CN113216794A - People's air defense door with movable doorsill - Google Patents
People's air defense door with movable doorsill Download PDFInfo
- Publication number
- CN113216794A CN113216794A CN202110519447.XA CN202110519447A CN113216794A CN 113216794 A CN113216794 A CN 113216794A CN 202110519447 A CN202110519447 A CN 202110519447A CN 113216794 A CN113216794 A CN 113216794A
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- Prior art keywords
- door
- door leaf
- contraction
- frame
- doorsill
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B1/00—Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
- E06B1/70—Sills; Thresholds
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C19/00—Other devices specially designed for securing wings, e.g. with suction cups
- E05C19/16—Devices holding the wing by magnetic or electromagnetic attraction
- E05C19/161—Devices holding the wing by magnetic or electromagnetic attraction magnetic gaskets
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/32—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing
- E06B3/34—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with only one kind of movement
- E06B3/36—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with only one kind of movement with a single vertical axis of rotation at one side of the opening, or swinging through the opening
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/16—Sealing arrangements on wings or parts co-operating with the wings
- E06B7/22—Sealing arrangements on wings or parts co-operating with the wings by means of elastic edgings, e.g. elastic rubber tubes; by means of resilient edgings, e.g. felt or plush strips, resilient metal strips
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
Abstract
The application relates to a movable doorsill civil air defense door, which comprises a door leaf and a door frame, wherein the door leaf is rotatably connected with the door frame through a rotating shaft, a lower doorsill is arranged below the door frame and is used for being embedded in the ground, a hollow groove communicated with the interior of the lower doorsill is formed in the lower doorsill upwards, an air-tight device is arranged in the lower doorsill and comprises a rubber pad and an extrusion device, the extrusion device is used for extruding the rubber pad towards the door leaf, a contraction device which is used for abutting against and contracting the door leaf is arranged in the lower doorsill, when the contraction device is unfolded, the retractor is used for abutting against the upper surface of the rubber pad, when the retractor is stored, the retractor is separated from the rubber pad in abutting against the rubber pad, a telescopic device used for the retractor to penetrate out the groove is arranged in the retractor, and a shielding device used for shielding the groove and used for abutting against the retractor is detachably connected to the lower doorsill. This application has the effect of being convenient for install the threshold of living when closing the people's air defense door.
Description
Technical Field
The application relates to the field of civil air defense doors, in particular to a movable threshold civil air defense door.
Background
At present, a civil air defense door is an important facility for civil air defense engineering protection, and people, materials, equipment and the like in the civil air defense are protected from being damaged by war by closing the civil air defense to seal the protection engineering in war, so that the passing of the people is required to be met at ordinary times.
In the related art, in a general civil air defense door with a live door sill, the live door sill is connected to the civil air defense door through bolts, and the live door sill is detached and installed to the ground in the process of imminent war so as to seal a gap between the civil air defense door and the ground.
Aiming at the related technology, the movable doorsill is disassembled and assembled through manpower, and the inventor thinks that the defects of inconvenient installation, time waste and labor waste exist.
Disclosure of Invention
In order to install the threshold that lives when closing the civil air defense door for the convenience, this application provides a threshold that lives people's air defense door.
The application provides a threshold people's air defense door alive adopts following technical scheme:
a civil air defense door with a movable threshold comprises a door leaf and a door frame, wherein the door leaf is rotatably connected with the door frame through a rotating shaft, a lower doorsill is arranged below the door frame and is embedded in the ground, the lower doorsill is hollow and is provided with a slot upwards communicated with the interior of the lower doorsill, an airtight device is arranged in the lower doorsill and comprises a rubber pad and an extrusion device, the extrusion device is used for extruding the rubber pad towards the door leaf, a contraction device which is used for abutting against and contracting the door leaf is arranged in the lower doorsill, when the contraction device is unfolded, the contraction device is used for abutting against the upper surface of the rubber pad, when the contraction device is stored, the contraction device is separated from the rubber pad and is internally provided with a telescopic device for the contraction device to penetrate out of the groove, and the lower doorsill is detachably connected with a shielding device which is used for shielding the open groove and is used for being abutted against the contraction device.
Through adopting above-mentioned technical scheme, when needs are closed the door leaf, at the in-process that the door leaf rotated and is closed, be used for sheltering from grooved sheltering from device and dismantle down on the threshold, make the telescoping device break away from the butt, wear out the fluting with the constriction device through the telescoping device, and make constriction device and door leaf looks butt, at the in-process that the door leaf closed completely, the constriction device accomodates, the constriction device breaks away from the butt with the rubber pad, the rubber pad that breaks away from behind the butt pressurizes the rubber pad towards the lower terminal surface of door leaf under extrusion device's effect, thereby reduce the clearance between terminal surface and the ground under the door leaf, improve the gas tightness after the door leaf is closed, therefore, only need the user can install the threshold at the in-process of closing the door leaf, thereby be convenient for install the threshold when closing people's air defense door.
Optionally, the extruding device comprises an extruding plate and a plurality of first springs, the lower end of each first spring is connected with the lower bottom surface inside the lower doorsill, the upper end of each first spring is connected with the extruding plate, and the upper surface of the extruding plate is connected with the rubber pad.
By adopting the technical scheme, after the rubber pad is separated from the contact with the contraction device, the compressed first spring begins to extend, and pushes the extrusion plate to drive the rubber pad to move towards the lower end face of the door leaf and to be in contact with the lower end face of the door leaf, so that the gap between the lower end face of the door leaf and the ground is reduced.
Optionally, a magnet for attracting the lower end surface of the door leaf is arranged on the extrusion plate.
Through adopting above-mentioned technical scheme, after the door leaf was closed, the stripper plate drove the rubber pad under the effect of first spring and supports and press towards the door leaf lower extreme face, and magnet on the rethread stripper plate adsorbs mutually with stripper plate lower extreme face, further extrudees the rubber pad to further reduce the clearance between door leaf and the ground.
Optionally, the contraction device comprises two opposite contraction frames which are sequentially arranged from top to bottom, each contraction frame comprises two connecting rods and a first telescopic rod, the two connecting rods and the first telescopic rod are sequentially and mutually connected in an end-to-end rotating manner, the first telescopic rod is used for abutting against the door leaf, one connecting rod of the two connecting rods is arranged along the length direction of the lower doorsill, the telescopic device comprises a second telescopic rod, a second spring for extending the length of the second telescopic rod is arranged in the second telescopic rod, second telescopic rods are arranged between two connecting rods which are opposite up and down and between two first telescopic rods which are opposite up and down, one connecting rod at the lower layer is fixed in the lower doorsill along the length direction of the lower doorsill, when the retractable frame is not abutted against the door leaf, the retractable frame is triangular, and when the door leaf is closed, the retractable frame is abutted against the door leaf to form a straight line.
Through adopting above-mentioned technical scheme, dismantle and shelter from the device, the second telescopic link after breaking away from the butt extends under the effect of second spring, make the second telescopic link drive upper shrink frame and wear out the fluting, at the in-process of closing the door leaf, after the door leaf and upper shrink frame's first telescopic link looks butt, be connected with the rotation of two connecting rods respectively through first telescopic link, and the rotation between two connecting rods is connected, first telescopic link begins to extend, first telescopic link respectively with two connecting rods between the contained angle reduce, the contained angle between two connecting rods increases, make upper shrink frame shrink be a straight line. Simultaneously because all be provided with the second telescopic link between two relative connecting rods from top to bottom and between two relative first telescopic links from top to bottom, so carry out the in-process of the change of shape at upper shrink frame, can drive lower floor's shrink frame and carry out same change, so lower floor's shrink frame is a straight line after following upper shrink frame and receiving the door leaf butt, make lower floor's shrink frame and rubber pad break away from the butt, the rubber pad after breaking away from the butt carries out the butt towards the lower terminal surface of door leaf through the promotion of stripper plate under the effect of first spring, thereby reduce the clearance between door and window and the ground.
Optionally, a torsion spring for retracting the frame to return to a triangle shape is arranged at a rotational connection position of the connecting rod and the first telescopic rod.
Through adopting above-mentioned technical scheme, through being provided with the torsional spring, open the back at the door leaf to press first spring, make the rubber pad after reseing, the shrink frame can reset into triangle-shaped again under the effect of torsional spring, thereby make the shrink frame that resets into triangle-shaped can carry out the butt again to the rubber pad, so that when closing the door leaf next time, the rubber pad can continue to carry out the butt with the lower terminal surface of door leaf after, reduce the clearance between terminal surface and the ground under the door leaf.
Optionally, the door leaf is provided with a receiving groove for receiving a linear contraction frame.
Through adopting above-mentioned technical scheme, through being provided with the holding tank, after upper shrink frame contracts and accomplishes and be a straight line, upper shrink frame contracts the back and holds in the holding tank to make upper shrink frame can not lead to the fact the influence to closing completely of door leaf.
Optionally, the shielding device comprises a shielding plate, a rack and a gear, the rotating shaft is rotatably connected in the door frame, the gear is coaxially sleeved on the rotating shaft, the rack is arranged on the side edge of the shielding plate and is used for being meshed with the gear, a sliding groove used for accommodating the shielding plate is formed in the lower door sill along the width direction of the lower door sill, and the shielding plate is slidably connected with the sliding groove.
Through adopting above-mentioned technical scheme, the in-process of closing at the door leaf, the axis of rotation rotates, the axis of rotation drives the gear and rotates, the width direction of threshold slides down along with gear engaged with rack, thereby drive the shielding plate and open, because the length of rack is enough long, so rotate the in-process of closing at the door leaf, the shielding plate can open completely, expose the fluting, thereby make shielding plate and constriction device break away from the butt, the constriction device of being convenient for can pass out the fluting under the effect of telescoping device.
Optionally, the lower surface of the shielding plate is embedded and rotatably connected with a ball for abutting against the contraction frame.
Through adopting above-mentioned technical scheme, at the in-process that the shielding plate slided and opens, through being provided with the ball, convert the sliding friction between shielding plate and the shrink frame into the rolling friction between shielding plate and the ball to reduce the frictional force that the shielding plate received when sliding.
In summary, the present application includes at least one of the following beneficial technical effects:
1. in the process of rotating and closing the door leaf, a shielding device used for shielding the open groove on the lower doorsill is detached, the telescopic device is separated from butt, the contraction device penetrates out of the open groove through the telescopic device and is abutted to the door leaf, the contraction device is accommodated in the process of completely closing the door leaf, the contraction device is separated from the rubber pad in butt, the rubber pad separated from butt is pressed towards the lower end face of the door leaf under the action of the extrusion device, so that the gap between the lower end face of the door leaf and the ground is reduced, and the air tightness of the closed door leaf is improved;
2. the shielding device is disassembled, the second telescopic rod which is separated from the butt joint extends under the action of the second spring, so that the second telescopic rod drives the upper contraction frame to penetrate out of the slot, in the process of closing the door leaf, the door leaf is abutted with the first telescopic rod of the upper contraction frame and then is respectively connected with the two connecting rods through the first telescopic rod and is rotationally connected between the two connecting rods, the first telescopic rod starts to extend, the included angle between the first telescopic rod and the two connecting rods is reduced, the included angle between the two connecting rods is increased, meanwhile, because the second telescopic rods are arranged between the two connecting rods which are opposite up and down and between the two first telescopic rods which are opposite up and down, the lower contraction frame can be driven to carry out the same change in the process of changing the shape of the upper contraction frame, and the lower contraction frame is in a straight line after being abutted by the door leaf along with the upper contraction frame, make lower floor's shrink frame and rubber pad break away from the butt, the rubber pad after breaking away from the butt carries out the butt towards the lower terminal surface of door leaf through the promotion of stripper plate under the effect of first spring to reduce the clearance between door and window and the ground.
Drawings
Fig. 1 is an overall structure schematic diagram of a movable threshold civil air defense door in an embodiment of the application.
Fig. 2 is an enlarged schematic view of a portion a in fig. 1.
Fig. 3 is an exploded view of the internal structure of the lower door sill according to the embodiment of the present application.
Fig. 4 is an enlarged schematic view of a portion B in fig. 3.
Description of reference numerals: 1. a door leaf; 2. a door frame; 3. a rotating shaft; 4. a lower threshold; 5. grooving; 6. an air-tight device; 61. a rubber pad; 62. an extrusion device; 621. a pressing plate; 622. a first spring; 7. a retractor; 71. retracting the frame; 711. a connecting rod; 712. a first telescopic rod; 8. a second telescopic rod; 9. a shielding device; 91. a baffle plate; 92. a rack; 93. a gear; 10. a magnet; 12. a second spring; 13. a torsion spring; 14. accommodating grooves; 15. and a ball.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses threshold people's air defense door alive. Combine fig. 1 and fig. 2, a threshold people's air defense door includes door leaf 1 and door frame 2, and door frame 2 is embedded and is rotated along its direction of height and is connected with axis of rotation 3, and door leaf 1 rotates through axis of rotation 3 and door frame 2 to be connected, and door frame 2 is used for being provided with the sealing strip that is used for reducing the clearance between door frame 2 and the door leaf 1 with the one side of door leaf 1 looks butt. Lower threshold 4 is welded to door frame 2 below, and lower threshold 4 is used for the installation to inlay in the ground. The lower threshold 4 is hollow, a slot 5 (see fig. 3) communicated with the inside of the lower threshold 4 is formed in the upper end face of the lower threshold 4, and the lower threshold 4 is slidably connected with a shielding device 9 used for shielding the slot 5 along the width direction of the lower threshold 4.
With reference to fig. 1 and 2, the shielding device 9 includes a shielding plate 91, a rack 92 and a gear 93, the rotating shaft 3 is rotatably connected in the door frame 2, the gear 93 is coaxially sleeved on the lower end of the rotating shaft 3, the rack 92 is welded on the side of the shielding plate 91 and is engaged with the gear 93, in this embodiment, the rack 92 is long enough, so that the rack 92 and the gear 93 are not separated during the process of opening the door 1 and closing the door, and the gear 93 is locked to affect the rotation of the rotating shaft 3. A sliding groove for accommodating the shielding plate 91 is formed in one side surface of the lower threshold 4 away from the rack 92 along the width direction of the side surface, and one side surface of the shielding plate 91 is slidably connected with the sliding groove. The lower surface of the shielding plate 91 is embedded and rotatably connected with a plurality of balls 15.
Referring to fig. 3 and 4, the air-tight device 6 is provided inside the lower threshold 4, and the air-tight device 6 includes a rubber pad 61 and a pressing device 62. The pressing device 62 includes a pressing plate 621 and six first springs 622, a lower end of each first spring 622 is welded to a lower bottom surface of the inside of the lower door sill 4, an upper end of each first spring 622 is welded to the pressing plate 621, a magnet 10 is fixedly mounted on an upper surface of the pressing plate 621, and the door leaf 1 is made of metal capable of being adsorbed by the magnet 10, so that the magnet 10 is used for adsorbing a lower end surface of the door leaf 1 (see fig. 1). The rubber pad 61 is fixedly bonded on the upper surface of the magnet 10, and when the door 1 is closed, the first spring 622 can push the rubber pad 61 above the magnet 10 to extrude towards the lower end surface of the door 1 through the extrusion plate 621, so as to reduce the gap between the door 1 and the ground when being closed again.
