Swing arm type platform door lock and platform door

Abstract

The utility model relates to the technical field of rail transit facilities, and discloses a swing arm type platform door lock and a platform door, the swing arm type platform door lock comprises a mounting frame, a mounting plate and a bracket, a driving groove is formed in the mounting plate in a penetrating mode, the bracket is fixedly mounted on the plate surface of the mounting plate and located on one side of the circumferential direction of the driving groove, and the mounting plate is fixedly connected with the bracket; the side, away from the driving groove, of the installation inclined face inclines towards the side, away from the installation plate, of the installation inclined face. The swing arm comprises a connecting rod and a crank arm, the connecting rod is rotationally connected with the mounting plate, the crank arm is arranged on the connecting rod, the crank arm penetrates through the driving groove and has a locking position and an unlocking position, the platform door is locked at the locking position, and the platform door is unlocked at the unlocking position; the electromagnet is arranged on the installation inclined face, a telescopic rod of the electromagnet faces the driving groove and is hinged to the crank arm, the electromagnet is suitable for driving the crank arm to be switched between the locking position and the unlocking position, and the problems that a platform door lock is complex in structure, large in occupied space and not suitable for application scenes with narrow installation space are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transportation facilities, in particular to a swing-arm type platform door lock and a platform door. Background Art

[0002] In rail transit, platform doors are a crucial line of defense for protecting passengers. Installed at the edge of the platform, between the train and passengers, they shield and guide passengers as they board and alight. After the train comes to a complete stop, the sliding doors open, connecting the platform to the train's interior. When the sliding doors close, they isolate passengers from the train before it comes to a complete stop. At this point, the sliding doors are locked by a locking mechanism, preventing passengers from opening the doors and accessing the tracks.

[0003] In the prior art, platform door locks have various structural forms, but the existing platform door locks have relatively complex structures, occupy a large space, and are not suitable for application scenarios with relatively narrow installation space. Utility Model Content

[0004] In view of this, the utility model provides a swing-arm platform door lock and a platform door to solve the problem that the platform door lock has a complex structure, occupies a large space, and is not suitable for application scenarios with narrow installation space.

[0005] In the first aspect, the utility model provides a swing-arm type platform door lock, including a mounting frame, including a mounting plate and a bracket, wherein a drive groove is provided through the mounting plate, the bracket is fixedly mounted on the plate surface of the mounting plate and is located on one side of the circumference of the drive groove, and a mounting inclined surface is provided on the bracket, and the mounting inclined surface is inclined toward the side away from the drive groove toward the side away from the mounting plate; the swing arm, including a connecting rod and a curved arm, the connecting rod is rotatably connected to the mounting plate, the curved arm is provided on the connecting rod, the curved arm passes through the drive groove and has a locked position and an unlocked position, in the locked position, the platform door is locked, and in the unlocked position, the platform door is unlocked; an electromagnet is provided on the mounting inclined surface, and the telescopic rod of the electromagnet is arranged toward the drive groove and is hinged to the curved arm, suitable for driving the curved arm to switch between the locked position and the unlocked position.

[0006] Beneficial Effects: The swing arm is rotatably connected to the mounting plate, allowing the crank arm on the swing arm to move within a certain range, thereby allowing the crank arm to have a locked position and an unlocked position, thereby realizing the locking and unlocking functions of the platform door. By providing a bracket, providing an inclined mounting surface on the bracket, and mounting the electromagnet on the mounting surface, the required telescopic stroke of the telescopic rod is reduced due to the smaller angle between the telescopic rod on the electromagnet and the direction of movement of the crank arm. At the same time, the inclined arrangement of the electromagnet reduces the longitudinal and lateral space occupied by the structure on the door body, making the structure suitable for applications with relatively narrow installation space.

[0007] In an optional embodiment, a first step portion is provided on the crank arm, and in the locking position, the first step portion abuts against the edge of the slot of the driving slot facing the bracket side and closes the driving slot.

[0008] Beneficial effect: By arranging a first step portion on the curved arm and making the first step portion adapt to the contour of the drive groove, the first step portion closes the drive groove in the locked position, thereby reducing the risk of moisture and dust entering the door lock structure through the drive groove in the locked state, reducing structural corrosion and pollution, and improving structural life and structural reliability.

[0009] In an optional embodiment, a second step portion is provided on the crank arm, and in the unlocking position, the second step portion abuts against the edge of the slot on the side of the driving slot away from the bracket and closes the driving slot.

[0010] Beneficial effect: By setting the second step portion to adapt to the contour of the drive groove, the second step portion closes the drive groove in the unlocked position, reducing the risk of moisture and dust entering the door lock structure through the drive groove in the unlocked state, reducing structural corrosion and pollution, and improving structural life and structural reliability.

[0011] In an optional embodiment, a lock plate is rotatably connected to a plate surface on one side of the mounting plate away from the bracket, a limit piece is provided on a side wall of the lock plate facing the driving groove, a limit groove adapted to the limit piece is provided on the side wall of the curved arm facing the lock plate, and in the unlocked position, the limit piece is opposite to the limit groove, and a driving piece is provided on the mounting plate, and the driving piece is used to drive the lock plate to rotate in a direction close to the curved arm.

[0012] Beneficial effect: By setting a lock plate and a limit piece on the lock plate, which cooperates with the limit slot set on the crank arm, the lock plate tends to rotate toward the crank arm due to being driven by the driving member. Therefore, when the crank arm moves to the unlocked position, the limit piece on the lock plate moves close to the limit slot on the crank arm and cooperates with each other, so that the crank arm is limited to the unlocked position.

[0013] In an optional embodiment, the driving member includes a rotating shaft and a tension spring, the rotating shaft passes through the mounting plate in the thickness direction and is rotatably connected to the mounting plate, the locking plate is fixedly connected to the rotating shaft and thus rotatably connected to the mounting plate, a linkage rod is provided on the circumferential side wall of the rotating shaft, the tension spring and the linkage rod are both located on the side of the mounting plate away from the lock plate, one end of the tension spring is fixedly connected to the mounting plate, and the other end is connected to the linkage rod and is suitable for driving the lock plate to rotate.

[0014] Beneficial effect: Since the driving member includes a rotating shaft and a tension spring, the rotating shaft is rotatably connected to the mounting plate, and the locking plate is rotatably connected to the rotating shaft, thereby realizing the rotational connection between the locking plate and the mounting plate. At the same time, a linkage rod is provided on the side wall of the rotating shaft near one end of the bracket, and the linkage rod is connected to the mounting plate through the tension spring, so that the tension spring pulls the linkage rod, and then the locking plate connected to the rotating shaft tends to rotate toward the direction close to the crank arm.

[0015] In an optional embodiment, a push pin is provided on the locking plate, and the push pin extends in a direction away from the mounting plate, and the push pin is suitable for driving the locking plate away from the crank arm.

[0016] Beneficial effect: By setting a push pin on the lock plate away from the mounting plate surface, the push pin is facilitated to be linked with the platform door. When the platform door is closed, the platform door slides to touch the push pin, and by pushing the push pin, the lock plate moves away from the crank arm, releasing the limit on the crank arm, allowing the crank arm to extend to the locking position, thereby locking the closed platform door.

[0017] In an optional embodiment, the limiting member is a pin, a nut is fixedly connected to the side wall of the curved arm facing the locking plate, and the inner peripheral side wall of the nut defines the limiting groove.

[0018] Beneficial effects: The pin is used as the limiting member, and the corresponding limiting groove is formed by the nut, the processing cost is low, the structure is easy to manufacture, the function is reliable, and the practicality of the structure is improved.

[0019] In an optional embodiment, a micro switch is further included, and the micro switch is installed on the mounting plate. In the unlocked position, the swing arm triggers the micro switch.

[0020] Beneficial effect: By setting a micro switch, the position of the swing arm is detected, thereby judging the locking status of the platform door and outputting a corresponding signal, which facilitates monitoring the working status of the platform door and improves safety.

[0021] In an optional embodiment, a support frame is provided on the mounting plate, and the support frame extends in a direction parallel to the mounting slope at one end away from the mounting plate, and extends to the side of the curved arm away from the driving groove, and the micro switch is provided at the end of the support frame away from the mounting plate, and the contacts of the micro switch are arranged toward the curved arm.

[0022] Beneficial effect: The support frame provides an installation basis for the micro switch, so that the micro switch can be set on the movement track of the swing arm. At the same time, it also reduces the utilization of the longitudinal space and the lateral space of the overall structure, making the overall structure more compact.

[0023] In a second aspect, the utility model further provides a platform door, comprising: a door body and the above-mentioned swing-arm platform door lock, wherein the mounting plate is arranged on the door body.

[0024] Beneficial effect: Since the above-mentioned swing-arm platform door lock occupies a small space, can adapt to narrow installation space, and has a good dust-proof effect, the application scenarios of the platform door are more diverse, and the practicality of the platform door product is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 This is a side view of the overall structure of a swing-arm platform door lock according to an embodiment of the present utility model;

[0027] Figure 2 for Figure 1 a view from another perspective of the content being shown;

[0028] Figure 3 for Figure 1 Schematic diagram of the other side of the mounting plate shown;

[0029] Figure 4 The figure is a schematic diagram of the exploded structure of a swing-arm platform door lock according to an embodiment of the present utility model.

[0030] Description of reference numerals:

[0031] 100. Mounting frame; 101. Mounting plate; 102. Bracket; 1021. Mounting slope; 103. Drive slot; 104. Support frame; 1041. Vertical section; 1042. Inclined section; 105. Micro switch; 1051. Contact; 200. Swing arm; 201. Connecting rod; 202. Crank arm; 2021. First step portion; 2022. Second step portion; 2023. Limiting slot; 301. Electromagnet; 302. Telescopic rod; 400. Lock plate; 401. Ejector pin; 500. Drive member; 501. Rotating shaft; 5011. Linkage rod; 502. Tension spring. DETAILED DESCRIPTION

[0032] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0033] The following combination Figures 1 to 4 , describing the embodiments of the present utility model.

[0034] According to an embodiment of the present invention, a swing arm platform door lock is provided. Figure 1 and Figure 2 , including a mounting frame 100, a swing arm 200 and an electromagnet 301, the mounting frame 100 includes a mounting plate 101 and a bracket 102, the mounting plate 101 is provided with a driving groove 103, the bracket 102 is fixedly mounted on the plate surface of the mounting plate 101 and is located on one side of the driving groove 103 in the circumferential direction, the bracket 102 is provided with a mounting inclined surface 1021, and the side of the mounting inclined surface 1021 away from the driving groove 103 is inclined toward the side away from the mounting plate 101; the swing arm 200 includes a connecting rod 201 and a curved The arm 202 and the connecting rod 201 are rotatably connected to the mounting plate 101. The curved arm 202 is arranged on the connecting rod 201. The curved arm 202 passes through the driving slot 103 and has a locked position and an unlocked position. In the locked position, the platform door is locked, and in the unlocked position, the platform door is unlocked. The electromagnet 301 is arranged on the mounting bevel 1021. The telescopic rod 302 of the electromagnet 301 is arranged toward the driving slot 103 and is hinged to the curved arm 202, suitable for driving the curved arm 202 to switch between the locked position and the unlocked position.

[0035] In this embodiment, the swing arm 200 is rotatably connected to the mounting plate 101, allowing the curved arm 202 on the swing arm 200 to move within a certain range, thereby allowing the curved arm 202 to have a locked position and an unlocked position, thereby realizing the locking and unlocking functions of the platform door. By providing a bracket 102, providing an inclined mounting surface 1021 on the bracket 102, and mounting the electromagnet 301 on the mounting surface 1021, the angle between the telescopic rod 302 on the electromagnet 301 and the direction of movement of the curved arm 202 is small, thereby reducing the required telescopic travel of the telescopic rod 302. At the same time, the inclined arrangement of the electromagnet 301 reduces the longitudinal and lateral space occupied by the structure on the door body, making the structure suitable for applications where the installation space is relatively narrow.

[0036] In the above embodiment, specifically, the connecting rod 201 and the curved arm 202 are integrally formed, one end of the connecting rod 201 is rotatably connected to the mounting plate 101, and the other end is connected to the curved arm 202, the curved arm 202 and the connecting rod 201 are bent at a certain angle toward the driving groove 103 and extend through the driving groove 103, the rotation axis of the connecting rod 201 is set parallel to the plate surface of the driving groove 103, and as the connecting rod 201 rotates, the position of the curved arm 202 changes and switches between the unlocked position and the locked position.

[0037] It should be noted that when the crank arm 202 is in the locked position and the unlocked position, it drives the lock tongue and other structures to cooperate with the lock hole provided on the platform door to complete the locking of the platform door.

[0038] In addition, specifically, the telescopic rod 302 provided on the electromagnet 301 cooperates with the spring structure inside the electromagnet 301. When the electromagnet 301 is powered on, the telescopic rod 302 retracts. When the electromagnet 301 is powered off, the telescopic rod 302 pops out again under the action of the spring structure.

[0039] In one embodiment, see Figure 1 and Figure 2 A first step portion 2021 is provided on the crank arm 202 . In the locked position, the first step portion 2021 abuts against the edge of the slot of the driving slot 103 facing the bracket 102 and closes the driving slot 103 .

[0040] In this embodiment, by providing a first step portion 2021 on the curved arm 202 and making the first step portion 2021 adapt to the contour of the drive slot 103, the first step portion 2021 seals the drive slot 103 in the locked position, thereby reducing the possibility of moisture and dust entering the door lock structure through the drive slot 103 in the locked state, reducing structural corrosion and pollution, and improving the structural life and structural reliability.

[0041] In one embodiment, see Figure 1 and Figure 2A second step portion 2022 is provided on the crank arm 202 . In the unlocked position, the second step portion 2022 abuts against the edge of the slot of the driving slot 103 away from the bracket 102 and closes the driving slot 103 .

[0042] In this embodiment, by setting the second step portion 2022 to adapt to the contour of the drive groove 103, the second step portion 2022 seals the drive groove 103 in the unlocked position, thereby reducing the possibility of moisture and dust entering the door lock structure through the drive groove 103 in the unlocked state, reducing structural corrosion and pollution, and improving the structural life and structural reliability.

[0043] In some of the above embodiments, it should be noted that the curved arm 202 and the connecting rod 201 are integrally formed, the curved arm 202 is located at the end of the connecting rod 201 away from the rotational connection with the mounting plate 101, the curved arm 202 is arranged at a certain angle to the connecting rod 201, one end of the curved arm 202 passes through the drive slot 103, and the other end is hinged to the telescopic rod 302 of the electromagnet 301. In addition, specifically, the first step portion 2021 and the second step portion 2022 are both integrally formed on the curved arm 202, the first step portion 2021 is located at the end of the curved arm 202 closer to the bracket 102, and the second step portion 2022 is located at the end of the curved arm 202 away from the bracket 102.

[0044] In one embodiment, see Figure 3 A lock plate 400 is rotatably connected to the side surface of the mounting plate 101 away from the bracket 102, and a limit piece (not shown in the figure) is provided on the side wall of the lock plate 400 facing the driving groove 103. A limit groove 2023 that is adapted to the limit piece is provided on the side wall of the curved arm 202 facing the lock plate 400. In the unlocked position, the limit piece is opposite to the limit groove 2023, and a driving member 500 is provided on the mounting plate 101. The driving member 500 is used to drive the lock plate 400 to rotate in a direction close to the curved arm 202.

[0045] In this embodiment, a lock plate 400 is provided, and a limiting member is provided on the lock plate 400, which cooperates with the limiting groove 2023 provided on the crank arm 202. Since the lock plate 400 is driven by the driving member 500 and has a tendency to rotate toward the crank arm 202, when the crank arm 202 moves to the unlocked position, the limiting member on the lock plate 400 moves close to the limiting groove 2023 on the crank arm 202 and cooperates with each other, so that the crank arm 202 is limited in the unlocked position.

[0046] In one embodiment, see Figure 2 and Figure 4The driving member 500 includes a rotating shaft 501 and a tension spring 502. The rotating shaft 501 penetrates the mounting plate 101 along the thickness direction and is rotatably connected to the mounting plate 101. The lock plate 400 is fixedly connected to the rotating shaft 501 and is thus rotatably connected to the mounting plate 101. A linkage rod 5011 is provided on the circumferential side wall of the rotating shaft 501. The tension spring 502 and the linkage rod 5011 are both located on the side of the mounting plate 101 away from the lock plate 400. One end of the tension spring 502 is fixedly connected to the mounting plate 101, and the other end is connected to the linkage rod 5011 and is suitable for driving the lock plate 400 to rotate.

