Optical fiber assembly suitable for microplate reader

Abstract

The utility model belongs to the technical field of optical fiber assemblies, and particularly relates to an optical fiber assembly suitable for a microplate reader, which comprises a first optical fiber group and a second optical fiber group which need to be butted, and the first optical fiber group is sequentially provided with a first fiber core, a first sheath and a first joint from inside to outside; the second optical fiber group is sequentially provided with a second fiber core, a second sheath and a second connector from inside to outside, the first fiber core protrudes out of the front end of the first connector, and the exterior of the first connector is elastically connected with a floating sleeve matched with the protruding part of the first fiber core; it can be understood that the second fiber core is designed to be of an inward sinking structure, the first fiber core is designed to be of a protruding structure, the connecting face of the second fiber core and the first fiber core is arranged in the second connector to reduce the risk of light leakage, and the floating sleeve is additionally arranged outside the first fiber core to improve the protection performance; and meanwhile, the first magnetic blocks are inserted into the positioning grooves to prevent rotation and radial deviation, and the arc-shaped surface adsorption design of the first and second magnetic blocks is matched to increase the contact area, so that the suction force and the connection reliability are enhanced.

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 suitable for enzyme-linked immunosorbent assay (ELISA) readers. Background Technology

[0002] Fiber optic components are parts used in fiber optic communication systems to connect, distribute, or manage optical signals. They typically include the optical fiber itself, connectors, adapters (flanges), and protective kits. Connectors generally refer to end devices that can be plugged into boards.

[0003] This type of connector is further divided into two types. One is a mechanical snap-fit ​​connector, which has a reliable and stable structure, but cannot automatically align the cores and suffers greater wear during insertion and removal. The other is a magnetic self-adaptive connector, which has high durability and lifespan during insertion and removal and can automatically align the cores. However, during alignment, the fiber end is usually placed at the connector end, and then the two fibers are connected on the magnetic attraction plane. However, in actual use, light leakage is prone to occur on the magnetic attraction surface, which is not conducive to stable fiber transmission and is also prone to radial offset. At the same time, due to the lack of anti-rotation components, rotation can easily occur between the two connectors, affecting stable transmission.

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

[0005] The purpose of this invention is to provide an optical fiber assembly suitable for microplate readers, 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 an optical fiber assembly suitable for an ELISA reader, including a first optical fiber group and a second optical fiber group that need to be connected. The first optical fiber group is provided with a first fiber core, a first sheath and a first connector from the inside to the outside. The second optical fiber group is provided with a second fiber core, a second sheath and a second connector from the inside to the outside. The first fiber core protrudes from the front end of the first connector. A floating sleeve that mates with the protruding part of the first fiber core is elastically connected to the outside of the first connector. The second fiber core sinks into the inside of the second connector, and the front end of the second connector forms an insertion space for the protruding part of the first fiber core. A magnetic element that attracts each other radially is provided between the first optical fiber group and the second optical fiber group.

[0008] The magnetic element includes a first magnetic block and a second magnetic block, both of which are arc-shaped.

[0009] Furthermore, the floating sleeve includes a support sleeve formed on the inner side and slidingly engaged with the annular groove and a stop plate located at the front end of the support sleeve, and an outer protective sleeve that fits and slides outside the first joint is provided on the outside of the floating sleeve.

[0010] Furthermore, the first magnetic block is fixed at the front end of the first connector and is distributed circumferentially outside the first fiber core, and an arc-shaped hole is provided in the abutment for the first magnetic block to pass through.

[0011] Furthermore, a spring groove is provided on the front end face of the first connector, and a return spring is provided between the spring groove and the floating sleeve to abut against each other. The floating sleeve covers the outer side of the first fiber core protrusion through the return spring, and the front end of the first magnetic block also protrudes from the front end of the floating sleeve.

[0012] Furthermore, the front end of the second connector is provided with a positioning groove that engages with the first magnetic block, and the second magnetic block is fitted into the inner side of the inner ring of the positioning groove.

[0013] Furthermore, the first and second magnetic blocks are several groups distributed circumferentially, and the return spring is located between adjacent magnetic elements.

[0014] This utility model has the following beneficial effects:

[0015] This utility model sets the second fiber core as an inner recessed structure and the first fiber core as a protruding structure, so that the connection surface of the two is placed in the second connector, reducing the risk of light leakage. At the same time, a floating sleeve is set on the outside of the protruding first fiber core for protection, improving the protection effect and reliability.

[0016] This invention achieves anti-rotation by setting the first magnetic block to be inserted into the positioning groove, and at the same time prevents the two optical fibers from being radially offset. Furthermore, the first and second magnetic blocks are attracted by the arc-shaped surface, which effectively increases the contact area compared to the end face, ensuring attraction and reliability.

[0017] 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

[0018] 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.

[0019] Figure 1 This is a partial cross-sectional view of the two optical fiber groups connected in this utility model.

