CN2064698U

CN2064698U - Joint fixing device by fusion welding for helical corrugated metal hose

Info

Publication number: CN2064698U
Application number: CN 90207103
Authority: CN
Inventors: 常劲松
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-04-03
Filing date: 1990-04-03
Publication date: 1990-10-31

Abstract

The utility model provides a spiral wave metal soft pipe melting welding fixing device and is composed of a sleeve ring, a stopping sleeve, a screw connecting head and a sealing connecting head. One end of the screw connecting head is provided with a melting welding ring and the rim edge of the melting welding ring is provided with a melting welding edge. The melting welding edge is fixed by the melting and welding after the melting welding edge is connected with the spiral wave pipe subtracting the three crotch gap of the pipe port end surface. The sleeve ring, a locking ring and the stopping sleeve form the two times locking for the metal wire net of the outer sleeve of the metal soft pipe. The spiral connecting head and the sealing connecting head is fixed by the melting and welding after being welded with each other. Therefore, the braze welding is avoided and a good deal of metal materials such as the silver and cadmium are saved. The carrying capacity of the connecting heads is enhanced and the spiral wave metal soft pipe melting welding fixing device can be widely used for the modern engineering field.

Description

Joint fixing device by fusion welding for helical corrugated metal hose

The utility model relates to a kind of metal hose fastemer, particularly a kind of helical corrugation metal hose fusion welding fixing apparatus without soldering.

Existing is that the connection of the metal hose joint of body normally adopts silver-colored cadmium solder or the ag-cu solder soldering of silver content 40%-45% to form with the helical bellows.This not only will expend a large amount of precious metal materials, and since during welding high temperature reduced the intensity of its outsourcing wire sets, make the hose coupling place become the weak link of carrying.As soldering being made into the words of melting welding, though can avoid the above-mentioned deficiency of soldering, cause easily that because of fracture slit, helical bellows mouth of pipe end face junctions is difficult to fusion problem and its outsourcing wire sets of connecing the Gu Chu leakage shrink the deficiency that forms dry joint because of the welding heat effect.

The purpose of this utility model is that a kind of helical corrugation metal hose fusion welding fixing apparatus without soldering will be provided, it adopts the method for wiping out the fracture slit melting welding of helical bellows mouth of pipe end face junctions and increases the kalamein silk screen is implemented the fastening locking device in two roads, solved effectively at present and realized that without soldering metal hose connects a solid difficult problem, reached the effect of saving precious metal material and improving metal hose intensity.

Fig. 1 is the utility model structure diagram.

Fig. 2 is the utility model nipple structural map.

Fig. 3 is fracture slit, a helical bellows mouth of pipe end face junctions schematic diagram.

Fig. 4 is helical bellows mouth of pipe end face valgus part schematic diagram of cutting off behind the junctions fracture slit.

How introduce in detail the purpose of this utility model below in conjunction with accompanying drawing realizes.

As shown in Figure 1, the utility model device mainly comprises the collar 4, cutting ferrule 5, nipple 6, seal nipple 8, and the nipple 6 that it is characterized in that it is made of a hollow cylindrical body, and the one end has melting welding ring 11, retaining ring 12.Wherein, the edge of melting welding ring 11 has a melting welding along 10; There is the retaining mechanism of a helical bellows woven wire 3 that is made of retaining ring 12 and the collar 4, cutting ferrule 5, the seal nipple 8 that are enclosed within its outside nipple 6 outers.Wherein the internal diameter of the collar 4 should be bigger slightly and slightly littler than the external diameter of retaining ring 12 than the external diameter of nipple 6.

The utility model device and being connected of helical corrugation metal hose 1 be melting welding by nipple 6 ends behind 10 location, the method that adopts melting welding with it with melting welding along 10, the junction of melting welding ring 11 is fused into ring-type melting welding 2 and realizes firmly connection.In order to eliminate the issuable leakage problem in helical corrugation metal hose slit, 1 mouth of pipe end face junctions that is difficult for fusion, slit, junctions 13 shown in Fig. 3 can be cut off outer translate among Fig. 4 the dotted line shown in 14 partly cut except that And through smooth, make it and melting welding carry out the melting welding operation again along 10, after the melting welding ring 11 identical appropriatenesses.

The utility model device and being connected of helical corrugation flexible pipe kalamein silk screen 3 be nipple 6 outers are passed in its end the collar 4 Nei Quan And to its outer ring upset, the twice locking that is made of with retaining ring 12, cutting ferrule 5 respectively the collar 4 realizes.Its coupling mechanism force is produced by seal nipple 8 compressing cutting ferrules 5.For preventing to lock the phenomenon that gets loose of back woven wire 3, when mounted also can be by the construction bolt 9 that matches with nipple 6 inside threads, after forcing seal nipple 8 to be close to cutting ferrule 5 realization location after tightening, adopt the method for fusion welding again, on nipple 6, form ring-type melting welding 7 at seal nipple 8 and fixed.At this moment can screw out construction bolt 9, and metal net 3 fuses with the utility model still because of being locked.

The utility model is connected with the helical corrugation metal hose, adopts and to wipe out the method for turning up and carry out the melting welding operation again after smooth in slit, mouth of pipe end face junctions, has solved the difficult problem in the present helical bellows melting welding effectively.The utility model compared with prior art, only melting welding commonly used at present, the twice operation of soldering have just been substituted with the melting welding of twice ring-type, simplified technology, and fully need not silver-colored cadmium, material such as silver-bearing copper, save precious metals such as silver-colored cadmium greatly, also strengthened the bearing capacity of helical corrugation metal hose joint.Simultaneously,, also strengthened its corrosive power that supports, its range of application is enlarged greatly because melting welding makes hose coupling keep the unanimity of material.In actual job, also because of having exempted the cleaning of brazing operation front and back, loaded down with trivial details steps such as polishing have improved work efficiency.The utility model can be widely used in modern project technical fields such as machine-building, petrochemical industry, instrument and meter, space flight and aviation, nuclear energy shipbuilding.

An embodiment is provided below.

Adopt φ 22 stainless steel tubes to make φ 15 nipples by aforementioned structure.Adopt the collar of internal diameter φ 20, the cutting ferrule of internal diameter φ 24.5, make seal nipple of the present utility model, by preceding method the helical corrugation flexible pipe of φ 15 is carried out fusion welding and consolidate with the stainless steel of external diameter φ 30.Operation is simple during enforcement, processing ease.Through practical measurement, helical bellows is connect solid data be better than existing soldering standard.

Claims

1, a kind of helical corrugation metal hose fusion welding fixing apparatus, comprise the collar, cutting ferrule, seal nipple, the nipple 6 that it is characterized in that it is made of a hollow cylindrical body, the one end has melting welding ring 11, retaining ring 12, melting welding ring 11 edges have melting welding along 10, and retaining ring 12 constitutes a retaining mechanism with the collar 4 that is enclosed within its adjacent side, cutting ferrule 5, seal nipple 8.

2, helical corrugation metal hose fastemer as claimed in claim 1, it is characterized in that it and being connected of helical corrugation metal hose 1 be melting welding by its nipple 6 ends along 10, the ring-type melting welding 2 of melting welding ring 11 realizes.

3, helical corrugation metal hose fastemer as claimed in claim 1, it is characterized in that it and being connected of helical corrugation flexible pipe kalamein silk screen 3 are to lock with the twice of retaining ring 12, cutting ferrule 5 formations respectively by the collar 4 of its nipple 6 outers to realize, described cutting ferrule 5 is fixed by the welding nipple 6 and the ring-type welding 7 of seal nipple 8 after locating by seal nipple 8 and with construction bolt 9 tensions that nipple 6 end thread match.

4, as claim 1,2 or 3 described helical corrugation metal hose fastemers, it is characterized in that helical corrugation metal hose that it connects must by wipe out its slit, mouth of pipe end face junctions 13 turn up 14 And partly through the melting welding of smooth back and its nipple 6 along 10, the 11 realization melting welding of melting welding ring are connected.