A fire-resistant and stable fire door

Abstract

The utility model discloses a fire-resistant and stable fireproof door, which relates to the technical field of fireproof doors, including a door frame and a door body, an anti-leakage structure, including an embedded box located at the upper end of the door frame, a storage tank and a delivery pump located inside the embedded box, a delivery port opened inside the upper end of the door frame, a ring-shaped flow channel is arranged on the side of the door body, and a symmetrically distributed sealing strip is arranged on the outer wall of the door body; a smoke exhaust structure, including a chamber opened inside the door body, a smoke exhaust hole distributed in a rectangular array and penetrating the chamber is arranged at one end of the door body, a valve port installed at one end of the door body and inside the chamber, and a suction pipe embedded in the door frame and corresponding to the valve port; in the utility model, the anti-leakage structure is utilized to solve the problem that materials such as rubber are easily damaged by flames and heat, thereby losing the sealing effect, and it is achieved that after the sealing strip is burned, the flame and smoke are still intercepted by the flame retardant inside the flow channel, and the fireproof door can be used stably.

Description

Technical Field

[0001] The utility model relates to the technical field of fireproof doors, in particular to a fire-resistant and stable fireproof door. Background Art

[0002] Fire doors are fireproof doors that are widely used inside buildings or in places connected to the outdoors to prevent the spread of fire and ensure the safety of personnel evacuation and building structures. Fire doors are mainly made of metal materials and are specially designed to withstand high temperatures and slow the spread of fire. Most fire doors are sealed with rubber or similar materials, which are difficult to withstand high temperatures for a long time and are easily damaged by flames and heat.

[0003] A Chinese patent discloses a fire door (authorization announcement number CN205805345U), which includes a fire door frame, a fire door body, a fire board, and a strip-shaped fire door core. The fire door body is in the shape of a rectangular plate, and multiple fire door cores are installed in the fire door body. The length direction of the multiple fire door cores extends along the height direction of the fire door body, and the multiple fire door cores are arranged in parallel and spaced along the width direction of the fire door body; the fire door body is rotatably connected to the fire door frame, and the fire door frame includes an inner side and an outer side along its thickness direction. The inner side of the fire door frame is provided with a fire board, and the fire board is slidably connected to the fire door frame to cover the gap between the fire door body and the fire door frame. When the fire door is used for fire protection, the structural strength of the fire door is high, and it is not easy to warp and deform in a long-term heated environment, and it is not easy to have gaps. Flames and thick smoke are not easy to escape from the house, and the protection effect is good.

[0004] This patented technology has the advantages of high strength and not easy to deform when used, but it still has some shortcomings when used, because most fire doors are sealed with rubber or similar materials, which are difficult to withstand high temperatures for a long time and are easily damaged by flames and heat, thus losing their sealing effect, resulting in the fire door still being intact, but the fire and smoke leaking through the connection between the door body and the door frame, causing the fire to spread. Therefore, those skilled in the art provide a fire-resistant and stable fire door to solve the problems raised in the above background technology. Utility Model Content

[0005] The purpose of the utility model is to provide a fire-resistant and stable fireproof door to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model provides a fire-resistant and stable fireproof door, comprising a door frame and a door body.

[0007] The anti-leakage structure includes an embedded box located at the upper end of the door frame, a storage tank and a delivery pump located inside the embedded box, a delivery port opened inside the upper end of the door frame, an annular flow channel is arranged on the side of the door body, and symmetrically distributed sealing strips are arranged on the outer wall of the door body;

[0008] as well as;

[0009] The smoke exhaust structure includes a chamber opened inside the door body, one end of the door body is provided with smoke exhaust holes distributed in a rectangular array and penetrating the chamber, a valve port installed at one end of the door body and inside the chamber, and a suction pipe embedded in the door frame and corresponding to the valve port.

[0010] Furthermore, the sealing strips are located at both ends of the flow channel and partially protrude from the outer wall of the door body;

[0011] Specifically, the sealing strip provides two seals for the door body and the door frame, and the protruding portion shrinks when squeezed, so that the connection with the door body and the door frame is tighter.

[0012] Furthermore, a storage battery electrically connected to a delivery pump is provided inside the embedded box, the delivery pump is connected to the storage tank through a pipeline, and a delivery pipe connected to a delivery port is provided at the output end of the delivery pump;

[0013] Specifically, the battery provides an additional electrical connection basis for the delivery pump, so that when the power system is destroyed, the delivery pump can still be used effectively.

[0014] Furthermore, both ends of the embedded box are provided with embedded reinforcements that are equidistantly distributed;

[0015] Specifically, the embedded reinforcement is fixed to the poured concrete during the construction of the building to maintain the stability of the embedded box.

[0016] Furthermore, a solenoid valve is provided at one end of the suction pipe located outside the door frame;

[0017] Specifically, the electromagnetic valve can provide conditions for remotely controlling the opening and closing of the suction pipe.

[0018] Furthermore, a valve seat, a support ring, a valve core and a valve spring are arranged inside the valve port, the valve seat and the support ring are connected to the inner wall of the valve port, one end of the valve core is located inside the valve seat, and the valve spring is located at one end of the valve core and connected to the support ring;

[0019] Specifically, the valve core inside the valve port closes the opening inside the valve seat through elastic support, so that the valve port is not connected to the chamber.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: when the fire door is installed, a storage tank is pre-buried in the wall above the door frame, and a flame retardant fluid is stored inside. When a fire occurs, a delivery pump sucks the flame retardant fluid inside the tank into the flow channel, and the flow channel is located at the closed part of the door body and the door frame. When the seal burns, the flame retardant fluid blocks the fire, and at the same time, the flame retardant fluid is removed through the damage, which reduces the situation of the seal expanding the damage, and quickly forms a heat insulation and flame retardant protective layer, avoiding the problem of fire and smoke leaking through the closed door body and door frame due to the burning of the seal, and the fire stability of the fire door is improved;

[0021] At the same time, when the door body and the door frame are closed, the valve port inside the door body is squeezed open and connected through the chamber. Under the transmission of negative pressure in the suction pipe, the smoke enters the chamber through the smoke exhaust hole, and the smoke generated by combustion is quickly discharged, reducing the harm of smoke to the human body and building structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the main three-dimensional structure of the utility model;

[0023] Figure 2 It is a rear-view stereoscopic structural schematic diagram of the utility model;

[0024] Figure 3 This is a schematic diagram of the three-dimensional structure of the embedded box of the utility model at the first angle of the main section;

[0025] Figure 4 It is a schematic diagram of the second angle structure of the three-dimensional main section of the utility model;

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the valve port side section of the utility model.

[0027] In the figure: 100, door frame;

[0028] 200, door body;

[0029] 300, anti-leakage structure; 301, embedded box; 302, storage tank; 303, battery; 304, embedded ribs; 305, delivery pump; 306, delivery pipe; 307, delivery port; 308, flow channel; 309, sealing strip;

[0030] 400, smoke exhaust structure; 401, suction pipe; 402, valve port; 403, smoke exhaust hole; 404, chamber; 405, valve seat; 406, valve core; 407, valve spring; 408, support ring. DETAILED DESCRIPTION

[0031] 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.

[0032] See also Figure 1-5 , the utility model provides a technical solution:

[0033] See also Figure 1-Figure 4 ,

[0034] A fire-resistant and stable fireproof door comprises a door frame 100 and a door body 200.

[0035] The anti-leakage structure 300 includes an embedded box 301 located at the upper end of the door frame 100, a storage tank 302 and a delivery pump 305 located inside the embedded box 301, a delivery port 307 opened inside the upper end of the door frame 100, an annular flow channel 308 is provided on the side of the door body 200, and the outer wall of the door body 200 is provided with symmetrically distributed sealing strips 309;

[0036] A storage battery 303 electrically connected to a delivery pump 305 is provided inside the embedded box 301. The delivery pump 305 is connected to the storage tank 302 through a pipeline. A delivery pipe 306 connected to a delivery port 307 is provided at the output end of the delivery pump 305.

[0037] Both ends of the embedded box 301 are provided with embedded ribs 304 which are equidistantly distributed;

[0038] A solenoid valve is provided at one end of the suction pipe 401 located outside the door frame 100;

[0039] The embedded box 301 is poured with concrete and bonded with the embedded reinforcement 304, which ensures the firmness and stability of the embedded box 301 and provides a solid position for locking the delivery pipe 306. In the event of a fire, the system can quickly start the delivery pump 305 through terminal control to suck the flame retardant inside the storage tank 302 and deliver it to the flow channel 308, thereby forming a barrier to flames and smoke, and gradually overflowing at the place where the sealing strip 309 is burned, providing additional protection for the sealing strip 309, avoiding the use of rubber or similar materials for the sealing materials of most fire doors, which are difficult to withstand high temperatures for a long time. Once the fire approaches the seals between the door body 200 and the door frame 100, the erosion of high temperature and flames will accelerate the aging and damage of the seals, causing them to lose their original fire-retardant function, thereby improving the stability of the fire door.

[0040] See also Figure 1 , Figure 5 ,

[0041] as well as;

[0042] The smoke exhaust structure 400 includes a chamber 404 opened inside the door body 200, one end of the door body 200 is provided with smoke exhaust holes 403 distributed in a rectangular array and penetrating the chamber 404, a valve port 402 installed at one end of the door body 200 and inside the chamber 404, and a suction pipe 401 embedded in the door frame 100 and corresponding to the valve port 402.

[0043] A valve seat 405, a support ring 408, a valve core 406 and a valve spring 407 are arranged inside the valve port 402. The valve seat 405 and the support ring 408 are connected to the inner wall of the valve port 402. One end of the valve core 406 is located inside the valve seat 405. The valve spring 407 is located at one end of the valve core 406 and is connected to the support ring 408.

[0044] The design of connecting the suction pipe 401 with the negative pressure device achieves the suction and discharge treatment of smoke through the coordinated action of the valve core 406, the valve spring 407, the valve seat 405 and the solenoid valve, thereby promoting the rapid discharge of smoke. The smoke exhaust system maintains a relatively clear air environment inside the building by quickly discharging the smoke and toxic gases produced by combustion, which can reduce the impact of smoke inside the building on visibility, improve the visibility of the escape route, facilitate the evacuation of personnel, and reduce injuries and deaths caused by inhalation of smoke. The smoke discharge is conducive to the entry of rescue personnel into the building, providing a more conducive working environment for search and rescue and fire fighting, while reducing the risk of rescue personnel being affected by smoke.

[0045] Working principle: During construction, after the door frame 100 reserves a slot, the embedded box 301 is installed inside the building, located above the reserved slot of the door frame 100, and poured with concrete. The concrete is bonded to the embedded reinforcement 304, and the embedded box 301 is firmly fixed in the building. At the same time, it is locked in position for the delivery pipe 306. Some sections protrude from the reserved slot of the door frame 100, which is convenient for subsequent docking with the delivery port 307.

[0046] The door body 200 and the door frame 100 are rotatably installed through an embedded hinge. When closed, the door body 200 and the door frame 100 squeeze the sealing strip 309, and the sealing strip 309 is forced to shrink, thereby sealing the closed part of the door body 200 and the door frame 100. In the event of a fire, the sealing strip 309 is gradually burned. At this time, the terminal controls the delivery pump 305 to suck the flame retardant inside the storage tank 302. The flame retardant exists in the form of a fluid. According to the type of building use, the corresponding flame retardant is stored. The flame retardant enters the delivery port 307 through the delivery pipe 306 and enters the flow channel 308. The flame retardant inside the flow channel 308 intercepts the flame and smoke entering, and overflows through the burned part of the sealing strip 309 to protect the sealing strip 309.

[0047] At the same time, the suction pipe 401 should be connected to the negative pressure device. When the door body 200 is closed, the valve core 406 is supported by the suction pipe 401, the valve spring 407 is forced to shrink, the opening inside the valve seat 405 is opened, and the suction force enters the chamber 404 through the valve port 402, and draws the smoke through the smoke exhaust hole 403. The smoke is sucked out and transported to a safe place for discharge treatment.

Claims

1. A fire-resistant stable fire door, characterized in that: It comprises a door frame (100) and a door body (200), The anti-leakage structure (300) comprises a pre-buried box (301) located at the upper end of the door frame (100), a material storage tank (302) and a delivery pump (305) located inside the pre-buried box (301), a delivery port (307) opened inside the upper end of the door frame (100), a ring-shaped flow channel (308) is arranged on the side of the door body (200), and the outer wall of the door body (200) is provided with symmetrically distributed sealing strips (309); as well as; The smoke exhaust structure (400) comprises a chamber (404) opened inside a door body (200), one end of the door body (200) is provided with smoke exhaust holes (403) distributed in a rectangular array and penetrating the chamber (404), a valve port (402) installed at one end of the door body (200) and penetrating the chamber (404), and a suction pipe (401) embedded in the door frame (100) and corresponding to the valve port (402).

2. A fire-resistant stable fire door according to claim 1, characterized in that: The sealing strips (309) are located at both ends of the flow channel (308) and partially protrude from the outer wall of the door body (200).

3. A fire-resistant stable fire door according to claim 1, characterized in that: A storage battery (303) electrically connected to a delivery pump (305) is arranged inside the embedded box (301); the delivery pump (305) is connected to the storage tank (302) via a pipeline; and a delivery pipe (306) connected to a delivery port (307) is arranged at the output end of the delivery pump (305).

4. A fire-resistant stable fire door as claimed in claim 1, characterized in that: Both ends of the embedded box (301) are provided with embedded ribs (304) distributed at equal intervals.

5. A fire-resistant stable fire door as claimed in claim 1, characterized in that: The suction pipe (401) is provided with a solenoid valve at one end located outside the door frame (100).

6. A fire-resistant stable fire door as claimed in claim 1, characterized in that: A valve seat (405), a support ring (408), a valve core (406) and a valve spring (407) are arranged inside the valve port (402); the valve seat (405) and the support ring (408) are connected to the inner wall of the valve port (402); one end of the valve core (406) is located inside the valve seat (405); and the valve spring (407) is located at one end of the valve core (406) and is connected to the support ring (408).

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