Intelligent laser monitor for dynamically monitoring tunnel construction dust

Abstract

The utility model relates to the technical field of dust monitors, in particular to an intelligent laser monitor for dynamically monitoring dust in tunnel construction, which comprises a monitor, the monitor is provided with a protection assembly, and the protection assembly is used for isolating the bottom of the monitor from the tunnel ground and preventing dust from entering in direct contact with the tunnel ground. The protection assembly comprises a first notch in the top of the monitor, cavities are formed in the two sides of the monitor, second notches penetrate through the tops of the cavities, a damping rotating shaft is rotationally connected into the first notch, a handle is fixed to the outer portion of the damping rotating shaft, and after the monitor is lifted by the protection assembly through an isolation block, a bottom suspended structure is formed. And a certain gap is kept between the instrument and the ground. According to the design, on one hand, direct contact of ground dust is blocked, on the other hand, dust is difficult to vertically rise to enter an instrument (the dust is easy to settle under the influence of gravity) by utilizing air flow, and meanwhile, the supporting area of the isolation block is small, so that the contact surface with the ground dust is further reduced.

Description

Technical Field

[0001] This utility model relates to the field of dust monitoring instruments, and in particular to an intelligent laser monitoring instrument for dynamic monitoring of dust during tunnel construction. Background Technology

[0002] With the continuous advancement of urbanization, the construction scale of subway and highway tunnel facilities is constantly expanding, and tunnel excavation engineering has been widely applied. However, the tunnel excavation process generates a large amount of dust, posing a serious threat to the health and safety of construction workers and environmental protection. Harmful suspended particles in the dust can not only cause respiratory diseases but also lead to occupational health accidents. Therefore, it is necessary to use dust monitoring instruments to monitor dust in real time, achieve dynamic monitoring of dust, and then implement corresponding dust suppression measures based on the feedback from the dust monitoring instruments.

[0003] Patent number CN205483931U proposes "a dust monitor", which includes a housing with a handle on the top, an LCD screen on the front, a power interface on the side, a detection window on the front, and a detection membrane attached to the detection window, forming a sealed connection. A filter membrane is provided outside the detection membrane. However, this laser monitor is generally placed directly on the tunnel floor or construction platform during monitoring. When placed, dust comes into direct contact with the laser monitor, which can easily cause dust to enter the interior through the gaps, affecting its service life. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of the prior art by proposing an intelligent laser monitoring instrument for dynamic monitoring of dust during tunnel construction.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an intelligent laser monitoring instrument for dynamic monitoring of dust during tunnel construction, comprising: a monitoring instrument, wherein the monitoring instrument is provided with a protective component, the protective component being used to isolate the bottom of the monitoring instrument from the tunnel floor to prevent direct contact with the tunnel floor and dust from entering.

[0006] As a further embodiment of this utility model, the protective component includes a first slot on the top of the monitor, cavities on both sides of the monitor, a second slot penetrating through the top of the cavity, a damping shaft rotatably connected inside the first slot, a handle fixed to the outside of the damping shaft, the handle being located inside the first slot, and both ends of the damping shaft being located inside the second slot.

[0007] As a further embodiment of this utility model, the inner wall of the cavity is provided with a sliding groove, a slider is slidably connected inside the sliding groove, a support plate is fixed outside the slider, a first connecting rod is fixed at both ends of the damping shaft, a second connecting rod is rotatably connected to the top of the support plate, and the bottom of the first connecting rod is rotatably connected to the top of the second connecting rod.

[0008] As a further embodiment of this utility model, a third slot is provided through the bottom of the cavity, and an isolation block is fixed to the bottom of the support plate, with the isolation block extending through the third slot.

[0009] As a further embodiment of this utility model, the back of the monitor is provided with a placement slot, and a cleaning component is provided inside the placement slot. The cleaning component includes a pad for the placement slot, and the pad divides the interior of the placement slot into three placement slots. Each placement slot contains a cleaning cloth, a spray bottle, and a cleaning brush.

[0010] As a further embodiment of this utility model, slots are provided at the four corners of the placement groove, and a magnetic layer is attached to the inner wall of the slot.

[0011] As a further embodiment of this utility model, the placement slot is provided with a cover plate, and a plug corresponding to the slot is fixed on the back of the cover plate. The plug is made of iron.

