Simple and convenient soft bag sealing leak detection device

Abstract

The utility model provides a simple and convenient soft bag leakproofness leak detection device, which comprises a water tank, a transparent upper cover, a water injection mechanism, an air inflation mechanism and a controller, the transparent upper cover is buckled with the water tank, the water injection mechanism is communicated with the water tank, the air inflation mechanism comprises an air source, a pressure control valve and an air delivery pipe which are connected in sequence, and the controller is connected with the air source. A connector used for being connected with a soft bag to be tested is arranged at the end of the air conveying pipe, and the controller is electrically connected with the water injection mechanism and the air inflation mechanism so as to control the water injection mechanism and the air inflation mechanism to be started and stopped. The simple and convenient soft bag leakproofness leak detection device provided by the utility model has few operation steps, can realize automatic water adding and air inflation, and saves the test cost.

Description

Technical Field

[0001] The utility model relates to the field of leak detection devices, in particular to a simple soft bag sealing leak detection device. Background Art

[0002] In the pharmaceutical packaging field, medical plastic packaging, with its advantages of good stability, low cost, and resistance to breakage, has gradually replaced glass bottles and become the mainstream of pharmaceutical packaging. If the plastic packaging bags used for pharmaceuticals cannot ensure the sealing of the products, the sterility of the drugs will be lost, which will cause harm to the human body.

[0003] Utility model patent CN 204630698 U discloses an airtightness detection device with a sandwich protective air packaging bag, including a transparent barrel and a barrel cover with a sealing ring, wherein the barrel cover is covered on the barrel to form an airtight cavity, and an air inlet pipe with a valve is provided on the barrel cover, and the barrel is filled with purified water.

[0004] However, this utility model patent requires manual water addition. In addition to inflating the packaging bag first, compressed gas must also be added to the barrel. This involves many steps, consumes a large amount of gas, and is costly. Utility Model Content

[0005] In order to make up for the deficiencies in the prior art, the utility model provides a simple soft bag sealing leak detection device with fewer operating steps, which can realize automatic water addition and inflation, thus saving testing costs.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A simple soft bag sealing leak detection device includes a water tank, a transparent upper cover, a water injection mechanism, an air inflation mechanism and a controller. The transparent upper cover is engaged with the water tank, the water injection mechanism is connected to the water tank, the air inflation mechanism includes an air source, a pressure control valve and an air supply pipe connected in sequence, and the end of the air supply pipe is provided with a connector for connecting to the soft bag to be tested. The controller is electrically connected to the water injection mechanism and the air inflation mechanism to control the start and stop of these mechanisms.

[0008] Furthermore, the water injection mechanism includes a water tank, a water pump and a water pipe. The water tank is arranged outside the water tank, the water pump is connected to the water tank and the water pipe, the side wall of the water tank is provided with a water injection port, and the water pipe is connected to the water injection port.

[0009] Furthermore, a drain outlet is provided at the bottom of the water tank.

[0010] Furthermore, a return water pump is provided outside the water tank, the return water pump is connected to the drain outlet and the water storage tank through a pipeline, and the return water pump is electrically connected to the controller.

[0011] Furthermore, the two opposite inner walls of the water tank are provided with an upper limit block and a lower limit block from top to bottom, the lower limit block and the upper limit block are staggered in the vertical direction, the transparent upper cover is provided with a limit groove matching the upper limit block, and the upper limit block is rotatably connected to a pressure rod.

[0012] Furthermore, the transparent upper cover is provided with an air pipe avoidance opening.

[0013] Compared with the prior art, the present invention has the following beneficial technical effects:

[0014] The utility model discloses a simple soft bag sealing leak detection device. After the soft bag to be tested is connected to the air pipe, it is placed in a water tank. The water tank can be automatically filled with water and the soft bag can be automatically inflated by the water injection mechanism and the air inflation mechanism. The operation steps are few, and the testing cost is effectively saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of a simple soft bag sealing leakage detection device of the utility model.

[0016] Among them: 1. Water tank; 11. Upper limit block; 12. Lower limit block; 13. Pressure rod; 2. Transparent upper cover; 21. Limit groove; 22. Air pipe avoidance port; 3. Water injection mechanism; 31. Water storage tank; 32. Water pump; 33. Water pipe; 4. Inflating mechanism; 41. Air source; 42. Pressure control valve; 43. Air pipe; 44. Connector; 5. Soft bag. DETAILED DESCRIPTION

[0017] The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art can make similar generalizations without violating the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0018] Example 1

[0019] like Figure 1 The figure shows a simple soft bag leak test device, comprising a water tank 1, a transparent cover 2, a water injection mechanism 3, an air inflation mechanism 4, and a controller. The water tank 1 is square and sized to accommodate the soft bag to be tested. The transparent cover 2 snaps into place with the water tank 1, and the transparent material allows observation of the soft bag's test status within the water tank 1.

[0020] The two opposite inner walls of the water tank 1 are provided with an upper limit block 11 and a lower limit block 12 from top to bottom, and the side of the transparent upper cover 2 is provided with a limit groove 21 matching the upper limit block 11. The transparent upper cover 2 can be embedded in the water tank 1 through the limit groove 21.

[0021] The lower limit block 12 and the upper limit block 11 are vertically offset to limit the downward sliding position of the transparent cover 2. The upper limit block 11 is rotatably connected to a pressure rod 13. After the transparent cover 2 is inserted into the water tank 1, the pressure rod 13 is rotated to the upper part of the transparent cover 3 to limit the upward sliding position of the transparent cover 2.

[0022] The water filling mechanism 3 is connected to the water tank 1 and is used to fill water into the water tank 1. The water filling mechanism 3 includes a water tank 31, a water pump 32, and a water supply pipe 33. The water tank 31 is located outside the water tank 1, and the water pump 32 is connected to the water tank 31 and the water supply pipe 33. The water tank 1 has a water filling port on the side wall. The water filling port is located below the lower limit block 12 to avoid being blocked by the transparent upper cover 2. The water supply pipe 33 is connected to the water filling port.

[0023] The inflation mechanism 4 comprises a gas source 41, a pressure control valve 42, and a gas pipe 43, which are connected in sequence. The end of the gas pipe 43 is equipped with a connector 44 for connecting to the soft bag to be tested. The gas source 41 can be a compressed gas tank or an air pump, and the pressure control valve 42 controls the output pressure. A gas pipe clearance 22 is provided on the side of the transparent cover 2 to ensure that the transparent cover 2 can still move up and down after the gas pipe 43 is placed in the water tank 1.

[0024] The controller is electrically connected to the water injection mechanism 3 and the aeration mechanism 4 to control the start and stop of these mechanisms, thereby achieving automatic water injection and automatic aeration. The controller can be located on the outer wall of the water tank 1 and can be provided with a control panel to set the water injection time, the aeration time, etc.

[0025] A drain outlet is provided at the bottom of the water tank 1 to drain the water after the test is completed. Optionally, a return water pump is provided outside the water tank, the return water pump is connected to the drain outlet and the water storage tank 31 through a pipeline, and the return water pump is electrically connected to the controller, thereby realizing water recycling.

[0026] The simple soft bag sealing leak detection device of the utility model is used as follows:

[0027] Connect the soft bag 5 to be tested to the connector 44 of the air pipe, then place it in the water tank 1. Then place the transparent cover 2 in the water tank 1. Rotate the pressure rod 13 so that it is located above the transparent cover 2. Recently, use the controller to simultaneously turn on the water injection mechanism 3 and the inflation mechanism 4 to fill the water tank 1 with water and inflate the soft bag 5. Observe through the transparent cover 2 to see if there are bubbles on the water surface. If there are no bubbles, the soft bag is airtight.

[0028] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. However, any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A simple soft bag leak detection device, characterized by: The device comprises a water tank, a transparent upper cover, a water injection mechanism, an air inflation mechanism and a controller. The transparent upper cover is engaged with the water tank, the water injection mechanism is connected to the water tank, the air inflation mechanism comprises an air source, a pressure control valve and an air supply pipe connected in sequence, the end of the air supply pipe is provided with a connector for connecting to the soft bag to be tested, and the controller is electrically connected to the water injection mechanism and the air inflation mechanism to control the start and stop of these mechanisms.

2. The simple soft bag sealing leak detection device according to claim 1, characterized in that: The water injection mechanism includes a water tank, a water pump and a water pipe. The water tank is arranged outside the water tank. The water pump is connected to the water tank and the water pipe. A water injection port is provided on the side wall of the water tank. The water pipe is connected to the water injection port.

3. The simple soft bag sealing leak detection device according to claim 2, characterized in that: A drain outlet is provided at the bottom of the water tank.

4. The simple soft bag sealing leak detection device according to claim 3, characterized in that: A return water pump is provided outside the water tank, the return water pump is connected to the drain outlet and the water storage tank through a pipeline, and the return water pump is electrically connected to the controller.

5. The simple soft bag sealing leak detection device according to claim 4, characterized in that: The two opposite inner walls of the water tank are provided with an upper limit block and a lower limit block from top to bottom. The lower limit block and the upper limit block are staggered in the vertical direction. The transparent upper cover is provided with a limit groove matching the upper limit block, and a pressure rod is rotatably connected to the upper limit block.

6. The simple soft bag sealing leak detection device according to claim 5, characterized in that: The transparent upper cover is provided with an air pipe avoidance opening.

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