Building insulation board

Abstract

The invention relates to the technical field of building heat preservation, and discloses a building heat preservation plate which comprises an outer wall body, a heat preservation plate body is arranged on the front face of the outer wall body, a matching device is fixedly installed at the position, corresponding to the center position of the heat preservation plate body, of the front face of the outer wall body, an upper arc-shaped clamping groove is formed in the top of the heat preservation plate body, and a lower arc-shaped clamping groove is formed in the bottom of the heat preservation plate body. A locking device is fixedly arranged in a gap between the heat preservation plates on the front surface of the outer wall body, and the locking device above the heat preservation plates is correspondingly matched with the upper arc-shaped clamping groove. The locking device located above the heat preservation plate is correspondingly matched with the upper arc-shaped clamping groove, the locking device located below the heat preservation plate is correspondingly matched with the lower arc-shaped clamping groove, the upper arc-shaped clamping groove in the lower layer is matched with the locking device, and the lower arc-shaped clamping groove in the upper layer is matched with the locking device. It can be guaranteed that the middle position of the upper-layer heat preservation plate corresponds to the joint of the lower-layer heat preservation plate, it is guaranteed that the upper-layer heat preservation plate and the lower-layer heat preservation plate are correctly staggered, and the practicability of the device is improved.

Description

Technical Field

[0001] The present application relates to the technical field of building insulation, and in particular to a building insulation board. Background Art

[0002] In order to ensure the insulation of the building and the effect of isolating the external high temperature, insulation boards will be installed on the exterior walls of the building, and in order to simplify the process, the exterior wall tiles will be directly combined with the insulation boards. After the installation of the insulation boards is completed, the exterior wall tiles will also be installed at the same time. In order to ensure the structural strength of the tiles, rivets will be used to nail them directly in the center of the insulation boards, and the nail heads will be drilled directly into the wall, or rivets will be used to fix the corners of the insulation boards. Since the mainstream insulation boards are combined with exterior wall tiles, riveting in the center will affect the appearance. At the same time, the structural strength of the corners of the insulation boards is relatively weak. Direct riveting will cause certain damage to the corners of the insulation boards, resulting in the problem of weak fixing strength. In this regard, the present application document proposes a building insulation board, which aims to solve the above-mentioned problems. Summary of the Invention

[0003] This application proposes a building insulation board, which has the advantages of ensuring that the insulation board is in a horizontal state and the flatness of the outer surface during construction, so as to solve the problem that traditional insulation boards need to continuously measure the horizontality and outer surface flatness during construction, resulting in reduced construction efficiency.

[0004] To achieve the above-mentioned purpose, the present application adopts the following technical solution: a building insulation board, including an exterior wall, an insulation board is provided on the front of the exterior wall, a matching device is fixedly installed at a position on the front of the exterior wall corresponding to the center position of the insulation board, an upper arc-shaped slot is provided on the top of the insulation board, and a lower arc-shaped slot is provided on the bottom of the insulation board. A locking device is fixedly provided in the gap between the insulation boards on the front of the exterior wall, and the locking device located above the insulation board corresponds to the upper arc-shaped slot, and the locking device located below the insulation board corresponds to the lower arc-shaped slot.

[0005] Furthermore, the upper arc-shaped slot is located near the middle of the top of the insulation board, and the lower arc-shaped slot is located near the two sides of the bottom of the insulation board. An upper fan-shaped slot is provided on the inner wall of the upper arc-shaped slot away from the middle of the insulation board. The cross-sectional shape of the upper fan-shaped slot is fan-shaped and the expansion angle is ninety degrees. A lower fan-shaped slot is provided on the inner wall of the lower arc-shaped slot near the two sides of the insulation board. The structure of the lower fan-shaped slot is the same as that of the upper fan-shaped slot, and a reinforcement shell is fixedly installed inside the upper and lower fan-shaped slots.

[0006] Furthermore, a push block is movably installed inside the upper arc-shaped slot, a transmission rod is fixedly installed on the bottom of the push block, an arc plate is fixedly installed on one end of the transmission rod, the top of the push block is set as a slope, the push block passes through the reinforcement shell and the slope part of the top of the push block extends to the interior of the reinforcement shell.

[0007] Furthermore, the outer shape of the arc-shaped plate is arc-shaped, and a matching seat is provided on the inner arc surface of the arc-shaped plate.

[0008] Furthermore, the matching device includes a connecting seat, a fixing pin is provided on the outer surface of the connecting seat, a connecting groove is provided inside the connecting seat, and the fixing pin and the matching seat are in a corresponding state.

[0009] Furthermore, the locking device includes a cylindrical base, an impact fixing device and a screw-in fixing device, wherein a center hole is formed at one end of the cylindrical base, fan-shaped slots are formed at both ends of the cylindrical base at positions outside the center hole, and lock buckles are fixedly installed on both sides of the outer surface of the cylindrical base; Specifically, the columnar base cooperates with the upper arc-shaped slot or the lower arc-shaped slot after being fixed, one end of the lock buckle is arc-shaped, and when the columnar base rotates, the lock buckle can be screwed into the interior of the reinforcement shell.

[0010] Furthermore, the impact fixing device includes an impact nail, and a first matching plate is fixedly installed near the middle position of the outer surface of the impact nail. A fan-shaped matching groove is provided on one side of the first matching plate, and the structure and specifications of the fan-shaped matching groove are the same as those of the fan-shaped card slot.

[0011] Furthermore, the screw-in fixing device includes a threaded nail, and a second matching plate is fixedly installed on the outer surface of the threaded nail near the end. The structure of the second matching plate is the same as that of the fan-shaped matching groove.

[0012] Furthermore, the impact fixing device and the screw-in fixing device can be used interchangeably; Specifically, the impact nail is fixed by impacting, and the threaded nail is fixed by screwing.

[0013] This application has the following beneficial effects.

[0014] During the installation process, the device utilizes the staggered distribution of the upper arc-shaped slot and the lower arc-shaped slot. The middle position of the upper insulation board corresponds to the connection point of the lower insulation board, ensuring that the upper and lower insulation boards are in the correct staggered positions. The top and bottom surfaces of the lock are in contact with the bottom surface of the upper insulation board and the top surface of the lower insulation board respectively, so that the insulation board can remain in a horizontal state. The columnar base is fixed under the screw-in action of the screw-in fixing device, and the distance between the columnar base and the insulation board is the same, which enables the lock to rotate into the interior of the reinforced shell, so that the insulation board and the outer wall can remain parallel, thereby ensuring the flatness of the insulation board after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments disclosed herein and, together with the description, serve to explain the principles disclosed herein.

[0016] The present disclosure can be more clearly understood from the following detailed description with reference to the accompanying drawings, in which: Figure 1 It is a structural diagram of the present invention; Figure 2 It is a cross-sectional view of the structure of the present invention; Figure 3 This is a diagram of the structural insulation board of the present invention; Figure 4 This is a rear view of the structural insulation board of the present invention; Figure 5 This is a cross-sectional view of the structural insulation board of the present invention; Figure 6 This is a structural connection diagram of the present invention; Figure 7 This is a diagram of the structure and device of the present invention; Figure 8 This is a diagram of the structural locking device and impact fixing device of the present invention; Figure 9 This is a diagram of the structural locking device and the screw-in fixing device of the present invention.

[0017] In the figure; 1. outer wall; 2. insulation board; 3. matching device; 31. connecting seat; 32. fixing nail; 33. connecting groove; 4. upper arc-shaped slot; 5. lower arc-shaped slot; 6. locking device; 61. columnar base; 62. impact fixing device; 621. impact nail; 622. first matching plate; 623. fan-shaped matching slot; 63. screw-in fixing device; 631. threaded nail; 632. second matching plate; 64. center hole; 65. fan-shaped slot; 66. lock; 7. upper fan-shaped slot; 8. lower fan-shaped slot; 9. reinforcement shell; 10. push block; 11. transmission rod; 12. arc-shaped plate; 13. matching seat. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0019] A building insulation board, see Figure 1-Figure 2 , including an outer wall 1, an insulation board 2 is provided on the front of the outer wall 1, a matching device 3 is fixedly installed at a position corresponding to the center position of the insulation board 2 on the front of the outer wall 1, an upper arc-shaped slot 4 is provided on the top of the insulation board 2, and a lower arc-shaped slot 5 is provided on the bottom of the insulation board 2. A locking device 6 is fixedly provided in the gap between the insulation boards 2 on the front of the outer wall 1, and the locking device 6 located above the insulation board 2 corresponds to the upper arc-shaped slot 4, and the locking device 6 located below the insulation board 2 corresponds to the lower arc-shaped slot 5.

