A multi-channel optical fiber positioning support
Patent Information
- Application Number
- CN202521975162.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-15
- Publication Date
- 2026-09-04
- Estimated Expiration
- 2035-09-15
AI Technical Summary
[0002]在实验室光纤定位夹持操作中，传统光纤定位支架的夹持结构多采用刚性设计，在对光纤进行固定时，缺乏柔性缓冲机制，容易因夹持力度控制不当对光纤造成挤压损伤，影响光纤的传输性能与使用寿命；同时，现有支架的角度调节组件在完成角度调整后，常因锁定结构不稳定，导致定位部件在实验过程中发生偏移，难以长时间维持光纤的精准定位状态，给实验操作的准确性和稳定性带来不利影响
[0010]Compared with the prior art, the beneficial effects of this utility model are as follows: In this utility model, the cooperation between the positioning block, the base plate, and the support rod effectively stabilizes and fixes the support rod, solving the problem of easy loosening during support rod installation and improving the overall stability of the bracket structure; the cooperation between the positioning rod, the locking platform, and the threaded platform flexibly locks the angle of the positioning platform, solving the problem of difficulty in fixing the positioning platform after angle adjustment and improving the accuracy of fiber positioning angle; the cooperation between the lead screw, the sliding groove, and the positioning frame smoothly adjusts the height of the positioning frame, solving the problem of inconvenient height adjustment and improving the convenience of fiber positioning height adjustment; the cooperation between the ratchet, the pawl, the spring, and the abutment block precisely locks the deflection angle of the deflection platform, solving the problem of easy displacement after angle adjustment and improving the reliability of fiber angle positioning; the cooperation between the clamping block, the clamping spring, and the mounting hole flexibly clamps the fiber, solving the problem of easy damage to the fiber by traditional rigid clamping and improving the safety and adaptability of fiber clamping.
Smart Images
Figure CN224720283U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of laboratory fiber optic positioning clamping devices, and in particular to a multi-channel fiber optic positioning bracket. Background Technology
[0002] In laboratory fiber optic positioning and clamping operations, traditional fiber optic positioning brackets often employ rigid designs. Lacking a flexible buffer mechanism, they are prone to damage due to improper clamping force, affecting transmission performance and lifespan. Furthermore, existing bracket angle adjustment components often experience locking structure instability after angle adjustment, leading to displacement of the positioning components during experiments. This makes it difficult to maintain precise fiber positioning over extended periods, negatively impacting the accuracy and stability of experimental operations. The traditional rigid clamping structure is particularly problematic due to its susceptibility to fiber damage and incompatibility with fibers of different diameters, resulting in poor fiber clamping safety and adaptability. This fails to meet the laboratory's requirements for precise and safe fiber optic positioning and clamping. Therefore, solutions to these problems are necessary. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a multi-channel fiber optic positioning bracket.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: a multi-channel fiber optic positioning bracket, comprising a substrate with multiple positioning holes, a support rod with a hollow structure vertically mounted on the top surface of the substrate, a positioning platform with a cavity structure rotatably connected to the upper end of the support rod, a vertical positioning rod rotatably connected to the top surface of the positioning platform, and U-shaped positioning frames slidably connected to both sides of the positioning platform, a deflection platform rotatably connected to the top surface of the positioning frame, an angle deflection component installed inside the positioning frame, a lifting and rotating component installed inside the positioning platform, and a flexible clamping component installed inside the deflection platform.
[0005] Preferably, the lower end of the inner wall of the support rod is provided with a threaded groove, and the lower end of the support rod is threadedly connected to a positioning block; the top surface of the positioning block abuts against the bottom surface of the substrate, the support rod is fixed to the substrate through the positioning block, and a threaded platform is installed in the middle of the inner cavity of the support rod. The inner wall of the positioning platform is provided with a threaded groove, the lower end of the positioning rod is provided with a thread that matches the threaded groove of the positioning platform, and a locking platform that matches the threaded platform is fixedly connected to the bottom surface of the positioning rod.
