Vibration measurement early warning device of distributed optical fiber sensor

Abstract

The utility model relates to the technical field of optical fiber sensors, and discloses a vibration measurement early warning device of a distributed optical fiber sensor, which comprises a shell, a vibration early warning body and a fixing module, and is characterized in that the vibration early warning body is arranged in a mounting groove of the shell; a fixing cylinder of the fixing module is arranged on the outer side wall of the shell, a sliding hole is formed in the top of the fixing cylinder, and a fixing groove communicated with the sliding hole is formed in the bottom; the piston rod comprises a sliding rod, one end of the sliding rod is provided with a rubber block, and the rubber block slides in the fixing groove and is in interference fit with the fixing cylinder; the piston rod ascends, the rubber block slides upwards, negative pressure is generated in the fixing barrel, the suction cup ascends along with the negative pressure, negative pressure is generated between the suction cup covering the opening of the fixing groove and the table top or the platform, and then the whole device is fixed through adsorption. A lap joint buckle is arranged on the top edge of the shell, the other end of the sliding rod penetrates through the sliding hole and is provided with a limiting block, the piston rod is pulled upwards, the limiting block can penetrate through the lap joint buckle and is clamped with the lap joint buckle, the mounting and dismounting steps are simple, and the maintenance efficiency of workers is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber sensors, in particular to a vibration detection and early warning device of a distributed optical fiber sensor. Background Art

[0002] Distributed fiber optic sensor vibration warning devices measure or monitor abnormal vibrations along fiber transmission paths. Using optical fiber as a sensor, they transmit light pulses at a predetermined repetition rate into the fiber. Using coherent detection technology, they detect reverse Rayleigh scattered light within the fiber, thereby detecting signal changes along the fiber. When a disturbance occurs near the optical cable, the phase of the reflected light signal changes accordingly, and the magnitude of the phase shift indicates the magnitude of the disturbance. Because light travels at a fixed speed within an optical fiber, the time it takes to receive scattered light after the light pulse is transmitted can be used to determine the location of the abnormal vibration. This is why it is also known as a positioning-based sensing technology.

[0003] The existing distributed optical fiber sensor vibration warning device usually has a complex installation structure during use, resulting in cumbersome installation and disassembly steps, which will have a certain impact on the maintenance efficiency of the staff when a fault occurs; secondly, there is a lack of a fixing mechanism, and it is placed directly on the display table, which makes it easy to fall and break when encountering problems such as collisions. Utility Model Content

[0004] The purpose of the utility model is to provide a vibration detection and warning device for a distributed optical fiber sensor, which has simple installation and disassembly steps, thereby improving the maintenance efficiency of the staff; at the same time, the vibration detection and warning device for the distributed optical fiber sensor can be fixed as a whole, effectively protecting the safety of its placement and use.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] The vibration early warning device of the distributed optical fiber sensor includes:

[0007] A housing, wherein the housing is provided with a mounting slot and a top edge of the housing is provided with a buckle;

[0008] a vibration warning body, the vibration warning body being placed in the mounting slot;

[0009] A fixing module, comprising a fixing cylinder, a suction cup, and a piston rod, wherein the fixing cylinder is disposed on the outer side wall of the housing, a sliding hole is formed at the top of the fixing cylinder, and a fixing groove connected to the sliding hole is formed at the bottom of the fixing cylinder;

[0010] The piston rod includes a sliding rod, one end of which is provided with a rubber block, which is interference-fitted with the fixed cylinder and slidably arranged in the fixed groove; the other end of the sliding rod passes through the sliding hole and is provided with a limit block, the rubber block slides upward, and the limit block can pass through the lap buckle and engage with the lap buckle;

[0011] The suction cup is sealed and fixed to the bottom notch of the fixing groove.

[0012] As an optional technical solution of the vibration detection and warning device of the distributed optical fiber sensor, an elastic member is provided between the limit block and the top of the fixing tube.

[0013] As an optional technical solution for the vibration measurement and warning device of the distributed optical fiber sensor, the limit block and the fixed tube are rotatably arranged relative to each other, the limit block is provided with ears along the length direction, the overlap buckle is provided with an overlap channel, and the width of the overlap channel is greater than the width of the limit block and less than the length of the limit block.

[0014] As an optional technical solution for the vibration detection and warning device of the distributed optical fiber sensor, a groove is provided at the bottom of the ear, and a protrusion is provided at the top of the buckle along the width direction of the buckle channel, and the groove can be selectively engaged with the protrusion.

[0015] As an optional technical solution for the vibration measurement and warning device of the distributed optical fiber sensor, a plurality of support grooves are provided at the bottom of the fixed cylinder, and the plurality of support grooves are connected to the fixed groove. A support column is slidably arranged in each of the support grooves, and a top plate is provided on the top of each of the support columns. A reset elastic member is provided between the top of the top plate and the groove wall corresponding to the top of the support groove; part of the top plate is placed in the fixed groove and selectively abuts against the rubber block.

[0016] As an optional technical solution for the vibration detection and warning device of the distributed optical fiber sensor, heat dissipation holes are provided on the bottom wall and the side walls of the shell.

[0017] As an optional technical solution for the vibration warning device of the distributed optical fiber sensor, a partition plate is slidably provided on the side wall of the shell, and the partition plate is rotatably connected to the piston rod. The partition plate can selectively cover or leak part of the heat dissipation hole.

[0018] As an optional technical solution for the vibration measurement and warning device of the distributed optical fiber sensor, the side wall of the shell is provided with a partition slot, and the partition plate is slidably arranged in the partition slot; a movable plate is provided on one side of the partition plate, the side wall of the shell is provided with a movable slot, and a clamping ring is provided at the bottom of the limit block, and the movable plate can pass through the movable slot and be rotatably clamped in the clamping ring.

[0019] As an optional technical solution for the vibration measurement and warning device of the distributed optical fiber sensor, the shell includes a bottom shell and a top shell. The top shell and the bottom shell are detachably arranged to form the installation groove. The groove direction of the installation groove is forward, and the front ends of the top shell and the bottom shell are both provided with limiting clips.

[0020] As an optional technical solution of the vibration detection and warning device of the distributed optical fiber sensor, the fixing modules are respectively provided on the left and right sides of the shell.

[0021] Beneficial effects of the utility model:

[0022] The utility model provides a distributed optical fiber sensor vibration warning device comprising a housing, a vibration warning body, and a fixing module. The vibration warning body is placed in a mounting groove provided in the housing. The fixing tube of the fixing module is provided on the outer wall of the housing. The top of the fixing tube is provided with a sliding hole. The bottom of the fixing tube is provided with a fixing groove connected to the sliding hole. The piston rod includes a sliding rod, one end of which is provided with a rubber block. The rubber block has an interference fit with the fixing tube and is slidably arranged in the fixing groove. The suction cup is sealed and fixed to the bottom notch of the fixing groove. The top edge of the housing is provided with a buckle. The other end of the sliding rod passes through the sliding hole and is provided with a limit block. When the piston rod is pulled upward, the rubber block slides upward, and the limit block can pass through the buckle and engage with the buckle. The installation and disassembly steps are simple, and the maintenance efficiency of the staff is improved. At the same time, when the piston rod rises, negative pressure is generated in the fixing tube. The suction cup rises with the negative pressure, so that negative pressure is also generated between the suction cup and the table or platform. The suction cup is then adsorbed to the table or platform, fixing the device as a whole and preventing the sensor from being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural diagram of a vibration detection and warning device of a distributed optical fiber sensor provided in a specific embodiment of the present utility model;

[0024] Figure 2 This is an exploded view of a vibration detection and warning device of a distributed optical fiber sensor provided in a specific embodiment of the present utility model;

[0025] Figure 3 This is a structural diagram of a fixed cylinder and a piston rod of a vibration detection and warning device of a distributed optical fiber sensor provided in a specific embodiment of the utility model;

[0026] Figure 4 yes Figure 3 A schematic diagram of the second perspective structure;

[0027] Figure 5This is an exploded view of the fixed cylinder and piston rod of the vibration detection and warning device of the distributed optical fiber sensor provided by the specific embodiment of the utility model;

[0028] Figure 6 This is a structural diagram of a piston rod and a partition plate of a vibration detection and warning device of a distributed optical fiber sensor provided in a specific embodiment of the utility model;

[0029] Figure 7 This is a structural diagram of the piston rod and top shell of the vibration detection and warning device of the distributed optical fiber sensor provided by the specific embodiment of the utility model;

[0030] Figure 8 It is a structural schematic diagram of the bottom shell of the vibration detection and early warning device of the distributed optical fiber sensor provided by the specific embodiment of the utility model.

[0031] In the picture:

[0032] 1. Bottom shell; 10. Limit buckle; 11. Heat dissipation hole; 12. Mobile card slot; 13. Separator card slot;

[0033] 2. Top shell;

[0034] 3. Fixing cylinder; 31. Sliding hole; 32. Fixing slot; 33. Support slot; 34. Mounting block;

[0035] 4. Suction cup;

[0036] 5. Piston rod; 51. Sliding rod; 52. Rubber block; 53. Limit block; 54. Groove; 55. Snap ring; 56. Elastic member;

[0037] 6. Buckle; 61. Bump; 7. Partition plate; 71. Moving plate; 8. Support column; 81. Top plate; 82. Reset elastic member; 9. Vibration warning body. DETAILED DESCRIPTION

[0038] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0039] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0040] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0041] In the description of this embodiment, terms such as "upper," "lower," "right," and "left" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0042] like Figures 1 to 8As shown in , the utility model discloses a vibration warning device for a distributed optical fiber sensor, including a shell, a vibration warning body 9 and a fixing module. The vibration warning body 9 is placed in a mounting groove provided on the shell, and the working principle of the vibration warning body 9 is the working principle of using optical fiber as a sensor. The fixing module includes a fixing cylinder 3, a suction cup 4 and a piston rod 5. The fixing cylinder 3 is provided on the outer wall of the shell, a sliding hole 31 is provided on the top of the fixing cylinder 3, and a fixing groove 32 connected to the sliding hole 31 is provided on the bottom of the fixing cylinder 3; the piston rod 5 includes a sliding rod 51, and a rubber block 52 is provided at one end of the sliding rod 51. The rubber block 52 is interference fit with the fixing cylinder 3, and the rubber block 52 is slidably provided in the fixing groove 32; the suction cup 4 is sealed and fixed to the bottom notch of the fixing groove 32; the top edge of the shell is provided with a buckle 6, and the other end of the sliding rod 51 passes through the sliding hole 31 and is provided with a limiting block 53. By pulling the piston rod 5 upward, the sliding rod 51 drives the rubber block 52 to slide upward, and the limit block 53 can pass through the buckle 6 and engage with the buckle 6. The installation and disassembly steps are simple, which improves the maintenance efficiency of the staff. At the same time, during the upward movement of the piston rod 5, the air in the fixed cylinder 3 is extracted, and a negative pressure is generated in the fixed groove 32. The suction cup 4 rises with the negative pressure, so that a negative pressure is also generated between the suction cup 4 and the table or platform. Then, the suction cup 4 is adsorbed to the table or platform, completing the installation, so that the vibration warning device of the distributed optical fiber sensor is fixed as a whole, effectively protecting its placement and use safety. For example, the suction cup 4 is made of a flexible material, and the outer ring of the bottom of the suction cup 4 is installed on the inner wall of the fixed groove 32. The middle part of the suction cup 4 can be deformed and can move upward and deform with the negative pressure. The bottom of the fixed cylinder 3, the bottom of the suction cup 4 and the bottom of the shell are flush.

[0043] Exemplarily, an elastic member 56 is provided between the limit block 53 and the top of the fixed cylinder 3. When the elastic member 56 is in its original length, the space between the rubber block 52 and the suction cup 4 is in a negative pressure state, and therefore, the suction cup 4 is also in a negative pressure state; by pressing the piston rod 5 downward, the elastic member 56 is compressed, the rubber block 52 moves downward, the negative pressure state is released, the air pressure between the suction cup 4 and the desktop or platform returns to normal, and the adsorption of the suction cup 4 on the desktop or platform is also released, and the vibration detection and warning device of the distributed optical fiber sensor can be disassembled and moved from the platform or desktop; when it is necessary to fix the vibration detection and warning device of the distributed optical fiber sensor, after finding the appropriate position, release the pressed piston rod 5, the elastic member 56 automatically resets, drives the rubber block 52 to move upward, and causes the suction cup 4 to be adsorbed to the desktop or platform, thereby fixing the vibration detection and warning device of the distributed optical fiber sensor.

[0044] In this embodiment, two fixing modules are respectively provided on the left and right sides of the shell. Correspondingly, two groups of fixing cylinders 3, suction cups 4 and piston rods 5 are provided, which are adsorbed and fixed on both sides of the shell at the same time, further improving the installation stability and balance of the vibration warning device of the distributed optical fiber sensor.

[0045] Specifically, the shell includes a bottom shell 1 and a top shell 2. The top shell 2 and the bottom shell 1 are detachably arranged to form an installation groove. The vibration warning body 9 is placed in the bottom shell 1, and then the top shell 2 is installed above the vibration warning body 9. The vibration warning body 9 is installed between the bottom shell 1 and the top shell 2. The slotting direction of the installation groove is forward, exposing the operating end of the vibration warning body 9, which is convenient for staff to test and monitor; the front end of the top shell 2 and the bottom shell 1 are both provided with a limiting buckle 10 to prevent the vibration warning body 9 from escaping from the front of the shell.

[0046] Exemplarily, mounting blocks 34 are installed on both sides of the fixed cylinder 3, and the two mounting blocks 34 are installed on one side of the bottom shell 1 by bolts. The limit block 53 is rotatably arranged relative to the fixed cylinder 3, and the limit block 53 is provided with ears along the length direction. The lap buckle 6 is provided on the top shell 2, and the lap buckle 6 is provided with an overlapping channel. The width of the overlapping channel is greater than the width of the limit block 53 and less than the length of the limit block 53. When the sliding rod 51 moves upward, the limit block 53 passes through the overlapping channel of the lap buckle 6, and then the sliding rod 51 is rotated so that the limit block 53 is perpendicular to the overlapping channel, and the ears of the limit block 53 overlap the top of the lap buckle 6, and then the bottom shell 1 and the top shell 2 are installed together, and at the same time, the suction cup 4 is always adsorbed on the desktop or platform. The bottom shell 1 and the top shell 2 are fixed by the piston rod 5 and the lap buckle 6, which further facilitates the staff to disassemble and repair the vibration warning device of the distributed optical fiber sensor. Specifically, Figure 7 As shown in FIG, the hook and loop buckle 6 can be specifically a U-shaped buckle.

[0047] Furthermore, two ears are respectively provided at both ends of the limit block 53, and grooves 54 are opened at the bottom of the two ears. Correspondingly, two protrusions 61 are provided on both sides of the overlap channel along the width direction of the overlap channel at the top of the overlap buckle 6. When the limit block 53 is rotated 90° and is perpendicular to the overlap channel, the two protrusions 61 can be respectively engaged in the two grooves 54, thereby limiting the limit block 53 and preventing the limit block 53 from rotating again.

[0048] Specifically by Figure 4 and Figure 5As shown in FIG, the bottom of the fixed cylinder 3 is provided with a plurality of support grooves 33, which are all connected to the fixed groove 32. A support column 8 is slidably disposed in each support groove 33. A top plate 81 is disposed on the top of each support column 8. A reset elastic member 82 is disposed between the top of the top plate 81 and the groove wall at the top of the corresponding support groove 33. A portion of the top plate 81 is placed in the fixed groove 32 and selectively abuts against the bottom of the rubber block 52. When the limit block 53 is overlapped with the top of the buckle 6, the reset elastic member 82 securely pulls the top plate 81, causing the support column 8 to fully retract into the support groove 33, and the bottom of the bottom shell 1 directly and stably contacts the ground. When the limit block 53 is released from the buckle 6, the bottom of the rubber block 52 descends against the top plate 81, and the top plate 81 drives the support column 8 out of the support groove 33. The support column 8 is supported on the table or platform, causing the bottom shell 1 to be separated from the table or platform, and at the same time, it can help to release the adhesion of the suction cup 4 to the table or platform.

[0049] In this embodiment, the bottom and side walls of the housing are provided with heat dissipation holes 11. Heat generated by the vibration warning body 9 is dissipated through the heat dissipation holes 11, preventing the vibration warning body 9 from overheating during use and causing damage. The support column 8 is supported on a table or platform, thereby raising the bottom of the bottom housing 1 off the table or platform, and the heat dissipation holes 11 on the bottom of the bottom housing 1 can dissipate heat.

[0050] Optionally, a partition plate 7 is slidably provided on the side wall of the bottom shell 1, and the partition plate 7 is rotatably connected to the piston rod 5. The partition plate 7 can selectively seal and cover or leak part of the heat dissipation hole 11. Specifically, a partition slot 13 is provided on the side wall of the shell, and the partition plate 7 is slidably provided in the partition slot 13; a movable plate 71 is provided on one side of the partition plate 7, and a movable slot 12 is provided on the side wall of the shell, and the movable plate 71 is slidably installed in the movable plate 71 slot; a retaining ring 55 is provided at the bottom of the limit block 53, and the movable plate 71 can pass through the movable slot 12 and be rotatably engaged in the retaining ring 55. The retaining ring 55 limits the top and bottom of the movable plate 71. The retaining ring 55 can rotate, but the movable plate 71 is limited by the movable plate 71 slot, and the movable plate 71 will not rotate with the retaining ring 55. The partition plate 7 is connected to the piston rod 5 through the movable plate 71 and fixedly displaced synchronously. When the vibration warning device of the distributed optical fiber sensor is installed in place, the sliding rod 51 rises so that the partition plate 7 follows the sliding rod 51 through the movable plate 71 and the retaining ring 55. The partition plate 7 rises to the top of the partition plate 7 slot, so that its heat dissipation hole 11 is connected with the interior of the shell, which is convenient for the vibration warning body 9 to dissipate heat; after the sliding rod 51 is separated from the U-shaped buckle, the partition plate 7 follows the sliding rod 51 to descend, and the partition plate 7 seals the heat dissipation hole 11.

[0051] In this embodiment, the elastic member 56 is installed between the bottom of the clamping ring 55 and the top of the fixing tube 3. In order to further ensure the stability of the adsorption of the suction cup 4, the elastic member 56 is set to its original length and the suction cup 4 is in a released state.

[0052] Start installing the vibration detection and warning device of the distributed optical fiber sensor. First, pull the limit block 53 to move it above the buckle 6, so that the elastic member 56 is in an extended state, and rotate the limit block 53 90° so that its protrusion 61 is correspondingly engaged with the groove 54, lower the limit block 53, and the bottom of the limit block 53 abuts against the top of the buckle 6, and the bottom shell 1 and the top shell 2 are installed; at the same time, the reset elastic member 82 pulls the top plate 81, and the support column 8 retracts back into the support groove 33; because the sliding rod 51 drives the rubber block 52 to slide upward when it rises, the middle part of the suction cup 4 moves upward, and then negative pressure is generated inside the suction cup 4, and the suction cup 4 is adsorbed to the table or platform, so that the vibration detection and warning device of the distributed optical fiber sensor is fixed on the table or platform, and the installation is completed.

[0053] When disassembling the vibration warning device of the distributed optical fiber sensor, it is necessary to first pull the limit block 53 to cancel the engagement between the protrusion 61 and the groove 54, and then rotate the rotary limit block 53 to disengage the limit block 53 from the limit of the buckle 6; the elastic member 56 begins to rebound and restore its deformation, pulling the sliding rod 51 down through the snap ring 55, and the bottom shell 1 and the top shell 2 are disassembled; at the same time, the rubber block 52 descends, and the air pressure in the suction cup 4 returns to normal, releasing the adsorption on the desktop or platform; and, the bottom of the rubber block 52 descends against the top plate 81, and the top plate 81 drives the support column 8 to move out of the support groove 33, and the support column 8 is supported on the desktop or platform, so that the bottom shell 1 is separated from the desktop or platform, and then the heat dissipation holes 11 at the bottom of the bottom shell 1 can dissipate heat.

[0054] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A distributed optical fiber sensor vibration warning device, characterized in that: include: A housing, wherein the housing is provided with a mounting groove, and a top edge of the housing is provided with a lap buckle (6); A vibration warning body (9), the vibration warning body (9) being placed in the mounting groove; A fixing module, the fixing module comprising a fixing cylinder (3), a suction cup (4) and a piston rod (5); the fixing cylinder (3) is arranged on the outer side wall of the shell; a sliding hole (31) is provided on the top of the fixing cylinder (3); and a fixing groove (32) connected to the sliding hole (31) is provided on the bottom of the fixing cylinder (3); The piston rod (5) includes a sliding rod (51), one end of which is provided with a rubber block (52), the rubber block (52) having an interference fit with the fixed cylinder (3), and the rubber block (52) is slidably arranged in the fixed groove (32); the other end of the sliding rod (51) passes through the sliding hole (31) and is provided with a limiting block (53), the rubber block (52) slides upward, and the limiting block (53) can pass through the lap buckle (6) and be engaged with the lap buckle (6); The suction cup (4) is sealed and fixed to the bottom notch of the fixing groove (32).

2. The distributed optical fiber sensor vibration detection and warning device according to claim 1, characterized in that: An elastic member (56) is provided between the limiting block (53) and the top of the fixing cylinder (3).

3. The vibration detection and warning device of the distributed optical fiber sensor according to claim 1, characterized in that: The limit block (53) and the fixed cylinder (3) are rotatably arranged relative to each other, the limit block (53) is provided with ears along the length direction, the overlap buckle (6) is provided with an overlap channel, and the width of the overlap channel is greater than the width of the limit block (53) and less than the length of the limit block (53).

4. The distributed optical fiber sensor vibration detection and warning device according to claim 3, characterized in that: A groove (54) is provided at the bottom of the ear portion, and a protrusion (61) is provided at the top of the lap buckle (6) along the width direction of the lap channel. The groove (54) can be selectively engaged with the protrusion (61).

5. The distributed optical fiber sensor vibration detection and warning device according to claim 1, characterized in that: The bottom of the fixed cylinder (3) is provided with a plurality of support grooves (33), and the plurality of support grooves (33) are all connected to the fixed groove (32). A support column (8) is slidably provided in each support groove (33), and a top plate (81) is provided on the top of each support column (8). A reset elastic member (82) is provided between the top of the top plate (81) and the groove wall corresponding to the top end of the support groove (33); part of the top plate (81) is placed in the fixed groove (32) and selectively abuts against the rubber block (52).

6. The distributed optical fiber sensor vibration detection and warning device according to claim 1, characterized in that: The bottom wall and side walls of the shell are both provided with heat dissipation holes (11).

7. The vibration detection and warning device of the distributed optical fiber sensor according to claim 6, characterized in that: A partition plate (7) is slidably provided on the side wall of the shell, and the partition plate (7) is rotatably connected to the piston rod (5). The partition plate (7) can selectively cover or expose part of the heat dissipation hole (11).

8. The distributed optical fiber sensor vibration detection and warning device according to claim 7, characterized in that: The side wall of the shell is provided with a separation slot (13), and the separation plate (7) is slidably arranged in the separation slot (13); a movable plate (71) is provided on one side of the separation plate (7), and the side wall of the shell is provided with a movable slot (12). A snap ring (55) is provided at the bottom of the limit block (53), and the movable plate (71) can pass through the movable slot (12) and be rotatably engaged in the snap ring (55).

9. The distributed optical fiber sensor vibration detection and warning device according to any one of claims 1 to 8, characterized in that: The housing comprises a bottom shell (1) and a top shell (2); the top shell (2) and the bottom shell (1) are detachably arranged around each other to form the installation slot; the installation slot is opened forward; and the front ends of the top shell (2) and the bottom shell (1) are both provided with limit buckles (10).

10. The distributed optical fiber sensor vibration detection and warning device according to any one of claims 1 to 8, characterized in that: The fixing modules are respectively arranged on the left and right sides of the shell.

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