Hydrophobic multilayer non-woven fabric and processing technology thereof

Abstract

The invention relates to the technical field of automotive trim processing, in particular to a hydrophobic multi-layer non-woven fabric and a processing technology thereof.The hydrophobic multi-layer non-woven fabric comprises a fabric part and a mounting part, the fabric part comprises hydrophobic non-woven fabric and aerogel filler, and the mounting part comprises two first mounting plates; fixing mechanisms are mounted on the two first mounting plates through sliding adjusting mechanisms, each fixing mechanism comprises a U-shaped block, each U-shaped block is composed of an upper connecting plate, a vertical connecting plate and a lower connecting plate, the hydrophobic non-woven fabrics are placed between the upper connecting plates and the lower connecting plates, and the aerogel filler is located between every two adjacent hydrophobic non-woven fabrics. The upper connecting plate is connected with a fixing needle in a sliding mode, and the fixing mechanism further comprises a limiting assembly which is installed on the lower connecting plate. The moisture-proof non-woven fabric has the advantages that the moisture-proof effect of the automotive trim is better, and meanwhile, the hydrophobic non-woven fabric can be more conveniently mounted in an automobile; and meanwhile, the hydrophobic non-woven fabric is fixed through the arrangement of the fixing needles, and meanwhile the damaged hydrophobic non-woven fabric is convenient to replace.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive interior processing, and more particularly to a hydrophobic multi-layer non-woven fabric and its processing technology. Background Art

[0002] With the progress of technology, people's requirements for automotive interiors are getting higher and higher. On the basis of pursuing aesthetics, there is also a higher pursuit of safety and functionality. Therefore, in the prior art, non-woven fabrics are widely used in the field of automotive interiors.

[0003] Non-woven fabric, also known as non-woven cloth, does not require processes such as spinning, winding, and weaving compared with traditional textile fabrics. It is only formed by randomly arranging oriented or random fibers or filaments to form a fiber web structure, and then processed by melt blowing, needling or other mechanical and chemical methods. The non-woven fabric processing technology is simpler and more efficient, with advantages such as short process flow, fast production rate, high output, low cost, wide application, and multiple raw material sources.

[0004] In order to improve the moisture-proof effect, some automobiles will adopt the method of laying multiple layers of hydrophobic non-woven fabrics, and there are gaps between the multiple layers of hydrophobic non-woven fabrics to improve the moisture-proof effect. However, in the prior art, most of the hydrophobic non-woven fabrics for automotive interiors are installed by means of chemical adhesives. This method releases a lot of formaldehyde, and when multiple layers are laid, it is impossible to ensure that the gaps between the multiple layers of hydrophobic non-woven fabrics are consistent. Summary of the Invention

[0005] In order to reduce the release of formaldehyde and ensure that the gaps between multiple layers of hydrophobic non-woven fabrics are consistent, the present application provides a hydrophobic multi-layer non-woven fabric.

[0006] In a first aspect, a hydrophobic multi-layer non-woven fabric provided by the present application adopts the following technical solution: A hydrophobic multi-layer non-woven fabric includes a fabric part and an installation part. The fabric part is a hydrophobic non-woven fabric and an aerogel filler. The installation part includes two first mounting plates. A fixing mechanism is installed on each of the two first mounting plates through a sliding adjustment mechanism. The fixing mechanism includes a U-shaped block, which is composed of an upper connecting plate, a vertical connecting plate, and a lower connecting plate. The hydrophobic non-woven fabric is placed between the upper connecting plate and the lower connecting plate. The aerogel filler is located between two adjacent hydrophobic non-woven fabrics. A fixing needle is slidably connected to the upper connecting plate. The fixing mechanism further includes a limiting component, and the limiting component is installed on the lower connecting plate.

[0007] By adopting the above technical solution, a plurality of U-shaped blocks can be installed on the first mounting plate through the sliding adjustment mechanism, thereby realizing the installation of multiple layers of hydrophobic non-woven fabrics, achieving a better moisture-proof effect for the automotive interior, and also making it more convenient to install the hydrophobic non-woven fabric in the vehicle. At the same time, an aerogel filler is filled between adjacent hydrophobic non-woven fabrics, which can support the hydrophobic non-woven fabric; meanwhile, the setting of the fixing pins realizes the fixation of the hydrophobic non-woven fabric and also facilitates the replacement of damaged hydrophobic non-woven fabrics. Moreover, this application does not use chemical adhesives, reducing the release of formaldehyde.

[0008] Optionally, a slot is formed on the end face of the lower connecting plate close to the upper connecting plate. A second chute communicating with the slot is formed on the end face of the lower connecting plate far from the vertical connecting plate. A third chute is formed on the side wall of the second chute. A limiting groove is formed on the side wall of the fixing pin. One end of the fixing pin far from the upper connecting plate is inserted into the slot. The limiting component includes a first limiting rod, which is slidably connected in the second chute and passes through one end of the second chute and is inserted into the slot. A second slider is slidably connected in the third chute, and the second slider is fixedly connected with the first limiting rod. A spring is fixedly connected to the side wall of the third chute far from the fixing pin, and one end of the spring close to the fixing pin is fixedly connected with the second slider.

[0009] By adopting the above technical solution, when fixing the hydrophobic non-woven fabric, first manually pull the first limiting rod. The first limiting rod slides out of the slot and compresses the spring through the second slider. Then manually press the fixing pin, and the fixing pin pierces the hydrophobic non-woven fabric and is inserted into the slot. At this time, release the first limiting rod, and the spring drives the first limiting rod to be inserted into the limiting groove through the second slider to limit the fixing pin.

[0010] Optionally, a fourth chute is formed on the end face of the vertical connecting plate close to the fixing pin. A clamping mechanism is installed on the vertical connecting plate. The clamping mechanism includes an upper clamping plate and a lower clamping plate. The upper clamping plate is slidably connected in the fourth chute, and the lower clamping plate is fixedly connected to the lower connecting plate.

[0011] By adopting the above technical solution, since the diameter of the fixing pin is small, when the hydrophobic non-woven fabric is tensioned, the edge position of the hydrophobic non-woven fabric will be cut open by the fixing pin under the action of the tension, thus affecting the tension of the hydrophobic non-woven fabric; the setting of the upper clamping plate and the lower clamping plate realizes the clamping of the edge of the hydrophobic non-woven fabric. When the hydrophobic non-woven fabric is tensioned, first clamp the edge position of the hydrophobic non-woven fabric through the upper clamping plate and the lower clamping plate, thereby reducing the probability that the edge position of the hydrophobic non-woven fabric is cut open by the fixing pin under the action of the tension and affecting the tension of the hydrophobic non-woven fabric.

[0012] Optionally, a plurality of arc grooves are formed on the end face of the upper clamping plate close to the lower clamping plate, and a plurality of bumps are fixedly connected to the end face of the lower clamping plate close to the upper clamping plate. The bumps are symmetrically arranged with the arc grooves and are mutually adapted.

[0013] By adopting the above technical solution, when clamping the hydrophobic non-woven fabric, the bumps clamp the hydrophobic non-woven fabric in the arc grooves, thereby increasing the contact area between the hydrophobic non-woven fabric and the upper clamping plate and the lower clamping plate, improving the friction between the hydrophobic non-woven fabric and the upper clamping plate and the lower clamping plate, and further reducing the probability of accidental sliding when the hydrophobic non-woven fabric is tensioned.

[0014] Optionally, a transmission mechanism is installed on the fixed needle. The transmission mechanism includes a connecting rod fixedly connected to the fixed needle. A driving rack is fixedly connected to the connecting rod. An installation groove is formed on the end face of the upper connecting plate away from the lower connecting plate. A first rotating shaft is rotatably connected in the installation groove. A driving gear is fixedly connected to the first rotating shaft. The driving gear meshes with the driving rack. A steering gear is also rotatably connected in the installation groove through an installation component. The steering gear meshes with the driving gear. A driven rack is slidably connected in the installation groove. The driven rack is connected to the upper clamping plate through an adjusting component. The driven rack meshes with the steering gear.

[0015] By adopting the above technical solution, when fixing the hydrophobic non-woven fabric, manually press the fixed needle. At this time, the fixed needle drives the connecting rod to move. The connecting rod drives the driving rack to slide. The driving rack drives the driving gear to rotate. The driving gear drives the steering gear to rotate. The steering gear drives the driven rack to slide. The driven rack drives the upper clamping plate to approach the lower clamping plate to clamp the hydrophobic non-woven fabric. Thus, while fixing the hydrophobic non-woven fabric, the clamping of the hydrophobic non-woven fabric is also realized, simplifying the operation process.

[0016] Optionally, fifth sliding grooves are formed on the side walls on both sides of the installation groove. Sixth sliding grooves are formed on the bottom walls of the fifth sliding grooves. Right-angle grooves communicating with the two fifth sliding grooves and the two sixth sliding grooves are formed on the side walls on both sides of the upper connecting plate. The installation component includes two fixing blocks. The two fixing blocks respectively pass through the two fifth sliding grooves and are slidably connected in the two sixth sliding grooves. A second rotating shaft is rotatably connected to the two fixing blocks together. The second rotating shaft is fixedly connected to the steering gear. Connecting shafts are fixedly connected to the end faces of the two fixing blocks away from each other. The connecting shafts are slidably connected in the right-angle grooves. Second limiting rods are slidably connected to the connecting shafts. First limiting racks are also fixedly connected to the side walls on both sides of the upper connecting plate. One end of the second limiting rod passing through the connecting shaft is inserted into the tooth gaps of the first limiting rack.

[0017] By adopting the above technical solution, since the thickness of the hydrophobic non-woven fabric to be clamped is different, the stroke that the upper clamping plate needs to move is also different. Therefore, it is necessary to replace the steering gears of different sizes. At the same time, since the sizes of the steering gears are different, it is also necessary to adjust the distance between the steering gear and the driving gear; when replacing the steering gear, first slide the fixed block into the sixth chute through the fifth chute, and then slide the fixed block so that the driving gear meshes with the steering gear. At this time, pass the second limiting rod through the connecting shaft and snap it into the tooth gap of the first limiting rack.

[0018] Optionally, a groove is formed in the end face of the upper clamping plate away from the lower clamping plate along the length direction. The adjusting assembly includes an inserting block, the inserting block is fixedly connected to the end face of the driven rack close to the upper clamping plate, a limiting tooth block is fixedly connected to the side wall of the inserting block, a second limiting rack is fixedly connected to the side wall of the groove, and the limiting tooth block is snapped into the tooth gap of the second limiting rack.

[0019] By adopting the above technical solution, when replacing different steering gears, the distance between the steering gear and the driven rack also changes. Therefore, it is necessary to adjust the position of the driven rack. When adjusting the position of the driven rack, first pull the driven rack to make the limiting tooth block slide out of the tooth gap of the second limiting rack, then slide the driven rack to make the driven rack mesh with the steering gear, and then press the driven rack to make the limiting tooth block continue to snap into the tooth gap of the second limiting rack.

[0020] Optionally, first chutes are formed in the end faces of the two first mounting plates close to each other. The sliding adjustment mechanism includes a first slider, the first slider is slidably connected in the first chute, the first slider is fixedly connected to the vertical connecting plate, a rubber block is fixedly connected to one end of the first slider away from the vertical connecting plate, a plurality of screw holes are formed in the side wall of the first mounting plate away from the fixed needle, an adjusting bolt is threadedly connected in the screw hole, a thimble is fixedly connected to one end of the adjusting bolt close to the vertical connecting plate, and the end of the thimble away from the adjusting bolt is inserted into the rubber block.

[0021] By adopting the above technical solution, the setting of the first slider, the rubber block, the adjusting bolt and the thimble realizes the fixation of the hydrophobic non-woven fabric, and at the same time facilitates the adjustment of the distance between adjacent hydrophobic non-woven fabrics, and can make the gaps left between multiple layers of hydrophobic non-woven fabrics consistent.

[0022] In a second aspect, a processing technology for hydrophobic multi-layer non-woven fabric provided by the present application adopts the following technical solution: a processing technology for hydrophobic multi-layer non-woven fabric includes the following steps: Step 1: Cut the hydrophobic non-woven fabric according to the size of the hydrophobic non-woven fabric required to cover the inside of the car; Step 2: Measure the laying thickness according to the required number of laying layers, then replace the steering gear with the corresponding size according to the laying thickness, and adjust the driven rack to mesh with the steering gear; Step 3: Place the hydrophobic non-woven fabric into the U-shaped block, pull the first limiting rod, then press the fixing needle so that the fixing needle penetrates the hydrophobic non-woven fabric and inserts into the slot, and then release the first limiting rod so that the first limiting rod is inserted into the limiting slot to limit the fixing needle; when pressing the fixing needle, the transmission mechanism drives the upper clamping plate and the lower clamping plate to clamp the hydrophobic non-woven fabric; Step 4: Install a plurality of U-shaped blocks on the first mounting plate according to the moisture-proof requirements of the vehicle, and slide the first slider according to the moisture-proof requirements so that the distance between two adjacent hydrophobic non-woven fabrics meets the requirements, and then rotate the adjusting bolt to fix the hydrophobic non-woven fabric; Step 5: Weld the two first mounting plates at the position where the hydrophobic non-woven fabric needs to be laid on the vehicle so that the hydrophobic non-woven fabric is tensioned to complete the installation.

[0023] In summary, the present application includes the following beneficial technical effects: 1. A plurality of U-shaped blocks can be installed on the first mounting plate through the sliding adjustment mechanism, thereby realizing the installation of multiple layers of hydrophobic non-woven fabrics, achieving a better moisture-proof effect for the vehicle interior, and also making it more convenient to install the hydrophobic non-woven fabric in the vehicle; at the same time, the setting of the fixing needle realizes the fixation of the hydrophobic non-woven fabric, and also facilitates the replacement of the damaged hydrophobic non-woven fabric, and the present application does not use chemical adhesives, reducing the release of formaldehyde; 2. Since the diameter of the fixing needle is small, when the hydrophobic non-woven fabric is tensioned, the edge position of the hydrophobic non-woven fabric will be cut open by the fixing needle under the action of the pulling force, thereby affecting the tensioning of the hydrophobic non-woven fabric; the setting of the upper clamping plate and the lower clamping plate realizes the clamping of the edge of the hydrophobic non-woven fabric. When the hydrophobic non-woven fabric is tensioned, first clamp the edge position of the hydrophobic non-woven fabric through the upper clamping plate and the lower clamping plate, thereby reducing the probability that the edge position of the hydrophobic non-woven fabric is cut open by the fixing needle under the action of the pulling force and affecting the tensioning of the hydrophobic non-woven fabric; 3. When the hydrophobic non-woven fabric is clamped, the convex block clamps the hydrophobic non-woven fabric in the arc-shaped groove, thereby increasing the contact area between the hydrophobic non-woven fabric and the upper clamping plate and the lower clamping plate, improving the friction between the hydrophobic non-woven fabric and the upper clamping plate and the lower clamping plate, and further reducing the probability of accidental sliding when the hydrophobic non-woven fabric is tensioned; 4. When fixing the hydrophobic non-woven fabric, manually press the fixing needle. At this time, the fixing needle drives the connecting rod to move, the connecting rod drives the driving rack to slide, the driving rack drives the driving gear to rotate, the driving gear drives the steering gear to rotate, the steering gear drives the driven rack to slide, and the driven rack drives the upper clamping plate to approach the lower clamping plate to clamp the hydrophobic non-woven fabric; thus, while fixing the hydrophobic non-woven fabric, the clamping of the hydrophobic non-woven fabric is also realized, simplifying the operation process. Description of the Drawings

[0024] Figure 1 Distribution diagram of the hydrophobic multi-layer non-woven fabric in the car in the embodiment of the present application; Figure 2 Structural schematic diagram of the hydrophobic multi-layer non-woven fabric in the embodiment of the present application; Figure 3 Cross-sectional view of the limiting component in the embodiment of the present application; Figure 4 Structural schematic diagram of the sliding adjustment mechanism in the embodiment of the present application; Figure 5 For the present application Figure 3 Enlarged view of part A in; Figure 6 Structural schematic diagram of the transmission mechanism in the embodiment of the present application; Figure 7 Structural schematic diagram of the installation component in the embodiment of the present application; Figure 8 Structural schematic diagram of the adjustment component in the embodiment of the present application.

[0025] Reference numerals: 1, hydrophobic non-woven fabric; 2, first mounting plate; 21, first sliding groove; 22, screw hole; 3, sliding adjustment mechanism; 31, first slider; 32, rubber block; 33, adjustment bolt; 34, thimble; 4, fixing mechanism; 41, U-shaped block; 411, upper connecting plate; 412, vertical connecting plate; 413, lower connecting plate; 42, fixing pin; 421, limiting groove; 43, limiting component; 431, first limiting rod; 432, second slider; 433, spring; 441, slot; 442, second sliding groove; 443, third sliding groove; 444, fourth sliding groove; 445, mounting groove; 446, fifth sliding groove; 447, sixth sliding groove; 448, right-angle groove; 5, clamping mechanism; 51, upper clamping plate; 511, arc groove; 512, groove; 52, lower clamping plate; 53, convex block; 6, transmission mechanism; 61, connecting rod; 62, driving rack; 63, first rotating shaft; 64, driving gear; 65, steering gear; 66, driven rack; 67, mounting component; 671, fixing block; 672, second rotating shaft; 673, connecting shaft; 674, second limiting rod; 675, first limiting rack; 676, second penetration hole; 68, adjustment component; 681, insertion block; 682, limiting tooth block; 683, second limiting rack; 7, aerogel filler. Detailed implementation mode

[0026] The following further elaborates on this application in conjunction with the attached Figures 1-7 drawings.

[0027] The embodiment of this application discloses a hydrophobic multi-layer non-woven fabric.

[0028] Refer to Figure 1 and Figure 2 , the hydrophobic multi-layer non-woven fabric includes a fabric part and a mounting part. The fabric part is a hydrophobic non-woven fabric 1 and an aerogel filler 7. The mounting part includes two first mounting plates 2. A plurality of fixing mechanisms 4 for fixing the hydrophobic non-woven fabric 1 are mounted on both of the two first mounting plates 2 through a sliding adjustment mechanism 3. A clamping mechanism 5 for clamping the hydrophobic non-woven fabric 1 is mounted on the fixing mechanism 4.

[0029] A plurality of fixing mechanisms 4 are mounted on the two first mounting plates 2 through a sliding adjustment mechanism 3. Two symmetrically arranged fixing mechanisms 4 jointly fix one layer of hydrophobic non-woven fabric 1, thereby realizing the installation of multiple layers of hydrophobic non-woven fabric 1 and achieving a better moisture-proof effect for the automotive interior. At the same time, an aerogel filler 7 is filled between adjacent hydrophobic non-woven fabrics 1, which can support the hydrophobic non-woven fabric 1. Additionally, the two first mounting plates 2 can tension the hydrophobic non-woven fabric 1, and the installation of the hydrophobic non-woven fabric 1 is realized through the installation of the first mounting plates 2 in the vehicle, making it more convenient to install the hydrophobic non-woven fabric 1 in the vehicle. Moreover, this application does not use chemical adhesives, reducing the release of formaldehyde.

[0030] Reference Figure 2 and Figure 3 Figure 3 , the fixing mechanism 4 includes a U-shaped block 41 which is composed of an upper connecting plate 411, a vertical connecting plate 412 and a lower connecting plate 413. The vertical connecting plate 412 is connected to the sliding adjustment mechanism 3. The hydrophobic non-woven fabric 1 is located between the upper connecting plate 411 and the lower connecting plate 413. The aerogel filler 7 is located between two adjacent hydrophobic non-woven fabrics 1. One end of the upper connecting plate 411 away from the lower connecting plate 413 is provided with a first penetration hole, and a fixing needle 42 is slidably connected in the first penetration hole; a slot 441 is provided on the end surface of the lower connecting plate 413 close to the upper connecting plate 411, and a second chute 442 communicating with the slot 441 is provided on the end surface of the lower connecting plate 413 away from the vertical connecting plate 412. A third chute 443 is provided on the side wall of the second chute 442. A limiting groove 421 is provided on the side wall of the fixing needle 42. One end of the fixing needle 42 away from the upper connecting plate 411 is inserted into the slot 441. The fixing mechanism 4 further includes a limiting component 43, and the limiting component 43 includes a first limiting rod 431. The first limiting rod 431 is inserted into the first chute 21 and one end passing through the first chute 21 is located in the slot 441. A second slider 432 is slidably connected in the third chute 443. The second slider 432 is fixedly connected to the first limiting rod 431. A spring 433 is fixedly connected to the side wall of the third chute 443 away from the first mounting plate 2. One end of the spring 433 close to the first mounting plate 2 is fixedly connected to the second slider 432.

[0031] When fixing the hydrophobic non-woven fabric 1, first manually pull the first limiting rod 431. The first limiting rod 431 slides out of the slot 441 and compresses the spring 433 through the second slider 432. Then manually press the fixing needle 42. The fixing needle 42 pierces the hydrophobic non-woven fabric 1 and is inserted into the slot 441. At this time, release the first limiting rod 431. The spring 433 drives the first limiting rod 431 to be inserted into the limiting groove 421 through the second slider 432 to limit the fixing needle 42.

[0032] Reference Figure 4 Figure 4 , on the end faces of the two first mounting plates 2 close to each other, first chutes 21 are provided along the length direction. The sliding adjustment assembly 68 includes a first slider 31. The first slider 31 is slidably connected in the first chute 21 and is fixedly connected to the vertical connecting plate 412. One end of the first slider 31 away from the vertical connecting plate 417 is fixedly connected to a rubber block 32. A plurality of screw holes 22 are provided on the end face of the first mounting plate 2 away from the vertical connecting plate 417. The plurality of screw holes 22 communicate with the first chute 21. An adjusting bolt 33 is threadedly connected in the screw hole 22. One end of the adjusting bolt 33 close to the first slider 31 is fixedly connected to a thimble 34, and the thimble 34 pierces into the rubber pad.

[0033] The settings of the first slider 31, rubber block 32, adjusting bolt 33 and ejector pin 34 achieve the fixation of the hydrophobic non-woven fabric 1, and at the same time facilitate the adjustment of the distance between adjacent hydrophobic non-woven fabrics 1, and can make the gaps left between multiple layers of hydrophobic non-woven fabrics 1 consistent.

[0034] Reference Figure 5 , a fourth chute 444 is opened along the length direction on the end face of the vertical connecting plate 412 close to the fixed needle 42. The clamping mechanism 5 includes an upper clamping plate 51 which is slidably connected in the fourth chute 444, and a lower clamping plate 52 is fixedly connected to the end face of the lower connecting plate 413 close to the upper connecting plate 411; a plurality of arc-shaped grooves 511 are opened on the end face of the upper clamping plate 51 close to the lower clamping plate 52, and a convex block 53 is fixedly connected to the end face of the lower clamping plate 52 close to the upper clamping plate 51, and the convex block 53 is adapted to the arc-shaped grooves 511.

[0035] Since the diameter of the fixed needle 42 is small, when the hydrophobic non-woven fabric 1 is tensioned, the edge position of the hydrophobic non-woven fabric 1 will be cut open by the fixed needle 42 under the action of the pulling force, thereby affecting the tensioning of the hydrophobic non-woven fabric 1; the settings of the upper clamping plate 51 and the lower clamping plate 52 achieve the clamping of the edge of the hydrophobic non-woven fabric 1. When the hydrophobic non-woven fabric 1 is tensioned, the edge position of the hydrophobic non-woven fabric 1 is clamped by the upper clamping plate 51 and the lower clamping plate 52, thereby reducing the probability that the edge position of the hydrophobic non-woven fabric 1 is cut open by the fixed needle 42 under the action of the pulling force and affecting the tensioning of the hydrophobic non-woven fabric 1; at the same time, when clamping, the convex block 53 clamps the hydrophobic non-woven fabric 1 in the arc-shaped grooves 511, thereby increasing the contact area between the hydrophobic non-woven fabric 1 and the upper clamping plate 51 and the lower clamping plate 52, improving the friction between the hydrophobic non-woven fabric 1 and the upper clamping plate 51 and the lower clamping plate 52, and further reducing the probability of accidental sliding when the hydrophobic non-woven fabric 1 is tensioned.

[0036] Reference Figure 6 , an installation groove 445 is opened along the length direction on the end face of the upper connecting plate 411 away from the lower connecting plate 413. A transmission mechanism 6 is installed on the fixed needle 42. The transmission mechanism 6 includes a connecting rod 61 which is fixedly connected to the side wall of the fixed needle 42. One end of the connecting rod 61 away from the fixed needle 42 is fixedly connected with a driving rack 62. The side walls on both sides of the installation groove 445 are rotatably connected with a first rotating shaft 63, and a driving gear 64 is fixedly connected to the first rotating shaft 63. The driving gear 64 meshes with the driving rack 62. A steering gear 65 is also rotatably connected in the installation groove 445 through an installation component 67. The steering gear 65 meshes with the driving gear 64. A driven rack 66 is installed on the end face of the upper clamping plate 51 away from the lower clamping plate 52 through an adjusting component 68, and the driven rack 66 meshes with the steering gear 65.

[0037] When fixing the hydrophobic non-woven fabric 1, manually press the fixing needle 42. At this time, the fixing needle 42 drives the connecting rod 61 to move, the connecting rod 61 drives the driving rack 62 to slide, the driving rack 62 drives the driving gear 64 to rotate, the driving gear 64 drives the steering gear 65 to rotate, the steering gear 65 drives the driven rack 66 to slide, and the driven rack 66 drives the upper clamping plate 51 to approach the lower clamping plate 52 to clamp the hydrophobic non-woven fabric 1; thus, while fixing the hydrophobic non-woven fabric 1, the clamping of the non-woven fabric is also realized, simplifying the operation process.

[0038] Reference Figure 7 , on the side walls on both sides of the installation groove 445, fifth sliding grooves 446 are opened, on the bottom wall of the fifth sliding groove 446, a sixth sliding groove 447 is opened, on the side walls on both sides of the upper connecting plate 411, right-angle grooves 448 communicating with the two fifth sliding grooves 446 and the two sixth sliding grooves 447 are opened. The installation component 67 includes two fixing blocks 671. The two fixing blocks 671 respectively pass through the two fifth sliding grooves 446 and are slidably connected in the two sixth sliding grooves 447. The ends of the two fixing blocks 671 close to each other are jointly rotatably connected with a second rotating shaft 672. The second rotating shaft 672 is fixedly connected with the steering gear 65; in the two right-angle grooves 448, connecting shafts 673 are slidably connected. The two connecting shafts 673 are respectively fixedly connected with the two fixing blocks 671. On the side wall of the connecting shaft 673, a second through hole 676 is opened. In the second through hole 676, a second limiting rod 674 is slidably connected. On the side walls on both sides of the upper connecting plate 411, first limiting racks 675 are fixedly connected. The second limiting rod 674 passes through the second through hole 676 and is inserted into the tooth gaps of the first limiting rack 675.

[0039] Since the thickness of the hydrophobic non-woven fabric 1 to be clamped is different, the stroke that the upper clamping plate 51 needs to move is also different. Therefore, it is necessary to replace the steering gear 65 with different sizes. At the same time, since the sizes of the steering gears 65 are different, it is also necessary to adjust the distance between the steering gear 65 and the driving gear 64; when replacing the steering gear 65, first slide the fixing block 671 through the fifth sliding groove 446 into the sixth sliding groove 447, and then slide the fixing block 671 to make the driving gear 64 mesh with the steering gear 65. At this time, insert the second limiting rod 674 through the second through hole 676 and snap it into the tooth gap of the first limiting rack 675.

[0040] Reference Figure 8 , on the end face of the upper clamping plate 51 away from the lower clamping plate 52, a groove 512 is opened along the length direction. The adjusting component 68 includes an inserting block 681. The inserting block 681 is fixedly connected to the end face of the driven rack 66 close to the upper clamping plate 51. On the side wall of the inserting block 681, a limiting tooth block 682 is fixedly connected. On the side wall of the groove 512, a second limiting rack 683 is fixedly connected. The limiting tooth block 682 is snapped into the tooth gap of the second limiting rack 683.

[0041] When replacing different steering gears 65, the distance between the steering gear 65 and the driven rack 66 also changes. Therefore, it is necessary to adjust the position of the driven rack 66. When adjusting the position of the driven rack 66, first pull the driven rack 66 to make the limit tooth block 682 slide out of the tooth gap of the second limit rack 683, then slide the driven rack 66 to make the driven rack 66 engage with the steering gear 65, and then press the driven rack 66 to make the limit tooth block 682 continue to be clamped into the tooth gap of the second limit rack 683.

[0042] The implementation principle of a hydrophobic multi-layer non-woven fabric in an embodiment of the present application is as follows: The fixation of the hydrophobic non-woven fabric 1 is achieved through the arrangement of the U-shaped block 41 and the fixing needle 42, which facilitates the tensioning of the hydrophobic non-woven fabric 1 and the replacement of the damaged hydrophobic non-woven fabric 1. At the same time, the U-shaped block 41 is slidably connected to the first mounting plate 2, and thus multiple layers of hydrophobic non-woven fabric 1 can be mounted through the first mounting plate 2, and the distance between multiple layers of hydrophobic non-woven fabric 1 can be adjusted.

[0043] The embodiment of the present application also discloses a processing technology for a hydrophobic multi-layer non-woven fabric.

[0044] A processing technology for a hydrophobic multi-layer non-woven fabric includes the following steps: Step 1: Cut the hydrophobic non-woven fabric 1 according to the size required for covering the hydrophobic non-woven fabric 1 inside the vehicle. Step 2: Measure the laying thickness according to the required laying layers, then replace the steering gear 65 with a corresponding size according to the laying thickness, and adjust the driven rack 66 to make it engage with the steering gear 65. Step 3: Place the hydrophobic non-woven fabric 1 into the U-shaped block 41, pull the first limiting rod 431, then press the fixing needle 42 to make the fixing needle 42 pierce through the hydrophobic non-woven fabric 1 and insert it into the slot 441, and then release the first limiting rod 431 to make the first limiting rod 431 inserted into the limiting slot 421 to limit the fixing needle 42; when pressing the fixing needle 42, the transmission mechanism 6 drives the upper clamping plate 51 and the lower clamping plate 52 to clamp the hydrophobic non-woven fabric 1. Step 4: Install a plurality of U-shaped blocks 41 on the first mounting plate 2 according to the moisture-proof requirements of the vehicle, and slide the first slider 31 according to the moisture-proof requirements to make the distance between two adjacent hydrophobic non-woven fabrics 1 meet the requirements, and then rotate the adjusting bolt 33 to fix the hydrophobic non-woven fabric 1. Step 5: Weld the two first mounting plates 2 at the position where the hydrophobic non-woven fabric 1 needs to be laid in the vehicle to make the hydrophobic non-woven fabric 1 tensioned, and complete the installation.

[0045] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A hydrophobic multilayer nonwoven fabric, characterized in that: The invention comprises a fabric part and a mounting part, wherein the fabric part is a hydrophobic non-woven fabric (1) and an aerogel filler (7), and the mounting part comprises two first mounting plates (2), and a fixing mechanism (4) is mounted on each of the two first mounting plates (2) via a sliding adjustment mechanism (3), wherein the fixing mechanism (4) comprises a U-shaped block (41), and the U-shaped block (41) is composed of an upper connecting plate (411), a vertical connecting plate (412), and a lower connecting plate (413), wherein the hydrophobic non-woven fabric (1) is placed between the upper connecting plate (411) and the lower connecting plate (413), and the aerogel filler (7) is located between two adjacent hydrophobic non-woven fabrics (1), and a fixing pin (42) is slidably connected to the upper connecting plate (411). The fixing mechanism (4) further comprises a limiting component (43), and the limiting component (43) is mounted on the lower connecting plate (413).

2. The hydrophobic multilayer nonwoven fabric according to claim 1, characterized in that: A slot (441) is provided on the end surface of the lower connecting plate (413) close to the upper connecting plate (411), a second slide groove (442) connected to the slot (441) is provided on the end surface of the lower connecting plate (413) away from the vertical connecting plate (412), a third slide groove (443) is provided on the side wall of the second slide groove (442), a limiting groove (421) is provided on the side wall of the fixing pin (42), one end of the fixing pin (42) away from the upper connecting plate (411) is inserted into the slot (441), and the limiting assembly (43) includes a first limiting groove (421) and a second limiting groove (423) disposed on the side wall of the fixing pin (42). The first limiting rod (431) is slidably connected to the second sliding groove (442), and one end of the first limiting rod (431) passes through the second sliding groove (442) and is inserted into the slot (441). The second slider (432) is slidably connected to the third sliding groove (443). The second slider (432) is fixedly connected to the first limiting rod (431). A spring (433) is fixedly connected to the side wall of the third sliding groove (443) away from the fixing needle (42), and one end of the spring (433) close to the fixing needle (42) is fixedly connected to the second slider (432).

3. The hydrophobic multilayer nonwoven fabric according to claim 2, characterized in that: A fourth slide groove (444) is provided on the end surface of the vertical connecting plate (412) close to the fixed needle (42). A clamping mechanism (5) is installed on the vertical connecting plate (412). The clamping mechanism (5) comprises an upper clamping plate (51) and a lower clamping plate (52). The upper clamping plate (51) is slidably connected in the fourth slide groove (444), and the lower clamping plate (52) is fixedly connected to the lower connecting plate (413).

4. The hydrophobic multilayer nonwoven fabric according to claim 3, characterized in that: A plurality of arc-shaped grooves (511) are formed on the end surface of the upper clamping plate (51) close to the lower clamping plate (52), and a plurality of protrusions (53) are fixedly connected to the end surface of the lower clamping plate (52) close to the upper clamping plate (51), wherein the protrusions (53) and the arc-shaped grooves (511) are symmetrically arranged and mutually adapted.

5. The hydrophobic multilayer nonwoven fabric according to claim 4, characterized in that: The fixed needle (42) is provided with a transmission mechanism (6), the transmission mechanism (6) comprising a connecting rod (61), the connecting rod (61) being fixedly connected to the fixed needle (42), the connecting rod (61) being fixedly connected to a driving rack (62), a mounting groove (445) being provided on an end surface of the upper connecting plate (411) away from the lower connecting plate (413), a first rotating shaft (63) being rotatably connected in the mounting groove (445), and a driving rack (62) being fixedly connected to the first rotating shaft (63). A driven gear (64) is meshed with the driving rack (62); a steering gear (65) is rotatably connected to the mounting groove (445) via a mounting assembly (67); the steering gear (65) is meshed with the driving gear (64); a driven rack (66) is slidably connected to the mounting groove (445); the driven rack (66) is connected to the upper clamping plate (51) via an adjusting assembly (68); and the driven rack (66) is meshed with the steering gear (65).

6. The hydrophobic multilayer nonwoven fabric according to claim 5, characterized in that: The side walls on both sides of the installation groove (445) are provided with fifth slide grooves (446), the bottom wall of the fifth slide groove (446) is provided with a sixth slide groove (447), the side walls on both sides of the upper connecting plate (411) are provided with right-angle grooves (448) connected with the two fifth slide grooves (446) and the two sixth slide grooves (447), the installation component (67) includes two fixed blocks (671), the two fixed blocks (671) respectively pass through the two fifth slide grooves (446) and are slidably connected to the two sixth slide grooves (447), and the two fixed blocks (671) are rotatably connected together with A second rotating shaft (672), the second rotating shaft (672) is fixedly connected to the steering gear (65); the end surfaces of the two fixed blocks (671) that are away from each other are fixedly connected with a connecting shaft (673), the connecting shaft (673) is slidably connected in the right-angle groove (448), a second limiting rod (674) is slidably connected to the connecting shaft (673), and the side walls on both sides of the upper connecting plate (411) are also fixedly connected with a first limiting rack (675), and the second limiting rod (674) passes through one end of the connecting shaft (673) and is inserted into the tooth gap of the first limiting rack (675).

7. The hydrophobic multilayer nonwoven fabric according to claim 6, characterized in that: A groove (512) is provided along the length direction on the end surface of the upper clamping plate (51) away from the lower clamping plate (52); the adjustment component (68) includes an insert block (681); the insert block (681) is fixedly connected to the end surface of the driven rack (66) close to the upper clamping plate (51); a limiting tooth block (682) is fixedly connected to the side wall of the insert block (681); a second limiting rack (683) is fixedly connected to the side wall of the groove (512); and the limiting tooth block (682) is clamped in the tooth gap of the second limiting rack (683).

8. The hydrophobic multilayer nonwoven fabric according to claim 7, characterized in that: A first sliding groove (21) is provided on the end surfaces of the two first mounting plates (2) close to each other. The sliding adjustment mechanism (3) comprises a first sliding block (31). The first sliding block (31) is slidably connected in the first sliding groove (21). The first sliding block (31) is fixedly connected to the vertical connecting plate (412). One end of the first sliding block (31) away from the vertical connecting plate (412) is fixedly connected to a rubber block (32). A plurality of screw holes (22) are provided on the side wall of the first mounting plate (2) away from the fixing pin (42). Adjustment bolts (33) are threadedly connected in the screw holes (22). One end of the adjustment bolt (33) close to the vertical connecting plate (412) is fixedly connected to a ejector pin (34). One end of the ejector pin (34) away from the adjustment bolt (33) is inserted into the rubber block (32).

9. A hydrophobic multilayer nonwoven fabric processing process, characterized in that: Processing the hydrophobic multilayer nonwoven fabric according to claim 8 comprises the following steps: Step 1: Cut the hydrophobic non-woven fabric (1) according to the size of the hydrophobic non-woven fabric (1) required to cover the interior of the car; Step 2: Measure the paving thickness according to the required number of paving layers, replace the steering gear (65) of corresponding size according to the paving thickness, and adjust the driven rack (66) to make it mesh with the steering gear (65); Step 3: Place the hydrophobic non-woven fabric (1) into the U-shaped block (41), pull the first limiting rod (431), and then press the fixing needle (42) so that the fixing needle (42) pierces the hydrophobic non-woven fabric (1) and is inserted into the slot (441), and then release the first limiting rod (431) so that the first limiting rod (431) is inserted into the limiting slot (421) to limit the fixing needle (42); when the fixing needle (42) is pressed, the transmission mechanism (6) drives the upper clamping plate (51) and the lower clamping plate (52) to clamp the hydrophobic non-woven fabric (1); Step 4: installing a plurality of U-shaped blocks (41) on the first mounting plate (2) according to the moisture-proof requirements of the automobile, and sliding the first sliding block (31) according to the moisture-proof requirements so that the distance between two adjacent hydrophobic non-woven fabrics (1) meets the requirements, and then rotating the adjusting bolt (33) to fix the hydrophobic non-woven fabrics (1); Step 5: Welding the two first mounting plates (2) at the position where the hydrophobic non-woven fabric (1) is to be laid on the automobile, so that the hydrophobic non-woven fabric (1) is tensioned, and the installation is completed.

Images