Screw rod of check bolt
A technology for preventing loosening of bolts and screws, applied in the directions of bolts, screws, nuts, etc., can solve problems such as affecting the working performance and stability of mechanical equipment, poor bolt tightening effect, and bolts coming out of threaded holes, and achieve reasonable screw structure settings. , Wide range of use, the effect of increasing friction
Inactive Publication Date: 2018-04-06
NINGBO JINDING FASTENING PIECE
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Problems solved by technology
When the mechanical equipment is running, mechanical vibration will inevitably occur. Long-term mechanical vibration will cause the bolt to shake, resulting in thread wear, making the fastening effect of the bolt worse, affecting the
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[0017] see Figure 1-3 , the present invention provides a technical solution: a screw for anti-loosening bolts, including a screw body 1, the upper end of the screw body 1 is provided with a nut connection part 11, and the middle part of the upper end surface of the screw body 1 is longitudinally provided with an adjustment hole 12, The upper end of the screw body 1 is symmetrically provided with two upper anti-loosening device installation holes 13 communicating with the adjustment hole 12, and the lower end of the screw body 1 is symmetrically provided with two lower anti-loosening device installation holes 14 communicated with the adjustment hole 12. Each upper anti-loosening device mounting hole 13 and the lower anti-loosening device mounting hole 14 are provided with an anti-loosening device. One end is welded and fixed with the connection block 4, and the other end of the back-moving spring 3 is welded and fixed with the limit block 2. The connection block 4 is arranged ...
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The invention discloses a screw rod of a check bolt. The screw rod comprises a screw rod body, a nut connection part is arranged at the upper end of the screw rod body, an adjusting hole is longitudinally formed in the middle of the upper end face of the screw rod body, two upper anti-loose device mounting holes communicating with the adjusting hole are symmetrically formed in the upper end of thescrew rod body, and two lower anti-loose device mounting holes communicating with the adjusting hole are symmetrically formed in the lower end of the screw rod body. An anti-loose device is arrangedin each of upper anti-loose device mounting holes and lower anti-loose device mounting holes, and each anti-loose device comprises a limiting block, a reset spring and a connection block. One ends ofthe reset springs are fixed to the connection blocks in a welded mode, the other ends of the reset springs are fixed to the limiting blocks in a welded mode, the connection blocks are arranged to be close to the adjusting hole, and the parts, facing the adjusting hole, of the connection blocks are of arc-shaped structures. The limiting blocks are arranged to be close to the outer wall face of thescrew rod body, and limiting bulges are integrally arranged at one ends, away from the reset springs, of the limiting blocks.
Description
technical field [0001] The invention relates to the technical field of fasteners, in particular to a screw rod of an anti-loosening bolt. Background technique [0002] A bolt is a type of fastener consisting of a bolt head and a screw rod (a cylinder with external threads), which is used to fasten two mechanical parts with through holes. If the bolt is unscrewed, the two parts can be separated, so the bolt connection is a detachable connection, which is widely used to connect the workbench and the side plate. When the mechanical equipment is running, mechanical vibration will inevitably occur. Long-term mechanical vibration will cause the bolts to shake, resulting in thread wear, making the fastening effect of the bolts worse, affecting the working performance and stability of the mechanical equipment, and bolts may come out The phenomenon of threaded holes has potential safety hazards, especially some automobiles and vehicles directly or indirectly threaten human life. C...
Claims
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Login to View More IPC IPC(8): F16B35/00F16B39/28
CPCF16B35/00F16B39/28
Inventor 张永良李华沈健狄
Owner NINGBO JINDING FASTENING PIECE