[0047] In this embodiment, since the driving member 500 includes a rotating shaft 501 and a tension spring 502, the rotating shaft 501 is rotationally connected to the mounting plate 101, and the locking plate 400 is rotationally connected to the rotating shaft 501, thereby realizing the rotational connection between the locking plate 400 and the mounting plate 101. At the same time, a linkage rod 5011 is provided on the side wall of the rotating shaft 501 at one end close to the bracket 102, and the linkage rod 5011 is connected to the mounting plate 101 through the tension spring 502, so that the tension spring 502 pulls the linkage rod 5011, thereby causing the locking plate 400 connected to the rotating shaft 501 to have a tendency to rotate toward the direction close to the crank arm 202.

[0048] In one embodiment, a push pin 401 is provided on the locking plate 400 . The push pin 401 extends in a direction away from the mounting plate 101 . The push pin 401 is suitable for driving the locking plate 400 away from the crank arm 202 .

[0049] In this embodiment, a push pin 401 is provided on the lock plate 400 to face away from the mounting plate 101, so that the push pin 401 can be linked with the platform door. When the platform door is closed, the platform door slides to touch the push pin 401, and by pushing the push pin 401, the lock plate 400 moves away from the crank arm 202, thereby releasing the limit on the crank arm 202 and allowing the crank arm 202 to extend to the locked position, thereby locking the closed platform door.

[0050] In one embodiment, see Figure 3 The limiting member is a pin, and a nut is fixedly connected to the side wall of the curved arm 202 facing the locking plate 400, and the inner peripheral side wall of the nut defines a limiting groove 2023.

[0051] In this embodiment, a pin is used as a limiting member, and a corresponding limiting groove 2023 is formed by a nut. The processing cost is low, the structure is easy to manufacture, the function is reliable, and the practicality of the structure is improved.

[0052] In one embodiment, see Figure 1 and Figure 4 , also includes a micro switch 105, the micro switch 105 is installed on the mounting plate 101, and in the unlocked position, the swing arm 200 triggers the micro switch 105.

[0053] In this embodiment, a micro switch 105 is provided to detect the position of the swing arm 200, thereby judging the locking state of the platform door and outputting a corresponding signal, thereby facilitating monitoring of the working state of the platform door and improving safety.

[0054] In one embodiment, see Figure 1 and Figure 4 A support frame 104 is provided on the mounting plate 101. The end of the support frame 104 away from the mounting plate 101 extends in a direction parallel to the mounting inclined surface 1021 and extends to the side of the crank arm 202 away from the driving groove 103. The micro switch 105 is provided at the end of the support frame 104 away from the mounting plate 101, and the contact 1051 of the micro switch 105 is set toward the crank arm 202.

[0055] Specifically, the support frame 104 includes a vertical section 1041 perpendicular to the mounting plate 101 and an inclined section 1042 parallel to the mounting slope 1021. The setting of the vertical section 1041 makes the inclined section 1042 away from the mounting plate 101 and located on the side of the curved arm 202 away from the mounting plate 101, so that the contact 1051 of the micro switch 105 can be set on the movement path of the curved arm 202.

[0056] In this embodiment, the setting of the support frame 104 provides an installation basis for the micro switch 105, so that the micro switch 105 can be set on the movement trajectory of the swing arm 200. At the same time, it also reduces the overall structure's utilization of longitudinal and transverse space, making the overall structure more compact.

[0057] According to an embodiment of the present invention, on the other hand, a platform door is further provided, comprising a door body and the above-mentioned swing-arm platform door lock, wherein a mounting plate 101 is provided on the door body.

[0058] In this embodiment, since the above-mentioned swing-arm platform door lock occupies a small space and can adapt to narrow installation space, and has a good dust-proof effect, the application scenarios of the platform door are more diverse, and the practicality of the platform door product is improved.

[0059] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations shall fall within the scope defined by the appended claims.

Claims

1. A swing arm platform door lock, characterized in that: include: The mounting frame (100) comprises a mounting plate (101) and a bracket (102), wherein a driving groove (103) is provided through the mounting plate (101), and the bracket (102) is fixedly mounted on the plate surface of the mounting plate (101) and is located on one side of the circumference of the driving groove (103), and the bracket (102) is provided with a mounting inclined surface (1021), and the mounting inclined surface (1021) is inclined from a side away from the driving groove (103) to a side away from the mounting plate (101); The swing arm (200) comprises a connecting rod (201) and a crank arm (202), wherein the connecting rod (201) is rotatably connected to the mounting plate (101), and the crank arm (202) is provided on the connecting rod (201). The crank arm (202) passes through the driving slot (103) and has a locking position and an unlocking position. In the locking position, the platform door is locked, and in the unlocking position, the platform door is unlocked. An electromagnet (301) is provided on the installation inclined surface (1021), and a telescopic rod (302) of the electromagnet (301) is arranged toward the driving slot (103) and is hinged to the crank arm (202), and is suitable for driving the crank arm (202) to switch between the locking position and the unlocking position.

2. The swing arm platform door lock according to claim 1, characterized in that: A first step portion (2021) is provided on the crank arm (202). In the locking position, the first step portion (2021) abuts against the edge of the slot of the driving slot (103) on the side facing the bracket (102) and closes the driving slot (103).

3. The swing arm platform door lock according to claim 1, characterized in that: A second step portion (2022) is provided on the crank arm (202). In the unlocked position, the second step portion (2022) abuts against the edge of the slot of the driving slot (103) away from the bracket (102) and closes the driving slot (103).

4. The swing arm platform door lock according to claim 1, characterized in that: A locking plate (400) is rotatably connected to a side surface of the mounting plate (101) away from the bracket (102); a limiting member is provided on a side wall of the locking plate (400) facing the driving groove (103); a limiting groove (2023) adapted to the limiting member is provided on a side wall of the crank arm (202) facing the locking plate (400); in the unlocking position, the limiting member is opposite to the limiting groove (2023); a driving member (500) is provided on the mounting plate (101); and the driving member (500) is used to drive the locking plate (400) to rotate in a direction close to the crank arm (202).

5. The swing arm platform door lock according to claim 4, characterized in that: The driving member (500) includes a rotating shaft (501) and a tension spring (502), wherein the rotating shaft (501) passes through the mounting plate (101) in the thickness direction and is rotatably connected to the mounting plate (101), and the locking plate (400) is fixedly connected to the rotating shaft (501) and thus rotatably connected to the mounting plate (101), and a linkage rod (5011) is provided on the peripheral side wall of the rotating shaft (501), and the tension spring (502) and the linkage rod (5011) are both located on a side of the mounting plate (101) away from the locking plate (400), one end of the tension spring (502) is fixedly connected to the mounting plate (101), and the other end is connected to the linkage rod (5011) and is suitable for driving the locking plate (400) to rotate.

6. The swing arm platform door lock according to claim 4, characterized in that: The locking plate (400) is provided with a push pin (401), which extends in a direction away from the mounting plate (101). The push pin (401) is suitable for driving the locking plate (400) away from the crank arm (202).

7. The swing arm platform door lock according to claim 4, characterized in that: The limiting member is a pin, and a nut is fixedly connected to the side wall of the curved arm (202) facing the locking plate (400), and the inner peripheral side wall of the nut defines the limiting groove (2023).

8. The swing arm platform door lock according to any one of claims 1 to 7, characterized in that: It also includes a micro switch (105), which is mounted on the mounting plate (101). In the unlocked position, the swing arm (200) triggers the micro switch (105).

9. The swing arm platform door lock according to claim 8, characterized in that: A support frame (104) is provided on the mounting plate (101), and one end of the support frame (104) away from the mounting plate (101) extends in a direction parallel to the mounting inclined surface (1021) and extends to a side of the crank arm (202) away from the driving slot (103). The micro switch (105) is provided at one end of the support frame (104) away from the mounting plate (101), and a contact (1051) of the micro switch (105) is arranged toward the crank arm (202).

10. A platform door, characterized in that: include: Door body; The swing arm (200) type platform door lock according to any one of claims 1 to 9, wherein the mounting plate (101) is provided on the door body.

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