[0012] The intelligent laser monitoring instrument for dynamic monitoring of dust during tunnel construction proposed in this utility model has the following advantages:

[0013] 1. Through the designed protective components, pulling the handle upwards rotates the damping shaft, allowing the monitor to be lifted and placed at a suitable dust monitoring position in the tunnel, thus achieving portability. When the damping shaft rotates, the first connecting rod at both ends rotates, driving the second connecting rod to rotate. This causes the second connecting rod to move the support plate downwards along the slide groove via a slider, thereby driving the isolation block at the bottom of the support plate to extend from the third slot, raising the monitor and isolating it from the ground to prevent dust intrusion. The damping characteristics of the damping shaft fix the handle's unfolding angle, maintaining the stable support of the isolation block. When the handle is rotated in the opposite direction, it retracts into the first slot, the connecting rod structure causes the support plate to retract, and the isolation block retracts into the cavity, resetting the device. The entire process, through mechanical linkage, enables rapid lifting and lowering of the monitor, effectively preventing ground dust intrusion.

[0014] 2. The cleaning components are designed to divide the storage compartment into three independent areas, which respectively store cleaning cloths, spray bottles, and cleaning brushes. This facilitates the cleaning and maintenance of the monitor's laser lens, casing, screen, and other parts. When in use, remove the magnetically secured cover to open the storage compartment. At this time, the insert will detach from the slot. The magnetic layer inside the slot allows the cover to open and close quickly, ensuring efficient access to the appropriate tools during maintenance. The spray bottle can spray cleaning agents to dissolve dust, the cleaning brush can remove stubborn stains, and the cleaning cloth is used to wipe away residual liquids and fine particles. Attached Figure Description

[0015] Figure 1 This is an appearance drawing of the detector proposed in this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the cavity proposed in this utility model;

[0017] Figure 3 This is a schematic diagram of the wind turbine assembly structure proposed in this utility model;

[0018] Figure 4 This is a schematic diagram of the placement groove and cover plate structure proposed in this utility model;

[0019] Figure 5 This is a schematic diagram of the structure at point A proposed in this utility model;

[0020] Figure 6 This is a schematic diagram of the internal structure of the placement slot proposed in this utility model.

[0021] In the diagram: 1. Monitor; 2. First slot; 3. Cavity; 4. Second slot; 5. Damping shaft; 6. Handle; 7. Slide; 8. Slider; 9. Support plate; 10. First connecting rod; 11. Second connecting rod; 12. Third slot; 13. Isolation block; 14. Placement slot; 15. Pad; 16. Cleaning cloth; 17. Spray bottle; 18. Cleaning brush; 19. Slot; 20. Cover plate; 21. Insert block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0024] An intelligent laser monitoring instrument for dynamic monitoring of dust during tunnel construction includes: a monitoring instrument 1, wherein the monitoring instrument 1 is equipped with a protective component, the protective component is used to isolate the bottom of the monitoring instrument 1 from the tunnel floor to prevent dust from entering through direct contact with the tunnel floor, the protective component includes a first slot 2 at the top of the monitoring instrument 1, cavities 3 on both sides of the monitoring instrument 1, a second slot 4 penetrating through the top of the cavity 3, a damping shaft 5 rotatably connected inside the first slot 2, a handle 6 fixed to the outside of the damping shaft 5, and the handle 6 being located inside the first slot 2, and both ends of the damping shaft 5 being located inside the second slot 4.

[0025] Furthermore, the inner wall of the cavity 3 is provided with a sliding groove 7, and a slider 8 is slidably connected inside the sliding groove 7. A support plate 9 is fixed outside the slider 8. The two ends of the damping shaft 5 are fixed with a first connecting rod 10. The top of the support plate 9 is rotatably connected with a second connecting rod 11. The bottom of the first connecting rod 10 is rotatably connected with the top of the second connecting rod 11. The bottom of the cavity 3 is penetrated by a third slot 12. The bottom of the support plate 9 is fixed with an isolation block 13, and the isolation block 13 penetrates the third slot 12.

[0026] Specifically, by pulling the handle 6 upwards, the damping shaft 5 rotates, and the monitor 1 is lifted and placed in a suitable dust monitoring position in the tunnel, thus achieving portability of the monitor 1. When the damping shaft 5 rotates, the first connecting rod 10 at both ends rotates accordingly, driving the second connecting rod 11 to rotate. The second connecting rod 11 drives the support plate 9 to slide downwards along the slide groove 7 via the slider 8, thereby driving the isolation block 13 at the bottom of the support plate 9 to extend out from the third slot 12, raising the monitor 1 as a whole and isolating it from the ground to prevent dust intrusion. The damping characteristics of the damping shaft 5 can fix the unfolding angle of the handle 6, maintaining the stable support state of the isolation block 13. When the handle 6 is rotated in the opposite direction, the handle 6 retracts into the inside of the first slot 2, the connecting rod structure drives the support plate 9 to retract, and the isolation block 13 retracts into the cavity 3, realizing the device reset. The entire process achieves rapid lifting and lowering of the monitor through mechanical linkage, effectively preventing ground dust intrusion.

[0027] Next, a placement slot 14 is provided on the back of the monitor 1. A cleaning component is provided inside the placement slot 14. The cleaning component includes a pad 15 for the placement slot 14, and the pad 15 divides the interior of the placement slot 14 into three placement compartments. A cleaning cloth 16, a spray bottle 17, and a cleaning brush 18 are placed inside each placement compartment. Slots 19 are provided at the four corners of the placement slot 14. A magnetic layer is attached to the inner wall of the slot 19. A cover plate 20 is provided on the placement slot 14. An insert 21 corresponding to the slot 19 is fixed to the back of the cover plate 20. The material of the insert 21 is... Made of iron, the placement slot 14 is divided into three independent areas, which respectively store the cleaning cloth 16, spray bottle 17 and cleaning brush 18, facilitating the cleaning and maintenance of the laser lens, casing, screen and other parts of the monitor 1. When in use, the magnetically fixed cover 20 is removed to open the placement slot 14. At this time, the insert 21 leaves the slot 19. The adsorption design of the insert 21 and the magnetic layer inside the slot 19 enables the quick opening and closing of the cover 20, ensuring efficient access to the corresponding tools during maintenance. The spray bottle 17 can spray cleaning agent to dissolve dust, the cleaning brush 18 can remove stubborn stains, and the cleaning cloth 16 is used to wipe away residual liquid and fine particles.

[0028] It should be noted that when the laser emitted by the laser monitoring instrument shines into the tunnel airflow containing dust particles, the dust particles cause the laser to scatter. The intensity and angle of the scattered light are related to the size, concentration, and other characteristics of the dust particles. The optical sensor in the monitoring instrument receives this scattered light and converts it into an electrical signal. By analyzing and processing the electrical signal, the number and size distribution of dust particles can be calculated, thereby determining the dust concentration.

[0029] As an example, tunnel construction sites typically accumulate large amounts of loose dust. If the monitoring instrument 1 directly contacts the ground, dust can enter through gaps or ventilation holes at the bottom of the instrument, potentially damaging delicate optical components (such as laser sensors) or affecting circuit stability over time. The protective assembly, by using the isolation block 13 to lift the monitoring instrument 1, creates a suspended structure at the bottom, maintaining a certain gap between the instrument and the ground. This design, on the one hand, prevents direct contact with ground dust, and on the other hand, utilizes airflow to prevent dust from rising vertically into the instrument (dust tends to settle due to gravity). Simultaneously, the isolation block 13 has a smaller support area, further reducing the contact surface with ground dust.

[0030] Furthermore, in tunnel construction environments, loose materials such as sand and gravel often accumulate on the ground. When the monitoring device needs to be moved, if the isolation block 13 remains extended, its protruding structure may collide with ground debris (such as sand piles or gravel) during dragging or transport. This not only increases the resistance to movement but may also cause deformation of the isolation block, damage to the connecting rod structure, and even affect the stability of the monitoring device. By retracting the isolation block 13 into the cavity 3, the overall downward protrusion of the monitoring device 1 can be significantly reduced, making its bottom as flat as conventional equipment. This avoids scraping against ground obstacles during movement, protecting the mechanical structure of the protective components and improving movement efficiency. After the monitoring device is positioned, the isolation block can be extended again to achieve lifting and isolation, balancing dust prevention and ease of movement.

[0031] Furthermore, integrating the cleaning components with the monitoring device offers the following advantages compared to a separate design:

[0032] 1) Ease of operation: Construction personnel can access the built-in cleaning tools at any time, avoiding maintenance delays caused by forgetting or losing the tools;

[0033] 2) Environmental adaptability: The enclosed placement slot 14 is sealed by the magnetic cover 20, which effectively prevents dust and moisture in the tunnel from contaminating the cleaning tools;

[0034] 3) Increased efficiency: The integrated structure eliminates the time spent carrying and searching for additional tool kits, making it especially suitable for rapid maintenance in narrow tunnel spaces;

[0035] 4) Equipment reliability: Regular cleaning can ensure the monitoring accuracy of the laser sensor and reduce data distortion or equipment failure caused by dust accumulation. The overall design reflects a balance between functional integration and engineering practicality.

[0036] Working Principle: Through the protective components, pulling the handle 6 upwards rotates the damping shaft 5, simultaneously lifting the monitor 1 and placing it at a suitable dust monitoring position in the tunnel, thus achieving portability. When the damping shaft 5 rotates, its first connecting rod 10 at both ends rotates, driving the second connecting rod 11 to rotate. The second connecting rod 11 then drives the support plate 9 to slide downwards along the slide groove 7 via the slider 8, thereby driving the isolation block 13 at the bottom of the support plate 9 to extend from the third slot 12, lifting the monitor 1 as a whole and isolating it from the ground to prevent dust intrusion. The damping characteristics of the damping shaft 5 fix the unfolding angle of the handle 6, maintaining the stable support state of the isolation block 13. When the handle 6 is rotated in the opposite direction, it retracts into the first slot 2, and the connecting rod structure drives the support plate 9 to retract, isolating... Block 13 retracts into cavity 3, resetting the device. The entire process is achieved through mechanical linkage, enabling rapid lifting and lowering of the monitor, effectively preventing dust from the ground from entering. Through the cleaning components, the placement slot 14 is divided into three independent areas, storing cleaning cloth 16, spray bottle 17, and cleaning brush 18 respectively, facilitating cleaning and maintenance of the monitor 1's laser lens, casing, screen, and other parts. In use, the magnetically fixed cover 20 is removed to open the placement slot 14. At this time, the insert 21 leaves the slot 19. The adsorption design of the insert 21 and the magnetic layer inside the slot 19 enables the quick opening and closing of the cover 20, ensuring efficient access to the corresponding tools during maintenance. The spray bottle 17 can spray cleaning agent to dissolve dust, the cleaning brush 18 can remove stubborn stains, and the cleaning cloth 16 is used to wipe away residual liquid and fine particles.

[0037] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. An intelligent laser monitoring instrument for dynamic monitoring of dust during tunnel construction, comprising: The monitoring instrument (1) is characterized in that: the monitoring instrument (1) is provided with a protective component, the protective component is used to isolate the bottom of the monitoring instrument (1) from the tunnel floor to prevent direct contact with the tunnel floor and dust from entering; the protective component includes a first slot (2) on the top of the monitoring instrument (1); cavities (3) are provided on both sides of the monitoring instrument (1); a second slot (4) is passed through the top of the cavity (3); a damping shaft (5) is rotatably connected inside the first slot (2); a handle (6) is fixed to the outside of the damping shaft (5); and the handle (6) is located inside the first slot (2); the two ends of the damping shaft (5) are located at... Inside the second slot (4), the inner wall of the cavity (3) is provided with a sliding groove (7), a slider (8) is slidably connected inside the sliding groove (7), a support plate (9) is fixed outside the slider (8), a first connecting rod (10) is fixed at both ends of the damping shaft (5), a second connecting rod (11) is rotatably connected to the top of the support plate (9), the bottom of the first connecting rod (10) is rotatably connected to the top of the second connecting rod (11), a third slot (12) is passed through the bottom of the cavity (3), an isolation block (13) is fixed to the bottom of the support plate (9), and the isolation block (13) passes through the third slot (12).

2. The intelligent laser monitoring instrument for dynamic monitoring of dust during tunnel construction according to claim 1, characterized in that, The back of the monitor (1) is provided with a placement slot (14), and a cleaning component is provided inside the placement slot (14). The cleaning component includes a pad (15) of the placement slot (14), and the pad (15) divides the interior of the placement slot (14) into three placement slots. Each placement slot contains a cleaning cloth (16), a spray bottle (17), and a cleaning brush (18).

3. The intelligent laser monitoring instrument for dynamic monitoring of dust during tunnel construction according to claim 2, characterized in that, The placement groove (14) is provided with slots (19) at the four corners, and the inner wall of the slots (19) is attached with a magnet layer.

4. The intelligent laser monitoring instrument for dynamic monitoring of dust during tunnel construction according to claim 3, characterized in that, The placement slot (14) is provided with a cover plate (20), and the back of the cover plate (20) is fixed with a plug (21) corresponding to the slot (19).

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