CN102943905B - Check type meter joint - Google Patents
Check type meter joint Download PDFInfo
- Publication number
- CN102943905B CN102943905B CN201210467704.0A CN201210467704A CN102943905B CN 102943905 B CN102943905 B CN 102943905B CN 201210467704 A CN201210467704 A CN 201210467704A CN 102943905 B CN102943905 B CN 102943905B
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- inner core
- adapter
- plug
- ring
- connecting pipe
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Abstract
The invention discloses a check type meter joint, which comprises a joint screw nut and a connecting pipe, wherein the joint screw nut is connected with a meter tool through screw threads, the connecting pipe is used for being connected with a pipe fitting, the part of the inner end of the connecting pipe in contact with the joint screw nut is provided with an annular convex shoulder, the outer end of the joint screw nut is provided with a baffle edge matched with the annular convex shoulder, the end part of the inner end of the connecting pipe is provided with a sealing ring seat, the end part of the outer end of the connecting pipe is provided with screw threads matched with the pipe element in a surrounding way, an inner card of the connecting pipe is provided with an inner core capable of forwards and backwards moving in the axial direction under the external force effect, one end of the inner core is provided with a plug with the surface covered by flexible materials, a retainer ring realizing the sealed matching with the plug is arranged on the inner wall of the connecting pipe, the inner side part on the inner wall of the connecting pipe, near the retainer ring is provided with a circle of annular groove, a cavity is formed in the inner core, the cavity is provided with an opening in the medium circulation direction, and the side wall of the inner core is communicated with the cavity of the inner core for forming a circulation passage for medium circulation. The meter joint has the advantages that the check structure is simple, the circulation area is large, the lockage cannot easily occur, the service life is long, and the cost is saved.
Description
Technical field
The present invention relates to gas, water and jet liquid meter component, especially relate to a kind of meter connector with check function.
Background technique
At present, when using tap water or combustion gas, a gauge table can be installed measure use amount, but in traditional installation process, after entrance point adopts a straight-through ball valve to be connected with a meter connector to the mounting type of gauge table, be connected with the entrance point of gauge table again, thus reach the break-make of gauge table is controlled.In water supply pipe, usually before ball valve, a safety check can be installed, prevent ducted medium from flowing backwards, or cause user's water tower water source water conservancy diversion because the side of water supply cuts off the water, reverse to prevent gauge table or damage.
Adopt these safety check, add ducted connected element, cost is high, and speed of application is slow, also add the potential safety hazards such as leakage.Moreover, existing safety check is usually established in one and is filled in valve body, when reverse circulated, interior plug end and valve body realize being sealed and matched, when forward circulates, flow out from interior plug both sides after medium flows into from interior plug end, medium can only circulate between Nei Sai and valve interior wall, circulation area is little, easily produces blocking; Interior plug is arranged to T font by some valve body, arrange in interior plug rear end a spring with give interior plug one active force forward, the circulation area of this structure has increase, but easily damage, reduce working life, and spring is owing to being in compressive state for a long time, when medium water conservancy diversion moment, it can be stoped to move to interior plug pulling force, causing can not throttle down in time.
Summary of the invention
The present invention, in order to overcome the deficiencies in the prior art, provides that a kind of non-return is timely, circulation area is large, the non-return meter connector of long service life, after adopting this meter connector, can reduce the connected element of gauge table, reduce costs, avoid leaking.
To achieve these goals, the present invention is by the following technical solutions: a kind of non-return meter connector, comprise the Female connector fittings and the adapter for being connected with pipe fitting that are threaded with table tool, adapter is inner is provided with an annular convex shoulder with Female connector fittings contact segment, the outer end of Female connector fittings is provided with the gear edge coordinated with annular convex shoulder, take over inner end and be provided with packing holder, the screw thread matched with pipe fitting is arranged with outside end, outer end, the inner core that can move forward and backward vertically in adapter under External Force Acting is arranged with in described adapter, inner core one end is for having the plug on the surface covered by flexible material, nozzle inner wall is provided with the back-up ring realizing with this plug being sealed and matched, on nozzle inner wall, inside back-up ring, place is provided with a ring annular groove, and interior in-core is formed with a chamber, and chamber is provided with opening along medium circulating direction, and innercore sidewall and its chamber are to form a through-flow channel circulated for medium.
As preferably, the sidewall of described inner core near plug one end and its chamber, to form one for the through-flow channel of medium circulation, make medium one can enter the chamber of inner core by plug, be conducive to the circulation of medium.
Described inner core is evenly equipped with 4 through holes on the sidewall of plug one end, and through hole and chamber form through-flow channel.These 4 through holes are formed and are communicated with chamber, and forms a larger circulation passage, guarantee MEDIA FLOW all freely, also can be that the structure of whole inner core is firmer, not fragile.
Further, the outer surface of described plug is hemispherical dome structure, and back-up ring is provided with plug contacting point the round table surface matched with hemispherical dome structure, increases sealing.
