CA2233050A1 - Welding connection tube for a valve or multi-tube connector - Google Patents
Welding connection tube for a valve or multi-tube connector Download PDFInfo
- Publication number
- CA2233050A1 CA2233050A1 CA 2233050 CA2233050A CA2233050A1 CA 2233050 A1 CA2233050 A1 CA 2233050A1 CA 2233050 CA2233050 CA 2233050 CA 2233050 A CA2233050 A CA 2233050A CA 2233050 A1 CA2233050 A1 CA 2233050A1
- Authority
- CA
- Canada
- Prior art keywords
- tube
- connection tube
- solder strip
- welding connection
- valve
- 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.)
- Abandoned
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
- F16L13/08—Soldered joints
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve Housings (AREA)
Abstract
An improved welding connection tube for use in a valve or in a metallic multiple-tube connector is provided with at least two consecutive helical rings of a receiving groove extending inwardly from the frontmost edge of each welding connection tube. A leading cut is defined at the starting point of the helical or spiral receiving groove A soft solder strip of a proper length shorter than the length of the helically extended receiving groove is made also in a helical shape so that the solder strip can be easily moved into the welding connection tube of a valve or a multiple tube connector along the helical receiving groove with the end of the solder strip lying flush with the opened end of the welding connection tube. In assembly, a tube or pipe is spirally inserted into the welding connection tube and then heat is applied to the outer face of the welding connection tube so as to get the helical solder strip melted for effecting sealed connection.
Description
BACKGROUND OF THE INVENTION
The present invention relates to an improved welding connection tube for use in a valve or in a metallic multiple-tube connector. Such a welding connection tube is provided with at least two consecutive helical rings of a receiving groove extending inwardly from the frontmost edge of each welding connection tube. A
leading cut is defined at the starting point of the helical or spiral receiving groove A
soft solder strip of a proper length shorter than the length of the helically extended receiving groove is made also in a helical shape so that the solder strip can be easily moved into the welding connection tube of a valve or a multiple tube connector along the helical receiving groove with the end of the solder strip lying flush with the opened end of the welding connection tube. In assembly, a tube or pipe is spirally inserted into the welding connection tube and then heat is applied to the outer face of the welding connection tube so as to get the helical solder strip melted for effecting sealed connection.
Referring to Fig. 1, the most common connection of metallic tubes is as illustrated sectionally. Generally a number of metallic tubes 1 are connected to one another by way of a multiple-tube connector 2 having a number of connector branches 2a into which tubes are inserted. Then, solder 3 is applied to the peripheral edge and outer surface of a tube I so as to effect sealed connection of tubes 1 to the multiple-tube connector.
Such prior art connection has a number of disadvantages given as follows:
1. The connection spots are orthogonally distributed with respect to the connector branches 2a and the tubes 1, so, the welding connections are not strong enough to prevent the tubes 1 from disengagement from the multiple-tube connector 2.
The present invention relates to an improved welding connection tube for use in a valve or in a metallic multiple-tube connector. Such a welding connection tube is provided with at least two consecutive helical rings of a receiving groove extending inwardly from the frontmost edge of each welding connection tube. A
leading cut is defined at the starting point of the helical or spiral receiving groove A
soft solder strip of a proper length shorter than the length of the helically extended receiving groove is made also in a helical shape so that the solder strip can be easily moved into the welding connection tube of a valve or a multiple tube connector along the helical receiving groove with the end of the solder strip lying flush with the opened end of the welding connection tube. In assembly, a tube or pipe is spirally inserted into the welding connection tube and then heat is applied to the outer face of the welding connection tube so as to get the helical solder strip melted for effecting sealed connection.
Referring to Fig. 1, the most common connection of metallic tubes is as illustrated sectionally. Generally a number of metallic tubes 1 are connected to one another by way of a multiple-tube connector 2 having a number of connector branches 2a into which tubes are inserted. Then, solder 3 is applied to the peripheral edge and outer surface of a tube I so as to effect sealed connection of tubes 1 to the multiple-tube connector.
Such prior art connection has a number of disadvantages given as follows:
1. The connection spots are orthogonally distributed with respect to the connector branches 2a and the tubes 1, so, the welding connections are not strong enough to prevent the tubes 1 from disengagement from the multiple-tube connector 2.
2. The orthogonal welding connection makes the tubes subject to easy leakage in practical operation.
3. The welding process takes relatively too much time, resulting in high cost of production.
Referring to Figs. 2, 3, two kinds of prior art welding connection of a pipe to a mufti-tube connector are illustrated. In Figs. 2A, 2B, a common solder material 3 is first located in a groove or cavity 2b on the inner wall of a connection end 2a of a mufti-tube connector 2 and then the solder material 3 is melted in the groove or cavity 2b. After the melted solder material 3 is solidified, it is ground flat in flush with the inner wall of the connection end 2a by way of sand papers so as to permit a tube 1 to be inserted therein. Another soft solder material 3' is alternatively located in the groove 2b of the connection end 2a and is flatly pressed into engagement with the groove 2b in flush with the inner wall of the connection end 2a so as to permit of the insertion of the tube 1. Afterwards, the connection end 2a of the connector 2 is heated by a torch so as to make the soldering material 3 or 3' melted to retain the inserted tube 1 in place in assembly.
Such a prior art has the following disadvantages in practical use:
1. There are too many extra steps required in an assembly process, making the cost and. labor wasted.
2. The soldering material 3 or 3 ' in the groove 2b of the connection end 2a will be thinly distributed, making the welding assembly of the connection end 2a and the tube 1 not strong enough and leak-free..
Therefore, the primary object of the present invention is to provide an improved welding connection tube for a valve or mufti-tube connector which does not take many procedures or multiple complex processing so as to make an assembly of valves simple and speedy and reduce the cost of labor in assembly.
Another obj ect of the present invention is to provide an improved welding connection to a valve or mufti-tube connector which can produce multiple overlapping protections at the welding spots so as to make the welding strength built up and the leakage proof ability increased for a valve or mufti-tube connector.
Fig. 1 is a sectional diagram showing a general prior art assembly of pipes to a valve;
Figs. 2A, 2B are sectional diagrams showing another prior art assembly of pipes to a valve wherein solder material is melted in an inner groove and then is ground in flush with the surface of the connection end of a mufti-tube connector so as to permit a tube to be inserted and then heat is applied to the tube to get the soldering material to melt again so as to retain the inserted tube in place ;
Figs. 2C, 2D are diagrams showing the location of a soft soldering material in the groove of the connector by a specific tool and the connector is heated to get the soft solder material melted to retain an inserted tube in place;
Fig. 3A, 3B are diagrams showing the use of a common solder material in the second prior art;
Figs.3C, 3D are sectional diagrams showing the use of a soft solder material in the second prior art;
Fig. 4 is a diagram showing the exploded components of the first embodiment of the present invention;
Fig. 4A is a diagram partially showing a second embodiment of the present invention;
Fig. 5 is a diagram showing the assembly and location of the soldering material in the spiral groove in a connection pipe of a valve;
Fig. 6 is a diagram showing the melting of solder material in the spiral groove of the present invention;
Fig. 6A is an enlarged diagram showing the melting of solder material in the spiral groove so as to firmly retain a pipe in place in a valve.
Refernng to Figs. 4, the improved welding connection tube 21 for use in a common valve or multi-tube connector is used in combination with a metallic tube 10, a valve head or a multiple-tube connector 20 and a soft solder strip 30. The welding connection tube 21 of a valve or a metallic mufti-tube connector 20 is provided with a continuous spiral groove 211 having at least two consecutive ringed areas. At the edge of the connection tube 21 is disposed a leading cut 212.
Referring further to Fig. 4A, the connection tube 21 have a continuous spiral or helical groove 211 which extends in such a manner that the outer surface of the connection tube 21 forms a continuous spiral protrusion thereon.
The soft solder strip 30 is flexible to be bent and its length is shorter than the length of the spiral groove 211 of the connection tube 21 of the valve or multi-tube connector 20.
Referring to Figs. 2, 3, two kinds of prior art welding connection of a pipe to a mufti-tube connector are illustrated. In Figs. 2A, 2B, a common solder material 3 is first located in a groove or cavity 2b on the inner wall of a connection end 2a of a mufti-tube connector 2 and then the solder material 3 is melted in the groove or cavity 2b. After the melted solder material 3 is solidified, it is ground flat in flush with the inner wall of the connection end 2a by way of sand papers so as to permit a tube 1 to be inserted therein. Another soft solder material 3' is alternatively located in the groove 2b of the connection end 2a and is flatly pressed into engagement with the groove 2b in flush with the inner wall of the connection end 2a so as to permit of the insertion of the tube 1. Afterwards, the connection end 2a of the connector 2 is heated by a torch so as to make the soldering material 3 or 3' melted to retain the inserted tube 1 in place in assembly.
Such a prior art has the following disadvantages in practical use:
1. There are too many extra steps required in an assembly process, making the cost and. labor wasted.
2. The soldering material 3 or 3 ' in the groove 2b of the connection end 2a will be thinly distributed, making the welding assembly of the connection end 2a and the tube 1 not strong enough and leak-free..
Therefore, the primary object of the present invention is to provide an improved welding connection tube for a valve or mufti-tube connector which does not take many procedures or multiple complex processing so as to make an assembly of valves simple and speedy and reduce the cost of labor in assembly.
Another obj ect of the present invention is to provide an improved welding connection to a valve or mufti-tube connector which can produce multiple overlapping protections at the welding spots so as to make the welding strength built up and the leakage proof ability increased for a valve or mufti-tube connector.
Fig. 1 is a sectional diagram showing a general prior art assembly of pipes to a valve;
Figs. 2A, 2B are sectional diagrams showing another prior art assembly of pipes to a valve wherein solder material is melted in an inner groove and then is ground in flush with the surface of the connection end of a mufti-tube connector so as to permit a tube to be inserted and then heat is applied to the tube to get the soldering material to melt again so as to retain the inserted tube in place ;
Figs. 2C, 2D are diagrams showing the location of a soft soldering material in the groove of the connector by a specific tool and the connector is heated to get the soft solder material melted to retain an inserted tube in place;
Fig. 3A, 3B are diagrams showing the use of a common solder material in the second prior art;
Figs.3C, 3D are sectional diagrams showing the use of a soft solder material in the second prior art;
Fig. 4 is a diagram showing the exploded components of the first embodiment of the present invention;
Fig. 4A is a diagram partially showing a second embodiment of the present invention;
Fig. 5 is a diagram showing the assembly and location of the soldering material in the spiral groove in a connection pipe of a valve;
Fig. 6 is a diagram showing the melting of solder material in the spiral groove of the present invention;
Fig. 6A is an enlarged diagram showing the melting of solder material in the spiral groove so as to firmly retain a pipe in place in a valve.
Refernng to Figs. 4, the improved welding connection tube 21 for use in a common valve or multi-tube connector is used in combination with a metallic tube 10, a valve head or a multiple-tube connector 20 and a soft solder strip 30. The welding connection tube 21 of a valve or a metallic mufti-tube connector 20 is provided with a continuous spiral groove 211 having at least two consecutive ringed areas. At the edge of the connection tube 21 is disposed a leading cut 212.
Referring further to Fig. 4A, the connection tube 21 have a continuous spiral or helical groove 211 which extends in such a manner that the outer surface of the connection tube 21 forms a continuous spiral protrusion thereon.
The soft solder strip 30 is flexible to be bent and its length is shorter than the length of the spiral groove 211 of the connection tube 21 of the valve or multi-tube connector 20.
Referring to Fig. 5, the assembly of the present invention is shown in detail. At the beginning of the assembly, the soft solder strip 30 is first spirally moved forwardly, along the spiral groove 211, into the connection tube 21 of the valve or mufti-tube connector 20 from the leading cut 212 at the starting point of the edge of the connection tube 21 until the end of the soft solder strip 30 reaches the rear end of the spiral groove 211 of the connection tube 21.
Referring further to Figs. 6, 6A, the sectional diagram of the connection tube 21 of the present invention shows that the soft solder strip 30 is melted by heat to axially distribute in-between the ringed area of the spiral groove 211 of the connection tube 21 of a valve or mufti-tube connector 20 so as to firmly retain the inserted metallic tube in place in one aspect and to effectively prevent liquid from leaking via the welding spots in another aspect.
It can be apparently seen that the present invention has the following advantages in practical use:
l.The assembly and welding operations of the present invention are simple and quick, effectively decreasing the cost and labor in practical use.
2.The inserted tube 10 and the connection tube 21 of a valve or mufti-tube connector 20 are welded together by way of a multiple-spot connection, making the strength and leak-proof capacity of the welding connection increased s
Referring further to Figs. 6, 6A, the sectional diagram of the connection tube 21 of the present invention shows that the soft solder strip 30 is melted by heat to axially distribute in-between the ringed area of the spiral groove 211 of the connection tube 21 of a valve or mufti-tube connector 20 so as to firmly retain the inserted metallic tube in place in one aspect and to effectively prevent liquid from leaking via the welding spots in another aspect.
It can be apparently seen that the present invention has the following advantages in practical use:
l.The assembly and welding operations of the present invention are simple and quick, effectively decreasing the cost and labor in practical use.
2.The inserted tube 10 and the connection tube 21 of a valve or mufti-tube connector 20 are welded together by way of a multiple-spot connection, making the strength and leak-proof capacity of the welding connection increased s
Claims (2)
1. A welding connection tube for use in a valve, in combination with a flexible soft solder strip and a metallic tube to be connected to said valve wherein said connection tube has a continuous spiral groove defined on an inner wall of said connection tube and starting from an edge of said connection tube; a leading cut is disposed at the edge of said connection tube and a starting point of said spiral groove; said soft solder strip has a length shorter than that of said continuous spiral groove; said soft solder strip is spirally guided into said continuous spiral groove from said leading cut and said metallic tube to be inserted is then spirally inserted into said connection tube so as to make said soft solder strip sandwiched between said inserted metallic tube and said inner wall of said connection tube whereby when heat is applied to said connection tube externally, said soft solder strip will get melted and distributed axially along said continuous spiral groove, producing a continuous welding area to increase the welding strength and leak-proof capacity thereof.
2. The welding connection tube as claimed in claim 1 wherein said connection tube is applied to a mufti-tube connector and said continuous spiral groove has at least two consecutive ringed areas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2233050 CA2233050A1 (en) | 1998-03-25 | 1998-03-25 | Welding connection tube for a valve or multi-tube connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2233050 CA2233050A1 (en) | 1998-03-25 | 1998-03-25 | Welding connection tube for a valve or multi-tube connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2233050A1 true CA2233050A1 (en) | 1999-09-25 |
Family
ID=29409505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2233050 Abandoned CA2233050A1 (en) | 1998-03-25 | 1998-03-25 | Welding connection tube for a valve or multi-tube connector |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2233050A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840202A (en) * | 2012-08-07 | 2012-12-26 | 西安康本材料有限公司 | Screw key and manufacturing die and manufacturing method thereof |
| CN110486560A (en) * | 2019-08-16 | 2019-11-22 | 广州凌鼎建筑工程有限公司 | A kind of house feedwater piping |
-
1998
- 1998-03-25 CA CA 2233050 patent/CA2233050A1/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840202A (en) * | 2012-08-07 | 2012-12-26 | 西安康本材料有限公司 | Screw key and manufacturing die and manufacturing method thereof |
| CN110486560A (en) * | 2019-08-16 | 2019-11-22 | 广州凌鼎建筑工程有限公司 | A kind of house feedwater piping |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |