CN111239939A - Pull ring, unlocking mechanism and optical communication module - Google Patents

Abstract

The invention relates to a pull ring, an unlocking mechanism and an optical communication module, wherein the unlocking mechanism comprises a base, an upper cover and the pull ring, the pull ring comprises a handle, a constraint part and an unlocking part, sliding chutes for the unlocking part to slide are arranged on two sides of the base, and the unlocking part is provided with a first bulge for unlocking; the restriction part is provided with a second bulge used for limiting the unlocking distance, and the base is provided with a limit groove matched with the second bulge; clamping grooves are formed in two sides of the base, limiting parts matched with the clamping grooves are arranged on the limiting parts, and the optical secondary module and the electronic secondary module are packaged between the base and the upper cover; the unlocking mechanism is compact in structure and easy to assemble and disassemble, can be assembled after internal parts of the optical module are assembled and the upper cover is assembled, can be used for replacing pull rings with different shapes, colors or metal plates under the condition that the upper cover is not opened, and can be widely applied to packaging of optical modules of QSFP +, QSFPDD, OSFP and CFP series.

Description

Pull ring, unlocking mechanism and optical communication module

Technical Field

The invention relates to the technical field of optical communication, in particular to a pull ring, an unlocking mechanism and an optical communication module.

Background

In the conventional optical communication system, an unlocking mechanism (or a latching mechanism) is usually provided to unlock and trip, so that the optical communication module can be smoothly released from the system motherboard.

At present, due to the fact that products carried by QSFP + packages are diversified and customer requirements are different, unlocking pull rings with various colors, shapes or different customer marks are needed for the same QSFP + packages to be matched with the QSFP + packages. However, in the prior art, most of the unlocking mechanisms of the modules such as QSFP + and QSFPDD require that an unlocking pull ring is installed in a module base, and then an upper cover of a product is installed; if a product modification (such as product degradation and replacement of the pull tab) occurs, or the pull tab with different color or different shape is required to be replaced according to different customers (such as standard part is changed into customized part), the upper cover of the product needs to be opened and then replaced. By adopting the mode, a large amount of time can be spent on disassembling the module, and the condition inside the product can be changed in the process of disassembling and assembling the upper cover, so that the module is required to be readjusted and retested after the pull ring is replaced, time is wasted, and cost is greatly increased.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides an unlocking mechanism which is simple in structure and easy to assemble and disassemble, wherein the pull ring for unlocking can be assembled after the optical module completes the assembly of internal parts and the assembly of an upper cover, and the pull rings with different shapes, colors or metal plates can be replaced under the condition of not opening the upper cover, so that the problems of inconvenience in replacing the pull ring, high cost and the like in the prior art are effectively solved.

The technical scheme adopted by the invention is as follows:

the utility model provides a pull ring, includes handle, restriction portion and sets up respectively in the unblock portion of restriction portion both sides, the handle with restriction portion links to each other, and handle and unblock portion are located the both ends of restriction portion respectively, unblock portion is provided with the first arch that is used for the unblock respectively, restriction portion is provided with the second arch that is used for restricting unblock portion sliding distance, restriction portion and/or unblock portion is provided with the spacing portion that is used for restriction portion location and/or direction. When the pull ring is used, the pull ring is arranged on the base in the unlocking structure, the second bulge is matched with the limiting groove on the base in the unlocking mechanism, the unlocking part is arranged in the sliding groove of the base, so that the first bulge is just positioned on one side of the lock tongue, and the limiting part is used for keeping the limiting part to have a determined position on the base, so that the whole pull ring can be kept to have a relatively determined position on the base, and the pull ring can be conveniently assembled to the same position during assembly; when unlocking, the handle is pulled manually to move, so that the unlocking parts on the two sides of the constraint part are driven to move synchronously along the sliding groove, the first bulge extrudes the spring bolt, and the spring bolt is popped out, so that the purpose of unlocking is achieved; when the unblock was accomplished, first protruding card just in time was in the edge of spacing groove, prevented that the unblock portion from continuing to remove to reach spacing purpose.

Preferably, the unlocking part comprises a long-strip-shaped unlocking sheet, and the first protrusion is arranged on the outer side of the unlocking sheet. So that the lock tongues on the two sides are matched to achieve the purpose of synchronously unlocking the two sides.

Further, the unlocking sheet comprises at least one bending part, and the bending part is used for bending the unlocking sheet inwards. Not only is beneficial to contacting with the inner side wall of the sliding groove, but also is beneficial to improving the electromagnetic shielding effect.

Preferably, the unlocking sheet comprises a first section and a second section, the first section and the second section are connected through the bending part, the first section and the second section are parallel to each other, the first section is connected with the restraining part, and the first bulge is arranged on the outer side of the second section.

In one scheme, the constraint part comprises a substrate, the handle is respectively connected with two sides of the substrate, the two unlocking parts are respectively fixed on two sides of the handle, the second protrusion is arranged on the substrate, and the limiting parts are respectively fixed on the unlocking parts. In this scheme, the handle of base plate and both sides can constitute the U-shaped structure to the three side of parcel base, and another side of base can be blocked to spacing portion, through the cooperation of base plate, handle and spacing portion, both can be fixed in the correct position department of base with this pull ring, can guarantee this pull ring again at the in-process of slip unblock along linear motion.

Preferably, the limiting part is of an L-shaped structure. So as to clamp the lower surface of the base, and play a role in positioning during the assembling process, and play a role in guiding during the sliding unlocking process.

Preferably, the limiting part comprises a vertically arranged flat plate, and the lower end of the flat plate is bent inwards. Thereby forming the L-shaped structure so as to clamp the clamping groove of the base.

In another scheme, the restriction part comprises a substrate, a first side plate and a second side plate, the first side plate and the second side plate are arranged on two sides of the substrate, the second protrusion is arranged on the substrate, the two unlocking parts are respectively connected with the first side plate and the second side plate, one end of the handle is respectively connected with the first side plate and the second side plate, and the limiting part is arranged on the first side plate and the second side plate and/or arranged on the unlocking parts. In this scheme, base plate, first curb plate and second curb plate can wrap up the three side of base respectively to through the cooperation with spacing portion, can contact and constitute certain restraint with four sides of base respectively, make and the length direction removal that can only follow the base with restraint portion, so that realize the direction and the location to the pull ring.

Preferably, the first side plate and the second side plate are perpendicular to the base plate respectively, and the limiting part comprises limiting plates which are arranged on the inner sides of the first side plate and the second side plate respectively and are parallel to the base plate respectively; or the limiting part is a limiting plate formed by inwards bending one ends of the first side plate and the second side plate, which are far away from the base plate. Not only can realize location, direction and restraint function, the manufacturing and the shaping of spacing portion of being more convenient for moreover is favorable to reduce cost.

Preferably, the width of the first side plate and the width of the second side plate are smaller than or equal to the width of the base plate. Is beneficial to more compact and small structure.

Preferably, the base plate, the first side plate, the second side plate and the limiting part are integrally formed components; or the base plate, the first side plate, the second side plate, the limiting part and the unlocking part are integrally formed components. So that rapid manufacturing is performed by integral molding.

Furthermore, the base plate is further provided with a limiting hole, the second protrusion is arranged in the limiting hole, one end of the second protrusion is connected with the base plate, the other end of the second protrusion is bent and/or extended towards the inside of the restraining part, and the second protrusion is a limiting piece of a sheet structure. So that when the unblock, can reach spacing purpose in the edge that supports the spacing groove, and when needs were dismantled, the instrument that utilizes that can be convenient made spacing piece warp, like the perk etc. makes spacing piece can break away from the spacing groove to this pull ring of smooth dismantlement.

Furthermore, the device also comprises a third bulge for resetting, wherein the third bulge is arranged on the substrate and extends towards the interior of the constraint part. The third protrusion is used for being matched with a return spring arranged on the base, so that after unlocking is completed, the pull ring can be automatically reset, and next unlocking is facilitated.

Furthermore, the substrate is also provided with a reset hole and a mounting hole, the third bulge is arranged in the reset hole, one end of the third bulge is connected with the substrate, and the other end of the third bulge is bent towards the inside of the constraint part and is perpendicular to the substrate; the mounting hole is located at one end of the reset hole and used for passing through the reset spring. The reset hole and the mounting hole are matched and used, so that the third protrusion is convenient to form, and the reset spring is convenient to mount and dismount.

Preferably, the handle is made of plastics, metal or sheet metal. Can be customized according to actual requirements.

Preferably, the handle comprises a pulling plate and connecting plates respectively arranged on two sides of the same end of the pulling plate, and the two connecting plates are parallel to each other and respectively connected with two sides of the restraining part. Compact structure, the shaping of being convenient for, and in the in-service use process, be convenient for pull and realize the unblock.

Preferably, the restraining part, the unlocking part and the limiting part are integrally formed components and are made of metal or sheet metal. Is convenient for molding.

Furthermore, one end of the base plate transversely extends to form an extending plate, the extending plate is used for pressing an upper cover of the unlocking mechanism, and the reset hole and the mounting hole are arranged on the base plate and/or the extending plate. The restriction part, the upper cover and the base are assembled into a whole.

The utility model provides an unlocking mechanism, including base, upper cover and the pull ring, the base is provided with the cavity that is used for installing optics submodule and electron submodule, the upper cover set up in the upper portion of base, and be used for sealing the cavity, the both sides of base and/or upper cover are provided with respectively and supply the gliding spout of unblock portion, about the portion sets up in the one end of base, base and/or upper cover be provided with the spacing groove of the protruding looks adaptation of second, just the both sides of base be provided with respectively with the draw-in groove of spacing looks adaptation. In the scheme, the sliding grooves are respectively arranged on the two sides of the base, the unlocking part is arranged in the sliding grooves, and the clamping grooves are arranged, so that the limiting part can be clamped at the clamping grooves, the whole constraint part can surround the three side surfaces of the base, and the accurate positioning and installation of the constraint part are realized; when unlocking is carried out, the handle is pulled to enable the unlocking part to move along the sliding groove, so that the first bulge is driven to move to the unlocking part, and the unlocking function is realized; after the unlocking is finished, the second bulge is just restricted by the limiting groove, so that the whole pull ring is limited to move continuously, and the purpose of limiting is achieved; and when need to change the pull ring, only need adopt special instrument to make the second arch break away from the spacing groove, can be with this pull ring convenience, quick pull out from release mechanism, thereby accomplish the dismantlement work, when assembling new pull ring, only need aim at the spout of both sides with the unblock part of both sides respectively, then inwards promote the pull ring, make the about part cover on the base, and make the second arch remove the right side of spacing groove from the left side of spacing groove, can be convenient, the assembly work of pull ring is accomplished to the efficient, in whole in-process, need not to dismantle the upper cover, namely, can accomplish the pull ring of inner part assembly and assembly upper cover back repacking at the optical module, and can be under the condition of not opening the upper cover, change different shapes, the pull ring of different colours or panel beating, thereby effectively solve the not convenient to change that exists among the current, problem such as high cost.

Preferably, both sides of one end of the base are respectively provided with a groove for the restriction part and the limiting part to slide, and the sliding groove is communicated with the groove. So that the restriction part and the unlocking part can move along the groove and the sliding groove respectively when unlocking and disassembling.

Furthermore, a section of constraint hole with a closed side surface is formed in the end of the sliding groove and used for constraining the end of the unlocking part. The end part of the unlocking part can be restrained, the unlocking part is prevented from moving transversely in the sliding process, such as transversely disengaging from the sliding groove, and the guide can be provided for the sliding of the unlocking part.

Further, the base is further provided with a spring groove used for installing a return spring and a communicating groove used for passing through the third protrusion, one end of the communicating groove is connected with the spring groove, and the other end of the communicating groove penetrates through the end portion of the base.

Furthermore, the upper surface of the upper cover is also provided with a notch matched with the base plate and/or the extension plate. Through setting up the notch, both can cooperate with base plate and/or extension board, utilize two lateral walls of notch to be the sliding guide of restraint portion, can provide the restraint for the apron again for whole unlocking structure's structure is compacter, the assembly is better.

An optical communication module includes the unlocking mechanism.

Compared with the prior art, the pull ring, the unlocking mechanism and the optical communication module provided by the invention have the following beneficial effects:

1. the unlocking mechanism is simple in structure and easy to assemble and disassemble, and is used for unlocking the pull ring, so that the optical module can be assembled after the internal parts are assembled and the upper cover is assembled, and the pull rings of different shapes, different colors or metal plates can be replaced under the condition that the upper cover is not opened, so that the problems that the pull ring is not convenient to replace, the cost is high and the like existing in the prior art are effectively solved.

2. The unlocking mechanism has various implementation modes on the basis of not changing the unlocking principle, and is beneficial to more diversification and enrichment of products of the unlocking mechanism.

3. The unlocking mechanism has good universality and wide application range, and can be widely applied to the packaging of QSFP +, QSFPDD, OSFP and CFP series optical modules.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a partial structural schematic view of a tab according to embodiment 1 of the present invention.

Fig. 2 is a partial structural schematic view of another tab provided in embodiment 1 of the present invention.

Fig. 3 is a schematic structural diagram of a tab according to embodiment 1 of the present invention.

Fig. 4 is a second schematic structural diagram of a tab according to embodiment 1 of the present invention.

Fig. 5 is a schematic structural diagram of an unlocking mechanism provided in embodiment 2 of the present invention after an upper cover and a base are engaged with each other.

Fig. 6 is a schematic structural view of an unlocking mechanism provided in embodiment 2 of the present invention, when a tab is assembled.

Fig. 7 is a schematic structural diagram of an unlocking mechanism provided in embodiment 2 of the present invention.

Fig. 8 is a second schematic structural diagram of an unlocking mechanism provided in embodiment 2 of the present invention.

Fig. 9 is a schematic structural diagram of a tab according to embodiment 3 of the present invention.

Fig. 10 is a second schematic structural view of a tab according to embodiment 3 of the present invention.

Fig. 11 is a partial structural schematic view of an unlocking mechanism provided in embodiment 4 of the present invention.

Fig. 12 is a partial structural schematic view of a base in the unlocking mechanism provided in embodiment 4 of the present invention.

Description of the drawings

A handle 100, a pulling plate 101, a connecting plate 102,

A restraining part 200, a base plate 201, a limiting hole 202, a second protrusion 203, a reset hole 204, a third protrusion 205, a mounting hole 206, an extension plate 207, a first side plate 208, a second side plate 209,

An unlocking part 300, an unlocking sheet 301, a first bulge 302, a first section 303, a second section 304, a bent part 305,

A limiting part 400, a limiting plate 401,

A base 500, a sliding groove 501, a limit groove 502, a clamping groove 503, a groove 504, a restriction hole 505, a spring groove 506, a communication groove 507,

An upper cover 600, a notch 601,

An optical subassembly 701, and an electronic subassembly 702.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1 to 4, the present embodiment provides a pull ring, including a pull handle 100, a restriction portion 200, and unlocking portions 300 respectively disposed at two sides of the restriction portion 200, where the pull handle 100 is connected to the restriction portion 200, the pull handle 100 and the unlocking portions 300 are respectively disposed at two ends of the restriction portion 200, the unlocking portions 300 are respectively provided with first protrusions 302 for unlocking, the restriction portion 200 is provided with a second protrusion 203 for limiting a sliding distance of the unlocking portion 300, and the restriction portion 200 and/or the unlocking portion 300 is provided with a limiting portion 400 for positioning and/or guiding the restriction portion 200. When in use, the pull ring is arranged on the base 500 in the unlocking structure, wherein the second protrusion 203 is matched with the limiting groove 502 on the base 500 in the unlocking structure, the unlocking part 300 is arranged in the sliding groove 501 of the base 500, so that the first protrusion 302 is just positioned at one side of the lock tongue, and the limiting part 400 is used for keeping the restraining part 200 at a determined position on the base 500, so that the whole pull ring can be kept at a relatively determined position on the base 500, and the pull ring can be conveniently assembled at the same position and buckled on the base 500 along the circumferential direction when being assembled; during unlocking, the handle 100 is pulled manually to move, so that the unlocking parts 300 on the two sides of the constraint part 200 are driven to synchronously move along the sliding groove 501, the first protrusion 302 extrudes the lock tongue, and the lock tongue is driven to pop out, so that the purpose of unlocking is achieved; when the unlocking is completed, the first protrusion 302 is just clamped at the edge of the limiting groove 502, so that the unlocking part 300 is prevented from continuously moving, and the purpose of limiting is achieved.

For making the structure more compact, and be convenient for change, as preferred, the unlocking portion 300 includes the unblock piece 301 of rectangular shape, first arch 302 sets up in the outside of unblock piece 301, as shown in fig. 3 and 4 to the bolt looks adaptation of both sides reaches the purpose of the synchronous unblock in both sides.

In a further aspect, the unlocking sheet 301 includes at least one bending portion 305, and the bending portion 305 is used for bending the unlocking sheet 301 inwards; not only is beneficial to contacting with the inner side wall of the sliding groove 501 and closely attached together, but also is beneficial to improving the electromagnetic shielding effect. The number of the bent portions 305 may be determined according to actual requirements, for example, as shown in fig. 2 to 4, the unlocking sheet 301 includes a first section 303 and a second section 304, the first section 303 and the second section 304 are connected through the bent portions 305, the first section 303 and the second section 304 are parallel to each other, the first section 303 is connected to the constraining portion 200, and the first protrusion 302 is disposed on the outer side of the second section 304; as shown in fig. 2-4, the direction of the unlocking sheet 301 is changed by providing the bending portion 305, so that the second segment 304 can press the side wall of the sliding slot 501, and meanwhile, the second protrusion 203 can smoothly pass through the sliding slot 501 in the process of replacing the tab.

As shown in fig. 3 and 4, in a preferred embodiment of the present invention, the constraining unit 200 includes a substrate 201, the pull tabs 100 are respectively connected to two sides of the substrate 201, and the two unlocking units 300 are respectively fixed to two sides of the pull tabs 100, as shown in fig. 3 and 4, the second protrusions 203 are disposed on the substrate 201, and the limiting units 400 are respectively fixed to the unlocking units 300. In this scheme, base plate 201 and the handle 100 of both sides can constitute the U-shaped structure to can wrap up the three side of base 500, and spacing portion 400 can block another side of base 500, through the cooperation of base plate 201, handle 100 and spacing portion 400, both can be fixed in the correct position department of base 500 with this pull ring, can guarantee this pull ring again at the in-process of slip unblock along linear motion.

In a preferred embodiment, the position-limiting portion 400 has an L-shaped structure. So as to clamp the lower surface of the base 500, and play a role in positioning during the assembling process, and play a role in guiding during the sliding unlocking process; as shown in fig. 3 and 4, preferably, the limiting portion 400 includes a flat plate vertically disposed, a lower end of the flat plate is bent inward, and an upper end of the flat plate is vertically connected to the unlocking piece 301. Preferably, the unlocking portion 300 and the corresponding limiting portion 400 may be integrally formed members and made of metal or sheet metal.

As shown in fig. 3 and 4, in this embodiment, the substrate 201 is further provided with a limiting hole 202, the second protrusion 203 is disposed in the limiting hole 202, and one end of the second protrusion 203 is connected to the substrate 201, and the other end is bent and/or extended toward the interior of the constraining portion 200. It can be understood that in this embodiment, the second protrusion 203 can be a limiting piece formed in the process of processing the limiting hole 202, the limiting piece is of a sheet structure, so that when unlocking is performed, the limiting piece can be supported against the edge of the limiting groove 502 to achieve the limiting purpose, and when disassembly is needed, the limiting piece can be conveniently deformed by using a tool, such as tilting, so that the limiting piece can be separated from the limiting groove 502, and the pull ring can be disassembled smoothly.

It can be understood that the number of the limiting holes 202 and the second protrusions 203 may be one, two or more according to actual requirements, for example, as shown in fig. 3 and 4, in this embodiment, the substrate 201 is respectively provided with one limiting hole 202 and one second protrusion 203, and correspondingly, the base 500 is respectively provided with one limiting groove 502 to match with the limiting hole 202 and the second protrusion 203.

As shown in fig. 3 and 4, in a further embodiment, the device further includes a third protrusion 205 for resetting, and the third protrusion 205 is disposed on the substrate 201 and extends into the constraining section 200. The third protrusion 205 is used to cooperate with a return spring installed on the base 500, so that after the unlocking is completed, the pull ring can automatically return to facilitate the next unlocking.

In a further scheme, the substrate 201 is further provided with a reset hole 204, the third protrusion 205 is disposed in the reset hole 204, one end of the third protrusion 205 is connected to the substrate 201, and the other end of the third protrusion is bent toward the inside of the constraint portion 200 and perpendicular to the substrate 201; not only is the third protrusion 205 convenient to form, but also the return spring is convenient to arrange; it is understood that the third protrusion 205 may be formed during the process of machining the reset hole 204, and the third protrusion 205 with a rod-shaped structure is formed by bending, as shown in fig. 3 and 4.

In order to facilitate the installation of the return spring, in a further aspect, the electronic device further includes an installation hole 206, the installation hole 206 is disposed on the substrate 201 and located at one end of the return hole 204, and is used for passing through the return spring; so that the return spring can be conveniently installed and removed. As shown in fig. 3 and 4, in the present embodiment, the reset holes 204 and the mounting holes 206 are provided in pairs, and the number of the reset holes 204 and the number of the mounting holes 206 may be determined according to actual requirements, and may be a pair, two teams or multiple pairs, for example, in the present embodiment, two pairs of the reset holes 204 and the mounting holes 206 are included, as shown in fig. 3 and 4, and the two pairs of the reset holes 204 and the mounting holes 206 are respectively symmetrically provided at two sides of the limiting hole 202, which is beneficial to more uniform stress of the whole pull ring after the installation of the reset spring.

In a further embodiment, one end of the base plate 201 (the end facing the unlocking portion 300) extends laterally (i.e. along the length direction of the unlocking sheet 301) and forms an extending plate 207, the extending plate 207 is used for pressing the upper cover 600 of the unlocking mechanism, and the reset hole 204 and the mounting hole 206 are disposed on the base plate 201 and/or the extending plate 207. The restriction part 200, the upper cover 600 and the base 500 are advantageously assembled into a whole.

Preferably, in the present embodiment, the handle 100 may be made of plastic, metal or sheet metal. For example, as shown in fig. 3 and 4, in the present embodiment, the handle 100 is made of plastic.

Preferably, in this embodiment, the handle 100 includes a pulling plate 101 and two connecting plates 102 respectively disposed at two sides of the same end of the pulling plate 101, as shown in fig. 3 and 4, the two connecting plates 102 are parallel to each other and are respectively connected to two sides of the constraining portion 200; the handle 100 is compact in structure, convenient to form and convenient to pull to unlock in the actual use process. It can be understood that when the handle 100 is made of plastic, in order to make the connection between the base plate 201 and the unlocking piece 301 and the handle 100 more secure, a part of the base plate 201 and a part of the unlocking piece 301 can be inserted into the connecting plate 102 to form a more secure connection.

It can be understood that, in the present embodiment, to simplify the structure of the entire tab, the two unlocking portions 300 are respectively symmetrically disposed on both sides of the constraining portion 200.

Example 2

The present embodiment provides an unlocking mechanism, which includes a base 500, an upper cover 600 and the pull ring described in embodiment 1, wherein the base 500 is provided with a cavity for mounting an optical sub-module 701 and an electronic sub-module 702, the upper cover 600 is disposed on the upper portion of the base 500 and is used for closing the cavity, and the optical sub-module 701 (a key component for implementing photoelectric conversion, generally including a Transmitter Optical Subassembly (TOSA), a Receiver Optical Subassembly (ROSA) or a receiver optical subassembly (BOSA)) and the electronic sub-module 702 (connected to the optical sub-module 701 and mainly used for signal processing, generally including a circuit board (PCBA)) required by an optical communication module are encapsulated in the cavity by the cooperation of the upper cover 600 and the base 500;

as shown in fig. 5-8, the two sides of the base 500 and/or the upper cover 600 are respectively provided with a sliding groove 501 for the unlocking part 300 to slide, it can be understood that, for the convenience of unlocking and disassembling, the sliding groove 501 is a linear sliding groove 501, the restriction part 200 is arranged at one end of the base 500 (arranged at the head end of the base 500, and the sliding groove 501 extends from the head end to the tail end of the base 500); it is understood that the depth of the slide groove 501 is greater than or equal to the height of the second protrusion 203 so that the unlocking portion 300 can be moved out of the base 500 through the slide groove 501 to remove or replace the tab without removing the upper cover 600.

As shown in fig. 5 to 8, the base 500 and/or the upper cover 600 are provided with a limiting groove 502 adapted to the second protrusion 203, and two sides of the base 500 are respectively provided with a clamping groove 503 adapted to the limiting portion 400. In this embodiment, the sliding grooves 501 are respectively arranged on two sides of the base 500, the unlocking part 300 is arranged in the sliding grooves 501, and the clamping groove 503 is arranged, so that the limiting part 400 can be clamped at the clamping groove 503, the whole restricting part 200 can surround three sides of the base 500, and the accurate positioning and installation of the restricting part 200 are realized; when unlocking, the handle 100 is pulled to move the unlocking part 300 along the sliding groove 501, so that the first protrusion 302 is driven to move to the unlocking part 300, and the unlocking function is realized; after unlocking is completed, the second protrusion 203 is just restricted by the limiting groove 502, so that the whole pull ring is limited to move continuously, and the purpose of limiting is achieved; when the pull ring needs to be replaced, the pull ring can be conveniently and quickly pulled out of the unlocking mechanism only by adopting an extra tool to separate the second protrusion 203 from the limiting groove 502, so that the disassembling work is completed, when a new pull ring is assembled, the unlocking parts 300 on two sides are only required to be respectively aligned to the sliding grooves 501 on two sides, then the pull ring is pushed inwards, the constraint part 200 is sleeved on the base 500, and the second protrusion 203 is enabled to move from the left side of the limiting groove 502 to the right side of the limiting groove 502, so that the assembling work of the pull ring can be conveniently and efficiently completed; in the whole process, the upper cover 600 does not need to be disassembled, that is, the pull ring can be assembled after the optical module finishes the assembly of the internal parts and the upper cover 600 is assembled, and the pull rings with different shapes, different colors or metal plates can be replaced under the condition that the upper cover 600 is not opened, so that the problems of inconvenience in replacement, high cost and the like existing in the prior art are effectively solved.

In order to be matched with the corresponding pull ring, preferably, two sides of one end of the base 500 are respectively provided with a groove 504 for the constraining portion 200 and the limiting portion 400 to slide, as shown in fig. 5, the sliding groove 501 is connected with the groove 504. So that the constraining part 200 and the unlocking part 300 can move along the groove 504 and the sliding groove 501, respectively, when unlocking and disassembling.

In a further embodiment, as shown in fig. 11, an end of the sliding slot 501 is provided with a closed-side restraining hole 505, and the restraining hole 505 is used for restraining an end of the unlocking portion 300. The end of the unlocking portion 300 can be restrained, so that the unlocking portion 300 is prevented from moving transversely in the sliding process, such as transversely disengaging from the sliding groove 501, and the guide can be provided for the sliding of the unlocking portion 300.

In a further aspect, the base 500 is further provided with a spring groove 506 for installing a return spring, and a communication groove 507 for passing through the third protrusion 205, as shown in fig. 5 and 6, one end of the communication groove 507 is connected to the spring groove 506, and the other end penetrates through the end of the base 500, so that when the tab is detached, the third protrusion 205 arranged on the restriction portion 200 slides out of the base 500 along the communication groove 507, thereby facilitating detachment and replacement of the tab; and the spring groove 506 is arranged, so that after the pull ring is installed, a return spring is arranged in the spring groove 506, one end of the return spring is connected with the third protrusion 205, the other end of the return spring is connected with the wall surface at one end of the spring groove 506, the whole pull ring can be pressed rightwards to the base 500 under the elastic action of the return spring, so that the pull handle 100 is pulled leftwards to realize unlocking when unlocking is performed, and after the unlocking is completed, the pull ring can be restored to the initial position under the elastic action of the return spring, so that the next unlocking is performed.

In a further aspect, as shown in fig. 5-7, the upper surface of the upper cover 600 is further provided with a notch 601 adapted to the base plate 201 and/or the extension plate 207. Through setting up notch 601, both can cooperate with base plate 201 and/or extension board 207, utilize two lateral walls of notch 601 to be the sliding guide of constraining part 200, can provide the restraint for the apron again for the structure of whole unblock structure is compacter, assembles better.

It is understood that the positions and the number of the limiting grooves 502 arranged on the base 500 should be matched with the positions and the number of the second protrusions 203 on the tab, and the positions and the number of the spring grooves 506 should be matched with the positions and the number of the mounting holes 206 on the tab, which are not illustrated herein.

Example 3

The main difference between the present embodiment 3 and the above embodiment 1 is that the present embodiment provides a constraining portion 200 with another structure, where the constraining portion 200 includes a base plate 201, and a first side plate 208 and a second side plate 209 disposed on two sides of the base plate 201, as shown in fig. 9 and 10, the second protrusion 203 is disposed on the base plate 201, the two unlocking portions 300 are respectively connected to the first side plate 208 and the second side plate 209, and one end of the handle 100 is respectively connected to the first side plate 208 and the second side plate 209, that is, the handle 100 and the unlocking portions 300 may be respectively connected to the first side plate 208 and the second side plate 209 and respectively located at two ends of the first side plate 208 and the second side plate 209; the limiting portion 400 is disposed on the first side plate 208 and the second side plate 209, and/or disposed on the unlocking portion 300. In this embodiment, the base plate 201, the first side plate 208 and the second side plate 209 may respectively wrap three sides of the base 500, and may respectively contact four sides of the base 500 and form a certain constraint through cooperation with the limiting portion 400, so that the limiting portion 200 and the base 500 can only move in the length direction, so as to guide and position the tab.

It is understood that the position-limiting portion 400 may be disposed on the unlocking portion 300, for example, the structure of the position-limiting portion 400 shown in embodiment 1 is omitted for brevity; the limiting portion 400 may also be disposed on the first side plate 208 and the second side plate 209, and preferably, as shown in fig. 9 and 10, the first side plate 208 and the second side plate 209 are perpendicular to the substrate 201 respectively; the limiting parts 400 can be respectively arranged at the inner sides of the first side plate 208 and the second side plate 209, and are respectively parallel to the limiting plates 401 of the substrate 201, so that the positioning and guiding functions are realized; the limiting portion 400 may also be a limiting plate 401 formed by bending inward one end of the first side plate 208 and the second side plate 209 away from the substrate 201, as shown in fig. 9 and 10, the limiting plate 401 corresponds to a slot 503 on the base 500; in this case, as a preferred embodiment, the base plate 201, the first side plate 208, the second side plate 209 and the limiting portion 400 may be integrally formed, so as to be integrally formed, thereby improving the production efficiency.

Preferably, the width of the first side plate 208 and the second side plate 209 is smaller than or equal to the width of the base plate 201, which is beneficial to the structure of the tab to be more compact, for example, as shown in fig. 9, the width of the base plate 201 is larger than the width of the first side plate 208 and the second side plate 209.

Preferably, in the present embodiment, the restricting portion 200, the unlocking portion 300, and the stopper portion 400 are integrally formed members and are made of metal or sheet metal.

As described in embodiment 1, the number of the limiting holes 202 and the second protrusions 203 may be one, two or more according to actual requirements, for example, as shown in fig. 9 and 10, in this embodiment, the substrate 201 is respectively provided with two limiting holes 202 and two second protrusions 203, and correspondingly, the base 500 is respectively provided with two limiting grooves 502 to match with the two limiting holes 202 and the second protrusions 203. The number of the reset holes 204 and the mounting holes 206 may be determined according to actual requirements, and may be one pair, two teams or multiple pairs, for example, in this embodiment, the pull ring includes a pair of the reset holes 204 and the mounting holes 206, as shown in fig. 9 and 10, and the pair of reset holes 204 and the mounting holes 206 are disposed between the two limiting holes 202, which is beneficial to more uniform stress of the whole pull ring after the reset spring is mounted.

Example 4

According to the pull ring recited in embodiment 4, the present embodiment provides an unlocking mechanism adapted to the same, which is different from the unlocking mechanism provided in embodiment 2 in that the number and position of the limiting grooves 502 are different, and the positions of the locking grooves 503 are slightly changed, as shown in fig. 11 and 12, in the present embodiment, the locking grooves 503 provided at both sides of the base 500 are respectively provided below the groove 504 to perform the positioning, guiding and restraining functions, while the upper surface of the head end of the base 500 is symmetrically provided with two limiting grooves 502, and a communication groove 507 and a spring groove 506 are provided between the two limiting grooves 502, as shown in fig. 11 and 12, so as to adapt to the pull ring provided in embodiment 3, not only the sliding unlocking function can be achieved, but also the pull ring can be replaced with different shapes, different colors or metal plates without opening the upper cover 600, thereby effectively solving the problems of inconvenient replacement, high cost and the like existing in the prior art.

Example 5

The present embodiment provides an optical communication module, including the unlocking mechanism described in embodiment 2 or embodiment 4, and the optical subassembly 701 and the electronic subassembly 702 related to the optical communication module are packaged in the cavity.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention.

Claims (22)

1. The pull ring is characterized by comprising a handle, a constraint part and unlocking parts arranged on two sides of the constraint part respectively, wherein the handle is connected with the constraint part, the handle and the unlocking parts are arranged at two ends of the constraint part respectively, the unlocking parts are provided with first protrusions for unlocking respectively, the constraint part is provided with a second protrusion for limiting the sliding distance of the unlocking part, and the constraint part and/or the unlocking parts are provided with limiting parts for positioning and/or guiding.

2. The tab of claim 1, wherein the unlocking portion comprises an elongated unlocking tab, and the first protrusion is disposed on an outer side of the unlocking tab.

3. The tab of claim 2, wherein the release tab includes at least one bend for bending the release tab inwardly.

4. The tab of claim 3, wherein the release tab comprises a first section and a second section, the first section and the second section are connected by the bending portion, the first section and the second section are parallel to each other, the first section is connected with the restraining portion, and the first protrusion is disposed outside the second section.

5. The pull ring of claim 1, wherein the restraining portion comprises a base plate, the pull tab is connected to two sides of the base plate, the two unlocking portions are fixed to two sides of the pull tab, the second protrusion is disposed on the base plate, and the limiting portions are fixed to the unlocking portions.

6. The tab of claim 5, wherein the retention portion is an L-shaped structure.

7. The pull ring of claim 6, wherein the limiting portion comprises a vertically disposed flat plate, a lower end of the flat plate is bent inward, and an upper end of the flat plate is fixed to the unlocking portion.

8. The pull ring of claim 1, wherein the restraining portion comprises a base plate and a first side plate and a second side plate disposed on two sides of the base plate, the second protrusion is disposed on the base plate, the two unlocking portions are respectively connected to the first side plate and the second side plate, one end of the pull handle is respectively connected to the first side plate and the second side plate, and the limiting portion is disposed on the first side plate and the second side plate and/or on the unlocking portion.

9. The tab of claim 8, wherein the first and second side panels are perpendicular to the base panel, and the limiting portion comprises a limiting plate disposed inside the first and second side panels, and parallel to the base panel;

or the limiting part is a limiting plate formed by inwards bending one ends of the first side plate and the second side plate, which are far away from the base plate.

10. The tab of claim 8, wherein the first and second side panels have a width that is less than or equal to the width of the base panel.

11. The tab of claim 8, wherein the base plate, the first side plate, the second side plate, and the retention portion are an integrally formed member; or the base plate, the first side plate, the second side plate, the limiting part and the unlocking part are integrally formed components.

12. The pull ring according to any one of claims 5 to 11, wherein the base plate is further provided with a limiting hole, the second protrusion is disposed in the limiting hole, one end of the second protrusion is connected to the base plate, the other end of the second protrusion is bent and/or extended toward the inside of the restraining portion, and the second protrusion is a limiting piece with a sheet structure.

13. The tab of claim 12, further comprising a third protrusion for repositioning, the third protrusion being disposed on the base and extending inwardly of the constraint.

14. The pull ring of claim 12, wherein the base plate is further provided with a reset hole and a mounting hole, the third protrusion is disposed in the reset hole, one end of the third protrusion is connected to the base plate, and the other end of the third protrusion is bent toward the inside of the constraint portion and perpendicular to the base plate; the mounting hole is located at one end of the reset hole and used for passing through the reset spring.

15. The tab of claim 14, wherein one end of the base plate extends laterally and forms an extension plate for pressing against an upper cover of the release mechanism, the reset hole and the mounting hole being provided in the base plate and/or the extension plate.

16. The tab of any of claims 1-11, wherein the tab is made of plastic, metal, or sheet metal;

and/or the restraining part, the unlocking part and the limiting part are integrally formed components and are made of metal or sheet metal.

17. The tab of claim 16, wherein the pull tab comprises a pull plate and two connecting plates disposed on opposite sides of the same end of the pull plate, the two connecting plates being parallel to each other and connected to opposite sides of the constraint portion.

18. An unlocking mechanism, comprising a base, an upper cover and the pull ring of any one of claims 1 to 17, wherein the base is provided with a cavity for mounting an optical sub-module and an electronic sub-module, the upper cover is arranged on the upper portion of the base and used for closing the cavity, sliding grooves for sliding the unlocking part are respectively arranged on two sides of the base and/or the upper cover, the restraining part is arranged at one end of the base, the base and/or the upper cover is provided with a limiting groove matched with the second protrusion, and clamping grooves matched with the limiting part are respectively arranged on two sides of the base.

19. The unlock mechanism of claim 18, wherein a groove for sliding the restriction portion is disposed on each of two sides of one end of the base, and the sliding slot is communicated with the groove.

20. The delatch mechanism of claim 18 wherein the end of the chute is provided with a closed-sided restraining aperture for restraining the end of the delatch portion.

21. The delatch mechanism of claim 18 wherein the upper surface of the upper cover is further provided with notches that mate with the base plate and/or extension plate.

22. An optical communication module comprising an unlocking mechanism according to any one of claims 18 to 21.

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