CN202674331U - Pressurizing stop valve - Google Patents
Pressurizing stop valve Download PDFInfo
- Publication number
- CN202674331U CN202674331U CN 201220360146 CN201220360146U CN202674331U CN 202674331 U CN202674331 U CN 202674331U CN 201220360146 CN201220360146 CN 201220360146 CN 201220360146 U CN201220360146 U CN 201220360146U CN 202674331 U CN202674331 U CN 202674331U
- Authority
- CN
- China
- Prior art keywords
- valve
- piston
- relief hole
- inlet channel
- valve body
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 239000000945 filler Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
Landscapes
- Lift Valve (AREA)
- Mechanically-Actuated Valves (AREA)
- Sliding Valves (AREA)
Abstract
The utility model relates to a pressurizing stop valve, which comprises a valve body, a valve clack, a valve rod, a valve deck and a driving mechanism, wherein the valve body is provided with an inlet channel and an outlet channel; a valve seat is arranged between the inlet channel and the outlet channel; the inlet channel is located on the lower side of the valve seat; a piston cylinder is arranged in the central cavity of the valve body; a piston is connected with the back of a valve clack sealing face; the piston is in motive seal fit with the piston; a balance hole is kept between a piston cavity that is formed by the piston, the piston cylinder and the valve deck and the inlet channel; a discharge hole is arranged on the piston for communicating the piston cavity with the outlet channel; and a check valve leading to the outlet channel is arranged in the discharge hole. The medium in the inlet channel can balance the pressure between the upper and lower planes of the valve clack, and reduce the torque borne by the valve rod when the valve is closed. The pressurizing stop valve has the advantages of simple structure, low cost and small starting and stopping torque and the like.
Description
Technical field
The utility model relates to valve field, particularly about a kind of stop valve.
Background technique
Stop valve belongs to forced seal formula valve, when valve closing, must exert pressure to flap, does not leak with forced seal face.When medium was entered by flap below, the required resistance that overcomes of steering force comprised the friction of medium active force, sealing force, valve rod and filler, and it is large that it closes moment, and the diameter of valve rod is large.Particularly heavy caliber, high pressure valve, the active force of medium is very large, most of producer all adopt change MEDIA FLOW to, high in and low out enters valve pocket by the flap top, flap is the bivalve valve seat construction, these all cause complex structure, cost improves.
Summary of the invention
The purpose of this utility model is the problem that exists for prior art, provide a kind of simple in structure, cost is low, open and close the little supercharging stop valve of moment.
The technical solution of the utility model comprises valve body, flap, valve rod, valve gap, driving mechanism, valve body has inlet passage and outlet passage, between inlet passage and outlet passage, be shaped with valve seat, inlet passage is positioned at the valve seat downside, mainly be that the valve body lumen is provided with piston cylinder, the valve clack sealing surface back side connects piston, this piston cooperates with the piston cylinder motive sealing, piston, piston cylinder, be shaped with equalizing orifice between the piston cavity that forms between the valve gap and the inlet passage, be shaped with the relief hole that is communicated with between piston cavity and the outlet passage on the piston, the one-way valve that leads to outlet passage is set in relief hole.
In above technological scheme, described one-way valve is comprised of steel ball, spring, and on spring fitting the getting out of a predicament or an embarrassing situation in relief hole, steel ball is installed between the lower end surface of convex shoulder on spring upper end and the relief hole.
The utility model has the advantages that the valve clack sealing surface back side is shaped with the piston cavity that is communicated with inlet passage, the pressure of lower plane on the inlet passage balanced medium flap, the moment that valve rod bears when reducing valve closing, it is simple in structure, cost is low, it is little to open and close moment.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Supercharging stop valve as shown in Figure 1, comprise valve body 1, flap 2, valve rod 3, valve gap 6, driving mechanism 9, flap 2 is fixedly mounted on the lower end of valve rod 3 by nut 4, valve body 1 has inlet passage and outlet passage, between inlet passage and outlet passage, be shaped with valve seat, inlet passage is positioned at the valve seat downside, consist of medium bottom in and top out structure, valve body 1 lumen is provided with piston cylinder 12, the flap 2 sealing surface back sides connect piston 11, this piston 11 cooperates with piston cylinder 12 motive sealings, piston 11, piston cylinder 12, be shaped with equalizing orifice 13 between the piston cavity that forms between the valve gap 6 and the inlet passage, make the inlet passage medium directly enter piston cavity, the pressure medium of balance flap both ends of the surface about in the of 2 reduces the moment that valve rod 3 bears in the valve closing process.Be shaped with the relief hole 10 that is communicated with between piston cavity and the outlet passage on the piston 11, lead to the one-way valve of outlet passage in relief hole 10 interior settings.
One-way valve is comprised of steel ball, spring, and on spring fitting the getting out of a predicament or an embarrassing situation in relief hole 10, steel ball is installed between the lower end surface of convex shoulder on spring upper end and the relief hole 10.In the valve closing process, pressure medium overcomes spring power in the piston cavity, pushes the steel ball outlet passage of releasing open.
Be provided with sealing gasket 5 between valve body 1 and the valve gap 6, be provided with filler 7 between valve gap 6 and the valve rod 3, this filler 7 is fixedly mounted by pressing plate.Valve rod 3 upper ends are fixedly connected with driving mechanism 9 by Stem Mut 8.
Claims (2)
1. supercharging stop valve, comprise valve body (1), flap (2), valve rod (3), valve gap (6), driving mechanism (9), valve body (1) has inlet passage and outlet passage, between inlet passage and outlet passage, be shaped with valve seat, inlet passage is positioned at the valve seat downside, it is characterized in that valve body (1) lumen is provided with piston cylinder (12), flap (2) the sealing surface back side connects piston (11), this piston (11) cooperates with piston cylinder (12) motive sealing, piston (11), piston cylinder (12), be shaped with equalizing orifice (13) between the piston cavity that forms between the valve gap (6) and the inlet passage, be shaped with the relief hole (10) that is communicated with between piston cavity and the outlet passage on the piston (11), the one-way valve that leads to outlet passage is set in relief hole (10).
2. supercharging stop valve according to claim 1 is characterized in that one-way valve is comprised of steel ball, spring, and on spring fitting the getting out of a predicament or an embarrassing situation in relief hole (10), steel ball is installed in the spring upper end and goes up between the lower end surface of convex shoulder with relief hole (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220360146 CN202674331U (en) | 2012-07-23 | 2012-07-23 | Pressurizing stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220360146 CN202674331U (en) | 2012-07-23 | 2012-07-23 | Pressurizing stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202674331U true CN202674331U (en) | 2013-01-16 |
Family
ID=47495237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220360146 Expired - Fee Related CN202674331U (en) | 2012-07-23 | 2012-07-23 | Pressurizing stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202674331U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791501A (en) * | 2015-04-29 | 2015-07-22 | 中国船舶重工集团公司第七二五研究所 | Bi-directional pressure self-balancing type stop valve |
| CN107387783A (en) * | 2017-09-06 | 2017-11-24 | 苏州良阀阀门有限公司 | A kind of stop valve |
| CN108644397A (en) * | 2018-08-08 | 2018-10-12 | 百强阀门集团有限公司 | Depressurize shut-off valve |
| CN113339579A (en) * | 2021-07-01 | 2021-09-03 | 蓝晶晶 | Built-in pilot type stop valve |
| CN114017540A (en) * | 2021-11-03 | 2022-02-08 | 哈尔滨工程大学 | A low power consumption regulating valve |
-
2012
- 2012-07-23 CN CN 201220360146 patent/CN202674331U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791501A (en) * | 2015-04-29 | 2015-07-22 | 中国船舶重工集团公司第七二五研究所 | Bi-directional pressure self-balancing type stop valve |
| CN107387783A (en) * | 2017-09-06 | 2017-11-24 | 苏州良阀阀门有限公司 | A kind of stop valve |
| CN108644397A (en) * | 2018-08-08 | 2018-10-12 | 百强阀门集团有限公司 | Depressurize shut-off valve |
| CN113339579A (en) * | 2021-07-01 | 2021-09-03 | 蓝晶晶 | Built-in pilot type stop valve |
| CN114017540A (en) * | 2021-11-03 | 2022-02-08 | 哈尔滨工程大学 | A low power consumption regulating 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: 20130116 Termination date: 20160723 |