Emergency door opening device for shielding door

Abstract

The utility model discloses an emergency opening device for a shielding door, which comprises an ejector rod extending up and down, an operation bin, a rotating handle and a lock hole piece, a containing cavity is arranged in the operation bin, the lower end of the ejector rod extends into the containing cavity, a linkage assembly used for driving the ejector rod to move up and down is arranged in the containing cavity, and the linkage assembly is connected with the lower end of the rotating handle. The lock hole piece penetrates through the operation bin and the lower end of the rotating handle in a front-back extending mode and is fixedly connected with the lower end of the rotating handle. When the device is used, the operation is stable, and the blockage is not easy to occur; the movable parts such as the spring, the connecting rod and the sliding table are all contained in the containing cavity of the operation bin, external interference is avoided, and the device is high in integrity, simple and unabrupt in structure and small in occupied size.

Description

Technical Field

[0001] This utility model relates to the field of shielded door technology, specifically an emergency opening device for shielded doors. Background Technology

[0002] Platform screen doors are mainly installed in subway platforms and other similar locations. They use glass curtain walls to separate the platform from the subway tracks and are safety devices to prevent people from falling onto the tracks. Double doors are the most common type of platform screen door. They employ a fully enclosed structural design and have a locking device at the top of the closed position to lock the door panels on both sides. Locking devices have been disclosed in Chinese patent literature, such as the "sliding door locking device" disclosed in patent number 201320071554.1 and the "platform screen door lock" disclosed in patent number 202121393988.4, both of which use electromagnets to unlock or lock key components.

[0003] However, if the unlocking function of the platform screen door malfunctions, such as a problem with the electromagnet, it can easily prevent the door from opening, causing significant congestion and delays. In such cases, manual emergency unlocking is necessary. Manual emergency unlocking requires a complete and reliable structural design, avoiding excessive component integration and external interference. Therefore, an interference-resistant and structurally simple emergency opening device for the platform screen door needs to be designed to work in conjunction with the manual unlocking plate of the platform screen door lock to achieve manual emergency opening. Utility Model Content

[0004] In view of the above-mentioned deficiencies of the prior art, the purpose of this utility model is to provide an emergency opening device for a shielded door.

[0005] The technical solution of this utility model is: an emergency opening device for a shielded door, which includes a top rod extending vertically, an operating compartment, a rotating handle, and a locking hole. The operating compartment has a receiving cavity, the lower end of the top rod extends into the receiving cavity, and a linkage component for driving the top rod to move vertically is installed in the receiving cavity. The linkage component is connected to the lower end of the rotating handle, and the locking hole extends forward and backward through the operating compartment and the lower end of the rotating handle and is fixedly connected to the lower end of the rotating handle.

[0006] Furthermore, the linkage assembly includes a spring, a slide, and a connecting rod. The slide is fixedly connected to the lower end of the push rod, the upper end of the connecting rod is hinged to the lower end of the push rod, the lower end of the connecting rod is hinged to the lower end of the rotating handle, and the spring is locked between the upper inner wall of the accommodating cavity and the top of the slide.

[0007] Furthermore, the accommodating cavity includes an upper cavity and a lower cavity distributed vertically. The slider is locked in the upper cavity and slides vertically with the upper cavity. The lower cavity has an opening on one side for the lower end of the rotating handle to extend into.

[0008] Furthermore, the operating chamber includes a first shell and a second shell joined together. The inner wall of the second shell has a vertically extending groove, and one end of the slide table is provided with a slider. The slider is engaged with the groove and slides vertically with the groove.

[0009] Furthermore, there are two sliders and two slides, with the two sliders located on the left and right sides of one end of the slide table.

[0010] Furthermore, the locking hole is rotatably connected to the side wall of the operating compartment.

[0011] Furthermore, the lower end of the rotating handle has a square hole, and one end of the locking hole has a square platform. After the square platform is inserted into the square hole, it is fixedly connected to the rotating handle.

[0012] The beneficial effects of using the emergency opening device for the shielded door provided by this utility model are as follows: after rotating the rotating handle, the rotating handle drives the linkage component to move, and the linkage component drives the top rod to move. This setting is conducive to the stable operation of the top rod and is not prone to jamming. The moving parts such as springs, connecting rods, and slides are all housed in the accommodating cavity of the operating compartment, avoiding external interference. The device has strong integrity, simple and unobtrusive structure, and occupies a small volume. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a partial structural schematic diagram of the present invention;

[0015] Figure 3 These are schematic diagrams of the operating compartment of this utility model.

[0016] Figure 4 This is a schematic diagram of the installation of the rotating handle and locking hole of this utility model.

[0017] In the figure: 1—top rod, 2—operating chamber, 21—accommodating cavity, 211—upper cavity, 212—lower cavity, 22—first housing, 23—second housing, 231—slide groove, 3—rotating handle, 31—square hole, 4—locking hole, 41—square platform, 42—keyhole, 5—spring, 6—slide table, 61—slider, 7—connecting rod. Detailed Implementation

[0018] To provide a more intuitive and complete understanding of the technical solution of this utility model, the following non-limiting features are described in conjunction with the accompanying drawings:

[0019] like Figure 1 — Figure 4As shown, the emergency opening device for the shielded door includes a top rod 1 extending vertically, an operating chamber 2, a rotating handle 3, and a locking hole 4. The operating chamber 2 has a receiving cavity 21. The lower end of the top rod 1 extends into the receiving cavity 21. A linkage assembly for driving the top rod 1 to move vertically is installed in the receiving cavity 21. The linkage assembly is connected to the lower end of the rotating handle 3. The locking hole 4 extends forward and backward through the operating chamber 2 and the lower end of the rotating handle 3 and is fixedly connected to the lower end of the rotating handle 3. The locking hole 4 is rotatably connected to the side wall of the operating chamber 2.

[0020] like Figure 2 As shown, the linkage assembly includes a spring 5, a slide 6, and a connecting rod 7. The spring 5 extends vertically and is fitted around the lower end of the push rod 1. The slide 6 is fixedly connected to the lower end of the push rod 1. The upper end of the connecting rod 7 is hinged to the lower end of the push rod 1, and the lower end of the connecting rod 7 is hinged to the lower end of the rotating handle 3. The spring 5 is engaged between the upper inner wall of the accommodating cavity 21 and the top of the slide 6. When the slide 6 moves upward, the spring 5 is compressed.

[0021] like Figure 2 , Figure 3 As shown, to allow the slide table 6 to move smoothly up and down, the accommodating cavity 21 includes an upper cavity 211 and a lower cavity 212 distributed vertically. The slider 61 is engaged in the upper cavity 211 and slides vertically with it. The lower cavity 212 has an opening on one side for the lower end of the rotating handle 3 to extend into. The operating chamber 2 includes a first housing 22 and a second housing 23 joined together. The inner wall of the second housing 23 has a vertically extending groove 231. A slider 61 protrudes from one end of the slide table 6, and the slider 61 is engaged in the groove 231 and slides vertically with it. There are two sliders 61 and two grooves 231, located on the left and right sides of one end of the slide table 6.

[0022] like Figure 4 As shown, in order to fix the rotating handle 3 and the locking hole 4, the lower end of the rotating handle 3 has a square hole 31, and one end of the locking hole 4 has a square platform 41. The square platform 41 is inserted into the square hole and then fixedly connected to the rotating handle 3 by screws.

[0023] One way to use this utility model is as follows: Figure 2 As shown, when the upper end of the rotating handle 3 is pinched, rotating the handle 3 clockwise causes the lower end of the rotating handle 3 to tilt upwards, causing the connecting rod 7 to move upwards. The connecting rod 7 then causes the slide 6 to move upwards, which in turn causes the top rod 1 to move upwards, compressing the spring 5. After releasing the handle, the slide 6 can be reset by the elastic force of the spring 5, causing the top rod 1 and the rotating handle 3 to also reset. After the top rod 1 moves upwards, it can push the manual unlocking plate (not shown in the figure) of the shielded door lock upwards, thereby realizing the manual emergency door opening operation.

[0024] Another way to use this utility model is as follows: insert a key (not shown in the figure) into the keyhole 42 of the lock hole 4, turn the key, the key drives the lock hole 4 to rotate, the lock hole 4 drives the rotating handle 3 to rotate, thereby controlling the top rod 1 to move up and down.

[0025] Rotating handle 3 can drive the linkage component to move, and the linkage component drives the push rod 1 to move. This arrangement is conducive to the stable operation of the push rod 1 and is less prone to jamming. The moving parts such as spring 5, connecting rod 7, and slide 6 are all housed in the receiving cavity 21 of the operating chamber 2, avoiding external interference. The device has strong integrity, simple and unobtrusive structure, and occupies a small volume.

[0026] Of course, the above are only preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model. Any simple modifications and equivalent structural changes made based on the contents of the present utility model specification and drawings should also be included within the patent protection scope of the present utility model.

Claims

1. An emergency opening device for a platform screen door, comprising a vertically extending top rod, characterized in that: It also includes an operating chamber, a rotating handle, and a locking hole. The operating chamber has a receiving cavity, and the lower end of the push rod extends into the receiving cavity. A linkage assembly for driving the push rod to move up and down is installed in the receiving cavity. The linkage assembly is connected to the lower end of the rotating handle. The locking hole extends forward and backward through the operating chamber and the lower end of the rotating handle and is fixedly connected to the lower end of the rotating handle.

2. The emergency opening device for a platform screen door according to claim 1, characterized in that: The linkage assembly includes a spring, a slide, and a connecting rod. The slide is fixedly connected to the lower end of the push rod, the upper end of the connecting rod is hinged to the lower end of the push rod, and the lower end of the connecting rod is hinged to the lower end of the rotating handle. The spring is locked between the upper inner wall of the accommodating cavity and the top of the slide.

3. The emergency opening device for a platform screen door according to claim 2, characterized in that: The accommodating cavity includes an upper cavity and a lower cavity distributed vertically. The slider is locked in the upper cavity and slides vertically with the upper cavity. The lower cavity has an opening on one side for the lower end of the rotating handle to extend into.

4. The emergency opening device for a platform screen door according to claim 2, characterized in that: The operating chamber includes a first shell and a second shell that are spliced ​​together. The inner wall of the second shell has a vertically extending groove. One end of the slide table has a slider that is engaged with the groove and slides vertically with the groove.

5. The emergency opening device for a platform screen door according to claim 4, characterized in that: There are two sliders and two slides, with the two sliders located on the left and right sides of one end of the slide table.

6. The emergency opening device for a platform screen door according to claim 1, characterized in that: The locking hole is rotatably connected to the side wall of the operating compartment.

7. The emergency opening device for a platform screen door according to claim 1, characterized in that: The lower end of the rotating handle has a square hole, and one end of the locking hole has a square platform. The square platform is inserted into the square hole and then fixedly connected to the rotating handle.

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