CN106194710A - Membrane pump multifunctional exhaust valve - Google Patents
Membrane pump multifunctional exhaust valve Download PDFInfo
- Publication number
- CN106194710A CN106194710A CN201610746079.1A CN201610746079A CN106194710A CN 106194710 A CN106194710 A CN 106194710A CN 201610746079 A CN201610746079 A CN 201610746079A CN 106194710 A CN106194710 A CN 106194710A
- Authority
- CN
- China
- Prior art keywords
- valve
- aerofluxus
- valve body
- passage
- axial
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/04—Draining
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/06—Venting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
- F04B53/1002—Ball valves
Abstract
The invention discloses a kind of membrane pump multifunctional exhaust valve, adjusting screw rod is threadeded with valve body cavity wall, and oil piping connects on valve body and with valve body radial passage.It is provided with joint installation cavity in valve body lower end face and is communicated with valve body chamber by axial passage；Connector center is provided with exhaust passage, and upper end, exhaust passage oral area is provided with valve ball, is provided with stage clip between valve ball and valve body axial passage.Being provided with size aerofluxus axial passage and size aerofluxus radial passage on adjusting screw rod, size aerofluxus radial passage and valve body radial passage are in identical height.Little aerofluxus axial passage front end is shoulder hole, is provided with valve rod and screw, is provided with axial air flue at screw center, be provided with axial notch on valve rod periphery in shoulder hole, is provided with, on the end face of valve rod two ends, the facing groove communicated with axial notch.This air bleeding valve can switch under a large amount of aerofluxuss, trace aerofluxus and three kinds of states of closedown flexibly, and every kind of state can ensure functional reliability well.
Description
Technical field
The present invention relates to pumped (conveying) medium membrane pump, be specifically related to a kind of membrane pump multifunctional exhaust valve, belong to barrier film
Pump technical field.
Background technology
Membrane pump is the type of a kind of common pump, and barrier film is the vitals of this pump, and barrier film side is hydraulic fluid chamber, separately
Side is medium chamber.The membrane pump reciprocating motion of the pistons by hydraulic fluid chamber side, drives barrier film forward end or rear end to move,
Thus drive the inlet valve of barrier film opposite side fluid end and dump valve alternately to open and close, thus realize reciprocal feed liquor and row
Liquid, is achieved in medium conveying.The hydraulic fluid chamber of membrane pump is provided with air bleeding valve, when hydraulic fluid chamber occurs gas, i.e.
Can be automatically drained out by air bleeding valve.When normally working, in hydraulic fluid chamber, gas is little, but adds oily when being in hydraulic fluid chamber
During state, then need a large amount of aerofluxus, when pump is in stopped status, need to close air bleeding valve.Therefore air bleeding valve need to meet this three
Plant 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 adjusting screw rod 8 structure
Becoming, be provided with the valve body chamber 5 of opening upwards in valve body, valve cap is located at lower end, valve body chamber, is provided with opening upwards in valve cap
Valve cap chamber 13, valve rod 3 is arranged on valve cap intracavity.Adjusting screw rod screws in valve body chamber from top to bottom and connects with valve body cavity wall screw thread
Connecing, 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, at adjusting screw rod outer wall and valve
Being provided with ring-type aerofluxus circuit 10 between body cavity walls, aerofluxus circuit connects with steam vent.Oil piping is on valve body and passes through
Interface channel on valve body connects with aerofluxus circuit.It is provided with bullet between valve rod upper surface and adjusting screw rod lower surface cavity bottom
Spring 11.Adjusting screw rod is provided with handle 9, adjusting screw rod can be made to rotate by handle.It is provided with between bottom valve cap and valve body chamber
Sealing gasket 6, has through hole in the middle of sealing gasket；Being provided with exhaust passage on valve body, one end, exhaust passage communicates with hydraulic fluid chamber, another
End is communicated with valve cap chamber by sealing gasket central through hole.
During normal exhaust, making adjusting screw rod move down by handle, and then compressed by sealing gasket by valve cap, now gas is only
The axial passage on exhaust passage, sealing gasket central through hole, valve rod sidewall can be passed sequentially through and enter the sky of adjusting screw rod lower surface
In chamber, and discharged by the interface channel on rod radial air vent, aerofluxus circuit, valve body and oil pipe.
When needing a large amount of aerofluxus, making to move on adjusting screw rod by handle, thus unclamp sealing gasket, now gas passes sequentially through
Axial passage on exhaust passage, sealing gasket central through hole, valve cap sidewall enters in the cavity of adjusting screw rod lower surface, and passes through
Interface channel and oil pipe on rod radial air vent, aerofluxus circuit, valve body are discharged.
Said structure air bleeding valve is primarily present following deficiency: 1, (as inclined in washed away rear oil drain quantity for a long time when valve occurs abnormal
Greatly), it is impossible to shut；The aperture of valve is by the experience regulation of people simultaneously, and the requirement to operator is higher.2, it is subject to working long hours
After pressure, valve cap can be bonded together by sealing gasket with valve body in crimp, blocks exhaust passage, cause valve cap malfunctioning time serious.
When 3, moving on adjusting screw rod, spring can take off, and when pressing down, spring inclined spring phenomenon may occur by pressure partially.
Summary of the invention
For deficiencies of the prior art, it is an object of the invention to provide a kind of multi-functional aerofluxus of membrane pump
Valve, this air bleeding valve can switch under a large amount of aerofluxuss or oil extraction, trace aerofluxus or oil extraction and three kinds of states of closedown flexibly, and every kind
State can ensure functional reliability well.
For solving above-mentioned technical problem, present invention employs techniques below scheme:
Membrane pump multifunctional exhaust valve, including valve body, adjusting screw rod and oil pipe；The valve body of opening upwards it is provided with in valve body
Chamber, adjusting screw rod is threadeded with valve body cavity wall, there is exhaust clearance bottom adjusting screw rod lower surface and valve body chamber；At valve body
Being provided with radial passage, oil piping connects on valve body and with radial passage；It is characterized in that: be provided with out in valve body lower end face
The joint installation cavity that mouth is downward, joint installation cavity is communicated with valve body chamber by the axial passage at valve body center；In joint installation cavity
Being provided with joint, connector center is provided with exhaust passage, and lower end, exhaust passage is used for connecting with hydraulic fluid chamber, exhaust passage upper port
Portion is provided with a valve ball, is provided with stage clip between valve ball and valve body axial passage, valve ball under stage clip active force by upper end, exhaust passage
Oral area is closed；
It is provided with big aerofluxus axial passage and little aerofluxus axial passage in adjusting screw rod lower surface, adjusting screw rod is simultaneously provided with big
Aerofluxus radial passage and little aerofluxus radial passage, big aerofluxus radial passage and little aerofluxus radial passage are in valve body radial passage
Identical height；Big aerofluxus axial passage connects with big aerofluxus radial passage, and little aerofluxus axial passage and little aerofluxus radial passage are even
Logical；Little aerofluxus axial passage front end is shoulder hole structure, is provided with valve rod and screw in shoulder hole, and screw thread is connected to shoulder hole
Oral area is to be enclosed in valve rod in shoulder hole；It is provided with the axial air flue that two ends are through at screw center, valve rod periphery sets
There is axial notch, valve rod two ends end face is provided with the facing groove communicated with the axial notch on its periphery；Valve rod lower end
The facing groove in face communicates with screw axial air flue.
Circumferentially there is phase contrast in the biggest aerofluxus radial passage and little aerofluxus radial passage, phase contrast is 180 °.
Adjusting screw rod is positioned at that end outside valve body chamber and is provided with handle, by the rotatable adjusting screw rod of handle.
Adjusting screw rod and valve body chamber are the hierarchic structure of coupling, are provided with sealing O at cascaded surface.
Joint two ends have helicitic texture, and joint is connected with joint installation cavity inwall by screw thread.
Described valve rod two 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
Can realize following three kinds of functions:
1, a large amount of aerofluxuss or oil extraction function: rotate adjusting screw rod, make big aerofluxus radial passage connect with valve body radial passage and oil pipe
Logical, it is mainly used in fueling state；
2, trace aerofluxus or oil extraction function: rotate adjusting screw rod, make little aerofluxus radial passage connect with valve body radial passage and oil pipe
Logical, it is mainly used in normal operating conditions；
3, closed mode: rotate adjusting screw rod, make big aerofluxus radial passage and little aerofluxus radial passage all with valve body radial passage
Staggering, be closed, oil or gas all can not be automatically drained out, when being mainly used in degassing function appearance exception.
This air bleeding valve can switch under a large amount of aerofluxuss or oil extraction, trace aerofluxus or oil extraction and three kinds of states of closedown flexibly,
And every kind of state can ensure functional reliability well, do not deposit spring in the introduction partially, valve cap work is malfunctioning, seal
Pad damages and seals 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 turn to this position,
Having no special requirements operator, everyone operating result is just as, and concordance is good.It addition, the present invention compares existing
Closing function more than structure, can close air bleeding valve when needed.
Accompanying drawing explanation
Fig. 1-existing exhaust structure schematic diagram.
Fig. 2-exhaust structure schematic diagram of the present invention.
Detailed description of the invention
The present invention is described in detail with detailed description of the invention below in conjunction with the accompanying drawings.
See Fig. 2, it can be seen that membrane pump multifunctional exhaust valve of the present invention from figure, including valve body 1, adjusting screw rod 2
With oil pipe 3；In valve body 1, be provided with the valve body chamber of opening upwards, adjusting screw rod 2 enter from top to bottom valve body intracavity and with valve body chamber
Inner thread connects, and there is exhaust clearance bottom adjusting screw rod lower surface and valve body chamber.Rotate adjusting screw rod for convenience, regulate spiral shell
Bar 2 is positioned at that end outside valve body chamber and is provided with handle 4, adjusting screw rod easy and flexible can be made to rotate by handle.Valve body 1 is provided with footpath
To passage 5, oil pipe 3 is arranged on valve body 1 and connects with radial passage 5.The joint peace that Open Side Down it is provided with in valve body 1 lower surface
Behaveing affectedly 6, joint installation cavity 6 is communicated with valve body chamber by the axial passage 7 at valve body center；In joint installation cavity 6, joint is installed
8, joint 8 center is provided with exhaust passage 9, and lower end, exhaust passage is for connecting with hydraulic fluid chamber, and upper end, exhaust passage 9 oral area is provided with
One valve ball 10, is provided with stage clip 11 between valve ball 10 and valve body axial passage 7, valve ball under stage clip active force by upper end, exhaust passage
Oral area is closed.
Big aerofluxus axial passage 12 and little aerofluxus axial passage 13 it is provided with, on adjusting screw rod 1 in adjusting screw rod 2 lower surface
It is simultaneously provided with big aerofluxus radial passage 14 and little aerofluxus radial passage 15, big aerofluxus radial passage 14 and little aerofluxus radial passage 15
It is in identical height with valve body radial passage 5；Big aerofluxus axial passage 12 connects with big aerofluxus radial passage 14, and little aerofluxus is axial
Passage 13 connects with little aerofluxus radial passage 15.Little aerofluxus axial passage 13 front end is shoulder hole structure, is provided with valve in shoulder hole
Post 16 and screw 17, screw thread is connected to shoulder hole oral area to be enclosed in shoulder hole by valve rod；It is provided with at screw 17 center
The axial air flue 18 that two ends are through, is provided with axial notch (actual for 4 in 90 ° of distributions), at valve rod on valve rod periphery
Two ends end face is provided with the facing groove communicated with the axial notch on its periphery, and facing groove is by center of circle cross
Twice；The facing groove of valve rod lower surface communicates with screw axial air flue.Under valve body chamber, the central axial air flue of screw, valve rod
Facing groove, valve rod periphery axial notch, valve rod upper surface groove, little aerofluxus axial passage 13 and little aerofluxus radial passage 15
It is sequentially communicated.When adjusting screw rod 2 turn to little aerofluxus radial passage 15 connect with valve body radial passage 5 time, now trace aerofluxus
Passage is fully open, when air pressure reaches certain value, and can automatic aerofluxus.By screw, valve rod upper surface and ladder can be regulated
Gap bottom hole, gap length affects ventilation.
Described valve rod 16 two ends are respectively provided with chamfering structure.So it is possible to prevent valve rod two ends by screw or shoulder hole bottom surface
Shut, so that the facing groove on the end face of valve rod two ends communicates more reliably with the groove on its periphery.
Big aerofluxus radial passage 14 and little aerofluxus radial passage 15 phase 180 °.At big aerofluxus radial passage and oil pipe
Under on-state, it is only necessary to rotate 180 ° and little aerofluxus radial passage can be switched to connect with oil pipe, just i.e. carry out back rotation 180 °
Switching can be facilitated between the two.When rotating 90 °, it is closed mode.Valve body is provided with respective identification, identifies this air bleeding valve
The position of three kinds of duties, handle only turns to position corresponding to this mark, i.e. shows to be in certain state.
Adjusting screw rod 2 and valve body chamber are the hierarchic structure of coupling, are provided with sealing O 19 at cascaded surface.The most permissible
Prevent by adjusting screw rod and valve interior wall faying face gas leak of the oil leakage.
Joint 8 two ends are generally helicitic texture, and joint is connected with joint installation cavity inwall by threaded one end, other end spiral shell
Stricture of vagina makes joint be connected with cylinder body, thus is connected with the hydraulic fluid chamber on cylinder body lower end, joint exhaust passage.Have in the middle part of joint
Ring-type raised structures, raised structures two ends constitute sealing surface, are provided with sealing gasket at sealing surface, make joint two ends and cylinder body and valve
Body reliably seals respectively.
Air bleeding valve bottom is provided with check valve, can be ball valve, it is possible to for cone valve etc..Air bleeding valve can be to threaded with pump,
It is alternatively Flange joint.
This exhaust valve operation principle: if hydraulic fluid chamber exists gas, when hydraulic fluid chamber pressure more than acting force of the spring and
During valve ball gravity, valve ball is pushed open by air pressure automatically, makes joint exhaust passage by joint installation cavity, the axial passage at valve body center
Communicate with valve body chamber, if the biggest aerofluxus radial passage or little aerofluxus radial passage connect with valve body radial passage, then certainly
Dynamic carry out a large amount of aerofluxus or trace aerofluxus, if big aerofluxus radial passage and little aerofluxus radial passage all with valve body radial passage
Staggering, be then closed, gas can not be discharged, and is mainly used in using when degassing function occurs abnormal.
Above-mentioned three kinds of duties, can be switched flexibly by turning handle different angles.
Finally illustrating, above-described embodiment is merely to illustrate technical scheme and unrestricted, although with reference to relatively
The present invention has been described in detail by 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, and without deviating from objective and the scope of technical solution of the present invention, it all should be contained at this
In the middle of 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 it is provided with in valve body
Chamber, adjusting screw rod is threadeded with valve body cavity wall, there is exhaust clearance bottom adjusting screw rod lower surface and valve body chamber；At valve body
Being provided with radial passage, oil piping connects on valve body and with radial passage；It is characterized in that: be provided with out in valve body lower end face
The joint installation cavity that mouth is downward, joint installation cavity is communicated with valve body chamber by the axial passage at valve body center；In joint installation cavity
Being provided with joint, connector center is provided with exhaust passage, and lower end, exhaust passage is used for connecting with hydraulic fluid chamber, exhaust passage upper port
Portion is provided with a valve ball, is provided with stage clip between valve ball and valve body axial passage, valve ball under stage clip active force by upper end, exhaust passage
Oral area is closed；
It is provided with big aerofluxus axial passage and little aerofluxus axial passage in adjusting screw rod lower surface, adjusting screw rod is simultaneously provided with big
Aerofluxus radial passage and little aerofluxus radial passage, big aerofluxus radial passage and little aerofluxus radial passage are in valve body radial passage
Identical height；Big aerofluxus axial passage connects with big aerofluxus radial passage, and little aerofluxus axial passage and little aerofluxus radial passage are even
Logical；Little aerofluxus axial passage front end is shoulder hole structure, is provided with valve rod and screw in shoulder hole, and screw thread is connected to shoulder hole
Oral area is to be enclosed in valve rod in shoulder hole；It is provided with the axial air flue that two ends are through at screw center, valve rod periphery sets
There is axial notch, valve rod two ends end face is provided with the facing groove communicated with the axial notch on its periphery；Valve rod lower end
The facing groove in face communicates with screw axial air flue.
Membrane pump multifunctional exhaust valve the most according to claim 1, it is characterised in that: big aerofluxus radial passage and float
Circumferentially there is phase contrast in gas radial passage, phase contrast is 180 °.
Membrane pump multifunctional exhaust valve the most according to claim 1, it is characterised in that: adjusting screw rod is positioned at outside valve body chamber
That end is provided with handle, by the rotatable adjusting screw rod of handle.
Membrane pump multifunctional exhaust valve the most according to claim 1, it is characterised in that: adjusting screw rod and valve body chamber are
The hierarchic structure joined, is provided with sealing O at cascaded surface.
Membrane pump multifunctional exhaust valve the most according to claim 1, it is characterised in that: joint two ends have screw thread knot
Structure, joint is connected with joint installation cavity inwall by screw thread.
Membrane pump multifunctional exhaust valve the most according to claim 1, it is characterised in that: described valve rod two ends are respectively provided with down
Corner structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610746079.1A CN106194710B (en) | 2016-08-29 | 2016-08-29 | Membrane pump multifunctional exhaust valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610746079.1A CN106194710B (en) | 2016-08-29 | 2016-08-29 | Membrane pump multifunctional exhaust valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106194710A true CN106194710A (en) | 2016-12-07 |
| CN106194710B CN106194710B (en) | 2018-01-05 |
Family
ID=57527373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610746079.1A Active CN106194710B (en) | 2016-08-29 | 2016-08-29 | Membrane pump multifunctional exhaust valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106194710B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109630391A (en) * | 2018-12-17 | 2019-04-16 | 国家电网有限公司 | A kind of adjustable throttling set that can reduce fluidised form disturbance |
Citations (7)
| 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 |
| JPH08226378A (en) * | 1995-02-20 | 1996-09-03 | Fujikin:Kk | Plunger pump |
| US6071097A (en) * | 1997-08-29 | 2000-06-06 | Oil-Rite Corporation | Single-piece piston for use in a pneumatically-activated pump |
| 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 |
-
2016
- 2016-08-29 CN CN201610746079.1A patent/CN106194710B/en active Active
Patent Citations (7)
| 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 |
| JPH08226378A (en) * | 1995-02-20 | 1996-09-03 | Fujikin:Kk | Plunger pump |
| US6071097A (en) * | 1997-08-29 | 2000-06-06 | Oil-Rite Corporation | Single-piece piston for use in a pneumatically-activated pump |
| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109630391A (en) * | 2018-12-17 | 2019-04-16 | 国家电网有限公司 | A kind of adjustable throttling set that can reduce fluidised form disturbance |
| CN109630391B (en) * | 2018-12-17 | 2023-11-21 | 国家电网有限公司 | Adjustable throttling device capable of reducing flow disturbance |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106194710B (en) | 2018-01-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103038520A (en) | Time-delay valve | |
| CN2426550Y (en) | Auto-control valve for deep well pump | |
| CN109915338A (en) | A kind of double acting reciprocating pump linkage drainage system | |
| CN106194710A (en) | Membrane pump multifunctional exhaust valve | |
| CN205918581U (en) | Multi -functional discharge valve is used to diaphragm pump | |
| CN205207804U (en) | A unilateral control valve for plunger pump | |
| CN208058051U (en) | One kind is drained the oil valve sealing means | |
| CN205805898U (en) | The fluid end of high pressure reciprocating pump | |
| CN208416914U (en) | High pressure liquid housing structure and Vertical Combination valve group | |
| CN203463278U (en) | Combination valve | |
| CN205715844U (en) | A kind of making-up air device of backflow preventer | |
| CN209444480U (en) | A kind of fuel filter, fuel filter assembly and engine assembly | |
| CN105065355B (en) | A kind of machinery-open type check valve being applied on two grades of sequential telescopic oil cylinders | |
| CN103486019B (en) | Combination brake switch and proporting | |
| CN208885241U (en) | A kind of ball-throwing type fixed valve | |
| CN210637557U (en) | Exhaust valve assembly for automatic exhaust valve and diaphragm pump | |
| CN110360095A (en) | Plunger assembly and plunger pump with the component | |
| CN216478952U (en) | Quick oil drain valve | |
| CN214197407U (en) | Integral double-blocking double-row ball discharging valve | |
| CN110608300A (en) | One-way interface gas circuit replacing device | |
| CN208330279U (en) | A kind of kelly bar plash proof valve | |
| CN205136688U (en) | Low resistance backflow preventer | |
| CN217927271U (en) | Prevent leaking subassembly suitable for 65 mechanical valve output oil mouth | |
| CN209597806U (en) | Pipe cleans serving mechanism | |
| CN104265674B (en) | Pump automatic exhaust device and this pump, water pump, numerically controlled intelligent pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |