CN211180076U - Circuit for automatically detecting auxiliary safety tool - Google Patents
Circuit for automatically detecting auxiliary safety tool Download PDFInfo
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- CN211180076U CN211180076U CN201921278151.8U CN201921278151U CN211180076U CN 211180076 U CN211180076 U CN 211180076U CN 201921278151 U CN201921278151 U CN 201921278151U CN 211180076 U CN211180076 U CN 211180076U
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Abstract
The utility model discloses an automatic circuit of supplementary safety tool of detection, include: the direct current testing device comprises a direct current power supply, a reset switch, a plurality of testing units with the same connecting structure and an alarm device, wherein the direct current power supply is electrically connected to the input end of each testing unit through the reset switch, the first output end of each testing unit is electrically connected to the negative electrode of the direct current power supply, the second output end of each testing unit is electrically connected to the positive connecting end of the alarm device, and the negative connecting end of the alarm device is electrically connected with the negative electrode of the direct current power supply. The utility model discloses a set up a plurality of test unit simultaneously in detection circuitry, realized once detecting a plurality of safety tool, improved detection efficiency, combine alarm device can be direct simultaneously to the suggestion of testing result, simple structure, it is with low costs.
Description
Technical Field
The utility model relates to a detection circuitry field, more specifically relates to an automatic detect supplementary safety tool's circuit.
Background
The electric power safety insulating tool is divided into a basic safety tool and an auxiliary safety tool, wherein the basic safety tool is a tool directly contacted with high-voltage equipment and comprises an electroscope, an insulating rod, an insulating partition plate and the like. The auxiliary insulation safety tool is a tool which has insufficient insulation strength to bear the working voltage of equipment or a line, is only used for strengthening the security function of a basic insulation safety tool and is used for preventing contact voltage, step voltage and leakage current from damaging an operator, and comprises an insulation glove, an insulation boot and the like. The performance of the safety tool is directly related to the personal safety of workers, so the test of the insulating safety tool is very important.
The existing safety tool insulation test can only test one to-be-tested product at a time, in addition, a milliammeter is required to be added to each branch circuit by adding a plurality of parallel branch circuits based on the existing test scheme, and because the milliammeter arranged on the high-voltage side is far away from an operator, the reading of the ammeter is difficult to see, and a plurality of instruments cannot be observed simultaneously, whether each to-be-tested product exceeds the leakage current specified by regulations is difficult to judge, so that the labor intensity is high, the efficiency is low, and the structure of the test device with high cost is complex.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome among the above-mentioned prior art to the defect that safety tool detection efficiency is low, with high costs, provide a circuit of supplementary safety tool of automated inspection.
In order to solve the technical problem, the technical scheme of the utility model as follows:
a circuit for automated inspection of an auxiliary safety tool, comprising: the direct current power supply is connected to the input end of each test unit through the reset switch, the first output end of each test unit is electrically connected to the negative electrode of the direct current power supply, the second output end of each test unit is electrically connected to the positive connecting end of the alarm device, and the negative connecting end of the alarm device is electrically connected with the negative electrode of the direct current power supply.
In the scheme, the test unit comprises a micro-current relay L, a signal relay X, a to-be-tested object R, an indicator light XD and a diode D, wherein the specific circuit connection relationship is that the input end of the micro-current relay L is the input end of the test unit, the output end of the micro-current relay is electrically connected with the signal relay through a contact of the signal relay X, the output end of the signal relay is electrically connected to one end of the to-be-tested object R and the anode of the diode D respectively, the other end of the to-be-tested object R is electrically connected to one end of the indicator light XD, the other end of the indicator light XD is the first output end of the test unit and is electrically connected to the cathode of a direct current power supply, and the cathode of the diode D is the second.
In this scheme, the dc power supply is a 12V dc power supply.
In the scheme, the micro-current relay is an alternating-current micro-current relay.
In the scheme, the alarm device is a buzzer.
In the scheme, the to-be-detected article is an insulating glove or an insulating boot.
Compared with the prior art, the utility model discloses technical scheme's beneficial effect is:
the utility model discloses a set up a plurality of test unit simultaneously in detection circuitry, realized once detecting a plurality of safety tool, improved detection efficiency, combine alarm device can be direct simultaneously to the suggestion of testing result, simple structure, it is with low costs.
Drawings
Fig. 1 is a schematic circuit diagram of the present invention.
Fig. 2 is a schematic diagram of the middle test unit of the present invention.
Detailed Description
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 technical solution of the present invention will be further explained with reference to the accompanying drawings and examples.
Example 1
As shown in fig. 1, a circuit for automatically testing an auxiliary safety tool includes: the direct current power supply is connected to the input end of each test unit through the reset switch, the first output end of each test unit is electrically connected to the negative electrode of the direct current power supply, the second output end of each test unit is electrically connected to the positive connecting end of the alarm device, and the negative connecting end of the alarm device is electrically connected with the negative electrode of the direct current power supply.
As shown in FIG. 2, the test unit comprises a micro-current relay L, a signal relay X, a to-be-tested object R, an indicator light XD and a diode D, wherein the specific circuit connection relationship is that the input end of the micro-current relay L is the input end of the test unit, the output end of the micro-current relay is electrically connected with the signal relay through a contact of the signal relay X, the output end of the signal relay is electrically connected to one end of the to-be-tested object R and the anode of the diode D respectively, the other end of the to-be-tested object R is electrically connected to one end of the indicator light XD, the other end of the indicator light XD is the first output end of the test unit and is electrically connected to the cathode of a direct current power supply, and the cathode of the diode D is the second output end.
Need explain, according to the utility model provides a circuit connection relation connection finishes the back, go up the electricity back, if the leakage current of arbitrary test unit place branch road exceeds predetermined regulation, then the little current relay switch of current test unit is closed, the signal relay closure of the current test unit branch road of drive simultaneously, pilot lamp place return circuit and alarm device place return circuit switch on this moment, the pilot lamp is lighted, alarm device sends audible alarm signal simultaneously, the current branch road of measurement personnel locking, find unqualified determinand, press reset switch, alarm signal is relieved. The utility model discloses in utilize the one-way conductive characteristic of test unit's diode, be the on-state to the branch road that leakage current exceeds standard, be the off-state to the normal branch road of other leakage currents, the cost is practiced thrift to the relay quantity that significantly reduces.
In this scheme, the dc power supply is a 12V dc power supply.
In the scheme, the micro-current relay is an alternating-current micro-current relay. The micro-current relay has an adjustable operating current.
In the scheme, the alarm device is a buzzer.
In the scheme, the to-be-detected article is an insulating glove or an insulating boot. The upper limit of the leakage current of the insulating glove is 9mA, and the upper limit of the leakage current of the insulating boot is 7.5 mA.
The terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent;
it is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (6)
1. A circuit for automatically testing an auxiliary safety tool, comprising: the direct current testing device comprises a direct current power supply, a reset switch, a plurality of testing units with the same connecting structure and an alarm device, wherein the direct current power supply is electrically connected to the input end of each testing unit through the reset switch, the first output end of each testing unit is electrically connected to the negative electrode of the direct current power supply, the second output end of each testing unit is electrically connected to the positive connecting end of the alarm device, and the negative connecting end of the alarm device is electrically connected with the negative electrode of the direct current power supply.
2. The circuit for automatically detecting the auxiliary safety tool as claimed in claim 1, wherein the test unit comprises a micro-current relay L, a signal relay X, a to-be-tested object R, an indicator light XD, and a diode D, and the specific circuit connection relationship is that the input end of the micro-current relay L is the input end of the test unit, the output end of the micro-current relay is electrically connected with the signal relay through the contact of the signal relay X, the output ends of the signal relay are respectively and electrically connected to one end of the to-be-tested object R and the anode of the diode D, the other end of the to-be-tested object R is electrically connected to one end of the indicator light XD, the other end of the indicator light XD is the first output end of the test unit and is electrically connected to the cathode of the DC power supply, and the cathode of the diode D is the second output end of the test unit.
3. The circuit for automatically inspecting an auxiliary safety tool of claim 1, wherein the dc power source is a 12V dc power source.
4. The circuit for automatically testing auxiliary safety tools according to claim 2, wherein the micro-current relay is an ac micro-current relay.
5. The circuit for automatically detecting auxiliary safety tools according to claim 1, wherein the alarm device is a buzzer.
6. The circuit for automatically inspecting an auxiliary safety tool according to claim 2, wherein the object to be inspected is an insulating glove or an insulating boot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921278151.8U CN211180076U (en) | 2019-08-07 | 2019-08-07 | Circuit for automatically detecting auxiliary safety tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921278151.8U CN211180076U (en) | 2019-08-07 | 2019-08-07 | Circuit for automatically detecting auxiliary safety tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211180076U true CN211180076U (en) | 2020-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921278151.8U Active CN211180076U (en) | 2019-08-07 | 2019-08-07 | Circuit for automatically detecting auxiliary safety tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211180076U (en) |
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2019
- 2019-08-07 CN CN201921278151.8U patent/CN211180076U/en active Active
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