CN110259273A - A kind of waterproof electromagnetic lock - Google Patents

A kind of waterproof electromagnetic lock Download PDF

Info

Publication number
CN110259273A
CN110259273A CN201910547818.8A CN201910547818A CN110259273A CN 110259273 A CN110259273 A CN 110259273A CN 201910547818 A CN201910547818 A CN 201910547818A CN 110259273 A CN110259273 A CN 110259273A
Authority
CN
China
Prior art keywords
front cover
sealing ring
shell
iron core
core
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910547818.8A
Other languages
Chinese (zh)
Inventor
徐特
张喜
马乾
李定国
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.)
Chongqing Sichuan Instruments Suda Mechanical and Electrical Co Ltd
Original Assignee
Chongqing Sichuan Instruments Suda Mechanical and Electrical 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 Chongqing Sichuan Instruments Suda Mechanical and Electrical Co Ltd filed Critical Chongqing Sichuan Instruments Suda Mechanical and Electrical Co Ltd
Priority to CN201910547818.8A priority Critical patent/CN110259273A/en
Publication of CN110259273A publication Critical patent/CN110259273A/en
Pending legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00Accessories in connection with locks
    • E05B17/002Weather or dirt protection
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00Accessories in connection with locks
    • E05B17/0041Damping means
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B47/0002Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets
    • E05B47/0003Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets having a movable core
    • E05B47/0004Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets having a movable core said core being linearly movable
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/02Movement of the bolt by electromagnetic means; Adaptation of locks, latches, or parts thereof, for movement of the bolt by electromagnetic means
    • E05B47/026Movement of the bolt by electromagnetic means; Adaptation of locks, latches, or parts thereof, for movement of the bolt by electromagnetic means the bolt moving rectilinearly

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Sealing Devices (AREA)

Abstract

The invention discloses a kind of waterproof electromagnetic locks, including shell and the front cover and rear cover that are separately mounted to shell rear and front end, it is equipped in shell through front cover and the dynamic iron core being only axially movable and the electromagnetic assembly with dynamic iron core cooperation, be provided between dynamic iron core and front cover can axial stretching sealing shroud, first sealing ring is installed between front cover and shell, second sealing ring is installed between rear cover and shell, sealing shroud seals up the movable gap between dynamic iron core and front cover, even if dynamic iron core axial movement nor affects on sealing effect, first sealing ring and the second sealing ring seal up the gap at shell both ends respectively, water proof and dust proof effect is good, extend the service life of this waterproof electromagnetic lock.

Description

A kind of waterproof electromagnetic lock
Technical field
The present invention relates to technical field of rail traffic and electromagnetic lock technical fields, use more particularly to a kind of track shield door Waterproof electromagnetic lock.
Background technique
Screen door in rail transit system is the subjects such as a set electron, communication, machinery, building and aesthetics in the high-tech of one Skill product is the indispensable facility for modernizing the engineerings such as subway, light rail and bus rapid transit, it is arranged along platform edge, by train It is isolated with platform waiting room.Existing screen door in rail transit is generally sealed by solenoid valve/lock control, using extensive, but due to Screen door in rail transit is an exposure in air, so influencing vulnerable to various factors such as moisture, dusts, high failure rate uses the longevity It orders short.
Therefore those skilled in the art are dedicated to developing a kind of waterproof electromagnetic lock that water proof and dust proof effect is good.
Summary of the invention
In view of the above drawbacks of the prior art, technical problem to be solved by the invention is to provide a kind of water proof and dust proof effects The good waterproof electromagnetic lock of fruit.
To achieve the above object, the present invention provides a kind of waterproof electromagnetic lock, including shell and it is separately mounted to the shell The front cover and rear cover of body rear and front end, be equipped in the shell through the front cover and the dynamic iron core that is only axially movable and With the dynamic iron core cooperation electromagnetic assembly, be provided between the dynamic iron core and the front cover can axial stretching sealing shroud, First sealing ring is installed between the front cover and the shell, the second sealing is installed between the rear cover and the shell Circle.
The sealing shroud is made of dynamic core sealing ring, the elastic corrugated set in middle part and front cover sealing ring, the dynamic core sealing ring It is tightly connected with the side wall of the dynamic iron core, the front cover sealing ring and the front cover are tightly connected, and the middle part is elastic corrugated The front end of set is connect with the rear end of the dynamic core sealing ring, and rear end is connect with the rear end of the front cover sealing ring.
The front end of the elastic corrugated set in middle part is also connected with the rear end of a taper buffer part, before the taper buffer part End is connect with the rear end of the dynamic core sealing ring.
The elastic corrugated set in middle part is made of the first connecting portion and second connecting portion radially outward turned down, and described first The front end of interconnecting piece is connect with the rear end of the taper buffer part, and rear end is connect with the front end of the second connecting portion;Described The rear end of two interconnecting pieces is connect with the rear end of the front cover sealing ring.
The dynamic core sealing ring is provided with front and back arranged in parallel at least two, two adjacent dynamic core sealing rings it Between be provided with the connection of one first clamping ring, the inner sidewall of first clamping ring is tightly attached in the sidewall surfaces of the dynamic iron core.
The connection of the second clamping ring is provided between the elastic corrugated set of the front cover sealing ring and the middle part, described second connects The inner sidewall of adapter ring is tightly attached on the surface of the front cover.
The front cover is provided with axial raised guide ring around the lock core, and the bottom of the guide ring is provided with accommodating The inner sidewall of the seal groove of the front cover sealing ring, second clamping ring is tightly attached on the outer surface of guide ring.
The electromagnetic assembly includes being provided with one on the inside of the lock core component being mounted in the dynamic iron core, the front cover Axial connecting hole, the connecting hole interference fit are equipped with an axial rotation stop guide post, and the lock core component is provided with set Connect the sliding block in the rotation stop guide post.
The first resilient cushion is also socketed in the dynamic iron core, the front end of the lock core component is arranged in first resilient cushion Between face and the rear end face of the front cover.
The electromagnetic assembly further includes being axially mounted to the intracorporal magnetic conductive cover set of the shell, the front end diameter of the lock core component There is one stroke stop collar to being extended, the front end of the magnetic conductive cover set is fixedly installed with positioned at stroke limit ring rear Second resilient cushion.
The beneficial effects of the present invention are: waterproof electromagnetic lock of the invention, including shell and it is separately mounted to two before and after shell The front cover and rear cover at end, are equipped in shell through front cover and the dynamic iron core being only axially movable and the electricity with dynamic iron core cooperation Magnetic assembly, be provided between dynamic iron core and front cover can axial stretching sealing shroud, the first sealing is installed between front cover and shell Circle, is equipped with the second sealing ring between rear cover and shell, sealing shroud seals up the movable gap between dynamic iron core and front cover, even if Dynamic iron core axial movement nor affects on sealing effect, and the first sealing ring and the second sealing ring seal up the seam at shell both ends respectively Gap, water proof and dust proof effect is good, extends the service life of this waterproof electromagnetic lock.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention;
Fig. 2 is structure sectional view of the invention;
Fig. 3 is the structural schematic diagram of sealing shroud;
Fig. 4 is the structure sectional view of sealing shroud.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples, it should be noted that, in the description of the present invention, The orientation or positional relationship of the instructions such as term " on ", "lower", "left", "right", "inner", "outside" be orientation based on the figure or Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must There must be specific orientation, construct and operate in a particular manner, therefore be not considered as limiting the invention.Term " the One ", " second ", " third " etc. are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
As shown in Figures 1 to 4, a kind of waterproof electromagnetic lock, including shell 1 and before being separately mounted to 1 rear and front end of shell Lid 2 and rear cover 3, are equipped in shell 1 through front cover 2 and the dynamic iron core 4 being only axially movable and the electricity cooperated with dynamic iron core 4 Magnetic assembly, be provided between dynamic iron core 4 and front cover 2 can axial stretching sealing shroud 5, be equipped with first between front cover 2 and shell 1 Sealing ring 6, is equipped with the second sealing ring 7 between rear cover 3 and shell 1, sealing shroud 5 seals up the work between dynamic iron core 4 and front cover 2 Dynamic gap, even if the axial movement of dynamic iron core 4 nor affects on sealing effect, the first sealing ring 6 and the second sealing ring 7 seal up respectively The gap at 1 both ends of shell, water proof and dust proof effect is good, extends the service life of this waterproof electromagnetic lock.
Sealing shroud 5 is made of dynamic core sealing ring 51, the elastic corrugated set 52 in middle part and front cover sealing ring 53, moves core sealing ring 51 Be tightly connected with the side wall of dynamic iron core 4, front cover sealing ring 53 and front cover 2 are tightly connected, the front end of the elastic corrugated set 52 in middle part with The rear end connection of dynamic core sealing ring 51, rear end is connect with the rear end of front cover sealing ring 53;The elastic corrugated set 52 in middle part from radial direction to The first connecting portion 521 and second connecting portion 522 of outer fold are constituted, front end and the taper buffer part 54 of first connecting portion 521 Rear end connection, rear end is connect with the front end of second connecting portion 522;Behind the rear end of second connecting portion 522 and front cover sealing ring 53 The sum of the length of end connection, first connecting portion 521 and second connecting portion 522 is greater than the shift motion of dynamic iron core 4, in dynamic iron core 4 When not extending, the angle between first connecting portion 521 and second connecting portion 522 is acute angle, can reserve enough elongations in this way Length, it is ensured that do not touch front cover sealing ring 53 and dynamic core sealing ring 51, can preferably maintain the state of sealing.
Further, the front end of the elastic corrugated set 52 in middle part is also connected with the rear end of a taper buffer part 54, taper buffering The front end in portion 54 is connect with the rear end of dynamic core sealing ring 51, and buffering when taper buffer part 54 is moved axially as dynamic iron core 4 is kept away Exempt from directly to pull the elastic corrugated set 52 in middle part generation fatigue under high-frequency effect.
In order to reinforce sealing effect, dynamic core sealing ring 51 is provided with arranged in parallel at least two in front and back, two adjacent The connection of one first clamping ring 55 is provided between dynamic core sealing ring 51, the inner sidewall of the first clamping ring 55 is tightly attached to dynamic iron core 4 In sidewall surfaces;The connection of the second clamping ring 56, the second connection are provided between the elastic corrugated set 52 of front cover sealing ring 53 and middle part The inner sidewall of circle 56 is tightly attached on the surface of front cover 2.
Further, front cover 2 is provided with axial raised guide ring 8 around lock core 4, and the bottom of guide ring 8 is provided with appearance The seal groove of front cover sealing ring 53 is set, the inner sidewall of the second clamping ring 56 is tightly attached on the outer surface of guide ring 8.
In conclusion by least two dynamic core sealing rings 51, the first clamping ring 55, the second clamping ring 56 and front cover sealing ring Gap is sealed between 53 pairs of dynamic iron cores 4 and front cover 2, and the elastic corrugated set 52 in middle part ensures to pull when dynamic iron core 4 is mobile Above-mentioned each sealing structure guarantees sealing effect.
In addition, the front-end surface of shell 1 is provided with the first mounting groove, rear end surface is provided with the second mounting groove, and first is close Seal 6 is mounted in the first mounting groove by shell 1 and the clamping of front cover 2, and the second sealing ring 7 is mounted on by shell 1 and the clamping of rear cover 3 In second mounting groove, the first sealing ring 6 and the second sealing ring 7 are sealed the inner space of shell 1, further strengthen waterproof Dust-proof effect.
In the present embodiment, in order to guarantee the real-time sealing effect of sealing shroud 5 and extend the service life of sealing shroud 5, institute Must assure that its activity axial as far as possible in activity, and it is avoided radially to shake, radial shake can laterally pull sealing shroud 5, It will lead to radial one end during pullling to be squeezed, the radial other end is pullled and leaks out gap, does not have thus anti- The dust-proof effect of water, and the radial sealing effect of sealing shroud 5 can be weakened after long-time use, so at this time must strict guarantee Dynamic iron core 4 is axially moveable in service life and cannot radially shake can not circumferentially rotate.
