CN2069569U

CN2069569U - Numeral speedy wire checking instrumest

Info

Publication number: CN2069569U
Application number: CN 90207812
Authority: CN
Inventors: 刘正兴
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-05-25
Filing date: 1990-05-25
Publication date: 1991-01-16

Abstract

The utility model relates to a device exclusively used for installing, maintaining, repairing or tearing down cables or electric wires, in particular to a wire checking device for cables or wires. The digital speedy wire checking apparatus comprises an emitting apparatus and a receiving apparatus which are connected to the both ends of a cable or an electric wire respectively. The emitting apparatus comprises a switch, an oscillation circuit, a shaping circuit, a frequency division circuit, a counting circuit, a decoding circuit, a triggering circuit, a control circuit, a power amplifier circuit, etc. The receiving apparatus comprises a shaping circuit, a counting circuit, a display circuit, etc. Enabling signal loops are installed on the emitting apparatus and the receiving apparatus respectively. The utility model has the advantages of speediness, accuracy, direct viewing, high work efficiency and less power consumption. The utility model which can also judge short circuits and open circuits is an ideal wire checking tool for cables or electric wires in the departments of electric power, communication, broadcast, etc.

Description

Numeral speedy wire checking instrumest

The utility model relate to be exclusively used in installation, maintenance, repair or the equipment, particularly cable of dismounting cable or electric wire or electric wire to line equipment.

Existing electron pair line equipment, it is step-type to have plenty of order, and work efficiency is lower; Though what have can not have numeral to show that perhaps power consumption is bigger fast to line yet.

The purpose of the utility model is to provide the novel electron cable alignment apparatus that a kind of work efficiency is higher, power consumption is less, numeral shows.

Realize that the embodiment shown in technical scheme that foregoing invention creates purpose in conjunction with the accompanying drawings is illustrated.

Accompanying drawing 1 is a transmitter electrical principle block diagram.Among the figure: 1. on-off circuit, 2. multi-resonant oscillating circuit, 3. transponder pulse shaping circuit, 4. frequency division and counting circuit, 5. decoding scheme, 6. trigger circuit, 7. AND circuit, 8. power amplifier, 9. output terminal, 10. amplifier power supply on-off circuit, 16. negative circuits, 17. monostable circuits.

Accompanying drawing 2 is receiving instrument electrical principle block diagrams.Among the figure: 11. input ends, 12. received pulse shaping circuits, 13. counting circuits, 14. display circuits, 15. twitter circuits that disappear.

Accompanying drawing 3 is transmitter front views.Among the figure: 1. concentric line binding post, 2. treat the survey line binding post, 3. transmitter housing, 4. emission power switch, 5. expansion bearing, 6. socket, 7. segment switch, 8. fm dial.

Accompanying drawing 4 is transmitter electrical schematic diagrams.

Accompanying drawing 5 is receiving instrument front views.Among the figure: 9. display, 10. start button, 11. receiving instrument housings, 12. receive power switches, and 13. survey lines.

Accompanying drawing 6 is receiving instrument electrical schematic diagrams.

Digital quick cable alignment apparatus comprises transmitter and receiving instrument two parts, is connected on the two ends of cable or electric wire respectively.

Transmitter is successively by on-off circuit 1(F ₁, K ₁, R ₁, C ₁), multi-resonant oscillating circuit 2(F ₅, F ₆, R ₆, R ₇, C ₅), transponder pulse shaping circuit 3(F ₇, F ₈), frequency division and counting circuit 4, decoding scheme 5, trigger circuit 6, AND circuit 7, power amplifier 8 form.More than each circuit be cascaded and place in the transmitter housing 3.Concentric line binding post 1, treat survey line binding post 2, socket 6, emission power switch (K ₁) 4, segment switch (ZK) 7, fm dial (R ₇) 8 place on transmitter housing 3 panels.

Frequency division and counting circuit 4 are by segment switch ZK and up counter F ₉Form.The F of transponder pulse shaping circuit 3 ₈Output terminal is connected on F ₉On the 10th pin, ZK is connected on F ₉On the 11st～14 pin.

Decoding scheme 5 is by four---16 code translator F ₁₀Form.F ₉The 3rd～6 pin is received F ₁₀2nd, on 3,21,22 pin.

F ₁₀The 4th～10,13～20 pin are exported, and receive the F of 15 road R-S trigger circuit 6 respectively ₁₁～F ₂₅Input end.

F ₁₁～F ₂₅Output terminal receive the F of 15 tunnel AND circuit 7 respectively ₂₆～F ₄₀An input end.

F ₂₆～F ₄₀Output terminal receive by F respectively ₄₁～F ₅₆, R ₁₀～R ₂₄The input end of 15 road power amplifiers of forming 8.

The output terminal of power amplifier is received treating on survey line binding post 2 or the socket 6 on transmitter housing 3 panels.

The F of frequency division and counting circuit 4 ₉The F of output of the 2nd pin and AND circuit 7 ₂₆～F ₄₀Another input end all connect.

The F of decoding scheme 5 ₁₀The F of the 15th pin and on-off circuit 1 ₁Be connected to diode D between the 13rd pin ₁

The F of power amplifier 8 and on-off circuit 1 ₁Amplifier power supply on-off circuit 10 is housed between the 10th pin, and this circuit is by F ₅₇, BG ₁, R ₈, R ₉Form.

An expansion board is housed in the transmitter housing 3.Transmitter can be to 30 lines.Cable core or electric wire surpass 30, can also expand again.The printed circuit board of the expansion of inserting is arranged on the transmitter and connect the expansion bearing 5 of post case, can will expand to 45,60 etc. to line quantity.

Receiving instrument is successively by received pulse shaping circuit 12(F ₅₈, R ₂₅), counting circuit 13(F ₅₉), display circuit 14(F ₆₀, F ₆₁, F ₆₃, R ₃₀, C ₆And display) forms.Above circuit is cascaded and places in the receiving instrument housing 11.Display 9, start button (QA) 10, detection line 13 place on receiving instrument housing 11 panels, and surveying line 13 has two, connect red, black two clips.

The enabling signal loop comprises the R-S that is contained on the receiving instrument input end 11 twitter circuit 15(F that disappears ₆₂, BG ₂, QA, K ₂, R ₂₆～R ₂₉), be contained in the F of transmitter on-off circuit 1 ₁Negative circuit 16(F between the 8th pin and the 10th pin ₄, R ₅), monostable circuit 17(F ₂, F ₃, R ₁～R ₃, C ₂～C ₄).

Digital quick cable alignment apparatus principle of work is as follows.

In the transmitter, the square wave (pulse) that multivibrator produces is through F ₇, F ₈After the shaping, send into the frequency division sum counter.The purpose of frequency division is the cycle that changes square wave, and to remote conveying, it switches by segment switch ZK.

One tunnel input up counter F behind the frequency division ₉Counting, another road sends square wave and door F in streams to a place ₂₆～F ₄₀Each input end.

Four---16 code translator F ₁₀To F ₉The square wave decoding of sending here is carried a positive pulse to the R-S trigger then successively, makes the upset of R-S trigger, is output as 0, thus the number of control and door output square wave.For example as counter F ₁₀After having counted a square wave, positive pulse of the 9th pin output, the R-S trigger F that joins with it ₂₅Upset, output make and door F by 1 → 0 ₄₀An input end be 0, although F ₄₀Another input end square wave input is still arranged continuously, but F after this ₄₀Output terminal be always 0, that is to say that this and door can only outwards export a square wave.In like manner, as counter F ₁₀After having counted two square waves, positive pulse of the 10th pin output, R-S trigger F ₂₄Upset makes and door F ₃₉An input end be 0, make F ₃₉Can only outwards export two square waves, the rest may be inferred by analogy for it.

Work as F ₁₀After having counted 15 square waves, positive pulse of the 15th pin output makes the F that joins with it on the one hand ₂₆Close after exporting 15 square waves, on the other hand by diode D ₁Make R-S trigger F ₁Upset.F ₁After the upset, three variations have taken place in circuit: the one, closed multivibrator, and the 2nd, pass through F ₅₇Just the broken power supply of power amplifier 8, the 3rd, make F ₄Input be high-impedance state, with the enabling signal of prepare accepting to send from receiving instrument.So far, a battery has fired, it is static that radiating circuit is.

In receiving instrument one side, after input end receives the square-wave signal of transmitter output, through F ₅₈Shaping is by F ₅₉Counting is shown the square wave number by display circuit again on display.For example, be connected on the lead that transmitter is treated on the survey line binding post 2 for No. 2, to 2 square waves of receiving instrument transmission.When the red clip of receiving instrument detection line rode on this lead, display just showed " 2 " word, and then this lead is exactly No. 2 lines.

The enabling signal loop is contained in respectively on transmitter and the receiving instrument.They rely on concentric line and are carried out connecting of electricity by survey line.During transmit square waves, F ₁Be output as 0, F ₄Conducting, output also is 0, concentric line is as the interconnection of transmitter and receiving instrument negative electrode, by survey line as the square wave transmission line.And during sending enabling signal, by the interconnection of survey line as transmitter and receiving instrument negative electrode, concentric line is as the pipeline of carrying positive pulse.

The receiving instrument enabling signal adopts three attitude R-S twitter circuit that disappears, when being not activated signal, and F ₆₂Output pin the 1st and the 2nd pin are high-impedance state, BG ₂End, press start button QA after, F ₆₂The 1st pin is output as 0, the 2 pin and is output as 1, BG ₂Conducting, the concentric line current potential is by 0 → 1.Because all output terminals of transmitter all are 0 level between quiescent period, the negative electrode of such two instrument is by being connected by survey line, and enabling signal constitutes the loop.After unclamping QA, F ₆₂1st, the output of 2 pin is high-impedance state, BG ₂End, concentric line is by 1 → 0, the C in the monostable circuit 17 ₄Both end voltage can not be suddenlyd change, F ₃Input end 1 → 0, output terminal 0 → 1 produces a positive pulse, makes F ₁Output switching activity is 0, starts multi-resonant oscillating circuit, simultaneously F ₄Be output as 0, constitute launching circuit.At this moment also on of the power supply of power amplifier, the counting beginning.R ₂C ₂The lagging circuit of forming is in order to guarantee that concentric line had the sufficient charge discharging resisting time from 1 → 0 o'clock.

The emission power K switch of closing ₁Moment because R ₁C ₁Positive pulse of differentiating circuit output of forming makes F ₁Be output as 1, radiating circuit cuts out and is static.The loss of power only is the quiescent dissipation of cmos circuit.Only after receiving enabling signal, transmitter is just started working.Behind 15 square-wave signals of emission, circuit is closed again automatically, waits for next enabling signal.So consumed power of whole machine is smaller.

The using method of digital quick cable alignment apparatus is: the numbering that cable or electric wire is connected on transmitter is treated on the survey line binding post 2, perhaps is clipped on the clip of plug, again with in the plug insertion socket 6, and puts the number hoop on each bar lead.To there be that lead or the protective metal shell of special mark to be connected on the concentric line binding post 1, open emission power switch (K ₁) 4.

At the other end of cable or electric wire, the black wire clamp that receiving instrument is surveyed line 13 is clamped the lead or the protective metal shell of special mark, opens and receives power switch (K ₂) 12.Appoint and get a lead to be measured, be clipped on the red wire clamp, click start button (QA) 10, display 9 just shows the number of this lead.Every pair of lead just clicks QA later on.By that analogy, can soon all be treated that survey line is to intact.

If there is not the lead of special mark, when perhaps mark is unclear, can appoint get two leads be clipped in red respectively and the black clip on, click QA, if be shown as " 00 ", the lead of changing on the black line folder tries again, until " 00 " numeral demonstration is in addition arranged.

In to line process, if find to have the numeral demonstration of two leads identical, and the lead on the transmitter binding post does not have short, with regard to these two leads of decidable short circuit phenomenon is arranged each other.If being shown as of a certain lead " 00 ", and the open circuit not of the lead on the transmitter binding post would then illustrate this open wires.

The utility model adopts digital direct-reading, fast, accurately, directly perceived, increased substantially work efficiency, and power consumption is little, also have the accurate whether function of short circuit or open circuit of lead of judging.It is the ideal tools of department's cables such as electric power, communication, broadcasting or wire pair line.

Embodiment shown in the drawings is the digital quick cable alignment apparatus of SKD-1 type.The physical dimension 180 * 40 * 130 of transmitter, the physical dimension 55 * 25 * 100 of receiving instrument.In the transmitter electrical schematic diagram, F ₁, F ₂, F ₃Be CC4001, F ₄Be CC4502, F ₅～F ₈Be CC4001 * 2, F ₉Be CC4520, F ₁₀Be CC4514, F ₁₁～F ₂₅Be CC2001 * 8, F ₂₆～F ₄₀Be CC4081 * 4, F ₄₁～F ₅₆Be CH906 * 3, F ₅₇Be CH906.BG ₁Be 3CG14A, D ₁Be 2CK82A, R ₁, R ₃, R ₄Resistance 1M, R ₂500K, R ₅51K, R ₆100K, R ₇2M, R ₈50K, R ₉20K, R ₁₀～R ₂₄30K * 15.C ₁, C ₃, C ₄Capacity be 0.22 μ f, C ₂0.056 μ f, C ₅0.01 μ f.Supply voltage V _DDBe 9V.In the receiving instrument electrical schematic diagram, F ₅₈Be CH40106, F ₅₉Be CC4518, F ₆₀, F ₆₁Be C306, F ₆₂Be CC4043, F ₆₃Be CH4047, BG ₂Be 3DG8B, R ₂₅, R ₃₀Resistance be 100K, R ₂₆51K, R ₂₇20K, R ₂₈, R ₂₉1M.C ₆Capacity be 0.022 μ f, supply voltage V _DDBe 9V.

Claims

A kind of digital quick cable alignment apparatus comprises transmitter and receiving instrument two parts, and transmitter is successively by on-off circuit 1 (F ₁, K ₁, R ₁, C ₁), multi-resonant oscillating circuit 2 (F ₅, F ₆, R ₆, R ₇, C ₅), transponder pulse shaping circuit 3 (F ₇, F ₈), frequency division and counting circuit 4, decoding scheme 5, trigger circuit 6, AND circuit 7, power amplifier 8 form, more than each circuit be cascaded and place in the transmitter housing (3), concentric line binding post (1), treat survey line binding post (2), emission power K switch ₁(4), segment switch ZK (7), fm dial R ₇(8) place on transmitter housing (3) panel, receiving instrument is successively by received pulse shaping circuit 12 (F ₅₈, R ₂₅), counting circuit 13 (F ₅₉), display circuit 14 (F ₆₉, F ₆₁, F ₆₃, R ₃₀, C ₆And display) form, above circuit is cascaded and places in the receiving instrument housing (11), display (9), start button QA (10), reception power switch K ₂(12), survey line (13) and place on receiving instrument housing (11) panel, it is characterized in that:

A, frequency division and counting circuit 4 are by segment switch ZK and up counter F ₉Form the F of transponder pulse shaping circuit 3 ₈Output terminal is connected on F ₉On the 10th pin, ZK is connected on F ₉On the 11st～14 pin, decoding scheme 5 is by four-16 code translator F ₁₀Form F ₉The 3rd～6 pin is received F ₁₀2nd, on 3,21,22 pin, F ₁₀The 4th～10,13～20 output pins are received the F of 15 road R-S trigger circuit 6 respectively ₁₁～F ₂₅Input end, F ₁₁～F ₂₅Output terminal meet the F of 15 tunnel AND circuit 7 respectively ₂₆～F ₄₀An input end, F ₂₆～F ₄₀Output terminal receive by F respectively ₄₁～F ₅₆, R ₁₀～R ₂₄The input end of 15 road power amplifiers of forming 8, the output terminal of power amplifier 8 is received treating on survey line binding post (2) or the socket (6) on transmitter housing (3) panel;

The F of b, frequency division and counting circuit 4 ₉The F of the 2nd pin and AND circuit 7 ₂₆～F ₄₀Another input end is connected, the F of decoding scheme 5 ₁₀The F of the 15th pin and on-off circuit 1 ₁Be connected to second tube sheet D between the 13rd pin ₁, the F of power amplifier 8 and on-off circuit 1 ₁Amplifier power supply on-off circuit 10 is housed between the 10th pin, and this circuit is by F ₅₇, BG ₁, R ₈, R ₉Form;

C, enabling signal loop comprise the R-S that is contained on the receiving instrument input end 11 twitter circuit 15 (F that disappear ₆₂, BG ₂, QA, K ₂, R ₂₆～R ₂₉), be contained in the F of transmitter on-off circuit 1 ₁Negative circuit 16 (F between the 8th pin and the 10th pin ₄, R ₅), monostable whole circuit 17 (F ₂, F ₃, R ₁～R ₃, C ₂～C ₄).