CN2055892U

CN2055892U - Ring-shaped tooth clamp sleeve connector

Info

Publication number: CN2055892U
Application number: CN 89215576
Authority: CN
Inventors: 欧敬亭
Original assignee: OU JING TING
Current assignee: OU JING TING
Priority date: 1989-08-29
Filing date: 1989-08-29
Publication date: 1990-04-11

Abstract

The utility model discloses an annular tooth clamping sleeve pipe connector which is used for connecting and reliably sealing metal pipes and comprises a connector body, a clamping sleeve and a nut. The full inner wall of the clamping sleeve is uniformly provided with identical annular teeth sheathed on the interface end of a connected pipe and installed on the concave platform at the inner side of the interface of the connector body together with the connected pipe. The nut sheathed on the connected pipe is matched with the male screw on the outer side of the interface of the connector body, presses the conical surface of the outer margin of the clamp sleeve to form face contact seal with the conical surface of the inner side of the interface of the connector body and enables the annular teeth on the inner wall of the clamping sleeve to insert into the outer wall of the connected pipe to form multichannel sealing. The utility model has the advantages of simple structure, convenient processing and maintenance and good tightness.

Description

Ring-shaped tooth clamp sleeve connector

The utility model relates to a kind of Bite type fittings of connecting metal pipe element and making it reliable sealing of being used to.

Pipe joint is a kind of interface unit that connects metal pipe element and make it reliable sealing, at mechanical field, has a wide range of applications in the hydraulic transmission pipeline system of hydraulic equipment especially, is taken over the footpath and is ∮ 4-∮ 42mm, and nominal pressure is 160-320Kg/cm.The basic structure form of pipe joint has three kinds, i.e. flared type, welding type and FERRULETYPE.Bite type fittings mainly is made up of fittings body, cutting ferrule and three basic parts of nut, and the fittings body interface is inboard for the conical surface and have and be used to install the concave station of being taken over, and the interface outside has and is sleeved on the external screw thread that is matched by the nut in the adapter; Cutting ferrule be have cutting edge on the end inwall, outer rim is the metal ring of the conical surface, the afterbody of cutting ferrule is 86 ° of conical surfaces, is sleeved on to be taken over interface end and together with being taken on the concave station that is installed in fittings body interface inboard; Nut one end is 90 ° of conical surfaces, be sleeved on being gone up by taking over and matching of cutting ferrule afterbody inner end with the external screw thread in the fittings body interface outside, during fastening nut, 86 ° of conical surfaces of 90 ° of conical surfaces of nut and cutting ferrule afterbody contact, and the compressing cutting ferrule one end outer rim conical surface and the fittings body interface inboard conical surface form face contact seal and make the cutting edge incision on the cutting ferrule inwall be taken over outer wall formation sealing.This Bite type fittings is not only processed relatively difficulty of cutting ferrule cutting edge, and its sealability reduces greatly after repeatedly loading and unloading, and its working life is shorter.

The purpose of this utility model is a kind of simple in structure, processing of design and easy to maintenance, the reliable Bite type fittings of sealability.

To achieve these goals, the utility model evenly has identical annular tooth on cutting ferrule inwall total length.Be described in further detail below in conjunction with the technical characteristics of specific embodiment the utility model annular tooth cutting ferrule pipe joint.

Accompanying drawing 1 is the structural representation of annular tooth cutting ferrule pipe joint;

Accompanying drawing 2 is the annular tooth sectional view.

With reference to the accompanying drawings 1 and 2, the utility model annular tooth cutting ferrule pipe joint still is made of fittings body 1, cutting ferrule 2 and nut 3.The interface of fittings body 1 is inboard for the conical surface and have and be used to install the concave station of being taken over, and the interface outside has and is sleeved on the external screw thread that is matched by the nut 3 in the adapter 4.Cutting ferrule 2 is a metal ring, the conical surface of an end outer rim for matching with the inboard conical surface of fittings body interface, and afterbody is 86 ° of conical surfaces.Evenly have identical annular tooth 5 on the cutting ferrule inwall total length, annular tooth top internal diameter should be greater than being taken over external diameter 0.10-0.20mm; Addendum angle is 50-70 °, and the optimal teeth drift angle is 60 °, and crown is sharp keen; Space width is 0.45-0.75mm.Cutting ferrule 2 is sleeved on by adapter 4 interface end and together with being taken on the concave station that is installed in fittings body interface inboard.Nut 3 one ends are 90 ° of conical surfaces, are sleeved on being taken on 4 and with the external screw thread in the fittings body 1 interface outside of cutting ferrule 2 afterbody inner ends and match.During fastening nut 3,90 ° of conical surfaces of nut 3 contact with 86 ° of conical surfaces of cutting ferrule 2 afterbodys, oppress the inboard conical surface of the cutting ferrule 2 one end outer rim conical surfaces and fittings body 1 interface and form face contact seal and make annular tooth 5 incisions on cutting ferrule 2 inwalls be formed multiple-sealed by adapter 4 outer walls.

The utility model is simple in structure, and processing and maintenance are all very convenient, and sealing property is reliable, can be widely used as the pipe fitting joint of various occasions.

Claims

1, a kind of Bite type fittings of connecting metal tube and making it reliable sealing of being used to is made of fittings body, cutting ferrule and nut; The interface of described fittings body is inboard for the conical surface and have and be used to install the concave station of being taken over, the interface outside has and is sleeved on the external screw thread that is matched by the nut on taking over, described cutting ferrule is to have cutting edge on the end inwall, outer rim is the metal ring of the conical surface, afterbody is 86 ° of conical surfaces, be sleeved on by the adapter interface end and together with being taken on the concave station that is installed in fittings body interface inboard, described nut one end is 90 ° of conical surfaces, be sleeved on being gone up by taking over and matching of cutting ferrule afterbody inner end with the external screw thread in the fittings body interface outside, during fastening nut, 86 ° of conical surfaces of 90 ° of conical surfaces of nut and cutting ferrule afterbody contact, and the compressing cutting ferrule one end outer rim conical surface and the fittings body interface inboard conical surface form face contact seal and make the cutting edge incision on the cutting ferrule inwall be taken over outer wall formation sealing; Feature of the present utility model is evenly to have identical annular tooth on described cutting ferrule inwall total length, and annular tooth top internal diameter is greater than being taken over external diameter 0.10-0.20mm, and addendum angle is 50-70 °, and crown is sharp keen, space width is 0.45-0.75mm.

2, Bite type fittings according to claim 1 is characterized in that the annular tooth tooth angle on the described cutting ferrule inwall total length is 60 °.