CN204942576U - Gate valve - Google Patents
Gate valve Download PDFInfo
- Publication number
- CN204942576U CN204942576U CN201520623661.XU CN201520623661U CN204942576U CN 204942576 U CN204942576 U CN 204942576U CN 201520623661 U CN201520623661 U CN 201520623661U CN 204942576 U CN204942576 U CN 204942576U
- Authority
- CN
- China
- Prior art keywords
- ball
- valve
- chute
- positioning convex
- radius
- 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
Links
- 239000004576 sand Substances 0.000 abstract 6
- 230000007423 decrease Effects 0.000 description 4
- 239000004809 Teflon Substances 0.000 description 3
- 229920006362 Teflon® Polymers 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Taps Or Cocks (AREA)
Abstract
The utility model discloses a valve, its technical scheme main points are valve, including valve body, valve gap, valve rod, valve plate, location sand grip, spout, state and set up vertical location sand grip on the inside wall of valve body, the side of valve plate seted up with location sand grip complex spout, the sand grip is provided with open-ended ball chamber towards the one side of spout, the ball intracavity is provided with the ball, the protruding opening part in ball chamber of ball, the spout passes through ball and location sand grip slip linkage, can reduce the friction of spout and location sand grip like this, reduces the damage degree of valve plate and valve body, and is light laborsaving when also making the valve open and close more.
Description
Technical field
The utility model relates to a kind of valve, and more particularly, it relates to a kind of gate valve.
Background technique
At present, on market, the patent No. is CN200720085352.7, name is called heavy caliber transmission & distribution water cast iron gate valve, disclose and a kind ofly relate to heavy caliber transmission & distribution water cast iron gate valve water-supply pipeline blocking or is communicated with medium, its Electric actuator at valve top part and valve shaft connect, valve shaft is connected with flashboard by Stem Mut, ram seal circle, valve seals is respectively on the flashboard, valve body of wedge shape, its sealing surface all arranges Drop-proof seam, have employed 4 fixed idler whells at valve plate and body cavity simultaneously and lead.Reduce the frictional force of seal ring in the sealing pair engagement process of this model utility and ensure that the parallelism of ram seal face and valve body sealing surface.
Although this gate valve ensure that the parallelism of valve body and valve plate, decrease frictional force, but arranging of roller needs to take a large amount of valve inner spaces, and need a series of supporting structure such as rotating shaft, bearing, the structure in above-mentioned patent is caused to be only applicable to the gate valve of large scale, large volume, Industrial Applicability is little, is difficult to promote.
Model utility content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of and reduces frictional force between valve plate and valve body, structure gate valve simple, applied widely.
For achieving the above object, the utility model provides following technological scheme: a kind of gate valve, comprise valve body, valve gap, valve rod, valve plate, described valve body is connected with valve bonnet seal, described valve rod is located on described valve gap, described stem lower portion is provided with a valve plate, the madial wall of described valve body arranges vertical positioning convex strip, the side opening of described valve plate is provided with the chute coordinated with positioning convex strip, it is characterized by described raised line is provided with opening ball chamber towards the one side of chute, ball is provided with in described ball chamber, the protruding opening in ball chamber of described ball, described chute is slided by ball and positioning convex strip and links.
Further, described positioning convex strip comprises the body and cover plate that are fixedly connected with, and described body offers pit, described cover plate offers through hole, the opening radius of described pit is greater than the radius of ball, and the radius of described through hole is less than the radius of ball, and through hole and pit are combined to form described ball chamber.
Further, described ball chamber comprises cavity and limited ring, and the arranged outside of described limited ring has outside thread, and the inner side of described cavity is provided with internal thread, and described limited ring is threaded with cavity.
Further, described ball is provided with spring between the one side of chute and ball chamber dorsad.
Further, described ball and ball cavity wall are made up of teflon.
The utility model has the advantage of: ball becomes a roller structure at positioning convex strip internal production, reduces the friction between valve body and valve plate, operate more laborsaving light.Compared to existing technology, the utility model takes up room little, is not only only applicable to the gate valve of large scale, large volume, implements also convenient.
Accompanying drawing explanation
Fig. 1 is the sectional view of the utility model gate valve embodiment gate valve;
Fig. 2 is the sectional view of the utility model gate valve embodiment valve body;
Fig. 3 is the enlarged view of the utility model gate valve embodiment's valve body and valve plate contact position;
Fig. 4 is the magnified partial view of positioning convex strip in the utility model gate valve the second embodiment;
Fig. 5 is the magnified partial view of positioning convex strip in the first embodiment of the utility model gate valve;
Reference character: 1, valve body; 2, valve rod; 3, valve gap; 4, valve plate; 5, positioning convex strip; 6, ball; 7, ball chamber; 8, spring; 9, chute; 10, limited ring; 11, cavity; 12, cover plate; 13, body.
Embodiment
Referring to figs. 1 through Fig. 5, the utility model gate valve embodiment is described further.
A kind of gate valve, comprise valve body 1, valve gap 3, valve rod 2, valve plate 4, described valve body 1 is tightly connected by double-threaded screw with valve gap 3, described valve rod 2 is located on described valve gap 3, described valve rod 2 bottom arranges a valve plate 4, the madial wall of described valve body 1 arranges vertical positioning convex strip 5, and the side opening of described valve plate 4 is provided with the chute 9 coordinated with positioning convex strip 5, and size, the size of positioning convex strip 5 and chute 9 all adapt.Described raised line 5 is provided with the ball chamber 7 of opening towards the one side of chute 9, ball 6 is provided with in described ball chamber 7, the size in ball chamber 7 is slightly larger than ball 6, the opening of described ball 6 projection in ball chamber 7, utilize ball 6 projection to conflict at the part chute 9 in ball chamber 7, thus realize the sliding friction of chute 9 and positioning convex strip 5.
The utility model also further provides improvement project, increase the space in ball chamber 7, ball 6 is provided with spring 8 between the one side of chute 9 and ball chamber 7 dorsad, spring 8 extrudes ball 6, keeps the protruding opening in ball chamber 7 in one end of ball 6, only contacts between ball 6 with spring 8, be not connected, therefore, ball 6 can roll arbitrarily in ball chamber 7, and described chute 9 is slided by ball 6 and positioning convex strip 5 and links.
The first scheme: described positioning convex strip 5 comprises the body 13 and cover plate 12 that are fixedly connected with, described body offers pit, described cover plate 12 offers through hole, the opening radius of described pit is greater than the radius of ball 6, make ball 6 directly can put into pit, the radius of described through hole is less than the radius of ball 6, and ball 6 not only protrudes but also can not drop out from through hole from through hole, adopt the mode of welding to be fixed on body 13 by cover plate 12, make through hole and pit be combined to form described ball chamber 7.
First scheme: described ball chamber 7 comprises cavity 11 and limited ring 10, identical with the first scheme, the opening radius of cavity 11 is greater than ball 6 radius, the inner ring radius of limited ring 10 is then less than ball 6 radius, the arranged outside of described limited ring 10 has outside thread, and the inner side of described cavity 11 is provided with internal thread, described limited ring 10 size just in time can with ball 6 clamping, ball 6 is protruded in collar extension, and described limited ring 10 is threaded with cavity 11.
Above present two kinds of mode of executions for placing ball 6 in ball chamber 7, in addition, described ball 6 and ball grooves 7 surface are made up of teflon, teflon has high temperature resistant, corrosion-resistant, that friction factor is low, stability is high advantage, effectively decreases the friction between chute 9 and positioning convex strip 5, decreases the frictional force between ball 6 and ball grooves 7, decrease damage, not easily be corroded, be also not easy accumulation dust and dirt, add working life.
The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technological schemes belonged 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, do not departing from the some improvements and modifications 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 gate valve, comprise valve body, valve gap, valve rod, valve plate, described valve body is connected with valve bonnet seal, described valve rod is located on described valve gap, described stem lower portion is provided with a valve plate, the madial wall of described valve body arranges vertical positioning convex strip, the side opening of described valve plate is provided with the chute coordinated with positioning convex strip, it is characterized in that: described raised line is provided with the ball chamber of opening towards the one side of chute, ball is provided with in described ball chamber, the protruding opening in ball chamber of described ball, described chute is slided by ball and positioning convex strip and links.
2. gate valve according to claim 1, it is characterized in that: described positioning convex strip comprises the body and cover plate that are fixedly connected with, described body offers pit, described cover plate offers through hole, the opening radius of described pit is greater than the radius of ball, the radius of described through hole is less than the radius of ball, and through hole and pit are combined to form described ball chamber.
3. gate valve according to claim 1, is characterized in that: described ball chamber comprises cavity and limited ring, and the arranged outside of described limited ring has outside thread, and the inner side of described cavity is provided with internal thread, and described limited ring is threaded with cavity.
4. gate valve according to claim 1 and 2, is characterized in that: described ball is provided with spring between the one side of chute and ball chamber dorsad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520623661.XU CN204942576U (en) | 2015-08-18 | 2015-08-18 | Gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520623661.XU CN204942576U (en) | 2015-08-18 | 2015-08-18 | Gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204942576U true CN204942576U (en) | 2016-01-06 |
Family
ID=55010008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520623661.XU Expired - Fee Related CN204942576U (en) | 2015-08-18 | 2015-08-18 | Gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204942576U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109931434A (en) * | 2017-12-18 | 2019-06-25 | 中核苏阀科技实业股份有限公司 | A kind of low friction valve rod anti-rotation guide frame |
-
2015
- 2015-08-18 CN CN201520623661.XU patent/CN204942576U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109931434A (en) * | 2017-12-18 | 2019-06-25 | 中核苏阀科技实业股份有限公司 | A kind of low friction valve rod anti-rotation guide frame |
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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: 20160106 Termination date: 20170818 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |