Middle stand column assembly of emergency door

Abstract

The utility model belongs to the technical field of emergency doors, and particularly relates to an emergency door middle stand column assembly which comprises a stand column pipe, a mounting plate is fixedly connected to the lower side of the stand column pipe, closed grooves are formed in the two sides of the stand column pipe correspondingly, fireproof sealing pieces are fixedly connected to the closed grooves, and a mud injection cavity is formed in the stand column pipe; two groups of winding discs are mounted in the mud injection cavity, winding rollers are rotatably connected to the interiors of the winding discs, elastic metal sheets are wound on the winding rollers, one end of each elastic metal sheet penetrates through the corresponding winding disc and the corresponding stand column pipe, and a spring is mounted at the upper end of each winding roller through a connecting rod. The emergency door and the stand column pipe are connected more tightly, fire behavior and smoke spreading are reduced, and the problem that smoke floats out of a gap between the emergency door and the middle stand column to threaten life safety of people is solved.

Description

Technical Field

[0001] The present application belongs to the technical field of emergency doors, and specifically relates to a middle column assembly for an emergency door. Background Art

[0002] Emergency doors are an important part of building fire protection. Emergency doors are generally used at the entrances and exits of fire passages in buildings to block the spread of flames and smoke. They need to be kept open when escaping and used to evacuate people when a fire occurs. They must also be closed at any time to prevent the spread of fire. When installing two or more emergency doors, it is necessary to install intermediate columns between the multiple emergency doors. The intermediate columns can increase the stability of the door leaf and the fireproof and heat-insulating effects. At the same time, the firmness of the door frame can be enhanced and the service life of the door can be increased. However, the connection between the traditional intermediate column and the emergency door is not tight enough, so that when the emergency door faces a fire, smoke will float out from the gap between the emergency door and the intermediate column, thereby posing a threat to the lives and safety of the people. Therefore, it is necessary to develop a component that can ensure that the people will not be choked by smoke in the event of a fire and enhance the sealing of the emergency door and the intermediate column. Utility Model Content

[0003] The purpose of the present application is to design an emergency door middle column assembly in response to the shortcomings of the prior art by adopting a closed groove, a fireproof seal and a winding reel. Under normal circumstances, the emergency door is in a closed state with the column tube. In the event of a fire, the affected people can escape by opening the emergency door; when the flame and smoke spread to the vicinity of the emergency door and the column tube, the fireproof expansion agent inside the fireproof seal will expand due to heat, and then can fill the gap at the connection between the emergency door and the column tube, and the high temperature will cause the bimetallic strip inside the heat conduction box to deform, so that the bimetallic strip is connected to the push switch. When the push switch is turned on, the electromagnet is energized, so that it has magnetic attraction, so that it can absorb the metal components on the emergency door, so that the emergency door and the column tube are connected more tightly, reducing the spread of fire and smoke; and solves the problem that smoke floating out of the gap between the emergency door and the middle column poses a threat to the life safety of the people.

[0004] In order to achieve the above purpose, the technical solution adopted in this application is:

[0005] A middle column assembly for an emergency door comprises a column tube, a mounting plate is fixedly connected to the lower side of the column tube, closed grooves are provided on both sides of the column tube, fireproof seals are fixedly connected to the closed grooves, a mud injection cavity is provided inside the column tube, two groups of winding disks are installed inside the mud injection cavity, a winding roller is rotatably connected inside the winding disk, an elastic metal sheet is wound around the winding roller, one end of the elastic metal sheet passes through the winding disk and the column tube, and a spring is installed on the upper end of the winding roller through a connecting rod.

[0006] Preferably, the fireproof sealing member comprises a fireproof sealing sleeve, the interior of which is filled with a fireproof expansion agent.

[0007] Preferably, door lock grooves are provided on both sides of the column tube, and a door lock frame is fixedly connected inside the door lock groove.

[0008] Preferably, an inspection door is bolted to the surface of the column tube, and the installation position of the inspection door is connected to the mud injection cavity.

[0009] Preferably, an electromagnet is installed inside the closed groove, the fireproof sealing member is covered on the electromagnet, a heat-conducting box is installed on the column tube, a bimetallic strip is installed inside the heat-conducting box, a push switch is installed at one end of the bimetallic strip, and the push switch is electrically connected to the electromagnet.

[0010] Preferably, an emergency switch is installed on the column tube, and fragile glass is installed on the outer side of the emergency switch.

[0011] Preferably, a through hole is provided at the penetration point between the elastic metal sheet and the column tube, and a pulley is installed inside the through hole.

[0012] Compared with the prior art, this application has the following beneficial effects:

[0013] 1. The present application adopts a closed groove, a fireproof seal and a winding reel to design an emergency door middle column assembly. Under normal circumstances, the emergency door is in a closed state with the column tube. In the event of a fire, the affected people can escape by opening the emergency door; when the flame and smoke spread to the vicinity of the emergency door and the column tube, the fireproof expansion agent inside the fireproof seal will expand due to heat, and then can fill the gap at the connection between the emergency door and the column tube, and the high temperature will cause the bimetallic strip inside the heat conduction box to deform, so that the bimetallic strip is connected to the push switch. When the push switch is turned on, the electromagnet is energized, so that it has magnetic attraction, so that it can absorb the metal components on the emergency door, so that the emergency door and the column tube are connected more closely, reducing the spread of fire and smoke; it solves the problem that smoke floats out of the gap between the emergency door and the middle column, posing a threat to the life safety of the people.

[0014] 2. The setting of the winding reel in the present application enables the elastic metal sheet inside the winding reel to be connected to the emergency door, wherein the mainspring inside the winding reel tightens the elastic metal sheet through the winding roller, so that the emergency door and the closing groove on the column tube are in a closed state under normal circumstances; when the emergency door is opened for use, the emergency door will elastically deform the mainspring through the winding roller when it rotates, and the elastic metal sheet of the winding roller is pulled out. After the emergency door is used, the mainspring is wound up under the elastic action, thereby driving the winding roller to rotate, so that the elastic metal sheet continues to be wound around the winding roller, and the emergency door is closed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a top view schematic diagram of the center column tube structure of the utility model;

[0017] Figure 3 This is a schematic cross-sectional view of the winding reel structure in the utility model;

[0018] Figure 4 for Figure 1 A schematic diagram of the enlarged structure in the middle;

[0019] Figure 5 It is a cross-sectional schematic diagram of the heat conduction box in the utility model.

[0020] Among them: 1. Mounting plate; 2. Column tube; 201. Closing groove; 202. Fireproof seal; 203. Through hole; 204. Elastic metal sheet; 205. Winding disk; 206. Winding roller; 207. Connecting rod; 208. Spring; 3. Heat transfer box; 301. Bimetallic strip; 302. Push switch; 303. Electromagnet; 304. Emergency switch; 4. Door lock slot; 401. Door lock frame; 402. Inspection door; 5. Mud injection chamber. DETAILED DESCRIPTION

[0021] like Figure 1-5 As shown, an emergency door middle column assembly includes a column tube 2, a mounting plate 1 is fixedly connected to the lower side of the column tube 2, closed grooves 201 are opened on both sides of the column tube 2, a fireproof seal 202 is fixedly connected to the closed groove 201, a mud injection cavity 5 is arranged inside the column tube 2, an electromagnet 303 is installed inside the closed groove 201, the fireproof seal 202 covers the electromagnet 303, a heat conduction box 3 is installed on the column tube 2, a bimetallic strip 301 is installed inside the heat conduction box 3, a push switch 302 is installed at one end of the bimetallic strip 301, and the push switch 302 is electrically connected to the electromagnet 303.

[0022] In this embodiment, when a fire occurs, the affected people can escape by opening the emergency door. When the emergency door is not opened by anyone, the emergency door and the column tube 2 are in a closed state (the emergency door is closed). When the flame and smoke spread to the vicinity of the emergency door and the column tube 2, the flame and smoke will increase the temperature around the column tube 2, causing the fireproof expansion agent inside the fireproof seal 202 to expand due to heat. The fireproof expansion agent will expand due to heat and increase the volume of the fireproof seal 202, thereby filling the gap at the connection between the emergency door and the column tube 2, and the high temperature will cause the heat conduction box The bimetallic strip 301 inside the 3 is deformed, and the "U"-shaped bimetallic strip 301 is gradually changed into a "one" shape by heating, so that the bimetallic strip 301 is connected to the push switch 302. When the push switch 302 is turned on, the electromagnet 303 is energized. A battery is installed inside the electromagnet 303, and the electromagnet 303 is powered by the battery to avoid the situation that the external power supply is disconnected in the event of a fire, and the electromagnet 303 cannot work normally. The electromagnet 303 is energized and has magnetic force, so it can absorb the metal components on the emergency door, so that the emergency door and the column tube 2 are connected more tightly.

[0023] As a preferred mode, the fireproof seal 202 includes a fireproof seal sleeve, and the interior of the fireproof seal sleeve is filled with a fireproof expansion agent. The outer side of the fireproof seal sleeve is coated with a flame retardant material to prevent the fireproof seal sleeve from catching fire and causing the fireproof expansion agent inside the fireproof seal sleeve to leak out. The protective seal sleeve has good plasticity and elasticity, and will deform under pressure to facilitate filling the gap between the emergency door and the column tube 2.

[0024] As a preferred mode, door lock slots 4 are provided on both sides of the column tube 2, and a door lock frame 401 is fixedly connected inside the door lock slots 4. The door lock slots 4 are provided to facilitate the insertion of the fire lock on the emergency door, so that the emergency door is in a closed state with the column tube 2 during normal operation to prevent it from being used at will.

[0025] As a preferred method, the surface side of the column tube 2 is bolted with an inspection door 402, and the installation position of the inspection door 402 is connected with the mud injection cavity 5. When the fire protection lock fails, that is, it is inserted into the door lock slot 4 and cannot be pulled out, the inspection door 402 can be opened to inspect the fire protection lock. When installing, the mud injection cavity 5 can inject cement into the column tube 2 to increase the overall stability of the column tube 2. It can also be installed by only connecting the mounting plate 1 to the ground with bolts. The specific installation needs to be determined according to the actual use of the building.

[0026] As a preferred method, two sets of winding disks 205 are installed inside the mud injection chamber 5, and the winding disk 205 is rotatably connected to the inside thereof. An elastic metal sheet 204 is wound around the winding roller 206, and one end of the elastic metal sheet 204 passes through the winding disk 205 and the column tube 2. A spring 208 is installed on the upper end of the winding roller 206 through a connecting rod 207. The spring 208 inside the winding disk 205 tightens the elastic metal sheet 204 through the winding roller 206, so that the emergency door and the closing groove 201 on the column tube 2 are in a closed state under normal circumstances; when the emergency door is opened for use, the emergency door will cause the spring 208 to elastically deform through the winding roller 206 when it rotates, and the elastic metal sheet 204 of the winding roller 206 is pulled out. After the emergency door is used, the spring 208 is wound under the elastic action, thereby driving the winding roller 206 to rotate, so that the elastic metal sheet 204 continues to be wound around the winding roller 206, and the emergency door is closed.

[0027] As a preferred mode, an emergency switch 304 is installed on the column tube 2, and a breakable glass is installed on the outside of the emergency switch 304. The emergency switch 304 is electrically connected to the electromagnet 303. When the electromagnet 303 is powered to absorb the emergency door and there are still people inside the emergency door who have not escaped, the escaped people can break the emergency glass on the emergency switch 304 in time, press the emergency switch 304, and make the electromagnet 303 lose power, so that the electromagnet 303 loses magnetism, so that the emergency door can be opened normally.

Claims

1. An emergency door intermediate column assembly, comprising a column tube (2), characterized in that: The lower side of the column tube (2) is fixedly connected to a mounting plate (1), both sides of the column tube (2) are provided with closed grooves (201), the closed grooves (201) are fixedly connected to a fireproof sealing member (202), a mud injection cavity (5) is provided inside the column tube (2), an electromagnet (303) is installed inside the closed groove (201), the fireproof sealing member (202) covers the electromagnet (303), a heat conduction box (3) is installed on the column tube (2), a bimetallic strip (301) is installed inside the heat conduction box (3), a push switch (302) is installed at one end of the bimetallic strip (301), and the push switch (302) is electrically connected to the electromagnet (303).

2. The emergency door middle column assembly according to claim 1, characterized in that: The fireproof sealing member (202) comprises a fireproof sealing sleeve, the interior of which is filled with a fireproof expansion agent.

3. The emergency door middle column assembly according to claim 1, characterized in that: Door lock grooves (4) are provided on both sides of the column tube (2), and a door lock frame (401) is fixedly connected inside the door lock groove (4).

4. The emergency door middle column assembly according to claim 1, characterized in that: The surface side of the column tube (2) is bolted with an inspection door (402), and the installation position of the inspection door (402) is connected to the mud injection cavity (5).

5. The emergency door middle column assembly according to claim 1, characterized in that: Two groups of winding disks (205) are installed inside the mud injection chamber (5), and a winding roller (206) is rotatably connected inside the winding disk (205). An elastic metal sheet (204) is wound around the winding roller (206), and one end of the elastic metal sheet (204) passes through the winding disk (205) and the column tube (2), and a spring (208) is installed on the upper end of the winding roller (206) through a connecting rod (207).

6. The emergency door intermediate column assembly according to claim 1, characterized in that: An emergency switch (304) is installed on the column tube (2), and fragile glass is installed on the outer side of the emergency switch (304).

7. The emergency door intermediate column assembly according to claim 5, characterized in that: A through hole (203) is provided at the point where the elastic metal sheet (204) and the column tube (2) intersect each other, and a pulley is installed inside the through hole (203).

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