CN114964339A - Optical fiber sensing box - Google Patents
Optical fiber sensing box Download PDFInfo
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- CN114964339A CN114964339A CN202210690693.6A CN202210690693A CN114964339A CN 114964339 A CN114964339 A CN 114964339A CN 202210690693 A CN202210690693 A CN 202210690693A CN 114964339 A CN114964339 A CN 114964339A
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 100
- 239000000835 fiber Substances 0.000 claims abstract description 29
- 239000013013 elastic material Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009459 flexible packaging Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/24—Housings ; Casings for instruments
- G01D11/245—Housings for sensors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention discloses an optical fiber sensing box, which relates to the technical field of optical fiber sensing devices and comprises an upper shell, a main cylinder, a bottom plate, a rotating mandrel, a rotary table, a handle assembly and an optical fiber sensing unit, wherein the upper part of the main cylinder is provided with a top plate; the optical fiber sensing unit comprises a sensing component, a tail fiber and an optical fiber connector which are sequentially connected, the sensing component is fixed on the upper portion of the top plate and located between the top plate and the upper shell, the first through hole and the second through hole are used for allowing the tail fiber and the optical fiber connector to penetrate, the tail fiber is wound on the rotating mandrel, the lower surface of the bottom plate is provided with a clamping groove, and the clamping groove is used for placing the optical fiber connector. The optical fiber sensing box is simple and convenient to operate, convenient to carry and move, and avoids damage to the tail optical fiber and the optical fiber connector.
Description
Technical Field
The invention relates to the technical field of optical fiber sensing devices, in particular to an optical fiber sensing box.
Background
Optical fibers, as a new generation of optical transmission media, have been widely used in the fields of optical communications and other applications due to their characteristics of simple manufacture, low price, quick connection, and the like. In particular, the optical fiber sensing technology has been rapidly developed in recent years due to its advantages of high sensitivity, high precision, small size, easy web formation, electromagnetic interference resistance, etc. The optical fiber sensing can modulate the optical signal transmitted in the optical fiber through the change of external physical quantity, so that parameters such as amplitude, phase, frequency polarization state or wavelength of the signal light are changed, and then the modulated signal is demodulated, so that a measured signal is obtained, which has important significance for measuring special environment parameters.
At present, the optical fiber sensing unit is usually packaged in a rigid packaging manner or a flexible packaging manner, but the packaging manner is only used for packaging the sensing component, and the tail fiber and the optical fiber connector at one end of the sensing component are not processed, so that the tail fiber and the optical fiber connector may be damaged in the using process, and the normal use of the optical fiber sensing unit is influenced. In addition, for some special application scenarios, the position of the optical fiber sensing unit needs to be frequently replaced, which requires that the sensing component and the pigtail and the optical fiber connector thereof are movable as a whole. Therefore, an optical fiber sensing box which is easy to operate and carry is needed.
Disclosure of Invention
In order to solve the technical problems, the invention provides the optical fiber sensing box which is simple and convenient to operate, convenient to carry and move and capable of avoiding damage to the tail optical fiber and the optical fiber connector.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides an optical fiber sensing box, which comprises an upper shell, a main cylinder, a bottom plate, a rotating mandrel, a turntable, a handle assembly and an optical fiber sensing unit, wherein the upper part of the main cylinder is provided with a top plate, the lower part of the main cylinder is of an open structure, a first through hole is arranged on the top plate, a second through hole is arranged on one side of the main cylinder, the upper shell is arranged on the top plate, the bottom plate is arranged at the lower part of the main cylinder, the bottom plate is provided with an installation hole, the rotating mandrel is rotatably arranged between the top plate and the bottom plate, the bottom of the rotating mandrel is positioned at the upper part of the mounting hole, the turntable is positioned at the lower part of the mounting hole, the turntable is fixed on the rotating mandrel, an accommodating groove is arranged on the turntable, one end of the handle component is rotatably arranged in the accommodating groove, the handle assembly can rotate into the accommodating groove or rotate to the outside of the accommodating groove; the optical fiber sensing unit comprises a sensing part, a tail fiber and an optical fiber connector which are sequentially connected, the sensing part is fixed on the upper portion of the top plate and located between the top plate and the upper shell, the first through hole and the second through hole are used for supplying the tail fiber and the optical fiber connector penetrate, the tail fiber is wound on the rotating core shaft, a clamping groove is formed in the lower surface of the bottom plate, and the clamping groove is used for placing the optical fiber connector.
Preferably, the rotating mandrel comprises a first cylindrical section and a second cylindrical section which are sequentially connected from top to bottom, and the outer diameter of the first cylindrical section is larger than that of the second cylindrical section; the lower surface of the top plate is provided with a groove, and the top of the first cylindrical section is arranged in the groove; the mounting holes comprise a first cylindrical hole, a second cylindrical hole and a third cylindrical hole which are sequentially connected from top to bottom, the diameters of the first cylindrical hole and the third cylindrical hole are larger than that of the second cylindrical hole, the lower portion of the first cylindrical section and the second cylindrical section are respectively mounted in the first cylindrical hole and the second cylindrical hole, and the rotary disc is mounted in the third cylindrical hole.
Preferably, a wire groove is formed in the outer wall of the first cylindrical section, and the wire groove is one or more of wave-shaped, stepped, zigzag and spiral.
Preferably, go up the casing including the upper cover plate and the connecting cylinder that from top to bottom connect gradually, be provided with the internal thread on the inner wall of connecting cylinder, the roof is the plectane, be provided with the external screw thread on the outer wall of roof, connecting cylinder screw thread install in on the roof, be provided with a plurality of ventilation holes on the upper cover plate.
Preferably, the base plate is mounted to a lower portion of the main cylinder by a plurality of first screws, the turntable is mounted to the rotary spindle by a plurality of second screws, and the sensing member is mounted to an upper portion of the top plate by a plurality of third screws.
Preferably, the accommodating groove comprises a first strip-shaped groove and a second strip-shaped groove which are connected, and the width of the first strip-shaped groove is smaller than that of the second strip-shaped groove; the handle assembly comprises a handle main body, a movable shaft, a spring, a gasket and a fourth screw, one end of the movable shaft is rotatably installed in the first strip-shaped groove through a pin, the gasket, the spring and the handle main body are sequentially sleeved on the movable shaft, the diameter of the gasket is larger than the width of the first strip-shaped groove and smaller than the width of the second strip-shaped groove, the gasket is made of elastic materials, a fourth cylindrical hole and a fifth cylindrical hole are sequentially formed in one end of the handle main body from outside to inside, the diameter of the fourth cylindrical hole is larger than that of the fifth cylindrical hole, the spring is located in the fourth cylindrical hole, the movable shaft is located in the fourth cylindrical hole and the fifth cylindrical hole, and the other end of the handle main body is connected with the movable shaft through the fourth screw.
Preferably, the upper shell, the main cylinder, the top plate, the bottom plate, the rotating mandrel, the turntable, the handle main body and the movable shaft are all made of polytetrafluoroethylene, and the gasket is made of rubber.
Preferably, the length of the optical fiber sensing unit is 30 mm-80 mm, and the sensing component is one or more of a gas sensing component, a particle sensing component and a liquid sensing component.
Compared with the prior art, the invention has the following technical effects:
the optical fiber sensing box comprises an upper shell, a main cylinder, a bottom plate, a rotating mandrel, a turntable, a handle assembly and an optical fiber sensing unit, wherein the rotating mandrel is rotatably arranged between the top plate and the bottom plate; the optical fiber sensing unit comprises a sensing component, a tail fiber and an optical fiber connector which are sequentially connected, the sensing component is fixed on the upper portion of the top plate and located between the top plate and the upper shell, the first through hole and the second through hole are used for allowing the tail fiber and the optical fiber connector to penetrate, the tail fiber is wound on the rotating mandrel, the lower surface of the bottom plate is provided with a clamping groove, and the clamping groove is used for placing the optical fiber connector. The handle assembly is rotated to the outside of the accommodating groove, the handle assembly is held to rotate the rotary table, and then the rotary core shaft is driven to rotate together, so that the tail fiber wound on the rotary core shaft can be quickly taken out and accommodated, the operation is simple, the carrying and the moving are convenient, and the problem that the tail fiber in the optical fiber sensing unit is difficult to process is solved to a great extent; when the optical fiber sensing unit is in a storage state, the sensing component, the tail fiber and the optical fiber connector can be simultaneously protected, the damage to the tail fiber and the optical fiber connector is avoided, the optical fiber sensing unit can be moved by moving the optical fiber sensing box, and the optical fiber sensing unit is enabled to be movable integrally; meanwhile, the optical fiber sensing box is small and durable and is suitable for various types of optical fiber sensing units.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a perspective view of an optical fiber sensor box according to the present invention;
FIG. 2 is a bottom view of a fiber optic sensor cartridge provided in accordance with the present invention;
FIG. 3 is a cross-sectional view of a fiber optic sensor cartridge provided by the present invention;
FIG. 4 is a schematic structural diagram of a main cylinder and a top plate in the optical fiber sensing box provided by the present invention;
FIG. 5 is a schematic structural diagram of a bottom plate in an optical fiber sensing box according to the present invention;
FIG. 6 is a schematic structural diagram of a rotary mandrel in an optical fiber sensor box according to the present invention;
FIG. 7 is a schematic view of the installation of the handle assembly and the turntable in the optical fiber sensing box provided by the present invention;
FIG. 8 is a schematic structural diagram of a turntable in an optical fiber sensing box according to the present invention;
FIG. 9 is a schematic structural diagram of a handle body in the optical fiber sensing box according to the present invention;
fig. 10 is a schematic structural diagram of a movable shaft in the optical fiber sensing box provided by the invention.
Description of reference numerals: 100. an optical fiber sensing box; 1. an upper housing; 101. an upper cover plate; 102. a connecting cylinder; 2. a main barrel; 3. a top plate; 4. a base plate; 5. rotating the mandrel; 501. a first cylindrical section; 502. a second cylindrical section; 503. a wire slot; 6. a turntable; 7. a sensing component; 8. a first through hole; 9. a second through hole; 10. a vent hole; 11. a card slot; 12. a first screw; 13. a second screw; 14. a third screw; 15. accommodating grooves; 1501. a first bar-shaped groove; 1502. a second strip groove; 16. a handle main body; 17. a movable shaft; 18. a spring; 19. a gasket; 20. a fourth screw; 21. a first cylindrical bore; 22. a second cylindrical bore; 23. a third cylindrical bore; 24. a fourth cylindrical bore; 25. a fifth cylindrical hole; 26. a screw mounting hole; 27. a third through hole; 28. a threaded hole; 29. a pin hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide an optical fiber sensing box which is simple and convenient to operate, convenient to carry and move and capable of avoiding damage to a tail optical fiber and an optical fiber connector.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1 to 10, the present embodiment provides an optical fiber sensing cassette 100, which includes an upper housing 1, a main tube 2, a bottom plate 4, a rotating spindle 5, a turntable 6, a handle assembly, and an optical fiber sensing unit, wherein a top plate 3 is provided at an upper portion of the main tube 2, the lower part of the main cylinder 2 is of an open structure, a first through hole 8 is arranged on the top plate 3, a second through hole 9 is arranged on one side of the main cylinder 2, the upper shell 1 is arranged on the top plate 3, the bottom plate 4 is arranged on the lower part of the main cylinder 2, a mounting hole is arranged on the bottom plate 4, the rotating mandrel 5 is rotatably arranged between the top plate 3 and the bottom plate 4, the bottom of the rotating mandrel 5 is located at the upper part of the mounting hole, the rotary disc 6 is located at the lower part of the mounting hole, the rotary disc 6 is fixed on the rotating mandrel 5, the accommodating groove 15 is formed in the rotary disc 6, one end of the handle assembly is rotatably mounted in the accommodating groove 15, and the handle assembly can rotate into the accommodating groove 15 or rotate to the outside of the accommodating groove 15; the optical fiber sensing unit comprises a sensing component 7, a tail fiber and an optical fiber connector which are sequentially connected, the sensing component 7 is fixed on the upper portion of the top plate 3 and is located between the top plate 3 and the upper shell 1, the first through hole 8 and the second through hole 9 are used for allowing the tail fiber and the optical fiber connector to pass through, the tail fiber is wound on the rotating mandrel 5, the lower surface of the bottom plate 4 is provided with a clamping groove 11, and the clamping groove 11 is used for placing the optical fiber connector.
When the fiber optic sensor is used, the handle assembly is rotated to the outside of the accommodating groove 15, so that the handle assembly is perpendicular to the rotary table 6, the handle assembly is held to rotate the rotary table 6, the rotary core shaft 5 is driven to rotate together, tail fibers wound on the rotary core shaft 5 can be rapidly taken out and accommodated, the collecting time is less than 1 minute during operation, the operation is simple, the carrying is convenient, and the problem that the tail fibers in the fiber optic sensor unit are difficult to process is solved to a great extent; when the optical fiber sensing box 100 is in a storage state, the sensing component 7, the tail fiber and the optical fiber connector can be simultaneously protected, the damage to the tail fiber and the optical fiber connector is avoided, the optical fiber sensing unit can be moved by moving the optical fiber sensing box 100, and the whole optical fiber sensing unit has mobility; meanwhile, the optical fiber sensing box 100 is compact and durable, and is applicable to various types of optical fiber sensing units.
As shown in fig. 3 to 6, the rotating mandrel 5 includes a first cylindrical section 501 and a second cylindrical section 502 connected in sequence from top to bottom, and the outer diameter of the first cylindrical section 501 is larger than that of the second cylindrical section 502; the lower surface of the top plate 3 is provided with a groove, the top of the first cylindrical section 501 is arranged in the groove, the groove is a circular groove and is structurally matched with the first cylindrical section 501, and therefore the upper part of the rotating mandrel 5 is limited and the rotating mandrel 5 can rotate; the mounting hole is including the first cylinder hole 21 that from top to bottom connects gradually, second cylinder hole 22 and third cylinder hole 23, the diameter of first cylinder hole 21 and third cylinder hole 23 all is greater than the diameter of second cylinder hole 22, the lower part of first cylinder section 501 and second cylinder section 502 are installed respectively in first cylinder hole 21 and second cylinder hole 22, first cylinder section 501 and first cylinder hole 21 structure phase-match, second cylinder section 502 and second cylinder hole 22 structure phase-match, and then carry out spacing and make rotating mandrel 5 can rotate the lower part of rotating mandrel 5, carousel 6 is installed in third cylinder hole 23, carousel 6 is the disc and with third cylinder hole 23 structure phase-match.
As shown in fig. 6, a wire groove 503 is disposed on an outer wall of the first cylindrical section 501, and the wire groove 503 is one or more of a wave shape, a step shape, a zigzag shape and a spiral shape. The diameter of the first cylindrical section 501 is 20mm to 50 mm. The diameter of the first cylindrical section 501 is 50mm and the diameter of the second cylindrical section 502 is 46mm in this embodiment.
Specifically, the upper casing 1 includes an upper cover plate 101 and a connecting cylinder 102 which are sequentially connected from top to bottom, an inner thread is provided on an inner wall of the connecting cylinder 102, the top plate 3 is a circular plate, an outer thread is provided on an outer wall of the top plate 3, the connecting cylinder 102 is threadedly mounted on the top plate 3, and the upper cover plate 101 is provided with a plurality of vent holes 10.
Specifically, the size of the vent hole 10 is 2 mm-10 mm, and the vent hole 10 is one or more of a triangle, a star, a square and a circle. In this embodiment, the ventilation holes 10 are circular holes with a diameter of 5mm and a number of 20, and are evenly distributed on the upper cover plate 101.
In this embodiment, the first through hole 8 and the second through hole 9 are both circular holes, and the diameters of the first through hole 8 and the second through hole 9 are both 12 mm.
Specifically, draw-in groove 11 and optical fiber splice's shape phase-match, and then make optical fiber splice can the joint in draw-in groove 11 to realize optical fiber splice's the protection of accomodating. The shape type of the card slot 11 is one or more of FC/PC, SMA, SC and ST. The shape type of the card slot 11 in this embodiment is FC/PC.
In this embodiment, the base plate 4 is mounted to the lower portion of the main cylinder 2 by a plurality of first screws 12, the turntable 6 is mounted to the rotary spindle 5 by a plurality of second screws 13, and the sensing member 7 is mounted to the upper portion of the top plate 3 by a plurality of third screws 14.
As shown in fig. 7 to 10, the accommodating groove 15 includes a first bar-shaped groove 1501 and a second bar-shaped groove 1502 which are connected, the width of the first bar-shaped groove 1501 is smaller than that of the second bar-shaped groove 1502, the first bar-shaped groove 1501 and the second bar-shaped groove 1502 in this embodiment are rectangular grooves, and four upper edges of the second bar-shaped groove 1502 are rounded; the handle assembly comprises a handle main body 16, a movable shaft 17, a spring 18, a gasket 19 and a fourth screw 20, one end of the movable shaft 17 is rotatably installed in a first bar-shaped groove 1501 through a pin, a pin hole 29 for installing the pin is formed in one side of a rotary disc 6, the pin hole 29 is communicated with the first bar-shaped groove 1501, the gasket 19, the spring 18 and the handle main body 16 are sequentially sleeved on the movable shaft 17, the diameter of the gasket 19 is larger than the width of the first bar-shaped groove 1501 and smaller than the width of a second bar-shaped groove 1502, the gasket 19 is made of elastic materials, a fourth cylindrical hole 24 and a fifth cylindrical hole 25 are sequentially arranged from outside to inside at one end of the handle main body 16, the diameter of the fourth cylindrical hole 24 is larger than that of the fifth cylindrical hole 25, the spring 18 is located in the fourth cylindrical hole 24, a limiting step is formed at the joint of the fourth cylindrical hole 24 and the fifth cylindrical hole 25, two ends of the spring 18 are respectively contacted with the gasket 19 and the limiting step, the movable shaft 17 is located in the fourth cylindrical hole 24 and the fifth cylindrical hole 25, the other end of the handle body 16 is connected with the movable shaft 17 through the fourth screw 20, specifically, the other end of the handle body 16 is provided with a screw mounting hole 26 for mounting the fourth screw 20, the screw mounting hole 26 is communicated with the fifth cylindrical hole 25, one end of the movable shaft 17 is provided with a third through hole 27 for mounting a pin, and the other end of the movable shaft 17 is provided with a threaded hole 28 for mounting the fourth screw 20.
When the optical fiber sensing box 100 is in a storage state, the handle body 16 is located in the second strip-shaped groove 1502, at the moment, the gasket 19 is attached to the side wall of the joint of the second strip-shaped groove 1502 and the first strip-shaped groove 1501 under the action of the spring 18, and therefore the handle body 16 can be stably placed in the second strip-shaped groove 1502, and the optical fiber sensing box 100 can be conveniently placed horizontally. When the handle body 16 is required to rotate the turntable 6, the handle body 16 in the second strip-shaped groove 1502 is held to rotate outwards, the gasket 19 compresses the spring 18 and the gasket 19 deforms, so that the handle body 16 can rotate to the outside of the second strip-shaped groove 1502, at the moment, the gasket 19 is in contact with the bottom surface of the turntable 6 under the action of the spring 18, and the handle body 16 can be stably maintained in a state perpendicular to the turntable 6, and the handle is convenient to hold to rotate the turntable 6.
In order to meet the requirement of low volatilization of materials and not influence normal optical fiber sensing, the upper shell 1, the main cylinder 2, the top plate 3, the bottom plate 4, the rotating mandrel 5, the turntable 6, the handle main body 16 and the movable shaft 17 are all made of polytetrafluoroethylene, and the gasket 19 is made of rubber. The first screw 12, the second screw 13, the third screw 14 and the fourth screw 20 are all socket head cap screws.
Specifically, the length of the optical fiber sensing unit is 30 mm-80 mm, and the sensing component 7 is one or more of a gas sensing component, a particle sensing component and a liquid sensing component. In this embodiment, the optical fiber sensing unit has a length of 70mm, and the sensing component 7 is a gas sensing component, which can measure the concentration of a specific gas in the environment.
In this embodiment, the optical fiber sensing box 100 is cylindrical, and the diameter of the optical fiber sensing box 100 is 50mm to 120mm, and the thickness thereof is 30mm to 50 mm.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (8)
1. An optical fiber sensing box is characterized by comprising an upper shell, a main cylinder, a bottom plate, a rotating mandrel, a turntable, a handle assembly and an optical fiber sensing unit, wherein the upper part of the main cylinder is provided with a top plate, the lower part of the main cylinder is of an open structure, a first through hole is arranged on the top plate, a second through hole is arranged on one side of the main cylinder, the upper shell is arranged on the top plate, the bottom plate is arranged at the lower part of the main cylinder, a mounting hole is arranged on the bottom plate, the rotating mandrel is rotatably arranged between the top plate and the bottom plate, the bottom of the rotating mandrel is positioned at the upper part of the mounting hole, the turntable is positioned at the lower part of the mounting hole, the turntable is fixed on the rotating mandrel, the turntable is provided with a holding tank, one end of the handle component is rotatably arranged in the holding tank, the handle assembly can rotate into the accommodating groove or rotate to the outside of the accommodating groove; the optical fiber sensing unit comprises a sensing part, a tail fiber and an optical fiber connector which are sequentially connected, the sensing part is fixed on the upper portion of the top plate and located between the top plate and the upper shell, the first through hole and the second through hole are used for supplying the tail fiber and the optical fiber connector penetrate, the tail fiber is wound on the rotating core shaft, a clamping groove is formed in the lower surface of the bottom plate, and the clamping groove is used for placing the optical fiber connector.
2. The optical fiber sensing box according to claim 1, wherein the rotating mandrel comprises a first cylindrical section and a second cylindrical section which are connected in sequence from top to bottom, and the outer diameter of the first cylindrical section is larger than that of the second cylindrical section; the lower surface of the top plate is provided with a groove, and the top of the first cylindrical section is arranged in the groove; the mounting holes comprise a first cylindrical hole, a second cylindrical hole and a third cylindrical hole which are sequentially connected from top to bottom, the diameters of the first cylindrical hole and the third cylindrical hole are larger than that of the second cylindrical hole, the lower portion of the first cylindrical section and the second cylindrical section are respectively mounted in the first cylindrical hole and the second cylindrical hole, and the rotary disc is mounted in the third cylindrical hole.
3. The optical fiber sensing box according to claim 2, wherein a wire groove is provided on an outer wall of the first cylindrical section, and the wire groove is one or more of a wave shape, a step shape, a zigzag shape and a spiral shape.
4. The optical fiber sensing box according to claim 1, wherein the upper housing comprises an upper cover plate and a connecting cylinder which are sequentially connected from top to bottom, an inner thread is arranged on an inner wall of the connecting cylinder, the top plate is a circular plate, an outer thread is arranged on an outer wall of the top plate, the connecting cylinder is threadedly mounted on the top plate, and a plurality of vent holes are formed in the upper cover plate.
5. The optical fiber sensing cassette of claim 1, wherein the bottom plate is mounted to a lower portion of the main cylinder by a plurality of first screws, the turntable is mounted to the rotating spindle by a plurality of second screws, and the sensing part is mounted to an upper portion of the top plate by a plurality of third screws.
6. The optical fiber sensing cassette of claim 1, wherein the receiving slot comprises a first strip-shaped slot and a second strip-shaped slot connected, the first strip-shaped slot having a width smaller than the second strip-shaped slot; the handle assembly comprises a handle main body, a movable shaft, a spring, a gasket and a fourth screw, one end of the movable shaft is rotatably installed in the first strip-shaped groove through a pin, the gasket, the spring and the handle main body are sequentially sleeved on the movable shaft, the diameter of the gasket is larger than the width of the first strip-shaped groove and smaller than the width of the second strip-shaped groove, the gasket is made of elastic materials, a fourth cylindrical hole and a fifth cylindrical hole are sequentially formed in one end of the handle main body from outside to inside, the diameter of the fourth cylindrical hole is larger than that of the fifth cylindrical hole, the spring is located in the fourth cylindrical hole, the movable shaft is located in the fourth cylindrical hole and the fifth cylindrical hole, and the other end of the handle main body is connected with the movable shaft through the fourth screw.
7. The optical fiber sensing box according to claim 6, wherein the upper housing, the main cylinder, the top plate, the bottom plate, the rotating mandrel, the turntable, the handle body and the movable shaft are all made of polytetrafluoroethylene, and the gasket is made of rubber.
8. The optical fiber sensing box according to claim 1, wherein the optical fiber sensing unit has a length of 30mm to 80mm, and the sensing component is one or more of a gas sensing component, a particle sensing component and a liquid sensing component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210690693.6A CN114964339B (en) | 2022-06-17 | 2022-06-17 | Optical fiber sensing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210690693.6A CN114964339B (en) | 2022-06-17 | 2022-06-17 | Optical fiber sensing box |
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| Publication Number | Publication Date |
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| CN114964339A true CN114964339A (en) | 2022-08-30 |
| CN114964339B CN114964339B (en) | 2024-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210690693.6A Active CN114964339B (en) | 2022-06-17 | 2022-06-17 | Optical fiber sensing box |
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|---|---|---|---|---|
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