Retainer nut

Abstract

The invention provides a retainer nut, and belongs to the field of high-performance function components. The problems that in the existing anti-loose screw joint manner utilizing AB glue bonding, operation is troublesome, and bonding positions are inaccurate are solved. The retainer nut comprises a nut. Two glue injection grooves are formed in the nut, and the length direction of the glue injection grooves is parallel to the axis of the nut. Two glue injection holes are further formed in the nut, and the length direction of the glue injection holes is arranged in the radial direction of the nut. A glue injection channel is further arranged in the nut, and the groove bottoms of the glue injection grooves and the inner ends of the glue injection holes communicate with the glue injection channel. The retainer nut further comprises two glue bags located at the groove bottoms of the two glue injection grooves, and A glue and B glue are arranged in the two glue bags correspondingly. The retainer nut further comprises push rods embedded in the two glue injection grooves and further comprises an annular gasket. The outer ends of the two push rods and the top face of the gasket are fixed, and the rod walls of the push rods are sleeved with sealing rings. The nut and a bolt cooperate to form a fastener, the A glue and the B glue can be mixed in proportion simply by normal screw joint operation, and the A glue and the B glue are stably pushed out and accurately bonded to the preset portion.

Description

technical field [0001] The invention belongs to the technical field of high-performance functional components, and relates to a back-stop type nut. Background technique [0002] Bolts and nuts are a commonly used form of fasteners, but the vibration of mechanical equipment will cause the fasteners to fall off and affect the normal operation of the equipment. [0003] The application number is 201610439418.1, and the Chinese invention patent titled "An Anti-theft Fastener and Special Sleeve" has a blind hole on the screw, and a capsule encapsulated with a solvent-volatile adhesive is placed in the blind hole, and at the same time A striker is also placed in the blind hole, and the striker is used to puncture the capsule, so that the nut and the bolt are bonded with an adhesive, thereby achieving anti-loosening and anti-theft effects, but it has the following problems: [0004] 1. The adhesive can only flow out from the through hole on the bolt. Since the depth of the connect...

AI Technical Summary

Problems solved by technology

[0004] 1. The adhesive can only flow out from the through hole on the bolt. Since the depth of the connecting hole of the connected parts is different, the final tightening position of the nut on the bolt is also different, and the adhesive cannot be accurately bonded to the bolt and nut. on the thread;

[0005] 2. It is very troublesome to use the adhesive to bond with the firing pin additionally;

[0006] 3. At present, AB glue is widely used to bond threads, while a single adhesive has poor bonding effect

[0010] 3. There is no device to push A glue and B glue out of the glue discharge port, so after the airbag is pierced, before the A glue and B glue "flow" from the glue discharge port, the mixed A glue and B glue may have solidified and disappeared. Stay in the cavity, not achieve the expected effect

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