CN110618500B - Locking fiber connector plug casing and locking fiber connector plug - Google Patents
Locking fiber connector plug casing and locking fiber connector plug Download PDFInfo
- Publication number
- CN110618500B CN110618500B CN201910329835.4A CN201910329835A CN110618500B CN 110618500 B CN110618500 B CN 110618500B CN 201910329835 A CN201910329835 A CN 201910329835A CN 110618500 B CN110618500 B CN 110618500B
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- locking
- shell
- locking shell
- connecting nut
- sleeve
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3869—Mounting ferrules to connector body, i.e. plugs
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/389—Dismountable connectors, i.e. comprising plugs characterised by the method of fastening connecting plugs and sockets, e.g. screw- or nut-lock, snap-in, bayonet type
- G02B6/3894—Screw-lock type
Abstract
The invention relates to a locking optical fiber connector plug shell and a locking optical fiber connector plug. The anti-loose optical fiber connector plug shell comprises a front sleeve and a rear sleeve; the connecting nut is sleeved outside the front sleeve; the locking shell is assembled on the outer side of the front sleeve or the rear sleeve in a sliding and guiding manner along the axis of the front sleeve; the locking shell is provided with a locking position in the sliding stroke, and a concave-convex matching structure is arranged at the matching surface of the locking shell and the plug bush of the connecting nut so as to realize rotation stopping; the locking shell is provided with an unlocking position, and the locking is released when the locking shell is positioned at the unlocking position; a locking shell rotation stopping structure is arranged between the rear sleeve and the locking shell; and a spring which presses the locking shell towards the connecting nut to keep the locking shell at the locking position is arranged between the rear sleeve and the locking shell. The locking shell is used for locking the connecting nut, the structure of the locking shell is simple, the rotation stopping is reliable through the circumferential plug bush matching surface, and the locking nut can be prevented from loosening in the vibration occasion to influence the butt joint of optical fibers.
Description
Technical Field
The invention relates to a locking optical fiber connector plug shell and a locking optical fiber connector plug.
Background
FC fiber optic connector assemblies are a common type of fiber optic connector assembly in which a plug and a receptacle are threadably connected together. Because of being the standard connector, FC fiber connector assembly has obtained very extensive application, and the plug in FC fiber connector assembly generally includes front cover and back cover, and the plug core part cartridge is in front cover and back cover, and front cover and back cover are in the same place through threaded connection, and the front cover outside cover is equipped with the connecting nut who is connected with the socket, and connecting nut is used for with socket threaded connection. However, in some environments where vibration, shock, etc. are present, the plug and the receptacle, which are merely screwed together, may loosen and interfere with the mating of the optical fibers.
Disclosure of Invention
The invention aims to provide a plug shell of an anti-loose optical fiber connector, which aims to solve the problem that in the prior art, a plug and a socket which are assembled together only through threads are loosened to influence the butt joint of optical fibers; the invention also aims to provide an anti-loose optical fiber connector plug, which solves the problem that the butt joint of optical fibers is influenced because the plug and the socket which are assembled together only through threads are loosened in the prior art.
In order to achieve the purpose, the technical scheme of the anti-loosening optical fiber connector plug shell is as follows:
the anti-loose optical fiber connector plug shell comprises a front sleeve and a rear sleeve, wherein the front sleeve is connected with the rear sleeve to form an inner cavity for installing the inserting core component; the connecting nut is sleeved outside the front sleeve and is used for being in threaded connection with the socket; the locking shell is assembled outside the front sleeve or the rear sleeve in a sliding and guiding mode along the axial direction of the front sleeve; the locking shell is provided with a locking position which enables the end part of the locking shell to be matched with the end part plug bush of the connecting nut in the sliding stroke of the locking shell, and a concave-convex matching structure is arranged at the matching surface of the locking shell and the plug bush of the connecting nut, so that the rotation stopping between the locking shell and the connecting nut can be realized through the concave-convex matching structure; the locking shell is provided with an unlocking position where the locking shell is separated from the connecting nut in the sliding stroke of the locking shell, and the locking of the connecting nut is released when the locking shell is positioned at the unlocking position; a locking shell rotation stopping structure for preventing the locking shell from rotating at a locking position is arranged between the rear sleeve and the locking shell; and a second spring which presses the locking shell towards the connecting nut to keep the locking shell at the locking position is arranged between the rear sleeve and the locking shell.
