Optical fiber detection dimming table for tunnel detection

By designing an optical fiber testing dimming stage and utilizing structures such as sliding and rotating components, the problem of insufficient adaptability during optical fiber fixing was solved. This enabled stable clamping and angle adjustment of small-sized optical fibers, reducing operational complexity and maintenance costs, and improving the accuracy and convenience of testing.

CN224262779UActive Publication Date: 2026-05-19GUILIN HENGCHENG ENG QUALITY TESTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUILIN HENGCHENG ENG QUALITY TESTING CO LTD
Filing Date
2025-07-03
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing dimming devices have insufficient adaptability during fiber fixing, especially for small-sized fibers, which are prone to detection failure due to fiber displacement. This necessitates frequent replacement of dedicated fixing devices, significantly increasing operational complexity and equipment maintenance costs.

Method used

A fiber optic testing and dimming stage was designed, comprising a base, a first mounting platform, a second mounting platform, a reflector, and a clamping plate. By incorporating sliding components, rotating components, and springs, the stage achieves stable clamping and angle adjustment of the optical fiber, reducing the risk of fiber damage caused by improper human operation.

Benefits of technology

It achieves stable clamping of optical fibers of different sizes, reduces operational complexity and equipment maintenance costs, and improves the accuracy and convenience of testing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an optical fiber detection dimming table for tunnel detection, which comprises a base, a first mounting table, a second mounting table, a reflective mirror and a clamping plate, the top of the second mounting table is provided with a first sliding chute, the bottom of the clamping plate is fixedly connected with a first sliding block, and the first sliding block is in sliding connection with the first sliding chute. According to the utility model, through the arrangement of the first sliding groove and the first sliding block, an optical fiber is placed at the top of the second mounting table when the optical fiber is detected, and then the clamping plates drive the first sliding block to move in the first sliding groove, so that the two groups of clamping plates approach and fit the optical fiber to complete fixation; the problem that an existing dimming device is insufficient in adaptability in the optical fiber fixing process is solved, and particularly the problems that it is difficult to stably clamp a small-size optical fiber, detection fails easily due to optical fiber displacement, a special fixing device needs to be replaced frequently, and the operation complexity and the equipment maintenance cost are remarkably increased are solved.
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Description

Technical Field

[0001] This utility model relates to the field of optical fiber detection technology, specifically to an optical fiber detection dimming station for tunnel detection. Background Technology

[0002] Excessive settlement and deformation in subway tunnels is a common problem in subway tunnel engineering, especially in soft soil areas along the coast and rivers or in areas where soft and hard strata are mixed. If it is not detected or warned in time, it may induce safety accidents such as shaking and impact during operation, trucks inside the tunnel, and shutdown due to poor power supply. When using fiber optics to detect tunnel settlement, the fiber optics need to be inspected beforehand to prevent fiber optic failure from affecting the accuracy of tunnel detection.

[0003] Existing dimming devices have insufficient adaptability during fiber fixing, especially for small-sized fibers, which are prone to detection failure due to fiber displacement. This necessitates frequent replacement of dedicated fixing devices, significantly increasing operational complexity and equipment maintenance costs. Utility Model Content

[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide a fiber optic detection dimming station for tunnel inspection, which has the advantages of fiber optic adjustment and fixation. It solves the problem of insufficient adaptability of existing dimming devices in the process of fiber optic fixation, especially the difficulty in achieving stable clamping of small-sized fibers, which easily leads to detection failure due to fiber displacement, requiring frequent replacement of special fixing devices, and significantly increasing the complexity of operation and equipment maintenance costs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fiber optic detection dimming station for tunnel inspection, comprising a base, a first mounting platform, a second mounting platform, a reflector, and a clamping plate. The first mounting platform is fixedly connected to the left side of the top of the base, and the second mounting platform is movably connected to the right side of the top of the base. The reflector is disposed on the top of the first mounting platform, and the clamping plates are disposed on both sides of the top of the second mounting platform. A first sliding groove is provided on the top of the second mounting platform, and a first slider is fixedly connected to the bottom of the clamping plate. The first slider is slidably connected to the first sliding groove. A sliding assembly is provided on the top of the base, and a rotating assembly is provided on the top of the first mounting platform.

[0006] In a preferred embodiment of the present invention, the sliding assembly includes a second slider and a second slide groove. The second slide groove is located on the right side of the top of the base. The second slider is fixedly connected to the bottom of the base and is slidably connected to the second slide groove. A driving component is provided on the right side of the base.

[0007] In a preferred embodiment of this invention, the driving component includes a support block, a motor, and a screw. The support block is fixedly connected to the bottom right side of the base, the motor is fixedly connected to the top of the support block, the screw is fixedly connected to the output end of the motor, and the screw is threadedly connected to the second slider.

[0008] In a preferred embodiment of this invention, the rotating assembly includes a turntable and an annular groove. The annular groove is formed on the top of the first mounting platform, the turntable is movably connected inside the annular groove, and the bottom of the reflector is fixedly connected to the top of the turntable.

[0009] As a preferred embodiment of the present invention, springs are fixedly connected to both sides of the first groove and are arranged symmetrically, and the other end of the spring is fixedly connected to the outer side of the first slider.

[0010] In a preferred embodiment of this utility model, slide rods are fixedly connected to both sides inside the first slide groove, the first slider is sleeved on the surface of the slide rod, the spring is sleeved on the surface of the slide rod, and a protective pad is fixedly connected to the inner side of the clamping plate.

[0011] As a preferred embodiment of this utility model, a fixing plate is fixedly connected to the left side of the top of the first mounting platform, and a light-shielding plate is fixedly connected to the right side of the fixing plate, with the reflector located inside the light-shielding plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model, by setting a first sliding groove and a first slider, places the optical fiber on the top of the second mounting platform during optical fiber testing. Then, the clamping plate drives the first slider to move inside the first sliding groove, thereby bringing the two sets of clamping plates closer to the optical fiber and fixing it. This solves the problem of insufficient adaptability of existing dimming devices in the process of fixing optical fibers, especially the difficulty in achieving stable clamping of small-sized optical fibers. The fiber displacement can easily lead to detection failure, requiring frequent replacement of special fixing devices, which significantly increases the complexity of operation and equipment maintenance costs. This invention has the advantages of optical fiber adjustment and fixing.

[0014] 2. This utility model, by setting a sliding component, allows the second mounting platform to drive the second slider to slide within the second groove after the clamping plate fixes the optical fiber. Since the second slider is fixedly connected to the bottom of the second mounting platform, the second mounting platform can then move left and right on the top right side of the base. This allows the movement distance and position of the second mounting platform to be adjusted according to the actual situation of the optical fiber, so that it can cooperate with the first mounting platform to meet the testing needs of different optical fibers. Furthermore, by setting a driving component, a motor is started on the top of the support block, causing the motor to drive the screw to rotate. Since the screw is threadedly connected to the second slider, the second slider will move along the screw under the rotation of the screw, thereby driving the second mounting platform to move on the base. Thus, the rotation of the screw can control the movement and adjustment of the second mounting platform.

[0015] 3. This utility model, by setting a rotating component, allows the operator to manually rotate the reflector when adjusting the light angle during fiber optic testing. The turntable fixedly connected to the bottom of the reflector rotates within the annular groove, causing the reflector to rotate. This rotation changes the direction of light reflection, ensuring the light hits the fiber at a suitable angle, meeting the light angle requirements in different fiber optic testing scenarios. Furthermore, by setting a spring, when the fiber is placed between the clamping plates on the top of the second mounting platform, the clamping plates are pushed, causing the first slider to slide within the first groove and compress the spring. Once the fiber is in place, the spring force pushes the first slider to move, causing the clamping plates to automatically reset and clamp the fiber. This spring force assists in the movement of the clamping plates, making operation easier and more convenient, and reducing the risk of fiber damage due to improper human operation. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional exploded view of the rotating component of this utility model;

[0018] Figure 3 This is a schematic diagram of the three-dimensional exploded structure of the first slider of this utility model.

[0019] In the diagram: 1. Base; 2. First mounting platform; 3. Second mounting platform; 4. Reflector; 5. Clamping plate; 6. First slide groove; 7. First slider; 8. Sliding assembly; 81. Second slider; 82. Second slide groove; 83. Drive component; 831. Support block; 832. Motor; 833. Screw; 9. Rotating assembly; 91. Turntable; 92. Annular groove; 10. Spring; 11. Slide rod; 12. Protective pad; 13. Light shield; 14. Fixing plate. Detailed Implementation

[0020] 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.

[0021] like Figures 1 to 3 As shown, the present invention provides a fiber optic detection dimming station for tunnel inspection, comprising a base 1, a first mounting platform 2, a second mounting platform 3, a reflector 4, and a clamping plate 5. The first mounting platform 2 is fixedly connected to the left side of the top of the base 1, and the second mounting platform 3 is movably connected to the right side of the top of the base 1. The reflector 4 is disposed on the top of the first mounting platform 2, and the clamping plates 5 are disposed on both sides of the top of the second mounting platform 3. A first sliding groove 6 is provided on the top of the second mounting platform 3, and a first slider 7 is fixedly connected to the bottom of the clamping plate 5. The first slider 7 is slidably connected to the first sliding groove 6. A sliding component 8 is provided on the top of the base 1, and a rotating component 9 is provided on the top of the first mounting platform 2.

[0022] refer to Figure 1 The sliding component 8 includes a second slider 81 and a second slide groove 82. The second slide groove 82 is opened on the right side of the top of the base 1. The second slider 81 is fixedly connected to the bottom of the base 1. The second slider 81 is slidably connected to the second slide groove 82. A driving component 83 is provided on the right side of the base 1.

[0023] As a technical optimization of this utility model, by setting a sliding component 8, after the clamping plate 5 fixes the optical fiber, the second mounting platform 3 drives the second slider 81 to slide in the second sliding groove 82. Since the second slider 81 is fixedly connected to the bottom of the second mounting platform 3, the second mounting platform 3 moves left and right on the top right side of the base 1. Thus, the movement distance and position of the second mounting platform 3 can be adjusted according to the actual situation of the optical fiber to cooperate with the first mounting platform 2 and meet the needs of different optical fiber testing.

[0024] refer to Figure 1 The drive component 83 includes a support block 831, a motor 832, and a screw 833. The support block 831 is fixedly connected to the bottom right side of the base 1, the motor 832 is fixedly connected to the top of the support block 831, and the screw 833 is fixedly connected to the output end of the motor 832. The screw 833 is threadedly connected to the second slider 81.

[0025] As a technical optimization of this utility model, by setting a driving component 83, a motor 832 is started on the top of the support block 831, so that the motor 832 drives the screw 833 to rotate. Since the screw 833 is threadedly connected to the second slider 81, the second slider 81 will move along the screw 833 under the rotation of the screw 833, thereby driving the second mounting platform 3 to move on the base 1, so that the rotation of the screw 833 can control the movement and adjustment of the second mounting platform 3.

[0026] refer to Figure 2 The rotating assembly 9 includes a turntable 91 and an annular groove 92. The annular groove 92 is formed on the top of the first mounting platform 2. The turntable 91 is movably connected inside the annular groove 92. The bottom of the reflector 4 is fixedly connected to the top of the turntable 91.

[0027] As a technical optimization of this utility model, by setting the rotating component 9, if the light angle needs to be adjusted during fiber optic testing, the operator can manually rotate the reflector 4. The turntable 91 fixedly connected to the bottom of the reflector 4 will rotate in the annular groove 92, thereby driving the reflector 4 to rotate. Thus, by rotating the reflector 4, the reflection direction of the light can be changed, so that the light shines on the fiber at a suitable angle, meeting the requirements of the light angle in different fiber optic testing scenarios.

[0028] refer to Figure 3 Springs 10 are fixedly connected to both sides of the first slide groove 6 and are arranged symmetrically. The other end of the spring 10 is fixedly connected to the outside of the first slider 7.

[0029] As a technical optimization of this utility model, by setting a spring 10, when the optical fiber is placed between the clamping plates 5 on the top of the second mounting platform 3, the clamping plates 5 are pushed, causing the first slider 7 to slide in the first slide groove 6 and compress the spring 10. After the optical fiber is placed in place, the elastic force of the spring 10 pushes the first slider 7 to move, and then the clamping plate 5 automatically resets and clamps the optical fiber. Thus, the elastic force of the spring 10 can assist the movement of the clamping plate 5, making the operation easier and more convenient, and reducing the risk of damage to the optical fiber due to improper human operation.

[0030] refer to Figure 3 The first slide groove 6 has slide rods 11 fixedly connected to both sides inside, the first slider 7 is sleeved on the surface of the slide rod 11, the spring 10 is sleeved on the surface of the slide rod 11, and the inner side of the clamping plate 5 is fixedly connected to the protective pad 12.

[0031] As a technical optimization of this utility model, by setting a sliding rod 11 and a protective pad 12, during the process of the clamping plate 5 sliding in the first sliding groove 6 via the first slider 7, the first slider 7 is sleeved on the surface of the sliding rod 11 and slides along the sliding rod 11, so that the sliding rod 11 guides the first slider 7, and then the sliding rod 11 can prevent the spring 10 from twisting and deforming, ensuring the stability of the spring force of the spring 10, thereby extending the service life of the spring 10. At the same time, the protective pad 12 replaces the clamping plate 5 to contact the optical fiber, and then the protective pad 12 can protect the optical fiber when it is in contact with and fixed.

[0032] refer to Figure 2 A fixing plate 14 is fixedly connected to the left side of the top of the first mounting platform 2, and a light shield 13 is fixedly connected to the right side of the fixing plate 14. The reflector 4 is located inside the light shield 13.

[0033] As a technical optimization of this utility model, by setting a fixing plate 14 and a light shield 13, during the fiber optic detection process, external light may shine into the detection area and affect the detection results. The light shield 13 on the right side of the fixing plate 14 blocks the stray light from the outside, so that only the light adjusted by the reflector 4 shines on the fiber optic in the detection area, thereby ensuring the singleness and accuracy of the detection light, and at the same time providing protection for the reflector 4 and reducing the influence of external factors on the reflector 4.

[0034] The working principle and usage process of this utility model are as follows: During fiber optic testing, when the optical fiber is placed between the top clamping plates 5 of the second mounting platform 3, the clamping plates 5 are pushed, causing the first slider 7 to slide within the first groove 6 and compress the spring 10. After the optical fiber is in place, the spring force of the spring 10 pushes the first slider 7 to move, causing the clamping plates 5 to automatically reset and clamp the optical fiber. At the same time, the protective pad 12 replaces the clamping plates 5 to contact the optical fiber, thus protecting it during contact and fixation. After the clamping plates 5 fix the optical fiber, the motor 832 is started on the top of the support block 831, causing the motor 832 to drive the screw 833 to rotate. Since the screw 833 is threadedly connected to the second slider 81, the second slider 81 will move along the screw 833 under the rotation of the screw 833, thereby driving the second mounting plate 3 to rotate. The platform 3 moves on the base 1, thereby rotating the screw 833 to control the movement and adjustment of the second mounting platform 3. At the same time, when performing fiber optic testing, if it is necessary to adjust the light angle, the operator can manually rotate the reflector 4. The turntable 91 fixedly connected to the bottom of the reflector 4 will rotate in the annular groove 92, driving the reflector 4 to rotate. By rotating the reflector 4, the reflection direction of the light can be changed, so that the light shines on the fiber at a suitable angle, meeting the requirements of the light angle in different fiber optic testing scenarios. Finally, during the fiber optic testing process, external light may shine into the testing area and affect the testing results. The light shield 13 on the right side of the fixed plate 14 blocks the stray light from the outside, so that only the light adjusted by the reflector 4 shines on the fiber in the testing area, thereby ensuring the singularity and accuracy of the testing light. Thus, it has the advantages of fiber optic adjustment and fixation.

