WO2021047001A1

WO2021047001A1 - Adapter and optical fiber connection assembly

Info

Publication number: WO2021047001A1
Application number: PCT/CN2019/116119
Authority: WO
Inventors: 黄美金; 孙莹; 邹峰
Original assignee: 烽火通信科技股份有限公司
Priority date: 2019-09-12
Filing date: 2019-11-07
Publication date: 2021-03-18
Also published as: CN110646896B; CN110646896A; MX2021011969A; BR112021019646A2; MY195964A; AR117897A1

Abstract

An adapter (1) and an optical fiber connection assembly, relating to the field of optical fiber communications. The adapter comprises: an adapter body (10), which comprises a connection portion (101), the connection portion (101) being provided with a connection channel (102) matching a connector and a receiving groove (103) in communication with the connection channel (102), and a fastener (17) being movably received in the receiving groove (103); an adapter sleeve (11) sleeved on the connection portion (101), the adapter sleeve (11) having a first state and a second state, when in the first state, the adapter sleeve (11) pressing against the fastener (17) so that a part of the fastener (17) extends into the connection channel (102) in such a manner that said part cannot return, and when the adapter sleeve (11) is in the second state, a relief space for the fastener (17) to exit the connection channel (102) being provided between the adapter sleeve (11) and the opening of the receiving groove (103); an inner pushing ring (12), sleeved on the connection portion (101) and located between the connection portion (101) and the adapter sleeve (11); and a driving device, comprising an adapter pull rope (13) and a first spring (14), the adapter pull rope (13) having one end connected to the adapter sleeve (11), and the first spring (14) having one end pressing against the inner pushing ring (12) and the other end pressing against the adapter sleeve (11). The invention is simple to operate during use, and can meet requirements for high-density arrangement.

Description

Adapter and optical fiber connection assembly

Technical field

The invention relates to the field of optical fiber communication, in particular to an adapter and an optical fiber connection assembly.

Background technique

In the fiber to the home (Fiber To The Home, FTTH) network in the home segment of the cable layout process, usually use fusion splicing technology, that is, the fiber end corresponding to each household is allocated in the fiber distribution box, and the fiber of each household The end and the home fiber optic cable are spliced in the fiber distribution box with an optical fiber fusion splicer, and then the home fiber optic cable is laid to each household. At the other end of the home fiber optic cable, an on-site fusion splicing is also required to facilitate the connection with each household. The user terminal boxes of the users are connected, and the use of the above-mentioned fusion splicing technology requires special optical fiber fusion splicing equipment, which requires high technical requirements for the operator, and the operation process is cumbersome and inconvenient.

With the large-scale deployment of FTTH, the application of pre-connected products that reduces construction costs, reduces construction technical requirements, and simplifies construction difficulty is becoming more and more widespread. However, most of the fiber optic connectors and adapters used at this stage are industry-standard connectors and adapters. The original design of this type of connector and adapter is to solve the fiber connection indoors or in a protective box (box). When opening a business, it is necessary to open the box, perform fusion splicing in the box, and fix the optical cable.

In order to avoid unpacking, fusion splicing, and fixing of optical cables when opening services, optical fiber connectors and adapters that have better waterproof performance and can be pre-installed outside the box are gradually being used. However, most of the waterproof optical fiber connectors and adapters on the market use screw-type locking methods, and the screw-type locking method requires a larger operating space due to its own characteristics, especially in density. In the case of higher requirements, the operation is very difficult.

Summary of the invention

In view of the defects in the prior art, the purpose of the present invention is to provide an adapter that is simple to operate and can meet the requirements of high-density arrangement.

In order to achieve the above objectives, the technical solution adopted by the present invention is:

An adapter, characterized in that it comprises:

The adapter body includes a butting portion with a cylindrical shape at one end, the butting portion is provided with a butting passage for matching with the connector, and the butting portion is also provided with a receiving groove communicating with the butting passage, the receiving A card holder is movably contained in the slot;

The adapter jacket is movably sleeved on the docking part. The adapter jacket has a first state and a second state. When in the first state, the adapter jacket abuts the clamping body and causes a part of the The clamping body can extend into the docking channel irreversibly, and when in the second state, a space for the clamping body to exit the docking channel is provided between the adapter jacket and the opening of the receiving slot;

An inner push ring, which is sleeved on the butting portion and located between the butting portion and the adapter jacket; and

A driving device comprising an adapter pull cord and a first spring, one end of the adapter pull cord is connected to the adapter jacket, one end of the first spring is held against the inner push ring, and the other end is held against the adaptor Coat.

On the basis of the above technical solution, the adapter cord is configured such that when the adapter cord is pulled, the adapter cord drives the adapter cover and the adapter body to slide relative to each other, so that the adapter cover is switched from the first state to the second state. Two states, and the first spring is released from the compressed state to provide the driving force for the relative sliding of the adapter jacket and the adapter body.

On the basis of the above technical solution, the end of the adapter cord connected to the adapter jacket is also symmetrically provided with two convex pockets, and the other end of the adapter cord is provided with a non-slip groove.

On the basis of the above technical solution, the adaptor further includes an adaptor cap, the adaptor cap includes a first insertion end that cooperates with the butting portion, and a first groove is provided on the first insertion end, when the When the first insertion end is inserted into the position, the adapter jacket is in the first state, and the part of the clamping body extending into the butting channel is located in the first groove.

On the basis of the above technical solution, the adaptor cap further includes an adaptor cap handle, the adaptor cap handle is provided with a tiger-mouth structure, and the tiger-mouth structure is provided with a rib that cooperates with the anti-slip groove.

On the basis of the above technical solution, the adapter jacket is provided with protruding strips protruding from the inner wall. When the adapter jacket is in the first state, the protruding strips are located at the receiving groove and resist the Card holder body.

On the basis of the above technical solution, the driving device further includes a second spring, one end of the second spring abuts against the inner push ring, and the other end abuts against the adapter body.

On the basis of the above technical solution, the retaining body is a steel ball, the receiving groove is a cylindrical hole, and the bottom of the receiving groove is provided with a stopper, and the stopper is used to prevent the steel ball from falling out completely The receiving slot.

Another object of the present invention is to provide an optical fiber connection assembly that is simple to operate and can meet the requirements of high-density arrangement.

An optical fiber connection assembly includes an adapter and a connector, and the adapter includes:

-The adapter body, which includes a butting portion with a cylindrical end at one end, the butting portion is provided with a butting passage for matching with the connector, and the butting portion is also provided with a receiving groove communicating with the butting passage, A card holder is movably contained in the receiving slot;

-An adapter jacket, which is movably sleeved on the docking portion, the adapter jacket has a first state and a second state, when in the first state, the adapter jacket abuts the clamping body and causes Part of the clamping body can not be retracted into the docking channel. When in the second state, a space for the clamping body to exit the docking channel is provided between the adapter jacket and the opening of the receiving slot;

-An internal push ring, which is sleeved on the docking portion and located between the docking portion and the adapter jacket;

-A driving device, which includes an adapter cord and a first spring, one end of the adapter cord is connected to the adapter jacket, one end of the first spring resists the inner push ring, and the other end resists the On the adapter jacket;

The connector includes:

-The connector body is provided with a second groove for clamping with the clamping body in the adapter.

On the basis of the above technical solution, the end of the adapter cord connected to the adapter jacket is also symmetrically provided with two convex bulges, and the other end of the adapter cord is provided with a non-slip groove.

On the basis of the above technical solution, the adaptor cap further includes an adaptor cap handle, the adaptor cap handle is provided with a tiger-mouth structure, and the tiger-mouth structure is provided with convex ribs cooperating with the anti-slip grooves.

Compared with the prior art, the advantages of the present invention are:

The connector of the present invention is provided with a positioning key on the outer wall of the insertion end of the connector body, and a positioning groove with a bell mouth at the front end is provided on the mating part of the adapter, so that the connector can be automatically aligned when inserted and convenient for operation. Moreover, the connection between the connector and the adapter is a plug-in type, which is more convenient than a screw-type operation and requires less operating space. Furthermore, the adapter is also provided with an adapter cord, which can be unlocked by pulling the adapter cord. The adapter drawstring greatly saves operating space and can achieve high-density arrangement of pre-connected products. In addition, the two-stage sealing is adopted between the connector and the adapter in the present invention, and the two-stage sealing structure enables the pre-finished product to have better waterproof performance.

Description of the drawings

Figure 1 is a closed state diagram of the connector in the embodiment of the present invention;

Figure 2 is a diagram of the open state of the connector in the embodiment of the present invention

Figure 3 is a cross-sectional view of the closed state of the connector in the embodiment of the present invention

Figure 4 is a cross-sectional view of the open state of the connector in the embodiment of the present invention

Figure 5 is a diagram of the buckled state of the adapter cord in the embodiment of the present invention

Figure 6 is an open state diagram of the adapter cord in the embodiment of the present invention

Figure 7 is a cross-sectional view of the adapter cap locked state in the embodiment of the present invention

Figure 8 is a cross-sectional view of the unlocked state of the adapter cap in the embodiment of the present invention

9 is a schematic diagram of the structure of the main body of the adapter in the embodiment of the present invention;

10 is a schematic diagram of the structure of the adapter cord in the embodiment of the present invention;

11 is a schematic diagram of the structure of the adapter cap in the embodiment of the present invention;

Figure 12 is a diagram of a state where the connector is inserted into the adapter in the embodiment of the present invention;

Fig. 13 is a cross-sectional view of the locking state of the connector inserted into the adapter in the embodiment of the present invention.

In the picture: 1-adapter, 10-adapter body, 101-butting part, 102-butting channel, 103-accommodating slot, 104-gap space, 11-adapter jacket, 111-protruding strip, 12-inner push ring, 13 -Adapter cord, 131-convex bag, 132-non-slip groove, 14-first spring, 15-adapter cap, 151-first insertion end, 152-first groove, 153-adapter cap handle, 154-tiger mouth Structure, 155- rib, 16-second spring, 17-steel ball, 18-first circlip, 19-second circlip, 2-connector, 20-connector body, 21-connector jacket, 22- Connector tail sleeve, 23-connector bushing, 24-connector crimping ring, 25-optical cable and ferrule assembly, 26-heat shrinkable tube, 27-connector pull cord, 28-connector cap, 29- The second groove, 100-seal ring, 200-seal gasket.

detailed description

Hereinafter, the present invention will be further described in detail with reference to the accompanying drawings and embodiments.

1 to 4, the embodiment of the present invention provides a connector 2, which includes a connector body 20, a connector jacket 21, a connector tail sleeve 22, a connector bushing 23, and a connector crimping ring 24 , Optical cable and ferrule assembly 25, heat shrinkable sleeve 26, connector pull cord 27 and connector cap 28.

Wherein, referring to FIGS. 3 and 4, the connector body 20 is provided with a second groove 29 for clamping with a matching adapter. The second groove 29 serves as a locking structure when the connector 2 is inserted. When the connector 2 is inserted into the adapter 2, the clamping body is seated in the second groove 29 to realize the locking of the connector 2.

Two sealing rings 100 are provided on the insertion end of the connector body 20 to prevent water or dirt from flowing into the ceramic ferrule in the optical cable and ferrule assembly 25 through the outer wall of the connector body 20. The outer wall of the insertion end of the connector main body 20 is provided with positioning keys, which are used as an alignment structure when the ceramic ferrule is inserted, so as to realize the angle alignment of the ferrule when the connector 2 is inserted and ensure good optical performance.

The connector tail sleeve 22 is connected to one end of the connector main body 20. A connector bushing 23, a connector crimping ring 24 and a heat shrinkable sleeve 26 are also provided in the connector tail sleeve 22, and the connector tail sleeve 22 and The connector body 20 forms a cavity.

The connector jacket 21 is sleeved at the connection between the connector main body 20 and the connector tail 22. A sealing ring 100 is provided at the mating position of the connector jacket 21 and the connector main body 20.

When fixing the optical cable and the ferrule assembly 25, the optical cable and the ferrule assembly 25 first pass through the connector tail sleeve 22, the connector bushing 23, the connector crimping ring 24, put on the C-ring, and pass through the connector body 20. , And then lock the connector bushing 23, and crimp the fiber optic cable reinforcement member to the connector bushing 23 through the connector crimping ring 24, thereby fixing the fiber optic cable. The heat shrinkable sleeve 26 is then used to heat shrink the connector body 20, the connector bushing 23, the connector crimping ring 24, and the optical cable to prevent water or dirt from entering.

One end of the connector pull cord 27 is connected to the connector housing 21, and the other end is connected to the connector cap 28. A sealing ring 100 is provided where the connector cap 28 and the connector housing 21 are mated, because the connector housing 21 and the connector body A sealing ring 100 is provided at the matching place of the 20, and the sealing rings 100 at the two places are combined with each other to prevent external water or dirt from entering the outer wall of the connector main body 20.

As shown in FIG. 1, when the connector 2 is pulled out from the adapter 2, the connector cap 28 can be used to cover the connector body 20 of the connector to prevent dust and water. In this embodiment, the connector The cap 28 and the connector body 20 are screwed together.

Referring to FIGS. 5 to 8, an embodiment of the present invention provides an adapter 2, which includes an adapter main body 10, an adapter cover 11, an inner push ring 12 and a driving device.

Wherein, the adapter main body 10 includes a butting portion 101 with a cylindrical end at one end. The butting portion 101 is provided with a butting channel 102 for matching with the connector, and the docking portion 101 is also provided with the docking channel 102. A communicating receiving groove 103 in which a clamping body is movably accommodated. The docking portion 101 is provided with a positioning groove for positioning when the connector 2 is inserted. The front end of the positioning groove has a bell mouth structure. When the connector 2 is inserted, it can be automatically slid into the positioning groove along the bell mouth to realize the alignment of the ferrule. Preferably, the retaining body in this embodiment is a steel ball 17, the receiving groove 103 is a cylindrical hole, and the bottom of the receiving groove 103 is provided with a stopper, and the stopper is used to prevent the steel ball from 17 completely falls out of the receiving slot 103.

The adapter jacket 11 is movably sleeved on the docking portion 101, the adapter jacket 11 has a first state and a second state, and when in the first state, the adapter jacket 11 abuts the clamping body , And make part of the clamping body extend into the docking channel 102 irreversibly. When in the second state, there is an opening for the clamping body to exit the docking channel 102 between the adapter jacket 11 and the opening of the receiving slot 103 Give way to space 104. In this embodiment, the adapter jacket 11 is provided with a protruding strip 111 protruding from the inner wall. When the adapter jacket 11 is in the first state, the protruding strip 111 is located at the receiving groove 103 and resists The card holder.

The inner push ring 12 is sleeved on the docking portion 101 and is located between the docking portion 101 and the adapter jacket 11.

In this embodiment, when the connector 2 is inserted, first, the sealing ring 100 on the connector body 20 and the hole of the adapter body 10 form a first-level seal.

At the same time, a sealing ring 100 is provided between the inner pushing ring 12 and the adapter jacket 11 and between the adapter jacket 11 and the adapter main body 10. In addition, a sealing ring 100 is also provided on the end surface and the outer ring of the inner push ring 12, which is used to squeeze the sealing structure to form a seal when the connector is inserted. These sealing structures form a second-level seal to prevent water or dirt from entering the interior of the adapter 1. By providing a two-level seal, the ceramic ferrule can be protected from water or dirt.

The driving device includes an adapter pull cord 13 and a first spring 14. One end of the adapter pull cord 13 is connected to the adapter jacket 11, one end of the first spring 14 abuts on the inner push ring 12, and the other end It is held against the adapter jacket 11. Wherein, the adapter cord 13 is configured such that when the adapter cord 13 is pulled, the adapter cord 13 drives the adapter housing 11 and the adapter body 10 to slide relatively, so that the adapter housing 11 is switched from the first state to the second state. Two states, and the first spring 14 is released from the compressed state to provide a driving force for the adapter casing 11 and the adapter main body 10 to slide relatively.

Preferably, the driving device further includes a second spring 16, one end of the second spring 16 abuts on the inner push ring 12, and the other end abuts on the adapter body 10.

The following describes the principle of the adapter in this embodiment:

The mating end of the adapter body 10 and the connector of the present invention is provided with a receiving groove 103 for holding a steel ball 17, an adapter cover 11 and an inner push ring 12 are provided on the outside, and a first spring 14 is provided between the inner push ring and the adapter cover. A second spring 16 is provided between the inner push ring 12 and the adapter body 10, the adapter body 10 is provided with a groove for assembling the first circlip 18, and the adapter jacket 11 is also provided with a groove for assembling the second circlip 19. The above structure is combined to form a locking and unlocking structure.

Referring to Figures 12 and 13, when the connector 2 is inserted, the inner push ring 12 is pushed. Since the inner push ring 12 and the adaptor outer sleeve 11 are provided with a first spring 14, the adaptor outer sleeve 11 can be pushed to slide. The adapter jacket 11 is provided with a circle of protruding strips 111. When the adapter jacket 11 is pushed, the protruding strips 111 advance to the position of the steel ball 17, that is, the adapter jacket 11 switches from the second state to the first state. 17 falls into the second groove 29 of the connector main body 20 of the incoming connector 2 to lock the connector 2.

When the connector 2 needs to be pulled out, pull the adapter jacket 11 so that the convex strip 111 no longer exerts pressure on the steel ball 17. After the steel ball 17 exits the second groove 29, the first spring 14 pushes the inner push ring 12 to slide, and then The inner push ring 12 pushes the connector 2 out to realize the unlocking of the connector.

It is worth mentioning that, in order to adapt to the higher density requirements, the adapter sleeve 11 is provided with an adapter cord 13 in this embodiment. When the connector 2 needs to be withdrawn, only the adapter cord 13 needs to be pulled to make the convex strip 111 It can be unlocked by leaving the steel ball 17, which greatly saves operating space and lays the foundation for the realization of high-density arrangement of pre-connected products.

Preferably, the adapter 1 further includes an adapter cap 15. After the connector 2 is pulled out, the adapter body 10 can be covered with the adapter cap 15 when it is not needed. The adapter cap 15 in this embodiment includes a first insertion end 151 that is matched with the mating portion 101. The first insertion end 151 is provided with a first groove 152. When the first insertion end 151 is inserted When in place, the adapter jacket 11 is in the first state, and the portion of the clamping body extending into the mating channel 102 is located in the first groove 152.

Specifically, referring to Figure 7, the adapter is in a closed state at this time. In this state, the convex strip 111 on the adapter jacket 11 presses the steel ball 17, so that the steel ball 17 is seated in the receiving groove 103 and the first groove 152, thereby locking the adapter cap 15 so that the adapter cap 15 is not in the first spring 14 And the second spring 16 pops up.

See FIG. 8, which is a schematic diagram of the unlocked state of the adapter cap 15. When you need to unlock, pull the adapter cord 13 or directly pull the adapter cover 11, the protruding strip 111 on the adapter cover 11 exits the position of the receiving slot 103, and unlocks the adapter cap 15. At this time, the first spring 14 and the second spring 16 push the inner push ring 12. Make the adapter cap 15 pop out under the action of elastic force.

Further, referring to FIG. 10, the end of the adapter cord 13 connected to the adapter jacket 11 is also symmetrically provided with two convex bulges 131, and the other end of the adapter cord 13 is provided with a non-slip groove 132. After the two convex hulls 131 are symmetrically arranged, the adapter cable 13 can be symmetrically stressed when the adapter jacket 11 is pulled.

Further, as shown in FIG. 11, the adapter cap 15 further includes an adapter cap handle 153, the adapter cap handle 153 is provided with a tiger mouth structure 154, the tiger mouth structure 154 is provided with the anti-skid groove 132 Convex rib 155. The tiger mouth structure 154 can slide along the adapter cord 13 to the anti-slip groove 132, and the rib 155 enters the anti-slip groove 132 and is locked on the adapter cord 13. When the adapter cord 13 needs to be used, just turn the adapter cord 13 to achieve The adapter cap 15 and the anti-slip groove 132 are unlocked.

The insertion end of the adapter cap 15 is provided with a sealing ring 100 to prevent water or dirt from flowing in along the outer wall of the adapter cap 15. In addition, the sealing ring 100 on the end face of the inner push ring 12 and the outer ring can prevent water or dirt from flowing into the insertion end of the adapter cap 15 along the adapter cap 15, and the outer ring of the adapter body 10 is provided with a gasket 200 to prevent water or dirt. Flow into the receiving groove 103 along the adapter jacket. When the adaptor 1 is connected to the connector 2, the removed adaptor cap 15 can also be inserted into the connector cap 28 and rotated and locked.

To sum up, the connector 2 of the present invention is provided with positioning keys on the outer wall of the insertion end of the connector body 20, and at the same time, the mating portion 101 of the adapter 1 is provided with a positioning groove with a bell mouth at the front end, so that the connector 2 Automatic alignment when inserting, easy to operate. Moreover, the connection between the connector 2 and the adapter 1 is a plug-in type, which is more convenient than a screw-type operation and requires less operating space. Furthermore, the adapter 1 is also provided with an adapter cord 13, which can be unlocked by pulling the adapter cord 13. The adapter pull cord 13 greatly saves operating space and can achieve high-density arrangement of pre-connected products. In addition, a two-stage seal is adopted between the connector 2 and the adapter 1 in the present invention, and the two-stage seal structure enables the pre-finished product to have better waterproof performance.

Referring to FIGS. 12 and 13, an embodiment of the present invention provides an optical fiber connection assembly, which includes an adapter 1 and a connector 2.

Wherein, the adapter 1 includes an adapter main body 10, an adapter jacket 11, an inner push ring 12 and a driving device.

The adapter body 10 includes a butting portion 101 having a cylindrical shape at one end. The butting portion 101 is provided with a butting channel 102 for matching with the connector 2, and the docking portion 101 is also provided with a butting channel 102 for matching with the connector 2 102 connected to the receiving groove 103, the receiving groove 103 is movably accommodated in the holder body;

The adapter jacket 11 is movably sleeved on the docking portion 101, the adapter jacket 11 has a first state and a second state, and when in the first state, the adapter jacket 11 abuts the clamping body , And make part of the holding body extend into the docking channel 102 irreversibly. When in the second state, there is an opening for the holding body to exit the docking channel 102 between the adapter jacket 11 and the opening of the receiving slot 103 Make way for space 104;

The inner push ring 12 is sleeved on the docking portion 101 and is located between the docking portion 101 and the adapter jacket 11;

The driving device includes an adapter pull cord 13 and a first spring 14. One end of the adapter pull cord 13 is connected to the adapter jacket 11, one end of the first spring 14 abuts on the inner push ring 12, and the other end It is held against the adapter jacket 11.

Further, the adapter cord 13 is configured such that when the adapter cord 13 is pulled, the adapter cord 13 drives the adapter housing 11 and the adapter body 10 to slide relatively, so that the adapter housing 11 is switched from the first state to In the second state, the first spring 14 is released from the compressed state to provide a driving force for the adapter casing 11 and the adapter body 10 to slide relatively.

Further, the end of the adapter cord 13 connected to the adapter jacket 11 is also symmetrically provided with two convex bulges 131, and the other end of the adapter cord 13 is provided with a non-slip groove 132.

Further, the adapter further includes an adapter cap 15, the adapter cap 15 includes a first insertion end 151 mated with the mating portion 101, the first insertion end 151 is provided with a first groove 152, when the When the first insertion end 151 is inserted in place, the adapter jacket 11 is in the first state, and the portion of the clamping body extending into the mating channel 102 is located in the first groove 152.

Further, the adaptor cap 15 further includes an adaptor cap handle 153, the adaptor cap handle 153 is provided with a tiger-mouth structure 154, and the tiger-mouth structure 154 is provided with a rib 155 that cooperates with the anti-slip groove 132.

Further, the adapter jacket 11 is provided with a protruding strip 111 protruding from the inner wall. When the adapter jacket 11 is in the first state, the protruding strip 111 is located at the receiving groove 103 and resists the Card holder body.

Further, the driving device further includes a second spring 16, one end of the second spring 16 abuts against the inner push ring 12, and the other end abuts against the adapter body 10.

Further, the retaining body is a steel ball 17, the receiving groove 103 is a cylindrical hole, and the bottom of the receiving groove 103 is provided with a stopper, and the stopper is used to prevent the steel ball 17 from completely falling out of the place.述Receiving slot 103.

The connector 2 in this embodiment includes a connector main body 20, a connector jacket 21, a connector tail 22, a connector bushing 23, a connector crimping ring 24, an optical cable and ferrule assembly 25, and a heat shrinkable sleeve 26 , The connector drawstring 27 and the connector cap 28.

Wherein, the connector main body 20 is provided with a second groove 29 for engaging with a matching adapter. The second groove 29 serves as a locking structure when the connector 2 is inserted. When the connector 2 is inserted into the adapter 2, the clamping body is seated in the second groove 29 to realize the locking of the connector 2.

One end of the connector pull cord 27 is connected to the connector housing 21, and the other end is connected to the connector cap 28. A sealing ring 100 is provided where the connector cap 28 and the connector housing 21 are mated, because the connector housing 21 and the connector body A sealing ring 100 is provided at the matching place of the 20, and the sealing rings 100 at the two places are combined with each other to prevent external water or dirt from entering the outer wall of the connector body 20.

When the connector 2 is pulled out of the adapter 2, the connector cap 28 can be used to cover the connector body 20 of the connector, which plays a role of dustproof and waterproof. In this embodiment, the connector cap 28 and the connector body 20 are connected together by threads.

The present invention is not limited to the above-mentioned embodiments. For those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also regarded as the protection of the present invention. Within range. The content not described in detail in this specification belongs to the prior art known to those skilled in the art.

Claims

An adapter, characterized in that it comprises:

The adapter body (10) includes a butting portion (101) with a cylindrical end at one end, the butting portion (101) is provided with a butting channel (102) for matching with the connector, and the butting portion (101) is also A receiving groove (103) communicating with the docking channel (102) is provided, and a clamping body is movably accommodated in the receiving groove (103);

The adapter jacket (11) is movably sleeved on the docking portion (101). The adapter jacket (11) has a first state and a second state. When in the first state, the adapter jacket (11) ) To resist the clamping body, and make part of the clamping body extend into the docking channel (102) irreversibly, when in the second state, the adapter jacket (11) and the receiving groove (103) A space (104) for the card holder to exit the docking channel (102) is provided between the openings;

The inner push ring (12) is sleeved on the docking portion (101) and located between the docking portion (101) and the adapter jacket (11); and

The driving device includes an adapter cord (13) and a first spring (14). One end of the adapter cord (13) is connected to the adapter jacket (11), and one end of the first spring (14) is held against On the inner push ring (12), the other end abuts on the adapter jacket (11).
An adapter according to claim 1, wherein the adapter cord (13) is configured such that when the adapter cord (13) is pulled, the adapter cord (13) drives the adapter jacket (11) Sliding relative to the adapter body (10), the adapter jacket (11) is switched from the first state to the second state, and the first spring (14) is released from the compressed state to provide the adapter jacket (11) and The driving force for the relative sliding of the adapter body (10).
An adapter according to claim 1, characterized in that: the end of the adapter pull cord (13) connected to the adapter jacket (11) is also symmetrically provided with two convex hulls (131), and the adapter pulls The other end of the rope (13) is provided with a non-slip groove (132).
An adaptor according to claim 3, characterized in that: the adaptor further comprises an adaptor cap (15), and the adaptor cap (15) comprises a first insertion end (151) mated with the mating portion (101) ), the first insertion end (151) is provided with a first groove (152), when the first insertion end (151) is inserted in place, the adapter jacket (11) is in the first state, and the The part of the clamping body extending into the butting channel (102) is located in the first groove (152).
An adaptor according to claim 4, characterized in that: the adaptor cap (15) further comprises an adaptor cap handle (153), the adaptor cap handle (153) is provided with a tiger mouth structure (154), and the tiger mouth The structure (154) is provided with a convex rib (155) matched with the anti-skid groove (132).
An adapter according to claim 1, characterized in that: the adapter jacket (11) is provided with a protruding strip (111) protruding from the inner wall, when the adapter jacket (11) is in the first state, The protruding strip (111) is located at the receiving groove (103) and resists the clamping body.
An adapter according to claim 1, characterized in that: the driving device further comprises a second spring (16), one end of the second spring (16) abuts against the inner push ring (12), The other end abuts on the adapter main body (10).
An adapter according to claim 1, characterized in that: the holding body is a steel ball (17), the receiving groove (103) is a cylindrical hole, and the bottom of the receiving groove (103) is provided with a stopper Part, the stop part is used to prevent the steel ball (17) from completely falling out of the receiving groove (103).
An optical fiber connection assembly, comprising an adapter (1) and a connector (2), characterized in that the adapter (1) comprises:

-The adapter body (10), which includes a cylindrical docking portion (101) at one end, the docking portion (101) is provided with a docking channel (102) for matching with the connector (2), and the docking The portion (101) is also provided with a receiving groove (103) communicating with the docking channel (102), and a clamping body is movably accommodated in the receiving groove (103);

-An adapter jacket (11), which is movably sleeved on the docking portion (101), the adapter jacket (11) has a first state and a second state, and when in the first state, the adapter jacket ( 11) Resist the clamping body, and make part of the clamping body extend into the docking channel (102) irreversibly. When in the second state, the adapter jacket (11) and the receiving groove (103) There is a space (104) for the card holder to exit the docking channel (102) between the openings;

-An internal push ring (12), which is sleeved on the docking portion (101) and located between the docking portion (101) and the adapter jacket (11);

-A driving device, which includes an adapter pull cord (13) and a first spring (14), one end of the adapter pull cord (13) is connected to the adapter jacket (11), and one end of the first spring (14) resists On the inner push ring (12), the other end is held against the adapter jacket (11);

The connector (2) includes:

-The connector body (20) is provided with a second groove (29) for engaging with the clamping body in the adapter (1).
An optical fiber connection assembly according to claim 9, characterized in that the adaptor pull cord (13) is configured such that when the adaptor pull cord (13) is pulled, the adaptor pull cord (13) drives the The adapter jacket (11) slides relative to the adapter body (10), so that the adapter jacket (11) is switched from the first state to the second state, and the first spring (14) is released from the compressed state to provide the adapter jacket (11) ) The driving force for sliding relative to the adapter body (10).
An optical fiber connection assembly according to claim 9, characterized in that: the end of the adapter pull cord (13) connected with the adapter jacket (11) is also symmetrically provided with two convex hulls (131), the The other end of the adapter cord (13) is provided with a non-slip groove (132).
An optical fiber connection assembly according to claim 11, characterized in that: the adapter further comprises an adapter cap (15), and the adapter cap (15) comprises a first insertion end mated with the docking portion (101) (151), the first insertion end (151) is provided with a first groove (152), when the first insertion end (151) is inserted in place, the adapter jacket (11) is in the first state, The part of the holding body extending into the butting channel (102) is located in the first groove (152).
An optical fiber connection assembly according to claim 12, characterized in that: the adapter cap (15) further comprises an adapter cap handle (153), and the adapter cap handle (153) is provided with a tiger-mouth structure (154), so The tiger mouth structure (154) is provided with convex ribs (155) matched with the anti-skid grooves (132).