Automobile part made of rubber foaming soundproof material

Abstract

The utility model discloses a rubber foaming soundproof material automobile part, and particularly relates to the technical field of automobile parts, which comprises a part assembly, the part assembly comprises a first rubber sleeve, a second rubber sleeve is fixedly arranged in the first rubber sleeve, and the second rubber sleeve is fixedly arranged in the second rubber sleeve. A first sound-proof felt and a first rock wool board which are distributed up and down are arranged between the bottom of the second rubber sleeve and the first rubber sleeve, an annular groove is formed in the top of the second rubber sleeve, and a foaming sound-proof layer is arranged in the annular groove. The foaming sound-proof layer is arranged in the second rubber sleeve, the foaming sound-proof layer is a mixed layer of the rubber foaming layer and the foamed aluminum layer, the space in the second rubber sleeve is filled with the rubber foaming layer and the foamed aluminum layer after the rubber foaming layer and the foamed aluminum layer are heated and expanded, and gas generated in the expansion process is sprayed out through the four first air outlet holes and the four second air outlet holes; the expansion speed of the foaming sound-proof layer can be increased, the air pressure in the second rubber sleeve can be prevented from being too large, and the safety of the workpiece assembly is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to an automobile part made of rubber foaming soundproofing material. Background Art

[0002] Noise, vibration and comfort are the three major technical indicators to measure the level of modern automobile manufacturing. In order to improve these three indicators, in addition to active breakthroughs in technology, such as improving the engine structure, improving the body structure, and improving the processing accuracy and quality of various accessories, breakthroughs can also be made in automotive panels, such as using sound insulation and vibration reduction materials. However, the existing automotive panels have relatively single functions, the vibration reduction performance of sound insulation panels is not good, and the sound insulation effect of vibration reduction panels is not good. Therefore, it is urgent to design an automotive panel that has vibration reduction, sound insulation, fire prevention, and antibacterial properties.

[0003] For example, the prior art publication number is CN212172133U, which is a rubber foam material automobile component. The utility model is provided with a rubber foam material automobile component composed of a rubber foam material, a first rubber layer, a first hydroxyl-containing straight-chain polyester resin layer, a second hydroxyl-containing straight-chain polyester resin layer, a heat insulation layer, a second rubber layer, a first melamine formaldehyde resin layer, a second melamine formaldehyde resin layer, an antibacterial layer, a fireproof layer, a first convex strip, a first groove, a second convex strip, a second groove, a bamboo charcoal fiber layer, an activated carbon fiber layer and silver ion sterilization particles, so that the automobile component has better sound insulation, buffering, shock resistance, heat insulation, fire prevention and antibacterial properties, thereby improving the comfort of use.

[0004] However, the above-mentioned prior art still has the following problems when used: the rubber foam material will produce gas when it expands due to heat, and the setting of the multi-layer material will cause the gas flow rate to be slow, which will further affect the expansion rate of the rubber foam material. In addition, the slow gas flow will cause the air pressure inside the component to be too high, which will affect the safety of the component when used. Based on this, the utility model provides a rubber foam soundproof material automotive component with fast ventilation speed. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a rubber foam soundproof material automobile component, which is formed by mixing a rubber foam layer and a foam aluminum layer into a foam soundproof layer. After the rubber foam layer and the foam aluminum layer are heated and expanded, they fill the space in the second rubber sleeve. The gas generated in the expansion process is ejected through four first air outlets and four second air outlets, which can not only accelerate the expansion speed of the foam soundproof layer, but also avoid excessive air pressure in the second rubber sleeve, thereby improving the safety of the component assembly, so as to solve the problems arising from the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rubber foam soundproof material automobile component, including a component assembly, the component assembly including a first rubber sleeve, a second rubber sleeve is fixedly arranged inside the first rubber sleeve, a first sound insulation felt and a first rock wool board distributed vertically are arranged between the bottom of the second rubber sleeve and the first rubber sleeve, an annular groove is provided on the top of the second rubber sleeve, a foam soundproof layer is provided in the annular groove, a second sound insulation felt and a second rock wool board distributed vertically are arranged on the top of the foam soundproof layer, and the second rock wool board and the second sound insulation felt are bonded to the annular groove, four first air outlets are provided on the outer wall of the second rubber sleeve, four second air outlets are provided on the outer wall of the first rubber sleeve, and the four second air outlets are respectively connected to the four first air outlets.

[0007] In a preferred embodiment, a filter is fixedly provided inside each second air outlet to block dust and debris in the external air.

[0008] In a preferred embodiment, a rubber pad is provided on the top of the second rubber sleeve, and the bottom of the rubber pad is bonded to the top of the second rubber sleeve by thermosetting adhesive to improve the connection firmness between the rubber pad and the second rubber sleeve.

[0009] In a preferred embodiment, a sealing rubber plate is provided on the top of the first rubber sleeve, and the bottom of the sealing rubber plate contacts the top of the rubber pad for sealing the first rubber sleeve.

[0010] In a preferred embodiment, a frame-shaped rubber strip is fixedly provided at the bottom of the sealing rubber plate, a frame-shaped slot is provided on the top surface of the first rubber sleeve, the frame-shaped rubber strip is inserted into the frame-shaped slot, and thermosetting adhesive liquid is stored in the frame-shaped slot, the frame-shaped rubber strip and the frame-shaped slot are fixedly bonded together by the thermosetting adhesive liquid, so as to improve the connection firmness between the sealing rubber plate and the first rubber sleeve.

[0011] In a preferred embodiment, the foamed soundproof layer extends into the four first air outlet holes, and the foamed soundproof layer is a mixed layer of a rubber foam layer and a foamed aluminum layer.

[0012] In a preferred embodiment, two front-to-back distributed positioning blocks are provided on both sides of the second sound insulation felt and the second rock wool board, and the four positioning blocks are fixedly connected to the second sound insulation felt and the second rock wool board. Two front-to-back distributed positioning grooves are provided on the inner wall surfaces on both sides of the annular groove, and the two positioning blocks are respectively arranged in the two positioning grooves. The positioning blocks cooperate with the positioning grooves to facilitate the installation of the second rubber sleeve.

[0013] Technical effects and advantages of the utility model:

[0014] 1. The utility model arranges a foam soundproof layer inside the second rubber sleeve. The foam soundproof layer is a mixed layer of a rubber foam layer and a foam aluminum layer. After the rubber foam layer and the foam aluminum layer are heated and expanded, they fill the space inside the second rubber sleeve. The gas generated during the expansion process is ejected through four first air outlets and four second air outlets, which can accelerate the expansion speed of the foam soundproof layer and avoid excessive air pressure in the second rubber sleeve, thereby improving the safety of the component assembly.

[0015] 2. The positioning block cooperates with the positioning groove to facilitate the quick installation of the second rubber sleeve and the first rubber sleeve, and a frame-shaped rubber strip is arranged at the bottom of the sealing rubber plate. When the sealing rubber plate fits with the top of the first rubber sleeve, the frame-shaped rubber strip is inserted into the frame-shaped slot and fixedly bonded to the frame-shaped slot by thermosetting glue, thereby greatly improving the firmness between the sealing rubber plate and the first rubber sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 It is a cross-sectional view of the overall structure of the utility model;

[0018] Figure 3 For this utility model Figure 2 Enlarged view of part A in the middle;

[0019] Figure 4 This is a bottom view of the sealing rubber plate of the utility model;

[0020] Figure 5 This is a cross-sectional view of the second rubber sleeve of the present invention.

[0021] The accompanying drawings are marked as follows: 1, component assembly; 2, first sound insulation felt; 3, first rock wool board; 4, annular groove; 5, foam soundproof layer; 6, second sound insulation felt; 7, second rock wool board; 8, first air outlet; 9, second air outlet; 10, filter screen; 11, rubber pad; 12, sealing rubber sheet; 13, frame-shaped rubber strip; 14, frame-shaped slot; 15, positioning block; 16, positioning groove;

[0022] 101. A first rubber sleeve; 102. A second rubber sleeve. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Refer to the instruction manual Figure 1-5 The utility model provides a rubber foam soundproof material automobile component, including a component assembly 1, the component assembly 1 includes a first rubber sleeve 101, a second rubber sleeve 102 is fixedly arranged inside the first rubber sleeve 101, a first sound insulation felt 2 and a first rock wool board 3 are arranged between the bottom of the second rubber sleeve 102 and the first rubber sleeve 101, an annular groove 4 is opened on the top of the second rubber sleeve 102, a foam soundproof layer 5 is arranged in the annular groove 4, a second sound insulation felt 6 and a second rock wool board 7 are arranged on the top of the foam soundproof layer 5, and the second rock wool board 7 and the second sound insulation felt 6 are bonded to the annular groove 4;

[0025] In addition, the outer wall of the second rubber sleeve 102 is provided with four first air outlet holes 8, the outer wall of the first rubber sleeve 101 is provided with four second air outlet holes 9, the four second air outlet holes 9 are respectively connected with the four first air outlet holes 8, each second air outlet hole 9 is fixedly provided with a filter screen 10 inside to block dust and debris in the outside air, the foam soundproof layer 5 extends into the four first air outlet holes 8, and the foam soundproof layer 5 is a mixed layer of a rubber foam layer and a foam aluminum layer;

[0026] Specifically, the rubber foam layer is a multi-layer composite material, which is made by adding additives to natural rubber and undergoing a foaming process. It has the advantages of sound insulation, high strength, insulation, vibration absorption, and heat preservation. Foamed aluminum is made by adding additives to pure aluminum or aluminum alloy and undergoing a foaming process. It has the characteristics of both metal and bubbles. It has the advantages of low density, high impact absorption, high temperature resistance, strong fire resistance, corrosion resistance, sound insulation, low thermal conductivity, and high electromagnetic shielding.

[0027] By arranging a foamed soundproof layer 5 inside the second rubber sleeve 102, the foamed soundproof layer 5 is a mixed layer of a rubber foam layer and a foamed aluminum layer. When the component 1 is heated at a high temperature, the rubber foam layer and the foamed aluminum layer are expanded by the high temperature and fill the space inside the second rubber sleeve 102. After the rubber foam layer and the foamed aluminum layer are expanded and solidified, the strength, soundproofing and fire resistance of the component 1 are improved. The gas generated by the rubber foam layer and the foamed aluminum layer during the expansion process is ejected through the four first air outlets 8 and the four second air outlets 9, thereby avoiding excessive air pressure in the second rubber sleeve 102. Filter nets 10 are arranged inside the four second air outlets 9, and the filter nets 10 are used to block dust and debris in the outside air, thereby avoiding dust and debris from polluting the inside of the second rubber sleeve 102.

[0028] Refer to the instruction manual Figure 1-5A rubber pad 11 is provided on the top of the second rubber sleeve 102, and the bottom of the rubber pad 11 is bonded to the top of the second rubber sleeve 102 by a thermosetting adhesive to improve the connection firmness between the rubber pad 11 and the second rubber sleeve 102. A sealing rubber plate 12 is provided on the top of the first rubber sleeve 101, and the bottom of the sealing rubber plate 12 is in contact with the top of the rubber pad 11 to seal the first rubber sleeve 101;

[0029] In addition, a frame-shaped rubber strip 13 is fixedly provided at the bottom of the sealing rubber plate 12, and a frame-shaped slot 14 is provided on the top surface of the first rubber sleeve 101. The frame-shaped rubber strip 13 is inserted into the frame-shaped slot 14, and a thermosetting adhesive liquid is stored in the frame-shaped slot 14. The frame-shaped rubber strip 13 and the frame-shaped slot 14 are fixedly bonded together by the thermosetting adhesive liquid, so as to improve the connection firmness between the sealing rubber plate 12 and the first rubber sleeve 101;

[0030] Moreover, two front-to-back distributed positioning blocks 15 are provided on both sides of the second sound insulation felt 6 and the second rock wool board 7, and the four positioning blocks 15 are fixedly connected to the second sound insulation felt 6 and the second rock wool board 7. Two front-to-back distributed positioning grooves 16 are provided on the inner wall surfaces on both sides of the annular groove 4, and the two positioning blocks 15 are respectively arranged in the two positioning grooves 16. With the help of the positioning blocks 15 and the positioning grooves 16, the second rubber sleeve 102 is easily installed.

[0031] By arranging a positioning block 15 on the outer wall of the second sound insulation felt 6 and the second rock wool board 7, and utilizing the positioning block 15 to cooperate with the positioning groove 16, it is convenient to quickly install the second sound insulation felt 6 and the second rock wool board 7 and the annular groove 4 together, and a frame-shaped rubber strip 13 is arranged at the bottom of the sealing rubber plate 12. When the sealing rubber plate 12 is fitted with the top of the first rubber sleeve 101, the frame-shaped rubber strip 13 is inserted into the frame-shaped slot 14 and fixedly bonded to the frame-shaped slot 14 by a thermosetting adhesive, thereby greatly improving the firmness between the sealing rubber plate 12 and the first rubber sleeve 101.

[0032] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A rubber foam soundproofing material automobile component, comprising a component assembly (1), characterized in that: The component assembly (1) comprises a first rubber sleeve (101), a second rubber sleeve (102) is fixedly arranged inside the first rubber sleeve (101), and a first sound insulation felt (2) and a first rock wool board (3) are arranged between the bottom of the second rubber sleeve (102) and the first rubber sleeve (101) and are arranged in an upper and lower arrangement; The second rubber sleeve (102) is provided with an annular groove (4) on the top, a foam soundproofing layer (5) is provided in the annular groove (4), a second soundproofing felt (6) and a second rock wool board (7) are provided on the top of the foam soundproofing layer (5) and are distributed up and down, and the second rock wool board (7) and the second soundproofing felt (6) are bonded to the annular groove (4), the second rubber sleeve (102) is provided with four first air outlet holes (8) on the outer wall, the first rubber sleeve (101) is provided with four second air outlet holes (9) on the outer wall, and the four second air outlet holes (9) are respectively connected to the four first air outlet holes (8).

2. The rubber foam soundproofing material automobile component according to claim 1, characterized in that: A filter screen (10) is fixedly arranged inside each second air outlet (9) to block dust and debris in the external air.

3. The rubber foam soundproofing material automobile component according to claim 1, characterized in that: A rubber pad (11) is provided on the top of the second rubber sleeve (102), and the bottom of the rubber pad (11) and the top of the second rubber sleeve (102) are bonded together by thermosetting adhesive.

4. The rubber foam soundproofing material automobile component according to claim 3, characterized in that: A sealing rubber plate (12) is provided on the top of the first rubber sleeve (101), and the bottom of the sealing rubber plate (12) is in contact with the top of the rubber pad (11) for sealing the first rubber sleeve (101).

5. The rubber foam soundproofing material automobile component according to claim 4, characterized in that: A frame-shaped rubber strip (13) is fixedly provided at the bottom of the sealing rubber plate (12); a frame-shaped slot (14) is provided on the top surface of the first rubber sleeve (101); the frame-shaped rubber strip (13) is inserted into the frame-shaped slot (14); and a thermosetting adhesive liquid is stored in the frame-shaped slot (14); the frame-shaped rubber strip (13) and the frame-shaped slot (14) are fixedly bonded together by the thermosetting adhesive liquid.

6. The rubber foam soundproofing material automobile component according to claim 1, characterized in that: The foamed soundproof layer (5) extends into the four first air outlet holes (8), and the foamed soundproof layer (5) is a mixed layer of a rubber foam layer and a foamed aluminum layer.

7. The rubber foam soundproofing material automobile component according to claim 1, characterized in that: Two front-to-back distributed positioning blocks (15) are provided on both sides of the second sound insulation felt (6) and the second rock wool board (7), and the four positioning blocks (15) are fixedly connected to the second sound insulation felt (6) and the second rock wool board (7). Two front-to-back distributed positioning grooves (16) are provided on the inner wall surfaces on both sides of the annular groove (4), and the two positioning blocks (15) are respectively arranged in the two positioning grooves (16).

Images