Lift car door reopening protection device

Abstract

The utility model belongs to the technical field of elevator cars, and particularly relates to an elevator car door reopening protection device which comprises a car door body, a control module used for controlling opening and closing of the car door body and an alarm used for warning, a top cross beam is arranged above the car door body, a door blade body and a door lock are arranged on the top cross beam, and the door blade body and the door lock are arranged on the top cross beam. The top cross beam is provided with a counter-lock protection assembly corresponding to the door lock, and the counter-lock protection assembly comprises a positioning seat, a square counter-lock frame and a movable block; if a fault occurs, the compartment door body can be controlled to be opened through the control module, meanwhile, the driving rod can drive the movable block to move, and when the first distance sensor is opposite to the door blade body and the door blade body is separated from the door blade body and is opposite to the door lock, the distance is fed back through the second distance sensor, so that the distance between the door blade body and the door lock is controlled; and if the distance is large and behaviors are prone to occurring, the alarm can be directly used for warning, so that personnel or maintenance personnel can know the behaviors in time, and the use of the elevator is protected.

Description

Technical Field

[0001] The utility model belongs to the technical field of elevator cars, and particularly relates to an elevator car door reopening protection device. Background Art

[0002] An elevator is a vertical lift equipped with a box-shaped cabin, called a car. It is a box-shaped space used by elevators to carry and transport people and materials. The car is generally composed of major components such as the car bottom, car walls, car roof, and car doors. The opening and closing of the elevator floor doors are achieved by the door-opening blades installed on the car doors. Each floor door is equipped with a door lock. After the floor door is closed, the mechanical lock hook of the door lock engages, and at the same time, the electrical interlocking contacts of the floor door and the car door are closed, and the elevator control circuit is connected. Only then can the elevator start running. The elevator floor door has a fire protection function in the building and is used to divide the fire partition. The car door safety switch can ensure that the elevator cannot operate normally if the door is not safely closed in place or locked. The distance between the unhooking roller of the hall door lock and the blade of the door knife is between 6-8mm. If the gap between the synchronous door knife and the door is too large, the door cannot be closed. When the main contact is engaged, the lock hook should be engaged 7mm.

[0003] When an elevator breaks down, the car door automatically closes and automatically opens after maintenance. During the maintenance process, it is often determined by measurement or observation that if there is an error in the distance between the unhooking roller of the hall door lock and the blade of the door knife, it will easily affect the use. Utility Model Content

[0004] The utility model provides an elevator car door reopening protection device, which has the feature of controlling the distance between the door blade body and the door lock. If the distance is large and behavior is likely to occur, an alarm can be directly used to warn personnel or maintenance personnel in time to protect the use of the elevator.

[0005] The utility model provides the following technical solutions: a device for reopening the door of an elevator car, comprising a car door body, a control module for controlling the opening and closing of the car door body, and an alarm for warning; a top crossbeam is provided above the car door body, a door blade body and a door lock are provided on the top crossbeam, a locking protection assembly corresponding to the door lock is provided on the top crossbeam, the locking protection assembly comprises a positioning seat, a square door frame and a movable block, a first distance sensor opposite to the door blade body is fixedly connected to the front side of the movable block, a second distance sensor opposite to the movable block is fixedly installed in the square door frame, a driving rod for driving the movable block to move is provided on the square door frame, and the driving rod is signal-connected to the control module.

[0006] The positioning seat is fixedly connected to the top crossbeam, and a fixed plugboard is inserted into the positioning seat.

[0007] Wherein, the square door frame is fixedly connected to the fixed plug plate, and the positioning seat is provided with a pin for limiting the position of the fixed plug plate.

[0008] Wherein, an outer limiting frame is fixedly connected inside the square door frame, and the movable block is slidably connected inside the outer limiting frame.

[0009] Wherein, after the compartment door body is opened, the driving rod is started, and the data collected by the first distance sensor and the second distance sensor are fed back to the maintenance personnel.

[0010] Wherein, a comparison mark corresponding to the door lock is provided on the top crossbeam, and a comparison block corresponding to the comparison mark is provided on the door body.

[0011] Among them, when the compartment door body is opened, the first distance sensor and the second distance sensor feed back the distance between the door blade body and the door lock to protect the compartment door body in a closed state.

[0012] The beneficial effects of the utility model are:

[0013] The locking protection components include a positioning seat, a square door frame and a movable block. If a fault occurs, the control module can be used to control the opening of the car door, and the driving rod can be used to drive the movable block to move. The first distance sensor is relative to the door blade body. When the door blade body is away from the door lock, the distance is fed back through the second distance sensor to control the distance between the door blade body and the door lock. If the distance is large and behavior is likely to occur, an alarm can be used directly to warn personnel or maintenance personnel so that they can be informed in time to protect the use of the elevator.

[0014] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the lock protection component in the present utility model;

[0017] Figure 3 This is a schematic structural diagram of the square door frame in the utility model;

[0018] Figure 4 It is a structural diagram of the movable block in the utility model;

[0019] In the figure: 1. Carriage door body; 11. Top crossbeam; 12. Door blade body; 13. Door lock; 2. Lock protection assembly; 21. Positioning seat; 22. Fixed plug plate; 23. Square door frame; 24. Movable block; 241. First distance sensor; 25. Second distance sensor; 26. Outer limit frame; 27. Drive rod. DETAILED DESCRIPTION

[0020] See also Figure 1-Figure 4 The utility model provides the following technical solutions: it includes a compartment door body 1, a control module for controlling the opening and closing of the compartment door body 1, and an alarm for warning. A top crossbeam 11 is provided above the compartment door body 1, and a door blade body 12 and a door lock 13 are provided on the top crossbeam 11. A lock protection component 2 corresponding to the door lock 13 is provided on the top crossbeam 11. The lock protection component 2 includes a positioning seat 21, a square door frame 23 and a movable block 24. The front side of the movable block 24 is fixedly connected with a first distance sensor 241 opposite to the door blade body 12, and a second distance sensor 25 opposite to the movable block 24 is fixedly installed in the square door frame 23. A drive rod 27 for driving the movable block 24 to move is provided on the square door frame 23, and the drive rod 27 is signal-connected to the control module.

[0021] In this embodiment: a top crossbeam 11 is provided above the door body 1, and a door blade body 12 and a door lock 13 are provided on the top crossbeam 11. When the door body 1 is opened, the door blade body 12 leaves the door lock 13. When the door body 1 is closed, the door blade body 12 is stuck in the door lock 13. The locking protection component 2 provided includes a positioning seat 21, a square door frame 23 and a movable block 24. The front side of the movable block 24 is fixedly connected with a first distance sensor 241 opposite to the door blade body 12. A second distance sensor 25 opposite to the movable block 24 is fixedly installed in the square door frame 23. After the door body 1 is opened, the driving rod 27 is started to feed back the data collected by the first distance sensor 241 and the second distance sensor 25 to the maintenance personnel. The first distance sensor 241 is located at the connection between the door blade body 12 and the door lock 13. If an accident occurs, the control module can be used to control the car door body 1 to open, and the driving rod 27 can be used to drive the movable block 24 to move. The movable block 24 moves in the outer limit frame 26, and the first distance sensor 241 is opposite to the door blade body 12. When the door blade body 12 is away from the door lock 13, the first distance sensor 241 passes between the door blade body 12 and the door lock 13. The detected distance becomes larger, which is the distance between the door blade body 12 and the door lock 13. The movement distance can be detected by the second distance sensor 25 for comparison, and the distance is fed back by the second distance sensor 25 to control the distance between the door blade body 12 and the door lock 13. If the distance is large and behavior is likely to occur, an alarm can be used directly to warn personnel or maintenance personnel so that they can be informed in time to protect the use of the elevator.

[0022] The positioning seat 21 is fixedly connected to the top crossbeam 11, a fixed plug plate 22 is inserted into the positioning seat 21, the square door frame 23 is fixedly connected to the fixed plug plate 22, and a pin for limiting the position of the fixed plug plate 22 is provided on the positioning seat 21; the positioning seat 21 locates the use position of the outer limit frame 26. When disassembling, the pin can be pulled out to release the outer limit frame 26.

[0023] An outer limiting frame 26 is fixedly connected to the inner side of the square door frame 23, and the movable block 24 is slidably connected to the outer limiting frame 26; the outer limiting frame 26 positions the moving position of the movable block 24, so that the distance sensor can be used stably.

[0024] A reference mark corresponding to the door lock 13 is provided on the top crossbeam 11, and a reference block corresponding to the reference mark is provided on the compartment door body 1; if a fault occurs, the position of the door blade body 12 and the door lock 13 can be analyzed by comparing the positions of the reference mark and the reference block, which is beneficial for the staff to proceed with their work.

[0025] The working principle and use process of the utility model are as follows: when the compartment door body 1 is opened, the door blade body 12 leaves the door lock 13; when the compartment door body 1 is closed, the door blade body 12 is stuck in the door lock 13; the front side of the movable block 24 is fixedly connected with a first distance sensor 241 opposite to the door blade body 12; a second distance sensor 25 opposite to the movable block 24 is fixedly installed in the square door frame 23; after the compartment door body 1 is opened, the driving rod 27 is started to feed back the data collected by the first distance sensor 241 and the second distance sensor 25 to the maintenance personnel; the first distance sensor 241 is located at the connection between the door blade body 12 and the door lock 13; if an accident occurs, the compartment door body 1 can be controlled to open through the control module; and at the same time, So that the driving rod 27 drives the movable block 24 to move, and the movable block 24 moves in the outer limit frame 26. The first distance sensor 241 is opposite to the door blade body 12. When the door blade body 12 is away from the door lock 13, the first distance sensor 241 passes between the door blade body 12 and the door lock 13. The detected distance becomes larger, that is, the distance between the door blade body 12 and the door lock 13. The movement distance can be detected by the second distance sensor 25 for comparison. The distance is fed back by the second distance sensor 25, so as to control the distance between the door blade body 12 and the door lock 13. If the distance is large and behavior is likely to occur, an alarm can be directly used to warn personnel or maintenance personnel so that they can be informed in time to protect the use of the elevator.

Claims

1. An elevator car door reopening protection device, comprising a car door body (1), a control module for controlling the opening and closing of the car door body (1), and an alarm for warning, wherein a top crossbeam (11) is provided above the car door body (1), and a door blade body (12) and a door lock (13) are provided on the top crossbeam (11), characterized in that: The top crossbeam (11) is provided with a locking protection assembly (2) corresponding to the door lock (13), the locking protection assembly (2) comprising a positioning seat (21), a square door frame (23) and a movable block (24), the front side of the movable block (24) being fixedly connected with a first distance sensor (241) opposite to the door blade body (12), the inside of the square door frame (23) being fixedly installed with a second distance sensor (25) opposite to the movable block (24), the square door frame (23) being provided with a driving rod (27) for driving the movable block (24) to move, the driving rod (27) being signal-connected to a control module.

2. The elevator car door reopening protection device according to claim 1, characterized in that: The positioning seat (21) is fixedly connected to the top crossbeam (11), and a fixed plugboard (22) is inserted into the positioning seat (21).

3. The elevator car door reopening protection device according to claim 2, characterized in that: The square door frame (23) is fixedly connected to the fixed plugboard (22), and the positioning seat (21) is provided with a latch for limiting the position of the fixed plugboard (22).

4. The elevator car door reopening protection device according to claim 1, characterized in that: An outer limiting frame (26) is fixedly connected inside the square door frame (23), and the movable block (24) is slidably connected inside the outer limiting frame (26).

5. The elevator car door reopening protection device according to claim 1, characterized in that: After the compartment door body (1) is opened, the driving rod (27) is activated to feed back the data collected by the first distance sensor (241) and the second distance sensor (25) to maintenance personnel.

6. The elevator car door reopening protection device according to claim 1, characterized in that: A comparison mark corresponding to the door lock (13) is provided on the top crossbeam (11), and a comparison block corresponding to the comparison mark is provided on the compartment door body (1).

7. The elevator car door reopening protection device according to claim 1, characterized in that: When the compartment door body (1) is opened, the first distance sensor (241) and the second distance sensor (25) feed back the distance between the door blade body (12) and the door lock (13), thereby protecting the compartment door body (1) in a closed state.

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