Polyurethane composite insulation board with good flame retardant effect

Abstract

The utility model discloses a polyurethane composite insulation board with a good flame retardant effect, which belongs to the field of insulation boards and comprises an insulation board body, the insulation board body comprises an outer frame, a base plate is fixedly connected to the middle of an inner cavity of the outer frame, a heat insulation layer is laid outside the base plate, a sand grain layer is filled between the heat insulation layer and the outer frame, and the outer frame is fixedly connected with the base plate. The bottom of one side of the insulation board body is fixedly connected with a first connecting block, and the top of the other side of the insulation board body is fixedly connected with a second connecting block. According to the polyurethane composite insulation board with the good flame-retardant effect, by arranging the outer frame made of the polyurethane material, fire spreading can be slowed down by means of the high-temperature-resistant and flame-retardant characteristics of the polyurethane material, the fire can be blocked preliminarily, and by means of the sand grain layer, when the outer frame is burnt through, fine sand can flow out instantly, open fire is extinguished, and the flame-retardant effect is good. In this way, flame retardance can be effectively achieved, and therefore the flame retardant effect of the heat preservation plate body is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of thermal insulation boards, and in particular relates to a polyurethane composite thermal insulation board with good flame retardant effect. Background Art

[0002] As the name suggests, insulation board is a board used for insulation of buildings. The insulation board has moisture-proof, waterproof and flame-retardant properties, which can reduce the thickness of the building's external envelope structure, thereby increasing the indoor usable area.

[0003] According to a modified rigid foam polyurethane flame retardant insulation board with authorization announcement number CN211850086U, the patent is a known prior art, and although the patent has the advantages of low heat release and flame retardant properties, the technical solution of the patent still has the following defects in actual use: the patent sets the flame retardant layer inside the board body. When the surface of the board body is burned by open flame, it is difficult to block the fire. The board body will be damaged under long-term burning, which will lead to poor flame retardant effect of the insulation board. For this reason, we propose a polyurethane composite insulation board with good flame retardant effect. Utility Model Content

[0004] The utility model aims to provide a polyurethane composite thermal insulation board with good flame retardant effect to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solutions: a polyurethane composite insulation board with good flame retardant effect, comprising an insulation board body, the insulation board body comprising an outer frame, a substrate is fixedly connected to the middle of the inner cavity of the outer frame, an insulation layer is laid on the outside of the substrate, and a sand layer is filled between the insulation layer and the outer frame;

[0006] A No. 1 connecting block is fixedly connected to the bottom of one side of the insulation board body, and a No. 2 connecting block is fixedly connected to the top of the other side of the insulation board body, a clamping slot is provided on the top of the No. 1 connecting block, and a No. 1 through slot is provided inside the No. 1 connecting block, a nut is fixedly connected inside the No. 1 through slot, a clamping block is fixedly connected to the bottom of the No. 2 connecting block, and a No. 2 through slot is provided inside the No. 2 connecting block, and a bolt is provided inside the No. 2 through slot.

[0007] As a preferred implementation, the outer frame is made of polyurethane material, and the insulation layer is made of glass fiber material.

[0008] As a preferred implementation, the No. 1 connecting block and the No. 2 connecting block are equal in size, the number of the card slots is two, and the No. 1 through slot is located between the two card slots.

[0009] As a preferred implementation, the number of the card blocks is two, and the No. 2 through slot is located between the two card blocks.

[0010] As a preferred embodiment, the bolt is movably sleeved inside the No. 2 through groove, and the external thread on the outside of the bolt is matched with the internal thread on the inside of the nut.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The polyurethane composite thermal insulation board with good flame retardant effect can slow down the spread of fire by setting an outer frame of polyurethane material, utilizing the high temperature resistance and flame retardant properties of polyurethane material, and is convenient for initially blocking the fire. Moreover, by utilizing the sand layer, when the outer frame is burned through, fine sand will flow out instantly and put out the open fire, so that flame retardant can be effectively performed, thereby improving the flame retardant effect of the thermal insulation board body;

[0013] The polyurethane composite thermal insulation board with good flame retardant effect can facilitate the connection and fixation between two thermal insulation board bodies during the process of assembling the thermal insulation boards by arranging a No. 1 connecting block, a No. 2 connecting block, a clamping groove, a No. 1 through groove, a nut, a clamping block, a No. 2 through groove and a bolt, thereby enhancing the firmness of the splicing between the two thermal insulation board bodies and bringing convenience to the installation of the thermal insulation boards. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a partial cross-sectional view of the structure of the utility model;

[0016] Figure 3 In the utility model structure Figure 2 A magnified schematic diagram of point A;

[0017] Figure 4 In the utility model structure Figure 2 An enlarged schematic diagram of point B.

[0018] In the figure: 1. Insulation board body; 11. Outer frame; 12. Base plate; 13. Insulation layer; 14. Sand layer; 2. Connecting block No. 1; 3. Connecting block No. 2; 4. Slot; 5. Through slot No. 1; 6. Nut; 7. Block; 8. Through slot No. 2; 9. Bolt. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with the embodiments.

[0020] The following examples are used to illustrate the present invention, but cannot be used to limit the scope of protection of the present invention. The conditions in the examples can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0021] See also Figure 1 and Figure 2 The utility model provides a polyurethane composite thermal insulation board with good flame retardant effect, comprising a thermal insulation board body 1, the thermal insulation board body 1 comprising an outer frame 11, a base plate 12 is fixedly connected to the middle of the inner cavity of the outer frame 11, a thermal insulation layer 13 is laid on the outside of the base plate 12, a sand layer 14 is filled between the thermal insulation layer 13 and the outer frame 11, the material of the outer frame 11 is polyurethane material, and the material of the thermal insulation layer 13 is glass fiber material;

[0022] In this embodiment, when the insulation board body 1 is subjected to open flame combustion, the outer frame 11 of the polyurethane material can initially block the fire, and utilize the high temperature resistance and flame retardant properties of the polyurethane material to slow down the spread of the fire. If the outer frame 11 is burned through, the fine sand in the sand layer 14 will flow out instantly and put out the open flame, which can effectively perform flame retardancy, thereby improving the flame retardant effect of the insulation board body 1. At the same time, the heat insulation layer 13 of the glass fiber material can slow down the heat transfer speed and prevent the substrate 12 from being damaged due to high temperature, thereby improving the service life of the insulation board.

[0023] See also Figure 2 , Figure 3 and Figure 4 , a No. 1 connecting block 2 is fixedly connected to the bottom of one side of the insulation board body 1, and a No. 2 connecting block 3 is fixedly connected to the top of the other side of the insulation board body 1, the No. 1 connecting block 2 and the No. 2 connecting block 3 are equal in size, a card slot 4 is provided on the top of the No. 1 connecting block 2, and a No. 1 through slot 5 is provided inside the No. 1 connecting block 2, the number of the card slots 4 is two, the No. 1 through slot 5 is located between the two card slots 4, a nut 6 is fixedly connected inside the No. 1 through slot 5, a card block 7 is fixedly connected to the bottom of the No. 2 connecting block 3, and a No. 2 through slot 8 is provided inside the No. 2 connecting block 3, the number of the card blocks 7 is two, the No. 2 through slot 8 is located between the two card blocks 7, a bolt 9 is provided inside the No. 2 through slot 8, the bolt 9 is movably sleeved inside the No. 2 through slot 8, and the external thread of the bolt 9 is adapted to the internal thread of the nut 6;

[0024] In this embodiment, when two insulation boards need to be assembled, the No. 1 connecting block 2 of one insulation board body 1 is placed under the No. 2 connecting block 3 of the other insulation board, and the two insulation board bodies 1 are pressed so that the No. 1 connecting block 2 and the No. 2 connecting block 3 are closed to each other. At this time, the card block 7 will be inserted into the interior of the card slot 4, so that the No. 1 through slot 5 and the No. 2 through slot 8 are connected, and then the bolt 9 is rotated to rotate and move downward, so that the bottom end of the bolt 9 is inserted into the interior of the nut 6, which is convenient for fixing the No. 1 connecting block 2 and the No. 2 connecting block 3, that is, the two insulation boards can be installed and fixed.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polyurethane composite thermal insulation board with good flame retardant effect, comprising a thermal insulation board body (1), characterized in that: The insulation board body (1) comprises an outer frame (11), a base plate (12) is fixedly connected to the middle of the inner cavity of the outer frame (11), a heat insulation layer (13) is laid on the outside of the base plate (12), and a sand layer (14) is filled between the heat insulation layer (13) and the outer frame (11); A No. 1 connecting block (2) is fixedly connected to the bottom of one side of the insulation board body (1), and a No. 2 connecting block (3) is fixedly connected to the top of the other side of the insulation board body (1); a clamping groove (4) is provided on the top of the No. 1 connecting block (2), and a No. 1 through groove (5) is provided inside the No. 1 connecting block (2); a nut (6) is fixedly connected inside the No. 1 through groove (5); a clamping block (7) is fixedly connected to the bottom of the No. 2 connecting block (3), and a No. 2 through groove (8) is provided inside the No. 2 connecting block (3), and a bolt (9) is provided inside the No. 2 through groove (8).

2. The polyurethane composite thermal insulation board with good flame retardant effect according to claim 1, characterized in that: The material of the outer frame (11) is polyurethane material, and the material of the heat insulation layer (13) is glass fiber material.

3. The polyurethane composite thermal insulation board with good flame retardant effect according to claim 1, characterized in that: The No. 1 connection block (2) and the No. 2 connection block (3) are of equal size, the number of the card slots (4) is two, and the No. 1 through slot (5) is located between the two card slots (4).

4. The polyurethane composite thermal insulation board with good flame retardant effect according to claim 1, characterized in that: The number of the clamping blocks (7) is two, and the No. 2 through slot (8) is located between the two clamping blocks (7).

5. The polyurethane composite thermal insulation board with good flame retardant effect according to claim 1, characterized in that: The bolt (9) is movably sleeved inside the No. 2 through groove (8), and the external thread on the outside of the bolt (9) is matched with the internal thread on the inside of the nut (6).

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