CN107676511A - Low pressure swing check valve is used in one kind ventilation - Google Patents
Low pressure swing check valve is used in one kind ventilation Download PDFInfo
- Publication number
- CN107676511A CN107676511A CN201711041673.1A CN201711041673A CN107676511A CN 107676511 A CN107676511 A CN 107676511A CN 201711041673 A CN201711041673 A CN 201711041673A CN 107676511 A CN107676511 A CN 107676511A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- low pressure
- end cap
- self
- 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
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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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- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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- 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
- F16K24/00—Devices, e.g. valves, for venting or aerating enclosures
- F16K24/04—Devices, e.g. valves, for venting or aerating enclosures for venting only
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a kind of ventilation low pressure swing check valve, including valve body, valve plate is installed on the valve body sealing surface, the valve plate center weld has screw rod, separation pad and swing arm are installed on the screw rod, the screw rod, which is located above swing arm, to be provided with and emits, the valve shaft with swing arm is connected through valve body and by flat key, valve shaft both ends fulcrum is provided with self-lubricating bearing, the valve shaft is provided with thrust ring with self-lubricating bearing outer end, adjusting pad and end cap, the thrust ring is located on the inside of adjusting pad, adjusting pad is located on the inside of end cap, it is bolted between the end cap and self-lubricating bearing, access hole is provided with the valve body.Inventive pipeline pressure only has several KPa, and suitable valves plate thickness is selected by calculating, and ensures that valve can not only be opened with sealing valve but also under the pressure of very little, meets the air-conditioning requirement of low pressure ventilation pipeline.
Description
Technical field
The present invention relates to vent check valve technical field, is specially that low pressure swing check valve is used in a kind of ventilation.
Background technology
Swing check valve rocking bar is with valve body by a root long bearing pin at present, and rocking bar is using long pin shaft as rotary shaft, in valve body
Inside rotate, flap couples flap using short pin shaft as rotary shaft with rocking bar by a short pin shaft, makees relative pendulum with rocking bar
It is dynamic, while flap is bonded with valve body sealing surface and sealed in the presence of pressure medium.
Existing ventilation pressure needed for check-valves is opened is larger.
The content of the invention
It is an object of the invention to provide a kind of ventilation low pressure swing check valve, to solve to carry in above-mentioned background technology
The problem of going out.
To achieve the above object, the present invention provides following technical scheme：Low pressure swing check valve is used in one kind ventilation, including
Valve body, valve plate is installed on the valve body sealing surface, the valve plate center weld has screw rod, separation pad is provided with the screw rod
And swing arm, the screw rod, which is located above swing arm, to be provided with and emits, and the valve shaft is through valve body and is connected by flat key with swing arm, institute
State valve shaft both ends fulcrum and self-lubricating bearing be installed, the valve shaft and self-lubricating bearing outer end be provided with thrust ring, adjusting pad and
End cap, the thrust ring are located on the inside of adjusting pad, and adjusting pad is located on the inside of end cap, passes through between the end cap and self-lubricating bearing
Bolt is fixed, and access hole is provided with the valve body.
Preferably, spring washer and plain washer are disposed between the bolt and end cap.
Preferably, maintenance door is installed, maintenance door before valve body with being provided with sealing gasket on the access hole of the valve body
Preferably, it is bolted between the maintenance door and the access hole of valve body, is set between bolt and maintenance door
There is spring washer.
Preferably, the valve plate is arranged to steel plate weldment.
Compared with prior art, the beneficial effects of the invention are as follows：Inventive pipeline pressure only has several KPa, is selected by calculating
Suitable valves plate thickness is selected, ensures that valve can not only be opened with sealing valve but also under the pressure of very little, meets low pressure ventilation pipeline
Air-conditioning requirement；Valve plate uses steel plate weldment, selects suitable thickness by calculating, is opened under the pressure of very little；Valve body is adopted
With steel plate weldment, suitable thickness is selected by calculating, valve is in light weight, easy for installation；Valve plate opens and closes automatic aligning, sealing
Performance is good.
