Optical fiber temperature sensing detection device

Abstract

The utility model discloses an optical fiber temperature sensing detection device, which comprises a host and an optical cable, two ends of the optical cable are respectively provided with a connecting port and a temperature sensing probe, the optical cable is movably connected with the host through the connecting port, the host is provided with a plurality of groups of mounting racks which are distributed at equal intervals, the mounting racks are provided with winding shafts, the winding shafts are provided with sockets, and the sockets are connected with the temperature sensing probe. The two ends of the winding shaft are sleeved with two sets of symmetrically-distributed coil springs respectively, the upper end of the winding shaft is sleeved with a ratchet wheel, a pawl is arranged in the mounting frame, a fixed seat is arranged on the right side of the main machine, a movable frame is arranged on the fixed seat, and wiping cotton is fixedly installed on the movable frame. The winding shaft is arranged to be matched with the installation frame to achieve winding and storage of the optical cable, the optical cable can be unwound according to the actually needed length so that the temperature sensing probe can be installed at a proper temperature measuring position, the wound optical cable cannot be wound in a staggered mode, disordered connection between the connecting port and the host is effectively avoided, and the temperature measuring efficiency is improved. And the optical cable can be protected to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber temperature sensing detection devices, in particular to an optical fiber temperature sensing detection device. Background Art

[0002] Optical fiber is the abbreviation of optical fiber. It is a fiber made of glass or plastic that can be used as a light transmission tool. The transmission principle is "total reflection of light". The transmitting device at one end of the optical fiber uses a light-emitting diode or a laser to transmit light pulses to the optical fiber. The receiving device at the other end of the optical fiber uses a photosensitive element to detect the pulse. Distributed optical fiber temperature sensing technology is a real-time, online, multi-point temperature sensing technology developed in recent years. It can be used to measure the temperature field in real time. In the distributed optical fiber temperature sensing system, the optical fiber is both a sensor and a signal transmission channel. The system uses the temperature field of the space where the optical fiber is located to investigate the backscattered light signal in the optical fiber, and then displays the temperature information in real time after signal mediation, collection and processing.

[0003] In the prior art, the optical fiber temperature sensing detection device makes the optical fiber cable longer to ensure the connection range during use. After the probe is placed according to the actual use position, there is no good fixing measure for the remaining longer optical fiber cable. The disorderly distribution of the optical fiber cable can easily lead to confusion between the interface and the signal processing device interface, which affects the temperature detection result. In addition, the temperature sensing probe in the existing detection device is easily contaminated with dust and other impurities when used under some harsh conditions. If it is not cleaned in time, it will also affect the temperature measurement accuracy. Utility Model Content

[0004] The purpose of the utility model is to provide an optical fiber temperature sensing detection device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an optical fiber temperature sensing detection device, comprising a mainframe and an optical cable, wherein two ends of the optical cable are respectively provided with a connecting port and a temperature sensing probe, the optical cable is movably connected to the mainframe through the connecting port, the mainframe is provided with a plurality of equally spaced mounting frames, the mounting frame is provided with a winding shaft, the winding shaft is provided with a socket, two ends of the winding shaft are respectively sleeved with two groups of symmetrically distributed coil springs, the upper end of the winding shaft is sleeved with a ratchet, a pawl is provided in the mounting frame, the pawl is rotatably connected to the mounting frame through a first rotating rod, a fixed seat is provided on the right side of the mainframe, a movable frame is provided on the fixed seat, a wiping cotton is fixedly installed on the movable frame, and the movable frame is slidably sleeved with the temperature sensing probe.

[0006] As a further preferred embodiment of the present technical solution, both ends of the winding shaft respectively pass through the mounting frame and are rotatably connected to the mounting frame, the inner and outer ends of the disc spring are respectively fixedly connected to the winding shaft and the mounting frame, and a handle is fixedly installed on the upper end of the winding shaft.

[0007] As a further preferred embodiment of the present technical solution, the pawl is meshedly connected with the ratchet wheel, a first torsion spring is sleeved on the first rotating rod, and two ends of the first torsion spring are respectively fixedly connected to the first rotating rod and the mounting frame.

[0008] As a further preferred embodiment of the present technical solution, the mounting frame is movably connected to the host, and two groups of symmetrically distributed plug rods are provided in the host, the two groups of the plug rods are movably connected to the mounting frame, and the two groups of the plug rods are slidably connected to the host, a compression spring is sleeved on the plug rod, a stop block is sleeved on the plug rod, both ends of the compression spring are fixedly connected to the stop block and the host respectively, and a gear is provided in the host.

[0009] As a further preferred embodiment of the present technical solution, racks are provided on the two groups of the insertion rods, and the gears are respectively meshed and connected with the two groups of racks. The gears are rotatably connected to the main machine through a second rotating rod, and a second torsion spring is sleeved on the second rotating rod, and both ends of the second torsion spring are respectively fixedly connected to the second rotating rod and the main machine.

[0010] As a further preferred embodiment of the present technical solution, the fixing seat and the temperature sensing probe are fixedly installed, two groups of symmetrically distributed suction cups are provided below the fixing seat, and a threaded rod is provided inside the fixing seat.

[0011] As a further preferred embodiment of the present technical solution, both ends of the threaded rod respectively pass through a fixed seat and are rotatably connected to the fixed seat, and the threaded rod passes through a movable frame and is threadedly connected to the movable frame.

[0012] The utility model provides an optical fiber temperature sensing detection device, which has the following beneficial effects:

[0013] (1) The utility model realizes the winding and storage of the optical cable by arranging a winding shaft to cooperate with the mounting frame, and can release the optical cable according to the actual required length, so that the temperature sensing probe can be installed in a suitable temperature measurement position, and the rolled optical cable will not be intertwined, effectively avoiding the disordered connection between the connecting port and the host, and can have a certain protective effect on the optical cable; before installing the optical cable, the first rotating rod is rotated to separate the pawl from the ratchet wheel, and the restriction effect of the pawl on the ratchet wheel is released. At this time, the winding shaft can be freely rotated by the handle, and the winding shaft can be rotated clockwise by the handle. At the same time, the two sets of coil springs in the mounting bracket are tightened, one end of the optical cable is passed through the winding shaft through the socket, and the center position of the optical cable is left in the socket. At this time, the first rotating rod is loosened, and the pawl is restored to its original position under the action of the first torsion spring to limit the rotation direction of the ratchet. The handle is loosened, and the winding shaft rotates counterclockwise under the action of the coil spring to cooperate with the limit of the side rod of the mounting bracket to automatically wind the optical cable inserted in the socket on the winding shaft to complete the winding of the optical cable. When installing the temperature sensor, pull the optical cable to a certain length according to the actual installation position, and the remaining optical cables are neatly stored.

[0014] (2) The utility model can fix the temperature sensor by means of the fixed seat and the movable frame in cooperation with the wiping cotton, and can regularly clean the dust and other impurities on the temperature sensor; after the optical cable is fixed, the position where the temperature sensor needs to be installed is determined, and the temperature sensor is fixed and installed by means of the suction cup and the fixed seat. After the temperature sensor has been used for a period of time, some dust and the like are adhered to the surface of the temperature sensor. The motor drives the threaded rod to rotate, and the movable frame slides in the fixed seat under the limiting action of the fixed seat, and drives the wiping cotton to wipe the surface of the temperature sensor, thereby completing the cleaning of dust and other impurities on the surface of the temperature sensor, and reducing the influence of dust and other impurities on the signal transmission of the temperature sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the winding shaft of the utility model;

[0017] Figure 3 For the utility model Figure 2 -A magnified view of the structure;

[0018] Figure 4 For the utility model Figure 2 -Enlarged view of the structure at B;

[0019] Figure 5 It is a structural schematic diagram of the mobile frame of the utility model;

[0020] In the figure: 1. host; 2. optical cable; 3. connection port; 4. temperature sensor; 5. mounting bracket; 6. winding shaft; 7. socket; 8. handle; 9. coil spring; 10. ratchet; 11. pawl; 12. first rotating rod; 13. first torsion spring; 14. insertion rod; 15. rack; 16. wiping cotton; 17. gear; 18. second rotating rod; 19. second torsion spring; 20. compression spring; 21. block; 22. fixing seat; 23. suction cup; 24. threaded rod; 25. moving bracket. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] The utility model provides a technical solution: Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, in the present embodiment, an optical fiber temperature sensing detection device comprises a host 1 and an optical cable 2, wherein two ends of the optical cable 2 are respectively provided with a connecting port 3 and a temperature sensing probe 4, the optical cable 2 is movably connected to the host 1 through the connecting port 3, a plurality of equally spaced mounting frames 5 are provided on the host 1, a winding shaft 6 is provided on the mounting frame 5, a socket 7 is provided on the winding shaft 6, two ends of the winding shaft 6 are respectively sleeved with two groups of symmetrically distributed coil springs 9, a ratchet 10 is sleeved on the upper end of the winding shaft 6, a pawl 11 is provided in the mounting frame 5, and the pawl 11 is rotatably connected to the mounting frame 5 through a first rotating rod 12, a fixed seat 22 is provided on the right side of the host 1, a movable frame 25 is provided on the fixed seat 22, a wiping cotton 16 is fixedly installed on the movable frame 25, the movable frame 25 is slidably sleeved with the temperature sensing probe 4, two ends of the winding shaft 6 respectively penetrate the mounting frame 5 and are rotatably connected to the mounting frame 5, the inner and outer ends of the coil spring 9 are respectively fixedly connected to the winding shaft 6 and the mounting frame 5, and the upper end of the winding shaft 6 is fixed A handle 8 is installed, a pawl 11 is meshed with the ratchet 10, a first torsion spring 13 is sleeved on the first rotating rod 12, and the two ends of the first torsion spring 13 are respectively fixedly connected to the first rotating rod 12 and the mounting frame 5, and the mounting frame 5 is movably connected to the main machine 1. Two groups of symmetrically distributed plug rods 14 are provided in the main machine 1, and the two groups of plug rods 14 are movably connected to the mounting frame 5. The two groups of plug rods 14 are both slidably connected to the main machine 1, a compression spring 20 is sleeved on the plug rod 14, and a block 21 is sleeved on the plug rod 14. The two ends of the compression spring 20 are respectively fixedly connected to the block 21 and the main machine 1, a gear 17 is provided in the main machine 1, and racks 15 are provided on the two groups of plug rods 14. The gears 17 are respectively meshed with the two groups of racks 15, and the gear 17 is rotatably connected to the main machine 1 through a second rotating rod 18. A second torsion spring 19 is sleeved on the second rotating rod 18, and the two ends of the second torsion spring 19 are respectively fixedly connected to the second rotating rod 18 and the main machine 1.

[0023] By setting a winding shaft 6 and cooperating with the mounting frame 5, the optical cable 2 can be wound and stored, and the optical cable 2 can be released according to the actual required length so that the temperature sensing probe 4 can be installed in a suitable temperature measurement position. The wound optical cable 2 will not be intertwined, and the disordered connection between the connecting port 3 and the host 1 can be effectively avoided, and a certain protection effect can be provided for the optical cable 2.

[0024] like Figure 1 and Figure 5 As shown, the fixing seat 22 is fixedly installed with the temperature sensing probe 4, two groups of symmetrically distributed suction cups 23 are provided under the fixing seat 22, a threaded rod 24 is provided inside the fixing seat 22, two ends of the threaded rod 24 respectively penetrate the fixing seat 22 and are rotatably connected to the fixing seat 22, and the threaded rod 24 penetrates the moving frame 25 and is threadedly connected to the moving frame 25.

[0025] The fixed seat 22 and the movable frame 25 cooperate with the wiping cotton 16 to fix the temperature sensing probe 4 and regularly clean the dust and other impurities on the temperature sensing probe 4; after the optical cable 2 is fixed, the position where the temperature sensing probe 4 needs to be installed is determined, and the temperature sensing probe 4 is fixed and installed by using the suction cup 23 and the fixed seat 22. After the temperature sensing probe 4 has been used for a period of time, some dust and the like are adhered to the surface. The threaded rod 24 is driven by the motor to rotate, and the movable frame 25 slides in the fixed seat 22 under the limiting effect of the fixed seat 22, and drives the wiping cotton 16 to wipe the surface of the temperature sensing probe 4, thereby completing the cleaning of dust and other impurities on the surface of the temperature sensing probe 4, and reducing the influence of dust and other impurities on the signal transmission of the temperature sensing probe 4

[0026] The utility model provides an optical fiber temperature sensing detection device, and the specific working principle is as follows: before installing the optical cable 2, the first rotating rod 12 is rotated to separate the pawl 11 from the ratchet 10, and the limiting effect of the pawl 11 on the ratchet 10 is released. At this time, the winding shaft 6 can be freely rotated through the handle 8, and the winding shaft 6 is rotated clockwise by the handle 8. While the winding shaft 6 is rotated, the two sets of coil springs 9 in the mounting frame 5 are tightened, and one end of the optical cable 2 is passed through the winding shaft 6 through the socket 7, and the center position of the optical cable 2 is left in the socket 7. At this time, the first rotating rod 12 is loosened, and the pawl 11 is restored to its original position under the action of the first torsion spring 13 to limit the rotation direction of the ratchet 10, and the handle 8 is loosened. Under the action of the coil spring 9, the winding shaft 6 rotates counterclockwise to cooperate with the limit of the side rod of the mounting frame 5 to be inserted in The optical cable 2 in the socket 7 is automatically wound around the winding shaft 6 to complete the winding of the optical cable 2. When installing the temperature sensor 4, the optical cable 2 can be pulled out to a certain length according to the actual installation position, and the remaining optical cable 2 is neatly stored. After the optical cable 2 is fixed, the position where the temperature sensor 4 needs to be installed is determined, and the temperature sensor 4 is fixed and installed using the suction cup 23 and the fixing seat 22. After the temperature sensor 4 has been used for a period of time, some dust and the like are adhered to the surface. The threaded rod 24 is driven by the motor to rotate, and the movable frame 25 slides in the fixing seat 22 under the limiting action of the fixing seat 22, and drives the wiping cotton 16 to wipe the surface of the temperature sensor 4, thereby completing the cleaning of dust and other impurities on the surface of the temperature sensor 4, and reducing the influence of dust and other impurities on the signal transmission of the temperature sensor 4.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An optical fiber temperature sensing detection device, comprising a host (1) and an optical cable (2), characterized in that: The optical cable (2) is provided with a connection port (3) and a temperature sensing probe (4) at both ends thereof, respectively. The optical cable (2) is movably connected to the host (1) via the connection port (3). The host (1) is provided with a plurality of equally spaced mounting frames (5). The mounting frame (5) is provided with a winding shaft (6). The winding shaft (6) is provided with a socket (7). Two sets of symmetrically distributed coil springs (9) are sleeved at both ends of the winding shaft (6). A ratchet (10) is sleeved at the upper end of the winding shaft (6). A ratchet (11) is provided inside the mounting frame (5). The ratchet (11) is rotatably connected to the mounting frame (5) via a first rotating rod (12). A fixed seat (22) is provided on the right side of the host (1). A movable frame (25) is provided on the fixed seat (22). A wiping cotton (16) is fixedly mounted on the movable frame (25). The movable frame (25) is slidably sleeved with the temperature sensing probe (4).

2. The optical fiber temperature sensing detection device according to claim 1, characterized in that: The two ends of the winding shaft (6) respectively penetrate the mounting frame (5) and are rotatably connected to the mounting frame (5); the inner and outer ends of the coil spring (9) are respectively fixedly connected to the winding shaft (6) and the mounting frame (5); and a handle (8) is fixedly mounted on the upper end of the winding shaft (6).

3. The optical fiber temperature sensing detection device according to claim 1, characterized in that: The pawl (11) is meshedly connected to the ratchet wheel (10); a first torsion spring (13) is sleeved on the first rotating rod (12); and two ends of the first torsion spring (13) are respectively fixedly connected to the first rotating rod (12) and the mounting frame (5).

4. The optical fiber temperature sensing detection device according to claim 1, characterized in that: The mounting frame (5) is movably connected to the main machine (1); two groups of symmetrically distributed plug rods (14) are provided in the main machine (1); the two groups of plug rods (14) are movably connected to the mounting frame (5); the two groups of plug rods (14) are slidably connected to the main machine (1); compression springs (20) are sleeved on the plug rods (14); a stopper (21) is sleeved on the plug rods (14); two ends of the compression spring (20) are fixedly connected to the stopper (21) and the main machine (1) respectively; a gear (17) is provided in the main machine (1).

5. The optical fiber temperature sensing detection device according to claim 4, characterized in that: The two groups of insertion rods (14) are each provided with a rack (15), the gear (17) is respectively meshed and connected with the two groups of racks (15), the gear (17) is rotationally connected with the main machine (1) via a second rotating rod (18), a second torsion spring (19) is sleeved on the second rotating rod (18), and the two ends of the second torsion spring (19) are respectively fixedly connected with the second rotating rod (18) and the main machine (1).

6. The optical fiber temperature sensing detection device according to claim 1, characterized in that: The fixing seat (22) is fixedly mounted to the temperature sensing probe (4); two groups of symmetrically distributed suction cups (23) are provided below the fixing seat (22); and a threaded rod (24) is provided inside the fixing seat (22).

7. The optical fiber temperature sensing detection device according to claim 6, characterized in that: Both ends of the threaded rod (24) respectively penetrate the fixed seat (22) and are rotatably connected to the fixed seat (22); the threaded rod (24) penetrates the movable frame (25) and is threadedly connected to the movable frame (25).

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