better bonding force, and enhancing the connection strength between the first connecting section 412 and the groove 21.

[0047] Further, as Figure 1 shown, the sandwich panel 2 includes a bottom plate 22 close to the outer wall 1 side, an exterior decorative panel 23 far from the outer wall 1 side, and a thermal insulation layer 24 located between the two. A fixing component penetrating the thermal insulation layer 24 is provided between the bottom plate 22 and the exterior decorative panel 23, and the second fixing member 43 penetrates the bottom plate 22 and is locked to the fixing component for reinforcement connection.

[0048] It can be understood that a fixing component penetrating the thermal insulation layer 24 is provided between the bottom plate 22 and the exterior decorative panel 23, which not only connects the bottom plate 22 and the exterior decorative panel 23 but also penetrates the middle thermal insulation layer 24, playing a role in stabilizing the structure of the entire sandwich panel 2. In addition to the connection provided by the fixing component itself, the connection strength between the bottom plate 22 and the fixing component is further enhanced by the second fixing member 43, further improving the stability of the connection between the sandwich panel 2 and the outer wall 1 and preventing loosening or falling off caused by long-term use or external factors.

[0049] The fixing component includes a U-shaped metal connecting piece 231 and a metal adapter piece 242. The U-shaped metal connecting piece 231 is arranged on the back of the exterior decorative panel 23. A connecting through hole 233 is provided on the U-shaped metal connecting piece 231, and a screw hole 232 is provided on the exterior decorative panel 23. The connecting through hole 233 and the screw hole 232 are fixedly connected by an anti-loosening bolt or a rivet. In this embodiment, an anti-loosening bolt connection is adopted. An avoidance cavity 241 is provided at the corresponding position of the thermal insulation layer 24 and the U-shaped metal connecting piece 231, and a metal adapter piece 242 is arranged in the avoidance cavity 241. The two sides of the metal adapter piece 242 are bent inward and extended. The other end of the U-shaped metal connecting piece 231 and the bottom plate 22 are fixedly connected by the second fixing member 43; the screw hole 232 on the outer side surface of the exterior decorative panel 23 is filled with putty.

[0050] Further, a washer 431 is sleeved on the second fixing member 43. The outer diameter of the washer 431 is less than or equal to the diameter of the smaller end of the gourd hole. The head of the second fixing member 43 and the sandwich panel 2 clamp the washer 431.

[0051] With the foregoing technical solution, sleeving the washer 431 on the second fixing member 43 prevents the connection between the second fixing member 43 and the sandwich panel 2 from being too saturated, making it difficult to disassemble when installing the connecting member. The outer diameter of the washer 431 is less than or equal to the diameter of the smaller end of the gourd hole, so that when installing and connecting, the connecting member 231 can directly and smoothly pass through the gourd hole and be fixedly clamped.

[0052] Further, a plurality of connecting components 4 are correspondingly arranged on the sandwich panel 2, and the plurality of connecting components 4 are arranged at intervals along the width direction of the sandwich panel 2.

[0053] It can be understood that arranging the plurality of connecting components 4 at intervals along the width direction can effectively disperse the force on the sandwich panel 2. This dispersion reduces the force borne by a single connecting component 4, thereby improving the overall load-bearing capacity. The multiple groups of connecting components 4 also increase the overall stability. Even if one of the connecting components 4 fails, the other connecting components 4 can still continue to function and maintain the stable connection between the sandwich panel 2 and the exterior wall 1.

[0054] Optionally, a plurality of connecting components 4 are arranged along the width direction on one sandwich panel 2. The plurality of connecting components 4 can be placed in one groove 21, or one groove 21 can be provided for each group of connecting components 4.

[0055] Further, one end of the connecting component 4 connecting the sandwich panel 2 is close to the upper end of the sandwich panel 2, and one end of the connecting member 41 connecting the exterior wall 1 is higher than the upper end of the sandwich panel 2.

[0056] It can be understood that when the connection point is close to the upper end of the sandwich panel 2, the supporting effect of the connecting member 41 on the sandwich panel 2 is mainly concentrated on the upper part. At this time, the connection point of the connecting member 41 is far from the center of gravity to increase the moment arm of the connecting component 4. When it is subjected to the same horizontal external force, due to the increase in the moment arm, the moment required to be provided by the connecting component 4 decreases. Therefore, this installation method helps to improve the overall stability of the connection structure between the sandwich panel 2 and the exterior wall 1. One end of the connecting member 41 connecting the exterior wall 1 is higher than the upper end of the sandwich panel 2, so that one end of the connecting member 41 connecting the exterior wall 1 is exposed, which is convenient for installation.

[0057] An installation method for an exterior wall 1 thermal insulation and decorative sandwich panel 2 has the following steps according to the above:

[0058] S1. Prepare materials. When the manufacturer produces the sandwich panel 2, the second fixing part 43 is pre-fixed on the sandwich panel 2 and the second fixing part 43 is sunk into the groove 21. The standard size of the thermal insulation decorative sandwich panel 2 is 2440mm×1220mm. It is cut into two sizes of 1220mm×610mm and 1220mm*810mm by a precision cutting machine in the processing area. The area of ​​a single panel should not be larger than 1 square meter. The thickness deviation of the panel is ≤+2.0mm, -1.0mm; the diagonal error is ≤3mm; the length and width error is ≤±2mm; the flatness of the panel surface is ≤2mm.

[0059] S2. A second fixing member 43 is provided on the bottom plate 22 of the sandwich panel 2. One end of the connecting piece having the calabash hole 414 is connected and fixed to the second fixing member 43, and the calabash hole 414 is installed and placed with the small hole facing downward;

[0060] S3. After the connecting piece is fixed to the connecting piece, apply bonding mortar 3 on the bottom plate 22. The mortar 3 is pressed into a pancake shape. The diameter of each pancake coating point is >150mm. There shall be no less than 8 coating points per square meter. The bonding area of ​​the bonding mortar 3 shall not be less than 60% of the area of ​​the thermal insulation board. Push the board onto the wall by hand, adjust the position of the thermal insulation decorative board, and gently squeeze to evenly spread the bonding mortar 3.

[0061] S4. Use a level ruler to calibrate the level of sandwich panel 2, and use a ruler to check the verticality of sandwich panel 2. The horizontality and verticality should be controlled within 1mm, the displacement of the plate seam should not exceed 2mm, and the deviation size should not be accumulated to ensure that the inner corner and the outer corner are flush;

[0062] S5. After the mortar 3 is tightly in place, use a drill bit to align with the positioning hole 415 on the connecting piece and drill holes on the exterior wall 1. The connecting piece has multiple positioning holes 415, and the position of the drilling hole can be adjusted to ensure that the drilling position is appropriate;

[0063] S6. Install the third fixing member in the hole. The hole should be drilled perpendicular to the wall surface so that the first fixing member 42 can be inserted smoothly. Then fix it until it is completely immersed in the wall without any looseness. There should be no less than 8 fixing members per square meter.

[0064] S7. After installation, use 30mm wide tape to press and stick tightly on both sides of the horizontal and vertical seams by hand to prevent glue leakage and contamination. Cut off the tape at the cross joints, and then use a glue gun to evenly inject silicone sealant into the seams. The sealant should be applied from top to bottom, first horizontal seams and then vertical seams. The sealant in the seams is full and substantial, and then the sealant is scraped flat with a flat scraper, and then the tape is torn off. The tape on both sides of the external angle should be close to the edge of the board to make the external angle straight. Use the external angle gauge to smooth the sealant, and apply the hand glue on the internal corner. After the caulking glue is formed, the surface is smooth;

[0065] S8. After the construction is completed and before the project acceptance, tear off the protective film on the surface of the external wall 1 insulation decorative board, and gently wipe the contaminated parts clean with a towel.

[0066] The above are only the specific embodiments and operation steps of the present utility model. In addition to the above preferred embodiments, the present utility model has other implementation manners. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection claimed by the present utility model.

Claims

1. A fixing structure for an exterior wall insulation decorative sandwich panel, comprising a connecting assembly and a mortar filled in a sandwich layer between the exterior wall and the sandwich panel and wrapping the connecting assembly, wherein the connecting assembly comprises a connecting piece, a first fixing piece fixing one end of the connecting piece to the exterior wall, and a second fixing piece fixing the other end of the connecting piece to the sandwich panel, characterized in that: A groove is provided on one side of the sandwich panel facing the outer wall, and the second fixing member is sunk into the groove.

2. A fixing structure for exterior wall insulation decorative sandwich panels according to claim 1, characterized in that: The mortar passage is filled with mortar.

3. A fixing structure for exterior wall insulation decorative sandwich panels according to claim 1, characterized in that: The connecting member includes a connecting body and a first connecting section and a second connecting section extending in opposite directions from two ends of the connecting body. The first connecting section is parallel to the second connecting section. The first connecting section is used to connect the sandwich panel, and the second connecting section is used to connect the exterior wall.

4. A fixing structure for exterior wall insulation decorative sandwich panels according to claim 3, characterized in that: The first connecting section is in surface contact with the bottom surface of the groove.

5. The fixing structure for exterior wall insulation decorative sandwich panels according to claim 3, characterized in that: The first connecting section has a calabash hole, and in an installed state, the smaller end of the calabash hole faces downward.

6. A fixing structure for exterior wall insulation decorative sandwich panels according to claim 5, characterized in that: A washer is sleeved on the second fixing member, the outer diameter of the washer is smaller than or equal to the diameter of the smaller end of the gourd hole, and the head of the second fixing member and the sandwich plate clamp the washer.

7. The fixing structure for exterior wall insulation decorative sandwich panels according to claim 3, characterized in that: The second connecting section has a plurality of positioning holes arranged at intervals in the vertical direction, and the first fixing member passes through one of the positioning holes and is locked into the outer wall.

8. The fixing structure for exterior wall insulation decorative sandwich panels according to claim 3, characterized in that: The width of the groove is at least 1.5 times the width of the first connecting section.

9. The fixing structure for exterior wall insulation decorative sandwich panels according to claim 1, characterized in that: The sandwich panel includes a bottom plate close to the exterior wall, an exterior panel away from the exterior wall, and an insulation layer therebetween. A fixing component penetrating the insulation layer is provided between the bottom plate and the exterior panel. The second fixing piece penetrates the bottom plate and is locked onto the fixing component for a reinforced connection.

10. The fixing structure for exterior wall insulation decorative sandwich panels according to claim 1, characterized in that: One end of the connecting piece connected to the sandwich panel is close to the upper end of the sandwich panel, and one end of the connecting piece connected to the exterior wall is higher than the upper end of the sandwich panel.

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