Heat-preservation flame-retardant suspended ceiling structure

Abstract

The utility model discloses a heat-preservation flame-retardant suspended ceiling structure, and relates to the technical field of suspended ceilings. According to the technical scheme, the suspended ceiling comprises a keel and a suspended ceiling plate detachably connected to the keel, a heat preservation cavity is formed in the top face of the suspended ceiling plate, a plurality of bearing plates arranged in an array mode are rotationally connected into the heat preservation cavity, and a plurality of fire extinguishing dry powder is placed on the top faces of the bearing plates; the inner wall of the heat preservation cavity is detachably connected with a limiting block through a connecting rope, and the limiting block abuts against the bottom face of the bearing plate when the limiting block is fixed into the heat preservation cavity. And the double-layer reflecting film is arranged in the ceiling board, has the closed and airtight characteristics and is not affected with damp and mildewed, the heat preservation and heat insulation effect is better than that of a traditional heat preservation board and heat insulation cotton, and the heat preservation performance of the ceiling board is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of suspended ceilings, and more specifically, to a heat-insulating and flame-retardant suspended ceiling structure. Background Art

[0002] A suspended ceiling refers to a kind of decoration for the top decoration of a house living environment. Simply put, it refers to the decoration of the ceiling and is one of the important parts of interior decoration.

[0003] The suspended ceiling has the functions of heat preservation, heat insulation, sound insulation, and sound absorption, and is also a concealed layer for projects such as electricity, ventilation and air conditioning, communication, fire prevention, and alarm pipeline equipment. The setting of the suspended ceiling can achieve stable shielding of circuit cables. During the use of the suspended ceiling, it is required to have the functions of heat preservation, heat insulation, sound insulation, and sound absorption. In some specific occasions, the suspended ceiling not only needs to meet the basic performance, but also needs to have flame-retardant performance to reduce the loss of property after a fire occurs.

[0004] Therefore, a new solution needs to be proposed to solve this problem. Summary of the Utility Model

[0005] Aiming at the deficiencies existing in the prior art, the purpose of the utility model is to provide a heat-insulating and flame-retardant suspended ceiling structure.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: a heat-insulating and flame-retardant suspended ceiling structure, including a keel and a suspended ceiling board detachably connected to the keel. A heat-insulation cavity is formed on the top surface of the suspended ceiling board. A number of receiving plates arranged in an array are rotatably connected in the heat-insulation cavity. A number of fire extinguishing dry powders are placed on the top surface of the receiving plates. A limiting block is detachably connected to the inner wall of the heat-insulation cavity through a connecting rope. When the limiting block is fixed in the heat-insulation cavity, the limiting block abuts against the bottom surface of the receiving plate.

[0007] The utility model is further arranged as follows: the connecting rope is a polyester rope, and the gravity of the limiting block close to the connecting rope is less than the gravity of the end away from the connecting rope.

[0008] The utility model is further arranged as follows: the inner wall of the heat-insulation cavity is recessed inward to form a fixing groove. The limiting block is detachably connected in the fixing groove, and the width of the limiting block located in the fixing groove is less than one-fourth of the part away from the fixing groove.

[0009] The utility model is further arranged as follows: an inclined guiding groove is formed on the bottom surface of the fixing groove close to the inner wall of the heat-insulation cavity, and the width of the guiding groove is less than half of the width of the bottom surface of the fixing groove.

[0010] The utility model is further arranged as follows: the side walls of adjacent receiving plates abut against each other, and the side wall of the receiving plate close to the heat-insulation cavity abuts against the inner wall of the heat-insulation cavity.

[0011] The utility model is further configured such that: a double-layer reflective film is fixedly connected to the inner bottom surface of the heat preservation cavity.

[0012] The utility model is further configured such that: a cover body for blocking fire extinguishing powder is fixedly connected to the top surface of the ceiling board.

[0013] To sum up, the utility model has the following beneficial effects:

[0014] When the temperature is relatively high or a fire breaks out, the connecting rope breaks, losing the pulling force on the limiting block. The limiting block drops under the action of gravity, and the limiting block disengages from the limitation of the bearing plate. The bearing plate rotates around the rotation axis, and the fire extinguishing powder above it slides down under the action of gravity to the ignition point to achieve the effect of extinguishing the flame. The several connecting ropes break due to the high temperature state. The fire extinguishing powder sliding into the heat preservation cavity can also block the transfer of heat, improving the heat preservation and flame retardant effect of the ceiling board. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural view of the utility model;

[0016] Figure 2 is a cross-sectional view of the ceiling board in the utility model Figure 1 ;

[0017] Figure 3 is Figure 2 an enlarged schematic view of part A in

[0018] Figure 4 is a cross-sectional view of the ceiling board in the utility model Figure 2 ;

[0019] Figure 5 is Figure 4 an enlarged schematic view of part B in

[0020] In the figure: 1, keel; 2, ceiling board; 3, heat preservation cavity; 4, bearing plate; 5, fire extinguishing powder; 6, limiting block; 7, connecting rope; 8, fixing groove; 9, cover body. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following combines the drawings and embodiments to describe the utility model in detail.

[0022] A heat preservation and flame retardant ceiling structure, as shown in Figure 1 、 Figure 3 and Figure 5As shown, it includes a keel 1 and a ceiling panel 2 detachably connected to the keel 1. The keel 1 is first installed in the building, and the ceiling panel 2 is installed and fixed on the keel 1. This installation method makes the ceiling smoother. An insulation cavity 3 is opened on the top surface of the ceiling panel 2. The opening of the insulation cavity 3 increases the air content in the ceiling panel 2. The heat conduction rate of the air is slow, which slows down the heat transfer rate and achieves the purpose of improving the insulation effect of the ceiling panel 2. A plurality of receiving plates 4 arranged in an array are rotatably connected in the insulation cavity 3. The side walls of adjacent receiving plates 4 abut against each other and the side walls of the receiving plates 4 close to the insulation cavity 3 abut against the inner wall of the insulation cavity 3. A plurality of fire extinguishing dry powders 5 are placed on the top surface of the receiving plate 4. A limit block 6 abutting against the bottom surface of the receiving plate 4 is detachably connected to the inner wall of the insulation cavity 3. The end of the limit block 6 away from the receiving plate 4 is connected to the insulation cavity 3 through a connecting rope 7.

[0023] like Figures 2 - 5 As shown, under normal conditions, a number of receiving plates 4 are placed horizontally in the heat preservation chamber 3, and a fire extinguishing dry powder 5 is placed on the top surface of the receiving plate 4. The fire extinguishing dry powder 5 is stored in a sealed bag. When the sealed bag is damaged in case of fire, the fire extinguishing dry powder 5 inside it is scattered at the fire point to extinguish the fire and control the spread of the fire. When the connecting rope 7 is pulled, the length direction of the limit block 6 is parallel to the bottom surface of the ceiling plate 2, and the limit block 6 is against the bottom surface of the receiving plate 4 close to the rotation axis. The limit block 6 blocks the rotation of the receiving plate 4, so that the receiving plate 4 is kept parallel to the ceiling plate 2 bottom surface, to achieve stable receiving of the fire extinguishing dry powder 5. When the temperature is high or a fire occurs, the connecting rope 7 breaks and loses the pulling force on the limit block 6. The limit block 6 falls under the action of gravity, and the limit block 6 is separated from the limit of the receiving plate 4. The receiving plate 4 rotates around the rotation axis, and the fire extinguishing dry powder 5 above it slides down to the fire point under gravity to extinguish the flame. Some connecting ropes 7 break under high temperature, and the fire extinguishing dry powder 5 slides into the heat preservation chamber 3, which can also block the heat transfer and improve the heat preservation and flame retardant effect of the ceiling panel 2.

[0024] like Figure 5 As shown, the connecting rope 7 is set to be a polyester rope. The ignition point of polyester rope is lower than that of nylon rope, and it can respond faster in high temperature or fire environment. The gravity of the limit block 6 close to the connecting rope 7 is less than the gravity of the end away from the connecting rope 7. The inner wall of the insulation chamber 3 is recessed inward to form a fixed groove 8. The limit block 6 is detachably connected to the fixed groove 8. The width of the limit block 6 located in the fixed groove 8 is less than one-fourth of the part away from the fixed groove 8. One end of the limit block 6 is inserted into the fixed groove 8 and is fixed in the fixed groove 8 under the pulling action of the connecting rope 7. Due to the setting of the length of the limit block 6, after the connecting rope 7 breaks and loses the pulling action on the limit block 6, the part of the limit block 6 away from the fixed groove 8 has a larger weight and slides down from the fixed groove 8 under the action of gravity, thereby losing the limit on the receiving plate 4, ensuring that the fire extinguishing dry powder 5 on the receiving plate 4 in a high temperature or fire environment can slide down stably.

[0025] As Figure 5 shown, an inclined guiding groove is formed on the bottom surface of the fixing groove 8 near the inner wall of the heat preservation cavity 3. The width of the guiding groove is less than half of the width of the bottom surface of the fixing groove 8. The guiding groove is inclined. After the end of the limiting block 6 close to the fixing groove 8 is fixedly lost, its end far from the fixing groove 8 first rotates downward, and then can stably slide down under the guidance of the guiding groove. At the same time, the length of the guiding groove is also limited. On the one hand, it avoids the reduction of the fixing effect of the fixing groove 8 on the limiting block 6 due to the too long guiding groove. On the other hand, it also avoids the guiding groove being too short to play a role in making way.

[0026] As Figure 2 、 Figure 4 and Figure 5 shown, a double-layer reflective film is bonded to the inner bottom surface of the heat preservation cavity 3. The double-layer reflective film has the characteristics of being airtight and moisture-proof, will not get damp and mildew, and has better heat preservation and heat insulation effects than traditional heat preservation boards and heat insulation cotton. A cover body 9 for shielding the fire extinguishing dry powder 5 is fixedly connected to the top surface of the ceiling board 2. The cover body 9 shields and protects the fire extinguishing dry powder 5 to reduce the influence of the external environment on the use of the fire extinguishing dry powder 5.

[0027] Working principle: When in a high-temperature or fire environment, the connecting rope 7 melts and breaks in the high-temperature environment, the pulling force of the connecting rope 7 on the limiting block 6 is lost, the limiting block 6 slides down from the fixing groove 8 under the action of gravity, and the bearing plate 4 also rotates around the rotating shaft under the action of gravity. The fire extinguishing dry powder 5 on the bearing plate 4 slides down from the gap formed by the rotation of the two symmetrically arranged bearing plates 4 and is sprinkled on the fire starting place to achieve the fire extinguishing effect.

[0028] The above is only the preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art in this technical field, several improvements and retouches made without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A heat-insulating and flame-retardant ceiling structure, comprising a keel (1) and a ceiling panel (2) detachably connected to the keel (1), characterized in that: The top surface of the ceiling panel (2) is provided with a heat preservation chamber (3), and a plurality of receiving plates (4) arranged in an array are rotatably connected in the heat preservation chamber (3), and a plurality of fire extinguishing dry powders (5) are placed on the top surface of the receiving plates (4). A limit block (6) is detachably connected to the inner wall of the heat preservation chamber (3) via a connecting rope (7), and when the limit block (6) is fixed in the heat preservation chamber (3), the limit block (6) abuts against the bottom surface of the receiving plate (4).

2. The thermal insulation and flame retardant ceiling structure according to claim 1, characterized in that: The connecting rope (7) is configured as a polyester rope, and the gravity of the limiting block (6) close to the connecting rope (7) is smaller than the gravity of the end thereof away from the connecting rope (7).

3. The thermal insulation and flame retardant ceiling structure according to claim 2, characterized in that: The inner wall of the heat preservation cavity (3) is recessed inward to form a fixing groove (8), the limiting block (6) is detachably connected in the fixing groove (8), and the width of the limiting block (6) in the fixing groove (8) is less than one quarter of the portion thereof away from the fixing groove (8).

4. The thermal insulation and flame retardant ceiling structure according to claim 3, characterized in that: The bottom surface of the fixing groove (8) close to the inner wall of the heat preservation cavity (3) is provided with an inclined guide groove, and the width of the guide groove is less than half the width of the bottom surface of the fixing groove (8).

5. The thermal insulation and flame retardant ceiling structure according to claim 2, characterized in that: The side walls of the adjacent receiving plates (4) abut against each other, and the side wall of the receiving plate (4) close to the heat preservation chamber (3) abuts against the inner wall of the heat preservation chamber (3).

6. The thermal insulation and flame retardant ceiling structure according to claim 5, characterized in that: A double-layer reflective film is fixedly connected to the inner bottom surface of the heat preservation cavity (3).

7. The thermal insulation and flame retardant ceiling structure according to claim 1, characterized in that: A cover body (9) for shielding the fire extinguishing dry powder (5) is fixedly connected to the top surface of the ceiling plate (2).

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