CN204893270U - Nozzle stub connects long device - Google Patents
Nozzle stub connects long device Download PDFInfo
- Publication number
- CN204893270U CN204893270U CN201520434438.0U CN201520434438U CN204893270U CN 204893270 U CN204893270 U CN 204893270U CN 201520434438 U CN201520434438 U CN 201520434438U CN 204893270 U CN204893270 U CN 204893270U
- Authority
- CN
- China
- Prior art keywords
- shaft cover
- swelling shaft
- interior swelling
- push rod
- ring
- 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.)
- Active
Links
Landscapes
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The utility model provides a nozzle stub connects long device, including interior bloated axle sleeve, on the step groove of the axle sleeve front end that expands in the rubber sealing washer is located, the axle sleeve rear end of expanding in the retaining ring is located, inside the axle sleeve that expands in the ejector pin is located, the axle sleeve front end that expands in during rotatory ejector pin is outwards expanded, and the rubber sealing washer expands tightly in the coupling inner wall. Stretch into during the part coupling scrapes the flush end clockwise rotation ejector pin with interior bloated axle sleeve front end for interior bloated axle sleeve front end is outwards expanded, thereby makes the rubber sealing washer expand tightly in part coupling inner wall, on being positioned retaining ring position clamping for welding equipment, treat part coupling butt joint welding operation after, the counter -clockwise turning ejector pin extracted in can scraping the flush end inner wall with this device follow part coupling. The device provided by the utility model simple structure, low in manufacturing cost, the effective centre gripping segment length of coupling on welding equipment through connecing the length to the nozzle stub, can be guaranteed to the simple operation to showing improve the coupling weld the back straightness accuracy.
Description
Technical field
The utility model relates to a kind of source nipple extending device, belongs to boiler technology field.
Background technology
At present, pipe joint length in boiler is shorter, in groove butt welding termination process, the effective gripping section of pipe joint on welding equipment is limited, the pipe joint welded out is caused to there is obvious knuckle (linearity is overproof serious), therefore follow-up also need increases the inside and outside sired results sequence of car system to pipe, and a large amount of human and material resources of this process consumption, are unfavorable for Workshop Production.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of source nipple extending device that can increase the effective gripping section length of pipe joint on welding equipment.
In order to solve the problems of the technologies described above, the technical solution of the utility model is to provide a kind of source nipple extending device, it is characterized in that: comprise interior swelling shaft cover, rubber sealing ring is located on the step groove of interior swelling shaft cover front end, back-up ring is located at interior swelling shaft cover rear end, it is inner that interior swelling shaft cover is located at by push rod, and during rotation push rod, interior swelling shaft cover front end expands outwardly, and rubber sealing ring swelling is in pipe joint inwall.
Preferably, described interior swelling shaft cover is tubular structure, and interior swelling shaft cover outside, front end is inwardly recessed and forms described step groove, and interior swelling shaft cover front end is provided with the open slot made from expanding outwardly under the effect of internal expansion power; Interior swelling shaft cover inside, front end is provided with internal taper hole, and interior swelling shaft cover inside, rear end is provided with internal thread hole, and internal thread hole is coaxial with internal taper hole and be throughly connected; Interior swelling shaft cover outside, rear end is provided with external screw thread.
Preferably, the external screw thread of described interior swelling shaft cover outside, rear end is left hand direction, and the internal thread in the internal thread hole of described interior swelling shaft cover inside, rear end is clockwise direction.
Preferably, described back-up ring is ring-type, and described back-up ring excircle dimension is identical with described pipe joint excircle dimension; Be provided with endoporus in back-up ring, endoporus inwall is provided with internal thread, and the external screw thread during back-up ring is overlapped by internal thread and described interior swelling shaft is connected.
Preferably, the internal thread in described back-up ring is left hand direction.
Preferably, described push rod is acicular texture, and push rod front portion is provided with cone axis, and in the middle part of push rod, periphery is provided with external screw thread, and push rod is connected by the internal thread during external screw thread overlaps with described interior swelling shaft, and push rod rear portion is provided with butterfly handle.
Preferably, the external screw thread on described push rod is clockwise direction.
Preferably, the internal taper hole in described interior swelling shaft cover is identical with the angle of taper of the cone axis in described push rod, is a.
Preferably, the scope of described a is 5 ° ~ 20 °.
When the source nipple extending device that the utility model provides uses, part pipe joint is stretched in interior swelling shaft cover front end to be scraped in flush end, turn clockwise push rod, it is made to produce relative to interior swelling shaft cover the track moved inwards, make interior swelling shaft overlap front end to expand outwardly, thus make rubber sealing ring swelling in part pipe joint inwall.By the back-up ring position Set and Positioning in this device on welding equipment, after part pipe joint docking welding operation terminates, be rotated counterclockwise push rod, this device can be scraped flush end inwall from part pipe joint and extract.
The apparatus structure that the utility model provides is simple, and low cost of manufacture, simple operation, by carrying out spreading to source nipple, can ensure the effective gripping section length of pipe joint on welding equipment, thus significantly improving pipe joint postwelding linearity.
Accompanying drawing explanation
The source nipple extending device structural representation that Fig. 1 provides for the utility model;
The source nipple extending device partial sectional view that Fig. 2 provides for the utility model;
Fig. 3 is interior swelling shaft nested structure schematic diagram;
Fig. 4 is back-up ring sectional view;
Fig. 5 is back-up ring side view;
Fig. 6 is push rod structure schematic diagram.
Detailed description of the invention
For making the utility model become apparent, hereby with a preferred embodiment, and accompanying drawing is coordinated to be described in detail below.
The source nipple extending device structural representation that Fig. 1 provides for the utility model, described source nipple extending device is made up of rubber sealing ring 1, interior swelling shaft cover 2, back-up ring 3, push rod 4.
Composition graphs 2 and Fig. 3, interior swelling shaft cover 2 is tubular structure, and interior swelling shaft is overlapped 2 outsides, front end and is inwardly recessed formation step groove 2-1, and interior swelling shaft is overlapped 2 front ends and is provided with the open slot 2-2 made from expanding outwardly under the effect of internal expansion power.Interior swelling shaft is overlapped 2 inside, front end and is provided with internal taper hole 2-3, and internal taper hole 2-3 angle of taper is the scope of a, a is 5 ° ~ 20 °.Interior swelling shaft is overlapped 2 inside, rear end and is provided with internal thread hole 2-4, and internal thread hole 2-4 is in identical central line with internal taper hole 2-3 and is throughly connected.Interior swelling shaft is overlapped 2 outsides, rear end and is provided with external screw thread 2-5, and external screw thread is left hand direction, and the internal thread in internal thread hole 2-4 is clockwise direction.
Composition graphs 4 and Fig. 5, back-up ring 3 is ring-type, and described back-up ring 3 excircle dimension is set to Φ 1, identical with part pipe joint A excircle dimension Φ 1.Be provided with endoporus 3-1 in back-up ring 3, endoporus 3-1 inwall is provided with internal thread 3-2, and the internal thread 3-2 in back-up ring 3 is installed on the external screw thread 2-5 in interior swelling shaft cover 2, and the internal thread 3-2 namely in back-up ring 3 is also left hand direction.
Composition graphs 6, push rod 4 is acicular texture, and push rod 4 front portion is provided with cone axis 4-1, and cone axis 4-1 angle of taper is also a, and its angular values is identical with the angle of taper that interior swelling shaft overlaps internal taper hole 2-3 in 2.In the middle part of push rod 4, periphery is provided with external screw thread 4-2, and the internal thread that this external screw thread and interior swelling shaft are overlapped in 2 internal female hole, rear end 2-4 matches, and push rod 4 is installed in the internal thread in interior swelling shaft cover 2, and the external screw thread 4-2 namely on push rod 4 is also clockwise direction.Push rod 4 rear portion is provided with butterfly handle 4-3.
