CN2453569Y - Flush Coaxial Cable Connectors - Google Patents

Abstract

A flush-type coaxial cable connector generally includes a body and a terminal structure. The body comprises a threaded part, a hexagonal body part, a first plane part, a second plane part or an opening and an accommodating hole; the terminal structure includes first and second insulating sleeves and a tubular contact element. The second insulating sleeve of the terminal structure can be stably embedded in the accommodating hole of the body, and the abutting surface of the body and the male connector at the tail end F is kept flat to prevent electric waves from leaking.

Description

Flush Coaxial Cable Connectors

The utility model relates to a coaxial cable connector, in particular to a flat head type coaxial cable connector whose main body terminal forms a plane part.

The inventor once filed a patent application for F-type flat-head coaxial cable connector to the United States on December 4, 1998, and the patent has been approved at present. The body of the original coaxial cable connector fixes the plastic terminal by riveting, or sets a backing ring behind the plastic terminal and rivets it. In order to overcome various defects caused by the above structure, the above-mentioned patent application forms a plane part on both sides of the main body, so that when it is combined with the F male connector at the end, the adjoining surface can be kept flat to prevent the leakage of radio waves.

However, after further trial production, the inventors found that changing the embedded structure between the receiving hole of the main body and the second insulating sleeve of the terminal can greatly reduce the cost and improve the processing speed, and can also make the terminals on both sides of the main body form flat parts.

The purpose of this utility model is to provide a flat head type coaxial cable connector with simple structure and easy assembly, so that the second insulating sleeve of the terminal structure can be firmly embedded in the receiving hole of the body, and at the same time greatly reduce its manufacturing cost And increase its processing speed.

In order to achieve the above purpose, the utility model forms an annular locking protrusion in the receiving hole of the main body, which can make the second insulating sleeve of the terminal structure embedded and fixed; or arrange an annular sleeve at the opening of the main body and make the terminal of the main body form a plane part A through hole is defined in the ring sleeve, and an annular locking protrusion is formed in the through hole to allow the second insulating sleeve of the terminal structure to be embedded and fixed.

In the present utility model, no matter whether the ring-shaped locking protrusion is provided in the housing hole of the body or the ring-shaped sleeve is arranged at the opening of the body, the second insulating sleeve of the terminal structure can be firmly embedded in the housing hole of the body, and the structure Simple and easy to assemble.

The technical features of the flat head coaxial cable connector of the present invention will be further described in detail below in conjunction with specific embodiments.

Fig. 1 is a sectional view of the first embodiment of the utility model;

Fig. 2 is a three-dimensional exploded view of the first embodiment of the utility model;

Fig. 3 is a sectional view of the body of the first embodiment of the utility model;

Fig. 4 is a cross-sectional view of the terminal structure of the first embodiment of the present invention;

Fig. 5 is a sectional view of the second embodiment of the utility model;

Fig. 6 is a sectional view of the body of the second embodiment of the utility model;

Fig. 7 is a sectional view of the annular sleeve of the second embodiment of the utility model;

Fig. 8 is a cross-sectional view of the second embodiment of the utility model when the annular sleeve is combined with the body;

Fig. 9 is a sectional view of the third embodiment of the utility model;

Fig. 10 is a perspective view of the second insulating set of the terminal structure of the third embodiment of the present invention;

Fig. 11 is a three-dimensional cross-sectional view of the annular sleeve of the third embodiment of the present invention;

Fig. 12 is a cross-sectional view of the third embodiment of the present invention when the annular sleeve is combined with the body.

Referring to FIG. 1 and FIG. 2 , the flat head coaxial cable connector of the present invention mainly includes a body 10 and a terminal structure 20 .

As shown in FIG. 3 , the body 10 includes a threaded portion 11 , a hexagonal portion 12 , a first planar portion 13 and a second planar portion 14 . The body 10 defines a receiving hole 15 whose diameter can accommodate the terminal structure 20 . The interior of the accommodation hole 15 terminates at an annular flat bottom 16, and an annular locking protrusion 17 is formed in the accommodation hole 15 adjacent to the second flat portion 14 to embed the fixed terminal structure 20. The outer portion of the locking protrusion 17 has a tapered portion 18 , so that the terminal structure 20 can be easily inserted into the receiving hole 15 .

As shown in FIG. 4, the terminal structure 20 includes a first insulating sleeve 21 and a second insulating sleeve 22, the first insulating sleeve 21 and the second insulating sleeve 22 respectively have annular outer diameter portions 23, 24 and elastic annular clamping portions 25, 26. A tubular contact element 27 is sleeved between the clamping parts 25 and 26, and an insertion port is formed near the terminal of the contact element 27 for insertion of the terminal F male connector conductor to form an electrical connection. The first insulating sleeve 21 and the second insulating sleeve 22 can be made of plastic (such as PE, PP, PC, etc.) or rubber.

When assembling the flat-headed coaxial cable connector, first insert the terminal structure 20 into the receiving hole 15 of the body 10 until the end of the first insulating sleeve 21 is aligned with the annular flat bottom 16, because the receiving hole 15 and the second insulating sleeve 22 The relevant dimensions between the annular locking protrusion 17 and the outer surface of the second insulating sleeve 22 form an embedded combination due to the compressive force, as shown in Figure 1, so that the terminal structure 20 can be firmly fixed in the body 10, and make When the coaxial cable connector is combined with the terminal F male connector, the adjacent surface can be kept flat to prevent the leakage of electric waves.

Referring to FIG. 5 , the flat head coaxial cable connector of the present invention mainly includes a body 30 , a terminal structure 20 and an annular sleeve 40 .

As shown in FIG. 6 , the body 30 includes a threaded portion 31 , a hexagonal portion 32 , a first plane portion 33 and an opening 34 . The body 30 defines a receiving hole 35 whose diameter can accommodate the terminal structure 20. The inside of the receiving hole 35 ends at an annular flat bottom 36. An annular groove 37 is formed in the receiving hole 35 at the end of the opening 34. The inside of the annular groove 37 terminates at a Annular flat bottom 38.

As shown in FIG. 4 , the terminal structure 20 includes a first insulating sleeve 21 , a second insulating sleeve 22 and a tubular contact element 27 .

As shown in Fig. 4 and Fig. 7, the annular sleeve 40 defines a through hole 41, and the end of the through hole 41 has an annular locking protrusion 42 to insert and fix the second insulating sleeve 22, the locking protrusion 42 and the through The connecting surface of the hole 41 forms a tapered portion 43 to facilitate insertion of the first insulating sleeve 21 and the second insulating sleeve 22 into the through hole 41 .

When assembling, first press the annular sleeve 40 into the annular groove 37 of the body 30 until the end of the annular sleeve 40 is flush with the annular flat bottom 38, so that the annular sleeve 40 is combined with the annular groove 37, so that the The opening 34 of the body 30 forms a plane portion 39, as shown in the figure. Finally, insert the terminal structure 20 into the accommodation hole 35 of the body 30 until the end of the first insulating sleeve 21 is aligned with the annular flat bottom 36. Due to the relative size of the accommodation hole 35 and the second insulation sleeve 22, the annular locking protrusion 42 and the outer surface of the second insulating sleeve 22 form an embedded combination due to compression force, as shown in FIG. 5 , so that the terminal structure 20 can be firmly fixed inside the body 30 .

Referring to FIG. 9 , the flat head coaxial cable connector of the present invention mainly includes a body 30 , a terminal structure 50 and an annular sleeve 60 .

As shown in FIG. 10 , the terminal structure 50 includes a first insulating sleeve 51 , a second insulating sleeve 52 and a tubular contact element 53 . The first insulating sleeve 51 and the second insulating sleeve 52 can be made of plastic material, and an annular groove 55 is formed on the outer surface of the annular outer diameter portion 54 of the second insulating sleeve 52 .

As shown in FIG. 11 , the annular sleeve 60 is made of metal material and defines a through hole 61 , and an annular locking protrusion 62 is provided in the through hole 61 so that it can be engaged with the annular groove 55 of the second insulating sleeve 52 . Fastened and fixed, the connecting surface of the locking protrusion 62 and the through hole 61 forms a tapered portion 63 , so that the first insulating sleeve 51 and the second insulating sleeve 52 are easily inserted into the through hole 61 .

As shown in Figures 6 and 11, when assembling, the annular sleeve 60 is first pressed into the annular groove 37 of the body 30 until the terminal end of the sleeve 60 is flush with the annular flat bottom 38, so that the sleeve 60 and the annular groove 37 , so that the opening 34 of the main body 30 forms a plane portion 39 . Finally, insert the terminal structure 50 into the through hole 61 of the sleeve 60 until the end of the first insulating sleeve 51 is flush with the annular flat bottom 36, so that the annular groove 55 and the locking protrusion 62 can be engaged with each other The positioning is formed so that the terminal structure 50 is firmly fixed inside the body 30 .

To sum up, it can be seen that the utility model provides an annular locking protrusion in the housing hole of the body or an annular sleeve at the opening of the body, both of which can make the terminal structure firmly embedded in the body and make the terminal of the body form a plane. Therefore, when the body is combined with the F male connector at the end, the adjoining surfaces can be kept flat to prevent leakage of radio waves. Moreover, the utility model has the advantages of simple structure and easy assembly, which can greatly reduce the cost and increase the processing speed.

Claims (7)

1. A flat-headed coaxial cable connector, including a body and a terminal structure; the body includes a threaded part, a hexagonal body, a first flat part, a second flat part and a receiving hole; the terminal structure includes a first insulating sleeve, a second An insulating sleeve and a tubular contact element; the utility model is characterized in that an annular locking protrusion is formed in the receiving hole adjacent to the second plane part of the body; the second insulating sleeve is made of plastic plastic or rubber. 2. A flat-head coaxial cable connector, including a body and a terminal structure; the body includes a threaded part, a hexagonal body, a first flat part, an opening and a receiving hole; the terminal structure includes a first insulating sleeve and a second insulating sleeve and a tubular contact element; the utility model is characterized in that an annular groove is formed in the receiving hole of the terminal at the opening of the body; an annular sleeve is sleeved in the annular groove so that a plane portion is formed at the opening of the body, and the inside of the sleeve is defined There is a through hole, and the through hole is provided with an annular locking part for combining and fixing the second insulating sleeve. 3. The flat head type coaxial cable connector according to claim 2, wherein the connection surface between the engaging protrusion and the through hole forms a tapered portion. 4. The flat head type coaxial cable connector according to claim 2, wherein the second insulating sleeve is made of plastic or rubber. 5. The flat head type coaxial cable connector according to claim 2, wherein the locking protrusion is formed at the inner terminal of the through hole of the sleeve. 6. The flat head type coaxial cable connector according to claim 2, wherein the locking protrusion is formed at the center of the through hole of the sleeve. 7. The flat-headed coaxial cable connector according to claim 2, wherein the second insulating sleeve is made of plastic material, and an annular recess is formed on its outer surface to engage with the locking protrusion of the sleeve. groove.

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