CN210954160U - Double-plug voltage measuring device with telescopic plug - Google Patents
Double-plug voltage measuring device with telescopic plug Download PDFInfo
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- CN210954160U CN210954160U CN201921528304.XU CN201921528304U CN210954160U CN 210954160 U CN210954160 U CN 210954160U CN 201921528304 U CN201921528304 U CN 201921528304U CN 210954160 U CN210954160 U CN 210954160U
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Abstract
The utility model discloses a voltage measuring device is surveyed to plug telescopic double plug, include: the device comprises a shell, a signal prompt module arranged on the shell and a detection identification circuit arranged in the shell; an insulating protection seat is fixed at the front end of the shell, and a first plug and a second plug which are used for jacking the socket safety protection door and extending into the socket jack are arranged on the insulating protection seat; the signal prompting module is connected with the output end of the detection identification circuit, and a detection antenna connected with the input end of the detection identification circuit is fixed in the first plug; and a first plug telescopic mechanism and a second plug telescopic mechanism which respectively drive the first plug and the second plug to extend out and retract in the insulating protection seat are further arranged in the shell. The utility model has reasonable and ingenious design and convenient detection, and can jack the safety protection door by the first plug and the second plug in a cooperative manner, thereby ensuring the measurement accuracy; by controlling the extension and retraction of the first plug and the second plug, the application range of the device is widened, and the requirements of vast users are met.
Description
Technical Field
The utility model relates to a zero line and live wire detection area, concretely relates to voltage measuring device is surveyed to plug telescopic double plug.
Background
With the development of the electronic industry, the types of sockets tend to be diversified, wherein the zero-live wire connection of the two-hole socket is easy to be confused, and because the normal switch controls the live wire, if the connection is wrong, the switch is turned off and only the zero wire is cut off, and the live wire is still electrified, the electric shock accident is easy to cause; meanwhile, some electric appliances have requirements on the access of the zero line and the live line and cannot be reversely connected, if the connection is reversely connected, certain functions cannot be achieved, and even the electric appliances are damaged; therefore, the detection of the national standard two-hole socket is often needed before the socket is installed and important electric devices are used and during maintenance operation.
At present, devices capable of detecting voltage in a non-contact mode are single-plug, after the new 3C forced certification is issued, new national standard sockets are provided with safety protection doors, and for safety, the safety protection doors in two holes are required to be simultaneously applied with force to open the safety protection doors in use; therefore, the voltage measuring device with a single plug on the market cannot be inserted into the jack of a new national standard socket, an effective voltage signal is difficult to detect, a special tool is needed, and the voltage can be detected only by opening the safety protection door of the socket, so that the process is complicated, and time and labor are wasted;
in addition, because a plug is mostly required to be inserted into the jack of the socket in the detection process of the non-contact voltage detection device, the transverse thickness of the plug is necessarily very small, and the plug is easy to bend or even break under the condition of being subjected to transverse external force, so that the service life is influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model discloses a voltage equipment is surveyed to plug telescopic double plug.
The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is:
a double-plug voltage measuring device with a retractable plug comprises: the device comprises a shell, a signal prompt module arranged on the shell and a detection identification circuit arranged in the shell; an insulation protection seat is fixed at the front end of the shell, and a first plug and a second plug which are used for jacking the socket safety protection door and extending into the socket jack are arranged on the insulation protection seat; the signal prompting module is connected with the output end of the detection identification circuit, and a detection antenna connected with the input end of the detection identification circuit is fixed in the first plug; and a first plug telescopic mechanism and a second plug telescopic mechanism which respectively drive the first plug and the second plug to extend out and retract in the insulating protection seat are also arranged in the shell.
And the insulation protection seat is provided with a first plug guide hole and a second plug guide hole, and the first plug and the second plug are respectively inserted into the first plug guide hole and the second plug guide hole.
The first plug telescopic mechanism and the second plug telescopic mechanism are the same; the second plug telescopic mechanism comprises a power assisting plate and a sliding guide groove which is arranged on the inner wall of the shell and corresponds to the second plug guide hole, and the power assisting plate is movably arranged in the sliding guide groove; the second plug is fixedly connected with the power assisting plate.
A telescopic guide groove is formed in the inner wall surface and the outer wall surface of the shell corresponding to the sliding guide groove, and a sliding block is movably arranged in the telescopic guide groove; the boosting plate is vertically provided with a first limiting block and a second limiting block, a connecting plate is movably arranged between the first limiting block and the second limiting block, and the sliding block is fixedly connected with the connecting plate.
The upper end of the sliding guide groove extends to form an ejection positioning groove; the right end of the ejection positioning groove is provided with an anti-deviation groove, and an anti-deviation lug is fixed on the sliding block corresponding to the anti-deviation groove.
A spring baffle is arranged on the inner wall of the insulation protection seat corresponding to the first limiting block; and the spring baffle is fixedly connected with a compression spring which is fixedly connected with the first limiting block.
The detection identification circuit comprises a signal conversion unit and a micro control unit which are connected in sequence; the signal conversion unit comprises an analog-to-digital converter, the analog-to-digital converter is connected to the signal input end of the micro control unit, and the detection antenna is connected to the input end of the analog-to-digital converter.
The signal prompt module comprises a voltage warning lamp which is fixed on the shell and connected with the micro control unit; the voltage warning lamp comprises a first light emitting diode and a second light emitting diode, and the first light emitting diode and the second light emitting diode are connected to a first output end and a second output end of the micro control unit respectively.
The first light emitting diode is a red light emitting diode, and the second light emitting diode is a green light emitting diode.
The signal prompting module also comprises a buzzer arranged in the shell; the buzzer is connected with the third output end of the zero-live wire detection and identification device through an NPN type triode; the emitter of the NPN type triode is grounded, and the collector and the base of the NPN type triode are respectively connected with the buzzer and the third output end of the micro control unit.
The utility model has the advantages that: the utility model has reasonable and ingenious design and convenient detection, and can jack the safety protection door by the first plug and the second plug in a cooperative manner, so that the detection antenna can be closer to the charged body in the socket, and the measurement accuracy is ensured; the first plug telescoping mechanism and the second plug telescoping mechanism are used for controlling the telescoping of the first plug and the second plug, so that the application range of the device is widened, and the requirements of vast users are met; in addition, after the detection is finished, the first plug and the second plug can be retracted into the insulating protection seat, so that the service life of the device is prolonged.
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
Drawings
Fig. 1 is a front view of a double-plug voltage measuring device with retractable plugs according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of an insulation protection seat in an embodiment of the present invention;
fig. 3 is an exploded view of the housing and the plug retracting mechanism in an embodiment of the present invention;
fig. 4 is a schematic structural view of a housing and a plug retracting mechanism in an embodiment of the present invention;
fig. 5 is a circuit diagram of a detection identification circuit according to an embodiment of the present invention;
fig. 6 is a usage state diagram of the voltage measuring device with two plugs and a retractable plug in the embodiment of the present invention when used for detecting a socket.
Detailed Description
In an embodiment, referring to fig. 1 to 6, the voltage measuring device with two retractable plugs provided in this embodiment includes: the device comprises a shell 1, a signal prompt module arranged on the shell 1 and a detection identification circuit arranged in the shell 1; an insulating protection seat 2 is fixed at the front end of the shell 1, and a first plug 21 and a second plug 22 which are used for jacking the socket safety protection door 61 and extending into a socket jack are arranged on the insulating protection seat 2; the signal prompt module is connected with the output end of the detection identification circuit, and a detection antenna connected with the input end of the detection identification circuit is fixed in the first plug 21; a first plug telescoping mechanism and a second plug telescoping mechanism 3 which respectively drive the first plug 21 and the second plug 22 to extend out and retract in the insulating protection seat 2 are further arranged in the shell 1.
Specifically, when a socket with a safety protection door 61 in a new national standard is detected, the first plug telescoping mechanism and the second plug telescoping mechanism 3 respectively drive the first plug 21 and the second plug 22 to extend out of the insulating protection seat 2; when the socket of the safety protection door 61 is not detected in the old national standard, the double-plug state insertion detection can be kept; the second plug 22 can be driven to retract into the insulating protection seat 2 through the second plug telescopic mechanism 3, and the state is switched to a single-plug state; therefore, the device can be simultaneously suitable for new and old national standard sockets; for the socket with more than two holes, the second plug 22 can be driven to retract into the insulating protection seat 2 through the second plug telescopic mechanism 3, and the single-plug state is kept for detection; the first plug 21 and the second plug 22 are controlled to stretch by the first plug stretching mechanism and the second plug stretching mechanism 3, so that the application range of the device is widened, and the requirements of vast users are met.
In addition, the first plug 21 and the second plug 22 are mutually independent, and the second plug 22 is arranged according to the opening principle of the safety protection door 61, so that the safety protection door 61 can be jacked open by the cooperation of the first plug 21 and the second plug 22 during detection, the detection antenna can be closer to the charged body 62 in the socket, the measurement accuracy is ensured, other tools outside the device are not needed, the detection process for the new national standard socket is simple and convenient, and the time and the labor are saved; can meet the use requirements of customers and is easy to popularize.
The insulation protection seat 2 is provided with a first plug guide hole and a second plug guide hole, and the first plug 21 and the second plug 22 are respectively inserted into the first plug guide hole and the second plug guide hole.
The arrangement of the first plug guide hole and the second plug guide hole ensures that the distance between the second plug 22 and the first plug 21 after the second plug 22 extends out each time is unchanged.
The first plug telescopic mechanism and the second plug telescopic mechanism 3 are the same; the second plug telescoping mechanism 3 comprises a power assisting plate 31 and a sliding guide groove 11 which is arranged on the inner wall of the shell 1 corresponding to the second plug guide hole, and the power assisting plate 31 is movably arranged in the sliding guide groove 11; the second plug 22 is fixedly connected to the power assisting plate 31.
The second plug 22 is driven to move by the aid of the power assisting plate 31, firstly, the volume of the power assisting plate 31 is larger than that of the second plug 22, and the sliding stability is high; secondly, the function of protecting the first plug 21 and the second plug 22 is achieved,
even if the first plug telescoping mechanism and the second plug telescoping mechanism 3 are damaged due to excessive use of the telescoping function, the second plug 22, the first plug 21 and the detection antenna fixed in the first plug 21 cannot be damaged, and the maintenance cost of the detection antenna is higher than that of the first plug telescoping mechanism and the second plug telescoping mechanism 3, so that the maintenance cost can be effectively reduced.
A telescopic guide groove 12 is arranged corresponding to the sliding guide groove 11 and penetrating through the inner wall surface and the outer wall surface of the shell 1, and a sliding block 13 is movably arranged in the telescopic guide groove 12; the boosting plate 31 is vertically provided with a first limiting block 311 and a second limiting block 312, a connecting plate 32 is movably installed between the first limiting block 311 and the second limiting block 312, and the sliding block 13 is fixedly connected with the connecting plate 32. Similarly, the first plug is also connected with the power assisting plate of the first plug telescopic mechanism.
The upper end of the sliding guide groove 11 extends to form an ejection positioning groove 14; the right end of the ejecting positioning groove 14 is provided with an anti-deviation groove 15, and an anti-deviation lug is fixed on the sliding block 13 corresponding to the anti-deviation groove 15.
Specifically, the setting of deviation prevention protruding block avoids slider 13 skew in ejecting constant head tank 14, or touches the foreign object carelessly and leads to slider 13 follow ejecting constant head tank 14 roll-off, is driven by compression spring's elasticity and moves right in sliding guide 11 and reset, has guaranteed the stability of using.
A spring baffle is arranged on the inner wall of the insulation protection seat 2 corresponding to the first limiting block 311; a compression spring 23 is fixedly connected to the spring baffle, and the compression spring 23 is fixedly connected to the first stopper 311.
Specifically, when the voltage measuring device is used for a double-hole socket provided with a safety protection door 61, the sliding block 13 moves in the sliding guide groove 11 to be below the ejection positioning groove 14, so that the second plug 22 extends out of the insulation protection seat 2 from the second plug guide hole; then the sliding block 13 moves upwards to the ejection positioning groove 14, and the compression spring 23 drives the anti-deviation lug of the sliding block 13 to be clamped into the anti-deviation groove 15;
when the voltage measuring device is used for a socket which is provided with three jacks and is difficult to insert into for measurement, the state needs to be switched to a single-plug state, and the sliding block 13 moves leftwards in the ejection positioning groove 14 to enable the anti-deviation lug to be separated from the anti-deviation groove 15; the sliding block 13 moves downwards to the sliding guide groove 11, and the compression spring 23 pushes the sliding block 13 to move rightwards to reset, so as to drive the second plug 22 to retract into the insulating protection seat 2 along the second plug guide hole.
After the measurement is finished, the insulation protection base 2 drives the first plug 21 and the second plug 22 to be pulled out from the left jack and the right jack of the socket, and drives the first plug 21 and the second plug 22 to retract into the insulation protection base 2 along the first plug guide hole and the second plug guide hole respectively through the first plug telescopic mechanism and the second plug telescopic mechanism 3. The first plug 21 and the second plug 22 are protected, and the service life is prolonged.
The detection identification circuit comprises a signal conversion unit and a micro control unit which are connected in sequence; the signal conversion unit comprises an analog-to-digital converter, the analog-to-digital converter is connected to the signal input end of the micro control unit, and the detection antenna is connected to the input end of the analog-to-digital converter.
The signal prompt module comprises a voltage warning lamp which is fixed on the shell 1 and connected with the micro control unit 4; the voltage warning lamp comprises a first light emitting diode and a second light emitting diode, and the first light emitting diode and the second light emitting diode are connected to a first output end and a second output end of the micro control unit 4 respectively.
The first light emitting diode is a red light emitting diode, and the second light emitting diode is a green light emitting diode.
Specifically, a reference threshold is preset in the micro control unit 4, and during measurement, the first plug 21 is inserted into any end jack of the socket;
when the detection antenna measures that a voltage signal higher than the reference threshold exists, the micro control unit 4 judges that the measurement target of the detection antenna is a live wire and controls the first light emitting diode to light, and then the voltage warning lamp lights red light;
when the detection antenna cannot measure the voltage signal or measures that the voltage signal lower than the reference threshold exists, the micro control unit 4 judges that the measurement target is a zero line and controls the second light emitting diode to be lightened, and then the voltage warning lamp is lightened to emit green light;
in addition, the reference threshold is set according to voltage standards of different national regions and is an accurate numerical value, in a preferred embodiment, a plurality of reference thresholds are preset, and before voltage signals converted by the analog-to-digital converter are acquired, a proper reference threshold is selected according to the national region where a worker is located; the setting principle of the reference threshold is as follows: the national standard socket is equivalent to an alternating power supply, an alternating electric field is formed around the socket, and the antenna is stretched into the alternating electric field, so that corresponding alternating voltage can be induced; meanwhile, because factors such as environment and the like are interfered by other non-test target electric fields and the like, misleading signals are generated, but during testing, the antenna is inserted into the jack of the socket and protected by the socket shell, so that the interference signals can be reduced to the minimum, therefore, a reference threshold is set, when the test signal is smaller than the reference threshold, the test signal is regarded as the interference signal, and the signal is not transmitted to the next step, so that the subsequent judgment is not influenced; if the reference threshold is not set, the interference signal is allowed to continue to be transmitted, and subsequent judgment is interfered, so that serious potential safety hazard is brought.
The signal prompting module also comprises a buzzer arranged in the shell 1; the buzzer is connected with the third output end of the zero-live wire detection and identification device through an NPN type triode; the emitter of the NPN type triode is grounded, and the collector and the base of the NPN type triode are respectively connected with the buzzer and the third output end of the micro control unit 4.
Specifically, when the detecting antenna measures that a voltage signal higher than the reference threshold exists, the micro control unit 4 controls the buzzer to alarm, so that an operator is reminded that the measuring target is dangerous, and the use safety is improved; when the voltage measuring device is used for detecting under strong light or insolation, operators cannot see clearly due to insufficient brightness of the first light emitting diode and the second light emitting diode, but the voltage measuring device can be suitable for the working environment of the strong light or the insolation through the arrangement of the buzzer.
When a socket with a safety protection door 61 in a new national standard is detected, the sliding block 13 moves in the sliding guide groove 11 to the position below the ejection positioning groove 14, so that the second plug 22 extends out of the insulation protection seat 2 from the second plug guide hole; then the sliding block 13 moves upwards to the ejection positioning groove 14, and the compression spring 23 drives the anti-deviation lug of the sliding block 13 to be clamped into the anti-deviation groove 15; similarly, the first plug telescoping mechanism drives the first plug 21 to extend out of the insulation protection seat 2 from the first plug guiding hole;
the first plug 21 and the second plug 22 are respectively inserted into the left jack and the right jack of the socket, the first plug 21 and the second plug 22 apply force together along the direction perpendicular to the safety protection door 61 to squeeze and open the safety protection door 61 and push the head ends of the first plug 21 and the second plug 22 to respectively press close to the live wire live body 62 and the zero wire live body 62 of the socket;
when the detection antenna measures that a voltage signal higher than the reference threshold exists, the micro control unit 4 judges that the measurement target of the detection antenna is a live wire and controls the first light emitting diode to light, and then the voltage warning lamp lights red light;
when the detection antenna cannot measure the voltage signal or measures that the voltage signal lower than the reference threshold exists, the micro control unit 4 judges that the measurement target is a zero line and controls the second light emitting diode to be lightened, and then the voltage warning lamp is lightened to emit green light;
after the measurement is finished, the first plug 21 and the second plug 22 are pulled out from the left jack and the right jack of the socket, and the first plug 21 and the second plug 22 are respectively driven to retract into the insulating protection seat 2 along the first plug guide hole and the second plug guide hole through the first plug telescopic mechanism and the second plug telescopic mechanism 3.
The utility model has reasonable and ingenious design and convenient detection, and can jack the safety protection door 61 through the first plug 21 and the second plug 22 in a cooperative manner, so that the detection antenna can be closer to the charged body 62 in the socket, and the measurement accuracy is ensured; the first plug telescoping mechanism and the second plug telescoping mechanism 3 are used for controlling the telescoping of the first plug 21 and the second plug 22, so that the application range of the device is expanded, and the requirements of vast users are met; in addition, after the detection is finished, the first plug 21 and the second plug 22 can be retracted into the insulation protection seat 2, so that the service life of the device is prolonged.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. The technical solution of the present invention can be used by anyone skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, using the technical means and contents disclosed above, without departing from the scope of the technical solution of the present invention. Therefore, the equivalent changes made according to the shape, structure and principle of the present invention should be covered in the protection scope of the present invention.
Claims (10)
1. The utility model provides a voltage equipment is surveyed to plug telescopic double plug which characterized in that includes: the device comprises a shell, a signal prompt module arranged on the shell and a detection identification circuit arranged in the shell;
an insulation protection seat is fixed at the front end of the shell, and a first plug and a second plug which are used for jacking the socket safety protection door and extending into the socket jack are arranged on the insulation protection seat;
the signal prompting module is connected with the output end of the detection identification circuit, and a detection antenna connected with the input end of the detection identification circuit is fixed in the first plug;
and a first plug telescopic mechanism and a second plug telescopic mechanism which respectively drive the first plug and the second plug to extend out and retract in the insulating protection seat are also arranged in the shell.
2. The apparatus for measuring voltage with two retractable plugs according to claim 1, wherein the insulating protection base is provided with a first plug guiding hole and a second plug guiding hole, and the first plug and the second plug are respectively inserted into the first plug guiding hole and the second plug guiding hole.
3. The plug-retractable dual-plug voltage measuring device according to claim 2, wherein the first plug retracting mechanism and the second plug retracting mechanism are the same;
the second plug telescopic mechanism comprises a power assisting plate and a sliding guide groove which is arranged on the inner wall of the shell and corresponds to the second plug guide hole, and the power assisting plate is movably arranged in the sliding guide groove;
the second plug is fixedly connected with the power assisting plate.
4. The double-plug voltage measuring device with the retractable plug according to claim 3, wherein a retractable guide groove is formed through the inner wall surface and the outer wall surface of the shell corresponding to the sliding guide groove, and a sliding block is movably mounted in the retractable guide groove;
the boosting plate is vertically provided with a first limiting block and a second limiting block, a connecting plate is movably arranged between the first limiting block and the second limiting block, and the sliding block is fixedly connected with the connecting plate.
5. The apparatus for measuring voltage with dual plugs according to claim 4, wherein the sliding guide slot has an ejecting positioning slot extending from the upper end thereof;
the right end of the ejection positioning groove is provided with an anti-deviation groove, and an anti-deviation lug is fixed on the sliding block corresponding to the anti-deviation groove.
6. The double-plug voltage measuring device with the retractable plug according to claim 5, wherein a spring baffle is arranged on the inner wall of the insulation protection seat corresponding to the first limiting block;
and the spring baffle is fixedly connected with a compression spring which is fixedly connected with the first limiting block.
7. The double-plug voltage measuring device with the retractable plug according to claim 1, wherein the detection and identification circuit comprises a signal conversion unit and a micro control unit which are connected in sequence;
the signal conversion unit comprises an analog-to-digital converter, the analog-to-digital converter is connected to the signal input end of the micro control unit, and the detection antenna is connected to the input end of the analog-to-digital converter.
8. The double-plug voltage measuring device with the retractable plug according to claim 7, wherein the signal prompt module comprises a voltage warning lamp, and the voltage warning lamp is fixed on the shell and connected with the micro control unit;
the voltage warning lamp comprises a first light emitting diode and a second light emitting diode, and the first light emitting diode and the second light emitting diode are connected to a first output end and a second output end of the micro control unit respectively.
9. The plug-retractable dual-plug voltage measuring apparatus of claim 8, wherein said first light emitting diode is a red light emitting diode and said second light emitting diode is a green light emitting diode.
10. The dual-plug voltage measuring device with the retractable plug of claim 8, wherein the signal prompt module further comprises a buzzer disposed in the housing;
the buzzer is connected with the third output end of the zero-live wire detection and identification device through an NPN type triode;
the emitter of the NPN type triode is grounded, and the collector and the base of the NPN type triode are respectively connected with the buzzer and the third output end of the micro control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921528304.XU CN210954160U (en) | 2019-09-16 | 2019-09-16 | Double-plug voltage measuring device with telescopic plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921528304.XU CN210954160U (en) | 2019-09-16 | 2019-09-16 | Double-plug voltage measuring device with telescopic plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210954160U true CN210954160U (en) | 2020-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921528304.XU Active CN210954160U (en) | 2019-09-16 | 2019-09-16 | Double-plug voltage measuring device with telescopic plug |
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| Country | Link |
|---|---|
| CN (1) | CN210954160U (en) |
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2019
- 2019-09-16 CN CN201921528304.XU patent/CN210954160U/en active Active
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