Gas concentration detection and control device

Abstract

The utility model discloses a gas concentration detection and control device, which belongs to the technical field of tunnel air detection and dust fall, and comprises a moving trolley, an adjusting mechanism, a fan and a gas concentration detector, the adjusting mechanism comprises a rotating component and a pitching component, the adjusting component is connected with the moving trolley, and the pitching component is connected with the fan. The pitching assembly is located above the rotating assembly, the draught fan is connected with the pitching assembly, the gas concentration detector is located at the front end of the moving trolley, a road recognition camera is arranged at the front end of the moving trolley, a control system is arranged in the moving trolley, and the control system is connected with the draught fan. The control system is electrically connected with the gas concentration detector, the road recognition camera and the adjusting mechanism. According to the tunnel air purification device, people can be prevented from entering a tunnel with high-concentration harmful gas, meanwhile, the high-concentration gas can be blown away through combination of the spraying assembly and the draught fan, dust can be reduced, and the purification effect of air in the tunnel is improved.

Description

Technical Field

[0001] This utility model belongs to the field of tunnel air detection and dust suppression technology, and in particular relates to a gas concentration detection and control device. Background Technology

[0002] For the excavation of long tunnels with small cross-sections, the small tunnel cross-section, narrow construction site, and long tunnel line cause harmful air to accumulate inside, making it difficult to disperse through natural ventilation.

[0003] At the same time, it is necessary to conduct gas concentration testing inside the tunnel to determine the concentration of harmful gases and ensure construction safety. The existing testing instruments are handheld by workers entering the tunnel for testing, but manual approach to the tunnel interior will result in close contact with harmful gases, which can easily cause safety hazards.

[0004] Therefore, there is an urgent need for a gas concentration detection and control device that can automatically detect the gas concentration inside the cave and, based on the detection results, ventilate and reduce dust inside the cave to decrease the concentration of harmful gases. Utility Model Content

[0005] The purpose of this invention is to provide a gas concentration detection and control device to solve the problems existing in the background art.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A gas concentration detection and control device includes a mobile trolley, an adjustment mechanism, a fan, and a gas concentration detector. The adjustment mechanism includes a rotation component and a pitch component, which are connected to the mobile trolley. The pitch component is located above the rotation component, and the fan is connected to the pitch component. The gas concentration detector is located at the front end of the mobile trolley, and a road recognition camera is provided at the front end of the mobile trolley. A control system is provided inside the mobile trolley, and the control system is electrically connected to the gas concentration detector, the road recognition camera, and the adjustment mechanism.

[0008] Furthermore, the mobile trolley includes a first cavity and a second cavity from top to bottom, a support plate is provided between the first cavity and the second cavity, the top of the first cavity is open, the control system and the drive system of the mobile trolley are located in the second cavity, and the adjustment mechanism is located in the first cavity.

[0009] Furthermore, the rotating assembly includes a gear disk and a gear motor assembly. The gear disk is rotatably connected to the support plate via a rotating shaft, and the gears of the gear motor assembly mesh with the gear disk.

[0010] Furthermore, the pitch assembly is located on the gear disk, and the pitch assembly includes a mounting plate, a support rod, a slide, a self-locking motor, a rack, and a spur gear. One end of the support rod is fixed to the gear disk, and the other end of the support rod is hinged to the mounting plate. One end of the slide is fixed to the gear disk, the back of the rack is slidably connected to the slide, and one end of the rack is hinged to the mounting plate. The self-locking motor is fixed to the gear disk through a mounting base, and the motor shaft of the self-locking motor is connected to the spur gear. The spur gear meshes with the rack.

[0011] Furthermore, the fan is fixed to the mounting plate, and the line connecting the rack and the support rod is horizontal to the axis of the fan.

[0012] Furthermore, a spray assembly is provided on the outside of the fan. The spray assembly includes a nozzle, a pipeline, and a water tank. The water tank is located inside the second cavity, and the nozzle is located outside the air outlet of the fan. The nozzle and the water tank are connected by a pipeline, and a water pump is provided on the pipeline.

[0013] Furthermore, the slide and the rack adopt a dovetail groove sliding structure.

[0014] Furthermore, the mobile vehicle is equipped with tracks.

[0015] The beneficial effects of this utility model are:

[0016] 1) Prevent personnel from entering tunnels with high concentrations of harmful gases to protect personal safety. At the same time, the gas concentration can be controlled by the ventilation system.

