CN206130349U

CN206130349U - Novel hard tube structure is connected to sealed withholding of conical surface

Info

Publication number: CN206130349U
Application number: CN201620919871.8U
Authority: CN
Inventors: 汪伟良; 陈力; 秦品维; 杨皓然; 龚宾华
Original assignee: Zhejiang Asia Pacific Mechanical and Electronic Co Ltd
Current assignee: Zhejiang Asia Pacific Mechanical and Electronic Co Ltd
Priority date: 2016-08-22
Filing date: 2016-08-22
Publication date: 2017-04-26
Anticipated expiration: 2026-08-22

Abstract

The utility model discloses a novel hard tube structure is connected to sealed withholding of conical surface. The hard tube tip is the protruding shape of the outband conical surface, then will in the hard tube is impressed and is had in the metal joint of recess of the conical surface, reach the purpose of the tight hard tube in top through metal material's the deformation all around of metal joint inner wall own, the outer peripheral face that the hard tube tip is close to the terminal surface is equipped with the outer arch of annular, for conical surface transition between outer arch of annular and the terminal surface, metal connection end section terminal surface open have be used for with hard tube tip complex counter bore, through conical surface transition between the main aspects of counter bore and the tip. This practical novel hard tube structure is connected to sealed withholding of conical surface has replaced the sealed connection mode of screw thread, the bolt conical surface of present use, and on the cost is reduced's basis, the structure is compacter, and processing technology has also avoided the moment of screwing up that needs key control among the threaded connection.

Description

Connection hard tube structure is withheld in a kind of novel conical surface sealing

Technical field

This utility model relate to a kind of novel conical surface sealing and withhold connection hard tube structure.

Background technology

In hydraulic system, hard tube and being tightly connected for metal joint are one of main types of attachment, are mainly adopted at present It is connected and sealed with the pattern of screw thread, bolt.But there is complex structure, relatively costly and connection procedure in this kind of connected mode In the problems such as need priority control screw-down torque.

Utility model content

In order to solve problem present in background technology, this utility model provides a kind of sealing of novel conical surface and withholds connection Hard tube structure, makes hard tube link together with metal joint by the material deformation force of metal joint itself, and by mutual Cone match is formed and is tightly connected.

To solve above-mentioned technical problem, this utility model is adopted the following technical scheme that：

This utility model includes hard tube and metal joint, and hard tube end is the convex shape with male cone (strobilus masculinus), then will be described Hard tube press-in with inner conical surface groove metal joint in, by the deformation of metal joint inwall surrounding metal material itself come The purpose for holding out against hard tube is reached, so that hard tube is formed with metal joint being tightly connected.

Described hard tube end is provided with annular outer and rises near the outer peripheral face of end face, and annular outer is risen and end face between as cone Face transition.

Described metal joint end end face is provided with the counterbore for coordinating with hard tube end, the big end of counterbore and small end it Between by conical surface transition, the taper-face contact of hard tube is pressed on the conical surface of counterbore, and hard tube annular outer rises and is squeezed in the big end of counterbore Inwall between the conical surface.

Described hard tube is metal material.

Described metal joint is metal material, 20# materials can be preferably adopted, by machine add-on type.

The beneficial effects of the utility model are：

This utility model conical surface seal withholds connection hard tube structure and instead of screw thread, the bolt conical surface seal connection for using at present Knot mode, the energy effectively solving hard tube problem complicated with metal joint attachment structure, due to eliminating screw thread, bolt arrangement, section The cost of bolt is saved.

This utility model sealing reliability, on the basis of cost is reduced, structure is compacter, and processing technique is also avoided The screw-down torque of priority control is needed in threaded connection, the requirement that hard tube space move towards to arrange is advantageously reduced, while processing Process is simple, eliminates the priority control to screw-down torque.

Description of the drawings

Fig. 1 is structural representation of the present utility model.

Fig. 2 is this utility model hard tube molding structure schematic diagram.

Fig. 3 is this utility model metal joint structural representation.

In figure：1st, hard tube, 2, metal joint.

Specific embodiment

Below in conjunction with the accompanying drawings and specific embodiment is described in further detail to this utility model.

As shown in figure 1, this utility model includes hard tube 1 and metal joint 2, the end of hard tube 1 is the convex shaped with male cone (strobilus masculinus) Shape, is then pressed into the hard tube 1 in the metal joint 2 of the groove with inner conical surface, by the inwall surrounding of metal joint 2 itself The deformation of metal material is reaching the purpose for holding out against hard tube 1, so that hard tube 1 is tightly connected with the formation of metal joint 2.

As shown in Fig. 2 the end of hard tube 1 near the outer peripheral face of end face be provided with annular outer rise, annular outer rise and end face it Between be conical surface transition.As shown in figure 3, the end end face of metal joint 2 is provided with the counterbore for coordinating with the end of hard tube 1, counterbore It is pressed on the conical surface of counterbore by conical surface transition, the taper-face contact of hard tube 1 between big end and small end, the annular outer of hard tube 1 rises The inwall being squeezed between the big end of counterbore and the conical surface.

Metal joint 2 is made by crimping equipment after the conical surface of the good hard tube 1 of machine-shaping and metal joint 2 is mutually fitted The metal material deformation of end, so as to hold out against hard tube 1, makes hard tube 1 to rotate and be tightly connected.

Processing and forming technology process of the present utility model is：

Fig. 2 states are processed into into certain outer cone face angle in end by the hard tube 1 of straight tube state by pipe end forming equipment The shape of degree.Metal joint 2 is processed into by shape of Fig. 3 states with certain inner conical surface angle by process for machining.

Then the male cone (strobilus masculinus) of hard tube 1 is fitted with the inner conical surface of metal joint 2, by crimping equipment, is made in metal joint 2 The metal material of conical surface surrounding is toward central reduction, such as Fig. 1 states.Top is reached by the metal material deformation force of metal joint 2 Tight hard tube 1, so that two conical surfaces are brought into close contact realization being tightly connected.

This utility model conical surface seal withholds connection hard tube structure, can effectively solving hard tube 1 and the attachment structure of metal joint 2 Complicated problem, sealing reliability, compact conformation advantageously reduces the requirement that hard tube space is moved towards to arrange, while processing technique Simply, the priority control to screw-down torque is eliminated.

Claims

1. connection hard tube structure is withheld in a kind of novel conical surface sealing, it is characterised in that：Hard tube (1) end is the projection with male cone (strobilus masculinus) Shape, it is then that the metal joint (2) of the hard tube (1) groove of the press-in with inner conical surface is interior, by metal joint (2) inwall The deformation of surrounding metal material itself reaching the purpose for holding out against hard tube (1) so that hard tube (1) is withheld with metal joint (2) Formation is tightly connected；

Described hard tube (1) end is provided with annular outer and rises near the outer peripheral face of end face, and annular outer is risen and end face between as cone Face transition；

Described metal joint (2) end end face is provided with the counterbore for coordinating with hard tube (1) end, the big end of counterbore and small end Between by conical surface transition, the taper-face contact of hard tube (1) is pressed on the conical surface of counterbore, and hard tube (1) annular outer rises and is squeezed in Inwall between the big end of counterbore and the conical surface.

2. connection hard tube structure is withheld in a kind of novel conical surface sealing according to claim 1, it is characterised in that：Described is hard Pipe (1) is metal material.

3. connection hard tube structure is withheld in a kind of novel conical surface sealing according to claim 1, it is characterised in that：Described gold Category joint (2) is metal material.