CN215595394U - Normally open type fireproof structure of subway interval communication channel - Google Patents
Normally open type fireproof structure of subway interval communication channel Download PDFInfo
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- CN215595394U CN215595394U CN202120453910.0U CN202120453910U CN215595394U CN 215595394 U CN215595394 U CN 215595394U CN 202120453910 U CN202120453910 U CN 202120453910U CN 215595394 U CN215595394 U CN 215595394U
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Abstract
The utility model provides a normally open type fireproof structure of a subway interval communication channel, which comprises two fireproof door component structures which are in 180-degree rotational symmetry, wherein each fireproof door component structure comprises a door leaf and a separated door frame component, each separated door frame component is divided into a door shaft frame body and a door side frame body, the door shaft frame bodies are rotatably connected with one side of the end parts of the door leaves, a structural groove is formed in one side wall body of a channel main body structure, the door shaft frame bodies are arranged in the structural grooves, the door leaves can enter the structural grooves through rotation, the door side frame bodies are located on the side wall body opposite to the structural grooves, and the door leaves can be in contact with the door side frame bodies through rotation. The utility model can realize pressure relief under normal working conditions, and overcomes the defect that the existing fireproof door is deformed or even falls off when bearing repeated tunnel wind pressure; under the condition of fire or other emergency, the fire-fighting smoke-gas converter is switched into a normally closed state, so that people are evacuated, smoke gas is prevented from spreading, and the fire-fighting requirement is met.
Description
Technical Field
The utility model belongs to the technical field of rail transit construction, and particularly relates to a normally open type fireproof structure of a subway interval communication channel.
Background
The national standard "subway design fire standard" (GB51298-2018) clause 5.4.2 specifies: an interconnection channel is arranged between two underground sections for single-line passenger carrying operation, and a first-class fireproof door which is parallel to two frames and is opened reversely is arranged in the channel. When a fire disaster occurs in the region, people can evacuate to the non-firing region by using the communication channel, and the fireproof door in the communication channel plays a role in preventing the fire disaster from spreading within a certain time. However, under the long-term reciprocating action of the wind pressure of the train piston, the situations that the fireproof door in the contact passage is damaged and falls off and the driving safety is threatened occur occasionally in practical engineering, even serious accidents are caused, for example, 6 and 19 days in 2011, the fireproof door in the tunnel contact passage between the new house of the subway and the public service western bridge station deforms and falls off to cause section blockage, and the shutdown time is up to 3 hours.
At present, the method generally adopted is to improve the wind pressure resistance of the fireproof door product, for example, the installation strength of the door frame can be greatly improved by adopting a pre-buried anchoring hook mode for the door frame main body and the wall body; for example, the effect of improving the wind pressure resistance of the fire door is achieved by adding shock absorption measures such as a spring damper. The wind pressure resistance of the fireproof door can be improved really by the measures, the service life of the fireproof door is prolonged, but the fireproof door is still placed in a high wind pressure environment, and the outstanding problems of performance to be verified, high maintenance cost and the like exist. Therefore, there is a need for improved fire protection in communication channels.
Disclosure of Invention
Aiming at the technical problems in the prior art, the utility model provides a normally-open fireproof structure of a subway interval communication channel, which is kept in an open state under normal conditions, can eliminate tunnel air pressure generated by a train to a fireproof door during operation, and overcomes the defect that the existing fireproof door is deformed or even falls off due to repeated tunnel air pressure; prevent fire door and station fire extinguishing system linkage simultaneously, under conflagration or other emergency, prevent that fire door can be according to the instruction fast switch into the normally closed state, realize personnel are sparse, prevent that the flue gas from stretching, satisfy the fire control requirement.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
the utility model provides an interval contact passageway normally open fire resistive construction of subway, is including setting up the twice on passageway major structure prevent fire door subassembly structure, twice prevent that fire door subassembly structure is 180 rotational symmetry, prevent that fire door subassembly structure includes door leaf and disconnect-type door frame subassembly, disconnect-type door frame subassembly divide into door pivot framework and door side framework, the door pivot framework rotates with tip one side of door leaf and is connected, be equipped with the structure recess on one side wall body of passageway major structure, the door pivot framework set up in inside the structure recess, the door leaf can get into through the rotation in the structure recess, door side framework is located passageway major structure with on the wall body of one side that the structure recess is relative, the door leaf can through the rotation with door side framework contact.
Wherein, the direction of rotation of twice door leaf of fireproof door subassembly structure is inwards set up in opposite directions.
The fireproof door assembly is characterized in that a door closer is arranged in the fireproof door assembly structure, and two connecting ends of the door closer are respectively connected to the door leaf and the door shaft frame body or a wall body in the structural groove and used for controlling the opening and closing of the door leaf.
The fireproof door assembly is characterized in that an electromagnetic door suction assembly is arranged in the fireproof door assembly structure and comprises an electromagnetic door suction plate arranged on the door leaf and an electromagnetic door suction block arranged on the wall body in the structural groove, and the electromagnetic door suction plate and the electromagnetic door suction block can be mutually butted and adsorbed together.
Furthermore, the electromagnetic door stopper component also comprises a spring damper, wherein the spring damper is fixed on the wall body in the structural groove and is positioned between the electromagnetic door stopper and the wall body of the structural groove.
Preferably, the number of the electromagnetic door stopper assemblies is two, and the two electromagnetic door stopper assemblies are respectively located above and below the door leaf. In addition, the electromagnetic door stopper assembly and the door closer are respectively positioned at the two transverse ends of the door leaf.
The fire-proof structure of the utility model also comprises a controller, wherein the controller can be respectively in signal control connection with the electromagnetic door magnetic absorption block and the door closer and respectively controls the opening and closing of the electromagnetic door magnetic absorption block and the door closer, and the controller is simultaneously in signal connection with a station control room.
And fireproof damping cushions are arranged on the connecting parts of the door shaft frame body and the door side frame body of the separated door frame assembly and the wall body respectively.
Compared with the prior art, the utility model has the following beneficial effects:
(1) the normally open fire-proof structure of the communication channel provided by the utility model can keep an opening state under a normal condition, can eliminate tunnel wind pressure generated by a train to a fire-proof door during running, and overcomes the defect that the existing fire-proof door is deformed or even falls off when bearing repeated tunnel wind pressure.
(2) The normally open fire-proof structure of the communication channel is linked with a fire-fighting system, and the fire-proof door can be quickly converted into a normally closed state according to an instruction under the condition of a fire or other emergency, so that personnel evacuation is realized, smoke is prevented from spreading, the fire-fighting requirement is met, and intelligent control is realized.
(3) According to the utility model, the door leaf is hidden in the structural groove, the separated door frame assembly and the joint adopt the measures of the fireproof shock pad and the spring damper, so that the acting force of the tunnel wind pressure on the fireproof door is further reduced, the door body vibration is reduced, the service life of the fireproof door is prolonged, and the subway operation safety is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention in a top view;
figure 2 is a partial schematic structural view of a fire rated door assembly construction of the present invention;
FIG. 3 is a schematic elevational view of the present invention;
FIG. 4 is an enlarged plan view of the door spindle frame of FIG. 2 at the junction with the structural groove;
FIG. 5 is an enlarged view of the connection between the magnetic attraction block of the electromagnetic door and the structural groove in FIG. 2.
Detailed Description
For a better understanding of the present invention, reference is made to the following detailed description taken in conjunction with the accompanying drawings. Technical terms used in the following description have the same meanings as commonly understood by one of ordinary skill in the art to which the present invention belongs.
As shown in fig. 1, the fire protection structure of the present invention includes two fire protection door assembly structures disposed on a channel main body structure 5, the two fire protection door assembly structures are rotationally symmetric at 180 °, the fire protection door assembly structure includes a door leaf 2 and a separated door frame assembly 1, the separated door frame assembly 1 is divided into a door spindle frame 11 and a door side frame 13, the door spindle frame 11 is rotationally connected with one side of an end portion of the door leaf 2, a structural groove 3 is disposed on a wall body on one side of the channel main body structure 5, the door spindle frame 11 is disposed inside the structural groove 3, the door leaf 2 can enter the structural groove 3 by rotating, the door side frame 13 is located on a wall body on a side of the channel main body structure 5 opposite to the structural groove 3, and the door leaf 2 can contact the door side frame 13 by rotating.
