CN204416973U - Suspension arm of crane protection against electric shock prior-warning device - Google Patents

Abstract

The utility model relates to an anti-electric shock warning device for a crane arm, comprising: a detection device and an alarm device, and the detection device includes an electric field detector, an analog-to-digital converter, a distance detector, a first controller, and a wireless communication transmitter; The output end of the electric field detector is connected to the first input end of the first controller through an analog-to-digital converter; the output end of the distance detector is connected to the second input end of the first controller, and the wireless communication transmission The device is connected to the serial output port of the first controller; the alarm device includes a wireless communication receiver, a second controller and an alarm module; the wireless communication transmitter is connected to the wireless communication receiver through a wireless signal; the The output end of the wireless communication receiver is connected with the serial port input end of the second controller; the output end of the second controller is connected with the control end of the alarm module. The utility model can avoid the contact between the boom of the crane and the electrified body, and reduce the possibility of construction personnel getting an electric shock.

Description

Crane arm anti-electric shock warning device

【Technical field】

The utility model relates to engineering safety early warning technology, in particular to a crane arm anti-electric shock early warning device.

【Background technique】

Crane is an extremely important construction equipment in electric power construction, and plays a very important role in electric power construction. The main function of the crane is to lift the object to a high place, or to lift an object from a high place to a low place. It facilitates the work of construction personnel, saves labor, and improves the work efficiency of electric power construction.

The stroke of the crane arm is relatively large. During construction on the electric power site, especially in a substation, the crane arm needs to keep a certain safe distance from the live body (such as high-voltage equipment).

At present, in order to ensure construction safety, the crane driver usually keeps the boom and the charged body at a safe distance based on his own experience. However, due to the large stroke of the crane boom, the driver often cannot make an accurate judgment. Make the distance between the crane arm and the electrified body smaller than the safe distance, or even touch the electrified body. It is easy to get an electric shock from the boom of the crane, and then cause the construction personnel to be in danger of electric shock, and even cause the high-voltage equipment to form a short circuit to the ground, causing a major safety accident in the power system.

【Content of utility model】

Based on this, it is necessary to provide a crane arm anti-electric shock early warning device for the problem that the crane arm is easy to get an electric shock in the prior art.

An anti-electric shock warning device for a crane arm, comprising:

A detection device and an alarm device, wherein the detection device is installed at the far end of the boom of the crane, the alarm device is installed in the cab of the crane, and the detection device is connected to the alarm device through a wireless signal;

The detection device includes an electric field detector, an analog-to-digital converter, a distance detector, a first controller, and a wireless communication transmitter; wherein, the output end of the electric field detector passes through the analog-to-digital converter and the first controller's second One input end is connected; the output end of the distance detector is connected with the second input end of the first controller, and the wireless communication transmitter is connected with the serial port output end of the first controller;

The alarm device includes a wireless communication receiver, a second controller, and an alarm module;

The wireless communication transmitter is connected to the wireless communication receiver through a wireless signal; the output end of the wireless communication receiver is connected to the serial port input end of the second controller; the output end of the second controller is connected to the alarm module connected to the control terminal.

The utility model detects the electric field intensity at the position of the far end of the boom of the crane through an electric field detector, and outputs an analog signal of the field strength, and then generates a digital signal of the field strength through an analog-to-digital converter and transmits it to the first controller; the distance detector detects the distance between the far end of the boom of the crane and the charged body, and output a distance signal to the first controller. The first controller transmits the digital field strength signal and the distance signal to the wireless communication transmitter through the serial port output port, and sends out the digital field strength signal and the distance signal through the wireless communication transmitter. The wireless communication receiver receives the field strength digital signal and the distance signal, and transmits the field strength digital signal and the distance signal to the second controller, so that the second controller can compare the field strength digital signal and the distance signal When the signal judges whether the boom of the crane is within a safe distance, an alarm message is sent to the alarm module. The alarm module sends out an alarm after receiving the alarm information. The utility model can detect the electric field at the position of the far end of the crane arm and the distance between the far end of the crane arm and the charged body, and when the distance between the crane arm and the charged body is less than the safe distance, an alarm is issued. Thereby avoiding the contact between the boom of the crane and the electrified body, reducing the possibility of construction workers getting an electric shock, ensuring the safety of the construction workers and reducing the probability of electric safety accidents in the process of electric power construction.

【Description of drawings】

Fig. 1 is a circuit structure schematic diagram of an embodiment of a crane arm anti-electric shock early warning device of the present invention.

【Detailed ways】

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings.

Please refer to FIG. 1 , which is a schematic diagram of the circuit structure of an embodiment of a crane arm anti-electric shock warning device of the present invention.

An anti-electric shock warning device for a crane arm, comprising:

A detection device and an alarm device, wherein the detection device is installed at the far end of the boom of the crane, the alarm device is installed in the cab of the crane, and the detection device is connected to the alarm device through a wireless signal;

The detection device includes an electric field detector 110, an analog-to-digital converter 111, a distance detector 112, a first controller 113, and a wireless communication transmitter 114;

Wherein, the output end of the electric field detector 110 is connected with the first input end of the first controller 113 through the analog-to-digital converter 111; the output end of the distance detector 112 is connected with the second input end of the first controller 113 connected, the wireless communication transmitter 114 is connected to the serial port output end of the first controller 113;

The alarm device includes a wireless communication receiver 121, a second controller 122 and an alarm module 123;

Described wireless communication transmitter 114 is connected with described wireless communication receiver 121 by wireless signal; The output end of described wireless communication receiver 121 is connected with the serial port input end of second controller 122; The output end is connected with the control end of the alarm module 123 .

Preferably, the wireless communication transmitter 114 is a 2.4G wireless communication transmitter, and the wireless communication receiver 121 is a 2.4G wireless communication receiver.

Further, the electric field detector 110 is a three-dimensional electric field strength detector. The three-dimensional electric field strength detector can detect the electric field strength at various angles in three-dimensional space, and has the advantages of high sensitivity and high accuracy.

Further, the distance detector 112 is an ultrasonic distance detector 112 . The ultrasonic distance detector 112 can accurately measure the distance to the electrified body, can directly output the distance digital signal, and has the advantages of high measurement accuracy and strong anti-interference ability.

Further, the alarm module 123 includes a warning light or a warning buzzer. Therefore, an alarm can be issued by controlling the flashing of the warning light or the sound of the warning buzzer to remind the crane driver to control the boom of the crane away from the charged body.

The following introduces the working process of a crane arm anti-electric shock early warning device of the present invention:

The electric field detector 110 detects the electric field strength at the position of the far end of the crane arm, and outputs an analog signal of the field strength, and then generates a digital signal of the field strength through the analog-to-digital converter 111 and transmits it to the first controller 113; the distance detector 112 detects The distance between the far end of the boom of the crane and the charged body, and output a distance signal to the first controller 113 . The first controller 113 transmits the field strength digital signal and the distance signal to the wireless communication transmitter 114 through the serial port output port, and transmits the field strength digital signal and the distance signal to the outside through the wireless communication transmitter 114 issue. The wireless communication receiver 121 receives the field strength digital signal and the distance signal, and transmits the field strength digital signal and the distance signal to the second controller 122, so that the second controller 122 can transmit the field strength digital signal and the distance signal to the second controller 122. When the signal and the distance signal determine whether the crane arm is within the safe distance, an alarm message is sent to the alarm module 123 . The alarm module 123 issues an alarm after receiving the alarm information.

As another preference, the alarm module 123 includes a liquid crystal display. Correspondingly, the above alarm information includes the digital field strength signal and the distance signal. Therefore, after receiving the warning information, the liquid crystal display can display the corresponding field strength and distance according to the field strength digital signal and the distance signal, so that the crane driver can clearly obtain the specific field strength at the position of the far end of the crane arm. And the specific distance from the electrified body further avoids the contact between the crane arm and the electrified body, and reduces the possibility of construction workers getting an electric shock.

The utility model can detect the electric field at the position of the far end of the crane arm and the distance between the far end of the crane arm and the charged body, and when the distance between the crane arm and the charged body is less than the safe distance, an alarm is issued. Thereby avoiding the contact between the boom of the crane and the electrified body, reducing the possibility of construction workers getting an electric shock, ensuring the safety of the construction workers and reducing the probability of electric safety accidents in the process of electric power construction.

The above-mentioned embodiments only express several implementations of the utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (5)

1. a suspension arm of crane protection against electric shock prior-warning device, is characterized in that, comprising:

Detector and warning device, wherein, described detector is arranged on suspension arm of crane distal portion, and described warning device is arranged in crane operator's compartment, and described detector is connected with described warning device by wireless signal;

Described detector comprises electric field detector, A and D converter, range finder, the first controller, radio communications transmitter; The mouth of described electric field detector is connected through the first input end of A and D converter with the first controller; The mouth of described range finder is connected with the second input end of the first controller, and described radio communications transmitter is connected with the serial ports mouth of the first controller;

Described warning device comprises wireless communication receiver, second controller and alarm module;

Described radio communications transmitter is connected by wireless signal with described wireless communication receiver; The mouth of described wireless communication receiver is connected with the serial ports input end of second controller; The mouth of described second controller is connected with the control end of alarm module.

2. suspension arm of crane protection against electric shock prior-warning device according to claim 1, is characterized in that, described electric field detector is three-dimensional electric field field intensity detector.

3. suspension arm of crane protection against electric shock prior-warning device according to claim 1, is characterized in that, described range finder is ultrasonic distance detector.

4. suspension arm of crane protection against electric shock prior-warning device according to claim 1, is characterized in that, described alarm module is Warning light or warning buzzer phone at least.

5. the suspension arm of crane protection against electric shock prior-warning device according to claim 1 or 4, it is characterized in that, described alarm module comprises Liquid Crystal Display.