An adjustable length clamp for MT-Mini MT torsion jumper wires

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By designing an adjustable length clamp, the problems of 90° twist and length accuracy between MT ferrules and Mini MT ferrules were solved, realizing stable fixing and length adjustment of fiber optic modules, which is suitable for high-speed parallel optical transmission.

CN224536221UActive Publication Date: 2026-07-21深圳市飞宇光纤股份有限公司

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: 深圳市飞宇光纤股份有限公司
Filing Date: 2025-12-22
Publication Date: 2026-07-21

AI Technical Summary

Technical Problem

Existing fixtures cannot meet the 90° twist and length accuracy requirements between the MT ferrule and the Mini MT ferrule, resulting in the inability to effectively secure the parallel optical module.

Method used

An adjustable length clamp was designed, comprising a base, slide rail, fiber optic pad, and MT ferrule limiting slot. By fixing with pre-positioning components and bolts, the parallel sliding adjustment and positioning of the fiber optic pad and MT ferrule limiting slot are achieved. Combined with structures such as locking rod, toothed plate, and lifting bolt, the angle and length are precisely adjusted.

Benefits of technology

It achieves stable vertical positioning and length adjustment between MT ferrules and Mini MT ferrules, meeting high-precision angle and length requirements, and is suitable for high-speed, high-density parallel optical transmission.

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Abstract

The utility model relates to an optical communication technology, concretely is a kind of adjustable fixed-length clamp of MT-Mini MT torsion short jumper, including base and slide rail;Optical fiber pad and MT ferrule limiting groove are slidably arranged on the slide rail, and the top position of two slide rails is provided with the MT-Mini ferrule limiting groove perpendicular to the slide rail of both sides;Pre-positioning assembly is set on optical fiber pad and MT ferrule limiting groove, and pre-positioning assembly is adapted with multiple positioning notches equidistantly set on slide rail;The both sides of optical fiber pad and MT ferrule limiting groove are provided with bolt slot. The optical fiber pad and MT ferrule limiting groove can be parallel to MT-Mini ferrule limiting groove and be adjusted by the two slide rails, after adjusting, using the pre-positioning assembly set to its positioning, not only can realize the angle of location, and can be without replacing clamp, the length of specific product is adjusted.

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Description

Technical Field

[0001] This utility model relates to an optical communication technology, specifically an adjustable length clamp for an MT-Mini MT twisted short jumper. Background Technology

[0002] With the rapid development of optical communication technology, short jumpers for high-speed modules are a key technology for data center expansion, evolving from 10Gbps to 800Gbps optical transmission rates as data volume increases. Parallel optics technology is an important means of data center expansion, especially considering the increasing speeds and module space constraints. Parallel optics technology is a special optical communication technology that achieves multi-channel high-speed transmission by placing two parallel jumpers (MTs).

[0003] MT-Mini MT 90° twist type short patch cords are widely used in high-speed, high-density parallel optical transmission. MT-Mini MT type products typically consist of MT ferrules, Mini MT ferrules, and bare optical fibers, with the fiber and ferrules fixed together using adhesive. Due to the high precision requirements for the fixing angle and length between the MT ferrules and Mini MT ferrules during manufacturing, conventional clamps cannot achieve a 90° twist, rendering them unusable. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable length clamp for MT-Mini MT torsion jumper wires to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An adjustable length clamp for an MT-Mini MT torsion jumper cable includes a base and slide rails fixedly disposed on both sides of the base and arranged in parallel.

[0007] The slide rails are slidably provided with parallel fiber pads and MT ferrule limiting grooves. At the top of the two slide rails, there are MT-Mini ferrule limiting grooves that are perpendicular to the slide rails on both sides. The MT-Mini ferrule limiting grooves are fixedly provided on the base.

[0008] Both the fiber optic pad and the MT ferrule limiting groove are provided with pre-positioning components, and the pre-positioning components are adapted to multiple positioning notches equidistantly arranged on the slide rail.

[0009] Both sides of the fiber optic pad and the MT ferrule limiting groove are provided with bolt through slots, and fastening bolt holes are provided at equal intervals on the slide rail.

[0010] The adjustable length clamp for the MT-Mini MT torsion jumper described above: the pre-positioning component includes locking rods that are elastically and symmetrically arranged on both sides of the fiber pad and the MT ferrule limiting groove, and the end of the locking rod facing the slide rail has a locking tip that matches the positioning notch;

[0011] The fiber optic pad and the MT ferrule limiting groove are also provided with a control structure that cooperates with the locking rod. The control structure can drive the locking rods located on both sides to move closer to each other so that the locking tip disengages from the positioning notch.

[0012] The adjustable length clamp for the MT-Mini MT twisted short jumper described above: a guide sleeve is also fixedly installed on the fiber optic pad and the MT ferrule limiting groove; a top rod is fixedly provided at the end of the locking rod away from the locking tip; and one end of the top rod is slidably inserted into the guide sleeve.

[0013] A compression spring is sleeved on the outside of the push rod. One end of the compression spring abuts against the end of the push rod, and the other end of the compression spring abuts against the end of the guide sleeve.

[0014] The adjustable length clamp for the MT-Mini MT torsion jumper described above: the control structure includes a toothed plate that is slidably disposed on the fiber pad and the MT ferrule limiting groove and is perpendicular to the locking rod;

[0015] A gear is provided on each side of the toothed plate, and the gears are rotatably mounted on the optical fiber pad and the MT ferrule limiting groove.

[0016] The gear is connected to the locking rod via a connecting rod, wherein one end of the connecting rod is hinged to the locking rod, and the other end of the connecting rod is hinged to the eccentric part of the gear.

[0017] The adjustable length clamp for the MT-Mini MT torsion jumper described above: a lifting bolt is fixedly installed on the fiber optic pad and the MT ferrule limiting groove, and a guide groove is provided in the center of the locking rod to slide and engage with the lifting bolt.

[0018] As described above, the adjustable length clamp for the MT-Mini MT torsion jumper has two control slots symmetrically arranged on both sides of the center of the toothed plate. Two lifting columns are fixedly installed on the fiber optic pad and the MT ferrule limiting slot. The lifting columns pass through the control slots and slide with them.

[0019] As described above, the adjustable length clamp for the MT-Mini MT torsion jumper cable is as follows: the toothed plate is fixed to the push rod by an "L"-shaped connector, and the fiber optic pad and the MT ferrule limiting groove are provided with guide holes, and the push rod is slidably inserted into the guide holes.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows: The two slide rails allow the fiber optic pad and MT ferrule limiting groove to slide and adjust parallel to the MT-Mini ferrule limiting groove. After adjustment, the pre-positioning component is used to position them, and then the bolts are used to engage with the fastening bolt holes to completely fix them and maintain stability. During use, the MT ferrule is first placed vertically in the MT ferrule limiting groove, and then the MT-Mini ferrule is placed on the MT-Mini ferrule limiting groove, achieving horizontal and vertical positioning between the MINI-MT ferrule and the MT ferrule. The specific length of the product formed by the MT-Mini ferrule and the MT ferrule can be fixed by adjusting the fiber optic pad and the MT ferrule limiting groove. This fixture not only allows for angle limiting but also enables adjustment of the specific product length without changing the fixture. Attached Figure Description

[0021] Figure 1 This is a front view of the adjustable length clamp for the MT-Mini MT torsion jumper.

[0022] Figure 2 A three-dimensional structural diagram of the adjustable length clamp for the MT-Mini MT torsion jumper.

[0023] Figure 3 This is a schematic diagram of the structure of the adjustable length clamp for the MT-Mini MT twisted jumper after removing the fiber optic pad and MT ferrule limiting groove.

[0024] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0025] Figure 5 This is a schematic diagram of the fiber optic pad and its prepositioning components in the adjustable length clamp for the MT-Mini MT twisted jumper.

[0026] Figure 6 In order to be in Figure 5 The diagram shows the prepositioning component after it has been removed from the fiber optic pad.

