CN211115751U

CN211115751U - A companion ladder for power maintenance

Info

Publication number: CN211115751U
Application number: CN201921136518.2U
Authority: CN
Inventors: 王海军; 卢轶人
Original assignee: State Grid Jiangsu Electric Power Co Ltd; Xuzhou Power Supply Co of State Grid Jiangsu Electric Power Co Ltd
Current assignee: State Grid Jiangsu Electric Power Co Ltd; Xuzhou Power Supply Co of State Grid Jiangsu Electric Power Co Ltd
Priority date: 2019-07-19
Filing date: 2019-07-19
Publication date: 2020-07-28
Anticipated expiration: 2029-07-19

Abstract

The utility model discloses an elevator for power maintenance, which comprises a ladder and a lifting device, wherein a guide rail slide bar, a limit switch, a limit sensor, a control switch and a manual slide switch are arranged on the ladder, the lifting device is a cabinet body, a rotating device, a fixed plate and a controller are arranged on the lifting device, and a through hole is arranged at the top of the cabinet body; the limit switch, the limit sensor, the control switch and the manual sliding switch are connected with the controller through connecting wires, and the rotating device is connected with the controller through the connecting wires. This companion ladder passes through electric actuator control and goes up and down, still has limit switch and spacing sensor detection device simultaneously for detect the spacing value of companion ladder, easy operation, the practicality is strong.

Description

A companion ladder for power maintenance

Technical Field

The utility model belongs to the technical field of electric power, a companion ladder for power maintenance is related to.

Background

At present, electricity is indispensable energy in human life. In order to ensure a stable supply of power, a large number of power workers and maintenance tools are required for support. The power maintenance ladder is the most common tool, most of the power maintenance ladders in the prior art are the most common ladders, and most of the power maintenance ladders are treated in some insulation aspects. And along with the vigorous push of smart power grids technique, power maintenance often involves a plurality of fields, has complicated circuit in the electric power cabinet, relates to a plurality of fields such as machinery, automatically controlled and software debugging, and this kind of maintenance often needs staff's of a plurality of fields participation, and this use that just needs power maintenance ladder, but we need to pay attention to the operability convenience of ladder in the use, climb up and down if too frequently, can make the staff consume a large amount of physical power, consequently need a be convenient for power maintenance's companion ladder.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model relates to an elevator for power maintenance, this elevator pass through electric actuator control and go up and down, still have limit switch and spacing sensor detection device simultaneously for detect the spacing value of elevator, easy operation, control is convenient, the work in the aspect of the power maintenance of being convenient for very much.

The utility model provides a lifting ladder for power maintenance, including ladder and elevating gear, installed guide rail slide bar, limit switch, spacing sensor, control switch and manual slide switch on the ladder, elevating gear is the cabinet body, has installed rotating device, fixed plate and controller, the top of the cabinet body has the through-hole; the limit switch, the limit sensor, the control switch and the manual sliding switch are connected with the controller through connecting wires, and the rotating device is connected with the controller through the connecting wires.

The controller is further arranged on a cabinet body of the lifting device and comprises an operation interface, a power supply input port, a digital quantity output port, an analog quantity input port and a pulse output port; the power input port is connected with an alternating current power supply of 220V, the digital output port can output an alternating current power supply of 200V, the analog input port can receive a current signal of 4-20 milliamperes, and the operation interface can set parameter values in the controller.

And further, the limit switches are arranged on the two sides of the upper end and the lower end of the ladder, and contacts of the limit switches are electrically connected with the digital output port of the controller through connecting wires.

Further limit sensor installs the top at the ladder, limit sensor's detection port passes through the analog quantity input port electrical property of connecting wire and controller and meets.

And the control switch is further arranged on a pedal of the ladder, and a contact of the control switch is electrically connected with the digital output port of the controller through a connecting wire.

And further, the manual sliding switch is arranged on a vertical rod of the ladder, and a contact of the manual sliding switch is electrically connected with the digital output port of the controller through a connecting wire.

Further the fixed plate is two U-shaped structures and is respectively arranged on the inner side of the cabinet body.

The guide rail sliding rod is further of an I-shaped structure, is provided with clamping grooves, is arranged on two sides of the ladder and is fixed in the U-shaped clamping groove of the fixing plate.

The rotating device is further arranged on a through hole at the upper end of the cabinet body of the lifting device and comprises a rotating wheel and a servo motor, and the rotating wheel is arranged on the servo motor; the runner is provided with a latch which is meshed with a clamping groove on the guide rail sliding rod, a power input end of the servo motor is connected with a 220V alternating current power supply through a connecting wire, and a control end of the servo motor is electrically connected with a pulse output port of the controller through the connecting wire.

Drawings

Fig. 1 is a schematic view of the overall structure of an elevator for power maintenance.

In the figure: 1. a ladder; 2. a rotating device; 3. a fixing plate; 4. a guide rail slide bar; 5. a controller; 6. a limit switch; 7. a limit sensor; 8. a control switch; 9. a manual slide switch.

Detailed Description

The following describes in detail an embodiment of an elevator for power maintenance according to the present invention with reference to the accompanying drawings.

As shown in fig. 1, the utility model provides an elevator for power maintenance, including ladder 1 and elevating gear, installed guide rail slide bar 4, limit switch 6, limit sensor 7, control switch 8 and manual slide switch 9 on ladder 1, elevating gear is the cabinet body, installed rotating device 2, fixed plate 3 and controller 5, the top of the cabinet body has the through-hole; the limit switch 6, the limit sensor 7, the control switch 8 and the manual sliding switch 9 are connected with the controller 5 through connecting wires, and the rotating device 2 is connected with the controller 5 through connecting wires.

The working principle of the elevator for power maintenance is as follows: moving the elevator to a maintained place, and standing a worker on the lifting device; a worker stands on the pedal and controls the ladder 1 to ascend in the lifting device by controlling the manual sliding switch 9 on the ladder 1; a limit parameter value and the running speed of the lifting device are set on the controller 5, the limit sensor 7 can detect the distance from an object above the ladder 1 in the ascending process of the ladder 1, when the detected distance is lower than the limit parameter value set by the controller 5, the lifting device stops running, and the ladder 1 stops ascending; when the lifting device touches the limit switch 6 in the moving process of the ladder 1, the lifting device stops running, and the ladder 1 stops rising; when the worker needs to descend, the worker releases the manual sliding switch 9, closes the control switch 8, and the ladder 1 descends along with the lifting device.

As shown in fig. 1, the controller 5 is mounted on the cabinet of the lifting device, and includes an operation interface, a power input port, a digital output port, an analog input port, and a pulse output port; the power input port is connected with an alternating current power supply of 220V, the digital output port can output an alternating current power supply of 200V, the analog input port can receive a current signal of 4-20 milliamperes, and the operation interface can set parameter values in the controller 5. The operation interface of the controller 5 can be used for parameter setting, the digital output port of the controller 5 can detect signals of the limiting switch 6 on the elevator, the control switch 8 and the manual sliding switch 9 can also transmit starting and stopping signals into the controller 5, the analog input port of the controller 5 can detect signals in the limiting sensor 7, and the pulse output port of the controller 5 can control the operation of the servo motor.

According to the figure 1, the limit switches 6 are arranged on the two sides of the upper end and the lower end of the ladder 1, and the contacts of the limit switches 6 are electrically connected with the digital output port of the controller 5 through connecting wires. The limit switch 6 is mainly used for detecting the limit of the up-down movement of the ladder 1, when the upper end or the lower end of the ladder 1 moves to the through hole on the cabinet top of the lifting device, the limit switch 6 on the corresponding position is touched, the limit switch 6 is closed, and the controller 5 detects the signal.

According to the figure 1, the limit sensor 7 is installed at the top end of the ladder 1, and a detection port of the limit sensor 7 is electrically connected with an analog input port of the controller 5 through a connecting wire. The limit sensor 7 will detect the distance between the objects above during the ascent of the ladder 1. And a limit distance is set on the controller 5, and when the distance measured by the limit sensor 7 reaches or is lower than the set limit distance, the controller 5 sends an instruction to the lifting device to stop lifting immediately.

According to the figure 1, the control switch 8 is arranged on the pedal of the ladder 1, and the contact of the control switch 8 is electrically connected with the digital output port of the controller 5 through a connecting wire. The pedal is mounted on the pedal so that a worker can control the descending of the ladder 1 conveniently in the using process, and an operator can touch the control switch 8 through feet to enable the ladder 1 to descend.

According to the figure 1, the manual sliding switch 9 is arranged on the vertical rod of the ladder 1, and the contact of the manual sliding switch 9 is electrically connected with the digital output port of the controller 5 through a connecting wire. The manual slide switch 9 is installed on the vertical rod, and the worker can perform manual control in the climbing process.

According to fig. 1, the fixing plate 3 is two U-shaped structures, and is respectively installed inside the cabinet body. The ladder 1 is fixed in the lifting device through the fixing plate 3, so that the phenomenon that the ladder 1 shakes in the actual use process is avoided.

According to the figure 1, the guide rail sliding rod 4 is I-shaped, and is provided with a clamping groove, is arranged at two sides of the ladder 1 and is fixed in a U-shaped clamping groove of the fixing plate 3.

According to the figure 1, a rotating device 2 is arranged on a through hole at the upper end of a cabinet body of a lifting device, the rotating device 2 comprises a rotating wheel and a servo motor, and the rotating wheel is arranged on the servo motor; the runner is provided with a latch which is meshed with a clamping groove on the guide rail sliding rod 4, a power input end of the servo motor is connected with a 220V alternating current power supply through a connecting wire, and a control end of the servo motor is electrically connected with a pulse output port of the controller 5 through the connecting wire. A servo motor in the rotating device 2 rotates through a rotating wheel to control the guide rail sliding rod to ascend and descend on the ascending and descending device, and the guide rail sliding rod is fixed on the ladder 1 to control the ascending and descending of the ladder 1.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention and not to limit the same. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A lifting ladder for power maintenance is characterized by comprising a ladder and a lifting device, wherein a guide rail sliding rod, a limit switch, a limit sensor, a control switch and a manual sliding switch are mounted on the ladder, the lifting device is a cabinet body, a rotating device, a fixing plate and a controller are mounted on the lifting device, and a through hole is formed in the top of the cabinet body; the limit switch, the limit sensor, the control switch and the manual sliding switch are connected with the controller through connecting wires, and the rotating device is connected with the controller through the connecting wires.

2. The elevator for power maintenance of claim 1, wherein the controller is mounted on the cabinet of the elevator apparatus and comprises an operation interface, a power input port, a digital output port, an analog input port and a pulse output port; the power input port is connected with an alternating current power supply of 220V, the digital output port can output an alternating current power supply of 200V, the analog input port can receive a current signal of 4-20 milliamperes, and the operation interface can set parameter values in the controller.

3. The elevator for power maintenance of claim 1, wherein the limit switches are installed at both sides of the upper and lower ends of the ladder, and the contacts of the limit switches are electrically connected to the digital output port of the controller through a connection wire.

4. The elevator for power maintenance of claim 1, wherein the limit sensor is mounted at the top end of the ladder, and the detection port of the limit sensor is electrically connected with the analog input port of the controller through a connection wire.

5. The elevator for power maintenance of claim 1, wherein the control switch is mounted on a pedal of the ladder, and a contact of the control switch is electrically connected to the digital output port of the controller through a connection wire.

6. The elevator for power maintenance of claim 1, wherein the manual slide switch is mounted on a vertical bar of the ladder, and a contact of the manual slide switch is electrically connected to the digital output port of the controller through a connection wire.

7. The elevator for power maintenance of claim 1, wherein the fixing plate has two U-shaped structures, each of which is installed inside the cabinet.

8. The elevator for power maintenance of claim 1, wherein the rail slide bar has an I-shaped structure with a slot thereon, is installed at both sides of the ladder, and is fixed in the U-shaped slot of the fixing plate.

9. The elevator for power maintenance according to claim 1, wherein the rotating means is mounted on a through hole at the upper end of the cabinet of the elevator, the rotating means comprises a rotating wheel and a servo motor, the rotating wheel is mounted on the servo motor; the runner is provided with a latch which is meshed with a clamping groove on the guide rail sliding rod, a power input end of the servo motor is connected with a 220V alternating current power supply through a connecting wire, and a control end of the servo motor is electrically connected with a pulse output port of the controller through the connecting wire.