CN105114656A - Exhaust valve and piston thereof - Google Patents
Exhaust valve and piston thereof Download PDFInfo
- Publication number
- CN105114656A CN105114656A CN201510503118.0A CN201510503118A CN105114656A CN 105114656 A CN105114656 A CN 105114656A CN 201510503118 A CN201510503118 A CN 201510503118A CN 105114656 A CN105114656 A CN 105114656A
- Authority
- CN
- China
- Prior art keywords
- piston
- exhaust port
- outlet valve
- sealing
- air
- 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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
Abstract
The invention relates to an exhaust valve and a piston thereof, and belongs to the technical field of valves. The exhaust valve is mainly applied to a railway vehicle windshield wiper system so as to realize direction change and comprises a valve body, an exhaust hole carrier and the piston, wherein the piston is of a flexibly cylindrical structure, and annular deformable grooves are formed in the periphery of the end surface of the piston; the piston is driven by air pressure to move in a piston cavity formed in the valve body, and is turned into a bowl-shaped structure under the action of air pressure when air enters, thereby realizing the communication of an air intake and a working hole; meanwhile, the piston and the exhaust hole carrier are sealed by air pressure; and during exhausting, the piston is driven by air to move, the air intake is blocked off by the piston, and an exhaust hole is communicated with the working hole, thereby exhausting air and realizing the change of directions of products. The exhaust valve solves the problems in the prior art that due to the piston structure problem, the instability of the sealing structure of the valve is caused, and the occurrence of sealing failure easily occurs. The exhaust valve is simple in integral structure and reliable in sealing.
Description
Technical field
The present invention relates to a kind of outlet valve and piston thereof, belong to valve applications technical field.
Background technique
Outlet valve be generally used for pressurized air be power original paper pneumatic clutch in, its effect is communicated with the cylinder of clutch brake, and pass into pressurized air by outlet valve to clutch brake, and rapidly the air in clutch brake cylinder is discharged in the process of clutch reset, to be conducive to fast braking, and equipment is safe and reliable.This valve is widely used in track vehicle windscreen wipers system, and the emergent gas circuit State Transferring action of rail vehicle mainly completes by rapid escape valve, needs reliable performance.
At present, the sealing effect of existing outlet valve is not good, if Authorization Notice No. is in the patent of the structure of a kind of Quick air-discharge suction valve of CN203202292U, disclose outlet valve and comprise valve body, air inlet valve gap, spring, rubber piston, spool, O RunddichtringO, rubber piston is bowl structure, the sealing of valve leans on the edge of the rubber piston of bowl structure and cavity inner wall to seal, for linear sealing structure, and have spring after rubber piston, rubber piston can not return valve gap end face, between there is certain interval, when air pressure increases suddenly, likely by piston ridge pressure, cause seal failure, and after long-time use, rubber piston edge can be worn, rubber piston is because the existence of spring can not directly touch valve gap end face, sealing can not be realized, cause seal failure.
Summary of the invention
The object of the present invention is to provide a kind of outlet valve, cause because of piston structure problem valve sealing structure unstable to solve in prior art, easily occur the problem of seal failure; The present invention also aims to provide one to cause because of piston structure problem valve sealing structure unstable to solve in prior art, easily occur the piston of the problem of seal failure.
In order to solve the problems of the technologies described above, main technical schemes of the present invention is: a kind of outlet valve, comprise the housing being provided with piston cavity, housing is also provided with the inlet hole be communicated with piston cavity and working hole, piston is provided with in piston cavity, described piston comprises the flexible plunger body moved along axis left and right directions, and described flexible plunger body has for sealing with respective pistons chamber the cylindrical seal side face be slidably matched, and periphery place, flexible plunger body left side is provided with the distortion groove of ring-type.
Described housing comprises valve body and is arranged on the exhaust port carrier of the boss-shaped in the piston cavity on valve body, and described exhaust port carrier shaft is upwards provided with exhaust port.
Described exhaust port carrier and valve body interference fit.
The sectional shape of described distortion groove is become large U-shaped gradually from bottom land to notch bore.
On the left side of described piston in the inner side of the distortion groove of ring-type have for exhaust port inside the planar section that is sealed and matched of aperture.
A kind of piston, comprise the flexible plunger body that axis moves in left-right direction, described flexible plunger body is provided with to be had for sealing with respective pistons chamber the cylindrical seal side face be slidably matched, and periphery place, flexible plunger body left side is provided with the distortion groove of ring-type.
The sectional shape of described distortion groove is become large U-shaped gradually from bottom land to notch bore.
The left side of described piston has in the inner side of cyclical deformation groove for coordinating planar section with the relief hole that aperture inside relief hole is sealed and matched.
The invention has the beneficial effects as follows: the piston that described outlet valve uses is flexible plunger, this flexible plunger is provided with cylindrical seal side face, periphery place, piston left side is provided with cyclical deformation groove, air effect is in distortion groove, flexible plunger side face and inner walls are compressed, sealing coordinates with inner walls face by the side face of piston, is face and the coordinating of face, seals reliably.
