Steel fireproof door with good flame retardant effect

Abstract

The utility model discloses a steel fireproof door with good flame retardant effect, which comprises a door frame, a fireproof door body is symmetrically and rotatably connected in the door frame, a flame retardant mechanism is arranged at the top end of the door frame, a protection mechanism is arranged on one side of the fireproof door body, and the flame retardant mechanism comprises a support plate fixedly connected to the top end of the door frame. A fireproof high-temperature-resistant shell is fixedly connected to the top ends of the supporting plates, connecting pipes are fixedly connected to the interiors of the supporting plates, high-temperature-resistant atomizing nozzles are fixedly connected to the bottom ends of the connecting pipes, a water tank is fixedly connected to the interior of the fireproof high-temperature-resistant shell, and a hollow plate is fixedly connected to the interior of the bottom end of the fireproof high-temperature-resistant shell; and the water pump is installed between the hollow plate and the water tank, water mist sprayed by the high-temperature-resistant atomizing nozzles can reduce the temperature near the fireproof door body and slow down the fire spreading speed, so that the effective fireproof time of the fireproof door is prolonged, and the safety is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fireproof doors, in particular to a steel fireproof door with good flame retardant effect. Background Art

[0002] A steel fire door is a door with high fire resistance. Its main material is steel. In addition to the functions of ordinary doors, it also has the function of preventing the spread of fire and smoke.

[0003] Publication No. CN214117978U discloses a steel fire door with good sound insulation and heat insulation. The device performs double-layer insulation through the first insulation layer and the second insulation layer, which can effectively isolate heat and avoid burns when opening the door. Through the double-layer fireproof glass, the situation behind the door can be observed in time to avoid getting burned. It can also effectively block the fire and is safer to use. The first fireproof layer and the second fireproof layer make the fireproof door have two-way fireproofing, which effectively improves the fireproof performance of the fireproof door. However, the patent still has the following problems in actual use:

[0004] The device provides double insulation through the first insulation layer and the second insulation layer, which can effectively isolate heat and avoid burns when opening the door. However, when the fire in the fire area is large, the fire door is very likely to deform, making it difficult to open the fire door, thereby increasing the danger for people to escape.

[0005] A steel fireproof door with good flame retardant effect is proposed to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a steel fire door with good flame retardant effect, so as to solve the problem proposed in the above-mentioned background technology that double-layer insulation is currently performed by a first insulation layer and a second insulation layer, which can effectively isolate heat and avoid burns when opening the door, but when the fire in the fire area is large, the fire door is very likely to be deformed, making it difficult to open the fire door, thereby increasing the danger for people to escape.

[0007] To achieve the above object, the utility model provides the following technical solution: a steel fire door with good flame retardant effect, comprising a door frame, the interior of the door frame is symmetrically rotatably connected with a fire door body, the top of the door frame is provided with a flame retardant mechanism, and one side of the fire door body is provided with a protective mechanism;

[0008] Among them, the flame retardant mechanism includes a support plate fixedly connected to the top of the door frame, and the top of the support plate is fixedly connected with a fireproof and high-temperature resistant shell, and the inside of the support plate is fixedly connected with a connecting pipe, and the bottom end of the connecting pipe is fixedly connected with a high-temperature resistant atomizing nozzle, and the inside of the fireproof and high-temperature resistant shell is fixedly connected with a water tank, and the bottom end of the fireproof and high-temperature resistant shell is fixedly connected with a hollow plate, and a water pump is installed between the hollow plate and the water tank, and a connecting box is fixedly connected between the hollow plate and the connecting pipe, and a blocking block is snap-connected inside the top of the connecting box, and the bottom end of the blocking block is fixedly connected with a support rod, and sliding boxes are symmetrically fixedly connected inside the two sides of the connecting box, and both ends of the support rod penetrate the sliding box for sliding connection, and a first telescopic spring is fixedly connected between the two ends of the support rod and the sliding box.

[0009] Preferably, the protective mechanism includes a zirconia handle arranged on one side of the fire door body, and a socket is fixedly connected to one side of the fire door body, and one end of the zirconia handle is snap-fitted to the socket, and an installation box is fixedly connected to the inside of one end of the zirconia handle, and a screw is rotatably connected to the inside of the installation box, and a push block is threadedly connected to the outer wall of the screw, and an installation groove is symmetrically opened inside one end of the zirconia handle, and a push rod is slidably connected between the inside of the installation groove and the installation box, and a connecting plate is fixedly connected to one end of the push rod located inside the installation groove, and a second telescopic spring is symmetrically fixedly connected between one side of the connecting plate and the installation groove, and an insert block is symmetrically fixedly connected to one side of the connecting plate, and the insert block is snap-fitted and fixedly connected to the socket.

[0010] Preferably, the bottom end of the installation box is fixedly connected to a support block, and an insertion rod is slidably connected to the inside of the support block, and a retaining ring is fixedly connected to the outer wall of the insertion rod, and a third telescopic spring is fixedly connected between the retaining ring and the support block, and a slot is opened on one side of the bottom end of the screw rod, and one end of the insertion rod is snap-fitted and fixedly connected to the slot.

[0011] Preferably, one end of the zirconia handle is symmetrically fixedly connected to a limiting rod, and one end of the socket is provided with a limiting groove inside, and the limiting rod is slidably connected to the limiting groove.

[0012] Preferably, two sides of the push block are slidably connected to the interior of the installation box.

[0013] Preferably, the third telescopic spring is sleeved on the outer side wall of the insertion rod.

[0014] Preferably, the door frame, support plate and fireproof and high temperature resistant shell are all embedded in the wall.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: the steel fire door with good flame retardant effect is specifically as follows: by starting the water pump, the water in the water tank is transmitted to the inside of the hollow plate, and it is sprayed out through the high temperature resistant atomizing nozzle. The water mist sprayed by the high temperature resistant atomizing nozzle can reduce the temperature near the fire door body, slow down the spread of fire, thereby extending the effective fire prevention time of the fire door, and buying time for personnel evacuation and fire fighting, thereby giving people an extra layer of protection when escaping, greatly increasing safety, and through the contractility of the first telescopic spring, the blocking block and the connecting box are sealed in engagement, thereby effectively avoiding the phenomenon of residual water resources in the hollow plate dripping all the time, and the zirconia handle has a high high temperature resistance, thereby enabling the escapee to effectively reduce the probability of scalding when opening the fire door body, and by rotating the screw rod to drive the push block to move, the push block squeezes the push rod, thereby making the plug block and the socket engage and fix the connection, thereby facilitating the staff to quickly install and replace the damaged zirconia handle, bringing convenience to the staff when using it.

[0016] 1. By starting the water pump, the water in the water tank is transferred to the inside of the hollow board, and finally sprayed out through the high-temperature resistant atomizing nozzle. At this time, the fire door body sprays water mist from top to bottom. The water mist sprayed by the high-temperature resistant atomizing nozzle can reduce the temperature near the fire door body and slow down the spread of fire, thereby extending the effective fire prevention time of the fire door, buying time for personnel evacuation and fire fighting, thereby giving people an extra layer of protection when escaping and greatly increasing safety. When the high-temperature resistant atomizing nozzle stops spraying water, the shrinkage of the first telescopic spring makes the block and the connection box engage and seal, thereby effectively avoiding the phenomenon of residual water resources in the hollow board dripping all the time, which brings inconvenience to people;

[0017] 2. Through the design of the zirconia handle, zirconia has a higher high temperature resistance. Compared with other materials, zirconia will not become very hot at high temperatures, which can effectively reduce the probability of scalding when the escapee opens the fire door body, bringing convenience to people when using it. By rotating the screw rod to drive the push block to move, the push block squeezes the push rod. At this time, the connecting plate moves to stretch the second telescopic spring, thereby making the plug block and the socket engage and fix the connection, so that the staff can quickly install and replace the damaged zirconia handle, which brings convenience to the staff when using it. Through the contractility of the third telescopic spring, the plug rod and the slot are engaged and fixed, so that the adjusted screw rod can be fixed and limited, thereby improving the fixing stability of the zirconia handle. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2This is a schematic diagram of the overall structure of the flame retardant mechanism in the utility model;

[0020] Figure 3 It is a partial enlarged structural diagram of the flame retardant mechanism in the utility model;

[0021] Figure 4 It is an overall enlarged schematic diagram of the protective mechanism in the utility model from top view;

[0022] Figure 5 It is a partial top view and enlarged structural diagram of the protection mechanism in the utility model;

[0023] Figure 6 It is a schematic diagram of the enlarged structure of part A in the utility model.

[0024] In the figure: 1. door frame; 101. fire door body; 2. flame retardant mechanism; 201. support plate; 202. fireproof and high temperature resistant shell; 203. connecting pipe; 204. high temperature resistant atomizing nozzle; 205. water tank; 206. hollow plate; 207. water pump; 208. connecting box; 209. blocking block; 210. supporting rod; 211. sliding box; 212. first telescopic spring; 3. protective mechanism; 301. zirconia handle; 302. socket; 303. mounting box; 304. screw; 305. push block; 306. mounting groove; 307. push rod; 308. connecting plate; 309. second telescopic spring; 310. plug block; 311. supporting block; 312. plug rod; 313. retaining ring; 314. third telescopic spring; 315. slot; 316. limit rod; 317. limit groove. DETAILED DESCRIPTION

[0025] 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 implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0026] See also Figure 1-6 The utility model provides a technical solution: a steel fire door with good flame retardant effect, comprising a door frame 1, wherein a fire door body 101 is symmetrically rotated and connected inside the door frame 1; a flame retardant mechanism 2 is arranged at the top of the door frame 1, and a protective mechanism 3 is arranged on one side of the fire door body 101;

[0027] The flame retardant mechanism 2 includes a support plate 201 fixedly connected to the top of the door frame 1, and the top of the support plate 201 is fixedly connected to a fireproof and high temperature resistant shell 202, and the inside of the support plate 201 is fixedly connected to a connecting pipe 203, and the bottom end of the connecting pipe 203 is fixedly connected to a high temperature resistant atomizing nozzle 204, and the inside of the fireproof and high temperature resistant shell 202 is fixedly connected to a water tank 205, and the bottom end of the fireproof and high temperature resistant shell 202 is fixedly connected to a hollow plate 206, and the hollow plate 206 and the water tank 205 are fixedly connected. A water pump 207 is installed between the hollow plate 206 and the connecting pipe 203, and a connecting box 208 is fixedly connected between the hollow plate 206 and the connecting pipe 203, and a blocking block 209 is snap-connected to the top of the connecting box 208, and a support rod 210 is fixedly connected to the bottom of the blocking block 209, and sliding boxes 211 are symmetrically fixedly connected to the two sides of the connecting box 208, and the two ends of the support rod 210 penetrate the sliding box 211 for sliding connection, and a first telescopic spring 212 is fixedly connected between the two ends of the support rod 210 and the sliding box 211, which is durable. The water mist sprayed by the high temperature atomizing nozzle 204 can reduce the temperature near the fire door body 101, slow down the spread of fire, and thus extend the effective fire protection time of the fire door. The water mist can moisten the surface of the fire door body 101, making it less likely to be heated during a fire, thereby maintaining stability. The water mist can increase the humidity near the fire door body 101, which is conducive to reducing the smoke concentration near the fire door body 101 and improving the visibility of the evacuation passage. In the early stage of a fire, the water mist of the high temperature resistant atomizing nozzle 204 can quickly Suppress the fire source, reduce the fire, buy time for personnel evacuation and fire extinguishing, thereby giving people an extra layer of protection when escaping and greatly increasing safety. When the high-temperature resistant atomizing nozzle 204 stops spraying water, the first telescopic spring 212 shrinks, so that the block 209 and the connecting box 208 are sealed together, thereby effectively avoiding the phenomenon of residual water resources in the hollow plate 206 dripping all the time, causing inconvenience to people. The door frame 1, the support plate 201 and the fireproof and high-temperature resistant shell 202 are all embedded in the wall.

[0028] The protection mechanism 3 includes a zirconia handle 301 arranged on one side of the fire door body 101, and a socket 302 is fixedly connected to one side of the fire door body 101, and one end of the zirconia handle 301 is snap-connected to the socket 302, and an installation box 303 is fixedly connected to the inside of one end of the zirconia handle 301, and a screw 304 is rotatably connected to the inside of the installation box 303, and a push block 305 is threadedly connected to the outer wall of the screw 304, and both sides of the push block 305 are slidably connected to the inside of the installation box 303, and a mounting groove 306 is symmetrically opened inside one end of the zirconia handle 301, and the mounting groove 306 is symmetrically opened inside. A push rod 307 is slidably connected between the interior of the fire door and the installation box 303, and a connecting plate 308 is fixedly connected to one end of the push rod 307 located in the installation slot 306, and a second telescopic spring 309 is symmetrically fixedly connected between one side of the connecting plate 308 and the installation slot 306, and an insert block 310 is symmetrically fixedly connected to one side of the connecting plate 308, and the insert block 310 is engaged and fixedly connected with the socket 302. Through the design of the zirconia handle 301, compared with other materials, zirconia will not become very hot at high temperatures, thereby effectively reducing the probability of burns for escaping personnel when opening the fire door body 101, providing people with a safe and comfortable environment. The utility model relates to a nut 314 which is fixedly connected to the nut 310 and the socket 302 by means of a snap-fit ​​connection, so that the staff can quickly install and replace the damaged zirconia handle 301, which brings convenience to the staff when using the nut. The bottom end of the installation box 303 is fixedly connected with a support block 311, and the inside of the support block 311 is slidably connected with an insertion rod 312, and a retaining ring 313 is fixedly connected to the outer wall of the insertion rod 312, and a third telescopic spring 314 is fixedly connected between the retaining ring 313 and the support block 311, and the third telescopic spring 314 is sleeved on the outer wall of the insertion rod 312, and a slot is provided on one side of the bottom end of the screw rod 304 315, and one end of the rod 312 is fixedly connected in the slot 315 by snapping, and the contractility of the third telescopic spring 314 makes the rod 312 and the slot 315 snap-fit ​​and fixed, so that the adjusted screw 304 can be fixed and limited, thereby improving the fixing stability of the zirconia handle 301, one end of the zirconia handle 301 is symmetrically fixedly connected with the limiting rod 316, and one end of the socket 302 is provided with a limiting groove 317, and the limiting rod 316 is slidably connected with the limiting groove 317, and the design of the limiting rod 316 further improves the fixing stability of the zirconia handle 301.

[0029] Working principle: Before using this kind of steel fire door with good flame retardant effect, it is necessary to check the overall condition of the device to make sure it can work normally. Figure 1 - Figure 6As shown, when a fire occurs, by starting the water pump 207, the water in the water tank 205 is transferred to the inside of the hollow plate 206, and finally sprayed out through the high temperature resistant atomizing nozzle 204. At this time, the fire door body 101 sprays water mist from top to bottom. The water mist sprayed by the high temperature resistant atomizing nozzle 204 can reduce the temperature near the fire door body 101, slow down the spread of fire, and thus extend the effective fire protection time of the fire door. The water mist can moisten the surface of the fire door body 101, making it less likely to be heated during the fire, thereby maintaining stability. The water mist can increase the humidity near the fire door body 101, which is beneficial to reducing the smoke concentration near the fire door body 101 and improving the evacuation ventilation. The visibility of the road is improved. In the early stage of a fire, the water mist of the high temperature resistant atomizing nozzle 204 can quickly suppress the fire source, reduce the fire, and buy time for the evacuation of personnel and the fire fighting work, thereby giving people an extra layer of protection when escaping and greatly increasing safety. When the high temperature resistant atomizing nozzle 204 is used, the water flow impacts the block 209, and the support rod 210 squeezes the first telescopic spring 212. When the high temperature resistant atomizing nozzle 204 stops spraying water, the contraction of the first telescopic spring 212 makes the block 209 and the connection box 208 engage and seal, thereby effectively avoiding the phenomenon that the residual water resources in the hollow plate 206 keep dripping, which brings inconvenience to people.

[0030] Through the design of the zirconia handle 301, zirconia has a high high temperature resistance, and its melting point is 2200°C, which is much higher than the general use temperature. In a high temperature environment, zirconia has better stability. Compared with other materials, zirconia will not become very hot at high temperatures, so that the escapee can effectively reduce the probability of scalding when opening the fire door body 101, which brings convenience to people when using it. By plugging the zirconia handle 301 into the socket 302, and then rotating the screw 304 to drive the push block 305 to move, the push block 305 squeezes the push rod 307, and at this time the connecting plate 308 moves to make the second telescopic spring 309 stretch, so that The plug block 310 is engaged and fixedly connected with the socket 302, so that the staff can quickly install and replace the damaged zirconia handle 301, which brings convenience to the staff when using it. The blocking ring 313 is driven by pulling the plug rod 312 to squeeze the third telescopic spring 314. By loosening the plug rod 312, the contraction of the third telescopic spring 314 is used to make the plug rod 312 and the slot 315 engage and fix, so that the adjusted screw rod 304 can be fixed and limited, thereby improving the fixing stability of the zirconia handle 301. The fixing stability of the zirconia handle 301 is further improved by the design of the limit rod 316.

[0031] The door frame 1 and the fire door body 101 are in the prior art. Publication No. CN214117978U discloses a steel fire door with good sound insulation and heat insulation effects. The devices used therein are not described in detail here.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may 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 shall be included in the protection scope of the present invention.

Claims

1. A steel fireproof door with good flame retardant effect, comprising a door frame (1), wherein a fireproof door body (101) is symmetrically rotatably connected inside the door frame (1); It is characterized in that Also includes: A flame retardant mechanism (2) is provided at the top of the door frame (1), and a protective mechanism (3) is provided at one side of the fire door body (101); The flame retardant mechanism (2) comprises a support plate (201) fixedly connected to the top of the door frame (1), and the top of the support plate (201) is fixedly connected to a fireproof and high temperature resistant shell (202), and the inside of the support plate (201) is fixedly connected to a connecting pipe (203), and the bottom end of the connecting pipe (203) is fixedly connected to a high temperature resistant atomizing nozzle (204), and the inside of the fireproof and high temperature resistant shell (202) is fixedly connected to a water tank (205), and the inside of the fireproof and high temperature resistant shell (202) is fixedly connected to a hollow plate (206), and the hollow plate (206) and the water tank (205) are fixedly connected. ), a water pump (207) is installed between the hollow plate (206) and the connecting pipe (203), a connecting box (208) is fixedly connected between the hollow plate (206) and the connecting pipe (203), a blocking block (209) is snap-connected inside the top of the connecting box (208), a supporting rod (210) is fixedly connected to the bottom of the blocking block (209), sliding boxes (211) are symmetrically fixedly connected inside the two sides of the connecting box (208), two ends of the supporting rod (210) penetrate the sliding box (211) for sliding connection, and a first telescopic spring (212) is fixedly connected between the two ends of the supporting rod (210) and the sliding box (211).

2. A steel fire door with good flame retardant effect according to claim 1, characterized in that: The protection mechanism (3) comprises a zirconia handle (301) arranged on one side of the fire door body (101), and a socket (302) is fixedly connected to one side of the fire door body (101), and one end of the zirconia handle (301) is snap-connected to the socket (302), and an installation box (303) is fixedly connected to the inside of one end of the zirconia handle (301), and a screw (304) is rotatably connected to the inside of the installation box (303), and a push block (305) is threadedly connected to the outer wall of the screw (304), and the zirconia handle (301) is fixedly connected to the inside of the installation box (303). ) is symmetrically provided with a mounting groove (306) at one end thereof, and a push rod (307) is slidably connected between the inside of the mounting groove (306) and the mounting box (303), and a connecting plate (308) is fixedly connected to one end of the push rod (307) located inside the mounting groove (306), and a second telescopic spring (309) is symmetrically fixedly connected between one side of the connecting plate (308) and the mounting groove (306), and an insert block (310) is symmetrically fixedly connected to one side of the connecting plate (308), and the insert block (310) is fixedly connected to the socket (302) by snap-fitting.

3. A steel fire door with good flame retardant effect according to claim 2, characterized in that: The bottom end of the installation box (303) is fixedly connected to a support block (311), and an insertion rod (312) is slidably connected inside the support block (311), and a retaining ring (313) is fixedly connected to the outer wall of the insertion rod (312), and a third telescopic spring (314) is fixedly connected between the retaining ring (313) and the support block (311), and a slot (315) is provided on one side of the bottom end of the screw rod (304), and one end of the insertion rod (312) is fixedly connected to the slot (315) by snapping.

4. A steel fire door with good flame retardant effect according to claim 2, characterized in that: One end of the zirconia handle (301) is symmetrically fixedly connected to a limiting rod (316), and one end of the socket (302) is provided with a limiting groove (317) inside, and the limiting rod (316) and the limiting groove (317) are slidably connected.

5. A steel fireproof door with good flame retardant effect according to claim 2, characterized in that: The two sides of the push block (305) are slidably connected to the interior of the installation box (303).

6. A steel fireproof door with good flame retardant effect according to claim 3, characterized in that: The third telescopic spring (314) is sleeved on the outer side wall of the insertion rod (312).

7. The steel fireproof door with good flame retardant effect according to claim 1, characterized in that: The door frame (1), the support plate (201) and the fireproof and high temperature resistant shell (202) are all embedded in the wall.

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