A leak detection auxiliary device for steel cylinder angle valve

Abstract

The present invention discloses a leakage detection auxiliary device for a steel cylinder angle valve, and now proposes the following scheme, which includes a detection table, on which a supporting structure for placing a steel cylinder body is arranged, on which a moving structure and a spraying structure for performing leakage detection on the steel cylinder body are arranged, and on which a display structure and a mounting structure are arranged; by arranging the spraying structure, a hollow conveying frame drives a mounting ring and a spray head to move close to the steel cylinder body, at which time an electronic control valve is automatically opened under the action of an internal sensor, so that the air pressure inside the steel cylinder body can enter into the storage tank through an air intake pipe, so that the detection liquid inside the storage tank can enter into the hollow conveying frame through a drain pipe, and then enter into the spray head through a connecting pipe, and finally the joint area between the steel cylinder and the angle valve and the connection part of the angle valve body are evenly and comprehensively sprayed by the spray head, so as to perform a secondary leakage detection process and ensure the accuracy of the leakage detection.

Description

Technical Field

[0001] The invention relates to the technical field of steel cylinder angle valve detection, and in particular to a leakage detection auxiliary device for a steel cylinder angle valve. Background Art

[0002] Steel cylinders, commonly known as gas cylinders, are tanks used to hold flammable gases, such as our common coal gas tanks and natural gas tanks; steel cylinders control the gas emission rate through angle valves. During the filling process of steel cylinders, inspectors need to conduct air leakage detection on the angle valves to ensure that the angle valves are in a closed state when opened. The existing leakage detection operation of steel cylinder angle valves mainly includes manually spraying soapy water on the steel cylinders and observing the soapy water. This detection step is between the automatic filling and valve closing processes of the steel cylinders on the production line. The process lasts about 4 seconds. The operator needs to pay attention to the position of the steel cylinder at all times within 4 seconds, and find the right time to press the spray bottle to spray soapy water on the moving steel cylinder angle valve to check for leaks.

[0003] Patent No. CN217483773U discloses a leak detection auxiliary device for a steel cylinder angle valve, which relates to the field of steel cylinder testing equipment, and includes a bracket, a spray gun, and a control valve. The spray gun is arranged on the bracket and is used to spray a detection liquid to the steel cylinder angle valve; the control valve is used to control the switch of the detection liquid, and includes at least one trigger end, which is arranged on one side of the conveying path of the steel cylinder and is used to control the opening and closing of the control valve; wherein, when the steel cylinder moves to the detection station, the trigger end is triggered, and the control valve is opened. The leak detection auxiliary device triggers the trigger end when the steel cylinder moves to the detection station, and the control valve is opened, so that the spray gun automatically sprays soapy water on the steel cylinder. During this process, the operator does not need to hold a spray pot, which reduces the labor intensity and avoids the influence of the difference in manual spraying operation on the detection result. The spraying area can also be observed at different angles, which improves the detection rate of leaking steel cylinders and the qualified rate of steel cylinder filling.

[0004] Since the utility model mainly uses a single spray gun to automatically spray soapy water on the steel cylinder, it is used to observe whether there is any leakage in the steel cylinder and the angle valve. However, this detection method has certain limitations. It is only applicable to the situation where there is air pressure inside the steel cylinder. If there is no gas inside the steel cylinder, it is difficult for the soapy water to bubble, which makes it difficult to observe accurately. In addition, the utility model uses a single spray gun to automatically spray soapy water on the steel cylinder, and the spraying range is small. It is difficult to fully spray the connection between the steel cylinder and the angle valve and the seam of the angle valve itself, which has certain limitations. In response to the above problems, the present invention document proposes a leak detection auxiliary device for a steel cylinder angle valve. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings existing in the prior art, and to propose a leak detection auxiliary device for a cylinder angle valve, which uses a nozzle to evenly and comprehensively spray the joint area between the cylinder and the angle valve and the connecting part of the angle valve body, thereby performing a secondary leak detection process to ensure the accuracy of the leak detection.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A leakage detection auxiliary device for a cylinder angle valve, comprising a detection platform, a support structure for placing a cylinder body is arranged on the detection platform, a moving structure and a foaming structure for performing leakage detection on the cylinder body are arranged on the detection platform, and a display structure and a mounting structure are arranged on the moving structure;

[0008] The movable structure includes at least one movable base slidably connected to the top of the detection platform, a second electric push rod is installed on the movable base, and the second electric push rod is fixed to the detection platform, a compressor and an air outlet are installed on the movable base, and the air outlet end of the compressor is connected to the air outlet, and the foaming structure includes at least one storage tank installed on the top of the detection platform, an air inlet pipe and a drain pipe are connected to the storage tank, the air inlet pipe and the air outlet are connected to each other, and an electronic control valve is installed on the outer wall of the air inlet pipe, a sensor is arranged inside the electronic control valve, a hollow conveying rack is connected to the drain pipe, a mounting ring is fixedly connected to the bottom of the hollow conveying rack, and a plurality of rotating plates are rotatably connected to the mounting ring through an adjusting structure, a nozzle is installed at the bottom of the rotating plate, and the nozzle is connected to the hollow conveying rack through a connecting pipe.

[0009] Preferably, a rubber pad is installed inside the air outlet, and the rubber pad is located at one end of the air outlet far away from the compressor.

[0010] Preferably, the support structure includes a support plate slidably connected to the inside of the test bench, and a first electric push rod installed on both sides of the test bench, the movable rod of the first electric push rod is fixedly connected to the support plate, and the cylinder body is placed on the top of the support plate.

[0011] Preferably, the display structure includes a mounting tube fixedly connected to the punching bag, a mounting cover fixedly connected to the top of the mounting tube, a movable frame slidably connected inside the mounting tube and the mounting cover, a slider fixedly connected to the bottom of the movable frame, a first spring sleeved on the outer wall of the movable frame, a rotating frame rotatably connected inside the mounting cover, a first movable plate and a second movable plate slidably connected at both ends of the rotating frame respectively, a display panel slidably connected inside the mounting cover, the first movable plate is rotatably connected to the display panel, and the second movable plate is rotatably connected to the movable frame.

[0012] Preferably, a sealing gasket is provided at the bottom of the slider, the slider is slidably connected to the inside of the mounting tube, the diameter of the mounting tube is smaller than the diameter of the outlet tube, one end of the first spring is fixedly connected to the slider, and the other end of the first spring is fixedly connected to the mounting tube.

[0013] Preferably, the top of the display panel protrudes from the mounting cover, and the length from one end of the rotating frame surface close to the first movable plate to the rotating shaft is greater than the length from one end of the rotating frame surface close to the second movable plate to the rotating shaft.

[0014] Preferably, the mounting structure includes a vertical pole fixedly connected to the top of the punching bag, the outer wall of the vertical pole is fixedly connected to a mounting plate, and a fixing frame is slidably connected, the fixing frame is fixedly connected to the hollow conveying frame, and the bottom of the fixing frame is fixedly connected to a second spring and a protective sleeve.

[0015] Preferably, one end of the second spring away from the fixing frame is fixedly connected to the mounting plate, and the second spring is sleeved on the outer wall of the vertical pole, and the second spring is located inside the protective sleeve.

[0016] Preferably, the adjustment structure includes a plurality of adjustment plates fixedly connected to the outer wall of the mounting ring, a guide plate is slidably connected inside the adjustment plate, a fastening bolt for limiting and fixing the guide plate is installed on the top of the guide plate, the rotating plate is rotatably connected to the bottom of the guide plate, and the outer wall of the rotating plate is provided with bolts for fixing the guide plate.

[0017] Preferably, at least one limit plate is slidably connected to the top of the detection platform, and the limit plate selectively fits with the cylinder body to fix the cylinder body.

