Optical fiber assembly for detector

Abstract

The utility model belongs to the technical field of optical fiber assemblies, and particularly relates to an optical fiber assembly for a detector, which comprises a detector and an optical fiber. The winding wheel is located in the fixed disc below the detector, the detector is provided with a volute spiral spring through a fixed seat below the detector, and the volute spiral spring has a first state and a second state; when the volute spiral spring is in the first state, the optical fiber is pulled outwards to drive the winding wheel to rotate, so that the internal structure of the volute spiral spring is loose; when the volute spiral spring is in a second state, the winding wheel is driven by elasticity to rotate so as to wind the optical fiber; a shell is arranged on the outer side of the fixing disc and covers the winding wheel and the wound optical fiber, a guide pipe is arranged in front of the fixing base, and the part, close to the detector, of the optical fiber is guided into the winding wheel to form protection. The wire winding device can automatically wind and unwind wires before and after use, the wires are stored in order and prevented from being scattered, meanwhile, the wires are protected inside and prevented from being in contact with impurities such as external dust and oil stains, and it is guaranteed that the surfaces of the wires are free of scattering points.

Description

Technical Field

[0001] This utility model belongs to the field of optical fiber component technology, and in particular relates to an optical fiber component for a detector. Background Technology

[0002] Optical fiber is a medium that transmits optical signals using the principle of total internal reflection. It is usually made of glass or plastic and can transmit optical signals with extremely low loss. Therefore, as a highly efficient optical signal transmission medium, optical fiber is widely used in a variety of testing instruments.

[0003] Currently, existing testing instruments have external optical fibers that are several meters long, making them inconvenient to carry and prone to causing confusion during use.

[0004] To address the aforementioned issues, this application proposes an optical fiber assembly for a detector. Utility Model Content

[0005] The purpose of this invention is to provide an optical fiber assembly for a detector, which solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a fiber optic assembly for a testing instrument, including a testing instrument and a fiber optic cable;

[0008] The winding reel is located inside the fixed plate below the detector. The detector is equipped with a spiral spring via a fixed base below it. The spiral spring has a first state and a second state.

[0009] In the first state, the external pull of the optical fiber drives the winding wheel to rotate, making the internal structure of the spiral spring loose.

[0010] In the second state, the spiral spring uses its elasticity to drive the winding wheel to rotate and wind up the optical fiber.

[0011] The outer side of the fixed plate is provided with a shell to cover the winding wheel and the wound optical fiber inside. The front of the fixed base is provided with a guide tube to guide the part of the optical fiber near the detector into the inside of the winding wheel to form protection.

[0012] Furthermore, a coaxial adapter plate is provided below the fixed plate, and a stepped rod is provided above the adapter plate.

[0013] Furthermore, the upper end of the stepped rod is threaded on the outer side and helically connected to the lower end of the winding wheel, and the lower end of the stepped rod is rotatably connected to the center hole of the fixed plate.

[0014] Furthermore, a coaxial convex ring is provided above the winding reel, which is rotatably mounted in the side groove below the fixed base.

[0015] Furthermore, the hole of the convex ring is aligned with the positioning hole that runs vertically through the center of the fixed base.

[0016] Furthermore, the annular space between the side groove and the convex ring is used to install a spiral spring.

[0017] Furthermore, both the fixed end and the movable end of the spiral spring are provided with connecting rods, which are respectively connected to the inner wall of the side groove and the outer wall of the convex ring.

[0018] Furthermore, the outer shell of the fixed plate is provided with a screw that is screwed to the rear of the fixed seat for fixation.

[0019] This utility model has the following beneficial effects:

[0020] This invention adds a winding wheel to the back of the detector and uses a spiral spring to drive it to rotate automatically to a predetermined angle. This allows the optical fiber to be wound around the winding wheel before and after use, making it convenient to carry and use, and ensuring neatness before and after use, preventing any mess.

[0021] This invention utilizes the protective structure formed by the outer shell of the fixing disk and the guide tube during the orderly storage of optical fibers to prevent the optical fibers from coming into contact with external objects during transport, thus preventing them from being contaminated with dust, oil stains, and other debris. This avoids additional losses and scattering points, ensuring the accuracy of the detection data.

[0022] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the external structure of the detector of this utility model;

[0025] Figure 2 This is a schematic diagram of the lower external structure of the detector of this utility model;

[0026] Figure 3 This is a schematic diagram of the internal structure of the optical fiber winding mechanism of this utility model;

[0027] Figure 4 This is a schematic diagram of the combined structure of the winding wheel and the fixing disc of this utility model;

[0028] Figure 5This is a partially enlarged structural diagram of part A of this utility model;

[0029] The attached diagram lists the components represented by each number as follows:

[0030] In the diagram: 1. Detector; 2. Optical fiber; 3. Guide tube; 4. Fixing plate; 5. Adapter plate; 6. Fixing base; 7. Rewinding wheel; 8. Convex ring; 9. Side groove; 10. Positioning hole; 11. Spiral spring; 12. Screw; 13. Connecting rod. Detailed Implementation

[0031] 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.

[0032] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0033] Please see Figure 1-5 As shown, this utility model is an optical fiber assembly for a detector, including a detector 1 and an optical fiber 2;

[0034] The winding wheel 7 is located inside the fixed plate 4 below the detector 1. The detector 1 is equipped with a spiral spring 11 via the fixed base 6 below. The spiral spring 11 has a first state and a second state.

[0035] The bottom of the detector 1 has four threaded holes, and the outer side of the outer shell of the fixed plate 4 has four support feet. When installing the fixed plate 4, firstly, the rear of the outer shell of the fixed plate 4 is screwed and fixed by a long screw. Then, the bolts are screwed into the threaded holes through the support feet. In this way, the fixed plate 4 and the fixed base 6 are installed on the bottom of the detector 1, so that it can be installed on various testing instruments without affecting the normal use of the testing instruments.

[0036] Preferably, when using the detector 1, pulling the optical fiber 2 externally causes the winding wheel 7 to rotate, loosening the internal structure of the spiral spring 11, resulting in the first state of the spiral spring 11, which is a loose internal structure. When the internal structure of the spiral spring 11 is loose, an elastic force is generated, which drives the winding wheel 7 to rotate and wind up the optical fiber 2 after the inspection operation, which is the second state. After winding, its internal structure returns to a compact spiral shape. With this arrangement, the elastic force can be used to automatically wind up the optical fiber 2 before and after use, achieving an automatic winding effect.

[0037] The outer side of the fixed plate 4 is provided with a shell that is fitted onto the outer side of the winding wheel 7. After the optical fiber 2 is wound up, the wound part is protected inside. The part of the optical fiber adjacent to the detector 1 is protected inside by the guide tube 3 in front of the fixed base 6. At the same time, the guide tube 3 guides the section of optical fiber 2 to the inside of the fixed base 6 and the winding wheel 7 to form protection, so as to prevent external dust, oil stains and other impurities from contacting the optical fiber 2, keeping its surface clean, and preventing the occurrence of scattering points and additional loss during the detection operation, thereby ensuring the accuracy of the detection data of the detector 1.

[0038] The fixed plate 4 has a hole structure running vertically through the center, and a connecting plate 5 coaxial with the hole is provided below it. The stepped rod 12 above it has a rod structure that is thicker at the bottom and thinner at the top.

[0039] Preferably, the thinner part of the stepped rod 12 has a threaded structure on the outside, which is screwed to the lower center hole of the winding wheel 7 during installation, while the thicker part is rotatably connected to the center hole of the fixed plate 4, thereby forming a rotation limit at the bottom of the winding wheel 7.

[0040] Furthermore, a protruding ring 8 is provided above the winding wheel 7 along the axis. When the fixed seat 6 is installed inside the fixed disk 4, the protruding ring 8 is located at the center of the side groove 9 below the fixed seat 6, thereby forming a rotation limit at the upper end of the winding wheel 7, so that the winding wheel 7 can rotate freely inside the fixed disk 4.

[0041] The convex ring 8 has a through hole structure inside, which is aligned with the positioning hole 10 through the center of the fixed base 6, and is used to pass through a section of the fiber optic 2 and the proximity detector 1.

[0042] The annular space between the side groove 9 and the convex ring 8 is used to install the spiral spring 11.

[0043] Preferably, the fixed end of the spiral spring 11 is adjacent to the inner wall of the side groove 9, and both the fixed end and the movable end are provided with connecting rods 13, which are respectively connected to the inner wall of the side groove 9 and the outer wall of the convex ring 8, thereby providing rotational power to the winding wheel 7 through the convex ring 8.

[0044] Understandably, this utility model can automatically rewind and unwind the wire before and after use, keeping it neatly stored to prevent it from becoming tangled, while protecting it from external dust, oil stains and other debris, ensuring that there are no scattering points on the surface of the wire.

[0045] The specific operation process of this embodiment is as follows: First, the optical fiber 2 is inserted into the inside of the guide tube 3, and it passes through the take-up wheel 7 and the groove of the optical fiber 2 from the inside out. Then, the fixing seat 6 is connected to the outer wall of the fixing plate 4 by the screw to form an assembly. Then, the lower part of the adapter plate 5 is rotatably connected to the fixing plate 4 by the screw connection of the stepped rod 12 and the take-up wheel 7. In this way, the take-up wheel 7 is rotatably installed inside the fixing plate 4, and its upper end is rotatably installed inside the side groove 9. Further, the spiral spring 11 drives the take-up wheel 7 to rotate through the connecting rod 13 to wind the outward optical fiber 2 to the outer area, thereby organizing it and preventing it from being scattered. At the same time, it can also avoid contact with dust, oil stains and other impurities from the outside. When in use, the optical fiber 2 can be directly pulled out.

[0046] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0047] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An optical fiber assembly for a detector, comprising a detector (1) and an optical fiber (2), characterized in that: a winding wheel (7) is located inside a fixed disc (4) below the detector (1), the detector (1) is installed with a volute spring (11) through a fixed seat (6) below, the volute spring (11) has a first state and a second state; when the volute spring (11) is in the first state, the outer pull of the optical fiber (2) drives the winding wheel (7) to rotate so that the internal structure of the volute spring (11) is loose; when the volute spring (11) is in the second state, the elastic drive of the winding wheel (7) rotates to wind the optical fiber (2); the outer side of the fixed disc (4) is provided with a shell to cover the winding wheel (7) and the wound optical fiber (2) inside, the front of the fixed seat (6) is provided with a guide tube (3) to guide the part of the optical fiber (2) adjacent to the detector (1) to the inside of the winding wheel (7) to form protection.

2. The optical fiber assembly for a detector of claim 1, wherein: The lower side of the fixed disc (4) is provided with a coaxial adapter disc (5), and the upper side of the adapter disc (5) is provided with a stepped rod (12).

3. The optical fiber assembly for a detector of claim 2, wherein: The outer side of the upper end of the stepped rod (12) is provided with a screw thread and is screw-connected with the lower end of the winding wheel (7), and the lower end of the stepped rod (12) is rotationally connected with the center hole of the fixed disc (4).

4. The optical fiber assembly for a detector of claim 1, wherein: The upper side of the winding wheel (7) is provided with a coaxial convex ring (8) which is rotationally installed below the side groove (9) of the fixed seat (6).

5. The optical fiber assembly for a detector of claim 4, wherein: The hole of the convex ring (8) is aligned with the positioning hole (10) which penetrates the center of the fixed seat (6) from top to bottom.

6. The optical fiber assembly for a detector of claim 4, wherein: The annular space between the side groove (9) and the convex ring (8) is used to install the volute spring (11).

7. The optical fiber assembly for a detector of claim 1, wherein: The fixed end and the movable end of the volute spring (11) are provided with a connecting rod (13) which is connected to the inner wall of the side groove (9) and the outer wall of the convex ring (8), respectively.

8. The optical fiber assembly for a detector of claim 1, wherein: The shell of the fixed disc (4) is provided with a screw rod which is screw-connected with the rear of the fixed seat (6).

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