CN111155845A - Prevent fire door magnetic switch - Google Patents
Prevent fire door magnetic switch Download PDFInfo
- Publication number
- CN111155845A CN111155845A CN202010106470.1A CN202010106470A CN111155845A CN 111155845 A CN111155845 A CN 111155845A CN 202010106470 A CN202010106470 A CN 202010106470A CN 111155845 A CN111155845 A CN 111155845A
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- China
- Prior art keywords
- lock body
- door
- gear
- main body
- fixed
- 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.)
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- 230000005540 biological transmission Effects 0.000 claims abstract description 53
- 230000005389 magnetism Effects 0.000 claims abstract description 31
- 239000002184 metal Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
- E05B47/0012—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with rotary electromotors
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
- E05B2047/0014—Constructional features of actuators or power transmissions therefor
- E05B2047/0018—Details of actuator transmissions
- E05B2047/002—Geared transmissions
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
- E05B2047/0014—Constructional features of actuators or power transmissions therefor
- E05B2047/0018—Details of actuator transmissions
- E05B2047/0024—Cams
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B2047/0048—Circuits, feeding, monitoring
- E05B2047/005—Opening, closing of the circuit
Landscapes
- Special Wing (AREA)
Abstract
The invention discloses a fireproof door magnetic switch, which comprises a door magnetic main body component, a right door magnetic lock body component, a left door magnetic lock body component, a main body driving motor, a main body main gear, a main body transmission gear, a radial bevel gear, an axial bevel gear, a transmission hexagonal gear, a transmission connecting rod, a lock catch, a lock tongue, a driving cam, a driving crank, a driven cam, a driven crank, a pushing slide block, a driven wheel, a lock body motor, a gear supporting shaft, a lock body main gear, a gear locking screw, a lock body driven gear and a gear transmission shaft. Door magnetism main part subassembly is fixed in prevents fire door frame, and right side door magnetism lock body subassembly and left door magnetism lock body subassembly symmetry are fixed in the door leaf, have in the left and right sides door magnetism lock body subassembly to drive gear and crank cam mechanism's cooperation transmission through the lock body motor, drive the back-and-forth movement that is fixed in the spring bolt that promotes in the slider, with fix the hasp cooperation in preventing the door magnetism main part subassembly on the fire door frame, realize the locking of door leaf and open and shut.
Description
Technical Field
The invention relates to an electromagnetic switch device, in particular to a magnetic switch of a fireproof door.
Background
The traditional door magnetic switch of preventing fire door mainly comprises switch and magnet two parts, encapsulates magnet in the door magnetic shell for produce invariable magnetic force, through the normally open tongue tube of internally mounted to and the distance of door leaf and door frame, realize preventing the switching of fire door. Once electromagnetic failure or electric connection failure occurs, the door magnetic switch cannot be used, and the fireproof door switch structure fails. And the existing door magnetic switch has more fixing screws which leak outside, and the anti-theft effect is not good.
Disclosure of Invention
In order to solve the problems, the invention provides a fireproof door magnetic switch, wherein a motor in a lock body assembly fixed on a fireproof door leaf drives a gear to be in matched transmission with a crank cam mechanism, so that a lock tongue is driven to move back and forth and is matched with a lock catch in a door magnetic main body assembly fixed on a fireproof door frame, and the locking and the opening and closing of the door leaf are realized.
The technical scheme adopted by the invention is as follows: the utility model provides a prevent fire door magnetic switch, includes door magnetism main part subassembly, right side door magnetism lock body subassembly, left side door magnetism lock body subassembly, door magnetism main part screw, door magnetism lock body screw, and door magnetism lock body screw is fixed in through door magnetism main part screw on preventing fire door frame, and right side door magnetism lock body subassembly, left side door magnetism lock body subassembly are fixed in through door magnetism lock body screw symmetry on preventing fire door leaf.
The door magnetic body component comprises a main body motor outer side support, a main body motor inner side support, a main body driving motor, a main body main gear, a main body transmission gear, a transmission part support, a transmission part U-shaped plate, a connecting shaft, a fixing pin, a cushion nut and a set screw, and further comprises a radial bevel gear, an axial bevel gear, a transmission hexagonal, a locking block, a transmission plate, a transmission connecting rod, an opening clamp and a lock catch, wherein the door magnetic body component is fixed on a fireproof door frame through a door magnetic body base, the main body main gear is connected with the main body driving motor through the connecting shaft, the main body main gear and the main body transmission gear are positioned on the same plane and are in matched transmission, the main body transmission gear is connected with the radial bevel gear through the connecting shaft, the radial bevel gear is fixed in a side hole in the transmission part U-shaped, the inside is provided with a transmission connecting rod connected by a fixed pin.
Right side door magnetic lock body subassembly and left door magnetic lock body subassembly symmetric distribution, its inner structure is unanimous, right side door magnetic lock body subassembly and left door magnetic lock body subassembly include: the lock body shell is fixed on the outer sides of the right door magnetic lock body component and the left door magnetic lock body component through the lock body base through the fixing screws, a round hole is arranged at a position corresponding to the lock tongue, the gear transmission shaft connects the driving cam with the lock body driven gear through the round hole at a corresponding position in the middle of the lock body mounting plate, and the lock body motor is fixed on the inner surface of the lock body mounting plate through the lock body motor support, the lock body main gear is connected with a lock body motor shaft through a gear supporting shaft, the lock body main gear is locked by a gear locking screw, and the lock body main gear and the lock body driven gear are matched and driven to rotate the driving cam.
Furthermore, the outer side of the door magnet main body base is provided with a wedge-shaped boss which is matched and connected with a wedge-shaped groove of the door magnet main body sliding seat, and the door magnet main body housing is of a metal plate structure and is fixed on the outer side of the door magnet main body component.
Furthermore, a fixed sliding groove is welded in the door magnet main body housing and used for sliding of a fixing machine of the lock catch.
Furthermore, the main body motor outer side support and the main body motor inner side support are fixed on the door magnet main body sliding seat and used for installing the main body driving motor.
Furthermore, the transmission hexagonal is vertically distributed with the radial bevel gear, and is fixed in the driving medium U-shaped plate through a locking block, and the axial bevel gear is fixed in the locking block and forms transmission fit with the radial bevel gear.
Furthermore, the transmission connecting rod is fixed in the corresponding round hole of the opening clamp through the nut with the gasket, the opening clamp is of an opening inner hole structure, and a lock catch is arranged inside the opening clamp and locked through a fastening screw.
Furthermore, the outside of the lock body base is provided with a wedge-shaped boss which is matched and connected with a wedge-shaped groove of the lock body sliding seat, and the lock body housing is of a metal plate structure.
Furthermore, the inner Z-shaped connecting plate and the outer Z-shaped connecting plate are fixed on the lock body base, one side of the inner Z-shaped connecting plate and one side of the outer Z-shaped connecting plate are used for fixing the lock body mounting plate, a circular through hole is formed in the middle of the lock body mounting plate, and a lug boss is arranged on one side of the lock body mounting plate and used for pushing the sliding block to slide.
Furthermore, the driven cam is parallelly fixed on one side of the driving cam, a driving crank is fixedly installed between the driving cam and the driven cam, one end of the driven crank is fixed at the center of the driven crank, one end of the driven crank is connected and fixed in a clamping groove corresponding to the pushing sliding block through a follow-up wheel, and the lock tongue is fixed on the upper end face of the pushing sliding block through a screw.
Furthermore, the connection part of the lock body motor support and the lock body mounting plate is provided with a long hole, and fine adjustment can be realized through a fine adjustment screw.
Compared with the prior art, the invention has the beneficial effects that: (1) the mounting screws of the door magnet main body assembly and the left and right door magnet lock body assemblies are hidden, so that the anti-theft function is stronger; (2) the motor in the door magnetic lock body assembly drives the lock tongue and the lock catch to be locked with each other, so that the stability is higher; (3) through the motor drive gear transmission among the door magnetism main part subassembly, realize because prevent that fire door leaf is uneven with preventing that fire door frame, the fine setting of hasp realizes the accurate counterpoint of spring bolt and hasp, and the installation commonality is stronger.
Drawings
Fig. 1 is a schematic view showing the installation of the magnetic switch of the fireproof door of the present invention.
Fig. 2 is a schematic structural view of the magnetic switch of the fireproof door of the present invention.
Fig. 3 is a schematic structural view of the magnetic body assembly of the magnetic switch of the fireproof door of the present invention.
Fig. 4 is a schematic structural view of a magnetic body housing of the magnetic body assembly of the magnetic switch of the fireproof door of the present invention.
Fig. 5 and 6 are schematic partial structural views of the magnetic body assembly of the magnetic switch of the fireproof door of the present invention.
Fig. 7 and 8 are front structural schematic views of the magnetic lock body assembly of the magnetic switch door of the fireproof door of the invention.
Fig. 9 is a rear view structural diagram of the magnetic lock body assembly of the magnetic switch door of the fireproof door of the present invention.
Fig. 10 is a schematic structural diagram of the lock body motor driving mechanism of the magnetic lock body assembly of the magnetic switch door of the fireproof door of the invention.
1-a door magnet body assembly; 2-right door magnetic lock body component; 3-left door magnetic lock body component; 4-door magnetic body screw; 5-door magnetic lock body screw; 101-door magnet body base; 102-a door magnet body slide; 103-door magnet body cover; 104-fixed chute; 105-a body motor outer support; 106-main body motor inside support; 107-body drive motor; 108-main body main gear; 109-body drive gear; 110 — a transmission support; 111-transmission member U-plate; 112-a connecting shaft; 113-radial bevel gear; 114-axial bevel gear; 115-drive hexagonal; 116-a locking block; 117 — a drive plate; 118-a drive link; 119-a fixation pin; 120-opening card; 121-washer nut; 122-locking and buckling; 123-set screw; 201-lock body base; 202-a lock body slide; 203-lock body housing; 204-a set screw; 205-a locking tongue; 206-inside Z-joint plate; 207-outer Z-web; 208-a lock body mounting plate; 209-active cam; 210-a driving crank; 211-an idler cam; 212-driven crank; 213-pushing the slide block; 214-follower wheel; 215-lock body motor; 216-lock body motor support; 217-fine tuning screws; 218-gear support shaft; 219-lock body main gear; 220-gear locking screw; 221-lock body driven gear; 222-gear drive shaft.
Detailed Description
The present invention will be further described with reference to specific examples, which are illustrative of the invention and are not to be construed as limiting the invention.
Example (b): as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9, and fig. 10, a magnetic switch of a fire door includes a magnetic main body assembly 1, a magnetic lock body assembly 2, a magnetic lock body assembly 3, a magnetic main body screw 4, and a magnetic lock body screw 5, wherein the magnetic main body assembly 1 includes: door magnetism main part base 101, door magnetism main part slide 102, door magnetism main part housing 103, fixed spout 104, main part motor outside is supported 105, main part motor inside is supported 106, main part driving motor 107, main part master gear 108, main part drive gear 109, driving part support 110, driving part U type board 111, connecting axle 112, radial bevel gear 113, axial bevel gear 114, transmission hexagonal 115, latch segment 116, driving plate 117, transmission connecting rod 118, fixed pin 119, opening card 120, belt pad nut 121, hasp 122, holding screw 123, right door magnetism lock body subassembly 2 and left door magnetism lock body subassembly 3 symmetric distribution, its internal structure is unanimous, include: lock body base 201, lock body slide 202, lock body cover 203, set screw 204, lock tongue 205, inside Z-shaped connecting plate 206, outside Z-shaped connecting plate 207, lock body mounting plate 208, driving cam 209, driving crank 210, driven cam 211, driven crank 212, push slider 213, follower wheel 214, lock body motor 215, lock body motor support 216, fine adjustment screw 217, gear support shaft 218, lock body main gear 219, gear locking screw 220, lock body driven gear 221, gear drive shaft 222.
The door magnet main body component of the embodiment has a structure with the functions of anti-dismounting and anti-theft.
The door magnetism main part subassembly 1 is fixed in the fire door money through the mutual grafting cooperation of door magnetism main part base 101 that has the wedge groove and door magnetism main part slide 102 that has the boss, covers door magnetism main part screw through outside door magnetism main part housing 103, realizes hiding of fixed screw.
The magnetic lock body component of the door has a structure with anti-dismantling and anti-theft functions.
Right side magnetic lock body subassembly 2 and left door magnetic lock body subassembly 3 symmetric distribution, its inner structure is unanimous, mutually supports through the lock body base 201 that has the wedge groove and the lock body slide 202 that has the wedge boss and is fixed in on preventing fire door leaf, covers door magnetic lock body screw 5 through outside lock body housing 203, realizes hiding of fixed screw and prevents burglary.
The door magnetic lock body component is a mechanism which realizes the forward and backward movement of the lock tongue through the transmission of a gear and a cam crank by a micro driving motor.
The lock body motor 215 in the magnetic lock body assembly realizes the automatic back and forth movement of the bolt 205 through the driving of the lock body main gear 219 and the lock body slave gear 221, the driving cam 209, the driving crank 210, the driven cam 211 and the driven crank 212, and realizes the automatic locking and opening and closing of the door leaf and the door frame of the fireproof door through the cooperation of the door magnet main body base 101 with the wedge-shaped groove and the door magnet main body sliding base 102 with the wedge-shaped boss in the lock catch 122 in the door magnet main body assembly 1 fixed on the door frame of the fireproof door.
The door magnetic component assembly is a mechanism for realizing fine adjustment of the lock catch through the transmission of a micro motor through a gear, a radial bevel gear and an axial bevel gear.
The latch 122 in the door magnet body assembly 1 can drive the main body main gear 108, the main body transmission gear 109, the radial bevel gear 113, the axial bevel gear 114 and the transmission connecting rod 118 to be pushed in a matching manner through the main body driving motor 107, so that the depth difference of the fireproof door frame and the fireproof door leaf which are not in the same plane can be adjusted, the fine adjustment of the latch 122 is realized, and the latch is precisely aligned with the bolt 205.
After the installation of the magnetic switch of the fireproof door is completed, the alignment between the latch 122 and the latch 205 needs to be adjusted, the latch 122 in the door magnet main assembly 1 can drive the main gear 108, the main gear 109, the radial bevel gear 113 and the axial bevel gear 114 through the main drive motor 107, so as to realize the forward and backward movement of the transmission link 118 on the transmission hexagon 115, thereby driving the latch 122 connected with the transmission link 118 to move, and the fine adjustment of the position of the latch 122 is realized by adjusting the depth difference that the doorframe and the fireproof door leaf are not in the same plane, so as to align with the latch 205.
When the magnetic switch of the fireproof door normally operates, the right door magnetic lock body component 2 fixed on the right door of the fireproof door and the left door magnetic lock body component 3 fixed on the left door leaf of the fireproof door are consistent in internal structure, the lock body main gear 219 is driven by the lock body motor 215, the lock body driven by the gear 221 and the crank cam mechanism is driven to move the lock tongue 205 fixed in the pushing sliding block 213 back and forth, and the lock tongue 205 and the lock catch 122 are matched with each other in the door magnetic main body component 1 fixed on the door frame of the fireproof door, so that the purposes of locking and unlocking the lock tongue 205 and the lock catch 122 are achieved.
Claims (10)
1. The utility model provides a prevent fire door magnetic switch, includes door magnetism main part subassembly (1), right side door magnetism lock body subassembly (2), left side door magnetism lock body subassembly (3), door magnetism main part screw (4), door magnetism lock body screw (5), its characterized in that: the door magnet main body assembly (1) is fixed on a fireproof door frame through a door magnet main body screw (4), and the right door magnet lock body assembly (2) and the left door magnet lock body assembly 3 are symmetrically fixed on a fireproof door leaf through door magnet lock body screws (5);
the door magnet main body component (111) comprises a main body motor outer side support (105), a main body motor inner side support (106), a main body driving motor (107), a main body main gear (108), a main body transmission gear (109), a transmission part support (110), a transmission part U-shaped plate (111), a connecting shaft (112), a fixing pin (119), a nut with a pad (121), a set screw (123), a radial bevel gear (113), an axial bevel gear (114), a transmission hexagonal gear (115), a locking block (116), a transmission plate (117), a transmission connecting rod (118), an opening clamp (120) and a lock catch (122), wherein the door magnet main body component (1) is fixed on a fireproof door frame through a door magnet main body base (101), the main body main gear (108) is connected with the main body driving motor (107) through the connecting shaft (112), and the main body main gear (108) and the main body transmission gear (109) are, the main body transmission gear (109) is connected with a radial bevel gear (113) through a connecting shaft (112), the radial bevel gear (113) is fixed in an inner hole of a transmission part U-shaped plate (111), the transmission part U-shaped plate (111) is fixed on a door magnet main body sliding seat (102) through a transmission part support (110), a transmission plate (117) is fixed on a transmission hexagonal seat (115) in groups, and a transmission connecting rod (118) connected through a fixing pin (119) is arranged inside the transmission plate;
right side door magnetic lock body subassembly (2) and left door magnetic lock body subassembly (3) symmetric distribution, its inner structure is unanimous, right side door magnetic lock body subassembly (2) and left door magnetic lock body subassembly (3) include: the lock body assembly comprises a lock body base (201), a lock body sliding seat (202), a lock body cover (203), a fixing screw (204), a lock body motor (215), a lock body motor support (216), a fine adjustment screw (217), a gear support shaft (218), a lock body main gear (219), a gear locking screw (220), a lock body driven gear (221) and a gear transmission shaft (222), wherein the right door magnetic lock body assembly (2) and the left door magnetic lock body assembly (3) further comprise a lock tongue (205), an inner side Z-shaped connecting plate (206), an outer side Z-shaped connecting plate (207), a lock body mounting plate (208), a driving cam (209), a driving crank (210), a driven cam (211), a driven crank (212), a pushing sliding block (213) and a driven wheel (214), the right door magnetic lock body assembly (2) and the left door magnetic lock body assembly (3) are symmetrically distributed and are fixed on, the lock body housing (203) is fixed on the outer sides of the right door magnetic lock body component (2) and the left door magnetic lock body component (3) through a fixing screw (204), a round hole is formed in the position corresponding to a bolt (205), a gear transmission shaft (222) connects a driving cam (209) with a lock body driven gear (221) through the round hole in the middle corresponding position of the lock body mounting plate (208), a lock body motor (215) is fixed on the inner surface of the lock body mounting plate (208) through a lock body motor support (216), a lock body main gear (219) is connected with the lock body motor (215) through a gear support shaft (218), a gear locking screw (220) realizes locking of the lock body main gear (219), and the lock body main gear (219) and the lock body driven gear (221) are matched and driven to realize rotation of the driving cam (209).
2. The fire door magnetic switch of claim 1, wherein: the outer side of the door magnet main body base (101) is provided with a wedge-shaped boss which is matched and connected with a wedge-shaped groove of the door magnet main body sliding seat (102), and the door magnet main body housing (103) is of a metal plate structure and is fixed on the outer side of the door magnet main body component (1).
3. The fire door magnetic switch of claim 1, wherein: the door magnet main body cover (103) is internally welded with a fixed sliding chute (104) for sliding of a fixing machine of the lock catch (122).
4. The fire door magnetic switch of claim 1, wherein: the main body motor outer side support (105) and the main body motor inner side support (106) are fixed on the door magnet main body sliding seat (102) and used for installing a main body driving motor (107).
5. The fire door magnetic switch of claim 1, wherein: the transmission hexagonal gear (115) and the radial bevel gear (113) are vertically distributed, and are fixed on the transmission part U-shaped plate (111) through the locking block (116), and the axial bevel gear (114) is fixed on the locking block (116) and forms transmission fit with the radial bevel gear (113).
6. The fire door magnetic switch of claim 1, wherein: the transmission connecting rod (118) is fixed in a corresponding round hole of the opening clamp (120) through a nut (121) with a gasket, the opening clamp (120) is of an opening inner hole structure, and a lock catch (122) is arranged inside and locked through a set screw (123).
7. The fire door magnetic switch of claim 1, wherein: the outer side of the lock body base (201) is provided with a wedge-shaped boss which is matched and connected with a wedge-shaped groove of the lock body sliding seat (202), and the lock body housing (203) is of a sheet metal structure.
8. The fire door magnetic switch of claim 1, wherein: one side of the inner Z-shaped connecting plate (206) and one side of the outer Z-shaped connecting plate (207) are fixed on the lock body base (201), one side of the inner Z-shaped connecting plate is used for fixing the lock body mounting plate (208), a circular through hole is formed in the middle of the lock body mounting plate (208), and a boss is arranged on one side of the lock body mounting plate and used for pushing the sliding block (213) to slide.
9. The fire door magnetic switch of claim 1, wherein: driven cam (211) parallel be fixed in drive cam (209) one side, fixed mounting has drive crank (210) between drive cam (209) and driven cam (211), driven crank (212) one end is fixed in driven crank (212) centre of a circle, one end is connected through follower wheel (214) and is fixed in the draw-in groove that promotes slider (213) and correspond, spring bolt (205) are fixed in through the screw and are promoted slider (213) up end.
10. The fire door magnetic switch of claim 1, wherein: the lock body motor support (216) and the lock body mounting plate (208) are connected through a long hole, and fine adjustment can be achieved through a fine adjustment screw (217).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010106470.1A CN111155845B (en) | 2020-02-21 | 2020-02-21 | Prevent fire door magnetic switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010106470.1A CN111155845B (en) | 2020-02-21 | 2020-02-21 | Prevent fire door magnetic switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111155845A true CN111155845A (en) | 2020-05-15 |
| CN111155845B CN111155845B (en) | 2021-02-26 |
Family
ID=70566064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010106470.1A Active CN111155845B (en) | 2020-02-21 | 2020-02-21 | Prevent fire door magnetic switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111155845B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140133490A (en) * | 2014-09-29 | 2014-11-19 | 최성오 | Fire prevention glass automatic door for practicable of semi automatic |
| CN204826924U (en) * | 2015-07-17 | 2015-12-02 | 上海玥豪锁具有限公司 | Electric control lock |
| CN205194028U (en) * | 2015-12-07 | 2016-04-27 | 上海零线电气有限公司 | Fire door signal feedback device structure is prevented to normal close formula |
| CN207048627U (en) * | 2017-06-30 | 2018-02-27 | 苏州市时代工程咨询设计管理有限公司 | A kind of fire resistant doorsets open in usual |
| CN208089163U (en) * | 2018-03-24 | 2018-11-13 | 南京欣木防水工程有限公司 | A kind of intelligent fire-proofing door |
| CN209087612U (en) * | 2018-08-23 | 2019-07-09 | 广东睿安特电子科技有限公司 | Fire resistant doorsets door status switch |
-
2020
- 2020-02-21 CN CN202010106470.1A patent/CN111155845B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140133490A (en) * | 2014-09-29 | 2014-11-19 | 최성오 | Fire prevention glass automatic door for practicable of semi automatic |
| CN204826924U (en) * | 2015-07-17 | 2015-12-02 | 上海玥豪锁具有限公司 | Electric control lock |
| CN205194028U (en) * | 2015-12-07 | 2016-04-27 | 上海零线电气有限公司 | Fire door signal feedback device structure is prevented to normal close formula |
| CN207048627U (en) * | 2017-06-30 | 2018-02-27 | 苏州市时代工程咨询设计管理有限公司 | A kind of fire resistant doorsets open in usual |
| CN208089163U (en) * | 2018-03-24 | 2018-11-13 | 南京欣木防水工程有限公司 | A kind of intelligent fire-proofing door |
| CN209087612U (en) * | 2018-08-23 | 2019-07-09 | 广东睿安特电子科技有限公司 | Fire resistant doorsets door status switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111155845B (en) | 2021-02-26 |
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