Door lock device of platform door

Abstract

The utility model provides a platform door lock device, which belongs to the technical field of platform door locks and comprises a door lock base and a rotating piece, the rotating piece is rotatably arranged on the door lock base, two blocking structures are arranged on the rotating piece, the rotating piece is provided with a first rotating position and a second rotating position, and the first rotating position and the second rotating position are arranged on the rotating piece. When the rotating part is located at the first rotating position, all the blocking structures are located on the motion trails of the corresponding sliding door buckles, and when the rotating part is located at the second rotating position, all the blocking structures are located outside the motion trails of the corresponding sliding door buckles. By arranging the rotatable rotating piece on the door lock base and arranging the two blocking structures on the rotating piece, when the rotating piece rotates, the oppositely-closed platform door can be locked or unlocked at the same time, the situation that when each sliding door is independently locked or unlocked, the unlocking state and the locking state are inconsistent is avoided, and the safety of the door lock is improved. Therefore, the safety of passengers and the getting-on and getting-off speed are ensured.

Description

Technical Field

[0001] This utility model belongs to the field of platform door lock technology, and in particular relates to a platform door lock device. Background Technology

[0002] In existing technology, platform screen doors consisting of two sliding doors are frequently used in subways to separate the platform area from the track area. During use, both sliding doors must be locked simultaneously to isolate passengers from the running subway and ensure passenger safety. After the subway arrives at the station, both sliding doors must be unlocked simultaneously to allow passengers to quickly enter and exit the subway.

[0003] However, existing platform screen doors each have an individual locking mechanism to lock and unlock each door. Therefore, the sliding doors of platform screen doors may lock or unlock asynchronously, affecting passenger boarding and alighting speed and safety. Furthermore, because each sliding door of a platform screen door has its own locking mechanism, the installation space required for the door lock mechanism is large, making it difficult to install and maintain. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a platform door lock device to solve the problems in the prior art.

[0005] To achieve the above and other related objectives, this utility model provides a platform door lock device, comprising:

[0006] Door lock base;

[0007] A rotating component is rotatably mounted on the door lock base. The rotating component has two blocking structures. The rotating component has a first rotating position and a second rotating position. When the rotating component is located at the first rotating position, each of the blocking structures is located on the movement trajectory of the corresponding sliding door latch. When the rotating component is located at the second rotating position, each of the blocking structures is located outside the movement trajectory of the corresponding sliding door latch.

[0008] Optionally, the blocking structure is a blocking protrusion that protrudes toward or away from the door lock base.

[0009] Optionally, the platform door lock device includes a locking and unlocking control component, which is disposed on the door lock base and is used to drive the rotating component to rotate to the first rotating position and / or the second rotating position.

[0010] Optionally, the locking / unlocking control component includes a driver, a limiting block, and a first limiting slider. The limiting block is provided with a first limiting groove extending along a second direction, and the first limiting slider is slidably disposed within the first limiting groove. The rotating component is provided with a transmission part, and the distance between the transmission part and the rotation axis of the rotating component is set.

[0011] The first limiting slider is connected to the transmission part of the rotating member, and the limiting block is connected to the output end of the driver. The driver is used to drive the limiting block to move along the first direction.

[0012] Alternatively, the first limiting slider is connected to the output end of the driver, the limiting block is connected to the transmission part of the rotating member, and the driver is used to drive the limiting block to move along the first direction.

[0013] Wherein, the first direction intersects with the second direction, and the first limiting slider has a first position and a second position within the first limiting groove.

[0014] When the first limiting slider is in the first position, the rotating member is in the first rotating position; when the first limiting slider is in the second position, the rotating member is in the second rotating position.

[0015] Alternatively, when the first limiting slider is in the first position, the rotating member is in the second rotating position; when the first limiting slider is in the second position, the rotating member is in the first rotating position.

[0016] Optionally, the platform door lock further includes a manual unlocking component, which includes a manual unlocking seat. The manual unlocking seat is movably disposed on the door lock base along the second direction, and the first limiting slider and / or the limiting block are located on the movement trajectory of the manual unlocking seat.

[0017] Optionally, a manual limiting structure is provided between the door lock base and the manual unlocking seat, the manual limiting structure being used to constrain the movement trajectory of the manual unlocking seat.

[0018] Optionally, the manual limiting structure includes a second limiting groove and a second limiting slider slidably disposed within the second limiting groove, wherein the second limiting groove extends along the first direction.

[0019] The second limiting groove is disposed on the manual unlocking seat, and the second limiting slider is disposed on the door lock base;

[0020] Alternatively, the second limiting groove is disposed on the door lock base, and the second limiting slider is disposed on the manual unlocking seat.

[0021] Optionally, a reset member is provided between the rotating member and the door lock base; the driver is a push-pull electromagnet; the locking / unlocking control member is used to drive the rotating member to rotate to the first rotation position; and the reset member is used to drive the rotating member to reset to the second rotation position.

[0022] Alternatively, the locking / unlocking control member is used to drive the rotating member to rotate to the second rotating position, and the reset member is used to drive the rotating member to reset to the first rotating position.

[0023] Optionally, the platform door lock device further includes a rotation limiting structure disposed on the lock base, the rotation limiting structure including a first limiting part and a second limiting part and a third limiting part disposed opposite to each other.

[0024] The first limiting part is disposed on the rotating member, and the second limiting part and the third limiting part are disposed on the door lock base. The second limiting part and the third limiting part are both located on the movement trajectory of the first limiting part.

[0025] Alternatively, the first limiting part is disposed on the door lock base, and the second and third limiting parts are disposed on the rotating member, with the first limiting part located on the movement trajectory of the second and third limiting parts.

[0026] Optionally, the rotating member is provided with a third limiting groove, and the opposite groove walls of the third limiting groove are the first limiting part and the second limiting part, respectively. The third limiting part is disposed on the door lock base and accommodated in the third limiting groove. When the rotating member rotates, the third limiting part moves between the first limiting part and the second limiting part of the third limiting groove.

[0027] As described above, the platform door lock device of this utility model has the following beneficial effects:

[0028] By setting a rotatable rotating part on the door lock base and setting two blocking structures on the rotating part, the platform door can be locked or unlocked simultaneously when the rotating part rotates. This avoids the situation where the unlocking and locking states are inconsistent when locking or unlocking each sliding door individually, thus ensuring passenger safety and the speed of boarding and alighting. The platform door lock device is simpler in structure than the locking mechanism set for each sliding door independently, and the installation space occupied is smaller. Attached Figure Description

[0029] Figure 1 This is a front view of the platform door lock device according to an embodiment of the present utility model.

[0030] Figure 2 This is one of the three-dimensional structural schematic diagrams of the platform door lock device according to an embodiment of the present utility model.

[0031] Figure 3 for Figure 2 A magnified structural diagram of point A in the middle.

[0032] Figure 4 This is a rear view of the platform door lock device according to an embodiment of the present utility model.

[0033] Figure 5 for Figure 4 A magnified structural diagram at point B in the middle.

[0034] Figure 6 The second three-dimensional structural schematic diagram of the platform door lock device according to an embodiment of this utility model is shown below.

[0035] Figure 7 for Figure 6 A magnified structural diagram at point C.

[0036] Figure 8 This is a schematic diagram of the structure of the platform door lock device and the sliding door latch locking in accordance with an embodiment of the present utility model.

[0037] Labeling: 1. Door lock base; 2. Blocking protrusion; 3. Rotating component; 4. Door position sensor; 5. Lock unlocking sensor; 6. Lock locking sensor; 7. Manual unlocking seat; 8. Driver; 9. Second limit groove; 10. Second limit slider; 11. Protective cover; 12. First limit groove; 13. Limiting block; 14. First limit slider; 15. Second limit part; 16. First limit part; 17. Third limit part; 18. Sliding door latch. Detailed Implementation

[0038] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0039] Please see Figures 1 to 8 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0040] In order to describe this utility model in detail, the following is a specific description of a platform door lock device of this utility model:

[0041] Please combine Figure 1 , Figure 2 and Figure 8 As shown, this utility model provides a platform door lock device, including a lock base 1 and a rotating component 3. The rotating component 3 is rotatably mounted on the lock base 1 and has two blocking structures. The rotating component 3 has a first rotation position and a second rotation position. When the rotating component 3 is in the first rotation position, each blocking structure is located on the movement trajectory of the corresponding sliding door latch 18. When the rotating component 3 is in the second rotation position, each blocking structure is located outside the movement trajectory of the corresponding sliding door latch 18. By setting a rotatable rotating component 3 on the lock base 1 and setting two blocking structures on the rotating component 3, the platform door can be locked or unlocked simultaneously when the rotating component 3 rotates. This avoids the situation where the unlocking and locking states are inconsistent when locking or unlocking each sliding door individually, thus ensuring passenger safety and the speed of boarding and alighting. The platform door lock device is simpler in structure than the locking mechanism set independently for each sliding door, and the installation space occupied is smaller.

[0042] In this embodiment, the blocking structure is a blocking protrusion 2 that protrudes towards or away from the door lock base 1. The blocking protrusion 2 is easy to manufacture and provides good limiting effect for the sliding door latch 18. In some embodiments, the blocking structure is a limiting groove formed on the rotating member 3, and the sliding door latch engages in the limiting groove when locked. In other embodiments, the blocking structure is annular, and the sliding door latch 18 engages in the annular blocking structure. The type of blocking structure can be adjusted according to actual needs.

[0043] like Figures 4 to 7 As shown, the platform door lock device includes a locking and unlocking control component, which is mounted on the lock base 1. The locking and unlocking control component drives the rotating component 3 to rotate to a first rotation position and / or a second rotation position. The locking and unlocking control component automatically controls the locking and unlocking status of the platform door, making it safe and convenient to use.

[0044] The locking / unlocking control unit includes a driver 8, a limiting block 13, and a first limiting slider 14. The limiting block 13 has a first limiting groove 12 extending in a second direction. The first limiting slider 14 is slidably disposed within the first limiting groove 12. The rotating member 3 has a transmission part, with a distance between the transmission part and the rotation axis of the rotating member 3. The first limiting slider 14 is connected to the transmission part of the rotating member 3. The limiting block 13 is connected to the output end of the driver 8. The driver 8 is used to drive the limiting block 13 to move in the first direction. Alternatively, the first limiting slider 14 is connected to the output end of the driver 8, and the limiting block 13... Connected to the transmission part of the rotating component 3, the driver 8 drives the limiting block 13 to move along a first direction, wherein the first direction intersects with a second direction. The first limiting slider 14 has a first position and a second position within the first limiting groove 12. When the first limiting slider 14 is in the first position, the rotating component 3 is in the first rotation position; when the first limiting slider 14 is in the second position, the rotating component 3 is in the second rotation position; or, when the first limiting slider 14 is in the first position, the rotating component 3 is in the second rotation position; when the first limiting slider 14 is in the second position, the rotating component 3 is in the first rotation position. Through the cooperation of the transmission part of the rotating component 3, the first limiting slider 14, and the first limiting groove 12, the linear motion of the driver 8 can be converted into the rotational motion of the rotating component 3, resulting in a simple structure and convenient control. In this embodiment, the first limiting slider 14 is connected to the transmission part of the rotating member 3, and the limiting block 13 is connected to the output end of the driver 8. The driver 8 is used to drive the limiting block 13 to move along the first direction. The first direction and the second direction are perpendicular, which can reduce the length of the first limiting groove 12, thereby reducing the size of the limiting block 13 and reducing the overall volume of the platform door lock device.

[0045] In this embodiment, a reset member is provided between the rotating member 3 and the door lock base 1. The driver 8 is a push-pull electromagnet. The locking / unlocking control member is used to drive the rotating member 3 to rotate to the first rotation position, and the reset member is used to drive the rotating member 3 to reset to the second rotation position. Alternatively, the locking / unlocking control member is used to drive the rotating member 3 to rotate to the second rotation position, and the reset member is used to drive the rotating member 3 to reset to the first rotation position. The reset member is a torsion spring disposed between the rotating shaft of the rotating member 3 and the door lock base 1. In some embodiments, the reset member can be an elastic element, such as a spring, disposed between the rotating member 3 and the door lock base 1. The spring pulls the rotating member 3 to rotate, thereby achieving the reset of the rotating member 3. The push-pull electromagnet controls the rotation of the rotating member 3 by switching on and off power, which can save energy. For example, power is only required when unlocking, and the push-pull electromagnet does not need to use power to maintain the locked state when locked. In some embodiments, the driver 8 can be a cylinder or a linear motor. The type of driver 8 can be adjusted according to actual needs.

[0046] In detail, the platform door lock also includes a manual unlocking component, which includes a manual unlocking seat 7. The manual unlocking seat 7 is movably mounted on the door lock base 1 in a second direction, and the first limit slider 14 and / or limit block 13 are located on the movement trajectory of the manual unlocking seat 7. By setting up the manual unlocking component, the situation where the door cannot be unlocked by the driver 8 when the power is off can be avoided. The door can be unlocked and opened by manually controlling the manual unlocking component, ensuring the safety of the platform door and improving its reliability during use.

[0047] A manual limiting structure is provided between the door lock base 1 and the manual unlocking seat 7. The manual limiting structure is used to constrain the movement trajectory of the manual unlocking seat 7. By setting the manual limiting structure, the manual unlocking seat 7 can be prevented from sliding out of its predetermined movement trajectory when it is used, thus improving the stability of the manual unlocking seat 7 during use.

[0048] Specifically, the manual limiting structure includes a second limiting groove 9 and a second limiting slider 10 slidably disposed within the second limiting groove 9. The second limiting groove 9 extends along a first direction and is disposed on the manual unlocking seat 7, while the second limiting slider 10 is disposed on the door lock base 1; or, the second limiting groove 9 is disposed on the door lock base 1, while the second limiting slider 10 is disposed on the manual unlocking seat 7. The movement trajectory of the manual unlocking seat 7 is limited by the second limiting groove 9 and the second limiting block 13 slidably disposed within the second limiting groove 9. The structure is simple, easy to manufacture and assemble, and provides good limiting effect.

[0049] like Figure 2 and Figure 3 As shown, the platform door lock device also includes a rotation limiting structure mounted on the lock base 1. The rotation limiting structure includes a first limiting part 16 and two opposing limiting parts 15 and 17. The first limiting part 16 is mounted on the rotating component 3, while the second and third limiting parts 15 and 17 are mounted on the lock base 1. Both the second and third limiting parts 15 and 17 are located on the movement trajectory of the first limiting part 16. Alternatively, the first limiting part 16 is mounted on the lock base 1, while the second and third limiting parts 15 and 17 are mounted on the rotating component 3. The first limiting part 16 is located on the movement trajectory of the second and third limiting parts 15 and 17. By setting the rotation limiting structure, excessive rotation of the rotating component 3 can be avoided, preventing situations such as jamming failure or damage to the sliding door latch 18. This further improves the stability and safety of the platform door lock device during use and reduces the frequency of maintenance.

[0050] In this embodiment, a third limiting groove is provided on the rotating member 3. The groove walls opposite to each other in the third limiting groove are the first limiting part 16 and the second limiting part 15, respectively. The third limiting part 17 is disposed on the door lock base 1 and accommodated within the third limiting groove. When the rotating member 3 rotates, the third limiting part 17 moves between the first limiting part 16 and the second limiting part 15 in the third limiting groove. By creating a third limiting groove on the rotating member 3, the rotation trajectory of the rotating member 3 can be effectively limited, avoiding excessive rotation and facilitating production and assembly. In some embodiments, the first limiting part 16, the second limiting part 15, and the third limiting part 17 are all protrusions. The first limiting part 16 and the second limiting part 15 are disposed on the door lock base, and the third limiting part 17 is disposed on the rotating member. In other embodiments, the third limiting part 17 is disposed on the rotating member 3, and a fourth limiting groove is provided on the door lock base 1. The groove walls opposite to each other in the fourth limiting groove are the first limiting part 16 and the second limiting part 15, respectively. The types of the first limiting part 16, the second limiting part 15, and the third limiting part 17 can be adjusted according to actual usage needs.

[0051] like Figure 1 and Figure 8 As shown, in this embodiment, a door position sensor 4 is also provided on the door lock base 1. The door position sensor 4 is used to detect whether the sliding door is close to the door lock base 1 to lock the platform door. The door lock base 1 is also provided with a lock unlocking sensor 5 and a lock locking sensor 6. When the rotating member 3 is in the first rotation position, the lock locking sensor 6 is triggered; when the rotating member 3 is in the second rotation position, the lock unlocking sensor 5 is triggered. By setting the lock unlocking sensor 5 and the lock locking sensor 6, the current locking status of the platform door can be monitored in real time. The door position sensor 4, lock unlocking sensor 5, and lock locking sensor 6 are proximity switches.

[0052] In this embodiment, during use, when the platform screen door lock device is not closed, the push-pull electromagnet is energized, the magnetic block in the push-pull electromagnet is in a retracted state, and the rotating component 3 is in the second rotation position. At this time, the lock unlocking sensor 5 is in a triggered state. When the door positioning sensor 4 senses that the corresponding platform screen door is approaching, the push-pull electromagnet is de-energized, and the magnetic block in the push-pull electromagnet falls under the guidance of gravity. At the same time, the rotating component 3 rotates to the first rotation position under the drive of the reset component. At this time, the blocking protrusions 2 are all located on the movement trajectory of the corresponding sliding door latch 18, completing the locking work of the platform screen door. At this time, the lock locking sensor 6 is triggered. When the platform screen door needs to be opened, the push-pull electromagnet is energized, the magnetic block in the push-pull electromagnet retracts, and the rotating component 3 rotates to the second rotation position. At this time, the blocking protrusions 2 are all outside the movement trajectory of the corresponding sliding door latch 18, and the platform screen door can be opened.

[0053] In this embodiment, a protective cover 11 is also provided on the door lock base 1, and a receiving groove is formed between the protective cover 11 and the door lock base 1. The receiving groove accommodates the rotating part 3, the lock unlocking sensor 5, the door position sensor 4 and the lock locking sensor 6 to ensure the normal operation of the platform door lock device.

[0054] In summary, by setting a rotatable rotating part 3 on the door lock base 1, and setting two blocking structures on the rotating part 3, the platform door can be locked or unlocked simultaneously when the rotating part 3 rotates. This avoids the situation where the unlocking and locking states are inconsistent when locking or unlocking each sliding door individually, thus ensuring passenger safety and the speed of boarding and alighting. The platform door lock device is simpler in structure than the locking mechanism set independently for each sliding door, and the installation space occupied is smaller.

[0055] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A platform door locking device, characterized in that The application relates to a platform door lock device. The platform door lock device comprises a door lock base, a rotating member rotatably arranged on the door lock base, and two blocking structures arranged on the rotating member, wherein the rotating member has a first rotating position and a second rotating position, each of the blocking structures is located on the movement track of a corresponding sliding door buckle when the rotating member is in the first rotating position, and each of the blocking structures is located out of the movement track of a corresponding sliding door buckle when the rotating member is in the second rotating position. The blocking structure is a blocking protrusion protruding towards the direction of approaching or moving away from the door lock base.

2. The platform door lockset arrangement of claim 1, wherein: The platform door lock device further comprises a locking and unlocking control member arranged on the door lock base, which is used to drive the rotating member to rotate to the first rotating position and / or the second rotating position.

3. The platform door lockset apparatus of claim 1, wherein: The locking and unlocking control member comprises a driver, a limiting block and a first limiting sliding block, the limiting block is provided with a first limiting groove extending in a second direction, the first limiting sliding block is slidingly arranged in the first limiting groove, the rotating member is provided with a transmission part, the transmission part is arranged at a distance from the rotating shaft of the rotating member, 4. The platform door lockset apparatus of claim 3, wherein: the first limiting sliding block is connected with the transmission part of the rotating member, the limiting block is connected with the output end of the driver, and the driver is used to drive the limiting block to move in a first direction, or, the first limiting sliding block is connected with the output end of the driver, the limiting block is connected with the transmission part of the rotating member, and the driver is used to drive the limiting block to move in the first direction, wherein the first direction intersects with the second direction, the first limiting sliding block has a first position and a second position in the first limiting groove, when the first limiting sliding block is located at the first position, the rotating member is located at the first rotating position, and when the first limiting sliding block is located at the second position, the rotating member is located at the second rotating position; or, when the first limiting sliding block is located at the first position, the rotating member is located at the second rotating position, and when the first limiting sliding block is located at the second position, the rotating member is located at the first rotating position. The platform door lock further comprises a manual unlocking assembly, the manual unlocking assembly comprises a manual unlocking seat, the manual unlocking seat is movably arranged on the door lock base in the second direction, and the first limiting sliding block and / or the limiting block is located on the movement track of the manual unlocking seat.

5. The platform door lockset apparatus of claim 4, wherein: A manual limiting structure is arranged between the door lock base and the manual unlocking seat, and the manual limiting structure is used to constrain the movement track of the manual unlocking seat.

6. The platform door lockset arrangement of claim 5, wherein: The manual limiting structure comprises a second limiting groove and a second limiting sliding block slidingly arranged in the second limiting groove, the second limiting groove extends in the first direction, 7. The platform door lockset arrangement of claim 6, wherein: the second limiting groove is arranged on the manual unlocking seat, and the second limiting sliding block is arranged on the door lock base; or, the second limiting groove is arranged on the door lock base, and the second limiting sliding block is arranged on the manual unlocking seat. ​ 8. A platform door locking arrangement according to any one of claims 4-7, characterized in that: The reset member is arranged between the rotating member and the door lock base, the driver is a push-pull electromagnet, the locking and unlocking control member is used to drive the rotating member to rotate to the first rotating position, and the reset member is used to drive the rotating member to reset to the second rotating position, Or, the locking and unlocking control member is used to drive the rotating member to rotate to the second rotating position, and the reset member is used to drive the rotating member to reset to the first rotating position.

9. The platform door lockset apparatus of claim 1, wherein: The platform door lock device further comprises rotating limiting structures arranged on the door lock base, the rotating limiting structures comprising a first limiting part and oppositely arranged second and third limiting parts, The first limiting part is arranged on the rotating member, and the second and third limiting parts are arranged on the door lock base, and the second and third limiting parts are located on the movement track of the first limiting part. Or, the first limiting part is arranged on the door lock base, and the second and third limiting parts are arranged on the rotating member, and the first limiting part is located on the movement track of the second and third limiting parts.

10. The platform door lockset apparatus of claim 9, wherein: The rotating member is provided with a third limiting groove, and the first limiting part and the second limiting part are respectively opposite groove walls of the third limiting groove, the third limiting part is arranged on the door lock base and accommodated in the third limiting groove, and when the rotating member rotates, the third limiting part moves between the first limiting part and the second limiting part of the third limiting groove.

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