Station door electromagnetic lock lock cylinder and electromagnetic lock system thereof

Abstract

The application provides a platform door electromagnetic lock lock cylinder and an electromagnetic lock system thereof. The electromagnetic lock lock cylinder comprises a support, an electromagnet, a sliding plate and a trigger plate. The electromagnet is fixed to the support. The trigger plate is provided with a lock slot and a retreat stopping groove. The sliding plate comprises a clutch piece and a manual transmission plate. The clutch piece and the manual transmission plate are respectively slidably installed on the front and back surfaces of the support. The top of the clutch piece is connected with the electromagnet. The clutch piece is provided with a limiting column. The manual transmission plate is provided with a pin shaft. The pin shaft supports the limiting column through a long hole in the middle of the support. The pin shaft slides along the long hole. The bottom of the manual transmission plate is provided with a push plate. In the locked state of the electromagnetic lock, the limiting column falls into the lock slot. In the unlocked state of the electromagnetic lock, the limiting column is separated from the lock slot and is supported through the retreat stopping groove. The high stability of the platform door electromagnetic lock is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lock structure, and particularly relates to a platform door electromagnetic lock cylinder and an electromagnetic lock system thereof. BACKGROUND

[0002] With the rapid development of cities, rail transit is becoming more and more important in the urban public transportation system. The shield door system used in rail transit is a typical mechatronic product. The sliding platform door of the shield door system is arranged along the edges of the two sides of the rail transit platform to separate the vehicle track and the platform, which not only ensures the safety of passengers, but also reduces the operation energy consumption of the air conditioning and ventilation system in the station and the noise impact on the platform when the train passes. The electromagnetic lock belongs to the transmission locking system of the rail transit shield door system, and the main function is to assist in controlling the normal opening and closing of the sliding platform door to ensure the reliability of the opening and closing of the platform door. During the opening and closing of the platform door, the electromagnetic lock is the most critical component, and whether the function of the electromagnetic lock is reliable relates to whether the door body can be normally opened. The current electromagnetic lock structure is relatively complex, and mechanical failures are prone to occur after multiple uses, which has poor stability and is difficult to meet the quality requirements of high-frequency use in the rail transit system, thereby affecting the normal operation of the rail transit system. SUMMARY

[0003] The present application provides a platform door electromagnetic lock cylinder and an electromagnetic lock system thereof to solve the defect that the platform door electromagnetic lock is prone to mechanical failure in the prior art and realize high stability of the platform door electromagnetic lock.

[0004] The present application provides a platform door electromagnetic lock cylinder, which comprises a bracket, an electromagnet, a sliding plate and a trigger plate. The electromagnet is fixed to the bracket. The trigger plate is two, and the two trigger plates are rotatably installed on the bracket and oppositely arranged. The trigger plate is provided with a lock groove and a retreat groove. The sliding plate comprises a clutch piece and a manual transmission plate, and the clutch piece and the manual transmission plate are slidably installed on the front and back of the bracket,

[0005] The top of the clutch piece is connected with the electromagnet. The clutch piece is provided with a limiting column. The manual transmission plate is provided with a pin shaft. The pin shaft supports the limiting column through the long hole in the middle of the bracket. The pin shaft slides along the long hole. The bottom of the manual transmission plate is provided with a push plate.

[0006] In the locked state of the electromagnetic lock, the limiting column falls into the lock groove. In the unlocked state of the electromagnetic lock, the limiting column is separated from the lock groove and supported through the retreat groove.

[0007] The station door electromagnetic lock lock cylinder provided by the application is characterized in that a plurality of stepped shafts are arranged on the support, a plurality of through holes corresponding to the stepped shafts are arranged on the clutch plate and the manual transmission plate respectively, the stepped shafts pass through the corresponding through holes and slide up and down along the through holes; the stepped shafts include upper stepped shafts and lower stepped shafts, the upper stepped shafts are two, pass through the through holes at the upper two ends of the clutch plate respectively and slide up and down along the through holes, the lower stepped shafts are two, pass through the through holes at the lower two ends of the clutch plate respectively and pass through the through holes at the lower two ends of the manual transmission plate simultaneously and slide up and down along the through holes, and two trigger plates are cross-rotatably connected to the two lower stepped shafts respectively.

[0008] The station door electromagnetic lock lock cylinder provided by the application is characterized in that a reinforcing plate is connected between the upper stepped shafts and the lower stepped shafts.

[0009] The station door electromagnetic lock lock cylinder provided by the application is characterized in that the end of the pin shaft is a semicylinder.

[0010] The station door electromagnetic lock lock cylinder provided by the application further includes two travel switches fixed to the left and right ends of the support respectively, and the clearance between the roller of the travel switch and the clutch plate is 0.5-1 mm in the electromagnetic lock locking state.

[0011] The station door electromagnetic lock lock cylinder provided by the application is characterized in that the angle of the retreat-stop groove is 82-88 degrees.

[0012] The station door electromagnetic lock lock cylinder provided by the application is characterized in that a hook groove is further arranged on the trigger plate, the lock pin of the station door falls into the hook groove in the electromagnetic lock locking state, and the clearance between the hook groove and the lock pin of the station door is 0.2-0.6 mm.

[0013] The station door electromagnetic lock lock cylinder provided by the application is characterized in that the two ends of the manual transmission plate are respectively provided with buffer plates, and the angle between the buffer plate and the bottom surface of the manual transmission plate is 45 degrees.

[0014] The station door electromagnetic lock lock cylinder provided by the application is characterized in that the electromagnet and the clutch plate are connected through a limiting sleeve and a shaft coupling, and the clutch plate, the limiting sleeve and the shaft coupling are all non-magnetic materials.

[0015] The application further provides a station door electromagnetic lock system comprising the station door electromagnetic lock lock cylinder.

[0016] The application provides a platform door electromagnetic lock lock cylinder and an electromagnetic lock system thereof, wherein the sliding plate is split into a clutch plate and a manual transmission plate, and the clutch plate is connected with the electromagnet. When the electric unlocking is performed, the electromagnet is powered, the clutch plate is driven to slide upward, the limiting column of the clutch plate is separated from the locking groove of the trigger plate, and the retreat groove supports the clutch plate, and the electromagnetic lock is in the unlocking state. When the manual unlocking is performed, the top rod of the platform door moves upward, pushes the push plate at the bottom of the manual transmission plate, the manual transmission plate slides upward, the pin shaft of the manual transmission plate supports the limiting column to move upward through the long hole in the middle of the support, the clutch plate and the manual transmission plate slide upward synchronously until the electromagnetic lock is unlocked, after the unlocking, the retreat groove of the trigger plate supports the clutch plate, after the staff releases the manual unlocking wrench, the top rod of the platform door falls, and the independently arranged manual transmission plate also falls and resets. Compared with the structure that the electric unlocking part and the manual unlocking part are integrated in the existing electromagnetic lock, the manual unlocking part is independently arranged, the manual transmission plate does not move with the clutch plate when the electromagnetic lock is opened and closed, the mass of the clutch plate is effectively reduced, the power supply current of the electromagnetic lock coil is reduced, the service life of the electromagnet is significantly improved in the process of daily high-frequency electric unlocking, the probability of mechanical failure in the electromagnetic lock is reduced, and the high stability of the platform door electromagnetic lock is realized. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can be obtained by those skilled in the art without any creative effort.