[0018] Compared with the prior art, the present invention provides a leakage detection auxiliary device for a cylinder angle valve, which has the following beneficial effects:

[0019] 1. The leak detection auxiliary device of the cylinder angle valve is provided with a foaming structure. When the movable structure inflates and pressurizes the cylinder body and the angle valve installed at the end of the cylinder body, after the preliminary leak detection treatment, the hollow conveying frame is directly pressed, so that the hollow conveying frame drives the mounting ring and the nozzle to move close to the cylinder body. At this time, the electronic control valve is automatically opened under the action of the internal sensor, so that the air pressure inside the cylinder body can enter the storage tank through the air inlet pipe, so that the detection liquid inside the storage tank can enter the hollow conveying frame through the drain pipe, and then enter the nozzle through the connecting pipe. Finally, the joint area between the cylinder and the angle valve and the connecting part of the angle valve body are evenly and comprehensively sprayed through the nozzle, so as to perform secondary leak detection treatment to ensure the accuracy of leak detection.

[0020] 2. The leak detection auxiliary device of the cylinder angle valve is provided with a moving structure and a display structure. When the operator is performing leak detection on the cylinder body and the angle valve, the operator first opens the angle valve. After the angle valve and the rubber pad are tightly fitted, the compressor works to inflate and pressurize the inside of the cylinder body. As the air pressure inside the cylinder body gradually increases, the slider moves closer to the mounting cover under the action of the air pressure, so that the display panel retracts into the mounting cover. When the compressor stops working, if there is a leak in the cylinder body and the angle valve, or at the connection between the two, the slider moves closer to the outlet tube inside the mounting tube under the action of the first spring, so that the display panel can extend out of the mounting cover, thereby playing a reminder role and facilitating the operator to observe. Moreover, since the diameter of the mounting tube is small, the slider changes more obviously with the air pressure, thereby ensuring the accuracy of the detection.

[0021] 3. The leak detection auxiliary device of the cylinder angle valve is provided with an adjustment structure. With the cooperation of the adjustment plate and the guide plate, the operator can flexibly adjust the position of the nozzle, so that the operator can align the nozzle with the corresponding position on the cylinder body and the angle valve according to the shapes of the cylinder body and the angle valve, thereby ensuring the normal progress of the leak detection operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional view of a leakage detection auxiliary device for a steel cylinder angle valve proposed by the present invention;

[0023] Figure 2 A view of the connecting structure of the moving structure, the display structure, the mounting structure and the spraying structure of the present invention;

[0024] Figure 3 A view of the connection structure between the foaming structure and the regulating structure of the present invention;

[0025] Figure 4 A view showing a punching bag of the present invention and a cross-sectional structure of the display structure;

[0026] Figure 5 A view of the connection structure of the adjustment plate, the guide plate, the rotating plate, the nozzle and the connecting pipe of the present invention;

[0027] Figure 6 A view of the disassembly structure of the adjustment plate and the guide plate of the present invention;

[0028] Figure 7 A view of the cross-sectional structure of the mounting tube and the mounting cover of the present invention;

[0029] Figure 8 It is a view of the connection structure of the rotating frame, the first movable plate, the second movable plate, the movable frame and the display panel of the present invention.

[0030] In the figure: 1, test bench; 2, support structure; 201, support plate; 202, first electric push rod; 3, cylinder body; 4, mobile structure; 401, mobile base; 402, compressor; 403, air bag; 404, rubber pad; 405, second electric push rod; 5, display structure; 501, mounting tube; 502, mounting cover; 503, movable frame; 504, slider; 505, first spring; 506, rotating frame; 507, first movable plate; 508, second movable plate; 509, display Indicator plate; 6. Installation structure; 601. Vertical pole; 602. Installation plate; 603. Fixed frame; 604. Second spring; 605. Protective sleeve; 7. Spray structure; 701. Hollow conveying frame; 702. Storage tank; 703. Inlet pipe; 704. Drain pipe; 705. Electronic control valve; 706. Mounting ring; 707. Rotating plate; 708. Spray head; 709. Connecting pipe; 8. Adjustment structure; 801. Adjustment plate; 802. Guide plate; 803. Fastening bolts; 9. Limit plate. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] Example 1: Reference Figure 1-6 , a leakage detection auxiliary device for a cylinder angle valve, comprising a detection platform 1, a support structure 2 for placing a cylinder body 3 is arranged on the detection platform 1, a moving structure 4 and a foaming structure 7 for leak detection of the cylinder body 3 are arranged on the detection platform 1, and a display structure 5 and a mounting structure 6 are arranged on the moving structure 4;

[0034] The mobile structure 4 includes at least one mobile base 401 slidably connected to the top of the detection platform 1, a second electric push rod 405 is installed on the mobile base 401, and the second electric push rod 405 is fixed to the detection platform 1, a compressor 402 and an air outlet 403 are installed on the mobile base 401, and the air outlet end of the compressor 402 is connected to the air outlet 403, and the foam spraying structure 7 includes at least one storage tank 702 installed on the top of the detection platform 1, and the storage tank 702 is connected to the air inlet pipe 703 and the exhaust pipe 703. The water pipe 704, the air inlet pipe 703 and the air outlet tube 403 are interconnected, and an electronic control valve 705 is installed on the outer wall of the air inlet pipe 703. The drain pipe 704 is connected to the hollow conveying rack 701, and a mounting ring 706 is fixedly connected to the bottom of the hollow conveying rack 701, and a plurality of rotating plates 707 are rotatably connected to the mounting ring 706 through an adjusting structure 8. A nozzle 708 is installed at the bottom of the rotating plate 707, and the nozzle 708 is interconnected with the hollow conveying rack 701 through a connecting pipe 709.

[0035] In the present invention, a rubber pad 404 is installed inside the air outlet 403, and the rubber pad 404 is located at one end of the air outlet 403 away from the compressor 402. By setting the rubber pad 404, when the rubber pad 404 is tightly fitted with the angle valve on the surface of the cylinder body 3, leakage at the connection between the two is avoided, thereby ensuring the accuracy of the leak detection result.

[0036] In the present invention, the support structure 2 includes a support plate 201 slidably connected to the inside of the test platform 1, and a first electric push rod 202 installed on both sides of the test platform 1. The movable rod of the first electric push rod 202 is fixedly connected to the support plate 201, and the cylinder body 3 is placed on the top of the support plate 201. By setting the support plate 201 and the first electric push rod 202, the operator adjusts the first electric push rod 202 so that the first electric push rod 202 drives the support plate 201 to slide inside the test platform 1. By adjusting the height of the support plate 201, the device can flexibly perform leak detection on cylinder bodies 3 of different sizes, and has strong applicability.

[0037] In the present invention, the display structure 5 includes a mounting tube 501 fixedly connected to the gas outlet 403, a mounting cover 502 fixedly connected to the top of the mounting tube 501, a movable frame 503 slidably connected inside the mounting tube 501 and the mounting cover 502, a slider 504 fixedly connected to the bottom of the movable frame 503, a first spring 505 sleeved on the outer wall of the movable frame 503, a rotating frame 506 rotatably connected inside the mounting cover 502, a first movable plate 507 and a second movable plate 508 slidably connected at both ends of the rotating frame 506, and the mounting cover 502 is internally connected to the mounting tube 501. The first movable plate 507 is rotatably connected to the display panel 509, the second movable plate 508 is rotatably connected to the movable frame 503, a sealing gasket is provided at the bottom of the slider 504, the slider 504 is slidably connected to the inside of the mounting tube 501, the diameter of the mounting tube 501 is smaller than the diameter of the outlet tube 403, one end of the first spring 505 is fixedly connected to the slider 504, and the other end of the first spring 505 is fixedly connected to the mounting tube 501, the top of the display panel 509 protrudes from the mounting cover 502, and the surface of the rotating frame 506 is close to the first The length of one end of the movable plate 507 from the rotating shaft is greater than the length of one end of the rotating frame 506 surface close to the second movable plate 508 from the rotating shaft. By setting the display structure 5, when the operator performs a leak detection process on the cylinder body 3 and the angle valve, the operator first opens the angle valve. After the angle valve and the rubber pad 404 are tightly fitted, the compressor 402 works to inflate and pressurize the inside of the cylinder body 3. As the air pressure inside the cylinder body 3 gradually increases, the slider 504 moves close to the mounting cover 502 under the action of the air pressure, thereby making the display The indicator plate 509 is retracted into the installation cover 502. When the compressor 402 stops working, if there is leakage in the cylinder body 3 and the angle valve, or in the connection between the two, under the action of the first spring 505, the slider 504 moves inside the installation tube 501 close to the air outlet tube 403, so that the display plate 509 can extend out of the installation cover 502, thereby playing a reminder role and facilitating observation by the operator. Moreover, since the diameter of the installation tube 501 is relatively small, the slider 504 changes more obviously with the air pressure, thereby ensuring the accuracy of the detection.

[0038] Example 2: Reference Figure 1-8 , a leakage detection auxiliary device for a cylinder angle valve, comprising a detection platform 1, a support structure 2 for placing a cylinder body 3 is arranged on the detection platform 1, a moving structure 4 and a foaming structure 7 for leak detection of the cylinder body 3 are arranged on the detection platform 1, and a display structure 5 and a mounting structure 6 are arranged on the moving structure 4;

[0039] The mobile structure 4 includes at least one mobile base 401 slidably connected to the top of the detection platform 1, a second electric push rod 405 is installed on the mobile base 401, and the second electric push rod 405 is fixed to the detection platform 1, a compressor 402 and an air outlet 403 are installed on the mobile base 401, and the air outlet end of the compressor 402 is connected to the air outlet 403, and the foam spraying structure 7 includes at least one storage tank 702 installed on the top of the detection platform 1, and the storage tank 702 is connected to the air inlet pipe 703 and the exhaust pipe 703. The water pipe 704, the air inlet pipe 703 and the air outlet tube 403 are interconnected, and an electronic control valve 705 is installed on the outer wall of the air inlet pipe 703. The drain pipe 704 is connected to the hollow conveying rack 701, and a mounting ring 706 is fixedly connected to the bottom of the hollow conveying rack 701, and a plurality of rotating plates 707 are rotatably connected to the mounting ring 706 through an adjusting structure 8. A nozzle 708 is installed at the bottom of the rotating plate 707, and the nozzle 708 is interconnected with the hollow conveying rack 701 through a connecting pipe 709.

[0040] In the present invention, a rubber pad 404 is installed inside the air outlet 403, and the rubber pad 404 is located at one end of the air outlet 403 away from the compressor 402. By setting the rubber pad 404, when the rubber pad 404 is tightly fitted with the angle valve on the surface of the cylinder body 3, leakage at the connection between the two is avoided, thereby ensuring the accuracy of the leak detection result.

[0041] In the present invention, the support structure 2 includes a support plate 201 slidably connected to the inside of the test platform 1, and a first electric push rod 202 installed on both sides of the test platform 1. The movable rod of the first electric push rod 202 is fixedly connected to the support plate 201, and the cylinder body 3 is placed on the top of the support plate 201. By setting the support plate 201 and the first electric push rod 202, the operator adjusts the first electric push rod 202 so that the first electric push rod 202 drives the support plate 201 to slide inside the test platform 1. By adjusting the height of the support plate 201, the device can flexibly perform leak detection on cylinder bodies 3 of different sizes, and has strong applicability.

[0042] In the present invention, the display structure 5 includes a mounting tube 501 fixedly connected to the gas outlet 403, a mounting cover 502 fixedly connected to the top of the mounting tube 501, a movable frame 503 slidably connected inside the mounting tube 501 and the mounting cover 502, a slider 504 fixedly connected to the bottom of the movable frame 503, a first spring 505 sleeved on the outer wall of the movable frame 503, a rotating frame 506 rotatably connected inside the mounting cover 502, a first movable plate 507 and a second movable plate 508 slidably connected at both ends of the rotating frame 506, and the mounting cover 502 is internally connected to the mounting tube 501. The first movable plate 507 is rotatably connected to the display panel 509, the second movable plate 508 is rotatably connected to the movable frame 503, a sealing gasket is provided at the bottom of the slider 504, the slider 504 is slidably connected to the inside of the mounting tube 501, the diameter of the mounting tube 501 is smaller than the diameter of the outlet tube 403, one end of the first spring 505 is fixedly connected to the slider 504, and the other end of the first spring 505 is fixedly connected to the mounting tube 501, the top of the display panel 509 protrudes from the mounting cover 502, and the surface of the rotating frame 506 is close to the first The length of one end of the movable plate 507 from the rotating shaft is greater than the length of one end of the rotating frame 506 surface close to the second movable plate 508 from the rotating shaft. By setting the display structure 5, when the operator performs a leak detection process on the cylinder body 3 and the angle valve, the operator first opens the angle valve. After the angle valve and the rubber pad 404 are tightly fitted, the compressor 402 works to inflate and pressurize the inside of the cylinder body 3. As the air pressure inside the cylinder body 3 gradually increases, the slider 504 moves close to the mounting cover 502 under the action of the air pressure, thereby making the display The indicator plate 509 is retracted into the installation cover 502. When the compressor 402 stops working, if there is leakage in the cylinder body 3 and the angle valve, or in the connection between the two, under the action of the first spring 505, the slider 504 moves inside the installation tube 501 close to the air outlet tube 403, so that the display plate 509 can extend out of the installation cover 502, thereby playing a reminder role and facilitating observation by the operator. Moreover, since the diameter of the installation tube 501 is relatively small, the slider 504 changes more obviously with the air pressure, thereby ensuring the accuracy of the detection.

[0043] In the present invention, the mounting structure 6 includes a vertical pole 601 fixedly connected to the top of the gas outlet 403, the outer wall of the vertical pole 601 is fixedly connected to the mounting plate 602, and the fixing frame 603 is slidably connected, the fixing frame 603 is fixedly connected to the hollow conveying frame 701, and the bottom of the fixing frame 603 is fixedly connected to the second spring 604 and the protective sleeve 605, the second spring 604 is fixedly connected to the mounting plate 602 at one end away from the fixing frame 603, and the second spring 604 is sleeved on the outer wall of the vertical pole 601, and the second spring 604 is sleeved on the outer wall of the vertical pole 601. 04 is located inside the protective sleeve 605. By setting the installation structure 6, when the operator presses the hollow conveying frame 701, the installation ring 706 drives the nozzle 708 to move close to the cylinder body 3. After spraying foam on the cylinder body 3 and the angle valve, the operator releases the pressure on the hollow conveying frame 701. Under the elastic force of the second spring 604, the fixing frame 603 automatically drives the hollow conveying frame 701 and the installation ring 706 to return to their original positions, which is convenient for the subsequent detection and processing of the cylinder body 3 and the angle valve.

[0044] In the present invention, the adjustment structure 8 includes a plurality of adjustment plates 801 fixedly connected to the outer wall of the mounting ring 706, a guide plate 802 is slidably connected inside the adjustment plate 801, a fastening bolt 803 for limiting and fixing the guide plate 802 is installed on the top of the guide plate 802, a rotating plate 707 is rotatably connected to the bottom of the guide plate 802, and a bolt for fixing the guide plate 802 is arranged on the outer wall of the rotating plate 707. By setting the adjustment structure 8, with the cooperation of the adjustment plate 801 and the guide plate 802, the operator can flexibly adjust the position of the nozzle 708, so that the operator can align the nozzle 708 with the corresponding position on the cylinder body 3 and the angle valve according to the shape of the cylinder body 3 and the angle valve, thereby ensuring the normal progress of the leak detection operation.

[0045] In the present invention, at least one limit plate 9 is slidably connected to the top of the detection platform 1, and the limit plate 9 selectively fits with the cylinder body 3 to fix the cylinder body 3. By setting the limit plate 9, it is convenient to limit and fix the cylinder body 3 undergoing leak detection, thereby facilitating the close fit between the cylinder body 3 and the rubber pad 404, thereby avoiding errors in the detection results due to the loose connection between the cylinder body 3 and the rubber pad 404.

[0046] Working principle: When the operator uses the device to detect leaks on the cylinder body 3 and the angle valve, the operator first adjusts the first electric push rod 202. When the first electric push rod 202 is extended and retracted, the support plate 201 moves inside the detection table 1, and the operator adjusts the fastening bolt 803 so that the fastening bolt 803 is released from the tight fit with the adjustment plate 801. The operator pulls the guide plate 802 to adjust the length between the adjustment plate 801 and the guide plate 802, and rotates the nozzle 708 so that the nozzle 708 can be aligned with the corresponding positions on the cylinder body 3 and the angle valve;

[0047] When the operator performs a leak detection process on the cylinder body 3 and the angle valve, after placing the cylinder body 3 on the top of the support plate 201, the limit plate 9 is adjusted so that the limit plate 9 limits and fixes the cylinder body 3. The operator first opens the angle valve, and the second electric push rod 405 is extended. When the angle valve is tightly fitted with the rubber pad 404, the compressor 402 works to inflate and pressurize the inside of the cylinder body 3. As the air pressure inside the cylinder body 3 gradually increases, the slider 504 moves close to the mounting cover 502 under the action of the air pressure, so that the display panel 509 is retracted into the mounting cover 502. When the compressor 402 stops working, if there is a leak in the cylinder body 3 and the angle valve, or at the connection between the two, under the action of the first spring 505, the slider 504 moves close to the air outlet 403 inside the mounting tube 501, so that the display panel 509 can extend out of the mounting cover 502, thereby playing a reminder role and completing the step-by-step leak detection process.

[0048] When the movable structure 4 inflates and pressurizes the cylinder body 3 and the angle valve installed at the end of the cylinder body 3 for preliminary leak detection, the operator directly presses the hollow conveying frame 701, so that the hollow conveying frame 701 drives the mounting ring 706 and the nozzle 708 to move close to the cylinder body 3. When the fixed frame 603 moves close to the mounting plate 602, the second spring 604 is squeezed, and the electronic control valve 705 is automatically opened at this time, so that the air pressure inside the cylinder body 3 can enter the storage tank 702 through the air inlet pipe 703, so that the detection liquid inside the storage tank 702 can enter the hollow conveying frame 701 through the drain pipe 704, and then enter the nozzle 708 through the connecting pipe 709, and finally sprayed onto the surface of the cylinder body 3 and the angle valve through the nozzle 708. The leaking part will bubble, so as to perform secondary leak detection, and the leaking place can be directly displayed, which is convenient for the operator to mark.

[0049] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A leak detection auxiliary device for a cylinder angle valve, comprising a detection platform (1), characterized in that: The testing platform (1) is provided with a support structure (2) for placing a steel cylinder body (3), the testing platform (1) is provided with a moving structure (4) and a foaming structure (7) for performing a leak detection process on the steel cylinder body (3), and the moving structure (4) is provided with a display structure (5) and a mounting structure (6); The mobile structure (4) comprises at least one mobile base (401) slidably connected to the top of the detection platform (1), a second electric push rod (405) is mounted on the mobile base (401), and the second electric push rod (405) is fixed to the detection platform (1), a compressor (402) and an air outlet (403) are mounted on the mobile base (401), and the air outlet end of the compressor (402) is connected to the air outlet (403), and the foam spraying structure (7) comprises at least one storage tank (702) mounted on the top of the detection platform (1), the storage tank (702) is connected to an air inlet pipe (703) and a drain pipe (704), and the air inlet pipe (703) and the drain pipe (704) are connected to the storage tank (702). The air pipe (703) is communicated with the air outlet tube (403), and an electronic control valve (705) is installed on the outer wall of the air inlet pipe (703). A sensor is arranged inside the electronic control valve (705). The drain pipe (704) is communicated with the hollow conveying frame (701). A mounting ring (706) is fixedly connected to the bottom of the hollow conveying frame (701), and a plurality of rotating plates (707) are rotatably connected to the mounting ring (706) via an adjustment structure (8). A nozzle (708) is installed at the bottom of the rotating plate (707), and the nozzle (708) is communicated with the hollow conveying frame (701) via a connecting pipe (709).

2. The leak detection auxiliary device for a cylinder angle valve according to claim 1 is characterized in that: A rubber pad (404) is installed inside the air outlet cylinder (403), and the rubber pad (404) is located at an end of the air outlet cylinder (403) away from the compressor (402).

3. The leak detection auxiliary device for a cylinder angle valve according to claim 1 is characterized in that: The support structure (2) comprises a support plate (201) slidably connected to the inside of the test platform (1), and first electric push rods (202) installed on both sides of the test platform (1), wherein the movable rods of the first electric push rods (202) are fixedly connected to the support plate (201), and the cylinder body (3) is placed on top of the support plate (201).

4. The leak detection auxiliary device for a cylinder angle valve according to claim 1 is characterized in that: The display structure (5) comprises a mounting tube (501) fixedly connected to the air outlet bag (403); a mounting cover (502) is fixedly connected to the top of the mounting tube (501); a movable frame (503) is slidably connected inside the mounting tube (501) and the mounting cover (502); a slider (504) is fixedly connected to the bottom of the movable frame (503); a first spring (505) is sleeved on the outer wall of the movable frame (503); a rotating frame (506) is rotatably connected inside the mounting cover (502); a first movable plate (507) and a second movable plate (508) are slidably connected at both ends of the rotating frame (506); a display panel (509) is slidably connected inside the mounting cover (502); the first movable plate (507) is rotatably connected to the display panel (509); and the second movable plate (508) is rotatably connected to the movable frame (503).

5. The leak detection auxiliary device for a cylinder angle valve according to claim 4 is characterized in that: A sealing gasket is provided at the bottom of the slider (504); the slider (504) is slidably connected to the inside of the mounting tube (501); the diameter of the mounting tube (501) is smaller than the diameter of the air outlet tube (403); one end of the first spring (505) is fixedly connected to the slider (504), and the other end of the first spring (505) is fixedly connected to the mounting tube (501).

6. The leak detection auxiliary device for a cylinder angle valve according to claim 5, characterized in that: The top of the display panel (509) protrudes from the mounting cover (502), and the length from one end of the surface of the rotating frame (506) close to the first movable plate (507) to the rotating shaft is greater than the length from one end of the surface of the rotating frame (506) close to the second movable plate (508) to the rotating shaft.

7. The leak detection auxiliary device for a cylinder angle valve according to claim 6, characterized in that: The mounting structure (6) comprises a vertical pole (601) fixedly connected to the top of the gas outlet bag (403), the vertical pole (601) having a mounting plate (602) fixedly connected to the outer wall thereof, and a fixing frame (603) slidably connected thereto, the fixing frame (603) being fixedly connected to the hollow conveying frame (701), and the bottom of the fixing frame (603) being fixedly connected to a second spring (604) and a protective sleeve (605).

8. The leak detection auxiliary device for a cylinder angle valve according to claim 7, characterized in that: One end of the second spring (604) away from the fixing frame (603) is fixedly connected to the mounting plate (602), and the second spring (604) is sleeved on the outer wall of the vertical rod (601), and the second spring (604) is located inside the protective sleeve (605).

9. The leak detection auxiliary device for a cylinder angle valve according to claim 8, characterized in that: The adjustment structure (8) comprises a plurality of adjustment plates (801) fixedly connected to the outer wall of the mounting ring (706); a guide plate (802) is slidably connected inside the adjustment plate (801); a fastening bolt (803) for limiting and fixing the guide plate (802) is installed on the top of the guide plate (802); the rotating plate (707) is rotatably connected to the bottom of the guide plate (802); and a bolt for fixing the guide plate (802) is provided on the outer wall of the rotating plate (707).

10. The leak detection auxiliary device for a cylinder angle valve according to claim 1, characterized in that: At least one limiting plate (9) is slidably connected to the top of the testing platform (1), and the limiting plate (9) selectively fits with the steel cylinder body (3), thereby fixing the steel cylinder body (3).

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