Down jacket fabric air permeability testing equipment

Abstract

The invention discloses down jacket fabric air permeability testing equipment, and relates to the technical field of fabric air permeability testing, the down jacket fabric air permeability testing equipment comprises a shell and an air permeability detection module arranged in the shell, and a beating module is arranged above the air permeability detection module; the flapping module comprises a connecting base, two connecting shafts are rotationally connected to the connecting base, a rubber rod is fixedly connected to each connecting shaft, a mounting plate is arranged on each rubber rod, and flapping plates which are arranged in a linear array are arranged on the mounting plate and used for flapping the front face and the back face of the down jacket at the same time. According to the device, the flapping module is arranged, so that the down jacket can be flapped uniformly before the air permeability of the down jacket fabric is tested, and the fabric is uniformly filled with fluff in the down jacket, so that the test result deviation caused by non-uniform fluff distribution can be avoided, and the test accuracy is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of fabric air permeability testing, in particular to a down jacket fabric air permeability testing device. Background Art

[0002] The air permeability of down jacket fabric refers to the performance of air passing through the fabric layer. It is specifically indicated by the rate at which the air flows vertically through the fabric sample under the specified test area, pressure drop and time conditions. The air flow rate can be measured directly or calculated by measuring the pressure difference on both sides of the flow aperture.

[0003] However, in the field of breathability testing of down jacket fabrics, most of the existing equipment only tests individual down jacket fabrics, while ignoring the fact that the distribution of the down inside the down jacket as a whole has a crucial impact on the breathability. Since the down inside the down jacket is prone to uneven distribution during wearing and storage, this directly leads to the use of existing equipment to test down jackets filled with liner down. The test results are often biased and cannot truly reflect the breathability of the down jacket fabric. Summary of the invention

[0004] In order to solve the problems raised by the above background technology, the present invention proposes a down jacket fabric air permeability testing device.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A down jacket fabric air permeability testing device comprises a shell and an air permeability detection module arranged inside the shell, and a beating module is arranged above the air permeability detection module;

[0007] The beating module comprises a connecting seat, on which two connecting shafts are rotatably connected, each of which is fixedly connected to a rubber rod, on which a mounting plate is provided, and on which beating plates arranged in a linear array are provided, for beating the front and back sides of the down jacket at the same time;

[0008] The beating module also includes a driving component, and the driving component is used to drive the two connecting shafts to rotate.

[0009] As a further preferred embodiment of the technical solution: an amplitude amplification component is provided on the driving component;

[0010] The amplitude amplification component comprises a sliding sleeve and a sliding rod slidably connected therein, and a spring is arranged between the sliding sleeve and the sliding rod;

[0011] A rotating shaft is rotatably connected to the side wall of the sliding sleeve, a cam is fixedly connected to the rotating shaft, and an arc block used in conjunction with the cam is fixedly connected to the side wall of the sliding rod;

[0012] A first transmission member is provided on the rotating shaft. The first transmission member includes a second gear fixedly connected to the rotating shaft, and a second rack meshing with the second gear is fixedly connected to the inner wall of the top of the housing.

[0013] As a further preference of this technical solution: A down recovery module is provided below the housing;

[0014] The down recovery module includes a recovery box provided at the bottom of the housing. A plurality of through holes arranged in a linear array are formed on both side walls of the recovery box, and a first fan is provided inside each through hole.

[0015] As a further preference of this technical solution: The air permeability detection module includes a down jacket placement rack fixedly connected to the bottom wall of the housing. Clips are connected to the inner side wall of the down jacket placement rack through connecting chains.

[0016] As a further preference of this technical solution: The air permeability detection module further includes a first sealing shell and a second sealing shell respectively provided on both sides of the down jacket placement rack;

[0017] A second fan is provided on the second sealing shell. A plurality of air outlets arranged in an array are provided on the side of the second sealing shell adjacent to the first sealing shell, and the plurality of air outlets are connected to the second fan through a delivery pipe;

[0018] An electronic air flow collection module is provided on the side of the first sealing shell adjacent to the second sealing shell.

[0019] As a further preference of this technical solution: Sealing rings are provided on the edges of the first sealing shell and the second sealing shell facing each other.

[0020] As a further preference of this technical solution: The top surface of the arc-shaped block is a smooth arc surface structure, and the arc-shaped block is arranged directly below the cam.

[0021] As a further preference of this technical solution: A second transmission member is provided on the sliding rod. The second transmission member includes two symmetrically arranged hinged rods rotatably connected to the lower end of the sliding rod, and the end of each hinged rod away from the sliding rod is respectively rotatably connected to the corresponding connecting shaft.

[0022] As a further preference of this technical solution: The drive assembly includes a first fixing seat fixedly connected to the inner wall of the top of the housing. A first servo motor is provided on the first fixing seat. A transmission shaft is provided at the output end of the first servo motor, and a first gear is fixedly connected to the transmission shaft;

[0023] A connecting frame is fixedly connected to the connecting seat. A second sliding groove is provided on the connecting frame. A lifting plate is slidably connected inside the second sliding groove. The lifting plate is connected to a first rack through a connecting block, and the first rack is meshed and connected with a first gear.

[0024] As a further preference of this technical solution: The flapping module further includes a lifting assembly. The lifting assembly is fixedly connected to a second fixing seat on the inner side wall of the housing. A second servo motor is provided on the second fixing seat. The output end of the second servo motor is fixedly connected to a first lead screw. A lifting seat is threadedly connected to the first lead screw. A connecting rod is fixedly connected to the lifting seat, and the connecting seat is fixedly connected to the connecting rod;

[0025] A guide rod is fixedly connected to the inner wall of the housing. The lifting seat is slidably connected to the guide rod.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] 1. In the present invention, through the arranged flapping module, the down jacket can be evenly flapped before testing the air permeability of the down jacket fabric, so that the fluff inside the down jacket is evenly filled inside the fabric, which can avoid the deviation of the test results caused by uneven fluff distribution, thereby improving the accuracy of the test. At the same time, the soft hair design on the flapping module reduces the friction and wear on the fabric and protects the integrity of the down jacket fabric.

[0028] 2. In the present invention, not only can the air permeability of the down jacket after filling the inner liner with down be tested, but also the air permeability of the single down jacket fabric can be tested, so that the equipment can more truly reflect the air permeability performance of the down jacket fabric and provides strong support for the production and quality control of the down jacket.

[0029] 3. In the present invention, an amplitude amplification component is added. Through the cooperation of the spring and the cam, the up-and-down reciprocating vibration of the sliding rod and the rubber rod on the connecting shaft is realized, which improves the flapping frequency. More importantly, the vibration feeling is increased during the flapping process, making the flapping more uniform and powerful, which helps to further promote the even distribution of the fluff inside the down jacket, thereby improving the accuracy of the air permeability test.

[0030] 4. In the present invention, through the arranged down recovery module, when the flapping module works on the down jacket, the first blower inhales the possibly floating fluff through the through hole, collects it into the storage drawer, and intercepts it through the intercepting net, reducing the visual impact caused by the floating fluff, so as not to cause an uncomfortable mood for the staff. Description of the Drawings

[0031] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0032] Figure 2 Schematic diagram of the local three-dimensional structure of the present invention Figure 1 ;

[0033] Figure 3 is Figure 2 the enlarged schematic diagram at position A in

[0034] Figure 4 the partial structural cross-sectional view of the present invention;

[0035] Figure 5 Schematic diagram of the local three-dimensional structure of the present invention Figure 2 ;

[0036] Figure 6 is Figure 5 the enlarged schematic diagram at position B in

[0037] Figure 7 Schematic diagram of the local three-dimensional structure of the present invention Figure 3 ;

[0038] Figure 8 is Figure 1 the enlarged schematic diagram at position C in

[0039] Figure 9 Schematic diagram of the local three-dimensional structure of the present invention Figure 4 .

[0040] Legend: 1. Outer shell; 11. First chute; 12. Drop hole; 2. Beating module; 200. Connecting seat; 21. Driving component; 211. First servo motor; 212. First fixed seat; 213. Transmission shaft; 214. First gear; 215. First rack; 216. Connecting block; 217. Connecting frame; 218. Second chute; 219. Lifting plate; 22. Amplitude amplification component; 221. Sliding sleeve; 222. Spring; 223. Slide bar; 224. Rotating shaft; 225. Second gear; 226. Cam; 227. Arc-shaped block; 23. Second rack; 24. Hinge rod; 25. Connecting shaft; 26. Rubber rod; 27. Mounting plate; 28. Beating plate; 29. Soft hair; 210. Lifting component; 2101. Second fixed seat; 2102. Second servo motor; 2103. First lead screw; 2104. Lifting seat; 2105. Connecting rod; 2106. Guide rod; 3. Down recovery module; 31. Recovery box; 32. Storage drawer; 33. Intercepting net; 34. First fan; 4. Air permeability detection module; 41. Down jacket placement rack; 42. Clip; 43. Connecting chain; 44. Third servo motor; 45. Gear set; 46. Transmission rod; 47. Second lead screw; 48. First sealing shell; 49. Second sealing shell; 410. Second fan; 411. Delivery pipe; 412. Sealing ring; 413. Air outlet. Detailed implementation manners

[0041] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] Embodiment 1:

[0043] See also Figures 1-9 The present application provides a down jacket fabric air permeability testing device, comprising a shell 1 and an air permeability detection module 4 arranged inside the shell 1, which is used to test the air permeability of the down jacket fabric, and a flapping module 2 is arranged above the air permeability detection module 4; the flapping module 2 comprises a connecting seat 200, and two connecting shafts 25 are rotatably connected to the connecting seat 200, and each of the connecting shafts 25 is fixedly connected to a rubber rod 26, which has good flexibility and can be swung continuously to increase the vibration frequency, and a mounting plate 27 is arranged on the rubber rod 26, and a flapping plate 28 arranged in a linear array is arranged on the mounting plate 27, which is used to flap the front and back sides of the down jacket at the same time, and each of the flapping plates 28 is provided with evenly distributed soft hairs 29 to reduce friction and wear on the fabric; the flapping module 2 also includes a driving component 21, and the driving component 21 is used to drive the two connecting shafts 25 to rotate.

[0044] In this embodiment, a No. 2 transmission member is provided on the slide bar 223, and the No. 2 transmission member includes two symmetrically arranged hinged rods 24 rotatably connected to the lower end of the slide bar 223, and each of the hinged rods 24 is rotatably connected to the corresponding connecting shaft 25 at one end away from the slide bar 223. Through the No. 2 transmission member and driven by the driving assembly 21, the two connecting shafts 25 rotate around the connecting seat 200 in opposite directions, thereby realizing the mounting plate 27 driving the flapping plate 28 to rotate back and forth continuously.

[0045] In this embodiment, the driving assembly 21 includes a No. 1 fixed seat 212 fixedly connected to the inner wall of the top of the outer shell 1, and a No. 1 servo motor 211 is arranged on the No. 1 fixed seat 212, and a transmission shaft 213 is arranged at the output end of the No. 1 servo motor 211, and a No. 1 gear 214 is fixedly connected to the transmission shaft 213; a connecting frame 217 is fixedly connected to the connecting seat 200, and a No. 2 slide groove 218 is arranged on the connecting frame 217, and a lifting plate 219 is slidably connected inside the No. 2 slide groove 218, and the lifting plate 219 is connected to a No. 1 rack 215 through a connecting block 216, and the No. 1 rack 215 is meshingly connected with the No. 1 gear 214.

[0046] In this embodiment, the flapping module 2 further includes a lifting component 210, which can drive a plurality of components thereon, including the flapping plate 28, to move up and down, so as to achieve uniform flapping of different height points of the down jacket. The lifting component 210 is fixedly connected to the second fixed seat 2101 on the inner side wall of the housing 1. A second servo motor 2102 is arranged on the second fixed seat 2101. The output end of the second servo motor 2102 is fixedly connected to a first lead screw 2103. A lifting seat 2104 is threadedly connected to the first lead screw 2103. A connecting rod 2105 is fixedly connected to the lifting seat 2104, and the connecting seat 200 is fixedly connected to the connecting rod 2105. A guide rod 2106 is fixedly connected to the inner wall of the housing 1. The lifting seat 2104 is slidably connected to the guide rod 2106, and the guide rod 2106 plays a guiding role.

[0047] Specifically, by starting the first servo motor 211 to drive the transmission shaft 213 to rotate, the transmission shaft 213 drives the first gear 214 to rotate. The rotation of the first gear 214 causes the first rack 215 to rise or fall, and then the connecting block 216 drives the lifting plate 219 to rise or fall along the second chute 218. The rise and fall of the lifting plate 219 will drive the sliding sleeve 221 and the sliding rod 223 to move up or down as a whole, that is, it can pull the two articulated rods 24 in the second transmission member to rotate around the connecting seat 200, and then drive the connecting shaft 25 and the rubber rod 26 thereon to rotate. The rubber rod 26 drives the mounting plate 27 thereon to move towards the down jacket, and the down jacket is slapped through the flapping plate 28 on the mounting plate 27. The soft hair 29 can be a plush object. Due to its soft material, it will not directly slap the fabric of the down jacket by the flapping plate 28, avoiding the problem of damage to the fabric of the down jacket. During the slapping, the second servo motor 2102 can be started to drive the second fixed seat 2101 to rotate. The first lead screw 2103 can move up and down along the guide rod 2106, and then drive the connecting seat 200 thereon to move up and down through the connecting rod 2105, that is, finally drive the flapping plate 28 to move up and down, and slap different points of the down jacket comprehensively. Thus, before testing the air permeability of the down jacket fabric, the down jacket is evenly slapped, so that the fluff inside the down jacket is evenly filled inside the fabric, and then the accuracy of the test can be improved.

[0048] Embodiment Two:

[0049] On the basis of the first embodiment, an amplitude amplification component 22 is provided on the driving component 21; the amplitude amplification component 22 includes a sliding sleeve 221 and a sliding rod 223 slidably connected inside it. The sliding sleeve 221 is fixedly connected to the bottom wall of the lifting plate 219, and a spring 222 is arranged between the sliding sleeve 221 and the sliding rod 223. After the sliding rod 223 slides downward relative to the sliding sleeve 221, the spring 222 can pull the sliding rod 223 back to its original position and generate a certain amount of vibration, pushing the sliding rod 223 to move up and down continuously. It should be noted that the selected spring 222 needs to meet the requirement that the sliding rod 223 can slide slightly up and down, that is, the floating value is very small. A rotating shaft 224 is rotatably connected to the side wall of the sliding sleeve 221. A cam 226 is fixedly connected to the rotating shaft 224, and an arc-shaped block 227 used in cooperation with the cam 226 is fixedly connected to the side wall of the sliding rod 223. A first transmission member is arranged on the rotating shaft 224. The first transmission member includes a second gear 225 fixedly connected to the rotating shaft 224, and a second rack 23 meshing with the second gear 225 is fixedly connected to the top inner wall of the housing 1. During the overall upward or downward movement of the sliding sleeve 221 and the sliding rod 223, the second gear 225 on the rotating shaft 224 can be driven to move upward or downward as a whole. Since the second gear 225 meshes with the second rack 23, the second gear 225 can rotate, and then the rotating shaft 224 drives the cam 226 to rotate continuously, thereby enabling the sliding rod 223 to vibrate up and down continuously.

[0050] In this embodiment, the top surface of the arc-shaped block 227 is a smooth arc surface structure, and the arc-shaped block 227 is arranged directly below the cam 226. To adapt to the continuous reciprocating sliding of the sliding rod 223 up and down, the arc surface of the arc-shaped block 227 can well adapt to this change. The setting of the arc surface of the mounting plate 27 needs to meet the requirement that during the downward sliding of the sliding rod 223 relative to the sliding sleeve 221, the lowest point of the rubber rod 26 is lower than the lowest point of the arc surface of the arc-shaped block 227.

[0051] Specifically, during the implementation of the first embodiment, specifically during the process of the overall upward or downward movement of the sliding sleeve 221 and the sliding rod 223, the second gear 225 on the rotating shaft 224 can be driven to rise or fall. Under the action of the second rack 23, the second gear 225 can be rotated. The rotation of the second gear 225 causes the cam 226 on the rotating shaft 224 to rotate. The rotation of the cam 226 can push the arc-shaped block 227, causing the arc-shaped block 227 to move downward relative to the rotating shaft 224. The arc-shaped block 227 pulls the sliding rod 223 to slide downward relative to the sliding sleeve 221, and the spring 222 is stretched. As the cam 226 disengages from the arc-shaped block 227, the sliding rod 223 can be pulled back again under the action of the pulling force of the spring 222. And during this process, the spring 222 will generate a certain amount of up and down vibration, thereby causing the sliding rod 223 to vibrate up and down. That is, during the process of the connecting shaft 25 and the rubber rod 26 overall patting the down jacket, and because of the special material of the rubber rod 26, the vibration amount is transmitted to the rubber rod 26, that is, the patting plate 28 on the mounting plate 27 drives the down jacket with a vibrating feeling, making the patting frequency high and the patting effect good.

[0052] Embodiment Three:

[0053] On the basis of the second embodiment, a down recovery module 3 is provided below the housing 1; the down recovery module 3 includes a recovery box 31 provided at the bottom of the housing 1. A plurality of through holes arranged in a linear array are opened on both side walls of the recovery box 31. A first blower 34 is provided inside each through hole. The first blower 34 is an existing product and is used by being powered on with an external power supply. The feathers escaping from the inside of the down jacket are sucked into the inside of the storage drawer 32 by suction; a storage drawer 32 is further provided inside the recovery box 31 for storing down, and an interception net 33 is provided at the bottom of the storage drawer 32, which can allow the wind of the blower to pass through, while the feathers are intercepted above the interception net 33.

[0054] In this embodiment, the bottom of the housing 1 is provided with uniformly arranged down pores 12, and the down pores 12 are communicated with the recovery box 31.

[0055] Specifically, during the process of patting the down jacket, there may be a problem that the down inside the down jacket escapes. Therefore, by starting the hinge rod 24 for air extraction operation, the floating fluff is sucked from the inside of the housing 1 into the inside of the recovery box 31, and then falls onto the storage drawer 32 and is intercepted by the interception net 33 at the bottom of the storage drawer 32. After that, the storage drawer 32 can be pulled out from the inside of the storage drawer 32 to recycle the collected fluff, and avoid the floating fluff inside the housing 1, which is likely to cause a visual impact and thus bring an uncomfortable mood to the staff.

[0056] Embodiment Four:

[0057] On the basis of the third embodiment, the air permeability detection module 4 includes a down jacket rack 41 fixedly connected to the bottom wall of the outer shell 1, and a clip 42 is connected to the inner wall of the down jacket rack 41 through a connecting chain 43. It should be noted that the connecting chain 43 can be set to a retractable structure, so as to clamp and fix down jackets of different sizes, and the down jacket can be clamped by the clip 42 to fix the down jacket.

[0058] In this embodiment, the air permeability detection module 4 also includes a No. 3 servo motor 44 fixedly connected to the down jacket placement rack 41, and the output end of the No. 3 servo motor 44 is connected to a transmission rod 46 through a gear set 45. Specifically, the output end of the No. 3 servo motor 44 is fixedly connected to one of the transmission wheels, and the two transmission wheels are meshed, and the transmission rod 46 is fixedly connected to the other transmission wheel; the two ends of the transmission rod 46 are respectively fixedly connected to a No. 2 screw rod 47, and the two No. 2 screw rods 47 are symmetrically arranged, one of the No. 2 screw rods 47 is threadedly connected to a No. 2 sealing shell 49, and the other No. 2 screw rod 47 is threadedly connected to a No. 1 sealing shell 48, and the down jacket placement rack 41 is placed in the middle position of the No. 1 sealing shell 48 and the No. 2 sealing shell 49; the No. 2 sealing shell 49 is provided with a No. 2 fan 410, and the No. 2 fan 410 is a prior art, and is only powered on by an external power supply to achieve the function of blowing. A plurality of air outlets 413 arranged in an array are provided on one side of the No. 2 sealed shell 49 adjacent to the No. 1 sealed shell 48, and the plurality of air outlets 413 are connected to the No. 2 fan 410 through a conveying pipe 411, so that wind is blown evenly and comprehensively onto the down jacket through the air outlets 413; an electronic airflow collection module is provided on the side of the No. 1 sealed shell 48 adjacent to the No. 2 sealed shell 49, and its principle is the same as that of the data collection module with publication number CN105455836A, which is a prior art and is only used to electrically connect a host device and a display, and to display the test results through a display, so as to collect the air flow through a given area of ​​the down jacket fabric within a set time during the air permeability test, so as to obtain the air permeability of the sample, so as to intuitively and comprehensively reflect the air permeability of the down jacket; a No. 1 slide groove 11 is provided on the bottom wall of the outer shell 1, and the bottoms of the No. 1 sealed shell 48 and the No. 2 sealed shell 49 are both slidably arranged with the No. 1 slide groove 11.

[0059] In this embodiment, sealing rings 412 are provided on the edges directly opposite to the No. 1 sealing shell 48 and the No. 2 sealing shell 49. The sealing rings 412 increase the sealing performance between the No. 1 sealing shell 48 and the down jacket placement rack 41, so that the wind blown out of the air outlet 413 can pass from one side of the down jacket to the other side, and the air permeability is fed back through the electronic airflow collection module.

[0060] Specifically, by flattening the entire down jacket or the fabric of the down jacket and clamping it to the down jacket placement rack 41 with clips 42, then the third servo motor 44 can be started, and the rotation of the transmission rod 46 is driven by the transmission of the gear set 45. The rotation of the transmission rod 46 drives the rotation of the second lead screws 47 at both ends. Also, because the two second lead screws 47 are symmetrically arranged, that is, the thread directions on them are opposite, thus realizing the movement of the first sealing shell 48 and the second sealing shell 49 towards the down jacket placement rack 41, and maintaining the sealing performance through the sealing ring 412. By starting the second blower 410, air is conveyed to multiple air outlets 413, and the air is blown out through the air outlets 413 and passes through the down jacket or the separate down jacket fabric. Then, through the electronic air flow collection module on the first sealing shell 48, it is connected to the host device to give feedback, and thus the air permeability of the down jacket or the separate fabric can be tested.

[0061] The above embodiments are only used to illustrate the technical method of the present invention and not to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical method of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A down jacket fabric air permeability testing device, comprising a housing (1) and an air permeability detection module (4) arranged inside the housing, characterized in that: A beating module (2) is arranged above the air permeability detection module (4); The beating module (2) comprises a connecting seat (200), two connecting shafts (25) are rotatably connected to the connecting seat (200), a rubber rod (26) is fixedly connected to each connecting shaft (25), a mounting plate (27) is arranged on the rubber rod (26), and beating plates (28) arranged in a linear array are arranged on the mounting plate (27) for beating the front and back sides of the down jacket simultaneously; The beating module (2) further comprises a driving assembly (21), wherein the driving assembly (21) is used to drive the two connecting shafts (25) to rotate.

2. The down jacket fabric air permeability testing device according to claim 1, characterized in that: The driving component (21) is provided with an amplitude amplification component (22); The amplitude amplification component (22) comprises a sliding sleeve (221) and a sliding rod (223) slidably connected thereto, and a spring (222) is provided between the sliding sleeve (221) and the sliding rod (223); A rotating shaft (224) is rotatably connected to the side wall of the sliding sleeve (221), a cam (226) is fixedly connected to the rotating shaft (224), and an arc block (227) used in conjunction with the cam (226) is fixedly connected to the side wall of the sliding rod (223); A first transmission member is arranged on the rotating shaft (224), and the first transmission member comprises a second gear (225) fixedly connected to the rotating shaft (224), and a second rack (23) meshing with the second gear (225) is fixedly connected to the top inner wall of the housing (1).

3. The down jacket fabric air permeability testing device according to claim 1, characterized in that: A down recovery module (3) is arranged below the shell (1); The down recycling module (3) comprises a recycling box (31) arranged at the bottom of the housing (1), and a plurality of through holes arranged in a linear array are provided on both side walls of the recycling box (31), and a first fan (34) is provided inside each of the through holes.

4. The down jacket fabric air permeability testing device according to claim 1, characterized in that: The air permeability detection module (4) comprises a down jacket placement rack (41) fixedly connected to the bottom wall of the outer shell (1), and a clip (42) is connected to the inner side wall of the down jacket placement rack (41) via a connecting chain (43).

5. The down jacket fabric air permeability testing device according to claim 4, characterized in that: The air permeability detection module (4) further comprises a first sealing shell (48) and a second sealing shell (49) respectively arranged on two sides of the down jacket placement rack (41); The second sealed shell (49) is provided with a second fan (410), and a plurality of air outlets (413) arranged in an array are provided on one side of the second sealed shell (49) adjacent to the first sealed shell (48), and the plurality of air outlets (413) are connected to the second fan (410) via a delivery pipe (411); An electron gas flow collection module is provided on the side of the first sealing shell (48) adjacent to the second sealing shell (49).

6. The down jacket fabric air permeability testing device according to claim 5, characterized in that: Sealing rings (412) are provided on the edges directly opposite to the first sealing shell (48) and the second sealing shell (49).

7. The down jacket fabric air permeability testing device according to claim 2, characterized in that: The top surface of the arc block (227) is a smooth arc surface structure, and the arc block (227) is arranged directly below the cam (226).

8. The down jacket fabric air permeability testing device according to claim 2, characterized in that: The slide bar (223) is provided with a second transmission member, which includes two symmetrically arranged hinged rods (24) rotatably connected to the lower end of the slide bar (223), and one end of each hinged rod (24) away from the slide bar (223) is rotatably connected to a corresponding connecting shaft (25).

9. The down jacket fabric air permeability testing device according to claim 1, characterized in that: The driving assembly (21) comprises a No. 1 fixing seat (212) fixedly connected to the inner wall of the top of the housing (1); a No. 1 servo motor (211) is arranged on the No. 1 fixing seat (212); a transmission shaft (213) is arranged at the output end of the No. 1 servo motor (211); and a No. 1 gear (214) is fixedly connected to the transmission shaft (213); The connecting seat (200) is fixedly connected with a connecting frame (217), and a No. 2 slide groove (218) is arranged on the connecting frame (217). A lifting plate (219) is slidably connected inside the No. 2 slide groove (218), and the lifting plate (219) is connected with a No. 1 rack (215) through a connecting block (216), and the No. 1 rack (215) is meshedly connected with a No. 1 gear (214).

10. A down jacket fabric air permeability testing device according to claim 9, characterized in that: The beating module (2) further comprises a lifting assembly (210), wherein the lifting assembly (210) is fixedly connected to a No. 2 fixing seat (2101) on the inner wall of the housing (1), a No. 2 servo motor (2102) is arranged on the No. 2 fixing seat (2101), a No. 1 screw rod (2103) is fixedly connected to the output end of the No. 2 servo motor (2102), a No. 1 screw rod (2103) is threadedly connected to a lifting seat (2104), a connecting rod (2105) is fixedly connected to the lifting seat (2104), and the connecting seat (200) is fixedly connected to the connecting rod (2105); A guide rod (2106) is fixedly connected to the inner wall of the housing (1), and the lifting seat (2104) is slidably connected to the guide rod (2106).

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