An exterior wall insulation block and an exterior wall insulation system

Abstract

This invention discloses an external wall insulation block, comprising an insulation board, an insulation block on one side of the insulation board, and one end of the insulation board connected and fixed to the insulation block via a connecting structure. The connecting structure includes a first locking plate fixed to the inner side of the insulation board and a butt plate fixed to one side of the insulation block. Second locking plates are fixed to both sides of the first locking plate, and side baffles are fixed to both sides of the butt plate. Side rods are fixed to the upper and lower ends of the outer side of the side baffles. The first locking plate is located at the front end of the butt plate, and the side rods are located within the second locking plates. A through hole is provided in the first locking plate, and a mating groove is provided on the side wall of the side baffles. The position can be adjusted according to the height requirements of the site. The two ends of the threaded rod are locked and fixed by fastening nuts to achieve the fastening between the two sets of structures. Having two sets of connecting structures on one side of one set of insulation blocks can improve the structural stability of the insulation blocks during installation and connection.

Description

Technical Field

[0001] This invention relates to the field of thermal insulation block devices, and in particular to an external wall insulation block and an external wall insulation system. Background Technology

[0002] To enhance the thermal insulation performance of buildings and save energy, an external insulation layer is often added to the exterior walls of some buildings. To improve the building's insulation effect, insulation boards are installed in the outer grooves of the insulated exterior walls. The thermal insulation effect of the insulated wall surface is improved by combining insulated blocks and insulation boards in the exterior wall insulation system.

[0003] A thermal insulation board template and thermal insulation board are disclosed in Chinese invention patent application publication CN207110091U. Although this template allows for the creation of thermal insulation boards that fit irregularly shaped structures, avoiding the need for cutting and splicing insulation boards to adhere to these structures and saving time, the assembly or installation of the insulation boards requires manual splicing, which is time-consuming and prone to errors, delaying the progress of the assembly work.

[0004] Furthermore, the existing hollow block structure generally has a through hole in the middle, which creates a cold bridge at both ends of the block, and cannot solve the problem of self-insulation in building use; therefore, the existing external wall insulation methods are all external insulation, which has the following problems: 1. External wall insulation is prone to cracking, hollowing, water seepage and falling off; 2. It is easy for shoddy workmanship to occur during construction; 3. Construction cost is high. Summary of the Invention

[0005] In order to overcome the deficiencies of the prior art, the present invention provides an exterior wall insulation block and an exterior wall insulation system. In this device, through the provided connection structure, the user can snap and fix the insulation board with the docking plate and the first clamping plate. During use, first, the first clamping plate with the protruding structure is snap-fitted with the docking plate of the docking groove, and the position can be adjusted according to the on-site height requirements. Then, the threaded rod is passed through the through-hole, and both ends of the threaded rod are locked and fixed through the fastening nuts respectively to achieve the fastening between the two groups of structures. There are two groups of connection structures arranged on one side of a group of insulation blocks, which can improve the structural stability of the insulation blocks during installation and connection. Through the docking piece structure between the two groups of insulation blocks, the user can place the docking piece in the two concave platforms, and the connecting rod structure passes through the circular hole therein, and finally, it is locked and fixed through the locking nut to connect and fix the two insulation blocks and realize the combination between the two structures. The user can select the number to be connected according to the specific situation. Through the provided outer plate structure, it can be snap-connected with the connecting block on the outside of the content block through the clamping groove structure inside it. The inner convex block and the connecting block structure fixed on the inner side of the content block are snap-connected with the groove body and the sliding groove to achieve the connection and fixing effect of the insulation material. This exterior wall self-insulation block can effectively utilize many traditional blocks that are in an idle state, solving the problem of waste of traditional block resources; the structure of this insulation block structure has been improved, resulting in a more excellent insulation effect; by opening the weight-reducing holes on the inner side of the insulation material, without affecting its structural integrity and insulation effect, the structural mass is reduced, facilitating on-site installation. The content block structure is a "day" character structure, and a partition board structure is provided in the middle, which can play a role in separating the cold bridges on both sides of the insulation block; therefore, the present utility model can achieve self-insulation, saving energy up to 65% of the standard, not requiring external insulation and external fire protection in the building, shortening the construction period of the exterior wall by more than 60% of the efficiency, reducing the comprehensive cost in the building, and making the insulation block have the same lifespan as the whole building.

