Sliding door unlocking device and shielding door

Abstract

The sliding door unlocking device and shielding door of the application comprises an unlocking top rod, a lock hook plate, a first elastic member, an unlocking hook and a pull rope. The unlocking top rod is movably installed in a first vertical column of a sliding door body and can move upward along the axis direction of the unlocking top rod to control unlocking of the sliding door body. The lock hook plate is arranged below the unlocking top rod in the axis direction of the unlocking top rod and abuts against the unlocking top rod for limiting. The first elastic member abuts against the lock hook plate in a pre-compressed manner to provide elastic force for pushing the unlocking top rod. The unlocking hook is rotatably installed in the first vertical column and can hook the lock hook plate to lock the lock hook plate compressing the first elastic member. The pull rope is partially arranged out of the first vertical column. One end of the pull rope in the first vertical column is in transmission connection with the unlocking hook to drive the unlocking hook to release the locking of the lock hook plate. The other end of the pull rope out of the first vertical column is fixed by a second vertical column on the other side of the sliding door body.

Description

Technical Field

[0001] This utility model belongs to the technical field of manual unlocking of shielded doors, and in particular relates to a sliding door unlocking device and a shielded door. Background Technology

[0002] Platform screen doors are typically installed on the edges of urban rail transit (such as subway and light rail) platforms. Their primary purpose is to prevent passengers from accidentally falling onto the tracks, ensuring passenger safety while waiting. They also effectively improve the comfort of the platform waiting environment and enhance the overall efficiency of train operations. Depending on their structural form, platform screen doors can be categorized into full-height enclosed and semi-height open types, but their basic working principle involves using an electric control system to achieve synchronized opening and closing with the train doors, ensuring safe and orderly passenger boarding and alighting.

[0003] Platform screen doors are typically equipped with a manual unlocking device, operated by station staff, maintenance personnel, or authorized passengers in emergencies, allowing passengers to manually open the sliding doors. Currently, existing manual unlocking devices for platform screen doors, such as those described in patent document CN215717923U, use a handle extending from a post on one side of the sliding door as the driving mechanism. While this structure meets basic operational needs, the handle's small size and inconspicuous location often make it difficult for passengers to quickly identify and operate it in emergencies, thus affecting the timeliness and emergency response effectiveness of manual unlocking. Utility Model Content

[0004] In view of this, it is necessary to provide a sliding door unlocking device and a shielding door that are easy for passengers to find and operate.

[0005] A sliding door unlocking device is installed on the sliding door body. The sliding door unlocking device includes:

[0006] An unlocking rod is movably installed in the first column on one side of the sliding door, and the unlocking rod can move along the axis of the unlocking rod to control the unlocking of the sliding door;

[0007] A locking hook plate is disposed below the unlocking rod in the axial direction of the unlocking rod and abuts against and limits the unlocking rod;

[0008] The first elastic element abuts against the locking hook plate in a pre-compressed manner, and is used to provide the locking hook plate with an elastic force to push the unlocking rod.

[0009] An unlocking hook is rotatably installed inside the first column. The unlocking hook can hook the locking plate to lock the locking plate that compresses the first elastic member.

[0010] A pull rope is partially extended through the first post. One end of the pull rope located inside the first post is connected to the unlocking hook, which is used to drive the unlocking hook to release the lock on the lock plate. The other end of the pull rope extending through the first post is fixed by the first post on the other side of the sliding door.

[0011] Understandably, the pull rope extending from the first upright of the sliding door serves as the driving mechanism. When a passenger presses down on the pull rope, it triggers the unlocking hook to release the lock plate, allowing the lock plate to push against the unlocking lever under the action of the pre-compressed first elastic element, thus achieving manual unlocking. In this structural design, the pull rope is prominently positioned and easy to operate, helping passengers quickly identify and trigger emergency operations in emergencies. In particular, it expands the range of personnel who can perform emergency operations, thereby significantly improving the reliability of the unlocking action and the overall emergency response effectiveness of the system.

[0012] In one embodiment, the locking plate includes an extending protrusion that extends along the radial direction of the unlocking top rod;

[0013] The unlocking hook includes a hook arm, and the hook arm is capable of hooking the extended protrusion to lock the hook plate.

[0014] In one embodiment, the sliding door unlocking device further includes a second elastic element that abuts against the lock hook plate in a pre-deformed manner to provide the lock hook arm with an elastic force for rotating toward the extended protrusion.

[0015] In one embodiment, the locking hook plate further includes a connecting sleeve, and the locking hook plate can be rotatably installed in the first column via the connecting sleeve;

[0016] The second elastic element is a torsion spring, which is fitted onto the connecting sleeve. The first leg of the torsion spring rests against the locking hook arm, and the second leg of the torsion spring rests against the first column.

[0017] In one embodiment, the sliding door unlocking device further includes a stop post, which is fixedly installed inside the first column, and the second leg abuts against the stop post;

[0018] The unlocking hook also includes a drive arm, and the unlocking hook can be connected to the pull rope through the drive arm. Furthermore, the drive arm can abut against the stop post to limit the rotation angle of the unlocking hook when unlocking the lock plate.

[0019] Understandably, by setting a stop to limit the rotation range of the unlocking hook and prevent it from over-rotating, this not only helps maintain the accuracy and reliability of the action, but also ensures that the unlocking hook can quickly and stably relock the hook plate after the operation is completed, thereby improving the reusability and reliability of the entire sliding door unlocking device.

[0020] In one embodiment, the sliding door unlocking device further includes a guide support member, which is fixedly installed inside the first column;

[0021] In the axial direction of the unlocking top rod, the guide support is slidably connected to the locking hook plate and abuts against the first elastic member.

[0022] In one embodiment, the guide support includes a guide post and a support plate, the guide post being disposed through the support plate and connected to the support plate, and the guide post being slidably connected to the locking hook plate;

[0023] The first elastic element is fitted onto the portion of the guide post that extends out of the support plate and abuts against the support plate.

[0024] In one embodiment, the locking hook plate includes a first plate, a second plate, and a connecting plate, wherein the connecting plate is disposed between the first plate and the second plate, and is connected to both the first plate and the second plate respectively;

[0025] One side of the first plate abuts against and limits the unlocking top rod, and the other side of the first plate abuts against the first elastic member;

[0026] The second plate is disposed in the area where the support plate is located and is slidably connected to the guide post.

[0027] In one embodiment, the sliding door unlocking device further includes an unlocking handle, the unlocking handle portion extending out of the first column;

[0028] The unlocking handle is connected to the unlocking push rod and is used to drive the unlocking push rod to move upward along the axis of the unlocking push rod.

[0029] This application also claims protection for a shielded door, including a sliding door body and the aforementioned sliding door unlocking device;

[0030] The sliding door unlocking device is installed on the sliding door body.

[0031] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0032] The sliding door unlocking device and platform screen door for which this application seeks protection use a pull rope extending from the first upright of the sliding door as a driving component. When a passenger presses down on the pull rope, it drives the unlocking hook to release the lock hook plate, allowing the lock hook plate to push against the unlocking rod under the action of a pre-compressed first elastic element, thereby achieving manual unlocking. In this structural design, the pull rope is prominently positioned and easy to operate, helping passengers to quickly identify and trigger emergency operations in emergencies, thus significantly improving the reliability of the unlocking action and the overall emergency response effect of the system. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the sliding door unlocking device provided in this application.

[0035] Figure 2 for Figure 1 Enlarged view of section A.

[0036] Reference numerals: 100, sliding door unlocking device; 10, unlocking top rod; 20, lock hook plate; 21, extension protrusion; 22, first plate; 23, second plate; 24, connecting plate; 25, bending plate; 30, first elastic element; 40, unlocking hook; 41, lock hook arm; 42, connecting sleeve; 43, drive arm; 50, pull rope; 60, guide support; 61, guide post; 62, support plate; 70, second elastic element; 71, torsion spring; 711, first support leg; 712, second support leg; 80, pivot; 90, stop post; 110, unlocking handle. Detailed Implementation

[0037] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] It should be noted that when a component is said to be "located on" another component, it can be directly located on the other component or may have an intervening component. When a component is considered to be "located on" another component, it can be directly located on the other component or may have an intervening component. When a component is considered to be "fixed to" another component, it can be directly fixed to the other component or may have an intervening component.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0040] The sliding door unlocking device 100 claimed in this application is used in a platform screen door (not shown), specifically installed on the sliding door body (not shown) of the platform screen door, for manually unlocking the sliding door body.

[0041] like Figure 1 , Figure 2 As shown, the sliding door unlocking device 100 provided in this application includes an unlocking rod 10, a lock hook plate 20, a first elastic element 30, an unlocking hook 40, and a pull rope 50. The unlocking rod 10 is movably installed inside the first column (not shown) of the sliding door body, and the unlocking rod 10 can move upward along the axial direction Z of the unlocking rod 10 to control the unlocking of the sliding door body; the lock hook plate 20 is disposed below the unlocking rod 10 in the axial direction Z of the unlocking rod 10 and abuts against the unlocking rod 10 for limiting; the first elastic element 30 abuts against the lock in a pre-compressed manner. The hook plate 20 provides an elastic force to the locking hook plate 20 to push against the unlocking rod 10. The unlocking hook 40 is rotatably installed inside the first column and can hook the locking hook plate 20 to lock the locking hook plate 20 that compresses the first elastic element 30. The pull rope 50 extends out of the first column, with one end of the pull rope 50 inside the first column being connected to the unlocking hook 40 for driving the unlocking hook 40 to release the locking hook plate 20. The other end of the pull rope 50 extending out of the first column is fixed by a second column on the other side of the sliding door. Here, the first column and the second column are column structures on two opposite sides of the sliding door in the width direction of the sliding door.

[0042] As can be seen from the above, the sliding door unlocking device 100 of this application uses a pull rope 50 extending through the first upright of the sliding door as a driving component. When the passenger presses down the pull rope 50, it will drive the unlocking hook 40 to release the lock hook plate 20, allowing the lock hook plate 20 to push the unlocking rod 10 under the action of the pre-compressed first elastic element 30, thereby realizing manual unlocking. In this structural design, the pull rope 50 is prominently positioned and easy to operate, which helps passengers to quickly identify and trigger emergency operations in emergency situations, thereby significantly improving the reliability of the unlocking action and the overall emergency response effect of the system.

[0043] It should be noted that the sliding door unlocking device 100 of this application is designed to solve how to drive the unlocking rod 10 to move upward. As for the specific structure and working principle of how the unlocking rod 10 after moving upward achieves the unlocking control of the sliding door, they all adopt the conventional methods in existing shielded doors, and will not be elaborated here.

[0044] like Figure 2 As shown, in one embodiment, the locking plate 20 includes an extending protrusion 21 that extends in the radial direction X of the unlocking push rod 10; correspondingly, the unlocking hook 40 includes a locking arm 41 that can hook the extending protrusion 21 to lock the locking plate 20 so that the locking plate 20 can remain in a state of compressing the first elastic member 30.

[0045] like Figure 1 , Figure 2 As shown, in one embodiment, the sliding door unlocking device 100 further includes a guide support 60, which is fixedly installed inside the first column, specifically at the bottom of the first column. Furthermore, in the axial direction Z of the unlocking rod 10, the guide support 60 is slidably connected to the lock hook plate 20 and abuts against the first elastic member 30. In other words, in this embodiment, the guide support 60 guides the movement of the lock hook plate 20 when it pushes against the unlocking rod 10, and also provides support for the first elastic member 30.

[0046] like Figure 1 As shown, in this embodiment, the guide support 60 includes a guide post 61 and a support plate 62. The guide post 61 passes through the support plate 62 and is connected to the support plate 62. Specifically, the support plate 62 can be fixed to the guide post 61 by welding. The guide post 61 is slidably connected to the locking hook plate 20, thereby guiding the movement of the locking hook plate 20. Furthermore, the first elastic member 30 is fitted onto the portion of the guide post 61 that extends out of the support plate 62 and abuts against the support plate 62.

[0047] like Figure 2As shown, in one embodiment, the locking hook plate 20 further includes a first plate 22, a second plate 23, and a connecting plate 24. The connecting plate 24 is disposed between the first plate 22 and the second plate 23, and is connected to both the first plate 22 and the second plate 23. Here, the connecting plate 24 is disposed at the same end of the first plate 22 and the second plate 23, while the extension protrusion 21 can be installed on the other side of the first plate 22 via a bending plate 25. Here, the first plate 22, the second plate 23, the connecting plate 24, and the bending plate 25 can be formed by bending a straight plate, while the extension protrusion 21 can be formed by stamping a portion of the bending plate 25. Of course, the extension protrusion 21 can also be set independently of the bending plate 25 and fixed to the bending plate 25 by welding.

[0048] One side of the first plate 22 abuts against the unlocking rod 10 for a limiting position, and the other side of the first plate 22 abuts against the first elastic member 30; and the second plate 23 is disposed in the area where the support plate 62 is located and is slidably connected to the guide post 61.

[0049] In one embodiment, the first elastic element 30 is configured as a compression spring. Of course, in other embodiments, the first elastic element 30 may also be configured as a rubber sleeve or other highly elastic accessories, which will not be elaborated here.

[0050] like Figure 1 , Figure 2 As shown, in one embodiment, the sliding door unlocking device 100 further includes a second elastic member 70, which abuts against the unlocking hook 40 in a pre-deformed manner to provide the hook arm 41 with an elastic force to rotate toward the extending protrusion 21. This allows the unlocking hook 40 to automatically lock the hook plate 20 under the elastic push of the second elastic member 70 while it is reset under the push of the unlocking rod 10, which is beneficial to the repeatability of the sliding door unlocking device 100.

[0051] like Figure 2As shown, in one embodiment, the unlocking hook 40 further includes a connecting sleeve 42, and the unlocking hook 40 can be rotatably installed in the sliding door body via the connecting sleeve 42. Specifically, the unlocking hook 40 can be fitted onto the rotating shaft 80 installed in the first column via the connecting sleeve 42. Furthermore, the aforementioned second elastic element 70 is provided with a torsion spring 71, which is fitted onto the connecting sleeve 42. The first leg 711 of the torsion spring 71 abuts against the locking hook arm 41 of the unlocking hook 40, and the second leg 712 abuts against the first column. That is, in this embodiment, the torsion spring 71 can provide an elastic force to the locking hook arm 41 of the unlocking hook 40 to rotate toward the extending protrusion 21. Of course, in other embodiments, the second elastic element 70 can also be a tension spring, which can be used to provide an elastic force to the locking hook arm 41 to rotate toward the extending protrusion 21; this will not be elaborated upon here.

[0052] like Figure 1 , Figure 2 As shown, the sliding door unlocking device 100 also includes a stop post 90, which is fixedly installed inside the first column, and the second leg 712 abuts against the stop post 90. That is, the first column can use the stop post to support the second leg 712 of the torsion spring 71.

[0053] Furthermore, the unlocking hook 40 in this embodiment also includes a drive arm 43, and the unlocking hook 40 can be connected to the pull rope 50 through the drive arm 43. The drive arm 43 can abut against the stop post 90 to limit the rotation angle of the unlocking hook 40 when unlocking the lock hook plate 20, so as to limit the rotation range of the unlocking hook 40 and prevent the unlocking hook 40 from over-rotating. This not only helps to maintain the accuracy and reliability of the action, but also provides a guarantee for the unlocking hook 40 to quickly and stably relock the lock hook plate 20 after the operation is completed, thereby improving the reusability and reliability of the entire sliding door unlocking device 100.

[0054] In one embodiment, the pull rope 50 is a steel wire rope. Of course, in other embodiments, the pull rope 50 may also be made of other ropes with a certain strength, such as nylon rope, which will not be elaborated here.

[0055] like Figure 1 As shown, in one embodiment, the sliding door unlocking device 100 further includes an unlocking handle 110, a portion of which extends through the first column; and the unlocking handle 110 is kinetically connected to the unlocking rod 10, used to drive the unlocking rod 10 to move upward in the axial direction Z of the unlocking rod 10. That is, passengers can manually unlock the sliding door by pressing the unlocking handle 110.

[0056] In summary, the sliding door unlocking device 100 of this application retains the original unlocking handle 110 for manual unlocking, and adds a pull rope 50 to assist manual unlocking, so that passengers can quickly identify and trigger emergency operations in emergency situations, thereby significantly improving the reliability of the unlocking action and the overall emergency response effect of the system.

[0057] In addition, this application also provides a shielding door, including a sliding door body and the aforementioned sliding door unlocking device 100, wherein the sliding door unlocking device 100 is installed on the sliding door body.

[0058] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Any appropriate changes and variations made to the above embodiments within the scope of the essential spirit of the present utility model shall fall within the scope of protection claimed by the present utility model.

Claims

1. A sliding door unlocking device, installed on the sliding door body, characterized in that, The sliding door unlocking device (100) includes: The unlocking rod (10) is movably installed in the first column on one side of the sliding door, and the unlocking rod (10) can move along the axis of the unlocking rod (10) to control the unlocking of the sliding door; The locking hook plate (20) is located below the unlocking top rod (10) in the axial direction of the unlocking top rod (10) and abuts against the unlocking top rod (10) for limiting; The first elastic element (30) abuts against the locking hook plate (20) in a pre-compressed manner, and is used to provide the locking hook plate (20) with an elastic force to push the unlocking rod (10); The unlocking hook (40) is rotatably installed inside the first column. The unlocking hook (40) can hook the locking plate (20) to lock the locking plate (20) that compresses the first elastic member (30). A pull rope (50) is partially inserted through the first column. One end of the pull rope (50) inside the first column is connected to the unlocking hook (40) to drive the unlocking hook (40) to release the lock on the lock plate (20). The other end of the pull rope (50) that extends through the first column is fixed by the first column on the other side of the sliding door.

2. The sliding door unlocking device according to claim 1, characterized in that, The locking plate (20) includes an extension protrusion (21) which extends along the radial direction of the unlocking top rod (10). The unlocking hook (40) includes a hook arm (41) and the hook arm (41) is capable of hooking the extended protrusion (21) to lock the hook plate (20).

3. The sliding door unlocking device according to claim 2, characterized in that, The sliding door unlocking device (100) further includes a second elastic element (70) that abuts against the lock hook plate (20) in a pre-deformed manner to provide the lock hook arm (41) with an elastic force to rotate toward the extension protrusion (21).

4. The sliding door unlocking device according to claim 3, characterized in that, The locking hook plate (20) further includes a connecting sleeve (42), and the locking hook plate (20) can be rotatably installed in the first column through the connecting sleeve (42); The second elastic element (70) is configured as a torsion spring (71), which is fitted onto the connecting sleeve (42). The first leg (711) of the torsion spring (71) abuts against the locking hook arm (41), and the second leg (712) of the torsion spring (71) abuts against the first column.

5. The sliding door unlocking device according to claim 4, characterized in that, The sliding door unlocking device (100) further includes a stop post (90), which is fixedly installed inside the first column, and the second support leg (712) abuts against the stop post (90); The unlocking hook (40) also includes a drive arm (43), and the unlocking hook (40) can be connected to the pull rope (50) through the drive arm (43). Furthermore, the drive arm (43) can abut against the stop post (90) to limit the rotation angle of the unlocking hook (40) when it unlocks the lock plate (20).

6. The sliding door unlocking device according to claim 1, characterized in that, The sliding door unlocking device (100) further includes a guide support (60), which is fixedly installed inside the first column; In the axial direction of the unlocking top rod (10), the guide support (60) is slidably connected to the locking hook plate (20) and abuts against the first elastic member (30).

7. The sliding door unlocking device according to claim 6, characterized in that, The guide support (60) includes a guide post (61) and a support plate (62). The guide post (61) passes through the support plate (62) and is connected to the support plate (62). The guide post (61) is slidably connected to the locking hook plate (20). The first elastic element (30) is fitted onto the portion of the guide post (61) that extends out of the support plate (62) and abuts against the support plate (62).

8. The sliding door unlocking device according to claim 7, characterized in that, The locking plate (20) includes a first plate (22), a second plate (23) and a connecting plate (24). The connecting plate (24) is disposed between the first plate (22) and the second plate (23) and is connected to the first plate (22) and the second plate (23) respectively. One side of the first plate (22) abuts against the unlocking top rod (10) for a limiting position, and the other side of the first plate (22) abuts against the first elastic member (30); The second plate (23) is disposed in the area where the support plate (62) is located and is slidably connected to the guide post (61).

9. The sliding door unlocking device according to claim 1, characterized in that, The sliding door unlocking device (100) also includes an unlocking handle (110), which extends out of the first column. The unlocking handle (110) is connected to the unlocking rod (10) for driving the unlocking rod (10) to move upward along the axis of the unlocking rod (10).

10. A shielding door, characterized in that, Includes a sliding door body and a sliding door unlocking device (100) as described in any one of claims 1 to 9. The sliding door unlocking device (100) is installed on the sliding door body.

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