Polyurethane foam with high flame retardance

Abstract

The utility model relates to the technical field of foam, and discloses high-flame-retardance polyurethane foam which comprises a foam body, flame-retardant mechanisms used for flame retardance are arranged on the upper side and the lower side of the foam body respectively, and installation assemblies used for installing the flame-retardant mechanisms are arranged at the top end and the bottom end of the foam body respectively. According to the high-flame-retardant polyurethane foam, the flame-retardant mechanisms are arranged to be matched with the foam body, so that the high-flame-retardant polyurethane foam can have good flame-retardant performance, fire disasters are effectively prevented, meanwhile, the flame-retardant mechanisms are arranged to be matched with the mounting assemblies, the flame-retardant mechanisms are arranged to be matched with the flame-retardant mechanisms, and therefore the flame-retardant performance of the high-flame-retardant polyurethane foam is improved, and the flame-retardant performance of the high-flame-retardant polyurethane foam is improved. The flame-retardant mechanism can be dismounted and mounted, so that when the flame-retardant mechanism is abraded or damaged, the flame-retardant mechanism can be replaced more conveniently, the flame retardance of the device can be better guaranteed, and the convenience of the device is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of foam technology, specifically to a highly flame-retardant polyurethane foam. Background Technology

[0002] Polyurethane foam is a type of foam plastic made from polyurethane. It is an elastic polymer and is also known as PU foam. It is a new type of polymer material and is known as the "fifth largest plastic". Due to its excellent performance, it is widely used in many sectors of the national economy. However, polyurethane foam itself is a flammable material, containing flammable hydrocarbon segments. It has a low density and a large specific surface area. Untreated polyurethane foam will burn rapidly when exposed to fire. Therefore, a flame-retardant polyurethane foam is needed.

[0003] Existing patent publication number CN215152565U discloses a flame-retardant polyurethane foam, including a foam body. A first flame-retardant mechanism is provided on the upper outer surface of the foam body, and a first protective mechanism is provided on the upper outer surface of the first flame-retardant mechanism. A second flame-retardant mechanism is provided on the lower outer surface of the foam body, and a second protective mechanism is provided on the lower outer surface of the second flame-retardant mechanism. This flame-retardant polyurethane foam, through its flame-retardant mechanisms, effectively enhances the flame-retardancy of the polyurethane foam, effectively preventing fires. The main material of the magnesium oxide board is active high-purity magnesium oxide, which is resistant to high temperatures and has strong flame-retardant properties. The two sets of flame-retardant coatings are made of the same material, primarily polytetrafluoroethylene (PTFE), which also has good flame-retardant properties and can provide a dual flame-retardant effect with the magnesium oxide board. The protective mechanisms effectively improve the protective properties of the foam body, leading to better application prospects.

[0004] The above solution has the following problems during implementation: the device is equipped with flame-retardant mechanisms at both the top and bottom of the foam body to increase the flame-retardant performance of the foam body. However, the flame-retardant mechanisms are not easy to disassemble and replace. When the flame-retardant mechanisms are worn or damaged, the flame-retardant effect of the device is easily affected, which greatly reduces the practicality of the device. Therefore, we provide a high flame-retardant polyurethane foam to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a highly flame-retardant polyurethane foam, which solves the problem that the flame-retardant mechanism of the existing device is not easy to disassemble and replace. As a result, when the flame-retardant mechanism is worn or damaged, it can easily affect the flame-retardant effect of the device and greatly reduce its practicality.

[0006] This utility model provides the following technical solution: a high flame-retardant polyurethane foam, including a foam body, flame-retardant mechanisms for flame retardancy are provided on both the upper and lower sides of the foam body, and mounting components for mounting the flame-retardant mechanisms are provided on the top and bottom ends of the foam body, and each set of flame-retardant mechanisms is mounted on one end of the foam body through the mounting components.

[0007] As a preferred embodiment of the above technical solution, each group of flame-retardant mechanisms includes a magnesium oxide board, and the top and bottom ends of each group of magnesium oxide boards are coated with a first flame-retardant coating and a second flame-retardant coating, respectively.

[0008] The above technical solution enables the device to have excellent flame-retardant properties, thereby effectively preventing fires.

[0009] As a preferred embodiment of the above technical solution, each group of magnesium oxide boards is connected to an insert block at equal intervals at one end near the foam body, and one end of each insert block is connected to a locking block. Each group of magnesium oxide boards is installed and fixed by an installation assembly.

[0010] The above technical solution, with its insert and locking blocks, makes the installation of the flame-retardant mechanism more convenient.

[0011] As a preferred embodiment of the above technical solution, each set of mounting components includes a connecting plate, each set of connecting plates is fixedly connected to the foam body, each set of connecting plates has slots equidistantly opened at one end near the foam body, each set of inserts is inserted into the slots, each set of slots has a card slot on one side of the inner wall, and each set of card blocks is inserted into the card slot.

[0012] The above technical solution allows for the installation of the flame-retardant mechanism by cooperating with the insert and locking blocks.

[0013] As a preferred embodiment of the above technical solution, a sliding groove is provided on the side of the inner wall of each set of slots away from the card slot, a spring is installed on the inner side of each set of sliding grooves, a limit block is slidably installed at the opening of each set of sliding grooves, and the inner ends of the limit blocks are connected by springs.

[0014] The above technical solution enables the insertion block and the locking block to be limited, thereby making the flame-retardant mechanism more securely installed.

[0015] As a preferred embodiment of the above technical solution, the end of each set of limiting blocks away from the foam body is inclined.

[0016] The above technical solution allows the insert block to better push the limiting block to move by abutting against the inclined surface.

[0017] As a preferred embodiment of the above technical solution, a wear-resistant layer is installed on the end of each group of magnesium oxide boards away from the foam body.

[0018] The above technical solutions can increase the wear resistance of the flame-retardant mechanism and reduce the possibility of damage to the flame-retardant mechanism.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] This invention, by setting a flame-retardant mechanism in conjunction with the foam body, enables the device to have excellent flame-retardant performance, thereby effectively preventing fires. At the same time, by setting an installation component in conjunction with the flame-retardant mechanism, the flame-retardant mechanism can be disassembled and installed. This makes it easier to replace the flame-retardant mechanism when it is worn or damaged, thus better ensuring the flame-retardant performance of the device and greatly increasing its convenience. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a highly flame-retardant polyurethane foam.

[0022] Figure 2 This is a schematic diagram of the cross-sectional structure of a highly flame-retardant polyurethane foam.

[0023] Figure 3 for Figure 2 Enlarged diagram of A in the middle;

[0024] Figure 4 This is a schematic diagram showing the disassembled structure of a highly flame-retardant polyurethane foam.

[0025] In the diagram: 1. Foam body; 2. Mounting assembly; 21. Connecting plate; 22. Slot; 23. Card slot; 24. Slide groove; 25. Spring; 26. Limiting block; 3. Flame retardant mechanism; 31. Magnesium oxide board; 32. First flame retardant coating; 33. Second flame retardant coating; 34. Insert block; 35. Card block; 4. Wear-resistant layer. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0027] like Figure 1 , Figure 2 and Figure 3As shown, this utility model provides a technical solution: a high flame-retardant polyurethane foam, including a foam body 1, with flame-retardant mechanisms 3 on both the upper and lower sides of the foam body 1. Each flame-retardant mechanism 3 includes a magnesium oxide board 31, which makes the device flame-retardant. The top and bottom ends of each magnesium oxide board 31 are coated with a first flame-retardant coating 32 and a second flame-retardant coating 33, respectively, which can increase the flame retardancy of the device and greatly increase its practicality. A wear-resistant layer 4 is installed on the end of each magnesium oxide board 31 away from the foam body 1, which can increase the wear resistance of the flame-retardant mechanism 3 and reduce the possibility of damage to the flame-retardant mechanism 3.

[0028] It should be noted that the main material of the magnesium oxide board 31 is active high-purity magnesium oxide, which is resistant to high temperature and has strong flame retardant properties. The main material of the first flame retardant coating 32 and the second flame retardant coating 33 is polytetrafluoroethylene, which also has good flame retardant properties.

[0029] Furthermore, the wear-resistant layer 4 is made of wear-resistant rubber, which increases the wear resistance of the device and reduces wear.

[0030] As one implementation method in this embodiment, such as Figure 2 , Figure 3 and Figure 4 As shown, each set of magnesium oxide boards 31 has inserts 34 equidistantly connected to one end near the foam body 1, and each set of inserts 34 has a locking block 35 connected to one end. Each set of magnesium oxide boards 31 is fixedly installed by mounting components 2. Mounting components 2 for mounting flame-retardant mechanisms 3 are provided at the top and bottom ends of the foam body 1. Each set of flame-retardant mechanisms 3 is installed at one end of the foam body 1 by mounting components 2. Each set of mounting components 2 includes a connecting plate 21, and each set of connecting plates 21 is fixedly connected to the foam body 1. Each set of connecting plates 21 has slots 22 equidistantly opened at one end near the foam body 1. Each set of inserts 34 is inserted into the slots 22. One side of the inner wall of each set of slots 22 Each component has a slot 23, and each set of locking blocks 35 is inserted into the slot 23. This structure completes the installation of the magnesium oxide board 31 by aligning the insert block 34 and locking block 35 connected to the magnesium oxide board 31 with the slot 22 and inserting them, and then pushing the insert block 34 to fully insert the locking block 35 into the slot 23. Alternatively, pushing the magnesium oxide board 31 moves the insert block 34, which in turn moves the locking block 35 from the slot 23 to the slot 22. Then pulling the magnesium oxide board 31 moves the insert block 34, which in turn moves the locking block 35 out of the slot 22, thus completing the disassembly of the magnesium oxide board 31. This design better ensures the flame retardancy of the device and greatly increases its convenience.

[0031] As one implementation method in this embodiment, such as Figure 3 and Figure 4As shown, each set of slots 22 has a sliding groove 24 on the side of the inner wall away from the slot 23. A spring 25 is installed on the inner side of each set of sliding grooves 24. A limit block 26 is slidably installed at the opening of each set of sliding grooves 24, and the inner ends of the limit blocks 26 are connected to the springs 25. When the insert 34 is inserted into the slot 22, it will squeeze and push the limit block 26. Then, the limit block 26 will push the insert 34 to drive the slot 35 into the slot 23 through the spring force of the spring 25, and hold the insert 34 and the slot 35 against each other, thereby limiting the insertion 34 and the slot 35, making the flame retardant mechanism 3 more securely installed. The end of each set of limit blocks 26 away from the foam body 1 is inclined, so that the insert 34 can better push the limit block 26 to move by abutting against the inclined surface.

[0032] Working principle: By aligning and inserting the insert block 34 and the locking block 35 connected to the magnesium oxide board 31 into the slot 22, the insert block 34 abuts against the inclined surface of the limiting block 26, allowing the limiting block 26 to be pushed into the slide groove 24 to compress the spring 25. At this time, the insert block 34 will drive the locking block 35 to be fully inserted into the slot 22. Then, the spring force of the spring 25 pushes the limiting block 26, which in turn pushes the insert block 34 to drive the locking block 35 into the slot 23, thus completing the installation of the magnesium oxide board 31. By setting the magnesium oxide board 31, the device can be made flame retardant. Furthermore, by coating both ends of the magnesium oxide board 31 with a first flame retardant coating 32 and a second flame retardant coating 33, the flame retardancy of the device can be increased, greatly increasing the practicality of the device.

[0033] In addition, when the magnesium oxide board 31, the first flame-retardant coating 32, or the second flame-retardant coating 33 is worn or damaged and needs to be replaced, simply push the magnesium oxide board 31 to drive the insert block 34. The insert block 34 will drive the locking block 35 to move from the slot 23 to the slot 22. At the same time, the insert block 34 will push the limiting block 26 to move into the slide groove 24. Once the locking block 35 is completely moved into the slot 22, the magnesium oxide board 31 can be pulled. The magnesium oxide board 31 will drive the insert block 34, and the insert block 34 will drive the locking block 35 to be pulled out from the slot 22. In this way, the flame-retardant mechanism 3 can be disassembled and replaced, which can better ensure the flame retardancy of the device and greatly increase the convenience of the device.

[0034] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A polyurethane foam of high flame retardancy comprising a foam body (1), characterized in that: The upper and lower sides of the foam body (1) are provided with flame-retardant mechanisms (3) for flame retardation, the top end and the bottom end of the foam body (1) are provided with mounting assemblies (2) for mounting the flame-retardant mechanisms (3), each group of the flame-retardant mechanisms (3) is mounted at one end of the foam body (1) through the mounting assembly (2); Each group of the flame-retardant mechanisms (3) comprises a glass-magnesium plate (31), the top end and the bottom end of each group of the glass-magnesium plate (31) are respectively coated with a first flame-retardant coating film (32) and a second flame-retardant coating film (33); Each group of the glass-magnesium plate (31) is connected with an insertion block (34) at equal intervals near one end of the foam body (1), one end of each group of the insertion block (34) is connected with a clamping block (35), and each group of the glass-magnesium plate (31) is mounted and fixed through the mounting assembly (2); Each group of the mounting assembly (2) comprises a connecting plate (21), each group of the connecting plate (21) is fixedly connected with the foam body (1), the end of each group of the connecting plate (21) near the foam body (1) is provided with an insertion slot (22) at equal intervals, each group of the insertion block (34) is inserted into the insertion slot (22), and the inner wall of each group of the insertion slot (22) is provided with a clamping slot (23) on one side, each group of the clamping block (35) is inserted into the clamping slot (23).

2. The polyurethane foam according to claim 1, wherein: The inner wall of each group of the insertion slot (22) is provided with a sliding slot (24) on the side away from the clamping slot (23), the inner side of each group of the sliding slot (24) is mounted with a spring (25), the opening of each group of the sliding slot (24) is slidingly mounted with a limiting block (26), and the inner end of the limiting block (26) is connected with the spring (25).

3. The polyurethane foam according to claim 2, wherein: The end of each group of the limiting block (26) away from the foam body (1) is an inclined surface.

4. The polyurethane foam according to claim 1, wherein: The end of each group of the glass-magnesium plate (31) away from the foam body (1) is mounted with a wear-resistant layer (4).

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