CN105370935A - Y-shaped stop-check valve - Google Patents
Y-shaped stop-check valve Download PDFInfo
- Publication number
- CN105370935A CN105370935A CN201510820454.8A CN201510820454A CN105370935A CN 105370935 A CN105370935 A CN 105370935A CN 201510820454 A CN201510820454 A CN 201510820454A CN 105370935 A CN105370935 A CN 105370935A
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- CN
- China
- Prior art keywords
- valve
- valve body
- packing
- ring
- valve gap
- Prior art date
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/50—Preventing rotation of valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
The invention relates to the technical field of the valve body industry, in particular to a Y-shaped stop-check valve. The Y-shaped stop-check valve comprises a valve body, a valve seat, a valve rod and a valve clack. A valve cover is embedded in the valve body through a valve cover pre-tightening plate. The valve body is connected with a driving device sequentially through four stand columns and a stand column flange. The valve rod sequentially penetrates through the valve cover and the stand column flange and then is fixedly connected with the driving device. The valve rod is sequentially sleeved with a first packing pad, packing, a second packing pad, a packing bushing and a packing pressing plate from inside to outside. The packing and the two packing pads are both mounted in a packing box arranged on the valve cover. A segmental locating ring, a backing ring and a sealing ring are arranged between the valve body and the valve cover. The sealing ring is located between the backing ring and the segmental locating ring. When the Y-shaped stop-check valve is used, the sealing performance of the Y-shaped stop-check valve is good, and a sealing surface is free of friction loss and scratches; the Y-shaped stop-check valve is convenient and rapid to disassemble, assemble and maintain, small in operation torque and flexible in opening and closing, and has a high Cv value compared with similar products. The Y-shaped stop-check valve has the advantages of being simple in structure, reasonable in setting, low in manufacturing cost and the like.
Description
Technical field
The present invention relates to valve body industry technology field, particularly a kind of Y shape screw down nonreturn valve.
Background technique
Valve is the flow of streaming flow in confinement tube, the element of pressure.Be divided into according to application purpose difference and cut off class valve and regulate class valve etc.Cut off class valve and be used as the flowing of cut-out fluid, usually have gate valve, stop valve, safety check etc.
Wherein, Y shape screw down nonreturn valve is valve comparatively common in safety check, and it not only has the function of stop valve, also has the function of safety check.Jam when common Y shape screw down nonreturn valve is in order to prevent flap from moving, at the runner exit place that valve body lumen coordinates with flap, a guiding rib is all set, the setting of this muscle not only reduces the Flow area in outlet port, but also increase the resistance of convection cell, the Cv value of valve is made a big impact.Flap is at opening process with after opening, and because the percussion of medium can produce rotation, this rotation can exert an adverse impact to the sealing of valve and operation.
Therefore be necessary to carry out technological innovation further to the structure of existing Y shape screw down nonreturn valve.
Summary of the invention
The object of the invention is to the defect for prior art and deficiency, provide a kind of structure simple, Y shape screw down nonreturn valve reasonable in design, easy to use.
For achieving the above object, the technical solution used in the present invention is:
A kind of Y shape screw down nonreturn valve of the present invention, include valve body, described valve body is provided with control end, entrance point and outlet end, and described body cavity is provided with valve seat, and described valve seat one end is fixedly connected with valve rod, and the bottom of described valve rod is nested is provided with flap; It also includes column flange and drive unit, and the control end of described valve body is embedded with valve gap pretension plate, and described valve gap pretension plate is embedded with valve gap, and described valve cover surfaces is circumferentially provided with locking nut; Described pre-loading screw bear against the end face of valve gap pretension plate after being threaded with locking screw parent phase; Described drive unit is fixedly connected by socket head screw and column flange, and described column flange is fixedly connected by socket head screw and four column one end, and the end face of four column the other ends and valve body control end is fixedly connected; Described valve rod is fixedly connected with drive unit through after valve gap, column flange successively; Described valve rod is nested with the first Packing seat, filler, the second Packing seat, filler pressing sleeve and hold-down grid outward successively by inner, described first Packing seat, filler, the second Packing seat, filler pressing sleeve are arranged between valve rod and valve gap inner chamber, and filler and two Packing seats are all contained in the stuffing box that valve gap arranges; Described Full Thread FT stud one end is threaded with nut mutually through after the through hole of hold-down grid, and the described Full Thread FT stud the other end is threaded with locking screw parent phase; Be provided with split fix ring between described valve body and valve gap, this split fix ring is fixedly fastened in the draw-in groove of valve body; Be provided with gasket ring and seal ring between described valve body and the bottom of valve gap, seal ring is between gasket ring and split fix ring.
Further, the bell mouth angle at the upper sealing position of described valve gap is 100 degree, and the angle of the boss shoulder of described valve rod lower end is 90 degree.
Further, the both sides of described flap are provided with keyway, and keyway is connected with body cavity wall by dive key.
After adopting said structure, beneficial effect of the present invention is: when using of the present invention, the good seal performance of this device, does not leak, and sealing surface is without abrasion and scratch; In process of production, can material be saved, reduce costs; Dismounting is fast easy to maintenance, and operation moment of torsion is little, opens and closes flexibly, has higher Cv value compared with similar products.It is simple that the present invention has structure, arranges rationally, the advantages such as fabricating cost is low.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Description of reference numerals:
1, valve body; 2, valve seat; 3, dive key; 4, flap; 5, valve rod; 5-1, boss are takeed on;
6, valve gap; 6-1, upper sealing position; 7, Packing seat; 8, filler; 9, locking nut;
10, pre-loading screw; 11, column; 14, socket head screw; 15, column flange;
16, drive unit; 17, socket head screw; 18, Full Thread FT stud; 19, nut;
20, hold-down grid; 21, filler pressing sleeve; 22, valve gap pretension plate; 23, split fix ring;
24, gasket ring; 25, seal ring.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.
As shown in Figure 1, a kind of Y shape screw down nonreturn valve of the present invention, includes valve body 1, described valve body 1 is provided with control end, entrance point and outlet end, described valve body 1 inner chamber is provided with valve seat 2, and described valve seat 2 one end is fixedly connected with valve rod 5, and the bottom of described valve rod 5 is nested is provided with flap 4;
It is characterized in that: it also includes column flange 15 and drive unit 16, the control end of described valve body 1 is embedded with valve gap pretension plate 22, and described valve gap pretension plate 22 is embedded with valve gap 6, and described valve gap 6 surface is circumferentially provided with locking nut 9; The end face of valve gap pretension plate 22 is bear against after described pre-loading screw 10 is threaded mutually with locking nut 9;
Described drive unit 16 is fixedly connected by socket head screw 17 and column flange 15, and described column flange 15 is fixedly connected by socket head screw 14 and four column 11 one end, and the end face of four column 11 the other ends and valve body 1 control end is fixedly connected;
Described valve rod 5 successively through valve gap 6, after column flange 15 and drive unit 16 be fixedly connected, the valve rod 5 upper end Stem Mut trapezoidal thread built-in with drive unit 16 is connected; Described valve rod 5 is nested with the first Packing seat 7, filler 8, second Packing seat 7, filler pressing sleeve 21 and hold-down grid 20 outward successively by inner, described first Packing seat 7, filler 8, second Packing seat 7, filler pressing sleeve 21 are arranged between valve rod 5 and valve gap 6 inner chamber, and filler 8 and two Packing seats 7 are all contained in the stuffing box that valve gap 6 arranges; Described Full Thread FT stud 18 one end is threaded with nut 19 mutually through after the through hole of hold-down grid 20, and described Full Thread FT stud 18 the other end is threaded mutually with locking nut 9;
Here it should be noted that, locking nut 9 has multiple, and one of them locking nut 9 is threaded mutually with Full Thread FT stud 18, and other locking nut 9 is threaded mutually with pre-loading screw 10;
Be provided with split fix ring 23 between described valve body 1 and valve gap 6, this split fix ring 23 is fixedly fastened in the draw-in groove of valve body 1; Be provided with gasket ring 24 and seal ring 25 between described valve body 1 and the bottom of valve gap 6, seal ring 25 is between gasket ring 24 and split fix ring 23.
