Subway platform shielding door with anti-pinch function

Abstract

The utility model discloses a subway platform shielding door with an anti-pinch function, which belongs to the field of shielding doors and comprises a fixed door, and first glass is mounted on the fixed door. Through the arranged buffering anti-pinch structure, in the shielding door closing process, after a rubber protection plate on a movable plate makes contact with a clamped object, the rubber protection plate can move in a movable cavity and compress a buffering reset spring, and along with compression, a sliding connecting plate moves in the direction of an electromagnet along a sliding rail; the distance between the sliding connecting plate and the electromagnet is decreased, the magnetic attraction acting force is increased, when the distance is smaller than the critical range of the magnetic attraction acting force, the sliding connecting plate is instantaneously attracted to the electromagnet under the electromagnetic effect, and therefore the movable plate can drive the rubber protection plate to be rapidly recycled for receding, a clamped object can be protected as much as possible, and the anti-pinch function is achieved. When the shielding door is in a normal state, the electromagnet does not run any more, and the movable plate resets under the action of the buffer reset spring to achieve the shielding and isolating effects.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of shielding door, especially a subway platform shielding door with anti-pinch function. BACKGROUND

[0002] The subway platform shielding door is a comprehensive door system integrating building, machinery, electronics, signal, control, decoration and other disciplines, which is installed at the edge of the subway station platform to separate the platform from the train operation area and is opened through the control system. In order to improve the safety of the subway platform shielding door, an anti-pinch function is usually provided on the shielding door to prevent people or objects from being pinched by the shielding door.

[0003] In the existing shielding door, the infrared sensing method is usually used for anti-pinch. When the infrared sensor detects an object, a feedback signal is fed back, and the shielding door is no longer closed but opened. In some shielding doors, a mechanical anti-pinch method is used, in which a rubber strip is arranged at the contact part of the two shielding doors, and the anti-pinch is realized by setting a door plate that can be elastically recovered. However, in the shielding door using the mechanical anti-pinch method, the elastic recovery needs to rely on the reaction force of the pinched object itself under the elastic force in the process of realizing anti-pinch by elastic recovery, and the pinched object or person will still be subjected to a considerable force, which has a risk of injury and the use effect is general. SUMMARY

[0004] The main purpose of the utility model is to provide a subway platform shielding door with anti-pinch function, which can effectively solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0006] A subway platform shielding door with anti-pinch function, comprising a fixed door, a first glass is installed on the fixed door, a movable door is installed on the fixed door, and a movable cavity is arranged on the movable door, and a buffer anti-pinch structure is arranged in the movable cavity on the movable door.

[0007] Preferably, the movable door is slidingly connected to the fixed door, and an observation port is arranged on the movable door, and a second glass is fixed in the observation port on the movable door.

[0008] Preferably, an indicator light is fixedly arranged on the top of the fixed door, and the indicator light is symmetrically arranged on the top of the fixed door.

[0009] Preferably, the buffer anti-pinch structure comprises a mounting seat, an electromagnet, a sliding rail, a movable plate, a sliding connection plate, a rubber protection plate, a waist-shaped hole, a limiting column, a connecting cylinder and a buffer reset spring, the electromagnet is arranged on the mounting seat, and the mounting seat is fixedly installed in the movable cavity on the movable door, and the sliding rail is fixed in the movable cavity on the movable door.

[0010] Preferably, the movable plate is fixedly connected with a sliding connecting plate, one end of the movable plate is located in the movable cavity, the sliding connecting plate is slidingly connected with the slide rail, and the sliding connecting plate is provided with a magnetic plate at the end thereof.

[0011] Preferably, the waist-shaped hole is arranged at the top of the movable door, the limiting column is located in the waist-shaped hole, the lower end of the limiting column is threadedly connected with the movable plate, the connecting cylinder is arranged on the movable cavity and the movable plate, and the buffer reset spring is sleeved on the connecting cylinder.

[0012] Compared with the prior art, the subway platform screen door with the anti-pinch function has the following beneficial effects: the buffer anti-pinch structure is arranged, when the rubber protection plate on the movable plate contacts the clamped object in the process that the screen door is closed, the movable plate can move in the movable cavity and compress the buffer reset spring, along with the compression, the sliding connecting plate moves along the slide rail to the direction of the electromagnet, the distance between the sliding connecting plate and the electromagnet becomes smaller, the magnetic attraction force becomes larger, when the distance is smaller than the critical range of the magnetic attraction force, under the electromagnetic effect, the sliding connecting plate is instantaneously adsorbed to the electromagnet, so that the movable plate with the rubber protection plate is quickly recovered and gives way, the clamped object can be protected as much as possible, the anti-pinch function is realized, when the screen door is in the normal state, the electromagnet no longer operates, under the action of the buffer reset spring, the movable plate is reset to play the shielding and isolation effect. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a whole structure schematic view of the utility model;

[0014] Figure 2 It is a structure schematic view of the movable door of the utility model;

[0015] Figure 3 It is a structure schematic view of the buffer anti-pinch structure of the utility model;

[0016] Figure 4 It is the utility model Figure 3 It is an enlarged view of A in the utility model.

[0017] In the drawing: 1, fixed door; 2, first glass; 3, movable door; 4, observation port; 5, movable cavity; 6, buffer anti-pinch structure; 601, mounting seat; 602, electromagnet; 603, slide rail; 604, movable plate; 605, sliding connecting plate; 606, rubber protection plate; 607, waist-shaped hole; 608, limiting column; 609, connecting cylinder; 610, buffer reset spring; 7, second glass; 8, indicator light. DETAILED DESCRIPTION

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] like Figures 1-4 As shown, a subway platform screen door with anti-pinch function includes a fixed door 1, a first glass panel 2 installed on the fixed door 1, a movable door 3 installed on the fixed door 1, and a movable cavity 5 provided on the movable door 3. A buffer anti-pinch structure 6 is provided in the movable cavity 5 of the movable door 3. The movable door 3 is slidably connected to the fixed door 1, and an observation port 4 is provided on the movable door 3. A second glass panel 7 is fixed in the observation port 4 of the movable door 3. Indicator lights 8 are fixedly installed on the top of the fixed door 1, and the indicator lights 8 are symmetrically arranged on the top of the fixed door 1.

[0020] When used in subway platform screen doors, the fixed door 1 is installed on the subway platform, and the movable door 3 is installed on the fixed door 1 and connected to the internal drive structure of the fixed door 1. During use, the track area can be observed through the first glass 2 on the fixed door 1 and the second glass 7 inside the observation port 4 on the movable door 3. After the subway enters the platform, before the subway doors and platform screen doors open, the indicator light 8 flashes to remind relevant personnel. The indicator light 8 will also flash before the platform screen doors close. After the platform screen doors open, personnel can get on and off the train. During the closing process of the platform screen doors, the movable door 3 moves and closes on the fixed door 1, and adjacent movable doors 3 close together. If there is an object between two movable doors 3, the buffer anti-pinch structure 6 runs and retracts quickly inside the movable cavity 5, thereby achieving the anti-pinch effect.

[0021] According to the above implementation scheme, the buffer anti-pinch structure 6 includes a mounting base 601, an electromagnet 602, a slide rail 603, a movable plate 604, a sliding connecting plate 605, a rubber protective plate 606, a slotted hole 607, a limiting post 608, a connecting cylinder 609, and a buffer return spring 610. The electromagnet 602 is mounted on the mounting base 601, and the mounting base 601 is fixedly mounted in the movable cavity 5 on the movable door 3. The slide rail 603 is fixedly mounted in the movable cavity 5 on the movable door 3. The movable plate 604 is fixedly connected to the sliding connecting plate 605, and one end of the movable plate 604 is located in the movable cavity 5. The sliding connecting plate 605 is slidably connected to the slide rail 603, and a magnetic suction plate is provided at the end of the sliding connecting plate 605. The rubber protective plate 606 is fixed to the outside of the movable plate 604. A waist-shaped hole 607 is opened at the top of the movable door 3. A limiting post 608 is located in the waist-shaped hole 607, and the lower end of the limiting post 608 is threaded to the movable plate 604. A connecting cylinder 609 is installed on the movable cavity 5 and the movable plate 604. A buffer return spring 610 is sleeved on the connecting cylinder 609.

[0022] In the process of using the buffer anti-pinch structure 6, in the case of normally closing the shielding door, the electromagnet 602 on the mounting seat 601 is powered to form magnetic attraction. Due to the elastic action of the buffer reset spring 610 on the connecting cylinder 609, the magnetic attraction force of the electromagnet 602 on the magnetic attraction plate at the end of the sliding connecting plate 605 is less than the elastic force of the buffer reset spring 610. The movable door 3 normally moves with the buffer anti-pinch structure 6 to close. When there is an object between the movable door 3, the rubber protection plate 606 contacts the object to form the first buffer protection, and is limited to move with the movable plate 604 inside the movable cavity 5. In this process, the sliding connecting plate 605 moves along the slide rail 603 to approach the electromagnet 602, the distance between the electromagnet 602 and the magnetic attraction plate at the end of the sliding connecting plate 605 becomes smaller, and the magnetic attraction force becomes larger. At the same time, the buffer reset spring 610 at the connecting cylinder 609 is compressed and has an elastic force. When the magnetic attraction force is greater than the elastic force, the sliding connecting plate 605 instantaneously moves quickly in the direction of the electromagnet 602, thereby quickly recovering the movable plate 604 and the rubber protection plate 606 to give way, which can effectively protect the integrity of the clamped object and achieve good anti-pinch effect. When the shielding door is closed, the electromagnet 602 is powered off and no longer operates. At this time, the movable plate 604 is only subjected to the elastic force, and under the action of the buffer reset spring 610, the movable plate 604 and the rubber protection plate 606 move outward and reset. In this process, the limiting column 608 moves in the waist-shaped hole 607 to prevent the movable plate 604 from falling off. After the movable plate 604 is reset, it can be normally used.

[0023] It should be noted that by setting the buffer anti-pinch structure 6, when the rubber protection plate 606 on the movable plate 604 contacts the clamped object during the closing of the shielding door, the movable plate 604 can move in the movable cavity 5 and compress the buffer reset spring 610. With the compression, the sliding connecting plate 605 moves along the slide rail 603 in the direction of the electromagnet 602, the distance between the sliding connecting plate 605 and the electromagnet 602 becomes smaller, and the magnetic attraction force becomes larger. When the distance is less than the critical range of the magnetic attraction force, under the action of the electromagnet, the sliding connecting plate 605 is instantaneously attracted to the electromagnet 602, thereby quickly recovering the movable plate 604 and the rubber protection plate 606 to give way, which can protect the clamped object as much as possible and achieve the anti-pinch function. When the shielding door is in a normal state, the electromagnet 602 no longer operates, and under the action of the buffer reset spring 610, the movable plate 604 resets to play a shielding and isolation role.

[0024] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A subway platform screen door with anti-pinch function, comprising a fixed door (1), a first glass (2) is installed on the fixed door (1), characterized in that: The fixed door (1) is provided with a movable door (3), and the movable door (3) is provided with a movable cavity (5), and the movable cavity (5) of the movable door (3) is provided with a buffer anti-pinch structure (6), the buffer anti-pinch structure (6) comprises a mounting seat (601), an electromagnet (602), a sliding rail (603), a movable plate (604), a sliding connecting plate (605), a rubber protection plate (606), a waist-shaped hole (607), a limiting column (608), a connecting cylinder (609) and a buffer reset spring (610), the electromagnet (602) is arranged on the mounting seat (601), and the mounting seat (601) is fixedly installed in the movable cavity (5) on the movable door (3), the sliding rail (603) is fixed in the movable cavity (5) on the movable door (3), the movable plate (604) is fixedly connected with the sliding connecting plate (605), and one end of the movable plate (604) is located in the movable cavity (5), the sliding connecting plate (605) is slidably connected on the sliding rail (603), and the end of the sliding connecting plate (605) is provided with a magnetic plate, the rubber protection plate (606) is fixed outside the movable plate (604), the waist-shaped hole (607) is formed in the top of the movable door (3), the limiting column (608) is located in the waist-shaped hole (607), and the lower end of the limiting column (608) is threadedly connected on the movable plate (604), the connecting cylinder (609) is installed on the movable cavity (5) and the movable plate (604), and the buffer reset spring (610) is sleeved on the connecting cylinder (609).

2. The platform screen door with anti-pinch function according to claim 1, characterized in that: The movable door (3) is slidably connected on the fixed door (1), and the movable door (3) is provided with an observation port (4), and the observation port (4) of the movable door (3) is fixedly provided with a second glass (7).

3. The platform screen door with anti-pinch function according to claim 2, characterized in that: The top of the fixed door (1) is fixedly provided with an indicating lamp (8), and the indicating lamp (8) is symmetrically arranged on the top of the fixed door (1).

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