CN112832638B - Anti-impact door leaf frame structure for civil air defense door - Google Patents
Anti-impact door leaf frame structure for civil air defense door Download PDFInfo
- Publication number
- CN112832638B CN112832638B CN202110033793.7A CN202110033793A CN112832638B CN 112832638 B CN112832638 B CN 112832638B CN 202110033793 A CN202110033793 A CN 202110033793A CN 112832638 B CN112832638 B CN 112832638B
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- Prior art keywords
- air defense
- civil air
- defense door
- door
- sliding
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- 230000007123 defense Effects 0.000 title claims abstract description 84
- 230000007246 mechanism Effects 0.000 claims abstract description 38
- 238000009434 installation Methods 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 claims 1
- 125000003003 spiro group Chemical group 0.000 claims 1
- 230000035939 shock Effects 0.000 abstract description 5
- 230000009471 action Effects 0.000 description 10
- 230000001360 synchronised effect Effects 0.000 description 9
- 238000001125 extrusion Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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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
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B65/00—Locks or fastenings for special use
- E05B65/06—Locks or fastenings for special use for swing doors or windows, i.e. opening inwards and outwards
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F5/00—Braking devices, e.g. checks; Stops; Buffers
- E05F5/06—Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops
- E05F5/08—Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops with springs
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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
- E06B1/04—Frames for doors, windows, or the like to be fixed in openings
- E06B1/52—Frames specially adapted for doors
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
- E05Y2900/13—Type of wing
- E05Y2900/132—Doors
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
Abstract
The invention relates to the technical field of civil air defense doors, in particular to an anti-collision door leaf frame structure for a civil air defense door, which comprises a wall body, a door leaf frame, a civil air defense door, elastic devices, a connecting rod device and a power mechanism, wherein the door leaf frame is embedded in the wall body; the door leaf frame embedding is in the wall body, and when the shock wave assaulted, the people's air defense door can receive the impact, because the door leaf frame has the protection of wall body, the door leaf frame can not receive serious impact, even consequently the people's air defense door receives violent impact, the link means and the power unit of setting in the door leaf frame can not receive the influence, can normally be the unblock of people's air defense door, avoided the people's air defense door receiving the impact after, unable unblock leads to the unable condition of opening people's air defense door.
Description
Technical Field
The invention relates to the technical field of civil air defense doors, in particular to an anti-collision door leaf frame structure for a civil air defense door.
Background
The civil air defense door is a door of an entrance and an exit of civil protection engineering, the classification of the civil air defense door is more distinct, and the civil air defense door comprises a common single-leaf protective airtight door, a double-leaf protective airtight door, an airtight door and other various civil air defense devices.
The top plate, the side wall and the floor of the civil air defense basement are thicker and firmer than those of a common basement, certain shock wave resistance and conventional bomb detonation wave resistance are realized besides the bearing capacity, the conventional protective airtight door is heavier and is provided with a self-locking structure, when the civil air defense door is subjected to shock waves, the civil air defense door slightly deforms, and sometimes the deformation of an internal self-locking mechanism due to the influence of the shock waves causes that the civil air defense door cannot be opened, so that the invention provides the anti-collision door leaf frame structure for the civil air defense door, which is used for solving the problems.
Disclosure of Invention
The present invention has been made to solve the above-mentioned problems occurring in the prior art, and an object of the present invention is to provide an impact-resistant door frame structure for a civil air defense door.
In order to achieve the purpose, the invention provides the following technical scheme: a door leaf frame structure for a civil air defense door and capable of resisting impact comprises a wall body, a door leaf frame, a civil air defense door, elastic devices, a connecting rod device and a power mechanism, wherein the door leaf frame is embedded in the wall body;
the door leaf frame comprises a frame, a civil air defense door installation area is arranged on the frame, two groups of rectangular grooves are symmetrically arranged on one side of the civil air defense door installation area, and two groups of inclined grooves are symmetrically arranged on the other side of the civil air defense door installation area.
Preferably, the civil air defense door includes the civil air defense door main part, and civil air defense door main part one side symmetry sets up two sets of supports, and the support bilateral symmetry sets up two sets of guide pillars, sets up the bearing on the guide pillar, and bearing embedding rectangular channel lateral wall, civil air defense door main part opposite side symmetry set up two sets of mounting grooves.
Preferably, the suppressing device includes chuck mechanism, sets up chuck mechanism in the mounting groove, and chuck mechanism bilateral symmetry sets up two sets of sliding sleeves, embedding upright bearing on the sliding sleeve, upright bearing sliding connection slide bar, and the shutoff board is connected to slide bar one end, and the slide bar other end passes the spring and is connected bottom the mounting groove.
Preferably, the connecting rod device comprises a screw rod, two sets of bearings are arranged at two ends of the screw rod, the bearings are embedded into the inner wall of the door leaf frame, the screw rod is in screwed connection with a first sliding sleeve, two sets of connecting rod mechanisms are symmetrically connected with two sides of the first sliding sleeve, and one end of the screw rod is connected with a gear.
Preferably, power unit includes the hold-in range, and two sets of gears of hold-in range both ends meshing, hold-in range middle part meshing gear one, gear one connects the synchronizing shaft, and the synchronizing shaft connects conical gear, and conical gear sets up two sets ofly, and two sets of conical gear meshing, a set of conical gear connect the transmission shaft, set up the bearing on the transmission shaft, and bearing embedding door leaf frame inner wall, transmission shaft one end are passed the bearing and are connected with the runner.
Preferably, the chuck mechanism comprises a chuck, the chuck is sleeved with a bearing, and the chuck is provided with a clamping groove.
Preferably, the link mechanism comprises a straight rod, two ends of the straight rod are hinged to the rotating seats through two sets of rotating shafts, one set of the rotating seats is connected with the first sliding sleeve, the other set of the rotating seats is connected with the sliding block, the sliding block is connected with the guide rail in a sliding mode, one end of the sliding block is connected with the clamping block, and the clamping block is connected with the clamping groove in a matched mode.
Compared with the prior art, the invention has the beneficial effects that:
1. the door leaf frame is embedded in the wall body, when shock waves attack, the civil air defense door can be impacted, and the door leaf frame is protected by the wall body and cannot be seriously impacted, so that even if the civil air defense door is violently impacted, the connecting rod device and the power mechanism arranged in the door leaf frame cannot be influenced, the civil air defense door can be normally unlocked, and the situation that the civil air defense door cannot be opened due to incapability of unlocking after the civil air defense door is impacted is avoided;
2. when the civil air defense door is closed under normal conditions, the civil air defense door main body is pushed, the civil air defense door main body rotates under the matching action of the guide pillar and the bearing, the chuck enters the chute, the bearing rotates along the chute, the chuck is extruded by the chute, the extrusion force is transmitted to the sliding sleeve through the chuck, the sliding sleeve linearly translates under the matching action of the vertical bearing and the sliding rod, and the spring is compressed until the chuck slides into a clamping hole formed in the chute under the action of the rebound force of the spring, so that the pre-fixing of the civil air defense door is realized, the setting of the chuck mechanism enables a worker to normally open and close the civil air defense door under the condition that the civil air defense door is not locked, and the working efficiency of the worker is improved;
3. when needs are dead with people's air defense door lock, rotate the runner, the runner makes bevel gear rotate through the transmission shaft, bevel gear's rotation makes the synchronizing shaft rotate, the rotation of synchronizing shaft makes gear one rotate, gear one makes two sets of gear rotations through the hold-in range, the gear drives the lead screw and rotates, the rotation of lead screw makes sliding sleeve one remove, the removal of sliding sleeve one promotes the straight-bar, the straight-bar moves the slider downstream under rotation axis and roating seat mating reaction, the slider is along the translation of guide rail straight line, until the fixture block slip draw-in groove that slider one end set up, make chuck mechanism fixed, thereby realize dying to the lock of whole people's air defense door through chuck mechanism.
Drawings
FIG. 1 is a schematic front view of the structure of the present invention;
FIG. 2 is an enlarged view of FIG. 1A;
FIG. 3 is an enlarged view of FIG. 1B;
FIG. 4 is a front view of the structural door leaf frame of the present invention;
FIG. 5 is a side view of the chuck mechanism and sliding sleeve combination of the present invention.
In the figure: 1 wall body, 2 door leaf frames, 3 civil air defense doors, 4 elastic pressing devices, 5 connecting rod devices, 6 power mechanisms, 201 rectangular grooves, 202 frames, 203 civil air defense door installation areas, 204 inclined grooves, 301 guide pillars, 302 supports, 303 civil air defense door bodies, 304 installation grooves, 401 plugging plates, 402 springs, 403 sliding rods, 404 sliding sleeves, 405 chuck mechanisms, 501 connecting rod mechanisms, 502 sliding sleeves I, 503 gears, 504 screw rods, 601 synchronous belts, 602 gear I, 603 synchronous shafts, 604 bevel gears, 605 transmission shafts, 606 turntables, 4051 bearings, 4052 chucks, 4053 clamping grooves, 5011 guide rails, 5012 sliding blocks, 5013 rotating seats, 5014 rotating shafts and 5015 straight rods.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1 to 5, the present invention provides a technical solution: a door leaf frame structure for impact resistance of a civil air defense door comprises a wall body 1, a door leaf frame 2, a civil air defense door 3, elastic devices 4, a connecting rod device 5 and a power mechanism 6, wherein the door leaf frame 2 is embedded in the wall body 1, the civil air defense door 3 is arranged in the door leaf frame 2, two groups of elastic devices 4 are symmetrically arranged on one side of the civil air defense door 3, the elastic devices 4 are matched and connected with the connecting rod device 5, the connecting rod device 5 is connected with the power mechanism 6, the door leaf frame 2 comprises a frame 202, a civil air defense door installation area 203 is arranged on the frame 202, two groups of rectangular grooves 201 are symmetrically arranged on one side of the civil air defense door installation area 203, two groups of inclined grooves 204 are symmetrically arranged on the other side of the civil air defense door installation area 203, the door frame 2 is embedded in the wall body 1, when impact waves attack occurs, the civil air defense door 3 can be impacted, the door frame 2 can not receive serious impact due to the protection of the wall body 1, and therefore, even if the civil air defense door 3 is violently impacted, the connecting rod device 5 and the power mechanism 6 arranged in the door frame 2 can not be affected, the civil air defense door 3 can be normally unlocked, and the situation that the civil air defense door can not be unlocked can not be opened;
further, the civil air defense door 3 comprises a civil air defense door main body 303, two groups of supporting seats 302 are symmetrically arranged on one side of the civil air defense door main body 303, two groups of guide posts 301 are symmetrically arranged on two sides of the supporting seats 302, bearings are arranged on the guide posts 301 and are embedded into the side wall of the rectangular groove 201, two groups of mounting grooves 304 are symmetrically arranged on the other side of the civil air defense door main body 303, the elastic device 4 comprises a chuck mechanism 405, a chuck mechanism 405 is arranged in the mounting grooves 304, two groups of sliding sleeves 404 are symmetrically arranged on two sides of the chuck mechanism 405, vertical bearings are embedded into the sliding sleeves 404 and are slidably connected with the sliding rods 403, one ends of the sliding rods 403 are connected with a plugging plate 401, the other ends of the sliding rods 403 are connected with the bottoms of the mounting grooves 304 through springs 402, the chuck mechanism 405 comprises a chuck 4052, a bearing 4051 is sleeved on the chuck 4052, a clamping groove 4053 is arranged on the chuck 4052, when the civil air defense door 3 is closed under normal conditions, the civil air defense door main body 303 is pushed, the civil air defense door main body 303 rotates under the matching action of the guide post 301 and the bearing, the chuck 4052 enters the chute 204, the bearing 4051 rotates along the chute 204, the chuck 4052 is extruded by the chute 204, the extrusion force is transmitted to the sliding sleeve 404 through the chuck 4052, the sliding sleeve 404 linearly translates under the matching action of the vertical bearing and the sliding rod 403, the spring 402 is compressed until the chuck 4052 slides into a clamping hole formed in the chute 204 under the action of the rebounding force of the spring 402, so that the civil air defense door 3 is pre-fixed, the setting of the chuck mechanism 405 enables a worker to normally open and close the civil air defense door 3 under the condition that the worker does not need to lock the civil air defense door 3, and the working efficiency of the worker is improved;
further, the link device 5 comprises a screw rod 504, two ends of the screw rod 504 are provided with two sets of bearings, the bearings are embedded into the inner wall of the door frame 2, the screw rod 504 is in threaded connection with a sliding sleeve 502, two sides of the sliding sleeve 502 are symmetrically connected with two sets of link mechanisms 501, one end of the screw rod 504 is connected with a gear 503, the link mechanisms 501 comprise straight rods 5015, two ends of each straight rod 5015 are hinged with rotating bases 5013 by arranging two sets of rotating shafts 5014, one set of rotating bases 5013 is connected with the sliding sleeve 502, the other set of rotating bases 5013 is connected with a sliding block 5012, the sliding block 5012 is slidably connected with a guide rail 5011, one end of the sliding block 5012 is connected with a clamping block, the clamping block is matched and connected with a clamping groove 4053, the power mechanism 6 comprises a synchronous belt 601, two ends of the synchronous belt 601 are engaged with the two sets of gears 503, the middle part of the synchronous belt 601 is engaged with a gear 602, the gear 602 is connected with a synchronous shaft 603, the synchronous shaft 603 is connected with a conical gear 604, two sets of conical gears 604, the two sets of conical gears 604 are engaged with one set of the conical gears 604, one set of the bearings are embedded into the inner wall of the door frame 2, one set of the bearing is connected with a rotating wheel 606 through the bearing, when the civil air defense door 3 needs to be locked, the rotating wheel 606 is rotated, the rotating wheel 606 enables the bevel gear 604 to rotate through the transmission shaft 605, the rotation of the bevel gear 604 enables the synchronizing shaft 603 to rotate, the rotation of the synchronizing shaft 603 enables the first gear 602 to rotate, the first gear 602 enables the two groups of gears 503 to rotate through the synchronous belt 601, the gears 503 drive the screw rod 504 to rotate, the rotation of the screw rod 504 enables the first sliding sleeve 502 to move, the moving of the first sliding sleeve 502 pushes the straight rod 5015, the straight rod 5015 pulls the sliding block 5012 to move downwards under the matching effect of the rotating shaft 5014 and the rotating base 5013, the sliding block 5012 linearly translates along the guide rail 5011 until a clamping block arranged at one end of the sliding block 5012 slides into the clamping groove 4053, the chuck mechanism 405 is fixed, and the whole civil air defense door 3 is locked through the chuck mechanism 405.
The working principle is as follows: in the using process, the civil air defense door main body 303 is pushed, the civil air defense door main body 303 rotates under the matching action of the guide post 301 and the bearing, the chuck 4052 enters the chute 204, the bearing 4051 rotates along the chute 204, the chuck 4052 is extruded by the chute 204, the extrusion force is transmitted to the sliding sleeve 404 through the chuck 4052, the sliding sleeve 404 linearly translates under the matching action of the vertical bearing and the sliding rod 403, the spring 402 is compressed until the chuck 4052 slides into a clamping hole arranged in the chute 204 under the action of the rebounding force of the spring 402, when the civil air defense door 3 needs to be locked, the rotating wheel 606 is rotated, the rotating wheel 606 rotates the bevel gear 604 through the transmission shaft 605, the rotation of the bevel gear 604 rotates the synchronizing shaft 603, the rotation of the synchronizing shaft 603 rotates the first gear 602, the first gear 602 rotates the two sets of gears 503 through the synchronous belt 601, the gear 503 drives the screw rod 504 to rotate, the rotation of the sliding sleeve 502 moves, the moving of the sliding sleeve 502 pushes the straight rod 5015, the sliding rod 5012 pulls the sliding block 2 to move downwards under the matching action of the rotating shaft 5014 and the sliding rod mechanism is fixed in the clamping groove 405, and the straight rod 405 is fixed in the clamping block 403.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (1)
1. The utility model provides a door leaf frame construction of anti striking for civil air defense door, includes wall body (1), door leaf frame (2), civil air defense door (3), suppress device (4), link means (5), power unit (6), its characterized in that: a door leaf frame (2) is embedded into the wall body (1), a civil air defense door (3) is arranged in the door leaf frame (2), two groups of elastic pressing devices (4) are symmetrically arranged on one side of the civil air defense door (3), the elastic pressing devices (4) are matched and connected with a connecting rod device (5), and the connecting rod device (5) is connected with a power mechanism (6);
the door leaf frame (2) comprises a frame (202), a civil air defense door installation area (203) is arranged on the frame (202), two groups of rectangular grooves (201) are symmetrically arranged on one side of the civil air defense door installation area (203), two groups of inclined grooves (204) are symmetrically arranged on the other side of the civil air defense door installation area (203), the civil air defense door (3) comprises a civil air defense door main body (303), two groups of supports (302) are symmetrically arranged on one side of the civil air defense door main body (303), two groups of guide pillars (301) are symmetrically arranged on two sides of the supports (302), bearings are arranged on the guide pillars (301), the bearings are embedded into the side wall of the rectangular grooves (201), two groups of installation grooves (304) are symmetrically arranged on the other side of the civil air defense door main body (303), the elastic pressing device (4) comprises a chuck mechanism (405), a chuck mechanism (405) is arranged in the installation grooves (304), two groups of sliding sleeves (404) are symmetrically arranged on two sides of the chuck mechanism (405), vertical bearings are embedded into the sliding sleeves (404), the sliding shaft bearings are connected with sliding rods (403) in a sliding manner, one end of the blocking plate (403) is connected with the sliding block plate (403), the other end of the sliding rod (402) is connected with the sliding rod (401), the sliding rod (504), the sliding rod (401) and the sliding rod (504) is connected with the sliding rod (401), the inner wall of the sliding rod (504), the sliding rod (401), the sliding rod (504), the sliding rod (401) and the screw rod (401) is connected with the inner wall (504), the inner wall (401), the lead screw (504) spiro union sliding sleeve (502), two sets of link mechanism (501) of sliding sleeve (502) bilateral symmetry connection, gear (503) are connected to lead screw (504) one end, power unit (6) include hold-in range (601), hold-in range (601) both ends meshing two sets of gear (503), hold-in range (601) middle part meshing gear (602), synchronizing shaft (603) is connected to gear (602), synchronizing shaft (603) is connected conical gear (604), conical gear (604) set up two sets, two sets of conical gear (604) meshing, a set of conical gear (604) connect transmission shaft (605), set up the bearing on transmission shaft (605), bearing embedding door leaf frame (2) inner wall, transmission shaft (605) one end is passed the bearing and is connected with runner (606), chuck mechanism (405) includes chuck (4052), chuck (4052) go up the cover and is established bearing (4051), set up draw-in groove (4052) on the chuck, link mechanism (501) includes 5015), straight-bar (5) both ends set up through two sets up straight-bar (404) and connect a set of rotating shaft (5013) and rotating base (5013), chuck (5013) articulated rotating seat (5013), slider (5012) sliding connection guide rail (5011), slider (5012) one end is connected the fixture block, fixture block cooperation connection draw-in groove (4053).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110033793.7A CN112832638B (en) | 2021-01-12 | 2021-01-12 | Anti-impact door leaf frame structure for civil air defense door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110033793.7A CN112832638B (en) | 2021-01-12 | 2021-01-12 | Anti-impact door leaf frame structure for civil air defense door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112832638A CN112832638A (en) | 2021-05-25 |
| CN112832638B true CN112832638B (en) | 2022-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110033793.7A Active CN112832638B (en) | 2021-01-12 | 2021-01-12 | Anti-impact door leaf frame structure for civil air defense door |
Country Status (1)
| Country | Link |
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| CN (1) | CN112832638B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201705053U (en) * | 2010-06-10 | 2011-01-12 | 陈浩 | Universal door control module |
| CN102425333A (en) * | 2011-12-29 | 2012-04-25 | 上海洋洋大多利特殊钉有限公司 | Rotary handle-free unlatched door lock |
| CN204754670U (en) * | 2015-05-28 | 2015-11-11 | 国家电网公司 | Hyperbaric chamber emergency exits |
| CN108049782A (en) * | 2017-12-05 | 2018-05-18 | 重庆北金人防工程设备有限公司 | A kind of self closing explosion proof door |
| CN109854096B (en) * | 2019-04-17 | 2023-12-26 | 重庆工业职业技术学院 | Spring bolt and lock catch structure capable of being unlocked by elastic sheet |
| CN210530655U (en) * | 2019-07-16 | 2020-05-15 | 福建金桥门业有限公司 | Anti-reverse-locking anti-theft door |
-
2021
- 2021-01-12 CN CN202110033793.7A patent/CN112832638B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112832638A (en) | 2021-05-25 |
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