CN111335751A

CN111335751A - Integrated electromagnetic lock for subway platform door

Info

Publication number: CN111335751A
Application number: CN202010051714.0A
Authority: CN
Inventors: 罗金辉; 蔡友贵; 沈泽韬
Original assignee: SG Biofuels Ltd
Current assignee: Tsinghua Tongfang Co Ltd; SG Biofuels Ltd
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2020-06-26

Abstract

An integrated electromagnetic lock for a subway platform door relates to the technical field of locks. The invention comprises a lock disc, a V-shaped water seal, a front fixed mounting plate, a rotary gasket, a bearing and a mechanism disc which are coaxially connected in sequence. And an electromagnet and an iron core driven by the electromagnet are arranged on one side below the front fixed mounting plate. The mechanism is structurally characterized in that a groove is formed in the bottom of the mechanism disc and is in sliding fit with a roller arranged on a roller lock hook below the groove to achieve locking. The roller lock hook is connected with the electromagnet through a connecting shaft, and the rotation of the roller lock hook drives the adapter plate below the roller lock hook to horizontally move and trigger the unlocking/locking arrival stroke detection switch to send a signal. The rotation of the mechanism disk triggers the closing in-place travel detection switch to send out signals, and a limit adjusting block is arranged above the mechanism disk. The front fixed mounting plate is connected with the rear cover plate through a bolt, and the unlocking/locking in-place stroke detection switch and the closing in-place stroke detection switch are sealed inside. The invention has the characteristics of small volume, low cost, good sealing effect, beautiful appearance and simple installation and maintenance.

Description

Integrated electromagnetic lock for subway platform door

Technical Field

The invention relates to the technical field of lock structures, in particular to an integrated electromagnetic lock for a subway platform door.

Background

The integrated electromagnetic lock for the subway platform door is an electric control lock for the subway platform door system, and along with the wide application of the platform door, the subway operation attaches more and more importance to the safety of passengers. Therefore, it is critical that the sliding doors serve as a passage for connecting the train to the platform and that they be reliably locked and unlocked. On the basis, whether the maintenance and replacement process of the electromagnetic lock is simple or not is also a concern gradually. At present, the platform door installation lock device in use generally has the defects of large volume, poor waterproof performance, higher cost, inconvenience in installation and maintenance and the like.

Disclosure of Invention

In view of the above-mentioned shortcomings in the prior art, the present invention provides an integrated electromagnetic lock for a subway platform door. The novel sealing device has the characteristics of small volume, low cost, good sealing effect, attractive appearance and simplicity in installation and maintenance.

In order to achieve the above object, the technical solution of the present invention is implemented as follows:

an integrated electromagnetic lock for a subway platform door comprises a lock disc, a V-shaped water seal, a front fixed mounting plate, a rotary gasket, a bearing and a mechanism disc which are sequentially and coaxially connected. And an electromagnet and an iron core driven by the electromagnet are arranged on one side below the front fixed mounting plate. The mechanism is structurally characterized in that a groove is formed in the bottom of the mechanism disc and is in sliding fit with a roller arranged on a roller lock hook below the groove to achieve locking. The roller lock hook is connected with the electromagnet through a connecting shaft, and the rotation of the roller lock hook drives the adapter plate below the roller lock hook to horizontally move and trigger the unlocking/locking arrival stroke detection switch to send a signal. The rotation of the mechanism disk triggers the closing in-place travel detection switch to send out signals, and a limit adjusting block is arranged above the mechanism disk. The front fixed mounting plate is connected with the rear cover plate through a bolt, and the unlocking/locking in-place stroke detection switch and the closing in-place stroke detection switch are sealed inside.

In the integrated electromagnetic lock, a groove is formed in one circle, attached to the rear cover plate, of the front fixed mounting plate, and a sealing strip is arranged in the groove.

In the integrated electromagnetic lock, the outer plane of one side of the rear cover plate is provided with a line pressing block, and the line pressing block fixes the unlocking/locking in-place stroke detection switch and a line protection sleeve on a connecting line of the off-position stroke detection switch.

In the integrated electromagnetic lock, a manual unlocking button is arranged at the bottom of a box body formed by the front fixed mounting plate and the rear cover plate, and manual triggering of the manual unlocking button sequentially causes linkage of a sliding sheet, a switching sheet and an unlocking/locking in-place stroke detection switch pushed in the sealing box.

In the integrated electromagnetic lock, the four corners of the rear cover plate are respectively provided with a fixing waist hole for installation.

Due to the adoption of the structure, compared with the prior art, the unlocking/locking in-place stroke detection switch and the locking in-place stroke detection switch are arranged in the lock body, so that the detection accuracy of the door body in-place closing is greatly improved, the anti-pinch function is more excellent, the step of independently adjusting and closing the in-place stroke detection switch after the electromagnetic lock is replaced in the prior art is eliminated, the locking mechanism is completely packaged in the lock body, the appearance is neat and attractive, and the installation and maintenance are simple. Meanwhile, the invention also has the characteristics of small volume, low cost and good sealing effect.

The invention is further described with reference to the following figures and detailed description.

Drawings

FIG. 1 is an external view of the present invention;

FIG. 2 is a view showing the installation relationship between the lock disk part and the mechanism disk part in the present invention;

FIG. 3 is a schematic view of the internal structure of the present invention;

fig. 4 is a side cross-sectional view of the finished product of the invention.

Detailed Description

Referring to fig. 1 to 4, the integrated electromagnetic lock for a subway platform door of the present invention comprises a lock disc 12, a V-shaped water seal 13, a front fixed mounting plate 14, a rotary washer 15, a bearing 16 and a mechanism disc 1 which are coaxially connected in sequence. An electromagnet 18 and an iron core 19 driven by the electromagnet are arranged on one side below the front fixed mounting plate 14. The bottom of the mechanism disc 1 is provided with a groove which is matched with the roller arranged on the roller lock hook 2 below the groove in a sliding manner to realize locking, the roller lock hook 2 is connected with the electromagnet 18 through the connecting shaft 5, and the rotation of the roller lock hook 2 drives the adapter sheet 6 below the roller lock hook to move horizontally and trigger the unlocking/locking in-place stroke detection switch 7 to send out a signal. The rotation of the mechanism disc 1 triggers the closing in-place travel detection switch 8 to send out signals, and a limit adjusting block 11 is arranged above the mechanism disc 1. The front fixed mounting plate 14 is connected with the rear cover plate 20 through bolts, and seals the unlocking/locking in-place stroke detection switch 7 and the closing in-place stroke detection switch 8. The circle on the front fixed mounting plate 14 and attached to the rear cover plate 20 is provided with a groove, and the sealing strip 9 is arranged in the groove. The outer plane of one side of the rear cover plate 20 is provided with a line pressing block 21, the line pressing block 21 fixes the unlocking/locking in-place travel detection switch 7 and a line protecting sleeve 22 on a connecting line of the closing in-place travel detection switch 8, and four corners of the rear cover plate 20 are respectively provided with fixing waist holes 23 for installation. The manual unlocking button 24 is arranged at the bottom of a box body formed by the front fixed mounting plate 14 and the rear cover plate 20, and the manual unlocking button 24 is triggered manually to sequentially cause the linkage of the sliding piece 25, the adapter piece 6 and the unlocking/locking in-place stroke detection switch 7 pushed in the sealing box.

Referring to fig. 2, when the invention is assembled, the lock disc 12 penetrates through the V-shaped water seal 13, then penetrates through the front fixed mounting plate 14, then penetrates through the rotary washer 15, penetrates through the bearing 16 which is pressed into the front fixed mounting plate 14 in advance, and then is fixedly connected with the mechanism disc 1 by adopting the fastening bolt 17. The structure can effectively ensure the stability and the sealing performance of the lock disc 12 in the rotating process, and the assembly is simple.

Referring to fig. 3, when the integrated electromagnetic lock of the present invention is in operation, assuming that the closing motion of the sliding door is the starting point of the cycle, the door hanging wheel lock cylinder drives the lock disk 12 to rotate to the position shown in fig. 1, and the positions of the internal components are shown in fig. 3. The roller locking hook 2 slides into a groove at the bottom of the mechanism disc 1 under the action of the spring 3 to complete the locking of the door body. In the process, the mechanism disc 1 in fig. 3 rotates clockwise, and gradually contacts the roller on the closing in-place stroke detection switch 8 in the closing process until the door body is completely closed, and the closing in-place stroke detection switch 8 is triggered to give a closing in-place signal. Meanwhile, an unlocking/locking in-place stroke detection switch 7 is associated with the changeover piece 6. When the door body is closed, the roller locking hook 2 drives the adapter plate 6 to reach a corresponding position, so that the unlocking/locking in-place stroke detection switch 8 is released, and a locking in-place signal is given, and the process realizes the function of mechanically maintaining the locking state and reduces the power consumption of the electromagnetic lock.

When the sliding door is unlocked in use, the electromagnet 18 is electrified, and the iron core 19 generates closing action, so that the roller lock hook 2 is driven to rotate, and the unlocking purpose is achieved. The unlocking/locking in-place travel detection switch 7 is triggered at this time to give an 'unlocking in-place' signal. Further, the motor rotates, the sliding door moves, and the in-place travel detection switch 8 is closed and released.

When the manual unlocking button 24 is manually touched, the sliding piece 25 is pushed to push the adapter sheet 6, and the adapter sheet 6 drives the roller lock hook 2 to be separated from the groove at the bottom of the mechanism disc 1, so that the unlocking condition is achieved. Meanwhile, the switching piece 6 pushes the unlocking/locking in-place stroke detection switch 7, and when the unlocking condition is met, the unlocking/locking in-place stroke detection switch 7 is triggered to give an unlocking in-place signal. After the sliding door is opened, the manual unlocking key 24 is manually put down, and the sliding piece 25 is pushed to reset under the action of the spring.

In the integrated electromagnetic lock, the limiting adjusting block 11 is used for limiting the final position of the adjusting mechanism disc 1 when the door is closed in place, so that the phenomenon that the roller locking hook 2 cannot normally enter the groove in the mechanism disc 1 due to machining precision errors is avoided, meanwhile, the swinging amount of the locked lock disc 12 is reduced by adjusting the limiting adjusting block 11, so that the anti-pinch function is more excellent, and under the condition of acceptance in the same industry, the anti-pinch function of the electromagnetic lock can achieve the purpose of detecting a steel plate with the smallest obstacle of 1mm (thickness) and × 40mm (width).

Referring to fig. 4, a groove is designed around the front fixed mounting plate 14, the groove is provided with the sealing strip 9, and the rear cover plate 20 is connected with the front fixed mounting plate 14 through a bolt, so that the sealing strip 9 is compressed, and a sealing effect is achieved. Meanwhile, after the rear cover plate 20 is fastened with the front fixed mounting plate 14, the left end of the limiting shaft 10 penetrating through the axis of the mechanism disc 1 is propped against the inner side surface of the rear cover plate 20, so that the lock disc 12 and the bearing are prevented from moving due to unexpected factors. And other fasteners are treated in the same way, so that corresponding displacement cannot be generated even if the fasteners are loosened, and smooth operation of the electromagnetic lock is ensured.

In the invention, the line pressing block 21 is pressed into the groove with the corresponding shape of the rear cover plate 20 and then pressed on the corresponding fluorine rubber line protection sleeve 22, and the design ensures that the unlocking/locking in-place stroke detection switch 7 and the closing in-place forming detection switch 8 are orderly in line outgoing and obtain excellent protection.

The lock structure of the electromagnetic lock is completely encapsulated in the lock body, the appearance is neat and beautiful, the four corners of the lock body are also provided with the fixing waist holes, the electromagnetic lock can be directly hung on the reserved bolts at the corresponding door frame beam position, the adjustment is slightly carried out, and the nuts are screwed. The switch 8 for detecting the closing in-place stroke is arranged in the lock body, and is adjusted before leaving a factory, and the replacement operation is convenient and quick.

In practical application, the integrated electromagnetic lock for the subway platform door has the advantages that the overall height is 130mm, the width is 184mm, the highest point of the effective thickness is 48mm, and the volume in the industry is smaller.

Claims

1. An integrated electromagnetic lock for a subway platform door comprises a lock disc (12), a V-shaped water seal (13), a front fixed mounting plate (14), a rotary gasket (15), a bearing (16) and a mechanism disc (1) which are coaxially connected in sequence, wherein an electromagnet (18) and an iron core (19) driven by the electromagnet are arranged on one side below the front fixed mounting plate (14); the mechanism is characterized in that a groove is formed in the bottom of the mechanism disc (1) and is in sliding fit with a roller arranged on a roller lock hook (2) below the groove to realize locking; the roller locking hook (2) is connected with the electromagnet (18) through the connecting shaft (5), and the rotation of the roller locking hook (2) drives the adapter plate (6) below the roller locking hook to horizontally move and trigger the unlocking/locking in-place stroke detection switch (7) to send a signal; the rotation of the mechanism disc (1) triggers the closing of the in-place travel detection switch (8) to send a signal, and a limit adjusting block (11) is arranged above the mechanism disc (1); the front fixed mounting plate (14) is connected with the rear cover plate (20) through bolts, and the unlocking/locking in-place stroke detection switch (7) and the closing in-place stroke detection switch (8) are sealed in the front fixed mounting plate.

2. The integrated electromagnetic lock for a subway platform door as claimed in claim 1, wherein a ring of said front fixing mounting plate (14) attached to said rear cover plate (20) is grooved, and a sealing strip (9) is disposed in said groove.

3. The integrated electromagnetic lock for subway platform doors as claimed in claim 1 or 2, wherein said back cover plate (20) has a pressing block (21) on its outer surface, said pressing block (21) fixes the unlocking/locking position stroke detection switch (7) and the wire protecting cover (22) on the connecting line of the closing position stroke detection switch (8).

4. The integrated electromagnetic lock for a subway platform door according to claim 3, wherein a manual unlocking button (24) is arranged at the bottom of a box body formed by the front fixing mounting plate (14) and the rear cover plate (20), and manual triggering of the manual unlocking button (24) sequentially causes linkage of a push slide sheet (25), an adapter sheet (6) and an unlocking/locking in-place stroke detection switch (7) in the sealing box.

5. The integrated electromagnetic lock for a subway platform door as claimed in claim 4, wherein said back cover plate (20) has fixing waist holes (23) for installation at four corners, respectively.