Described back-up ring is located at adapter on inner inwall.
Described back-up ring is located at adapter on the inwall of outer end.
The inwall of described adapter is provided with a stop inner core and shifts out snap ring in adapter.
Further, an annular section is provided with vertically outside described back-up ring.
Further, the edge of described through hole is provided with tangent plane along medium circulating direction.
In sum, the present invention has the following advantages: this meter connector has check function, changes the function singleness of traditional meter connector, has saved cost, and its non-return structure is simple, and non-return is timely, and circulation area is large, not easily blocks, long service life.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of the present invention.
Fig. 2 is partial structurtes schematic diagram of the present invention.
Fig. 3 is the structural representation of another kind of embodiment of the present invention.
Fig. 4 is the structural representation of inner core of the present invention.
Embodiment
In order to make those skilled in the art person better understand the present invention program, below in conjunction with the accompanying drawing in the embodiment of the present invention, clear, complete description is carried out to the technological scheme in the embodiment of the present invention.
As shown in Figure 1, a kind of non-return meter connector, before being installed on table, comprise the Female connector fittings 1 and the adapter 2 for being connected with pipe fitting that are threaded with table tool, adapter 2 is inner is provided with an annular convex shoulder 21 with Female connector fittings 1 contact segment, the outer end of Female connector fittings 1 is provided with the gear that coordinates with annular convex shoulder 21 along 11, the inner end of adapter 2 is provided with packing holder 26, the screw thread matched with pipe fitting is arranged with outside end, outer end, the inner core 3 that can move forward and backward vertically in adapter 2 under External Force Acting is arranged with in described adapter 2, inner core 3 is made of such as copper by metal example, inner core 3 one end is plug 31, plug 31 has the surface covered by rubber seal member, the inwall of adapter 2 one end is provided with a stop inner core and shifts out snap ring in adapter, the inwall of adapter 2 the other end is provided with the back-up ring 22 realizing with this plug 31 being sealed and matched, inner core 3 can move around between back-up ring 22 and snap ring, in the present embodiment, by offering a ring groove 23 at adapter 2 inwall, snap ring is placed in this annular groove 23, for stopping inner core outwards movement, back-up ring 22 is located at adapter 2 on the inwall of outer end, after the present invention is installation table tool, then back-up ring 22 is located at adapter 2 on inner inwall, as shown in Figure 3, on adapter 2 inwall, inside back-up ring 22, place is provided with a ring annular groove 24, the chamber of inner core 3 sidewall and inner core, to form a through-flow channel 34 circulated for medium, in the present embodiment, on the sidewall of plug 31 one end, 4 through holes 35 are evenly offered at inner core 3, as described in Figure 4, be the stereogram of inner core 3, medium is flow chart tool from pipeline, wash inner core open, enter in adapter, flow into inner core chamber 38 from through hole 35, then flow out adapter.The present invention is by arranging the inner core of a boring as interior plug, medium can from the outer wall of inner core nearly 1/2nd area flow to inner core, then from inner core inner chamber flow out adapter, compared with traditional non-return structure, considerably increase circulation area, the chamber of whole inner core is all as circulation passage; And on adapter 2 inwall inside the back-up ring 22 place be provided with a ring annular groove 24, to increase the distance between interior outer core and nozzle inner wall, be supplied to the circulation area that medium is larger.Moreover the area of contact of inner core end and plug is large, when media impingement plug, the whole end of inner core all as keeping out face, improves working life.When medium water conservancy diversion moment, the bottom of media impingement inner core chamber, rushes at back-up ring by whole inner core, coordinates with retaining ring sealing, realize rapid-closure damper.Because the bottom of whole chamber is all as the shock surface of medium, inner core fast moving not only can be made to back-up ring place, and time mobile, inclined rail phenomenon can not occur, also improve its working life.
In the present embodiment, by arranging a boss 29 in inner core end, plug by boss is stuck in interior edge face, thus realizes fixing between plug and inner core end.
In the present embodiment, the outer surface of described plug 31 is hemispherical dome structure, and back-up ring 22 is provided with plug 31 contacting point the round table surface 221 matched with hemispherical dome structure, spheric structure is set, not only can increase sealing, also can increase the velocity of liquid assets of medium, be conducive to medium circulation.
Be provided with an annular section outside described back-up ring 22, namely arrange a round platform conical surface, the edge of through hole 35 is provided with tangent plane along medium circulating direction, is conducive to medium circulation, increases flow velocity.
The present invention by setting up retaining element in meter connector, and meter connector the is annexed effect of safety check, eliminates the connection of safety check, not only reduce construction sequence, improve efficiency, also reduce connected element, save cost, reduce the occurrence probability of leakage accident; Moreover the circulation area of retaining element of the present invention is large, not easily blocks, and structure is simple, long service life.
Obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, should belong to the scope of protection of the invention.
Claims (8)
1. a non-return meter connector, comprise the Female connector fittings (1) and the adapter (2) for being connected with pipe fitting that are threaded with table tool, adapter (2) is inner is provided with an annular convex shoulder (21) with Female connector fittings (1) contact segment, the outer end of Female connector fittings (1) is provided with gear edge (11) coordinated with annular convex shoulder (21), adapter (2) inner end is provided with packing holder, the screw thread matched with pipe fitting is arranged with outside end, outer end, it is characterized in that: be arranged with in the dynamic lower inner core (3) that can move forward and backward vertically in adapter (2) of MEDIA FLOW passband in described adapter (2), inner core (3) one end is for having the plug (31) on the surface covered by flexible material, adapter (2) inwall is provided with the back-up ring (22) realizing with this plug (31) being sealed and matched, adapter (2) inwall is provided with the snap ring for stopping the outside movement of inner core away from plug (31) side, adapter (2) inwall is provided with a ring annular groove (24) near back-up ring (22) inner side place, a chamber (38) is formed in inner core (3), chamber (38) is provided with opening (37) along medium circulating direction, and inner core (3) sidewall is communicated with its chamber (38) to form a through-flow channel (34) circulated for medium.
2. non-return meter connector according to claim 1, it is characterized in that: the sidewall of described inner core (3) near plug (31) one end is communicated with its chamber (38), to form a through-flow channel (34) circulated for medium.
3. non-return meter connector according to claim 2, is characterized in that: described inner core (3) is evenly equipped with 4 through holes (35) on the sidewall of plug (31) one end, and through hole and chamber form through-flow channel.
4. non-return meter connector according to claim 2, it is characterized in that: the outer surface of described plug (31) is hemispherical dome structure, back-up ring (22) is upper is provided with plug (31) contacting point the round table surface (221) matched with hemispherical dome structure.
5. non-return meter connector according to claim 1, is characterized in that: described back-up ring (22) is located at adapter (2) on inner inwall.
6. non-return meter connector according to claim 1, is characterized in that: described back-up ring (22) is located at adapter (2) on the inwall of outer end.
7. non-return meter connector according to claim 6, is characterized in that: described back-up ring (22) outside is provided with an annular section vertically.
8. non-return meter connector according to claim 3, is characterized in that: the edge of described through hole (35) is provided with tangent plane along medium circulating direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210467704.0A CN102943905B (en) | 2012-11-19 | 2012-11-19 | Check type meter joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210467704.0A CN102943905B (en) | 2012-11-19 | 2012-11-19 | Check type meter joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102943905A CN102943905A (en) | 2013-02-27 |
| CN102943905B true CN102943905B (en) | 2015-02-25 |
Family
ID=47726874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210467704.0A Expired - Fee Related CN102943905B (en) | 2012-11-19 | 2012-11-19 | Check type meter joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102943905B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2386276Y (en) * | 1999-08-11 | 2000-07-05 | 协羽机材工业股份有限公司 | Connecting valve for water meter |
| CN201661708U (en) * | 2009-11-23 | 2010-12-01 | 陈文风 | Check valve of meter connector |
| CN201715049U (en) * | 2010-07-09 | 2011-01-19 | 重庆吉川燃气设备有限公司 | Check ball valve with internal threads |
| CN102207214A (en) * | 2010-03-29 | 2011-10-05 | 刘永 | Backflow preventing device for water meter |
| CN202972033U (en) * | 2012-11-19 | 2013-06-05 | 董服义 | Non-return type meter connector |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001027342A (en) * | 1999-07-14 | 2001-01-30 | Hitachi Constr Mach Co Ltd | Valve |
| JP2005226695A (en) * | 2004-02-12 | 2005-08-25 | Aisan Ind Co Ltd | Valve structure and check valve |
| JP2007255059A (en) * | 2006-03-23 | 2007-10-04 | Maezawa Kyuso Industries Co Ltd | Meter direct-coupled cut-off valve |
-
2012
- 2012-11-19 CN CN201210467704.0A patent/CN102943905B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2386276Y (en) * | 1999-08-11 | 2000-07-05 | 协羽机材工业股份有限公司 | Connecting valve for water meter |
| CN201661708U (en) * | 2009-11-23 | 2010-12-01 | 陈文风 | Check valve of meter connector |
| CN102207214A (en) * | 2010-03-29 | 2011-10-05 | 刘永 | Backflow preventing device for water meter |
| CN201715049U (en) * | 2010-07-09 | 2011-01-19 | 重庆吉川燃气设备有限公司 | Check ball valve with internal threads |
| CN202972033U (en) * | 2012-11-19 | 2013-06-05 | 董服义 | Non-return type meter connector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102943905A (en) | 2013-02-27 |
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Granted publication date: 20150225 Termination date: 20211119 |
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| CF01 | Termination of patent right due to non-payment of annual fee |