Optical fiber fixing device for laser detection

Abstract

The application relates to the technical field of semiconductor lasers, in particular to a fiber fixing device for laser detection, which comprises a base, a clamping plate linearly and slidably connected to the base, a strip-shaped threading groove formed in the clamping plate, a limiting plate fixed on the base and used for shielding the threading groove, the threading groove comprising a pressing end and a threading end, the distance between the pressing end and the limiting plate being smaller than the diameter of the optical fiber when the clamping plate moves to the limit position in the direction of the threading end, and the distance between the pressing end and the limiting plate being greater than the diameter of the optical fiber when the clamping plate moves to the limit position in the direction of the pressing end. An operator exposes the threading groove by pulling the clamping plate, inserts the optical fiber into the threading groove and then releases the clamping plate, the clamping plate falls by itself, the pressing end presses on the optical fiber, and the optical fiber is clamped between the limiting plate and the clamping plate. The base is directly connected with an integrating sphere, and the optical fiber after being clamped does not need to be connected with the integrating sphere again, so that the operation steps are saved, and the work efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of semiconductor lasers, and in particular to an optical fiber fixing device for laser detection. Background Technology

[0002] When using an integrating sphere (such as a transmittance integrating sphere) to test a laser, it is often necessary to use a clamp to hold the optical fiber, then feed the optical fiber into the integrating sphere and tighten the clamp onto the integrating sphere.

[0003] This process involves two steps: 1. Passing the optical fiber through the clamp and clamping it, just like threading a needle; 2. Tightening the clamp onto the integrating sphere.

[0004] This process is actually very troublesome and inefficient in practice. Summary of the Invention

[0005] To improve efficiency, this application provides an optical fiber fixing device for laser detection.

[0006] The optical fiber fixing device for laser testing provided in this application adopts the following technical solution: A fiber optic fixing device for laser detection includes a base fixedly connected to an integrating sphere. A clamping plate is linearly slidably connected to the base. A strip-shaped threading groove is formed on the clamping plate along the sliding direction of the clamping plate. The width of the threading groove is greater than the diameter of the optical fiber. A limiting plate for blocking the threading groove is fixed on the base. The threading groove includes a clamping end and a threading end. When the clamping plate moves to its limit position towards the threading end, the distance between the clamping end and the limiting plate is less than the diameter of the optical fiber. When the clamping plate moves to its limit position towards the clamping end, the distance between the clamping end and the limiting plate is greater than the diameter of the optical fiber.

[0007] By adopting the above technical solution, when threading optical fibers, the operator pulls up the clamping plate to expose the threading slot, inserts the optical fiber into the slot, and then releases the clamping plate. The clamping plate then falls down automatically, pressing the wire clamping end onto the optical fiber. The optical fiber is clamped between the limiting plate and the clamping plate, thus completing the threading and fixing of the optical fiber. Furthermore, the base is directly connected to the integrating sphere, eliminating the need to re-connect the clamped optical fiber to the integrating sphere, saving operational steps and improving work efficiency.

[0008] Preferably, the pressure end is arc-shaped and its diameter is no greater than the diameter of the optical fiber.

[0009] By adopting the above technical solution, the arc-shaped clamping end fits the outer wall of the optical fiber better, improving the clamping effect on the optical fiber.

[0010] Preferably, a limiting post is fixed on the base, and a strip-shaped limiting groove is provided on the clamping plate. The limiting post is slidably connected in the limiting groove, and the limiting groove is parallel to the threading groove.

[0011] By adopting the above technical solution, during the sliding process of the clamping plate, the limiting post slides in the limiting groove. The limiting post and the limiting groove cooperate with each other to limit the movement stroke of the clamping plate and prevent the clamping plate from moving excessively and detaching from the base.

[0012] Preferably, a limiting spring is provided between the limiting post and the limiting groove. When the limiting spring is in its natural state, the distance between the pressure end and the limiting plate is less than the diameter of the optical fiber.

[0013] By adopting the above technical solution, after the optical fiber is inserted into the cable tray, the operator releases the clamping plate. The clamping plate then presses down and resets under the action of the limiting spring, thus clamping the optical fiber. The limiting spring increases the clamping force of the clamping plate on the optical fiber, thereby improving the clamping effect.

[0014] Preferably, the limiting plate has an arc-shaped receiving groove facing the pressure end, which is compatible with the optical fiber. The inner wall of the receiving groove has a detection hole along the radial direction of the receiving groove. A detection rod is slidably connected in the detection hole. The limiting plate has a locking hole parallel to the receiving groove. The locking hole is connected to the detection hole. A locking rod is slidably connected in the locking hole. A locking block is fixed on the locking rod. A detection block that cooperates with the locking block is fixed on the detection rod. The detection block is located on the side of the locking block closer to the clamping plate. The clamping plate has a fixing hole that cooperates with the locking rod.

[0015] By adopting the above technical solution, the optical fiber is inserted into the cable insertion groove. The clamping plate presses down on the optical fiber, pressing it against the limiting plate and into the receiving groove. The optical fiber applies pressure to the detection rod, causing it to move towards the locking hole. The detection block moves synchronously and is offset from the locking block, no longer obstructing it. At this point, the locking rod is pushed into the fixing hole, thus fixing the limiting block and the clamping plate together. The clamping plate can no longer slide, locking it in place and ensuring the stability of the optical fiber during the testing process.

[0016] Preferably, a detection spring is provided between the detection rod and the detection hole. When the detection spring is in its natural state, the end of the detection rod extends out of the detection hole and is located in the receiving groove, with the detection block and the locking block facing each other. A locking spring is provided between the locking rod and the locking hole. When the locking spring is in its natural state, the end of the locking rod extends out of the locking hole.

[0017] By adopting the above technical solution, when the optical fiber is not pressed into the receiving groove, the detection spring is in its natural state, and the detection rod protrudes from the receiving groove under the action of the detection spring to contact the optical fiber. Furthermore, the detection block and locking block contact and block each other, with the detection block positioned between the locking block and the clamping plate. The locking block and locking rod cannot move towards the clamping plate, thus limiting the initial position of the locking rod. Simultaneously, the locking spring is in a compressed state. When the optical fiber is pressed into the receiving groove, the detection rod and detection block move downwards, and the locking rod and locking block pop out and insert into the fixing hole under the action of the locking spring. The locking spring and detection spring provide corresponding elastic force to the detection rod and locking rod, ensuring the reset of the detection rod and the locking force of the locking rod.

[0018] Preferably, the end of the locking rod away from the clamping plate extends out of the locking hole and is fixed with a limiting block whose diameter is larger than the inner diameter of the locking hole. When the locking rod is inserted into the fixing hole, the limiting block abuts against the limiting plate.

[0019] By adopting the above technical solution, after the test is completed, the operator pulls the locking rod outward using the limit block to remove it from the fixing hole. The limit block restricts the movement stroke of the locking rod, preventing it from retracting completely into the locking hole and affecting its reset.

[0020] Preferably, a pressure block is fixed on the side of the clamping plate facing the base, located above the wire-threading groove, and the pressure block is located directly above the base.

[0021] By adopting the above technical solution, the optical fiber passes through the cable tray and is located below the pressure block and above the base. The clamping plate presses down to press the optical fiber between the pressure block and the base, thereby improving the stability of the optical fiber.

[0022] In summary, this application includes at least one of the following beneficial technical effects: The base is directly connected to the integrating sphere, eliminating the need to reconnect the clamped fiber to the integrating sphere, thus saving operation steps and improving work efficiency; Operators can pull the clamping plate to expose or cover the cable tray, thereby enabling the fiber optic cable to be threaded or clamped and fixed, which is convenient and improves efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the embodiment; Figure 2 This is a schematic diagram of the internal structure in the embodiment.

[0024] Explanation of reference numerals in the attached figures: 1. Base; 11. Limiting post; 12. Limiting spring; 2. Clamping plate; 21. Wire groove; 211. Wire pressing end; 212. Wire passing end; 22. Limiting groove; 23. Fixing hole; 24. Pressing block; 3. Limiting plate; 31. Receiving groove; 32. Detection hole; 33. Locking hole; 4. Detection rod; 41. Detection block; 5. Locking rod; 51. Locking block; 52. Limiting block; 6. Detection spring; 7. Locking spring. Detailed Implementation

[0025] The present application will be further described in detail below with reference to all the accompanying drawings.

[0026] Example

[0027] This application discloses an optical fiber fixing device for laser detection, referring to... Figure 1 and Figure 2 The system includes a base 1 that is fixedly connected to the integrating sphere by bolts, and the upper end of the base 1 is the connection port between the integrating sphere and the optical fiber. A limiting plate 3 is fixed on the side of the base 1 away from the integrating sphere, and a clamping plate 2 is vertically slidably connected between the base 1 and the limiting plate 3.

[0028] Reference Figure 1 and Figure 2 The upper end of the clamping plate 2 is higher than that of the base 1, and a pressure block 24 is fixed to the upper end of the side of the clamping plate 2 facing the base 1, located directly above the base 1. A vertically arranged cable-passing groove 21 with a width greater than the diameter of the optical fiber is provided on the clamping plate 2. The upper end of the cable-passing groove 21 is an arc-shaped clamping end 211 located below the pressure block 24, and the lower end is a cable-passing end 212. The diameter of the clamping end 211 is not greater than the diameter of the optical fiber.

[0029] Reference Figure 1 and Figure 2 When the clamping plate 2 slides vertically, the limiting plate 3 blocks the wire-passing groove 21, and the length of the exposed part of the wire-passing groove 21 varies depending on the height of the clamping plate 2. When the clamping plate 2 moves to its limit position towards the wire-passing end 212, the distance between the wire-pressing end 211 and the limiting plate 3 is less than the diameter of the optical fiber; when the clamping plate 2 moves to its limit position towards the wire-pressing end 211, the distance between the wire-pressing end 211 and the limiting plate 3 is greater than the diameter of the optical fiber.

[0030] Reference Figure 1 and Figure 2 A limiting groove 22 is vertically provided on the clamping plate 2, located below the wire threading groove 21. A limiting post 11 is fixed on the base 1 and slidably connected to the limiting groove 22. A limiting spring 12 is provided between the limiting post 11 and the limiting groove 22. When the limiting spring 12 is in its natural state, the distance between the wire pressing end 211 and the limiting plate 3 is less than the diameter of the optical fiber.

[0031] Reference Figure 1 and Figure 2 The operator pulls the clamping plate 2 upwards, compressing the limiting spring 12 and exposing most of the cable pass-through groove 21. The operator inserts the optical fiber through the cable pass-through groove 21 and extends it from the other side into the integrating sphere. The operator releases the clamping plate 2, which moves downwards under the action of the limiting spring 12 and its own weight until the limiting post 11 contacts the top of the limiting groove 22. The clamping end 211 presses the optical fiber onto the limiting plate 3, and the optical fiber clamping block 24, which passes through the cable pass-through groove 21, presses against the base 1, thereby improving the stability of the optical fiber and preventing it from moving during testing.

[0032] Reference Figure 1 and Figure 2 The upper surface of the limiting plate 3 has a horizontally recessed arc-shaped receiving groove 31 for mating with the optical fiber. The receiving groove 31 is directly opposite the threading groove 21. When the clamping plate 2 presses down on the optical fiber, it presses the optical fiber into the receiving groove 31, increasing the contact area between the optical fiber and the limiting plate 3 and improving the stability of the optical fiber.

[0033] Reference Figure 1 and Figure 2 A vertically arranged detection hole 32 is formed radially on the inner wall of the receiving groove 31. A detection rod 4 for detecting optical fibers is slidably connected inside the detection hole 32. When the optical fiber is pressed into the receiving groove 31, it will press the detection rod 4 downward. A detection spring 6 is provided between the detection rod 4 and the detection hole 32. When the detection spring 6 is in its natural state, the end of the detection rod 4 extends out of the detection hole 32 and is located inside the receiving groove 31 to facilitate contact with the optical fiber.

[0034] Reference Figure 1 and Figure 2 The limiting plate 3 has a horizontally opening locking hole 33 located below the receiving groove 31. A locking rod 5 is horizontally slidably connected within the locking hole 33. The clamping plate 2 has a fixing hole 23 that mates with the locking rod 5. When the locking rod 5 is inserted into the fixing hole 23, the clamping plate 2 is fixedly connected to the limiting plate 3, and the clamping plate 2 is locked and cannot slide, thereby improving the clamping effect on the optical fiber. A locking spring 7 is provided between the locking rod 5 and the locking hole 33. When the locking spring 7 is in its natural state, the end of the locking rod 5 extends out of the locking hole 33 and inserts into the fixing hole 23.

[0035] Reference Figure 1 and Figure 2 One end of the locking rod 5, away from the clamping plate 2, extends out of the locking hole 33 and is fixed with a limiting block 52 whose diameter is larger than the inner diameter of the locking hole 33. When the locking rod 5 is inserted into the fixing hole 23, the limiting block 52 abuts against the limiting plate 3. After the test, the operator pulls the locking rod 5 outward through the limiting block 52 to pull the locking rod 5 out of the fixing hole 23. The limiting block 52 limits the movement stroke of the locking rod 5 to prevent the locking rod 5 from retracting completely into the locking hole 33, which would affect the reset of the locking rod 5.

[0036] Reference Figure 1 and Figure 2 The locking hole 33 is connected to the detection hole 32. A locking block 51 located within the locking hole 33 is fixed to the lower end of the detection rod 4. A detection block 41 is fixed to the detection rod 4, with the detection block 41 positioned on the side of the locking block 51 facing the clamping plate 2. When the detection spring 6 is in its natural state, the detection block 41 and the locking block 51 face each other and block the locking block 51; at this time, the locking spring 7 is in a compressed state. The detection rod 4 and the locking rod 5 are offset, their axes not in the same plane, to avoid mutual interference.

[0037] Reference Figure 1 and Figure 2 When the optical fiber is pressed into the receiving groove 31, the detection rod 4 moves the detection block 41 downwards, causing the detection block 41 and the locking block 51 to disengage. At this time, the locking block 51 and the locking rod 5 extend into the insertion fixing hole 23 under the action of the locking spring 7, thereby locking the clamping plate 2. The entire operation process requires no additional steps. The operator only needs to pull and release the clamping plate 2 to clamp and fix the optical fiber, which greatly improves the stability of the optical fiber during the test. It is both efficient and ensures the stability of the test.

[0038] The implementation principle of the fiber optic fixing device for laser testing in this embodiment is as follows: The operator pulls the clamping plate 2 upwards, exposing the threading groove 21. The operator passes the fiber optic cable through the threading groove 21 and connects it to the integrating sphere. The operator then releases the clamping plate 2, which clamps and fixes the fiber optic cable, allowing for testing. After the test, the operator pulls the limiting block 52 and then pulls the clamping plate 2 upwards to remove the fiber optic cable.

[0039] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A fiber optic fixing device for laser detection, comprising a base (1) fixedly connected to an integrating sphere, characterized in that: A clamping plate (2) is linearly slidably connected to the base (1). A strip-shaped wire-passing groove (21) is provided on the clamping plate (2). The wire-passing groove (21) is opened along the sliding direction of the clamping plate (2). The width of the wire-passing groove (21) is greater than the diameter of the optical fiber. A limiting plate (3) for blocking the wire-passing groove (21) is fixed on the base (1). The wire-passing groove (21) includes a wire-pressing end (211) and a wire-passing end (212). When the clamping plate (2) moves to the limit position in the direction of the wire-passing end (212), the distance between the wire-pressing end (211) and the limiting plate (3) is less than the diameter of the optical fiber. When the clamping plate (2) moves to the limit position in the direction of the wire-pressing end (211), the distance between the wire-pressing end (211) and the limiting plate (3) is greater than the diameter of the optical fiber. The limiting plate (3) has an arc-shaped receiving groove (31) that cooperates with the optical fiber on the side facing the wire pressing end (211). The inner wall of the receiving groove (31) has a detection hole (32) radially arranged along the receiving groove (31). A detection rod (4) is slidably connected in the detection hole (32). The limiting plate (3) has a locking hole (33) parallel to the receiving groove (31). The locking hole (33) is connected to the detection hole (32). A locking rod (5) is slidably connected in the locking hole (33). A locking block (51) is fixed on the locking rod (5). A detection block (41) that cooperates with the locking block (51) is fixed on the detection rod (4). The detection block (41) is located on the side of the locking block (51) close to the clamping plate (2). The clamping plate (2) has a fixing hole (23) that cooperates with the locking rod (5).

2. The fiber optic fixing device for laser detection according to claim 1, characterized in that: The pressure end (211) is designed to be arc-shaped and its diameter is not greater than the diameter of the optical fiber.

3. The fiber optic fixing device for laser detection according to claim 1, characterized in that: A limiting post (11) is fixed on the base (1), and a strip-shaped limiting groove (22) is provided on the clamping plate (2). The limiting post (11) is slidably connected in the limiting groove (22), and the limiting groove (22) is parallel to the threading groove (21).

4. The fiber optic fixing device for laser detection according to claim 3, characterized in that: A limiting spring (12) is provided between the limiting post (11) and the limiting groove (22). When the limiting spring (12) is in its natural state, the distance between the wire pressing end (211) and the limiting plate (3) is less than the diameter of the optical fiber.

5. The fiber optic fixing device for laser detection according to claim 1, characterized in that: A detection spring (6) is provided between the detection rod (4) and the detection hole (32). When the detection spring (6) is in its natural state, the end of the detection rod (4) extends out of the detection hole (32) and is located in the receiving groove (31), and the detection block (41) and the locking block (51) are facing each other. A locking spring (7) is provided between the locking rod (5) and the locking hole (33). When the locking spring (7) is in its natural state, the end of the locking rod (5) extends out of the locking hole (33).

6. The fiber optic fixing device for laser detection according to claim 1, characterized in that: The locking rod (5) extends out of the locking hole (33) at one end away from the clamping plate (2) and is fixed with a limiting block (52) with a diameter larger than the inner diameter of the locking hole (33). When the locking rod (5) is inserted into the fixing hole (23), the limiting block (52) abuts against the limiting plate (3).

7. The fiber optic fixing device for laser detection according to claim 1, characterized in that: The clamping plate (2) has a pressure block (24) fixed on the side facing the base (1) above the wire groove (21), and the pressure block (24) is located directly above the base (1).

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