CN2324714Y

CN2324714Y - Telephone transmission quality detecting device

Info

Publication number: CN2324714Y
Application number: CN 97231377
Authority: CN
Inventors: 叶志成
Original assignee: XITONG ELECTRONIC IND CO Ltd
Current assignee: XITONG ELECTRONIC IND CO Ltd
Priority date: 1997-12-23
Filing date: 1997-12-23
Publication date: 1999-06-16
Anticipated expiration: 2007-12-23

Abstract

The utility model relates to a telephone transmission quality detecting device. At the time of test, an adjustable positioning device on a fixed seat can be used to make a telephone earphone quickly and accurately positioned, and the earphone is tightly pressed with a pressing structure to enable the test effect to reach the most precise and quickest purposes. The utility model has a special designed rotary joint structure and a manual work simulation mouth placing seat shockproof structure to enable the utility model to be suitable for the test requirement with three kinds of different angles of EIA standard ANE, OREMA standard REF, CCITT standard LRGP, etc., in a telephone transmission quality test specification; at the time of testing, the highest accuracy and practicability are reached.

Description

Telephone set transmission quality testing apparatus

The utility model is about a kind of telephone set transmission quality testing apparatus, and being meant especially that a kind of mouthpiece is fast and accurate for positioning and having special adapter structure can be for conversion to meet the device of three kinds of angle specification testing requirements such as ANE, REF, LRGP.

Look into the structure of telephone set, transmission quality, electric characteristics etc. all have certain standard, present main standard specification has EIA, OREMA, three kinds of test specifications of CCITT, these three kinds of standard specifications fix for telephone receiver loudness and the standard of putting the position also all has explicit stipulation, wherein to manual simulation's mouth, the deflection angle of manual simulation's ear with talked about the position, relative angle relation when being used with the anthropomorphic dummy between mouth and ear and the microphone all has certain standard, but the regulation of each specification is neither identical, for EIA, OREMA, three kinds of specifications of CCITT require definition respectively to adopt ANE to this angle, REF, three kinds of angles among the LRGP, because these three kinds of specifications all have its otherness, so in telephone set during in the test of making transmission quality, benefit seems that its difficulty, the utility model promptly are for reaching the testing apparatus that the test angle that is applicable to above-mentioned three kinds of specifications is designed.

Main purpose of the present utility model, but be the telephone set transmission quality testing apparatus that is to provide a kind of Fast transforms ANE, REF, three kinds of angle specifications of LRGP.

Another purpose of the present utility model, be to be to provide a kind of above-mentioned telephone set transmission quality testing apparatus, wherein the locate mode of this mouthpiece is the adjustable reference column fixing that adopts on the holder, and is fast and accurate for positioning in order to mouthpiece when testing, and makes accurate testing.

Another purpose of the present utility model is to be to provide a kind of above-mentioned telephone set transmission quality testing apparatus, and wherein this manual simulation's mouth bearing seat is provided with a shockproof structure, can lower the shaking force that manual simulation's mouth produces when the sound wave low frequency.

The concrete solution of the utility model is:

A kind of telephone set transmission quality testing apparatus includes:

One bracket base has an adjusting lever, can need adjust the inclination angle of itself and bracket base according to the user;

One holder has a test department, the off-centre operation positioner more than three or three and an ear frame: wherein this ear has set up one and has adjusted groove, to fix and to adjust a pressing structure;

One manual simulation's ear receives the signal that transmits tested mouthpiece;

One manual simulation's mouth sends the test signal; And

One adapter structure, the one end is preset with the angle block gauge case of AEN, REF, LRGP and puts, and borrow a joint element, the body of rod that is provided with two alignment pins with an end face forms dismountable movable structure, and the connecting rod other end then borrows a coupling device, two trips and an earthquake washer group to engage with manual simulation's mouth.

Via the combination of above-mentioned member, not only can need adjust the angle of instrument according to the user, and have Fast transforms AEN, REF concurrently, LRGP tests mode, and shockproof effect effectively provides accurate measuring accuracy.

The off-centre operation positioner of holder wherein can be arranged at the ear frame and adjust the shore that the compacting bar of breach promptly is arranged at ear frame lower end lug U type groove, and the blocking that cooperatively interacts of both fixed levers forms more accurate localization effect.

In order further to understand feature of the present utility model and technology contents, please consult in detail following about detailed description of the present utility model and accompanying drawing, yet appended graphic only for reference with usefulness is described, and be not to be used for the utility model is done any restriction; Relevant accompanying drawing is as follows:

Graphic explanation:

Fig. 1 is a stereogram of the present utility model;

Fig. 2 is the stereogram of test mode of the present utility model;

Fig. 3 is the end view of Fig. 2;

Fig. 4 is the three-dimensional exploded view of the various test specifications of simulation mouth of the present utility model;

Fig. 5 is another preferred embodiment stereogram of the present utility model.

The figure number explanation:

10 bracket bases, 511 A holes

11 adjusting levers, 512 B holes

20 holders, 52 alignment pins

21 test departments, 53 alignment pins

22 off-centre operation positioners, 54 set bolts

23 ear framves, 55 set bolts

24 adjust groove 56 earthquake washer groups

25 pressing structures, 57 fastening screws

26 adjust breach 58 fastening screws

27 lugs, 60 mouthpieces

28 U type grooves, 70 compacting bars

29 project plannings, 71 first fixed levers

30 manual simulation's ears, 72 second fixed levers

40 manual simulation's mouths, 80 shores

50 adapter structures, 81 first fixed levers

51 bodies of rod, 82 second fixed levers

As shown in Figure 1 to Figure 3, the utility model mainly is made up of a bracket base 10, a holder 20, manual simulation's ear 30, manual simulation's mouth 40 and an adapter structure 50.

The utility model is to articulate an adjusting lever 11 is set on bracket base 10, and is connected with a holder 20 in adjusting lever 11 upper ends, and this holder 20 is provided with a test department 21 and the off-centre operation positioner 22 more than three or three; In addition, it is adjusted grooves 24 and is provided with a pressing structure 25 in the ear frame 23 of holder 20, and in holder 20 bottom surfaces one adapter structure 50 is set, and is connected with manual simulation's mouth 40 in this rotary head structure 50 with a body of rod 51.

Above-mentioned pressing structure 25 has a project planning 29.

When desiring the mouthpiece 60 of test telephone machine, be about to treat that tested mouthpiece 60 is placed in the test department 21 of holder 20, borrow the positioner 22 on the test department 21 that mouthpiece 60 is located, and the project planning 29 of adjusting pressing structure 25 is pulled down pressing structure 25 mouthpiece 60 is suppressed test department 21 surfaces in holder 20 in the high and low position of ear frame 23 its adjustment grooves 24.

In addition, the user can adjust the inclination angle of adjusting lever 11 and bracket base 10 according to need, to satisfy user's needs.

For another shown in Figure 4, adapter structure of the present utility model 50 and its body of rod 51 are that the alignment pin (52,53) with the body of rod 51 forms a movable bond layout with set bolt 54, can be engaged in adapter structure 50 default AEN, REF according to the needs of user's attribute test, the various angle block gauge cases of LRGP are put.

The EIA standard is the A hole 511 that manual simulation's mouth 40 is placed the body of rod 51, the alignment pin (52,53) of the body of rod 51 is inserted the AEN position of adapter structure 50 again, and is fixing with set bolt 54 again, the location of promptly finishing EIA.

The OREMA standard is then inserted manual simulation's mouth 40 in the A hole 511 of the body of rod 51, the alignment pin (52,53) of the body of rod 51 is inserted the OREMA position of adapter structure 50 again, and is fixing with set bolt 54 again, the location of promptly finishing OREMA.

Ccitt standard is then inserted manual simulation's mouth 40 in the B hole 512 of the body of rod 51 in addition, the alignment pin (52,53) of the body of rod 51 is inserted the LRGP position of adapter structure 50 again, and is fixing with set bolt 54 again, the location of promptly finishing CCITT.

In addition, the body of rod 51 is to engage with manual simulation's mouth 40 with set bolt 55, an earthquake washer group 56 and two fastening screws (57,58), borrows earthquake washer group 56 to reduce manual simulation's mouth 40 when low frequency is tested, the vibrations that produced, avoid causing test error, and then increase its measuring accuracy.

For another shown in Figure 5, be another embodiment of the present utility model; It is to adjust breach 26 in ear frame 23 tops of holder 20 a compacting bar 70 is set, and the U type groove 28 in ear frame 23 lower end lugs 27 is provided with a shore 80 in addition; And compacting bar 70 downward directions are connected with first, second fixed lever (71,72), and the direction that shore 80 makes progress also is provided with first, second because of deciding bar (81,82); Equal identical suitable spacing at interval between first fixed lever (71,81) and second fixed lever (72,82) wherein.

The seamless system of secondment bar 70 cooperates shore 80 again in the position of adjustment breach 26, with both clampings, substitute the positioner 22 among the utility model first embodiment, more accurate localization is in test department 21 surfaces of holder 20 with mouthpiece 60, and its locating accuracy is also more accurate than the utility model first embodiment.

Claims

1, a kind of telephone set transmission quality testing apparatus, it is characterized in that: it includes: a bracket base, have an adjusting lever, can need adjust the inclination angle of itself and bracket base according to the user:

One holder has a test department, the off-centre operation positioner more than three or three and an ear frame; Wherein this ear has set up one and has adjusted groove, to fix and to adjust a pressing structure;

One manual simulation's mouth sends the test signal; And

2, a kind of telephone set transmission quality testing apparatus according to claim 1, it is characterized in that: the off-centre operation positioner of holder wherein, can be arranged at the ear frame and adjust the shore that the compacting bar of breach promptly is arranged at ear frame lower end lug U type groove, the blocking that cooperatively interacts of both fixed levers forms more accurate localization effect.