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Fastening screw not prone to loosening

A technology that is not easy to fasten screws and is applied in the direction of threaded fasteners, locking fasteners, screws, etc., which can solve the problems of consuming manpower, material and financial resources, labor and time for inspection, etc.

Pending Publication Date: 2021-01-29
韩新博
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing self-locking screws do not allow the nut to loosen when the vibration is large or for a long time, and frequent inspections are labor-intensive and time-consuming, consuming manpower, material and financial resources

Method used

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  • Fastening screw not prone to loosening
  • Fastening screw not prone to loosening
  • Fastening screw not prone to loosening

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] Such as Figure 1-11 As shown, the present invention provides a fastening screw that is not easy to loosen, including: a large screw 10 coaxially arranged, a small screw 20, a workpiece 30, a sleeve cap 50, a drive plate 60 and a rotating member 70; wherein, the The large screw 10 and the small screw 20 are installed in the same direction, and the rotating member 70 adopts a top groove 71 with an acute opening angle;

[0075] Specifically:

[0076] Such as image 3 As shown, the large screw 10 of the present invention is provided with a through hole 11 for the small screw 20 to pass through. The through hole 11 can be a threaded hole or a common smooth through hole. On the contrary or the same direction of rotation and different tooth pitches; the workpiece 30 of the present invention is provided with a large internally threaded hole 31 and a small internally threaded hole 32 in a stage shape, and the screw threads of the large internally threaded hole 31 and the smal...

Embodiment 2

[0088] Such as Figure 12 , 13 As shown, the present invention provides a fastening screw that is not easy to loosen. The difference between it and Embodiment 1 is that the opening angle of the top groove 71 is a right angle or an obtuse angle that can prevent the thimble from slipping.

[0089] The present invention provides a method for installing fastening screws, which is consistent with Embodiment 1;

[0090] The present invention provides a method for dismounting fastening screws. Since the opening angle of the top groove 71 is a right angle or an obtuse angle that can prevent the thimble from slipping, the thimble 51 has a space to open, so the driving plate 60 can be directly rotated to make the thimble 51 detach from the top. Groove 71; the subsequent disassembly method is consistent with that of Embodiment 1.

Embodiment 3

[0092] Such as Figures 14 to 16As shown, the present invention provides a fastening screw that is not easy to loosen, including: a coaxially arranged large screw 10, a small screw 20, a nut 40, a sleeve cap 50, a drive plate 60 and a rotating member 70; wherein, the embodiment 3 The large screw 10 and the small screw 20 are installed oppositely, and the rotating member 70 adopts a top groove 71 with an acute opening angle;

[0093] The difference with Embodiment 1 is that the present embodiment is provided with a small internally threaded hole 32 cooperating with the small screw 20 on the large screw 10, and the small internally threaded hole 32 can be a through hole or a blind hole; Matching large internal threaded hole 31, the nut 40 is provided with a washer 41 with a small center hole, the washer 41 and the nut 40 can be a separate structure or an integrated structure, the washer 41 provides a mounting platform for the rotating part 70, and the small The screw 20 can pas...

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PUM

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Abstract

The invention discloses a fastening screw not prone to loosening. The fastening screw comprises a large screw rod, a small screw rod and a workpiece. A through hole for the small screw rod to penetrate through is formed in the large screw rod, a large internal threaded hole and a small internal threaded hole which are in a step shape are formed in the workpiece, and the large screw rod and the small screw rod are opposite in screwing direction of external threads or are identical in screwing direction and different in tooth pitch; the tail end of the large screw rod is assembled in the large internal threaded hole, and the tail end of the small screw rod penetrates through the through hole and then is assembled in the small internal threaded hole; the head end of the large screw rod is sleeved with a sleeve cap matched with the head end, and a plurality of ejector pins are annularly distributed on the sleeve cap; a driving plate with a central hole is arranged on the sleeve cap, and aplurality of shifting columns at the bottom of the driving plate are correspondingly arranged in shifting holes of the ejector pins; rotating pieces are mounted below the head end of the small screw rod, and a plurality of ejector grooves are annularly distributed in the rotating pieces; the rotating pieces are arranged in the middles of the ejector pins, and the ejector pins are correspondingly clamped in the ejector grooves, so that the small screw rod can rotate in the tightening direction and cannot rotate in the loosening direction, and locking of the large screw rod, the small screw rodand the workpiece is achieved.

Description

technical field [0001] The invention relates to the technical field of screws, in particular to a fastening screw that is not easy to loosen. Background technique [0002] Screws include screw rods and nuts (nuts), which are used to fasten parts by screwing the screw rods and nuts together. It is a common component of all manufacturing machinery. [0003] Existing commonly used screws are unidirectional screw rods used in conjunction with nuts, which will easily cause loosening of the joints under external environments such as vibration. [0004] At the same time, the existing screws also include some commonly used self-locking screws. The lock nut is composed of two parts, and each part has staggered cams. Since the slope angle of the internal wedge design is greater than the nut angle of the bolt, this combination is convenient. Tightly bite into a whole. When there is vibration, the convex parts of the loose nut will shift each other to generate lifting tension, so as to...

Claims

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Application Information

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IPC IPC(8): F16B35/04F16B35/06F16B39/282F16B33/02
CPCF16B33/02F16B35/041F16B35/06F16B39/282F16B2033/025
Inventor 韩新博
Owner 韩新博
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