Pre-trepanning type external wall insulation structure

Abstract

The utility model relates to the technical field of building heat preservation, and discloses a pre-trepanning type outer wall heat preservation structure which comprises a heat preservation plate and a connecting piece arranged at the end of the heat preservation plate, the connecting piece comprises a body arranged on an outer wall and a fixing piece, and the body is provided with a containing cavity for containing an expansion pipe and a clamping opening communicated with the containing cavity and provided with an opening deviating from the outer wall. The fixing piece is provided with a clamping part matched with the clamping opening in a clamping mode, and the fixing piece extends towards the side, away from the outer wall, of the heat preservation plate so as to apply extrusion force towards the outer wall to the heat preservation plate, so that the situation that the bonding effect of the heat preservation plate and the outer wall is affected due to the fact that powder generated by trepanning enters the space between the heat preservation plate and the outer wall is avoided. Therefore, the bonding stability of the heat preservation plate and the outer wall is guaranteed, meanwhile, the situation that the bonding effect of the heat preservation plate and the outer wall is affected due to vibration of the heat preservation plate caused by trepanning of the heat preservation plate is avoided, meanwhile, compared with heat preservation nails, the connecting area of the fixing pieces and the heat preservation plate is increased, and the stability of the heat preservation plate is further improved.

Description

Technical Field

[0001] This application belongs to the technical field of building insulation, specifically relating to a pre-perforated external wall insulation structure. Background Technology

[0002] Currently, during the construction of buildings, insulation panels are usually installed on the exterior walls to improve the building's thermal insulation performance, reduce energy consumption, and enhance residents' living comfort.

[0003] In related technologies, the installation of insulation boards involves first applying adhesive to the exterior wall, then installing the insulation boards, drilling holes in both the insulation boards and the exterior wall, and finally securing the insulation boards with insulation nails. However, drilling holes in the insulation boards causes vibrations due to the impact of the drill bit, which affects the adhesion between the insulation boards and the exterior wall. Furthermore, drilling generates dust, which can escape through the holes and enter the space between the insulation boards and the exterior wall, further impacting the adhesion and ultimately affecting the stability of the insulation boards. Utility Model Content

[0004] This application provides a pre-drilled external wall insulation structure to increase the adhesion between the insulation board and the external wall, thereby increasing the connection stability between the insulation board and the external wall.

[0005] The technical solution adopted in this application is as follows:

[0006] A pre-drilled external wall insulation structure includes an insulation board and a connector disposed at the end of the insulation board. The connector includes a body disposed on the external wall and a fixing plate. The body has a receiving cavity for accommodating an expansion tube and a snap-fit ​​interface communicating with the receiving cavity and having an opening facing away from the external wall. The fixing plate has a snap-fit ​​portion that snaps into the snap-fit ​​interface, and the fixing plate extends toward the side of the insulation board facing away from the external wall to apply a compressive force toward the external wall to the insulation board.

[0007] By adopting the above technical solution, when installing the pre-drilled external wall insulation structure of this application, holes are first drilled in the external wall, and then expansion tubes are used to fix the main body. That is, the expansion tubes are inserted into the receiving cavity through the snap-fit ​​interface, and finally the nail head of the expansion tube is pressed against the cavity wall to realize the installation of the main body. Then, glue is applied to the external wall, and the insulation board is installed on the side of the main body so that the insulation board is bonded to the external wall by the glue. Then, the fixing plate is installed so that the snap-fit ​​part is snapped into the snap-fit ​​interface. At this time, the fixing plate applies a squeezing force to the insulation board towards the external wall, thereby completing the installation of the insulation structure. When installing the insulation structure in this application, holes are first drilled in the exterior wall to prevent powder generated from the holes from entering between the insulation board and the exterior wall and affecting the bonding effect between the insulation board and the exterior wall. This ensures the bonding stability between the insulation board and the exterior wall and avoids the situation where the insulation board vibrates due to drilling holes, which would affect the bonding effect between the insulation board and the exterior wall. This further increases the connection stability between the insulation board and the exterior wall. In addition, compared with insulation nails, the fixing plate increases the connection area with the insulation board, which further increases the stability of the insulation board.

