CN2093246U - Hand-operated oil pump - Google Patents

Abstract

The utility model relates to hand-operated oil pump which is used for oiling motorcars. A hand-operated piston is arranged in a piston barrel of which the front end is provided with an oil inlet valve and an oil outlet valve, wherein an oil inlet valve cover is connected to the inner side of a shell of the oil inlet valve by pins for the valve cover. An oil outlet valve cover is connected to the outer side of a valve seat by the pins for the valve cover, and the two valve covers can move in an axial direction along the corresponding pins for the valve cover so as to open and close the valves. The piston is repeatedly pushed and pulled, and then, the oil inlet valve and the oil outlet valve are alternately closed and opened to continuously and alternately suck and drain oil. The hand-operated oil pump has the advantages of small size, light weight and portability, is used for the oiling, the oil change, etc. of the motorcars, and prevents drivers from suffering the misery of sucking oil with mouths.

Description

Hand-operated oil pump

The utility model is about a kind of oil pump, particularly to the hand oil pump of automobile fuel filler, the usefulness of changing oil.

For a long time, automobile fuel filler, change oil or putting when unpicking and washing part, oil-absorbing process are adopted siphon principle more, operator must inhale sucking-off from flexible pipe with mouth with oil earlier, could be fuel-displaced continuously, not only unfavorable to health, and often make oil droplet, leak, spill, sprinkle, cause waste, also influence environmental hygiene.

The purpose of this utility model provides the hand oil pump of the oiling usefulness of a kind of use, automobile easy to carry.

The utility model hand oil pump has a piston cylinder, in the tube a manual piston is arranged, the front end of piston cylinder has an oil sucting valve and an outlet valve, oil sucting valve is made up of oil suction valve casing, oil suction valve gap, the oil suction valve gap links to each other by the inboard of valve gap pin with the oil suction valve casing, and can be along the moving axially of valve gap pin, and realize closing, opening of filler opening.Outlet valve is made up of valve seat, fuel-displaced valve gap and fuel-displaced valve casing, and fuel-displaced valve gap links to each other with the outside of valve seat by the valve gap pin, and can be along the moving axially of valve gap pin, and realizes closing, opening of oil outlet.Oil sucting valve and outlet valve with each other vertical be set to good.

During the outside pull piston of this oil pump, oil sucting valve is opened, and outlet valve cuts out, and makes in the oily sucker tube, inwardly during pushing piston, oil sucting valve is closed, and outlet valve is opened, and stops oil suction, and the oil in the piston cylinder is discharged from outlet valve, and so constantly repeatedly, constantly oil suction and oil extraction.

The utility model hand oil pump small portable, easy to carry, putting when giving group refueling, change oil or unpicking and washing part, oil suction can make the driver avoid hardship with the mouth oil suction.Utilize the higher characteristics of oil pressure of this oil pump outlet, also can be used for hands such as gear-box, fuel tank to lathe, vehicle touch less than the cleaning maintenance of parts.This pump is except that pump oil, also applicable to other liquid.

Further specify below in conjunction with accompanying drawing.

Fig. 1 is an example structure figure of the present utility model.

Fig. 2 is that K among Fig. 1 is to view.

Among Fig. 1 embodiment, the piston that hand oil pump has a piston cylinder 11 and can move in tube, this piston is made up of piston rod 10 and piston head 9, there is a knob handle 12 rear end of piston rod, the front end of piston cylinder is provided with oil sucting valve and outlet valve, oil sucting valve is made up of oil suction valve casing 2 and valve gap 14, the front end of oil suction valve casing 2 and piston cylinder is to be threaded, connect a fuel sucking pipe joint 1 on the oil inlet hole at its center, oil suction valve gap 14 is connected the inboard of oil suction valve casing 2 by two valve gap pins 13, aperture, Xiao hole on the valve gap is slightly larger than the external diameter of valve gap pin, thereby make the valve gap 13 can moving axially valve gap Xiao, outlet valve is by delivery valve seat 8, fuel-displaced valve gap 3 and fuel-displaced valve casing 4 formed, and fuel-displaced valve gap is connected the outside of delivery valve seat 8 by valve gap pin 6, with in like manner preceding, fuel-displaced valve gap 3 can moving axially valve gap Xiao 6, be with gland spring 7 on the valve gap pin 6, fuel-displaced valve casing 4 is to be threaded on the delivery valve seat 8, and its center oil outlet is connected with flowline connection to subsea 5.The orthogonal setting of present embodiment oil sucting valve and outlet valve.During use, the oil suction flexible pipe links to each other with joint 1, picks out oil pipe on the delivery connection 5, when the stretching piston rod, produces negative pressure in the piston cylinder, and fuel-displaced valve gap 6 is subjected to the pressure of atmospheric pressure and spring 7 and is close to valve seat 8, and this moment, outlet valve was in closed condition.Oil sucting valve sucks oil because of negative pressure in the piston cylinder, oil suction valve gap 14 direction in tube moves and opens (as Fig. 1 position), when the pushing piston bar, oil pressure in the tube raises, and valve gap 14 is moved to valve casing 2 directions, and oil sucting valve is closed, valve gap 3 is subjected to the effect of oil pressure, the pressure that overcomes spring 7 outwards moves and opens, and oil pump is outside oil extraction, so pushes away, draws piston promptly to reach the purpose of pump oil repeatedly.

Claims (3)

1, hand oil pump, a piston cylinder and manual piston are arranged, the front end that it is characterized in that piston cylinder has an oil sucting valve and an outlet valve, oil sucting valve is made up of oil suction valve casing, oil suction valve gap, the oil suction valve gap links to each other by the inboard of valve gap pin with the oil suction valve casing, and can be along the moving axially of this valve gap pin, and outlet valve is made up of valve seat, fuel-displaced valve gap and fuel-displaced valve casing, fuel-displaced valve gap links to each other with the outside of valve seat by the valve gap pin, and can moving axially along this valve gap pin.

2,, it is characterized in that the vertical each other setting of oil sucting valve and outlet valve as the described hand oil pump of above-mentioned claim 1.

3,, it is characterized in that being with the gland spring on the valve gap of outlet valve as above-mentioned claim 1 or 2 described hand oil pumps.