Anti-pinch early warning device used before door closing of subway train

Abstract

The utility model discloses an anti-pinch early warning device before closing a door of a subway train, which relates to the technical field of anti-pinch early warning and comprises a door frame and a movable door, a movable groove is arranged in the door frame, one side of the movable groove is slidably connected with the movable door, a second movable groove is arranged at the upper end of the door frame, and the movable door is connected with the second movable groove. And one side of the second moving groove is slidably connected with a connecting rod, the lower end of the connecting rod is fixedly connected with a movable door, one side of the connecting rod is in threaded connection with a moving lead screw, and one side of the moving lead screw is fixedly connected with an output shaft of a double-shaft motor. The connecting frame and the protective plate are arranged to monitor personnel, the plug and the connector are arranged to control the pressure sensor to start and stop, the first supporting spring is arranged to enable the protective plate to extend and contract to monitor when the movable door is opened, and the double-shaft motor, the movable lead screw and the connecting rod are arranged to drive the movable door to move.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-pinch warning, in particular to an anti-pinch warning device before closing doors of a subway train. Background Art

[0002] With the rapid development of rail transit, subway transportation lines are efficient, time-accurate, and less affected by environmental factors such as weather. Therefore, they have become a common means of transportation for citizens. In the actual riding process, some passengers ignore their own safety and force their way into the subway when the subway door is about to close. Due to the crowded carriage, they may be squeezed out of the carriage or trapped at the moment the door closes, posing a safety hazard.

[0003] At present, the anti-pinch warning device before the closing of the subway train door in the prior art usually alarms after the shield door contacts an object. When in use, since the shield door needs to contact the object to alarm, the object has been clamped when the alarm is sounded, and the passengers will still be injured after being clamped. There is a problem that the anti-pinch effect cannot be improved, and when in use, the anti-pinch device is not convenient for monitoring some objects, such as paper and thin dresses. It is not convenient to monitor when the shield door is closed, and the clamped object cannot be pulled out. It has to wait until the next time it is opened, which affects the passengers and there is a problem that the clamped object cannot be taken out. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides an anti-pinch warning device before the closing of a subway train door, which solves the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] To achieve the above purpose, the utility model is implemented by the following technical solutions: comprising a door frame and a movable door, a movable groove is provided inside the door frame, a movable door is slidably connected to one side of the movable groove, a second movable groove is provided at the upper end of the door frame, a connecting rod is slidably connected to one side of the second movable groove, the movable door is fixedly connected to the lower end of the connecting rod, a movable lead screw is threadedly connected to one side of the connecting rod, an output shaft of a double-axis motor is fixedly connected to one side of the movable lead screw, one side of the double-axis motor is fixedly connected to the door frame, one side of the movable lead screw is bearing-connected to the door frame, and one side of the movable door is fixedly connected to the connecting frame;

[0008] The connection frame is slidably connected to a protective plate inside, a first slide groove is provided inside the connection frame, a slider is slidably connected to one side of the first slide groove, a protective plate is fixedly connected to one side of the slider, and a pressure sensor is fixedly connected to the inside of the connection frame;

[0009] A roller is connected to a bearing on one side of the movable door, a second slide groove is opened on one side of the movable door, a fixed plate is slidably connected to one side of the second slide groove, a roller is slidably connected to one side of the fixed plate, a movable part of an electric telescopic rod is fixedly connected to the lower end of the fixed plate, a movable door is fixedly connected to one side of the fixed part of the electric telescopic rod, and a control switch is fixedly connected to one side of the connecting frame.

[0010] Optionally, the upper end shaft of the movable door is connected to a traction wheel, one side of the traction wheel is fitted with a second movable groove, the lower end of the door frame is provided with a first movable groove, one side of the first movable groove is fitted with a support wheel, and one side shaft of the support wheel is connected to the movable door.

[0011] Optionally, a first support spring is fixedly connected to one side of the pressure sensor, a slider is slidably connected to one side of the first support spring, one side of the connecting frame is slidably connected to the movable groove, and a group of protective plates are respectively provided on both sides of the movable door.

[0012] Optionally, a connector is fixedly connected to one side of the protective plate, a plug is sleeved on one side of the connector, another protective plate is fixedly connected to one side of the plug, and the plug and the connector are respectively located on the outsides of the two protective plates.

[0013] Optionally, a third movable groove is opened on one side of the movable door, a movable plate is slidably connected to one side of the third movable groove, a sealing strip is fixedly connected to one side of the movable plate, and the third movable groove is slidably connected to one side of the sealing strip.

[0014] Optionally, a second supporting spring is fixedly connected to one side of the third movable groove, one end of the second supporting spring is fixedly connected to a movable plate, a protective frame is fixedly connected to one side of the connecting frame, a sliding plate is slidably connected to one side of the protective frame, and a control switch is provided on one side of the sliding plate.

[0015] Three beneficial effects

[0016] The utility model provides an anti-pinch warning device before closing the door of a subway train, which has the following beneficial effects:

[0017] 1. The anti-pinch warning device before the subway train closes the door monitors personnel by setting a connection frame and a protective plate, controls the start and stop of the pressure sensor by setting a plug and a joint, extends the protective plate when the movable door is opened by setting a first support spring, and contracts for monitoring, and drives the movable door to move by setting a dual-axis motor, a moving screw, and a connecting rod.

[0018] 2. The anti-pinch warning device before the subway train closes its door restricts the roller by arranging an electric telescopic rod, a fixed plate, and a second slide groove to facilitate the extraction of clamped objects. The control switch is protected by arranging a protective frame and a slide plate to prevent accidental touches. The electric telescopic rod is controlled by arranging a control switch. The gap of the movable door is sealed by arranging a third movable groove, a second supporting spring, a movable plate, and a sealing strip, so that objects can be extracted. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the utility model in front view of section 1;

[0021] Figure 3 For this utility model Figure 2 A schematic diagram of the structure with a partial enlargement at the center;

[0022] Figure 4 This is a structural schematic diagram of the utility model in the front view of section 2;

[0023] Figure 5 For this utility model Figure 4 A schematic diagram of the structure with a partial enlargement at B in the middle;

[0024] Figure 6 It is a structural schematic diagram of the left side section of the utility model;

[0025] Figure 7 It is a schematic diagram of the structure of the utility model in a top view;

[0026] Figure 8 For this utility model Figure 7 Schematic diagram of the structure with a partial enlargement at point C in the middle.

[0027] In the figure: 1. movable door; 2. supporting wheel; 3. movable groove; 4. first movable groove; 5. door frame; 6. second movable groove; 7. movable screw; 8. traction wheel; 9. connecting rod; 10. dual-axis motor; 11. connecting frame; 12. joint; 13. plug; 14. protective plate; 15. roller; 16. sealing strip; 17. movable plate; 18. first slide groove; 19. second slide groove; 20. fixed plate; 21. electric telescopic rod; 22. slider; 23. pressure sensor; 24. first supporting spring; 25. second supporting spring; 26. third movable groove; 27. protective frame; 28. slide plate; 29. ​​control switch. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0029] Example 1

[0030] See also Figures 1 to 8 The utility model provides a technical solution: an anti-pinch warning device before closing the door of a subway train, comprising a door frame 5, a movable door 1, the upper end shaft of the movable door 1 is connected to a traction wheel 8, the lower end of the door frame 5 is provided with a first movable groove 4, one side of the first movable groove 4 is attached to a support wheel 2, one side of the support wheel 2 is axially connected to the movable door 1, the interior of the door frame 5 is provided with a movable groove 3, one side of the movable groove 3 is slidably connected to the movable door 1, the upper end of the door frame 5 is provided with a second movable groove 6, one side of the traction wheel 8 is attached to the second movable groove 6, a connecting rod 9 is slidably connected to one side of the second movable groove 6, a movable door 1 is fixedly connected to the lower end of the connecting rod 9, a movable lead screw 7 is threadedly connected to one side of the connecting rod 9, an output shaft of a double-axis motor 10 is fixedly connected to one side of the movable lead screw 7, a door frame 5 is fixedly connected to one side of the double-axis motor 10, a bearing is connected to the door frame 5 on one side of the movable lead screw 7, a connecting frame 11 is fixedly connected to one side of the movable door 1, one side of the connecting frame 11 is slidably connected to the movable groove 3, and a protective plate 14 is slidably connected to the interior of the connecting frame 11 A first slide groove 18 is provided on the inner side of the connecting frame 11, a slider 22 is slidably connected to one side of the first slide groove 18, a protective plate 14 is fixedly connected to one side of the slider 22, a group of protective plates 14 are respectively provided on both sides of the movable door 1, a joint 12 is fixedly connected to one side of the protective plate 14, a plug 13 is sleeved on one side of the joint 12, another protective plate 14 is fixedly connected to one side of the plug 13, the plug 13 and the joint 12 are respectively located on the outsides of the two protective plates 14, a pressure sensor 23 is fixedly connected to the inside of the connecting frame 11, a first support spring 24 is fixedly connected to one side of the pressure sensor 23, and a slider 22 is slidably connected to one side of the first support spring 24, personnel are monitored by setting the connecting frame 11 and the protective plate 14, the pressure sensor 23 is controlled to start and stop by setting the plug 13 and the joint 12, the protective plate 14 is extended when the movable door 1 is opened by setting the first support spring 24, and the contraction is monitored by setting the dual-axis motor 10, the movable lead screw 7, and the connecting rod 9, so as to drive the movable door 1 to move.

[0031] When in use, after the subway door is opened, the dual-axis motor 10 is started to drive the movable screw 7 to rotate, thereby driving the connecting rod 9 to move in the second movable groove 6, so that the movable door 1 moves in the movable groove 3, and the movable door 1 is supported by the first movable groove 4 and the supporting wheel 2, and then the movable door 1 is pulled by the traction wheel 8, so that the movable door 1 is retracted into the movable groove 3 for people to get on and off. When closing, the movable door 1 is closed first, and the slider 22 is subjected to the elastic force of the first supporting spring 24, so that the slider 22 is moved in the first sliding groove 18, so that the protective plate 14 is moved out of the connecting frame 11, and the protective plate 14 extends out of the outer side of the movable door 1, so that the protective plate 14 is closed earlier than the movable door 1. The personnel between the closed movable doors 1 are monitored. When there is no obstruction between the movable doors 1, the joint 12 in the protective plate 14 is combined with the plug 13, the pressure sensor 23 stops running, and the slider 22 returns to the connection frame 11. When there is an obstruction between the movable doors 1, the protective plate 14 is first blocked, so that the slider 22 squeezes the first supporting spring 24. Since the joint 12 and the plug 13 are combined, the pressure sensor 23 is running, and the pressure of the first supporting spring 24 is sensed, the movable door 1 is stopped from closing, and when the protective plate 14 is blocked, it moves outward, and will not pinch people, thereby achieving the purpose of improving the anti-pinch effect.

[0032] Example 2

[0033] See also Figures 1 to 8The utility model provides a technical solution: an anti-pinch warning device before closing the door of a subway train, comprising a door frame 5, a movable door 1, the upper end shaft of the movable door 1 is connected to a traction wheel 8, the lower end of the door frame 5 is provided with a first movable groove 4, one side of the first movable groove 4 is fitted with a support wheel 2, one side of the support wheel 2 is connected to the movable door 1, one side of the movable door 1 is provided with a third movable groove 26, one side of the third movable groove 26 is slidably connected to a movable plate 17, one side of the movable plate 17 is fixedly connected to a sealing strip 16, one side of the sealing strip 16 is slidably connected to the third movable groove 26, and the third movable groove 26 is provided with a third movable groove 26. A second supporting spring 25 is fixedly connected to one side of the door frame 5, one end of the second supporting spring 25 is fixedly connected to a movable plate 17, a movable groove 3 is provided inside the door frame 5, one side of the movable groove 3 is slidably connected to a movable door 1, a second movable groove 6 is provided at the upper end of the door frame 5, a second movable groove 6 is attached to one side of the traction wheel 8, a connecting rod 9 is slidably connected to one side of the second movable groove 6, the lower end of the connecting rod 9 is fixedly connected to the movable door 1, a movable lead screw 7 is threadedly connected to one side of the connecting rod 9, one side of the movable lead screw 7 is fixedly connected to the output shaft of the dual-axis motor 10, and one side of the dual-axis motor 10 is fixedly connected The door frame 5 is connected to the door frame 5 by a bearing on one side of the movable lead screw 7, a connecting frame 11 is fixedly connected to one side of the movable door 1, a protective frame 27 is fixedly connected to one side of the connecting frame 11, a slide plate 28 is slidably connected to one side of the protective frame 27, a roller 15 is connected to one side of the movable door 1 by a bearing, a second slide groove 19 is provided on one side of the movable door 1, a fixed plate 20 is slidably connected to one side of the second slide groove 19, a roller 15 is slidably connected to one side of the fixed plate 20, a movable part of an electric telescopic rod 21 is fixedly connected to the lower end of the fixed plate 20, and one side of the fixed part of the electric telescopic rod 21 is fixedly connected to the movable door 1 A control switch 29 is fixedly connected to one side of the connecting frame 11, and a control switch 29 is provided on one side of the slide plate 28. By providing an electric telescopic rod 21, a fixed plate 20, and a second slide groove 19, the roller 15 is restricted to facilitate the extraction of the clamped object. By providing a protective frame 27 and a slide plate 28, the control switch 29 is protected to prevent accidental touch. The electric telescopic rod 21 is controlled by providing the control switch 29. By providing a third movable groove 26, a second supporting spring 25, a movable plate 17, and a sealing strip 16, the gap of the movable door 1 is sealed, and the object can be extracted.

[0034] During use, after some people walk out, some smaller objects will still be clamped. After clamping, the control switch 29 hidden in the protective frame 27 is exposed by sliding the slide plate 28, and the control switch 29 is pressed to extend the electric telescopic rod 21, pushing the fixed plate 20 to move in the second slide groove 19, so that the fixed plate 20 is separated from the drum 15, so that the drum 15 can rotate and the clamped object can be pulled out. Control switches 29 are provided on both sides of the movable door 1 for easy pressing when clamping clothes, and the gap between the movable doors 1 is blocked by the sealing strip 16, and the third movable groove 26 and the second supporting spring 25 are used to facilitate the contraction of the sealing strip 16 to pull out the clamped object, thereby achieving the purpose of taking out the clamped object.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An anti-pinch warning device before closing the door of a subway train, comprising a door frame (5) and a movable door (1), characterized in that: A movable groove (3) is provided inside the door frame (5), one side of the movable groove (3) is slidably connected to a movable door (1), a second movable groove (6) is provided at the upper end of the door frame (5), one side of the second movable groove (6) is slidably connected to a connecting rod (9), the lower end of the connecting rod (9) is fixedly connected to the movable door (1), one side of the connecting rod (9) is threadedly connected to a movable lead screw (7), one side of the movable lead screw (7) is fixedly connected to the output shaft of a double-axis motor (10), one side of the double-axis motor (10) is fixedly connected to the door frame (5), one side of the movable lead screw (7) is bearing-connected to the door frame (5), and one side of the movable door (1) is fixedly connected to a connecting frame (11); The connection frame (11) is slidably connected to a protective plate (14) inside, a first slide groove (18) is provided on the inner side of the connection frame (11), a slider (22) is slidably connected to one side of the first slide groove (18), a protective plate (14) is fixedly connected to one side of the slider (22), and a pressure sensor (23) is fixedly connected to the inside of the connection frame (11); A roller (15) is connected to a bearing on one side of the movable door (1); a second slide groove (19) is provided on one side of the movable door (1); a fixed plate (20) is slidably connected to one side of the second slide groove (19); a roller (15) is slidably connected to one side of the fixed plate (20); a movable portion of an electric telescopic rod (21) is fixedly connected to the lower end of the fixed plate (20); a fixed portion of the electric telescopic rod (21) is fixedly connected to the movable door (1); and a control switch (29) is fixedly connected to one side of the connection frame (11).

2. The anti-pinch warning device before closing the door of a subway train according to claim 1, characterized in that: The upper end shaft of the movable door (1) is connected to a traction wheel (8), one side of the traction wheel (8) is fitted with a second movable groove (6), the lower end of the door frame (5) is provided with a first movable groove (4), one side of the first movable groove (4) is fitted with a support wheel (2), and one side shaft of the support wheel (2) is connected to the movable door (1).

3. The anti-pinch warning device before closing the door of a subway train according to claim 1, characterized in that: One side of the pressure sensor (23) is fixedly connected to a first support spring (24), one side of the first support spring (24) is slidably connected to a slider (22), one side of the connection frame (11) is slidably connected to the movable groove (3), and a group of protective plates (14) are respectively provided on both sides of the movable door (1).

4. The anti-pinch warning device before closing the door of a subway train according to claim 1, characterized in that: A connector (12) is fixedly connected to one side of the protective plate (14), a plug (13) is sleeved on one side of the connector (12), another protective plate (14) is fixedly connected to one side of the plug (13), and the plug (13) and the connector (12) are respectively located on the outsides of the two protective plates (14).

5. The anti-pinch warning device before closing the door of a subway train according to claim 1, characterized in that: A third movable groove (26) is provided on one side of the movable door (1), a movable plate (17) is slidably connected to one side of the third movable groove (26), a sealing strip (16) is fixedly connected to one side of the movable plate (17), and the third movable groove (26) is slidably connected to one side of the sealing strip (16).

6. The anti-pinch warning device before closing the door of a subway train according to claim 5, characterized in that: A second supporting spring (25) is fixedly connected to one side of the third movable groove (26), one end of the second supporting spring (25) is fixedly connected to a movable plate (17), a protective frame (27) is fixedly connected to one side of the connecting frame (11), a sliding plate (28) is slidably connected to one side of the protective frame (27), and a control switch (29) is provided on one side of the sliding plate (28).

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