[0020] Figure 2 This is a schematic diagram of a partial cross-section of the structure when the first fiber optic group is not connected;

[0021] Figure 3This is a schematic diagram of the structure when the first fiber optic group is not connected.

[0022] Figure 4 This is a schematic diagram of the connection state of the first optical fiber group;

[0023] Figure 5 This is a schematic diagram of the structure of the first fiber optic group being split up;

[0024] Figure 6 This is a schematic diagram of a partial cross-section of the second fiber optic group;

[0025] Figure 7 This is a schematic diagram of the structure of the second fiber optic group;

[0026] The attached diagram lists the components represented by each number as follows:

[0027] In the diagram: 1. First fiber optic group; 11. First fiber core; 12. First sheath; 13. First connector; 131. Ring groove; 132. Spring groove; 14. Floating sleeve; 141. Support sleeve; 142. Abutment plate; 1422. Arc-shaped hole; 143. Outer sheath; 2. Second fiber optic group; 21. Second fiber core; 22. Second sheath; 23. Second connector; 231. Positioning groove; 3. Return spring; 4. First magnet; 5. Second magnet. Detailed Implementation

[0028] 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.

[0029] 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.

[0030] Please see Figure 1 - Figure 7As shown, this utility model is an optical fiber assembly suitable for an ELISA reader, including a first optical fiber group 1 and a second optical fiber group 2 that need to be connected. The first optical fiber group 1, from the inside out, has a first fiber core 11, a first sheath 12, and a first connector 13. The second optical fiber group 2, from the inside out, has a second fiber core 21, a second sheath 22, and a second connector 23. The components of each optical fiber group are assembled by covering or by adhesive bonding. The first fiber core 11 protrudes from the front end of the first connector 13. A floating sleeve 14 that mates with the protruding part of the first fiber core 11 is elastically connected to the outside of the first connector 13. The second fiber core 21 is recessed inside the second connector 23. The second connector 23 has an insertion space at its front end for the protrusion of the first fiber core 11, connecting the fiber core from the inside to avoid light leakage and radial position caused by external connection. At the same time, the insertion and mating can improve the connection reliability. A magnetic element that attracts each other radially is provided between the first fiber group 1 and the second fiber group 2, which is more flexible and reliable than end face contact. In addition, the first magnetic block 4 in this utility model can also cooperate with the positioning groove 231 to play an anti-rotation role. The magnetic element includes the first magnetic block 4 and the second magnetic block 5. Both the first magnetic block 4 and the second magnetic block 5 are arc-shaped. The arc-shaped contour can match the shape of the connector, ensuring the adsorption force while facilitating the combination and connection.

[0031] The floating sleeve 14 includes a support sleeve 141 formed on the inner side and slidingly engaged with the annular groove 131. The front end of the support sleeve 141 is provided with a stop plate 142. The sliding between the support sleeve 141 and the annular groove 131 ensures the sliding stability of the inner side between the stop plate 142 and the first fiber core 11. The floating sleeve 14 is provided with an outer sheath 143 that fits and slides outside the first connector 13. The sliding between the outer sheath 143 and the outside of the first connector 13 ensures the sliding stability of the outer side between the stop plate 142 and the first fiber core 11. At the same time, both the support sleeve 141 and the outer sheath 143 protect the protruding part of the first fiber core 11.

[0032] The first magnetic block 4 is fixed at the front end of the first connector 13 and is distributed in a circular pattern on the outside of the first fiber core 11. An arc-shaped hole 1422 for the first magnetic block 4 to pass through is provided in the abutment plate 142. The cooperation between the arc-shaped hole 1422 and the first magnetic block 4 can improve the connection reliability without affecting the use of the floating sleeve 14.

[0033] The first connector 13 has a spring groove 132 on its front end face. A return spring 3 is provided between the spring groove 132 and the floating sleeve 14 to abut against each other. The return spring 3 has a small pressure and will not significantly affect the adsorption of the magnetic block. Both ends are fixed to the contact surfaces of the spring groove 132 and the floating sleeve 14 respectively to prevent the floating sleeve 14 from falling off at the front end of the first connector 13. The floating sleeve 14 covers the outer side of the protrusion of the first fiber core 11 through the return spring 3 to form protection, so as to avoid contamination of the outer side of the front end of the first fiber core 11 when not connected. At the same time, the front end of the first magnetic block 4 also protrudes from the front end of the floating sleeve 14. The protrusion of the first magnetic block 4 facilitates the insertion with the positioning groove 231.

[0034] The second connector 23 has a positioning groove 231 at its front end that is inserted into the first magnetic block 4. When the positioning groove 231 is inserted into the first magnetic block 4, it prevents the rotation between the first optical fiber group 1 and the second optical fiber group 2, thus improving the reliability of the optical fiber connection. The second magnetic block 5 is embedded in the inner side of the inner ring of the positioning groove 231. When the first magnetic block 4 is inserted into the positioning groove 231, it is arranged in an inner and outer ring with the second magnetic block 5. The two are in radial contact. By increasing the length of the arc-shaped contact surface, the adsorption effect can be enhanced without increasing the radial dimension of the optical fiber assembly.

[0035] Among them, the first magnetic block 4 and the second magnetic block 5 are several groups distributed in a circle. The return spring 3 is located between adjacent magnetic elements. The circumferentially distributed magnetic blocks ensure the stability of circumferential adsorption. The position distribution between the return spring 3 and the magnetic blocks is more compact, while ensuring performance.

[0036] It is understood that this utility model reduces the risk of light leakage by designing the second fiber core as an inner recessed structure and the first fiber core as a protruding structure, so that the connection surface of the two is placed inside the second connector, and a floating sleeve is added to the outside of the first fiber core to improve protection; at the same time, the first magnetic block is inserted into the positioning groove to achieve anti-rotation and anti-radial offset, and the arc-shaped adsorption design of the first and second magnetic blocks increases the contact area, thereby enhancing the attraction and connection reliability.

[0037] A specific application of this embodiment is as follows: when the first fiber group 1 is formed, the first fiber core 11 inside protrudes from the front end of the first connector 13, and a floating sleeve 14 is fitted on the protruding part of the first fiber core 11. The floating sleeve 14 and the first connector 13 are elastically connected by a return spring 3. When the second fiber group 2 is formed, the second fiber core 21 is sunk into the second connector 23, and the second connector 23 reserves an insertion space for the first fiber core 11.

[0038] like Figure 3 When the first fiber optic group 1 is not connected, the return spring 3 pushes the floating sleeve 14 forward to protect the front end of the first fiber core 11 while preventing it from detaching from the connection with the first connector 13. The foremost part of the return spring 3 protrudes beyond the floating sleeve 14. Figure 7 The second fiber optic group 2 is not connected.

[0039] Connection: The protrusion of the first magnetic block 4 is inserted into the positioning groove 231, and the front end of the second connector 23 abuts against the abutment plate 142. The two optical fibers are inserted into each other. At this time, the floating sleeve 14 is pushed to fit against the front end of the first connector 13, the return spring 3 is compressed, and the front end of the first fiber core 11 is inserted into the front end of the second connector 23 and fits against the cross section of the second fiber core 21. The return spring 3 and the first magnetic block 4 are attracted radially, and the docking is completed.

[0040] 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.

[0041] 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 suitable for an ELISA reader, comprising a first optical fiber group (1) and a second optical fiber group (2) to be connected, wherein the first optical fiber group (1) is provided with a first fiber core (11), a first sheath (12) and a first connector (13) from the inside out, and the second optical fiber group (2) is provided with a second fiber core (21), a second sheath (22) and a second connector (23) from the inside out, characterized in that: The first fiber core (11) protrudes from the front end of the first connector (13). The first connector (13) is elastically connected to a floating sleeve (14) that mates with the protruding part of the first fiber core (11). The second fiber core (21) sinks into the inner side of the second connector (23). The front end of the second connector (23) forms an insertion space for the protruding part of the first fiber core (11). A magnetic element that attracts each other radially is provided between the first fiber group (1) and the second fiber group (2). The magnetic element includes a first magnetic block (4) and a second magnetic block (5), both of which are arc-shaped.

2. The optical fiber assembly suitable for an ELISA reader according to claim 1, characterized in that: The floating sleeve (14) includes a support sleeve (141) formed on the inner side and slidingly engaged with the annular groove (131) and a stop plate (142) located at the front end of the support sleeve (141). The floating sleeve (14) is provided with an outer sheath (143) that fits and slides outside the first joint (13).

3. The optical fiber assembly suitable for an ELISA reader according to claim 2, characterized in that: The first magnetic block (4) is fixed at the front end of the first connector (13) and is located on the outside of the first fiber core (11) in a circumferential distribution. An arc-shaped hole (1422) for the first magnetic block (4) to pass through is provided in the abutment plate (142).

4. The optical fiber assembly suitable for an ELISA reader according to claim 1, characterized in that: The first connector (13) has a spring groove (132) on its front end face. A return spring (3) is provided between the spring groove (132) and the floating sleeve (14) to abut against each other. The floating sleeve (14) covers the outside of the protrusion of the first fiber core (11) through the return spring (3), and the front end of the first magnet (4) also protrudes from the front end of the floating sleeve (14).

5. The fiber optic assembly suitable for an ELISA reader according to claim 1, characterized in that: The second connector (23) has a positioning groove (231) at its front end that is engaged with the first magnetic block (4), and the second magnetic block (5) is fitted into the inner side of the inner ring of the positioning groove (231).

6. The fiber optic assembly suitable for an ELISA reader according to claim 4, characterized in that: The first magnetic block (4) and the second magnetic block (5) are several groups distributed in a circle, and the return spring (3) is located between adjacent magnetic elements.

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