Positive and negative recognition tool for optical fiber support

By providing a forward and reverse recognition tool including a positioning module and an identification module for the optical fiber support, the problem of time-consuming and labor-consuming artificial naked eye recognition is solved, and rapid identification and improvement of nucleic acid detection efficiency is achieved.

CN222994726UActive Publication Date: 2025-06-17QIAGEN SHENZHEN CO LTD
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Patent Information

Application Number
CN202422014285.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-20
Publication Date
2025-06-17
Estimated Expiration
2034-08-20

AI Technical Summary

Technical Problem

During the production process of nucleic acid analysis gel columns, it takes a lot of time and labor costs to manually identify the front and back of the fiber optic stent, which affects the subsequent detection efficiency.

Method used

A forward and reverse identification tool for optical fiber support is provided, including a positioning module and an identification module. By cooperating with different ends of the optical fiber support, it is kept upright or inverted, thereby quickly identifying the forward and reverse of the optical fiber support.

Benefits of technology

This tool can quickly identify the front and back of the fiber optic stent, reduce the labor intensity of the operator, improve the identification efficiency, and further improve the subsequent nucleic acid detection efficiency.

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Abstract

The utility model discloses a positive and negative recognition tool for an optical fiber support, which comprises a positioning module and a recognition module, and is characterized in that the positioning module comprises a positioning part, the positioning part is provided with a through accommodating hole, and the accommodating hole is used for accommodating the optical fiber support; the identification module comprises a mounting part and an identification piece, one end of the identification piece is connected with the mounting part, and the positioning part sleeves the identification piece through the accommodating hole; the identification piece is used for being matched with one end, in the axial direction, of a positively-placed optical fiber support so that the optical fiber support can be kept in a vertical state; the identification piece is used for being matched with the other end, in the axial direction, of the reversely-placed optical fiber support so that the optical fiber support can be kept in a toppling state. The identification piece is matched with one end of the optical fiber support so that the optical fiber support can be kept in a vertical state, and when the identification piece is matched with the other end of the optical fiber support, the optical fiber support can be kept in a toppling state, so that the front and back of the optical fiber support can be rapidly identified, the labor efficiency of operators is reduced, and the identification efficiency is improved; the subsequent nucleic acid detection efficiency is further improved.
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Description

Technical Field

[0001] This application relates to the technical field of positive and negative identification of optical fiber brackets for nucleic acid analysis gel columns, and particularly relates to a tool for positive and negative identification of optical fiber brackets. Background Art

[0002] The nucleic acid analysis gel column (referred to as the cartridge) is mainly used for the automatic analysis of large molecules such as DNA / RNA with high sensitivity and high resolution in the QIAxcel fully automatic DNA / RNA analysis system, and is mainly used in aspects such as genetics, disease screening, DNA fingerprint analysis, and pathogenic microorganism monitoring and analysis. The production process of the cartridge is to first perform incoming material cleaning, assemble the middle and bottom brackets, inspect the capillary tubes, then perform pressurized cleaning, and finally enter the packaging process after passing the QC inspection.

[0003] During the process, while inspecting the capillary tubes, it is necessary to press the optical fiber bracket into the module opening of the optical fiber bracket base module to facilitate subsequent insertion of the optical fiber into the optical fiber bracket, so as to fix the optical fiber through the optical fiber bracket. When pressing the optical fiber bracket into the module opening of the optical fiber bracket base module, the large hole of the optical fiber bracket needs to face downwards, usually identified by the naked eye of the operator, and then the optical fiber bracket is placed into the module opening of the optical fiber bracket base module. This process consumes a large amount of time and labor costs, affecting the subsequent detection efficiency. Summary of the Utility Model

[0004] This application mainly provides a tool for positive and negative identification of optical fiber brackets to quickly identify the positive and negative of the optical fiber brackets, reduce the intensity of operators, and further improve the subsequent nucleic acid detection efficiency.

[0005] This application provides a tool for positive and negative identification of optical fiber brackets, including:

[0006] A positioning module, the positioning module includes a positioning part, and the positioning part is provided with a receiving hole in a penetrating manner, and the receiving hole is used to accommodate the optical fiber bracket;

[0007] An identification module, the identification module includes a mounting part and an identification member, one end of the identification member is connected to the mounting part, and the positioning part is sleeved on the identification member through the receiving hole;

[0008] The identification member is used to cooperate with one end of the correctly placed optical fiber bracket along its axial direction to keep the optical fiber bracket in an upright state; the identification member is used to cooperate with the other end of the reversely placed optical fiber bracket along its axial direction to keep the optical fiber bracket in a toppled state.

[0009] As a further solution for the positive and negative identification tool for the optical fiber bracket provided in this application, the identification module further includes a limiting portion, and the limiting portion is arranged on the installation portion to limit the positioning portion, so that the accommodating hole is sleeved on the identification member.

[0010] As a further solution for the positive and negative identification tool for the optical fiber bracket provided in this application, the limiting portion is limiting walls arranged on opposite sides in the length direction of the installation portion, and the length between the two limiting walls is equal to the length of the positioning portion.

[0011] As a further solution for the positive and negative identification tool for the optical fiber bracket provided in this application, the positioning module further includes a supporting portion and a connecting portion. The connecting portion is connected between the positioning portion and the supporting portion, so that an avoidance space is formed between the positioning portion and the supporting portion. The avoidance space is used to avoid the optical fiber bracket installation module; the supporting portion is provided with a positioning hole for the identification member to pass through.

[0012] As a further solution for the positive and negative identification tool for the optical fiber bracket provided in this application, the accommodating hole is coaxial with the positioning hole.

[0013] As a further solution for the positive and negative identification tool for the optical fiber bracket provided in this application, the height of the identification member is greater than or equal to the sum of the heights of the accommodating hole, the avoidance space and the positioning hole.

[0014] As a further solution for the positive and negative identification tool for the optical fiber bracket provided in this application, the positioning portion is provided with a plurality of the accommodating holes, the installation portion is provided with a plurality of identification members, and the supporting portion is provided with a plurality of the positioning holes. The plurality of accommodating holes, the plurality of identification members and the plurality of positioning holes correspond to each other one by one.

[0015] As a further solution for the positive and negative identification tool for the optical fiber bracket provided in this application, the plurality of identification members are located on the same straight line, the centers of the plurality of accommodating holes are located on the same straight line, and the centers of the plurality of positioning holes are located on the same straight line.

[0016] As a further solution for the positive and negative identification tool for the optical fiber bracket provided in this application, an identification portion is provided at one end of the identification member away from the installation portion, and the identification portion cooperates with both ends of the optical fiber bracket along its axial direction.

[0017] As a further solution for the positive and negative identification tool for the optical fiber bracket provided in this application, the identification portion is a conical section provided at one end of the identification member away from the installation portion. The size of the conical section is smaller than the first conical hole at one end of the optical fiber bracket in the axial direction and larger than the second conical hole at the other end of the optical fiber bracket in the axial direction.

[0018] The positive and negative identification tool for the optical fiber bracket according to the above embodiment can keep the optical fiber bracket in an upright state when the identification member is engaged with one end of the optical fiber bracket, and can keep the optical fiber bracket in a tilted state when the identification member is engaged with the other end of the optical fiber bracket. Thus, the positive and negative of the optical fiber bracket can be quickly identified, reducing the labor efficiency of the operator, improving the identification efficiency, and further improving the subsequent nucleic acid detection efficiency. Description of the Drawings

[0019] Figure 1 Is a perspective view of the optical fiber bracket;

[0020] Figure 2 Is a sectional view of the optical fiber bracket;

[0021] Figure 3 Is a perspective view of the positive and negative identification tool for the optical fiber bracket provided by the present application;

[0022] Figure 4 Is a sectional view of the positive and negative identification tool for the optical fiber bracket provided by the present application;

[0023] Figure 5 Is an exploded view of the positive and negative identification tool for the optical fiber bracket provided by the present application;

[0024] Figure 6 Is a perspective view of the positioning module in the positive and negative identification tool for the optical fiber bracket provided by the present application;

[0025] Figure 7 Is a perspective view of the identification module in the positive and negative identification tool for the optical fiber bracket provided by the present application;

[0026] Figure 8 Is a schematic diagram of the positive and negative identification tool for the optical fiber bracket provided by the present application applied to the optical fiber bracket installation module;

[0027] Figure 9 Is a sectional view of the positive and negative identification tool for the optical fiber bracket provided by the present application applied to the optical fiber bracket installation module;

[0028] Figure 10 Is a perspective view of the optical fiber bracket installation module.

[0029] Reference Signs:

[0030] Positioning module 10, positioning portion 11, receiving hole 111, supporting portion 12, positioning hole 121, connecting portion 13, avoidance space 14;

[0031] Identification module 20, mounting portion 21, identification member 22, identification portion 221, conical section 222, limiting portion 23, limiting wall 231;

[0032] Optical fiber support 100, first tapered hole 101, second tapered hole 102;

[0033] Optical fiber support installation module 200, module port 201. Detailed implementation manners

[0034] The present invention will be further described in detail below in conjunction with the accompanying drawings through specific implementation manners. Similar elements in different implementation manners are labeled with related similar element numbers. In the following implementation manners, many detailed descriptions are provided to enable a better understanding of the present application. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification to avoid overwhelming the core part of the present application with excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0035] In addition, the features, operations, or characteristics described in the specification can be combined in any appropriate manner to form various implementation manners. At the same time, the steps or actions in the method description can also be reordered or adjusted in an obvious manner by those skilled in the art. Therefore, the various sequences in the specification and drawings are only for clearly describing a certain embodiment and do not mean that they are necessary sequences, unless it is stated that a certain sequence must be followed.

[0036] The serial numbers assigned to the components in this article, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meanings. The "connection" and "coupling" mentioned in this application, unless otherwise specified, both include direct and indirect connections (couplings).

[0037] The optical fiber support is applied to a nucleic acid analysis gel column and is usually installed in an optical fiber support installation module. The optical fiber is inserted into the optical fiber support to fix the optical fiber. Among them, the optical fiber is applied to the capillary inspection step, and the capillary stores a sample to illuminate the capillary through the optical fiber for sample inspection. Refer to Figure 1 and Figure 2 as shown, Figure 1 shows a perspective view of the optical fiber support, Figure 2The cross-sectional view of an optical fiber holder is shown. The optical fiber holder 100 is generally a cylindrical structure. Inside the optical fiber holder 100, a first tapered hole 101 and a second tapered hole 102 are provided along its axial direction. Among them, the tip of the first tapered hole 101 faces the tip of the second tapered hole 102, and both the tip of the first tapered hole 101 and the tip of the second tapered hole 102 face inward. The size of the first tapered hole 101 is larger than that of the second tapered hole 102, and the first tapered hole 101 and the second tapered hole 102 are interconnected, so that the first tapered hole 101 and the second tapered hole 102 form an installation hole for the optical fiber. In practical applications, first press-fit the optical fiber holder 100 into the installation hole of the optical fiber holder installation module, and then insert the optical fiber into the installation hole, and the optical fiber can be positioned.

[0038] During the process of press-fitting the optical fiber holder 100, the first tapered hole 101 of the optical fiber holder 100 needs to face downwards to ensure that the optical fiber holder 100 is in the correct placement state. For this, the operator needs to judge by the way of manual visual recognition, but this process requires a lot of time and labor costs, affecting the subsequent detection efficiency.

[0039] In view of the above problems, the present application provides a positive and negative identification tool for an optical fiber holder to quickly identify the positive and negative of the optical fiber holder, thereby improving the subsequent detection efficiency.

[0040] See Figures 1-7 As shown, the positive and negative identification tool for the optical fiber holder provided by the present application includes a positioning module 10 and an identification module 20. Among them, the positioning module 10 can position the optical fiber holder 100, and the identification module 20 identifies the positive and negative of the optical fiber holder 100.

[0041] The positioning module 10 includes a positioning part 11. The positioning part 11 is provided with a receiving hole 111 in a penetrating manner. The receiving hole 111 is used to accommodate the optical fiber holder 100. The optical fiber holder 100 can be positioned through the receiving hole 111, so that the optical fiber holder 100 can be placed in accordance with the press-fitting direction.

[0042] The identification module 20 includes a mounting part 21 and an identification member 22. One end of the identification member 22 is connected to the mounting part 21, and the positioning part 11 is sleeved on the identification member 22 through the receiving hole 111.

[0043] The identification member 22 is used to cooperate with one end of the correctly placed optical fiber holder 100 along its axial direction to keep the optical fiber holder 100 in an upright state. The identification member 22 is also used to cooperate with the other end of the reversely placed optical fiber holder 100 along its axial direction to keep the optical fiber holder 100 in a tilted state.

[0044] It should be noted that the optical fiber support 100 is similar to a columnar structure. The pressing direction of the optical fiber support 100 is the same as its axial direction. The first tapered hole 101 and the second tapered hole 102 are respectively arranged at one end and the other end of the optical fiber support 100 along the axial direction of the optical fiber support 100. In other words, when placed upright, the first tapered hole 101 of the optical fiber support 100 can cooperate with the identification member 22 to keep it in an upright state, and when placed upside down, the second tapered hole 101 of the optical fiber support 100 cooperates with the identification member 22 to keep it in a tilted state.

[0045] As Figures 3-5 In the optical fiber support 100 on the left side in [figure], it is in the upright state with the first tapered hole 101 facing down, and the optical fiber support 100 on the right side is in the upside-down state with the second tapered hole 102 facing down. In this way, when the identification member 22 cooperates with the first tapered hole 101 at one end of the optical fiber support 100, the optical fiber support 100 can be kept in an upright state, and when the identification member 22 cooperates with the second tapered hole 102 at the other end of the optical fiber support 100, the optical fiber support 100 can be kept in a tilted state. Thus, the front and back of the optical fiber support 100 can be quickly identified.

[0046] It should be noted that when the optical fiber support 100 is in the upside-down state with the second tapered hole 102 facing down and is positioned in the receiving hole 111, when cooperating with the identification member 22, it can be ejected from the receiving hole 111 by the identification member 22 and be in a tilted state. At this time, the operator can adjust the direction of the identification member 22 to make it in the upright state with the first tapered hole 101 facing down, so as to reduce the labor intensity of the operator and improve the identification efficiency.

[0047] In a specific embodiment, the optical fiber support 100 is positioned in the receiving hole 111, and the positioning portion 11 is sleeved on the identification member 22 of the mounting portion 21 through the receiving hole 111. During the sleeving process, the identification member 22 keeps the optical fiber support 100 with the first tapered hole 101 facing down in an upright state, and keeps the optical fiber support 100 with the second tapered hole 102 facing down in a tilted state. In this way, the operator can quickly judge the front and back states of the optical fiber support 100, thereby improving the efficiency of subsequent nucleic acid detection.

[0048] In this embodiment, an identification portion 221 is provided at one end of the identification member 22 away from the mounting portion 21. The identification portion 221 cooperates with both ends of the optical fiber support 100 along its axial direction, that is, the identification portion 221 cooperates with the first tapered hole 101 and the second tapered hole 102 of the optical fiber support 100 along its axial direction, so as to keep the optical fiber support 100 in an upright state when the first tapered hole 101 faces down, and keep the optical fiber support 100 in a tilted state when the second tapered hole 102 faces down.

[0049] To match the shape of the first tapered hole 101, the recognition portion 221 is a tapered section 222 provided at one end of the recognition member 22 away from the mounting portion 21. The size of the tapered section 222 is smaller than the first tapered hole 101 at one end of the optical fiber bracket 100 in the axial direction and larger than the second tapered hole 102 at the other end of the optical fiber bracket 100 in the axial direction. Thus, when the first tapered hole 101 is positioned downward in the receiving hole 111, the tapered section 222 can be inserted into the first tapered hole 101 and cooperate with the first tapered hole 101 to keep the optical fiber bracket 100 in an upright state. When the second tapered hole 102 is positioned downward in the receiving hole 111, the tapered section 222 cannot be inserted into the second tapered hole 102, causing the tapered section 222 to abut against the optical fiber bracket 100 and making the optical fiber bracket 100 in a tilted state. In this way, the front and back of the optical fiber bracket 100 can be quickly recognized.

[0050] It should be noted that when the optical fiber bracket 100 is in the inverted state with the second tapered hole 102 facing downward, when the operator quickly locates the optical fiber bracket 100 in the receiving hole 111 and finds it in a tilted state, the front and back state of the optical fiber bracket 100 can be manually adjusted.

[0051] Of course, it is not difficult to understand that due to the special structure of the optical fiber bracket 100 with the first tapered hole 101 and the second tapered hole 102 of different sizes arranged in the axial direction, the front and back of the optical fiber bracket 100 can be recognized by the tapered section 222 at one end of the recognition member 22 away from the mounting portion 21 by keeping it in an upright state or a tilted state. If the front and back of workpieces with other structures are to be recognized, other structures and methods can be used for recognition.

[0052] Or, through image recognition. For example, a front-back identification mark indicating the front and back is set on the workpiece. The front-back identification mark can be, for example, an arrow. By recognizing the indicating direction of the arrow, the front and back of the workpiece can be judged. For example, when the recognized arrow points upward, it can be judged that the workpiece is in the upright state.

[0053] When the positioning portion 11 can be accurately and quickly sleeved on the recognition member 22 of the mounting portion 21 through the receiving hole 111, see Figures 2-5 and Figure 7 as shown, the recognition module 20 further includes a limiting portion 23. The limiting portion 23 is provided on the mounting portion 21 to limit the positioning portion 11 so that the receiving hole 111 is sleeved on the recognition member 22.

[0054] In this embodiment, the limiting part 23 is a limiting wall 231 arranged on opposite sides in the length direction of the mounting part 21. The length between the two limiting walls 231 is equal to the length of the positioning part 11. In other words, the position where the identification part 22 is arranged on the positioning part 21 corresponds to the part where the accommodating hole 111 is arranged on the positioning part 11, and the length of the positioning part 11 is equal to the length between the two limiting walls 231. When the positioning part 11 is matched with the mounting part 21, the positioning part 11 can be limited by the two limiting walls 231, and it is ensured that the accommodating hole 111 can be sleeved on the identification part 22.

[0055] In this application, when it is identified by the identification part 22 that the optical fiber bracket 100 is in the correct placement state, the optical fiber bracket 100 is positioned in the accommodating hole 111, as Figures 8-10 shown. After that, the optical fiber bracket 100 can be press-fitted into the module port 201 of the optical fiber bracket mounting module 200 through an optical fiber press. In order to facilitate the cooperation with the optical fiber bracket module 200, see Figures 2-6 shown. The positioning module 10 provided in this embodiment further includes a support part 12 and a connecting part 13. The connecting part 13 is connected between the positioning part 11 and the support part 12, so as to form an avoidance space 14 between the positioning part 11 and the support part 12. The support part 12 can position the positioning module 10 on a plane, and the avoidance space 14 is used to avoid the optical fiber bracket mounting module 200. The support part 12 is provided with a positioning hole 121, and the positioning hole 121 is used for the identification part 22 to penetrate through to position the identification part 22.

[0056] In this embodiment, the accommodating hole 111 and the positioning hole 121 are coaxial. When the identification part 22 is positioned in the positioning hole 121, it can penetrate through the accommodating hole 111.

[0057] See Figures 8-10 shown. The optical fiber bracket mounting module 200 is provided with a module port 201. Installing the side of the optical fiber bracket mounting module 200 where the module port 201 is located in the avoidance space 14 can make the module port 201 and the accommodating hole 111 and the positioning hole 121 maintain a coaxial relationship. The module port 201 is preferably a structure that penetrates through the optical fiber bracket mounting module 200. Then, the identification part 22 in the identification module 20 can be sequentially penetrated through the positioning hole 121, the module port 201, and the accommodating hole 111 from the bottom of the support part 12, so as to identify the front and back of the optical fiber bracket 100. When it is identified that the optical fiber bracket 100 is in the correct placement state or the optical fiber bracket 100 in the reverse placement state is adjusted to the correct placement state, the identification module 20 is removed. After that, the optical fiber bracket 100 is press-fitted from the accommodating hole 111 into the module port 201 of the optical fiber bracket mounting module 200 through an optical fiber press.

[0058] In this embodiment, the height of the identification member 22 is greater than or equal to the sum of the heights of the accommodation hole 111, the avoidance space 14, and the positioning hole 121, so that when the optical fiber bracket 100 is placed upside down, the optical fiber bracket 100 can be moved out of the accommodation hole 111 and be in a tilted state through the cooperation between the end of the identification member 22 away from the installation portion 21 and the optical fiber bracket 100.

[0059] As shown in Figures 3-10 the figure, the positioning portion 11 is provided with a plurality of accommodation holes 111, the installation portion 21 is provided with a plurality of identification members 22, and the support portion 12 is provided with a plurality of positioning holes 121. The plurality of accommodation holes 111, the plurality of identification members 22, and the plurality of positioning holes 121 correspond to each other one by one. In this way, the front and back of a plurality of optical fiber brackets 100 can be identified each time.

[0060] In this embodiment, for example, 12 accommodation holes 111, 12 identification members 22, and 12 positioning holes 121 can be provided, and each accommodation hole 111, identification member 22, and positioning hole 121 correspond to each other one by one.

[0061] In a preferred embodiment, the plurality of identification members 22 are located on the same straight line, the centers of the plurality of accommodation holes 111 are located on the same straight line, and the centers of the plurality of positioning holes 121 are located on the same straight line, so as to facilitate the arrangement of the identification member 22, the accommodation hole 111, and the positioning hole 121.

[0062] In a more preferred embodiment, the distances between adjacent two of the plurality of identification members 22, the distances between adjacent two of the plurality of accommodation holes 111, and the distances between adjacent two of the plurality of positioning holes 121 are all the same.

[0063] In summary, for the front and back identification tool for the optical fiber bracket provided by the present application, the cooperation between the identification member and one end of the optical fiber bracket can keep the optical fiber bracket in an upright state, while when the identification member cooperates with the other end of the optical fiber bracket, the optical fiber bracket can be kept in a tilted state. Thus, the front and back of the optical fiber bracket can be quickly identified, reducing the labor efficiency of the operator, improving the identification efficiency, and further improving the subsequent nucleic acid detection efficiency.

[0064] The above uses specific examples to elaborate on the present invention, which is only used to help understand the present invention and is not intended to limit the present invention. For those skilled in the technical field of the present invention, according to the idea of the present invention, several simple deductions, deformations, or replacements can also be made.

Claims

1. A front and back identification tool for an optical fiber bracket, characterized in that: include: A positioning module, the positioning module comprising a positioning portion, the positioning portion having a receiving hole therethrough, the receiving hole being used to receive the optical fiber bracket; An identification module, the identification module comprising a mounting portion and an identification member, one end of the identification member is connected to the mounting portion, and the positioning portion is sleeved on the identification member through the accommodating hole; The identification piece is used to cooperate with one end of the upright optical fiber holder along its axial direction to keep the optical fiber holder in an upright state; the identification piece is used to cooperate with the other end of the inverted optical fiber holder along its axial direction to keep the optical fiber holder in a tilted state.

2. The front and back identification tool for an optical fiber bracket according to claim 1, characterized in that: The identification module further includes a limiting portion, which is disposed on the mounting portion to limit the positioning portion so that the accommodating hole is sleeved on the identification member.

3. The front and back identification tool for an optical fiber bracket according to claim 2, characterized in that: The limiting portion is a limiting wall disposed on two opposite sides of the mounting portion in the length direction, and the length between the two limiting walls is equal to the length of the positioning portion.

4. The front and back identification tool for an optical fiber bracket according to claim 1, characterized in that: The positioning module also includes a supporting portion and a connecting portion, wherein the connecting portion is connected between the positioning portion and the supporting portion to form an avoidance space between the positioning portion and the supporting portion, and the avoidance space is used to avoid the optical fiber bracket installation module; the supporting portion is provided with a positioning hole, and the positioning hole is used for the identification member to pass through.

5. The front and back identification tool for an optical fiber bracket according to claim 4, characterized in that: The accommodating hole is coaxial with the positioning hole.

6. The front and back identification tool for an optical fiber bracket according to claim 5, characterized in that: The height of the identification member is greater than or equal to the sum of the heights of the accommodating hole, the avoidance space, and the positioning hole.

7. The front and back identification tool for an optical fiber bracket according to claim 6, characterized in that: The positioning portion is provided with a plurality of the accommodating holes, the mounting portion is provided with a plurality of the identification members, and the supporting portion is provided with a plurality of the positioning holes. The plurality of the accommodating holes, the plurality of the identification members, and the plurality of the positioning holes correspond to each other one by one.

8. The front and back identification tool for an optical fiber bracket according to claim 7, characterized in that: The multiple identification members are located on the same straight line, the centers of the multiple accommodating holes are located on the same straight line, and the centers of the multiple positioning holes are located on the same straight line.

9. The front and back identification tool for an optical fiber bracket according to claim 1, characterized in that: An identification portion is provided at one end of the identification piece away from the mounting portion, and the identification portion cooperates with two ends of the optical fiber bracket along the axial direction thereof.

10. The front and back identification tool for an optical fiber bracket according to claim 1, characterized in that: The identification portion is a conical section arranged at one end of the identification piece away from the mounting portion, and the size of the conical section is smaller than the first conical hole at one end of the optical fiber bracket in the axial direction, and larger than the second conical hole at the other end of the optical fiber bracket in the axial direction.