Leakage-proof detection device and method for rain shed roof of railway station building

Abstract

The invention belongs to the technical field of roof leak-proof detection, and particularly relates to a leak-proof detection device and method for a rain shed roof of a railway station building, the leak-proof detection device comprises a support frame and a detection mechanism mounted on the support frame, the detection mechanism comprises a pressing part, a vacuum pump, a suction cup, a water storage cavity and a fixed disc, and support mechanisms are arranged at two ends of the support frame. According to the railway station building canopy roof damage detection device, the damaged part of the railway station building canopy roof can be accurately detected, the accuracy of railway station building canopy roof damage detection is guaranteed, a water storage cavity can be fixed to the top of a railway station building canopy through mutual cooperation of a vacuum pump and a suction cup, and detection water can be temporarily stored through the arrangement of the water storage cavity; and normal work of the detection mechanism is ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of roof leak detection, and particularly relates to a leak detection device and method for the roof of a rain shed of a railway station building. Background Art

[0002] A rain shed of a railway station building is a shed set up by the station to protect passengers getting on and off the train from sun and rain. It is generally set up in rainy areas, as well as stations with large passenger flow and a large number of passengers getting on and off the train at one time. The building materials of the main structure of the passenger platform rain shed include wood, steel, reinforced concrete, prestressed concrete, etc., and the shed surface materials include asbestos tiles, corrugated iron, reinforced concrete slabs, etc.

[0003] If the rain shed of the railway station building has been built for a long time, the roof of the rain shed of the railway station building is invaded by wind and rain. Over time, the waterproof layer of the roof of the rain shed of the railway station building will fail, and finally the roof of the rain shed of the railway station building will leak. At this time, the roof panel layer of the rain shed of the railway station building has been damaged. If it is allowed to develop, under the continuous corrosion of rain or snow, it will cause more extensive damage to the roof panel layer, seriously increasing the later maintenance cost. Therefore, it is very necessary to detect the leakage of the rain shed of the railway station building in advance. Timely discovery of the leakage point can not only reduce the damage to the building itself caused by the leakage, but also repair the leakage point in advance to reduce the loss. Therefore, the present application designs a leak detection device for the roof of the rain shed of the railway station building. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a leak detection device and method for the roof of a rain shed of a railway station building. The device can accurately detect the damaged parts of the roof of the rain shed of the railway station building, ensure the accuracy of the damage detection of the roof of the rain shed of the railway station building, and the water storage cavity can be fixed on the top of the rain shed of the railway station building through the mutual cooperation of the vacuum pump and the suction cup. The setting of the water storage cavity can temporarily store the detection water and ensure the normal operation of the detection mechanism.

[0005] In order to achieve the above purpose, the technical solution adopted by the present invention is: A leak detection device for the roof of a rain shed of a railway station building, comprising a support frame and a detection mechanism installed on the support frame; The detection mechanism includes a pressing member, a vacuum pump, a suction cup, a water storage cavity and a fixing plate. The pressing member is arranged on the support frame, the fixing plate is connected to the pressing member, the water storage cavity is arranged at the bottom of the fixing plate and is connected to the fixing plate, the suction cup is arranged at the bottom of the water storage cavity, the vacuum pump is arranged on the top of the fixing plate and is connected to the suction cup. The vacuum pump cooperates with the suction cup to adsorb the water storage cavity on the roof of the rain shed of the railway station building to be detected. An inlet pipe is also arranged on the fixing plate, and a first control valve is arranged on the inlet pipe; Support mechanisms are also provided at both ends of the support frame.

[0006] Preferably, the support frame includes two parallel support rods and support plates installed at both ends of the support rods. Vertical rods are fixedly arranged on both sides of the bottom center line of the support plate. A support plate is fixedly installed at the bottom of the vertical rod. Moving wheels are arranged on both sides of the bottom center line of the support plate. The support frame is used to support the detection mechanism to ensure the normal operation of the detection mechanism. The moving wheels facilitate the movement of the device and improve the flexibility of the device.

[0007] Preferably, the pressing member includes a fixed frame, a sliding plate, a lower pressing plate, a pressing rod, a connecting rod and a first spring. Vertical plates are arranged on both sides of the fixed frame. A bend is arranged at the top of the vertical plate. A cylinder is arranged at the top of the bend. The sliding plate is slidably arranged on the vertical plate. The lower pressing plate is fixedly installed at the end of the sliding plate. The pressing rods are symmetrically arranged on both sides of the bottom center line of the lower pressing plate. The bottom of the pressing rod penetrates through the fixed disk and extends below the fixed disk. The pressing rod is slidably connected with the fixed disk. The connecting rod is arranged below the fixed disk, and both ends of the connecting rod are fixedly connected with the pressing rods on both sides of the center line of the lower pressing plate. The first spring is sleeved on the pressing rod, and the first spring is located between the lower pressing plate and the fixed disk. The pressing member is used to drive the water storage cavity and the suction cup to move downward, and the first spring can provide pressure for the fixed disk to ensure that the water storage cavity is always in a stable state during operation, ensuring the detection efficiency and detection quality of the device.

[0008] Preferably, a pressurizing member is also arranged on the top of the fixed disk. The pressurizing member includes a pressurizing cylinder, a piston arranged in the pressurizing cylinder, a bracket, a lead screw and a handle. The pressurizing cylinder is fixedly installed on the top of the middle part of the fixed disk and is communicated with the water storage cavity. The bracket is fixedly installed on the top of the fixed disk. The bracket cooperates with the pressing member. The lead screw is threadedly connected with the bracket, and the bottom of the lead screw penetrates through the pressurizing cylinder and is rotatably connected with the piston. The handle is fixedly installed on the top of the lead screw. The pressurizing member is used to pressurize the water storage cavity to ensure that the water in the water storage cavity can quickly flow out from the damaged part of the roof of the railway station house awning, improving the detection efficiency and detection quality of the device for the roof of the railway station house awning.

[0009] Preferably, the bracket includes a top rod and vertical rods fixedly installed at both ends of the top rod. The vertical rods are fixedly installed on the fixed disk. A chute is opened on the lower pressing plate. The chute is slidably connected with the vertical rod. A guiding groove is opened on the outer side of the support rod. A guide rail is installed on the vertical plate. The guide rail is slidably matched with the guiding groove. The lead screw is threadedly connected with the top rod. The bracket is used to ensure the normal operation of the lead screw. The guide rail and the guiding groove are used to guide the normal up and down movement of the water storage cavity and the fixed plate.

[0010] Preferably, a blower, a connecting pipe and a fixing plate are provided on the pressure cylinder. Two ends of the fixing plate are respectively connected to the side wall of the pressure cylinder and one of the vertical rods. Two ends of the connecting pipe are respectively connected to the blower and the pressure cylinder. A second control valve is installed on the connecting pipe. The blower, the connecting pipe and the fixing plate can pressurize the water storage cavity, ensuring that the detection water can flow out more quickly from the damaged part of the roof of the railway station house canopy, greatly improving the detection efficiency.

[0011] Preferably, it further includes a negative pressure cavity and a pressure relief valve. The negative pressure cavity is arranged on the side wall of the water storage cavity and is communicated with the suction cup. The vacuum pump is communicated with the negative pressure cavity. The pressure relief valve is fixedly installed on the top of the fixed plate and is communicated with the negative pressure cavity. The arrangement of the negative pressure cavity facilitates ensuring that the suction cup is always in a negative pressure state, ensuring that the suction cup is always in a stable state during operation. The arrangement of the pressure relief valve can quickly restore the pressure in the negative pressure cavity and the suction cup, improving the disassembly efficiency of the suction cup.

[0012] Preferably, it further includes an adjusting mechanism. The adjusting mechanism includes a first threaded rod, a second threaded rod, a mounting seat, a motor, a synchronous belt, a support block, a first belt pulley, a second belt pulley and a third belt pulley. The first threaded rod and the second threaded rod are arranged in parallel above the support rod, and the first threaded rod and the second threaded rod are rotatably installed on the support plates at both ends of the support rod through the mounting seat. The first belt pulley is fixedly installed at the end of the first threaded rod, and the second belt pulley is fixedly installed at the end of the second threaded rod. The support block is fixedly installed on the support plate. The motor is arranged on the support block, and the third belt pulley is fixedly installed on the output shaft of the motor. The synchronous belt can drive the first belt pulley, the second belt pulley and the third belt pulley to rotate simultaneously. A guide block is also fixedly installed on the vertical plate. The guide blocks on the two vertical plates of the fixed frame are respectively threadedly connected to the first threaded rod and the second threaded rod. The arrangement of the adjusting mechanism can adjust the position of the detection mechanism, ensuring that the detection mechanism can more accurately detect the damaged position of the roof of the railway station house canopy, improving the detection accuracy and the detection quality. By driving the third belt pulley to rotate by the motor, the third belt pulley drives the first belt pulley and the second belt pulley to rotate. The rotation of the first belt pulley and the second belt pulley will drive the first threaded rod and the second threaded rod to rotate. The rotation of the first threaded rod and the second threaded rod will drive the detection mechanism to move along the support rod, achieving the purpose of adjusting the position of the detection mechanism.

[0013] Preferably, a support mechanism is further provided on the support plate. The support mechanism includes a lifting plate, sliding rods, a blocking plate, an arc plate, a rotating arm, and a push-pull rod. The lifting plate is arranged below the support plate. The sliding rods are symmetrically arranged at both ends of the center line of the lifting plate, and the sliding rods are slidably connected to the support plate. The blocking plate is fixedly installed at the top of the sliding rods. The middle part of the rotating arm is rotatably installed on the side wall of the support plate. Both ends of the push-pull rod are respectively rotatably installed at the end of the rotating arm and the lifting plate. The arc plate is fixedly installed on the top of the support plate. The hinge joint of the rotating arm and the support plate coincides with the center of the arc plate. A fixing pin is installed on the rotating arm, and a number of fixing holes are evenly arranged on the arc plate. The fixing pin is matched with the fixing holes. The support mechanism is used to lift the moving wheels to prevent the moving wheels from moving on the roof of the railway station house canopy during work, so as to prevent affecting the adsorption quality of the suction cups. First, pull out the fixing pin from the fixing hole, and rotate the rotating arm around the hinge joint of the rotating arm and the support plate. When the rotating arm rotates, the lower end of the push-pull rod will push the lifting plate downward until the support frame is lifted, so that there is a gap between the moving wheels and the roof of the railway station house canopy.

[0014] Preferably, the support mechanism further includes a second spring. The second spring is sleeved on the sliding rod, and the second spring is located between the blocking plate and the support plate. A number of protrusions are arranged at the bottom of the lifting plate. The setting of the second spring can always provide an upward pulling force for the lifting plate, so as to ensure that there is always stress between the fixing pin and the fixing hole, prevent the fixing pin from falling out of the fixing hole during work, and ensure the normal operation of the device. The setting of the protrusions can increase the friction between the lifting plate and the roof of the railway station house canopy, prevent relative sliding between the lifting plate and the roof of the railway station house canopy during detection, and ensure the normal operation of the suction cup during the detection process.

