Waterproof sound insulation felt in automobile metal plate cavity

Abstract

The utility model discloses a waterproof deadening felt in an automobile metal plate cavity, and relates to the technical field of waterproof deadening felts.The waterproof deadening felt comprises a base layer and a release film, the release film is installed on the rear wall face of the base layer, sound absorption cotton is installed on the front wall face of the base layer, and a connecting structure is installed on the front wall face of the base layer; the front wall face of the connecting structure is connected with a fixing structure, the front wall face of the fixing structure is connected with a sound insulation structure, sound absorption cotton is placed between a fixed bearing hook-and-loop fastener and a fixed edge sealing hook-and-loop fastener, and then four limiting rods are aligned with four limiting holes to be inserted into the four limiting holes. The two sound insulation layers are fixed by aligning a plurality of guide blocks with a plurality of fixed guide holes and inserting the guide blocks into the fixed guide holes, so that the problems that the sound insulation layers and the waterproof layers are gradually aged after the waterproof sound insulation felt in the existing automobile metal plate cavity is mounted, and the sound insulation layers cannot be fixed are solved. And the replacement is very troublesome due to the fact that the whole is dismantled.

Description

TECHNICAL FIELD

[0001] The utility model relates to waterproof sound insulation felt technical field, especially in a kind of automobile sheet metal cavity waterproof sound insulation felt. BACKGROUND

[0002] With the development of automobile industry, people's comfort and durability of car are more and more high. As an important part of vehicle structure, the waterproof and sound insulation performance of automobile sheet metal cavity has a significant impact on the quality of the whole vehicle. In actual use, water splashed during driving, rainwater and the like are easy to enter the sheet metal cavity through various gaps, causing the sheet metal to rust and corrode, and shortening the service life of the automobile. At the same time, the noise from the outside will also be transmitted into the car through the sheet metal cavity, reducing the comfort of driving and riding.

[0003] The existing waterproof sound insulation felt in the automobile sheet metal cavity will gradually age after installation, and the replacement requires the whole to be removed, which is very troublesome. The existing waterproof sound insulation felt in the automobile sheet metal cavity usually adopts single-layer polyurethane foam material, and the sound insulation effect is very limited. SUMMARY

[0004] The technical problem to be solved by the utility model is that the existing waterproof sound insulation felt in the automobile sheet metal cavity will gradually age after installation, and the replacement requires the whole to be removed, which is very troublesome. The existing waterproof sound insulation felt in the automobile sheet metal cavity usually adopts single-layer polyurethane foam material, and the sound insulation effect is very limited.

[0005] In order to solve the above technical problems, the technical scheme of the utility model is a waterproof sound insulation felt in the automobile sheet metal cavity, which comprises a base layer and a release film. The release film is installed on the rear wall surface of the base layer. The front wall surface of the base layer is provided with sound-absorbing cotton. The front wall surface of the base layer is provided with a connecting structure. The front wall surface of the connecting structure is connected with a fixing structure. The front wall surface of the fixing structure is connected with a sound insulation structure. The outer wall surface of the sound insulation structure is sleeved with a waterproof structure. The connecting structure comprises a fixed load-bearing magic tape, a fixed locking magic tape, a fixed edge magic tape and a locking edge magic tape. The fixed load-bearing magic tape is installed on the front wall surface of the base layer. The fixed locking magic tape is attached to the front wall surface of the fixed load-bearing magic tape. The fixed edge magic tape is installed on the front wall surface of the base layer. The locking edge magic tape is attached to the front wall surface of the fixed edge magic tape.

[0006] As a further scheme of the utility model, the fixing structure comprises four limiting holes, four limiting rods, a fixed plate and a plurality of fixed guide holes. The four limiting holes are respectively formed in the sound-absorbing cotton. The four limiting rods are respectively connected in the four limiting holes. The fixed plate is installed on the front wall surface of the four limiting rods and is respectively connected with the fixed locking magic tape and the locking edge magic tape. The plurality of fixed guide holes are respectively formed in the front wall surface of the fixed plate.

[0007] As a further scheme of the utility model: the sound insulation structure includes: two sound insulation layers, a plurality of fixed holes and a plurality of sound absorption particles;Two sound insulation layers are connected to the front wall of the fixed plate respectively, a plurality of fixed holes are opened between two sound insulation layers respectively, and a plurality of sound absorption particles are connected in a plurality of fixed holes respectively.

[0008] As a further scheme of the utility model: the waterproof structure includes: a plurality of guide blocks, a waterproof layer and a plurality of waterproof guide holes;A plurality of guide blocks are installed on the outer wall of two sound insulation layers respectively, and are connected with a plurality of fixed guide holes, and the waterproof layer is sleeved on the outer wall of a plurality of guide blocks through a plurality of waterproof guide holes.

[0009] As a further scheme of the utility model: the base layer adopts polyester fiber non-woven fabric, and the thickness is accurately controlled at 3-4 millimeters.

[0010] As a further scheme of the utility model: the sound insulation layer adopts modified polyurethane foam material.

[0011] As a further scheme of the utility model: the waterproof layer adopts butyl rubber material.

[0012] The utility model adopts the above technical scheme, compared with prior art, has the following advantages:

[0013] The sound absorption cotton is placed between the fixed load-bearing magic tape and the fixed edge magic tape, four limiting rods are respectively aligned with four limiting holes and are inserted, until the fixed load-bearing magic tape, the fixed locking magic tape, the fixed edge magic tape and the locking edge magic tape are mutually pasted, then a plurality of guide blocks are aligned with a plurality of fixed guide holes and are inserted, two sound insulation layers are fixed, solve the existing waterproof sound insulation felt in the automobile sheet metal cavity after installation sound insulation layer and waterproof layer will gradually age, and the replacement needs to be removed as a whole, it is very troublesome.

[0014] The sound absorption cotton is preliminarily sound-insulated, then two sound insulation layers are used for secondary sound insulation, and finally a plurality of sound absorption particles and a plurality of fixed holes are used to complete the final sound insulation, so that the existing waterproof sound insulation felt in the automobile sheet metal cavity is usually made of single-layer polyurethane foam material, and the sound insulation effect is very limited. ACCURACY

[0015] Figure 1 It is the whole structure schematic diagram of the waterproof sound insulation felt in the automobile sheet metal cavity in the utility model embodiment;

[0016] Figure 2 It is the connection structure schematic diagram of the waterproof sound insulation felt in the automobile sheet metal cavity in the utility model embodiment;

[0017] Figure 3The utility model discloses an automobile sheet metal cavity waterproof sound insulation felt sound insulation structure schematic view of one kind in the embodiment of the utility model.

[0018] Figure 4 The utility model discloses an automobile sheet metal cavity waterproof sound insulation felt waterproof structure schematic view of one kind in the embodiment of the utility model.

[0019] In the drawing: 1, base layer, 2, release film, 3, sound-absorbing cotton, 4, fixed load-bearing magic tape, 5, fixed locking magic tape, 6, fixed edge sealing magic tape, 7, locking edge sealing magic tape, 8, limiting hole, 9, limiting rod, 10, fixed plate, 11, fixed guide hole, 12, sound insulation layer, 13, fixed hole, 14, sound-absorbing particle, 15, guide block, 16, waterproof layer, 17, waterproof guide hole. Specific embodiments

[0020] The specific embodiments of the utility model will be further described below in combination with the drawings. It needs to be explained here that the description of these embodiments is used to help understanding the utility model, but does not constitute the limitation to the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0021] Please refer to Figures 1-4 An automobile sheet metal cavity waterproof sound insulation felt, including base layer 1 and release film 2, release film 2 is installed on the rear wall surface of base layer 1, the front wall surface of base layer 1 is provided with sound-absorbing cotton 3, the front wall surface of base layer 1 is provided with connecting structure, the front wall surface of connecting structure is connected with fixed structure, the front wall surface of fixed structure is connected with sound insulation structure, and the outer wall surface of sound insulation structure is sleeved with waterproof structure;Connecting structure includes: fixed load-bearing magic tape 4, fixed locking magic tape 5, fixed edge sealing magic tape 6 and locking edge sealing magic tape 7;Fixed load-bearing magic tape 4 is installed on the front wall surface of base layer 1, fixed locking magic tape 5 is pasted on the front wall surface of fixed load-bearing magic tape 4, fixed edge sealing magic tape 6 is installed on the front wall surface of base layer 1, and locking edge sealing magic tape 7 is pasted on the front wall surface of fixed edge sealing magic tape 6.

[0022] Please refer to Figures 1-2 Fixed structure includes: four limiting holes 8, four limiting rods 9, a fixed plate 10 and a plurality of fixed guide holes 11;Four limiting holes 8 are respectively formed on sound-absorbing cotton 3, four limiting rods 9 are respectively connected in four limiting holes 8, fixed plate 10 is installed on the front wall surface of four limiting rods 9, and is respectively connected with fixed locking magic tape 5 and locking edge sealing magic tape 7, and a plurality of fixed guide holes 11 are respectively formed on the front wall surface of fixed plate 10.

[0023] Please refer to Figure 3The sound insulation structure comprises two sound insulation layers 12, a plurality of fixed holes 13 and a plurality of sound absorption particles 14; the two sound insulation layers 12 are respectively connected to the front wall surface of the fixed plate 10, the plurality of fixed holes 13 are respectively arranged between the two sound insulation layers 12, and the plurality of sound absorption particles 14 are respectively connected in the plurality of fixed holes 13.

[0024] Please refer to Figure 4 The waterproof structure comprises a plurality of guide blocks 15, a waterproof layer 16 and a plurality of waterproof guide holes 17; the plurality of guide blocks 15 are respectively installed on the outer wall surface of the two sound insulation layers 12 and are connected with the plurality of fixed guide holes 11, and the waterproof layer 16 is sleeved on the outer wall surface of the plurality of guide blocks 15 through the plurality of waterproof guide holes 17.

[0025] Please refer to Figure 1 The base layer 1 is made of polyester fiber non-woven fabric, and the thickness is accurately controlled at 3-4 mm; when in use, the 3-4 mm polyester fiber non-woven fabric has toughness and mechanical properties, and can adhere to different planes while ensuring sufficient supporting force.

[0026] Please refer to Figure 3 The sound insulation layer 12 is made of modified polyurethane foam material; when in use, the modified polyurethane foam material has good blocking and absorption effect on high-frequency and low-frequency noise, significantly reduces the noise in the vehicle, and improves the riding comfort.

[0027] Please refer to Figure 4 The waterproof layer 16 is made of butyl rubber material; when in use, the butyl rubber material can effectively block water, prevent the sheet metal from rusting and corroding, and prolong the service life of the automobile sheet metal.

[0028] In this embodiment, the sound-absorbing cotton 3 is placed between the fixed load-bearing magic tape 4 and the fixed edge sealing magic tape 6, and then four limiting rods 9 are respectively aligned with four limiting holes 8 and inserted until the fixed load-bearing magic tape 4, the fixed locking magic tape 5, the fixed edge sealing magic tape 6 and the locking edge sealing magic tape 7 are mutually attached, and then a plurality of guide blocks 15 are aligned with a plurality of fixed guide holes 11 and inserted to fix the two sound insulation layers 12.

[0029] Specifically, during installation, the operator first cleans the sundries in the automobile sheet metal cavity, ensures that the sheet metal surface is flat and dry, then tears off the release film 2 on the surface of the adhesive layer of the base layer 1, aligns the base layer 1 with the position of the sheet metal cavity, slowly pastes it, and at the same time, presses it gently with hands or tools to make it fully adhere to the sheet metal. During the pasting process, attention should be paid to tightly adhere the elastic sealing edge to the inner wall of the sheet metal, then place the sound-absorbing cotton 3 between the fixed load-bearing magic tape 4 and the fixed sealing magic tape 6, then insert the four limiting rods 9 into the four limiting holes 8 respectively until the fixed load-bearing magic tape 4, the fixed locking magic tape 5, the fixed sealing magic tape 6 and the locking sealing magic tape 7 are mutually adhered, then insert the plurality of guide blocks 15 into the plurality of fixed guide holes 11 to fix the two sound insulation layers 12, then apply waterproof hot melt adhesive on the edge of the base layer 1, and finally insert the plurality of waterproof guide holes 17 into the remaining guide blocks 15 respectively until the waterproof layer 16 is pasted on the waterproof hot melt adhesive.

[0030] In the embodiment, the sound-absorbing cotton 3 is used for preliminary sound insulation, then the two sound insulation layers 12 are used for secondary sound insulation, and finally the plurality of sound-absorbing particles 14 and the plurality of fixing holes 13 are used for final sound insulation.

[0031] Specifically, during replacement, the edge of the waterproof layer 16 is heated to melt the waterproof hot melt adhesive, then the waterproof layer 16 is pulled out along the plurality of guide blocks 15, then the two sound insulation layers 12 are pulled out from the plurality of fixed guide holes 11 along the plurality of guide blocks 15, then the residual adhesive on the base layer 1 is cleaned, and new sound insulation layers 12 and a waterproof layer 16 are replaced.

[0032] The embodiments of the utility model are described in detail in combination with the drawings, but the utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, and still fall within the protection scope of the utility model.

Claims

1. A waterproof and sound-insulating felt for automotive sheet metal cavities, comprising a base layer (1) and a release film (2), characterized in that, The release film (2) is installed on the rear wall of the base layer (1), the sound-absorbing cotton (3) is installed on the front wall of the base layer (1), the connecting structure is installed on the front wall of the base layer (1), the connecting structure is connected to the front wall of the connecting structure, the sound insulation structure is connected to the front wall of the fixed structure, and the sound insulation structure is fitted with a waterproof structure on its outer wall. The connection structure includes: a fixed load-bearing hook and loop fastener (4), a fixed locking hook and loop fastener (5), a fixed edge sealing hook and loop fastener (6), and a locking edge sealing hook and loop fastener (7); The fixed load-bearing hook and loop fastener (4) is installed on the front wall of the base layer (1), the fixed locking hook and loop fastener (5) is pasted on the front wall of the fixed load-bearing hook and loop fastener (4), the fixed edge sealing hook and loop fastener (6) is installed on the front wall of the base layer (1), and the locking edge sealing hook and loop fastener (7) is pasted on the front wall of the fixed edge sealing hook and loop fastener (6).

2. The waterproof and sound-insulating felt for automotive sheet metal cavities according to claim 1, characterized in that, The fixing structure includes: four limiting holes (8), four limiting rods (9), a fixing plate (10), and several fixing guide holes (11); The four limiting holes (8) are respectively opened on the sound-absorbing cotton (3), the four limiting rods (9) are respectively connected in the four limiting holes (8), the fixing plate (10) is installed on the front wall of the four limiting rods (9) and is respectively connected to the fixing locking Velcro (5) and the locking sealing Velcro (7), and a number of fixing guide holes (11) are respectively opened on the front wall of the fixing plate (10).

3. The waterproof and sound-insulating felt for automotive sheet metal cavities according to claim 2, characterized in that, The sound insulation structure includes: two sound insulation layers (12), several fixing holes (13), and several sound absorbing particles (14); The two sound insulation layers (12) are respectively connected to the front wall of the fixing plate (10), and a number of fixing holes (13) are respectively opened between the two sound insulation layers (12), and a number of sound absorbing particles (14) are respectively connected in the number of fixing holes (13).

4. The waterproof and sound-insulating felt for automotive sheet metal cavities according to claim 3, characterized in that, The waterproof structure includes: a plurality of guide blocks (15), a waterproof layer (16), and a plurality of waterproof guide holes (17); Several guide blocks (15) are respectively installed on the outer wall of two sound insulation layers (12) and connected to several fixed guide holes (11). The waterproof layer (16) is fitted onto the outer wall of several guide blocks (15) through several waterproof guide holes (17).

5. The waterproof and sound-insulating felt for automotive sheet metal cavities according to claim 1, characterized in that, The base layer (1) is made of polyester fiber nonwoven fabric, and its thickness is precisely controlled at 3-4 mm.

6. The waterproof and sound-insulating felt for automotive sheet metal cavities according to claim 3, characterized in that, The sound insulation layer (12) is made of modified polyurethane foam material.

7. The waterproof and sound-insulating felt for automotive sheet metal cavities according to claim 4, characterized in that, The waterproof layer (16) is made of butyl rubber.

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