CN200956469Y

CN200956469Y - Ultra-short 3.5 multi-pole plug

Info

Publication number: CN200956469Y
Application number: CNU2006200649075U
Authority: CN
Inventors: 张永昌
Original assignee: Shenming Electron Dongguan Co ltd
Current assignee: Shenming Electron Dongguan Co ltd
Priority date: 2006-09-27
Filing date: 2006-09-27
Publication date: 2007-10-03
Anticipated expiration: 2016-09-27

Abstract

The utility model discloses an ultra-short 3.5 multi-pole plug, comprising an insulator, a plug pin fixed on the insulator, a first middle tube, a second middle tube and an outer tube coaxially fixed on the insulator, one end of the plug pin is inserted into the through hole of the first middle tube from one end of the first middle tube and extends out from the through hole of the first middle tube, a gap is left between the plug pin and the first middle tube; one end of the first middle tube is inserted into the through hole of the second middle tube from one end of the second middle tube and extends out from the through hole of the second middle tube; a gap is left between the first middle tube and the second middle tube; one end of the second middle tube is inserted into the through hole of the outer tube from one end of the outer tube and extends out from the through hole of the outer tube; a gap is left between the second middle tube and the outer tube; the plug pin, the first middle tube, the second middle tube and the outer tube are separated by the insulator, and anti-slip patterns are formed in the through holes of the first middle tube and the outer tube. It is convenient for molding, effectively improves the yield rate, and increases its safety.

Description

Ultrashort type 3.5 multi-pole plugs

Technical field

The utility model relates to a kind of plug construction that is used for earphone, loud speaker or microphone, is meant a kind of multi-pole plug that can transmit multiple signals especially.

Background technology

The multi-pole plug that is generally used at present on the stereo sets such as earphone, loud speaker or microphone mostly is three utmost points or four utmost points greatly, three-terminal polarized plus plug comprises that coaxial front end, middle pipe and outer tube respectively are a utmost point, isolated between each adjacent electrode with dead ring, and four utmost point plugs comprise in the coaxial front end, first that managing, reach outer tube in the pipe, second is each one-level.Its weak point is, only can transmit three kinds or four kinds of signals, the audiovisual needs that at all can't adapt to the high development of audiovisual multimedia technology, if be increased to five utmost points or five when extremely above along axis, its plug size must extend, can't with host socket really sizing adapt, and the difficulty of making greatly improves, and pipe does not have the location in first, easily crookedly during moulding causes short circuit, the rotating easily of pipe in second caused bad finished product.

The utility model content

The purpose of this utility model is to overcome above-mentioned defective of the prior art, and a kind of assembling of being convenient to is provided, and the rate of finished products height takes place crookedly in the time of preventing in first the pipe moulding, and can prevent ultrashort type 3.5 multi-pole plugs that pipe rotates in second.

For achieving the above object, the technical scheme that the utility model provides is as follows: construct a kind of ultrashort type 3.5 multi-pole plugs, comprise insulator, be fixed in the contact pin on the insulator, coaxially be installed in first on the insulator pipe, outer tube in the pipe, second, one end of one end of described contact pin pipe from first inserts in the through hole of pipe in first, and stretches out in the through hole of pipe from first, leaves the gap between the pipe in the contact pin and first; An end of an end of pipe pipe from second inserts in the through hole of pipe in second in first, and stretches out in the through hole of pipe from second; Leave the gap between the pipe in the pipe and second in first; An end of pipe inserts in the through hole of outer tube from an end of outer tube in second, and stretches out from the through hole of outer tube; Leave the gap between pipe and the outer tube in second; Pipe in the described contact pin, first, be separated by by insulator between pipe, the outer tube in second, be shaped on anti-skidding line in the through hole of pipe, outer tube in first.

The described interior anti-skidding line of through hole that is arranged on pipe, outer tube in first is a screw thread, can prevent to rotate after pipe, the outer tube moulding in first.

The end that pipe stretches out from outer pipe through-hole in described second also is provided with a circular arc convex body less than semicircle, in the time of can being convenient to moulding pipe in first is positioned, and takes place crookedly in the time of preventing in first the pipe moulding, and can prevent pipe rotation in second.

The beneficial effect of ultrashort type 3.5 multi-pole plugs described in the utility model is: by constructing an insulator, coaxial being installed with in first managed on insulator, pipe in second, outer tube, described contact pin, pipe in first, pipe in second, be separated by by insulator between the outer tube, pipe in first, be shaped on anti-skidding line in the through hole of outer tube, insulator is the plastic cement member by injection mo(u)lding, pipe in this insulator and first, anti-skidding line in the through hole of outer tube is meshed, make pipe in first, outer tube and insulator are fastenedly connected and are one, the end that pipe stretches out from outer pipe through-hole in described second also is provided with a circular arc convex body less than semicircle, in the time of can being convenient to moulding pipe in first is positioned, and can prevent pipe rotation in second, be convenient to moulding, effectively improve rate of finished products.

Below in conjunction with drawings and Examples ultrashort type 3.5 multi-pole plugs described in the utility model are described further:

Description of drawings

Fig. 1 is one of decomposition chart of the utility model ultrashort type 3.5 multi-pole plugs;

Fig. 2 be the utility model ultrashort type 3.5 multi-pole plugs decomposition chart two;

Fig. 3 is the stereogram of the utility model ultrashort type 3.5 multi-pole plugs;

Fig. 4 is the front view of Fig. 3;

Fig. 5 is the A-A cutaway view of Fig. 4.

Embodiment

Below be the most preferred embodiment of ultrashort type 3.5 multi-pole plugs described in the utility model, therefore do not limit protection range of the present utility model.

With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, a kind of ultrashort type 3.5 multi-pole plugs are provided, comprise insulator 1, be fixed in the contact pin 2 on the insulator 1, coaxial be installed in manage in first on the insulator 1 manage 4 in 3, second, outer tube 5, an end of described contact pin 2 is managed an end of 3 and is inserted in the through hole of pipe 3 in first from first, and stretches out in the through hole of pipe 3 from first, form the first order of plug, leave the gap between the pipe 3 in the contact pin 2 and first; A pipe end of 3 manage an end of 4 and is inserted in the through hole of pipe 4 in second in first from second, and manages from second in 4 the through hole and stretch out; Form the second level of plug, leave the gap between managing 4 in the pipe 3 and second in first; An end of pipe 4 inserts in the through hole of outer tube 5 from an end of outer tube 5 in second, and stretches out from the through hole of outer tube 5; Form the third level of plug, leave the gap between pipe 4 and the outer tube 5 in second; Outer tube 5 forms the fourth stage of plug; Manage in the described contact pin 2, first and manage 4 in 3, second, be separated by by insulator 1 between the outer tube 5, be shaped in the through hole of pipe 3 in first in the through hole of anti-skidding line 3a, outer tube 5 and be shaped on anti-skidding line 5a.

Described be arranged on manage 3 in first, anti-skidding line 3a, 5a in the through hole of outer tube 5 be screw thread, can prevent to rotate after pipe, outer tube 5 moulding in first.

Pipe 4 ends that stretch out from outer tube 5 through holes also are provided with a circular arc convex body 6 less than semicircle in described second, in the time of can being convenient to moulding pipe 3 in first are positioned, and prevent pipe 4 rotations in second.

By constructing an insulator 1, coaxial being installed with manages 3 in first on insulator 1, manage 4 in second, outer tube 5, described contact pin 2, manage 3 in first, manage 4 in second, be separated by by insulator 1 between the outer tube 5, manage 3 in first, be shaped on anti-skidding line 3a in the through hole of

outer tube

5,5a, insulator 1 is the plastic cement member by injection mo(u)lding, manage 3 in this insulator 1 and first, anti-skidding line 3a in the through hole of

outer tube

5,5a is meshed, make and manage 3 in first, outer tube 5 is fastenedly connected with insulator 1 and is one, pipe 4 ends that stretch out from outer tube 5 through holes also are provided with a circular arc convex body 6 less than semicircle in described second, in the time of can being convenient to moulding pipe 3 in first is positioned, prevent pipe 4 rotations in second, be convenient to moulding, effectively improve rate of finished products, and can increase its fail safe.

Claims

1, a kind of ultrashort type 3.5 multi-pole plugs, comprise insulator, be fixed in the contact pin on the insulator, coaxially be installed in first on the insulator pipe, outer tube in the pipe, second, it is characterized in that, one end of one end of described contact pin pipe from first inserts in the through hole of pipe in first, and stretches out in the through hole of pipe from first, leaves the gap between the pipe in the contact pin and first; An end of an end of pipe pipe from second inserts in the through hole of pipe in second in first, and stretches out in the through hole of pipe from second; Leave the gap between the pipe in the pipe and second in first; An end of pipe inserts in the through hole of outer tube from an end of outer tube in second, and stretches out from the through hole of outer tube; Leave the gap between pipe and the outer tube in second; Pipe in the described contact pin, first, be separated by by insulator between pipe, the outer tube in second, be shaped on anti-skidding line in the through hole of pipe, outer tube in first.

2, ultrashort type 3.5 multi-pole plugs according to claim 1 is characterized in that, the described interior anti-skidding line of through hole that is arranged on pipe, outer tube in first is a screw thread.

3, ultrashort type 3.5 multi-pole plugs according to claim 1 is characterized in that, the end that pipe stretches out from outer pipe through-hole in described second also is provided with a circular arc convex body less than semicircle.