Mpo fiber optic circuit protector

Abstract

The utility model provides a kind of MPO optical fiber loop unit, including cover plate and the box body of upper end and front end opening;The inner wall of box body upper end is provided with step, cover plate is embedded in the inboard of box body upper end, and the outer edge of cover plate is supported on step;The middle part of the front end of cover plate is provided with protruding part, both sides of protruding part are provided with plug block, and the inner wall of both sides of the front end of box body is provided with slot, each plug block is inserted in the slot on corresponding position, and each plug block is in abutment with the inner top of slot;Both sides of protruding part form limiting gap, and each limiting gap is embedded with box body above corresponding slot and is limited;Cover plate and box body are clamped and fixed;The cover plate and box body in the utility model are clamped and fixed, compared with the mode that traditional adhesive is used to bond and fix cover plate and box body, it has the advantages that cover plate and box body are fixed conveniently, and cover plate and box body are fixed with high reliability and high stability.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber connection device technology, and more specifically, to an MPO optical fiber looper. Background Technology

[0002] An MPO (Medium-to-Optical Fiber Optic) return device is a small optical device used to connect two optical loops on the same port of an optical fiber device, enabling optical signal transmission within the device. Currently, commercially available MPO return devices include a cover plate and a housing with openings at the top and front. A step is provided on the inner wall of the upper end of the housing, and the cover plate is embedded in the inner side of the upper end of the housing. The outer edge of the cover plate is supported on the step, and the cover plate is glued to the housing. In this MPO return device structure, because the cover plate and housing are glued together, assembly is inconvenient, and during prolonged use, the glue may detach between the cover plate and housing, resulting in poor reliability of the connection. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an MPO fiber optic looper, in which the internal cover plate and the box body are snap-fitted together. Compared with the traditional method of using glue to bond and fix the cover plate and the box body, this method has the advantages of convenient fixing of the cover plate and the box body, as well as high reliability and high stability of the fixing of the cover plate and the box body.

[0004] This utility model provides an MPO fiber optic loopback device, including a cover plate and a housing with openings at the top and front ends; a step is provided on the inner wall of the upper end of the housing, the cover plate is embedded in the inner side of the upper end of the housing, and the outer edge of the cover plate is supported on the step; a protrusion is provided in the middle of the front end of the cover plate, and inserts are provided on both sides of the protrusion; slots are provided on the inner walls of both sides of the front end of the housing, and each insert is inserted into the slot at the corresponding position, and each insert abuts against the inner top of the slot; limiting notches are formed on both sides of the protrusion, and each limiting notch is fitted and limited by the housing located above the corresponding slot; the cover plate and the housing are snapped together and fixed.

[0005] By adopting the above-described structure, this utility model offers advantages such as convenient fixing of the cover plate and the box body, high reliability and stability compared to the traditional method of bonding the cover plate and the box body with glue, since the cover plate and the box body are fixed by snap-fit. In addition, since the insert on the cover plate and the slot on the box body are engaged and the cover plate is limited by the limiting notch, the snap-fit ​​fixing of the cover plate and the box body is further facilitated, and the reliability of the cover plate and the box body after snap-fit ​​fixing is improved.

[0006] In one possible implementation, a guide ramp is provided at the top of the front end of each insert block. The guide ramp is used to cooperate with the upper edge of the rear end of the slot to guide the insert block into the slot. With this structure, when the insert block is inserted into the slot, the guide ramp can cooperate with the upper edge of the rear end of the slot to guide the insert block into the slot, which can facilitate the assembly of the cover plate and the box.

[0007] In one possible implementation, two symmetrical hooks are provided at the front and rear of the cover plate, and a corresponding slot is provided on the inner wall of the box. Each hook engages with the slot at the corresponding position to fix the cover plate to the box. With this structure, the cover plate can be assembled with the box by engaging the hooks and slots, thus reliably fixing the cover plate to the box.

[0008] In one possible implementation, a positioning notch is formed on the outer edge of the cover plate at the location of each hook, and a positioning block is formed on the inner wall of the box above each slot. Each positioning notch engages with the positioning block at the corresponding position. With this structure, after the cover plate and the box are snapped together, each positioning block can engage with the positioning notch at the corresponding position, thereby further realizing the positioning of the cover plate and the box, and further improving the reliability of the cover plate and the box after they are snapped together.

[0009] In one possible implementation, a limiting block is provided at the bottom of the rear end of the cover plate, and a limiting groove is provided on the inner rear wall of the box body, with the limiting block fitting into the limiting groove. By adopting this structure, after the cover plate and the box body are snapped together and fixed, the limiting block can fit into the limiting groove, thereby achieving further limiting of the rear end of the cover plate and the rear end of the box body, thus further improving the reliability and stability of the cover plate and the box body after snapping together and fixing.

[0010] In one possible implementation, slits are formed on both sides of the front of the box, and a shrinkage portion corresponding to the slit is provided on the cover plate, with each shrinkage portion abutting against the slit at the corresponding position. With this structure, after the cover plate insert is engaged with the slot, the shrinkage portion can abut against the slit, thereby further limiting the position of the cover plate and the box, so that the cover plate can be snapped and fixed onto the box in the future. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is the first exploded view of this utility model; Figure 3 This is the second exploded view of this utility model. Detailed Implementation

[0012] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0013] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0014] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0015] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0016] See Figure 1-3 As shown in the figure, this application discloses an MPO fiber optic loopback device, including a cover plate 1 and a housing 2 with an opening at the top and front end; a step 21 is provided on the inner wall of the upper end of the housing 2, the cover plate 1 is embedded in the inner side of the upper end of the housing 2, and the outer edge of the cover plate 1 is supported on the step 21; a protrusion 11 is provided in the middle of the front end of the cover plate 1, and a plug 12 is provided on both sides of the protrusion 11; slots 22 are provided on both sides of the inner wall of the front end of the housing 2, and each plug 12 is inserted into the slot 22 at the corresponding position, and each plug 12 abuts against the inner top of the slot 22; limiting notches 13 are formed on both sides of the protrusion 11, and each limiting notch 13 is embedded and limited by the housing 2 located above the corresponding slot 22; the cover plate 1 and the housing 2 are snapped together and fixed.

[0017] Each insert 12 has a guide ramp 121 at the top of its front end. The guide ramp 121 is used to cooperate with the upper edge of the rear end of the slot 22 to guide the insert 12 into the slot 22. With this structure, when the insert is inserted into the slot, the guide ramp can cooperate with the upper edge of the rear end of the slot to guide the insert into the slot, which can facilitate the assembly of the cover and the box.

[0018] Two symmetrical hooks 14 are provided at the front and rear of the cover plate 1. The inner wall of the box body 2 is provided with a slot 23 corresponding to each hook 14. Each hook 14 engages with the slot 23 at the corresponding position to fix the cover plate 1 to the box body 2. With this structure, the cover plate can be assembled with the box body by engaging the hooks and slots, so that the cover plate can be reliably fixed to the box body.

[0019] A positioning notch 15 is formed on the outer edge of the cover plate 1 at the location of each hook 14, and a positioning block 24 is formed on the inner wall of the box body 2 above each slot 23. Each positioning notch 15 is engaged with the positioning block 24 at the corresponding position. With this structure, after the cover plate and the box body are engaged and fixed, each positioning block can be engaged with the positioning notch at the corresponding position, thereby further realizing the positioning of the cover plate and the box body, and further improving the reliability of the cover plate and the box body after being engaged and fixed.

[0020] A limiting block 16 is provided at the bottom of the rear end of the cover plate 1, and a limiting groove 25 is provided on the inner rear side of the box body 2. The limiting block 16 is fitted into the limiting groove 25. With this structure, after the cover plate and the box body are snapped together, the limiting block can fit into the limiting groove, thereby achieving further limiting of the rear end of the cover plate and the rear end of the box body, thereby further improving the reliability and stability of the cover plate and the box body after snapping together.

[0021] Both sides of the front of the box body 2 have a narrowing 26, and the cover plate 1 is provided with a shrinking part 17 corresponding to the narrowing 26. Each shrinking part 17 abuts against the narrowing 26 at the corresponding position. With this structure, after the cover plate insert is inserted into the slot, the shrinking part can abut against the narrowing, thereby further limiting the position of the cover plate and the box body, so that the cover plate can be snapped and fixed to the box body in the future.

[0022] When assembling the cover plate and the box body, first maintain a certain angle between the upper end of the cover plate and the box body to insert the two inserts into the corresponding slots. Then, press down the rear end of the cover plate to embed it into the inner side of the upper end of the box body and fix it in place. After the two inserts are inserted into the corresponding slots, each limiting notch can be fitted and limited by the box body above the corresponding slot, and both contraction parts can abut against the corresponding contraction openings. After pressing down the rear end of the cover plate to embed it into the inner side of the upper end of the box body, each hook can engage with the corresponding slot, and each positioning notch can engage with the corresponding positioning block. The limiting block can be fitted into the limiting groove.

[0023] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An MPO fiber optic loopback unit, comprising a cover plate (1) and a housing (2) with openings at the top and front; a step (21) is provided on the inner wall of the upper end of the housing (2), the cover plate (1) is embedded in the inner side of the upper end of the housing (2), and the outer edge of the cover plate (1) is supported on the step (21); characterized in that: The cover plate (1) has a protrusion (11) at the center of its front end. Both sides of the protrusion (11) are provided with inserts (12). The inner walls of both sides of the front end of the box body (2) are provided with slots (22). Each insert (12) is inserted into the slot (22) at the corresponding position. Each insert (12) abuts against the inner top of the slot (22). Limiting notches (13) are formed on both sides of the protrusion (11). Each limiting notch (13) is fitted and limited by the box body (2) located above the corresponding slot (22). The cover plate (1) and the box body (2) are snapped together and fixed.

2. The MPO fiber optic loopback device according to claim 1, characterized in that: Each of the inserts (12) has a guide ramp (121) at the top of its front end. The guide ramp (121) is used to cooperate with the upper edge of the rear end of the slot (22) to guide the insert (12) into the slot (22).

3. The MPO fiber optic loopback device according to claim 1 or 2, characterized in that: Two symmetrical hooks (14) are provided at the front and rear of the cover plate (1). The inner wall of the box body (2) is provided with a slot (23) corresponding to each hook (14). Each hook (14) is engaged with the slot (23) at the corresponding position to fix the cover plate (1) and the box body (2).

4. The MPO fiber optic loopback device according to claim 3, characterized in that: A positioning notch (15) is formed on the outer edge of the cover plate (1) at the location of each of the hooks (14), and a positioning block (24) is formed on the inner wall of the box (2) above each of the slots (23), and each positioning notch (15) is engaged with the positioning block (24) at the corresponding position.

5. The MPO fiber optic loopback device according to claim 3, characterized in that: A limiting block (16) is provided at the bottom of the rear end of the cover plate (1), and a limiting groove (25) is provided on the inner rear side of the box body (2). The limiting block (16) is fitted into the limiting groove (25).

6. The MPO fiber optic loopback device according to claim 1, 2, 4, or 5, characterized in that: Both sides of the front of the box body (2) are formed with slits (26), and the cover plate (1) is provided with shrinkage parts (17) corresponding to the slits (26). Each shrinkage part (17) abuts against the slit (26) at the corresponding position.

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