Rubber sealing ring 1 is installed on interior swelling shaft and overlaps on the step groove 2-1 of 2 front ends, back-up ring 3 is installed on interior swelling shaft and overlaps on the external screw thread 2-5 of 2 rear ends, push rod 4 penetrates from the internal thread hole 2-4 of interior swelling shaft cover 2, by rotating forward push rod 4, make interior swelling shaft overlap 2 front ends to expand outwardly, thus make rubber sealing ring 1 swelling in part pipe joint A inwall.
The operating procedure of source nipple extending device is as follows:
1, survey part pipe joint dimension of inner and outer diameters, select corresponding rubber sealing ring 1, interior swelling shaft cover 2, back-up ring 3.
2, rubber sealing ring 1, back-up ring 3, push rod 4 are arranged on interior swelling shaft cover 2, interior swelling shaft is overlapped 2 front ends to stretch into part pipe joint and scrape in flush end, turn clockwise push rod 4, it is made to produce relative to interior swelling shaft cover 2 track moved inwards, make interior swelling shaft overlap 2 front ends to expand outwardly, thus make rubber sealing ring 1 swelling in part pipe joint inwall.Namely the connection of part pipe joint and this device is completed, can by the back-up ring 3 position Set and Positioning in this device on welding equipment.
3, after part pipe joint docking welding operation terminates, be rotated counterclockwise push rod 4, this device can be scraped flush end inwall from part pipe joint and extract, namely complete the disassembling section of source nipple extending device.
Part pipe joint is before groove docking welding operation, the source nipple extending device provided with the use of the utility model carries out spreading to it, the effective gripping section length of part pipe joint on welding equipment can be ensured, thus significantly improve pipe joint postwelding linearity.To the spout diameter of different bore, rubber sealing ring, back-up ring, the liner axle sleeve of assembling correspondingly-sized can be selected, there is very high practicality and versatility, be convenient to workshop large scale investment and use.
Claims (9)
1. a source nipple extending device, it is characterized in that: comprise interior swelling shaft cover (2), rubber sealing ring (1) is located on the step groove (2-1) of interior swelling shaft cover (2) front end, back-up ring (3) is located at interior swelling shaft cover (2) rear end, it is inner that interior swelling shaft cover (2) is located at by push rod (4), during rotation push rod (4), interior swelling shaft cover (2) front end expands outwardly, and rubber sealing ring (1) swelling is in pipe joint inwall.
2. a kind of source nipple extending device as claimed in claim 1, it is characterized in that: described interior swelling shaft cover (2) is tubular structure, interior swelling shaft cover (2) outside, front end is inwardly recessed and forms described step groove (2-1), and interior swelling shaft cover (2) front end is provided with the open slot (2-2) made from expanding outwardly under the effect of internal expansion power; Interior swelling shaft cover (2) inside, front end is provided with internal taper hole (2-3), interior swelling shaft cover (2) inside, rear end is provided with internal thread hole (2-4), and internal thread hole (2-4) is coaxial with internal taper hole (2-3) and be throughly connected; Interior swelling shaft cover (2) outside, rear end is provided with external screw thread (2-5).
3. a kind of source nipple extending device as claimed in claim 2, it is characterized in that: the external screw thread (2-5) of described interior swelling shaft cover (2) outside, rear end is left hand direction, the internal thread in the internal thread hole (2-4) of described interior swelling shaft cover (2) inside, rear end is clockwise direction.
4. a kind of source nipple extending device as claimed in claim 2 or claim 3, it is characterized in that: described back-up ring (3) is ring-type, described back-up ring (3) excircle dimension is identical with described pipe joint excircle dimension; Endoporus (3-1) is provided with in back-up ring (3), endoporus (3-1) inwall is provided with internal thread (3-2), and back-up ring (3) is connected by internal thread (3-2) and the external screw thread (2-5) in described interior swelling shaft cover (2).
5. a kind of source nipple extending device as claimed in claim 4, is characterized in that: the internal thread (3-2) in described back-up ring (3) is left hand direction.
6. a kind of source nipple extending device as claimed in claim 2 or claim 3, it is characterized in that: described push rod (4) is acicular texture, push rod (4) front portion is provided with cone axis (4-1), periphery, push rod (4) middle part is provided with external screw thread (4-2), push rod (4) is connected with the internal thread in described interior swelling shaft cover (2) by external screw thread (4-2), and push rod (4) rear portion is provided with butterfly handle (4-3).
7. a kind of source nipple extending device as claimed in claim 6, is characterized in that: the external screw thread (4-2) on described push rod (4) is clockwise direction.
8. a kind of source nipple extending device as claimed in claim 1, it is characterized in that: the internal taper hole (2-3) in described interior swelling shaft cover (2) is identical with the angle of taper of the cone axis (4-1) in described push rod (4), is a.
9. a kind of source nipple extending device as claimed in claim 8, is characterized in that: the scope of described a is 5 ° ~ 20 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520434438.0U CN204893270U (en) | 2015-06-23 | 2015-06-23 | Nozzle stub connects long device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520434438.0U CN204893270U (en) | 2015-06-23 | 2015-06-23 | Nozzle stub connects long device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204893270U true CN204893270U (en) | 2015-12-23 |
Family
ID=54915482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520434438.0U Active CN204893270U (en) | 2015-06-23 | 2015-06-23 | Nozzle stub connects long device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204893270U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109469782A (en) * | 2017-09-07 | 2019-03-15 | 南宁市富久信息技术有限公司 | A kind of gas stove gas-tpe fitting |
-
2015
- 2015-06-23 CN CN201520434438.0U patent/CN204893270U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109469782A (en) * | 2017-09-07 | 2019-03-15 | 南宁市富久信息技术有限公司 | A kind of gas stove gas-tpe fitting |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2388179A (en) | Pipe coupling | |
| CN209278692U (en) | Detachable seamless steel pipe with sliding shifting block | |
| CN204893270U (en) | Nozzle stub connects long device | |
| CN104149328A (en) | Inner diameter expander for external butt fusion of butt-joint positions of large-diameter plastic pipelines | |
| CN202316817U (en) | Pipeline orifice expander | |
| CN205437653U (en) | Pipe interfacing apparatus | |
| CN106180806A (en) | Pipeline perforating equipment and pipeline perforating method | |
| CN206869394U (en) | The coaxial localization tool of internal diameter of the pipeline | |
| CN205363142U (en) | Pipe positioning core axle | |
| CN203448462U (en) | Integrated device for pipe orifice reshaping and detection and pipeline nitrogen passage | |
| CN103953291B (en) | A kind of Rhizoma Sparganii circular arc fin friction welding type drilling rod and welding method thereof | |
| CN104889272A (en) | Retrusive tube expander | |
| CN203068018U (en) | Rapid sealing connector device of broken pipe | |
| CN205261091U (en) | Oil pipe joint | |
| CN203973222U (en) | A kind of for processing the turning attachment of articulation | |
| CN203637038U (en) | Special-shaped-fabric-strengthened rubber hose depoling tooling | |
| CN107520283B (en) | Interior bulging formula conduit circularity finishing fixture | |
| CN204062255U (en) | Jacket pipe high pressure joint flange | |
| CN210702150U (en) | Pipeline flaring device | |
| CN206257385U (en) | A kind of flexible pipe fitting | |
| CN203822188U (en) | Three-edge arc-shaped flange friction welding type drill stem | |
| CN204127523U (en) | Jacket pipe low-pressure continuous acting flange | |
| CN203868543U (en) | High-elasticity retractable water pipe with gradients | |
| CN203023731U (en) | Oil channel plugging structure | |
| CN201964059U (en) | Micro-irrigation pipe connector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |