Textile fabric air permeability testing device

Abstract

The invention provides a textile fabric air permeability testing device, and relates to the field of textile fabric air permeability testing. Power assemblies are fixedly arranged on the two sides of the test box, and a driving structure is fixedly arranged between the two power assemblies; an acquisition assembly is arranged on the inner side of the driving structure, and an adjusting assembly is fixedly arranged on the outer side of the test box; a clamping structure is fixedly arranged on the outer side of the adjusting assembly, and the number of the clamping structures is two. A cloth main body is arranged between the two clamping structures, the bottom surface of the cloth main body is attached to the top of the test box, by arranging the driving structure and the collection assembly, a test area of the cloth main body can be conveniently closed, the influence of external airflow on a test result is prevented, and the problem that the test result is not influenced in the aspect of closing the test area is solved. And the device cannot provide reliable sealing measures and cannot effectively isolate interference of external airflow.

Description

Technical Field

[0001] The present invention relates to the technical field of air permeability testing of textile fabrics, and in particular to an air permeability testing device for textile fabrics. Background Art

[0002] In the textile industry, the breathability of textile fabrics is a crucial performance indicator; the quality of breathability directly affects the performance and comfort of fabrics in various application scenarios. Therefore, in the production process of textile fabrics, it is particularly important to conduct accurate and comprehensive breathability testing on them.

[0003] In the field of textile material air permeability testing, existing testing equipment has obvious deficiencies in two key aspects: fabric fixation and test area sealing. In terms of fabric fixation, the device lacks an effective tightening mechanism, which cannot ensure that the fabric always remains flat and unstacked during the test process. This may cause the fabric's air permeability performance at different positions to be affected by local deformation, and thus the test results may not truly reflect the fabric's overall air permeability performance. In terms of test area sealing, the device fails to provide reliable sealing measures and cannot effectively isolate the interference of external airflow. The instability of external airflow may introduce additional variables, which have a significant impact on the test results and reduce the reliability and accuracy of the test data. Summary of the Invention

[0004] In view of this, the present invention provides a textile fabric air permeability testing device, which has a driving structure and a collection component, which can conveniently seal the test area of ​​the fabric body to prevent external airflow from affecting the test results; at the same time, the use of an adjustment component and a clamping structure can ensure that the fabric always remains flat and non-stacked during the test process.

[0005] The present invention provides a textile fabric air permeability testing device, specifically comprising: a test box; power assemblies fixedly provided on both sides of the test box, and the power assemblies are symmetrically provided at two locations, and a driving structure is fixedly provided between the two power assemblies; a collection assembly is provided on the inner side of the driving structure, and an adjustment assembly is fixedly provided on the outer side of the test box; a clamping structure is fixedly provided on the outer side of the adjustment assembly, and the clamping structures are provided at two locations, and the other one is fixedly provided on the outer side of the test box; a fabric body is provided between the two clamping structures, and the bottom surface of the fabric body is in contact with the top of the test box; The driving structure includes: a pressure frame, a guide rod and a guide seat; the pressure frame is movably arranged directly above the test box, and the bottom of the pressure frame is in contact with the upper surface of the fabric body; the guide rod is fixedly arranged on both sides of the top of the pressure frame; the guide seat is slidably arranged on the outside of the guide rod; the collection component includes: a collection frame and a flow rate sensor; the collection frame is fixedly arranged between the two guide seats, and the collection frame is arranged in an inverted U-shaped structure, and the collection frame is slidably arranged on the inside of the pressure frame; the flow rate sensor is fixedly arranged on the inside of the collection frame, and the flow rate sensor is arranged in a straight line.

[0006] In at least some embodiments, support frames are fixedly provided on both sides of the bottom of the test box, and an air pump is fixedly provided on the outside of the support frame, and an air inlet pipe is connected to the air outlet of the air pump, the other end of the air inlet pipe is connected to the interior of the test box, and a sealing groove is provided on the top side of the test box; a pressure sensor and a rectifier grid are fixedly provided inside the test box, and the rectifier grid is located between the pressure sensor and the air outlet end of the air inlet pipe; a control module is fixedly provided on the outside of the test box, and the control module is electrically connected to the pressure sensor and the air pump.

