Optical fiber detection dimming table for tunnel detection

Abstract

The utility model provides an optical fiber detection dimming table for tunnel detection, and mainly relates to the technical field of optical fiber detection equipment. An optical fiber detection dimming table for tunnel detection comprises a base and an optical fiber, a sliding groove is formed in the top of the base, a shell is fixedly arranged at the position, close to the left end of the sliding groove, of the top of the base, a reflective mirror is arranged at the top of the shell in a matched mode, and a rotating shaft is arranged on the front face of the shell in a matched mode and drives the reflective mirror to rotate. The optical fiber is clamped and fixed through the clamping assembly, and a transmission assembly is arranged in the base in a matched mode and drives the supporting base to move. The beneficial effects of the utility model lie in that the optical fiber is rapidly clamped and fixed through the clamping assembly, so that the optical fiber can be prevented from rotating in the clamping assembly, the detection precision is improved, and the use of different optical fibers is satisfied; the rotating shaft drives the reflector to rotate to achieve angle change, the gear shaft is rotated to drive the supporting base to move horizontally, and the distance between the optical fiber and the reflector is adjusted.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of optical fiber detection equipment, in particular to an optical fiber detection dimming station for tunnel detection. Background Art

[0002] Excessive settlement and deformation of subway tunnels is a common symptom of subway tunnel projects, especially in coastal and riverside soft soil areas or areas where soft and hard strata are interlaced. If not discovered or warned in time, it is likely to induce safety accidents such as running shaking and collision, trucks in the tunnel, and parking due to poor power supply. When using optical fiber to detect tunnel settlement, the optical fiber needs to be checked in advance to prevent the optical fiber from having fault points that affect the tunnel detection accuracy.

[0003] Some existing dimming devices are mainly adjusted manually by personnel during dimming, which is inefficient. During the adjustment process, the optical fiber is easy to loosen, resulting in inaccurate adjustment results. To this end, we provide a fiber optic detection dimming station for tunnel detection to solve the above problems. Utility Model Content

[0004] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0005] A fiber optic detection dimming console for tunnel detection comprises a base and an optical fiber. A slide groove is provided on the top of the base, a shell is fixedly arranged on the top of the base near the left end of the slide groove, a reflector is arranged on the top of the shell, a rotating shaft is arranged on the front of the shell, and the rotating shaft drives the reflector to rotate, a support seat is arranged inside the slide groove, a clamping assembly is fixed on the top of the support seat, the optical fiber is clamped and fixed by the clamping assembly, and a transmission assembly is arranged inside the base, and the transmission assembly drives the support seat to move.

[0006] The clamping assembly includes a clamping seat, a pressure plate, and a spring sheet. The clamping seat is fixed on the top of the support seat. One end of the pressure plate is hinged to the top of the clamping seat and the other end is fixedly connected by bolts. The spring sheet is fixedly connected to the inner ring of the pressure plate, and the outer ring of the optical fiber abuts against the spring sheet and the top of the clamping seat.

[0007] The transmission assembly includes a screw and a gear shaft. One end of the screw is rotatably connected to the right side surface of the shell and the other end is rotatably connected to the top protrusion of the base. The screw passes through the support seat. The outer ring of the screw is fixedly provided with a first worm gear near the right end. The gear shaft passes through the front side of the base and is rotatably connected. The outer ring of the gear shaft is fixedly provided with a first worm, and the first worm is meshingly connected with the first worm gear.

[0008] A connecting rod is fixedly arranged at the bottom of the reflector, a second worm gear is fixedly arranged at the outer ring of the connecting rod and passes through the top of the housing, a second worm is fixedly arranged at the outer ring of the rotating shaft, and the second worm is meshingly connected with the second worm gear.

[0009] Hand wheels are fixedly arranged at the ends of the rotating shaft and the gear shaft.

[0010] The top of the shell is symmetrically and fixedly provided with a card slot, and the interior of the card slot is clamped with a shading plate.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model has a simple structure and is easy to install and use. The optical fiber can be quickly clamped and fixed by a clamping assembly, and the installation is convenient and labor-saving. It can prevent the optical fiber from rotating in the clamping assembly, improve the detection accuracy, meet the use of different optical fibers, and improve applicability. The angle can be changed by driving the reflector to rotate by a rotating shaft, and the support seat can be driven to move horizontally by rotating the gear shaft to adjust the distance between the optical fiber and the reflector, so that the parameters of the power meter can reach the maximum value, thereby improving the efficiency of dimming and saving manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Attached Figure 1 This is a schematic diagram of the structure of the utility model from the first perspective;

[0014] Attached Figure 2 This is a schematic diagram of the structure of the utility model from a second viewing angle;

[0015] Attached Figure 3 It is a partial cross-sectional structural schematic diagram of the utility model;

[0016] Attached Figure 4 It is a structural schematic diagram of the support seat and the clamping assembly of the utility model.

[0017] Numbers shown in the accompanying drawings: 1, base; 101, slide groove; 2, optical fiber; 3, shell; 301, slot; 4, reflector; 401, connecting rod; 5, rotating shaft; 6, supporting seat; 7, clamping assembly; 701, clamping seat; 702, pressure plate; 703, spring sheet; 8, transmission assembly; 801, screw; 802, gear shaft; 9, condenser; 10, hand wheel; 11, sunshade. DETAILED DESCRIPTION

[0018] The utility model is further described in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the utility model and are not used to limit the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by this application.

[0019] In conjunction with the accompanying drawings, a fiber optic detection dimming console for tunnel detection includes a base 1 and an optical fiber 2. A slide groove 101 is provided on the top of the base 1. A shell 3 is fixedly arranged on the top of the base 1 near the left end of the slide groove 101. A reflector 4 is arranged on the top of the shell 3. A rotating shaft 5 is arranged on the front of the shell 3. The rotating shaft 5 drives the reflector 4 to rotate. A support seat 6 is arranged inside the slide groove 101. A clamping assembly 7 is fixed on the top of the support seat 6. The optical fiber 2 is clamped and fixed by the clamping assembly 7. A transmission assembly 8 is arranged inside the base 1. The transmission assembly 8 drives the support seat 6 to move.

[0020] The clamping assembly 7 includes a clamping seat 701, a pressure plate 702, and a spring sheet 703. The spring sheet 703 is arranged in an arc shape. The clamping seat 701 is fixed on the top of the support seat 6. One end of the pressure plate 702 is hinged to the top of the clamping seat 701 and the other end is fixedly connected by bolts. The spring sheet 703 is fixedly connected to the inner circle of the pressure plate 702. The outer circle of the optical fiber 2 abuts against the spring sheet 703 and the top of the clamping seat 701. An arc groove is provided on the top of the clamping seat 701.

[0021] The transmission assembly 8 includes a screw 801 and a gear shaft 802. One end of the screw 801 is rotatably connected to the right side surface of the shell 3 and the other end is rotatably connected to the top protrusion of the base 1. The screw 801 passes through the support seat 6. The screw 801 is located directly above the slide slot 101. A first worm gear is fixedly set on the outer ring of the screw 801 near the right end. The gear shaft 802 passes through the front side of the base 1 and is rotatably connected. A first worm is fixedly set on the outer ring of the gear shaft 802. The first worm is meshed with the first worm wheel. The rotation of the gear shaft 802 drives the screw 801 to rotate and then drives the support seat 6 to move.

[0022] A condenser 9 is fixedly disposed at one end of the support seat 6 close to the reflector 4 , and the condenser 9 , the reflector 4 , and the optical fiber 2 are coaxially disposed.

[0023] A connecting rod 401 is fixedly provided at the bottom of the reflector 4, a second worm gear is fixedly provided at the outer ring of the connecting rod 401 and passes through the top of the housing 3, a second worm is fixedly provided at the outer ring of the rotating shaft 5, the second worm gear is meshedly connected with the second worm gear, and the rotating shaft 5 rotates to drive the reflector 4 to rotate.

[0024] Hand wheels 10 are fixedly arranged at the ends of the rotating shaft 5 and the gear shaft 802 .

[0025] A slot 301 is symmetrically fixedly disposed on the top of the housing 3 , and the sunshade 11 is clamped inside the slot 301 .

[0026] The device is externally fixed with an optical fiber coupler, a power meter, a controller, a light source and other optical fiber testing components.

[0027] When the device is in use, the left end of the optical fiber 2 is fixed by the tightening component 7, and the right end of the optical fiber 2 is connected to the test elements such as the light source and the power meter. The light source of the light source is started to shine on the reflector 4 through the optical fiber 2 through the condenser 9, and the angle of the reflector 4 can be adjusted by rotating the rotating shaft 5. The reflector 4 reflects a part of the light source and transmits it to the power meter through the optical fiber 2. The angle of the reflector 4 is adjusted according to the parameters of the power meter, and the screw 801 is rotated to drive the support seat 6 to move along the inner wall of the slide groove 101, so as to detect the light source reflected by the optical fiber according to the change of the angle of the reflector 4 and the change of the distance.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An optical fiber detection dimming station for tunnel detection, comprising a base (1) and an optical fiber (2), characterized in that: A slide groove (101) is provided on the top of the base (1); a shell (3) is fixedly arranged on the top of the base (1) near the left end of the slide groove (101); a reflector (4) is arranged on the top of the shell (3); a rotating shaft (5) is arranged on the front of the shell (3); the rotating shaft (5) drives the reflector (4) to rotate; a support seat (6) is arranged inside the slide groove (101); a clamping assembly (7) is fixed on the top of the support seat (6); the optical fiber (2) is clamped and fixed by the clamping assembly (7); a transmission assembly (8) is arranged inside the base (1); the transmission assembly (8) drives the support seat (6) to move; The clamping assembly (7) comprises a clamping seat (701), a pressure plate (702), and a spring sheet (703); the clamping seat (701) is fixed on the top of the support seat (6); one end of the pressure plate (702) is hinged to the top of the clamping seat (701) and the other end is fixedly connected by bolts; the spring sheet (703) is fixedly connected to the inner ring of the pressure plate (702); the outer ring of the optical fiber (2) is in contact with the spring sheet (703) and the top of the clamping seat (701).

2. The optical fiber detection dimming station for tunnel detection according to claim 1, characterized in that: The transmission assembly (8) comprises a screw (801) and a gear shaft (802); one end of the screw (801) is rotatably connected to the right side surface of the housing (3) and the other end is rotatably connected to the top protrusion of the base (1); the screw (801) passes through the support seat (6); a first worm gear is fixedly arranged on the outer ring of the screw (801) near the right end; the gear shaft (802) passes through the front side of the base (1) and is rotatably connected; a first worm is fixedly arranged on the outer ring of the gear shaft (802); and the first worm is meshingly connected to the first worm gear.

3. The optical fiber detection dimming station for tunnel detection according to claim 1, characterized in that: A condenser mirror (9) is fixedly arranged at one end of the support seat (6) close to the reflector (4).

4. The optical fiber detection dimming station for tunnel detection according to claim 1, characterized in that: A connecting rod (401) is fixedly arranged at the bottom of the reflector (4), a second worm gear is fixedly arranged on the outer ring of the connecting rod (401) and passes through the top of the housing (3), a second worm is fixedly arranged on the outer ring of the rotating shaft (5), and the second worm gear is meshingly connected with the second worm gear.

5. The optical fiber detection dimming station for tunnel detection according to claim 1, characterized in that: Hand wheels (10) are fixedly arranged at the ends of the rotating shaft (5) and the gear shaft (802).

6. The optical fiber detection dimming station for tunnel detection according to claim 1, characterized in that: A card slot (301) is symmetrically fixedly arranged on the top of the housing (3), and the light shielding plate (11) is clamped inside the card slot (301).

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