Control electric box for construction platform and construction platform

Abstract

The utility model discloses a control electric box used for a construction platform and the construction platform, the control electric box comprises a box body and a circuit control module, the box body is installed on the construction platform, the circuit control module is arranged in the box body, and the circuit control module comprises a frequency conversion controller, a PLC controller and an LED display screen. The frequency conversion controller is electrically connected with the operation contactor, and the PLC is electrically connected with the frequency conversion controller. And the LED display screen is exposed on the box body, is electrically connected with the frequency conversion controller and the PLC, and is used for displaying a control operation instruction sent by the PLC or a fault code sent by the frequency conversion controller. The construction platform comprises a control electric box and further comprises a frame body and a lifting device. The device has the advantages that whether the motor breaks down or not can be automatically detected, construction platforms can work continuously through mutual signal feedback cooperation, constructors are prevented from repeatedly taking a shaft support and a guide rail back and forth for installation, and therefore the working efficiency of the constructors is effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of electric boxes, and more specifically, to a control electric box for a construction platform and a construction platform. Background Art

[0002] With the continuous improvement of the national economic level and the continuous advancement of urbanization, there are countless high-rise buildings. Elevators have become an indispensable equipment for every high-rise building. However, when installing the elevator shaft or elevator, it is difficult to install it because the floor is too high, so the installers often need to use the construction platform to install the elevator shaft or elevator. However, during the installation of the shaft bracket and guide rail, due to the large size of the shaft bracket and guide rail, the construction platform cannot carry more shaft brackets and guide rails at once. In the existing technology, the construction workers need to take the shaft bracket and guide rail back and forth repeatedly for installation.

[0003] The prior art has the following defects: during the construction process, construction workers repeatedly take the well support and guide rails back and forth for installation, which consumes a lot of labor and has low efficiency. Utility Model Content

[0004] In order to overcome the above technical defects, the utility model provides a control electric box for a construction platform and a construction platform.

[0005] In order to solve the above problems, the utility model is implemented according to the following technical scheme: a control electric box for a construction platform, comprising a box body and a circuit control module, the box body is installed on the construction platform, the circuit control module is arranged in the box body, and is characterized in that the circuit control module comprises:

[0006] A frequency conversion controller, the frequency conversion controller is electrically connected to the running contactor;

[0007] A PLC controller, the PLC controller is electrically connected to the frequency conversion controller;

[0008] An LED display screen, which is exposed on the box and is electrically connected to the frequency conversion controller and the PLC controller;

[0009] Wherein, the LED display screen is used to display the control operation instruction sent by the PLC controller or the fault code sent by the frequency conversion controller.

[0010] In one embodiment, the circuit control module further includes a main power switch, and the main power switch is used to control the power supply of the frequency conversion controller and the PLC controller.

[0011] In one embodiment, the circuit control module further includes a braking resistor, and the braking resistor is electrically connected to the frequency conversion controller.

[0012] In one embodiment, the circuit control module further includes a power contactor, and the power contactor is arranged in the circuit between the main power switch and the frequency conversion controller.

[0013] In one embodiment, the circuit control module further includes a switching power supply, and the switching power supply is electrically connected to the PLC controller.

[0014] In one embodiment, the circuit control module further includes a fuse, which is disposed in the circuit between the main power switch and the switching power supply.

[0015] In one embodiment, the circuit control module further includes an up button and a down button, and both the up button and the down button are electrically connected to the PLC controller.

[0016] In one of the embodiments, the circuit control module further includes an emergency stop button, and the emergency stop button is electrically connected to the PLC controller.

[0017] The utility model also provides a construction platform, comprising the control electric box for the construction platform, a frame and a lifting device, wherein the control electric box and the lifting device are both arranged on the frame.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. The control electrical box for the construction platform includes a box body and a circuit control module. The box body is installed on the construction platform, and the circuit control module is arranged in the box body. The circuit control module includes a frequency converter, a PLC controller and an LED display screen. The frequency converter is electrically connected to the running contactor, and the PLC controller is electrically connected to the frequency converter. The LED display screen is exposed on the box body and is electrically connected to the frequency converter and the PLC controller. The LED display screen is used to display the control operation instructions sent by the PLC controller or the fault code sent by the frequency converter. Through the above-mentioned control electrical box, not only can it automatically detect whether the motor fails, but also the construction platform can work continuously by mutual signal feedback, avoiding the construction personnel to repeatedly take the shaft bracket and guide rail back and forth for installation, thereby effectively improving the work efficiency of the construction personnel.

[0020] 2. The construction platform includes the above-mentioned control electrical box, and also includes a frame and a lifting device, which has the beneficial effects of the control electrical box. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:

[0022] Figure 1 It is a circuit diagram of the control box for the construction platform;

[0023] Figure 2 This is a schematic diagram of the construction platform.

[0024] In the figure: 1. Box; 2. Frequency conversion controller; 3. PLC controller; 4. Running contactor; 5. Main power switch; 6. Braking resistor; 7. Power contactor; 8. Switching power supply; 9. Fuse; 10. Up button; 11. Down button; 12. Emergency stop button; 13. Frame; 14. Lifting device. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention. The directional words such as "upper" and "lower" involved in this article are all relative to the viewing angle of the accompanying drawings. They are only for the convenience of description and cannot be understood as limitations on the technical solution. The "first, second..." used are only used to distinguish the names and do not represent specific quantities and orders.

[0026] like Figure 1 As shown, the utility model provides a control electric box for a construction platform, the control electric box includes a box body 1 and a circuit control module, the box body 1 is installed on the construction platform, the circuit control module is arranged in the box body 1, and the circuit control module includes a frequency conversion controller 2, a PLC controller 3 and an LED display screen. The frequency conversion controller 2 is electrically connected to the running contactor 4, and the running contactor 4 is used to disconnect and send an electrical signal to the frequency conversion controller 2 when the motor fails, so as to automatically detect whether the motor fails. The PLC controller 3 is electrically connected to the frequency conversion controller 2, and the PLC controller 3 can judge the required function according to the input signal instruction, and send the output signal instruction to the frequency conversion controller 2 after internal calculation processing. The frequency conversion controller 2 can automatically adjust the mechanical operation required to be completed by the motor according to the PLC output signal instruction, so that the construction platform can work continuously with mutual signal feedback, avoiding the construction personnel to repeatedly take the shaft bracket and the guide rail back and forth for installation, thereby effectively improving the work efficiency of the construction personnel. The LED display screen is exposed on the box body 1 and is electrically connected to the frequency conversion controller 2 and the PLC controller 3. The LED display screen is used to display the control operation instructions sent by the PLC controller 3 or the fault code sent by the frequency conversion controller 2. When the motor of the construction platform fails, the frequency conversion controller 2 will send the fault code to the LED display screen, and finally the fault code will be displayed on the LED display screen. When the PLC controller 3 receives the input signal instruction, it sends the current operating status of the construction platform to the LED display screen, so that the construction personnel can understand the current status of the construction platform in real time.

[0027] In a specific embodiment, the circuit control module also includes a main power switch 5, which is used to control the power supply of the frequency converter 2 and the PLC controller 3. When the construction personnel do not need the help of the construction platform, the operation of the construction platform can be directly controlled by the main power switch 5.

[0028] In a specific embodiment, the circuit control module further includes a brake resistor 6, which is electrically connected to the frequency conversion controller 2. When the motor decelerates under the action of an external force, the motor operates in a power generation state to generate regenerative energy. The three-phase AC electromotive force generated by the motor is rectified by a three-phase full-controlled bridge composed of six freewheeling diodes in the inverter part of the frequency conversion controller 2, so that the DC bus voltage in the frequency conversion controller 2 continues to increase. The brake resistor 6 is used to protect the frequency conversion controller 2.

[0029] In a specific embodiment, the circuit control module also includes a power contactor 7, which is arranged in the circuit between the main power switch 5 and the frequency conversion controller 2. The power contactor 7 is used to protect the circuit of the frequency conversion controller 2. When the voltage or current in the circuit is too large, the power contactor 7 will automatically disconnect, thereby enhancing the safety of the construction platform.

[0030] In a specific embodiment, the circuit control module further includes a switching power supply 8, which is electrically connected to the PLC controller 3. The switching power supply 8 is also called a switching converter, which is a high-frequency power conversion device. Its function is to convert a standard voltage into the voltage or current required by the user end through different forms of architecture, thereby providing a stable voltage and current for the PLC controller 3 to ensure the normal operation of the PLC controller 3.

[0031] In a specific embodiment, the circuit control module further includes a fuse 9, which is disposed in the circuit between the main power switch 5 and the switch power supply 8. The fuse 9 is used to protect the circuit of the PLC controller 3. When the current is too large, the fuse 9 will automatically cut off the circuit, thereby further enhancing the safety of the construction platform.

[0032] In a specific embodiment, the circuit control module further includes an up button 10 and a down button 11, and both the up button 10 and the down button 11 are electrically connected to the PLC controller 3. The construction personnel can directly send a signal instruction to the PLC controller 3 through the up button 10 to control the rise of the construction platform, and the construction personnel can directly send a signal instruction to the PLC controller 3 through the down button 11 to control the descent of the construction platform.

[0033] In a specific embodiment, the circuit control module further includes an emergency stop button 12, which is electrically connected to the PLC controller 3. If the flat construction platform fails and continues to operate, the construction platform can be stopped by pressing the emergency stop button 12 in the control box in an emergency.

[0034] like Figure 2 As shown, the utility model also provides a construction platform, including a control box for the construction platform, a frame 13 and a lifting device 14, both of which are arranged on the frame 13. Specifically, a workbench is arranged on the frame 13, which is a working area for construction personnel, and the lifting device 14 includes a motor and a cable for driving the construction platform. The construction platform has the beneficial effects of the above-mentioned control box, which will not be described in detail here.

[0035] The working principle of the utility model is as follows: the box 1 is installed on the construction platform, the frequency conversion controller 2 is electrically connected to the running contactor 4, and the running contactor 4 is used to disconnect and send an electrical signal to the frequency conversion controller 2 when the motor fails, so as to automatically detect whether the motor fails. The PLC controller 3 is electrically connected to the frequency conversion controller 2, so that the construction platform can work continuously with mutual signal feedback, avoiding the construction personnel to repeatedly take the shaft bracket and the guide rail back and forth for installation, thereby effectively improving the work efficiency of the construction personnel. The LED display screen is exposed on the box 1, and is electrically connected to the frequency conversion controller 2 and the PLC controller 3. The LED display screen is used to display the control operation instructions sent by the PLC controller 3 or the fault code sent by the frequency conversion controller 2, so as to facilitate the construction personnel to understand the current status of the construction platform in real time.

[0036] The control electric box for the construction platform provided by the utility model and other structures of the construction platform refer to the prior art.

[0037] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Therefore, any modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A control electric box for a construction platform, comprising a box body and a circuit control module, wherein the box body is installed on the construction platform, and the circuit control module is arranged in the box body, characterized in that: The circuit control module comprises: A frequency conversion controller, the frequency conversion controller is electrically connected to the running contactor; A PLC controller, the PLC controller is electrically connected to the frequency conversion controller; An LED display screen, which is exposed on the box and is electrically connected to the frequency conversion controller and the PLC controller; Wherein, the LED display screen is used to display the control operation instruction sent by the PLC controller or the fault code sent by the frequency conversion controller.

2. The control electric box for the construction platform according to claim 1, characterized in that: The circuit control module also includes a main power switch, and the main power switch is used to control the power of the frequency conversion controller and the PLC controller.

3. The control electric box for the construction platform according to claim 1, characterized in that: The circuit control module also includes a braking resistor, and the braking resistor is electrically connected to the frequency conversion controller.

4. The control electric box for the construction platform according to claim 2, characterized in that: The circuit control module further comprises a power contactor, which is arranged in the circuit between the main power switch and the frequency conversion controller.

5. The control electric box for the construction platform according to claim 4, characterized in that: The circuit control module also includes a switching power supply, and the switching power supply is electrically connected to the PLC controller.

6. The control electric box for the construction platform according to claim 5, characterized in that: The circuit control module further comprises a fuse, which is arranged in the circuit between the main power switch and the switching power supply.

7. The control electric box for the construction platform according to claim 1, characterized in that: The circuit control module further includes an up button and a down button, and both the up button and the down button are electrically connected to the PLC controller.

8. The control electric box for the construction platform according to claim 7, characterized in that: The circuit control module also includes an emergency stop button, which is electrically connected to the PLC controller.

9. A construction platform, characterized in that: It comprises a control electric box for a construction platform as described in any one of claims 1 to 8, and also comprises a frame and a lifting device, wherein the control electric box and the lifting device are both arranged on the frame.

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