CN106439044A - Particular kind differential screw elevation type completely plastic valve - Google Patents
Particular kind differential screw elevation type completely plastic valve Download PDFInfo
- Publication number
- CN106439044A CN106439044A CN201611123635.6A CN201611123635A CN106439044A CN 106439044 A CN106439044 A CN 106439044A CN 201611123635 A CN201611123635 A CN 201611123635A CN 106439044 A CN106439044 A CN 106439044A
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- China
- Prior art keywords
- valve
- valve rod
- plastic
- special type
- rod
- 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.)
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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
- 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
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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
- F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
-
- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/12—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with wedge-shaped arrangements of sealing faces
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention relates to a particular kind differential screw elevation type completely plastic valve. The completely plastic valve comprises a valve body, a valve deck, a valve rod, an starting and stopping differential nut and a rotation stopping component, wherein the valve rod is inserted into the inner part of the valve body, the upper part of the valve rod is connected to the starting and stopping differential nut, the valve deck is arranged on the outer part of the valve rod and is connected to the starting and stopping differential nut; meanwhile, the valve deck is also connected to the valve body, the rotation stopping component is matched with the valve rod and is used for forcing the valve rod to maintain up and down movement but not to rotate in the starting and stopping processes of the valve. According to the particular kind differential screw elevation type completely plastic valve, the rotation stopping effect of the rotation stopping component on the valve rod is used to make the valve rod only maintain up and down movement but not rotate during the starting and stopping processes. In this way, the screw mechanism can be used to translate timely twisting force into axial force immediately, so that with a premise of reducing sharply the twisting force borne by the starting and stopping component, plasticization of the starting and stopping mechanism is achieved, and overall plasticization of the valve is further achieved. In addition, according to the particular kind differential screw elevation type completely plastic valve, the starting and stopping operations of the valve reaches an effect of being faster.
Description
Technical field
The invention belongs to pipe valve manufacturing technology field and in particular to a kind of special type differential spiral up-down all-plastic valve
Door.
Background technology
So-called Plastic valve in the market, simply valve body is plastic material, and its internal mechanism for opening/closing is still by metal
Material is made, and wherein, major part adopts ferrous material.It is known that ferrous material gets rusty easily, it is easily caused valve internal rust
Erosion, affects using effect.In order to solve the above problems, occur in that the mechanism for opening/closing made with copper alloy for material, but due to copper
The price of alloy is higher, is unfavorable for using on a large scale.In view of drawbacks described above, each manufacturing enterprise proposes valve internal and opens and closes
Mechanism also by the imagination of plastic manufacturing, but through groping for a long time, all unresolved can not bear because plastic strength is low larger
The defect that twisting resistance causes valve to come off and damages.
Content of the invention
It is an object of the invention to, for drawbacks described above, provide a kind of change valve opening and closing structure, by the torsion of mechanism for opening/closing
Turn power and be converted into axial force, and then ensure the extraordinary differential spiral up-down all-plastic valve of valve service life.
In order to achieve the above object, the technical solution used in the present invention is as follows：
A kind of special type differential spiral up-down all-plastic valve, including：Valve body, valve gap, valve rod, keying differential nut and rotation stop
Element, described valve rod is inserted into valve inner, and the top of described valve rod is connected with described keying differential nut, and described valve gap sets
Put in the outside of valve rod and be connected with described keying differential nut, meanwhile, described valve gap is also connected with described valve body
Connect, described anti-rotation elements are matched with described valve rod, for valve in opening-closing process, force described valve rod to keep moving up and down
And do not rotate.
It is preferred that described anti-rotation elements are a key pin, described key pin is mounted in described valve rod through valve gap.
It is preferred that described anti-rotation elements are a wedge shape flashboard, described wedge shape flashboard is arranged on the bottom of described valve rod and inserts
Enter to valve inner, wherein, the outer rim of described wedge shape flashboard upper end is shaped as square.
More preferably, described valve gap is the cylindrical element with a flange.
