CN203189785U - Crush-resistant diaphragm valve - Google Patents
Crush-resistant diaphragm valve Download PDFInfo
- Publication number
- CN203189785U CN203189785U CN 201320189318 CN201320189318U CN203189785U CN 203189785 U CN203189785 U CN 203189785U CN 201320189318 CN201320189318 CN 201320189318 CN 201320189318 U CN201320189318 U CN 201320189318U CN 203189785 U CN203189785 U CN 203189785U
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- China
- Prior art keywords
- valve
- barrier film
- valve body
- spool
- annular convex
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to a crush-resistant diaphragm valve. The crush-resistant diaphragm valve mainly solves the problems that when an existing diaphragm valve is in a high-pressure pipeline, the existing diaphragm valve is poor in pressure-bearing capacity, a diaphragm is severely abraded after long-time use, and the existing diaphragm valve is poor in sealing effect. A valve body (7) is provided with an inlet channel (10) and an outlet channel (11), a protruding portion (9) is arranged between the inlet channel (10) and the outlet channel (11), a strip-shaped groove (91) is formed in the top end of the protruding portion (9), a strip-shaped protruding rib (8) which is matched with the strip-shaped groove (91) is arranged at the bottom end of the diaphragm, and the diaphragm (6) is placed through a channel on the upper side of the valve body (7) to be in cooperation with the protruding portion (9) so as to form connection or disconnection of the diaphragm valve. The crush-resistant diaphragm valve has the advantages of being good in stability, good in bearing capacity and long in service life.
Description
Technical field
The utility model relates to a kind of stop valve, refers in particular to a kind of resistance to compression membrane valve.
Background technique
Membrane valve is a kind of stop valve of special shape, and its open-shut device is a barrier film made from soft material, and it separates body cavity and valve gap inner chamber.The characteristics of membrane valve are as follows: 1. with barrier film lower body inner chamber and upper valve cap inner chamber are separated, make to be positioned at parts such as the valve rod put on the barrier film, flap and not to be subjected to dielectric corrosion, and can not produce medium and leak outside, saved filler and sealing pair structure.2. adopt flexible barrier materials such as rubber or plastics to make barrier film, sealing is better.Because barrier film is easily damaged parts, should looks operating mode and dielectric property and regularly replace.Limited by diaphragm material, membrane valve is applicable to the occasion that low pressure and temperature are not high.
The diversity of lining material can be selected to various media, has good anti-corrosion property.5. barrier film is replaceable, and maintenance cost is low.
It is inconsistent or separate to come the open and close of control valve that existing membrane valve is generally the boss of barrier film and valve body bottom, in this process, in valve body during the conducting high-pressure medium, bearing capacity mainly concentrates on valve interior wall conflict frictional force and the spool pressure, compression capability is poor, and in the course of time, cause diaphragm wear even perforation to reveal easily.
The model utility content
In order to overcome deficiency and the defective in the background technique, the utility model provides a kind of resistance to compression membrane valve, exists bearing capacity poor when mainly the existing membrane valve of solution is in pressure duct, and barrier film is serious wear after long-term the use, and the problem of sealing effect difference.
The technical solution of the utility model is: a kind of resistance to compression membrane valve, comprise valve body, valve gap, handwheel, valve rod and spool, be provided with the barrier film with valve body and spool separation between described valve body and the valve gap, described valve body is provided with inlet passage and outlet passage, be provided with a lug boss between described inlet passage and the outlet passage, described lug boss top is provided with bar-shaped trough, described barrier film bottom is provided with the strip convex tendon that matches with described bar-shaped trough, and described barrier film is inserted from the passage of valve body upside and cooperated the conducting that constitutes membrane valve with lug boss and close.
The lower wall of described strip convex tendon is circular-arc projection, the circular-arc transition slot of the bottom surface of described bar-shaped trough for matching with described strip convex tendon.
Corresponding spool one side is provided with annular convex shoulder on the described valve body, and described annular convex shoulder cooperates with diaphragm seal.
Fit and be provided with annular convex rib in the outer ring of the corresponding annular convex shoulder of described barrier film downside, described annular convex rib and described annular convex shoulder are sealed and matched.
Described barrier film and spool are bolted to connection.
Described valve rod is in transmission connection by screw thread and valve gap, described valve rod and the clamping of spool phase.
The beneficial effects of the utility model: owing to take such scheme, resistance to compression membrane valve of the present utility model, be provided with a lug boss in the valve body, described lug boss top is provided with bar-shaped trough, and the strip convex tendon that is provided with of cooperation barrier film, described barrier film is inserted when cooperating the pass closed procedure that constitutes membrane valve with lug boss from the passage of valve body upside, it is spacing that the strip convex tendon imports bar-shaped trough, bidirectionally limited mode by spool and bar-shaped trough, pressure with high-pressure medium decomposes timely, effectively raise the bearing capacity of membrane valve, have good stability, bearing capacity reaches the characteristics of long service life by force.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the partial enlarged drawing at A place among Fig. 1.
Fig. 3 is the partial enlarged drawing at B place among Fig. 1.
Among the figure, 1-handwheel, 2-valve rod, 3-valve gap, 4-spool, 5-bolt, the 6-barrier film, 61-annular convex rib, 7-valve body, 71-annular convex shoulder, 8-strip convex tendon, the circular-arc projection of 82-, the 9-lug boss, 91-bar-shaped trough, the circular-arc transition slot of 92-, 10-inlet passage, 11-outlet passage.
Embodiment
At accompanying drawing embodiment of the present utility model is described further below:
Shown in figure, this resistance to compression membrane valve, comprise valve body 7, valve gap 3, handwheel 1, valve rod 2 and spool 4, be provided with the barrier film 6 that valve body 7 and spool 4 are separated between described valve body 7 and the valve gap 3, described valve body 7 is provided with inlet passage 10 and outlet passage 11, be provided with a lug boss 9 between described inlet passage 10 and the outlet passage 11, described lug boss 9 tops are provided with bar-shaped trough 91, described barrier film bottom is provided with the strip convex tendon 8 that matches with described bar-shaped trough 91, and described barrier film 6 is inserted from the passage of valve body 7 upsides and cooperated the conducting that constitutes membrane valve with lug boss 9 and close.Be provided with a lug boss in the valve body, described lug boss top is provided with bar-shaped trough, and the strip convex tendon that is provided with of cooperation barrier film, described barrier film is inserted when cooperating the pass closed procedure that constitutes membrane valve with lug boss from the passage of valve body upside, it is spacing that the strip convex tendon imports bar-shaped trough, and by the bidirectionally limited mode of spool and bar-shaped trough, the pressure with high-pressure medium decomposes timely, effectively raise the bearing capacity of membrane valve, have the advantages that good stability, bearing capacity reach long service life by force.
The lower wall of described strip convex tendon 8 is circular-arc protruding 82, the circular-arc transition slot 92 of the bottom surface of described bar-shaped trough 91 for matching with described strip convex tendon 8.After barrier film was subjected to spool pressure-bearing stress deformation, the strip convex tendon after the distortion still can contact with the bar-shaped trough arc transition, effectively improves bearing capacity and sealing.
Corresponding spool 4 one sides are provided with annular convex shoulder 71 on the described valve body 7, and described annular convex shoulder 71 is sealed and matched with barrier film 61.By bolted valve gap and the valve body compression fit to barrier film, annular convex shoulder plays the counteresteer effect to medium in the valve body, prevents that the barrier film pressurized is tired and causes revealing, and effectively strengthens sealing, prevents the spool corrosion.
Fit and be provided with annular convex rib 61 in the outer ring of the corresponding annular convex shoulder 71 of described barrier film 6 downsides, described annular convex rib 61 is sealed and matched with described annular convex shoulder 71.By bolted valve gap and the valve body compression fit to barrier film, compressing mutually of annular convex shoulder and annular convex rib played the counteresteer effect to medium in the valve body, prevents that effectively medium from flowing in the valve gap, corrosion spool and valve rod have improved sealing, corrosion resistance and stability.
