Laser building displacement monitoring device

Abstract

The application relates to the technical field of monitoring devices, in particular to a laser building displacement monitoring device which comprises a mounting base, a data processing unit is mounted in the mounting base, a power supply plate is mounted at the upper end of the data processing unit, a displacement sensor is arranged at the upper end of the power supply plate, a support positioning frame is capped at the upper end of the displacement sensor, a laser emission module is clamped in the support positioning frame, a protective shell is clamped outside the mounting base, a connecting assembly is fixedly connected to the outside of the mounting base, the connecting assembly comprises a stand column, a counterweight clamping shell is rotatably connected to the outside of the stand column, a limiting clamping groove is formed at the upper end of the counterweight clamping shell, an anti-falling short rod is inserted into the limiting clamping groove, and a cover shell assembly is clamped outside the counterweight clamping shell. In the application, airflow flowing through the device is rectified and guided to a laser emission path, so that airflow disturbance on the laser propagation path is effectively dredged, airflow interference with laser beam propagation is avoided, and the risk of laser beam deflection or scattering caused by wind pressure is reduced.

Description

Technical Field

[0001] This invention relates to the field of monitoring device technology, specifically a laser building displacement monitoring device. Background Technology

[0002] A monitoring device is a device used to detect, measure and record specific physical quantities or environmental conditions in real time or periodically. When used to monitor buildings, the monitoring device can continuously monitor the settlement, displacement, tilt, cracks, stress and strain, and vibration of the building, and promptly capture structural deformation and stress changes. By detecting abnormal conditions in advance, it can avoid safety hazards such as structural instability and cracking.

[0003] The laser building displacement monitoring device uses laser ranging as its core technology. It projects a laser beam from a laser transmitter fixed at a reference point to a light spot receiving target at a key part of the building, and measures minute displacements in the horizontal or vertical direction in real time. It is suitable for monitoring the dynamic tilt and sway of high-rise buildings under wind loads.

[0004] However, when existing laser building displacement monitoring devices are used outdoors, the device body is easily affected by wind and may experience slight shaking or displacement. Furthermore, external airflow can interfere with the propagation path of the laser beam. Due to the lack of an airflow guiding structure, it is difficult to maintain the stability and accuracy of monitoring under complex wind conditions. Therefore, a laser building displacement monitoring device is proposed to address the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a laser building displacement monitoring device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A laser-based building displacement monitoring device includes a mounting base, a data processing unit installed in the mounting base, a power supply board mounted on the upper end of the data processing unit, a displacement sensor mounted on the upper end of the power supply board, a support positioning frame pressed onto the upper end of the displacement sensor, a laser emitting module clamped in the support positioning frame, a protective shell clamped on the outer side of the mounting base, and a connecting assembly fixedly connected to the outer side of the mounting base. The connecting assembly includes a column, a counterweight housing rotatably connected to the outer side of the column, a limit slot opened at the upper end of the counterweight housing, an anti-detachment short rod inserted in the limit slot, a cover assembly clamped on the outer side of the counterweight housing, the cover assembly including a cover body, a connecting rod assembly inserted inside the cover body, and a guide plate fixedly connected to the bottom end of the connecting rod assembly.

[0008] As a further optimization of the present invention, the protective shell has a notch on one side corresponding to the laser emission port of the laser emission module, the upper end face of the support positioning frame is attached to the top of the inner side of the protective shell, and the upper end of the protective shell has multiple heat dissipation holes.

[0009] As a further optimization of the present invention, the upper surface of the cover body is arc-shaped, the projection of the cover body in the vertical direction is rectangular, and the bottom end of the cover body is spaced apart from the outer side of the protective shell.

[0010] As a further optimization of the present invention, the connecting rod assembly includes a fixed short column, a lower positioning ring fixedly connected to the outer side of the fixed short column, an anti-detachment connecting rotating rod fixedly connected to the upper end of the fixed short column, an adjusting frame fixedly connected to the upper end of the lower positioning ring, a rotating column rotatably connected to the upper end of the anti-detachment connecting rotating rod, an upper positioning ring fixedly connected to the outer side of the rotating column, and a buffer rubber ring adhered to the outer side of the rotating column.

[0011] As a further optimization of the present invention, the upper end of the fixed short column is inclined, the bottom end of the rotating column is inclined, the upper end of the fixed short column and the bottom end of the rotating column are in contact, and the anti-detachment connecting rod is T-shaped in radial projection.