Brief description of the drawings
Fig. 1 is the front view of the present invention.
Fig. 2 is the side view of the present invention.
In figure：1- simultaneously emits；2- valve shafts；3- self-lubricating bearings；4- thrust rings；5- bolts；6- spring washers；7- plain washers；
8- adjusting pads；9- end caps；10- valve bodies；13- sealing gaskets；14- maintenance doors；15- swing arms；16- valve plates；17- separation pads；18- spiral shells
Bar.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Fig. 1-2 is referred to, the present invention provides a kind of technical scheme：Low pressure swing check valve, including valve are used in one kind ventilation
Body 10, valve plate 16 is installed on the sealing surface of valve body 10, the center weld of valve plate 16 has screw rod 18, separation pad 17 is provided with screw rod 18
With swing arm 15, screw rod 18, which is located at, is provided with and emits 1 above swing arm 15, valve shaft 2 is connected through valve body 10 and by flat key and swing arm 15
Connect, the both ends fulcrum of valve shaft 2 is provided with self-lubricating bearing 3, and valve shaft 2 is provided with thrust ring 4, adjusting pad 8 with the outer end of self-lubricating bearing 3
With end cap 9, thrust ring 4 is located at the inner side of adjusting pad 8, and adjusting pad 8 is located at the inner side of end cap 9, led between end cap 9 and self-lubricating bearing 3
Cross bolt 5 to fix, access hole is provided with valve body 10, spring washer 6 and plain washer are disposed between bolt 5 and end cap 9
7, maintenance door 14 is installed, maintenance door 14 before valve body 10 with being provided with sealing gasket 13, maintenance door 14 on the access hole of valve body 10
It is connected between the access hole of valve body 10 by bolt 5, spring washer 6 is provided between bolt 5 and maintenance door 14, valve plate 16 is set
Steel plate weldment is set to, suitable thickness is selected by calculating, is opened under the pressure of very little；Valve body uses steel plate weldment, leads to
Cross calculating and select suitable thickness, valve is in light weight, easy for installation；Valve plate opens and closes automatic aligning, good seal performance；During shutdown according to
Reach the sealing of valve by the gravity of valve plate 16.
Operation principle：Pipeline pressure only has several KPa, and the suitable thickness of valve plate 16 is selected by calculating, and ensures that valve both can be with
Sealing valve can open under the pressure of very little again, meet the air-conditioning requirement of low pressure ventilation pipeline；Valve plate 16 is welded using steel plate
Part, suitable thickness is selected by calculating, is opened under the pressure of very little；Valve body 10 uses steel plate weldment, is selected by calculating
Suitable thickness, valve is in light weight, easy for installation；Valve plate 16 opens and closes automatic aligning, good seal performance；Valve plate 16 is relied on during shutdown
Gravity reach the sealing of valve.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. low pressure swing check valve, including valve body (10) are used in one kind ventilation, it is characterised in that：On valve body (10) sealing surface
Valve plate (16) is installed, valve plate (16) center weld has screw rod (18), separation pad (17) is provided with the screw rod (18)
With swing arm (15), the screw rod (18), which is located above swing arm (15), to be provided with and emits (1), and the valve shaft (2) passes through valve body (10)
And be connected by flat key with swing arm (15), valve shaft (2) both ends fulcrum is provided with self-lubricating bearing (3), the valve shaft (2) with
Self-lubricating bearing (3) outer end is provided with thrust ring (4), adjusting pad (8) and end cap (9), and the thrust ring (4) is located at adjusting pad
(8) inner side, adjusting pad (8) are located on the inside of end cap (9), solid by bolt (5) between the end cap (9) and self-lubricating bearing (3)
It is fixed, it is provided with access hole on the valve body (10).
2. low pressure swing check valve is used in a kind of ventilation according to claim 1, it is characterised in that：The bolt (5) with
Spring washer (6) and plain washer (7) are disposed between end cap (9).
3. low pressure swing check valve is used in a kind of ventilation according to claim 1, it is characterised in that：The valve body (10)
Maintenance door (14) is installed, maintenance door (14) before valve body (10) with being provided with sealing gasket (13) on access hole.
4. low pressure swing check valve is used in a kind of ventilation according to claim 3, it is characterised in that：The maintenance door (14)
It is connected between the access hole of valve body (10) by bolt (5), spring washer is provided between bolt (5) and maintenance door (14)
(6)。
5. low pressure swing check valve is used in a kind of ventilation according to claim 3, it is characterised in that：The valve plate is arranged to
Steel plate weldment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711041673.1A CN107676511A (en) | 2017-10-31 | 2017-10-31 | Low pressure swing check valve is used in one kind ventilation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711041673.1A CN107676511A (en) | 2017-10-31 | 2017-10-31 | Low pressure swing check valve is used in one kind ventilation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107676511A true CN107676511A (en) | 2018-02-09 |
Family
ID=61142942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711041673.1A Pending CN107676511A (en) | 2017-10-31 | 2017-10-31 | Low pressure swing check valve is used in one kind ventilation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107676511A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9413445U1 (en) * | 1994-08-19 | 1994-10-13 | Meyer Bernhard | Flap valve |
| CN1372090A (en) * | 2002-03-15 | 2002-10-02 | 尚庆英 | Anti-backflow smoke soft cap valve for fume exhauster |
| CN2522695Y (en) * | 2001-12-13 | 2002-11-27 | 张福廷 | Sealing valve of cooking fume exhauster |
| CN2692447Y (en) * | 2002-12-27 | 2005-04-13 | 山东飞达化工科技有限公司 | Roots blower automatic check valve |
| CN203516855U (en) * | 2013-11-01 | 2014-04-02 | 李建华 | Backflow-limiting check valve |
| CN205173582U (en) * | 2015-10-08 | 2016-04-20 | 尹元进 | Open formula dual -purpose check valve for sleeping in immediately soon |
| CN206017906U (en) * | 2016-08-31 | 2017-03-15 | 大通互惠集团有限公司 | Swing check valve |
| CN107166065A (en) * | 2017-07-10 | 2017-09-15 | 苏州华徕光电仪器有限公司 | A kind of power-assisted return type alarm valve |
| CN207599044U (en) * | 2017-10-31 | 2018-07-10 | 南通长江阀门制造有限公司 | A kind of ventilation low pressure swing check valve |
-
2017
- 2017-10-31 CN CN201711041673.1A patent/CN107676511A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9413445U1 (en) * | 1994-08-19 | 1994-10-13 | Meyer Bernhard | Flap valve |
| CN2522695Y (en) * | 2001-12-13 | 2002-11-27 | 张福廷 | Sealing valve of cooking fume exhauster |
| CN1372090A (en) * | 2002-03-15 | 2002-10-02 | 尚庆英 | Anti-backflow smoke soft cap valve for fume exhauster |
| CN2692447Y (en) * | 2002-12-27 | 2005-04-13 | 山东飞达化工科技有限公司 | Roots blower automatic check valve |
| CN203516855U (en) * | 2013-11-01 | 2014-04-02 | 李建华 | Backflow-limiting check valve |
| CN205173582U (en) * | 2015-10-08 | 2016-04-20 | 尹元进 | Open formula dual -purpose check valve for sleeping in immediately soon |
| CN206017906U (en) * | 2016-08-31 | 2017-03-15 | 大通互惠集团有限公司 | Swing check valve |
| CN107166065A (en) * | 2017-07-10 | 2017-09-15 | 苏州华徕光电仪器有限公司 | A kind of power-assisted return type alarm valve |
| CN207599044U (en) * | 2017-10-31 | 2018-07-10 | 南通长江阀门制造有限公司 | A kind of ventilation low pressure swing check valve |
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