CN203052018U - Metal tube connection kit - Google Patents
Metal tube connection kit Download PDFInfo
- Publication number
- CN203052018U CN203052018U CN 201220656088 CN201220656088U CN203052018U CN 203052018 U CN203052018 U CN 203052018U CN 201220656088 CN201220656088 CN 201220656088 CN 201220656088 U CN201220656088 U CN 201220656088U CN 203052018 U CN203052018 U CN 203052018U
- Authority
- CN
- China
- Prior art keywords
- metal tube
- diameter
- enlarging
- pipe
- reducing
- 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
- 239000002184 metal Substances 0.000 title claims abstract description 75
- 230000000694 effects Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model discloses a metal tube connection kit, comprising a first metal tube and a second metal tube. An orifice of the first metal tube tightly sleeves an orifice of the second metal tube. The orifice of the first metal tube is provided with a flaring, whose diameter is larger than the pipe diameter of the first metal tube. The orifice of the second metal tube is provided with a reduced-bore, whose diameter is smaller than the pipe diameter of the second metal tube. The internal diameter of the flaring is larger than the external diameter of the reduced bore, and the flaring tightly sleeves the reduced bore. The metal tube connection kit is advantageous in that the connection is more stable, and tight connection between two metal tubes is well guaranteed; processing technology is simple, use is convenient, and effect is good.
Description
Technical field
The utility model relates to a kind of metal tube, is specifically related to a kind of metal tube and connects external member.
Background technique
In the building water supply and drainage field, metal tube is the member of using always, and often metal tubes that will two calibers is identical link to each other with the length that increases metal tube in order to satisfy requirement of engineering.Traditional Placement is a lot, uses the method for welding to connect usually.But there is certain defective in this connecting means, the technological requirement height of the processing method of welding, if welding is bad, the joint of metal tube is easy to generate the insufficient strength of gaps and omissions or weld, influences using effect.On the other hand, the processing cost of welding is also higher.
The model utility content
The model utility purpose: the purpose of this utility model is in order to overcome the deficiencies in the prior art, and a kind of connection metal tube connection closely external member is provided.
Technological scheme: a kind of metal tube described in the utility model connects external member, comprises first metal tube and second metal tube, and the mouth of pipe of described first metal tube closely coats the mouth of pipe of second metal tube.
The mouth of pipe of described first metal tube is provided with enlarging, and the enlarging diameter adopts hot expansion process to carry out enlarging by hydraulic pressure installation greater than the caliber of first metal tube; The mouth of pipe of described second metal tube is provided with reducing, and reentrant diameter adopts diameter reducing process to carry out reducing by hydraulic pressure installation less than the caliber of second metal tube; The internal diameter of described enlarging is slightly larger than the external diameter of described reducing, form the attachment portion after the reducing of second metal tube being inserted the enlarging of first metal tube, by hydraulic pressure installation combining closely of enlarging and reducing shunk to guarantee in the attachment portion again, described enlarging closely coats described reducing.
Preferably, the caliber of the caliber of first metal tube and second metal tube equates, so the enlarging of first metal tube closely coats the reducing of second metal tube, is linked to be a metal tube integral body.
Further, at first metal tube and the second metal tube plastic lining layer, can make the compound lining plastic composited pipe material that becomes of metal tube and plastic layer.
Beneficial effect: the Placement of the utility model metal tube connection external member is more firm, has well guaranteed the connection compact type between two metal tubes, and processing technology is simple, and is easy to use, effective.
Description of drawings
Fig. 1 is the structural representation of model utility;
Fig. 2 is the enlarging structural representation of first metal tube described in the utility model;
Fig. 3 is the throat structure schematic representation of second metal tube described in the utility model.
Embodiment
Below technical solutions of the utility model are elaborated, but protection domain of the present utility model is not limited to described embodiment.
Embodiment:A kind of metal tube of the utility model connects external member, as shown in Figure 1, comprises first metal tube 1 and second metal tube 2, and the mouth of pipe of described first metal tube 1 closely coats the mouth of pipe of second metal tube 2.
The mouth of pipe of first metal tube 1 as shown in Figure 2 is provided with enlarging 3, and enlarging 3 diameters adopt hot expansion process to carry out enlarging 3 by hydraulic pressure installation greater than the caliber of first metal tube 1; The mouth of pipe of second metal tube 2 as shown in Figure 3 is provided with reducing 4, and reducing 4 diameters adopt diameter reducing process to carry out reducing 4 by hydraulic pressure installation less than the caliber of second metal tube 2; The internal diameter of enlarging 3 is slightly larger than the external diameter of described reducing 4, enlarging 3 backs of the reducing 4 of second metal tube 2 being inserted first metal tube 1 form attachment portions, again by hydraulic pressure installation to the attachment portion shrink to form as shown in Figure 1 combine closely into mouth of pipe clad structure.
The caliber of the caliber of first metal tube 1 and second metal tube 2 equates, so the enlarging of first metal tube 1 closely coats the reducing of second metal tube 2, is linked to be a metal tube integral body.
As mentioned above, although represented and explained the utility model that with reference to specific preferred embodiment it shall not be construed as the restriction to the utility model self.Under the spirit and scope prerequisite of the present utility model that does not break away from the claims definition, can make various variations in the form and details to it.
Claims (4)
1. a metal tube connects external member, comprises first metal tube and second metal tube, it is characterized in that: the mouth of pipe of described first metal tube closely coats the mouth of pipe of second metal tube.
2. metal tube according to claim 1 connects external member, and it is characterized in that: the mouth of pipe of described first metal tube is provided with enlarging, and described enlarging diameter is greater than the caliber of described first metal tube; The mouth of pipe of described second metal tube is provided with reducing, and described reentrant diameter is less than the caliber of described second metal tube; The internal diameter of described enlarging is slightly larger than the external diameter of described reducing, and described enlarging closely coats described reducing.
3. connect external member according to the described metal tube of claim 2, it is characterized in that: the caliber of the caliber of described first metal tube and second metal tube equates.
4. metal tube according to claim 1 connects external member, it is characterized in that: described first metal tube and the second metal tube plastic lining layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220656088 CN203052018U (en) | 2012-12-04 | 2012-12-04 | Metal tube connection kit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220656088 CN203052018U (en) | 2012-12-04 | 2012-12-04 | Metal tube connection kit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203052018U true CN203052018U (en) | 2013-07-10 |
Family
ID=48734971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220656088 Expired - Lifetime CN203052018U (en) | 2012-12-04 | 2012-12-04 | Metal tube connection kit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203052018U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106430368A (en) * | 2016-11-30 | 2017-02-22 | 欧阳国建 | Split filter element |
| CN107575169A (en) * | 2017-08-24 | 2018-01-12 | 衡阳华菱连轧管有限公司 | The joint processing method of oil well pipe and oil well pipe |
| CN113263244A (en) * | 2021-05-08 | 2021-08-17 | 天津大学 | Welding method suitable for easily oxidized alloy thin-walled tube |
-
2012
- 2012-12-04 CN CN 201220656088 patent/CN203052018U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106430368A (en) * | 2016-11-30 | 2017-02-22 | 欧阳国建 | Split filter element |
| CN107575169A (en) * | 2017-08-24 | 2018-01-12 | 衡阳华菱连轧管有限公司 | The joint processing method of oil well pipe and oil well pipe |
| CN113263244A (en) * | 2021-05-08 | 2021-08-17 | 天津大学 | Welding method suitable for easily oxidized alloy thin-walled tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130710 |