CN109650220B

CN109650220B - Anti-falling safe elevator

Info

Publication number: CN109650220B
Application number: CN201910038578.9A
Authority: CN
Inventors: 郭剑辉
Original assignee: Quanzhou Licheng Yunli Protective Equipment Co ltd
Current assignee: Sichuan Di Ca Elevator Manufacturing Co ltd
Priority date: 2019-01-16
Filing date: 2019-01-16
Publication date: 2021-04-27
Anticipated expiration: 2039-01-16
Also published as: CN109650220A

Abstract

The invention discloses a fall-preventing safety elevator, wherein a protective plate is arranged between an elevator door and a car in the middle of each elevator door in the horizontal direction, and guide wheels, rope winding wheels, connecting ropes and a motor are respectively arranged on two sides in the vertical direction. The guide wheel is established above the lift-cabin door and the rope winding wheel is established in the outside of guide wheel, and the guard plate includes lift portion and pars contractilis, and pars contractilis telescopic connection is below the lift portion, connects rope one end and lift portion fixed connection and the other end and walks around guide wheel and rope winding wheel fixed connection, the output shaft and the rope winding wheel fixed connection of motor. Each elevator door also comprises two door leaves and a controller, wherein a pressure sensor is arranged on one of the door leaves between the two door leaves, and the pressure sensor and the motor are electrically connected with the controller. Compared with the prior art, the invention has the advantages of simpler structure, more sensitive reaction and effective reduction of error rate.

Description

Anti-falling safe elevator

Technical Field

The invention relates to the field of elevator safety protection, in particular to a falling-prevention safety elevator.

Background

The lift elevator is widely applied to a plurality of places such as markets, residential buildings, hospitals and entertainment places, and generally comprises a lift car, a vertical rail and a motor, wherein the lift car can move up and down along the vertical rail under the driving of the motor.

In the running process of the elevator, the car reciprocates up and down on the vertical track, when the car is located at a higher position, the space of the car downwards is generally free of any barrier, once the lower-layer elevator door is opened or is maliciously pried open and the like, people do not pay attention to directly enter the elevator, and the risk of directly falling from a high place exists, so that great safety hazard is brought to people.

In view of the above, the applicant has made an intensive study to solve the above problems and has made the present invention.

Disclosure of Invention

The invention mainly aims to provide a fall-prevention safety elevator which can prevent the occurrence of a fall accident.

In order to achieve the above purpose, the solution of the invention is:

a fall-preventing safety elevator is characterized in that a protection plate is arranged between an elevator door and a car at the middle position of each elevator door in the horizontal direction, guide wheels, a rope winding wheel, a connecting rope and a motor are respectively arranged on two sides in the vertical direction, the guide wheels are arranged above the elevator doors, the rope winding wheel is arranged on the outer side of the guide wheels, the protection plate comprises a lifting part and a telescopic part, the telescopic part is telescopically connected below the lifting part, one end of the connecting rope is fixedly connected with the lifting part, the other end of the connecting rope bypasses the guide wheels and is fixedly connected with the rope winding wheel, and an output shaft of the motor is fixedly connected with the; each elevator door also comprises two door leaves and a controller, wherein a pressure sensor is arranged on one of the door leaves between the two door leaves, and the pressure sensor and the motor are electrically connected with the controller.

Furthermore, the other door leaf is provided with a groove corresponding to the pressure sensor, and an elastic sleeve is arranged in the groove.

Furthermore, the two sides between the elevator door and the elevator car are also provided with rails for the protection plate to slide.

Further, the lifting part is of a hollow structure and is provided with a sliding groove, and the telescopic part is inserted into the lifting part and is arranged on the sliding groove in a sliding mode.

After the structure is adopted, the anti-falling safe elevator is mainly characterized in that the protection plate is arranged between the elevator car and the elevator door, the motor for driving the protection plate to ascend and descend, the guide wheel, the rope winding wheel and the connecting rope are arranged, the controller for controlling the motor to rotate is further arranged, the pressure sensor is arranged between the two elevator door leaves, and the pressure sensor can be extruded when the elevator door is closed.

When the elevator is to be opened, when the car door and the elevator door are overlapped, the car door is opened firstly, then two door leaves of the elevator door are opened, so that the pressure sensor senses that the pressure is reduced and transmits a signal to the controller, the controller receives the signal and controls the motor to rotate forwards or reversely, so that the rope winding wheel rotates to wind the connecting rope, the protecting plate is further lifted, the protecting plate moves upwards and extrudes the telescopic part of the protecting plate positioned on the upper layer, and when the car door of the car moves to the same horizontal height with the elevator door, the protecting plate arranged on the elevator door is completely arranged on the elevator door and blocks the elevator door of the previous floor, so that the passengers entering and exiting the elevator of the floor can not be influenced, and the safety; after the elevator door is closed, the two door leaves are combined, so that the pressure sensor senses the pressure of the two door leaves and transmits a signal to the controller, the controller receives the signal and then controls the motor to rotate reversely or rotate forwardly, the rope is connected with the rope winding wheel to wind out, the protection plate descends under the action of gravity, the elevator door is blocked again, and the protection effect is achieved.

Compared with the prior art, the invention has the advantages of simpler structure, more sensitive reaction and effectively reduced error rate.

Drawings

Fig. 1 is a perspective view of the external structure of the present invention.

Fig. 2 is a front view of the profile structure of the present invention.

Fig. 3 is a view showing an outline of an elevator door.

Fig. 4 is another external structural view of the elevator door.

Fig. 5 is a sectional view showing the external three-dimensional structure of the guard plate.

Fig. 6 is a perspective view showing the external structure of the elevator in operation after the elevator door is hidden.

Fig. 7 is a side sectional view in which the elevator is running.

In the figure:

an elevator door-1; a door leaf-11; a pressure sensor-12; a cage-2; a protection plate-3;

a lifting section-31; a sliding groove-311; a telescoping section-32; a guide wheel-41; a rope winding wheel-42;

a connecting rope-43; a motor-44.

Detailed Description

In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.

As shown in fig. 1-5, a fall-preventing safety elevator, wherein each elevator door 1 is provided with a protection plate 3 between the elevator door 1 and the car 2 at the middle position of the horizontal direction and is provided with a guide wheel 41, a rope winding wheel 42, a connection rope 43 and a motor 44 at two sides of the vertical direction, the guide wheel 41 and the motor 44 are fixed on a wall surface (not shown) at the side of the elevator door 1 in the elevator shaft, the guide wheel 41 is arranged above the elevator door 1 and the rope winding wheel 42 is arranged at the outer side of the guide wheel 41, the protection plate 3 comprises a lifting part 31 and an expansion part 32, the expansion part 32 is telescopically connected below the lifting part 31, one end of the connection rope 43 is fixedly connected with the back surface of the lifting part 31 and the other end bypasses the guide wheel 41 and is fixedly connected with the rope winding wheel 42, and the output shaft of the. The motor 44 drives the pulley 42 to rotate. Each elevator door 1 further includes two door leaves 11 and a controller (not shown), a pressure sensor 12 is disposed on one of the door leaves 11 between the two door leaves 11, and the pressure sensor 12 and the motor 44 are electrically connected to the controller.

Preferably, the other door leaf 11 is provided with a recess 13 corresponding to the pressure sensor 12, and an elastic sleeve (not shown) is arranged in the recess 13. The elastic sleeve is used for buffering the pressure sensor 12, when the elevator door is closed, the elastic sleeve applies pressure to the pressure sensor 12,

preferably, rails 33 on which the protection plate 3 slides are further provided at both sides between the elevator door 1 and the car 2. The two sides of the lifting part 31 of the protection plate 3 are slidably connected with the rail 33 and can move up and down along the rail 33.

Further, the lifting unit 31 has a hollow structure and is provided with a slide groove 311, and the expansion unit 32 is inserted into the lifting unit 31 and slidably provided in the slide groove 311.

After the structure is adopted, the anti-falling safe elevator is mainly characterized in that the protection plate 3 is arranged between the elevator door 1 and the elevator car 2, the guide wheel 41 for driving the protection plate 3 to ascend and descend, the rope winding wheel 42, the connecting rope 43 and the motor 44 are arranged, the controller for controlling the motor 44 to rotate is further arranged, the pressure sensor 12 is arranged between the door leaves 11 of the two elevator doors 1, and the pressure sensor 12 can be extruded when the elevator doors 1 are closed. The pressure sensor 12 senses pressure change after being pressed, and transmits a signal to the controller, thereby driving the motor to pull the guard plate.

As shown in fig. 6-7, when the elevator arrives at a designated floor and is about to be opened, when the car door coincides with the elevator door 11, the car door is opened first, then the two door leaves 11 of the elevator door 1 are opened, so that the pressure sensor 12 senses that the pressure is reduced and transmits a signal to the controller, the controller receives the signal and then controls the motor 44 to rotate forward or backward, so that the rope winding wheel 42 rotates to wind the connecting rope 43, and further pulls the protection plate 3 to move upward, the protection plate 3 moves upward and presses the telescopic part 32 of the protection plate 3 on the upper layer, and the telescopic part 32 of the protection plate 3 on the upper layer is completely retracted into the corresponding lifting part 41. When the car door of the car 2 is completely opened, the elevator door 1 is also correspondingly opened, the protection plate 3 on the floor is pulled to the upper floor by the motor 44, and the protection plate 3 is completely above the elevator door 1 and blocks the elevator door 1 on the previous floor, so that the passengers can not be influenced when the elevator on the floor passes in and out, and the safety of the previous floor is also ensured. Then, when closing elevator door 1, two door leafs 11 coincide for pressure sensor 12 senses the pressure of two door leafs 11 and transmits the signal to the controller, and the controller receives the signal and controls motor 44 reversal or corotation, makes the last connecting rope 43 of rope winding wheel 42 wind out, and guard plate 3 descends under the effect of gravity, and then blocks elevator door 1 again, plays the guard action.

It should be noted that the pressure sensor 12 may be a commercially available product, such as the pressure sensor 12 with the model number CY-YZ-11, and the motor 44 of each layer is controlled by a controller, so that the pressure sensor 12, the motor 44 and the controller are connected by a simple circuit, which is a conventional method.

The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications thereof by those skilled in the art should be considered as not departing from the scope of the present invention.

Claims

1. A fall-preventing safety elevator is characterized in that a protection plate is arranged between an elevator door and a car at the middle position of each layer of elevator door in the horizontal direction, guide wheels, a rope winding wheel, a connecting rope and a motor are respectively arranged on two sides in the vertical direction, the guide wheels are arranged above the elevator door, the rope winding wheel is arranged on the outer side of the guide wheels, the protection plate comprises a lifting part and a telescopic part, the telescopic part is telescopically connected below the lifting part, one end of the connecting rope is fixedly connected with the lifting part, the other end of the connecting rope bypasses the guide wheels and is fixedly connected with the rope winding wheel, and an output shaft of the motor is fixedly connected with the; each elevator door also comprises two door leaves and a controller, wherein a pressure sensor is arranged on one of the door leaves between the two door leaves, and the pressure sensor and the motor are electrically connected with the controller;

the controller receives the signal and then controls the motor corotation or the reversal for the rope sheave rotates the winding and connects the rope, and then the pulling guard plate rebound, guard plate rebound and extrusion are located the pars contractilis of upper story guard plate, and the pars contractilis of upper story guard plate retracts corresponding lifting unit completely.

2. A fall arrest safety elevator according to claim 1, characterised in that the other door leaf is provided with a recess corresponding to the pressure sensor, in which recess a resilient sleeve is provided.

3. The fall arrest safety elevator as claimed in claim 1, wherein rails on both sides between the elevator door and the car for the protection panel to slide are provided.

4. The fall arrest safety elevator according to claim 3, wherein the elevating part is hollow and has a sliding groove, and the telescopic part is inserted into the elevating part and slidably provided on the sliding groove.