CN2240733Y

CN2240733Y - Digital display type wire tester

Info

Publication number: CN2240733Y
Application number: CN 95214973
Authority: CN
Inventors: 朱凤宾
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-06-21
Filing date: 1995-06-21
Publication date: 1996-11-20
Anticipated expiration: 2005-06-21

Abstract

The utility model discloses a digital display type wire tester used for looking for the wire heads of a plurality of the wires or the multiple core cables. The utility model is mainly composed of a wire end coder and a coding displayer, wherein, the coder is composed of diode matrix circuits, and the displayer adopts an LED nixie tube for displaying. The utility model has the advantages of small size, light weight, and simple structure for the electric line. The operating signals transmitted are all dc level signals, the utility model can be operated by one person, the wire test can be carried out conveniently, rapidly, and reliably, and the wire breaking fault and the short circuit fault between wires can be tested.

Description

Digital display type lead cable alignment apparatus

The utility model relates to a kind of digital display type lead cable alignment apparatus, be used for bundle conductor or polycore cable to line, once can be to going out the coded markings of 20--40 root lead or cable the end of a thread.

Prior art typically uses news Chinese percussion instrument or multimeter to line method, when from many (core) leads or cable, detecting two the end of a thread that just can find out the cable two ends through repeated multiple times, be that this two the end of a thread Homeway.com Chinese percussion instrument or multimeter are concatenated into an electric loop, the news Chinese percussion instrument sounding or the multimeter beat of pointer, could determine that this is the end of a thread of a lead, if the wire stylet number is many, the end of a thread distributes not at a place, just very time-consuming to line, make mistakes easily, but also needing two people's operations, distance must use communication tool.From Chinese patent literature, consult in addition and learn, the patent No. is 93209023.0, name is called the cable alignment apparatus of line inspection signal generator, it be such to line method, each the end of a thread of an end of tested stranded conductor cable is access in scrambler, and signal generator sends signal according to the coding of every the end of a thread, the coded signal that the other end signal receiver of cable receives according to each the end of a thread, thereby determine the end of a thread coded markings, finish line is operated.Though this cable alignment apparatus conveniently fast, need send respectively at two ends of tested cable and receive the serial pulses coded signal, so complex circuit, the cost height, the cable proofreader signal attenuation of longer distance can influence the reliability to line again.

In view of the weak point that above-mentioned cable alignment apparatus exists, task of the present utility model provides a kind of rapid to line, and easy to operate, accurately reliable, electric wiring is simple in structure, lower-cost multicore cable cable proofreader instrument.

For solving above-mentioned task, solution of the present utility model is: the unidirectional performance of leading of utilizing semiconductor diode, design a kind of scrambler that constitutes by diode matrix circuit, the row of matrix circuit are as the scrambler input end, be used to connect each the end of a thread of tested cable one end and according to the position encoded mark of input end, the row of matrix circuit is as the output terminal of scrambler, signal is passed to LED charactron code displaying character, and the needs configuration diode according to output encoder between the row of matrix circuit and the row connects.As follows to the line test process: as the line rod to be bumped the end of a thread that connects tested cable one end with what be connected in dc power anode, corresponding the end of a thread of the cable other end inserts scrambler one input terminal and imports a direct current positive level signal, can obtain the just flat signal of direct current of one group of seven sections parallel coding at output terminal, be transferred to display, can show seven sections coded characters of this tested the end of a thread.Other the end of a thread can obtain different code displaying characters, thereby distinguish different the end of a thread according to this, reach the line purpose.

Above-mentioned scrambler shows as adopting a seven segment digital tubes, the words of numeral only taken in character, so once only to going out 10 (core) leads or cable, as increase English character A.C.E.F.H.L.P.U.D.Y etc., can make seven segment digital tubes code displaying character reach 20, can be once to going out 20 (core) leads or cable.Increase the line number of matrix circuit again, the figure place of columns and demonstration seven segment digital tubes can make coding reach more than hundred (core) to the cable conductor of line.

In the solution of the present utility model owing to adopted diode matrix circuit, handled the encoded question of multi-thread head more easily well, and work signal such as coding signal is the DC level signal, the transmission steady operation is reliable, electric wiring is simple in structure, and it is convenient to increase the dilatation of test the end of a thread.

Below in conjunction with drawings and Examples the utility model is described in further detail.

Fig. 1 is the electrical schematic diagram of an embodiment of the utility model.

Fig. 2 is the electric hookup of an embodiment of the utility model.

Fig. 3 is the electrical schematic diagram of the utility model digital encoder.

Fig. 4 is the electrical schematic diagram of the utility model alphabet code device.

(1) is display among the above-mentioned figure.(2) be paired cable, (3) are scrambler.

(4) be tested lead or cable.(5) be to the line rod.(6) be the 10-bit digit pipe.

(7) be units sign indicating number pipe.(8) be hummer.

In the electrical principle of Fig. 1, tested cable (4) is one 20 core cables or 20 leads, scrambler (3) has 20 input ends, 8 output terminals, wherein a.b.c.d.e.f.g is used for the demonstration of units sign indicating number pipe (7) numeral, h is used for 10-bit digit pipe (6) and shows, paired cable (2) connects scrambler (3) and display (1) is one eight a core flexible cable, be used to transmit the coding signal of a.b......h, line rod (5) is connected in the positive level of direct supply can bumps with each the end of a thread and connect test, when whenever touching a end of a thread display show a coded digital or English character code simultaneously hummer (8) send sound equipment.Electric hookup when Fig. 2 is the cable alignment apparatus practical operation, tested cable or wire (4) can be quite long, two terminations also can be arranged in different local, paired cable (2) is connected with display (1) scrambler (3) with plugs and sockets, its length can be decided according to the actual requirements, test for convenience, being connected of tested cable (4) and scrambler (3) adopts crocodile clip to clamp the end of a thread, and inserts the input end of scrambler (3) with plugs and sockets.

Fig. 3 is the electrical schematic diagram of this cable alignment apparatus digital encoder, it is a diode matrix circuit, classify the end of a thread 0.1......19 end that input end need be encoded as, behavior output encoder signal a.b......h end, row and column connects with diode according to the coding needs, for example: row are encoded to the end of a thread of 1 and hold through the b.c of two diodes and row respectively and be connected, during to line, connect line rod (5) is bumped connector lug being encoded on corresponding the end of a thread of 1 of positive source, make the diode current flow of two connections, the b.c output terminal conducts to the digital display tube of display (7) through paired cable and shows 1, and so just definite the end of a thread of 1 of being encoded to that the line rod is bumped on the end of a thread that connects and the scrambler is a pair of the end of a thread.Can be with quadrat method to going out any the end of a thread on the scrambler input terminal.

0......9 coding the end of a thread does not all link to each other with the h output terminal as can be seen from Fig. 3,10......19 coding the end of a thread all is connected with the h output terminal, from the electrical schematic diagram of Fig. 1 cable alignment apparatus as seen, the b.c end of h end and 10-bit digit pipe links to each other, h rectifies the level conducting, the 10-bit digit pipe shows 1, and h holds not conducting 10-bit digit pipe not show, in order to distinguish the end of a thread coding 0......9 and 0......19.

Fig. 4 is the electrical schematic diagram of cable alignment apparatus alphabet code device, and the principle of diode matrix circuit formation scrambler and the digital encoder of above-mentioned Fig. 3 are just the same, the character display of just encoding difference.In this cable alignment apparatus the English coder structure of the digital encoder of Fig. 3 and Fig. 4 and connector are designed to just the same, internal matrix circuit code difference just.The grafting of English scrambler a.b......h end can be gone into the tail end a ＇ b ＇ of digital encoder in actual applications ... h ＇, so just can make whole cable alignment apparatus the line capacity is doubled, miscellaneous part structure etc. need not change, and makes things convenient for practical application.Principle of work according to the utility model cable alignment apparatus can be found the wire break fault more conveniently in to the line operation, be that display does not show not sounding of while hummer, short trouble when between lead promptly shows unallowable instruction digit or has two the end of a thread to show same character.

Install, when maintenance polycore cable or multiple conducting wires, use the utility model cable alignment apparatus, at first each the end of a thread of cable one end is inserted the input end of scrambler with crocodile clip, energized, (adopting general battery to get final product), scrambler is connected with display through paired cable, scrambler and display can be separately positioned on two ends of tested cable, can be or not a space, convenient to line, be connected in display to the line rod, whenever touch a end of a thread, the hummer sounding, display shows the coding of this end of a thread simultaneously, has so just reached the purpose to line.

Whole convenient, fast to the line operating process, the cable alignment apparatus working stability is reliable.

Claims

1. one kind by scrambler (3), paired cable (2), the display (1) that direct supply and LED charactron and hummer are formed and to the made digital display type lead cable alignment apparatus of line rod (5), it is characterized in that scrambler (3) is made of diode matrix circuit, when be connected with dc power anode line rod (5) is touched each wire head of the other end of the tested lead (4) that is connected with each input end of scrambler (3) successively the time, each input end of scrambler (3) is imported a direct current positive level signal successively, its output terminal is exported one group of parallel coding direct current positive level signal successively, be added to display (1) through paired cable (2), its LED charactron shows that successively the coded character while hummer of each tested wire head sends sound equipment, finish line, the work signal of whole cable alignment apparatus is the DC level signal.

2. cable alignment apparatus according to claim 1, it is characterized in that scrambler (3) is made of diode matrix circuit, 20 column wires of matrix circuit constitute its input end, article 8, the lead of going constitutes its output terminal, each row of matrix circuit with capable between according to the needs of output encoder, the diode of configuration varying number is done different connections, constitutes to show arabic numeral and show two kinds of different scramblers of English alphabet.