An external wall insulation board convenient to install and splice and a construction method thereof

Abstract

The present application relates to the technical field of insulation board, disclose a kind of external wall insulation board and its construction method of convenient installation splicing, design includes insulation board, the insulation board sequentially includes surface layer, folded plate layer, support layer and insulation layer, the folded plate layer includes connecting plate body, bonding plate body and the prism cavity surrounded by connecting plate body and bonding plate body, the length direction of the prism cavity and the included angle of each side of the insulation board are all 45 degrees. Four-layer board structure with folded plate layer is used, which is convenient for cooperation with splicing device to quickly complete the installation of insulation board and splicing frame assembly. Splicing frame assembly includes main splicing strip and auxiliary splicing strip. The installation operation of main splicing strip is simple and fast, and the installation operation of insulation board can be completed quickly as a whole.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of insulation boards, in particular to an external wall insulation board convenient for installation and splicing and a construction method thereof. BACKGROUND

[0002] The external wall insulation board is a kind of insulation material for building external walls, and its main function is to reduce the heat transfer between indoor and outdoor, so as to achieve the effect of thermal insulation and energy saving. The external wall insulation board effectively improves the thermal insulation performance of buildings, creates more comfortable and energy-saving living and working environment for people, and also plays a positive auxiliary role in beautifying the appearance of buildings.

[0003] The traditional external wall insulation layer is usually constructed in multiple layers in sequence. During construction, the insulation layer is first pasted on the wall, then the anchor nails for fixing the insulation layer are installed, and then the gaps and hole positions of the insulation layer are filled. Then, the mesh cloth is laid outside the insulation layer, and the cement mortar is daubed, and multiple layers of cement mortar are also daubed. Not only is the construction operation complicated, but also a certain drying time is required during the construction operation of different layers, which further leads to the problems of long construction period and slow construction progress.

[0004] At present, many insulation boards in block shape are also appeared on the market, which are installed by prefabrication. The insulation effect of the wall is achieved by splicing multiple insulation boards. This kind of insulation board can shorten the construction period, but the leveling work between each insulation board is very troublesome. Moreover, this kind of insulation board is usually a thermal insulation and decoration integrated board, which is made by wrapping heat insulation material with metal. The overlapping position of the upper and lower adjacent two boards usually adopts a metal supporting overlapping edge. The metal overlapping edge position is easy to reduce the thermal insulation performance. At the same time, this kind of overlapping insulation board is also easy to cause local bulging after thermal deformation due to the overlapping joint factor, thereby affecting the thermal insulation performance. SUMMARY

[0005] The present application aims to provide an external wall insulation board convenient for installation and splicing and a construction method thereof, so as to solve the problems of difficult construction and long construction period of the existing external wall insulation board.

[0006] The present application is realized by the following technical scheme:

[0007] In one aspect, a kind of external wall insulation board of convenient installation splicing is provided, including insulation board, the insulation board includes face layer, folding plate layer, support layer and insulation layer in turn, the folding plate layer includes connecting plate body, adhesive plate body and the prism cavity surrounded by connecting plate body and adhesive plate body, the length direction of the prism cavity and the angle of each side of the insulation board are all 45 degrees;Splicing device, the splicing device is inserted with the side edge of the folding plate layer and is thus fixedly installed on the insulation board;Splicing frame assembly, the insulation board is installed and fixed on the splicing frame assembly by the splicing device, and the splicing frame assembly includes main splicing strip and multiple vice splicing strips between adjacent two main splicing strips.

[0008] In one possible design, the main splicing strip is fixed to the wall body through multiple bases.

[0009] In one possible design, the main splicing strip includes main connecting plate body and main arc-shaped clamping part, the main splicing strip is fixed to the wall body through multiple bases, and the main splicing strip is vertically matched with the vice splicing strip.

[0010] In one possible design, the splicing device includes splicing plate body and insertion body, the angle between the splicing plate body and the insertion body is 45 degrees, multiple insertion bodies are uniformly arranged on the splicing plate body, the insertion body is inserted and matched with the folding plate layer through the prism cavity on the folding plate layer, and a hook part is fixed on one side of the splicing plate body.

[0011] In one possible design, the arc shape of the main arc-shaped clamping part is half-elliptical arc shape.

[0012] In one possible design, the base includes bottom plate and connecting plate, the connecting plate is used to be connected and fixed with the main splicing strip, the bottom plate is vertically fixed with the connecting plate, the installation hole is formed in the bottom plate, the fixing of the bottom plate and the wall surface is completed through expansion bolts at the installation hole, and multiple anti-skid protrusions are fixed on the side of the bottom plate close to the wall surface.

[0013] In one possible design, the adjusting assembly is further arranged between the main splicing strip and the base, the adjusting assembly includes strip-shaped hole formed in the main connecting plate body, sliding block arranged between the strip-shaped holes, connecting screw used to connect the sliding block and the base, and installation hole in strip shape and parallel to the main splicing strip, the inclined directions of two adjacent strip-shaped holes on the main splicing strip are opposite, and the sliding block is slidingly arranged in the strip-shaped hole.

[0014] In one possible design, the connecting plate includes interlayer plate and two side connecting plates fixed on both sides of the interlayer plate, the sliding block is arranged between the two side connecting plates, the connecting screw passes through the sliding block, and the connecting screw is fixedly connected with the connecting plate.

[0015] In a possible design, the auxiliary splicing strip comprises an auxiliary connecting plate body and an auxiliary arc-shaped clamping part, the auxiliary connecting plate body has the same structure as the main connecting plate body, the auxiliary arc-shaped clamping part has the same structure as the main arc-shaped clamping part, and two clamping plates are fixed at two ends of the auxiliary splicing strip.

[0016] In another aspect, a construction method for facilitating installation of splicing external wall insulation boards is provided, comprising the following steps:

[0017] S1, construction preparation, cleaning the building external wall base;

[0018] S2, installation of the main splicing strip is completed, the first main splicing strip is installed from the bottom end of the wall surface, holes are punched along the position of the elastic line, expansion bolts are inserted, at the same time, the horizontal position of the base is adjusted, the installed main splicing strip is ensured to be straight, then the expansion bolts are tightened to fix the base, and finally the installation and fixation of the whole main splicing strip are completed;

[0019] S3, the four edges of the insulation board are inserted into the splicing device, and a layer of special adhesive is evenly applied on the back of the insulation board;

[0020] S4, the insulation board with the splicing device inserted is placed on the main splicing strip in sequence, and the auxiliary splicing strip is placed between the adjacent two insulation boards, the two insulation boards and the auxiliary splicing strip between the two insulation boards are kept tightly attached, the installation of the insulation board above the main splicing strip is finally completed, and the main splicing strip above the insulation board is installed;

[0021] S5, the operation procedures of S2-S4 are repeated to finally complete the installation operation of the whole wall;

[0022] S6, sealant is applied at the splicing joint of each board to prevent water leakage at the splicing joint.

[0023] Compared with the prior art, the present application has the following advantages and beneficial effects:

[0024] The four-layer plate structure with the folded plate layer is adopted to facilitate rapid installation of the insulation board and the splicing frame assembly, the splicing frame assembly comprises the main splicing strip and the auxiliary splicing strip, the installation operation of the main splicing strip is simple and fast, the installation operation of the insulation board can be quickly completed as a whole, and the prismatic cavity with a hollow structure is generated in the folded plate layer of the insulation board, a plurality of hollow structure prismatic cavities are formed between the surface layer and the folded plate layer, a double-layer heat insulation structure is formed in the whole insulation board through the insulation layer and the folded plate layer, and the overall heat preservation effect of the insulation board is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] The drawings described herein are used to provide further understanding of the embodiments of the present application, constitute a part of the present application, and do not constitute a limitation on the embodiments of the present application. In the drawings:

[0026] Figure 1 Structure diagram of the thermal insulation board of the present application installed on the wall surface;

[0027] Figure 2 Structure diagram of the thermal insulation board of the present application installed on the wall surface;

[0028] Figure 3 Structure diagram of the thermal insulation board of the present application installed on the wall surface;

[0029] Figure 4 Partial assembly front view of the main splicing strip, splicing device and base of the present application;

[0030] Figure 5 Top view of the thermal insulation board of the present application;

[0031] Figure 6 Partial assembly front view of the main splicing strip, splicing device and base of the present application; Figure 5 Sectional view of the present application at A-A;

[0032] Figure 7 Partial assembly front view of the main splicing strip, splicing device and base of the present application; Figure 6 Enlarged view of B of the present application;

[0033] Figure 8 Partial assembly front view of the main splicing strip, splicing device and base of the present application; Figure 6 Left view of the present application;

[0034] Figure 9 Top view of the present application; Figure 6 Top view of the present application;

[0035] Figure 10 Partial assembly front view of the main splicing strip, splicing device and base of the present application;

[0036] Figure 11 Enlarged view of C of the present application; Figure 10 Enlarged view of C of the present application;

[0037] Figure 12 Structure diagram of the joint between two adjacent thermal insulation boards;

[0038] Figure 13 Structure diagram of the splicing device of the present application;

[0039] Figure 14 Structure diagram of the main splicing strip of the present application;

[0040] Figure 15 Structure diagram of the base of the present application;

[0041] Figure 16 Structure diagram of the auxiliary splicing strip of the present application.

[0042] The reference numerals in the attached drawings represent: 1-Insulation board, 101-Surface layer, 102-Folded plate layer, 1021-Connecting plate body, 1022-Adhesive plate body, 1023-Prismatic cavity, 103-Supporting layer, 104-Insulation layer, 2-Main splicing strip, 201-Main connecting plate body, 202-Main arc-shaped snap-fit ​​part, 2021-Raised stripe, 203-Strip hole, 3-Secondary splicing strip, 301-Secondary connecting plate body, 302-Secondary arc-shaped snap-fit ​​part, 303-Snap-fit ​​plate, 4-Splicer, 401-Splicing plate body, 402-Plug-in body, 403-Hook, 5-Base, 501-Bottom plate, 502-Side connecting plate, 503-Mezzanine plate, 504-Mounting hole, 505-Anti-slip protrusion, 6-Slider, 7-Sealant. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0044] Examples, such as Figures 1 to 16 As shown, an easy-to-install and splice exterior wall insulation board includes an insulation board 1. The insulation board 1 sequentially includes a surface layer 101, a folded plate layer 102, a support layer 103, and an insulation layer 104. When installed on a wall, the insulation layer 104 is in close contact with the wall surface. The surface layer 101 and the support layer 103 are connected and fixed through the folded plate layer 102. The folded plate layer 102 includes a connecting plate body 1021, an adhesive plate body 1022, and a prism cavity 1023 formed by the connecting plate body 1021 and the adhesive plate body 1022. The adhesive plate body 1022 can fit against the surface layer 101 and the support layer 103, thereby allowing for easy installation and splicing. The bonding method fixes the support layer 103 to the folded plate layer 102 and the surface layer 101 to the folded plate layer 102. Overall, the prism cavity 1023 is a hollow structure, and multiple hollow prism cavities 1023 are formed between the surface layer 101 and the folded plate layer 102, thereby forming an effective thermal insulation structure between the surface layer 101 and the folded plate layer 102. The thermal insulation layer 104 is the main thermal insulation layer 104, and the thermal insulation layer 104 and the folded plate layer 102 form a double-layer thermal insulation structure in the entire thermal insulation board 1, which effectively improves the overall thermal insulation effect of the thermal insulation board 1.

[0045] Advantageously, the longitudinal direction of the prism cavity 1023 forms an angle of 45 degrees with each side of the insulation board 1, for reference. Figures 5 to 9The 45-degree inclination design of the prism cavity 1023 ensures that the cross sections of the prism cavity 1023 on the two vertical sides of the rectangular insulation board 1 are the same. At the same time, the same cross section shape can be obtained whether the insulation board 1 is cut parallel to the long side or parallel to the short side.

[0046] It should be noted that the current modular insulation board 1 has a special structure designed for overlapping at the edge to achieve splicing and installation. However, in the actual installation process, if it is found that the remaining area is not large enough to install a whole standard-process insulation board 1 when finishing the wall, it needs to be cut before installation. However, after cutting, the overlapping edge will be cut off, and the insulation board 1 with the overlapping edge cut off is not easy to install. However, the insulation board 1 of this application does not have this problem. During the cutting process, as long as the cutting is done along the length and length of the insulation board 1, a folded plate layer 102 with the same cross-sectional shape can be obtained. The insulation board 1 can be easily installed by cooperating with the splicer 4 through the prism cavity 1023 on the folded plate layer 102.

[0047] In this embodiment, a splicing frame assembly is also included for connecting and fixing multiple insulation boards 1. The insulation boards 1 are installed and fixed on the splicing frame assembly by the splicer 4. The splicing frame assembly includes a main splicing strip 2 and multiple secondary splicing strips 3 between two adjacent main splicing strips 2. The main splicing strip 2 includes a main connecting plate 201 and a main arc-shaped snap-fit ​​part 202. The main splicing strip 2 is fixed to the wall by multiple bases 5. The main splicing strip 2 and the secondary splicing strips 3 are perpendicular to each other. The two ends of the secondary splicing strips 3 are snapped into the main arc-shaped snap-fit ​​part 202 in the main splicing strip 2. Both the main splicing strip 2 and the secondary splicing strips 3 are used for splicing between two adjacent insulation boards 1.

[0048] Advantageously, it also includes a splicer 4, which is inserted into the side of the folded plate layer 102 to be fixedly installed on the insulation board 1. The splicer 4 is used to complete the snap-fit ​​fixing between the insulation board 1 and the main splicing strip 2 or the insulation board 1 and the secondary splicing strip 3. The splicer 4 includes a splicing plate body 401 and an insert body 402. The included angle between the splicing plate body 401 and the insert body 402 is 45 degrees. Multiple evenly arranged insert bodies 402 are fixed on the splicing plate body 401. The insert bodies 402 are inserted into the folded plate layer 102 through prism cavities 1023 on the folded plate layer 102, thereby installing and fixing the splicer 4 on the insulation board 1. After the insert body 402 is inserted into the folded plate layer 102, the splicing plate body 401 is tightly attached to the side of the insulation board 1. Figure 11 A hook 403 is fixedly provided on one side of the splicing panel 401. The hook 403 hooks with the end of the main arc-shaped snap-fit ​​part 202, and then combines... Figure 12After the splicer 4 is installed on the thermal insulation board 1 and the installation of the thermal insulation board 1 and the main splicing strip 2 is completed, the two sides of the main arc-shaped clamping portion 202 are provided with the thermal insulation board 1 and the hook portion 403 respectively, so that the thermal insulation board 1 and the main splicing strip 2 are fixed in the horizontal direction.

[0049] Beneficially, the thermal insulation layer 104 is preferably a porous structure layer such as a sponge. The porous structure not only has good thermal insulation effect, but also has certain compressibility. The distance from the top end of the main arc-shaped clamping portion 202 to the wall surface is designed to be less than 3-6 mm after the thermal insulation board 1. After the clamping between the thermal insulation board 1 and the main splicing strip 2 is completed, the thermal insulation layer 104 is compressed to a certain extent, and the resilience of the thermal insulation layer 104 can also make the splicer 4 always press the end of the main arc-shaped clamping portion 202 to complete the installation between the main splicing strip 2 and the thermal insulation board 1, and ensure the tightness of the installation. Moreover, the contact between the main arc-shaped clamping portion 202 and the adjacent two thermal insulation boards 1 completes the splicing. When the size of the splicing joint changes due to thermal expansion and cold contraction, the arc-shaped structure of the main arc-shaped clamping portion 202 can also adaptively change the bending radius with the size of the gap, so as to ensure the thermal insulation effect of the flat joint.

[0050] Preferably, the arc of the main arc-shaped clamping portion 202 is preferably a semi-elliptical arc.

[0051] Beneficially, the base 5 includes a bottom plate 501 and a connecting plate for connecting and fixing with the main connecting plate body 201. The bottom plate 501 is fixed perpendicularly to the connecting plate. The bottom plate 501 is attached to the wall surface. The bottom plate 501 is provided with a mounting hole 504. The bottom plate 501 is fixed to the wall surface by expansion bolts at the mounting hole 504. A plurality of anti-skid protrusions 505 are fixed to the side of the bottom plate 501 close to the wall surface. When the bottom plate 501 is fixed to the wall surface by a single expansion bolt, the anti-skid protrusions 505 are inserted into the wall surface to effectively prevent the bottom plate 501 from rotating on the wall surface, thereby ensuring the stability of the base 5 installed on the wall surface.

[0052] Beneficially, the main splicing strip 2 and the base 5 are further provided with an adjusting assembly, the adjusting assembly comprises strip-shaped holes 203 opened on the main connecting plate body 201, sliding blocks 6 arranged between the strip-shaped holes 203, connecting screws for connecting the sliding blocks 6 and the base 5, and mounting holes 504 which are strip-shaped and parallel to the main splicing strip 2, the inclined directions of two adjacent strip-shaped holes 203 on the main splicing strip 2 are opposite, the sliding blocks 6 are slidingly arranged in the strip-shaped holes 203, the connecting plate comprises a sandwich plate 503 and two side connecting plates 502 fixedly arranged on both sides of the sandwich plate 503, the sliding blocks 6 are arranged between the two side connecting plates 502, the connecting screws pass through the sliding blocks 6, and the connecting screws are fixedly connected with the connecting plate. The common function of the adjusting assembly is as follows: when the main splicing strip 2 is installed, the wall surface is not necessarily flat, and there is a certain concave and convex, during the installation of the main splicing strip 2, the main arc-shaped clamping part 202 is taken as a reference, the main arc-shaped clamping part 202 is kept flat, then the base 5 is fixed, the base 5 drives the sliding blocks 6 to move by moving the base 5 in the length direction of the main splicing strip 2, the strip-shaped holes 203 are in an inclined state, and thus the installation position of the base 5 in the length direction of the main splicing strip 2 can be changed, the distance between the main arc-shaped clamping part 202 and the base plate 501 can be changed, and thus the main arc-shaped clamping part 202 is kept flat, so that each installed thermal insulation board 1 is flat, and reference Figure 14 The inclined directions of two adjacent strip-shaped holes 203 are opposite, so that the main arc-shaped clamping part 202 cannot move up and down or left and right after the base 5 cooperating with the two strip-shaped holes 203 is fixed, and the main splicing strip 2 is fixed.

[0053] In the embodiment, the auxiliary splicing strip 3 comprises an auxiliary connecting plate body 301 and an auxiliary arc-shaped clamping part 302, the auxiliary connecting plate body 301 has the same structure as the main connecting plate body 201, and the auxiliary arc-shaped clamping part 302 has the same structure as the main arc-shaped clamping part 202. The auxiliary splicing strip 3 is used for joint treatment between two adjacent thermal insulation boards 1.

[0054] In the embodiment, two clamping plates 303 are fixedly arranged at two ends of the auxiliary splicing strip 3, the clamping plates 303 cooperate with the end portions of the main arc-shaped clamping part 202 to complete clamping of the auxiliary splicing strip 3 and the main splicing strip 2, so that when two adjacent thermal insulation boards 1 are assembled, the auxiliary splicing strip 3 only needs to be arranged between the two thermal insulation boards 1, and in another fixing mode, the auxiliary splicing strip 3 can also be fixed to the wall surface through the base 5.

[0055] Beneficially, in order to ensure that the sealing glue 7 at the splicing joint position can be firmly adhered during gluing, the outer surface of the main arc-shaped clamping part 202 is fixedly provided with protruding stripes 2021, and the protruding stripes 2021 can effectively enhance the connection effect between the sealing glue 7 and the main arc-shaped clamping part 202.

[0056] In the second embodiment, based on the first embodiment, a construction method for facilitating installation of the spliced external wall insulation board 1 is further provided, and specifically includes the following steps:

[0057] S1, preparation before construction, clean the building external wall base, the flatness error of the cleaned base is not more than 5mm, and there is no oil stain, no dust, no impurities such as clear water, and according to the design requirements and the size of the insulation board 1, the elastic line is divided into grids to determine the installation position and layout sequence of the insulation board 1, and various tools and auxiliary materials required for construction are prepared.

[0058] S2, complete the installation of the main splicing strip 2, install the first main splicing strip 2 from the bottom of the wall, punch along the elastic line position, insert the expansion bolt, at the same time, adjust the horizontal position of the base 5 to ensure that the installed main splicing strip 2 is straight, then tighten the expansion bolt to fix the base 5, and finally complete the installation and fixation of the whole main splicing strip 2.

[0059] S3, install the splicer 4 on the insulation board 1 and smear the adhesive, insert the four edges of the insulation board 1 into the splicer 4, and evenly smear a layer of special adhesive on the back of the insulation board 1, the smearing area of the adhesive is not less than 40% of the area of the insulation board 1, and the adhesive should be evenly and continuously smeared, without omission and accumulation.

[0060] S4, place the insulation board 1 with the splicer 4 inserted on the main splicing strip 2 in turn, and place the auxiliary splicing strip 3 between the adjacent two insulation boards 1, keep the two insulation boards 1 and the auxiliary splicing strip 3 between the two insulation boards 1 tightly bonded, finally complete the installation of the insulation board 1 above the main splicing strip 2, and then install the main splicing strip 2 above the insulation board 1.

[0061] S5, repeat the operation procedures of S2-S4 to finally complete the installation operation of the whole wall.

[0062] S6, sealant 7 is applied at the joint of each board to prevent water leakage at the joint.