[0017] 2) The combination of spray components and fans can not only disperse high-concentration gases, but also reduce dust, thus improving the air purification effect inside the tunnel. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a gas concentration detection and control device according to the present invention;

[0019] Figure 2 This is a schematic diagram of the working process of a gas concentration detection and control device according to the present invention;

[0020] Figure 3 This is a top view of the pitch component in this utility model;

[0021] In the diagram, 1-moving trolley, 11-first cavity, 12-second cavity, 2-rotating assembly, 21-gear disk, 22-gear motor assembly, 3-pitch assembly, 31-mounting plate, 32-support rod, 33-rack, 34-slide, 35-self-locking motor, 36-spur gear, 4-fan, 51-nozzle, 52-pipeline, 6-gas concentration detector, 7-road recognition camera. Detailed Implementation

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

[0023] See Figures 1-3 This utility model provides a technical solution:

[0024] like Figures 1-3 As shown, a gas concentration detection and control device includes a mobile trolley 1, an adjustment mechanism, a fan 4, and a gas concentration detector 6. The adjustment mechanism includes a rotation component 2 and a pitch component 3. The adjustment mechanism is connected to the mobile trolley 1. The pitch component 3 is located above the rotation component 2. The fan 4 is connected to the pitch component 3. The gas concentration detector 6 is located at the front end of the mobile trolley 1. A road recognition camera 7 is provided at the front end of the mobile trolley 1. A control system is provided inside the mobile trolley 1. The control system is electrically connected to the gas concentration detector 6, the road recognition camera 7, and the adjustment mechanism.

[0025] Through the above technical solution, the mobile vehicle 1 identifies the road using the road recognition camera 7 and transmits the intersection information back to the control system. The control system then controls the movement of the mobile vehicle 1. When the mobile vehicle 1 enters the tunnel, the gas concentration detector 6 is activated to detect the concentration of harmful gases. The detected result is transmitted back to the control system. If the concentration exceeds the set value, and based on the location of the high gas concentration, the control system controls the adjustment mechanism to make corresponding adjustments. By using the rotation component 2 and the pitch component 3, the air outlet of the fan 4 is adjusted to the direction corresponding to the high gas concentration. Then, the fan 4 is activated to disperse the gas concentration by blowing air until the gas concentration reaches the standard. This solution can prevent personnel from entering tunnels with high concentrations of harmful gases, protecting personal safety, while also allowing for the control of gas concentration through the fan 4.

[0026] Furthermore, the mobile trolley 1 includes a first cavity 11 and a second cavity 12 from top to bottom. A support plate is provided between the first cavity 11 and the second cavity 12. The sealed second cavity 12 protects the control system and the drive system of the mobile trolley 1. The adjustment mechanism is located inside the first cavity 11. The adjustment mechanism is placed inside the first cavity 11, and the top of the first cavity 11 is open to prevent the fan 4 from interfering with the first cavity 11 when it pitches.

[0027] Furthermore, the rotating assembly 2 includes a gear disk 21 and a gear motor assembly 22. The gear disk 21 is rotatably connected to the support plate via a rotating shaft, and the gear of the gear motor assembly 22 meshes with the gear disk 21.

[0028] Through the above technical solution, the gear motor drives the gear disk 21 to rotate, thereby driving the adjustment mechanism on the gear disk 21 and the fan 4 to turn.

[0029] Furthermore, the pitch assembly 3 is located on the gear disk 21. The pitch assembly 3 includes a mounting plate 31, a support rod 32, a slide block 34, a self-locking motor 35, a rack 33, and a spur gear 36. One end of the support rod 32 is fixed to the gear disk 21, and the other end of the support rod 32 is hinged to the mounting plate 31. One end of the slide block 34 is fixed to the gear disk 21. The back of the rack 33 is slidably connected to the slide block 34, and one end of the rack 33 is hinged to the mounting plate 31. The self-locking motor 35 is fixed to the gear disk 21 by a mounting base. The motor shaft of the self-locking motor 35 is connected to the spur gear 36, and the spur gear 36 meshes with the rack 33.

[0030] With the above technical solution, the support rod 32 is located at the edge of the gear disk 21, the rack 33 is located near the center of the gear disk 21, and the fan 4 is fixed on the mounting plate 31. The mounting plate 31 is supported by the support rod 32 and the rack 33. Since one end of the rack 33 and the support rod 32 are respectively hinged to the mounting plate 31, the length of the support rod 32 remains unchanged, and the rack 33 can move up and down in the slide 34. Since the line connecting the rack 33 and the support rod 32 is horizontal to the axis of the fan 4, when the rack 33 moves down, it drives one side of the mounting plate 31 to drop, thereby adjusting the pitch angle of the fan 4 outlet on the mounting plate 31. Specifically, when the self-locking motor 35 drives the interference-fit spur gear 36 to rotate, the spur gear 36 drives the meshing rack 33 to move up and down. At this time, the rack 33 moves along the direction of the slide block 34. Since the slide block 34 and the rack 33 adopt a dovetail groove sliding structure, the rack 33 will not disengage from the slide block 34. When the rack 33 moves down, it causes the mounting plate 31 with one end hinged to tilt, thereby controlling the angle of the fan 4, so that the fan 4 can be aimed at the gas at the high place for blowing.

[0031] Furthermore, a spray assembly is provided on the outside of the fan 4. The spray assembly includes a nozzle 51, a pipe 52 and a water tank. The water tank is located inside the second cavity 12. The nozzle 51 is located outside the air outlet of the fan 4. The nozzle 51 and the water tank are connected by the pipe 52. A water pump is provided on the pipe 52.

[0032] Through the above technical solution, when the fan 4 is adjusted to a suitable angle according to the gas concentration detector 6, the nozzle 51 outside the fan 4 is also aligned with the corresponding high concentration direction. At this time, water is pumped from the water tank through the pipeline 52 to supply water to the nozzle 51, and the sprayed water mist can effectively suppress high concentrations of dust. The combination of the spray assembly and the fan 4 can not only disperse high concentrations of gas, but also suppress dust, thus improving the air purification effect inside the tunnel.

[0033] Furthermore, the mobile trolley 1 is equipped with tracks, which can effectively adapt to the uneven ground inside the tunnel and maintain stable movement.

[0034] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A gas concentration detecting and controlling device, characterized by comprising: The mobile trolley (1) comprises a mobile trolley (1), an adjusting mechanism, a fan (4) and a gas concentration detector (6), the adjusting mechanism comprises a rotating assembly (2) and a pitching assembly (3), the adjusting mechanism is connected with the mobile trolley (1), the pitching assembly (3) is located above the rotating assembly (2), the fan (4) is connected with the pitching assembly (3), the gas concentration detector (6) is located at the front end of the mobile trolley (1), the front end of the mobile trolley (1) is provided with a road recognition camera (7), the mobile trolley (1) is provided with a control system, and the control system is electrically connected with the gas concentration detector (6), the road recognition camera (7) and the adjusting mechanism respectively.

2. The gas concentration detecting and controlling apparatus according to claim 1, wherein: The mobile trolley (1) comprises a mobile trolley (1), an adjusting mechanism, a fan (4) and a gas concentration detector (6), the adjusting mechanism comprises a rotating assembly (2) and a pitching assembly (3), the adjusting mechanism is connected with the mobile trolley (1), the pitching assembly (3) is located above the rotating assembly (2), the fan (4) is connected with the pitching assembly (3), the gas concentration detector (6) is located at the front end of the mobile trolley (1), the front end of the mobile trolley (1) is provided with a road recognition camera (7), the mobile trolley (1) is provided with a control system, and the control system is electrically connected with the gas concentration detector (6), the road recognition camera (7) and the adjusting mechanism respectively.

3. The gas concentration detecting and controlling apparatus according to claim 2, wherein: The rotating assembly (2) comprises a gear disc (21) and a gear motor assembly (22), the gear disc (21) is rotatably connected with the support plate through a rotating shaft, and the gear of the gear motor assembly (22) is engaged with the gear disc (21).

4. The gas concentration detecting and controlling apparatus according to claim 3, wherein: The pitching assembly (3) is located on the gear disc (21), and the pitching assembly (3) comprises a mounting plate (31), a support rod (32), a sliding seat (34), a self-locking motor (35), a rack (33) and a spur gear (36), one end of the support rod (32) is fixed with the gear disc (21), the other end of the support rod (32) is hingedly connected with the mounting plate (31), one end of the sliding seat (34) is fixed on the gear disc (21), the back of the rack (33) is slidably connected with the sliding seat (34), one end of the rack (33) is hingedly connected with the mounting plate (31), the self-locking motor (35) is fixed on the gear disc (21) through a mounting seat, the motor shaft of the self-locking motor (35) is connected with the spur gear (36), and the spur gear (36) is engaged with the rack (33).

5. The gas concentration detecting and controlling apparatus according to claim 4, wherein: The fan (4) is fixed on the mounting plate (31), and the connecting line direction of the rack (33) and the support rod (32) is horizontal to the axis of the fan (4).

6. The gas concentration detecting and controlling apparatus according to claim 2, wherein: The outer side of the fan (4) is provided with a spraying assembly, the spraying assembly comprises a spray head (51), a pipeline (52) and a water tank, the water tank is located in the second cavity (12), the spray head (51) is located outside the air outlet of the fan (4), the spray head (51) and the water tank are connected through the pipeline (52), and the pipeline (52) is provided with a water pump.

7. The gas concentration detecting and controlling apparatus according to claim 4, wherein: The sliding seat (34) and the rack (33) adopt dovetail groove sliding structure.

8. The gas concentration detecting and controlling apparatus according to claim 1, wherein: The mobile trolley (1) is provided with a track.

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