An elevator door gap measurement and detection device capable of timely detecting faults

Abstract

The present invention relates to the technical field of elevator door leaf, and discloses an elevator door leaf gap measurement and detection device that can detect faults in a timely manner, comprising a door frame, a door leaf, and a car. A pressure sensor is fixedly installed at the end of the door frame near the door leaf, and a telescopic rod is fixedly installed at the output end of the motor. A protrusion is fixedly installed on the surface of the output end of the telescopic rod, and the protrusion abuts against the pressure sensor. The motor is started by a controller, and the output end of the motor drives the telescopic rod to extend. The output end of the telescopic rod gradually approaches and abuts against the door leaf. When the gap between the door frame and the door leaf is greater than 6mm, the protrusion will be squeezed on the surface of the pressure sensor, and the pressure sensor will then transmit the pressure signal to the controller. The alarm in the controller sounds an alarm, and the controller controls the motor output end to rotate, driving the telescopic rod to retract. According to the measurement results, the door leaf and door frame of the elevator can be further inspected and maintained through the inspection door. Thus, the gap detection effect is achieved accurately and quickly.

Description

Technical Field

[0001] The present invention relates to the technical field of elevator door panels, and in particular to an elevator door panel gap measuring and detecting device capable of timely detecting faults. Background Art

[0002] The safe operation of an elevator is closely related to the size of the gap between the elevator door panels. A tight elevator door panel is a prerequisite for ensuring the safe operation of the elevator and improving the elevator's transportation efficiency. The traditional detection method is for inspectors to visually inspect or measure with a ruler. In reality, maintenance personnel often neglect to use a ruler to inspect this work and mostly rely on visual inspection. The door panels are freely suspended vertically, and when there is no external force, visual inspection can easily overlook hidden dangers. When the actual gap is too large due to factors such as wear of the door guide shoes during use, it may pose a safety hazard of foreign objects passing through the gap. Common reports of children's fingers being pinched are mostly caused by this hidden danger. Therefore, it is particularly important to develop an elevator door panel gap measurement and detection device that can detect faults in a timely manner and improve its integration and automation level. Summary of the Invention

[0003] (1) Technical problems solved

[0004] In response to the shortcomings of the existing technology, the present invention provides an elevator door leaf gap measurement and detection device that can detect faults in a timely manner. It has the advantages of facilitating the detection of the gap between the elevator door leaf and the car wall panel, and solves the problem of inaccurate manual detection.

[0005] (2) Technical solution

[0006] In order to achieve the above-mentioned purpose of facilitating the detection of the gap between the elevator door leaf and the car wall panel, the present invention provides the following technical solutions: an elevator door leaf gap measurement and detection device that can detect faults in a timely manner, comprising a door frame, a door leaf and a car, the door frame being welded to the outside of the car, the door leaf being arranged on the front side of the door frame, and inspection doors being provided on opposite sides of the door frame opening, a pressure sensor being fixedly installed at the end of the door frame close to the door leaf, a motor being provided on the surface of the door frame and located on the side opposite to the two inspection doors, a telescopic rod being fixedly installed at the output end of the motor, a protrusion being fixedly installed on the output end surface of the telescopic rod, the protrusion being in contact with the pressure sensor, a controller being provided on the side of the motor close to the inspection door, and the motor being electrically connected to the controller.

[0007] Preferably, the pressure sensor is located between the protrusion and the door leaf, and the distance between the protrusion and the end of the output end of the telescopic rod is 6 mm.

[0008] Preferably, a slide is fixedly mounted on the bottom of the motor, a slide rail is provided on the bottom of the slide, and a handle is fixedly mounted on the side of the slide close to the inspection door.

[0009] Preferably, an alarm is provided inside the controller, and a signal connection is established between the controller and the pressure sensor.

[0010] (3) Beneficial effects

[0011] Compared with the prior art, the present invention provides an elevator door gap measurement and detection device that can detect faults in a timely manner, and has the following beneficial effects:

[0012] 1. This elevator door leaf gap measurement and detection device, which can promptly detect faults, uses a controller to start a motor, causing the motor's output end to extend a telescopic rod. As the telescopic rod's output end extends, it gradually approaches and presses against the door leaf. When the gap between the door frame and the door leaf exceeds 6mm, a protrusion presses against the surface of the pressure sensor, which transmits a pressure signal to the controller. The controller's internal alarm sounds an alarm and controls the motor's output end to rotate, causing the telescopic rod to retract. Based on the measurement results, further inspection and maintenance of the elevator door leaf and door frame can be performed through the inspection door. This achieves accurate and rapid gap detection.

[0013] 2. This elevator door leaf gap measurement and detection device, which can detect faults in a timely manner, is used for maintenance. The maintenance door is opened, and the handle is held to pull the slide toward the opening of the maintenance door. The slide slides along the slide rail, so that the assembly of the motor and the telescopic rod follows the slide to the outside of the opening of the maintenance door, thereby facilitating maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of an elevator door leaf gap measurement and detection device proposed by the present invention that can detect faults in a timely manner;

[0015] Figure 2 This is a structural schematic diagram of an elevator door leaf gap measurement and detection device proposed by the present invention, which can detect faults in a timely manner.

[0016] In the figure: 1. Door frame; 2. Motor; 3. Telescopic rod; 4. Door leaf; 5. Pressure sensor; 6. Protrusion; 7. Inspection door; 8. Controller; 9. Car; 10. Slide seat; 11. Slide rail; 12. Handle. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] See also Figure 1-2 An elevator door leaf gap measurement and detection device capable of promptly detecting faults comprises a door frame 1, a door leaf 4, and a car 9. The door frame 1 is welded to the outside of the car 9, and the door leaf 4 is arranged at the front side of the door frame 1. Inspection doors 7 are provided on opposite sides of the door frame 1 opening. A pressure sensor 5 is fixedly mounted on the end of the door frame 1 near the door leaf 4. A motor 2 is provided on the surface of the door frame 1, on the side opposite the two inspection doors 7. A telescopic rod 3 is fixedly mounted on the output end of the motor 2. A protrusion 6 is fixedly mounted on the surface of the output end of the telescopic rod 3. The protrusion 6 abuts against the pressure sensor 5. The pressure sensor 5 is located between the protrusion 6 and the door leaf 4. The distance between the protrusion 6 and the end of the output end of the telescopic rod 3 is 6 mm. According to the installation and use requirements of the "Safety Specification for Elevator Manufacturing and Installation GB7588-2003", the gap between the elevator car door leaf and the car wall panel cannot be greater than 6 mm. A controller 8 is provided on the side of the motor 2 near the inspection door 7, and the motor 2 is electrically connected to the controller 8. An alarm is installed within the controller 8, and a signal connection is established between the controller 8 and the pressure sensor 5. A slide 10 is fixedly mounted to the bottom of the motor 2, and a slide rail 11 is provided at the bottom of the slide 10. A handle 12 is fixedly mounted on the side of the slide 10 near the access door 7. When the access door 7 is opened, the handle 12 allows the motor 2 and slide 10 assembly to be easily pulled out along the slide rail 11 for installation and maintenance.

[0019] During use, the controller 8 controls the motor 2 to start, and the output end of the motor 2 drives the telescopic rod 3 to extend. As the output end of the telescopic rod 3 extends, the output end of the telescopic rod 3 gradually approaches and presses against the door leaf 4. When the gap between the door frame 1 and the door leaf 4 is greater than 6 mm, the protrusion 6 will be squeezed on the surface of the pressure sensor 5, and the pressure sensor 5 will then transmit the pressure signal to the controller 8. The alarm in the controller 8 will sound an alarm, and the controller 8 will control the output end of the motor 2 to rotate, driving the telescopic rod 3 to retract. According to the measurement results, the door leaf and door frame of the elevator can be further inspected and maintained through the inspection door.

[0020] When performing maintenance, the maintenance door 7 is opened, and the handle 12 is held to pull the slide 10 toward the opening of the maintenance door 7. The slide 10 slides along the slide rail 11, so that the assembly of the motor 2 and the telescopic rod 3 follows the slide 10 to move to the outside of the opening of the maintenance door 7, making it convenient for maintenance.

[0021] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An elevator door leaf gap measuring and detecting device capable of timely detecting faults, comprising a door frame (1), a door leaf (4) and a car (9), wherein the door frame (1) is welded to the outside of the car (9), and the door leaf (4) is arranged on the front side of the door frame (1), characterized in that: An inspection door (7) is provided on each side opposite to the opening of the door frame (1), a pressure sensor (5) is fixedly installed on the end of the door frame (1) close to the door leaf (4), a motor (2) is provided on the surface of the door frame (1) and on the side opposite to the two inspection doors (7), a telescopic rod (3) is fixedly installed on the output end of the motor (2), a protrusion (6) is fixedly installed on the output end surface of the telescopic rod (3), the protrusion (6) is in contact with the pressure sensor (5), a controller (8) is provided on the side of the motor (2) close to the inspection door (7), and the motor (2) is electrically connected to the controller (8); The pressure sensor (5) is located between the protrusion (6) and the door leaf (4), and the distance between the protrusion (6) and the end of the output end of the telescopic rod (3) is 6 mm; A slide seat (10) is fixedly mounted on the bottom of the motor (2), a slide rail (11) is provided on the bottom of the slide seat (10), and a handle (12) is fixedly mounted on a side of the slide seat (10) close to the inspection door (7).

2. The elevator door leaf gap measuring and detecting device capable of timely detecting faults according to claim 1 is characterized in that: An alarm is provided inside the controller (8), and a signal connection is established between the controller (8) and the pressure sensor (5).

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