CN204201240U - A kind of piston type pneumatic control sentinel valve - Google Patents
A kind of piston type pneumatic control sentinel valve Download PDFInfo
- Publication number
- CN204201240U CN204201240U CN201420583417.0U CN201420583417U CN204201240U CN 204201240 U CN204201240 U CN 204201240U CN 201420583417 U CN201420583417 U CN 201420583417U CN 204201240 U CN204201240 U CN 204201240U
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- Prior art keywords
- ring
- shaft seal
- seal seat
- joint
- piston
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Abstract
The utility model discloses a kind of piston type pneumatic control sentinel valve, comprise pipe flange, spring, spring seat, the first shaft seal seat, the first "O"-ring, the second "O"-ring, the first grommet, the second shaft seal seat, the 3rd "O"-ring, the first seal ring, cylinder block, cylinder equilong threaded stud, nut, spring washer, the 7th "O"-ring, piston, positioning checkpoint and left valve base; Described pipe flange is arranged at sentinel valve two ends; Described spring is inserted on the spring seat that is connected with piston rod left end; Described first "O"-ring and the second "O"-ring are arranged on left valve base and the first shaft seal seat joint; The first grommet is provided with in the middle part of described first shaft seal seat and piston rod right-hand member outer rim joint; This piston type pneumatic control sentinel valve, adopts stainless steel metal slide block to replace diaphragm, substantially increases the working life of valve; In addition, pneumatic control, Safety performance is improved.
Description
Technical field
The utility model relates to a kind of Pneumatic impulse valve, especially a kind of piston type pneumatic control sentinel valve.
Background technique
Traditional piston type pulse valve is made up of pilot section, valve gap, diaphragm, O shape circle, buffering ring, housing, spool, pilot section connects valve gap, valve gap encloses with diaphragm, O shape, housing is connected, buffering ring is stuck in housing, spool is movable part, is all the foldings of rising, contracting to realize control valve controlling diaphragm; This sentinel valve due to the pressure difference between diaphragm upper chamber and lower exhaust passage larger, cause diaphragm applied force uneven, the easy fatigue damage of diaphragm, life-span declines, the cost performance of sentinel valve declines, and in addition, general diaphragm rubber does, meeting natural aging, the life-span of valve also can be affected; Not only there is obvious defect in existing sentinel valve, but the Safety performance that traditional electrical pulse controls also can reduce on service life.
Prior art can not meet the needs of people, and for making up prior art deficiency, the utility model aims to provide a kind of piston type pneumatic control sentinel valve.
For achieving the above object, the utility model is by the following technical solutions: a kind of piston type pneumatic control sentinel valve, comprise pipe flange, spring, spring seat, first shaft seal seat, first "O"-ring, second "O"-ring, first grommet, second shaft seal seat, 3rd "O"-ring, first seal ring, cylinder block, cylinder, second seal ring, 4th "O"-ring, circlip for shaft, piston rod, right valve base, 5th "O"-ring, sealing gasket, seal gasket press cover, 6th "O"-ring, bolt, equilong threaded stud, nut, spring washer, 7th "O"-ring, piston, positioning checkpoint and left valve base, described pipe flange is arranged at sentinel valve two ends, described spring is inserted on the spring seat that is connected with piston rod left end, described first "O"-ring and the second "O"-ring are arranged on left valve base and the first shaft seal seat joint, the first grommet is provided with in the middle part of described first shaft seal seat and piston rod right-hand member outer rim joint, described first shaft seal seat and the second shaft seal seat joint are provided with the 3rd "O"-ring, described second shaft seal seat is arranged at the first shaft seal seat right-hand member, and is provided with the first seal ring in the middle part of piston rod right-hand member outer rim joint, described cylinder block is arranged between the second shaft seal seat and cylinder, and is connected with the second shaft seal seat and cylinder, described cylinder left end is fixedly connected with the second shaft seal seat, described second seal ring is arranged between cylinder and piston, described 4th "O"-ring is arranged at piston and piston rod joint, described circlip for shaft is arranged at piston and two ends, piston rod joint, described 5th "O"-ring is arranged between sealing gasket and seal gasket press cover, described seal gasket press cover left side and right-hand part are bolted to connection, and are provided with the 6th "O"-ring in joint, after described right valve base is connected by equilong threaded stud with left valve base, then the fastening nuts through equilong threaded stud two ends connects, described spring washer is sheathed on equilong threaded stud, and is arranged between nut and left valve base, described 7th "O"-ring is arranged on cylinder block and cylinder joint, described positioning checkpoint is arranged at seal gasket press cover outer end.
Further, described right valve base is same with shaft seal seat joint is provided with the first "O"-ring and the second "O"-ring.
Compared with prior art, the beneficial effects of the utility model are: this piston type pneumatic control sentinel valve, adopt stainless steel metal slide block to replace diaphragm, substantially increase the working life of valve; All metalworks all adopt corrosion-resistant stainless steel, compare with other valves, need not consider the corrosivity of medium to valve parts, the applicable multiple industry of a kind of valve and medium; The life-span of stainless steel parts will be longer than rubber-like diaphragm greatly, and the life-span of valve is also extended greatly; , away from medium, there is cushion in pneumatic control source between metal parts in valve, and valve and conveyance conduit, almost without electrical spark, substantially increase the Security of valve; Compact overall structure, applied widely, working life is longer, and Security is high, is easy to promote the use of.
Model utility content
Accompanying drawing explanation
Fig. 1 is the overall cross-sectional view of the utility model;
Wherein: 1, pipe flange, 2, spring, 3, spring seat, 4, first shaft seal seat, 5, first "O"-ring, 6, second "O"-ring, 7, first grommet, 8, second shaft seal seat, 9, 3rd "O"-ring, 10, first seal ring, 11, cylinder block, 12, cylinder, 13, second seal ring, 14, 4th "O"-ring, 15, circlip for shaft, 16, piston rod, 17, right valve base, 18, 5th "O"-ring, 19, sealing gasket, 20, seal gasket press cover, 21, 6th "O"-ring, 22, bolt, 23, equilong threaded stud, 24, nut, 25, spring washer, 26, 7th "O"-ring, 27, piston, 28, positioning checkpoint, 29, left valve base.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, a kind of piston type pneumatic control sentinel valve, comprise pipe flange 1, spring 2, spring seat 3, first shaft seal seat 4, first "O"-ring 5, second "O"-ring 6, first grommet 7, second shaft seal seat 8, 3rd "O"-ring 9, first seal ring 10, cylinder block 11, cylinder 12, second seal ring 13, 4th "O"-ring 14, circlip for shaft 15, piston rod 16, right valve base 17, 5th "O"-ring 18, sealing gasket 19, seal gasket press cover 20, 6th "O"-ring 21, bolt 22, equilong threaded stud 23, nut 24, spring washer 25, 7th "O"-ring 26, piston 27, positioning checkpoint 28 and left valve base 29, described pipe flange 1 is arranged at sentinel valve two ends, described spring 2 is inserted on the spring seat 3 that is connected with piston rod 16 left end, described first "O"-ring 5 and the second "O"-ring 6 are arranged on left valve base 29 and the first shaft seal seat 4 joint, the first grommet 7 is provided with in the middle part of described first shaft seal seat 4 and piston rod 16 right-hand member outer rim joint, described first shaft seal seat 4 and the second shaft seal seat 8 joint are provided with the 3rd "O"-ring 9, described second shaft seal seat 8 is arranged at the first shaft seal seat 4 right-hand member, and is provided with the first seal ring 10 in the middle part of piston rod 16 right-hand member outer rim joint, described cylinder block 11 is arranged between the second shaft seal seat 8 and cylinder 12, and is connected with the second shaft seal seat 8 and cylinder 12, described cylinder 12 left end is fixedly connected with the second shaft seal seat 8, described second seal ring 13 is arranged between cylinder 12 and piston 27, described 4th "O"-ring 14 is arranged at piston 27 and piston rod 16 joint, described circlip for shaft 15 is arranged at piston 27 and two ends, piston rod 16 joint, described 5th "O"-ring 18 is arranged between sealing gasket 19 and seal gasket press cover 20, described seal gasket press cover 20 left side is fixedly connected with by bolt 22 with right-hand part, and is provided with the 6th "O"-ring 21 in joint, after described right valve base 17 is connected by equilong threaded stud 23 with left valve base 29, then the nut 24 through equilong threaded stud 23 two ends is fastenedly connected, described spring washer 25 is sheathed on equilong threaded stud 23, and is arranged between nut 24 and left valve base 29, described 7th "O"-ring 26 is arranged on cylinder block 11 and cylinder 12 joint, described positioning checkpoint 28 is arranged at seal gasket press cover 20 outer end.
Further, described right valve base 17 is same with shaft seal seat joint is provided with the first "O"-ring and the second "O"-ring.
The principle of work and power of the present utility model is: when controlling source of the gas and entering the "ON" mouth of pipe, chamber A pressurized, and in promotion figure, piston slides left, and drive piston rod to slide to left side together, now, the closing face of piston rod and sealing gasket is opened, and medium enters right flange end; On the contrary, when controlling source of the gas and entering the "Off" mouth of pipe, chamber B pressurized, promotes piston, and drives piston rod to slide to right side together, is closed by the surface of contact of piston rod and sealing gasket, makes valve closing.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any reference character in claim should be considered as the claim involved by limiting.
The above; be only preferred embodiment of the present utility model; not in order to limit the utility model, every above embodiment is done according to technical spirit of the present utility model any trickle amendment, equivalently replace and improve, within the protection domain that all should be included in technical solutions of the utility model.
Claims (2)
1. a piston type pneumatic control sentinel valve, comprise pipe flange (1), spring (2), spring seat (3), first shaft seal seat (4), first "O"-ring (5), second "O"-ring (6), first grommet (7), second shaft seal seat (8), 3rd "O"-ring (9), first seal ring (10), cylinder block (11), cylinder (12), second seal ring (13), 4th "O"-ring (14), circlip for shaft (15), piston rod (16), right valve base (17), 5th "O"-ring (18), sealing gasket (19), seal gasket press cover (20), 6th "O"-ring (21), bolt (22), equilong threaded stud (23), nut (24), spring washer (25), 7th "O"-ring (26), piston (27), positioning checkpoint (28) and left valve base (29), it is characterized in that: described pipe flange (1) is arranged at sentinel valve two ends, described spring (2) is inserted on the spring seat (3) that is connected with piston rod (16) left end, described first "O"-ring (5) and the second "O"-ring (6) are arranged on left valve base (29) and the first shaft seal seat (4) joint, the first grommet (7) is provided with in the middle part of described first shaft seal seat (4) and piston rod (16) right-hand member outer rim joint, described first shaft seal seat (4) and the second shaft seal seat (8) joint are provided with the 3rd "O"-ring (9), described second shaft seal seat (8) is arranged at the first shaft seal seat (4) right-hand member, and is provided with the first seal ring (10) in the middle part of piston rod (16) right-hand member outer rim joint, described cylinder block (11) is arranged between the second shaft seal seat (8) and cylinder (12), and is connected with the second shaft seal seat (8) and cylinder (12), described cylinder (12) left end is fixedly connected with the second shaft seal seat (8), described second seal ring (13) is arranged between cylinder (12) and piston (27), described 4th "O"-ring (14) is arranged at piston (27) and piston rod (16) joint, described circlip for shaft (15) is arranged at piston (27) and piston rod (16) two ends, joint, described 5th "O"-ring (18) is arranged between sealing gasket (19) and seal gasket press cover (20), described seal gasket press cover (20) left side is fixedly connected with by bolt (22) with right-hand part, and is provided with the 6th "O"-ring (21) in joint, after described right valve base (17) is connected by equilong threaded stud (23) with left valve base (29), then the nut (24) through equilong threaded stud (23) two ends is fastenedly connected, described spring washer (25) is sheathed on equilong threaded stud (23), and is arranged between nut (24) and left valve base (29), described 7th "O"-ring (26) is arranged on cylinder block (11) and cylinder (12) joint, described positioning checkpoint (28) is arranged at seal gasket press cover (20) outer end.
2. a kind of piston type pneumatic control sentinel valve according to claim 1, is characterized in that: described right valve base (17) is same with shaft seal seat joint is provided with the first "O"-ring and the second "O"-ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420583417.0U CN204201240U (en) | 2014-09-28 | 2014-09-28 | A kind of piston type pneumatic control sentinel valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420583417.0U CN204201240U (en) | 2014-09-28 | 2014-09-28 | A kind of piston type pneumatic control sentinel valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204201240U true CN204201240U (en) | 2015-03-11 |
Family
ID=52659202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420583417.0U Expired - Fee Related CN204201240U (en) | 2014-09-28 | 2014-09-28 | A kind of piston type pneumatic control sentinel valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204201240U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979339A (en) * | 2017-04-14 | 2017-07-25 | 浙江亚光科技股份有限公司 | Gas pulses valve |
-
2014
- 2014-09-28 CN CN201420583417.0U patent/CN204201240U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979339A (en) * | 2017-04-14 | 2017-07-25 | 浙江亚光科技股份有限公司 | Gas pulses 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: 20150311 Termination date: 20150928 |
|
| EXPY | Termination of patent right or utility model |