Optical fiber passive temperature and vibration monitoring integrated device

Abstract

The utility model relates to an optical fiber passive temperature and vibration monitoring integrated device, which comprises a box body, a vibration sensor and a temperature probe, the vibration sensor and the temperature probe are fixed in the box body, and the temperature probe is in heat conduction connection with an object to be subjected to temperature measurement outside the box body through a heat conducting sheet. When in use, the temperature probe and the vibration sensor are placed in the box body, so that the temperature probe and the vibration sensor are placed in an integrated manner, the overall integration level is increased, corresponding optical fibers are concentrated at the box body, the optical fibers are placed in a concentrated manner, and carding and use of the optical fibers are facilitated; normal use of the temperature probe is realized; meanwhile, a heat-conducting fin, a heat-conducting nut and a heat-conducting bolt are arranged, so that the temperature probe is fixed, and meanwhile, heat-conducting connection between an object to be subjected to temperature measurement and the temperature probe is realized; through the arrangement of the limiting piece, the limiting piece is matched with the bottom wall of the box body to press the temperature probe, so that the temperature probe is fixed in the box body.

Description

Technical Field

[0001] This utility model relates to the field of sensors, and more particularly to the field of temperature and vibration sensors, specifically referring to an integrated fiber optic passive temperature and vibration monitoring device. Background Technology

[0002] Vibration and temperature monitoring plays a crucial role in industrial production. Firstly, it allows for the early detection of problems and malfunctions in machinery and equipment, reducing repair costs and time, and improving production efficiency. Secondly, monitoring vibration and temperature anomalies enables early prevention, thereby improving equipment reliability and stability, reducing equipment damage and downtime, and extending equipment lifespan and utilization efficiency. Furthermore, vibration and temperature monitoring provides a scientific basis for equipment maintenance and upkeep, assisting companies in equipment management and maintenance planning. Vibration and temperature monitoring is closely related to the safety of engineering projects in transportation, water conservancy, oil and gas, and construction; therefore, it is necessary to conduct real-time online monitoring of critical load-bearing components in large-scale projects using a series of temperature and vibration detection and analysis methods.

[0003] Temperature probes are commonly used to measure temperature, and vibration sensors are used to measure vibration intensity. However, temperature probes and vibration sensors are often placed separately, requiring staff to install and maintain them separately. This also results in a messy distribution of optical fibers connecting the temperature probes and vibration sensors. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing an integrated optical fiber passive temperature and vibration monitoring device. The temperature probe and vibration sensor are placed inside the housing, integrating them to increase the overall integration. At the same time, the corresponding optical fibers are concentrated in the housing, making it easier to manage and use the fibers.

[0005] This utility model is achieved through the following technical solution: a fiber optic passive temperature and vibration monitoring integrated device, including a housing, and a vibration sensor and a temperature probe fixed inside the housing. The temperature probe is thermally connected to the object being measured outside the housing through a heat-conducting sheet.

[0006] In use, the temperature probe and vibration sensor are placed inside the housing, integrating them to increase overall integration. The corresponding optical fibers are also concentrated in the housing for easy arrangement and use. The thermally conductive connection of the heat-conducting sheet ensures the normal operation of the temperature probe.

[0007] Preferably, the heat-conducting sheet is connected to a heat-conducting element that passes through the bottom wall of the box and is used for heat conduction.

[0008] This preferred solution allows the heat-conducting component to pass directly through the bottom wall of the housing. When the heat-conducting component comes into contact with the object being measured, the heat from the object is transferred to the temperature probe along the heat-conducting component and the heat-conducting sheet. This facilitates the temperature probe in measuring the temperature of the object. Furthermore, a certain gap can be maintained between the heat-conducting component and the object being measured. In this case, the heat from the heat-conducting component is transferred to the heat-conducting component through the air in the gap. Since the gap is relatively small, the air in the gap can also achieve rapid heat conduction.

[0009] Preferably, the heat-conducting component includes a heat-conducting bolt passing through the bottom wall of the box, and a heat-conducting nut for fixing the heat-conducting component is threaded onto the heat-conducting bolt.

[0010] This preferred solution, through the use of heat-conducting bolts and nuts, not only conducts heat but also secures the heat-conducting sheet.

[0011] Preferably, a channel for pressing and fixing the temperature probe is provided between the heat-conducting plate and the bottom wall of the housing. This preferred design allows the heat-conducting plate to not only conduct heat but also serve to fix it in place.

[0012] Preferably, the heat-conducting sheet includes a fixing plate connected to the heat-conducting bolt, and a limiting plate with a semi-annular cross-section connected to the fixing plate. The radius of the limiting plate's cross-section is adapted to the cross-sectional radius of the temperature probe at the corresponding position, and the limiting plate forms the channel with the bottom wall of the box.

[0013] In use, this utility model uses a limiting piece to press the temperature probe against the bottom wall of the box, thereby fixing the temperature probe inside the box.

[0014] Preferably, there is a certain gap between the vibration sensor and the inner wall of the box, and a temperature measuring wire connected to the temperature probe is provided in the gap, the diameter of the temperature measuring wire being adapted to the gap.

[0015] This preferred solution uses a vibration sensor in conjunction with the side wall of the housing to fix the temperature measuring wire, thereby reducing the need for fixing structures and simplifying the overall structure.

[0016] Preferably, the first side wall of the housing has two wire holes and the second side wall has one wire hole. The first side wall and the second side wall are arranged opposite to each other. The vibration input line and vibration cable connected to the vibration sensor pass through the two wire holes and exit the first side wall. The temperature measuring line of the temperature probe passes through one wire hole and exits the second side wall.

[0017] In this preferred embodiment, the temperature probe's measuring wire and the vibration sensor's vibration input wire and vibration cabling are threaded from opposite sides to avoid confusion.

[0018] Preferably, the vibration sensor is connected to the bottom wall of the housing by fixing bolts and fixing nuts.

[0019] This preferred solution allows for the easy detachable connection of the vibration sensor to the housing via the use of fixing bolts and nuts.

[0020] Preferably, the bottom wall of the housing is also provided with a fixing hole located on the outer side wall of the housing, and a first bolt for connecting to the object being measured is installed in the fixing hole. In use, this preferred solution facilitates the connection between the housing and the object being measured through the fixing hole.

[0021] Preferably, the side walls of the box are bolted to the bottom wall, and the top wall is bolted to the side walls. This preferred design facilitates the assembly of the box.

[0022] The beneficial effects of this utility model are as follows: The temperature probe and vibration sensor are integrated into the housing, increasing overall integration. Simultaneously, the corresponding optical fibers are concentrated within the housing, facilitating fiber management and use. The thermally conductive connection via the heat-conducting plate ensures normal operation of the temperature probe. Furthermore, the use of the heat-conducting plate, nut, and bolts secures the temperature probe while simultaneously establishing a thermal connection between the object being measured and the probe. A limiting plate, in conjunction with the bottom wall of the housing, presses down on the temperature probe, thus fixing it within the housing. Finally, the vibration sensor, in conjunction with the side wall of the housing, secures the temperature measuring wire, thereby reducing the need for additional fixing components and simplifying the overall structure. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0024] Figure 2 This is a top view of the present invention after the top wall has been removed;

[0025] Figure 3 This is a bottom view of the structure of this utility model;

[0026] Figure 4 This is a left-side view of the structure of this utility model;

[0027] Figure 5 This is a right-side view of the structure of this utility model;

[0028] Figure 6 This is a schematic diagram of the three-dimensional structure of the heat-conducting plate;

[0029] As shown in the figure:

[0030] 1. Box body, 2. Vibration sensor, 3. Temperature probe, 4. Thermal nut, 5. Thermal plate, 6. Vibration inlet cable, 7. Vibration cable, 8. Temperature measuring wire, 9. Thermal bolt, 10. Fixing bolt, 11. First side wall, 12. Second side wall, 13. Fixing plate, 14. Limiting plate. Detailed Implementation

[0031] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to describe the solution.

[0032] See attached document Figure 1-6 The present invention relates to an integrated optical fiber passive temperature and vibration monitoring device, comprising a housing 1, wherein the housing 1 comprises a top wall, a bottom wall, and four side walls that are bolted to the top wall and the bottom wall and are circumferentially closed. The bottom wall is also provided with a fixing hole located on the outside of the side wall of the housing 1, and a first bolt for connecting to the object being measured is provided in the fixing hole.

[0033] The top wall, bottom wall, and four side walls form the inner cavity of the box 1. The four side walls are the first side wall 11, the third side wall, the second side wall 12, and the fourth side wall, which are connected sequentially along the circumference. The shape enclosed by the four side walls is a rectangle.

[0034] A vibration sensor 2 located inside the cavity is connected to the bottom wall by a fixing bolt 10 and a fixing nut. The fixing bolt 10 passes through the bottom wall from below and enters the cavity. The vibration input line 6 and the vibration cable 7 connected to the vibration sensor 2 extend through the first side wall 11 to the outside of the cavity. The first side wall 11 has two through holes for the vibration input line 6 and the vibration cable 7 to pass through. The outer side of the first side wall 11 also has an input line mark corresponding to the vibration input line 6 and a cable mark corresponding to the vibration cable 7.

[0035] The box body 1 is also equipped with a horizontally arranged temperature probe 3, a heat-conducting plate 5 for fixing the temperature probe 3, and a heat-conducting bolt 9 and a heat-conducting nut 4 for fixing the heat-conducting plate 5.

[0036] The heat-conducting bolt 9 extends through the bottom wall of the box 1 to the outside of the box. The heat of the object being measured is transferred to the temperature probe through the heat-conducting sheet, thereby realizing the heat-conducting connection between the temperature probe and the object being measured by the heat-conducting sheet.

[0037] There are two ways to conduct heat: one is contact connection, where the heat-conducting bolt is in contact with the object being measured, so that the heat of the object being measured is transferred to the temperature probe along the heat-conducting bolt and heat-conducting plate, thus facilitating the temperature probe to measure the temperature of the object being measured.

[0038] Another method is to create a gap between the heat-conducting bolt and the object being measured. In this case, the heat from the heat-conducting bolt is transferred to the heat-conducting component through the air in the gap. Since the gap is relatively small, the air in the gap can also conduct heat quickly.

[0039] The heat-conducting plate 5 includes a fixing plate 13 connected to the heat-conducting bolt 9, and a limiting plate 14 with a semi-annular cross section connected to the fixing plate 13. The radius of the cross section of the limiting plate 14 is adapted to the cross section radius of the corresponding position of the temperature probe 3, and a channel for squeezing and fixing the temperature probe is formed between the limiting plate and the bottom wall of the box.

[0040] The fixing plate has a positioning hole for the heat-conducting bolt to pass through. The heat-conducting nut is located at the upper end of the fixing plate. The size of the heat-conducting nut is larger than the size of the positioning hole. The heat-conducting nut contacts and connects with the bottom wall of the box, thereby pressing and fixing the fixing plate to the bottom wall of the box.

[0041] There is a certain gap between the vibration sensor 2 and the inner wall of the box 1. A temperature measuring wire 8 connected to the temperature probe 3 is provided in the gap. The diameter of the temperature measuring wire 8 is adapted to the gap.

[0042] The temperature measuring wire 8 extends to the outside of the inner cavity after passing through the second side wall 12, and the second side wall 12 is provided with a wire hole for the temperature measuring wire 8 to pass through.

[0043] In use, this invention integrates the temperature probe and vibration sensor within the housing, increasing overall integration. The corresponding optical fibers are also concentrated within the housing for easier organization and use. A heat-conducting plate ensures proper functioning of the temperature probe. The use of the heat-conducting plate, nut, and bolts secures the probe while maintaining a thermally conductive connection between the probe and the object being measured. A limiting plate, engaging with the bottom wall of the housing, presses down on the temperature probe, securing it within the housing. The vibration sensor, working in conjunction with the side wall of the housing, fixes the measuring wire, reducing the need for additional fixings and simplifying the overall design.

[0044] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A fiber optic passive temperature and vibration monitoring integrated device, characterized in that: The device includes a housing (1), a vibration sensor (2) and a temperature probe (3) fixed inside the housing. The temperature probe (3) is thermally connected to the object being measured outside the housing via a heat-conducting sheet (5). The heat-conducting sheet (5) includes a fixing plate (13) connected to a heat-conducting bolt (9) and a limiting plate (14) with a semi-circular cross section connected to the fixing plate (13). The radius of the cross section of the limiting plate (14) is adapted to the cross section radius of the temperature probe (3) at the corresponding position. A channel is formed between the limiting plate and the bottom wall of the housing.

2. The fiber optic passive temperature and vibration monitoring integrated device according to claim 1, characterized in that: The heat-conducting sheet is connected to a heat-conducting component that passes through the bottom wall of the box and is used for heat conduction.

3. The fiber optic passive temperature and vibration monitoring integrated device according to claim 2, characterized in that: The heat-conducting component includes a heat-conducting bolt passing through the bottom wall of the box, and a heat-conducting nut for fixing the heat-conducting component is threaded onto the heat-conducting bolt.

4. The fiber optic passive temperature and vibration monitoring integrated device according to claim 2 or 3, characterized in that: A channel for pressing and fixing the temperature probe is provided between the heat-conducting sheet and the bottom wall of the box.

5. The fiber optic passive temperature and vibration monitoring integrated device according to claim 1, characterized in that: There is a gap between the vibration sensor (2) and the inner wall of the box (1), and a temperature measuring line (8) connected to the temperature probe (3) is provided in the gap. The diameter of the temperature measuring line (8) is adapted to the gap.

6. The fiber optic passive temperature and vibration monitoring integrated device according to claim 1, characterized in that: Two wire holes are provided on the first side wall (11) of the box body (1), and one wire hole is provided on the second side wall (12). The first side wall (11) and the second side wall (12) are arranged opposite to each other. The vibration input line (6) and vibration ribbon cable (7) connected to the vibration sensor (2) pass through the two wire holes and exit the first side wall (11). The temperature measuring line (8) of the temperature probe (3) passes through one wire hole and exits the second side wall (12).

7. The fiber optic passive temperature and vibration monitoring integrated device according to claim 1, characterized in that: The vibration sensor (2) is connected to the bottom wall of the box (1) by fixing bolts (10) and fixing nuts.

8. The fiber optic passive temperature and vibration monitoring integrated device according to claim 1, characterized in that: The bottom wall of the box (1) is also provided with a fixing hole located on the outside of the side wall of the box (1), and the fixing hole is provided with a first bolt for connecting to the object being measured.

9. The fiber optic passive temperature and vibration monitoring integrated device according to claim 1, characterized in that: The side wall of the box (1) is bolted to the bottom wall of the box (1), and the top wall of the box (1) is bolted to the side wall of the box (1).

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