CN109281544B - Electromagnetic lock for track traffic half-height safety door - Google Patents
Electromagnetic lock for track traffic half-height safety door Download PDFInfo
- Publication number
- CN109281544B CN109281544B CN201710597963.8A CN201710597963A CN109281544B CN 109281544 B CN109281544 B CN 109281544B CN 201710597963 A CN201710597963 A CN 201710597963A CN 109281544 B CN109281544 B CN 109281544B
- Authority
- CN
- China
- Prior art keywords
- lock
- electromagnetic lock
- limit switch
- rocker arm
- lock shaft
- 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.)
- Active
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910052742 iron Inorganic materials 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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
- E05B47/06—Controlling mechanically-operated bolts by electro-magnetically-operated detents
Landscapes
- Lock And Its Accessories (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
An electromagnetic lock for a half-height safety door of rail transit relates to the technical field of mechanical electromagnetic locks. One structure of the invention includes a rectangular electromagnetic lock frame. The electromagnet is fixed on the right side of the electromagnetic lock frame through the electromagnet bracket. The upper part in the electromagnetic lock frame is fixedly connected with a front lock shaft sleeve, a limit switch bracket and a rear lock shaft sleeve in sequence from left to right, a lock shaft is horizontally arranged in through holes in the middle parts of the front lock shaft sleeve and the rear lock shaft sleeve, and one end of the lock shaft extends out of the electromagnetic lock frame and is fixedly connected with a lock tongue. The middle section of the lock shaft is connected with a limit switch iron, and four corners of the level of the limit switch iron are respectively provided with symmetrical inclined plane structures. Four contact sensors are arranged on the limit switch support, and the positions of the four contact sensors are respectively matched with four inclined plane structures on the limit switch impact iron. The lower end of an electromagnet shaft vertically arranged on the electromagnet is connected with the lock shaft in a linkage way through a lower rocker arm, a connecting rod and an upper rocker arm. Compared with the prior art, the invention has the advantages of simple structure, low requirement on manufacturing and assembling precision, high reliability and good stability.
Description
Technical Field
The invention relates to the technical field of mechanical electromagnetic locks, in particular to an electromagnetic lock suitable for a half-height safety door of rail transit.
Background
The track traffic shielding door or the safety door requires that each sliding door unit is provided with a set of locking device. The locking device can be automatically released when the sliding door is automatically opened, and the locking device can be manually released by adopting a door opening handle or a key in case of failure. After the sliding door is closed, the locking device is used for preventing the door from being opened by external force.
Generally, sliding doors are typically locked using electromagnetic locks. The electromagnetic lock commonly used at present has the advantages of complex structure, high requirement on manufacturing and assembling precision, high cost, low service life and poor stability. Greatly influences the safety of rail transit, adds trouble to maintenance personnel at stations, and seriously influences the competitiveness of shield door manufacturers in the market.
Meanwhile, the conventional safety door electromagnetic locks using passive travel switches all use 1 travel switch to detect the locking and unlocking positions of the electromagnetic locks. Therefore, the electromagnetic lock information collected by the safety door controller DCU only has two states of locking and unlocking, but the electromagnetic lock actually has three working states of locking, unlocking and unlocking, so that the safety reliability of the existing electromagnetic lock is not high.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides an electromagnetic lock for a half-height safety door of rail transit. The device has the advantages of simple structure, low requirement on manufacturing and assembling precision, high reliability and good stability.
In order to achieve the above object, the technical solution of the present invention is realized in two ways as follows:
The electromagnetic lock for the half-height safety door of the rail transit is structurally characterized by comprising a rectangular electromagnetic lock frame formed by fixedly connecting a lower cover plate, an upper cover plate, a left cover plate and a right cover plate. The electromagnet is fixed on the right side of the electromagnetic lock frame through the electromagnet bracket. The upper part in the electromagnetic lock frame is fixedly connected with a front lock shaft sleeve, a limit switch bracket and a rear lock shaft sleeve in sequence from left to right, a lock shaft is horizontally arranged in through holes in the middle parts of the front lock shaft sleeve and the rear lock shaft sleeve, and one end of the lock shaft extends out of the electromagnetic lock frame and is fixedly connected with a lock tongue. The middle section of the lock shaft is connected with a limit switch iron, and four corners of the level of the limit switch iron are respectively provided with symmetrical inclined plane structures. Four contact sensors are arranged on the limit switch support, and the positions of the four contact sensors are respectively matched with four inclined plane structures on the limit switch impact iron. The lower end of an electromagnet shaft vertically arranged on the electromagnet is connected with the lock shaft in a linkage way through a lower rocker arm, a connecting rod and an upper rocker arm.
In the electromagnetic lock for the half-height safety door of the rail transit, the lower rocker arm is L-shaped, one end of the lower rocker arm is provided with a long round hole and is hinged with the lower end of the electromagnet shaft through an iron pin, the middle of the lower rocker arm is provided with a round hole and is hinged on the lower cover plate through a pin shaft, and the other end of the lower rocker arm is provided with a round hole and is connected with the connecting rod.
In the electromagnetic lock for the half-height safety door of the rail transit, the upper rocker arm is L-shaped, one end of the upper rocker arm is provided with a round hole which is connected with the connecting rod, the middle part of the upper rocker arm is provided with a round hole which is hinged with the bracket fixed on the lower cover plate through the rotating shaft, and the other end of the upper rocker arm is provided with a long round hole which moves in a long hole in the middle part of the lock shaft through the shaft pin.
In the electromagnetic lock for the rail transit half-height safety door, the contact sensor adopts a contact sensor with a roller structure.
The electromagnetic lock for the half-height safety door of the rail transit is structurally characterized by comprising a rectangular electromagnetic lock frame formed by fixedly connecting a lower cover plate, an upper cover plate, a left cover plate and a right cover plate. The electromagnet is fixed on the right side of the electromagnetic lock frame through the electromagnet bracket. The electromagnetic lock frame is internally and fixedly connected with a front lock shaft sleeve, a limit switch bracket and a rear lock shaft sleeve from left to right in sequence. The through holes in the middle parts of the front lock shaft sleeve and the rear lock shaft sleeve are horizontally provided with lock shafts, and one ends of the lock shafts extend out of the electromagnetic lock frame and are fixedly connected with lock bolts. The middle section of the lock shaft is connected with a limit switch bump iron, one side of the limit switch bump iron extends out of a shading sheet, two non-contact sensors are respectively arranged on the limit switch support from left to right, and the positions of the two non-contact sensors are respectively matched with the left-right moving position of the shading sheet on the limit switch bump iron. The lower end of an electromagnet shaft vertically arranged on the electromagnet is connected with the lock shaft in a linkage way through a lower rocker arm, a connecting rod and an upper rocker arm.
In the electromagnetic lock for the half-height safety door of the rail transit, the lower rocker arm is L-shaped, one end of the lower rocker arm is provided with a long round hole and is hinged with the lower end of the electromagnet shaft through an iron pin, the middle of the lower rocker arm is provided with a round hole and is hinged on the lower cover plate through a pin shaft (5), and the other end of the lower rocker arm is provided with a round hole and is connected with the connecting rod.
In the electromagnetic lock for the half-height safety door of the rail transit, the upper rocker arm is L-shaped, one end of the upper rocker arm is provided with a round hole which is connected with the connecting rod, the middle part of the upper rocker arm is provided with a round hole which is hinged with the bracket fixed on the lower cover plate through the rotating shaft, and the other end of the upper rocker arm is provided with a long round hole which moves in a long hole in the middle part of the lock shaft through the shaft pin.
In the electromagnetic lock for the track traffic half-height safety door, the non-contact sensor adopts a photoelectric non-contact sensor.
Compared with the prior art, the invention has the advantages that:
1) The limit switch of the invention can adopt a photoelectric non-contact sensor and a contact sensor with a roller structure, and the two structures are universal.
2) The electromagnetic lock is universal in left and right sliding doors, structural adjustment is not needed, and universality is enhanced.
3) After the electromagnetic lock is installed, the electromagnetic lock is locked in a non-contact mode, the lock tongue and the lock catch installed on the sliding door are free from friction and collision, and once the structure is debugged, the problems of running errors, fatigue fracture of the lock tongue and the like cannot occur due to abrasion.
4) Because the invention is electrified only in a short time when the sliding door is opened, the heating of the electromagnet is effectively controlled, the service life of the electromagnet is prolonged, and the energy is saved.
5) According to the invention, the vertical movement of the outlet shaft direction of the electromagnetic lock is changed into the transverse movement, so that the axial resistance of the axial direction of the electromagnetic lock is minimized, the service life and stability of the electromagnetic lock are improved, the length dimension of the electromagnetic lock is reduced, and the installation of the electromagnetic lock is not limited by the thickness of the installation body.
6) The parts with the structure of the invention have simple structure and low technical requirements on production equipment and production and assembly workers.
7) In one configuration of the invention four touch sensors are used, two of which are used to detect the locked position, one for the safety loop and the other for feeding back information to the DCU, and two other touch sensors used to detect the unlocked position can both feed back information to the DCU, and the four touch sensors can also detect unlocked and unlocked conditions. Therefore, the structure of the invention can truly reflect three working states of the electromagnetic lock, and has higher safety and reliability.
The invention is further described below with reference to the drawings and the detailed description.
Drawings
FIG. 1 is a schematic view of a construction of the present invention in an embodiment;
FIG. 2 is a schematic view in the A-A direction of FIG. 1;
FIG. 3 is a schematic view of another construction of the present invention in an embodiment;
Fig. 4 is a schematic view in the B-B direction of fig. 3.
Detailed Description
Referring to fig. 1 and 2, the electromagnetic lock for the half-height safety door of the rail transit of the structure of the present invention comprises a rectangular electromagnetic lock frame formed by fixedly connecting a lower cover plate 7, an upper cover plate 15, a left cover plate 11 and a right cover plate 20. The electromagnet 1 is fixed on the right side of the electromagnetic lock frame through the electromagnet bracket 2. The front lock shaft sleeve 14, the limit switch bracket 18 and the rear lock shaft sleeve 19 are fixedly connected from left to right in sequence at the inner upper part of the electromagnetic lock frame. The through holes in the middle parts of the front lock shaft sleeve 14 and the rear lock shaft sleeve 19 are horizontally provided with lock shafts 13, and one ends of the lock shafts 13 extend out of the electromagnetic lock frame and are fixedly connected with the lock bolts 12. The middle section of the lock shaft 13 is connected with a limit switch striker 17, and four corners of the horizontal plane of the limit switch striker 17 are respectively provided with symmetrical inclined plane structures. The limit switch bracket 18 is provided with four contact sensors 16 with roller structures, and the positions of the four contact sensors 16 are respectively matched with four inclined surface structures on the limit switch striker 17. The lower end of an electromagnet shaft vertically arranged on the electromagnet 1 is connected with a lock shaft 13 in a linkage way through a lower rocker arm 4, a connecting rod 6 and an upper rocker arm 9. The lower rocker arm 4 is L-shaped, one end of the lower rocker arm is provided with a long round hole which is hinged with the lower end of the electromagnet shaft through an iron pin 3, the middle of the lower rocker arm is provided with a round hole which is hinged on the lower cover plate 7 through a pin shaft 5, and the other end of the lower rocker arm is provided with a round hole which is connected with the connecting rod 6. The upper rocker arm 9 is L-shaped, one end of the upper rocker arm is provided with a round hole which is connected with the connecting rod 6, the middle part of the upper rocker arm is provided with a round hole which is hinged with the bracket 8 fixed on the lower cover plate 7 through the rotating shaft 10, and the other end of the upper rocker arm is provided with a long round hole which moves in a long hole in the middle part of the lock shaft 13 through the shaft pin.
Referring to fig. 3 and 4, an electromagnetic lock employing an optoelectronic non-contact sensor 22 is another configuration of the present invention.
According to the structure of the electromagnetic lock, the lower rocker arm 4 and the upper rocker arm 9 are connected together through the connecting rod 6 in a switching mode to form a kinematic pair, and locking and unlocking actions of the electromagnetic lock are achieved. In order to prevent contact wear of the lower rocker arm 4 and the electromagnet 1, a sleeve may be provided at the connection contact. Once the shaft sleeve is worn and replaced, the cost is low.
The limit switch in the electromagnetic lock of the invention is provided with a circular through hole at the center of the top of the limit switch striker 17, a groove is arranged at the transverse middle part, inclined planes at four corners on the plane are used for triggering detection with the positions of four contact sensors 16, the transverse groove is matched with the lock shaft 13, the transverse groove is fixed with the lock shaft 13 through the circular through hole at the top, and the transverse groove and the lock shaft 13 move in a channel formed by the front lock shaft sleeve 14 and the rear lock shaft sleeve 19 together.
The motion principle of the electromagnetic lock in the invention is as follows:
When unlocking is carried out, firstly, the electromagnet 1 arranged on the sliding door instantaneously acts, the lower rocker arm 4 is pulled by the electromagnet 1 shaft, the rocker arm 4 rotates, and the upper rocker arm 9 is driven to rotate by the connecting rod 6. The upper rocker arm 9 stirs the lock shaft 13 to axially move transversely and retract into the front lock shaft sleeve 14 to drive the lock tongue 12 to retract, thus unlocking is completed. At this time, the motor is started and the sliding door is opened. When the lock is closed, the electromagnet 1 is powered off, the shaft of the electromagnet 1 is sprung open by the compression spring of the electromagnet 1, the system acts, and the lock tongue 12 extends out, so that the lock function is realized.
The contact sensor 16 of four roller structures in the electromagnetic lock of the invention is used for detecting the locking position of the lock shaft 13, and the other two are used for detecting the unlocking position of the lock shaft 13. The lock shaft 13 passes through the limit switch striker 17, the limit switch striker 17 is fixed on the lock shaft 13 by using a pin shaft with the diameter of 3 mm, and the lock shaft 13 and the limit switch striker 17 synchronously act. The width of the limit switch striker 17 is matched with the rocker arm parameters of the contact sensor 16, so that three working conditions exist in the process of locking and unlocking the electromagnetic lock of the limit switch striker 17. The limit switch striker 17 is contacted with a rocker arm and a roller of the contact sensor 16 for detecting the locking state; in the unlocking process, the limit switch striker 17 is not contacted with the contact sensor 16 for detecting the locking state and the contact sensor 16 for detecting the unlocking state; after unlocking, the limit switch striker 17 is in contact with the contact sensor 16 for detecting the unlocking position. Likewise, after the electromagnetic lock coil is powered off, the three working conditions are also existed in the locking process, and the sequence is opposite.
Claims (8)
1. The electromagnetic lock for the half-height safety door of the rail transit is characterized by comprising a rectangular electromagnetic lock frame formed by fixedly connecting a lower cover plate (7), an upper cover plate (15), a left cover plate (11) and a right cover plate (20), wherein an electromagnet (1) is fixed on the right side of the electromagnetic lock frame through an electromagnet bracket (2), a front lock shaft sleeve (14), a limit switch bracket (18) and a rear lock shaft sleeve (19) are sequentially and fixedly connected above the inside of the electromagnetic lock frame from left to right, a lock shaft (13) is horizontally arranged in through holes in the middle parts of the front lock shaft sleeve (14) and the rear lock shaft sleeve (19), one end of the lock shaft (13) extends out of the electromagnetic lock frame and is fixedly connected with a lock tongue (12), the middle section of the lock shaft (13) is connected with a limit switch striker (17), four corners of a horizontal plane of the limit switch striker (17) are respectively in symmetrical inclined structures, four contact sensors (16) are arranged on the limit switch bracket (18), and the positions of the four contact sensors (16) are respectively matched with the four inclined structures on the limit switch striker (17), and the contact sensors (17) are used for detecting the contact state of the limit switch striker (17) and the contact state sensor (16); in the unlocking process, the limit switch striker (17) is not contacted with the contact sensor (16) for detecting the locking state and the contact sensor (16) for detecting the unlocking state; after unlocking, the limit switch striker (17) is in contact with the contact sensor (16) for detecting the unlocking position, so that the three working states of a locking state, an unlocking state and unlocking states can be detected, and the lower end of an electromagnet shaft vertically arranged on the electromagnet (1) is in linkage connection with the lock shaft (13) through the lower rocker arm (4), the connecting rod (6) and the upper rocker arm (9) in sequence.
2. The electromagnetic lock for the half-height safety door of the rail transit as claimed in claim 1, wherein the lower rocker arm (4) is L-shaped, one end of the lower rocker arm is provided with a long round hole which is hinged with the lower end of the electromagnet shaft through an iron pin (3), the middle part of the lower rocker arm is provided with a round hole which is hinged on the lower cover plate (7) through a pin shaft (5), and the other end of the lower rocker arm is provided with a round hole which is connected with the connecting rod (6).
3. The electromagnetic lock for a half-height safety door of rail transit as claimed in claim 1 or 2, wherein the upper rocker arm (9) is L-shaped, one end of which is provided with a circular hole connected with the connecting rod (6), the middle of which is provided with a circular hole hinged with the bracket (8) fixed on the lower cover plate (7) through the rotating shaft (10), and the other end of which is provided with a long circular hole which moves in a long hole in the middle of the lock shaft (13) through the shaft pin.
4. An electromagnetic lock for a half-height safety door for rail transit as claimed in claim 3, wherein the contact sensor (16) is a contact sensor of a roller structure.
5. The electromagnetic lock for the track traffic half-height safety door is characterized by comprising a rectangular electromagnetic lock frame formed by fixedly connecting a lower cover plate (7), an upper cover plate (15), a left cover plate (11) and a right cover plate (20), wherein an electromagnet (1) is fixed on the right side of the electromagnetic lock frame through an electromagnet bracket (2), a front lock shaft sleeve (14), a limit switch bracket (18) and a rear lock shaft sleeve (19) are sequentially and fixedly connected from left to right in the upper part of the electromagnetic lock frame, a lock shaft (13) is horizontally arranged in a through hole in the middle of the front lock shaft sleeve (14) and the rear lock shaft sleeve (19), one end of the lock shaft (13) extends out of the electromagnetic lock frame and is fixedly connected with a lock tongue (12), one middle section of the lock shaft (13) is connected with a limit switch striker (17), one side of the limit switch striker (17) extends out of a shading sheet (21), two non-contact sensors (22) are respectively arranged on the limit switch bracket (18) from left to right, the positions of the two non-contact sensors (22) are respectively matched with the position of the limit switch striker (21) on the left and the right side of the shading sheet, and the position of the electromagnet can be in a state of being matched with the electromagnetic lock shaft (17) in a locking state and the unlocking state of the electromagnetic lock shaft (9) and the electromagnetic lock is in a state of being in turn, and the electromagnetic lock is in a state of being in which the unlocking state of the electromagnetic lock is in the three-phase.
6. The electromagnetic lock for the half-height safety door of the rail transit as claimed in claim 5, wherein the lower rocker arm (4) is L-shaped, one end of the lower rocker arm is provided with a long round hole which is hinged with the lower end of the electromagnet shaft through an iron pin (3), the middle part of the lower rocker arm is provided with a round hole which is hinged on the lower cover plate (7) through a pin shaft (5), and the other end of the lower rocker arm is provided with a round hole which is connected with the connecting rod (6).
7. The electromagnetic lock for a half-height safety door of rail transit as claimed in claim 5 or 6, wherein the upper rocker arm (9) is L-shaped, one end of which is provided with a circular hole connected with the connecting rod (6), the middle of which is provided with a circular hole hinged with the bracket (8) fixed on the lower cover plate (7) through the rotating shaft (10), and the other end of which is provided with a long circular hole which moves in a long hole in the middle of the lock shaft (13) through the shaft pin.
8. The electromagnetic lock for a rail transit half-height safety door as claimed in claim 7, wherein the non-contact sensor (22) is a photoelectric non-contact sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710597963.8A CN109281544B (en) | 2017-07-21 | 2017-07-21 | Electromagnetic lock for track traffic half-height safety door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710597963.8A CN109281544B (en) | 2017-07-21 | 2017-07-21 | Electromagnetic lock for track traffic half-height safety door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109281544A CN109281544A (en) | 2019-01-29 |
| CN109281544B true CN109281544B (en) | 2024-06-25 |
Family
ID=65185057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710597963.8A Active CN109281544B (en) | 2017-07-21 | 2017-07-21 | Electromagnetic lock for track traffic half-height safety door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109281544B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110905293B (en) * | 2019-12-20 | 2025-01-14 | 今创集团股份有限公司 | A mechanically maintained electromagnetic lock for a safety door |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852399A (en) * | 2012-08-31 | 2013-01-02 | 陈强 | Electronic control mechanical lock and safety gate with same |
| CN104929437A (en) * | 2014-03-19 | 2015-09-23 | 迪吉洛克亚洲有限公司 | Electronic deadbolt lock |
| CN207033110U (en) * | 2017-07-21 | 2018-02-23 | 同方泰德国际科技(北京)有限公司 | Electromagnetic lock for rail transportation half-height safety door |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201883805U (en) * | 2010-11-22 | 2011-06-29 | 北京天乐泰力科技发展有限公司 | Electronic mechanical lock for rail transit half-height safety door |
| CN203547279U (en) * | 2014-01-06 | 2014-04-16 | 重庆众恒电器有限公司 | Electromagnetic lock for high-voltage switch gear |
-
2017
- 2017-07-21 CN CN201710597963.8A patent/CN109281544B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852399A (en) * | 2012-08-31 | 2013-01-02 | 陈强 | Electronic control mechanical lock and safety gate with same |
| CN104929437A (en) * | 2014-03-19 | 2015-09-23 | 迪吉洛克亚洲有限公司 | Electronic deadbolt lock |
| CN207033110U (en) * | 2017-07-21 | 2018-02-23 | 同方泰德国际科技(北京)有限公司 | Electromagnetic lock for rail transportation half-height safety door |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109281544A (en) | 2019-01-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109665429B (en) | Car door layer door system based on safety loop detection | |
| JP5570598B2 (en) | Device for entraining axle doors by elevator car doors | |
| AU2010229559B2 (en) | Electric door-locking apparatus, and electric door comprising same | |
| CN104196372B (en) | Rail transit platform screen door lock and rail transit platform screen door | |
| US8607937B2 (en) | Elevator door system comprising a car door locking mechanism | |
| JP2019510148A (en) | Double sliding sliding plug door system | |
| CN106081820B (en) | Elevator car door locking device and elevator | |
| JP2019502848A (en) | Screw drive control system | |
| CN106013991B (en) | A kind of electric locking device for overall height gate | |
| CN103420247B (en) | About the safety device of accidental movement of elevator cage | |
| CN109281544B (en) | Electromagnetic lock for track traffic half-height safety door | |
| CN103395667A (en) | Safety protection mechanism for accidental moving of elevator car | |
| CN107399663B (en) | Hand-operated door lock | |
| CN203558690U (en) | A car door lock in an elevator door lock device | |
| CN107514187B (en) | An electric locking device for subway screen doors | |
| CN105035922B (en) | Car door lock door vane device for elevator | |
| CN207033110U (en) | Electromagnetic lock for rail transportation half-height safety door | |
| CN106869624B (en) | Elevator prevents taking off sedan-chair lock door sword | |
| RU2553539C1 (en) | Control device of position of door wing of transport vehicle | |
| CN214944081U (en) | Multi-point locking mechanism of door system | |
| CN210260758U (en) | Double-connecting-rod integrated light curtain with recovery device | |
| CN212925631U (en) | Vertical locking mechanism for milling device under multiple working conditions and milling device | |
| CN203624755U (en) | Linkage device for elevator safety mechanism | |
| KR200426905Y1 (en) | Screen door opening | |
| CN107720506B (en) | Asynchronous door knife device of integral type sedan-chair lock |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |