CN205298608U - Knife gate valve - Google Patents
Knife gate valve Download PDFInfo
- Publication number
- CN205298608U CN205298608U CN201620009675.7U CN201620009675U CN205298608U CN 205298608 U CN205298608 U CN 205298608U CN 201620009675 U CN201620009675 U CN 201620009675U CN 205298608 U CN205298608 U CN 205298608U
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- CN
- China
- Prior art keywords
- groove
- flashboard
- shaped
- seal groove
- sealing strip
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- Expired - Fee Related
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Abstract
The utility model discloses a knife gate valve, its technical scheme main points all are provided with the clearance groove and by interior first U -shaped seal groove and second U -shaped seal groove toward outer interval distribution at the fitting surface of left valve body and right valve body, the valve opening top is arranged in the clearance groove, and clearance groove joint has the sealing rubber piece, is equipped with the spring between the diapire in sealing rubber piece and clearance groove, and the sealing rubber piece is inconsistent with the flashboard, be equipped with the horizontal seal groove rather than being linked together between the both ends of first U -shaped seal groove, the both ends of second U -shaped seal groove are all extended inwards and are formed sealed incision, and sealed incision is located the top of horizontal seal groove, first U -shaped seal groove is equipped with first U -shaped sealing strip, and first U -shaped seal groove is equipped with second U -shaped sealing strip, second horizontal seal groove is equipped with horizontal sealing strip, can prevent that the sealing strip from at the flashboard in -process that goes up and down, taking place the displacement, the flashboard can in time be cleared up to the process of flashboard lift simultaneously.
Description
Technical field
This utility model relates to valve field, more specifically, it relates to a kind of knife gate valve.
Background technology
Knife gate valve is also known as cutter door gate valve, blade type Parallel Slide Valves, and valve body is provided with the valve opening matched with flashboard, and its opening and closing element is flashboard, and the direction of motion of flashboard and flow direction are perpendicular, by the knife-edge flashboard of cutting fiber material cutting off medium. Valve body not actually exists chamber, and flashboard lifts in side guide groove, and is pressed on valve seat by the lug of bottom, wherein arranges the end face of sealing strip and flashboard at side guide groove and is adjacent to formation mutually and seals, ensures the sealing of knife gate valve.
But there is following defect in existing knife gate valve: 1, owing to valve body one piece casting can cause that valve body is difficult to machine, the fitted position precision making valve body is not high, old friends adopt split type valve body, in order to ensure the overall tightness of split type valve body, a gasket seal would generally be increased between left valve barrel and the mating surface of right valve barrel, left valve barrel and right valve barrel compress gasket seal by screw, compaction process is easily caused outside gasket seal deformation extrusion valve body, cause that gasket seal damages, affect overall sealing performance; 2, flashboard is in side guide groove in lifting process, it is easy to causing that the sealing strip being arranged in side guide groove can be subjected to displacement along with flashboard lifting, during closedown, sealing strip effectively cannot seal with the formation of flashboard; 3, flashboard lifts in the gathering sill of valve body side and realizes valve opening and be turned on or off, due to flashboard in use, flashboard can stain stain or granule, if the generation destruction of the sealing strip to valve body side gathering sill is comprehended at place not in time, reduces the service life of knife gate valve.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model is in that to provide the knife gate valve of a kind of simple in construction, good airproof performance, it is possible to prevents sealing strip in flashboard lifting process, is subjected to displacement, and flashboard lifting process can clear up flashboard in time simultaneously.
For achieving the above object, this utility model provides following technical scheme:
A kind of knife gate valve, including valve body and flashboard, described valve body offers the valve opening matched with flashboard, described valve body includes the left valve barrel and the right valve barrel that cooperate, and the mating surface of described left valve barrel and right valve barrel is provided with cleaning groove and by interior first U-shaped seal groove spaced apart outward and the second U-shaped seal groove;Described cleaning groove is placed in above valve opening, and described cleaning groove is connected with caulking gum sheet, is provided with spring between the diapire of described caulking gum sheet and cleaning groove, and described caulking gum sheet is inconsistent with flashboard; Coupled logical transverse sealing groove it is provided with between the both ends of described first U-shaped seal groove; The both ends of described second U-shaped seal groove extend to form sealing otch all inwardly, and described sealing otch is positioned at the top of transverse sealing groove; Described first U-shaped seal groove is provided with the first U-shaped sealing strip, and described first U-shaped seal groove is provided with the second U-shaped sealing strip, and described in second, transverse sealing groove is provided with transverse sealing bar; When the valve is closed, flashboard moves down, and flashboard and the first U-shaped sealing strip and transverse sealing bar fit tightly.
This utility model is arranged further: described first U-shaped sealing strip and transverse sealing bar are integrated setting, described first U-shaped sealing strip and transverse sealing bar and form closed loop shape structure.
This utility model is arranged further: described first U-shaped sealing strip, described second U-shaped sealing strip and transverse sealing bar are hollow rubber weather strip.
This utility model is arranged further: the end face of described first U-shaped sealing strip and transverse sealing bar and rams contact is wavy surface.
This utility model is arranged further: described cleaning groove is circular groove, and the both ends of described circular groove stretch out setting away from valve opening.
This utility model is arranged further: the mating surface of described left valve barrel and right valve barrel is additionally provided with the packing groove for installing airtight and watertight padding respectively, and described packing groove is positioned at the top of transverse sealing groove.
This utility model beneficial effect: valve body adopts split-type structural, is divided into left valve barrel and right valve barrel, it is simple to the machining of valve body, improves dimensional accuracy and the quality of fit of valve body, and when installing, first the first U-shaped sealing strip is set at the first U-shaped seal groove of left valve barrel and right valve barrel, described transverse sealing groove arranges transverse sealing bar, again through the fixing left valve barrel of screw and right valve barrel, the first U-shaped sealing strip and transverse sealing bar is made to be fixed on valve body, will not be subjected to displacement along with flashboard lifting, at left valve barrel and right valve barrel, the second seal groove is set for placing the second sealing strip simultaneously, when left valve barrel and right valve barrel are fixed by screw, second sealing strip will not be deformed, simple in construction, good airproof performance, when knife gate valve needs to open left valve barrel and right valve barrel, second seal still can use, described caulking gum sheet is conflicted on flashboard under the action of the spring all the time, in flashboard oscilaltion process, cleaning effect is played in the surface of flashboard by caulking gum sheet, prevent flashboard can be stained with spot or granule, improve the service life of flashboard, in use, when abrasion occurs caulking gum sheet, caulking gum sheet under the action of the spring or can be conflicted on flashboard simultaneously.
Accompanying drawing explanation
Fig. 1 is the sectional view of a kind of knife gate valve of this utility model;
Fig. 2 is the A partial enlarged drawing in Fig. 1;
Fig. 3 is the front view of left valve barrel;
Fig. 4 is U-shaped sealing strip and the structural representation of transverse sealing bar.
Description of reference numerals: 1, valve body; 1a, left valve barrel; 1b, right valve barrel; 2, flashboard; 3, cleaning groove; 4, the first U-shaped seal groove; 5, the second U-shaped seal groove; 51, otch is sealed; 6, caulking gum sheet; 7, spring; 8, transverse sealing groove; 9, the first U-shaped sealing strip; 10, the second U-shaped sealing strip; 11, transverse sealing bar; 12, packing groove.
Detailed description of the invention
With reference to accompanying drawing to this utility model ... embodiment is described in further details.
A kind of caulking gum structure of knife gate valve, including valve body 1 and flashboard 2, described valve body 1 offers the valve opening matched with flashboard 2, described valve body 1 includes the left valve barrel 1a and the right valve barrel 1b that cooperate, valve body 1 adopts split-type structural, it is divided into left valve barrel 1a and right valve barrel 1b, it is simple to the machining of valve body 1, improves dimensional accuracy and the quality of fit of valve body 1.
The mating surface of described left valve barrel 1a and right valve barrel 1b is provided with cleaning groove 3 and by interior first U-shaped seal groove 4 and the second U-shaped seal groove 5 spaced apart outward, described cleaning groove 3 is placed in above valve opening, described cleaning groove 3 is connected with caulking gum sheet 6, it is provided with spring 7 between the diapire of described caulking gum sheet 6 and cleaning groove 3, described caulking gum sheet 6 is inconsistent with flashboard 2, described cleaning groove 3 is circular groove, the both ends of described circular groove stretch out setting away from valve opening, described cleaning groove 3 is placed in above valve opening, described cleaning groove 3 is connected with caulking gum sheet 6, it is provided with spring 7 between the diapire of described caulking gum sheet 6 and cleaning groove 3, described caulking gum sheet 6 is inconsistent with flashboard 2, in flashboard 2 oscilaltion process, cleaning effect is played in the surface of flashboard 2 by caulking gum sheet 6, prevent flashboard 2 from can stain stain or granule, improve the service life of flashboard 2, in use simultaneously, when there is abrasion in caulking gum sheet 6, caulking gum sheet 6 is under spring 7 acts on or can conflict on flashboard 2.
Wherein said caulking gum sheet 6 is wavy towards the end face of flashboard 2, it is possible to improving the cleaning effect of caulking gum sheet 6, wherein caulking gum sheet 6 adopts polytetrafluoroethylmaterial material to make.
Coupled logical transverse sealing groove 8 it is provided with between the both ends of described first U-shaped seal groove 4, the both ends of described second U-shaped seal groove 5 extend to form sealing otch 51 all inwardly, described sealing otch 51 is positioned at the top of transverse sealing groove 8, the second U-shaped seal groove 5 is made to form secondary seal, it is possible to the sealing property of effective guarantee valve body 1;
Described first U-shaped seal groove 4 is provided with the first U-shaped sealing strip 9, and described second U-shaped seal groove 5 is provided with the second U-shaped sealing strip 10, and described in second, transverse sealing groove 8 is provided with transverse sealing bar 11; The first U-shaped sealing strip 9 and transverse sealing bar 11 is made to be fixed on valve body 1, will not be subjected to displacement along with flashboard 2 lifting, described first U-shaped sealing strip 9 and transverse sealing bar 11 are integrated setting, described first U-shaped sealing strip 9 and transverse sealing bar 11 form airtight circulus, improve the sealing of knife gate valve, be also prevented from the first U-shaped sealing strip 9 simultaneously and transverse sealing bar 11 is subjected to displacement; When the valve is closed, flashboard 2 moves down, and flashboard 2 and the first U-shaped sealing strip 9 and transverse sealing bar 11 fit tightly.
Wherein said first U-shaped sealing strip the 9, second U-shaped sealing strip 10 and transverse sealing bar 11 are hollow rubber weather strip, and the end face that the first U-shaped sealing strip 9 contacts with flashboard 2 with transverse sealing bar 11 is wavy surface, it is possible to improve sealing property.
The mating surface of described left valve barrel 1a and right valve barrel 1b is additionally provided with the packing groove 12 for installing airtight and watertight padding respectively, described packing groove 12 is positioned at the top of transverse sealing groove 8, when the airtight and watertight padding of packing groove 12 damages, transverse sealing bar 11 still can seal, it is not result in leakage, improve the sealing property of knife gate valve, make user of service have enough time to go to change airtight and watertight padding simultaneously.
The above is only preferred implementation of the present utility model, and protection domain of the present utility model is not limited merely to above-described embodiment, and all technical schemes belonged under this utility model thinking belong to protection domain of the present utility model.It should be pointed out that, for those skilled in the art, without departing from the some improvements and modifications under this utility model principle premise, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (6)
1. a knife gate valve, including valve body and flashboard, described valve body offers the valve opening matched with flashboard, it is characterized in that: described valve body includes the left valve barrel and the right valve barrel that cooperate, the mating surface of described left valve barrel and right valve barrel is provided with cleaning groove and by interior first U-shaped seal groove spaced apart outward and the second U-shaped seal groove;
Described cleaning groove is placed in above valve opening, and described cleaning groove is connected with caulking gum sheet, is provided with spring between the diapire of described caulking gum sheet and cleaning groove, and described caulking gum sheet is inconsistent with flashboard;
Coupled logical transverse sealing groove it is provided with between the both ends of described first U-shaped seal groove; The both ends of described second U-shaped seal groove extend to form sealing otch all inwardly, and described sealing otch is positioned at the top of transverse sealing groove; Described first U-shaped seal groove is provided with the first U-shaped sealing strip, and described first U-shaped seal groove is provided with the second U-shaped sealing strip, and described in second, transverse sealing groove is provided with transverse sealing bar;
When the valve is closed, flashboard moves down, and flashboard and the first U-shaped sealing strip and transverse sealing bar fit tightly.
2. a kind of knife gate valve according to claim 1, is characterized in that: described first U-shaped sealing strip and transverse sealing bar are integrated setting, described first U-shaped sealing strip and transverse sealing bar and form closed loop shape structure.
3. a kind of knife gate valve according to claim 2, is characterized in that: described first U-shaped sealing strip, described second U-shaped sealing strip and transverse sealing bar are hollow rubber weather strip.
4. a kind of knife gate valve according to claim 1 or 2 or 3, is characterized in that: the end face of described first U-shaped sealing strip and transverse sealing bar and rams contact is wavy surface.
5. a kind of knife gate valve according to claim 1 or 2 or 3, is characterized in that: described cleaning groove is circular groove, and the both ends of described circular groove stretch out setting away from valve opening.
6. a kind of knife gate valve according to claim 1 or 2 or 3, is characterized in that: the mating surface of described left valve barrel and right valve barrel is additionally provided with the packing groove for installing airtight and watertight padding respectively, and described packing groove is positioned at the top of transverse sealing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620009675.7U CN205298608U (en) | 2016-01-04 | 2016-01-04 | Knife gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620009675.7U CN205298608U (en) | 2016-01-04 | 2016-01-04 | Knife gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205298608U true CN205298608U (en) | 2016-06-08 |
Family
ID=56485962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620009675.7U Expired - Fee Related CN205298608U (en) | 2016-01-04 | 2016-01-04 | Knife gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205298608U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107246478A (en) * | 2017-06-07 | 2017-10-13 | 长沙理工大学 | A kind of O＆M method of gas turbine poppet |
| CN107559436A (en) * | 2017-07-25 | 2018-01-09 | 沈阳大学 | A kind of track type high pressure rubber sealed valve |
| CN111609161A (en) * | 2020-05-09 | 2020-09-01 | 安徽阀瑞流体控制设备有限公司 | High-temperature-resistant valve for industrial sewage treatment system |
-
2016
- 2016-01-04 CN CN201620009675.7U patent/CN205298608U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107246478A (en) * | 2017-06-07 | 2017-10-13 | 长沙理工大学 | A kind of O＆M method of gas turbine poppet |
| CN107559436A (en) * | 2017-07-25 | 2018-01-09 | 沈阳大学 | A kind of track type high pressure rubber sealed valve |
| CN111609161A (en) * | 2020-05-09 | 2020-09-01 | 安徽阀瑞流体控制设备有限公司 | High-temperature-resistant valve for industrial sewage treatment system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20160608 Termination date: 20210104 |