CN1234992C - Combustion gas pipes house lead-in connecting equipment - Google Patents
Combustion gas pipes house lead-in connecting equipment Download PDFInfo
- Publication number
- CN1234992C CN1234992C CN 03133885 CN03133885A CN1234992C CN 1234992 C CN1234992 C CN 1234992C CN 03133885 CN03133885 CN 03133885 CN 03133885 A CN03133885 A CN 03133885A CN 1234992 C CN1234992 C CN 1234992C
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- threeway body
- pipe clamp
- thread
- wall
- respectively equipped
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Abstract
The present invention relates to combustion gas pipe house lead-in connecting equipment which comprises a fixed pipe clip and has the essential structure that the present invention also comprises two three-way pipe bodies A and B. The inner wall edges of the side ports of the two three-way pipe body A and B are provided with flare bevel grooves which are outsides inclined, and sealing rings are embedded in the flare bevel grooves. The inner wall edge of the front end of a cylindrical pipe clip on the fixed pipe clip is provided with a flare bevel groove which is outwards inclined, and a sealing ring is embedded in the bevel groove. The upper port of the three-way pipe body A is in threaded connection with the inner wall of the cylindrical pipe clip on the fixed pipe clip and is locked by a set of locking nuts which are arranged on the three-way pipe body A, the side port of the three-way pipe body A is in threaded connection with the outer wall of the upper port of the three-way pipe body B and is locked by a set of locking nuts which are arranged on the three-way pipe body B, and bracing rings are arranged in the locking nuts. The present invention has the advantages of quick operation and good sealing performance, can effectively avoid the leakage of a joint of a gas pipeline, and can ensure the quality of the installation work of the gas pipeline.
Description
(1) technical field
The present invention relates to a kind of pipeline connecting device, particularly relate to a kind of gas pipeline house lead in connection set.
(2) background technique
Coal gas is a kind of clear energy sources, and easy to use, and the vast cities and towns of China have been extensive use of piped gas, do civilian and industrial raw material, in gas pipeline engineering, constantly adopt new material, new product, new technology, new process at present, improved Safety performance widely, installation has also made things convenient for a lot.But also have different defectives, particularly garden pipeline and house lead in inlet tube joint in the part, adopt sometimes and nip off big caliber cast iron tube material, tubule spare adopts steel short tube external sealing plug Placement (seeing schematic representation).This kind mode adds man-hour at the steel short tube, and there are the following problems at two ends screw thread place: 1, zinc-plated anticorrosive coat is destroyed; 2, cause the thick tube wall attenuate of about 3mm; 3, must there be screw thread to leak outside after the installation; 4, pipe fitting connects rough and uneven in surfacely herein, can not get effective preservative treatment, very easily is subjected to the burn into corrosion after burying ground; So that in a single day pipeline is subjected to the external force effect, just easily rupture at the screw thread place.
(3) summary of the invention
At above defective, the invention provides a kind of good sealing effect, be difficult for leakage gas, and the screw thread place is difficult for taking place the gas pipeline house lead in connection set of fracture.
The technological scheme that adopts is:
Gas pipeline house lead in connection set comprises a fixedly pipe clamp, and its structure outline is that it also comprises threeway body A and threeway body B and two locking nuts.The upper end-hole of threeway body A and threeway body B is respectively equipped with outside thread, and its lower end mouth is respectively equipped with internal thread, and its side ports is respectively equipped with internal thread and outside thread.The inner wall edge of threeway body A and threeway body B side ports has outward-dipping flare groove, and flare groove has been embedded in seal ring.Fixedly be respectively equipped with internal thread and outside thread on the inner and outer wall of the cylindric pipe clamp on the pipe clamp, its front inner wall edge has outward-dipping flare groove, groove has been embedded in seal ring, the inner thread of the cylindric pipe clamp on the upper end-hole of threeway body A and the fixing pipe clamp is connected, and locked by a locking nut that is nested with on threeway body A, its side ports is connected with the outer wall thread of threeway body B upper end-hole, and locked by a locking nut that is nested with on threeway body B, the front portion of locking nut inwall is provided with internal thread, its rear portion is provided with the packing ring chamber, the indoor bracing ring that is equipped with of packing ring.The outer wall thread that is nested with the cylindric pipe clamp on the locking nut on the threeway body A and fixing pipe clamp is connected, the locking nut that is nested with on threeway body B upper end-hole outer wall is connected with the outer wall thread of threeway body A side ports, and the lower end mouth of threeway body A and threeway body B is screwed into a plug respectively.
The upper end-hole of above-mentioned threeway body A also can be by a connecting tube and the fixing cylindrical pipe card connection on the pipe clamp, the two ends of connecting tube are respectively equipped with outside thread, the inner thread of the cylindric pipe clamp on one end of connecting tube and the fixing pipe clamp is connected, and locked by a locking nut that is nested with on connecting tube, the other end of connecting tube is connected with the inner thread of threeway body A upper end-hole, and is locked by a locking nut that is nested with on connecting tube.
Major advantage of the present invention:
1, cancelled steel pipe fittings, the pipe fitting material all adopts spheroidal graphite cast iron or malleable cast iron, thereby has improved corrosion resistance greatly.
2, reduce interface, thereby reduced the gas leakage point.
3, adopting the connection of internal sealing plug rigidity to be connected dual mode with the spigot and socket type sealed soft combines.Thereby: 1) reached the double-sealing effect.In case sealing has for the second time been played in internal sealing plug gas leakage, the rubber seal of socket joint inclined-plane.2) when stress produces, make all bearing loads of a plurality of pipe fittings as far as possible, avoided single pipe fitting or part to be subjected to whole deformation under loads or destroyed.3) when rigidity connects inefficacy, flexibly connect and continue to play interconnect function; And can compensate displacement and the deflection that produces because of external force.4) prevent that pipe fitting breaks away from mutually when pipe sedimentation is excessive.
4, installation and maintenance are convenient.Do not need the cast iron tubing of the big caliber formula of nipping off is installed.Only need on the bassoon diameter pipes, bore a regulation aperture, adopt the flexible rubber backing plate to be tightly connected.
5, pipe fitting is designed to general part.As long as inside nominal diameter is identical, all can general, exchange.
6, introduce gas pipeline house lead in connection set special pipe fitting,, can significantly improve construction quality though the engineering cost raising is not remarkable.As major natural disasters do not take place, or artificial outside destroy, be difficult for taking place the gas leakage accident.The harm and the influence that bring because of accident have been reduced.
(4) description of drawings
Fig. 1 is the structural representation of an embodiment of the present invention.
Fig. 2 is the structural representation of locking nut of the present invention.
Fig. 3 is the structural representation of threeway body A of the present invention (B).
Fig. 4 is the another kind of embodiment's of the present invention a structural representation.
(5) embodiment
Embodiment one
As attached illustrated in figures 1 and 2, gas pipeline house lead in connection set of the present invention comprises that threeway body A, B, locking nut 3,4 reach fixedly pipe clamp 5.Threeway body A has identical structure with threeway body B, all have upper end-hole 6, lower end mouth 7 and side ports 8, the upper end-hole 6 of threeway body A and B is respectively equipped with outside thread 9, and its lower end mouth 7 is respectively equipped with internal thread 10, and its side ports 8 is respectively equipped with internal thread 11 and outside thread 12.The inner wall edge of the side ports 8 of threeway body A and threeway body B has outward-dipping flare groove 13, and flare groove 13 has been embedded in seal ring 14.Fixedly be respectively equipped with internal thread 16 and outside thread 17 on the inner and outer wall of the cylindric pipe clamp 15 on the pipe clamp 5, its front inner wall edge has outward-dipping flare groove 18, flare groove 18 has been embedded in seal ring 19, the inner thread of the cylindric pipe clamp 15 on the upper end-hole 6 of threeway body B and the fixing pipe clamp 5 is connected, and its side ports 8 is connected with the outer wall thread of threeway body B upper end-hole 6. Locking nut 3,4 is nested with respectively on the outer wall of the upper end-hole 6 of threeway body A and threeway body B, and the front portion of locking nut 3,4 inwalls is provided with internal thread 20, and its rear portion is provided with packing ring chamber 21, and bracing ring 22 is housed in the packing ring chamber 21.The outer wall thread that is nested with the cylindric pipe clamp 15 on the locking nut 3 on the threeway body A and fixing pipe clamp 5 is connected, the locking nut 4 that is nested with on threeway body B upper end-hole 6 outer walls is connected with the outer wall thread of threeway body A side ports 8, the lower end mouth 7 of threeway body A is screwed into a plug 1, and the lower end mouth of threeway body B is screwed into a plug 2.
Embodiment two
Embodiment two and embodiment one are basic identical, its difference is that the inwall of threeway body A upper end-hole has internal thread 23, and threeway body A is connected with fixing pipe clamp 5 by a connecting tube 24, one end of connecting tube 24 is connected with the inner thread of cylindric pipe clamp 15, and locked by the locking nut 25 that is nested with on connecting tube 24, bracing ring 26 is housed in the locking nut 25, its the other end is connected with the inner thread of threeway body A, and locked by the locking nut 27 that is nested with on connecting tube 24, bracing ring 28 and seal ring 29 are housed in the locking nut 27.
Claims (2)
1, gas pipeline house lead in connection set, comprise a fixedly pipe clamp (5), it is characterized in that: it also comprises threeway body (A) and threeway body (B), the upper end-hole (6) of threeway body (A) and threeway body (B) is respectively equipped with outside thread (9), its lower end mouth (7) is respectively equipped with internal thread (10), its side ports (8) is respectively equipped with internal thread (11) and outside thread (12), the inner wall edge of the side ports (8) of threeway body (A) and threeway body (B) has outward-dipping flare groove (13), flare groove (13) has been embedded in seal ring (14), fixedly be respectively equipped with internal thread (16) and outside thread (17) on the inner and outer wall of the cylindric pipe clamp (15) on the pipe clamp (5), its front inner wall edge has outward-dipping flare groove (18), flare groove (18) has been embedded in seal ring (19), the inner thread of the cylindric pipe clamp (15) on the upper end-hole (6) of threeway body (B) and the fixing pipe clamp (5) is connected, and locked by a locking nut (4) that is nested with on threeway body (B), the side ports (8) of threeway body (B) is connected with the outer wall thread of threeway body (A) upper end-hole (6), and locked by a locking nut (3) that is nested with on threeway body (A), locking nut (3), (4) front portion of inwall is provided with internal thread (20), its rear portion is provided with packing ring chamber (21), and bracing ring (22) is housed in packing ring chamber (21).
2, gas pipeline house lead in connection set, comprise a fixedly pipe clamp (5), it is characterized in that: it also comprises threeway body (A) and threeway body (B), the upper end-hole (6) of threeway body (A) and threeway body (B) is respectively equipped with outside thread (9), and the upper end-hole (6) of threeway body (B) has internal thread; Threeway body (A) and lower end mouth (B) (7) are respectively equipped with internal thread (10), its side ports (8) is respectively equipped with internal thread (11) and outside thread (12), the inner wall edge of the side ports (8) of threeway body (A) and threeway body (B) has outward-dipping flare groove (13), flare groove (13) has been embedded in seal ring (14), fixedly be respectively equipped with internal thread (16) and outside thread (17) on the inner and outer wall of the cylindric pipe clamp (15) on the pipe clamp (5), its front inner wall edge has outward-dipping flare groove (18), flare groove (18) has been embedded in seal ring (19), the side ports (8) of threeway body (B) is connected with the outer wall thread of threeway body (A) upper end-hole (6), and locked by a locking nut (3) that is nested with on threeway body (A), threeway body (B) is connected with cylindric pipe clamp (15) on the fixing pipe clamp (5) by a connecting tube (24), the two ends of connecting tube (24) are respectively equipped with outside thread, the inner thread of the cylindric pipe clamp (15) on one end of connecting tube (24) and the fixing pipe clamp (5) is connected, and locked by a locking nut (25) that is nested with on connecting tube (24), the other end of connecting tube (24) is connected with the inner thread of threeway body (B) upper end-hole (6), and locked by a locking nut (27) that is nested with on connecting tube (24), the lower end mouth (7) of threeway body (A) is screwed into a plug (1), and the lower end mouth of threeway body (B) is screwed into a plug (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03133885 CN1234992C (en) | 2003-07-10 | 2003-07-10 | Combustion gas pipes house lead-in connecting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03133885 CN1234992C (en) | 2003-07-10 | 2003-07-10 | Combustion gas pipes house lead-in connecting equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1570449A CN1570449A (en) | 2005-01-26 |
| CN1234992C true CN1234992C (en) | 2006-01-04 |
Family
ID=34470145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03133885 Expired - Fee Related CN1234992C (en) | 2003-07-10 | 2003-07-10 | Combustion gas pipes house lead-in connecting equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1234992C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1299035C (en) * | 2005-06-10 | 2007-02-07 | 吉林省大地燃气设计有限责任公司 | Safety embedding in wall construction method of indoor fuel gas pipeline and accessory |
| CN104089134A (en) * | 2014-07-21 | 2014-10-08 | 攀钢集团工程技术有限公司 | Three-way pipeline prevented from being scoured by airflow containing dust and blast furnace raw gas device thereof |
-
2003
- 2003-07-10 CN CN 03133885 patent/CN1234992C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1570449A (en) | 2005-01-26 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060104 Termination date: 20140710 |
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| EXPY | Termination of patent right or utility model |