High-performance single-mode fiber lens collimation connector

Abstract

The utility model relates to the technical field of optical fiber collimators, in particular to a high-performance single-mode optical fiber lens collimation connector which comprises a shell, a mounting hole is formed in the shell, and positioning holes are formed in four corners of one end of the outer portion of the shell. After a limiting frame is installed on a shell, a connecting plate is loosened, limitation of a reset spring is relieved, and the connecting plate is driven to reset, so that a limiting rod is driven to be connected into a limiting hole, the limiting frame is conveniently fixed to the shell, a lens is limited and fixed, and an optical fiber is inserted between two limiting arc plates; and the two limiting arc plates are far away from each other and compress the second telescopic rod and the compression spring so as to fix the optical fiber between the two limiting arc plates, so that the problems that a traditional optical fiber lens collimation connector is inconvenient to install and inconvenient to disassemble, assemble and maintain are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber collimators, in particular to a high-performance single-mode optical fiber lens collimation connector. Background Art

[0002] The full name of optical fiber is optical fiber. It is a medium that uses the principle of total reflection of light to transmit information. It consists of three parts: core, cladding and coating. The core is the core part of the optical fiber, usually made of high-purity silica with a high refractive index. When using a fiber collimator, the optical fiber is usually inserted into the inside of a fiber lens collimator connector. Fiber lens collimator connectors are widely used in optical communication systems. Fiber lens collimator connectors are mainly composed of single-mode pigtails and collimating lenses. The basic principle is to use the principle of light refraction to convert the divergent light emitted from the optical fiber into parallel light through a lens, or to couple the parallel light into the optical fiber for transmission. In this way, the light beam that originally diverged rapidly in the air is effectively converted into a parallel light beam for long-distance transmission, thereby greatly improving the transmission distance and stability of the optical signal. Traditional fiber lens collimator connectors are inconvenient to install and are not easy to disassemble and maintain, resulting in increased labor intensity for staff, so there are certain disadvantages.

[0003] In summary, the utility model solves the existing problems by designing a high-performance single-mode optical fiber lens alignment connector. Utility Model Content

[0004] The purpose of the utility model is to provide a high-performance single-mode optical fiber lens alignment connector to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A high-performance single-mode fiber lens alignment connector comprises a shell, a mounting hole is provided inside the shell, positioning holes are provided at four corners of one end of the outer shell, a fixing block is symmetrically installed at one end of two outer side surfaces of the shell, a limiting hole is provided on the outer surface of the fixing block, a lens is installed inside the positioning hole, a limiting frame is installed at one end of the outer shell and located on the lens, positioning rods are installed at four corners of the wider outer side surface of the limiting frame, a first telescopic rod is installed on both narrower outer side surfaces of the limiting frame, a reset spring is installed on the outer ring surface of the first telescopic rod, a connecting plate is installed at one end of the first telescopic rod, and a limiting rod is installed at one end of the outer side surface of the connecting plate and away from the first telescopic rod;

[0007] An installation frame is installed on the end of the outer shell away from the limit frame, a fixing ring is installed on the outer end of the installation frame, a back cover is installed on the outer ring surface of the fixing ring, an aperture is installed on the inner end of the installation frame close to the outer shell, a circular ring is installed inside the installation frame, second telescopic rods are symmetrically installed on the top and bottom ends of the inner side wall of the circular ring, a compression spring is installed on the outer ring surface of the second telescopic rod, a limiting arc plate is installed on one end of the second telescopic rod, and a protective pad is installed on the inner wall of the limiting arc plate.

[0008] As a preferred solution of the utility model, the outer annular surface of the lens is slidably connected to the inside of the mounting hole, and a through hole is opened on the outside of the limit frame to fix the lens inside the shell and one end of the lens is located outside the limit frame.

[0009] As a preferred solution of the utility model, the size of the outer ring surface of the positioning rod matches the size of the inner wall of the positioning hole, and the outer ring surface of the positioning rod is slidably connected to the inner wall of the positioning hole.

[0010] As a preferred solution of the utility model, the size of the outer ring surface of the limiting rod matches the size of the inner side wall of the limiting hole, and the outer ring surface of the limiting rod is slidably connected to the inner side wall of the limiting hole.

[0011] As a preferred solution of the utility model, a thread is arranged on the outer ring surface of the fixing ring, and the outer ring surface of the fixing ring is threadedly connected to the inner side wall of the rear cover.

[0012] As a preferred solution of the utility model, the outer ring surface of the circular ring is slidably connected to the inner side wall of the installation frame.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, a high-performance single-mode fiber lens alignment connector is designed. After the limit frame is installed on the housing and the connecting plate is loosened, the restriction of the reset spring is released, driving the connecting plate to reset, thereby driving the limit rod to access the inside of the limit hole, so as to facilitate fixing the limit frame on the housing to limit and fix the lens. The optical fiber is inserted between the two limit arc plates. The two limit arc plates move away from each other and compress the second telescopic rod and the compression spring to fix the optical fiber between the two limit arc plates, thereby effectively solving the problem that the traditional fiber lens alignment connector is inconvenient to install and inconvenient to disassemble and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 For this utility model Figure 1 Structural layer diagram;

[0017] Figure 3 For this utility model Figure 1 Schematic diagram of the internal structure;

[0018] Figure 4 For this utility model Figure 1 A schematic diagram of some structures;

[0019] Figure 5 For this utility model Figure 3 Schematic diagram of the internal structure.

[0020] In the figure: 1. housing; 101. mounting hole; 102. positioning hole; 2. fixing block; 201. limiting hole; 3. lens; 4. limiting frame; 5. positioning rod; 6. first telescopic rod; 7. reset spring; 8. connecting plate; 9. limiting rod; 10. mounting frame; 11. fixing ring; 12. back cover; 13. aperture; 14. circular ring; 15. second telescopic rod; 16. compression spring; 17. limiting arc plate; 18. protective pad. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0023] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may also be a central element. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0025] For examples, see Figure 1-5 , the utility model provides a technical solution:

[0026] A high-performance single-mode optical fiber lens alignment connector comprises a shell 1, a mounting hole 101 is provided inside the shell 1, positioning holes 102 are provided at four corners of one end of the outer side of the shell 1, a fixing block 2 is symmetrically installed at one end of the two outer side surfaces of the shell 1, a limiting hole 201 is provided on the outer surface of the fixing block 2, a lens 3 is installed inside the positioning hole 102, a limiting frame 4 is installed at one end of the outer side of the shell 1 and located on the lens 3, positioning rods 5 are installed at four corners of the wider outer side of the limiting frame 4, first telescopic rods 6 are installed on both sides of the narrower outer side of the limiting frame 4, a reset spring 7 is installed on the outer ring surface of the first telescopic rod 6, a connecting plate 8 is installed at one end of the first telescopic rod 6, and a limiting rod 9 is installed at one end of the outer side of the connecting plate 8 and away from the first telescopic rod 6;

[0027] An installation frame 10 is installed at the end of the outer shell 1 away from the limit frame 4, a fixing ring 11 is installed at the outer end of the installation frame 10, a back cover 12 is installed on the outer ring surface of the fixing ring 11, an aperture 13 is installed at the inner end of the installation frame 10 close to the outer shell 1, a circular ring 14 is installed inside the installation frame 10, a second telescopic rod 15 is symmetrically installed at the top and bottom ends of the inner wall of the circular ring 14, a compression spring 16 is installed on the outer ring surface of the second telescopic rod 15, a limiting arc plate 17 is installed at one end of the second telescopic rod 15, and a protective pad 18 is installed on the inner wall of the limiting arc plate 17.

[0028] Specifically, refer to Figure 1 , Figure 2 and Figure 4 The outer ring surface size of the limit rod 9 matches the inner wall size of the limit hole 201, and the outer ring surface of the limit rod 9 is slidably connected to the inner wall of the limit hole 201, thereby ensuring that by pulling the two connecting plates 8 outward, the connecting plate 8 moves and synchronously stretches the first telescopic rod 6 and the reset spring 7, and then when the limit frame 4 is installed on the shell 1, the connecting plate 8 is loosened, the restriction of the reset spring 7 is released, driving the connecting plate 8 to reset, thereby driving the limit rod 9 to access the inside of the limit hole 201, so as to facilitate fixing the limit frame 4 on the shell 1.

[0029] Furthermore, the outer annular surface of the lens 3 is slidably connected to the inside of the mounting hole 101, and a through hole is opened on the outside of the limiting frame 4 to fix the lens 3 inside the housing 1 and one end of the lens 3 is located outside the limiting frame 4, thereby facilitating the installation of the lens 3.

[0030] Furthermore, the outer ring surface size of the positioning rod 5 matches the inner wall size of the positioning hole 102, and the outer ring surface of the positioning rod 5 is slidingly connected to the inner wall of the positioning hole 102, thereby ensuring that the four positioning rods 5 are connected to the corresponding positioning holes 102 to facilitate the installation of the limit frame 4 on the outer shell 1.

[0031] Furthermore, threads are provided on the outer ring surface of the fixing ring 11 , and the outer ring surface of the fixing ring 11 is threadedly connected to the inner wall of the rear cover 12 , thereby ensuring that the optical fiber can be easily installed inside the installation frame 10 .

[0032] For details, please refer to Figure 3 and Figure 5 The outer ring surface of the ring 14 is slidably connected to the inner wall of the mounting frame 10, thereby ensuring that the optical fiber can be easily inserted between the two limiting arc plates 17. The two limiting arc plates 17 move away from each other and compress the second telescopic rod 15 and the compression spring 16, thereby fixing the optical fiber on the two limiting arc plates 17.

[0033] The working process of the utility model is as follows: using the high-performance single-mode fiber lens collimation connector designed by the present invention, in the process of installing the single-mode fiber, firstly, the lens 3 is installed in the internal mounting hole 101 of the housing 1, and then the four positioning rods 5 are connected to the corresponding positioning holes 102 to facilitate the installation of the limit frame 4 on the housing 1, and when the limit frame 4 is close to the housing 1, the two connecting plates 8 are pulled outward, and the connecting plates 8 move and synchronously stretch the first telescopic rod 6 and the reset spring 7, and then when the limit frame 4 is installed on the housing 1, the connecting plate 8 is loosened, and the restriction of the reset spring 7 is released, driving the connecting plate 8 to reset, thereby driving the limit frame 4 to reset. The positioning rod 9 is connected to the interior of the limiting hole 201 to facilitate fixing the limiting frame 4 on the outer shell 1, and then one end of the optical fiber is passed through the back cover 12, and the optical fiber is inserted between the two limiting arc plates 17. The two limiting arc plates 17 move away from each other and compress the second telescopic rod 15 and the compression spring 16, so that the optical fiber is fixed between the two limiting arc plates 17. The protective pad 18 is provided to avoid damage to the optical fiber during fixation. Finally, the ring 14 is slid and squeezed into the interior of the installation frame 10 and close to the aperture 13. The light beam in the optical fiber passes through the aperture 13 and then passes through the lens 3 to play a focusing role. It is easy to install and easy to disassemble and assemble for maintenance.

[0034] 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 single mode optical fiber lens collimation connector, comprising a housing (1), characterized in that: The shell (1) is provided with a mounting hole (101) inside, and positioning holes (102) are provided at four corners of one end of the outer side of the shell (1). A fixing block (2) is symmetrically installed at one end of the two outer side surfaces of the shell (1). A limiting hole (201) is provided on the outer side surface of the fixing block (2). A lens (3) is installed inside the positioning hole (102). A limiting frame (4) is installed at one end of the outer side of the shell (1) and is located on the lens (3). Positioning rods (5) are installed at four corners of the wider outer side of the limiting frame (4). First telescopic rods (6) are installed on two narrower outer sides of the limiting frame (4). A return spring (7) is installed on the outer ring surface of the first telescopic rod (6). A connecting plate (8) is installed at one end of the first telescopic rod (6). A limiting rod (9) is installed on the outer side of the connecting plate (8) and at one end away from the first telescopic rod (6). An installation frame (10) is installed at one end of the outer shell (1) away from the limiting frame (4), a fixing ring (11) is installed at one end of the outer shell (1), a back cover (12) is installed on the outer ring surface of the fixing ring (11), an aperture (13) is installed at one end of the inner shell (1) of the installation frame (10), a circular ring (14) is installed inside the installation frame (10), second telescopic rods (15) are symmetrically installed at the top and bottom ends of the inner side wall of the circular ring (14), a compression spring (16) is installed on the outer ring surface of the second telescopic rod (15), a limiting arc plate (17) is installed at one end of the second telescopic rod (15), and a protective pad (18) is installed on the inner side wall of the limiting arc plate (17).

2. The high performance single mode fiber lens alignment connector according to claim 1, characterized in that: The outer annular surface of the lens (3) is slidably connected to the inside of the mounting hole (101), and a through hole is provided on the outside of the limiting frame (4) to fix the lens (3) inside the housing (1), and one end of the lens (3) is located outside the limiting frame (4).

3. The high performance single mode fiber lens alignment connector according to claim 1, characterized in that: The size of the outer ring surface of the positioning rod (5) matches the size of the inner wall of the positioning hole (102), and the outer ring surface of the positioning rod (5) is slidably connected to the inner wall of the positioning hole (102).

4. The high performance single mode fiber lens alignment connector according to claim 1, characterized in that: The size of the outer ring surface of the limiting rod (9) matches the size of the inner side wall of the limiting hole (201), and the outer ring surface of the limiting rod (9) is slidably connected to the inner side wall of the limiting hole (201).

5. The high performance single mode fiber lens alignment connector according to claim 1, characterized in that: The outer ring surface of the fixing ring (11) is provided with threads, and the outer ring surface of the fixing ring (11) is threadedly connected to the inner side wall of the rear cover (12).

6. The high performance single mode fiber lens alignment connector according to claim 1, characterized in that: The outer ring surface of the circular ring (14) is slidably connected to the inner side wall of the installation frame (10).

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