CN103994265A - Novel two-way locking valve - Google Patents
Novel two-way locking valve Download PDFInfo
- Publication number
- CN103994265A CN103994265A CN201410202350.6A CN201410202350A CN103994265A CN 103994265 A CN103994265 A CN 103994265A CN 201410202350 A CN201410202350 A CN 201410202350A CN 103994265 A CN103994265 A CN 103994265A
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- CN
- China
- Prior art keywords
- valve
- novel
- guide piston
- seal
- piston
- 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
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/01—Locking-valves or other detent i.e. load-holding devices
Abstract
The invention relates to a novel two-way locking valve. The novel two-way locking valve is characterized by comprising a hollow middle body (3); an air inlet and an air outlet are formed in the side faces of the middle body (3) respectively, an upper cover (1) is installed at the top end of the middle body (3), a signal inlet is formed in the upper cover (1), a base (7) is installed at the bottom end of the middle body (3), a valve element component (4) is installed in the middle body (3), the valve element component (4) comprises a guide piston (41), a boss (42) is arranged on the top of the guide piston (41) and located in an air pressure cavity (2) in the upper portion inside the middle body (3), the outer wall of the boss (42) is in air seal with the inner wall of the air pressure cavity (2), and therefore the guide piston serves as an air control piston. The novel two-way valve can receive air pressure signals to enable an air courses to be connected and disconnected, thereby safely locking a pneumatic instrument.
Description
Technical field
The present invention relates to a kind of novel two logical locking valves.
Background technique
The logical locking valve structure of traditional one novel two is as shown in Figure 1: when the input signal pressure of S mouth is during higher than the switching point pressure of locking valve, gas control piston promotes reversing piston and moves downward, and A mouth is to the conducting of B mouth; When the input signal pressure of S mouth is during lower than the switching point pressure of locking valve, reversing piston moves upward under the reposition force effect of spring, and gas control piston also moves upward simultaneously, and A mouth disconnects to B mouth.The inside reversing piston of locking valve adopts the conventional spool valves structure of E type circle circumferential seal, the product of this kind of structure requires reversing piston, E type circle, intermediate to have very high processing request adding man-hour, and when easily producing gas leakage or the phenomenon of collaborating after ring wear, working life is lower.
Summary of the invention
The object of this invention is to provide that a kind of cost is low, zero leakage, the logical locking valve of working pressure one novel two high and long service life.
A kind of novel two logical locking valves, its specialization is: comprise the intermediate of hollow, have suction port and air outlet on the side of this intermediate, on the top of this intermediate, upper cover is installed, on this, cover and have signal input port, in the bottom of this intermediate, base is installed; In this intermediate, valve hole part is installed, this valve hole part comprises guide piston, is provided with boss at the top of this guide piston, and this boss is in the atmospheric pressure cavity of top in intermediate, and hermetic seal between the outer wall of this boss and the inwall of atmospheric pressure cavity, thereby as gas control piston; On the intermediate inwall between suction port and air outlet, be provided with the convex table type seal valve seat of a ring-type, on this convex table type seal valve seat, be provided with the first conical seal surface, and be installed with sealed valve core in the bottom of aforesaid guide piston, on sealing spool, be provided with the second conical seal surface; Between the bottom of this guide piston and base, Returnning spring is also installed in addition.
Wherein sealed valve core riveting is on the connecting rod of guide piston bottom.
Wherein sealed valve core adopts quality of rubber materials.
On the surface that wherein intermediate contacts with upper cover and base, seal ring is all installed.
Wherein be provided with guide section at the middle part of guide piston, on the surface that this guide section contacts with the inwall of intermediate, seal ring be installed; Wherein between the outer wall of the boss at guide piston top and the inwall of atmospheric pressure cavity, seal ring is installed.
The present invention relates to a kind of novel two logical locking valves, it adopts leading type working principle, can accept air pressure signal and realize the logical locking valve of one novel two of gas circuit conducting or disconnection, to realize the safety locking of pneumatic instrument, make pneumatic instrument remain on the position before air failure, can be widely used in pneumatic interlocking or safety control in instrument and meter industry.Locking valve of the present invention adopts metal seat valve and V-type rubber compression type structure to substitute traditional reversing piston to adopt the conventional spool valves structure of E type circle circumferential seal, has solved that conventional construction difficulty of processing is large, the easy shortcoming of gas leakage after ring wear; Also have that cost is low simultaneously, zero leakage, feature that working pressure is high, be applicable to being applied in control valve industry.
Brief description of the drawings
The structural representation that accompanying drawing 1 is background technique of the present invention;
Accompanying drawing 2 is structural representation of the present invention;
Accompanying drawing 3 is the structural representation of valve hole part 4 in the present invention.
Embodiment
As shown in Figure 2,3, the present invention is a kind of novel two logical locking valves, comprise the intermediate 3 of hollow, on the side of this intermediate 3, have suction port and air outlet, on the top of this intermediate 3, upper cover 1 is installed, on this upper cover 1, have signal input port, in the bottom of this intermediate 3, base 7 is installed; In this intermediate 3, valve hole part 4 is installed, this valve hole part 4 comprises guide piston 41, be provided with boss 42 at the top of this guide piston 41, this boss 42 is in the atmospheric pressure cavity 2 of intermediate 3 interior tops, and hermetic seal between the inwall of the outer wall of this boss 42 and atmospheric pressure cavity 2, thereby as gas control piston; On intermediate 3 inwalls between suction port and air outlet, be provided with the convex table type seal valve seat 5 of a ring-type, on this convex table type seal valve seat 5, be provided with the first conical seal surface, and be installed with sealed valve core 43 in the bottom of aforesaid guide piston 41, on sealing spool 43, be also provided with the second conical seal surface, can realize hermetic seal reliably thereby the contact by inside and outside two conical seal surfaces coordinates, between the bottom of this guide piston 41 and base 7, Returnning spring 6 is also installed in addition.
Wherein sealed valve core 43 rivetings are on the connecting rod of guide piston 41 bottoms, and sealed valve core 43 adopts quality of rubber materials.On the surface that intermediate 3 contacts with upper cover 1 and base 7 in addition, seal ring is all installed, is provided with guide section at the middle part of guide piston 41, on the surface that this guide section contacts with the inwall of intermediate 3, seal ring is installed; Wherein between the outer wall of the boss 42 at guide piston 41 tops and the inwall of atmospheric pressure cavity 2, seal ring is installed.
Below in conjunction with accompanying drawing 2,3, the present invention will be further described in detail:
As shown in Figure 2,3, the logical locking valve complete machine structure of one of the present invention novel two is as follows: upper cover 1, intermediate 3, base 7 have formed the shell mechanism of two logical locking valves; Guide piston 41, sealed valve core 43 become as a whole by riveting, install seal ring on guide piston 41 simultaneously.
Working principle of the present invention is as follows:
In the time that the signal air pressure of S mouth (signal input port) input is greater than the switching point pressure of locking valve, valve hole part 4 is moved downward by gas pressure, and Returnning spring 6 is compressed; Now sealed valve core 43 is thrown off with seal valve seat, and A mouth (suction port) is to B mouth (air outlet) conducting.In the time that the signal air pressure of S mouth input is less than the switching point pressure of locking valve, valve hole part 4 moves upward under the effect of Returnning spring 6, and sealed valve core 43 contacts with seal valve seat, and A mouth disconnects to B mouth.
On intermediate 3, be processed with input and output threaded coupling, for the connection of air pressure input and output.Seal valve seat is directly processed on intermediate 3, and sealed valve core 43 is nitrile rubber, and seal valve seat can ensure zero leakage after contacting with sealed valve core 43.Complete machine structure and piston seal adopt the sealing of O type circle, without leaking outside and interior leakage.Compare the gas control piston of conventional construction and the two style structure of reversing piston, valve hole part 4 of the present invention is integrated with the function of gas control piston and sealed valve core 43, and complete machine structure is simpler, cost is low, reliability is high.Overall design adopts leading type working principle, and small product size is little, range of working pressure is wide.Valve seat and spool adopt V-seal structure, have the feature of zero leakage, spool wear automatic-compensation.
Claims (5)
1. one kind novel two logical locking valve, it is characterized in that: the intermediate (3) that comprises hollow, on the side of this intermediate (3), have suction port and air outlet, on the top of this intermediate (3), upper cover (1) is installed, on this upper cover (1), have signal input port, in the bottom of this intermediate (3), base (7) is installed; Valve hole part (4) is installed in this intermediate (3), this valve hole part (4) comprises guide piston (41), be provided with boss (42) at the top of this guide piston (41), this boss (42) is in the atmospheric pressure cavity (2) of top in intermediate (3), and hermetic seal between the inwall of the outer wall of this boss (42) and atmospheric pressure cavity (2), thereby as gas control piston; On the intermediate between suction port and air outlet (3) inwall, be provided with the convex table type seal valve seat (5) of a ring-type, on this convex table type seal valve seat (5), be provided with the first conical seal surface, and be installed with sealed valve core (43) in the bottom of aforesaid guide piston (41), on sealing spool (43), be provided with the second conical seal surface; Between the bottom of this guide piston (41) and base (7), Returnning spring (6) is also installed in addition.
