Grouting pipe bit for road construction
A technology for road construction and grouting pipes, applied in drill bits, drilling tools, drilling equipment, etc., can solve problems such as channel blockage and non-flow, and achieve the effect of avoiding blockage
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[0015] The following is further described in detail through specific implementation methods:
[0016] The reference signs in the drawings of the description include: drill body 1, first cavity 2, high-pressure flow channel 3, first return flow channel 4, second return flow channel 5, guide hole 6, sealing cover 7, auxiliary grouting Hole 8, closed valve head 9, valve seat 10, T-shaped through hole 11, liquid inlet pipe 12, second connecting rod 13, limit block 14, second stopper 15, first spring 17, first pressure valve 18 , the second pressure valve 19, the first connecting rod 20, the high-pressure nozzle 21, the second spring 22, the drain hole 23, the drill tip 24, the first block 25, the second cavity 26, the spool 27, the liquid hole 28.
[0017] The embodiment is basically as attached figure 1 , 2 Shown: a grouting pipe drill bit for road construction, including a drill body 1, a first cavity 2 is provided in the drill body 1, and a high-pressure flow channel 3 commu...
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