A building insulation board connecting and fixing device
By improving the locking structure of the screw shell and the positioning block and the mechanical clamping method of the second fixing component, the problem of easy loosening of the connection between galvanized welded wire mesh and insulation board was solved, achieving stable connection and maintaining insulation performance, and improving the durability of building insulation layer and overall insulation effect.
Patent Information
- Application Number
- CN202521628995.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-01
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-01
AI Technical Summary
In existing technologies, the connection between galvanized welded wire mesh and insulation board is prone to loosening, leading to the detachment of the insulation layer. Furthermore, traditional screw fixing methods cannot provide sufficient pull-out resistance, resulting in low operational reliability.
The fixing method adopts the cooperation of screw shell and positioning block. The galvanized welded wire mesh is fixed by unfolding the locking block to form a barbed structure. Combined with the mechanical clamping of the second fixing component, the number of holes to be drilled in the insulation board is reduced and the connection stability is enhanced.
It improves the connection stability between galvanized welded wire mesh and insulation board, reduces damage to insulation board, maintains the integrity of insulation performance, reduces the generation of thermal bridge effect, and improves the overall insulation effect and structural durability.
Smart Images

Figure CN224678897U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of insulation board connection technology, and in particular to a building insulation board connection and fixing device. Background Technology
[0002] Building insulation boards are thermal insulation materials used in building exterior walls, roofs, and other components. They primarily improve energy efficiency by slowing down heat conduction. In building construction, ineffective installation of insulation boards is a major cause of ceiling insulation layer detachment. Currently, the method for reinforcing ceiling insulation boards involves screwing self-tapping screws through the insulation board into the base layer, then pressing the screws onto galvanized welded wire mesh to create a mechanical connection between the mesh and the insulation board, thus achieving overall fixation of the insulation system. However, using traditional screws makes it difficult to provide sufficient pull-out resistance, resulting in low operational reliability.
[0003] As shown in the reference case "A Fixing and Connection Mechanism for Insulation Boards of a New Building Material" (Announcement No. CN223017885U), this utility model utilizes the cooperation of a wall, a fixing mechanism, an insulation board body, a wall-fixing plate, a fixing plate, screws, an expansion limiter, long threaded nails, a corner limiter, and fixing screws. The wall provides support for the fixing mechanism, the insulation board body provides insulation for the wall, and the cooperation of the wall-fixing plate and the fixing plate effectively fixes the insulation board body. Although the above application can fix the insulation board body to the wall by setting a fixing mechanism, the device cannot stably fix the galvanized welded wire mesh to the insulation board body. Utility Model Content
[0004] Therefore, it is necessary to provide a building insulation board connection and fixing device to address the problem of easy loosening of the connection between galvanized welded wire mesh and the insulation board body.
[0005] A building insulation board connection and fixing device includes: an insulation board body installed on the surface of a wall and a galvanized welded wire mesh disposed inside the insulation board body. The fixing mechanism includes a first fixing component disposed on the surface of the galvanized welded wire mesh and a second fixing component disposed between the wall and the insulation board body.
[0006] In one embodiment, as a further improvement to the above technical solution: In one embodiment, the first fixing component includes a screw housing that is inserted into the body of the insulation board, the interior of the screw housing being hollow.
[0007] In one embodiment, a first threaded rod is provided inside the screw housing, and one end of the first threaded rod is provided outside the screw housing and has a knob.
[0008] In one embodiment, a positioning block is fixedly connected to one end of the screw housing inside the insulation board body. The positioning block is tubular and has multiple locking blocks inside. The multiple locking blocks are evenly distributed circumferentially and are slidably connected to the inner bottom wall of the positioning block.
[0009] In one embodiment, a drive block is rotatably connected to the end of the first threaded rod away from the knob. The drive block is conical, and its surface is provided with multiple grooves. The inner sides of the multiple locking blocks respectively abut against the grooves.
[0010] In one embodiment, the second fixing component includes a mounting block mounted on a wall, the mounting block having an "L"-shaped cross-section, and two sliders and a threaded block disposed between the two sliders fixedly connected to the surface of the mounting block.
[0011] In one embodiment, a limiting block is provided on the surface of the mounting block. The limiting block has an "L" shaped cross-section, and two fixing rods are fixedly connected to the inner wall of the limiting block. The two sliders are slidably connected to the two fixing rods respectively.
[0012] In one embodiment, a second threaded rod is provided inside the limiting block, the threaded block is disposed on the surface of the second threaded rod, one end of the second threaded rod is rotatably connected to the inner wall of the limiting block, and the other end extends through the limiting block.
[0013] Beneficial effects 1. By setting a positioning block and a retractable locking block at the end of the screw shell, the locking block unfolds and forms a barb structure after the screw shell is inserted into the insulation board body, thereby firmly fixing the galvanized welded wire mesh to the insulation board body, improving the stability and pull-out resistance of the structure, and ensuring the long-term effective connection between the insulation layer and the wall. 2. By setting a second fixing component, the insulation board can be fixed in a way that accommodates insulation boards of different thicknesses while reducing the number of holes drilled inside the insulation board. This reduces damage to the insulation board itself, maintains the integrity of the insulation performance, and reduces the generation of thermal bridges, effectively improving the overall insulation effect and the durability of the structure. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the insulation board body of this utility model; Figure 3 This is a schematic diagram of the connection of the second fixing component of this utility model; Figure 4 This is a schematic diagram of the overall structure of the first fixing component of this utility model; Figure 5 This is an exploded view of the first fixing component of this utility model.
[0016] Figure label: 100. Insulation board body; 110. Galvanized welded wire mesh; 200. Fixing mechanism; 210. First fixing component; 211. Screw housing; 212. First threaded rod; 2121. Drive block; 213. Positioning block; 2131. Locking block; 220. Second fixing component; 221. Mounting block; 2211. Slider; 2212. Threaded block; 222. Limiting block; 2221. Fixing rod; 2222. Second threaded rod. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0018] The following is combined Figures 1-5 This utility model describes a building insulation board connection and fixing device.
[0019] In one embodiment, a building insulation board connection and fixing device includes: an insulation board body 100 installed on the surface of a wall and a galvanized welded wire mesh 110 disposed inside the insulation board body 100. The fixing mechanism 200 includes a first fixing component 210 disposed on the surface of the galvanized welded wire mesh 110 and a second fixing component 220 disposed between the wall and the insulation board body 100.
[0020] In this device, the insulation board body 100 includes an insulation layer that adheres to the wall, and a galvanized welded wire mesh 110 disposed on the surface of the insulation board layer. The surface of the galvanized welded wire mesh 110 needs to be leveled by applying a certain thickness of insulation mortar. After leveling, a fiberglass mesh needs to be attached to its surface. At the same time, a certain thickness of crack-resistant mortar needs to be laid on the mesh surface to improve the overall crack resistance of the insulation board. Finally, the entire device is finished. When laying the insulation layer, foam adhesive needs to be filled between multiple insulation layers for joint sealing. The insulation board body 100 of this device is an EPS type insulation board.
[0021] like Figure 2 , Figure 4 and Figure 5 As shown, the first fixing component 210 includes a screw housing 211 inserted into the insulation board body 100, and the interior of the screw housing 211 is hollow. A first threaded rod 212 is provided inside the screw housing 211, and one end of the first threaded rod 212 is located outside the screw housing 211 and has a knob. A positioning block 213 is fixedly connected to one end of the screw housing 211 inside the insulation board body 100. The positioning block 213 is tubular, and multiple locking blocks 2131 are provided inside the positioning block 213. The multiple locking blocks 2131 are evenly distributed circumferentially and are slidably connected to the inner bottom wall of the positioning block 213. A driving block 2121 is rotatably connected to the end of the first threaded rod 212 away from the knob. The driving block 2121 is conical, and its surface has multiple grooves. The inner sides of the multiple locking blocks 2131 respectively abut against the grooves.
[0022] In this embodiment, the insulation layer of the insulation board needs to be pre-drilled with threaded holes that mate with the screw housing 211. After the screw housing 211 is inserted into the corresponding threaded hole, the pressure applied by the screw housing 211 applies pressure to the galvanized welded wire mesh 110, causing the galvanized welded wire mesh 110 to adhere to the insulation layer. Once the screw housing 211 is installed, the first threaded rod 212 can be rotated. At this time, the driving block 2121 contacts the surface of the locking block 2131. The corner of the locking block 2131 that contacts the driving block 2121 is set with an arc. After rotating the first threaded rod 212, the driving block 2121 moves, and the locking block 2131 moves along the surface of the driving block 2121. As the groove moves, the other end of the locking block 2131 slides along the inner bottom wall of the positioning block 213. The surface of the positioning block 213 has a corresponding strip opening. The locking block 2131 extends out from the corresponding strip opening and gradually inserts into the insulation layer. When the first threaded rod 212 is rotated, the first threaded rod 212 will rotate and move inward along the inner wall of the screw housing 211. At this time, since the first threaded rod 212 and the driving block 2121 are rotatably connected, and the slot of the driving block 2121 is correspondingly set with the locking block 2131, the rotation of the first threaded rod 212 will not affect the normal movement of the driving block 2121. It should be noted that this device increases the connection stability between the galvanized welded wire mesh 110 and the insulation layer by improving the connection method between the screw and the insulation board. At the same time, the damage caused by the insertion of the locking block 2131 into the insulation layer will not affect the overall insulation effect of the insulation layer. In addition, the second fixing component 220 improves the original screw insertion method into a mechanical clamping method to reduce damage to the surface of the insulation board. Similarly, it will not cause any damage to the internal structure of the insulation board body 100. In summary, the fixing mechanism 200 of this device will not affect the insulation effect of the insulation board.
[0023] like Figure 1 , Figure 2 and Figure 3 As shown, the second fixing component 220 includes a mounting block 221 installed on the wall. The mounting block 221 has an "L"-shaped cross-section. Two sliders 2211 and a threaded block 2212 disposed between the two sliders 2211 are fixedly connected to the surface of the mounting block 221. A limiting block 222 is provided on the surface of the mounting block 221. The limiting block 222 has an "L"-shaped cross-section. Two fixing rods 2221 are fixedly connected to the inner wall of the limiting block 222. The two sliders 2211 are slidably connected to the two fixing rods 2221 respectively. A second threaded rod 2222 is provided inside the limiting block 222. The threaded block 2212 is disposed on the surface of the second threaded rod 2222. One end of the second threaded rod 2222 is rotatably connected to the inner wall of the limiting block 222, while the other end extends through the limiting block 222.
[0024] In this embodiment, mounting holes are provided on the surface of mounting block 221. Mounting block 221 is installed on the wall using screws that engage with these holes. When the second threaded rod 2222 is rotated, the threaded block 2212 is fixed to the mounting block 221, and the mounting block 221 is fixed to the wall. Therefore, the threaded block 2212 is in a fixed state. When the second threaded rod 2222 is rotated, the second threaded rod 2222 will move relative to the threaded block 2212. Since the threaded block 2212 is in a fixed state, the second threaded rod 2222 will move relative to the threaded block 2212. The threaded block 2212 will drive the limiting block 222 to move along the threaded block 2212. At the same time, the second threaded rod 2222 and the two fixed rods 2221 are all fixed in the limiting groove opened in the inner wall of the limiting block 222. The slider 2211 and the threaded block 2212 are both set in the limiting groove. When the limiting block 222 moves, the fixed rod 2221 will cooperate with the slider 2211 to provide a limiting effect on the limiting block 222. At the same time, the threaded block 2212 will cooperate with the second threaded rod 2222 to provide the moving power.
[0025] Working principle: When installing galvanized welded wire mesh 110, first insert the galvanized welded wire mesh 110 and then insert the screw housing 211 into the pre-drilled threaded hole. Then rotate the first threaded rod 212. The first threaded rod 212 will drive the drive block 2121 to move along the inner wall of the screw housing 211 into the positioning block 213. During this process, multiple locking blocks 2131 will unfold outward along the drive block 2121 and insert into the interior of the insulation board, further increasing the fixing effect of the screw housing 211. After the galvanized welded wire mesh 110 is fixed, the insulation board body 100 needs to be placed on the wall. At this time, adhesive is first laid between the wall and the insulation board to fix the insulation board body 100 to the wall. Then, the second fixing component 220 applies mechanical clamping force to fix the insulation board to the wall. First, the mounting block 221 is installed on the wall with screws. Then, the knob of the second threaded rod 2222 is turned. The rotation of the second threaded rod 2222 will drive the limiting block 222 to move along the threaded block 2212. The limiting block 222 works with the wall to clamp the insulation board, reducing the need to drill holes in the insulation board and increasing the installation stability of the insulation board.
[0026] It should be noted that the galvanized welded wire mesh 110 and the insulation board body 100 mentioned above are both devices with relatively mature existing technology. The specific models can be selected according to actual needs, and will not be elaborated here.
[0027] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A connecting and fixing device for building insulation boards, characterized in that, include: The insulation board body (100) installed on the wall surface and the galvanized welded wire mesh (110) set inside the insulation board body (100). The fixing mechanism (200) includes a first fixing component (210) disposed on the surface of the galvanized welded wire mesh (110) and a second fixing component (220) disposed between the wall and the insulation board body (100). The first fixing component (210) includes a screw housing (211) that is inserted into the insulation board body (100), and the interior of the screw housing (211) is hollow.
2. The building insulation board connecting and fixing device according to claim 1, characterized in that, The screw housing (211) is provided with a first threaded rod (212) inside, and one end of the first threaded rod (212) is provided outside the screw housing (211) and is provided with a knob.
3. The building insulation board connection and fixing device according to claim 2, characterized in that, The screw housing (211) is fixedly connected to a positioning block (213) at one end inside the insulation board body (100). The positioning block (213) is tubular, and multiple locking blocks (2131) are provided inside the positioning block (213). The multiple locking blocks (2131) are evenly distributed around the circumference, and the locking blocks (2131) are slidably connected to the inner bottom wall of the positioning block (213).
4. The building insulation board connecting and fixing device according to claim 3, characterized in that, The first threaded rod (212) is rotatably connected to a drive block (2121) at the end away from the knob. The drive block (2121) is conical and has multiple grooves on its surface. The inner sides of the multiple locking blocks (2131) respectively abut against the grooves.
5. The building insulation board connection and fixing device according to claim 1, characterized in that, The second fixing component (220) includes a mounting block (221) installed on the wall. The mounting block (221) has an "L" shaped cross section. Two sliders (2211) and a threaded block (2212) disposed between the two sliders (2211) are fixedly connected to the surface of the mounting block (221).
6. The building insulation board connecting and fixing device according to claim 5, characterized in that, The surface of the mounting block (221) is provided with a limiting block (222), the cross-section of the limiting block (222) is "L" shaped, and the inner wall of the limiting block (222) is fixedly connected with two fixing rods (2221), and the two sliders (2211) are respectively slidably connected to the two fixing rods (2221).
7. The building insulation board connecting and fixing device according to claim 6, characterized in that, The limiting block (222) has a second threaded rod (2222) inside. The threaded block (2212) is disposed on the surface of the second threaded rod (2222). One end of the second threaded rod (2222) is rotatably connected to the inner wall of the limiting block (222), while the other end passes through the limiting block (222).
Citation Information
Patent Citations
Fixing and connecting mechanism for heat preservation plates made of new building materials
CN223017885U