KR200242166Y1 - Connector for a fiber optic cable - Google Patents

Abstract

The present invention relates to an optical fiber plug fixing piece structure, the optical fiber plug according to the present invention is composed of an integral type, there are formed a large number of large, medium and small inner diameter portion in which the inner diameter is sequentially reduced The other inner diameter portion corresponds to the center line, the inner coating layer and the outer coating layer of the optical fiber conductor, respectively, and the inner diameter portion has a plurality of radial insertion holes formed therein, and the fixing pieces are inserted into the insertion holes, respectively, and fixed. Conduit holes are formed in the central portion of the piece, and fixing projection pieces are formed at the upper and lower portions of the conductor holes, respectively, which protrude and extend into the center portion, and the conductive wire holes are formed in an H-shape to penetrate the optical fiber conductors, Both ends of the fixing projection piece tightly press the coating layer of the optical fiber wire to prevent rotation between the optical fiber wire and the fixing piece, After joining, stable and solid effect can be achieved.

Description

Fiber Optic Plug Fixing Structure {CONNECTOR FOR A FIBER OPTIC CABLE}

The present invention relates to an optical fiber plug fixing piece structure, the fixing piece according to the present invention has a stable and robust coupling effect.

'Optical fiber' is mainly used as a signal transmission means, 'optical fiber' is necessarily connected to the optical fiber signal using an optical fiber plug to transmit a signal.

A typical optical fiber plug includes an integrally formed optical fiber plug. A plurality of insertion holes are formed in the optical fiber plug, one fixing piece is inserted in each insertion hole, and a circular hole is formed in the center of each fixing piece. The lead can pass through this hole. When compressing the fixing piece in the vertical direction, the optical fiber wire is fixed to the center portion of the fixing piece, but when using the structure as described above in practical work, there is a need to improve the following problems.

The stability after bonding is not good. Since the contact surface between the circular hole on the fixing piece and the optical fiber lead is an arc-shaped contact surface, rotational phenomenon occurs when an external force is applied, so there is a problem that the coupling between the optical fiber lead and the optical fiber plug is not stable. As a result, the loosening between the optical fiber leads and the optical fiber plugs causes problems.

The present inventors have devised a practical creation after a lot of experiments and studies to compensate for the shortcomings in the structural design of the conventional optical fiber plug fixing piece.

In the optical fiber plug according to the present invention, a plurality of large, medium, and small inner diameter parts are formed in which the inner diameter decreases sequentially, and other inner diameter parts are formed. Respectively correspond to the center line, the inner coating layer and the outer coating layer of the optical fiber conductor, and a plurality of radial insertion holes are formed in the large inner diameter portion, and each of the fixing holes is inserted into each of the insertion holes, and It is formed, the upper and lower portions of the conductive wire hole is formed with a fixed projection piece protruding toward the center portion, respectively, the conductive wire hole is formed in the H-shape through which the optical fiber wire can pass, both ends of the fixed projection piece formed on the fixing piece Tightly press the coating layer of the optical fiber wire to prevent the optical fiber wire from rotating between the fixing pieces. The purpose is to provide.

The above objects and structural features of the present invention will be described in detail with reference to the drawings below.

1 is a perspective view of a preferred embodiment of the present invention.

2 is an exploded perspective view of a preferred embodiment of the present invention.

3 is a cross-sectional view when the optical fiber wire penetrates through the first fixing piece according to the present invention.

4 is a cross-sectional view when the optical fiber lead penetrates the first fixing piece according to the present invention and the optical fiber lead is firmly fitted.

5 is a perspective view of a second fixing piece according to the present invention.

6 is a perspective view of a third fixing piece according to the present invention.

7 is a perspective view of a fourth fixing piece according to the present invention.

8 is a perspective view of a fifth fixing piece according to the present invention.

9 is a perspective view of a sixth fixing piece according to the present invention.

10 is a perspective view of a seventh fixing piece according to the present invention.

11 is a perspective view of an eighth fixing piece according to the present invention.

