CN104712836A - Pneumatic/hydraulic fluid valve - Google Patents
Pneumatic/hydraulic fluid valve Download PDFInfo
- Publication number
- CN104712836A CN104712836A CN201510119767.0A CN201510119767A CN104712836A CN 104712836 A CN104712836 A CN 104712836A CN 201510119767 A CN201510119767 A CN 201510119767A CN 104712836 A CN104712836 A CN 104712836A
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- CN
- China
- Prior art keywords
- piston rod
- valve body
- chamber
- pneumatic
- hydraulic fluid
- 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.)
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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
- 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
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a pneumatic/hydraulic fluid valve which is cheap in price, convenient to install and repair, small in occupied space and compact in structure. The pneumatic/hydraulic fluid valve comprises a valve body, a concentric piston assembly and a pair of seal heads for being fixedly connected with the valve body and the piston assembly, a piston rod base is fixedly connected to the valve body, a first cavity is formed by enclosing the piston rod base, one end of a piston rod and the inner wall of the valve body, the top end of the piston rod is fixedly connected with the other end of the piston rod and attached with the corresponding seal head, and a second cavity is formed by enclosing the piston rod and the inner wall of the valve body. A first channel for being communicated with the first cavity and a second channel for being communicated with the second cavity are formed in the valve body, a fluid channel is formed between the outer wall of the valve body and the inner wall of the valve body, and the first channel and the second channel are communicated with external devices to input compressed gas or liquid, so that pressure difference is formed between the first cavity and the second cavity to drive the piston rod to displace in the axial direction, separation and attachment between the top head of the piston rod and the seal heads are achieved, and opening and closing of the fluid channel are controlled.
Description
Technical field
The present invention relates to a kind of valve, be specifically related to a kind of by gas or hydraulic pressure control valve opening and closing thus control fluid flowing in pipeline pneumatic/hydraulic fluid valve.
Background technique
As everyone knows, valve is the controlling component in fluid delivery system, valve applications field is very wide, picture auto manufacturing, automatic line, machinery, electric power, waterwork, water economic system etc., have cut-off, adjustment, water conservancy diversion, prevent the functions such as adverse current, voltage stabilizing, shunting or overflow pressure relief.For the valve of liquid control system, various valves used from the simplest stop valve to very complicated robot control system(RCS), its kind and specification are quite various.Valve can be used for the flowing controlling all kinds fluids such as air, water, steam, various Korrosionsmedium, mud, oil product, liquid metal and radiating medium.
At industrial automation production field, solenoid valve is set in fluid line usually in order to control the opening and closing of fluid line, although control accuracy is high, also exist cost high, inconvenience is installed, takes up room comparatively large and be not easy to the defects such as maintenance.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of cheap, easy for installation, take up room less, be convenient to keep in repair compact type pneumatic/hydraulic fluid valve.
In order to realize above-mentioned object, the invention provides following technological scheme:
Of the present invention pneumatic/hydraulic fluid valve, comprise valve body, concentric be located at piston assembly inside described valve interior wall and be located at described valve body two ends respectively in order to be fixedly connected with a pair end socket of described valve body and piston assembly, described piston assembly comprises piston rod, piston rod base and piston rod top, what described piston rod base was fixing be connected on valve body and enclose the first chamber with piston rod one end and valve interior wall, described piston rod comes directly towards the other end of fixing connection piston rod and fits with described end socket, described piston rod and valve interior wall enclose the second chamber, described valve body is respectively equipped with the first passage of connection first chamber and the second channel being communicated with the second chamber, fluid passage is formed between described valve outer wall and inwall, described first passage, second channel connection external equipment input pressurized gas or liquid are with the axial displacement of the difference of mineralization pressure between the first chamber and the second chamber piston rod, realize piston rod top and being separated and laminating between end socket, control the unlatching of fluid passage with closed, that is, when the pressure in the first chamber is less than the second chamber, piston rod compresses the first chamber and end socket and piston rod is come directly towards be separated, and fluid passage is in opening state, when the pressure in the first chamber is greater than the second chamber, piston rod compresses the second chamber and end socket and piston rod is come directly towards again fit, and fluid passage is in closed state.
In technique scheme, that fixes between described piston rod base and piston rod is provided with an elastic member.
Preferably, described elastic member is spring.
In technique scheme, the both sides described piston rod being positioned at the second chamber are at least respectively provided with a seal ring.
Preferably, the both sides described piston rod being positioned at the second chamber are respectively equipped with a pair seal ring.
Preferably, described seal ring is corrosion protection seal ring.
In technique scheme, described valve body two ends by arrange screw thread or flange be connected with external fluid line.
In technique scheme, described piston rod top is taper convex surface or spherical arc with end socket faying surface.
In technique scheme, described valve body can also be provided with the sensor interface for monitoring fluid inner fluid passage situation.
In technique scheme, the liquid outlet of described fluid passage be provided with can and liquid entering hole between form some apertures of pulse.
Of the present invention pneumatic/hydraulic fluid valve is compared with the solenoid valve in existing commercial Application, its structure is more compact, install also very convenient, the space taken also reduces accordingly, owing to there is no electrical assembly, its price is also more cheap, is the desirable alternative of solenoid valve, has potential broad prospect of application.
Accompanying drawing explanation
In order to be illustrated more clearly in technological scheme of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing for the present invention in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 be the embodiment of the present invention 1 pneumatic/the cross-section structure overall schematic of hydraulic fluid valve;
Fig. 2 be of the present invention pneumatic/the valve body cross-sectional view of hydraulic fluid valve;
Fig. 3 be of the present invention pneumatic/the end socket cross-sectional view of hydraulic fluid valve;
Fig. 4 be of the present invention pneumatic/the piston rod base cross-sectional view of hydraulic fluid valve;
Fig. 5 be of the present invention pneumatic/piston rod of hydraulic fluid valve top cross-sectional view;
Fig. 6 be of the present invention pneumatic/the piston rod cross-sectional view of hydraulic fluid valve;
Fig. 7 be the embodiment of the present invention 2 pneumatic/the cross-section structure overall schematic of hydraulic fluid valve.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be described in detail the technological scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, belongs to the scope of protection of the invention.
Embodiment 1
As shown in figs. 1 to 6, of the present invention pneumatic/hydraulic fluid valve, comprise valve body 1, the concentric piston assembly being located at valve body 1 inner wall be located at valve body 1 two ends respectively in order to be fixedly connected with a pair end socket 3 of valve body 1 and piston assembly, piston assembly comprises piston rod 2, piston rod base 4 and piston rod top 5, what piston rod base 4 was fixing be connected on valve body 1 and enclose the first chamber 6 with piston rod 2 one end and valve body 1 inwall, piston rod comes directly towards the other end of the connection piston rod 2 that 5 fix and fits with end socket 3, piston rod top 5 is taper convex surface with end socket 3 faying surface, also can be spherical arc, piston rod 2 and valve body 1 inwall enclose the second chamber 7, valve body 1 is respectively equipped with the first passage 8 of connection first chamber 6 and the second channel 9 being communicated with the second chamber 7, fluid passage is formed between valve body 1 outer wall and inwall, first passage 8, second channel 9 is communicated with external equipment input pressurized gas or liquid with piston rod 2 axial displacement of the difference of mineralization pressure between the first chamber 6 and the second chamber 7, realize piston rod top 5 and being separated and laminating between end socket 3, control the unlatching of fluid passage with closed, that is, when the pressure in the first chamber 6 is less than the second chamber 7, piston rod 2 compresses the first chamber 6 and makes end socket 3 and piston rod come directly towards 5 to be separated, and fluid passage is in opening state, when the pressure in the first chamber 6 is greater than the second chamber 7, piston rod 2 compresses the second chamber 7 and makes end socket 3 and piston rod come directly towards 5 again to fit, and fluid passage is in closed state.
Both sides piston rod 2 being positioned at the second chamber 7 are at least respectively provided with a seal ring 10.As shown in Figure 1, both sides piston rod 2 being positioned at the second chamber 7 are respectively equipped with a pair seal ring 10, effectively can seal and isolate the first chamber 6 and the second chamber 7, when first passage 8, second channel 9 are communicated with external equipment input pressurized gas or liquid with the difference of mineralization pressure between the first chamber 6 and the second chamber 7, pressure leakages can not be caused; Simultaneously seal ring 10 also can enter the second chamber 7 by the fluid in block fluid passage.When fluid is the corrosive liquids such as strong acid and strong base, seal ring 10 also should select corrosion protection seal ring.
First passage 8, fixing being connected with the first chamber 6, second chamber 7 of valve body 1 and piston assembly of second channel 9, all the other external equipment connecting ends both can be threaded, also can be that Flange joint or rapid pipe joint connect, according to input be pressurized gas or compressed liquid and character thereof, intensity selected.When only inputting pressurized gas by second channel 9, can select to input pressurized gas by first passage 8, also can select closed first passage 8 and airtight first chamber 6, the gas compressed in the first chamber 6 is poor with mineralization pressure.
Valve body 1 two ends are connected with external fluid line by the outside thread arranged, and flange also can be selected to be connected with external fluid line, should be selected according to the operation field situation of reality.
Valve body 1 can also be provided with the sensor interface for monitoring fluid inner fluid passage situation.The liquid outlet of fluid passage be provided with can and liquid entering hole between form some apertures of pulse, effectively can prevent the blocking of fluid passage.
Embodiment 2
As shown in Figure 7, of the present invention pneumatic/hydraulic fluid valve, comprise valve body 1, the concentric piston assembly being located at valve body 1 inner wall be located at valve body 1 two ends respectively in order to be fixedly connected with a pair end socket 3 of valve body 1 and piston assembly, piston assembly comprises piston rod 2, piston rod base 4 and piston rod top 5, what piston rod base 4 was fixing be connected on valve body 1 and enclose the first chamber 6 with piston rod 2 one end and valve body 1 inwall, piston rod comes directly towards the other end of the connection piston rod 2 that 5 fix and fits with end socket 3, piston rod top 5 is taper convex surface with end socket 3 faying surface, also can be spherical arc, piston rod 2 and valve body 1 inwall enclose the second chamber 7, valve body 1 is respectively equipped with the first passage 8 of connection first chamber 6 and the second channel 9 being communicated with the second chamber 7, fluid passage is formed between valve body 1 outer wall and inwall, first passage 8, second channel 9 is communicated with external equipment input pressurized gas or liquid with piston rod 2 axial displacement of the difference of mineralization pressure between the first chamber 6 and the second chamber 7, realize piston rod top 5 and being separated and laminating between end socket 3, control the unlatching of fluid passage with closed, that is, when the pressure in the first chamber 6 is less than the second chamber 7, piston rod 2 compresses the first chamber 6 and makes end socket 3 and piston rod come directly towards 5 to be separated, and fluid passage is in opening state, when the pressure in the first chamber 6 is greater than the second chamber 7, piston rod 2 compresses the second chamber 7 and makes end socket 3 and piston rod come directly towards 5 again to fit, and fluid passage is in closed state.That fixes between piston rod base 4 and piston rod 2 is provided with an elastic member; it is spring 11 in figure; the pressure mutual response that this spring 11 not only can be formed with the pressurized gas in the second chamber 7 or liquid; also can when without pressurized gas or liquid input; the energy of retracting spring 11 self accumulation promotes piston rod 2 and makes end socket 3 and piston rod come directly towards 5 again to fit; fluid passage is in closed state, plays certain protective action.
Both sides piston rod 2 being positioned at the second chamber 7 are at least respectively provided with a seal ring 10.As shown in Figure 1, both sides piston rod 2 being positioned at the second chamber 7 are respectively equipped with a pair seal ring 10, effectively can seal and isolate the first chamber 6 and the second chamber 7, when first passage 8, second channel 9 are communicated with external equipment input pressurized gas or liquid with the difference of mineralization pressure between the first chamber 6 and the second chamber 7, pressure leakages can not be caused; Simultaneously seal ring 10 also can enter the second chamber 7 by the fluid in block fluid passage.When fluid is the corrosive liquids such as strong acid and strong base, seal ring 10 also should select corrosion protection seal ring.
First passage 8, fixing being connected with the first chamber 6, second chamber 7 of valve body 1 and piston assembly of second channel 9, all the other external equipment connecting ends both can be threaded, also can be that Flange joint or rapid pipe joint connect, according to input be pressurized gas or compressed liquid and character thereof, intensity selected.When only inputting pressurized gas by second channel 9, can select to input pressurized gas by first passage 8, also can select closed first passage 8 and airtight first chamber 6, the gas compressed in the first chamber 6 is poor with mineralization pressure.
Valve body 1 two ends are connected with external fluid line by the outside thread arranged, and flange also can be selected to be connected with external fluid line, should be selected according to the operation field situation of reality.
Valve body 1 can also be provided with the sensor interface for monitoring fluid inner fluid passage situation.The liquid outlet of fluid passage be provided with can and liquid entering hole between form some apertures of pulse, effectively can prevent the blocking of fluid passage.
Of the present invention pneumatic/material of hydraulic fluid valve member can be molded by engineering plastics such as PVDC, PP, PVC, PPr, PVDF, PTFE, teflon (PTFE) has outstanding wear-resisting property and decay resistance, can working life of elongate member, in the occasion that usage requirement is not high, section components can be made up of polypropylene (PP) material.
In sum, of the present invention pneumatic/hydraulic fluid valve is compared with the solenoid valve in existing commercial Application, its structure is more compact, install also very convenient, the space taken also reduces accordingly, and owing to not having electrical assembly, its price is also more cheap, be the desirable alternative of solenoid valve, there is potential broad prospect of application.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention 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 present invention.Any reference character in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification is described according to mode of execution, but not each mode of execution only comprises an independently technological scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technological scheme in each embodiment also through appropriately combined, can form other mode of executions that it will be appreciated by those skilled in the art that.
Claims (10)
1. pneumatic/hydraulic fluid valve, it is characterized in that: comprise valve body (1), the concentric piston assembly being located at described valve body (1) inner wall be located at described valve body (1) two ends respectively in order to be fixedly connected with a pair end socket (3) of described valve body (1) and piston assembly, described piston assembly comprises piston rod (2), piston rod base (4) and piston rod top (5), what described piston rod base (4) was fixing be connected to valve body (1) is upper and enclose the first chamber (6) with piston rod (2) one end and valve body (1) inwall, described piston rod comes directly towards the other end of (5) fixing connection piston rod (2) and fits with described end socket (3), described piston rod (2) and valve body (1) inwall enclose the second chamber (7), described valve body (1) be respectively equipped with the first passage (8) of connection first chamber (6) and be communicated with the second channel (9) of the second chamber (7), described valve body (1) forms fluid passage between outer wall and inwall, described first passage (8), second channel (9) connection external equipment input pressurized gas or liquid are with piston rod (2) axial displacement of the difference of mineralization pressure between the first chamber (6) and the second chamber (7), realize piston rod top (5) and being separated and laminating between end socket (3), control the unlatching of fluid passage with closed.
2. according to claim 1 pneumatic/hydraulic fluid valve, it is characterized in that: fixingly between described piston rod base (4) and piston rod (2) be provided with an elastic member (11).
3. according to claim 2 pneumatic/hydraulic fluid valve, it is characterized in that: described elastic member (11) is spring.
4. according to claim 1 pneumatic/hydraulic fluid valve, it is characterized in that: the both sides described piston rod (2) being positioned at the second chamber (7) are at least respectively provided with a seal ring (10).
5. according to claim 4 pneumatic/hydraulic fluid valve, it is characterized in that: the both sides described piston rod (2) being positioned at the second chamber (7) are respectively equipped with a pair seal ring (10).
6. according to claim 5 pneumatic/hydraulic fluid valve, it is characterized in that: described seal ring (10) is corrosion protection seal ring.
7. according to claim 1 pneumatic/hydraulic fluid valve, it is characterized in that: described valve body (1) two ends by arrange screw thread or flange be connected with external fluid line.
8. according to claim 1 pneumatic/hydraulic fluid valve, it is characterized in that: described piston rod top (5) is taper convex surface or spherical arc with end socket (3) faying surface.
9. according to claim 1 pneumatic/hydraulic fluid valve, it is characterized in that: described valve body (1) can also be provided with the sensor interface for monitoring fluid inner fluid passage situation.
10. according to claim 1 pneumatic/hydraulic fluid valve, it is characterized in that: the liquid outlet of described fluid passage be provided with can and liquid entering hole between form some apertures of pulse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510119767.0A CN104712836A (en) | 2015-03-19 | 2015-03-19 | Pneumatic/hydraulic fluid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510119767.0A CN104712836A (en) | 2015-03-19 | 2015-03-19 | Pneumatic/hydraulic fluid valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104712836A true CN104712836A (en) | 2015-06-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510119767.0A Pending CN104712836A (en) | 2015-03-19 | 2015-03-19 | Pneumatic/hydraulic fluid valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104712836A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107991003A (en) * | 2017-11-27 | 2018-05-04 | 天津航空机电有限公司 | Test method, device, equipment and the storage medium of temperature sensor time constant |
| CN113790272A (en) * | 2021-08-25 | 2021-12-14 | 华中科技大学 | Automatic valve device for extrusion discharging of bottom of mixing pot |
| TWI798029B (en) * | 2022-03-17 | 2023-04-01 | 吳淑卿 | Electromagnetic valve and delivery device having a electromagnetic valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101403444A (en) * | 2008-11-17 | 2009-04-08 | 天津理工大学 | Non-discharging type liquid-control hydraulic break valve |
| CN201265693Y (en) * | 2008-09-18 | 2009-07-01 | 浙江化工科技集团有限公司 | Airflow impulse valve |
| US20090212243A1 (en) * | 2008-02-25 | 2009-08-27 | Mills Douglas W | Pneumatically-operated valve for nitrous oxide injection system |
| CN205026188U (en) * | 2015-03-19 | 2016-02-10 | 徐竹林 | Pneumatics / hydraulic fluid valve |
-
2015
- 2015-03-19 CN CN201510119767.0A patent/CN104712836A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090212243A1 (en) * | 2008-02-25 | 2009-08-27 | Mills Douglas W | Pneumatically-operated valve for nitrous oxide injection system |
| CN201265693Y (en) * | 2008-09-18 | 2009-07-01 | 浙江化工科技集团有限公司 | Airflow impulse valve |
| CN101403444A (en) * | 2008-11-17 | 2009-04-08 | 天津理工大学 | Non-discharging type liquid-control hydraulic break valve |
| CN205026188U (en) * | 2015-03-19 | 2016-02-10 | 徐竹林 | Pneumatics / hydraulic fluid valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107991003A (en) * | 2017-11-27 | 2018-05-04 | 天津航空机电有限公司 | Test method, device, equipment and the storage medium of temperature sensor time constant |
| CN107991003B (en) * | 2017-11-27 | 2019-11-12 | 天津航空机电有限公司 | Test method, device, equipment and the storage medium of temperature sensor time constant |
| CN113790272A (en) * | 2021-08-25 | 2021-12-14 | 华中科技大学 | Automatic valve device for extrusion discharging of bottom of mixing pot |
| TWI798029B (en) * | 2022-03-17 | 2023-04-01 | 吳淑卿 | Electromagnetic valve and delivery device having a electromagnetic valve |
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Application publication date: 20150617 |