Tunnel wind pressure monitoring sensor based on lora technology

Abstract

The application relates to the field of wind pressure monitoring, in particular to a tunnel wind pressure monitoring sensor based on Lora technology. The technical problem to be solved is that dust and fine particles are easily accumulated in the wind pressure monitoring sensor, which is inconvenient to clean, and water vapor combines with dust and particles to form lumps, which cannot be cleaned. The technical scheme is that the tunnel wind pressure monitoring sensor based on Lora technology comprises a shell and an inner shell; and a detachable inner shell is arranged on the upper side of the shell. The application realizes that dust adhered to the surface of the silica gel sheet or lumps formed by the mixing of dust and humid water vapor are shaken off to the upper surface of the collecting plate for temporary storage through high-speed vibration of the shaking block, the opening and closing of the collecting plate are controlled, dust and lump objects on the surface of the collecting plate are blown and cleaned through airflow, and the dust in the wind pressure monitoring sensor is cleaned.

Description

Technical Field

[0001] The present invention relates to the technical field of wind pressure monitoring, and in particular to a tunnel wind pressure monitoring sensor based on Lora technology. Background Art

[0002] During the tunnel construction process, the tunnel wind pressure monitoring sensor is mainly used to monitor the ventilation conditions in the tunnel. During the tunnel construction process, the dust content in the tunnel is relatively high. These dusts can easily follow the airflow into the wind pressure monitoring sensor, resulting in a large amount of dust and fine particles accumulating inside the wind pressure monitoring sensor, affecting its normal use. Most wind pressure monitoring sensors need to be manually disassembled and cleaned, which is difficult to clean and the cleaning effect is average.

[0003] Furthermore, due to the low temperature and high humidity in the tunnel, when a large amount of moisture enters the wind pressure monitoring sensor and condenses, it will mix with the dust and fine particles inside the wind pressure monitoring sensor, forming lumps inside the sensor, which are not easy to fall off naturally. Over time, this will affect the monitoring accuracy of the wind pressure monitoring sensor. Summary of the Invention

[0004] In order to overcome the shortcomings that a large amount of dust and fine particles are easily accumulated inside the wind pressure monitoring sensor, which is inconvenient to clean, and water vapor combines with dust and particles to form a large amount of lumps, which cannot be cleaned, the present invention provides a tunnel wind pressure monitoring sensor based on Lora technology.

[0005] Technical solution: A tunnel wind pressure monitoring sensor based on Lora technology, including a control module, a wiring slot, an outer shell and an inner shell; a detachable inner shell is provided on the upper side of the outer shell; the control module is connected to the upper side of the inner shell; a wiring slot for connecting wires is provided on the control module; it also includes a negative pressure air pipe, a positive pressure air pipe, a silicone sheet, an oscillation block, a collection plate and a wind gathering system; the lower part of the inner shell is an open structure; a silicone sheet is provided between the outer shell and the inner shell, and the outer shell and the inner shell are separated by the silicone sheet to form a positive pressure cavity between the inner shell and the silicone sheet and a negative pressure cavity between the outer shell and the silicone sheet; a negative pressure air pipe connecting the negative pressure cavity with the outside world is installed on the outer shell; a positive pressure air pipe connecting the positive pressure cavity with the outside world is provided on the inner shell; an oscillation block that can vibrate at high speed is provided on the silicone sheet; a collection plate that can be opened and the tilt angle can be adjusted by lifting and lowering is provided on the outer shell; a guide groove is provided on the front side of the upper surface of the collection plate.

[0006] Optionally, the silicone sheet is configured to be concave in the middle.

[0007] Optionally, when the collecting plate is opened downward, the housing and the collecting plate form an acute angle.

[0008] Optionally, a guide groove is provided on the front side of the upper surface of the collecting plate.