[0012] As a further optimization of the present invention, the upper end of the adjusting frame is fitted with the bottom end of the upper positioning ring, the rotating column is inserted into the adjusting frame, and the outer side of the buffer rubber ring bonded to the rotating column is fitted with the inner side of the adjusting frame.

[0013] As a further optimization of the present invention, the buffer rubber ring has a cavity on its inner side, the buffer rubber ring has an elliptical vertical cross-section, and a rotating pair is formed between the buffer rubber ring and the adjusting frame.

[0014] As a further optimization of the present invention, a portion of the guide plate is disposed at the bottom end of the main body of the cover, the portion of the guide plate disposed at the bottom end of the main body of the cover is arc-shaped, and a slot is formed on one side of the guide plate.

[0015] As a further optimization of the present invention, the included angle between the column and the mounting base is 90°, there are two columns, the two columns are symmetrically distributed, and the column shape is T-shaped.

[0016] As a further optimization of the present invention, the following features are provided: the width of the limiting groove is equal to the diameter of the anti-detachment short rod, the upper end of the anti-detachment short rod protrudes outward from the limiting groove, and the central axis of the anti-detachment short rod is on the same straight line as the central axis of the column.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. In this invention, the airflow flowing through the device is rectified and guided to the laser emission path by the set cover assembly, thereby effectively relieving airflow disturbance on the laser propagation path, avoiding airflow interference with laser beam propagation, and reducing the risk of laser beam deflection or scattering caused by wind pressure.

[0019] 2. In this invention, the airflow is guided by the guide plate to flow continuously along the laser emission direction, forming a directional air curtain in front of the laser emission port. This effectively prevents dust from accumulating in front of the laser emission port, avoiding the reduction in beam quality and measurement errors caused by dust adhesion. At the same time, the main body of the cover will cover the heat dissipation holes opened at the top of the protective shell to prevent rainwater or dust from entering the device.

[0020] 3. In this invention, when it is necessary to adapt to different wind directions or wind speeds, only axial rotational force needs to be applied to change the relative position of the guide plate and the main body of the casing, thereby adjusting the airflow guidance path and enabling the device to quickly respond to complex and ever-changing wind field environments. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective;

[0023] Figure 3 This is a front view of the entire invention;

[0024] Figure 4 This is a schematic diagram of the overall cross-sectional structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the overall exploded structure of the present invention;

[0026] Figure 6 This is a schematic diagram of the cover assembly structure of the present invention;

[0027] Figure 7 This is a schematic diagram of the connection component structure of the present invention;

[0028] Figure 8 This is a schematic diagram of the installation position of the connecting rod assembly of the present invention;

[0029] Figure 9 This is a schematic diagram of the connecting rod assembly structure of the present invention;

[0030] Figure 10 This is an exploded view of the connecting rod assembly of the present invention.

[0031] In the diagram: 1. Mounting base; 2. Data processing unit; 3. Power supply board; 4. Displacement sensor; 5. Laser emitting module; 6. Support positioning frame; 7. Protective shell;

[0032] 8. Cover assembly; 81. Cover body; 82. Connecting rod assembly; 821. Fixed short column; 822. Lower positioning ring; 823. Anti-detachment connecting rod; 824. Adjusting frame; 825. Rotating column; 826. Upper positioning ring; 827. Buffer rubber ring; 83. Guide plate; 84. Slot hole;

[0033] 9. Connecting components; 91. Column; 92. Counterweight housing; 93. Limiting slot; 94. Anti-detachment short rod. Detailed Implementation

[0034] Please see Figures 1-10 The present invention provides a technical solution:

[0035] A laser building displacement monitoring device includes a mounting base 1, a data processing unit 2 installed in the mounting base 1, a power supply board 3 installed on the upper end of the data processing unit 2, a displacement sensor 4 installed on the upper end of the power supply board 3, a support positioning frame 6 pressed on the upper end of the displacement sensor 4, a laser emitting module 5 clamped in the support positioning frame 6, a protective shell 7 clamped on the outside of the mounting base 1, a connecting assembly 9 fixedly connected to the outside of the mounting base 1, the connecting assembly 9 includes a column 91, a counterweight housing 92 rotatably connected to the outside of the column 91, a limit slot 93 opened on the upper end of the counterweight housing 92, an anti-detachment short rod 94 inserted in the limit slot 93, a cover assembly 8 clamped on the outside of the counterweight housing 92, the cover assembly 8 includes a cover body 81, a connecting rod assembly 82 inserted inside the cover body 81, and a guide plate 83 fixedly connected to the bottom end of the connecting rod assembly 82.

[0036] As a further implementation of this solution, a notch is provided on one side of the protective shell 7, corresponding to the laser emission port of the laser emission module 5. The upper end of the support positioning frame 6 is fitted with the inner top of the protective shell 7. Multiple heat dissipation holes are provided on the upper end of the protective shell 7. The notch can ensure that the laser emitted by the laser emission module 5 can pass through smoothly, avoiding the protective shell 7 from blocking the laser propagation path and ensuring the normal operation of the monitoring work. At the same time, the fitting design of the support positioning frame 6 with the inner top of the protective shell 7 can press and fix the laser emission module 5 in the mounting base 1, avoiding optical path deviation caused by vibration. The multiple heat dissipation holes on the upper end of the protective shell 7 can dissipate the heat generated by the power supply board 3 and the data processing unit 2 in time, preventing the performance degradation of components in high temperature environment and extending the continuous outdoor working time of the device.

[0037] As a further implementation of this solution, the upper surface of the cover body 81 is arc-shaped, and the projection of the cover body 81 in the vertical direction is rectangular. There is a gap between the bottom of the cover body 81 and the outer side of the protective shell 7. The arc-shaped upper surface can effectively reduce wind resistance and guide the airflow to flow smoothly over the surface of the cover body 81. The gap between the bottom of the cover body 81 and the outer side of the protective shell 7 forms an airflow gap, which on the one hand assists in heat dissipation, and on the other hand prevents rainwater or dust from entering the device.

[0038] As a further implementation of this solution, the connecting rod assembly 82 includes a fixed short column 821, with a lower positioning ring 822 fixedly connected to the outer side of the fixed short column 821. An anti-detachment connecting rotating rod 823 is fixedly connected to the upper end of the fixed short column 821. An adjusting bracket 824 is fixedly connected to the upper end of the lower positioning ring 822. A rotating column 825 is rotatably connected to the upper end of the anti-detachment connecting rotating rod 823. An upper positioning ring 826 is fixedly connected to the outer side of the rotating column 825. A buffer rubber ring 827 is adhered to the outer side of the rotating column 825. The upper end of the fixed short column 821 is inclined. The bottom end of the moving column 825 is inclined. The upper end of the fixed short column 821 is in contact with the bottom end of the rotating column 825. The anti-detachment connecting rod 823 has a T-shaped radial projection. The upper end of the adjusting frame 824 is in contact with the bottom end of the upper positioning ring 826. The rotating column 825 is inserted into the adjusting frame 824, and the outer side of the buffer rubber ring 827, which is bonded to the rotating column 825, is in contact with the inner side of the adjusting frame 824. The inner side of the buffer rubber ring 827 has a cavity. The vertical cross-section of the buffer rubber ring 827 is elliptical. A rotating pair is formed between the buffer rubber ring 827 and the adjusting frame 824. The inclined end faces of the fixed short column 821 and the rotating column 825 are fitted together, forming a self-locking wedge surface while achieving the rotation function. The T-shaped radial projection structure of the anti-detachment connecting rod 823 forms a mechanical stop at its lateral end, effectively preventing the rotating column 825 from axially detaching from the upper end of the anti-detachment connecting rod 823 under extreme vibration or misoperation. The end faces of the adjusting frame 824 and the upper positioning ring 826 are fitted together to form an axial support pair, transferring the gravity load of the guide plate 83 and the main body of the casing 81 to the fixed short column 821, preventing the rotating column 825 from detaching. Fatigue deformation occurs when the buffer ring 827 is subjected to bending moment alone. The interference fit design between the buffer ring 827 and the inner side of the adjusting frame 824 utilizes the viscoelastic characteristics of the rubber material to introduce controllable frictional damping in the rotating pair. This allows the angle adjustment to have appropriate operating force for precise manual control, and to achieve position self-holding by static friction after adjustment. The cavity structure inside the buffer ring 827 reduces the material stiffness while maintaining the outer contour, making the buffer ring 827 more prone to elastic deformation when subjected to radial compression from the adjusting frame 824.

[0039] As a further implementation of this solution, a portion of the guide plate 83 is located at the bottom of the main body 81 of the housing. The portion of the guide plate 83 located at the bottom of the main body 81 of the housing is arc-shaped. A slot 84 is opened on one side of the guide plate 83. The airflow flowing over the upper surface of the main body 81 of the housing can smoothly transition to the surface of the guide plate 83, guiding the airflow to the laser emission path. The slot 84 allows the airflow to flow mainly over the top of the main body 81 under headwind conditions. The slot 84 acts as a pressure relief channel to balance the air pressure on both sides of the guide plate 83. When the airflow enters through the slot 84, it is rectified by the arc-shaped guide surface of the guide plate 83 and guided to the laser emission path. This bidirectional adaptive design enables the device to maintain a stable airflow control effect in complex and ever-changing wind environments.

[0040] As a further implementation of this solution, the angle between the column 91 and the mounting base 1 is 90°. There are two columns 91, which are symmetrically distributed and T-shaped. The two symmetrically distributed T-shaped columns 91 can cooperate with the counterweight housing 92 respectively, so that the main body 81 of the cover 91, which is clamped on the counterweight housing 92, is evenly stressed when shaken by the wind, thus avoiding unilateral tilting.

[0041] As a further implementation of this solution, the width of the limiting slot 93 is equal to the diameter of the anti-detachment short rod 94. The upper end of the anti-detachment short rod 94 protrudes and is set on the outside of the limiting slot 93. The central axis of the anti-detachment short rod 94 and the central axis of the column 91 are on the same straight line. The equal width fit between the limiting slot 93 and the anti-detachment short rod 94 ensures that there is no lateral swaying gap between the two, ensuring the accurate movement trajectory of the counterweight case 92 when it swings around the column 91, so that the inertial anti-swaying effect of the counterweight case 92 can be fully utilized.

[0042] Workflow: First, select a location with a stable foundation, open view, and no construction interference. Use bolts to fix the mounting base 1, ensuring that the mounting base 1 is parallel to the horizontal plane and remains stable. Next, install the data processing unit 2 and power supply board 3 into the mounting base 1. Then, insert the laser emitting module 5 into the support positioning frame 6 from top to bottom. Next, install the upper end of the support positioning frame 6 into the protective shell 7, so that the upper end of the support positioning frame 6 fits against the inner top of the protective shell 7. Install the displacement sensor 4 into the protective shell 7 from bottom to top. Then, snap the protective shell 7 onto the mounting base 1, so that the laser emitting module 5 is fixed in the mounting base 1, and the laser emission port of the laser emitting module 5 corresponds to the notch opened on one side of the protective shell 7. Finally, snap the cover body 81 onto the counterweight clip 92 to complete the installation of the device.

[0043] The laser emission module 5 is controlled by the power supply board 3 to emit a laser. The laser passes through the notch on one side of the protective shell 7 and falls on the measured building, recording the measurement value and completing the initial positioning. When the measured building shakes, the position of the laser passing through the notch on one side of the protective shell 7 and falling on the building will change. The device will then process the reflected laser through the data processing unit and record it to determine whether the building shaking value exceeds the standard. During subsequent use, when the device shakes slightly due to wind, the counterweight housing 92 resists the shaking due to its own inertia. This causes the anti-detachment short rod 94 to swing with the column 91 fixed to the mounting base 1 and slide in the limit slot 93. At the same time, the cover body 81, which is locked on the counterweight housing 92, reduces its own displacement amplitude to a certain extent, so that the displacement sensor 4 is still blocked by the cover body 81, thus making the device more stable. If the device determines that it is not significantly affected by the shaking, the laser emitting module 5 will continue to work to ensure uninterrupted monitoring. When the device shakes violently due to wind, if the wind blows towards the laser emission point, the wind will be intercepted by the guide plate 83 after passing the upper surface of the housing body 81, and then blow along the surface of the guide plate 83. This guides the airflow and blows it out from above the laser emitting module 5 along the laser emission direction, effectively clearing the airflow disturbance in the laser propagation path and reducing the risk of laser beam deflection or scattering caused by wind pressure. At the same time, it prevents dust from accumulating in front of the laser emission port and affecting the beam quality. If the wind blows in the direction of laser emission, the wind will pass through the slot 84 and then flow along the surface of the guide plate 83, and finally blow out along the laser emission direction, making the airflow flow in the same direction as the laser, reducing the disturbance of the airflow to the laser beam and ensuring the accuracy of the monitoring data.

[0044] If it is necessary to adjust the airflow guidance path of the housing assembly 8, an axial rotational force is applied to rotate the rotating column 825, causing the bottom end of the rotating column 825 and the upper end of the fixed short column 821 to rotate relative to each other against friction. This changes the relative angle between the central axes of the rotating column 825 and the fixed short column 821. While the inner side of the adjusting frame 824 presses against the buffer ring 827, the deformation of the buffer ring 827 can also adapt to the change in the relative position between the adjusting frame 824 and the rotating column 825. At the same time, the support of the adjusting frame 824 on the upper positioning ring 826 can prevent the upper positioning ring 826 from moving downward. After the relative position between the guide plate 83 and the housing body 81 changes, the airflow guidance effect of the housing assembly 8 can be changed, thereby adapting to the monitoring needs under different wind directions or wind speeds, realizing on-site adjustment of the guiding direction and angle, and enhancing the environmental adaptability of the device in complex wind fields.

[0045] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A laser building displacement monitoring device, comprising a mounting base (1), characterized in that: The mounting base (1) is equipped with a data processing unit (2), a power supply board (3) is installed on the upper end of the data processing unit (2), a displacement sensor (4) is provided on the upper end of the power supply board (3), a support positioning frame (6) is pressed on the upper end of the displacement sensor (4), a laser emitting module (5) is installed in the support positioning frame (6), a protective shell (7) is installed on the outside of the mounting base (1), and a connecting component (9) is fixedly connected to the outside of the mounting base (1). The connecting component (9) includes a column (91), a counterweight housing (92) is rotatably connected to the outside of the column (91), a limit slot (93) is opened at the upper end of the counterweight housing (92), and an anti-detachment short rod (94) is inserted in the limit slot (93). The outer side of the counterweight housing (92) is fitted with a cover assembly (8), the cover assembly (8) includes a cover body (81), a connecting rod assembly (82) is inserted into the inner side of the cover body (81), and a guide plate (83) is fixedly connected to the bottom end of the connecting rod assembly (82).

2. The laser building displacement monitoring device according to claim 1, characterized in that: The protective shell (7) has a notch on one side corresponding to the laser emission port of the laser emission module (5), the upper surface of the support positioning frame (6) is attached to the top of the inner side of the protective shell (7), and the upper end of the protective shell (7) has multiple heat dissipation holes.

3. The laser building displacement monitoring device according to claim 1, characterized in that: The upper surface of the cover body (81) is arc-shaped, the projection of the cover body (81) in the vertical direction is rectangular, and there is a gap between the bottom of the cover body (81) and the outer side of the protective shell (7).

4. The laser building displacement monitoring device according to claim 1, characterized in that: The connecting rod assembly (82) includes a fixed short column (821), a lower positioning ring (822) is fixedly connected to the outside of the fixed short column (821), an anti-detachment connecting rod (823) is fixedly connected to the upper end of the fixed short column (821), an adjusting frame (824) is fixedly connected to the upper end of the lower positioning ring (822), a rotating column (825) is rotatably connected to the upper end of the anti-detachment connecting rod (823), an upper positioning ring (826) is fixedly connected to the outside of the rotating column (825), and a buffer rubber ring (827) is glued to the outside of the rotating column (825).

5. A laser building displacement monitoring device according to claim 4, characterized in that: The upper end of the fixed short column (821) is inclined, the bottom end of the rotating column (825) is inclined, the upper end of the fixed short column (821) and the bottom end of the rotating column (825) are in contact, and the anti-detachment connecting rod (823) is T-shaped in radial projection.

6. The laser building displacement monitoring device according to claim 4, characterized in that: The upper end of the adjusting frame (824) is attached to the bottom end of the upper positioning ring (826), the rotating column (825) is inserted in the adjusting frame (824), and the outer side of the buffer rubber ring (827) attached to the rotating column (825) is attached to the inner side of the adjusting frame (824).

7. A laser building displacement monitoring device according to claim 4, characterized in that: The buffer ring (827) has a cavity on its inner side. The vertical cross-section of the buffer ring (827) is elliptical. The buffer ring (827) and the adjusting frame (824) form a rotating pair.

8. The laser building displacement monitoring device according to claim 1, characterized in that: A portion of the guide plate (83) is disposed at the bottom end of the cover body (81). The portion of the guide plate (83) disposed at the bottom end of the cover body (81) is arc-shaped. A slot (84) is provided on one side of the guide plate (83).

9. A laser building displacement monitoring device according to claim 1, characterized in that: The included angle between the column (91) and the mounting base (1) is 90°. There are two columns (91), which are symmetrically distributed. The column (91) is T-shaped.

10. A laser building displacement monitoring device according to claim 1, characterized in that: The width of the limiting groove (93) is equal to the diameter of the anti-detachment short rod (94). The upper end of the anti-detachment short rod (94) protrudes outward from the limiting groove (93). The central axis of the anti-detachment short rod (94) is on the same straight line as the central axis of the column (91).

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