CN216158774U - Fixed connecting rod piece of fiber grating inclinometer and fiber grating inclinometer - Google Patents
Fixed connecting rod piece of fiber grating inclinometer and fiber grating inclinometer Download PDFInfo
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- CN216158774U CN216158774U CN202122179753.1U CN202122179753U CN216158774U CN 216158774 U CN216158774 U CN 216158774U CN 202122179753 U CN202122179753 U CN 202122179753U CN 216158774 U CN216158774 U CN 216158774U
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- rod piece
- fiber grating
- inclinometer
- fixing
- fixing device
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Abstract
The utility model belongs to the technical field of engineering sensing detection, and discloses a fiber grating inclinometer and a fixed connecting rod piece thereof.A main rod piece is provided with a placing disc and an annular fixing device, and is provided with a fiber penetrating hole; the main rod piece is connected with the extension rod through a loop bar, and a rod piece fixing device is fixed on the loop bar; the left side and the right side of the loop bar are respectively provided with an internal thread and an external thread; six threaded holes are formed in the rod piece fixing device, and the threaded holes are connected with screws in a screwing mode. The utility model has convenient installation and simple operation, fixes the rod piece through the threaded connection, and is firm; the base plate of the fixed inclinometer of the placing table and the bottle body are fixed by the annular fixing device, so that the dual fixation of the inclinometer is realized. Prevent the rocking and the skew of inclinometer, ensure the stability of inclinometer measurement engineering. The method has wide application range and is suitable for various engineering leveling test surfaces such as piers, wall surfaces and the like. The rod piece fixing device can ensure a better fitting test surface of the rod piece and ensure the accuracy of a test result.
Description
Technical Field
The utility model belongs to the technical field of engineering sensing detection, and particularly relates to a fixed connecting rod piece of a fiber grating inclinometer and a fiber grating inclinometer.
Background
At present, the fiber grating is a diffraction grating, which is a passive filter element formed by periodically modulating the fiber core by increasing the probability of refraction of the fiber core inside the fiber grating mainly through a certain method. Generally, fiber gratings have the characteristics of extremely small volume, good compatibility and intellectualization, and the loss of fusion welding is less than that of other elements when the fiber gratings are used, so the fiber gratings are widely applied to various engineering sensing fields.
The fiber grating inclinometer is generally applied to angle measurement in engineering at present, most of the fiber grating inclinometer is in a relatively harsh environment, and the fiber grating inclinometer and a measurement surface need to be kept horizontal or vertical, so that the requirements on the angle are strict in installation engineering, and the condition that the inclination angle of the fiber grating inclinometer is kept consistent with the measurement surface is an important prerequisite for accurate measurement of the inclinometer. It is therefore desirable to develop a stable and secure fixed connecting link. However, in the prior art, the fiber grating inclinometer is easy to move and generate deviation in the fixing process; and the combination mode among the rod pieces can not be flexibly adjusted according to the actual situation of the engineering test surface.
Through the above analysis, the problems and defects of the prior art are as follows: in the prior art, the fiber bragg grating inclinometer is easy to move and generate deviation in the fixing process; and the combination mode among the rod pieces can not be flexibly adjusted according to the actual situation of the engineering test surface.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, the utility model provides a fiber grating inclinometer and a fixed connecting rod piece thereof.
The utility model is realized in such a way that the fiber grating inclinometer fixing connecting rod piece is provided with a main rod piece;
the main rod piece is provided with a placing disc and an annular fixing device, and the main rod piece is provided with a fiber penetrating hole;
the main rod piece is connected with the extension rod through a loop bar, and a rod piece fixing device is fixed on the loop bar.
Furthermore, the left side and the right side of the loop bar are respectively provided with an internal thread and an external thread.
Furthermore, the rod piece fixing device is provided with six threaded holes, the threaded holes are screwed with screws, and the screws are fixed on the test surface.
Further, the rod fixing device includes a loop rod fixing member and a main rod fixing member.
Furthermore, the plane of the placing disc and the plane of the annular fixing device are perpendicular to the extending direction of the rod piece.
Furthermore, the main rod piece, the loop bar and the extension rod are hollow.
Further, the annular fixing device is provided with two fixing arms.
Further, the length of the extension rod is 0.5m or 1 m.
The utility model also aims to provide an application of the fiber grating inclinometer fixing connecting rod piece in engineering sensing detection.
The utility model also aims to provide a fiber grating inclinometer fixed by utilizing the fiber grating inclinometer fixing connecting rod piece.
By combining all the technical schemes, the utility model has the advantages and positive effects that:
the utility model is used for fixing a special fiber grating inclinometer, prevents the fiber grating inclinometer from moving and generating deviation in the measurement process, and the rod piece can adjust the length to adapt to different engineering test surface types. Meanwhile, the installation and the use are convenient, the device can be tightly attached to an actual engineering test surface, and the combination mode among the rod pieces can be flexibly adjusted according to the actual condition of the engineering test surface. Meanwhile, the utility model has convenient installation and simple operation, and the rod piece is fixed by threaded connection, so the utility model is firm; the base plate of the fixed inclinometer of the placing table and the bottle body are fixed by the annular fixing device, so that the dual fixation of the inclinometer is realized. Prevent the rocking and the skew of inclinometer, ensure the stability of inclinometer measurement engineering. The utility model has wide application range and is suitable for various engineering flat test surfaces such as piers, wall surfaces and the like. The rod piece fixing device can ensure a better fitting test surface of the rod piece and ensure the accuracy of a test result.
