CN214310990U

CN214310990U - Single-channel optical fiber rotary connecting device

Info

Publication number: CN214310990U
Application number: CN202120585977.XU
Authority: CN
Inventors: 张凯
Original assignee: Shenzhen Longte Communication Technology Co ltd
Current assignee: Shenzhen Longte Communication Technology Co ltd
Priority date: 2021-03-23
Filing date: 2021-03-23
Publication date: 2021-09-28
Anticipated expiration: 2031-03-23

Abstract

The utility model relates to an optical communication technical field discloses a single channel optic fibre swivelling joint device, which comprises a housin, the back lid, rotatory sleeve, fixed sleeve and fiber collimator, the back tip of casing is located to back lid detachable lid, the casing is equipped with a first through-hole that runs through along the length direction is concave, the rotatable back tip that sets up in first through-hole of rotatory sleeve, fixed sleeve inlays the preceding tip of locating first through-hole, and rotatory sleeve and fixed sleeve interval connection, the concave second through-hole that is equipped with of back lid, the rotatable second through-hole that stretches out of rotatory sleeve sets up outward, fiber collimator includes optical fiber core and self-focusing lens, self-focusing lens sets up respectively in the preceding tip of optical fiber core, self-focusing lens inlays respectively and locates in rotatory sleeve and the fixed sleeve. The technical scheme of the utility model can have simple structure, small and with low costs advantage with lower loss coupling light signal, and the practicality is strong.

Description

Single-channel optical fiber rotary connecting device

Technical Field

The utility model relates to an optical communication technical field, in particular to single channel optic fibre swivelling joint device.

Background

With the rapid development of information technology, information systems put higher and more demands on the aspects of data transmission rate, bandwidth and the like. However, the conventional electrical slip ring for signal transmission between rotating parts has the problems of complex structure, large volume, large friction, easy abrasion, short service life, weak anti-electromagnetic interference capability and low rotating speed, and therefore, the conventional electrical slip ring is used in some fields requiring signal rotation communication. The electric slip ring has been difficult to meet the use requirements.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a single channel optic fibre swivelling joint device, it is complicated to aim at solving current electric slip ring structure that is used for signal transmission between rotary part, and is bulky, and rub big, cause wearing and tearing, life weak point, the anti-electromagnetic interference ability weak point and the technical problem of the low problem of rotational speed easily.

In order to achieve the above object, the single-channel optical fiber rotary connection device provided by the present invention comprises a housing, a rear cover, a rotary sleeve, a fixed sleeve and an optical fiber collimator, wherein the housing is arranged in a cylindrical structure, the rear cover is detachably covered on the rear end portion of the housing, the housing is concavely provided with a first through hole extending along the length direction, the rotary sleeve is rotatably arranged on the rear end portion of the first through hole, the fixed sleeve is embedded on the front end portion of the first through hole, the rotary sleeve and the fixed sleeve are connected at intervals, the rear cover is concavely provided with a second through hole, the rotary sleeve rotatably extends out of the second through hole, the optical fiber collimator comprises an optical fiber core and a self-focusing lens, the self-focusing lens is respectively arranged on the front end portion of the optical fiber core, the self-focusing lens is respectively embedded in the rotary sleeve and the fixed sleeve, and the self-focusing lens is respectively abutted against the inner peripheral walls of the rotating sleeve and the fixed sleeve.

Further, still include first bearing and second bearing, the internal perisporium of first bearing and second bearing set up respectively in on the rotating sleeve, the periphery wall of first bearing and second bearing inlays respectively and locates set up on the internal perisporium of the rear end portion of first through-hole.

Furthermore, a limiting step is convexly arranged at the front end part of the first through hole, and the front end wall of the first bearing is abutted to the limiting step.

Further, still include the spacer bush, the spacer bush set up in on the rotatory sleeve, just the spacer bush is located between first bearing and the second bearing.

Further, still include the sealing washer, the internal perisporium of second through-hole is concave to be equipped with a storage tank that extends along the circumferencial direction, the sealing washer inlays to be located set up in the storage tank, rotatory telescopic periphery wall with the internal perisporium slip butt setting of sealing washer.

Furthermore, the rear end parts of the shell and the rear cover are respectively provided with a plurality of first threaded holes and second threaded holes in a concave mode along the circumferential direction, and the fastening bolts are sequentially screwed in the first threaded holes and the second threaded holes respectively.

Furthermore, the inner side wall of the rear cover is convexly provided with a limiting boss, and the limiting boss is embedded in the first through hole.

Adopt the technical scheme of the utility model, following beneficial effect has: the technical scheme of the utility model, through utilizing optical collimator coupling light signal, adopt two self-focusing lens to expand beam coupling, the realization will be followed the great (beam waist is little) light beam conversion of divergence angle and become the less (beam waist is big) light beam of divergence angle, thereby with lower loss coupling light signal, compare with traditional electric connector, and simple structure has, small and advantage with low costs, high durability and convenient assembling, machining required precision has been reduced, when rotating work, contactless transmission, can not produce friction and wear, long service life, the light is used to carry out signal transmission, no electromagnetic leakage, the security is good, anti-electromagnetic interference, allow the rotational speed high, therefore, the clothes hanger is strong in practicability.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic view of an overall structure of a single-channel optical fiber rotary connection device according to an embodiment of the present invention;

fig. 2 is a schematic view of the overall structure of a single-channel optical fiber rotary connection device according to another view angle of the present invention;

fig. 3 is an exploded schematic view of a single-channel optical fiber rotary connection device according to an embodiment of the present invention;

fig. 4 is another exploded schematic view of a single-channel optical fiber rotary connection device according to an embodiment of the present invention.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a single channel optic fibre swivelling joint device.

As shown in fig. 1 to 4, in an embodiment of the present invention, the single-channel optical fiber rotary connection device includes a housing 101, a rear cover 102, a rotary sleeve 103, a fixed sleeve 104, and an optical fiber collimator 105, wherein the housing 101 is disposed in a cylindrical structure, the rear cover 102 is detachably covered on a rear end portion of the housing 101, the housing 101 is recessed along a length direction to form a first through hole 1011, the rotary sleeve 103 is rotatably disposed on a rear end portion of the first through hole 1011, the fixed sleeve 104 is embedded on a front end portion of the first through hole 1011, and the rotary sleeve 103 and the fixed sleeve 104 are connected at an interval, the rear cover 102 is recessed to form a second through hole 1021, the rotary sleeve 103 rotatably extends out of the second through hole 1021, the optical fiber collimator 105 includes an optical fiber core 1051 and a self-focusing lens 1052, the self-focusing lens 1052 is respectively disposed on a front end portion of the optical fiber core 1051, the self-focusing lens 1052 is embedded in the rotating sleeve 103 and the fixed sleeve 104, and the self-focusing lens 1052 is respectively abutted against the inner peripheral walls of the rotating sleeve 103 and the fixed sleeve 104.

Specifically, the device further comprises a first bearing 106 and a second bearing 107, inner peripheral walls of the first bearing 106 and the second bearing 107 are respectively arranged on the rotating sleeve 103, and outer peripheral walls of the first bearing 106 and the second bearing 107 are respectively embedded in the inner peripheral wall of the rear end of the first through hole 1011.

Specifically, a limit step (not shown) is protruded from a front end portion of the first through hole 1011, and a front end wall of the first bearing 106 is abutted against the limit step.

Specifically, the device further comprises a spacer 108, wherein the spacer 108 is arranged on the rotating sleeve 103, and the spacer 108 is located between the first bearing 106 and the second bearing 107.

Specifically, the sealing device further comprises a sealing ring 109, a receiving groove 1022 extending in the circumferential direction is concavely formed in the inner peripheral wall of the second through hole 1021, the sealing ring 109 is embedded in the receiving groove 1022, and the outer peripheral wall of the rotating sleeve 103 is in sliding abutting connection with the inner peripheral wall of the sealing ring 109.

Specifically, the portable electronic device further comprises a fastening bolt 110, a plurality of first threads 1012 and second threaded holes 1023 are respectively recessed in the rear end portions of the housing 101 and the rear cover 102 along the circumferential direction, and the fastening bolt 110 is respectively screwed in the first threads 1012 and the second threaded holes 1023 in sequence.

Specifically, a limiting boss (not shown) is convexly disposed on an inner side wall of the rear cover 102, and the limiting boss is embedded in the first through hole 1011.

Specifically, the optical fiber collimator is formed by accurately positioning an optical fiber core and a self-focusing lens, can convert transmission light in an optical fiber into collimated light (parallel light), or couple external parallel light (approximately parallel) into a single-mode optical fiber, firstly collimates light emergent from a first optical fiber by adopting a first collimator, and then focuses the collimated light into a second optical fiber by adopting another collimator, so that coupling between the optical fibers is realized.

Specifically, the utility model discloses an utilize optical collimator coupling light signal, adopt two self-focusing lens to expand the beam coupling, the realization will be followed the great (beam waist is little) light beam conversion of divergence angle and become the less (beam waist is big) light beam of divergence angle, thereby with lower loss coupling light signal, compare with traditional electric connector, and simple structure has, small and advantage with low costs, and convenient assembling, machining required precision has been reduced, when rotating work, contactless transmission, can not produce frictional wear, so long service life, the light is used to carry out signal transmission, no electromagnetic leakage, the security is good, anti-electromagnetic interference, allow the rotational speed high, therefore, the clothes hanger is strong in practicability.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. The single-channel optical fiber rotary connecting device is characterized by comprising a shell, a rear cover, a rotary sleeve, a fixed sleeve and an optical fiber collimator, wherein the shell is arranged in a cylindrical structure, the rear cover is detachably covered on the rear end part of the shell, the shell is concavely provided with a first through hole penetrating along the length direction, the rotary sleeve is rotatably arranged on the rear end part of the first through hole, the fixed sleeve is embedded on the front end part of the first through hole and is connected with the fixed sleeve at intervals, the rear cover is concavely provided with a second through hole, the rotary sleeve can rotatably extend out of the second through hole, the optical fiber collimator comprises an optical fiber core and a self-focusing lens, the self-focusing lens is respectively arranged on the front end part of the optical fiber core, the self-focusing lens is respectively embedded in the rotary sleeve and the fixed sleeve, and the self-focusing lens is respectively abutted against the inner peripheral walls of the rotating sleeve and the fixed sleeve.

2. The single-channel optical fiber rotary connection device according to claim 1, further comprising a first bearing and a second bearing, wherein inner peripheral walls of the first bearing and the second bearing are respectively disposed on the rotary sleeve, and outer peripheral walls of the first bearing and the second bearing are respectively embedded in the inner peripheral wall of the rear end portion of the first through hole.

3. The single-channel optical fiber rotary connection device of claim 2, wherein a limiting step is protruded from a front end of the first through hole, and a front end wall of the first bearing is abutted against the limiting step.

4. The single pass fiber optic rotary connection device of claim 2, further comprising a spacer disposed on the rotary sleeve, the spacer being located between the first and second bearings.

5. The single-channel optical fiber rotary connection device according to claim 1, further comprising a sealing ring, wherein a receiving groove extending in the circumferential direction is concavely formed in the inner peripheral wall of the second through hole, the sealing ring is embedded in the receiving groove, and the outer peripheral wall of the rotary sleeve is slidably abutted to the inner peripheral wall of the sealing ring.

6. The single-channel optical fiber rotary connection device according to claim 1, further comprising a fastening bolt, wherein a plurality of first threads and second threaded holes are respectively recessed in the rear end portions of the housing and the rear cover along the circumferential direction, and the fastening bolt is respectively screwed in the first threads and the second threaded holes in sequence.

7. The single-channel optical fiber rotary connection device as claimed in claim 1, wherein a limiting boss is convexly provided on the inner side wall of the rear cover, and the limiting boss is embedded in the first through hole.