Spiral hose having a leak detection structure

Abstract

The present application belongs to the technical field of flange leakage prevention of soft tube, and particularly relates to a spiral soft tube with a leakage detection structure, which comprises a spiral tube body and a flange plate, and a warning gas storage assembly is sleeved on the flange plate; the warning gas storage assembly comprises an upper ring cavity, a lower ring cavity, a connecting disc, a fixed plate, a driven plate, an air inlet cavity, a gas storage cavity, a mist discharge cavity, a connecting rod, a driving plate, a gas storage bag and a bellows. When gas leaks, the leaked corrosive gas enters the upper ring cavity, the gas first pushes the driving plate inside the air inlet cavity to move, the driving plate extrudes the gas storage bag inside the mist discharge cavity through the driven plate, so that the colored smoke inside the gas storage bag is discharged, at this time, the staff can directly locate the position of the gas leakage at the spiral tube body convergence according to the position of the colored smoke, and warn the nearby non-workers to evacuate immediately; with the movement of the driving plate, a negative pressure is formed inside the gas storage cavity, and the leaked gas inside the air inlet cavity is sucked into the gas storage cavity and stored through the pressure difference.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of hose flange leakage prevention, and particularly relates to a spiral hose with a leakage detection structure. BACKGROUND

[0002] The spiral hose is a kind of pipeline material with a special structure, which is characterized by a spiral corrugated pipe made of metal steel strip. This structure makes the spiral hose perform well in many aspects and is widely used in various fields.

[0003] The spiral hose material includes PVC, PU (polyurethane), TPU (thermoplastic polyurethane), etc. These materials have good weather resistance, wear resistance and corrosion resistance, so the spiral hose has good resistance to a variety of chemical substances, is suitable for conveying corrosive liquids or gases, and the spiral hoses are mostly connected by flanges. With the continuous conveying of corrosive liquids or gases by the spiral hose, the gasket at the flange connection is easily corroded by the corrosive liquids or gases, resulting in leakage of the corrosive liquids or gases. The leaked liquids or gases are not easy to observe. If the position of the gas leakage is the hose convergence, it will cause the worker to be unable to locate the gas leakage position in the first time, and thus the worker cannot control the scene in time. The leaked corrosive gas will also damage the electrical devices around the flange, causing more serious accidents. SUMMARY

[0004] The present application aims to solve the technical problems in the prior art by providing a spiral hose with a leakage detection structure.

[0005] The purpose of the present application can be achieved by the following technical solution: a spiral hose with a leakage detection structure, comprising a spiral pipe body and a flange plate installed at the end thereof, the spiral pipe bodies are connected through the flange plates, and a warning gas storage assembly is sleeved on the flange plate;

[0006] The warning gas storage assembly comprises upper ring cavities and lower ring cavities, the upper ring cavities and the lower ring cavities are connected through a connecting disc, the upper ring cavities and the lower ring cavities are sealingly installed at the connecting gap between the flange plates, a fixed plate and a driven plate are fixedly installed in the upper ring cavities, the fixed plate and the driven plate sequentially divide the internal space of the upper ring cavities into an air inlet cavity, a gas storage cavity and a mist discharge cavity, the driven plate is connected with a driving plate through a connecting rod penetrating the fixed plate, the driving plate is located in the air inlet cavity, the driving plate is attached to the flange plate, a gas storage bag is installed in the mist discharge cavity, the gas storage bag stores colored smoke, and a bellows is connected between the driving plate and the fixed plate.

[0007] When the gas inside the spiral tube body leaks from the flange connection, the leaked gas enters the air inlet cavity and pushes the driving plate to move, the driving plate drives the driven plate to move synchronously through the connecting rod, the driven plate compresses the space inside the mist exhaust cavity and extrudes the gas storage bag, the colored smoke inside the gas storage bag is extruded and discharged through the driven plate, at the same time, negative pressure is generated inside the gas storage cavity, when the colored smoke inside the gas storage bag is exhausted, the corrugated pipe connects the air inlet cavity and the gas storage cavity, through the pressure difference between the gas storage cavity and the air inlet cavity, the leaked gas is quickly sucked into the gas storage cavity and stored.

[0008] Preferably, a constant pressure nozzle is installed on the gas storage bag, and the colored smoke inside the gas storage bag is discharged through the constant pressure nozzle.

[0009] Preferably, the fixed plate and the driving plate are respectively provided with air vents two and air vents one, the air vents two and the air vents one are connected through the corrugated pipe, the air vents two are provided with a blocking block two, the air vents one are provided with a blocking block one, the blocking block one is provided with a guide rod, the guide rod penetrates the blocking block two, one end of the guide rod away from the blocking block one is connected with a pull block plate, and the guide rod is provided with a push block plate.

[0010] Preferably, the blocking block two is fixedly provided with a limiting plate, the pull block plate contacts the limiting plate, and the limiting plate is connected with the fixed plate through micro telescopic rods at both ends.

[0011] Preferably, the upper ring cavity is provided, close to one end of the connecting disc, with a warning light assembly, the warning light assembly comprises a laser emitter and a laser head, the laser emitter is installed on one side of the upper ring cavity, a warning light cover is installed on the other side of the upper ring cavity, the laser head is aligned with the warning light cover, and a light shield plate is installed on the driven plate and located between the warning light cover and the laser head.

[0012] Preferably, a clamping head is installed on the upper ring cavity and clamped on both sides of the flange.

[0013] Preferably, a sealing head is installed on the upper ring cavity and attached to the flange.

[0014] Preferably, the spiral tube body comprises a tube body and a turn-up, the turn-up is located between the flanges, a sealing ring is further installed between the flanges, and the thickness of the sealing ring is smaller than the thickness of the turn-up.

[0015] The beneficial effects of the present application are as follows:

[0016] (1) When the gas in the spiral tube body leaks, the leaked corrosive gas can enter the upper ring cavity and the lower ring cavity, avoiding the spread of the leaked corrosive gas to the outside to erode the electrical devices around the flange plate, and the pressurized corrosive gas entering the inside of the upper ring cavity will first push the driving plate inside the air inlet cavity to move, so that the leaked gas enters the inside of the air inlet cavity, the driving plate moves the driven plate through the connecting rod, and the driving plate can extrude the gas storage bag inside the mist discharging cavity through the driven plate while moving, so that the colored smoke inside the gas storage bag is discharged from the constant pressure nozzle, at this time, the staff can directly locate the gas leakage position at the spiral tube body gathering place according to the position of the colored smoke, and warn the non-staff nearby to evacuate quickly.

[0017] In addition, with the synchronous movement of the driving plate and the driven plate, the space inside the mist discharging cavity is compressed, and a negative pressure is formed inside the gas storage cavity, when the driven plate discharges the colored smoke inside the gas storage bag, the bellows opens, and the leaked gas inside the air inlet cavity is sucked into the gas storage cavity through the pressure difference and stored, and after the warning gas storage assembly is disassembled, the corrosive gas stored in the gas storage cavity is treated separately, effectively avoiding the phenomenon that the corrosive gas leaks to the outside to pollute the air.

[0018] (2) In the present application, the light shield on the driven plate blocks the laser head in the normal state, so that the laser emitted by the laser head cannot reach the warning lamp shade, at this time, the warning lamp shade is in an extinguished state; when the leaked gas pushes the driving plate to move, the driving plate drives the driven plate to move synchronously through the connecting rod, at this time, the light shield on the driven plate is separated from the blocking of the laser head, at this time, the laser head can directly irradiate the warning lamp shade and light up the warning lamp shade, so that the staff can directly locate the position of the gas leakage through the warning lamp shade when working at night.

[0019] (3) The sealing ring is installed between the flange plates, and the thickness of the sealing ring is smaller than that of the flange, when the flange plates are connected by bolts, the flange plates will first extrude the flange with larger thickness, and then extrude the sealing ring, when the flange is excessively extruded, the sealing ring will convert the excessive extrusion force into the air tightness between the flange plates, avoiding excessive extrusion of the flange, and improving the sealing strength between the flange plates. BRIEF DESCRIPTION OF DRAWINGS

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

[0021] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0022] Figure 2 It is a schematic diagram of the installation structure of the warning gas storage assembly.

[0023] Figure 3 It is a schematic diagram of the installation position of the sealing ring.

[0024] Figure 4 A site structure diagram of Figure 3

[0025] Figure 5 Flange and warning gas storage assembly connection structure diagram.

[0026] Figure 6 B site structure diagram of Figure 5

[0027] Figure 7 Upper ring cavity internal structure sectional view.

[0028] Figure 8 C site structure diagram of Figure 7

[0029] Figure 9 Warning light assembly structure diagram.

[0030] Figure 10 D site structure diagram of Figure 9

[0031] Indicated in the figure: 1, spiral pipe body; 101, pipe body; 102, flange; 2, flange; 3, warning gas storage assembly; 301, upper ring cavity; 302, lower ring cavity; 303, connecting disc; 304, clamp; 305, mist discharge cavity; 306, gas storage cavity; 307, gas inlet cavity; 308, sealing head; 309, gas storage bag; 310, constant pressure nozzle; 311, driven plate; 312, connecting rod; 313, driving plate; 314, bellows; 315, fixed plate; 316, blocking block one; 317, limiting plate; 318, blocking block two; 319, guide rod; 320, pull block plate; 321, push block plate; 322, air vent one; 323, air vent two; 324, micro telescopic rod; 4, sealing ring; 5, warning light assembly; 501, laser emitter; 502, laser head; 503, warning light cover; 504, light shield. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] Referring to Figures 1-8 A spiral type hose with a leakage detection structure, comprising a spiral pipe body 1 and a flange 2 installed at the end thereof, the spiral pipe bodies 1 are connected through the flange 2, and a warning gas storage assembly 3 is sleeved on the flange 2.​​​​

[0034] The warning gas storage assembly 3 comprises an upper ring cavity 301 and a lower ring cavity 302, the upper ring cavity 301 and the lower ring cavity 302 are connected by a connecting disc 303, the upper ring cavity 301 and the lower ring cavity 302 are sealingly installed at the connecting gap between the flange plate 2, the inner part of the upper ring cavity 301 is fixedly installed with a fixed plate 315 and slidingly installed with a driven plate 311, the fixed plate 315 and the driven plate 311 divide the inner space of the upper ring cavity 301 into an air inlet cavity 307, a gas storage cavity 306 and a mist discharge cavity 305 in sequence, the driven plate 311 is connected with a driving plate 313 by penetrating the fixed plate 315 through a connecting rod 312, the driving plate 313 is located inside the air inlet cavity 307, the driving plate 313 is attached to the flange plate 2, a gas storage bag 309 is installed inside the mist discharge cavity 305, the gas storage bag 309 stores colored smoke, and a bellows 314 is connected between the driving plate 313 and the fixed plate 315.

[0035] When the gas in the spiral tube body 1 leaks from the connecting part of the flange plate 2, the leaked gas enters the air inlet cavity 307 and pushes the driving plate 313 to move, the driving plate 313 drives the driven plate 311 to move synchronously through the connecting rod 312, so that the driven plate 311 compresses the space inside the mist discharge cavity 305 and squeezes the gas storage bag 309, the colored smoke inside the gas storage bag 309 is squeezed out through the driven plate 311, and at the same time, a negative pressure is generated inside the gas storage cavity 306, when the colored smoke inside the gas storage bag 309 is exhausted, the bellows 314 connects the air inlet cavity 307 and the gas storage cavity 306, and through the pressure difference between the gas storage cavity 306 and the air inlet cavity 307, the leaked gas is quickly sucked into the gas storage cavity 306 and stored.

[0036] Specifically, the gas storage bag 309 is installed with a constant pressure nozzle 310, and the colored smoke inside the gas storage bag 309 is discharged through the constant pressure nozzle 310.

[0037] It should be noted that the internal structure of the lower ring cavity 302 is the same as that of the upper ring cavity 301, the upper ring cavity 301 and the lower ring cavity 302 are located in the upper half and the lower half of the flange plate 2 respectively, and the upper ring cavity 301 and the lower ring cavity 302 are sealingly installed at the connecting gap between the flange plate 2 by the connecting disc 303.

[0038] When the gas inside the spiral tube body 1 leaks, the leaked corrosive gas can enter the upper ring cavity 301 and the lower ring cavity 302, avoiding the spread of the leaked corrosive gas to the outside to erode the electrical devices around the flange plate 2. The pressurized corrosive gas inside the upper ring cavity 301 will first push the driving plate 313 inside the air inlet cavity 307 to move, allowing the leaked gas to enter the air inlet cavity 307. The driving plate 313 drives the driven plate 311 to move through the connecting rod 312. The driving plate 313 can press the gas storage bag 309 inside the mist discharge cavity 305 through the driven plate 311 while moving, allowing the colored smoke inside the gas storage bag 309 to be discharged from the constant-pressure nozzle 310. At this time, the staff can directly locate the gas leakage position at the gathering place of the spiral tube body 1 according to the position of the colored smoke, and warn nearby non-staff to evacuate quickly. With the synchronous movement of the driving plate 313 and the driven plate 311, the space inside the mist discharge cavity 305 is compressed, and a negative pressure is formed inside the gas storage cavity 306. When the driven plate 311 exhausts the colored smoke inside the gas storage bag 309, the bellows 314 is opened, and the leaked gas inside the air inlet cavity 307 is sucked into the gas storage cavity 306 through the pressure difference and stored.

