Optical fiber ferrule suitable for detecting multiple cold light sources

Abstract

The utility model relates to light source detection technical field, and disclose a kind of optical fiber sleeve pipe suitable for multiple cold light source detection, including the sleeve pipe body of standard single optical fiber end portion, and the sleeve pipe body one end is equipped with driving element, and the other end outer wall of sleeve pipe body has the multiple outer expansion pieces of circumferential uniform distribution, and outer expansion piece has the movable end connected with driving element, and multiple outer expansion pieces are synchronously moved radially by driving element driving, to adjust overall diameter to adapt multiple diameter light outlet hole. The utility model is through the synergic effect of driving element and outer expansion piece, realize diameter flexible adjustment: driving element drives multiple outer expansion pieces synchronously moves radially, and small diameter light outlet hole can be adapted under non-expansion state, and after expansion, maximum diameter is greatly improved compared with initial state, can cover the light outlet hole specification of mainstream cold light source equipment, and single sleeve pipe can replace multiple conventional custom sleeve pipe, without waiting for customization before detection, to improve test efficiency, reduce custom cost.

Description

Technical Field

[0001] This utility model relates to the field of light source detection technology, specifically to an optical fiber sleeve adapted to the detection of various cold light sources. Background Technology

[0002] In the process of testing the luminous flux and color temperature of endoscopic light sources, accurate testing is crucial to ensuring the performance of the endoscope's light source. With the development of medical technology, the performance requirements for endoscopic light sources are becoming increasingly stringent. Therefore, improving testing efficiency and accuracy has become an important research direction in this field.

[0003] Currently, when using an integrating sphere to test data such as the luminous flux of an endoscope light source, a standard single optical fiber is required to guide the light source into the integrating sphere. This standard single optical fiber needs to be connected to the exit aperture of different light sources under test. Due to the inconsistent specifications of the exit apertures from different manufacturers, there are cases where the diameter of the exit aperture is larger than the diameter of the standard single optical fiber. If the standard single optical fiber is directly connected in this case, it will cause the standard single optical fiber to be unstable, which will lead to unstable luminous flux and directly affect the accuracy of the test results. In order to conduct accurate tests, different optical fiber sleeves need to be customized according to different samples under test, which significantly extends the testing cycle and increases the customization cost.

[0004] To address the aforementioned issues, this application proposes an optical fiber sleeve that is compatible with various cold light source detection methods. Utility Model Content

[0005] To address the technical problems existing in the background art, this utility model proposes an optical fiber sleeve that is compatible with various cold light source detection methods.

[0006] This utility model proposes an optical fiber sleeve adapted to the detection of various cold light sources, including a sleeve body fitted onto the end of a standard single optical fiber. One end of the sleeve body is equipped with a driving component, and the outer wall of the other end of the sleeve body has multiple circumferentially distributed expansion components. Each expansion component has a movable end connected to the driving component. The driving component drives the multiple expansion components to move synchronously radially, thereby adjusting the overall diameter to adapt to multiple diameter light output holes.

[0007] As a further optimization of this utility model, the driving component includes a driving tube, and a driving disk is installed at one end of the driving tube near the sleeve body. The driving disk has multiple transmission grooves that are axially penetrating and circumferentially distributed, and the multiple transmission grooves correspond one-to-one with the movable ends of multiple expansion components.

[0008] As a further optimization of this utility model, a third optical fiber hole is opened in the middle of the drive disk for optical fiber to pass through, and multiple transmission grooves are symmetrically distributed in a ring around the third optical fiber hole.

[0009] As a further optimization of this utility model, the transmission groove is arc-shaped, and the two ends of the transmission groove are respectively located near the outer edge of the third optical fiber hole and the drive disk.

[0010] As a further optimized solution of this utility model, the outer expansion member includes an outer expansion plate disposed on the outer wall of the casing body. A guide post is installed on the side of the outer expansion plate near the casing body. The free end of the guide post is radially slidably assembled with the casing body. A transmission post, which serves as the movable end, is installed on the side of the guide post near the driving member. The free end of the transmission post is slidably inserted into the corresponding transmission groove. The transmission post is driven by the rotation of the driving disk to drive the guide post and the outer expansion plate to move radially.

[0011] As a further optimization of this utility model, the free end of the transmission column passes through the transmission groove and is equipped with a detachable anti-slip cap.

[0012] As a further optimization of this utility model, the outer expansion plate is an arc-shaped plate, and the concave surface is in contact with the outer wall of the sleeve body. In the non-expanded state, multiple outer expansion plates form a complete ring.

[0013] As a further optimization of this utility model, a limiting hole communicating with its inner cavity is provided on the outer wall of the drive tube. A limiting pin is provided in the limiting hole. By inserting the limiting pin into the limiting hole, the limiting pin contacts the surface of the optical fiber, and the frictional force is used to strengthen the connection between the drive tube and the optical fiber.

[0014] As a further optimized solution of this utility model, the sleeve body includes an end cap and a limiting member. The limiting member is disposed between the end cap and the driving member. One side of the limiting member is snapped into the end cap, and the other side of the limiting member is in contact with the driving disc and the two can rotate relative to each other.

[0015] The limiting member has a cylindrical groove extending radially inward. There are multiple cylindrical grooves that are evenly distributed circumferentially. The movable ends of the multiple expanding members correspond one-to-one with the multiple cylindrical grooves and are radially slidably assembled.

[0016] As a further optimization of this utility model, the limiting component includes multiple limiting blocks arranged in a ring, thereby forming a second optical fiber hole in the central region.

[0017] Two adjacent limiting blocks are spaced apart to form a cylindrical groove. A positioning post is installed on the side of the limiting block near the end cover, located at the opening of the cylindrical groove. Two adjacent positioning posts are symmetrically distributed to form a limiting clip and are snapped into the end cover for assembly.

[0018] The fiber optic sleeve adapted to various cold light source detection methods proposed in this invention has the following beneficial effects:

[0019] (i) Through the synergistic effect of the driving component and the expansion component, the diameter can be flexibly adjusted: the driving component drives multiple expansion components to move radially synchronously. In the non-expansion state, it can adapt to small diameter light-emitting holes. After expansion, the maximum diameter is significantly increased compared with the initial state, which can cover the light-emitting hole specifications of mainstream cold light source equipment. A single sleeve can replace a variety of traditional customized sleeves. There is no need to wait for customization before testing, thereby improving testing efficiency and reducing customization costs.

[0020] (ii) The guide post of the expansion component slides radially along the sleeve body and cooperates with the arc-shaped transmission groove of the drive disk to make multiple expansion plates expand synchronously, ensuring uniform contact with the inner wall of the light outlet hole. This design solves the problem of light flux fluctuation caused by the unstable fixation of traditional single optical fiber, which helps to reduce test data deviation and thus meet the high precision requirements of endoscope light source detection.

[0021] (III) The sleeve body adopts a modular assembly of end caps, limiting parts and driving parts, with an integrated structure that is easy to operate by hand. The diameter can be expanded by rotating the driving tube at a certain angle. The position is locked with the limiting pin to prevent retraction during use. Compared with the disassembly and assembly process of traditional sleeves, it can significantly shorten the operation time of replacing the light source once, which is especially suitable for multi-batch testing scenarios.

[0022] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] Figure 1 This is a first-view schematic diagram of the assembly structure of this utility model.

[0024] Figure 2 This is a schematic diagram of the extended structure from a first-person perspective of the present invention;

[0025] Figure 3 This is a first-person perspective exploded structural diagram of the present invention;

[0026] Figure 4 This is a schematic diagram of the assembly structure from a second perspective of the present invention.

[0027] Figure 5 This is a schematic diagram of the extended structure from a second perspective of the present invention;

[0028] Figure 6 This is a second-view exploded structural diagram of the present invention;

[0029] Figure 7 This is a schematic diagram of the end cap structure of this utility model;

[0030] Figure 8 This is a schematic diagram of the limiting component structure of this utility model;

[0031] Figure 9 This is a schematic diagram of the external expansion component structure of this utility model;

[0032] Figure 10 This is a schematic diagram of the drive component structure of this utility model;

[0033] Figure 11 This is a schematic diagram of the assembly of the optical fiber sleeve and the standard single optical fiber provided by this utility model.

[0034] Figure descriptions: 1. End cap; 11. First fiber optic hole; 12. Positioning groove; 2. Driving component; 21. Driving disk; 22. Driving tube; 23. Third fiber optic hole; 24. Transmission groove; 25. Limiting hole; 3. Outer expansion component; 31. Outer expansion plate; 32. Guide post; 33. Transmission post; 4. Limiting component; 41. Limiting block; 42. Positioning post; 43. Second fiber optic hole; 44. Cylindrical groove. Detailed Implementation

[0035] The embodiments of this utility model are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0036] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0037] Please see Figures 1-11 A fiber optic sleeve adapted to the detection of various cold light sources includes a sleeve body fitted on the end of a standard single fiber. One end of the sleeve body is equipped with a driving component 2, and the outer wall of the other end of the sleeve body has multiple circumferentially distributed expansion components 3. The driving component 2 drives the multiple expansion components 3 to move radially synchronously, thereby realizing the radial expansion of the multiple expansion components 3 to adapt to the light source under test with different light output aperture diameters.

[0038] The sleeve body fits tightly with the standard single optical fiber. The outer expansion component 3 forms a complete ring in the initial state, and the ring diameter is the same as that of the sleeve body. The overall diameter can be expanded by adjusting the drive component 2 to meet the interface requirements of cold light source detection equipment from different manufacturers. There is no need to customize multiple sleeves, which helps to improve detection efficiency and reduce costs.

[0039] Example 1

[0040] like Figure 9 As shown, the outer expansion member 3 includes an outer expansion plate 31 disposed on the outer wall of the sleeve body. A guide post 32 is installed on the side of the outer expansion plate 31 near the sleeve body. The free end of the guide post 32 is slidably inserted into the sleeve body and extends radially. A transmission post 33 is installed on the side of the guide post 32 near the driving member 2. The free end of the transmission post 33 is connected to the movable part of the driving member 2. The driving member 2 drives the transmission post 33 to move radially.

[0041] The outer expansion plate 31 is arc-shaped, and the curvature matches the sleeve body. The guide post 32 ensures that the outer expansion plate moves only radially. The transmission post 33 converts the rotational motion of the drive component 2 into radial force, so as to realize the synchronous expansion or contraction of the outer expansion plate.

[0042] Furthermore, such as Figure 10 As shown, the driving component 2 includes a driving tube 22 fitted outside the optical fiber. A driving disk 21 is installed at one end of the driving tube 22 near the sleeve body. A third optical fiber hole 23 for the optical fiber to pass through is opened in the middle of the driving disk 21. A plurality of transmission grooves 24 are axially through the driving disk 21. The plurality of transmission grooves 24 correspond one-to-one with the transmission columns 33 on the plurality of external expansion components 3. The plurality of transmission grooves 24 are evenly distributed around the periphery of the third optical fiber hole 23. The transmission grooves 24 are arc-shaped and their two ends are respectively located near the third optical fiber hole 23 and the outer edge of the driving disk 21.

[0043] The free end of the transmission column 33 passes through the transmission groove 24 and extends to the periphery of the drive tube 22 and is equipped with a detachable anti-detachment cap, so that the drive disc 21 and the drive tube 22 can be connected to the sleeve body. When the drive tube 22 rotates, the direction of the force can be changed through the arc-shaped transmission groove 24, so that the transmission column 33 can slide radially, thereby driving the guide column 32 to slide radially within the sleeve body, realizing the expansion and contraction of the outer expansion plate 31, so as to adapt to the light outlet holes of multiple diameters.

[0044] The outer wall of the drive tube 22 is provided with anti-slip texture to facilitate manual rotation. The arc-shaped transmission groove 24 guides the transmission column 33 to slide radially. When the drive disc 21 rotates 90°, the outer expansion plate 31 can expand to the maximum diameter. The anti-detachment cap prevents the transmission column from detaching. The threaded connection is used to facilitate disassembly and maintenance.

[0045] Furthermore, the outer expansion plate 31 is an arc-shaped plate, and its concave surface fits against the outer wall of the sleeve body. In the non-expanded state, multiple outer expansion plates 31 form a complete ring, thereby improving the assembly integration of the sleeve.

[0046] In the non-expanded state, the ring formed by the outer expansion plate 31 fits seamlessly with the outer wall of the sleeve body with a gap of ≤0.1mm, reducing insertion resistance and facilitating quick installation. The arc design ensures uniform force distribution during expansion, avoiding deformation caused by excessive local stress.

[0047] Furthermore, the anti-detachment cap is detachably connected to the free end of the transmission column 33, and its outer diameter is larger than the width of the transmission groove 24. It can be connected by adhesive, snap-fit, magnetic attraction or threaded connection, etc., preferably by threaded connection. The anti-detachment cap is a nut, and the free end of the transmission column 33 has external thread and is threadedly connected to the anti-detachment cap.

[0048] The threaded connection ensures that the anti-slip cap is securely fastened, and the tools for disassembly and assembly are ordinary screwdrivers or wrenches, making maintenance convenient; the outer diameter of the anti-slip cap is larger than the width of the transmission groove, forming a mechanical limit to prevent the transmission column 33 from moving axially during the drive process.

[0049] Furthermore, a limiting hole 25 communicating with its inner cavity is provided on the outer wall of the drive tube 22. A limiting pin is provided in the limiting hole 25. The limiting pin is inserted into the limiting hole 25 so that the limiting pin contacts the surface of the optical fiber. The friction force is used to strengthen the connection between the drive tube 22 and the optical fiber, and to prevent relative rotation between the drive tube 22 and the optical fiber after assembly. This prevents the drive tube 22 and the drive disk 21 from rotating, thereby preventing the guide post 32 from driving the expansion plate 31 to retract inward, and further ensuring the expansion stability of the multiple expansion plates 31.

[0050] The limiting hole 25 is set radially along the drive tube 22. After the limiting pin is inserted, it is slightly squeezed against the surface of the optical fiber to generate sufficient friction to prevent the drive tube from rotating. This design does not require an additional locking structure and does not damage the optical fiber.

[0051] Furthermore, the outer wall of the drive tube 22 has anti-slip texture to increase hand friction, making it easier to operate with gloves or rotate the drive tube in a humid environment, thus avoiding adjustment failure caused by slippage.

[0052] Based on the above embodiment one, embodiment two is proposed.

[0053] like Figure 3 , Figure 6 and Figure 8As shown, the sleeve body includes an end cap 1 and a limiting member 4. The limiting member 4 is disposed between the end cap 1 and the driving member 2. One side of the limiting member 4 is snapped into the end cap 1, and the other side of the limiting member 4 is in contact with the driving disk 21 and the two can rotate relative to each other. A second fiber hole 43 for the fiber to pass through is opened in the middle of the limiting member 4. A cylindrical groove 44 extending radially into the limiting member 4 is also opened on the limiting member 4. There are multiple cylindrical grooves 44, which are evenly distributed circumferentially outside the second fiber hole 43 and are interconnected. The multiple cylindrical grooves 44 correspond one-to-one with multiple outward expansion members 3.

[0054] Each guide post 32 on the outer expansion member 3 is radially slidably inserted into the corresponding cylindrical groove 44 and is adapted to each other. The end of the transmission post 33 away from the guide post 32 passes through the transmission groove 24 axially and is threaded to prevent the cap from being dislodged. By rotating the drive disk 21, the transmission post 33 can be driven to drive the guide post 32 to slide radially along the cylindrical groove 44 so as to adjust the outer expansion diameter of the outer expansion member 3 according to the light outlet holes with different inner diameters.

[0055] The end cap 1 protects the front end of the sleeve and is snapped together with the limiting member 4 to ensure the stability of the overall structure. The cylindrical groove 44 and the guide post 32 are precisely matched to restrict their movement direction and prevent the outer expansion plate 31 from tilting. The contact surface between the limiting member 4 and the drive disk 21 is polished to reduce relative rotational resistance.

[0056] Based on the above-described Embodiment 2, Embodiment 3 is proposed.

[0057] like Figure 8 As shown, the limiting component 4 includes multiple limiting blocks 41 arranged in a ring, thereby forming a second optical fiber hole 43 in the central region. Two adjacent limiting blocks 41 are spaced apart to form a cylindrical groove 44 that is adapted to the guide post 32 and arranged radially. A positioning post 42 located at the opening of the cylindrical groove 44 is installed on the side of the limiting block 41 near the end cover 1. Two positioning posts 42 at the opening of each cylindrical groove 44 are symmetrically distributed to form a limiting clip and engage with the end cover 1.

[0058] The limiting block 41 is made of ABS plastic injection molding, which is high in strength and lightweight. The positioning post 42 cooperates with the positioning groove of the end cover 1 to realize the quick positioning of the limiting part and avoid uneven expansion caused by installation deviation.

[0059] Based on the above embodiment three, embodiment four is proposed.

[0060] like Figure 7 As shown, the end cap 1 has a first fiber hole 11 for the fiber to pass through in the middle. The end cap 1 has a circumferentially distributed and radially extended positioning groove 12 on the side near the limiting member 4. The number of positioning grooves 12 is the same as the number of limiting cards and corresponds one to one. When the limiting block 41 is attached to the end cap 1, multiple limiting cards are engaged with the corresponding positioning grooves 12 respectively, thereby completing the quick assembly of the end cap 1 and the limiting member 4.

[0061] Furthermore, the positioning groove 12 and the limiting card can be locked together by plastic deformation, magnetic attraction or fasteners;

[0062] It should be noted that the inner diameters of the first fiber optic hole 11, the second fiber optic hole 43, the third fiber optic hole 23, and the drive tube 22 are the same and match the outer diameter of a standard single fiber.

[0063] The first fiber optic hole 11 ensures that the fiber optic cable passes through smoothly without any movement. The locking method between the positioning slot 12 and the limit card is preferably an interference fit, which can be completed without tools and is suitable for quick on-site replacement. All fiber optic holes have the same diameter to avoid signal attenuation caused by fiber bending.

[0064] 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 fiber ferrule adapted for multiple cold light source detection, comprising a ferrule body that fits over a standard single fiber end, characterized in that, One end of the sleeve body is equipped with a driving component (2), and the outer wall of the other end of the sleeve body has multiple circumferentially distributed expansion components (3). The expansion components (3) have movable ends connected to the driving component (2). The multiple expansion components (3) are driven to move radially synchronously by the driving component (2), thereby adjusting the overall diameter to adapt to multiple diameter light-emitting holes.

2. The optical fiber ferrule of claim 1, wherein, The driving component (2) includes a driving tube (22). A driving disc (21) is installed at one end of the driving tube (22) near the sleeve body. Multiple transmission grooves (24) are provided on the driving disc (21) that are axially penetrating and circumferentially distributed. The multiple transmission grooves (24) correspond one-to-one with the movable ends of multiple expansion components (3).

3. The optical fiber ferrule of claim 2, wherein, The drive disk (21) has a third fiber optic hole (23) in the middle for the fiber optic cable to pass through, and multiple transmission slots (24) are symmetrically distributed in a ring around the third fiber optic hole (23).

4. The optical fiber ferrule of claim 3, wherein, The transmission groove (24) is arc-shaped, and the two ends of the transmission groove (24) are respectively located near the outer edge of the third fiber optic hole (23) and the drive disk (21).

5. The fiber optic sleeve adapted for detection by multiple cold light sources according to claim 2, characterized in that, The expansion member (3) includes an expansion plate (31) disposed on the outer wall of the casing body. A guide post (32) is installed on the side of the expansion plate (31) near the casing body. The free end of the guide post (32) is radially slidably assembled with the casing body. A transmission post (33) as the movable end is installed on the side of the guide post (32) near the drive member (2). The free end of the transmission post (33) is slidably inserted into the corresponding transmission groove (24). The transmission post (33) is driven by the rotation of the drive disk (21) to drive the guide post (32) and the expansion plate (31) to move radially.

6. The fiber optic sleeve adapted for detection by multiple cold light sources according to claim 5, characterized in that, The free end of the transmission column (33) passes through the transmission groove (24) and is fitted with a detachable anti-slip cap.

7. The fiber optic sleeve adapted for detection by multiple cold light sources according to claim 5, characterized in that, The outer expansion plate (31) is an arc-shaped plate, and its concave surface is in contact with the outer wall of the sleeve body. In the non-expanded state, multiple outer expansion plates (31) form a complete ring.

8. The fiber optic sleeve adapted for detection by multiple cold light sources according to claim 2, characterized in that, A limiting hole (25) communicating with its inner cavity is provided on the outer wall of the drive tube (22). A limiting pin is provided in the limiting hole (25). The limiting pin is inserted into the limiting hole (25) so that the limiting pin contacts the surface of the optical fiber and the friction force is used to strengthen the connection between the drive tube (22) and the optical fiber.

9. The fiber optic sleeve adapted for detection by multiple cold light sources according to claim 2, characterized in that, The sleeve body includes an end cap (1) and a limiting member (4). The limiting member (4) is located between the end cap (1) and the driving member (2). One side of the limiting member (4) is snapped into the end cap (1), and the other side of the limiting member (4) is in contact with the driving disk (21) and the two can rotate relative to each other. The limiting member (4) has a cylindrical groove (44) extending radially inward. There are multiple cylindrical grooves (44) and they are evenly distributed around the circumference. The movable ends of multiple expansion members (3) correspond one-to-one with the multiple cylindrical grooves (44) and are radially slidably assembled.

10. The fiber optic sleeve adapted for detection by multiple cold light sources according to claim 9, characterized in that, The limiting member (4) includes multiple limiting blocks (41), which are arranged in a ring to form a second fiber optic hole (43) in the central region. Two adjacent limiting blocks (41) are spaced apart to form a cylindrical groove (44). A positioning post (42) located at the opening of the cylindrical groove (44) is installed on the side of the limiting block (41) near the end cover (1). Two adjacent positioning posts (42) are symmetrically distributed to form a limiting card and are snapped together with the end cover (1).

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