Spiral hose with leakage detection structure

Abstract

The invention belongs to the technical field of hose flange leakage prevention, and particularly relates to a spiral hose with a leakage detection structure. The spiral hose comprises a spiral hose body and a flange plate, and the flange plate is sleeved with a warning gas storage assembly; the warning gas storage assembly comprises an upper annular cavity, a lower annular cavity, a connecting disc, a fixed plate, a driven plate, a gas inlet cavity, a gas storage cavity, a mist discharging cavity, a connecting rod, a driving plate, a gas storage bag and a corrugated pipe. When gas leaks, leaked corrosive gas enters an upper ring cavity, the gas firstly pushes a driving plate in a gas inlet cavity to move, and the driving plate extrudes a gas storage bag in a mist discharging cavity through a driven plate, so that colored smoke in the gas storage bag is discharged; at the moment, the worker can directly locate the gas leakage position at the gathering position of the spiral pipe body according to the position of the colored smoke, and meanwhile, nearby non-workers are warned to evacuate; along with the movement of the driving plate, negative pressure is formed in the gas storage cavity, and leaked gas in the gas inlet cavity is sucked into the gas storage cavity through pressure difference and stored.

Description

Technical Field

[0001] The invention belongs to the technical field of hose flange leakage prevention, and in particular relates to a spiral hose with a leakage detection structure. Background Art

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

[0003] The materials of spiral hoses include PVC, PU (polyurethane), TPU (thermoplastic polyurethane), etc. These materials have good weather resistance, wear resistance and corrosion resistance. Therefore, spiral hoses have good resistance to a variety of chemicals and are suitable for conveying corrosive liquids or gases. Most spiral hoses are connected by flanges. As the spiral hose continues to convey corrosive gas and liquid, the gaskets at the flange connection are easily corroded by the corrosive gas and liquid, resulting in leakage of corrosive gas and liquid. The leaked gas and liquid are not easy to observe. If the location of the gas leak is the convergence point of the hose, it will cause the staff to be unable to locate the gas leak in the first time, which will cause the staff to be unable to control the site in time. The leaked corrosive gas will also damage the electrical components around the flange, causing more serious accidents. Summary of the invention

[0004] The purpose of the present invention is to provide a spiral hose with a leakage detection structure to solve the technical problems in the prior art in view of the shortcomings of the prior art.

[0005] The object of the present invention can be achieved by the following technical scheme: a spiral hose with a leakage detection structure, comprising a spiral hose body and a flange installed at the end thereof, the spiral hose bodies are connected by the flange, and a warning gas storage component is sleeved on the flange;

[0006] The warning air storage component includes an upper ring cavity and a lower ring cavity, the upper ring cavity and the lower ring cavity are connected by a connecting plate, the upper ring cavity and the lower ring cavity are sealed and installed at the connecting gap between the flange plates, a fixed plate and a slidably installed driven plate are respectively fixedly installed inside the upper ring cavity, the fixed plate and the driven plate divide the internal space of the upper ring cavity into an air intake cavity, an air storage cavity and a mist exhaust cavity in sequence, the driven plate is connected to the active plate through a connecting rod penetrating the fixed plate, and the active plate is located inside the air intake cavity, the active plate is attached to the flange plate, an air storage bag is installed inside the mist exhaust cavity, and colored smoke is stored inside the air storage bag, and an openable and closable bellows is connected between the active 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 active plate to move. The active plate drives the driven plate to move synchronously through the connecting rod, so that the driven plate compresses the internal space of the demisting cavity and squeezes the air storage bag. The colored smoke inside the air storage bag is squeezed out through the driven plate. At the same time, negative pressure is generated inside the air storage cavity. When the colored smoke inside the air storage bag is exhausted, the bellows connects the air inlet cavity and the air storage cavity. Through the pressure difference between the air storage cavity and the air inlet cavity, the leaked gas is quickly sucked into the air storage cavity and stored.

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

[0009] Preferably, vent 2 and vent 1 are respectively provided on the fixed plate and the active plate, vent 2 and vent 1 are connected by a bellows, sealing block 2 is installed inside vent 2, sealing block 1 is installed inside vent 1, a guide rod is installed on sealing block 1, the guide rod passes through sealing block 2, the end of the guide rod away from sealing block 1 is connected to the pulling block plate, and the pushing block plate is installed on the guide rod.

[0010] Preferably, a limiting plate is fixedly mounted on the second blocking block, the pulling block plate contacts the limiting plate, and both ends of the limiting plate are connected to the fixed plate via micro telescopic rods.

[0011] Preferably, a warning light assembly is installed on one end of the upper ring cavity near the connecting disk, and the warning light assembly includes a laser emitter and a laser head. The laser emitter is installed on one side of the upper ring cavity, and 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 shading plate is installed on the driven plate, and the shading plate is located between the warning light cover and the laser head.

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

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

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

[0015] Beneficial effects of the present invention:

[0016] (1) When the gas inside the spiral tube body leaks, the leaked corrosive gas can enter the upper ring cavity and the lower ring cavity, preventing the leaked corrosive gas from spreading to the outside and corroding the electrical components around the flange. The pressurized corrosive gas entering the upper ring cavity will first push the active plate inside the air intake cavity to move, allowing the leaked gas to enter the air intake cavity. The active plate drives the driven plate to move through the connecting rod. While moving, the active plate can squeeze the air storage bag inside the mist exhaust cavity through the driven plate, so that the colored smoke inside the air storage bag is discharged from the constant pressure nozzle. At this time, the staff can directly locate the gas leakage position at the convergence point of the spiral tube body according to the position of the colored smoke, and warn nearby non-staff to evacuate quickly;

[0017] In addition, as the active plate drives the driven plate to move synchronously, the internal space of the demisting chamber is compressed and a negative pressure is formed inside the air storage chamber. When the driven plate exhausts the colored smoke inside the air storage bag, the bellows opens, and the leaked gas inside the air intake chamber is sucked into the air storage chamber through the pressure difference and stored. After the warning air storage assembly is disassembled, the corrosive gas stored in the air storage chamber is handled separately, effectively preventing the corrosive gas from leaking to the outside and polluting the air.

[0018] (2) When the flange of the present invention is in a normal state, the shading plate on the driven plate blocks the laser head, so that the laser emitted by the laser head cannot reach the warning lamp cover. At this time, the warning lamp cover is in an off state; when gas leaks at the flange connection, the leaking gas pushes the active plate to move, and the active plate drives the driven plate to move synchronously through the connecting rod. At this time, the shading plate on the driven plate is separated from the shielding of the laser head. At this time, the laser head can directly shine on the warning lamp cover and light up the warning lamp cover, so that the staff can directly locate the position of the gas leakage through the lit warning lamp cover when working at night.

[0019] (3) The present invention installs a sealing ring between flanges, and the thickness of the sealing ring is smaller than the flange. When the flanges are connected by bolts, the flanges will first squeeze the flange with a larger thickness, and then the flanges will squeeze the sealing ring. When the flanges squeeze the flanges excessively, the sealing ring converts the excessive squeezing force into the airtight strength between the flanges, thereby avoiding excessive squeezing of the flanges and improving the sealing strength between the flanges. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

[0024] Figure 4 for Figure 3 Schematic diagram of the structure of part A.

[0025] Figure 5 This is a schematic diagram of the connection structure between the flange and the warning gas storage component.

[0026] Figure 6 for Figure 5 Schematic diagram of the structure of part B.

[0027] Figure 7 This is a cross-sectional view of the internal structure of the upper ring cavity.

[0028] Figure 8 for Figure 7 Schematic diagram of the C-site structure.

[0029] Fig. 9 This is a schematic diagram of the warning light assembly structure.

[0030] Fig.10 for Fig. 9 Schematic diagram of the D part structure.

[0031] The following are marked in the figure: 1. spiral tube body; 101. tube body; 102. flange; 2. flange; 3. warning gas storage assembly; 301. upper ring cavity; 302. lower ring cavity; 303. connecting plate; 304. clamping head; 305. mist exhaust cavity; 306. gas storage cavity; 307. air inlet cavity; 308. sealing head; 309. gas storage bag; 310. constant pressure nozzle; 311. driven plate; 312. connecting rod; 313. main Moving plate; 314, bellows; 315, fixed plate; 316, blocking block one; 317, limit plate; 318, blocking block two; 319, guide rod; 320, pull block plate; 321, push block plate; 322, vent one; 323, vent two; 324, mini telescopic rod; 4, sealing ring; 5, warning light assembly; 501, laser transmitter; 502, laser head; 503, warning light cover; 504, shading plate. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-Figure 8 A spiral hose with a leakage detection structure includes a spiral tube body 1 and a flange 2 installed at the end thereof. The spiral tube bodies 1 are connected by the flange 2, and a warning gas storage component 3 is sleeved on the flange 2.

[0034] The warning gas storage component 3 includes 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 plate 303. The upper ring cavity 301 and the lower ring cavity 302 are sealed and installed at the connecting gap between the flange plates 2. A fixed plate 315 and a slidably installed driven plate 311 are respectively fixedly installed inside the upper ring cavity 301. The fixed plate 315 and the driven plate 311 divide the internal space of the upper ring cavity 301 into an air intake cavity 307, an air storage cavity 306 and a mist exhaust cavity 305 in sequence. The driven plate 311 penetrates the fixed plate 315 through a connecting rod 312 and is connected to the active plate 313. The active plate 313 is located inside the air intake cavity 307. The active plate 313 is attached to the flange plate 2. An air storage bag 309 is installed inside the mist exhaust cavity 305. Colored smoke is stored in the air storage bag 309. An openable and closable bellows 314 is connected between the active plate 313 and the fixed plate 315.

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

[0036] Specifically, a constant pressure nozzle 310 is installed on the air storage bag 309 , and the colored smoke inside the air 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 respectively located in the upper and lower halves of the flange 2. The upper ring cavity 301 and the lower ring cavity 302 are sealed and installed in the connecting gap between the flanges 2 through the connecting plate 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, so as to prevent the leaked corrosive gas from spreading to the outside and corroding the electrical components around the flange 2. The pressurized corrosive gas entering the upper ring cavity 301 will first push the active plate 313 inside the air inlet cavity 307 to move, so that the leaked gas enters the air inlet cavity 307. The active plate 313 drives the driven plate 311 to move through the connecting rod 312. While moving, the active plate 313 can squeeze the air storage bag 309 inside the demisting cavity 305 through the driven plate 311, so that the air storage bag The colored smoke inside 309 is discharged from the constant pressure nozzle 310. At this time, the staff can directly locate the position of the gas leakage at the convergence point of the spiral tube body 1 according to the position of the colored smoke, and warn non-staff nearby to evacuate quickly. As the active plate 313 drives the driven plate 311 to move synchronously, the internal space of the mist exhaust chamber 305 is compressed, and at the same time, a negative pressure is formed inside the air storage chamber 306. When the driven plate 311 exhausts the colored smoke inside the air storage bag 309, the bellows 314 opens, and the leaked gas inside the air inlet chamber 307 is sucked into the air storage chamber 306 through the pressure difference and stored.

[0039] After the staff took control of the scene, they removed the warning gas storage component 3 and separately treated the corrosive gas stored in the gas storage cavity 306. After the gas inside the gas storage cavity 306 was cleaned, colored smoke was filled into the gas storage bag 309 through the constant pressure nozzle 310. Finally, the warning gas storage component 3 was calibrated and put into normal use.

[0040] See also Figure 6-Figure 8 The fixed plate 315 and the active plate 313 are respectively provided with a vent 2 323 and a vent 1 322, the vent 2 323 and the vent 1 322 are connected by a bellows 314, a blocking block 2 318 is installed inside the vent 2 323, a blocking block 1 316 is installed inside the vent 1 322, a guide rod 319 is installed on the blocking block 1 316, the guide rod 319 passes through the blocking block 2 318, the end of the guide rod 319 away from the blocking block 1 316 is connected to the pulling block plate 320, and a pushing block plate 321 is installed on the guide rod 319.

[0041] Specifically, a limiting plate 317 is fixedly installed on the second blocking block 318 , the pulling plate 320 contacts the limiting plate 317 , and both ends of the limiting plate 317 are connected to the fixed plate 315 via miniature telescopic rods 324 .

[0042] It should be noted that the steel ring built into the bellows 314 can achieve restoration after compression, and the recovery efficiency of the bellows 314 can be improved by adding a spring between the active 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, preventing the leaked corrosive gas from spreading to the outside and corroding the electrical components around the flange 2. The pressurized corrosive gas entering the upper ring cavity 301 will first push the active plate 313 inside the air inlet cavity 307 to move, so that the active plate 313 compresses the bellows 314 between the active plate 313 and the fixed plate 315. At the same time, the blocking block 1 316 on the active plate 313 moves synchronously with the active plate 313. The movement of the blocking block 1 316 drives the guide rod 319 to slide inside the blocking block 2 318. At this time, the blocking block 1 316 The vent 1 322 on the active plate 313 is blocked, and the blocking block 2 318 blocks the vent 2 323 on the fixed plate 315. As the active plate 313 moves, the leaking gas enters the air intake chamber 307. The active plate 313 drives the driven plate 311 to move through the connecting rod 312. While moving, the active plate 313 can squeeze the air storage bag 309 inside the mist exhaust chamber 305 through the driven plate 311, so that the colored smoke inside the air storage bag 309 is discharged from the constant pressure nozzle 310. At this time, the staff can directly locate the gas leakage position at the convergence point of the spiral tube body 1 according to the position of the colored smoke, and warn nearby non-working people at the same time. The staff evacuated quickly. As the active plate 313 drives the driven plate 311 to move synchronously, the internal space of the mist exhaust chamber 305 is compressed, and negative pressure is formed in the air storage chamber 306. When the driven plate 311 exhausts the colored smoke in the air storage bag 309, the push plate 321 on the guide rod 319 pushes the blocking block 318 out of the vent 323. At this time, the vent 323 on the fixed plate 315 is opened. When the push plate 321 pushes the blocking block 318 out of the vent 323, the limit plate 317 on the blocking block 318 moves synchronously with the blocking block 318. The movement of the limit plate 317 drives the micro telescopic rod 32 4 stretching, when the blocking block 2 318 is pushed out of the vent 2 323, the micro telescopic rod 324 is stretched to the limit, and as the leaking gas pushes the active plate 313, the blocking block 1 316 is separated from the vent 1 322. At this time, the vent 1 322 on the active plate 313 is opened, and the air inlet cavity 307 is connected with the negative pressure air storage cavity 306 through the bellows 314. At the moment of connection, under the action of the pressure difference between the air storage cavity 306 and the air inlet cavity 307, the corrosive gas leaked from the air inlet cavity 307 is quickly sucked into the air storage cavity 306, so as to achieve the purpose of storing the leaked gas and prevent the leaked corrosive gas from spreading to the outside.

[0044] As the leaked gas enters the gas storage cavity 306 , the bellows 314 begins to reset under the action of the built-in steel ring, and the bellows 314 drives the blocking block 2 318 and the blocking block 1 316 to block the fixed plate 315 and the active plate 313 .

[0045] See also Figure 9-10A warning light assembly 5 is installed on one end of the upper ring cavity 301 close to the connecting disk 303. 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 shading plate 504 is installed on the driven plate 311, and the shading plate 504 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 in operation, the laser emitter 501 emits laser through the laser head 502. When the laser irradiates the warning lamp cover 503, the warning lamp cover 503 is lit, thereby ensuring that the staff can directly locate the position of the gas leak through the warning lamp cover 503 in a night environment.

[0047] When the flange 2 is in the normal state, the shading plate 504 on the driven plate 311 blocks the laser head 502, 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 gas leaks at the connection of the flange 2, the leaking gas pushes the active plate 313 to move, and the active plate 313 drives the driven plate 311 to move synchronously through the connecting rod 312. At this time, the shading plate 504 on the driven plate 311 is separated from the shielding of the laser head 502. At this time, the laser head 502 can directly shine on the warning lamp cover 503 and light up the warning lamp cover 503, so that the staff can directly locate the position of the gas leakage through the lit warning lamp cover 503 when working at night.

[0048] See also Figure 1-Figure 2 A clamp 304 is installed on the upper ring cavity 301 , and the clamp 304 is clamped on both sides of the flange 2 .

[0049] It should be noted that when installing the upper annular cavity 301 and the lower annular cavity 302 , the clamping head 304 will first be clamped on the flange 2 to position the upper annular cavity 301 and the lower annular cavity 302 at the connection gap of the flange 2 .

[0050] See also Figure 6 A sealing head 308 is installed on the upper ring cavity 301 , and the sealing head 308 is attached to the flange 2 .

[0051] It should be noted that when installing the upper annular cavity 301 and the lower annular cavity 302, the upper annular cavity 301 and the lower annular cavity 302 are connected by the sealing head 308 thereon.

[0052] See also Figure 3-Figure 4 The spiral tube body 1 includes a tube body 101 and a flange 102 . The flange 102 is located between two flanges 2 . A sealing ring 4 is also installed between the two flanges 2 . The thickness of the sealing ring 4 is less than that of the flange 102 .

[0053] It should be noted that the tube body 101 is provided with a flange 102, thereby improving the connectivity of the flange 2 to the spiral tube body 1, but the flange 2 will squeeze the flange 102 when connected by bolts, which may easily cause the flange 2 to over-exert and damage the flange 102, resulting in reduced sealing at the connection. Therefore, the present invention installs a sealing ring 4 between the flanges 2, and the sealing ring 4 is made of a composite hard material or a graphite material, and the thickness of the sealing ring 4 is less than the flange 102. When the flange 2 is connected by bolts, the flange 2 will first squeeze the flange 102 with a larger thickness, and then the flange 2 will squeeze the sealing ring 4. When the flange 2 over-exerts the flange 102, the sealing ring 4 converts the excessive extrusion force into the airtight strength between the flanges 2, thereby avoiding excessive extrusion of the flange 102 and improving the sealing strength between the flanges 2.

[0054] The implementation principle of the present invention is as follows: when in use, a sealing ring 4 with a thickness smaller than the flange 102 is installed on the flange 2. When the flange 2 is connected by bolts, the flange 2 will first squeeze the flange 102 with a larger thickness, and then the flange 2 will squeeze the sealing ring 4. When the flange 2 over-extrudes the flange 102, the sealing ring 4 converts the excessive extrusion force into the airtight strength between the flanges 2, thereby avoiding excessive extrusion of the flange 102 and improving the sealing strength between the flanges 2; then the upper ring cavity 301 and the lower ring cavity 302 are installed on the flange 2, and the upper ring cavity 301 and the lower ring cavity 302 are locked on the flange 2 through the connecting plate 303. During this process, the clamping head 304 will first be clamped on the flange 2, and the upper ring cavity 301 and the lower ring cavity 302 will be positioned at the connecting gap of the flange 2, thus warning that the installation of the air storage component 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, preventing the leaked corrosive gas from diffusing to the outside and corroding the electrical components around the flange 2. The pressurized corrosive gas entering the upper ring cavity 301 will first push the active plate 313 inside the air inlet cavity 307 to move, so that the active plate 313 compresses the bellows 314 between the active plate 313 and the fixed plate 315. At the same time, the blocking block 1 316 on the active plate 313 moves synchronously with the active plate 313. The movement of the blocking block 1 316 drives the guide rod 319 to slide inside the blocking block 2 318. At this time, the blocking block 1 316 The vent 1 322 on the active plate 313 is blocked, and the blocking block 2 318 blocks the vent 2 323 on the fixed plate 315. As the active plate 313 moves, the leaking gas enters the air intake chamber 307. The active plate 313 drives the driven plate 311 to move through the connecting rod 312. While moving, the active plate 313 can squeeze the air storage bag 309 inside the mist exhaust chamber 305 through the driven plate 311, so that the colored smoke inside the air storage bag 309 is discharged from the constant pressure nozzle 310. At this time, the staff can directly locate the gas leakage position at the convergence point of the spiral tube body 1 according to the position of the colored smoke, and warn nearby non-working people at the same time. The staff evacuated quickly. As the active plate 313 drives the driven plate 311 to move synchronously, the internal space of the mist exhaust chamber 305 is compressed, and negative pressure is formed in the air storage chamber 306. When the driven plate 311 exhausts the colored smoke in the air storage bag 309, the push plate 321 on the guide rod 319 pushes the blocking block 318 out of the vent 323. At this time, the vent 323 on the fixed plate 315 is opened. When the push plate 321 pushes the blocking block 318 out of the vent 323, the limit plate 317 on the blocking block 318 moves synchronously with the blocking block 318. The movement of the limit plate 317 drives the micro telescopic rod 32 4. Stretching. When the blocking block 318 is pushed out of the vent 323, the micro telescopic rod 324 is stretched to the limit. As the leaking gas pushes the active plate 313, the blocking block 316 is separated from the vent 322. At this time, the vent 322 on the active plate 313 is opened, and the air inlet cavity 307 is connected with the negative pressure air storage cavity 306 through the bellows 314. At the moment of connection, under the action of the pressure difference between the air storage cavity 306 and the air inlet cavity 307, the corrosive gas leaked from the air inlet cavity 307 is quickly sucked into the air storage cavity 306, so as to achieve the purpose of storing the leaked gas and prevent the leaked corrosive gas from spreading to the outside.

[0056] Specifically, when the flange 2 is in a normal state, the shading plate 504 on the driven plate 311 blocks the laser head 502, 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 gas leaks at the connection of the flange 2, the leaking gas pushes the active plate 313 to move, and the active plate 313 drives the driven plate 311 to move synchronously through the connecting rod 312. At this time, the shading plate 504 on the driven plate 311 is separated from the shielding of the laser head 502. At this time, the laser head 502 can directly shine on the warning lamp cover 503 and light up the warning lamp cover 503, so that the staff can directly locate the position of the gas leakage through the lit warning lamp cover 503 when working at night.

[0057] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A spiral hose with a leak detection structure, characterized in that: It comprises a spiral tube body (1) and a flange (2) installed at the end thereof, wherein the spiral tube bodies (1) are connected via the flange (2), and a warning gas storage component (3) is sleeved on the flange (2); The warning gas storage assembly (3) comprises an upper annular cavity (301) and a lower annular cavity (302), wherein the upper annular cavity (301) and the lower annular cavity (302) are connected via a connecting plate (303), and the upper annular cavity (301) and the lower annular cavity (302) are sealed and installed at the connecting gap between the flange plates (2), and a fixed plate (315) and a driven plate (311) are fixedly installed inside the upper annular cavity (301), and the fixed plate (315) and the driven plate (311) are slidably installed, and the internal space of the upper annular cavity (301) is divided into an air inlet cavity (307) in sequence by the fixed plate (315) and the driven plate (311). , an air storage chamber (306) and a mist exhaust chamber (305), the driven plate (311) penetrates the fixed plate (315) and is connected to the active plate (313) through a connecting rod (312), and the active plate (313) is located inside the air inlet chamber (307), the active plate (313) is attached to the flange (2), an air storage bag (309) is installed inside the mist exhaust chamber (305), and colored smoke is stored inside the air storage bag (309), and an openable and closable bellows (314) is connected between the active plate (313) and the fixed plate (315); When the gas inside the spiral tube body (1) leaks from the connection of the flange (2), the leaked gas enters the air inlet chamber (307) and pushes the active plate (313) to move. The active plate (313) drives the driven plate (311) to move synchronously through the connecting rod (312), so that the driven plate (311) compresses the internal space of the mist exhaust chamber (305) and squeezes the air storage bag (309). The colored smoke inside the air storage bag (309) is squeezed out through the driven plate (311), and negative pressure is generated inside the air storage chamber (306). When the colored smoke inside the air storage bag (309) is exhausted, the bellows (314) connects the air inlet chamber (307) and the air storage chamber (306). Through the pressure difference between the air storage chamber (306) and the air inlet chamber (307), the leaked gas is quickly sucked into the air storage chamber (306) and stored.

2. The spiral hose with a leakage detection structure according to claim 1, characterized in that: A constant pressure nozzle (310) is installed on the air storage bag (309), and the colored smoke inside the air storage bag (309) is discharged through the constant pressure nozzle (310).

3. The spiral hose with a leakage detection structure according to claim 1, characterized in that: The fixed plate (315) and the active plate (313) are provided with a second vent (323) and a first vent (322) respectively. The second vent (323) and the first vent (322) are connected via the bellows (314). A second blocking block (318) is installed inside the second vent (323). A first blocking block (316) is installed inside the first vent (322). A guide rod (319) is installed on the first blocking block (316). The guide rod (319) passes through the second blocking block (318). One end of the guide rod (319) away from the first blocking block (316) is connected to the pull block plate (320). A push block plate (321) is installed on the guide rod (319).

4. The spiral hose with a leakage detection structure according to claim 3, characterized in that: A limiting plate (317) is fixedly mounted on the second blocking block (318), the pulling block plate (320) contacts the limiting plate (317), and both ends of the limiting plate (317) are connected to the fixed plate (315) via miniature telescopic rods (324).

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

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

7. The spiral hose with a leakage detection structure according to claim 1, characterized in that: A sealing head (308) is installed on the upper annular cavity (301), and the sealing head (308) is attached to the flange (2).

8. The spiral hose with a leakage detection structure according to claim 1, characterized in that: The spiral tube body (1) comprises a tube body (101) and a flange (102), wherein the flange (102) is located between the flanges (2), and a sealing ring (4) is also installed between the flanges (2), wherein the thickness of the sealing ring (4) is smaller than the thickness of the flange (102).

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