Detection head protection device for optical fiber detection

Abstract

The utility model relates to the technical field of optical fibers, and discloses a detection head protection device for optical fiber detection, which comprises an optical fiber detector body. The cable is mounted on one side of the optical fiber detector body; the protection part is arranged at one end of the cable; the clamping part is fixedly connected to the top of the optical fiber detector body; wherein the protection part comprises an optical fiber detection head body which is arranged at one end of the cable. By loosening a limiting block, an arc-shaped plate is connected with an annular groove under the action of a second spring, so that the purpose of controlling an L-shaped rotating plate to be rotationally connected with the optical fiber detection head body is achieved, the L-shaped rotating plate is tightly attached to the outer wall of the optical fiber detection head body, a brake plate is loosened, a rectangular clamping column is connected with a rectangular clamping groove in a clamped mode under the action of a first spring, and the optical fiber detection head body is clamped. Therefore, the purpose of fixing the position of the L-shaped rotating plate is achieved, and the purpose of surrounding and protecting the optical fiber detection head body under the action of the connecting plate is achieved.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber technology, specifically to a protection device for a detection head used in optical fiber testing. Background Technology

[0002] Optical fiber, also known as optical waveguide fiber, is a flexible pure glass fiber made of glass or plastic. It is a light transmission tool that uses the principle of total internal reflection to transmit light in these fibers. The world's first optical fiber was made by Kao Kuen, the father of optical fiber. Optical fiber is mainly composed of a core and a cladding. The core and cladding are concentric glass cylinders. The refractive index n1 of the core is slightly higher than that of the cladding n2. When light waves enter the optical fiber at a small angle from the end face, they are reflected, either partially or completely, at the interface between the core and the cladding to the other side of the interface, where they are reflected again. This repeated reflection allows the light signal to propagate forward.

[0003] In current fiber optic testing devices, the detection head, as the core component of the detector, is not only crucial but also extremely vulnerable to damage. Therefore, protecting the detection head is of paramount importance. Furthermore, the detection head is usually connected to the testing body via a cable, which presents a significant problem when transporting the fiber optic testing body: the detection head is easily damaged by dragging. Utility Model Content

[0004] The purpose of this invention is to provide a protection device for the detection head of optical fiber detection, thereby achieving the above-mentioned objective.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a protective device for a fiber optic detection head, comprising: a fiber optic detector body; a cable installed on one side of the fiber optic detector body; a protective portion disposed at one end of the cable; and a locking portion fixedly connected to the top of the fiber optic detector body; wherein the protective portion comprises: a fiber optic detector head body installed at one end of the cable; and a fixing base fixedly connected to one side of the fiber optic detector head body, wherein the fixing bases are symmetrically arranged.

[0006] Preferably, one end of the fixing base is provided with a sliding groove, the sliding grooves are symmetrically arranged, the outer wall of the fixing base is provided with a sliding groove, the sliding grooves are symmetrically arranged, the sliding grooves are connected to the sliding grooves, one end of the fixing base is provided with an annular groove, the annular grooves are symmetrically arranged, and a limiting plate is fixedly connected to one side of the optical fiber detector body.

[0007] Preferably, a rectangular locking post is slidably connected inside the first slide groove, and a brake plate is fixedly connected to one side of the rectangular locking post. The brake plate is slidably connected inside the second slide groove. A spring is provided between the rectangular locking post and the first slide groove. One end of the spring is fixedly connected to one end of the rectangular locking post, and the other end of the spring is fixedly connected to the inner wall of the first slide groove. The engaging connection between the rectangular locking post and the rectangular locking post further enhances the stability between the L-shaped rotating plate and the fiber optic detector body.

[0008] Preferably, an L-shaped rotating plate is movably connected to the outer wall of the fixed base. The inner wall of the L-shaped rotating plate has a rectangular slot that engages with a rectangular post. The inner wall of the L-shaped rotating plate has a sliding groove three that is equidistant from each other around its circumference. The interior of the L-shaped rotating plate has a sliding groove four that communicates with the sliding groove three. The L-shaped rotating plate can fit tightly against the outer wall of the fiber optic detector body, effectively preventing dust, dirt, and other impurities from entering the interior of the fiber optic detector body.

[0009] Preferably, a connecting plate is fixedly connected to one side of the L-shaped rotating plate, the connecting plates are symmetrically arranged, a handle is fixedly connected to one side of the L-shaped rotating plate, a retaining ring is fixedly connected to one side of the connecting plate, and the L-shaped rotating plate is adapted to the limiting plate.

[0010] Preferably, an arc-shaped plate is slidably connected inside the slide groove three, the arc-shaped plate is adapted to the annular groove, a sliding plate is fixedly connected to one end of the arc-shaped plate, the sliding plate is slidably connected inside the slide groove four, a transmission rod is fixedly connected to one side of the sliding plate, one end of the transmission rod extends outward through the L-shaped rotating plate and the connecting plate, a limit block is fixedly connected to one end of the transmission rod, and a spring two is fixedly connected between the sliding plate and the slide groove four.

[0011] Preferably, the engaging portion includes: a connecting post, fixedly connected to the top of the fiber optic detector body, the connecting posts being symmetrically arranged; and a connecting block, fixedly connected to the top of the connecting post.

[0012] Preferably, the connecting block has a cross-shaped sliding opening inside, a fixing block is fixedly connected inside the cross-shaped sliding opening, a trapezoidal locking block is slidably connected inside the cross-shaped sliding opening, and a conical block is fixedly connected to the top of the connecting block. The connecting post, the connecting block, and the conical block are all adapted to the retaining ring.

[0013] Preferably, a spring three is provided between the trapezoidal block and the cross slide. One end of the spring three is fixedly connected to one end of the trapezoidal block, and the other end of the spring three is fixedly connected to the inner wall of one end of the cross slide. The trapezoidal block is engaged with the retaining ring. Under the compression of the retaining ring, the trapezoidal block slides and retracts along the trajectory of the cross slide, and is reset under the action of the spring three, forming an effective blocking limit.

[0014] This invention provides a protective device for the detection head of an optical fiber detector. It has the following advantages:

[0015] (1) By loosening the limiting block, the arc plate is connected to the annular groove under the action of the second spring, thereby achieving the purpose of controlling the L-shaped rotating plate and the optical fiber detector body to rotate and connect. The L-shaped rotating plate is tightly attached to the outer wall of the optical fiber detector body, thereby loosening the brake plate. Under the action of the first spring, the rectangular locking post is engaged with the rectangular locking groove, thereby achieving the purpose of fixing the position of the L-shaped rotating plate. Thus, under the action of the connecting plate, the optical fiber detector body is surrounded and protected.

[0016] (2) By holding the protective part, the retaining ring passes through the conical block and gradually slides downward, thereby squeezing the trapezoidal retaining block and causing it to slide back along the trajectory of the cross-shaped sliding mouth. When the retaining ring completely passes through the connecting block, the trapezoidal retaining block slides back under the action of the spring three, thereby achieving the purpose of blocking and limiting the trapezoidal retaining block and retaining ring, thereby achieving the purpose of locking and fixing the protective part with the fiber optic detector body, thus facilitating the transportation of the fiber optic detector body and the fiber optic head body. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a front view of the present utility model;

[0019] Figure 3 This is a view of the protected part of this utility model;

[0020] Figure 4 This is a first partial view of the protected part of this utility model;

[0021] Figure 5 This is a second partial view of the protected part of this utility model;

[0022] Figure 6 This is a detailed view of the engaging part of this utility model.

[0023] In the diagram: 1. Fiber optic detector body; 2. Cable; 3. Protective parts; 4. Locking parts.

[0024] 311 Fiber optic detector body, 312 Fixing base, 313 Rectangular locking post, 314 Braking plate, 315 Spring 1, 316 L-shaped rotating plate, 317 Connecting plate, 318 Snap ring, 319 Handle, 320 Limiting plate, 321 Arc plate, 322 Slide, 323 Transmission rod, 324 Limiting block, 325 Spring 2;

[0025] 411 Connecting column, 412 Connecting block, 413 Fixing block, 414 Trapezoidal locking block, 415 Spring 3, 416 Conical block. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Example 1:

[0029] A preferred embodiment of the fiber optic detection head protection device provided by this utility model is, for example... Figure 1-6 As shown: A protective device for a fiber optic detector head includes: a fiber optic detector body 1; a cable 2 installed on one side of the fiber optic detector body 1; a protective portion 3 disposed at one end of the cable 2; and a locking portion 4 fixedly connected to the top of the fiber optic detector body 1; wherein the protective portion 3 includes: a fiber optic detector head body 311 installed at one end of the cable 2; and a fixing seat 312 fixedly connected to one side of the fiber optic detector head body 311, with the fixing seats 312 symmetrically arranged.

[0030] One end of the fixed base 312 is provided with a sliding groove 1, which is symmetrically arranged. The outer wall of the fixed base 312 is provided with a sliding groove 2, which is symmetrically arranged and connected to the sliding groove 1. One end of the fixed base 312 is provided with an annular groove, which is symmetrically arranged. A limit plate 320 is fixedly connected to one side of the fiber optic detector body 311.

[0031] A rectangular locking post 313 is slidably connected inside the slide groove 1. A brake plate 314 is fixedly connected to one side of the rectangular locking post 313. The brake plate 314 is slidably connected inside the slide groove 2. A spring 315 is provided between the rectangular locking post 313 and the slide groove 1. One end of the spring 315 is fixedly connected to one end of the rectangular locking post 313, and the other end of the spring 315 is fixedly connected to the inner wall of the slide groove 1.

[0032] An L-shaped rotating plate 316 is movably connected to the outer wall of the fixed base 312. A rectangular slot is provided on the inner wall of the L-shaped rotating plate 316. The rectangular slot is engaged with the rectangular locking post 313. A sliding groove three is provided on the inner wall of the L-shaped rotating plate 316. The sliding groove three is equidistantly arranged around the circumference. A sliding groove four is provided inside the L-shaped rotating plate 316. The sliding groove four is connected to the sliding groove three.

[0033] A connecting plate 317 is fixedly connected to one side of the L-shaped rotating plate 316. The connecting plates 317 are symmetrically arranged. A handle 319 is fixedly connected to one side of the L-shaped rotating plate 316. A retaining ring 318 is fixedly connected to one side of the connecting plate 317. The L-shaped rotating plate 316 is compatible with the limiting plate 320.

[0034] The inner side of the slide groove three is slidably connected to an arc plate 321, which is adapted to the annular groove. One end of the arc plate 321 is fixedly connected to a slide plate 322, which is slidably connected inside the slide groove four. One side of the slide plate 322 is fixedly connected to a transmission rod 323, one end of which extends outward through the L-shaped rotating plate 316 and the connecting plate 317. One end of the transmission rod 323 is fixedly connected to a limit block 324. A spring 325 is fixedly connected between the slide plate 322 and the slide groove four.

[0035] Furthermore, in this embodiment, by holding the limiting block 324, the sliding plate 322 drives the arc plate 321 to slide back into the interior of the sliding groove under the transmission rod 323. By holding the brake plate 314, the rectangular locking post 313 is driven to retract inward. Then, the L-shaped rotating plate 316 is installed on the outer wall of the fiber optic detector body 311, thereby loosening the limiting block 324. Under the action of the second spring 325, the arc plate 321 is connected to the annular groove, thereby achieving the purpose of controlling the rotation connection between the L-shaped rotating plate 316 and the fiber optic detector body 311. The L-shaped rotating plate 316 is tightly attached to the outer wall of the fiber optic detector body 311, thereby loosening the brake plate 314. Under the action of the first spring 315, the rectangular locking post 313 is engaged with the rectangular locking groove, thereby achieving the purpose of fixing the position of the L-shaped rotating plate 316. Thus, under the action of the connecting plate 317, the fiber optic detector body 311 is surrounded and protected.

[0036] Example 2:

[0037] Based on Embodiment 1, a preferred embodiment of the fiber optic detection head protection device provided by this utility model is as follows: Figure 1-6 As shown: the engaging part 4 includes: a connecting post 411, which is fixedly connected to the top of the fiber optic detector body 1, and the connecting posts 411 are symmetrically arranged; and a connecting block 412, which is fixedly connected to the top of the connecting post 411.

[0038] The connecting block 412 has a cross-shaped sliding opening inside, a fixing block 413 is fixedly connected inside the cross-shaped sliding opening, a trapezoidal locking block 414 is slidably connected inside the cross-shaped sliding opening, and a conical block 416 is fixedly connected to the top of the connecting block 412. The connecting post 411, the connecting block 412 and the conical block 416 are all adapted to the retaining ring 318.

[0039] A spring 415 is provided between the trapezoidal locking block 414 and the cross slide. One end of the spring 415 is fixedly connected to one end of the trapezoidal locking block 414, and the other end of the spring 415 is fixedly connected to the inner wall of one end of the cross slide. The trapezoidal locking block 414 is engaged with the retaining ring 318.

[0040] Furthermore, in this embodiment, by holding the protective part 3, the retaining ring 318 passes through the conical block 416 and gradually slides downward, thereby squeezing the trapezoidal retaining block 414, causing the trapezoidal retaining block 414 to slide back along the trajectory of the cross-shaped sliding mouth. When the retaining ring 318 completely passes through the connecting block 412, the trapezoidal retaining block 414 is controlled to slide and reset under the action of the spring 415, thereby achieving the purpose of blocking and limiting the trapezoidal retaining block 414 and the retaining ring 318, thereby achieving the purpose of engaging and fixing the protective part 3 with the fiber optic detector body 1, thus facilitating the transportation of the fiber optic detector body 1 and the fiber optic head body 311.

[0041] In use, first, hold the limiting block 324, so that under the transmission of the transmission rod 323, the slide plate 322 drives the arc plate 321 to slide back into the interior of the slide groove. Hold the brake plate 314, so that the rectangular locking post 313 retracts inward. Then, install the L-shaped rotating plate 316 on the outer wall of the fiber optic detector body 311, thereby loosening the limiting block 324. Under the action of the second spring 325, the arc plate 321 connects with the annular groove, thereby achieving the purpose of controlling the rotational connection between the L-shaped rotating plate 316 and the fiber optic detector body 311. Make the L-shaped rotating plate 316 tightly attached to the outer wall of the fiber optic detector body 311, thereby loosening the brake plate 314. Under the action of the first spring 315, the rectangular locking post 313 engages with the rectangular locking groove. The purpose of fixing the L-shaped rotating plate 316 is to surround and protect the fiber optic detector body 311 under the action of the connecting plate 317. Next, by holding the protective part 3, the retaining ring 318 is inserted through the conical block 416 and gradually slid downwards, thereby squeezing the trapezoidal retaining block 414 and causing the trapezoidal retaining block 414 to slide back along the trajectory of the cross-shaped sliding mouth. After the retaining ring 318 is completely inserted through the connecting block 412, the trapezoidal retaining block 414 is controlled to slide and reset under the action of the spring 315, thereby achieving the purpose of blocking and limiting the trapezoidal retaining block 414 and the retaining ring 318, thereby achieving the purpose of engaging and fixing the protective part 3 with the fiber optic detector body 1, thus facilitating the transportation of the fiber optic detector body 1 and the fiber optic detector body 311.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A protection device for a detection head used in fiber optic testing, characterized in that, Includes: fiber optic detector body (1); Cable (2) is installed on one side of the fiber optic detector body (1); A protective part (3) is installed at one end of the cable (2); The engaging part (4) is fixedly connected to the top of the fiber optic detector body (1); The protected part (3) includes: The fiber optic detector body (311) is installed at one end of the cable (2); A fixing base (312) is fixedly connected to one side of the fiber optic detector body (311), and the fixing base (312) is symmetrically arranged.

2. The fiber optic testing head protection device according to claim 1, characterized in that: One end of the fixed base (312) is provided with a sliding groove, which is symmetrically arranged. The outer wall of the fixed base (312) is provided with a sliding groove, which is symmetrically arranged and connected to the sliding groove. One end of the fixed base (312) is provided with an annular groove, which is symmetrically arranged. A limiting plate (320) is fixedly connected to one side of the optical fiber detector body (311).

3. The fiber optic testing head protection device according to claim 2, characterized in that: A rectangular locking post (313) is slidably connected inside the first slide groove. A brake plate (314) is fixedly connected to one side of the rectangular locking post (313). The brake plate (314) is slidably connected inside the second slide groove. A spring (315) is provided between the rectangular locking post (313) and the first slide groove. One end of the spring (315) is fixedly connected to one end of the rectangular locking post (313), and the other end of the spring (315) is fixedly connected to the inner wall of the first slide groove.

4. The fiber optic testing head protection device according to claim 1, characterized in that: The outer wall of the fixed base (312) is movably connected to an L-shaped rotating plate (316). The inner wall of the L-shaped rotating plate (316) is provided with a rectangular slot, which is engaged with a rectangular locking post (313). The inner wall of the L-shaped rotating plate (316) is provided with a sliding groove three, which is equidistant from each other around the circumference. The interior of the L-shaped rotating plate (316) is provided with a sliding groove four, which is connected to the sliding groove three.

5. The fiber optic testing head protection device according to claim 4, characterized in that: A connecting plate (317) is fixedly connected to one side of the L-shaped rotating plate (316). The connecting plates (317) are symmetrically arranged. A handle (319) is fixedly connected to one side of the L-shaped rotating plate (316). A retaining ring (318) is fixedly connected to one side of the connecting plate (317). The L-shaped rotating plate (316) is adapted to the limiting plate (320).

6. The fiber optic testing head protection device according to claim 4, characterized in that: An arc-shaped plate (321) is slidably connected inside the slide groove three. The arc-shaped plate (321) is adapted to the annular groove. A slide plate (322) is fixedly connected to one end of the arc-shaped plate (321). The slide plate (322) is slidably connected inside the slide groove four. A transmission rod (323) is fixedly connected to one side of the slide plate (322). One end of the transmission rod (323) extends outward through the L-shaped rotating plate (316) and the connecting plate (317). A limit block (324) is fixedly connected to one end of the transmission rod (323). A spring (325) is fixedly connected between the slide plate (322) and the slide groove four.

7. The fiber optic testing head protection device according to claim 1, characterized in that: The engaging portion (4) includes: A connecting post (411) is fixedly connected to the top of the fiber optic detector body (1), and the connecting posts (411) are symmetrically arranged. The connecting block (412) is fixedly connected to the top of the connecting column (411).

8. The fiber optic testing head protection device according to claim 7, characterized in that: The connecting block (412) has a cross-shaped sliding opening inside, and a fixing block (413) is fixedly connected inside the cross-shaped sliding opening. A trapezoidal locking block (414) is slidably connected inside the cross-shaped sliding opening. A conical block (416) is fixedly connected to the top of the connecting block (412). The connecting column (411), the connecting block (412), and the conical block (416) are all adapted to the retaining ring (318).

9. A detection head protection device for optical fiber detection according to claim 8, characterized in that: A spring three (415) is provided between the trapezoidal locking block (414) and the cross slide. One end of the spring three (415) is fixedly connected to one end of the trapezoidal locking block (414), and the other end of the spring three (415) is fixedly connected to the inner wall of one end of the cross slide. The trapezoidal locking block (414) is engaged with the retaining ring (318).

Images