A kind of automobile door headway sealing strip

Abstract

The invention discloses a vehicle door primary sealing strip which comprises a sealing part and a fixing part. The sealing part is a sponge bubble pipe. The fixing part comprises a PVC rubber base anda modified ethylene propylene rubber base body. The modified ethylene propylene rubber base body and the sponge bubble pipe are of an integral extruded type structure. The PVC rubber base is of an inverted U-type structure. Installing teeth are arranged on the inner side face of a U-type groove. The modified ethylene propylene rubber base body is arranged outside the PVC rubber base. The sponge bubble pipe is arranged on the left side of the modified ethylene propylene rubber base body. A cavity is formed in the sponge bubble pipe. A connecting belt is arranged on the left side of the cavity.An adjusting strip is arranged in the connecting belt. A protruding lug is arranged outside the sponge bubble pipe. The sponge bubble pipe, the adjusting strip, the connecting belt and the protrudinglug are of an integrated structure. The vehicle door primary sealing strip is low in manufacturing cost, reasonable in structural design, good in use performance and long in service life.

Description

technical field [0001] The invention relates to a rubber sealing product, in particular to a door head seal strip for automobiles. Background technique [0002] Automobile seals include sealing strips, automobile door frames, glass run channels and other components. Among them, the automobile door frame sealing strip is one of the most important sealing strips in the automobile sealing strip products. On the edge of the door, seal the gap between the door and the door frame, isolate the noise outside the car, prevent water, dust, etc. from penetrating into the car, and maintain ride comfort. When the car is driving in windy and rainy weather, the car The door frame sealing strip also plays the role of reducing wind and rain noise in the car. In addition, the car door frame sealing strip also plays the role of making up for the errors in sheet metal manufacturing and assembly, and at the same time plays a role of decoration. The two states are closed, so the seal is a dynam...

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Problems solved by technology

[0003] The existing door sealing strip needs to be stuck into the corresponding position during the installation process, and the depth of the locking needs to be controlled by the worker's operating proficiency. After the door is opened and closed for the first time, there will be problems of detachment or difficulty in opening and closing the door. The sponge tube part of the sealing strip will be squeezed many times. Although the rubber product is an elastic material, the unreasonable structure of the sealing strip will cause a large The service life of the sealing strip will be shortened, and the sealing strip will be deformed greatly, which will affect its sealing degree. In addition, there will be different degrees of error in the production process of the door sealing strip. The size of the U-shaped groove There will be slight differences, and the surface state will also be different during the rubber extrusion process, resulting in differences in the insertion and extraction force during the installation of the door head seal, which will adversely affect the installation of the door head seal

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