CN208297600U

CN208297600U - It is a kind of contactless every sky detection firewire test pencil

Info

Publication number: CN208297600U
Application number: CN201821036553.2U
Authority: CN
Inventors: 李文献; 王富强; 李俊峰
Original assignee: Shanxi Jian Bang Group Casting Co Ltd
Current assignee: Shanxi Jian Bang Group Casting Co Ltd
Priority date: 2018-07-03
Filing date: 2018-07-03
Publication date: 2018-12-28
Anticipated expiration: 2028-07-03

Abstract

The utility model relates to a kind of contactless every sky detection firewire test pencil, including pen container, battery and circuit board, the circuit board includes transistor Q I, Q II and Q III, light emitting diode D, the collector and emitter of the transistor Q I is connected to the positive and negative end of power supply, the light emitting diode D is connected between the collector of transistor Q I and the anode of power supply, the anode of the collector connection power supply of the transistor Q II, emitter connects the base stage of the transistor Q I, the anode of the collector connection power supply of the transistor Q III, emitter connects the base stage of the transistor Q II, base stage connects antenna probes, the contactless of the utility model detects firewire test pencil every sky, it just may indicate whether to charge without direct trolley wire, it is easy to use, it reduces House decoration, installation electric appliance damage the unnecessary trouble of concealed wire, avoid personnel's Danger Electric shock risk, greatly improve personal safety.

Description

It is a kind of contactless every sky detection firewire test pencil

Technical field

The utility model relates to a kind of test pencils, and in particular to a kind of contactless every sky detection firewire test pencil.

Background technique

Currently, the test pencil that we use all is the luminous direct contact type test pencil of neon bulb, when there is electricity, electroprobe is shinny, There are also a kind of digital display direct contact type test pencils, and directly contact with firewire and just have instruction, and both the above test pencil is all Directly contacting firewire could indicate to increase personal Danger Electric shock risk factor with not charged.And the concealed wire in house ornamentation or workshop When needing to have tested whether electricity, current neon bulb test pencil and digital display test pencil require direct trolley wire core and carry out surveying electricity, Great inconvenience is caused, especially in house ornamentation, is easy to dig power-off line in the construction process if not detecting concealed wire, cause not Necessary loss.

Summary of the invention

It is contactless every sky detection firewire test pencil that the purpose of the utility model is to provide one kind, does not have to direct trolley wire It just may indicate whether to charge, it is easy to use, house decoration, the installation electric appliance damage unnecessary trouble of concealed wire are reduced, personnel are avoided Danger Electric shock risk greatly improves personal safety.

One kind of the utility model is contactless to detect firewire test pencil, including pen container, battery and circuit board every sky, described Battery and circuit board electrical connection, the circuit board and battery are all set in pen container, the circuit board include transistor Q I, The collector and emitter of Q II and Q III, light emitting diode D, the transistor Q I are connected to the positive and negative anodes two of power supply End, the light emitting diode D are connected between the collector of transistor Q I and the anode of power supply, and light emitting diode D just connects, The anode of the collector connection power supply of the transistor Q II, emitter connects the base stage of the transistor Q I, described The anode of the collector connection power supply of transistor Q III, emitter connect the base stage of the transistor Q II, and base stage connects Antenna probes are connect, the front end of pen container is stretched out in the front end of the antenna probes, and the cathode of the power supply is contacted with the rear cover of pen container, just Pole and circuit board contacts.

Preferably, the model triode 9014 of described transistor Q1, Q2, Q3 carries out the signal received high Amplify again.

Preferably, the battery is equipped with one, and handwriting is dexterous, easy to carry.

Preferably, the antenna probes are the conductor wire that front end is circle, and investigative range is wide.

Preferably, the pen container rear cover is threadedly coupled with pen container, is convenient for changing battery.

The contactless of the utility model detects firewire test pencil every sky, needs by the way that the antenna probes of test pencil front end are close The region of electric wire is detected, the distance of proximity test electric wire is 30-50cm, and antenna probes sense faint electric signal by brilliant The amplification of body triode, the light emitting diode D institute's search coverage that shines have an electricity, light emitting diode D do not shine illustrate institute's search coverage without Electricity.

The contactless of the utility model detects firewire test pencil every sky, does not need directly with line contacts, it is only necessary to It is detected in short range, is particularly suitable for the detection of house ornamentation and electric appliance concealed wire electricity, avoids personnel's Danger Electric shock risk, greatly improve Personal safety.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the circuit diagram of the utility model.

Specific embodiment

With reference to the accompanying drawing, the utility model is described in further detail:

As shown in Figure 1 and Figure 2, a kind of contactless every sky detection firewire test pencil, including pen container 1, battery 8 and circuit board 2, the battery 2 is electrically connected with circuit board 8, and the circuit board 2 is all set in pen container 1 with battery 2, and the circuit board 2 includes Transistor Q I 3, Q II 4 and Q III 5, three pole of model of light emitting diode D6, the transistor Q I 3, Q II 4, Q III 5 Pipe 9014, the collector and emitter of the transistor Q I 3 are connected to the positive and negative end of power supply, described to shine two Pole pipe D6 is connected between the collector of transistor Q I 3 and the anode of power supply, and light emitting diode D6 just connects, the crystal three The anode of the collector connection power supply of pole pipe Q II 4, emitter connect the base stage of the transistor Q I 3, three pole of crystal The anode of the collector connection power supply of pipe Q III 5, emitter connect the base stage of the transistor Q II 4, and base stage connects antenna The front end of pen container 1 is stretched out in probe 7,7 front end of antenna probes, and antenna probes 7 are the conductor wire that front end is circle, the power supply Cathode contacted with the rear cover of pen container 1, anode contacted with circuit board 2.

When it is implemented, proximity test is electric by the antenna probes 7 of test pencil front end close to the region for needing to detect electric wire The distance of line is 30-50cm, and antenna probes 7 sense that faint electric signal amplifies by transistor Q I 3, Q II 4, Q III 5, The luminous institute's search coverage of light emitting diode D6 has electricity, and light emitting diode D6, which does not shine, illustrates institute's search coverage without electricity.

Claims

1. a kind of contactless every sky detection firewire test pencil, it is characterised in that including pen container, battery and circuit board, the battery With circuit board electrical connection, the circuit board and battery are all set in pen container, and the circuit board includes transistor Q I, Q II It is connected to the positive and negative end of power supply with the collector and emitter of Q III, light emitting diode D, the transistor Q I, The light emitting diode D is connected between the collector of transistor Q I and the anode of power supply, and light emitting diode D just connects, institute The anode of the collector connection power supply of transistor Q II is stated, emitter connects the base stage of the transistor Q I, the crystalline substance The anode of the collector connection power supply of body triode Q III, emitter connect the base stage of the transistor Q II, base stage connection The front end of pen container is stretched out in antenna probes, the front end of the antenna probes, and the cathode of the power supply is contacted with the rear cover of pen container, anode With circuit board contacts.

2. according to claim 1 contactless every sky detection firewire test pencil, it is characterised in that the transistor The model triode 9014 of Q1, Q2, Q3.

3. according to claim 1 contactless every sky detection firewire test pencil, it is characterised in that the battery is equipped with one It is a.

4. contactless firewire test pencil is detected every sky according to claim 1, it is characterised in that the antenna probes are Front end is the conductor wire of circle, and investigative range is wide.

5. it is according to claim 1 it is contactless every sky detect firewire test pencil, it is characterised in that the pen container rear cover with Pen container is threadedly coupled.