CN212450219U

CN212450219U - Debris elevator with prevent shearing protection device

Info

Publication number: CN212450219U
Application number: CN202021002771.1U
Authority: CN
Inventors: 常晓清; 冯双昌; 方良; 欧阳惠卿; 王炎
Original assignee: Shanghai Special Equipment Supervision and Inspection Technology Institute
Current assignee: Shanghai Special Equipment Supervision and Inspection Technology Institute
Priority date: 2020-06-04
Filing date: 2020-06-04
Publication date: 2021-02-02
Anticipated expiration: 2030-06-04

Abstract

The utility model discloses a debris elevator with anti-shearing protection device, which comprises a landing door and a car door, wherein the landing door and the car door both comprise upper door leaves, and the anti-shearing protection device is fixed at the top ends of the landing door and the car door; the anti-shearing protection device comprises an upper connecting plate fixed at the upper end of the door frame of the sundry elevator, a supporting column is fixed on the upper connecting plate, a lower cover plate capable of moving up and down is arranged at the lower part of the supporting column, an electric switch is arranged between the upper connecting plate and the lower cover plate, and the electric switch is triggered by reducing the distance between the upper connecting plate and the lower cover plate; when the upper door leaf in the sundries elevator door frame is normally and completely opened, the lower end of the lower cover plate is attached to the upper end of the upper door leaf. The utility model discloses a protection device is cut in anti-shear installs respectively in layer door frame upper end central point and car door frame upper end central point and puts, when debris elevator car moves down and shearing takes place with the people, electrical switch is triggered for switch board control car stops down, prevents to cause serious shearing to the people.

Description

Debris elevator with prevent shearing protection device

Technical Field

The utility model relates to a debris elevator with prevent shearing protection device belongs to debris elevator technical field.

Background

The sundry elevator is designed mainly for vertically conveying small articles, is provided with a lift car, the size and the structural form of the lift car do not allow people to enter, and is widely applied to places such as canteens, restaurants, schools and the like due to lower technical requirements, simple control system and convenient use and operation. In recent years, accidents of the sundry elevator occur occasionally, and the head or the arm of a person is sheared due to the fact that safety awareness of special equipment is weak, illegal operation is carried out, and the like.

In summary, those skilled in the art need to solve the above problems, how to provide a protection device to stop cutting in time when a person or an object is cut by a sundry elevator due to illegal operation, and to make the person get away from the elevator.

Disclosure of Invention

The to-be-solved technical problem of the utility model is: when the sundry elevator is operated in an illegal way, people or objects are prevented from being cut.

In order to solve the technical problem, the technical scheme of the utility model is to provide a debris elevator with an anti-shearing protection device, which is characterized by comprising a landing door and a car door, wherein the landing door and the car door both comprise upper door leaves, and the anti-shearing protection device is fixed at the top ends of the landing door and the car door; the anti-shearing protection device comprises an upper connecting plate fixed at the upper end of the door frame of the sundry elevator, a supporting column is fixed on the upper connecting plate, a lower cover plate capable of moving up and down is arranged at the lower part of the supporting column, an electric switch is arranged between the upper connecting plate and the lower cover plate, and the electric switch is triggered by reducing the distance between the upper connecting plate and the lower cover plate;

when the upper door leaf in the sundries elevator door frame is normally and completely opened, the lower end of the lower cover plate is tightly attached to the upper end of the upper door leaf;

the electric switch is connected to the control cabinet by a lead or a traveling cable.

Preferably, when the electrical switch is triggered, the control cabinet controls the car of the sundries elevator to stop moving downwards.

Preferably, the action gap of the electric switch is between 3 and 5 cm.

Preferably, the electrical switch comprises an upper part and a lower part, wherein the upper part is fixed at the lower end of the upper connecting plate, and the lower part is fixed at the upper end of the lower cover plate; when the upper and lower portions of the electrical switch are in contact, the electrical switch is triggered.

Preferably, a compression spring is arranged between the upper connecting plate and the lower cover plate, one end of the compression spring is connected with the lower end of the upper connecting plate, and the other end of the compression spring is connected with the upper end of the lower cover plate.

Preferably, the compression spring is sleeved on the supporting column.

Preferably, the number of the support columns is at least 2, and all the support columns are symmetrically distributed on two sides of the upper connecting plate and the lower cover plate.

Preferably, the support column be bolt assembly, bolt assembly includes bolt and nut, the nut is passed through to the bolt upper end and is fixed on the upper junction plate, the lower extreme of bolt is equipped with a nut that prevents down the apron and drop.

Preferably, the upper connecting plate is fixed at the middle position of the upper end of the sundries elevator door frame.

Preferably, the landing door and the car door both comprise door frames, an upper door leaf and a lower door leaf which can move up and down are arranged in the door frames, the upper door leaf is arranged above the lower door leaf, and a blocking device is arranged below the lower door leaf; when the lower door leaf reaches the blocking device, the lower door leaf is in a fully opened state.

Preferably, the door frame is a landing door frame or a car door frame; the upper door leaf is an upper door leaf of a landing door or an upper door leaf of a car door.

The utility model discloses a protection device is cut in anti-shear installs respectively in layer door frame upper end central point and car door frame upper end central point and puts, when debris elevator car moves down and takes place to cut with the people, the protection device action is cut in anti-shear, and electrical switch is triggered for switch board control car stops down, prevents to cause serious shearing to the people, avoids the emergence of personal casualty accident.

Drawings

Fig. 1 is a schematic view of a sundry elevator with an anti-shearing protection device;

fig. 2 is a schematic view of a shear protection device.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a debris elevator with prevent shearing protection device, as shown in fig. 1, debris elevator layer sedan-chair door generally comprises two upper and lower door leafs, is door leaf 1 on the layer door, layer door lower door leaf 2, door leaf 8 on the sedan-chair door, sedan-chair door lower door leaf 7 respectively. Door leaf 8 all has a door handle that is used for the switch door on door leaf 1 and the sedan-chair door on the layer door, door leaf more than so (be layer door on door leaf 1, door leaf 8 on the sedan-chair door) all than lower door leaf (be layer door under door leaf 2, door leaf 7 under the sedan-chair door) about 10cm higher, make things convenient for the people to carry out the switch door with the hand, so when layer door under door leaf 2 reachs first blocking device 4, layer door under door leaf 2 is in the complete open mode, with building lower surface parallel and level, at this moment, layer door on door leaf 1 generally is less than about building upper surface 10 cm. At this time, if the upper door leaf 1 of the landing door is pushed upwards by a person, the upper door leaf 1 can generally go upwards for 5-10cm until the door runs into a door hanging wheel. Similarly, when the lower door leaf 7 reaches the second blocking device 6, the lower door leaf 7 is in a fully opened state, flush with the lower surface of the car, and at this time, the upper door leaf 8 is generally lower than the upper surface of the car by about 10 cm. At the moment, if the upper door leaf 8 of the car door is manually pushed upwards, the upper door leaf 8 of the car door can generally move upwards by 5-10cm until the upper door leaf collides with the door hanging wheel.

In order to prevent the car from being seriously injured by people or objects caused by shearing due to accidental or illegal operation when the car is in a flat-layer opening state, a shearing prevention protection device 5 is designed, and the device is respectively arranged at the central position of the upper end of a landing door frame 3 and the central position of the upper end of a car door frame 9 to form a system.

As shown in fig. 2, the anti-shear protection device 5 includes an upper connection plate 54, a first bolt assembly 53, a second bolt assembly 56, a first compression spring 52, a second compression spring 57, an electrical switch 55, and a lower cover plate 51.

The anti-shearing protection device 5 is fixed at the upper end of the landing door frame 3 and the upper end of the car door frame 9 through an upper connecting plate 54. The thicknesses of the gaskets are increased and decreased and the installation height of the electrical switch 55 is adjusted through the positions of the nuts of the first adjusting bolt assembly 53 and the second adjusting bolt assembly 56 and the positions of the first compression spring 52 and the second compression spring 57, so that when the upper door leaf 1 and the upper door leaf 8 of the landing door are normally and completely opened, the lower cover plate 51 is attached to the upper ends of the upper door leaf 1 and the upper door leaf 8 of the landing door, and meanwhile, the action gap of the electrical switch 55 is ensured to be between 3 and 5 cm. The electrical switch 55 is connected to the control cabinet 10 by a wire or a trailing cable 11.

Firstly, the utility model discloses a protection device 5 is cut in anti-shear has automatic rescue function.

When the elevator car of the sundries elevator runs downwards and people cut, the anti-cutting protection device 5 on the car side Q acts, the electric switch 55 is triggered, and signals are transmitted into the control cabinet 10 through the traveling cable 11. After receiving the signal, the control cabinet 10 sends out a stop instruction for powering off the motor and the brake at the first time, at this time, the brake stops the operation of the driving main machine, and the car stops moving downwards, so that serious shearing to people is prevented. The control cabinet 10 will then issue a car up command, energizing the motor and brake, restarting the debris elevator, and moving the car up. And when the lift car ascends 20 cm, the sundry elevator stops running. The elevator car can leave the shearing position of a person as soon as possible, and the person to be sheared can leave the shearing position as soon as possible.

Similarly, when the elevator car moves upwards and people cut, the anti-cutting protection device 5 on the landing door side C acts, the electric switch 55 is triggered, and a signal is transmitted into the control cabinet 10 through the traveling cable 11. After receiving the signal, the control cabinet 10 sends out a stop command at the first time to power off the motor and the brake, at this time, the brake stops the operation of the driving main machine, and the lift car stops moving upwards to prevent serious shearing to people. The control cabinet 10 will then command the car to move down, energizing the motor and brake, restarting the debris elevator, and moving the car down. And when the lift car descends for 20 cm, the sundry elevator stops running. The elevator car can leave the shearing position of a person as soon as possible, and the person to be sheared can leave the shearing position as soon as possible.

Secondly, the control cabinet 10 has an electrical fault locking function.

When the electrical switch is triggered to send an instruction to enable the lift car to move upwards for 20 cm and stop, the maintenance personnel can recover the operation after the control cabinet eliminates the fault, so that the normal operation of the sundry elevator is prevented from recovering before the hidden danger of the sundry elevator is completely eliminated.

Thirdly, the control cabinet 10 has a malfunction recognition function.

In order to prevent the accidental triggering of the anti-shearing device caused by the over-violent force for opening the door, when the elevator is in an unlocking area, the control system enables the anti-shearing device to be in an invalid state.

Claims

1. A sundry elevator with an anti-shearing protection device is characterized by comprising a landing door and a car door, wherein the landing door and the car door respectively comprise an upper door leaf, and the anti-shearing protection device (5) is fixed at the top ends of the landing door and the car door; the anti-shearing protection device (5) comprises an upper connecting plate (54) fixed at the upper end of the door frame of the sundries elevator, a supporting column is fixed on the upper connecting plate (54), a lower cover plate (51) capable of moving up and down is arranged at the lower part of the supporting column, an electric switch (55) is arranged between the upper connecting plate (54) and the lower cover plate (51), and the electric switch (55) is triggered by reducing the distance between the upper connecting plate (54) and the lower cover plate (51);

when the upper door leaf in the sundries elevator door frame is normally and completely opened, the lower end of the lower cover plate (51) is tightly attached to the upper end of the upper door leaf;

the electric switch (55) is connected to the inside of the control cabinet (10) through a lead or a traveling cable (11).

2. A debris elevator with anti-shear protection device according to claim 1, characterized in that when the electrical switch (55) is triggered, the control cabinet (10) controls the car of the debris elevator to stop going downwards.

3. Debris lift with anti-shear protection according to claim 1, characterized in that the movement gap of the electrical switch (55) is between 3 and 5 cm.

4. A debris elevator with shear protection as defined in claim 1, 2 or 3, wherein said electrical switch (55) comprises an upper part and a lower part, the upper part being fixed to the lower end of the upper connecting plate (54) and the lower part being fixed to the upper end of the lower cover plate (51); when the upper part and the lower part of the electric switch (55) are contacted, the electric switch (55) is triggered.

5. The sundry elevator with the anti-shearing protection device as recited in claim 1, characterized in that a compression spring is arranged between the upper connecting plate (54) and the lower cover plate (51), one end of the compression spring is connected with the lower end of the upper connecting plate (54), and the other end of the compression spring is connected with the upper end of the lower cover plate (51).

6. A debris lift with anti-shear protection as claimed in claim 5, characterized in that said compression springs are fitted over the supporting columns.

7. Debris lift with anti-shear protection, according to claim 1 or 6, characterized in that there are at least 2 support columns, all of which are symmetrically distributed on both sides of the upper connection plate (54) and the lower cover plate (51).

8. The debris elevator with the shear prevention mechanism according to claim 1, wherein the supporting column is a bolt assembly, the bolt assembly comprises a bolt and a nut, the upper end of the bolt is fixed on the upper connecting plate (54) through the nut, and the lower end of the bolt is provided with a nut for preventing the lower cover plate (51) from falling off.

9. A debris elevator with anti-shear device according to claim 1, characterized in that said upper connecting plate (54) is fixed to the debris elevator door frame at a middle position of the upper end thereof.

10. The sundry elevator with the anti-shearing protection device as claimed in claim 1, wherein the landing door and the car door both comprise door frames, an upper door leaf and a lower door leaf which can move up and down are arranged in the door frames, the upper door leaf is arranged above the lower door leaf, and a blocking device is arranged below the lower door leaf; when the lower door leaf reaches the blocking device, the lower door leaf is in a fully opened state.