High-performance sealing mechanism of optical fiber connector

Abstract

The invention relates to the technical field of optical fiber connectors, and discloses an optical fiber connector high-performance sealing mechanism which comprises a protection frame and a sealing frame. The sealing assembly is arranged in the sealing frame, and the sealing assembly is sealed at the optical fiber line body through a sealing ring in the sealing assembly; a connection port protection assembly; the connector protection assembly is arranged at one end of the protection frame; through the arrangement of the sealing assembly, dust entering the sealing frame is blocked through the sealing cylinder and the first external thread cylinder when the optical fiber is installed, and after the optical fiber is installed on the optical fiber connector, the first external thread cylinder is pulled downwards to drive the sealing cylinder and the sealing ring to move downwards, and the connecting rod moves to the narrow position below the moving frame to extrude the sealing ring, so that the optical fiber is installed. According to the optical fiber connector, the two sealing rings are closed to form a complete ring, and the sealing rings are tightly pressed on the optical fiber wire body sleeve for sealing, so that dust and dust in the air can be prevented from entering the optical fiber connector when the optical fiber is installed, and the influence of the dust on optical fiber transmission is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of optical fiber connectors, in particular to a high-performance sealing mechanism for an optical fiber connector. Background Art

[0002] Fiber optic connectors are devices that are used to make detachable connections between optical fibers. They precisely connect the two end faces of optical fibers so that the light energy output by the transmitting optical fiber can be coupled to the receiving optical fiber to the maximum extent possible, and the impact on the system caused by its involvement in the optical link can be minimized:

[0003] The Chinese patent application number is 201910891534.0. A sealing system for an optical fiber connector, this invention, includes a sealing system body and a sealing assembly, the sealing system body includes a sealing fixing part and a locking connection part, the sealing fixing part is fixedly connected to the sealing assembly, a locking part is integrally formed on the locking connection part, and an insertion gap is formed between the locking part and the locking connection part. The sealing system of the present invention has the advantages of quick installation, simple structure, simple production process, easy control of product quality, and not easily affected by harsh environments.

[0004] Nowadays, when installing optical fiber, the optical fiber is inserted from one end of the optical fiber connector, and the insertion point is sealed by a sealing sleeve with a thread on the inner wall. When installing the optical fiber, dust in the air will enter the interior of the optical fiber connector and is not easy to find and clean. The dust that enters the optical fiber connector is easy to adhere to the connection between the pin and the optical fiber, affecting the optical fiber transmission. Summary of the invention

[0005] The object of the present invention is to provide a high-performance sealing mechanism for an optical fiber connector to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A high-performance sealing mechanism for an optical fiber connector, comprising a protective frame and a sealing frame;

[0008] A sealing component, wherein the sealing component is arranged inside the sealing frame and the sealing component is sealed at the optical fiber body through a sealing ring therein;

[0009] A connection port protection component; the connection port protection component is arranged at one end of the protection frame, and the connection port protection component seals the connection port of the optical fiber connector through a third sealing ring therein;

[0010] A plurality of second clamps are arranged at the bottom of the inner wall of the protection frame, and a plurality of first clamps are arranged at the top of the outer wall of the sealing frame. The first clamps are engaged with the corresponding second clamps, and the protection frame is clamped on the sealing frame through the second clamps.

[0011] Optionally, the sealing assembly includes a first mounting frame, two movable frames, a connecting rod, two seals, and a sealing cylinder, wherein the first mounting frame is fixedly installed inside the sealing frame, the two movable frames are fixedly installed on both sides of the inner wall of the first mounting frame, one end of the connecting rod is slidably installed on the inner wall of the movable frame through a slider, the sealing ring is fixedly installed on the other end of the connecting rod, the sealing cylinder is fixedly installed on the bottom end of the sealing ring, and the two seals are fixedly installed between the two connecting rods.

[0012] Optionally, the sealing member is located at the bottom of the outer wall of the sealing ring.

[0013] Optionally, a first sealing ring is fixedly mounted on the top end of the sealing frame, a second externally threaded tube is fixedly mounted on the bottom end of the sealing frame, and a first externally threaded tube is fixedly mounted on the bottom end of the sealing tube.

[0014] Optionally, the first externally threaded barrel extends to the outside of the bottom end of the sealing frame, the outer walls of the first externally threaded barrel and the second externally threaded barrel are threadedly connected with sealing sleeves, and both ends of the inner wall of the sealing sleeves are respectively provided with internal threads.

[0015] Optionally, a guide tube is fixedly installed on the inner wall of the sealing tube, and the cross-section of the inner wall of the guide tube is gradually inclined in multiple sections from bottom to top, and the cross-section of the inner wall of the guide tube gradually becomes smaller from bottom to top.

[0016] Optionally, a plurality of sliding frames are provided at the top of the inner wall of the sealing frame, a clamping plate is slidably installed on one side of the sliding frame, two clamping plates are mirror-symmetrically installed inside the sealing frame, threaded holes are opened on the top of both sides of the sealing frame, the threaded holes correspond to the positions of the clamping plates, and the inner walls of the threaded holes are threadedly connected with screws.

[0017] Optionally, a second installation frame is fixedly installed on the inner wall of the protective frame, the first sealing ring is located at the bottom end of the inner wall of the protective frame, and a pin is fixedly installed on the inner wall of the second installation frame, and one end of the pin extends to the outside of the top of the protective frame.

[0018] Optionally, the connection port protection assembly includes a fixing ring, a plurality of mounting grooves, a paddle plate, a sliding frame, a plurality of movable rods and a fixing plate, the fixing ring is fixedly installed at the center of the top of the protection frame, the plug pin is located inside the fixing ring, a plurality of mounting grooves are opened at the top of the fixing ring, the paddle plate is rotatably installed on the wall of the mounting groove, the sliding frame is fixedly installed on the top of the protection frame, the sliding frame is located between the fixing ring and the plug pin, the movable rod is slidably installed on the top of the sliding frame, and the fixing plate is fixedly installed on the top of the movable rod.

[0019] Optionally, one side wall of the top opening of the inner wall of the movable frame is in an inclined and enlarged shape.

[0020] The present invention has at least the following beneficial effects:

[0021] (1) This solution sets a sealing assembly. When installing the optical fiber, the sealing cylinder and the first external thread cylinder block the dust entering the sealing frame. After the optical fiber is installed in the optical fiber connector, the first external thread cylinder is pulled downward to drive the sealing cylinder and the sealing ring to move downward. The connecting rod moves to the narrow part below the moving frame to squeeze the sealing ring so that the two sealing rings are closed into a complete ring. The sealing ring is pressed tightly on the optical fiber body sleeve to seal. When installing the optical fiber, dust and dirt in the air can be reduced from entering the optical fiber connector, thereby reducing the impact of dust on optical fiber transmission.

[0022] (2) In this solution, when the pin is inserted into other connecting devices, one end of the paddle is pressed against the surface of the connecting port shell of the connecting device to rotate the paddle, and the other end of the paddle is pressed against the bottom end of the fixed plate to press the third sealing ring against the surface of the connecting port shell of the connecting device, thereby sealing the pin. The operation is convenient and dust is prevented from entering the pin connection.

[0023] (3) This solution provides a guide tube, and when the optical fiber is inserted, the optical fiber can be guided by the multiple inclined surfaces of the inner wall of the guide tube, so that the optical fiber can be easily inserted into the pin;

[0024] (4) In this scheme, the connection between the two sealing rings is wavy, so that the connection is tighter when the sealing rings are engaged, and a sealing member is provided at the connection between the bottom end of the sealing ring and the sealing tube. When the sealing ring is closed, the deformation of the connection between the bottom end of the sealing ring and the sealing tube is blocked, thereby improving the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 It is a schematic diagram of the structure of the present invention;

[0027] Figure 2 This is a diagram of the installation of the sealing ring of the present invention;

[0028] Figure 3 It is a cross-sectional view of the present invention;

[0029] Figure 4 This is the installation diagram of the clamping plate of the present invention;

[0030] Figure 5 It is the guide tube diagram of the present invention;

[0031] Figure 6 This is the installation diagram of the dial plate of the present invention;

[0032] Figure 7 FIG. 2 is a sealing sleeve diagram of the present invention.

[0033] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0034] 1. Sealing frame; 101. First installation frame; 2. First sealing ring; 3. Moving frame; 4. Connecting rod; 5. Sealing ring; 6. Sealing element; 7. Sealing cylinder; 8. Guide cylinder; 9. First externally threaded cylinder; 10. Second externally threaded cylinder; 11. First clamp; 12. Sliding frame; 13. Clamping plate; 14. Protective frame; 15. Second clamp; 16. Second installation frame; 17. Insert pin; 18. Fixed ring; 19. Installation groove; 20. Switch plate; 21. Sliding frame; 22. Moving rod; 23. Fixed plate; 24. Third sealing ring; 25. Sealing sleeve. DETAILED DESCRIPTION

[0035] 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 described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figure 1-Figure 7The present invention provides a high-performance sealing mechanism for an optical fiber connector. The sealing mechanism mainly includes a protective frame 14 for protecting the internal structure and a sealing frame 1 for accommodating a sealing component. The sealing frame 1 is designed with a first sealing ring 2 to enhance the sealing performance, and a second external threaded barrel 10 is installed at the bottom to connect with other components. The sealing component mainly consists of a first mounting frame 101, two moving frames 3, a connecting rod 4, a sealing ring 5, a sealing member 6 and a sealing barrel 7. The first mounting frame 101 is fixed inside the sealing frame 1, and moving frames 3 are provided on both sides thereof. The connecting rod 4 is connected to the moving frame 3 through a slider, and a sealing ring 5 is fixed at its end. The sealing cylinder 7 is fixed at the bottom end of the sealing ring 5, and the sealing member 6 is installed between the two connecting rods 4 and located at the bottom of the outer wall of the sealing ring 5 to further improve the sealing effect; by setting the sealing assembly, when installing the optical fiber, the sealing cylinder 7 and the first externally threaded cylinder 9 are used to block dust from entering the sealing frame 1, and after the optical fiber is installed in the optical fiber connector, the first externally threaded cylinder 9 is pulled downward to drive the sealing cylinder 7 and the sealing ring 5 to move downward, and the connecting rod 4 moves to the narrow part below the moving frame 3 to squeeze the sealing ring 5 so that the two sealing rings 5 ​​are closed into a complete ring, and the sealing ring 5 is pressed tightly on the optical fiber body sleeve for sealing, which can reduce the dust and dust in the air from entering the optical fiber connector when installing the optical fiber, and reduce the influence of dust on optical fiber transmission.

[0037] The sealing member 6 is located at the bottom of the outer wall of the sealing ring 5, and one side wall of the top opening of the inner wall of the moving frame 3 is in an inclined and enlarged shape; the top of the inner wall of the moving frame 3 is a surface inclined downward, and the middle and bottom ends are divided into surfaces connected to the inclined portion, and the connecting rod 4 can slide up and down at the top in the moving frame 3, and can also move slightly in the direction perpendicular to the moving frame 3. When the connecting rod 4 moves to the middle part and the bottom of the moving frame 3, it can only slide in the moving frame 3. At this time, the two connecting rods 4 close the two sealing rings 5 ​​from two opposite directions, and press the sealing rings 5 ​​tightly against the optical fiber line sleeve.

[0038] In some embodiments, see Figure 5 , Figure 7 The first externally threaded barrel 9 and the second externally threaded barrel 10 are both threaded and can cooperate with the thread in the sealing sleeve 25, so that the sealing degree can be adjusted by rotating the sealing sleeve 25. The first externally threaded barrel 9 and the second externally threaded barrel 10 are both threaded and can cooperate with the thread in the sealing sleeve 25, so that the sealing degree can be adjusted by rotating the sealing sleeve 25; the first sealing ring 2 is used to seal the connection between the sealing frame 1 and the protective frame 14, and the sealing sleeve 25 is threadedly connected to the first externally threaded barrel 9 and the second externally threaded barrel 10, and can seal the end of the sealing frame 1 where the optical fiber is inserted.

[0039] In some embodiments, see Figure 3A guide tube 8 is installed inside the sealing tube 7, and its inner wall section is gradually inclined and gradually becomes smaller from bottom to top, which can help the optical fiber line body to be smoothly inserted and positioned while maintaining a good sealing state. A sliding frame 12 is set at the top of the inner wall of the sealing frame 1, and a clamping plate 13 is slidably installed in each sliding frame 12. The two clamping plates 13 are symmetrically arranged inside the sealing frame 1, and the distance between them can be adjusted by rotating the screws to adapt to optical fiber lines of different diameters. The inner wall of the threaded hole is threaded with a screw, and the inner wall of the protective frame 14 is fixedly installed with a second installation frame 16. The first sealing ring 2 is located at the bottom end of the inner wall of the protective frame 14, and the inner wall of the second installation frame 16 is fixedly installed with a pin 17, and one end of the pin 17 extends to the outside of the top of the protective frame 14; by setting the guide tube 8, when the optical fiber is inserted, the optical fiber can be guided through the multiple inclined surfaces of the inner wall of the guide tube 8, so that the optical fiber can be easily inserted into the pin 17.

[0040] In this example, a clamping plate 13 is provided. After the optical fiber is inserted into the pin 17, a screw is screwed into the threaded hole. One end of the screw supports the movement of the clamping plate 13. The two clamping plates 13 clamp the optical fiber sleeve to fix the optical fiber.

[0041] In this example, the connection between the two sealing rings 5 ​​is wavy, so that when the sealing rings 5 ​​are engaged, the connection is tighter, and a sealing member 6 is provided at the connection between the bottom end of the sealing ring 5 and the sealing tube 7. When the sealing ring 5 is closed, the deformation of the connection between the bottom end of the sealing ring 5 and the sealing tube 7 is blocked to improve the sealing performance.

[0042] In some embodiments, see Figure 6 The connector protection assembly is mainly composed of a fixing ring 18, a mounting groove 19, a dial plate 20, a sliding frame 21, a moving rod 22 and a fixing plate 23. The fixing ring 18 is fixed at the top center of the protection frame 14 to protect the pin 17; the mounting groove 19 is opened at the top of the fixing ring 18, and the dial plate 20 is rotatably installed in these grooves; the sliding frame 21 is located between the fixing ring 18 and the pin 17, the moving rod 22 can slide on the sliding frame 21, and the fixing plate 23 is fixed at the top of the moving rod 22 to fix the position of the entire assembly. The fixing plate 23 is fixedly installed at the top of the moving rod 22; when the pin 17 is inserted into other connecting devices, one end of the dial plate 20 presses on the surface of the connecting device connector housing to rotate the dial plate 20, and the other end of the dial plate 20 abuts against the bottom end of the fixing plate 23, so that the third sealing ring 24 presses on the surface of the connecting device connector housing to seal the pin 17, and the operation is convenient to prevent dust from entering the pin 17 connection.

[0043] Here’s how it works:

[0044] Before the optical fiber is inserted, the sealing ring 5 is in a non-closed state, and the connecting rod 4 is located at the wider part of the moving frame 3. At this time, the sealing ring 5 is not completely closed.

[0045] When the optical fiber needs to be inserted, it first needs to overcome the obstruction formed by the sealing tube 7 and the first external threaded tube 9, which can prevent external dust from entering the interior of the sealing frame 1. The optical fiber is smoothly inserted and positioned in the correct position under the guidance of the guide tube 8. The interior of the guide tube 8 is designed to gradually tilt and become smaller from bottom to top, so that the optical fiber can be smoothly inserted.

[0046] After the optical fiber is inserted and positioned, the position of the first external threaded tube 9 is adjusted by rotating the sealing sleeve 25, thereby driving the sealing tube 7 and the sealing ring 5 to move downward. When the connecting rod 4 moves to the narrower part below the moving frame 3, it squeezes the sealing ring 5, closing it into a complete ring shape and pressing it against the optical fiber body sleeve. In this process, the sealing member 6 is located at the bottom of the outer wall of the sealing ring 5. When the sealing ring 5 is closed, the sealing member 6 will block the deformation of the connection between the bottom end of the sealing ring 5 and the sealing tube 7, thereby increasing the sealing performance.

[0047] In order to further fix the optical fiber, the distance between the clamping plates 13 is adjusted by rotating the screws, so that the two symmetrically arranged clamping plates 13 can clamp the sleeve of the optical fiber to ensure that the optical fiber will not loosen due to external force or vibration. In order to protect the pin 17, a fixing ring 18 is fixed at the top center of the protective frame 14, and a mounting groove 19 is provided at the top of the fixing ring 18, and a paddle plate 20 is rotatably installed in the groove. The sliding frame 21 is located between the fixing ring 18 and the pin 17, the moving rod 22 can slide on the sliding frame 21, and the fixing plate 23 is fixed to the top of the moving rod 22. When the pin 17 is inserted into other connecting devices, one end of the paddle plate 20 will press on the surface of the outer shell of the connecting port of the connecting device, causing the paddle plate 20 to rotate and the third sealing ring 24 to be pressed against the surface of the outer shell of the connecting port of the connecting device, thereby sealing the pin 17.

[0048] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-performance sealing mechanism for an optical fiber connector, characterized in that: include: A protective frame (14) and a sealing frame (1); A sealing component, the sealing component is arranged inside the sealing frame (1), and the sealing component is sealed at the optical fiber body through a sealing ring (5) therein; A connection port protection component; the connection port protection component is arranged at one end of the protection frame (14), and the connection port protection component seals the optical fiber connector connection port through a third sealing ring (24) therein; A plurality of second clamping members (15) are arranged at the bottom of the inner wall of the protection frame (14), and a plurality of first clamping members (11) are arranged at the top of the outer wall of the sealing frame (1). The first clamping members (11) and the corresponding second clamping members (15) are engaged with each other, and the protection frame (14) is clamped onto the sealing frame (1) via the second clamping members (15).

2. The high-performance sealing mechanism for an optical fiber connector according to claim 1, characterized in that: The sealing assembly comprises a first mounting frame (101), two movable frames (3), a connecting rod (4), two sealing members (6), and a sealing cylinder (7); the first mounting frame (101) is fixedly mounted inside the sealing frame (1); the two movable frames (3) are fixedly mounted on both sides of the inner wall of the first mounting frame (101); one end of the connecting rod (4) is slidably mounted on the inner wall of the movable frame (3) via a slider; the sealing ring (5) is fixedly mounted on the other end of the connecting rod (4); the sealing cylinder (7) is fixedly mounted on the bottom end of the sealing ring (5); and the two sealing members (6) are fixedly mounted between the two connecting rods (4).

3. A high-performance sealing mechanism for an optical fiber connector according to claim 2, characterized in that: The sealing member (6) is located at the bottom of the outer wall of the sealing ring (5).

4. The high-performance sealing mechanism for an optical fiber connector according to claim 2, characterized in that: A first sealing ring (2) is fixedly mounted on the top end of the sealing frame (1), a second externally threaded cylinder (10) is fixedly mounted on the bottom end of the sealing frame (1), and a first externally threaded cylinder (9) is fixedly mounted on the bottom end of the sealing cylinder (7).

5. The high-performance sealing mechanism for an optical fiber connector according to claim 4, characterized in that: The first externally threaded barrel (9) extends to the outside of the bottom end of the sealing frame (1); the outer walls of the first externally threaded barrel (9) and the second externally threaded barrel (10) are threadedly connected with a sealing sleeve (25); and the inner walls of the sealing sleeve (25) are respectively provided with internal threads at both ends.

6. The high-performance sealing mechanism for an optical fiber connector according to claim 2, characterized in that: A guide tube (8) is fixedly mounted on the inner wall of the sealing tube (7); the inner wall section of the guide tube (8) is gradually inclined in multiple sections from bottom to top, and the inner wall section of the guide tube (8) gradually becomes smaller from bottom to top.

7. The high-performance sealing mechanism for an optical fiber connector according to claim 1, characterized in that: A plurality of sliding frames (12) are arranged at the top of the inner wall of the sealing frame (1), a clamping plate (13) is slidably mounted on one side of the sliding frame (12), two clamping plates (13) are mounted in a mirror-symmetrical manner inside the sealing frame (1), threaded holes are opened at the top of both sides of the sealing frame (1), the threaded holes correspond to the positions of the clamping plates (13), and the inner walls of the threaded holes are threadedly connected with screws.

8. The high-performance sealing mechanism for an optical fiber connector according to claim 4, characterized in that: A second mounting frame (16) is fixedly mounted on the inner wall of the protective frame (14); the first sealing ring (2) is located at the bottom end of the inner wall of the protective frame (14); a plug pin (17) is fixedly mounted on the inner wall of the second mounting frame (16); one end of the plug pin (17) extends to the outside of the top end of the protective frame (14).

9. The high-performance sealing mechanism for an optical fiber connector according to claim 8, characterized in that: The connection port protection assembly comprises a fixing ring (18), a plurality of mounting grooves (19), a dial plate (20), a sliding frame (21), a plurality of moving rods (22) and a fixing plate (23); the fixing ring (18) is fixedly mounted at the top center of the protection frame (14); the plug pin (17) is located inside the fixing ring (18); a plurality of the mounting grooves (19) are opened at the top of the fixing ring (18); the dial plate (20) is rotatably mounted on the groove wall of the mounting groove (19); the sliding frame (21) is fixedly mounted at the top of the protection frame (14); the sliding frame (21) is located between the fixing ring (18) and the plug pin (17); the moving rod (22) is slidably mounted at the top of the sliding frame (21); and the fixing plate (23) is fixedly mounted at the top of the moving rod (22).

10. The high-performance sealing mechanism for an optical fiber connector according to claim 2, characterized in that: One side wall of the top opening of the inner wall of the movable frame (3) is in an inclined and enlarged shape.

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