Elastic fixing piece and base assembly

Abstract

The elastic fixing piece comprises an arc-shaped clamping groove, a through opening is formed in the arc-shaped clamping groove, a protruding edge is arranged on the outer side wall, away from the opening, of the arc-shaped clamping groove, the protruding edge extends backwards in the axial direction, an elastic buckle is arranged at the top of the rear end of the protruding edge, and the elastic buckle extends forwards. The front end of the elastic buckle is provided with a clamping part protruding outwards, the outer side wall of the front end of the clamping part is provided with a guide inclined face, a gap is formed between the optical fiber assembly and the installation hole, an elastic fixing piece is installed in the gap in a matched mode, the optical fiber assembly is provided with a matching section, the matching section is located at the rear end of the limiting ring, and the matching section is sleeved with an arc-shaped clamping groove of the elastic fixing piece. A dismounting hole is formed in the side wall of the insertion cavity, and the clamping part of the elastic buckle is located in the dismounting hole. The beneficial effects of the utility model are that through the arrangement of the elastic fixing member, the gap between the optical fiber assembly and the installation hole is eliminated, thereby preventing the optical fiber assembly from shaking, and ensuring the use reliability of the optical fiber assembly.

Description

Technical Field

[0001] This utility model relates to optoelectronic connectors, and in particular to an elastic fixing member and base assembly. Background Technology

[0002] During the assembly of the photoelectric sensor, the ferrule assembly is inserted into the base, and the base latches pop open to hold the fiber optic contact. However, the large gap left after the fiber optic assembly is inserted causes the fiber optic contact to swing significantly within the base, affecting contact. This can lead to breakage of the ceramic sleeve of the fiber optic cable, especially under vibration conditions. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide an elastic fastener and base assembly.

[0004] The purpose of this utility model is achieved through the following technical solution: an elastic fastener includes an arc-shaped groove with a through opening. A protruding rib is provided on the outer side wall of the arc-shaped groove away from the opening. The protruding rib extends axially backward. An elastic buckle is provided at the top of the rear end of the protruding rib. The elastic buckle extends forward and has an outwardly protruding locking part at the front end. A guide slope is provided on the outer side wall of the front end of the locking part.

[0005] Optionally, the end face formed by the opening on the arc-shaped slot is a flat, anti-rotation end face.

[0006] A base assembly includes a base and an optical fiber assembly. The base has a mounting cavity at its front end and an insertion cavity at its rear end. The mounting cavity has a mounting hole at its bottom, which connects the mounting cavity and the insertion cavity. The bottom of the mounting cavity also has an elastic arm that extends axially forward and has an inwardly inclined limiting part at its front end. The optical fiber assembly has a limiting ring. The front end of the optical fiber assembly is located in the mounting cavity, and the rear end face of the limiting ring abuts against the limiting part. The rear end of the optical fiber assembly is located in the insertion cavity. There is a gap between the optical fiber assembly and the mounting hole. An elastic fastener is fitted into the gap. The optical fiber assembly has a mating section located at the rear end of the limiting ring. The arc-shaped slot of the elastic fastener is fitted onto the mating section. The side wall of the insertion cavity has a disassembly hole, and the locking part of the elastic buckle is located in the disassembly hole.

[0007] Optionally, there are two mounting holes and two mounting cavities, arranged side by side, with a partition between the two mounting cavities extending rearward into the insertion cavity.

[0008] Optionally, the limiting ring has a flat surface that fits against the side wall of the partition.

[0009] Optionally, the anti-rotation end face of the arc-shaped groove is fitted to the side wall of the partition.

[0010] Optionally, a limiting groove is provided on the side wall of the insertion cavity, and an elastic buckle is installed in the limiting groove.

[0011] Optionally, a limiting step is formed between the insertion cavity and the mounting hole, and the front end face of the protruding ridge abuts against the limiting step.

[0012] The present invention has the following advantages: The base assembly of the present invention eliminates the gap between the optical fiber assembly and the mounting hole by setting an elastic fixing component, thereby avoiding the shaking of the optical fiber assembly and ensuring the reliability of the optical fiber assembly. Attached Figure Description

[0013] Figure 1 Schematic diagram of the base assembly Figure 1 ;

[0014] Figure 2 Schematic diagram of the base assembly Figure 2 ;

[0015] Figure 3 This is a cross-sectional schematic diagram of the base assembly;

[0016] Figure 4 This is a schematic diagram of the base structure;

[0017] Figure 5 This is a schematic diagram of the fiber optic cable structure.

