Optical fiber connector with novel structure

Abstract

The utility model discloses an optical fiber connector with a novel structure, which comprises a connector body, a shell assembly and an inner core assembly, and the inner core assembly comprises a locking piece, a connecting assembly and an optical fiber adapter. The connecting assembly is arranged in the connector body of the tubular structure, the connecting assembly comprises a connecting seat and a clamping piece, one end of the connecting seat is provided with a clamping groove connected with the optical fiber adapter, the other end of the connecting seat is a stud part in threaded connection with the locking piece, and threading holes are formed in the stud part and the locking piece; the clamping piece is detachably connected with the clamping groove of the connecting base, and a first limiting boss is arranged in a pipe cavity of the connector body. When the connecting assembly is connected with the connector body, the clamping piece cannot be separated from the connecting seat. By adopting the structural design of the built-in optical fiber adapter, the optical fiber adapter is reliably and stably connected with the connector body, and the optical fiber adapter is directly connected with a home-entry optical fiber cable during use without additionally installing the optical fiber adapter, so that the optical fiber connector is convenient and fast to install and use.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber communication physical connection technology, and in particular to a novel optical fiber connector. Background Technology

[0002] Fiber optic connectors are devices that allow for detachable connections between optical fibers, precisely mating the two end faces of the fibers and maximizing the coupling of light energy from the transmitting fiber to the receiving fiber. A large number of fiber optic connectors are widely used for connections between fiber-to-fiber, fiber-to-device, and fiber-to-instrument pairs.

[0003] Existing fiber optic connectors typically pass the fiber optic cable through a ceramic ferrule at the connector end, and then connect it to the incoming fiber optic cable via a fiber optic adapter during use. This structure increases the number of connections between the fiber optic adapter, the fiber optic cable, and the fiber optic connector, making installation cumbersome and complex. Furthermore, the fiber optic adapter is prone to loosening or separation from the fiber optic connector due to external forces, affecting the reliability and stability of the connection and failing to meet the requirements of existing technologies.

[0004] Therefore, it is necessary to develop a new type of fiber optic connector with a built-in fiber optic adapter design, which allows the fiber optic adapter to reliably and securely connect to the connector body, making it convenient and quick to use and install, and also providing a sealed and waterproof design. Utility Model Content

[0005] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0006] A novel fiber optic connector includes a connector body, a shell assembly, and an inner core assembly, characterized in that...

[0007] The inner core assembly includes a locking component, a connecting component, and a fiber optic adapter;

[0008] The connection assembly is disposed in the tubular connector body. The connection assembly includes a connection seat and a snap-fit ​​component. One end of the connection seat is provided with a slot for connecting to the optical fiber adapter, and the other end is a stud part for threaded connection to the locking component. Both the stud part and the locking component are provided with a through hole that extends from one end to the other.

[0009] The snap-fit ​​connector is detachably connected to the slot of the connector base, and the snap-fit ​​connector is used to prevent the fiber optic adapter from leaving the slot.

[0010] A first limiting boss is provided inside the cavity of the connector body. The first limiting boss is used to limit the distance that the connector seat moves axially relative to the connector body.

[0011] The locking member is provided with a limiting protrusion ring in the middle, and an external threaded connection section and an extension tube section are provided in sequence at the end away from the connector body.

[0012] When the connecting component is connected to the connector body, the snap-fit ​​component must not detach from the connector base.

[0013] Preferably, the housing assembly includes a tail tube and a dust cap assembly located at both ends of the connector body;

[0014] The dust cap assembly is detachably connected to the end of the connector body away from the locking member, and the fiber optic adapter is located inside the dust cap assembly;

[0015] One end of the tail tube is threadedly connected to the external threaded connection section of the locking member.

[0016] Preferably, the end of the tail tube away from the locking member is a spring-shaped extension.

[0017] Preferably, a metal sleeve is provided between the tail tube and the locking member, the large-diameter end of the metal sleeve is sleeved with the extension tube section of the locking member, and a wire hole is opened in the small-diameter end.

[0018] A heat-shrinkable tube is provided between the tail tube and the metal sheath. After the heat-shrinkable tube is heat-shrinked, one end is sealed to the extension tube section, the middle part is fixed to the metal sheath and the locking member, and the other end extends and is sealed to the optical fiber.

[0019] Preferably, the dust cap assembly includes a locking sleeve and a dust cap body;

[0020] One end of the locking sleeve is slidably fitted onto the outside of the connector body, and the other end is detachably screwed and snapped into the dust cap body;

[0021] A second limiting boss is provided on the outer surface of the connector body near the dust cap body. The second limiting boss is used to limit the axial distance between the locking sleeve and the connector body.

[0022] The end of the dust cap body that is connected to the locking sleeve abuts against the second limiting boss.

[0023] Preferably, a first sealing element is provided between the connector body and the locking element and the limiting protrusion ring.

[0024] Preferably, a second sealing element is provided between the locking sleeve and the dust cap body, and a third sealing element is provided between the locking sleeve, the second limiting boss, and the end of the dust cap body.

[0025] Preferably, the housing assembly includes a chain, one end of which is detachably connected to the dust cap assembly, and the other end is detachably fitted onto the external threaded connection section of the locking member.

[0026] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0027] 1. This utility model adopts a built-in fiber optic adapter structure design, which enables the fiber optic adapter to be reliably and securely connected to the connector body. When in use, it can be directly connected to the incoming fiber optic line through the fiber optic adapter, without the need for additional fiber optic adapter installation, making installation and use convenient and quick.

[0028] 2. The metal sheath restricts the radial movement of the fiber optic cable connection relative to the connector body, ensuring a stable and reliable fiber optic cable connection.

[0029] 3. The heat shrink tubing prevents water from entering the connector body from the connection between the optical fiber and the metal sheath, as well as the connection between the metal sheath and the locking element, thus achieving a sealed and waterproof design. Attached Figure Description

[0030] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0031] Figure 2 This is an exploded view of the present invention;

[0032] Figure 3 for Figure 1 A schematic diagram of the three-dimensional cross-sectional structure in the middle;

[0033] Figure 4 This is a three-dimensional structural diagram of the connecting component in this utility model;

[0034] The components include: connector body 1, outer shell assembly 2, inner core assembly 3, metal sheath 4, heat shrink tubing 5, first seal 6, second seal 7, third seal 8, tail tube 21, dust cap assembly 22, chain belt 23, locking component 31, connecting assembly 32, fiber optic adapter 33, fiber optic cable 100, locking sleeve 221, dust cap body 222, connecting seat 321, snap-fit ​​component 322, first limiting boss 1a, second limiting boss 1b, extension section 21a, limiting protrusion ring 31a, external threaded connection section 31b, extension tube section 31c, slot 321a, stud part 321b, and wire hole 321c. Detailed Implementation

[0035] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0036] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," "up," "down," "front," "back," and similar expressions used in this document are for illustrative purposes only.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0038] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments:

[0039] like Figure 1-4 As shown, a novel fiber optic connector includes a connector body 1, a housing assembly 2, and an inner core assembly 3. The inner core assembly 3 includes a locking member 31, a connecting assembly 32, and a fiber optic adapter 33.

[0040] The connection component 32 is disposed inside the connector body 1 of the tubular structure. The connection component 32 includes a connection seat 321 and a snap-fit ​​member 322. One end of the connection seat 321 is provided with a slot 321a for connecting to the optical fiber adapter 33, and the other end is a stud portion 321b for threaded connection to the locking member 31. Both the stud portion 321b and the locking member 31 are provided with a wire hole 321c that extends from one end to the other end.

[0041] The snap-fit ​​connector 322 is detachably connected to the slot 321a of the connector 321, and the snap-fit ​​connector 322 is used to prevent the fiber optic adapter 33 from leaving the slot 321a;

[0042] The connector body 1 is provided with a first limiting boss 1a in the cavity. The first limiting boss 1a is used to limit the distance that the connecting seat 321 moves axially relative to the connector body 1.

[0043] The locking member 31 is provided with a limiting protrusion ring 31a in the middle, and an external threaded connection section 31b and an extension tube section 31c are provided in sequence at the end away from the connector body 1.

[0044] When the connecting component 32 is connected to the connector body 1, the snap-fit ​​component 322 cannot be detached from the connector base 321.

[0045] In this embodiment, the fiber optic connector passes sequentially through the threading hole 321c of the locking member 31 and the stud portion 321b and is connected to the fiber optic adapter 33 located in the slot 321a. Then, the corresponding fiber optic adapter 33 is installed on the connector base 321 through the slot 321a and fixed on the slot 321a by the snap-fit ​​member 322. Then, the connecting assembly 32 is installed inside the connector body 1. Since the connecting assembly 32 is placed inside the cavity of the connector body 1, the snap-fit ​​member 322 is restricted from detaching from the connector base 321. At the same time, under the action of the first limiting boss 1a and the limiting ring 31a, the locking member 31 is threadedly connected to the stud portion 321b of the connector base 321. Tightening the locking member 31 can securely and reliably connect the connector base 321, the snap-fit ​​member 322 and the fiber optic adapter 33 to the connector body 1. In use, it can be directly connected to the fiber optic cable 100 through the fiber optic adapter 33 without the need for additional installation of the fiber optic adapter 33, making installation and use convenient and quick.

[0046] Furthermore, such as Figure 2 , 3 As shown, the housing assembly 2 includes a tail tube 21 and a dust cap assembly 22 located at both ends of the connector body 1;

[0047] The dust cap assembly 22 is detachably connected to the end of the connector body 1 away from the locking member 31, and the fiber optic adapter 33 is located inside the dust cap assembly 22;

[0048] One end of the tail tube 21 is threadedly connected to the external threaded connection section 31b of the locking member 31.

[0049] In this embodiment, the tail tube 21 is used to protect the optical fiber 100, and the dust cap assembly 22 is used to isolate the optical fiber adapter 33 from the outside world when not in use, thus playing a dustproof role.

[0050] Furthermore, such as Figure 2 , 3 As shown, in order to improve the protection of the optical fiber 100, the end of the tail tube 21 away from the locking member 31 is a spring-shaped extension 21a.

[0051] Furthermore, such as Figure 1 , 2 As shown in Figure 3, a metal sleeve 4 is provided between the tail tube 21 and the locking member 31. The large-diameter end of the metal sleeve 4 is sleeved with the extension tube section 31c of the locking member 31, and a wire hole 321c is opened in the small-diameter end.

[0052] A heat-shrinkable tube 5 is provided between the tail tube 21 and the metal sheath 4. After the heat-shrinkable tube 5 is heat-shrinkable, one end is sealed to the extension tube section 31c, the middle part fixes the metal sheath 4 to the locking member 31, and the other end extends and is sealed to the optical fiber line 100.

[0053] In this embodiment, the metal sheath 4 restricts the radial movement of the fiber optic cable 100 connection portion relative to the connector body 1, ensuring a stable and reliable connection of the fiber optic cable 100.

[0054] In this embodiment, the heat shrink tube 5 can prevent water from entering the connector body 1 from the connection between the optical fiber 100 and the metal sheath 4 and the connection between the metal sheath 4 and the locking member 31, thus achieving a sealed and waterproof effect.

[0055] Furthermore, such as Figure 2 , 3 As shown, the dust cap assembly 22 includes a locking sleeve 221 and a dust cap body 222;

[0056] One end of the locking sleeve 221 is slidably sleeved on the outside of the connector body 1, and the other end is detachably screwed and snapped into the dust cap body 222;

[0057] A second limiting boss 1b is provided on the outer surface of one end of the connector body 1 near the dust cap body 222. The second limiting boss 1b is used to limit the axial distance between the locking sleeve 221 and the connector body 1.

[0058] One end of the dust cap body 222 connected to the locking sleeve 221 is in contact with the second limiting boss 1b.

[0059] In this embodiment, during installation, the locking sleeve 221 is inserted from the end of the connector body 1 near the locking member 31. Under the action of the second limiting boss 1b, the dust cap and the locking sleeve 221 are screwed and engaged, which can fix the dust cap assembly 22 on the connector body 1, thereby providing dust protection for the fiber optic adapter 33 when not in use. When in use, the dust cap body 222 can be separated from the locking sleeve 221. The structure is simple and the operation is convenient.

[0060] Furthermore, such as Figure 3 As shown, in order to improve the connection sealing at the connection between the connector body 1 and the locking member 31, a first sealing member 6 is provided between the connector body 1, the locking member 31, and the limiting protrusion ring 31a.

[0061] Furthermore, such as Figure 3As shown, in order to improve the connection sealing at the connection between the connector body 1 and the dust cap assembly 22, a second sealing element 7 is provided between the locking sleeve 221 and the dust cap body 222, and a third sealing element 8 is provided between the locking sleeve 221 and the second limiting boss 1b and the end of the dust cap body 222.

[0062] Furthermore, such as Figure 1 , 2 As shown in Figure 3, in order to prevent the dust cap body 222 from detaching from the connector body 1 and being lost during use, and to improve ease of use, the outer shell assembly 2 includes a chain 23. One end of the chain 23 is detachably connected to the dust cap assembly 22, and the other end is detachably sleeved on the external threaded connection section 31b of the locking member 31.

[0063] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this utility model patent.

Claims

1. A novel fiber optic connector, comprising a connector body, a shell assembly, and an inner core assembly, characterized in that, The inner core assembly includes a locking component, a connecting component, and a fiber optic adapter; The connection assembly is disposed in the tubular connector body. The connection assembly includes a connection seat and a snap-fit ​​component. One end of the connection seat is provided with a slot for connecting to the optical fiber adapter, and the other end is a stud part for threaded connection to the locking component. Both the stud part and the locking component are provided with a through hole that extends from one end to the other. The snap-fit ​​connector is detachably connected to the slot of the connector base, and the snap-fit ​​connector is used to prevent the fiber optic adapter from leaving the slot. A first limiting boss is provided inside the cavity of the connector body. The first limiting boss is used to limit the distance that the connector seat moves axially relative to the connector body. The locking member is provided with a limiting protrusion ring in the middle, and an external threaded connection section and an extension tube section are provided in sequence at the end away from the connector body. When the connecting component is connected to the connector body, the snap-fit ​​component must not detach from the connector base.

2. The fiber optic connector with a novel structure according to claim 1, characterized in that, The housing assembly includes tail tubes and dust cap assemblies located at both ends of the connector body; The dust cap assembly is detachably connected to the end of the connector body away from the locking member, and the fiber optic adapter is located inside the dust cap assembly; One end of the tail tube is threadedly connected to the external threaded connection section of the locking member.

3. The optical fiber connector with a novel structure according to claim 2, characterized in that, The end of the tail tube away from the locking element is a spring-shaped extension.

4. The optical fiber connector with a novel structure according to claim 2, characterized in that, A metal sleeve is provided between the tail tube and the locking component. The large-diameter end of the metal sleeve is sleeved with the extension section of the locking component, and a wire hole is opened in the small-diameter end. A heat-shrinkable tube is provided between the tail tube and the metal sheath. After the heat-shrinkable tube is heat-shrinked, one end is sealed to the extension tube section, the middle part is fixed to the metal sheath and the locking member, and the other end extends and is sealed to the optical fiber.

5. The fiber optic connector with a novel structure according to claim 2, characterized in that, The dust cap assembly includes a locking sleeve and a dust cap body; One end of the locking sleeve is slidably fitted onto the outside of the connector body, and the other end is detachably screwed and snapped into the dust cap body; A second limiting boss is provided on the outer surface of the connector body near the dust cap body. The second limiting boss is used to limit the axial distance between the locking sleeve and the connector body. The end of the dust cap body that is connected to the locking sleeve abuts against the second limiting boss.

6. The optical fiber connector with a novel structure according to claim 1, characterized in that, A first sealing element is provided between the connector body, the locking element, and the limiting protrusion ring.

7. The fiber optic connector with a novel structure according to claim 5, characterized in that, A second sealing element is provided between the locking sleeve and the dust cap body, and a third sealing element is provided between the locking sleeve, the second limiting boss, and the end of the dust cap body.

8. The optical fiber connector with a novel structure according to claim 2, characterized in that, The outer casing assembly includes a chain belt, one end of which is detachably connected to the dust cap assembly, and the other end is detachably fitted onto the external threaded connection section of the locking member.

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