Fireproof safety door

Abstract

The invention relates to a safety door, in particular to a fireproof safety door which comprises a mounting frame, two sliding plates are slidably connected into the mounting frame, swing doors are hinged to the two sliding plates, two lifting supports are fixedly connected to the front side of the mounting frame, and a safety door body is arranged between the two lifting supports. A closing door is slidably connected into the safety door; a limiting frame is fixedly connected between the two lifting supports, and the safety door is slidably connected to the limiting frame. An expansion screw is mounted on the lifting bracket; two telescopic mechanisms I are fixedly connected to the mounting frame, and the telescopic ends of the two telescopic mechanisms I are fixedly connected to the two sliding plates correspondingly; and the fire can be isolated, and a certain fire extinguishing function is achieved.

Description

Technical Field

[0001] The present invention relates to a safety door, and more particularly to a fireproof safety door. Background Art

[0002] Fire safety doors are doors specially designed to block the spread of flames and smoke. They are usually made of fire-resistant materials and can provide effective isolation in the event of a fire, protecting escape routes or important areas. For example, patent publication number CN206617055U discloses a fire safety door that facilitates rapid evacuation of personnel. The fire safety door can greatly reduce the time required for the fire safety door to be fully opened in the event of a fire, facilitate rapid evacuation of personnel, and increase personnel safety. However, the disadvantage of the patent is that the safety door does not have a certain fire extinguishing function. Summary of the invention

[0003] The purpose of the present invention is to provide a fireproof safety door which can not only isolate the fire but also has a certain fire extinguishing function.

[0004] The purpose of the present invention is achieved through the following technical solutions:

[0005] A fireproof safety door comprises a mounting frame, wherein two sliding plates are slidably connected in the mounting frame, swing doors are hinged on the two sliding plates, two lifting brackets are fixedly connected to the front side of the mounting frame, a safety door is arranged between the two lifting brackets, and a closing door is slidably connected in the safety door;

[0006] A limit frame is fixedly connected between the two lifting brackets, and the safety door is slidably connected to the limit frame;

[0007] Expansion screws are installed on the lifting bracket;

[0008] The mounting frame is fixedly connected to two telescopic mechanisms I, and the telescopic ends of the two telescopic mechanisms I are respectively fixedly connected to the two sliding plates;

[0009] The lifting bracket is rotatably connected to a screw rod, the lifting bracket is slidably connected to a lifting seat, and the lifting seat is connected to the screw rod through threads;

[0010] The lifting bracket is fixedly connected to a power mechanism for driving the screw rod to rotate;

[0011] The lifting seat is fixedly connected with a telescopic mechanism II, and the telescopic ends of the two telescopic mechanisms II are fixedly connected to the safety door;

[0012] The safety door is provided with a plurality of spray holes I, and the closing door is provided with a plurality of spray holes II, and the spray holes I and the spray holes II can be misaligned or overlapped;

[0013] A liquid cavity is arranged on the closing door, a pressure plate is slidably connected in the liquid cavity, a compression spring II is fixedly connected between the pressure plate and the safety door, and a compression spring I is fixedly connected between the closing door and the safety door;

[0014] The closing door is provided with a connecting channel, the upper end of the connecting channel is communicated with the liquid cavity, the lower end of the connecting channel extends to the lower part of the closing door, and the lower end of the connecting channel is provided with a one-way valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0016] Figure 1 It is a schematic diagram of the structure of the fire safety door of the present invention;

[0017] Figure 2 It is a schematic diagram of the structure of the fire safety door of the present invention;

[0018] Figure 3 It is a schematic diagram of the installation frame structure of the present invention;

[0019] Figure 4 It is a schematic diagram of the swing door structure of the present invention;

[0020] Figure 5 It is a schematic diagram of the lifting seat structure of the present invention;

[0021] Figure 6 It is a schematic diagram of the safety door structure of the present invention;

[0022] Figure 7 It is a schematic diagram of the closed door structure of the present invention;

[0023] Figure 8 It is a schematic diagram of the internal structure of a closed door of the present invention.

