A kind of air permeability detection device of textile fabric

Abstract

The utility model discloses a kind of ventilation detection devices of textile fabric, it is related to the technical field of ventilation detection device, solve the detection device fan position is fixed, cause when checking air tightness, the wind that blows is dispersed, can cause influence to adjacent ribbon, to cause the detection of air tightness to appear mistake, reduce the use efficiency of the device Problem, including box and second baffle, the inside of the box is provided with mounting cavity, the inside fixed mounting of mounting cavity has first filter plate, the upper end of first filter plate is provided with square frame, and the bottom of square frame is provided with opening, and the inside fixed mounting of opening has third filter plate, the cooperation between the multiple first baffle and second baffle of being set, the first baffle and second baffle between different positions can be placed fabric and carry out ventilation detection, strengthen the accuracy of detection.

Description

Technical Field

[0001] This utility model relates to the technical field of air permeability testing devices, specifically an air permeability testing device for textile fabrics. Background Technology

[0002] The air permeability testing device for textile fabrics is a professional device used to measure the ability of fabrics to allow air to pass through. By simulating airflow conditions in actual use environments, it quantifies the air permeability performance indicators of fabrics (such as air permeability rate, air permeability, etc.), providing key data support for the research and development, production, quality control and application of textile fabrics.

[0003] A search revealed Chinese patent publication number CN218496700U, which discloses a device for testing the air permeability of breathable textile fabrics. The device includes a bellows, a fan placed on the bottom surface of the bellows, and a uniform air distribution plate positioned parallel above the fan. The uniform air distribution plate is fixedly connected to the inner wall of the bellows on both sides. A filter plate is also fixedly connected to the inner wall of the bellows on both sides. The fabric is stretched taut and placed directly above the bellows. The uniform air distribution plate ensures more even airflow, while the filter plate reduces dust generation. After passing through the textile fabric, the airflow causes a ribbon inside the testing chamber to move upwards. Observing the ribbon, the higher the ribbon moves, the higher the air permeability of the fabric below it; the lower the ribbon moves, the lower the air permeability. Through the design of multiple air permeability chambers and ribbons, air permeability testing can be performed on various parts of the textile fabric. Each part of the textile fabric corresponds to an independent air permeability chamber and ribbon, improving the accuracy of fabric air permeability testing.

[0004] However, the fan position of the device is fixed, which causes the air blown out to be dispersed when checking the air tightness. This can affect adjacent ribbons, resulting in errors in the air tightness test and reducing the efficiency of the device. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a device for testing the air permeability of textile fabrics. This solves the problem that the fixed position of the fan in the testing device leads to dispersed airflow during air tightness checks, which can affect adjacent ribbons, causing errors in air tightness testing and reducing the efficiency of the device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a device for testing the air permeability of textile fabrics, comprising a housing and a second baffle. The housing has an internal mounting cavity, inside which a first filter plate is fixedly mounted. A square frame is mounted on the upper end of the first filter plate, and an opening is formed at the bottom of the square frame. A third filter plate is fixedly mounted inside the opening. Second baffles are fixedly mounted at equal intervals on the upper end of the third filter plate. A fan is fixedly mounted on the upper end of the housing. A flexible hose is fixedly connected to the air outlet of the fan. A plastic duct is fixedly connected to the lower end of the flexible hose. One side of the lower end of the plastic duct passes through the top plate of the housing and the upper end of the square frame, extending into the interior of the square frame, and is fixedly connected to an air outlet pipe. The air outlet pipe is square, with a length equal to the length of the second baffle and a width equal to the distance between two adjacent second baffles.

[0007] Preferably, a plurality of first baffles are fixedly installed at equal intervals at the lower end of the mounting cavity, and the upper and lower ends of the first baffles are fixedly connected between the first filter plate and the bottom surface of the mounting cavity. The positions of the first baffles and the second baffles correspond to each other, and a second filter plate is fixedly installed between adjacent first baffles. A plurality of ribbons are fixedly installed at equal intervals on the front sidewall of the second filter plate, so that the air passing through the textile fabric can enter between two adjacent first baffles respectively.

[0008] Preferably, the rear end sidewall between the first filter plate and the bottom of the mounting cavity is inclined, and the inclined surface faces upward, so that the incoming air can be discharged to the outside of the second filter plate.

[0009] Preferably, a cylinder is fixedly installed at the upper end of the housing, the output shaft of the cylinder passes through the interior of the upper end of the housing and is fixedly connected to the bottom of the square frame, and limit rods are symmetrically fixedly installed at both ends of the mounting cavity and pass through the interior of both ends of the first filter plate, and both ends of the square frame are slidably sleeved on the outside of the limit rods, so as to facilitate the stable up and down movement of the square frame.

[0010] Preferably, the front and rear ends of the third filter plate are provided with sliding rods, the lower ends of the sliding rods are fixedly connected to the upper ends of the second baffle, and the lower ends of the air outlet pipes are slidably sleeved on the outside of the sliding rods, thereby facilitating the smooth movement of the air outlet pipes.

[0011] Preferably, the upper interior of the housing and the upper interior of the square frame are respectively provided with a second movable hole and a first movable hole. The first movable hole and the second movable hole are of equal size, and the plastic air ducts pass through the interior of the second movable hole and the first movable hole respectively, and are slidably connected to the inner sidewalls of the first movable hole and the second movable hole respectively, so as to facilitate the movement of the plastic air ducts.

[0012] Preferably, a linear motor is fixedly installed on the upper side wall inside the square frame, and a connecting block is fixedly installed on the moving end of the linear motor. The connecting block is fixedly connected to the upper end of the air outlet pipe, thereby facilitating the movement of the air outlet pipe.

[0013] This invention provides a device for testing the air permeability of textile fabrics. It has the following beneficial effects:

[0014] 1. The air permeability testing device for textile fabrics, when used, can perform air permeability testing on fabrics placed between the first and second baffles at different positions by cooperating with multiple first and second baffles, thereby enhancing the accuracy of the test.

[0015] 2. The air permeability testing device for textile fabrics, when used, uses a linear motor to drive the air outlet pipe to move, which can sequentially blow air onto the fabric placed in different positions, making it convenient to observe the textile fabric in different positions. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0018] Figure 3 This utility model Figure 2 Enlarged structural diagram of section A.

[0019] In the diagram, 1. Box body; 2. Mounting cavity; 3. First filter plate; 4. First baffle; 5. Second filter plate; 6. Streamer; 7. Square frame; 8. First moving hole; 9. Second moving hole; 10. Cylinder; 11. Fan; 12. Plastic air duct; 13. Flexible hose; 14. Linear motor; 15. Third filter plate; 16. Second baffle; 17. Slide rod; 18. Connecting block; 19. Air outlet duct; 20. Limiting rod. Detailed Implementation

[0020] 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.

[0021] Example 1

[0022] Please see Figure 1-3This utility model provides a device for testing the air permeability of textile fabrics, including a housing 1 and a second baffle 16. The housing 1 has an internal mounting cavity 2, inside which a first filter plate 3 is fixedly mounted. A square frame 7 is mounted on the upper end of the first filter plate 3, and an opening is provided at the bottom of the square frame 7. A third filter plate 15 is fixedly mounted inside the opening. The second baffle 16 is fixedly mounted at equal intervals on the upper end of the third filter plate 15. A fan 11 is fixedly mounted on the upper end of the housing 1. A flexible hose 13 is fixedly connected to the air outlet of the fan 11. A plastic duct 12 is fixedly connected to the lower end of the flexible hose 13. One side of the lower end of the plastic duct 12 passes through the top plate of the housing 1 and the upper end of the square frame 7, extending into the interior of the square frame 7, and is fixedly connected to an air outlet pipe 19. The air outlet pipe 19 is square and its length is equal to the length of the second baffle 16. The width is equal to the distance between two adjacent second baffles 16. A linear motor 14 is fixedly installed on the upper side wall of the square frame 7. A connecting block 18 is fixedly installed on the moving end of the linear motor 14. The connecting block 18 is fixedly connected to the upper end of the air outlet pipe 19. When testing the air permeability of the textile fabric, the textile fabric is first laid flat on the first filter plate 3. Then, the cylinder 10 is opened to move the square frame 7 downward until the third filter plate 15 squeezes the textile fabric. Under the clamping of the first filter plate 3 and the third filter plate 15, the textile fabric can be placed stably. Then, the fan 11 and the linear motor 14 are turned on, so that the linear motor 14 drives the air outlet pipe 19 to move. The blown air blows through the air outlet pipe 19 to the adjacent second baffles 16 in sequence, which facilitates the blowing of the placed textile fabric.

[0023] Example 2

[0024] To facilitate effective observation of air permeability, in this embodiment, as follows: Figure 1-3As shown, multiple first baffles 4 are fixedly installed at equal intervals at the lower end of the mounting cavity 2, and the upper and lower ends of the first baffles 4 are fixedly connected between the first filter plate 3 and the bottom surface of the mounting cavity 2. The positions of the first baffles 4 and the second baffles 16 correspond to each other, and a second filter plate 5 is fixedly installed between adjacent first baffles 4. Multiple ribbons 6 are fixedly installed at equal intervals on the front sidewall of the second filter plate 5. The rear sidewall between the first filter plate 3 and the bottom of the mounting cavity 2 is inclined, and the inclined surface faces upward. A cylinder 10 is fixedly installed at the upper end of the housing 1. The output shaft of the cylinder 10 passes through the interior of the upper end of the housing 1 and is fixedly connected to the bottom of the square frame 7. Limiting rods 20 are symmetrically fixedly installed at both ends of the mounting cavity 2 and pass through the interior of both ends of the first filter plate 3. Both ends of the square frame 7 are slidably sleeved on the outside of the limiting rods 20. Sliding rods 17 are provided at both the front and rear ends above the third filter plate 15. The lower ends of the sliding rods 17 are respectively connected to the bottom surface of the first filter plate 3 and the bottom surface of the first filter plate 3. The upper end of the second baffle 16 is fixedly connected, and the lower end of the air outlet pipe 19 is slidably sleeved on the outside of the slide rod 17. The upper end of the housing 1 and the upper end of the square frame 7 are respectively provided with a second moving hole 9 and a first moving hole 8. The first moving hole 8 and the second moving hole 9 are equal in size, and the plastic air pipe 12 passes through the interior of the second moving hole 9 and the first moving hole 8, and is slidably connected to the inner side wall of the first moving hole 8 and the second moving hole 9, respectively. The incoming air passes through the textile fabric and enters between the adjacent first baffle 4 at the lower end. The inclined side wall at the rear end allows the incoming air to be discharged towards the front end of the first baffle 4, thereby causing the ribbon 6 to flutter. The swing amplitude of the ribbon 6 can be effectively observed. At the same time, when the air outlet pipe 19 moves, it fits against the upper side wall of the second baffle 16, and the slide rod 17 can effectively limit its movement, improving the stability of the position of the air outlet pipe 19 when it moves.

[0025] It should be noted that, in this embodiment, when testing the air permeability of textile fabrics, such as... Figure 1-3As shown, the textile fabric is first laid flat on the first filter plate 3. Then, the cylinder 10 is opened, causing the square frame 7 to move downwards until the third filter plate 15 squeezes the textile fabric. Under the clamping of the first filter plate 3 and the third filter plate 15, the textile fabric can be placed stably. Then, the blower 11 and the linear motor 14 are turned on, causing the linear motor 14 to drive the air outlet pipe 19 to move. The blown air blows through the air outlet pipe 19 to the adjacent second baffle 16 in sequence, which facilitates the blowing of the placed textile fabric. The incoming air passes through the textile fabric and enters the lower adjacent first baffle 4. The inclined side wall at the rear end allows the incoming air to be discharged to the front end of the first baffle 4, thereby causing the ribbon 6 to flutter. The swing amplitude of the ribbon 6 can be effectively observed. At the same time, when the air outlet pipe 19 moves, it fits against the upper side wall of the second baffle 16. The slide rod 17 can effectively limit its movement, improving the stability of the position of the air outlet pipe 19.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for testing the air permeability of textile fabrics, characterized in that: The device includes a housing (1) and a second baffle (16). The housing (1) has an internal mounting cavity (2). A first filter plate (3) is fixedly installed inside the mounting cavity (2). A square frame (7) is provided at the upper end of the first filter plate (3), and an opening is provided at the bottom of the square frame (7). A third filter plate (15) is fixedly installed inside the opening. The second baffle (16) is fixedly installed at equal intervals at the upper end of the third filter plate (15). A fan (11) is fixedly installed at the upper end of the housing (1). The air outlet of the fan (11) is fixedly connected to a flexible hose (13), and the lower end of the flexible hose (13) is fixedly connected to a plastic air duct (12). The lower end of the plastic air duct (12) extends through the top plate of the box (1) and the upper end of the square frame (7) to the interior of the square frame (7), and is fixedly connected to an air outlet pipe (19). The air outlet pipe (19) is square, and its length is equal to the length of the second baffle (16), and its width is equal to the distance between two adjacent second baffles (16).

2. The air permeability testing device for textile fabrics according to claim 1, characterized in that: Multiple first baffles (4) are fixedly installed at equal intervals at the lower end of the mounting cavity (2), and the upper and lower ends of the first baffles (4) are fixedly connected between the first filter plate (3) and the bottom surface of the mounting cavity (2). The positions of the first baffles (4) and the second baffles (16) correspond to each other, and a second filter plate (5) is fixedly installed between adjacent first baffles (4). Multiple ribbons (6) are fixedly installed at equal intervals on the front side wall of the second filter plate (5).

3. The air permeability testing device for textile fabrics according to claim 2, characterized in that: The rear end sidewall between the first filter plate (3) and the bottom of the mounting cavity (2) is inclined, and the inclined surface faces upward.

4. The air permeability testing device for textile fabrics according to claim 1, characterized in that: A cylinder (10) is fixedly installed at the upper end of the housing (1). The output shaft of the cylinder (10) passes through the upper end of the housing (1) and is fixedly connected to the bottom of the square frame (7). Limiting rods (20) are symmetrically fixedly installed at both ends of the mounting cavity (2) and pass through the interior of both ends of the first filter plate (3). Both ends of the square frame (7) are slidably sleeved on the outside of the limiting rods (20).

5. The air permeability testing device for textile fabrics according to claim 1, characterized in that: The third filter plate (15) has sliding rods (17) at both the front and rear ends. The lower ends of the sliding rods (17) are fixedly connected to the upper ends of the second baffle (16), and the lower ends of the air outlet pipe (19) are slidably sleeved on the outside of the sliding rods (17).

6. The air permeability testing device for textile fabrics according to claim 1, characterized in that: The upper interior of the box (1) and the upper interior of the square frame (7) are respectively provided with a second moving hole (9) and a first moving hole (8). The first moving hole (8) and the second moving hole (9) are of equal size, and the plastic air duct (12) passes through the interior of the second moving hole (9) and the first moving hole (8) respectively, and is slidably connected to the inner side wall of the first moving hole (8) and the second moving hole (9) respectively.

7. The air permeability testing device for textile fabrics according to claim 1, characterized in that: A linear motor (14) is fixedly installed on the upper side wall inside the square frame (7). A connecting block (18) is fixedly installed on the moving end of the linear motor (14). The connecting block (18) is fixedly connected to the upper end of the air outlet pipe (19).

Images