An assembly structure for an optical fiber coupler

Abstract

The utility model discloses a kind of assembly structure of optical fiber coupler in the technical field of optical fiber coupler, including locking frame and pressing spring piece, buckle is increased in the left and right sides of inner joint of this device, form the positioning structure of double clamping point, and locking frame is increased on the shell of fixed point, inner joint is hoop by locking frame, so as to limit left and right and up and down direction of inner joint, then the front and rear direction activity of inner joint can be effectively limited by buckle and limit interface, so as to carry out all-round location to inner joint, make inner joint install stably in shell, increase pressing spring piece simultaneously, buckle can be pressed, buckle is unlocked, so that inner joint is conveniently disassembled, make subsequent overhaul and debugging of optical fiber coupler more convenient.

Description

Technical Field

[0001] This utility model relates to the field of fiber optic coupler technology, and in particular to an assembly structure for a fiber optic coupler. Background Technology

[0002] Fiber optic couplers, also known as splitters, connectors, adapters, and fiber optic flanges, are electronic components used to split or combine optical signals. They can be used to extend fiber optic links and belong to the field of passive optical components. They are used in telecommunications networks, cable television networks, subscriber loop systems, and local area networks, and are most commonly used in gateway devices.

[0003] In existing technologies, a female fiber optic coupler needs to be installed inside the connection device, and then the external pipeline data line is connected as a male fiber optic coupler. Data transmission is formed by plugging and unplugging the male and female fiber optic couplers.

[0004] The fixed flange has a complex structure and is difficult to assemble. When assembling gateway equipment, the flange is often not securely fixed and becomes loose. In particular, when the two male and female connectors inside and outside the fiber optic coupler are plugged into each other, it is easy to push out the female connector inside the electronic equipment, causing it to loosen. Therefore, the current assembly is a one-time installation, that is, it is not allowed to be disassembled after installation. However, such a structure cannot correct errors.

[0005] Any equipment can be damaged and has after-sales service. This type of connector, which can only be assembled once, requires replacement with a different model or a new fiber optic coupler connector when the fiber optic coupler malfunctions during subsequent after-sales maintenance and product testing and debugging. At this time, the female connector inside the casing of this disposable electronic device can only be forcibly removed and cannot be easily disassembled and replaced.

[0006] Therefore, some connectors have been designed for ease of maintenance. These fiber optic coupler connectors are simply snap-fit ​​and positioned, which is basically a groove into which the fiber optic coupler is snapped. These connectors are replaceable. However, during use, when inserting external connectors, it is easy to push the female connector of the fiber optic coupler of the electronic device out of its working position, causing the fiber optic coupler to be nailed into the device housing, requiring reinstallation and maintenance, which is inconvenient.

[0007] Based on this, the present invention designs an assembly structure for an optical fiber coupler to solve the above problems. Utility Model Content

[0008] The purpose of this invention is to provide an assembly structure for an optical fiber coupler. This device adds buckles on both sides of the inner connector to form a double-point positioning structure. A positioning locking frame is added to the housing at the fixed point. The locking frame encircles the inner connector, thereby restricting the inner connector in the left-right and up-down directions. The buckles and limiting interfaces effectively restrict the forward-backward movement of the inner connector, thus providing omnidirectional positioning of the inner connector and ensuring stable installation of the inner connector within the housing. At the same time, a pressing spring is added to press the buckle and unlock it, thereby facilitating the disassembly of the inner connector and making subsequent maintenance and debugging of the optical fiber coupler more convenient.

[0009] This utility model is implemented as follows: an assembly structure for an optical fiber coupler, comprising:

[0010] Housing, pressing spring, and internal connector;

[0011] The housing is an outer shell of the device. A block-shaped insert shell is recessed and protruded inward on the housing. A limiting interface is opened on the inner side wall of the insert shell. The limiting interface penetrates the inner and outer sides of the insert shell, and the plane where the limiting interface is located is perpendicular to the bottom plate of the housing.

[0012] The pressing spring is an elastic sheet structure. A pressing spring is provided on each of the left and right sides of the limiting interface. The pressing spring is connected to the edge of the limiting interface and can swing elastically in the left and right direction.

[0013] A locking frame is also fixedly installed inside the housing. The locking frame is an annular square frame with openings at both ends. The locking frame is directly opposite the opening of the limiting interface, and the central axis of the locking frame and the opening of the limiting interface coincides. The planes where the locking frame and the opening of the limiting interface are located are perpendicular to the bottom plate of the housing.

[0014] The inner connector is a straight rod-shaped interface. The insertion end of the inner connector is also provided with a guide interface. The middle section of the inner connector is also provided with a limiting block. A buckle is connected to each of the left and right sides of the guide interface. The inner connector is inserted into the locking frame.

[0015] The buckle is an elastic sheet structure, with the rear ends of the two buckles extending outward on the left and right sides of the guide interface, and the front ends of the buckles fitting into the guide interface;

[0016] When the inner connector is in the installation state, the rear end of the buckle abuts against the front end of the locking frame, and at the same time, the front end of the guide interface is aligned and abuts against the limiting interface.

[0017] The two pressing springs are respectively attached to the outside of the left and right guide interfaces.

[0018] Furthermore, the pressing spring is a plastic spring, and the buckle is a metal spring; the pressing spring opens to the left and right sides when not subjected to external force.

[0019] The pressing spring does not contact the locking frame.

[0020] Furthermore, the outer frame size of the guide interface is smaller than the opening of the limiting interface, and the stepped groove blocks the insertion endpoint of the limiting platform.

[0021] Furthermore, limiting platforms are provided on the left and right sides of the limiting block, and step grooves are provided on the left and right sides of the front end of the inner wall of the locking frame, which block the forward path of the limiting platforms.

[0022] The guide interface and the locking frame are fitted with a clearance.

[0023] Furthermore, the buckle opens to the left and right sides when not subjected to external force.

[0024] The beneficial effects of this utility model are: 1. An elastic buckle is added to the inner head of this utility model. The buckle opens and engages with the front end of the locking frame that is fixed in position, thereby locking the inner connector and preventing the inner connector from exiting the locking frame. The front guide interface of the inner connector also abuts against the limiting interface to limit the inner connector, preventing the inner connector from sliding forward. Thus, the forward and backward movement of the inner connector can be restricted by the buckle and the guide interface, effectively limiting the inner connector.

[0025] 2. The locking frame of this device is ring-shaped. The ring-shaped locking frame can clamp the inner connector, making it impossible for the inner connector to move up and down or left and right. The locking frame can also cooperate with the guide interface for guiding insertion when the inner connector is inserted, making installation convenient.

[0026] 3. The buckle of this device gets stuck in the front end of the locking frame when it is engaged, making it difficult to operate and grip. This device adds a pressing spring, which can press inward to squeeze the buckle and separate it from the locking frame. This allows the inner connector to be easily pulled out along the inner hole of the locking frame, making the entire inner connector easy to remove and disassemble, which is convenient for the disassembly and maintenance of the fiber optic coupler. In addition, the inner wall of the locking frame is covered with a frosted anti-slip texture, which makes the locking frame and the inner connector fit tightly, and also keeps the inner connector stable when the external male connector of the fiber optic coupler is inserted. Attached Figure Description

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] Figure 1 This is a schematic diagram of the assembly state of the internal connector of this utility model inside the housing;

[0029] Figure 2This is a schematic diagram of the internal connector of this utility model in the disassembled state from the housing;

[0030] Figure 3 This is a schematic diagram showing the structural relationship between the inner connector and the locking frame in their disassembled state.

[0031] Figure 4 This is a top view of the assembled structure of the inner connector and locking frame of this utility model;

[0032] Figure 5 This is a schematic diagram of the stepped groove structure inside the locking frame of this utility model;

[0033] Figure 6 This is a schematic diagram of the internal connector and locking frame in the pulled-out state of this utility model.

[0034] Figure 7 This is a schematic diagram of the external structure of the insert shell outside the housing of this utility model.

[0035] The attached diagram lists the components represented by each number as follows:

[0036] 1-Housing shell, 11-Insertion shell, 2-Pressing spring, 21-Limiting interface, 22-Locking frame, 23-Step groove, 3-Inner connector, 31-Snap buckle, 32-Guide interface, 33-Limiting block, 34-Limiting platform. Detailed Implementation

[0037] Please see Figures 1 to 7 As shown, this utility model provides an assembly structure for an optical fiber coupler. To better understand the above technical solution, the following will describe the above technical solution in detail with reference to the accompanying drawings and specific embodiments.

[0038] In a specific embodiment of the technical solution of this utility model:

[0039] Includes housing 1, pressing spring 2, and inner connector 3;

[0040] The housing 1 is an outer shell of the equipment. A square-shaped insert shell 11 is recessed and protruded on the housing 1. A limiting interface 21 is opened on the inner side wall of the insert shell 11. The limiting interface 21 penetrates the inner and outer sides of the insert shell 11, and the plane where the limiting interface 21 is located is perpendicular to the bottom plate of the housing 1. This direction is the vertical direction.

[0041] The pressing spring 2 is an elastic sheet structure. A pressing spring 2 is provided on each of the left and right sides of the limiting interface 21. The pressing spring 2 is connected to the edge of the limiting interface 21 so that it can swing elastically in the left and right direction.

[0042] A locking frame 22 is also fixedly installed inside the housing 1. The locking frame 22 is an annular square frame with openings at both ends. The locking frame 22 is directly opposite the opening of the limiting interface 21, and the central axis of the locking frame 22 and the opening of the limiting interface 21 coincides. The planes where the locking frame 22 and the opening of the limiting interface 21 are located are perpendicular to the bottom plate of the housing 1. The limiting interface 21 and the guide interface 32 are pressed together, restricting the inner connector 3 from continuing to advance and limiting the inner connector 3. The outer frame size of the guide interface 32 is smaller than the opening of the limiting interface 21, and the stepped groove 23 blocks the insertion end point of the limiting platform 34.

[0043] The inner connector 3 is a straight rod-shaped interface and serves as the female connector of the coupler built into the gateway device. The inner connector 3 also features a guide interface 32 at its insertion end. The guide interface 32 is the female connector of the fiber optic coupler. During installation, the female opening of the guide interface 32 needs to be aligned and exposed outside the housing 1, meaning the male connector of the fiber optic coupler needs to be easily inserted into the guide interface 32. This requires the front end of the guide interface 32 to be aligned with the limiting interface 21, exposing the guide interface 32 outside the housing 1 from the opening of the limiting interface 21. After installation, the opening of the limiting interface 21 must be larger than the internal connector opening of the guide interface 32, while the outer ring dimension of the guide interface 32 must be blocked by the limiting interface 21, thus restricting the position of the inner connector 3.

[0044] A limiting block 33 is also provided in the middle section of the inner connector 3, and a buckle 31 is provided on each of the left and right sides of the guide interface 32. The inner connector 3 is inserted into the locking frame 22, so that the locking frame 22 is clamped around the outer wall of the inner connector 3, restricting the movement of the inner connector 3 in all directions. The inner wall of the annular hole of the locking frame 22 is covered with a frosted anti-slip texture, and the outer wall of the limiting block 33 is also provided with an anti-slip texture. The limiting block 33 and the locking frame 22 are interference fit. The pressing spring 2 does not contact the locking frame 22.

[0045] The frosted anti-slip texture creates a localized interference fit between the two components, with the interference not exceeding 0.1mm. This facilitates locking while allowing for easy removal even with significant force, thus limiting the installation position of the entire guide interface 32.

[0046] The buckle 31 is an elastic sheet structure. The rear ends of the two buckles 31 extend outward on the left and right sides of the guide interface 32, and the front ends of the buckles 31 fit into the guide interface 32, so that the two buckles 31 form a double-ear structure with a narrow front end and a wide rear end.

[0047] The buckle 31 is normally open to the left and right. When the inner connector and the locking frame 22 are stably installed, the rear end of the buckle 31 abuts against the front end of the locking frame 22, and the front end of the guide interface 32 is aligned and abutted against the vertical ring of the limit interface 21.

[0048] When the two latches 31 are open, they are locked onto the front side wall of the locking frame 22. The two pressing springs 2 are respectively attached to the outside of the left and right guide interfaces 32. The locking frame 22 is locked to the latches 31, restricting the inner connector 3 from sliding backward.

[0049] The pressing spring 2 is a plastic spring, and the buckle 31 is a metal spring; when the pressing spring 2 is not subjected to external force, it opens to the left and right sides, and the pressing spring 2 does not contact the buckle 31 when it is not subjected to external force.

[0050] Furthermore, the pressing spring 2 does not contact the housing 1, that is, a gap is formed between the bottom of the pressing spring 2 and the housing 1, ensuring that the pressing spring 2 can be easily pressed and rebounded.

[0051] It should be noted that:

[0052] This device is designed to facilitate the installation and removal of the inner connector 3 of the fiber optic coupler, i.e. the female end of the fiber optic coupler, and to stably mount it inside the housing 1 of various electronic devices. After the inner connector 3 of the fiber optic coupler is mounted inside the housing 1, it is ensured that the inner connector 3 of the fiber optic coupler cannot move in any direction, and is limited by a rigid connection. At the same time, during maintenance, it is also necessary to be able to easily disassemble and separate the inner connector 3 of the fiber optic coupler from the housing 1.

[0053] When installing the inner connector 3, the guide interface 32 of the inner connector 3 is pushed forward and the guide interface 32 is fitted and locked with the limiting interface 21. The limiting interface 21 prevents the guide interface 32 from moving horizontally, vertically, or horizontally.

[0054] During the advancement process, the guide interface 32 must first pass through the locking frame 22. The inner connector 3 advances forward within the locking frame 22. At this time, the front end of the buckle 31 is narrow, and the buckle 31 is restricted and guided by the locking frame 22. As the buckle 31 advances forward, the open rear end of the buckle 31 is also restricted and compressed inward. The buckle 31 continues to advance through the locking frame 22. When the buckle 31 passes through the locking frame 22, due to the size limitation of the inner connector 3, when the guide interface 32 and the limiting interface 21 are pressed together, the buckle 31 just passes through the locking frame 22. At this time, the buckle 31 is freed from the restriction of the locking frame 22 and opens. The open rear end of the buckle 31 is exactly abutted against the front end of the locking frame 22. The locking frame 22 restricts the buckle 31, preventing the inner connector 3 from retracting backward.

[0055] At this time, the limiting block 33 of the inner connector 3 is just stuck inside the locking frame 22, and the front end face of the locking frame 22 organizes the buckle 31 to exit outward.

[0056] Limiting platforms 34 protrude outwards on both sides of the limiting block 33, and stepped grooves 23 are opened on both sides of the front end of the inner wall of the locking frame 22. The stepped grooves 23 block the forward path of the limiting platforms 34. The stepped grooves 23 are just two protrusions protruding inwards on both sides of the inner wall of the locking frame 22. The stepped grooves 23 block the end point of the limiting block 33 when it is inserted inwards. When the limiting block 33 is inserted into the locking frame 22, the limiting platforms 34 on both sides of the limiting block 33 are locked with the stepped grooves 23 at the insertion end point that needs to be limited. The stepped grooves 23 prevent the limiting platforms 34 from continuing to move forward and limit the insertion end point of the inner connector 3.

[0057] The inner connector 3 is stably secured inside the housing 1. Even if the male end of the fiber optic coupler is pushed inward to insert into the inner connector 3, the inner connector 3 is restricted from further inward insertion by the stepped groove 23, the inner connector 3 is restricted from moving up, down, left, and right by the limiting interface 21, and the inner connector 3 is restricted from retracting by the locking frame 22. Thus, from all directions, the inner connector 3 is restricted from remaining in a fixed position after insertion.

[0058] When the inner connector 3 needs to be disassembled for electronic equipment maintenance, the pressing spring 2 can be pinched inward first. When there is no external force, the pressing spring 2 does not contact the buckle 31, and the pressing spring 2 is aligned with the outside of the buckle 31. When the two pressing springs 2 are pinched inward, the pressing springs 2 will squeeze the buckle 31, and the buckle 31 will be compressed and retracted into the locking frame 22. Then, the rear end of the inner connector 3 is pulled out, and the buckle 31 is retracted into the locking frame 22. The guide interface 32 and the locking frame 22 are in clearance fit. As long as the limiting block 33 is separated from the locking frame 22, the inner connector can be easily pulled out.

[0059] The front end of this device refers to the direction in which the inner connector 3 is inserted and pushed in, and the rear end refers to the direction in which the inner connector 3 is removed and withdrawn. The directions of up, down, left, and right are based on the front and back directions of the inner connector 3. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0060] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. An assembly structure for an optical fiber coupler, characterized in that, include: Housing (1), pressing spring (2), and inner connector (3); The housing (1) is an outer shell of the device. A square-shaped insert shell (11) is recessed and protruded inward on the housing (1). A square limiting interface (21) is opened on the inner side wall of the insert shell (11). The limiting interface (21) penetrates the inner and outer sides of the insert shell (11), and the plane where the limiting interface (21) is located is perpendicular to the bottom plate of the housing (1). The pressing spring (2) is an elastic sheet structure. A pressing spring (2) is provided on each of the left and right sides of the limiting interface (21). The pressing spring (2) is connected to the edge of the limiting interface (21) and can swing elastically in the left and right direction. The housing (1) is also provided with a locking frame (22). The locking frame (22) is an annular square frame with openings at both ends. The locking frame (22) is directly opposite the opening of the limiting interface (21). The central axis of the locking frame (22) and the opening of the limiting interface (21) coincides. The planes where the locking frame (22) and the opening of the limiting interface (21) are located are perpendicular to the bottom plate of the housing (1). The inner connector (3) is a straight rod-shaped interface. The insertion end of the inner connector (3) is also provided with a guide interface (32). The middle section of the inner connector (3) is also provided with a limiting block (33). A buckle (31) is connected to each of the left and right sides of the guide interface (32). The limiting block (33) is stably inserted into the locking frame (22). The buckle (31) is an elastic sheet structure. The rear ends of the two buckles (31) extend outward on the left and right sides of the guide interface (32), and the front ends of the buckles (31) fit against the guide interface (32). When the inner connector (3) is in the installation state, the rear end of the buckle (31) abuts against the front end of the locking frame (22), and the front end of the guide interface (32) is inserted into the limiting interface (21). The two pressing springs (2) are respectively attached to the outside of the left and right guide interfaces (32).

2. The assembly structure of an optical fiber coupler according to claim 1, characterized in that: The pressing spring (2) is a plastic elastic sheet, and the buckle (31) is a metal spring; the pressing spring (2) opens to the left and right sides when not subjected to external force; The pressing spring (2) does not contact the locking frame (22).

3. The assembly structure of an optical fiber coupler according to claim 1, characterized in that: The outer frame of the guide interface (32) is smaller than the opening of the limiting interface (21), and the limiting interface (21) is fitted and fastened to the outside of the guide interface (32).

4. The assembly structure of an optical fiber coupler according to claim 1, characterized in that: The left and right sides of the limiting block (33) are provided with limiting platforms (34) protruding outwards, and the left and right sides of the front end of the inner wall of the locking frame (22) are provided with step grooves (23), which block the forward path of the limiting platform (34). The guide interface (32) and the locking frame (22) are in clearance fit.

5. The assembly structure of an optical fiber coupler according to claim 1, characterized in that: The buckle (31) opens to the left and right sides when not subjected to external force.

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