[0009] Optionally, the wind gathering system includes a second connecting block, a support rod, a soft rod, a second fixed block, a slider, a windshield, a fixed rod and a third fixed block; two front-to-back symmetrical second connecting blocks are rotatably connected to the first connecting rod; a support rod is provided between each of the two second connecting blocks and the adjacent first fixed blocks, and the support rod passes through the first fixed block; two fixed rods are fixedly connected to the outer shell; a slider is movably connected to each of the two fixed rods; a second fixed block is movably connected to each of the two first fixed blocks; a soft rod is installed on each of the two second fixed blocks, and both soft rods pass through adjacent sliders and are slidably connected to the sliders; two third fixed blocks are fixedly connected to the outer shell; an extendable and retractable windshield is provided between the first fixed block, the second fixed block, the slider and the third fixed block, and the windshield is a waterproof tarpaulin.

[0010] Optionally, the two windshields are extended downward to form an eight-shaped air inlet.

[0011] Optionally, the soft rod is made of elastic material to ensure that the windshield cloth will not get stuck when it is extended downward and opened.

[0012] Optionally, it also includes a second connecting rod and a windshield; the second connecting rod is movably connected to the rear side of the upper surface of the collecting plate; the upper side of the second connecting rod is movably connected to the windshield, and the lower surface of the windshield is an arched surface; the windshield is movably connected to the outer shell.

[0013] Optionally, the lower surface of the windshield is configured as an arched surface.

[0014] Optionally, the first fixing block and the first connecting block are made of elastic material.

[0015] The beneficial effects of the present invention are as follows: the present invention realizes that the dust adhering to the surface of the silicone sheet or the agglomerates formed by the mixture of dust and moist water vapor is removed and temporarily stored on the upper surface of the collection plate by the high-speed vibration of the oscillating block, and the dust and agglomerates on the surface of the collection plate are blown away and cleaned by the airflow through the control of the opening and closing of the collection plate, thereby achieving the cleaning of the dust inside the wind pressure monitoring sensor;

[0016] The two windshields are extended downward to form an eight-shaped air inlet, which then gathers and guides the airflow, increases the airflow velocity, and improves the cleaning effect of the dust on the surface of the collection plate;

[0017] The airflow passing through the surface of the collecting plate is guided by the wind shield to prevent the airflow from carrying dust back into the negative pressure chamber. At the same time, the wind shield vibrates after being affected by the wind, and the vibration is transmitted to the collecting plate through the second connecting rod, so that the collecting plate can follow the vibration synchronously, and then the lumps on the collecting plate are separated from the collecting plate during the vibration, making it easy to detach, thereby achieving a better cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1This is a schematic diagram of the three-dimensional structure of the tunnel wind pressure monitoring sensor based on Lora technology of the present invention;

[0019] Figure 2 is a cross-sectional view of the present invention;

[0020] Figure 3 This is a schematic diagram of the open three-dimensional structure of the present invention;

[0021] Figure 4 A partial cross-sectional view of an angle of the present invention;

[0022] Figure 5 A partial cross-sectional view from another angle of the present invention;

[0023] Figure 6 A schematic diagram of the three-dimensional structure of the wind gathering system of the present invention from one angle;

[0024] Figure 7 This is a schematic diagram of the three-dimensional structure of the wind gathering system of the present invention from another angle;

[0025] Figure 8 This is a schematic diagram of the three-dimensional structure of the second connecting rod and the windshield plate of the present invention when they are folded up;

[0026] Figure 9 This is a schematic diagram of the three-dimensional structure of the second connecting rod and the wind shield of the present invention.

[0027] Markings in the accompanying drawings: 1-control module, 2-wiring slot, 3-negative pressure air pipe, 4-positive pressure air pipe, 5-outer shell, 6-inner shell, 7-silicone sheet, 8-oscillation block, 9-collection plate, 901-guide groove, 101-first driving member, 102-first fixed block, 103-first connecting block, 104-first connecting rod, 105-second driving member, 106-rotating fixed block, 301-second connecting block, 302-support rod, 303-soft rod, 304-second fixed block, 305-slider, 306-windshield cloth, 307-fixed rod, 308-third fixed block, 701-second connecting rod, 702-windshield. DETAILED DESCRIPTION

[0028] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

[0029] Example 1

[0030] like Figure 3-Figure 5 As shown, a tunnel wind pressure monitoring sensor based on Lora technology includes a control module 1, a wiring slot 2, an outer shell 5 and an inner shell 6; the inner shell 6 is provided on the upper side of the outer shell 5; the control module 1 is connected to the upper side of the inner shell 6; the control module 1 is provided with a wiring slot 2;

[0031] It also includes a negative pressure air pipe 3, a positive pressure air pipe 4, a silicone sheet 7, an oscillation block 8, a collecting plate 9, a driving component and an air gathering system; the lower part of the inner shell 6 is an open structure; a silicone sheet 7 is provided between the outer shell 5 and the inner shell 6, and the outer shell 5 and the inner shell 6 are separated by the silicone sheet 7 to form a positive pressure cavity between the inner shell 6 and the silicone sheet 7 and a negative pressure cavity between the outer shell 5 and the silicone sheet 7; a negative pressure air pipe 3 is installed on the front side of the outer shell 5; a positive pressure air pipe 4 is provided on the front side of the inner shell 6; an oscillation block 8 is provided at the center of the lower surface of the silicone sheet 7, and the high-speed vibration of the oscillation block 8 causes the lower surface of the silicone sheet 7 to adhere to the Dust or dirt will fall off; a driving assembly is installed on the shell 5; a collecting plate 9 is connected to the driving assembly; a guide groove 901 is provided on the front side of the upper surface of the collecting plate 9; when the collecting plate 9 is opened downward, the shell 5 and the collecting plate 9 form an acute angle, so that the wind will carry away the dust accumulated on the surface of the collecting plate 9, preventing excessive dust accumulation, resulting in a smaller space in the negative pressure chamber, shortening the monitoring stroke, and affecting the life of the wind pressure monitoring sensor; the liquid water condensed on the collecting plate 9 is automatically discharged through the guide groove 901, and when the collecting plate 9 is closed upward, the collecting plate 9 and the shell 5 fit together to form a closed space negative pressure chamber.

[0032] The silicone sheet 7 is arranged to be concave in the middle, which effectively improves the effect of shaking off the dust.

[0033] When the collecting plate 9 is opened downward, the housing 5 and the collecting plate 9 form an acute angle, allowing wind to enter the negative pressure chamber and take away the dust accumulated in the chamber.

[0034] A guide groove 901 is provided on the front side of the upper surface of the collecting plate 9 to facilitate the automatic discharge of liquid water condensed on the collecting plate 9 from the guide groove 901 .

[0035] The driving assembly includes a first driving member 101, a first fixed block 102, a first connecting block 103, a first connecting rod 104, a second driving member 105 and a rotating fixed block 106; a first driving member 101 is installed on each of the front and rear sides of the housing 5; the first driving member 101 is an electric push rod; the output ends of the two first driving members 101 are each rotatably connected to a rotating fixed block 106; the two rotating fixed blocks 106 are each connected to a first fixed block 102; the two first fixed blocks 102 are respectively fixed to the front and rear sides of the lower surface of the collecting plate 9; the second driving member 105 is installed on the left side of the housing 5; the second driving member 105 is an electric push rod; the output end of the second driving member 105 is fixedly connected to the first connecting rod 104; a first connecting block 103 is provided between the first connecting rod 104 and the left side of the lower surface of the collecting plate 9, and the first connecting block 103 is rotatably connected to the first connecting rod 104; the collecting plate 9 is driven downward by the first driving member 101 and the second driving member 105, and the descending height of the telescopic end of the first driving member 101 is greater than the descending height of the telescopic end of the second driving member 105, so that the shell 5 and the collecting plate 9 form an acute angle, which is convenient for the oncoming wind to better contact the collecting plate 9, thereby realizing the cleaning of the dust accumulated on the surface of the collecting plate 9.

[0036] The dust removal process is described in detail below:

[0037] When dust removal is required, the control module 1 controls the oscillating block 8 to vibrate at high speed, and the vibration is transmitted to the silicone sheet 7, so that the dust attached to the surface of the silicone sheet 7 or the lumps formed by the mixture of dust and moist water vapor are preliminarily removed and temporarily stored on the upper surface of the collecting plate 9. Then the oscillating block 8 stops working, and then the collecting plate 9 is driven downward by the first driving member 101 and the second driving member 105, and the descending height of the telescopic end of the first driving member 101 is greater than the descending height of the telescopic end of the second driving member 105, so that the shell 5 and the collecting plate 9 form an acute angle, that is, Figure 5 The state shown facilitates the airflow to blow away and clean the dust and agglomerated objects on the surface of the collecting plate 9, thereby cleaning the dust inside the wind pressure monitoring sensor.

[0038] The following is a detailed description of the data monitoring and transmission of the wind pressure monitoring sensor:

[0039] When the wind pressure monitoring sensor is installed in the tunnel, after the wind pressure monitoring sensor collects the detection data, it is centrally processed by the control module 1, and a Wi-Fi antenna is connected to the wiring slot 2 to realize long-distance radio transmission of the collected data. The advantages of Lora technology such as low power consumption, long transmission distance, and no need to build base stations can quickly establish a large-scale wind pressure detection network. At the same time, in the face of the problem of complex branches in the tunnel and rock walls in the tunnel blocking communication, the wiring slot 2 of the present invention uses an external extended Wi-Fi antenna to realize long-distance deployment of branches in the tunnel, deploying the antenna in an open area, reducing the use of relay equipment, realizing the remote deployment of the wind pressure monitoring sensor and the antenna, and reducing data loss caused by complex conditions inside the tunnel. Compared with the traditional Wi-Fi antenna's RF coaxial cable directly connected to the wiring slot 2, the wiring slot 2 can also use an RJ-45 connector for extended deployment and then transfer to the Wi-Fi antenna, which can additionally realize POE power supply and reduce the number of sensor wiring. At the same time, the use of the RJ-45 connector can expand the dual-path parallel of wireless networking and wired networking, ensuring stable data transmission.

[0040] Example 2

[0041] On the basis of Example 1, Figure 6 and Figure 7 As shown,

[0042] The wind gathering system includes a second connecting block 301, a support rod 302, a soft rod 303, a second fixed block 304, a slider 305, a wind shield 306, a fixed rod 307 and a third fixed block 308; two second connecting blocks 301 symmetrically connected to the first connecting rod 104 are rotatably connected; a support rod 302 is provided between each of the two second connecting blocks 301 and the adjacent first fixed block 102, and the support rod 302 passes through the first fixed block 102; two fixed rods 307 are fixed to the outer shell 5; a slider 305 is movably connected to each of the two fixed rods 307; a second fixed block 304 is movably connected to each of the two first fixed blocks 102; a soft rod 303 is installed on each of the two second fixed blocks 304, and the two The soft rods 303 all pass through the adjacent sliders 305 and are slidably connected to the sliders 305; two third fixed blocks 308 are fixed to the outer shell 5; a windshield cloth 306 is arranged between the first fixed block 102, the second fixed block 304, the slider 305 and the third fixed block 308. The windshield cloth 306 is a waterproof tarpaulin with strong flexibility, is impermeable to wind and water, and avoids contamination; by extending and opening the windshield cloth 306, the airflow is guided and the dust removal effect on the surface of the collection plate 9 is improved; when the collection plate 9 needs to be opened downward, the soft rod 303 slides to the state shown in the figure. At this time, the two windshield cloths 306 are extended and opened downward to form an eight-shaped air inlet, thereby gathering and guiding the airflow, increasing the airflow velocity, and improving the dust cleaning effect on the surface of the collection plate 9.

[0043] The two windshields 306 are extended downward to form an eight-shaped air inlet, thereby concentrating and guiding the airflow, increasing the airflow velocity, and improving the cleaning effect of the dust on the surface of the collection plate 9.

[0044] The soft rod 303 is made of elastic material to ensure that the windshield cloth 306 will not get stuck when it is extended and opened downward.

[0045] The following is a detailed description of the working process of the wind gathering system:

[0046] Based on the fact that the opening state of the wind gathering system is consistent with the opening state of the dust removal work, when the collecting plate 9 is opened downward, the first connecting rod 104 synchronously drives the second connecting block 301 to move downward, and the first fixed block 102 drives the support rod 302 to move downward, so that the windshield cloth 306 gradually unfolds, that is, moves to the state shown in the figure. At this time, the two windshield cloths 306 extend and open downward to form an eight-shaped air inlet, thereby gathering and guiding the airflow, increasing the airflow velocity, and improving the cleaning effect of the dust on the surface of the collecting plate 9.

[0047] Example 3

[0048] On the basis of Example 1 or 2, as Figure 1-Figure 3 、 Figure 8 and Figure 9 As shown,

[0049] It also includes a second connecting rod 701 and a wind shield 702; the second connecting rod 701 is hinged on the rear side of the upper surface of the collecting plate 9; the wind shield 702 is hinged on the upper side of the second connecting rod 701, and the lower surface of the wind shield 702 is an arched arc surface, which guides the airflow passing through the surface of the collecting plate 9 to prevent the airflow from carrying dust back into the negative pressure chamber, resulting in a decrease in the dust removal effect; the wind shield 702 is movably connected to the outer shell 5; when the collecting plate 9 is opened downward, the collecting plate 9 drives the wind shield 702 to flip downward at an angle through the second connecting rod 701 to prevent the oncoming wind from blowing into the negative pressure chamber through the collecting plate 9; when the collecting plate 9 is closed downward, the collecting plate 9 pushes the second connecting rod 701 to return the wind shield 702 to its original angle without affecting the normal operation of the equipment.

[0050] The lower surface of the windshield 702 is configured as an arched surface, which guides the airflow passing over the surface of the collection plate 9, preventing the airflow from carrying dust back into the negative pressure chamber and reducing the dust removal effect. The first fixing block 102 and the first connecting block 103 are made of elastic material. When the windshield 702 is affected by the wind, it vibrates, which is transmitted to the collection plate 9 through the second connecting rod 701, allowing the collection plate 9 to follow the vibration synchronously, thereby separating the lumps on the collection plate 9 from the collection plate 9 during the vibration, making it easier for the airflow to carry them away.

[0051] The working process of the windshield 702 is described in detail below:

[0052] Based on the open state of the dust removal operation, when the equipment needs to perform dust removal, the collecting plate 9 descends and pulls the second connecting rod 701 to drive the wind shield 702 to flip downward by a certain angle, so that the wind shield 702 moves to the state shown in the figure. Since the lower surface of the wind shield 702 is set to an arched arc surface, the airflow passing through the surface of the collecting plate 9 is guided by the arched arc surface to prevent the airflow from carrying dust back into the negative pressure chamber, resulting in a reduction in the dust removal effect. At the same time, in order to further clean the solidified lumps on the collecting plate 9, the wind shield 702 vibrates after being affected by the wind, and is transmitted to the collecting plate 9 through the second connecting rod 701, so that the collecting plate 9 can follow the shaking synchronously, and then the lumps on the collecting plate 9 are separated from the collecting plate 9 during the shaking, so that they are easily detached, thereby achieving a better cleaning effect.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A tunnel wind pressure monitoring sensor based on Lora technology, comprising a control module (1), a wiring slot (2), an outer shell (5) and an inner shell (6); a detachable inner shell (6) is provided on the upper side of the outer shell (5); the upper side of the inner shell (6) is connected to the control module (1); a wiring slot (2) for connecting electric wires is provided on the control module (1); and the sensor is characterized in that: The invention also includes a negative pressure air pipe (3), a positive pressure air pipe (4), a silicone sheet (7), an oscillating block (8), a collecting plate (9) and an air gathering system; the lower part of the inner shell (6) is an open structure; a silicone sheet (7) is provided between the outer shell (5) and the inner shell (6); the outer shell (5) and the inner shell (6) are separated by the silicone sheet (7), forming a positive pressure cavity between the inner shell (6) and the silicone sheet (7) and a negative pressure cavity between the outer shell (5) and the silicone sheet (7); a negative pressure air pipe (3) is installed on the outer shell (5) to connect the negative pressure cavity with the outside; the inner shell (6) is provided with a positive pressure air pipe (4) connecting the positive pressure chamber with the outside world; a high-speed vibrating oscillating block (8) is provided on the silicone sheet (7); a collecting plate (9) which can be opened and can be raised and lowered to adjust the tilt angle is provided on the outer shell (5); a guide groove (901) is provided on the front side of the upper surface of the collecting plate (9); the wind gathering system includes a second connecting block (301), a support rod (302), a soft rod (303), a second fixed block (304), a slider (305), a wind shield (306), a fixed rod (307) and a third The first connecting rod (104) is rotatably connected to two front-to-back symmetrical second connecting blocks (301); a support rod (302) is provided between each of the two second connecting blocks (301) and the adjacent first fixing block (102), and the support rod (302) passes through the first fixing block (102); the housing (5) is fixed with two fixing rods (307); each of the two fixing rods (307) is movably connected to a slider (305); each of the two first fixing blocks (102) is movably connected to There is a second fixed block (304); a soft rod (303) is installed on each of the two second fixed blocks (304), and the two soft rods (303) pass through adjacent sliders (305) and are slidably connected to the sliders (305); two third fixed blocks (308) are fixed to the housing (5); an extendable and retractable windshield cloth (306) is provided between the first fixed block (102), the second fixed block (304), the slider (305) and the third fixed block (308), and the windshield cloth (306) is a waterproof tarpaulin.

2. The tunnel wind pressure monitoring sensor based on Lora technology according to claim 1 is characterized in that: The silica gel sheet (7) is arranged to have a concave shape in the middle.

3. The tunnel wind pressure monitoring sensor based on Lora technology according to claim 1 is characterized in that: When the collecting plate (9) is opened downward, the housing (5) and the collecting plate (9) form an acute angle.

4. The tunnel wind pressure monitoring sensor based on Lora technology according to claim 1 is characterized in that: The two windshields (306) are extended downwards and opened to form an eight-shaped air inlet.

5. The tunnel wind pressure monitoring sensor based on Lora technology according to claim 1 is characterized in that: The soft rod (303) is made of elastic material.

6. The tunnel wind pressure monitoring sensor based on Lora technology according to claim 5 is characterized in that: It also includes a second connecting rod (701) and a windshield (702); the second connecting rod (701) is movably connected to the rear side of the upper surface of the collecting plate (9); the windshield (702) is movably connected to the upper side of the second connecting rod (701), and the lower surface of the windshield (702) is an arched curved surface; the windshield (702) is movably connected to the outer shell (5).

7. The tunnel wind pressure monitoring sensor based on Lora technology according to claim 6 is characterized in that: The lower surface of the windshield (702) is configured as an arched surface.

8. The tunnel wind pressure monitoring sensor based on Lora technology according to claim 7 is characterized in that: The first fixing block (102) and the first connecting block (103) are made of elastic material.

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