[0018] Figure 1 is one of the structural schematic diagrams of the platform door electromagnetic lock lock cylinder provided by the application;

[0019] Figure 2 is the second structural schematic diagram of the platform door electromagnetic lock lock cylinder provided by the application;

[0020] Figure 3 is the structural schematic diagram of the platform door electromagnetic lock lock cylinder in the locking state provided by the application;

[0021] Figure 4 is the structural schematic diagram of the platform door electromagnetic lock lock cylinder in the unlocking state provided by the application;

[0022] Figure 5 is the structural schematic diagram of the support of the platform door electromagnetic lock lock cylinder provided by the application;

[0023] Figure 6 is the structural schematic diagram of the clutch plate of the platform door electromagnetic lock lock cylinder provided by the application;

[0024] Figure 7 is a structural schematic view of a manual transmission plate of a platform door electromagnetic lock lock core provided by the present application;

[0025] Figure 8 is a structural schematic view of a trigger plate of a platform door electromagnetic lock lock core provided by the present application;

[0026] Figure 9 is an enlarged schematic view of a roller and clutch plate gap of a platform door electromagnetic lock lock core provided by the present application.

[0027] The reference signs: support 1, electromagnet 2, clutch plate 3, manual transmission plate 4, trigger plate 5, travel switch 6, lock pin 7, long hole 11, upper stepped shaft 12, lower stepped shaft 13, reinforcing plate 14, limiting sleeve 21, coupling 22, limiting column 31, pin shaft 41, push plate 42, buffer plate 43, lock slot 51, retreat stop groove 52, hook groove 53, roller 61. DETAILED DESCRIPTION

[0028] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be clearly and completely described below in conjunction with the drawings in the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0029] The first embodiment of the platform door electromagnetic lock lock core of the present application will be described below in conjunction with Figures 1-8 The first embodiment of the platform door electromagnetic lock lock core of the present application will be described below in conjunction with

[0030] As shown in Figure 1 and Figure 2 , a platform door electromagnetic lock lock core comprises: support 1, electromagnet 2, sliding plate and trigger plate 5, the electromagnet 2 is fixed to the support 1, the trigger plate 5 is two, the two trigger plates 5 are rotatably installed on the support 1, and the two trigger plates 5 are oppositely arranged, the trigger plate 5 is provided with a lock slot 51 and a retreat stop groove 52, the sliding plate comprises a clutch plate 3 and a manual transmission plate 4, the clutch plate 3 and the manual transmission plate 4 are slidably installed on the front and back of the support 1 respectively.

[0031] The top of the clutch plate 3 is connected with the electromagnet 2, the clutch plate 3 is provided with a limiting column 31, the manual transmission plate 4 is provided with a pin shaft 41, the pin shaft 41 supports the limiting column 31 through the long hole 11 in the middle of the support 1, the pin shaft 41 slides along the long hole 11, and the bottom of the manual transmission plate 4 is provided with a push plate 42.

[0032] In the locked state of the electromagnetic lock, the limiting column 31 falls into the lock slot 51, and in the unlocked state of the electromagnetic lock, the limiting column 31 is separated from the lock slot 51 and supported by the retreat stop groove 52.

[0033] The station door electromagnetic lock cylinder provided by the embodiment is characterized in that the sliding plate is split into the clutch plate 3 and the manual transmission plate 4, and the clutch plate 3 is connected with the electromagnet 2. When the electric unlocking is performed, the electromagnet 2 is powered, and the clutch plate 3 is driven to slide upward, the limiting column 31 of the clutch plate 3 is separated from the lock slot 51 of the trigger plate 5 and supported by the retreat stop groove 52, and the electromagnetic lock is in the unlocked state. When the manual unlocking is performed, the top rod of the station door moves upward, pushes the push plate 42 at the bottom of the manual transmission plate 4, and the manual transmission plate 4 slides upward, the pin shaft 41 of the manual transmission plate 4 supports the limiting column 31 to move upward through the long hole 11 in the middle of the bracket 1, so that the clutch plate 3 and the manual transmission plate 4 slide upward synchronously until the electromagnetic lock is unlocked. After the unlocking, the retreat stop groove 52 of the trigger plate 5 supports the clutch plate 3, and after the staff releases the manual unlocking wrench, the top rod of the station door falls, and the independently arranged manual transmission plate 4 also falls and resets. Compared with the structure that the electric unlocking component and the manual unlocking component are integrated in the existing electromagnetic lock, the manual unlocking component is independently arranged in the present application, the manual transmission plate 4 does not move with the clutch plate 3 when the electromagnetic lock is opened and closed by the electric drive, the mass of the clutch plate 3 is effectively reduced, and the current of the electromagnetic lock coil is reduced. In the process of the daily high-frequency electric unlocking, the service life of the electromagnet 2 can be significantly improved, the probability of mechanical failure in the electromagnetic lock is reduced, and the high stability of the station door electromagnetic lock is achieved.

