CN212965138U - Electricity test patch circuit with double check - Google Patents
Electricity test patch circuit with double check Download PDFInfo
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- CN212965138U CN212965138U CN202021866713.3U CN202021866713U CN212965138U CN 212965138 U CN212965138 U CN 212965138U CN 202021866713 U CN202021866713 U CN 202021866713U CN 212965138 U CN212965138 U CN 212965138U
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Abstract
The utility model discloses an electricity test patch circuit with double check, which belongs to the field of electricity test patches, and the utility model discloses an electricity test patch circuit with double check, which comprises a test circuit and a self-test power circuit, wherein the test circuit is provided with a live indicator light, when the test circuit senses that a cable is electrified, the live indicator light is lighted, and the self-test power circuit is connected with two ends of the live indicator light in parallel; be provided with the inserted sheet switch on the self-checking power supply circuit, when extracting during insulating piece in the inserted sheet switch, self-checking power supply circuit switches on and lights electrified pilot lamp. Whether the electricity testing patch is effective or not can be conveniently detected through the self-checking power supply circuit, so that the result of the detection can be ensured to be effective.
Description
Technical Field
The utility model relates to an test electric paster field, especially relate to an test electric paster circuit with dual check-up.
Background
When the cable is overhauled, besides the real cable name, the cable identification instrument is also required to identify, so that the cable is distinguished from other live cables in operation, and particularly when a plurality of cables exist in the same section, it is important to strictly distinguish the cable needing to be overhauled from other live cables. Meanwhile, the accident that the live cable is mistakenly cut due to mistaken cable identification hanging can be effectively prevented. Sawing cables must have a reliable safety protection. Before sawing the cable, it must be verified that the cable has indeed been cut and that the cable is free of electricity, and then it can be worked after the cable core has been inserted with an earthed iron pin with a wooden handle, preferably an epoxy handle. The person holding the wooden handle should wear insulating gloves and stand on the insulating pad, and special attention should be paid to ensure that the iron-brazing rod is well grounded. If the cable needs to be moved in work, care should be taken, brute force is avoided, and other cables in operation are prevented from being damaged strictly.
When electrified objects such as cable wires and the like are overhauled, power failure and non-electric state confirmation are needed to carry out construction. The electricity testing process is only confirmed once before operation, misoperation power transmission possibly existing in the overhaul construction process is easy to cause danger, and the danger is caused if equipment is damaged and the inspection result is possibly wrong during inspection.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to solve the technical problem that an electricity-testing patch circuit with double check-up is proposed, whether detection itself that can be convenient is effective to guarantee that the result of detecting is effectual.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides an electricity test patch circuit with double check-up, including inspection circuit and self-checking power supply circuit, the inspection circuit is provided with electrified pilot lamp, when the inspection circuit senses that the cable is electrified, the electrified pilot lamp lights, the self-checking power supply circuit is parallelly connected with the both ends of electrified pilot lamp; be provided with the inserted sheet switch on the self-checking power supply circuit, when extracting during insulating piece in the inserted sheet switch, self-checking power supply circuit switches on and lights electrified pilot lamp.
The utility model has the preferable technical proposal that a self-checking power supply circuit is also provided with a battery and an adjustable resistor; the battery, the adjustable resistor and the plug switch are connected in series; and under the maximum resistance value of the adjustable resistor, the current of the self-checking power supply circuit cannot light the electrified indicating lamp.
The utility model has the preferable technical proposal that the inspection circuit comprises an inductive coupling coil, an amplifying and conducting circuit, a power circuit and a high-voltage indicator lamp; the high-voltage indicating lamp is connected to the amplifying and conducting circuit so as to be conducted when the inductive coupling coil induces the current of the cable to light the high-voltage indicating lamp.
The utility model discloses preferred technical scheme lies in, be provided with a plurality of triode on the enlarged conducting circuit, the inductive coupling coil output is connected in first the base of triode, all the other the base of triode all with preceding one the projecting pole of triode is connected, last the collecting electrode of triode connect in the negative pole of high pressure pilot lamp, all the other the collecting electrode of triode all connect in high pressure pilot lamp's positive pole.
The utility model has the preferable technical proposal that the power circuit comprises an induction power coil and a diode, and the indicator lamp also comprises an electrified indicator lamp; the anode of the diode is connected with one end of the induction live coil, the cathode of the diode is connected with the anode of the live indicator lamp, and the cathode of the live indicator lamp is connected with the other end of the induction power coil; the live indicator lamp is connected with the amplifying and conducting circuit in parallel.
The utility model discloses preferred technical scheme lies in, inductive coupling coil is back the font setting, just inductive coupling coil's the unsettled setting of center end.
The utility model has the advantages that:
the utility model provides an electricity test patch circuit with double check-up, including inspection circuit and self-checking power supply circuit, the inspection circuit is provided with electrified pilot lamp, when the inspection circuit senses that the cable is electrified, the electrified pilot lamp lights, the self-checking power supply circuit is parallelly connected with the both ends of electrified pilot lamp; be provided with the inserted sheet switch on the self-checking power supply circuit, when extracting during insulating piece in the inserted sheet switch, self-checking power supply circuit switches on and lights electrified pilot lamp. Whether the electricity testing patch is effective or not can be conveniently detected through the self-checking power supply circuit, so that the result of the detection can be ensured to be effective.
Drawings
Fig. 1 is a schematic circuit diagram of a coil inductor according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of an electroscopic patch circuit with double verification provided in an embodiment of the present invention;
fig. 3 is a schematic diagram of an electricity testing patch circuit with double verification according to an embodiment of the present invention attached to a cable;
in the figure:
1. an inductive coupling coil; 2. an amplifying and conducting circuit; 3. a live indicator light; 4. a power supply circuit; 5. a self-checking power supply circuit; 6. a patch body; 21. a triode; 22. a high voltage indicator light; 41. a diode; 42. an induction power coil; 51. a blade switch; 52. a battery; 53. an adjustable resistor; 61. a coil induction device; 62. a surface protective film; 63. a sticking part; 7 checking the circuit.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
As shown in fig. 1 to 3, the embodiment provides an electroscopic patch with double verification, which includes a patch body 6, wherein one side of the patch body 6 is provided with an adhering portion 63, so as to adhere and fix the patch body 6 on the outer surface of a cable; the coil induction device 61 is arranged in the paster body 6 to detect the electrifying condition of the cable, the circuit of the coil induction device 61 is an electricity testing paster circuit with double checking, the electricity testing paster circuit comprises a checking circuit 7 and a self-checking power circuit 5, the checking circuit 7 is provided with a live indicator lamp 3, the live indicator lamp 3 is turned on when the checking circuit 7 senses that the cable is electrified, and the self-checking power circuit 5 is connected with two ends of the live indicator lamp 3 in parallel; be provided with inserted sheet switch 51 on the self-checking power supply circuit 5, when extracting during the insulating piece in inserted sheet switch 51, self-checking power supply circuit 5 switches on and lights electrified pilot lamp 3. The coil induction device 61 is provided with an indicator light to display the power-on condition of the cable on the other side of the patch body 6. The pasting part 63 of the paster body 6 can be conveniently adhered to the surface of the cable, the pasting part 63 is adhered to isolation paper in the initial state, and the isolation paper can be torn off in use. When the cable is electrified, the coil induction device 61 detects the cable through the electromagnetic induction principle, and informs an operator of the detected information by lighting an indicator lamp. Therefore, the electric power operators can conveniently judge whether the cable is electrified or not during operation, and the safety of the operators is ensured.
Preferably, the coil induction device 61 includes an induction coupling coil 1, an amplifying and conducting circuit 2, and a power circuit 4, and the indicator lamp includes a high-voltage indicator lamp 22; the inductive coupling coil 1 is made of copper material, and is selected according to different voltage grades. The inductive coupling coil 1 is connected to a signal input end of the amplification conduction circuit 2, the amplification conduction circuit 2 is connected to two ends of an output end of the power circuit 4, and the high-voltage indicator lamp 22 is connected to the amplification conduction circuit 2 so that the amplification conduction circuit 2 is turned on when the inductive coupling coil 1 induces current of a cable. When the voltage is enough big will be surveyed to inductive coupling coil 1, the signal of telecommunication that inductive coupling coil 1 was received to the amplification switch-on circuit 2 can switch on to make high pressure pilot lamp 22 on the amplification switch-on circuit 2 can be lighted, high pressure pilot lamp 22 adopts the red light to indicate high-pressure danger signal, makes the better safety of paying attention to of operating personnel.
Preferably, three triodes 21 are arranged on the amplifying circuit, the triodes 21 in this embodiment are preferably NPN type, the output end of the inductive coupling coil 1 is connected to the base electrode of the first triode 21, the base electrodes of the rest triodes 21 are all connected to the emitter electrode of the previous triode 21, the collector electrode of the last triode 21 is connected to the negative electrode of the high voltage indicator lamp 22, and the collector electrodes of the rest triodes 21 are all connected to the positive electrode of the high voltage indicator lamp 22. The electric signal received by the inductive coupling coil 1 is enough to conduct the transistor 21 connected with the high-voltage indicator lamp 22 through the amplification effect of the three transistors 21, so that the high-voltage indicator lamp 22 can emit light for indication. Through the quantity and the model of setting up triode 21, required voltage when can conveniently adjusting to switch on selects according to the operating mode of difference.
Preferably, the power circuit 4 comprises an induction power coil 42 and a diode 41, and the indicator lamp further comprises a live indicator lamp 3; the anode of the diode 41 is connected with one end of the induction live coil, the cathode of the diode 41 is connected with the anode of the live indicator lamp 3, and the cathode of the live indicator lamp 3 is connected with the other end of the induction power coil 42; the live indicator lamp 3 is connected in parallel with the amplifying and conducting circuit 2. The induction power coil 42 generates a current by electromagnetic induction, and thus can drive the live indicator lamp 3 to emit light. When the cable voltage is high and the amplification conducting circuit 2 of the high-voltage indicator lamp 22 is conducted, the induction power coil 42 can make the high-voltage indicator lamp 22 emit light at the same time. The diode 41 makes the current flow in one direction, thereby ensuring the correctness of the positive electrode and the negative electrode.
In order to avoid the false electricity testing caused by the failure of the electricity testing patch, preferably, the coil induction device 61 is further provided with a self-testing power circuit 5, and the self-testing power circuit 5 is connected in parallel to two ends of the live indicator lamp 3; be provided with inserted sheet switch 51 on the self-checking power supply circuit 5, when extracting during the insulating piece in inserted sheet switch 51, self-checking power supply circuit 5 switches on and lights electrified pilot lamp 3. Whether the circuit is normal is detected by switching on the self-contained power source 52, and when the insulating sheet of the plug-in switch 51 is pulled out, the live indicator lamp 3 is lighted to represent that the circuit is normal. If the lamp is not on during detection, the fact that the cable is electrified can be indicated, and the safety and the accuracy of detection are guaranteed.
Further, the self-test power supply circuit 5 is also provided with a battery 52 and an adjustable resistor 53; the battery 52, the adjustable resistor 53 and the sheet switch 51 are connected in series; and under the maximum resistance value of the adjustable resistor 53, the current of the self-detection power supply circuit 5 cannot light the electrified indicating lamp 3. After the detection circuit is normal, the live indicator lamp 3 is turned off by adjusting the adjustable resistor 53 and then is pasted on the cable, and if the live indicator lamp 3 is turned on, the cable is electrified.
Preferably, the inductive coupling coil 1 is arranged in a shape of a Chinese character 'hui', and the central end of the inductive coupling coil 1 is suspended. Preferably, a surface protective film 62 is disposed on the other side surface of the patch body 6, and the adjustment end of the adjustable resistor 53 is exposed outside the surface protective film 62. Can protect paster body 6, play certain waterproof effect simultaneously, avoid the rainy day to damage.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.
Claims (6)
1. The utility model provides an electricity test paster circuit with double check-up which characterized in that:
the cable inspection device comprises an inspection circuit (7) and a self-inspection power circuit (5), wherein the inspection circuit (7) is provided with a live indicator lamp (3), the live indicator lamp (3) is lightened when the inspection circuit (7) senses that a cable is electrified, and the self-inspection power circuit (5) is connected with two ends of the live indicator lamp (3) in parallel;
be provided with inserted sheet switch (51) on self-checking power supply circuit (5), when extracting during insulating piece in inserted sheet switch (51), self-checking power supply circuit (5) switch on and light electrified pilot lamp (3).
2. An electroscopic patch circuit with double verification as claimed in claim 1, wherein:
the self-checking power supply circuit (5) is also provided with a battery (52) and an adjustable resistor (53);
the battery (52), the adjustable resistor (53) and the sheet switch (51) are connected in series; and under the maximum resistance value of the adjustable resistor (53), the current of the self-checking power supply circuit (5) cannot light the electrified indicating lamp (3).
3. An electroscopic patch circuit with double verification according to claim 1 or 2, wherein:
the inspection circuit (7) comprises an inductive coupling coil (1), an amplification conduction circuit (2), a power circuit (4) and a high-voltage indicator lamp (22);
inductive coupling coil (1) connect in the signal input part of the circuit (2) that switches on of amplification, the circuit (2) that switches on of amplification connect in power supply circuit (4) output both ends, high pressure pilot lamp (22) connect in on the circuit (2) that switches on of amplification, with inductive coupling coil (1) switches on when sensing the electric current of cable the circuit (2) that switches on of amplification comes to light high pressure pilot lamp (22).
4. An electroscopic patch circuit with double verification as claimed in claim 3, wherein:
the amplifying and conducting circuit (2) is provided with a plurality of triodes (21), the output end of the inductive coupling coil (1) is connected to the base of the first triode (21), the base of the first triode (21) is connected with the emitting electrode of the first triode (21), the collector of the last triode (21) is connected to the negative electrode of the high-voltage indicator lamp (22), and the collector of the first triode (21) is connected to the positive electrode of the high-voltage indicator lamp (22).
5. An electroscopic patch circuit with double verification as claimed in claim 4, wherein:
the power circuit (4) comprises an induction power coil (42) and a diode (41), and the indicator lamp also comprises a charged indicator lamp (3);
the anode of the diode (41) is connected with one end of the induction power coil (42), the cathode of the diode (41) is connected with the anode of the electrified indicating lamp (3), and the cathode of the electrified indicating lamp (3) is connected with the other end of the induction power coil (42);
the live indicator lamp (3) is connected with the amplifying and conducting circuit (2) in parallel.
6. An electroscopic patch circuit with double verification as claimed in claim 5, wherein:
the inductive coupling coil (1) is arranged in a shape of a Chinese character 'hui', and the central end of the inductive coupling coil (1) is arranged in a suspension manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021866713.3U CN212965138U (en) | 2020-08-31 | 2020-08-31 | Electricity test patch circuit with double check |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021866713.3U CN212965138U (en) | 2020-08-31 | 2020-08-31 | Electricity test patch circuit with double check |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212965138U true CN212965138U (en) | 2021-04-13 |
Family
ID=75361626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021866713.3U Active CN212965138U (en) | 2020-08-31 | 2020-08-31 | Electricity test patch circuit with double check |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212965138U (en) |
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2020
- 2020-08-31 CN CN202021866713.3U patent/CN212965138U/en active Active
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