[0006] Preferably, the lifting and rotating assembly includes sliding grooves vertically formed on both sides of the positioning platform. The upper end of the sliding groove penetrates the top surface of the positioning platform, and a lead screw is vertically rotatably connected inside the sliding groove. Support plates are installed on both sides of the top surface of the positioning platform, and the top surface of the lead screw penetrates the support plates. The inner opposing surfaces of the two positioning frames are slidably connected in the sliding groove, and the lower end of the lead screw is threadedly connected to the positioning frame.
[0007] Preferably, the angle deflection assembly includes a deflection rod laterally rotatably connected inside the positioning frame, and a drive chamber is provided at the distal ends of the two positioning frames. The deflection rod passes through the deflection table and is placed in the drive chamber. A ratchet is fixedly connected at the distal ends of the two deflection rods. A rotating rod is laterally rotatably connected inside the drive chamber. A pawl is fixedly connected to the outside of the rotating rod. The pawl and the ratchet form a self-locking meshing structure.
[0008] Preferably, the inner sides of the opposing surfaces of the two drive chambers are provided with spring grooves for cooperating with the rotating rod. A spring spring is installed in the spring groove, and the two ends of the spring spring abut against the opposing inner surfaces of the rotating rod and the spring groove, respectively. An auxiliary platform is installed at the front end of the drive chamber. An abutment block is slidably connected to the upper end of the auxiliary platform. A self-locking spring is installed between the bottom surface of the auxiliary platform and the bottom surface of the abutment block. The top surface of the abutment block is provided with a rounded corner for cooperating with the pawl, and the top surface of the abutment block abuts against the bottom surface of the pawl.
[0009] Preferably, the flexible clamping assembly includes a plurality of equidistant horizontally opened mounting holes in the middle section of the deflection stage. Vertical clamping grooves are opened at the upper and lower ends of the mounting holes. A clamping block that flexibly matches the mounting hole is slidably connected between two clamping grooves. A clamping spring is installed between the far side of the two clamping blocks and the opposite side of the clamping groove, and the inner opposite sides of the two clamping blocks abut against each other.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: In this utility model, the cooperation between the positioning block, the base plate, and the support rod effectively stabilizes and fixes the support rod, solving the problem of easy loosening during support rod installation and improving the overall stability of the bracket structure; the cooperation between the positioning rod, the locking platform, and the threaded platform flexibly locks the angle of the positioning platform, solving the problem of difficulty in fixing the positioning platform after angle adjustment and improving the accuracy of fiber positioning angle; the cooperation between the lead screw, the sliding groove, and the positioning frame smoothly adjusts the height of the positioning frame, solving the problem of inconvenient height adjustment and improving the convenience of fiber positioning height adjustment; the cooperation between the ratchet, the pawl, the spring, and the abutment block precisely locks the deflection angle of the deflection platform, solving the problem of easy displacement after angle adjustment and improving the reliability of fiber angle positioning; the cooperation between the clamping block, the clamping spring, and the mounting hole flexibly clamps the fiber, solving the problem of easy damage to the fiber by traditional rigid clamping and improving the safety and adaptability of fiber clamping. Attached Figure Description
[0011] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure proposed in this utility model; Figure 2 This is a half-sectional schematic diagram of the overall structure proposed in this utility model; Figure 3 This is a partial sectional view of the overall structure proposed in this utility model; Figure 4 The present utility model proposes Figure 2 Enlarged schematic diagram of section A in the middle; Figure 5 The present utility model proposes Figure 2 Enlarged schematic diagram of section B; Figure 6 The present utility model proposes Figure 3 Enlarged schematic diagram of section C.
[0012] The numbers in the diagram are as follows: 1. Base plate; 2. Support rod; 3. Positioning stage; 4. Positioning rod; 5. Positioning frame; 6. Deflection stage; 7. Threaded stage; 8. Positioning block; 9. Locking stage; 10. Sliding groove; 11. Lead screw; 12. Support plate; 13. Deflection rod; 14. Drive chamber; 15. Ratchet; 16. Rotating rod; 17. Auxiliary stage; 18. Self-locking spring; 19. Abutment block; 20. Rebound spring; 21. Mounting hole; 22. Clamping block; 23. Clamping spring; 24. Pawl. Detailed Implementation
[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0014] Example: See Figures 1 to 6This utility model discloses a multi-channel fiber optic positioning bracket, comprising a base plate 1 with multiple positioning holes for easy installation of subsequent components; a hollow support rod 2 is vertically mounted on the top surface of the base plate 1 for easy installation of a positioning platform 3; a positioning platform 3 with a cavity structure is rotatably connected to the upper end of the support rod 2 for easy installation of a positioning rod 4; a vertical positioning rod 4 is rotatably connected to the top surface of the positioning platform 3 for easy fixing of the positioning platform 3 and the support rod 2 by a locking platform 9 fixed at the bottom; and U-shaped positioning frames 5 are slidably connected to both sides of the positioning platform 3 for easy installation of a deflection platform 6; a deflection platform 6 is rotatably connected to the top surface of the positioning frame 5. The positioning frame 5 is equipped with an angle deflection component, the positioning platform 3 is equipped with a lifting and rotating component, and the deflection platform 6 is equipped with a flexible clamping component. A threaded groove is provided at the lower end of the inner wall of the support rod 2, and a positioning block 8 is threadedly connected to the lower end of the support rod 2. The top surface of the positioning block 8 abuts against the bottom surface of the substrate 1, facilitating the installation and fixing of the support rod 2 to the surface of the substrate 1. The support rod 2 is fixed to the substrate 1 via the positioning block 8, and a threaded platform 7 is installed in the middle of the inner cavity of the support rod 2, facilitating the threaded connection of the locking platform 9. A threaded groove is provided on the inner wall of the positioning platform 3, and a thread is provided at the lower end of the positioning rod 4 to match the threaded groove of the positioning platform 3. A matching thread is also fixed to the bottom surface of the positioning rod 4. The locking platform 9 of platform 7 facilitates the fixing of positioning platform 3 and support rod 2; the lifting and rotating assembly includes sliding grooves 10 vertically opened on both sides of positioning platform 3, the upper end of sliding groove 10 penetrating the top surface of positioning platform 3, the sliding groove 10 facilitates the limiting positioning frame 5 and the installation of lead screw 11; and the lead screw 11 is vertically rotatably connected in the sliding groove 10, the lead screw 11 facilitates the installation of driving positioning frame 5; support plates 12 are installed on both sides of the top surface of positioning platform 3, the top surface of lead screw 11 penetrates the support plate 12, the support plate 12 facilitates the prevention of movement of positioning frame 5; the inner opposing surfaces of the two positioning frames 5 are slidably connected in the sliding groove 10, and the lower end of lead screw 11 is threadedly connected to positioning frame 5, angle The deflection assembly includes a deflection rod 13 laterally rotatably connected inside the positioning frame 5, which facilitates the installation of a ratchet 15. A drive chamber 14 is provided at the distal ends of the two positioning frames 5, which facilitates the installation of components corresponding to the ratchet 15, such as a rotating rod 16. The deflection rod 13 passes through the deflection table 6 and is placed inside the drive chamber 14, with the ratchet 15 fixedly connected to the distal ends of the two deflection rods 13. The ratchet 15 facilitates the engagement with the subsequent pawl 24 to form a self-locking structure. A rotating rod 16 is laterally rotatably connected inside the drive chamber 14, which facilitates the installation of the pawl 24. A pawl 24 is fixedly connected to the outer side of the rotating rod 16, and the pawl 24 and the ratchet 15 form a meshing self-locking structure.
[0015] In this invention, two drive chambers 14 have spring-loaded grooves on their inner sides facing each other, which are designed to accommodate a rotating rod 16. Spring-loaded springs 20 are installed in these grooves to provide a driving force for the rotation rod 16 to reset. The two ends of the spring-loaded springs 20 abut against the rotating rod 16 and the inner sides of the spring-loaded grooves, respectively. An auxiliary platform 17 is installed at the front end of the drive chambers 14, which facilitates the installation of a self-locking spring 18 and a stop block 19. A stop block 19 is slidably connected to the upper end of the auxiliary platform 17, which abuts against the bottom surface of the pawl 24 to provide a reset for the pawl 24 and to engage the ratchet 15, providing a driving force. A self-locking spring 18 is installed between the inner bottom surface of the auxiliary platform 17 and the bottom surface of the stop block 19. The locking spring 18 facilitates the provision of driving force to the abutment block 19; the top surface of the abutment block 19 is provided with a rounded corner that engages with the pawl 24, and the top surface of the abutment block 19 abuts against the bottom surface of the pawl 24. The flexible clamping assembly includes a plurality of mounting holes 21 that are equidistantly and laterally opened in the middle section of the deflection stage 6. Vertical clamping grooves are provided at the upper and lower ends of the mounting holes 21, and clamping blocks 22 are easily installed through the mounting holes 21; a clamping block 22 that flexibly engages with the mounting holes 21 is slidably connected between the two clamping grooves, and the clamping block 22 facilitates the clamping of optical fibers; clamping springs 23 are installed between the far surfaces of the two clamping blocks 22 and the opposite surfaces of the clamping grooves, and the inner opposite surfaces of the two clamping blocks 22 abut against each other, and the clamping springs 23 facilitate the provision of driving force to the clamping blocks 22.
[0016] Working Principle: In use of this invention, the positioning block 8 is first rotated and installed onto the bottom surface of the support rod 2 via the bottom surface of the base plate 1, and the support rod 2 is fixed on the base plate 1. Then, the base plate 1 is fixed in the expected position. The optical fiber is then passed through the mounting hole 21 opened in the deflection stage 6. The optical fiber passes through the clamping block 22, and the clamping block 22 is pressed against the clamping spring 23. When the optical fiber is inserted, the clamping spring 23 provides driving force to the clamping block 22 to non-rigidly clamp the optical fiber. After clamping, the positioning rod 4 is rotated depending on the usage or experimental scenario. The rotation of the positioning rod 4 causes the locking platform 9 to rotate, thereby separating the locking platform 9 from the threaded platform 7. After separation, the locking platform 9 releases the positioning rod 4 and the positioning platform 3 from the support rod 2. Then, the operator manually rotates the positioning platform 3 to the predetermined angle with the help of an external tool. After rotating the positioning rod 4, it is locked by the locking platform 9 engaging with the threaded platform 7. Then, the screw 11, which is vertically installed in the sliding groove 10 on the top surface of the support plate 12, is rotated. The screw 11 drives the positioning frame 5 to rise and fall. When the positioning frame 5 rises and falls to the predetermined position, the rotation stops. After the operator manually swings the deflection table 6, since the deflection table 6 and the positioning frame 5 are rotatably connected by the deflection rod 13, and since a ratchet 15 is fixed to one side of the deflection rod 13, when the operator rotates the deflection table 6, the ratchet 15 located in the drive chamber 14 will rotate, and the pawl 24 fixed to the rotating rod 16 will rotate periodically with the ratchet 15. The self-locking spring 18 installed in the auxiliary table 17 will provide driving force for the abutment block 19 and driving force for the pawl 24 to reset. When the deflection table 6 deflects to the appropriate position... After the position is reached, rotation stops. The self-locking structure between ratchet 15 and pawl 24 will limit the deflection table 6. When the operator rotates the deflection table 6 beyond the predetermined position, it will squeeze the rotating rod 16, causing the pawl 24 to move and squeeze the return spring 20 to form a misalignment with the ratchet 15, thus releasing the limit. After the limit is released, the operator rotates the deflection table 6. After rotation is complete, the rotating rod 16 can be released. The return spring 20 will provide driving force for the rotation rod 16 to reset. At this time, all preparations are completed, and the next step can be carried out.
[0017] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A multi-channel fiber optic positioning bracket, comprising a substrate (1) with multiple positioning holes, characterized in that: The base plate (1) is vertically mounted with a support rod (2) with a hollow structure. The upper end of the support rod (2) is rotatably connected to a positioning platform (3) with a cavity structure. The top surface of the positioning platform (3) is rotatably connected to a vertical positioning rod (4). The positioning platform (3) is slidably connected to two sides of the positioning platform (3) with U-shaped positioning frames (5). The top surface of the positioning frame (5) is rotatably connected to a deflection platform (6). An angle deflection component is installed inside the positioning frame (5). A lifting and rotating component is installed inside the positioning platform (3). A flexible clamping component is installed inside the deflection platform (6).
2. The multi-channel fiber optic positioning bracket according to claim 1, characterized in that: The lower end of the inner wall of the support rod (2) is provided with a threaded groove, and the lower end of the support rod (2) is threadedly connected to a positioning block (8); the top surface of the positioning block (8) abuts against the bottom surface of the substrate (1), the support rod (2) is fixed to the substrate (1) through the positioning block (8), and a threaded platform (7) is installed in the middle of the inner cavity of the support rod (2). The inner wall of the positioning platform (3) is provided with a threaded groove, and the lower end of the positioning rod (4) is provided with a thread that matches the threaded groove of the positioning platform (3), and the bottom surface of the positioning rod (4) is fixedly connected to a locking platform (9) that matches the threaded platform (7).
3. The multi-channel fiber optic positioning bracket according to claim 1, characterized in that: The lifting and rotating assembly includes sliding grooves (10) vertically opened on both sides of the positioning platform (3). The upper end of the sliding groove (10) penetrates the top surface of the positioning platform (3), and a lead screw (11) is vertically rotatably connected in the sliding groove (10). Support plates (12) are installed on both sides of the top surface of the positioning platform (3). The top surface of the lead screw (11) penetrates the support plate (12). The inner opposite surfaces of the two positioning frames (5) are slidably connected in the sliding groove (10), and the lower end of the lead screw (11) is threadedly connected to the positioning frame (5).
4. A multi-channel fiber optic positioning bracket according to claim 1, characterized in that: The angle deflection assembly includes a deflection rod (13) that is laterally rotatably connected inside the positioning frame (5). The two positioning frames (5) have a drive chamber (14) at their far ends. The deflection rod (13) passes through the deflection table (6) and is placed inside the drive chamber (14). The two deflection rods (13) are fixedly connected to the far ends of each other with a ratchet (15). A rotating rod (16) is laterally rotatably connected inside the drive chamber (14). A pawl (24) is fixedly connected to the outside of the rotating rod (16). The pawl (24) and the ratchet (15) form a meshing self-locking structure.
5. A multi-channel fiber optic positioning bracket according to claim 4, characterized in that: The inner sides of the two drive chambers (14) are provided with spring grooves for cooperating with the rotating rod (16). Spring springs (20) are installed in the spring grooves. The two ends of the spring springs (20) abut against the rotating rod (16) and the inner sides of the spring grooves respectively. An auxiliary platform (17) is installed at the front end of the drive chamber (14). An abutment block (19) is slidably connected to the upper end of the auxiliary platform (17). A self-locking spring (18) is installed between the bottom surface of the auxiliary platform (17) and the bottom surface of the abutment block (19). The top surface of the abutment block (19) is provided with a rounded corner for cooperating with the pawl (24). The top surface of the abutment block (19) abuts against the bottom surface of the pawl (24).
6. A multi-channel fiber optic positioning bracket according to claim 1, characterized in that: The flexible clamping assembly includes multiple mounting holes (21) that are equidistantly and laterally opened in the middle section of the deflection stage (6). Vertical clamping grooves are provided at the upper and lower ends of the mounting holes (21). A clamping block (22) that flexibly fits the mounting hole (21) is slidably connected between two clamping grooves. A clamping spring (23) is installed between the far side of the two clamping blocks (22) and the opposite side of the clamping groove, and the inner opposite sides of the two clamping blocks (22) abut against each other.