Accompanying drawing explanation
Fig. 1 is: in the present invention outlet valve an embodiment in the operating diagram that enters from inlet hole of gas;
Fig. 2 is: in the present invention outlet valve an embodiment in the gas operating diagram of discharging from exhaust port.
In figure: 1-valve body; 2-exhaust port carrier; 3-rubber piston; 4-cavity; 21-exhaust port carrier sealing surface; 22-exhaust port interface; 31-distortion groove; P-inlet hole; R-exhaust port; A-working hole.
Embodiment
Below in conjunction with drawings and the specific embodiments, the invention will be further described: as shown in Figure 1: the outlet valve in the present invention comprises valve body 1, exhaust port carrier 2 and rubber piston 3, housing is processed with the cavity 4 installing piston, inlet hole P and working hole A, inlet hole P and cavity 4 axially communicate and the diameter of inlet hole P is less than the diameter of cavity 4, rubber piston 3 is cylindrical structural, be positioned at cavity 4, axially can move left and right along cavity 4, after assembling, the diameter of rubber piston 3 is identical with cavity 4 diameter, rubber piston 3 end face periphery place is provided with the distortion groove 31 of annular, groove is out of shape towards exhaust port R direction during assembling, exhaust port carrier 2 is arranged in cavity 4, and exhaust port carrier 2 is axially arranged with exhaust port R, and working hole A is communicated with exhaust port R sidewall, and working hole A is communicated with cylinder or other operation mechanisms inside, exhaust port carrier 2 is fixed in cavity 4, and exhaust port carrier 2 is round boss shape structure, exhaust port carrier 2 large end face and valve body 1 interference fit, and exhaust port carrier sealing surface 21 is plane structure, seals with rubber piston 3 plane contact.
The working principle of the outlet valve of this invention is: as shown in Figure 1, when pressurized air enters housing from inlet hole P, rubber piston 3 is subject to air pressure and can moves to exhaust port R direction, rubber piston 3 realizes sealing by air pressure with exhaust port carrier sealing surface 21, because rubber piston 3 is elastic caoutchouc, can be out of shape when being under pressure, rubber piston 3 peripheral position is not owing to having the support of end face, be compressed the pressure meeting turning-in of air, form a bowl structure, also therefore gap can be there is with cavity 4 inwall in rubber piston 3, now inlet hole P is communicated with working hole A, pressurized air then enters valve body from gap, discharge from working hole A.
As shown in Figure 2: when pressurized air enters into valve body 1 from working hole A, gas pressure acts on rubber piston 3, promotion rubber piston 3 moves backward and falls back on cavity 4 bottom end face, gas acts in the distortion groove on rubber piston 3, peripheral sealing surface and inner walls are sealed, thus rubber piston 3 block inlet hole P.Sealing coordinates with inner walls face by the side face of piston, and be face and the coordinating of face, seal reliably, now working hole A and inlet hole P is obstructed, is communicated with exhaust port R, and gas is discharged from exhaust port R, Realization of Product commutation.
Gas meeting compressive strain groove inner wall, also has certain compensating action to rubber piston 3 periphery wear in addition.And without any bar between rubber piston 3 and inlet hole back seat, when after all surface wears of sealing, the end face of rubber piston 3 and cavity 4 bottom end face also can be leaned on to seal, sealing is reliable.All air-path interfaces are threaded coupling structure, facilitate the connection of tracheae.
In other embodiments, rubber piston also can be other flexible composites.
The embodiment of the piston in the present invention is identical with the piston in above-mentioned outlet valve, and in this not go into detail.
Claims (8)
1. an outlet valve, comprise the housing being provided with piston cavity, housing is also provided with the inlet hole be communicated with piston cavity and working hole, piston is provided with in piston cavity, it is characterized in that: described piston comprises the flexible plunger body moved along axis left and right directions, described flexible plunger body has for sealing with respective pistons chamber the cylindrical seal side face be slidably matched, and periphery place, flexible plunger body left side is provided with the distortion groove of ring-type.
2. outlet valve according to claim 1, is characterized in that: described housing comprises valve body and is arranged on the exhaust port carrier of the boss-shaped in the piston cavity on valve body, and described exhaust port carrier shaft is upwards provided with exhaust port.
3. outlet valve according to claim 2, is characterized in that: described exhaust port carrier and valve body interference fit.
4. outlet valve according to claim 1, is characterized in that: the sectional shape of described distortion groove is become large U-shaped from bottom land gradually to notch bore.
5. outlet valve according to claim 2, is characterized in that: on the left side of described piston in the inner side of the distortion groove of ring-type have for exhaust port inside the planar section that is sealed and matched of aperture.
6. a piston, comprise the flexible plunger body that axis moves in left-right direction, it is characterized in that: described flexible plunger body is provided with to be had for sealing with respective pistons chamber the cylindrical seal side face be slidably matched, and periphery place, flexible plunger body left side is provided with the distortion groove of ring-type.
7. piston according to claim 6, is characterized in that: the sectional shape of described distortion groove is become large U-shaped from bottom land gradually to notch bore.
