CN111395925A - Steel construction biparting protection unit cuts off door - Google Patents
Steel construction biparting protection unit cuts off door Download PDFInfo
- Publication number
- CN111395925A CN111395925A CN202010187928.0A CN202010187928A CN111395925A CN 111395925 A CN111395925 A CN 111395925A CN 202010187928 A CN202010187928 A CN 202010187928A CN 111395925 A CN111395925 A CN 111395925A
- Authority
- CN
- China
- Prior art keywords
- door
- door leaf
- driving
- rod
- leaf
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C7/00—Fastening devices specially adapted for two wings
- E05C7/04—Fastening devices specially adapted for two wings for wings which abut when closed
-
- 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
- E06B3/362—Double winged doors or windows
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems; Audible personal calling systems
- G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Wing Frames And Configurations (AREA)
Abstract
The invention relates to a steel structure double-leaf protection unit partition door which comprises a door frame and door leaves rotatably connected to the door frame, wherein two sides of each door leaf are respectively connected with two opposite sides of the door frame, a locking mechanism for locking the two opposite door leaves mutually is arranged in each door leaf, each locking mechanism comprises slots formed in two opposite side walls of each door leaf, a bolt for rotatably inserting into each slot is rotatably connected in each door leaf, and a driving assembly for driving the bolt to rotate is arranged on each door leaf. The invention has the advantages that: when the door leaf is locked by the staff, the locking is simple, and the partition door can be closed and opened with low effort.
Description
Technical Field
The invention relates to the technical field of civil air defense equipment, in particular to a steel structure double-leaf protection unit partition door.
Background
At present, partition doors on the market are various. The large civil air defense engineering generally consists of a plurality of protection units, and in order to ensure that the loss of the protection function of each protection unit does not influence the exertion of the protection functions of other protection units, protective airtight doors capable of bearing in two directions are required to be arranged at communication ports of the protection units.
The utility model discloses a chinese utility model patent that publication number is CN2525220 discloses a civil air defense engineering protection unit cuts off door, include the door leaf and the door frame connected by the hinge page or leaf and the shutting of connecting door leaf and door frame, the door leaf is along being equipped with convertible seal beam down, there is the twice on the seal beam for the door leaf, the adhesive tape on ground, the seal beam drives seal beam by at least two pairs of crank rocker elevating system and realizes that the door leaf is down along sealed with ground, crank rocker elevating system's cross axle articulates on the upper bracket and with wear the perpendicular meshing of axle, wear the axle and pass the door leaf, both ends are controlled by the handle, the hinge page or leaf adopts two hinge axles hinge page or leaf, can rotate and can the translation. The protection unit partition door bears the stress in two directions, has no threshold, has two vertical rotating leaves, and is reasonable in structure, convenient to use, simple to operate, flexible to open and close, economical, practical and convenient to maintain.
The above prior art solutions have the following drawbacks: the staff need carry out loaded down with trivial details step when locking the door leaf to and the great strength of cost, thereby make the protective unit cut off the door and use inconvenient.
Disclosure of Invention
Aiming at the defects in the prior art, one of the purposes of the invention is to provide a steel structure double-leaf protection unit partition door, which has the advantages that: when the door leaf is locked by the staff, the locking is simple, and the partition door can be closed and opened with low effort.
The above object of the present invention is achieved by the following technical solutions: the utility model provides a steel construction two protection unit cuts off door, includes the door frame and rotates the door leaf of connecting in the door frame, its characterized in that: the door leaf is provided with two sides which are respectively connected with two opposite sides of the door frame, a locking mechanism which locks the two opposite door leaves mutually is arranged in the door leaf, the locking mechanism comprises slots which are arranged on two opposite side walls of the door leaf, a bolt which is rotatably inserted into the slots is rotatably connected in the door leaf, and a driving assembly which drives the bolt to rotate is arranged on the door leaf.
By adopting the technical scheme, the two door leaves are mutually closed, and then the driving assembly drives the bolt to rotate until the bolt can be inserted into the slot, so that the two door leaves are fixedly connected; and all be provided with bolt and slot on two door leafs, not only can make the fixed of door leaf more stable, the staff only need pass through drive assembly alright switching door leaf moreover for the staff is comparatively simple when locking the door leaf, and the less strength of cost alright close and open the wall door.
The present invention in a preferred example may be further configured to: the driving assembly comprises a driving shaft arranged on the door leaf, the side wall of the driving shaft is fixedly connected with the end part of the bolt, a connecting rod is fixedly connected to the peripheral surface of the driving shaft, the end part of the connecting rod, which deviates from the driving shaft, is rotatably connected with a linkage rod which is vertically arranged, a driving rod is rotatably connected to the linkage rod, one end of the driving rod is rotatably connected with the door leaf, a connecting line of the driving rod and a hinge point of the door leaf and the driving shaft is arranged in parallel with the linkage rod, and a driving block which can push the driving rod to rotate around the hinge point of the driving.
Through adopting above-mentioned technical scheme, the staff is opening and closing this wall door, the tip that only needs to drive the actuating lever through the drive block rotates around its pin joint with the door leaf, because the pin joint of actuating lever and door leaf and the line and the gangbar parallel arrangement of drive shaft, so the actuating lever, gangbar and connecting rod form a parallelogram structure, then the rotation of actuating lever can drive rather than rotate the gangbar of being connected and carry out the linkage from top to bottom and left and right sides, the removal of gangbar returns to drive rather than rotates the connecting rod of being connected and carries out around drive shaft pivoted rotation, make the drive shaft drive bolt rotate, make in the bolt can rotate the slot on another door leaf lateral wall, accomplish the relative fixation of two door leaves.
The present invention in a preferred example may be further configured to: the vertical screw rod that wears to be equipped with on the drive block, the one end of screw rod is connected with its pivoted turbine reduction gear of drive, be provided with rotatory hand wheel on the turbine reduction gear.
Through adopting above-mentioned technical scheme, when closing and opening the door leaf, only need rotate rotatory hand wheel, turbo reducer can slow down the revolving force of rotatory hand wheel and export bigger moment of torsion for the screw rod rotates, and then drives the drive block and carries out straight line about the length direction of screw rod and slide, thereby drives the actuating lever and carries out the angular motion.
The present invention in a preferred example may be further configured to: the vertical rigid coupling of the last lateral wall of drive block has the projection, set up on the actuating lever and supply the projection to insert the mounting hole, the mounting hole is waist shape slot hole.
Through adopting above-mentioned technical scheme, when the drive block carried out straight line from top to bottom and slided, the setting up of mounting hole can make the actuating lever follow the drive block and reciprocate when, can be stable rotate around the rotation tie point of actuating lever and door leaf.
The present invention in a preferred example may be further configured to: the bolts and the slots are provided with a plurality of bolts along the height direction of the door leaf.
Through adopting above-mentioned technical scheme, the setting of a plurality of bolt and slot for but multipoint fixing between two door leafs makes the stable holding of door leaf at stable closed condition then.
The present invention in a preferred example may be further configured to: the bottom of slot is provided with pressure sensor, pressure sensor is connected with the bee calling organ.
Through adopting above-mentioned technical scheme, when the complete insert of bolt was gone into in the slot, the tip of bolt can contact the pressure sensor who takes the slot bottom, and the pressure sensor who receives bolt extrusion effort this moment can give bee calling organ with signal of telecommunication transmission, and bee calling organ sends the sound to make the staff need not to watch alright learn the inside of the complete insert slot of bolt, reinforcing practicality.
The present invention in a preferred example may be further configured to: and an indication arrow is arranged beside the rotary hand wheel and used for displaying the rotation direction of the rotary hand wheel.
Through adopting above-mentioned technical scheme, can make things convenient for the staff to rotate the rotating hand wheel, reduce the condition that the maloperation appears.
The present invention in a preferred example may be further configured to: the door leaf is provided with a handle.
Through adopting above-mentioned technical scheme, can make things convenient for the staff to open and close two door leafs.
In summary, the invention has the following beneficial technical effects:
1. the door leaf can be opened and closed by a worker only by driving the rotating hand wheel to rotate, so that the door leaf can be locked simply by the worker, and the partition door can be closed and opened with low effort;
2. a plurality of bolts and slots are arranged, so that the two door leaves are fixed stably;
3. set up pressure sensor and bee calling organ for the staff judges the fixed condition of door leaf more easily.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a schematic view showing a positional relationship between a through hole and a slot in a door leaf.
FIG. 3 is a partial structural cross-sectional view embodying a locking mechanism.
In the figure, 1, a door frame; 2. a door leaf; 21. a handle; 3. a locking mechanism; 31. a slot; 32. a pressure sensor; 33. a buzzer; 34. a bolt; 35. perforating; 36. a drive assembly; 361. a drive shaft; 362. a connecting rod; 363. a linkage rod; 364. a drive rod; 3641. mounting holes; 365. a drive block; 3651. a convex column; 366. a screw; 367. a turbo reducer; 368. rotating a hand wheel; 4. indicating an arrow.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the partition door with the steel structure and the double-leaf protection units disclosed by the invention comprises a door frame 1 and a door leaf 2 rotatably connected to the door frame 1, wherein the door leaf 2 is provided with two sides which are respectively rotatably connected with two opposite sides of the door frame 1, a handle 21 convenient for rotating the door leaf 2 is fixedly connected to the door leaf 2, and the door frame 1 is opened and closed by pulling the handle 21 to rotate the door leaf 2.
Referring to fig. 1 and 2, in order to stably maintain the door leaf 2 in a state of closing the door frame 1, a locking mechanism 3 for locking two opposite door leaves 2 with each other is disposed in the door leaf 2, the locking mechanism 3 includes slots 31 formed in opposite side walls of the two door leaves 2, in this embodiment, two slots 31 on each door leaf 2 are respectively disposed, the two slots 31 on the same door leaf 2 are arranged along a height direction of the door leaf 2, the slots 31 on different door leaves 2 are staggered with each other and located on different planes, a pressure sensor 32 is disposed at the bottom of each slot 31, the pressure sensor 32 is connected with a buzzer 33, and the buzzer 33 is disposed on a surface of the door leaf 2; two bolts 34 which are rotatably inserted into the slots 31 are rotatably connected in the door leaf 2, the two bolts 34 are rotatably connected with the door leaf 2, and a straight line formed by the two bolts 34 and the door leaf 2 in a hinged mode is perpendicular to a horizontal plane; the door leaf 2 is provided with a through hole 35 for the bolt 34 to penetrate out of the door leaf 2, the through hole 35 is opposite to the slot 31 of the other door leaf 2 one by one, and the door leaf 2 is provided with a driving component 36 for driving the bolt 34 to rotate.
The two door leaves 2 are mutually closed, then the through holes 35 on the two door leaves 2 and the slots 31 are mutually aligned, and then the driving assembly 36 drives the bolts 34 to rotate until the bolts 34 can be inserted into the slots 31, so that the two door leaves 2 are fixedly connected; when the plug pin 34 is completely inserted into the slot 31, the end part of the plug pin 34 contacts the pressure sensor 32 with the bottom of the slot 31, at the moment, the pressure sensor 32 which is extruded by the plug pin 34 transmits an electric signal to the buzzer 33, and the buzzer 33 makes a sound, so that a worker can know that the plug pin 34 is completely inserted into the slot 31 without watching, and the practicability is enhanced; and all be provided with bolt 34 and slot 31 on two door leafs 2, not only can make the fixed of door leaf 2 more stable, the staff only need pass through drive assembly 36 alright switching door leaf 2 moreover for the staff is comparatively simple when locking door leaf 2, and the cost is less strength alright close and open the wall door.
Referring to fig. 2 and 3, the driving assembly 36 includes a driving shaft 361 disposed on the door leaf 2, the driving shaft 361 is disposed perpendicular to the door leaf 2, the driving shaft 361 is rotatably connected to the door leaf 2 through a bearing (not shown), a circumferential side wall of the driving shaft 361 is fixedly connected to an end of the latch 34, and the latch 34 is disposed along a radial direction of the driving shaft 361; meanwhile, a connecting rod 362 is fixedly connected to the circumferential surface of the driving shaft 361 along the radial direction of the driving shaft 361, an angle between the connecting rod 362 and the plug pin 34 is an obtuse angle, the end of the connecting rod 362 away from the driving shaft 361 is rotatably connected with a linkage rod 363 which is vertically arranged, the other end of the linkage rod 363 is rotatably connected with another connecting rod 362, a driving rod 364 is rotatably connected to the linkage rod 363, one end of the driving rod 364 is rotatably connected with the door leaf 2, a connecting line between the driving rod 364 and the door leaf 2 and the driving shaft 361 is parallel to the linkage rod 363, and a driving block 365 which can push the driving rod 364 to rotate around the connecting rod and the connecting point of.
When the partition door is opened and closed by a worker, the end of the driving rod 364 is driven to rotate around the hinge point of the driving rod 364 and the door leaf 2 by the driving block 365, and the connecting line between the hinge point of the driving rod 364 and the door leaf 2 and the driving shaft 361 is parallel to the linkage rod 363, so that the driving rod 364, the linkage rod 363 and the connecting rod 362 form a parallelogram structure, the rotation of the driving rod 364 drives the linkage rod 363 which is rotatably connected with the driving rod 364 to perform up-down and left-right linkage, the movement of the linkage rod 363 drives the connecting rod 362 which is rotatably connected with the linkage rod 363 to perform rotation around the driving shaft 361, so that the driving shaft 361 drives the bolt 34 to rotate, the bolt 34 can rotate into the slot 31 on the side wall of the other door leaf 2, and the relative fixation of the two door leaves.
Referring to fig. 3, in the embodiment, the driving block 365 is a rectangular block, a screw rod 366 vertically penetrates through the driving block 365, one end of the screw rod 366 is connected with a turbine speed reducer 367 for driving the screw rod 366 to rotate, the other end of the screw rod 366 is rotatably connected with the side wall of the door leaf 2, a rotating hand wheel 368 is arranged on the turbine speed reducer 367, the rotating hand wheel 368 is located on the outer side of the door leaf 2, an indication arrow 4 is arranged on the upper side of the rotating hand wheel 368, and the indication arrow 4 is used for displaying the rotating direction of the rotating hand wheel 368, so that a worker can rotate the rotating hand wheel 368 conveniently; the driving block 365 is perpendicularly fixedly connected with a convex column 3651 towards the upper side wall of the rotating hand wheel 368, the driving rod 364 is provided with a mounting hole 3641 for inserting the convex column 3651, the mounting hole 3641 is a waist-shaped long hole, and when the driving block 365 linearly slides up and down, the mounting hole 3641 is arranged so that the driving rod 364 can move up and down along with the driving block 365, and the driving rod 364 can be stably rotated around the rotating connection point of the driving rod 364 and the door leaf 2. When the door leaf 2 is closed and opened, only the rotating hand wheel 368 needs to be rotated, the turbine reducer 367 can reduce the rotating force of the rotating hand wheel 368 and output a larger torque, so that the screw rod 366 rotates, the driving block 365 is driven to linearly slide up and down along the length direction of the screw rod 366, and the driving rod 364 is driven to perform corner motion.
The implementation principle of the embodiment is as follows: when the door leaf 2 needs to be locked and the door leaf 2 is stably kept in a closed state, only the rotating hand wheel 368 needs to be rotated, so that the screw rod 366 rotates, the driving block 365 is further driven to linearly slide up and down along the length direction of the screw rod 366, the driving rod 364 is driven to perform corner motion, the rotating pair of the driving shaft 361 is changed into the rotating pair of the bolt 34 under the conversion of the linkage rod 363, the bolt 34 is inserted into the slot 31, the door leaf 2 and the door frame 1 are further relatively fixed, and the door leaf 2 is stably kept in the closed state.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. The utility model provides a steel construction two protection unit cuts off door, includes door frame (1) and rotates door leaf (2) of connecting in door frame (1), its characterized in that: the door leaf (2) is provided with two sides which are respectively connected with two opposite sides of the door frame (1), a locking mechanism (3) which locks the two opposite door leaves (2) with each other is arranged in the door leaf (2), the locking mechanism (3) comprises slots (31) which are arranged on the opposite side walls of the two door leaves (2), a bolt (34) which is used for being rotatably inserted into the slots (31) is rotationally connected in the door leaf (2), and a driving assembly (36) which drives the bolt (34) to rotate is arranged on the door leaf (2).
2. The partition door with the steel structure and the double protection units as claimed in claim 1, wherein: the driving assembly (36) comprises a driving shaft (361) arranged on the door leaf (2), the side wall of the driving shaft (361) is fixedly connected with the end part of the bolt (34), a connecting rod (362) is fixedly connected to the circumferential surface of the driving shaft (361), the end part of the connecting rod (362) departing from the driving shaft (361) is rotatably connected with a linkage rod (363) which is vertically arranged, the linkage rod (363) is rotatably connected with a driving rod (364), one end of the driving rod (364) is rotatably connected with the door leaf (2), a connecting line between the driving rod (364) and a hinge point of the door leaf (2) and a connecting line between the driving shaft (361) and the linkage rod (363) are arranged in parallel, and a driving block (365) which can push the driving rod (364) to rotate around the hinge point of the driving rod and the door leaf.
3. The partition door with the steel structure and the double protection units as claimed in claim 2, wherein: a screw rod (366) vertically penetrates through the driving block (365), one end of the screw rod (366) is connected with a turbine speed reducer (367) for driving the screw rod to rotate, and a rotating hand wheel (368) is arranged on the turbine speed reducer (367).
4. The partition door with the steel structure and the double protection units as claimed in claim 3, wherein: the upper side wall of the driving block (365) is vertically and fixedly connected with a convex column (3651), the driving rod (364) is provided with a mounting hole (3641) for the convex column (3651) to be inserted into, and the mounting hole (3641) is a waist-shaped long hole.
5. The steel structure double-leaf protection unit partition door of claim 4, wherein: the bolts (34) and the slots (31) are arranged in a plurality along the height direction of the door leaf (2).
6. The partition door with the steel structure and the double protection units as claimed in claim 5, wherein: the bottom of slot (31) is provided with pressure sensor (32), pressure sensor (32) are connected with bee calling organ (33).
7. The partition door with the steel structure and the double protection units as claimed in claim 6, wherein: an indication arrow (4) is arranged beside the rotating hand wheel (368), and the indication arrow (4) is used for displaying the rotating direction of the rotating hand wheel (368).
8. The partition door with the steel structure and the double protection units as claimed in claim 1, wherein: the door leaf (2) is provided with a handle (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010187928.0A CN111395925A (en) | 2020-03-17 | 2020-03-17 | Steel construction biparting protection unit cuts off door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010187928.0A CN111395925A (en) | 2020-03-17 | 2020-03-17 | Steel construction biparting protection unit cuts off door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111395925A true CN111395925A (en) | 2020-07-10 |
Family
ID=71427297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010187928.0A Pending CN111395925A (en) | 2020-03-17 | 2020-03-17 | Steel construction biparting protection unit cuts off door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111395925A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113153105A (en) * | 2021-05-13 | 2021-07-23 | 四川博瑞人防工程有限公司 | Steel construction threshold formula biparting explosion vent that lives |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206016560U (en) * | 2016-08-08 | 2017-03-15 | 北京新立机械有限责任公司 | A kind of swing-in multiconductor locks pressure-bearing hatch door |
| CN107747442A (en) * | 2017-10-16 | 2018-03-02 | 嵊泗县东升水产冷冻厂 | A kind of door lock assembly for ship |
| CN207177543U (en) * | 2017-09-04 | 2018-04-03 | 江西洪都航空工业集团有限责任公司 | A kind of self-protective formula aircraft cockpit hook-type lock |
| CN109372345A (en) * | 2018-11-22 | 2019-02-22 | 泰山学院 | A kind of new type of safe lock control system |
| CN209621103U (en) * | 2019-01-30 | 2019-11-12 | 合肥市顺泰人防工程有限公司 | Protective unit partition door of civil air defence |
-
2020
- 2020-03-17 CN CN202010187928.0A patent/CN111395925A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206016560U (en) * | 2016-08-08 | 2017-03-15 | 北京新立机械有限责任公司 | A kind of swing-in multiconductor locks pressure-bearing hatch door |
| CN207177543U (en) * | 2017-09-04 | 2018-04-03 | 江西洪都航空工业集团有限责任公司 | A kind of self-protective formula aircraft cockpit hook-type lock |
| CN107747442A (en) * | 2017-10-16 | 2018-03-02 | 嵊泗县东升水产冷冻厂 | A kind of door lock assembly for ship |
| CN109372345A (en) * | 2018-11-22 | 2019-02-22 | 泰山学院 | A kind of new type of safe lock control system |
| CN209621103U (en) * | 2019-01-30 | 2019-11-12 | 合肥市顺泰人防工程有限公司 | Protective unit partition door of civil air defence |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113153105A (en) * | 2021-05-13 | 2021-07-23 | 四川博瑞人防工程有限公司 | Steel construction threshold formula biparting explosion vent that lives |
| CN113153105B (en) * | 2021-05-13 | 2022-08-09 | 四川博瑞人防工程有限公司 | Steel construction threshold formula biparting explosion vent that lives |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107939211B (en) | A kind of moisture-proof airtight door automatic opening-closing of sealed reliable | |
| CN111395925A (en) | Steel construction biparting protection unit cuts off door | |
| CN213654649U (en) | Rotatable civil air defense door | |
| CN211115469U (en) | Wind pressure resistant spliced aluminum alloy top-hung window for high-rise building | |
| US20240117662A1 (en) | Transmission system allowing window to be opened in three directions | |
| CN211549442U (en) | Concrete sealing door | |
| CN213116026U (en) | Rotary civil air defense door | |
| CN212541045U (en) | Locking structure of mining intrinsic safety type control box | |
| CN111691440B (en) | Displacement amplification device for slope early warning | |
| CN213016428U (en) | Colliery is air door blocking device in pit | |
| CN203626498U (en) | Casement window system capable of being synchronously opened and closed | |
| CN213234684U (en) | Safe with electric door opener | |
| CN212671496U (en) | Steel construction biparting protection unit cuts off door | |
| CN210127799U (en) | 360-degree rotary opening shutter and locking system thereof | |
| CN220889971U (en) | Structural strength visual civil air defense door | |
| CN219993433U (en) | Locking mechanism of civil air defense door | |
| CN220100988U (en) | Civil air defense cabin door closing structure | |
| CN219119095U (en) | Landing type double-leaf vertical rotation protective airtight door | |
| CN218375915U (en) | High timber of security | |
| CN215108260U (en) | Manual swing arm formula ware of windowing | |
| CN217440082U (en) | Pressure relief device for linkage of mining air door opening lever and air window | |
| CN221032252U (en) | Civil air defense engineering protective door for subway civil air defense | |
| CN218117623U (en) | Anti-theft aluminum alloy door and window | |
| CN220032153U (en) | Multidirectional switch sealing cabin door | |
| CN218815761U (en) | Connecting rod lock |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200710 |