CN105160778A - High voltage test area straying preventing device - Google Patents

Abstract

The invention provides a device for preventing people from entering a high-voltage test area, which includes a fence, an infrared transmitter, a first infrared receiver, and a second infrared receiver; the fence includes a first gate post and a second gate post opposite to each other; the first 1. The second infrared receiver is fixedly arranged on the upper part of the first and second gateposts; its structural feature is that it also includes an electric rotating column, a vibration pedal and a control box; the infrared transmitter is arranged on the upper part of the electric rotating column; the vibration pedal is on the There is one block at the entrance and one exit respectively; the control box is equipped with a main control board and an audible and visual alarm; the main control board is electrically connected with the first and second infrared receivers and the vibration sensor signal of the vibration pedal; Alarm, motorized swivel column, infrared emitter and vibrating motor control electrical connection of vibrating pedal. The invention solves the problem of effectively preventing mistaken entry for the blind, deaf-mute and other disabled persons; the vibration pedal and infrared monitoring structure can greatly improve the effect of preventing mistaken entry and effectively prevent the occurrence of safety accidents.

Description

Anti-personnel misentry device in high-voltage test area

technical field

The invention relates to the field of supporting auxiliary facilities for construction in power supply departments, in particular to a device for preventing people from entering the high-voltage test area by preventing unrelated personnel from entering the test area by mistake during the high-voltage test process of the power supply department to cause safety accidents.

Background technique

Before a new substation is put into operation and during operation, it is often necessary to conduct high-voltage tests on transformers, high-voltage cabinets and other equipment in the substation. During the test, the equipment is equipped with high-voltage electricity, so it is very important to prevent unrelated personnel from entering the test area by mistake and causing unnecessary casualties and other safety accidents during the test. In order to prevent such accidents, the current common practice of power supply departments is to set up safety fences with warning signs and manual monitoring in the high-voltage test area. The environment is relatively complex, and the reliability of this traditional method is not high, and it is easy for unrelated personnel to enter the high-voltage test area by mistake, causing safety accidents and even casualties.

In response to this phenomenon, there have been many studies on the use of technical means and intelligent devices to prevent unrelated personnel from entering the high-voltage test area. For example, the Chinese patent document whose application publication number is CN103410376A discloses a "safety auxiliary system and method for high-voltage test site". The entrance of the area is monitored; another example is the Chinese patent document with the authorized announcement number CN202421213U, which discloses "a safety protection device for substation high voltage test", which is also a monitoring device based on infrared devices; another example is the application publication number CN103136888A Chinese patent literature, which discloses a "high-voltage laboratory anti-intrusion device", is also monitored by an infrared device, and the above three cases all use sound and light alarms to remind and warn the intruders.

However, similar to the above-mentioned anti-mis-entry device in the high-voltage test area, a fatal problem exists in that when the erroneous person is a blind person, a deaf-mute or other disabled person, the sound and light alarm is basically useless to him and cannot reach the device. The purpose of the test; there have been safety accidents caused by blind people straying into the high-voltage test area in work practice.

Contents of the invention

The purpose of the present invention is: to solve the problems mentioned in the background technology, provide a simple structure, low cost, which can effectively prevent safety accidents caused by irrelevant personnel, especially blind people and other disabled people, who stray into the high-voltage test area during the high-voltage test process. The high-voltage test area prevents personnel from entering the device.

The technical solution of the present invention is: the high-voltage test area anti-personnel entry device of the present invention includes a fence, an infrared transmitter, a first infrared receiver, and a second infrared receiver; the above-mentioned fence includes a first gatepost and a The second doorpost; the first infrared receiver is fixedly arranged on the upper part of the first doorpost; the second infrared receiver is fixedly arranged on the upper part of the second doorpost; it is characterized in that it also includes an electric rotating column, a vibration pedal and a control box ;

The above-mentioned infrared transmitter is fixedly arranged on the upper part of the electric rotating column; and the installation height of the infrared transmitter is matched with the first infrared receiver and the second infrared receiver; the electric rotating column is arranged on the first gatepost and the second gatepost In the middle of the entrance and exit; the electric rotating column separates the entrance and exit into an entrance and an exit; the vibration pedals are provided with the same two pieces, and the two pieces of vibration pedals are respectively provided with one piece on the outside of the entrance and exit; the vibration pedal is set There are vibration sensors and vibration motors; the control box is equipped with a main control board and an audible and visual alarm;

The main control board of the above-mentioned control box is electrically connected with the first infrared receiver, the second infrared receiver and the respective shock sensor signals of the two vibration pedals; the main control board of the control box is connected with the sound and light alarm, the electric rotating column, the infrared The transmitter and the respective vibration motors of the two vibration pedals are electrically connected.

A further solution is: the above vibration pedal also includes an upper plate, a lower plate, a speed reduction mechanism, a swing rod, a positioning sleeve, a positioning rod and a supporting spring;

The above-mentioned vibrating motor and decelerating mechanism are fixedly installed on the upper surface of the middle part of the lower plate; the decelerating mechanism is connected to the vibrating motor; the lower end of the swing rod is connected to the decelerating mechanism; the upper end of the swing rod is fixedly connected to the lower end surface of the middle part of the upper plate; There are two positioning sleeves, positioning rods and support springs respectively; the positioning sleeves are hollow cylindrical parts; two positioning sleeves are respectively fixed on the upper end surfaces of the left and right sides of the lower plate; each positioning sleeve is matched with Set a positioning rod, the lower part of the positioning rod can be inserted into the positioning sleeve up and down; the upper end of the positioning rod is fixedly connected with the lower end surface of the upper plate; each positioning sleeve is equipped with a supporting spring; the lower part of the supporting spring is socketed On the peripheral wall of the positioning sleeve, the upper end of the support spring elastically connects with the lower end surface of the upper plate; the vibration sensor is fixedly arranged on the upper plate.

A further solution is: the above-mentioned control box also includes an AC power input terminal, an AC contactor, an AC power output terminal, a power switch and a power module; wherein:

The AC contactor, controlled by the main control board, is used to control the on-off of the power supply of the high-voltage test equipment; the AC contactor has a power input terminal, a power output terminal and a control terminal; the control terminal of the AC contactor is electrically connected to the main control board ; When in use, the power input end of the AC contactor is externally connected to the on-site AC power supply in the high-voltage test area through the AC power input terminal; the power output end of the AC contactor is electrically connected to the high-voltage test equipment through the AC power output terminal;

Power switch, used to turn on and off the control box;

The power module is used to provide the working power of the control box; the power module takes power from the AC power input terminal through the power switch.

The present invention has positive effects: (1) The device for preventing people from entering the high-voltage test area according to the present invention is provided with a vibrating pedal respectively at the entrance and exit of the high-voltage test area formed by the fence, and first passes through the vibrating pedal to prevent people who enter by mistake. Vibration warning, thus solving the problem that similar devices in the prior art are basically useless to the blind, deaf-mute and other disabled people; the vibration pedal and the follow-up infrared monitoring device can greatly improve the anti-mis-entry effect and effectively prevent safety accidents occur. (2) The anti-personnel misentry device in the high-voltage test area of the present invention installs the infrared emitter on the electric rotating column by setting the electric rotating column. When the front vibrating pedal warns, the control box controls the infrared emitter to start working. , On the one hand, it can save power, on the other hand, it can effectively prolong the service life of the infrared transmitter. (3) The anti-intrusion device for the high-voltage test area of the present invention has a simple structure and low cost. The anti-intrusion effect is significantly improved by setting the vibration pedal and the follow-up infrared monitoring two lines of defense. Prospects for promotion in the power supply sector are good.

Description of drawings

Fig. 1 is a structural representation of the present invention, also schematically shows its electrical connection relationship with high voltage test equipment among the figure;

Fig. 2 is a schematic structural view of the vibrating pedal in Fig. 1;

FIG. 3 is a schematic diagram of the electrical connection relationship between the control box and related components in FIG. 1 .

The reference signs in the above-mentioned accompanying drawings are as follows:

fence 1, first gate post 11, second gate post 12,

Electric Swivel Column 2,

Infrared Emitter 3,

the first infrared receiver 4,

second infrared receiver 5,

Vibration pedal 6, upper plate 61, lower plate 62, vibration motor 63, deceleration mechanism 64, fork 65, positioning sleeve 66, positioning rod 67, support spring 68, vibration sensor 69,

control box 7,

High voltage test equipment8.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

(Example 1)

See Fig. 1, the high-voltage test area anti-personnel straying device of the present embodiment, it mainly consists of fence 1, electric rotating column 2, infrared emitter 3, first infrared receiver 4, second infrared receiver 5, vibrating pedal 6 And control box 7 forms.

The fence 1 surrounds the high-voltage test area where the high-voltage test equipment 8 is located, and the fence 1 is provided with a first gatepost 11 and a second gatepost 12 opposite to each other; the space between the first gatepost 11 and the second gatepost 12 constitutes a high-voltage test area. Import and export of the area.

The electric rotating column 2 is arranged in the middle of the entrance and exit formed by the first gatepost 11 and the second gatepost 12; the electric rotating column 2 separates the entrance and exit into an entrance and an exit, as shown by the arrow in FIG. 1 .

One infrared emitter 3 is provided, and the infrared emitter 3 is fixedly arranged on the top of the electric rotating column 2 .

The first infrared receiver 4 is fixedly arranged on the upper part of the first doorpost 11 ; and its height matches the installation height of the infrared emitter 3 .

The second infrared receiver 5 is fixedly arranged on the upper part of the second doorpost 12; and its height matches the installation height of the infrared emitter 3.

Two identical vibration pedals 6 are provided, and one of the two vibration pedals 6 is respectively arranged on the outer side of the entrance and exit of the high-pressure test area.

Referring to Fig. 2, vibration pedal 6 is mainly made up of upper plate 61, lower plate 62, vibration motor 63, deceleration mechanism 64, fork 65, positioning sleeve 66, positioning rod 67, support spring 68 and vibration sensor 69.

The upper plate 61 and the lower plate 62 are square plate parts; the vibration motor 63 and the reduction mechanism 64 are fixedly installed on the upper end surface of the middle part of the lower plate 62; the reduction mechanism 64 is connected with the vibration motor 63; The deceleration mechanism 64 is connected; the upper end of the swing rod 65 is fixedly connected with the lower end surface of the middle part of the upper plate 61; two positioning sleeves 66, two positioning rods 67 and two supporting springs 68 are respectively provided; the positioning sleeve 66 is a hollow cylinder; Two positioning sleeves 66 are respectively fixedly arranged on the upper end surfaces of the left and right sides of the lower plate 62; each positioning sleeve 66 is equipped with a positioning rod 67, and the lower part of the positioning rod 67 can be inserted into the positioning sleeve 66 up and down. Middle; the upper end of the positioning rod 67 is fixedly connected with the lower end surface of the upper plate 61; each positioning sleeve 66 is provided with a supporting spring 68; the lower part of the supporting spring 68 is sleeved on the positioning sleeve 66, and the upper end of the supporting spring 68 is connected The lower end surfaces of the plates 61 are elastically connected; the shock sensor 69 is fixedly arranged on the upper plate 61 .

The operating principle of vibration pedal 6 is: when someone stepped on its upper plate 61, vibration sensor 69 detected signal and this signal was uploaded to control box, and control vibration motor 63 got electricity work after control box 7 received signal, vibrate Motor 63 drives upper plate 61 to vibrate by speed reduction mechanism 64 and fork 65 to warn people who enter by mistake; positioning sleeve 66, positioning rod 67 support spring 68 are mainly used to limit and reset the vibration of upper plate. When no one stepped on the upper plate 61 of the vibration pedal 6, the vibration pedal 6 did not work.

Referring to Fig. 3, the control box 7 is composed of a box body and circuit components. The circuit assembly is mainly composed of AC power input terminal, AC contactor, AC power output terminal, power switch, power module, main control board and sound and light alarm.

The AC contactor has a power input terminal, a power output terminal and a control terminal; the control terminal of the AC contactor is electrically connected to the main control board; when in use, the power input terminal of the AC contactor is externally connected to the high-voltage test area site 220V through the AC power input terminal /380V AC power supply; the power output end of the AC contactor is electrically connected with the high-voltage test equipment 8 through the AC power output terminal, and is used to output AC power; the AC contactor is controlled by the main control board, and is used to control the power supply of the high-voltage test equipment 8 on and off.

The AC power input terminal and the AC power output terminal respectively include four connection terminals of A phase, B phase, C phase and N.

The power switch is used for starting and shutting down of the control box 7. The power module is used to provide the working power of the control box 7; the power module takes power from the AC power input terminal through the power switch.

The main control board is electrically connected with the first infrared receiver 4, the second infrared receiver 5 and the respective shock sensors 69 of the two vibration pedals 6; And the respective vibration motors 63 of 2 vibration pedals 6 control the electrical connection.

The working principle and process of the high-voltage test area anti-personnel entry prevention device in this embodiment are briefly described as follows:

During the high-voltage test, when someone steps on the vibration pedal 6 at the entrance of the high-voltage test area, the vibration sensor 69 of the vibration pedal 6 sends a signal to the main control board, and the main control board controls the vibration of the vibration pedal 6 after receiving the signal. The motor 63 is energized to work, so that the upper plate 61 of the vibrating pedal 6 vibrates, reminding and warning the wrong person; at the same time, the main control board controls the action of the electric rotating column 2, so that the infrared emitter located on the electric rotating column 2 3 Cooperate with the first infrared receiver 4, if the person who enters by mistake walks through the vibrating pedal 6 at the entrance and continues to walk inward, the first infrared receiver 4 detects the signal and sends the signal to the main control board, and the main control board controls The sound and light alarm works when it is powered on, and sends out a sound and light alarm; at the same time, the main control board cuts off the power supply of the high-voltage test equipment 8 through the AC contactor; when someone enters from the exit of the high-voltage test area by mistake, the vibration pedal 6 at the exit The sensor 69 sends a signal to the main control board, and after the main control board receives the signal, the vibration motor 63 that controls the vibration pedal 6 is energized to work, so that the upper plate 61 of the vibration pedal 6 vibrates, reminding and warning the wrong person; At the same time, the main control board controls the action of the electric rotating column 2, so that the infrared emitter 3 and the second infrared receiver 5 arranged on the electric rotating column 2 cooperate to work, and the subsequent actions are the same as the above, ensuring the safety of the high voltage test.

The above embodiments are descriptions of specific implementations of the present invention, rather than limitations of the present invention. Those skilled in the relevant technical fields can also make various transformations and changes without departing from the spirit and scope of the present invention. Corresponding equivalent technical solutions, therefore all equivalent technical solutions should fall into the patent protection scope of the present invention.

Claims (3)

1. A device for preventing people from entering a high-voltage test area, including a fence (1), an infrared transmitter (3), a first infrared receiver (4), and a second infrared receiver (5); the fence (1 ) includes a first gatepost (11) and a second gatepost (12) standing opposite each other; the first infrared receiver (4) is fixedly arranged on the upper part of the first gatepost (11); the second infrared receiver (5) It is fixedly arranged on the upper part of the second doorpost (12); it is characterized in that it also includes an electric rotating column (2), a vibration pedal (6) and a control box (7); The infrared emitter (3) is fixedly arranged on the upper part of the electric rotating column (2); and the installation height of the infrared emitter (3) is the same as that of the first infrared receiver (4) and the second infrared receiver (5). Coordination; the electric rotating column (2) is set in the middle of the entrance and exit formed by the first gate post (11) and the second gate post (12); the electric rotating post (2) separates the entrance and exit into an entrance and an exit; the vibration pedal (6) There are 2 identical pieces, and the 2 pieces of vibration pedals (6) are respectively provided with 1 piece on the outside of the entrance and exit; the vibration pedal (6) is provided with a vibration sensor (69) and a vibration motor (63); The control box (7) is equipped with a main control board and an audible and visual alarm; The main control board of the control box (7) is electrically connected with the signals of the first infrared receiver (4), the second infrared receiver (5) and the respective vibration sensors (69) of the two vibration pedals (6); The main control board of the box (7) is electrically connected with the respective vibration motors (63) of the sound and light alarm, the electric rotating column (2), the infrared emitter (3) and 2 vibration pedals (6). 2. The device for preventing people from entering the high-voltage test area according to claim 1, characterized in that: the vibration pedal (6) also includes an upper plate (61), a lower plate (62), a deceleration mechanism (64), Fork (65), positioning sleeve (66), positioning rod (67) and support spring (68); The vibration motor (63) and the deceleration mechanism (64) are fixedly installed on the upper surface of the middle part of the lower plate (62); the deceleration mechanism (64) is connected to the vibration motor (63); The deceleration mechanism (64) is connected; the upper end of the swing rod (65) is fixedly connected with the lower surface of the middle part of the upper plate (61); the positioning sleeve (66), the positioning rod (67) and the supporting spring (68) are respectively provided with 2 1; the positioning sleeve (66) is a hollow cylinder; 2 positioning sleeves (66) are respectively fixed on the upper end surfaces of the left and right sides of the lower plate (62); each positioning sleeve (66) is provided as a set 1 positioning rod (67), the lower part of the positioning rod (67) can be inserted into the positioning sleeve (66) up and down; the upper end of the positioning rod (67) is fixedly connected with the lower end surface of the upper plate (61); each positioning The sleeve (66) is equipped with a supporting spring (68); the lower part of the supporting spring (68) is sleeved on the outer peripheral wall of the positioning sleeve (66), and the upper end of the supporting spring (68) is connected with the lower end surface of the upper plate (61). elastically connected; the vibration sensor (69) is fixedly arranged on the upper plate (61). 3. The anti-intrusion device for high-voltage test area according to claim 1, characterized in that: the control box (7) also includes an AC power input terminal, an AC contactor, an AC power output terminal, a power switch and a power supply module; where: The AC contactor, controlled by the main control board, is used to control the on-off of the power supply of the high-voltage test equipment; the AC contactor has a power input terminal, a power output terminal and a control terminal; the control terminal of the AC contactor is electrically connected to the main control board ; When in use, the power input end of the AC contactor is externally connected to the on-site AC power supply in the high-voltage test area through the AC power input terminal; the power output end of the AC contactor is electrically connected to the high-voltage test equipment through the AC power output terminal; The power switch is used for starting and shutting down the control box (7); The power module is used to provide the working power of the control box (7); the power module takes power from the AC power input terminal through the power switch.