CN104482235B - A kind of knife gate valve - Google Patents
A kind of knife gate valve Download PDFInfo
- Publication number
- CN104482235B CN104482235B CN201410787031.6A CN201410787031A CN104482235B CN 104482235 B CN104482235 B CN 104482235B CN 201410787031 A CN201410787031 A CN 201410787031A CN 104482235 B CN104482235 B CN 104482235B
- Authority
- CN
- China
- Prior art keywords
- valve
- flashboard
- knife gate
- rod
- valve 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.)
- Expired - Fee Related
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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
- 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
- F16K3/0281—Guillotine or blade-type valves, e.g. no passage through the valve member
-
- 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
- F16K3/30—Details
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
- Details Of Valves (AREA)
Abstract
The present invention relates to a kind of knife gate valve, including valve body, flashboard is installed in valve body, flashboard is fixedly arranged above valve rod, the valve seat coordinated with flashboard it is provided with on the inwall of valve body inlet and outlet, valve body is provided above with valve gap, valve gap is fixedly arranged above support, support is arranged above controlling the handwheel drive mechanism that valve rod moves up and down, valve rod upper end is connected with handwheel drive mechanism, being provided with between described flashboard and valve rod and be connected fork, said two valve seat is eccentric structure, and the bias of two valve seats is not the most in same level.The present invention is provided with between flashboard with valve rod and is connected fork, and by being connected, fork is fixing to be connected flashboard with valve rod, which saves stem material, reduces the cost, easy accessibility；Two valve seats are eccentric structure, and the bias of two valve seats is not the most in same level so that two valve seat endoporus height are different, even if being filled with impurity in seal groove, the most slightly higher eccentric valve seat can seal with flashboard clamping, good sealing effect.
Description
Technical field
The present invention relates to a kind of valve, be specifically related to a kind of knife gate valve.
Background technology
Knife gate valve is mainly as regulation and cut-off equipment, and its opening and closing element is flashboard, the direction of motion of flashboard
It is perpendicular with flow direction, by medium can be cut off with the knife-edge flashboard of cutting fiber material.Valve at present
Bar is all directly connected to the connection of flashboard, and the disadvantage of do so is that stem material is wasted very much, and keeps in repair
Dismounting inconvenience.And blade gate valve is typically all and becomes inner circle and cylindrical concentric seat design, does so
Disadvantage be that after the following groove of flashboard is filled up by impurity, valve would not seal, and needs often to dismount dimension
Repair, bother very much.
Summary of the invention
The technical problem to be solved is to provide a kind of knife gate valve, and valve rod is pitched by being connected with flashboard
Connecting, it saves material, easy accessibility, and valve seat is eccentric sealed effective.
For achieving the above object, the technical scheme that the present invention takes is:
A kind of knife gate valve, including valve body, is provided with flashboard in valve body, flashboard is fixedly arranged above valve rod, valve
Being provided with the valve seat coordinated with flashboard on the inwall of body inlet and outlet, valve body is provided above with valve gap,
Valve gap is fixedly arranged above support, and support is arranged above controlling the handwheel drive mechanism that valve rod moves up and down,
Valve rod upper end is connected with handwheel drive mechanism, is provided with and is connected fork between described flashboard and valve rod, and described two
Individual valve seat is eccentric structure, and the bias of two valve seats is not the most in same level.
Described connection fork includes that a cylinder, cylinder one end are provided with the draw-in groove for clamping flashboard, this end of cylinder
Being provided with first pin-and-hole perpendicular with draw-in groove, be provided with the first bearing pin in the first pin-and-hole, flashboard upper end sets
Being equipped with the fixing hole corresponding with the first bearing pin, the cylinder other end is provided with the fixing groove for clamping valve rod,
Cylinder is provided with the second pin-and-hole in fixing groove diametric(al), is provided with the second bearing pin, valve in the second pin-and-hole
Bar lower end is provided with the perforation corresponding with the second bearing pin.
Described handwheel drive mechanism includes that the valve stem nut being enclosed within valve rod, valve stem nut periphery are provided with bearing
Box cover, is provided with the bearing housing lower cover being fixed on support below bearing housing upper cover, bearing housing upper cover and
Being provided with two pressure bearings between valve stem nut, valve stem nut upper end passes bearing housing upper cover, valve rod spiral shell
Female upper end is fixed with handwheel.
Described support is made up of the pillar being fixed on above valve gap, and lower rod end is fixed on valve gap, on pillar
End is fixed with handwheel drive mechanism.
Described support is made up of four pillars.
Described valve gap is arranged with valve body split, is filled with filler between valve gap and valve rod, and filler is arranged above
The gland being connected is fixed with valve gap.
Described valve gap is bolted on valve body.
The eccentric direction of said two valve seat is contrary.
The present invention is provided with between flashboard with valve rod and is connected fork, and by being connected, fork is fixing to be connected flashboard with valve rod,
Which save stem material, reduce the cost, easy accessibility；Two valve seats are eccentric structure, two valves
The bias of seat is not the most in same level, i.e. bias is the most different so that two valve seat endoporus height
Difference, even if being filled with impurity in seal groove, the most slightly higher eccentric valve seat can seal with flashboard clamping, from
And make valve seal unaffected, good sealing effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is that the present invention connects fork structural representation.
Fig. 3 is Fig. 2 rearview.
Fig. 4 is A-A sectional view in Fig. 2.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings.
As Figure 1-Figure 4, a kind of knife gate valve, including valve body 1, flashboard 2 is installed in valve body 1,
Flashboard 2 is fixedly arranged above valve rod 3, the inwall of valve body 1 inlet and outlet is provided with and coordinates with flashboard
Valve seat, two valve seat sizes are identical, are designated as import valve seat 4 and outlet valve seat 5 respectively, and valve body 1 is arranged above with
Having valve gap 6, valve gap 6 to be fixedly arranged above support 7, support 7 is arranged above controlling valve rod 3 and moves up and down
Handwheel drive mechanism, valve rod 3 upper end is connected with handwheel drive mechanism, described flashboard 2 and valve rod 3 it
Between connection fork 8 is installed, flashboard 2 and valve rod 3 by being connected the fixing connection of fork 8, import valve seat 4 with go out
Mouth valve seat 5 is eccentric structure, and so-called eccentric structure refers to that the cylindrical center of circle of valve seat and the inner circle center of circle do not weigh
Close；The bias of import valve seat 4 and outlet valve seat 5, the most not in same level, refers to two valve seats
The inner circle center of circle not on a horizontal plane；The eccentric direction of two valve seats is contrary, refers to the interior of two valve seats
The round heart is symmetrical about the center of circle of cylindrical.
The connection fork 8 of the present invention includes that a cylinder 9, cylinder 9 one end are provided with the card for clamping flashboard 2
Groove 10, this end of cylinder is provided with first pin-and-hole 11 perpendicular with draw-in groove 10, installs in the first pin-and-hole 11
Having the first bearing pin, flashboard upper end to be provided with the fixing hole corresponding with the first bearing pin, flashboard 2 is by first
Bearing pin, the first pin-and-hole 11 and fixing hole are fixed in draw-in groove 10；The cylinder other end is provided with for clamping
The fixing groove 12 of valve rod 3, cylinder is provided with the second pin-and-hole 13, the second pin-and-hole in fixing groove diametric(al)
Being provided with the second bearing pin in 13, valve rod lower end is provided with the perforation corresponding with the second bearing pin, and valve rod 3 leads to
Cross the second bearing pin and the second pin-and-hole 13 is fixed in fixing groove 12.
Handwheel drive mechanism includes the valve stem nut 14 being enclosed within valve rod 3, and valve stem nut 14 periphery is provided with
Bearing housing upper cover 15, is provided with the bearing housing lower cover 16 being fixed on support 7 below bearing housing upper cover 15,
Two pressure bearings 17, valve stem nut 14 upper end it is provided with between bearing housing upper cover 15 and valve stem nut 14
Being provided with handwheel 18 after passing bearing housing upper cover 15, two pressure bearings 17 reduce the switch of valve rod 3
Moment of torsion, easy to operate, time saving and energy saving.
Support 7 is made up of the pillar 19 being fixed on above valve gap 6, and lower rod end is fixed on valve gap,
Post upper end is fixed with handwheel drive mechanism, and support is made up of four pillars, and pillar processing technique is simple, joint
Material saving, improves production efficiency.
Valve gap 6 is arranged with valve body 1 split, and valve gap 6 is bolted on valve body, valve gap 6 and valve rod
Being filled with filler 20 between 1, filler 20 is arranged above fixing the gland 21 being connected, valve with valve gap
Lid 6 is arranged with valve body split, and processing technique is simple, easy accessibility, it is simple to maintenance.
When the present invention uses, rotatable handwheel 18, handwheel 18 drives valve stem nut 14 to rotate, valve stem nut
14 band ovable valve stems 3 do upper and lower motion, thus realize the keying of flashboard 2.
Claims (8)
1. a knife gate valve, including valve body, flashboard is installed in valve body, flashboard is fixedly arranged above valve rod, the valve seat coordinated with flashboard it is provided with on the inwall of valve body inlet and outlet, valve body is provided above with valve gap, valve gap is fixedly arranged above support, support is arranged above controlling the handwheel drive mechanism that valve rod moves up and down, valve rod upper end is connected with handwheel drive mechanism, it is characterized in that: be provided with between described flashboard and valve rod and be connected fork, described valve seat is eccentric structure, and the bias of valve seat is not the most in same level.
Knife gate valve the most according to claim 1, it is characterized in that: described connection fork includes a cylinder, cylinder one end is provided with the draw-in groove for clamping flashboard, this end of cylinder is provided with first pin-and-hole perpendicular with draw-in groove, first bearing pin is installed in the first pin-and-hole, flashboard upper end is provided with the fixing hole corresponding with the first bearing pin, the cylinder other end is provided with the fixing groove for clamping valve rod, cylinder is provided with the second pin-and-hole in fixing groove diametric(al), being provided with the second bearing pin in second pin-and-hole, valve rod lower end is provided with the perforation corresponding with the second bearing pin.
Knife gate valve the most according to claim 1, it is characterized in that: described handwheel drive mechanism includes the valve stem nut being enclosed within valve rod, valve stem nut periphery is provided with bearing housing upper cover, the bearing housing lower cover being fixed on support it is provided with below bearing housing upper cover, being provided with two pressure bearings between bearing housing upper cover and valve stem nut, valve stem nut upper end is provided with handwheel after passing bearing housing upper cover.
Knife gate valve the most according to claim 1, it is characterised in that: described support is made up of the pillar being fixed on above valve gap, and lower rod end is fixed on valve gap, and pillar upper end is fixed with handwheel drive mechanism.
Knife gate valve the most according to claim 4, it is characterised in that: described support is made up of four pillars.
Knife gate valve the most according to claim 1, it is characterised in that: described valve gap is arranged with valve body split, is filled with filler between valve gap and valve rod, and filler is arranged above fixing the gland being connected with valve gap.
Knife gate valve the most according to claim 6, it is characterised in that: described valve gap is bolted on valve body.
Knife gate valve the most according to claim 1, it is characterised in that: the eccentric direction of described valve seat is contrary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410787031.6A CN104482235B (en) | 2014-12-17 | 2014-12-17 | A kind of knife gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410787031.6A CN104482235B (en) | 2014-12-17 | 2014-12-17 | A kind of knife gate valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104482235A CN104482235A (en) | 2015-04-01 |
| CN104482235B true CN104482235B (en) | 2017-01-04 |
Family
ID=52756811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410787031.6A Expired - Fee Related CN104482235B (en) | 2014-12-17 | 2014-12-17 | A kind of knife gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104482235B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11499644B2 (en) | 2020-08-25 | 2022-11-15 | Emerson Automation Solutions Final Control US LP | Sealing assembly for a knife gate valve |
| CN112324926A (en) * | 2020-11-13 | 2021-02-05 | 合肥旭龙机械有限公司 | Pneumatic and manual dual-purpose knife gate valve for pneumatic conveying system |
| US11300213B1 (en) | 2021-02-19 | 2022-04-12 | Emerson Automation Solutions Final Control US LP | Floating yoke connection |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57149675A (en) * | 1981-03-11 | 1982-09-16 | Kurimoto Iron Works Ltd | Slide valve for high-temperature gas piping |
| US4492362A (en) * | 1982-11-26 | 1985-01-08 | Vetco Offshore, Inc. | Valve seat with trapped O-ring |
| CN2048146U (en) * | 1989-03-17 | 1989-11-22 | 开封市轻工设备维修配件厂 | Gate valve of pulp |
| CN2138222Y (en) * | 1992-07-29 | 1993-07-14 | 开封市低温阀门厂 | Special Sluice valve for mineral slurry |
| CN201487268U (en) * | 2009-08-03 | 2010-05-26 | 立信阀门集团有限公司 | Wear-resistant ceramic knife gate valve |
| CN203532809U (en) * | 2013-09-13 | 2014-04-09 | 浙江四通阀门制造有限公司 | Knife-shaped gate valve |
| CN203614780U (en) * | 2013-12-18 | 2014-05-28 | 永嘉县大唐阀门有限公司 | Double sealed ceramic brake valve |
| CN203656234U (en) * | 2013-12-24 | 2014-06-18 | 浙江中诚阀门有限公司 | Movable rigid-sealing zero-leakage knife-shaped gate valve |
-
2014
- 2014-12-17 CN CN201410787031.6A patent/CN104482235B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57149675A (en) * | 1981-03-11 | 1982-09-16 | Kurimoto Iron Works Ltd | Slide valve for high-temperature gas piping |
| US4492362A (en) * | 1982-11-26 | 1985-01-08 | Vetco Offshore, Inc. | Valve seat with trapped O-ring |
| CN2048146U (en) * | 1989-03-17 | 1989-11-22 | 开封市轻工设备维修配件厂 | Gate valve of pulp |
| CN2138222Y (en) * | 1992-07-29 | 1993-07-14 | 开封市低温阀门厂 | Special Sluice valve for mineral slurry |
| CN201487268U (en) * | 2009-08-03 | 2010-05-26 | 立信阀门集团有限公司 | Wear-resistant ceramic knife gate valve |
| CN203532809U (en) * | 2013-09-13 | 2014-04-09 | 浙江四通阀门制造有限公司 | Knife-shaped gate valve |
| CN203614780U (en) * | 2013-12-18 | 2014-05-28 | 永嘉县大唐阀门有限公司 | Double sealed ceramic brake valve |
| CN203656234U (en) * | 2013-12-24 | 2014-06-18 | 浙江中诚阀门有限公司 | Movable rigid-sealing zero-leakage knife-shaped gate valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104482235A (en) | 2015-04-01 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20170104 Termination date: 20201217 |