CN216158078U

CN216158078U - Weather-resistant high-strength bolt

Info

Publication number: CN216158078U
Application number: CN202121888641.7U
Authority: CN
Inventors: 侯海祥; 李俊
Original assignee: Suzhou Haimo Precision Hardware Co ltd
Current assignee: Suzhou Haimo Precision Hardware Co ltd
Priority date: 2021-08-10
Filing date: 2021-08-10
Publication date: 2022-04-01
Anticipated expiration: 2031-08-10

Abstract

The utility model provides a weather-resistant high-strength bolt which comprises a bolt and a nut, wherein the bolt comprises a bolt head, a gasket, a polished rod part and a threaded part, a cavity is arranged in the threaded part, a pressing plate is arranged in the cavity, stop levers are arranged on two sides of the inner wall of the cavity, one end of each stop lever is hinged to the inner wall of the cavity through a hinge joint, a limiting plate is arranged at the top end of the cavity, a plurality of limiting nails are arranged in the side wall of the cavity, springs are sleeved on the limiting nails, one ends of the springs are abutted to the inner wall of the cavity, the other ends of the springs are abutted to the top ends of the limiting nails, a limiting channel is arranged at the circle center of the bottom end of the threaded part, and the limiting channel is communicated with the cavity. And a through hole is formed in the side wall of the nut. Set up the through-hole cooperation on spacing nail and the nut lateral wall, can let the bolt under long-time vibration, the nut can not become flexible and drop to guarantee bolted connection's fastening nature.

Description

Weather-resistant high-strength bolt

Technical Field

The utility model relates to the field of bolts, in particular to a weather-resistant high-strength bolt.

Background

The bolt is a mechanical object, a cylindrical threaded fastener matched with a nut, and a fastener composed of a head part and a screw (a cylinder with an external thread) needs to be matched with the nut and is used for fastening and connecting two objects with through holes. This type of connection is called a bolted connection, where the two parts can be separated if the nut is unscrewed from the bolt, so that the bolted connection is a detachable connection. However, when the existing bolt is installed on machines of some large-scale factories, vibration generated during the operation of the machine can loosen the nut of the bolt through a period of use, so that the bolt is not firmly fastened and can fall off after a long time to cause danger.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a weather-resistant high-strength bolt.

The utility model is realized by adopting the following technical scheme: the utility model provides a resistant high strength bolt of waiting, includes bolt, nut, the bolt includes bolt head, gasket, polished rod portion and screw portion, screw portion sets up the cavity in the portion, be provided with the clamp plate in the cavity, cavity inner wall both sides are provided with the pin, pin one end articulates on the cavity inner wall through the hinge joint, the cavity top is provided with the limiting plate, be provided with a plurality of banking pin in the cavity lateral wall, the spring has been cup jointed on the banking pin, spring one end and cavity inner wall looks butt, the other end and banking pin top butt, be provided with the round hole that runs through in the screw portion, supply the banking pin to pass, the bottom centre of a circle department of screw portion is equipped with spacing passageway, spacing passageway is linked together with the cavity.

And a through hole is formed in the side wall of the nut.

The limiting channel is internally provided with internal threads and is provided with a limiting stud with a corresponding size and shape.

The outer side of the limiting stud is provided with an external thread corresponding to the internal thread of the fastening channel, and the limiting stud is provided with a linear groove.

And an internal thread is arranged on the inner wall of the nut, and the internal thread is matched with the external thread of the threaded part of the bolt.

Compared with the prior art, the limiting nail is matched with the through hole in the side wall of the nut, so that the nut cannot loosen and fall off under the long-time vibration of the bolt, and the fastening performance of bolt connection is guaranteed.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is a schematic view of the nut of the present invention;

in the figure: 1. a bolt head; 2. a gasket; 3. a light bar section; 4. a threaded portion; 5. a stud; 51. a straight groove; 6. a nut; 61. a through hole; 7. a cavity; 71. a hinge joint; 72. a stop lever; 73. a limiting plate; 74. A limit pin; 75. a spring; 76. pressing a plate; 77. and a limiting channel.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.

The utility model is further explained with reference to the accompanying drawings, as shown in fig. 1-2, a weather-resistant high-strength bolt comprises a bolt and a nut 6, the bolt comprises a bolt head 1, a gasket 2, a polished rod portion 3 and a threaded portion 4, a cavity 7 is arranged in the threaded portion 4, a pressure plate 76 is arranged in the cavity 7, stop levers 72 are arranged on two sides of the inner wall of the cavity 7, one end of each stop lever 72 is hinged to the inner wall of the cavity 7 through a hinge joint 71, a limit plate 73 is arranged at the top end of the cavity 7, a plurality of limit nails 74 are arranged in the side wall of the cavity 7, a spring 75 is sleeved on each limit nail 74, one end of each spring 75 is abutted against the inner wall of the cavity 7, the other end of each spring is abutted against the top end of each limit nail 74, a through round hole is arranged on the threaded portion 4 for the limit nail 74 to pass through, and a limit channel 77 is arranged at the center of the bottom end of the threaded portion 4, the limiting channel 77 communicates with the cavity 7. Under the normal state, the spring 75 is in the state of stretching, pushes the limit pin 74 in the inner wall of the thread part 4, and the limit plate 73 at the top of the cavity 7 pushes the stop lever 72 against, so that the limit pin 74 does not fall off into the cavity 7.

The side wall of the nut 6 is provided with a through hole 61, and the diameter of the through hole 61 is the same as that of the limit nail 74.

The limiting channel 77 is internally provided with internal threads, and the limiting channel 77 is provided with a limiting stud 5 with a corresponding size and shape.

The outer side of the limit stud 5 is provided with an external thread corresponding to the internal thread of the fastening channel, the limit stud 5 is provided with a straight groove 51, and the straight groove 51 is favorable for mounting and dismounting the limit stud 5.

And an internal thread is arranged on the inner wall of the nut 6, and the internal thread is matched with the external thread of the bolt thread part 4.

The working principle is as follows: during the use, insert the bolt in the through-hole 61 of two work pieces that need fastening connection, after the bolt was placed, nut 6 combines together through the internal thread on the inner wall and the external screw thread of bolt, fasten the work piece, adjust the position of nut 6, correspond through-hole 61 with the through-hole 61 of the stop pin 74 on the nut 6 outer wall and bolt screw portion 4, later install spacing double-screw bolt 5 and screw in spacing passageway 77, spacing double-screw bolt 5 and clamp plate 76 butt, push up clamp plate 76, push up the pin 72 of both sides towards both sides extrusion when clamp plate 76 upwards slides, the pin 72 compresses spring 75, stop pin 74 is ejecting, insert in the through-hole 61 of nut 6 lateral wall, realize the spacing fastening of nut 6.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims

1. The utility model provides a resistant high strength bolt of waiting, includes bolt, nut, the bolt includes bolt head, gasket, polished rod portion and screw portion, its characterized in that: a cavity is arranged in the threaded part, a pressing plate is arranged in the cavity, stop rods are arranged on two sides of the inner wall of the cavity, one end of each stop rod is hinged to the inner wall of the cavity through a hinge joint, a limiting plate is arranged at the top end of the cavity, a plurality of limiting nails are arranged in the side wall of the cavity, springs are sleeved on the limiting nails, one ends of the springs are abutted to the inner wall of the cavity, the other ends of the springs are abutted to the top ends of the limiting nails, a through round hole is formed in the threaded part and used for the limiting nail to pass through, a limiting channel is arranged at the center of the bottom end of the threaded part, and the limiting channel is communicated with the cavity;

a through hole is formed in the side wall of the nut;

2. The weather-resistant high-strength bolt according to claim 1, wherein: the outer side of the limiting stud is provided with an external thread corresponding to the internal thread of the fastening channel, and the limiting stud is provided with a linear groove.

3. The weather-resistant high-strength bolt according to claim 1, wherein: and an internal thread is arranged on the inner wall of the nut, and the internal thread is matched with the external thread of the threaded part of the bolt.