Temperature measuring device based on optical fiber sensing test technology

Abstract

The utility model relates to the technical field of measuring devices, and discloses a temperature measuring device based on an optical fiber sensing test technology, which comprises a temperature measuring device shell and an optical fiber interface arranged on the temperature measuring device shell, and an elastic rod is fixedly arranged on the side wall surface of the temperature measuring device shell and corresponds to the position near the optical fiber interface. The elastic rod is made of elastic materials, the outer wall face of the elastic rod is sleeved with a rubber sleeve, and an optical fiber containing groove is formed in the outer wall face of the rubber sleeve. According to the utility model, the elastic column which takes the elastic rod as the center and takes the rubber sleeve as the shell is arranged outside the temperature measuring device shell close to the optical fiber interface, and the rubber sleeve is provided with the accommodating groove for winding the optical fiber, so that the optical fiber is protected, and the situations of breakage and damage of the optical fiber are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring devices, in particular to a temperature measuring device based on optical fiber sensing testing technology. Background Art

[0002] With the rapid development of modern industry and scientific research, the accuracy and reliability of temperature measurement are increasingly required. Fiber optic sensing technology has been widely used in the field of temperature measurement due to its advantages such as anti-electromagnetic interference, high sensitivity, and remote monitoring.

[0003] A temperature measurement device of a distributed optical fiber sensor is disclosed by searching Chinese patent publication number CN218895866U. Its technical solution includes a housing, an optical fiber sensor body and a sensing optical fiber, a rubber plate is installed at the bottom of the inner wall of the housing, a placement groove is provided on the upper surface of the rubber plate, the optical fiber sensor body is installed inside the placement groove, a sponge plate is installed at the top of the inner wall of the housing, a hollow plate is installed on one side of the inner side of the housing through a rotating shaft, a first rubber clamp is installed on the upper surface of the hollow plate, a spring is installed inside the hollow plate, a slider is installed at the end of the spring, a telescopic plate is installed on the outer side of the slider, a second rubber clamp is installed on the upper surface of the telescopic plate, and the sensing optical fiber is located inside the second rubber clamp.

[0004] The device fixes the optical fiber through a retractable bracket and a clamp on the bracket, but this type of bracket can only protect the optical fiber in a single direction. When the optical fiber is pulled to change direction, it cannot provide good protection and may even cause the optical fiber to be bent and damaged due to the bracket.

[0005] To this end, we propose a temperature measurement device based on optical fiber sensing test technology. Utility Model Content

[0006] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a temperature measuring device based on optical fiber sensing test technology.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a temperature measuring device based on optical fiber sensing test technology, comprising a temperature measuring device housing and an optical fiber interface arranged on the housing of the temperature measuring device, wherein an elastic rod is fixedly installed on the side wall surface of the housing of the temperature measuring device at a position corresponding to the optical fiber interface, the elastic rod is made of elastic material, a rubber sleeve is sleeved on the outer wall surface of the elastic rod, an optical fiber receiving groove is provided on the outer wall surface of the rubber sleeve, a protective sleeve is fixedly installed around the housing of the temperature measuring device corresponding to the rubber sleeve, and a side wall surface of the protective sleeve is provided with an avoidance groove with a straight groove near the optical fiber interface.

[0008] Preferably, the optical fiber receiving groove comprises a thread groove, which is spirally opened around the surface of the rubber sleeve. The outer wall surface of the rubber sleeve is also axially symmetrically provided with two groups of wire outlet grooves, which are communicated with the thread groove.

[0009] Preferably, the optical fiber receiving groove includes a first transverse groove and a second transverse groove, two groups of the second transverse grooves are symmetrically opened on the rubber sleeve, and the first transverse grooves are symmetrically opened on both side walls of the rubber sleeve.

[0010] Preferably, a tail groove is formed on the end surface of the rubber sleeve close to the housing of the temperature measuring device, and the tail groove is an annular groove.

[0011] Preferably, a sliding groove is provided inside the housing of the temperature measuring device, a rubber sleeve is movably installed in the sliding groove, the rubber sleeve can slide back and forth in the sliding groove, a spring is fixedly installed between the inner wall surface of the sliding groove and the rubber sleeve, and an elastic rod is fixedly installed in the middle of the rubber sleeve.

[0012] Preferably, a bearing is fixedly mounted on the housing of the temperature measuring device at a position corresponding to the rubber sleeve, a shaft sleeve is fixedly mounted on the outer wall surface of the bearing, and a side wall surface of the shaft sleeve is fixedly connected to the protective sleeve.

[0013] Preferably, the protective sleeve is a folding ring.

[0014] Beneficial Effects

[0015] The utility model provides a temperature measurement device based on optical fiber sensing test technology. It has the following beneficial effects:

[0016] (1) The temperature measuring device based on the optical fiber sensing test technology has an elastic column with an elastic rod as the center and a rubber sleeve as the outer shell installed near the optical fiber interface outside the housing of the temperature measuring device, and a storage groove for winding the optical fiber is opened on the rubber sleeve, so that the optical fiber is protected and the possibility of optical fiber breakage and damage is reduced.

[0017] (2) The temperature measuring device based on the optical fiber sensing test technology has a folded protective cover on the housing of the temperature measuring device. After the optical fiber is wound and stored on the outer surface of the rubber cover, the protective cover is unfolded, thereby fixing and protecting the optical fiber. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0019] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment in size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the first embodiment of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the second embodiment of the utility model;

[0023] Figure 4 This is a structural schematic diagram of the third embodiment of the present utility model.

[0024] Legend:

[0025] 1. Temperature measuring device housing; 2. Optical fiber interface; 3. Elastic rod; 4. Rubber sleeve; 5. Thread groove; 6. Wire outlet groove; 7. Tail groove; 8. Protective cover; 9. Avoidance groove; 10. First horizontal wire groove; 11. Second horizontal wire groove; 12. Sliding groove; 13. Spring; 14. Bearing; 15. Bushing. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Embodiment 1:

[0028] Temperature measurement devices based on fiber optic sensing test technology, such as Figure 1-Figure 2As shown, it includes a temperature measuring device housing 1 and an optical fiber interface 2 arranged on the temperature measuring device housing 1. The optical fiber is connected to the temperature measuring device housing 1 through the optical fiber interface 2, so as to transmit the temperature parameter. In this embodiment, in order to ensure that the connection between the optical fiber and the temperature measuring device housing 1 is firm when measuring the temperature, and the connecting end of the optical fiber will not be bent and damaged due to not being fixed, resulting in the inability to normally transmit the temperature parameter, an elastic rod 3 is fixedly installed on the side wall surface of the temperature measuring device housing 1 at a position corresponding to the optical fiber interface 2. The elastic rod 3 is made of elastic material, rubber in this embodiment, and can also be silicone, spring 13, etc. The outer wall of the elastic rod 3 is sleeved with a rubber sleeve 4, which is a long round rod made of rubber. The outer wall of the rubber sleeve 4 is provided with a threaded groove 5, which is spirally opened around the surface of the rubber sleeve 4 and is used for winding and storing optical fiber lines. Furthermore, the outer wall of the rubber sleeve 4 is also axially symmetrically provided with two groups of outlet grooves 6, which are communicated with the threaded groove 5. When in use, the optical fiber is wound around the threaded groove 5 so that the optical fiber is attached to the rubber sleeve 4. The elastic force of the rubber sleeve 4 and the elastic rod 3 is used to support and protect the optical fiber during the swinging process, and the two groups of outlet grooves 6 can independently determine the length of the optical fiber winding to adapt to different optical fiber reservation situations.

[0029] Furthermore, a tail groove 7 is provided on the end surface of the rubber sleeve 4 close to the housing 1 of the temperature measuring device. The tail groove 7 is an annular groove, and the optical fiber can be wound from here to another set of outlet grooves 6 to facilitate reversing winding.

[0030] Furthermore, a protective sleeve 8 is fixedly installed around the temperature measuring device housing 1 corresponding to the rubber sleeve 4. The protective sleeve 8 is a folding ring. When the protective sleeve 8 is unfolded, it is sleeved on the outside of the rubber sleeve 4, thereby protecting the optical fiber wound on the rubber sleeve 4. A side wall surface of the protective sleeve 8 is provided with an avoidance groove 9 with a straight groove near the optical fiber interface 2 to avoid the optical fiber line connected between the rubber sleeve 4 and the optical fiber interface 2.

[0031] Embodiment 2

[0032] Temperature measurement devices based on fiber optic sensing test technology, such as Figure 3As shown, the temperature measuring device comprises a housing 1 and an optical fiber interface 2 arranged on the housing 1 of the temperature measuring device. The optical fiber is connected to the housing 1 of the temperature measuring device through the optical fiber interface 2. An elastic rod 3 is fixedly installed on the side wall of the housing 1 of the temperature measuring device at a position corresponding to the vicinity of the optical fiber interface 2. The elastic rod 3 is made of elastic material, rubber in this embodiment, and may also be silica gel, spring 13, etc. The outer wall surface of the elastic rod 3 is sleeved with a rubber sleeve 4, which is a long round rod made of rubber. The outer wall surface of the rubber sleeve 4 is axially provided with a first transverse groove 10 and a second transverse groove 11, wherein two groups of the second transverse grooves 11 are symmetrically opened on the rubber sleeve 4, and the first transverse grooves 10 are symmetrically opened on the two side walls of the rubber sleeve 4. The optical fiber can be axially wound on the first transverse groove 10 and the second transverse groove 11, so as to protect the optical fiber line by using the support provided by the elastic rod 3 and the rubber sleeve 4.

[0033] Embodiment 3

[0034] Temperature measurement devices based on fiber optic sensing test technology, such as Figure 4 As shown, it includes a temperature measuring device housing 1 and an optical fiber interface 2 arranged on the temperature measuring device housing 1. The optical fiber is connected to the temperature measuring device housing 1 through the optical fiber interface 2. A sliding groove 12 is provided inside the temperature measuring device housing 1. A rubber sleeve 4 is movably installed in the sliding groove 12. The rubber sleeve 4 can slide back and forth in the sliding groove 12. A spring 13 is fixedly installed between the inner wall surface of the sliding groove 12 and the rubber sleeve 4. An elastic rod 3 is fixedly installed in the middle of the rubber sleeve 4. The elastic rod 3 is made of elastic material, which is rubber in this embodiment. It can also be silica gel, spring 13, etc. The outer wall of the rubber sleeve 4 is provided with a groove for winding the optical fiber. When the optical fiber is pulled by external force, an appropriate length of optical fiber is reserved in advance between the optical fiber interface 2 and the rubber sleeve 4, and the elastic force provided by the spring 13 can play a buffering role.

[0035] Furthermore, a bearing 14 is fixedly installed on the temperature measuring device housing 1 at a position corresponding to the rubber sleeve 4, a shaft sleeve 15 is fixedly installed on the outer wall of the bearing 14, a protective sleeve 8 is fixedly installed on the side wall of the shaft sleeve 15, and an avoidance groove 9 is provided on the protective sleeve 8. Through the cooperation of the bearing 14 and the shaft sleeve 15, the protective sleeve 8 can rotate circumferentially, and the wall avoidance groove 9 coincides with the storage groove provided on the rubber sleeve 4, and cannot protect and limit the optical fiber line.

[0036] The working principle of the utility model is as follows: an elastic column with an elastic rod 3 as the center and a rubber sleeve 4 as the outer shell is installed near the optical fiber interface 2 outside the housing 1 of the temperature measuring device, and a storage groove for winding the optical fiber is opened on the rubber sleeve 4, so that the optical fiber is protected and the breakage and damage of the optical fiber are reduced.

[0037] A sliding groove 12 for axial sliding of the rubber sleeve 4 is provided in the housing 1 of the temperature measuring device, and the rubber sleeve 4 and the housing 1 of the temperature measuring device are connected by a spring 13, so that the optical fiber can be protected even when it is pulled.

[0038] By arranging a folded protective cover 8 on the housing 1 of the temperature measuring device, after the optical fiber is wound and stored on the outer surface of the rubber cover 4, the protective cover 8 is unfolded, thereby fixing and protecting the optical fiber.

[0039] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A temperature measuring device based on optical fiber sensing test technology, comprising a temperature measuring device housing (1) and an optical fiber interface (2) arranged on the temperature measuring device housing (1), characterized in that: An elastic rod (3) is fixedly mounted on the side wall of the temperature measuring device housing (1) at a position near the optical fiber interface (2); the elastic rod (3) is made of elastic material; a rubber sleeve (4) is sleeved on the outer wall of the elastic rod (3); an optical fiber receiving groove is provided on the outer wall of the rubber sleeve (4); a protective sleeve (8) is fixedly mounted on the temperature measuring device housing (1) around the rubber sleeve (4); and a side wall of the protective sleeve (8) is provided with a straight-line avoidance groove (9) near the optical fiber interface (2).

2. The temperature measurement device based on optical fiber sensing test technology according to claim 1 is characterized in that: The optical fiber receiving groove comprises a thread groove (5), the thread groove (5) is spirally opened around the surface of the rubber sleeve (4), and the outer wall surface of the rubber sleeve (4) is also axially symmetrically provided with two groups of wire outlet grooves (6), which are communicated with the thread groove (5).

3. The temperature measurement device based on optical fiber sensing test technology according to claim 1 is characterized in that: The optical fiber receiving groove comprises a first transverse groove (10) and a second transverse groove (11), two groups of the second transverse grooves (11) are symmetrically arranged on the rubber sleeve (4) in a longitudinal direction, and the first transverse grooves (10) are symmetrically arranged on the two side walls of the rubber sleeve (4).

4. The temperature measurement device based on optical fiber sensing test technology according to claim 1 is characterized in that: The end surface of the rubber sleeve (4) close to the housing (1) of the temperature measuring device is provided with a tail groove (7), and the tail groove (7) is an annular groove.

5. The temperature measurement device based on optical fiber sensing test technology according to claim 1 is characterized in that: A sliding groove (12) is provided inside the housing (1) of the temperature measuring device, a rubber sleeve (4) is movably installed in the sliding groove (12), and the rubber sleeve (4) can slide back and forth in the sliding groove (12), a spring (13) is fixedly installed between the inner wall surface of the sliding groove (12) and the rubber sleeve (4), and an elastic rod (3) is fixedly installed in the middle of the rubber sleeve (4).

6. The temperature measurement device based on optical fiber sensing test technology according to claim 1, characterized in that: A bearing (14) is fixedly mounted on the housing (1) of the temperature measuring device at a position corresponding to the rubber sleeve (4); a shaft sleeve (15) is fixedly mounted on the outer wall surface of the bearing (14); and a side wall surface of the shaft sleeve (15) is fixedly connected to the protective sleeve (8).

7. The temperature measurement device based on optical fiber sensing test technology according to claim 1 is characterized in that: The protective sleeve (8) is a folding sleeve ring.

Images