CN204533674U - A kind of hard sealing inclined seat delayed on-off non-return valve - Google Patents
A kind of hard sealing inclined seat delayed on-off non-return valve Download PDFInfo
- Publication number
- CN204533674U CN204533674U CN201520209897.9U CN201520209897U CN204533674U CN 204533674 U CN204533674 U CN 204533674U CN 201520209897 U CN201520209897 U CN 201520209897U CN 204533674 U CN204533674 U CN 204533674U
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- Prior art keywords
- valve
- connecting plate
- rocking arm
- large rocking
- oil cylinder
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Abstract
The utility model discloses a kind of hard sealing inclined seat delayed on-off non-return valve, comprise large rocking arm, valve body, stuffing box gland, valve plate, oil cylinder mechanism, the first connecting plate, the second connecting plate, bearing dowel, connecting plate axle sleeve, balancing weight and seal ring; Large rocking arm and oil cylinder are all fixed between the first connecting plate and the second connecting plate, and oil cylinder is positioned at one end of large rocking arm; The two ends of valve plate are all fixed with valve shaft, and the valve shaft at valve plate two ends is flexibly connected with valve body, one end of one of them valve shaft is flexibly connected with large rocking arm, and stuffing box gland coordinates with the end face of large rocking arm and the second connecting plate; Described oil cylinder mechanism is connected with large rocking-arm driving.Valve mechanism is reliable, have slow open and close function, can regulate the keying speed of valve plate between the angle of 20 °-90 °.Valve plate opens that required pressure is little, and valve operates steadily, smooth, shockproof, noise free, decreases medium little to the impact force of valve and valve seat and the water hammer produced pipeline, loss of head, sealing reliably, long service life.
Description
Technical field
The utility model relates to a kind of hard sealing inclined seat delayed on-off non-return valve.
Background technique
Valve is the controlling component in fluid delivery system, has cut-off, adjustment, water conservancy diversion, prevents the functions such as adverse current, voltage stabilizing, shunting or overflow pressure relief.Safety check refers to the valve relying on medium flowing itself and automatic open and close flap, and its Main Function prevents medium from flowing backwards.Existing check valve body and valve plate adopt soft seal (such as rubber seal) mostly, and when frictional force is larger, sealing easily damages and lost efficacy, thus substantially reduces the working life of valve.Although also there is the safety check adopting hard sealing, the water hammer etc. that when opening, large, the pipeline of the impact force of large, the medium of pressure to valve and valve seat easily produces causes safety check to shorten working life.
Model utility content
The purpose of this utility model be solve that pressure when existing safety check is opened is large, the impact force of medium to valve and valve seat is large, pipeline easily produces water hammer, problem check valve seal easily being damaged and lost efficacy and then the working life of safety check is shortened.
The technical solution adopted in the utility model is: a kind of hard sealing inclined seat delayed on-off non-return valve, comprises large rocking arm 3, valve body 4, stuffing box gland 5, valve plate 8, oil cylinder mechanism 13, first connecting plate 14, second connecting plate 15, bearing dowel 16, connecting plate axle sleeve 18, balancing weight 19 and seal ring 20;
Large rocking arm 3 and oil cylinder 13 are all fixed between the first connecting plate 14 and the second connecting plate 15, and oil cylinder 13 is positioned at one end of large rocking arm 3, the other end of large rocking arm 3 is fixed with weight linear meter, and balancing weight 19 is detachable to be fixed on weight linear meter;
The two ends of valve plate 8 are all fixed with valve shaft, the valve shaft at valve plate 8 two ends is flexibly connected with valve body 4, one end of one of them valve shaft is flexibly connected with large rocking arm 3, and stuffing box gland 5 is positioned at and coordinates with the end face of large rocking arm 3 and the second connecting plate 15 near the side of the second connecting plate 15;
Oil cylinder mechanism 13 and large rocking arm 3 are in transmission connection.
As further improvement of the utility model, oil cylinder mechanism 13 comprises modulating valve, piston, piston rod and movable block, and piston and movable block are all connected with piston rod, the shape of large rocking arm 3 and movable block suitable make large rocking arm 3 can with movable block transmission.
As further improvement of the utility model, oil cylinder mechanism 13 also comprises bearing and bearing dowel, and bearing is connected with movable block by bearing dowel.
As further improvement of the utility model, the inner both sides of valve body 4 are fixed with valve body axle sleeve, to be flexibly connected with valve body axle sleeve by valve shaft and to realize being flexibly connected of valve plate 8 and valve body 4, be fixed with between the first connecting plate 14 and the second connecting plate 15 apart from bar 2 and connecting plate axle sleeve 18.
