Slit nut

Abstract

A slit nut belongs to the technical field of fasteners. The slit nut comprises a pair of half-slit nut bodies which have identical shape and size and are matched with each other; the central part of each half-slit nut body forms a half-slit nut thread, a wedged flange cavity is formed on a first wedging surface of the half-slit nut body, a first fin and a second fin are also formed on the half-slit nut bodies, the first fin is arranged at the upper part of one side of the half-slit nut body, the second fin is arranged at the lower part of the other side of the half-slit nut body, a wedged flange is formed on a second wedging surface of the first fin, a first acting surface of the first fin forms a cambered surface and a second acting surface of the second fin forms a cambered surface. The slit nut can shorten the distance of threaded part on a screw rod, and still can cause the nut to withdraw from the screw rod once the end of the screw rod is corroded or deformed. The slit nut has rapid operation; and ensures accurate matching between the pair of half-slit nut bodies and the screw rod without self-separation of locking, and the slit nut is also applicable to spindle parts with special constructions such as a dumbbell-shaped spindle part.

Description

technical field [0001] The invention belongs to the technical field of fasteners, and in particular relates to a split nut. Background technique [0002] The structure of the nut in the prior art is an integral structure. In order to screw the nut into and out of the screw rod, the thread on the screw rod must continue from the head of the screw rod to the position to be fastened. The disadvantages are: the thread part on the screw is often very long, which not only increases the workload of thread processing, but also has a section of thread vacant after the nut is tightened, which is easy to be rusted and deformed, so that the nut cannot be unscrewed; the screw part is often It is a part of the shaft parts. In order to unscrew the nut, the screw can only be arranged at both ends or one end of the shaft, resulting in a thin shape at one or both ends of the shaft and a thick middle, which restricts the structural design. For example, when a certain part is to be connected w...

AI Technical Summary

Problems solved by technology

The disadvantages are: the thread part on the screw is often very long, which not only increases the workload of thread processing, but also has a section of thread vacant after the nut is tightened, which is easy to be rusted and deformed, so that the nut cannot be unscrewed; the screw part is often It is a part of the shaft parts. In order to unscrew the nut, the screw can only be arranged at both ends or one end of the shaft, resulting in a thin shape at one or both ends of the shaft and a thick middle, which restricts the structural design.

For example, when a certain part is to be connected with the middle part of the dumbbell-shaped shaft, the nuts in the prior art cannot be used, thereby restricting the structural design of the dumbbell-shaped shaft parts

[0003] The applicant searched, and only seized the straight cylindrical split ball screw nut disclosed in the Chinese utility model patent authorization announcement number 2849334Y and the split ball screw nut introduced in the Chinese invention patent application publication number CN101038022A. These two technical solutions It does not belong to the category of nuts in fasteners, and it cannot make up for the aforementioned deficiencies

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