High-flame-retardant polyurethane cold storage plate

Abstract

The utility model relates to the technical field of polyurethane cold storage plates, in particular to a high-flame-retardant polyurethane cold storage plate which comprises a cold storage plate body, an interlayer and two middle plates, the interlayer is fixedly installed in the cold storage plate body, and the two middle plates are fixedly installed on the two sides in the cold storage plate body. A polyurethane flame-retardant reinforcing structure is arranged on the inner side of the cold storage plate body, and a cold storage plate clamping structure is arranged on one side of the cold storage plate body. According to the high-flame-retardant polyurethane cold storage plate, the corrugated plate is made of an aluminum alloy plate with a certain bending curve, the corrugated plate is installed on the inner side of the polyurethane layer through uniform corrugated arcs, and the flame-retardant layer is made of a rock wool plate, so that the dangerous situation that flammable polyurethane materials are ignited by open fire can be effectively reduced; the fireproof, bending-resistant and tensile properties of the original polyurethane cold storage plate are improved by utilizing various modes of the flame-retardant layer, the corrugated plate and the inclined support, so that the flame-retardant property and the strength of the high-flame-retardant polyurethane cold storage plate are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of polyurethane cold storage panels, in particular to a high flame-retardant polyurethane cold storage panel. Background Art

[0002] In order to achieve the refrigeration effect, the construction costs of ordinary cold storages and refrigeration rooms are relatively high, but they are not energy-saving, and the heat preservation effect is not very ideal. At present, the world is advocating low-carbon environmental protection and energy conservation. Therefore, it is necessary to improve the building material technology to achieve the purpose of energy conservation.

[0003] For example, the polyurethane cold storage panel with the publication number "CN205502372U" has a better connection with the card slot through the buckle in the shape of π or arrow, good sealing performance, can prevent cold air leakage, effectively ensures the heat preservation effect of the cold storage and refrigeration room, is simple in construction and installation, and saves energy for users. However, for the existing polyurethane cold storage panel, since the internal heat preservation layer structure of the polyurethane cold storage panel is mainly made of polyurethane material, although the polyurethane material has relatively good heat preservation performance, it is relatively flammable. Therefore, the requirements for fire prevention and flame retardancy of the workshops and cold storage structures using polyurethane cold storage panels are relatively high. In addition, the polyurethane material used in the polyurethane cold storage panel has a certain elasticity and is prone to deformation under force. The polyurethane cold storage panel needs to be fixedly arranged on the cold storage wall of the workshop to achieve the function of protection and heat insulation. However, this also requires the polyurethane cold storage panel itself to have a certain bearing capacity. Therefore, the flame retardancy and strength of the current polyurethane cold storage panel are somewhat insufficient.

[0004] At the same time, for the existing polyurethane cold storage panel, since the arrow-shaped buckle on one side outer wall is used to dock with the inner side of the card slot on the outer wall of another polyurethane cold storage panel to achieve the connection effect, but the front end of the arrow-shaped buckle is large and the rear end is small, and the relatively slender arrow bottom end needs to bear a large lateral pulling force and connection force. After a long time of use, the relatively slender arrow bottom end of the arrow-shaped buckle is prone to deformation and aging due to stretching, reducing the connection tightness of two adjacent polyurethane cold storage panels, generating certain gaps at the connection, and finally resulting in a decrease in heat preservation performance at the gaps, affecting the working effect of the polyurethane cold storage panel. Summary of the Utility Model

[0005] The purpose of the present utility model is to solve the problems of relatively low flame retardant strength performance and poor working effect of the polyurethane cold storage panel, and to propose a high flame-retardant polyurethane cold storage panel.

[0006] To achieve the above purpose, the present utility model provides the following technical solutions:

[0007] Design a highly flame-retardant polyurethane cold storage board, including a cold storage board body, an interlayer and an intermediate board. The interlayer is fixedly installed inside the cold storage board body, and the two intermediate boards are fixedly installed on both sides inside the cold storage board body. A polyurethane flame-retardant strengthening structure is provided on the inner side of the cold storage board body, a cold storage board clamping structure is provided on one side of the cold storage board body, and a cold storage board splicing structure is provided on the other side of the cold storage board body.

[0008] Preferably, the polyurethane flame-retardant strengthening structure includes a flame-retardant layer and a polyurethane layer. The two flame-retardant layers are fixedly installed on both sides inside the cold storage board body. A corrugated board is fixedly connected inside the two polyurethane layers. A plurality of weight-reducing strips are fixedly installed on the inner sides of the two polyurethane layers, and a plurality of diagonal braces are fixedly installed on the inner sides of the two polyurethane layers.

[0009] Preferably, the plurality of diagonal braces are arranged parallel to each other at equal distances. The outer side of the polyurethane layer is fixedly connected to the inner wall of the intermediate board, the inner sides of the two flame-retardant layers are fixedly connected to the outer wall of the intermediate board, and the side walls of the plurality of diagonal braces are fixedly connected to the outer side of the interlayer.

[0010] Preferably, the cold storage board clamping structure includes a concave block and a clamping board. The two concave blocks are fixedly connected to one end of the outer wall of the cold storage board body. A clamping board is fixedly installed inside the two concave blocks, and a plurality of convex blocks are fixedly connected to the front end of the clamping board.

[0011] Preferably, the cold storage board splicing structure includes a side board and a bite seat. The side board is fixedly installed at the other end of the side wall of the cold storage board body. A splicing groove is fixedly opened at the front end of the side board, and a bite seat is fixedly installed inside the splicing groove. A plurality of reserved grooves are fixedly opened inside the bite seat.

[0012] Preferably, the outer walls of the two concave blocks are movably connected to the outer side of the splicing groove, a plurality of convex blocks are movably clamped inside the plurality of reserved grooves, and the outer side of the clamping board is movably connected to the outer wall of the bite seat.

[0013] The beneficial effects of a highly flame-retardant polyurethane cold storage board proposed by the present utility model are as follows: The corrugated board is made of an aluminum alloy plate with a certain bending curve. The corrugated board is installed inside the polyurethane layer through uniform corrugated arcs, which can improve the bending and tensile resistance of the polyurethane layer itself. The flame-retardant layer is made of a rock wool board, which can effectively reduce the risk of ignition of the flammable polyurethane material by an open flame. The flame-retardant layer, corrugated board and diagonal braces are used in various ways to improve the fire resistance, bending and tensile resistance of the original polyurethane cold storage board, thereby improving the flame-retardant performance and strength of the highly flame-retardant polyurethane cold storage board.

[0014] The internal space of the splicing groove can be fitted and fixed with the outer side of the concave block. After the concave block is inserted into the inner side of the splicing groove, multiple convex blocks will be sequentially inserted into the reserved grooves at corresponding positions. At the same time, the engaging seat is designed as an inverted trapezoid, and the inverted trapezoidal engaging seat can be vertically snapped into the inner side of the concave block with a shape matching its own. Through the mutual clamping and splicing of the mortise and tenon structures at both ends of the polyurethane cold storage board, the installation can be completed, reducing the problem of gaps at the joints of the two adjacent polyurethane cold storage board bodies and improving the working effect of the high flame-retardant polyurethane cold storage board. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional schematic diagram of the present utility model;

[0016] Figure 2 is Figure 1 front cross-sectional schematic diagram of

[0017] Figure 3 is Figure 1 side cross-sectional schematic diagram of

[0018] Figure 4 is Figure 2 enlarged cross-sectional view of part A in

[0019] Figure 5 is Figure 2 enlarged cross-sectional view of part B in

[0020] Figure 6 is Figure 2 enlarged cross-sectional view of part C in

[0021] In the figure: 1, cold storage board body; 2, interlayer; 3, intermediate board; 4, polyurethane flame-retardant strengthening structure; 41, flame-retardant layer; 42, polyurethane layer; 43, corrugated board; 44, weight-reducing strip; 45, diagonal brace; 5, cold storage board clamping structure; 51, concave block; 52, clamping board; 53, convex block; 6, cold storage board splicing structure; 61, side board; 62, splicing groove; 63, engaging seat; 64, reserved groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The present utility model will be further described below with reference to the accompanying drawings:

[0023] Embodiment 1:

[0024] Please refer to Figures 1-6: In this embodiment, a highly flame-retardant polyurethane cold storage board includes a cold storage board body 1, an interlayer 2, and an intermediate board 3. The interlayer 2 is fixedly installed inside the cold storage board body 1. The interlayer 2 is made of thickened aluminum plate material and vertically penetrates inside the cold storage board body 1 to improve the firmness and impact resistance of the overall cold storage board. Two intermediate boards 3 are fixedly installed on both sides inside the cold storage board body 1. The cold storage board body 1 is made of relatively thin metal aluminum plate material. The cold storage board body 1 is internally filled with polyurethane material to form a polyurethane cold storage board. A polyurethane flame-retardant strengthening structure 4 is provided on the inner side of the cold storage board body 1. A cold storage board clamping structure 5 is provided on one side of the cold storage board body 1, and a cold storage board splicing structure 6 is provided on the other side of the cold storage board body 1.

[0025] The polyurethane flame-retardant strengthening structure 4 includes a flame-retardant layer 41 and a polyurethane layer 42. Two flame-retardant layers 41 are fixedly installed on both sides inside the cold storage board body 1. The polyurethane layer 42 is filled with high-strength polyurethane material inside the two intermediate boards 3. Thus, the polyurethane layer 42 fully fills the inside of the entire polyurethane cold storage board body 1. A corrugated board 43 is fixedly connected inside the two polyurethane layers 42. The corrugated board 43 is made of aluminum alloy plate with a certain bending curve. The corrugated board 43 is installed inside the polyurethane layer 42 through uniform corrugated arcs, which can improve the bending and tensile resistance of the polyurethane layer 42 itself. A plurality of weight-reducing strips 44 are fixedly installed on the inner side of the two polyurethane layers 42. The weight-reducing strips 44 are cavities opened on the inner side of the polyurethane layer 42. The setting of the cavities can reduce the weight of the polyurethane layer 42 itself with the least impact on the structure of the polyurethane layer 42, making it convenient to handle and install the polyurethane cold storage board.

[0026] A plurality of diagonal braces 45 are fixedly installed on the inner side of the two polyurethane layers 42. The diagonal braces 45 are made of the same material aluminum alloy as the intermediate board 3. The plurality of diagonal braces 45 are obliquely installed between the two polyurethane layers 42 on both sides at an angle of thirty degrees. The diagonal braces 45 support the polyurethane layer 42, reducing the occurrence of deformation and bending caused by pressure. The plurality of diagonal braces 45 are arranged parallel and equidistant from each other. The outer side of the polyurethane layer 42 is fixedly connected to the inner wall of the intermediate board 3. The inner side of the two flame-retardant layers 41 is fixedly connected to the outer wall of the intermediate board 3. The flame-retardant layer 41 is made of rock wool board. The flame-retardant layer 41 is filled and installed between the cold storage board body 1 and the internal intermediate board 3. The outermost flame-retardant layer 41 has good flame-retardant performance, which can effectively reduce the risk of the flammable polyurethane material being ignited by an open flame. The side walls of the plurality of diagonal braces 45 are fixedly connected to the outer side of the interlayer 2;

[0027] The high-strength polyurethane material is filled inside the two middle plates 3 through the polyurethane layer 42, and then the polyurethane layer 42 fully fills the interior of the entire polyurethane cold storage board body 1. The corrugated board 43 is made of an aluminum alloy plate with a certain bending curve. The corrugated board 43 is installed inside the polyurethane layer 42 through uniform corrugated arcs, which can improve the bending and tensile resistance of the polyurethane layer 42 itself. The weight reduction strip 44 is a cavity opened inside the polyurethane layer 42. The setting of the cavity can reduce the weight of the polyurethane layer 42 itself without affecting the structure of the polyurethane layer 42 the most, so that the polyurethane cold storage board can be easily handled and installed. The diagonal brace 45 is made of the same material aluminum alloy as the middle plate 3.

[0028] A plurality of diagonal braces 45 are obliquely installed between the two polyurethane layers 42 at an angle of thirty degrees. The diagonal braces 45 support the polyurethane layer 42, reducing the occurrence of deformation and bending caused by pressure. The flame retardant layer 41 is made of rock wool board. The flame retardant layer 41 is filled and installed between the cold storage board body 1 and the internal middle plate 3. The outermost flame retardant layer 41 has good flame retardant performance, which can effectively reduce the dangerous situation of the flammable polyurethane material being ignited by an open flame. By using multiple methods such as the flame retardant layer, the corrugated board 43 and the diagonal brace 45 to improve the fire resistance, bending and tensile resistance of the original polyurethane cold storage board, the flame retardant performance and strength of the high flame retardant polyurethane cold storage board are improved.

[0029] The clamping structure 5 of the cold storage board includes concave blocks 51 and clamping plates 52. Two concave blocks 51 are fixedly connected to one end of the outer wall of the board body 1 of the cold storage board. A clamping plate 52 is fixedly installed inside the two concave blocks 51. A plurality of convex blocks 53 are fixedly connected to the front end of the clamping plate 52. The splicing structure 6 of the cold storage board includes a side plate 61 and a clamping seat 63. The side plate 61 is fixedly installed at the other end of the side wall of the board body 1 of the cold storage board. A splicing groove 62 is fixedly opened at the front end of the side plate 61. The side plate 61 serves to support the outer splicing groove 62. The splicing groove 62 is designed as a structure that extends a certain distance at both ends. The internal space of the splicing groove 62 can be spliced and fixed with the outer side of the concave block 51. A clamping seat 63 is fixedly installed inside the splicing groove 62. A plurality of reserved grooves 64 are fixedly opened inside the clamping seat 63. After the concave block 51 is inserted into the inner side of the splicing groove 62, a plurality of convex blocks 53 will be inserted into the corresponding reserved grooves 64 in sequence. The outer wall of the convex block 53 is spliced by the friction force provided inside the reserved groove 64. At the same time, the clamping seat 63 is designed as an inverted trapezoid. The inverted trapezoidal clamping seat 63 can be vertically inserted into the inner side of the concave block 51 with a shape matching its own. In this way, the work of bolts is not required. The installation can be completed by the mutual clamping and splicing of the mortise and tenon structures at both ends of the polyurethane cold storage board, reducing the structure where the slender arrow-shaped blocks are prone to tensile deformation, reducing the problem of gaps at the joints of two adjacent polyurethane cold storage board body 1, the outer walls of the two concave blocks 51 are movably connected to the outer side of the splicing groove 62, a plurality of convex blocks 53 are movably clamped inside a plurality of reserved grooves 64, and the outer side of the clamping plate 52 is movably connected to the outer wall of the clamping seat 63;

[0030] By the side plate 61 serving to support the outer splicing groove 62, the splicing groove 62 is designed as a structure that extends a certain distance at both ends. The internal space of the splicing groove 62 can be spliced and fixed with the outer side of the concave block 51. After the concave block 51 is inserted into the inner side of the splicing groove 62, a plurality of convex blocks 53 will be inserted into the corresponding reserved grooves 64 in sequence. The outer wall of the convex block 53 is spliced by the friction force provided inside the reserved groove 64. At the same time, the clamping seat 63 is designed as an inverted trapezoid. The inverted trapezoidal clamping seat 63 can be vertically inserted into the inner side of the concave block 51 with a shape matching its own. In this way, the work of bolts is not required. The installation can be completed by the mutual clamping and splicing of the mortise and tenon structures at both ends of the polyurethane cold storage board, reducing the structure where the slender arrow-shaped blocks are prone to tensile deformation, reducing the problem of gaps at the joints of two adjacent polyurethane cold storage board body 1, and improving the working effect of the high flame-retardant polyurethane cold storage board.

[0031] Working principle:

[0032] When installing the high flame-retardant polyurethane cold storage board on the cold storage wall surface of a workshop or a production plant, the flame-retardant performance and high-strength structure of the cold storage polyurethane cold storage board can be improved through the high flame-retardant polyurethane cold storage board;

[0033] The interlayer 2 is made of thickened aluminum plate material. The interlayer 2 vertically penetrates inside the cold storage board body 1. By means of the interlayer 2, the firmness and impact resistance of the overall cold storage board are improved. Two intermediate boards 3 are fixedly installed on both sides inside the cold storage board body 1. The cold storage board body 1 is made of relatively thin metal aluminum plate material. The cold storage board body 1 is internally filled with polyurethane material to form a polyurethane cold storage board.

[0034] High-strength structure of high flame-retardant polyurethane cold storage board:

[0035] The polyurethane layer 42 is filled with high-strength polyurethane material inside the two intermediate boards 3. Then, the polyurethane layer 42 fully fills the inside of the entire polyurethane cold storage board body 1. The corrugated board 43 is made of aluminum alloy plate with a certain bending curve. The corrugated board 43 is installed inside the polyurethane layer 42 through uniform corrugated arcs, which can improve the bending and tensile resistance of the polyurethane layer 42 itself. The weight-reducing strip 44 is a cavity opened inside the polyurethane layer 42. The setting of the cavity can reduce the weight of the polyurethane layer 42 itself without affecting the structure of the polyurethane layer 42 the most, so that the polyurethane cold storage board can be easily transported and installed.

[0036] Flame-retardant strengthening structure of high flame-retardant polyurethane cold storage board:

[0037] The diagonal strut 45 is made of aluminum alloy of the same material as the intermediate board 3. A plurality of diagonal struts 45 are obliquely installed between the two polyurethane layers 42 at an angle of thirty degrees. The diagonal strut 45 supports the polyurethane layer 42, reducing the occurrence of deformation and bending caused by pressure. The flame-retardant layer 41 is made of rock wool board. The flame-retardant layer 41 is filled and installed between the cold storage board body 1 and the internal intermediate board 3. The outermost flame-retardant layer 41 has good flame-retardant performance, which can effectively reduce the risk of the flammable polyurethane material being ignited by an open flame.

[0038] Installation and splicing structure of high flame-retardant polyurethane cold storage board:

[0039] The side plate 61 serves to support the outer splicing groove 62. The splicing groove 62 is designed as a structure with a certain extension at both ends. Through the internal space of the splicing groove 62, it can be spliced and fixed with the outside of the concave block 51. After the concave block 51 is inserted into the inside of the splicing groove 62, a plurality of convex blocks 53 will be inserted into the reserved grooves 64 at corresponding positions in turn. The splicing is carried out through the friction force provided inside the reserved groove 64 and the outer wall of the convex block 53. At the same time, the bite seat 63 is designed as an inverted trapezoid. The inverted trapezoidal bite seat 63 can be vertically clamped into the inside of the concave block 51 with a shape matching its own. In this way, without the work of bolts, the installation can be completed by the mutual clamping and splicing of the tenon and mortise structures at both ends of the polyurethane cold storage board.

[0040] Although the present utility model has been illustrated and described with reference to the preferred embodiments, those of ordinary skill in the art should understand that various changes in form and detail may be made within the scope of the claims.

Claims

1. A highly flame-retardant polyurethane cold storage board, comprising a cold storage board body (1), an interlayer (2) and an intermediate board (3), wherein the interlayer (2) is fixedly installed inside the cold storage board body (1), and the two intermediate boards (3) are fixedly installed on both sides inside the cold storage board body (1), and it is characterized in that: The inner side of the cold storage board body (1) is provided with a polyurethane flame-retardant strengthening structure (4), one side of the cold storage board body (1) is provided with a cold storage board clamping structure (5), the other side of the cold storage board body (1) is provided with a cold storage board splicing structure (6), the polyurethane flame-retardant strengthening structure (4) includes a flame-retardant layer (41) and a polyurethane layer (42), the two flame-retardant layers (41) are fixedly installed on both sides inside the cold storage board body (1), a corrugated board (43) is fixedly connected inside the two polyurethane layers (42), a plurality of weight-reducing strips (44) are fixedly installed on the inner sides of the two polyurethane layers (42), and a plurality of diagonal braces (45) are fixedly installed on the inner sides of the two polyurethane layers (42).

2. A highly flame-retardant polyurethane cold storage board according to claim 1, characterized in that: The plurality of diagonal braces (45) are arranged parallel to each other at equal distances, the outer side of the polyurethane layer (42) is fixedly connected to the inner wall of the middle plate (3), the inner sides of the two flame-retardant layers (41) are fixedly connected to the outer wall of the middle plate (3), and the side walls of the plurality of diagonal braces (45) are fixedly connected to the outer side of the sandwich layer (2).

3. The highly flame-retardant polyurethane cold storage board according to claim 2, characterized in that: The cold storage board clamping structure (5) includes a concave block (51) and a clamping plate (52), the two concave blocks (51) are fixedly connected to one end of the outer wall of the cold storage board body (1), a clamping plate (52) is fixedly installed inside the two concave blocks (51), and a plurality of convex blocks (53) are fixedly connected to the front end of the clamping plate (52).

4. A highly flame-retardant polyurethane cold storage panel according to claim 3, characterized in that: The cold storage board splicing structure (6) includes a side plate (61) and a clamping seat (63), the side plate (61) is fixedly installed at the other end of the side wall of the cold storage board body (1), a splicing groove (62) is fixedly opened at the front end of the side plate (61), a clamping seat (63) is fixedly installed inside the splicing groove (62), and a plurality of reserved grooves (64) are fixedly opened inside the clamping seat (63).

5. A highly flame-retardant polyurethane cold storage panel according to claim 4, characterized in that: The outer walls of the two concave blocks (51) are movably connected to the outer side of the splicing groove (62), the plurality of convex blocks (53) are movably clamped inside the plurality of reserved grooves (64), and the outer side of the clamping plate (52) is movably connected to the outer wall of the clamping seat (63).

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