Breathable device for testing the hydrophilic cotton

Abstract

The utility model discloses a ventilative detection device of lactophily cotton, including first pressure vessel, second pressure vessel, male joint, female joint, first pressure vessel and second pressure vessel are connected high pressure gas source respectively, and the pressure gauge is installed on first pressure vessel and second pressure vessel respectively, one end of male joint is equipped with the plug -in part, and the other end is connected first pressure container, and the first sealing ring is sleeved on the plug -in part, one end of female joint is equipped with the receiving groove, and the other end is connected second pressure vessel, and the second sealing ring is installed on the circumference of receiving groove, and the third sealing ring is installed in the groove bottom of receiving groove. The utility model discloses through multiple sealing rings and butt flange design, improve the clamping sealing property greatly, avoid the air leakage of sample all around, and the butt power structure reduces the manual strength, guarantees the butt pressure even. The real -time air leakage monitoring is realized to the cotton cloth of immersion soap solution, and the whole device is reliable in sealing, convenient in operation, can accurate access lactophily cotton ventilative data, and improves the quality control level.

Description

Technical Field

[0001] This utility model belongs to the field of air permeability testing technology, specifically relating to an air permeability testing device for breast-friendly cotton. Background Technology

[0002] As an important material in pillows, cushions, mattresses, and other fields, the breathability of breast-friendly cotton (breast-friendly cotton sponge, bio-based sponge) directly affects the comfort and safety of users. Therefore, breathability testing is a key aspect of product quality control. Currently, the industry mostly uses simple devices to test the breathability of breast-friendly cotton, clamping the sample and observing the breathability effect through air pressure difference. However, existing devices have obvious shortcomings.

[0003] First, the sample clamping structure has poor sealing performance, relying mostly on a single sealing ring or simple clamping method, which easily leads to air leakage around the sample, resulting in significant deviations in the test data. Second, the joint connection process relies on manual operation, which is not only labor-intensive but also prone to uneven connection pressure, causing sample deformation or seal failure. Furthermore, the lack of a real-time leakage monitoring mechanism means that data validity can only be determined after the test is completed, reducing testing efficiency. Additionally, the pressure regulation and pressure holding capabilities of the existing device's pressure vessel are insufficient, making it difficult to meet the accurate testing requirements of different specifications of breast-friendly cotton. Utility Model Content

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a breathability testing device for breast-friendly cotton, including a first pressure vessel, a second pressure vessel, a male connector, and a female connector. The first and second pressure vessels are respectively connected to a high-pressure air source, and pressure gauges are respectively installed on the first and second pressure vessels. One end of the male connector is provided with a plug-in part, and the other end is connected to the first pressure vessel through a first corrugated pipe. A first sealing ring is fitted on the plug-in part. One end of the female connector is provided with a receiving groove, and the other end is connected to the second pressure vessel through a second corrugated pipe. The receiving groove is for the plug-in part to be inserted. A second sealing ring is installed on the circumferential surface of the receiving groove, and a third sealing ring is installed at the bottom of the receiving groove.

[0005] As a preferred embodiment of the above technical solution, the male connector and the female connector are respectively provided with mating flanges, and the mating flanges on the male connector and the female connector are connected by a number of bolts.

[0006] As a preferred embodiment of the above technical solution, it also includes a cotton cloth soaked in soapy water, which wraps around the male and female connectors.

[0007] As a preferred embodiment of the above technical solution, control valves are respectively installed on the first bellows and the second bellows.

[0008] As a preferred embodiment of the above technical solution, pressure relief valves are respectively installed on the first pressure vessel and the second pressure vessel.

[0009] As a preferred embodiment of the above technical solution, a docking assistance structure is also included. The docking assistance structure includes a slide rail and a moving drive mechanism. A first slider and a second slider are installed on the slide rail. A limit plate is fixedly connected to one end of the slide rail. The second slider is located between the first slider and the limit plate. The moving drive mechanism is located at the other end of the slide rail. The moving drive mechanism drives the first slider to move on the slide rail. Insert rods are respectively provided on the first slider and the second slider. The insert rods can be inserted into the bolt holes in the docking flange.

[0010] As a preferred embodiment of the above technical solution, a spring is provided between the fixing plate and the second slider.

[0011] The beneficial effects of this invention are as follows: The air permeability testing device for breast-friendly cotton significantly improves clamping sealing through a multi-sealing ring and docking flange design, preventing air leakage around the sample; the docking assist structure reduces manual labor and ensures uniform docking pressure. Real-time leakage monitoring is achieved using soap-soaked cotton cloth. The overall device is reliably sealed, easy to operate, and can accurately obtain breast-friendly cotton air permeability data, thus improving quality control. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram of the present invention from another angle. Detailed Implementation

[0013] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0014] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0016] like Figure 1-2 As shown, the air permeability testing device for breast-friendly cotton includes a first pressure vessel 1, a second pressure vessel 2, a male connector 3, and a female connector 4. The first and second pressure vessels 1 and 2 are respectively connected to a high-pressure air source (using an air compressor). Pressure gauges 5 are installed on both the first and second pressure vessels 1 and 2. One end of the male connector 3 has a plug-in portion 6, and the other end is connected to the first pressure vessel 1 via a first corrugated pipe 7. A first sealing ring 8 is fitted onto the plug-in portion 6. One end of the female connector 4 has a receiving groove 9, and the other end is connected to the second pressure vessel 2 via a second corrugated pipe 10. The receiving groove 9 allows the plug-in portion 6 to be inserted. A second sealing ring 11 is installed on the circumferential surface of the receiving groove 9, and a third sealing ring 12 is installed at the bottom of the receiving groove 9. The first and second pressure vessels 1 and 2 contain different air pressures. The high-pressure air source replenishes the air pressure to the first and second pressure vessels 1 and 2, allowing them to reach a set pressure. The breast-friendly cotton 30 is sandwiched between the male connector 3 and the female connector 4, with the breast-friendly cotton 30 tightly clamped around its edges. The male connector 3 and the female connector 4 are then joined together. The first sealing ring 8, the second sealing ring 11, and the third sealing ring 12 ensure the airtightness of the connection between the male connector 3 and the female connector 4, preventing air leakage around the breast-friendly cotton 30. The first pressure vessel 1 and the second pressure vessel 2 have different air pressures. The changes in the pressure gauges 5 on the first pressure vessel 1 and the second pressure vessel 2 are observed, and the pressure changes are recorded over a specific time period to obtain the air permeability of the breast-friendly cotton 30.

[0017] Furthermore, the male connector 3 and the female connector 4 are respectively provided with mating flanges 13, which are connected by several bolts. The connection of the mating flanges 13 improves the stability of the connection between the male connector 3 and the female connector 4. A sealing ring may also be provided on the inner side of the mating flange 13.

[0018] Furthermore, the test includes a cotton cloth 14 soaked in soapy water, which wraps around the male connector 3 and the female connector 4. After the male connector 3 and the female connector 4 are connected, wrapping them with the soapy cotton cloth 14 allows for observation of any air leaks at the connection point during the test. If air bubbles appear on the cotton cloth 14, the test can be stopped, and the connection reconnected before retesting. This ensures the accuracy of the test results.

[0019] Furthermore, control valves 15 are respectively installed on the first bellows 7 and the second bellows 10. After the test is completed, the control valves 15 are closed, and a certain pressure can be retained inside the first pressure vessel 1 and the second pressure vessel 2. This reduces the amount of air pressure that needs to be replenished during the next test and improves test efficiency.

[0020] Furthermore, pressure relief valves 16 are respectively installed on the first pressure vessel 1 and the second pressure vessel 2. The pressure relief valves 16 prevent excessive internal pressure in the first pressure vessel 1 and the second pressure vessel 2 from causing safety accidents.

[0021] Furthermore, it also includes a docking assistance structure, which includes a slide rail 19 and a moving drive mechanism. A first slider 17 and a second slider 18 are mounted on the slide rail 19. One end of the slide rail 19 is fixedly connected to a limit plate 20. The second slider 18 is located between the first slider 17 and the limit plate 20. The moving drive mechanism 25 (using a cylinder) is located at the other end of the slide rail 19. The moving drive mechanism drives the first slider to move on the slide rail 19. Insert rods 21 are respectively provided on the first slider 17 and the second slider 18. The insert rods 21 can be inserted into bolt holes 22 in the docking flange. Now, the docking assistance structure is moved between the 13th pressure vessel 1 and the 2nd pressure vessel 2, so that the docking flange 13 on the male connector 3 and the docking flange 13 on the female connector 4 are located between the first slider 17 and the second slider 18. The first slider 17 and the second slider 18 are manually moved so that the insert rods 21 are respectively inserted into one of the bolt holes 22 in the docking flange 13. The breast-friendly cotton 30 to be tested is clamped between the male connector 3 and the female connector 4. The moving drive mechanism is activated, causing the first slider 17 to move towards the second slider 18. The limiting plate 20 blocks the second slider 18, and the insertion part 6 is inserted into the receiving groove 9, achieving the docking of the male connector 3 and the female connector 4. Then, the bolts are passed through the remaining bolt holes 22 and the nuts are tightened. Finally, the moving drive mechanism is reset, and the docking assist structure is removed. The last bolt is passed through the last bolt hole 22 to complete the docking operation.

[0022] Furthermore, a spring is provided between the limiting plate 20 and the second slider 18. The spring provides a buffering effect during the docking process between the male connector 3 and the female connector 4.

[0023] It is worth mentioning that the technical features of cylinders, air compressors, pressure vessels, etc. involved in this utility model patent application should be regarded as prior art. The specific structure, working principle, and possible control methods and spatial arrangement of these technical features can be adopted using conventional choices in the field and should not be regarded as the inventive point of this utility model patent. This utility model patent will not be further elaborated in detail.

[0024] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make many modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning or limited experimentation on the basis of the prior art should be within the scope of protection defined by the claims.

Claims

1. A device for testing the air permeability of breast-friendly cotton, characterized in that, It includes a first pressure vessel, a second pressure vessel, a male connector, and a female connector. The first and second pressure vessels are respectively connected to a high-pressure gas source. Pressure gauges are installed on the first and second pressure vessels respectively. One end of the male connector is provided with a plug-in part, and the other end is connected to the first pressure vessel through a first corrugated pipe. A first sealing ring is fitted on the plug-in part. One end of the female connector is provided with a receiving groove, and the other end is connected to the second pressure vessel through a second corrugated pipe. The receiving groove is for the plug-in part to be inserted. A second sealing ring is installed on the circumferential surface of the receiving groove, and a third sealing ring is installed at the bottom of the receiving groove.

2. The air permeability testing device for breast-friendly cotton as described in claim 1, characterized in that, The male connector and the female connector are respectively provided with mating flanges, and the mating flanges on the male connector and the female connector are connected by several bolts.

3. The air permeability testing device for breast-friendly cotton as described in claim 2, characterized in that, It also includes a cotton cloth soaked in soapy water, which wraps around the male and female connectors.

4. The air permeability testing device for breast-friendly cotton as described in claim 1, characterized in that, Control valves are installed on the first bellows and the second bellows, respectively.

5. The air permeability testing device for breast-friendly cotton as described in claim 1, characterized in that, Pressure relief valves are installed on the first pressure vessel and the second pressure vessel respectively.

6. The air permeability testing device for breast-friendly cotton as described in claim 2, characterized in that, It also includes a docking assist structure, which includes a slide rail and a moving drive mechanism. A first slider and a second slider are installed on the slide rail. A limit plate is fixedly connected to one end of the slide rail. The second slider is located between the first slider and the limit plate. The moving drive mechanism is located at the other end of the slide rail. The moving drive mechanism drives the first slider to move on the slide rail. Insert rods are respectively provided on the first slider and the second slider. The insert rods can be inserted into the bolt holes in the docking flange.

7. The air permeability testing device for breast-friendly cotton as described in claim 6, characterized in that, A spring is provided between the limiting plate and the second slider.

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