Explanation of symbols in the drawings

10: fiber optic plug 11: handle

12: middle part 13: head part

14: horizontal cutting surface 15: insertion hole

16: large inner diameter 161: opening

17: middle neck part 18: small inner neck part

20: fixed piece 21: lead wire hole

22: fixed projection piece 221: tooth part

23: fixing protrusion 231: tooth part

24: concave arc portion 241: V-shaped portion

25: V-shaped groove 26: Inverted V-shaped groove

30: optical fiber wire 31: outer coating layer

32: inner cladding layer 33: center line

40: connecting piece

As shown in Figure 1 and 2, the optical fiber plug fixing piece structure according to the present invention is configured as follows.

The optical fiber plug 10 is composed of an integral molding method using a plastic material. The optical fiber plug 10 has a hollow pipe shape, and includes a handle portion 11, an intermediate portion 12, and a head portion 13, and the head portion 13 is circumferential and has an intermediate shape. The portion 12 is hexagonal and the horizontal cutting surface 14 is formed on the upper and lower sides of the handle portion 11, respectively, a plurality of radial insertion holes 15 are formed on the horizontal cutting surface 14, the insertion The holes 15 may be one, two or three.

It consists of a rectangular shape, the lead hole 21 is formed in the center portion, the upper and lower portions of the lead hole 21 are directed toward the center, respectively, the fixing projection pieces 22, 23 of the rectangular shape protrudes, The conductive wire holes 21 are H-shaped, and recessed arc-shaped portions 24 are formed at both ends of the fixing piece 20, respectively.

Inside the optical fiber plug 10, a large inner diameter 16, a middle inner diameter 17 and a small inner diameter 18 are sequentially formed, and the large inner diameter 16, a middle inner diameter 17 and The small inner diameter part 18 is stepped.

An opening (hole) 161 is formed at the end of the optical fiber plug 10 versus the inner diameter 16 so that the optical fiber conductor 30 can pass therethrough.

As shown in FIG. 2, at one end of the optical fiber wire 30, the outer coating layer 31 is removed to expose the center line 33 and the inner coating layer 32, and the center line 33 and the inner coating layer 32. This exposed length corresponds to the length of the small inner diameter part 18 and the middle inner diameter part 17 axis.

When assembling, the fixing pieces 20 may be sequentially inserted into and inserted into the corresponding insertion holes 15, and the optical fiber wire 30 penetrates the optical fiber plug 10, and the optical fiber wire 30 is fixed to each of the fixing pieces. (20) When penetrating the lead hole 21 in the center part (refer to FIG. 3), the upper and lower ends of the fixing piece 20 slightly protrude out of the insertion hole 15, and pressurize the tool. When pressing up and down against the fixing piece 20, the fixing protrusion pieces 22 and 23 inside the fixing piece 20 enter the outer coating layer 30 of the optical fiber wire 30 (FIG. 4). See). That is, the rectangular fixing projection pieces 22 and 23 enter the outer coating layer 31, and press the outer coating layer 31 portions at both ends of the fixing projection pieces 22 and 23. By preventing the left and right rotation of the optical fiber wire 30, unnecessary rotation generated between the optical fiber wire 30 and the fixing piece 20 can be prevented. That is, the present invention has excellent stability and solid position fixing function after bonding. Therefore, it is possible to prevent the optical fiber wire 30 is separated from the optical fiber plug 10 to the outside.

As shown in FIG. 5, the fixing piece 20 is similar to that shown in FIG. 2, except that the V-shaped groove 25 is formed on the fixing piece 20, and the fixing piece is a pressing tool. When pressurizing up and down with respect to (20), the above object of the design can be achieved.

As shown in FIG. 6, the fixing piece 20 is similar to that shown in FIG. 2, but the difference is that an inverted V-shaped groove 26 is formed at the lower portion of the fixing piece 20, and the fixing piece is fixed with a pressing tool. When pressing up and down with respect to the piece 20, the optical fiber wire 30 and the fixing piece 20 as described above can also be prevented from coming off while loosening.

As shown in FIG. 7, the fixing piece 20 is similar to that shown in FIG. 2, except that V-shaped grooves 25 and inverted V-shaped grooves 26 are formed on upper and lower portions of the fixing piece 20, respectively. And, when pressing up and down with respect to the fixing piece 20 with the pressing tool, it is possible to prevent the problem that the optical fiber wire 30 and the fixing piece 20 as described above loosen and come off.

As shown in FIG. 8, the fixing piece 20 is similar to that shown in FIG. 2, except that the tooth piece 231 is formed at the end of the fixing protrusion piece 23 below the fixing piece 20. The above object of the design can be achieved.

As shown in FIG. 9, the fixing piece 20 is similar to that shown in FIG. 2, but the difference is that the teeth 221 and 231 protrude inwardly on the upper and lower sides inside the fixing piece 20, respectively. Forming, when pressing up and down with respect to the fixing piece 20 with a pressing tool, it is possible to achieve the above object.

As shown in FIG. 10, the fixing piece 20 is similar to that shown in FIG. 2, but the difference is that the concave arc portion 24 shown in FIG. 2 is replaced by a V-shape portion 241. It is also possible to achieve the design object as described above.

As shown in FIG. 11, the fixing piece 20 is similar to that shown in FIG. 2, except that the connecting piece 40 is installed between the two fixing pieces 20, and the connecting piece 40 is provided. By connecting the two fixing pieces 20 can be inserted into each of the two fixing pieces 20 at the same time in each of the insertion hole 15 shown in Figure 2, as well as convenience in assembly as well as the above devised A goal can also be achieved.

As can be seen from the above description, the subject innovation has at least the following advantages as a superior structural formulation.

It prevents unnecessary rotation between the fiber optic wire and the fixing piece, and has a stable and strong coupling effect. The H-shaped lead hole 21 is formed in the center of the fixing piece 20, and the fixing protrusions 22 and 23 facing the center part are formed in the upper and lower portions of the conductive wire hole 21 to fix the fixing piece 20. Both ends of the protrusion pieces 22 and 23 press the fiber coating layer 30 to prevent unnecessary rotation generated between the optical fiber conductor 30 and the fixing piece 20, thereby preventing the optical fiber wire 30 and the optical fiber plug 10. Can be prevented from leaving as it becomes loose.

As mentioned above, the present invention is practical and inventive, has not been found in any publications prior to filing, and has never been published.

See description above

Claims (12)

The optical fiber plug has a hollow pipe shape, and the optical fiber plug is integrally formed with a handle portion, a middle portion and a head portion, and a plurality of insertion holes are formed in the handle portion in a radial direction, and a fixing piece is inserted into each insertion hole. In the optical fiber plug fixing piece structure in which the lead hole is formed in the middle part, Fixing projection pieces directed to the center portion is formed in the upper and lower portions of the lead hole, respectively, and both ends of the fixing projection piece enters the coating layer of the optical fiber conductor, characterized in that the fixing position of the optical plug. The method of claim 1, Each of the fixing protrusion pieces is rectangular, and the wire hole fixing piece structure is characterized in that the H-shape. The method according to claim 1 or 2, And a concave arc-shaped portion formed at each end of the fixing piece. The method according to claim 1 or 2, Optical fiber plug fixing piece structure characterized in that to form a V-shaped groove on the top of the fixing piece. The method according to claim 1 or 2, And an inverted V-shaped groove in the lower portion of the fixing piece. The method according to claim 1 or 2, And a V-shaped groove and an inverted V-shaped groove, respectively, in upper and lower portions of the fixing piece. The method according to claim 1 or 2, And a toothed portion formed at an end portion of the fixing projection piece below the lead hole. The method according to claim 1 or 2, The optical fiber plug fixing piece structure, characterized in that the teeth are formed on the end of the fixing projection piece on the upper and lower sides of the conductive tank. The method of claim 3, The concave arc-shaped portion of the optical fiber plug fixing piece structure characterized in that it can be V-shaped. The method according to claim 1 or 2, Optical fiber plug fixing piece structure characterized in that the connecting piece is connected between the two fixing pieces. The method of claim 1, The fixing piece is two, the optical fiber plug fixing piece structure, characterized in that there are also two corresponding insertion holes. The method of claim 1, The fixing piece may be three, the optical fiber plug fixing piece structure characterized in that there are also three corresponding insertion holes.