CN2572588Y

CN2572588Y - Connector fastener for signal terminal

Info

Publication number: CN2572588Y
Application number: CN02264497U
Authority: CN
Inventors: 黄舜治
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-09-18
Filing date: 2002-09-18
Publication date: 2003-09-10
Anticipated expiration: 2012-09-18

Abstract

The utility model discloses a connector fastener for a signal terminal, which is composed of a conducting bar, a conducting shaft, a protective shell, etc., wherein, the outer margin of the conducting bar is concavely provided with a ring groove which is sheathed with an elastic ring; the flaky elastic ring is curled into an arc curved shape and is transversely provided with a plurality of hollow slots; the conducting bar is plugged in the a terminal jack. Owing to elastic contraction generated by the oppressed elastic ring on the ring groove of the conducting bar, the elastic ring can tightly bunt between the conducting bar and the inside wall of the terminal jack, and the conducting bar is fixed in the terminal jack without any looseness or fall-off. In long-term use, the connector fastener can not get loose because of the enlarged hole diameter of the terminal jack, and can be suitable for terminal jacks in different dimensional tolerance zones.

Description

The grafting fixture of signal terminal

Technical field

The utility model relates to a kind of grafting fixture of audio-visual audio-visual products signal terminal.

Background technology

Present audio-visual science and technology is quite flourishing, various high-tech products are constantly weeded out the old and bring forth the new, different audiovisual and communication apparatus generally incorporate the common people's life, and the progress of audio-visual audio-visual products is in tonequality, presenting of picture is more more true to nature than tradition, careful, for reaching high-quality picture and tonequality, except that the quality relation of machinery equipment itself, each lens also influences very big, wherein, because the transmission of the signal between distinct device all connects by signal terminal, the quality of this type of accessory then is related to the quality of signal transmission, for output tonequality, the quality of image has very important influence property, so belong to important accessory, commonly use signal terminal A structure at present, as shown in Figure 4, mainly contain contact rod A1, the front end of contact rod A1 is by insulated electro plank A2, intercept the conductive head A3 of opposed polarity, the end of this contact rod A1 connects establishes protective case A4, can be plugged on the transmission of doing in the terminal jacks B on the signal by signal terminal A, but because the action that this signal terminal A does grafting and pulls out in terminal jacks B for a long time, cause the aperture of terminal jacks B to enlarge easily, make signal terminal A therefore produce loose or dislocation, and have influence on the transmission of signal, again since the dimensional tolerance of the terminal jacks B of various audio-visual devices be not quite similar, make the pore size difference to some extent of terminal jacks B, so that signal terminal A is plugged in the terminal jacks B is not that tension was exactly a pine, equally can have influence on the quality of signal transmission yet, therefore very inconvenient in the use.

The utility model content

The purpose of this utility model is to provide a kind of signal terminal grafting fixture, and this device can not enlarge loose or dislocation because of long-term aperture of pegging graft the back terminal jacks, and can be suitable for the terminal jacks of the different size margin of tolerance.

For achieving the above object, technical solution of the present utility model is: a kind of grafting fixture of signal terminal, include contact rod, conductive shaft and protective case, contact rod is a hollow tubular, inside is provided with the insulated tube of hollow, conductive shaft is located in the insulated tube of contact rod, the front end of conductive shaft is chimeric conductive head, the conductive head rear is provided with the insulated electro plank, the conduction the tip of the axis engages big thread tension disc, insulated electro plank and little thread tension disc, protective case is connected on the end of contact rod, the insulating case of hollow is inserted in protective case inside, and wherein the outer rim of contact rod is provided with annular groove, sheathed elastic ring on the annular groove, elastic ring is that thin slice is curved through the curling arc that forms, and laterally offers several hollow slots.

The grafting fixture of aforesaid signal terminal, wherein the end of contact rod is provided with the threaded portion, and the front end of protective case is provided with internal thread, and the two is spirally connected fixing mutually.

After adopting said structure, the utlity model has following advantage:

1, the utility model sheathed elastic ring on the annular groove of contact rod by the elastic contractile force of this elastic ring, pushes against in terminal jacks contact rod, and can loose or dislocation, and after long-term the use, can not enlarge because of the aperture of terminal jacks and become flexible yet, have influence on the signal transfer function.

2, elastic ring of the present utility model has certain contraction size, so go for the terminal jacks in the different size margin of tolerance, can reach advantage easy to use.

Description of drawings

Fig. 1 is a three-dimensional exploded view of the present utility model;

Fig. 2 is a three-dimensional combination figure of the present utility model;

Fig. 3 is a use schematic diagram of the present utility model;

Fig. 4 is a schematic diagram of commonly using signal terminal.

Embodiment

At first, see also shown in Figure 1ly, the utility model mainly comprises contact rod 1, conductive shaft 2 and protective case 3, wherein:

Contact rod 1 is a hollow tubular, and the insulated tube 11 of a hollow is established in inside, and outer rim is concaved with an annular groove 12, sheathed elastic ring 13 on this annular groove 12, elastic ring 13 is that a thin slice is curved through the curling arc that forms, and laterally offers several hollow slots 14, and the end of contact rod 1 is provided with threaded portion 15;

Conductive shaft 2 is located in the insulated tube 11 of contact rod 1, the chimeric conductive head 21 of the front end of conductive shaft 2, and the insulated electro plank 22 of a circle is established at the rear of conductive head 21, and the end of conductive shaft 2 engages big thread tension disc 23, square insulated electro plank 24 and little thread tension disc 25;

Protective case 3 is screwed onto the end of contact rod 1, and the front end of protective case 3 is provided with internal thread 31, the insulating case 32 of its internal sleeve one hollow.

During combination, as Fig. 2, shown in 3, earlier conductive shaft 2 is entrenched in the conductive head 21, insulated electro plank 22 is located in the front end of conductive shaft 2, again insulated tube 11 is established in the contact rod 1, conductive shaft 2 is penetrated in the insulated tube 11, insulated electro plank 22 is fitted between conductive head 21 and contact rod 1 end, and with big thread tension disc 23, insulated electro plank 24 and little thread tension disc 25 are set in the end of conductive shaft 2 in regular turn, again with the terminal riveted of riveting machine with conductive shaft 2, make big thread tension disc 23, insulated electro plank 24 and little thread tension disc 25 difference riveted and fixed are in the end of contact rod 1 threaded portion 15, then elastic ring 13 is enclosed within on the annular groove 12 of contact rod 1 outer rim, afterwards will be big, little thread tension disc 23,25 respectively with signal line just, negative pole joins, make big thread tension disc 23 and contact rod 1 conducting, little thread tension disc 25 and conductive shaft 2 conductings, big thread tension disc 23 passes through insulated electro plank 24 as insulated barriers with little thread tension disc 25, contact rod 1 passes through insulated electro plank 22 as insulated barriers with conductive shaft 2, at last insulating case 32 is put into the inside of protective case 3, make the threaded portion 15 of contact rod 1 and the internal thread 31 of protective case 3 front ends be spirally connected fixing then, so, then can assemble and finish.

During use, as shown in Figure 3, when contact rod 1 inserts in the terminal jacks B, because the elastic ring 13 on contact rod 1 annular groove 12 can be oppressed, produce elastic shrinkage, this elastic ring 13 can be pushed against between contact rod 1 and terminal jacks B inwall, contact rod 1 is fixed in the terminal jacks B firmly, and loose or dislocation arbitrarily not, even under the user mode of pegging graft for a long time or pulling out, can not enlarge because of the aperture of terminal jacks B and become flexible yet, go for the terminal jacks B in the different size margin of tolerance simultaneously yet.

Claims

1, a kind of grafting fixture of signal terminal, include contact rod, conductive shaft and protective case, contact rod is a hollow tubular, inside is provided with the insulated tube of hollow, conductive shaft is located in the insulated tube of contact rod, the front end of conductive shaft is chimeric conductive head, the conductive head rear is provided with the insulated electro plank, the conduction the tip of the axis engages big thread tension disc, insulated electro plank and little thread tension disc, protective case is connected on the end of contact rod, and the insulating case of hollow is inserted in protective case inside, it is characterized in that: the outer rim of contact rod is provided with annular groove, sheathed elastic ring on the annular groove, elastic ring are that thin slice is curved through the curling arc that forms, and laterally offer one group of hollow slots on it.

2, the grafting fixture of signal terminal as claimed in claim 1, it is characterized in that: the end of contact rod is provided with the threaded portion, and the front end of protective case is provided with internal thread, and the two is spirally connected fixing mutually.