Fixing clamp and optical fiber sensing monitoring system

Abstract

The utility model belongs to the technical field of fixing clamps, and discloses a fixing clamp and an optical fiber sensing monitoring system, and the fixing clamp comprises a fixing part and an anti-falling part. The fixing piece comprises a first clamping part and a second clamping part which are connected with each other, a clamping groove is formed between the first clamping part and the second clamping part, a fixing part is arranged on the side, facing the clamping groove, of the first clamping part, a first inclined face is arranged on the side, facing the clamping groove, of the second clamping part, and a first connecting part is arranged on the side, deviating from the clamping groove, of the second clamping part. The anti-falling piece comprises an anti-falling part and a second connecting part connected with the anti-falling part, the second connecting part is detachably connected with the first connecting part, one end of the anti-falling part is provided with an anti-falling wall, the anti-falling wall and the opening of the clamping groove are oppositely arranged, the other end of the anti-falling part is of a wedge-shaped structure, the wedge-shaped structure comprises a second inclined plane, the second inclined plane abuts against the first inclined plane, and the second inclined plane is provided with a first inclined plane. And the position of the second inclined surface on the first inclined surface is adjustable. The fixing clamp can be suitable for laying of sensing optical cables on frame bodies of various specifications, and the anti-falling performance is good.

Description

Technical Field

[0001] The utility model relates to the technical field of fixing fixtures, in particular to a fixing fixture and an optical fiber sensing monitoring system. Background Art

[0002] As the use of energy sources such as ore and coal gradually increases, the safety of belt conveyors responsible for mining and transportation has gradually become a focus of attention. By using distributed fiber optic vibration measurement technology to timely detect the points where belt conveyors fail during operation, the purpose of timely maintenance can be achieved.

[0003] For distributed fiber-optic vibration measurement technology, laying and securing optical cables is a major challenge in construction. Traditionally, the cable is clamped to a steel channel using a fixture. However, during operation, the channel vibrates significantly, which can easily cause the fixture to loosen, resulting in poor securing effectiveness. Furthermore, fixtures are often customized based on the size of the channel, requiring different fixtures for different channel sizes, leading to high cable laying costs. Utility Model Content

[0004] According to one aspect of the utility model, the utility model provides a fixing clamp that is suitable for laying uplink optical cables on frames of various specifications, has good anti-slip properties, improves the reliability of laying uplink optical cables, has a simple structure, and is easy to install.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] Fixing fixture, including:

[0007] A fixing member includes a first clamping portion and a second clamping portion connected to each other, a clamping groove formed between the first clamping portion and the second clamping portion, a fixing portion provided on a side of the first clamping portion facing the clamping groove, a first inclined surface provided on a side of the second clamping portion facing the clamping groove, and a first connecting portion provided on a side of the second clamping portion facing away from the clamping groove;

[0008] The anti-slip part includes an anti-slip part and a second connecting part connected to the anti-slip part, the second connecting part is detachably connected to the first connecting part, one end of the anti-slip part is provided with an anti-slip wall, the anti-slip wall is configured to be arranged opposite to the opening of the clamping groove, the other end of the anti-slip part is a wedge-shaped structure, the wedge-shaped structure includes a second inclined surface, the second inclined surface is configured to abut against the first inclined surface, and the position of the second inclined surface on the first inclined surface is adjustable.

[0009] Optionally, the fixing portion is configured to press the sensing optical cable tightly against the side wall of the frame, the fixing member is configured to be inserted into one end of the frame through the clamping groove, and the anti-detachment wall is configured to abut against the other end of the frame, so that the fixing fixture is clamped and fixed to the frame;

[0010] The height of the anti-slip wall relative to the anti-slip portion is H1, the maximum width of the clamping groove is H2, and H1 and H2 satisfy: H2≤H1.

[0011] Optionally, the fixing portion is a fixing groove provided on the first clamping portion, and the fixing groove is used to cooperate with at least a portion of the sensing optical cable.

[0012] Optionally, the fixing groove is arc-shaped, and the inner peripheral wall of the fixing groove is attached to the outer peripheral wall of the sensing optical cable.

[0013] Optionally, a first anti-slip structure is provided on the inner peripheral wall of the fixing groove.

[0014] Optionally, the angle between the first inclined surface and the opening direction of the clamping groove is 5°-10; and / or, the first inclined surface is located at the opening of the clamping groove, and the first inclined surface is inclined in a direction away from the clamping groove.

[0015] Optionally, the anti-slip portion includes a first plate surface and a second plate surface arranged back to back, the first plate surface is a plane, and one end of the second plate surface is provided with the second inclined surface; and / or, the anti-slip wall is provided with a second anti-slip structure on the side facing the clamping groove.

[0016] Optionally, the fixing fixture further includes a bolt and a nut, a first connecting hole is provided on the first connecting portion, a second connecting hole is provided on the second connecting portion, and the bolt passes through the first connecting hole and the second connecting hole and is connected to the nut.

[0017] Optionally, an anti-loosening layer is provided on the threaded section of the bolt, and the anti-loosening layer is configured to limit the rotation of the nut relative to the bolt.

[0018] Optionally, the position of the second inclined surface on the first inclined surface along the inclined direction of the first inclined surface is adjustable, and the opening axis of the first connecting hole and the opening axis of the second connecting hole are both parallel to the inclined direction of the first inclined surface.

[0019] According to another aspect of the present invention, the present invention also provides a fiber optic sensing monitoring system, including a monitoring host, a sensing optical cable and a fixing clamp described in any of the above technical solutions, wherein the sensing optical cable is connected to the monitoring host optical signal, and the fixing clamp is used to fix the sensing optical cable on a frame.

[0020] Beneficial effects of the utility model:

[0021] The utility model provides a fixing clamp, including a fixing part and an anti-slip part. When in use, the side wall of the frame where the sensor optical cable needs to be laid is placed between the clamping groove of the fixing part and the anti-slip wall of the anti-slip part, and then the position of the fixing part is adjusted so that the fixing part on the first clamping part of the fixing part presses the sensor optical cable against the side wall of the frame, and then the position of the second inclined surface of the anti-slip part relative to the first inclined surface of the fixing part is adjusted so that the side wall of the frame can be clamped by the clamping groove and the anti-slip wall, and the second connecting part is detachably connected to the first connecting part, thereby completing the fixing of the sensor optical cable on the frame. The fixing clamp can adjust the distance between the anti-slip wall and the clamping groove by adjusting the position of the second inclined surface relative to the first inclined surface, so as to be applicable to frames of different sizes, and has high universality. Furthermore, by clamping one end of the side wall with the clamping groove, the second inclined surface abutting the first inclined surface, and the anti-slip wall abutting the other end of the side wall, the connection strength between the fixing clamp and the frame is improved, thereby reducing the risk of the fixing clamp loosening due to frame vibration and improving the reliability of sensor cable installation. In addition, the fixing clamp has a simple structure, low cost, and is easy to install and disassemble, which is conducive to improving the efficiency of sensor cable installation.

[0022] The utility model also provides a fiber optic sensing monitoring system, comprising a monitoring host, a sensing optical cable and the above-mentioned fixing fixture. Due to the use of the above-mentioned fixing fixture, the reliability of the sensor optical cable laying is better, thereby improving the reliability of the fiber optic sensing monitoring system. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0024] Figure 1 This is an assembly diagram of the fixing fixture and the frame provided in an embodiment of the present utility model;

[0025] Figure 2 yes Figure 1 Enlarged view at point A;

[0026] Figure 3 This is an exploded schematic diagram of a fixing fixture provided by an embodiment of the present utility model;

[0027] Figure 4 This is a schematic structural diagram of a fixing member provided by an embodiment of the present utility model;

[0028] Figure 5 It is a structural schematic diagram of the anti-slip component provided by an embodiment of the utility model.

[0029] In the picture:

[0030] 10. Frame; 11. Side wall; 20. Sensor optical cable;

[0031] 100, fixing member; 101, clamping groove; 110, first clamping portion; 111, fixing portion; 120, second clamping portion; 121, first inclined surface; 122, first connecting portion; 1221, first connecting hole;

[0032] 200, anti-slip member; 210, anti-slip portion; 201, first plate surface; 211, wedge-shaped structure; 2111, second inclined surface; 212, anti-slip wall; 220, second connecting portion; 221, second connecting hole;

[0033] 310. Bolt; 320. Nut. DETAILED DESCRIPTION

[0034] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0035] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0036] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0037] In the description of the embodiments of this application, terms such as "upper," "lower," "left," and "right" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0038] The embodiments of the present application provide a fixing fixture that is applicable to the laying of sensing optical cables on frames of various specifications, has good anti-slip properties, improves the reliability of the laying of sensing optical cables, and has a simple structure and is easy to install.

[0039] Specifically, if Figure 1-Figure 5 As shown, the fixing fixture includes a fixing member 100 and an anti-slip member 200 .

[0040] Among them, the fixing member 100 includes a first clamping portion 110 and a second clamping portion 120 connected to each other, a clamping groove 101 is formed between the first clamping portion 110 and the second clamping portion 120, a fixing portion 111 is provided on the side of the first clamping portion 110 facing the clamping groove 101, a first inclined surface 121 is provided on the side of the second clamping portion 120 facing the clamping groove 101, and a first connecting portion 122 is provided on the side of the second clamping portion 120 away from the clamping groove 101. The anti-slip part 200 includes an anti-slip part 210 and a second connecting part 220 connected to the anti-slip part 210. The second connecting part 220 is detachably connected to the first connecting part 122. An anti-slip wall 212 is provided at one end of the anti-slip part 210. The anti-slip wall 212 is configured to be arranged opposite to the opening of the clamping groove 101. The other end of the anti-slip part 210 is a wedge-shaped structure 211. The wedge-shaped structure 211 includes a second inclined surface 2111. The second inclined surface 2111 is configured to abut against the first inclined surface 121. The position of the second inclined surface 2111 on the first inclined surface 121 is adjustable.

[0041] The fixing clamp can be fixed to the side wall 11 of the frame 10 through the cooperation between the clamping groove 101 and the anti-slip wall 212, and the second inclined surface 2111 abuts against the first inclined surface 121. At the same time, the sensor optical cable 20 to be laid can be fixed to the side wall 11 through the fixing part 111 on the first clamping part 110 to realize the laying of the sensor optical cable 20.

[0042] The method of using the fixing fixture is as follows:

[0043] First, adjust the position of the second inclined surface 2111 relative to the first inclined surface 121 so that the distance between the bottom of the clamping groove 101 and the anti-slip wall 212 is greater than the length of the side wall 11 of the frame 10; in some embodiments, the side wall 11 can be Figure 1The side plate portion of the channel steel shown. The frame 10 refers to a structure that requires assembly of a fixing fixture. It is worth noting that the frame 10 can be a channel steel or other structure. Figure 1 The structure of the side wall 11 shown is sufficient and is not specifically limited in this application.

[0044] Then, the fixing fixture is put on the side wall 11 of the frame 10. Specifically, one end of the side wall 11 of the frame 10 where the sensor optical cable 20 needs to be laid is placed in the clamping groove 101, and the other end is in contact with the anti-slip wall 212. Then, the position of the fixing member 100 is adjusted so that the fixing part 111 presses the sensor optical cable 20 against the side wall 11 of the frame 10. Finally, the position of the first inclined surface 121 of the fixing member 100 is adjusted relative to the second inclined surface 2111 of the anti-slip member 200, so that the clamping groove 101 moves toward the anti-slip wall 212, and the second connecting part 220 is detachably connected to the first connecting part 122, so that the side wall 11 can be clamped and fixed by the clamping groove 101 and the anti-slip wall 212.

[0045] The fixing fixture provided in the embodiment of the present application can adjust the distance between the anti-slip wall 212 and the clamping groove 101 by adjusting the position of the second inclined surface 2111 relative to the first inclined surface 121, so as to be applicable to frames 10 of different sizes, and has high universality. By clamping one end of the side wall 11 through the clamping groove 101, the second inclined surface 2111 abuts against the first inclined surface 121, and the anti-slip wall 212 abuts against the other end of the side wall 11 of the frame 10, thereby improving the connection strength between the fixing fixture and the frame 10, thereby reducing the risk of the fixing fixture loosening due to vibration of the frame 10, and improving the reliability of the installation of the sensor cable 20. In addition, the fixing fixture has a simple structure, low cost, and is easy to install and disassemble, which is conducive to improving the installation efficiency of the sensor cable 20.

[0046] For explanation, frames 10 of different sizes are mainly composed of channel steels of different specifications, and the corresponding side walls 11 of different specifications have different widths and thicknesses; the fixing clamp provided in the embodiment of the present application can adapt to frames 10 of different sizes on the one hand, and has high universality; on the other hand, one end of the side wall 11 is clamped by the clamping groove 101, the second inclined surface 2111 abuts against the first inclined surface 121, and the anti-slip wall 212 abuts against the other end of the side wall 11 of the frame 10, thereby improving the connection strength between the fixing clamp and the frame 10, thereby reducing the risk of the fixing clamp loosening due to vibration of the frame 10, and improving the reliability of the laying of the sensor optical cable 20.

[0047] In the embodiment of the present application, the fixing fixture is used to fix the sensing optical cable 20 on the side wall 11 of the channel steel.

[0048] Further, see Figure 2The height of the anti-slip wall 212 relative to the anti-slip portion 210 is H1, and the maximum width of the clamping groove 101 is H2. H1 and H2 satisfy the following relationship: H2 ≤ H1. This arrangement improves the clamping effect of the anti-slip wall 212 on the side wall 11, thereby improving the anti-slip effect of the fixing clamp. Furthermore, H2 ≤ H1 ≤ H2 + 2 mm can be achieved.

[0049] Explanatory note, the thickness of the side wall 11 of the channel steel of different specifications that needs to be inserted into the clamping groove 101 is different. Therefore, the maximum width H2 of the clamping groove 101 needs to be greater than the one with the largest corresponding thickness; to ensure that the clamping groove 101 can be adaptively inserted into the corresponding end of the side wall 11 of the channel steel of the corresponding specification.

[0050] Optionally, continue with Figure 2-Figure 4 In one possible embodiment, the fixing portion 111 is a fixing groove provided on the first clamping portion 110. The fixing groove is configured to cooperate with at least a portion of the sensing optical cable 20, thereby pressing the sensing optical cable 20 against the surface of the side wall 11. The fixing portion 111 has a simple structure, is easy to assemble, and is convenient to manufacture. For applications requiring the capture of vibration signals transmitted within the frame 10, it can press the sensing optical cable 20 against the surface of the side wall 11, thereby achieving a good application effect.

[0051] Furthermore, in order to improve the fixing effect of the fixing groove on the sensor optical cable 20, as shown in FIG. Figure 2 As shown, it should be ensured that at least the top of the sensing optical cable 20 is placed in the fixing groove.

[0052] Furthermore, in order to improve the reliability of the fixing fixture in fixing the sensing optical cable 20 under vibration conditions, a first anti-slip structure can be set on the inner wall of the fixing groove to increase the friction between the inner wall of the fixing groove and the sensing optical cable 20, thereby reducing the risk of the sensing optical cable 20 detaching from the fixing groove.

[0053] Optionally, the first anti-slip structure can be an anti-slip pattern provided on the inner peripheral wall of the fixing groove, which has a better anti-slip effect, a simple structure and is easy to process. It is conceivable that an anti-slip pad or other structure can also be used.

[0054] Furthermore, the fixing groove is arc-shaped, and the inner peripheral wall of the fixing groove is attached to the outer peripheral wall of the sensing optical cable 20. Since the sensing optical cable 20 is generally cylindrical, setting the fixing groove as an arc shape can make the inner peripheral wall of the fixing groove fit more closely to the sensing optical cable 20, thereby improving the reliability of the fixing groove in fixing the sensing optical cable 20.

[0055] Further, see Figure 2The angle a between the first inclined surface 121 and the opening direction of the clamping groove 101 is 5°-10°. This configuration can not only reduce the overall size of the fixing fixture, but also make the fixing fixture compatible with a wider range of frame 10 specifications.

[0056] It is worth noting that, in the embodiment of the present application, the opening direction of the clamping groove 101 is Figure 2 The positive direction of the X axis.

[0057] Further, see Figure 2 、 Figure 3 and Figure 5 The anti-slip portion 210 includes a first plate surface 201 and a second plate surface disposed opposite each other. The first plate surface 201 is flat, and one end of the second plate surface is provided with a second inclined surface 2111. By setting the first plate surface 201 as a flat surface, it is suitable for a frame 10 with a flat side wall 11. In this case, the first plate surface 201 is attached to the side wall 11, which can improve the anti-slip effect of the fixing clamp.

[0058] Of course, the shape of the first plate surface 201 can also be adapted according to the structure of the side wall 11. For example, if the side wall 11 is a slope, the first plate surface 201 can also be a slope. The first plate surface 201 can abut against the side wall 11. This application does not make any specific restrictions.

[0059] Furthermore, a second anti-slip structure can be provided on the side of the anti-slip wall 212 facing the clamping groove 101. This second anti-slip structure can increase the friction between the anti-slip wall 212 and the side wall 11, thereby reducing the risk of the anti-slip wall 212 detaching from the side wall 11 under vibration conditions, thereby improving the anti-slip performance of the fixing fixture. The second anti-slip structure can also be an anti-slip pad or anti-slip grooves, etc., without specific limitation.

[0060] Further, see Figures 1-4 The fixing fixture further includes a bolt 310 and a nut 320. A first connecting hole 1221 is defined on the first connecting portion 122, and a second connecting hole 221 is defined on the second connecting portion 220. The bolt 310 is passed through the first connecting hole 1221 and the second connecting hole 221 and is connected to the nut 320. The first connecting portion 122 and the second connecting portion 220 are connected by the cooperation of the bolt 310 and the nut 320. This not only ensures the connection strength between the first connecting portion 122 and the second connecting portion 220, but also allows the position of the second inclined surface 2111 on the first inclined surface 121 to be adjusted by adjusting the distance between the first connecting portion 122 and the second connecting portion 220. This reduces the difficulty of assembling the fixing fixture with the frame 10 and the optical sensing cable 20.

[0061] Optionally, an anti-loosening layer can be provided on the threaded section of the bolt 310, and the anti-loosening layer is used to limit the rotation of the nut 320 relative to the bolt 310. Since there is a risk that the nut 320 will rotate relative to the bolt 310 under vibration conditions, if the nut 320 rotates relative to the bolt 310, it is easy to cause the connection between the first connecting portion 122 and the second connecting portion 220 to become loose, causing the anti-loosening wall 212 to move away from the clamping groove 101, thereby causing the fixing fixture to fall off from the side wall 11. Therefore, by providing an anti-loosening layer to limit the rotation of the nut 320 relative to the bolt 310, the anti-loosening performance of the fixing fixture is improved. Optionally, the anti-loosening layer can be formed by applying glue on the threaded section, which is easy to process.

[0062] Further, refer to Figure 1-Figure 5 The position of the second inclined surface 2111 on the first inclined surface 121 along the inclination direction of the first inclined surface 121 is adjustable, and the opening axis of the first connecting hole 1221 and the opening axis of the second connecting hole 221 are both parallel to the inclination direction of the first inclined surface 121. This arrangement ensures that no matter how the position of the second inclined surface 121 on the first inclined surface 2111 is adjusted, the bolt 310 and the nut 320 can ensure a reliable connection between the first connecting portion 122 and the second connecting portion 220.

[0063] For an explanation of the inclination direction of the first inclined surface 121, see Figure 2 The first inclined surface 121 is located at the opening of the clamping groove 101, and the first inclined surface 121 is inclined in a direction away from the clamping groove 101. More specifically, the first inclined surface 121 is inclined in a direction away from the clamping groove 101 in the XY plane.

[0064] In addition, embodiments of the present application also provide a fiber optic sensing and monitoring system, comprising a monitoring host, a sensing optical cable 20, and the aforementioned fixing fixture. The sensing optical cable 20 is optically connected to the monitoring host, and the fixing fixture is used to secure the sensing optical cable 20 to the frame 10. The use of the aforementioned fixing fixture in the fiber optic sensing and monitoring system facilitates reliable installation of the sensing optical cable 20, thereby improving the operational reliability of the fiber optic sensing and monitoring system.

[0065] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. Fixing fixture, characterized in that, include: A fixing member (100) comprises a first clamping portion (110) and a second clamping portion (120) connected to each other, wherein a clamping groove (101) is formed between the first clamping portion (110) and the second clamping portion (120), a fixing portion (111) is provided on a side of the first clamping portion (110) facing the clamping groove (101), a first inclined surface (121) is provided on a side of the second clamping portion (120) facing the clamping groove (101), and a first connecting portion (122) is provided on a side of the second clamping portion (120) facing away from the clamping groove (101); The anti-slip component (200) comprises an anti-slip portion (210) and a second connecting portion (220) connected to the anti-slip portion (210), wherein the second connecting portion (220) is detachably connected to the first connecting portion (122), one end of the anti-slip portion (210) is provided with an anti-slip wall (212), and the anti-slip wall (212) is configured to be arranged opposite to the opening of the clamping groove (101), and the other end of the anti-slip portion (210) is a wedge-shaped structure (211), and the wedge-shaped structure (211) includes a second inclined surface (2111), and the second inclined surface (2111) is configured to abut against the first inclined surface (121), and the position of the second inclined surface (2111) on the first inclined surface (121) is adjustable.

2. The fixing fixture according to claim 1, characterized in that: The fixing portion (111) is configured to press the sensing optical cable (20) against the side wall (11) of the frame (10), the fixing member (100) is configured to be inserted into one end of the frame (10) through the clamping groove (101), and the anti-slip wall (212) is configured to abut against the other end of the frame (10) so that the fixing fixture is clamped and fixed to the frame (10); The height of the anti-slip wall (212) relative to the anti-slip portion (210) is H1, the maximum width of the clamping groove (101) is H2, and H1 and H2 satisfy: H2≤H1.

3. The fixing fixture according to claim 1, characterized in that: The fixing portion (111) is a fixing groove provided on the first clamping portion (110), and the fixing groove is used to cooperate with at least a portion of the sensing optical cable (20).

4. The fixing fixture according to claim 3, characterized in that: A first anti-slip structure is provided on the inner peripheral wall of the fixing groove.

5. The fixing fixture according to claim 1, characterized in that: The angle between the first inclined surface (121) and the opening direction of the clamping groove (101) is 5°-10°; and / or the first inclined surface (121) is located at the opening of the clamping groove (101), and the first inclined surface (121) is inclined in a direction away from the clamping groove (101).

6. The fixing fixture according to claim 1, characterized in that: The anti-slip portion (210) comprises a first plate surface (201) and a second plate surface arranged in opposite directions, wherein the first plate surface (201) is a plane, and one end of the second plate surface is provided with the second inclined surface (2111); and / or, the anti-slip wall (212) is provided with a second anti-slip structure on the side facing the clamping groove (101).

7. The fixing fixture according to any one of claims 1 to 6, characterized in that: The fixing fixture further comprises a bolt (310) and a nut (320); a first connecting hole (1221) is provided on the first connecting portion (122); a second connecting hole (221) is provided on the second connecting portion (220); the bolt (310) is passed through the first connecting hole (1221) and the second connecting hole (221) and is connected to the nut (320).

8. The fixing fixture according to claim 7, characterized in that: An anti-loosening layer is provided on the threaded section of the bolt (310), and the anti-loosening layer is configured to limit the rotation of the nut (320) relative to the bolt (310).

9. The fixing fixture according to claim 7, characterized in that: The position of the second inclined surface (2111) on the first inclined surface (121) along the inclination direction of the first inclined surface (121) is adjustable, and the opening axis of the first connecting hole (1221) and the opening axis of the second connecting hole (221) are both parallel to the inclination direction of the first inclined surface (121).

10. A fiber optic sensing monitoring system, characterized in that: include: Monitor host; A sensing optical cable (20) is connected to the monitoring host optical signal; as well as The fixing fixture according to any one of claims 1 to 9, wherein the fixing fixture is used to fix the sensing optical cable (20) to the frame (10).

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