A breathable testing device for women's underwear fabric production

Abstract

The utility model discloses a kind of ventilation testing devices for women's underwear fabric production, including machine body, the inside of machine body is equipped with detection cavity, lower detection cover and upper detection cover are installed in the inside of detection cavity, a sealed cavity is formed between lower detection cover and upper detection cover, gas pipe is equipped on lower detection cover, gas valve and pressure sensor are equipped on gas pipe, upper detection cover side is equipped with air inlet pipe, air inlet valve and gas flowmeter are equipped on air inlet pipe, gas valve, pressure sensor, air inlet valve and gas flowmeter are electrically connected with machine body, the top of machine body is equipped with stabilvoltage pump, the exhaust end of stabilvoltage pump is connected with air inlet pipe, the top of machine body is equipped with electric push rod, electric push rod output end is inserted into detection cavity inside and connected with upper detection cover. Upper detection cover cooperates lower detection cover and can stably carry out air permeability detection to fabric, and detection cavity also provides a stable detection environment for detection.

Description

Technical Field

[0001] This utility model relates to the technical field of breathability testing equipment, specifically a breathability testing device for the production of women's underwear fabrics. Background Technology

[0002] In the production of women's underwear, fabric breathability is a crucial performance indicator. Good breathability ensures wearer comfort, reduces stuffiness and discomfort, and also has a positive impact on skin health. As people's living standards improve and they place greater emphasis on health, consumers are demanding higher breathability from women's underwear fabrics. Therefore, breathability testing is necessary during the production of women's underwear fabrics.

[0003] A utility model patent with publication number CN219496102U discloses a device for testing the breathability of knitted underwear fabric, including a base, a lower sealing cavity above the base, a sealing ring attached above the lower sealing cavity, fixed frames installed on both sides of the upper base, a drive motor fixed on the front side of the fixed frame, a roller installed on one output end of the drive motor, a driven shaft movably connected to one side of the fixed frame, and hydraulic cylinders installed on both sides of the upper base, with hydraulic rods installed above the hydraulic cylinders.

[0004] The fabric breathability testing equipment provided by the aforementioned patent can automatically feed fabric, reducing the workload of staff and improving work efficiency to some extent. However, in actual fabric breathability testing, variations in the testing environment can lead to inaccurate and unreliable results, failing to truly reflect the fabric's actual breathability. This makes it difficult for companies to make accurate judgments when selecting fabrics, thus affecting the quality and market competitiveness of women's underwear. Furthermore, existing breathability testing equipment lacks a stable testing environment, causing the fabric to be affected by external environmental factors during testing, resulting in inaccurate test results. Utility Model Content

[0005] The purpose of this utility model is to provide a breathability testing device for the production of women's underwear fabrics, aiming to improve the problem that existing fabric breathability testing equipment does not have a stable testing environment, which makes the fabric easily affected by external environmental factors during testing, resulting in inaccurate test results.

[0006] This utility model is implemented as follows:

[0007] A breathability testing device for women's underwear fabric production includes a machine body. A testing chamber is located inside the machine body. A lower testing cover and an upper testing cover are installed inside the testing chamber, forming a sealed cavity for testing the breathability of the fabric. An air outlet pipe is provided on the lower testing cover, and an air outlet valve and a pressure sensor are provided on the air outlet pipe. An air inlet pipe is provided on the side of the upper testing cover, and an air inlet valve and a gas flow meter are provided on the air inlet pipe. The air outlet valve, pressure sensor, air inlet valve, and gas flow meter are all electrically connected to the machine body. A pressure stabilizing pump is located on the top of the machine body, and the exhaust end of the pressure stabilizing pump is connected to the air inlet pipe. An electric push rod is located on the top of the machine body, and the output end of the electric push rod is inserted into the testing chamber and connected to the upper testing cover.

[0008] Preferably, the side and top of the body are provided with multiple perforations, the inside and top of the body are provided with multiple connecting slots, and the bottom corners of the body are provided with support feet.

[0009] Preferably, the front end of the machine body is provided with a control panel, the bottom of the inner side of the detection cavity is provided with a mounting platform, and the mounting platform is provided with multiple mounting slots.

