Fiber bragg grating anchor rod testing device

Abstract

The utility model belongs to the technical field of fiber bragg gratings, and particularly relates to a fiber bragg grating anchor rod testing device which comprises a fiber bragg grating anchor rod testing device body and further comprises a holding portion, the holding portion comprises a fixing cylinder, a telescopic column is slidably connected in the fixing cylinder, a plurality of fixing grooves are longitudinally and evenly formed in the outer wall of the telescopic column, and the fixing grooves are communicated with the fixing cylinder. A fixing mechanism matched with the fixing groove is arranged on the outer wall of the fixing cylinder and used for fixing the telescopic column. Wherein the top end of the telescopic column is fixedly connected with the lower surface of the fiber bragg grating anchor rod testing device body. The structure is simple, and the length of the holding part can be conveniently adjusted.

Description

Technical Field

[0001] The utility model belongs to the technical field of optical fiber grating, and in particular relates to an optical fiber grating anchor rod testing device. Background Art

[0002] Fiber Bragg Grating (FBG) is a diffraction grating formed by periodically modulating the refractive index of the fiber core in an axial direction through a certain method. It is a passive filter device. Since grating fiber has the advantages of small size, small fusion loss, full compatibility with optical fiber, and the ability to embed smart materials, and its resonant wavelength is sensitive to changes in the external environment such as temperature, strain, refractive index, and concentration, it has been widely used in the production of fiber lasers, fiber optic communications, and sensing fields.

[0003] Chinese utility model patent CN218270796U discloses a fiber optic Bragg grating anchor rod testing device, which includes: a fixed cylinder, the upper end of which is fixedly connected to the fiber optic Bragg grating anchor rod testing device body, the lower end of which is slidably inserted with an extension column, the side wall of which is provided with a groove, the inner side wall of which is fixedly connected with a tooth plate, the outer wall of which is fixedly connected with a fixed cover, the side wall of which is provided with an opening located in the fixed cover and corresponding to the groove, the inner wall of which is fixedly connected with a bracket, the end of which is provided with a gear located in the groove and meshing with the tooth plate, the upper side wall of which is slidably inserted with an L-shaped rod, and the length of the holding part can be quickly adjusted through the cooperation between the L-shaped rod, the gear and the tooth plate, which is convenient and quick.

[0004] In the above technical solution, the adjustment of the length of the gripping part is achieved through the cooperation between the L-shaped rod, the gear and the toothed plate. However, the meshing of the L-shaped plate with the gear and the meshing of the gear with the toothed plate makes the structure too complicated and prone to jamming, resulting in the inability to adjust the length of the gripping part. Utility Model Content

[0005] The purpose of the utility model is to provide a fiber grating anchor rod testing device in view of the above-mentioned technical problems, which has a simple structure and can conveniently adjust the length of the holding part.

[0006] In view of this, the utility model provides a fiber Bragg grating anchor rod testing device, comprising: a fiber Bragg grating anchor rod testing device body, characterized in that it also includes: a holding portion, the holding portion comprising:

[0007] A fixed cylinder, wherein a telescopic column is slidably connected in the fixed cylinder, a plurality of fixing grooves are evenly opened in the longitudinal direction on the outer wall of the telescopic column, and a fixing mechanism matched with the fixing grooves is provided on the outer wall of the fixed cylinder, and the fixing mechanism is used to fix the telescopic column;

[0008] Wherein, the top end of the telescopic column is fixedly connected to the lower surface of the main body of the fiber optic Bragg grating anchor rod testing device.

[0009] In the above technical solution, further, the fixing mechanism includes:

[0010] A shell, the shell being horizontally arranged on the outer wall of the fixed cylinder;

[0011] A fixed block, the fixed block passes through the fixed cylinder and is matched with the fixed groove, the fixed block is provided with a fixed frame at one end away from the fixed groove, a slide is slidably connected in the fixed frame, a fixed column is provided at one end of the slide away from the fixed block, the fixed column passes through the fixed frame and one end of the shell is connected to a rotating shaft, and the other end of the rotating shaft is connected to a pull plate;

[0012] Wherein, the fixing block and the fixing frame are arranged in the shell.

[0013] In the technical solution, the fixing block is matched with the fixing slot, so that the height of the telescopic column sliding out of the fixing tube can be adjusted by inserting the fixing block into different fixing slots. When the length of the gripping part needs to be adjusted, by pulling the pull plate, the slide plate drives the fixing block to move away from the fixing tube, thereby disengaging the fixing block from the fixing slot, and moving the telescopic column downward or upward to conveniently adjust the length of the gripping part, better meeting the habits or needs of different users, thereby improving the practicality of the device, and achieving a simple structure and convenient adjustment of the length of the gripping part.

[0014] In the above technical solution, further, a handle is provided on the side of the pull plate away from the shell.

[0015] In the above technical solution, further, limit plates are provided on both sides of the pull plate, and limit blocks matched with the limit plates are provided at the upper and lower ends of the shell.

[0016] In the technical solution, the lifting handle rotates the pulling plate to support the limiting plate on the limiting block, so that the fixing block and the fixing groove can be disengaged, which can facilitate the folding of the telescopic column.

[0017] In the above technical solution, further, a rubber pad is fixedly connected to the side of the limit block away from the shell.

[0018] In the technical solution, the rubber pad has a certain anti-slip performance, thereby preventing the limiting plate from slipping off the limiting block.

[0019] In the above technical solution, further, moving blocks are provided at the upper and lower ends of the fixed frame, a spring is provided between the moving block and the shell, one end of the spring is connected to the inner wall of the shell, and the other end is connected to the moving block.

[0020] In the present technical solution, after moving the telescopic column upward or downward and adjusting it to an appropriate length, the handle is twisted to separate the limit plate from the limit block. Under the action of the spring, the fixed block can be automatically inserted into the fixed groove, thereby realizing rapid adjustment of the length of the holding part of the device, which is convenient and quick.

[0021] In the above technical solution, further, the outer walls of the telescopic column and the fixed cylinder are both provided with a rubber layer.

[0022] In the present technical solution, the outer walls of the fixing tube and the extension column are provided with a rubber layer, which increases the friction between the fixing tube and the extension column when the staff holds them, making the grip more firm and not easy to fall off.

[0023] The beneficial effects of the utility model are:

[0024] 1. The fixing block is matched with the fixing slot, so that the fixing block can be inserted into different fixing slots to adjust the height of the telescopic column sliding out of the fixing tube. When the length of the gripping part needs to be adjusted, the sliding plate is pulled, and the sliding plate drives the fixing block to move away from the fixing tube, thereby disengaging the fixing block from the fixing slot, and the telescopic column is moved downward or upward to conveniently adjust the length of the gripping part, so as to better meet the habits or needs of different users, thereby improving the practicality of the device and achieving a simple structure and convenient adjustment of the length of the gripping part.

[0025] 2. After moving the telescopic column upward or downward and adjusting it to the appropriate length, twist the handle to separate the limit plate from the limit block. Under the action of the spring, the fixed block can be automatically inserted into the fixed groove, realizing the rapid adjustment of the length of the holding part of the device, which is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a fiber grating anchor rod testing device of the utility model;

[0027] Figure 2 The utility model is a fiber grating anchor rod testing device Figure 1 Enlarged view of point A in the middle;

[0028] Figure 3 This is a cross-sectional view of a fiber grating anchor rod testing device of the utility model;

[0029] Figure 4 The utility model is a fiber grating anchor rod testing device Figure 3 Enlarged view of point B in the middle;

[0030] The marks in the figure indicate

[0031] 1. Fiber Bragg grating anchor rod test device body; 2. Grip; 3. Fixed tube; 4. Telescopic column; 5. Fixed groove; 6. Fixed mechanism; 7. Shell; 8. Fixed block; 9. Rotating shaft; 10. Pull plate; 11. Handle; 12. Limit block; 13. Rubber pad; 14. Limit plate; 15. Fixed column; 16. Fixed frame; 17. Slide plate; 18. Moving block; 19. Spring. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0033] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0034] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0035] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0036] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element limited by the sentence "including one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0037] Embodiment 1:

[0038] Depend on Figure 1-Figure 4 As shown, this embodiment provides a fiber grating anchor test device, including: a fiber grating anchor test device body 1 (the structure and principle of the fiber grating anchor test device body 1 have been disclosed in a fiber grating anchor test device disclosed in Chinese patent publication number CN211527434U, and the present technical solution will not be described in detail), and also includes: a holding portion 2, the holding portion 2 includes: a fixed tube 3, a telescopic column 4 is slidably connected to the fixed tube 3, a plurality of fixing grooves 5 are evenly opened on the outer wall of the telescopic column 4 in the longitudinal direction, a fixing mechanism 6 matched with the fixing grooves 5 is provided on the outer wall of the fixed tube 3, and the fixing mechanism 6 is used to fix the telescopic column 4; wherein, the top end of the telescopic column 4 is fixedly connected to the lower surface of the fiber grating anchor test device body 1.

[0039] In the above technical solution, further, the fixing mechanism 6 includes:

[0040] A shell 7, wherein the shell 7 is horizontally arranged on the outer wall of the fixed tube 3; a fixed block 8, wherein the fixed block 8 passes through the fixed tube 3 and is adapted to the fixed groove 5, wherein a fixed frame 16 is provided at one end of the fixed block 8 away from the fixed groove 5, wherein a slide plate 17 is slidably connected in the fixed frame 16, wherein a fixed column 15 is provided at one end of the slide plate 17 away from the fixed block 8, wherein the fixed column 15 passes through the fixed frame 16 and one end of the shell 7 and is connected to a rotating shaft 9, wherein a pull plate 10 is connected to the other end of the rotating shaft 9; wherein the fixed block 8 and the fixed frame 16 are arranged in the shell 7.

[0041] In the present technical solution, the fixing block 8 is matched with the fixing slot 5, so that the height of the telescopic column 4 sliding out of the fixing tube 3 can be adjusted by inserting the fixing block 8 into different fixing slots 5. When the length of the gripping portion 2 needs to be adjusted, the sliding plate 17 drives the fixing block 8 to move away from the fixing tube 3 by pulling the pull plate 10, so that the fixing block 8 is disengaged from the fixing slot 5, and the telescopic column 4 is moved downward or upward to conveniently adjust the length of the gripping portion 2, so as to better meet the habits or needs of different users, thereby improving the practicality of the device, and achieving a simple structure and convenient adjustment of the length of the gripping portion 2.

[0042] In the above technical solution, further, a handle is provided on the side of the pull plate 10 away from the shell 7, further, limit plates 14 are provided on both sides of the pull plate 10, and limit blocks 12 adapted to the limit plates 14 are provided at the upper and lower ends of the shell 7.

[0043] In this technical solution, the lifting handle 11 rotates the pulling plate 10 to support the limiting plate 14 on the limiting block 12, so that the fixing block 8 and the fixing groove 5 can be disengaged, which can facilitate the folding of the telescopic column 4.

[0044] In the above technical solution, further, a rubber pad 13 is fixedly connected to the side of the limit block 12 away from the shell 7 .

[0045] In the present technical solution, the rubber pad 13 has a certain anti-slip property, thereby preventing the limiting plate 14 from slipping off the limiting block 12 .

[0046] In the above technical solution, further, the fixing frame 16 is provided with moving blocks 18 at both ends, a spring 19 is provided between the moving block 18 and the shell 7 , one end of the spring 19 is connected to the inner wall of the shell 7 , and the other end is connected to the moving block 18 .

[0047] In the present technical solution, after moving the telescopic column 4 upward or downward and adjusting it to an appropriate length, the handle is twisted to separate the limit plate 14 from the limit block 12. Under the action of the spring 19, the fixed block 8 can be automatically inserted into the fixed groove 5, thereby realizing rapid adjustment of the length of the holding part 2 of the device, which is convenient and quick.

[0048] In the above technical solution, further, the outer walls of the telescopic column 4 and the fixed cylinder 3 are both provided with a rubber layer.

[0049] In the present technical solution, the outer walls of the fixing tube 3 and the extension column are provided with a rubber layer, which increases the friction between the fixing tube 3 and the extension column when the staff holds them, making the grip more firm and not easy to fall off.

[0050] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A fiber Bragg grating anchor testing device, comprising: The fiber grating anchor testing device body (1) is characterized by further comprising: a holding portion (2), wherein the holding portion (2) comprises: A fixed cylinder (3), a telescopic column (4) being slidably connected inside the fixed cylinder (3), a plurality of fixing grooves (5) being evenly arranged in the longitudinal direction on the outer wall of the telescopic column (4), a fixing mechanism (6) matching the fixing grooves (5) being provided on the outer wall of the fixed cylinder (3), the fixing mechanism (6) being used to fix the telescopic column (4); The fixing mechanism (6) comprises: A shell (7), wherein the shell (7) is horizontally arranged on the outer wall of the fixed cylinder (3); A fixed block (8), the fixed block (8) passing through the fixed cylinder (3) and being matched with the fixed groove (5), a fixed frame (16) being provided at one end of the fixed block (8) away from the fixed groove (5), a slide plate (17) being slidably connected inside the fixed frame (16), a fixed column (15) being provided at one end of the slide plate (17) away from the fixed block (8), one end of the fixed column (15) passing through the fixed frame (16) and the housing (7) being connected to a rotating shaft (9), and the other end of the rotating shaft (9) being connected to a pull plate (10); The fixing block (8) and the fixing frame (16) are arranged inside the housing (7). The top end of the telescopic column (4) is fixedly connected to the lower surface of the fiber optic Bragg grating anchor rod testing device body (1).

2. A fiber Bragg grating anchor testing device according to claim 1, characterized in that: The fixing frame (16) is provided with moving blocks (18) at the upper and lower ends, a spring (19) is provided between the moving block (18) and the shell (7), one end of the spring (19) is connected to the inner wall of the shell (7), and the other end is connected to the moving block (18).

3. A fiber Bragg grating anchor testing device according to claim 2, characterized in that: Limiting plates (14) are provided on both sides of the pull plate (10), and limiting blocks (12) matching the limiting plates (14) are provided at the upper and lower ends of the shell (7).

4. A fiber Bragg grating anchor testing device according to claim 3, characterized in that: A rubber pad (13) is fixedly connected to the side of the limit block (12) away from the housing (7).

5. The fiber Bragg grating anchor testing device according to claim 1, characterized in that: The outer walls of the telescopic column (4) and the fixed cylinder (3) are both provided with a rubber layer.

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