[0006] To solve the above technical problems, the present invention provides the following technical solution: an external wall insulation block, comprising an insulation board, an insulation block disposed on one side of the insulation board, and one end of the insulation board being connected and fixed to the insulation block via a connecting structure. The connecting structure includes a first locking plate fixed to the inner side of the insulation board and a butt plate fixed to one side of the insulation block. Second locking plates are fixed to both sides of the first locking plate, and side baffles are fixed to both sides of the butt plate. Side rods are fixed to the upper and lower ends of the outer sides of the side baffles. The first locking plate is disposed at the front end of the butt plate, and the side rods are disposed within the second locking plates. A through hole is formed in the first locking plate, and a mating groove is formed on the side wall of the side baffle. Threaded rods are fixed in the through hole and the mating groove, and fastening nuts are fitted on both sides of the threaded rods. The insulation block comprises an outer plate, an inner block disposed within the outer plate, and insulation material fixed within the inner block. The inner block has a rectangular structure, and the insulation material is placed on both sides of the inner block. The outer plate has recessed platforms on both ends of its sidewalls, with connecting holes in the middle of each platform. Each platform has a butt joint with a round hole at its top, and a connecting rod is installed inside the round hole of the butt joint. Both ends of the connecting rod are fitted with locking nuts. Through this connection structure, the user can securely fasten the insulation board with the butt joint and the insulation board with the first locking plate. In use, the first locking plate with the protruding structure is first matched and locked with the butt joint of the butt joint. The position can be adjusted according to the height requirements of the site. Then, the threaded rod is passed through the through hole, and both ends of the threaded rod are locked with fastening nuts to achieve a secure connection between the two sets of structures. Having two sets of connection structures on one side of each set of insulation blocks improves the structural stability of the insulation blocks during installation.

[0007] As a preferred embodiment of the present invention, the thermal insulation blocks are provided in multiple sets on the same side, and the length and depth of the two sets of recessed platforms are adapted to the corresponding dimensions of the mating plates. The outer side of the connecting rod is provided with a threaded structure, and at least two sets of recessed platforms are provided on one side of the outer plate. The multiple sets of thermal insulation block structures can be combined and connected by the thermal insulation plate structure at one end, and by the mating plate-connecting rod structure to connect two adjacent sets of thermal insulation block structures. The connecting rod structure with the threaded structure can be connected and fixed by the locking nuts at both ends. The mating plate structure is locked in the recessed platform and connected and locked by the round hole therein and the internal connecting hole, so as to realize the connection and fixation of the two sets of thermal insulation blocks.

[0008] As a preferred embodiment of the present invention, the second locking plate and the side rod are right-angle hook structures. The hook size of the second locking plate is adapted to the external size of the side rod. The cross-section of the first locking plate is a trapezoidal structure. A protrusion is fixed at the front end of the first locking plate. The side groove is a circular hole groove structure. During connection, the second locking plate can be locked and connected to the side rod through the internally opened hollow groove structure to achieve the hanging effect. The trapezoidal structure of the first locking plate can improve the contact effect and increase the contact force. The protrusion structure can be locked and connected to the mating groove structure. Through the mating groove structure and the mating groove structure opened inside, the first locking plate structure is connected and fixed with the side baffle through the threaded rod and the fastening nut, so as to achieve the connection and fixation of the first locking plate structure and the side baffle.

[0009] As a preferred embodiment of the present invention, the front end of the connecting plate is provided with multiple sets of connecting grooves, the size of which is adapted to the size of the protrusion. Each set of insulation blocks has at least two sets of connecting structures. The connecting plate structure with connecting grooves allows the user to place the connecting piece between two sets of insulation blocks through a connecting plate structure. The connecting rod structure passes through the circular hole and is then locked in place with a locking nut, thus connecting and fixing the insulation blocks together. The user can select the number of connections required based on specific circumstances. It can also be connected and fixed to a first locking plate with a protruding structure to achieve the desired fastening. The two sets of connecting structures improve the connection effect between the insulation blocks and the insulation board, preventing loosening.

