CN201288653Y - Pump head mechanism for large flow hydraulic barrier diaphragm metering pump - Google Patents
Pump head mechanism for large flow hydraulic barrier diaphragm metering pump Download PDFInfo
- Publication number
- CN201288653Y CN201288653Y CNU2008201869809U CN200820186980U CN201288653Y CN 201288653 Y CN201288653 Y CN 201288653Y CN U2008201869809 U CNU2008201869809 U CN U2008201869809U CN 200820186980 U CN200820186980 U CN 200820186980U CN 201288653 Y CN201288653 Y CN 201288653Y
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- Prior art keywords
- pump head
- outlet
- barrier film
- inlet
- protection plate
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- Expired - Fee Related
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Abstract
The utility model discloses a pump head mechanism of a large flow hydraulic diaphragm metering pump, comprising a liquid cylinder body, an inlet flange, an inlet check valve, a left diaphragm protection disk, a right diaphragm protection disk, a membrane, a pump head, an outlet check valve and an outlet flange. The left diaphragm protection disk is mounted in the liquid cylinder body, the right diaphragm protection disk is mounted in the pump head, the membrane is mounted between the left diaphragm protection disk and the right diaphragm protection disk, the outer margin of the membrane is compression fixed by the pump head and the liquid cylinder end face spigot, the outlet check valve is mounted at the outlet end of the pump head, the outlet flange is mounted on the outlet check valve, the inlet check valve is mounted at the inlet end of the pump head, the inlet flange is mounted on the inlet check valve, the outer surface of the left diaphragm protection disk is a conical surface, and the outer surface of the right diaphragm protection disk is also a conical surface. The oil supply side of the pump head mechanism has an obviously increased volume, thus ensuring the oil supply amount of each stroke. The fluid resistance is lowered, the fluid fully enters into the diaphragm cavity, therefore the metering accuracy of each stroke is guaranteed.
Description
Technical field
The utility model relates to the diaphragm metering pump field, specifically, relates to a kind of high-volume hydraulic diaphragm metering pump pump head mechanism.
Background technique
Present high-volume hydraulic diaphragm metering pump pump head mechanism, form by liquid cylinder, inlet flange, inlet one-way valve, left barrier film protection plate, right barrier film protection plate, diaphragm, pump head, outlet one-way valve and outlet(discharge) flange, left side barrier film protection plate is installed in the liquid cylinder, right barrier film protection plate is installed in the pump head, diaphragm is installed between left barrier film protection plate and the right barrier film protection plate, and outer cause pump head of diaphragm and liquid cylinder end face seam are fixed, and the barrier film side (inboard) of barrier film protection plate is a cambered surface, and outer side surface is the plane.The outer side surface of this barrier film protection plate is that the design on plane can make barrier film side fuel delivery reduce, and resistance increases.Because high-capacity pump requires each fuel delivery very big, thereby the design that is the plane of this barrier film protection plate outer side surface is difficult to satisfy the fuel delivery of each stroke.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of and can guarantee each stroke fuel delivery, improves the diaphragm high-volume hydraulic diaphragm metering pump pump head mechanism in working life.
The technological scheme that realizes above-mentioned purpose is: a kind of high-volume hydraulic diaphragm metering pump pump head mechanism, by liquid cylinder, inlet flange, inlet one-way valve, left side barrier film protection plate, right barrier film protection plate, diaphragm, pump head, outlet one-way valve and outlet(discharge) flange are formed, left side barrier film protection plate is installed in the liquid cylinder, right barrier film protection plate is installed in the pump head, diaphragm is installed between left barrier film protection plate and the right barrier film protection plate, and outer cause pump head of diaphragm and liquid cylinder end face seam are fixed, the outlet one-way valve is installed in the outlet end of pump head, outlet(discharge) flange is installed on the outlet one-way valve, inlet one-way valve is installed in the entry end of pump head, inlet flange is installed on the inlet one-way valve, the outer side surface of left side barrier film protection plate is the conical surface, and the outer side surface of right barrier film protection plate also is the conical surface.
Further, inlet one-way valve and outlet one-way valve are formed by valve seat, valve plate, spool, spring, spring press-cover, valve body, nut and compression spring, spool is threaded with valve seat, valve plate covers on valve seat, spring housing is contained on the spool, and the upper end of spring is against on the spring press-cover, the lower end is against on the valve plate, spring press-cover is enclosed within on the spool, compression spring is enclosed within on the spool, and compression spring is between nut and spring press-cover, and nut is spun on the spool and by compression spring and props up spring press-cover, and the wall of valve body bloats outward.In addition, the valve body wall of one-way valve of the prior art is cylindrical, because the each stroke flow of high-capacity pump is very big, can cause flow velocity too high, and noise is big during one-way valve work, and the valve wall is hit greatly.
After adopting technique scheme, the outer side surface of left barrier film protection plate is the conical surface, and the outer side surface of right barrier film protection plate also is the conical surface, and outer side surface makes into to make fuel feeding side volume obviously increase behind the conical surface, so just guaranteed the fuel delivery of each stroke.Another effect is that the resistance of fluid on the conical surface is significantly less than the plane, can make oily acceleration pressure to diaphragm like this, media cavity one side also is same reason, has so just guaranteed that the each stroke fluid on both sides of diaphragm can evenly work fast, also make the diaphragm pressurized even simultaneously, improve the working life of diaphragm.Because fluid resistance reduces, fluid fully enters diaphragm cavity, so guaranteed the measuring accuracy of each stroke simultaneously.
After adopting further technological scheme, the wall of valve body goes out toward silent partners, makes the intermediate cavity of valve body increase, and the spot size that is connected with pump head does not increase, because intermediate cavity enlarges, each stroke flow velocity is slowed down like this, reduce the impact of fluid, reduce noise valve member.Owing to do not increase with pump head connection part size, just need not increase the width of pump head, saved the required material of pump head.
Description of drawings
Fig. 1 is a sectional structure schematic representation of the present utility model;
Fig. 2 is the sectional structure schematic representation of left barrier film protection plate of the present utility model;
Fig. 3 is the sectional structure schematic representation of right barrier film protection plate of the present utility model;
Fig. 4 is the sectional structure schematic representation of one-way valve of the present utility model.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.
Shown in Fig. 1～3, a kind of high-volume hydraulic diaphragm metering pump pump head mechanism, by liquid cylinder 1, inlet flange 2, inlet one-way valve 3, left side barrier film protection plate 5, right barrier film protection plate 4, diaphragm 6, pump head 7, outlet one-way valve 8 and outlet(discharge) flange 9 are formed, left side barrier film protection plate 5 is installed in the liquid cylinder 1, right barrier film protection plate 4 is installed in the pump head 7, diaphragm 6 is installed between left barrier film protection plate 5 and the right barrier film protection plate 4, and diaphragm 6 outer cause pump heads 7 and liquid cylinder 1 end face seam are fixed, outlet one-way valve 8 is installed in the outlet end of pump head 7, outlet(discharge) flange 9 is installed on the outlet one-way valve 8, inlet one-way valve 3 is installed in the entry end of pump head 7, inlet flange 2 is installed on the inlet one-way valve 3, the outer side surface 5-1 of left side barrier film protection plate 5 is the conical surface, and the outer side surface 4-1 of right barrier film protection plate 4 also is the conical surface.
As shown in Figure 4, inlet one-way valve 3 and outlet one-way valve 8 are by valve seat 10, valve plate 11, spool 13, spring 12, spring press-cover 14, valve body 15, nut 17 and compression spring 16 are formed, spool 13 is threaded with valve seat 10, valve plate 11 covers on valve seat 10, spring 12 is sleeved on the spool 13, and the upper end of spring 12 is against on the spring press-cover 14, the lower end is against on the valve plate 11, spring press-cover 14 is enclosed within on the spool 13, compression spring 16 is enclosed within on the spool, and compression spring 16 is between nut 17 and spring press-cover 14, and nut 17 is spun on the spool 13 and by compression spring 16 and props up spring press-cover 14, and the wall of valve body 15 bloats outward.
Claims (2)
1, a kind of high-volume hydraulic diaphragm metering pump pump head mechanism, by liquid cylinder (1), inlet flange (2), inlet one-way valve (3), left side barrier film protection plate (5), right barrier film protection plate (4), diaphragm (6), pump head (7), outlet one-way valve (8) and outlet(discharge) flange (9) are formed, left side barrier film protection plate (5) is installed in the liquid cylinder (1), right barrier film protection plate (4) is installed in the pump head (7), diaphragm (6) is installed between left barrier film protection plate (5) and the right barrier film protection plate (4), and outer cause pump head of diaphragm (6) (7) and liquid cylinder (1) end face seam are fixed, outlet one-way valve (8) is installed in the outlet end of pump head (7), outlet(discharge) flange (9) is installed on the outlet one-way valve (8), inlet one-way valve (3) is installed in the entry end of pump head (7), inlet flange (2) is installed on the inlet one-way valve (3), it is characterized in that: the outer side surface (5-1) of left barrier film protection plate (5) is the conical surface, and the outer side surface (4-1) of right barrier film protection plate (4) also is the conical surface.
2, high-volume hydraulic diaphragm metering pump pump head according to claim 1 mechanism, it is characterized in that: inlet one-way valve (3) and outlet one-way valve (8) are by valve seat (10), valve plate (11), spool (13), spring (12), spring press-cover (14), valve body (15), nut (17) and compression spring (16) are formed, spool (13) is threaded with valve seat (10), valve plate (11) covers on valve seat (10), spring (12) is sleeved on the spool (13), and the upper end of spring (12) is against on the spring press-cover (14), the lower end is against on the valve plate (11), spring press-cover (14) is enclosed within on the spool (13), compression spring (16) is enclosed within on the spool, and compression spring (16) is positioned between nut (17) and the spring press-cover (14), nut (17) is spun on spool (13) and upward and by compression spring (16) props up spring press-cover (14), and the wall of valve body (15) bloats outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201869809U CN201288653Y (en) | 2008-09-18 | 2008-09-18 | Pump head mechanism for large flow hydraulic barrier diaphragm metering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201869809U CN201288653Y (en) | 2008-09-18 | 2008-09-18 | Pump head mechanism for large flow hydraulic barrier diaphragm metering pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201288653Y true CN201288653Y (en) | 2009-08-12 |
Family
ID=40980335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201869809U Expired - Fee Related CN201288653Y (en) | 2008-09-18 | 2008-09-18 | Pump head mechanism for large flow hydraulic barrier diaphragm metering pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201288653Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561296A (en) * | 2018-01-05 | 2018-09-21 | 米顿罗工业设备（上海）有限公司 | A kind of diaphragm pump suitable for high inlet pressure with distribution pipeline |
| CN113007075A (en) * | 2019-12-19 | 2021-06-22 | 卓越有限公司 | Metering pump with metering diaphragm |
-
2008
- 2008-09-18 CN CNU2008201869809U patent/CN201288653Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561296A (en) * | 2018-01-05 | 2018-09-21 | 米顿罗工业设备（上海）有限公司 | A kind of diaphragm pump suitable for high inlet pressure with distribution pipeline |
| CN113007075A (en) * | 2019-12-19 | 2021-06-22 | 卓越有限公司 | Metering pump with metering diaphragm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090812 Termination date: 20140918 |
|
| EXPY | Termination of patent right or utility model |