Optical fiber temperature measuring device

Abstract

The utility model discloses an optical fiber temperature measuring device which comprises a temperature measuring instrument body, a conduction optical fiber is fixedly connected to the temperature measuring instrument body, an optical probe is fixedly installed at the end, away from the temperature measuring instrument body, of the conduction optical fiber, a cylinder is fixed to one end of the optical probe, a protection tube is connected to the outer side of the cylinder in a sliding mode, and the protection tube wraps the outer side of the optical probe. A cover plate is arranged at one end of the protection tube away from the column. After temperature measurement is finished, a pinching handle is not pressed forcefully, at the moment, a protection tube is driven to move downwards under the resilience force of a second elastic piece, so that the optical probe is wrapped by the protection tube, then a rectangular plate is loosened, at the moment, a toothed plate is driven to move under the resilience force of a first elastic piece, the toothed plate moves to drive a gear and a rotating rod to rotate reversely, and the rotating rod drives a cover plate to rotate; the cover plate can seal the protection tube, and the optical probe is sealed in the protection tube, so that the optical probe is prevented from being in contact with external equipment, and the optical probe is protected.

Description

Technical Field

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

[0002] Fiber optic temperature sensing devices specifically utilize fiber optic temperature sensors in conjunction with temperature measuring devices in a control box. They take advantage of the principle that the spectrum absorbed by some substances changes with temperature, and analyze the spectrum transmitted through the fiber optic cable to understand the real-time temperature. The main materials include optical fibers, spectrometers, and transparent crystals, and they are divided into distributed and fiber optic fluorescence temperature sensors.

[0003] Publication number CN 220568290 U discloses an intelligent fiber optic temperature measurement device. The background section of this patent states that the optical probe cannot be fixed and protected; if the probe shakes and bumps into the thermometer's casing, it is easily damaged, affecting its lifespan. While the patent does protect the optical probe by providing a separate housing, the probe can still collide with the housing during transport, potentially causing damage. Utility Model Content

[0004] (I) Purpose of the utility model

[0005] In view of this, the purpose of this utility model is to propose a fiber optic temperature measuring device. The technical problem to be solved is that the optical probe in the fiber optic temperature measuring device cannot be fixed and protected. The probe shakes and collides with the outer shell of the temperature measuring instrument, which can easily cause damage to the probe and affect its service life.

[0006] (II) Technical Solution

[0007] To achieve the above technical objectives, this utility model provides a fiber optic temperature measurement device:

[0008] It includes a thermometer body, to which a conductive optical fiber is fixedly connected. An optical probe is fixedly installed at the end of the conductive optical fiber away from the thermometer body. A column is fixed at one end of the optical probe. A protective tube is slidably connected to the outside of the column, covering the outside of the optical probe. A cover plate is provided at the end of the protective tube away from the column, and the cover plate can seal the optical probe inside the protective tube. A connecting plate is fixed to the outside of the cover plate. A strip plate is fixed to the outside of the protective tube. A rotating rod is fixed to the connecting plate. The rotating rod passes through the strip plate and rotates within the strip plate. A control component for controlling the rotation of the cover plate is provided on the protective tube.

[0009] Preferably, the control component includes an L-shaped plate fixed to the protective tube, a rotating rod passing through the L-shaped plate and rotatably connected to the L-shaped plate, a gear fixed to the end of the rotating rod after passing through the L-shaped plate, and a toothed plate provided on the L-shaped plate, the toothed plate meshing with the gear.

[0010] Preferably, a first guide rod is fixed between the protective tube and the L-shaped plate. The first guide rod passes through the toothed plate, and the toothed plate is slidably fitted to the outside of the first guide rod. A rectangular groove is opened in the L-shaped plate, and a rectangular plate is fixed to the bottom of the toothed plate. The rectangular plate is slidably fitted in the rectangular groove, and both sides of the rectangular plate are in contact with the inner walls of both sides of the rectangular groove.

[0011] Preferably, a first elastic element is sleeved on the outside of the first guide rod, one end of the first elastic element abuts against the protective tube, and the other end of the first elastic element abuts against the toothed plate.

[0012] Preferably, the outer side of the column is provided with multiple travel grooves at equal intervals along its radial direction, and the inner wall of the protective tube is fixed with multiple protrusions at equal intervals along its radial direction, the protrusions slidingly engaging in the corresponding travel grooves.

[0013] Preferably, a second guide rod is fixed inside the travel groove, the second guide rod passes through the protrusion, the protrusion is slidably fitted outside the second guide rod, a second elastic member is sleeved on the outside of the second guide rod, one end of the second elastic member abuts against the protrusion, and the other end of the second elastic member abuts against the inner wall of the travel groove.

[0014] Preferably, two handles are fixed to the outside of the column, two pinch handles are fixed to the outside of the protective tube, and a storage compartment is fixed to one side of the thermometer body.

[0015] As can be seen from the above technical solution, this application has the following beneficial effects: After the temperature measurement is completed, the handle is no longer pressed. At this time, the protective tube is moved down by the rebound force of the second elastic element, so that the protective tube covers the optical probe inside. Then the rectangular plate is released. At this time, the toothed plate is moved by the rebound force of the first elastic element. The toothed plate moves until it drives the gear and the rotating rod to rotate in the opposite direction, so that the rotating rod drives the cover plate to rotate. The cover plate can then seal the protective tube. By sealing the optical probe in the protective tube, the optical probe is prevented from contacting external equipment, thereby protecting the optical probe. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] Figure 1 A schematic diagram of the structure of a fiber optic temperature measuring device provided by this utility model;

[0018] Figure 2 A partial structural schematic diagram of a fiber optic temperature measurement device provided by this utility model;

[0019] Figure 3 Provided by this utility model Figure 2 Cross-sectional schematic diagram of the middle structure;

[0020] Figure 4 Provided by this utility model Figure 2 Schematic diagram of the structure at point A;

[0021] Figure 5 Provided by this utility model Figure 2 Schematic diagram of the structure at point B;

[0022] Figure 6 Another perspective structural schematic diagram of the protective tube and cover plate provided by this utility model.

[0023] Figure descriptions: 1. Thermometer body; 2. Conductive optical fiber; 3. Optical probe; 4. Column; 5. Protective tube; 6. Cover plate; 7. Strip plate; 8. Connecting plate; 9. Rotating rod; 10. Storage compartment; 11. L-shaped plate; 12. Gear; 13. Toothed plate; 14. First guide rod; 15. First elastic element; 16. Rectangular plate; 17. Rectangular groove; 18. Stroke groove; 19. Protrusion; 20. Second guide rod; 21. Second elastic element; 22. Handle; 23. Kneading handle. Detailed Implementation

[0024] The following description is exemplary in nature and is not intended to limit the scope, application, or use of this disclosure. It should be understood that in all these figures, the same or similar reference numerals indicate the same or similar parts and features. The figures are merely schematic representations of the concept and principles of embodiments of this disclosure and do not necessarily show the specific dimensions and scale of the various embodiments of this disclosure. Certain details or structures of embodiments of this disclosure may be exaggerated in particular portions of certain figures.

[0025] Reference Figure 1-6 :

[0026] In one embodiment of this utility model, a fiber optic temperature measuring device is provided, including a thermometer body 1, a conductive fiber 2 fixedly connected to the thermometer body 1, an optical probe 3 fixedly installed at the end of the conductive fiber 2 away from the thermometer body 1, a column 4 fixedly fixed at one end of the optical probe 3, a protective tube 5 slidably connected to the outside of the column 4, the protective tube 5 covering the outside of the optical probe 3, a cover plate 6 provided at the end of the protective tube 5 away from the column 4, and the cover plate 6 can seal the optical probe 3 inside the protective tube 5, a connecting plate 8 fixedly fixed to the outside of the cover plate 6, a strip plate 7 fixedly fixed to the outside of the protective tube 5, a rotating rod 9 fixedly fixed on the connecting plate 8, the rotating rod 9 passing through the strip plate 7 and rotating within the strip plate 7, a control component for controlling the rotation of the cover plate 6 provided on the protective tube 5, two handles 22 fixedly fixed to the outside of the column 4, two pinch handles 23 fixedly fixed to the outside of the protective tube 5, and a storage compartment 10 fixedly fixed to one side of the thermometer body 1.

[0027] The control component includes an L-shaped plate 11 fixed to the protective tube 5, a rotating rod 9 passing through the L-shaped plate 11 and rotatably connected to the L-shaped plate 11, a gear 12 fixed to the end of the rotating rod 9 after passing through the L-shaped plate 11, a toothed plate 13 provided on the L-shaped plate 11, the toothed plate 13 meshing with the gear 12, a first guide rod 14 fixed between the protective tube 5 and the L-shaped plate 11, the first guide rod 14 passing through the toothed plate 13, the toothed plate 13 slidingly fitted outside the first guide rod 14, a rectangular groove 17 opened in the L-shaped plate 11, a rectangular plate 16 fixed to the bottom of the toothed plate 13, the rectangular plate 16 slidingly fitted inside the rectangular groove 17, and both sides of the rectangular plate 16 fitting against the inner walls of both sides of the rectangular groove 17.

[0028] Furthermore, a first elastic element 15 is sleeved on the outer side of the first guide rod 14. One end of the first elastic element 15 abuts against the protective tube 5, and the other end of the first elastic element 15 abuts against the toothed plate 13. Multiple travel grooves 18 are equally spaced along the radial direction on the outer side of the column 4. Multiple protrusions 19 are fixed at equal intervals along the radial direction on the inner wall of the protective tube 5. The protrusions 19 slide in the corresponding travel grooves 18. A second guide rod 20 is fixed in the travel grooves 18. The second guide rod 20 passes through the protrusions 19. The protrusions 19 slide in the outer side of the second guide rod 20. A second elastic element 21 is sleeved on the outer side of the second guide rod 20. One end of the second elastic element 21 abuts against the protrusions 19, and the other end of the second elastic element 21 abuts against the inner wall of the travel groove 18.

[0029] When using the optical probe 3 for temperature measurement, first move the rectangular plate 16 to move the toothed plate 13. The toothed plate 13 moves, causing the gear 12 to rotate. The gear 12 rotates, causing the rotating rod 9 to rotate. The rotating rod 9 rotates, causing the connecting plate 8 and the cover plate 6 to rotate. After the cover plate 6 rotates until it no longer seals the protective tube 5, move the handle 23 upwards. As the handle 23 moves upwards, it moves the protective tube 5 upwards, allowing the temperature measuring head of the optical probe 3 to exit from the protective tube 5, thus enabling temperature measurement. After the temperature measurement is complete, do not press the handle forcefully. 23. At this time, under the rebound force of the second elastic element 21, the protective tube 5 is moved down, so that the protective tube 5 covers the optical probe 3 inside. Then the rectangular plate 16 is released. At this time, under the rebound force of the first elastic element 15, the toothed plate 13 is moved. The toothed plate 13 moves until it drives the gear 12 and the rotating rod 9 to rotate in the opposite direction, so that the rotating rod 9 drives the cover plate 6 to rotate. The cover plate 6 can then seal the protective tube 5. By sealing the optical probe 3 inside the protective tube 5, the optical probe 3 is prevented from contacting external equipment, thereby protecting the optical probe 3.

[0030] It should be noted that the first elastic element 15 and the second elastic element 21 can be made of springs or other devices. In the normal state, the optical probe 3 is located inside the protective tube 5, while in the normal state, the cover plate 6 seals the protective tube 5.

[0031] The exemplary implementation of the solution proposed in this disclosure has been described in detail above with reference to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the spirit of this disclosure, and various combinations can be made to the various technical features and structures proposed in this disclosure without exceeding the protection scope of this disclosure, which is determined by the appended claims.

Claims

1. A fiber-optic temperature measuring device comprising a temperature measuring instrument body (1), characterized in that The temperature measuring instrument body (1) is fixedly connected with a conductive optical fiber (2), one end of the conductive optical fiber (2) away from the temperature measuring instrument body (1) is fixedly provided with an optical probe (3), one end of the optical probe (3) is fixedly provided with a column (4), the outer side of the column (4) is slidably connected with a protective tube (5), the protective tube (5) is wrapped outside the optical probe (3), one end of the protective tube (5) away from the column (4) is provided with a cover plate (6), and the cover plate (6) can seal the optical probe (3) in the protective tube (5), the outer side of the cover plate (6) is fixedly provided with a connecting plate (8), the outer side of the protective tube (5) is fixedly provided with a strip-shaped plate (7), the connecting plate (8) is fixedly provided with a rotating rod (9), the rotating rod (9) penetrates through the strip-shaped plate (7) and rotates in the strip-shaped plate (7), and the protective tube (5) is provided with a control assembly for controlling rotation of the cover plate (6).

2. A fiber optic temperature sensing device according to claim 1, wherein, The control assembly comprises an L-shaped plate (11) fixed to the protective tube (5), the rotating rod (9) penetrates through the L-shaped plate (11) and is rotatably connected with the L-shaped plate (11), and the end of the rotating rod (9) penetrating through the L-shaped plate (11) is fixedly provided with a gear (12), the L-shaped plate (11) is provided with a toothed plate (13), and the toothed plate (13) is engaged with the gear (12).

3. A fiber optic temperature sensing device according to claim 2, wherein, The first guide rod (14) is fixedly arranged between the protective tube (5) and the L-shaped plate (11), the first guide rod (14) penetrates through the toothed plate (13), the toothed plate (13) is slidably connected with the first guide rod (14), the L-shaped plate (11) is provided with a rectangular groove (17), the bottom of the toothed plate (13) is fixedly provided with a rectangular plate (16), the rectangular plate (16) is slidably connected with the rectangular groove (17), and the two sides of the rectangular plate (16) are in close contact with the inner walls of the two sides of the rectangular groove (17).

4. A fiber optic temperature sensing device according to claim 3, wherein, The first elastic member (15) is sleeved outside the first guide rod (14), one end of the first elastic member (15) abuts against the protective tube (5), and the other end of the first elastic member (15) abuts against the toothed plate (13).

5. The fiber optic temperature sensing device of claim 1, wherein, A plurality of stroke grooves (18) are formed on the outer side of the column (4) along the radial direction at equal intervals, a plurality of protrusions (19) are fixedly arranged on the inner wall of the protective tube (5) along the radial direction at equal intervals, and the protrusions (19) are slidably connected with the corresponding stroke grooves (18).

6. A fiber optic temperature sensing device according to claim 5, wherein, The second guide rod (20) is fixedly arranged in the stroke groove (18), the second guide rod (20) penetrates through the protrusion (19), and the protrusion (19) is slidably connected with the second guide rod (20). The second elastic member (21) is sleeved outside the second guide rod (20), one end of the second elastic member (21) abuts against the protrusion (19), and the other end of the second elastic member (21) abuts against the inner wall of the stroke groove (18).

7. The fiber optic temperature sensing device of claim 1, wherein, Two handles (22) are fixedly arranged on the outer side of the column (4), two pinch handles (23) are fixedly arranged on the outer side of the protective tube (5), and a storage bin (10) is fixedly arranged on one side of the temperature measuring instrument body (1).

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