Dustproof lgiht-blocking adapter

Abstract

A dustproof light-blocking adapter, comprising: a frame (1) and light-blocking assemblies (2), wherein horizontally-arranged accommodating chambers having upward openings are formed inside the front end of the frame (1). The front end of each accommodating chamber is provided with a port for fitting with a connector (7) by insertion, and the interior of each accommodating chamber is provided with one light-blocking assembly (2), the light-blocking assembly (2) comprising a hook (21) and a blocking plate (22), wherein a side wall of the accommodating chamber is provided with a guide rail (11) for restricting vertical sliding of the blocking plate (22), the guide rail (11) being a circular-arc guide rail that protrudes outwards in the direction of opening of the accommodating chamber, and the bottom of the guide rail (11) being aligned with the bottom of the port; an upper end of the hook (21) is hinged to the middle of an upper end face of the accommodating chamber, and a lower end of the hook (21) is hinged and fitted into the blocking plate (22) by insertion; and the reciprocating rotation motion of the hook (21) drives the blocking plate (22) to reciprocatingly slide up and down, making the blocking plate (22) block or bypass the port. By means of providing an circular-arc guide rail that protrudes outwards in the direction of opening of each accommodating chamber, the bottom of the guide rail (11) being aligned with the bottom of the port, and configuring the upper end of the hook (21) to hinge to the middle of the upper end face of the accommodating chamber, the adapter is more compact and precise, while also saving on space.

Description

A dustproof and light-shielding adapter Technical Field

[0001] The utility model relates to an optical fiber adapter, in particular to a dust-proof and light-shielding SC-type LC adapter. Background Art

[0002] Fiber optic adapters, which can be plugged into fiber optic connectors of different interface types at both ends, are widely used in fiber optic distribution frames, fiber optic communication equipment, instruments, etc. One type of fiber optic adapter is the SC-LC adapter, which uses a convenient modular jack latch mechanism.

[0003] However, the general SC-type LC adapters on the market do not have a light shield function, and their cavities are easily affected by dust and debris. In addition, the light emitted from the uncovered connector is irritating to the human eye, and maintenance personnel need to use dust caps to block the light. Some of the adapters use a dust cap structure, which must be removed when in use. The dust cap is easily picked up by dust during the process of being fully removed and put on, resulting in dust protection failure, and the dust cap is easy to lose.

[0004] To solve the above problems, a fiber optic adapter has been developed that has a shading component installed in the chamber that slides up and down to block the light emitted from the port. This adapter also achieves the effect of blocking light and preventing dust, but its height is not suitable for high-density fiber optic wiring systems and is inconvenient to use.

[0005] Utility Model Content

[0006] In order to solve the problem that the existing dust-proof and light-shielding adapter is too high, a dust-proof and light-shielding adapter is proposed.

[0007] The technical problems of the present invention are solved by the following technical solutions:

[0008] A dustproof light-shielding adapter comprises a frame and a light-shielding assembly, wherein the front end of the frame is internally formed with horizontally arranged and upwardly opening receiving chambers, the front end of the receiving chambers is provided with a port for plugging and cooperating with a connector, each receiving chamber is provided with a light-shielding assembly, and the light-shielding assembly comprises a hook and a baffle, wherein the side wall of the receiving chamber is provided with a guide rail for limiting the vertical sliding of the baffle, the guide rail is a circular arc guide rail convex outwardly in the direction of the receiving chamber opening, the bottom of the guide rail is aligned with the bottom of the port, the upper end of the hook is hinged to the middle of the upper end surface of the receiving chamber, and the lower end of the hook is interlaced and hinged with the baffle; the baffle is driven to slide back and forth up and down with the reciprocating rotation of the hook, so that the baffle blocks or avoids the port.

[0009] In some embodiments, it also includes an upper cover that is detachably mounted on the upper opening of the chamber, and the upper cover cooperates with the frame to form a closed cavity.

[0010] In some embodiments, the shading assembly further includes an elastic spring, and two ends of the elastic spring respectively support the upper surface of the hook and the surface of the frame facing the hook.

[0011] In some embodiments, a lower surface of the hook member contacts and cooperates with the connecting member inserted into the port to drive the hook member to swing upward.

[0012] In some embodiments, a protruding arch portion is provided on the lower surface of the hook, and the arch portion is snap-fitted with a pre-set elastic fastener on the connecting member.

[0013] In some embodiments, the upper cover is provided with an upper cover fixing piece, and the upper end of the frame is preset with a fixing portion that cooperates with the upper cover fixing piece to fix the upper cover.

[0014] In some embodiments, the upper end of each hook member is hinged to the top of the chamber through a common hinge shaft extending in the transverse direction.

[0015] In some embodiments, the baffle is made of translucent material and includes a connection identification portion and a non-connection identification portion. The non-connection identification portion is used to block the laser emitted from the port, and the connection identification portion is illuminated by the laser when the connector is connected to the port.

[0016] In some embodiments, the guide rails are guide grooves extending in vertical arcs on both side walls of the chamber, the two guide grooves are aligned with each other, and guide blocks are formed on both sides of the baffle and respectively slideably cooperate with the guide grooves.

[0017] In some embodiments, a driving arm is formed at the lower end of the hook, and a mating groove is formed on the baffle. The end of the driving arm is embedded in the mating groove, and the driving arm contacts and fits with the upper top surface or lower bottom surface of the mating groove. The reciprocating rotation of the hook drives the baffle to slide up and down, so that the baffle blocks or avoids the port.

[0018] The beneficial effects of the present invention compared with the prior art are:

[0019] The dust-proof and light-shielding adapter proposed by the utility model reduces the height of the adapter by arranging the arc guide rail protruding outward toward the opening of the receiving chamber, aligning the bottom of the guide rail with the bottom of the port, and hingedly connecting the upper end of the hook to the middle of the upper end surface of the receiving chamber, making the adapter more compact and precise, while saving space, and complying with the existing industry standard YDT 1272.3-2005 Fiber Optic Active Connector Part 3: The height of the SC type is less than 9.3 mm.

[0020] In some embodiments, it also has the following effects:

[0021] By setting the connection identification part and the non-connection identification part of the baffle, the connection identification part blocks the laser emitted from the port. While ensuring that the port laser is blocked, the connection identification part is illuminated by the laser when the connector is connected to the port, making it easy to observe the connection between the connector and the port. When the connector is not inserted into the port or after the connector is removed, the baffle can always slide to a position that closes the port under the action of the spring, which not only effectively blocks dust from entering, but also has a light-shielding effect. It has a simple structure and is easy to operate. In addition, the upper cover and the frame are assembled by the upper cover fixing part and the fixing part. This is simple and structurally strong. It also facilitates the replacement of part of the structure after the product is damaged, reducing costs.

[0022] Other beneficial effects of the embodiments of the present invention will be further described below. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG1 is an exploded view of a dustproof and light-shielding adapter according to an embodiment of the present invention.

[0024] FIG2 is an axonometric view of two shading components connected by an axis in an embodiment of the present utility model.

[0025] FIG3 is a cross-sectional view of the connection between the dustproof and light-shielding adapter and the connector in an embodiment of the present invention.

[0026] FIG4 is a cross-sectional view of the connector in an embodiment of the present invention.

[0027] FIG5 is a cross-sectional view of the dustproof and light-shielding adapter in an embodiment of the present invention.

[0028] FIG6 is an axonometric view of the baffle in an embodiment of the present invention.

[0029] FIG7 is a cross-sectional view of a conventional dust-proof and light-shielding adapter.

[0030] FIG8 is a cross-sectional view of a conventional dustproof light-shielding adapter with the light-shielding component removed.

[0031] FIG9 is an axonometric view of a baffle in a conventional dust-proof and light-shielding adapter.

[0032] The reference numerals are as follows: 1-frame, 11-guide rail, 2-light shielding assembly, 21-hook, 22-baffle, 3-upper cover, 4-elastic spring, 5-shaft, 6-sleeve plug, 7-connecting piece, 71-polished end surface. DETAILED DESCRIPTION

[0033] The present invention will be further described below with reference to the accompanying drawings and in combination with preferred embodiments. It should be noted that, unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other.

[0034] It should be noted that the directional terms such as left, right, up, down, top, and bottom in this embodiment are merely relative concepts, or are based on the normal use status of the product, and should not be considered as restrictive.

[0035] In order to solve the problem that the existing dust-proof and light-shielding adapter is too high, an embodiment of the present utility model proposes a dust-proof and light-shielding adapter with a simple structure, which can effectively block dust from entering, has a good light-shielding effect, and has the function of indicating the on and off of the optical fiber link. The adapter includes a frame and a light-shielding component. The front end of the frame is internally formed with a chamber that is arranged horizontally and has an upward opening. The front end of the chamber is provided with a port for plugging and cooperating with a connector. Each chamber is provided with a light-shielding component, which includes a hook and a baffle. The side wall of the chamber is provided with a guide rail for limiting the vertical sliding of the baffle. The guide rail is an arc guide rail convex outward toward the opening direction of the chamber. The bottom of the guide rail is aligned with the bottom of the port. The upper end of the hook is hinged to the middle of the upper end surface of the chamber, and the lower end of the hook is interlaced and hinged with the baffle. The baffle is driven to slide back and forth up and down with the reciprocating rotation of the hook, so that the baffle blocks or avoids the port.

[0036] In a preferred embodiment, it also includes an upper cover that is detachably mounted on the upper opening of the chamber, and the upper cover cooperates with the frame to form a closed cavity. The light-shielding component also includes an elastic spring, the two ends of which are respectively supported on the upper surface of the hook and the surface of the frame facing the hook. The lower surface of the hook contacts and cooperates with the connector inserted into the port to drive the hook to swing upward. The lower surface of the hook is provided with a protruding arched portion, and the arched portion is engaged with the elastic fastener preset on the connector. Specifically, the upper surface of the hook is the surface of the hook facing the upper cover, and the lower surface of the hook is the surface of the hook facing the connector insertion port.

[0037] In different embodiments, the upper cover is provided with an upper cover fixing piece, and the upper end of the frame is preset with a fixing portion that cooperates with the upper cover fixing piece to fix the upper cover. Specifically, the upper cover fixing piece is an upper cover buckle.

[0038] Specifically, the upper end of each hook is hinged to the top of the chamber through a common hinge shaft extending laterally. The baffle is made of translucent material and includes a connection identification portion and a non-connection identification portion. The non-connection identification portion is used to block the laser emitted from the port, and the connection identification portion is illuminated by the laser when the connector is connected to the port. The guide rail is a guide groove extending vertically along the side walls of the chamber. The two guide grooves are aligned, and guide blocks are formed on both sides of the baffle, which slide in conjunction with the guide grooves. A driving arm is formed at the lower end of the hook, and a matching groove is formed on the baffle. The end of the driving arm is embedded in the matching groove, and the driving arm contacts and matches the upper top surface or lower bottom surface of the matching groove. The reciprocating rotation of the hook drives the baffle to slide up and down, so that the baffle blocks or avoids the port. The dustproof and light-shielding adapter of the embodiment of the present utility model is specifically an SC-type LC adapter.

[0039] Example:

[0040] This embodiment discloses an SC-type LC adapter, as shown in FIG1 , which includes: a frame 1 , an upper cover 3 , a sleeve plug 6 , a light shielding component 2 , a shaft 5 and an elastic spring 4 . Among them, the shading component 2 is shown in Figure 2, which includes a hook 21 and a translucent baffle 22. The specific number of shading components 2 corresponds to the number of chambers in the frame 1. A plurality of chambers with upper openings and arranged horizontally are formed inside the front end of the frame. The front end of the chamber is provided with a port for plugging with a preset connector, and each chamber is provided with a shading component. As shown in Figure 5, the baffle 22 is connected to the chamber in an arc sliding manner inside the frame 1. Specifically, the baffle 22 slides along the guide rail 11 that limits the vertical sliding of the baffle 22 along the side wall of the chamber. The guide rail 11 is an arc guide rail convex outward toward the opening direction of the chamber. The upper end of the hook 21 is hinged to the chamber through the shaft 5, and the lower end of the hook 21 is interlaced and hinged with the baffle 22; the reciprocating rotation of the hook 21 drives the baffle 22 to slide back and forth in an arc up and down along the guide rail 11, thereby making the baffle 22 block or avoid the port. This solves the risk of the adapter being contaminated by harsh environments such as external dust or foreign matter on the polished end surface 71 of the connector 7, while protecting users from eye damage caused by laser light.

[0041] The light shielding component of existing dust-proof and light-shielding adapters is a thin sheet roughly the same size as the optical port. These existing dust-proof and light-shielding adapters without dust caps do not indicate whether the optical fiber link is connected. The shielding plate 22 in this embodiment, as shown in Figure 6, features a connection indicator portion and a non-connection indicator portion. As shown in Figure 3, the non-connection indicator portion blocks laser light emitted from the port, while the connection indicator portion is illuminated by the laser when the connector 7 (shown in Figure 4) is connected to the port. The connection indicator portion is specifically formed by engraving the non-connection indicator portion with a translucent material. In this embodiment, the connection indicator portion is engraved with the word "ON." While shielding dust and light, shielding plate 22 also illuminates the connection indicator portion (i.e., the ON indicator) when the optical fiber link is connected, thereby determining whether the optical fiber link is connected. When the laser beam shines on the shielding plate, the ON indicator illuminates, indicating that the optical path is connected. Verifying the ON indicator on the shielding plate can only be performed when the connector is not inserted.

[0042] In this embodiment, the baffle 22 is designed to be a thin sheet that is the same size as the light outlet port of the sleeve plug 6. As shown in Figure 5, the baffle 22 fits the port of the sleeve plug 6 and can just seal the sleeve plug 6 to prevent dust from entering the adapter. It also contacts the polished end face 71 of the back connector 7, as shown in Figure 3, and at the same time blocks the light transmitted by the connector 7. The guide rail 11 of this embodiment is a guide groove. As shown in Figure 5, the opening of the guide groove does not extend to the bottom of the adapter, but extends to the lower edge of the sleeve plug 6. When the baffle 22 slides down to this position, it can just fit and seal the sleeve plug 6. The hook 21 is set in the middle position of the front chamber of the frame. When the connector 7 is inserted into place, the unlocking buckle 72 needs to pop up and buckle the frame 1 to prevent the connector 7 from falling off. Avoid the space required for the unlocking buckle 72 to pop up when the connector 7 is inserted.

[0043] The dust-proof and light-shielding optical fiber adapter of this embodiment has the following beneficial effects:

[0044] The frame 1 is injection molded as a whole by plastic material. The frame 1 includes a first connection end (i.e., a receiving chamber), a second connection end (i.e., a receiving chamber), and an intermediate portion (i.e., a sleeve plug 6) connected between the first connection end and the second connection end. The first connection end is provided with an optical fiber connector insertion port, and the second connection end is also provided with an optical fiber connector insertion port. The adapter also includes an upper cover 3 that is detachably mounted on the upper opening position of the receiving chamber, wherein the upper cover 3 and the receiving chamber together form a closed cavity. Each shading component 2 also includes an elastic spring 4, the two ends of which are respectively supported on the upper surface of the hook 21 and the lower surface of the upper cover 3. The lower surface of the hook 21 contacts and cooperates with the connector 7 in the insertion port to drive the hook 21 to rotate and swing upward. The lower surface of the hook 21 is protrudingly molded with an arched portion, and the arched portion is snap-fitted with an elastic fastener preset on the connector 7. Each side wall of each chamber of the frame 1 is provided with an arc-shaped guide groove (i.e., guide rail 11), and the two guide grooves are aligned. Guide blocks are formed on both sides of the baffle 22, which slide and fit with the guide grooves on both sides of the chamber. A driving arm is formed at the lower end of the hook 21, and a matching groove is formed on the baffle 22, and the end of the driving arm is embedded in the matching groove, wherein the driving arm can contact and fit with the upper top surface or lower bottom surface of the matching groove. The baffle 22 is made of translucent material, and the word "ON" (connection identification portion) is engraved on the front. When the optical fiber link is connected, the ON mark can be illuminated by the link's own light, thereby determining whether the optical fiber link is connected. The dust-proof and light-shielding adapter proposed in this embodiment has a simple structure, small size, and good light-shielding and dust-proof effects.

[0045] Comparative Example:

[0046] The hook of the traditional dustproof and light-shielding adapter is set at the front end of the front cavity of the frame, as shown in Figure 7. In order to avoid the space required for the unlocking buckle to pop up when the connector is inserted, the height of the adapter needs to be increased. The guide groove in this comparative example is a vertical guide groove, as shown in Figures 7 and 8. When the baffle moves vertically upward when the connector is inserted, it will interfere with the upper cover, so the height of the adapter needs to be increased. In this comparative example, a raised limit block is provided at the upper end of the baffle, as shown in Figures 7 and 9. When the baffle slides down and hits the upper edge of the sleeve plug, the baffle stops, so the size of the baffle will be larger than the sleeve plug port. When the baffle moves vertically upward, the height of the adapter needs to be increased so that the baffle will not interfere with the upper cover.

[0047] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For those skilled in the art of the present invention, it is possible to make several equivalent substitutions or obvious modifications without departing from the concept of the present invention, and the performance or use are the same, and all of them should be considered to fall within the scope of protection of the present invention.

Claims

1. A dustproof light-shielding adapter, comprising a frame and a light-shielding assembly, wherein the front end of the frame is internally formed with chambers arranged in a transverse manner and having an upward opening, the front end of the chamber is provided with a port for plugging and matching with a connector, and each chamber is provided with a light-shielding assembly, wherein the light-shielding assembly comprises a hook and a baffle, wherein: The side wall of the chamber is provided with a guide rail for limiting the vertical sliding of the baffle, and its characteristics are: the guide rail is an arc guide rail convex toward the opening direction of the chamber, the bottom of the guide rail is aligned with the bottom of the port, the upper end of the hook is hinged to the middle of the upper end surface of the chamber, and the lower end of the hook is interlaced and hinged with the baffle; the baffle is driven to slide back and forth up and down with the reciprocating rotation of the hook, so that the baffle blocks or avoids the port.

2. The dustproof and light-shielding adapter according to claim 1, characterized in that: It also includes an upper cover which is detachably mounted on the upper opening of the chamber, and the upper cover cooperates with the frame to form a closed cavity.

3. The dustproof and light-shielding adapter according to claim 2, characterized in that: The shading assembly further comprises an elastic spring sheet, two ends of which are respectively supported against the upper surface of the hook member and the surface of the frame facing the hook member.

4. The dustproof and light-shielding adapter according to claim 3, characterized in that: The lower surface of the hook member contacts and cooperates with the connecting member inserted into the port to drive the hook member to swing upwards, and a protruding arched portion is provided on the lower surface of the hook member.

5. The dustproof and light-shielding adapter according to claim 2, characterized in that: The upper cover is provided with an upper cover fixing piece, and the upper end of the frame is preset with a fixing part which cooperates with the upper cover fixing piece to realize fixing of the upper cover.

6. The dustproof and light-shielding adapter according to claim 1, characterized in that: The upper end of each hook member shares a hinge axis extending in the transverse direction and is hinged to the top position of the chamber.

7. The dustproof and light-shielding adapter according to claim 1, characterized in that: The baffle is made of a translucent material and includes a connection identification portion and a non-connection identification portion. The non-connection identification portion is used to shield the laser emitted from the port, and the connection identification portion is illuminated by the laser when the connector is connected to the port.

8. The dustproof and light-shielding adapter according to claim 1, characterized in that: The guide rails are guide grooves extending in vertical arcs on the side walls of the chamber, the two guide grooves are aligned with each other, and guide blocks are formed on both sides of the baffle plate and are respectively slidably matched with the guide grooves.

9. The dustproof and light-shielding adapter according to claim 1, characterized in that: A driving arm is formed at the lower end of the hook, and a matching groove is formed on the baffle. The end of the driving arm is embedded in the matching groove. The driving arm contacts and matches with the upper top surface or the lower bottom surface of the matching groove. The reciprocating rotation of the hook drives the baffle to slide up and down, so that the baffle blocks or avoids the port.

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