Aerosol can pressure resistance detection device

Abstract

The utility model relates to the technical field of container detection, and discloses an aerosol can pressure resistance detection device which comprises a protection box, and a liquid crystal controller is fixedly installed on the outer surface of the protection box. According to the pressure resistance detection device for the spray can, through the cooperation of the liquid crystal controller, the connecting frame, the displacement sensor, the first spring and the pressure sensor, the pressure change and the displacement change of the spray can in the pressing process can be accurately measured under the action of the displacement sensor and the pressure sensor; therefore, comprehensive and accurate evaluation of the pressure resistance of the aerosol can is achieved, local defects of the aerosol can can be detected, missing detection is avoided, the quality and reliability of the aerosol can are improved, the liquid crystal controller can collect data of the displacement sensor and the pressure sensor in real time and organize and display the detection data on a screen, manual operation can be reduced, and the detection efficiency is improved. The pressure resistance detection of the aerosol can can be quickly completed, and the working efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of container testing technology, specifically a pressure resistance testing device for aerosol cans. Background Technology

[0002] As a common packaging container in daily life, the pressure resistance of aerosol cans directly affects the safety and reliability of products. Pressure resistance is a crucial indicator of aerosol can safety and reliability. Pressure testing devices for aerosol cans often employ simple pressure testing methods, such as pressurizing the can and observing for leaks or deformation to determine its pressure resistance. If the pressure resistance of the aerosol can is insufficient, leaks or even explosions may occur during use, posing safety hazards to users.

[0003] Currently, traditional methods for testing the pressure resistance of aerosol cans involve pressurizing the can and using a crude pressure gauge to monitor pressure changes. This method cannot accurately capture the minute pressure fluctuations that occur during the pressurization process, resulting in limited testing accuracy. Furthermore, the test results often rely on the operator's visual observation and experience, which is highly subjective and makes it difficult to guarantee the consistency and accuracy of the test. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides a pressure resistance testing device for spray cans, which has the advantages of automatically and accurately measuring pressure and displacement changes of spray cans during the pressurization process, thus solving the problems mentioned in the background technology.

[0005] To achieve the above objectives, this application provides the following technical solution: a pressure resistance testing device for a spray can, comprising a protective box, an LCD controller fixedly mounted on the outer surface of the protective box, a displacement detection assembly with four circumferential vibration arrays on the inner wall of the protective box, the displacement detection assembly comprising two telescopic rods fixedly connected to the inner wall of the protective box, a connecting frame fixedly connected to the output end of each of the two telescopic rods, a displacement sensor fixedly mounted on the outer surface of each connecting frame, a first spring sleeved on the outer surface of each of the two telescopic rods, one end of each of the two first springs fixedly connected to the outer surface of the connecting frame, a compression plate slidably connected to the inner wall of the connecting frame, a spray can body placed inside the protective box, a sealing cover plate provided above the protective box, a sealing mounting plate provided below the sealing cover plate, a pressure sensor fixedly connected to the inner wall of the sealing mounting plate, a jet nozzle fixedly connected to the inner wall of the sealing mounting plate, a high-pressure air pump fixedly connected to the upper surface of the sealing cover plate, and the output end of the high-pressure air pump connected to the inner wall of the jet nozzle via a pipe.

[0006] Through the above scheme, by setting up the coordinated action between the LCD controller, connecting frame, displacement sensor, first spring, and pressure sensor, the pressure and displacement changes of the spray can during the pressurization process can be accurately measured under the action of the displacement sensor and pressure sensor. This enables a comprehensive and accurate assessment of the pressure resistance performance of the spray can, and can also detect local defects in the spray can, avoiding missed detections and improving the quality and reliability of the spray can. The LCD controller can collect data from the displacement sensor and pressure sensor in real time and display the detection data on the screen, thereby reducing manual operation, enabling the rapid completion of the pressure resistance test of the spray can, and improving work efficiency.

[0007] Furthermore, a first pressure relief pipe is fixedly connected to the inner wall of the sealing mounting plate, and a first solenoid valve is provided on the outer surface of the first pressure relief pipe.

[0008] The above scheme, through the function of setting a first pressure relief pipe and a first solenoid valve, allows the pressure inside the spray can to be discharged to the outside through the first pressure relief pipe after the test is completed, thereby quickly completing the pressure relief work.

[0009] Furthermore, a sealing groove is provided on the upper surface of the protective box, and a sealing gasket is fixedly connected to the bottom surface of the sealing cover. The outer dimensions of the sealing gasket are adapted to the inner wall dimensions of the sealing groove.

[0010] By implementing the above solution and using sealing grooves and gaskets, the sealing performance of the protective box can be increased, thereby preventing pressure leakage and ensuring that the pressure discharged from the spray can body is stably discharged from the second pressure relief pipe, which can improve the safety and reliability of the test.

[0011] Furthermore, a hydraulic cylinder is fixedly embedded in the upper surface of the sealing cover plate, and the output end of the hydraulic cylinder is fixedly connected to the upper surface of the sealing mounting plate.

[0012] The above solution utilizes a hydraulic cylinder to push the sealing mounting plate to press and seal the opening above the spray can body, ensuring the sealing performance of the spray can body during pressure testing.

[0013] Furthermore, the bottom surface of the sealing cover is fixedly connected to four rectangular array of guide rods, and the outer surfaces of the four guide rods are slidably connected to the inner wall of the protective box.

[0014] The above solution, by setting a guide rod, can limit and guide the movement of the sealing cover, ensuring that the sealing cover and sealing mounting plate can be raised and lowered vertically.

[0015] Furthermore, the outer surface of the protective box is provided with two sets of symmetrical limiting components, the inner wall of the protective box is fixedly connected with a second pressure relief pipe, and the outer surface of the second pressure relief pipe is fixedly connected with a second solenoid valve.

[0016] With the above scheme, by setting up a second pressure relief pipe and a second solenoid valve, when the pressure inside the protective box changes and reaches the preset threshold of the second solenoid valve, the second solenoid valve opens, and the pressure inside the protective box is discharged from the second pressure relief pipe, thereby improving the safety of the monitoring device.

[0017] Furthermore, the limiting component includes a component frame and an insert block. The outer surface of the component frame is fixedly connected to the outer surface of the protective box, and the upper surface of the insert block is fixedly connected to the bottom surface of the sealing cover. The outer surface of the insert block has two symmetrical slots, and the outer surface of the component frame has two sets of symmetrical sliding grooves. The inner walls of the two sets of sliding grooves are slidably connected to limiting blocks, and the outer surfaces of the two limiting blocks are inserted into the inner walls of the slots.

[0018] The above scheme, by setting the insertion block and the limiting block, can limit the sealing cover plate and ensure a stable and sealed connection between the sealing cover plate and the protective box.

[0019] Furthermore, a second spring is fixedly connected to one side of each of the two limiting blocks that are far apart from each other, and the end of the second spring that is far from the outer surface of the limiting block is fixedly connected to the inner wall of the component frame.

[0020] By implementing the above solution and utilizing the second spring, the limiting block can be continuously pushed to move, thereby ensuring that the limiting block is always engaged with the insert block, thus ensuring the connection stability between the sealing cover and the protective box.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0022] This device for testing the pressure resistance of spray cans, through the coordinated action of an LCD controller, connecting frame, displacement sensor, first spring, and pressure sensor, can accurately measure the pressure and displacement changes of the spray can during the pressurization process. This enables a comprehensive and accurate assessment of the pressure resistance performance of the spray can, and can also detect local defects in the spray can, avoiding missed detections and improving the quality and reliability of the spray can. The LCD controller can collect data from the displacement and pressure sensors in real time and display the test data on the screen, thereby reducing manual operation, enabling rapid completion of the pressure resistance test of the spray can, and improving work efficiency. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the entire application;

[0024] Figure 2 This is a cross-sectional view of the overall structure of this application;

[0025] Figure 3This is a three-dimensional structural diagram of the sealing mounting plate of this application;

[0026] Figure 4 This is a three-dimensional structural diagram of the displacement detection component of this application;

[0027] Figure 5 This is a three-dimensional structural diagram of the limiting component of this application.

[0028] In the picture:

[0029] 1. Protective box; 2. LCD controller; 3. Displacement detection component; 301. Telescopic rod; 302. Connecting frame; 303. Displacement sensor; 304. First spring; 305. Extrusion plate; 4. Spray can body; 5. Sealing cover plate; 6. Sealing mounting plate; 7. Pressure sensor; 8. Jet nozzle; 9. High-pressure air pump; 10. First pressure relief pipe; 11. First solenoid valve; 12. Sealing groove; 13. Sealing gasket; 14. Hydraulic cylinder; 15. Guide rod; 16. Limiting component; 1601. Component frame; 1602. Insert block; 1603. Slot; 1604. Slide groove; 1605. Limiting block; 1606. Second spring; 17. Second pressure relief pipe; 18. Second solenoid valve. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0031] Please see Figure 1 , Figure 3 and Figure 4This embodiment of a spray can pressure testing device includes a protective box 1. A liquid crystal controller 2 is fixedly installed on the outer surface of the protective box 1. The protective box 1 enhances the safety of pressure testing on the spray can body 4. The inner wall of the protective box 1 is equipped with a displacement detection assembly 3 consisting of four circumferential vibration arrays. Each displacement detection assembly 3 includes two telescopic rods 301 fixedly connected to the inner wall of the protective box 1. A connecting frame 302 is fixedly connected to the output end of each of the two telescopic rods 301. Displacement sensors 303 are fixedly installed on the outer surface of each connecting frame 302. The displacement sensors 303 are characterized by high sensitivity, high precision, and good stability, accurately reflecting the internal pressure of the spray can body 4. A first spring 304 is sleeved on the outer surface of each of the two telescopic rods 301. One end of each of the two first springs 304 is fixedly connected to the outer surface of the connecting frame 302. A compression plate 305 is slidably connected to the inner wall of the connecting frame 302. The spray can body 4 is placed inside the protective box 1. A sealing cover 5 is provided above the protective box 1, and a sealing mounting plate 6 is provided below the sealing cover 5. The inner surface of the sealing mounting plate 6... A pressure sensor 7 is fixedly connected to the wall. The pressure sensor 7 can accurately measure the minute displacement of the spray can body 4 during the pressure process, thereby achieving an accurate assessment of the deformation of the spray can body 4. An air nozzle 8 is fixedly connected to the inner wall of the sealing mounting plate 6, and a high-pressure air pump 9 is fixedly connected to the upper surface of the sealing cover plate 5. The output end of the high-pressure air pump 9 is connected to the inner wall of the air nozzle 8 through a pipe. Through the cooperation of the LCD controller 2, the connecting frame 302, the displacement sensor 303, the first spring 304, and the pressure sensor 7, the pressure change and displacement change of the spray can during the pressure process can be accurately measured under the action of the displacement sensor 303 and the pressure sensor 7, thereby achieving a comprehensive and accurate assessment of the pressure resistance performance of the spray can. It can also detect local defects of the spray can, avoid missed detection, and improve the quality and reliability of the spray can. The LCD controller 2 can collect data from the displacement sensor 303 and the pressure sensor 7 in real time and organize and display the detection data on the screen, thereby reducing manual operation, quickly completing the pressure resistance test of the spray can, and improving work efficiency.

[0032] Please see Figure 1 , Figure 2 and Figure 3A first pressure relief pipe 10 is fixedly connected to the inner wall of the sealing mounting plate 6. A first solenoid valve 11 is provided on the outer surface of the first pressure relief pipe 10. By setting the first pressure relief pipe 10 and the first solenoid valve 11, the pressure inside the spray can body 4 can be discharged to the outside through the first pressure relief pipe 10 after the test is completed, thereby quickly completing the pressure relief work. A sealing groove 12 is opened on the upper surface of the protective box 1. A sealing gasket 13 is fixedly connected to the bottom surface of the sealing cover plate 5. The outer dimensions of the sealing gasket 13 are adapted to the inner wall dimensions of the sealing groove 12. By setting the sealing groove 12 and the sealing gasket 13, the sealing performance of the protective box 1 can be increased, thereby avoiding pressure leakage and ensuring that the pressure discharged from the spray can body 4 is stably discharged from the second pressure relief pipe 17, which can improve the safety and reliability of the test. A hydraulic cylinder 14 is fixedly embedded on the upper surface of the sealing cover plate 5. The output end of the hydraulic cylinder 14 is fixedly connected to the upper surface of the sealing mounting plate 6. By setting the hydraulic cylinder 14, the pressure inside the spray can body 4 can be discharged to the outside through the first pressure relief pipe 10. The device can push the sealing mounting plate 6 to squeeze and seal the opening above the spray can body 4, ensuring the sealing performance of the spray can body 4 during pressure testing. The bottom surface of the sealing cover plate 5 is fixedly connected to four rectangular array guide rods 15. The outer surfaces of the four guide rods 15 are slidably connected to the inner wall of the protective box 1. By setting the guide rods 15, the movement of the sealing cover plate 5 can be limited and guided, ensuring that the sealing cover plate 5 and the sealing mounting plate 6 rise and fall vertically. The outer surface of the protective box 1 is provided with two sets of symmetrical limiting components 16. The inner wall of the protective box 1 is fixedly connected to a second pressure relief pipe 17. The outer surface of the second pressure relief pipe 17 is fixedly connected to a second solenoid valve 18. By setting the second pressure relief pipe 17 and the second solenoid valve 18, when the internal pressure of the protective box 1 changes and reaches the preset threshold of the second solenoid valve 18, the second solenoid valve 18 opens, and the pressure inside the protective box 1 is discharged from the second pressure relief pipe 17, thereby improving the safety of the monitoring device.

[0033] Please see Figure 1 and Figure 5The limiting component 16 includes a component frame 1601 and an insert block 1602. The outer surface of the component frame 1601 is fixedly connected to the outer surface of the protective box 1. The upper surface of the insert block 1602 is fixedly connected to the bottom surface of the sealing cover plate 5. The outer surface of the insert block 1602 has two symmetrical slots 1603. The outer surface of the component frame 1601 has two sets of symmetrical sliding grooves 1604. The inner walls of the two sets of sliding grooves 1604 are slidably connected to limiting blocks 1605. The outer surfaces of the two limiting blocks 1605 are inserted into the inner walls of the slots 1603. By setting the insert block 1602, the limiting... The function of block 1605 is to limit the sealing cover 5, ensuring a stable and sealed connection between the sealing cover 5 and the protective box 1. The two limiting blocks 1605 are fixedly connected to the side of each other that is far apart from each other, and the end of the second spring 1606 that is far away from the outer surface of the limiting block 1605 is fixedly connected to the inner wall of the component frame 1601. By setting the function of the second spring 1606, the limiting block 1605 can be pushed to move at all times, thereby ensuring that the limiting block 1605 is always engaged with the insert block 1602, thus ensuring the connection stability between the sealing cover 5 and the protective box 1.

[0034] This embodiment of a spray can pressure resistance testing device, through the coordinated action of an LCD controller 2, a connecting frame 302, a displacement sensor 303, a first spring 304, and a pressure sensor 7, enables precise measurement of pressure and displacement changes of the spray can during the pressure process under the action of the displacement sensor 303 and the pressure sensor 7. This allows for a comprehensive and accurate assessment of the pressure resistance performance of the spray can, and also enables the detection of local defects in the spray can, avoiding missed detections and improving the quality and reliability of the spray can. The LCD controller 2 can collect data from the displacement sensor 303 and the pressure sensor 7 in real time and display the test data on the screen, thereby reducing manual operation, enabling rapid completion of the pressure resistance test of the spray can, and improving work efficiency.

[0035] It should be noted that the LCD controller 2 can collect pressure and displacement data from the pressure sensor 7 and displacement sensor 303 in real time. The collected data is analyzed, organized, and displayed on the screen on the surface of the LCD controller 2, thereby automating pressure detection. Furthermore, the LCD controller 2 can control the high-pressure air pump 9, the first solenoid valve 11, the hydraulic cylinder 14, and the second solenoid valve 18 via wireless connection. As a result, operators can easily adjust detection parameters, view detection results, or perform other related operations, thereby improving work efficiency.

[0036] The working principle of the above embodiment is as follows: When performing pressure performance testing on the spray can body 4, the extrusion plate 305 is first replaced according to the size of the spray can body 4. Then, the spray can body 4 is placed inside the protective box 1. Under the push of the first spring 304, the connecting frame 302 and the extrusion plate 305 can be moved, thereby clamping and fixing the spray can body 4 to ensure the stability of the test. Then, when the sealing cover 5 moves downward to connect with the protective box 1, the four guide rods 15 can limit and guide the movement of the sealing cover 5 to ensure that the sealing cover 5 moves stably to connect with the protective box 1. Then, the sealing groove 12 and the sealing gasket 13 can increase the sealing performance of the protective box 1, thereby avoiding pressure leakage. Finally, the hydraulic cylinder 14 is activated to push the sealing mounting plate 6 to squeeze and seal the opening above the spray can body 4. To ensure the airtightness of the pressure performance test of the spray can body 4, the jet nozzle 8 and pressure sensor 7 are pushed into the interior of the spray can body 4. Then, the high-pressure air pump 9 is started to inject gas into the interior of the spray can body 4 through the jet nozzle 8. At this time, the pressure inside the spray can body 4 is monitored in real time under the detection of pressure sensor 7. When a bulge or gap appears in the spray can body 4, the bulge or leaked compressed gas will push the extrusion plate 305 to move slightly. At this time, displacement sensor 303 monitors the movement data in real time. Then, the LCD controller 2 can collect the pressure data and displacement data of pressure sensor 7 and displacement sensor 303 in real time, and the collected data is analyzed, sorted and displayed on the display screen on the surface of the LCD controller 2, thereby realizing the automation of pressure detection.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0038] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pressure resistance testing device for spray cans, comprising a protective housing (1), characterized in that: A liquid crystal controller (2) is fixedly installed on the outer surface of the protective box (1). The inner wall of the protective box (1) is provided with a displacement detection assembly (3) of four circular vibration arrays. The displacement detection assembly (3) includes two telescopic rods (301) fixedly connected to the inner wall of the protective box (1). The output ends of the two telescopic rods (301) are fixedly connected to a connecting frame (302). The outer surface of the connecting frame (302) is fixedly installed with a displacement sensor (303). The outer surface of the two telescopic rods (301) is sleeved with a first spring (304). One end of the two first springs (304) is fixedly connected to the connecting frame (302). On the outer surface of 02), the inner wall of the connecting frame (302) is slidably connected to the extrusion plate (305). The inside of the protective box (1) is a spray can body (4). A sealing cover plate (5) is provided above the protective box (1). A sealing mounting plate (6) is provided below the sealing cover plate (5). A pressure sensor (7) is fixedly connected to the inner wall of the sealing mounting plate (6). A jet nozzle (8) is fixedly connected to the inner wall of the sealing mounting plate (6). A high-pressure air pump (9) is fixedly connected to the upper surface of the sealing cover plate (5). The output end of the high-pressure air pump (9) is connected to the inner wall of the jet nozzle (8) through a pipe.

2. The pressure resistance testing device for a spray can according to claim 1, characterized in that: The inner wall of the sealing mounting plate (6) is fixedly connected to a first pressure relief pipe (10), and the outer surface of the first pressure relief pipe (10) is provided with a first solenoid valve (11).

3. The pressure resistance testing device for a spray can according to claim 1, characterized in that: The upper surface of the protective box (1) is provided with a sealing groove (12), and the bottom surface of the sealing cover (5) is fixedly connected with a sealing gasket (13). The outer dimensions of the sealing gasket (13) are adapted to the inner wall dimensions of the sealing groove (12).

4. The pressure resistance testing device for a spray can according to claim 1, characterized in that: A hydraulic cylinder (14) is fixedly embedded on the upper surface of the sealing cover plate (5), and the output end of the hydraulic cylinder (14) is fixedly connected to the upper surface of the sealing mounting plate (6).

5. The pressure resistance testing device for a spray can according to claim 1, characterized in that: The bottom surface of the sealing cover (5) is fixedly connected to four rectangular array of guide rods (15), and the outer surfaces of the four guide rods (15) are slidably connected to the inner wall of the protective box (1).

6. The pressure resistance testing device for a spray can according to claim 1, characterized in that: The outer surface of the protective box (1) is provided with two sets of symmetrical limiting components (16), and the inner wall of the protective box (1) is fixedly connected with a second pressure relief pipe (17), and the outer surface of the second pressure relief pipe (17) is fixedly connected with a second solenoid valve (18).

7. The pressure resistance testing device for a spray can according to claim 6, characterized in that: The limiting component (16) includes a component frame (1601) and an insert (1602). The outer surface of the component frame (1601) is fixedly connected to the outer surface of the protective box (1). The upper surface of the insert (1602) is fixedly connected to the bottom surface of the sealing cover (5). The outer surface of the insert (1602) has two symmetrical slots (1603). The outer surface of the component frame (1601) has two sets of symmetrical sliding grooves (1604). The inner walls of the two sets of sliding grooves (1604) are slidably connected to limiting blocks (1605). The outer surfaces of the two limiting blocks (1605) are inserted into the inner walls of the slots (1603).

8. The pressure resistance testing device for a spray can according to claim 7, characterized in that: A second spring (1606) is fixedly connected to one side of each of the two limiting blocks (1605) that are far apart from each other, and the end of the second spring (1606) that is far from the outer surface of the limiting block (1605) is fixedly connected to the inner wall of the component frame (1601).

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