CN109610958A - A kind of personnel gate interlocking mechanism - Google Patents

A kind of personnel gate interlocking mechanism Download PDF

Info

Publication number
CN109610958A
CN109610958A CN201811422133.2A CN201811422133A CN109610958A CN 109610958 A CN109610958 A CN 109610958A CN 201811422133 A CN201811422133 A CN 201811422133A CN 109610958 A CN109610958 A CN 109610958A
Authority
CN
China
Prior art keywords
screw rod
connecting plate
closing piece
drive shaft
sector gear
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.)
Granted
Application number
CN201811422133.2A
Other languages
Chinese (zh)
Other versions
CN109610958B (en
Inventor
王金
吴永锡
黄浩
单新华
陆炯
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.)
Wuxi Sea Nuclear Equipment Technology Co Ltd
Original Assignee
Wuxi Sea Nuclear Equipment Technology Co Ltd
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 Wuxi Sea Nuclear Equipment Technology Co Ltd filed Critical Wuxi Sea Nuclear Equipment Technology Co Ltd
Priority to CN201811422133.2A priority Critical patent/CN109610958B/en
Publication of CN109610958A publication Critical patent/CN109610958A/en
Application granted granted Critical
Publication of CN109610958B publication Critical patent/CN109610958B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05CBOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C7/00Fastening devices specially adapted for two wings
    • E05Y2999/00

Abstract

The present invention relates to a kind of safe shell components, the personnel gate interlocking mechanism at two sect of containment of specifically linking.Its feature be include bracket, the first drive shaft and the second drive shaft, there are the first screw rod and the second screw rod on bracket, in rotation shape cooperation between first screw rod and the second screw rod and bracket, for first screw rod with the first driving between centers in being linked, the second screw rod is in be linked with the second driving between centers.There are the first closing piece and the second closing piece between first screw rod and the second screw rod, tapped through hole and the first smooth bore are provided on first closing piece and the second closing piece, the tapped through hole of first closing piece is connected with the first screw rod, first smooth bore of the first closing piece covers on the second screw rod, and in sliding shape cooperation between the two, the tapped through hole of second closing piece is connected with the second screw rod, and the first smooth bore of the second closing piece covers on the first screw rod, and in sliding shape cooperation between the two.Gate interlocking mechanism interlocking is reliable, avoids security risk.

Description

A kind of personnel gate interlocking mechanism
Technical field
The present invention relates to a kind of safe shell components, the personnel gate interlocking mechanism at two sect of containment of specifically linking.
Background technique
The major function of access lock is that safely disengaging is safe during Nuclear Power Station, operation and shutdown by permission personnel Shell, the sealing performance without damaging containment.For this purpose, the access lock of containment is designed to two pass door body structure, two pass door body Between be provided with interlocking mechanism, so as to one of door body open after, another door body can not be opened directly.
Application No. is 2014103345367 Chinese patents to disclose a kind of personnel gate interlocking mechanism.It include cam, Telescopic intermediate connecting rod and ratchet mechanism, ratchet mechanism include ratchet and pawl, and the outside of the cam is equipped with groove, groove In be equipped with rolling bearing, rolling bearing is connected by one end of pendulum pawl and intermediate connecting rod, and the other end of intermediate connecting rod and pawl connect It connects.It is interlocked using ratchet and pawl, there are the special circumstances of hook tooth and pawl teeth apical tooth can not reliably guarantee to interlock.And And the intermediate connecting rod of this personnel gate interlocking mechanism has Telescopic, when apical tooth situation occurs, can not know whether to occur Apical tooth, therefore there are security risk.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of personnel gate interlocking mechanism, gate interlocking mechanism interlocking can It leans on, avoids security risk.
To solve the above problems, the following technical schemes are provided:
A kind of the characteristics of personnel gate interlocking mechanism of the invention be include bracket, the first drive shaft and the second drive shaft, bracket On have the first screw rod and the second screw rod, be arranged side by side between the first screw rod and the second screw rod in parallel, the first screw rod and the second screw rod In rotation shape cooperation between bracket, the first screw rod is in be linked with the first driving between centers, the second screw rod and described second Driving between centers is in be linked.There are the first closing piece and the second closing piece, the first closing piece and between first screw rod and the second screw rod Tapped through hole and the first smooth bore are provided on two closing pieces, the tapped through hole of the first closing piece is connected with the first screw rod, and first First smooth bore of closing piece covers on the second screw rod, and in sliding shape cooperation, the tapped through hole of the second closing piece and the between the two Two screw rods are connected, and the first smooth bore of the second closing piece covers on the first screw rod, and in sliding shape cooperation between the two.
Wherein, the bracket includes support plate, and there are the first connecting plate and the second connecting plate, the first connection in the side of support plate Plate and the second connecting plate and support plate are perpendicular, are arranged side by side between the first connecting plate and the second connecting plate in parallel, and described first Screw rod and the second screw rod are respectively positioned on the first connecting plate and the second connecting plate, and the first screw rod and the second screw rod are respectively with first In rotation shape cooperation between connecting plate and the second connecting plate.
There is first annular boss on first screw rod one end, has the second annular convex platform on second screw rod one end.Described Have the first resigning mouthful on corresponding first connecting plate of one screw rod and the second connecting plate, corresponding first connecting plate of the second screw rod and There is the second resigning mouthful on second connecting plate, the outer diameter that the bore of the first resigning mouthful is greater than the first screw rod is less than first annular boss Outer diameter, the bore of the second resigning mouthful is greater than outer diameter of the outer diameter less than the second annular convex platform of the second screw rod, far from first annular First screw rod one end of boss sequentially passes through the first connecting plate and the first resigning mouthful of the second connecting plate reaches the second connecting plate Lateral surface except, second screw rod one end far from the second annular convex platform sequentially passes through the of the second connecting plate and the first connecting plate Two resigning mouthfuls reach except the lateral surface of the first connecting plate, have the first bullet on first screw rod one end far from first annular boss Spring abutment is cased with the first compressed spring on that first screw rod of section between the first spring base and the second connecting plate, far from the second convex annular There is second spring seat on second screw rod one end of platform, is cased on that second screw rod of section between second spring seat and the first connecting plate Two compressed springs, between first compressed spring and the second connecting plate, between the second compressed spring and the first connecting plate, it is first annular There is plane bearing between the second annular convex platform and the second connecting plate between boss and the first connecting plate, so that the first screw rod and second Screw rod is respectively between the first connecting plate and the second connecting plate in rotation shape cooperation;First closing piece and the second closing piece are respectively positioned on Between first connecting plate and the second connecting plate
The first driven sector gear is fixed on that corresponding first screw rod of section of first annular outside the boss, outside the second annular convex platform It is fixed with the second driven sector gear on that corresponding second screw rod of section of side, the first driven sector teeth face and second driven Sector teeth face is contrary.First drive shaft is vertical with the first screw rod, and has the first active in the first drive shaft Sector gear, the first active sector gear are meshed with the first driven sector gear.Second drive shaft and the second screw rod hang down Directly, and in the second drive shaft there is the second active sector gear, the second active sector gear is meshed with the second driven sector gear.
Guide rod, guide rod and the first screw rod and second are fixed on bracket between first screw rod and the second screw rod In being arranged side by side between bar, there is the second smooth bore on first closing piece and the second closing piece, the second smooth bore, which covers, is leading To on bar, and in sliding shape cooperation between the first closing piece and the second closing piece and guide rod.
The above scheme has the following advantages:
Due to personnel gate interlocking mechanism bracket of the invention, the first drive shaft and the second drive shaft, there is the first screw rod on bracket With the second screw rod, there are the first closing piece and the second closing piece between the first screw rod and the second screw rod, be all provided on the first closing piece and the second closing piece It is equipped with tapped through hole and the first smooth bore, the tapped through hole of the first closing piece is connected with the first screw rod, the first light of the first closing piece Slide-through hole covers on the second screw rod, and the tapped through hole of the second closing piece is connected with the second screw rod, the first smooth bore of the second closing piece It covers on the first screw rod.This personnel gate interlocking mechanism utilizes the mutual limit between screw thread self-locking and the first closing piece and the second closing piece System is interlocked, compared with ratchet and pawl in background technique carries out interlocking, the problem of being not in apical tooth, to greatly improve The reliability of interlocking, so that will not occur because interlocking the security risk occurred due to failure.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of personnel gate interlocking mechanism of the invention;
Fig. 2 is the stereoscopic schematic diagram of personnel gate interlocking mechanism of the invention;
Fig. 3 is the structural schematic diagram of personnel gate interlocking mechanism of the invention in the operating condition.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings.
As depicted in figs. 1 and 2, a kind of personnel gate interlocking mechanism of the invention includes bracket, the first drive shaft 1 and second Drive shaft 11 has the first screw rod 8 and the second screw rod 7 on bracket, is arranged side by side between the first screw rod 8 and the second screw rod 7 in parallel, the In rotation shape cooperation between one screw rod 8 and the second screw rod 7 and bracket, match between the first screw rod 8 and first drive shaft 1 in linkage It closes, is in be linked between the second screw rod 7 and second drive shaft 11.There is the first lock between first screw rod 8 and the second screw rod 7 It is provided with tapped through hole 23 and the first smooth bore 22 on block 6 and the second closing piece 9, the first closing piece 6 and the second closing piece 9, first The tapped through hole 23 of closing piece 6 is connected with the first screw rod 8,22 sets of the first smooth bore of the first closing piece 6 on the second screw rod 7, and In sliding shape cooperation between the two, the tapped through hole 23 of the second closing piece 9 is connected with the second screw rod 7, and the first of the second closing piece 9 is smooth logical 22 sets of hole cooperates on the first screw rod 8, and between the two in sliding shape.
The bracket includes support plate 4, and there are the first connecting plate 5 and the second connecting plate 10, the first connection in the side of support plate 4 Plate 5 and the second connecting plate 10 and support plate 4 are perpendicular, are arranged side by side between the first connecting plate 5 and the second connecting plate 10 in parallel, institute It states the first screw rod 8 and the second screw rod 7 is respectively positioned on the first connecting plate 5 and the second connecting plate 10, and the first screw rod 8 and the second screw rod 7 cooperate between the first connecting plate 5 and the second connecting plate 10 in rotation shape respectively.
There is first annular boss 19 on described first screw rod, 8 one end, there is the second annular convex platform 14 on 7 one end of the second screw rod. There is the first resigning mouthful on corresponding first connecting plate 5 of first screw rod 8 and the second connecting plate 10, the second screw rod 7 is corresponding There is the second resigning mouthful on first connecting plate 5 and the second connecting plate 10, the bore of the first resigning mouthful is greater than the outer diameter of the first screw rod 8 Less than the outer diameter of first annular boss 19, the bore of the second resigning mouthful is greater than the outer diameter of the second screw rod 7 less than the second annular convex platform 14 outer diameter, 8 one end of the first screw rod far from first annular boss 19 sequentially pass through the first connecting plate 5 and the second connecting plate 10 First resigning mouthful reaches except the lateral surface of the second connecting plate 10, far from the second annular convex platform 14 7 one end of the second screw rod according to Secondary the second resigning mouthful for passing through the second connecting plate 10 and the first connecting plate 5 reaches except the lateral surface of the first connecting plate 5, separate There is the first spring base 15 on 8 one end of the first screw rod of first annular boss 19, between the first spring base 15 and the second connecting plate 10 It is cased with the first compressed spring 16 on that first screw rod of section 8, has the second bullet on 7 one end of the second screw rod far from the second annular convex platform 14 Spring abutment 2 is cased with the second compressed spring 3, first pressure on that second screw rod of section 7 between second spring seat 2 and the first connecting plate 5 Between contracting spring 16 and the second connecting plate 10, between the second compressed spring 3 and the first connecting plate 5, first annular boss 19 and first connect There is plane bearing 18 between the second annular convex platform 14 and the second connecting plate 10 between fishplate bar 5, so that the first screw rod 8 and the second screw rod 7 cooperate between the first connecting plate 5 and the second connecting plate 10 in rotation shape respectively.First closing piece 6 and the equal position of the second closing piece 9 Between the first connecting plate 5 and the second connecting plate 10
The first driven sector gear 20, the second annular are fixed on the outside of first annular boss 19 on that corresponding first screw rod of section 8 It is fixed with the second driven sector gear 13 on that corresponding second screw rod of section 7 of 14 outside of boss, the first driven sector gear 20 The flank of tooth is contrary with the flank of tooth of the second driven sector gear 13.First drive shaft 1 is vertical with the first screw rod 8, and first There is the first active sector gear 21 in drive shaft 1, the first active sector gear 21 is meshed with the first driven sector gear 20.Institute It is vertical with the second screw rod 7 to state the second drive shaft 11, and has the second active sector gear 12 in the second drive shaft 11, second actively fans Shape gear 12 is meshed with the second driven sector gear 13.
Guide rod 17, guide rod 17 and the first screw rod 8 are fixed on bracket between first screw rod 8 and the second screw rod 7 And second between screw rod 7 in being arranged side by side, have the second smooth bore 24 on first closing piece 6 and the second closing piece 9, second is smooth Through-hole 24 covers on guide rod 17, and in sliding shape cooperation between the first closing piece 6 and the second closing piece 9 and guide rod 17..
For the ease of dismounting, first spring base 15 and second spring seat 2 are made of nuts and washers.
In use, the first drive shaft 1 of personnel gate interlocking mechanism is connected with the outer door drive mechanism of access lock, the Two drive shafts 11 are connected with the interior door drive mechanism of access lock.When work, when two sects are all in close state, the first lock Block 6 and the second closing piece 9 are located at 17 both ends of guide rod, as shown in Figure 1.When opening external door, outer door drive mechanism drives first Drive shaft 1 and the rotation of the first screw rod 8, move the first closing piece 6 to 9 side of the second closing piece, when external door is opened in place, the first lock Block 6 offsets with the second closing piece 9, as shown in figure 3, making the first closing piece 6 to far from the second closing piece 9 one at this point, only closing external door After the movement of side, inside door could be opened.Similarly, when opening inside door, interior door drive mechanism drives the second drive shaft 11 and second Bar 7 rotates, and moves the second closing piece 9 to the first closing piece 6, and when inside door is opened in place, the second closing piece 9 offsets with the first closing piece 6, Make the second closing piece 9 to after moving far from 6 side of the first closing piece at this point, only closing inside door, external door could be opened.

Claims (5)

1. a kind of personnel gate interlocking mechanism, it is characterised in that including bracket, the first drive shaft (1) and the second drive shaft (11), There are the first screw rod (8) and the second screw rod (7) on bracket, is arranged side by side between the first screw rod (8) and the second screw rod (7) in parallel, the In rotation shape cooperation between one screw rod (8) and the second screw rod (7) and bracket, it is between the first screw rod (8) and first drive shaft (1) It is linked, is in be linked between the second screw rod (7) and second drive shaft (11);First screw rod (8) and second There are the first closing piece (6) and the second closing piece (9) between bar (7), is provided with tapped through hole on the first closing piece (6) and the second closing piece (9) (23) it is connected with the first smooth bore (22), the tapped through hole (23) of the first closing piece (6) with the first screw rod (8), the first closing piece (6) The first smooth bore (22) cover on the second screw rod (7), and in sliding shape cooperation between the two, the screw thread of the second closing piece (9) is logical Hole (23) is connected with the second screw rod (7), and the first smooth bore (22) of the second closing piece (9) covers on the first screw rod (8), and the two Between in sliding shape cooperation.
2. personnel gate interlocking mechanism as described in claim 1, it is characterised in that the bracket includes support plate (4), support There are the first connecting plate (5) and the second connecting plate (10) in the side of plate (4), the first connecting plate (5) and the second connecting plate (10) and branch Fagging (4) is perpendicular, is arranged side by side between the first connecting plate (5) and the second connecting plate (10) in parallel, first screw rod (8) and Second screw rod (7) is respectively positioned on the first connecting plate (5) and the second connecting plate (10), and the first screw rod (8) and the second screw rod (7) are equal Respectively in rotation shape cooperation between the first connecting plate (5) and the second connecting plate (10).
3. personnel gate interlocking mechanism as claimed in claim 2, it is characterised in that have first on described first screw rod (8) one end Annular convex platform (19) has the second annular convex platform (14) on the second screw rod (7) one end;First screw rod (8) corresponding first connects There are the first resigning mouthful, corresponding first connecting plate (5) of the second screw rod (7) and second on fishplate bar (5) and the second connecting plate (10) There is the second resigning mouthful on connecting plate (10), the outer diameter that the bore of the first resigning mouthful is greater than the first screw rod (8) is less than first annular The outer diameter of boss (19), the outer diameter that the bore of the second resigning mouthful is greater than the second screw rod (7) are outer less than the second annular convex platform (14) Diameter, the first screw rod (8) one end far from first annular boss (19) sequentially pass through the first connecting plate (5) and the second connecting plate (10) The first resigning mouthful reach except the lateral surfaces of the second connecting plate (10), the second screw rod far from the second annular convex platform (14) (7) one end sequentially passes through the second connecting plate (10) and the second resigning mouthful of the first connecting plate (5) reaches the first connecting plate (5) Except lateral surface, there are the first spring base (15), the first spring base on the first screw rod (8) one end far from first annular boss (19) (15) the first compressed spring (16) are cased on that first screw rod of section (8) between the second connecting plate (10), far from the second convex annular Have second spring seat (2) on the second screw rod (7) one end of platform (14), that section between second spring seat (2) and the first connecting plate (5) It is cased on second screw rod (7) the second compressed spring (3), between first compressed spring (16) and the second connecting plate (10), second Between compressed spring (3) and the first connecting plate (5), between first annular boss (19) and the first connecting plate (5) and the second annular convex platform (14) have between the second connecting plate (10) plane bearing (18), so that the first screw rod (8) and the second screw rod (7) are respectively with In rotation shape cooperation between one connecting plate (5) and the second connecting plate (10);First closing piece (6) and the second closing piece (9) are respectively positioned on Between first connecting plate (5) and the second connecting plate (10).
4. personnel gate interlocking mechanism as claimed in claim 3, it is characterised in that corresponding on the outside of first annular boss (19) It is fixed with the first driven sector gear (20) on that first screw rod of section (8), that corresponding section the on the outside of the second annular convex platform (14) The second driven sector gear (13), the flank of tooth and the second driven fan of the first driven sector gear (20) are fixed on two screw rods (7) The flank of tooth of shape gear (13) is contrary;First drive shaft (1) is vertical with the first screw rod (8), and in the first drive shaft (1) There is the first active sector gear (21), the first active sector gear (21) is meshed with the first driven sector gear (20);It is described Second drive shaft (11) is vertical with the second screw rod (7), and has the second active sector gear (12) in the second drive shaft (11), and second Active sector gear (12) is meshed with the second driven sector gear (13).
5. the personnel gate interlocking mechanism as described in any one of claim 1 ~ 4, it is characterised in that first screw rod (8) and It is fixed on bracket between second screw rod (7) guide rod (17), between guide rod (17) and the first screw rod (8) and the second screw rod (7) In being arranged side by side, there are the second smooth bore (24), the second smooth bore on first closing piece (6) and the second closing piece (9) (24) it covers on guide rod (17), and matches in sliding shape between the first closing piece (6) and the second closing piece (9) and guide rod (17) It closes.
CN201811422133.2A 2018-11-27 2018-11-27 Personnel gate interlocking mechanism Active CN109610958B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811422133.2A CN109610958B (en) 2018-11-27 2018-11-27 Personnel gate interlocking mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811422133.2A CN109610958B (en) 2018-11-27 2018-11-27 Personnel gate interlocking mechanism

Publications (2)

Publication Number Publication Date
CN109610958A true CN109610958A (en) 2019-04-12
CN109610958B CN109610958B (en) 2023-12-01

Family

ID=66004790

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811422133.2A Active CN109610958B (en) 2018-11-27 2018-11-27 Personnel gate interlocking mechanism

Country Status (1)

Country Link
CN (1) CN109610958B (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4291500A (en) * 1979-08-30 1981-09-29 Lakeside Bridge & Steel Co. Apparatus for opening and closing air lock doors
CN102926608A (en) * 2012-10-26 2013-02-13 大连宝原核设备有限公司 Transmission box arranged on intermediate part of personnel air lock
CN103670112A (en) * 2013-12-27 2014-03-26 山东核电设备制造有限公司 Transmission cases on two sides of personnel airlock
CN103671745A (en) * 2013-12-27 2014-03-26 山东核电设备制造有限公司 Transmission device
CN203701882U (en) * 2013-12-17 2014-07-09 中国人民解放军理工大学 Main door leaf latching device for metro protective airtight partition door
CN104153659A (en) * 2014-07-14 2014-11-19 中国核电工程有限公司 Personnel airlock interlocking mechanism
CN104153660A (en) * 2014-07-14 2014-11-19 中国核电工程有限公司 Personnel airlock locking mechanism
CN105672776A (en) * 2016-03-29 2016-06-15 河南民生特种装备有限公司 Electromagnetic shielding door with flexible shaft emergency opening device
CN108729789A (en) * 2018-05-18 2018-11-02 中广核研究院有限公司 A kind of personnel gate interlocking mechanism
CN209799656U (en) * 2018-11-27 2019-12-17 无锡海核装备科技有限公司 Personnel gate interlocking mechanism

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4291500A (en) * 1979-08-30 1981-09-29 Lakeside Bridge & Steel Co. Apparatus for opening and closing air lock doors
CN102926608A (en) * 2012-10-26 2013-02-13 大连宝原核设备有限公司 Transmission box arranged on intermediate part of personnel air lock
CN203701882U (en) * 2013-12-17 2014-07-09 中国人民解放军理工大学 Main door leaf latching device for metro protective airtight partition door
CN103670112A (en) * 2013-12-27 2014-03-26 山东核电设备制造有限公司 Transmission cases on two sides of personnel airlock
CN103671745A (en) * 2013-12-27 2014-03-26 山东核电设备制造有限公司 Transmission device
CN104153659A (en) * 2014-07-14 2014-11-19 中国核电工程有限公司 Personnel airlock interlocking mechanism
CN104153660A (en) * 2014-07-14 2014-11-19 中国核电工程有限公司 Personnel airlock locking mechanism
CN105672776A (en) * 2016-03-29 2016-06-15 河南民生特种装备有限公司 Electromagnetic shielding door with flexible shaft emergency opening device
CN108729789A (en) * 2018-05-18 2018-11-02 中广核研究院有限公司 A kind of personnel gate interlocking mechanism
CN209799656U (en) * 2018-11-27 2019-12-17 无锡海核装备科技有限公司 Personnel gate interlocking mechanism

Also Published As

Publication number Publication date
CN109610958B (en) 2023-12-01

Similar Documents

Publication Publication Date Title
CN104695358B (en) A kind of door-hinge drive device of gate
CN105696874B (en) A kind of refrigerator having door-in-door self-locking device and refrigerator having door-in-door
WO2021129387A1 (en) Vehicle micro-actuator applied to automotive fuel tank cover or charging box cover
CN101974994A (en) Three-way locking device and three-way locking bolt electric control semi-automatic lock adopting electric control operation
CN110526092A (en) The asynchronous door knife assembly of elevator cage door lock
CN109610958A (en) A kind of personnel gate interlocking mechanism
KR101256451B1 (en) Closing force assistant device for door closer
CN108278408B (en) It is a kind of can in external switch, manual and electric double-purpose valve actuator
WO2022000933A1 (en) Automatic-locking hydraulic hoist oil cylinder device and control method therefor
CN209799656U (en) Personnel gate interlocking mechanism
CN110454012A (en) A kind of closed guard gate's locking transmission mechanism
CN208184591U (en) Convenient for current explosion proof door
CN204876987U (en) Pivot formula system of windowing
CN109098619A (en) A kind of door suspension system
CN209469410U (en) A kind of blowout preventing control apparatus
CN205422227U (en) Locking device of insurance cabinet door fan
KR200468707Y1 (en) Assembly for connecting clutch of gear box for anti panic assembly
CN204002011U (en) A kind of automatic anti-theft door lock
CN208935532U (en) Gas-fired valve with diffusion function
CN214146762U (en) Multi-turn rotary electric device for pneumatic valve
CN209721320U (en) A kind of elevator hall door lock device
CN101818599B (en) Escort Lock
EP2412902B1 (en) A sectional door with an entrance door having a closure system
CN103075069B (en) A kind of safe door body sealed container door
CN205805212U (en) A kind of locking mechanism

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
GR01 Patent grant
GR01 Patent grant