Sound insulation and noise reduction automobile sealing strip

Abstract

The sound insulation and noise reduction automobile sealing strip comprises a connecting assembly and a sound insulation assembly, the connecting assembly comprises an installation frame, the installation frame is in an inverted U shape, a framework is arranged in the installation frame, the framework is made of steel, and a plurality of rectangular through holes are formed in the framework; a plurality of sealing teeth are arranged on the two sides in the mounting frame and incline upwards from outside to inside, mounting strips are arranged on the side faces, away from each other, of the sealing teeth, the sections of the mounting strips are trapezoidal, thorn strips are arranged at the upper ends of the mounting strips, and glue liquid bags are arranged in the mounting frame and higher than the sealing teeth. Due to the fact that the thorn strip with the conical section is arranged, during installation, the sealing teeth are squeezed by the installation position of a vehicle body, the thorn strip punctures a glue solution bag, internal glue solution flows out and flows to the periphery of the vehicle body and the sealing teeth, installation firmness is greatly improved, and the glue solution bag is not prone to tilting and disengaging due to aging after being used for a long time.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive parts, and specifically refers to a sound-insulating and noise-reducing automotive sealing strip. Background Art

[0002] Automotive sealing strips have the function of filling various gaps and crevices between the components of the vehicle body, and have functions such as shock absorption, waterproofing, dustproofing, sound insulation, and decoration. Classified by the installation location, they can be divided into engine hood sealing strips, side window sealing strips, sunroof sealing strips, window guide sealing strips, inner and outer side strips, etc.

[0003] The most common problem with sealing strips in daily use is rubber aging, which not only causes the sealing strip to warp, but also affects the overall sealing performance, resulting in a decrease in the tightness of the connection with the vehicle body and an increase in noise. In addition, in the prior art, the sealing teeth that are tilted upward are generally used to achieve the extrusion contact with the vehicle body to avoid detachment. However, in actual applications, due to the long-term extrusion deformation, the connection between the sealing teeth and the vehicle body will become loose, affecting the overall sealing performance and sound-insulating and noise-reducing performance. Content of the Utility Model

[0004] The utility model aims to solve the technical problem in the prior art that the sealing strip in the prior art is prone to loosening after long-term use, affecting the sealing performance and sound insulation performance, and provides a sound-insulating and noise-reducing automotive sealing strip.

[0005] To solve the above technical problem, the technical solution provided by the utility model is: a sound-insulating and noise-reducing automotive sealing strip, including a connection component and a sound-insulating component. The connection component includes a mounting frame, the mounting frame is in an inverted U shape, a skeleton is arranged inside the mounting frame, the skeleton is made of steel, and a number of rectangular through holes are arranged on the skeleton in an array; a number of sealing teeth are arranged on both sides inside the mounting frame, the sealing teeth are all inclined upward from outside to inside, mounting strips are arranged on the sides of the sealing teeth away from each other, the cross-sections of the mounting strips are all trapezoidal, barbs are arranged at the upper ends of the mounting strips, and glue bags are arranged inside the mounting frame and above the sealing teeth;

[0006] The sound-insulating component includes a sealing member one arranged on the left side of the mounting frame. The sealing member one is in a hollow cylindrical structure, and a rubber partition is arranged in the middle. Sound-insulating cavities one are formed on both sides of the rubber partition inside the sealing member one; a sealing member two is arranged on the right side of the mounting frame, and a rubber bottom plate is arranged inside the sealing member two. A sound-insulating cavity two is formed between the rubber bottom plate and the sealing member two.

[0007] Further, multiple skeletons are connected by welding and arranged along the length direction of the mounting frame.

[0008] Further, the cross-section of the barb is conical.

[0009] Furthermore, the glue liquid bag is made of flexible plastic material; its shape is semi-cylindrical and is fixed to the inner side of the mounting bracket by an adhesive method.

[0010] Furthermore, convex strips are provided on both the upper and lower ends near the left side of the first seal, and the ends of the convex strips away from the first seal are inclined towards the mounting bracket.

[0011] Furthermore, the cross-section of the second seal is L-shaped, and the rubber bottom plate is located in the middle of the second seal.

[0012] The advantages of the present utility model compared with the prior art are as follows:

[0013] There are barbs with a conical cross-section. During installation, the sealing teeth are squeezed by the installation position of the vehicle body, so that the barbs pierce the glue liquid bag, and the internal glue liquid flows out and flows to the periphery of the vehicle body and the sealing teeth, greatly improving the installation firmness and being not easy to warp and come off due to aging after long-term use;

[0014] There are multiple sound insulation cavities to reduce conduction and improve the sound insulation and noise reduction ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a structural schematic diagram of the present utility model.

[0016] Figure 2 is the front view of the present utility model.

[0017] Figure 3 is the front view of the skeleton of the present utility model.

[0018] Figure 4 is the present utility model Figure 1 enlarged view of part A.

[0019] As shown in the figure: 1. Mounting bracket, 2. Skeleton, 3. Rectangular through hole, 4. Sealing teeth, 5. Mounting strip, 6. Barb, 7. Glue liquid bag, 8. First seal, 9. Rubber partition, 10. First sound insulation cavity, 11. Convex strip, 12. Second seal, 13. Rubber bottom plate, 14. Second sound insulation cavity. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following further describes the present utility model in detail with reference to the drawings.

[0021] Embodiment 1, in combination with the attached Figure 1 , 2 , a sound insulation and noise reduction automotive sealing strip, including a connection component and a sound insulation component. The connection component includes a mounting bracket 1, and the mounting bracket 1 is inverted U-shaped and conforms to the shape of the mounting part of the vehicle body;

[0022] In combination with the attached Figure 1 , 3, Inside the mounting bracket 1, there is a framework 2 made of steel, which supports the mounting bracket 1 and is also in an inverted U shape; several rectangular through-holes 3 are arranged on the framework 2, and multiple frameworks 2 are connected by welding and arranged along the length direction of the mounting bracket 1.

[0023] Combined with the attached Figure 1 , 2 , 4, On both sides inside the mounting bracket 1, several sealing teeth 4 are provided. The sealing teeth 4 are all inclined upward from outside to inside, which is convenient to push them open during installation; on the mutually distant sides of the sealing teeth 4, mounting strips 5 are provided. The cross-sections of the mounting strips 5 are all trapezoidal. The trapezoidal shape is stable and not easy to deform when stressed. At the upper ends of the mounting strips 5, thorn strips 6 are provided. The cross-section of the thorn strips 6 is conical. Inside the mounting bracket 1 and above the sealing teeth 4, glue bags 7 are provided; in practical applications, the thorn strips 6 are made of metal materials, which are convenient for piercing the glue bags 7, and because of their small volume, even metal materials will not pierce the body of the mounting bracket 1.

[0024] Combined with the attached Figure 1 , 2 , The glue bag 7 is made of flexible plastic material, which is convenient for piercing; its shape is semi-cylindrical and is fixed to the inner side of the mounting bracket 1 by an adhesive method.

[0025] Example two, combined with the attached Figure 1 , 2 , The sound insulation component includes a sealing member one 8 provided on the left side of the mounting bracket 1. The sealing member one 8 is in a hollow cylindrical structure, and a rubber partition 9 is provided in the middle. Sound insulation cavities one 10 are formed on both sides of the rubber partition 9 inside the sealing member one 8; a sealing member two 12 is provided on the right side of the mounting bracket 1. Inside the sealing member two 12, there is a rubber bottom plate 13. A sound insulation cavity two 14 is formed between the rubber bottom plate 13 and the sealing member two 12; the cavity structure can reduce conduction and play a good sound insulation role.

[0026] Combined with the attached Figure 1 , 2 , On the left side of the sealing member one 8 and near the upper and lower ends, convex strips 11 are provided. One end of the convex strips 11 away from the sealing member one 8 is inclined towards the mounting bracket 1, which can prevent the formation of an angle with the sealing member one 8, thus avoiding dust accumulation.

[0027] Combined with the attached Figure 1 , 2 , The cross-section of the sealing member two 12 is L-shaped, and the rubber bottom plate 13 is located in the middle of the sealing member two 12.

[0028] Working principle of the utility model: During use, the mounting bracket 1 is inserted into the mounting part of the vehicle body. The vehicle body squeezes several sealing teeth 4 inside the mounting bracket 1, causing them to deform upward and outward. As a result, the barbs 6 on the mounting strip 5 will squeeze and puncture the glue liquid bag 7, allowing the glue liquid to flow to the periphery of the vehicle body and the sealing teeth 4, greatly improving the mounting firmness and making it not easy to come off due to aging after long-term use. Sound insulation cavities I 10 and sound insulation cavities II 14 are provided inside the seal I 8 and the seal II 12, which can reduce conduction and play a role in sound insulation. The convex strips 11 are inclined towards the mounting bracket 1, which can avoid forming an angle with the seal I 8, thus preventing dust accumulation.

[0029] The above describes the present utility model and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and, without departing from the creative concept of the present utility model, design similar structural manners and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present utility model.

Claims

1. A sound insulation and noise reduction automobile sealing strip, characterized by: The invention comprises a connection component and a sound insulation component, wherein the connection component comprises a mounting frame (1), the mounting frame (1) is in an inverted U shape, a frame (2) is provided inside the mounting frame (1), the frame (2) is made of steel, and a plurality of rectangular through holes (3) are arranged on the frame (2); a plurality of sealing teeth (4) are provided on both sides inside the mounting frame (1), the sealing teeth (4) are inclined upward from the outside to the inside, and the sides of the sealing teeth (4) away from each other are provided with mounting strips (5), the cross-section of the mounting strips (5) is a trapezoid, and the upper end of the mounting strips (5) is provided with a barbed strip (6); and a glue bag (7) is provided inside the mounting frame (1) and above the sealing teeth (4); The sound insulation component comprises a seal member 1 (8) provided on the left side of the mounting frame (1), the seal member 1 (8) being a hollow cylindrical structure, a rubber partition plate (9) being provided at the middle end, a sound insulation cavity 1 (10) being formed inside the seal member 1 (8) and on both sides of the rubber partition plate (9); a seal member 2 (12) being provided on the right side of the mounting frame (1), a rubber bottom plate (13) being provided inside the seal member 2 (12), and a sound insulation cavity 2 (14) being formed between the rubber bottom plate (13) and the seal member 2 (12).

2. The sound insulation and noise reduction automobile sealing strip according to claim 1, characterized in that: The plurality of frames (2) are connected by welding and are arranged along the length direction of the mounting frame (1).

3. The sound insulation and noise reduction automobile sealing strip according to claim 1, characterized in that: The cross section of the thorn strip (6) is conical.

4. The sound insulation and noise reduction automobile sealing strip according to claim 1, characterized in that: The glue bag (7) is made of flexible plastic material; it is semi-cylindrical in shape and is fixed to the inner side surface of the mounting frame (1) by gluing.

5. The sound insulation and noise reduction automobile sealing strip according to claim 1, characterized in that: A convex strip (11) is provided on the left side of the sealing member 1 (8) and near the upper and lower ends, and the end of the convex strip (11) away from the sealing member 1 (8) is inclined toward the mounting frame (1).

6. The sound insulation and noise reduction automobile sealing strip according to claim 1, characterized in that: The cross section of the second sealing member (12) is L-shaped, and the rubber bottom plate (13) is located at the middle end of the second sealing member (12).

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