CN104455576A - Swing check valve - Google Patents
Swing check valve Download PDFInfo
- Publication number
- CN104455576A CN104455576A CN201410606087.7A CN201410606087A CN104455576A CN 104455576 A CN104455576 A CN 104455576A CN 201410606087 A CN201410606087 A CN 201410606087A CN 104455576 A CN104455576 A CN 104455576A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- sealing gasket
- pressing plate
- valve seat
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The invention relates to a swing check valve. The swing check valve comprises a valve body, wherein an inlet channel and an outlet channel are formed in the left end and right end of the valve body respectively, a middle head gasket is installed at the upper end of the valve body, a valve deck is connected to the upper end of the middle head gasket, a valve seat is arranged on the right side of the inlet channel, a rocker bar is hinged to the right end of the valve seat, a rocker bar shaft is connected to the upper end of the rocker bar, a sealing gasket is arranged at the left end of the valve seat, a pressing plate is arranged at the left end of the sealing gasket, the pressing plate is tightly connected with the sealing gasket through a bolt, the diameter of the pressing plate is smaller than that of the inlet channel, and the diameter of the sealing gasket is larger than that of the inlet channel. According to the swing check valve, the sealing performance of the valve body is guaranteed, it is guaranteed that the valve body is not crashed when the valve seat is closed, high using efficiency is guaranteed, and the service life of the valve body is prolonged.
Description
Technical field
The present invention relates to a kind of valve, specifically a kind of Swing check valve.
Background technique
Swing check valve is also known as one-way valve or check valve, and its effect prevents the medium in pipeline from flowing backwards.Open-shut device leans on the strength of media flow or manually opened or closedown, and the valve flow backwards to prevent medium is on safety check.Safety check belongs to self-acting valve class, is mainly used on the pipeline of medium one-way flow, only allows medium to flow to a direction, to try to avert accidents.
At present on the market most of this kind of check valve receptacle when closing and valve body produce and collide, valve interior wall is easily made easily to be damaged, some valve bodies have also installed cushion pad, sealing gasket on valve seat, but after this material contact liq, often there is swelling, this situation often causes its cushion pad, the sealing of sealing gasket declines greatly.Therefore, should ensure the sealing of valve body, ensureing that valve seat can not break valve body when closing again is current stubborn problem the most.
Summary of the invention
For above-mentioned technical problem, the present invention proposes the sealing that should ensure valve body, ensure that valve seat can not break a kind of Swing check valve of valve body when closing again.
A kind of Swing check valve, comprise valve body, described valve body left end, right-hand member is respectively equipped with inlet passage, outlet passage, described valve body upper end is provided with middle head gasket, described middle head gasket upper end is connected with valve gap, valve seat is provided with on the right side of described inlet passage, described valve seat right-hand member is hinged with rocking bar, described rocking bar upper end portion is connected with rocker shaft, described valve seat left end is provided with sealing gasket, described sealing gasket left end is provided with pressing plate, described pressing plate is by bolt and sealing gasket, pressing plate is closely connected, described pressing plate diameter is less than inlet passage diameter, sealing gasket diameter is greater than inlet passage diameter.Inlet passage, outlet passage are used for liquid turnover, and rocking bar can be opened or close the flow and the circulation that control liquid by Non-follow control valve seat.When sealing gasket 6 is for cushioning closedown, valve seat is to the impact force of valve body.Sealing gasket to be pressed on valve seat by bolt by pressing plate just can sealing gasket Long contact time liquid and cause internal expansion.
Described rocker shaft front end is connected by hexagonal spiro plug and valve body.Prevent the gap between rocker shaft and valve body from making liquid side leakage.
The invention has the beneficial effects as follows:
Core of the present invention to be pressing plate to be pressed on sealing gasket on valve seat by bolt just can sealing gasket Long contact time liquid and cause internal expansion.This method should ensure the sealing of valve body, can not break valve body when ensureing that valve seat is closed again, has ensured good utilization efficiency and the working life that improve valve body.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, invention is further illustrated.
Fig. 1 is structural representation of the present invention.
Embodiment
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below the present invention being set forth further.
As shown in Figure 1, a kind of Swing check valve, comprise valve body 1, described valve body 1 left end, right-hand member is respectively equipped with inlet passage 2, outlet passage 3, described valve body 1 upper end is provided with middle head gasket 4, described middle head gasket 4 upper end is connected with valve gap 5, valve seat 8 is provided with on the right side of described inlet passage 2, described valve seat 8 right-hand member is hinged with rocking bar 9, described rocking bar 9 upper end portion is connected with rocker shaft 10, described valve seat 8 left end is provided with sealing gasket 6, described sealing gasket 6 left end is provided with pressing plate 7, described pressing plate 7 is by bolt and sealing gasket 6, pressing plate 7 is closely connected, described pressing plate 7 diameter is less than inlet passage 2 diameter, sealing gasket 6 diameter is greater than inlet passage 2 diameter.Inlet passage 2, outlet passage 3 are for liquid turnover, and rocking bar 9 can be opened or close to control flow and the circulation of liquid by Non-follow control valve seat 8.The impact force of valve seat 8 pairs of valve bodies when sealing gasket 6 is for cushioning closedown.Sealing gasket 6 to be pressed on valve seat by bolt by pressing plate 7 just can sealing gasket 6 Long contact time liquid and cause internal expansion.
Described rocker shaft 10 front end is connected by hexagonal spiro plug and valve body 1.Prevent the gap between rocker shaft 10 and valve body 1 from making liquid side leakage.
During use, only need pass into liquid at inlet passage 2 passage place, liquid upwards backs down after valve seat 8 flows through valve inner by self impact force and flows out from outlet passage 3.
When flowing through, people manually can carry out control valve seat 8 by rocking bar 9 and be rotated down and control flow rate of liquid, flow.After liquid stream is complete, valve seat 8 to the bottom under self gravitation effect, until sealing gasket 6 and valve body 1 inwall are fitted, can stop liquid backflow.
More than show and describe basic principle of the present invention, major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; the just principle of the present invention described in above-described embodiment and specification; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in claimed the present invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (2)
1. a Swing check valve, comprise valve body (1), described valve body (1) left end, right-hand member is respectively equipped with inlet passage (2), outlet passage (3), described valve body (1) upper end is provided with middle head gasket (4), described middle head gasket (4) upper end is connected with valve gap (5), described inlet passage (2) right side is provided with valve seat (8), described valve seat (8) right-hand member is hinged with rocking bar (9), described rocking bar (9) upper end portion is connected with rocker shaft (10), described valve seat (8) left end is provided with sealing gasket (6), it is characterized in that: described sealing gasket (6) left end is provided with pressing plate (7), described pressing plate (7) is by bolt and sealing gasket (6), pressing plate (7) is closely connected, described pressing plate (7) diameter is less than inlet passage (2) diameter, sealing gasket (6) diameter is greater than inlet passage (2) diameter.
2. a kind of Swing check valve according to claim 1, is characterized in that: described rocker shaft (10) front end is connected by hexagonal spiro plug (11) and valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410606087.7A CN104455576A (en) | 2014-10-30 | 2014-10-30 | Swing check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410606087.7A CN104455576A (en) | 2014-10-30 | 2014-10-30 | Swing check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104455576A true CN104455576A (en) | 2015-03-25 |
Family
ID=52902099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410606087.7A Pending CN104455576A (en) | 2014-10-30 | 2014-10-30 | Swing check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104455576A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112648406A (en) * | 2020-12-21 | 2021-04-13 | 浙江宣达环境科技股份有限公司 | Wear-resistant turnover plate reversing valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191402254A (en) * | 1914-01-28 | 1914-10-29 | John Beardsell Broadhead | Improvements in or relating to Retaining or Non-return Valves. |
| DE2721176A1 (en) * | 1977-05-11 | 1978-11-23 | Westark Armaturen | Power station pipe cut=off valve - has plate shaft movable freely in housing via bridge and bearing consoles extending downwards |
| CN103104346A (en) * | 2011-11-11 | 2013-05-15 | 空中客车运营有限公司 | Clack valve assembly and assembling method thereof, fuel system and airport having the same |
| CN103644333A (en) * | 2013-11-28 | 2014-03-19 | 山东建华阀门制造有限公司 | Swing check valve |
| CN203770745U (en) * | 2013-09-26 | 2014-08-13 | 芜湖杰诺科技有限公司 | Automatic check valve |
-
2014
- 2014-10-30 CN CN201410606087.7A patent/CN104455576A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191402254A (en) * | 1914-01-28 | 1914-10-29 | John Beardsell Broadhead | Improvements in or relating to Retaining or Non-return Valves. |
| DE2721176A1 (en) * | 1977-05-11 | 1978-11-23 | Westark Armaturen | Power station pipe cut=off valve - has plate shaft movable freely in housing via bridge and bearing consoles extending downwards |
| CN103104346A (en) * | 2011-11-11 | 2013-05-15 | 空中客车运营有限公司 | Clack valve assembly and assembling method thereof, fuel system and airport having the same |
| CN203770745U (en) * | 2013-09-26 | 2014-08-13 | 芜湖杰诺科技有限公司 | Automatic check valve |
| CN103644333A (en) * | 2013-11-28 | 2014-03-19 | 山东建华阀门制造有限公司 | Swing check valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112648406A (en) * | 2020-12-21 | 2021-04-13 | 浙江宣达环境科技股份有限公司 | Wear-resistant turnover plate reversing valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |
|
| WD01 | Invention patent application deemed withdrawn after publication |