[0039] After the staff controls the scene, the warning gas storage assembly 3 is removed, and the corrosive gas stored in the gas storage cavity 306 is treated separately. After the gas inside the gas storage cavity 306 is treated clean, the constant-pressure nozzle 310 is used to fill the colored smoke into the gas storage bag 309. Finally, the warning gas storage assembly 3 is corrected and put into normal use.

[0040] Referring to Figures 6-8 , the fixed plate 315 and the driving plate 313 are respectively provided with air vents two 323 and air vents one 322, the air vents two 323 and the air vents one 322 are connected through the bellows 314, the air vents two 323 are internally provided with a blocking block two 318, the air vents one 322 are internally provided with a blocking block one 316, the blocking block one 316 is provided with a guide rod 319, the guide rod 319 penetrates the blocking block two 318, one end of the guide rod 319 away from the blocking block one 316 is connected with a pull block plate 320, and the guide rod 319 is provided with a push block plate 321.

[0041] Specifically, the blocking block two 318 is fixedly provided with a limiting plate 317, the pull block plate 320 contacts the limiting plate 317, and the limiting plate 317 is connected with the fixed plate 315 through the micro telescopic rod 324 at both ends.

[0042] It should be noted that the steel ring built-in the bellows 314 can realize reset after compression, and the recovery efficiency of the bellows 314 can be improved by adding a spring between the driving plate 313 and the fixed plate 315.

[0043] When the gas inside the spiral tube body 1 leaks, the leaked corrosive gas can enter the upper ring cavity 301 and the lower ring cavity 302, avoiding the spread of the leaked corrosive gas to the outside to erode the electrical devices around the flange plate 2. The pressurized corrosive gas inside the upper ring cavity 301 will first push the driven plate 313 inside the air inlet cavity 307 to move, causing the driven plate 313 to compress the bellows 314 between the driven plate 313 and the fixed plate 315. At the same time, the sealing block one 316 on the driven plate 313 moves synchronously with the driven plate 313, and the sealing block one 316 moves to drive the guide rod 319 to slide inside the sealing block two 318. At this time, the sealing block one 316 blocks the air vent one 322 on the driven plate 313, and the sealing block two 318 blocks the air vent two 323 on the fixed plate 315. As the driven plate 313 moves and the leaked gas enters the air inlet cavity 307, the driven plate 313 drives the driven plate 311 to move through the connecting rod 312. The driven plate 313 can extrude the gas storage bag 309 inside the mist discharge cavity 305 through the driven plate 311 while moving, causing the colored smoke inside the gas storage bag 309 to be discharged from the constant-pressure nozzle 310. At this time, the staff can directly locate the gas leakage position at the gathering place of the spiral tube body 1 according to the position of the colored smoke, and warn nearby non-staff to evacuate quickly. As the driven plate 311 moves synchronously with the driven plate 311, the space inside the mist discharge cavity 305 is compressed, and a negative pressure is formed inside the gas storage cavity 306. When the driven plate 311 exhausts the colored smoke inside the gas storage bag 309, the push block plate 321 on the guide rod 319 pushes the sealing block two 318 out of the air vent two 323. At this time, the air vent two 323 on the fixed plate 315 is opened, and the push block plate 321 pushes the sealing block two 318 out of the air vent two 323. At the same time, the limiting plate 317 on the sealing block two 318 moves synchronously with the sealing block two 318, and the limiting plate 317 moves to drive the micro telescopic rod 324 to stretch. When the sealing block two 318 is pushed out of the air vent two 323, the micro telescopic rod 324 is stretched to the limit. As the leaked gas pushes the driven plate 313, the sealing block one 316 is separated from the air vent one 322. At this time, the air vent one 322 on the driven plate 313 is opened, and the air inlet cavity 307 is connected with the gas storage cavity 306 in a negative pressure state through the bellows 314. At the moment of connection, under the action of the pressure difference between the gas storage cavity 306 and the air inlet cavity 307, the leaked corrosive gas inside the air inlet cavity 307 is quickly sucked into the gas storage cavity 306, achieving the purpose of storing the leaked gas and avoiding the spread of the leaked corrosive gas to the outside.

[0044] As the leaked gas enters the gas storage cavity 306, the bellows 314 starts to reset under the action of the built-in steel ring, and the bellows 314 drives the sealing block two 318 and the sealing block one 316 to block the fixed plate 315 and the driven plate 313.

[0045] Referring to Figures 9-10The warning light assembly 5 is installed on one end of the upper ring cavity 301 close to the connecting disc 303, and the warning light assembly 5 includes a laser emitter 501 and a laser head 502. The laser emitter 501 is installed on one side of the upper ring cavity 301, and a warning light cover 503 is installed on the other side of the upper ring cavity 301. The laser head 502 is aligned with the warning light cover 503. A light shield 504 is installed on the driven plate 311 and is located between the warning light cover 503 and the laser head 502.

[0046] It should be noted that when the laser emitter 501 is running, the laser emitter 501 emits laser light through the laser head 502. When the laser light irradiates the warning light cover 503, the warning light cover 503 is lit, thereby ensuring that the staff can directly locate the position of the gas leakage through the warning light cover 503 in the night environment.

[0047] The flange plate 2 blocks the laser head 502 with the light shield 504 on the driven plate 311 in the normal state, so that the laser emitted by the laser head 502 cannot reach the warning light cover 503. At this time, the warning light cover 503 is in an extinguished state. When the flange plate 2 leaks gas at the connection, the leaked gas drives the driving plate 313 to move, and the driving plate 313 drives the driven plate 311 to move synchronously through the connecting rod 312. At this time, the light shield 504 on the driven plate 311 is separated from the laser head 502. At this time, the laser head 502 can directly irradiate the warning light cover 503 and light up the warning light cover 503, so that the staff can directly locate the position of the gas leakage through the lit warning light cover 503 when working at night.

[0048] Referring to Figures 1-2 The clamping head 304 is installed on the upper ring cavity 301 and clamped on both sides of the flange plate 2.

[0049] It should be noted that when the upper ring cavity 301 and the lower ring cavity 302 are installed, the clamping head 304 will be clamped on the flange plate 2 first, and the upper ring cavity 301 and the lower ring cavity 302 are positioned at the connection gap of the flange plate 2.

[0050] Referring to Figure 6 The sealing head 308 is installed on the upper ring cavity 301 and is attached to the flange plate 2.

[0051] It should be noted that when the upper ring cavity 301 and the lower ring cavity 302 are installed, the sealing head 308 on the upper ring cavity 301 and the lower ring cavity 302

[0052] Referring to Figures 3-4 The spiral pipe body 1 includes a pipe body 101 and a flange 102. The flange 102 is located between the two flange plates 2, and a sealing ring 4 is also installed between the two flange plates 2. The thickness of the sealing ring 4 is less than the thickness of the flange 102.

[0053] It needs to be explained that the pipe body 101 is provided with the turn-up 102, thereby improving the connection of the flange plate 2 to the spiral pipe body 1, but the flange plate 2 is extruded by the bolt connection, which is easy to cause the excessive extrusion of the flange plate 2 to the turn-up 102 and damage, thereby reducing the sealing of the connection. Therefore, the sealing ring 4 is installed between the flange plates 2, the sealing ring 4 adopts a composite hard material or a graphite material, and the thickness of the sealing ring 4 is less than that of the turn-up 102, so that the flange plate 2 is extruded to the turn-up 102 with a larger thickness first, and then the flange plate 2 is extruded to the sealing ring 4, when the flange plate 2 is excessively extruded to the turn-up 102, the sealing ring 4 converts the excessive extrusion force into the air tightness between the flange plates 2, thereby avoiding the excessive extrusion of the turn-up 102 and improving the sealing strength between the flange plates 2.

[0054] The implementation principle of the present application is that in use, the sealing ring 4 with a thickness less than that of the turn-up 102 is installed on the flange plate 2, the flange plate 2 is extruded to the turn-up 102 with a larger thickness first, and then the flange plate 2 is extruded to the sealing ring 4, when the flange plate 2 is excessively extruded to the turn-up 102, the sealing ring 4 converts the excessive extrusion force into the air tightness between the flange plates 2, thereby avoiding the excessive extrusion of the turn-up 102 and improving the sealing strength between the flange plates 2; then the upper ring cavity 301 and the lower ring cavity 302 are installed on the flange plate 2, the upper ring cavity 301 and the lower ring cavity 302 are locked on the flange plate 2 through the connecting disc 303, in this process, the clamping head 304 is clamped on the flange plate 2 first, and the upper ring cavity 301 and the lower ring cavity 302 are positioned at the connection gap of the flange plate 2, that is, the installation of the gas storage assembly 3 is completed.

[0055] When the gas inside the spiral tube body 1 leaks, the leaked corrosive gas can enter the upper ring cavity 301 and the lower ring cavity 302, avoiding the spread of the leaked corrosive gas to the outside to erode the electrical devices around the flange plate 2. The pressurized corrosive gas inside the upper ring cavity 301 will first push the driven plate 313 inside the air inlet cavity 307 to move, causing the driven plate 313 to compress the bellows 314 between the driven plate 313 and the fixed plate 315. At the same time, the sealing block one 316 on the driven plate 313 moves synchronously with the driven plate 313, and the sealing block one 316 moves to drive the guide rod 319 to slide inside the sealing block two 318. At this time, the sealing block one 316 blocks the air vent one 322 on the driven plate 313, and the sealing block two 318 blocks the air vent two 323 on the fixed plate 315. As the driven plate 313 moves and the leaked gas enters the air inlet cavity 307, the driven plate 313 drives the driven plate 311 to move through the connecting rod 312. The driven plate 313 can extrude the gas storage bag 309 inside the mist discharge cavity 305 through the driven plate 311 while moving, causing the colored smoke inside the gas storage bag 309 to be discharged from the constant-pressure nozzle 310. At this time, the staff can directly locate the gas leakage position at the gathering place of the spiral tube body 1 according to the position of the colored smoke, and warn nearby non-workers to evacuate quickly. As the driven plate 311 moves synchronously with the driven plate 311, the space inside the mist discharge cavity 305 is compressed, and a negative pressure is formed inside the gas storage cavity 306. When the driven plate 311 exhausts the colored smoke inside the gas storage bag 309, the push block plate 321 on the guide rod 319 will push the sealing block two 318 out of the air vent two 323. At this time, the air vent two 323 on the fixed plate 315 is opened, and the push block plate 321 pushes the sealing block two 318 out of the air vent two 323. At the same time, the limiting plate 317 on the sealing block two 318 moves synchronously with the sealing block two 318, and the limiting plate 317 moves to drive the micro telescopic rod 324 to stretch. When the sealing block two 318 is pushed out of the air vent two 323, the micro telescopic rod 324 is stretched to the limit. As the leaked gas pushes the driven plate 313, the sealing block one 316 is separated from the air vent one 322. At this time, the air vent one 322 on the driven plate 313 is opened, and the air inlet cavity 307 is connected with the gas storage cavity 306 in a negative pressure state through the bellows 314. At the moment of connection, under the action of the pressure difference between the gas storage cavity 306 and the air inlet cavity 307, the leaked corrosive gas inside the air inlet cavity 307 is quickly sucked into the gas storage cavity 306, achieving the purpose of storing the leaked gas and avoiding the spread of the leaked corrosive gas to the outside;

[0056] Specifically, the flange plate 2 blocks the light shield 504 on the driven plate 311 in the normal state, so that the laser emitted by the laser head 502 cannot reach the warning lamp cover 503, at this time, the warning lamp cover 503 is in an extinguished state; when the flange plate 2 is connected with the leaked gas, the leaked gas pushes the driving plate 313 to move, the driving plate 313 drives the driven plate 311 to move synchronously through the connecting rod 312, at this time, the light shield 504 on the driven plate 311 is separated from the laser head 502, at this time, the laser head 502 can directly irradiate the warning lamp cover 503 and light up the warning lamp cover 503, so that the workers can directly locate the position of the gas leakage through the lighted warning lamp cover 503 when working at night.

[0057] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application.

Claims

1. A spiral type hose having a leakage detecting structure, characterized by: The application relates to a spiral pipe body (1) and flanges (2) mounted at the ends of the spiral pipe body (1), the spiral pipe body (1) is connected through the flanges (2), and a warning gas storage assembly (3) is sleeved on the flanges (2). The warning gas storage assembly (3) comprises upper and lower ring cavities (301) and (302), the upper and lower ring cavities (301) and (302) are connected through a connecting disc (303), the upper and lower ring cavities (301) and (302) are sealingly mounted at connecting gaps between the flanges (2), a fixed plate (315) and a sliding driven plate (311) are fixedly mounted in the upper ring cavity (301), the fixed plate (315) and the driven plate (311) sequentially divide the space in the upper ring cavity (301) into an air inlet cavity (307), a gas storage cavity (306) and a mist discharge cavity (305), the driven plate (311) is connected with a driving plate (313) through a connecting rod (312) penetrating the fixed plate (315), the driving plate (313) is located in the air inlet cavity (307), the driving plate (313) is attached to the flange (2), a gas storage bag (309) is mounted in the mist discharge cavity (305), colored smoke is stored in the gas storage bag (309), and a bellows (314) which can be opened and closed is connected between the driving plate (313) and the fixed plate (315). When gas in the spiral pipe body (1) leaks from the connecting position of the flanges (2), the leaked gas enters the air inlet cavity (307) and pushes the driving plate (313) to move, the driving plate (313) drives the driven plate (311) to synchronously displace through the connecting rod (312), the driven plate (311) compresses the space in the mist discharge cavity (305) and extrudes the gas storage bag (309), the colored smoke in the gas storage bag (309) is extruded and discharged through the driven plate (311), meanwhile, negative pressure is generated in the gas storage cavity (306), when the colored smoke in the gas storage bag (309) is discharged, the bellows (314) connects the air inlet cavity (307) and the gas storage cavity (306), through the pressure difference between the gas storage cavity (306) and the air inlet cavity (307), the leaked gas is rapidly sucked into the gas storage cavity (306) and stored.

2. The spiral type hose having a leakage detection structure according to claim 1, characterized by: A constant-pressure nozzle (310) is mounted on the gas storage bag (309), and the colored smoke in the gas storage bag (309) is discharged through the constant-pressure nozzle (310).

3. The spiral type hose having a leakage detection structure according to claim 1, characterized in that: The fixed plate (315) and the active plate (313) are respectively provided with a second air vent (323) and a first air vent (322), the second air vent (323) and the first air vent (322) are connected through the bellows (314), the second air vent (323) is internally provided with a blocking block two (318), the first air vent (322) is internally provided with a blocking block one (316), the blocking block one (316) is provided with a guide rod (319), the guide rod (319) penetrates the blocking block two (318), one end of the guide rod (319) away from the blocking block one (316) is connected with a pulling block plate (320), and the guide rod (319) is provided with a pushing block plate (321).

4. The spiral type hose having a leakage detection structure according to claim 3, characterized in that: The blocking block two (318) is fixedly provided with a limiting plate (317), the pulling block plate (320) contacts the limiting plate (317), and the limiting plate (317) is connected with the fixed plate (315) through a micro telescopic rod (324) at both ends.

5. The spiral type hose having a leakage detection structure according to claim 1, characterized in that: The upper ring cavity (301) is provided, close to one end of the connecting disc (303), with a warning light assembly (5), the warning light assembly (5) comprises a laser emitter (501) and a laser head (502), one side of the upper ring cavity (301) is provided with the laser emitter (501), the other side of the upper ring cavity (301) is provided with a warning light cover (503), the laser head (502) is aligned with the warning light cover (503), and the driven plate (311) is provided with a light shield plate (504), the light shield plate (504) is located between the warning light cover (503) and the laser head (502).

6. The spiral type hose having a leakage detection structure according to claim 1, characterized in that: The upper ring cavity (301) is provided with a clamping head (304), and the clamping head (304) is clamped on both sides of the flange plate (2).

7. The spiral type hose having a leakage detection structure according to claim 1, characterized in that: The upper ring cavity (301) is provided with a sealing head (308), and the sealing head (308) is attached to the flange plate (2).

8. The spiral type hose having a leakage detection structure according to claim 1, characterized by: The spiral pipe body (1) comprises a pipe body (101) and a flange (102), the flange (102) is located between the flange plates (2), and a sealing ring (4) is further installed between the flange plates (2), the thickness of the sealing ring (4) is less than the thickness of the flange (102).

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