Single-sided fastening bolt

Abstract

The invention discloses a single-sided fastening bolt. The single-sided fastening bolt comprises a threaded rod, a limiting sleeve and a nut, one end of the threaded rod penetrates through the limiting sleeve to be in threaded fit with the nut, no relative rotation exists between the threaded rod and the limiting sleeve, a radial limiting part is arranged at one end of the limiting sleeve, and a plurality of rotation stopping grooves are formed in the other end of the limiting sleeve in the circumferential direction and provided with openings which are back to the radial limiting part; a plurality of locking teeth are arranged at one end of the nut in the circumferential direction, the locking teeth correspond to the rotation stopping grooves in a one-to-one mode, the locking teeth can beconnected with the rotation stopping grooves in an inserted mode, radial grooves are formed in the locking teeth, and the threaded rod is correspondingly provided with radial protrusions capable of being matched with the radial grooves. According to the single-sided fastening bolt, the fastening function is specially achieved under the situation that some single sides are shielded or a single-sided space is limited, the threaded rod, the limiting sleeve and the nut form a whole, and the nut is made to move under the action of thread force by rotating the threaded rod so as to press a fastenedpiece; in the moving process of the nut, the locking teeth are opened under the action of the radial protrusions of the threaded rod to enable the nut presses the fastened piece.

Description

Technical field [0001] The present invention relates to a fastening device, and more particularly to a single-sided fastening bolt. Background technique [0002] Bolts are used as the most common fasteners and are widely used in various product equipment. A set of completed fasteners is usually composed of bolts, nuts, bullets, and flat mats. The fastening mode is typically fixed for fixing the bolts on the fastener, and the other side is engaged with a wrench knob nut to form up and down motion. The way to secure the fastener, and vice versa. General bolt fastening requires sufficient space on both sides of the fastener, can be extended to the wrench operation, and there are many bolts in the assembly process or the product overhaul process, and the other half is obscured. Case. In order to avoid disassembly and locking, it is often necessary to optimize structural optimization or is blocked by the fastener, but even if the welding nut is used, the wire is used to damage the ent...

AI Technical Summary

Problems solved by technology

Generally, bolt fastening requires enough space on both sides of the fastener to be inserted into the wrench for operation. During the assembly process or product maintenance process, there are many bolts in the fastener. Generally, there is room for operation, while the other half is blocked and cannot be operated. Case

In order to avoid the problem of space occupied by disassembly and locking, it is often necessary to optimize the structure or weld the nut on the side where the fastener is blocked, but even if the welded nut is used, the thread of the welded nut may be damaged, resulting in the scrapping of the entire product and waste a lot of manpower

Moreover, this kind of bolts will also cause trouble for product maintenance. Usually, the products are assembled in sequence without any problem. However, when a component fails and needs to be disassembled, because the nearby component blocks the bolt, it is necessary to remove the non-faulty component next to it, and then disassemble the faulty component.

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