As further improvement of the utility model, valve shaft comprises major axis 7 and minor axis 10, and valve body axle sleeve comprises major axis cover 6 and short sleeve 11, major axis 7 and major axis overlap 6 to be flexibly connected, minor axis 10 is flexibly connected with short sleeve 11, major axis 7 is flexibly connected with large rocking arm 3.
As further improvement of the utility model, valve shaft is fixedly connected on valve body 4 by taper pin 9, the side that valve body 4 and minor axis 10 connect is fixed with the rear end cover 12 that one end contacts with short sleeve 11, is equipped with seal ring 20 in stuffing box gland 5 and in rear end cover 12.
As further improvement of the utility model, the first connecting plate 14 is provided with aperture direction board 1, and aperture direction board 1 is provided with aperture pointer 17, and aperture pointer 17 is flexibly connected with the side of large rocking arm 3 away from valve shaft.
Oil cylinder mechanism 13 in the utility model have oil cylinder in prior art structure, comprise piston rod, piston, modulating valve etc., preferably adopting with the design of valve is oil cylinder that is separate, standard interface, and strict guarantee oil cylinder interchangeability is all more convenient in production, installation, maintenance, replacing, transportation process like this.Valve plate global formation in the utility model, to be connected with valve seat by valve shaft and to make valve plate be integral hanging formula valve plate, operate steadily like this, shockproof, noise free.Preferably adopt inclined valve stand structure, valve plate and valve seat to be preferably formed as conical surface seal in the utility model, seal more reliable, long service life like this.
The beneficial effects of the utility model are: valve mechanism is reliable, have slow open and close function, can regulate the keying speed of valve plate between the angle of 20 °-90 °.Valve plate opens that required pressure is little, and valve operates steadily, smooth, shockproof, noise free, decreases medium little to the impact force of valve and valve seat and the water hammer produced pipeline, loss of head, sealing reliably, long service life.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is the sectional view of the plan view of Fig. 1.
Shown in figure: 1, aperture direction board, 2, apart from bar, 3, large rocking arm, 4, valve body, 5, stuffing box gland, 6, major axis cover, 7, major axis, 8, valve plate, 9, taper pin, 10, minor axis, 11, short sleeve, 12, rear end cover, 13, oil cylinder, the 14, first connecting plate, 15, the second connecting plate, 16, bearing dowel, 17, aperture pointer, 18, connecting plate axle sleeve, 19, balancing weight, 20, seal ring.
Embodiment
Below the utility model is described further.
Embodiment 1: a kind of hard sealing inclined seat delayed on-off non-return valve, comprises large rocking arm 3, valve body 4, stuffing box gland 5, valve plate 8, oil cylinder mechanism 13, first connecting plate 14, second connecting plate 15, bearing dowel 16, connecting plate axle sleeve 18, balancing weight 19 and seal ring 20; Large rocking arm 3 and oil cylinder 13 are all fixed between the first connecting plate 14 and the second connecting plate 15, and oil cylinder 13 is positioned at one end of large rocking arm 3, the other end of large rocking arm 3 is fixed with weight linear meter, and balancing weight 19 is detachable to be fixed on weight linear meter; The two ends of valve plate 8 are all fixed with valve shaft, the valve shaft at valve plate 8 two ends is flexibly connected with valve body 4, one end of one of them valve shaft is flexibly connected with large rocking arm 3, and stuffing box gland 5 is positioned at and coordinates with the end face of large rocking arm 3 and the second connecting plate 15 near the side of the second connecting plate 15; Oil cylinder mechanism 13 and large rocking arm 3 are in transmission connection.
Embodiment 2, are with the difference of embodiment 1: oil cylinder mechanism 13 comprises modulating valve, piston, piston rod and movable block, and piston and movable block are all connected with piston rod, the shape of large rocking arm 3 and movable block suitable make large rocking arm 3 can with movable block transmission.Embodiment 2, the concrete set-up mode providing a kind of oil cylinder mechanism 13, contact drive movable block to move thus the transmission achieving large rocking arm 3 and movable block when large rocking arm 3 turns to certain position with movable block.
Embodiment 3, are with the difference of embodiment 2: oil cylinder mechanism 13 also comprises bearing and bearing dowel, and bearing is connected with movable block by bearing dowel.In the present embodiment, bearing touch when large rocking arm 3 turns to certain position and on movable block drives movable block to move thus achieves the transmission of large rocking arm 3 and movable block, and this setup is simple, reliable, shock resistance, more stable compared to embodiment 2.
