Aerosol can on-line leak detection device

Abstract

The utility model discloses an online leak detection device for an aerosol can. The online leak detection device comprises a working plane, the leak detection device further comprises a first fixing plate, a second fixing plate, a supporting rod, a vacuum tank, an air pressure sensor, an air pump, an air pump pipe and a mounting plate, the first fixing plate is fixedly mounted on the working plane, the second fixing plate is mounted above the first fixing plate, and the supporting rod is fixedly mounted between the first fixing plate and the second fixing plate; according to the utility model, the inflated aerosol can is placed on the mounting plate, the push rod is pushed by the air cylinder to feed the mounting plate into the first sealing groove, at the moment, the vacuum can is clamped into the clamping groove of the can body, and the sealing ring is deformed under the extrusion force, so that the gap between the vacuum can and the mounting plate is filled, and the sealing performance is enhanced; the interior of the vacuum tank is vacuumized through the air pump and the air pump pipe and then kept for a period of time, the air pressure sensor is used for detecting whether the air pressure changes or not in the air pressure period to judge whether the aerosol tank leaks air, connection of the aerosol tank is not needed, operation is rapid, and air leakage caused when the aerosol tank is connected can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of aerosol can production, in particular to an on-line leakage detection device for an aerosol can. Background Art

[0002] Aerosol can leak detection is a crucial step in ensuring the safety and effectiveness of aerosol products. As a pressure vessel, an aerosol can must withstand a certain internal pressure. Any leak could lead to product failure or even a safety incident. Therefore, aerosol cans must undergo rigorous leak detection during production. Leak detection methods primarily include air pressure testing and water pressure testing.

[0003] The existing water pressure detection device has low detection efficiency and is generally used for manual or semi-automatic leak detection. It also needs to be dried after leak detection. The common air pressure detection device requires the device to be connected to the aerosol can, which is time-consuming to operate and easily causes the gas inside the aerosol can to escape during the connection, resulting in the total gas capacity of the aerosol can after the test not meeting the standard. Therefore, an aerosol can online leak detection device is needed to meet people's needs. Utility Model Content

[0004] The purpose of the utility model is to provide an on-line leak detection device for an aerosol can to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an online leak detection device for an aerosol can, comprising a working plane; the leak detection device also comprises a first fixed plate, a second fixed plate, a support rod, a vacuum tank, an air pressure sensor, an air pump, an air pump tube and a mounting plate, wherein the first fixed plate is fixedly mounted on the working plane, the second fixed plate is mounted above the first fixed plate, the support rod is fixedly mounted between the first fixed plate and the second fixed plate, the vacuum tank is fixedly mounted on the second fixed plate, the air pressure sensor is fixedly mounted in the vacuum tank, the air pump is mounted on the working plane, one end of the air pump tube is fixedly mounted on the air pump, and the mounting plate is mounted below the vacuum tank.

[0006] Preferably, the mounting plate is provided with a tank body slot and a placement slot, respectively, and the wall thickness of the vacuum tank is adapted to the width of the tank body slot.

[0007] Preferably, a second sealing groove and a third sealing groove are respectively opened on both sides of the tank body slot, and sealing rings are installed in the second sealing groove and the third sealing groove.

[0008] Preferably, a movable groove is opened on the mounting plate, a spring is installed in the movable groove, one end of the spring is fixedly connected to the inner wall of the movable groove, and the other end is fixedly connected to a clamping plate, and the clamping plate is slidably installed in the movable groove.

[0009] Preferably, a cylinder is fixedly mounted on the first fixing plate, a push rod is mounted on the cylinder, and the mounting plate is fixedly mounted on the push rod.

[0010] Preferably, a first sealing groove is formed on the second fixing plate, and the first sealing groove is adapted to the contour of the upper surface of the mounting plate.

[0011] Preferably, the other end of the air pump tube is fixedly connected to the vacuum tank, and the interior of the vacuum tank is communicated with the air pump through the air pump tube.

[0012] Preferably, a fixing plate is fixedly installed in the vacuum tank, and the air pressure sensor is installed on the fixing plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] (1) The utility model places the inflated aerosol can on the mounting plate, and pushes the push rod through the cylinder to send the mounting plate into the first sealing groove. At this time, the vacuum can is stuck in the slot of the can body, and the sealing ring is deformed under the extrusion force, thereby filling the gap between the vacuum can and the mounting plate, thereby enhancing the sealing performance. The inside of the vacuum can is evacuated by the air pump and the air pump tube and maintained for a period of time. The air pressure sensor is used to detect whether the air pressure changes during the period to determine whether the aerosol can is leaking. There is no need to connect the aerosol can, the operation is fast, and it can avoid deflation when connecting the aerosol can.

[0015] (2) When the aerosol can is placed in the placement slot by means of the clamping plate and the spring, the clamping plate clamps both sides of the aerosol can under the elastic force of the spring, thereby fixing the aerosol can and preventing the aerosol can from moving and colliding during movement or testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of an aerosol can online leak detection device proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the push rod and mounting plate of an aerosol can online leak detection device proposed by the utility model;

[0018] Figure 3 This is a schematic structural diagram of the mounting plate and vacuum tank of an aerosol can online leak detection device proposed by the utility model;

[0019] Figure 4 for Figure 3 A magnified view of point A;

[0020] Figure 5 This is a structural schematic diagram of a fixing plate and an air pressure sensor of an online leak detection device for an aerosol can proposed by the utility model.

[0021] In the figure: 1. Working plane; 2. First fixed plate; 3. Second fixed plate; 4. First sealing groove; 5. Cylinder; 6. Push rod; 7. Mounting plate; 8. Tank body slot; 9. Second sealing groove; 10. Third sealing groove; 11. Sealing ring; 12. Placement groove; 13. Movable groove; 14. Spring; 15. Card; 16. Support rod; 17. Air pump; 18. Air pump tube; 19. Vacuum tank; 20. Fixed plate; 21. Air pressure sensor. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 creative efforts are within the scope of protection of the present invention.

[0023] Example 1: Please refer to Figure 1-5 The utility model provides a technical solution: an online leak detection device for an aerosol can, comprising a working plane 1; in order to conveniently and quickly detect whether the aerosol can is leaking and prevent the normal internal gas of the aerosol can from escaping during detection, the leak detection device also includes a first fixing plate 2, a second fixing plate 3, a support rod 16, a vacuum tank 19, an air pressure sensor 21, an air pump 17, an air pump pipe 18 and a mounting plate 7. The first fixing plate 2 is fixedly mounted on the working plane 1, the second fixing plate 3 is mounted above the first fixing plate 2, the support rod 16 is fixedly mounted between the first fixing plate 2 and the second fixing plate 3, the vacuum tank 19 is fixedly mounted on the second fixing plate 3, the air pressure sensor 21 is fixedly mounted in the vacuum tank 19, the air pump 17 is mounted on the working plane 1, one end of the air pump pipe 18 is fixedly mounted on the air pump 17, and the mounting plate 7 is mounted below the vacuum tank 19. A detection environment is created by the air pump 17, the air pump pipe 18, the mounting plate 7 and the vacuum tank 19, and the air pressure in the vacuum tank 19 is detected by the air pressure sensor 21 to determine whether the aerosol can is leaking.

[0024] In order to realize the function of detecting air leakage, the mounting plate 7 is respectively provided with a tank body slot 8 and a placement slot 12. The wall thickness of the vacuum tank 19 is adapted to the width of the tank body slot 8. A second sealing groove 9 and a third sealing groove 10 are respectively provided on both sides of the tank body slot 8. A sealing ring 11 is installed in the second sealing groove 9 and the third sealing groove 10. A cylinder 5 is fixedly installed on the first fixing plate 2, and a push rod 6 is installed on the cylinder 5. The mounting plate 7 is fixedly installed on the push rod 6. A first sealing groove 4 is provided on the second fixing plate 3. The first sealing groove 4 is adapted to the upper surface contour of the mounting plate 7. The other end of the air pump tube 18 is fixedly connected to the vacuum tank 19. The inside of the vacuum tank 19 is communicated with the air pump 17 through the air pump tube 18. A fixing plate 20 is fixedly installed in the vacuum tank 19, and an air pressure sensor 21 is installed on the fixing plate 20. When in use, the aerosol can is first inflated to complete the filling, and the inflated aerosol can is placed on the mounting plate 7. Subsequently, the push rod 6 is pushed up by the cylinder 5 to send the mounting plate 7 into the first fixing plate 2 When the air pressure sensor 21 is connected to the external computer equipment, the air pressure sensor 21 is used to detect the air pressure. If the air pressure changes after vacuuming, it indicates that the aerosol can is leaking and releasing gas, which changes the air pressure in the vacuum can 19. If the air pressure remains unchanged, the aerosol can is not leaking. In order to ensure the accuracy of the data, the aerosol can can be placed in the test and tested directly without load to determine whether the seal between the vacuum can 19 and the mounting plate 7 is good. This method does not require the aerosol can to be connected to the external equipment for testing, which saves the connection and disassembly. The operation and detection are fast and can avoid air leakage when the aerosol can is connected.

[0025] Example 2: Figure 2-4 In order to fix the aerosol can, a movable groove 13 is opened on the mounting plate 7, and a spring 14 is installed in the movable groove 13. One end of the spring 14 is fixedly connected to the inner wall of the movable groove 13, and the other end is fixedly connected to a clamping plate 15. The clamping plate 15 is slidably installed in the movable groove 13. Through the clamping plate 15 and the spring 14, when the aerosol can is placed in the placement groove 12, the clamping plate 15 clamps both sides of the aerosol can under the elastic force of the spring 14, thereby fixing the aerosol can to prevent the aerosol can from moving and colliding during movement or detection. The remaining features are the same as those in Example 1.

[0026] The working principle is as follows: when in use, first inflate the aerosol can to complete the filling, place the inflated aerosol can on the mounting plate 7, then push the push rod 6 up through the cylinder 5 to send the mounting plate 7 into the first sealing groove 4, at this time the vacuum can 19 is stuck in the tank body slot 8, and the sealing ring 11 is deformed under the extrusion of the air pump tube 18, thereby filling the gap between the vacuum can 19 and the mounting plate 7 and enhancing the sealing performance. During the inspection, the inside of the vacuum can 19 is evacuated through the air pump 17 and the air pump tube 18, and then maintained for a period of time. The air pressure sensor 21 is connected to the external computer equipment, and the air pressure sensor 21 is used to detect the air pressure. If the air pressure changes after vacuuming, it indicates that the aerosol can is leaking and the released gas has changed. The air pressure in the vacuum tank 19 is measured. If the air pressure remains unchanged, the surface aerosol tank is not leaking. In order to ensure the accuracy of the data, the aerosol tank can be placed before the test, and the test can be carried out directly without load to determine whether the seal between the vacuum tank 19 and the mounting plate 7 is good. This method of testing does not require connecting the aerosol tank to external equipment, saving the steps of connection and disassembly, and the operation and detection are fast. It can also avoid deflation when connecting the aerosol tank. When the aerosol tank is placed in the placement groove 12 through the clamping plate 15 and the spring 14, the clamping plate 15 clamps both sides of the aerosol tank under the elastic force of the spring 14, thereby fixing the aerosol tank to avoid movement and collision of the aerosol tank during movement or testing.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An aerosol can online leak detection device, comprising a working plane (1); characterized in that: The leak detection device further comprises a first fixing plate (2), a second fixing plate (3), a support rod (16), a vacuum tank (19), an air pressure sensor (21), an air pump (17), an air pump tube (18) and a mounting plate (7), wherein the first fixing plate (2) is fixedly mounted on a working plane (1), the second fixing plate (3) is mounted above the first fixing plate (2), the support rod (16) is fixedly mounted between the first fixing plate (2) and the second fixing plate (3), the vacuum tank (19) is fixedly mounted on the second fixing plate (3), the air pressure sensor (21) is fixedly mounted in the vacuum tank (19), the air pump (17) is mounted on the working plane (1), one end of the air pump tube (18) is fixedly mounted on the air pump (17), and the mounting plate (7) is mounted below the vacuum tank (19).

2. The on-line leak detection device for an aerosol can according to claim 1, characterized in that: The mounting plate (7) is provided with a tank body slot (8) and a placement slot (12), respectively. The wall thickness of the vacuum tank (19) is adapted to the width of the tank body slot (8).

3. The on-line leak detection device for an aerosol can according to claim 2, characterized in that: A second sealing groove (9) and a third sealing groove (10) are respectively formed on both sides of the tank body clamping groove (8), and sealing rings (11) are installed in both the second sealing groove (9) and the third sealing groove (10).

4. The on-line leak detection device for an aerosol can according to claim 1, characterized in that: A movable groove (13) is formed on the mounting plate (7), a spring (14) is installed in the movable groove (13), one end of the spring (14) is fixedly connected to the inner wall of the movable groove (13), and the other end is fixedly connected to a clamping plate (15), and the clamping plate (15) is slidably installed in the movable groove (13).

5. The on-line leak detection device for an aerosol can according to claim 1, characterized in that: A cylinder (5) is fixedly mounted on the first fixing plate (2), a push rod (6) is mounted on the cylinder (5), and the mounting plate (7) is fixedly mounted on the push rod (6).

6. The on-line leak detection device for an aerosol can according to claim 1, characterized in that: A first sealing groove (4) is formed on the second fixing plate (3), and the first sealing groove (4) is adapted to the upper surface profile of the mounting plate (7).

7. The on-line leak detection device for an aerosol can according to claim 1, characterized in that: The other end of the air pump tube (18) is fixedly connected to the vacuum tank (19), and the interior of the vacuum tank (19) is communicated with the air pump (17) through the air pump tube (18).

8. The on-line leak detection device for an aerosol can according to claim 1, characterized in that: A fixing plate (20) is fixedly installed in the vacuum tank (19), and the air pressure sensor (21) is installed on the fixing plate (20).

Images