CN201827463U - Spherical flanged joint noise reduction check valve improving tightness - Google Patents
Spherical flanged joint noise reduction check valve improving tightness Download PDFInfo
- Publication number
- CN201827463U CN201827463U CN2010205775244U CN201020577524U CN201827463U CN 201827463 U CN201827463 U CN 201827463U CN 2010205775244 U CN2010205775244 U CN 2010205775244U CN 201020577524 U CN201020577524 U CN 201020577524U CN 201827463 U CN201827463 U CN 201827463U
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- China
- Prior art keywords
- valve
- valve seat
- valve shaft
- flap
- noise reduction
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- 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.)
- Expired - Lifetime
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- Details Of Valves (AREA)
Abstract
The utility model relates to a spherical flanged joint noise reduction check valve improving tightness. The check valve comprises a valve body, a cylindrical valve seat fixedly installed at the water inlet port of the valve body in a sealing way, a central valve shaft arranged between the water inlet port and the water outlet port of the valve body and being capable of sliding up and down, a convex round-cap valve clack being threaded connection with the valve shaft, a spring positioned above and propping against the valve clack, and a valve shaft guide sleeve fixed on the valve body, wherein the upper edge of the cylindrical valve seat is provided with a ringed groove which is internally embedded with a replaceable valve seat O-shaped rubber seal ring; the lower edge of the valve clack at the static state is buckled on the valve seat O-shaped rubber seal ring at the upper edge of the valve seat; the check valve is characterized in that the ringed groove is a swallow-tail-shaped section groove; a valve shaft seal ring is arranged at the seal position between the valve shaft and the top end surface of the valve clack; and a thread sealing glue layer is arranged at the connection thread part between the valve shaft and the valve clack. The check valve has the advantages that the valve seat O-shaped rubber seal ring is firmly installed, and the tightness of the flanged joint noise reduction check valve is wholly improved.
Description
Technical field
The utility model relates to valve technology field, relates in particular to a kind of ball-type flange that improves sealing and connects the noise reduction safety check.
Background technique
It is a kind of one-way fluid valve that the ball-type flange connects the noise reduction safety check, is widely used on field such as petrochemical industry, Ferrous Metallurgy, electric power and city and tall building feedwater, the drainage pipeline networks.Mainly be installed in pump outlet during application, be connected with pipeline, flow backwards in order to prevent medium by flange.Its structure comprises that mainly valve body, fixing seal are installed on the cylindric valve seat of valve inleting water port, are located at valve shaft, the convex surface dome formula flap that is threaded with valve shaft between valve body water inlet and outlet port, are positioned at the flap top and compress the spring of flap and be fixed in valve shaft guide sleeve on the valve body, cylindric valve seat upper edge is provided with the square-section and encircles all grooves, be embedded with Changable type O type rubber seal in the groove, under the state of rest, the flap lower edge is fastened on the seal ring of valve seat upper edge, and blocking-up water passes through.In pipe-line system, after the pump working water outlet, water enters valve body from above-mentioned noise reduction safety check water inlet port, and in the compression of hydraulic action lower spring, flap is opened automatically, and pipeline forms path; After water pump quit work, flap quick closedown under the effect of spring reset elastic force can be eliminated water hammer effectively, prevented that medium from flowing backwards and energy protection equipment; and good seal performance is closed noiseless, and it is little, in light weight to have a volume; fluid resistance is little, endurance, advantages such as life-span length.
The defective that existing ball-type flange connects the existence of noise reduction safety check is: valve seat upper edge Changable type O type rubber seal easily comes off and loses, and causing into, the water port can't seal.In addition, poorly sealed between valve shaft and the flap, easily to leak, the problems referred to above directly influence the proper functioning of valve.
The model utility content
Main purpose of the present utility model is at the problems referred to above, provide a kind of ball-type flange that improves sealing to connect the noise reduction safety check, by changing valve seat upper edge groove structure shape, and set up valve shaft seal ring and screw thread glue at valve shaft and flap connection part, effectively improve the installation soundness of the seal ring of valve seat upper edge, and improve the sealing that flange connects the noise reduction safety check on the whole.
The technological scheme that its technical problem that solves the utility model adopts is:
A kind of ball-type flange that improves sealing connects the noise reduction safety check, comprise valve body, fixing seal is installed on the cylindric valve seat of valve inleting water port, be located at the valve shaft that can slide up and down between valve body water inlet and outlet port, the convex surface dome formula flap that is threaded with valve shaft, being positioned at flap top compresses the spring of flap and is fixed in valve shaft guide sleeve on the valve body, cylindric valve seat upper edge is provided with all grooves of ring, encircle and be embedded with Changable type valve seat O type rubber seal in all grooves, flap lower edge under the state of rest is fastened on the valve seat O type rubber seal of valve seat upper edge, it is characterized in that all grooves of described ring are the swallow-tail form section grooves.
Sealing station at described valve shaft and flap top end is provided with the valve shaft seal ring.
Connecting thread place at described valve shaft and flap is provided with the thread seal glue-line.
The beneficial effects of the utility model are: connect noise reduction check valve receptacle upper edge and encircle all grooves and be arranged to the swallow-tail form cross section owing to will have the ball-type flange now, make valve seat O type rubber seal that soundness is installed and significantly improve, and difficult drop-off, and guarantee its replaceable performance; Especially set up valve shaft seal ring and screw thread glue at valve shaft and flap connection part, the whole sealing with valve shaft and valve seat of flap is improved greatly, guarantee the valve proper functioning.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is an I zoomed-in view among Fig. 1;
Fig. 3 is valve shaft and a flap connection part partial enlarged drawing among Fig. 1.
