CN2118856U

CN2118856U - Anti-disassembling bolt

Info

Publication number: CN2118856U
Application number: CN 92211325
Authority: CN
Inventors: 王军
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-03-07
Filing date: 1992-03-07
Publication date: 1992-10-14

Abstract

The utility model relates to a bolt that mainly used field facilities such as iron tower allies oneself with solid usefulness, characterized by: the bolt has a threaded section and a pin hole processed longitudinally along the screw. The pin hole is deviated to one side of the bolt, and the section circle contour line of the pin hole is cut with the tooth root circle of the thread. When in use, the nut is matched with a common nut and a pin, so that the adjustment in installation can be conveniently realized. And the positive effects of anti-disassembly and reliable locking are achieved after the corresponding parts are connected and fixed.

Description

Defence bolt

The utility model is a fastening piece, a kind of more precisely bolt that is mainly used in the solid usefulness of field facility such as iron tower connection.

Utilizing bolt assembly to be convenient to dismounting, the solid reliable characteristics of connection, to implement the connection of open-air building [as electric power pylon] be convenient and effectively admittedly.Yet the characteristics of easy disassembly really make many lawless persons steal state-owned assets such as tower material opportunity.In order to address this problem, the applicant had once applied for the utility model patent [patent No. is 88219950.1] of " anti-theft bolt component and special spanner " in September, 1988.This assembly comprises the two-sided screw bolt and nut that has the zigzag fashion boss, and has the pad of spring sheet.This structure is utilized the principle of click structure, makes the rotation of nut irreversible, guarantees the anti-dismounting performance of bolt with this.Yet, blemish in an otherwise perfect thing be, this bolt assembly can't become flexible once screwing just, the part adjustment during this give to install has brought passive influence.

The purpose of this utility model is: make its in use not only anti-dismounting connection solid reliable by improvement to plain bolt, and also should be easy to adjust in installing.

Nti-removing nut bolt provided by the utility model is characterized in that: at the thread section that has of bolt, a pin-and-hole that vertically processes along screw rod is arranged, and a side of pin-and-hole deflection bolt, and the circle contour line that cuts of pin-and-hole cuts mutually with the root circle of screw thread.

Introduce embodiment of the present utility model below in conjunction with accompanying drawing.

Accompanying drawing 1 is a plan view of the present utility model;

Accompanying drawing 2 is left views of accompanying drawing 1;

Accompanying drawing 3 is the utility model working state schematic representations.

In the accompanying drawings, the 1-bolt, the 2-pin-and-hole, 3 nuts, the 4-pin, 5-is joined firmware, and 6-is joined firmware.

As shown in the figure, inventive point of the present utility model just is and will processes pin-and-hole [2] on the bolt [1].Certainly, the shape of bolt [1] can be done multiple choices according to construction requirement, countersunk screw for example, interior six square bolts and double threaded screw or the like.Pin-and-hole [2] is positioned at the screw part of bolt [1], is the blind hole of deflection bolt [1] one side screw thread.The circle contour line that cuts of pin-and-hole [2] should cut mutually with the root circle of bolt [1] as shown in Figure 2.

In use, the utility model will cooperate with plain nut and pin finishes solid, anti-dismantling of the task of connection, and specific practice is as follows:

Bolt [1] is passed by behind the mounting hole on the connection firmware [5] and [6], revolve with nut [3].Utilize bolt [1] will be pressed against [can use the attached parts that help such as plain washer, spring washer as required in certainly, joining admittedly] by the connection firmware with the cooperation of nut [3].At this moment, needn't implement the locking of bolt assembly, but it is solid to continue that the miscellaneous part on the building [as iron tower] is installed connection.If in the solid process of integral body connection, meet the inappropriate situation of fit dimension, then can unclamp some relevant nut [3] easily, adjust or change some and joined firmware.After building [as iron tower] integral installation finished, the pin [4] that will cooperate with pin-and-hole [2] was knocked in the pin-and-hole [2] on each bolt [1] one by one again.Because the circle contour line that cuts of pin-and-hole [2] is justified with the thread root on the bolt [1] and is cut mutually, so the pin of knocking in the pin-and-hole [2] [4] will destroy the screw thread of bolt [1] and nut [3], and sell [4] itself also with in the embedding pin-and-hole [2] tightly.At pin [4] be damaged under the acting in conjunction of screw thread, just can reach anti-dismounting purpose effectively.

The utility model has the advantages that: simple in structure, the adjustment in being convenient to install, and the Anti-dismantling locking after joining admittedly is reliable.

Claims

1, a kind of nti-removing nut bolt is characterized in that: at the thread section that has of bolt, a pin-and-hole that vertically processes along screw rod is arranged, and pin-and-hole deflection bolt one side, and pin-and-hole cuts the circle contour line and cuts mutually with the root circle of screw thread.