CN203627851U - Valve-base-less gate valve with inner cavity under no pressure - Google Patents
Valve-base-less gate valve with inner cavity under no pressure Download PDFInfo
- Publication number
- CN203627851U CN203627851U CN201320661286.9U CN201320661286U CN203627851U CN 203627851 U CN203627851 U CN 203627851U CN 201320661286 U CN201320661286 U CN 201320661286U CN 203627851 U CN203627851 U CN 203627851U
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- valve
- pressure
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- hydraulic cylinder
- valve body
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- Expired - Lifetime
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- 238000007789 sealing Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Sliding Valves (AREA)
Abstract
The utility model relates to a valve-base-less gate valve with the inner cavity under no pressure. The gate valve comprises a valve body, valve rods, split valve plates and hydraulic cylinders. A longitudinal flow channel is manufactured in the middle of the valve body, the two split valve plates are symmetrically installed on the two transverse sides, in the middle of the flow channel, in the middle cavity of the valve body, the outer sides of the split valve plates on the two sides are respectively coaxially and fixedly provided with one end of one valve rod, and the other ends of the valve rods are provided with the hydraulic cylinders. The gate valve is not provided with a valve base, the valve plates make tight contact with the valve body, when the gate valve is opened or closed, the middle cavity is sealed through valve plate butt-joint sealing parts and valve plate side wall sealing parts to achieve the effect that the middle cavity is not under pressure, and thus the requirement for no pressure in the inner cavity is met when the valve is opened or closed in special working conditions.
Description
Technical field
The utility model belongs to valve field, especially a kind of without valve base cavity gate valve not with pressure.
Background technique
At present, valve is starting or while closing, realized and being dammed by a certain amount of interference fit between flashboard and valve seat, and inner chamber all exists certain pressure, but due to the needs of special operation condition, and when valve switch, inner chamber is not with pressure belongs to more scabrous technical barrier.
Through retrieval, do not find the public technology identical with present patent application.
Model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art part, provides a kind of without valve base cavity gate valve not with pressure.
The utility model solves its technical problem and takes following technological scheme to realize:
A kind of without valve base cavity gate valve not with pressure, it is characterized in that: comprise valve body, valve rod, opposite opened valve plate and oil hydraulic cylinder, valve body middle part is shaped with longitudinal runner, in the valve body lumen at runner middle part, both lateral sides is all symmetrically installed with a pair of open type valve plate, the opposite opened valve plate outside of these both sides is all coaxially fixed with one end of valve rod, and the valve rod the other end is provided with oil hydraulic cylinder.
And, the opposite opened flashboard of described both sides, the valve rod of both sides and the equal transverse uniaxial setting of oil hydraulic cylinder.
And, the inner chamber of cylinder block of the piston inner side of described oil hydraulic cylinder connects the open check valve that is packed in valve outer wall by passage made in valve body, inner chamber of cylinder block connects the closing one-way valve that is packed in valve outer wall by passage made in valve body outside the piston of oil hydraulic cylinder.
And the surface of contact middle part of the opposite opened valve plate of described both sides is all embedded with a valve plate Butt sealing part.
And the sidewall of the opposite opened valve plate of described and valve body sliding contact is all provided with valve plate sidewall Sealing.
Advantage of the present utility model and good effect are:
1, this valve is in the time of opening state, and pilot pressure, by closing one-way valve entrance pressure, acts on oil hydraulic cylinder epicoele, promotes two opposite opened valve plates simultaneously and moves down, and finally contacts, and is reached the effect of excellent sealing by valve plate Sealing.
2, this gate valve is without valve seat, valve plate contacts sealing with valve body, open or closing process in sealed by valve plate Butt sealing part, valve plate sidewall seal components chamber, reach lumen effect not with pressure, thus inner chamber requirement not with pressure while meeting in special operation condition valve switch.
Accompanying drawing explanation
Fig. 1 is structural front view of the present utility model;
Fig. 2 is that the A-A of Fig. 1 is to structure sectional view.
Embodiment
Below in conjunction with accompanying drawing and by specific embodiment, the utility model is described in further detail, and following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
A kind of without valve base cavity gate valve not with pressure, comprise valve body 1, valve rod 5, opposite opened valve plate 4 and oil hydraulic cylinder 6, direction with accompanying drawing 1 describes, valve body middle part is shaped with longitudinal runner, in the valve body lumen at runner middle part, both lateral sides is all symmetrically installed with a pair of open type valve plate, the opposite opened valve plate outside of these both sides is all coaxially fixed with one end of valve rod, the valve rod the other end is provided with oil hydraulic cylinder, this Driven by Hydraulic Cylinder opposite opened flashboard transverse uniaxial in valve body reciprocatingly slides, and the valve plate of both sides blocks runner when closed to middle part.
The opposite opened flashboard of described both sides, the valve rod of both sides and the equal transverse uniaxial setting of oil hydraulic cylinder.
The structure of described oil hydraulic cylinder as shown in Figure 2, the inner chamber of cylinder block of the piston inner side of oil hydraulic cylinder connects the open check valve 7 that is packed in valve outer wall by passage made in valve body, inner chamber of cylinder block connects the closing one-way valve 8 that is packed in valve outer wall by passage made in valve body outside the piston of oil hydraulic cylinder.
In order to guarantee throttling sealing, the surface of contact middle part of the opposite opened valve plate of described both sides is all embedded with a valve plate Butt sealing part 2.
In order to prevent that medium from flowing into valve body and affect valve, the sidewall of the opposite opened valve plate of described and valve body sliding contact is all provided with valve plate sidewall Sealing 3.
Working procedure of the present utility model is as follows:
While needing Open valve, valve is in closed condition, and pilot pressure acts on oil hydraulic cylinder cavity of resorption by open check valve entrance pressure, promotes two opposite opened valve plates simultaneously and moves up until valve opening.While needing throttle down, valve is in opening state, and pilot pressure acts on oil hydraulic cylinder epicoele by closing one-way valve entrance pressure, promotes two opposite opened valve plates simultaneously and moves down, and opposite opened valve plate is in contact with one another, and is reached the effect of sealing by valve plate Sealing.
Although disclose for the purpose of illustration embodiment of the present utility model and accompanying drawing, but it will be appreciated by those skilled in the art that: not departing from the spirit and scope of the utility model and claims, various replacements, variation and modification are all possible, therefore, scope of the present utility model is not limited to embodiment and the disclosed content of accompanying drawing.
Claims (5)
1. one kind without valve base cavity gate valve not with pressure, it is characterized in that: comprise valve body, valve rod, opposite opened valve plate and oil hydraulic cylinder, valve body middle part is shaped with longitudinal runner, in the valve body lumen at runner middle part, both lateral sides is all symmetrically installed with a pair of open type valve plate, the opposite opened valve plate outside of these both sides is all coaxially fixed with one end of valve rod, and the valve rod the other end is provided with oil hydraulic cylinder.
2. according to claim 1 without valve base cavity gate valve not with pressure, it is characterized in that: the opposite opened flashboard of described both sides, the valve rod of both sides and the equal transverse uniaxial setting of oil hydraulic cylinder.
3. according to claim 1 without valve base cavity gate valve not with pressure, it is characterized in that: the inner chamber of cylinder block of the piston of described oil hydraulic cylinder inner side connects the open check valve that is packed in valve outer wall by passage made in valve body, inner chamber of cylinder block connects the closing one-way valve that is packed in valve outer wall by passage made in valve body outside the piston of oil hydraulic cylinder.
4. according to claim 1 without valve base cavity gate valve not with pressure, it is characterized in that: the surface of contact middle part of the opposite opened valve plate of described both sides is all embedded with a valve plate Butt sealing part.
5. according to claim 1 without valve base cavity gate valve not with pressure, it is characterized in that: the sidewall of the opposite opened valve plate of described and valve body sliding contact is all provided with valve plate sidewall Sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320661286.9U CN203627851U (en) | 2013-10-24 | 2013-10-24 | Valve-base-less gate valve with inner cavity under no pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320661286.9U CN203627851U (en) | 2013-10-24 | 2013-10-24 | Valve-base-less gate valve with inner cavity under no pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203627851U true CN203627851U (en) | 2014-06-04 |
Family
ID=50814332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320661286.9U Expired - Lifetime CN203627851U (en) | 2013-10-24 | 2013-10-24 | Valve-base-less gate valve with inner cavity under no pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203627851U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511650A (en) * | 2013-10-24 | 2014-01-15 | 天津百利展发集团有限公司 | Gate valve without valve seat and without pressure in inner chamber |
-
2013
- 2013-10-24 CN CN201320661286.9U patent/CN203627851U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511650A (en) * | 2013-10-24 | 2014-01-15 | 天津百利展发集团有限公司 | Gate valve without valve seat and without pressure in inner chamber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140604 |