CN2937739Y - Non-welding joint metal hose - Google Patents
Non-welding joint metal hose Download PDFInfo
- Publication number
- CN2937739Y CN2937739Y CN 200620075333 CN200620075333U CN2937739Y CN 2937739 Y CN2937739 Y CN 2937739Y CN 200620075333 CN200620075333 CN 200620075333 CN 200620075333 U CN200620075333 U CN 200620075333U CN 2937739 Y CN2937739 Y CN 2937739Y
- Authority
- CN
- China
- Prior art keywords
- joint
- stainless steel
- napex
- metal hose
- connection tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model relates to a non-welded joint metal hose used for the fluid medium pipeline, which is characterized in that: a neck connection tube is arranged between a joint and a pipe body; the two ends of the stainless steel ripple tube are smooth pipe, the smooth pipe is inserted into an inner hole of the neck connection tube, moreover, an outside flanging of the end head are nipped between the joint and the head face of the neck connection tube, then installing a sealing gasket, at last, all the parts mentioned above are connected with each other by a fastening piece; the stainless steel web cover is nipped closely in a ring groove of an external surface of the neck connection tube by means of the fastening piece. When the utility is compared with the traditional welding structure, the invention has the advantages that the stress state of the component material is improved and the corrosion resistance is increased so as to prolong the service life of the products, moreover, a steady and reliable product quality can be ensured, and thus be applicable for mass production, therefore the production cost is reduced finally.
Description
Technical field
The utility model relate to be used for fluid-transporting tubing, based on the metallic hose of corrugated stainless steel tubing.
Background technique
Metallic hose is widely used in numerous industries such as military project, oil, chemical industry, electric power, metallurgy, printing and dyeing, papermaking and heating for residential area, building, be applicable to an end fixedly the other end need move, perhaps two ends all need the pipe-line system of the conveyance fluid medium that moves, must be able to bear elevated pressures, corrosion-resistant, anti-vibration.Metallic hose generally is made of corrugated stainless steel tubing, stainless steel net and joint, and joint then comprises inipple and flanged joint, and fixed and movable branch is arranged.Existing metallic hose be with the end face of bellows, net directly and joint integrally welded.The metallic hose force-bearing situation of this welded fitting is bad, because weld member shape is undergone mutation, bellows tube wall and joint thickness difference are big, cause that stress is concentrated, expanding with heat and contract with cold of welding zone produces extra heat stress in addition, the force-bearing situation of weld joint is worsened, and flexible pipe is in dynamically work down, bears alternating stress, just easier generation fatigue ruption of weld.This welding type metallic flexible pipe corrosion resistance is also bad, owing to produce excessive temperature in the welding, anticorrosive element such as Cr, Ni is partly burnt in the stainless steel, forms poor chromium, poor nickel district at weld heat-affected zone, is easy in the use be damaged by corrosion; And the weld joint is because coarse injustice, particularly the weld seam position of hose inner wall is very coarse, as carry Korrosionsmedium, then further aggravate the extent of corrosion of weld joint, the unavoidable defectives such as slag inclusion, pore, crackle that produce in the welding are arranged again, influence quality of product, therefore existing welding type metallic flexible pipe is short working life, quality is unreliable, the operating cost height.In addition, also there is the low obvious drawback of manufacturing efficiency in the welding type metallic flexible pipe for producing in batches.
The model utility content
The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art part, provide a kind of and can improve stress phase, strengthen corrosion resistance, improve the quality of products, increase the service life, and can obviously enhance productivity the weldless joint metal hose that reduces cost for producing in batches.
The technical solution of the utility model is: weldless joint metal hose, comprise body and joint, body is made of corrugated stainless steel tubing and stainless steel net, improvements are to be provided with napex to take between joint and body, the endoporus port that napex is taken over is an arc surface, and the two ends of described corrugated stainless steel tubing are light pipe, and this light pipe inserts napex and takes over endoporus, and the flanging of its end is clipped between the end face of joint and napex adapter, is coupled to one by fastening piece jointly; The outer surface that napex is taken over has circular groove, withholds ring in the groove, and the end clips of described stainless steel net is at circular groove and withhold between the ring.
Described fastening piece is the combination that has nut or the connecting plate and the bolt of check ring; There is seal washer the junction of described joint and flanging.
Metallic hose middle tube body of the present utility model and joint binding site are that flange is pressed into whole connecting structure, adopt the cold forming processing technology to replace traditional welding method, welded many defectives have been avoided, alleviate and eliminate stress and concentrate and the welding heat stress influence, the construction material stress phase is improved; Cr in binding site surfacing, the stainless steel material, Ni element are not damaged, and corrosion resistance is strong, thereby prolong flexible pipe working life.In the assembling processing of body and joint, the ring drum shaping of the withholding of net, corrugated tube end, flattening, cutting, flange are finished by specialized mould or cutter substep moment on hydraulic machine or machine tool, obviously improved manufacturing efficiency than single-piece welding processing, and can guarantee stable and reliable product quality, especially be fit to produce in batches, become instinct to reduce relatively.
Description of drawings
Fig. 1 is a nut jointing type weldless joint metal hose structural representation;
Fig. 2 is the local enlarged diagram in A place among Fig. 1;
Fig. 3 is another kind of Connecting format weldless joint metal hose structural representation;
Fig. 4 is the local enlarged diagram in B place among Fig. 3.
Embodiment
Below in conjunction with accompanying drawing, further specify the utility model embodiment.
Embodiment 1: the weldless joint metal hose with latus rectum D=20mm is an example, be provided with napex between the thread type joint 1 at two ends and the body and take over 3, the endoporus port that napex is taken over is an arc surface, the two ends of corrugated stainless steel tubing 5 are light pipe, this light pipe inserts napex and takes over endoporus, the flanging 9 of end is clipped between the end face of joint and napex adapter, and seal washer 8 is housed, and the nut 2 by band check ring 7 is coupled to one jointly; The end of stainless steel net 6 is clamped at and snaps in interior the withholding between ring 4 and the circular groove of circular groove that napex is taken over outer surface.
In the present embodiment, the flanging at bellows termination place progressively processes through encircling bulging shaping, flattening, cutting, overturning process by forming die or cutting tool on hydraulic press or machine tool.
Embodiment 2: still the weldless joint metal hose with latus rectum D=20mm is an example, and the joint at two ends is a flanged fitting 10, and fastening piece is the combination that has connecting plate 12 with the bolt 11 of check ring 7, and all the other structures are with embodiment 1.
Claims (3)
1, a kind of weldless joint metal hose, comprise body and joint, body is made of corrugated stainless steel tubing and stainless steel net, it is characterized in that being provided with between joint and body napex takes over, the endoporus port that napex is taken over is an arc surface, and the two ends of described corrugated stainless steel tubing are light pipe, and this light pipe inserts napex and takes over endoporus, and the flanging of its end is clipped between the end face of joint and napex adapter, is coupled to one by fastening piece jointly; The outer surface that napex is taken over has circular groove, withholds ring in the groove, and the end clips of described stainless steel net is at circular groove and withhold between the ring.
2, by the described weldless joint metal hose of claim 1, it is characterized in that described fastening piece is the combination that has nut or the connecting plate and the bolt of check ring.
3, by the described weldless joint metal hose of claim 1, it is characterized in that there is seal washer the junction of described joint and flanging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620075333 CN2937739Y (en) | 2006-07-21 | 2006-07-21 | Non-welding joint metal hose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620075333 CN2937739Y (en) | 2006-07-21 | 2006-07-21 | Non-welding joint metal hose |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2937739Y true CN2937739Y (en) | 2007-08-22 |
Family
ID=38361766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620075333 Expired - Lifetime CN2937739Y (en) | 2006-07-21 | 2006-07-21 | Non-welding joint metal hose |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2937739Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100419322C (en) * | 2006-07-21 | 2008-09-17 | 泰州市博特机械制造有限公司 | Weldless joint metal hose and producing method thereof |
| CN102667288A (en) * | 2009-11-05 | 2012-09-12 | 新日铁住金不锈钢株式会社 | Stainless steel flexible pipe |
| CN114811210A (en) * | 2021-12-31 | 2022-07-29 | 宁波天鑫金属软管有限公司 | Coating layer structure of corrugated hose for gas and mounting method thereof |
-
2006
- 2006-07-21 CN CN 200620075333 patent/CN2937739Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100419322C (en) * | 2006-07-21 | 2008-09-17 | 泰州市博特机械制造有限公司 | Weldless joint metal hose and producing method thereof |
| CN102667288A (en) * | 2009-11-05 | 2012-09-12 | 新日铁住金不锈钢株式会社 | Stainless steel flexible pipe |
| CN114811210A (en) * | 2021-12-31 | 2022-07-29 | 宁波天鑫金属软管有限公司 | Coating layer structure of corrugated hose for gas and mounting method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2937739Y (en) | Non-welding joint metal hose | |
| CN100419322C (en) | Weldless joint metal hose and producing method thereof | |
| CN201285248Y (en) | Connection structure of heat exchanger pipe and pipe plate | |
| CN203907041U (en) | Spiral corrugated steel pipe with cold-bent angle steel flanges at two ends | |
| CN102207231A (en) | Inserted steel pipeline connecting structure | |
| JP3194436U (en) | Loose flange fitting | |
| KR20100116057A (en) | T-shape pipe for duct | |
| CN202546102U (en) | High-pressure thick-wall heavy-calibre seamless hot-pressing elbow | |
| CN203526327U (en) | Clamping hoop die | |
| CN110274099A (en) | End is equipped with the composite metal-plastic pipe and its manufacturing method of enhancing sealing mechanism | |
| CN109654309A (en) | A kind of welding structure and preparation method thereof of circumferential wave metal bellows | |
| JP2016089970A (en) | Loose flange type pipe joint | |
| CN204159779U (en) | A kind of Hydraulic expansion-jointing frock | |
| CN209272760U (en) | A kind of heat exchanger tube expanded and welded tube joint clad tubesheet structure | |
| CN207610596U (en) | A kind of attachment device of vertical heat exchanger upper perforated plate and heat exchanger tube | |
| CN202493311U (en) | Pressure boost oil return pipe assembly for diesel engine | |
| CN202082537U (en) | Pushed elbow with single welding line | |
| CN205298627U (en) | Single welding seam welding formula ball valve | |
| CN101265997A (en) | Non-welding flange connected omega type non-corrodible steel metal hose and manufacture method | |
| CN213206630U (en) | Five-piece ball valve | |
| CN106895171A (en) | Sealing property ball valve high | |
| CN213177185U (en) | Novel loose flange for titanium material axial-flow pump | |
| CN104646967A (en) | Pressure-bearing water heater liner and method for processing pressure-bearing water heater liner | |
| CN202274216U (en) | Double-socket flexible casing | |
| CN208138675U (en) | A kind of Double-metal composite elbow |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20060721 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |