XPS insulation board with good flame retardant property
By wrapping a flame-retardant layer around the outside of the XPS insulation board and designing rectangular grooves, slots, extension plates, and locking blocks, the problems of poor flame-retardant performance and inconvenient assembly of the XPS insulation board are solved, achieving all-round flame retardancy and convenient installation.
Patent Information
- Application Number
- CN202423003993.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-06
AI Technical Summary
Existing XPS insulation boards have poor flame retardant properties and are inconvenient to assemble, posing fire hazards and installation difficulties.
A flame-retardant layer is wrapped around the outside of the XPS insulation board, and rectangular grooves, slots, extension plates, and locking blocks are designed on the board to facilitate assembly and enhance flame-retardant performance.
It achieves all-round flame retardancy on the inner and outer surfaces of the insulation board, preventing the spread of fire, improving assembly convenience and installation stability, while also possessing good thermal insulation performance and compressive strength.
Smart Images

Figure CN223548751U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of XPS insulation board technology, and in particular to an XPS insulation board with good flame retardant properties. Background Technology
[0002] XPS insulation board, also known as extruded polystyrene insulation board, is a high-performance insulation material. The main raw material of XPS insulation board is polystyrene resin. By adding other raw materials and polymers and injecting catalysts, it is heated, mixed, and then extruded to form a rigid foam board. Although XPS insulation board performs well in terms of insulation and pressure resistance, its combustion performance does not meet the flame retardant standard. Therefore, fire safety should be taken into account when using it.
[0003] In the prior art, patent CN217053848U discloses a high-temperature resistant and flame-retardant composite XPS insulation board. This XPS insulation board features a quick-assembly and disassembly mechanism and a composite reinforcing structure, enabling convenient and rapid assembly of the insulation board. Positioning is simpler, and it is also detachable, offering superior performance and increased strength. It also provides fire resistance, sound insulation, and waterproofing, making it more practical.
[0004] However, the composite layer of this device is only applied to one side of the insulation board, providing fire protection only to that side. When the wall wiring experiences overload, short circuits, or leakage, the wiring can generate heat and ignite the insulation board, causing the fire to spread rapidly and potentially leading to a serious fire accident. Furthermore, the device is assembled using interlocking blocks, which require inserting the interlocking block from one insulation board into the side of another. Since insulation boards are typically installed one by one on the wall, requiring side insertion, and needing to be attached to the wall surface for proper handling, assembly becomes inconvenient. Therefore, a flame-retardant XPS insulation board is designed to address these issues. Utility Model Content
[0005] The purpose of this invention is to solve the problems existing in the above-mentioned background technology and to propose an XPS insulation board with good flame retardant properties.
[0006] The technical problem to be solved by this utility model is to provide an XPS insulation board with good flame retardant properties, thereby solving the problems of poor flame retardant properties and inconvenient assembly of the XPS insulation board body in the prior art.
[0007] This utility model provides an XPS insulation board with good flame retardant performance, including an insulation board body, the insulation board body including an XPS insulation layer and a flame retardant layer, and the flame retardant layer is wrapped around the outside of the XPS insulation layer.
[0008] The insulation board body also includes a rectangular groove, a slot, an extension plate, and a locking block. The rectangular groove is opened on the inner side of the upper surface of the insulation board body. Multiple slots are opened at the bottom of the rectangular groove. An extension plate is integrally formed on the upper part of the outer end of the insulation board body. Multiple locking blocks are integrally formed on the bottom of the extension plate, and the locking blocks are connected to the outer end of the insulation board body.
[0009] Preferably, the flame-retardant layer is made of rock wool.
[0010] Preferably, the rectangular groove matches the extension plate, and the extension plate on one insulation board body can be embedded in the rectangular groove on another insulation board body.
[0011] Preferably, when an extension plate on one of the insulation board bodies is embedded in a rectangular groove on another insulation board body, the locking block engages with the groove.
[0012] Preferably, the inner end opening of the slot is rectangular, and the other end of the slot is cylindrical, with the width of the rectangular inner end being smaller than the diameter of the cylindrical end.
[0013] Preferably, the shape of the card block is the same as the shape of the card slot.
[0014] Compared with the prior art, this utility model has at least the following beneficial effects:
[0015] 1. This utility model incorporates an XPS insulation layer and a flame-retardant layer. The outer surface of the insulation layer is wrapped with a flame-retardant layer, which provides flame retardancy to both the inner and outer surfaces of the insulation board body. This prevents fires caused by short circuits in the wall wiring from igniting the XPS insulation layer, thus preventing the fire from spreading and causing serious fire accidents.
[0016] 2. This utility model incorporates an XPS insulation layer and a flame-retardant layer. The XPS insulation layer has a low thermal conductivity, effectively reducing heat transfer and achieving excellent insulation. Its closed-cell structure ensures that heat transfer is primarily through radiation rather than convection, further enhancing insulation performance. It also boasts high compressive strength. Due to its closed-cell structure, the XPS insulation layer exhibits high compressive strength, making it suitable for applications requiring high pressure resistance. The compressive strength can reach 150-500 kPa, depending on the model and thickness. The flame-retardant layer is made of rock wool, which possesses various properties including lightweight, low thermal conductivity, heat absorption, and non-combustibility. It is a new type of insulation, fire-retardant, and sound-absorbing material widely used in construction, industry, agriculture, and shipbuilding. In construction, rock wool boards are commonly used for insulation and decoration, possessing a fire rating of A1, effectively preventing the spread of fire and producing no smoke or harmful substances during a fire. It also offers excellent thermal insulation and sound absorption / noise reduction effects.
[0017] 3. This utility model, by providing a rectangular groove, a slot, an extension plate, and a locking block, allows for easy assembly of two insulation board bodies. The extension plate and locking block on one insulation board body are aligned with the rectangular groove and slot on the other insulation board body and pressed into place. This eliminates the need to assemble one insulation board body from the side of the other, increasing assembly convenience. After assembly, the locking block on one insulation board body engages with the slot on the other, preventing the two insulation board bodies from being pulled apart from the side. The extension plate, embedded in the rectangular groove, blocks the engagement point between the locking block and the slot, reducing the gap at the connection point of the two insulation board bodies. Furthermore, the extension plate blocks and limits the connection of the insulation board bodies, preventing a single insulation board body from detaching from the wall and ensuring installation stability. Attached Figure Description
[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.
[0019] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model.
[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the insulation board body of this utility model.
[0021] Figure 3 This is a bottom view of the overall structure of this utility model.
[0022] Figure 4 This is a schematic diagram of the assembly structure of the two insulation boards of this utility model.
[0023] [Figure Labels]
[0024] 1. Insulation board body; 101. Rectangular groove; 102. Card slot; 103. Extension plate; 104. Card block; 2. Insulation layer; 3. Flame retardant layer. Detailed Implementation
[0025] Example:
[0026] like Figures 1-4 As shown, an embodiment of this utility model provides an XPS insulation board with good flame retardant performance, including an insulation board body 1, the insulation board body 1 including an XPS insulation layer 2 and a flame retardant layer 3, and the flame retardant layer 3 is wrapped around the outside of the XPS insulation layer 2.
[0027] The insulation board body 1 also includes a rectangular groove 101, a slot 102, an extension plate 103, and a locking block 104. The rectangular groove 101 is formed on the inner side of the upper surface of the insulation board body 1. Multiple slots 102 are formed at the bottom of the rectangular groove 101. An extension plate 103 is integrally formed on the upper part of the outer end of the insulation board body 1. Multiple locking blocks 104 are integrally formed at the bottom of the extension plate 103, and the locking blocks 104 are connected to the outer end of the insulation board body 1.
[0028] By setting up an XPS insulation layer 2 and a flame-retardant layer 3, the outer surface of the insulation layer 2 is wrapped with a flame-retardant layer 3, which achieves flame retardancy on both the inner and outer surfaces of the insulation board body 1, preventing the XPS insulation layer 2 from being ignited by fires caused by short circuits in the wall wiring, and preventing the fire from spreading and causing serious fire accidents.
[0029] In this embodiment, the flame-retardant layer 3 is made of rock wool.
[0030] By incorporating XPS insulation layer 2 and flame-retardant layer 3, the XPS insulation layer, with its low thermal conductivity, effectively reduces heat transfer, achieving excellent insulation performance. Its closed-cell structure ensures heat transfer primarily occurs through radiation rather than convection, further enhancing insulation performance. It also boasts high compressive strength, making it suitable for applications requiring high pressure resistance. The compressive strength ranges from 150-500 kPa, depending on the model and thickness. Flame-retardant layer 3 is made of rock wool, which possesses various properties including lightweight, low thermal conductivity, heat absorption, and non-combustibility. It is a new type of insulation, fire-retardant, and sound-absorbing material widely used in construction, industry, agriculture, and shipbuilding. In construction, rock wool boards are commonly used for insulation and decoration, possessing a fire rating of A1, effectively preventing the spread of fire and producing no smoke or harmful substances during a fire. It also offers excellent thermal insulation and sound absorption / noise reduction effects.
[0031] In this embodiment, the rectangular groove 101 matches the extension plate 103, and the extension plate 103 on one insulation board body 1 can be embedded in the rectangular groove 101 on another insulation board body 1.
[0032] In this embodiment, when the extension plate 103 on one insulation board body 1 is embedded in the rectangular groove 101 on another insulation board body 1, the locking block 104 is engaged in the slot 102 to realize the assembly of the two insulation board bodies 1.
[0033] In this embodiment, the inner end opening of the slot 102 is rectangular, and the other end of the slot 102 is cylindrical. The width of the rectangular inner end of the slot 102 is smaller than the diameter of the cylindrical end, so that when the card block 104 is inserted into the slot 102, it can prevent the two insulation board bodies 1 from being pulled apart from the side.
[0034] In this embodiment, the shape of the card block 104 is the same as the shape of the card slot 102, which facilitates the card block.
[0035] By providing a rectangular groove 101, a slot 102, an extension plate 103, and a locking block 104, when assembling two insulation board bodies 1, the extension plate 103 and locking block 104 on one insulation board body 1 are aligned with the rectangular groove 101 and slot 102 on the other insulation board body 1 and pressed in for assembly. This eliminates the need to assemble one insulation board body 1 from the side of the other insulation board body 1, increasing the convenience of assembly. Furthermore, after assembly, the locking block 104 on one insulation board body 1... Block 104 is snapped into the slot 102 on another insulation board body 1, which can prevent the two insulation board bodies 1 from being pulled apart from the side. Extension plate 103 is embedded in rectangular groove 101, so that extension plate 103 can block the snapping point between block 104 and slot 102, reduce the gap at the connection of the two insulation board bodies 1, and extension plate 103 can block and limit the connected insulation board bodies 1, which can prevent a single insulation board body 1 from falling off the wall and ensure the stability of the installation.
[0036] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these should also be considered within the scope of protection of this utility model. These will not affect the implementation effect of this utility model or the practicality of the patent.
Claims
1. An XPS insulation board with good flame retardant properties, characterized in that: It includes an insulation board body (1), the insulation board body (1) includes an XPS insulation layer (2) and a flame retardant layer (3), and the flame retardant layer (3) is wrapped around the outside of the XPS insulation layer (2); The insulation board body (1) also includes a rectangular groove (101), a slot (102), an extension plate (103), and a locking block (104). The rectangular groove (101) is opened on the inner side of the upper surface of the insulation board body (1). Multiple slots (102) are opened at the bottom of the rectangular groove (101). An extension plate (103) is integrally formed on the upper part of the outer end of the insulation board body (1). Multiple locking blocks (104) are integrally formed at the bottom of the extension plate (103), and the locking blocks (104) are connected to the outer end of the insulation board body (1).
2. The XPS insulation board with good flame retardant properties according to claim 1, characterized in that: The flame-retardant layer (3) is made of rock wool.
3. The XPS insulation board with good flame retardant properties according to claim 2, characterized in that: The rectangular groove (101) matches the extension plate (103), and the extension plate (103) on one insulation board body (1) can be embedded in the rectangular groove (101) on another insulation board body (1).
4. The XPS insulation board with good flame retardant properties according to claim 3, characterized in that: When an extension plate (103) on one of the insulation board bodies (1) is embedded in a rectangular groove (101) on another insulation board body (1), a locking block (104) is engaged in a locking groove (102).
5. The XPS insulation board with good flame retardant properties according to claim 4, characterized in that: The inner end opening of the slot (102) is rectangular, and the other end of the slot (102) is cylindrical. The width of the rectangular inner end of the slot (102) is smaller than the diameter of the cylindrical end.
6. The XPS insulation board with good flame retardant properties according to claim 4, characterized in that: The shape of the card block (104) is the same as the shape of the card slot (102).
Citation Information
Patent Citations
High-temperature-resistant flame-retardant composite XPS insulation board
CN217053848U