[0020] When installing the building insulation board, in order to ensure the overall installation strength, the upper and lower insulation boards are installed in a staggered manner. In the device involved in this application document, since the upper arc-shaped slot 4 is located near the middle of the top of the insulation board 2, the lower arc-shaped slot 5 is located near the two sides of the bottom of the insulation board 2, and the locking device 6 located above the insulation board 2 corresponds to the upper arc-shaped slot 4, and the locking device 6 located below the insulation board 2 corresponds to the lower arc-shaped slot 5, this makes it possible for the upper arc-shaped slot 4 of the lower layer to be staggered when installing the insulation board 2. The locking device 6 cooperates with the lower arc-shaped slot 5 of the upper layer and the locking device 6 to ensure that the middle position of the upper insulation board 2 corresponds to the connection point of the lower insulation board 2, ensuring that the upper and lower insulation boards 2 are in the correct staggered positions, and ensuring the overall structural strength. Traditional insulation boards lack positioning parts and require manual measurement or construction experience of construction workers for positioning, which is more inconvenient to operate and increases uncertainty factors, which can easily cause the problem of inaccurate installation position. The device involved in this application document avoids this problem very well and improves the practicality of the device.

[0021] See also Figure 1-Figure 5 The upper arc groove 4 is located near the middle of the top of the insulation board 2, and the lower arc groove 5 is located near the two sides of the bottom of the insulation board 2. An upper fan-shaped groove 7 is provided on the inner wall of the upper arc groove 4 away from the middle of the insulation board 2. The cross-sectional shape of the upper fan-shaped groove 7 is fan-shaped and the expansion angle is ninety degrees. A lower fan-shaped groove 8 is provided on the inner wall of the lower arc groove 5 near the two sides of the insulation board 2. The structure of the lower fan-shaped groove 8 is the same as that of the upper fan-shaped groove 7. A reinforcement shell 9 is fixedly installed inside the upper fan-shaped groove 7 and the lower fan-shaped groove 8.

[0022] See also Figure 5-Figure 6 A push block 10 is movably installed inside the upper arc-shaped slot 4, a transmission rod 11 is fixedly installed at the bottom of the push block 10, and an arc plate 12 is fixedly installed at one end of the transmission rod 11. The top of the push block 10 is set as a slope, and the push block 10 passes through the reinforcement shell 9 and the sloped part of the top of the push block 10 extends to the inside of the reinforcement shell 9.

[0023] See also Figure 6 The outer shape of the arc plate 12 is arc-shaped, and a matching seat 13 is provided on the inner arc surface of the arc plate 12.

[0024] See also Figure 6-Figure 7 The matching device 3 includes a connecting seat 31, a fixing pin 32 is provided on the outer surface of the connecting seat 31, a connecting groove 33 is provided inside the connecting seat 31, and the fixing pin 32 and the matching seat 13 are in a corresponding state.

[0025] See also Figure 8-Figure 9 The locking device 6 includes a cylindrical base 61, an impact fixing device 62 and a screw-in fixing device 63. A center hole 64 is opened at one end of the cylindrical base 61, and fan-shaped card slots 65 are opened at both ends of the cylindrical base 61 at the position outside the center hole 64. Lock buckles 66 are fixedly installed on both sides of the outer surface of the cylindrical base 61; During the installation of the insulation board 2, the presence of the lock 66 can keep the upper and lower layers of the insulation board 2 at a fixed distance, which can facilitate the subsequent application of sealing glue. According to the project requirements, a locking device 6 with locks 66 of different widths and columnar bases 61 of different diameters is used to adjust the distance between the upper and lower layers of the insulation board 2 after installation, thereby improving the practicality of the device.

[0026] Since the upper arc slot 4 is located near the middle of the top of the insulation board 2, and the lower arc slot 5 is located near the two sides of the bottom of the insulation board 2, the upper arc slot 4 and the lower arc slot 5 can play a fool-proof effect, avoiding the situation where construction workers turn the top and bottom upside down during the installation process, resulting in the upper arc slot 4 and the lower arc slot 5 not being able to correctly correspond to the columnar base 61, causing the top surface of the insulation board 2 to tilt, thereby improving the reliability of the device.

[0027] After being fixed, the cylindrical base 61 matches with the upper arc-shaped slot 4 or the lower arc-shaped slot 5 . One end of the lock buckle 66 is arc-shaped, and when the cylindrical base 61 rotates, the lock buckle 66 can be screwed into the interior of the reinforcement shell 9 .

[0028] See also Figure 8 The impact fixing device 62 includes an impact nail 621, and a first matching plate 622 is fixedly installed near the middle position of the outer surface of the impact nail 621. A fan-shaped matching groove 623 is provided on one side of the first matching plate 622. The structure and specifications of the fan-shaped matching groove 623 are the same as those of the fan-shaped card slot 65.

[0029] When the impact fixing device 62 is used to fix the column base 61, the fan-shaped matching groove 623 is in a matched state with the fan-shaped card groove 65, and the column base 61 is in a state where it cannot rotate, and the lock buckle 66 is in a horizontal state. Since the top and bottom surfaces of the lock buckle 66 are in contact with the bottom surface of the upper insulation board 2 and the top surface of the lower insulation board 2 respectively, the upper and lower insulation boards 2 maintain a certain distance, and the locking devices 6 used are of the same specification, which makes the lower insulation board 2 in a horizontal state, and the upper insulation board 2 is in a horizontal state, thereby avoiding the problem that the traditional insulation board needs to be constantly checked for levelness during installation, and the installation process also needs to be constantly adjusted according to the levelness, thereby improving the convenience of the installation process of the device. In addition, the distance maintained between the insulation boards 2 can facilitate the subsequent filling of polyurethane foam material to ensure the flatness of the joints. At the same time, the foam material is combined with the locking device 6 after solidification to improve its firmness.

[0030] When the columnar base 61 that cooperates with the upper arc-shaped slot 4 rotates under the action of the screw-in fixing device 63, the lock buckle 66 enters the interior of the reinforcement shell 9, contacts the inclined surface at the top of the push block 10 and pushes it to move. Under the transmission effect of the transmission rod 11, the arc plate 12 moves toward the direction close to the connecting seat 31, so that the matching seat 13 contacts and locks with the connecting groove 33, thereby improving the connection strength between the insulation board 2 and the outer wall 1. When the locking device 6 inside the upper arc-shaped slot 4 becomes loose, the locking of the matching seat 13 and the connecting groove 33 can still ensure that the top of the insulation board 2 will not loosen, thereby improving the reliability of the device.

[0031] See also Figure 8-Figure 9 The screw-in fixing device 63 includes a threaded nail 631 , and a second matching plate 632 is fixedly installed on the outer surface of the threaded nail 631 near the end. The structure of the second matching plate 632 is the same as that of the fan-shaped matching groove 623 .

[0032] See also Figure 8-Figure 9 , the impact fixing device 62 and the screw-in fixing device 63 can be used alternatively; The impact nail 621 is fixed by impacting, and the threaded nail 631 is fixed by screwing.

[0033] After the positioning of the insulation board 2 is completed, the impact fixing device 62 can be disassembled, and the screw-in fixing device 63 can be inserted into the interior of the center hole 64, and the threaded nail 631 is fixedly connected to the outer wall 1 by screwing in a threaded matching manner. In the process of screwing in, the front face of the second matching plate 632 cooperates with the fan-shaped slot 65, and in the process of rotating and screwing in the threaded nail 631, the columnar base 61 will be driven to rotate synchronously. Under this action, the lock buckle 66 rotates into the interior of the reinforcement shell 9, thereby fixing the insulation board 2. Since the columnar base 61 is fixed under the screwing action of the screw-in fixing device 63, and the columnar base 61 is at the same distance from the insulation board 2, the lock buckle 66 rotates into the interior of the reinforcement shell 9, so that the insulation board 2 and the outer wall 1 can remain parallel, thereby ensuring the flatness of the insulation board 2 after installation, thereby avoiding the need to use a ruler to measure the flatness every time an insulation board 2 is installed, reducing the difficulty of using the device and improving practicality.

[0034] The fixing method adopted in this application document will not leave drill holes on the surface of the insulation board 2, thereby ensuring the integrity of the insulation board 2 and improving the overall strength of the insulation board 2. When the material combining the insulation board and wall tiles is used, it will not affect the overall appearance of the building.

[0035] The method of use of the present invention is as follows: When installing the building insulation board, in order to ensure the overall installation strength, the upper and lower insulation boards are installed in a staggered manner. In the device involved in the present application document, since the upper arc-shaped slot 4 is located near the middle of the top of the insulation board 2, the lower arc-shaped slot 5 is located near the two sides of the bottom of the insulation board 2, and the locking device 6 located above the insulation board 2 corresponds to the upper arc-shaped slot 4, and the locking device 6 located below the insulation board 2 corresponds to the lower arc-shaped slot 5. This makes it possible for the upper arc-shaped slot 4 of the lower layer to cooperate with the locking device 6, and the lower arc-shaped slot 5 of the upper layer to cooperate with the locking device 6 during the installation of the insulation board 2, to ensure that the middle position of the upper insulation board 2 corresponds to the connection point of the lower insulation board 2. Ensure that the upper and lower insulation boards 2 are in the correct staggered positions to ensure the overall structural strength. When the impact fixing device 62 is used to fix the column base 61, the fan-shaped matching groove 623 and the fan-shaped card groove 65 are in a matched state, and the column base 61 is in a state where it cannot rotate. At the same time, the lock buckle 66 is in a horizontal state. Since the top and bottom surfaces of the lock buckle 66 are in contact with the bottom surface of the upper insulation board 2 and the top surface of the lower insulation board 2 respectively, the upper and lower insulation boards 2 maintain a certain distance, and the locking devices 6 used are of the same specification, which makes the lower insulation board 2 in a horizontal state, and the upper insulation board 2 is in a horizontal state. In the installation process, it is also necessary to continuously adjust according to the level. During the installation of the insulation board 2, the presence of the lock buckle 66 can keep the upper and lower insulation boards 2 at a fixed distance, which can facilitate the subsequent application of sealing glue, and according to the engineering requirements, the locking device 6 with lock buckles 66 of different widths and columnar bases 61 of different diameters can be used to adjust the distance between the upper and lower layers of the insulation board 2 after installation. Since the upper arc-shaped slot 4 is located near the middle of the top of the insulation board 2 and the lower arc-shaped slot 5 is located near the two sides of the bottom of the insulation board 2, the upper arc-shaped slot 4 and the lower arc-shaped slot 5 can play a fool-proof effect, avoiding the situation where the construction workers are upside down during the installation process, resulting in the upper arc-shaped slot 4 and the lower arc-shaped slot 5 not being able to correctly correspond to the columnar base 61 respectively. The top surface of the insulation board 2 is tilted. After the insulation board 2 is positioned, the impact fixing device 62 can be disassembled, and the screw-in fixing device 63 can be inserted into the center hole 64 at the same time. The screw-in fixing device 63 is fixed to the outer wall 1 in a threaded matching manner. In the process of screwing in, the front surface of the second matching plate 632 cooperates with the fan-shaped card groove 65, and in the process of rotating and screwing in the screw-in fixing device 631, the column base 61 is driven to rotate synchronously. Under this action, the lock buckle 66 rotates into the interior of the reinforcement shell 9, thereby fixing the insulation board 2. Since the column base 61 is fixed under the screwing action of the screw-in fixing device 63, and the distance between the column base 61 and the insulation board 2 is the same,This allows the lock buckle 66 to rotate into the interior of the reinforcement shell 9, thereby keeping the insulation board 2 parallel to the outer wall 1, thereby ensuring the flatness of the insulation board 2 after installation. When the columnar base 61 that cooperates with the upper arc-shaped slot 4 rotates under the action of the screw-in fixing device 63, the lock buckle 66 enters the interior of the reinforcement shell 9, contacts the inclined surface of the top of the push block 10 and pushes it to move. Under the transmission effect of the transmission rod 11, the arc plate 12 moves in the direction close to the connecting seat 31, so that the matching seat 13 contacts and locks with the connecting groove 33, thereby improving the connection strength between the insulation board 2 and the outer wall 1. When the locking device 6 inside the upper arc-shaped slot 4 becomes loose, the locking of the matching seat 13 and the connecting groove 33 can still ensure that the top of the insulation board 2 will not become loose.

Claims

1. A building insulation board, characterized in that: The invention comprises an outer wall (1), a heat-insulating plate (2) is provided on the front of the outer wall (1), a matching device (3) is fixedly installed at a position on the front of the outer wall (1) corresponding to the center position of the heat-insulating plate (2), an upper arc-shaped card slot (4) is provided on the top of the heat-insulating plate (2), and a lower arc-shaped card slot (5) is provided on the bottom of the heat-insulating plate (2), and a locking device (6) is fixedly provided in the gap between the heat-insulating plates (2) on the front of the outer wall (1), and the locking device (6) located above the heat-insulating plate (2) corresponds to the upper arc-shaped card slot (4), and the locking device (6) located below the heat-insulating plate (2) corresponds to the lower arc-shaped card slot (5).

2. A building insulation board according to claim 1, characterized in that: The upper arc-shaped slot (4) is located near the middle of the top of the insulation board (2), and the lower arc-shaped slot (5) is located near the two sides of the bottom of the insulation board (2). An upper fan-shaped slot (7) is provided on the inner wall of the upper arc-shaped slot (4) away from the middle of the insulation board (2). The cross-sectional shape of the upper fan-shaped slot (7) is fan-shaped and the expansion angle is ninety degrees. A lower fan-shaped slot (8) is provided on the inner wall of the lower arc-shaped slot (5) near the two sides of the insulation board (2). The structure of the lower fan-shaped slot (8) is the same as that of the upper fan-shaped slot (7). A reinforcement shell (9) is fixedly installed inside the upper fan-shaped slot (7) and the lower fan-shaped slot (8).

3. A building insulation board according to claim 2, characterized in that: A push block (10) is movably mounted inside the upper arc-shaped slot (4), a transmission rod (11) is fixedly mounted on the bottom of the push block (10), an arc-shaped plate (12) is fixedly mounted on one end of the transmission rod (11), the top of the push block (10) is arranged as an inclined surface, the push block (10) passes through the reinforcement shell (9), and the inclined surface portion of the top of the push block (10) extends to the interior of the reinforcement shell (9).

4. A building insulation board according to claim 3, characterized in that: The outer shape of the arc-shaped plate (12) is arc-shaped, and a matching seat (13) is provided on the inner arc surface of the arc-shaped plate (12).

5. A building insulation board according to claim 4, characterized in that: The matching device (3) comprises a connecting seat (31), the outer surface of the connecting seat (31) is provided with a fixing pin (32), the interior of the connecting seat (31) is provided with a connecting groove (33), and the fixing pin (32) and the matching seat (13) are in a corresponding state.

6. A building insulation board according to claim 2, characterized in that: The locking device (6) comprises a columnar base (61), an impact fixing device (62) and a screw-in fixing device (63); a center hole (64) is provided at one end of the columnar base (61); fan-shaped slots (65) are provided at both ends of the columnar base (61) at positions outside the center hole (64); and lock buckles (66) are fixedly mounted on both sides of the outer surface of the columnar base (61); The columnar base (61) cooperates with the upper arc-shaped slot (4) or the lower arc-shaped slot (5) after being fixed, one end of the lock buckle (66) is arc-shaped, and when the columnar base (61) rotates, the lock buckle (66) can be screwed into the interior of the reinforcement shell (9).

7. A building insulation board according to claim 6, characterized in that: The impact fixing device (62) comprises an impact nail (621), a first matching plate (622) being fixedly mounted on a position near the middle of the outer surface of the impact nail (621), a fan-shaped matching groove (623) being provided on one side of the first matching plate (622), and the structure and specifications of the fan-shaped matching groove (623) being the same as those of the fan-shaped card slot (65).

8. A building insulation board according to claim 7, characterized in that: The screw-in fixing device (63) comprises a threaded nail (631), and a second matching plate (632) is fixedly mounted on the outer surface of the threaded nail (631) near the end thereof. The structure of the second matching plate (632) is the same as that of the fan-shaped matching groove (623).

9. A building insulation board according to claim 8, characterized in that: The impact fixing device (62) and the screw-in fixing device (63) can be used interchangeably; The impact nail (621) is fixed by impacting, and the threaded nail (631) is fixed by screwing.

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