With reference to fig. 3 and 4, a retraction device 7 for abutting against and retracting the door leaf 1 is disposed in the lower sill 4, and the retraction device 7 includes two opposite retraction frames 71 disposed in sequence from top to bottom. Each contraction frame 71 comprises two connecting rods 711 and a first telescopic rod 712, the two connecting rods 711 and the first telescopic rod 712 are sequentially connected in a rotating mode through hinges, and a torsion spring 13 used for enabling the contraction frame 71 to be integrally triangular is sleeved at the joint of the connecting rods 711 and the first telescopic rod 712. The first telescopic rod 712 of the upper retractable frame 71 is used for abutting against the door leaf 1, and one connecting rod 711 of the two connecting rods 711 of the lower retractable frame 71 is arranged along the length direction of the lower threshold 4 and welded with the lower threshold 4.
With reference to fig. 3 and 4, a telescopic device for penetrating the contraction device 7 out of the slot 5 is arranged in the contraction device 7, the telescopic device comprises a second telescopic rod 8, and the second telescopic rods 8 are arranged between two vertically opposite connecting rods 711 and between two vertically opposite first telescopic rods 712. The second telescopic rod 8 comprises a first supporting rod and a second supporting rod, the first supporting rod penetrates through and slides in the second supporting rod, one end of the first supporting rod penetrates out of the second supporting rod and is welded with the upper-layer shrinkage frame 71, a second spring 12 used for abutting against the first supporting rod penetrates through the second supporting rod, the lower end of the second supporting rod is welded with the lower-layer shrinkage frame 71, and the upper-layer shrinkage frame 71 is abutted against the shielding plate 91 under the action of the second spring 12. When the first extension rod 712 of the upper contraction frame 71 is not abutted by the door 1, and after the upper contraction frame 71 is abutted by the door 1 and when the door 1 is completely closed, the upper contraction frame 71 is abutted by the door 1 to be in a straight line, and the door 1 is provided with the accommodating groove 14 for accommodating the straight contraction frame 71, so that the upper contraction frame 71 is accommodated in the accommodating groove 14, and the lower contraction frame 71 is accommodated in a straight line under the driving of the second extension rod 8, so that the lower contraction frame 71 is disengaged from the rubber pad 61 to be abutted (see fig. 1).
The implementation principle of this application embodiment a threshold people's air defense door alive does: when the door leaf 1 needs to be closed, in the rotating process of the door leaf 1, the door leaf 1 drives the rotating shaft 3 to rotate, the rotating shaft 3 drives the gear 93 to rotate, and the rack 92 meshed with the gear 93 slides along the width direction of the lower doorsill 4, so that the shielding plate 91 is driven to be opened. Since the length of the rack 92 is long enough, the shutter 91 can be fully opened to expose the slot 5 during the rotation closing and the closing of the door leaf 1.
In the process that the shielding plate 91 is completely opened and the slot 5 is exposed, the first telescopic rod 712 and the two connecting rods 711 of the upper contraction frame 71 are respectively separated from the shielding plate 91 and abutted against, so that the second telescopic rod 8 is extended under the action of the second spring 12 to drive the upper contraction frame 71 to penetrate out of the slot 5 and abut against the rotatably closed door leaf 1, after the first telescopic rod 712 abuts against the door leaf 1, the first telescopic rod 712 is respectively connected with the two connecting rods 711 in a rotating manner through the first telescopic rod 712 and the two connecting rods 711 in a rotating manner, the first telescopic rod 712 starts to extend, the included angle between the first telescopic rod 712 and the two connecting rods 711 is reduced, the included angle between the two connecting rods 711 is increased, and the upper contraction frame 71 is contracted to be in a straight line and is accommodated in the accommodating groove 14 in the door leaf 1. Meanwhile, the second telescopic rods 8 are arranged between the two connecting rods 711 opposite to each other up and down and between the two first telescopic rods 712 opposite to each other up and down, so that the lower-layer contraction frame 71 can be driven to change in the same way when the upper-layer contraction frame 71 changes in shape, and the lower-layer contraction frame 71 is in a straight line after being abutted by the door leaf 1 along with the upper-layer contraction frame 71, so that the lower-layer contraction frame 71 is separated from the rubber pad 61 for abutting.
Therefore, the rubber pad 61 which is separated from the abutment moves toward the lower end surface of the door 1 through the pressing plate 621 under the action of the extension of the first spring 622, the lower end surface of the door 1 is pressed, and simultaneously, under the action of the magnetic connection between the first magnet 10 and the second magnet 10, the rubber pad 61 is tightly pressed with the lower end surface of the door 1, so that the gap between the door 1 and the ground is reduced, and the closing of the door 1 and the installation of the threshold are completed.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a threshold people's air defense door alive which characterized in that: the door comprises a door leaf (1) and a door frame (2), wherein the door leaf (1) is rotatably connected with the door frame (2) through a rotating shaft (3), a lower doorsill (4) is arranged below the door frame (2), the lower doorsill (4) is embedded in the ground, a groove (5) communicated with the interior of the lower doorsill (4) is formed in the lower doorsill (4) in a hollow mode and upwards, an airtight device (6) is arranged in the lower doorsill (4), the airtight device (6) comprises a rubber pad (61) and an extrusion device (62), the extrusion device (62) is used for extruding the rubber pad (61) towards the door leaf (1), a contraction device (7) which is used for abutting against and contracting the door leaf (1) is arranged in the lower doorsill (4), when the contraction device (7) is unfolded, the contraction device (7) is used for abutting against the upper surface of the rubber pad (61), and when the contraction device (7) is stored, the retractable device is characterized in that the retractable device (7) is separated from the rubber pad (61) in a butting manner, a retractable device used for the retractable device (7) to penetrate out of the groove (5) is arranged in the retractable device (7), and a shielding device (9) used for shielding the groove (5) and used for being abutted against the retractable device (7) is detachably connected to the lower doorsill (4).
2. The threshold people's air defense door of claim 1, characterized in that: the extrusion device (62) comprises an extrusion plate (621) and a plurality of first springs (622), wherein the lower ends of the first springs (622) are connected with the lower bottom surface of the interior of the lower doorsill (4), the upper ends of the first springs (622) are connected with the extrusion plate (621), and the upper surface of the extrusion plate (621) is connected with the rubber pad (61).
3. The threshold people's air defense door of claim 2, characterized in that: the extrusion plate (621) is provided with a magnet (10) which is used for being adsorbed to the lower end face of the door leaf (1).
4. The threshold people's air defense door of claim 1, characterized in that: the contraction device (7) comprises two opposite contraction frames (71) which are sequentially arranged from top to bottom, each contraction frame (71) comprises two connecting rods (711) and a first telescopic rod (712), the two connecting rods (711) and the first telescopic rods (712) are sequentially and rotationally connected end to end, the first telescopic rods (712) are used for being abutted to the door leaf (1), any one connecting rod (711) of the two connecting rods (711) is arranged along the length direction of the lower doorsill (4), the expansion device comprises second telescopic rods (8), second springs (12) used for extending the length of the second telescopic rods (8) are arranged in the second telescopic rods (8), the second telescopic rods (8) are arranged between the two vertically opposite connecting rods (711) and between the two vertically opposite first telescopic rods (712), one connecting rod (711) at the lower layer is fixed in the lower doorsill (4) along the length direction of the lower doorsill (4), when the contraction frame (71) is not abutted against the door leaf (1), the contraction frame (71) is triangular, and when the door leaf (1) is closed, the contraction frame (71) is abutted against the door leaf (1) to form a straight line.
5. A threshold people's air defense door that lives of claim 4, characterized in that: and a torsion spring (13) for restoring the contraction frame (71) to a triangular shape is arranged at the rotary connection part of the connecting rod (711) and the first telescopic rod (712).
6. A threshold people's air defense door that lives of claim 4, characterized in that: the door leaf (1) is provided with an accommodating groove (14) for accommodating a linear contraction frame (71).
7. The threshold people's air defense door of claim 1, characterized in that: shelter from device (9) including shielding plate (91), rack (92) and gear (93), axis of rotation (3) are rotated and are connected in door frame (2), axis of rotation (3) are located to gear (93) coaxial cover on, rack (92) set up in the side of shielding plate (91) and are used for meshing mutually with gear (93), be provided with the spout that is used for shielding plate (91) to hold along its width direction in threshold (4) down, shielding plate (91) and spout sliding connection.
8. The threshold people's air defense door of claim 7, characterized in that: the lower surface of the shielding plate (91) is embedded and rotatably connected with a ball (15) which is used for being abutted against the contraction frame (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110519447.XA CN113216794B (en) | 2021-05-13 | 2021-05-13 | People's air defense door with movable doorsill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110519447.XA CN113216794B (en) | 2021-05-13 | 2021-05-13 | People's air defense door with movable doorsill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113216794A true CN113216794A (en) | 2021-08-06 |
| CN113216794B CN113216794B (en) | 2022-10-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110519447.XA Active CN113216794B (en) | 2021-05-13 | 2021-05-13 | People's air defense door with movable doorsill |
Country Status (1)
| Country | Link |
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| CN (1) | CN113216794B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116551284A (en) * | 2023-05-11 | 2023-08-08 | 兴化市兴东铸钢有限公司 | Welding device for splicing grate plates of grate cooler |
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|---|---|---|---|---|
| GB520933A (en) * | 1938-07-24 | 1940-05-08 | Karl Wilhelm Mauser | Improvements in and relating to gas-tight doors |
| EP0221207A1 (en) * | 1985-09-30 | 1987-05-13 | Derek Smith | Door sealing mechanism |
| CN206418927U (en) * | 2016-08-30 | 2017-08-18 | 绍兴金盾人防设备制造有限公司 | One kind sealing sound-absorbing closed guard gate |
| CN206942555U (en) * | 2017-07-21 | 2018-01-30 | 上海民防建筑研究设计院有限公司 | A kind of gateway double-leaf protective sealed door |
| CN207004358U (en) * | 2017-06-27 | 2018-02-13 | 浙江利明人防设备有限公司 | A kind of steel construction movable sill double-leaf protective hermatic door |
| CN108571266A (en) * | 2018-03-19 | 2018-09-25 | 杭州富阳富腾人防设备有限公司 | A kind of biparting people's air defense door of movable sill formula |
| CN207988863U (en) * | 2017-12-31 | 2018-10-19 | 天津翔瀚人防工程防护设备有限公司 | A kind of closed guard gate with shock wave resistance function |
| CN109372403A (en) * | 2018-12-21 | 2019-02-22 | 浙江众幸防护设备有限公司 | It is a kind of can quick closedown partition door |
| CN209494454U (en) * | 2018-11-01 | 2019-10-15 | 遵义固金人防工程科技有限公司 | A kind of movable sill double-leaf protective hermatic door |
| CN209510093U (en) * | 2018-12-03 | 2019-10-18 | 西安市双安基业人防工程有限公司 | Steel construction movable sill double-leaf protective sealed door |
| CN209653787U (en) * | 2018-12-10 | 2019-11-19 | 西安市正泰五防工程有限责任公司 | A kind of sealing protection door |
| CN209670793U (en) * | 2018-09-21 | 2019-11-22 | 四川鑫旺人防设备有限公司 | A kind of biparting movable sill airtight blast door |
| CN110529014A (en) * | 2019-08-02 | 2019-12-03 | 潜山县九鼎精密机械有限公司 | It is a kind of to have ventilation function and the strong closed guard gate of leakproofness is installed |
| CN209780648U (en) * | 2019-02-02 | 2019-12-13 | 上海四尊机电工程设备有限公司 | Anti-seismic self-adaptive steel structure movable threshold single-leaf protective airtight door |
| CN210858399U (en) * | 2019-07-06 | 2020-06-26 | 南通市规划设计院有限公司 | Movable double-leaf protection civil air defense door structure of threshold |
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| CN111472669A (en) * | 2020-04-15 | 2020-07-31 | 廖兴宝 | Protective equipment with large use space and automatic protection and early warning during danger |
| CN111535717A (en) * | 2020-05-25 | 2020-08-14 | 芜湖百益人防工程防护设备有限公司 | Self-buffering type anti-seismic civil air defense door |
| CN211714955U (en) * | 2019-11-30 | 2020-10-20 | 上海铭谷民防设备有限公司 | Civil air defense door with movable doorsill |
| CN211975062U (en) * | 2020-04-02 | 2020-11-20 | 四川博瑞人防工程有限公司 | Protective airtight partition door for civil air defense engineering of underground railway |
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| CN207004358U (en) * | 2017-06-27 | 2018-02-13 | 浙江利明人防设备有限公司 | A kind of steel construction movable sill double-leaf protective hermatic door |
| CN206942555U (en) * | 2017-07-21 | 2018-01-30 | 上海民防建筑研究设计院有限公司 | A kind of gateway double-leaf protective sealed door |
| CN207988863U (en) * | 2017-12-31 | 2018-10-19 | 天津翔瀚人防工程防护设备有限公司 | A kind of closed guard gate with shock wave resistance function |
| CN108571266A (en) * | 2018-03-19 | 2018-09-25 | 杭州富阳富腾人防设备有限公司 | A kind of biparting people's air defense door of movable sill formula |
| CN209670793U (en) * | 2018-09-21 | 2019-11-22 | 四川鑫旺人防设备有限公司 | A kind of biparting movable sill airtight blast door |
| CN209494454U (en) * | 2018-11-01 | 2019-10-15 | 遵义固金人防工程科技有限公司 | A kind of movable sill double-leaf protective hermatic door |
| CN209510093U (en) * | 2018-12-03 | 2019-10-18 | 西安市双安基业人防工程有限公司 | Steel construction movable sill double-leaf protective sealed door |
| CN209653787U (en) * | 2018-12-10 | 2019-11-19 | 西安市正泰五防工程有限责任公司 | A kind of sealing protection door |
| CN109372403A (en) * | 2018-12-21 | 2019-02-22 | 浙江众幸防护设备有限公司 | It is a kind of can quick closedown partition door |
| CN209780648U (en) * | 2019-02-02 | 2019-12-13 | 上海四尊机电工程设备有限公司 | Anti-seismic self-adaptive steel structure movable threshold single-leaf protective airtight door |
| CN210858399U (en) * | 2019-07-06 | 2020-06-26 | 南通市规划设计院有限公司 | Movable double-leaf protection civil air defense door structure of threshold |
| CN110529014A (en) * | 2019-08-02 | 2019-12-03 | 潜山县九鼎精密机械有限公司 | It is a kind of to have ventilation function and the strong closed guard gate of leakproofness is installed |
| CN211038378U (en) * | 2019-08-30 | 2020-07-17 | 重庆华西人防工程设备股份有限公司 | People's air defense door with movable doorsill |
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| CN211975062U (en) * | 2020-04-02 | 2020-11-20 | 四川博瑞人防工程有限公司 | Protective airtight partition door for civil air defense engineering of underground railway |
| CN111472669A (en) * | 2020-04-15 | 2020-07-31 | 廖兴宝 | Protective equipment with large use space and automatic protection and early warning during danger |
| CN111535717A (en) * | 2020-05-25 | 2020-08-14 | 芜湖百益人防工程防护设备有限公司 | Self-buffering type anti-seismic civil air defense door |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116551284A (en) * | 2023-05-11 | 2023-08-08 | 兴化市兴东铸钢有限公司 | Welding device for splicing grate plates of grate cooler |
| CN116551284B (en) * | 2023-05-11 | 2023-12-26 | 兴化市兴东铸钢有限公司 | Welding device for splicing grate plates of grate cooler |
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