CN2838336Y

CN2838336Y - Ground voltage prewarning shoes

Info

Publication number: CN2838336Y
Application number: CN 200520032256
Authority: CN
Inventors: 栗书增; 邓国富; 闫新分; 孟德顺
Original assignee: Henan Ancai Hi Tech Co Ltd
Current assignee: Henan Ancai Hi Tech Co Ltd
Priority date: 2005-10-14
Filing date: 2005-10-14
Publication date: 2006-11-22
Anticipated expiration: 2015-10-14

Abstract

The utility model relates to a pair of shoes, particularly to a pair of ground voltage prewarning shoes with a voltage monitoring effect and an audible and visual warning effect. Each ground voltage prewarning shoe comprises an insulation shoe sole, a toe cap and a shoe upper, wherein at least three conducting materials are arranged on the shoe sole, and the positions of the three conducting materials are not in line; two different sets of connecting lines are led out of any two of at least three conducting materials and are connected in a voltage-limiting rectifying filter circuit, and the connecting lines are connected in a voltage comparator which is connected with a warning circuit. The utility model can remind a user whether the ground has electricity or not and the step voltage is danger or not, remind the direction of the grounding point, etc. The utility model can well protect the safety of the user, and is favorable to a user to find the grounding phenomenon existing in the system in time; thereby, the user can deal with the problem in time to avoid the threat on the system security.

Description

Ground voltage early warning footwear

Technical field

The utility model relates to a kind of footwear, especially a kind of ground voltage early warning footwear that have monitoring voltage and sound and light alarm effect.

Background technology

The warning footware is by installing the voltage induced head additional through amplifying the warning device of reporting to the police, making it can carry out sound and light alarm automatically near the power supply certain distance at present.But it can not detect ground voltage, and can not compare by preset reference voltage.In power system, singlephase earth fault usually takes place, and isolated neutral system, allow this fault to continue operation two hours, ground voltage that can be at this moment is very harmful to personal safety.

The utility model content

The utility model purpose is to provide a kind of ground voltage early warning footwear.

To achieve these goals, the utility model adopts following technical scheme: ground voltage early warning footwear, at the bottom of comprising insulated shoes, toe-cap and upper of a shoe, three place's conductive materials are set on the sole at least, and has conductive material position, three places at least not point-blank, and at least from described three arbitrarily two places draw different two groups of lines and insert the pressure limiting current rectifying and wave filtering circuits, insert voltage comparator then, voltage comparator connects warning circuit.

Also be provided with the voltage induced that when the underfooting is good conductor, still can report to the police on the described ground voltage early warning footwear and remedy warning device, described voltage induced remedies warning device and comprises the voltage induced head, and the voltage induced head is connected with voltage comparator through current rectifying and wave filtering circuit.

Described ground voltage early warning footwear also are provided with flap, three place's conductive material lead-in wires of sole are connected with electric plug and are arranged on the toe-cap, set handling warning circuit and corresponding connection are provided with the electric plug of supporting grafting on the flap, and flap can be fixed on toe-cap and the upper of a shoe with picking and placeing.

Described warning circuit is a sound light alarming circuit, and it comprises light emitting diode and the loudspeaker that is connected by voice module.

The utility model imports the pressure limiting current rectifying and wave filtering circuit by conductive rubber under the sole and lead with ground voltage, obtain d. c. voltage signal after treatment, import voltage comparator then into, compare with the reference voltage that configures (being threshold level), when input voltage signal is higher than threshold level, output level counter-rotating, control lumination of light emitting diode separately, have different sound to send simultaneously, whether tip ground has electricity and voltage height.Above circuit can have two covers to realize all around direction monitoring, to judge the earth point direction.When being good conductor in order to remedy the underfooting, foregoing circuit can't send the defective of warning, and special making alive inductive head and current rectifying and wave filtering circuit parts when people enter the electric region territory, can send light warning, have improved electrical safety.Whether the utility model can be reminded electricity on the user of service ground, whether step voltage is dangerous, and the earth point direction etc.; Can be fine protection user of service's safety, help discovery system in time again and have grounding phenomenon avoid threatening security of system so that in time handle.The utility model flap can be separate part (can be general) in addition, can not adorn when using at ordinary times,, can be designed to large, medium and small multiple model by the footwear body that sole, toe-cap and upper of a shoe (or wearing) are formed, can scrub at ordinary times, can also do withstand voltage test to it when using as insulating boot.

Description of drawings

Fig. 1 is the utility model overall structure schematic diagram;

Fig. 2 is not with the flap schematic diagram for the utility model;

Fig. 3 is the utility model flap schematic diagram;

Fig. 4 overlooks the schematic diagram of direction for Fig. 2;

Fig. 5 is the utility model sole schematic diagram;

Fig. 6 is the schematic diagram of the utility model as overshoes;

Fig. 7 is the side schematic view of Fig. 6;

Fig. 8 is the schematic diagram of the utility model as the electric insulation boots;

Fig. 9 is the side schematic view of Fig. 8;

Figure 10 is an electrical schematic diagram of the present utility model;

Figure 11 is an embodiment circuit diagram of the present utility model.

The specific embodiment

Embodiment: shown in Fig. 1-9, ground voltage early warning footwear are made up of elastic insulated sole 4, toe-cap 5, upper of a shoe (or wearing) 11 and flap 8,

conductive rubber

1,2,3 is equipped with in the bottom surface of elastic insulated sole 4, and link to each other by the electric plug 6 above lead and the toe-cap 5, the sound and light alarm parts are housed in the flap 8, realize that by electric plug 7 and the electric plug 6 above the upper of a shoe electric mortiser connects.Flap 8 is separate part (can be general), can be fixed on the upper of a shoe (or wearing) 11 by

velcro

9,10 or other buckling clamping part.Sole 4, toe-cap 5 and upper of a shoe (or wearing) 11 are one, can be designed to large, medium and small multiple model, and can be designed as the electric insulation footwear and (see Fig. 1 ~ Fig. 5), overshoes (Fig. 6, Fig. 7), electric insulation boots multiple patterns such as (Fig. 8, Fig. 9).

Figure 10 is by being adorned sound and light alarm parts electrical schematic diagram in the flap 8.By conductive rubber under the sole 1,3 (fore-and-aft direction) and 2,3 (left and right directions), ground voltage signal is imported pressure limiting current rectifying and

wave filtering circuit

13 and 12 respectively, obtain d. c. voltage signal after treatment, importing voltage comparator 16 then into compares with the reference voltage (being threshold level) that configures, when input voltage signal is higher than threshold level, the output level counter-rotating.But several thresholdings of voltage signal input voltage comparator, different with setting reference respectively threshold levels relatively, according to input voltage height, each thresholding is realized counter-rotating successively, control light emitting diode 17 separately is luminous, send different sound by voice module 18 control loudspeakers 19 simultaneously, whether tip ground has electricity and voltage height.It is 36V that voltage exceeds equivalent step voltage, prompting " voltage high-risk ".Above circuit can have two covers to realize all around direction monitoring, to judge the earth point direction.S1 is a selector switch, and " test ", " work " two positions are arranged, and gets to the integrity that the loop can be detected in " test " position, gets to " work " position and can carry out normal test operation.When being good conductor in order to remedy the underfooting, foregoing circuit can't send the defective of warning, and special making alive inductive head 15 and current rectifying and wave filtering circuit 14 parts when people enter the electric region territory, can send light warning, have improved electrical safety.By test button S2, can test the voltage induced loop.20 is power supply, and for the light button cell of selecting for use, cell voltage can be selected according to the voice module voltage request.

Figure 11 is an embodiment circuit diagram of the present utility model; Present embodiment adopts LW339 four thresholding comparison circuits, and wherein the first thresholding M1 realizes that fore-and-aft direction has voltage alarm, and the second thresholding M2 realizes the dangerous voltage alarm of fore-and-aft direction, and the 3rd thresholding M3 realizes the dangerous voltage alarm of left and right directions; The 4th thresholding M4 realizes the warning of electric region territory; Above dangerous voltage is set at equivalent step voltage 36V.

Concrete principle is as follows:

Ground voltage detects principle: before using change-over switch S1 is put " test " position, with lead short circuit conductive rubber 1,3 (or conductive rubber 2,3), forward voltage is added in the backward end of voltage comparator by electric plug and corresponding electric loop, make comparator M1, M2 (or M3) counter-rotating, diode VD _L1, VD _L2(or VD _L3) luminous, loudspeaker signal is reported to the police, the integrity of verifying attachment.During use change-over switch S1 put " work " position, when on the ground voltage being arranged, this voltage will put between

conductive rubber

1,3 and the

conductive rubber

2,3, through being added in the backward end of voltage comparator after the rectifying and wave-filtering, surpass setting value as voltage, then make the comparator counter-rotating, send corresponding sound and light alarm signal.

Electric region territory alarm principle: press test button S2 before the use, forward voltage is added in the backward end of voltage comparator by corresponding electric loop, make comparator M4 counter-rotating, diode VD _L4Luminous, the integrity of verifying attachment.When entering the electric region territory, voltage induced head GY can produce induced voltage during use, through being added in the backward end of voltage comparator after the rectifying and wave-filtering, surpassing setting value as voltage and then makes the comparator counter-rotating send corresponding light warning signal.

The utility model flap is a separate part, can not adorn when using at ordinary times, fixes by hasp and upper of a shoe when needs, and the electric plug in upper of a shoe and the flap is well pegged graft.After putting on the utility model and loading onto flap, when entering the electric region territory, can send the light warning signal; If near ground connection is arranged, when there is voltage the underfooting, this utility model will be according to height, the earth point direction difference of voltage, and shows different sound and light signals, and remind user or its people by the side of: " ground has " or " voltage high-risk " and step voltage are at fore-and-aft direction or left and right directions.

Claims

1, ground voltage early warning footwear, at the bottom of comprising insulated shoes, toe-cap and upper of a shoe, it is characterized in that: three place's conductive materials are set on the sole at least, and has conductive material position, three places at least not point-blank, and at least from described three arbitrarily two places draw different two groups of lines and insert the pressure limiting current rectifying and wave filtering circuits, insert voltage comparator then, voltage comparator connects warning circuit.

2, ground voltage early warning footwear according to claim 1, it is characterized in that: also be provided with the voltage induced that when the underfooting is good conductor, still can report to the police on the described ground voltage early warning footwear and remedy warning device, described voltage induced remedies warning device and comprises the voltage induced head, and the voltage induced head is connected with voltage comparator through current rectifying and wave filtering circuit.

3, ground voltage early warning footwear according to claim 1 and 2, it is characterized in that: described ground voltage early warning footwear also are provided with flap, three place's conductive material lead-in wires of sole are connected with electric plug and are arranged on the toe-cap, set handling warning circuit and corresponding connection are provided with the electric plug of supporting grafting on the flap, and flap can be fixed on toe-cap and the upper of a shoe with picking and placeing.

4, ground voltage early warning footwear according to claim 3, it is characterized in that: described warning circuit is a sound light alarming circuit, it comprises light emitting diode and the loudspeaker that is connected by voice module.