CN203477382U - Penetrating type knife gate valve - Google Patents
Penetrating type knife gate valve Download PDFInfo
- Publication number
- CN203477382U CN203477382U CN201320608534.3U CN201320608534U CN203477382U CN 203477382 U CN203477382 U CN 203477382U CN 201320608534 U CN201320608534 U CN 201320608534U CN 203477382 U CN203477382 U CN 203477382U
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- China
- Prior art keywords
- valve
- valve body
- spoiler
- flashboard
- gate valve
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- Expired - Fee Related
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Abstract
The utility model discloses a penetrating type knife gate valve, and aims at providing the penetrating knife gate valve which can prevent thick media from entering a valve body through a through hole of a flashboard. According to the technical scheme, the penetrating type knife gate valve comprises a valve assembly and a driving device; the valve assembly comprises the valve body, a valve cover, a valve rod, the flashboard and a pressing plate; the valve cover is fixedly arranged on the valve body, the valve body is provided with a medium channel and a penetrating port through which the flashboard penetrates, one end of the valve rod penetrates through the valve cover and is connected with the flashboard arranged inside the valve body, the flashboard comprises the through hole through which the media can flow, the valve body comprises an upper valve body and a lower valve body, the upper valve body is provided with a flow stopping sheet used for preventing the media from entering the upper valve body and a positioning groove into which the flow stopping sheet is embedded, and the flow stopping sheet is hinged to the positioning groove. The penetrating type knife gate valve is suitable for being used in the field of penetrating type knife valves.
Description
Technical field
The utility model relates to a kind of technical field of valve manufacturing, and more particularly, it relates to a kind of penetrating knife type gate valve.
Background technique
Penetrating knife type gate valve claims again hand operated gate valve, it is the valve of a kind of flashboard and valve seat close contact sealing all the time, its principle is the round mouth that has a latus rectum size on flashboard, by flashboard, is opened and closed and is made the action that on flashboard, round mouth is finished total detachment and matched with latus rectum.The advantage of this valve is that valve body latus rectum is without groove, and medium can not stop up by jam, and has full-bore flow characteristics, in the pipeline of applicable powder granule medium, uses.Its sealing configuration can divide soft seal, hard sealing structure.Penetrating knife type gate valve is to have the features such as precise construction, good manufacturability, compact structure, and seal valve seat, for bascule designs, has anti-wear and automatic compensation function, thereby the life-span is longer.Close with opening process in valve seat be close to motion with flashboard always, make valve opening and closing power stable, and there is the features such as the medium of cut-out.In the industry fields such as metallurgy, mine, coal washing, defeated coal, chemical industry, papermaking, building materials, coal-burning power plant, be generally used for wet type or the dry media such as transfer ore pulp, coal slurry, breeze, dry ash, coal dust, paper pulp, mud, material aqueous mixtures, material gas mixture.
At present, application number is that 201220393332.7 Chinese patent discloses a kind of wear-resisting penetrating knife type gate valve, it comprises by valve assembly and drive unit and forming, wherein, valve assembly comprises valve gap, valve seat and the valve body connecting successively from top to bottom, and valve rod and flashboard, described valve body is provided with the mouth that penetrates running through for flashboard, described valve body lower end is connected with the Gland with stuffing box packing, the lower end of described Gland is connected with hold-down grid, the described mouthful bottom that penetrates is provided with extension mouth, and the opening of described extension mouth is greater than the opening that penetrates mouthful top.
Although this wear-resisting penetrating knife type gate valve is difficult for accumulated slag, open and close required driving force little, when described knife gate valve is opened, allow and fall into the thick liquid that penetrates mouth, the media such as mud or slag slurry, with flashboard, move down, finally from extension mouth, fall, but, when described knife gate valve is closed, between left valve barrel and the seal ring of right valve barrel, there is gap, along with flashboard moves up, when the through hole of gate valve slowly enters valve body, the medium of some thickness can be attached on the through hole of flashboard, and along with flashboard enters valve body, even taken out of, in valve body, can there is the situations such as rotten for a long time in medium, taken out of the medium of valve body, even if some gate valves are provided with flashboard protective housing, medium also can be piled up in protective housing, befouling environment not only, and, if poisonous, with volatile medium, also can cause security incident.
Model utility content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of can prevent that the medium of thickness from entering the penetrating knife type gate valve of valve body with the through hole of flashboard.
For achieving the above object, the utility model provides following technological scheme: a kind of penetrating knife type gate valve, comprise valve assembly and drive unit, described valve assembly comprises valve body, valve gap, valve rod, flashboard and pressing plate, valve gap is installed on valve body, valve body be provided with medium channel and for flashboard, run through penetrate mouth, valve rod one end is passed valve gap and is connected with the flashboard in being located at valve body, described flashboard comprises can be for the through hole of medium circulation, described valve body comprises upper valve body and lower valve body, described upper valve body is provided with for preventing that medium from entering the spoiler of upper valve body and the locating slot that supplies the embedding of spoiler phase, described spoiler and described locating slot are hinged.
By adopting technique scheme, at described upper valve body, spoiler is set, at knife gate valve, close, the through hole of flashboard is while entering upper valve body, utilize spoiler to continue to move up with flap by block media, and by the gap between flashboard and upper valve body, medium is pushed back in the medium channel of valve body, thereby the media attachment that prevents some thickness is on the through hole at flashboard, and along with flashboard enters valve body, even taken out of; In addition, locating slot is set for the embedding of spoiler phase, makes described knife gate valve when opening, when the upper end of flashboard through hole arrives the position of spoiler, spoiler is advanced to locating slot, prevent that spoiler from stopping that through hole enters medium channel.
The utility model is further set to: described upper valve body comprises and penetrate a mouthful inwall, and described locating slot is located at a side that penetrates mouthful inwall, and the opposite side that penetrates mouthful inwall is also provided with for preventing the excessively restraining groove of upset of spoiler.
By adopting technique scheme; at the described opposite side that penetrates mouth, restraining groove being set can be when pressure medium be larger; effectively protect described spoiler; prevent that spoiler is because pressure medium is when excessive; make spoiler generation reverse flip, thereby spoiler loses the joint of effect and spoiler and upper valve body, be damaged.
The utility model is further set to: described flashboard comprises passage upper wall, passage lower wall and channel side wall, described passage lower wall and the channel side wall connection spoiler of can conflicting.
By adopting technique scheme, when described knife gate valve, to close while putting in place, described spoiler conflict passage lower wall and channel side wall, make the medium on flashboard be blocked and push back valve channel completely by spoiler.
The utility model is further set to: described spoiler is connected in described locating slot by torsion spring.
By adopting technique scheme, described spoiler is connected on described locating slot by torsion spring, when flashboard cuts out, when passage upper wall arrives the position of spoiler, spoiler can eject voluntarily, and the restraining groove of conflicting, thereby stops medium to be taken out of upper valve body.
The utility model is further set to: described through hole is rectangular through-hole.
By adopting technique scheme, through hole is set to rectangle, utilizes rectangle four limits to be the feature of straight line, facilitates processing and the installation of described spoiler, meanwhile, the plane contact between spoiler and passage lower wall, resistance flowing effect is better.
The utility model is further set to: the surface of described spoiler is coated with rubber layer.
By adopting technique scheme, rubber has the characteristics such as elasticity, insulating properties, waterproof and air, is coated with rubber layer on described spoiler, can not only strengthen spoiler and upper valve body between sealing, can also reduce the mutual wearing and tearing with the channel wall of flashboard, improve working life.
The utility model is further set to: described spoiler upper end is provided with the filler for preventing that medium from overflowing.
By adopting technique scheme, in described spoiler upper end, filler is set, can further increase the sealing of described knife gate valve, prevent when valve opening, medium is by penetrating a mouthful outflow valve body.
Accompanying drawing explanation
Embodiment's structural representation when Fig. 1 is the unlatching of the utility model penetrating knife type gate valve;
Fig. 2 is the A place enlarged view in Fig. 1;
Fig. 3 is the utility model penetrating knife type gate valve embodiment's while closing structural representation;
Fig. 4 is the B place enlarged view in Fig. 3.
Reference character: 1, valve assembly; 11, valve body; 111, medium channel; 112, penetrate mouth; 113, upper valve body; 1131, spoiler; 11311, torsion spring; 11312, rubber layer; 1132, locating slot; 1133, restraining groove; 1134, penetrate a mouthful inwall; 114, lower valve body; 12, valve gap; 13, valve rod; 14, flashboard; 141, through hole; 1411, passage upper wall; 1412, passage lower wall; 1413, channel side wall; 15, pressing plate; 16, filler; 2, drive unit.
Embodiment
Referring to figs. 1 through Fig. 4, the utility model penetrating knife type gate valve embodiment is described further.
As shown in Figures 1 to 4, a kind of penetrating knife type gate valve, comprise valve assembly 1 and drive unit 2, described valve assembly 1 comprises valve body 11, valve gap 12, valve rod 13, flashboard 14 and pressing plate 15, valve gap 12 is installed on valve body 11, valve body 11 be provided with medium channel 111 and for flashboard 14, run through penetrate mouthfuls 112, valve rod 13 one end are passed valve gap 12 and are connected with the flashboard 14 in being located at valve body 11, described flashboard 14 comprises can be for the through hole 141 of medium circulation, described valve body 11 comprises upper valve body 113 and lower valve body 114, described upper valve body 113 is provided with for preventing that medium from entering the spoiler 1131 of upper valve body 113 and the locating slot 1132 that supplies spoiler 1131 phase embeddings, described spoiler 1131 and hinged (herein it should be noted that of described locating slot 1132, described spoiler 1131 can be according to the unlatching of valve, closing direction is different, be located at upper valve body 113 or lower valve body 114, during as valve closing, through hole 141 enters lower valve body 114, spoiler 1131 is just arranged at lower valve body 114).
At described upper valve body 113, spoiler 1131 is set, at knife gate valve, close, the through hole 141 of flashboard 14 is while entering upper valve body 113, utilize spoiler 1131 to continue to move up with flap by block media, and by the gap of 113 of flashboard 14 and upper valve bodies, medium is pushed back in the medium channel 111 of valve body 11, thereby prevent that the media attachment of some thickness is on the through hole 141 at flashboard 14, and along with flashboard 14 enters valve body 11, even taken out of; In addition, locating slot 1132 is set for spoiler 1131 phase embeddings, makes described knife gate valve when opening, when the upper end of flashboard 14 through holes 141 arrives the position of spoiler 1131, spoiler 1131 is advanced to locating slot 1132, prevent that spoiler 1131 from stopping that through hole 141 enters medium channel 111.
Described upper valve body 113 comprises and penetrates mouthful inwall 1134, and described locating slot 1132 is located at a side that penetrates mouthful inwall 1134, and the opposite side that penetrates mouthful inwall 1134 is also provided with for preventing the excessively restraining groove 1133 of upset of spoiler 1131.
At the described opposite side that penetrates mouth 112, restraining groove 1133 being set can be when pressure medium be larger; effectively protect described spoiler 1131; prevent that spoiler 1131 is because pressure medium is when excessive; make spoiler 1131 that reverse flip occur, thereby spoiler 1131 lose effect and spoiler 1131 is damaged with the joint of upper valve body 113.
Described flashboard 14 comprises passage upper wall 1411, passage lower wall 1412 and channel side wall 1413, and described passage lower wall 1412 and channel side wall 1413 can be conflicted and be connected spoiler 1131.
When described knife gate valve, close while putting in place, described spoiler 1131 conflict passage lower wall 1412 and channel side walls 1413, make the medium on flashboard 14 by spoiler 1131, be blocked and push back valve body 11 passages completely.
Described spoiler 1131 is connected in described locating slot 1132(by torsion spring 11311 and it should be noted that herein, for guaranteeing the working life of described torsion spring 11311, the present embodiment is preferred, the torsion spring 11311 that scribbles anti-corrosion of metal layer on the surface of torsion spring 11311 or select resistant material to form).
Described spoiler 1131 is connected on described locating slot 1132 by torsion spring 11311, when flashboard 14 cuts out, when passage upper wall 1411 arrives the position of spoiler 1131, spoiler 1131 can eject voluntarily, and the restraining groove 1133 of conflicting, thereby stop medium to be taken out of upper valve body 113.
Described through hole 141 is rectangular through-hole 141.
Through hole 141 is set to rectangle, utilizes rectangle four limits to be the feature of straight line, facilitate processing and the installation of described spoiler 1131, meanwhile, the plane contact between spoiler 1131 and passage lower wall 1412, resistance flowing effect is better.
The surface of described spoiler 1131 is coated with rubber layer 11312.
Rubber has the characteristics such as elasticity, insulating properties, waterproof and air, on described spoiler 1131, be coated with rubber layer 11312, can not only strengthen spoiler 1131 and 113 of upper valve bodies sealing, can also reduce the mutual wearing and tearing with the channel wall of flashboard 14, improves working life.
Described spoiler 1131 upper ends are provided with the filler 16 for preventing that medium from overflowing.
In described spoiler 1131 upper ends, filler 16 is set, can further increases the sealing of described knife gate valve, prevent when valve opening, medium is by penetrating mouthful 112 outflow valve bodies 11.
The above makes preferred implementation of the present utility model, does not depart from for the person of ordinary skill of the art under the prerequisite of the utility model principle, can also make some modification and improvement, and these also should be considered as protection domain of the present utility model.
Claims (7)
1. a penetrating knife type gate valve, comprise valve assembly and drive unit, described valve assembly comprises valve body, valve gap, valve rod, flashboard and pressing plate, valve gap is installed on valve body, valve body be provided with medium channel and for flashboard, run through penetrate mouth, valve rod one end is passed valve gap and is connected with the flashboard in being located at valve body, it is characterized in that: described flashboard comprises can be for the through hole of medium circulation, described valve body comprises upper valve body and lower valve body, described upper valve body is provided with for preventing that medium from entering the spoiler of upper valve body and the locating slot that supplies the embedding of spoiler phase, described spoiler and described locating slot are hinged.
2. penetrating knife type gate valve according to claim 1, is characterized in that: described upper valve body comprises and penetrate a mouthful inwall, and described locating slot is located at a side that penetrates mouthful inwall, and the opposite side that penetrates mouthful inwall is also provided with for preventing the excessively restraining groove of upset of spoiler.
3. penetrating knife type gate valve according to claim 2, is characterized in that: described flashboard comprises passage upper wall, passage lower wall and channel side wall, described passage lower wall and the channel side wall connection spoiler of can conflicting.
4. penetrating knife type gate valve according to claim 3, is characterized in that: described spoiler is connected in described locating slot by torsion spring.
5. according to the penetrating knife type gate valve described in claim 3 or 4, it is characterized in that: described through hole is rectangular through-hole.
6. according to the penetrating knife type gate valve described in claim 1 or 2 or 3 or 4, it is characterized in that: the surface of described spoiler is coated with rubber layer.
7. according to the penetrating knife type gate valve described in claim 1 or 2 or 3 or 4, it is characterized in that: described spoiler upper end is provided with the filler for preventing that medium from overflowing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320608534.3U CN203477382U (en) | 2013-09-27 | 2013-09-27 | Penetrating type knife gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320608534.3U CN203477382U (en) | 2013-09-27 | 2013-09-27 | Penetrating type knife gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203477382U true CN203477382U (en) | 2014-03-12 |
Family
ID=50225713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320608534.3U Expired - Fee Related CN203477382U (en) | 2013-09-27 | 2013-09-27 | Penetrating type knife gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203477382U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11300213B1 (en) | 2021-02-19 | 2022-04-12 | Emerson Automation Solutions Final Control US LP | Floating yoke connection |
| US11499644B2 (en) | 2020-08-25 | 2022-11-15 | Emerson Automation Solutions Final Control US LP | Sealing assembly for a knife gate valve |
-
2013
- 2013-09-27 CN CN201320608534.3U patent/CN203477382U/en not_active Expired - Fee Related
Cited By (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 |
| US11300213B1 (en) | 2021-02-19 | 2022-04-12 | Emerson Automation Solutions Final Control US LP | Floating yoke connection |
| US11603938B2 (en) | 2021-02-19 | 2023-03-14 | Emerson Automation Solutions Final Control US LP | Floating yoke connection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20140312 Termination date: 20180927 |