CN203453483U - Multileveled rotary wear-resisting lift check valve - Google Patents
Multileveled rotary wear-resisting lift check valve Download PDFInfo
- Publication number
- CN203453483U CN203453483U CN201320566376.XU CN201320566376U CN203453483U CN 203453483 U CN203453483 U CN 203453483U CN 201320566376 U CN201320566376 U CN 201320566376U CN 203453483 U CN203453483 U CN 203453483U
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- valve
- flap
- clack
- valve clack
- sealing ring
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- Expired - Fee Related
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Abstract
The utility model provides a multileveled rotary wear-resisting lift check valve. The multileveled rotary wear-resisting lift check valve comprises a valve body, a valve clack sealing ring, a valve clack, a splitting ring, a valve clack cover, a valve rod, a valve cover and a hand wheel, wherein the valve body is firmly connected with the valve cover by a nut and a stud; the valve clack is arranged in the valve body; the valve rod penetrates through the valve cover; one end of the valve rod is connected with the valve clack and the other end of the valve rod is connected with the hand wheel; the splitting ring is arranged at he bottom of the valve rod; the valve clack cover is arranged at the upper end of the valve clack; a valve seat is arranged on a position between a water inlet and a water outlet in the valve body; the valve clack can be arranged on the valve seat in an openable manner; the valve clack sealing ring is arranged on the end face, matched with the valve seat, of the valve clack; the valve clack sealing ring is in a multileveled plug type tapered surface structure composed of a stainless steel sealing gasket and flexible graphite. According to the multileveled rotary wear-resisting lift check valve, a soft or hard combined sealing manner is adopted to form complementation on the sealing surface of the valve seat, so that the sealing performance is better than the sealing effect of a traditional valve clack.
Description
Technical field
The utility model belongs to field of check valves, is specifically related to a kind of multi-level rotating wear-resistant Lift check valve.
Background technique
Safety check is the valve that can automatically stop fluid to flow backwards.The flap of safety check is opened under fluid pressure action, and fluid flows to outlet side from suction side.When suction side pressure is during lower than outlet side, flap automatically closes to prevent that fluid from flowing backwards under the factor effects such as fluid pressure difference, gravity own.Check valve structure is simple, compact, good seal performance, and withstand voltage height, is mainly used in preventing medium back flow, is a kind of automatic valve that prevents medium back flow that relies on medium active force.
Model utility content
The purpose of this utility model is to provide a kind of sealability better multi-level rotating wear-resistant Lift check valve.
The utility model is achieved by the following technical solution:
A kind of multi-level rotating wear-resistant Lift check valve, it is characterized in that, comprise valve body, valve clack sealing ring, flap, divided ring, valve clack cover, valve rod, valve gap and handwheel, valve body and valve gap are fastenedly connected by nut and double-screw bolt, flap is arranged in valve body, valve rod is through valve gap, and one end is connected with flap, and the other end is connected with handwheel; The bottom of described valve rod is provided with divided ring, and flap upper end is provided with valve clack cover; Position in described valve body between water intake and water outlet is provided with valve seat, and what flap can folding is arranged on valve seat; On the end face that described flap coordinates with valve seat, be provided with valve clack sealing ring, described valve clack sealing ring is a multilayer plug type cone structure being comprised of stainless steel gasket seal and Expanded graphite.
Further setting of the present utility model is, the bottom of described flap is provided with a pressing plate, and pressing plate is fastenedly connected by screw and flap, and valve clack sealing ring is clamped between flap and pressing plate.
Further setting of the present utility model is, flap is rotatable to be connected on valve rod.
The utlity model has following beneficial effect:
1, adopt plug type conical surface seal flap design, valve clack sealing ring is that stainless steel gasket seal (304)+Expanded graphite is multi-layer sealed, and its sealability has had very large improvement in conventional seals.Adopt the sealing means of soft or hard combination, on the sealing surface of valve seat, form complementation, thereby make sealability better than traditional flap sealing effect.
2, flap is driven and is done straight line elevating movement along fluid center line by valve rod, and flap has also adopted integral-rotation design simultaneously, and flap is subject to medium active force; in pipeline medium, flap can rotate freely, and avoids flap to be subject to the power at a certain position; cause excessively and wash away, can well protect valve clack sealing ring.
3, flap is the design of valve with changeable valve seat sealing surface, after the screw coming loose on pressing plate, can realize quick-replaceable valve clack sealing ring, shortens service cycle.
Accompanying drawing explanation
Fig. 1 is the structural drawing of multi-level rotating wear-resistant Lift check valve described in the utility model;
In figure: valve body 1, pressing plate 2, screw 3, valve clack sealing ring 4, flap 5, divided ring 6, valve clack cover 7, nut 8, double-screw bolt 9, valve rod 10, Stem Mut 11, valve gap 12, handwheel 13.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
As shown in Figure 1, the utility model provides a kind of multi-level rotating wear-resistant Lift check valve, comprise valve body 1, valve clack sealing ring 4, flap 5, divided ring 6, valve clack cover 7, valve rod 10, valve gap 12 and handwheel 13, valve body 1 is fastenedly connected by nut 8 and double-screw bolt 9 with valve gap 12, flap 5 is arranged in valve body 1, valve rod 10 is through valve gap 12, and one end is connected with flap 5, and the other end is connected with handwheel 13; Valve rod 10 is arranged on valve gap 12 by Stem Mut 11.
The bottom of described valve rod 10 is provided with divided ring 6, and flap 5 upper ends are provided with valve clack cover 7; Position in described valve body 1 between water intake and water outlet is provided with valve seat, and what flap 5 can folding is arranged on valve seat; On the end face that described flap 5 coordinates with valve seat, be provided with valve clack sealing ring 4, described valve clack sealing ring 4 is a multilayer plug type cone structure being comprised of stainless steel gasket seal and Expanded graphite.The sealing means of this soft or hard combination forms complementation, thereby makes sealability better than traditional flap sealing effect on sealing surface.
The bottom of described flap 5 is provided with a pressing plate 2, and pressing plate 2 is fastenedly connected by screw 3 and flap 5, and valve clack sealing ring 4 is clamped between flap 5 and pressing plate 2.When needs are changed valve clack sealing ring 4, after the screw 3 coming loose on pressing plate 2, can realize quick-replaceable, shorten service cycle.
Flap 5 is flexibly connected with valve rod 10, and in rectilinear direction interlock, flap 5 also can rotate freely around self axis simultaneously with valve rod 10.Make like this flap 5 both can drive and do straight line elevating movement along fluid center line by valve rod 10, can rotate freely again, avoid flap 5 to be subject to the power at a certain position, cause excessively and wash away, can well protect valve clack sealing ring 4.
It is apparent to one skilled in the art that the utility model can be changed into various ways, and such change is not thought and departed from scope of the present utility model.All so apparent modifications of the technician to described field, within being included in the scope of this claim.
Claims (3)
1. a multi-level rotating wear-resistant Lift check valve, it is characterized in that, comprise valve body (1), valve clack sealing ring (4), flap (5), divided ring (6), valve clack cover (7), valve rod (10), valve gap (12) and handwheel (13), valve body (1) is fastenedly connected by nut (8) and double-screw bolt (9) with valve gap (12), flap (5) is arranged in valve body (1), valve rod (10) is through valve gap (12), and one end is connected with flap (5), and the other end is connected with handwheel (13); The bottom of described valve rod (10) is provided with divided ring (6), and flap (5) upper end is provided with valve clack cover (7); Position in described valve body (1) between water intake and water outlet is provided with valve seat, and what flap (5) can folding is arranged on valve seat; On the end face that described flap (5) coordinates with valve seat, be provided with valve clack sealing ring (4), described valve clack sealing ring (4) is a multilayer plug type cone structure being comprised of stainless steel gasket seal and Expanded graphite.
2. multi-level rotating wear-resistant Lift check valve according to claim 1, it is characterized in that, the bottom of described flap (5) is provided with a pressing plate (2), pressing plate (2) is fastenedly connected by screw (3) and flap (5), and valve clack sealing ring (4) is clamped between flap (5) and pressing plate (2).
3. multi-level rotating wear-resistant Lift check valve according to claim 1, is characterized in that, flap (5) is rotatable to be connected on valve rod (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320566376.XU CN203453483U (en) | 2013-09-12 | 2013-09-12 | Multileveled rotary wear-resisting lift check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320566376.XU CN203453483U (en) | 2013-09-12 | 2013-09-12 | Multileveled rotary wear-resisting lift check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203453483U true CN203453483U (en) | 2014-02-26 |
Family
ID=50133359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320566376.XU Expired - Fee Related CN203453483U (en) | 2013-09-12 | 2013-09-12 | Multileveled rotary wear-resisting lift check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203453483U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018094666A1 (en) * | 2016-11-24 | 2018-05-31 | 周玉春 | Proportionally-regulated three-way change-over valve |
-
2013
- 2013-09-12 CN CN201320566376.XU patent/CN203453483U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018094666A1 (en) * | 2016-11-24 | 2018-05-31 | 周玉春 | Proportionally-regulated three-way change-over valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140226 Termination date: 20160912 |