Wherein, twice fireproof door subassembly structure is close to the ascending line together, and another is close to the descending line, and the opening of two doors is all in the passageway with the closed position, does not encroach on the width of evacuation passageway outside the passageway. And because twice prevent fire door assembly structure rotational symmetry, the opening and closing direction of two doors sets up in opposite directions, not only can effectively reduce the wind pressure, makes things convenient for personnel to pass in and out, can be when carrying out the conflagration isolated moreover, the in-process of opening and shutting forms the bending and extending effect of hot air current in the passageway, and further supplementary isolated intensity of a fire stretches.
Further, the two door leaves 2 of the fireproof door assembly structure are arranged inwards and oppositely in the rotating direction. The air can be guided to flow outwards when the state of the opening and closing door is changed.
The fireproof door assembly is characterized in that a door closer 21 is arranged in the fireproof door assembly structure, and two connecting ends of the door closer 21 are respectively connected to the door leaf 2 and the door shaft frame body 11 or a wall body in the structural groove 3 and used for controlling the opening and closing of the door leaf 2.
The fireproof door assembly is characterized in that an electromagnetic door suction assembly is arranged in the fireproof door assembly structure, the electromagnetic door suction assembly comprises an electromagnetic door suction plate 22 arranged on the door leaf 2 and an electromagnetic door suction magnetic block 31 arranged on the inner wall body of the structure groove 3, and the electromagnetic door suction plate 22 and the electromagnetic door suction magnetic block 31 can be mutually butted and adsorbed together. When the door leaf 2 of the fireproof door assembly structure is rotated to the structure groove 3 and is in a normally open state, the electromagnetic door suction plate 22 and the electromagnetic door suction magnetic block 31 are adsorbed together to enable the door leaf 2 to be in a stable opening state, and loss of the door leaf caused by collision, vibration and the like of the door leaf 2 is prevented.
Further, the electromagnetic door stopper assembly further comprises a spring damper 32, wherein the spring damper 32 is fixed on the wall body in the structural groove 3 and is positioned between the electromagnetic door stopper 31 and the wall body of the structural groove 3.
Preferably, the number of the electromagnetic door stopper assemblies is two, and the two electromagnetic door stopper assemblies are respectively positioned above and below the door leaf 2. In addition, the electromagnetic door stopper assembly and the door closer 21 are respectively located at both lateral ends of the door leaf 2.
The fireproof structure of the utility model further comprises a controller 4, wherein the controller 4 can be respectively in signal control connection with the electromagnetic door magnetic attraction block 31 and the door closer 21 and respectively controls the electromagnetic door magnetic attraction block 31 and the door closer 21 to be opened and closed, and the controller 4 is simultaneously in signal connection with a station control room. After the controller 4 receives a subway fire alarm signal sent by a station control room, the electromagnetic door magnetic attraction blocks 31 on the corresponding sides of the ignition sections can be controlled to release the adsorption, and meanwhile, the door closer 21 is controlled to push the door leaf 2 to close, so that the fire-fighting linkage is realized, and the effect of blocking fire and smoke is achieved.
The fireproof damping cushion 12 is arranged on the connecting part of the door shaft frame body 11 and the door side frame body 13 of the separated door frame assembly 1 and the wall body respectively. The separated design of the separated door frame assembly 1 and the design of the fireproof damping pad 12 are helpful for reducing the vibration generated when the tunnel wind pressure acts on the door leaf 2.
The working principle of the utility model is as follows: under the normal working condition, the two door leaves 2 are kept in a normally open state under the action of respective electromagnetic door suction assemblies, the door leaves 2 are hidden in the structural grooves 3, the effect of tunnel wind pressure on the door leaves 2 is minimized through pressure relief, and meanwhile, the separated door frame assembly 1, the fireproof shock absorption pad 12 and the spring damper 32 play a shock absorption role; when a fire disaster occurs on a line at one side of the subway, the controller 4 receives a fire alarm signal of a control room, controls and releases the electromagnetic door suction plate 22 on the normally open communication channel door leaf 2 close to the fire side, and is closed but not locked under the action of the door closer 21, so that train passengers can be evacuated to the side without the fire disaster by pushing the door. Meanwhile, the controller 4 controls the normally open type electromagnetic door attraction block 31 on the non-ignition side to strengthen the attraction force on the electromagnetic door attraction plate 22, so that the fireproof door on the non-ignition side is firmly positioned at a normally open position, and after the fire is relieved, the two fireproof door assembly structures are restored to be in a normally open state.
In conclusion, the normally open fire-proof structure of the communication channel provided by the utility model keeps the opening state under the normal condition, can eliminate the tunnel wind pressure generated by the train during the operation of the fire-proof door, and overcomes the defect that the existing fire-proof door is deformed or even falls off due to the repeated tunnel wind pressure; meanwhile, the fireproof door is linked with a fire protection system, and under the condition of fire or other emergency, the fireproof door can be quickly converted into a normally closed state according to an instruction, so that people are evacuated, smoke is prevented from spreading, and the fire protection requirement is met.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. A normally open type fireproof structure of a subway interval communication channel comprises two fireproof door assembly structures arranged on a channel main body structure (5), wherein the two fireproof door assembly structures are in 180-degree rotational symmetry, each fireproof door assembly structure comprises a door leaf (2) and a separated door frame assembly (1), each separated door frame assembly (1) is divided into a door shaft frame body (11) and a door side frame body (13), each door shaft frame body (11) is rotatably connected with one side of the end part of each door leaf (2), a structural groove (3) is formed in one side wall body of the channel main body structure (5), each door shaft frame body (11) is arranged inside the corresponding structural groove (3), each door leaf (2) can enter the corresponding structural groove (3) through rotation, each door side frame body (13) is located on the side wall body, opposite to the corresponding structural groove (3), of the channel main body structure (5), the door leaf (2) can be brought into contact with the door-side frame (13) by rotation.
2. The constantly-open fire protection structure for subway zone communication channel as claimed in claim 1, wherein said two door leaves (2) of said fire protection door assembly structure are set in opposite directions in the direction of rotation.
3. The constantly-open fireproof structure of the metro section communication channel according to claim 1, wherein a door closer (21) is arranged in the fireproof door assembly structure, and two connection ends of the door closer (21) are respectively connected to the door leaf (2) and the wall body in the door shaft frame body (11) or the structure groove (3) and used for controlling the opening and closing of the door leaf (2).
4. The constantly-open fireproof structure of the metro section communication channel according to claim 3, wherein an electromagnetic door suction assembly is arranged in the fireproof door assembly structure, the electromagnetic door suction assembly comprises an electromagnetic door suction plate (22) arranged on the door leaf (2) and an electromagnetic door suction block (31) arranged on the inner wall body of the structure groove (3), and the electromagnetic door suction plate (22) and the electromagnetic door suction block (31) can be mutually butted and adsorbed together.
5. The constantly-open fireproof structure of the metro section communication channel according to claim 4, wherein the electromagnetic door stopper assembly further comprises a spring damper (32), and the spring damper (32) is fixed on the wall body in the structural groove (3) and is located between the electromagnetic door stopper (31) and the wall body of the structural groove (3).
6. The constantly-open fireproof structure for the subway interval communication channel as claimed in claim 4, wherein the number of said electromagnetic door stopper components is two, and said two components are respectively located above and below the door leaf (2).
7. The constantly-open fireproof structure for the subway interval communication channel as claimed in claim 4, wherein said electromagnetic door stopper assembly and said door closer (21) are respectively located at the two lateral ends of the door leaf (2).
8. The constantly-open fire protection structure of the subway interval communication channel as claimed in claim 4, wherein the fire protection structure of the utility model further comprises a controller (4), the controller (4) can be respectively connected with the electromagnetic door magnetic attraction block (31) and the door closer (21) in a signal control manner and respectively controls the electromagnetic door magnetic attraction block (31) and the door closer (21) to be opened and closed, and the controller (4) is simultaneously connected with a station control room in a signal manner.
9. The constantly-open fireproof structure for the subway interval communication channel as claimed in claim 1, wherein the connection parts of the door shaft frame (11) and the door side frame (13) of the separated door frame assembly (1) and the wall are respectively provided with fireproof shock-absorbing pads (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120453910.0U CN215595394U (en) | 2021-03-02 | 2021-03-02 | Normally open type fireproof structure of subway interval communication channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120453910.0U CN215595394U (en) | 2021-03-02 | 2021-03-02 | Normally open type fireproof structure of subway interval communication channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215595394U true CN215595394U (en) | 2022-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120453910.0U Active CN215595394U (en) | 2021-03-02 | 2021-03-02 | Normally open type fireproof structure of subway interval communication channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215595394U (en) |
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2021
- 2021-03-02 CN CN202120453910.0U patent/CN215595394U/en active Active
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