8. piston according to claim 6, is characterized in that: the left side of described piston has in the inner side of cyclical deformation groove for coordinating planar section with the relief hole that aperture inside relief hole is sealed and matched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510503118.0A CN105114656A (en) | 2015-08-17 | 2015-08-17 | Exhaust valve and piston thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510503118.0A CN105114656A (en) | 2015-08-17 | 2015-08-17 | Exhaust valve and piston thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105114656A true CN105114656A (en) | 2015-12-02 |
Family
ID=54662710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510503118.0A Pending CN105114656A (en) | 2015-08-17 | 2015-08-17 | Exhaust valve and piston thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105114656A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108608024A (en) * | 2016-12-13 | 2018-10-02 | 全杏林 | The Quick air-discharge structure of CNC gang drill groups |
| CN108775419A (en) * | 2018-07-13 | 2018-11-09 | 常州市翰琪电机有限公司 | Concealed mute rapid escape valve, Mute cylinder and mute type numerical control gang drill device |
| CN112316869A (en) * | 2020-10-21 | 2021-02-05 | 厦门汉旭硅材料科技有限公司 | Preparation equipment and preparation process of polysilicon modified wear-resistant paste and polysilicon modified wear-resistant paste |
| CN114607501A (en) * | 2022-03-30 | 2022-06-10 | 重庆长安汽车股份有限公司 | Engine air overflow pipe structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4553736A (en) * | 1981-12-17 | 1985-11-19 | American Standard Inc. | Pneumatic plunger-type valve |
| CN202302232U (en) * | 2011-09-20 | 2012-07-04 | 天津精通控制仪表技术有限公司 | Quick exhaust valve |
| CN203202292U (en) * | 2012-11-18 | 2013-09-18 | 苏州蓝王机床工具科技有限公司 | Rapid inlet and exhaust valve structure |
| CN103343823A (en) * | 2013-07-18 | 2013-10-09 | 刘尚田 | Electrically-controlled guiding quick exhaust valve and method for operating same |
| CN104265919A (en) * | 2014-10-09 | 2015-01-07 | 平原机器厂（新乡） | Valve spool and rapid escape valve applying same and pneumatic piston actuating mechanism |
| CN104776262A (en) * | 2015-05-08 | 2015-07-15 | 中国人民解放军后勤工程学院 | Automatic exhaust valve |
| CN204878846U (en) * | 2015-08-17 | 2015-12-16 | 平原机器厂（新乡） | Air bleeding valve and piston thereof |
-
2015
- 2015-08-17 CN CN201510503118.0A patent/CN105114656A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4553736A (en) * | 1981-12-17 | 1985-11-19 | American Standard Inc. | Pneumatic plunger-type valve |
| CN202302232U (en) * | 2011-09-20 | 2012-07-04 | 天津精通控制仪表技术有限公司 | Quick exhaust valve |
| CN203202292U (en) * | 2012-11-18 | 2013-09-18 | 苏州蓝王机床工具科技有限公司 | Rapid inlet and exhaust valve structure |
| CN103343823A (en) * | 2013-07-18 | 2013-10-09 | 刘尚田 | Electrically-controlled guiding quick exhaust valve and method for operating same |
| CN104265919A (en) * | 2014-10-09 | 2015-01-07 | 平原机器厂（新乡） | Valve spool and rapid escape valve applying same and pneumatic piston actuating mechanism |
| CN104776262A (en) * | 2015-05-08 | 2015-07-15 | 中国人民解放军后勤工程学院 | Automatic exhaust valve |
| CN204878846U (en) * | 2015-08-17 | 2015-12-16 | 平原机器厂（新乡） | Air bleeding valve and piston thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108608024A (en) * | 2016-12-13 | 2018-10-02 | 全杏林 | The Quick air-discharge structure of CNC gang drill groups |
| CN108775419A (en) * | 2018-07-13 | 2018-11-09 | 常州市翰琪电机有限公司 | Concealed mute rapid escape valve, Mute cylinder and mute type numerical control gang drill device |
| CN112316869A (en) * | 2020-10-21 | 2021-02-05 | 厦门汉旭硅材料科技有限公司 | Preparation equipment and preparation process of polysilicon modified wear-resistant paste and polysilicon modified wear-resistant paste |
| CN112316869B (en) * | 2020-10-21 | 2022-01-28 | 厦门汉旭硅材料科技有限公司 | Preparation equipment and preparation process of polysilicon modified wear-resistant paste |
| CN114607501A (en) * | 2022-03-30 | 2022-06-10 | 重庆长安汽车股份有限公司 | Engine air overflow pipe structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 453000 Jiefang Road, Henan, Xinxiang, No. 1 Applicant after: Xinxiang Pingyuan Aviation Equipment Co., Ltd. Address before: 453000 Jiefang Road, Henan, Xinxiang, No. 1 Applicant before: Pingyuan Machine Factory (Xinxiang) |
|
| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151202 |
|
| RJ01 | Rejection of invention patent application after publication |