CN219316755U

CN219316755U - Electric lifting device for grille door

Info

Publication number: CN219316755U
Application number: CN202222011652.8U
Authority: CN
Inventors: 夏文明; 苏晨; 宋永彬; 高广; 张留; 皱文; 李东东; 张伟伟; 陈诚
Original assignee: Fourth Engineering Co Ltd of China Railway 15th Bureau Group Co Ltd
Current assignee: Fourth Engineering Co Ltd of China Railway 15th Bureau Group Co Ltd
Priority date: 2022-08-01
Filing date: 2022-08-01
Publication date: 2023-07-07
Anticipated expiration: 2032-08-01

Abstract

The utility model provides an electric lifting device for a grid door, which comprises a framework, a PLC (programmable logic controller), a driving device, a fixed wheel device, a belt and a falling prevention device, wherein the driving device, the fixed wheel device and the falling prevention device are fixedly arranged on the framework, and the driving device and the falling prevention device are respectively and electrically connected with the PLC; the driving device comprises a servo motor, a speed reducer, a synchronous shaft and a plurality of rotating belt pulleys, wherein the PLC is electrically connected with the servo motor, one end of the speed reducer is connected with the servo motor, the other end of the speed reducer is connected with the synchronous shaft through a coupler, the plurality of rotating belt pulleys are all installed on the synchronous shaft and synchronously rotate along with the synchronous shaft, each rotating belt pulley is correspondingly matched with one fixed wheel device and one belt, one end part of each belt is fixedly connected with the corresponding rotating belt pulley, and the other end part of each belt is fixedly connected with the grid door after bypassing the corresponding fixed wheel device. The utility model can realize the stable and mute lifting and lowering operation of the grille door.

Description

Electric lifting device for grille door

Technical Field

The utility model relates to the field of buildings, in particular to an electric lifting device for a grille door.

Background

At present, in the field of construction, the operations such as hoisting, transferring and installing are mainly carried out by depending on products such as steel wire ropes or chain blocks. Conventional wire ropes or chain blocks are not suitable for certain working environments due to factors such as protection level, space limitations, safety, structural shape and the like.

Disclosure of Invention

The utility model aims to solve the technical problem of providing an electric lifting device for a grid door, which realizes stable and mute lifting operation.

The utility model is realized in the following way: the electric lifting device for the grid door comprises a framework, a PLC (programmable logic controller), a driving device, a fixed wheel device, a belt and a falling prevention device, wherein the driving device, the fixed wheel device and the falling prevention device are fixedly arranged on the framework, and the driving device and the falling prevention device are respectively and electrically connected with the PLC and controlled by the PLC;

the driving device comprises a servo motor, a speed reducer, a synchronizing shaft and a plurality of rotating belt pulleys, the PLC is electrically connected with the servo motor and used for controlling the rotating speed and the number of turns of the servo motor, one end of the speed reducer is connected with the servo motor, the other end of the speed reducer is connected with the synchronizing shaft through a coupler, the rotating belt pulleys are all installed on the synchronizing shaft and synchronously rotate along with the synchronizing shaft, each rotating belt pulley is correspondingly matched with a fixed wheel device and a belt, one end of each belt is fixedly connected with the corresponding rotating belt pulley, and the other end of each belt is fixedly connected with the grid door after bypassing the corresponding fixed wheel device.

Further, a sliding rail for lifting the grid door is arranged on the framework.

Further, the anti-falling device comprises an electromagnetic bolt and a sensor, the electromagnetic bolt and the sensor are respectively electrically connected with the PLC and controlled by the PLC, the sensor and the electromagnetic bolt are respectively fixed on the sliding track, signals are transmitted to the PLC when the sensor detects that the grille door is located at a certain height, and the PLC controls the electromagnetic bolt to fall to lock the grille door.

Further, the fixed wheel device comprises a fixed wheel bearing fixing seat, a fixed wheel shaft, a fixed wheel bearing and a fixed pulley, wherein the fixed wheel bearing is arranged on the framework through the fixed wheel bearing fixing seat, the fixed pulley is arranged on the fixed wheel shaft, and the fixed wheel shaft is arranged in the fixed wheel bearing.

Further, the belt is fixedly connected with the grating door through a full-tooth threaded rod.

Further, the framework is mounted on the curtain wall.

Further, the speed reducer is fixed on the framework through a speed reducer fixing seat.

Further, the synchronous shaft is arranged on the framework through a synchronous shaft bearing fixing seat, and the rotary belt pulley is fixedly connected with the synchronous shaft.

Further, the PLC controller is installed in the control panel.

The utility model has the advantages that: the user can be according to the number of grid door size adjustment rotation belt pulley, through the synchronous rotation of the rotation belt pulley that sets up on the synchronizing shaft to and the cooperation belt, can realize the steady, the silence of grid door promote with put down the operation, be provided with anti-falling device simultaneously, prevent the unexpected gliding of grid door, improve the security.

Drawings

The utility model will be further described with reference to examples of embodiments with reference to the accompanying drawings.

Fig. 1 is an overall schematic view of an electric lifting device for a grille door according to the present utility model.

Fig. 2 is a cross-sectional view A-A of fig. 1.

Fig. 3 is a B-B cross-sectional view of fig. 1.

Fig. 4 is a partially exploded schematic view of an active device of the present utility model.

Fig. 5 is a partially exploded view of the fixed wheel assembly of the present utility model.

Reference numerals illustrate:

1-framework, 11-sliding track, 2-PLC controller, 3-driving device, 31-servo motor, 32-reduction gear, 33-synchronizing shaft, 34-rotating belt pulley, 35-coupling, 36-reduction gear fixing seat, 37-synchronizing shaft bearing fixing seat, 4-fixed wheel device, 41-fixed wheel bearing fixing seat, 42-fixed wheel shaft, 43-fixed wheel bearing, 44-fixed pulley, 5-belt, 6-anti-falling device, 200-grid door and 300-curtain wall.

Detailed Description

Referring to fig. 1 to 5, the electric lifting device for a grille door of the present utility model includes a skeleton 1, a PLC controller 2, a driving device 3, a fixed wheel device 4, a belt 5 and a fall protection device 6, wherein the driving device 3, the fixed wheel device 4 and the fall protection device 6 are fixedly installed on the skeleton 1 of the grille door 200, and the driving device 3 and the fall protection device 6 are respectively electrically connected with the PLC controller 2 and controlled by the PLC controller 2;

the driving device 3 comprises a servo motor 31, a speed reducer 32, a synchronizing shaft 33 and a plurality of rotating belt pulleys 34, the PLC 2 is electrically connected with the servo motor 31 and controls the rotating speed and the number of turns of the servo motor 31, one end of the speed reducer 32 is connected with the servo motor 31, the other end of the speed reducer 32 is connected with the synchronizing shaft 33 through a coupler 35, the plurality of rotating belt pulleys 34 are all installed on the synchronizing shaft 33 and synchronously rotate along with the synchronizing shaft 33, each rotating belt pulley 34 is correspondingly matched with one fixed wheel device 4 and one belt 5, one end of each belt 5 is fixedly connected with the corresponding rotating belt pulley 34, and the other end of each belt 5 bypasses the corresponding fixed wheel device 4 and is fixedly connected with the grid door 200.

Preferably, the framework 1 is provided with a sliding rail 11 for lifting the grid door.

Preferably, the anti-falling device 6 includes an electromagnetic bolt (not shown) and a sensor (not shown), the electromagnetic bolt and the sensor are respectively electrically connected with the PLC controller 2 and controlled by the PLC controller 2, and the sensor and the electromagnetic bolt are respectively fixed on the sliding rails 11, generally disposed at the highest position of the sliding rails on both sides, and transmit a signal to the PLC controller 2 when the sensor detects that the grille door 200 is located at a certain height, and the PLC controller 2 controls the electromagnetic bolt to fall and lock the grille door 200.

Preferably, the fixed wheel device 4 includes a fixed wheel bearing fixing seat 41, a fixed wheel shaft 42, a fixed wheel bearing 43 and a fixed pulley 44, the fixed wheel bearing 43 is mounted on the framework 1 through the fixed wheel bearing fixing seat 41, the fixed pulley 44 is mounted on the fixed wheel shaft 42, and the fixed wheel shaft 43 is mounted in the fixed wheel bearing 43.

Preferably, the belt 5 is fixedly connected with the grid door 200 through a full-tooth threaded rod.

Preferably, the framework 1 is mounted on the curtain wall 300.

Preferably, the decelerator 32 is fixed to the frame by a decelerator fixing seat 36.

Preferably, the synchronizing shaft 33 is mounted on the frame 1 through a synchronizing shaft bearing fixing seat 37, and the rotary belt pulley 34 is fixedly connected with the synchronizing shaft 33.

Preferably, the PLC controller 2 is mounted in a control panel.

When the electric lifting device is used for lifting the grid door, a user starts the PLC controller by touching the control panel, the PLC controller transmits specific instructions to the servo motor, the corresponding rotating speed and the number of turns of the servo motor are controlled, the servo motor can drive the synchronous shaft to rotate when rotating, the rotating speeds of the servo motor and the couplers at two ends are regulated through the speed reducer, the rotating speeds of the synchronous shaft and the rotating belt pulley are regulated, parameters (including the rotating speeds) of the rotating belt pulley are kept consistent, the number of the rotating belt pulley can be properly increased or decreased according to the size of an object to be lifted, the belt lifts or lowers the grid door along with the rotation of the rotating belt pulley, mute operation can be realized through connecting the grid door by the belt, and direct downward stress of the rotating belt pulley can be effectively reduced through traction of the fixed pulley between the belt and the grid door, so that the service life of the rotating belt pulley is prolonged. The sensor and the electromagnetic bolt are arranged at the highest lifting position of the grating door and are used for accurately positioning the position of the grating door, and meanwhile, the potential safety hazard of falling of the grating door is eliminated. The electric lifting device for the grid door solves the problems of loose structure, exposed structure and the like of the existing lifting device, and has higher safety.

While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that the specific embodiments described are illustrative only and not intended to limit the scope of the utility model, and that equivalent modifications and variations of the utility model in light of the spirit of the utility model will be covered by the claims of the present utility model.

Claims

1. An electric lifting device for a grid door is characterized in that: the device comprises a framework, a PLC (programmable logic controller), a driving device, a fixed wheel device, a belt and a falling prevention device, wherein the driving device, the fixed wheel device and the falling prevention device are fixedly arranged on the framework and are respectively and electrically connected with the PLC and controlled by the PLC;

2. A grille-door electric lift assembly as set forth in claim 1, wherein: the framework is provided with a sliding rail for lifting the grid door.

3. A grille-door electric lift assembly as claimed in claim 2, wherein: the anti-falling device comprises an electromagnetic bolt and a sensor, the electromagnetic bolt and the sensor are respectively electrically connected with the PLC and controlled by the PLC, the sensor and the electromagnetic bolt are respectively fixed on the sliding track, signals are transmitted to the PLC when the sensor detects that the grille door is located at a certain height, and the PLC controls the electromagnetic bolt to fall to lock the grille door.

4. A grille-door electric lift assembly as set forth in claim 1, wherein: the fixed wheel device comprises a fixed wheel bearing fixing seat, a fixed wheel shaft, a fixed wheel bearing and a fixed pulley, wherein the fixed wheel bearing is arranged on a framework through the fixed wheel bearing fixing seat, the fixed pulley is arranged on a fixed wheel shaft, and the fixed wheel shaft is arranged in the fixed wheel bearing.

5. A grille-door electric lift assembly as set forth in claim 1, wherein: the belt is fixedly connected with the grid door through a full-tooth threaded rod.

6. A grille-door electric lift assembly as set forth in claim 1, wherein: the framework is arranged on the curtain wall.

7. A grille-door electric lift assembly as set forth in claim 1, wherein: the speed reducer is fixed on the framework through a speed reducer fixing seat.

8. A grille-door electric lift assembly as set forth in claim 1, wherein: the synchronous shaft is arranged on the framework through a synchronous shaft bearing fixing seat, and the rotary belt pulley is fixedly connected with the synchronous shaft.

9. A grille-door electric lift assembly as set forth in claim 1, wherein: the PLC controller is installed in the control panel.