Bottom reaming device for roadway anchor hole
An anchoring hole and hole bottom technology, which is used in the installation of anchor rods, drilling equipment and methods, drilling equipment, etc., can solve problems such as bond surface damage and anchoring system failure, so as to reduce support costs and reduce the cost of anchor rods. The effect of row spacing and improving construction speed
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[0022] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings and examples. The following examples are only used to illustrate the technical solutions of the present invention more clearly, but not to limit the protection scope of the present invention.
[0023] Such as Figure 1-7 As shown, it is a structural schematic diagram of an embodiment of the present invention. The bottom reaming device of the anchor hole of the present invention includes: a drilling tool top cap 1, a cylindrical pin 2, a support connecting rod 3, a connecting rod spring pin 4, and a rotary blade 5 , blade connection spring pin 6, push rod 7, blade support sleeve 8, spring 9, drill handle 10 and bayonet pin 11, the first end of described push rod 7 is provided with a plurality of rotating blades 5, and described rotating blade 5 One end of one end is connected with the push rod 7 through the support connecting rod 3, and the d...
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