[0027] Figure 7 This is a schematic diagram of the pre-positioning component in the adjustable length clamp of the MT-Mini MT torsion jumper.

[0028] Figure 8 In order to be in Figure 7 The diagram shows the disassembled control structure, compression spring, and guide sleeve on one side.

[0029] In the diagram: 1-MT-Mini ferrule limiting groove; 2-slide rail; 201-positioning notch; 3-fastening bolt hole; 4-fiber optic pad; 5-MT ferrule limiting groove; 6-base; 7-guide hole; 8-push rod; 9-locking rod; 901-guide groove; 902-locking tip; 10-lifting bolt; 11-lifting column; 12-tooth plate; 1201-control groove; 13-gear; 14-connecting rod; 15-guide sleeve; 16-top rod; 17-compression spring. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0031] Please see Figures 1-8 As an embodiment of the present utility model, the adjustable length clamp for the MT-Mini MT torsion jumper includes a base 6 and slide rails 2 fixedly disposed on both sides of the base 6 and arranged in parallel.

[0032] The slide rail 2 is slidably provided with mutually parallel fiber pads 4 and MT ferrule limiting grooves 5. At the top of the two slide rails 2, there are MT-Mini ferrule limiting grooves 1 perpendicular to the slide rails 2 on both sides. The MT-Mini ferrule limiting grooves 1 are fixedly provided on the base 6.

[0033] Both the fiber optic pad 4 and the MT ferrule limiting groove 5 are provided with pre-positioning components, which are adapted to the multiple positioning notches 201 equidistantly arranged on the slide rail 2.

[0034] Both sides of the fiber optic pad 4 and the MT ferrule limiting groove 5 are provided with bolt through slots, and fastening bolt holes 3 are provided at equal intervals on the slide rail 2.

[0035] In this embodiment, the fiber optic pad 4 and the MT ferrule limiting groove 5 are slidably adjusted parallel to the MT-Mini ferrule limiting groove 1 by the two slide rails 2. After adjustment, they are positioned by the pre-positioning component and then completely fixed by the bolts and fastening bolt holes 3 to maintain stability. In specific use, the MT ferrule is first placed vertically in the MT ferrule limiting groove 5, and then the MT-Mini ferrule is placed on the MT-Mini ferrule limiting groove 1 to achieve horizontal and vertical positioning between the MINI-MT ferrule and the MT ferrule. The specific length of the product formed by the MT-Mini ferrule and the MT ferrule can be fixed by adjusting the fiber optic pad 4 and the MT ferrule limiting groove 5. This fixture can not only limit the angle, but also adjust the specific product length without changing the fixture.

[0036] Before using this clamp, you need to apply glue to the ferrule, then thread the optical fiber through the ferrule, and then apply silicone to the end of the ferrule sleeve. After the glue dries, use tweezers to pick up the ferrule and remove the clamp, thus completing the molding and length setting.

[0037] As a further embodiment of this utility model, the pre-positioning component includes locking rods 9 elastically and symmetrically disposed on both sides of the optical fiber pad 4 and the MT ferrule limiting groove 5, and the end of the locking rod 9 facing the slide rail 2 is formed with a locking tip 902 that is adapted to the positioning notch 201.

[0038] The fiber optic pad 4 and the MT ferrule limiting groove 5 are also provided with a control structure that cooperates with the locking rod 9. The control structure can drive the locking rods 9 located on both sides to move closer to each other so that the locking tip 902 disengages from the positioning notch 201.

[0039] In this embodiment, since the locking rods 9 located on both sides of the fiber optic pad 4 and the MT ferrule limiting groove 5 are elastically set on the fiber optic pad 4 and the MT ferrule limiting groove 5, the elastic force will always be applied to the locking rods 9 on both sides to move closer to the slide rails 2 on both sides when no external force is applied.

[0040] When it is necessary to adjust the positions of the fiber optic pad 4 and the MT ferrule limiting groove 5, firstly, the locking tip 902 is disengaged from the positioning notch 201 by the control structure. Then, the positions of the fiber optic pad 4 and the MT ferrule limiting groove 5 can be adjusted along the slide rail 2. After adjusting to the approximate position, the control structure can be released, and then the fiber optic pad 4 and the MT ferrule limiting groove 5 can be finely adjusted. When the locking tip 902 is aligned with the positioning notch 201, under the action of elastic force, the locking tip 902 can automatically insert into the positioning notch 201, so that the fiber optic pad 4 and the MT ferrule limiting groove 5 cannot slide. Finally, the bolts are used to cooperate with the fastening bolt holes 3 to make them completely fixed.

[0041] As a further embodiment of this utility model, a guide sleeve 15 is also fixedly installed on the fiber optic pad 4 and the MT ferrule limiting groove 5, and a top rod 16 is fixedly provided at the end of the locking rod 9 away from the locking tip 902, and one end of the top rod 16 is slidably inserted into the guide sleeve 15.

[0042] A compression spring 17 is sleeved on the outside of the push rod 16. One end of the compression spring 17 abuts against the end of the push rod 16, and the other end of the compression spring 17 abuts against the end of the guide sleeve 15.

[0043] In this embodiment, under the action of the compression spring 17, one end of the push rod 16 always has an elastic force that wants to be pulled out of the guide sleeve 15, thereby making the locking rod 9 always have an elastic force away from the guide sleeve 15, that is, making the locking tip 902 always have an elastic force that moves closer to the slide rail 2.

[0044] As a further embodiment of this utility model, the control structure includes a toothed plate 12 that is slidably disposed on the optical fiber pad 4 and the MT ferrule limiting groove 5 and is perpendicular to the locking rod 9.

[0045] A gear 13 is provided on each side of the toothed plate 12, and the gear 13 is rotatably mounted on the optical fiber pad 4 and the MT ferrule limiting groove 5;

[0046] The gear 13 is connected to the locking rod 9 via a connecting rod 14, wherein one end of the connecting rod 14 is hinged to the locking rod 9, and the other end of the connecting rod 14 is hinged to the eccentric part of the gear 13.

[0047] In this embodiment, by pushing the toothed plate 12, the teeth on both sides of the toothed plate 12 drive the gears 13 on both sides to rotate, and then the connecting rod 14 drives the locking rods 9 on both sides to move closer to each other and further compress the compression spring 17.

[0048] As a further embodiment of this utility model, a lifting bolt 10 is fixedly installed on the optical fiber pad 4 and the MT ferrule limiting groove 5, and a guide groove 901 is provided in the center of the locking rod 9 to slide and engage with the lifting bolt 10.

[0049] In this embodiment, the lifting bolt 10 ensures that the distance between the locking rod 9 and the fiber optic pad 4 and the MT ferrule limiting groove 5 is relatively constant, so that it can only move along the length direction of the fiber optic pad 4 and the MT ferrule limiting groove 5.

[0050] As a further embodiment of this utility model, two control grooves 1201 are symmetrically arranged on both sides of the center of the toothed plate 12, and two supporting columns 11 are fixedly installed on the fiber optic pad 4 and the MT ferrule limiting groove 5. The supporting columns 11 pass through the control grooves 1201 and slide with them.

[0051] In this embodiment, the lifting column 11 and the control groove 1201 slide together, so that the toothed plate 12 can only move along the direction perpendicular to the locking rods 9 on both sides. This ensures that when the toothed plate 12 moves, it can drive the gears 13 on both sides to rotate synchronously and in opposite directions, and finally drive the locking rods 9 on both sides to move closer to each other.

[0052] As a further embodiment of this utility model, the toothed plate 12 is fixed to the push rod 8 by an "L"-shaped connector, and the fiber optic pad 4 and the MT ferrule limiting groove 5 are provided with guide holes 7, and the push rod 8 is slidably inserted into the guide holes 7.

[0053] In this embodiment, by pressing the push rod 8, the toothed plate 12 can be moved along the direction perpendicular to the locking rods 9 on both sides by means of the "L"-shaped connector.

[0054] The above embodiments are exemplary and not restrictive. Therefore, without departing from the spirit or basic characteristics of this utility model, any technical solutions that can be implemented in other specific forms are included in this utility model.

Claims

1. An adjustable length clamp for an MT-Mini MT torsion jumper cable, comprising a base (6) and slide rails (2) fixedly disposed on both sides of the base (6) and arranged parallel to each other, characterized in that: The slide rail (2) is slidably provided with mutually parallel fiber pads (4) and MT ferrule limiting grooves (5). At the top of the two slide rails (2), there are MT-Mini ferrule limiting grooves (1) perpendicular to the slide rails (2) on both sides. The MT-Mini ferrule limiting grooves (1) are fixedly provided on the base (6). Both the fiber optic pad (4) and the MT ferrule limiting groove (5) are provided with pre-positioning components, which are adapted to multiple positioning notches (201) equidistantly arranged on the slide rail (2). Both sides of the fiber optic pad (4) and the MT ferrule limiting groove (5) are provided with bolt through slots, and fastening bolt holes (3) are provided at equal intervals on the slide rail (2).

2. The adjustable length clamp for an MT-Mini MT torsion jumper wire according to claim 1, characterized in that, The pre-positioning component includes locking rods (9) that are elastically and symmetrically arranged on both sides of the fiber pad (4) and the MT ferrule limiting groove (5). The locking rod (9) has a locking tip (902) that is adapted to the positioning notch (201) at one end facing the slide rail (2). The fiber optic pad (4) and the MT ferrule limiting groove (5) are also provided with a control structure that cooperates with the locking rod (9). The control structure can drive the locking rods (9) located on both sides to move closer to each other so that the locking tip (902) disengages from the positioning notch (201).

3. The adjustable length clamp for an MT-Mini MT torsion jumper wire according to claim 2, characterized in that, A guide sleeve (15) is also fixedly installed on the fiber optic pad (4) and the MT ferrule limiting groove (5). A top rod (16) is fixedly installed on the end of the locking rod (9) away from the locking tip (902). One end of the top rod (16) is slidably inserted into the guide sleeve (15). A compression spring (17) is sleeved on the outside of the top rod (16). One end of the compression spring (17) abuts against the end of the top rod (16), and the other end of the compression spring (17) abuts against the end of the guide sleeve (15).

4. The adjustable length clamp for an MT-Mini MT torsion jumper wire according to claim 2, characterized in that, The control structure includes a toothed plate (12) that is slidably disposed on the fiber pad (4) and the MT ferrule limiting groove (5) and is perpendicular to the locking rod (9). A gear (13) is provided on each side of the toothed plate (12), and the gear (13) is rotatably mounted on the optical fiber pad (4) and the MT ferrule limiting groove (5); The gear (13) is connected to the locking rod (9) via a connecting rod (14), wherein one end of the connecting rod (14) is hinged to the locking rod (9), and the other end of the connecting rod (14) is hinged to the eccentric part of the gear (13).

5. The adjustable length clamp for an MT-Mini MT torsion jumper wire according to claim 2, characterized in that, The fiber optic pad (4) and the MT ferrule limiting groove (5) are fixedly installed with lifting bolts (10), and the center of the locking rod (9) is provided with a guide groove (901) that slides and engages with the lifting bolts (10).

6. The adjustable length clamp for an MT-Mini MT torsion jumper wire according to claim 4, characterized in that, Two control slots (1201) are symmetrically arranged on both sides of the center of the toothed plate (12). Two lifting columns (11) are fixedly installed on the fiber pad (4) and the MT ferrule limiting slot (5). The lifting columns (11) pass through the control slots (1201) and slide with them.

7. An adjustable length clamp for an MT-Mini MT torsion jumper wire according to any one of claims 4 or 6, characterized in that, The toothed plate (12) is fixed to the push rod (8) by an "L"-shaped connector. The fiber pad (4) and the MT ferrule limiting groove (5) are provided with guide holes (7). The push rod (8) is slidably inserted into the guide hole (7).