Leakage-proof detection device and method for metal hose

Abstract

The invention relates to the technical field of leakage-proof detection of metal hoses, and particularly discloses a leakage-proof detection device and method for a metal hose. And a clamping assembly. A plurality of metal hoses are straightened and then placed between the two guide plates, the metal hoses smoothly enter the position between the two side plates through guiding of the two sets of guide rollers, the metal hoses move downwards under the action of the gravity of the metal hoses, and when the metal hoses move downwards to the clamping assembly, the ends of the metal hoses are clamped by the first clamping piece and the second clamping piece which are adjacent. The first clamping piece and the second clamping piece drive the metal hose to continue to move downwards, when the end of the metal hose moves to the detection equipment, the detection equipment extends to abut against the end of the metal hose to conduct leakage-proof detection on the metal hose, after detection is completed, the first clamping piece and the second clamping piece drive the metal hose to continue to move downwards and fall off from the through hole, and discharging is completed. Automatic feeding and discharging are achieved in the whole detection process, detection is continuous, and therefore detection efficiency and safety during detection are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of metal hose leakage prevention detection, and in particular to a metal hose leakage prevention detection device and method. Background Art

[0002] Metal hoses are widely used in various applications requiring flexible connections, vibration / displacement absorption, and resistance to high temperatures, high pressures, or corrosive media. After production, metal hoses undergo multiple tests, including air tightness and leak testing. Leak testing is crucial for ensuring the safe and reliable operation of metal hoses, especially in systems conveying hazardous, flammable, high-pressure, or valuable media.

[0003] At present, air tightness testing machines are generally used for testing. The testing machine has an air source system and a plug. Both the air source system and the plug are moved by a cylinder. During the test, the two ends of the metal hose are placed on two positioning racks, and then the plug is blocked at one end of the metal hose. The air source system is connected to the other end of the metal hose. The test medium (such as dry and clean air or nitrogen) is filled into the metal hose. After pressurizing it to the specified test pressure, the air source valve is closed to keep the hose in a pressure-maintaining state. The initial pressure at the beginning of the pressure maintenance and the pressure at the end of the pressure maintenance are monitored and recorded. By checking whether the end pressure value drops and whether it is within the allowable range, a significant pressure drop indicates a leak. In actual testing, workers are required to clamp the two ends of the metal hose on the two positioning racks respectively. After the test is completed, a worker will remove the metal hose and install a new one. This testing process is relatively cumbersome and reduces the detection efficiency. Moreover, if the air source system fails, the worker may be injured by the high-pressure gas when installing the metal hose, reducing the safety of the test. Summary of the Invention

[0004] The purpose of the present invention is to address the deficiencies of the prior art and provide a leak detection device and method for a metal hose, so as to solve the technical problem that manual loading and unloading is required during the current detection, resulting in reduced detection efficiency.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A leak detection device for a metal hose, comprising a table and a detection device, the device further comprising:

[0007] Side panels, two side panels are provided on the table top, the two side panels are arranged side by side, the metal hose passes between the two side panels from top to bottom, and a through hole is opened on the table top, and the through hole is located between the two side panels;

[0008] A clamping assembly is installed on both sides of the two side panels, and the clamping assembly includes two groups of conveyor belts. The two groups of conveyor belts are connected to the driving members and the rollers. The two groups of conveyor belts rotate toward each other. A number of clamping members 1 and a number of clamping members 2 are evenly arranged on the periphery of the two groups of conveyor belts. The adjacent clamping members 1 and 2 clamp the end of the metal hose. When the end of the metal hose moves to the detection equipment, the two groups of conveyor belts stop moving, and the detection equipment performs a leak detection on the metal hose.

[0009] As a preferred embodiment of the above technical solution, the structures of the clamping member 1 and the clamping member 2 are the same. When the clamping member 1 and the clamping member 2 clamp the metal hose, the clamping member 1 and the clamping member 2 are symmetrical along the center line of the axis of the metal hose. When the clamping member 1 and the clamping member 2 are located between two groups of conveyor belts, the clamping member 1 and the clamping member 2 are in an up and down staggered state. The clamping member 1 and the clamping member 2 both include a connecting plate, which is fixed on the outer surface of the conveyor belt. A splint is slidably installed on the other side of the connecting plate. A telescopic member is installed on the connecting plate, and the output end of the telescopic member is connected to the splint.

[0010] As a preferred embodiment of the above technical solution, clamping plates are provided on the edge positions of the opposite sides of the two side panels except for the top and bottom, and the end of the metal hose is clamped between the two opposite sets of clamping plates on the two side panels, and the inner wall of the end flange of the metal hose is against the side surface of the side panel.

[0011] As a preferred embodiment of the above technical solution, a correction component is installed on the splint, and the correction component includes a movable plate, which is slidably installed on the splint, and a tooth plate 1 is provided at one end of the movable plate, a gear is rotatably installed in the splint, and a tooth plate 2 is fixed on the connecting plate, and the tooth plate 1 and the tooth plate 2 are perpendicular to each other, and the tooth plate 1 and the tooth plate 2 are engaged with the gear.

[0012] As a preferred embodiment of the above technical solution, the side surface of the upper half of the side panel is set to be tilted upward, the top of the side panel is provided with a guide plate tilted outward, and the top of the side panel is also provided with a guide roller, which is connected to an external drive source.

[0013] As a preferred embodiment of the above technical solution, a mounting hole is provided on the side panel, and an intermittent roller is rotatably installed in the mounting hole. The intermittent roller is located between the guide roller and the clamping assembly. The intermittent roller is connected to an external driving source and rotates intermittently. A plurality of grooves are provided on the surface of the intermittent roller. When the grooves on two groups of the intermittent rollers are opposite to each other, the metal hose is stuck between the two grooves.

[0014] As a preferred embodiment of the above technical solution, a set of blowing parts is installed between the two side panels, and the blowing parts are connected to the external air source system. When the metal hose is stuck in the two grooves, the flange at one end of the metal hose is located at the blowing part.

[0015] A method for detecting a leak detection device for a metal hose, the method being applied to the leak detection device for a metal hose as described above, the method comprising the following steps:

[0016] Step S1: First, several metal hoses are placed between two guide plates. Then, the guide rollers and intermittent rollers are rotated intermittently. The metal hoses are guided downward by the guide rollers. The intermittent rollers cooperate with the clamping plates to straighten the bent metal hoses.

[0017] Step S2: The metal hose moves down to the clamping assembly and is clamped by the first clamping member and the second clamping member, and is driven by the first clamping member and the second clamping member to move to the detection equipment;

[0018] Step S3: The detection equipment performs a leak detection on the metal hose. If the end pressure value after pressure holding decreases, the metal hose is unqualified. If the end pressure value after pressure holding does not change, the metal hose is qualified.

[0019] The beneficial effects of the present invention are:

[0020] 1. In the present invention, a plurality of metal hoses are straightened and placed between two guide plates. The metal hoses are guided by two sets of guide rollers so as to smoothly enter between the two side plates. The flanges at both ends of the metal hoses are outside the two side plates. The metal hoses move downward under the action of their own gravity. When the metal hoses move downward to the clamping assembly, the adjacent clamping members 1 and 2 clamp the ends of the metal hoses. The clamping members 1 and 2 drive the metal hoses to continue to move downward. When the ends of the metal hoses move to the detection equipment, the two sets of conveyor belts stop moving. The detection equipment is extended to abut against the ends of the metal hoses to perform a leak detection on the metal hoses. After the detection, the clamping members 1 and 2 drive the metal hoses to continue to move downward and drop from the through-hole, completing the unloading. The entire detection process realizes automatic loading and unloading, and the detection is continuous, which improves the detection efficiency and safety during the detection.

[0021] 2. In the present invention, when the two clamping plates move toward each other, since the position of the tooth plate 2 is fixed, the gear rotates, thereby causing the tooth plate 1 to drive the movable plate to move, and the movable plates on the two clamping plates move in opposite directions. In this way, the two movable plates apply forces in opposite directions to the flange through the side edges of the flange, causing the flange to rotate slowly. In this way, the two opposite side surfaces of the flange will respectively abut against the two clamping plates, so that the flange is in a stably clamped state, effectively preventing the flange from rotating during the detection process, thereby avoiding leakage and affecting the detection results;

[0022] 3. In the present invention, when the metal hose enters between the two grooves, the two grooves straighten the bent metal hose, and the two side plates slowly straighten the metal hose when the metal hose moves downward, so that the metal hose is in a straightened state after being clamped. This effectively prevents the metal hose from being bent during detection, effectively preventing the original leakage point from being blocked due to the bending deformation of the hose, thereby further improving the detection accuracy;