[0018] Figure 6 This is a structural schematic diagram of an elastic fastener;

[0019] In the figure, 10-base, 20-elastic fastener, 30-fiber optic assembly, 11-limiting slot, 12-disassembly hole, 13-insertion cavity, 14-mounting hole, 15-elastic arm, 16-limiting part, 17-mounting cavity, 18-partition, 19-limiting step, 21-arc-shaped slot, 22-protruding ridge, 23-elastic buckle, 24-opening, 25-anti-rotation end face, 26-guide slope, 31-limiting ring, 32-flat surface, 33-mating section, 34-conical guide surface. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not 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, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] like Figure 1 , Figure 2 and Figure 3As shown, a base assembly includes a base 10 and an optical fiber assembly 30. In this embodiment, the optical fiber assembly 30 is an existing product, so its specific structure and function will not be described in detail. The base 10 has a mounting cavity 17 at its front end and an insertion cavity 13 at its rear end. The bottom of the mounting cavity 17 has a mounting hole 14, which connects the mounting cavity 17 and the insertion cavity 13. In this embodiment, there are two mounting holes 14 and two mounting cavities 17, arranged side-by-side. A partition 18 is formed between the two mounting cavities 17, extending rearward into the insertion cavity 13. That is, two optical fiber assemblies 30 are installed in the base 10. Furthermore, an elastic arm 15 is provided at the bottom of the mounting cavity 17. The elastic arm 15 extends axially forward, and its front end has an inwardly inclined limiting part 16. Figure 5 As shown, a limiting ring 31 is provided on the optical fiber assembly 30. The front end of the optical fiber assembly 30 is located in the mounting cavity 17, and the rear end face of the limiting ring 31 abuts against the limiting part 16. The rear end of the optical fiber assembly 30 is located in the insertion cavity 13. During installation, the optical fiber assembly 30 is inserted into the insertion cavity 13 and aligned with the mounting hole 14. Then, the optical fiber assembly 30 is inserted into the mounting hole 14. When the limiting ring 31 interferes with the limiting part 16 of the elastic arm 15, the elastic arm 15 opens outward, thereby generating an elastic restoring force. When the limiting ring 31 passes the limiting part 16, the elastic arm 15... 5. Under the action of elastic restoring force, the limiting part 16 abuts against the limiting ring 31, thereby preventing the fiber optic assembly 30 from axially exiting the mounting cavity 17. During the installation of the fiber optic assembly 30, a gap is maintained between the fiber optic assembly 30 and the mounting hole 14 to ensure easy installation. After the initial installation of the fiber optic assembly 30, it can wobble due to the gap. In this embodiment, to prevent the fiber optic assembly 30 from wobbling, an elastic fixing member 20 is installed within the gap. Furthermore, as... Figure 6 As shown, the elastic fastener 20 includes an arc-shaped groove 21 with a through opening 24. A protruding rib 22 is provided on the outer side wall of the arc-shaped groove 21 away from the opening 24. The protruding rib 22 extends axially rearward, and an elastic buckle 23 is provided at the top rear end of the protruding rib 22. The elastic buckle 23 extends forward, and its front end has an outwardly protruding locking portion. A guide slope 26 is provided on the outer side wall of the front end of the locking portion. The fiber optic assembly 30 has a mating section 33 located at the rear end of the limiting ring 31. The arc-shaped groove 21 of the elastic fastener 20 is fitted onto the mating section 33, as shown. Figure 4As shown, a disassembly hole 12 is provided on the side wall of the insertion cavity 13, and the locking part of the elastic buckle 23 is located in the disassembly hole 12. Therefore, when the elastic fastener 20 is installed, the elastic fastener 20 can cover the mating section 33 of the optical fiber assembly 30. The elastic fastener 20 is also installed in the mounting hole 14, thereby preventing the optical fiber assembly 30 from shaking. Furthermore, an opening 24 is provided on the arc-shaped slot 21, so the arc-shaped slot 21 can expand slightly, thereby generating a certain elastic restoring force. In this embodiment, a tapered guide surface 34 is provided on the rear end face of the mating section 33 so that the arc-shaped groove 21 can be smoothly inserted into the mating section 33. When the arc-shaped groove 21 enters the mating section 33, the arc-shaped groove 21 will expand slightly. At this time, the arc-shaped groove 21 has a certain elastic restoring force, so that the arc-shaped groove 21 can clamp the mating section 33. Of course, in the design process, the arc-shaped groove 21 and the mating section 33 should be selected with a suitable mating relationship to ensure the installation of the elastic fastener 20.

[0027] In this embodiment, as Figure 5 As shown, a flat surface 32 is provided on the limiting ring 31, and the flat surface 32 is attached to the side wall of the partition 18, thereby preventing the fiber optic assembly 30 from rotating in the circumferential direction.

[0028] In this embodiment, as Figure 6 As shown, the end face formed by the opening 24 on the arc-shaped groove 21 is a flat anti-rotation end face 25. The anti-rotation end face 25 of the arc-shaped groove 21 fits against the side wall of the partition 18. At this time, the arc-shaped groove 21 also has anti-rotation energy. Furthermore, a limiting groove 11 is provided on the side wall of the insertion cavity 13. The elastic buckle 23 is installed in the limiting groove 11. Therefore, when installing the elastic fastener 20, the elastic buckle 23 is aligned with the limiting groove 11, thereby ensuring that the elastic fastener 20 is in the base. The accuracy of installation on the seat 10 is important. In this embodiment, the tail of the optical fiber assembly 30 has a cable. When the cable is short, the arc-shaped slot 21 can be directly inserted from the tail of the cable. However, when the cable is long, the arc-shaped slot 21 cannot be inserted from the tail of the cable. The arc-shaped slot 21 has a locking opening. At this time, the cable can be directly inserted into the arc-shaped slot 21 from the opening 24, and then pushed axially into the arc-shaped slot 21 so that the arc-shaped slot 21 can be installed in the mounting hole 14.

[0029] In this embodiment, as Figure 4As shown, a limiting step 19 is formed between the insertion cavity 13 and the mounting hole 14. The front end face of the protrusion 22 abuts against the limiting step 19. However, after the locking part enters the disassembly hole 12, the front end face of the protrusion 22 abuts against the limiting step 19, thus preventing the elastic fixing member 20 from moving forward axially. After the locking part is locked in the disassembly hole 12, the elastic fixing member 20 is also prevented from moving backward axially, thus ensuring the fixation of the elastic fixing member 20 in the axial position. During disassembly, a tool that can be inserted into the disassembly hole 12 is used to remove the locking part. The elastic buckle 23 is unlocked from the base 10 by removing the disassembly hole 12. Then, the elastic fastener 20 is pulled out axially backward to disassemble the elastic fastener 20. At this time, there is a gap between the mounting hole 14 and the fiber optic assembly 30. A tool is then inserted into the gap, and the tip of the tool is inserted into the limiting part 16. After the tip of the tool contacts the limiting part 16, the elastic arm 15 will open outward. Then, the fiber optic assembly 30 is pulled backward to separate the fiber optic assembly 30 from the base 10.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An elastic fastener, characterized in that: The device includes an arc-shaped slot with a through opening. A protruding ridge is provided on the outer side wall of the arc-shaped slot away from the opening. The protruding ridge extends axially backward. An elastic buckle is provided at the top of the rear end of the protruding ridge. The elastic buckle extends forward and has an outwardly protruding locking part at the front end. A guide slope is provided on the outer side wall of the front end of the locking part.

2. The elastic fastener according to claim 1, characterized in that: The end face formed by the opening in the arc-shaped slot is a flat, anti-rotation end face.

3. A base assembly, comprising a base and an optical fiber assembly, wherein the base has a mounting cavity at its front end and an insertion cavity at its rear end, a mounting hole is formed at the bottom of the mounting cavity, the mounting hole communicating with the mounting cavity and the insertion cavity, an elastic arm is further provided at the bottom of the mounting cavity, the elastic arm extends axially forward, and a limiting portion is provided at the front end of the elastic arm, a limiting ring is provided on the optical fiber assembly, the front end of the optical fiber assembly is located within the mounting cavity, and the rear end face of the limiting ring abuts against the limiting portion, and the rear end of the optical fiber assembly is located within the insertion cavity, characterized in that: There is a gap between the optical fiber assembly and the mounting hole, and the elastic fastener according to claim 1 or 2 is installed in the gap. The optical fiber assembly has a mating section, which is located at the rear end of the limiting ring. The arc-shaped slot of the elastic fastener is fitted on the mating section. A disassembly hole is provided on the side wall of the insertion cavity, and the snap part of the elastic buckle is located in the disassembly hole.

4. A base assembly according to claim 3, characterized in that: There are two mounting holes and two mounting cavities, and the two mounting holes and two mounting cavities are arranged side by side. A partition is formed between the two mounting cavities, and the partition extends backward into the insertion cavity.

5. A base assembly according to claim 4, characterized in that: The limiting ring has a flat surface, which fits against the side wall of the partition.

6. A base assembly according to claim 5, characterized in that: The anti-rotation end face of the arc-shaped slot is in contact with the side wall of the partition.

7. A base assembly according to claim 3, characterized in that: A limiting slot is provided on the side wall of the insertion cavity, and the elastic buckle is fitted into the limiting slot.

8. A base assembly according to claim 7, characterized in that: A limiting step is formed between the insertion cavity and the mounting hole, and the front end face of the protruding ridge abuts against the limiting step.

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