CN210564000U - Electric folding steel protective airtight door - Google Patents

Electric folding steel protective airtight door Download PDF

Info

Publication number
CN210564000U
CN210564000U CN201920949103.0U CN201920949103U CN210564000U CN 210564000 U CN210564000 U CN 210564000U CN 201920949103 U CN201920949103 U CN 201920949103U CN 210564000 U CN210564000 U CN 210564000U
Authority
CN
China
Prior art keywords
plate
folding
frame body
sliding
slider
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.)
Expired - Fee Related
Application number
CN201920949103.0U
Other languages
Chinese (zh)
Inventor
周岚
周祖林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chengdu Civil Air Defense Architectural Design And Research Institute Co ltd
Original Assignee
Chengdu Civil Air Defense Architectural Design And Research Institute
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chengdu Civil Air Defense Architectural Design And Research Institute filed Critical Chengdu Civil Air Defense Architectural Design And Research Institute
Priority to CN201920949103.0U priority Critical patent/CN210564000U/en
Application granted granted Critical
Publication of CN210564000U publication Critical patent/CN210564000U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The utility model relates to an electronic folding steel protective airtight door belongs to people's air defense safety technical field. The wall protection device comprises a frame body embedded in a wall body, wherein a protection plate is arranged in the frame body, and the protection plate comprises a plurality of first folding plates and a plurality of second folding plates which are arranged on the frame body in a sliding mode; the top end of the frame body is provided with a first sliding groove along the length direction of the frame body, a plurality of first folding plates are respectively provided with a first sliding block in sliding connection with the first sliding groove, a plurality of second folding plates are respectively provided with a second sliding block in sliding connection with the first sliding groove, and the frame body is provided with a driving piece for driving the adjacent first sliding block and the second sliding block to approach or separate from each other; the adjacent first folding plates are mutually rotatably connected, and the rotating connection position of the first folding plate is arranged at one end, away from the first folding plate, of the first folding plate, and provided with a first sliding block. The protective airtight door can save occupied space.

Description

Electric folding steel protective airtight door
Technical Field
The utility model relates to a civil air defense technical field especially relates to an electronic folding steel protective airtight door.
Background
The civil air defense engineering belongs to the war preparedness engineering, and is a function of protecting the lives and properties of urban people and industrial economic resources when the nation suffers from air assault. The civil air defense project is developed and utilized in peaceful period while the combat readiness benefit is ensured, and higher economic benefit and social benefit are obtained as far as possible, so that the rolling development of the construction of the civil air defense project and the economic construction of cities are promoted.
Traditional people's air defense door sets up in positions such as underpass or underground parking garage, rotates by the people generally and opens, and when rotating and opening, because people's air defense door opens or closes, all will occupy the place in underpass or underground parking garage, then wasted the space in underground parking garage.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an electronic folding steel protective airtight door has the advantage of practicing thrift area.
The above object of the present invention can be achieved by the following technical solutions:
an electric folding steel protective airtight door comprises a frame body pre-embedded in a wall body, wherein a protective plate used for plugging an opening of the frame body is arranged in the frame body, and the protective plate comprises a plurality of first folding plates and a plurality of second folding plates which are respectively arranged on the frame body in a sliding manner; the top end of the frame body is provided with a first sliding groove along the length direction of the frame body, a plurality of first folding plates are respectively provided with a first sliding block in sliding connection with the first sliding groove, a plurality of second folding plates are respectively provided with a second sliding block in sliding connection with the first sliding groove, and the frame body is provided with a driving piece for driving the adjacent first sliding block and the second sliding block to approach or separate from each other; adjacent first folded sheet rotation connects each other, and its rotation junction sets up in first folded sheet and keeps away from its one end that is equipped with first slider, and is adjacent rotation connects between the second folded sheet, and its rotation junction sets up in the second folded sheet and keeps away from its one end that is equipped with the second slider.
Implement above-mentioned technical scheme, the operation driving piece, the adjacent first slider of driving piece drive is close to each other with the second slider, then a plurality of first folded sheets of first slider pulling extend, a plurality of second folded sheets of second slider pulling extend, the first slider of driving piece drive is close to each other with the second slider, when the staff observes first slider and second slider and drives adjacent first folded sheet and second folded sheet butt, the stop operation driving piece, then adjacent first folded sheet and the mutual butt of second folded sheet form the guard plate. Through the folding setting of guard plate, when can be so that the guard plate opens and close, need not occupation space, practiced thrift area.
Further, the driving piece includes first bidirectional screw and motor, be provided with the holding tank that communicates with first spout in the framework, first bidirectional screw length direction's one end rotates with the holding tank to be connected, the other end of first bidirectional screw wear out the holding tank outer with the output coaxial coupling of motor, adjacent first slider and second slider stretch into holding tank internal thread connection respectively in the both ends of first bidirectional screw, be provided with the opening that supplies first slider or second slider to remove on the holding tank.
Implement above-mentioned technical scheme, start the motor, the first bidirectional screw of motor drive rotates, first bidirectional screw rotates and drives first slider and second slider and rotate, because first slider and second slider are spacing in first spout, first slider and second slider move towards the direction that is close to each other, then a plurality of first folded sheets of first slider pulling extend, a plurality of second folded sheets of second slider pulling extend, driving piece drive first slider and second slider are close to each other, when the staff observes first slider and second slider and moves to adjacent first folded sheet and second folded sheet butt, close the motor, then adjacent first folded sheet and second folded sheet butt each other and form the guard plate.
Further, the one side that first folded sheet and second folded sheet moved towards each other all is provided with the rubber slab, the rubber slab sets up along first folded sheet or second folded sheet length direction.
Implement above-mentioned technical scheme, through the setting of rubber slab, can be so that when adjacent first folded sheet and the mutual butt of second folded sheet, the leakproofness is better, prevents that toxic gas from getting into indoorly in the clearance between adjacent first folded sheet and second folded sheet.
Furthermore, the two ends of the rubber plate in the length direction are respectively provided with an anti-abrasion block, and the anti-abrasion blocks are connected with the first folding plate or the second folding plate.
Implement above-mentioned technical scheme, through the setting of abrasionproof piece, can be so that the rubber slab when moving on subaerial or first spout, reduce the wearing and tearing of rubber slab.
Further, set up the symmetry between the abrasionproof piece and be provided with fixed plate and fly leaf, fixed plate and fly leaf all are the shape of falling L, the one end and the guard plate of fixed plate are connected perpendicularly, the one end that the guard plate was kept away from to the fixed plate is parallel with the guard plate, the fly leaf rotates and sets up on the guard plate, and is adjacent be provided with the mounting that is used for being fixed in the fly leaf with the fixed plate relative position between the fly leaf, abrasionproof piece, fixed plate and fly leaf can be with the rubber slab butt on the guard plate.
Implement above-mentioned technical scheme, during the installation rubber slab, place the side of rubber slab in the position with the guard plate butt for one side and the fixed plate butt of rubber slab, rubber slab length direction's both ends and abrasionproof piece butt rotate the fly leaf again, the operation mounting makes two fly leaves fixed, then the fly leaf is fixed in the opposite side of rubber slab, then the rubber slab is fixed in on the guard plate, through the aforesaid operation, can be fixed in the guard plate with the rubber slab on.
Further, the mounting includes mounting panel and two fixture blocks, be provided with the second spout along mounting panel length direction on the mounting panel, it is provided with the two-way lead screw to rotate along second spout length direction in the second spout, two the fixture block respectively with the both ends threaded connection of the two-way lead screw of second, adjacent be provided with the draw-in groove with two fixture block joints on the fly leaf respectively.
Implement above-mentioned technical scheme, during the installation rubber slab, place the rubber slab in the position with the guard plate butt, make one side and the fixed plate butt of rubber slab, rubber slab length direction's both ends and abrasionproof piece butt, rotate the fly leaf again, insert two fixture blocks in the draw-in groove, the surface of mounting panel and fly leaf is attached this moment, rotate the two-way lead screw of second again, the two-way lead screw of second rotates and drives two fixture blocks and rotate, because the fixture block is spacing in the second spout, then the fixture block moves towards the direction that is close to each other along the second slider, when two fixture block moves each other to the inside wall of pressing from both sides tight draw-in groove, two fly leaves then reciprocal anchorage, make the fly leaf be fixed in the opposite side of rubber.
Furthermore, one end of the second bidirectional screw rod in the length direction penetrates through the second sliding groove and is connected with a handle.
Implement above-mentioned technical scheme, through the setting of handle, the staff of being convenient for rotates the two-way lead screw of second.
Furthermore, a first serrated surface is arranged on the clamping block, and a second serrated surface meshed with the first serrated surface is arranged on the clamping groove.
According to the technical scheme, when the clamping block is clamped on the inner side wall of the clamping groove, the first sawtooth surface is meshed with the second sawtooth surface, and the clamping block can be prevented from falling off from the clamping groove through the arrangement of the first sawtooth surface and the second sawtooth surface.
To sum up, the utility model discloses following beneficial effect has:
the method comprises the following steps that firstly, a motor is started to drive a first folding plate and a second folding plate to move towards the directions close to each other, and when the first folding plate and the second folding plate move to abut against each other, a protection plate is formed to seal an opening of a frame body and block shock waves generated after air attack occurs;
two, place the rubber slab on the guard plate, the rethread rotates the bidirectional screw of second for two fixture blocks are close to each other, and then press from both sides the setting of pressing from both sides tight two fly leafs, can be under the prerequisite that does not damage the rubber slab, be fixed in the guard plate with the rubber slab on.
Drawings
Fig. 1 is a schematic structural view of the whole of the present invention;
fig. 2 is a sectional front view of the frame body of the present invention;
fig. 3 is a cross-sectional elevation view of a first fold-up panel of the present invention;
fig. 4 is an exploded view of a clamping block and a clamping groove on a single second folding plate according to the present invention;
fig. 5 is an exploded top view of the adjacent first and second folding panels of the present invention.
Reference numerals: 1. a frame body; 11. a first chute; 12. accommodating grooves; 2. a protection plate; 21. a first folding plate; 211. a first slider; 22. a second folding plate; 221. a second slider; 3. a gas baffle; 3. a drive member; 31. a first bidirectional screw; 32. a motor; 4. an anti-abrasion block; 41. a fixing plate; 42. a movable plate; 421. a card slot; 5. mounting a plate; 51. a second chute; 511. a second bidirectional screw rod; 5111. a handle; 5112. a clamping block; 6. a rubber plate.
Detailed Description
The technical solution of the embodiment of the present invention will be described below with reference to the accompanying drawings.
As shown in fig. 1, an electric folding steel protective airtight door comprises a frame body 1 embedded in a wall body, a protection plate 2 used for plugging an opening of the frame body 1 is arranged in the frame body 1, the protection plate 2 is a steel protection plate, and the protection plate 2 comprises a plurality of first folding plates 21 and a plurality of second folding plates 22 which are arranged on the frame body 1 in a sliding mode respectively.
As shown in fig. 2 and 3, a first sliding groove 11 is formed at the top end of the frame 1 along the length direction thereof, first sliding blocks 211 slidably connected to the first sliding groove 11 are respectively formed at the top ends of the first folding plates 21, and second sliding blocks 221 slidably connected to the first sliding groove 11 are respectively formed at the top ends of the second folding plates 22. One first sliding block 211 close to the second sliding block 221 in the plurality of first sliding blocks 211 is fixedly connected with the first folding plate 21, and the rest first sliding blocks 211 are rotatably connected with the first folding plate 21; one of the second sliding blocks 221 close to the first sliding block 211 is fixedly connected with the second folding plate 22, and the rest of the second sliding blocks 221 are rotatably connected with the second folding plate 22.
The frame body 1 is provided with a driving part 3 for driving the adjacent first sliding block 211 and the second sliding block 221 to approach or separate from each other, the driving part 3 comprises a first bidirectional screw rod 31 and a motor 32, and the first bidirectional screw rod 31 is formed by connecting two integrally formed screw rods with opposite threads. The top of framework 1 is provided with the holding tank 12 with first spout 11 intercommunication along framework 1 length direction, and holding tank 12 is located the top of first spout 11, and adjacent first slider 211 stretches into respectively in holding tank 12 with second slider 221. One end of the first bidirectional screw 31 in the length direction is rotatably connected with the accommodating groove 12, the other end of the first bidirectional screw 31 penetrates through the accommodating groove 12 to be coaxially connected with the output end of the motor 32, and one ends of the first slider 211 and the second slider 221 extending into the accommodating groove 12 are respectively in threaded connection with two ends of the first bidirectional screw 31.
Adjacent first folding plate 21 is articulated each other, and articulated department sets up in first folding plate 21 and keeps away from its one end that is equipped with first slider 211, and mutual rotation connects between adjacent second folding plate 22, and its rotation junction sets up in second folding plate 22 and keeps away from its one end that is equipped with second slider 221.
As shown in fig. 4 and 5, the wear-proof blocks 4 are respectively vertically disposed at two ends of the first folding plate 21 and the second folding plate 22 in the length direction, and the wear-proof blocks 4 are disposed on the surfaces of the first folding plate 21 and the second folding plate 22 facing each other. Set up the symmetry between anti-wear block 4 and be provided with fixed plate 41 and fly leaf 42, fixed plate 41 and fly leaf 42 all are the shape of falling L, and the one end and the guard plate 2 of fixed plate 41 are connected perpendicularly, and the one end that guard plate 2 was kept away from to fixed plate 41 is parallel with guard plate 2, and fly leaf 42 rotates and sets up on guard plate 2. A fixing member for fixing the movable plate 42 at a position opposite to the fixed plate 41 is disposed between the protection plate 2 and the movable plate 42, the fixing member includes a mounting plate 5 and two blocks 5112, a second sliding groove 51 is disposed on the mounting plate 5 along a length direction of the mounting plate 5, and a second bidirectional screw 511 is rotatably disposed in the second sliding groove 51 along the length direction of the second sliding groove 51. One end of the second bidirectional screw rod 511 in the length direction is rotatably connected with the second sliding groove 51, the other end of the second bidirectional screw rod 511 in the length direction penetrates through the second sliding groove 51, a handle 5111 is arranged outside the second sliding groove 51, and the second bidirectional screw rod 511 is formed by connecting two integrally formed screw rods with opposite threads. One end of each of the two clamping blocks 5112 in the length direction extends into the second sliding groove 51, one end of each of the two clamping blocks 5112 extending into the second sliding groove 51 is in threaded connection with two ends of the second bidirectional screw rod 511, and the adjacent movable plates 42 are provided with clamping grooves 421 clamped with the two clamping blocks 5112. The fixture block 5112 is provided with a first serrated surface, and the clamping groove 421 is provided with a second serrated surface engaged with the first serrated surface.
The anti-abrasion block 4 and the fixed plate 41 are integrally formed, the rubber plate 6 is arranged among the anti-abrasion block 4, the fixed plate 41 and the movable plate 42, and the rubber plate 6 plays a role in sealing. The wear-proof blocks 4 are abutted against two ends of the rubber plate 6 in the length direction, the fixed plate 41 is fixed on one side of the rubber plate 6, and the movable plate 42 is movably connected on the other side of the rubber plate 6.
The working principle is as follows: the motor 32 is started, the motor 32 drives the first bidirectional screw rod 31 to rotate, the first bidirectional screw rod 31 rotates to drive the first sliding block 211 and the second sliding block 221 to rotate, because the first sliding block 211 and the second sliding block 221 are limited in the first sliding groove 12, the first sliding block 211 and the second sliding block 221 move towards the directions close to each other, the first sliding block 211 pulls the plurality of first folding plates 21 to extend, the second sliding block 221 pulls the plurality of second folding plates 22 to extend, the driving piece 3 drives the first sliding block 211 and the second sliding block 221 to close to each other, when a worker observes that the first sliding block 211 and the second sliding block 221 drive the adjacent first folding plates 21 and the adjacent second folding plates 22 to abut against each other, the motor 32 is turned off, the adjacent first folding plates 21 and the adjacent second folding plates 22 abut against each other, the adjacent first folding plates 21 and the rubber plates 6 on the second folding plates 22 abut against each other, and the protection plates 2 are spliced. Due to the fact that the protection plate 2 is arranged in a foldable mode, when the protection plate 2 is opened and closed, occupied space is not needed, and the area of a site is saved; the gap between the adjacent first folding plate 21 and the second folding plate 22 can be blocked by the arrangement of the rubber plate 6.
When the rubber plate 6 is installed, the upper side and the lower side of the rubber plate 6 are abutted to the space between the two anti-abrasion blocks 4, one side of the rubber plate 6 is abutted to the fixed plate 41, the movable plate 42 is rotated, the movable plate 42 is abutted to the other side of the rubber plate 6, the fixture block 5112 is inserted into the clamping groove 421, the mounting plate 5 is abutted to the side face of the movable plate 42, the handle 5111 is rotated to drive the second bidirectional screw rod 511 to rotate, the second bidirectional screw rod 511 rotates to drive the two fixture blocks 5112 to approach each other, so that the first sawtooth surface on the fixture block 5112 is meshed with the second sawtooth surface, the fixture block 5112 is prevented from falling off from the clamping groove 421, the two movable plates 42 can be fixed to each other, and the rubber plate 6 is fixed in a cavity formed by the movable plate. Through the operation, the rubber plate 6 can be fixed on the protection plate 2 on the premise of not being damaged, and the abrasion of the rubber plate 6 can be prevented.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. The utility model provides an electronic folding steel protective airtight door, includes pre-buried framework (1) in the wall body, characterized by: a protection plate (2) used for plugging an opening of the frame body (1) is arranged in the frame body (1), and the protection plate (2) comprises a plurality of first folding plates (21) and a plurality of second folding plates (22) which are arranged on the frame body (1) in a sliding mode respectively;
a first sliding groove (11) is formed in the top end of the frame body (1) along the length direction of the frame body, first sliding blocks (211) connected with the first sliding groove (11) in a sliding mode are arranged on the first folding plates (21) respectively, second sliding blocks (221) connected with the first sliding groove (11) in a sliding mode are arranged on the second folding plates (22) respectively, and driving pieces (3) used for driving the adjacent first sliding blocks (211) and the second sliding blocks (221) to approach or separate from each other are arranged on the frame body (1);
it is adjacent first folded sheet (21) rotation connection each other, and its rotation junction sets up in first folded sheet (21) and keeps away from its one end that is equipped with first slider (211), and is adjacent rotation connection each other between second folded sheet (22), and its rotation junction sets up in second folded sheet (22) and keeps away from its one end that is equipped with second slider (221).
2. The electrically-operated folding steel containment door of claim 1, wherein: driving piece (3) include first two-way lead screw (31) and motor (32), be provided with holding tank (12) with first spout (11) intercommunication on framework (1), the one end and holding tank (12) of first two-way lead screw (31) length direction rotate to be connected, the other end of first two-way lead screw (31) is worn out holding tank (12) outer with the output coaxial coupling of motor (32), adjacent holding tank (12) internal thread connection in the both ends of first two-way lead screw (31) are stretched into respectively in first slider (211) and second slider (221), be provided with the opening that supplies first slider (211) or second slider (221) to remove on holding tank (12).
3. The electrically-operated folding steel containment door of claim 1, wherein: the one side that first folded sheet (21) and second folded sheet (22) moved towards each other all is provided with rubber slab (6), rubber slab (6) set up along first folded sheet (21) or second folded sheet (22) length direction.
4. The electrically foldable steel containment and containment door of claim 3, wherein: the anti-abrasion device is characterized in that anti-abrasion blocks (4) are arranged at two ends of the rubber plate (6) in the length direction respectively, and the anti-abrasion blocks (4) are connected with the first folding plate (21) or the second folding plate (22).
5. The electrically-operated folding steel containment and containment door of claim 4, wherein: set up the symmetry between abrasionproof piece (4) and be provided with fixed plate (41) and fly leaf (42), fixed plate (41) all are down L shape with fly leaf (42), the one end and the guard plate (2) of fixed plate (41) are connected perpendicularly, the one end that guard plate (2) were kept away from in fixed plate (41) is parallel with guard plate (2), fly leaf (42) rotate set up adjacent on guard plate (2) be provided with between fly leaf (42) and be used for being fixed in with fly leaf (42) the mounting with fixed plate (41) relative position, abrasionproof piece (4), fixed plate (41) and fly leaf (42) can be with rubber slab (6) butt on guard plate (2).
6. The electrically foldable steel containment and containment door of claim 5, wherein: the mounting includes mounting panel (5) and two fixture blocks (5112), be provided with second spout (51) along mounting panel (5) length direction on mounting panel (5), rotate along second spout (51) length direction in second spout (51) and be provided with second bidirectional screw rod (511), two fixture block (5112) respectively with the both ends threaded connection of second bidirectional screw rod (511), adjacent be provided with draw-in groove (421) with two fixture block (5112) joints on fly leaf (42) respectively.
7. The electrically foldable steel containment and containment door of claim 6, wherein: one end of the second bidirectional screw rod (511) in the length direction penetrates through the second sliding groove (51) and is connected with a handle (5111).
8. The electrically foldable steel containment and containment door of claim 6, wherein: the fixture block (5112) is provided with a first sawtooth surface, and the clamping groove (421) is provided with a second sawtooth surface meshed with the first sawtooth surface.
CN201920949103.0U 2019-06-21 2019-06-21 Electric folding steel protective airtight door Expired - Fee Related CN210564000U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920949103.0U CN210564000U (en) 2019-06-21 2019-06-21 Electric folding steel protective airtight door

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920949103.0U CN210564000U (en) 2019-06-21 2019-06-21 Electric folding steel protective airtight door

Publications (1)

Publication Number Publication Date
CN210564000U true CN210564000U (en) 2020-05-19

Family

ID=70626760

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920949103.0U Expired - Fee Related CN210564000U (en) 2019-06-21 2019-06-21 Electric folding steel protective airtight door

Country Status (1)

Country Link
CN (1) CN210564000U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112105196A (en) * 2020-09-23 2020-12-18 惠安县辰杰科技有限公司 5G industrial computer with stable structure
CN112900296A (en) * 2021-01-19 2021-06-04 栖城(上海)建筑设计事务所有限公司 Wind and rain corridor communicated with fire fighting lane

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112105196A (en) * 2020-09-23 2020-12-18 惠安县辰杰科技有限公司 5G industrial computer with stable structure
CN112900296A (en) * 2021-01-19 2021-06-04 栖城(上海)建筑设计事务所有限公司 Wind and rain corridor communicated with fire fighting lane

Similar Documents

Publication Publication Date Title
CN210564000U (en) Electric folding steel protective airtight door
CN210564052U (en) From threshold conversion's of taking threshold people's air defense door alive
CN214024319U (en) Auxiliary welding platform for fireproof door frame
CN203547795U (en) Remote-controlled waterproof mine closed door
CN108986264B (en) Building emergency access entrance guard control device
CN212027584U (en) Civil air defense engineering protection door with radiation protection structure
CN211549442U (en) Concrete sealing door
CN211115537U (en) Track type detachable protective airtight door plugging plate driving device and protective airtight door
CN210598629U (en) Fire prevention rolling slats door mounting structure
CN211473891U (en) Steel construction threshold biparting protection sealing door that lives
CN210564263U (en) Roll up curtain people's air defense shutoff board
CN209494454U (en) A kind of movable sill double-leaf protective hermatic door
CN210644889U (en) Fixed and movable combined smoke-blocking vertical wall
CN110566101A (en) Track type detachable protective airtight door plugging plate driving device and protective airtight door
CN220259163U (en) Civil air defense door frame correction equipment
CN213452439U (en) Security protection device of portable clean protection
CN215108477U (en) Steel construction threshold protective airtight door that lives
CN201377136Y (en) Opening fan of curtain wall with exposed frame unit
CN216122612U (en) Monitoring device for building construction management
CN216517750U (en) Motor brake release device for rolling gate
CN214941449U (en) Frame unitized curtain wall structure
CN212478967U (en) Green building safety protection door
CN117661969A (en) Civil air defense door frame reinforcing and mounting structure and method
CN210608164U (en) Box-type substation protection fixed knot constructs
CN216336307U (en) Hydraulic pressure grinder with protector

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CP03 Change of name, title or address
CP03 Change of name, title or address

Address after: 610015 No. 3, floor 1, building 1, No. 17, xihuamen street, Qingyang District, Chengdu, Sichuan

Patentee after: Chengdu Civil Air Defense architectural design and Research Institute Co.,Ltd.

Address before: 4 / F, east city hall, No.2 Renmin West Road, Chengdu, Sichuan 610015

Patentee before: Chengdu Civil Air Defense Architectural Design and Research Institute

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20200519