More preferably, described valve gap is connected with described valve body by fastening wire ring.
It is preferred that described keying differential nut is connected with described threaded stem by left hand thread.
It is preferred that described keying differential nut is threadeded with described valve gap by right-handed thread.
It is preferred that being provided with O-shaped sealing gasket between described valve rod and described valve gap.
It is preferred that described valve rod is provided with soft seal pad with the connecting portion of described valve body.
It is preferred that described groove brake sleeve-board, equipped with soft seal shell, is inserted in the square cavity of valve body.
Beneficial effects of the present invention：The present invention is mainly acted on so as to open and close to the rotation stop of valve rod using anti-rotation elements
Cheng Zhong, only keeps moving up and down without rotating.This makes it possible to immediately convert twisting resistance in time using screw mechanism
Become axial force, so that it may realize the plastic of mechanism for opening/closing on the premise of substantially reducing the born twisting resistance of opening and closing element, enter
And realize the integral plastics of valve.In addition the present invention also makes the keying operation of valve reach more efficiently effect.
Brief description
The accompanying drawing constituting the part of the application is used for providing a further understanding of the present invention, the schematic reality of the present invention
Apply example and its illustrate, for explaining the present invention, not constituting inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the structural representation of present invention special type differential spiral up-down all-plastic valve embodiments 1；
Fig. 2 is the structural representation of present invention special type differential spiral up-down all-plastic valve embodiments 2.
Specific embodiment
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can phases
Mutually combine.To describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
In order that those skilled in the art more fully understand application scheme, below in conjunction with the embodiment of the present application
Accompanying drawing, is clearly and completely described to the technical scheme in the embodiment of the present application it is clear that described embodiment is only
The embodiment of the application part, rather than whole embodiments.Based on the embodiment in the application, ordinary skill people
The every other embodiment that member is obtained under the premise of not making creative work, all should belong to the model of the application protection
Enclose.
The connection of the mechanism for opening/closing of conventional valves, handwheel and valve rod is to be fixedly connected, and this structure leads to handwheel and valve rod
Larger twisting resistance to be born in opening-closing process, making using metal material does not have any problem, but if not changing this
Structure and use merely plastic material instead to make, be certain to can't stand larger twisting resistance and be quickly damaged because holding.So will
Think that the mechanism for opening/closing of valve is realized plastic and is necessary for changing the configuration of mechanism for opening/closing in conventional valves.
It is known that part bear axial force ability to be much higher than the ability bearing twisting resistance that is to say, that single just
For the axial force of opening-closing process, working of plastics is fully able to be competent at.If significantly can be subtracted by changing the structure of mechanism for opening/closing
The twisting resistance that finding bears, then mechanism for opening/closing plastic achieves that.
The present invention is exactly to open and close, it is achieved that reducing, the torsion that part bears by changing the structure of conventional valves mechanism for opening/closing
Power, improves the force-bearing situation of opening and closing element, has adapted to working of plastics and can not bear the feature of larger twisting resistance it is achieved that mechanism for opening/closing
Plastic.
Embodiment 1
A kind of special type differential spiral up-down all-plastic valve, including：Valve body 1, soft seal pad 2, valve rod 3, anti-rotation elements, O-shaped
Sealing ring 5, valve gap 6, keying differential nut 7 and capping 8, valve rod 3 is inserted into inside valve body 1, and in its valve rod 3 and valve body 1
Connecting portion is provided with soft seal pad 2, and threadeded by left hand thread with opening and closing differential nut 7 in the top of valve rod 3, valve gap 6
It is arranged on the outside of valve rod 3 and is threadeded by right-handed thread with opening and closing differential nut 7, meanwhile, the middle part of valve gap 6 is also
It is threaded connection with valve body 1 and is fixed as one, anti-rotation elements are matched with valve rod 3, for valve in opening-closing process, force
Valve rod 3 keeps moving up and down and not rotating.In the present embodiment, anti-rotation elements are a key pin 4, and key pin 4 is mounted to valve through valve gap 6
In bar 3.Be additionally provided with O-shaped sealing gasket 5 between described valve rod 3 and described valve gap 6, valve gap 6 be shaped as cylindrical shape.
The installation process of embodiment 1 is：
A. first soft seal pad 2 and O-ring seal 5 are sleeved on valve rod 3.
B. the dextrorotation external thread rotary of the dextrorotation female thread and valve gap 6 top that open and close differential nut 7 bottom is picked up.
C. the valve rod 3 installing set passes through from the endoporus of valve gap 6 from bottom to top, then by the sinistral external thread on its top
Spin with the levogyrate inner thread opening and closing differential nut 7 top, then adjust the mutual alignment of above-mentioned three, then make valve
Keyway on bar 3 is directed at the key pin hole of valve gap 6.
D. key pin 4 is inserted the key pin in the hole of valve gap 6.
E. the valve gap 6 having been carried numerous parts is threadeded with valve body 1.
F. finally capping 8 is arranged on keying differential nut 7, to play proofing dust and protecting and beauty function.
The opening/shutting mode of the present invention as conventional valves, clockwise direction rotary opening and closing differential nut 7, realize close,
Counterclockwise rotates open and close differential nut 7 and realize opening.This mechanism for opening/closing is called extraordinary differential screw mechanism.
In opening-closing process, because key pin 4 acts on to the rotation stop of valve rod 3, valve rod does not rotate, and be simply open and close differential nut
7 drive and move up and down, and to realize opening and closing.This makes it possible to, using screw mechanism, immediately twisting resistance is changed into axial force,
Substantially reduce the twisting resistance that opening and closing element born so that it may realize the plastic of mechanism for opening/closing.Simultaneously in opening-closing process, open and close
Differential nut 7 per revolution, the distance of valve rod 3 movement is equal to and opens and closes two female thread pitch that differential nut 7 has
Additive value, thus the valve mechanism of the present embodiment the keying of valve can be made to operate reached and more efficiently imitate than conventional valves
Really.The upper sealing of valve, is to coordinate to realize by the clear opening of the O-ring seals 5 on valve rod 3 and valve gap 6.
Embodiment 2
A kind of special type differential spiral up-down all-plastic valve, including：Valve body 1, valve rod 3, O-ring seal 5, valve gap 6, keying are poor
Dynamic nut 7, anti-rotation elements, capping 8, soft seal shell 9 and fastening wire ring 10.Anti-rotation elements in this example are a wedge shape flashboard 11.
The bottom of valve rod 3 is provided with wedge shape flashboard 11, this wedge shape flashboard 11 is set with soft seal shell 9 and is inserted into valve body
In 1 square cavity, this square cavity is just matched with the squared exterior edges of wedge shape flashboard 11 upper end.The top of valve rod 3 with open
Close differential nut 7 pass through left hand thread threaded, valve gap 6 be arranged on valve rod 3 outside and with open and close differential nut 7 pass through the right side
Rotation screw thread connects, and meanwhile, the valve gap 6 with the cylindrical element shape of an outward flange passes through to fasten wire ring 10 and valve body 1
Threaded, anti-rotation elements are matched with valve rod 3, for valve in opening-closing process, force described valve rod 3 to keep moving up and down
And do not rotate.It is provided with O-shaped sealing gasket 5 between valve rod 3 and valve gap 6.
The installation process of embodiment 2 is：
A. on valve rod 3, set loads onto soft seal shell 9 and O-ring seal 5.
B. fastening wire ring 10 kink on valve gap 6.
C. the dextrorotation female thread opening and closing differential nut 7 is got up with the dextrorotation external thread bolt connection of valve gap 6.
D. valve rod 3 is passed through from the endoporus of valve gap 6 from bottom to top, by the sinistral external thread on its top and the differential spiral shell of keying
The levogyrate inner thread on female 7 tops spins, and then adjusts the mutual position of valve gap 6 manual opening-closing differential nut, 7 valve rod 3 three
Put.
E. wedge shape flashboard valve rod 3 bottom being carried soft seal shell 9 inserts in the square cavity of valve body 1, then will be alive
The fastening wire ring 4 being enclosed within valve gap 6 and valve body 1 spin.
F. finally capping 8 is covered on manual opening-closing differential nut 7, to play proofing dust and protecting and beauty function.
The opening/shutting mode of the present invention is as conventional valves.In opening-closing process, valve rod 3 does not rotate, and its anti-rotating function is
Because wedge shape flashboard 11 top outer rim is square, valve body 1 top is the square cavities being adapted with flashboard squared exterior edges,
So valve rod 3 can only move up and down along the wall of valve body 1 square cavities and can not rotate in opening-closing process；When manual opening-closing is poor
To during right rotation, keying differential nut 7 moves down dynamic nut 7 along valve gap 6, and band ovable valve stem 3 also moves down, just simultaneously
Achievable valve closing；If opening and closing differential nut 7 counterclockwise rotates, valve just can be realized opening；In opening-closing process
In, manual opening-closing differential nut 7 per revolution, have equal to manual opening-closing differential nut 7 two of valve rod 3 displacement
The additive value of female thread pitch；So using screw mechanism, the twisting resistance suffered by opening and closing element is converted into axial force immediately so that it may
Significantly reducing the twisting resistance of mechanism for opening/closing, thus realizing the plastic of mechanism for opening/closing, and then realizing whole valve plastic, and
And the present invention also makes the keying operation of valve reach more efficiently effect.The upper sealing of valve, is by O-shaped on valve rod 3
The clear opening of sealing ring 5 and valve gap 6 coordinates to be realized.
Embodiments of the invention 1,2 are all to adopt anti-rotation elements, force valve rod 3 not rotate in opening-closing process, only make axle
Moving up and down to direction.Thus can be utilized screw mechanism immediately twisting resistance can be converted into axial force, greatly reduce keying
Twisting resistance suffered by part, the drawbacks of overcome conventional valves, creates a kind of new all-plastic valve.This valve is applied to hot and cold water
Pipeline uses.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of special type differential spiral up-down all-plastic valve, including：Valve body, valve gap, valve rod, open and close differential nut and only
Turn element it is characterised in that：
Described valve rod is inserted into valve inner, and the top of described valve rod is connected with described keying differential nut, and described valve gap sets
Put in the outside of valve rod and be connected with described keying differential nut, meanwhile, described valve gap is also connected with described valve body
Connect, described anti-rotation elements are matched with described valve rod, for valve in opening-closing process, force described valve rod to keep moving up and down
And do not rotate.
2. a kind of special type differential spiral up-down all-plastic valve according to claim 1 is it is characterised in that described rotation stop
Element is a key pin, and described key pin is mounted in described valve rod through valve gap.
3. a kind of special type differential spiral up-down all-plastic valve according to claim 1 is it is characterised in that described rotation stop
Element is a wedge shape flashboard, and described wedge shape flashboard is arranged on the bottom of described valve rod and is inserted into valve inner, wherein, described wedge
The outer rim of shape flashboard upper end is shaped as square.
4. a kind of special type differential spiral up-down all-plastic valve according to claim 3 is it is characterised in that described valve gap
For having the cylindrical element of a flange.
5. a kind of special type differential spiral up-down all-plastic valve according to claim 4 is it is characterised in that described valve gap
It is connected with described valve body by fastening wire ring.
6. a kind of special type differential spiral up-down all-plastic valve according to Claims 2 or 3 is it is characterised in that described
Open and close differential nut to be connected with described threaded stem by left hand thread.
7. a kind of special type differential spiral up-down all-plastic valve according to Claims 2 or 3 is it is characterised in that described
Open and close differential nut to threaded with described valve gap by right-handed thread.
