Dustproof cap for MT insertion core

Abstract

The utility model provides a dustproof cap used for an MT insertion core, comprising a cap body, one end of which is inwardly provided with an insertion cavity matched with an insertion part of an MT insertion core body so as to cover an insertion end face; the sealing part comprises a mounting rod rotationally arranged on the cap body, a fixing plate fixedly mounted at the top end of the mounting rod, a sealing plate arranged on the mounting rod in a sliding and sleeving mode and located below the fixing plate and a rotating rod in threaded connection with the fixing plate, and the bottom end of the rotating rod penetrates through the fixing plate and is rotationally connected with the sealing plate; the rotating rod is rotated to drive the sealing plate to move in the axis direction of the mounting rod, so that the sealing plate abuts against the outer end face of the MT insertion core body. According to the dustproof cap used for the MT insertion core, through arranging the cap body and the sealing member, two sides of the guide hole on the MT insertion core body are sealed so that a problem that impurities such as dust, dirt and small particles enter the end surface of the MT insertion core body from the guide hole and thus a fiber core on the end surface of the MT insertion core body is dirty or a fiber core channel is blocked is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of MT ferrule dust prevention, and particularly relates to a dust cap for an MT ferrule. Background Art

[0002] An MT ferrule is a connecting component for an optical fiber connector, usually used in data centers, telecommunication networks, and other high-density optical fiber applications. It is internally provided with a channel for fixing an optical fiber and uses the guiding holes on both sides as docking references. In order to maintain its optical performance and connection quality, it is necessary to perform dust prevention treatment when it is not in use.

[0003] Currently, a dust cap is generally worn on the MT ferrule to protect its plugging end face, preventing dust, dirt, and tiny particles from adhering to the end face and the guiding holes on both sides of the MT ferrule. However, since only the end face is protected singly, dust, dirt, and tiny particles will enter the end face of the MT ferrule from the other side of the guiding holes on both sides, causing the fiber core of the end face of the MT ferrule to be soiled or causing the blockage of the fiber core channel, resulting in scattering and absorption during the transmission of optical signals, thereby increasing signal attenuation and reducing the quality and reliability of data transmission. Summary of the Utility Model

[0004] Aiming at the deficiencies in the prior art, the utility model provides a dust cap for an MT ferrule to solve the technical problems in the above background art.

[0005] The utility model provides a dust cap for an MT ferrule, including:

[0006] A cap body, with an insertion cavity adapted to the insertion part of the MT ferrule body opened inward at one end to cover its plugging end face;

[0007] A seal, including a mounting rod rotatably arranged on the cap body, a fixing plate fixedly installed at the top of the mounting rod, a sealing plate slidably sleeved on the mounting rod and located below the fixing plate, and a rotating rod threadedly connected to the fixing plate. The bottom end of the rotating rod penetrates through the fixing plate and is rotatably connected to the sealing plate, so as to drive the sealing plate to move along the axis of the mounting rod by rotating the rotating rod, so that the sealing plate abuts against or separates from the outer end face of the MT ferrule body.

[0008] Further, a sealing column inserted into the guiding hole on the outer end face of the MT ferrule body is arranged below the sealing plate.

[0009] Further, a knob is fixedly installed at the upper end of the rotating rod.

[0010] Further, a first spring is sleeved on the outer surface of the mounting rod between the fixed plate and the sealing plate, and two ends of the first spring are fixedly connected to the fixed plate and the sealing plate respectively.

[0011] Further, a second spring is sleeved on the outer surface of the rotating rod between the fixed plate and the sealing plate, and two ends of the second spring are fixedly connected to the fixed plate and the sealing plate respectively.

[0012] Further, an annular groove is formed on the side surface of the middle section of the insertion cavity, and a sealing ring fitting the annular groove is clamped on the annular groove.

[0013] Further, the cap body includes a fixed end and an insertion end, the width of the fixed end is greater than that of the insertion end, and the insertion cavity is formed inwardly at one end of the insertion end.

[0014] Further, an operation part is arranged on the fixed end of the cap body, and a plurality of anti-slip lines and / or anti-slip grooves are arranged on the operation part.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] For the dust cap for MT ferrule of the utility model, by arranging the cap body and the sealing member, both sides of the guiding hole on the MT ferrule body are sealed, so as to prevent impurities such as dust, dirt and tiny particles from entering the end face of the MT ferrule body through the guiding hole, resulting in the contamination of the fiber core on the end face of the MT ferrule or the blockage of the fiber core channel, which causes scattering and absorption during the optical signal transmission, thereby increasing the signal attenuation and reducing the quality and reliability of data transmission.

[0017] For the dust cap for MT ferrule of the utility model, when it is necessary to cover the dust cap, the insertion cavity of the cap body is aligned with the insertion end face of the MT ferrule body, and then the rotating rod is rotated. The rotation of the rotating rod will drive the sealing plate to move downward along the axis of the mounting rod until the sealing plate is in close contact with the outer end face of the MT ferrule body to form a seal, preventing impurities such as dust, dirt and tiny particles from entering the end face of the MT ferrule body through the guiding hole; when it is necessary to remove the dust cap, the rotating rod is rotated in the reverse direction, the sealing plate moves upward along the mounting rod and separates from the MT ferrule body, and then the cap body can be easily removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the assembled dust cap for MT ferrule according to an embodiment of the utility model Figure 1 ;

[0019] Figure 2 is Figure 1 a partial enlarged schematic diagram in

[0020] Figure 3 Exploded structural schematic diagram of a dust cap for an MT ferrule after assembly according to an embodiment of the present utility model;

[0021] Figure 4 Structural schematic diagram of a dust cap for an MT ferrule according to an embodiment of the present utility model;

[0022] Figure 5 Structural schematic diagram of an MT ferrule body;

[0023] Explanation of the reference numerals in the attached drawings:

[0024] 10. Cap body; 11. Insertion cavity; 12. Sealing ring; 13. Fixed end; 14. Insertion end; 15. Operation part;

[0025] 20. Sealing member; 21. Installation rod; 22. Fixed plate; 23. Sealing plate; 24. Rotating rod; 25. Sealing column; 26. Knob; 27. First spring; 28. Second spring;

[0026] 30. MT ferrule body; 31. Insertion part; 32. Guide hole.

[0027] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0028] In order to make the purpose, technical solutions and beneficial effects of the present utility model clearer, the technical solutions in the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0029] In the description of the present utility model, it should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limited conditions under which the present utility model can be implemented. Therefore, they do not have a technical essence. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present utility model can produce and the purpose that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in this specification are only for the convenience of clear description and are not used to limit the scope under which the present utility model can be implemented. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope within which the present utility model can be implemented.

[0030] Such as Figures 1-4As shown in the figure, an embodiment of the present utility model provides a dust cap for an MT ferrule, which includes a cap body 10 and a seal 20 disposed on the cap body 10. One end of the cap body 10 is internally provided with an insertion cavity 11 adapted to the insertion portion 31 of the MT ferrule body 30 to cover the insertion end face thereof and shield the optical fiber channel and the guide hole 32 on the insertion end face. The seal 20 includes a mounting rod 21 rotatably disposed on the cap body 10, a fixing plate 22 fixedly installed at the top end of the mounting rod 21, a sealing plate 23 slidably sleeved on the mounting rod 21 and located below the fixing plate 22, and a rotating rod 24 threadedly connected to the fixing plate 22. The bottom end of the rotating rod 24 penetrates through the fixing plate 22 and is rotatably connected to the sealing plate 23, so as to drive the sealing plate 23 to move along the axis direction of the mounting rod 21 by rotating the rotating rod 24, so that the sealing plate 23 abuts against or separates from the outer end face of the MT ferrule body 30.