[0007] In at least some embodiments, the power assembly includes: a fixed seat, a cylinder and a power seat; the fixed seat is fixedly arranged on both sides of the test box; the cylinder is fixedly arranged inside the fixed seat; the power seat is fixedly arranged at the top of the telescopic end of the cylinder, and the power seat is fixedly arranged on the outside of the pressure frame.

[0008] In at least some embodiments, the driving structure also includes: a sealing ring and a ball; the sealing ring is fixedly arranged at the bottom of the pressure frame, and the sealing ring is located directly above the sealing groove; the ball is rotatably arranged inside the guide seat, and the ball is arranged in a circular array, and the outer side of the ball is in contact with the outer side of the guide rod.

[0009] In at least some embodiments, the driving structure further includes: a driving frame, a reciprocating screw, a driving seat and a protrusion; the driving frame is fixedly arranged at the top of the pressure frame; the reciprocating screw is rotatably arranged inside the driving frame, and the reciprocating screw is fixedly arranged at the shaft end of the motor device, and the motor device is fixedly arranged on the outside of the driving frame; the driving seat is slidably arranged on the outside of the reciprocating screw, and a protrusion is provided in the driving seat that slides with the spiral groove of the reciprocating screw, and the driving seat is fixedly arranged on the top of the collection frame.

[0010] In at least some embodiments, the acquisition component also includes: an information acquisition module and a wireless transmission module; the information acquisition module and the wireless transmission module are both fixedly arranged on the top of the acquisition frame, and the information acquisition module and the wireless transmission module are electrically connected; the information acquisition module and the flow rate sensor are electrically connected, and the wireless transmission module and the remote receiving terminal are electrically connected.

[0011] In at least some embodiments, the adjustment assembly includes: an adjustment frame, a double-headed screw, an adjustment seat, an adjustment plate and a connecting seat; the adjustment frame is fixedly arranged on one side of the test box; the double-headed screw is rotatably arranged inside the adjustment frame, and a handwheel is fixedly arranged on the top of the double-headed screw; the adjustment seat is slidably arranged inside the adjustment frame, and the adjustment seat is arranged on the outside of the double-headed screw through a threaded connection; the adjustment plate is rotatably arranged on the outside of the adjustment seat; the connecting seat is rotatably arranged on the outside of the adjustment plate, and the connecting seat, the adjustment plate and the adjustment seat are symmetrically arranged in two groups.

[0012] In at least some embodiments, the clamping structure includes: a clamping frame, a receiving frame, a threaded cylinder, a threaded rod, a clamping seat and a clamping plate; the clamping frame is provided with two groups, one group of clamping frames is fixedly provided between the two groups of connecting seats, and the other group of clamping frames is fixedly provided on the other side of the test box; the receiving frame is fixedly provided on the outside of the clamping frame; the threaded cylinder is rotatably provided inside the receiving frame; the threaded rod is provided inside the threaded cylinder through a threaded connection; the clamping seat is fixedly provided on the top end of the threaded rod; the clamping plate is fixedly provided on the outside of the clamping seat, and the fabric body is clamped between the clamping plate and the clamping frame.

[0013] In at least some embodiments, the clamping structure further includes: an anti-slip groove and an anti-slip protrusion; the anti-slip groove is opened inside the top side of the clamping frame; the anti-slip protrusion is integrally arranged at the bottom of the splint, and the anti-slip protrusion is located directly above the anti-slip groove, and the anti-slip protrusion and the anti-slip groove are arranged in a straight line.

[0014] In at least some embodiments, the clamping structure further includes: a handle and a sprocket; the handle is fixedly arranged at the bottom of the threaded barrel in a circular array; the sprocket is fixedly arranged on the outside of the threaded barrel, and a chain is installed on the outside of the sprocket.

[0015] Beneficial effects 1. The present invention is capable of clamping and fixing the two ends of the fabric body by providing a clamping frame and a clamping plate as well as an anti-slip groove and an anti-slip protrusion. At the same time, the adjustment component can be used to adjust the distance between the two sets of clamping frames, thereby keeping the fabric body in a taut and non-stacked state, which helps to prevent the air permeability of the fabric at different positions from being affected by local deformation.

[0016] 2. The present invention, by providing a power assembly, can move the pressure frame up and down, so that the pressure frame can seal the lower part of the test area of ​​the fabric body through the sealing ring, sealing groove and test box. At the same time, the collection frame can seal the upper part of the test area of ​​the fabric body. Therefore, the test area of ​​the fabric body can be conveniently sealed to prevent external airflow from affecting the test results.

[0017] 3、The present application, by setting up reciprocating screw rod and protrusion and drive seat, can make the collecting frame reciprocate through guide rod and guide seat, so that the flow rate sensor can comprehensively and dynamically detect the air permeability of the different positions of the cloth body, which is beneficial to enhance the comprehensiveness of the test structure.

[0018] 4、The present application, by setting up the rectifier grid, can effectively rectify the gas entering the test box; so that the gas can form a uniform and stable airflow field in the test box after passing through the rectifier grid, so as to ensure that the flow rate and pressure distribution of the gas blown to the cloth body at each position are uniform, and avoid interference to the test result caused by uneven airflow; at the same time, the pressure sensor can detect the air pressure of the gas blown to the cloth body; so that the tester can understand the pressure effect of the gas on the cloth body, provide key data support for analyzing the air permeability of the cloth, and ensure the accuracy and reliability of the test result. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings of the embodiments will be briefly introduced as follows.

[0020] The drawings described in the following description only relate to some embodiments of the present application, and are not a limitation of the present application.

[0021] In the drawings: Figure 1 is the overall structure schematic diagram of the present application.

[0022] Figure 2 is the structure schematic diagram of the rectifier grid of the present application.

[0023] Figure 3 is the internal structure schematic diagram of the test box of the present application.

[0024] Figure 4 is the structure schematic diagram of the clamping structure of the present application.

[0025] Figure 5 is the lower surface structure schematic diagram of the receiving frame of the present application.

[0026] Figure 6 is the lower surface structure schematic diagram of the clamping plate of the present application.

[0027] Figure 7 is the upper surface structure schematic diagram of the clamping frame of the present application.

[0028] Figure 8 is the upper surface structure schematic diagram of the pressure applying frame of the present application.

[0029] Figure 9 is the lower surface structure schematic diagram of the pressure applying frame of the present application.

[0030] Figure 10 It is the schematic diagram of the upper surface structure of the collecting frame of the application.

[0031] List of reference signs 1, test box; 101, support frame; 102, air pump; 103, air inlet pipe; 104, control module; 105, pressure sensor; 106, rectifier grid; 107, sealing groove; 2, power assembly; 201, fixed seat; 202, air cylinder; 203, power seat; 3, drive structure; 301, pressure frame; 302, sealing ring; 303, guide rod; 304, guide seat; 305, ball; 306, drive frame; 307, reciprocating screw; 308, drive seat; 309, protrusion; 4, collecting assembly; 401, collecting frame; 402, flow rate sensor; 403, information collection module; 404, wireless transmission module; 5, adjusting assembly; 501, adjusting frame; 502, double-headed screw; 503, adjusting seat; 504, adjusting plate; 505, connecting seat; 6, clamping structure; 601, clamping frame; 602, anti-skid groove; 603, receiving frame; 604, threaded cylinder; 605, threaded rod; 606, clamping seat; 607, clamping plate; 608, anti-skid protrusion; 609, handle; 6010, sprocket; 7, cloth main body. DETAILED DESCRIPTION

[0032] In order to make the purpose, scheme and advantages of the technical solutions of the application clearer, the technical solutions of the embodiments of the application will be described clearly and completely in the following with reference to the drawings of specific embodiments of the application. Unless otherwise specified, the terms used herein have the usual meanings in the art. The same reference signs in the drawings represent the same components.

