CN2854139Y - Quick air-discharge structure for hydraulic oil cavity of metering pump - Google Patents
Quick air-discharge structure for hydraulic oil cavity of metering pump Download PDFInfo
- Publication number
- CN2854139Y CN2854139Y CN 200520115921 CN200520115921U CN2854139Y CN 2854139 Y CN2854139 Y CN 2854139Y CN 200520115921 CN200520115921 CN 200520115921 CN 200520115921 U CN200520115921 U CN 200520115921U CN 2854139 Y CN2854139 Y CN 2854139Y
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- CN
- China
- Prior art keywords
- screw
- emptying
- hydraulic oil
- metering pump
- fishplate bar
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a pump device for the purpose of providing a fast emptying structure for metering pump hydraulic oil pocket, which comprises a hydraulic oil loop fishplate bar assembly and an emptying oil cup assembly; wherein, the hydraulic oil loop fishplate bar assembly comprises a fishplate bar with an oil way channel, a T-piece screw and an emptying screw; the emptying oil cup assembly comprises an oil cup and a hollow forcing screw connected to the oil cup. The forcing screw is provided with the same external thread as that of the emptying screw and can be screwed to the top of the T-piece screw. The utility model technically improves the original product, greatly simplifies operational procedure, and realizes rapid air discharge in hydraulic oil pocket of hydraulic metering pump.
Description
Technical field
The utility model relates to a kind of device of pump.More particularly, the utility model 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 purpose of this utility model is to overcome deficiency of the prior art, and a kind of hydraulic oil cavity fast emptying structure for metering pump is provided.
Hydraulic oil cavity fast emptying structure for metering pump in the utility model comprises hydraulic oil circuit fishplate bar assembly and emptying lubricating cup assembly two partly; 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 beneficial effects of the utility model are:
The utility model 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 among the utility model embodiment
Fig. 2 is the general assembly drawing of prior art metering pump pump head
Fig. 3 is an emptying lubricating cup general assembly drawing among the utility model embodiment
Embodiment
With reference to the accompanying drawings, will be described in detail the utility model below.
Hydraulic oil cavity fast emptying structure for metering pump comprises hydraulic oil circuit fishplate bar assembly and emptying lubricating cup assembly two partly in the utility model.
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 embodiment of the utility model.Obviously, the utility model is not limited to above embodiment, and many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of the utility model all should be thought protection domain of the present utility model.
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 partly; 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 |
|---|---|---|---|
| CN 200520115921 CN2854139Y (en) | 2005-11-02 | 2005-11-02 | Quick air-discharge structure for hydraulic oil cavity of metering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520115921 CN2854139Y (en) | 2005-11-02 | 2005-11-02 | Quick air-discharge structure for hydraulic oil cavity of metering pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2854139Y true CN2854139Y (en) | 2007-01-03 |
Family
ID=37580770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520115921 Expired - Lifetime CN2854139Y (en) | 2005-11-02 | 2005-11-02 | Quick air-discharge structure for hydraulic oil cavity of metering pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2854139Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100427760C (en) * | 2005-11-02 | 2008-10-22 | 杭州大潮泵业制造有限公司 | Hydraulic oil cavity fast emptying structure for metering pump |
-
2005
- 2005-11-02 CN CN 200520115921 patent/CN2854139Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100427760C (en) * | 2005-11-02 | 2008-10-22 | 杭州大潮泵业制造有限公司 | Hydraulic oil cavity fast emptying structure for metering pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20081022 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |