A fabric air permeability detection device

Abstract

The utility model relates to the technical field of fabric detection, and discloses a fabric air permeability detection device, including a blowing part, the blowing part is cylindrical, one end of which is used for air intake, and the other end is used for limiting the fabric; an observation part, which is connected to the blowing part, and the observation part can display the state of the air pressure inside the blowing part when the blowing part blows air. The utility model can limit the fabric easily and the air outlet is easy to adjust, and the fabric is wrapped on the outside of the limiting circular frame, the limiting circular frame, and the gas penetrates the fabric. Due to the different air permeabilities of the limiting circular frame and the fabric, the pressure inside the cylinder changes, and pushes downward to achieve a change in the liquid level inside the connecting pipe 2, which can be detected intuitively.

Description

Technical Field

[0001] The utility model relates to the technical field of fabric detection, in particular to a fabric air permeability detection device. Background Art

[0002] Testing the breathability of fabrics is an important step in evaluating fabric performance, especially in the fields of clothing, outdoor products and sports equipment. Breathability not only affects wearing comfort, but is also directly related to the functionality and durability of the product. The breathability of fabrics is directly related to the heat and moisture exchange between the human body and the external environment. Fabrics with good breathability can help perspiration, keep the skin dry, and improve wearing comfort. In outdoor and sports occasions, breathability is even more related to the body's temperature regulation and sports performance. Factors affecting fabric breathability include fiber type, yarn structure, weaving density, finishing process, etc. For example, natural fibers such as cotton and linen usually have good breathability, while synthetic fibers such as polyester and nylon are relatively poor. In addition, the looseness and thickness of the fabric will also affect the breathability.

[0003] In air permeability testing, most of the methods are to evaluate the air permeability of fabrics by measuring the air flow rate through a unit area of ​​fabric per unit time under a certain pressure difference. In order to observe the test intuitively and improve the accuracy of the test, some improvements are proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a fabric air permeability detection device to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a fabric air permeability detection device, comprising

[0006] The blowing part is cylindrical, one end of which is used for air intake and the other end is used for limiting the position of the cloth;

[0007] The observation part is connected to the air blowing part, and the observation part can display the state of the air pressure inside the air blowing part when the air blowing part blows air.

[0008] Preferably, the blowing part includes a cylinder, and the edges of both ends of the cylinder are arranged in partitions. A blowing barrel is fixed to one end of the cylinder, and the blowing barrel is used for air intake. A U-shaped frame is fixed to the other end of the cylinder, and a slide is provided on the inner side of the U-shaped frame. A limiting circular frame is clamped inside the U-shaped frame for limiting the position of the fabric.

[0009] Preferably, the limiting circular frame comprises a circular ring layer, a sector-shaped piece and a rubber layer for sealing;

[0010] An inner layer is provided inside the circular ring layer, the axis of the inner layer coincides with the axis of the circular ring layer, a connecting rod extending outward is fixed between the inner layer and the circular ring layer, the fan-shaped piece is located between the inner layer and the circular ring layer, and is clamped between the connecting rods on both sides, and the two edges of the outer side surface of the fan-shaped piece respectively resist the inner layer and the circular ring layer.

[0011] Preferably, a notch 1 is formed on the outer sides of the circular ring layer, the inner layer and the connecting rod, the notch 1 extends along the direction of the connecting rod, and the length and width of the notch 1 are greater than the length and width of the connecting rod;

[0012] The two sides of the sector-shaped piece are both provided with a second notch. After the sector-shaped piece is matched with the circular ring layer, the inner layer and the connecting rod, the second notch is overlapped with the first notch, and the rubber layer is fitted in the overlapped second notch and the first notch.

[0013] Preferably, the observation part includes connecting pipe one, a water storage bucket and connecting pipe two, the connecting pipe one and the connecting pipe two are both connected to the water storage bucket, and the three are internally connected, the upper end of the connecting pipe one is fixed to the cylinder, and the two are connected.

[0014] Preferably, the water storage barrel is filled with liquid, and the water storage barrel is sealed. After air is taken into the connecting pipe one, the liquid inside the connecting pipe two is squeezed, and the liquid level changes.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] (1) The utility model can limit the fabric and adjust the air outlet, so that the fabric is covered on the outside of the limiting circular frame. The limiting circular frame allows gas to penetrate the fabric. Due to the different air permeabilities of the limiting circular frame and the fabric, the pressure inside the cylinder changes, pushing downward, thereby changing the liquid level inside the connecting pipe 2, which can be detected intuitively.

[0017] (2) The utility model ensures sealing under the action of pressure and can detect the liquid surface visually. The two edges of the outer side of the sector-shaped piece are respectively against the inner layer and the circular ring layer, and the rubber layer blocks both the second and the first notch. When the internal pressure increases, the pushing force on the rubber layer and the sector-shaped piece increases, making them more closely sealed and maintaining the accuracy of the results. The area of ​​the sector-shaped piece can be changed by installing and removing it, and the change state can be controlled, which is convenient for testing different fabrics. The fabric will cover the limit circular frame to facilitate the fixing of the fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2This is a schematic diagram of the separation structure of the blowing part of the utility model;

[0020] Figure 3 This is a schematic diagram of the separation structure of the limited circular frame of the utility model;

[0021] Figure 4 It is a partial enlarged structural schematic diagram of the limiting circular frame of the utility model.

[0022] In the figure: 1. blowing part; 11. cylinder; 12. partition; 13. blowing barrel; 14. U-shaped frame; 15. limiting circular frame; 151. circular ring layer; 152. inner layer; 153. connecting rod; 154. notch 1; 155. fan-shaped piece; 156. notch 2; 157. rubber layer; 2. observation part; 21. connecting pipe 1; 22. water storage barrel; 23. connecting pipe 2. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 The utility model provides a technical solution: a fabric air permeability detection device, comprising

[0025] The blowing part 1 is cylindrical, one end of which is used for air intake and the other end is used for limiting the position of the cloth;

[0026] The observation part 2 is connected to the air blowing part 1 , and when the air blowing part 1 is blowing air, the observation part 2 can display the state of the air pressure inside the air blowing part 1 .

[0027] The blowing part 1 includes a cylinder 11, and the edges of both ends of the cylinder 11 are provided with partitions 12. A blowing barrel 13 is fixed at one end of the cylinder 11, and the blowing barrel 13 is used for air intake. A U-shaped frame 14 is fixed at the other end of the cylinder 11. The inner side of the U-shaped frame 14 has a slideway, and the U-shaped frame 14 has a limiting circular frame 15 for limiting the fabric inside. The limiting circular frame 15 is covered by the fabric to facilitate the fabric to be limited.

[0028] The limiting circular frame 15 includes a circular ring layer 151, a sector-shaped piece 155 and a rubber layer 157 for sealing;

[0029] An inner layer 152 is provided inside the circular ring layer 151, and the axis of the inner layer 152 coincides with the axis of the circular ring layer 151. A connecting rod 153 extending outward is fixed between the inner layer 152 and the circular ring layer 151. The fan-shaped piece 155 is located between the inner layer 152 and the circular ring layer 151, and is clamped between the connecting rods 153 on both sides. The two edges of the outer side of the fan-shaped piece 155 respectively resist the inner layer 152 and the circular ring layer 151, so that the fan-shaped piece 155 squeezes the inner layer 152 and the circular ring layer 151 from the inside to the outside, and the fit is more firmly under the action of pressure.

[0030] A notch 154 is formed on the outer sides of the circular ring layer 151, the inner layer 152 and the connecting rod 153. The notch 154 extends along the direction of the connecting rod 153, and the length and width of the notch 154 are greater than the length and width of the connecting rod 153.

[0031] Notch 2 156 is provided on both sides of the sector-shaped piece 155. After the sector-shaped piece 155 is matched with the circular ring layer 151, the inner layer 152 and the connecting rod 153, the notch 2 156 and the notch 1 154 are overlapped, and the rubber layer 157 fits in the overlapped notch 2 156 and the notch 1 154. The overlap of notch 2 156 and notch 1 154 sandwiches the rubber layer 157 inside the two, so that the rubber layer 157 fits in a sealed manner and fits more tightly under the action of pressure.

[0032] The observation part 2 includes a connecting pipe 1 21, a water storage barrel 22 and a connecting pipe 2 23. The connecting pipe 1 21 and the connecting pipe 2 23 are both connected to the water storage barrel 22, and the three are internally connected. The upper end of the connecting pipe 1 21 is fixed to the cylinder 11, and the two are connected. When the pressure inside the cylinder 11 changes, the liquid can be pushed to make the liquid level be in different states, which is convenient for intuitive detection.

[0033] The water storage barrel 22 is filled with liquid, and the water storage barrel 22 is sealed. After air enters the connecting pipe 1 21 , the liquid inside the connecting pipe 2 23 is squeezed, and the liquid level changes.

[0034] When in use, the limiting circular frame 15 is removed, and then the sector piece 155 is removed. The number of removed sectors is the area of ​​the fabric to be tested for air permeability. Then, the fabric is wrapped on the outside of the limiting circular frame 15, and then the limiting circular frame 15 is clamped in the U-shaped frame 14. The air is blown using the blowing device on the outside of the blowing barrel 13. At the same time, the blowing port of the blowing barrel 13 and the blowing device are sealed to prevent gas leakage. Furthermore, the gas penetrates the fabric. Since the air permeability of the limiting circular frame 15 and the fabric is different, the pressure inside the cylinder 11 changes, and pushes downward to achieve a change in the liquid level inside the connecting pipe 23, which can be detected intuitively.

[0035] Secondly, the limiting circular frame 15 is set to install and remove the fan-shaped piece 155, changing the unit area of ​​air permeability. Next, the two edges of the outer side of the fan-shaped piece 155 are respectively against the inner layer 152 and the circular ring layer 151, and the rubber layer 157 blocks both the notch 2 156 and the notch 1 154, and the edge of the fan-shaped piece 155 is sealed. When the internal pressure increases, the pushing force on the rubber layer 157 and the fan-shaped piece 155 increases, making them more closely fitted and sealed, maintaining the accuracy of the results, and the installation and removal area of ​​the fan-shaped piece 155 can be changed, and the change state can be controlled, which is convenient for testing different fabrics. At the same time, the fabric covers the limiting circular frame 15 to fix the fabric.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fabric air permeability detection device, characterized in that: include The blowing part (1) is cylindrical, one end of which is used for air intake and the other end of which is used for limiting the position of the cloth; The observation part (2) is connected to the air blowing part (1), and when the air blowing part (1) is blowing, the observation part (2) can display the state of the internal air pressure of the air blowing part (1).

2. The fabric air permeability detection device according to claim 1, characterized in that: The blowing part (1) comprises a cylinder (11), both ends of the cylinder (11) are provided with partitions (12), one end of the cylinder (11) is fixed with a blowing barrel (13), the blowing barrel (13) is used for air intake, and the other end of the cylinder (11) is fixed with a U-shaped frame (14), the inner side of the U-shaped frame (14) is provided with a slideway, and the U-shaped frame (14) is internally clamped with a limiting circular frame (15) for limiting the position of the fabric.

3. The fabric air permeability detection device according to claim 2, characterized in that: The limiting circular frame (15) comprises a circular ring layer (151), a sector-shaped piece (155) and a rubber layer (157) for sealing; An inner layer (152) is provided inside the circular ring layer (151), and the axis of the inner layer (152) coincides with the axis of the circular ring layer (151). A connecting rod (153) extending outward is fixed between the inner layer (152) and the circular ring layer (151). The fan-shaped piece (155) is located between the inner layer (152) and the circular ring layer (151), and is clamped between the connecting rods (153) on both sides. The two edges of the outer side surface of the fan-shaped piece (155) respectively resist the inner layer (152) and the circular ring layer (151).

4. The fabric air permeability detection device according to claim 3, characterized in that: A notch (154) is provided on the outer sides of the circular ring layer (151), the inner layer (152) and the connecting rod (153); the notch (154) extends along the direction of the connecting rod (153); and the length and width of the notch (154) are greater than the length and width of the connecting rod (153); The two side edges of the sector-shaped piece (155) are provided with a second notch (156). After the sector-shaped piece (155) is matched with the circular ring layer (151), the inner layer (152) and the connecting rod (153), the second notch (156) and the first notch (154) are overlapped, and the rubber layer (157) is fitted in the overlapped second notch (156) and the first notch (154).

5. The fabric air permeability detection device according to claim 2, characterized in that: The observation part (2) comprises a connecting pipe 1 (21), a water storage bucket (22) and a connecting pipe 2 (23); the connecting pipe 1 (21) and the connecting pipe 2 (23) are both connected to the water storage bucket (22), and the three are internally connected; the upper end of the connecting pipe 1 (21) is fixed to the cylinder (11), and the two are arranged in a connected manner.

6. The fabric air permeability detection device according to claim 5, characterized in that: The water storage barrel (22) is filled with liquid, and the water storage barrel (22) is sealed. After air is introduced into the first connecting pipe (21), the liquid inside the second connecting pipe (23) is squeezed, and the liquid level changes.

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