CN201322106Y - Labor-saving high-sealing plug valve - Google Patents
Labor-saving high-sealing plug valve Download PDFInfo
- Publication number
- CN201322106Y CN201322106Y CNU2008202233472U CN200820223347U CN201322106Y CN 201322106 Y CN201322106 Y CN 201322106Y CN U2008202233472 U CNU2008202233472 U CN U2008202233472U CN 200820223347 U CN200820223347 U CN 200820223347U CN 201322106 Y CN201322106 Y CN 201322106Y
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- valve
- valve body
- handwheel
- high sealing
- loam cake
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- Expired - Lifetime
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Abstract
The utility model relates to a labor-saving high-sealing conical plug valve which comprises a valve body; the valve body is provided with a through channel for media to flow through, a conical valve cavity which is crossed with the channel, a conical valve core which can be arranged in the valve cavity in a rotating way and block the channel when the plug valve is off, and a valve stem which is used to rotate the valve core; the upper end of the valve body is provided with a valve cover; the valve core is a floating conical plug valve core which can move in the valve cavity up and down; the upper end of the valve core is connected with the valve stem by a cylindrical pin, and the bottom is connected with the bottom of the valve body and a plug screw; a sealing ring is inlaid between the valve core and the valve body; a valve cap is fixedly connected with an upper cover and a locating ring; the inner wall of the locating ring fixes a steel ball sleeve which is arranged in a steel ball outside the valve stem; the upper cover is provided with a thrust ball bearing; and the top of the valve stem is provided with a hand wheel gland and a hand wheel. The labor-saving high-sealing plug valve has the advantages of small abrasion, good sealing performance, simple structure, labor saving, high practical value, and is applicable to promotion and application.
Description
Technical field
The utility model relates to a kind of stopcock, relate in particular to a kind of laborsaving high sealing taper cock valve that makes fluid change direction or break-make, straight-through, the threeway that can be applicable to that high-temperature fluctuation, high pressure, high sealing require, four-way etc. manually or mortor operated valve belong to valve technology field.
Background technique
Because simple in structure, switch is rapid, pressure drop is less, stopcock is used widely within the specific limits.The basic structure of existing stopcock comprises component such as handwheel, valve rod, valve body, seal ring, Stem Mut.Its basic principle is that the seal ring in the valve body is close on the outer surface of spool, and the operation handwheel rotates to location place, when the passage on the spool when importing and exporting, stopcock is in opening state.When the passage on the spool when import and export on the valve body become 90 °, stopcock is in closed condition.Seal ring when the prior art stopcock exists owing to work in the valve body is close on the outer surface of spool, realize sealing, and seal ring must have certain compress variation, could guarantee sealing effect.External force operation handwheel that so just must be very big could rotate.And the wearing and tearing of seal ring are also very serious, even there is certain compensation can not reach seal request.Must set up sealing and lubricating film between the conical outer surface of present stopcock and the cone-shaped inner surface of valve pocket, put the axial seal specific pressure in the big end of cock, and the cock spool still keeps identical seal pressure when rotated, so the torque during rotation is big, the wearing and tearing of sealing surface are also big, when being subjected to high temperature impact, vibration can destroy lubricating film, and causing cock to stagnate on the attached valve pocket can't rotary opening and closing; In use, because high temperature or loine pressure raise suddenly, the cock spool was once being thrown off valve pocket, and the pipeline medium is flowed in the Seal cage, may wash away sealing film; Industrial also the appearance promotes the stopcock that presses down after cock is rotated again earlier, as lifting type stopcock and pair action stopcock.But all need above operating device of Second Mate or action more than two, make the valve arrangement complexity, operation inconvenience, so the improved stopcock of this class is not used widely.
Summary of the invention
For solving the above-mentioned defective of prior art, the utility model provides a kind of wearing and tearing little, good airproof performance, laborsaving high sealing taper cock valve simple in structure.
The technical solution of the utility model is achieved by following content:
A kind of laborsaving high sealing stopcock, comprise valve body, it is characterized in that: described valve body is provided with the passage of a perforation of crossing for MEDIA FLOW, the valve pocket of one taper of intersecting with described passage, one rotatably is located at the taper valve core that is used for the described passage of blocking-up under the stopcock closed condition in the valve pocket, with a valve rod that is used for rotational valve core, the upper end of valve body is provided with valve gap; The floating taper cock valve core of described spool for moving up and down at valve pocket, the spool upper end is connected with valve rod by straight pin, the bottom bottom valve body and plug screw be connected, be embedded with seal ring between spool and the valve body; Described valve gap is fixedlyed connected by support with positioning ring with loam cake, and the steel ball cover of establishing steel ball in described positioning ring inwall is incited somebody to action is fixed in outside the valve rod, is provided with thrust ball bearing in the loam cake; Described valve rod top is provided with handwheel gland and handwheel.
Described handwheel, handwheel gland, loam cake, steel ball cover are separately fixed on the Stem Mut of valve rod upper periphery.
Described thrust ball bearing is located between Stem Mut and the loam cake.
Marking closely screw by interior hexagonal awl end between loam cake and the support connects.
Be provided with composite sealing ring between valve gap and the valve rod.
Described composite sealing ring upper end is provided with Gland.
Between described plug screw and the valve body, between valve body and the valve gap and be respectively equipped with O type circle between loam cake and the Stem Mut.
Fixedly connected with double-screw bolt by nut between described valve body and the valve gap.
Described handwheel and handwheel gland are provided with flat key in the position that intersects at Stem Mut.
During the work of this valve,, the face friction has been changed into rolling friction, reduced a lot of surface friction drag, so open and close all laborsaving because design has two dish thrust ball bearing and steel ball structures.Steel ball cover, steel ball, Stem Mut, positioning screwn, the positioning ring that designs in the support of this valve make the operation handwheel drive the Stem Mut rotation, and valve rod drive taper valve core made the rising straight line motion simultaneously.At this moment, the conical internal cavity of valve core outer surface and seal ring and valve body all disengages, and also just can not produce resistance naturally, so has operated very much the labour-saving.When stem movement during to the upper limit position of design, because the effect of positioning ring and steel ball, Stem Mut, it can only rotate, and can only half-twist, is in full-gear this moment.When needs are closed, the counterrotating handwheel, valve rod also can only rotate also at upper limit position at this moment, equally also can only half-twist.After valve rod was rotated in place, because the effect of positioning ring, steel ball, Stem Mut, handwheel drove the Stem Mut rotation, and valve rod drive taper valve core is made the decline straight line motion, and when dropping to the lower position of design, its motion stops, handwheel can only dally, and valve is in closed condition.As seen, no matter stopcock is opened, when still closing, the seal ring that embeds in the conical cavity of its spool and valve body and the conical cavity is all contactless when rotatablely moving, equal moving linearly during contact, so just farthest reduced the area of contact of friction, also just guaranteed surface friction drag for minimum, promptly operation is the most laborsaving.
The utility model wearing and tearing are little, and good airproof performance is simple in structure and laborsaving, has high value of practical, is suitable for applying.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described specifically.As shown in Figure 1, the utility model is a kind of laborsaving high sealing stopcock, comprise valve body 12, described valve body 12 is provided with the passage of a perforation of crossing for MEDIA FLOW, the valve pocket of one taper of intersecting with described passage, one taper valve core 16 and of rotatably being located at the band equalizing orifice that being used under the stopcock closed condition the described passage of blocking-up in the valve pocket is used for the valve rod 3 of rotational valve core 16, and the upper end of valve body 12 is provided with valve gap 11; The floating taper cock valve core of described spool 16 for moving up and down at valve pocket, spool 16 upper ends are connected with valve rod 3 by straight pin 17, and the bottom is connected with valve body 12 bottoms and plug screw 15, is embedded with seal ring 13 between spool 16 and the valve body 12; Described valve gap 11 is fixedlyed connected by support 24 with positioning ring 9 with loam cake 6, and the steel ball cover 23 of establishing steel ball 10 in described positioning ring 9 inwalls are incited somebody to action is fixed in outside the valve rod 3, is provided with thrust ball bearing 5 in the loam cake 6; Described valve rod 3 tops are provided with handwheel gland 1 and handwheel 2.Described handwheel 2, handwheel gland 1, loam cake 6, steel ball cover 23 are separately fixed on the Stem Mut 7 of valve rod 3 upper periphery.Described thrust ball bearing 5 is located between Stem Mut 7 and the loam cake 6.It is fixedly connected to mark closely screw 8 by interior hexagonal awl end between described loam cake 6 and the support 24.Be provided with composite sealing ring 21 between described valve gap 11 and the valve rod 3.Described composite sealing ring 21 upper ends are provided with Gland 22.Be provided with between plug screw 15 and the valve body 12 and be provided with O type circle 18 between O type circle 14, valve body 12 and the valve gap 11, be respectively equipped with O type circle 4 between loam cake 6 and the Stem Mut 7.Be fixed together by nut 19 and double-screw bolt 20 between valve body 12 and the valve gap 11.Handwheel 2 and handwheel gland 1 are provided with flat key 25 in the position that intersects at Stem Mut 7.
Valve rod 3 is connected by straight pin 17 with spool 16 upper ends, is provided with the groove of corresponding import and export and placement seal ring 13 in the valve body 12.Valve gap 11 is connected by double-screw bolt 20 with valve body 12, with 18 sealings of O shape circle, is provided with composite sealing ring 21 in the valve gap 11, compresses by Gland 22, realizes external sealed.By steel ball cover 23, hexagonal awl end Cock screw 8 is realized relative movement in steel ball 10 and the Stem Mut 7, reduces resistance in the support 24.And two dish vertebra power ball bearings 5 of 7 of loam cake 6 and Stem Muts are when handwheel 2 connects together rotation by flat key 25 and Stem Mut 7, can reduce resistance, assurance Stem Mut 7 is done the cock campaign, and valve rod 3 is raised in limited time, can only rotate, after the angle of the structures shape that rotates to steel ball cover 23 and positioning ring 9, can not move again.At this moment, this laborsaving high sealing stopcock just is in the enable possition, the same valve rod 3 of working as drops in limited time, also can only rotate, after rotating to the angular orientation of structures shape of steel ball cover 23 and positioning ring 9 equally, can not move, at this moment, this laborsaving high sealing stopcock is in the closed position again.
The moving up and down and rotatablely moving of the structures shape valve rod 3 of steel ball cover 23, steel ball 10, positioning ring 9 and Stem Mut 7, thereby realize moving up and down and rotatablely moving of taper valve core 16, pay with the seal ring 13 formation sealings that valve body 12 inner chambers embed, finish the work that opens and closes of this valve.The spool 16 of the conical cavity that is provided with on the valve body 12 and the seal ring 13 of embedding and taper has bigger auto-compensation when forming sealing, when wearing and tearing, also can well seal.Spool 16 can form sealing with the awl chamber of seal ring 13 and valve body 12, leaks phenomenon in can not taking place.When valve opened and closed, because motor performance partly adopts thrust ball bearing 5 and steel ball 10, structures such as steel ball cover 23 were done the rolling friction campaign and have well been reduced steering force, make the keying of this valve very laborsaving, flexible.
During the work of this valve,, the face friction has been changed into rolling friction, reduced a lot of surface friction drag, so open and close all laborsaving because design has two dish thrust ball bearing 5 and steel ball 10 structures.Simultaneously structures such as the steel balls cover 23 of design, steel ball 10, Stem Mut 7, positioning screwn 8, positioning ring 9 in the support 24 of this valve make operation handwheel 2 drive Stem Muts 7 rotations, and valve rod 3 drives taper valve cores 16 and makes the rising straight line motion.At this moment, the conical internal cavity of spool 16 outer surfaces and seal ring 13 and valve body 12 all disengages, and also just can not produce resistance naturally, so has operated very much the labour-saving.When valve rod 3 moved to the upper limit position of design, because the effect of positioning ring 9 and steel ball 10, Stem Mut 7, it can only rotate, and can only half-twist, was in full-gear this moment.When needs are closed, counterrotating handwheel 2, valve rod 3 also can only rotate also at upper limit position at this moment, equally also can only half-twist.After valve rod 3 is rotated in place, because the effect of positioning ring 9, steel ball 10, Stem Mut 7, handwheel 2 drives Stem Mut 7 rotations, and valve rod 3 drive taper valve cores 16 are made the decline straight line motion, when dropping to the lower position of design, its motion stops, and handwheel 2 can only dally, and valve is in closed condition.As seen, no matter stopcock is opened, when still closing, the seal ring 13 that embeds in the conical cavity of its spool 16 and valve body 12 and the conical cavity is all contactless when rotatablely moving, equal moving linearly during contact, so just farthest reduced the area of contact of friction, also just guaranteed surface friction drag for minimum, promptly operation is the most laborsaving.
Claims (9)
1, a kind of laborsaving high sealing stopcock, comprise valve body (12), it is characterized in that: described valve body (12) is provided with the passage of a perforation of crossing for MEDIA FLOW, the valve pocket of one taper of intersecting with described passage, one rotatably is located at the taper valve core (16) that is used for the band equalizing orifice of the described passage of blocking-up under the stopcock closed condition in the valve pocket, with a valve rod (3) that is used for rotational valve core (16), the upper end of valve body (12) is provided with valve gap (11); The floating taper cock valve core of described spool (16) for moving up and down at valve pocket, spool (16) upper end is connected with valve rod (3) by straight pin (17), the bottom is connected with valve body (12) bottom and plug screw (15), is embedded with seal ring (13) between spool (16) and the valve body (12); Described valve gap (11) is fixedlyed connected by support (24) with positioning ring (9) with loam cake (6), and the steel ball cover (23) of establishing steel ball (10) in described positioning ring (9) inwall is incited somebody to action is fixed in outside the valve rod (3), is provided with thrust ball bearing (5) in the loam cake (6); Described valve rod (3) top is provided with handwheel gland (1) and handwheel (2).
2, a kind of laborsaving high sealing stopcock according to claim 1, it is characterized in that: described handwheel (2), handwheel gland (1), loam cake (6), steel ball cover (23) are separately fixed on the Stem Mut (7) of valve rod (3) upper periphery.
3, a kind of laborsaving high sealing stopcock according to claim 1, it is characterized in that: described thrust ball bearing (5) is located between Stem Mut (7) and the loam cake (6).
4, a kind of laborsaving high sealing stopcock according to claim 1 is characterized in that: it is fixedly connected to mark closely screw (8) by interior hexagonal awl end between described loam cake (6) and the support (24).
5, a kind of laborsaving high sealing stopcock according to claim 1 is characterized in that: be provided with composite sealing ring (21) between described valve gap (11) and the valve rod (3).
6, a kind of laborsaving high sealing stopcock according to claim 1 is characterized in that: described composite sealing ring (21) upper end is provided with Gland (22).
7, a kind of laborsaving high sealing stopcock according to claim 1 is characterized in that: between described plug screw (15) and the valve body (12), between valve body (12) and the valve gap (11) and be respectively equipped with 0 type circle (14,18,4) between loam cake (6) and the Stem Mut (7).
8, a kind of laborsaving high sealing stopcock according to claim 1 is characterized in that: be fixed together by nut (19) and double-screw bolt (20) between described valve body (12) and the valve gap (11).
9, a kind of laborsaving high sealing stopcock according to claim 1, it is characterized in that: described handwheel (2) and handwheel gland (1) are provided with flat key (25) in the position that intersects at Stem Mut (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202233472U CN201322106Y (en) | 2008-12-12 | 2008-12-12 | Labor-saving high-sealing plug valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202233472U CN201322106Y (en) | 2008-12-12 | 2008-12-12 | Labor-saving high-sealing plug valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201322106Y true CN201322106Y (en) | 2009-10-07 |
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ID=41159489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202233472U Expired - Lifetime CN201322106Y (en) | 2008-12-12 | 2008-12-12 | Labor-saving high-sealing plug valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201322106Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252099A (en) * | 2011-06-30 | 2011-11-23 | 朱成伟 | Valve rod |
| CN102927306A (en) * | 2011-04-07 | 2013-02-13 | 丛爱国 | Pressure container valve capable of being automatically locked |
| CN104265943A (en) * | 2014-10-21 | 2015-01-07 | 成都市翻鑫家科技有限公司 | Drill rod plug valve |
| CN105065702A (en) * | 2015-07-16 | 2015-11-18 | 浙江福瑞科流控机械有限公司 | Lifting plug valve and control method thereof |
| CN105805325A (en) * | 2016-04-14 | 2016-07-27 | 珠海格力电器股份有限公司 | Stop valve |
| CN106439077A (en) * | 2016-10-31 | 2017-02-22 | 杭州安其拉科技有限公司 | Ball type ultralow-torque cock valve |
| CN107269874A (en) * | 2017-08-22 | 2017-10-20 | 贾培育 | A kind of screw drive tap web rotary valve |
| CN113217667A (en) * | 2021-05-07 | 2021-08-06 | 南京博堃自动化设备有限公司 | Three-way type non-resistance plug valve |
| CN113294583A (en) * | 2021-04-30 | 2021-08-24 | 西安航天远征流体控制股份有限公司 | Pressure balance type plug valve and driving device thereof |
| CN114198521A (en) * | 2021-12-06 | 2022-03-18 | 浙江福瑞科流控机械有限公司 | Pilot self-operated double-blocking-discharge normally-installed bushing plug valve and working method thereof |
| CN114427606A (en) * | 2022-03-04 | 2022-05-03 | 浙江东信阀门有限公司 | Plug valve |
-
2008
- 2008-12-12 CN CNU2008202233472U patent/CN201322106Y/en not_active Expired - Lifetime
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927306A (en) * | 2011-04-07 | 2013-02-13 | 丛爱国 | Pressure container valve capable of being automatically locked |
| CN102252099A (en) * | 2011-06-30 | 2011-11-23 | 朱成伟 | Valve rod |
| CN102252099B (en) * | 2011-06-30 | 2013-05-29 | 朱成伟 | Valve rod |
| CN104265943A (en) * | 2014-10-21 | 2015-01-07 | 成都市翻鑫家科技有限公司 | Drill rod plug valve |
| CN105065702A (en) * | 2015-07-16 | 2015-11-18 | 浙江福瑞科流控机械有限公司 | Lifting plug valve and control method thereof |
| CN105805325A (en) * | 2016-04-14 | 2016-07-27 | 珠海格力电器股份有限公司 | Stop valve |
| CN106439077B (en) * | 2016-10-31 | 2018-11-06 | 杭州安其拉科技有限公司 | A kind of ball-type ultra-low torque plug valve |
| CN106439077A (en) * | 2016-10-31 | 2017-02-22 | 杭州安其拉科技有限公司 | Ball type ultralow-torque cock valve |
| CN107269874A (en) * | 2017-08-22 | 2017-10-20 | 贾培育 | A kind of screw drive tap web rotary valve |
| CN107269874B (en) * | 2017-08-22 | 2023-12-01 | 贾培育 | Screw driving cone rotary valve |
| CN113294583A (en) * | 2021-04-30 | 2021-08-24 | 西安航天远征流体控制股份有限公司 | Pressure balance type plug valve and driving device thereof |
| CN113294583B (en) * | 2021-04-30 | 2024-03-08 | 西安航天远征流体控制股份有限公司 | Pressure balance type plug valve and driving device thereof |
| CN113217667A (en) * | 2021-05-07 | 2021-08-06 | 南京博堃自动化设备有限公司 | Three-way type non-resistance plug valve |
| CN113217667B (en) * | 2021-05-07 | 2022-03-11 | 南京博堃自动化设备有限公司 | Three-way type non-resistance plug valve |
| CN114198521A (en) * | 2021-12-06 | 2022-03-18 | 浙江福瑞科流控机械有限公司 | Pilot self-operated double-blocking-discharge normally-installed bushing plug valve and working method thereof |
| CN114198521B (en) * | 2021-12-06 | 2024-02-06 | 浙江福瑞科流控机械有限公司 | Pilot-operated self-operated double-blocking discharge plug valve with positively-installed bushing and working method thereof |
| CN114427606A (en) * | 2022-03-04 | 2022-05-03 | 浙江东信阀门有限公司 | Plug valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Leshan Thermo Technical Instruments Co., Ltd. Assignor: Peng Guojun Contract record no.: 2011510000208 Denomination of utility model: Labor-saving high-sealing plug valve Granted publication date: 20091007 License type: Exclusive License Record date: 20110825 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20091007 |
|
| CX01 | Expiry of patent term |