Rolling coating brush for wall
A technology of rolling brushes and walls, applied in the field of tools, can solve the problems of high manufacturing cost, uneconomical, and affecting the use effect, and achieve the effect of simple manufacturing, reasonable structure, flexible and convenient operation
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[0015] As shown in Figures 1 and 2, a wall roller brush, including a handle 1, an outer tube 3, an inner tube 9, and a roller brush head part 4, is characterized in that: one end of the outer tube 3 and a limit ring 2 sets The other end is connected to the three-way valve 5, the outer pipe 3 is equipped with a piston 8, the piston 8 is equipped with two O-rings 7, the piston 8 is connected to the inner pipe 9 at the same time, and the other end of the inner pipe 9 is connected to the handle 1 , pull the handle 1, the piston 8 can slide in the outer tube 3. Such as image 3 , 4 As shown, a flow regulating valve 16 is installed on one branch of the three-way valve 5, with a spherical washer 18 on one side and a regulating valve handle 6 on the other side. The seal between the three-way valves prevents the paint from seeping out. The end of the branch is connected with the brush head part 4; a one-way valve core 13 and a spring 14 are installed at the outlet of the inclined bran...
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