CN2775430Y - Check valve with flow direction indication - Google Patents
Check valve with flow direction indication Download PDFInfo
- Publication number
- CN2775430Y CN2775430Y CN 200520022795 CN200520022795U CN2775430Y CN 2775430 Y CN2775430 Y CN 2775430Y CN 200520022795 CN200520022795 CN 200520022795 CN 200520022795 U CN200520022795 U CN 200520022795U CN 2775430 Y CN2775430 Y CN 2775430Y
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- China
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- valve body
- check valve
- flow
- valve core
- flows
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- Expired - Fee Related
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Abstract
The utility model discloses a check valve with flow direction indication, which can be widely used for controlling the unidirectional flow of the liquid in pipelines of hydraulic systems in petrochemical industry, and comprises a valve body 3 and a check valve core component 9 arranged in the valve body 3, wherein the check valve core component 9 is arranged in the upstream flow channel of the valve body 3, and the downstream flow channel of the valve body 3 is provided with a flow direction indicating device 2. The check valve with the structure can make forward or backward bilateral deflection under the impulse of the liquid, and a pointer thereof can indicate the liquid flow direction simultaneously. Thus, the utility model can monitor the flow and the flow direction of the liquid in the hydraulic system; the flow direction indicating device can send out early warning prompt in time when the liquid flows along the downstream flow channel of the check valve to the oil inlet through the oil outlet of the valve body and backflows. Not only the management level of liquid delivery in pipelines of the entire hydraulic system can be improved but also the check valve has simple structure and easy maintenance.
Description
Technical field
The utility model relates to a kind of check valve, and particularly a kind of band that is used for petroleum chemical industry hydraulic system controlling plumbing fixtures liquid one-way flow flows to the check valve of indication.
Background technique
At present, the liquid reverse flow of carrying for controlling plumbing fixtures liquid one-way flow and preventing in the hydraulic system of petroleum chemical industry is provided with check valve between the upstream canal of the conveyance conduit of being everlasting and the downstream canal.This check valve is made up of the valve body with filler opening, oil outlet, valve seat, spool, spring and Sealing, by the keying of spool and the size of open amount, controls connecting or disconnecting of filler opening and oil outlet.Its deficiency is: after long-term the use, when wearing and tearing of the component generation burn in the valve or pipeline generation seepage, be difficult in time find, carry out early warning; Its result will bring bad influence to production.
The model utility content
Technical problem to be solved in the utility model provides and a kind ofly not only can monitor the pipeline flow direction, and the band simple in structure, easy to maintenance that can in time send early warning flows to the check valve of indication.
The utility model band flows to the check valve of indication, comprising: valve body and the check valve core assembly that places valve body.Wherein: the check valve core assembly is positioned at the valve body upstream canal, is provided with in the valve body downstream canal and flows to indicating device.
The utility model band flows to the check valve of indication, wherein: flow to indicating device and comprise and flow to responsor, sealing cover and flow to indicator panel.Flow to perpendicular being fixed in the valve body of responsor and downstream canal axis; Flow to responsor comprise upper bed-plate, lower bottom base and be positioned in the middle of it and and its semicircle column that fuses; The external cylindrical surface of semicircle column matches with valve body, the internal surface of semicircle column parallels with the downstream canal axis, on the medial axis rotatingshaft is housed at upper bed-plate, lower bottom base, on rotatingshaft, be provided with plate washer, torque spring is sleeved on the rotatingshaft, the two ends of torque spring can be connected with upper bed-plate with plate washer respectively, also can be connected with lower bottom base with plate washer respectively; Upper bed-plate is stretched out in the upper end of rotatingshaft, and driving disc is installed on it, is provided with a pair of driving disc permanent magnet in driving disc upper edge diametric(al), and driving disc permanent magnet and plate washer are positioned at same plane; Sealing cover is positioned at and flows to the top of responsor and be fixed on the valve body, and the center is provided with supporting axle on sealing cover, flows to indicator panel and supporting axle and rotates equippedly, flows to two and the corresponding indicator panel permanent magnet of driving disc permanent magnet also are housed on the indicator panel.
The utility model band flows to the check valve of indication, wherein: flow to responsor and valve body by being positioned at the restraining groove that flows to responsor semicircle column external cylindrical surface and matching with the positive stop key that is arranged on valve body.
The utility model band flows to the check valve of indication, and wherein: valve body can be " " font, check valve core assembly and the coaxial installation of upstream canal; Valve body also can for
Font, upstream canal and downstream canal on same axis, the check valve core assembly and the downstream canal axis between angle β be in 25 °-35 ° the valve body.
Flow to the further improvement of the check valve of indication as the utility model band, wherein: the check valve core assembly comprises piston valve core and the valve seat that matches with it, Returnning spring and the spool gland that links together with valve body.The internal surface of the outer surface of piston valve core and spool gland slides equipped, Returnning spring is inserted between piston valve core and the spool gland, the outer surface of piston valve core is provided with guiding gutter or is provided with the water conservancy diversion through hole on spool gland end face, and an end of guiding gutter passes to the tail end of piston valve core cylindrical shell, and the other end passes to the upper end of piston valve core cylindrical shell.
By said structure, in the valve body downstream canal, be provided with the indicating device that flows to vertical with the valve axis direction, that can show flow direction in time.Like this, check valve with this structure is installed in hydraulic system, when ducted liquid normally from the upstream canal of conveyance conduit after the valve body filler opening flows to oil outlet, take advantage of a situation when flowing from the downstream canal of conveyance conduit again, this flows to the indication that indicating device can be instant and shows the flow of fluid trend; But, in case the upstream hydraulic system of check valve break down, as: during pipeline generation seepage, it flows to indicating device and will not indicate and show; When in case the component generation burn into wearing and tearing in the check valve etc. damage, cause the downstream canal of liquid along conveyance conduit from check valve after the valve body oil outlet flows to filler opening, again when the contrary gesture of the upstream canal of conveyance conduit flows backwards, this flows to indicating device and will oppositely indicate and show and send early warning.In a word, the check valve with said structure has not only improved the managerial skills that the hydraulic system pipeline liquid is carried, and it is simple in structure, be convenient to safeguard.
Description of drawings
Fig. 1 is the check valve structural representation that the utility model band flows to indication;
Fig. 2 is an A-A cut-away view among Fig. 1;
Fig. 3 is a B-B cut-away view among Fig. 1;
Fig. 4 is a C-C cut-away view among Fig. 4;
Fig. 5 is the check valve second embodiment schematic representation that the utility model band flows to indication.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described further.
Shown in Fig. 1,2, the utility model band flows to the check valve of indication, comprising: valve body 3 that is made of filler opening 4, oil outlet 1 and the check valve core assembly 9 that places valve body 3.This check valve core assembly 9 is positioned at valve body 3 upstream canals, and in valve body 3 downstream canals, be provided with and can either monitor in the hydraulic system flow of fluid trend, component that again can be in valve because of burn into wearing and tearing etc. break down make that liquid in time sends early warning when the contrary gesture of conveyance conduit flows backwards flow to indicating device 2.
Wherein: shown in Fig. 3,4, flow to indicating device 2 and comprise and flow to responsor 28, sealing cover 18 and flow to indicator panel 24.Flow to responsor 28 and perpendicular being fixed in the valve body 3 of downstream canal axis, and flow to responsor 28 and valve body 3 fixes by restraining groove and cooperatively interacting of positive stop key 5; Flow to responsor 28 comprise upper bed-plate 16, lower bottom base 12 and be positioned at upper bed-plate 16, lower bottom base 12 in the middle of both and and its semicircle column 27 that fuses; The external cylindrical surface of semicircle column 27 matches with valve body 3, and the internal surface of semicircle column 27 parallels with valve body 3 downstream canal axis; At upper bed-plate 16, the rotatingshaft 14 that parallels with valve body 3 downstream canal axis is housed on the medial axis of lower bottom base 12, and on rotatingshaft 14, be provided with the plate washer that can rotate 15 that is fixed together with it, torque spring 13 is sleeved on the rotatingshaft 14, its two ends are connected with upper bed-plate 16 or are connected with lower bottom base 12 with plate washer 15 respectively with plate washer 15 respectively, upper bed-plate 16 is stretched out in the upper end of rotatingshaft 14, be equipped with on it to drive and flow to the driving disc 17 that indicator panel 24 rotates, its diametric(al) is provided with a pair of driving disc permanent magnet 26 in driving disc 17 upper edges, and driving disc permanent magnet 26 and plate washer 15 are positioned at same plane; Sealing cover 18 is positioned at and flows to the top of responsor 28 and be sealedly connected and fixed together with valve body 3, and the center is provided with supporting axle 20 on sealing cover 18, flows to indicator panel 24 and installs and rotate equipped with supporting axle 20; In order to guarantee driving disc 17 and to flow to indicator panel 24 and can rotate synchronously, two and driving disc permanent magnet 26 corresponding indicator panel permanent magnets 23 also are housed flowing on the indicator panel 24.Like this, when pipeline has flow of fluid, promptly can drive above-mentioned plate washer 15 and rotatingshaft 14 and overturn forward or backwards, thereby the driving disc 17 that drives with rotatingshaft 14 coaxial settings rotates synchronously with it along valve body 3 downstream canal axis; Because the magnetic line of force of the driving disc permanent magnet 26 on the driving disc 17 can pass sealing cover 18 and attract each other with the indicator panel permanent magnet that flows to indicator panel 24 23 generations that are arranged on above the sealing cover 18, so also just driven and flowed to indicator panel 24 and do driven synchronous rotation with above-mentioned plate washer 15, this moment is from flowing to the pointer deflection direction on the indicator panel 24, and promptly to ducted flow of fluid trend normally whether tracing observation timely.
Shown in Fig. 1,5, needs according to hydraulic system layout of beam line actual conditions, when valve body 3 of the present utility model can be designed as " " font, that is: vertical mutually between the upstream canal of valve body 3 and the downstream canal, check valve core assembly 9 and the coaxial installation of the upstream canal of valve body 3; Valve body 3 of the present utility model also can be designed as
Font, that is: the upstream canal of valve body 3 and downstream canal on same axis, check valve core assembly 9 and the downstream canal axis between angle β be in 25 °-35 ° the valve body 3.
By shown in Figure 2, above-mentioned check valve core assembly 9 comprises piston valve core 7 and the valve seat 6 that matches with piston valve core 7, Returnning spring 11 and and spool gland 10.Spool gland 10 is tightly connected together with valve body 3, and the internal surface of the outer surface of piston valve core 7 and spool gland 10 slides equipped, and Returnning spring 11 is inserted between piston valve core 7 and the spool gland 10.Simultaneously, in order to guarantee that piston valve core 7 can proper functioning, outer surface at piston valve core 7 is provided with the guiding gutter 8 that can in time discharge gas, and an end of this guiding gutter 8 passes to the tail end of piston valve core 7 cylindrical shells, and the other end passes to the upper end of piston valve core 7 cylindrical shells; Or on spool gland 10 end faces, be provided with the water conservancy diversion through hole that in time to discharge gas.
During manufacturing, above-mentioned to flow to indicating device 2 simple in structure in order to make, easy for installation, valve body 3 and flow to responsor 28 and fix by being arranged on positive stop key 5 in the valve body 3 and the restraining groove that flows to responsor 28 semicircle columns 27 external cylindrical surfaces that is positioned at that matches with it.But can adopting by the gland 21 with display window and decorative cover 19, transparent visual element 22, sealing cover 18 forms; Wherein: the bottom surface of gland 21 is a steel disk seat 25, and being rotationally connected with supporting axle 20 on its upper surface flows to indicator panel 24, and this flows to indicator panel 24 upper surfaces and is provided with the pointer sign, and its lower surface is installed indicator panel permanent magnet 23; But transparent visual element 22 be positioned at flow to indicator panel 24 above, and be placed on the boss of gland 21 inwalls; But decorative cover 19 be positioned at transparent visual element 22 above, and be fixed together with gland 21.In order to improve sealability of the present utility model, piston valve core 7 is made into has closed end and its outer surface is the taper ladder shaft shoulder, valve seat 6 is the seal ring that is set directly on valve body 3 internal surfaces, thereby makes an end of piston valve core 7 and valve body 3 internal surfaces form sealing pair.
During work, when backing down piston valve core 7 under the pressure of check valve at flow of fluid of the utility model band flow direction indication, liquid promotes plate washer 15, makes plate washer 15 along the synchronous deflection of the flow direction of liquid, and plate washer 15 drives rotatingshafts 14 and driving disc 17 deflects; Again because driving disc permanent magnet 26 on the driving disc 17 and the effect that flows to the magnetic line of force of the indicator panel permanent magnet 23 on the indicator panel 24, and then also just driven and flow to indicator panel 24 synchronous deflections, that is: reach from the deflection that flows to indicator panel 24 and flow to purpose of indicating.When flow of fluid stops, piston valve core 7 resets under the effect of own wt and Returnning spring 11 and closes, prevent that liquid from flowing backwards, under the effect of plate washer 15 own wts and torque spring 13, reset and indicate and make zero, made things convenient for production management and flow to indicator panel 24.
Claims (7)
1. one kind with the check valve that flows to indication, comprise: valve body (3) and place the check valve core assembly (9) of described valve body (3), it is characterized in that: described check valve core assembly (9) is positioned at valve body (3) upstream canal, is provided with in described valve body (3) downstream canal and flows to indicating device (2).
2. flow to the check valve of indication according to the described band of claim 1, it is characterized in that: the described indicating device (2) that flows to comprises and flows to responsor (28), sealing cover (18) and flow to indicator panel (24), describedly flow to responsor (28) and perpendicular being fixed in the described valve body (3) of downstream canal axis, the described responsor (28) that flows to comprises upper bed-plate (16), lower bottom base (12) and be positioned in the middle of it and and its semicircle column (27) that fuses, the external cylindrical surface of described semicircle column (27) matches with valve body (3), the internal surface of described semicircle column (27) parallels with described downstream canal axis, in described upper bed-plate (16), lower bottom base (12) is equipped with rotatingshaft (14) on the medial axis, on described rotatingshaft (14), be provided with plate washer (15), torque spring (13) is sleeved on the described rotatingshaft (14), its two ends are connected with upper bed-plate (16) or lower bottom base (12) with plate washer (15) respectively, upper bed-plate (16) is stretched out in the upper end of described rotatingshaft (14), driving disc (17) is installed on it, diametric(al) is provided with a pair of driving disc permanent magnet (26) in described driving disc (17) upper edge, described driving disc permanent magnet (26) and plate washer (15) are positioned at same plane, described sealing cover (18) is positioned at and describedly flows to the top of responsor (28) and be fixed on the valve body (3), the center is provided with supporting axle (20) on described sealing cover (18), the described indicator panel (24) that flows to is equipped with described supporting axle (20) rotation, and described the flow direction also is equipped with two and the corresponding indicator panel permanent magnet of driving disc permanent magnet (26) (23) on the indicator panel (24).
3. flow to the check valve of indication according to the described band of claim 2, it is characterized in that: described responsor (28) and the valve body (3) of flowing to is by being positioned at the restraining groove that flows to responsor (28) semicircle column (27) external cylindrical surface and matching with the positive stop key that is arranged on valve body (3) (5).
4. flow to the check valve of indication according to the described band of claim 3, it is characterized in that: described valve body (3) is " "
Font, described check valve core assembly (9) and the coaxial installation of upstream canal.
5. flow to the check valve of indication according to the described band of claim 3, it is characterized in that: described valve body (3) is
Font, upstream canal and downstream canal on same axis, described check valve core assembly (9) and the downstream canal axis between angle β be in 25 °-35 ° the valve body (3).
6. flow to the check valve of indicating according to claim 4 or 5 described bands, it is characterized in that: the valve seat (6) that described check valve core assembly (9) comprises piston valve core (7) and matches with it, Returnning spring (11) and the spool gland (10) that links together with valve body (3), the internal surface of the outer surface of described piston valve core (7) and spool gland (10) slides equipped, described Returnning spring (11) is inserted between piston valve core (7) and the spool gland (10), the outer surface of described piston valve core (7) is provided with guiding gutter (8), one end of this guiding gutter (8) passes to the tail end of piston valve core (7) cylindrical shell, and the other end passes to the upper end of piston valve core (7) cylindrical shell.
7. flow to the check valve of indicating according to claim 4 or 5 described bands, it is characterized in that: described check valve core assembly (9) comprises piston valve core (7) and valve seat (6), Returnning spring (11) that matches with it and the spool gland (10) that links together with valve body (3), the internal surface of the outer surface of described piston valve core (7) and spool gland (10) slides equipped, described Returnning spring (11) is inserted between piston valve core (7) and the spool gland (10), is provided with the water conservancy diversion through hole on spool gland (10) end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520022795 CN2775430Y (en) | 2005-02-02 | 2005-02-02 | Check valve with flow direction indication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520022795 CN2775430Y (en) | 2005-02-02 | 2005-02-02 | Check valve with flow direction indication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2775430Y true CN2775430Y (en) | 2006-04-26 |
Family
ID=36749747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520022795 Expired - Fee Related CN2775430Y (en) | 2005-02-02 | 2005-02-02 | Check valve with flow direction indication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2775430Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734506A (en) * | 2011-04-12 | 2012-10-17 | 大连大高阀门股份有限公司 | Swing check valve of nuclear first-level forged steel belt position indicator |
| CN102853596A (en) * | 2011-06-27 | 2013-01-02 | 浙江三花股份有限公司 | Electronic expansion valve |
| US9285038B2 (en) | 2011-06-27 | 2016-03-15 | Zhejiang Sanhua Co., Ltd. | Flow control valve |
| US9435457B2 (en) | 2011-06-27 | 2016-09-06 | Zhejiang Sanhua Co., Ltd. | Flow regulating valve |
| US9506677B2 (en) | 2011-06-27 | 2016-11-29 | Zhejiang Sanhua Co., Ltd. | Electronic expansion valve |
| CN111677934A (en) * | 2020-04-22 | 2020-09-18 | 余姚市大隆空压机配件有限公司 | Water flow indicator applicable to turbid media |
-
2005
- 2005-02-02 CN CN 200520022795 patent/CN2775430Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734506A (en) * | 2011-04-12 | 2012-10-17 | 大连大高阀门股份有限公司 | Swing check valve of nuclear first-level forged steel belt position indicator |
| CN102853596A (en) * | 2011-06-27 | 2013-01-02 | 浙江三花股份有限公司 | Electronic expansion valve |
| WO2013000396A1 (en) * | 2011-06-27 | 2013-01-03 | 浙江三花股份有限公司 | Electronic expansion valve |
| CN102853596B (en) * | 2011-06-27 | 2015-02-18 | 浙江三花股份有限公司 | Electronic expansion valve |
| US9285038B2 (en) | 2011-06-27 | 2016-03-15 | Zhejiang Sanhua Co., Ltd. | Flow control valve |
| US9383027B2 (en) | 2011-06-27 | 2016-07-05 | Zhejiang Sanhua Co., Ltd. | Electronic expansion valve |
| US9435457B2 (en) | 2011-06-27 | 2016-09-06 | Zhejiang Sanhua Co., Ltd. | Flow regulating valve |
| US9506677B2 (en) | 2011-06-27 | 2016-11-29 | Zhejiang Sanhua Co., Ltd. | Electronic expansion valve |
| CN111677934A (en) * | 2020-04-22 | 2020-09-18 | 余姚市大隆空压机配件有限公司 | Water flow indicator applicable to turbid media |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |