A strain monitoring and alarm device for steel structure corridor

Abstract

The present invention provides a strain monitoring and alarm device for a steel structure corridor, which relates to the field of strain monitoring technology, and includes a steel structure corridor body and a monitoring and alarm device body, wherein the monitoring and alarm device body includes a monitoring mechanism and an observation component, wherein a mounting mechanism is provided at the bottom of the monitoring mechanism, and the monitoring mechanism is fixed to the surface of the steel structure corridor body through the mounting mechanism at the bottom, and a light-transmitting protective cover is provided at the top of the mounting mechanism, wherein a laser transmitter is installed inside the light-transmitting protective cover, and a gravity leveling frame is installed at the bottom of the laser transmitter. The monitoring and alarm device can directly observe the current strain state from a farther position through a laser beam, and the observation process is simple and accurate, and can accurately monitor and process slight tilt changes produced by the steel structure corridor body, thereby expanding the monitoring range, and also provides a control and detection process for the tilt warning range and a cleaning function for the surface of the light-transmitting protective cover.

Description

Technical Field

[0001] The invention relates to the technical field of strain monitoring, and in particular to a steel structure corridor strain monitoring and alarm device. Background Art

[0002] Steel structure strain monitoring refers to the process of measuring and monitoring the strain value in the steel structure. Strain measurement can monitor the quality of the steel structure during the construction process. During the production and installation of steel structures, stress concentration and deformation often occur. During the use of steel structures, strain measurement can realize the detection and evaluation of steel structures. Through long-term strain monitoring, we can understand the strain change law of steel structures during use, timely discover the degradation and damage of the structure, carry out corresponding repairs and maintenance, and maximize the service life of the structure. Therefore, the strain monitoring process of the steel structure corridor requires the use of corresponding strain monitoring alarm devices.

[0003] The strain monitoring and alarm devices in the prior art include resistance strain gauges, optical fiber strain measurement, etc., but this type of solution has extremely high requirements for installation accuracy. For the steel structure corridor structure at high altitude, the range available for installation is limited, the measurement accuracy is low, and the slight tilt of the steel structure corridor caused by external vibration cannot be accurately monitored. Since the steel structure corridor is at high altitude, it is difficult to directly check the monitoring status, so when errors occur during the monitoring process, it is difficult to be discovered in time, the monitoring device cannot be observed from a distance, and the specific degree of strain generated cannot be effectively judged. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a strain monitoring and alarm device for a steel structure corridor to solve the problems raised in the above-mentioned background technology. The present invention can directly observe the current strain state from a farther position through a laser beam. The observation process is simple and accurate. It can accurately monitor and process the slight tilt changes of the steel structure corridor body, thereby expanding the monitoring range. At the same time, it also provides a control detection process for the tilt warning range.

[0005] In order to achieve the above-mentioned purpose, the present invention is realized by the following technical scheme: a steel structure corridor strain monitoring and alarm device, comprising a steel structure corridor main body and a monitoring and alarm device main body, the monitoring and alarm device main body comprising a monitoring mechanism and an observation component, a mounting mechanism is provided at the bottom of the monitoring mechanism, and the monitoring mechanism is fixed to the surface of the steel structure corridor main body through the mounting mechanism at the bottom, a light-transmitting protective cover is provided at the top of the mounting mechanism, a laser transmitter is installed inside the light-transmitting protective cover, a gravity leveling frame is installed at the bottom of the laser transmitter, a gravity ball is installed at the bottom of the gravity leveling frame, a top plate is provided at the top of the light-transmitting protective cover, an adjustment component is installed on the surface of the top plate, a shading component is installed on the side of the light-transmitting protective cover, a light-emitting gap is provided in the middle of the shading component, and the bottom of the adjustment component is embedded in the light-emitting gap, the laser transmitter emits horizontal laser beams from both ends and irradiates from the inside of the light-emitting gap toward both ends, each laser beam irradiates the corresponding observation component surface, two observation components are provided, and each observation component is installed on the ground of a building floor away from the steel structure corridor main body.

