阅读说明：本技术 便于解锁的光模块 (Optical module convenient to unblock ) 是由 何喜荣 罗明 于 2020-12-18 设计创作，主要内容包括：本发明涉及一种便于解锁的光模块,包括有光模块本体以及用于解除或锁定光模块本体和金属笼之间连接的拉环机构,所述拉环机构包括有设置于光模块本体上的盖板和拉环；所述盖板具有用于枢接光模块本体的枢接部和分别位于枢接部前、后侧的第一旋转臂、第二旋转臂,所述第一旋转臂上设有用于与金属笼上的弹片锁槽相配合的锁头凸起；所述拉环与光模块本体枢接,所述拉环上设有解锁接触面和上锁接触面,所述第二旋转臂可选择性抵接于解锁接触面或上锁接触面上；其能够实现光模块本体与金属笼之间的解锁和上锁,使用方便,结构紧凑,省去了传统技术中的弹性结构,降低成本,也提高产品在使用过程中的稳定性和可靠性。(The invention relates to an optical module convenient to unlock, which comprises an optical module body and a pull ring mechanism used for unlocking or locking the connection between the optical module body and a metal cage, wherein the pull ring mechanism comprises a cover plate and a pull ring which are arranged on the optical module body; the cover plate is provided with a pivoting part for pivoting the optical module body, and a first rotating arm and a second rotating arm which are respectively positioned at the front side and the rear side of the pivoting part, and the first rotating arm is provided with a lock head bulge matched with a spring plate locking groove on the metal cage; the pull ring is pivoted with the optical module body, an unlocking contact surface and an locking contact surface are arranged on the pull ring, and the second rotating arm can selectively abut against the unlocking contact surface or the locking contact surface; the unlocking and locking device can realize unlocking and locking between the optical module body and the metal cage, is convenient to use and compact in structure, saves an elastic structure in the traditional technology, reduces the cost, and also improves the stability and reliability of a product in the using process.)

1. An optical module convenient to unlock, characterized in that: the optical module comprises an optical module body and a pull ring mechanism used for releasing or locking the connection between the optical module body and a metal cage, wherein the pull ring mechanism comprises a cover plate and a pull ring which are arranged on the optical module body;

the cover plate is provided with a pivoting part for pivoting the optical module body, and a first rotating arm and a second rotating arm which are respectively positioned at the front side and the rear side of the pivoting part, and the first rotating arm is provided with a lock head bulge matched with a spring plate locking groove on the metal cage;

the pull ring is pivoted with the optical module body, an unlocking contact surface and an locking contact surface are arranged on the pull ring, and the second rotating arm can selectively abut against the unlocking contact surface or the locking contact surface;

when the optical module body needs to be pulled out of the metal cage, after the pull ring is rotated, the unlocking contact surface abuts against the second rotating arm so that the lock head protrusion is separated from the elastic sheet lock groove of the metal cage;

when the optical module body is required to be inserted into the metal cage for use, after the optical module body is inserted into the metal cage and the pull ring is rotated in the opposite direction, the upper locking contact surface abuts against the second rotating arm so that the lock head protrusion is buckled with the elastic sheet locking groove of the metal cage.

2. The unlocking-facilitating light module of claim 1, wherein: the pull ring comprises a cross arm extending along the left-right direction and a cantilever integrally connected to the cross arm, the cross arm is pivoted to the optical module body, and the unlocking contact surface and the locking contact surface are both arranged on the cross arm.

3. The unlocking-facilitating light module of claim 2, wherein: the cross arm is provided with a protruding part in an protruding mode, the protruding part and the cantilever are located on the opposite side faces of the cross arm respectively, the unlocking contact surface and the locking contact surface are arranged on the protruding part, and a step is formed between the unlocking contact surface and the locking contact surface.

4. The unlocking-facilitating light module of claim 3, wherein: the lower end face of the second rotating arm is provided with a force-bearing inclined face inclining backwards from the front to the back, and the force-bearing inclined face can be selectively abutted against the unlocking contact face or the locking contact face.

5. The unlocking-facilitating light module of claim 4, wherein: the stress inclined plane is provided with an extension block in a downward protruding mode, the inner side face of the extension block is provided with a guide shaft portion in an inward protruding mode, correspondingly, the protruding portion is provided with a guide groove penetrating through the inner portion of the cross arm in a concave mode, and the guide shaft portion is matched with the guide groove.

6. The unlocking-facilitating light module of claim 5, wherein: and a rotating space for the step to rotate is formed between the guide shaft part and the stress inclined plane.

7. The unlocking-facilitating light module of claim 5, wherein: the cross arm is provided with a abdicating groove corresponding to the extending block, and the abdicating groove is communicated with the guide groove; an opening is formed in the upper locking contact surface and communicated with the guide groove.

8. The unlocking-facilitating light module of claim 2, wherein: the optical module comprises an optical module body, and is characterized in that a plug connector is arranged at the rear end of the optical module body, the plug connector extends out of the optical module body, an elastic contact end is arranged on the plug connector, a through hole penetrating through the inner side and the outer side of the cantilever is arranged on the cantilever, and the elastic contact end is adapted in the through hole and extends out of the cantilever.

9. The unlocking-facilitating light module of claim 2, wherein: the inboard of cantilever is toward the protruding handheld portion that is equipped with in, be equipped with the recess that supplies the finger to dig.

10. The unlocking-facilitating light module of claim 1, wherein: the optical module body comprises a base and a circuit board, wherein the base is provided with a mounting cavity which is through from front to back, and the circuit board is arranged in the mounting cavity;

the installation cavity has an upper end opening, the pin joint portion pin joint of apron is in the upper end opening part of installation cavity and the apron covers the upper end opening of installation cavity, the pull ring pin joint is in the rear end of base.

Technical Field

The invention relates to the technical field of optical modules, in particular to an optical module convenient to unlock.

Background

The steady development of the global telecommunication industry and the steady growth of broadband users lay a solid foundation for the development of the optical communication industry. With the continuous improvement of global bandwidth demand and the expansion of application fields of optical communication industries such as data centers and security monitoring, optical fiber broadband access has become a mainstream communication mode. Under the promotion of popularization of terminals such as smart phones and the like and applications such as video and cloud computing and the like, telecom operators continuously invest in building and upgrading mobile broadband networks and optical fiber broadband networks, and the investment scale of optical communication equipment is further enlarged.

The rapid development of the optical communication industry also drives the updating of the optical module. Existing light modules are typically plugged into a metal cage of a host through an unlocking device. Often current unlocking device can realize the pull ring through the elastic component resets and reset, and overall structure is complicated, and the stability and the reliability of elastic component are poor simultaneously, and it loses elastic force easily after using a period of time, influences the normal use of product then.

Therefore, in the present patent application, the applicant has studied a light module that is easy to unlock, in order to solve the above-mentioned problems.

Disclosure of Invention

The invention aims at the defects of the prior art, and mainly aims to provide an optical module convenient to unlock, which can realize unlocking and locking between an optical module body and a metal cage, is convenient to use and compact in structure, omits an elastic structure in the traditional technology, reduces the cost, and also improves the stability and reliability of a product in the using process.

In order to achieve the purpose, the invention adopts the following technical scheme:

an optical module convenient to unlock comprises an optical module body and a pull ring mechanism used for unlocking or locking the connection between the optical module body and a metal cage, wherein the pull ring mechanism comprises a cover plate and a pull ring which are arranged on the optical module body;

the cover plate is provided with a pivoting part for pivoting the optical module body, and a first rotating arm and a second rotating arm which are respectively positioned at the front side and the rear side of the pivoting part, and the first rotating arm is provided with a lock head bulge matched with a spring plate locking groove on the metal cage;

the pull ring is pivoted with the optical module body, an unlocking contact surface and an locking contact surface are arranged on the pull ring, and the second rotating arm can selectively abut against the unlocking contact surface or the locking contact surface;

when the optical module body needs to be pulled out of the metal cage, after the pull ring is rotated, the unlocking contact surface abuts against the second rotating arm so that the lock head protrusion is separated from the elastic sheet lock groove of the metal cage;

when the optical module body is required to be inserted into the metal cage for use, after the optical module body is inserted into the metal cage and the pull ring is rotated in the opposite direction, the upper locking contact surface abuts against the second rotating arm so that the lock head protrusion is buckled with the elastic sheet locking groove of the metal cage.

Preferably, the tab includes a cross arm extending in the left-right direction and a cantilever integrally connected to the cross arm, the cross arm is pivotally connected to the optical module body, and the unlocking contact surface and the locking contact surface are both provided on the cross arm.

Preferably, the cross arm is provided with a protruding portion, the protruding portion and the cantilever are respectively located on opposite sides of the cross arm, the unlocking contact surface and the locking contact surface are both arranged on the protruding portion, and a step is formed between the unlocking contact surface and the locking contact surface.

Preferably, the lower end surface of the second rotating arm is provided with a force-bearing inclined surface inclining upwards from front to back, and the force-bearing inclined surface can selectively abut against the unlocking contact surface or the locking contact surface.

Preferably, the force-receiving inclined surface is provided with an extension block protruding downward, an inner side surface of the extension block is provided with a guide shaft portion protruding inward, the projection portion is provided with a guide groove penetrating into the cross arm, and the guide shaft portion is fitted into the guide groove.

Preferably, a rotation space for the step rotation is formed between the guide shaft portion and the force receiving inclined surface.

As a preferable scheme, the cross arm is provided with a abdicating groove corresponding to the extending block, and the abdicating groove is communicated with the guide groove; an opening is formed in the upper locking contact surface and communicated with the guide groove.

As a preferred scheme, a plug connector is disposed at the rear end of the optical module body, the plug connector extends out of the optical module body, an elastic contact end is disposed on the plug connector, a through hole penetrating through the inner side and the outer side of the cantilever is disposed on the cantilever, and the elastic contact end is adapted in the through hole and extends out of the cantilever.

As a preferred scheme, the inner side of the cantilever is provided with a handheld part in an inward protruding mode, and the handheld part is provided with a groove for fingers to grab.

As a preferred scheme, the optical module body comprises a base and a circuit board, the base is provided with a mounting cavity which is through from front to back, and the circuit board is arranged in the mounting cavity;

the installation cavity has an upper end opening, the pin joint portion pin joint of apron is in the upper end opening part of installation cavity and the apron covers the upper end opening of installation cavity, the pull ring pin joint is in the rear end of base.

Compared with the prior art, the invention has obvious advantages and beneficial effects, particularly: the optical module locking and unlocking device has the advantages that the unlocking and locking between the optical module body and the metal cage can be realized mainly through the pull ring mechanism, the use is convenient, the structure is compact, an elastic structure in the traditional technology is omitted, and the stability and the reliability of a product in the use process are improved;

secondly, the locking efficiency and stability are improved through the matching of the guide shaft part and the guide groove;

moreover, through the matching of the elastic contact end of the plug connector and the through hole on the pull ring, the pull ring can be ensured to be accommodated in the plug connector after being locked, so that the space is saved, the appearance of the product is more attractive, the practicability of the product is improved, and particularly, the pull ring and the plug connector can be conveniently separated by arranging the groove on the pull ring;

and the whole structure is ingenious and reasonable in design, all parts are convenient and firm to assemble, and the stability and reliability of the product in the using process are further ensured.

To more clearly illustrate the structural features and effects of the present invention, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

Drawings

Fig. 1 is a schematic perspective view of an assembled structure of an embodiment of the present invention (in a state where an optical module body is inserted into a metal cage for use);

FIG. 2 is a schematic cross-sectional view of a first embodiment of the present invention (showing an optical module body inserted into a metal cage);

FIG. 3 is an enlarged schematic view at A in FIG. 2;

FIG. 4 is an enlarged schematic view at B of FIG. 2;

FIG. 5 is a partial schematic view of the structure of FIG. 1 (first and second spacing housings not shown);

FIG. 6 is a schematic view of a first exploded structure of the embodiment of the present invention (the first and second limiting housings are not shown);

FIG. 7 is a second exploded view of the embodiment of the present invention (without the metal cage, the first retaining housing and the second retaining housing);

FIG. 8 is a schematic cross-sectional view of a first embodiment of the present invention (showing an optical module body inserted into a metal cage);

FIG. 9 is an enlarged schematic view at C of FIG. 8;

FIG. 10 is an enlarged schematic view at D of FIG. 8;

FIG. 11 is a schematic view of a pull ring structure according to an embodiment of the present invention;

FIG. 12 is a schematic view of another angle tab configuration according to an embodiment of the present invention;

FIG. 13 is a schematic view of a cover plate structure according to an embodiment of the present invention;

FIG. 14 is a schematic view of another angle cover plate according to an embodiment of the present invention.

The reference numbers illustrate:

10. optical module body 101 and mounting cavity

11. Base 111, first rear side installation piece

112. Second rear mounting block 113, rotating shaft

114. Vertical groove 115 and horizontal groove

12. Circuit board

13. Plug connector 131, elastic contact terminal

14. First limiting shell 15 and second limiting shell

20. Cover plate

21. First rotating arm 211 lock head projection

22. Second rotating arm 221, force-bearing inclined plane

222. Extension block 223 and guide shaft portion

23. Pivoting part

30. Pull ring

31. Cross arm 311 and boss

312. Unlocking contact surface 313 and locking contact surface

314. Left side mounting ear 315, right side mounting ear

316. Arc transition surface 317, pin joint hole

318. Abdicating groove

32. Cantilever 321, through hole

33. Hand-held part 331, recess

341. A first groove surface 342 and a second groove surface

343. Lead-in chamfer 344, transition chamfer

40. A metal cage 41 and a spring plate locking groove.

Detailed Description

The invention is further described with reference to the following detailed description and accompanying drawings.

As shown in fig. 1 to 14, an optical module convenient to unlock includes an optical module body 10 and a pull ring 30 mechanism for releasing or locking a connection between the optical module body 10 and a metal cage 40, where the pull ring 30 mechanism includes a cover plate 20 and a pull ring 30 disposed on the optical module body 10;

the cover plate 20 is provided with a pivoting part 23 for pivoting the optical module body 10, and a first rotating arm 21 and a second rotating arm 22 which are respectively positioned at the front side and the rear side of the pivoting part 23, and the first rotating arm 21 is provided with a lock head protrusion 211 which is used for being matched with an elastic sheet locking groove 41 on the metal cage 40;

the pull ring 30 is pivotally connected to the optical module body 10, the pull ring 30 is provided with an unlocking contact surface 312 and an locking contact surface 313, and the second rotating arm 22 can selectively abut against the unlocking contact surface 312 or the locking contact surface 313;

when the optical module body 10 is inserted into the metal cage 40, and the optical module body 10 needs to be pulled out from the metal cage 40, after the pull ring 30 is rotated, the unlocking contact surface 312 abuts against the second rotating arm 22 to separate the locking protrusion 211 from the spring locking groove 41 of the metal cage 40;

when the optical module body 10 is required to be inserted into the metal cage 40 for use, after the optical module body 10 is inserted into the metal cage 40 and the pull ring 30 is rotated in the opposite direction, the upper locking contact surface 313 abuts against the second rotating arm 22 so that the locking protrusion 211 is locked with the elastic piece locking groove 41 of the metal cage 40.

In the present embodiment, the tab 30 includes a crossbar 31 extending in the left-right direction, the crossbar 31 being pivotally connected to the optical module body 10, and a cantilever 32 integrally connected to the crossbar 31, and the unlocking contact surface 312 and the locking contact surface 313 are both provided on the crossbar 31. In the present embodiment, the two cantilevers 32 are provided and extend integrally and backwardly from the left end and the right end of the crossbar 31, respectively. Preferably, the inner side of the cantilever 32 is provided with a handheld portion 33 protruding inwards, and the handheld portion 33 is provided with a groove 331 for finger to grab.

In this embodiment, the cross arm 31 is provided with a protruding portion 311, and a left mounting ear 314 and a right mounting ear 315 respectively located at the left and right sides of the protruding portion 311, the protruding portion 311 and the suspension arm 32 are respectively located at opposite sides of the cross arm 31, and the left mounting ear 314, the right mounting ear 315 and the protruding portion 311 are all located at the same side of the cross arm 31; the unlocking contact surface 312 and the locking contact surface 313 are both disposed on the protrusion 311, and a step is formed between the unlocking contact surface 312 and the locking contact surface 313. The protrusion 311 is further provided with an arc-shaped transition surface 316, and the arc-shaped transition surface 316 is located between the unlocking contact surface 312 and the locking contact surface 313. Pivot hole 317 has all been seted up on left side installation ear 314 and the right side installation ear 315, left side installation ear 314 and right side installation ear 315 realize the pin joint through corresponding pivot hole 317 and optical module body 10 respectively.

The lower end surface of the second rotating arm 22 is provided with a force-receiving inclined surface 221 inclined upwards from front to back, and the force-receiving inclined surface 221 can selectively abut against the unlocking contact surface 312 or the locking contact surface 313. In this embodiment, the unlocking contact surface 312 and the locking contact surface 313 are both inclined surfaces, and the length of the unlocking contact surface 312 in the front-rear direction when abutting against the force receiving inclined surface 221 is smaller than the length of the locking contact surface 313 in the front-rear direction when abutting against the force receiving inclined surface 221.

In this embodiment, the force-receiving inclined surface 221 is provided with an extension block 222 protruding downward, the inner side surface of the extension block 222 is provided with a guide shaft portion 223 protruding inward, correspondingly, the protrusion 311 is provided with a guide groove penetrating into the cross arm 31, and the unlocking contact surface 312, the locking contact surface 313 and the arc-shaped transition surface 316 and the guide groove are located on opposite sides of the protrusion.

The guide shaft portion 223 is fitted in the guide groove. The cross arm 31 is provided with a yielding groove 318 corresponding to the extending block 222, and the yielding groove 318 is communicated with the guide groove; in this embodiment, the guide groove includes a guiding inclined plane 343, a first groove surface 341, a transition inclined plane 344, and a second groove surface 342, which are sequentially connected from inside to outside, where the first groove surface 341 is a convex arc surface, the second groove surface 342 is an inner arc surface, and a radius of a circle where an axial cross section of the first groove surface 341 is located is greater than a radius of a circle where an axial cross section of the second groove surface 342 is located. The upper locking contact surface 313 is provided with an opening, and the opening is communicated with the guide groove. Preferably, a rotation space for the step rotation is formed between the guide shaft portion 223 and the force receiving inclined surface 221.

The rear end of the optical module body 10 is provided with a plug connector 13, the plug connector 13 extends out of the optical module body 10, the left side and the right side of the plug connector 13 are both provided with elastic contact ends 131, the cantilever 32 is provided with a through hole 321 running through the inner side and the outer side of the cantilever, the elastic contact ends 131 are adapted in the through hole 321 and extend out of the cantilever 32, at this time, the pull ring 30 is connected with the plug connector 13, and the cantilever 32 receives and covers the structure of the plug connector 13 extending out of the optical module body 10, so that the structure of the plug connector 13 extending out of the optical module body 10 can be protected, the structure is compact, the normal use of the optical module is not affected, and the plug connector 13 is not easy to see in appearance.

The optical module body 10 includes a base 11, a circuit board 12, and a first limiting shell 14 and a second limiting shell 15 sleeved on the periphery of the rear section of the base, the first limiting shell 14 is located at the front side of the second limiting shell 15, the cover plate 20 is installed in the first limiting shell 14 and the second limiting shell 15, the lock head protrusion extends outside the first limiting shell, and when the optical module body is locked in the metal cage 40, the pull ring 30 is located in the second limiting shell 15. The base 11 has a front-rear through mounting cavity 101, the circuit board 12 is mounted in the mounting cavity 101, and the plug connector 13 is electrically connected to the circuit board 12. The pull ring 30 is pivotally connected to the rear end of the base 11. The plug connector 13 is installed in the mounting cavity 101 and extends out of the rear end of the mounting cavity 101.

Preferably, a first rear mounting block 111 and a second rear mounting block 112 are respectively extended from the rear end of the base 11 in a left-right spacing arrangement, and a rotating shaft 113 is respectively disposed on the outer side of the first rear mounting block 111 and the inner side of the second rear mounting block 112. The left mounting ear 314 is pivotally connected to the rotating shaft 113 of the first rear mounting block 111 through the pivot hole 317, the right mounting ear 315 is pivotally connected to the rotating shaft 113 of the second rear mounting block 112 through the pivot hole 317, and the two pivot holes 317 and the two rotating shafts 113 are located on the same axis.

The mounting cavity 101 has an upper opening penetrating through the rear end of the base 11, the pivoting portion 23 of the cover plate 20 is pivoted to the upper opening of the mounting cavity 101, and the cover plate 20 covers the upper opening of the mounting cavity 101. In this embodiment, the upper end surface of the base 11 is provided with a pivot groove recessed downward on the left side and/or the right side of the upper end opening, the pivot groove has a vertical groove 114 extending along the up-down direction and a horizontal groove 115 extending along the front-back direction, the rear end of the horizontal groove 115 communicates with the vertical groove 114, the pivot portion 23 of the cover plate 20 is fitted into the horizontal groove 115 from the vertical groove 114, and the pivot portion 23 is located at the front end of the horizontal groove 115.

The working principle of releasing or locking the connection between the light module body 10 and the metal cage 40 is generally described below (by default, in the case where the light module body 10 is already inserted into the metal cage 40 for use, the pull ring 30 is vertically arranged):

when the connection between the optical module body 10 and the metal cage 40 needs to be released, the groove 331 of the handheld portion 33 can be grasped by fingers, the pull ring 30 is pulled upwards, so that the pull ring 30 rotates around the rotating shaft 113, in the rotating process of the pull ring 30, the unlocking contact surface 312 is abutted and applies force to the stress inclined surface 221, the second rotating arm 22 rotates upwards, due to the lever effect, the first rotating arm 21 rotates downwards to drive the lock protrusion 211 to move downwards, when the lock protrusion 211 is completely separated from the elastic sheet locking groove 41 of the metal cage 40, the optical module body 10 can be pulled backwards, and meanwhile, the pull ring 30 rotates to the horizontal position;

next, when the optical module body 10 is required to be inserted into the metal cage 40 for use, after the optical module body 10 is inserted into the metal cage 40 and the pull ring 30 is rotated in the opposite direction, the locking contact surface 313 abuts against the second rotating arm 22 so that the locking protrusion 211 is locked with the spring locking groove 41 of the metal cage 40, and at the same time, the pull ring 30 is rotated to the vertical position.

The design key points of the invention are as follows: the optical module locking and unlocking device has the advantages that the unlocking and locking between the optical module body and the metal cage can be realized mainly through the pull ring mechanism, the use is convenient, the structure is compact, an elastic structure in the traditional technology is omitted, and the stability and the reliability of a product in the use process are improved;

secondly, the locking efficiency and stability are improved through the matching of the guide shaft part and the guide groove;

moreover, through the matching of the elastic contact end of the plug connector and the through hole on the pull ring, the pull ring can be ensured to be accommodated in the plug connector after being locked, so that the space is saved, the appearance of the product is more attractive, the practicability of the product is improved, and particularly, the pull ring and the plug connector can be conveniently separated by arranging the groove on the pull ring;

and the whole structure is ingenious and reasonable in design, all parts are convenient and firm to assemble, and the stability and reliability of the product in the using process are further ensured.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.