Optical module pull ring unlocking device and method

Abstract

The present invention discloses a pull ring unlocking device for an optical module, comprising a pull ring assembly, an unlocking pressure plate, a base, and an upper cover, which are detachably installed from top to bottom. The front end of the base is fixed with a first optical port and a stopper from front to back. The unlocking pressure plate includes a third optical port. The pull ring assembly includes a sheet metal bolt plate. The third optical port covers the first optical port and contacts the stopper. The sheet metal bolt plate covers the third optical port and contacts the stopper. The first U-shaped flange extends upward and hooks the flange through hole. The second U-shaped flange extends downward through a small U-shaped opening and is inserted into the flange groove. In the present invention, by pulling or pushing the handle, an S-shaped lock is formed between the first U-shaped flange and the second U-shaped flange to lock the sheet metal bolt plate and the third optical port, or by disassembling the S-shaped lock to unlock the sheet metal bolt plate and the third optical port, the pull ring assembly is installed or removed relative to the unlocking pressure plate.

Description

Technical Field

[0001] The present invention relates to the technical field of optical module unlocking, and in particular to an optical module pull ring unlocking device and method. Background Art

[0002] Different colored pull tabs on an optical module represent different transmission distances. Because different customers have varying transmission distance requirements for optical modules, the same optical module often needs to switch between different colored pull tabs. Currently, most optical modules on the market require the top cover or base to be removed before replacing the pull tabs. However, this not only consumes a lot of assembly time and results in significant waste of heat dissipation materials, but also requires additional testing time for retesting. Summary of the Invention

[0003] The present invention provides a pull-ring unlocking device and method for an optical module that allows for faster and more efficient replacement and assembly, and can solve at least one of the above-mentioned technical problems.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] An optical module pull ring unlocking device comprises a pull ring assembly, an unlocking pressure plate, a base and an upper cover which are detachably installed in sequence from top to bottom;

[0006] The front end of the base is fixed with a first optical opening and a stop platform in sequence from front to back, the unlocking pressure plate includes a third optical opening, the pull ring assembly includes a sheet metal bolt plate, the third optical opening is covered outside the first optical opening and abuts against the stop platform, the sheet metal bolt plate is pressed on the third optical opening and abuts against the stop platform;

[0007] The first optical opening is provided with a spring groove, the third optical opening is provided with a large U-shaped opening and a small U-shaped opening, the end of the third optical opening is provided with a first U-shaped flange that rolls up, the sheet metal bolt pull plate is provided with a spring through hole and a flange through hole, and the ends of the sheet metal bolt pull plate are respectively provided with a second U-shaped flange that rolls down and a spring stop arm that folds down;

[0008] It also includes a reset spring, which can pass through the spring through hole and the large U-shaped opening and be taken out or put into the spring groove. The spring stop arm passes through the large U-shaped opening and the spring groove downward in sequence and squeezes into between the reset spring and the stop platform. The first U-shaped flange passes through the upward and hooks the flange through hole. The second U-shaped flange passes through the small U-shaped opening downward and is inserted into the flange groove. An S-shaped lock is formed between the first U-shaped flange and the second U-shaped flange.

[0009] Furthermore, the spring grooves have two, which are distributed at intervals, and one end is connected to the stop platform. The large U-shaped openings have two, which are distributed at intervals, and the opening direction is toward the stop platform. The large U-shaped opening corresponds to the spring groove up and down, and the length and width of the large U-shaped opening are larger than the length and width of the spring groove. The spring through holes have two, which are distributed at intervals. The spring through holes correspond to the large U-shaped opening up and down, and the length and width of the spring through holes are smaller than the length and width of the large U-shaped opening. The spring stop arm is located at the rear end of the spring through hole, can contact the stop platform, and pass through the large U-shaped opening to be plugged into and matched with the spring groove.

[0010] Furthermore, the return spring can pass through the spring through hole and the large U-shaped opening in sequence and be placed in the spring groove. One end of the return spring abuts against the spring groove, and the other end abuts against the spring stop arm, and the return spring has a motion stroke that is compressed or reset as the spring stop arm moves along the spring groove.

[0011] Furthermore, there are two flanging grooves, which are spaced apart on the outside of the two spring grooves, and one end of which is connected to the stop platform. There are two small U-shaped openings, which are spaced apart on the outside of the two large U-shaped openings, and the opening direction is toward the stop platform. The small U-shaped opening corresponds to the flanging groove up and down, and the length of the small U-shaped opening is smaller than the length of the flanging groove. There are two second U-shaped flanges, which are spaced apart on the outside of the two spring stop arms, which can contact the stop platform and pass through the small U-shaped opening and downwardly insert into the flanging groove. One side of the second U-shaped flange is pressed against the flanging groove by the small U-shaped opening. The second U-shaped flange has a movement stroke that drives the third light mouth to leave or contact the stop platform under the pulling or pushing of the sheet metal pull bolt plate.

[0012] Furthermore, the first U-shaped flange has two, which are distributed at intervals and are located at the front end of the small U-shaped opening and away from the small U-shaped opening. The flange through-holes have two, which are distributed at intervals and are located at the front end of the second U-shaped flange and away from the second U-shaped flange. The first U-shaped flange can pass through the flange through-holes, and one side is attached to the top of the sheet metal bolt plate. The first U-shaped flange has a movement stroke that drives the third optical port to leave or resist the baffle under the action of pulling or pushing the sheet metal bolt plate.

[0013] Furthermore, the unlocking pressure plate further includes an unlocking long arm, and the unlocking long arm has two arms, which are respectively fixed on both sides of the third optical port;

[0014] The base is provided with long step grooves on both sides of the first optical opening toward the rear end, the front end of the upper cover is provided with a second optical opening, and the upper cover is provided with long step side plates on both sides of the second optical opening toward the rear end;

[0015] The first optical port portion and the second optical port portion are plugged and abutted against each other up and down, a strip through slot is formed between the step long groove and the step long side plate, and the unlocking long arm is plugged and matched with the strip through slot.

[0016] Furthermore, a handshake is provided at the end of the unlocking pressure plate, a first coordination groove is provided at the end of the step long groove, a second coordination groove is provided on the side of the upper cover at the end of the step long side plate, the first coordination groove and the second coordination groove are spliced ​​up and down to form a coordination groove, and the handshake is snap-fitted with the coordination groove;

[0017] A limiting protrusion is provided in the middle of the unlocking long arm, and a limiting groove is provided on the inner wall of the long side plate of the step, and the limiting protrusion is engaged with the limiting groove;

[0018] The third optical port has a motion stroke that drives the limiting protrusion and the handshake of the unlocking long arm to disengage from or engage in the limiting groove and the coordination groove in sequence under the pulling or pushing action of the sheet metal bolt pull plate.

[0019] Furthermore, the first optical port is U-shaped, comprising a portion a at the top and portions b at both sides, wherein the height of the portion a is lower than the height of the stop, and the portion b is connected to the step groove as a whole;

[0020] The third optical port is U-shaped, including a portion c at the top and portions d at both sides. The portion c is pressed against the portion a and contacts the stopper. The portion d is integrally connected to the unlocking arm and covers the portion b. The unlocking arm fits snugly with the step groove.

[0021] Adjacent flat layers and stepped layers are provided between the side ends of the second optical opening and the long side plates of the steps. The b portion and the long step grooves are buckled and matched with the flat layers, and the d portion and the long side plates of the steps are buckled and matched with the stepped layers.

[0022] Furthermore, the pull ring assembly also includes a handle, which is fixed to the front end of the sheet metal pull bolt plate. A chamfered through hole is opened in the middle of the handle, and the outside of the handle is wrapped with rubber.

[0023] A method for unlocking an optical module pull ring is implemented using the optical module pull ring unlocking device, comprising the following steps:

[0024] S1: Take out the return spring from the spring groove and pass it through the large U-shaped opening and the spring through hole in sequence;

[0025] S2: Pull the handle, which drives the sheet metal bolt pull plate forward. Under the pulling action of the second U-shaped flange, the third opening part slides forward in contact with the first opening part, and a gap is created between the third opening part and the stop plate. Under the pulling action of the sheet metal bolt pull plate, the first U-shaped flange is tightly fastened to the edge of the flange through hole.

[0026] S3: Push the handle horizontally, and the handle drives the sheet metal bolt plate to move backward. Under the push of the sheet metal bolt plate, the second U-shaped flange moves until it hits the stopper and disengages from the small U-shaped opening. The flange through-hole moves backward with the sheet metal bolt plate. The first U-shaped flange remains stationary because the third optical opening is not under force, so it disengages from the flange through-hole.

[0027] S4: Lift the handle upwards, the sheet metal bolt plate is separated from the third optical port, and the pull ring assembly is removed from the unlocking pressure plate.

[0028] The beneficial effects of the present invention are embodied in:

[0029] In the present invention, the interaction between the first U-shaped flange and the second U-shaped flange is utilized to form an S-shaped lock buckle to lock the sheet metal bolt plate and the third optical port portion when the handle is pulled or pushed horizontally, or the S-shaped lock buckle is decomposed to unlock the sheet metal bolt plate and the third optical port portion, thereby completing the installation or disassembly of the pull ring assembly relative to the unlocking pressure plate. This unlocking device not only involves fewer parts, a simpler assembly structure, and an easier implementation method, but also eliminates the need for disassembly of the base or upper cover, and does not involve damage to the internal structure of the optical module, thereby greatly improving the replacement efficiency of the pull ring assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0031] Figure 1 It is an exploded view of the overall structure of the optical module according to an embodiment of the present invention.

[0032] Figure 2 It is an axonometric view of the base of an embodiment of the present invention.

[0033] Figure 3 It is an axonometric view of the upper cover of an embodiment of the present invention.

[0034] Figure 4 This is an embodiment of the present invention Figure 3 A is an enlarged schematic diagram.

[0035] Figure 5 It is an axonometric view of the unlocking pressure plate according to an embodiment of the present invention.

[0036] Figure 6 It is an axonometric view of a pull ring assembly according to an embodiment of the present invention.

[0037] Figure 7 FIG1 is a side cross-sectional view of the optical module in a locked state according to an embodiment of the present invention.

[0038] Figure 8 This is an embodiment of the present invention Figure 7 A magnified schematic diagram of B.

[0039] Figure 9 FIG. 1 is a partial isometric view of an optical module in a locked state according to an embodiment of the present invention.

[0040] Figure 10 This is an embodiment of the present invention Figure 9 A magnified schematic diagram of C in the middle.

[0041] The components in the accompanying drawings are marked as follows: 1. Base; 2. Upper cover; 3. Unlocking pressure plate; 4. Pull ring assembly; 5. First optical port; 501. Spring groove; 502. Flanged groove; 6. Stop platform; 7. Step long groove; 701. First coordination groove; 8. Second optical port; 801. Flat layer; 802. Step layer; 9. Step long side plate; 901. Limiting groove; 902. Second coordination groove; 10. Third Optical opening; 1001, large U-shaped opening; 1002, small U-shaped opening; 1003, first U-shaped flange; 11, unlocking long arm; 1101, limiting protrusion; 1102, handshake; 12, sheet metal pull bolt plate; 1201, spring through hole; 1202, spring stop arm; 1203, flange through hole; 1204, second U-shaped flange; 13, handle; 1301, chamfered through hole; 14, reset spring. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0043] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative positional relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly. In addition, if the embodiments of the present invention involve descriptions of "first", "second", etc., the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or schemes in which A and B are satisfied at the same time.

[0044] See also Figures 1-8 , an embodiment of the present invention provides an optical module pull ring unlocking device and method, comprising a pull ring assembly 4, an unlocking pressure plate 3, a base 1 and an upper cover 2 that can be detachably installed from top to bottom;

[0045] The front end of the base 1 is fixed with a first optical opening portion 5 and a stopper 6 in sequence from front to back. The unlocking pressure plate 3 includes a third optical opening portion 10. The pull ring assembly 4 includes a sheet metal bolt pull plate 12. The third optical opening portion 10 is covered outside the first optical opening portion 5 and contacts the stopper 6. The sheet metal bolt pull plate 12 is pressed on the third optical opening portion 10 and contacts the stopper 6.

[0046] The first optical opening portion 5 is provided with a spring groove 501, the third optical opening portion 10 is provided with a large U-shaped opening 1001 and a small U-shaped opening 1002, the end of the third optical opening portion 10 is provided with an upwardly curled first U-shaped flange 1003, the sheet metal bolt pull plate 12 is provided with a spring through hole 1201 and a flange through hole 1203, and the ends of the sheet metal bolt pull plate 12 are respectively provided with a downwardly curled second U-shaped flange 1204 and a downwardly folded spring stop arm 1202;

[0047] It also includes a reset spring 14, which can pass through the spring through hole 1201 and the large U-shaped opening 1001, and be taken out or put into the spring groove 501. The spring stop arm 1202 passes through the large U-shaped opening 1001 and the spring groove 501 downward in turn, and is squeezed into between the reset spring 14 and the stop platform 6. The first U-shaped flange 1003 passes through the flange through hole 1203 upward and hooks the flange through hole 1203. The second U-shaped flange 1204 passes through the small U-shaped opening 1002 downward and is inserted into the flange groove 502. An S-shaped lock is formed between the first U-shaped flange 1003 and the second U-shaped flange 1204.

[0048] In the present invention, the interaction between the first U-shaped flange and the second U-shaped flange is utilized to form an S-shaped lock buckle to lock the sheet metal bolt plate and the third optical port portion when the handle is pulled or pushed horizontally, or the S-shaped lock buckle is decomposed to unlock the sheet metal bolt plate and the third optical port portion, thereby completing the installation or disassembly of the pull ring assembly relative to the unlocking pressure plate. This unlocking device not only involves fewer parts, a simpler assembly structure, and an easier implementation method, but also eliminates the need for disassembly of the base or upper cover, and does not involve damage to the internal structure of the optical module, thereby greatly improving the replacement efficiency of the pull ring assembly.