[0010] Preferably, the bottom end of the lower detection cover is provided with a support column, the bottom end of the support column is provided with a fixing plate, the fixing plate is provided with multiple fixing holes, and the fixing plate and the mounting platform are connected by bolts.

[0011] Preferably, the top of the lower detection cover is provided with a pressure groove, and both the air outlet valve and the pressure sensor are provided with a first connecting line. The end of the first connecting line is provided with a first connecting plug, and the first connecting plug is connected to the machine body.

[0012] Preferably, the bottom of the upper detection cover is provided with a sealing pressure ring, and both the air inlet valve and the gas flow meter are provided with a second connecting line. The end of the second connecting line is provided with a second connecting plug, and the second connecting plug is connected to the machine body.

[0013] Preferably, the pressure stabilizing pump has an air inlet at the top, an exhaust pipe on the side, an adapter cap on the exhaust pipe, a mounting plate at the bottom, multiple mounting holes on the edge of the mounting plate, a third connecting line on the side, and a third connecting plug at the end of the third connecting line.

[0014] Preferably, the electric push rod has a fourth connecting line on its side, and the end of the fourth connecting line has a fourth connecting plug; the output end of the electric push rod has a telescopic rod, the bottom end of the telescopic rod has a connecting plate, and the end of the electric push rod that is in contact with the machine body has a fixed foot, which is connected to the machine body by bolts.

[0015] Preferably, it also includes a baffle, and the front end of the detection cavity of the machine body is provided with an opening, and the baffle is engaged at the front end opening of the detection cavity of the machine body.

[0016] Preferably, the baffle has a groove at the top and locking edges on both sides, which engage with the machine body, and an observation window in the middle of the baffle.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model features a machine body with an internal testing chamber containing an upper and lower testing cover. The upper and lower testing covers work together to stably test the breathability of the fabric. The testing chamber also provides a stable testing environment, preventing external environmental factors from affecting the breathability test. Furthermore, the various components of the device can be flexibly disassembled and assembled according to usage requirements, facilitating future maintenance and upkeep.

[0019] 2. This utility model provides a baffle at the front opening of the machine body, which can block the front opening of the machine body to ensure the stability of the internal environment of the detection chamber. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the body of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the lower detection cover of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the detection cover of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the pressure-stabilizing pump of this utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the electric push rod of this utility model;

[0026] Figure 7 This is a schematic diagram of the structure of the baffle of this utility model.

[0027] In the diagram: 1. Body; 10. Detection chamber; 11. Perforation; 12. Connecting slot; 13. Support leg; 14. Mounting platform; 15. Mounting groove; 16. Control panel; 2. Lower detection cover; 21. Pressure groove; 22. Support column; 23. Fixing plate; 24. Fixing hole; 25. Air outlet pipe; 26. Air outlet valve; 27. Pressure sensor; 28. First connecting line; 29. ​​First connecting plug; 3. Upper detection cover; 31. Sealing ring; 32. Air inlet pipe; 33. Air inlet valve 34. Gas flow meter; 35. Second connecting line; 36. Second connecting plug; 4. Pressure stabilizing pump; 41. Air inlet; 42. Exhaust pipe; 43. Adapter cap; 44. Mounting plate; 45. Mounting hole; 46. Third connecting line; 47. Third connecting plug; 5. Electric push rod; 51. Fourth connecting line; 52. Fourth connecting plug; 53. Fixed foot; 54. Telescopic rod; 55. Connecting plate; 6. Baffle; 61. Groove; 62. Edge retainer; 63. Observation window. Detailed implementation method:

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details:

[0030] Example 1

[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a breathability testing device for women's underwear fabric production includes a body 1. A testing chamber 10 is provided inside the body 1, providing a stable testing environment for facilitating breathability testing of the fabric. A lower testing cover 2 and an upper testing cover 3 are installed inside the testing chamber 10, forming a sealed cavity for testing the fabric's breathability. An exhaust pipe 25 is provided on the lower testing cover 2 to discharge gas passing through the fabric. An exhaust valve 26 and a pressure sensor 27 are provided on the exhaust pipe 25 to detect the pressure inside the exhaust pipe 25, facilitating the calculation of the pressure difference across the fabric. An intake pipe 32 is provided on the side of the upper testing cover 3, equipped with an intake valve 33 and a gas flow meter 34. The intake pipe 32 injects gas into the sealed cavity, and the intake valve 33 and gas flow meter 34 control the constant gas flow rate injected into the sealed cavity. The exhaust valve 26, pressure sensor 27, intake valve 33, and gas flow meter 34 are all electrically connected to the machine body 1, facilitating the control of all components by the machine body 1. A pressure stabilizing pump 4 is located at the top of the machine body 1. The exhaust end of the pressure stabilizing pump 4 is connected to the intake pipe 32, facilitating the supply of air to the intake pipe 32 and ensuring a constant air pressure at the intake end. An electric push rod 5 is located at the top of the machine body 1. The output end of the electric push rod 5 is inserted into the detection chamber 10 and connected to the upper detection cover 3, facilitating the up-and-down movement of the upper detection cover 3 by the electric push rod 5. To ensure that the up-and-down movement of the upper detection cover 3 is not affected, the intake pipe 32 must be a flexible hose or partially corrugated pipe. The upper detection cover 3 and the lower detection cover 2 are made of transparent material, facilitating observation of the fabric detection status.

[0032] like Figure 2 As shown, the machine body 1 has multiple through holes 11 on its sides and top, which facilitate the passage of the air outlet pipe 25, air inlet pipe 32, and electric push rod 5 through or into the machine body 1. The machine body 1 has multiple connecting slots 12 on its inner side and top, facilitating connection between the machine body 1 and various components. Support feet 13 are located at the corners of the bottom surface of the machine body 1, ensuring stable placement. A control panel 16 is located on one side of the front end of the machine body 1, allowing for easy operation of the entire device. A mounting platform 14 is located at the bottom inner side of the detection chamber 10, with multiple mounting slots 15 for easy installation of the lower detection cover 2.

[0033] like Figure 3As shown, the lower detection cover 2 has a support column 22 at its bottom end, and a fixing plate 23 at the bottom end of the support column 22. The fixing plate 23 has multiple fixing holes 24, and the fixing plate 23 is connected to the mounting platform 14 by bolts. This structure facilitates the stable installation of the lower detection cover 2 on the mounting platform 14, ensuring the stable use of the lower detection cover 2. The top of the lower detection cover 2 has a pressure groove 21, which cooperates with the upper detection cover 3 to facilitate the formation of a sealed cavity between the lower detection cover 2 and the upper detection cover 3. The exhaust valve 26 and the pressure sensor 27 are both equipped with a first connecting line 28, and the end of the first connecting line 28 is equipped with a first connecting plug 29. The first connecting plug 29 is plugged into and connected to the machine body 1, facilitating the control of the exhaust valve 26 and the pressure sensor 27 by the machine body 1.

[0034] like Figure 4 As shown, a sealing ring 31 is provided at the bottom of the upper detection cover 3. The sealing ring 31 facilitates the sealing between the upper detection cover 3 and the lower detection cover 2. At the same time, the sealing ring 31 is also used to compress the fabric, ensuring that the fabric is kept between the upper detection cover 3 and the lower detection cover 2. Both the air inlet valve 33 and the gas flow meter 34 are provided with a second connecting line 35. The end of the second connecting line 35 is provided with a second connecting plug 36. The second connecting plug 36 is plugged into and connected to the machine body 1, which facilitates the machine body 1 to control the gas flow meter 34 and the air inlet valve 33.

[0035] like Figure 5 As shown, the pressure stabilizing pump 4 has an air inlet 41 at its top, which facilitates air intake. The pressure stabilizing pump 4 has an exhaust pipe 42 on its side, with an adapter cap 43 on the exhaust pipe 42. The exhaust pipe 42 and adapter cap 43 are used to connect to the air inlet pipe 32. The pressure stabilizing pump 4 has a mounting plate 44 at its bottom, with multiple mounting holes 45 on its edge. The mounting plate 44 and mounting holes 45 facilitate fixing the position of the pressure stabilizing pump 4. The pressure stabilizing pump 4 has a third connecting line 46 on its side, with a third connecting plug 47 at its end. The third connecting line 46 and the third connecting plug 47 facilitate power connection and operation of the pressure stabilizing pump 4, making it convenient to use.

[0036] like Figure 6 As shown, the electric push rod 5 has a fourth connecting line 51 on its side, and a fourth connecting plug 52 at the end of the fourth connecting line 51; this facilitates connection between the electric push rod 5 and the machine body 1. The output end of the electric push rod 5 has a telescopic rod 54, and the bottom end of the telescopic rod 54 has a connecting plate 55. The telescopic rod 54, in conjunction with the connecting plate 55, facilitates connection between the output end of the electric push rod 5 and the upper detection cover 3. The end of the electric push rod 5 that is in contact with the machine body 1 has a fixing foot 53, which is connected to the machine body 1 by bolts.

[0037] Example 2

[0038] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a breathability testing device for women's underwear fabric production includes a body 1. A testing chamber 10 is provided inside the body 1, providing a stable testing environment for facilitating breathability testing of the fabric. A lower testing cover 2 and an upper testing cover 3 are installed inside the testing chamber 10, forming a sealed cavity for testing the fabric's breathability. An exhaust pipe 25 is provided on the lower testing cover 2 to discharge gas passing through the fabric. An exhaust valve 26 and a pressure sensor 27 are provided on the exhaust pipe 25 to detect the pressure inside the exhaust pipe 25, facilitating the calculation of the pressure difference across the fabric. An intake pipe 32 is provided on the side of the upper testing cover 3, equipped with an intake valve 33 and a gas flow meter 34. The intake pipe 32 injects gas into the sealed cavity, and the intake valve 33 and gas flow meter 34 control the constant gas flow rate injected into the sealed cavity. The exhaust valve 26, pressure sensor 27, intake valve 33, and gas flow meter 34 are all electrically connected to the machine body 1, facilitating the control of all components by the machine body 1. A pressure stabilizing pump 4 is located at the top of the machine body 1. The exhaust end of the pressure stabilizing pump 4 is connected to the intake pipe 32, facilitating the supply of air to the intake pipe 32 and ensuring a constant air pressure at the intake end. An electric push rod 5 is located at the top of the machine body 1. The output end of the electric push rod 5 is inserted into the detection chamber 10 and connected to the upper detection cover 3, facilitating the up-and-down movement of the upper detection cover 3 by the electric push rod 5. To ensure that the up-and-down movement of the upper detection cover 3 is not affected, the intake pipe 32 must be a flexible hose or partially corrugated pipe. The upper detection cover 3 and the lower detection cover 2 are made of transparent material, facilitating observation of the fabric detection status.

[0039] like Figure 2 As shown, the machine body 1 has multiple through holes 11 on its sides and top, which facilitate the passage of the air outlet pipe 25, air inlet pipe 32, and electric push rod 5 through or into the machine body 1. The machine body 1 has multiple connecting slots 12 on its inner side and top, facilitating connection between the machine body 1 and various components. Support feet 13 are located at the corners of the bottom surface of the machine body 1, ensuring stable placement. A control panel 16 is located on one side of the front end of the machine body 1, allowing for easy operation of the entire device. A mounting platform 14 is located at the bottom inner side of the detection chamber 10, with multiple mounting slots 15 for easy installation of the lower detection cover 2.

[0040] like Figure 3As shown, the lower detection cover 2 has a support column 22 at its bottom end, and a fixing plate 23 at the bottom end of the support column 22. The fixing plate 23 has multiple fixing holes 24, and the fixing plate 23 is connected to the mounting platform 14 by bolts. This structure facilitates the stable installation of the lower detection cover 2 on the mounting platform 14, ensuring the stable use of the lower detection cover 2. The top of the lower detection cover 2 has a pressure groove 21, which cooperates with the upper detection cover 3 to facilitate the formation of a sealed cavity between the lower detection cover 2 and the upper detection cover 3. The exhaust valve 26 and the pressure sensor 27 are both equipped with a first connecting line 28, and the end of the first connecting line 28 is equipped with a first connecting plug 29. The first connecting plug 29 is plugged into and connected to the machine body 1, facilitating the control of the exhaust valve 26 and the pressure sensor 27 by the machine body 1.

[0041] like Figure 4 As shown, a sealing ring 31 is provided at the bottom of the upper detection cover 3. The sealing ring 31 facilitates the sealing between the upper detection cover 3 and the lower detection cover 2. At the same time, the sealing ring 31 is also used to compress the fabric, ensuring that the fabric is kept between the upper detection cover 3 and the lower detection cover 2. Both the air inlet valve 33 and the gas flow meter 34 are provided with a second connecting line 35. The end of the second connecting line 35 is provided with a second connecting plug 36. The second connecting plug 36 is plugged into and connected to the machine body 1, which facilitates the machine body 1 to control the gas flow meter 34 and the air inlet valve 33.

[0042] like Figure 5 As shown, the pressure stabilizing pump 4 has an air inlet 41 at its top, which facilitates air intake. The pressure stabilizing pump 4 has an exhaust pipe 42 on its side, with an adapter cap 43 on the exhaust pipe 42. The exhaust pipe 42 and adapter cap 43 are used to connect to the air inlet pipe 32. The pressure stabilizing pump 4 has a mounting plate 44 at its bottom, with multiple mounting holes 45 on its edge. The mounting plate 44 and mounting holes 45 facilitate fixing the position of the pressure stabilizing pump 4. The pressure stabilizing pump 4 has a third connecting line 46 on its side, with a third connecting plug 47 at its end. The third connecting line 46 and the third connecting plug 47 facilitate power connection and operation of the pressure stabilizing pump 4, making it convenient to use.

[0043] like Figure 6 As shown, the electric push rod 5 has a fourth connecting line 51 on its side, and a fourth connecting plug 52 at the end of the fourth connecting line 51; this facilitates connection between the electric push rod 5 and the machine body 1. The output end of the electric push rod 5 has a telescopic rod 54, and the bottom end of the telescopic rod 54 has a connecting plate 55. The telescopic rod 54, in conjunction with the connecting plate 55, facilitates connection between the output end of the electric push rod 5 and the upper detection cover 3. The end of the electric push rod 5 that is in contact with the machine body 1 has a fixing foot 53, which is connected to the machine body 1 by bolts.

[0044] like Figure 1 As shown, it also includes a baffle 6. The front end of the detection cavity 10 of the machine body 1 is set with an opening. The baffle 6 is engaged at the front end of the detection cavity 10 of the machine body 1, which facilitates the installation and removal of the baffle 6 and makes it easy to use the baffle 6.

[0045] like Figure 7 As shown, the baffle 6 has a groove 61 at the top, which facilitates pulling the baffle 6 and makes it easy to install, remove, and use. The baffle 6 also has locking edges 62 on both sides, which engage with the machine body 1 to ensure sufficient stability. Furthermore, the baffle 6 has an observation window 63 in the middle, which allows for easy observation of the fabric inspection status.

[0046] Working Principle: During use, the fabric to be tested is placed between the upper detection cover 3 and the lower detection cover 2. Then, the electric push rod 5 is activated, causing the upper detection cover 3 to press down onto the lower detection cover 2. This not only compresses the fabric but also seals the area between the upper and lower detection covers 3 and 2 through the sealing ring 31. The machine body 1 is set to use a pressure-stabilizing pump 4 to inject gas into the inlet pipe 32 at a constant pressure and flow rate. Simultaneously, the gas flow meter 34 measures the gas flow rate injected into the sealed cavity, and the pressure sensor 27 measures the pressure of the gas exiting the outlet pipe 25. The pressure difference is obtained by subtracting the measured gas pressure in the outlet pipe 25 from the constant pressure in the inlet pipe 32. The effective area of ​​the test fabric formed after the upper and lower detection covers 3 and 2 compress the fabric is constant. Then, the pressure difference, the constant gas flow rate, and the effective area of ​​the test fabric are substituted into the formula:

[0047] R: Air permeability, in mm / s.

[0048] Q: Constant gas flow rate, in L / min.

[0049] A: The effective area of ​​the tested fabric, in cm². 2 ,

[0050] ΔP: Pressure difference between the two sides of the fabric, in Pa.

[0051] The air permeability of a fabric can be calculated using this formula.

[0052] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A breathability testing device for women's underwear fabric production, comprising a body (1), characterized in that, The inner side of the body (1) is provided with a detection chamber (10), and a lower detection cover (2) and an upper detection cover (3) are installed inside the detection chamber (10). A sealed cavity is formed between the lower detection cover (2) and the upper detection cover (3) for testing the air permeability of the fabric. The lower detection cover (2) is provided with an air outlet pipe (25), and the air outlet pipe (25) is provided with an air outlet valve (26) and a pressure sensor (27). The upper detection cover (3) is provided with an air inlet pipe (32) on its side. 32) is equipped with an air inlet valve (33) and a gas flow meter (34). The air outlet valve (26), pressure sensor (27), air inlet valve (33) and gas flow meter (34) are all electrically connected to the body (1). The top of the body (1) is equipped with a pressure stabilizing pump (4). The exhaust end of the pressure stabilizing pump (4) is connected to the air inlet pipe (32). The top of the body (1) is equipped with an electric push rod (5). The output end of the electric push rod (5) is inserted into the detection chamber (10) and connected to the upper detection cover (3).

2. The breathability testing device for women's underwear fabric production according to claim 1, characterized in that, The body (1) has multiple perforations (11) on its side and top, multiple connecting slots (12) on its inner side and top, and support feet (13) at the bottom corners of the body (1).

3. The breathability testing device for women's underwear fabric production according to claim 2, characterized in that, The front end of the machine body (1) is provided with a control panel (16), and the bottom of the inner side of the detection cavity (10) is provided with a mounting platform (14), and the mounting platform (14) is provided with multiple mounting slots (15).

4. The breathability testing device for women's underwear fabric production according to claim 3, characterized in that, The lower detection cover (2) is provided with a support column (22) at the bottom end, and a fixing plate (23) is provided at the bottom end of the support column (22). The fixing plate (23) is provided with multiple fixing holes (24). The fixing plate (23) and the mounting platform (14) are connected by bolts.

5. The breathability testing device for women's underwear fabric production according to claim 1, characterized in that, The lower detection cover (2) has a pressure groove (21) at the top. The air outlet valve (26) and the pressure sensor (27) are both provided with a first connecting line (28). The end of the first connecting line (28) is provided with a first connecting plug (29). The first connecting plug (29) is plugged into the body (1).

6. The breathability testing device for women's underwear fabric production according to claim 1, characterized in that, The upper detection cover (3) is provided with a sealing ring (31) at the bottom end. The air inlet valve (33) and the gas flow meter (34) are both provided with a second connecting line (35). The end of the second connecting line (35) is provided with a second connecting plug (36). The second connecting plug (36) is connected to the body (1).

7. The breathability testing device for women's underwear fabric production according to claim 1, characterized in that, The pressure stabilizing pump (4) has an air inlet (41) at its top, an exhaust pipe (42) on its side, an adapter cap (43) on the exhaust pipe (42), a mounting plate (44) at its bottom, multiple mounting holes (45) on the edge of the mounting plate (44), a third connecting line (46) on its side, and a third connecting plug (47) at the end of the third connecting line (46).

8. The breathability testing device for women's underwear fabric production according to claim 1, characterized in that, The electric push rod (5) has a fourth connecting line (51) on its side, and a fourth connecting plug (52) is provided at the end of the fourth connecting line (51); the output end of the electric push rod (5) has a telescopic rod (54), and the bottom end of the telescopic rod (54) has a connecting plate (55); the end of the electric push rod (5) that is in contact with the machine body (1) has a fixed foot (53), and the fixed foot (53) is connected to the machine body (1) by bolts.

9. A breathability testing device for women's underwear fabric production according to any one of claims 1-8, characterized in that, It also includes a baffle (6), with an opening at the front end of the detection cavity (10) of the body (1), and the baffle (6) is engaged at the front end opening of the detection cavity (10) of the body (1).

10. The breathability testing device for women's underwear fabric production according to claim 9, characterized in that, The baffle (6) has a groove (61) at the top and a retaining edge (62) on both sides. The retaining edge (62) is engaged with the body (1), and the baffle (6) has an observation window (63) in the middle.

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