[0023] 4. In the present invention, when the metal hose is stuck in the two grooves, one end of the metal hose is located at the blowing piece, and air is blown into the metal hose through the blowing piece, while the other end of the metal hose is not blocked. In this way, dust and impurities in the metal hose are cleaned out, effectively avoiding dust and impurities remaining inside the metal hose when it is tested, thereby ensuring that the test results are relatively accurate and further improving the test accuracy; and when the blowing piece blows air into the metal hose, the metal hose is already in a completely straightened state, thereby avoiding dust and impurities from being clamped in the corrugated gap in the tube, thereby enhancing the cleaning effect and further improving the test accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a partial structural diagram of the present invention;

[0026] Figure 3 This is a structural diagram when the metal hose is located between the two side plates;

[0027] Figure 4 Schematic diagram of the side panel structure;

[0028] Figure 5 Schematic diagram of the clamping assembly structure;

[0029] Figure 6 This is a schematic diagram of the correction component structure;

[0030] Figure 7 Schematic diagram of the intermittent roller and guide roller structure.

[0031] In the picture:

[0032] 1. Table; 2. Side panel; 21. Card plate; 3. Guide plate; 4. Clamping assembly; 41. Conveyor belt; 42. Clamping part 1; 43. Clamping part 2; 44. Connecting plate; 45. Clamping plate; 46. Telescopic part; 47. Driving part; 48. Roller; 5. Detection equipment; 6. Intermittent roller; 61. Groove; 7. Guide roller; 8. Blowing part; 9. Correction assembly; 91. Movable plate; 911. Tooth plate 1; 92. Gear; 93. Tooth plate 2. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making any creative efforts shall fall within the scope of protection of the present invention.

[0034] like Figures 1-6 As shown, a leak detection device for a metal hose includes a table 1 and a detection device 5, and the device also includes:

[0035] Side panels 2, two side panels 2 are provided on the table top 1, the two side panels 2 are arranged side by side, the metal hose passes between the two side panels 2 from top to bottom, and a through hole is opened on the table top 1, and the through hole is located between the two side panels 2;

[0036] The clamping assembly 4 is installed on both sides of the two side panels 2. The clamping assembly 4 includes two groups of conveyor belts 41. The two groups of conveyor belts 41 are connected to the driving member 47 and the roller 48. The two groups of conveyor belts 41 rotate toward each other. A number of clamping members 1 42 and a number of clamping members 2 43 are evenly arranged on the periphery of the two groups of conveyor belts 41. The adjacent clamping members 1 42 and clamping members 2 43 clamp the end of the metal hose. When the end of the metal hose moves to the detection device 5, the two groups of conveyor belts 41 stop moving, and the detection device 5 performs a leak detection on the metal hose.

[0037] Furthermore, clamping plates 21 are provided on the edge positions of the opposite sides of the two side panels 2 except for the top and bottom positions. The end of the metal hose is clamped between the two opposite sets of clamping plates 21 on the two side panels 2, and the inner wall of the end flange of the metal hose is against the side surface of the side panel 2.

[0038] Furthermore, the side surface of the upper half of the side panel 2 is set to be tilted upward, and the top of the side panel 2 is provided with a guide plate 3 tilted outward. The top of the side panel 2 is also provided with a guide roller 7, which is connected to an external drive source.

[0039] In actual application of this embodiment, a number of metal hoses are straightened and placed between the two guide plates 3. After being guided by two sets of guide rollers 7, the metal hoses are smoothly inserted between the two side plates 2. The flanges at both ends of the metal hoses are outside the two side plates 2. The metal hoses move downward under the action of their own gravity. When the metal hoses move downward to the clamping assembly 4, the adjacent clamping pieces 1 42 and 2 43 clamp the ends of the metal hoses. The clamping pieces 1 42 and 2 43 drive the metal hoses to continue to move downward. When the ends of the metal hoses move to the detection device 5, the two sets of conveyors are connected. The belt 41 stops moving, and the detection device 5 extends and contacts the end of the metal hose to perform a leak detection on the metal hose. After the detection, the clamping piece 42 and the clamping piece 43 drive the metal hose to continue to move down and fall from the through hole, completing the unloading. The entire detection process realizes automatic loading and unloading, and the detection is continuous, which improves the detection efficiency and safety during the detection. On the basis of the above scheme, a conveyor belt can be installed at the two guide plates 3, and the conveyor belt transports the metal hose to the two guide plates 3, further realizing the automation of the detection process, thereby further improving the detection efficiency.

[0040] Furthermore, the structures of clamping member 1 42 and clamping member 2 43 are the same. When clamping member 1 42 and clamping member 2 43 clamp the metal hose, clamping member 1 42 and clamping member 2 43 are symmetrical along the center line of the axis of the metal hose. When clamping member 1 42 and clamping member 2 43 are located between two groups of conveyor belts 41, clamping member 1 42 and clamping member 2 43 are in an up and down staggered state. Clamping member 1 42 and clamping member 2 43 both include a connecting plate 44, which is fixed to the outer surface of the conveyor belt 41, and a splint 45 is slidably installed on the other side of the connecting plate 44, and a telescopic member 46 is installed on the connecting plate 44, and the output end of the telescopic member 46 is connected to the splint 45.

[0041] Furthermore, a correction assembly 9 is installed on the splint 45, and the correction assembly 9 includes a movable plate 91, which is slidably installed on the splint 45. A tooth plate 911 is provided at one end of the movable plate 91, and a gear 92 is rotatably installed in the splint 45. A tooth plate 2 93 is fixed on the connecting plate 44, and the tooth plate 1 911 and the tooth plate 2 93 are perpendicular to each other. The tooth plate 1 911 and the tooth plate 2 93 are engaged with the gear 92.

[0042] In actual application of this embodiment, when the metal hose moves downward, it first moves to the clamping plate 45 on the second clamping member 43, and then the clamping plate 45 on the first clamping member 42 moves above the metal hose. At this time, the telescopic members 46 on the first clamping member 42 and the second clamping member 43 contract, causing the two sets of clamping plates 45 to move toward each other to clamp the flange at the end of the metal hose, so that the metal hose is in a stable state during testing, ensuring that the testing device 5 can be connected to the metal hose and the test is carried out normally, thereby improving the test efficiency.

[0043] Since the flange is a hexagonal prism, and the flange and the metal hose joint are movably connected, and the flange is not easy to rotate without external force, when the two clamping plates 45 clamp the flange, the two clamping plates 45 are against the side edges of the flange. When the metal hose is tested, the flange is clamped in opposite directions by the two clamping plates 45, which may cause the flange to rotate. When the flange rotates, the internal sealing gasket may be misaligned or twisted, destroying the original sealing structure. In this way, during the test, the test medium may leak, which will affect the final test results and thus reduce the test accuracy. To this end, when the two plywood 45 move toward each other, since the position of the tooth plate 2 93 is fixed, the gear 92 rotates, so that the tooth plate 1 911 drives the movable plate 91 to move, and the movable plates 91 on the two plywood 45 move in opposite directions, so that the two movable plates 91 exert forces in opposite directions on the flange through the side edges of the flange, causing the flange to rotate slowly, so that the two opposite side surfaces of the flange will respectively abut against the two plywood 45, so that the flange is in a stably clamped state, effectively preventing the flange from rotating during the detection process, thereby avoiding leakage and affecting the detection results;

[0044] Since the flange is restricted by the side surface of the side plate 2 and is arranged in an upwardly inclined manner with the side surface of the upper half of the side plate 2, when the metal hose moves downward, the flange slowly approaches the side surface of the side plate 2. When the flange moves to the vertical section of the side plate 2, the inner wall of the flange abuts against the side surface of the side plate 2, and the end of the metal hose is clamped between the two clamping plates 21. In this way, the metal hose is in a straightened state. In addition, the two sides of the flange are clamped by the two clamping plates 45. At this time, when the detection device 5 is detecting the metal hose, the metal hose is in a stable state as a whole, thereby ensuring relatively accurate detection results and improving detection accuracy.

[0045] After the metal hose is inspected, the four clamps 45 on both sides continue to move the metal hose downward. If the metal hose passes the inspection, the two clamps 45 on one side loosen one end of the metal hose in advance, so that this end swings to the other end under the action of gravity, and finally the two clamps 45 on the other side loosen the other end of the metal hose, so that the qualified metal hose falls into the box below for storing qualified metal hoses; when the metal hose fails the inspection, the above steps can be reversed, so that the unqualified metal hose falls into the box below for storing unqualified metal hoses; in this way, automatic sorting is achieved, further improving the inspection efficiency.

[0046] like Figure 1 、 Figure 2 、 Figure 3 and Figure 7As shown, a mounting hole is provided on the side plate 2, and an intermittent roller 6 is rotatably installed in the mounting hole. The intermittent roller 6 is located between the guide roller 7 and the clamping assembly 4. The intermittent roller 6 is connected to an external driving source and rotates intermittently. A plurality of grooves 61 are provided on the surface of the intermittent roller 6. When the grooves 61 on two groups of intermittent rollers 6 are opposite to each other, the metal hose is stuck between the two grooves 61.

[0047] In actual application of this embodiment, the metal hose is guided by the guide roller 7 and then moves down to the two sets of intermittent rollers 6. The intermittent rollers 6 rotate intermittently to make the metal hose move down intermittently, thereby ensuring that the two clamping plates 45 can clamp the metal hose while preventing the metal hose from being jammed above the clamping assembly 4, thereby ensuring the smooth flow of the inspection process.

[0048] When the metal hose enters between the two grooves 61, the two grooves 61 straighten the bent metal hose, and the two side plates 2 slowly straighten the metal hose when the metal hose moves downward, so that the metal hose is in a straightened state as a whole after being clamped. This effectively prevents the metal hose from being in a bent state during detection, and effectively prevents the bending of the metal hose from causing the original leakage point to be blocked due to the bending deformation of the hose, thereby further improving the detection accuracy.

[0049] Furthermore, a set of blowing parts 8 is installed between the two side panels 2 , and the blowing parts 8 are connected to the external air source system. When the metal hose is stuck in the two grooves 61 , the flange at one end of the metal hose is located at the blowing parts 8 .

[0050] In actual application of this embodiment, dust and impurities will inevitably enter the metal hose during the production and processing process. During testing, a test medium needs to be injected into the tube to gradually increase the pressure in the tube. This may cause the dust and impurities in the tube to adhere to the existing leakage point, thereby blocking the existing leakage point. This will prevent the test medium from being discharged from the leakage point, resulting in little change in the final end pressure value, making it impossible to determine whether the metal hose has a leak. At this time, when the metal hose is stuck in the two grooves 61, one end of the metal hose is exactly located at the blowing member 8, and air is blown into the metal hose through the blowing member 8, while the other end of the metal hose is not blocked. In this way, the dust and impurities in the metal hose are cleaned out, effectively avoiding dust and impurities remaining inside the metal hose during testing, thereby ensuring relatively accurate test results and further improving detection accuracy. Moreover, when the blowing member 8 blows air into the metal hose, the metal hose is already in a completely straightened state, thereby preventing dust and impurities from being clamped in the corrugated gaps in the tube, thereby enhancing the cleaning effect and further improving detection accuracy.

[0051] A method for detecting a leak detection device for a metal hose, the method being applied to the leak detection device for a metal hose as described above, the method comprising the following steps:

[0052] Step S1: First, several metal hoses are placed between two guide plates 3. Then, the guide rollers 7 and the intermittent rollers 6 are rotated intermittently. The metal hoses are guided downward by the guide rollers 7. The intermittent rollers 6 cooperate with the clamping plates 21 to straighten the bent metal hoses.

[0053] Step S2: The metal hose moves down to the clamping assembly 4 and is clamped by the clamping member 1 42 and the clamping member 2 43 . Driven by the clamping member 1 42 and the clamping member 2 43 , the metal hose moves to the detection device 5 .

[0054] Step S3: the detection device 5 performs a leak detection on the metal hose. If the end pressure value after pressure holding decreases, the metal hose is unqualified. If the end pressure value after pressure holding does not change, the metal hose is qualified.

[0055] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. A leak detection device for a metal hose, comprising a table (1) and a detection device (5), characterized in that: The device further comprises: Side panels (2), two side panels (2) are provided on the table top (1), the two side panels (2) are arranged side by side, the metal hose passes between the two side panels (2) from top to bottom, a through hole is opened on the table top (1), and the through hole is located between the two side panels (2); A clamping assembly (4) is installed on both sides of the two side panels (2). The clamping assembly (4) includes two groups of conveyor belts (41). The two groups of conveyor belts (41) are connected to a driving member (47) and a roller (48). The two groups of conveyor belts (41) rotate toward each other. A plurality of clamping members (42) and a plurality of clamping members (43) are evenly arranged on the periphery of the two groups of conveyor belts (41). The adjacent clamping members (42) and the clamping members (43) clamp the end of the metal hose. When the end of the metal hose moves to the detection device (5), the two groups of conveyor belts (41) stop moving, and the detection device (5) performs a leak detection on the metal hose.

2. The leak detection device for a metal hose according to claim 1, characterized in that: The structures of the clamping member 1 (42) and the clamping member 2 (43) are the same. When the clamping member 1 (42) and the clamping member 2 (43) clamp the metal hose, the clamping member 1 (42) and the clamping member 2 (43) are symmetrical along the center line of the axis of the metal hose. When the clamping member 1 (42) and the clamping member 2 (43) are located between two groups of conveyor belts (41), the clamping member 1 (42) and the clamping member 2 (43) are in an up-down staggered state. The clamping member 1 (42) and the clamping member 2 (43) both include a connecting plate (44), which is fixed on the outer surface of the conveyor belt (41). A clamping plate (45) is slidably installed on the other side of the connecting plate (44). A telescopic member (46) is installed on the connecting plate (44), and the output end of the telescopic member (46) is connected to the clamping plate (45).

3. The leak detection device for a metal hose according to claim 2, characterized in that: Clamping plates (21) are provided on opposite sides of the two side panels (2) except for the top and bottom edge positions. The end of the metal hose is clamped between two opposite sets of clamping plates (21) on the two side panels (2), and the inner wall of the flange at the end of the metal hose abuts against the side surface of the side panel (2).

4. The leak detection device for a metal hose according to claim 3, characterized in that: A correction assembly (9) is installed on the clamping plate (45), and the correction assembly (9) includes a movable plate (91), and the movable plate (91) is slidably installed on the clamping plate (45). One end of the movable plate (91) is provided with a tooth plate 1 (911), and a gear (92) is rotatably installed in the clamping plate (45). A tooth plate 2 (93) is fixed on the connecting plate (44), and the tooth plate 1 (911) and the tooth plate 2 (93) are perpendicular to each other. The tooth plate 1 (911) and the tooth plate 2 (93) are meshed with the gear (92).

5. The leak detection device for a metal hose according to claim 3, characterized in that: The side surface of the upper half of the side plate (2) is arranged in an upwardly inclined state, the top of the side plate (2) is provided with a guide plate (3) inclined outwardly, and the top of the side plate (2) is also provided with a guide roller (7), which is connected to an external drive source.

6. The leak detection device for a metal hose according to claim 3, characterized in that: The side plate (2) is provided with a mounting hole, and an intermittent roller (6) is rotatably mounted in the mounting hole. The intermittent roller (6) is located between the guide roller (7) and the clamping assembly (4). The intermittent roller (6) is connected to an external driving source and rotates intermittently. A plurality of grooves (61) are provided on the surface of the intermittent roller (6). When the grooves (61) on two groups of the intermittent rollers (6) are opposite to each other, the metal hose is stuck between the two grooves (61).

7. The leak detection device for a metal hose according to claim 6, characterized in that: A set of blowing parts (8) is installed between the two side plates (2). The blowing parts (8) are connected to an external air source system. When the metal hose is stuck in the two grooves (61), the flange at one end of the metal hose is located at the blowing part (8).

8. A method for detecting a leak detection device for a metal hose, characterized in that: The method is applied to the leak detection device for a metal hose as described in any one of claims 1 to 7 above, and the method comprises the following steps: Step S1: First, a plurality of metal hoses are placed between two guide plates (3), and then the guide roller (7) and the intermittent roller (6) are rotated intermittently. The metal hoses are guided downward by the guide roller (7), and the intermittent roller (6) cooperates with the clamping plate (21) to straighten the bent metal hoses. Step S2: The metal hose moves down to the clamping assembly (4) and is clamped by the clamping member 1 (42) and the clamping member 2 (43), and is driven by the clamping member 1 (42) and the clamping member 2 (43) to move to the detection device (5); Step S3: The detection device (5) performs a leak detection on the metal hose. If the final pressure value after pressure holding decreases, the metal hose is unqualified. If the final pressure value after pressure holding does not change, the metal hose is qualified.

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