[0006] Furthermore, the installation mechanism includes a second fixing plate and a second adjusting plate, a plurality of fixing clamps are installed on the side of the second fixing plate, a plurality of second leveling bolts are installed on the surface of the second adjusting plate, and a groove is opened in the middle of the second adjusting plate.

[0007] Furthermore, the bottom of the light-transmitting protective cover is embedded in the groove in the middle of the second adjustment plate, the fixed clamp is sleeved on the surface of the steel structure corridor body, and the top and bottom of the fixed clamp are screwed to fix the monitoring mechanism as a whole to the steel structure corridor body.

[0008] Furthermore, the adjustment component includes a motor and an inner gear ring, the motor is fixed on the surface of the top plate, a strip hole is opened on the side of the light-transmitting protective cover, extension frames are installed on both sides of the inner gear ring, a support rod is connected to the inner side of the bottom of the extension frame, an expansion rod is installed at the end of the support rod, and a sponge brush plate is installed at the end of the expansion rod.

[0009] Furthermore, the output end of the motor is connected to a driving shaft, and a gear is installed at the end of the driving shaft. The gear and the driving shaft are embedded from the surface of the top plate into the interior of the light-transmitting protective cover as a whole. The side of the gear passes outward from the strip hole, and the side of the gear is meshed with the inner gear ring part. The inner gear ring is integrally sleeved on the surface of the light-transmitting protective cover. A column is installed in the middle of the top plate, and a solar panel is installed on the top of the column.

[0010] Furthermore, the shading assembly includes a top fixing plate, a top lifting ring, a bottom fixing plate, and a bottom lifting ring. The inner sides of the top fixing plate and the bottom fixing plate are bonded to the surface of the light-transmitting protective cover as a whole. Spring rods are installed between the top fixing plate and the top lifting ring, and between the bottom fixing plate and the bottom lifting ring.

[0011] Furthermore, a gap is provided between the inner sides of the top lifting ring and the bottom lifting ring and the surface of the light-transmitting protective cover, and the surfaces of the top lifting ring and the bottom lifting ring are provided with a groove, the depth of the groove gradually increases from one end toward the other end, and the inner sides of the top lifting ring and the bottom lifting ring are provided with an inner groove.

[0012] Furthermore, the inner gear ring is placed above the top fixed plate, the light output gap is arranged between the top lifting ring and the bottom lifting ring, the expansion rod and the sponge brush plate are integrally embedded in the light output gap, and the two ends of the expansion rod are respectively embedded in the slots on the top lifting ring and the bottom lifting ring, the sponge brush plate is integrally embedded in the inner grooves of the top lifting ring and the bottom lifting ring, and the inner side of the sponge brush plate fits with the surface of the light-transmitting protective cover.

[0013] Furthermore, the observation component includes an observation frame and a light-transmitting plate. A light inlet is opened on one side of the observation frame. The light-transmitting plate is embedded in the interior of the observation frame, and a diaphragm is inserted between each layer of light-transmitting plates. The diaphragm is made of opaque material, and the color of each layer of light-transmitting plates is different.

[0014] Furthermore, a first adjustment plate is installed at the bottom of the observation frame, a level ruler and a first leveling bolt are provided on the surface of the first adjustment plate, a first fixing plate is installed at the bottom of the first adjustment plate, and the laser beams emitted from both ends of the laser transmitter are respectively irradiated into the light inlets on the two observation components.

[0015] Beneficial effects of the present invention:

[0016] 1. The steel structure corridor strain monitoring alarm device uses the laser beam generated in the monitoring mechanism to irradiate horizontally toward the observation components at both ends, and the laser emitter part can ensure that the irradiated laser beam always remains horizontal through the gravity leveling frame at the bottom. In conjunction with the observation components at both ends, the current strain state can be directly observed from a farther position, and the degree of deformation can be accurately judged. The observation process is simple and accurate.

[0017] 2. The steel structure corridor strain monitoring alarm device is equipped with a shading component in the monitoring mechanism. The shading component cooperates with the laser beam generated by the inner laser transmitter to directly emit the internal laser beam to the outside when the steel structure corridor body to be measured tilts in both directions. Therefore, outsiders can judge whether the steel structure corridor body has tilted by observing the disappearance of the laser beam, so that the strain monitoring device can obtain more comprehensive monitoring data.

[0018] 3. The strain monitoring and alarm device for the steel structure corridor is equipped with an adjusting component in the monitoring mechanism, which can control the width of the light-emitting gap between the two shading components. Therefore, when the main body of the steel structure corridor tilts, the width of the light-emitting gap can be expanded with the help of the structure until the laser beam is re-irradiated from the expanded light-emitting gap, thereby judging the degree of tilt of the main body of the steel structure corridor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of a steel structure corridor strain monitoring and alarm device after installation according to the present invention;

[0020] Figure 2 It is a structural schematic diagram of the observation component part of the present invention;

[0021] Figure 3 It is a structural schematic diagram of the monitoring mechanism part of the present invention;

[0022] Figure 4 This is a diagram showing the internal structure of the light-transmitting protective cover of the present invention;

[0023] Figure 5 for Figure 3 A magnified image of area A;

[0024] Figure 6 This is a disassembled diagram of the shading component of the present invention;

[0025] Figure 7 The figure is a disassembled diagram of the regulating component part of the present invention;

[0026] In the figure: 1. Steel structure corridor body; 2. Monitoring mechanism; 3. Observation assembly; 4. First fixing plate; 5. First adjustment plate; 6. Level ruler; 7. First leveling bolt; 8. Observation frame; 9. Light inlet; 10. Translucent plate; 11. Diaphragm; 12. Installation mechanism; 13. Translucent protective cover; 14. Shading assembly; 15. Adjustment assembly; 16. Solar panel; 17. Second fixing plate; 18. Fixed card plate; 19. Second adjustment plate; 20. Second leveling Bolts; 21. Gravity leveling frame; 22. Laser transmitter; 23. Gravity ball; 24. Light emitting gap; 25. Inner groove; 26. Card slot; 27. Top fixing plate; 28. Top lifting ring; 29. ​​Bottom fixing plate; 30. Bottom lifting ring; 31. Spring rod; 32. Top plate; 33. Column; 34. Motor; 35. Strip hole; 36. Gear; 37. Inner gear ring; 38. Extension frame; 39. Support rod; 40. Expansion rod; 41. Sponge brush plate. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0028] See also Figures 1 to 7 The present invention provides the following technical solutions: a steel structure corridor strain monitoring and alarm device, comprising a steel structure corridor body 1 and a monitoring and alarm device body, wherein the monitoring and alarm device body comprises a monitoring mechanism 2 and an observation component 3, wherein a mounting mechanism 12 is arranged at the bottom of the monitoring mechanism 2, and the monitoring mechanism 2 is fixed to the surface of the steel structure corridor body 1 through the mounting mechanism 12 at the bottom, wherein a light-transmitting protective cover 13 is arranged at the top of the mounting mechanism 12, wherein a laser emitter 22 is installed inside the light-transmitting protective cover 13, wherein a gravity leveling frame 21 is installed at the bottom of the laser emitter 22, wherein a gravity leveling frame 21 is installed at the bottom of the gravity leveling frame 21 Ball 23, a top plate 32 is provided on the top of the light-transmitting protective cover 13, an adjusting component 15 is installed on the surface of the top plate 32, a shading component 14 is installed on the side of the light-transmitting protective cover 13, a light-emitting gap 24 is provided in the middle of the shading component 14, and the bottom of the adjusting component 15 is embedded in the inside of the light-emitting gap 24, the laser emitter 22 emits horizontal laser beams from both ends and irradiates from the inside of the light-emitting gap 24 toward both ends, each laser beam irradiates the surface of the corresponding observation component 3, two observation components 3 are provided, and each observation component 3 is installed on the floor of the building away from the main body 1 of the steel structure corridor. The steel structure corridor strain monitoring and alarm device is used to monitor the strain phenomenon generated by the main part 1 of the steel structure corridor to be tested during the construction and subsequent use, and can also detect and process the deformation phenomenon caused by the tilt or warping problem of the main body 1 of the steel structure corridor due to vibration during the subsequent long-term use.

[0029] When the monitoring alarm device is installed, the monitoring mechanism 2 is directly fixed on the surface of the steel structure corridor body 1 to be tested by means of the installation mechanism 12 at the bottom. A horizontal laser beam is emitted from both sides toward the outside through the installed laser emitter 22 inside the monitoring mechanism 2, and independent observation components 3 are installed on the buildings on both sides irradiated by the laser beam. Therefore, in the initial state, the laser beam will irradiate the fixed positions of the two observation components 3. Subsequently, when the steel structure corridor body 1 is subjected to stress deformation and causes sinking, the position where the laser beam is irradiated on the observation component 3 may move downward, thereby judging whether structural strain is generated by observing the observation component 3. At the same time, in conjunction with the surface shading component 14 and the adjustment component 15, the inclination, warping and other problems of the steel structure corridor body 1 can be monitored, and additional self-cleaning and inclination degree detection processes can be provided. The gravity leveling frame 21 can realize the adaptive leveling process of the laser emitter 22 by setting the horizontal and vertical rotating shafts inside and cooperating with the gravity ball 23 at the bottom. The laser emitter and the gravity leveling frame 21 at the bottom are both existing mature technologies and do not belong to the protection scope of the present invention. Therefore, the specific internal structure and usage principle will not be described here.

[0030] In this embodiment, the installation mechanism 12 includes a second fixing plate 17 and a second adjustment plate 19, a plurality of fixing clamps 18 are installed on the side of the second fixing plate 17, a plurality of second leveling bolts 20 are installed on the surface of the second adjustment plate 19, a groove is provided in the middle of the second adjustment plate 19, the bottom of the light-transmitting protective cover 13 is embedded in the groove in the middle of the second adjustment plate 19, the fixing clamp 18 is sleeved on the surface of the steel structure corridor body 1, and the top and bottom of the fixing clamp 18 are screwed to fix the monitoring mechanism 2 as a whole on the steel structure corridor body 1. Specifically, the second fixing plate 17 is first pressed on the surface of the steel structure corridor body 1, and then the fixing clamp 18 is used to clamp the second fixing plate 17 and the top of the steel structure corridor body 1 at the same time, and finally the bolt is passed through the fixing clamp 18 to clamp and fix the steel structure corridor body 1 and the second fixing plate 17 at the same time to complete the installation, and after the detection mechanism and the observation component 3 are finally built, the second leveling bolt 20 is controlled to control the entire detection mechanism to reach a horizontal state.

[0031] In this embodiment, the adjustment component 15 includes a motor 34 and an inner gear ring 37. The motor 34 is fixed on the surface of the top plate 32. A strip hole 35 is opened on the side of the light-transmitting protective cover 13. Extension frames 38 are installed on both sides of the inner gear ring 37. The inner side of the bottom of the extension frame 38 is connected to a support rod 39. An expansion rod 40 is installed at the end of the support rod 39. A sponge brush plate 41 is installed at the end of the expansion rod 40. The output end of the motor 34 is connected to a driving shaft, and a gear 36 is installed at the end of the driving shaft. The gear 36 and the driving shaft are embedded from the surface of the top plate 32 into the interior of the light-transmitting protective cover 13 as a whole. The side of the gear 36 passes outward from the strip hole 35, and the side of the gear 36 is meshed with part of the inner gear ring 37. The inner gear ring 37 is integrally sleeved on the surface of the light-transmitting protective cover 13. A column 33 is installed in the middle of the top plate 32, and a solar panel 16 is installed on the top of the column 33. An adjusting component 15 is installed in the monitoring mechanism 2, and the width of the light emitting gap 24 between the two shading components 14 can be controlled by the adjusting component 15. Therefore, after the steel structure corridor body 1 has a tilt problem, the width of the light emitting gap 24 can be expanded with the help of this structure until the laser beam is re-irradiated from the expanded light emitting gap 24, thereby judging the degree of tilt that has occurred in the steel structure corridor body 1 at this time.

[0032] Specifically, by controlling the rotation of the motor 34, the gear 36 and the inner gear ring 37 at the bottom can be driven to rotate, so that the rotation of the inner gear ring 37 drives the extension frames 38 at both ends and the expansion rod 40, sponge brush plate 41 at the bottom to rotate, so that the expansion rod 40 and sponge brush plate 41 can be stuck in the interior of the shading component 14 and move. Through this process, the light output gap 24 in the middle of the shading component 14 can be controlled to expand or contract. Since the laser beam will irradiate outward from the inside of the transparent glass cover, the sponge brush plate 41 is pressed on the surface of the transparent protective cover 13 and rotated. Through this process, the position where the laser is irradiated on the surface of the transparent protective cover 13 can be cleaned, thereby ensuring that the laser beam will not be disturbed by dust adhering to the surface.

[0033] In this embodiment, the shading assembly 14 includes a top fixing plate 27, a top lifting ring 28, a bottom fixing plate 29, and a bottom lifting ring 30. The inner sides of the top fixing plate 27 and the bottom fixing plate 29 are bonded to the surface of the light-transmitting protective cover 13 as a whole. A spring rod 31 is installed between the top fixing plate 27 and the top lifting ring 28 and between the bottom fixing plate 29 and the bottom lifting ring 30. A gap is set between the inner sides of the top lifting ring 28 and the bottom lifting ring 30 and the surface of the light-transmitting protective cover 13, and the surfaces of the top lifting ring 28 and the bottom lifting ring 30 are provided with a slot 26, and the depth of the inside of the slot 26 increases from one end toward the other. One end gradually increases, and the inner sides of the top lifting ring 28 and the bottom lifting ring 30 are provided with inner grooves 25, and the inner gear ring 37 is placed above the top fixed plate 27, and the light emitting gap 24 is arranged between the top lifting ring 28 and the bottom lifting ring 30, and the expansion rod 40 and the sponge brush plate 41 are integrally embedded in the interior of the light emitting gap 24, and the two ends of the expansion rod 40 are respectively embedded in the grooves 26 on the top lifting ring 28 and the bottom lifting ring 30, and the sponge brush plate 41 is integrally embedded in the inner grooves 25 of the top lifting ring 28 and the bottom lifting ring 30, and the inner side of the sponge brush plate 41 is in contact with the surface of the light-transmitting protective cover 13. A shading component 14 is installed in the monitoring mechanism 2. The shading component 14 cooperates with the laser beam generated by the inner laser emitter 22 to directly emit the internally irradiated laser beam to the outside when the steel structure corridor body 1 to be measured tilts in both directions. Therefore, outsiders can judge that the steel structure corridor body 1 has tilted by observing the disappearance of the laser beam, so that the strain monitoring device can obtain more comprehensive monitoring data.

[0034] Specifically, since the top fixing plate 27 and the bottom fixing plate 29 are both fixedly connected to the light-transmitting protective cover 13, and the top fixing plate 27, the bottom fixing plate 29 and the top lifting ring 28, the bottom lifting ring 30 are connected by the spring rod 31, the top lifting ring 28, the bottom lifting ring 30, the top lifting ring 28, the bottom lifting ring 30 can all be tilted along with the detection mechanism, but the internal laser emitter 22 can be ensured to always remain horizontal through the gravity leveling frame 21 at the bottom. Therefore, when the two sides of the steel structure corridor body 1 at the bottom are tilted, the light-transmitting protective cover 13 will be driven to tilt synchronously, thereby controlling the entire shading component 14 to tilt, and the internal laser beam It still remains in a horizontal state, so the tilted light emitting gap 24 will block the laser beam irradiated in the light emitting gap 24 through the top lifting ring 28 and the bottom lifting ring 30. At this time, the external observation component 3 cannot observe the laser irradiation, so it is judged that the steel structure corridor body 1 has tilted at this time. Since the expansion rod 40 is embedded in the interior of the slot 26, and the depths of different positions in the slot 26 are different, the expansion rod 40 is controlled to rotate to different positions of the slot 26 through the adjustment component 15, and the top lifting ring 28 and the bottom lifting ring 30 can be propped up toward the top and the bottom or contracted in cooperation with the spring rod 31, thereby realizing the process of regulating the width of the light emitting gap 24.

[0035] In this embodiment, the observation component 3 includes an observation frame 8 and a light-transmitting plate 10. A light inlet 9 is provided on one side of the observation frame 8. The light-transmitting plate 10 is embedded in the observation frame 8, and a diaphragm 11 is inserted between each layer of the light-transmitting plate 10. The diaphragm 11 is made of opaque material, and the color of each layer of the light-transmitting plate 10 is different. A first adjustment plate 5 is installed at the bottom of the observation frame 8. A level ruler 6 and a first leveling bolt 7 are provided on the surface of the first adjustment plate 5. A first fixing plate 4 is installed at the bottom of the first adjustment plate 5. The laser beams emitted from the two ends of the laser emitter 22 are respectively irradiated into the light inlets 9 on the two observation components 3. The laser beam generated in the monitoring mechanism 2 is horizontally irradiated toward the observation components 3 at both ends, and the laser emitter 22 part can ensure that the irradiated laser beam is always in a horizontal state through the gravity leveling frame 21 at the bottom. The observation components 3 at both ends can directly observe the current strain state from a farther position and accurately judge the degree of deformation. The observation process is simple and accurate.

[0036] Specifically, through the above-mentioned irradiation process, after the laser beam is irradiated into the interior of the light inlet 9, it will directly irradiate the light-transmitting plate 10 of the corresponding color inside, and diffuse the light of the corresponding color toward the side through the light-transmitting plate 10. By directly observing the color of the light emitted by the observation component 3 from a distance, the position of the laser beam irradiated at this time can be judged. Therefore, the degree of subsidence of the steel structure corridor body 1 at this time can be judged more intuitively and efficiently, and each light-transmitting plate 10 is blocked by an opaque diaphragm 11, so that the color of the emitted light can be ensured to be clearer.

[0037] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention.

[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A steel structure corridor strain monitoring and alarm device, comprising a steel structure corridor body (1) and a monitoring and alarm device body, characterized in that: The monitoring alarm device body comprises a monitoring mechanism (2) and an observation component (3); a mounting mechanism (12) is provided at the bottom of the monitoring mechanism (2), and the monitoring mechanism (2) is fixed to the surface of the steel structure corridor body (1) through the mounting mechanism (12) at the bottom; a light-transmitting protective cover (13) is provided at the top of the mounting mechanism (12); a laser emitter (22) is installed inside the light-transmitting protective cover (13); a gravity leveling frame (21) is installed at the bottom of the laser emitter (22); a gravity ball (23) is installed at the bottom of the gravity leveling frame (21); a top plate (32) is provided at the top of the light-transmitting protective cover (13); an adjustment component (15) is installed on the surface of the top plate (32); and the light-transmitting protective cover ( A shading component (14) is installed on the side of the steel structure corridor (13), a light exit gap (24) is arranged in the middle of the shading component (14), and the bottom of the adjusting component (15) is embedded in the inside of the light exit gap (24), the laser emitter (22) emits horizontal laser beams from both ends and irradiates from the inside of the light exit gap (24) toward both ends, each laser beam irradiates the surface of the corresponding observation component (3), two observation components (3) are arranged, and each observation component (3) is installed on the floor of a building away from the main body of the steel structure corridor (1), the adjusting component (15) includes a motor (34) and an inner gear ring (37), the motor (34) is fixed on the surface of the top plate (32), and a strip-shaped The inner gear ring (37) has a hole (35), and extension frames (38) are installed on both sides of the inner gear ring (37). The inner side of the bottom of the extension frame (38) is connected to a support rod (39). The end of the support rod (39) is installed with an expansion rod (40). The end of the expansion rod (40) is installed with a sponge brush plate (41). The output end of the motor (34) is connected to a drive shaft, and the end of the drive shaft is installed with a gear (36). The gear (36) and the drive shaft are embedded in the interior of the light-transmitting protective cover (13) from the surface of the top plate (32). The side of the gear (36) passes outward from the strip hole (35). The side of the gear (36) is meshed with the inner gear ring (37). The inner gear ring (37) is sleeved on the light-transmitting protective cover (13). ), a column (33) is installed in the middle of the top plate (32), a solar panel (16) is installed on the top of the column (33), the shading component (14) comprises a top fixing plate (27), a top lifting ring (28), a bottom fixing plate (29), and a bottom lifting ring (30), the inner sides of the top fixing plate (27) and the bottom fixing plate (29) are bonded to the surface of the light-transmitting protective cover (13) as a whole, a spring rod (31) is installed between the top fixing plate (27) and the top lifting ring (28) and between the bottom fixing plate (29) and the bottom lifting ring (30), the observation component (3) comprises an observation frame (8) and a light-transmitting plate (10), a light inlet (9) is opened on one side of the observation frame (8),The light-transmitting plates (10) are embedded in the interior of the observation frame (8), and a diaphragm (11) is inserted between each layer of the light-transmitting plates (10), the diaphragm (11) is made of an opaque material, and the color of each layer of the light-transmitting plates (10) is different.

2. A steel structure corridor strain monitoring and alarm device according to claim 1, characterized in that: The mounting mechanism (12) comprises a second fixing plate (17) and a second adjustment plate (19); a plurality of fixing clamping plates (18) are mounted on the side of the second fixing plate (17); a plurality of second leveling bolts (20) are mounted on the surface of the second adjustment plate (19); and a groove is provided in the middle of the second adjustment plate (19).

3. A steel structure corridor strain monitoring and alarm device according to claim 2, characterized in that: The bottom of the light-transmitting protective cover (13) is embedded in the groove in the middle of the second adjustment plate (19), the fixed clamping plate (18) is sleeved on the surface of the steel structure corridor body (1), and the top and bottom of the fixed clamping plate (18) are screwed to fix the monitoring mechanism (2) as a whole on the steel structure corridor body (1).

4. A steel structure corridor strain monitoring and alarm device according to claim 3, characterized in that: A gap is provided between the inner sides of the top lifting ring (28) and the bottom lifting ring (30) and the surface of the light-transmitting protective cover (13), and the surfaces of the top lifting ring (28) and the bottom lifting ring (30) are provided with a card slot (26), the depth of the inside of the card slot (26) gradually increases from one end toward the other end, and the inner sides of the top lifting ring (28) and the bottom lifting ring (30) are provided with an inner groove (25).

5. The steel structure corridor strain monitoring and alarm device according to claim 4 is characterized in that: The inner gear ring (37) is placed above the top fixing plate (27); the light output gap (24) is arranged between the top lifting ring (28) and the bottom lifting ring (30); the expansion rod (40) and the sponge brush plate (41) are integrally embedded in the interior of the light output gap (24); and the two ends of the expansion rod (40) are respectively embedded in the slots (26) on the top lifting ring (28) and the bottom lifting ring (30); the sponge brush plate (41) is integrally embedded in the inner grooves (25) of the top lifting ring (28) and the bottom lifting ring (30); and the inner side of the sponge brush plate (41) is in contact with the surface of the light-transmitting protective cover (13).

6. The steel structure corridor strain monitoring and alarm device according to claim 1 is characterized in that: A first adjustment plate (5) is installed at the bottom of the observation frame (8), a level ruler (6) and a first leveling bolt (7) are provided on the surface of the first adjustment plate (5), a first fixing plate (4) is installed at the bottom of the first adjustment plate (5), and laser beams emitted from both ends of the laser emitter (22) are respectively irradiated into light inlets (9) on the two observation components (3).

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