CN201818820U - Gate valve with double flat plates - Google Patents
Gate valve with double flat plates Download PDFInfo
- Publication number
- CN201818820U CN201818820U CN2010201664134U CN201020166413U CN201818820U CN 201818820 U CN201818820 U CN 201818820U CN 2010201664134 U CN2010201664134 U CN 2010201664134U CN 201020166413 U CN201020166413 U CN 201020166413U CN 201818820 U CN201818820 U CN 201818820U
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Abstract
The utility model relates to a valve, in particular to a gate valve with double flat plates. The utility model provides the following technical scheme that: the gate valve with double flat plates comprises a valve body, valve plates, a hand wheel and a valve rod for connecting the hand wheel and the valve plates, wherein a medium admission passage, a medium outflow passage and a connection passage are arranged on the valve body, both sides of the connection passage, which are positioned at the medium admission passage and the medium outflow passage, are provided with valve seats, the valve plates are positioned in the connection passage, form sealing with the valve seats and comprise two valve blocks which are mutually sleeved, the outer sides of the two valve blocks are respectively provided with an alloy-cutting hard sealing ring forming sealing with the valve seats, alloy sealing rings jointed and matched with the alloy-cutting hard sealing rings on the two valve blocks are arranged on the valve seats, an expanding and pressing component for jointing the alloy-cutting hard sealing rings on the two valve blocks and the alloy sealing rings on the valve seats is arranged between the two valve blocks, and the valve rod is connected with the two valve blocks by a hanging and connecting component. By adopting the technical scheme, the utility model provides the gate valve with double flat plates, which prevents particulate impurities from influencing sealing and has good sealing property.
Description
Technical field
The utility model relates to a kind of valve, particularly a kind of gate valve with two flat plates.
Background technique
Gate valve mainly uses in the processing of media such as the grains of sand, filamentary member material and mud.At present, the gate valve that occurs on market and the data is mainly by the handwheel of valve body, valve seat, valve plate, drive valve plate and the valve rod of connection handwheel and valve plate, valve body is provided with medium inlet passage and medium flow pass, pass through the connecting passage conducting between medium inlet passage and the medium flow pass, usually be provided with the oblique groove of pegging graft in the passage of valve body for valve plate, valve plate is by the lever drive valve rod, valve rod drives valve plate along the oblique hook groove in the valve body connecting passage toward polyslip, thereby constitutes the open and close of valve body.
Above-mentioned gate valve is through after using for a long time, in the valve body connecting passage with the oblique groove of valve plate sealing in can some impurity of accumulation, cause the valve plate bottom not fit with the bottom end of the oblique groove of valve body connecting passage, have influence on the sealing of valve body.
The model utility content
At the deficiency that prior art exists, the utility model provides a kind of gate valve with two flat plates that prevents granule foreign influence sealing, good airproof performance.
For achieving the above object, the utility model provides following technological scheme: a kind of gate valve with two flat plates, include valve body, valve plate, the valve rod of the handwheel of drive valve plate and connection handwheel and valve plate, valve body is provided with medium inlet passage and medium flow pass, pass through the connecting passage conducting between medium inlet passage and the medium flow pass, the both sides that connecting passage is positioned at medium inlet passage and medium flow pass are provided with valve seat, described valve plate is in the connecting passage and with valve seat and constitutes sealing, described valve plate is made of the valve piece of two mutual fits, the outside of two valve pieces is respectively equipped with the alloy cutting hard seal ring that constitutes sealing with valve seat, valve seat be provided with two valve pieces on the alloy cutting hard seal ring adaptive alloy seal ring of fitting, be provided with the expansion press part of fitting for alloy seal ring on alloy cutting hard seal ring on the two valve pieces and the valve seat between the described two valve pieces, described valve rod is connected with two valve pieces by hanging part.
Wherein, the expansion press part is a pressure spring, described two valve pieces are divided into left valve piece and right valve piece, a left side valve piece and right valve piece include the base of ring-type respectively and are located at ring set on the base, left side valve piece ring set and right valve piece ring set are sheathed, and the outer circumferential face of the inner peripheral surface of left valve piece ring set and right valve piece ring set is fitted, and described expansion press part is in the right valve piece ring set, and an end and the left valve piece base of expansion press part are conflicted, and the other end and right valve piece base are conflicted.
Adopt technique scheme; valve plate is made up of two valve pieces; be respectively equipped with alloy cutting hard seal ring and alloy seal ring on two valve pieces and the valve seat; when valve plate enters connecting passage medium inlet passage and medium flow pass is sealed; if the surface of the last alloy seal ring of valve seat is covered with impurity particle; since the expansion press part between the two valve pieces with the expansion of the alloy cutting hard seal ring on the two valve pieces be compressed to valve seat on the alloy seal ring position of fitting; so impurity particle can be cut off by the alloy cutting hard seal ring on the valve piece; make the Sealing of valve piece and valve seat can keep sealing, thereby improve the sealability of gate valve.
The utility model further is set to: be provided with limit assembly between the two valve pieces, this limit assembly includes the limit sliding chutes be located at respectively on the left valve piece ring set inner peripheral surface, be located on the right valve piece ring set outer circumferential face and standing groove and an end corresponding with left valve piece ring set upper limit chute are in the standing groove, and the other end is in the limiting stopper in the limit sliding chutes.
Adopt technique scheme, the setting of limit assembly can be carried out the expansion distance of two valve pieces spacing between the two valve pieces, prevent to expand to compress two valve pieces are expanded to the position that can't seal, guaranteed that the alloy cutting hard seal ring on the two valve pieces is corresponding to the applying position with alloy seal ring on the valve seat.
The utility model further is set to: hanging part includes connecting end and articulated end, and its connecting end is connected in the shape of a spiral with valve rod, and the articulated end place is provided with the hanging groove sheathed with valve plate.
Adopt technique scheme, hanging part mainly plays interconnect function as the link between valve rod and the valve plate, and it connects simply the linkage structure compactness.
The utility model further is set to: the hanging groove at articulated end place and left valve piece ring set cover are provided with, the diameter of hanging part hanging groove is greater than the outer circumference diameter of left valve piece ring set, the tip portion of hanging groove is provided with triangular groove, and the bottom is an arc groove, and two inclined-planes of triangular groove are to compress with left valve piece ring set and cooperate.
Adopt technique scheme, the diameter of the hanging groove of hanging part is greater than the outer circumference diameter of left valve piece ring set, and the tip portion of hanging groove is provided with triangular groove, the bottom is an arc groove, two inclined-planes of triangular groove are to compress with left valve piece ring set and cooperate, be provided with like this is when closing medium intervention passage for valve rod actuating valve piece, can the top of valve piece be compressed, strengthened sealability, the arc groove of hanging part bottom then is for valve rod can be promoted the valve piece comparatively stably, prevents the fine motion of valve piece and causes alloy ring wear on alloy cutting hard seal ring on the valve piece and the valve seat.
Below in conjunction with accompanying drawing the utility model is further described:
Description of drawings
Fig. 1 is the utility model embodiment's a structural representation;
Fig. 2 is the I portion enlarged view of Fig. 1;
Fig. 3 is the structural representation of hanging part among the utility model embodiment;
Fig. 4 is the structural representation of left valve piece among the utility model embodiment;
Fig. 5 is the structural representation of right valve piece among the utility model embodiment.
Embodiment
As Fig. 1-a kind of gate valve with two flat plates shown in Figure 5, include valve body 1, valve plate 2, the valve rod 4 of the handwheel 3 of drive valve plate 2 and connection handwheel 2 and valve plate 2, valve body 1 is provided with medium inlet passage 11 and medium flow pass 12, pass through connecting passage 13 conductings between medium inlet passage 11 and the medium flow pass 12, the both sides that connecting passage 13 is positioned at medium inlet passage 11 and medium flow pass 12 are provided with valve seat 5, described valve plate 2 is in the connecting passage 13 and with valve seat 5 and constitutes sealing, valve plate 2 is made of the valve piece of two mutual fits, the outside of two valve pieces is respectively equipped with the alloy cutting hard seal ring 21 that constitutes sealing with valve seat 5, valve seat 5 be provided with two valve pieces on the alloy cutting hard seal ring 21 adaptive alloy seal ring 51 of fitting, be provided with the expansion press part 6 of fitting between the two valve pieces for alloy seal ring on alloy cutting hard seal ring on the two valve pieces 21 and the valve seat 5 51, described valve rod 4 is connected with valve plate 2 by hanging part 7, hanging part 7 includes connecting end 71 and articulated end 72, its connecting end 71 is connected in the shape of a spiral with valve rod 4, and articulated end 72 places are provided with the hanging groove 721 sheathed with valve plate 2.After adopting above-mentioned technical approach; when valve plate 2 enters 13 pairs of medium inlet passages 11 of connecting passage and medium flow pass 12 and seals; if the surface of the alloy seal ring 51 on the valve seat 5 is covered with impurity particle; since the expansion press part 6 between the two valve pieces with 21 expansions of the alloy cutting hard seal ring on the two valve pieces be compressed to valve seat 5 on alloy seal ring 51 position of fitting; so impurity particle can be cut off by the alloy cutting hard seal ring on the valve piece 21; make the Sealing of valve piece and valve seat 5 can keep sealing, thereby improve the sealability of gate valve.
In the utility model embodiment, expansion press part 6 is a pressure spring, two valve pieces are divided into left valve piece 22 and right valve piece 23, a left side valve piece 22 and right valve piece 23 include the base of ring-type respectively and are located at ring set on the base, left side valve piece ring set 221 is sheathed with right valve piece ring set 231, the inner peripheral surface 2211 of left side valve piece ring set 221 is fitted with the outer circumferential face 2311 of right valve piece ring set 231, described expansion press part 6 is in the right valve piece ring set 231, and an end of expansion press part 6 and left valve piece base 222 are conflicted, and the other end and right valve piece base 232 are conflicted.Need to prove, the diameter of right valve piece ring set 231 also can be greater than the diameter of left valve piece ring set 221, make that right valve piece ring set 231 is sheathed with left valve piece ring set 221, behind the utility model embodiment, so simple mapping mode need not to pay any performing creative labour and just can accomplish; In the utility model embodiment, be provided with limit assembly 24 between left side valve piece 22 and the right valve piece 23, this this limit assembly 24 includes the limit sliding chutes 241 be located at respectively on left valve piece ring set 221 inner peripheral surfaces 2211, be located on right valve piece ring set 231 outer circumferential faces 2311 and standing groove 242 and an end corresponding with left valve piece ring set 221 upper limit chutes 241 is in the standing groove 242, and the other end is in the limiting stopper 243 in the limit sliding chutes 241.Need to prove, if expansion press part 6 can reach the effect of anticipation, the alloy cutting hard seal rings 21 on it of both just left valve piece 22 and 23 expansions of right valve piece can having been conflicted can be in valve seat 5 on the position of alloy seal ring 51 corresponding applyings, it is also feasible to need not to be provided with limit assembly 24, just expand press part 6 after using after a while, the elastic force of itself can change, after elastic force changes, then can impact sealing, so the utility model has added one group of auxiliary spacing limit assembly 24, has guaranteed alloy cutting hard seal ring 21 and the 51 corresponding applyings of alloy seal ring.
In the utility model embodiment, the hanging groove 721 at articulated end 72 places of hanging part 7 is provided with left valve piece ring set 221 covers, the diameter of hanging part 7 hanging grooves 721 is greater than the outer circumference diameter of left valve piece ring set 221, the tip portion of hanging groove 721 is provided with triangular groove 722, the bottom is an arc groove 723, and two inclined-planes 7221 of triangular groove 722 are to compress with left valve piece ring set 221 and cooperate.Be provided with like this is when closing medium intervention passage 11 for valve rod 4 actuating valve pieces, can the top of valve piece be compressed, strengthened sealability, 723 of the arc grooves of hanging part 7 bottoms are for valve rod 4 can be promoted the valve piece comparatively stably, prevent the fine motion of valve piece and cause alloy seal ring 51 wearing and tearing on alloy cutting hard seal ring 21 and the valve seat 5 on the valve piece.
Claims (5)
1. gate valve with two flat plates, include valve body, valve plate, the valve rod of the handwheel of drive valve plate and connection handwheel and valve plate, valve body is provided with medium inlet passage and medium flow pass, pass through the connecting passage conducting between medium inlet passage and the medium flow pass, the both sides that connecting passage is positioned at medium inlet passage and medium flow pass are provided with valve seat, described valve plate is in the connecting passage and with valve seat and constitutes sealing, it is characterized in that: described valve plate is made of the valve piece of two mutual fits, the outside of two valve pieces is respectively equipped with the alloy cutting hard seal ring that constitutes sealing with valve seat, valve seat be provided with two valve pieces on the alloy cutting hard seal ring adaptive alloy seal ring of fitting, be provided with the expansion press part of fitting for alloy seal ring on alloy cutting hard seal ring on the two valve pieces and the valve seat between the described two valve pieces, described valve rod is connected with two valve pieces by hanging part.
2. gate valve with two flat plates according to claim 1, it is characterized in that: described expansion press part is a pressure spring, described two valve pieces are divided into left valve piece and right valve piece, a left side valve piece and right valve piece include the base of ring-type respectively and are located at ring set on the base, left side valve piece ring set and right valve piece ring set are sheathed, the inner peripheral surface of left side valve piece ring set and the outer circumferential face of right valve piece ring set are fitted, described expansion press part is in the right valve piece ring set, and an end and the left valve piece base of expansion press part are conflicted, and the other end and right valve piece base are conflicted.
3. gate valve with two flat plates according to claim 1 and 2, it is characterized in that: be provided with limit assembly between the described two valve pieces, this limit assembly includes the limit sliding chutes be located at respectively on the left valve piece ring set inner peripheral surface, be located on the right valve piece ring set outer circumferential face and standing groove and an end corresponding with left valve piece ring set upper limit chute are in the standing groove, and the other end is in the limiting stopper in the limit sliding chutes.
4. gate valve with two flat plates according to claim 1 is characterized in that: described hanging part includes connecting end and articulated end, and its connecting end is connected in the shape of a spiral with valve rod, and the articulated end place is provided with the hanging groove sheathed with valve plate.
5. two dull and stereotyped flashboard according to claim 4, it is characterized in that: the hanging groove at described articulated end place and left valve piece ring set cover are provided with, the diameter of hanging part hanging groove is greater than the outer circumference diameter of left valve piece ring set, the tip portion of hanging groove is provided with triangular groove, the bottom is an arc groove, and two inclined-planes of triangular groove are to compress with left valve piece ring set and cooperate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201664134U CN201818820U (en) | 2010-04-15 | 2010-04-15 | Gate valve with double flat plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201664134U CN201818820U (en) | 2010-04-15 | 2010-04-15 | Gate valve with double flat plates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201818820U true CN201818820U (en) | 2011-05-04 |
Family
ID=43916772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201664134U Expired - Fee Related CN201818820U (en) | 2010-04-15 | 2010-04-15 | Gate valve with double flat plates |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201818820U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678954A (en) * | 2012-05-17 | 2012-09-19 | 东莞宏威数码机械有限公司 | Single-surface sealed and two-way pressure bearing vacuum gate valve device |
-
2010
- 2010-04-15 CN CN2010201664134U patent/CN201818820U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678954A (en) * | 2012-05-17 | 2012-09-19 | 东莞宏威数码机械有限公司 | Single-surface sealed and two-way pressure bearing vacuum gate valve device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20120415 |