Among the figure: 1 valve body, 2 valve seats, all grooves of 21 rings, 3 flaps, 4 valve shafts, 5 springs, 6 valve shaft guide sleeves, 7 valve seat O type rubber seal, 8O type rubber seal, 9 screws, 10 water inlet ports, 11 water outlet ports, 12 valve shaft seal rings, 13 thread seal glue-lines.
Below in conjunction with drawings and Examples the utility model is described in detail.
Embodiment
Fig. 1～Fig. 3 illustrates a kind of ball-type flange that improves sealing and connects the noise reduction safety check, comprise valve body 1, fixing seal is installed on the cylindric valve seat 2 of valve inleting water port one 0, be located at 11 of valve inleting water port one 0 and the water outlet ports valve shaft 4 that can slide up and down, the convex surface dome formula flap 3 that is threaded with valve shaft, being positioned at flap 3 tops compresses the spring 5 of flap and is fixed in valve shaft guide sleeve 6 on the valve body, in this example, valve shaft guide sleeve 6 is installed in valve body 1 top, spring 5 is fixed between valve shaft guide sleeve 6 and the flap 3, be provided with O type rubber seal 8 between valve seat 2 and the valve body 1, and fixing by screw 9.Cylindric valve seat 2 upper edges are provided with all grooves 21 of ring, encircle and be embedded with Changable type valve seat O type rubber seal 7 in all grooves 21, flap lower edge under the state of rest is fastened on the valve seat O type rubber seal 7 of valve seat upper edge, it is characterized in that all grooves 21 of above-mentioned ring are swallow-tail form section grooves.Adopt O type rubber seal and swallow-tail form section grooves setting-in cooperating structure, make valve seat insert be difficult to, assembling firmly guarantees sealing.
Sealing station at above-mentioned valve shaft 4 and flap 3 top ends is provided with valve shaft seal ring 12, and valve shaft seal ring 12 is an O type rubber seal.Connecting thread place at above-mentioned valve shaft 4 and flap is provided with thread seal glue-line 13.Like this, the flap 3 and the junction surface of valve shaft 4 are sealed fully.Thereby reach tight seal whole and valve shaft and valve seat after making flap 3 closures, guarantee the reliably working of the ball-type flange connection noise reduction safety check that the utility model provides.
The above only is a preferred embodiment of the present utility model, is not content of the present utility model is done any pro forma restriction.Every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (3)
1. a ball-type flange that improves sealing connects the noise reduction safety check, comprise valve body, fixing seal is installed on the cylindric valve seat of valve inleting water port, be located at the valve shaft that can slide up and down between valve body water inlet and outlet port, the convex surface dome formula flap that is threaded with valve shaft, being positioned at flap top compresses the spring of flap and is fixed in valve shaft guide sleeve on the valve body, cylindric valve seat upper edge is provided with all grooves of ring, encircle and be embedded with Changable type valve seat O type rubber seal in all grooves, flap lower edge under the state of rest is fastened on the valve seat O type rubber seal of valve seat upper edge, it is characterized in that all grooves of described ring are the swallow-tail form section grooves.
2. the ball-type flange of raising sealing according to claim 1 connects the noise reduction safety check, it is characterized in that at the sealing station of described valve shaft and flap top end the valve shaft seal ring being set.
3. the ball-type flange of raising sealing according to claim 1 and 2 connects the noise reduction safety check, it is characterized in that at the connecting thread place of described valve shaft and flap the thread seal glue-line being set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205775244U CN201827463U (en) | 2010-10-26 | 2010-10-26 | Spherical flanged joint noise reduction check valve improving tightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205775244U CN201827463U (en) | 2010-10-26 | 2010-10-26 | Spherical flanged joint noise reduction check valve improving tightness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201827463U true CN201827463U (en) | 2011-05-11 |
Family
ID=43965998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205775244U Expired - Lifetime CN201827463U (en) | 2010-10-26 | 2010-10-26 | Spherical flanged joint noise reduction check valve improving tightness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201827463U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240549A (en) * | 2015-10-30 | 2016-01-13 | 无锡斐冠工业设备有限公司 | Base for bilateral anti-shockwave ventilation round valve and round valve |
| CN107906232A (en) * | 2017-11-13 | 2018-04-13 | 佛山市恒爱网络科技有限公司 | Flange form damping check valve |
| CN112833226A (en) * | 2021-01-22 | 2021-05-25 | 淄博真空泵厂有限公司 | Novel vacuum check valve |
-
2010
- 2010-10-26 CN CN2010205775244U patent/CN201827463U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240549A (en) * | 2015-10-30 | 2016-01-13 | 无锡斐冠工业设备有限公司 | Base for bilateral anti-shockwave ventilation round valve and round valve |
| CN105240549B (en) * | 2015-10-30 | 2018-03-20 | 无锡斐冠工业设备有限公司 | A kind of bilateral shock wave resistance ventilation round valve base and round valve |
| CN107906232A (en) * | 2017-11-13 | 2018-04-13 | 佛山市恒爱网络科技有限公司 | Flange form damping check valve |
| CN112833226A (en) * | 2021-01-22 | 2021-05-25 | 淄博真空泵厂有限公司 | Novel vacuum check valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110511 |
|
| CX01 | Expiry of patent term |