Coupling assembly of optical fiber connector

Abstract

The utility model relates to a coupling assembly of an optical fiber connector. The coupling assembly comprises a coupling body, a core tube assembly and a sleeve. The two ends of the coupling body respectively comprise a plugging side and an assembling side, the coupling body is provided with a through hole penetrating from the plugging side to the assembling side, the coupling body is provided with a limiting opening on the side face of the plugging side, the coupling body is provided with a butt joint opening on the side face of the assembling side, and the limiting opening and the butt joint opening are communicated with the through hole. The side surface of the coupling body between the plugging side and the assembling side comprises a retaining piece extending towards the outer side, and the coupling body comprises a base part located on the assembling side. The core tube assembly comprises a core tube and an elastic assembly. The sleeve is located outside the base. The coupling body and the base part are integrated to improve the structural strength. The core tube assembly is installed in the through hole through the limiting opening of the coupling body, so that the core tube assembly is stably positioned in the through hole.

Description

Technical Field

[0001] The utility model relates to a coupling component, in particular to a coupling component of an optical fiber connector. Background Art

[0002] Optical fiber is a light transmission tool. In order to connect optical fiber to various electronic devices and allow the information it transmits to be used by electronic devices, a connector must be used as an intermediary between the optical fiber and the electronic device to achieve the purpose of connection. The coupling components of a general optical fiber connector include a hollow body, a core tube component, a spring, a base and a sleeve. After the hexagonal block and spring of the core tube component are installed in the hexagonal through hole inside the hollow body, the base is fixed to the side opening of the hollow body to limit the core tube component and the spring, and then the sleeve is installed outside the base. In this way, the hexagonal block and the hexagonal through hole are not easy to limit each other and the core tube component can be easily rotated axially. Utility Model Content

[0003] The utility model provides a coupling assembly of an optical fiber connector, aiming to solve the above technical problems.

[0004] The embodiment of the utility model provides a coupling assembly of an optical fiber connector, including a coupling body, a core tube assembly and a sleeve. The two ends of the coupling body respectively include a plug-in side and an assembly side, the coupling body has a through hole that runs from the plug-in side to the assembly side, the coupling body has a limit opening on the side of the plug-in side, the coupling body has a docking port on the side of the assembly side, the limit opening and the docking port are connected to the through hole, the side of the coupling body between the plug-in side and the assembly side includes a stopper extending toward the outside, the coupling body includes a base located on the assembly side, and the coupling body and the base are integrated. The core tube assembly includes a core tube inserted into the through hole by the limit opening and an elastic assembly. The sleeve is located outside the base.

[0005] Preferably, the coupling body is a hollow rectangular structure, the base is a hollow cylindrical structure, the docking port is arranged at the base, and the aperture of the limiting opening on the plug-in side is larger than the aperture of the docking port on the assembly side.

[0006] Preferably, the core tube includes a pin, a block and a connecting pipe, the pin and the connecting pipe are respectively located on two sides of the block, the pin is located at one end of the long side direction of the coupling body and corresponds to the limiting opening, the connecting pipe is located at the other end of the long side direction of the coupling body and corresponds to the docking port, and the elastic component is arranged outside the connecting pipe.

[0007] Preferably, the limiting opening is square, the through hole is square and has four abutting surfaces, the stopper is square and has four limiting surfaces, and each abutting surface corresponds to each limiting surface.

[0008] Preferably, the elastic component contacts the stopper at one end of the coupling body in the long side direction, the coupling body includes a stopper wall located in the through hole, and the elastic component contacts the stopper wall at the other end of the coupling body in the long side direction.

[0009] Preferably, the coupling body includes a docking block located in the through hole, the core tube includes a buckle block located on the outer annular surface of the connecting tube, and the docking block contacts the buckle block.

[0010] Preferably, the buckle block has flat surfaces on two opposite sides of a horizontal line, and the buckle block has curved surfaces on two opposite sides of a vertical line.

[0011] Preferably, the base includes hooks on two sides of a vertical line, and each hook protrudes in opposite directions. The sleeve has a through hole and an annular groove located on the inner wall of the through hole, and the hook is located in the annular groove.

[0012] Preferably, the coupling assembly further comprises a cover, and the cover is located at the limiting opening.

[0013] Preferably, the two ends of the retaining member respectively include a fixed end and a free end, the fixed end is located on the plug-in side and one end on the side of the coupling body, and the free end is located on the assembly side and the other end on the side of the coupling body, and the fixed end to the free end extends in an inclined manner in a direction away from the side of the coupling body.

[0014] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

[0015] The invention provides an optical fiber connector with a coupling body and a base as one body. The optical fiber connector comprises a core tube component which is installed in a through hole through a limiting opening of the coupling body.

[0016] The coupling body and the base are integrated to improve the structural strength and avoid fracture between the coupling body and the base. The core tube component is inserted into the through hole through the limiting opening of the coupling body, so that the core tube component is stably fixed in the through hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the appearance of a coupling component according to some embodiments is shown.

[0018] Figure 2 FIG. 4 is an exploded schematic diagram of the front side of a coupling component according to some embodiments.

[0019] Figure 3 A three-dimensional cross-sectional schematic diagram of a coupling body according to some embodiments is shown.

[0020] Figure 4 A schematic diagram of the appearance of a core tube according to some embodiments is shown.

[0021] Figure 5A schematic side cross-sectional view of a coupling component according to some embodiments is shown.

[0022] Explanation of symbols

[0023] 100: Coupling components

[0024] 1: Coupling body

[0025] 1a: Plug side

[0026] 1b: Assembly side

[0027] 10:Through hole

[0028] 101: abutment surface

[0029] 11: Rectangular structure

[0030] 12: Limit port

[0031] 13: Docking port

[0032] 14: Stop return piece

[0033] 141: Fixed end

[0034] 142: Free end

[0035] 15: Base

[0036] 15a: Vertical Line

[0037] 151: Cylindrical structure

[0038] 152:Hook

[0039] 16: retaining wall

[0040] 17: Docking block

[0041] 2: Core tube assembly

[0042] 21: Core tube

[0043] 211: Pin

[0044] 212: Stopper

[0045] 2121: Limiting surface

[0046] 213: Takeover

[0047] 217: Buckle block

[0048] 217a: Horizontal line

[0049] 217b: Vertical line

[0050] 2171: Plane

[0051] 2172:Curved

[0052] 22: Elastic components

[0053] 3: Casing

[0054] 31:Piercing

[0055] 32: Annular groove

[0056] 4: Lid

[0057] X: First axis

[0058] Y: Second axis

[0059] Z: The third axis. DETAILED DESCRIPTION

[0060] Reference Figure 1 and Figure 2 , Figure 1 is a schematic diagram of the appearance of the coupling component 100, Figure 2 The figure is a schematic diagram of the front of the coupling component 100; in some embodiments, the coupling component 100 is applied to a fiber optic connector, which is suitable for equipment in high and low temperature environments such as telecommunications, indoor wiring, industry, military, aviation, aerospace or medical industries, and can be used in data centers, 5G or cloud computing equipment. The fiber optic connector is a high-density fiber optic connection device that provides high-speed signal transmission. The fiber optic connector is used in fiber optic communication products, has a fiber optic socket, and accommodates the core wire of the optical fiber line (for transmission and reception). The coupling component 100 includes a coupling body 1, a core tube component 2 and a sleeve 3.

[0061] Reference Figures 2 to 5 The two ends of the coupling body 1 include a plug-in side 1a and an assembly side 1b. The plug-in side 1a is located as shown in FIG. Figure 2 On the left side of the coupling body 1, the assembly side 1b is located as shown in FIG. Figure 2 The right side of the coupling body 1 is shown. The coupling body 1 has a through hole 10 extending from the plug-in side 1a to the assembly side 1b, the coupling body 1 has a stopper 12 on the side of the plug-in side 1a, and the coupling body 1 has a docking port 13 on the side of the assembly side 1b. The stopper 12 and the docking port 13 are connected to the through hole 10. The side of the coupling body 1 between the plug-in side 1a and the assembly side 1b (as shown in FIG. Figure 2 The upper surface of the coupling body 1 shown includes a stopper 14 extending toward the outside. The coupling body 1 includes a base 15 located at the assembly side 1b. The coupling body 1 and the base 15 are integrated.

[0062] In order to explain the present case more clearly, in the schematic diagram provided in the present case, the first axis X is the X axis of the three-dimensional coordinate system, the second axis Y is the Y axis of the three-dimensional coordinate system, and the third axis Z is the Z axis of the three-dimensional coordinate system.

[0063] The coupling body 1 is a hollow rectangular structure 11. Figure 2 As shown, the coupling body 1 extends along the third axis Z direction and has four opposite sides forming a rectangle. The coupling body 1 extends along the first axis X direction and has two opposite sides. The two sides in the first axis X direction are respectively connected to two sides of the four sides in the third axis Z direction. The two sides in the first axis X direction are the sides in the short side direction, and the four sides in the third axis Z direction are the sides in the long side direction. The limit opening 12 is located as shown in FIG. Figure 2 On the side surface in the short side direction of the left side shown in FIG. Figure 2 On the left side of the base 15, the base 15 of the coupling body 1 is a hollow cylindrical structure 151, and the base 15 protrudes along the third axis Z direction. Figure 2 Side surface in the short direction of the left side shown.

[0064] In some embodiments, the two ends of the stopper 14 include a fixed end 141 and a free end 142, and the fixed end 141 is located at one end of the side of the coupling body 1 (such as Figure 2 The free end 142 is located at the other end of the side surface of the coupling body 1 (as shown in FIG. Figure 2 The right side of the coupling body 1 shown in the figure) is extended from the fixed end 141 to the free end 142 in an inclined manner along the -third axis Z direction and toward the +second axis Y direction, that is, extending in a direction away from the side of the coupling body 1. The side of the coupling body 1 includes a stopper 14 extending toward the outside, and the so-called outside refers to the height direction perpendicular to the long side direction of the upper surface of the coupling body 1 (that is, the +second axis Y direction). Figure 1 Starting from the opposite end of the coupling body 1 (the left side of the coupling body 1), along the -third axis Z direction toward the other end of the coupling body 1 (the right side of the coupling body 1) and extending upward toward the +second axis Y direction, the angle between the stop member 14 and the upper surface of the coupling body 1 is about 30 degrees.

[0065] When the core tube assembly 2 is assembled with the coupling body 1, the core tube assembly 2 is inserted into the through hole 10 through the limiting opening 12, so that the elastic assembly 22 is limited in the through hole 10 of the coupling body 1, and then the sleeve 3 is sleeved on the outside of the base 15 to complete the semi-finished product (such as Figure 5 In addition, a cover 4 can be installed on the coupling body 1, so that the cover 4 is fixed to the limit opening 12 and is used to prevent dust and protect the core tube assembly 2.

[0066] In some embodiments, the core tube 21 includes a pin 211, a stopper 212, and a pipe 213. The pin 211 and the pipe 213 are as shown in FIG. Figure 2As shown, the two sides of the stopper 212 are respectively arranged along the third axis Z direction. When the core tube 21 and the elastic component 22 are installed in the through hole 10 of the coupling body 1, the pin 211 is located at one end of the long side direction of the coupling body 1 and corresponds to the limit opening 12, and the pipe 213 is located at the other end of the long side direction of the coupling body 1 and corresponds to the docking port 13, and the elastic component 22 is sleeved on the outside of the pipe 213 (as shown in FIG. Figure 5 In some embodiments, the pin 211 is used to cover the optical fiber (core wire) and make the optical fiber line flush with the core hole of the pin 211.

[0067] Reference Figures 2 to 5 In some embodiments, the apertures of the limiting opening 12 and the docking opening 13 of the coupling body 1 are different, that is, the aperture of the limiting opening 12 on the plugging side 1a is larger than the aperture of the docking opening 13 on the assembly side 1b. Figure 2 The limiting opening 12 of the coupling body 1 is a square when viewed from the direction of the third axis Z, and the through hole 10 in the coupling body 1 is a square, and the through hole 10 has four relative abutment surfaces 101 extending along the direction of the third axis Z and forming a rectangle, and there are rounded corners between the four abutment surfaces 101. Figure 2 When viewed from the + third axis Z direction, the docking port 13 of the coupling body 1 is circular.

