Optical fiber tensioning device

Abstract

The utility model discloses a kind of optical fiber tensioning device, it includes fixed mechanism and support mechanism, fixed mechanism is used to fix the both ends of optical fiber sensor, support mechanism is used to support the middle part of optical fiber sensor;Fixed mechanism includes pedestal, pedestal is provided with elastic mechanism, groove is opened in the middle part of pedestal, groove is set to pass through optical fiber sensor, and elastic mechanism is used to connect optical fiber sensor.The utility model is fixed in elastic mechanism by the both ends of optical fiber sensor, optical fiber sensor both ends are exerted by elastic mechanism, so that optical fiber sensor is fixed in fixed mechanism When in tensile state, further make optical fiber sensor be fixed on the straight line placement state when on the bank, to improve the installation quality of optical fiber sensor, guarantee the stability of optical fiber sensor operation.

Description

Technical Field

[0001] This utility model relates to the field of fiber optic sensor technology, and in particular to a fiber optic tensioning device. Background Technology

[0002] An optical fiber sensor is a sensor that converts the state of a measured object into a measurable optical signal. An optical fiber sensor includes an optical fiber and a modulator. Its working principle is to send the light beam incident from the light source into the modulator through the optical fiber. In the modulator, the interaction with the external measured parameters causes changes in the optical properties of the light, such as the intensity, wavelength, frequency, phase, and polarization state, which become a modulated optical signal. This signal is then sent through the optical fiber to an optoelectronic device and demodulated to obtain the measured parameters.

[0003] As a component of the wet end of the hull system, the fiber optic sensor needs to be installed on the outer shell of the hull on both sides. Since the length of the fiber optic cable varies during the manufacturing process, bending and other phenomena may occur when it is installed on the hull, which will affect the installation quality of the fiber optic sensor and be detrimental to the stability of its operation.

[0004] Therefore, it is urgent to propose a fiber optic tensioning device to solve the problem. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide an optical fiber tensioning device to improve the installation quality of optical fiber sensors and ensure the stability of optical fiber sensor operation.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an optical fiber tensioning device for fixing an optical fiber sensor, which includes a fixing mechanism and a supporting mechanism. The fixing mechanism is used to fix both ends of the optical fiber sensor, and the supporting mechanism is used to support the middle part of the optical fiber sensor.

[0007] The fixing mechanism includes a base, on which an elastic mechanism is provided. A slot is opened in the middle of the base to allow the fiber optic sensor to pass through and be installed. The elastic mechanism is used to connect the fiber optic sensor.

[0008] Furthermore, the elastic mechanism includes an elastic element and a connecting seat. The base is provided with fixing plates on both sides of the slot, a first sleeve is fixed on the fixing plates, a second sleeve is provided on the connecting seat, the elastic element is placed between the first sleeve and the second sleeve, and the connecting seat is used to connect the fiber optic sensor.

[0009] Furthermore, there are two second sleeves, and the fixing rod is set between the two second sleeves.

[0010] Furthermore, the connecting seat is also provided with a fixing rod, which is fixedly connected to the second sleeve and is used to connect to the fiber optic sensor.

[0011] Furthermore, the fiber optic sensor is provided with hooks at both ends, and the fixing rod passes through the hooks.

[0012] Furthermore, a positioning plate is provided on the second sleeve, and the fixing rod is locked onto the positioning plate.

[0013] Furthermore, multiple fixing rods can be designed between the two positioning plates, with the fixing rods arranged sequentially from top to bottom.

[0014] Furthermore, a docking post extends from the first sleeve toward the second sleeve, and a docking cylinder extends from the second sleeve toward the first sleeve, with the docking cylinder fitted onto the docking post.

[0015] Furthermore, the first sleeve is provided with a mounting post, and a fixing hole is provided on the fixing plate. The mounting post is locked in the fixing hole by an adjusting nut.

[0016] Furthermore, the support mechanism includes multiple spaced brackets, which are fixedly arranged along the extension direction of the fiber optic sensor, and are used for the fiber optic sensor to pass through.

[0017] In summary, the fiber optic tensioning device of this utility model fixes both ends of the fiber optic sensor to an elastic mechanism, and uses the elastic mechanism to apply force to both ends of the fiber optic sensor, so that the fiber optic sensor is in a tensile state when fixed to the fixing mechanism, and thus the fiber optic sensor is in a straight position when fixed to the ship's side, thereby improving the installation quality of the fiber optic sensor and ensuring the stability of the fiber optic sensor operation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the installation of an optical fiber vibration damping device according to the present invention;

[0019] Figure 2 This is a schematic diagram of the installation of the fiber optic vibration damping device after the concealed flow guide cover is installed according to this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the bracket of this utility model;

[0021] Figure 4 This is a schematic diagram of the fixing mechanism of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the fixing mechanism of this utility model after the second sleeve is hidden;

[0023] Figure 6 This is a schematic diagram of the structure of the fixing base of this utility model after the first sleeve is hidden;

[0024] Figure 7 This is a schematic diagram of the structure of the first sleeve of this utility model;

[0025] Figure 8 This is a schematic diagram of the installation of the fiber optic sensor of this utility model. Detailed Implementation

[0026] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and 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 should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Please see Figures 1 to 8This utility model discloses an optical fiber tensioning device, installed on the sides of a ship's hull, for fixing an optical fiber sensor 500. The optical fiber tensioning device includes a fixing mechanism 100 and a supporting mechanism 200, both fixed to a mounting panel 300. Specifically, the fixing mechanism 100 and the supporting mechanism 200 are both used to fix to the mounting panel 300 on the ship's hull. The fixing mechanism 100 is used to fix both ends of the optical fiber sensor 500, and the supporting mechanism 200 is used to support the middle part of the optical fiber sensor 500. Specifically, the optical fiber sensor 500 includes an optical fiber and an adjuster, and the supporting mechanism 200... The structure can be designed with openings in the support plate to support the middle part of the fiber optic sensor 500. This is a known technology and will not be described in detail here. The fiber optic sensors 500 are arranged at intervals on the outside of the ship's hull. A flow guide 500 is provided on the outside of the ship's hull. The flow guide 500 is fixed on the mounting panel 300. The flow guide 500 covers the fixing mechanism 100 and the support structure. It is used to cover the fixing mechanism 100 and the support mechanism 200, thereby reducing the corrosion of the fixing mechanism 100, the support mechanism 200 and the fiber optic sensor 500 by external water flow, which would affect the service life of the product.

[0030] The fixing mechanism 100 includes two bases 110, and an elastic mechanism 120 is provided on the bases 110. A slot 111 is opened in the middle of the base 110 for the fiber optic sensor 500 to pass through. The elastic mechanism 120 is used to connect the fiber optic sensor 500. The elastic mechanism 120 applies a force to the fiber optic sensor 500, so that the fiber optic sensor 500 is in a tensile state when fixed on the fixing mechanism 100, thereby ensuring that the fiber optic sensor 500 is in a straight position when fixed on the ship's side, thus improving the installation quality of the fiber optic sensor 500 and ensuring the stability of the operation of the fiber optic sensor 500.

[0031] Specifically, the elastic mechanism 120 includes an elastic element 121 and a connecting seat 122. The base 110 has fixing plates 112 on both sides of the slot 111. A first sleeve 113 is fixedly installed on the fixing plate 112. A second sleeve 1221 is installed on the connecting seat 122. The elastic element 121 is placed between the first sleeve 113 and the second sleeve 1221. The connecting seat 122 is used to connect the fiber optic sensor 500. The deformation of the two elastic elements 121 generates forces that are applied to both ends of the fiber optic sensor 500, so that the fiber optic sensor 500 is in a stretched state when fixed on the fixing mechanism 100, and thus the fiber optic sensor 500 is in a straight-line position when fixed on the ship's side, thereby improving the installation quality of the fiber optic sensor 500 and ensuring the stability of the operation of the fiber optic sensor 500. In this embodiment, the elastic element 121 is a spring structure.

[0032] Alternatively, in other embodiments, the fixing mechanism 100 includes a base 110 and a fixing seat, respectively disposed at both ends of the fiber optic sensor 500. The fixing seat does not need to be designed with an elastic mechanism 120; it only needs to fix one end of the fiber optic sensor 500. The base 110 needs to be designed with an elastic mechanism 120 to apply force to the fiber optic sensor 500, so that the fiber optic sensor 500 is in a stretched state when fixed on the fixing mechanism 100. This ensures that the fiber optic sensor 500 is in a straight-lined position when fixed on the ship's side, thereby improving the installation quality of the fiber optic sensor 500 and ensuring the stability of the fiber optic sensor 500's operation.

[0033] In one embodiment, a fixing rod 1222 is also provided on the connecting seat 122. The fixing rod 1222 is fixedly connected to the second sleeve 1221, so that the fixing rod 1222 moves with the movement of the second sleeve 1221. One end of the fiber optic sensor 500 is fixedly connected to the fixing rod 1222. The force applied to the fiber optic sensor 500 is adjusted by the deformation of the elastic element 121, so that the initial length of the fiber optic sensor 500 and the maximum length in the tensile state are adjusted back and forth. The maximum length of the fiber optic sensor 500 can be known from the initial length and elongation of the fiber optic sensor 500, which will not be elaborated here.

[0034] Furthermore, each end of the fiber optic sensor 500 is provided with a hook 510, and the fixing rod 1222 passes through the hook 510 to achieve the fixing operation of both ends of the fiber optic sensor 500.

[0035] In one embodiment, there are two second sleeves 1221, and the fixing rod 1222 is disposed between the two second sleeves 1221. Alternatively, the number of second sleeves 1221 can also be designed as one. When there is only one second sleeve, one end of the fixing rod 1222 is connected to the second sleeve 1221, and the other end of the fixing rod 1222 is connected to a guide mechanism. An elastic element 121 can also be used to apply force to the fiber optic sensor 500 to ensure the installation quality of the fiber optic sensor 500. The guide mechanism includes a guide post extending from the first sleeve and a guide plate connected to the other end of the fixing rod 1222. The guide plate has a guide hole through which the guide post passes to realize the guiding function of the guide mechanism.

[0036] In this embodiment, taking two second sleeves 1221 as an example, a positioning plate 1223 is provided at the bottom end of the second sleeve 1221, and the fixing rod 1222 is fastened to the positioning plate 1223 by bolts. The connection operation between the fiber optic sensor 500 and the fixing rod 1222 is realized by fastening the hook 510 at one end of the fiber optic sensor 500 to the fixing rod 1222. The structural principle of fixing the two ends of the fiber optic sensor 500 to the corresponding fixing rods 1222 to realize the fixing operation of the fiber optic sensor 500 is as follows: the maximum length of the fiber optic sensor 500 can be known from the initial length and elongation of the fiber optic sensor 500, and thus the fixing can be conveniently achieved. The mounting base is placed on the mounting panel 300 at a suitable position and welded for fixation. Finally, depending on the actual site conditions, elastic elements 121 of different lengths can be placed in the mounting base to keep the fiber optic sensor 500 in a stretched state, ensuring the straightness of the fiber optic sensor 500 and improving the fixing effect of the fiber optic sensor 500. Since the fiber optic sensor 500 is in a stretched state, the restoring force of the fiber optic sensor 500 can apply a force to the fixing rod 1222, thereby ensuring that the second sleeve 1221 does not move too far away from the first sleeve 113. While ensuring the stable placement of the elastic element 121, the stability of the fixing mechanism 100 structure is also improved.

[0037] Furthermore, multiple fixing rods 1222 between the two positioning plates 1223 can be designed, with the fixing rods 1222 arranged sequentially from top to bottom. This allows fixing rods 1222 of different heights to be used to connect the two ends of the fiber optic sensor 500 according to actual installation needs, so as to adjust the installation height of the fiber optic sensor 500 and adapt to the installation requirements of different scenarios.

[0038] In one embodiment, a docking post 114 extends from the first sleeve 113 toward the second sleeve 1221, and a docking tube 1224 extends from the second sleeve 1221 toward the first sleeve 113. The docking tube 1224 is sleeved on the docking post 114, thereby ensuring the stability of the connection between the first sleeve 113 and the second sleeve 1221. In addition, it also ensures that the elastic element 121 will not detach from the accommodating space enclosed by the first sleeve 113 and the second sleeve 1221, thereby ensuring the working quality of the device.

[0039] In one embodiment, to further adjust the elongation state of the fiber optic sensor 500, the fixing plate 112 and the first sleeve 113 can adopt a detachable connection structure. Specifically, a mounting post 115 is provided at the bottom end of the first sleeve 113, and a fixing hole 1121 is provided on the fixing plate 112. The mounting post 115 is locked in the fixing hole 1121 by adjusting nuts 116, thereby realizing the fixed connection between the fixing plate 112 and the first sleeve 113. The distance between the first sleeve 113 and the base 110 can be adjusted by setting different numbers of adjusting nuts 116 to adjust the fiber optic sensor. The extension state of the device 500 is adjusted. Specifically, different numbers of adjusting nuts 116 are set between the first sleeve 113 and the fixed plate 112 to adjust the distance between the first sleeve 113 and the base 110. The distance between the two fixed rods 1222 is also increased synchronously, so that a longer optical sensor structure can be connected between the two fixed rods 1222. When the distance between the two bases 110 on the mounting panel 300 is too short to ensure that the optical fiber sensor 500 is in the extension state, multiple adjusting nuts 116 can be placed to ensure the extension state of the optical fiber sensor 500.

[0040] In one embodiment, the support mechanism 200 includes a plurality of spaced brackets 210, which are fixedly arranged along the extension direction of the fiber optic sensor 500. Specifically, the plurality of brackets 210 are fixed on the mounting panel 300, and the fiber optic sensor 500 passes through the brackets 210, thereby enabling the brackets 210 to support and limit the middle part of the fiber optic sensor 500. In this embodiment, the brackets 210 have through holes 201, and the fiber optic sensor 500 passes through the through holes 201, thereby enabling the brackets 210 to support and limit the middle part of the fiber optic sensor 500.

[0041] In one embodiment, the bracket 210 has an axisymmetric structure and includes a limiting part 211, which is annular in shape. The fiber optic sensor 500 passes through the limiting part 211, and a through hole 201 is formed on the limiting part 211. Two mating ears 212 are provided on the limiting part 211. By adjusting the distance between the two mating ears 212, the limiting part 211 can fix and limit the fiber optic sensor 500. In this embodiment, the distance between the two mating ears 212 is adjusted by a bolt structure, which also closes the through hole 201, so that the fiber optic sensor 500 is stably placed in the through hole 201 and will not come out of the limiting part 211.

[0042] On both sides of the limiting part 211, bent and extended to form an arched supporting part 213. Designing the supporting part 213 into an arched shape can effectively enhance the structural stability of the bracket 210 and effectively increase the vibration buffering space of the limiting part 211. The fiber optic sensor 500 needs to pass through the limiting part 211 for limiting installation, which can weaken the influence on the detection of the fiber optic sensor 500 caused by the vibration of the hull.

[0043] Alternatively, the supporting part 213 can also be designed as a hollow panel structure. The lower end part of the supporting part 213 can be designed as an L-shaped structure, which can effectively enhance the structural stability of the bracket 210 and effectively increase the vibration buffering space of the limiting part 211. The fiber optic sensor 500 needs to pass through the limiting part 211 for limiting installation, which can weaken the influence on the detection of the fiber optic sensor 500 caused by the vibration of the hull.

[0044] In one embodiment, a reinforcing part 214 is provided above the supporting part 213. The reinforcing part 214 is fixedly connected to the supporting part 213 and the limiting part 211 respectively, so as to further improve the structural stability of the bracket 210. The reinforcing part 214 is a hollow panel structure. The reinforcing part 214 and the supporting part 213 and the limiting part 211 enclose two hollow structures with a "mouth" - shaped cross - section. While saving the materials of the bracket 210, it also improves the elastic performance of the bracket 210, thereby weakening the transmission effect of the hull vibration, reducing the vibration influence on the fiber optic sensor 500, and effectively improving the detection effect of the fiber optic sensor 500.

[0045] In one embodiment, fixing parts 215 are provided on both sides of the supporting part 213. The fixing parts 215 are block - shaped structures. The fixing parts 215 are fixed on the mounting panel 300 through bolt parts, so as to realize the fixed installation of the bracket 210. Specifically, threaded holes 2151 are opened on the fixing parts 215, and the bolt parts pass through the threaded holes 2151 and are fixed on the mounting panel 300, so as to realize the fixed installation of the bracket 210.

[0046] In one embodiment, a first reinforcing rib 216 is provided between the supporting part 213 and the limiting part 211, so as to improve the connection stability between the supporting part 213 and the limiting part 211, and further improve the service life of the bracket 210.

[0047] In one embodiment, a second reinforcing rib 217 is provided between the supporting part 213 and the reinforcing part 214, so as to improve the connection stability between the supporting part 213 and the reinforcing part 214, and further improve the service life of the bracket 210.

[0048] In one embodiment, the bracket 210 is constructed of rubber, and rubber is one of the polymer viscoelastic damping materials. Using rubber material in the field of vibration reduction and noise reduction can absorb vibration energy by utilizing the viscoelasticity between molecules and convert it into heat energy for dissipation, thereby achieving the effect of vibration reduction and noise reduction.

[0049] In one embodiment, a sound insulation layer is attached to the surface of the mounting panel 300 at the mounting location of the fiber optic sensor 500, and the bracket 210 is fixed above the sound insulation layer, thereby reducing the noise impact transmitted through the mounting panel 300; wherein, the sound insulation layer is made of materials such as sound insulation cotton.

[0050] In one embodiment, the flow guide 400 is constructed of fiberglass, and a damping rubber layer is attached to the outer surface of the flow guide 400. The damping rubber layer is used to reduce the impact of flow noise on the working quality of the fiber optic sensor 500.

[0051] In the specific assembly of this utility model, both ends of the fiber optic sensor 500 are fixed to the fixing mechanism 100, and the middle part of the fiber optic sensor 500 is supported by the bracket 210 of the supporting mechanism 200. A first sleeve 113, a second sleeve 1221, and an elastic element 121 are designed on the fixing mechanism 100 and connected to the fiber optic sensor 500 via a fixing rod 1222. The force generated by the deformation of the elastic mechanism 120 is applied to both ends of the fiber optic sensor 500, so that the fiber optic sensor 500 is in a tensile state when fixed to the fixing mechanism 100. This ensures that the fiber optic sensor 500 is in a straight position when fixed to the ship's side, thereby improving the installation quality of the fiber optic sensor 500 and ensuring the stability of its operation.

[0052] In summary, the fiber optic tensioning device of this utility model fixes both ends of the fiber optic sensor 500 to the elastic mechanism 120, and uses the elastic mechanism 120 to apply force to both ends of the fiber optic sensor 500, so that the fiber optic sensor 500 is in a tensile state when fixed to the fixing mechanism 100, thereby ensuring that the fiber optic sensor 500 is in a straight position when fixed to the ship's side, thus improving the installation quality of the fiber optic sensor 500 and ensuring the stability of the operation of the fiber optic sensor 500.

[0053] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. An optical fiber tensioning device for fixing an optical fiber sensor, characterized in that: It includes a fixing mechanism and a support mechanism. The fixing mechanism is used to fix the two ends of the fiber optic sensor, and the support mechanism is used to support the middle part of the fiber optic sensor. The fixing mechanism includes a base, on which an elastic mechanism is provided. A slot is opened in the middle of the base to allow the fiber optic sensor to pass through and be installed. The elastic mechanism is used to connect the fiber optic sensor.

2. The optical fiber tensioning device according to claim 1, characterized in that: The elastic mechanism includes an elastic element and a connecting seat. The base is provided with a fixing plate on both sides of the slot. A first sleeve is fixed on the fixing plate. A second sleeve is provided on the connecting seat. The elastic element is placed between the first sleeve and the second sleeve. The connecting seat is used to connect the fiber optic sensor.

3. The optical fiber tensioning device according to claim 2, characterized in that: There are two second sleeves, and the fixing rod is set between the two second sleeves.

4. The optical fiber tensioning device according to claim 2, characterized in that: The connecting seat is also provided with a fixing rod, which is fixedly connected to the second sleeve. The fixing rod is used to connect to the fiber optic sensor.

5. The optical fiber tensioning device according to claim 4, characterized in that: The fiber optic sensor has hooks at both ends, and the fixing rod passes through the hooks.

6. The optical fiber tensioning device according to claim 4, characterized in that: The second sleeve is equipped with a positioning plate, and the fixing rod is locked onto the positioning plate.

7. The optical fiber tensioning device according to claim 6, characterized in that: Multiple fixing rods can be designed between the two positioning plates, and the fixing rods are set sequentially from top to bottom.

8. The optical fiber tensioning device according to claim 2, characterized in that: A docking post extends from the first sleeve toward the second sleeve, and a docking tube extends from the second sleeve toward the first sleeve, with the docking tube fitted onto the docking post.

9. The optical fiber tensioning device according to claim 2, characterized in that: The first sleeve is provided with a mounting post, and a fixing hole is provided on the fixing plate. The mounting post is locked in the fixing hole by an adjusting nut.

10. The optical fiber tensioning device according to claim 1, characterized in that: The support mechanism includes multiple spaced brackets, which are fixedly arranged along the extension direction of the fiber optic sensor and are used for the fiber optic sensor to pass through.

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