A kind of dust cover for coupler device and preparation method thereof
A technology of dust cover and coupler, applied in the field of dust cover, can solve problems such as decoupling accident and shorten the service life of coupler, and achieve the effects of reducing frictional resistance, improving chemical stability and low friction coefficient
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Embodiment 1
[0030] This embodiment provides a dust cover for a coupler device, including a dust cover body 1, see figure 1 A lip 6 is opened in the middle of one side of the dust cover body 1 , and mounting holes 4 for fixing the dust cover body 1 to the vehicle body are opened at the four corners of the dust cover body 1 .
[0031] A bowl-shaped groove 2 is formed on the left end of the upper end surface of the dust cover body 1, and a circular groove 3 is formed on the right end of the lower end surface of the dust cover body 1. Refer to figure 1 , the circular groove 3 and the bowl-shaped groove 2 are located on the same horizontal line. A circular groove 3 2 and an oval groove 3 are also provided in the middle of the upper end surface of the dust cover body 1 . The diameter of the circular groove 3 2 is smaller than the diameter of the circular groove 3 .
[0032] The lower end face of the dust cover body 1 is provided with four rectangular grooves. The four rectangular grooves are r...
Embodiment 2
[0041] This embodiment provides a dust cover for a coupler device, including a dust cover body 1, see figure 1 A lip 6 is opened in the middle of one side of the dust cover body 1 , and mounting holes 4 for fixing the dust cover body 1 to the vehicle body are opened at the four corners of the dust cover body 1 .
[0042] A bowl-shaped groove 2 is formed on the left end of the upper end surface of the dust cover body 1, and a circular groove 3 is formed on the right end of the lower end surface of the dust cover body 1. Refer to figure 1 , the circular groove 3 and the bowl-shaped groove 2 are located on the same horizontal line. A circular groove 3 2 and an oval groove 3 are also provided in the middle of the upper end surface of the dust cover body 1 . The diameter of the circular groove 3 2 is smaller than the diameter of the circular groove 3 .
[0043] The lower end face of the dust cover body 1 is provided with four rectangular grooves. The four rectangular grooves are res...
Embodiment 3
[0052] This embodiment provides a dust cover for a coupler device, including a dust cover body 1, see figure 1 A lip 6 is opened in the middle of one side of the dust cover body 1 , and mounting holes 4 for fixing the dust cover body 1 to the vehicle body are opened at the four corners of the dust cover body 1 .
[0053] A bowl-shaped groove 2 is formed on the left end of the upper end surface of the dust cover body 1, and a circular groove 3 is formed on the right end of the lower end surface of the dust cover body 1. Refer to figure 1 , the circular groove 3 and the bowl-shaped groove 2 are located on the same horizontal line. A circular groove 3 2 and an oval groove 3 are also provided in the middle of the upper end surface of the dust cover body 1 . The diameter of the circular groove 3 2 is smaller than the diameter of the circular groove 3 .
[0054] The lower end face of the dust cover body 1 is provided with four rectangular grooves. The four rectangular grooves are r...
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