CN204879167U - Oil pipe head - Google Patents

Abstract

The utility model discloses an oil pipe head, including the whole columniform forging main part that is, the forging main part is equipped with axial through's through -hole, the through -hole is whole to be cylindrical, just with the coaxial heart of forging main part, the internal perisporium of through -hole is equipped with the bulge loop rather than the coaxial heart, the axial both ends of bulge loop, they pass through the transition of chamfer structure with the through -hole internal perisporium, the forging main part, terminal surface at its axial both ends extends the flange that has with the coaxial heart of through -hole respectively, and one of them flange passes through the transition of chamfer structure with forging main part periphery wall, and another flange passes through the stair structure transition with forging main part periphery wall, the axial both ends opening of through -hole, they pass through the transition of chamfer structure with above -mentioned forging main part terminal surface. The utility model discloses oil pipe head, its is rational in infrastructure, is convenient for forge.

Description

Tubing head

Technical field

The utility model relates to tubing head.

Background technique

Existing tubing head, be not easy to forging, structure haves much room for improvement.

Model utility content

The purpose of this utility model is to provide a kind of tubing head, and it is rational in infrastructure, is convenient to forging.

For achieving the above object, the technical solution of the utility model is a kind of tubing head of design,

Comprising overall is columniform forging main body;

Described forging main body is provided with axially through through hole,

Described through hole entirety is cylindrical, and the heart coaxial with forging main body;

The inner circle wall of described through hole is provided with the bulge loop of the heart coaxial with it;

The axial two ends of described bulge loop, they and through hole inner circle wall are by chamfering structure transition;

Described forging main body, the axially end face at two ends, be extended with the flange of the coaxial heart with through hole respectively,

One of them flange and forging main body periphery wall pass through chamfering structure transition,

Another flange and forging main body periphery wall are by ledge structure transition;

The axial both ends open of described through hole, they and above-mentioned forging main body end face are by chamfering structure transition.

Preferably, the axial length of described bulge loop is 1/6 ~ 1/5 of through hole axial length.

Advantage of the present utility model and beneficial effect are: provide a kind of tubing head, it is rational in infrastructure, are convenient to forging.

Accompanying drawing explanation

Fig. 1 is schematic diagram of the present utility model.

Embodiment

Below in conjunction with drawings and Examples, embodiment of the present utility model is further described.Following examples only for clearly the technical solution of the utility model being described, and can not limit protection domain of the present utility model with this.

The technological scheme that the utility model is specifically implemented is:

As shown in Figure 1, a kind of tubing head,

Comprising overall is columniform forging main body 1;

Described forging main body 1 is provided with axially through through hole 2,

Described through hole 2 entirety is cylindrical, and the heart coaxial with forging main body 1;

The inner circle wall of described through hole 2 is provided with the bulge loop 3 of the heart coaxial with it;

The axial two ends of described bulge loop 3, they and through hole 2 inner circle wall are by chamfering structure transition;

Described forging main body 1, the axially end face at two ends, be extended with the flange with the coaxial heart of through hole 2 respectively,

One of them flange 41 passes through chamfering structure transition with forging main body 1 periphery wall,

Another flange 42 and forging main body 1 periphery wall are by ledge structure 5 transition;

The axial both ends open of described through hole 2, they and above-mentioned forging main body 1 end face are by chamfering structure transition.

The axial length of described bulge loop 3 is 1/6 ~ 1/5 of through hole 2 axial length.

The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims (2)

1. tubing head, is characterized in that:

Comprising overall is columniform forging main body;

Described forging main body is provided with axially through through hole,

Described through hole entirety is cylindrical, and the heart coaxial with forging main body;

The inner circle wall of described through hole is provided with the bulge loop of the heart coaxial with it;

The axial two ends of described bulge loop, they and through hole inner circle wall are by chamfering structure transition;

Described forging main body, the axially end face at two ends, be extended with the flange of the coaxial heart with through hole respectively,

One of them flange and forging main body periphery wall pass through chamfering structure transition,

Another flange and forging main body periphery wall are by ledge structure transition;

The axial both ends open of described through hole, they and above-mentioned forging main body end face are by chamfering structure transition.

2. tubing head according to claim 1, is characterized in that, the axial length of described bulge loop, is 1/6 ~ 1/5 of through hole axial length.