Water pressure detection device for sealing performance of medical packaging bag

Abstract

The utility model relates to the technical field of packaging bag detection, in particular to a medical packaging bag sealing performance water pressure detection device which comprises a detection base, a measuring cylinder is arranged at the upper end of the detection base, a horizontally-distributed linear guide rail is arranged below the measuring cylinder, and a connecting column is driven by a guide block. The lower end of the connecting column is sleeved with a dynamic ring driven by an air cylinder to ascend and descend, supports are arranged on the two sides of the dynamic ring, dynamic plates capable of swinging in real time are arranged on the supports, distribution detection heads are installed on the outer sides of the dynamic plates, and the distribution detection heads are connected with a measuring cylinder through soft guide pipes. And a pressure pump is arranged at the joint of the measuring cylinder and the soft catheter. The medical packaging bag sealing water pressure detection device ensures that water pressure is uniformly distributed on each part of the packaging bag to be detected in the detection process, so that the detection accuracy and reliability are improved, and meanwhile, the risk of sample damage is reduced.

Description

Technical Field

[0001] This utility model relates to the field of packaging bag testing technology, specifically a water pressure testing device for the sealing performance of medical packaging bags. Background Technology

[0002] Ensuring the safety and effectiveness of various medical supplies is crucial in the production of medical devices. Medical packaging bags, as the first line of defense protecting medical products from external environmental influences, directly affect the safety and efficacy of their contents through their sealing performance. Therefore, rigorous sealing tests on medical packaging bags are an essential step.

[0003] Existing water pressure testing devices for the sealing of medical packaging bags have a major problem: during high-pressure water leak testing, uneven pressure distribution can easily lead to errors in the test results. This is especially true when testing packaging bags with complex shapes or large sizes, where some areas may experience excessively high pressure while other areas fail to receive sufficient pressure testing. This not only affects the accuracy of the test but may also damage the tested sample due to uneven stress, increasing testing costs and reducing work efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a water pressure testing device for the sealing of medical packaging bags, so as to solve the problem mentioned in the background art that the test results are incorrect due to uneven pressure distribution when high-pressure water leak testing is performed on medical packaging bags.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a water pressure testing device for the sealing of medical packaging bags, comprising a testing base, a measuring cylinder at the upper end of the testing base, a horizontally distributed linear guide rail below the measuring cylinder and a connecting column driven by a guide block, a dynamic ring that is driven to rise and fall by a cylinder on the lower end of the connecting column, supports on both sides of the dynamic ring, a dynamic plate that can swing in real time on the supports, a dispensing testing head installed on the outer side of the dynamic plate, the dispensing testing head being connected to the measuring cylinder through a flexible conduit, and a pressure pump being provided at the connection between the measuring cylinder and the flexible conduit.

[0006] Preferably, the cylinder is vertically fixed to the upper end of the connecting column by a connector, and the output end of the cylinder is fixedly connected to one side edge of the top of the dynamic ring.

[0007] Preferably, a servo motor is fixedly installed on the back side of the bracket, and a rotating shaft connected to the output shaft of the servo motor is provided on the front side of the bracket, and the inner side of the dynamic plate is fixedly sleeved on the outside of the rotating shaft by a connecting sleeve.

[0008] Preferably, the outer side of the dynamic plate is provided with an elastic fastener with an arc-shaped structure, and the distribution detection head is engaged inside the elastic fastener.

[0009] Preferably, a positioning ring is provided above the bottom plate of the detection base, and positioning posts are provided on both sides of the positioning ring, which are vertically fixed to both sides of the bottom plate of the detection base.

[0010] Preferably, a plurality of clamping unit blocks are arranged around the inner wall of the positioning ring, and the inner side of each clamping unit block is connected to the inner side of the positioning ring through an elastic bending member.

[0011] Compared with existing technologies, the beneficial effects of this invention are: the water pressure testing device for the sealing of medical packaging bags ensures that water pressure is evenly distributed across every part of the packaging bag during the testing process, improving the accuracy and reliability of the test while reducing the risk of sample damage. The device uses a cylinder to drive a dynamic ring for precise lifting and lowering, combined with linear guides and connecting columns to achieve precise horizontal positioning. The real-time swinging of the dynamic plate adjusts the optimal contact angle of the testing head, effectively ensuring that water pressure is evenly applied to each test point on the packaging bag. This not only solves the problem of uneven pressure distribution in traditional equipment but also further enhances the stability and efficiency of the testing process. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a water pressure testing device for the sealing performance of medical packaging bags according to this utility model;

[0013] Figure 2 This is a top view of the dynamic ring structure of a water pressure testing device for the sealing performance of medical packaging bags according to this utility model.

[0014] Figure 3 This is a schematic diagram of the internal structure of the positioning ring of a water pressure testing device for the sealing performance of medical packaging bags according to this utility model.

[0015] In the diagram: 1. Detection base; 2. Measuring cylinder; 3. Linear guide rail; 4. Connecting column; 5. Cylinder; 6. Dynamic ring; 7. Bracket; 8. Dynamic plate; 9. Distribution detection head; 10. Flexible guide tube; 11. Pressure pump; 12. Positioning ring; 13. Positioning column; 14. Servo motor; 15. Rotating shaft; 16. Elastic fastener; 17. Clamping unit block. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-3This utility model provides a technical solution: a water pressure testing device for the sealing of medical packaging bags, including a testing base 1. A measuring cylinder 2 is welded and fixed to the upper end of the testing base 1. The measuring cylinder 2 is provided with a filling port. A horizontally distributed linear guide rail 3 is provided below the measuring cylinder 2, and a connecting column 4 is driven by a guide block. A dynamic ring 6 driven to rise and fall by a cylinder 5 is sleeved on the lower end of the connecting column 4. A bracket 7 is provided on both sides of the dynamic ring 6. A dynamic plate 8 that can swing in real time is provided on the bracket 7. A dispensing test head 9 is installed on the outside of the dynamic plate 8. The dispensing test head 9 is connected to the measuring cylinder 2 through a soft tube 10. A pressure pump 11 is fixedly installed at the connection between the measuring cylinder 2 and the soft tube 10. The testing base 1 of this structure positions and fixes the medical packaging bag to be tested during use. Afterwards, the measuring cylinder 2 can be injected with an appropriate amount of water, and the pressure pump 11 can deliver water pressure into the flexible conduit 10 to ensure that the water can be evenly distributed into the two distribution detection heads 9. At this time, the connecting column 4 on the linear guide rail 3 can move horizontally under the drive of the guide block, adjusting the position of the distribution detection head 9 so that it is accurately aligned with the key part of the packaging bag to be tested. At the same time, the cylinder 5 drives the dynamic ring 6 to move up and down, driving the dynamic plate 8 on its two side supports 7 and the distribution detection head 9 on its outer side to move up and down. At the same time, the dynamic plate 8 can swing in real time to ensure that the distribution detection head 9 and the surface of the packaging bag always maintain the best contact angle, further ensuring the uniform application of water pressure. Throughout the process, the close linkage and cooperation between the various components ensure that the water pressure can be applied evenly. This design, used for various areas of the packaging bag under test, solves the problem of test result errors caused by uneven pressure distribution in existing technologies, improving the accuracy and reliability of the test, while reducing the risk of sample damage due to uneven force. This effectively improves work efficiency and reduces testing costs. Cylinder 5 is vertically fixed to the upper end of connecting column 4 via a connector, and the output end of cylinder 5 is fixedly connected to one side edge of the top of dynamic ring 6. When cylinder 5 is activated for lifting and lowering operations, this structure can precisely drive dynamic ring 6 to move smoothly in the vertical direction. This ensures that the distribution detection heads 9 on both sides of dynamic ring 6 can move up and down synchronously, thereby flexibly adjusting the height of the distribution detection heads 9 to adapt to the sealing test requirements of medical packaging bags of different sizes and shapes. (Support 7) A servo motor 14 is fixedly mounted on the back side of the support 7, and a rotating shaft 15 connected to the output shaft of the servo motor 14 is provided on the front side of the support 7. The inner side of the dynamic plate 8 is fixedly sleeved on the outside of the rotating shaft 15. When the servo motor 14 is started, this structure can drive the rotating shaft 15 to rotate precisely, thereby realizing the swing of the dynamic plate 8 around the axis of the rotating shaft 15. This allows the dynamic plate 8 to flexibly adjust its angle according to the specific shape and position requirements of the packaging bag to be tested, ensuring that the dispensing detection head 9 can always contact the surface of the packaging bag at the optimal angle to achieve uniform water pressure application. An arc-shaped elastic fastener 16 is welded and fixed to the outside of the dynamic plate 8, and the dispensing detection head 9 is engaged inside the elastic fastener 16. This structure of the elastic fastener 16 can provide a certain degree of elasticity and adaptability.This design allows the dispensing detection head 9 to be securely engaged inside the elastic fastener 16, ensuring that the connection between the dispensing detection head 9 and the dynamic plate 8 is both firm and flexible. A positioning ring 12 is provided above the base plate of the detection base 1, and positioning posts 13 are vertically fixed to both sides of the base plate of the detection base 1 on both sides of the positioning ring 12. Sliding sleeves fitted onto the outside of the positioning ring 12 are welded and fixed with bolts on both sides of the outer wall of the positioning ring 12. This structure of the positioning ring 12 is used to clamp and position the medical packaging bag to be tested, ensuring its stability during the testing process. The positioning ring 12 remains stationary and can move up and down along the positioning post 13 via a sliding sleeve, thereby adjusting to a suitable height to accommodate packaging bags of different sizes. Several clamping unit blocks 17 are arranged around the inner wall of the positioning ring 12, and the inner sides of each clamping unit block 17 are connected to the inner side of the positioning ring 12 via elastic bending elements. This structure allows the clamping unit blocks 17 to flexibly shift under the action of the elastic bending elements, ensuring that each clamping unit block 17 can tightly fit against the outer surface of the packaging bag, thus achieving effective fixing and positioning of packaging bags of different shapes and sizes.

[0018] Working principle: When using this medical packaging bag sealing water pressure testing device, firstly, the medical packaging bag to be tested is placed in the positioning ring 12, and the clamping unit block 17 is used to flexibly shift and fit tightly against the outer surface of the packaging bag through the elastic bending part. Then, the height of the positioning ring 12 is adjusted so that it moves up and down along the positioning column 13 and is fixed to a suitable position by the sliding sleeve and bolts. Then, an appropriate amount of water is injected into the measuring cylinder 2, and water pressure is delivered into the soft tube 10 through the pressure pump 11 to ensure that the water can be evenly distributed into the distribution testing head 9. The servo motor 14 is started so that the dynamic plate 8 rotates around the rotating shaft 15 to adjust the distribution. The angle of the detection head 9 is adapted to the specific shape and position requirements of the packaging bag. Next, the connecting column 4 on the linear guide rail 3 moves horizontally under the drive of the guide block, precisely adjusting the position of the distribution detection head 9 so that it is accurately aligned with the key parts of the packaging bag to be tested. At the same time, the cylinder 5 is activated to perform a lifting operation, driving the dynamic ring 6 and the dynamic plates 8 on its two side supports 7 and the distribution detection head 9 to move up and down synchronously. This allows for flexible adjustment of the height position of the distribution detection head 9. Throughout the process, the dynamic plate 8 can swing in real time, ensuring that the distribution detection head 9 and the surface of the packaging bag always maintain the best contact angle, thus completing a series of tasks.

[0019] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A water pressure testing device for the sealing performance of medical packaging bags, comprising a testing base (1), characterized in that: The upper end of the detection base (1) is provided with a measuring cylinder (2), and the lower part of the measuring cylinder (2) is provided with a horizontally distributed linear guide rail (3) and a connecting column (4) driven by a guide block. The lower end of the connecting column (4) is fitted with a dynamic ring (6) driven to rise and fall by a cylinder (5). Both sides of the dynamic ring (6) are provided with brackets (7). The brackets (7) are provided with a dynamic plate (8) that can swing in real time. The outer side of the dynamic plate (8) is equipped with a distribution detection head (9). The distribution detection head (9) is connected to the measuring cylinder (2) through a soft tube (10). A pressure pump (11) is provided at the connection between the measuring cylinder (2) and the soft tube (10).

2. The water pressure testing device for the sealing performance of medical packaging bags according to claim 1, characterized in that: The cylinder (5) is vertically fixed to the upper end of the connecting column (4) by a connector, and the output end of the cylinder (5) is fixedly connected to one side edge of the top of the dynamic ring (6).

3. The water pressure testing device for the sealing performance of medical packaging bags according to claim 1, characterized in that: A servo motor (14) is fixedly installed on the back side of the bracket (7), and a rotating shaft (15) connected to the output shaft of the servo motor (14) is provided on the front side of the bracket (7). The inner side of the dynamic plate (8) is fixedly sleeved on the outside of the rotating shaft (15) by a connecting sleeve.

4. The water pressure testing device for the sealing performance of medical packaging bags according to claim 1, characterized in that: The outer side of the dynamic plate (8) is provided with an elastic fastener (16) with an arc-shaped structure, and the distribution detection head (9) is engaged inside the elastic fastener (16).

5. The water pressure testing device for the sealing performance of medical packaging bags according to claim 1, characterized in that: The detection base (1) has a positioning ring (12) above its bottom plate, and both sides of the positioning ring (12) are provided with positioning columns (13) that are vertically fixed to both sides of the bottom plate of the detection base (1).

6. The water pressure testing device for the sealing performance of medical packaging bags according to claim 5, characterized in that: The inner wall of the positioning ring (12) is surrounded by a plurality of clamping unit blocks (17), and the inner side of each clamping unit block (17) is connected to the inner side of the positioning ring (12) through an elastic bending member.

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