[0033] Example one: please refer to Figures 1 to 10 as shown: The application provides a kind of textile cloth air permeability testing device, including test box 1;Test box 1 both sides are fixedly provided with power assembly 2, and power assembly 2 is symmetrically provided with two places, and two power assemblies 2 are fixedly provided with drive structure 3 between two places;Drive structure 3 inside is provided with collecting assembly 4, and test box 1 outside is fixedly provided with adjusting assembly 5;Adjusting assembly 5 outside is fixedly provided with one clamping structure 6, and clamping structure 6 is provided with two places, and another place is fixedly provided on the outside of test box 1;Two clamping structures 6 are provided with cloth main body 7 between two, and the bottom surface of cloth main body 7 and the top of test box 1 are fitted; In the embodiment of the present disclosure, the driving structure 3 includes: a pressure frame 301, a guide rod 303 and a guide seat 304; the pressure frame 301 is movably arranged just above the test box 1, and the bottom of the pressure frame 301 is in contact with the upper surface of the fabric body 7; the guide rod 303 is fixedly arranged on both sides of the top of the pressure frame 301; the guide seat 304 is slidably arranged on the outside of the guide rod 303; the collection component 4 includes: a collection frame 401 and a flow rate sensor 402; the collection frame 401 is fixedly arranged between the two guide seats 304, and the collection frame 401 is arranged in an inverted U-shaped structure, and the collection frame 401 is slidably arranged on the inside of the pressure frame 301; the flow rate sensor 402 is fixedly arranged on the inside of the collection frame 401, and the flow rate sensor 402 is arranged in a straight line. The acquisition component 4 also includes: an information acquisition module 403 and a wireless transmission module 404; the information acquisition module 403 and the wireless transmission module 404 are fixedly arranged on the top of the acquisition frame 401, and the information acquisition module 403 and the wireless transmission module 404 are electrically connected; the information acquisition module 403 and the flow rate sensor 402 are electrically connected, and the wireless transmission module 404 and the remote receiving terminal are electrically connected; the support frame 101 is fixedly arranged on both sides of the bottom of the test box 1, and the air pump 102 is fixedly arranged on the outside of the support frame 101, and the air outlet of the air pump 102 is fixedly arranged on the outside of the air outlet of the air pump 102, and the top of the air inlet pipe 103 is connected to the inside of the test box 1, and the top side of the test box 1 is provided with a sealed Sealing groove 107; a pressure sensor 105 and a rectifying grid 106 are fixedly provided inside the test box 1, and the rectifying grid 106 is located between the pressure sensor 105 and the outlet end of the air inlet pipe 103; a control module 104 is fixedly provided on the outside of the test box 1, and the control module 104 is electrically connected to the pressure sensor 105 and the air pump 102; the driving structure 3 also includes: a sealing ring 302 and a ball 305; the sealing ring 302 is fixedly provided at the bottom of the pressure frame 301, and the sealing ring 302 is located directly above the sealing groove 107; the ball 305 is rotatably provided inside the guide seat 304, and the ball 305 is provided in a ring array, and the outer side of the ball 305 is in contact with the outer side of the guide rod 303; the power component 2 includes: a fixed The base 201, the cylinder 202 and the power base 203; the fixed base 201 is fixedly arranged on both sides of the test box 1; the cylinder 202 is fixedly arranged inside the fixed base 201; the power base 203 is fixedly arranged on the top of the telescopic end of the cylinder 202, and the power base 203 is fixedly arranged on the outside of the pressure frame 301; its specific function is: by providing the power component 2, the pressure frame 301 can be moved up and down, so that the pressure frame 301 can seal the bottom of the test area of ​​the fabric body 7 through the sealing ring 302, the sealing groove 107 and the test box 1; at the same time, the collection rack 401 can be used to seal the top of the test area of ​​the fabric body 7; thereby, the test area of ​​the fabric body 7 can be conveniently sealed to prevent external airflow from affecting the test results.

[0034] Example 2: Please refer to Figures 8 to 10 As shown in the figure: on the basis of embodiment 1, the driving structure 3 also includes: a driving frame 306, a reciprocating screw 307, a driving seat 308 and a protrusion 309; the driving frame 306 is fixedly arranged on the top of the pressure frame 301; the reciprocating screw 307 is rotatably arranged inside the driving frame 306, and the reciprocating screw 307 is fixedly arranged on the shaft end of the motor device, and the motor device is fixedly arranged on the outside of the driving frame 306; the driving seat 308 is slidably arranged on the outside of the reciprocating screw 307, and the driving seat 308 is provided with a protrusion 309 that slides with the spiral groove of the reciprocating screw 307, and the driving seat 308 is fixedly arranged on the top of the collection frame 401; its specific function is: by providing the reciprocating screw 307, the protrusion 309 and the driving seat 308, the collection frame 401 can be reciprocated through the guide rod 303 and the guide seat 304, so that the flow rate sensor 402 performs comprehensive and dynamic air permeability detection on different positions of the fabric body 7.

[0035] Example 3: Please refer to Figures 3 to 7As shown: Based on the first and second embodiments, the adjustment assembly 5 includes: an adjustment frame 501, a double-headed screw 502, an adjustment seat 503, an adjustment plate 504 and a connecting seat 505; the adjustment frame 501 is fixedly arranged on one side of the test box 1; the double-headed screw 502 is rotatably arranged inside the adjustment frame 501, and a handwheel is fixedly arranged on the top of the double-headed screw 502; the adjustment seat 503 is slidably arranged inside the adjustment frame 501, and the adjustment seat 503 is arranged on the outside of the double-headed screw 502 through a threaded connection; the adjustment plate 504 is rotatably arranged on the outside of the adjustment seat 503; the connecting seat 5 05 is rotatably arranged on the outside of the adjustment plate 504, and the connecting seat 505, the adjustment plate 504 and the adjustment seat 503 are symmetrically arranged in two groups; the clamping structure 6 includes: a clamping frame 601, a receiving frame 603, a threaded cylinder 604, a threaded rod 605, a clamping seat 606, a clamping plate 607, an anti-slip groove 602, an anti-slip protrusion 608, a handle 609 and a sprocket 6010; the clamping frame 601 is provided with two groups, one group of clamping frames 601 is fixedly arranged between the two groups of connecting seats 505, and the other group of clamping frames 601 is fixedly arranged on the other side of the test box 1; the receiving frame 6 03 is fixedly arranged on the outside of the clamping frame 601; the threaded cylinder 604 is rotatably arranged inside the receiving frame 603; the threaded rod 605 is arranged inside the threaded cylinder 604 through a threaded connection; the clamping seat 606 is fixedly arranged on the top of the threaded rod 605; the clamping plate 607 is fixedly arranged on the outside of the clamping seat 606, and the cloth body 7 is clamped between the clamping plate 607 and the clamping frame 601; the anti-slip groove 602 is opened inside the top side of the clamping frame 601; the anti-slip protrusion 608 is integrally arranged at the bottom of the clamping plate 607, and the anti-slip protrusion 608 is located just above the anti-slip groove 602, and the anti-slip protrusion The handle 608 and the anti-slip groove 602 are arranged in a straight line; the handle 609 is fixedly arranged at the bottom of the threaded cylinder 604 in a circular array; the sprocket 6010 is fixedly arranged on the outside of the threaded cylinder 604, and a chain is installed on the outside of the sprocket 6010; its specific function is: by providing the clamping frame 601 and the clamping plate 607 as well as the anti-slip groove 602 and the anti-slip protrusion 608, the two ends of the cloth body 7 can be clamped and fixed; at the same time, the adjustment component 5 can be used to adjust the distance between the two sets of clamping frames 601; thereby, the cloth body 7 can be kept in a tight and non-stacked state.

[0036] Specific usage and function of this embodiment: In the present invention, when in use, the two ends of the cloth body 7 are placed flat between the clamping frame 601 and the clamping plate 607; then the handle 609 is used to rotate the threaded cylinder 604, and the two sets of threaded cylinders 604 are rotated simultaneously through the chain and sprocket 6010, so that the two sets of threaded rods 605 drive the clamping plate 607 to move downward through the clamping seat 606, so that the clamping plate 607 clamps the two ends of the cloth body 7 through the anti-slip groove 602 and the anti-slip protrusion 608 and the clamping frame 601; then the double-headed screw 502 is rotated, and the double-headed screw 502 drives the two sets of adjustment seats 50 3 moves in the opposite direction, causing the two sets of adjustment plates 504 to rotate in the opposite direction, thereby causing the connecting seat 505 to drive its outer clamping frame 601 to move outward, so that the fabric body 7 is tightly attached to the top of the test box 1; then the cylinder 202 and the power seat 203 drive the pressure frame 301 to move downward; so that the pressure frame 301 clamps the test area of ​​the fabric body 7 through the sealing ring 302, the sealing groove 107 and the test box 1; then gas is filled into the test box 1 through the air pump 102 and the air inlet pipe 103; the gas entering the test box 1 is effectively rectified by the rectifying grid 106, so that the gas forms a uniform A uniform and stable airflow field is formed, thereby ensuring that the flow rate and pressure distribution of the gas blown toward the fabric body 7 are uniform and consistent at all positions; at the same time, the pressure sensor 105 can be used to detect the air pressure of the gas blown toward the fabric body 7, so that the tester can understand the pressure effect of the gas on the fabric body 7; the flow rate sensor 402 detects the flow rate of the gas passing through the fabric body 7; the flow rate sensor 402 transmits the signal to the information acquisition module 403, and the information acquisition module 403 transmits the detection signal to the remote terminal through the wireless transmission module 404; the air permeability is indirectly tested by the gas flow rate; and the motor is started. The device drives the reciprocating screw 307 to rotate, and the reciprocating screw 307 drives the collection frame 401 to move back and forth through the drive seat 308 and the protrusion 309 as well as the guide seat 304 and the guide rod 303, so that the flow rate sensor 402 performs multi-position detection on the fabric body 7; the pressure frame 301 seals the lower part of the test area of ​​the fabric body 7 through the sealing ring 302, the sealing groove 107 and the test box 1; at the same time, the collection frame 401 can be used to seal the upper part of the test area of ​​the fabric body 7; thereby, the test area of ​​the fabric body 7 can be conveniently sealed to prevent external airflow from affecting the test results.

Claims

1. A textile fabric air permeability testing device, characterized in that: include: A test box (1); power components (2) are fixedly provided on both sides of the test box (1), and the power components (2) are symmetrically provided at two locations, and a driving structure (3) is fixedly provided between the two power components (2); a collection component (4) is provided inside the driving structure (3), and an adjustment component (5) is fixedly provided outside the test box (1); a clamping structure (6) is fixedly provided outside the adjustment component (5), and the clamping structure (6) is provided at two locations, and the other one is fixedly provided outside the test box (1); a fabric body (7) is provided between the two clamping structures (6), and the bottom surface of the fabric body (7) is in contact with the top of the test box (1); The driving structure (3) comprises: a pressure frame (301), a guide rod (303) and a guide seat (304); the pressure frame (301) is movably arranged directly above the test box (1), and the bottom of the pressure frame (301) is in contact with the upper surface of the fabric body (7); the guide rod (303) is fixedly arranged on both sides of the top of the pressure frame (301); the guide seat (304) is slidably arranged outside the guide rod (303); the collection component (4) comprises: a collection frame (401) and a flow rate sensor (402); the collection frame (401) is fixedly arranged between the two guide seats (304), and the collection frame (401) is arranged in an inverted U-shaped structure, and the collection frame (401) is slidably arranged inside the pressure frame (301); the flow rate sensor (402) is fixedly arranged inside the collection frame (401), and the flow rate sensor (402) is arranged in a linear arrangement.

2. The air permeability testing device for textile fabrics according to claim 1, characterized in that: The test box (1) is fixedly provided with support frames (101) on both sides of the bottom, and an air pump (102) is fixedly provided on the outside of the support frame (101), and an air inlet pipe (103) is connected to the air outlet of the air pump (102), and the other end of the air inlet pipe (103) is communicated with the inside of the test box (1), and a sealing groove (107) is provided on the top side of the test box (1); a pressure sensor (105) and a rectifying grid (106) are fixedly provided inside the test box (1), and the rectifying grid (106) is located between the pressure sensor (105) and the air outlet end of the air inlet pipe (103); a control module (104) is fixedly provided on the outside of the test box (1), and the control module (104) is electrically connected to the pressure sensor (105) and the air pump (102).

3. The air permeability testing device for textile fabrics according to claim 1, characterized in that: The power assembly (2) comprises: a fixed seat (201), a cylinder (202) and a power seat (203); the fixed seat (201) is fixedly arranged on both sides of the test box (1); the cylinder (202) is fixedly arranged inside the fixed seat (201); the power seat (203) is fixedly arranged on the top of the telescopic end of the cylinder (202), and the power seat (203) is fixedly arranged outside the pressure frame (301).

4. The air permeability testing device for textile fabrics according to claim 2, characterized in that: The driving structure (3) further comprises: a sealing ring (302) and a ball (305); the sealing ring (302) is fixedly arranged at the bottom of the pressure frame (301), and the sealing ring (302) is located directly above the sealing groove (107); the ball (305) is rotatably arranged inside the guide seat (304), and the ball (305) is arranged in a ring array, and the outer side of the ball (305) is in contact with the outer side of the guide rod (303).

5. The air permeability testing device for textile fabrics according to claim 1, characterized in that: The driving structure (3) further comprises: a driving frame (306), a reciprocating screw (307), a driving seat (308) and a protrusion (309); the driving frame (306) is fixedly arranged on the top of the pressure frame (301); the reciprocating screw (307) is rotatably arranged inside the driving frame (306), and the reciprocating screw (307) is fixedly arranged on the shaft end of the motor device, and the motor device is fixedly arranged on the outside of the driving frame (306); the driving seat (308) is slidably arranged on the outside of the reciprocating screw (307), and a protrusion (309) that slides with the spiral groove of the reciprocating screw (307) is provided in the driving seat (308), and the driving seat (308) is fixedly arranged on the top of the collection frame (401).

6. The air permeability testing device for textile fabrics according to claim 1, characterized in that: The acquisition component (4) further comprises: an information acquisition module (403) and a wireless transmission module (404); the information acquisition module (403) and the wireless transmission module (404) are both fixedly arranged on the top of the acquisition frame (401), and the information acquisition module (403) and the wireless transmission module (404) are electrically connected; the information acquisition module (403) and the flow rate sensor (402) are electrically connected, and the wireless transmission module (404) and the remote receiving terminal are electrically connected.

7. The air permeability testing device for textile fabrics according to claim 1, characterized in that: The adjustment assembly (5) comprises: an adjustment frame (501), a double-headed screw (502), an adjustment seat (503), an adjustment plate (504) and a connecting seat (505); the adjustment frame (501) is fixedly arranged on one side of the test box (1); the double-headed screw (502) is rotatably arranged inside the adjustment frame (501), and a hand wheel is fixedly arranged on the top of the double-headed screw (502); the adjustment seat (503) is slidably arranged inside the adjustment frame (501), and the adjustment seat (503) is arranged on the outside of the double-headed screw (502) through a threaded connection; the adjustment plate (504) is rotatably arranged on the outside of the adjustment seat (503); the connecting seat (505) is rotatably arranged on the outside of the adjustment plate (504), and the connecting seat (505), the adjustment plate (504) and the adjustment seat (503) are all symmetrically arranged in two groups.

8. The air permeability testing device for textile fabrics according to claim 7, characterized in that: The clamping structure (6) comprises: a clamping frame (601), a receiving frame (603), a threaded cylinder (604), a threaded rod (605), a clamping seat (606) and a clamping plate (607); the clamping frame (601) is provided with two groups, one group of clamping frames (601) is fixedly arranged between the two groups of connecting seats (505), and the other group of clamping frames (601) is fixedly arranged on the other side of the test box (1); the receiving frame (603) is fixedly arranged on the outside of the clamping frame (601); the threaded cylinder (604) is rotatably arranged inside the receiving frame (603); the threaded rod (605) is arranged inside the threaded cylinder (604) through a threaded connection; the clamping seat (606) is fixedly arranged on the top end of the threaded rod (605); the clamping plate (607) is fixedly arranged on the outside of the clamping seat (606), and the cloth body (7) is clamped between the clamping plate (607) and the clamping frame (601).

9. The air permeability testing device for textile fabrics according to claim 8, characterized in that: The clamping structure (6) further includes: an anti-slip groove (602) and an anti-slip protrusion (608); the anti-slip groove (602) is provided inside the top side of the clamping frame (601); the anti-slip protrusion (608) is integrally arranged at the bottom of the clamping plate (607), and the anti-slip protrusion (608) is located directly above the anti-slip groove (602), and the anti-slip protrusion (608) and the anti-slip groove (602) are arranged in a straight line.

10. The air permeability testing device for textile fabrics according to claim 8, characterized in that: The clamping structure (6) further comprises: a handle (609) and a sprocket (6010); the handle (609) is fixedly arranged at the bottom of the threaded barrel (604) in a circular array; the sprocket (6010) is fixedly arranged on the outside of the threaded barrel (604), and a chain is mounted on the outside of the sprocket (6010).

Images