WO2016086668A1

WO2016086668A1 - Dust cover and adapter

Info

Publication number: WO2016086668A1
Application number: PCT/CN2015/084250
Authority: WO
Inventors: 阎雄伟; 李媛媛
Original assignee: 华为技术有限公司
Priority date: 2014-12-06
Filing date: 2015-07-16
Publication date: 2016-06-09

Abstract

A dust cover (10), comprising a cover body (14), a frame (12) and an elastic element (16); an inner portion of the frame (12) being provided with a channel (121) having an opening at each of two ends; the frame (12) comprising a connecting portion (122) and a joint portion (124); the connecting portion (122) and the joint portion (124) being connected to each other and inner portions thereof being in communication with each other; the connecting portion (122) being used for connecting an adapter body (20); the joint portion (124) being used for accommodating a plug; the plug being accommodated in the frame (12) and fitted to the adapter body (20); the cover body (14) is disposed within the inner portion of the frame (12) and rotatably connected to an inner wall of the joint portion (124); the elastic element (16) being elastically connected between the joint portion (124) and the cover body (14); the cover body (14) being rotated with respect to the frame (12) to close or open the inner channel (121) of the frame (12).

Description

Dust cover and adapter

Technical field

The present invention relates to the field of optical fiber adapters, and more particularly to a dust cover and an adapter having the same.

Background technique

With the continuous development of science and technology, the computer network industry is also constantly developing and progressing. In recent years, in order to realize the flexible connection between different devices and systems, an early development of a device for active connection between optical fibers and optical fibers is called a fiber optic adapter. The main applications include communication, local area network (LAN), Fiber To The Home (FTTH), high quality video transmission, fiber optic sensing, test instrumentation, Community Antenna Television (CATV), etc. The existing fiber optic adapters generally use plug-in plastic plugs for protection and dustproofing at the ports. However, due to the use and construction process, the interfaces at one end are often in multiple plug-and-plug states, and the ceramic bushings in the adapters are strictly required. Do a good job of dust protection. If the port is not in use, it needs to be covered with a protective cap, especially in a machine room with poor construction environment. If dust enters the casing, it will directly affect its connection loss, which will indirectly affect the transmission distance. important. At the same time that fiber-to-the-home is becoming more and more popular, the fiber-optic adapter will be installed on each fiber-optic access panel of each household, as a network interface for daily use, and the number of plug-ins is many. For the optical fiber transmission work, such as the eye-view port The laser at work will burn the eyes, so it is necessary to cover the protective cap of the port in time. However, the existing plug-in protective cap also has the following two disadvantages: First, it is easy to lose; Second, it is easy to be neglected, and it is not timely to pull out the connector fashion.

Summary of the invention

The technical problem to be solved by the present invention is to provide a dust cover with high reliability.

In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:

In one aspect, the present invention provides a dust cover comprising a cover body, a frame body and an elastic member, wherein the frame body has a channel formed at both ends, the frame body comprising a connection portion and an interface portion, the connection portion and the connection portion The interface portions are connected to each other and communicated with each other, the connection portion is for connecting with an adapter body for providing plug insertion, the plug is inserted into the frame body and the adapter body is matched, a cover body is disposed inside the frame body and rotatably connected to the interface portion a wall, the elastic member is elastically connected between the interface portion and the cover body, and the cover body is rotated relative to the frame body to close or open an internal passage of the frame body.

Wherein the connecting portion comprises a main body, a cantilever and a hook, one side of the cantilever is connected to the main body, the other side of the cantilever is separated from the main body by a gap, and the hook is located at the cantilever The inner side of the free end, when the connecting portion is connected to the adapter body, the hook cooperates with the catching portion on the adapter body.

The interface portion of the frame body includes a bottom wall, a top wall, and a pair of side walls connected between the bottom wall and the top wall, and the pair of side walls are respectively provided with a shaft hole. The pair of shaft holes are respectively located at one end of the pair of side walls adjacent to the bottom wall; the cover body comprises a bottom edge, a top edge and a pair of side edges connected between the bottom edge and the top edge. a rotating shaft is respectively protruded from the opposite sides, and the opposite rotating shafts are respectively located at one ends of the opposite sides near the bottom side; the opposite rotating shafts cooperate with the pair of shaft holes to realize the cover body and the seat The rotating body is connected to the frame; the cover body is provided with a pair of slots, and the pair of slots are respectively adjacent to the pair of rotating shafts, and the pair of slots extend from the bottom edge to the middle of the cover body.

Wherein the cover body comprises a first surface and a second surface, when the cover body closes an internal passage of the frame body, the first surface faces a side of the connecting portion, and the second surface faces The opening side of the interface portion is provided with a groove on the second surface, and the groove is used to prevent the cover body from contacting the ferrule of the plug when the plug is inserted into the interface portion.

Wherein, the elastic element is a torsion spring, the cover body is further provided with a positioning post, the positioning post is located at the bottom edge, and the torsion spring comprises a curling portion, a first abutting edge and a second abutting edge, The curling portion is positioned on the positioning post, the second abutting edge is abutting against the inner surface of the frame body, the cover body is provided with a positioning slot, and the positioning slot is adjacent to the positioning post. The first abutting edge is fastened in the positioning slot.

The first surface is provided with a receiving slot, the receiving slot extends from the bottom edge toward the top edge, and the positioning post faces the opening of the receiving slot on the bottom edge When the cover body opens the inner passage of the frame body, the cover body is attached to the inner surface of the frame body, and the second abutting edge of the torsion spring is received in the receiving groove.

Wherein, the inner wall of the interface portion is provided with a step portion, the step portion includes a blocking surface, the blocking surface faces the direction of the connecting portion, when the cover body closes the internal passage of the frame body, The cover body abuts against the blocking surface.

Wherein, the blocking surface is provided with a buffer layer, or a surface of the cover body on which the blocking surface abuts is provided with a buffer layer.

The frame body includes a front end surface, the front end surface is located at an open end of the interface portion, and the interface portion includes a bottom wall, a top wall, and a pair connected between the bottom wall and the top wall a side wall that is perpendicular to the bottom wall, the top wall, and the pair of side walls.

The frame body includes a front end surface, the front end surface is located at an open end of the interface portion, and the interface portion includes a bottom wall, a top wall, and a pair connected between the bottom wall and the top wall a side wall, the front end surface being perpendicular to the pair of side walls, and the front end surface being a slope inclined with respect to the bottom wall and the top wall.

The dust cover further includes a guiding portion, the guiding portion is located outside the frame body and protrudes from the front end surface, and the guiding portion is parallel or coplanar with the top wall.

In another aspect, the present invention provides an adapter, the adapter body, and the dust cover of any one of the preceding claims, wherein the dust cover is disposed at a socket of the adapter body, and the dust cover is disposed The connecting portion is connected to the adapter body, and the cover of the dust cover can block the socket.

Wherein, the adapter body is a square connector SC fiber adapter.

The dust cover and the adapter provided by the invention are suitable for the conventional universal SC fiber adapter, and only need to fit the connection portion outside the adapter body. It ensures that the optical and mechanical properties of the adapter body are not affected. Moreover, the cover of the dust cover of the present invention is disposed inside the frame, and the mounting structure between the cover and the cover and the frame is not visible from the outside, so that the dust cover has a small size, a neat appearance, and an attractive appearance. advantage.

DRAWINGS

In order to more clearly illustrate the technical solutions of the present invention, the drawings used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention, which are common in the art. For the skilled person, other drawings can be obtained as shown in these drawings without any creative work.

1 is a side view of an adapter provided by an embodiment of the present invention;

Figure 2 is a cross-sectional view of the adapter shown in Figure 1;

Figure 3 is a cross-sectional view of the adapter of Figure 1 in another direction;

4 is a schematic view showing the dust cover of the adapter shown in FIG. 1 separated from the adapter body;

5 is a side view of a dust cover with a built-in cover according to an embodiment of the present invention;

Figure 6 is a cross-sectional view of the dust cover shown in Figure 5;

Figure 7 is an exploded view of the dust cover shown in Figure 5;

8 is a side view of a frame of a dust cover according to an embodiment of the present invention;

Figure 9 is a cross-sectional view of the frame shown in Figure 8;

Figure 10 is a cross-sectional view of the frame shown in Figure 8 in another direction;

11 is a front elevational view of a cover of a dust cover according to an embodiment of the present invention;

Figure 12 is a side view of the cover body shown in Figure 11;

FIG. 13 is a schematic diagram of an elastic member of a dust cover according to an embodiment of the present invention; FIG.

Figure 14 is a schematic cross-sectional view showing the external plug inserted into the dust cover;

15 is a schematic view of a frame of a dust cover according to an embodiment of the present invention;

FIG. 16 is a schematic diagram of a frame of a dust cover according to another embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings.

The present invention relates to a dust cover 10 and an adapter 100 with the dust cover 10. Referring to FIG. 1 to FIG. 4, the dust cover 10 is disposed at the socket 21 of the adapter body 20 for shielding the socket. 21, can prevent dust and harmful lasers. The external plug is inserted into the dust cover 10 and inserted into the socket 21 of the adapter body 20 to effect data transmission between the plug and the adapter body 20. In the embodiment, the adapter body 20 is a square connector (SC) fiber optic adapter 100.

Referring to FIGS. 5-7 , the dust cover 10 includes a frame 12 , a cover 14 and an elastic member 16 .

8 to 10 are schematic views showing the structure of the frame 12. Inside the frame 12, a channel 121 having openings at both ends is formed. Specifically, the frame 12 has a sleeve structure having a square cross section. The box The body 12 includes a connecting portion 122 and an interface portion 124. The connecting portion 122 and the interface portion 124 are connected to each other and communicate with each other. The connecting portion 122 is for connecting with the adapter body 20. In an embodiment, the connecting portion The sleeve 122 is disposed on the outer surface of the adapter body 20, and the inner wall of the connecting portion 122 is attached to the outer surface of the adapter body 20, as shown in FIG. 2, and can be realized by the friction between the inner wall of the connecting portion 122 and the outer surface of the adapter body 20. A fixed connection between the dust cover 10 and the adapter body 20. The interface portion 124 is for providing a plug insertion, the plug is inserted into the frame 12 and the adapter body 20 is mated.

The frame 12 can be integrally formed by a single material or by a two-shot injection molding method. The connecting portion 122 and the interface portion 124 are made of different materials. The connecting portion 122 can be made of an elastically deformed silicone material, and the interface portion 124 is made of a hard material, so that the connecting portion 122 can be sleeved outside the adapter body 20 by its elastic deformability. The surface can be fixed to the adapter body 20.

As shown in FIG. 6 , the cover 14 is disposed inside the frame 12 and is rotatably connected to an inner wall of the interface portion 124 . The elastic member 16 is elastically coupled between the interface portion 124 and the cover 14. The rotation of the cover 14 relative to the frame 12 can close or open the internal passage 121 of the frame 12. Fig. 6 shows a state in which no plug is inserted. In this state, the cover 14 closes the internal passage 121 of the frame 12 by the action of the elastic member 16. When a plug is inserted, the plug pushes the top cover 14 so that the cover 14 rotates relative to the frame 12, opening the internal passage 121 of the frame 12 for the plug to be inserted into the adapter body 20, and at the same time, the elastic member 16 is elastically deformed. When the plug is pulled out, the elastic member 16 drives the cover 14 back to close the internal passage 121 of the frame 12.

The dust cover 10 of the present invention is applied to a conventional general-purpose SC fiber optic adapter, and only the connecting portion 122 needs to be placed outside the adapter body 20. The fixed connection between the connecting portion 122 and the adapter body 20 can be fixedly connected between the connecting portion 122 and the adapter body 20 by means of screw fixing, snap fixing, glue preparation or the like. When the connection between the connecting portion 122 and the adapter 100 is realized by screw and glue fixing, the structure of the adapter body 20 does not need to be changed, and when the fastening is fixed by the snapping method, it is only necessary to increase the holding portion on the outer surface of the adapter body 20. The structure does not change the structure of the other portions of the adapter body 20, so that the optical performance and mechanical properties of the adapter body 20 can be ensured.

Moreover, the cover 14 of the dust cover 10 of the present invention is provided inside the frame 12, and the mounting structure between the cover 14 and the cover 14 and the frame 12 is not visible from the outside, so that the dust cover 10 has a volume. Small, clean and beautiful appearance.

In one embodiment, the dust cover 10 and the adapter body 20 are connected and fixed by fastening. The specific structure is as follows: Referring to FIG. 8 to FIG. 10 , the connecting portion 122 includes a main body 1222 , and

cantilever

1224 and 1226 . One side of the cantilever 1224 is coupled to the body 1222, and the other side of the cantilever 1224 is spaced apart from the body 1222 by a gap C, which is located inside the free end of the cantilever 1224, specifically, the cantilever The 1224 has a rectangular shape, one side of which is connected to the main body 1222, and the other three sides are separated from the main body 1222 by a gap. The free end of the cantilever 1224 is located on one side of the connecting

body

1222, and 1226 is disposed inside the free end of the cantilever 1224. When the connecting portion 122 is coupled to the adapter body 20, the cantilever 1224 is elastically deformed such that the 1226 cooperates with the catch portion 22 on the adapter body 20, as shown in FIGS. 3 and 4. Show.

The specific structure of the latching portion 22 on the adapter body 20 is as follows: Referring to FIG. 4, the outer surface of the side wall of the adapter body 20 is provided with a stopper 222, and the two sides of the stopper 222 form recessed portions 221 and 223. During the installation of the dust cover 10 to the adapter body 20, after the 1226 enters one of the recesses 221, the stopper 222 is encountered, and then the stopper 222 forces the cantilever 1224 to elastically deform, so that the 1226 passes the block. The block 222 also falls into the other recessed portion 223, and the stopper 222 is caught in the gap C between the 1226 and the main body 1222 of the connecting portion 122. The stopper 222 blocks the 1226 to prevent the dust cover 10 from coming off the adapter main body 20.

As shown in FIG. 8 and FIG. 9 , the interface portion 124 of the frame 12 includes a bottom wall 1241 , a top wall 1243 , and a pair of side walls 1242 connected between the bottom wall 1241 and the top wall 1243 . The pair of side walls 1242 are respectively provided with shaft holes 1246, and the pair of shaft holes 1246 are respectively located at one ends of the pair of side walls 1242 adjacent to the bottom wall 1241.

Referring to FIGS. 11 and 12, the cover 14 includes a bottom edge 141, a top edge 143, and a pair of side edges 142 connected between the bottom edge 141 and the top edge 143. A rotating shaft 145 is respectively protruded, and the pair of rotating shafts 145 are respectively located at one ends of the pair of side edges 142 near the bottom side 141. The pair of rotating shafts 145 cooperate with the pair of shaft holes 1246 to achieve a rotational connection between the cover body 14 and the frame body 12. The cover 14 is provided with a pair of slots 146, The pair of slots 146 are respectively adjacent to the pair of rotating shafts 145. The split slots 146 extend from the bottom edge 141 to the middle of the cover body 14. The slots 146 are disposed so that the portion of the rotating shaft 145 can face the slotted portion The direction of the 146 is elastically offset, and the cover body 14 can be easily attached to the frame body 12. During the installation process, the pair of rotating shafts 145 can be elastically deformed in the direction of the slot 146 under the action of an external force. The shaft 145 is forced into the shaft hole 1246 on the frame 12.

The cover 14 includes a first surface 147 and a second surface 148. When the cover 14 closes the internal passage 121 of the frame 12, the cover 14 is inclined with respect to the top wall 1243 and the bottom wall 1241 of the frame 12. The first surface 147 faces one side of the connecting portion 122, the second surface 148 faces the opening side of the interface portion 124, and the second surface 148 is provided with a recess 1482, and the recess 1482 is provided. In the middle of the second surface 148. Referring to FIG. 14, the plug 30 includes a sleeve 32 and a ferrule 34. The ferrule 34 is mounted at a central position of the sleeve 32 and extends out of the sleeve 32. The ferrule 34 is used for connection with the adapter body 20 for data transmission. During insertion of the plug 30, the sleeve 32 first contacts the second surface 148 of the cover 14. Since the cover 14 is inclined relative to the top wall 1243 and the bottom wall 1241 of the frame 12, the sleeve 32 of the plug 30 contacts. To the portion of the second surface 148 near the bottom edge 141 of the cover 14, at this point, the ferrule 34 faces the recess 1482, but remains between the ferrule 34 and the bottom of the recess 1482 due to the presence of the recess 1482. The ferrule 34 and the cover 14 are not in contact with each other. That is, when the plug 30 is inserted into the interface portion 124, the recess 1482 is for preventing the cover 14 from contacting the ferrule 34 of the plug 30. Therefore, the dust cover 10 of the present invention can prevent the end surface of the ferrule 34 from being touched, and can avoid signal interference caused by the end face of the ferrule 34 being touched.

Referring to FIG. 13 , the elastic member 16 is a torsion spring, and the torsion spring includes a curling portion 162 , a first abutting edge 164 and a second abutting edge 166 . As shown in FIG. 12 , the cover 14 is further provided with a positioning post 149 , the positioning post 149 is located at the bottom edge 141 , and the curling portion 162 is positioned on the positioning post 149 . The cover body 14 is provided with a positioning slot 1492. The positioning slot 1492 is adjacent to the positioning post 149. The first abutting edge 164 is locked in the positioning slot 1492. The second abutment The edge 166 abuts against the inner lower surface of the frame 12. Further, the first surface 147 is provided with a receiving groove 1472. The receiving groove 1472 extends from the bottom edge 141 toward the top edge 143, and the positioning post 149 faces the receiving slot. An opening in the bottom edge 141 of the cover 141, when the cover 14 opens the internal passage of the frame 12, the cover The body 14 is attached to the inner surface of the frame body 12, and the receiving groove 1472 is configured to receive the torsion spring when the first surface 147 is flat with the inner lower surface of the frame body 12 when the plug is fully inserted into the adapter body. The second abutting edge 166.

Referring to FIGS. 3 and 10 , the inner wall of the interface portion 124 is provided with a step portion 1248 including a blocking surface 1249 facing the direction of the connecting portion 122 when the When the cover 14 closes the internal passage 121 of the frame 12, the cover 14 abuts against the stop surface 1249. Specifically, the four sides of the cover 14 (bottom edge, top edge, and pair) The sides are all coincident with the stop faces 1249. The step portion 1248 is blocked on the outer side of the cover body 14, which effectively solves the problem of dust leakage and light leakage caused by the installation gap between the cover body 14 and the frame body 12. The arrangement of the step portion 1248 enhances the dust cover of the present invention. 10 dustproof effect.

A buffer layer (not shown) is disposed on the stop surface 1249, or a buffer layer is disposed on a surface of the cover 14 where the stop surface 1249 abuts. The provision of the buffer layer can prevent noise during the process of the dust cover 10 coming into contact with the frame 12. The material of the buffer layer is an elastic material such as foam or rubber. The buffer layer may be fixed to the stop surface 1249 or the surface of the cover 14 on which the stop surface 1249 abuts. It is also possible to integrally form the frame body 12 or the lid body 14 by means of two-shot injection molding.

The front end surface of the frame 12 of the dust cover 10 provided by the present invention can be designed into different structures according to different needs.

In the first embodiment, as shown in FIG. 8 , the frame body 12 includes a front end surface 126 at an open end of the interface portion 124 , and the interface portion 124 includes a bottom wall 1241 and a top wall. 1243 and a pair of side walls 1242 connected between the bottom wall 1241 and the top wall 1243. The front end surface 126 is perpendicular to the bottom wall 1241, the top wall 1243 and the pair of side walls 1242.

In the second embodiment, as shown in FIG. 15, the frame 12 includes a front end surface 126, the front end surface 126 is located at the open end of the interface portion 124, and the interface portion 124 includes a bottom wall 1241 and a top wall. 1243 and a pair of side walls 1242 connected between the bottom wall 1241 and the top wall 1243, the front end surface 126 is perpendicular to the pair of side walls 1242, and the front end surface 126 is opposite to the bottom wall 1241 and a sloped surface of the top wall 1243. In the present embodiment, the size of the top wall 1243 is smaller than the bottom wall 1241. The design of the inclined front end face 126 is advantageous for increasing the pull-out insertion Handheld area for the first 30 hours, easy to plug and unplug.

In the third embodiment, as shown in FIG. 16, the present embodiment is based on the second embodiment, in which the structure of the guide portion 128 is added, and the guide portion 128 is located outside the frame 12 and is protruded from The front end surface 126, the guiding portion 128 is parallel or coplanar with the top wall 1243. The provision of the guide 128 provides a guiding effect for the insertion of the plug 30.

The above is a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. It is the scope of protection of the present invention.

Claims

A dust cover (10), comprising: a cover body (14), a frame body (12) and an elastic member (16), wherein the frame body (12) internally forms a channel with open ends, the frame The body (12) includes a connecting portion (122) and an interface portion (124), the connecting portion (122) and the interface portion (124) are connected to each other and communicated with each other, and the connecting portion (122) is used for the adapter body (20) connected, the interface portion (124) is for providing plug insertion, the plug is inserted into the frame body (12) and cooperates with the adapter body (20), and the cover body (14) is provided The inner side of the frame body (12) is rotatably connected to the inner wall of the interface portion (124), and the elastic member (16) is elastically connected to the interface portion (124) and the cover body (14). Between the cover body (14) rotating relative to the frame body (12) can close or open the internal passage of the frame body (12).
The dust cover (10) according to claim 1, wherein said connecting portion (122) comprises a main body (1222), a cantilever (1224) and a hook (1226), one side of said cantilever (1224) Connected to the body (1222), the other side of the cantilever (1224) is separated from the body (1222) by a gap (C), and the hook (1226) is freely located in the cantilever (1224) On the inner side of the end, when the connecting portion (122) is coupled to the adapter body (20), the hook (1226) cooperates with the catch portion (22) on the adapter body (20).
The dust cover (10) according to claim 1, wherein the interface portion (124) of the frame body (12) comprises a bottom wall (1241), a top wall (1243), and a connection to the a pair of side walls (1242) between the bottom wall (1241) and the top wall (1243), wherein the pair of side walls (1242) are respectively provided with shaft holes (1246), and the shaft holes (1246) are respectively Located at one end of the pair of side walls (1242) adjacent to the bottom wall (1241); the cover (14) includes a bottom edge (141), a top edge (143), and a bottom edge (141) And a pair of side edges (142) between the top edge (143), the opposite side (142) respectively protruding a rotating shaft (145), wherein the opposite rotating shafts (145) are respectively located on the opposite sides (142) near one end of the bottom edge (141); the pair of rotating shafts (145) cooperate with the pair of shaft holes (1246) to realize the cover body (14) and the frame body (12) Rotating connection; the cover body (14) is provided with a pair of slots (146), respectively, the pair of slots (146) are respectively adjacent to the pair of rotating shafts (145), and the opposite slots (146) are from the Bottom edge (141) toward the cover The middle extension of (14).
A dust cover (10) according to claim 3, wherein said cover (14) comprises a first surface (147) and a second surface (148) when said cover (14) is closed When the inner passage (121) of the frame body (12) is described, the first surface (147) faces one side of the connecting portion (122), and the second surface (148) faces the interface portion (124) a recessed surface (1482) on the open side of the second surface (148), the recess (1482) is used to prevent the cover when the plug (30) is inserted into the interface portion (124) The body (14) contacts the ferrule (34) of the plug (30).
The dust cover (10) according to claim 4, wherein the elastic member (16) is a torsion spring, and the cover body (14) is further provided with a positioning post (149), the positioning post ( 149) located at the bottom edge (141), the torsion spring includes a curling portion (162), a first abutting edge (164) and a second abutting edge (166), and the curling portion (162) is positioned at the On the positioning post (149), the second abutting edge (166) abuts against the inner surface of the frame body (14), and the cover body (14) is provided with a positioning slot (1492), the positioning The slot (1492) is adjacent to the positioning post (149), and the first abutting edge (164) is locked in the positioning slot (1492).
The dust cover (10) according to claim 5, wherein the first surface (147) is provided with a receiving groove (1472), and the receiving groove (1472) is from the bottom edge (141) Extending toward the top edge (143), and the positioning post (149) faces the opening of the receiving groove (1472) on the bottom edge (141) when the cover (14) is opened The cover body (14) is attached to the inner surface of the frame body (12), and the second abutting edge (166) of the torsion spring is received in the inner passage of the frame body (12). The receiving groove (1472) is inside.
The dust cover (10) according to claim 1, wherein an inner wall of the interface portion (124) is provided with a step portion (1248), and the step portion (1248) includes a stop surface (1249). The blocking surface (1249) faces the connecting portion (122), and when the cover body (14) closes the internal passage (121) of the frame body (12), the cover body (14) Abutting the stop surface (1249).
The dust cover (10) according to claim 7, wherein the blocking surface (1249) is provided with a buffer layer, or the blocking surface (1249) of the cover body (14) is offset. The connected surface is provided with a buffer layer.
The dust cover (10) according to claim 1, wherein the frame body (14) includes a front end surface (126), and the front end surface (126) is located at an open end of the interface portion (124) The interface portion (124) includes a bottom wall (1241), a top wall (1243), and a pair of side walls (1242) connected between the bottom wall and the top wall, the front end surface (126) Vertical to the bottom wall (1241), the top wall (1243), and the pair of side walls (1242).
The dust cover (10) according to claim 1, wherein the frame body (14) includes a front end surface (126), and the front end surface (126) is located at an open end of the interface portion (124) The interface portion (124) includes a bottom wall (1241), a top wall (1243), and a pair of side walls (1242) connected between the bottom wall and the top wall, the front end surface (126) It is perpendicular to the pair of side walls (1242), and the front end face (126) is a slope that is inclined with respect to the bottom wall (1241) and the top wall (1243).
The dust cover (10) according to claim 10, wherein the dust cover (10) further comprises a guiding portion (128), wherein the guiding portion (128) is located at the frame body (12) The outer side is protruded from the front end surface (126), and the guiding portion (128) is parallel or coplanar with the top wall (1243).
An adapter, characterized in that the adapter body and the dust cover according to any one of claims 1 to 11, the dust cover is disposed at a socket of the adapter body, and the dust cover is The connecting portion is connected to the adapter body, and the cover of the dust cover can block the socket.
The adapter of claim 12 wherein said adapter body is Square connector SC fiber optic adapter.