So further, electromagnetic assembly includes being arranged on the inside of the lock core component 9 being mounted in dynamic iron core 4, front cover 2 There is an axial connecting hole, connecting hole interference fit is equipped with an axial rotation stop guide post 10, and lock core component 9 is provided with socket Sliding block 30 in rotation stop guide post 10, lock core component 9 slide axially through sliding block 30 along rotation stop guide post 10, due to front cover 2 with It is good that the interference fit mounting means of rotation stop guide post 10 is fixedly connected with effect, fixation, it is ensured that lock core component 9 and dynamic iron core 4 It will not circumferentially rotate;The first oilless bearing 24 is additionally provided between dynamic iron core 4 and front cover 2, between dynamic iron core 4 and magnetic conduction pedestal 16 It is additionally provided with the second oilless bearing 25, rotation stop guide post 10, the first oilless bearing 24 and the second oilless bearing 25 ensure dynamic iron core 4 It is more straight smooth when moving axially, it is ensured that dynamic iron core 4 will not radially shake and will not circumferentially rotate.
The first resilient cushion 11 is also socketed in dynamic iron core 4, the front end face of lock core component 9 is arranged in before in the first resilient cushion 11 Between the rear end face of lid 2;Electromagnetic assembly further includes the magnetic conductive cover set 12 being axially mounted in shell 1, the front end diameter of lock core component 9 There is an one stroke stop collar 13 to being extended, the front end of magnetic conductive cover set 12 is fixedly installed with the positioned at 13 rear of stroke limit ring Two resilient cushions 14;First resilient cushion 11 and the second resilient cushion 14 absorb dynamic iron core 4 axially move to top or on earth when vibration, keep away Exempt from lock core component 9 directly to contact with front cover 2 or magnetic conductive cover set 12 and generate vibration.
In addition, dynamic iron core 4 is that it is rigid unitary relative to the existing maximum difference of electromagnetic lock on the market, tool There is the advantages of movement speed is fast, will not shake.
Electromagnetic assembly further includes the magnetic conduction pedestal 16 for being mounted on 1 inside rear end of shell, is equipped with axial direction on magnetic conduction pedestal 16 Sleeve 17, coil rack 18 and coil component 19, shell 1, magnetic conductive cover cover 12, coil component 19, coil rack 18, sleeve 17, lock core component 9 and dynamic iron core 4 are successively socketed from outside to inside, and lock core component 9 is provided with an elastic pin 15 and dynamic iron core 4 is solid Fixed connection, the rear end of dynamic iron core 4 axially penetrates through magnetic conduction pedestal 16 and extend into that rear cover 3 surrounds connects in electric cavity 20.
The leading inside of magnetic conduction pedestal 16 is provided with the lock core accommodation groove of axial accommodating 9 rear end of lock core component, lock core component 9 It is inside provided with the spring housing 21 around dynamic iron core 4, the middle part of dynamic iron core 4 is socketed with spring 22, and spring 22 is stretched in spring housing 21 Contracting activity, the middle part of dynamic iron core 4 are provided with the spring radially extended and contradict circle 23, and the clamped spring that is mounted on of spring 22 contradicts circle Between 23 and the bottom of lock core accommodation groove, rear cover 3 includes the sensor 29 for being equipped with and being electrically connected with the external world, and sensor is responsible for reception The signal for controlling the opening and closing of this electromagnetic lock, when energization, coil component 19 generates magnetic field and dynamic iron core 4 is pushed to stretch out, and magnetic field disappears after power-off It loses, dynamic iron core 4 retracts under the restoring force effect of spring, this is existing electromagnetic lock common technology, not reinflated narration.
Front cover 2 is provided with the first installation bolt 26, and the front end of shell 1 is provided with and the first installation bolt 26 matched first Threaded hole;Rear cover 3 is provided with the second installation bolt 27, and the rear end of shell 1 is provided with and the second installation bolt 27 matched second Threaded hole;Magnetic conduction pedestal 16 is provided with third installation bolt 28, and the rear end of shell 1 is provided with matched with third installation bolt 28 Third threaded hole, structure is simple, easy disassembly.
Excellent effect of the invention is: by least two dynamic core sealing rings 51, the first clamping ring 55, the second clamping ring 56 And front cover sealing ring 53 is sealed gap between dynamic iron core 4 and front cover 2, is adding the first sealing ring 6 and the second sealing ring 7 Guarantee the sealing effect of entire electromagnetic lock;Rotation stop guide post 10, the elastic corrugated set 52 in middle part, the first oilless bearing 24, the second nothing Oil bearing 25, the first resilient cushion 11 and the second resilient cushion 14 ensure radially shake and will not circumferentially turn when dynamic iron core 4 is mobile It moves and pulls above-mentioned each sealing structure, extend the service life of sealing shroud 5.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that those skilled in the art without It needs creative work according to the present invention can conceive and makes many modifications and variations.Therefore, all technologies in the art Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea Technical solution, all should be within the scope of protection determined by the claims.

Claims (10)

1. a kind of waterproof electromagnetic lock, including shell (1) and be separately mounted to the shell (1) rear and front end front cover (2) and after It covers (3), be equipped in the shell (1) through the front cover (2) and the dynamic iron core (4) that is only axially movable and moved with described The electromagnetic assembly of iron core (4) cooperation, it is characterized in that: being provided between the dynamic iron core (4) and the front cover (2) can axial stretching Sealing shroud (5), be equipped between the front cover (2) and the shell (1) the first sealing ring (6), the rear cover (3) with it is described Second sealing ring (7) are installed between shell (1).
2. waterproof electromagnetic lock as described in claim 1, it is characterized in that: the sealing shroud (5) You Dongxin sealing ring (51), middle part Elastic corrugated set (52) and front cover sealing ring (53) are constituted, and the dynamic core sealing ring (51) and the side wall of the dynamic iron core (4) are close Envelope connection, the front cover sealing ring (53) and the front cover (2) are tightly connected, the front end of the elastic corrugated set in middle part (52) with The rear end of the dynamic core sealing ring (51) connects, and rear end is connect with the rear end of the front cover sealing ring (53).
3. waterproof electromagnetic lock as claimed in claim 2, it is characterized in that: the front end of the elastic corrugated set in the middle part (52) is also connected with There are the rear end of a taper buffer part (54), the rear end company of the front end of the taper buffer part (54) and the dynamic core sealing ring (51) It connects.
4. waterproof electromagnetic lock as claimed in claim 3, it is characterized in that: the elastic corrugated set in the middle part (52) is by radially outward turning over The first connecting portion (521) and second connecting portion (522) of folding are constituted, the front end of the first connecting portion (521) and the taper The rear end of buffer part (54) connects, and rear end is connect with the front end of the second connecting portion (522);The second connecting portion (522) Rear end connect with the rear end of the front cover sealing ring (53).
5. waterproof electromagnetic lock as claimed in claim 2 or claim 3 is put down it is characterized in that: the dynamic core sealing ring (51) is provided with front and back At least two of row arrangement are provided with the connection of one first clamping ring (55), institute between two adjacent dynamic core sealing rings (51) The inner sidewall for stating the first clamping ring (55) is tightly attached in the sidewall surfaces of the dynamic iron core (4).
6. waterproof electromagnetic lock as claimed in claim 2 or claim 3, it is characterized in that: the front cover sealing ring (53) and the middle part bullet Property radiation fins (52) between be provided with the second clamping ring (56) connection, the inner sidewall of second clamping ring (56) is tightly attached to described On the surface of front cover (2).
7. waterproof electromagnetic lock as claimed in claim 6, it is characterized in that: the front cover (2) is provided with axis around the lock core (4) To the guide ring (8) of protrusion, the bottom of the guide ring (8) is provided with the seal groove for accommodating the front cover sealing ring (53), institute The inner sidewall for stating the second clamping ring (56) is tightly attached on the outer surface of guide ring (8).
8. waterproof electromagnetic lock as described in claim 1, it is characterized in that: the electromagnetic assembly includes surrounding to be mounted on the dynamic iron Lock core component (9) on core (4), front cover (2) inside are provided with an axial connecting hole, the connecting hole interference fit peace Equipped with an axial rotation stop guide post (10), the lock core component (9), which is provided with, to be socketed on the rotation stop guide post (10) Sliding block (30).
9. waterproof electromagnetic lock as claimed in claim 8, it is characterized in that: being also socketed with the first resilient cushion in the dynamic iron core (4) (11), first resilient cushion (11) setting the lock core component (9) front end face and the front cover (2) rear end face it Between.
10. waterproof electromagnetic lock as claimed in claim 8 or 9, it is characterized in that: the electromagnetic assembly further includes being axially mounted to institute The magnetic conductive cover set (12) in shell (1) is stated, the front end of the lock core component (9), which radially extends, is provided with one stroke stop collar (13), the front end of the magnetic conductive cover set (12) is fixedly installed with the second resilient cushion positioned at stroke limit ring (13) rear (14).
CN201910547818.8A 2019-06-24 2019-06-24 A kind of waterproof electromagnetic lock Pending CN110259273A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910547818.8A CN110259273A (en) 2019-06-24 2019-06-24 A kind of waterproof electromagnetic lock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910547818.8A CN110259273A (en) 2019-06-24 2019-06-24 A kind of waterproof electromagnetic lock

Publications (1)

Publication Number Publication Date
CN110259273A true CN110259273A (en) 2019-09-20

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Application Number Title Priority Date Filing Date
CN201910547818.8A Pending CN110259273A (en) 2019-06-24 2019-06-24 A kind of waterproof electromagnetic lock

Country Status (1)

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CN (1) CN110259273A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112709507A (en) * 2020-12-28 2021-04-27 江苏常友环保科技股份有限公司 Sealed lock for rail transit

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2371407Y (en) * 1999-03-09 2000-03-29 荣成市宇翔实业公司 Electromagnetic valve
EP2196605A1 (en) * 2008-12-15 2010-06-16 Adler S.A.S. Electromagnetic lock
CN202914753U (en) * 2012-11-14 2013-05-01 浙江鸿友压缩机制造有限公司 Reciprocating type shaft seal
CN203129749U (en) * 2012-11-30 2013-08-14 中国铁道科学研究院电子计算技术研究所 Rail transit platform safety gate electromagnetic lock
CN103419859A (en) * 2013-08-07 2013-12-04 李矢 Anti-theft remote control mechanical electromagnetic lock of electric vehicle accumulator
CN107700961A (en) * 2017-09-30 2018-02-16 成都尊华荣域科技有限公司 A kind of rail traffic station platform safety door locking device
CN210828659U (en) * 2019-06-24 2020-06-23 重庆川仪速达机电有限公司 Waterproof electromagnetic lock

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2371407Y (en) * 1999-03-09 2000-03-29 荣成市宇翔实业公司 Electromagnetic valve
EP2196605A1 (en) * 2008-12-15 2010-06-16 Adler S.A.S. Electromagnetic lock
CN202914753U (en) * 2012-11-14 2013-05-01 浙江鸿友压缩机制造有限公司 Reciprocating type shaft seal
CN203129749U (en) * 2012-11-30 2013-08-14 中国铁道科学研究院电子计算技术研究所 Rail transit platform safety gate electromagnetic lock
CN103419859A (en) * 2013-08-07 2013-12-04 李矢 Anti-theft remote control mechanical electromagnetic lock of electric vehicle accumulator
CN107700961A (en) * 2017-09-30 2018-02-16 成都尊华荣域科技有限公司 A kind of rail traffic station platform safety door locking device
CN210828659U (en) * 2019-06-24 2020-06-23 重庆川仪速达机电有限公司 Waterproof electromagnetic lock

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112709507A (en) * 2020-12-28 2021-04-27 江苏常友环保科技股份有限公司 Sealed lock for rail transit

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