Unlocking mechanism for preventing unlocking failure and optical module

Abstract

The utility model relates to an unlocking mechanism for preventing unlocking failure, which comprises a structural member and a pull ring in sliding fit with the structural member, each ring arm of the pull ring is provided with a through hole close to an unlocking salient point, an inner elastic block is arranged between the ring arm and the structural member, and the inner elastic block comprises a plane section positioned between the unlocking salient point and the through hole, a notch wider than the unlocking protruding point is formed in the area, corresponding to the unlocking protruding point, of the plane section, and an opening of the notch faces the unlocking protruding point. The end, corresponding to the through hole, of the plane section is provided with an inclined section which is bent outwards, stretches into the through hole and does not stretch out of the side face of the structural part. An optical module comprises an unlocking mechanism for preventing unlocking failure. The cage has the advantages that the inner elastic block is additionally arranged between the ring arm and the structural part, even if the size of the unlocking protruding point is abnormal and unlocking cannot be achieved through the unlocking protruding point, the elastic piece on the cage can be ejected to the unlocking position due to the fact that the inner elastic block is triggered to rotate in the outward pulling process of the pull ring, the unlocking condition is achieved, and the phenomenon of unlocking failure is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of optical modules, and in particular to an unlocking mechanism and an optical module for preventing unlocking failure. Background Art

[0002] An optical module is a device that can convert optical signals into electrical signals and vice versa. It includes at least: a structural part and a pull ring. The structural part includes: a base and an upper cover covering the base. The two ring arms of the pull ring slide with the two sides of the structural part respectively, and a spring is arranged between each ring arm and the structural part along the sliding direction. The unlocking end of the ring arm has an unlocking protrusion.

[0003] The optical module is inserted into the cage. When unlocking, the pull ring is pulled outward to make it move outward on the structural member, and during the outward movement, the unlocking protrusion on the pull ring is used to push the spring piece on the cage outward by a predetermined size to achieve unlocking. When the size of the unlocking protrusion on the pull ring in the optical module is abnormal, the unlocking protrusion will not be able to push the spring piece on the cage outward by a sufficient size. At this time, the optical module fails to be unlocked and the optical module will continue to be locked in the cage.

[0004] In addition, when the optical module is inserted into the cage and is in a locked state, the cage's spring clip will hold up a small part of the optical module's structure above or below to prevent the module from being positioned abnormally, thereby causing performance abnormalities. When the cage is plugged in and out for a long time, the spring clip will deform, thereby damaging the structure and causing the cage's spring clip limit to fail. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an unlocking mechanism and an optical module for preventing unlocking failure, so as to overcome the deficiencies in the above-mentioned prior art.

[0006] The utility model solves the above-mentioned technical problems with a technical solution as follows: an unlocking mechanism to prevent unlocking failure, comprising: a structural member and a pull ring slidably matched with the structural member, a through hole is provided on each ring arm of the pull ring near the unlocking protrusion, an inner elastic block is arranged between the ring arm and the structural member, the inner elastic block comprises: a plane section between the unlocking protrusion and the through hole, a notch which is wider than the unlocking protrusion and opens toward the unlocking protrusion is provided on the plane section in a region corresponding to the unlocking protrusion, the end of the plane section has an inclined section which is bent outward in a region corresponding to the through hole and extends into the through hole and does not extend out of the side surface of the structural member, and during the process of pulling the pull ring outward to unlock, the ring arm presses the inclined section internally to make it gradually turn inward around the bending inflection point, and the spring piece on the cage is pushed to the unlocking position by the plane section which is gradually tilted outward synchronously.

[0007] The beneficial effect of the utility model is that during the process of pulling the pull ring outward to unlock, the ring arm will press the inclined section internally to make it gradually turn inward around the bending inflection point. At the same time, due to the inward rotation of the inclined section, the plane section will synchronously gradually warp outward, and when the plane section gradually warps outward, it will push the spring piece on the cage to the unlocking position. When unlocking, the end of the plane section close to the unlocking protrusion will warp outward beyond the unlocking protrusion, and the unlocking protrusion enters the notch. By adding an additional inner elastic block between the ring arm and the structural member, even if the unlocking protrusion is abnormally sized and cannot be unlocked by it, the rotation of the inner elastic block can be triggered during the process of pulling the pull ring outward to push the spring piece on the cage to the unlocking position, so as to achieve the unlocking condition and avoid the phenomenon of unlocking failure. In addition, in the non-unlocking state, the inner elastic block is hidden in the side of the structural member and will not extend out of the structural member at will. Therefore, when the optical module is inserted into the cage, it will not interfere with the insertion of the optical module, ensuring the smoothness of plugging and unplugging. At the same time, there is no risk of pulling the pull ring too much during unlocking to avoid the optical module being stuck in the cage.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the lower end surface of the plane section is lower than or flush with the lower end surface of the cage upper spring sheet, and the upper end surface of the plane section is higher than or flush with the upper end surface of the cage upper spring sheet.

[0010] The above method has the further beneficial effect of completely covering the width of the spring sheet on the cage, so that the spring sheet on the cage can be completely popped up, thereby avoiding damage to structural parts, preventing the optical module from failing to position and affecting performance.

[0011] Furthermore, the end surface of the plane segment close to the unlocking protrusion is a slope inclined from the outside to the inside.

[0012] A further beneficial effect of the above is that during the unlocking and resetting process, the plane segment can be prevented from interfering with the structural member.

[0013] Furthermore, the lower end surface of the unlocking end of the ring arm is lower than or flush with the lower end surface of the spring sheet on the cage, and the upper end surface of the unlocking end of the ring arm is higher than or flush with the upper end surface of the spring sheet on the cage.

[0014] Furthermore, a receiving groove is provided on the side of the structural member, and the plane section of the inner elastic block is located in the receiving groove.

[0015] Furthermore, the two sides of the structural member each have a recessed groove extending from the optical end thereof toward the gold finger end, and the two ring arms of the pull ring are respectively located in the two recessed grooves of the structural member and slideably cooperate with them in the length direction; the accommodating groove is opened in the recessed groove.

[0016] Based on the above technical solution, the utility model also provides an optical module, including an unlocking mechanism for preventing unlocking failure.

[0017] The above method has the further beneficial effect of effectively avoiding unlocking failure and ensuring the reliability of plugging and unplugging the optical module and the cage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the unlocking mechanism for preventing unlocking failure in the utility model;

[0019] Figure 2 This is a structural diagram of the inner elastic block being triggered to rotate during the pull ring outward pulling process;

[0020] Figure 3 for Figure 1 A partial enlarged view after removing the upper cover of the structural part;

[0021] Figure 4 This is the layout diagram of the pull ring and the inner elastic block;

[0022] Figure 5 This is the structural diagram of the inner bullet block;

[0023] Figure 6 This is the assembly diagram of the light module and the cage.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1. Structural member, 110. Accommodating groove, 120. Recessed groove, 2. Pull ring, 210. Ring arm, 211. Unlocking protrusion, 212. Through hole, 3. Inner elastic block, 310. Plane section, 311. Notch, 320. Inclined section, 4. Cage, 410. Shrapnel. DETAILED DESCRIPTION

[0026] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0027] Example 1

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, an unlocking mechanism for preventing unlocking failure comprises: a structural member 1 and a pull ring 2, the pull ring 2 has two ring arms 210, and the two ring arms 210 of the pull ring 2 are respectively slidably matched with the two sides of the structural member 1 in the length direction, and the unlocking end of the ring arm 210 has an unlocking convex point 211, and the two ring arms 210 are hidden in the side of the structural member 1. This part is the prior art, so it is not described in detail here;

[0029] A through hole 212 is provided on each ring arm 210 of the pull ring 2 near the unlocking protrusion 211, and an inner elastic block 3 is arranged between the ring arm 210 and the structural member 1, and the inner elastic block 3 includes: a plane section 310 located between the unlocking protrusion 211 and the through hole 212, a notch 311 wider than the unlocking protrusion 211 and opening toward the unlocking protrusion 211 is provided on the plane section 310 in the area corresponding to the unlocking protrusion 211, and the end of the plane section 310 has an inclined section 320 that is bent outward and extends into the through hole 212 and does not extend out of the side of the structural member 1 in the area corresponding to the through hole 212, that is, the value range of the angle θ between the plane section 310 and the inclined section 320 is: 90°<θ<180°;

[0030] During the process of pulling the pull ring 2 outward to unlock, the ring arm 210 will press the inclined section 320 inward to make it (the inclined section 320) gradually turn inward around the bending inflection point (the bending point between the plane section 310 and the inclined section 320). At the same time, since the inclined section 320 turns inward, the plane section 310 will gradually tilt outward synchronously, and when the plane section 310 gradually tilts outward, it will push the spring piece 410 on the cage 4 to the unlocking position. When unlocking, the end of the plane section 310 close to the unlocking protrusion 211 will tilt outward beyond the unlocking protrusion 211, and the unlocking protrusion 211 will enter the notch 311. By adding an additional inner elastic block 3 between the ring arm 210 and the structural member 1, even if the unlocking protrusion 211 is abnormally sized and cannot be unlocked by it, the rotation of the inner elastic block 3 can be triggered during the process of pulling the pull ring 2 outward to push the spring piece 410 on the cage 4 to the unlocking position, so as to meet the unlocking conditions and avoid the phenomenon of unlocking failure.

[0031] Example 2

[0032] like Figure 2 , Figure 5 , Figure 6 As shown, this embodiment is a further improvement on the basis of embodiment 1, and the details are as follows:

[0033] The lower end surface of the plane section 310 is lower than or flush with the lower end surface of the spring piece 410 on the cage 4, and the upper end surface of the plane section 310 is higher than or flush with the upper end surface of the spring piece 410 on the cage 4. The spring piece 410 on the cage 4 can be fully bounced up to avoid damaging the structural member 1 and preventing the positioning failure of the structural member 1.

[0034] Example 3

[0035] like Figure 2 , Figure 3 , Figure 5 As shown, this embodiment is a further improvement on the basis of Embodiment 1 or 2, and the details are as follows:

[0036] The end surface of the plane section 310 close to the unlocking protrusion 211 is an inclined surface inclined from outside to inside, which can prevent the plane section 310 from interfering with the structural member 1 during the unlocking and resetting process.

[0037] Example 4

[0038] like Figure 3 As shown, this embodiment is a further improvement on the basis of Embodiment 1, 2 or 3, and the details are as follows:

[0039] A receiving groove 110 is provided on the side of the structural member 1 , and the plane section 310 of the inner elastic block 3 is located in the receiving groove 110 .

[0040] Furthermore: the two side surfaces of the structural member 1 each have a recessed groove 120 extending from its optical end toward the gold finger end, and the two ring arms 210 of the pull ring 2 are respectively located in the two recessed grooves 120 of the structural member 1 and slidingly cooperate with it in the length direction, and the two ring arms 210 are hidden in the side surface of the structural member 1, and the accommodating groove 110 is opened in the recessed groove 120.

[0041] Example 5

[0042] An optical module comprises an unlocking mechanism for preventing unlocking failure as described in any one of embodiments 1 to 4.

[0043] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An unlocking mechanism for preventing unlocking failure, comprising: A structural member (1) and a pull ring (2) that slidably cooperates with the structural member (1), characterized in that each ring arm (210) of the pull ring (2) is provided with a through hole (212) near an unlocking protrusion (211), an inner elastic block (3) is arranged between the ring arm (210) and the structural member (1), and the inner elastic block (3) comprises: a plane section (310) located between the unlocking protrusion (211) and the through hole (212), a plane section (310) is provided with a region corresponding to the unlocking protrusion (211) and a region corresponding to the unlocking protrusion (211) and a region corresponding to the unlocking protrusion (211) The protrusion (211) is wide and has a notch (311) opening toward the unlocking protrusion (211); the end of the plane section (310) has an inclined section (320) in the area corresponding to the through hole (212) that bends outward and extends into the through hole (212) and does not extend out of the side of the structural member (1); during the process of pulling the pull ring (2) outward to unlock, the ring arm (210) presses the inclined section (320) inward to gradually turn inward around the bending inflection point, and the plane section (310) that is gradually tilted outward at the same time pushes the spring piece (410) on the cage (4) to the unlocking position.

2. The unlocking mechanism for preventing unlocking failure according to claim 1, characterized in that: The lower end surface of the plane section (310) is lower than or flush with the lower end surface of the spring sheet (410) on the cage (4), and the upper end surface of the plane section (310) is higher than or flush with the upper end surface of the spring sheet (410) on the cage (4).

3. The unlocking mechanism for preventing unlocking failure according to claim 1, characterized in that: The end surface of the plane section (310) close to the unlocking protrusion (211) is a sloped surface inclined from outside to inside.

4. The unlocking mechanism for preventing unlocking failure according to claim 1, characterized in that: A receiving groove (110) is provided on the side of the structural member (1), and the plane section (310) of the inner elastic block (3) is located in the receiving groove (110).

5. The unlocking mechanism for preventing unlocking failure according to claim 4, characterized in that: The two side surfaces of the structural component (1) each have a recessed groove (120) extending from the optical end thereof toward the gold finger end; the two ring arms (210) of the pull ring (2) are respectively located in the two recessed grooves (120) of the structural component (1) and are slidably matched therewith in the length direction; the accommodating groove (110) is opened in the recessed groove (120).

6. An optical module, characterized in that: The invention comprises an unlocking mechanism for preventing unlocking failure as claimed in any one of claims 1 to 5.

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