An aluminum pipe leakage detection device

Abstract

The utility model belongs to quality detection technical field, concretely is a kind of aluminium pipe leakage detection device, including rack, two first connecting plates are slidably arranged in the both sides of rack, two first connecting plates are fixedly provided with lifting plate between, one first connecting plate bottom is fixedly provided with the third connecting plate of L shape, lifting plate lower end surface is slidably provided with slide, third connecting plate bottom end is rotatably provided with multiple air pipes, slide bottom end is rotatably provided with plug, air pipe and plug are mutually close and are all provided with the sealing block of the conical ring shape on the outer ring surface, the outer circle surface of sealing block is provided with multiple sealing convex rings, air pipe is close to the side of plug and is provided with flat groove, flat groove outside is fixedly provided with vibration sensor, vibration sensor is close to flat groove one end and is fixedly provided with spring piece.The utility model is provided with spring piece, cleaning plate and drying groove etc. structure, reduce the problem that aluminium pipe is not cleaned and affects observation result when detecting, whether the incision can be detected flat simultaneously.

Description

Technical Field

[0001] This utility model belongs to the field of quality inspection technology, and in particular relates to an aluminum pipe leakage detection device. Background Technology

[0002] In existing technology, aluminum tubes are a type of non-ferrous metal tube, referring to hollow metal tubular materials made from pure aluminum or aluminum alloy through extrusion processing along their entire longitudinal length. They may have one or more closed through holes, with uniform wall thickness and cross-section, and are delivered in straight lines or coils. They are widely used in industries such as automobiles, ships, aerospace, aviation, electrical appliances, agriculture, electromechanical, and home furnishings. Before aluminum tubes leave the factory, leakage testing is required. This necessitates the use of aluminum tube leakage detection devices. To check for leaks in a batch of aluminum tubes, the tubes are typically submerged in water, air is blown into them, and then the surface of the submerged tubes is observed for bubbles.

[0003] Patent application number CN201520272119.4 discloses an aluminum pipe leakage detection device. The aluminum pipe leakage detection device includes a frame, with a glass water tank built into the bottom surface of the frame. A cylinder, a shut-off valve, and a pressure valve are provided on the upper surface of the frame. The cylinder is connected to a pressure plate through its telescopic shaft. The bottom of the pressure plate is provided with an air hole. An aluminum pipe support base is connected to the upper surface of the frame through a guide rod. The aluminum pipe support base is provided with an aluminum pipe support hole.

[0004] The existing technology using aluminum tube support bases and aluminum tube support holes has the advantages of being fast, simple, and convenient to use when inspecting aluminum tubes, but it still has many shortcomings in overall use.

[0005] Firstly, when existing devices detect leaks by inserting an aluminum tube underwater to allow air to escape, if there is dirt blocking the leak point on the aluminum tube, the air bubbles cannot escape from the leak, which can interfere with the detection effect.

[0006] Secondly, if the cut surface of the aluminum tube is not smooth when it leaves the factory, it will cause leakage at the joint in actual application. Existing devices usually cannot guarantee whether the cut surface of the aluminum tube is smooth after it leaves the factory when detecting leakage.

[0007] Finally, existing devices typically remove aluminum tubes directly after testing, leaving a large amount of water stains on the surface. Prolonged exposure to a humid environment can affect the quality of the aluminum tubes and also impact the hygiene of the testing area and the area where the aluminum tubes are placed. Utility Model Content

[0008] To overcome the shortcomings of existing technologies, this utility model provides an aluminum tube leakage detection device. This application solves the problem in existing technologies where uncleaned aluminum tubes affect observation results during detection by using a structure including a spring, vibration sensor, cleaning plate, and drying tank. Simultaneously, it can also detect whether the cut is smooth, preventing leakage at the cut. After detection, a drying structure is added to keep the aluminum tube dry.

[0009] To achieve the above objectives, this utility model provides the following technical solution: an aluminum pipe leakage detection device, comprising a frame, two first connecting plates slidably arranged on both sides of the frame, a lifting plate fixedly arranged between the two first connecting plates, an L-shaped third connecting plate fixedly arranged at the bottom of one of the first connecting plates, a sliding plate slidably arranged on the lower end face of the lifting plate, multiple vent pipes rotatably arranged at the bottom end of the third connecting plate, an air-blocking plug rotatably arranged at the bottom end of the sliding plate, a conical annular sealing block arranged on the outer ring surface of the vent pipes and the air-blocking plug, multiple sealing protrusions arranged on the outer circular surface of the sealing block, a flat groove arranged on the side of the vent pipe near the air-blocking plug, a vibration sensor fixedly arranged on the outer side of the flat groove, a spring sheet fixedly arranged on the end of the vibration sensor near the flat groove, and a water tank fixedly arranged at the bottom of the frame.

[0010] Preferably, a support plate is fixedly installed between the two sides of the frame above the lifting plate, a first cylinder is fixedly installed on the lower end face of the support plate, the output end of the first cylinder is fixedly installed with the lifting plate, guide bearings are fixedly installed at both ends of the support plate, and a first guide rod is fixedly installed on the upper end face of the lifting plate, the first guide rod is slidably installed with the guide bearing.

[0011] Preferably, a drying plate is fixedly disposed between the two first connecting plates, an air pump is fixedly disposed on the upper surface of the drying plate, a heater is fixedly disposed on the upper surface of the drying plate, a drying trough is disposed inside the drying plate, and a plurality of exhaust holes are disposed on the lower surface of the drying trough.

[0012] Preferably, a second connecting plate is fixedly provided on the lower end face of the first connecting plate on one side, and a threaded rod is rotatably provided between the second connecting plate and the third connecting plate. The threaded rod is threadedly connected to the slide plate. A second guide rod is also fixedly connected between the second connecting plate and the third connecting plate, and the second guide rod is slidably connected to the slide plate.

[0013] Preferably, the third connecting plate is rotatably provided with a rotating shaft above the vent pipe, and a belt drive structure is provided between the rotating shaft and the vent pipe.

[0014] Preferably, a cleaning plate is fixedly mounted on the bottom end face of the water tank via a connecting frame. A cleaning groove is provided at the upper end of the cleaning plate, and multiple cleaning protrusions and multiple through-holes are provided in the cleaning groove.

[0015] Preferably, a miniature vibrator is fixedly installed at the bottom of the water tank, and the miniature vibrator is used to vibrate the cleaning plate.

[0016] Preferably, a drain outlet is provided on one side of the water tank, and a water valve is provided at the outlet of the drain outlet.

[0017] In summary, compared with existing technologies, the beneficial effects of this solution are as follows: (1) This utility model has a structure including a micro vibrator, cleaning protrusions, sewage holes and drain pipes, which enables the device to clean the aluminum pipe before detecting leakage, so as to avoid dirt blocking the leakage location, affecting the test results, and keeping the aluminum pipe clean and tidy.

[0018] (2) This utility model, through the structure of vibration sensor, spring and rotating shaft, enables the device to detect whether the cut of aluminum tube is flat, while ensuring that the cut connection of aluminum tube will not leak due to unevenness during use, thus improving the overall quality of aluminum tube.

[0019] (3) This utility model, through the structure of exhaust hole, drying tank, heater and air pump, can dry the aluminum tube after the aluminum tube is detected to be leaking, avoids the impact on the environment when disassembling and placing it, and makes it easier to store the aluminum tube, avoids the aluminum tube being in a humid state for a long time, and improves the quality of the aluminum tube. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present invention.

[0021] Figure 2 This is the front view of the present invention.

[0022] Figure 3 This is a top view of the present invention.

[0023] Figure 4 This is a side view of the present invention.

[0024] Figure 5 for Figure 2 Sectional view along the AA direction.

[0025] Figure 6 for Figure 3 Sectional view along the BB direction.

[0026] Figure 7 for Figure 4 Sectional view along the CC direction.

[0027] Figure 8 for Figure 5 Enlarged view of a section at point D.

[0028] Figure 9 for Figure 7 Enlarged view of a section at point E in the middle.

[0029] In the diagram: Frame 10, Lifting groove 11, First connecting plate 12, Lifting plate 13, Slide groove 14, First cylinder 15, Support plate 16, Guide bearing 17, First guide rod 18, Drying plate 19, Drying trough 20, Exhaust hole 21, Air pump 22, Heater 23, Second connecting plate 24, Slide plate 25, Third connecting plate 26, Vent pipe 27, First motor 28, Rotating shaft 29, Belt 30, Sealing groove 31, Sealing block 32, Sealing protrusion ring 33, Flat groove 34, Vibration sensor 35, Spring 36, Air plug 37, Second guide rod 38, Threaded rod 39, Water tank 40, Drain hole 41, Cleaning protrusion 42, Miniature vibrator 43, Water valve 44, Drain pipe 45, Second motor 46, Sealing ring 47, Detection slot 48, Cleaning plate 49, Cleaning trough 50. Detailed Implementation

[0030] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0031] Reference Appendix Figure 1 Appendix Figure 2 Appendix Figure 5 Appendix Figure 6A device for detecting aluminum pipe leakage includes a frame 10, a water tank 40 fixedly installed inside the frame 10, two support plates 16 fixedly installed between the two sides of the upper end of the frame 10, a first cylinder 15 fixedly installed on the lower end face of the support plate 16, a lifting plate 13 fixedly installed at the output end of the first cylinder 15, guide bearings 17 fixedly installed at both ends of the support plate 16, a first guide rod 18 slidably installed inside the guide bearing 17, the lower end face of the first guide rod 18 fixedly connected to the lifting plate 13, a sliding groove 14 provided on the lower end face of the lifting plate 13, a sliding plate 25 slidably installed in the sliding groove 14, a first connecting plate 12 fixedly installed at both ends of the lifting plate 13, a lifting groove 11 provided on the side of the frame 10 near the first connecting plate 12, the lifting groove 11 slidably connected to the first connecting plate 12, and one of the first connecting plates 12 is connected to the first connecting plate 12. A second connecting plate 24 is fixedly installed on the lower end face of the connecting plate 12. A third connecting plate 26 in an L-shape is fixedly installed on one side of the other first connecting plate 12. A threaded rod 39 is rotatably installed between the second connecting plate 24 and the third connecting plate 26. The threaded rod 39 is threadedly connected to the slide plate 25 to drive the slide plate 25 to move. A second guide rod 38 is also fixedly connected between the second connecting plate 24 and the third connecting plate 26. The second guide rod 38 is slidably connected to the slide plate 25. A second motor 46 is fixedly installed on the outside of the second connecting plate 24 at the end of the threaded rod 39 near the second connecting plate 24. Two vent pipes 27 are rotatably installed at the lower end of the third connecting plate 26. A hose is connected to the side of the vent pipe 27 away from the slide plate 25. Two sets of air plugs 37 are rotatably installed on the slide plate 25 at the corresponding positions of the vent pipes 27.

[0032] Specifically, when the aluminum tubes produced in the factory need to be tested for leakage, the second motor 46 can be started according to the length of the aluminum tube to be tested. The second motor 46 drives the threaded rod 39 to rotate, thereby sliding the slide plate 25 to an appropriate position, so that the distance between the air plug 37 and the vent pipe 27 is longer than the length of the aluminum tube. During this process, the second guide rod 38 can play a guiding role to make the sliding of the slide plate 25 smooth. At this time, the aluminum tube is put on the outside of the vent pipe 27, and then the position of the slide plate 25 is moved again so that the air plug 37 is embedded in the aluminum tube, so that the aluminum tube can be fixed between the third connecting plate 26 and the slide plate 25 and form a sealed state between the two ends. Then, the first cylinder 15 is activated. The output end of the first cylinder 15 extends downward, which moves the lifting plate 13 and the first connecting plate 12 downward together. This simultaneously causes the aluminum tube between the sliding plate 25 and the third connecting plate 26 to extend into the water tank 40 below the water surface. Then, high-pressure gas is injected into the aluminum tube through the hose connected to the vent pipe 27. If there is a leak in the aluminum tube, the gas will be discharged outwards from the leak under the action of air pressure. Since the outside of the aluminum tube is filled with water at this time, bubbles will be generated when the gas is discharged outwards. The staff can determine whether there is a leak in the aluminum tube by observing whether the bubbles are generated. At the same time, the specific location of the leak can be determined by the location of the bubbles.

[0033] It should be noted that the pressure of the gas discharged into the aluminum tube needs to be considered based on the specific quality and size of the aluminum tube and the sealing condition of the equipment, which will not be elaborated on here.

[0034] More specifically, due to the arrangement of the guide bearing 17, the first guide rod 18 fixedly arranged on the upper end face of the lifting plate 13 will slide inside the guide bearing 17 when the lifting plate 13 moves up and down, which can make the lifting plate 13 move more smoothly when it moves up and down.

[0035] Further, see attached document. Figure 8 Both the vent pipe 27 and the air plug 37 are provided with a sealing groove 31 at one end of the aluminum pipe. A sealing block 32 is connected to the outer surface of the sealing groove 31. The sealing block 32 is in the shape of a conical ring. The end of the sealing block 32 closer to the frame 10 is slightly larger than the end farther away from the frame 10. Multiple sealing protrusions 33 are provided on the outer surface of the sealing block 32.

[0036] Specifically, when the aluminum tube is fitted onto the surface of the vent pipe 27 and the air plug 37, the sealing block 32 will seal the aluminum tube, and multiple sealing protrusions 33 will further seal the aluminum tube. Since the end of the sealing block 32 closer to the frame 10 is slightly larger than the end farther from the frame 10, it can not only act as a guide during the sealing insertion process, but also better adapt to the aluminum tube hole wall with a certain slight diameter difference due to its conical surface, thereby improving the sealing effect on the aluminum tube and preventing some aluminum tubes from having a larger internal radius, which would affect the sealing effect.

[0037] Furthermore, see the attached document. Figure 4 and attached Figure 6 A rotating shaft 29 is rotatably mounted on the upper center of the two vent pipes 27 on the end face of the third connecting plate 26. A first motor 28 is fixedly mounted on the side of the third connecting plate 26 near the slide plate 25. The output end of the first motor 28 is fixedly connected to the rotating shaft 29. A belt 30 is driven by a pulley on the surface of the two vent pipes 27 and the rotating shaft 29 on the side of the third connecting plate 26 away from the slide plate 25. A leveling groove 34 is provided on the side of the third connecting plate 26 near the slide plate 25 at the two vent pipes 27. A detection slot 48 is provided on the upper side of the leveling groove 34. A waterproof vibration sensor 35 is fixedly mounted in the detection slot 48 of the third connecting plate 26. A spring piece 36 is fixedly mounted on the lower end face of the vibration sensor 35. When the aluminum tube is inserted outside the vent pipe 27, one end of the aluminum tube will abut against the spring piece 36.

[0038] Specifically, when the aluminum tube is fitted between the vent pipe 27 and the air plug 37, the first motor 28 can be started. The output end of the first motor 28 drives the rotating shaft 29 to rotate. At this time, the rotating shaft 29 will drive the two vent pipes 27 to rotate through the transmission of the belt 30, so that the aluminum tube will rotate continuously. Since one end of the aluminum tube is in contact with the inside of the flat groove 34, if the bottom cut of the aluminum tube is not flat when the aluminum tube rotates, the protruding part of the bottom of the aluminum tube will strike the spring 36 in each rotation cycle, so that the vibration sensor 35 can detect the vibration of the spring 36, thereby judging whether the bottom of the aluminum tube is flat, thus detecting the defective products and improving the overall quality of the aluminum tube.

[0039] It should be noted that the tightness of the belt 30 connecting the two vent pipes 27 and the rotating shaft 29 can be adjusted as needed. If necessary, a tensioning pulley or other equipment can be installed to increase the transmission efficiency. Since belt drive is a conventional existing technology, it will not be elaborated on here.

[0040] Further, see attached document. Figure 1 Appendix Figure 2 and attached Figure 8 A drain outlet 45 is provided on one side of the water tank 40. A water valve 44 is connected to the outlet of the drain outlet 45. A cleaning plate 49 is fixedly installed inside the water tank 40 by a fixed bracket. A cleaning groove 50 is provided on the upper end of the cleaning plate 49. Multiple through-holes 41 are provided inside the cleaning groove 50. The multiple drain holes 41 are inclined. Multiple cleaning protrusions 42 made of elastic material are provided inside the cleaning groove 50. The main bodies of two micro vibrators 43 are fixedly installed at the bottom of the water tank 40. The vibration end of the micro vibrator 43 is waterproofed and then connected to the bottom end face of the cleaning plate 49.

[0041] Specifically, before detecting leakage in the aluminum pipe, the aluminum pipe is pressed into the water tank 40 and placed against the cleaning groove 50 on the surface of the cleaning plate. Then, the aluminum pipe is slowly rotated so that every part of the aluminum pipe surface can contact the surface of the cleaning groove 50. At the same time, the micro vibrator 43 is turned on to make the cleaning plate 49 vibrate slightly. Since the cleaning groove 50 is equipped with multiple cleaning protrusions 42 made of elastic material, the cleaning protrusions 42 will shake off dirt and dust from the surface of the aluminum pipe, so that the surface of the aluminum pipe is clean and tidy during the test, avoiding dirt and dust from clogging the leakage point and affecting the judgment of the staff during the test. At the same time, it can also achieve the purpose of cleaning the aluminum pipe.

[0042] Furthermore, dirt and dust shaken off the surface of the aluminum tube will be discharged through multiple through-holes 41 inside the cleaning plate 49, preventing dirt from accumulating on the surface of the cleaning tank 50 and affecting subsequent cleaning. After cleaning for a period of time, if the water inside the water tank 40 becomes turbid, it will affect the judgment of the staff during the test. At this time, the water valve 44 can be opened to drain the turbid liquid inside the water tank 40. After draining the water inside the water tank 40, the staff can refill the water tank 40 to carry out subsequent tests.

[0043] Furthermore, see the attached document. Figure 6 Appendix Figure 7 and attached Figure 9 A drying plate 19 is fixedly installed between the first connecting plates 12 on both sides, on the upper side of the slide plate 25 and the third connecting plate 26. A drying trough 20 is provided inside the drying plate 19. Multiple exhaust holes 21 are provided on the lower end face of the drying trough 20. An air pump 22 and a heater 23 are fixedly installed on the upper end face of the drying trough 20. A hose is provided connecting the air outlet of the air pump 22 to the air inlet of the heater 23. A hose is provided connecting the air outlet of the heater 23 to the air inlet on the upper end face of the drying plate 19.

[0044] Specifically, after the aluminum tube leak detection is completed, the aluminum tube is moved to the initial position. At this time, the air pump 22 and heater 23 are started. After the gas is heated by the heater 23, it is blown into the drying tank 20. Then, the hot air is blown evenly to the upper side of the aluminum tube through multiple exhaust holes 21 inside the tank, thereby drying the water stains on the surface of the aluminum tube. During this period, the aluminum tube is continuously rotated so that the circumference of the aluminum tube can be dried. After drying, the aluminum tube can be removed and prepared for the next batch of testing.

[0045] The first cylinder 15, air pump 22, heater 23, first motor 28, micro vibrator 43, and second motor 46 of the aluminum pipe leakage detection device in this utility model are all purchased from the market. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0046] The specification and claims use certain terms to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0047] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0048] The foregoing description presents and describes several preferred embodiments of this application. However, as mentioned above, it should be understood that this application is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the application concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this application should be within the protection scope of the appended claims.

Claims

1. An aluminum pipe leakage detection device, comprising a frame (10), characterized in that, Two first connecting plates (12) are slidably arranged on both sides of the frame (10), and a lifting plate (13) is fixedly arranged between the two first connecting plates (12). A third connecting plate (26) in an L shape is fixedly arranged at the bottom of one of the first connecting plates (12), and a sliding plate (25) is slidably arranged on the lower end surface of the lifting plate (13). The bottom end of the third connecting plate (26) is rotatably provided with multiple vent pipes (27), the bottom end of the slide plate (25) is rotatably provided with an air-blocking plug (37), the outer ring surfaces of the vent pipes (27) and the air-blocking plug (37) are provided with conical ring-shaped sealing blocks (32), the outer circular surface of the sealing block (32) is provided with multiple sealing protrusions (33), the side of the vent pipe (27) near the air-blocking plug (37) is provided with a flat groove (34), the outside of the flat groove (34) is fixedly provided with a vibration sensor (35), the end of the vibration sensor (35) near the flat groove (34) is fixedly provided with a spring piece (36), and the bottom of the frame (10) is fixedly provided with a water tank (40).

2. The aluminum pipe leakage detection device according to claim 1, characterized in that, A support plate (16) is fixedly installed between the two sides of the frame (10) above the lifting plate (13). A first cylinder (15) is fixedly installed on the lower end face of the support plate (16). The output end of the first cylinder (15) is fixedly installed with the lifting plate (13). Guide bearings (17) are fixedly installed at both ends of the support plate (16). A first guide rod (18) is fixedly installed on the upper end face of the lifting plate (13). The first guide rod (18) is slidably installed with the guide bearing (17).

3. The aluminum pipe leakage detection device according to claim 1, characterized in that, A drying plate (19) is fixedly arranged between the two first connecting plates (12). An air pump (22) is fixedly arranged on the upper end face of the drying plate (19). A heater (23) is fixedly arranged on the upper end face of the drying plate (19). A drying trough (20) is arranged inside the drying plate (19). A plurality of exhaust holes (21) are arranged on the lower end face of the drying trough (20).

4. The aluminum pipe leakage detection device according to claim 1, characterized in that, A second connecting plate (24) is fixedly provided on the lower end face of the first connecting plate (12) on one side. A threaded rod (39) is rotatably provided between the second connecting plate (24) and the third connecting plate (26). The threaded rod (39) is threadedly connected to the slide plate (25). A second guide rod (38) is also fixedly connected between the second connecting plate (24) and the third connecting plate (26). The second guide rod (38) is slidably connected to the slide plate (25).

5. The aluminum pipe leakage detection device according to claim 4, characterized in that, The third connecting plate (26) is rotatably provided with a rotating shaft (29) above the vent pipe (27), and a belt drive structure is provided between the rotating shaft (29) and the vent pipe (27).

6. The aluminum pipe leakage detection device according to claim 1, characterized in that, A cleaning plate (49) is fixedly installed on the bottom end face of the water tank (40) by a connecting frame. A cleaning groove (50) is provided on the upper end of the cleaning plate (49). Multiple cleaning protrusions (42) are provided in the cleaning groove (50). Multiple through drain holes (41) are provided in the cleaning groove (50).

7. The aluminum pipe leakage detection device according to claim 6, characterized in that, A micro vibrator (43) is fixedly installed at the bottom of the water tank (40), and the micro vibrator (43) is used to vibrate the cleaning plate (49).

8. The aluminum pipe leakage detection device according to claim 6, characterized in that, A drain outlet (45) is provided on one side of the water tank (40), and a water valve (44) is provided at the outlet of the drain outlet (45).

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