CN202510871U

CN202510871U - Cutting ferrule joint

Info

Publication number: CN202510871U
Application number: CN201220150518XU
Authority: CN
Inventors: 罗纲
Original assignee: EAGLE FLUID TECHNOLOGY (JIAXING) Co Ltd
Current assignee: EAGLE FLUID TECHNOLOGY (JIAXING) Co Ltd
Priority date: 2012-04-11
Filing date: 2012-04-11
Publication date: 2012-10-31
Anticipated expiration: 2022-04-11

Abstract

The utility model relates to the technical field of low-pressure pipe joints, in particular to a cutting ferrule joint. The cutting ferrule joint is arranged on a steel pipe and is characterized by comprising a joint body, a cutting ferrule and a nut, wherein the joint body is tubular; one end of the joint body is sheathed outside the steel pipe; the inner surface of the port of the joint body is provided with a first inclined plane; a second inclined plane, a front tooth and a rear tooth are arranged on the cutting ferrule; the cutting ferrule is sheathed on the steel pipe and is arranged between the joint body and the nut; and the nut is mutually connected with the joint body. In order to solve the problem that the leakage is caused by non-standard operations and tiny defects of a pipe fitting, the utility model provides the cutting ferrule joint which is simple in structure and operation.

Description

A kind of cutting ferrule joint

Technical field

The utility model relates to low-voltage tube joint technical field, specifically a kind of cutting ferrule joint.

Background technique

Bite type fittings utilization in the market very extensively; But no matter be single deck tape-recorder nested structure or two cutting ferrule structure, all operation and pipe fitting had higher requirement, and; Bite type fittings on the market basically all is to adopt two cutting ferrule structures now; Cost is higher, and cutting ferrule also needs heat treatment, the technology more complicated.

The model utility content

The utility model is for providing cutting ferrule joint a kind of simple in structure, simple to operate, solved the problem of the leakage that the reasons such as little defective because of operation lack of standardization and pipe fitting cause.

The utility model is realized through following technical proposals:

A kind of cutting ferrule joint is installed on the steel pipe, comprises fittings body, cutting ferrule and nut; Said fittings body in a tubular form, it is outside that said fittings body one end is placed in said steel pipe, said fittings body port internal surface place is provided with first inclined-plane; Said cutting ferrule is provided with second inclined-plane, nipper and back tooth; Said cutting ferrule is sleeved on the said steel pipe, and is located between said fittings body and the nut, and said nut is connected with said fittings body.

Said cutting ferrule is provided with step, is provided with first seal ring between said fittings body end face and the said step.

Be provided with second seal ring between said cutting ferrule end face and the said nut.

Said fittings body outer surface is provided with outside thread, and said nut internal surface is provided with internal thread, and said outside thread matches with said internal thread.

The beneficial effect that the utility model brought is:

In the utility model, said cutting ferrule joint has the following advantages: 1, the two relatively cutting ferrule structures of structure are simpler, no longer need heat treatment, and then reduced cost; 2, not enough for moment of torsion, twist the not in place and leakage that causes has obtained effective solution; 3, the requirement for pipe fitting reduces greatly, and some sizes are less than normal relatively, and the surface has the pipe fitting of damaging for a short time also can use; 4, do not polish whole steel pipe for preparatory attachment face and do not influence installation yet; 5, the requirement of steel pipe end face and axis verticality also can reduce.

Description of drawings

Below in conjunction with accompanying drawing the utility model is done further explain.

Fig. 1 compresses preceding sectional drawing for the said cutting ferrule joint of the utility model.

Fig. 2 is the sectional drawing after the said cutting ferrule joint of the utility model compresses.

Fig. 3 is the sectional drawing of the said cutting ferrule of the utility model.

The label that component names is corresponding among the figure is following:

1, steel pipe; 2, fittings body; 3, cutting ferrule; 4, nut; 5, first inclined-plane; 6, second inclined-plane; 7, nipper; 8, back tooth; 9, step; 10, first seal ring; 11, second seal ring.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is done further to detail:

As the embodiment of the said cutting ferrule joint of the utility model,, be installed on the steel pipe 1 like Fig. 1, Fig. 2 and shown in Figure 3; Comprise fittings body 2, cutting ferrule 3 and nut 4; Said fittings body 2 in a tubular form, said fittings body 2 one ends are placed in said steel pipe 1 outside, said fittings body 2 port internal surface places are provided with first inclined-plane 5; Said cutting ferrule 3 is provided with second inclined-plane 6, nipper 7 and back tooth 8; Said cutting ferrule 3 is sleeved on the said steel pipe 1, and is located between said fittings body 2 and the nut 4, and said nut 4 is connected with said fittings body 2.

In the present embodiment, said cutting ferrule 3 is provided with step 9, is provided with first seal ring 10 between said fittings body 2 end faces and the said step 9.

In the present embodiment, be provided with second seal ring 11 between said cutting ferrule 3 end faces and the said nut 4.

In the present embodiment, said fittings body 2 outer surfaces are provided with outside thread, and said nut 4 internal surfaces are provided with internal thread, and said outside thread matches with said internal thread.

When turning nut 4, said nut 4 extruding second seal ring 11 forms back-end sealing, leaks even guarantee cutting ferrule 3, and medium can not spill from the rear end yet; Continue fastening nut 4, extruding cutting ferrule 3 is pushed ahead it; This moment, first inclined-plane 5 and second inclined-plane 6 fitted, and until compressing distortion, formed face seal; Said nipper 7 promptly steel pipe 1 forms sealing gradually, and said tooth 8 is afterwards held the also fixing seat of cutting ferrule 3 of steel pipe 1 tightly; Last locking nut 4 makes cutting ferrule 3 further hold steel pipe 1 tightly, and said first seal ring 10 compresses fully, forms sealing together, prevents the sealing failure between first inclined-plane 5 and second inclined-plane 6, and medium leaks from front end.

Claims

1. a cutting ferrule joint is installed on the steel pipe, it is characterized in that comprising fittings body, cutting ferrule and nut; Said fittings body in a tubular form, it is outside that said fittings body one end is placed in said steel pipe, said fittings body port internal surface place is provided with first inclined-plane; Said cutting ferrule is provided with second inclined-plane, nipper and back tooth; Said cutting ferrule is sleeved on the said steel pipe, and is located between said fittings body and the nut, and said nut is connected with said fittings body.

2. cutting ferrule joint as claimed in claim 1 is characterized in that said cutting ferrule is provided with step, is provided with first seal ring between said fittings body end face and the said step.

3. cutting ferrule joint as claimed in claim 2 is characterized in that being provided with second seal ring between said cutting ferrule end face and the said nut.

4. cutting ferrule joint as claimed in claim 3 is characterized in that said fittings body outer surface is provided with outside thread, and said nut internal surface is provided with internal thread, and said outside thread matches with said internal thread.