[0008] Optionally, card-connecting blocks are provided on both sides of the card interface, and two card-connecting parts are provided corresponding to the card-connecting blocks, with the two card-connecting parts spaced apart to form a deformation space between them.

[0009] By adopting the above technical solution, when installing the fixing plate, first align the snap-fit ​​part with the snap-fit ​​interface, and then press the fixing plate towards the body so that the snap-fit ​​part abuts against the snap-fit ​​block. At the same time, the snap-fit ​​part deforms under the pressure, which gradually reduces the distance between the two snap-fit ​​parts, allowing the snap-fit ​​part to pass over the snap-fit ​​block. Then the snap-fit ​​part returns to its original shape and snaps into the snap-fit ​​block, thus completing the installation of the fixing plate. In this process, only pressing the fixing plate is required, thereby reducing the difficulty of installing the fixing plate and improving the installation efficiency of the pre-drilled external wall insulation structure.

[0010] Optionally, the snap-fit ​​block has a guide surface that guides and engages with the snap-fit ​​portion and a snap-fit ​​surface that engages and engages with the snap-fit ​​block, and the distance between the two guide surfaces gradually decreases along the direction closer to the outer wall.

[0011] By adopting the above technical solution, when the fixing piece is pressed, the snap-fit ​​part first abuts against the guide surface. As the distance between the two guide surfaces gradually decreases along the direction closer to the outer wall, the opening width of the snap-fit ​​interface is increased, making it easier for the snap-fit ​​part to abut against and engage with the snap-fit ​​interface, thereby reducing the difficulty of installing the fixing piece. At the same time, when the fixing piece is pressed further, the snap-fit ​​part applies pressure to the guide surface, causing the snap-fit ​​block to deform under the action of the guide surface, making it easier for the snap-fit ​​part to pass over the snap-fit ​​block and engage with it.

[0012] Optionally, each of the two snap-fit ​​portions has a mating surface on one side opposite to the other, which is guided and engaged with the guide surface, and the distance between the two mating surfaces gradually decreases along the direction closer to the outer wall.

[0013] By adopting the above technical solution, the distance between the two mating surfaces gradually decreases along the direction closer to the outer wall, which in turn causes the distance between the two snap-fit ​​parts on opposite sides to gradually decrease along the direction closer to the body. This further reduces the difficulty of the snap-fit ​​parts entering the snap-fit ​​interface. At the same time, when installing the fixing piece, the mating surfaces abut against the guide surfaces, so that the cooperation between the two guides the deformation of the snap-fit ​​parts, thereby further reducing the snap-fit ​​difficulty between the snap-fit ​​parts and the snap-fit ​​blocks, and further improving the assembly efficiency of the fixing piece.

[0014] Optionally, the fixing piece is provided with a locking part, which is movably connected to the fixing piece, so that the locking part has a locking position that abuts against the snap-fit ​​part and a clearance position that is separated from the snap-fit ​​part.

[0015] By adopting the above technical solution, after the fixing piece is installed on the body, the locking part is operated to move the locking part from the avoidance position to the locking position, and then the locking part abuts against the snap-fit ​​part, so that the locking part and the snap-fit ​​part stop and cooperate, thereby limiting the deformation of the snap-fit ​​part by the locking part, so as to avoid the fixing piece from separating from the body due to the deformation of the snap-fit ​​part, thereby increasing the connection stability between the fixing piece and the body, and further increasing the fixing effect on the insulation board.

[0016] Optionally, the locking part is a locking rod slidably connected to the fixing plate. When the locking rod is in the locked position, the end of the locking rod away from the body is flush with the end face of the fixing plate away from the body and the locking rod abuts against the snap-fit ​​part. When the locking rod is in the avoidance position, the end of the locking rod away from the body is located outside the fixing plate and the locking rod is separated from the snap-fit ​​part.

[0017] By adopting the above technical solution, after the fixing plate is installed onto the main body, the locking rod is pressed towards the main body to cause relative sliding between the locking rod and the fixing plate. This allows the locking rod to move from a clearance position towards the locking position. When the end of the locking rod facing away from the main body is flush with the end face of the fixing plate facing away from the main body, pressing the locking rod stops. At this point, the locking rod is in the locked position, preventing the fixing plate from separating from the main body due to deformation of the locking part. During the operation of the locking part, only pressing is required, reducing the difficulty of operation and improving the locking efficiency of the fixing plate. Simultaneously, since the end of the locking rod facing away from the main body is flush with the end face of the fixing plate facing away from the main body when in the locked position, the aesthetics of the insulation structure are enhanced.

[0018] Optionally, a flexible ring is provided at the end of the locking rod away from the body. When the locking rod is in the locked position, the flexible ring is located inside the fixing piece, so that the flexible ring deforms to fix the locking rod.

[0019] By adopting the above technical solution, when the locking rod is pressed, the locking rod drives the flexible ring to move. When the flexible ring moves to the end face of the fixing plate away from the main body, the locking rod is pressed again, so that the flexible ring enters the interior of the fixing plate under the squeezing action of the fixing plate, and the flexible ring deforms. This allows the locking rod to be locked under the squeezing action of the flexible ring, avoiding relative movement between the locking rod and the fixing plate, thereby increasing the stability of the locking rod.

[0020] Optionally, the locking rod has an annular groove, the flexible ring is located in the annular groove, and the flexible ring has a force-bearing area located outside the annular groove.

[0021] By adopting the above technical solution, since the locking rod has an annular groove and the flexible ring is located in the annular groove, the flexible ring moves with the locking rod under the action of the groove wall, so as to avoid the flexible ring and the locking rod from sliding relative to each other. This ensures that when the locking rod is driven from the avoidance position to the locking position, the flexible ring can enter the fixing plate, thereby further increasing the stability of the locking rod.

[0022] Optionally, the locking part is a threaded rod threadedly connected to the fixing plate. When the threaded rod is in the locking position, the end of the threaded rod away from the body is flush with the end face of the fixing plate away from the body and the threaded rod abuts against the snap-fit ​​part. When the threaded rod is in the clearance position, the end of the threaded rod away from the body is located outside the fixing plate and the threaded rod is separated from the snap-fit ​​part.

[0023] By adopting the above technical solution, after the fixing plate is installed onto the main body, the threaded rod is rotated to cause relative rotation between the threaded rod and the fixing plate. Simultaneously, the threaded rod moves along its own axial direction, moving from a clearance position to a locking position, where it abuts against the snap-fit ​​part. This prevents deformation of the snap-fit ​​part from affecting the connection stability between the fixing plate and the main body. Furthermore, when the threaded rod is in the locking position, the end of the threaded rod facing away from the main body is flush with the end face of the fixing plate facing away from the main body, increasing the aesthetics of the pre-drilled external wall insulation structure. Additionally, the threaded connection between the threaded rod and the fixing plate also increases the connection stability.

[0024] Optionally, an operating groove is provided at the end of the threaded rod away from the body, and the cross-section of the operating groove is polygonal.

[0025] By adopting the above technical solution, when rotating the screw, the tool that matches the cross-sectional shape of the operating groove is first inserted into the operating groove, and then the tool is rotated so that the tool drives the threaded rod to rotate, thereby causing the threaded rod to rotate relative to the fixed plate, and then the threaded rod moves to the locking position, so as to facilitate the rotation of the threaded rod.

[0026] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0027] 1. The pre-drilled external wall insulation structure of this application includes an insulation board and a connector disposed at the end of the insulation board. The connector includes a body disposed on the external wall and a fixing plate. The body has a receiving cavity for accommodating an expansion tube and a snap-fit ​​interface communicating with the receiving cavity and having an opening facing away from the external wall. The fixing plate has a snap-fit ​​portion that mates with the snap-fit ​​interface. The fixing plate extends toward the side of the insulation board facing away from the external wall to apply a compressive force toward the external wall to the fixing plate. This allows for the pre-drilling of holes in the external wall during the installation of the insulation structure of this application, preventing powder generated from the drilling from entering between the insulation board and the external wall and affecting the bonding effect between the insulation board and the external wall. This ensures the bonding stability between the insulation board and the external wall and avoids the situation where the insulation board vibrates due to drilling holes, which would affect the bonding effect between the insulation board and the external wall. This further increases the connection stability between the insulation board and the external wall. In addition, compared with insulation nails, the fixing plate increases the connection area with the insulation board, further increasing the stability of the insulation board.

[0028] 2. In this application, there are snap-fit ​​blocks on both sides opposite the snap-fit ​​interface. There are two snap-fit ​​blocks corresponding to the snap-fit ​​part, and the two snap-fit ​​parts are spaced apart to form a deformation space between them. This allows the fixing piece to be pressed during installation, thereby reducing the installation difficulty of the fixing piece and improving the installation efficiency of the pre-drilled external wall insulation structure.

[0029] 3. The snap-fit ​​block in this application has a guide surface that guides and engages with the snap-fit ​​part and a snap-fit ​​surface that engages with the snap-fit ​​block. The distance between the two guide surfaces gradually decreases along the direction closer to the outer wall, thereby increasing the opening width of the snap-fit ​​interface, so that the snap-fit ​​part can more easily engage with the snap-fit ​​interface, thereby reducing the difficulty of installing the fixing piece. At the same time, when the fixing piece is pressed, the snap-fit ​​part applies pressure to the guide surface, so that the snap-fit ​​block deforms under the action of the guide surface, so that the snap-fit ​​part can more easily pass over the snap-fit ​​block and engage with the snap-fit ​​block. Attached Figure Description

[0030] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0031] Figure 1 This is a schematic diagram of the pre-perforated external wall insulation structure according to one embodiment of this application;

[0032] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0033] Figure 3 This is a schematic diagram of the structure of the body described in one embodiment of this application;

[0034] Figure 4 This is a schematic diagram of the structure of the fixing piece according to one embodiment of this application;

[0035] Figure 5 This is a schematic diagram of the structure of the connector according to one embodiment of this application;

[0036] Figure 6 for Figure 5 Enlarged view of part B in the middle.

[0037] Figure label:

[0038] 1. Insulation board; 2. Connector; 21. Body; 211. Receiving cavity; 212. Snap-fit ​​block; 213. Guide surface; 214. Snap-fit ​​surface; 22. Fixing piece; 221. Snap-fit ​​part; 222. Mating surface; 3. Locking part; 31. Flexible ring. Detailed Implementation

[0039] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0040] Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below. It should be noted that, unless otherwise specified, the embodiments of this application and the features thereof can be combined with each other.

[0041] Furthermore, it should be understood in the description of this application that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0042] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0043] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0044] Reference Figures 1 to 6 A pre-drilled external wall insulation structure is disclosed, including an insulation board 1 and a connector 2 disposed at the end of the insulation board 1. The connector 2 includes a body 21 disposed on the external wall and a fixing plate 22. The body 21 has a receiving cavity 211 for accommodating an expansion tube and a snap-fit ​​interface that communicates with the receiving cavity 211 and has an opening facing away from the external wall. The fixing plate 22 has a snap-fit ​​portion 221 that engages with the snap-fit ​​interface. The fixing plate 22 extends toward the side of the insulation board 1 facing away from the external wall to apply a compressive force toward the external wall to the insulation board 1.

[0045] When installing the pre-drilled external wall insulation structure of this application, holes are first drilled in the external wall, and then expansion tubes are used to fix the main body 21. That is, the expansion tubes are inserted into the receiving cavity 211 through the snap-fit ​​interface, and finally the nail head of the expansion tube is pressed against the cavity wall of the receiving cavity 211 to realize the installation of the main body 21. Then, glue is applied to the external wall, and the insulation board 1 is installed on the side of the main body 21 so that the insulation board 1 is bonded to the external wall by glue. Then, the fixing piece 22 is installed so that the snap-fit ​​part 221 snaps into the snap-fit ​​interface. At this time, the fixing piece 22 applies a squeezing force to the insulation board 1 towards the external wall, thereby completing the installation of the insulation structure.

[0046] In summary, by first drilling holes in the exterior wall during the installation of the insulation structure in this application, the powder generated from the drilling is prevented from entering the space between the insulation board 1 and the exterior wall, thus affecting the bonding effect between the insulation board 1 and the exterior wall. This ensures the bonding stability between the insulation board 1 and the exterior wall. At the same time, it avoids the situation where the insulation board 1 vibrates due to drilling holes, which would affect the bonding effect between the insulation board 1 and the exterior wall. This further increases the connection stability between the insulation board 1 and the exterior wall. In addition, compared with insulation nails, the fixing piece 22 increases the connection area with the insulation board 1, thereby further increasing the stability of the insulation board 1.

[0047] It should be noted that when installing the pre-drilled external wall insulation structure in this application, connectors 2 need to be installed on both sides of the insulation board 1, and two adjacent insulation boards 1 can share one connector 2.

[0048] This application does not specifically limit the structure of the card-connecting part 221; preferably, refer to... Figure 1 , Figure 2 , Figure 4 and Figure 5 The snap-fit ​​portion 221 is a sheet-like structure with an L-shaped cross-section to increase the snap-fit ​​area between the fixing piece 22 and the body 21, thereby further increasing the connection stability between the fixing piece 22 and the body 21. In other embodiments, the snap-fit ​​portion 221 may also be a block-like structure with protrusions on the side.

[0049] This application does not specify the card-connecting method between the card connector 221 and the card interface. Preferably, refer to Figure 1 , Figure 2 and Figure 6 Card connectors 212 are provided on both sides of the card interface. There are two card connectors 221 corresponding to the card connectors 212, and the two card connectors 221 are spaced apart to form a deformation space between them.

[0050] Specifically, the snap-fit ​​block 212 extends along the length of the body 21. When installing the fixing piece 22, first align the snap-fit ​​part 221 with the snap-fit ​​interface, and then press the fixing piece 22 towards the body 21 so that the snap-fit ​​part 221 abuts against the snap-fit ​​block 212. At the same time, the snap-fit ​​part 221 deforms under the pressure, which gradually reduces the distance between the two snap-fit ​​parts 221, allowing the snap-fit ​​part 221 to pass over the snap-fit ​​block 212. Then, the snap-fit ​​part 221 returns to its original shape and snaps into the snap-fit ​​block 212, thus completing the installation of the fixing piece 22. This process only requires pressing the fixing piece 22, thereby reducing the difficulty of installing the fixing piece 22 and improving the installation efficiency of the pre-drilled external wall insulation structure.

[0051] Furthermore, refer to Figure 3 and Figure 6 The snap-fit ​​block 212 has a guide surface 213 that guides and engages with the snap-fit ​​part 221 and a snap-fit ​​surface 214 that engages with the snap-fit ​​block 212. The distance between the two guide surfaces 213 gradually decreases along the direction closer to the outer wall, thereby increasing the opening width of the snap-fit ​​interface, so that the snap-fit ​​part 221 can more easily engage with the snap-fit ​​interface, thereby reducing the difficulty of installing the fixing piece 22. At the same time, when the fixing piece 22 is pressed, the snap-fit ​​part 221 applies pressure to the guide surface 213, so that the snap-fit ​​block 212 deforms under the action of the guide surface 213, so that the snap-fit ​​part 221 can more easily pass over the snap-fit ​​block 212 and engage with the snap-fit ​​block 212.

[0052] Furthermore, refer to Figure 4 and Figure 6 Each of the two snap-fit ​​parts 221 has a mating surface 222 on the opposite side of each other, which is guided and engaged with the guide surface 213. The distance between the two mating surfaces 222 gradually decreases along the direction closer to the outer wall, thereby making the distance between the opposite sides of the two snap-fit ​​parts 221 gradually decrease along the direction closer to the body 21. This further reduces the difficulty of the snap-fit ​​parts 221 entering the snap-fit ​​interface. At the same time, when the fixing piece 22 is installed, the mating surface 222 abuts against the guide surface 213, so that the cooperation between the two guides the deformation of the snap-fit ​​parts 221, thereby further reducing the snap-fit ​​difficulty between the snap-fit ​​parts 221 and the snap-fit ​​block 212, and further improving the assembly efficiency of the fixing piece 22.

[0053] In other embodiments, card slots are provided on both sides opposite to the card interface, and the card slot 221 is engaged in the card slot to achieve the engagement of the fixing piece 22 and the body 21.

[0054] In a preferred embodiment, refer to Figure 2 , Figure 4 and Figure 6The fixing piece 22 is provided with a locking part 3, which is movably connected to the fixing piece 22 so that the locking part 3 has a locking position that abuts against the latching part 221 and a clearance position that is separated from the latching part 221.

[0055] The better one is to refer to Figure 2 , Figure 4 and Figure 6 When the locking part 3 is in the locked position, the locking part 3 is located between the two latching parts 221, thereby causing the locking part 3 to stop and cooperate with the latching parts 221 so that the two latching parts 221 cannot move toward each other, thereby increasing the connection stability between the latching parts 221 and the latching block 212.

[0056] Specifically, after the fixing piece 22 is installed onto the body 21, the locking part 3 is operated to move from the avoidance position to the locking position, thereby causing the locking part 3 to abut against the latching part 221, so that the locking part 3 and the latching part 221 stop and cooperate, thereby limiting the deformation of the latching part 221, so as to avoid the fixing piece 22 from separating from the body 21 due to the deformation of the latching part 221, thereby increasing the connection stability between the fixing piece 22 and the body 21, and further increasing the fixing effect on the insulation board 1.

[0057] This application does not specify the number of locking parts 3; preferably, refer to... Figure 4 and Figure 5 Multiple locking parts 3 are provided along the length of the fixing piece 22 to increase the number of limiting points of the locking parts 3 on the locking parts 221, thereby further increasing the locking stability between the fixing piece 22 and the body 21.

[0058] This application does not specifically limit the structure of the locking part 3, which can adopt any of the following embodiments:

[0059] Example 1, in this example, refers to Figure 2 The locking part 3 is a locking rod that is slidably connected to the fixing plate 22. When the locking rod is in the locking position, the end of the locking rod away from the main body 21 is flush with the end face of the fixing plate 22 away from the main body 21 and the locking rod abuts against the snap-fit ​​part 221. When the locking rod is in the avoidance position, the end of the locking rod away from the main body 21 is located outside the fixing plate 22 and the locking rod is separated from the snap-fit ​​part 221.

[0060] Specifically, the fixing plate 22 is provided with a through hole for the locking rod to pass through, and the locking rod is slidably connected to the through hole. After the fixing plate 22 is installed onto the body 21, the locking rod is pressed towards the body 21 to make the locking rod slide relative to the fixing plate 22, thereby moving the locking rod from the avoidance position towards the locking position. When the end of the locking rod away from the body 21 is flush with the end face of the fixing plate 22 away from the body 21, the pressing of the locking rod is stopped. At this time, the locking rod is in the locking position to avoid the fixing plate 22 from separating from the body 21 due to deformation of the locking part 221. During the operation of the locking part 3, only the locking part 3 needs to be pressed, which reduces the difficulty of operating the locking part 3 and thus improves the locking efficiency of the fixing plate 22. At the same time, since the end of the locking rod away from the body 21 is flush with the end face of the fixing plate 22 away from the body 21 when the locking rod is in the locking position, the aesthetics of the insulation structure are increased.

[0061] Furthermore, refer to Figure 2 A flexible ring 31 is provided at the end of the locking rod away from the body 21. When the locking rod is in the locked position, the flexible ring 31 is located inside the fixing piece 22 so that the flexible ring 31 deforms to fix the locking rod.

[0062] When the locking rod is pressed, it drives the flexible ring 31 to move. When the flexible ring 31 moves to the end face of the fixing plate 22 away from the body 21, the locking rod is pressed again, so that the flexible ring 31 enters the interior of the fixing plate 22 under the squeezing action of the fixing plate 22, and the flexible ring 31 deforms. This allows the locking rod to be locked under the squeezing action of the flexible ring 31, preventing relative movement between the locking rod and the fixing plate 22, thereby increasing the stability of the locking rod.

[0063] This application does not specifically limit the material of the flexible ring 31. Preferably, the flexible ring 31 is made of rubber or silicone to give it the ability to elastically deform, thereby increasing the force required to press the locking rod to the locked position while ensuring the stability of the connection between the locking rod and the fixing rod. In other embodiments, the flexible ring 31 can also be made of other materials with elastic deformation capabilities.

[0064] Furthermore, refer to Figure 2 The locking rod has an annular groove, and the flexible ring 31 is located in the annular groove. The flexible ring 31 has a force-bearing area located outside the annular groove, so that the flexible ring 31 moves with the locking rod under the action of the groove wall, so as to avoid the flexible ring 31 sliding relative to the locking rod. This ensures that when the locking rod is driven from the avoidance position to the locking position, the flexible ring 31 can enter the fixing plate 22 to further increase the stability of the locking rod.

[0065] The better one is to refer to Figure 2 When the locking rod is in the locked position, the through hole of the fixing plate 22 is also provided with an annular groove at the position of the flexible ring 31, so that when the locking rod is in the locked position, the stress area of ​​the flexible ring 31 is located in the annular groove of the through hole wall, thereby increasing the stability of the locking rod when it is in the locked position.

[0066] In Example 2, the locking part 3 is a threaded rod that is threaded to the fixing plate 22. When the threaded rod is in the locking position, the end of the threaded rod away from the body 21 is flush with the end face of the fixing plate 22 away from the body 21 and the threaded rod abuts against the snap-fit ​​part 221. When the threaded rod is in the avoidance position, the end of the threaded rod away from the body 21 is located outside the fixing plate 22 and the threaded rod is separated from the snap-fit ​​part 221.

[0067] Specifically, the fixing plate 22 is provided with a threaded hole, and the threaded rod is threadedly connected to the threaded hole.

[0068] After the fixing plate 22 is installed onto the body 21, the threaded rod is rotated to cause relative rotation between the threaded rod and the fixing plate 22. Simultaneously, the threaded rod moves along its own axial direction, moving from a clearance position to a locking position, whereby it abuts against the snap-fit ​​part 221. This prevents deformation of the snap-fit ​​part 221 from affecting the connection stability between the fixing plate 22 and the body 21. Furthermore, when the threaded rod is in the locking position, the end of the threaded rod facing away from the body 21 is flush with the end face of the fixing plate 22 facing away from the body 21, enhancing the aesthetics of the pre-drilled external wall insulation structure. Additionally, the threaded connection between the threaded rod and the fixing plate 22 also increases the connection stability.

[0069] Furthermore, an operating groove is provided at the end of the threaded rod away from the body 21. The cross-section of the operating groove is polygonal. When the threaded rod is rotated, a tool that matches the cross-sectional shape of the operating groove is first inserted into the operating groove, and then the tool is rotated so that the tool drives the threaded rod to rotate. This causes the threaded rod to rotate relative to the fixed plate 22, thereby moving the threaded rod to the locking position, so as to facilitate the rotation of the threaded rod.

[0070] Preferably, the cross-sectional shape of the operating groove is a regular hexagon, so that the operator can use an Allen wrench to rotate the threaded rod, thus avoiding the need to design a separate tool for the threaded rod.

[0071] In a preferred embodiment, the end of the insulation board 1 is provided with a clearance notch corresponding to the fixing piece 22, so that after the fixing piece 22 is snapped together with the body 21, the fixing piece 22 is located in the clearance notch, thereby making the end face of the fixing piece 22 away from the body 21 flush with the end face of the insulation board 1 away from the outer wall.

[0072] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0073] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0074] The above description is merely an embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims of this application.

Claims

1. A pre-opening type exterior wall insulation structure, characterized in that: The invention comprises a heat preservation board (1) and a connecting piece (2) arranged at the end of the heat preservation board (1), wherein the connecting piece (2) comprises a main body (21) arranged on the external wall and a fixing plate (22), wherein the main body (21) comprises a receiving cavity (211) for receiving an expansion tube and a card interface which is connected to the receiving cavity (211) and has an opening facing away from the external wall, and the fixing plate (22) comprises a card connection portion (221) which is card-engaged with the card interface, and the fixing plate (22) is extended toward a side of the heat preservation board (1) facing away from the external wall so as to apply a squeezing force on the heat preservation board (1) in the direction of the external wall.

2. A pre-opening type exterior wall insulation structure according to claim 1, characterized in that: The card interface is provided with a clamping block (212) on both opposite sides, two clamping portions (221) are provided corresponding to the clamping blocks (212), and the two clamping portions (221) are arranged at intervals to form a deformation space therebetween.

3. The pre-opening type exterior wall insulation structure according to claim 2, characterized in that: The clamping block (212) comprises a guide surface (213) for guiding and matching with the clamping portion (221) and a clamping surface (214) for clamping and matching with the clamping block (212), and the distance between the two guide surfaces (213) gradually decreases in a direction approaching the outer wall.

4. The pre-opening type exterior wall insulation structure according to claim 3, characterized in that: The two sides of the two clamping portions (221) facing away from each other both have a matching surface (222) that matches with the guide surface (213) for guidance, and the distance between the two matching surfaces (222) gradually decreases in the direction approaching the outer wall.

5. The pre-opening type exterior wall insulation structure according to claim 1, characterized in that: The fixing plate (22) is provided with a locking portion (3), and the locking portion (3) is movably connected to the fixing plate (22), so that the locking portion (3) has a locking position that contacts the clamping portion (221) and an escape position that is separated from the clamping portion (221).

6. The pre-opening type exterior wall insulation structure according to claim 5, characterized in that: The locking portion (3) is a locking rod slidably connected to the fixing plate (22); when the locking rod is in a locking position, one end of the locking rod facing away from the body (21) is flush with the end surface of the fixing plate (22) facing away from the body (21) and the locking rod abuts against the clamping portion (221); when the locking rod is in an avoidance position, one end of the locking rod facing away from the body (21) is located outside the fixing plate (22) and the locking rod is separated from the clamping portion (221).

7. The pre-opening type exterior wall insulation structure according to claim 6, characterized in that: A flexible ring (31) is provided at one end of the locking rod away from the body (21); when the locking rod is in the locking position, the flexible ring (31) is located inside the fixing plate (22), so that the flexible ring (31) is deformed to fix the locking rod.

8. The pre-opening type exterior wall insulation structure according to claim 7, characterized in that: The locking rod has an annular groove, the flexible ring (31) is located in the annular groove, and the flexible ring (31) has a force-bearing area located outside the annular groove.

9. The pre-opening type exterior wall insulation structure according to claim 5, characterized in that: The locking portion (3) is a threaded rod threadedly connected to the fixing plate (22); when the threaded rod is in a locking position, one end of the threaded rod facing away from the body (21) is flush with the end surface of the fixing plate (22) facing away from the body (21) and the threaded rod abuts against the clamping portion (221); when the threaded rod is in an avoidance position, one end of the threaded rod facing away from the body (21) is located outside the fixing plate (22) and the threaded rod is separated from the clamping portion (221).

10. The pre-opening type exterior wall insulation structure according to claim 9, characterized in that: An operating groove is provided at one end of the threaded rod away from the body (21), and the cross section of the operating groove is polygonal.

Images