CN214376897U - Prevent mistake and go into electrified interval alarm device - Google Patents
Prevent mistake and go into electrified interval alarm device Download PDFInfo
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- CN214376897U CN214376897U CN202120294431.9U CN202120294431U CN214376897U CN 214376897 U CN214376897 U CN 214376897U CN 202120294431 U CN202120294431 U CN 202120294431U CN 214376897 U CN214376897 U CN 214376897U
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Abstract
The utility model discloses a false-entry-prevention electrified interval alarm device, which comprises a warning board, a control circuit area and a warning language area, wherein the warning board comprises a magnetic strip area, a control circuit area and a warning language area; the magnetic strip area is provided with a magnetic strip; the signal detection and judgment circuit comprises a pressure sensor, a pressure transmitter, an amplifier, a logic judgment loop and an intermediate relay which are connected in sequence; the intermediate relay comprises a normally closed contact; the alarm circuit comprises a buzzer, a button and a power supply; the button, the normally closed contact of the intermediate relay, the buzzer and the power supply are electrically connected in sequence; wherein, signal detection judges circuit and warning circuit and all locates control circuit district, and pressure sensor locates on the magnetic stripe. The utility model discloses a prevent mistake and go into electrified interval alarm device simple structure, convenient to use, pressure value between SMD pressure sensor experience warning sign of high sensitivity and the cabinet door through, if be less than the setting value and just trigger the warning return circuit, remind the operation personnel to walk wrong interval and need be alert, prevent to walk the inestimable loss that wrong interval brought.
Description
Technical Field
The utility model relates to an electric power tech field, concretely relates to prevent mistake and go into electrified interval alarm device.
Background
With the development of electric power utilities, more and more people are put into the electric power construction, and in the electric power overhaul or debugging process, because the staff members are not familiar with the site, the safety technology is still lack of pertinence and effectiveness; or the safety consciousness of the operators is weak, the professional quality and skills are not enough, and the mental state of the operators is often poor in the face of a short construction period; or because the staff member works under the non-monitoring state, the personnel casualties and the equipment damage caused by the mistaken entering of the live interval often occur. Therefore, the anti-misstep interval measure is imperative.
The current measures for preventing the false entering of the electrified interval are as follows: the safety regulation and regulation system is perfected, safety regulation and two-ticket three-system are strictly executed, the system penetration and the checking strength of personnel are enhanced, and the safety consciousness of the operating personnel is cultivated; the technical level of operators is improved, and the electrical equipment and the electrical loop are thoroughly burnt; combining with the actual situation on site, developing a targeted and effective safety technology; strict perfection of guardian rules, etc. However, the prevention is carried out according to the system and skill level, and people can inevitably make errors and have errors, so that the five-prevention of the electrical equipment is important, but the five-prevention is not enough, because the cabinet door of the switch cabinet or the protection cabinet does not have any measures for forbidding opening, and the protection models used by each unit are required to be as small as possible along with the 'nine unification' carried out by national power grid companies, so that all the protection cabinet bodies in the relay protection room are the same, and the identification plates cannot be distinguished without carefully checking, so that the invention of the alarm board is particularly important.
The existing method for preventing the interval from being mistakenly taken only stays on the surface, the interval from being mistakenly taken can be avoided only by the subjective initiative of the operating personnel, and the operating personnel cannot be effectively reminded of the interval from being mistakenly taken and needs to be alert due to the absentmindedness caused by high-intensity operation.
Based on the situation, the utility model provides a prevent mistake and go into electrified interval alarm device can effectively solve above problem.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a prevent mistake and go into electrified interval alarm device. The utility model discloses a prevent mistake and go into electrified interval alarm device simple structure, convenient to use, pressure value between paster type pressure sensor experience warning sign and the cabinet door of high sensitivity, if be less than the setting value and just trigger the warning return circuit, remind the operation personnel to have walked wrong interval and need vigilance, remind same working staff member and operation personnel simultaneously, the interval of missing by the relevant operation personnel, need in time stop to prevent to walk inestimable loss that wrong interval brought.
The utility model discloses a following technical scheme realizes:
an alarm device for preventing mistaken access to electrified space comprises
The warning board comprises a magnetic strip area, a control circuit area and a warning language area; the magnetic strip area is provided with a magnetic strip;
the signal detection and judgment circuit comprises a pressure sensor, a pressure transmitter, a logic judgment loop, an amplifier and an intermediate relay which are connected in sequence; the intermediate relay comprises a normally closed contact;
the alarm circuit comprises a buzzer, a button and a power supply; the button, the normally closed contact of the intermediate relay, the buzzer and the power supply are electrically connected in sequence;
the signal detection judging circuit and the alarm circuit are both arranged in the control circuit area, and the pressure sensor is arranged on the magnetic stripe.
An object of the utility model is to provide a prevent mistake and go into electrified interval alarm device. The utility model discloses a prevent mistake and go into electrified interval alarm device simple structure, convenient to use, pressure value between paster type pressure sensor experience warning sign and the cabinet door of high sensitivity, if be less than the setting value and just trigger the warning return circuit, remind the operation personnel to have walked wrong interval and need vigilance, remind same working staff member and operation personnel simultaneously, the interval of missing by the relevant operation personnel, need in time stop to prevent to walk inestimable loss that wrong interval brought.
Preferably, the magnetic strip area is at the left, right and lower edge of the back of the warning board.
Preferably, the quantity of pressure sensor is seven, and each vertical equidistance of warning sign left and right sides is equipped with two pressure sensor, and the horizontal equidistance of warning sign downside is equipped with three pressure sensor.
Preferably, the pressure sensor is a high-sensitivity patch type pressure sensor.
Preferably, the power source is a solar cell.
Preferably, the warning area is located on the upper portion of the warning board and is pasted with a red warning slogan.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
the utility model discloses a prevent mistake and go into electrified interval alarm device simple structure, convenient to use, pressure value between paster type pressure sensor experience warning sign and the cabinet door of high sensitivity, if be less than the setting value and just trigger the warning return circuit, remind the operation personnel to have walked wrong interval and need vigilance, remind same working staff member and operation personnel simultaneously, the interval of missing by the relevant operation personnel, need in time stop to prevent to walk inestimable loss that wrong interval brought.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic block diagram of the signal detection and judgment circuit of the present invention;
fig. 3 is a schematic structural diagram of the alarm circuit of the present invention.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the following description of the preferred embodiments of the present invention is given with reference to the accompanying examples, but it should be understood that the drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
Example 1:
as shown in figures 1 to 3, the utility model provides a prevent mistake and go into electrified interval alarm device, include
The warning board 1 comprises a magnetic strip area 11, a control circuit area 12 and a warning word area 13; the magnetic strip area 11 is provided with a magnetic strip;
the signal detection and judgment circuit 2 comprises a pressure sensor 21, a pressure transmitter 22, a logic judgment loop 24, an amplifier 23 and an intermediate relay 25 which are connected in sequence; the intermediate relay 25 includes a normally closed contact 251;
the pressure transmitter 22 converts the pressure value between the warning board 1 and the cabinet door into DC 0-10V which is output according to a linear proportion, and the DC 0-10V is used by a logic judgment loop.
The amplifier 23 is used for amplifying the mV outputted from the logic determination circuit 24 to a voltage suitable for starting the intermediate relay 25, and the output circuit thereof is connected in parallel to both ends of the coil of the intermediate relay 25.
The logic judgment loop 24 is used for judging whether the warning board 1 is separated from the cabinet door or not, outputting values or obtaining a values by two sensors on the left side of the back of the warning board 1, outputting values or obtaining b values by two sensors on the right side of the back of the warning board 1, and outputting three values of a, b and c by three sensors on the lower side of the back of the warning board 1, wherein if the three values are 1, a mV value is output, and if the three values are 0, the mV value is output.
The intermediate relay 25 is used for measuring the amplified voltage of the logic judgment loop 24, if the amplified voltage is larger than a set value, the intermediate relay 25 acts, a normally closed contact 251 of the intermediate relay opens and disconnects the alarm loop, and if the amplified voltage is smaller than the set value, the intermediate relay 25 returns to start the alarm loop.
An alarm circuit 3 including a buzzer 31, a button 32, and a power supply 33; the button 32, the normally closed contact 251 of the intermediate relay 25, the buzzer 31 and the power supply 33 are electrically connected in sequence;
the signal detection and judgment circuit 2 and the alarm circuit 3 are both arranged in the control circuit area 12, and the pressure sensor 21 is arranged on the magnetic strip.
Example 2:
as shown in figures 1 to 3, the utility model provides a prevent mistake and go into electrified interval alarm device, include
The warning board 1 comprises a magnetic strip area 11, a control circuit area 12 and a warning word area 13; the magnetic strip area 11 is provided with a magnetic strip;
the signal detection and judgment circuit 2 comprises a pressure sensor 21, a pressure transmitter 22, a logic judgment loop 24, an amplifier 23 and an intermediate relay 25 which are connected in sequence; the intermediate relay 25 includes a normally closed contact 251;
the pressure transmitter 22 converts the pressure value between the warning board 1 and the cabinet door into DC 0-10V which is output according to a linear proportion, and the DC 0-10V is used by a logic judgment loop.
The amplifier 23 is used for amplifying the mV outputted from the logic determination circuit 24 to a voltage suitable for starting the intermediate relay 25, and the output circuit thereof is connected in parallel to both ends of the coil of the intermediate relay 25.
The logic judgment loop 24 is used for judging whether the warning board 1 is separated from the cabinet door or not, outputting values or obtaining a values by two sensors on the left side of the back of the warning board 1, outputting values or obtaining b values by two sensors on the right side of the back of the warning board 1, and outputting three values of a, b and c by three sensors on the lower side of the back of the warning board 1, wherein if the three values are 1, a mV value is output, and if the three values are 0, the mV value is output.
The intermediate relay 25 is used for measuring the amplified voltage of the logic judgment loop 24, if the amplified voltage is larger than a set value, the intermediate relay 25 acts, a normally closed contact 251 of the intermediate relay opens and disconnects the alarm loop, and if the amplified voltage is smaller than the set value, the intermediate relay 25 returns to start the alarm loop.
An alarm circuit 3 including a buzzer 31, a button 32, and a power supply 33; the button 32, the normally closed contact 251 of the intermediate relay 25, the buzzer 31 and the power supply 33 are electrically connected in sequence;
the signal detection and judgment circuit 2 and the alarm circuit 3 are both arranged in the control circuit area 12, and the pressure sensor 21 is arranged on the magnetic strip.
Further, in another embodiment, the magnetic stripe regions are left, right, and lower side edges of the back of the warning board 1.
Arrange in the marginal area of 1 back of the body left side of warning sign, right side and downside, guarantee that warning sign 1 can closely laminate with the cabinet door, avoid producing because the door does not close, and the condition of emergence warning.
Further, in another embodiment, the number of the pressure sensors 21 is seven, two pressure sensors 21 are vertically and equidistantly arranged on the left side and the right side of the warning board 1, and three pressure sensors 21 are transversely and equidistantly arranged on the lower side of the warning board 1.
As long as more than four pressure sensors 21 sense that the pressure is less than the set value, the warning board 1 is separated from the cabinet door of the switch cabinet.
Further, in another embodiment, the pressure sensor 21 is a high-sensitivity patch-type pressure sensor.
The high-sensitivity patch type pressure sensor is adopted, so that the pressure sensor is convenient to install, the high sensitivity of the pressure sensor is ensured, accurate alarm is realized, and the situations of misinformation, missing report and the like are reduced.
Further, in another embodiment, the power source 33 is a solar cell.
The solar cell is used for providing continuous electric energy for the buzzer, and the solar cell is adopted, so that the solar cell is environment-friendly and can save energy.
Further, in another embodiment, the warning sign area 13 is located on the top of the warning board 1, and is pasted with a red warning sign.
The red slogan is more striking, and the warning performance is improved.
The utility model discloses a theory of operation of an embodiment as follows:
a prevent mistake and enter the electrified interval alarm device, the pressure sensor 21 senses the real-time pressure value between warning sign 1 and cabinet door, and input the real-time measured value into the pressure transmitter 22 and carry on the analog quantity conversion; then the mV output quantity of the pressure transmitter 22 is input into the logic judgment loop 24 for logic judgment, and simultaneously the mV quantity output by the logic judgment loop 24 is amplified into a voltage quantity suitable for starting the intermediate relay 25 through the amplifier 23; once the logic judges that the pressure value between the alarm warning board 1 and the cabinet door is smaller than the set value, the intermediate relay 25 loses the voltage, the normally closed contact 251 is closed, and the buzzer 31 is electrified to start to generate a buzzer sound.
According to the utility model discloses a description and attached drawing, the field technical personnel make or use very easily the utility model discloses a prevent mistake and go into electrified interval alarm device to can produce the positive effect that the utility model discloses record.
Unless otherwise specified, in the present invention, if the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are used for illustrative purposes only, and should not be construed as limiting the present patent, specific meanings of the above terms can be understood by those of ordinary skill in the art in light of the specific circumstances in conjunction with the accompanying drawings.
Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass both fixed and removable connections, or integral connections; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the technical matters of the present invention all fall into the protection scope of the present invention to any simple modification and equivalent change of the above embodiments.
Claims (6)
1. The utility model provides a prevent mistake and go into electrified interval alarm device which characterized in that: comprises that
The warning board (1) comprises a magnetic strip area (11), a control circuit area (12) and a warning word area (13); the magnetic strip area (11) is provided with a magnetic strip;
the signal detection and judgment circuit (2) comprises a pressure sensor (21), a pressure transmitter (22), a logic judgment loop (24), an amplifier (23) and an intermediate relay (25) which are connected in sequence; the intermediate relay (25) includes a normally closed contact (251);
the alarm circuit (3) comprises a buzzer (31), a button (32) and a power supply (33); the button (32), the normally closed contact (251) of the intermediate relay (25), the buzzer (31) and the power supply (33) are electrically connected in sequence;
the signal detection and judgment circuit (2) and the alarm circuit (3) are both arranged on the control circuit area (12), and the pressure sensor (21) is arranged on the magnetic strip.
2. The anti-false-entry electrified interval warning device of claim 1, characterized in that: the magnetic strip area is arranged at the left side, the right side and the lower side edge of the back of the warning board (1).
3. The anti-false-entry electrified interval warning device of claim 1, characterized in that: the quantity of pressure sensor (21) is seven, and each vertical equidistance of warning sign (1) left and right sides is equipped with two pressure sensor (21), and the horizontal equidistance of warning sign (1) downside is equipped with three pressure sensor (21).
4. The anti-false-entry electrified interval warning device of claim 1, characterized in that: the pressure sensor (21) is a high-sensitivity patch type pressure sensor.
5. The anti-false-entry electrified interval warning device of claim 1, characterized in that: the power supply (33) is a solar cell.
6. The anti-false-entry electrified interval warning device of claim 1, characterized in that: the warning sign area (13) is located on the upper portion of the warning board (1) and is pasted with a red warning sign.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120294431.9U CN214376897U (en) | 2021-02-02 | 2021-02-02 | Prevent mistake and go into electrified interval alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120294431.9U CN214376897U (en) | 2021-02-02 | 2021-02-02 | Prevent mistake and go into electrified interval alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214376897U true CN214376897U (en) | 2021-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120294431.9U Active CN214376897U (en) | 2021-02-02 | 2021-02-02 | Prevent mistake and go into electrified interval alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214376897U (en) |
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2021
- 2021-02-02 CN CN202120294431.9U patent/CN214376897U/en active Active
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