CN202597949U - Metallic pipe connection structure - Google Patents
Metallic pipe connection structure Download PDFInfo
- Publication number
- CN202597949U CN202597949U CN 201220180163 CN201220180163U CN202597949U CN 202597949 U CN202597949 U CN 202597949U CN 201220180163 CN201220180163 CN 201220180163 CN 201220180163 U CN201220180163 U CN 201220180163U CN 202597949 U CN202597949 U CN 202597949U
- Authority
- CN
- China
- Prior art keywords
- connection
- linkage structure
- metallic conduit
- bayonet
- pipe
- 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 - Fee Related
Links
Images
Landscapes
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
Provided is a metallic pipe connection structure. A connection pipe comprises a female end and an inserting end mutually inserted, and is characterized in that the pipe diameter of the female end is gradually enlarged facing the opening direction, and the female end is divided into at least three pipe diameter steps, respectively a limit step, a location step and a connection step, wherein the inner diameter of the location step is the same with the outer diameter of the inserting end, and the connection step is provided with a polygon or circular pressing port. The metallic pipe connection structure has the advantages of being reasonable in structure and easy to connect and install, and the process of a pipe port is convenient. Due to the fact that the front end of the inserting end is inserted into the location step, reliability of connection between the inserting end and the location step can be achieved and no inclination exists. In addition, connection between the inserting end and the location step is firm after clamping connection, particularly, sealing glue is adopted and filled in a gap between connection pipes after clamping, and therefore excellent sealing effect can be achieved.
Description
Technical field
The utility model relates to a kind of water supply and sewerage pipeline field, refers in particular to a kind of linkage structure of metallic conduit.
Background technique
Thin-walled stainless steel tube is connected with multiple at present; Be widely used in fields such as combustion gas, feedwater; Wherein having a kind of is to adopt the Stainless Steel Tube of anaerobic adhesive sealing principle to connect; Its principle is that its link is the bellmouth shape, and the bellmouth internal diameter is than the big 0.2mm～0.5mm of tube outer diameter, and on the surface of this endoporus, is coated with anaerobic adhesive and forms adhesive layer.Connected tube inserts in the bellmouth of link, produces plastic deformation with extrusion die simultaneously to the link pipe that makes pipe fitting and insertion that presses again, thus the connection of realization pipe fitting.This pipe joint construction is simple, easy to operate, can practice thrift tubing cost and installation work-hour expense.And its anti-pulling ability is strong, and connection is reliable, sealing is good.But deficiency is, because pipe will have been controlled certain clearance when inserting link, guaranteeing to be coated with the anaerobic adhesive layer of spreading has enough and space uniformly, otherwise too thinly just makes its seal failure easily.Thin-wall stainless steel has individual common fault, because the thin stainless steel of its wall is a cold machine-shaping, wall is thin, easy deformation, and pipe and link all are easy to occur oval phenomenon, and the precision of bore is to realize in practice.When any one of pipe and link occur when oval; This moment, both then were not an equal circularity, during connection, and cannot be between link and the pipe when pipe inserts link according to the standard of design keep in balance gap and precision; The internal diameter of link can appear being equal to or greater than in the external diameter at pipe plus tolerance position; If when pipe inserted the link bellmouth by force, the position port of pipe plus tolerance can make the anaerobic adhesive coating that spreads upon the link socket in advance be pushed in link, causes the gluing loss of leading; Sealing layer was lost efficacy, and above deficiency haves much room for improvement.
Summary of the invention
In order to overcome the deficiency of above existence; The utility model provides a kind of metallic conduit linkage structure, and connecting tube comprises the female end and the bayonet end of mutual grafting, and its special way is; Described female end enlarges to the opening direction caliber gradually; At least divide three caliber orders, be respectively limited step, positioning step and be connected step, wherein the positioning step internal diameter is suitable with the bayonet end external diameter; By the personality card pressing tongs, card is pressed into a polygonal or a circular purpose of pressing mouth to reach fixed connection in connection step position.
Wherein, the positioning step internal diameter is the plus tolerance 0-0.3mm of bayonet end external diameter, so that bayonet end can be inserted into the positioning step position of female end smoothly, plays fixing effect.
Wherein, connect the step internal diameter than the big 4-6mm of bayonet end external diameter; And when bayonet end inserts female end, scribble sealer between connection step inwall and bayonet end outer wall; Sealer is an anaerobic adhesive, and after female end was blocked pressure, anaerobic adhesive can be concentrated be distributed in the gap, both sides automatically form sealing layer, thereby reach good sealing effect under the effect that receives the agent pressure.
Blocked indentation at said bayonet end corresponding to the impression position that connects step polygonal or circular pressure mouth and fallen into, guaranteed that the connecting tube one of mutual grafting is fixedly connected; This impression has the ora terminalis that is located at female end together at least.
The utility model technical pattern is reasonable, and the mouth of pipe is easy to process, and connection is easy; The front end of bayonet end inserts the position and decides the reliability that step can reach the two connection; Be unlikely to tilt, both are connected firmly and press the connection back through card, have particularly adopted sealer; After card is pressed, be filled in the space between the connecting tube, reach good sealing effect.
Description of drawings
Fig. 1 is a linkage structure schematic representation before the utility model control card is pressed.
Fig. 2 is that the utility model control card is pressed back linkage structure schematic representation.
Fig. 3 is that the A-A of Fig. 2 is to sectional view.
Embodiment
To combine accompanying drawing the utility model to be further specified below with embodiment.
As shown in Figure 1; This metallic conduit linkage structure, connecting tube comprise the bayonet end 1 and female end 2 of mutual grafting, and be visible among the figure; Female end 2 enlarges three caliber orders of branch gradually to the opening direction caliber, is respectively limited step 3, positioning step 4 and is connected step 5; The caliber even thickness of bayonet end 1; Identical with female end limited step 3 calibers; Bayonet end 1 external diameter is suitable with positioning step 4 internal diameters, can not need during installation can bayonet end 1 be inserted positioning step 4 interior changeover portions 6 to positioning step 4 and limited step 3 by bigger strength, can accomplish the stability of two connecting tubes at axial direction like this; In order to realize that better above insertion is smooth; Requirement positioning step 4 internal diameters are that the plus tolerance 0-0.3mm scope of bayonet end 1 external diameter is good, and in the present embodiment, above-mentioned plus tolerance is 0.3mm; Simultaneously, it is bigger than bayonet end 1 external diameter to connect step 5 internal diameters, so that can be coated with sealer at inwall, through facts have proved, connecting step 5 internal diameters is reasonable embodiment than the big 4-6mm of bayonet end 1 external diameter, and above-mentioned difference is 4mm in the present embodiment; When bayonet end 1 inserted female end 2, the gap that connects step 5 inwalls and bayonet end 1 outer wall scribbled sealer 7, and present embodiment uses anaerobic adhesive.
Referring to Fig. 2, Fig. 3, during connection, coat anaerobic adhesive at connection step 5 inwalls of female end 2 in advance and form adhesive sealing glue 7 simultaneously; With the pipe of assembly is that bayonet end 1 inserts female end 2; Support causing limited step 3, assembly presses with connection step 5 positions of personality card press tool to female end 2 after accomplishing, and makes connection step 5 and corresponding with it bayonet end 1 pipe shaft produce plastic deformation simultaneously; Visible among the figure; Connect at this moment step A position and corresponding bayonet end and under the effect of being under pressure, produced concavity, promptly bayonet end 1 closely is interlocked with female end 2 in the position of A, produces firm intensity effect.Simultaneously, after connection step 5 was under pressure and is out of shape, sealer can be concentrated be distributed in the gap, connecting tube both sides automatically form sealing layer, thereby reach good sealing effect under the active force that is squeezed.Also visible among the figure, the impression that pressed by personality card press tool card has twice, and wherein at one ora terminalis at female end, such effect structure is better.
The utility model structure is widely used in the connection of metallic conduits such as threeway, straight-through elbow; This well-formed ground guarantees the harmony of sealing layer; Effectively guaranteed the Security of sealing; Greatly reduce because the product structure problem reduces sealing effect or the damage seal coating causes seal failure, this connecting means easy construction, safe and reliable.It is Hexagon that above embodiment's card is pressed mouth, presses special tool and need of work according to card, also can block to press to be other polygonals or circle, can reach the utility model purpose equally.In like manner, three caliber orders of the utility model be for spacing, locate and be tightly connected and establish, can also add the caliber step that is made as other purposes, be construed as the protection domain of the utility model.
Claims (7)
1. metallic conduit linkage structure; Connecting tube comprises the female end and the bayonet end of mutual grafting, it is characterized in that, described female end enlarges to the opening direction caliber gradually; At least divide three caliber orders; Be respectively limited step, positioning step and be connected step, wherein the positioning step internal diameter is suitable with the bayonet end external diameter, is provided with polygonal or circular and presses mouthful connecting the step position.
2. metallic conduit linkage structure according to claim 1 is characterized in that, described positioning step internal diameter is the plus tolerance 0-0.3mm of bayonet end external diameter.
3. metallic conduit linkage structure according to claim 1 is characterized in that, described connection step internal diameter is than the big 4-6mm of bayonet end external diameter.
4. metallic conduit linkage structure according to claim 3 is characterized in that, when said bayonet end inserts female end, scribbles sealer between connection step inwall and bayonet end outer wall.
5. metallic conduit linkage structure according to claim 4 is characterized in that, said sealer is an anaerobic adhesive.
6. according to arbitrary described metallic conduit linkage structure among the claim 1-5, it is characterized in that, blocked indentation at said bayonet end corresponding to the impression position that connects step polygonal or circular pressure mouth and fall into.
7. metallic conduit linkage structure according to claim 6 is characterized in that said impression has the ora terminalis that is located at female end together at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220180163 CN202597949U (en) | 2012-04-25 | 2012-04-25 | Metallic pipe connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220180163 CN202597949U (en) | 2012-04-25 | 2012-04-25 | Metallic pipe connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202597949U true CN202597949U (en) | 2012-12-12 |
Family
ID=47315489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220180163 Expired - Fee Related CN202597949U (en) | 2012-04-25 | 2012-04-25 | Metallic pipe connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202597949U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195991A (en) * | 2013-04-17 | 2013-07-10 | 陈建林 | Seal connection structure for metal pipes |
| CN108317122A (en) * | 2017-01-16 | 2018-07-24 | 浙江师范大学 | A kind of ditrysian type for circulating ball hydraulic steering gear is without pressure difference mechanism |
-
2012
- 2012-04-25 CN CN 201220180163 patent/CN202597949U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195991A (en) * | 2013-04-17 | 2013-07-10 | 陈建林 | Seal connection structure for metal pipes |
| CN108317122A (en) * | 2017-01-16 | 2018-07-24 | 浙江师范大学 | A kind of ditrysian type for circulating ball hydraulic steering gear is without pressure difference mechanism |
| CN108317122B (en) * | 2017-01-16 | 2023-09-15 | 浙江师范大学 | Double-hole type differential pressure-free mechanism for recirculating ball hydraulic steering gear |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104395665B (en) | Clamp connection for pipeline | |
| CN106322008B (en) | A kind of pipe fitting | |
| CN200972038Y (en) | Clamp for connecting joint of plastic pipe and metal pipe | |
| CN202597949U (en) | Metallic pipe connection structure | |
| CN202001749U (en) | Anti-corrosive buckle press joint for composite pressure pipe connection and pipeline connection structure | |
| CN2797827Y (en) | Shoulder hoop used for lined glass fiber reinforced plastic tube | |
| CN203560643U (en) | Dual-nozzle high-pressure quick-plug connector | |
| CN211901920U (en) | Socket joint pressfitting pipe fitting | |
| CN203115373U (en) | Fast connecting structure for pipe fittings | |
| CN205065088U (en) | Thin wall stainless steel pipeline connecting piece | |
| CN204284723U (en) | A kind of Large Chassis connection pipe fitting assembly | |
| CN203052018U (en) | Metal tube connection kit | |
| CN205013903U (en) | Nonrust steel pipe connection structure of plain type thin wall | |
| CN210739686U (en) | Y-shaped three-way quick connector for fluid conduit | |
| CN202597950U (en) | Double-press-fitting adhesive type connecting piece of thin-wall stainless steel pipe | |
| CN1959175A (en) | Flange card convex type zigzag connecting pipe | |
| EP3855057B1 (en) | Pipe joint and method for using same | |
| CN202644646U (en) | Annular-pressure connection thin-wall metal pipeline system | |
| CN203297819U (en) | Stainless steel-lined T-branch pipe fitting | |
| CN102401195A (en) | Stainless steel reducing pipe and machining method thereof | |
| CN201081066Y (en) | Plastic conveying connecting pipe with metal pipe interface | |
| CN210770766U (en) | Quick joint for pipeline | |
| CN201190848Y (en) | Extrusion type connecting pipe fitting for thin-wall metal pipe | |
| CN2443218Y (en) | Extruding pipe joint | |
| CN201071995Y (en) | Stainless steel water segregator assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20170425 |