Novel self-tapping drill assembling bolt
A combination bolt, a new type of technology, applied in the directions of screws, repair drills, drilling tool accessories, etc., can solve problems such as poor adaptability, achieve high firmness and stability, improve adaptability, and reduce waste of resources.
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Example Embodiment
[0032] Example 1
[0033] Such as Figure 1~2 As shown, the present invention is a new type of self-tapping drill combination bolt, including a fixing bolt 1 and a tapping rod body 2. The tapping rod body 2 includes an integrally formed tap screw tapping section 2-1 and a drill rod drilling section 2 -2, the fixing bolt 1 includes a screw 1-1, one end of the screw 1-1 is assembled and connected with the free end of the tap screw tapping section 2-1 on the tapping rod body 2, and the other end of the screw 1-1 is fixed A hexagonal nut 1-2 and a first connecting head 1-3 extending along the length of the screw 1-1 are provided; the end of the first connecting head 1-3 is set to a polygonal prism structure adapted to the drilling equipment, Alternatively, the free end surface of the first connector 1-3 is provided with a third mounting slot 1-3-1 adapted to the drilling equipment; the outer surface of the fixing bolt 1 is provided with a tap screw tap. The thread segment 2-1 taps ...
Example Embodiment
[0038] Example 2
[0039] Such as image 3 As shown, the present invention is a new type of self-tapping drill combination bolt. The difference from embodiment 1 is that the end surface of the assembled connection end of the screw 1-1 and the tap screw tapping section 2-1 is provided with a first Mounting slot 1-1-1, the free end of the tap screw tapping section 2-1 is provided with a third connector 2-4 that is adapted to the first mounting slot 1-1-1, so The cross-sections of the first mounting slot 1-1-1 and the third connector 2-4 are both polygonal, and the fixing bolt 1 is tapped with the tap screw through the first mounting slot 1-1-1. The third connector 2-4 on the segment 2-1 is fitted and connected.
[0040] As a further preference, the cross-sections of the first mounting slot 1-1-1 and the third connecting head 2-4 are both hexagonal structures.
Example Embodiment
[0041] Example 3
[0042] Such as Figure 4 As shown, the present invention is a new type of self-tapping drill combination bolt. The difference from Embodiment 1 is that the screw 1-1 and the tap screw tapping section 2-1 are assembled and connected at one end with a second connecting head 1-4, the free end surface of the tap screw tapping section 2-1 is provided with a second mounting slot 2-5 that is adapted to the second connector 1-4, and the second connector 1 -4 and the second mounting slot 2-5 are both polygonal in cross section, the fixing bolt 1 passes through the second connecting head 1-4 and the second mounting slot on the tap screw tapping section 2-1 2-5 Mating connection.
[0043] Preferably, the free end of the tap screw tapping section 2-1 is further provided with an internally threaded mounting slot 2-6 through which the upper port and the bottom of the second mounting slot 2-5 coaxially penetrate, and the second mounting The minimum inner diameter of the slot ...
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