[0063] The above specific embodiments further illustrate the purpose, technical solutions and beneficial effects of the present application. It should be understood that the above description is only a specific embodiment of the present application and is not used to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An external wall thermal insulation panel facilitating installation and splicing, characterized in that, The utility model relates to a kind of thermal insulation board and its installation structure, including; Thermal insulation board (1), the thermal insulation board (1) includes face layer (101) in turn, baffle layer (102), support layer (103) and thermal insulation layer (104), the baffle layer (102) includes connecting plate body (1021), adhesive plate body (1022) and the prism cavity (1023) surrounded by connecting plate body (1021) and adhesive plate body (1022), the length direction of the prism cavity (1023) and the angle of each side of the thermal insulation board (1) are all 45 degrees; Splicer (4), the splicer (4) is inserted with side edge of the baffle layer (102) to be fixedly installed on the thermal insulation board (1); Splicing frame assembly, the thermal insulation board (1) is installed and fixed on splicing frame assembly by the splicer (4), and the splicing frame assembly includes main splicing strip (2) and multiple vice splicing strips (3) between adjacent two main splicing strips (2).

2. The external wall insulation board according to claim 1, wherein, The main splicing strip (2) is fixed on wall body by multiple bases (5).

3. The external wall insulation board according to claim 2, wherein, The main splicing strip (2) includes main connecting plate body (201) and main arc-shaped clamping portion (202), and the main splicing strip (2) is fixed on wall body by multiple bases (5), and the main splicing strip (2) is perpendicular to the vice splicing strip (3) and is matched.

4. The external wall thermal insulation board according to claim 1, wherein, The splicer (4) includes splicing plate body (401) and insertion body (402), the angle between the splicing plate body (401) and the insertion body (402) is 45 degrees, multiple insertion bodies (402) are uniformly arranged on the splicing plate body (401), the insertion body (402) is inserted and matched with the baffle layer (102) through the prism cavity (1023) on the baffle layer (102), and the splicing plate body (401) is fixedly provided with hook portion (403) on one side.

5. The exterior wall insulation board according to claim 3, wherein, The arc of the main arc-shaped clamping portion (202) is semelliptical arc.

6. The external wall insulation board according to claim 2 or 3, wherein, The base (5) includes bottom plate (501) and connecting plate, the connecting plate is used to be connected and fixed with the main splicing strip (2), the bottom plate (501) is fixedly connected with the connecting plate, the installation hole (504) is formed in the bottom plate (501), the bottom plate (501) is fixed with multiple anti-skid protrusions (505) on the side close to wall surface by expansion bolt at the installation hole (504).

7. The exterior wall insulation board according to claim 3, wherein, ​ 8. The exterior wall insulation board according to claim 7, wherein, The connecting plate comprises a sandwich plate (503) and two side connecting plates (502) fixed on both sides of the sandwich plate (503), the sliding block (6) is arranged between the two side connecting plates (502), and the connecting screw passes through the sliding block (6) and is fixedly connected with the connecting plate.

9. The exterior wall insulation board according to claim 3, wherein, The auxiliary splicing strip (3) comprises an auxiliary connecting plate body (301) and an auxiliary arc-shaped clamping portion (302), the auxiliary connecting plate body (301) is the same in structure as the main connecting plate body (201), the auxiliary arc-shaped clamping portion (302) is the same in structure as the main arc-shaped clamping portion (202), and two clamping plates (303) are fixed to two ends of the auxiliary splicing strip (3).

10. A construction method for facilitating installation of spliced external wall insulation panels, characterised in that, The method comprises the following steps: S1, preparation before construction, cleaning the base layer of the building outer wall; S2, installing the main splicing strip (2), installing the first main splicing strip (2) from the bottom end of the wall, punching along the position of the elastic line, inserting the expansion bolt, at the same time, adjusting the horizontal position of the base (5), ensuring that the installed main splicing strip (2) is straight, then tightening the expansion bolt to fix the base (5), finally completing the installation and fixation of the whole main splicing strip (2); S3, inserting the four edges of the insulation board (1) into the splicing device (4), and evenly applying a layer of special adhesive on the back of the insulation board (1); S4, placing the insulation board (1) with the splicing device (4) inserted into the main splicing strip (2) in sequence, and placing the auxiliary splicing strip (3) between the two adjacent insulation boards (1), keeping the two insulation boards (1) and the auxiliary splicing strip (3) between the two insulation boards (1) closely attached, finally completing the installation of the insulation board (1) above the main splicing strip (2), and then installing the main splicing strip (2) above the insulation board (1); S5, repeating the operation procedures of S2-S4 to finally complete the installation operation of the whole wall; S6, sealing glue (7) is applied at the splicing joint of each board to prevent water leakage at the splicing joint.

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