CN216692640U

CN216692640U - Novel flaring nut

Info

Publication number: CN216692640U
Application number: CN202122370307.9U
Authority: CN
Inventors: 徐力; 沈凯桦
Original assignee: Shanghai Zhichun Precision Manufacturing Co ltd
Current assignee: Shanghai Zhichun Precision Manufacturing Co ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-06-07
Anticipated expiration: 2031-09-28

Abstract

The utility model provides a novel flaring nut which comprises a nut body with a circular tube structure, wherein the inner wall of the nut body is provided with a connecting thread, and the end part of one end of the nut body is provided with a flaring pressing platform for pressing a pipeline; one section of the nut body is of a hexagonal nut structure, and the outer wall of the other section of the nut body is of a multi-rectangular-tooth structure. The flaring nut can be matched with a corresponding special wrench, and can be matched with a common wrench on the market under the condition that a large torque is required, so that a larger torque can be conveniently applied to the flaring nut, the connection stability of the flaring nut is ensured, and the sealing property between the valve body and the pipeline is improved.

Description

Novel flaring nut

Technical Field

The utility model relates to the technical field of flaring nuts, in particular to a novel flaring nut.

Background

The flaring is connected and is its plastic valve commonly used connection form in the ultrapure field, uses the flaring nut with valve interface pipeline sealing connection, has guaranteed the connection leakproofness of valve with the pipeline, reduces the probability that the pipeline medium leaks outward, therefore the degree of screwing up of flaring nut, directly will influence the installation quality of valve, and during the flaring nut installation, often need exert very big moment.

However, the outer wall of the flaring nut applied to the ultrapure field in the market is provided with multiple rectangular teeth, and the flaring nut is usually required to be matched with a matched special spanner for use, but the flaring nut in the market is easy to wear after the rectangular tooth-shaped bulge height is low, and the latch on the special spanner is used for a long time, so that the flaring nut is easy to slip when a large torque is applied, and cannot apply a larger torque.

SUMMERY OF THE UTILITY MODEL

In view of this, the problem to be solved by the present invention is to provide a novel flared nut, which can be matched with a corresponding special wrench, and can be matched with a common wrench in the market under the condition that a large torque is required, so as to conveniently apply a larger torque to the flared nut, ensure the connection stability of the flared nut, and improve the sealing property between the valve body and the pipeline.

In order to solve the technical problems, the utility model adopts the technical scheme that:

a novel flaring nut comprises a nut body with a circular tube structure, wherein a connecting thread is arranged on the inner wall of the nut body, and a flaring pressing platform for pressing a pipeline is arranged at the end part of one end of the nut body;

one section of the nut body is of a hexagonal nut structure, and the outer wall of the other section of the nut body is of a multi-rectangular-tooth structure.

Further, the hexagonal nut is close to the flaring and presses the platform to set up, many rectangle teeth are kept away from the flaring and are pressed the platform to set up.

Further, the maximum outer diameter of the hexagonal nut is smaller than the minimum outer diameter of the multiple rectangular teeth.

Furthermore, the flaring nut is provided with a special spanner with a question mark structure in a matching mode, and the inner arc surface of the special spanner is provided with clamping teeth matched with the rectangular tooth structure.

Further, the included angle between the latch and the tangent of the inner arc surface is not more than ninety degrees.

The utility model has the advantages and positive effects that:

one end of the outer wall of the flaring nut is arranged to be in a nut structure, the other end of the outer wall of the flaring nut is arranged to be in a multi-rectangular-tooth structure, and after the special spanner provided with the flaring nut is used for a long time, the clamping teeth of the flaring nut are easy to wear and easy to slip when large torque is applied. The flaring nut can enough match with the special spanner that corresponds including nut structure and rectangle tooth structure, under the condition that needs used great moment, can also with the spanner phase-match commonly used on the market, conveniently apply bigger moment for the flaring nut, guarantee the connection steadiness of flaring nut, improve the leakproofness between valve body and the pipeline.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is an overall block diagram of a novel flare nut of the present invention;

FIG. 2 is a view of a special wrench for mating with a new flaring nut of the present invention;

in the figure: 1. a plurality of rectangular teeth; 2. a hexagonal nut; 3. flaring pressing table; 4. a special spanner; 401. and (4) clamping teeth.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 2, the utility model provides a novel flaring nut, which comprises a nut body with a circular tube structure, wherein the inner wall of the nut body is provided with connecting threads, and the end part of one end of the nut body is provided with a flaring pressing platform 3 for pressing a pipeline. When the flaring nut is used, the flaring nut is required to be matched with a flaring connecting piece for use. The flaring connecting piece is also of an outer tubular structure, a blocking platform is arranged in the middle section of the flaring connecting piece, connecting external threads are arranged at two ends of the flaring connecting piece, and one end of each connecting external thread far away from the blocking platform feels that a flaring cone is arranged. The flaring cone is in a round table structure.

When connecting line, cup joint the flaring nut on the plastic tubing, and make the flaring press platform 3 to keep away from the setting of plastic tube end, heat the tip of plastic tubing through heating device, make it warp into loudspeaker form (the open end of loudspeaker towards the outside), the pipe end of loudspeaker form is hugged closely at flaring awl surface, the outside of flaring nut screw in flaring connecting piece, make the flaring press platform 3 compress tightly the pipe end at flaring awl surface, form sealing connection, take over with the valve body with the same mode the other end of flaring connecting piece and be connected, rubber materials's valve body and pipeline sealing connection.

Therefore, the connection sealing performance of the pipeline and the valve body is directly related to the pressing force of the flaring pressing table 3. In order to apply larger torque to the flaring nut conveniently, a hexagonal nut 2 structure is arranged at one section of the nut body, and the flaring nut can be screwed by using a wrench on the market. The outer wall of the other section of the nut body is of a structure with a plurality of rectangular teeth 1, so that the flaring nut can be screwed by a matched special spanner 4.

The biggest external diameter of hexagon nut 2 is less than the minimum external diameter setting of rectangle tooth, makes the rectangle tooth form a natural support and keeps off the platform, and when using the spanner to rotate flaring nut, the terminal surface rotation of rectangle tooth is hugged closely to the spanner, avoids spanner and hexagon nut 2 nonparallel, produces the jamming, makes things convenient for the steady rotation of spanner.

Preferably, can be close to flaring with hexagon nut 2 and press the platform 3 to set up, press the platform 3 setting with flaring of keeping away from with many rectangle teeth 1, the hexagon spanner that commonly uses on the market has half-open and two types of full closure, when using full closure hexagon spanner, because hexagon nut 2's the biggest external diameter is less than the minimum external diameter of rectangle tooth, conveniently takes out full closure hexagon spanner from the flaring nut.

The flaring nut is provided with the special spanner 4 of question mark structure in the matching, and the circular arc section of special spanner 4 is used for cooperating with the flaring nut, and the straight line end of special spanner 4 is the grab handle, conveniently exerts moment. Be provided with latch 401 on the interior arc surface of its circular arc section of special spanner 4, the interval phase-match of latch 401 and rectangle tooth, during the use, go into the direct clearance of rectangle tooth with latch 401 card, rotate special spanner 4 can. Preferably, the included angle between the latch 401 and the tangent of the inner arc surface is not more than ninety degrees, so that the tip part of the latch 401 is in contact with the side wall of the rectangular tooth, and the moment is conveniently applied.

The working principle and the working process of the utility model are as follows:

for example, a plastic pipe is connected with a plastic valve body, a flaring nut is sleeved on the end of a connecting pipe, a flaring pressing table 3 is placed far away from the end of the connecting pipe, the end of the connecting pipe is thermally changed into a horn shape by using a heating element, the horn-shaped end of the connecting pipe is attached to the flaring conical surface of a flaring connecting piece, the flaring nut is screwed on the outer side of the flaring connecting piece, the inner wall of the flaring pressing table 3 presses the end of the connecting pipe tightly, and the end of the connecting pipe is attached to the flaring conical surface tightly.

The special spanner 4 is because long-time wearing and tearing, when exerting great moment for the flaring nut, appears skidding easily, changes the half-open spanner that commonly uses on the market, uses half-open spanner to rotate the flaring nut, guarantees half-open spanner's takeover and the sealed steadiness of flaring connecting piece. And connecting the other end of the flaring connecting piece with the connecting pipe of the valve body by using the same method to complete the sealing connection of the plastic valve body and the plastic connecting pipe.

The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.

Claims

1. The novel flaring nut is characterized by comprising a nut body with a circular tube structure, wherein the inner wall of the nut body is provided with a connecting thread, and the end part of one end of the nut body is provided with a flaring pressing platform (3) for pressing a pipeline;

one section of the nut body is of a hexagon nut (2) structure, and the outer wall of the other section of the nut body is of a multi-rectangular-tooth (1) structure.

2. The novel flaring nut of claim 1, wherein said hexagonal nut (2) is disposed proximate to the flaring pressing table (3), and said multi-rectangular teeth (1) are disposed distal to the flaring pressing table (3).

3. Flaring nut according to claim 1, characterized in that the maximum external diameter of said hexagonal nut (2) is smaller than the minimum external diameter setting of the multi-rectangular teeth (1).

4. The novel flaring nut of any one of claims 1 to 3, characterized in that the flaring nut is matched with a special wrench (4) with a question mark structure, and the inner arc surface of the special wrench (4) is provided with a latch (401) matched with a rectangular tooth structure.

5. A novel flare nut of claim 4 wherein the angle of the latch (401) with respect to the tangent of the inner arcuate surface is no greater than ninety degrees.