Pushing-needle type anti-theft nut
An anti-theft nut and pin technology, applied in the direction of nuts, screws, bolts, etc., can solve the problems of unstable anti-theft effect and high clearance tolerance requirements, achieve reliable anti-theft function, improve anti-disassembly torque, and eliminate tolerance gaps.
Inactive Publication Date: 2012-07-18
何天麟
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- Application Information
AI Technical Summary
Problems solved by technology
[0002] For the utility model patent applied on March 13, 2009, the name is needle roller anti-theft bolt. Bolts, the anti-unloading torque test found that its advantage is that the anti-unloading torque of the ball-type anti-theft nut with a one-way point brake structure is significantly improved, but the common disadvantage is: due to the one-way force groove of the needle-type anti-theft bolt The diameter of the needle roller and the one-way force groove of the ball-type anti-theft nut and the clearance tolerance between the outer circle of the ball are relatively high, resulting in unstable anti-theft effect
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0034] Such as figure 1 figure 2 image 3 As shown, stick the tapered needle 2 to the deep end of the one-way force groove of the nut body 1 and 3 with butter and glue, and the tapered needle 2 part is exposed to the tapered needle anti-theft nut.
Embodiment 2
[0036] Such as Figure 4 As shown, screw the end surface of the nut body 1, which is the exposed part of the cone needle 2, into the exposed part of the bolt 4 at the end of the installed common nut 5, and the cone needle 2 is screwed to the tail end of the common nut 5 following the nut body 1 .
Embodiment 3
[0038] Such as Figure 5 , as shown, tighten the nut body 1 with a wrench until the exposed part of the taper needle 2 is squeezed into the one-way force groove.
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The invention discloses a pushing-needle type anti-theft nut developed on the basis of a rolling needle type anti-theft bolt, which is an anti-theft nut with excellent anti-theft performance and can also be used as an anti-theft nut with an anti-theft function. The pushing-needle type anti-theft nut comprises a nut body and a pushing needle, wherein the pushing needle is extruded into a groove for one-way braking in an installation process, thus the sensitivity of the anti-theft function and anti-dismounting moment are improved and anti-theft effect is ensured. The pushing-needle type anti-theft nut can be combined with a nut with an anti-theft appearance to form a secondary anti-theft nut. The pushing-needle type anti-theft nut has the advantages of being reliable in the anti-theft function, reasonably reducing matching precision of manufacture and installation, eliminating tolerance clearance and increasing the anti-dismounting torque, and is suitable for batch production and wide application.
Description
Technical field: [0001] The invention relates to a mechanical fastener, in particular to an anti-theft nut. Background technique: [0002] For the utility model patent applied on March 13, 2009, the name is needle roller anti-theft bolt. Bolts, the anti-unloading torque test found that its advantage is that the anti-unloading torque of the ball-type anti-theft nut with a one-way point brake structure is significantly improved, but the common disadvantage is: due to the one-way force groove of the needle-type anti-theft bolt The diameter of the needle roller and the one-way force groove of the ball-type anti-theft nut and the clearance tolerance between the outer circle of the ball are relatively high, resulting in unstable anti-theft effect. Invention content: [0003] The present invention improves and enhances the design basis of the needle roller anti-theft bolt and develops a tapered needle anti-theft nut with simple structure and reliable anti-theft performance. [...
Claims
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IPC IPC(8): F16B41/00F16B39/282F16B39/36
Inventor 何天麟
Owner 何天麟