CN105402446A - Y-shaped lifting type check valve - Google Patents
Y-shaped lifting type check valve Download PDFInfo
- Publication number
- CN105402446A CN105402446A CN201510850430.7A CN201510850430A CN105402446A CN 105402446 A CN105402446 A CN 105402446A CN 201510850430 A CN201510850430 A CN 201510850430A CN 105402446 A CN105402446 A CN 105402446A
- Authority
- CN
- China
- Prior art keywords
- valve
- control end
- seat
- ring
- check valve
- 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
-
- 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
- F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/12—Covers for housings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The invention relates to the technical field of the check valve industry, in particular to a Y-shaped lifting type check valve which comprises a valve body, a valve seat and a bonnet. The valve seat and a bonnet pretightening plate are arranged in an inner cavity of the control end of the valve body, a valve clack is fixedly arranged on the upper surface of the valve seat, a key groove is formed in the side wall of the valve clack, and the key groove is fixedly connected with the inner cavity of the valve body through a feather key. The valve clack is fixedly connected with the bonnet through a cylindrical spring, and the bonnet pretightening plate and the bonnet are connected through full-thread studs. A segmented positioning ring, a backing ring and a sealing ring are embedded into the inner cavity of the control end. The taper angle of a seat sealing cone is 40 degrees, and the taper angle of a valve sealing cone is 50 degrees. When the Y-shaped lifting type check valve is used, the check valve is good in airtightness and free of leakage, and sealing faces are free of abrasion and scratches; operation torque is small, opening and closing are flexible, and compared with similar products, the check valve has a high Cv value. The Y-shaped lifting type check valve has the advantages of being simple in structure, reasonable in arrangement, low in manufacturing cost and the like.
Description
Technical field
The present invention relates to safety check industry technology field, particularly a kind of Y shape Lift check 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 Lift check valve is valve comparatively common in safety check, jam when common Y shape rise-fall type returns valve 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 produces moment of torsion to the return spring that is arranged on flap, causes adverse effect to spring, 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 Lift check 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 Lift check 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 Lift check valve of the present invention, comprise valve body, valve seat and valve gap, described valve body is provided with control end, entrance point and outlet end, the inner chamber of described control end is provided with valve seat, and it also includes Full Thread FT stud, and the upper surface of described valve seat is fixedly installed flap, the sidewall of described flap is provided with keyway, and this keyway is fixedly connected by the inner chamber of dive key and valve body; The inner chamber of described flap is embedded with cylindrical spring, top and the valve gap of described cylindrical spring are fixedly connected, the port of described control end is fixedly installed valve gap pretension plate, described Full Thread FT stud one end is threaded with the screw of valve gap mutually through after the through hole of valve gap pretension plate, and the described Full Thread FT stud the other end is threaded mutually with nut; The draw-in groove of described control end inner chamber is embedded with split fix ring, and split fix ring is arranged between valve gap pretension plate and valve gap; Described control end internal chamber wall is embedded with gasket ring and seal ring; Along the axis of control end, seal ring is arranged between gasket ring and split fix ring; Footpath along control end is always seen, gasket ring, seal ring are arranged between valve gap and the internal chamber wall of valve body; The seat sealing cone of described valve seat matches with the valve seal conical surface of valve body, and the cone angle of seat sealing cone is 40 degree, and the cone angle of the valve seal conical surface is 50 degree.
Further, the bottom of described cylindrical spring is embedded in the boss of valve seat upper surface.
Further, the center screw on described valve gap pretension plate surface has been threaded lifting bolt.
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;
Fig. 2 is the structural representation of valve body;
Fig. 3 is the structural representation that valve seat is connected with flap.
Description of reference numerals: 1, valve body; 1-1, the valve seal conical surface; 2, valve seat; 2-1, seat sealing cone; 3, dive key; 4, flap; 4-1, keyway; 5, cylindrical spring; 6, valve gap; 7, gasket ring; 8, seal ring; 9, split fix ring; 10, valve gap pretension plate; 11, Full Thread FT stud; 12, nut; 13, lifting bolt.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.
As Figure 1-3, a kind of Y shape Lift check valve of the present invention, comprise valve body 1, valve seat 2 and valve gap 6, described valve body 1 is provided with control end, entrance point and outlet end, the inner chamber of described control end is provided with valve seat 2, it also includes Full Thread FT stud 11, the upper surface of described valve seat 2 is fixedly installed flap 4, the sidewall of described flap 4 is provided with keyway 4-1, this keyway 4-1 is fixedly connected by dive key 3 inner chamber with valve body 1, prevents the jam in the rotation of flap 4 and lifting process.The inner chamber of described flap 4 is embedded with cylindrical spring 5, top and the valve gap 6 of described cylindrical spring 5 are fixedly connected, the port of described control end is fixedly installed valve gap pretension plate 10, described Full Thread FT stud 11 one end is threaded with the screw of valve gap 6 mutually through after the through hole of valve gap pretension plate 10, and described Full Thread FT stud 11 the other end is threaded mutually with nut 12; The draw-in groove of described control end inner chamber is embedded with split fix ring 9, and split fix ring 9 is arranged between valve gap pretension plate 10 and valve gap 6; Described control end internal chamber wall is embedded with gasket ring 7 and seal ring 8; Along the axis of control end, seal ring 8 is arranged between gasket ring 7 and split fix ring 9; Footpath along control end is always seen, gasket ring 7, seal ring 8 are arranged between the internal chamber wall of valve gap 6 and valve body 1.
The seat sealing cone 2-1 of described valve seat 2 matches with the valve seal conical surface 1-1 of valve body 1, and the cone angle of seat sealing cone 2-1 is 40 degree, and the cone angle of valve seal conical surface 1-1 is 50 degree; Valve valve base sealing adopts line contact sealing.
Further, the bottom of described cylindrical spring 5 is embedded in the boss of valve seat 2 upper surface.
Further, the center screw on described valve gap pretension plate 10 surface has been threaded lifting bolt 13.
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 Lift check valve, comprise valve body (1), valve seat (2) and valve gap (6), described valve body (1) is provided with control end, entrance point and outlet end, the inner chamber of described control end is provided with valve seat (2), it is characterized in that: it also includes Full Thread FT stud (11), the upper surface of described valve seat (2) is fixedly installed flap (4), the sidewall of described flap (4) is provided with keyway (4-1), and this keyway (4-1) is fixedly connected by the inner chamber of dive key (3) with valve body (1); The inner chamber of described flap (4) is embedded with cylindrical spring (5), top and the valve gap (6) of described cylindrical spring (5) are fixedly connected, the port of described control end is fixedly installed valve gap pretension plate (10), described Full Thread FT stud (11) one end is threaded with the screw of valve gap (6) mutually through after the through hole of valve gap pretension plate (10), and described Full Thread FT stud (11) the other end is threaded mutually with nut (12); The draw-in groove of described control end inner chamber is embedded with split fix ring (9), and split fix ring (9) is arranged between valve gap pretension plate (10) and valve gap (6); Described control end internal chamber wall is embedded with gasket ring (7) and seal ring (8); Along the axis of control end, seal ring (8) is arranged between gasket ring (7) and split fix ring (9); Footpath along control end is always seen, gasket ring (7), seal ring (8) are arranged between the internal chamber wall of valve gap (6) and valve body (1); The seat sealing cone (2-1) of described valve seat (2) matches with the valve seal conical surface (1-1) of valve body (1), and the cone angle of seat sealing cone (2-1) is 40 degree, and the cone angle of the valve seal conical surface (1-1) is 50 degree.
2. a kind of Y shape Lift check valve according to claim 1, is characterized in that: the bottom of described cylindrical spring (5) is embedded in the boss of valve seat (2) upper surface.
3. a kind of Y shape Lift check valve according to claim 1, is characterized in that: the center screw on described valve gap pretension plate (10) surface has been threaded lifting bolt (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510850430.7A CN105402446A (en) | 2015-11-30 | 2015-11-30 | Y-shaped lifting type check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510850430.7A CN105402446A (en) | 2015-11-30 | 2015-11-30 | Y-shaped lifting type check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105402446A true CN105402446A (en) | 2016-03-16 |
Family
ID=55468111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510850430.7A Pending CN105402446A (en) | 2015-11-30 | 2015-11-30 | Y-shaped lifting type check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105402446A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782524A (en) * | 2016-05-03 | 2016-07-20 | 孙留红 | Pressure-limiting valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2455965Y (en) * | 2000-12-14 | 2001-10-24 | 中国人民解放军第五七一九工厂阀门分厂 | Ceramic throttling cutoff valve |
| CN2469278Y (en) * | 2001-03-12 | 2002-01-02 | 武汉大禹阀门制造有限公司 | Quick-action closing check valve |
| CN203286062U (en) * | 2013-06-07 | 2013-11-13 | 南通国电电站阀门有限公司 | Supercritical lifting check valve |
| CN103557339A (en) * | 2013-11-20 | 2014-02-05 | 天津市卡尔斯阀门有限公司 | Novel oxygen valve anti-static device |
| CN205331519U (en) * | 2015-11-30 | 2016-06-22 | 营口埃斯威特阀门有限公司 | Y rising -down check valve that appears |
-
2015
- 2015-11-30 CN CN201510850430.7A patent/CN105402446A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2455965Y (en) * | 2000-12-14 | 2001-10-24 | 中国人民解放军第五七一九工厂阀门分厂 | Ceramic throttling cutoff valve |
| CN2469278Y (en) * | 2001-03-12 | 2002-01-02 | 武汉大禹阀门制造有限公司 | Quick-action closing check valve |
| CN203286062U (en) * | 2013-06-07 | 2013-11-13 | 南通国电电站阀门有限公司 | Supercritical lifting check valve |
| CN103557339A (en) * | 2013-11-20 | 2014-02-05 | 天津市卡尔斯阀门有限公司 | Novel oxygen valve anti-static device |
| CN205331519U (en) * | 2015-11-30 | 2016-06-22 | 营口埃斯威特阀门有限公司 | Y rising -down check valve that appears |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782524A (en) * | 2016-05-03 | 2016-07-20 | 孙留红 | Pressure-limiting valve |
| CN105782524B (en) * | 2016-05-03 | 2018-11-20 | 孙留红 | pressure limiting 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 |
Application publication date: 20160316 |
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| WD01 | Invention patent application deemed withdrawn after publication |