[0068] In some embodiments, Figure 2 When viewed in the direction of the third axis Z, the stopper 212 is square and has four limiting surfaces 2121 on the outer side of the stopper 212. The four limiting surfaces 2121 respectively include two relatively limiting surfaces 2121 arranged along the direction of the first axis X and two relatively limiting surfaces 2121 arranged along the direction of the second axis Y, and there are rounded corners between the four limiting surfaces 2121.

[0069] When the core tube 21 is installed in the through hole 10 of the coupling body 1, the limiting surfaces 2121 of the stopper 212 of the core tube 21 respectively correspond to the abutting surfaces 101 of the inner wall of the through hole 10, so that the four abutting surfaces 101 and the four limiting surfaces 2121 abut against each other surface to limit the core tube 21, so that the core tube 21 is limited in the through hole 10 and the freedom of axial rotation of the core tube 21 is restricted.

[0070] In some embodiments, when the elastic component 22 is installed in the through hole 10 of the coupling body 1, the elastic component 22 contacts the stopper 212 at one end corresponding to the long side direction of the coupling body 1, and the coupling body 1 includes a stopper wall 16 located in the through hole 10, and the elastic component 22 contacts the stopper wall 16 at the other end corresponding to the long side direction of the coupling body 1 (such as Figure 5 as shown).

[0071] When the core tube 21 is used in docking, the pin 211 of the core tube 21 faces the Figure 5As shown in the figure, the third axis Z direction moves to the right, and the stopper 212 squeezes one end of the elastic component 22, so that the elastic component 22 is squeezed into a compressed state, and the rebound force of the elastic component 22 pushes the pin 211 of the core tube 21 toward Figure 5 The + third axis Z direction is shown moving to the left.

[0072] Reference Figures 2 to 5 In order to prevent the pin 211 of the core tube 21 from being ejected from the stop opening 12, in some embodiments, the coupling body 1 includes a docking block 17 located in the through hole 10, and the docking block 17 is generally a circular inner protrusion when viewed from the third axis Z direction. The core tube 21 includes a buckle block 217 located on the outer annular surface of the connecting tube 213, which is Figure 5 When viewed along the third axis Z direction, the snap-on block 217 is roughly a circular outer protrusion. The docking block 17 and the snap-on block 217 are hook-shaped structures in opposite directions. The docking block 17 and the snap-on block 217 have inclined surfaces facing each other and straight surfaces facing each other. When the core tube 21 is installed in the through hole 10 of the coupling body 1, the snap-on block 217 on the outer annular surface of the connecting tube 213 will snap on the docking block 17, that is, the straight surface of the snap-on block 217 will snap on the straight surface of the docking block 17, so that the snap-on block 217 is stopped by the docking block 17, limiting the freedom of the core tube 21 to move toward the limit opening 12, and preventing the pin 211 of the core tube 21 from moving toward the position such as Figure 5 The + third axis Z direction shown pops out of the limit opening 12 to the left.

[0073] Reference Figures 2 to 4 In some embodiments, the buckle block 217 has flat surfaces 2171 on two opposite sides of a horizontal line 217a in the first axis X direction, and the buckle block 217 has curved surfaces 2172 on two opposite sides of a vertical line 217b in the second axis Y direction. When the core tube 21 is installed in the through hole 10 of the coupling body 1, the curved surface 2172 of the buckle block 217 facilitates guiding the buckle block 217 along the direction of the coupling body 1 when contacting the docking block 17 in the coupling body 1. Figure 5 The third axis Z direction passes from one side of the docking block 17 to the other side of the docking block 17 .

[0074] In some embodiments, the base 15 of the coupling body 1 is as follows Figure 2 The two sides of the vertical line 15a in the second axis Y direction include hooks 152 spaced apart from each other, and each hook 152 protrudes outward in opposite directions, that is, each hook 152 protrudes outward on the vertical line 15a along the +second axis Y direction and the -second axis Y direction. In some embodiments, the sleeve 3 has a through hole 31 and an annular groove 32 located on the inner wall of the through hole 31. When the sleeve 3 is as shown in FIG. Figure 2As shown, when the hooks 152 are sleeved outside the base 15 along the third axis Z direction, each hook portion 152 is squeezed by the inner wall of the sleeve 3, so that each hook portion 152 is close to each other and is conveniently installed in the annular groove 32 of the sleeve 3. When each hook portion 152 is placed in the annular groove 32 of the sleeve 3, each hook portion 152 is ejected in opposite directions away from each other due to the enlarged space of the annular groove 32, so that each hook portion 152 returns to its original position, and each hook portion 152 is clamped on the inner wall of the annular groove 32, so that the sleeve 3 is limited outside the base 15.

[0075] In summary, according to some embodiments, the coupling body and the base are integrated to improve the structural strength and avoid fracture between the coupling body and the base. The core tube component is inserted into the through hole through the limiting opening of the coupling body, so that the core tube component is stably fixed in the through hole.

Claims

1. A coupling assembly for an optical fiber connector, characterized in that : A coupling body, the two ends of which respectively include a plug-in side and an assembly side, the coupling body having a through hole extending from the plug-in side to the assembly side, the coupling body having a limit opening on the side of the plug-in side, the coupling body having a pair of interfaces on the side of the assembly side, the limit opening and the interface being connected to the through hole, the side of the coupling body between the plug-in side and the assembly side including a stopper extending outward, the coupling body including a base located on the assembly side, the coupling body and the base being integral; a core tube assembly, comprising a core tube inserted into the through hole through the limiting opening and an elastic assembly; and A sleeve is located outside the base.

2. The optical fiber connector coupling assembly according to claim 1, characterized in that :The coupling body is a hollow rectangular structure, the base is a hollow cylindrical structure, the docking port is arranged on the base, and the aperture of the limiting port located on the plug-in side is larger than the aperture of the docking port located on the assembly side.

3. The optical fiber connector coupling assembly according to claim 2, characterized in that The core tube includes a pin, a block and a connecting pipe, wherein the pin and the connecting pipe are respectively located on two sides of the block, the pin is located at one end of the long side direction of the coupling body and corresponds to the limiting opening, the connecting pipe is located at the other end of the long side direction of the coupling body and corresponds to the docking port, and the elastic component is arranged outside the connecting pipe.

4. The optical fiber connector coupling assembly according to claim 3, characterized in that : The limiting opening is square, the through hole is square and has four abutment surfaces, the stopper is square and has four limiting surfaces, and each abutment surface corresponds to each limiting surface respectively.

5. The optical fiber connector coupling assembly according to claim 3, characterized in that : The elastic component contacts the stopper at one end of the coupling body in the long side direction, the coupling body includes a stopper wall located in the through hole, and the elastic component contacts the stopper wall at the other end of the coupling body in the long side direction.

6. The optical fiber connector coupling assembly according to claim 3, characterized in that The coupling body includes a docking block located in the through hole, and the core tube includes a buckle block located on the outer annular surface of the connecting tube, and the docking block contacts the buckle block.

7. The optical fiber connector coupling assembly according to claim 6, characterized in that The buckle block has a plane on two opposite sides of a horizontal line, and the buckle block has a curved surface on two opposite sides of a vertical line.

8. The optical fiber connector coupling assembly according to claim 1, characterized in that The base includes a hook portion on two sides of a vertical line, and each hook portion protrudes in opposite directions. The sleeve has a through hole and an annular groove located on the inner wall of the through hole, and the hook portion is located in the annular groove.

9. The optical fiber connector coupling assembly according to claim 1, characterized in that : It also includes a cover, which is located at the limiting opening.

10. The optical fiber connector coupling assembly according to claim 1, characterized in that The two ends of the stop member respectively include a fixed end and a free end, the fixed end is located at the plug-in side and at one end on the side of the coupling body, and the free end is located at the assembly side and at the other end on the side of the coupling body, and the fixed end to the free end extend in an inclined manner in a direction away from the side of the coupling body.

Images