[0031] In the embodiment of the present utility model, when it is necessary to cover the dust cap, the insertion cavity 11 of the cap body 10 is aligned with the insertion end face of the MT ferrule body 30, and then the rotating rod 24 is rotated. The rotation of the rotating rod 24 will drive the sealing plate 23 to move downward along the axis direction of the mounting rod 21 until the sealing plate 23 is in close contact with the outer end face of the MT ferrule body 30 to form a seal, preventing impurities such as dust, dirt, and tiny particles from entering the end face of the MT ferrule body 30 through the guide hole 32. When it is necessary to remove the dust cap, the rotating rod 24 is rotated in the reverse direction, the sealing plate 23 moves upward along the mounting rod 21 and separates from the MT ferrule body 30, and then the cap body 10 can be easily removed.

[0032] Based on the above solution, as Figures 2-3 shown, in the embodiment of the present utility model, a sealing column 25 is disposed below the sealing plate 23 and inserted into the guide hole 32 on the outer end face of the MT ferrule body 30. The sealing column 25 further seals the guide hole 32 on the outer end face of the MT ferrule body 30 to form a double seal, improving the sealing effect between the dust cap and the MT ferrule.

[0033] Specifically, as Figures 2-3 shown, in the embodiment of the present utility model, one end of the sealing column 25 inserted into the guide hole 32 is conical. The conical design makes it easier for the sealing column 25 to be aligned and inserted into the guide hole 32, thereby improving the sealing efficiency.

[0034] Based on the above solution, as Figures 2-3 shown, in the embodiment of the present utility model, a knob 26 is fixedly installed at the upper end of the rotating rod 24 for easy operation by personnel.

[0035] Based on the above solution, as Figures 2-3As shown in the figure, in the embodiment of the present utility model, a first spring 27 is sleeved on the outer surface of the mounting rod 21 between the fixing plate 22 and the sealing plate 23, and both ends of the first spring 27 are fixedly connected to the fixing plate 22 and the sealing plate 23 respectively; a second spring 28 is sleeved on the outer surface of the rotating rod 24 between the fixing plate 22 and the sealing plate 23, and both ends of the second spring 28 are fixedly connected to the fixing plate 22 and the sealing plate 23 respectively. By arranging the first spring 27 and the second spring 28, when the knob 26 is released, the first spring 27 and the second spring 28 will provide an upward elastic force, causing the sealing plate 23 to automatically move away from the outer end face of the MT ferrule body 30, facilitating the user to remove the cap body 10; specifically, rotate the knob 26 in the reverse direction (counterclockwise), causing the rotating rod 24 to move upward, releasing the compression force of the second spring 28. The restoring force of the second spring 28 will cause the rotating rod 24 to move upward, and at the same time, the restoring force of the first spring 27 will also push the sealing plate 23 upward, causing it to disengage from the outer end face of the MT ferrule body 30. When the sealing column 25 on the sealing plate 23 completely disengages from the guiding hole 32, the cap body 10 can be easily removed.

[0036] Based on the above solution, as Figures 3-4 shown, in the embodiment of the present utility model, an annular groove is formed on the side surface of the middle section of the insertion cavity 11, and a sealing ring 12 that fits with the annular groove is clamped on the annular groove. The sealing ring 12 can be closely attached to the insertion portion 31 of the MT ferrule body 30. Multiple annular grooves and sealing rings 12 can be arranged in the insertion cavity 11 to further improve the sealing effect.

[0037] Specifically, as Figure 3 shown, in the embodiment of the present utility model, the cap body 10 includes a fixed end 13 and an insertion end 14. The width of the fixed end 13 is greater than the width of the insertion end 14, and the insertion cavity 11 is formed inwardly at one end of the insertion end 14.

[0038] Based on the above solution, as Figure 3 shown, in the embodiment of the present utility model, an operating portion 15 is provided on the fixed end 13 of the cap body 10. A number of anti-slip lines and / or anti-slip grooves are provided on the operating portion 15. With the cooperation of the operating portion 15 and the anti-slip lines or anti-slip grooves, it is convenient to install and remove the cap body 10, avoiding slipping and affecting the operation. Among them, multiple operating portions 15 are provided and the operating portions 15 are symmetrically arranged on the opposite two outer surfaces of the fixed end 13 of the cap body 10, and are at least provided on at least one set of opposite outer surfaces, thereby making the grasping firm during the installation and removal process.

[0039] The working process of the jig provided in this embodiment is as follows:

[0040] When it is necessary to cover the dust cap, first rotate the mounting rod 21 to move the sealing plate 23 away from the insertion surface of the insertion cavity 11. Then align the insertion cavity 11 of the cap body 10 with the insertion end face of the MT ferrule body 30. Next, rotate the mounting rod 21 so that the sealing plate 23 is located above the MT ferrule body 30. After that, rotate the rotating rod 24. The rotation of the rotating rod 24 will drive the sealing plate 23 to move downward along the axis of the mounting rod 21 until the sealing plate 23 is in close contact with the outer end face of the MT ferrule body 30 to form a seal, preventing impurities such as dust, dirt, and tiny particles from entering the end face of the MT ferrule body 30 through the guiding hole 32.

[0041] When it is necessary to remove the dust cap, rotate the rotating rod 24 in the reverse direction, and the sealing plate 23 will move upward along the mounting rod 21. Then rotate the mounting rod 21 so that it is located outside the MT ferrule body 30 to separate it from the MT ferrule body 30. Then the cap body 10 can be removed.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A dust cap for an MT ferrule, characterized in that, Comprising: A cap body (10), one end of which is internally provided with an insertion cavity (11) adapted to the insertion portion (31) of the MT ferrule body (30) to cover the insertion end face thereof. A seal (20) includes a mounting rod (21) rotatably arranged on the cap body (10), a fixing plate (22) fixedly mounted at the top end of the mounting rod (21), a sealing plate (23) slidably sleeved on the mounting rod (21) and located below the fixing plate (22), and a rotating rod (24) threadedly connected to the fixing plate (22). The bottom end of the rotating rod (24) penetrates through the fixing plate (22) and is rotatably connected to the sealing plate (23), so as to drive the sealing plate (23) to move along the axial direction of the mounting rod (21) by rotating the rotating rod (24), so that the sealing plate (23) abuts against or separates from the outer end face of the MT ferrule body (30).

2. The dust cap for an MT ferrule according to claim 1, wherein Below the sealing plate (23), a sealing column (25) is provided which is inserted into a guiding hole (32) on the outer end face of the MT ferrule body (30).

3. The dust cap for MT ferrule according to claim 2, characterized in that, A knob (26) is fixedly mounted at the upper end of the rotating rod (24).

4. The dust cap for MT ferrule according to claim 2, characterized in that, A first spring (27) is sleeved on the outer surface of the mounting rod (21) between the fixing plate (22) and the sealing plate (23), and both ends of the first spring (27) are fixedly connected to the fixing plate (22) and the sealing plate (23) respectively.

5. The dust cap for an MT ferrule according to claim 4, characterized in that, A second spring (28) is sleeved on the outer surface of the rotating rod (24) between the fixing plate (22) and the sealing plate (23), and both ends of the second spring (28) are fixedly connected to the fixing plate (22) and the sealing plate (23) respectively.

6. A dust cap for an MT ferrule according to claim 1, characterized in that, A ring groove is provided on the middle side surface of the insertion cavity (11), and a sealing ring (12) which fits the ring groove is clamped on the ring groove.

7. A dust cap for an MT ferrule according to any one of claims 1-6, characterized in that, The cap body (10) includes a fixed end (13) and an insertion end (14), the width of the fixed end (13) is greater than that of the insertion end (14), and the insertion cavity (11) is internally opened at one end of the insertion end (14).

8. A dust cap for an MT ferrule according to claim 7, characterized in that, An operation portion (15) is provided on the fixed end (13) of the cap body (10), and a plurality of anti-slip lines and / or anti-slip grooves are provided on the operation portion (15).

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