Ceramic fiber board lining metal thermal insulation layer
By designing limiting and splicing devices, the problem of connection failure between ceramic fiber insulation boards and metal shells at high temperatures was solved, achieving higher insulation performance and service life.
Patent Information
- Application Number
- CN202520101686.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-01-16
AI Technical Summary
The existing adhesive connection between ceramic fiber insulation board and metal shell is prone to failure at high temperatures, resulting in gaps, reduced insulation effect and increased thermal stress, which may lead to deformation, cracking or damage, and reduced service life.
By employing a limiting device and a splicing device, a combination of limiting rods, grooved rods, and threaded rods is used to achieve secondary limiting and fixing of the ceramic fiber insulation board and the metal shell, avoiding gaps caused by the softening of the adhesive and reducing thermal stress in high-temperature environments.
It improves the thermal insulation effect, reduces the gaps and thermal stress between the metal shell and the ceramic fiber insulation board in high-temperature environments, extends the service life, and reduces the probability of deformation and damage.
Smart Images
Figure CN223777978U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of metal insulation layer lining ceramic fiberboard, and in particular to a metal insulation layer lining ceramic fiberboard. Background Technology
[0002] Ceramic fiberboard with metal insulation layer refers to a high-efficiency, multi-functional insulation structure formed by combining ceramic fiberboard as the inner lining material with a metal outer shell.
[0003] When using ceramic fiber insulation boards as linings in conjunction with metal shells for building insulation, the ceramic fiber insulation boards are typically installed and fixed to the metal shell using adhesives. Over time, the adhesives may soften, decompose, or fail at high temperatures, leading to bonding failure and gaps between the metal shell and the ceramic fiber insulation boards. Heat can then be conducted through these gaps, reducing the insulation effect. In high-temperature environments, increased thermal stress may cause deformation, cracking, or even damage to the ceramic fiber insulation boards or the metal shell, reducing the lifespan of the metal insulation layer. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a ceramic fiberboard lined with a metal insulation layer.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a ceramic fiber board with a metal insulation layer, comprising a metal shell, a ceramic fiber insulation board disposed on one side of the metal shell, a plurality of limiting devices disposed between one side of the metal shell and one side of the ceramic fiber insulation board, splicing devices disposed on both sides of the metal shell, the limiting device comprising a hollow rod, a plurality of rectangular holes symmetrically opened on one side of the ceramic fiber insulation board, one side of the hollow rod being fixedly connected to one side of the metal shell, a threaded hole being opened on one side of the inner wall of the hollow rod, a grooved rod being slidably connected to the outer surface of the hollow rod, a limiting rod being rotatably connected to one side of the grooved rod, a threaded rod being threadedly connected to the inner wall of the threaded hole, the threaded rod being threadedly connected to one side of the grooved rod and the limiting rod, and the hollow rod, the grooved rod and the limiting rod being inserted into the inner wall of the rectangular hole.
[0006] The aforementioned components achieve the following effects: By setting a limiting device, when the ceramic fiber insulation board is installed and fixed to the metal shell using adhesive, the rectangular hole on one side of the ceramic fiber insulation board can be aligned with the hollow rod, grooved rod, and limiting rod. It is then inserted to a certain position, and the limiting rod is rotated 90 degrees. At this point, the threaded rod is held and rotated within the inner walls of the grooved rod and limiting rod, while the other end is spirally twisted within the inner wall of the threaded hole towards the metal shell. This pushes the limiting rod and grooved rod to slide on the outer surface of the hollow rod facing the metal shell, causing one side of the limiting rod to abut against one side of the ceramic fiber insulation board for secondary limiting and fixing. Thus, even after prolonged use, if the adhesive softens or decomposes, gaps will not form between the metal shell and the ceramic fiber insulation board, improving the insulation effect. Simultaneously, in high-temperature environments, it can reduce thermal stress, lowering the probability of deformation, cracking, or even damage to the ceramic fiber insulation board or metal shell, and extending the service life of the metal insulation layer.
[0007] Preferably, the cross-section of the limiting rod is trapezoidal, and the dimension of the end of the limiting rod away from the groove rod is smaller than the dimension of the other end.
[0008] The effect achieved by the above components is that by setting the limiting rod in a trapezoidal shape, the area at one end can be reduced, making it easier for the limiting rod and the groove rod to be quickly aligned and snapped into the rectangular hole when installing the ceramic fiber insulation board and the metal shell, thus facilitating installation.
[0009] Preferably, a screw groove is provided on one side of one end of the threaded rod, and the cross-section of the screw groove is cross-shaped.
[0010] The effect achieved by the above-mentioned components is that by setting a screw groove, a screwing tool of a corresponding shape can be inserted into the screw groove and rotated, thereby making it easy to screw the threaded rod and facilitate its operation.
[0011] Preferably, a circular groove is provided on one side of the limiting rod, and one end of the threaded rod is completely inserted into the inner wall of the circular groove.
[0012] The effect achieved by the above components is that by setting the circular groove, one end of the threaded rod will not protrude from one side of the limiting rod, thus avoiding affecting the installation and use of the ceramic fiber insulation board.
[0013] Preferably, one end of the threaded rod is fixedly connected to a first limiting block, and the outer surface dimension of the first limiting block is larger than the inner wall dimension of the threaded hole.
[0014] The effect achieved by the above components is that by setting the first limiting block, the threaded rod can be limited in the inner wall of the threaded hole and the hollow rod, so that after it is screwed to a certain position, one end is not easy to be screwed out of the threaded hole, thus avoiding falling off.
[0015] Preferably, the splicing device includes two grooved blocks. A first slot is symmetrically formed on both sides of the metal casing. A second slot is formed on one side of the inner wall of the first slot. One side of the grooved block is fixedly connected to one side of the metal casing. The grooved block is inserted into the inner wall of the first slot. A spring is fixedly connected to one side of the inner wall of the grooved block. A second limiting block is fixedly connected to one end of the spring. The second limiting block is slidably connected to the inner wall of the grooved block. One end of the second limiting block is inserted into the inner wall of the second slot.
[0016] The effect achieved by the above-mentioned components is as follows: By setting up the splicing device, when it is necessary to splice several metal shells and ceramic fiber insulation boards together, the second limiting block is first slid to one end in a certain position in the inner wall of the grooved block, causing the spring to contract. Then, the grooved block on one of the metal shells is inserted into the first slot on another metal shell. The second limiting block is released, and under the reset action of the spring, one end of the second limiting block can be inserted into the second slot, so that the grooved block is limited in the first slot. Thus, two adjacent metal shells can be spliced together, which is convenient for installation and use.
[0017] Preferably, a rectangular groove is provided on one side of the second limiting block, and the rectangular groove is located on one side near the spring.
[0018] The effect achieved by the above components is that by setting a rectangular groove, one end of the second limiting block can be easily gripped and pulled, which facilitates the splicing operation of the metal shell.
[0019] Preferably, a telescopic rod is fixedly connected to one side of the inner wall of the groove block, one end of the telescopic rod is fixedly connected to one side of the second limiting block, and the outer surface of the telescopic rod is sleeved and connected to the inner wall of the spring.
[0020] The effect achieved by the above components is that by setting up the telescopic rod, the inner wall of the spring can be supported and reinforced, making it less prone to damage during use and increasing its service life.
[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0022] In this invention, by setting a limiting device, when the ceramic fiber insulation board is installed and fixed to the metal shell by adhesive, the rectangular hole on one side of the ceramic fiber insulation board can be aligned with the hollow rod, the grooved rod, and the limiting rod, and then inserted into a certain position. The limiting rod is then rotated 90 degrees. At this point, the threaded rod is held and rotated within the inner walls of the grooved rod and the limiting rod, while the other end is spirally twisted within the inner wall of the threaded hole towards the metal shell. This pushes the limiting rod and the grooved rod to slide on the outer surface of the hollow rod facing the metal shell, causing one side of the limiting rod to abut against one side of the ceramic fiber insulation board, thus providing secondary limiting and fixing. In this way, even if the adhesive softens or decomposes after prolonged use, gaps will not form between the metal shell and the ceramic fiber insulation board, improving the insulation effect. Simultaneously, in high-temperature environments, it can reduce the generation of thermal stress, lowering the probability of deformation, cracking, or even damage to the ceramic fiber insulation board or the metal shell, and increasing the service life of the metal insulation layer. Attached Figure Description
[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0024] Figure 2 This is a three-dimensional structural diagram of the ceramic fiber insulation board of this utility model;
[0025] Figure 3 This is a three-dimensional structural diagram of the metal casing of this utility model;
[0026] Figure 4 for Figure 3 Enlarged 3D structural diagram at point A;
[0027] Figure 5 This is a three-dimensional structural diagram of the grooved card block of this utility model;
[0028] Figure 6 for Figure 5 A three-dimensional schematic diagram of the middle part of the structure.
[0029] Legend: 1. Metal shell; 2. Limiting device; 3. Splicing device; 4. Ceramic fiber insulation board; 21. Rectangular hole; 22. Hollow rod; 23. Threaded hole; 24. Groove rod; 25. Limiting rod; 26. Threaded rod; 27. Tight groove; 28. Circular groove; 29. First limiting block; 31. First slot; 32. Second slot; 33. Groove block; 34. Spring; 35. Second limiting block; 36. Rectangular groove; 37. Telescopic rod. Detailed Implementation
[0030] Example 1, such as Figure 1-6As shown, a ceramic fiber board with a metal insulation layer includes a metal shell 1. A ceramic fiber insulation board 4 is provided on one side of the metal shell 1. Several limiting devices 2 are provided between one side of the metal shell 1 and one side of the ceramic fiber insulation board 4. Splicing devices 3 are provided on both sides of the metal shell 1. The limiting device 2 includes a hollow rod 22. Several rectangular holes 21 are symmetrically opened on one side of the ceramic fiber insulation board 4. One side of the hollow rod 22 is fixedly connected to one side of the metal shell 1. A threaded hole 23 is opened on one side of the inner wall of the hollow rod 22. A grooved rod 24 is slidably connected to the outer surface of the hollow rod 22. A limiting rod 25 is rotatably connected to one side of the grooved rod 24. A threaded rod 26 is threadedly connected to the inner wall of the threaded hole 23. The threaded rod 26 is connected to one side of the grooved rod 24 and the limiting rod 25. The hollow rod 22, the grooved rod 24 and the limiting rod 25 are all inserted into the inner wall of the rectangular hole 21. When installing and fixing the ceramic fiber insulation board 4 to the metal shell 1 using adhesive, the rectangular hole 21 on one side of the ceramic fiber insulation board 4 can be aligned with the hollow rod 22, the grooved rod 24, and the limiting rod 25. Then, it is inserted to a certain position. The limiting rod 25 is rotated to ninety degrees. At this point, the threaded rod 26 is held and rotated within the inner walls of the grooved rod 24 and the limiting rod 25. The other end is spirally twisted within the inner wall of the threaded hole 23 towards one end of the metal shell 1, pushing the limiting rod 25 and the grooved rod 24 against the outer surface of the hollow rod 22. Slide the metal shell 1 towards the side, so that one side of its limiting rod 25 abuts against one side of the ceramic fiber insulation board 4, and fix it in a secondary limiting position. In this way, even if the adhesive softens or decomposes after the metal shell 1 and the ceramic fiber insulation board 4 have been used for a long time, gaps will not be formed between the metal shell 1 and the ceramic fiber insulation board 4, thus improving the insulation effect. At the same time, in high-temperature environments, it can also reduce the generation of thermal stress, reduce the probability of deformation, cracking or even damage of the ceramic fiber insulation board 4 or the metal shell 1, and improve the service life of the metal insulation layer.
[0031] Reference Figure 2-4 As shown, this embodiment discloses that the limiting rod 25 has a trapezoidal cross-section, and the end of the limiting rod 25 away from the groove rod 24 is smaller than the other end. By setting the limiting rod 25 to a trapezoidal shape, the area at one end can be reduced, making it easier for the limiting rod 25 and the groove rod 24 to be quickly aligned and inserted into the rectangular hole 21 during the installation of the ceramic fiber insulation board 4 and the metal shell 1, thus facilitating installation. A screw groove 27 is provided on one side of one end of the threaded rod 26, and the cross-section of the screw groove 27 is cross-shaped. By providing the screw groove 27, a screwing tool of a corresponding shape can be inserted into the screw groove 27 for rotation, thereby facilitating the screwing of the threaded rod 26 and making it easier to operate.
[0032] Reference Figure 2-4As shown, this embodiment discloses a circular groove 28 on one side of the limiting rod 25, with one end of the threaded rod 26 fully inserted into the inner wall of the circular groove 28. By providing the circular groove 28, one end of the threaded rod 26 can be prevented from protruding from one side of the limiting rod 25, thus avoiding interference with the installation and use of the ceramic fiber insulation board 4. One end of the threaded rod 26 is fixedly connected to a first limiting block 29, the outer surface dimension of which is larger than the inner wall dimension of the threaded hole 23. By providing the first limiting block 29, the threaded rod 26 can be limited within the inner wall of the threaded hole 23 and the hollow rod 22, preventing one end from easily being screwed out of the threaded hole 23 after being screwed to a certain position, thus avoiding detachment.
[0033] Reference Figure 5 and Figure 6 As shown, this embodiment discloses a splicing device 3 including two grooved blocks 33. The metal shell 1 has symmetrical first slots 31 on both sides. The inner wall of the first slot 31 has a second slot 32 on one side. One side of the grooved block 33 is fixedly connected to one side of the metal shell 1. The grooved block 33 is inserted into the inner wall of the first slot 31. A spring 34 is fixedly connected to one side of the inner wall of the grooved block 33. One end of the spring 34 is fixedly connected to a second limiting block 35. The second limiting block 35 is slidably connected to the inner wall of the grooved block 33. One end of the second limiting block 35 is inserted into the inner wall of the second slot 32. When several metal shells 1 and ceramic fiber insulation boards 4 need to be spliced together, first slide the second limiting block 35 to one end in a certain position in the inner wall of the groove block 33, causing the spring 34 to contract. Then, insert the groove block 33 on one of the metal shells 1 into the first slot 31 on the other metal shell 1. Release the second limiting block 35, so that under the reset action of the spring 34, one end of the second limiting block 35 can be inserted into the second slot 32, so that the groove block is limited in the first slot 31. Thus, two adjacent metal shells 1 can be spliced together, which is convenient for installation and use.
[0034] Reference Figure 5 and Figure 6 As shown, this embodiment discloses a rectangular groove 36 on one side of the second limiting block 35, located near the end of the spring 34. The rectangular groove 36 allows for easy clamping and pulling of one end of the second limiting block 35, facilitating the assembly of the metal casing 1. A telescopic rod 37 is fixedly connected to one side of the inner wall of the grooved locking block 33. One end of the telescopic rod 37 is fixedly connected to one side of the second limiting block 35, and the outer surface of the telescopic rod 37 is sleeved onto the inner wall of the spring 34. The telescopic rod 37 provides support and reinforcement to the inner wall of the spring 34, reducing its susceptibility to damage during use and extending its service life.
[0035] Working principle: When installing and fixing the ceramic fiber insulation board 4 to the metal shell 1 using adhesive, the rectangular hole 21 on one side of the ceramic fiber insulation board 4 can be aligned with the hollow rod 22, the grooved rod 24, and the limiting rod 25. It is then inserted to a certain position. The limiting rod 25 is rotated to 90 degrees. At this point, the threaded rod 26 is held and rotated within the inner walls of the grooved rod 24 and the limiting rod 25. The other end is spirally twisted within the inner wall of the threaded hole 23 towards one end of the metal shell 1, pushing the limiting rod 25 and the grooved rod 24 within the hollow rod 22. The outer surface slides to the side of the metal shell 1, so that one side of its limiting rod 25 abuts against one side of the ceramic fiber insulation board 4, thereby limiting and fixing it a second time. In this way, even if the adhesive softens or decomposes after the metal shell 1 and the ceramic fiber insulation board 4 have been used for a long time, gaps will not be formed between the metal shell 1 and the ceramic fiber insulation board 4, thus improving the insulation effect. At the same time, in high-temperature environments, it can also reduce the generation of thermal stress, reduce the probability of deformation, cracking or even damage of the ceramic fiber insulation board 4 or the metal shell 1, and improve the service life of the metal insulation layer.
[0036] When several metal shells 1 and ceramic fiber insulation boards 4 need to be spliced together, first slide the second limiting block 35 to one end in a certain position in the inner wall of the groove block 33, causing the spring 34 to contract. Then, insert the groove block 33 on one of the metal shells 1 into the first slot 31 on the other metal shell 1. Release the second limiting block 35, so that under the reset action of the spring 34, one end of the second limiting block 35 can be inserted into the second slot 32, so that the groove block is limited in the first slot 31. Thus, two adjacent metal shells 1 can be spliced together, which is convenient for installation and use.
Claims
1. A ceramic fiberboard with an inner metal insulation layer, comprising a metal outer shell (1), characterized in that: A ceramic fiber insulation board (4) is provided on one side of the metal shell (1). Several limiting devices (2) are provided between one side of the metal shell (1) and one side of the ceramic fiber insulation board (4). Splicing devices (3) are provided on both sides of the metal shell (1). The limiting device (2) includes a hollow rod (22). Several rectangular holes (21) are symmetrically opened on one side of the ceramic fiber insulation board (4). One side of the hollow rod (22) is fixedly connected to one side of the metal shell (1). A threaded hole (23) is provided on one side of the inner wall of the hollow rod (22). A grooved rod (24) is slidably connected to the outer surface of the hollow rod (22). A limiting rod (25) is rotatably connected to one side of the grooved rod (24). A threaded rod (26) is threadedly connected to the inner wall of the threaded hole (23). The threaded rod (26) is connected to one side of the grooved rod (24) and the limiting rod (25). The hollow rod (22), the grooved rod (24) and the limiting rod (25) are all inserted into the inner wall of the rectangular hole (21).
2. The ceramic fiberboard with an inner metal insulation layer according to claim 1, characterized in that: The cross-section of the limiting rod (25) is trapezoidal, and the dimension of the end of the limiting rod (25) away from the groove rod (24) is smaller than the dimension of the other end.
3. The ceramic fiberboard with an inner metal insulation layer according to claim 1, characterized in that: The threaded rod (26) has a screw groove (27) on one side of one end, and the cross-section of the screw groove (27) is cross-shaped.
4. The ceramic fiberboard with an inner metal insulation layer according to claim 1, characterized in that: A circular groove (28) is provided on one side of the limiting rod (25), and one end of the threaded rod (26) is completely inserted into the inner wall of the circular groove (28).
5. The ceramic fiberboard with an inner metal insulation layer according to claim 1, characterized in that: One end of the threaded rod (26) is fixedly connected to a first limiting block (29), the outer surface dimension of the first limiting block (29) being larger than the inner wall dimension of the threaded hole (23).
6. The ceramic fiberboard with an inner metal insulation layer according to claim 1, characterized in that: The splicing device (3) includes two grooved blocks (33). The metal shell (1) has a first slot (31) symmetrically opened on both sides. A second slot (32) is opened on one side of the inner wall of the first slot (31). One side of the grooved block (33) is fixedly connected to one side of the metal shell (1). The grooved block (33) is inserted into the inner wall of the first slot (31). A spring (34) is fixedly connected to one side of the inner wall of the grooved block (33). A second limiting block (35) is fixedly connected to one end of the spring (34). The second limiting block (35) is slidably connected to the inner wall of the grooved block (33). One end of the second limiting block (35) is inserted into the inner wall of the second slot (32).
7. The ceramic fiberboard with an inner metal insulation layer according to claim 6, characterized in that: A rectangular groove (36) is provided on one side of the second limiting block (35), and the rectangular groove (36) is located on one side near the spring (34).
8. The ceramic fiberboard with an inner metal insulation layer according to claim 6, characterized in that: A telescopic rod (37) is fixedly connected to one side of the inner wall of the groove block (33). One end of the telescopic rod (37) is fixedly connected to one side of the second limiting block (35). The outer surface of the telescopic rod (37) is sleeved and connected to the inner wall of the spring (34).