8. a kind of special type differential spiral up-down all-plastic valve according to Claims 2 or 3 is it is characterised in that described
It is provided with O-shaped sealing gasket between valve rod and described valve gap.
9. a kind of special type differential spiral up-down all-plastic valve according to claim 2 is it is characterised in that described valve rod
The connecting portion of described valve body is provided with soft seal pad.
10. a kind of special type differential spiral up-down all-plastic valve according to claim 3 is it is characterised in that described wedge
Shape flashboard is set with soft seal shell, is inserted in the square cavity of valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611123635.6A CN106439044A (en) | 2016-12-08 | 2016-12-08 | Particular kind differential screw elevation type completely plastic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611123635.6A CN106439044A (en) | 2016-12-08 | 2016-12-08 | Particular kind differential screw elevation type completely plastic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106439044A true CN106439044A (en) | 2017-02-22 |
Family
ID=58216905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611123635.6A Pending CN106439044A (en) | 2016-12-08 | 2016-12-08 | Particular kind differential screw elevation type completely plastic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106439044A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108544024A (en) * | 2018-05-18 | 2018-09-18 | 丹阳市宝利锯业机械有限公司 | A kind of longitudinal fine tuning differential attachment of gear grinding machines feed mechanism |
| CN113324046A (en) * | 2021-05-28 | 2021-08-31 | 中国工程物理研究院总体工程研究所 | Axial driving type all-metal diaphragm valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200943714Y (en) * | 2006-09-01 | 2007-09-05 | 金为民 | Differential regulation type high temperature and high pressure stop valve |
| CN201013904Y (en) * | 2006-11-29 | 2008-01-30 | 杜汝益 | Differential spiral up-down plastic stop valve |
| CN102537388A (en) * | 2010-12-02 | 2012-07-04 | 梁敬喜 | Pulling-down sluice valve |
| US20120248360A1 (en) * | 2011-03-30 | 2012-10-04 | Vetco Gray Inc. | Differential screw assembly for varying torque for valve |
| CN102777683A (en) * | 2012-07-16 | 2012-11-14 | 葛明 | Novel ultrahigh vacuum fine adjustment valve |
| CN204961878U (en) * | 2015-08-18 | 2016-01-13 | 上海艾维科阀门有限公司 | Manual planet roller screw transmission gate valve |
| CN206513837U (en) * | 2016-12-08 | 2017-09-22 | 杜汝镒 | Extraordinary differential spiral up-down all-plastic valve |
-
2016
- 2016-12-08 CN CN201611123635.6A patent/CN106439044A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200943714Y (en) * | 2006-09-01 | 2007-09-05 | 金为民 | Differential regulation type high temperature and high pressure stop valve |
| CN201013904Y (en) * | 2006-11-29 | 2008-01-30 | 杜汝益 | Differential spiral up-down plastic stop valve |
| CN102537388A (en) * | 2010-12-02 | 2012-07-04 | 梁敬喜 | Pulling-down sluice valve |
| US20120248360A1 (en) * | 2011-03-30 | 2012-10-04 | Vetco Gray Inc. | Differential screw assembly for varying torque for valve |
| CN102777683A (en) * | 2012-07-16 | 2012-11-14 | 葛明 | Novel ultrahigh vacuum fine adjustment valve |
| CN204961878U (en) * | 2015-08-18 | 2016-01-13 | 上海艾维科阀门有限公司 | Manual planet roller screw transmission gate valve |
| CN206513837U (en) * | 2016-12-08 | 2017-09-22 | 杜汝镒 | Extraordinary differential spiral up-down all-plastic valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108544024A (en) * | 2018-05-18 | 2018-09-18 | 丹阳市宝利锯业机械有限公司 | A kind of longitudinal fine tuning differential attachment of gear grinding machines feed mechanism |
| CN113324046A (en) * | 2021-05-28 | 2021-08-31 | 中国工程物理研究院总体工程研究所 | Axial driving type all-metal diaphragm valve |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20170222 |