Described barrier film 6 is fixedlyed connected by bolt 5 with spool 4.When handwheel control spool up moved, barrier film is motion together thereupon also, and control is accurate, the effect of long service life.
Described valve rod 2 is in transmission connection by screw thread and valve gap 3, described valve rod 2 and spool 4 phase clampings, and transmission is stable, the effect of easy accessibility.
Embodiment should not be considered as the restriction to model utility, but any improvement of doing based on spirit of the present utility model, all should be within protection domain of the present utility model.
Claims (6)
1. resistance to compression membrane valve, comprise valve body (7), valve gap (3), handwheel (1), valve rod (2) and spool (4), be provided with the barrier film (6) that valve body (7) and spool (4) are separated between described valve body (7) and the valve gap (3), it is characterized in that: described valve body (7) is provided with inlet passage (10) and outlet passage (11), be provided with a lug boss (9) between described inlet passage (10) and the outlet passage (11), described lug boss (9) top is provided with bar-shaped trough (91), described barrier film bottom is provided with the strip convex tendon (8) that matches with described bar-shaped trough (91), and described barrier film (6) is inserted from the passage of valve body (7) upside and cooperated the conducting that constitutes membrane valve with lug boss (9) and close.
2. resistance to compression membrane valve according to claim 1, it is characterized in that: the lower wall of described strip convex tendon (8) is circular-arc projection (82), the circular-arc transition slot (92) of the bottom surface of described bar-shaped trough (91) for matching with described strip convex tendon (8).
3. resistance to compression membrane valve according to claim 1 is characterized in that: described valve body (7) is gone up corresponding spool (4) one sides and is provided with annular convex shoulder (71), and described annular convex shoulder (71) is sealed and matched with barrier film (61).
4. resistance to compression membrane valve according to claim 3 is characterized in that: fit and be provided with annular convex rib (61) in the outer ring of the corresponding annular convex shoulder of described barrier film (6) downside (71), described annular convex rib (61) is sealed and matched with described annular convex shoulder (71).
5. according to each described resistance to compression membrane valve of claim 1-4, it is characterized in that: described barrier film (6) is fixedlyed connected by bolt (5) with spool (4).
6. according to each described resistance to compression membrane valve of claim 1-4, it is characterized in that: described valve rod (2) is in transmission connection by screw thread and valve gap (3), described valve rod (2) and spool (4) phase clamping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320189318 CN203189785U (en) | 2013-04-16 | 2013-04-16 | Crush-resistant diaphragm valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320189318 CN203189785U (en) | 2013-04-16 | 2013-04-16 | Crush-resistant diaphragm valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203189785U true CN203189785U (en) | 2013-09-11 |
Family
ID=49106646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320189318 Expired - Fee Related CN203189785U (en) | 2013-04-16 | 2013-04-16 | Crush-resistant diaphragm valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203189785U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523769A (en) * | 2016-12-12 | 2017-03-22 | 彭坤海 | Solenoid valve diaphragm and low-water-head hydrodynamic solenoid valve |
| CN110185816A (en) * | 2019-06-28 | 2019-08-30 | 上海阀门五厂有限公司 | Heavy caliber nuclear leve M type through type electric diaphragm valve |
-
2013
- 2013-04-16 CN CN 201320189318 patent/CN203189785U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523769A (en) * | 2016-12-12 | 2017-03-22 | 彭坤海 | Solenoid valve diaphragm and low-water-head hydrodynamic solenoid valve |
| CN106523769B (en) * | 2016-12-12 | 2019-07-23 | 彭坤海 | Electromagnetism valve diaphragm and low water head hydrodynamic(al) solenoid valve |
| CN110185816A (en) * | 2019-06-28 | 2019-08-30 | 上海阀门五厂有限公司 | Heavy caliber nuclear leve M type through type electric diaphragm valve |
| CN110185816B (en) * | 2019-06-28 | 2024-05-14 | 上海阀门五厂有限公司 | Large-caliber nuclear grade M-shaped straight-through type electric diaphragm 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 |
Granted publication date: 20130911 Termination date: 20160416 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |