CN203322541U

CN203322541U - Improved metal connector

Info

Publication number: CN203322541U
Application number: CN201320366169XU
Authority: CN
Inventors: 何金汉
Original assignee: ZHEJIANG JINCHEN SANPU HEAT EXCHANGER CO Ltd
Current assignee: ZHEJIANG JINCHEN SANPU HEAT EXCHANGER CO Ltd
Priority date: 2013-06-22
Filing date: 2013-06-22
Publication date: 2013-12-04
Anticipated expiration: 2023-06-22

Abstract

The utility model provides an improved metal connector, belongs to the technical field of pipeline connection, and solves the technical problem that a conventional connector is prone to slip when screwed forcefully. The improved metal connector comprises a tubular connector body which is formed by connecting a first connector and a second connector, wherein outer threads are formed in the first connector, inner threads are formed in the second connector, a hexagon nut is fixed in the middle of the connector body and externally tangent to the connector body, and a tetragonal nut is further arranged on one side of the hexagon nut and externally tangent to the connector body. When the improved metal connector is forcefully screwed, the slipping can be prevented, and the sealing effect can be realized when the connector is connected with a pipeline.

Description

A kind of improved metal joint

Technical field

The utility model belongs to the pipeline connection technology field, relates to a kind of joint, especially relates to a kind of improved metal joint.

Background technique

Joint is generally application in pipeline connects; its Main Function is as the pipeline of different bores being carried out to the connection of a switching; common this joint one end is provided with internal thread; the other end is provided with outside thread, facilitates like this being spirally connected of pipeline, in order to facilitate pipeline, when being spirally connected, tightens; usually also can a hexagon nut be set in joint central authorities; spanner is clamped hexagon nut, and pipe tongs is clamped pipeline, so just pipeline and joint can be tightened.

But there is a defect at above-mentioned joint, well-known, when spanner especially adjustable spanner, when clamping hexagon nut, if firmly excessive, easily cause the surface of contact of hexagonal and spanner to skid, affect pipeline and connect operation.

Chinese patent literature discloses a kind of pipe connector [application number: 200810022585.1], this patent comprises connecting tube A and pipe B, the nut that is provided with externally threaded inipple and coordinates with inipple, the connecting end of pipe B is provided with annular boss does not come off nut from pipe B, groove is established in pipe B connecting port, be connected to pipe A in o type circle hermetic seal in groove, be provided with annular groove in inipple, the connecting end of pipe A is provided with and makes it embed the annular boss in the inipple annular groove.This scheme has solved manufacturing deficiency and the leakage occurred because of in the technological processes such as welding, cleaning, has realized whole pipeline inside homogeneity welding, has exempted from the purposes such as cleaning, saving material.

Yet above-mentioned patent does not solve spanner and nut causes the problem of skidding in firmly turning process.

The model utility content

The purpose of this utility model is for the problems referred to above, prevents the improved metal joint skidded when a kind of turning is provided.

For achieving the above object, the utility model has adopted following technical proposal: a kind of improved metal joint, the joint body that comprises tubulose, joint body has the first joint and the second joint to connect to form, described the first joint is provided with outside thread, described the second joint is provided with internal thread, also be fixedly installed a hexagon nut in the centre of joint body, this hexagon nut is cut in joint body outward, a side at hexagon nut also is provided with a tetragonal nut, and this tetragonal nut is cut in joint body outward.

In above-mentioned a kind of improved metal joint, described joint body is whole through oxidation processes.

In above-mentioned a kind of improved metal joint, also be provided with the groove 4 of a circular arc bottom in the port of the first joint 2.

In above-mentioned a kind of improved metal joint, the distance of described groove 4 distance the first joint 2 ports is between 3-5mm.

In above-mentioned a kind of improved metal joint, also be provided with an o type circle in groove 4, this o type circle and groove 4 fit tightly, and the bore of o type circle can be less than or equal to the bore of bottom portion of groove, is convenient to like this make o type circle and groove to fit tightly.

In above-mentioned a kind of improved metal joint, the internal diameter of described the first joint 2 and the second joint 3 is than being 1:4-1:1, and different ratios can allow the pipeline of different bores be connected.

Compared with prior art, the utility model has the advantage of:

1, the utility model is creationary is arranged on hexagon nut and tetragonal nut combination on joint, when spanner turns while skidding hexagon nut, can select tetragonal nut as the fulcrum of exerting oneself, due to tetragonal nut larger with surface of contact spanner, therefore can effectively prevent that nut from skidding in firmly turning process, in addition, hexagon nut can also be exerted oneself to it with special-purpose instrument (as interior hex head fastener).

2, the utility model also has been provided with seal ring, has facilitated pipeline and joint to be connected and sealed, and has accelerated the efficiency be tightly connected.

The accompanying drawing explanation

Fig. 1 is plan view of the present utility model;

Fig. 2 is left view of the present utility model.

In figure, joint body 1, the first joint 2, the second joint 3, groove 4, tetragonal nut 5, hexagon nut 6.

Embodiment

Embodiment 1

As shown in Figure 1 and Figure 2, a kind of improved metal joint, the joint body 1 that comprises tubulose, joint body 1 has the first joint 2 and the second joint 3 to connect to form, and described the first joint 2 is provided with outside thread, and described the second joint 3 is provided with internal thread, also be fixedly installed a hexagon nut 6 in the centre of joint body 1, the outer joint body 1 that is cut in of this hexagon nut 6, also be provided with a tetragonal nut 5, the outer joint body 1 that is cut in of this tetragonal nut 5 in a side of hexagon nut 6.

Described joint body 1 is whole through oxidation processes, can improve the corrosion resistance of joint body after oxidation processes.

Also be provided with the groove 4 of a circular arc bottom in the port of the first joint 2, the distance of described groove 4 distance the first joint 2 ports is between 3-5mm, also be provided with an o type circle in groove 4, this o type circle and groove 4 fit tightly, the bore of o type circle can be less than or equal to the bore of bottom portion of groove, is convenient to like this make o type circle and groove to fit tightly, when the outside thread of pipeline and the first joint 2 is spirally connected, the o type encloses the sealing between pipeline and the first joint 2, prevents fluid leakage.

The internal diameter of described the first joint 2 and the second joint 3 is than being 1:4-1:1, and different ratios can allow the pipeline of different bores be connected.

Although this paper has more been used the terms such as joint body, the first joint, the second joint, groove, tetragonal nut, hexagon nut, do not get rid of the possibility of using other term.Using these terms is only in order to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with the utility model spirit.

Claims

1. an improved metal joint, the joint body (1) that comprises tubulose, joint body (1) has the first joint (2) and the second joint (3) to connect to form, described the first joint (2) is provided with outside thread, described the second joint (3) is provided with internal thread, it is characterized in that, also be fixedly installed a hexagon nut (6) in the centre of joint body (1), the outer joint body (1) that is cut in of this hexagon nut (6), a side at hexagon nut (6) also is provided with a tetragonal nut (5), the outer joint body (1) that is cut in of this tetragonal nut (5).

2. a kind of improved metal joint according to claim 1, is characterized in that, described joint body (1) is whole through oxidation processes.

3. a kind of improved metal joint according to claim 1, is characterized in that, also is provided with the groove (4) of a circular arc bottom in the port of the first joint (2).

4. a kind of improved metal joint according to claim 3, is characterized in that, the distance of described groove (4) distance the first joint (2) port is between 3-5mm.

5. according to the described a kind of improved metal joint of claim 3 or 4, it is characterized in that, also be provided with an O type circle in groove (4), this O type circle and groove (4) fit tightly.

6. according to claim 1 or 2 or 3 or 4 described a kind of improved metal joints, it is characterized in that, described the first joint (2) is 1:4-1:1 with the internal diameter ratio of the second joint (3).