CN86207216U - Portable manual reciprocating type vacuum-drawing device - Google Patents

Abstract

The utility model provides a portable manual vacuum draw device which has the functions of making a piston do seesaw motion and exhaust air, forming vacuum negative-pressure and generating suction effect. Because provided with a novel piston and an air inlet/outlet structure, the portable manual vacuum draw device in different occasions can suck vacuum, generate siphonage and dredge various blocked oil path and pipe-lines by dirt on power plants such as gasoline and diesel oil flowing vehicles, small-middle sized diesel marine vehicles, etc.

Description

Portable manual reciprocating type vacuum-drawing device

The utility model relates to a kind of manual mode that adopts and passes through to use the device that drop-down push piston is reciprocating on hand, exhausting air formation negative pressure of vacuum produces pumping function.

Utilize siphon principle to realize that the drainage purpose needs aspiration procedure, the oil-piping of machinery, power equipment needs to dredge with pressurized air or with pumping equipment after stopping up ...And existing vacuum pump, pumping equipment all need motivational drive and inconvenience to carry.

With the truck that travels is example: fuel tank is blocked easily to the pipeline between the oil pump to filter, filter, the oil in the oil drum on the truck will be utilized flexible pipe to adopt the siphon way to allow it flow in the fuel tank in addition and all will could realize by the process of suction.The driver is forced under the situation of no tool equipment inhales with mouth.

Existing syphon drainage device is that its device of an oval rubber ball-shaped pump drainage device of air (Fig. 2 1) is installed in the middle of two joint plastic flexible pipes is simpler, shortcoming be bleeding must on railway carriage, carry out wanting rapidly the oval glueballs of emptying gas to be inverted behind (will guarantee that outlet valve vertically downward glueballs in) stream oil allow flow oilyly back down into, assistant that expulsion valve is submitted to its lower end flexible pipe under the car again inserts fuel tank (among Fig. 22,3) with flexible pipe.The driver feels operation inconvenience, and the oil of oil drum bottom is can not siphon clean.It is just powerless because its suction force is not quite for the mediation of line clogging.

With the more akin oil rig of the utility model (seeing diagrammatic sketch 3) is to adopt the tube of taking out that soldering is connected into by galvanized sheet iron, there are the handle and the straight bar section that curve with Round Steel Bar in its inside, a lower end weldering round iron plate (piston), iron plate piston and cylinder inboard wall keep certain clearance, inside 40～50 millimeters away from bottom place has been welded one and has been opened the round iron plate in a hole and link to each other with a round iron K at place, aperture weldering one hinge be at the bottom of tube, has uniform filtration circular hole on the circumference taking out bottom 40～50 millimeters in the tube.The interior liquid of tube was closed K when handle pressed down as can be seen from Figure, entered iron plate piston upper space along sidewall spacers during the fluid pressurized, and liquid is raised and is flowed in the pail that is placed on the oil drum outside by the A place during piston stroking upward, oil was changeed after pail is filled again and poured into ...

The shortcoming of this device can not produce stronger aspiration procedure when to be piston work in oil, liquid, then can't realize fully the suction of air.Its piston only lifts the effect of ability of swimming as pail, also want leakage of oil in the process of lifting, as same leaky carrying (well water) bucket.It three is taken out lower end liquid below 40～50 millimeters (even with oil drum tilt) and also can't aspirate clean.Its four K iron plate is owing to too simple, and is very not tight when closure.It five whenever draws once the gap of its discharge capacity bigger when the highest and minimum when liquid level, and displacement size is subjected to the influence of oil drum liquid level.

Task of the present utility model has provided a kind ofly draws the action that pushes away just can make piston finish back and forth repeatedly up and down that the inlet and outlet process forms the negative pressure of vacuum chamber and the device that produces pumping function with hand.

Task of the present utility model is finished as follows: insert in the oil drum or with the pipeline that is sucked with joint glue (a moulding) flexible pipe one end and join, the other end is inserted in aspirator tubulose suction port, left hand is held the aspirator stack shell, and right hand handle also at the uniform velocity upwards lifts piston rod; Move on the piston, the suction chamber internal pressure reduces, and air backs down suction valve and enters suction chamber, when drawing when stopping suction valve closing by the action of gravity position that falls voluntarily on the piston.Suction chamber pressure increased and backs down exhaust steam valve on the piston when piston was down passed, and air enters exhaust chamber and exhaust port leads to extraneous space.Lift for the second time piston owing to the different atmosphere of pressure reduction about the piston are pressed in outlet valve on (rubber) piston tightly.By piston several times up and down reciprocatingly, air inlet and exhaust valve opens and closes several times, discharges, aspirator just has enough suction forces, the size of its suction is directly proportional with the area of piston.

The utility model has the piston of a novelty and intake and exhaust structure to be characterized in its device:

1. the section with piston is designed to H shape and makes moulding with oil resistant rubber (plastics), and H shape piston can be considered as synthetic (the disjunctor piston) of two pistons; All there is piston skirt the upper and lower, and the rubber-like piston skirt plays airtight function and the effect of (metal) piston ring assurance in the dynamic power machine.With the piston ratio that piston ring is arranged, H shape piston is loaded in the body stack shell also than being easier to.

With design and installation on the piston venting gas appliance have following purpose and characteristics: (1) can allow the medium that is sucked flow in device along the original flow direction.(2) valve seat of outlet valve is partly replaced by rubber piston.Have better elastic caoutchouc air release valve hole and can guarantee good air-tightness, possessed implementation condition for realizing the function that the utlity model has aspiration vacuum with outlet valve with circular cone mating face.(3) changed way in the routine; This kind design is to utilize the deadweight of outlet valve to drop on automatically on the air release valve hole on the piston and by the pin that is installed in outlet valve valve rod lower end outlet valve is limited in the air release valve hole, the atmospheric pressure that also utilizes piston upper and lower faces suction chamber, exhaust chamber changes (malleation or negative pressure) thereby the opening and closing valve has saved indispensable parts such as spring in the design in the past, device is oversimplified (with simply constructing, finish indispensable function) thus weight reduction, lower cost, realize the multi-functional and one-object-many-purposes effect of part.

The utility model can solve the function that multiple occasion need aspirate and only need change the flexible pipe that is connected with aspirator, interconnective joint or sucker.

The utility model concrete structure is implemented by the following drawings and is illustrated.

Fig. 1 is the utility model sectional drawing.

Fig. 2 is the signal of the utility model and the contrast of siphoning installation use condition.

Fig. 3 is existing oil rig structural representation.

As can be seen from Figure 1 by handle (1), piston rod (2), the parts of H shape piston (12) Assembly can be dismantled and also be convenient to change, need only during operation with portable handle (1), piston rod (2), H shape piston (12) be connected (2), (12) nut (9) all moves in the body (13) that metal or plastics are made thereupon, when moving on the H shape piston (12) suction valve (5) up and down two space pressure produce difference and change (external pressure is greater than suction chamber pressure) air and back down suction valve (5) and enter suction chamber, at this moment the outlet valve (11) on the H shape piston (12) is also because of the pressure of suction intraventricular pressure less than exhaust chamber.Atmospheric pressure tightly is pressed in outlet valve (11) on the exhaust port of H shape piston (12), and suction chamber, exhaust chamber pressure convergence equate when piston walks to upper dead center, suction valve is by from flumping the position on the valve seat of making than soft material (8).The suction chamber air is compressed when descent of piston, compressed air jack-up outlet valve (11) is to the exhaust chamber air of releasing, come spacing for the maximum opening that limits outlet valve (11) is equipped with pin (10) on outlet valve (11) valve rod, because H shape piston (12) thus having this kind structure is separated into body (13) suction chamber and discharges the chamber, the size of its volume moves up and down with piston and changes.

Guarantee the tightness of H shape piston (12) and body (13), H shape piston adopts elasticity rubber or plastic production and plunger designs become H shape preferably; H shape piston (12) skirt section up and down all has to be stressed and changes and swell and be close to the characteristics of body (13), and in H shape piston (12) the iron hoop plate (17) in the inside at place, boundary embedded (mold pressing or injection moulding are embedded into when making) when reducing H shape piston (12) work owing to two surface pressures difference is out of shape.

Vacuum aspirator also has energy and is sucked the structure that thing joins; Body bottom (6) and body (13) during fabrication can be for interconnecting two parts in addition, also can become an integral body, have in its lower end one can be for the tapered tube shape suction port of socket joint hose fitting (15) and install within it and stop dirt to suck filter screen (7) in it.

An exhaust port joint (4) that can supply exhaust (discharge opeing) and cover to insert external hose (14) is arranged on body (13) top.

Among the figure (3) for its structure of aspirator loam cake be to allow piston rod (2) move up and down in the heart pilot hole therein, with body (13) socket joint be transition fit, pilot hole cooperates moderate certain airtight effect that has with piston rod.

Claims (3)

1, a kind of portable manual reciprocating type vacuum aspirator has handle [1], piston rod [2], piston [12], suction valve [5], body [13], it is characterized in that:

A, body [13] for tubular and have within it one closely cooperate with body [13] and can free up and down section the piston [12] that is H shape,

Have the delivery valve seat hole on b, the H shape piston [12] and the activity pin [10] of outlet valve [11] and restriction outlet valve [11] maximum opening flexibly has been installed in the hole, because their existence, H shape piston [12] is separated into body [13] suction chamber and discharges the chamber, and the size of its volume moves up and down with piston and changes.

2, by claim 1 specified vacuum aspirator, it is characterized in that the H shape piston of being made by rubber or plastics (12) all has up and down to be stressed changes and swells and be close to body (13) and guarantee airtight piston skirt and the valve seat of outlet valve (11) is partly replaced by rubber piston (12), have better elastic caoutchouc delivery valve seat hole and can guarantee good air-tightness with outlet valve (11) with the conical mating face of increase tightness, in addition for preventing that H shape piston (12) from discharging the barometric pressure of chamber and making piston be out of shape embedded iron hoop plate (17) when suction chamber is vacuum state, like this H shape piston (12) with regard to tool at the G﹠O of finding time, guarantee airtight function during liquid, so the aspirator device does not need to immerse oil, work in the liquid.

3, by claim 1 specified vacuum aspirator, it is characterized in that the body bottom (6) that is connected with body (13) goes up lining and paste one and use the inlet valve seat of making than soft metal (or rubber, plastics) (8), installed at the suction port place of body bottom (6) for stoping dirt to suck the filter screen (7) it in and can supplying the tapered tube shape suction port of socket joint hose fitting (15).

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