Dust cover device for polished rod wiring device
A cable arrangement and dust cover technology, which is applied to the sealing of the engine, engine components, mechanical equipment, etc., can solve the problems that affect the quality of the cable arrangement of the polished rod cable arrangement, the internal bearing wears too fast, and there is no dustproof measure. To achieve good dustproof effect, easy installation and operation, economical and practical effect
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[0011] See figure 1 , The rubber sealing ring 3 is installed in the hole of the nylon shell 1, and the hole is used to prevent off the limit with the circlip 4, and the annular felt pad 2 is installed in the annular groove of the nylon shell 1. See figure 2 , Nylon housing 1 is processed with U-shaped grooves at the upper and lower symmetrical positions.
[0012] See image 3 , a schematic diagram of the application of a dust cover device for a polished rod cable arrangement. Open the upper and lower case covers of the polished rod cable arranging device 5 casings, and the present invention is clamped in the middle hole of the polished rod cable arranging device 5 upper and lower case covers. The groove size on the nylon shell 1 is 1mm larger than the thickness of the upper and lower case covers of the polished rod cable arrangement 5, and the protruding part of the rubber sealing ring 3 is greater than 1mm, and is close to the outside of the polished rod cable arrangement...
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