CN219316813U - Civil air defense door - Google Patents

Abstract

The utility model discloses a civil air defense door, comprising: the door frame comprises a frame beam positioned at the top, and the frame beam comprises a first surface and a second surface which are perpendicular to the opening direction of the door frame; the airtight door is hinged on the door frame and positioned on the first surface side; the fireproof rolling curtain is arranged on the frame beam and can be used for lowering and closing the cavity of the door frame; the frame beam is inwards provided with a mounting part from the second face along the opening direction of the door frame, the mounting part is communicated with the cavity of the door frame, and the fireproof rolling curtain is arranged in the mounting part. According to the utility model, the airtight door and the fireproof roller shutter are respectively arranged on the two opposite sides of the door frame, the airtight protection performance of the civil air defense door can be effectively improved through the dual structure, the optimization of the variable cross section of the frame beam can be realized, the airtight door is installed on one side of the frame beam, the fireproof roller shutter is embedded into the saved installation part on the other side, the underground space is efficiently utilized, the economic rationality of the underground civil air defense engineering is improved, the stress rule is met, the manufacturing cost is lower, and the implementation is easy.

Description

Civil air defense door

Technical Field

The utility model relates to the technical field of civil air defense engineering, in particular to a civil air defense door.

Background

The civil air defense engineering is simply referred to as civil air defense engineering, and refers to an underground protective building which is independently constructed for guaranteeing the shielding of fight time personnel and materials, the command of civil air defense and medical aid, and a basement which is constructed by combining with a ground building and can be used for air defense during the fight time.

The civil air defense engineering generally needs to be provided with a civil air defense door, and the civil air defense door has the functions of preventing fire from spreading and smoke from spreading besides the function of a common door, so that fire can be prevented from spreading within a certain time, people can be ensured to be evacuated, and the sealing effect of the existing civil air defense door is poor, so that the existing civil air defense door is difficult to meet the expected civil air defense requirement.

Accordingly, there is a need for an improvement over the prior art to overcome the deficiencies described in the prior art.

Disclosure of Invention

The utility model aims to provide a civil air defense door so as to solve the problems.

The utility model aims at realizing the following technical scheme: a civil air defense door comprising: the door frame is arranged on a wall body of the civil air defense project and comprises a frame beam positioned at the top, and the frame beam comprises a first face and a second face which are perpendicular to the opening direction of the door frame; the airtight door is hinged to the door frame and is positioned on the first surface side; the fireproof rolling curtain is arranged on the frame beam and can be used for lowering and sealing the cavity of the door frame; the frame beam is inwards provided with a mounting part from the second face along the opening direction of the door frame, the mounting part is communicated with the cavity of the door frame, and the fireproof rolling curtain is arranged in the mounting part.

Further, the mounting part has a height of 600mm and a width of 200mm to 300mm.

Further, the frame beam comprises outer stirrups filled with concrete to form the frame beam.

Further, the cross section of the frame beam comprises an upper section and a lower section, from which the outer stirrup section is anchored in the upper section.

Further, the outer stirrup part stretches into the roof of civil air defense engineering.

Further, the door frame further comprises two frame columns, the tops of the two frame columns are connected to two sides of the frame beam respectively, the airtight door is hinged to the frame columns, and the width w1 of the top surface of the frame beam is identical to the column width of the frame column.

Further, the door frame further comprises a movable threshold, and the movable threshold is movably arranged on the airtight door and can be lowered to the ground or lifted from the ground.

Further, the airtight door is a bidirectional stress double-leaf protection airtight door.

Further, the number of the valve sills is two, the valve sills are respectively arranged on two door leaves of the airtight door, and lifting devices for driving the valve sills to lift are arranged on the two door leaves.

Further, the fireproof roller shutter comprises a winding device fixed at the installation part and a roller shutter body wound in the winding device, and a guide rail for guiding the roller shutter body to lift along the vertical direction is arranged on the frame column.

Compared with the prior art, the utility model has the following beneficial effects: according to the utility model, the airtight door and the fireproof roller shutter are respectively arranged on the two opposite sides of the door frame, the airtight protection performance of the civil air defense door can be effectively improved by the double structure, the frame beam of the door frame is provided with the mounting part, so that the optimization of the variable cross section of the frame beam is realized, the airtight door is mounted on one side of the frame beam, the fireproof roller shutter is embedded in the saved mounting part on the other side, the underground space is effectively utilized, the economic rationality of underground civil air defense engineering is improved, the stress rule is met, the manufacturing cost is lower, and the implementation is easy.

Drawings

Fig. 1 is a schematic top view of the inventive air defense door.

Fig. 2 is a partial enlarged view of fig. 1 at a.

Fig. 3 is a schematic cross-sectional view of a frame beam according to the utility model in a side view.

Fig. 4 is a schematic view of the structure of the air-defense door of the present utility model in the front view direction.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not limiting. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present application are shown in the drawings. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The terms "comprising" and "having" and any variations thereof herein are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

Referring to fig. 1, 3 and 4, a civil air defense door according to a preferred embodiment of the present utility model includes: the door frame 100 is arranged on a wall body of the civil air defense project, the door frame 100 comprises a frame beam 1 positioned at the top, and the frame beam 1 comprises a first surface 11 and a second surface 12 which are perpendicular to the arrangement direction of the door frame 100; a hermetic door 200 hinged to the door frame 100 and located on the first surface 11 side; and a fire-proof roll screen 300 provided on the frame beam 1, which can be lowered and close the cavity of the door frame 100; wherein, the frame beam 1 is provided with a mounting part 13 along the opening direction of the door frame 100 inwards from the second surface 12, the mounting part 13 is communicated with the cavity of the door frame 100, and the fireproof rolling shutter 300 is arranged in the mounting part 13.

According to the utility model, the airtight door 200 and the fireproof roller shutter 300 are respectively arranged on two opposite sides of the door frame 100, the airtight protection performance of the civil air defense door can be effectively improved by the double structure, the mounting part 13 is arranged on the frame beam 1 of the door frame 100, so that the optimization of the variable cross section of the frame beam 1 is realized, the airtight door 200 is mounted on one side of the frame beam 1, the fireproof roller shutter 300 is embedded in the saved mounting part 13 on the other side, the underground space is effectively utilized, the economic rationality of underground civil air defense engineering is improved, the stress rule is met, the manufacturing cost is lower, and the implementation is easy.

Further, the door frame 100 further includes two frame posts 2, the tops of the frame posts 2 are respectively connected to two sides of the frame beam 1, and the airtight door 200 is hinged to the frame posts 2.

Further, the height of the mounting portion 13 is 600mm and the width is 200 to 300mm. The width w1 of the top surface of the frame beam 1 is the same as the column width of the frame column 2. Specifically, since the frame beam 1 is provided with the mounting portion 13, the cross section of the frame beam 1 is divided into an upper section 1a and a lower section 1b, the width (i.e. w 1) of the upper section 1a is the same as the column width of the frame column 2, the height of the upper section 1a is H1, the civil air defense engineering layer height is H2, the height of the airtight door 200 is H3, h1=h2-H3-600 mm, and the height of the lower section 1b (i.e. the height of the mounting portion) is H4, h4=600mm. Because the connection part of the frame beam 1 and the airtight door 200 needs to bear the war equivalent static load transmitted by the airtight door 200, the bending moment of the frame beam 1 is minimum at the inner side of the door frame 100, and the junction part between the top surface of the frame beam 1 and the top plate 400 of the civil air defense project is maximum, the variable cross section frame beam 1 is adopted, so that the small-bending moment cross section is small, the large-bending moment cross section is large, the stress is reasonable, and the cross section utilization rate is maximized.

Preferably, the frame beam 1 comprises outer stirrups 14, the outer stirrups 14 being filled with concrete to form the frame beam 1. The outer stirrup 14 extends partially into the roof 400 of the civil air defense project to improve the connection strength and reliability. The outer contour of the outer stirrup 14 is similar or identical to the outer contour of the frame beam 1, the outer stirrup 14 is bent and/or welded from a steel plate, and the outer stirrup 14 is anchored in the upper section 1a from the lower section 1b, so that the connection strength of the upper and lower sections is further improved. The optimized section form of the frame beam 1 is matched, and the gun-type outer stirrup 14 is adopted to meet the requirement that the top of the door frame 100 at the airtight door 200 bears the equivalent static load in the war, so that the airtight door is economical and feasible.

Further, the door frame 100 further includes a movable threshold 3, and the movable threshold 3 is movably disposed on the airtight door 200 and can be lowered to the ground or raised from the ground. When in a normal state, the valve threshold 3 is lifted from the ground, so that normal passing of pedestrians and vehicles is facilitated; when the sealing is required, the sealing door 200 is closed and the threshold 3 is moved to the ground to improve the sealing effect of the bottom of the sealing door 200.

In this embodiment, the airtight door 200 is specifically a two-way forced dual-leaf protection airtight door, which includes two door leaves 4 that are opened in opposite directions, and lifting devices (not shown) that drive the movable door sill 3 to lift are disposed on the two door leaves 4. The lifting device comprises a screw rod assembly (not shown) arranged in the vertical direction and a driving motor in transmission connection with the screw rod assembly, the valve threshold 3 is connected with a nut of the screw rod assembly, and the driving motor can drive the screw rod of the screw rod assembly to rotate so as to drive the movable threshold 3 to lift. Preferably, a recess (not shown) for receiving the threshold 3 may be further provided on the ground, and when the threshold 3 is lowered, the threshold 3 is partially embedded in the recess to improve sealability with the ground. Preferably, the side of the door leaf 4 remote from the frame column 2 is provided with a fire protection strip 5, the fire protection strip 5 extending from the top surface of the door leaf 4 to the bottom surface of the door leaf 4. The two door leaves 4 are provided with fireproof strips 5, and after the door leaves 4 are closed, the fireproof strips 5 on the two door leaves 4 are mutually extruded so as to reduce gaps between the door leaves 4.

Further, referring to fig. 2, the fire-proof roll screen 300 includes a roll-up device 6 fixed at the mounting portion 13 and a roll screen body 7 wound in the roll-up device 6, and a guide rail 8 for guiding the roll screen body 7 to be lifted in a vertical direction is provided on the frame post 2. Preferably, the shutter body 7 may be provided with rollers (not shown) in sliding engagement with the guide rail 8.

In the design of the utility model, H1 is taken as the height of the upper section 1a of the frame beam 1, and the column width of the frame column 2 is taken as the width of the upper section 1a of the frame beam 1; the variable cross section frame beam 1 is designed by taking 200 mm-300 mm as the width and 600mm as the height as the lower cross section 1b of the frame beam 1 in accordance with the installation space requirement of the fireproof roller shutter 300; when the integral structure is modeled, the upper section 1a is used as an input model of the frame beam 1 to calculate reinforcement; and the reinforcement values of the upper door frame wall of the airtight door 200 and the reinforcement values of the variable cross section under the equivalent static load of the war are calculated according to the upper cross section 1a and the lower cross section 1b respectively, and the two reinforcement values are taken as the reinforcement values of the outer stirrups 14 of the frame beam 1.

The foregoing is merely one specific embodiment of the utility model, and any modifications made in light of the above teachings are intended to fall within the scope of the utility model.

Claims (10)

1. A civil air defense door, comprising:

the door frame (100) is arranged on a wall body of the civil air defense project, the door frame (100) comprises a frame beam (1) positioned at the top, and the frame beam (1) comprises a first surface (11) and a second surface (12) which are perpendicular to the opening direction of the door frame (100);

a hermetic door (200) hinged to the door frame (100) and located on the first face (11) side; and

a fire-proof rolling shutter (300) arranged on the frame beam (1) and capable of being lowered to close the cavity of the door frame (100);

the frame beam (1) is provided with a mounting part (13) inwards from the second surface (12) along the opening direction of the door frame (100), the mounting part (13) is communicated with the cavity of the door frame (100), and the fireproof rolling curtain (300) is arranged in the mounting part (13).

2. A civil air defense door according to claim 1 wherein the mounting section (13) has a height of 600mm and a width of 200mm to 300mm.

3. The civil air defense door according to claim 1 wherein the frame beam (1) comprises outer stirrups (14), the outer stirrups (14) being filled with concrete to form the frame beam (1).

4. A civil air defense door according to claim 3, wherein the cross section of the frame beam (1) comprises an upper section (1 a) and a lower section (1 b), the outer stirrup (14) being anchored in the upper section (1 a) partly from the lower section (1 b).

5. A civil air defense door according to claim 3 wherein the outer stirrup (14) extends partially into the roof (400) of the civil air defense.

6. The civil air defense door according to claim 1, wherein the door frame (100) further comprises frame columns (2), the number of the frame columns (2) is two, the tops of the frame columns (2) are respectively connected to two sides of the frame beams (1), the airtight door (200) is hinged to the frame columns (2), and the width w1 of the top surface of the frame beams (1) is the same as the column width of the frame columns (2).

7. The civil air defense door according to claim 1 wherein the door frame (100) further comprises a movable threshold (3), the movable threshold (3) being movably mounted on the airtight door (200) and being lowerable to or raisable from the ground.

8. The civil air defense door according to claim 7 wherein the containment door (200) is a two-way forced double-leaf protective containment door.

9. The civil air defense door according to claim 8, wherein the number of the valve sills (3) is two, and the valve sills are respectively arranged on two door leaves (4) of the airtight door (200), and lifting devices for driving the valve sills (3) to lift are respectively arranged on the two door leaves (4).

10. A civil air defense door according to claim 6, wherein the fire-proof rolling shutter (300) comprises a rolling device (6) fixed at the mounting part (13) and a rolling shutter body (7) wound in the rolling device (6), and a guide rail (8) for guiding the rolling shutter body (7) to lift in the vertical direction is arranged on the frame column (2).

Images