CN103115159A - Gate valve - Google Patents
Gate valve Download PDFInfo
- Publication number
- CN103115159A CN103115159A CN2013100144111A CN201310014411A CN103115159A CN 103115159 A CN103115159 A CN 103115159A CN 2013100144111 A CN2013100144111 A CN 2013100144111A CN 201310014411 A CN201310014411 A CN 201310014411A CN 103115159 A CN103115159 A CN 103115159A
- Authority
- CN
- China
- Prior art keywords
- groove
- valve body
- gate plate
- rubber gate
- rubber flashboard
- 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.)
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Abstract
The invention discloses a gate valve which comprises a valve body, a rubber gate plate inserting hole, a rubber gate plate, guide rails and guide grooves. A valve body channel is arranged inside the valve body. The rubber gate plate inserting hole is formed in the valve body, and the guide rails are arranged on the inner wall of the rubber gate plate inserting hole in a pairwise mode. The guide grooves are respectively formed in two side portions of the rubber gate plate. A groove is formed in the middle of the end face of the lower edge portion of the rubber gate plate, and a pressurized groove is formed in the side portion of the lower edge portion of the rubber gate plate. When the rubber gate plate is inserted into the rubber gate plate inserting hole along the guide rails, the guide grooves are inserted into the guide rails. When the upper portion of the rubber gate plate is pressed forcefully, two ends of the groove can tightly contact with the inner wall of the valve body channel, and so that sealing of the valve body channel is achieved. According to the technical scheme, lip-shaped sealing ribs at two ends of the groove enable the adaptation performance of the rubber gate plate and the valve body channel to be good, the pressurized groove is formed in the side portion of the lower edge portion of the rubber gate plate, even in a fluid low pressure state, the valve body channel can also be well sealed, the sealing performance is better in a fluid high pressure state, and operation torsion is extremely small.
Description
Technical field
The present invention relates to a kind of improvement of gate valve, particularly a kind of moment of torsion of closing the rubber flashboard is little, and the good gate valve of sealability.
Background technique
As shown in accompanying drawing 1-4, traditional gate valve adopts circumferential sealing usually, and traditional gate valve comprises valve body 1, rubber flashboard patchhole 3, rubber flashboard 4, guide rail 5, guide groove 6; Be provided with valve channel 2 in described valve body 1; Described rubber flashboard patchhole 3 is arranged on valve body 1, is provided with in couples guide rail 5 on the inwall of described rubber flashboard patchhole 3; The both sides of described rubber flashboard 4 are provided with respectively guide groove 6; The middle part of the end face of the lower edge of described rubber flashboard 4 is provided with groove; The two ends of described groove are provided with sealed muscle 7; When rubber flashboard 4 inserted rubber flashboard patchhole 3 along guide rail 5, guide groove 6 inserted on guide rail 5; With the top of defeating rubber flashboard 4, can make the inwall close contact of sealed muscle 7 and valve channel 2, realize partition, sealing to valve channel 2.The curve parameter of described sealed muscle and the inwall of valve channel match, and when the rubber flashboard presses down, realize sealing.The shortcoming of this sealing configuration is: 1, sealing is unreliable, when particularly fluid is in low pressure or high pressure, easily leaks; Need to firmly press down when 2, closing, also namely operate moment of torsion and increase, cause the practical quality of valve to descend.
Summary of the invention
The present invention seeks to provide in order to overcome the deficiencies in the prior art a kind of moment of torsion of closing the rubber flashboard little, and the good gate valve of sealability.
For achieving the above object, the technical solution used in the present invention is: a kind of gate valve comprises valve body, rubber flashboard patchhole, rubber flashboard, guide rail, guide groove; Be provided with valve channel in described valve body; Described rubber flashboard patchhole is arranged on valve body, is provided with in couples guide rail on the inwall of described rubber flashboard patchhole; The both sides of described rubber flashboard are provided with respectively guide groove; The middle part of the end face of the lower edge of described rubber flashboard is provided with groove; The sidepiece of the lower edge of described rubber flashboard is provided with the supercharging groove; When the rubber flashboard inserted rubber flashboard patchhole along guide rail, guide groove inserted on guide rail; When with the top of defeating the rubber flashboard, can make the two ends of described groove and the inwall close contact of valve channel, realize the sealing to valve channel.
Preferably, the opening of described supercharging groove be arranged in parallel towards the medial axis with valve channel.
Preferably, the two ends of described groove are provided with lip shape sealed muscle.
Due to the utilization of technique scheme, the present invention compared with prior art has following advantages:
The described gate valve of the present invention program, the two ends lip shape sealed muscle of described groove makes the Adapter Property of rubber flashboard and valve channel good, the sidepiece of the lower edge of described rubber flashboard is provided with the supercharging groove, even also sealed valve body passage well under the fluid low-pressure state, sealability under the fluid high-pressure state is better, and the operation moment of torsion is minimum.
Description of drawings
Below in conjunction with accompanying drawing, technical solution of the present invention is described further:
Sectional view when accompanying drawing 1 partly opens and closes state for existing gate valve;
Accompanying drawing 2 is the sectional view of accompanying drawing 1;
Sectional view when accompanying drawing 3 is existing gate valve closed condition;
Accompanying drawing 4 is the sectional view of accompanying drawing 3;
Sectional view when accompanying drawing 5 is gate valve closed condition of the present invention;
Accompanying drawing 6 is the sectional view of accompanying drawing 5;
Wherein: 1, valve body; 2, valve channel; 3, rubber flashboard patchhole; 4, rubber flashboard; 5, guide rail; 6, guide groove; 7, sealed muscle; 14, rubber flashboard; 16, guide groove; 17, sealed department; 18, supercharging groove.
Embodiment
The present invention is described in further detail below in conjunction with drawings and the specific embodiments.
Accompanying drawing 5-6 is the described a kind of gate valve of the present invention program, comprises valve body 1, rubber flashboard patchhole 3, rubber flashboard 14, guide rail 5, guide groove 16; Be provided with valve channel 2 in described valve body 1; Described rubber flashboard patchhole 3 is arranged on valve body 1, is provided with in couples guide rail 5 on the inwall of described rubber flashboard patchhole 3; The both sides of described rubber flashboard 14 are provided with respectively guide groove 16; The middle part of the end face of the lower edge of described rubber flashboard 14 is provided with groove, and groove two ends arrange lip shape sealed muscle (seeing Fig. 6); The sidepiece of the lower edge of described rubber flashboard 14 is provided with supercharging groove 18; The opening of described supercharging groove 18 is towards the setting consistent with the valve channel medial axis, when valve body passage 2 to obtain larger hydrodynamic pressure; When rubber flashboard 14 inserted rubber flashboard patchhole 3 along guide rail 5, guide groove 16 inserted on guide rail 5; When with the top of defeating rubber flashboard 14, can make the lip shape sealed muscle that arranges on the two ends of described groove as the inwall close contact of sealed department 17 with valve channel 2, realize the sealing to valve channel 2.
Working principle of the present invention is: during the gate valve closing operation, as long as the sealed department 17 of the lower edge of rubber flashboard 14 contacts with the inwall one of valve channel 2, fluid is obstructed, hydrodynamic pressure begins to rise, and hydrodynamic pressure just produces a downward thrust in supercharging groove 18, sealed department 17 is pressed on the inwall of valve channel 2, this thrust is along with the increase of hydrodynamic pressure increases, hydrodynamic pressure is larger, and sealed department 17 is pressed tightlyer, and sealing effect just better.
The described gate valve of the present invention program, the two ends lip shape sealed muscle of described groove makes the Adapter Property of rubber flashboard and valve channel good, the sidepiece of the lower edge of described rubber flashboard is provided with the supercharging groove, even also sealed valve body passage well under the fluid low-pressure state, sealability under the fluid high-pressure state is better, and the operation moment of torsion is minimum.
Above-described embodiment only is explanation technical conceive of the present invention and characteristics; its purpose is to allow person skilled in the art scholar can understand content of the present invention and be implemented; can not limit protection scope of the present invention with this; all equivalences that Spirit Essence is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (3)
1. a gate valve, comprise valve body, rubber flashboard patchhole, rubber flashboard, guide rail, guide groove; Be provided with valve channel in described valve body; Described rubber flashboard patchhole is arranged on valve body, is provided with in couples guide rail on the inwall of described rubber flashboard patchhole; The both sides of described rubber flashboard are provided with respectively guide groove; The middle part of the end face of the lower edge of described rubber flashboard is provided with groove; It is characterized in that: the sidepiece of the lower edge of described rubber flashboard is provided with the supercharging groove; When the rubber flashboard inserted rubber flashboard patchhole along guide rail, guide groove inserted on guide rail; When with the top of defeating the rubber flashboard, can make the two ends of described groove and the inwall close contact of valve channel, realize partition, sealing to valve channel.
2. gate valve according to claim 1, it is characterized in that: the opening of described supercharging groove be arranged in parallel towards the medial axis with valve channel.
3. gate valve according to claim 1 and 2, it is characterized in that: the two ends of described groove are provided with lip shape sealed muscle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100144111A CN103115159A (en) | 2013-01-16 | 2013-01-16 | Gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100144111A CN103115159A (en) | 2013-01-16 | 2013-01-16 | Gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103115159A true CN103115159A (en) | 2013-05-22 |
Family
ID=48413573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100144111A Pending CN103115159A (en) | 2013-01-16 | 2013-01-16 | Gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103115159A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542116A (en) * | 2013-10-25 | 2014-01-29 | 刘英爵 | Soft seal gate valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6338469B1 (en) * | 1997-01-22 | 2002-01-15 | Kalsi Engineering, Inc. | Flexible wedge gate valve |
| CN201412541Y (en) * | 2009-05-18 | 2010-02-24 | 南方阀门制造有限公司 | Pipe washing valve |
| CN201944316U (en) * | 2011-04-06 | 2011-08-24 | 福建旗胜阀门科技有限公司 | High temperature and high pressure wedge brake valve |
| CN202451866U (en) * | 2012-01-13 | 2012-09-26 | 凯泰阀门(集团)有限公司 | Improved soft sealing gate valve |
| CN102713379A (en) * | 2010-01-25 | 2012-10-03 | Vat控股公司 | Vacuum valve |
| CN203272837U (en) * | 2013-01-16 | 2013-11-06 | 许宏伟 | Sluice valve |
-
2013
- 2013-01-16 CN CN2013100144111A patent/CN103115159A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6338469B1 (en) * | 1997-01-22 | 2002-01-15 | Kalsi Engineering, Inc. | Flexible wedge gate valve |
| CN201412541Y (en) * | 2009-05-18 | 2010-02-24 | 南方阀门制造有限公司 | Pipe washing valve |
| CN102713379A (en) * | 2010-01-25 | 2012-10-03 | Vat控股公司 | Vacuum valve |
| CN201944316U (en) * | 2011-04-06 | 2011-08-24 | 福建旗胜阀门科技有限公司 | High temperature and high pressure wedge brake valve |
| CN202451866U (en) * | 2012-01-13 | 2012-09-26 | 凯泰阀门(集团)有限公司 | Improved soft sealing gate valve |
| CN203272837U (en) * | 2013-01-16 | 2013-11-06 | 许宏伟 | Sluice valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542116A (en) * | 2013-10-25 | 2014-01-29 | 刘英爵 | Soft seal gate valve |
| CN103542116B (en) * | 2013-10-25 | 2016-07-13 | 刘英爵 | A kind of soft sealing gate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| DD01 | Delivery of document by public notice |
Addressee: Xu Hongwei Document name: Notification that Application Deemed to be Withdrawn |
|
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130522 |