CN2065680U - Sleeve tube submerged hand-press pump for oil tank - Google Patents

Abstract

The utility model discloses a sleeve tube submerged hand-press pump for an oil tank, comprising a pump, a pump cover, an oil discharging pipe, an oil suction pipe, a two-way piston, a return stopping valve and a bottom valve. The outer diameter of the pump is smaller than the pump cover, the upper part is provided with oil spilling holes, the oil discharging pipe in the pump is penetrated out from the center hole of the pump cover, and the lower part is connected with the return stopping valve and the two-way piston. The pump can plunge into an oil drum for fixing the pump cover when works, with pumping the oil discharging pipe, the oil liquid can be sucked into the pump with the action of the atmospheric pressure, and then the oil liquid can be ejected from the oil discharging pipe. The utility model has the advantages of easy oil suction, no oil guiding, no oil spilling, low manufacturing accuracy and sealing performance requirements, the necessary draw rod of a general hand pump can be omitted, and the manufacture cost is about 1/5 of similar products.

Description

Sleeve tube submerged hand-press pump for oil tank

The utility model belongs to a kind of hand pump that can aspirate various liquid from general oil drum, is particularly suitable as various Motor Vehicle fuel ups and uses.

Now, the apparatus that refuels for Motor Vehicle is generally instruments such as manual pump, hand pump, because a big body weight, cost is higher, uses very inconvenient.For example the shaking type oil pump adopts the hand gear up scraper plate of manpower vacuum pump structure more, requires quite high to accuracy of manufacturing.Some hand pump is introduced as Chinese patent 85200476, though possess characteristics such as efficient height, lift is big, purposes is wide, because the pump housing of this pump is arranged on outside the bucket, volume is very big, and is very high to accuracy of manufacturing and sealability requirement, so manufacture cost is very high.Therefore, two kinds of pumps all are unfavorable for penetration and promotion more than.At present, have many motor vehicle particularly farm tractor when fuel up, often adopt portable oil drum to refuel or draw the method for oil with hose port, it is unhygienic again promptly to spill oil easily, causes waste and harm operator's health easily.

The purpose of this utility model is to provide a kind of sleeve pipe submerged type hand pump for oil tank, and promptly oil outlet tube is located in the pump, slips in the oil drum during pump work, the oil that overflows does not still outflow in oil drum, simplifies the structure of fueling vehicle, reduced volume, reduce cost, avoid waste.

The utility model is to be made of institutes such as pump, pump cover, oil outlet tube, check valve, bidirectional piston, bottom valve, fuel sucking pipes.Pump top and pump cover be fixedly connected and diameter less than pump cover, the pump cover center has circular hole, oil outlet tube is equipped with in pump inside, oil outlet tube top passes from the pump cover center hole, handle is housed, the bottom connects check valve and bidirectional piston, is provided with the oil spilling hole on pump top, and the bottom links to each other with fuel sucking pipe by bottom valve.During work pump is placed oil drum fully, pump cover is fixed on the inlet of general oil drum.The pulling handle makes oil outlet tube drive bidirectional piston and twitches up and down, and check valve is closed the bottom valve unlatching when up, forms negative pressure in the pump, and fluid is sucking in the pump through fuel sucking pipe under the barometric pressure effect; Bottom valve cuts out when descending, and check valve is washed open by fluid, and the pump inner fluid pumps through oil outlet tube under the pressure of piston.Can be when scurrying to the piston top if any a small amount of fluid during pump oil by in the oil spilling orifice flow oil return bucket, to prevent from oil outlet tube and pump cover center hole gap location oil spilling.

Compared with the prior art the utility model has: pump can dive in the bucket when work, shorten fuel sucking pipe length, saved the pull bar of general oil hand pump, oil suction is easy, needn't draw oil before the pump oil, because of no oil spilling problem, the accuracy of manufacturing of piston and sealing requirements can reduce greatly, oil outlet tube and pump cover center hole can adopt Spielpassung, and manufacture cost is about 1/5th of like product.

Accompanying drawing is the utility model structural representation.

(1) handle, (2) pump cover, (3) oil spilling hole, (4) pump, (5) oil outlet tube, (6) retaining nail, (7) check valve, (8) check valve seat, (9) bidirectional piston, (10) bottom valve, (11) foot valve seat, (12) fuel sucking pipe, (13) oil drum, (14) oil inlet hole.

The utility model is realized by following scheme as shown in the figure.The cylindrical of pump cover (2) can be processed into outside screw type, so that be screwed on the oil drum (13), its center is one to be slightly larger than the circular hole of oil outlet tube (5) external diameter, so that oil outlet tube (5) motion freely.Pump (4) upper end and the welding of pump cover (2) inner face, its external diameter is less than the externally threaded internal diameter of pump cover (2), so that slip in the oil drum (13) during work, on the top circumference of pump (4), get out several oil spillings hole (3), bottom valve (10) is installed with the foot valve seat that is threaded (11) in the bottom.At foot valve seat (a 11) lower end welding fuel sucking pipe (12),, fuel sucking pipe (12) bottom lock can be got out several oil inlet holes (14) from tube wall in order to prevent that precipitated impurities is drunk up in the oil.Certainly, augmented flow also can extend pump if desired, cancellation fuel sucking pipe (12).

Oil outlet tube (5) is installed in the pump (4), and with the center hole employing Spielpassung of pump cover (2), the lower end connects check valve seat (8), loads onto check valve (7).Check valve (7) and bottom valve (10) can adopt the ball valve form.In order to prevent that pump when oil check valve (7) from scurrying out from oil outlet tube (5) upper end, can on oil outlet tube (5) wall of the top of check valve (7), adorn a retaining nail (6).Bidirectional piston (9) is installed in check valve seat (8) bottom, and two of bidirectional piston (9) employings are played vapour tube leather cup and are installed dorsad.Fix with cotter pin.For easy to operate, can adorn a handle (1) at oil outlet tube (5) place suitable for reading.Owing to do not bear pressure during the work of this product.Therefore, oil outlet tube (5), fuel sucking pipe (12) and pump (4) but common metal and nonmetallic pipe manufacturing.

Claims (2)

1, a kind of sleeve pipe submerged type hand pump for oil tank is made of pump [4], pump cover [2], oil outlet tube [5], fuel sucking pipe [12], check valve [7], it is characterized in that fixedlying connected with pump cover [2] in pump [4] top and diameter less than pump cover [2], be provided with oil outlet tube [5] in the inside of pump [4], pump [4] top is provided with oil spilling hole [3], and the bottom links to each other with fuel sucking pipe [12] by foot valve seat [11].

2, sleeve pipe submerged type hand pump for oil tank according to claim 1, it is characterized in that bidirectional piston (9) being installed, retaining nail (6) is housed on oil outlet tube (5) wall of check valve (7) top in check valve seat (8) bottom of fixedlying connected with oil outlet tube (5) lower end.

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