CN2405228Y

CN2405228Y - Universal electric testing device having sound control device

Info

Publication number: CN2405228Y
Application number: CN 00224004
Authority: CN
Inventors: 陈耀生
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-01-01
Filing date: 2000-01-01
Publication date: 2000-11-08
Anticipated expiration: 2010-01-01

Abstract

The utility model relates to a universal electric testing device having a sound control device. The utility model comprises a contact head, a metal tail cap, a high value resistor, a neon tube, a metal spring, etc. The utility model is characterized in that the utility model is provided with an electron tube, wherein, one end of which is connected with the contact head, and the other end of which is connected in series with a micro cell; the utility model is provided with a self test glow visualization circuit which is composed of the metal spring connected with the metal tail cap, a voltage display circuit which is composed of a digital display plate which is provided with a button and is connected with the contact head, etc., and a sound control device, wherein, both terminals of which are corresponding to the metal spring connected with the metal tail cap. The universal electric testing device has the advantages of small volume, low cost, reasonable structure, more functions, high testing accuracy, convenient usage and carry, high safety, and wide adaptation range.

Description

A kind of general-purpose electroscope with sound-controlled apparatus

The utility model relates to the survey electric installation that a kind of electrician uses.

Before this, whether electric personnel check object charged, usually usefulness is test pencil, this test pencil is made up of contact, resistance, neon bulb, spring, metal cap etc., as long as the contact electrification body will make electrified body, test pencil, human body and the earth constitute a closed-loop path and cause neon bulb to send aura.Because this test pencil only is provided with a viewport, and aura is not obvious, particularly in the stronger open air use of light, is difficult to determine whether aura, even covers viewport with hand and also be difficult to distinguish.If the built on stilts primary cable of chance work high above the ground inspection on electric pole is more apparent difficulty just.Moreover because this kind test pencil has only a neon tube,, just can't understand fully whether testee has electricity, can not measure the break-make of the magnitude of voltage or the circuit of object if neon tube damages, thereby function singleness, non insurance easily causes security incident.Another kind is a multimeter, though can measure the numerical value such as voltage, electric current of electrified body, whether the indication testee is charged, but because of its volume is bigger, the cost height, and need to use two contacts, thereby portably using inconvenience, particularly outdoor work high above the ground more brings difficulty to electrician's operation.

The purpose of this utility model is to provide a kind of general-purpose electroscope with sound-controlled apparatus, accomplishes to test accurate, and volume is little, portably uses conveniently.Function is many, and cost is low, and purposes is wide, and is stable and reliable for performance.

The utility model is realized by following approach: the general-purpose electroscope of this band sound-controlled apparatus, the aura display circuit that the spring that it comprises contact, metal tail cap, high value resistor that links to each other with contact, be arranged at the neon tube of high value resistor other end, link to each other with metal tail cap is formed.When hand metal tail cap compression spring, spring contacts with one of neon tube, and the neon tube other end contacts with high value resistor, if spring is not compressed, then has certain space between neon tube and spring and the high value resistor.Next has one to link to each other with contact by one, the other end is connected in series the electron tube of a minicell, and the self check aura display circuit of forming by another spring that links to each other with metal tail cap, when this spring is not compressed, spring and minicell do not have connection and have certain interval, when compression spring, spring and minicell are connected.The digital display board that links to each other by with contact is arranged again, the voltage display circuit that the knob that is provided with on the digital display board is formed, when pressing knob, digital display board promptly shows the voltage value of testee.Also have sound-controlled apparatus to be fixed on the galvanoscopic sidewall of general-purpose, its two ends are all corresponding with the spring that metal tail cap links to each other, and compression spring contacts with its two-terminal, and sound-controlled apparatus is played, and show that the inner contact of electroscope is good.

Above-mentioned sound-controlled apparatus comprises an integrated package, and as a terminal of sound-controlled apparatus, the other end of integrated package becomes another terminal after being connected in series a micro power behind the end serial connection loudspeaker of integrated package, and integrated package also has connection one electric capacity between the two ends.

The utility model is compared background technology and is had following characteristics:

1, owing to be provided with aura display circuit and self check aura display circuit, make when detecting electrified body luminously in pairs, and electron tube sends stronger light, whether identification is charged easily; If testee is not charged, then the neon tube of aura display circuit is not luminous, and electron tube relies on the small battery in the self check aura display circuit to glimmer, and further specifies this electroscope energy operate as normal, confirms that testee is not charged.

2, whether owing to be provided with voltage display circuit, it is charged both can to have tested testee by it, and can measure its voltage what are, can further distinguish charged on testee according to magnitude of voltage is contact electrification or induced electricity.

3, owing to be provided with sound-controlled apparatus, well whether the contact that then can find out electricity measurer inside.

4, this electroscope survey that the electricity insurance is reliable, stable performance, rational in infrastructure, cost is low, use is easy to carry, more can be adapted to military affairs, open-air electrical verification operation.

Fig. 1 is an electrical block diagram of the present utility model.

Fig. 2 is a sound-controlled apparatus electrical block diagram of the present utility model.

Now with embodiment the utility model is described in further detail with reference to the accompanying drawings:

As shown in the figure, the general-purpose electroscope of this band sound-controlled apparatus comprises contact 1, metal tail cap 8, by a high value resistor 2 that links to each other with contact 1, be arranged on the neon tube 3 of high value resistor 2 other ends, the aura display circuit that the metal spring 4 that links to each other with metal tail cap 8 is formed.When hand metal tail cap 8, metal spring 4 pressurizeds contract and contact with 3 one of neon tubes, and the other end of neon tube 3 contacts with high value resistor 2; If metal spring 4 is not compressed, then there is certain space between neon tube 3 and metal spring 4 and the high value resistor 2.Next has by an end and links to each other with contact 1, the electron tube 5 of other end serial connection minicell 6, the self check aura display circuit of metal spring 16 compositions that link to each other with metal tail cap 8.When metal spring 16 was not compressed, metal spring 16 was not connected with minicell 6 and is had certain interval, and when compressed metal spring 16, metal spring 16 is connected in series UNICOM with minicell 6.Again by by the digital display board that links to each other with contact 17 be arranged at the voltage display circuit that the knob 15 on the digital display board 7 is formed.When pressing knob 15, digital display board 7 promptly shows the voltage value of testee.Also have sound-controlled apparatus 9 to be fixed on the galvanoscopic survey wall of general-purpose.Two terminals a, the b of sound-controlled apparatus 9 is corresponding with the metal spring 14 on being connected in metal tail cap 8, be serially connected with the serial connection electric capacity 10 between the two ends in addition of loudspeaker 13, integrated package 12, minicell 11, integrated package 12 between two terminals a, b successively, compressed metal spring 14 contacts with two terminals a, b, sound-controlled apparatus 9 is played, shown that the inner contact of general-purpose electroscope is good.

Before the use, catch and touch the galvanoscopic two ends of general-purpose, electron tube 5 glimmers, and shows that electron tube 5 is normal, finishes self check.

During use, metal contact 1 contact measured conductor, press metal tail cap 8 more earlier, sound-controlled apparatus sends the sound, shows that each parts in the general-purpose electroscope all contact well.

Directly contact positive source with contact 1, neon tube 3 is luminous, 5 high lights of electron tube, press knob 15 and can show cathode voltage, directly contact power cathode (zero line) with contact 1, neon tube 3 is not luminous, and electron tube 5 glimmers, press knob 15 and can show negative pole (zero line) voltage, in order to judge the both positive and negative polarity of power supply.

Whether when breaking in the middle of checking uncharged lead, available tested lead two ends contact contact 1 and metal tail cap 8 respectively, press metal tail cap 8 again, if electricity has low-light in pipe 5, lead is intact during table, if electron tube 5 does not work, show conductor cord disconnection, also can search the position of conductor cord disconnection according to this.

When detecting induced voltage, testee palpus ground connection contacts testee with contact, if neon tube 3 is luminous with electron tube 5, induced voltage is then arranged, and can show the size of induced voltage by digital display board; If all not luminous, no-voltage shows again, and non-inductive voltage is described.

When the zero line that detects alternating current, phase line, when 0 volt of voltage of digital display board demonstration, explanation is a zero line, if show phase voltage, then shows it is phase line, uses digital display board to show that tested voltage can directly detect the AC and DC of 12-220V.

Claims

1, a kind of general-purpose electroscope aura display circuit of comprising contact (1), metal tail cap (8), forming by a high value resistor (2) that links to each other with contact (1), the neon tube (3) that is arranged on high value resistor (2) other end, the metal spring (4) that links to each other with metal tail cap (8) with sound-controlled apparatus, it is characterized in that having by an end and link to each other with contact (1), the electron tube (5) of other end serial connection minicell (6), the self check aura display circuit that the metal spring (16) that links to each other with metal tail cap (8) is formed; Have by the digital display board (7) that links to each other with contact (1) again and be arranged at the voltage display circuit that the knob (15) on the digital display board (7) is formed; Also have its two terminals (a, b) and the corresponding sound-controlled apparatus of metal spring (14) (9) that is connected on the metal tail cap (8).

2, a kind of general-purpose electroscope according to claim 1 with sound-controlled apparatus, it is characterized in that sound-controlled apparatus (9) comprises loudspeaker (13), integrated package (12), the minicell (11) of serial connection successively, the electric capacity (10) that is connected in series between the two ends in addition of integrated package (12).