Sealed fireproof door observation window structure

Abstract

The utility model discloses a sealing type fireproof door observation window structure which comprises a door frame and a water spraying assembly, a door body is hinged to the surface of the door frame, an observation window is arranged on the surface of the door body, the water spraying assembly is arranged on the surface of the door frame and provided with a water collecting box, the water collecting box is arranged in the door frame, and a water pump is arranged in the water collecting box. A water spraying pipe is arranged on the surface of the door frame, when the temperature of the door body on fire is too high, a water pump is started to pump water in a water collecting box into the water spraying pipe, the water is sprayed out from a plurality of water spraying heads on the surface of the water spraying pipe, the surface of the door body is cooled, a fire source near the door body is extinguished, and the door body is cooled through the sprayed water; the problem that the door body is integrally extruded and deformed due to high-temperature expansion is avoided, smoke particles pumped into the ventilation groove are filtered through the filter screen plate, impurities are prevented from entering the ventilation groove, smoke near the door body is pumped away through the fan, and therefore the problem of smoke leakage is avoided as much as possible.

Description

Technical Field

[0001] The utility model belongs to the technical field of fireproof doors, and in particular relates to a sealed fireproof door observation window structure. Background Art

[0002] A fire door is a door that can meet the requirements of fire resistance and thermal insulation within a certain period of time. It is usually installed between fire compartments and in evacuation stairwells. Fire doors usually have sealed observation windows to facilitate observation of fire conditions inside the room.

[0003] Existing fire doors include a mounting plate, one side of which is hinged to the door body through a hinge, and a multi-layer metal shell is installed on the surface of the door body. When a fire occurs, it can isolate the fire source and play a fire prevention effect. However, when a multi-layer fire door is used in a fire, it is easy for the door body to expand due to high temperature, causing the entire door body to be squeezed and deformed, thereby causing the entire fire door to be damaged due to excessive fire, making it easy for smoke to penetrate from the gaps in the damaged and deformed door body, resulting in poor fire prevention performance. Utility Model Content

[0004] The utility model aims to provide a sealed fire door observation window structure to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a sealed fire door observation window structure, comprising:

[0006] A door frame, a door body is hingedly connected to the surface of the door frame, and an observation window is provided on the surface of the door body;

[0007] A water spray assembly is arranged on the surface of the door frame, the water spray assembly is provided with a water collecting box, the water collecting box is arranged in the door frame, a water pump is arranged in the water collecting box, a water spray pipe is arranged on the surface of the door frame, the water outlet end of the water pump is connected to the water spray pipe, a plurality of water spray heads are arranged on the surface of the water spray pipe, and a water inlet pipe is arranged on one side of the water collecting box.

[0008] Preferably, a ventilation groove is provided on the top of the door frame, a filter plate is provided on the surface of the door frame and on one side of the ventilation groove, a fan is provided in the ventilation groove and a connecting pipe is provided at the air outlet end of the fan, so that the smoke extracted from the air outlet end of the fan can be discharged into the exhaust pipe through the connecting pipe and discharged to the outside through the exhaust pipe.

[0009] Preferably, a sealing assembly is provided at the bottom of the door frame, the sealing assembly comprises a sealing cylinder and a sliding block, and a movable groove is provided at the bottom of the door frame.

[0010] Preferably, the sealing cylinder is slidably connected in the movable groove, the sliding block is provided with two groups and is respectively fixedly connected to two sides of the sealing cylinder, and two groups of guide grooves are provided on both sides of the door frame.

[0011] Preferably, a short rod is fixedly connected in the guide groove, and the sliding block passes through the guide groove and is slidably sleeved on the surface of the short rod. A spring is sleeved on the surface of the short rod, and both ends of the spring are fixedly connected to the sliding block and the door frame respectively.

[0012] Preferably, one side of the short rod is rotatably connected to a roller, and the other end of the roller is rollingly connected to the door frame.

[0013] Preferably, a sealing groove is provided at the bottom of the door body, and a sealing gasket is provided in the sealing groove, so that the sealing performance between the sealing cylinder and the sealing groove can be enhanced by the sealing gasket.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] By installing one side of the door frame surface with a water spray assembly at a position where the fire source needs to be isolated, when the temperature of the burning door body is too high, the water pump starts to pump the water in the water collection box into the water spray pipe, and sprays it out from several water spray heads on the surface of the water spray pipe, thereby cooling the door body surface and extinguishing the fire source near the door body. The door body is cooled by the sprayed water, thereby avoiding the problem of overall extrusion and deformation of the door body due to high-temperature expansion.

[0016] By connecting the connecting pipe to the indoor exhaust pipe in advance and starting the fan, the fan will draw the smoke near the door into the ventilation slot, and filter the smoke particles drawn into the ventilation slot through the filter plate to prevent debris from entering the ventilation slot. The smoke near the door will be drawn away by the fan, thereby avoiding the problem of smoke leakage as much as possible.

[0017] When the door body and the door frame are closed, when the arc-shaped sealing groove at the bottom of the door body contacts the sealing cylinder at the bottom of the door frame, the sealing cylinder moves into the movable groove, and while moving, the sealing cylinder slides on the surface of the short rod through the slider and compresses the spring. When the sealing cylinder is completely in contact with the arc-shaped sealing groove at the bottom of the door body, the spring rebounds and drives the sealing cylinder to move in the direction close to the sealing groove, and contacts closely with the sealing groove and seals the gap between the sealing cylinder and the sealing groove through the rubber sealing gasket at the bottom of the sealing groove, thereby reducing the gap between the sealing cylinder and the sealing groove and preventing smoke from seeping out of the gap between the door frame and the bottom of the door body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a side view of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the sealing cylinder of the utility model;

[0021] Figure 4 For this utility model Figure 2 Schematic diagram of the structure enlarged at point A in the middle.

[0022] In the figure: 1. door frame; 2. door body; 3. observation window; 4. water spray assembly; 5. water collecting box; 6. water pump; 7. water spray pipe; 8. water spray head; 9. water inlet pipe; 10. ventilation slot; 11. filter screen; 12. fan; 13. connecting pipe; 15. sealing cylinder; 16. slider; 17. movable slot; 18. guide slot; 19. short rod; 20. spring; 21. roller; 22. sealing slot; 23. sealing gasket. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The utility model provides Figure 1-4 A sealed fire door observation window structure is shown, comprising:

[0025] A door frame 1, a door body 2 is hingedly connected to the surface of the door frame 1, and an observation window 3 is provided on the surface of the door body 2;

[0026] A water spray component 4 is arranged on the surface of the door frame 1. The water spray component 4 is provided with a water collecting box 5. The water collecting box 5 is arranged in the door frame 1. A water pump 6 is arranged in the water collecting box 5. A water spray pipe 7 is arranged on the surface of the door frame 1. The water outlet end of the water pump 6 is connected to the water spray pipe 7. A plurality of water spray heads 8 are arranged on the surface of the water spray pipe 7. A water inlet pipe 9 is arranged on one side of the water collecting box 5.

[0027] A ventilation slot 10 is provided on the top of the door frame 1, a filter screen 11 is provided on the surface of the door frame 1 and on one side of the ventilation slot 10, a fan 12 is provided in the ventilation slot 10 and a connecting pipe 13 is provided at the air outlet end of the fan 12, the connecting pipe 13 can be connected to the exhaust pipe in the room, so that when exhausting smoke, the drawn smoke can be discharged into the exhaust pipe through the connecting pipe 13 and discharged to the outside through the exhaust pipe.

[0028] A sealing assembly is provided at the bottom of the door frame 1 , and the sealing assembly includes a sealing cylinder 15 and a sliding block 16 . A movable groove 17 is provided at the bottom of the door frame 1 .

[0029] The sealing cylinder 15 is slidably connected in the movable groove 17, the sliding block 16 is provided with two groups and is fixedly connected to both sides of the sealing cylinder 15 respectively, two groups of guide grooves 18 are provided on both sides of the door frame 1, and a short rod 19 is fixedly connected in the guide groove 18. After the sliding block 16 passes through the guide groove 18, it is slidably sleeved on the surface of the short rod 19, and a spring 20 is sleeved on the surface of the short rod 19. The two ends of the spring 20 are respectively fixedly connected to the sliding block 16 and the door frame 1. When the sealing cylinder 15 contacts the sealing groove 22 at the bottom of the door body 2, the sealing cylinder 15 will be squeezed downward and the spring 20 will be compressed. When the sealing cylinder 15 is completely in contact with the sealing groove 22, the spring 20 rebounds, driving the sealing cylinder 15 to contact the sealing groove 22 for sealing.

[0030] One side of the short rod 19 is rotatably connected to a roller 21 and the other end of the roller 21 is rollingly connected to the door frame 1. The roller 21 can make the sealing cylinder 15 more flexible and convenient when moving through the slider 16, reducing the wear of the slider 16 and the short rod 19 when moving.

[0031] A sealing groove 22 is provided at the bottom of the door body 2, and a sealing gasket 23 is provided in the sealing groove 22. The sealing gasket 23 is an inorganic fiber sealing gasket with good fire resistance and high temperature resistance, which can prevent fire while ensuring sealing.

[0032] The sealed fire door observation window structure is achieved by installing one side of the door frame 1 with a water spray assembly 4 at a position where the fire source needs to be isolated, and connecting one end of the water inlet pipe 9 to an external water pipe to store water in the water collecting box 5. When a fire causes the temperature of the door body 2 to be too high, the water pump 6 is started to pump the water in the water collecting box 5 into the water spray pipe 7, and spray it out from a plurality of water spray heads 8 on the surface of the water spray pipe 7, thereby cooling the surface of the door body 2. At the same time, the fire source near the door body 2 can also be extinguished. The door body 2 is cooled by the sprayed water, which avoids the problem of the overall extrusion and deformation of the door body 2 due to the high-temperature expansion of the door body 2.

[0033] By connecting the connecting pipe 13 to the indoor exhaust pipe in advance and starting the fan 12, the fan 12 draws the smoke near the door body 2 into the ventilation slot 10, and filters the smoke particles drawn into the ventilation slot 10 through the filter plate 11 to prevent debris from entering the ventilation slot 10. The smoke near the door body 2 is drawn away by the fan 12, and then discharged into the exhaust pipe through the connecting pipe 13 at the air outlet end of the fan 12, and then discharged to the outside through the exhaust pipe, thereby avoiding the problem of smoke leakage as much as possible.

[0034] When the door body 2 and the door frame 1 are closed, when the arc-shaped sealing groove 22 at the bottom of the door body 2 contacts the sealing cylinder 15 at the bottom of the door frame 1, the sealing cylinder 15 moves into the movable groove 17. While moving, the sealing cylinder 15 slides on the surface of the short rod 19 through the slider 16 and compresses the spring 20. When the sealing cylinder 15 is completely in contact with the arc-shaped sealing groove 22 at the bottom of the door body 2, the spring 20 rebounds and drives the sealing cylinder 15 to move toward the direction close to the sealing groove 22, and contacts closely with the sealing groove 22 and seals the gap between the sealing cylinder 15 and the sealing groove 22 through the rubber sealing pad 23 at the bottom of the sealing groove 22, thereby reducing the gap between the sealing cylinder 15 and the sealing groove 22 and preventing smoke from seeping out of the gap at the bottom of the door frame 1 and the door body 2.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sealed fire door observation window structure, characterized in that: include: A door frame (1), a door body (2) being hingedly connected to a surface of the door frame (1), and an observation window (3) being provided on a surface of the door body (2); A water spray assembly (4), the water spray assembly (4) being arranged on the surface of the door frame (1), the water spray assembly (4) being provided with a water collecting box (5), the water collecting box (5) being arranged in the door frame (1), a water pump (6) being arranged in the water collecting box (5), a water spray pipe (7) being arranged on the surface of the door frame (1), a water outlet end of the water pump (6) being connected to the water spray pipe (7), a plurality of water spray heads (8) being arranged on the surface of the water spray pipe (7), and a water inlet pipe (9) being arranged on one side of the water collecting box (5); The top of the door frame (1) is provided with a ventilation slot (10), a filter screen (11) is provided on the surface of the door frame (1) and located on one side of the ventilation slot (10), a fan (12) is provided in the ventilation slot (10), and a connecting pipe (13) is provided at the air outlet end of the fan (12); A sealing assembly is provided at the bottom of the door frame (1), the sealing assembly comprising a sealing cylinder (15) and a sliding block (16); a movable groove (17) is provided at the bottom of the door frame (1); The sealing cylinder (15) is slidably connected in the movable groove (17), the sliding block (16) is provided with two groups and is respectively fixedly connected to two sides of the sealing cylinder (15), and two groups of guide grooves (18) are provided on both sides of the door frame (1); A short rod (19) is fixedly connected in the guide groove (18); the slider (16) passes through the guide groove (18) and then slides onto the surface of the short rod (19); a spring (20) is sleeved on the surface of the short rod (19); two ends of the spring (20) are respectively fixedly connected to the slider (16) and the door frame (1); One side of the short rod (19) is rotatably connected to a roller (21), and the other end of the roller (21) is rollingly connected to the door frame (1); A sealing groove (22) is provided at the bottom of the door body (2), and a sealing gasket (23) is provided in the sealing groove (22).

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