CN203532809U - Knife-shaped gate valve - Google Patents
Knife-shaped gate valve Download PDFInfo
- Publication number
- CN203532809U CN203532809U CN201320569830.7U CN201320569830U CN203532809U CN 203532809 U CN203532809 U CN 203532809U CN 201320569830 U CN201320569830 U CN 201320569830U CN 203532809 U CN203532809 U CN 203532809U
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- Prior art keywords
- valve
- flashboard
- liquid
- valve seat
- valve body
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- Expired - Fee Related
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Abstract
The utility model discloses a knife-shaped gate valve. The knife-shaped gate valve comprises a valve body, a valve seat, a gate plate, a valve rod and a driving mechanism. The valve body is provided with a liquid flow channel, and the liquid flow channel comprises a liquid inlet channel and a liquid outlet channel. The valve seat is arranged in the liquid outlet channel. The gate plate is perpendicular to the liquid flow channel to be arranged inside the valve body. One end of the valve rod is connected with the gate plate, and the other end of the valve rod is in linkage with the driving mechanism. An annular liquid blocking boss is arranged in the liquid inlet channel in a surrounding mode, the liquid blocking boss comprises a connecting part and a butting part, and one end of the butting part is used for being connected with the gate plate in a butting mode. The connecting part and the valve body are integrally arranged, one end face of the butting part is fixedly connected with the connecting part, the axial length of the butting part is larger than the axial length of the connecting part, and the inner diameter of the valve seat is slightly larger than the inner diameter of the butting part. The knife-shaped gate valve is good in airtightness, little in medium sedimentation, and capable of being started and stopped more easily.
Description
Technical field
The utility model relates to a kind of valve, and more particularly, it relates to a kind of cutter type gate valve.
Background technique
Cutter type gate valve claims again cutter door gate valve, cutter type Parallel Slide Valves, and its open-shut device is flashboard, moving direction and the flow direction of flashboard are perpendicular.Cutter type gate valve is on the basis of common gate valve, changes dull and stereotyped valve plate into knife type valve plate.By knife-edge flashboard that can cutting fiber material, cut off medium, flashboard has two sealing surfaces, and two sealing surfaces of the most frequently used pattern gate valve form wedge shape, key groove is different with valve parameter, are generally 50, the flashboard of wedge-type cutter type gate valve can be made an integral body, is called rigidity flashboard; Also can make the flashboard that can produce micro-deformation, to improve its manufacturability, make up the deviation that sealing surface angle produces in course of working, this flashboard is called Flexible disc.In fact there is not chamber in valve body, flashboard lifting in side guide groove, and being pressed on valve seat by the lug of bottom, while reaching higher medium-tight as need, can select O shape seal valve seat to realize two way sealed.Cutter type gate valve has less installing space, and working pressure is low, is difficult for piling up foreign material, and price is lower.
Existing cutter type gate valve comprises valve body, valve seat, flashboard, valve rod and driving mechanism, described valve body is provided with liquid chunnel, described liquid chunnel comprises feed pathway and liquid outlet channel, described valve seat is located in liquid outlet channel and is used in conjunction with flashboard, the vertical liquid chunnel of described flashboard is arranged in valve body, valve interior wall is provided with the draw-in groove of depression, when cutting out, flashboard snaps in the break-make of blocking medium in draw-in groove, described valve rod one end is connected with flashboard, the other end and driving mechanism interlock, when work, driving mechanism band ovable valve stem moves up and down, drive flashboard lifting to block or open liquid chunnel and from feed pathway, enter valve body by medium, by liquid outlet channel, flowed out.Because the combination between valve body and flashboard is to snap in draw-in groove by flashboard to realize, easily there is dielectric leakage, flashboard is moving downward while blocking liquid chunnel in addition, and liquid can be deposited on draw-in groove bottom, thereby causes flashboard to close difficulty.
Model utility content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of cutter type gate valve, and this kind Gate-valve sealing is better and dielectric deposition is less, and it is easier to open and close.
For achieving the above object, the utility model provides following technological scheme:
A kind of cutter type gate valve, comprise valve body, valve seat, flashboard, valve rod and driving mechanism, described valve body is provided with liquid chunnel, described liquid chunnel comprises feed pathway and liquid outlet channel, described valve seat is located in liquid outlet channel, the vertical liquid chunnel of described flashboard is arranged in valve body, described valve rod one end is connected with flashboard, the other end and driving mechanism interlock, in described feed pathway, be arranged with the gear liquid boss of ring-type, described gear liquid boss comprises joint and the contact part of one end for conflicting and be connected with flashboard, described joint and valve body are wholely set, described contact part one end face is fixedly connected with joint, described contact part axial length is greater than joint axial length, described valve seat bore is slightly larger than contact part internal diameter.
By adopting technique scheme, gear liquid boss is set in liquid outlet channel, it is high that joint and valve body are wholely set fastness, contact part axial length is greater than joint axial length, one end and the valve interior wall of the corresponding valve interior wall in contact part leave gap like this, coordinate valve seat and seal ring to be tong-like and when flashboard cuts out, tightly block firm flashboard good airproof performance, and when closing flashboard, flashboard moves downward and blocks liquid chunnel drive media flow, the effect of buffer medium can be played in space between valve seat and conflict contact part, when flashboard cuts out, dielectric deposition is less and can not be difficult to close because of the dielectric deposition in gap, valve seat bore is greater than contact part internal diameter, what medium can be more prone to like this enters valve body by feed pathway, the keying of valve is more prone to.
The utility model is further set to: described liquid outlet channel is the assembly department that is step-like setting, and described valve seat is connected with assembly department.
By adopting technique scheme, liquid outlet channel is provided with step-like assembly department, between valve seat and valve body, is connected close and firm more.
The utility model is further set to: a side of the relative flashboard of described valve seat is provided with the seal groove arranging ringwise, and described seal groove external diameter and contact part external diameter are suitable, in described seal groove, are embedded with seal ring.
By adopting technique scheme, in a side of the relative flashboard of valve seat, seal groove and seal ring are set, strengthened the sealing between valve seat and flashboard.
The utility model is further set to: the other end of the relative valve rod of described flashboard is provided with wedge shape chamfering.
By adopting technique scheme, the impact force between the medium that wedge shape chamfering reduces flashboard when closed and in liquid chunnel is set, flashboard cuts out and is more prone to.
Accompanying drawing explanation
Fig. 1 is the utility model cutter type gate valve embodiment's structural representation;
Fig. 2 is the A portion enlarged view in Fig. 1.
Reference character:
1, driving mechanism; 2, valve rod; 3, valve body; 4, flashboard; 41, feed pathway; 42, liquid outlet channel; 43, gear liquid boss; 431, joint; 432, contact part; 5, valve seat; 6, seal ring.
Embodiment
Referring to figs. 1 through Fig. 2, the utility model cutter type gate valve embodiment is described further.
A kind of cutter type gate valve, comprise valve body 3, valve seat 5, flashboard 4, valve rod 2 and driving mechanism 1, described valve body 3 is provided with liquid chunnel, described liquid chunnel comprises feed pathway 41 and liquid outlet channel 42, described valve seat 5 is located in liquid outlet channel 42, the vertical liquid chunnel of described flashboard 4 is arranged in valve body 3, described valve rod 2 one end are connected with flashboard 4, the other end and driving mechanism 1 interlock, in described feed pathway 41, be arranged with the gear liquid boss 43 of ring-type, described gear liquid boss 43 comprises joint 431 and the contact part 432 of one end for conflicting and be connected with flashboard 4, described joint 431 is wholely set with valve body 3, described contact part 432 1 end faces are fixedly connected with joint 431, described contact part 432 axial lengths are greater than joint 431 axial lengths, described valve seat 5 internal diameters are slightly larger than contact part 432 internal diameters.
By adopting technique scheme, at the interior gear liquid boss 43 that arranges of liquid outlet channel 42, it is high that joint 431 and valve body 3 are wholely set fastness, contact part 432 axial lengths are greater than joint 431 axial lengths, one end of corresponding valve body 3 inwalls in contact part 432 and valve body 3 inwalls leave gap like this, coordinate valve seat 5 and seal ring 6 to be tong-like and when flashboard 4 cuts out, tightly block firm flashboard 4 good airproof performances, and when closing flashboard 4, flashboard 4 moves downward and blocks liquid chunnel drive media flow, the effect of buffer medium can be played in space between valve seat 5 and conflict contact part 432, when flashboard 4 cuts out, dielectric deposition is less and can not be difficult to close because of the dielectric deposition in gap, valve seat 5 internal diameters are greater than contact part 432 internal diameters, what medium can be more prone to like this enters valve body 3 by feed pathway 41, the keying of valve is more prone to.
Described liquid outlet channel 42 is for being the assembly department of step-like setting, and described valve seat 5 is connected with assembly department.By adopting technique scheme, liquid outlet channel 42 is provided with step-like assembly department, between valve seat 5 and valve body 3, is connected close and firm more.
One side of described valve seat 5 relative flashboards 4 is provided with the seal groove arranging ringwise, and described seal groove external diameter and contact part 432 external diameters are suitable, are embedded with seal ring 6 in described seal groove.By adopting technique scheme, in a side of valve seat 5 relative flashboards 4, seal groove and seal ring 6 are set, strengthened the sealing of 4, valve seat 5 and flashboard.
The other end of described flashboard 4 relative valve rods 2 is provided with wedge shape chamfering.By adopting technique scheme, the impact force between the medium that wedge shape chamfering reduces flashboard 4 when closed and in liquid chunnel is set, flashboard 4 cuts out and is more prone to.
The above is only preferred implementation of the present utility model, and protection domain of the present utility model is also not only confined to above-described embodiment, and all technological schemes belonging under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not depart under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (4)
1. a cutter type gate valve, comprise valve body, valve seat, flashboard, valve rod and driving mechanism, described valve body is provided with liquid chunnel, described liquid chunnel comprises feed pathway and liquid outlet channel, described valve seat is located in liquid outlet channel, the vertical liquid chunnel of described flashboard is arranged in valve body, described valve rod one end is connected with flashboard, the other end and driving mechanism interlock, it is characterized in that: the gear liquid boss that is arranged with ring-type in described feed pathway, described gear liquid boss comprises joint and the contact part of one end for conflicting and be connected with flashboard, described joint and valve body are wholely set, described contact part one end face is fixedly connected with joint, described contact part axial length is greater than joint axial length, described valve seat bore is slightly larger than contact part internal diameter.
2. cutter type gate valve according to claim 1, is characterized in that: described liquid outlet channel is the assembly department that is step-like setting, and described valve seat is connected with assembly department.
3. cutter type gate valve according to claim 2, is characterized in that: a side of the relative flashboard of described valve seat is provided with the seal groove arranging ringwise, and described seal groove external diameter and contact part external diameter are suitable, in described seal groove, are embedded with seal ring.
4. according to the cutter type gate valve described in any one in claims 1 to 3, it is characterized in that: the other end of the relative valve rod of described flashboard is provided with wedge shape chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320569830.7U CN203532809U (en) | 2013-09-13 | 2013-09-13 | Knife-shaped gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320569830.7U CN203532809U (en) | 2013-09-13 | 2013-09-13 | Knife-shaped gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203532809U true CN203532809U (en) | 2014-04-09 |
Family
ID=50419018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320569830.7U Expired - Fee Related CN203532809U (en) | 2013-09-13 | 2013-09-13 | Knife-shaped gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203532809U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747782A (en) * | 2015-01-30 | 2015-07-01 | 武汉理工大学 | Sluice valve |
| CN104482235B (en) * | 2014-12-17 | 2017-01-04 | 河南盛誉实业有限公司 | A kind of knife gate valve |
| CN111503341A (en) * | 2020-03-24 | 2020-08-07 | 杭州富阳恒通机电工程有限公司 | Special pneumatic gate valve for block materials |
-
2013
- 2013-09-13 CN CN201320569830.7U patent/CN203532809U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482235B (en) * | 2014-12-17 | 2017-01-04 | 河南盛誉实业有限公司 | A kind of knife gate valve |
| CN104747782A (en) * | 2015-01-30 | 2015-07-01 | 武汉理工大学 | Sluice valve |
| CN111503341A (en) * | 2020-03-24 | 2020-08-07 | 杭州富阳恒通机电工程有限公司 | Special pneumatic gate valve for block materials |
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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 |
Granted publication date: 20140409 Termination date: 20140913 |
|
| EXPY | Termination of patent right or utility model |