CN106194710B - Membrane pump multifunctional exhaust valve - Google Patents

Membrane pump multifunctional exhaust valve Download PDF

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Publication number
CN106194710B
CN106194710B CN201610746079.1A CN201610746079A CN106194710B CN 106194710 B CN106194710 B CN 106194710B CN 201610746079 A CN201610746079 A CN 201610746079A CN 106194710 B CN106194710 B CN 106194710B
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China
Prior art keywords
valve
exhaust
passage
axial
cavity
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CN201610746079.1A
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CN106194710A (en
Inventor
管汝光
杨旺
符义红
陈礼
张顺平
雷文刚
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Chongqing Pump Industry Co Ltd
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Chongqing Pump Industry Co Ltd
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Priority to CN201610746079.1A priority Critical patent/CN106194710B/en
Publication of CN106194710A publication Critical patent/CN106194710A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10Valves; Arrangement of valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/04Draining
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/06Venting
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10Valves; Arrangement of valves
    • F04B53/1002Ball valves

Abstract

The invention discloses a kind of membrane pump multifunctional exhaust valve, adjusting screw rod is connected with valve body cavity inner thread, and oil pipe is arranged on valve body and connected with valve body radial passage.Joint installation cavity is provided with valve body lower end face and is communicated by axial passage with valve body cavity;Connector center is provided with exhaust passage, and exhaust passage upper end oral area is provided with valve ball, and stage clip is provided between valve ball and valve body axial passage.Size exhaust axial passage and size exhaust radial passage are provided with adjusting screw rod, size exhaust radial passage is in identical height with valve body radial passage.Small exhaust axial passage front end is shoulder hole, is provided with valve rod and screw in shoulder hole, is provided with axial air flue at screw center, axial notch is provided with valve rod periphery, and the facing groove communicated with axial notch is provided with the end face of valve rod both ends.This air bleeding valve can flexibly switch under three kinds of a large amount of exhausts, micro exhaust and closing states, and every kind of state can ensure functional reliability well.

Description

Membrane pump multifunctional exhaust valve
Technical field
The present invention relates to pumped (conveying) medium membrane pump, and in particular to a kind of membrane pump multifunctional exhaust valve, belongs to barrier film Pump technical field.
Background technology
Membrane pump is a kind of type of common pump, and barrier film is the important component of the pump, and barrier film side is hydraulic fluid chamber, separately Side is medium chamber.Membrane pump drives barrier film forward end or rear end movement by the reciprocating motion of the pistons of hydraulic fluid chamber side, So as to drive the inlet valve of barrier film opposite side fluid end and dump valve alternately to open and close, so as to realize reciprocal feed liquor and row Liquid, it is achieved in medium conveying.Air bleeding valve is provided with the hydraulic fluid chamber of membrane pump, when occurring gas in hydraulic fluid chamber, i.e., It can be automatically drained out by air bleeding valve.In normal work, gas is seldom in hydraulic fluid chamber, but works as and be in hydraulic fluid chamber oiling shape During state, then need largely to be vented, when pump is in stopped status, it is necessary to close air bleeding valve.Therefore air bleeding valve need to meet this three Kind function.
Existing automatic exhaust steam valve structure is shown in figure one, mainly by valve body 1, valve cap 2, valve rod 3, oil pipe 4 and the structure of adjusting screw rod 8 Into the valve body cavity 5 provided with opening upwards, valve cap are located at valve body cavity lower end, opening upwards are provided with valve cap in valve body Valve cap chamber 13, valve rod 3 is arranged on valve cap intracavitary.Adjusting screw rod screws in valve body cavity and connected with valve body cavity inner thread from top to bottom Connect, the middle part of adjusting screw rod lower surface is provided with cavity 12, and cavity wall is provided with rod radial air vent 7, in adjusting screw rod outer wall and valve The exhaust circuit 10 of ring-type is provided between body cavity walls, exhaust circuit connects with steam vent.Oil pipe is arranged on valve body and passed through Interface channel on valve body connects with exhaust circuit.Bullet is provided between valve rod upper surface and adjusting screw rod lower surface cavity bottom Spring 11.Adjusting screw rod is provided with handle 9, can rotate adjusting screw rod by handle.It is provided between valve cap and valve body cavity bottom Sealing gasket 6, there is through hole among sealing gasket;Exhaust passage is provided with valve body, exhaust passage one end communicates with hydraulic fluid chamber, another End is communicated by sealing gasket central through hole with valve cap chamber.
During normal exhaust, adjusting screw rod is moved down by handle, and then compressed sealing gasket by valve cap, now gas Exhaust passage can be passed sequentially through, sealing gasket central through hole, the axial passage in valve rod side wall enter the sky of adjusting screw rod lower surface In chamber, and discharged by the interface channel on rod radial air vent, exhaust circuit, valve body and oil pipe.
When needing largely to be vented, move up adjusting screw rod by handle, so as to unclamp sealing gasket, now gas passes sequentially through Exhaust passage, sealing gasket central through hole, the axial passage in valve cap side wall enter in the cavity of adjusting screw rod lower surface, and passed through Rod radial air vent, exhaust circuit, the interface channel on valve body and oil pipe discharge.
Said structure air bleeding valve is primarily present following deficiency:1st, when valve occurs abnormal(It is as inclined in washed away rear oil drain quantity for a long time Greatly), can not shut;The aperture of valve is adjusted by the experience of people simultaneously, and the requirement to operating personnel is higher.2nd, work long hours by After pressure, sealing gasket meeting crimp bonds together valve cap with valve body, and exhaust passage is blocked when serious, causes valve cap failure. 3rd, when adjusting screw rod moves up, spring can take off, and when pushing again, spring may be inclined by pressure, inclined spring phenomenon occurs.
The content of the invention
For deficiencies of the prior art, it is an object of the invention to provide a kind of membrane pump with multi-functional exhaust Valve, this air bleeding valve can flexibly switch under a large amount of exhausts or three kinds of oil extraction, micro exhaust or oil extraction and closing states, and every kind of State can ensure functional reliability well.
In order to solve the above technical problems, present invention employs following technical scheme:
Membrane pump multifunctional exhaust valve, including valve body, adjusting screw rod and oil pipe;The valve of opening upwards is provided with valve body Body cavity, adjusting screw rod are connected with valve body cavity inner thread, and adjusting screw rod lower surface has exhaust clearance with valve body cavity bottom;In valve Body is provided with radial passage, and oil pipe is arranged on valve body and connected with radial passage;It is characterized in that:It is provided with valve body lower end face The joint installation cavity that Open Side Down, joint installation cavity are communicated by the axial passage at valve body center with valve body cavity;Joint installation cavity Joint is inside installed, connector center is provided with exhaust passage, and exhaust passage lower end is used to connect with hydraulic fluid chamber, exhaust passage upper end Oral area is provided with a valve ball, stage clip is provided between valve ball and valve body axial passage, valve ball is under stage clip active force by exhaust passage Port part is closed;
Big exhaust axial passage and small exhaust axial passage are provided with adjusting screw rod lower surface, is set simultaneously on adjusting screw rod There are big exhaust radial passage and small exhaust radial passage, it is big to be vented radial passage and small exhaust radial passage and valve body radial passage In identical height;Big exhaust axial passage connects with big exhaust radial passage, and small exhaust axial passage and small exhaust are radially logical Road connects;Small exhaust axial passage front end is shoulder hole structure, is provided with valve rod and screw in shoulder hole, screw thread is connected to rank Terraced orifice part is so that valve rod is enclosed in shoulder hole;The axial air flue of both ends insertion is provided with screw center, in valve rod periphery Axial notch is provided with, the facing groove communicated with the axial notch on its periphery is provided with the end face of valve rod both ends;Valve rod The facing groove of lower surface communicates with screw axial air flue.
Circumferentially there is phase difference in wherein big exhaust radial passage and small exhaust radial passage, phase difference is 180 °.
Adjusting screw rod is located at that outer end of valve body cavity and is provided with handle, passes through the rotatable adjusting screw rod of handle.
Adjusting screw rod and valve body cavity are the hierarchic structure of matching, and sealing O-ring is provided with cascaded surface.
Joint both ends have helicitic texture, and joint is installed cavity wall with joint by screw thread and is connected.
The valve rod both ends are respectively provided with chamfering structure.
The present invention can be automatically drained out the gas in membrane pump hydraulic fluid chamber, easy to operate, practical, according to different situations Following three kinds of functions can be achieved:
1st, a large amount of exhausts or oil extraction function:Adjusting screw rod is rotated, makes to be vented radial passage and valve body radial passage and oil greatly Pipe is connected, and is mainly used in fueling state;
2nd, micro exhaust or oil extraction function:Adjusting screw rod is rotated, makes small exhaust radial passage and valve body radial passage and oil Pipe is connected, and is mainly used in normal operating conditions;
3rd, closed mode:Adjusting screw rod is rotated, makes to be vented radial passage and small exhaust radial passage greatly with valve body radially Passage staggers, and is closed, oil or gas can not be automatically drained out, be mainly used in degassing function occur it is abnormal when.
This air bleeding valve can flexibly switch under a large amount of exhausts or three kinds of oil extraction, micro exhaust or oil extraction and closing states, And every kind of state can ensure functional reliability well, in the absence of in background technology spring partially, valve cap work failure, sealing Pad damages and sealed not death situation condition by pressure.Mark corresponding to three kinds of states of the present invention is clear and legible, it is only necessary to the position is turned to, Operating personnel are had no special requirements, what everyone operating result was just as, uniformity is good.In addition, the present invention is compared to existing The more closing function of structure, can close air bleeding valve when needed.
Brief description of the drawings
Fig. 1-existing exhaust structure schematic diagram.
Fig. 2-exhaust structure of the present invention schematic diagram.
Embodiment
The present invention is described in detail with reference to the accompanying drawings and detailed description.
Referring to Fig. 2, membrane pump multifunctional exhaust valve of the present invention, including valve body 1, adjusting screw rod 2 are can be seen that from figure With oil pipe 3;The valve body cavity of opening upwards is provided with valve body 1, adjusting screw rod 2 enters from top to bottom in valve body cavity and and valve body cavity Inner thread connects, and adjusting screw rod lower surface has exhaust clearance with valve body cavity bottom.For convenience of adjusting screw rod is rotated, spiral shell is adjusted Bar 2 is located at that outer end of valve body cavity and is provided with handle 4, can rotate adjusting screw rod easy and flexible by handle.Footpath is provided with valve body 1 To passage 5, oil pipe 3 is arranged on valve body 1 and connected with radial passage 5.The joint peace that Open Side Down is provided with the lower surface of valve body 1 It behave affectedly 6, joint installation cavity 6 is communicated by the axial passage 7 at valve body center with valve body cavity;Joint is installed in joint installation cavity 6 8, the center of joint 8 is provided with exhaust passage 9, and exhaust passage lower end is used to connect with hydraulic fluid chamber, and the upper end oral area of exhaust passage 9 is provided with One valve ball 10, stage clip 11 is provided between valve ball 10 and valve body axial passage 7, valve ball is under stage clip active force by exhaust passage upper end Oral area is closed.
Big exhaust axial passage 12 and small exhaust axial passage 13 are provided with the lower surface of adjusting screw rod 2, on adjusting screw rod 1 It is big to be vented radial passage 14 and small exhaust radial passage 15 simultaneously provided with big exhaust radial passage 14 and small exhaust radial passage 15 Identical height is in valve body radial passage 5;Big exhaust axial passage 12 connects with big exhaust radial passage 14, and small exhaust is axially Passage 13 connects with small exhaust radial passage 15.Small exhaust axial passage 13 front end is shoulder hole structure, and valve is provided with shoulder hole Post 16 and screw 17, screw thread are connected to ladder orifice part so that valve rod is enclosed in shoulder hole;It is provided with the center of screw 17 The axial air flue 18 of both ends insertion, is provided with axial notch on valve rod periphery(Actual is 4 in 90 ° of distributions), in valve rod Both ends end face is provided with the facing groove communicated with the axial notch on its periphery, and facing groove is to pass through center of circle cross Twice;The facing groove of valve rod lower surface communicates with screw axial air flue.Under the central axial air flue of valve body cavity, screw, valve rod Facing groove, valve rod periphery axial notch, valve rod upper surface groove, small exhaust axial passage 13 and small exhaust radial passage 15 It is sequentially communicated.When adjusting screw rod 2, which turns to small exhaust radial passage 15, to be connected with valve body radial passage 5, now micro exhaust Passage is fully open, when air pressure reaches certain value, you can automatic exhaust.By screw, valve rod upper surface and ladder can be adjusted The gap in bottom hole portion, gap length influence throughput.
The both ends of valve rod 16 are respectively provided with chamfering structure.It can so prevent valve rod both ends by screw or shoulder hole bottom surface Shut, so that the facing groove on the end face of valve rod both ends more reliably communicates with the groove on its periphery.
Big exhaust radial passage 14 and the small exhaust phase of radial passage 15 differ 180 °.In exhaust radial passage and oil pipe greatly Under on-state, it is only necessary to which rotating 180 ° can switch to small exhaust radial passage to be connected with oil pipe, that is, carry out 180 ° of back rotation just Switching can be facilitated between the two.When rotating 90 °, as closed mode.Respective identification is provided with valve body, identifies this air bleeding valve Three kinds of working conditions position, handle only turns to position corresponding to the mark, that is, shows to be in certain state.
Adjusting screw rod 2 and valve body cavity are the hierarchic structure of matching, and sealing O-ring 19 is provided with cascaded surface.So can be with Prevent by adjusting screw rod and valve interior wall faying face gas leak of the oil leakage.
The both ends of joint 8 are generally helicitic texture, and joint is installed cavity wall with joint by threaded one end and is connected, other end spiral shell Line makes joint be connected with cylinder body, so as to which joint exhaust passage lower end be connected with the hydraulic fluid chamber on cylinder body.Have in the middle part of joint The raised structures of ring-type, raised structures both ends form sealing surface, are provided with sealing gasket in sealing surface, make joint both ends and cylinder body and valve Body reliable sealing respectively.
Air bleeding valve bottom is provided with check valve, can be ball valve, or cone valve etc..Air bleeding valve can be to be threadedly coupled with pump, Or flange connection.
This exhaust valve operation principle:If gas be present in hydraulic fluid chamber, when hydraulic fluid chamber pressure be more than acting force of the spring and During valve ball gravity, air pressure pushes valve ball open automatically, joint exhaust passage is passed through joint installation cavity, the axial passage at valve body center Communicated with valve body cavity, if now big exhaust radial passage or small exhaust radial passage connect with valve body radial passage, from It is dynamic progress largely exhaust or micro exhaust, if greatly exhaust radial passage and it is small exhaust radial passage with valve body radial passage Stagger, be then closed, gas can not discharge, and be mainly used in using when degassing function occurs abnormal.
Above-mentioned three kinds of working conditions, can flexibly be switched by rotational handle different angle.
Finally illustrate, above-described embodiment is merely to illustrate technical scheme and unrestricted, although with reference to compared with The present invention is described in detail good embodiment, it will be understood by those within the art that, can be to the skill of the present invention Art scheme is modified or equivalent substitution, and without departing from the objective and scope of technical solution of the present invention, it all should cover at this Among the right of invention.

Claims (6)

1. membrane pump multifunctional exhaust valve, including valve body, adjusting screw rod and oil pipe;The valve body of opening upwards is provided with valve body Chamber, adjusting screw rod are connected with valve body cavity inner thread, and adjusting screw rod lower surface has exhaust clearance with valve body cavity bottom;In valve body Radial passage is provided with, oil pipe is arranged on valve body and connected with radial passage;It is characterized in that:It is provided with and opens in valve body lower end face The downward joint installation cavity of mouth, joint installation cavity are communicated by the axial passage at valve body center with valve body cavity;In joint installation cavity Joint is installed, connector center is provided with exhaust passage, and exhaust passage lower end is used to connect with hydraulic fluid chamber, exhaust passage upper port Portion is provided with a valve ball, stage clip is provided between valve ball and valve body axial passage, valve ball is under stage clip active force by exhaust passage upper end Oral area is closed;
Big exhaust axial passage and small exhaust axial passage are provided with adjusting screw rod lower surface, simultaneously provided with big on adjusting screw rod Radial passage and small exhaust radial passage are vented, big radial passage and the small exhaust radial passage of being vented is in valve body radial passage Identical height;Big exhaust axial passage connects with big exhaust radial passage, and small exhaust axial passage and small exhaust radial passage connect It is logical;Small exhaust axial passage front end is shoulder hole structure, is provided with valve rod and screw in shoulder hole, screw thread is connected to shoulder hole Oral area is so that valve rod is enclosed in shoulder hole;The axial air flue of both ends insertion is provided with screw center, is set on valve rod periphery There is axial notch, the facing groove communicated with the axial notch on its periphery is provided with the end face of valve rod both ends;Valve rod lower end The facing groove in face communicates with screw axial air flue.
2. membrane pump multifunctional exhaust valve according to claim 1, it is characterised in that:Big exhaust radial passage and float Circumferentially there is phase difference in gas radial passage, phase difference is 180 °.
3. membrane pump multifunctional exhaust valve according to claim 1, it is characterised in that:Adjusting screw rod is located at outside valve body cavity That end is provided with handle, passes through the rotatable adjusting screw rod of handle.
4. membrane pump multifunctional exhaust valve according to claim 1, it is characterised in that:Adjusting screw rod and valve body cavity are The hierarchic structure matched somebody with somebody, sealing O-ring is provided with cascaded surface.
5. membrane pump multifunctional exhaust valve according to claim 1, it is characterised in that:Joint both ends have screw thread knot Structure, joint are installed cavity wall with joint by screw thread and are connected.
6. membrane pump multifunctional exhaust valve according to claim 1, it is characterised in that:The valve rod both ends are respectively provided with down Corner structure.
CN201610746079.1A 2016-08-29 2016-08-29 Membrane pump multifunctional exhaust valve Active CN106194710B (en)

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Application Number Priority Date Filing Date Title
CN201610746079.1A CN106194710B (en) 2016-08-29 2016-08-29 Membrane pump multifunctional exhaust valve

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Application Number Priority Date Filing Date Title
CN201610746079.1A CN106194710B (en) 2016-08-29 2016-08-29 Membrane pump multifunctional exhaust valve

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CN106194710A CN106194710A (en) 2016-12-07
CN106194710B true CN106194710B (en) 2018-01-05

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2099086A (en) * 1981-04-22 1982-12-01 Maschf Augsburg Nuernberg Ag Fuel pump for I.C. engine
CN201180638Y (en) * 2008-04-24 2009-01-14 自贡大业高压容器有限责任公司 Liquid controlled reversing device of CNG substation hydraulic compressor
CN201372980Y (en) * 2009-02-17 2009-12-30 肇庆市志成气动有限公司 Pneumatic reversing valve
CN202326187U (en) * 2011-12-02 2012-07-11 重庆水泵厂有限责任公司 Mechanical automatic exhaust valve
CN205918581U (en) * 2016-08-29 2017-02-01 重庆水泵厂有限责任公司 Multi -functional discharge valve is used to diaphragm pump

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3576245B2 (en) * 1995-02-20 2004-10-13 株式会社フジキン Plunger pump
US6071097A (en) * 1997-08-29 2000-06-06 Oil-Rite Corporation Single-piece piston for use in a pneumatically-activated pump

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2099086A (en) * 1981-04-22 1982-12-01 Maschf Augsburg Nuernberg Ag Fuel pump for I.C. engine
CN201180638Y (en) * 2008-04-24 2009-01-14 自贡大业高压容器有限责任公司 Liquid controlled reversing device of CNG substation hydraulic compressor
CN201372980Y (en) * 2009-02-17 2009-12-30 肇庆市志成气动有限公司 Pneumatic reversing valve
CN202326187U (en) * 2011-12-02 2012-07-11 重庆水泵厂有限责任公司 Mechanical automatic exhaust valve
CN205918581U (en) * 2016-08-29 2017-02-01 重庆水泵厂有限责任公司 Multi -functional discharge valve is used to diaphragm pump

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