Further, the bell mouth angle of the upper sealing position 6-1 of described valve gap 6 is 100 degree, and the angle of the boss of described valve rod 5 lower end shoulder 5-1 is 90 degree, when is formationed seals and the boss of valve rod 5 lower end to take on 5-1 be line contact sealing.Flat key 3 is installed in the both sides of flap 4, and the sealing surface angle of flap 4 is 40 degree, and the sealing surface angle of valve body 1 is 50 degree, and the sealing of valve 1, valve seat 2 adopts line contact sealing equally; The all Sealings of valve all adopt wear-resisting, resistant material to make, and extend the working life of valve.
Further, the both sides of described flap 4 are provided with keyway, and keyway is connected with valve body 1 internal chamber wall by dive key 3, and its effect prevents flap 4 from rotating and jam in switching process; When valve opening or closedown, flap 4 moves up and down along guiding groove, and two guide ring surface build-up welding Si Taili cemented carbide of flap 4 cylindrical, prevent the adhesion under worst hot case and wearing and tearing.
This device can reduce operation moment of torsion, and make valve switch light and flexible, valve operation simple, common working state is that valve rod is in opening state, and now valve has the function of Lift check valve.When needs are by valve positive closing, the handwheel rotated clockwise on drive unit 16 gets final product throttle down.
When using of the present invention, the good seal performance of this device, does not leak, and sealing surface is without abrasion and scratch; In process of production, can material be saved, reduce costs; Dismounting is fast easy to maintenance, and operation moment of torsion is little, opens and closes flexibly, has higher Cv value compared with similar products.In addition, this structure is simple, reasonable in design, low cost of manufacture.
The above is only better embodiment of the present invention, therefore all equivalences done according to structure, feature and the principle described in patent claim of the present invention change or modify, and are included in patent claim of the present invention.
Claims (3)
1. a Y shape screw down nonreturn valve, include valve body (1), described valve body (1) is provided with control end, entrance point and outlet end, described valve body (1) inner chamber is provided with valve seat (2), described valve seat (2) one end is fixedly connected with valve rod (5), and the bottom of described valve rod (5) is nested is provided with flap (4);
It is characterized in that: it also includes column flange (15) and drive unit (16), the control end of described valve body (1) is embedded with valve gap pretension plate (22), described valve gap pretension plate (22) is embedded with valve gap (6), and described valve gap (6) surface is circumferentially provided with locking nut (9); Described pre-loading screw (10) bear against the end face of valve gap pretension plate (22) after being threaded mutually with locking nut (9);
Described drive unit (16) is fixedly connected by socket head screw (17) and column flange (15), described column flange (15) is fixedly connected by socket head screw (14) and four column (11) one end, and the end face of four column (11) the other ends and valve body (1) control end is fixedly connected;
Described valve rod (5) is fixedly connected with drive unit (16) afterwards through valve gap (6), column flange (15) successively; Described valve rod (5) is nested with the first Packing seat (7), filler (8), the second Packing seat (7), filler pressing sleeve (21) and hold-down grid (20) outward successively by inner, described first Packing seat (7), filler (8), the second Packing seat (7), filler pressing sleeve (21) are arranged between valve rod (5) and valve gap (6) inner chamber, and filler 8 and two Packing seats 7 are all contained in the stuffing box that valve gap 6 arranges; Described Full Thread FT stud (18) one end is threaded with nut (19) mutually through after the through hole of hold-down grid (20), and described Full Thread FT stud (18) the other end is threaded mutually with locking nut (9);
Be provided with split fix ring (23) between described valve body (1) and valve gap (6), this split fix ring (23) is fixedly fastened in the draw-in groove of valve body (1); Be provided with gasket ring (24) and seal ring (25) between the bottom of described valve body (1) and valve gap (6), seal ring (25) is positioned between gasket ring (24) and split fix ring (23).
2. a kind of Y shape screw down nonreturn valve according to claim 1, is characterized in that: the bell mouth angle of the upper sealing position (6-1) of described valve gap (6) is 100 degree, and the angle of boss shoulder (5-1) of described valve rod (5) lower end is 90 degree.
3. a kind of Y shape screw down nonreturn valve according to claim 1, it is characterized in that: the both sides of described flap (4) are provided with keyway, keyway is connected with valve body (1) internal chamber wall by dive key (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510820454.8A CN105370935A (en) | 2015-11-24 | 2015-11-24 | Y-shaped stop-check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510820454.8A CN105370935A (en) | 2015-11-24 | 2015-11-24 | Y-shaped stop-check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105370935A true CN105370935A (en) | 2016-03-02 |
Family
ID=55373391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510820454.8A Pending CN105370935A (en) | 2015-11-24 | 2015-11-24 | Y-shaped stop-check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105370935A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361423A (en) * | 2018-04-23 | 2018-08-03 | 大连大高阀门股份有限公司 | The electronic bellows angle type stop check valve of core level-one heavy caliber |
| CN112032370A (en) * | 2020-09-01 | 2020-12-04 | 超达阀门集团股份有限公司 | Anti-sticking Y-shaped check valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1540218A2 (en) * | 2003-03-25 | 2005-06-15 | Amtrol Inc. | Valve for a non-refillable pressurized container |
| CN201795063U (en) * | 2010-09-28 | 2011-04-13 | 上海良工阀门厂有限公司 | Anti-rotation structure of stop valve |
| CN102022551A (en) * | 2010-12-29 | 2011-04-20 | 大连大高阀门有限公司 | Large-diameter forged Y-style stop valve |
| CN102748479A (en) * | 2012-06-20 | 2012-10-24 | 南通高中压阀门有限公司 | Energy-saving and low-flow-resistance Y-type shutoff valve |
| CN205350465U (en) * | 2015-11-24 | 2016-06-29 | 营口埃斯威特阀门有限公司 | Y stop check valve that appears |
-
2015
- 2015-11-24 CN CN201510820454.8A patent/CN105370935A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1540218A2 (en) * | 2003-03-25 | 2005-06-15 | Amtrol Inc. | Valve for a non-refillable pressurized container |
| CN201795063U (en) * | 2010-09-28 | 2011-04-13 | 上海良工阀门厂有限公司 | Anti-rotation structure of stop valve |
| CN102022551A (en) * | 2010-12-29 | 2011-04-20 | 大连大高阀门有限公司 | Large-diameter forged Y-style stop valve |
| CN102748479A (en) * | 2012-06-20 | 2012-10-24 | 南通高中压阀门有限公司 | Energy-saving and low-flow-resistance Y-type shutoff valve |
| CN205350465U (en) * | 2015-11-24 | 2016-06-29 | 营口埃斯威特阀门有限公司 | Y stop check valve that appears |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361423A (en) * | 2018-04-23 | 2018-08-03 | 大连大高阀门股份有限公司 | The electronic bellows angle type stop check valve of core level-one heavy caliber |
| CN112032370A (en) * | 2020-09-01 | 2020-12-04 | 超达阀门集团股份有限公司 | Anti-sticking Y-shaped check valve |
| CN112032370B (en) * | 2020-09-01 | 2022-05-24 | 超达阀门集团股份有限公司 | Anti-sticking Y-shaped check valve |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160302 |