Precise adjustment type miniature two-path optical fiber slip ring

Abstract

The utility model discloses a precise adjustment type miniature two-path optical fiber slip ring, and particularly relates to the technical field of optical fiber communication, the precise adjustment type miniature two-path optical fiber slip ring comprises a first shell and a second shell, the end part of the first shell is provided with a protruding part, the protruding part is inserted into the second shell, and the first shell is internally provided with a rotating rotor tube; a first optical fiber piece is installed in the end, away from the protruding part, of the rotor pipe, a third optical fiber piece is installed in the end, close to the protruding part, of the rotor pipe, a fourth optical fiber piece is installed in the protruding part, and a second optical fiber piece is installed in the second shell. The first optical fiber piece, the second optical fiber piece, the third optical fiber piece and the fourth optical fiber piece are located on the same axis. According to the utility model, through mutual cooperation of the lens, the glass insertion core, the ceramic tube and the metal tube, effective, continuous and bidirectional optical coupling of two optical fiber channels on a rotatable same axis can be realized, miniaturization of equipment is realized, production cost and working efficiency are reduced, and a coaxial adjustable scheme is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical fiber communication technical field more specifically, the utility model relates to a kind of precision adjustment formula miniature two-way optical fiber slip ring. BACKGROUND

[0002] Two-way optical fiber slip ring is a kind of 360 degree unrestricted rotating device for transmitting optical communication, main function is when transmitting optical fiber signal, signal interruption does not appear, two-way optical fiber channel is arranged along the same rotating shaft linearly.Various types of optical fiber rotary joints of existing product, but they do not solve the problem of signal transmission on coaxial line of double channel. SUMMARY

[0003] To realize the above object, the utility model provides the following technical scheme: a kind of precision adjustment formula miniature two-way optical fiber slip ring, including first shell and second shell, first shell end portion is provided with a convex part and the convex part is inserted in the inside of second shell, rotating rotor tube is installed in the inside of first shell, first optical fiber piece is installed in the inside of rotor tube far from the one end of convex part, third optical fiber piece is installed in the inside of rotor tube close to the one end of convex part, fourth optical fiber piece is installed in the inside of convex part, second optical fiber piece is installed in the inside of second shell, the first optical fiber piece, second optical fiber piece, third optical fiber piece and fourth optical fiber piece are located on the same axis.

[0004] In a preferred embodiment, a plurality of bearings are provided outside the rotor tube, the bearings are fixed inside the first shell, a rotor locking end is installed at the end of the rotor tube far from the convex part, the rotor locking end is located at the end of the first shell, a first plug is installed at the outer end of the rotor locking end;

[0005] The second plug is installed at the end of the second shell far from the first shell.

[0006] In a preferred embodiment, the first optical fiber piece includes a first metal tube installed inside the rotor tube, a first lens and a first ceramic ferrule are installed inside the first metal tube, the first lens is located close to the convex part side, a first optical fiber is bonded inside the first ceramic ferrule, the first optical fiber extends along the axis of the first ceramic ferrule and extends to the outside of the first shell through the first plug.

[0007] In a preferred embodiment, the third optical fiber piece includes a second metal tube installed inside the rotor tube, a first glass ferrule is installed inside the second metal tube, and a third optical fiber is installed inside the first glass ferrule.

[0008] In a preferred embodiment, a gap is left between the first metal tube and the inner wall of the rotor tube, the third optical fiber passes through the rotor tube and the first metal tube through the gap and extends to the outside of the first shell from the first plug.

[0009] In a preferred embodiment, the second fiber piece comprises a second ceramic tube fixed inside the second shell, a second lens and a second ceramic ferrule are installed inside the second ceramic tube, the second lens is located on the side close to the protruding part, a second optical fiber is bonded inside the second ceramic ferrule, the second optical fiber extends along the second ceramic tube axis and extends to the outside of the second shell through the second plug.

[0010] In a preferred embodiment, the fourth fiber piece comprises a first ceramic tube fixed inside the protruding part, a second glass ferrule is installed inside the first ceramic tube, and a fourth optical fiber is bonded inside the second glass ferrule.

[0011] A waist-shaped hole is arranged between the second ceramic tube and the inner wall of the second shell, and the fourth optical fiber extends from the second plug to the outside of the second shell through the waist-shaped hole and the second ceramic tube.

[0012] In a preferred embodiment,

[0013] The technical effects and advantages of the present application are as follows:

[0014] The present application can realize effective, continuous and bidirectional optical coupling of two optical fiber channels on the same axis through the cooperation of the lens, glass ferrule, ceramic tube and metal tube, realizes the miniaturization of the device, reduces the production cost and working efficiency, and realizes the coaxial adjustable scheme. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The present application is a schematic diagram of the overall structure.

[0016] The reference signs are: 1 first shell, 2 second shell, 3 rotor tube, 4 bearing, 5 rotor locking end, 6 first plug, 7 second plug, 8 first metal tube, 9 first lens, 10 first ceramic ferrule, 11 first optical fiber, 12 second metal tube, 13 first glass ferrule, 14 third optical fiber, 15 second ceramic tube, 16 second lens, 17 second ceramic ferrule, 18 second optical fiber, 19 first ceramic tube, 20 second glass ferrule, 21 fourth optical fiber. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0018] AsFigure 1 The application discloses a precision-adjustable micro two-way optical fiber slip ring, which comprises a first shell 1 and a second shell 2, the first shell 1 is provided with a protruding part at one end, the protruding part is inserted into the second shell 2, a rotating rotor tube 3 is arranged in the first shell 1, a first optical fiber part is arranged in the rotor tube 3 at an end far from the protruding part, a third optical fiber part is arranged in the rotor tube 3 at an end close to the protruding part, a fourth optical fiber part is arranged in the protruding part, and a second optical fiber part is arranged in the second shell 2, wherein the first optical fiber part, the second optical fiber part, the third optical fiber part and the fourth optical fiber part are located on the same axis.

[0019] A plurality of bearings 4 are arranged outside the rotor tube 3 and fixed in the first shell 1, a rotor locking end 5 is arranged at an end of the rotor tube 3 far from the protruding part, the rotor locking end 5 is located at the end of the first shell 1, and a first plug 6 is arranged at the outer end of the rotor locking end 5.

[0020] The second shell 2 is provided with a second plug 7 at an end far from the first shell 1.

[0021] Based on the above, the rotor tube 3 is arranged in the first shell 1 through the bearings 4 and rotates in the first shell 1 through the bearings 4, screw holes are arranged in the rotor locking end 5 and the first plug 6, the rotor tube 3 can be fixed in the first shell 1 through the screw holes of the two parts.

[0022] The first optical fiber part comprises a first metal tube 8 arranged in the rotor tube 3, the first metal tube 8 is provided with a first lens 9 and a first ceramic ferrule 10, the first lens 9 is located at a side close to the protruding part, the first optical fiber 11 is arranged in the first ceramic ferrule 10 and extends to the outside of the first shell 1 through the first plug 6 along the axis of the first ceramic ferrule 10.

[0023] The third optical fiber part comprises a second metal tube 12 arranged in the rotor tube 3, the second metal tube 12 is provided with a first glass ferrule 13, and the first glass ferrule 13 is provided with a third optical fiber 14.

[0024] The first metal tube 8 is provided with a gap with the inner wall of the rotor tube 3, the third optical fiber 14 passes through the rotor tube 3 and the first metal tube 8 through the gap and extends to the outside of the first shell 1 from the first plug 6.

[0025] The second optical fiber piece includes a second ceramic tube 15 fixed inside the second shell 2, the second ceramic tube 15 is internally provided with a second lens 16 and a second ceramic ferrule 17, the second lens 16 is located at one side close to the protruding part, and a second optical fiber 18 is bonded in the second ceramic ferrule 17, the second optical fiber 18 extends along the axis of the second ceramic tube 15 and extends to the outside of the second shell 2 through the second plug 7.

[0026] The fourth optical fiber piece includes a first ceramic tube 19 fixed inside the protruding part, the first ceramic tube 19 is internally provided with a second glass ferrule 20, and the second glass ferrule 20 is internally bonded with a fourth optical fiber 21.

[0027] The second ceramic tube 15 is provided with a waist-shaped hole between the inner wall of the second shell 2, and the fourth optical fiber 21 extends from the second plug 7 to the outside of the second shell 2 through the second ceramic tube 15 along the waist-shaped hole.

[0028] Based on the above, the third optical fiber piece and the fourth optical fiber piece form an optical path one, the third optical fiber 14 is bonded in the first glass ferrule 13, the first glass ferrule 13 is bonded in the second metal tube 12; the fourth optical fiber 21 is bonded in the second glass ferrule 20, the second glass ferrule 20 is bonded in the first ceramic tube 19; the third optical fiber 14 and the fourth optical fiber 21 propagate the optical path through the glass ferrule, the third optical fiber piece is close to the protruding part, and the fourth optical fiber piece is located in the protruding part, so that the distance between the glass ferrules of the two is small, and the distance between the two glass ferrules is adjustable, the third optical fiber 14 extends out through the gap between the inner wall of the rotor tube 3 and the first metal tube 8; the fourth optical fiber 21 extends out through the waist-shaped hole in the middle of the second shell 2.

[0029] Further, of the two glass ferrules, the second glass ferrule 20 is fixed, the first glass ferrule 13 is installed in the second metal tube 12, the second metal tube 12 is located inside the rotor tube 3, and the position of the second metal tube 12 in the rotor tube 3 is adjustable, wherein the rotor tube 3 and the first shell 1 outside the second metal tube 12 are both provided with a through screw hole, and the screw can pass through the screw holes on the rotor tube 3 and the first shell 1 and abut against the outer wall of the second metal tube 12 inside, so as to fix the second metal tube 12 inside the rotor tube 3, thus the position of the second metal tube 12 in the rotor tube 3, i.e. the distance between the two glass ferrules, can be changed by the above-mentioned method.

[0030] Further, the first optical fiber and the second optical fiber constitute a light path two, the first optical fiber 11 is bonded in the first glass ferrule 13, and the first lens 9 is bonded in the first metal tube 8; the second optical fiber 18 is bonded in the second glass ferrule 20, and the second lens 16 is bonded in the second ceramic tube 15; the first optical fiber 11 and the second optical fiber 18 are light paths that propagate through the respective ceramic ferrules and then through the first lens 9 and the second lens 16, because the spot of light emitted by the first lens 9 and the second lens 16 is large, the third optical fiber 14 and the fourth optical fiber 21 are small in diameter, so the transmission of the light path is not greatly affected, and the distance between the first lens 9 and the second lens 16 is adjustable.

[0031] The second ceramic tube 15 is fixed in the second housing 2, and the first metal tube 8 is mounted in the rotor tube 3, screw holes are formed through the rotor tube 3 and the first housing 1 on the outer side of the first metal tube 8, and the first metal tube 8 can be fixed by being clamped between the screw holes in the rotor tube 3 and the first housing 1, so that the position of the first metal tube 8 in the rotor tube 3 can be changed, that is, the distance between the first lens 9 and the second lens 16 can be changed.

[0032] Based on the above, by adjusting the position of the rotor tube 3 and the optical fiber inside the rotor tube 3, the optical fiber axis inside the rotor tube 3 is coaxial with the optical axis, and the two light paths are coaxial, because the spot of the parallel light beam emitted by the combination of the ceramic ferrule and the lens is large, and the spot of the light transmitted by the glass ferrule is small, the large spot can be transmitted through the glass ferrule, and the two light paths are transmitted simultaneously and in real time.

[0033] The lens, the glass ferrule, the ceramic tube and the metal tube are matched with each other, the two optical fiber channels can be effectively, continuously and bidirectionally optically coupled on the same axis which can rotate, the device is miniaturized, the production cost and the working efficiency are reduced, and the coaxial adjustable scheme is realized.

[0034] Finally, it should be pointed out that: first, in the description of the present application, it should be pointed out that, unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0035] Secondly: the utility model discloses the embodiment in the drawing, only relate to the structure involved in the embodiment of the present disclosure, other structures can refer to the usual design, in the case where there is no conflict, the same embodiment and different embodiments of the utility model can be combined with each other;

[0036] Finally: the above described is only the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A precision adjustable miniature dual-path fiber optic slip ring, characterized in that, The device includes a first outer shell and a second outer shell. The first outer shell has a protrusion at one end, which is inserted into the interior of the second outer shell. A rotating rotor tube is installed inside the first outer shell. A first optical fiber component is installed inside the rotor tube at the end away from the protrusion. A third optical fiber component is installed inside the rotor tube at the end near the protrusion. A fourth optical fiber component is installed inside the protrusion. A second optical fiber component is installed inside the second outer shell. The first, second, third, and fourth optical fiber components are located on the same axis.

2. The precision adjustable miniature dual-path fiber optic slip ring according to claim 1, characterized in that: A plurality of bearings are fitted around the outside of the rotor tube, and the bearings are fixed inside the first housing. A rotor locking end is installed at the end of the rotor tube away from the protrusion. The rotor locking end is located at the end of the first housing, and a first plug is installed at the outer end of the rotor locking end. A second plug is installed at the end of the second outer shell that is away from the first outer shell.

3. The precision adjustable miniature dual-path fiber optic slip ring according to claim 2, characterized in that: The first optical fiber component includes a first metal tube installed inside the rotor tube. A first lens and a first ceramic ferrule are installed inside the first metal tube. The first lens is located on the side near the protrusion. A first optical fiber is bonded inside the first ceramic ferrule. The first optical fiber extends along the axis of the first ceramic ferrule and passes through the first plug to extend to the outside of the first housing.

4. The precision adjustable miniature dual-path fiber optic slip ring according to claim 3, characterized in that: The third optical fiber component includes a second metal tube installed inside the rotor tube, a first glass ferrule installed inside the second metal tube, and a third optical fiber installed inside the first glass ferrule. A gap is left between the first metal tube and the inner wall of the rotor tube, and the third optical fiber passes through the gap, passes through the rotor tube and the first metal tube, and extends from the first plug to the outside of the first housing.

5. The precision adjustable miniature dual-path fiber optic slip ring according to claim 2, characterized in that: The second optical fiber component includes a second ceramic tube fixed inside the second housing. A second lens and a second ceramic ferrule are installed inside the second ceramic tube. The second lens is located on the side near the protrusion. A second optical fiber is bonded inside the second ceramic ferrule. The second optical fiber extends along the axis of the second ceramic tube and passes through the second plug to the outside of the second housing.

6. A precision adjustable miniature dual-path fiber optic slip ring according to claim 5, characterized in that: The fourth optical fiber component includes a first ceramic tube fixed inside the protrusion, a second glass ferrule installed inside the first ceramic tube, and a fourth optical fiber bonded inside the second glass ferrule. An oblong channel is provided between the second ceramic tube and the inner wall of the second outer shell, and the fourth optical fiber extends from the second plug to the outside of the second outer shell through the oblong channel through the second ceramic tube.

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