CN218151948U

CN218151948U - Holding type locknut

Info

Publication number: CN218151948U
Application number: CN202222495264.1U
Authority: CN
Inventors: 张豪
Original assignee: Jiaxing Jiansheng Hardware Technology Co ltd
Current assignee: Jiaxing Jiansheng Hardware Technology Co ltd
Priority date: 2022-09-20
Filing date: 2022-09-20
Publication date: 2022-12-27
Anticipated expiration: 2032-09-20

Abstract

The utility model discloses a hold formula locknut tightly, including main nut and lock nut, main nut is equipped with the screw thread through-hole, main nut includes base and locking cone, and the locking cone dwindles gradually towards the direction of keeping away from the base, fore-and-aft open slot has been seted up to the afterbody of locking cone, the tail end of locking cone is equipped with the locking rack, the last conical locking groove of having seted up of lock nut. The utility model discloses a to set up the open slot on the locking cone, when making the open slot install on the locking cone, to inside extrusion locking cone, make the inboard screw rod of holding the bolt tightly of locking cone to make on the locking rack prevent moving back tooth chucking screw rod, prevent that the bolt from taking place to roll back, play fine locking effect.

Description

Holding type locknut

[ technical field ] A method for producing a semiconductor device

The utility model relates to a technical field of nut, especially locknut's technical field.

[ background of the invention ]

The common fasteners comprise a bolt and nut assembly, a stud and nut assembly, a screw and the like, wherein the nut is a polygonal cylinder provided with a central threaded hole, an inner thread is arranged on the inner annular wall of the central threaded hole and matched and screwed with an outer thread on the stud for fastening and connecting two or more fastened pieces with through holes. The nut assembly is susceptible to loosening when used in some vibratory environments, and it is therefore desirable to improve the loosening prevention performance of the nut.

[ Utility model ] content

The utility model aims at solving the problem in the prior art, providing a hold formula locknut tightly, can make nut locking bolt, prevent that the nut pine from taking off.

In order to achieve the purpose, the utility model provides a hold formula locknut tightly, including main nut and lock nut, main nut is equipped with the screw thread through-hole, main nut includes base and locking cone, and the locking cone reduces towards the direction of keeping away from the base gradually, fore-and-aft open slot has been seted up to the afterbody of locking cone, the tail end of locking cone is equipped with the locking rack, conical locking groove has been seted up on the lock nut.

Preferably, the locking rack is provided with anti-withdrawal teeth, the anti-withdrawal teeth are obliquely arranged on the inner side of the locking cone, and the oblique direction of the anti-withdrawal teeth is opposite to the screwing-out direction of the bolt.

Preferably, the locking cone is made of metal having elasticity.

Preferably, the outer surface of the locking cone is provided with external threads, and the inner wall of the locking groove is provided with internal threads.

Preferably, after the locking groove is matched with the locking cone, the locking cone is extruded to reduce the diameter.

The utility model has the advantages that: the utility model discloses a to set up the open slot on the locking cone, when making the open slot install on the locking cone, inwards extrude the locking cone, make the inboard screw rod of holding the bolt tightly of locking cone to make on the locking rack prevent moving back tooth chucking screw rod, prevent that the bolt from taking place to roll back, play fine locking effect.

The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.

[ description of the drawings ]

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural view of the main nut of the present invention;

fig. 3 is a bottom view of the main nut of the present invention.

In the figure: 1-main nut, 2-locking nut, 3-thread through hole, 4-open slot, 5-locking rack, 11-base, 12-locking cone, 21-locking slot and 51-anti-back tooth.

[ detailed description ] embodiments

Referring to fig. 1, fig. 2, fig. 3, the utility model relates to a hold formula locknut tightly, including main nut 1 and lock nut 2, main nut 1 is equipped with screw through-hole 3, main nut 1 includes base 11 and locking cone 12, and locking cone 12 reduces towards the direction of keeping away from base 11 gradually, fore-and-aft open slot 4 has been seted up to the afterbody of locking cone 12, the tail end of locking cone 12 is equipped with locking rack 5, conical locking groove 21 has been seted up on lock nut 2, be equipped with on the locking rack 5 and prevent moving back tooth 51, prevent moving back tooth 51 slope setting in the inboard of locking cone 12, the slope direction that prevents moving back tooth 51 is opposite with the direction of unscrewing of bolt, locking cone 12 is made by having elastic metal, the surface of locking cone 12 is equipped with the external screw thread, the inner wall of locking groove 21 is equipped with locking cone 12 cooperates the installation back, locking cone 12 is extruded, is equipped with a plurality of tooth's socket on the bolt, and the card is gone into preventing that tooth has improved the locking power of locking rack.

The utility model discloses when the installation, on installing the bolt with main nut earlier, on installing the bolt with lock nut after that, make open slot and the installation of locking cone matching, the inside locking of extrusion locking cone holds tightly the bolt, and the locking rack of tail end can the chucking screw rod, and when the bolt had the trend of back-out, can be prevented by moving back the tooth and prevent, prevent to take place to roll back.

The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.

Claims

1. The utility model provides a formula locknut of hugging closely which characterized in that: including main nut (1) and lock nut (2), main nut (1) is equipped with screw thread through-hole (3), main nut (1) includes base (11) and locking cone (12), and locking cone (12) dwindles gradually towards the direction of keeping away from base (11), fore-and-aft open slot (4) have been seted up to the afterbody of locking cone (12), the tail end of locking cone (12) is equipped with locking rack (5), conical locking groove (21) have been seted up on lock nut (2).

2. The clinch-type locknut of claim 1, wherein: the locking device is characterized in that anti-retreating teeth (51) are arranged on the locking rack (5), the anti-retreating teeth (51) are obliquely arranged on the inner side of the locking cone (12), and the oblique direction of the anti-retreating teeth (51) is opposite to the screwing-out direction of the bolt.

3. The clinch-type locknut of claim 1, wherein: the locking cone (12) is made of metal having elasticity.

4. The clinch-type locknut of claim 1, wherein: the outer surface of the locking cone (12) is provided with external threads, and the inner wall of the locking groove (21) is provided with internal threads.

5. The clinch-type locknut of claim 1, wherein: after the locking groove (21) is matched with the locking cone (12) for installation, the locking cone (12) is extruded to reduce the diameter.