[0035] In summary, this optical fiber detection dimming station for tunnel inspection, by setting a first sliding groove 6 and a first slider 7, places the optical fiber on top of the second mounting platform 3 during optical fiber detection. Then, the clamping plate 5 drives the first slider 7 to move inside the first sliding groove 6, thereby bringing the two sets of clamping plates 5 closer to the optical fiber and fixing it. This solves the problem of insufficient adaptability of existing dimming devices in the process of fixing optical fibers, especially the difficulty in achieving stable clamping of small-sized optical fibers, the easy failure of detection due to optical fiber displacement, the need for frequent replacement of special fixing devices, and the significant increase in operation complexity and equipment maintenance costs.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fiber optic detection dimming station for tunnel inspection, comprising a base (1), a first mounting platform (2), a second mounting platform (3), a reflector (4), and a clamping plate (5), characterized in that: The first mounting platform (2) is fixedly connected to the left side of the top of the base (1), and the second mounting platform (3) is movably connected to the right side of the top of the base (1). The reflector (4) is set on the top of the first mounting platform (2), and the clamping plates (5) are all set on both sides of the top of the second mounting platform (3). The top of the second mounting platform (3) is provided with a first sliding groove (6), and the bottom of the clamping plate (5) is fixedly connected with a first slider (7). The first slider (7) is slidably connected to the first sliding groove (6). The top of the base (1) is provided with a sliding component (8), and the top of the first mounting platform (2) is provided with a rotating component (9).

2. The fiber optic detection dimming station for tunnel inspection according to claim 1, characterized in that: The sliding assembly (8) includes a second slider (81) and a second slide groove (82). The second slide groove (82) is opened on the right side of the top of the base (1). The second slider (81) is fixedly connected to the bottom of the base (1). The second slider (81) is slidably connected to the second slide groove (82). A driving component (83) is provided on the right side of the base (1).

3. The fiber optic detection dimming station for tunnel inspection according to claim 2, characterized in that: The driving component (83) includes a support block (831), a motor (832), and a screw (833). The support block (831) is fixedly connected to the bottom right side of the base (1). The motor (832) is fixedly connected to the top of the support block (831). The screw (833) is fixedly connected to the output end of the motor (832). The screw (833) is threadedly connected to the second slider (81).

4. The fiber optic detection dimming station for tunnel inspection according to claim 1, characterized in that: The rotating assembly (9) includes a turntable (91) and an annular groove (92). The annular groove (92) is formed on the top of the first mounting platform (2). The turntable (91) is movably connected inside the annular groove (92). The bottom of the reflector (4) is fixedly connected to the top of the turntable (91).

5. The fiber optic detection dimming station for tunnel inspection according to claim 1, characterized in that: Springs (10) are fixedly connected to both sides of the first slide groove (6) and are arranged symmetrically. The other end of the spring (10) is fixedly connected to the outside of the first slider (7).

6. The fiber optic detection dimming station for tunnel inspection according to claim 5, characterized in that: The first slide groove (6) has slide rods (11) fixedly connected to both sides inside. The first slider (7) is sleeved on the surface of the slide rod (11). The spring (10) is sleeved on the surface of the slide rod (11). The inner side of the clamping plate (5) is fixedly connected to a protective pad (12).

7. The fiber optic detection dimming station for tunnel inspection according to claim 1, characterized in that: A fixing plate (14) is fixedly connected to the left side of the top of the first mounting platform (2), and a light shield (13) is fixedly connected to the right side of the fixing plate (14). The reflector (4) is located inside the light shield (13).