[0049] See also Figure 2 、 Figure 5-Figure 9 In this embodiment, the spring groove 501 has two, which are distributed at intervals, and one end is connected to the stopper 6. The large U-shaped opening 1001 has two, which are distributed at intervals, and the opening direction is toward the stopper 6. The large U-shaped opening 1001 corresponds to the spring groove 501 up and down, and the length and width of the large U-shaped opening 1001 are larger than the length and width of the spring groove 501. The spring through hole 1201 has two, which are distributed at intervals. The spring through hole 1201 corresponds to the large U-shaped opening 1001 up and down, and the length and width of the spring through hole 1201 are smaller than the length and width of the large U-shaped opening 1001. The spring stop arm 1202 is located at the rear end of the spring through hole 1201, can contact the stopper 6, and pass through the large U-shaped opening 1001 to be plugged into and matched with the spring groove 501. With this design, when the optical module is locked, the sheet metal bolt plate 12, the third optical port part 10 and the first optical port part 5 are pressed in sequence from top to bottom, and the sheet metal bolt plate 12 and the third optical port part 10 both abut against the stopper 6, and the reset spring 14 is inserted into the spring groove 501, and cannot fall out of the spring through hole 1201 on its own without the action of external force, and the spring stop arm 1202 abuts against the stopper 6, and passes downward through the large U-shaped opening 1001, and squeezes in between the reset spring 14 and the stopper 6, completing the limitation of the reset spring 14.

[0050] See also Figure 2 、 Figure 5-Figure 9In this embodiment, the return spring 14 can pass through the spring through hole 1201 and the large U-shaped opening 1001 in sequence and be placed in the spring groove 501. One end of the return spring 14 abuts against the spring groove 501, and the other end abuts against the spring stop arm 1202. The return spring 14 has a movement stroke that is compressed or reset as the spring stop arm 1202 moves along the spring groove 501. With this design, when assembling the optical module, the reset spring 14 can be placed in the spring groove 501 in advance, that is, one end abuts against the spring groove 501, and the other end abuts against the stop 6, and then the unlocking pressure plate 3 and the pull ring assembly 4 are installed on the base 1 in sequence. When disassembling the pull ring assembly 4, a sharp tool such as tweezers or a crochet hook can be used to pick out the reset spring 14 in the spring groove 501 through the spring through hole 1201 and the large U-shaped opening 1001, and then the unlocking step between the sheet metal pull bolt plate 12 and the third optical port 10 is performed.

[0051] See also Figure 2 、 Figure 5-Figure 9 In this embodiment, there are two flanging grooves 502, which are spaced apart on the outside of the two spring grooves 501, and one end of which is connected to the stopper 6. There are two small U-shaped openings 1002, which are spaced apart on the outside of the two large U-shaped openings 1001, and the opening direction is toward the stopper 6. The small U-shaped opening 1002 corresponds to the flanging groove 502 up and down, and the length of the small U-shaped opening 1002 is less than the length of the flanging groove 502. The second U-shaped flanging 1204 has There are two of them, which are spaced apart on the outside of the two spring stop arms 1202, which can contact the stop platform 6 and pass through the small U-shaped opening 1002 and insert downward into the flange groove 502. One side of the second U-shaped flange 1204 is pressed against the flange groove 502 by the small U-shaped opening 1002. The second U-shaped flange 1204 has a movement stroke that drives the third optical port 10 to leave or contact the stop platform 6 under the action of pulling or pushing the sheet metal bolt plate 12. With this design, when the pull ring assembly 4 is pulled, the sheet metal bolt plate 12 is driven by the pull ring assembly 4, so that the second U-shaped flange 1204 hooks the small U-shaped opening 1002 and moves in the pulling direction, that is, the third optical mouth part 10 is clamped between the sheet metal bolt plate 12 and the first optical mouth part 5, and under the pulling action of the sheet metal bolt plate 12, it will fit the first optical mouth part 5 and slide in the pulling direction, and create a gap between it and the stop table 6, completing the unlocking; conversely, by the same token, when the pull ring assembly 4 is pushed horizontally, the third optical mouth part 10 will fit the first optical mouth part 5 and slide in the pushing direction, and conflict with the stop table 6, completing the locking.

