CN202451867U - Gate valve - Google Patents
Gate valve Download PDFInfo
- Publication number
- CN202451867U CN202451867U CN2012200444117U CN201220044411U CN202451867U CN 202451867 U CN202451867 U CN 202451867U CN 2012200444117 U CN2012200444117 U CN 2012200444117U CN 201220044411 U CN201220044411 U CN 201220044411U CN 202451867 U CN202451867 U CN 202451867U
- Authority
- CN
- China
- Prior art keywords
- voussoir
- wedge block
- valve
- flashboards
- going
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a gate valve, which includes a valve body, a valve rod and a valve seat that are mutually matched, as well as two flat flashboards arranged in the valve body, wherein the two flat flashboards are positioned on the two sides of the valve body respectively and are mutually parallel; an upper wedge block is arranged at the lower end of the valve rod; horizontal holes are arranged in the middle of the upper wedge block; the two flat flashboards are particularly positioned in the horizontal holes; a lower wedge block is sleeved at the lower part of the upper wedge block; the upper wedge block and the lower wedge block are provided with mutually matched inclined surfaces respectively; a compression spring is arranged between the upper wedge block and the lower wedge block; and a nonmetal seal ring and a metal seal ring that are mutually matched are arranged on corresponding seal surfaces among the valve seat and the flat flashboards. The gate valve has higher entire air-tightness.
Description
Technical field
The utility model relates to valve technology field, particularly a kind of gate valve.
Background technique
Gate valve is as a kind of comparatively common valving; Long developing history is arranged,, advantages such as directionless restriction are installed because that it has a circulating resistance is little; Be widely used in the numerous areas of national economy, become one of consumption maximum, the most widely used valve.
Gate valve of the prior art; In order to improve it along the seal action power on the conduit axis direction; Usually can add wedge structure; Making when closing gate valve exerts pressure on the voussoir plane of inclination again obtains the pressure along the conduit axis direction, thereby makes and obtain the better seal effect between flashboard and the valve seat.Yet the structure of this kind gate valve is generally comparatively complicated, and boundary dimension is bigger, and required assembly space is bigger, has limited its Applicable scope to a certain extent.Simultaneously, when gate valve is under the higher operating mode of operational pressure, though its sealability meeting pressure raises and descends.
Therefore, the sealability that how to improve gate valve is the important technological problems that those skilled in the art need solve at present.
The model utility content
The purpose of the utility model provides a kind of gate valve, and the sealability of this gate valve is better.
For solving the problems of the technologies described above, the utility model provides a kind of gate valve, comprises the valve body, valve rod and the valve seat that cooperatively interact; Also comprise two dull and stereotyped flashboards that are arranged in the said valve body; Two said dull and stereotyped flashboards lay respectively at the both sides of said valve body, and two said dull and stereotyped flashboards are parallel to each other, and the lower end of said valve rod is provided with voussoir; Said middle part of going up voussoir has horizontal hole, and two said dull and stereotyped flashboards specifically are positioned at said horizontal hole;
Said below of going up voussoir is set with lower wedge block, and said going up has adaptive inclined-plane each other respectively on voussoir and the said lower wedge block, and said going up between voussoir and the said lower wedge block is provided with pressure spring;
Said valve seat is provided with nonmetal seal ring and the metal o-ring that cooperatively interacts with corresponding sealing surface between said dull and stereotyped flashboard.
Preferably; The middle part of said lower wedge block has and the said suitable receiving hole of voussoir of going up; The said voussoir of going up specifically is arranged in the said receiving hole; Fit tightly between the hole wall of the said bottom surface of going up voussoir and said receiving hole, and said pressure spring specifically be arranged at said between the hole wall of bottom surface and said receiving hole of voussoir.
Above-mentioned background is technological relatively, and the gate valve that the utility model provided comprises the valve body, valve rod and the valve seat that cooperatively interact; Also comprise two dull and stereotyped flashboards that are arranged in the said valve body; Two said dull and stereotyped flashboards lay respectively at the both sides of said valve body, and two said dull and stereotyped flashboards are parallel to each other, and the lower end of said valve rod is provided with voussoir; Said middle part of going up voussoir has horizontal hole, and two said dull and stereotyped flashboards specifically are positioned at said horizontal hole; Said below of going up voussoir is set with lower wedge block, and said going up has adaptive inclined-plane each other respectively on voussoir and the said lower wedge block, and said going up between voussoir and the said lower wedge block is provided with pressure spring; Said valve seat is provided with nonmetal seal ring and the metal o-ring that cooperatively interacts with corresponding sealing surface between said dull and stereotyped flashboard.In the using process; When the said pressure spring between voussoir on said and the said lower wedge block is compressed; The said voussoir of going up contacts with inclined surface between said lower wedge block, and along the bearing of trend generation relative displacement on said inclined-plane, make place said on the said dull and stereotyped flashboard of voussoir and said lower wedge block both sides strutted and pushed on the sealing surface of seat of said valve body; Simultaneously; Said nonmetal seal ring and said metal o-ring cooperatively interact, and with the formation double sealing structure, thereby make the overall tightness of said gate valve correspondingly to improve.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The assembly structure schematic representation of the gate valve that Fig. 1 is provided for a kind of embodiment of the utility model.
Embodiment
The core of the utility model provides a kind of gate valve, and the sealability of this gate valve is better.
In order to make those skilled in the art person understand the utility model scheme better, the utility model is done further to specify below in conjunction with accompanying drawing and embodiment.
Please refer to Fig. 1, the assembly structure schematic representation of the gate valve that Fig. 1 is provided for a kind of embodiment of the utility model.
In embodiment, the gate valve that the utility model provided comprises the valve body 11, valve rod 12 and the valve seat that cooperatively interact; Also comprise two dull and stereotyped flashboards 13 that are arranged in the valve body 11; Two dull and stereotyped flashboards 13 lay respectively at the both sides of valve body 11, and two dull and stereotyped flashboards 13 are parallel to each other, and the lower end of valve rod 12 is provided with voussoir 14; The middle part of last voussoir 14 has horizontal hole, and two dull and stereotyped flashboards 13 specifically are positioned at said horizontal hole; The below of last voussoir 14 is set with lower wedge block 15, has adaptive inclined-plane each other on last voussoir 14 and the lower wedge block 15 respectively, and is provided with pressure spring 16 between last voussoir 14 and the lower wedge block 15; Said valve seat is provided with nonmetal seal ring 17 and the metal o-ring that cooperatively interacts with the corresponding sealing surface of 13 on dull and stereotyped flashboard.In the using process; When the pressure spring 16 between last voussoir 14 and lower wedge block 15 is compressed; Last voussoir 14 contacts with the inclined surface of 15 of lower wedge blocks, and the bearing of trend generation relative displacement on said inclined-plane, edge, makes to place the voussoir 14 and the dull and stereotyped flashboard 13 of lower wedge block 15 both sides to be strutted and push on the sealing surface of seat of valve body 11; Simultaneously; Nonmetal seal ring 17 cooperatively interacts with said metal o-ring, with the formation double sealing structure, thereby makes the overall tightness of said gate valve correspondingly to improve.
Further; The middle part of lower wedge block 15 has the receiving hole suitable with last voussoir 14; Last voussoir 14 specifically is arranged in the said receiving hole; Fit tightly between the bottom surface of last voussoir 14 and the hole wall of said receiving hole, and pressure spring 16 specifically is arranged between the hole wall of bottom surface and said receiving hole of voussoir 14.
Can know that to sum up the gate valve that provides in the utility model comprises the valve body, valve rod and the valve seat that cooperatively interact; Also comprise two dull and stereotyped flashboards that are arranged in the said valve body; Two said dull and stereotyped flashboards lay respectively at the both sides of said valve body, and two said dull and stereotyped flashboards are parallel to each other, and the lower end of said valve rod is provided with voussoir; Said middle part of going up voussoir has horizontal hole, and two said dull and stereotyped flashboards specifically are positioned at said horizontal hole; Said below of going up voussoir is set with lower wedge block, and said going up has adaptive inclined-plane each other respectively on voussoir and the said lower wedge block, and said going up between voussoir and the said lower wedge block is provided with pressure spring; Said valve seat is provided with nonmetal seal ring and the metal o-ring that cooperatively interacts with corresponding sealing surface between said dull and stereotyped flashboard.In the using process; When the said pressure spring between voussoir on said and the said lower wedge block is compressed; The said voussoir of going up contacts with inclined surface between said lower wedge block, and along the bearing of trend generation relative displacement on said inclined-plane, make place said on the said dull and stereotyped flashboard of voussoir and said lower wedge block both sides strutted and pushed on the sealing surface of seat of said valve body; Simultaneously; Said nonmetal seal ring and said metal o-ring cooperatively interact, and with the formation double sealing structure, thereby make the overall tightness of said gate valve correspondingly to improve.
More than the gate valve that the utility model provided has been carried out detailed introduction.Used concrete example among this paper the principle and the mode of execution of the utility model are set forth, above embodiment's explanation just is used to help to understand the method and the core concept thereof of the utility model.Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (2)
1. gate valve; Comprise the valve body, valve rod and the valve seat that cooperatively interact, it is characterized in that: also comprise two dull and stereotyped flashboards that are arranged in the said valve body, two said dull and stereotyped flashboards lay respectively at the both sides of said valve body; And two said dull and stereotyped flashboards are parallel to each other; The lower end of said valve rod is provided with voussoir, and said middle part of going up voussoir has horizontal hole, and two said dull and stereotyped flashboards specifically are positioned at said horizontal hole;
Said below of going up voussoir is set with lower wedge block, and said going up has adaptive inclined-plane each other respectively on voussoir and the said lower wedge block, and said going up between voussoir and the said lower wedge block is provided with pressure spring;
Said valve seat is provided with nonmetal seal ring and the metal o-ring that cooperatively interacts with corresponding sealing surface between said dull and stereotyped flashboard.
2. gate valve as claimed in claim 1; It is characterized in that: the middle part of said lower wedge block has and the said suitable receiving hole of voussoir of going up; The said voussoir of going up specifically is arranged in the said receiving hole; Fit tightly between the hole wall of the said bottom surface of going up voussoir and said receiving hole, and said pressure spring specifically be arranged at said between the hole wall of bottom surface and said receiving hole of voussoir.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200444117U CN202451867U (en) | 2012-02-10 | 2012-02-10 | Gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200444117U CN202451867U (en) | 2012-02-10 | 2012-02-10 | Gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202451867U true CN202451867U (en) | 2012-09-26 |
Family
ID=46867733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200444117U Expired - Fee Related CN202451867U (en) | 2012-02-10 | 2012-02-10 | Gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202451867U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776239A (en) * | 2015-03-30 | 2015-07-15 | 苏州福润机械有限公司 | Wedge type dual gate valve |
| CN108591503A (en) * | 2018-05-22 | 2018-09-28 | 南通市力沛流体阀业有限公司 | A kind of Novel Brake Valve |
-
2012
- 2012-02-10 CN CN2012200444117U patent/CN202451867U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776239A (en) * | 2015-03-30 | 2015-07-15 | 苏州福润机械有限公司 | Wedge type dual gate valve |
| CN108591503A (en) * | 2018-05-22 | 2018-09-28 | 南通市力沛流体阀业有限公司 | A kind of Novel Brake Valve |
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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: 20120926 Termination date: 20170210 |