WO2024045466A1

WO2024045466A1 - Adapter, connector, and optical fiber connection box

Info

Publication number: WO2024045466A1
Application number: PCT/CN2023/070277
Authority: WO
Inventors: 刘�文; 沈舜华; 黄美金; 黄晶; 孙莹; 邹峰; 郑涛
Original assignee: 烽火通信科技股份有限公司
Priority date: 2022-09-01
Filing date: 2023-01-04
Publication date: 2024-03-07
Also published as: CN115421252A; CN115421252B

Abstract

An adapter, a connector, and an optical fiber connection box. The adapter comprises: a connection body (1), which is provided with a first fixing portion (11) and a limit slot (12); and an outer shell (2), which is sleeved on the connection body (1), wherein a push ring (20) and an elastic member (21) are provided between the outer shell (2) and the connection body (1); when the connector is inserted into an engagement channel (10), the first fixing portion (11) deforms, and after the push ring (20) is pushed by the connector in an insertion direction to move along the limit slot (12), the first fixing portion (11) springs back and is in a snap-fit with the connector; there is a first unlocking gap between the push ring (20) and the corresponding end of the limit slot (12); and during unlocking, the first fixing portion (11) is driven by the outer shell (2) to deform and is unlocked from the connector, and at the same time, the elastic member (21) springs back to drive the push ring (20) to reset to eliminate the first unlocking gap. According to the adapter, the connector and the optical fiber connection box, compared with a screwing method, the operation difficulty during locking and unlocking is reduced, and particularly for the unlocking process, the operation is simple, quick unlocking can be achieved, and the operation is not affected even in a small installation space.

Description

An adapter, connector and optical fiber connection box

Technical field

This application relates to the technical field of optical fiber quick connection structure design, and in particular to an adapter, connector and optical fiber connection box.

Background technique

At present, most of the connectors and adapters used are industry-standard connectors and adapters. The original design of this type of connectors and adapters is to solve the problem of optical fiber connections indoors or in protective boxes (boxes).

In related technologies, most connectors and adapters on the market adopt a screw-type connection method. Due to its own characteristics, the screw-type unlocking method requires relatively precise insertion when the connector and adapter are docked. Therefore, the screw-type connection method puts forward higher requirements for the operator. In addition, the screw-type unlocking method requires finger operating space to be reserved around the connector and adapter. In limited installation space, especially when density requirements are high, At high levels, operation is very difficult.

Contents of the invention

Embodiments of the present application provide an adapter, a connector and an optical fiber connection box to solve the problem in the related art that the screw-type installation method requires high insertion accuracy and is very difficult to operate in a limited installation space.

In a first aspect, an adapter is provided, which includes:

The connection body is provided with a docking channel for matching with the connector, and the connection body is provided with a first fixing part and a limiting groove connected with the docking channel;

The outer shell is sleeved on the connecting body. A push ring and an elastic member are provided between the outer shell and the connecting body. One end of the elastic member resists the push ring, and the other end resists the push ring. Describe the outer shell;

When the connector is inserted into the docking channel, the first fixing part deforms. After the connector pushes the push ring to move along the limiting groove in the insertion direction, the first fixing part returns The spring reset is engaged with the connector, and at the same time, there is a first unlocking gap between the push ring and the corresponding end of the limiting groove;

When unlocking is required, the outer shell drives the first fixing part to deform to unlock with the connector, and at the same time, the elastic member rebounds to drive the push ring to return to eliminate the first unlocking gap.

In some embodiments, one end of the push ring extends outward to form a first extension side, and the other end extends inward to form a second extension side. The first extension side is used to abut one end of the elastic member, so The second extended edge at least partially extends into the docking channel through the limiting groove;

When the first fixing part is engaged with the connector, there is the first unlocking gap between the second extension edge and the corresponding end of the limiting groove;

When the first fixing part and the connector are unlocked, the second extending edge abuts against the corresponding end of the limiting groove.

In some embodiments, the outer wall of the connecting body is provided with a first convex edge, and the inner wall of the outer shell is provided with a second convex edge that cooperates with the first convex edge;

When the first fixing part is engaged with the connector, the second convex edge cooperates with the first convex edge to limit the movement of the outer shell in the insertion direction.

In some embodiments, the first fixing part includes at least two fixing buckles arranged along the circumferential direction of the docking channel, and a first wedge-shaped surface is provided on the inner side of the fixing buckle, and the first wedge-shaped surface is inserted along the insertion channel. The direction is gradually inclined toward the direction close to the axis of the docking channel.

In some embodiments, the outer shell is provided with an unlocking hole, and at least one side of the unlocking hole is provided with an unlocking boss. The unlocking boss is provided with a second wedge-shaped surface with an inclination direction opposite to that of the first wedge-shaped surface. ;

An unlocking block is provided on the back of each fixed buckle. When the outer shell is used to slide toward the side opposite to the insertion direction, the second wedge-shaped surface gradually squeezes the unlocking block, causing the locking block to slide. The fixing buckle deforms along the radial direction.

In some embodiments, the docking channel is provided with a docking portion, the docking portion is provided with a docking cavity whose axis coincides with the axis of the docking channel, and a ceramic sleeve is accommodated in the docking cavity;

The docking part is provided with a first connecting arm, which is connected to the inner wall of the connecting body, and forms an avoidance area with the connecting body and the docking part for avoiding the push ring and the optical fiber connector. .

In some embodiments, the connection body is provided with a connection hole, and the connection hole is used for retaining the optical fiber connector.

In a second aspect, a connector is provided, which includes:

The connector body is provided with an engaging groove;

A ferrule housing located at one end of the connector body;

The ferrule housing is used to squeeze the first fixing part to deform when inserted into the docking channel of any of the above-mentioned adapters, and the engaging groove is used to reset with the rebound after the ferrule housing pushes the push ring to move. The first fixing part is engaged.

In a third aspect, an optical fiber connection box is provided, which includes:

The box body is provided with a receiving cavity;

A back cover is provided in the receiving cavity, and any of the above-mentioned adapters is integrally formed on the inner side of the back cover.

In some embodiments, the inner side of the back cover is integrally formed with a plurality of connection bodies arranged in an array on the back cover, and the back cover is provided with a plurality of first docking holes for connector insertion, each Each of the first docking holes coincides with the axis of the corresponding docking channel.

In some embodiments, the back cover is also provided with a plurality of first through holes;

The outer shell is located inside the box and has a second unlocking gap between the outer shell and the back cover. The outer shell is provided with a drawstring structure. One end of the drawstring structure is connected to the outer shell, and the other end is connected through the outer shell. The first through hole at least partially extends out of the box body.

In some embodiments, the box body is thermally connected to a front cover for blocking the opening of the receiving cavity, and the front cover is provided with a second penetration hole for the drawstring structure and a second penetration hole for the drawstring structure. The second docking hole into which the connector is inserted;

A sealing gasket is provided between the front cover and the back cover.

In some embodiments, the sealing gasket is provided with a third penetration hole for passing through the drawstring structure and a third docking hole for inserting the connector;

The hole wall of the third through hole is provided with a first annular sealing rib for sealing the drawstring structure, and the hole wall of the third docking channel is provided with a second annular sealing rib for sealing the connector;

The first annular sealing rib and the second annular sealing rib both protrude from the surface of the sealing gasket along the thickness direction of the sealing gasket.

In some embodiments, the back cover is provided with a fixing hole, and the inner surface of the front cover is provided with a plurality of sealing plates surrounding the back cover. The plurality of sealing plates form a space for accommodating the sealing gasket and the back cover. Accommodating space, the sealing plate is provided with barbs for engaging the back cover, and the inner surface of the front cover is provided with a connecting buckle that matches the fixing hole.

In some embodiments, the box body is provided with a tray located in the receiving cavity, and the tray is provided with a second connecting arm;

The back cover is welded to the box body, and the inner side is provided with a connection portion that interference fits with the second connecting arm.

The beneficial effects brought by the technical solution provided by this application include:

The embodiment of the present application provides an adapter. Since the connecting body is provided with a first fixing part and a limiting groove, the connecting body is provided with an outer shell, and a push ring and an elastic member are provided between the outer shell and the connecting body. When the connector is inserted into the docking channel, the first fixing part deforms, and when the first fixing part rebounds and resets and engages with the connector, there is a first unlocking gap between the push ring and the corresponding end of the limiting groove, and when unlocking is required , the outer shell drives the first fixing part to deform to unlock with the connector, and the elastic member rebounds to drive the push ring to reset to eliminate the first unlocking gap, so as to push the connector out of the docking channel for a certain distance, so that the first fixing part The position of engagement with the connector is misaligned, and the connector can be pulled out with one hand. Therefore, compared with the screwing method, the difficulty of locking and unlocking is reduced. In particular, the unlocking process is simple and can achieve quick unlocking. Even if the installation space is small, operation will not be affected.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without exerting creative efforts.

Figure 1 is a cross-sectional view of an adapter provided by an embodiment of the present application;

Figure 2 is a schematic structural diagram of the adapter provided by the embodiment of the present application when the connector is inserted into the adapter and is not yet locked;

Figure 3 is a schematic structural diagram of the adapter provided by the embodiment of the present application when a connector is inserted and locked;

Figure 4 is a schematic structural diagram of the adapter provided by the embodiment of the present application when the connector is pulled out and is not fully unlocked;

Figure 5 is a schematic structural diagram of an external perspective view of a connector inserted into an adapter according to an embodiment of the present application;

Figure 6 is a schematic structural diagram of the outer shell of the adapter provided by the embodiment of the present application;

Figure 7 is a schematic structural diagram of the integrated connection body on the back cover of the optical fiber connection box provided by the embodiment of the present application;

Figure 8 is an exploded view of the structure of the optical fiber connection box provided by the embodiment of the present application;

Figure 9 is a schematic structural diagram of an optical fiber connection box provided by an embodiment of the present application;

Figure 10 is a schematic structural diagram of the optical fiber connection box provided by the embodiment of the present application from an inside perspective;

Figure 11 is a schematic structural diagram of the back cover of the optical fiber connection box provided by the embodiment of the present application integrating the connection body and installing the optical fiber connector;

Figure 12 is a schematic structural diagram of the integrated connection body on the back cover of the optical fiber connection box provided by the embodiment of the present application from another perspective.

In the picture:

1-Connection body, 10-Docking channel, 100-Docking part, 101-Ceramic sleeve, 102-First connecting arm, 103-Docking cavity, 11-First fixed part, 110-First wedge surface, 111-Unlocking Block, 12-limiting slot, 13-connecting hole;

2-Outer shell, 20-Push ring, 200-First extension edge, 201-Second extension edge, 21-Elastic member, 22-Unlocking hole, 23-Unlocking boss, 230-Second wedge-shaped surface, 24-Pull Rope structure, 240-connecting section, 241-wearing section, 242-holding section;

3-Fiber optic connector, 30-first ferrule, 31-first spring, 4-connector body, 40-engagement groove, 400-third wedge surface, 41-external thread, 42-stop, 43 - second ferrule, 44 - second spring, 5 - ferrule housing;

6-box body, 60-accommodating cavity, 61-back cover, 610-first docking hole, 611-first penetration hole, 612-fixing hole, 613-connection buckle, 614-connection part, 62-front cover, 620-second penetration hole, 621-second docking hole, 63-sealing gasket, 630-third penetration hole, 631-third docking hole, 64-tray, 640-second connecting arm, 65-dustproof Plug.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments These are part of the embodiments of this application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

The embodiment of the present application provides an adapter, which can solve the problem in the related art that the screw-type installation method requires high insertion accuracy and is very difficult to operate in a limited installation space.

Referring to Figures 1 to 4, the adapter includes a connecting body 1 and an outer shell 2. The connecting body 1 is provided with a docking channel 10 for matching with the connector. The connecting body 1 is provided with a first fixing part 11 and a docking channel 10. The limiting groove 12 is connected. One end of the limiting groove 12 can penetrate the connecting body 1, or it can be a closed groove structure. The number of the limiting grooves 12 can be two or multiple. In this embodiment, the limiting groove 12 can be connected to the connecting body 1. One end of the position slot 12 penetrates the end of the connection body 1 away from the first fixing part 11, and the number of the limit slots 12 is two, which are symmetrically provided on the outer wall of the connection body 1; the outer shell 2 is sleeved on the connection body 1, and the outer shell 2 is sleeved on the connection body 1. There is a push ring 20 and an elastic member 21 between the body 2 and the connecting body 1. One end of the elastic member 21 resists the push ring 20 and the other end resists the outer shell 2; when the connector is inserted into the docking channel 10, the first The fixing part 11 is deformed under the extrusion of the connector. When the connector continues to be inserted, after the connector pushes the push ring 20 along the insertion direction to move along the limiting groove 12, at this time, the first fixing part 11 rebounds, resets and connects. At the same time, there is a first unlocking gap between the push ring 20 and the corresponding end of the limiting groove 12. When unlocking is required, the outer shell 2 moves in the pull-out direction relative to the connecting body 1 to drive the first fixing part 11. deform, thereby being separated from the connector and unlocked. At the same time, the elastic member 21 rebounds and drives the push ring 20 to reset to eliminate the first unlocking gap. The connector is driven for a certain distance along the pull-out direction under the reset drive of the push ring 20. Generally, the push ring 20 is pushed back. The distance that the ring 20 drives the connector to move is not less than the size of the first unlocking gap. Therefore, the position of the connector at this time allows it to squeeze the first fixing part 11 again. At this time, the connector can be directly removed from the docking channel 10 with one hand. Just pull it out, which reduces the difficulty of unlocking operation. In particular, the unlocking process does not require continuous external force on the outer shell 2. The operation is simple and quick unlocking can be achieved. Even if the installation space is small, the operation will not be affected.

In some embodiments, as shown in FIGS. 1 to 4 , one end of the push ring 20 extends outward to form a first extending edge 200 , and the other end extends inward to form a second extending edge 201 . The first extending edge 200 is used for contacting. At one end of the elastic member 21, the second extension side 201 at least partially extends into the docking channel 10 through the limiting groove 12. The second extension side 201 can be a complete annular extension side, and can be a block structure. When it is a block structure , the second extending edge 201 may be one, or may be multiple. In this embodiment, in order to avoid other structures in the docking channel 10, the other end of the push ring 20 extends inward to form two symmetrically arranged second extending edges. The extended edge 201, when the first fixing part 11 is engaged with the connector, there is a first unlocking gap between the second extended edge 201 and the corresponding end of the limiting groove 12. When the first fixing part 11 is unlocked with the connector, The second extending edge 201 is in contact with the corresponding end of the limiting groove 12 . At the same time, the push ring 20 can provide a reverse force-bearing point for the outer shell 2 when unlocking through the abutment relationship between the second extended edge 201 and the limiting groove 12 .

In some embodiments, as shown in FIG. 1 , the outer wall of the connecting body 1 is provided with a first flange, and the inner wall of the outer shell 2 is provided with a second flange that cooperates with the first flange. The first flange and the third flange are The mating surfaces of the two convex edges can both be vertical planes, or they can be wedge-shaped surfaces that match each other. When the first fixing part 11 is engaged with the connector, the second convex edge cooperates with the first convex edge to limit the housing. The body 2 moves in the insertion direction, so that the elastic member 21 remains in a compressed state, and provides a reverse force point for the elastic member 21, so that when locking, there is a gap between the second extended edge 201 and the corresponding end of the limiting groove 12. There is a first unlocking gap, and the gap of the first unlocking gap remains unchanged.

In some embodiments, as shown in FIGS. 1 to 4 , the first fixing part 11 includes at least two fixing buckles arranged along the circumference of the docking channel 10 . When the connector is not inserted into the docking channel 10 , the fixing buckles are at least partially fixed. Extending into the docking channel 10, a first wedge-shaped surface 110 is provided on the inside of the fixing buckle. The first wedge-shaped surface 110 is gradually inclined along the insertion direction toward the direction close to the axis of the docking channel 10. When the connector is inserted into the docking channel 10, The connector squeezes the first wedge-shaped surface 110 to make the fixing buckle more easily deformed during the insertion process to avoid excessive friction and damage to the contact surface after multiple insertions. In addition, in addition to the wedge-shaped surface design structure, the fixed buckle can also have an arc-shaped surface.

In some embodiments, as shown in FIGS. 5 and 6 , the outer shell 2 is provided with unlocking holes 22 , the number of the unlocking holes 22 corresponds to the number of fixing buckles, and at least one side of the unlocking hole 22 is provided with an unlocking boss 23 , the unlocking boss 23 is provided with a second wedge-shaped surface 230 that is opposite to the inclination direction of the first wedge-shaped surface 110. Here, the unlocking boss 23 can be provided only on one side of the unlocking hole 22, or can be provided on both sides of the unlocking hole 22 at the same time. , there is an unlocking block 111 on the back of each fixed buckle. The back specifically refers to the side of the fixed buckle facing away from the docking channel 10. The unlocking block 111 is integrally formed with the fixed buckle and extends outward along at least one side of the fixed buckle. The unlocking block 111 can only extend along one side of the fixing buckle, or can extend along both sides of the fixing buckle, depending on the number and arrangement position of the unlocking bosses 23 . In this embodiment, unlocking bosses 23 are symmetrically provided on both sides of the unlocking hole 22. The unlocking blocks 111 extend outward along both sides of the fixing buckle and contact the second wedge-shaped surface 230. When unlocking is required, the outer shell is 2 slides toward the side opposite to the insertion direction. At this time, the second wedge-shaped surface 230 gradually squeezes the unlocking block 111, causing the fixing buckle to deform in the radial direction and move out of the docking channel 10, thereby unlocking and separating from the connector.

In some embodiments, as shown in FIGS. 1 and 12 , a docking portion 100 is provided in the docking channel 10 . The docking portion 100 can be cylindrical or square in shape. The docking portion 100 has an axis connected with the docking channel 10 . The docking cavity 103 has overlapping axes. The ceramic sleeve 101 is accommodated in the docking cavity 103. The docking part 100 is provided with a first connecting arm 102. The number of the first connecting arm 102 may be one or multiple. In this embodiment, , the docking part 100 has a cylindrical shape to facilitate docking. There are two first connecting arms 102 , which are symmetrically arranged inside the docking channel 10 . The first connecting arms 102 are connected to the inner wall of the connecting body 1 for docking. The first connecting arm 102, the connecting body 1 and the docking part 100 form an avoidance area for avoiding the push ring 20 and the optical fiber connector 3, ensuring that the push ring 20 can move along the limiting groove 12. Moving within a certain range also ensures that the optical fiber connector 3 can be inserted into the docking channel 10 and docked with the docking cavity 103 .

In some embodiments, as shown in Figures 7 and 11, the connection body 1 is provided with connection holes 13. The connection holes 13 are used to hold the optical fiber connector 3. The number of the connection holes 13 can be two, symmetrically located on On the connection body 1, when the fiber optic connector 3 is inserted into the docking channel 10, it matches the corresponding position of the fiber optic connector 3 to achieve fastening, so as to connect the connection body 1 and the fiber optic connector 3. The fiber optic connector 3 is provided with a The first ferrule 30 is connected to the connector.

This application also provides a connector. As shown in Figures 1 to 4, this connector includes a connector body 4 and a ferrule housing 5. The connector body 4 is provided with an engaging groove 40. The engaging groove 40 It can be a complete annular groove structure, or it can be a plurality of structures arranged at separate intervals. The ferrule housing 5 is located at one end of the connector body 4, and a gap is formed between the ferrule housing 5 and the corresponding end of the connector body 4. It is used to receive and fix the second ferrule 43 that is docked with the first ferrule 30. The first ferrule 30 is provided with a first spring 31, and the second ferrule 43 is provided with a second spring 44. The first spring 31 and The second spring 44 is used to fix the first ferrule 30 and the second ferrule 43 respectively, limit the axial outward direction of the first ferrule 30 and the second ferrule 43, and is also used to provide buffering in the axial direction. The ferrule housing 5 is used to squeeze the first fixing part 11 to deform when inserted into the mating channel 10 such as an adapter, so as to continue to insert along the mating channel 10. When the ferrule housing 5 contacts the push ring 20 and drives the push ring 20 After moving along the insertion direction, the position of the engaging groove 40 corresponds to the fixing buckle. At this time, the fixing buckle is no longer squeezed. After rebounding and resetting, it engages with the engaging groove 40. The end of the fixing buckle close to the optical fiber connector 3 is vertical. The wall of the engaging groove 40 close to the optical fiber connector 3 is also a vertical surface. The two mating surfaces resist each other after the fixed buckle is fastened in the engaging groove 40, thereby realizing the connection between the connector and the adapter, and also making the connection between the connector and the adapter possible. The gap between the push ring 20 and the corresponding side of the limiting groove 12 is maintained, and the gap can be used to separate the connector body 4 from the adapter when unlocking. The structure of this connector is very simplified. Compared with the connector structure in related technologies, the size and volume can be reduced, and can be applied in more different docking environments. It can also be more adapted to small control spaces, making it convenient for operators to operate. Correspondingly, installation and unlocking are very convenient, which makes this connector suitable for use in many small docking environments.

In some embodiments, as shown in FIGS. 2 and 3 , the groove wall of the engaging groove 40 away from the optical fiber connector 3 can be a vertical surface or a wedge-shaped surface. In this embodiment, the engaging groove 40 is away from the optical fiber. The groove wall of the connector 3 is a third wedge-shaped surface 400 that is in the same direction and matches the first wedge-shaped surface 110 of the fixing buckle.

In some embodiments, as shown in Figures 2 and 3, the connector may also include a dust cap. The dust cap may be used to cover the ferrule housing 5 and the connector body 4 to prevent dust and water. The dust cap may have an internal thread; the connector body 4 has an external thread 41 that matches the internal thread, and the external thread 41 has at least two thread starting points, that is, the external thread 41 may include two thread starting points or more than two threads. Starting point, when there are N thread starting points in a section, the distribution angle of each thread starting point is 360°/N. This setting allows each thread starting point to design a relatively large lead, so that within a certain length area, The number of turns at the starting point of each thread is reduced, so the number of turns the dust cap needs to rotate when screwed and locked with the connector body 4 can be reduced, and the installation time can be shortened. At the same time, a stopper 42 is provided at the end of the external thread 41. When the front end of the internal thread rotates to contact the stopper 42, it cannot rotate further, which can remind the operator that it has been locked and does not need to continue tightening.

This application also provides an optical fiber connection box, as shown in Figures 8 to 10. This optical fiber connection box includes a box body 6 and a back cover 61. The box body 6 is provided with a receiving cavity 60. The receiving cavity 60 includes an opening. The box body 6 is an injection molded part with an opening of the receiving cavity 60 at one end and is closed around, for protecting the adapter, optical fiber, optical fiber connector 3 and other devices located in the receiving cavity 60 of the box body 6; the back cover 61 is covered in the receiving cavity 60 , the adapter in the above embodiment is integrally formed on the inner surface of the back cover 61. Therefore, the adapter is located inside the box body 6. After the structure previously arranged outside the box body 6 is transferred to the box body 6, the structure between the structures is ensured. It will not be eroded by sand, dust, rain or ultraviolet rays, etc., and most of the structures are protected as much as possible, which not only ensures the stability of the connection, but also extends the protection life; in addition, after the structure is transferred to the box 6, it is also As much operating space as possible is reserved outside the box body 6 to facilitate the operation of the operator.

In some embodiments, as shown in FIG. 7 , the inner side of the back cover 61 is integrally formed with multiple connection bodies 1 arranged in an array on the back cover 61 . The connection bodies 1 can be arranged freely or in an array. In this example, In the embodiment, the connection bodies 1 are arranged in an array to make full use of the space in the box 6. Correspondingly, the back cover 61 is provided with a plurality of first docking holes 610 for connector insertion. Each first docking hole 610 is Coincident with the axis of the corresponding docking channel 10 .

In some embodiments, as shown in FIG. 8 , the back cover 61 is also provided with a plurality of first through holes 611 . The outer shell 2 is located in the box body 6 and has a second unlocking gap between the outer shell 2 and the back cover 61 . The second unlocking gap can provide an escape space for the outer shell 2 when unlocking. The outer shell 2 is provided with a drawstring structure 24. One end of the drawstring structure 24 is connected to the outer shell 2, and the other end is at least partially extended through the first through hole 611. When the box body 6 needs to be unlocked, the operator pulls one end of the drawstring structure 24 extending out of the box body 6 to unlock the box body 6 .

In some embodiments, as shown in FIG. 6 , the drawstring structure 24 sequentially includes a connecting section 240 , a penetration section 241 and a holding section 242 . The connecting section 240 and the outer shell 2 can be integrally formed, or other connections can be used. Connected in a way, the penetration section 241 can be cylindrical, square, triangular or other shapes, and the holding section 242 can be a flat structure, or can be a round, square, triangular or other other structures. In this embodiment, the connecting section 240 is integrally formed with the outer shell 2 to ensure the stability of the overall connection. The penetration section 241 is a cylindrical shape that matches the first penetration hole 611 , and the holding section 242 has a flat structure, making it easy to hold. hold.

In some embodiments, as shown in FIG. 6 , the end of the holding section 242 away from the wearing section 241 is provided with an enlarged portion 243 , and the enlarged portion 243 is provided with an anti-slip pattern 244 . The enlarged portion 243 can be in many shapes, such as water droplets. shape, trapezoid, cylindrical shape, etc. In this embodiment, the enlarged portion 243 is in the shape of a water drop, and its size gradually becomes larger, making it easier for the operator to hold it, and the enlarged portion 243 is provided with anti-slip lines 244 to prevent slippage when pulling.

In some embodiments, as shown in FIGS. 8 and 10 , the box body 6 is thermally connected to a front cover 62 for blocking the opening of the receiving cavity 60 , and the front cover 62 is provided with a second hole for the drawstring structure 24 to pass through. The through hole 620 and the second mating hole 621 for connector insertion. The second through hole 620 corresponds to the first through hole 611. The second mating hole 621 corresponds to the first mating hole 610. The front The cover 62 is used to cooperate with the opening of the receiving cavity 60 of the box body 6 to form a seal along the edge of the front cover 62. A sealing gasket 63 is provided between the front cover 62 and the back cover 61, and the sealing gasket 63 is used to seal the seal respectively. The drawstring structure 24 and the connector form a sealed connection with the front cover 62 and the rear cover 61 .

In some embodiments, as shown in FIG. 8 , the sealing gasket 63 is provided with a third through hole 630 that passes through the drawstring structure 24 and corresponds to the first through hole 611 and the second through hole 620 respectively. , and a third mating hole 631 for connector insertion and corresponding one-to-one with the first mating hole 610 and the second mating hole 621, the first through hole 611, the second through hole 620 and the third through hole. The number and position of the holes 630 are consistent with the number and arrangement of the tensile structures. Similarly, the number and position of the first docking channel 610 , the second docking channel 621 and the third docking channel 631 are also consistent with the number and arrangement of the connecting body 1 The quantity and arrangement position remain consistent. The hole wall of the third through hole 630 is provided with a first annular sealing rib for sealing the drawstring structure 24, and the hole wall of the third docking channel 631 is provided with a second annular sealing rib for sealing the connector. The first annular sealing rib and The second annular sealing ribs protrude from the surface of the sealing gasket 63 along the thickness direction of the sealing gasket 63 to form sealing connections with the front cover 62 and the rear cover 61 respectively. When the box body 6 is not in use, the second docking hole 621 of the front cover 62 is sealed with a dust-proof plug 65 .

In some embodiments, as shown in FIG. 7 , the back cover 61 is provided with a fixing hole 612 , and the inner surface of the front cover 62 is provided with a plurality of sealing plates surrounding the back cover 61 , and the plurality of sealing plates surround the seal. The sealing plate is provided with barbs for engaging the back cover 61 in the accommodation space of the pad 63 and the back cover 61. The inner surface of the front cover 62 is provided with a connecting buckle 613 that matches the fixing hole 612. When the back cover 61 is located on the seal When it is in the accommodation space enclosed by the board, the barbs are respectively engaged with the four peripheral edges of the back cover 61 , and the connecting buckles 613 pass through the sealing gasket 63 and then engage with the fixing holes 612 on the back cover 61 one by one.

In some embodiments, as shown in FIGS. 7 and 8 , the box 6 is also provided with a tray 64 located in the receiving cavity 60 . The tray 64 is provided with a second connecting arm 640 , and the number of the second connecting arm 640 may be one. , or there can be multiple ones. The second connecting arms 640 can be provided on the side of the tray 64 or on the top edge of the tray 64. In this embodiment, the number of the second connecting arms 640 is two, symmetrical. Disposed on both sides of the tray 64, the back cover 61 is welded to the box body 6. The inner side of the back cover 61 is provided with a connecting portion 614 that interferes with the second connecting arm 640 to achieve connection and fixation with the tray 64.

In the description of this application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this application and simplifying the description. It is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as a limitation on the present application. Unless otherwise clearly stated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, It can also be an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

It should be noted that in this application, relational terms such as “first” and “second” are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply There is no such actual relationship or sequence between these entities or operations. Furthermore, the terms "comprises," "comprises," or any other variations thereof are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also those not expressly listed other elements, or elements inherent to the process, method, article or equipment. Without further limitation, an element defined by the statement "comprises a..." does not exclude the presence of additional identical elements in a process, method, article, or device that includes the stated element.

The above descriptions are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be practiced in other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

An adapter, characterized in that it includes:

The connection body (1) is provided with a docking channel (10) for matching with the connector. The connection body (1) is provided with a first fixing part (11) and a limiter connected with the docking channel (10). bitslot(12);

The outer shell (2) is sleeved on the connecting body (1). A push ring (20) and an elastic member (21) are provided between the outer shell (2) and the connecting body (1). One end of the elastic member (21) resists the push ring (20), and the other end resists the outer shell (2);

When the connector is inserted into the docking channel (10), the first fixing part (11) is deformed, and the push ring (20) is pushed along the limiting groove (20) along the insertion direction of the connector. 12) After movement, the first fixing part (11) rebounds and resets to engage with the connector. At the same time, there is a first unlocking gap between the push ring (20) and the corresponding end of the limiting groove (12). ;

When it is necessary to unlock, the outer shell (2) drives the first fixing part (11) to deform to unlock the connector, and at the same time, the elastic member (21) rebounds to drive the push ring ( 20) Reset to eliminate the first unlocking gap.
An adapter as claimed in claim 1, characterized in that:

One end of the push ring (20) extends outward to form a first extension side (200), and the other end extends inward to form a second extension side (201). The first extension side (200) is used to contact the One end of the elastic member (21), the second extension edge (201) at least partially extends into the docking channel (10) through the limiting groove (12);

When the first fixing part (11) is engaged with the connector, there is the first unlocking gap between the second extending edge (201) and the corresponding end of the limiting groove (12);

When the first fixing part (11) and the connector are unlocked, the second extending edge (201) contacts the corresponding end of the limiting groove (12).
An adapter as claimed in claim 1, characterized in that:

The outer wall of the connecting body (1) is provided with a first convex edge, and the inner wall of the outer shell (2) is provided with a second convex edge that cooperates with the first convex edge;

When the first fixing part (11) is engaged with the connector, the second convex edge cooperates with the first convex edge to limit the movement of the outer shell (2) in the insertion direction.
An adapter as claimed in claim 1, characterized in that:

The first fixing part (11) includes at least two fixing buckles arranged along the circumferential direction of the docking channel (10). A first wedge-shaped surface (110) is provided on the inside of the fixing buckle. The first wedge-shaped surface (110) 110) Gradually tilt toward the axis of the docking channel (10) along the insertion direction.
An adapter as claimed in claim 4, characterized in that:

The outer shell (2) is provided with an unlocking hole (22), and at least one side of the unlocking hole (22) is provided with an unlocking boss (23). The unlocking boss (23) is provided with the first locking boss (23). a second wedge-shaped surface (230) with an opposite inclination direction to the wedge-shaped surface (110);

An unlocking block (111) is provided on the back of each fixed buckle. When the outer shell (2) is used to slide toward the side opposite to the insertion direction, the second wedge-shaped surface (230) gradually Squeeze the unlocking block (111) to cause the fixing buckle to deform in the radial direction.
An adapter as claimed in claim 1, characterized in that:

The docking channel (10) is provided with a docking portion (100), and the docking portion (100) is provided with a docking cavity (103) whose axis coincides with the axis of the docking channel (10). The docking cavity (103) ) contains a ceramic sleeve (101);

The docking part (100) is provided with a first connecting arm (102). The first connecting arm (102) is connected to the inner wall of the connecting body (1) and is connected with the connecting body (1) and the docking part. (100) forms an avoidance area for avoiding the push ring (20) and the optical fiber connector (3).
An adapter according to claim 1, characterized in that: the connection body (1) is provided with a connection hole (13), and the connection hole (13) is used to hold the optical fiber connector (3).
A connector, characterized in that it includes:

The connector body (4) is provided with an engaging groove (40);

A ferrule housing (5), which is located at one end of the connector body (4);

The ferrule housing (5) is used to squeeze the first fixing part (11) to deform when inserted into the docking channel (10) of the adapter according to any one of claims 1-7, and the engaging groove (40) is used to engage with the first fixing part (11) that rebounds and resets after the ferrule housing (5) pushes the push ring (20) to move.
An optical fiber connection box, characterized in that it includes:

The box body (6) is provided with a receiving cavity (60);

A back cover (61) is provided in the receiving cavity (60), and the adapter according to any one of claims 1 to 7 is integrally formed on the inner side of the back cover (61).
An optical fiber connection box as claimed in claim 9, characterized in that:

The inner side of the back cover (61) is integrally formed with a plurality of connection bodies (1) arranged in an array on the back cover (61). The back cover (61) is provided with a plurality of connectors for insertion. Each first docking channel (610) is coincident with the axis of the corresponding docking channel (10).
An optical fiber connection box as claimed in claim 9, characterized in that:

The back cover (61) is also provided with a plurality of first through holes (611);

The outer shell (2) is located in the box body (6), and there is a second unlocking gap between the outer shell (2) and the back cover (61). The outer shell (2) is provided with a drawstring structure (24), and the outer shell (2) is provided with a drawstring structure (24). One end of the drawstring structure (24) is connected to the outer shell (2), and the other end at least partially extends out of the box (6) through the first through hole (611).
An optical fiber connection box as claimed in claim 11, characterized in that:

The box body (6) is hot-melt connected to a front cover (62) for blocking the opening of the receiving cavity (60), and the front cover (62) is provided with a hole for the drawstring structure (24) to pass through. The second penetration hole (620) and the second mating hole (621) for the connector insertion;

A sealing gasket (63) is provided between the front cover (62) and the back cover (61).
An optical fiber connection box as claimed in claim 12, characterized in that:

The sealing gasket (63) is provided with a third penetration hole (630) for passing the drawstring structure (24) and a third docking hole (631) for inserting the connector;

The hole wall of the third through hole (630) is provided with a first annular sealing rib for sealing the rope structure (24), and the hole wall of the third docking channel (631) is provided with a first annular sealing rib for sealing the connection. The second annular sealing rib of the device;

The first annular sealing rib and the second annular sealing rib both protrude from the surface of the sealing gasket (63) along the thickness direction of the sealing gasket (63).
An optical fiber connection box as claimed in claim 12, characterized in that:

The back cover (61) is provided with a fixing hole (612), and the inner surface of the front cover (62) is provided with a plurality of sealing plates surrounding the back cover (61). The plurality of sealing plates form a storage space. The accommodating space of the sealing gasket (63) and the back cover (61) is provided with a barb for snapping the back cover (61) on the sealing plate, and the inner surface of the front cover (62) is provided with the The fixing hole (612) matches the connecting buckle (613).
An optical fiber connection box as claimed in claim 9, characterized in that:

The box (6) is provided with a tray (64) located in the receiving cavity (60), and the tray (64) is provided with a second connecting arm (640);

The back cover (61) is welded to the box body (6), and the inner side is provided with a connecting portion (614) that interferes with the second connecting arm (640).