A safety monitoring device for rail transit construction

Abstract

The present invention belongs to the field of safety monitoring, and specifically is a safety monitoring device for rail transit construction, comprising a camera; a fixing box is fixedly connected to the side wall of the camera; a fan rack is slidably connected to the inner side wall of the fixing box; a motor is fixedly connected to the inner side wall of the fan rack; air outside the fixing box is extracted by rotating the arranged blowing fan blades, and the air enters the interior of the fixing box and is blown in front of the lens of the camera to prevent dust and impurities from floating onto the lens of the camera, and the dust and impurities are blown to the side wall of the suspension mesh plate to be filtered, and the suspension mesh plate swings with the wind and repeatedly hits and vibrates to shake off the dust on the side wall of the suspension mesh plate, and dust adhering to the suspension mesh plate is prevented from affecting the ventilation effect, and the wind blown into the ventilation slot dissipates heat to the rear of the camera and the side wall of the motor, and avoids the camera from heating up due to long-term operation and affecting the monitoring effect.

Description

Technical Field

[0001] The invention belongs to the field of safety monitoring, in particular to a safety monitoring device for rail transit construction. Background Art

[0002] Rail transit is a means of transportation in which the subway runs on specific tracks. When constructing rail transit in a tunnel, it is necessary to use safety monitoring devices to record and observe the tunnel in real time to avoid accidents during construction.

[0003] A Chinese patent with publication number CN114194252A discloses a track monitoring device for urban rail transit, including a light rail train and a light rail cable. A signal transmitter is fixedly installed on the top of the light rail train, a mobile component is arranged on the surface of the light rail cable, and a monitoring component is arranged on the bottom of the mobile component. The track monitoring device for urban rail transit is connected to a signal receiver through a signal transmitter. Once there is an obstacle on the track, the light rail train can know it in advance 100 meters away, which can effectively reduce collision accidents.

[0004] During rail transit construction, construction in the tunnel will generate flying dust. The dust floats and adheres to the camera lens, affecting the normal monitoring work of the camera. In serious cases, the camera lens is blocked, making it difficult for the camera to monitor the construction site in real time, and the record is incomplete when an emergency occurs.

[0005] To this end, the present invention provides a safety monitoring device for rail transit construction. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: a safety monitoring device for rail transit construction described in the present invention comprises a camera; a fixing box is fixedly connected to the side wall of the camera; a fan frame is slidably connected to the inner wall of the fixing box; a motor is fixedly connected to the inner wall of the fan frame; a blowing fan blade is fixedly connected to the output end of the motor; a filter is fixedly connected to the inner wall of the fixing box; a ventilation slot is opened inside the fixing box; an air bag is fixedly connected to the inner wall of the fixing box; a matching slider is slidably connected to the inner wall of the fixing box; the inner side of the fixing box The wall is rotatably connected to a rotating shaft, and the rotating shaft is fixedly connected to a torsion spring; the side wall of the rotating shaft is fixedly connected to a baffle; the side wall of the matching slider is fixedly connected to a pulling rope, and the other end of the pulling rope is fixedly connected to the side wall of the baffle; dust is prevented from floating onto the lens of the camera, thereby affecting the normal shooting of the camera, and the ventilation groove is annular and passes to the motor, and the air has a heat dissipation effect on the motor. At the same time, the filter net is used to filter the air extracted by the blowing fan blades to reduce the entry of dust and impurities. When the blowing fan blades stop rotating, the rotating shaft torsion spring cooperates with the pulling rope to drive the baffle to reset and open the shooting port.

[0008] Preferably, the inner wall of the fixed box is fixed with a fixed shaft; the side wall of the fixed shaft is rotatably connected with a suspension mesh plate; the inner wall of the fixed box is fixed with an elastic plate; the end of the elastic plate is fixed with a magnetic part No. 1; the side wall of the No. 1 magnetic part is fixed with a ribbon; the side wall of the suspension mesh plate is fixed with a No. 2 magnetic part; the No. 1 magnetic part and the No. 2 magnetic part act magnetically; the No. 2 magnetic part magnetically repels the No. 1 magnetic part, so that the elastic plate bends, and cooperates with the wind to blow the ribbon, and the No. 1 magnetic part moves away from the No. 2 magnetic part. When the wind becomes smaller, the elastic plate resets and drives the No. 1 magnetic part to repel the No. 2 magnetic part, and the No. 2 magnetic part hits the inner wall of the fixed box, so that the dust on the side wall of the suspension mesh plate vibrates and falls off, further blowing air to dissipate the heat of the motor and preventing dust from adhering to the side wall of the motor.

[0009] Preferably, a fixing block is fixedly connected to the inner side wall of the fixing box; an elastic member is fixedly connected to the inner side wall of the fixing block; a pushing soft plate is fixedly connected to the side wall of the elastic member; the pushing soft plate is in a "W" shape; and it scrapes the side wall of the suspension mesh panel to scrape off the dust at the corresponding middle position of the suspension mesh panel, thereby enhancing the dust removal effect on the suspension mesh panel. At the same time, the elastic member contracts and rebounds under the force, and repeatedly cooperates with the magnet to vibrate the suspension mesh panel to prevent dust from adhering to the side wall of the suspension mesh panel.

[0010] Preferably, the side walls of the suspension mesh panel are fixed with multiple groups of curved soft plates; the bottom end of the curved soft plate is fixed with an impact ball; the impact ball fixed with the bottom end of the curved soft plate is vibrated and impacted on the side walls of the suspension mesh panel, which has a repeated shaking effect, thereby enhancing the effect of cleaning dust on the side walls of the suspension mesh panel.

[0011] Preferably, the inner wall of the fixed box is slidably connected to a dust box; a through hole is opened at the end of the dust box and is located at the bottom end of the suspension mesh plate; a dust detector is fixedly connected to the inner wall of the dust box; to prevent dust from being blocked inside the fixed box, thereby affecting the ventilation effect of the suspension mesh plate, when there is a lot of dust accumulated inside the dust box, and the dust detector senses that the dust is too much and it is not suitable for construction workers to work, an alarm is sent to the monitoring room to notify the construction workers to leave the construction site to remove dust.

[0012] Preferably, a water tank is provided inside the fixed box; a water pump is fixedly connected inside the fixed box; a water pipe is fixedly connected to the end of the water pump; an atomizing nozzle is fixedly connected to the bottom end of the water pipe; a sealing plug is threadedly connected to the inner wall of the fixed box; a sheet metal cover is fixedly connected to the side wall of the camera; a heat conducting plate is fixedly connected to the inner wall of the sheet metal cover; an air vent is fixedly connected to the inner wall of the sheet metal cover; the fan blades are used to blow air into the ventilation slot to drive the sprayed water mist to blow toward the rear position of the camera, the water mist covers the side walls of the sheet metal cover to cool down the side walls of the sheet metal cover, the heat conducting plate absorbs the coolness to dissipate the heat to the rear of the camera, and the heat energy generated at the rear of the camera is transmitted to the outside of the fixed box through the air vent, so as to avoid the camera from heating up due to long-term operation and failing to record completely in case of emergency.

[0013] Preferably, the inner wall of the fixed box is fixed with multiple groups of elastic hanging ropes; the side walls of the elastic hanging ropes are fixed with rubber balls; the side walls of the rubber balls are fixed with breathing paper; the inner wall of the fixed box is fixed with multiple groups of arc-shaped spring sheets, and the arc-shaped spring sheets are located on the sides of the rubber balls; at the same time, the four groups of elastic hanging ropes are swung under the influence of wind, driving the four groups of rubber balls to collide with each other and with the arc-shaped spring sheets, so that the side walls of the breathing paper vibrate, shaking off the residual moisture on the breathing paper, to prevent the moisture from clogging the breathing paper.

[0014] Preferably, the side wall of the rubber ball is fixedly connected to a connecting rubber column; the bottom end of the connecting rubber column is fixedly connected to a connecting rope, and the connecting rope is located on the side of the breathing paper; the side wall of the connecting rope is fixedly connected to multiple groups of spring plates; the side wall of the connecting rope is sleeved with multiple groups of weight-bearing balls; the multiple groups of spring plates are driven to collide with the side walls of the two groups of breathing papers, so that the moisture on the side walls of the breathing paper is shaken off, avoiding adhesion to the side walls of the breathing paper and affecting the air circulation.

[0015] Preferably, an arc-shaped groove is provided inside the fixed box; a return pipe is fixedly connected to the inner wall of the fixed box, and the return pipe is connected to the water storage tank; when too much water accumulates in the arc-shaped groove, the one-way valve inside the return pipe is opened, and the water flows into the water storage tank inside the fixed box through the return pipe, thereby recycling the water.

[0016] Preferably, a recovery filter is fixedly connected to the interior of the fixed box; the recovery filter is located at the arc-shaped groove; and water is filtered through the recovery filter to prevent impurities from entering the water storage tank and affecting the normal operation of the water pump.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. A safety monitoring device for rail transit construction described in the present invention draws air from the outside of a fixed box by rotating the provided blower fan blades. The air enters the interior of the fixed box and is blown in front of the lens of a camera to prevent dust and impurities from floating onto the lens of the camera. The dust and impurities are blown to the side walls of the suspension mesh plate and filtered. The suspension mesh plate swings with the wind and repeatedly hits and vibrates to shake off the dust on the side walls of the suspension mesh plate, thereby preventing dust from adhering to the suspension mesh plate and affecting the ventilation effect. The wind blown into the ventilation slot dissipates heat to the rear of the camera and the side walls of the motor, thereby preventing the camera from overheating due to long-term operation and affecting the monitoring effect.

[0019] 2. The safety monitoring device for rail transit construction described in the present invention extracts water from the water storage tank of the fixed box through the water pump, and sprays it out from the atomizing nozzle in the form of atomizer. The wind blows into the ventilation slot with the help of the fan blades, and blows the water mist to the rear heating position of the camera. The wind in the ventilation slot is cooled by the water mist, thereby enhancing the heat dissipation effect on the rear of the camera. The wind mixed with the water mist is blown onto the breathing paper, and the water is filtered on the breathing paper to avoid the water adhering to the camera and causing damage to the camera. At the same time, as the spring plate and the weight-bearing ball on the connecting rope continuously swing and hit the side wall of the breathing paper, the water on the side wall of the breathing paper is shaken off and flows back into the water storage tank, thereby playing a role of recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 It is a three-dimensional diagram of the fixing box in the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the suspended mesh panel in the present invention;

[0023] Figure 3 is a cross-sectional view of a fixing box in the present invention;

[0024] Figure 4 yes Figure 3 A magnified image of point A;

[0025] Figure 5 yes Figure 3 The enlarged view of point B;

[0026] Figure 6 It is a schematic diagram of the local structure of the fixing box in the present invention.

[0027] In the figure: 1. Camera; 11. Fixing box; 12. Fan rack; 13. Motor; 14. Blowing fan blades; 15. Filter; 16. Airbag; 17. Matching slider; 18. Rotating shaft; 19. Baffle; 191. Pull rope; 2. Fixing shaft; 21. Suspension mesh plate; 22. Elastic plate; 23. No. 1 magnetic piece; 24. No. 2 magnetic piece; 3. Fixing block; 31. Elastic piece; 32. Push soft plate; 4. Bending Soft board; 41. Impact ball; 5. Dust box; 51. Dust detector; 6. Water pump; 61. Water pipe; 62. Atomizing nozzle; 63. Sealing plug; 64. Iron cover; 65. Heat conductive sheet; 66. Air vent; 7. Elastic hanging rope; 71. Rubber ball; 72. Breathing paper; 73. Arc-shaped spring piece; 8. Connecting rubber column; 81. Connecting rope; 82. Spring plate; 83. Weighted ball; 9. Reflux pipe; 91. Recovery filter. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0029] Embodiment 1

[0030] like Figures 1 to 3As shown, a safety monitoring device for rail transit construction described in an embodiment of the present invention includes a camera 1; a fixing box 11 is fixedly connected to the side wall of the camera 1; a fan frame 12 is slidably connected to the inner wall of the fixing box 11; a motor 13 is fixedly connected to the inner wall of the fan frame 12; a fan blade 14 is fixedly connected to the output end of the motor 13; a filter 15 is fixedly connected to the inner wall of the fixing box 11; a ventilation slot is opened inside the fixing box 11; an air bag 16 is fixedly connected to the inner wall of the fixing box 11; a matching slider 17 is slidably connected to the inner wall of the fixing box 11; a rotating shaft 18 is rotatably connected to the inner wall of the fixing box 11, and the rotating shaft 18 is fixedly connected to a torsion spring; a baffle 19 is fixedly connected to the side wall of the rotating shaft 18; a pull rope 191 is fixedly connected to the side wall of the matching slider 17; when the rail transit construction in the tunnel is carried out, the camera 1 is installed in the tunnel to monitor the construction environment, and the side wall of the camera 1 is fixedly connected to the fixing box 11 is used to prevent dust from the entire camera 1. When there is a lot of floating dust at the lens of the camera 1, the output end of the motor 13 rotates to drive the fan blades 14 to extract external air. The fan frame 12 slides and squeezes the airbag 16. The gas inside the airbag 16 squeezes and slides with the slider 17. The slider 17 pushes the extrusion baffle 19 to rotate around the rotating shaft 18. The two groups of baffles 19 block a portion of the shooting port in front of the lens, leaving a straight shooting hole. The air is blown at the lens of the camera 1, and the dust is blown into the ventilation slot to prevent the dust from floating on the lens of the camera 1, thereby affecting the normal shooting of the camera 1. The ventilation slot is annular and passes to the motor 13. The air has a heat dissipation effect on the motor 13. At the same time, the filter 15 is used to filter the air extracted by the fan blades 14 to reduce the entry of dust and impurities. When the fan blades 14 stop rotating, the torsion spring of the rotating shaft 18 cooperates with the pull rope 191 to drive the baffle 19 to reset and open the shooting port.

[0031] The inner side wall of the fixed box 11 is fixedly connected with a fixed shaft 2; the side wall of the fixed shaft 2 is rotatably connected with a suspension mesh plate 21; the inner side wall of the fixed box 11 is fixedly connected with an elastic plate 22; the end of the elastic plate 22 is fixedly connected with a No. 1 magnetic piece 23; the side wall of the No. 1 magnetic piece 23 is fixedly connected with a streamer; the side wall of the suspension mesh plate 21 is fixedly connected with a No. 2 magnetic piece 24; the No. 1 magnetic piece 23 and the No. 2 magnetic piece 24 have a magnetic effect; the fan blades 14 draw air to blow the dust floating towards the camera 1 into the ventilation slot, and the dust blown on the side wall of the suspension mesh plate 21 is filtered by the suspension mesh plate 21 to prevent dust from entering the ventilation slot. Inside, the wind force is used to blow the suspension mesh plate 21 to rotate on the side wall of the fixed shaft 2. The swing of the suspension mesh plate 21 drives the No. 2 magnetic part 24 to swing. The No. 2 magnetic part 24 magnetically repels the No. 1 magnetic part 23, causing the elastic plate 22 to bend, and cooperate with the wind force to blow the streamer, so that the No. 1 magnetic part 23 is away from the No. 2 magnetic part 24. When the wind force becomes smaller, the elastic plate 22 is reset to drive the No. 1 magnetic part 23 to repel the No. 2 magnetic part 24. The No. 2 magnetic part 24 hits the inner wall of the fixed box 11, causing the dust on the side wall of the suspension mesh plate 21 to vibrate and fall off, further blowing air to dissipate heat for the motor 13 to prevent dust from adhering to the side wall of the motor 13.

[0032] The inner side wall of the fixing box 11 is fixedly connected to a fixing block 3; the inner side wall of the fixing block 3 is fixedly connected to an elastic member 31; the side wall of the elastic member 31 is fixedly connected to a pushing soft plate 32; the pushing soft plate 32 is in a "W" shape; the suspension mesh panel 21 is swung by the wind, and the No. 1 magnetic member 23 on the elastic plate 22 repels the No. 2 magnetic member 24, causing the suspension mesh panel 21 to bounce off and hit the side wall of the pushing soft plate 32, and the two side bent plates of the pushing soft plate 32 are bent and scraped on the side wall of the suspension mesh panel 21, so that the dust at the corresponding middle position of the suspension mesh panel 21 is scraped off, thereby enhancing the dust removal effect on the suspension mesh panel 21, and at the same time, the elastic member 31 is forced to shrink and rebound, and repeatedly cooperates with the magnet to vibrate the suspension mesh panel 21 to prevent dust from adhering to the side wall of the suspension mesh panel 21.

[0033] The side walls of the suspension mesh panel 21 are fixedly connected with multiple groups of curved soft plates 4; the bottom end of the curved soft plates 4 is fixedly connected with an impact ball 41; the elastic member 31 cooperates with the magnet to make the suspension mesh panel 21 swing and vibrate, and at the same time drive the curved soft plates 4 to bend; the impact ball 41 fixed at the bottom end of the curved soft plates 4 is vibrated and impacts the side walls of the suspension mesh panel 21, which has the effect of repeated shaking, thereby enhancing the effect of cleaning the dust on the side walls of the suspension mesh panel 21.

[0034] The inner wall of the fixed box 11 is slidably connected with a dust box 5; a through hole is opened at the end of the dust box 5 and is located at the bottom of the suspension mesh plate 21; a dust detector 51 is fixedly connected to the inner wall of the dust box 5; the suspension mesh plate 21 swings and repeatedly hits the soft plate 32, and the vibration causes the dust adhered to the side wall of the suspension mesh plate 21 to fall off, and the fallen dust falls into the interior of the dust box 5 for collection, so as to avoid dust clogging the interior of the fixed box 11, thereby affecting the ventilation effect of the suspension mesh plate 21. When there is a lot of dust accumulated in the dust box 5, the model of the dust detector 51 is JH-GF1000, which is mainly used to detect the dust concentration in the ambient air. When the dust detector 51 senses that there is too much dust and it is not suitable for the construction personnel to work, it will send an alarm to the monitoring room to notify the construction personnel to leave the construction site to remove the dust.

[0035] The fixing box 11 is provided with a water tank inside; a water pump 6 is fixedly connected inside the fixing box 11; a water pipe 61 is fixedly connected to the end of the water pump 6; an atomizing nozzle 62 is fixedly connected to the bottom end of the water pipe 61; a sealing plug 63 is threadedly connected to the inner wall of the fixing box 11; an iron cover 64 is fixedly connected to the side wall of the camera 1; a heat conducting sheet 65 is fixedly connected to the inner wall of the iron cover 64; a vent pipe 66 is fixedly connected to the inner wall of the iron cover 64; water is poured into the water tank inside the fixing box 11, and the sealing plug 63 is threadedly sealed, and the water pump 6 extracts water from the water tank. The water is transported to the atomizing nozzle 62 through the water pipe 61 for spraying, evaporated by the hot air, and blown into the ventilation slot by the blowing fan blades 14, driving the sprayed water mist and cool wind to blow to the rear position of the camera 1. The water mist covers the side walls of the iron cover 64 to cool the side walls of the iron cover 64. The heat conductive sheet 65 absorbs the coolness to dissipate the heat to the rear of the camera 1, and the heat energy generated at the rear of the camera 1 is transmitted to the outside of the fixing box 11 through the air vent 66 to dissipate the heat to the rear position of the camera 1, thereby preventing the camera 1 from heating up due to long-term operation and failing to record completely in an emergency.

[0036] like Figures 4 to 5 As shown, the inner wall of the fixed box 11 is fixed with multiple groups of elastic hanging ropes 7; the side wall of the elastic hanging rope 7 is fixed with a rubber ball 71; the side wall of the rubber ball 71 is fixed with a breathing paper 72; the inner wall of the fixed box 11 is fixed with multiple groups of arc-shaped spring pieces 73, and the arc-shaped spring pieces 73 are located on the side of the rubber ball 71; the water mist sprayed by the atomizing nozzle 62 flows with the wind force in the ventilation slot, cools the wind in the ventilation slot, and the cold wind mixed with water mist blows on the side wall of the breathing paper 72, and the breathing paper 72 blocks the water mist. The cold air continues to pass through the breathing paper 72 and blows to the rear of the camera 1 for heat dissipation, thereby avoiding serious heating of the camera 1 when working for a long time. At the same time, the four groups of elastic hanging ropes 7 are swung under the influence of wind force, driving the four groups of rubber balls 71 to collide with each other and collide with the arc-shaped spring pieces 73, so that the side wall of the breathing paper 72 vibrates, and the residual moisture on the breathing paper 72 is shaken off to avoid moisture clogging the breathing paper 72.

[0037] The side wall of the rubber ball 71 is fixedly connected to a connecting rubber column 8; the bottom end of the connecting rubber column 8 is fixedly connected to a connecting rope 81, and the connecting rope 81 is located on the side of the breathing paper 72; the side wall of the connecting rope 81 is fixedly connected to multiple groups of spring plates 82; the side wall of the connecting rope 81 is sleeved with multiple groups of weight-bearing balls 83; the wind blows the breathing paper 72 to swing, and the connecting rope 81 swings with the gravity of the weight-bearing balls 83, driving the multiple groups of spring plates 82 to collide with the side walls of the two groups of breathing paper 72, so that the moisture on the side walls of the breathing paper 72 is shaken off, avoiding adhesion to the side walls of the breathing paper 72 and affecting the air circulation.

[0038] An arc-shaped groove is provided inside the fixed box 11; a return pipe 9 is fixedly connected to the inner wall of the fixed box 11, and the return pipe 9 is connected to the water storage tank; the water dripping from the side wall of the breathing paper 72 is stored in the arc-shaped groove inside the fixed box 11, and the arc surface of the arc-shaped spring piece 73 is used to guide the water. When too much water accumulates in the arc-shaped groove, the one-way valve inside the return pipe 9 is opened, and the water flows into the water storage tank inside the fixed box 11 through the return pipe 9, thereby recycling the water.

[0039] Embodiment 2

[0040] like Figure 6 As shown, compared with Example 1, another embodiment of the present invention is: a recovery filter 91 is fixedly connected to the interior of the fixed box 11; the recovery filter 91 is located at the arc groove; the breathing paper 72 swings and vibrates, and the moisture on the side wall of the breathing paper 72 is guided by the arc surface of the arc spring piece 73 and falls into the arc groove for storage, and the moisture is filtered by the recovery filter 91 to prevent impurities from entering the water storage tank and affecting the normal operation of the water pump 6.

[0041] Working principle: when constructing rail transit in a tunnel, a camera 1 is installed in the tunnel to monitor the construction environment. A fixing box 11 is fixedly connected to the side wall of the camera 1 to prevent dust from forming on the entire camera 1. When there is a lot of dust floating on the lens of the camera 1, the output end of the motor 13 rotates to drive the fan blades 14 to extract air from the outside. The fan frame 12 slides to squeeze the airbag 16. The gas inside the airbag 16 squeezes the sliding block 17 to slide. The sliding block 17 pushes the extrusion baffle 19 to rotate around the rotating shaft 18. The two sets of baffles 19 cover part of the shooting port in front of the lens, leaving a straight shooting hole. The air is blown at the lens of the camera 1 to blow the dust into the ventilation slot. , to prevent dust from floating onto the lens of the camera 1, thereby affecting the normal shooting of the camera 1, and the ventilation slot is annular and passes to the motor 13, and the air has a heat dissipation effect on the motor 13. At the same time, the filter 15 is used to filter the air extracted by the blowing fan blades 14 to reduce the entry of dust and impurities. When the blowing fan blades 14 stop rotating, the torsion spring of the rotating shaft 18 cooperates with the pulling rope 191 to drive the baffle 19 to reset and open the shooting port; the blowing fan blades 14 exhaust the dust that floats toward the camera 1 into the ventilation slot, and blow it on the side wall of the suspension mesh plate 21 to be filtered by the suspension mesh plate 21, thereby preventing dust from entering the interior of the ventilation slot, and at the same time, the wind force is used to blow the suspension mesh plate 21 to rotate on the side of the fixed shaft 2 The suspension mesh plate 21 swings and drives the No. 2 magnetic piece 24 to swing. The No. 2 magnetic piece 24 magnetically repels the No. 1 magnetic piece 23, so that the elastic plate 22 bends and blows the streamer with the wind. The No. 1 magnetic piece 23 moves away from the No. 2 magnetic piece 24. When the wind becomes smaller, the elastic plate 22 returns to its original position and drives the No. 1 magnetic piece 23 to repels the No. 2 magnetic piece 24. The No. 2 magnetic piece 24 hits the inner wall of the fixed box 11, so that the dust on the side wall of the suspension mesh plate 21 vibrates and falls off, further blowing and cooling the motor 13 to prevent dust from adhering to the side wall of the motor 13; the suspension mesh plate 21 swings under the influence of wind, and the No. 1 magnetic piece 23 on the elastic plate 22 repels the No. 2 magnetic piece 24, causing the suspension mesh plate 21 to bounce off and hit it. The side wall of the soft plate 32 is pushed, and the curved plates on both sides of the soft plate 32 are pushed to be impacted and bent, and the side wall of the suspension mesh plate 21 is scraped to scrape off the dust at the corresponding middle position of the suspension mesh plate 21, thereby enhancing the dust removal effect on the suspension mesh plate 21. At the same time, the elastic member 31 is forced to shrink and rebound, and repeatedly cooperates with the elastic plate 22 to vibrate the suspension mesh plate 21, thereby preventing the dust from adhering to the side wall of the suspension mesh plate 21; the elastic member 31 cooperates with the elastic plate 22 to make the suspension mesh plate 21 swing and vibrate, and at the same time, the curved soft plate 4 is driven to bend, and the impact ball 41 fixed at the bottom end of the curved soft plate 4 is impacted on the side wall of the suspension mesh plate 21 by the vibration, which has the effect of repeated shaking, thereby enhancing the effect of cleaning the dust on the side wall of the suspension mesh plate 21;The suspension mesh 21 swings and repeatedly hits the soft plate 32, and the vibration causes the dust adhered to the side wall of the suspension mesh 21 to fall off, and the fallen dust falls into the dust box 5 for collection, so as to prevent the dust from being blocked in the fixed box 11, thereby affecting the ventilation effect of the suspension mesh 21. When there is a lot of dust accumulated in the dust box 5, the model of the dust detector 51 is JH-GF1000, which is mainly used to detect the dust concentration in the ambient air. When the dust detector 51 senses that there is too much dust and it is not suitable for the construction personnel to work, it will send an alarm to the monitoring room to notify the construction personnel to leave the construction site to remove dust; water is poured into the fixed The water tank inside the box 11 is sealed with a sealing plug 63, the water pump 6 draws water from the water tank, and transports it to the atomizing nozzle 62 through the water pipe 61 for spraying, and cooperates with the fan blades 14 to blow air into the ventilation slot to drive the sprayed water mist to blow to the rear position of the camera 1, and the water mist covers the side wall of the iron cover 64 to cool the side wall of the iron cover 64, and the heat conductive sheet 65 absorbs the coolness to dissipate the heat to the rear of the camera 1, and the heat energy generated by the rear of the camera 1 is transmitted to the outside of the fixed box 11 through the vent pipe 66 to dissipate the heat to the rear position of the camera 1, so as to avoid the camera 1 from heating up when working for a long time. In an emergency, it is impossible to record completely; the water mist sprayed by the atomizing nozzle 62 flows with the wind in the ventilation slot, cooling the wind in the ventilation slot, and the cold wind mixed with water mist blows on the side wall of the breathing paper 72, and the breathing paper 72 blocks the water mist, and the cold air continues to pass through the breathing paper 72 to blow to the rear of the camera 1 for heat dissipation, so as to avoid the camera 1 from working for a long time and overheating seriously. At the same time, the four groups of elastic hanging ropes 7 are swung by the wind, driving the four groups of rubber balls 71 to collide with each other and with the arc-shaped shrapnel 73, so that the side wall of the breathing paper 72 vibrates, and the residual water on the breathing paper 72 is shaken off to avoid the water blocking the breathing paper 72; the wind The force blows the breathing paper 72 to swing, and the connecting rope 81 swings with the gravity of the weighted ball 83, driving the multiple groups of spring plates 82 to hit the side walls of the two groups of breathing papers 72, so that the moisture on the side walls of the breathing paper 72 is shaken off, avoiding adhesion to the side walls of the breathing paper 72 and affecting the air circulation; the moisture shaken off the side walls of the breathing paper 72 drops and is stored in the arc groove inside the fixed box 11, and cooperates with the arc surface of the arc spring plate 73 to guide the moisture. When too much moisture is stored in the arc groove, the one-way valve inside the return pipe 9 is opened, and the moisture flows into the water storage tank inside the fixed box 11 through the return pipe 9, which plays a role in recycling the moisture. ;

[0042] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0044] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A safety monitoring device for rail transit construction, characterized in that: The invention comprises a camera (1); a fixing box (11) is fixedly connected to the side wall of the camera (1); a fan frame (12) is slidably connected to the inner wall of the fixing box (11); a motor (13) is fixedly connected to the inner wall of the fan frame (12); a fan blade (14) is fixedly connected to the output end of the motor (13); a filter screen (15) is fixedly connected to the inner wall of the fixing box (11); a ventilation slot is provided inside the fixing box (11); an air bag (16) is fixedly connected to the inner wall of the fixing box (11); a matching slider (17) is slidably connected to the inner wall of the fixing box (11); a rotating shaft (18) is rotatably connected to the inner wall of the fixing box (11), and the rotating shaft (18) is rotatably connected to the inner wall of the fixing box (11). 8) a fixed torsion spring; a baffle (19) is fixedly connected to the side wall of the rotating shaft (18); a pulling rope (191) is fixedly connected to the side wall of the matching slider (17); the output end of the motor (13) rotates to drive the fan blades (14) to extract air from the outside, the fan frame (12) slides to squeeze the air bag (16), the gas inside the air bag (16) squeezes the matching slider (17) to slide, the matching slider (17) pushes the extrusion baffle (19) to rotate around the rotating shaft (18), the two sets of baffles (19) cover the shooting port in front of the lens, when the fan blades (14) stop rotating, the rotating shaft (18) torsion spring cooperates with the pulling rope (191) to drive the baffle (19) to reset, and open the shooting port.

2. A safety monitoring device for rail transit construction according to claim 1, characterized in that: The inner side wall of the fixed box (11) is fixedly connected to a fixed shaft (2); the side wall of the fixed shaft (2) is rotatably connected to a suspension mesh plate (21); the inner side wall of the fixed box (11) is fixedly connected to an elastic plate (22); the end of the elastic plate (22) is fixedly connected to a first magnetic piece (23); the side wall of the first magnetic piece (23) is fixedly connected to a streamer; the side wall of the suspension mesh plate (21) is fixedly connected to a second magnetic piece (24); the first magnetic piece (23) and the second magnetic piece (24) have a magnetic effect.

3. A safety monitoring device for rail transit construction according to claim 2, characterized in that: A fixing block (3) is fixedly connected to the inner side wall of the fixing box (11); an elastic member (31) is fixedly connected to the inner side wall of the fixing block (3); a pushing soft plate (32) is fixedly connected to the side wall of the elastic member (31); and the pushing soft plate (32) is in a "W" shape.

4. A safety monitoring device for rail transit construction according to claim 2, characterized in that: The side walls of the suspension mesh plate (21) are fixedly connected to a plurality of groups of curved soft plates (4); and the bottom ends of the curved soft plates (4) are fixedly connected to impact balls (41).

5. A safety monitoring device for rail transit construction according to claim 3, characterized in that: The inner wall of the fixed box (11) is slidably connected to a dust collecting box (5); a through hole is provided at the end of the dust collecting box (5) and is located at the bottom end of the suspension mesh plate (21); and a dust detector (51) is fixedly connected to the inner wall of the dust collecting box (5).

6. A safety monitoring device for rail transit construction according to claim 5, characterized in that: A water storage tank is provided inside the fixing box (11); a water pump (6) is fixedly connected inside the fixing box (11); a water pipe (61) is fixedly connected to the end of the water pump (6); an atomizing nozzle (62) is fixedly connected to the bottom end of the water pipe (61); a sealing plug (63) is threadedly connected to the inner wall of the fixing box (11); an iron cover (64) is fixedly connected to the side wall of the camera (1); a heat conducting sheet (65) is fixedly connected to the inner wall of the iron cover (64); and a vent pipe (66) is fixedly connected to the inner wall of the iron cover (64).

7. A safety monitoring device for rail transit construction according to claim 6, characterized in that: The inner side wall of the fixed box (11) is fixedly connected to a plurality of sets of elastic hanging ropes (7); the side wall of the elastic hanging rope (7) is fixedly connected to a rubber ball (71); the side wall of the rubber ball (71) is fixedly connected to a breathing paper (72); the inner side wall of the fixed box (11) is fixedly connected to a plurality of sets of arc-shaped spring sheets (73), and the arc-shaped spring sheets (73) are located on the side of the rubber ball (71).

8. A safety monitoring device for rail transit construction according to claim 7, characterized in that: The side wall of the rubber ball (71) is fixedly connected to a connecting rubber column (8); the bottom end of the connecting rubber column (8) is fixedly connected to a connecting rope (81), and the connecting rope (81) is located on the side of the breathing paper (72); the side wall of the connecting rope (81) is fixedly connected to multiple groups of spring plates (82); and the side wall of the connecting rope (81) is sleeved with multiple groups of weighted balls (83).

9. A safety monitoring device for rail transit construction according to claim 7, characterized in that: An arc-shaped groove is provided inside the fixing box (11); a return pipe (9) is fixedly connected to the inner wall of the fixing box (11), and the return pipe (9) is connected to the water storage tank.

10. A safety monitoring device for rail transit construction according to claim 9, characterized in that: A recovery filter screen (91) is fixedly connected to the interior of the fixing box (11); the recovery filter screen (91) is located at the arc-shaped groove.

Images