The sleeve rod fixing piece and the main rod piece fixing piece are applicable to the rod piece with the sleeve rod, and the main rod piece fixing piece are applicable to the condition that only the main rod piece is provided. The fixing piece compresses the rod piece, and the rod piece is fixedly connected with the test surface through screws due to the threaded holes in the two sides of the rod piece.
The internal thread of the loop bar is used for connecting the external thread of the main bar piece or the extension bar piece, and the external thread of the loop bar is connected with the internal thread of the main bar piece or the extension bar piece.
According to the utility model, six threaded holes in the rod piece fixing device are locked by the screws, so that the rod piece can be well fixed on the test surface.
In the utility model, the planes of the placing disc and the annular fixing device are vertical to the extension direction of the rod piece, and after the inclinometer is fixed, the inclination angles of the engineering test surface and the fiber bragg grating can be kept consistent, thereby reducing the error of the experimental result.
The main rod piece, the sleeve rod and the extension rod are hollow inside and are used for penetrating through an optical fiber led out from a bottle opening of an inclinometer.
According to the utility model, two arms of the annular fixing device can rotate around the left thin rod and the right thin rod, the two arms are firstly opened to place the inclinometer in the installation process, the bottom of the inclinometer is placed on the placing disc, the two arms are folded, the wall surfaces of the two arms of the annular fixing device are attached to the inclinometer bottle body after the two arms are folded, and finally, the threads at the end parts of the two arms are fastened by using screw bolts to prevent the inclinometer from shaking and offsetting, so that the double fixing of the fiber grating inclinometer is completed.
The extension bar has two sizes of 0.5m and 1m, the inner diameter and the outer diameter and the thread parameters of the extension bar are the same as those of the main bar piece, the sleeve bar is connected by rotating the thread, the total length of the bar piece is changed, and the operation is convenient.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained from the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a fixed link member of a fiber grating inclinometer according to an embodiment of the utility model.
Fig. 2 is a front view of a fiber grating inclinometer fixing connecting link member according to an embodiment of the present invention.
Fig. 3 is a cross-sectional view of a fiber grating inclinometer fixing connecting rod piece at a sleeve rod after a rod piece is fixed according to an embodiment of the utility model.
In the figure: 1. a main bar member; 11. placing a tray; 12. an annular fixture; 13. fiber penetrating holes; 2. a loop bar; 21. an internal thread; 3. lengthening a rod; 31. an external thread; 4. a rod fixing device; 41. a loop bar fixing member; 42. A main rod fixture.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
In view of the problems in the prior art, the present invention provides a fiber grating inclinometer fixing connection rod, which is described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to fig. 3, the fiber grating inclinometer fixing connection rod member provided by the embodiment of the utility model is provided with a placing disc 11 and an annular fixing device 12 which are installed on a main rod member 1, and the main rod member 1 is provided with a fiber through hole 13; the main rod piece 1 is connected with the extension rod 3 through a loop bar 2, and a rod piece fixing device 4 is fixed on the loop bar 2.
The left side and the right side of the loop bar 2 are respectively provided with an internal thread and an external thread; six threaded holes are formed in the rod piece fixing device 4, threaded holes are connected with screws in a screwed mode, and the screws are fixed on the test surface. The rod fixing device 4 includes a loop bar fixing member 41 adapted to the rod with the loop bar 2 and a main rod member fixing member 42 adapted to the case of only the main rod member 1. The fixing piece compresses the rod piece, and the rod piece is fixedly connected with the test surface through screws due to the threaded holes in the two sides of the rod piece. The plane of the placing plate 11 and the annular fixing device 12 is vertical to the extending direction of the rod piece; the main rod piece 1, the loop bar 2 and the extension rod 3 are hollow inside, and the annular fixing device 12 is provided with two fixing arms. The extension bar 3 has two sizes of 0.5m and 1m, the inner diameter and the outer diameter and the thread parameters of the extension bar are the same as those of the main bar member 1, the sleeve bar 2 is connected through rotating threads, the total length of the bar member is changed, and the operation is convenient.
The technical solution of the present invention will be described in detail with reference to the following specific examples.
As shown in fig. 1, the fiber grating inclinometer fixing rod is centered on a main rod 1, a sleeve rod 2 and an extension rod 3 are used for connecting the rods and adjusting the length of the rod, an internal thread 22 of the sleeve rod 2 is used for connecting an external thread of the main rod 1 or the extension rod 3, and an external thread of the sleeve rod 2 is connected with an internal thread of the main rod 1 or the extension rod 3. An integral test piece can be combined by a plurality of main rod pieces, sleeve rods 2 and extension rods 3, the combination mode depends on the actual scale of the engineering test surface and corresponding test requirements, and the integral test piece can adapt to various types of engineering test surfaces. Six threaded holes in the rod fixing device 4 are locked by screws so that the rod can be well fixed on a test surface.
As shown in FIG. 2, the planes of the placing plate 11 and the annular fixing device 12 are perpendicular to the extension direction of the rod, and after the inclinometer is fixed, the inclination angles of the engineering test surface and the fiber bragg grating can be kept consistent, so that the error of the experimental result is reduced. The interior of each rod piece is hollow, and the optical fiber wires led out from the top of the fiber grating inclinometer enter the interior of the rod piece through the fiber penetrating hole 13 in the main rod piece 1, are led out from the end part of the rod piece through the whole rod piece and are connected with the fiber demodulation instrument. The optical fiber protection device can not only protect the optical fiber, but also reduce the influence of the external environment on the characteristics of the optical fiber.
As shown in figure 3, two arms of the annular fixing device 12 can rotate around the left thin rod and the right thin rod, the two arms are firstly opened to be placed into the inclinometer in the installation process, the bottom of the inclinometer is arranged on the placing disc 11, the two arms are folded, the wall surfaces of the two arms of the annular fixing device are attached to the inclinometer bottle body after the two arms are folded, finally, the threads at the end parts of the two arms are fastened through bolts and screws, the inclinometer is prevented from shaking and deviating, and therefore double fixing of the fiber grating inclinometer is completed.
The working principle of the utility model is as follows: the base of the fiber grating inclinometer is arranged on the placing disc 11, the annular fixing device 12 is screwed by screws at the opening to achieve the fixing effect of the bottle body of the inclinometer, and a fiber passing hole 13 is arranged above the fixing device and used for passing through an optical fiber led out from the bottle opening of the inclinometer. The left side and the right side of the loop bar are respectively provided with an internal thread and an external thread, the turning direction and the size of the loop bar correspond to the internal thread and the external thread of the extension bar and the main bar piece, the length of the loop bar is shorter, and the diameter of the loop bar is slightly larger than that of other bar pieces.
And determining the required length of the rod piece according to the actual condition of the measured engineering surface and the corresponding monitoring requirement, and connecting and disassembling the rod piece according to the required length. The selection of the rod piece fixing device depends on the maximum radius of the rod piece, and the optical fiber connection demodulator performs angle measurement after the rod piece is fixed.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The above description is only for the purpose of illustrating the present invention and the appended claims are not to be construed as limiting the scope of the utility model, which is intended to cover all modifications, equivalents and improvements that are within the spirit and scope of the utility model as defined by the appended claims.
Claims (9)
1. A fiber grating inclinometer fixing connection rod piece is characterized by being provided with:
a main bar member;
the main rod piece is provided with a placing disc and an annular fixing device, and the main rod piece is provided with a fiber penetrating hole;
the main rod piece is connected with the extension rod through a loop bar, and a rod piece fixing device is fixed on the loop bar.
2. The fiber grating inclinometer fixing connection rod member as claimed in claim 1, wherein said sleeve rod is provided with an internal thread and an external thread on each of the left and right sides.
3. The fiber grating inclinometer fixing connection rod piece as claimed in claim 1, wherein the rod piece fixing device is provided with six threaded holes, the threaded holes are screwed with screws, and the screws are fixed on the test surface.
4. The fiber grating inclinometer fixing coupling link member as claimed in claim 1, wherein said link member fixing means comprises a sleeve member fixing member and a main member fixing member.
5. The fiber grating inclinometer fixing link member as claimed in claim 1, wherein said rest plate and said annular fixing means are both in a plane perpendicular to the elongated direction of the member.
6. The fiber grating inclinometer fixing link member as claimed in claim 1, wherein said main member, sleeve member and extension member are hollow inside.
7. The fiber grating inclinometer fixing link member as claimed in claim 1, wherein said annular fixing means is provided with two fixing arms.
8. The fiber grating inclinometer fixing link member as claimed in claim 1, wherein said extension bar length is 0.5m or 1 m.
9. A fiber grating inclinometer fixed by the fiber grating inclinometer fixing connection rod piece according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122179753.1U CN216158774U (en) | 2021-09-09 | 2021-09-09 | Fixed connecting rod piece of fiber grating inclinometer and fiber grating inclinometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122179753.1U CN216158774U (en) | 2021-09-09 | 2021-09-09 | Fixed connecting rod piece of fiber grating inclinometer and fiber grating inclinometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216158774U true CN216158774U (en) | 2022-04-01 |
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ID=80847713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122179753.1U Active CN216158774U (en) | 2021-09-09 | 2021-09-09 | Fixed connecting rod piece of fiber grating inclinometer and fiber grating inclinometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216158774U (en) |
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2021
- 2021-09-09 CN CN202122179753.1U patent/CN216158774U/en active Active
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