CN202484493U

CN202484493U - Mechanical buckling assembled type metal hose

Info

Publication number: CN202484493U
Application number: CN2012200426265U
Authority: CN
Inventors: 史广新
Original assignee: TIANJIN WIDE METAL HOSE CO Ltd
Current assignee: TIANJIN WIDE METAL HOSE CO Ltd
Priority date: 2012-02-10
Filing date: 2012-02-10
Publication date: 2012-10-10
Anticipated expiration: 2022-02-10

Abstract

The utility model belongs to an accessory in an industrial pipeline system, and provides a mechanical buckling assembled type metal hose aiming to overcome a complex welding hot stress and improve the service life. The mechanical buckling assembled type metal hose consists of a metal corrugated pipe, a woven wire cloth casing pipe, a connection joint and a buckling clamp sleeve; the metal corrugated pipe and the connection joint use a micro-beam plasma precise autogenous welding manner; and the woven wire cloth casing pipe, the connection joint and the buckling clamp sleeve are assembled and connected by using a hydraulic reducing machine. With the adoption of a novel structure combining micro-beam plasma precise autogenous welding and mechanical buckling, the technical difficult problem that the mechanical buckling assembled type metal hose has both rigidity and pressure-bearing property is solved. The pressure-bearing property and the anti-fatigue service life of the metal hose can be greatly improved on the premise of ensuring the own rigidity of the product, so that the security is improved, and the service life is prolonged. The mechanical buckling assembled type metal hose has the advantages of simple structure and low manufacturing cost, is popularized by users, and has obvious economical and social benefits.

Description

Mechanical clasps is pressed the assembling type metallic hose

Technical field: the utility model belongs to a kind of annex in the industrial pipeline system.It is specifically related to the structure that mechanical clasps is pressed the assembling type metallic hose.

Background technique: along with the development of modern industrial technology, every field all be unable to do without uses pipe-line system to transmit gas or liquid substance, wherein also include high temperature, high pressure.The overwhelming majority is all used hard tube in pipe-line system, but must connect with flexible pipe at some concrete environment and special needs, therefore just develops the industrial products that various metallic hoses.Because its core component bellows is to adopt the Austenitic Stainless Steel manufacturing, therefore have good heatproof, withstand voltage, crooked flexible, in light weight, be convenient to advantage such as connection.Metallic hose is applied in multiple fields such as petrochemical industry, machine-building, electric power, thermal technology, iron and steel, building, shipbuilding, space flight and aviation widely.High speed development along with the modernization of industry; In some key areas to flexible pipe require increasingly high; Not only require product to have good toughness, also require simultaneously to bear higher working pressure and moment overload pressure, the use to product requires also increasingly high fatigue life in addition.The applicant has produced a large amount of products having done a lot of researchs and improvement aspect the ripple type metallic hose, has satisfied industrial needs.As in 200920098211.8,201120094180.6 patents, disclosing more satisfactory product structure; Also constantly find the defective of existence along with a large amount of uses; In existing technology, take welding procedure that each part is interconnected usually; The reliability of sealing technique has improved, but since multiple welding, the working life that the welding heat stress that its high temperature produces has reduced product; Increased the potential safety hazard of whole pipe-line system, so the thermal stress issues of the complicacy of multiple welding generation must overcome.

Summary of the invention: the purpose of the utility model is the special this programme that proposes of thermal stress issues---the mechanical clasps pressure assembling type metallic hose that in assurance self toughness, overcomes the complicacy of multiple welding generation for the solution metallic hose; It has adopted new structure and technology; Solved product and had toughness and pressure-bearing property simultaneously, solved complicated thermal stress and prolonged product working life.

By as above design; The mechanical clasps that this programme proposed is pressed the assembling type metallic hose; It includes the jointing (3) at metal bellows (1), woven wire cloth sleeve pipe (2), two ends; Metal bellows and jointing are welded to connect, and it is characterized in that it withholds cutting ferrule (4) the metal wire knitted net is fixedly connected with jointing with compressing two.

Adopt this programme can embody following superiority: 1. when guaranteeing product self toughness; Except adopting the microplasma precision from the fusion welding mode in the welding part; Removed multiple welding from; Use the cold working mode of mechanical pressure, reduced complicated thermal stress, improved working life; 2. the outside woven wire cloth sleeve pipe of wavy metal has used hydraulic clamp equipment to make and has withheld the cutting ferrule undergauge; The woven wire cloth sleeve pipe is fixedly connected with jointing; The welding stress corrosion of having avoided big electric current welding that product itself is caused; Improve the working life of product, also reduced processing cost; 3. the product of this programme is through the proof of observing on probation, and it has the bearing capacity that when guaranteeing product self toughness, improves product, improve security of products, prolong the working life of product, simple in structure, advantage that cost is low, receives user's favorable comment deeply.

Description of drawings: Fig. 1 is that mechanical clasps press-fits the structural representation of joining metallic hose.

Fig. 2 is a structural representation of withholding the cutting ferrule part.

Embodiment: this programme is for reducing thermal stress and improving working life and design.Mechanical clasps press the assembling type metallic hose by metal bellows 1, woven wire cloth sleeve pipe 2, jointing 3, withhold 4 of cutting ferrules and form.The metal bellows 1 of this assembly metallic hose adopts the microplasma precisions from the fusion welding mode with jointing 3, and the assembly after the welding and metal wire knitted net 2 will be withheld cutting ferrule, woven wire cloth sleeve pipe and jointing compression fit and be connected through withholding the large tonnage hydraulic pressure size reducing machine of cutting ferrule 4 usefulness.In this programme, the structure of withholding cutting ferrule is very crucial, and the internal surface of withholding cutting ferrule is processed into the ring-type lines, increases the fastening force of product.The effect of this part is to be pressed together withholding sleeve pipe, wire netting sleeve pipe and jointing, and metal knitted net pipe has protective action to bellows, has strengthened the bearing capacity of metallic hose product.

With the increase of fed sheet of a media pressure in the pipe, the metallic hose product also has good toughness when guaranteeing load performance during proper functioning.The product of this programme is through probationary certificate: it has bearing capacity, whole soft highly, and simple in structure, cost is not high, and a large amount of production has economic effect significantly.

Claims

1. mechanical clasps is pressed the assembling type metallic hose; It includes the jointing (3) at metal bellows (1), woven wire cloth sleeve pipe (2), two ends; Metal bellows and jointing are welded to connect, and it is characterized in that it withholds cutting ferrule (4) the woven wire cloth sleeve pipe is fixedly connected with jointing with compressing two.