2. the logical locking valve of one as claimed in claim 1 novel two, is characterized in that: wherein sealed valve core (43) riveting is on the connecting rod of guide piston (41) bottom.
3. the logical locking valve of one as claimed in claim 1 novel two, is characterized in that: wherein sealed valve core (43) adopts quality of rubber materials.
4. the logical locking valve of one as claimed in claim 1 novel two, is characterized in that: on the surface that wherein intermediate (3) contacts with upper cover (1) and base (7), seal ring is all installed.
5. the logical locking valve of one as claimed in claim 1 novel two, is characterized in that: be wherein provided with guide section at the middle part of guide piston (41), on the surface that this guide section contacts with the inwall of intermediate (3), seal ring be installed; Wherein between the outer wall of the boss (42) at guide piston (41) top and the inwall of atmospheric pressure cavity (2), seal ring is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410202350.6A CN103994265A (en) | 2014-05-14 | 2014-05-14 | Novel two-way locking valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410202350.6A CN103994265A (en) | 2014-05-14 | 2014-05-14 | Novel two-way locking valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103994265A true CN103994265A (en) | 2014-08-20 |
Family
ID=51308518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410202350.6A Pending CN103994265A (en) | 2014-05-14 | 2014-05-14 | Novel two-way locking valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103994265A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763808A (en) * | 2016-12-15 | 2017-05-31 | 安徽海拓志永智能装备股份有限公司 | Efficient two-position |
| EP3428458A3 (en) * | 2017-06-23 | 2019-06-12 | Deere & Company | System and method for hydraulic actuator lock valve |
| CN114367551A (en) * | 2020-10-15 | 2022-04-19 | 北京京诚瑞信长材工程技术有限公司 | Water distribution valve group and multi-channel water cooling device for long-material high-quality special steel production line |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09269836A (en) * | 1996-03-29 | 1997-10-14 | Osaka Gas Co Ltd | Pressure control valve |
| CN102777668A (en) * | 2012-06-04 | 2012-11-14 | 宁波亚德客自动化工业有限公司 | Air control two-way valve |
| CN103672066A (en) * | 2013-12-05 | 2014-03-26 | 吴忠仪表有限责任公司 | Novel stop valve |
| CN203906980U (en) * | 2014-05-14 | 2014-10-29 | 吴忠仪表有限责任公司 | Air-control two-way lock valve |
-
2014
- 2014-05-14 CN CN201410202350.6A patent/CN103994265A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09269836A (en) * | 1996-03-29 | 1997-10-14 | Osaka Gas Co Ltd | Pressure control valve |
| CN102777668A (en) * | 2012-06-04 | 2012-11-14 | 宁波亚德客自动化工业有限公司 | Air control two-way valve |
| CN103672066A (en) * | 2013-12-05 | 2014-03-26 | 吴忠仪表有限责任公司 | Novel stop valve |
| CN203906980U (en) * | 2014-05-14 | 2014-10-29 | 吴忠仪表有限责任公司 | Air-control two-way lock valve |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763808A (en) * | 2016-12-15 | 2017-05-31 | 安徽海拓志永智能装备股份有限公司 | Efficient two-position |
| EP3428458A3 (en) * | 2017-06-23 | 2019-06-12 | Deere & Company | System and method for hydraulic actuator lock valve |
| US10487474B2 (en) | 2017-06-23 | 2019-11-26 | Deere & Company | System and method for hydraulic actuator lock valve |
| CN114367551A (en) * | 2020-10-15 | 2022-04-19 | 北京京诚瑞信长材工程技术有限公司 | Water distribution valve group and multi-channel water cooling device for long-material high-quality special steel production line |
| CN114367551B (en) * | 2020-10-15 | 2024-03-26 | 北京京诚瑞信长材工程技术有限公司 | Water diversion valve group and multichannel water cooling device for long-material excellent special steel production line |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140820 |