[0010] As a preferred embodiment of the present invention, the inner side of the outer plate is provided with a snap-fit ​​groove, which is a semi-circular hole structure. The outer plate structure with the semi-circular hole snap-fit ​​groove can be connected and snapped with the inner block to achieve the fastening requirement and combine the inner and outer structures.

[0011] As a preferred embodiment of the present invention, a connecting block is fixed to the outer side of the content block, and the size of the connecting block is adapted to the size of the snap-fit ​​groove. An inner protrusion and a snap-fit ​​block are fixed to the inner side of the content block. At least two sets of snap-fit ​​blocks are provided on the same side of the inner wall of the content block. The inner protrusion is a column structure with a trapezoidal cross-section protruding inward. The connecting block and the snap-fit ​​groove structure are connected and fixed. The inner concave block and the snap-fit ​​block are snap-fit ​​connected to the groove and the sliding groove, respectively.

[0012] As a preferred embodiment of the present invention, the outer side wall of the thermal insulation material is provided with grooves and channels that are adapted to the dimensions of the connecting block and the inner protrusion, respectively.

[0013] As a preferred technical solution of the present invention, the insulation material has multiple sets of weight-reducing holes in its middle. By opening multiple sets of weight-reducing hole structures in the insulation material, the structural mass is reduced without affecting its insulation effect, which facilitates the actual installation effect.

[0014] An external wall insulation system includes an insulation board, the front end of which is fixedly connected to an adhesive and connecting structure.

[0015] Compared with the prior art, the beneficial effects that this invention can achieve are:

[0016] 1. In this device, through the set connection structure, the user can clamp and fix the insulation board with the docking plate and the first locking plate. In use, the first locking plate with the protruding structure can be matched and locked with the docking plate of the docking groove. The position can be adjusted according to the height requirements of the site. Then, the threaded rod is passed through the through hole, and the two ends of the threaded rod are locked and fixed with fastening nuts to realize the fastening between the two sets of structures. Two sets of connection structures are set on one side of a set of insulation blocks, which can improve the structural stability of the insulation blocks during installation and connection, facilitate insertion and connection, and facilitate on-site disassembly and installation.

[0017] 2. In this device, the user can place the connecting plate between the two sets of insulation blocks through the connecting plate structure, and then pass the connecting rod through the round hole. Finally, the connection is locked and fixed by the locking nut, thus connecting and fixing the insulation blocks and realizing the combination of the two structures. The user can choose the number of connections required according to the specific situation.

[0018] 3. In this device, the outer plate structure can be connected to the connecting block on the outside of the inner block through the internal snap-fit ​​groove structure, while the inner protrusion and connecting block structure fixed inside the inner block can be connected to the groove and slide, thus achieving the connection and fixing effect of the insulation material.

[0019] 4. In this device, by creating weight-reducing holes on the inner side of the insulation material, the structural mass is reduced without affecting its structure and insulation effect, facilitating on-site installation. Without complicating existing integrated self-insulating blocks, this exterior wall self-insulating block can effectively utilize many traditional blocks that are currently idle, solving the problem of resource waste in traditional blocks. The structure of this insulation block has been improved, resulting in a superior insulation effect.

[0020] 5. In this device, the structure of the content block is in the shape of a Chinese character 'Ri' (日). There is a partition board structure in the middle, which can play a role in blocking the cold bridges on both sides of the thermal insulation block. Therefore, the utility model can achieve self-thermal insulation, meeting the standard of saving 65% of energy. In construction, external thermal insulation and external fire protection are not required, and the construction period of the external wall masonry can be shortened by more than 60%. In construction, the comprehensive cost can be reduced, and the thermal insulation block can have the same service life as the whole building. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 One of the structural schematic diagrams of the present invention;

[0022] Figure 2 The top view of the structure of the present invention;

[0023] Figure 3 The structural schematic diagram of the insulation board, connection structure and thermal insulation block of the present invention;

[0024] Figure 4 The structural exploded view of the present invention;

[0025] Figure 5 The structural schematic diagram of the first clamping board and the second clamping board of the present invention;

[0026] Figure 6 The structural schematic diagram of the peripheral board and the content block of the present invention

[0027] Figure 7 The structural schematic diagram of the content block and the thermal insulation material of the present invention

[0028] Figure 8 The structural schematic diagram of two groups of thermal insulation blocks of the present invention.

[0029] Where: 1. Insulation board; 2. Connection structure; 21. First clamping board; 211. Through hole; 212. Protrusion; 22. Docking board; 221. Docking groove; 23. Second clamping board; 231. Side groove; 24. Threaded rod; 241. Locking nut; 25. Side rod; 26. Side baffle; 261. Matching groove; 3. Thermal insulation block; 31. Peripheral board; 311. Clamping groove; 312. Concave platform; 313. Connection hole; 32. Content block; 321. Connection block; 322. Clamping block; 323. Inner convex block; 33. Thermal insulation material; 331. Slide groove; 34. Weight reduction hole; 35. Docking piece; 36. Connecting rod; 37. Locking nut. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] To make the technical means, creative features, and achieved objectives and effects of this invention easier to understand, the invention is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0031] Example:

[0032] like Figure 1-3As shown, this invention provides an exterior wall insulation block, including an insulation board 1. An insulation block 3 is disposed on one side of the insulation board 1, and one end of the insulation board 1 is connected and fixed to the insulation block 3 through a connecting structure 2. The connecting structure 2 includes a first locking plate 21 fixed to the inner side of the insulation board 1 and a butt plate 22 fixed to one side of the insulation block 3. Second locking plates 23 are fixed on both sides of the first locking plate 21, and side baffles 26 are fixed on both sides of the butt plate 22. During connection, the second locking plate 23 can be locked and connected to the side rod 25 through the internal slot structure to achieve the hanging effect. The first locking plate 21 has a trapezoidal structure, which can improve the contact effect and increase the contact force. The protrusion 212 structure can... The structure is engaged with the docking groove 221 and connected to the mating groove 261 through the docking groove 221 structure and the mating groove 261 structure. It is then connected and fixed by a threaded rod 24 and a fastening nut 241. Both ends of the threaded rod 24 are locked and fixed by the fastening nuts 241, achieving a tight connection between the two sets of structures. Two sets of connecting structures 2 are provided on one side of a set of insulation blocks 3, which can improve the structural stability of the insulation blocks 3 during installation and connection. The first engaging plate 21 structure is connected and fixed to the side baffle 26. Side rods 25 are fixed to the upper and lower ends of the outer side of the side baffle 26. The first engaging plate 21 is located at the front end of the docking plate 22, and the side rods 25 are located inside the second engaging plate 23. A through hole 211 is provided inside the wall of the side baffle 26, and a mating groove 261 is provided on the side wall of the side baffle 26. A threaded rod 24 is fixed in the through hole 211 and the mating groove 261, and fastening nuts 241 are fitted on both sides of the threaded rod 24. The thermal insulation block 3 includes an outer plate 31, an inner block 32 set inside the outer plate 31, and thermal insulation material 33 fixed inside the inner block 32. This self-insulating exterior wall block 3 can effectively utilize many traditional blocks that are idle, solving the problem of waste of traditional blocks. The structure of this thermal insulation block 3 has been improved, resulting in a better thermal insulation effect. The inner block 32 has a H-shaped structure, and the thermal insulation material 33 is set on both sides of the inner block 32. Each end of the enclosure 31 has a recessed platform 312, and each recessed platform 312 has a connecting hole 313 in the middle. Each recessed platform 312 has a mating piece 35 with a round hole at its top. A connecting rod 36 is installed in the round hole of the mating piece 35, and both ends of the connecting rod 36 are fitted with locking nuts 37. Through the connection structure 2, the user can clamp and fix the insulation board 1 with the mating plate 22 and the first locking plate 21. The mating plate 22 with the mating groove 221 can be connected and fixed with the first locking plate 21 with the protrusion 212 to achieve the fastening requirement. The two sets of connection structures 2 can improve the connection effect between the insulation block 3 and the insulation board 1 and avoid loosening.In use, the first locking plate 21 with the protrusion 212 structure can be matched and locked with the docking plate 22 of the docking groove 221. The position can be adjusted according to the height requirements of the site. Then, the threaded rod 24 is passed through the through hole 211, and the two ends of the threaded rod 24 are locked and fixed by the fastening nut 241 to realize the fastening between the two sets of structures. Two sets of connecting structures 2 are set on one side of a set of thermal insulation blocks 3, which can improve the structural stability of the thermal insulation blocks 3 during installation and connection.

[0033] In other embodiments, such as Figure 4 As shown:

[0034] Multiple sets of insulation blocks 3 are provided on the same side, and the length and depth of the two sets of recesses 312 are adapted to the corresponding dimensions of the mating pieces 35. The outer side of the connecting rod 36 is provided with a threaded structure, and at least two sets of recesses 312 are provided on one side of the outer plate 31. By using the mating piece 35 structure between the two sets of insulation blocks 3, the user can place the mating piece 35 in the two sets of recesses 312, and pass it through the circular hole through the connecting rod 36 structure. Finally, it is locked and fixed by the locking nut 37, thus connecting the insulation blocks 3. The two structures are combined to achieve the desired combination. Users can select the number of connections required according to specific circumstances. The second locking plate 23 and the side rod 25 are right-angle hook structures. The hook size of the second locking plate 23 is adapted to the external size of the side rod 25. The cross-section of the first locking plate 21 is a trapezoidal structure. The front end of the first locking plate 21 is fixed with a protrusion 212. The side groove 231 is a round hole groove structure. Multiple sets of weight-reducing holes 34 are opened in the insulation material 33 to reduce its structural weight without affecting its insulation effect, thus facilitating the actual installation effect.

[0035] In other embodiments, such as Figure 6 As shown,

[0036] The front end of the mating plate 22 has multiple sets of mating grooves 221. The size of the mating grooves 221 is adapted to the size of the protrusions 212, and at least two sets of connecting structures 2 are provided on a set of insulation blocks 3.

[0037] In other embodiments, such as Figure 7-8 As shown,

[0038] The outer plate 31 has a snap-fit ​​groove 311 on its inner side. The snap-fit ​​groove 311 is a semi-circular circular hole structure. The outer plate 31 structure with the semi-circular hole snap-fit ​​groove 311 can be connected and snapped with the inner block 32 to achieve the fastening requirement and combine the inner and outer structures. A connecting block 321 is fixed on the outer side of the inner block 32, and the size of the connecting block 321 is adapted to the size of the snap-fit ​​groove 311. The inner block 32 has a H-shaped structure, with a baffle structure in the middle. The connecting block 321 and the snap-fit ​​groove 311 are connected and fixed together. The concave block and the snap-fit ​​block 322 are snap-fitted and connected to the groove and the sliding groove 331 respectively. This can isolate the cold bridge on both sides of the insulation block 3. Therefore, this utility model can achieve self-insulation, saving up to 65% of energy. In buildings, there is no need for external insulation and external fireproofing. It shortens the construction period of the external wall by more than 60%, reduces the overall cost in construction, and makes the insulation block 3 have the same lifespan as the building as a whole. The inner side of the 2 is fixed with an inner protrusion 323 and a locking block 322. The connecting block 321 has at least two sets of locking blocks 322 on the same side of the inner wall of the inner block 32. The inner protrusion 323 is a column structure with a trapezoidal cross-section protruding inward. The outer wall of the insulation material 33 is provided with a sliding groove 331 and a groove structure that are adapted to the size of the connecting block 321 and the inner protrusion 323 respectively. This self-insulating outer wall block 3 can effectively utilize many traditional blocks that are idle, solving the problem of waste of traditional block resources. The structure of this insulation block 3 has been improved, resulting in a better insulation effect. Through the outer plate 31 structure, it can be locked and connected to the connecting block 321 on the outside of the inner block 32 through the locking groove 311 structure inside. The inner protrusion 323 and the connecting block 321 structure fixed on the inner side of the inner block 32 are locked and connected to the groove and sliding groove 331 to achieve the connection and fixing effect of the insulation material 33.

[0039] In other embodiments,

[0040] The insulation material 3 can be made by adding granular polystyrene balls to cement fine stone or cement mortar and then molding it; multiple sets of weight-reducing holes 34 are opened in the middle of the insulation material 33; by opening the weight-reducing holes 34 on the inner side of the insulation material 33, the structural weight is reduced without affecting its structure and insulation effect, which facilitates on-site installation.

