CN210430294U

CN210430294U - Self-locking connector with detachable contact piece and connector assembly

Info

Publication number: CN210430294U
Application number: CN201921556218.XU
Authority: CN
Inventors: 孙茂松; 姚强
Original assignee: Luoyang Saiyan Photoelectric Technology Co Ltd
Current assignee: Jiangsu Naguang Communication Technology Co.,Ltd.
Priority date: 2019-09-18
Filing date: 2019-09-18
Publication date: 2020-04-28
Anticipated expiration: 2029-09-18

Abstract

The utility model relates to a self-locking connector with a detachable contact piece and a connector component, which comprises a plug shell, wherein the plug shell is internally provided with a standard detachable contact piece in a detachable way; a connecting nut and a check nut which are in meshing transmission through gears at the end parts of the connecting nut and the check nut are arranged in the plug shell along the front and back directions of the axial direction, and the rear end of the check nut is stopped on a clamp spring in a clamp spring groove outside the plug shell; the locking nut and the plug shell are matched through the key groove and the convex key to realize radial limiting, and the convex key and the key groove can be mutually separated under the back-and-forth movement of the locking nut; a spring for providing forward force for the locknut is arranged between the boss on the inner side of the front end of the locknut and the check ring on the inner side of the rear end of the locknut; the gear on the front end face of the anti-loosening nut is meshed with the gear on the rear end face of the connecting nut to realize self-locking; the convex key or the key groove is L-shaped. The utility model discloses have and prevent that the screw thread is not hard up, install fast and maintain, still have little space, high density optical signal transmission's function.

Description

Self-locking connector with detachable contact piece and connector assembly

Technical Field

The utility model relates to a fiber connector technical field, concretely relates to self-locking connector and connector assembly that contact member can be installed and removed.

Background

The existing optical fiber connectors in the market generally adopt a mode that a connecting nut of the connector is provided with a fuse hole, and are bound by using a steel wire rope after being installed, so that the optical fiber connectors are vibration-resistant and anti-loose; during maintenance, the steel wire needs to be detached, and then a wrench is used for unscrewing a connecting nut of the connector. Meanwhile, due to the limitation of the installation mode of the product contact element, the contact element is of an unremovable structure. The above two problems exist: the installation and disassembly time is long, the time is consumed, and special tools are needed; the contact piece is of an unremovable structure, so that the maintenance of a user in the using process is inconvenient.

Disclosure of Invention

The utility model aims at providing a self-locking connector that contact member of novel structure can be installed, make its auto-lock anti loosening structure and the characteristics that the contact member can be installed by others that have mistake proofing, recognition function targets in place.

The purpose of the utility model and the technical problem to be solved are realized by adopting the following technical scheme. According to the utility model provides a self-locking connector with a detachable contact piece, which comprises a plug shell, wherein a standard detachable contact piece is detachably arranged in the plug shell; a connecting nut and a check nut which are in meshing transmission through gears at the end parts of the connecting nut and the check nut are arranged in the plug shell along the front and back directions of the axial direction, and the rear end of the check nut is stopped on a clamp spring in a clamp spring groove outside the plug shell; the locking nut and the plug shell are matched through the key groove and the convex key to realize radial limiting, and the convex key and the key groove can be mutually separated under the back-and-forth movement of the locking nut; an elastic part for providing forward force for the locknut is arranged between the boss on the inner side of the front end of the locknut and the check ring on the inner side of the rear end of the locknut; the gear on the front end face of the anti-loosening nut is meshed with the gear on the rear end face of the connecting nut to realize self-locking; the convex key or the key groove is L-shaped.

The purpose of the present invention and the technical problem thereof can be further achieved by the following technical measures.

The self-locking connector with the detachable contact piece has the advantages that the part of radial limit can be released when the locknut is pulled backwards until the convex key and the key groove are partially separated, and the axial limit and the radial limit can be simultaneously realized when the locknut is rotated under the matching of the convex key and the key groove.

The contact piece can be taken out of the self-locking connector, wherein the teeth of the gear have different inclination angles, so that the rotating torque of the gear in forward rotation and reverse rotation is different, and the rotating torque of the forward rotation locking of the connecting nut is smaller than the rotating torque of the reverse rotation unlocking.

The self-locking connector with the removable contact piece is characterized in that the lock nut is externally provided with a color code groove for distinguishing the relative position between the key groove and the convex key.

The contact is a removable self-locking connector, wherein the key is located on the inner peripheral surface of the locknut or the outer peripheral surface of the plug housing.

The purpose of the utility model and the technical problem thereof can also be realized by adopting the following technical scheme. According to the utility model provides a self-locking connector assembly with a detachable contact piece, which comprises a free end connector and a fixed end connector, wherein the front end of the free end connector is inserted oppositely; and a standard detachable contact piece is detachably arranged in the fixed end connector.

The self-locking connector assembly with the detachable contact piece is characterized in that the front ends of the fixed end connector and the free end connector are provided with a guide groove and a guide key with plugging and guiding functions.

The self-locking connector assembly with the removable contact piece comprises a plug shell of the free end connector and a socket shell of the fixed end connector, wherein the plug shell of the free end connector and the socket shell of the fixed end connector are provided with color code grooves, and the color code grooves on the outer part of the plug shell can be contrasted with the color code grooves on the outer part of the locknut to judge the relative position between the key groove and the convex key.

Compared with the prior art, the utility model obvious advantage and beneficial effect have. Borrow by above-mentioned technical scheme, the utility model discloses can reach considerable technical advancement and practicality to have the wide use value in the industry, it has following advantage at least:

1) the anti-loosening structure of the gear is adopted, so that the punching and binding actions of the steel wire rope are omitted, the operation is convenient, quick and simple, and the anti-vibration performance is better, so that the connector has excellent reliability and repeatability;

2) the adopted contact element is an optical fiber contact element which can be integrally taken out and disassembled, and the contact element can be integrally installed and disassembled by using a standard taking and assembling tool, so that the installation, the use, the maintenance and the repair of a user are facilitated. The product not only has the functions of preventing the screw thread from loosening and being quickly installed and maintained, but also has the functions of conveniently installing, using, maintaining and repairing a user by integrally installing and disassembling the contact piece by using a standard taking and assembling tool.

To sum up, the utility model provides an adopt to have gear and ripple spring etc. have the mistake proofing, the auto-lock anti loosening structure who targets in place recognition function, use the contact that can wholly get the dress simultaneously. The product not only has the functions of preventing the screw thread from loosening and being quickly installed and maintained, but also has the functions of small space and high-density optical signal transmission.

Drawings

FIG. 1 is a schematic view of the free end of the self-locking connector assembly with removable contacts according to the present invention;

FIG. 2 is a schematic view of the fixing end of the self-locking connector assembly with the removable contact member of the present invention;

FIG. 3 is a schematic view of the structure of the self-locking connector assembly with removable contacts according to the present invention;

FIG. 4 is a perspective view of the fixed end of the self-locking connector assembly with the removable contact member of the present invention;

FIG. 5 is a perspective view of the free end of the self-locking connector assembly with removable contacts according to the present invention;

FIG. 6 is a schematic view of the locking structure of the present invention;

FIG. 7 is a gear diagram of the anti-loose structure of the self-locking connector with removable contact members of the present invention;

FIG. 8 is a schematic view of the anti-loosening structure of the self-locking connector with the detachable contact member of the present invention;

FIG. 9 is a sectional view A-A of FIG. 8;

fig. 10 is a schematic view of a free end fiber optic contact of a self-locking connector assembly with removable contacts according to an embodiment of the present invention.

Fig. 11 is a schematic view of a fixed end fiber optic contact of a self-locking connector assembly with removable contacts according to an embodiment of the present invention.

[ description of main element symbols ]

1: plug shell

2: connecting nut

3: first seal ring

4: first color code groove

5: anti-loose nut

6: corrugated spring

7: check ring

8: first snap spring

9: first insulating member

10: tail nut

11: second seal ring

12: second snap spring

13: sleeve barrel

14: third seal ring

15: sealing nut

16: guiding groove

17: free end removable optical fiber contact

18: socket shell

19: optical fiber contact element with detachable fixed end

20: fourth seal ring

21: second insulating member

22: guiding key

23: second color code groove

24: convex key

25: key groove

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description will be given to the embodiments, structures, features and effects of the self-locking connector assembly with removable contact members according to the present invention, with reference to the accompanying drawings and preferred embodiments.

Please refer to fig. 1-11, which are schematic structural views of each part of the self-locking connector assembly that the contact member of the present invention can be assembled, the connector assembly includes a front end opposite-inserted free end connector and a fixed end connector, the free end connector includes a plug housing 1, the plug housing 1 is provided with a connection nut 2 and a lock nut 5 engaged with a gear through its end portion sequentially from front to back along the axial direction, an elastic member is provided between the lock nut 5 and the plug housing 1, the front end of the elastic member is pressed on a boss at the inner side of the front end of the lock nut, the rear end is pressed on a retaining ring 7 at the inner side of the rear end of the lock nut, and the rear end of the lock nut 5 is retained on a first clamp spring 8 in a clamp spring groove at the outer portion of the plug housing 1 to realize the backward axial limit. The stroke and thrust of the elastic element are such as to allow a complete engagement with the coupling nut when the locknut 5 is pushed out. In the embodiment of the present invention, the elastic member is a ripple spring 6, but is not limited thereto.

When the connector is inserted in place and locked, the connecting nut 2 and the locknut 5 are completely meshed through the gears at the ends of the connecting nut and the locknut. The plug comprises a plug shell and is characterized in that a key groove 25 is formed in the outer peripheral surface of the plug shell 1, a convex key 24 matched with the key groove is arranged in the corresponding position in the lock nut 5, when the connector is locked, the lock nut 5 moves towards the connecting nut 2 under the action of an elastic piece, and when the lock nut 5 is in butt engagement with the connecting nut, the key groove 24 and the convex key 25 achieve circumferential rotation stopping of the lock nut. During unlocking, the locknut 5 is pulled to move backwards, so that the key groove 24 and the convex key 25 are completely or partially separated, then the locknut is rotated, the convex key 25 and the key groove 24 are staggered, and the axial front end limiting of the locknut is realized.

The embodiment of the utility model provides an in, keyway 24 is the L type, and the perpendicular portion of this L type keyway is in the front, and the horizontal part is in the back, moves to the convex key 25 after pulling lock nut 5 and breaks away from L type keyway perpendicular portion when, and this lock nut radial component unblock rotates this connection nut for the convex key realizes radially and axially spacing with the perpendicular cooperation of portion of erecting of L type keyway. In the embodiment of the present invention, the key groove 24 is formed by two L-shaped keys, but is not limited thereto.

In another embodiment of the present invention, the convex key 25 is L-shaped, and the vertical part of the L-shaped convex key is in front, and the horizontal part is at the back, when the pulling lock nut 5 moves to the horizontal part of the convex key to separate from the key slot, the radial part of the lock nut is unlocked, and the connection nut is rotated, so that the vertical part of the convex key is matched with the key slot to realize radial and axial spacing.

The utility model discloses in other embodiments, protruding key 25 is located the plug housing outer peripheral face, and keyway 24 is located the lock nut inner wall, protruding key or keyway are the L type, its the vertical section of L type is in the back, and the horizontal part is in the front, when pulling lock nut 5 back move to the keyway break away from the horizontal part of L type protruding key or the vertical section of L type keyway break away from the protruding key, this lock nut radial part unblock rotates this coupling nut for radial and axial spacing is realized with the keyway cooperation to the vertical section of protruding key. In the embodiment of the present invention, the gear is equally divided according to the angle, the width of the gear decreases progressively towards the center of the circle, the height of the gear is unchanged, one side of the gear is a right angle, the other side of the gear has an oblique angle, the torque difference required by the forward rotation and the reverse rotation of the connection nut 2 is very large, and the design of the external structure, the convex key and the key slot of the gear makes the connection nut 2 loosen only by overcoming the very large torque under the condition of installing and locking the connector, so as to provide the connector with very large vibration resistance; when the connector needs to be unlocked and separated, the locknut 5 is pulled back, the convex key 25 and the key groove 24 are enabled to be relieved from the radial limiting state, the locknut 2 is rotated, the key groove 24 and the convex key 25 are axially clamped, the self-locking state of the locknut 2 and the locknut 5 is relieved, the free end connector and the fixed end connector can be normally separated, and the transmission of optical transmission signals is stopped.

In the embodiment of the present invention, the color mark groove 4 for distinguishing the relative position between the key groove 24 and the key 25 is provided outside the lock nut 5, and when the lock nut is rotated to the proper position, that is, the key groove 24 and the key 25 cooperate with the circumferential rotation stop, the staggered angle between the first color mark groove 4 outside the lock nut 5 and the second color mark groove 23 outside the front end of the socket housing 18 is about 42 degrees, but not limited thereto. The positional relationship between the key groove 24 and the key 25 can be judged by judging the angle between the first color mark groove 4 outside the locknut 5 and the second color mark groove 24 outside the front end of the socket housing 18. The utility model discloses a have the rigidity and target in place the L type convex key of mechanism effect, with the outside first color mark groove 4 cooperation that has the mistake proofing, the visual identification effect that targets in place that sets up of 5 front ends of lock nut, further guaranteed reliability, the convenience of auto-lock anti loosening structure.

The plug housing 1 is provided with a contact mounting hole therein, and the contact is mounted in the mounting hole and fixed inside the plug housing 1 through a first insulating member 9. In the embodiment of the present invention, the contact is a free end removable optical fiber contact 17, and the mounting hole is a removable optical fiber contact mounting hole. The utility model discloses a setting can be taken out and the purpose that the optic fibre contact member realized the connector miniaturization. The utility model discloses the connector adopts ripe can unload the optic fibre contact member, has guaranteed the reliability of optical signal at the inside transmission of connector in the product use, simultaneously, can unload the high density transmission that the optic fibre contact member can realize optical signal, has satisfied the requirement that the connector overall dimension is miniaturized, high density signal transmission under the restricted condition of factors such as space, environment.

The embodiment of the utility model provides an in, optical fiber contact 17 can be unloaded to the free end includes ceramic contact pin, is equipped with the ring channel on the caudal peduncle of this ceramic contact pin rear end, is equipped with spring and activity ring by preceding after to on this ring channel, and the preceding terminal surface block of this activity ring is on the step face in the contact mounting hole, first insulation part 9 on the plug casing is fixed caudal peduncle rear end realizes this contact axial rearward spacing. When the contact needs to be taken out, the first insulating part 9 can be used for releasing the limitation of the contact by a corresponding standard taking-out tool, and the contact is taken out.

The fixed end connector comprises a socket shell 18, a fixed end removable optical fiber contact element 19, a fourth sealing ring 20, a second insulating part 21 and a guide key 22; the front end of the socket shell 18 is provided with a guide key 22, when the fixed end connector is butted with the free end connector, the guide key 22 can move axially in the guide groove 16 of the plug shell 1, so that the first-stage guide of the butting of the connectors is realized, and the functions of blind plugging and wrong plugging prevention during the butting of the connectors in a complex environment are achieved; a guide pin is arranged in the socket shell 18, and when the fixed end connector is butted with the free end connector, the guide pin can be matched and butted with a guide pin hole arranged in the plug shell of the free end connector, so that the connector butting secondary guide is realized; the socket shell 18 is internally provided with a mounting hole of the fixed-end removable optical fiber contact element 19, the fixed-end removable optical fiber contact element 19 is mounted in the contact element mounting hole of the socket shell 18 and fixed in the socket shell 18 by a second insulating part 21, and the end faces of the removable optical fiber contact elements can be precisely butted with each other when the fixed-end connector is butted with the free-end connector, so that the function of transmitting high-density optical fiber signals is achieved; a sealing ring groove is arranged outside the socket shell 18, and a fourth sealing ring 20 is arranged in the sealing ring groove of the shell and used for sealing between the fixed end connector and the equipment panel; the color code groove 23 is arranged outside the front end of the socket shell 18 and used for visual identification with the color code groove 4 arranged outside the front end of the locknut 5 of the free-end connector, and the visual identification functions of visual error-proofing identification and locking in place of the self-locking anti-loosening structure during plug and socket opposite plugging are achieved.

The utility model discloses state when free end connector and fixed end connector normally butt joint, after free end connector and fixed end connector put in place through the meshing of threaded connection mode, the self-locking structure of free end connector through coupling nut 2, lock nut 5 etc. is closely locked, can effectively prevent the not hard up of connecting thread with the fixed end connector, simultaneously, can stably realize the accurate butt joint of optic fibre between the removable optic fibre contact member terminal surface of fixed end connector and free end connector, reach the stability, the reliability of transmission high density optical fiber signal; during separation, the locknut 5 is pulled back, the position relation of the key groove 24 of the locknut and the convex key 25 of the plug shell is rotated to clamp, the connecting nut 2 is unlocked, the free end connector and the fixed end connector can be normally separated through connecting threads, and the termination of optical transmission signals is quickly realized.

In the embodiment of the utility model, a sealing ring groove is arranged outside the front end of the plug shell 1, and a first sealing ring 3 is arranged in the shell sealing ring and used for sealing between the free end connector and the end face of the main shell of the fixed end connector; by afterbody nut 10, second sealing washer 11, second jump ring 12, sleeve 13, third sealing washer 14, the afterbody annex of seal nut 15 etc. constitution, through

afterbody nut

10 and 1 afterbody threaded connection of plug housing, second sealing washer 11 sets up in the seal ring inslot of afterbody nut 10, be used for the sealed of afterbody annex and 1 afterbody of plug housing, third sealing washer 14 sets up the seal ring groove at sleeve 13, be used for the sealed effect between connector afterbody annex and the optical cable, seal nut 15 sets up at sleeve 13 afterbody, can play connector optical cable tensile, anti crooked effect.

The utility model connects the nut and the locknut, which can be smoothly separated and engaged in the axial direction of the connector; the stroke and the thrust of the spring structure consisting of the corrugated spring, the check ring and the clamp spring meet the requirement that the spring structure can be completely meshed when the check nut is pushed out; the clamping mechanism comprises a plug shell convex key and a lock nut key groove, when the self-locking and anti-loosening structure is unlocked, the lock nut overcomes the elasticity of a corrugated spring, when the lock nut is pulled back, clamping can be smoothly carried out through rotating the lock nut key groove and the plug shell convex key position, the clamping mechanism is provided with a rigidity in-place mechanism and a color code groove visual identification mechanism, and when the lock nut rotates in place, the staggered angle of the lock nut external color code groove and the socket shell front end external color code groove is about 42 degrees.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed with the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make modifications or changes equivalent to the equivalent embodiment of the above embodiments without departing from the scope of the present invention, but all the modifications, changes and modifications of the above embodiments by the technical spirit of the present invention are within the scope of the present invention.

Claims

1. A self-locking connector with removable contacts, comprising a plug housing, characterized in that: a standard detachable contact piece is detachably arranged in the plug shell;

a connecting nut and a check nut which are in meshing transmission through gears at the end parts of the connecting nut and the check nut are arranged in the plug shell along the front and back directions of the axial direction, and the rear end of the check nut is stopped on a clamp spring in a clamp spring groove outside the plug shell;

the locking nut and the plug shell are matched through the key groove and the convex key to realize radial limiting, and the convex key and the key groove can be mutually separated under the back-and-forth movement of the locking nut;

a spring for providing forward force for the locknut is arranged between the boss on the inner side of the front end of the locknut and the check ring on the inner side of the rear end of the locknut;

the gear on the front end face of the anti-loosening nut is meshed with the gear on the rear end face of the connecting nut to realize self-locking;

the convex key or the key groove is L-shaped.

2. The contact-removable self-locking connector as claimed in claim 1, wherein: when the lock nut is pulled backwards to the part where the convex key and the key groove are separated, the radial limit of the part can be released, and the lock nut can be rotated to realize the axial limit and the radial limit under the matching of the convex key and the key groove.

3. The contact removable self-locking connector as claimed in claim 2, wherein: the teeth of the gear have different inclination angles, so that the rotating torque of the gear in forward rotation and reverse rotation is different, and the rotating torque of the connecting nut in forward rotation locking is smaller than that of reverse rotation loosening.

4. The contact removable self-locking connector as claimed in claim 2, wherein: and a color code groove for distinguishing the relative position between the key groove and the convex key is arranged outside the locknut.

5. The contact-removable self-locking connector as claimed in claim 1, wherein: the convex key is positioned on the inner peripheral surface of the locknut or the outer peripheral surface of the plug shell.

6. A self-locking connector assembly with removable contacts comprises a free end connector and a fixed end connector which are inserted oppositely at the front end, and is characterized in that: the free end connector is the self-locking connector of any one of claims 1-5; and a standard detachable contact piece is detachably arranged in the fixed end connector.

7. The contact removable self-locking connector assembly of claim 6, wherein: the front ends of the fixed end connector and the free end connector are provided with a guide groove and a guide key which have the function of inserting and guiding.

8. The contact removable self-locking connector assembly of claim 6, wherein: wherein the outside of free end connector plug casing and fixed end connector socket casing all is provided with the color mark groove, and the outside color mark groove of plug casing can carry out the judgement of the relative position between keyway and the convex key with the color mark groove contrast outside lock nut.