[0015] A leak-proof detection method for the roof of a railway station house canopy, using the above-mentioned leak-proof detection device for the roof of a railway station house canopy, includes the following steps; S1. Place the device on the roof of the railway station house canopy and move the support frame to the designated position; S2. First, pull out the fixing pin from the fixing hole, and rotate the rotating arm around the hinge joint of the rotating arm and the support plate. When the rotating arm rotates, the lower end of the push-pull rod will push the lifting plate downward until the support frame is lifted, so that there is a gap between the moving wheels and the roof of the railway station house canopy; S3. Drive the third belt pulley to rotate through the motor. The rotation of the third belt pulley drives the first belt pulley and the second belt pulley to rotate through the synchronous belt. The rotation of the first belt pulley and the second belt pulley drives the first threaded rod and the second threaded rod to rotate simultaneously. The rotation of the first threaded rod and the second threaded rod can drive the pressing member to move along the support. When the pressing member moves to the designated position, insert the fixing pin into the fixing hole to fix the rotating arm; S4. The cylinder extends to drive the sliding plate, the lower pressing plate and the lower pressing rod to move downward. When the lower pressing plate and the lower pressing rod move downward, they will drive the water storage cavity and the suction cup to move downward. When the suction cup contacts the roof of the rain shed of the railway station building, continue to extend the piston rod of the cylinder. The sliding plate, the lower pressing plate and the lower pressing rod will continue to move downward. Under the action of the first spring, the fixed plate will be pressed downward so that the suction cup is in close contact with the roof of the rain shed of the railway station building. Open the vacuum pump to pump out the air in the negative pressure cavity, so that the suction cup is fixedly adsorbed on the roof of the rain shed of the railway station building; S5. Open the first control valve on the water inlet pipe and the second control valve on the connecting pipe, connect the movable end of the water inlet pipe with the external water source. The fan pumps out the gas in the water storage cavity, so as to form a negative pressure area in the water storage cavity. Then the water source will enter the water storage cavity along the water inlet pipe. When the water in the water storage cavity reaches the specified amount, close the fan, the first control valve and the second control valve; S6. Open the fan and the second control valve, and send air into the water storage cavity, so as to increase the pressure in the water storage cavity. When the specified pressure is reached, close the fan and the second control valve; S7. Determine the water leakage condition of the rain shed of the railway station building by observing the traces on the inner roof of the rain shed of the railway station building. If the water leakage traces are obvious, the water leakage position can be accurately judged. If the water leakage traces are not obvious, turn the handle to drive the lead screw to rotate. The rotation of the lead screw drives the piston to move downward along the pressure cylinder, continuously pressurize the water storage cavity, ensure that the water in the water storage cavity can quickly flow out from the damaged part of the roof of the rain shed of the railway station building. Finally, mark the damaged part of the roof of the rain shed of the railway station building for subsequent maintenance; S8. When disassembling, first open the first control valve, the second control valve and the fan. The fan sends air into the water storage cavity, and the water in the water storage cavity will flow out from the water inlet pipe, achieving the purpose of collecting water and ensuring that the detection water can be reused. Then open the pressure relief valve so that the pressure in the negative pressure cavity is the same as the atmospheric pressure, and remove the suction cup from the roof of the rain shed of the railway station building. The cylinder contracts to drive the sliding plate, the vertical plate, the fixed plate, the water storage cavity and the suction cup to reset. Finally, reset the support mechanism so that the moving wheels contact the roof of the rain shed of the railway station building.

[0016] The beneficial effects of the present invention are: 1). This device can accurately detect the damaged part of the roof of the rain shed of the railway station building, ensuring the accuracy of the damage detection of the roof of the rain shed of the railway station building. Through the mutual cooperation of the vacuum pump and the suction cup, the water storage cavity can be fixed on the top of the rain shed of the railway station building. The setting of the water storage cavity can temporarily store the detection water and ensure the normal operation of the detection mechanism.

[0017] 2). The setting of the support frame of this device is used to support the detection mechanism and ensure the normal operation of the detection mechanism. The setting of the moving wheels facilitates driving the device to move and improves the flexibility of the device.

[0018] 3) The pressing member of this device is used to drive the water storage cavity and the suction cup to move downward, and the function of the first spring can provide pressure for the fixed plate, ensuring that the water storage cavity is always in a stable state during operation, and guaranteeing the detection efficiency and quality of this device. 4) The pressurizing member of this device is used to pressurize the water storage cavity, ensuring that the water in the water storage cavity can quickly flow out from the damaged part of the roof of the railway station house awning, improving the detection efficiency and quality of this device for the roof of the railway station house awning.

[0019] 5) The bracket of this device is used to ensure the normal operation of the lead screw, and the settings of the guide rail and the guide groove are for the purpose of guiding the normal up and down movement of the water storage cavity and the fixed plate.

[0020] 6) The settings of the fan, connecting pipe and fixed plate of this device can pressurize the water storage cavity, ensuring that the detection water can flow out more quickly from the damaged part of the roof of the railway station house awning, greatly improving the detection efficiency.

[0021] 7) The setting of the negative pressure cavity of this device is convenient for ensuring that the suction cup is always in a negative pressure state, guaranteeing that the suction cup is always in a stable state during operation. The setting of the pressure relief valve can quickly restore the pressure in the negative pressure cavity and the suction cup, improving the disassembly efficiency of the suction cup.

[0022] 8) The setting of the adjustment mechanism of this device can adjust the position of the detection mechanism, ensuring that the detection mechanism can detect the damaged position of the roof of the railway station house awning more accurately, improving the detection accuracy and quality. The motor drives the third belt pulley to rotate, the third belt pulley drives the first belt pulley and the second belt pulley to rotate, and the rotation of the first belt pulley and the second belt pulley will drive the first threaded rod and the second threaded rod to rotate. The rotation of the first threaded rod and the second threaded rod will drive the detection mechanism to move along the support rod, achieving the purpose of adjusting the position of the detection mechanism.

[0023] 9) The support mechanism of this device is used to lift the moving wheels, preventing the moving wheels from moving on the roof of the railway station house awning during operation and preventing the influence on the adsorption quality of the suction cup. First, pull out the fixed pin from the fixing hole, rotate the rotating arm around the hinge joint of the rotating arm and the support plate. The rotation of the rotating arm will cause the lower end of the push-pull rod to push the lifting plate downward until the support frame is lifted, so that there is a gap between the moving wheels and the roof of the railway station house awning.

[0024] 10) The setting of the second spring of this device can always provide an upward pulling force for the lifting plate, thus ensuring that there is always stress between the fixing pin and the fixing hole, preventing the fixing pin from falling off the fixing hole during operation, ensuring the normal operation of the device. The setting of the protrusion can increase the friction between the lifting plate and the roof of the railway station house awning, preventing relative sliding between the lifting plate and the roof of the railway station house awning during detection, and ensuring the normal operation of the suction cup during detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Attached Figure 1 is a schematic structural diagram of the present invention.

[0026] Attached Figure 2 is a schematic structural diagram of the support frame in the present invention.

[0027] Attached Figure 3 is a schematic structural diagram of the adjusting mechanism in the present invention.

[0028] Attached Figure 4 is the present invention Figure 1 enlarged view at A.

[0029] Attached Figure 5 is a schematic structural diagram of the detection mechanism in the present invention.

[0030] Attached Figure 6 is a bottom view of the detection mechanism in the present invention.

[0031] Attached Figure 7 is a schematic installation structural diagram of the pressing member in the present invention.

[0032] Attached Figure 8 is a sectional view of the water storage cavity and the pressure cylinder in the present invention.

[0033] Attached Figure 9 is a schematic installation structural diagram of the bracket in the present invention.

[0034] Attached Figure 10 is a schematic structural diagram of the pressing-down member in the present invention.

[0035] Attached Figure 11 is a bottom view of the pressing-down member in the present invention.

[0036] In the figure: 1, support frame; 101, support rod; 102, moving wheel; 103, support plate; 104, support board; 105, vertical rod; 106, guide groove; 2, support mechanism; 201, rotating arm; 202, sliding rod; 203, second spring; 204, sealing plate; 205, arc plate; 206, fixing hole; 207, protrusion; 208, lifting plate; 209, push-pull rod; 2010, fixing pin; 3. Detection mechanism; 301. Vertical plate; 302. Pressing member; 303. Handle; 304. Lead screw; 305. Bracket; 306. Pressing cylinder; 307. Piston; 308. Water inlet pipe; 309. Fixed disk; 3010. Suction cup; 3011. Water storage cavity; 3012. Fan; 3013. Connecting pipe; 3014. Second control valve; 3015. Vacuum pump; 3016. Fixed plate; 3017. Negative pressure cavity; 3018. Pressure relief valve; 3019. First control valve; 3020. Ejector rod; 3021. Vertical rod; 3022. Bend; 3023. Cylinder; 3024. Slide plate; 3025. Lower pressing plate; 3026. Chute; 3027. Fixed frame; 3028. Connecting rod; 3029. Lower pressing rod; 3030. First spring; 3031. Guide block; 3032. Guide rail; 4. Adjusting mechanism; 401. Motor; 402. Third pulley; 403. Second pulley; 404. Timing belt; 405. Second threaded rod; 406. First threaded rod; 407. First pulley; 408. Support block; 409. Mounting seat. Detailed implementation manners

[0037] Next, in conjunction with the accompanying drawings, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention, 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 construed as a limitation to the present invention.

[0039] As Figure 1 shown, a leak-proof detection device for the roof of a railway station house awning includes a support frame 1 and a detection mechanism 3 installed on the support frame 1; the support frame 1 is used to support the detection mechanism 3 to ensure the normal operation of the detection mechanism 3.

[0040] In this embodiment, support mechanisms 2 are further provided at both ends of the support frame 1, and the support mechanisms 2 can ensure that the detection mechanism 3 is always in a stable state during operation.

[0041] In this embodiment, as Figure 1 , Figure 5 , Figure 6 , Figure 7 shown, the detection mechanism 3 includes a pressing member, a vacuum pump 3015, a suction cup 3010, a water storage chamber 3011, and a fixing plate 309. The pressing member is arranged on the support frame 1. The fixing plate 309 is connected to the pressing member. The water storage chamber 3011 is arranged at the bottom of the fixing plate 309 and is connected to the fixing plate 309. The suction cup 3010 is arranged at the bottom of the water storage chamber 3011. The vacuum pump 3015 is arranged on the top of the fixing plate 309 and is connected to the suction cup 3010. The vacuum pump 3015 cooperates with the suction cup 3010 to adsorb the water storage chamber 3011 on the roof of the rain shelter of the railway station building to be detected. An inlet pipe 308 is further arranged on the fixing plate 309, and a first control valve 3019 is arranged on the inlet pipe 308.

[0042] In this embodiment, as Figure 2 shown, the support frame 1 includes two parallel support rods 101 and support plates 104 installed at both ends of the support rods 101. Vertical rods 105 are fixedly arranged on both sides of the bottom center line of the support plates 104. A support plate 103 is fixedly installed at the bottom of the vertical rods 105. The support frame 1 is arranged to support the detection mechanism 3 and ensure the normal operation of the detection mechanism 3.

[0043] In this embodiment, moving wheels 102 are arranged on both sides of the bottom center line of the support plate 103. The moving wheels 102 are arranged to facilitate the movement of the device and improve the flexibility of the device.

[0044] In this embodiment, the moving wheels 102 can be universal wheels, which are convenient for the device to move flexibly on the roof of the rain shelter of the railway station building.

[0045] In this embodiment, as Figure 10 , Figure 11As shown in the figure, the pressing member includes a fixed frame 3027, a sliding plate 3024, a lower pressing plate 3025, a lower pressing rod 3029, a connecting rod 3028, and a first spring 3030. Vertical plates 301 are provided on both sides of the fixed frame 3027. A bend 3022 is provided at the top of the vertical plate 301, and a cylinder 3023 is provided at the top of the bend 3022. The sliding plate 3024 is slidably arranged on the vertical plate 301. The lower pressing plate 3025 is fixedly installed at the end of the sliding plate 3024. The lower pressing rods 3029 are symmetrically arranged on both sides of the bottom center line of the lower pressing plate 3025. The bottom of the lower pressing rod 3029 penetrates through the fixed disk 309 and extends below the fixed disk 309. The lower pressing rod 3029 is slidably connected to the fixed disk 309. The connecting rod 3028 is arranged below the fixed disk 309, and both ends of the connecting rod 3028 are fixedly connected to the lower pressing rods 3029 on both sides of the center line of the lower pressing plate 3025. The pressing member is used to drive the water storage cavity 3011 and the suction cup 3010 to move downward. When the cylinder 3023 extends, it drives the sliding plate 3024 to move downward. When the sliding plate 3024 moves downward, it will drive the lower pressing rod 3029 to move downward. When the lower pressing rod 3029 moves downward, it will drive the first spring 3030 to move downward. When the first spring 3030 moves downward, it will drive the fixed disk 309, the water storage cavity 3011, and the suction cup 3010 to move downward, so as to facilitate the fixed installation of the water storage cavity 3011 and the suction cup 3010 on the roof of the rain shelter of the railway station building.

[0046] In this embodiment, the setting of the fixed frame 3027 can ensure that both sides of the detection mechanism 3 move synchronously, prevent the detection mechanism 3 from tilting during the movement, and ensure the normal operation of the detection mechanism 3.

[0047] In this embodiment, as Figure 10 shown, the first spring 3030 is sleeved on the lower pressing rod 3029, and the first spring 3030 is located between the lower pressing plate 3025 and the fixed disk 309. The function of the first spring 3030 can provide pressure for the fixed disk 309, ensure that the water storage cavity 3011 is always in a stable state during operation, and ensure the detection efficiency and detection quality of the device.

[0048] In this embodiment, as Figure 5 、 Figure 7 、 Figure 8As shown in the figure, a pressing member 302 is further provided on the top of the fixed disk 309. The pressing member 302 includes a pressing cylinder 306, a piston 307 arranged in the pressing cylinder 306, a bracket 305, a lead screw 304 and a handle 303. The pressing cylinder 306 is fixedly installed on the top of the middle part of the fixed disk 309, and the pressing cylinder 306 is communicated with the water storage cavity 3011. The bracket 305 is fixedly installed on the top of the fixed disk 309. The bracket 305 is matched with the pressing-down member. The lead screw 304 is threadedly connected with the bracket 305, and the bottom of the lead screw 304 penetrates through the pressing cylinder 306 and is rotatably connected with the piston 307. The handle 303 is fixedly installed on the top of the lead screw 304. The pressing member 302 is used to pressurize the water storage cavity 3011 to ensure that the water in the water storage cavity 3011 can quickly flow out from the damaged part of the roof of the railway station house awning, improving the detection efficiency and detection quality of the device for the roof of the railway station house awning.

[0049] In this embodiment, as Figure 9 shown, the bracket 305 includes a top rod 3020 and vertical rods 3021 fixedly installed at both ends of the top rod 3020. The vertical rods 3021 are fixedly installed on the fixed disk 309. A sliding groove 3026 is formed in the lower pressing plate 3025. The sliding groove 3026 is slidably connected with the vertical rods 3021. The bracket 305 is used to ensure the normal operation of the lead screw 304. The arrangement of the sliding groove 3026 can play a role in guiding the vertical rods 3021 and prevent the vertical rods 3021 from shaking during the up and down movement, ensuring the normal operation of the water storage cavity 3011 and the suction cup 3010.

[0050] In this embodiment, as Figure 2 、 Figure 11 shown, a guiding groove 106 is formed on the outer side of the supporting rod 101, and a guide rail 3032 is installed on the vertical plate 301. The guide rail 3032 is slidably matched with the guiding groove 106. The lead screw 304 is threadedly connected with the top rod 3020. The arrangements of the guide rail 3032 and the guiding groove 106 play a role in guiding the normal up and down movement of the water storage cavity 3011 and the fixed plate 3016.

[0051] In this embodiment, as Figure 7 shown, a blower 3012, a connecting pipe 3013 and a fixed plate 3016 are arranged on the pressing cylinder 306. Both ends of the fixed plate 3016 are respectively connected with the side wall of the pressing cylinder 306 and one of the vertical rods 3021. Both ends of the connecting pipe 3013 are respectively connected with the blower 3012 and the pressing cylinder 306. A second control valve 3014 is installed on the connecting pipe 3013. The arrangements of the blower 3012, the connecting pipe 3013 and the fixed plate 3016 can pressurize the water storage cavity 3011 to ensure that the detection water can flow out more quickly from the damaged part of the roof of the railway station house awning, greatly improving the detection efficiency.

[0052] In this embodiment, as Figure 8 shown, it further includes a negative pressure chamber 3017. The negative pressure chamber 3017 is arranged on the side wall of the water storage chamber 3011, and the negative pressure chamber 3017 is communicated with the suction cup 3010. The vacuum pump 3015 is communicated with the negative pressure chamber 3017. The arrangement of the negative pressure chamber 3017 facilitates ensuring that the suction cup 3010 is always in a negative pressure state, ensuring that the suction cup 3010 is always in a stable state during the working process.

[0053] In this embodiment, as Figure 5 shown, it further includes a pressure relief valve 3018. The pressure relief valve 3018 is fixedly installed on the top of the fixed disk 309, and the pressure relief valve 3018 is communicated with the negative pressure chamber 3017. The arrangement of the pressure relief valve 3018 can quickly restore the pressure in the negative pressure chamber 3017 and the suction cup 3010, improving the disassembly efficiency of the suction cup 3010.

[0054] In this embodiment, as Figure 3 shown, it further includes an adjusting mechanism 4. The adjusting mechanism 4 includes a first threaded rod 406, a second threaded rod 405, a mounting seat 409, a motor 401, a synchronous belt 404, a support block 408, a first belt pulley 407, a second belt pulley 403 and a third belt pulley 402. The first threaded rod 406 and the second threaded rod 405 are arranged in parallel above the support rod 101, and the first threaded rod 406 and the second threaded rod 405 are rotatably installed on the support plates 104 at both ends of the support rod 101 through the mounting seat 409. The first belt pulley 407 is fixedly installed at the end of the first threaded rod 406, and the second belt pulley 403 is fixedly installed at the end of the second threaded rod 405. The support block 408 is fixedly installed on the support plate 104. The motor 401 is arranged on the support block 408, and the third belt pulley 402 is fixedly installed on the output shaft of the motor 401. The synchronous belt 404 can drive the first belt pulley 407, the second belt pulley 403 and the third belt pulley 402 to rotate simultaneously. The arrangement of the adjusting mechanism 4 can adjust the position of the detection mechanism 3, ensuring that the detection mechanism 3 can more accurately detect the damaged position of the roof of the railway station house awning, improving the detection accuracy and the detection quality. By driving the third belt pulley 402 to rotate through the motor 401, the third belt pulley 402 drives the first belt pulley 407 and the second belt pulley 403 to rotate. The rotation of the first belt pulley 407 and the second belt pulley 403 will drive the first threaded rod 406 and the second threaded rod 405 to rotate. The rotation of the first threaded rod 406 and the second threaded rod 405 will drive the detection mechanism 3 to move along the support rod 101, achieving the purpose of adjusting the position of the detection mechanism 3.

[0055] In this embodiment, auxiliary wheels that cooperate with the synchronous belt 404 can also be arranged on both sides of the motor 401, so as to increase the wrap angle of the synchronous belt 404 and the third pulley 402, ensuring that the third pulley 402 can always drive the synchronous belt 404 to move.

[0056] In this embodiment, the first threaded rod 406 and the second threaded rod 405 are arranged in parallel, which can ensure that both sides of the detection mechanism 3 can move simultaneously, prevent the detection mechanism 3 from tilting during the movement process, and ensure the normal operation of the detection mechanism 3.

[0057] In this embodiment, as Figure 11 shown, a guide block 3031 is also fixedly installed on the vertical plate 301. The guide blocks 3031 on the vertical plates 301 on both sides of the fixed frame 3027 are respectively threadedly connected to the first threaded rod 406 and the second threaded rod 405. When the first threaded rod 406 and the second threaded rod 405 rotate, they will drive the guide block 3031 to move along the direction of the support rod 101, and the movement of the guide block 3031 realizes the purpose of driving the detection mechanism 3 to move.

[0058] In this embodiment, as Figure 4 shown, a support mechanism 2 is also arranged on the support plate 104. The support mechanism 2 includes a lifting plate 208, a sliding rod 202, a plugging plate 204, an arc plate 205, a rotating arm 201 and a push-pull rod 209. The lifting plate 208 is arranged below the support plate 104. The plugging plate 204 is fixedly installed at the top of the sliding rod 202. The middle part of the rotating arm 201 is rotatably installed on the side wall of the support plate 104. The two ends of the push-pull rod 209 are respectively rotatably installed at the end of the rotating arm 201 and the lifting plate 208. The arc plate 205 is fixedly installed at the top of the support plate 104. The hinge joint of the rotating arm 201 and the support plate 104 coincides with the center of the arc plate 205. The support mechanism 2 is used to lift the moving wheel 102 to prevent the moving wheel 102 from moving on the roof of the railway station house awning during the working process, so as to prevent affecting the adsorption quality of the suction cup 3010. First, pull out the fixing pin 2010 from the fixing hole 206, and rotate the rotating arm 201 around the hinge joint of the rotating arm 201 and the support plate 104. When the rotating arm 201 rotates, the lower end of the push-pull rod 209 will push the lifting plate 208 to move downward until the support frame 1 is lifted, so that there is a gap between the moving wheel 102 and the roof of the railway station house awning.

[0059] In this embodiment, as Figure 4 shown, the sliding rods 202 are symmetrically arranged at both ends of the center line of the lifting plate 208, and the sliding rods 202 are slidably connected to the support plate 104. The sliding rods 202 are arranged to provide guidance and limitation during the lifting process of the lifting plate 208, preventing the lifting plate 208 from shaking during the lifting process.

[0060] In this embodiment, as Figure 4 shown, a fixing pin 2010 is installed on the rotating arm 201, and a number of fixing holes 206 are uniformly arranged on the arc-shaped plate 205. The fixing pin 2010 cooperates with the fixing holes 206 to ensure that the rotating arm 201 is always in a stable state during operation, ensuring the normal operation of the device.

[0061] In this embodiment, as Figure 4 shown, the support mechanism 2 further includes a second spring 203. The second spring 203 is sleeved on the sliding rod 202, and the second spring 203 is located between the plugging plate 204 and the support plate 104. The setting of the second spring 203 can always provide an upward pulling force for the lifting plate 208, thereby ensuring that there is always stress between the fixing pin 2010 and the fixing holes 206, preventing the fixing pin 2010 from falling out of the fixing holes 206 during operation, and ensuring the normal operation of the device.

[0062] In this embodiment, as Figure 4 shown, a number of protrusions 207 are provided at the bottom of the lifting plate 208. The setting of the protrusions 207 can increase the friction between the lifting plate 208 and the roof of the railway station house canopy, preventing relative sliding between the lifting plate 208 and the roof of the railway station house canopy during detection, and ensuring the normal operation of the suction cup 3010 during the detection process.

[0063] A leak prevention detection method for the roof of a railway station house canopy, using the above-mentioned leak prevention detection device for the roof of a railway station house, includes the following steps; S1. Place the device on the roof of the railway station house canopy and move the support frame 1 to the designated position; S2. First, pull out the fixing pin 2010 from the fixing holes 206, and rotate the rotating arm 201 around the hinge point between the rotating arm 201 and the support plate 104. The rotation of the rotating arm 201 will cause the lower end of the push-pull rod 209 to push the lifting plate 208 downward until the support frame 1 is lifted, so that there is a gap between the moving wheels 102 and the roof of the railway station house canopy, and then insert the fixing pin 2010 into the fixing holes 206 to fix the rotating arm 201; S3. Drive the third belt pulley 402 to rotate through the motor 401. The rotation of the third belt pulley 402 drives the first belt pulley 407 and the second belt pulley 403 to rotate through the synchronous belt 404. The rotation of the first belt pulley 407 and the second belt pulley 403 drives the first threaded rod 406 and the second threaded rod 405 to rotate simultaneously. The rotation of the first threaded rod 406 and the second threaded rod 405 can drive the pressing member to move along the support until the pressing member moves to the designated position; S4. The cylinder 3023 extends to drive the sliding plate 3024, the lower pressing plate 3025 and the lower pressing rod 3029 to move downward. While the lower pressing plate 3025 and the lower pressing rod 3029 move downward, they will drive the water storage cavity 3011 and the suction cup 3010 to move downward. When the suction cup 3010 contacts the roof of the railway station house awning, continue to extend the piston rod 307 of the cylinder 3023, and the sliding plate 3024, the lower pressing plate 3025 and the lower pressing rod 3029 will continue to move downward. Under the action of the first spring 3030, it will press the fixed plate 309 downward so that the suction cup 3010 is in close contact with the roof of the railway station house awning. Open the vacuum pump 3015 to pump out the air in the negative pressure cavity 3017, so that the suction cup 3010 is fixedly adsorbed on the roof of the railway station house awning; S5. Open the first control valve 3019 on the water inlet pipe 308 and the second control valve 3014 on the connecting pipe 3013, connect the movable end of the water inlet pipe 308 to the external water source, and the fan 3012 pumps out the gas in the water storage cavity 3011, thereby forming a negative pressure area in the water storage cavity 3011, and the water source will enter the water storage cavity 3011 along the water inlet pipe 308. When the water in the water storage cavity 3011 reaches the specified amount, close the fan 3012, the first control valve 3019 and the second control valve 3014; S6. Open the fan 3012 and the second control valve 3014 to transport air into the water storage cavity 3011, thereby increasing the pressure in the water storage cavity 3011. When the specified pressure is reached, close the fan 3012 and the second control valve 3014; S7. Determine the water leakage condition of the railway station house awning by observing the traces on the inner roof of the railway station house awning. If the water leakage traces are obvious, the water leakage position can be accurately judged. If the water leakage traces are not obvious, the handle 303 can be rotated to drive the lead screw 304 to rotate, and the lead screw 304 rotates to drive the piston 307 to move downward along the pressure cylinder 306, continuously pressurize the water storage cavity 3011, ensure that the water in the water storage cavity 3011 can quickly flow out from the damaged part of the roof of the railway station house awning, and finally, mark the damaged part of the roof of the railway station house awning for subsequent maintenance; S8. During disassembly, first open the first control valve 3019, the second control valve 3014 and the fan 3012. The fan 3012 transports air into the water storage cavity 3011, and the water in the water storage cavity 3011 will flow out from the water inlet pipe 308 to achieve the purpose of water collection, ensure that the detected water can be reused, then open the pressure relief valve 3018 to make the pressure in the negative pressure cavity 3017 the same as the atmospheric pressure, remove the suction cup 3010 from the roof of the railway station house awning, the cylinder 3023 contracts to drive the sliding plate 3024, the vertical plate 301, the fixed plate 309, the water storage cavity 3011 and the suction cup 3010 to reset. Finally, reset the support mechanism 2 so that the moving wheel 102 contacts the roof of the railway station house awning.

[0064] The above content is only an example and explanation of the structure of the present invention. Those skilled in the art of this technology can make various modifications, supplements, or use similar methods to replace the specific embodiments described. As long as it does not deviate from the scope defined by the structure of the present invention, it shall fall within the protection scope of the present invention.

Claims

1. A leak prevention detection device for the roof of a railway station shed, characterized in that It includes a support frame and a detection mechanism installed on the support frame; The detection mechanism includes a pressing member, a vacuum pump, a suction cup, a water storage chamber and a fixed disk. The pressing member is arranged on the support frame, the fixed disk is connected with the pressing member, the water storage chamber is arranged at the bottom of the fixed disk and is connected with the fixed disk. The suction cup is arranged at the bottom of the water storage chamber, and the vacuum pump is arranged at the top of the fixed disk and is connected with the suction cup. The vacuum pump cooperates with the suction cup to adsorb the water storage chamber on the roof of the rain shelter of the railway station house to be detected. An inlet pipe is also arranged on the fixed disk, and a first control valve is arranged on the inlet pipe; Support mechanisms are also arranged at both ends of the support frame.

2. The leak prevention detection device for the roof of a railway station shed according to claim 1, characterized in that, The support frame includes two parallel support rods and support plates installed at both ends of the support rods. Vertical rods are fixedly arranged on both sides of the center line of the bottom of the support plate. A support plate is fixedly installed at the bottom of the vertical rod, and moving wheels are arranged on both sides of the center line of the bottom of the support plate.

3. The leak prevention detection device for the roof of a railway station shed according to claim 2, characterized in that, The pressing member includes a fixed frame, a sliding plate, a lower pressing plate, a pressing rod, a connecting rod and a first spring. Vertical plates are arranged on both sides of the fixed frame. A bend is arranged at the top of the vertical plate, and a cylinder is arranged at the top of the bend. The sliding plate is slidably arranged on the vertical plate. The lower pressing plate is fixedly installed at the end of the sliding plate. The pressing rods are symmetrically arranged on both sides of the center line of the bottom of the lower pressing plate. The bottom of the pressing rod penetrates through the fixed disk and extends below the fixed disk. The pressing rod is slidably connected with the fixed disk. The connecting rod is arranged below the fixed disk, and both ends of the connecting rod are fixedly connected with the pressing rods on both sides of the center line of the lower pressing plate. The first spring is sleeved on the pressing rod, and the first spring is located between the lower pressing plate and the fixed disk.

4. The leak prevention detection device for the roof of a railway station shed according to claim 3, characterized in that, A pressurizing member is also arranged on the top of the fixed disk. The pressurizing member includes a pressurizing cylinder, a piston arranged in the pressurizing cylinder, a support, a lead screw and a handle. The pressurizing cylinder is fixedly installed at the top of the middle part of the fixed disk and is communicated with the water storage chamber. The support is fixedly installed at the top of the fixed disk and cooperates with the pressing member. The lead screw is threadedly connected with the support, and the bottom of the lead screw penetrates through the pressurizing cylinder and is rotatably connected with the piston. The handle is fixedly installed at the top of the lead screw.

5. The leak prevention detection device for the roof of the rain shelter in the railway station building according to claim 4, characterized in that, The support includes a top rod and vertical rods fixedly installed at both ends of the top rod. The vertical rods are fixedly installed on the fixed disk. A sliding groove is opened on the lower pressing plate, and the sliding groove is slidably connected with the vertical rod. A guiding groove is opened on the outer side of the support rod, and a guide rail is installed on the vertical plate. The guide rail is slidably matched with the guiding groove. The lead screw is threadedly connected with the top rod.

6. The leak prevention detection device for the roof of the rain shed of a railway station building according to claim 5, characterized in that, A blower, a connecting pipe and a fixing plate are arranged on the pressurizing cylinder. Both ends of the fixing plate are respectively connected with the side wall of the pressurizing cylinder and one of the vertical rods. Both ends of the connecting pipe are respectively connected with the blower and the pressurizing cylinder. A second control valve is installed on the connecting pipe.

7. The leak prevention detection device for the roof of the rain shelter in the railway station house according to claim 1, characterized in that, It also includes a negative pressure chamber and a pressure relief valve. The negative pressure chamber is arranged on the side wall of the water storage chamber and is communicated with the suction cup. The vacuum pump is communicated with the negative pressure chamber. The pressure relief valve is fixedly installed at the top of the fixed disk and is communicated with the negative pressure chamber.

8. The leak prevention detection device for the roof of the rain shelter of a railway station building according to claim 3, characterized in that, It further includes an adjusting mechanism, which includes a first threaded rod, a second threaded rod, a mounting seat, a motor, a synchronous belt, a support block, a first pulley, a second pulley and a third pulley. The first threaded rod and the second threaded rod are arranged in parallel above the support rod, and the first threaded rod and the second threaded rod are rotatably mounted on the support plates at both ends of the support rod through the mounting seat. The first pulley is fixedly mounted at the end of the first threaded rod, and the second pulley is fixedly mounted at the end of the second threaded rod. The support block is fixedly mounted on the support plate, the motor is arranged on the support block, the third pulley is fixedly mounted on the output shaft of the motor, and the synchronous belt can drive the first pulley, the second pulley and the third pulley to rotate simultaneously. Guide blocks are also fixedly mounted on the vertical plates, and the guide blocks on the vertical plates on both sides of the fixed frame are respectively threadedly connected to the first threaded rod and the second threaded rod.

9. The leak prevention detection device for the roof of a railway station shed according to claim 2, wherein A support mechanism is also arranged on the support plate, and the support mechanism includes a lifting plate, sliding rods, a blocking plate, an arc plate, a rotating arm and a push-pull rod. The lifting plate is arranged below the support plate. The sliding rods are symmetrically arranged at both ends of the center line of the lifting plate, and the sliding rods are slidably connected to the support plate. The blocking plate is fixedly mounted on the top of the sliding rod. The middle part of the rotating arm is rotatably mounted on the side wall of the support plate. Both ends of the push-pull rod are respectively rotatably mounted on the end of the rotating arm and the lifting plate. The arc plate is fixedly mounted on the top of the support plate. The hinge joint of the rotating arm and the support plate coincides with the center of the arc plate. A fixing pin is mounted on the rotating arm, and a number of fixing holes are evenly arranged on the arc plate. The fixing pin is matched with the fixing holes. It further includes a second spring. The second spring is sleeved on the sliding rod, and the second spring is located between the blocking plate and the support plate. A number of protrusions are arranged at the bottom of the lifting plate.

10. A leak prevention detection method for the roof of a railway station shed, using a leak prevention detection device for the roof of a railway station shed according to any one of claims 1-9, characterized in that, It includes the following steps; S1. Place the device on the roof of the rain shelter of the railway station building, and move the support frame to the designated position; S2. First, pull out the fixing pin from the fixing hole, and rotate the rotating arm around the hinge joint of the rotating arm and the support plate. When the rotating arm rotates, the lower end of the push-pull rod will push the lifting plate downward until the support frame is lifted, so that there is a gap between the moving wheels and the roof of the rain shelter of the railway station building. Then insert the fixing pin into the fixing hole to fix the rotating arm; S3. Drive the third pulley to rotate through the motor. The rotation of the third pulley drives the first pulley and the second pulley to rotate through the synchronous belt. The rotation of the first pulley and the second pulley drives the first threaded rod and the second threaded rod to rotate simultaneously. The rotation of the first threaded rod and the second threaded rod can drive the pressing member to move along the support until the pressing member moves to the designated position; S4. The air cylinder extends to drive the sliding plate, the lower pressing plate and the lower pressing rod to move downward. When the lower pressing plate and the lower pressing rod move downward, they will drive the water storage cavity and the suction cup to move downward. When the suction cup contacts the roof of the rain shelter of the railway station building, continue to extend the piston rod of the air cylinder. The sliding plate, the lower pressing plate and the lower pressing rod will continue to move downward. Under the action of the first spring, the fixed plate will be pressed downward so that the suction cup is in close contact with the roof of the rain shelter of the railway station building. Then turn on the vacuum pump to pump out the air in the negative pressure cavity, so that the suction cup is fixedly adsorbed on the roof of the rain shelter of the railway station building; S5. Open the first control valve on the water inlet pipe and the second control valve on the connecting pipe, connect the movable end of the water inlet pipe to the external water source, and the fan pumps out the gas in the water storage cavity, thereby forming a negative pressure area in the water storage cavity. Then the water source will enter the water storage cavity along the water inlet pipe. When the water in the water storage cavity reaches the specified amount, turn off the fan, the first control valve and the second control valve; S6. Open the fan and the second control valve, and send air into the water storage cavity, thereby increasing the pressure in the water storage cavity. When the specified pressure is reached, turn off the fan and the second control valve; S7. Determine the water leakage condition of the rain shelter of the railway station building by observing the traces on the inner roof of the rain shelter of the railway station building. If the water leakage traces are obvious, the water leakage position can be accurately judged. If the water leakage traces are not obvious, the handle can be rotated to drive the lead screw to rotate, and the rotation of the lead screw drives the piston to move downward along the pressure cylinder, continuously pressurize the water storage cavity, ensure that the water in the water storage cavity can quickly flow out from the damaged part of the roof of the rain shelter of the railway station building. Finally, mark the damaged part of the roof of the rain shelter of the railway station building for subsequent maintenance; S8. During disassembly, first open the first control valve, the second control valve and the fan, and the fan sends air into the water storage cavity. The water in the water storage cavity will flow out from the water inlet pipe, achieving the purpose of collecting water and ensuring that the detection water can be reused. Then open the pressure relief valve to make the pressure in the negative pressure cavity the same as the atmospheric pressure, and remove the suction cup from the roof of the rain shelter of the railway station building. The cylinder contracts to drive the sliding plate, the vertical plate, the fixed disk, the water storage cavity and the suction cup to reset. Finally, reset the support mechanism so that the moving wheels are in contact with the roof of the rain shelter of the railway station building.

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