[0041] Example 2: An external wall insulation system: including an insulation board 1, the front end of which is fixedly connected to a connecting structure 2 by an adhesive.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An external wall insulation block comprising an insulation panel (1), characterised in that: The heat preservation plate (1) is provided with a heat preservation block (3) on one side, and one end of the heat preservation plate (1) is connected and fixed with the heat preservation block (3) through a connecting structure (2); the connecting structure (2) comprises a first clamping plate (21) fixed on the inner side of the heat preservation plate (1) and a butt plate (22) fixed on one side of the heat preservation block (3), both sides of the first clamping plate (21) are fixed with a second clamping plate (23), both sides of the butt plate (22) are fixed with a side baffle (26), both ends of the outer side of the side baffle (26) are fixed with a side rod (25), the first clamping plate (21) is arranged at the front end of the butt plate (22), the side rod (25) is arranged in the second clamping plate (23), a through hole (211) is formed in the first clamping plate (21), a matching groove (261) is formed in the side wall of the side baffle (26), a threaded rod (24) is fixed in the through hole (211) and the matching groove (261), and a fastening nut (241) is sleeved on both sides of the threaded rod (24); the heat preservation block (3) comprises a peripheral plate (31), a content block (32) arranged on the inner side of the peripheral plate (31) and a heat preservation material (33) fixed on the inner side of the content block (32), the content block (32) is a day structure, and the heat preservation material (33) is arranged on both sides of the content block (32), recesses (312) are formed in the side walls of both ends of the peripheral plate (31), connecting holes (313) are formed in the middle parts of the recesses (312), butt pieces (35) with round holes are arranged at the top ends of the recesses (312), connecting rods (36) are arranged in the round holes of the butt pieces (35), and lock nuts (37) are sleeved on both ends of the connecting rods (36).

2. The external wall insulation block according to claim 1, characterized in that: A plurality of groups of the heat preservation blocks (3) are arranged on the same side, the lengths and depths of the recesses (312) of two groups are matched with the corresponding sizes of the butt pieces (35), a threaded structure is formed on the outer side of the connecting rod (36), and at least two groups of recesses (312) are formed on one side of the peripheral plate (31).

3. The external wall insulation block according to claim 1, characterized in that: The second clamping plate (23) and the side rod (25) are arranged in a right angle, the hooking size of the second clamping plate (23) is matched with the outer size of the side rod (25), the cross section of the first clamping plate (21) is a trapezoidal structure, a protrusion (212) is fixed at the front end of the first clamping plate (21), and a side groove (231) in the form of a round hole is formed in the middle part of the second clamping plate (23).

4. The external wall insulation block according to claim 3, characterized in that: A plurality of butt grooves (221) are formed in the front end of the butt plate (22), the sizes of the butt grooves (221) are matched with the size of the protrusion (212), and at least two groups of connecting structures (2) are arranged on one group of heat preservation blocks (3).

5. The external wall insulation block according to claim 1, characterized in that: A clamping groove (311) is formed in the inner side of the peripheral plate (31), and the clamping groove (311) is in the form of a semicircular hole.

6. The external wall insulation block according to claim 5, characterized in that: The outer side of the content block (32) is fixed with a connecting block (321), and the size of the connecting block (321) is matched with the size of the clamping groove (311), the inner side of the content block (32) is fixed with an inner protruding block (323) and a clamping block (322), the connecting block (321) is provided with at least two groups of clamping blocks (322) on the same side of the inner side wall of the content block (32), and the inner protruding block (323) is a column structure with a trapezoidal cross section which protrudes inward.

7. The external wall insulation block according to claim 6, characterized in that: The outer side wall of the heat preservation material (33) is provided with a sliding groove (331) and a groove structure which are matched with the size of the connecting block (321) and the inner protruding block (323) respectively.

8. The external wall insulation block according to claim 1, characterized in that: The middle part of the heat preservation material (33) is provided with a plurality of groups of lightening holes (34).

9. An external wall insulation system comprising an insulation board (1), characterised in that: The front end of the heat preservation plate (1) is fixedly connected with the connecting structure (2) through bonding.

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