CN117212321A

CN117212321A - Never-loosening screw

Info

Publication number: CN117212321A
Application number: CN202311266593.1A
Authority: CN
Inventors: 张吉学
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-09-28
Filing date: 2023-09-28
Publication date: 2023-12-12

Abstract

The invention discloses a never-loosening screw, and relates to the technical field of screw fastening. The nut comprises a screw body, wherein the screw body comprises a screw thread section and a square limiting head at the end part of the screw, a conventional nut and a positioning sleeve, a square limiting hole is formed in the bottom of the barrel-shaped positioning sleeve, the size t of the hole is as large as that of the square limiting head at the end part, and a six-sided clamp f clamp is arranged. The invention uses the limit head and the positioning sleeve ggm to realize never loosening. After the nut is tightly clamped and fixed, the circular positioning sleeve is pressed into a hexagonal enclasping nut by a clamp, so that the permanent i is not loosened. The screw rod and the nut are fixed into a whole, so that the anti-vibration and loosening capabilities are very good.

Description

Never-loosening screw

Technical Field

The invention belongs to the technical field of mechanical fastening, and particularly relates to a screw assembly which is never loosened.

Background

Screws are parts for tightly connecting mechanical devices, including bolts and nuts. The tightening of nuts and bolts is generally relatively stable. However, if the fastened piece is in vibration for a long time, the vibration frequency difference exists between the connecting pieces, so that certain displacement can be generated on each connecting piece in the connecting structure, the connection between the nut and the bolt is loosened, and the stability and the safety of the operation of the connecting structure and even the whole device are further affected. Taking the fastening screw and the nut on the train track as an example, when the train passes through the track at a certain speed, the fastening screw and the nut on the track can generate vibration with a certain frequency, so that the fastening screw and the nut can generate certain displacement to cause connection looseness, and therefore, on the previous old train track, maintenance personnel are required to maintain at regular time, and the time and the labor are wasted. The existing screw is not loosened, the structure is complicated, the manufacture is troublesome, special equipment is needed, and the manufacturing cost is high.

The invention discloses a novel anti-loose bolt assembly, which comprises a screw rod with a limit square column head, a sleeve barrel with a limit hole, and a hexagonal pressing clamp.

Disclosure of Invention

Aiming at the technical problems, the invention provides a rectangular sleeve with square positioning holes sleeved on a screw rod head; the screw bolt head and the screw nut are integrated, so that the screw nut cannot be loosened, and a screw fastener which cannot be loosened permanently is formed.

In order to solve the technical problems, the technical scheme adopted by the invention is that the screw assembly never loosens, the screw assembly comprises a screw rod with a limit square column head and a sleeve with a limit hole, the sleeve with the square positioning hole is sleeved on the rectangular column head and the nut on the screw rod head, so that the screw rod and the nut are integrated, the nut cannot loosen, and the screw fastener never loosens is formed.

Drawings

FIG. 1 is a schematic view of the assembled components of the present invention

Fig. 2, 3 and 4 are schematic views after disassembly.

FIG. 2 is a screw with rectangular studs, panel 1

Fig. 3 shows the positioning sleeve with limiting holes without compaction.

Figure 4 is a view of the positioning sleeve after compression,

fig. 5 is a hexagonal pliers for compression.

The screw rod of fig. 1- (1), the nut of fig. 1- (2), the limit column cap of the end direction of the screw rod of fig. 1- (3), the locating sleeve of fig. 1- (4), and the limit hole on the locating sleeve of fig. 1- (5)

The invention is further illustrated by the following examples which are intended to illustrate the invention but not to limit the scope of the invention.

Method of implementation

Examples

As shown in the figure, a never loosening screw assembly is manufactured, the assembly comprises a screw rod in the figure 1- (1), a nut in the figure 1- (2), a limit column head in the figure 1- (3) end direction of the screw rod, a locating sleeve in the figure 1- (4) position sleeve, a limit hole in the figure 1- (5) position sleeve, a screw rod with a rectangular column head in the figure 2, the width of the rectangular column head is two thirds of the straight line of the screw rod and is positioned at the center of the screw rod, the screw rod and the nut play a role in limit, when the screw rod is in the figure 3, a sleeve barrel with a square hole is made of iron with the thickness of 2 to 4 mm, the bottom can be thicker, the diameter of the barrel is the same as the diameter of a nut circumscribed circle, the barrel length is customized according to requirements, the size of the hole is the same as that of the outside of the limit column head in the figure 1- (5), the limit hole is just sleeved on the square column head, the rotation of the locating sleeve barrel is limited, the nut is screwed on the screw rod, and the locating sleeve is tightly pressed by a special hexagonal wrench (such as in the figure 5), so that the screw rod and the nut is connected into a whole. The user is in the simplest straightforward manner, achieving the most reliable fastening.

Claims

1. The utility model provides a never not hard up screw fastening subassembly, its characterized in that, screw fastening subassembly's core part threaded rod comprises two parts, a part screw thread portion is the same with normal screw, another part, square spacing part is that screw thread portion end portion becomes square column cap, overlaps a barrel-shaped cover that takes square hole in bottom on screw head square column cap and nut, then compresses tightly with hexagon anchor clamps. The invention utilizes square column heads and square holes to limit, and utilizes a simplest mode to realize reliable fastening.

2. A never-loosening fastening assembly is characterized in that a threaded rod of a core component of the screw fastening assembly is provided with a square limiting column head at one threaded end, the width of the column head is divided into two parts of a threaded part, a barrel-shaped positioning sleeve of a fixing nut is arranged at the bottom of the barrel-shaped positioning sleeve, and a square limiting hole is formed in the bottom of the barrel-shaped positioning sleeve. When the positioning sleeve passes through the square limiting post sleeve and is sleeved on the nut, the positioning sleeve is still in a barrel shape, and then the hexagonal clamp clamps the barrel shape of the barrel. The screw rod is tightly attached to the nut, so that the screw rod and the nut are connected into a whole.

3. A never loosening screw tightening assembly as claimed in claim 2, which is a screw with square limit studs, and a nut, a locating sleeve with limit holes, the locating sleeve acting as a fixing nut, and a hexagonal clamping jaw.

4. As shown in the figure, a never loosening screw assembly is manufactured, the assembly comprises a screw rod in the figure 1- (1), a nut in the figure 1- (2), a limit column head in the figure 1- (3) end direction of the screw rod, a locating sleeve in the figure 1- (4) position sleeve, a limit hole in the figure 1- (5) position sleeve, a screw rod with a rectangular column head in the figure 2, the width of the rectangular column head is two thirds of the straight line of the screw rod and is positioned at the center of the screw rod, the screw rod and the nut play a role in limit, when the screw rod is in the figure 3, a sleeve barrel with a square hole is made of iron with the thickness of 2 to 4 mm, the bottom can be thicker, the diameter of the barrel is the same as the diameter of a nut circumscribed circle, the barrel length is customized according to requirements, the size of the hole is the same as that of the outside of the limit column head in the figure 1- (5), the limit hole is just sleeved on the square column head, the rotation of the locating sleeve barrel is limited, the nut is screwed on the screw rod, and the locating sleeve is tightly pressed by a special hexagonal wrench (such as in the figure 5), so that the screw rod and the nut is connected into a whole. The user is in the simplest straightforward manner, achieving the most reliable fastening.