[0034] In the embodiment, the bracket 1 is provided with a plurality of stepped shafts, the clutch plate 3 and the manual transmission plate 4 are respectively provided with a plurality of through holes corresponding to the stepped shafts, the stepped shafts pass through the corresponding through holes and slide up and down along the through holes, the stepped shafts include the upper stepped shaft 12 and the lower stepped shaft 13, the upper stepped shaft 12 is two, passes through the through holes at the two ends of the upper part of the clutch plate 3 and slides up and down along the through holes, the lower stepped shaft 13 is two, passes through the through holes at the two ends of the lower part of the clutch plate 3 and simultaneously passes through the through holes at the two ends of the lower part of the manual transmission plate 4 and slides up and down along the through holes, and the two trigger plates 5 are respectively cross-rotatably connected to the two lower stepped shafts 13.

[0035] As Figure 5 and Figure 6As shown, the front of the bracket 1 is provided with two upper stepped shafts 12 and two lower stepped shafts 13, the two upper stepped shafts 12 pass through the through holes at the upper ends of the clutch plates 3 and slide up and down along the through holes. The two lower stepped shafts 13 pass through the through holes at the lower ends of the clutch plates 3 and the through holes at the lower ends of the manual transmission plate 4, and slide up and down along the through holes. In this embodiment, the manual transmission plate 4 is provided with three through holes, in addition to the two through holes at the lower end connected with the lower stepped shafts 13, the upper end is provided with a through hole connected with the stepped shaft at the back of the bracket 1, so that the three through holes of the manual transmission plate 4 are matched with the three stepped shafts at the back of the bracket 1 to slide up and down, which has better stability. And the two trigger plates 5 are cross-rotatably connected to the two lower stepped shafts 13, that is, the trigger plate 5 on the left is rotatably connected with the lower stepped shaft 13 on the right, and the trigger plate 5 on the right is rotatably connected with the lower stepped shaft 13 on the left, and the two trigger plates 5 rotate towards each other. The cross-connection between the trigger plates 5 forms a rotating mode of eccentric shaft, which can play a balancing role to make the trigger plate 5 rotate more stably, so as to reduce the mechanical failure rate of the mechanical lock.

[0036] In this embodiment, the upper stepped shaft 12 and the lower stepped shaft 13 are connected with a reinforcing plate 14.

[0037] The two upper stepped shafts 12 and the two lower stepped shafts 13 are connected with an integrated reinforcing plate 14, which can improve the structural strength of the stepped shaft during sliding along the through hole.

[0038] In this embodiment, the end of the pin shaft 41 is a semi-cylindrical body.

[0039] As shown in the figure, Figure 7 The pin shaft 41 of the manual transmission plate 4 is used to support the upward movement of the limiting column 31, and the end of the pin shaft 41 is processed into a semi-cylindrical body, so that the end face can better contact with the limiting column 31, preventing the manual transmission plate 4 from moving too fast and the pin shaft 41 from slipping with the limiting column 31.

[0040] In this embodiment, two travel switches 6 are fixed to the left and right ends of the bracket 1, and the clearance between the roller 61 of the travel switch 6 and the clutch plate 3 is 0.5-1mm in the locked state of the electromagnetic lock.

[0041] As shown in the figure, Figure 9 In this embodiment, the travel switch 6 is used to record the movement of the clutch plate 3, and the travel switch 6 contacts the edge of the clutch plate 3 through the roller 61 to identify the upward or downward movement of the clutch plate 3, thereby sending an unlocking or locking signal. As shown in the figure, Figure 3 When the electromagnetic lock is in the locked state, there is a certain gap between the roller 61 and the edge of the clutch plate 3. The clutch plate 3 moves upward, as shown in the figure, Figure 4As shown, when the electromagnetic lock is in the unlocked state, the clutch plate 3 moves upward, pushing the roller 61 to rotate a certain angle. Taking the left roller 61 as an example, in this embodiment, when the clutch plate 3 moves upward, it pushes the left roller 61 to rotate counterclockwise by 30 degrees. After that, the roller 61 stops rotating as the clutch plate 3 is fixed (at this time, the clutch plate 3 is in contact with the roller 61). During the locking process, the clutch plate 3 moves downward, pushing the left roller 61 to rotate clockwise by 30 degrees. After that, the clutch plate 3 is fixed. At this time, there is a gap of 0.5-1 mm between the clutch plate 3 and the roller 61, allowing the roller 61 to continue rotating about 30 degrees under inertia. That is, the roller 61 rotates 60 degrees clockwise during the locking process before stopping. Therefore, each time the door is opened or closed, the left roller 61 rotates 30 degrees clockwise. After 12 cycles, the roller 61 completes one full rotation. The same applies to the right roller 61. By setting the above gap, the roller 61 rotates once after several door opening and closing actions. The intermittent rotation of the roller 61 makes the wear of the roller 61 more uniform. Compared with the existing device where the roller 61 always rotates at a fixed angle, there will be no crescent-shaped wear, which improves the durability of the limit switch 6.

[0042] In this embodiment, the angle of the anti-reverse groove 52 is 82-88 degrees.

[0043] like Figure 8 As shown, the anti-reverse groove 52 of the trigger plate 5 is used to support the limiting post 31 in the unlocked state of the electromagnetic lock. The inner angle of the anti-reverse groove 52 is set at 82-88 degrees, so that the gravity of the clutch plate 3 and other components acts on the trigger plate 5. When in the unlocked holding position, the trigger plate 5 is subjected to a torque in the direction of the unlocking rotation limit position, which helps the trigger plate 5 to stay in the unlocking limit position. Even if the trigger plate 5 rotates in the locking direction due to vibration or other reasons, this rotation angle may cause the platform door locking pin 7 and the protruding part of the trigger plate 5 to interfere and scrape when the platform door is closed. However, the existence of torque keeps the trigger plate 5 in the unlocking limit position. Therefore, when the door is closed, the chance of interference and scraping between the platform door locking pin 7 and the trigger plate 5 is reduced, which can avoid the occurrence of closing failure to a certain extent. At the same time, it makes the driving torque of the trigger plate 5 for unlocking gravity reset greater, which is beneficial for the trigger plate 5 to return to the corresponding position after the electromagnetic lock is unlocked. It is also beneficial for the clearance fit between the limiting post 31 and the trigger plate 5 when the door is closed and locked, reducing the failure rate of the electromagnetic lock.

[0044] In this embodiment, the trigger plate 5 is also provided with a hook groove 53. When the electromagnetic lock is locked, the locking pin 7 of the platform door falls into the hook groove 53. The gap between the hook groove 53 and the locking pin 7 of the platform door is 0.2-0.6 mm.

[0045] like Figure 3As shown, in the electromagnetic lock closed state, the locking pin 7 of the platform door falls into the hook slot 53 of the trigger plate 5, and the gap between the hook slot 53 and the locking pin 7 of the platform door is 0.2-0.6 mm. If the gap is less than 0.2 mm, the locking pin 7 is easy to be stuck, and if the gap is greater than 0.6 mm, the locking function is easy to fail. Setting the gap in the range of 0.2-0.6 mm can ensure that the locking pin 7 operates flexibly and the locking function is reliable.

[0046] In this embodiment, the two ends of the manual transmission plate 4 are respectively provided with buffer plates 43, and the angle between the buffer plates 43 and the bottom surface of the manual transmission plate 4 is 45 degrees.

[0047] In the process of manual unlocking, the top rod of the platform door pushes the manual transmission plate 4, and the manual transmission plate 4 pushes the clutch plate 3 to slide upward for unlocking. If the clutch plate 3 of the electromagnetic lock needs to rise by a height h to complete the unlocking, the top rod should rise by a height greater than h in the unlocking process to ensure reliable unlocking action. Thus, in the process from unlocking to locking, the upper end surface of the top rod is slightly higher than the push plate 42 of the manual transmission plate 4, and the top rod and the push plate 42 may be stuck during door closing. Therefore, by adding buffer plates 43 to the left and right ends of the manual transmission plate 4 and setting the angle between the buffer plates 43 and the bottom surface of the manual transmission plate 4 to be 45 degrees, the top rod can be moved smoothly under the manual transmission plate 4 during door closing, avoiding interference and sticking. If the angle is too small, the buffer plates 43 have a problem of large length and mass, and if the angle is too large, the horizontal load during door closing is destructive to the buffer plates 43.

[0048] In this embodiment, the electromagnet 2 and the clutch plate 3 are connected through a limiting sleeve 21 and a coupling 22, and the clutch plate 3, the limiting sleeve 21 and the coupling 22 are all non-magnetic materials.

[0049] The electromagnet 2 and the clutch plate 3 are connected through the limiting sleeve 21 and the coupling 22, and the structure of the limiting sleeve 21 and the coupling 22 ensures the stability of the connection between the electromagnet 2 and the clutch plate 3 and the flexibility during movement. In this embodiment, the energization time of the driving electromagnetic lock is less than 0.5 seconds to avoid burning of the electromagnetic lock. Meanwhile, the clutch plate 3, the limiting sleeve 21 and the coupling 22 are all non-magnetic materials, which are 304 stainless steel in this embodiment to avoid magnetization phenomenon after short-time energization, and the 304 stainless steel has high rigidity to ensure the stability of the electromagnetic lock.

[0050] The working principle of this embodiment is as follows:

[0051] When the door is opened by the motor, the electromagnetic lock coil is powered by DC 110V first, the armature of the electromagnet 2 moves upward to the limit position, and the clutch plate 3 is driven to move upward to the upper limit position. The left trigger plate 5 rotates counterclockwise to the limit position, the right trigger plate 5 rotates clockwise to the limit position, and the manual transmission plate 4 is located at the lower limit position. After the electromagnet 2 coil is powered for 0.5 seconds, the armature falls about 3mm, at this time, the limit column 31 of the clutch plate 3 falling with the armature contacts the retreat groove 52 of the left and right trigger plates 5, the left and right trigger plates 5 support the clutch plate 3 and the armature, so that the clutch plate 3 is located at the unlocking position (about 3mm lower than the upper limit position), at this time, the electromagnetic lock is in the unlocking state.

[0052] When the door is closed by the motor, the left and right platform doors move to the middle, when the lock pin 7 of the left platform door contacts the left trigger plate 5, the left trigger plate 5 starts to rotate clockwise. When the lock pin 7 of the right platform door contacts the right trigger plate 5, the right trigger plate 5 starts to rotate clockwise. When the lock pin 7 of the left and right platform doors pushes the left and right identification to rotate to the limit position, the clutch plate 3 falls to the lower limit position. At this time, the left and right trigger plates 5 and the clutch plate 3 lock the lock pin 7 of the left and right platform doors, and the left and right platform doors are locked, at this time, the electromagnetic lock is in the locked state.

[0053] When the door is unlocked manually, there is a gap of 1.9mm between the pin shaft 41 of the manual transmission plate 4 and the limit column 31 of the clutch plate 3 under the action of the trigger plate 5. The top rod of the platform door moves upward, the top rod contacts the push plate 42 at the bottom of the manual transmission plate 4, the manual transmission plate 4 moves upward, the gap between the pin shaft 41 of the manual transmission plate 4 and the limit column 31 of the clutch plate 3 gradually becomes smaller, and then the clutch plate 3 moves upward together with the manual unlocking transmission until the electromagnetic lock is unlocked, at this time, the manual transmission plate 4 and the clutch plate 3 move to the upper limit position. After unlocking, the manual transmission plate 4 falls to the lower limit position, and the clutch plate 3 is located at the unlocking position.

[0054] Correspondingly, the second embodiment of the present application also provides a platform door electromagnetic lock system, which comprises any one of the platform door electromagnetic lock cylinders.

[0055] The platform door electromagnetic lock system provided by the embodiment can significantly improve the service life of the electromagnet 2, reduce the probability of mechanical failure in the electromagnetic lock, and realize high stability of the platform door electromagnetic lock.

[0056] It should be pointed out finally that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit the same; and although the present application has been described in detail with reference to the foregoing embodiments, it should be appreciated by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features thereof can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A platform door electromagnetic lock cylinder, characterized in that, include: The system comprises a bracket, an electromagnet, a sliding plate, and a trigger plate. The electromagnet is fixed to the bracket. Two trigger plates are rotatably mounted on the bracket and face each other. Each trigger plate has a locking groove and a backstop groove. The sliding plate includes a clutch plate and a manual transmission plate, which are slidably mounted on the front and back of the bracket, respectively. The top of the clutch plate is connected to the electromagnet, the clutch plate is provided with a limiting post, the manual transmission plate is provided with a pin, the pin passes through the elongated hole in the middle of the bracket to support the limiting post, the pin slides along the elongated hole, and the bottom of the manual transmission plate is provided with a push plate. The trigger plate is also provided with a hook groove. When the electromagnetic lock is locked, the limiting post falls into the lock groove and the locking pin of the platform door falls into the hook groove. When the electromagnetic lock is unlocked, the limiting post disengages from the lock groove and is supported by the anti-reverse groove, and the locking pin of the platform door disengages from the hook groove.

2. The platform door electromagnetic lock cylinder according to claim 1, characterized in that, The bracket is provided with several stepped shafts, and the clutch plate and the manual transmission plate are respectively provided with several through holes corresponding to the stepped shafts. The stepped shafts pass through the corresponding through holes and slide up and down along the through holes. The stepped shafts include upper stepped shafts and lower stepped shafts. There are two upper stepped shafts, which pass through the through holes at both ends of the upper part of the clutch plate and slide up and down along the through holes. There are two lower stepped shafts, which pass through the through holes at both ends of the lower part of the clutch plate and simultaneously pass through the through holes at both ends of the lower part of the manual transmission plate and slide up and down along the through holes. The two trigger plates are respectively rotatably connected to the two lower stepped shafts.

3. The platform door electromagnetic lock cylinder according to claim 2, characterized in that, A reinforcing plate connects the upper stepped shaft and the lower stepped shaft.

4. The platform door electromagnetic lock cylinder according to claim 1, characterized in that, The end of the pin is a semi-cylinder.

5. The platform door electromagnetic lock cylinder according to claim 1, characterized in that, It also includes two limit switches, which are fixed to the left and right ends of the bracket respectively. When the electromagnetic lock is engaged, the gap between the roller of the limit switch and the clutch plate is 0.5-1 mm.

6. The platform door electromagnetic lock cylinder according to claim 1, characterized in that, The angle of the anti-reverse groove is 82-88 degrees.

7. The platform door electromagnetic lock cylinder according to claim 1, characterized in that, The gap between the groove and the locking pin of the platform door is 0.2-0.6 mm.

8. The platform door electromagnetic lock cylinder according to claim 1, characterized in that, The manual transmission plate has buffer plates at both ends, and the angle between the buffer plates and the bottom surface of the manual transmission plate is 45 degrees.

9. The platform door electromagnetic lock cylinder according to claim 1, characterized in that, The electromagnet is connected to the clutch plate via a limiting sleeve and a coupling. The clutch plate, the limiting sleeve, and the coupling are all made of non-magnetic materials.

10. A platform screen door electromagnetic lock system, characterized in that, Includes the platform door electromagnetic lock cylinder as described in any one of claims 1 to 9.

Images