[0052] See also Figure 2 、 Figure 5-Figure 9 In this embodiment, the first U-shaped flange 1003 has two, which are distributed at intervals and are located at the front end of the small U-shaped opening 1002 and away from the small U-shaped opening 1002. The flange through holes 1203 have two, which are distributed at intervals and are located at the front end of the second U-shaped flange 1204 and away from the second U-shaped flange 1204. The first U-shaped flange 1003 can pass through the flange through holes 1203, and one side is attached to the top of the sheet metal bolt plate 12, and the first U-shaped flange 1003 has a movement stroke that drives the third optical port 10 to leave or resist the baffle 6 under the action of pulling or pushing the sheet metal bolt plate 12. With this design, the first U-shaped flange 1003 is rolled up, and the opening direction is toward the horizontal pushing direction, while the second U-shaped flange 1204 is rolled down, and the opening direction is toward the pulling direction. Therefore, when the optical module is locked, an S-shaped lock is formed between the first U-shaped flange 1003 and the second U-shaped flange 1204; on the contrary, when the optical module is unlocked, it can be seen from the above embodiment that a gap is generated between the third optical port 10 and the baffle 6, and then the sheet metal bolt plate 12 is pushed, the first U-shaped flange 1003 and the flange through hole 1203 are disengaged, and the second U-shaped flange 1204 and the small U-shaped opening 1002 are disengaged, and the pull ring assembly 4 is lifted upward to separate it from the unlocking pressure plate 3.

[0053] See also Figure 2 、 Figure 3 and Figure 5 In this embodiment, the unlocking pressure plate 3 further includes an unlocking long arm 11, and the unlocking long arm 11 has two, which are respectively fixed on both sides of the third optical port 10;

[0054] The base 1 is provided with stepped long grooves 7 on both sides of the first optical opening 5 along the rear end, the front end of the upper cover 2 is provided with a second optical opening 8, and the upper cover 2 is provided with stepped long side plates 9 on both sides of the second optical opening 8 along the rear end;

[0055] The first optical opening 5 and the second optical opening 8 are plugged and abutted against each other up and down, a strip through groove is formed between the step long groove 7 and the step long side plate 9, and the unlocking long arm 11 is plugged and matched with the strip through groove.

[0056] With this design, under the limiting action of the unlocking long arm 11 and the strip through groove, the unlocking pressure plate 3 is firmly covered on the outside of the base 1 and is snap-fitted with the upper cover 2. When not affected by external force, the unlocking pressure plate 3 remains stationary relative to the base 1. When affected by external force, such as pulling or pushing force, the unlocking long arm 11 slides along the length direction of the strip through groove, but does not slide out of the strip through groove as a whole. The third optical port portion 10 slides in contact with the first optical port portion 5, but does not separate from the first optical port portion 5 as a whole.

[0057] See also Figure 2 、 Figure 3 、 Figure 5 and Figure 10 In this embodiment, a handshake 1102 is provided at the end of the unlocking pressure plate 3, a first coordination groove 701 is provided at the end of the step long groove 7, and a second coordination groove 902 is provided on the side of the upper cover 2 at the end of the step long side plate 9. The first coordination groove 701 and the second coordination groove 902 are spliced ​​up and down to form a coordination groove, and the handshake 1102 is engaged with the coordination groove;

[0058] A limiting protrusion 1101 is provided in the middle of the unlocking long arm 11, and a limiting groove 901 is provided on the inner wall of the step long side plate 9, and the limiting protrusion 1101 is engaged with the limiting groove 901;

[0059] Under the pulling or pushing action of the sheet metal bolt pull plate 12, the third optical port portion 10 has a movement stroke that drives the limiting protrusion 1101 and the handshake 1102 of the unlocking long arm 11 to disengage from or get into the limiting groove 901 and the coordination groove in turn.

[0060] With such a design, after the unlocking long arm 11 is inserted into the strip through groove, the handshake 1102 is pressed into the coordination groove, and the coordination groove is exposed outside the housing of the optical module, which is convenient for observing whether the unlocking long arm 11 is plugged into place. At the same time, under the limiting action of the limiting groove 901, the degree of firmness of the fit between the unlocking long arm 11 and the upper cover 2 is further strengthened, so that the unlocking long arm 11 is stably installed in the strip through groove without being affected by external forces, and can slide along the length direction of the strip through groove under the action of external forces, such as pulling or pushing force, thereby completing the unlocking or locking of the unlocking long arm 11 and the limiting groove 901 or the coordination groove.

[0061] See also Figure 2-Figure 5 In this embodiment, the first optical port 5 is U-shaped, including a portion at the top and b portions at both sides, the height of the a portion is lower than the height of the stop 6, and the b portion is connected to the step groove 7 as a whole;

[0062] The third optical port 10 is U-shaped, including a portion c at the top and portions d on both sides. The portion c is pressed against the portion a and contacts the stop 6. The portion d is integrally connected to the unlocking arm 11 and covers the portion b. The unlocking arm 11 fits snugly with the step groove 7.

[0063] Adjacent flat layers 801 and stepped layers 802 are provided between the side ends of the second optical port 8 and the long side plates 9 of the steps. The b portion and the long step groove 7 are snap-fitted with the flat layers 801 , and the d portion and the long side plates 9 of the steps are snap-fitted with the stepped layers 802 .

[0064] With this design, during the installation of the optical module, the unlocking pressure plate 3 is first installed on the base 1, the third optical port part 10 is covered on the first optical port part 5, and the unlocking long arm 11 is engaged with the step long groove 7, and then the unlocking pressure plate 3 and the base 1 are assembled as a whole and fastened together with the upper cover 2, so that the first optical port part 5 and the third optical port part 10 are engaged with the flat layer 801 and the stepped layer 802 one by one, and the unlocking long arm 11 is engaged with the inner wall of the step long side plate 9, completing the assembly between the base 1, the upper cover 2 and the unlocking pressure plate 3, and the limiting fixation of the unlocking long arm 11.

[0065] See also Figure 6 In this embodiment, the pull ring assembly 4 further includes a handle 13, which is fixed to the front end of the sheet metal bolt pull plate 12. A chamfered through-hole 1301 is defined in the middle of the handle 13, and the outside of the handle 13 is covered with a rubber coating. With this design, the sheet metal bolt pull plate 12 can be slid forward and backward relative to the third optical port 10 by pulling or pushing the handle 13, thereby achieving locking or disengagement between the first U-shaped flange 1003 and the second U-shaped flange 1204. During actual operation, the handle 13 can be grasped by its handle or the chamfered through-hole 1301 can be hooked with a finger. The rubber coating has different colors, and different colors of the rubber coating on the handle 13 represent different transmission distances of different optical modules.

[0066] See also Figures 1-10 The embodiment of the present invention further provides a light module pull ring unlocking method, which is implemented using the light module pull ring unlocking device, and includes the following steps:

[0067] S1: Take the return spring 14 out of the spring groove 501 and pass it through the large U-shaped opening 1001 and the spring through hole 1201 in sequence;

[0068] The return spring 14 can be picked out from the spring groove 501 by using a sharp tool such as tweezers or a crochet hook through the spring through hole 1201 and the large U-shaped opening 1001 , and then the following unlocking steps can be performed.

[0069] S2: Pull the handle 13, which drives the sheet metal bolt pull plate 12 to move forward. Under the pulling action of the second U-shaped flange 1204, the third optical opening 10 slides forward in contact with the first optical opening 5, and a gap is created between the third optical opening 10 and the stop 6. Under the pulling action of the sheet metal bolt pull plate 12, the first U-shaped flange 1003 is tightly fastened to the edge of the flange through hole 1203;

[0070] S3: Push the handle 13 horizontally. The handle 13 drives the sheet metal bolt pull plate 12 to move backward. Under the push of the sheet metal bolt pull plate 12, the second U-shaped flange 1204 moves until it hits the stopper 6 and disengages from the small U-shaped opening 1002. The flange through-hole 1203 moves backward along with the sheet metal bolt pull plate 12. The first U-shaped flange 1003 remains stationary because the third optical opening 10 is not subjected to force, and thus disengages from the flange through-hole 1203.

[0071] The first U-shaped flange 1003 is rolled up, and the opening direction is toward the horizontal pushing direction, while the second U-shaped flange 1204 is rolled down, and the opening direction is toward the pulling direction. Therefore, when the optical module is locked, an S-shaped lock is formed between the first U-shaped flange 1003 and the second U-shaped flange 1204; on the contrary, when the optical module is unlocked, the pull ring assembly 4 is pulled, and the sheet metal bolt plate 12 is driven by the pull ring assembly 4, so that the second U-shaped flange 1204 hooks the small U-shaped opening 1002 to be pulled out Move in the pulling direction, that is, the third optical mouth part 10, under the premise of being clamped between the sheet metal bolt plate 12 and the first optical mouth part 5, will slide in the pulling direction in accordance with the first optical mouth part 5 under the pulling action of the sheet metal bolt plate 12, and create a gap between it and the stop table 6, the second U-shaped flange 1204 and the small U-shaped opening 1002 will be disengaged, and then the sheet metal bolt plate 12 will be pushed, the first U-shaped flange 1003 and the flange through hole 1203 will be disengaged, and at this time the S-shaped lock is completely unlocked.

[0072] S4: Lift the handle 13 upwards, the sheet metal bolt pull plate 12 is separated from the third optical port 10, and the pull ring assembly 4 is removed from the unlocking pressure plate 3.

[0073] In summary, in the present invention, the interaction between the first U-shaped flange and the second U-shaped flange is utilized to form an S-shaped lock buckle to lock the sheet metal bolt plate and the third optical port part when the handle is pulled or pushed horizontally, or the S-shaped lock buckle is decomposed to unlock the sheet metal bolt plate and the third optical port part, thereby completing the installation or disassembly of the pull ring assembly relative to the unlocking pressure plate. This unlocking device not only involves fewer parts, a simpler assembly structure, and an easier implementation method, but also eliminates the need for disassembly of the base or the upper cover, and does not involve damage to the internal structure of the optical module, thereby greatly improving the replacement efficiency of the pull ring assembly.

[0074] It should be understood that the examples and implementation methods described herein are for illustrative purposes only and are not intended to limit the present invention. Those skilled in the art may make various modifications or changes based on them. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pull ring unlocking device for an optical module, characterized in that: It comprises a pull ring assembly (4), an unlocking pressure plate (3), a base (1) and an upper cover (2) which are detachably installed in sequence from top to bottom; The front end of the base (1) is fixed with a first optical port portion (5) and a stopper (6) in sequence from front to back, the unlocking pressure plate (3) includes a third optical port portion (10), the pull ring assembly (4) includes a sheet metal bolt plate (12), the third optical port portion (10) is covered outside the first optical port portion (5) and contacts the stopper (6), and the sheet metal bolt plate (12) is pressed on the third optical port portion (10) and contacts the stopper (6); The first optical opening portion (5) is provided with a spring groove (501), the third optical opening portion (10) is provided with a large U-shaped opening (1001) and a small U-shaped opening (1002), the end portion of the third optical opening portion (10) is provided with a first U-shaped flange (1003) that is rolled up, the sheet metal bolt pull plate (12) is provided with a spring through hole (1201) and a flange through hole (1203), and the end portion of the sheet metal bolt pull plate (12) is provided with a second U-shaped flange (1204) that is rolled down and a spring stop arm (1202) that is folded down. It also includes a reset spring (14), which can pass through the spring through hole (1201) and the large U-shaped opening (1001) and be taken out or put into the spring groove (501), and the spring stop arm (1202) passes through the large U-shaped opening (1001) and the spring groove (501) downward in sequence, and is squeezed into between the reset spring (14) and the stop platform (6), the first U-shaped flange (1003) passes through the flange through hole (1203) upward and hooks the flange through hole (1203), the second U-shaped flange (1204) passes through the small U-shaped opening (1002) downward and is inserted into the flange groove (502), and an S-shaped lock is formed between the first U-shaped flange (1003) and the second U-shaped flange (1204).

2. The optical module pull ring unlocking device according to claim 1, wherein: The spring groove (501) has two, spaced apart, and one end is connected to the stop platform (6); the large U-shaped opening (1001) has two, spaced apart, and the opening direction is toward the stop platform (6); the large U-shaped opening (1001) corresponds to the spring groove (501) in upper and lower parts, and the length and width of the large U-shaped opening (1001) are greater than the length and width of the spring groove (501); the spring through hole (1201) has two, spaced apart, and the spring through hole (1201) corresponds to the large U-shaped opening (1001) in upper and lower parts, and the length and width of the spring through hole (1201) are less than the length and width of the large U-shaped opening (1001); the spring stop arm (1202) is located at the rear end of the spring through hole (1201), can contact the stop platform (6), and pass through the large U-shaped opening (1001) to be plugged and matched with the spring groove (501).

3. The optical module pull ring unlocking device according to claim 2, wherein: The return spring (14) can pass through the spring through hole (1201) and the large U-shaped opening (1001) in sequence and be placed in the spring groove (501). One end of the return spring (14) abuts against the spring groove (501), and the other end abuts against the spring stop arm (1202). The return spring (14) has a movement stroke that is compressed or reset as the spring stop arm (1202) moves along the spring groove (501).

4. The optical module pull ring unlocking device according to claim 1, wherein: There are two flanging grooves (502), which are spaced apart on the outside of the two spring grooves (501), and one end of which is connected to the stopper (6). There are two small U-shaped openings (1002), which are spaced apart on the outside of the two large U-shaped openings (1001), and the opening direction is toward the stopper (6). The small U-shaped opening (1002) corresponds to the flanging groove (502) in the upper and lower parts, and the length of the small U-shaped opening (1002) is less than the length of the flanging groove (502). There are two second U-shaped flanging edges (1204). It is distributed at intervals on the outside of the two spring stop arms (1202), can contact the stop platform (6), and pass through the small U-shaped opening (1002) and insert downward into the flange groove (502), and one side of the second U-shaped flange (1204) is pressed against the flange groove (502) by the small U-shaped opening (1002), and the second U-shaped flange (1204) has a movement stroke that drives the third optical port (10) to leave or contact the stop platform (6) under the action of pulling or pushing the sheet metal bolt plate (12).

5. The optical module pull ring unlocking device according to claim 1, wherein: The first U-shaped flange (1003) has two portions, which are spaced apart and located at the front end of the small U-shaped opening (1002) and away from the small U-shaped opening (1002). The flange through-hole (1203) has two portions, which are spaced apart and located at the front end of the second U-shaped flange (1204) and away from the second U-shaped flange (1204). The first U-shaped flange (1003) can pass through the flange through-hole (1203), with one side being attached to the top of the sheet metal bolt plate (12). The first U-shaped flange (1003) has a movement stroke capable of driving the third optical port (10) to leave or contact the blocking platform (6) under the pulling or pushing action of the sheet metal bolt plate (12).

6. The optical module pull ring unlocking device according to claim 1, wherein: The unlocking pressure plate (3) further includes an unlocking long arm (11), and the unlocking long arm (11) has two arms, which are respectively fixed on both sides of the third optical port (10); The base (1) is provided with long step grooves (7) on both sides of the first optical opening (5) toward the rear end, the front end of the upper cover (2) is provided with a second optical opening (8), and the upper cover (2) is provided with long step side plates (9) on both sides of the second optical opening (8) toward the rear end; The first optical port (5) and the second optical port (8) are plugged and abutted against each other up and down, a strip-shaped through slot is formed between the step long slot (7) and the step long side plate (9), and the unlocking long arm (11) is plugged and matched with the strip-shaped through slot.

7. The optical module pull ring unlocking device according to claim 6, wherein: The end of the unlocking pressure plate (3) is provided with a handshake (1102), the end of the step long groove (7) is provided with a first coordination groove (701), the side of the upper cover (2) is provided with a second coordination groove (902) at the end of the step long side plate (9), the first coordination groove (701) and the second coordination groove (902) are spliced ​​up and down to form a coordination groove, and the handshake (1102) is snap-fitted with the coordination groove; A limiting protrusion (1101) is provided in the middle of the unlocking long arm (11), and a limiting groove (901) is provided on the inner wall of the step long side plate (9), and the limiting protrusion (1101) is engaged and matched with the limiting groove (901); The third optical port (10) has a motion stroke that drives the limiting protrusion (1101) and the handshake (1102) of the unlocking long arm (11) to disengage from or engage in the limiting groove (901) and the coordination groove in sequence under the pulling or pushing action of the sheet metal bolt pull plate (12).

8. The optical module pull ring unlocking device according to claim 6, wherein: The first optical port (5) is U-shaped, comprising a portion a at the top and portions b at both sides, wherein the height of the portion a is lower than the height of the stop (6), and the portion b is connected to the step groove (7) to form a whole; The third optical port portion (10) is U-shaped, comprising a portion c at the top and portions d at both sides, wherein the portion c is pressed against the portion a and contacts the stopper (6), the portion d is integrally connected to the unlocking long arm (11), and the portion d is wrapped around the portion b, and the unlocking long arm (11) is fitted and matched with the step long groove (7); Adjacent flat layers (801) and stepped layers (802) are provided between the side ends of the second optical port portion (8) and the long side plates (9) of the steps. The b portion and the long grooves (7) of the steps are snap-fitted and matched with the flat layers (801), and the d portion and the long side plates (9) of the steps are snap-fitted and matched with the stepped layers (802).

9. The optical module pull ring unlocking device according to claim 1, wherein: The pull ring assembly (4) also includes a handle (13), which is fixed to the front end of the sheet metal pull bolt plate (12), a rounded through hole (1301) is opened in the middle of the handle (13), and the outside of the handle (13) is wrapped with rubber.

10. A method for unlocking an optical module pull ring, implemented using the optical module pull ring unlocking device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: Take the return spring (14) out of the spring groove (501) and pass it through the large U-shaped opening (1001) and the spring through hole (1201) in sequence; S2: Pull the handle (13), the handle (13) drives the sheet metal bolt pull plate (12) to move forward, and the third light opening portion (10) slides forward in contact with the first light opening portion (5) under the pulling action of the second U-shaped flange (1204), and a gap is generated between the third light opening portion (10) and the stopper (6), and the first U-shaped flange (1003) is tightly fastened to the edge of the flange through hole (1203) under the pulling action of the sheet metal bolt pull plate (12); S3: Push the handle (13) horizontally, the handle (13) drives the sheet metal bolt pull plate (12) to move backward, and the second U-shaped flange (1204) moves until it hits the stopper (6) under the push of the sheet metal bolt pull plate (12), and is disengaged from the small U-shaped opening (1002), and the flange through hole (1203) moves backward along with the sheet metal bolt pull plate (12), and the first U-shaped flange (1003) remains stationary because the third optical port (10) is not subjected to force, and is therefore disengaged from the flange through hole (1203); S4: Lift the handle (13) upwards, the sheet metal bolt plate (12) is separated from the third optical port (10), and the pull ring assembly (4) is removed from the unlocking pressure plate (3).

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