Embodiment 4, be with the difference of embodiment 3: the inner both sides of valve body 4 are fixed with valve body axle sleeve, to be flexibly connected with valve body axle sleeve by valve shaft and to realize being flexibly connected of valve plate 8 and valve body 4, be fixed with between the first connecting plate 14 and the second connecting plate 15 apart from bar 2 and connecting plate axle sleeve 18.In the present embodiment, apart from bar 2 be used for distance between guarantee first connecting plate 14 from the second connecting plate 15 (or according to different situations select different apart from bar 2 thus the distance that can change when mounted between the first connecting plate 14 and the second connecting plate 15).
Embodiment 5, are with the difference of embodiment 4: valve shaft comprises major axis 7 and minor axis 10, and valve body axle sleeve comprises major axis cover 6 and short sleeve 11, major axis 7 and major axis overlap 6 to be flexibly connected, minor axis 10 is flexibly connected with short sleeve 11, major axis 7 is flexibly connected with large rocking arm 3.After adopting the present embodiment, valve runs more stable.
Embodiment 6, are with the difference of embodiment 5: valve shaft is fixedly connected on valve body 4 by taper pin 9, the side that valve body 4 and minor axis 10 connect is fixed with the rear end cover 12 that one end contacts with short sleeve 11, is equipped with seal ring 20 in stuffing box gland 5 and in rear end cover 12.After adopting the present embodiment, ensure valve body sealability everywhere.
Embodiment 7, are with the difference of embodiment 1 to 6: the first connecting plate 14 is provided with aperture direction board 1, and aperture direction board 1 is provided with aperture pointer 17, and aperture pointer 17 is flexibly connected with the side of large rocking arm 3 away from valve shaft.Arrange aperture direction board 1 and aperture pointer 17, the open/close states of valve plate is intuitively visual, conveniently controls opening-closing process.
Before the utility model uses, adjustment balancing weight adjusts in the position of large rocking arm and/or by the modulating valve adjust flux of oil cylinder mechanism 13 moment that large rocking arm produces, and keying speed that is concrete, valve plate can be controlled in the position of large rocking arm and/or by the modulating valve adjust flux of oil cylinder mechanism 13 by adjustment balancing weight.
The utility model comprises the working procedure of Open valve and closure valve when using, (wherein convenient in order to describe, the top of oil cylinder refers to oil cylinder one end away from large rocking arm 3, and the bottom of oil cylinder refers to oil cylinder one end near large rocking arm 3) specific as follows:
Open valve process: start pump, under entrance point pressure and medium promote, valve plate 8 moves and then drives valve shaft to move, valve shaft motion drives large rocking arm 3 to move, by the piston rod movement in large rocking-arm driving drive oil cylinder mechanism 13, piston rod movement, piston is moved to the top orientation of oil cylinder, because valve plate needs to overcome moment that balancing weight 19 produced by large rocking arm so valve plate is slowly opened in movement process, when the piston of oil cylinder mechanism 13 runs to the top of oil cylinder completely, valve plate 8 is in full-gear.
Closure valve process: close pump; entrance point medium and outlet end produce pressure reduction; make piston to direction, the bottom motion of oil cylinder to oil cylinder charged pressure oil and then drive piston rod movement; the power on large rocking arm 3 is acted on so the regulating valve flow controlling oil cylinder also just controls the speed of valve plate closedown because valve plate 8 will overcome oil cylinder; when piston runs to the bottom of oil cylinder completely, valve plate is in full off state, thus to pump play a protective role (unexpected or urgent close pump time process identical with closure valve process).
According to the difference of adopted embodiment, the process of Open valve or closure valve can change accordingly, and such as valve shaft comprises major axis 7 and minor axis 10, and valve plate 8 moves and drives major axis 7 and minor axis 10 to move, and major axis 7 drives large rocking arm 3 to move; Such as oil cylinder mechanism 13 comprises modulating valve, piston, piston rod and movable block, contacts to promote movable block and move after large rocking arm 3 moves to certain position with movable block, and movable block motion drives piston rod movement to make piston to the top of oil cylinder; Such as oil cylinder mechanism 13 comprises modulating valve, piston, piston rod, movable block, bearing and bearing dowel, bearing is connected with movable block by bearing dowel, with the bearing touch on movable block movable block is moved after large rocking arm 3 moves to certain position.
Those skilled in the art should know; protection scheme of the present utility model is not limited only to the above embodiments; various permutation and combination and conversion can also be carried out on the basis of above-described embodiment; under the prerequisite without prejudice to the utility model spirit, the various conversion that the utility model carries out all are dropped in protection domain of the present utility model.
Claims (7)
1. a hard sealing inclined seat delayed on-off non-return valve, is characterized in that comprising large rocking arm (3), valve body (4), stuffing box gland (5), valve plate (8), oil cylinder mechanism (13), the first connecting plate (14), the second connecting plate (15), bearing dowel (16), connecting plate axle sleeve (18), balancing weight (19) and seal ring (20);
Large rocking arm (3) and oil cylinder (13) are all fixed between the first connecting plate (14) and the second connecting plate (15), oil cylinder (13) is positioned at one end of large rocking arm (3), the other end of large rocking arm (3) is fixed with weight linear meter, and balancing weight (19) is detachable to be fixed on weight linear meter;
The two ends of valve plate (8) are all fixed with valve shaft, the valve shaft at valve plate (8) two ends is flexibly connected with valve body (4), one end of one of them valve shaft is flexibly connected with large rocking arm (3), and stuffing box gland (5) is positioned at and coordinates with the end face of large rocking arm (3) and the second connecting plate (15) near the side of the second connecting plate (15);
Described oil cylinder mechanism (13) and large rocking arm (3) are in transmission connection.
2. hard sealing inclined seat delayed on-off non-return valve according to claim 1, it is characterized in that described oil cylinder mechanism (13) comprises modulating valve, piston, piston rod and movable block, described piston and movable block are all connected with piston rod, the shape of described large rocking arm (3) and movable block suitable make large rocking arm (3) can with movable block transmission.
3. hard sealing inclined seat delayed on-off non-return valve according to claim 2, it is characterized in that described oil cylinder mechanism (13) also comprises bearing and bearing dowel, described bearing is connected with movable block by bearing dowel.
4. hard sealing inclined seat delayed on-off non-return valve according to claim 3, it is characterized in that described valve body (4) inner both sides are fixed with valve body axle sleeve, described flexible connection with valve body axle sleeve by valve shaft realizes being flexibly connected of valve plate (8) and valve body (4), is fixed with apart from bar (2) and connecting plate axle sleeve (18) between described first connecting plate (14) and the second connecting plate (15).
5. hard sealing inclined seat delayed on-off non-return valve according to claim 4, it is characterized in that described valve shaft comprises major axis (7) and minor axis (10), described valve body axle sleeve comprises major axis cover (6) and short sleeve (11), described major axis (7) is flexibly connected with major axis cover (6), described minor axis (10) is flexibly connected with short sleeve (11), and described major axis (7) is flexibly connected with large rocking arm (3).
6. hard sealing inclined seat delayed on-off non-return valve according to claim 5, it is characterized in that valve shaft is fixedly connected on valve body (4) by taper pin (9), described, the side that valve body (4) and minor axis (10) connect is fixed with the rear end cover (12) that one end contacts with short sleeve (11), is equipped with seal ring (20) in described stuffing box gland (5) and in rear end cover (12).
7. the hard sealing inclined seat delayed on-off non-return valve according to claim 1 to 6 any one, it is characterized in that described first connecting plate (14) is provided with aperture direction board (1), described aperture direction board (1) is provided with aperture pointer (17), and described aperture pointer (17) is flexibly connected with the side of large rocking arm (3) away from valve shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520209897.9U CN204533674U (en) | 2015-04-09 | 2015-04-09 | A kind of hard sealing inclined seat delayed on-off non-return valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520209897.9U CN204533674U (en) | 2015-04-09 | 2015-04-09 | A kind of hard sealing inclined seat delayed on-off non-return valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204533674U true CN204533674U (en) | 2015-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520209897.9U Expired - Fee Related CN204533674U (en) | 2015-04-09 | 2015-04-09 | A kind of hard sealing inclined seat delayed on-off non-return valve |
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| Country | Link |
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| CN (1) | CN204533674U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776253A (en) * | 2015-04-09 | 2015-07-15 | 英诺威阀业有限公司 | Hard sealing inclined seat slow opening and slow closing check valve |
-
2015
- 2015-04-09 CN CN201520209897.9U patent/CN204533674U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776253A (en) * | 2015-04-09 | 2015-07-15 | 英诺威阀业有限公司 | Hard sealing inclined seat slow opening and slow closing check 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: 20150805 Termination date: 20170409 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |