CN100427760C - Hydraulic oil cavity fast emptying structure for metering pump - Google Patents
Hydraulic oil cavity fast emptying structure for metering pump Download PDFInfo
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- CN100427760C CN100427760C CNB2005100613656A CN200510061365A CN100427760C CN 100427760 C CN100427760 C CN 100427760C CN B2005100613656 A CNB2005100613656 A CN B2005100613656A CN 200510061365 A CN200510061365 A CN 200510061365A CN 100427760 C CN100427760 C CN 100427760C
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- screw
- emptying
- hydraulic oil
- metering pump
- fishplate bar
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Abstract
The present invention discloses a device of a pump, which aims to provide a fast emptying structure for a hydraulic oil cavity of a metering pump. The device of the present invention comprises a connecting plate assembly of a hydraulic oil loop and an emptying oil cup assembly, wherein the connecting plate assembly of the hydraulic oil loop comprises a connecting plate with an oil circuit channel, a three-way screw and an emptying screw; the emptying oil cup assembly comprises an oil cup and a hollow compression screw connected to the oil cup, and the compression screw is provided with external threads consistent with those of the emptying screw and can be screwed to the top of the three-way screw. The device of the present invention conducts technological innovation to the original products and greatly simplifies the operating programs, and can fast discharge air in the hydraulic oil cavity of the hydraulic metering pump.
Description
Technical field
The present invention relates to a kind of device of pump.More particularly, the present invention relates to a kind of hydraulic oil cavity fast emptying structure for metering pump.
Background technique
Metering pump is widely used in occasions such as chemical industry, oil refining, pharmacy, electric power, papermaking, food, town water supply, industrial water, environmental protection.Metering pump belongs to a kind of of displacement pump, divides plunger pump and diaphragm pump two big classes, and diaphragm pump can be subdivided into hydraulic type diaphragm pump and Machinery Diaphragm Pump.The hydraulic type diaphragm pump can be divided into metal diaphragm metering pump and nonmetal diaphragm metering pump again because of diaphragm material difference, and the product of domestic and international market use at present mainly is non-metal diaphragm metering pump.The main feature of metering pump is an accurate measurement, delivery pressure height, but flow step-less adjustment.The plunger type metering pump main feature be simple in structure, delivery pressure is high, but easily leak.Hydraulic type diaphragm metering pump main feature is that structure is complicated, and good airproof performance does not have and leaks, thus be widely used in poisonous, burn into is inflammable, occasion such as explosive.
During hydraulic type diaphragm pump proper functioning, be full of hydraulic oil in the hydraulic pressure cavity, do not allow to contain air.Containing little air can cause flow inaccurate.When air content is excessive, can cause the defeated not outflow of metering pump.Metering pump must drain the air in the oil pocket earlier, and be full of hydraulic oil when Installation and Debugging.
The subject matter that existing structure discharged air program exists is:
One, program is loaded down with trivial details, time and effort consuming;
1, unloads pressure release exhaust two valve group return tubes, end cap, take out adjusting screw, spring seat, spring, spool successively, will fill with hydraulic oil in the two valve group valve bodies.
2, Metering Pump Stroke is transferred to range, unloads metering pump motor ventilating fan case,, make the to-and-fro motion of metering pump plunger with hand rotary electric machine blast fan.
3, with the plunger to-and-fro motion, the air in the hydraulic pressure cavity can constantly be discharged by pressure release exhaust two valve groups, and replenishes the hydraulic oil that lacks, until the air emptying.
Two, the pressure release of every pump, exhaust two valve groups all are to adjust the good berth parameter under instrument monitoring when dispatching from the factory.Utilize the said method emptying easily to cause pressure release, exhaust two valve group performances to reduce, influence the measuring accuracy of metering pump.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, a kind of hydraulic oil cavity fast emptying structure for metering pump is provided.
Hydraulic oil cavity fast emptying structure for metering pump among the present invention comprises hydraulic oil circuit fishplate bar assembly and emptying lubricating cup assembly two-part; Hydraulic oil circuit fishplate bar assembly comprises fishplate bar, threeway screw and the emptying screw that has asphalt channel, the sealing of emptying screw is bolted in threeway screw top, the threeway screw runs through fishplate bar, fishplate bar can be fixed in the metering pump cylinder body and be communicated with hydraulic oil circuit, threeway screw side through hole can be connected and installed in pressure release exhaust two valve groups on the fishplate bar by the asphalt channel in the fishplate bar; Emptying lubricating cup assembly comprises lubricating cup and is connected in the housing screw of the hollow of lubricating cup that housing screw has the outside thread consistent with the emptying screw, can be bolted in threeway screw top.
Described threeway screw runs through fishplate bar and fishplate bar is fixed in metering pump cylinder body place is provided with sealing gasket.
Be provided with sealing gasket between the nut of described threeway screw and the fishplate bar.
Be provided with sealing gasket between described emptying screw and the threeway screw.
There is flexible pipe to connect between the lubricating cup of described emptying lubricating cup assembly and the housing screw of hollow.
Be to fix between described lubricating cup and the flexible pipe by the valve adapter of lubricating cup inside and the adapter locking nut of lubricating cup outside.
Described flexible pipe is provided with the equipment that dams.
The described equipment that dams be stopcock, needle value or hose clip wherein any one.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention has carried out technological innovation to existing product, has greatly simplified programmed sequence of operations, can realize the hydraulic fluid chamber discharged air of hydraulic metering pump rapidly.
Description of drawings
Fig. 1 is the general assembly drawing of metering pump pump head of the present invention
Fig. 2 is the general assembly drawing of prior art metering pump pump head
Fig. 3 is an emptying lubricating cup general assembly drawing of the present invention
Embodiment
With reference to the accompanying drawings, will describe the present invention below.
Hydraulic oil cavity fast emptying structure for metering pump comprises hydraulic oil circuit fishplate bar assembly and emptying lubricating cup assembly two-part among the present invention.
Hydraulic oil circuit fishplate bar assembly comprises fishplate bar 1, threeway screw 2 and the emptying screw 3 that has asphalt channel, 3 sealings of emptying screw are bolted in threeway screw 2 tops, threeway screw 2 runs through fishplate bar 1, fishplate bar 1 can be fixed in metering pump cylinder body 4 and be communicated with hydraulic oil circuit, threeway screw 2 side through holes can be connected and installed in pressure release exhaust two valve groups 5 on the fishplate bar by the asphalt channel in the fishplate bar 1.Threeway screw 2 runs through between the nut and fishplate bar 1 that fishplate bar 1 is fixed in fishplate bar 1 on metering pump cylinder body 4 places, threeway screw 2, be respectively equipped with sealing gasket between emptying screw 4 and the threeway screw 2.
Emptying lubricating cup assembly comprises lubricating cup 11 and is connected in the housing screw 13 of the hollow of lubricating cup 11 by flexible pipe 12, and housing screw 13 has the outside thread consistent with emptying screw 3, can be bolted in threeway screw 3 tops.Be to fix between lubricating cup 11 and the flexible pipe 12 by the valve adapter 14 of lubricating cup inside and the adapter locking nut 15 of lubricating cup outside.Flexible pipe is provided with the equipment stopcock 16 that dams, and also can select needle value, perhaps directly uses hose clip on flexible pipe.
The working principle of present embodiment is as follows:
1, emptying screw 3 is unloaded after, again the housing screw on the emptying lubricating cup 11 13 is screwed in the threeway screws 2, will inject an amount of hydraulic oil in the lubricating cup 11.
2, Metering Pump Stroke is transferred to maximum, open stopcock 16, start metering pump, along with the to-and-fro motion of plunger, the gas in the hydraulic pressure cavity will enter atmosphere by threeway screw 2, flexible pipe 12, stopcock 16, lubricating cup 11.
Being the emptying exhaust process when plunger moves ahead, is the repairing process when going behind the plunger, can finish emptying manipulation in about 10～20 seconds.
At last, it is also to be noted that what more than enumerate only is specific embodiments of the invention.Obviously, the invention is not restricted to above embodiment, many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought protection scope of the present invention.
Claims (8)
1, a kind of hydraulic oil cavity fast emptying structure for metering pump comprises hydraulic oil circuit fishplate bar assembly and emptying lubricating cup assembly two-part; Hydraulic oil circuit fishplate bar assembly comprises fishplate bar, threeway screw and the emptying screw that has asphalt channel, the sealing of emptying screw is bolted in threeway screw top, the threeway screw runs through fishplate bar, fishplate bar can be fixed in the metering pump cylinder body and be communicated with hydraulic oil circuit, threeway screw side through hole can be connected and installed in pressure release exhaust two valve groups on the fishplate bar by the asphalt channel in the fishplate bar; Emptying lubricating cup assembly comprises lubricating cup and is connected in the housing screw of the hollow of lubricating cup that housing screw has the outside thread consistent with the emptying screw, can be bolted in threeway screw top.
2, hydraulic oil cavity fast emptying structure for metering pump as claimed in claim 1 is characterized in that, described threeway screw runs through fishplate bar and fishplate bar is fixed in metering pump cylinder body place is provided with sealing gasket.
3, hydraulic oil cavity fast emptying structure for metering pump as claimed in claim 1 is characterized in that, is provided with sealing gasket between the nut of described threeway screw and the fishplate bar.
4, hydraulic oil cavity fast emptying structure for metering pump as claimed in claim 1 is characterized in that, is provided with sealing gasket between described emptying screw and the threeway screw.
5, hydraulic oil cavity fast emptying structure for metering pump as claimed in claim 1 is characterized in that, has flexible pipe to connect between the lubricating cup of described emptying lubricating cup assembly and the housing screw of hollow.
6, hydraulic oil cavity fast emptying structure for metering pump as claimed in claim 5 is characterized in that, between described lubricating cup and the flexible pipe is to fix by the valve adapter of lubricating cup inside and the adapter locking nut of lubricating cup outside.
7, hydraulic oil cavity fast emptying structure for metering pump as claimed in claim 5 is characterized in that, described flexible pipe is provided with the equipment that dams.
8, hydraulic oil cavity fast emptying structure for metering pump as claimed in claim 7 is characterized in that, the described equipment that dams be stopcock, needle value or hose clip wherein any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100613656A CN100427760C (en) | 2005-11-02 | 2005-11-02 | Hydraulic oil cavity fast emptying structure for metering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100613656A CN100427760C (en) | 2005-11-02 | 2005-11-02 | Hydraulic oil cavity fast emptying structure for metering pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1773117A CN1773117A (en) | 2006-05-17 |
| CN100427760C true CN100427760C (en) | 2008-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100613656A Active CN100427760C (en) | 2005-11-02 | 2005-11-02 | Hydraulic oil cavity fast emptying structure for metering pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN100427760C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112664437B (en) * | 2020-12-21 | 2022-11-25 | 戴勒普(杭州)流体控制科技有限公司 | Double-channel quick oil supplementing structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86201315U (en) * | 1986-03-09 | 1986-12-17 | 温州船用挂机厂 | Pneumatically (or hydraulically) driven plunger type metering pump |
| CN1350616A (en) * | 1999-05-11 | 2002-05-22 | 米尔顿·罗伊公司 | Multifunction valve |
| CN2546649Y (en) * | 2001-12-26 | 2003-04-23 | 上海化工研究院 | Diaphragm metering pump with oil supplying device |
| US6767189B2 (en) * | 2001-08-07 | 2004-07-27 | Horst Kleibrink | Method for the control and regulation of the oil pressure-gas pressure relationship of diaphragm compressors |
| CN2854139Y (en) * | 2005-11-02 | 2007-01-03 | 杭州大潮泵业制造有限公司 | Quick air-discharge structure for hydraulic oil cavity of metering pump |
-
2005
- 2005-11-02 CN CNB2005100613656A patent/CN100427760C/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86201315U (en) * | 1986-03-09 | 1986-12-17 | 温州船用挂机厂 | Pneumatically (or hydraulically) driven plunger type metering pump |
| CN1350616A (en) * | 1999-05-11 | 2002-05-22 | 米尔顿·罗伊公司 | Multifunction valve |
| US6767189B2 (en) * | 2001-08-07 | 2004-07-27 | Horst Kleibrink | Method for the control and regulation of the oil pressure-gas pressure relationship of diaphragm compressors |
| CN2546649Y (en) * | 2001-12-26 | 2003-04-23 | 上海化工研究院 | Diaphragm metering pump with oil supplying device |
| CN2854139Y (en) * | 2005-11-02 | 2007-01-03 | 杭州大潮泵业制造有限公司 | Quick air-discharge structure for hydraulic oil cavity of metering pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1773117A (en) | 2006-05-17 |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hangzhou Dachao Petrochemical Equipment Co., Ltd. Assignor: Dachao Pump Industry Manufacturing Co., Ltd., Hangzhou Contract fulfillment period: 2009.2.6 to 2025.11.1 contract change Contract record no.: 2009330000269 Denomination of invention: Hydraulic oil cavity fast emptying structure for metering pump Granted publication date: 20081022 License type: Exclusive license Record date: 2009.2.13 |
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| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.2.6 TO 2025.11.1; CHANGE OF CONTRACT Name of requester: HANGZHOU DACHAO PETROCHEMICAL EQUIPMENT CO., LTD. Effective date: 20090213 |