Expansion bolt kit and using method thereof
A technology of expansion bolts and expansion sleeves, which is applied in the field of expansion bolt kits, can solve the problems of laborious opening of expansion blocks on top of the hemispherical head, difficulty in taking out the sleeve replacement, and difficult installation steps, etc., achieving low cost, simple structure, and easy installation Effect
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Embodiment 1
[0038] Such as figure 1 , Figure 4 , Figure 6 and Figure 7 As shown, an expansion bolt kit includes a bolt 1 and an expansion sleeve 2, the bolt 1 is socketed with the expansion sleeve 2, and one end of the expansion sleeve is provided with an expansion part 24, and the expansion part 24 is provided with a longitudinal slit 21. The slits 21 are evenly distributed along the circumference of the expansion part, and the expansion part is divided into expansion blocks capable of expanding outward; the bolt 1 includes a screw rod and a bolt head 11, and the screw rod includes a polished rod part 26 near one end of the bolt head and is arranged on the other end of the polished rod part. The threaded part 25, the outer wall of the polished rod part 26 is smooth, and the outer wall of the threaded part 25 is provided with an external thread 14; the expansion sleeve includes two matched half-pipes, each half-pipe includes upper and lower parts, and the half-pipes pass through the ...
Embodiment 2
[0050] Such as figure 2 , image 3 and Figure 6 As shown, an expansion bolt kit includes a bolt 1 and an expansion sleeve 2, the bolt 1 and the expansion sleeve 2 are socketed, one end of the expansion sleeve 2 is provided with an expansion part 24, and the expansion part 24 is provided with a longitudinal cut 21 , the longitudinal slits 21 are evenly distributed along the circumference of the expansion part 24, and the expansion part 24 is divided into expansion blocks capable of expanding outward; the bolt 1 includes a screw rod and a bolt head 11, and the screw rod includes a polished rod part 26 near one end of the bolt head 11 and a set On the threaded portion 25 at the other end of the polished rod portion 26, the outer wall of the polished rod portion 26 is smooth, and the outer wall of the threaded portion 25 is provided with external threads 14, and the outer diameter of the threaded portion 25 is greater than the outer diameter of the polished rod portion 26; the ...
Embodiment 3
[0074] Such as Figure 8 As shown in the figure below, the basic structure is the same as that of Example 1, the only difference is that the outer diameter of the expansion part is equal to the outer diameter of the expansion sleeve wrapped by the sleeve, and the inner diameter of the conical hole changes from large to small along the screwing direction of the bolt. , the bolts are screwed in to make the expansion part expand and fasten on the plank. And because the threads of the threaded portion are fitted with the internal threads of the expansion sleeve, only the bolts need to be unscrewed during disassembly, and the expansion sleeve can also be pulled out simultaneously by pulling out the screw rod. The utility model has the advantages of simple structure, simple process, material saving, convenient disassembly and installation, and good connection and fastening effect.
[0075] The present invention can be expanded into products with different apertures and different le...
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