The anti-loose optical fiber connector plug shell has the beneficial effects that: the invention is provided with a locking shell in a rotation-stopping sliding sleeve outside a front sleeve or a rear sleeve, the end part of the locking shell can move to a locking position towards a connecting nut and then is inserted and sleeved with the end part of the connecting nut, the rotation stopping of the connecting nut is realized through a concave-convex matching structure arranged on the matching surface of an insert sleeve, and a second spring is also arranged on the optical fiber connector plug shell to press the locking shell on the locking position to keep locking the connecting nut; when the connecting nut needs to be rotated, the locking shell is pulled to separate from the connecting nut, so that the locking of the connecting nut is released. The locking shell is used for locking the connecting nut, the structure of the locking shell is simple, the rotation stopping is reliable through the circumferential plug bush matching surface, and the locking nut can be prevented from loosening on the occasion of vibration to influence the butt joint of optical fibers.
Furthermore, the concave-convex matching structures are continuously distributed in the circumferential direction of the plug bush matching surface. After the concave-convex matching structures are continuously distributed, the locking shell and the connecting nut can be butted together only by rotating a small angle, and the structural strength can be enhanced.
Furthermore, the concave-convex matching structure comprises an outer gear arranged on one of the lock shell and the connecting nut and an inner gear arranged on the other, and the inner gear and the outer gear are matched. The gear structure is convenient to process.
Furthermore, the end part of the locking shell is sleeved on the outer side of the end part of the connecting nut. Because the connecting nut is internally provided with the annular bulge with the step surface for compressing the peripheral surface of the front sleeve, compared with the connecting nut with the end part inserted outside the end part of the locking shell, the end part of the connecting nut is positioned in the locking shell, so that the end part of the connecting nut has smaller size, larger jacking area with the annular bulge and difficult damage.
Further, the locking shell is assembled on the outer side of the rear sleeve in a sliding and guiding mode along the axial direction of the front sleeve. The locking shell rotation stopping structure is arranged on the rear sleeve, the connection between the front sleeve and the rear sleeve cannot be influenced, and the strength and the reliability of the optical fiber connector plug are improved on the premise of playing a role in preventing looseness.
Further, locking casing passes through keyway structure cooperation with the back cover and is in the same place, and the keyway structure includes spout and sliding key, and the spout is followed back cover axial extension, and the spout lateral wall is stopped with sliding key in back cover circumference to realize locking casing and the assembly of splining of back cover, the keyway structure constitutes locking casing splining structure. The keyway structure is comparatively simple, and the locking casing of being convenient for and the processing and the preparation of back cover also are convenient for lock the assembly of casing and back cover to compare in setting up the breach, set up the structural strength that the back cover can be guaranteed to the recess, improved the reliability.
Furthermore, the sliding groove is communicated with a hook groove at a position far away from the locking shell, the hook groove is positioned at one side of the sliding groove, the sliding key can rotate the locking shell at the position of the locking shell at the unlocking position to enable the sliding key to enter the hook groove, and when the sliding key is positioned in the hook groove, the groove wall of the hook groove is matched with the sliding key along the axial stop of the rear sleeve to prevent the locking shell from returning to the locking position. After the sliding key enters the hooking groove, the locking shell can be temporarily hooked on the unlocking position, the locking shell does not need to be pulled all the time during installation to prevent the locking shell from resetting to the locking position, and the connection operation can be conveniently carried out by one hand in narrow and small space.
Furthermore, the outer peripheral surface of the rear sleeve is step-shaped and comprises a large-diameter section and a small-diameter section, wherein a thread section used for being matched with the front sleeve is arranged on the small-diameter section, and the sliding groove is arranged on the large-diameter section. The chute is arranged on the large-diameter section of the outer peripheral surface of the back sleeve, so that the chute is convenient to process and manufacture.
In order to achieve the purpose, the technical scheme of the anti-loosening optical fiber connector plug is as follows:
the anti-loosening optical fiber connector plug comprises an optical fiber connector plug shell and a plug core component inserted in the optical fiber connector plug shell, wherein the anti-loosening optical fiber connector plug shell comprises a front sleeve and a rear sleeve, and the front sleeve is connected with the rear sleeve to form an inner cavity for installing the plug core component; the connecting nut is sleeved outside the front sleeve and is used for being in threaded connection with the socket; the locking shell is assembled outside the front sleeve or the rear sleeve in a sliding and guiding mode along the axial direction of the front sleeve; the locking shell is provided with a locking position which enables the end part of the locking shell to be matched with the end part plug bush of the connecting nut in the sliding stroke of the locking shell, and a concave-convex matching structure is arranged at the matching surface of the locking shell and the plug bush of the connecting nut, so that the rotation stopping between the locking shell and the connecting nut can be realized through the concave-convex matching structure; the locking shell is provided with an unlocking position where the locking shell is separated from the connecting nut in the sliding stroke of the locking shell, and the locking of the connecting nut is released when the locking shell is positioned at the unlocking position; a locking shell rotation stopping structure for preventing the locking shell from rotating at a locking position is arranged between the rear sleeve and the locking shell; and a second spring which presses the locking shell towards the connecting nut to keep the locking shell at the locking position is arranged between the rear sleeve and the locking shell.
The anti-loose optical fiber connector plug has the beneficial effects that: the invention is provided with a locking shell in a rotation-stopping sliding sleeve outside a front sleeve or a rear sleeve, the end part of the locking shell can move to a locking position towards a connecting nut and then is inserted and sleeved with the end part of the connecting nut, the rotation stopping of the connecting nut is realized through a concave-convex matching structure arranged on the matching surface of an insert sleeve, and a second spring is also arranged on the optical fiber connector plug shell to press the locking shell on the locking position to keep locking the connecting nut; when the connecting nut needs to be rotated, the locking shell is pulled to separate from the connecting nut, so that the locking of the connecting nut is released. The locking shell is used for locking the connecting nut, the structure of the locking shell is simple, the rotation stopping is reliable through the circumferential plug bush matching surface, and the locking nut can be prevented from loosening on the occasion of vibration to influence the butt joint of optical fibers.
Furthermore, the concave-convex matching structures are continuously distributed in the circumferential direction of the plug bush matching surface. After the concave-convex matching structures are continuously distributed, the locking shell and the connecting nut can be butted together only by rotating a small angle, and the structural strength can be enhanced.
Furthermore, the concave-convex matching structure comprises an outer gear arranged on one of the lock shell and the connecting nut and an inner gear arranged on the other, and the inner gear and the outer gear are matched. The gear structure is convenient to process.
Furthermore, the end part of the locking shell is sleeved on the outer side of the end part of the connecting nut. Because the connecting nut is internally provided with the annular bulge with the step surface for compressing the peripheral surface of the front sleeve, compared with the connecting nut with the end part inserted outside the end part of the locking shell, the end part of the connecting nut is positioned in the locking shell, so that the end part of the connecting nut has smaller size, larger jacking area with the annular bulge and difficult damage.
Further, the locking shell is assembled on the outer side of the rear sleeve in a sliding and guiding mode along the axial direction of the front sleeve. The locking shell rotation stopping structure is arranged on the rear sleeve, the connection between the front sleeve and the rear sleeve cannot be influenced, and the strength and the reliability of the optical fiber connector plug are improved on the premise of playing a role in preventing looseness.
Further, locking casing passes through keyway structure cooperation with the back cover and is in the same place, and the keyway structure includes spout and sliding key, and the spout is followed back cover axial extension, and the spout lateral wall keeps off with the sliding key in back cover circumference and ends to realize locking casing and the assembly of splining of back cover, the keyway structure constitutes locking casing splining structure. The keyway structure is comparatively simple, and the locking casing of being convenient for and the processing and the preparation of back cover also are convenient for lock the assembly of casing and back cover to compare in setting up the breach, set up the structural strength that the back cover can be guaranteed to the recess, improved the reliability.
Furthermore, the sliding groove is communicated with a hook groove at a position far away from the locking shell, the hook groove is positioned at one side of the sliding groove, the sliding key can rotate the locking shell at the position of the locking shell at the unlocking position to enable the sliding key to enter the hook groove, and when the sliding key is positioned in the hook groove, the groove wall of the hook groove is matched with the sliding key along the axial stop of the rear sleeve to prevent the locking shell from returning to the locking position. After the sliding key enters the hooking groove, the locking shell can be temporarily hooked on the unlocking position, the locking shell does not need to be pulled all the time during installation to prevent the locking shell from resetting to the locking position, and the connection operation can be conveniently carried out by one hand in narrow and small space.
Furthermore, the outer peripheral surface of the rear sleeve is step-shaped and comprises a large-diameter section and a small-diameter section, wherein a thread section used for being matched with the front sleeve is arranged on the small-diameter section, and the sliding groove is arranged on the large-diameter section. The chute is arranged on the large-diameter section of the outer peripheral surface of the back sleeve, so that the chute is convenient to process and manufacture.
Drawings
FIG. 1 is a half-sectional view of an embodiment of a loose-proof fiber optic connector plug housing of the present invention;
FIG. 2 is a schematic view of the coupling nut of FIG. 1;
FIG. 3 is a schematic view of the locking housing of FIG. 1 showing the internal structure;
FIG. 4 is a schematic structural view of the rear cover of FIG. 1;
description of reference numerals: 1-front cover; 11-an annular projection; 2-rear sleeve; 21-a large diameter section; 22-a medium diameter section; 23-a small diameter section; 24-a chute; 25-hooking grooves; 3-ceramic pin insertion; 4-a flange plate; 5-connecting a screw cap; 51-step surface; 52-an external gear; 6-locking the housing; 61-internal gear; 62-a feather key; 71-a first spring; 72-a second spring; 8-a nut; 9-sheath.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
In the specific embodiment of the plug housing of the anti-loose optical fiber connector, as shown in fig. 1, the optical fiber connector comprises a front sleeve 1 and a rear sleeve 2, the front sleeve 1 and the rear sleeve 2 are connected together through threads, and inner cavities of the front sleeve 1 and the rear sleeve 2 are used for a ferrule component. The left end in the definition figure 1 is a front end, the ferrule component comprises a ceramic ferrule 3 used for being inserted with a fiber core of an optical fiber, a flange plate 4 is arranged behind the ceramic ferrule 3, the front end of the flange plate 4 is sleeved outside the rear end of the ceramic ferrule 3, the outer peripheral surface of the flange plate 4 and the inner peripheral surface of the rear sleeve 2 are both of a step-shaped structure, a first spring 71 is arranged between the two step surfaces, and the flange plate 4 and the ceramic ferrule 3 are pushed out towards the socket direction under the elastic force of the first spring 71 to provide the butting pretightening force for the optical fiber.
The outer side of the front sleeve 1 is sleeved with a connecting nut 5, an internal thread is arranged on the connecting nut 5 and is used for being matched with an external thread of a socket to lock the plug and the socket, a step surface 51 is arranged on the rear side of the internal thread, the step surface 51 can be matched with an annular bulge 11 arranged on the outer peripheral surface of the front sleeve 1 in a blocking mode along the axial direction of the front sleeve 1, and when the connecting nut 5 is rotated to be connected with the socket, the connecting nut 5 can press the front sleeve 1 forwards through the step surface 51.
As shown in fig. 1, 2 and 3, in order to make the coupling nut 5 have high reliability even in some vibration situations and not to loosen itself, a lock case 6 for locking the coupling nut 5 is sleeved outside the rear cover 2 in this embodiment. The lock housing 6 is assembled on the rear sleeve 2 in a sliding guiding mode and is assembled with the rear sleeve 2 in a rotation stopping mode, a circle of inner gear 61 is arranged at the front end of the lock housing 6, an outer gear 52 matched with the inner gear 61 is arranged behind the step surface 51 of the connecting nut 5, the inner gear 61 and the outer gear 52 form a concave-convex matching structure, and the tooth surfaces of the inner gear 61 and the outer gear 52 are matched surfaces of the plug bush. When the locking shell 6 is close to the connecting nut 5, the front end of the locking shell can be sleeved on the outer side of the rear end of the connecting nut, so that the internal gear 61 and the external gear 52 are meshed together, the locking shell 6 and the connecting nut 5 are in rotation-stopping fit through the internal gear 61 and the external gear 52, and the locking shell 6 is assembled on the rear sleeve 2 in a rotation-stopping manner, so that the connecting nut 5 can be locked, the connecting nut 5 is prevented from rotating, and the locking shell 6 is located at a locking position; when the lock housing 6 is away from the coupling nut 5, the internal gear 61 and the external gear 52 are disengaged, the lock housing 6 releases the lock of the coupling nut 5, and the coupling nut 5 can rotate freely to achieve the coupling or disengagement with the socket, and at this time, the lock housing 6 is located at the unlock position. It should be noted that the unlocking position and the locking position are not only specific to a specific position, but the position of the lock housing 6 when the gear structure between the lock housing 6 and the coupling nut 5 is partially engaged to fully engaged is the locking position, and the position of the lock housing 6 after the gear structure between the lock housing 6 and the coupling nut 5 is separated is the unlocking position.
In other embodiments, the concave-convex matching structure can also be one or more mutually matched positioning keys and key grooves, the positioning keys are arranged at the rear end of the connecting nut, the key grooves are arranged at the front end of the locking shell, and the locking shell and the connecting nut are prevented from rotating after the positioning keys and the key grooves are inserted together. In other embodiments, the outer circumferential surface of the rear end of the coupling nut may be provided with continuously distributed spherical protrusions, and the inner circumferential surface of the front end of the lock housing may be provided with corresponding wave-shaped grooves corresponding to the spherical protrusions. In other embodiments, the rear end of the coupling nut may be sleeved outside the front end of the lock housing, and the coupling nut and the lock housing may be engaged with each other through a gear structure or a key groove structure. In other embodiments, the section of the rear end of the connecting nut and the section of the front end of the locking housing are polygons corresponding to each other, the two polygons are matched to realize rotation stopping, in order to facilitate the connecting nut to be locked in time, the number of the polygon sides is large, the original shape and structure of the connecting nut and the locking housing should not be affected, the outward convex edge on the outer peripheral surface of the connecting nut forms a convex part of a concave-convex matching structure, and the edge on the inner peripheral surface of the locking housing forms a concave part of the concave-convex matching structure.
As shown in fig. 1, 3 and 4, in the present embodiment, the lock housing 6 and the rear sleeve 2 are assembled together in a rotation-stop manner through a key groove structure, which is simple and easy to machine. Specifically, the outer peripheral surface of the rear sleeve 2 is of a step-shaped structure and comprises a small-diameter section 23, a middle-diameter section 22 and a large-diameter section 21, wherein an external thread matched with the front sleeve 1 in a threaded manner is arranged on the small-diameter section 23, after the front sleeve 1 and the rear sleeve 2 are connected in a threaded manner, the outer peripheral surface of the rear end of the front sleeve 1 is flush with the outer peripheral surface of the middle-diameter section 22, a sliding groove 24 in a key groove structure is arranged on the large-diameter section 21, and the sliding groove 24 extends backwards from the end surface of the front end of the large-diameter section 21. The rear end of the locking shell 6 is provided with a sliding key 62, the sliding key 62 and the side wall of the sliding groove 24 are in stop fit in the circumferential direction of the rear sleeve 2 to realize the rotation stopping assembly of the locking shell 6 and the rear sleeve 2, and the key groove structure forms a rotation stopping structure of the locking shell. The outer sides of the middle diameter section 22 of the rear sleeve 2 and the rear end of the front sleeve 1 are also sleeved with a second spring 72, the rear end of the second spring 72 is propped against the step surface at the front end of the large diameter section 21, and the front end of the second spring is propped against the rear end surface of the gear 61 in the lock shell 6, so that the acting force for enabling the lock shell 6 to be close to the connecting nut 5 is applied to the lock shell 6. In other embodiments, the locking housing may be set to be a hexagonal cylindrical structure, and the large-diameter section of the rear sleeve is set to be a hexagonal prism structure adapted to the hexagonal cylindrical structure, so as to realize the rotation-stopping guide assembly of the locking housing and the rear sleeve. In other embodiments, the sliding groove may be disposed on the inner circumferential surface of the lock housing, and the sliding key may be disposed on the outer circumferential surface of the rear cover.
As shown in fig. 4, in order to facilitate the one-hand operation, the rear end of the sliding groove 24 is further communicated with a hook groove 25, and the hook groove 25 extends along the circumferential direction of the rear sleeve 2 and is arranged in an L shape with the sliding groove 24. The sliding key 62 of the lock housing 6 slides to the end of the sliding groove 24, because the hook groove 25 extends along the circumferential direction, the lock housing 6 can rotate at this position, the sliding key 62 enters the hook groove 25, the lock housing 6 is loosened, the sliding key 62 can be locked at the end of the hook groove 25 under the elastic action of the second spring 72, so that the lock housing 6 is kept at the unlocking position at the rear, the sliding key 62 is prevented from moving to the sliding groove 24 from the hook groove 25 when the connecting nut 5 is rotated, and then the lock housing 6 is reset to the locking position, and the influence is generated on the connecting nut 5. After the sliding key 62 enters the hook groove 25, the sliding key 62 and the side wall of the hook groove 25 are stopped in the rear sleeve axial direction, the locking shell 6 is temporarily hooked in the unlocking position, the locking shell 6 does not need to be pulled all the time during installation to prevent the locking shell 6 from returning to the locking position, and the connection operation can be conveniently carried out by one hand in narrow space. In other embodiments, the hooking groove is not provided, and when the knob is required to connect the nut, one hand pulls the locking housing backwards and the other hand screws the locking housing. In other embodiments, the hooking groove and the sliding groove may not be arranged vertically, but one side of the hooking groove far from the sliding groove is gradually close to the front sleeve to prevent the sliding groove from moving into the sliding groove by the hooking groove. In other embodiments, the hooking groove may not be provided at the end of the sliding groove, but at a mid-section position.
The rear end of the optical fiber connector plug shell is further provided with a sheath 9, the front end of the sheath 9 is provided with an annular bulge, a nut 8 is sleeved outside the sheath 9, the inner circumferential surface of the nut 8 is a stepped hole with a large front end opening diameter, and a stepped surface in the stepped hole is in axial jacking fit with the annular bulge of the sheath 9 along the sheath 9. Be provided with the external screw thread on the nut 8, with the internal thread adaptation that back cover 2 set up in major diameter section 21, behind nut 8 and the 2 threaded connection of back cover, nut 8 compresses tightly sheath 9 forward through the step face. When the optical fiber connector plug shell is not plugged with a socket, a dust cover is further sleeved on the outer side of the ceramic contact pin 3.
The locking housing 6 in this embodiment is assembled on the rear sleeve 2 in a rotation stopping guiding manner, and in other embodiments, the rotation stopping guiding manner may also be assembled on the front sleeve, for example, a slot extending along the axial direction of the front sleeve is arranged at a threaded section of the front sleeve for connecting with the rear sleeve, a notch is arranged at one side of the rear end of the slot, a protrusion extends from the inner side of the locking housing near the front end to the radial center, and the protrusion slides in the slot and is stopped by the side wall of the slot, so as to realize the rotation stopping guiding assembly of the locking housing and the front sleeve.
In the embodiment of the anti-loose optical fiber connector plug of the invention, the anti-loose optical fiber connector plug comprises an optical fiber connector plug shell and an optical fiber inserted in the optical fiber connector plug shell, wherein the structure of the optical fiber connector plug shell is the same as that in the specific embodiment of the anti-loose optical fiber connector plug shell, and the installation mode of the optical fiber and the optical fiber connector plug shell is the same as that in the prior art, and the description is omitted here.
Claims (4)
1. Locking fiber connector plug casing, characterized by includes:
a front cover;
a rear sleeve;
the front sleeve and the rear sleeve are connected to form an inner cavity for installing the core inserting component;
the connecting nut is sleeved outside the front sleeve and is used for being in threaded connection with the socket;
the locking shell is assembled on the outer side of the rear sleeve in a sliding and guiding manner along the axial direction of the front sleeve;
the locking shell is provided with a locking position which enables the end part of the locking shell to be matched with the end part plug bush of the connecting nut in the sliding stroke of the locking shell, and a concave-convex matching structure is arranged at the matching surface of the locking shell and the plug bush of the connecting nut, so that the rotation stopping between the locking shell and the connecting nut can be realized through the concave-convex matching structure;
the locking shell is provided with an unlocking position where the locking shell is separated from the connecting nut in the sliding stroke of the locking shell, and the locking of the connecting nut is released when the locking shell is positioned at the unlocking position;
a locking shell rotation stopping structure for preventing the locking shell from rotating at a locking position is arranged between the rear sleeve and the locking shell;
a second spring which presses the locking shell towards the connecting nut to keep the locking shell at the locking position is arranged between the rear sleeve and the locking shell; the concave-convex matching structure is continuously distributed in the circumferential direction of the matching surface of the plug bush, the concave-convex matching structure comprises an outer gear and an inner gear, the outer gear is arranged on one of the locking shell and the connecting nut, the inner gear and the outer gear are matched, the locking shell and the rear bush are matched together through the key groove structure, the key groove structure comprises a sliding groove and a sliding key, the sliding groove extends along the axial direction of the rear bush, the side wall of the sliding groove and the sliding key are stopped in the circumferential direction of the rear bush so as to realize the rotation stopping assembly of the locking shell and the rear bush, and the key groove structure forms the rotation stopping structure of the locking shell; the sliding groove is communicated with a hook groove at a position far away from the locking shell, the hook groove is positioned on one side of the sliding groove, the sliding key can rotate the locking shell when the locking shell is unlocked to enable the sliding key to enter the hook groove, when the sliding key is positioned in the hook groove, the wall of the hook groove is matched with the sliding key along the axial stop of the rear sleeve to prevent the locking shell from returning to the locking position, and the hook groove extends along the circumferential direction of the rear sleeve and is arranged in an L shape with the sliding groove.
2. The anti-loose fiber optic connector plug housing of claim 1, wherein the end of the locknut is received on the outside of the end of the coupling nut.
3. The anti-loose optical fiber connector plug housing of claim 1, wherein the outer peripheral surface of the rear sleeve is stepped and comprises a major diameter section and a minor diameter section, wherein a threaded section for mating with the front sleeve is provided on the minor diameter section, and the sliding groove is provided on the major diameter section.
4. The anti-loose optical fiber connector plug comprises an optical fiber connector plug shell and a ferrule component inserted in the optical fiber connector plug shell, and is characterized in that the optical fiber connector plug shell is the anti-loose optical fiber connector plug shell of any one of the claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910329835.4A CN110618500B (en) | 2019-04-23 | 2019-04-23 | Locking fiber connector plug casing and locking fiber connector plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910329835.4A CN110618500B (en) | 2019-04-23 | 2019-04-23 | Locking fiber connector plug casing and locking fiber connector plug |
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| Publication Number | Publication Date |
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| CN110618500A CN110618500A (en) | 2019-12-27 |
| CN110618500B true CN110618500B (en) | 2021-07-30 |
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| CN201910329835.4A Active CN110618500B (en) | 2019-04-23 | 2019-04-23 | Locking fiber connector plug casing and locking fiber connector plug |
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| TWI750865B (en) * | 2020-02-21 | 2021-12-21 | 劉美妙 | Optical connector and optical connector module and operation method using the same |
| TWI740692B (en) * | 2020-09-08 | 2021-09-21 | 劉美妙 | Optical connector and optical connector module and operation method using the same |
| CN115014225B (en) * | 2022-06-02 | 2023-05-02 | 重庆大学 | Thread structure looseness measuring device based on distributed optical fiber sensing |
| CN116908968B (en) * | 2023-09-12 | 2023-11-24 | 无限光通讯(深圳)有限公司 | Optical fiber connector with error touch-proof and falling-off functions |
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| CN104503034B (en) * | 2014-12-18 | 2018-01-05 | 中航光电科技股份有限公司 | Locking thread joints of optical fibre housing unit |
| CN104536097A (en) * | 2014-12-18 | 2015-04-22 | 中航光电科技股份有限公司 | Threaded looseness prevention optical fiber connector plug |
| DE202015106343U1 (en) * | 2015-11-20 | 2017-02-22 | Weidmüller Interface GmbH & Co. KG | Connector part for a plug connection |
| CN207320457U (en) * | 2017-09-29 | 2018-05-04 | 沈阳兴华航空电器有限责任公司 | A kind of nuclear industry electric connector |
| CN107732470B (en) * | 2017-09-29 | 2023-08-18 | 沈阳兴华航空电器有限责任公司 | Anti-loosening simple tail accessory |
| CN207504291U (en) * | 2017-10-26 | 2018-06-15 | 深圳市速联技术有限公司 | self-locking connector |
-
2019
- 2019-04-23 CN CN201910329835.4A patent/CN110618500B/en active Active
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