[0024] In the figure: mounting frame 11; lifting bracket 12; limiting frame 13; expansion screw 14; telescopic mechanism I 21; sliding plate 22; swing door 23; screw rod 31; lifting seat 32; telescopic mechanism II 33; safety door 41; spray hole I 42; closing door 51; spray hole II 52; liquid chamber 53; pressure plate 54; connecting channel 55; one-way valve 56. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below with reference to the accompanying drawings.

[0026] like Figures 1 to 8 As shown, in order to achieve the technical effect of "not only isolating the fire, but also having a certain fire extinguishing function", the structure and function of a fire safety door are described in detail below;

[0027] A fireproof safety door, comprising a mounting frame 11, wherein two sliding plates 22 are slidably connected in the mounting frame 11, and swing doors 23 are hinged on the two sliding plates 22, and two lifting brackets 12 are fixedly connected to the front side of the mounting frame 11, and a safety door 41 is arranged between the two lifting brackets 12, and a closing door 51 is slidably connected in the safety door 41;

[0028] A limit frame 13 is fixedly connected between the two lifting brackets 12, and the safety door 41 is slidably connected to the limit frame 13;

[0029] An expansion screw 14 is installed on the lifting bracket 12;

[0030] The mounting frame 11 is fixedly connected to two telescopic mechanisms Ⅰ21, and the telescopic ends of the two telescopic mechanisms Ⅰ21 are respectively fixedly connected to two sliding plates 22;

[0031] The lifting bracket 12 is rotatably connected to a screw rod 31, and the lifting bracket 12 is slidably connected to a lifting seat 32, and the lifting seat 32 is connected to the screw rod 31 through threads;

[0032] The lifting bracket 12 is fixedly connected to a power mechanism for driving the screw rod 31 to rotate;

[0033] The lifting seat 32 is fixedly connected with a telescopic mechanism II 33, and the telescopic ends of the two telescopic mechanisms II 33 are fixedly connected to the safety door 41;

[0034] The safety door 41 is provided with a plurality of spray holes Ⅰ42, and the closing door 51 is provided with a plurality of spray holes Ⅱ52, and the spray holes Ⅰ42 and the spray holes Ⅱ52 can be misaligned or overlapped;

[0035] A liquid cavity 53 is arranged on the closing door 51, a pressure plate 54 is slidably connected in the liquid cavity 53, a compression spring II is fixedly connected between the pressure plate 54 and the safety door 41, and a compression spring I is fixedly connected between the closing door 51 and the safety door 41;

[0036] The closing door 51 is provided with a connecting channel 55, the upper end of the connecting channel 55 is connected to the liquid chamber 53, the lower end of the connecting channel 55 extends to the lower part of the closing door 51, and the lower end of the connecting channel 55 is provided with a one-way valve 56;

[0037] When using, Figure 1As shown, the installation of the lifting bracket 12 is completed by the expansion screw 14. Under normal use, that is, when fire protection is not required, the safety door 41 is raised. At this time, there are two working modes. The first is that the two swing doors 23 are all located in the installation frame 11, and the two swing doors 23 can be swung open. At this time, they can be used as normal doors. The second is that the two swing doors 23 are located on the side of the installation frame 11, so that there is a certain space between the two swing doors 23, thereby forming a passage, which is convenient for people to pass quickly.

[0038] The switching of these two working modes is to start the telescopic mechanism I21, which can be a hydraulic cylinder or an electric push rod. The telescopic end of the telescopic mechanism I21 drives the sliding plate 22 to move, and the sliding plate 22 drives the swing door 23 to move, so that the sliding plate 22 slides on the mounting frame 11, thereby adjusting the positions of the two swing doors 23. When the inner sides of the two swing doors 23 are close to each other, the two swing doors 23 are used as normal doors to complete opening and closing. When the two swing doors 23 are separated and a larger passage is formed between the two swing doors 23, it is convenient for people to pass quickly and complete fire evacuation.

[0039] Further, when it is necessary to separate the fire, the power mechanism is started, and the power mechanism is preferably a servo motor, and the output shaft of the power mechanism starts to rotate, and the output shaft of the power mechanism drives the screw rod 31 to rotate, and when the screw rod 31 rotates, the lifting seat 32 is driven to move through the thread, so that the lifting seat 32 slides on the lifting bracket 12, and then the height of the lifting seat 32 is adjusted, and the lifting seat 32 drives the safety door 41 to move, and then the height of the safety door 41 is adjusted, so that the safety door 41 moves downward, and the safety door 41 drives the closing door 51 to move downward;

[0040] The fire extinguishing liquid is placed in the liquid chamber 53 in advance. When the safety door 41 moves downward, the closing door 51 first contacts the ground and extends out of the safety door 41 by a certain length. The extending length of the closing door 51 is the relative distance between the spray hole I 42 and the spray hole II 52. Then, when the closing door 51 contacts the ground first, the closing door 51 moves upward under the push of the ground. The closing door 51 squeezes the compression spring II and the compression spring I. The compression spring II squeezes the pressure plate 54, so that the pressure plate 54 tends to move downward.

[0041] When the safety door 41 is in contact with the ground and separated, the closing door 51 is completely received in the safety door 41, the spray hole I 42 and the spray hole II 52 overlap, and the pressing plate 54 squeezes the liquid in the liquid cavity 53, so that the liquid in the liquid cavity 53 is quickly sprayed out from the spray hole I 42 and the spray hole II 52 to extinguish the fire;

[0042] Furthermore, the liquid chamber 53 can be reused. When the fire is controlled and the safety door 41 is to be reused, the pressure plate 54 is located at the lower side of the liquid chamber 53, and the fire extinguishing liquid is injected into the liquid chamber 53 through the connecting channel 55 via the one-way valve 56. At the same time, the safety door 41 moves upward, the safety door 41 is reset, and the fire extinguishing liquid is injected into the liquid chamber 53.

[0043] Furthermore, the one-way valve 56 is used to ensure that the fire extinguishing liquid can only enter the connecting channel 55 through the one-way valve 56 and cannot be discharged through the connecting channel 55.

Claims

1. A fire safety door, comprising a mounting frame (11), characterized in that: Two sliding plates (22) are slidably connected inside the installation frame (11), and swing doors (23) are hinged on the two sliding plates (22). Two lifting brackets (12) are fixedly connected to the front side of the installation frame (11), a safety door (41) is arranged between the two lifting brackets (12), and a closing door (51) is slidably connected inside the safety door (41).

2. A fire safety door according to claim 1, characterized in that: A limit frame (13) is fixedly connected between the two lifting brackets (12), and the safety door (41) is slidably connected to the limit frame (13).

3. A fire safety door according to claim 1, characterized in that: An expansion screw (14) is installed on the lifting bracket (12).

4. A fire safety door according to claim 1, characterized in that: Two telescopic mechanisms I (21) are fixedly connected to the installation frame (11), and the telescopic ends of the two telescopic mechanisms I (21) are respectively fixedly connected to two sliding plates (22).

5. A fire safety door according to claim 1, characterized in that: The lifting bracket (12) is rotatably connected to a screw rod (31), the lifting bracket (12) is slidably connected to a lifting seat (32), and the lifting seat (32) is connected to the screw rod (31) via threads.

6. A fire safety door according to claim 5, characterized in that: The lifting bracket (12) is fixedly connected to a power mechanism for driving the screw rod (31) to rotate.

7. A fire safety door according to claim 5, characterized in that: The lifting seat (32) is fixedly connected with a telescopic mechanism II (33), and the telescopic ends of the two telescopic mechanisms II (33) are fixedly connected to the safety door (41).

8. A fire safety door according to claim 1, characterized in that: The safety door (41) is provided with a plurality of spray holes I (42), and the closing door (51) is provided with a plurality of spray holes II (52). The spray holes I (42) and the spray holes II (52) can be misaligned or overlapped.

9. A fire safety door according to claim 1, characterized in that: A liquid cavity (53) is arranged on the closing door (51), a pressure plate (54) is slidably connected in the liquid cavity (53), a compression spring II is fixedly connected between the pressure plate (54) and the safety door (41), and a compression spring I is fixedly connected between the closing door (51) and the safety door (41).

10. A fire safety door according to claim 1, characterized in that: The closing door (51) is provided with a connecting channel (55), the upper end of the connecting channel (55) is connected to the liquid chamber (53), the lower end of the connecting channel (55) extends to the lower part of the closing door (51), and the lower end of the connecting channel (55) is provided with a one-way valve (56).

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