Sound-absorbing cotton for automobile door

Abstract

The utility model discloses sound-absorbing cotton for an automobile door, which comprises a sound-absorbing cotton main body, a clamping part, a middle connecting part and a buckle, the middle connecting part is positioned between the sound-absorbing cotton main body and the clamping part, the middle connecting part is respectively fixed with the sound-absorbing cotton main body and the clamping part, the middle connecting part is provided with a first abdicating hole and a first mounting hole, and the first abdicating hole is communicated with the first mounting hole. One end of the buckle penetrates through the first installation hole and enters the first receding hole, and the other end of the buckle is a free end buckled with an assembly hole formed in the vehicle door. Reliability of connection between the automobile door corner connecting device and the automobile door corner is guaranteed.

Description

Technical Field

[0001] The utility model relates to automotive door components, in particular to a sound-absorbing cotton for automotive doors. Background Art

[0002] With the rapid development of the vehicle industry and the improvement of people's living standards, there are high requirements for all-round vehicle performance. The comfort of the vehicle is an aspect that customers focus on, and the sound insulation effect of the vehicle is an important factor in measuring the comfort of the vehicle. When the vehicle is running, the noise caused by road excitation is the main source of in-vehicle noise. To solve this problem, vehicle manufacturers will take measures in many aspects to reduce the in-vehicle noise. For example, tires with low tire noise are used, and sound-absorbing components that can absorb noise are used. Usually, the sound-absorbing cotton is installed on the door, which can not only reduce the noise but also play a sealing role.

[0003] The existing sound-absorbing cotton includes a sound-absorbing cotton main body and a clamping portion installed on the sound-absorbing cotton main body. The clamping portion is usually in a T shape, and a T-shaped groove is provided on the door. The clamping portion is snapped into the T-shaped groove. When in use, the sound-absorbing cotton main body deforms under the extrusion of the door and the vehicle frame, forming a seal for the carriage.

[0004] For the sound-absorbing cotton with the above structure, during long-term use, due to the extrusion force and the effects of thermal expansion and contraction, the sound-absorbing cotton will become loose, and at the key connection part between the sound-absorbing cotton and the door, the connection part at the corner of the sound-absorbing cotton and the door will fall off, so the sound-absorbing cotton needs to be replaced. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a sound-absorbing cotton for automotive doors, and the reliability of the connection between the utility model and the door corner is ensured.

[0006] The technical solution to solve the above technical problems is as follows:

[0007] The sound-absorbing cotton for automotive doors includes a sound-absorbing cotton main body and a clamping portion, and also includes an intermediate connecting portion and a buckle. The intermediate connecting portion is located between the sound-absorbing cotton main body and the clamping portion. The intermediate connecting portion is respectively fixed to the sound-absorbing cotton main body and the clamping portion. The intermediate connecting portion is provided with a first relief hole and a first mounting hole. One end of the buckle passes through the first mounting hole and enters the first relief hole, and the other end of the buckle is a free end that is buckled with an assembly hole provided on the door.

[0008] Furthermore, it also includes a supporting portion. The supporting portion is fixed to the intermediate connecting portion, and the buckle is located between the clamping portion and the supporting portion.

[0009] Furthermore, the sound-absorbing cotton main body includes a foam layer and a fiber sound-absorbing layer. The foam layer has at least two layers, and the foam layers are respectively fixed on both sides of the fiber sound-absorbing layer.

[0010] Furthermore, exhaust holes are provided on the main body of the sound-absorbing cotton.

[0011] Furthermore, the buckle includes a rod-shaped component, a first clamping component, a second clamping component, and a spring buckle. The first clamping component and the second clamping component are respectively fixed to the rod-shaped component. There are multiple spring buckles, one ends of these spring buckles are respectively fixed to the rod-shaped component, and the other ends of the spring buckles are free ends.

[0012] Furthermore, the buckle further includes a cushion pad. The cushion pad surrounds the spring buckle, the cushion pad is fixed to the rod-shaped component, and the cushion pad is located on one side of the second clamping component.

[0013] In the present utility model, since the sound-absorbing cotton is squeezed when the door is closed, and the middle connecting portion is also subjected to corresponding pressure, therefore, providing the first relief hole is beneficial to deforming the middle connecting portion without being damaged. After inserting the buckle into the assembly hole on the vehicle door, the buckle and the assembly hole form a snap connection. Therefore, the sound-absorbing cotton can be firmly fixed on the vehicle door through the buckle, thereby avoiding the sound-absorbing cotton from falling off. Description of the Drawings

[0014] Figure 1 It is the front view of the sound-absorbing cotton for vehicle doors.

[0015] Figure 2 It is the sectional view of the sound-absorbing cotton for vehicle doors.

[0016] Figure 3 It is the structural diagram of the main body of the sound-absorbing cotton.

[0017] Figure 4 It is the three-dimensional view of the buckle.

[0018] Marks in the drawings:

[0019] Main body of the sound-absorbing cotton 1, foam layer 1a, fiber sound-absorbing layer 1b, exhaust hole 1c, clamping portion 2, middle connecting portion 3, first relief hole 3a, first mounting hole 3b, buckle 4, rod-shaped component 4a, first clamping component 4b, second clamping component 4c, spring buckle 4d, cushion pad 4e, supporting portion 5. Detailed Description of the Invention

[0020] The present utility model will be further described in detail below in conjunction with the drawings and the specific embodiments.

[0021] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0022] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0023] In the present utility model, unless otherwise clearly specified and defined, the terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0025] As Figures 1 to 4 shown, the sound-absorbing cotton for an automobile door of the present utility model includes a sound-absorbing cotton main body 1, a clamping portion 2, an intermediate connecting portion 3, and a buckle 4. The following will respectively elaborate on each part and the relationship between them in detail.

[0026] The sound-absorbing cotton main body 1 is annular. Therefore, the sound-absorbing cotton main body 1 is prone to deformation when under pressure. The sound-absorbing cotton main body 1 includes a foam layer 1a and a fiber sound-absorbing layer 1b. The foam layer 1a has at least two layers, and the foam layers 1a are respectively fixed on both sides of the fiber sound-absorbing layer 1b. The thickness of the fiber sound-absorbing layer 1b is thinner than that of the foam layer 1a. For example, the thickness of the fiber sound-absorbing layer 1b is 2 - 3 mm, and the thickness of the foam layer 1a is less than 2 mm. The sound-absorbing cotton main body 1 is provided with exhaust holes 1c. When the sound-absorbing cotton main body 1 is squeezed, the air inside the sound-absorbing cotton main body 1 can be discharged through the exhaust holes 1c, so as to facilitate the deformation of the sound-absorbing cotton main body 1.

[0027] The material of the fiber sound-absorbing layer 1b is artificial inorganic fiber. The artificial inorganic fiber is made of natural ores such as quartz sand, limestone, dolomite and soda ash, borax, and some chemical raw materials such as soda ash, borax are melted into glass. In the molten state, it is blown or spun into flocculent fine fibers by external force. The fibers are three-dimensionally crossed and wound around each other, presenting many small gaps. The fiber sound-absorbing layer 1b formed in this state has the characteristics of high sound absorption rate, good sound insulation effect, etc., playing the role of noise reduction and sound insulation, and having good waterproof, moisture-proof and air permeability performance, and being extremely easy to process.

[0028] The middle connecting part 3 is located between the sound-absorbing cotton main body 1 and the clamping part 2. The middle connecting part 3 is respectively fixed to the sound-absorbing cotton main body 1 and the clamping part 2. The materials of the clamping part 2, the middle connecting part 3, and the buckle 4 are the same as that of the sound-absorbing cotton main body 1. The middle connecting part 3 is provided with a first relief hole 3a and a first mounting hole 3b. One end of the buckle 4 passes through the first mounting hole 3b and enters the first relief hole 3a, and the other end of the buckle 4 is a free end for buckling with the assembly hole provided on the car door.

[0029] Since the sound-absorbing cotton will be squeezed when the door is closed, and the middle connecting part 3 will also be subjected to corresponding pressure, therefore, setting the first relief hole 3a is beneficial to the deformation of the middle connecting part 3 without being damaged. After the buckle 4 is inserted into the assembly hole on the car door, the buckle 4 forms a buckle connection with the assembly hole. Therefore, the sound-absorbing cotton can be firmly fixed on the car door through the buckle 4, so as to avoid the sound-absorbing cotton from falling off.

[0030] The buckle 4 includes a rod-shaped component 4a, a first clamping component 4b, a second clamping component 4c, and a spring buckle 4d. The first clamping component 4b and the second clamping component 4c are respectively fixed to the rod-shaped component 4a. There are multiple spring buckles 4d, and one ends of these spring buckles 4d are respectively fixed to the rod-shaped component 4a, and the other ends of the spring buckles 4d are free ends. The outer surface of the spring buckle 4d is provided with convex teeth. When the buckle 4 is inserted into the assembly hole on the car door, after the spring buckle 4d is squeezed and deformed, the convex teeth form a buckle connection with the step in the assembly hole.

[0031] The material of the buckle 4 is generally plastic. Therefore, the hardness of the buckle 4 is higher than that of the middle connecting part 3. To avoid damage to the middle connecting part 3 and the clamping part 2, the buckle 4 further includes a cushion 4e. The cushion 4e surrounds the spring buckle 4d, the cushion 4e is fixed to the rod-shaped member 4a, and the cushion 4e is located on one side of the second clamping member 4c. The cushion 4e isolates the spring buckle 4d from the middle connecting part 3 and the clamping part 2, preventing the spring buckle 4d from touching the middle connecting part 3 and the clamping part 2.

[0032] It further includes a support part 5. The support part 5 is fixed to the middle connecting part 3, and the buckle 4 is located between the clamping part 2 and the support part 5. Through the supporting action of the support part 5, the sound-absorbing cotton can be further better fitted with the assembly groove on the car door, and at the same time, the sound-absorbing cotton can be more stable after being installed on the car door.

Claims

1. Sound-absorbing cotton for automobile doors, comprising a sound-absorbing cotton main body (1) and a clamping part (2), characterized in that, It further includes an intermediate connecting part (3) and a buckle (4). The intermediate connecting part (3) is located between the sound-absorbing cotton main body (1) and the clamping part (2). The intermediate connecting part (3) is fixed to the sound-absorbing cotton main body (1) and the clamping part (2) respectively. The intermediate connecting part (3) is provided with a first relief hole (3a) and a first mounting hole (3b). One end of the buckle (4) passes through the first mounting hole (3b) and enters the first relief hole (3a). The other end of the buckle (4) is a free end that is buckled to the assembly hole provided on the vehicle door.

2. The sound-absorbing cotton for automobile doors according to claim 1, characterized in that, It further includes a support part (5). The support part (5) is fixed to the intermediate connecting part (3). The buckle (4) is located between the clamping part (2) and the support part (5).

3. The sound-absorbing cotton for automobile doors according to claim 1, characterized in that, The sound-absorbing cotton main body (1) includes a foam layer (1a) and a fiber sound-absorbing layer (1b). The foam layer (1a) has at least two layers, and the foam layers (1a) are respectively fixed on both sides of the fiber sound-absorbing layer (1b).

4. The sound-absorbing cotton for automobile doors according to claim 1, characterized in that, The sound-absorbing cotton main body (1) is provided with exhaust holes (1c).

5. The sound-absorbing cotton for automobile doors according to claim 1, wherein The buckle (4) includes a rod-shaped member (4a), a first clamping member (4b), a second clamping member (4c), and a spring buckle (4d). The first clamping member (4b) and the second clamping member (4c) are respectively fixed to the rod-shaped member (4a). There are multiple spring buckles (4d). One ends of these spring buckles (4d) are respectively fixed to the rod-shaped member (4a), and the other ends of the spring buckles (4d) are free ends.

6. The sound-absorbing cotton for automobile doors according to claim 5, characterized in that, The buckle (4) further includes a cushion (4e). The cushion (4e) surrounds the spring buckle (4d). The cushion (4e) is fixed to the rod-shaped member (4a). The cushion (4e) is located on one side of the second clamping member (4c).

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