CN201412247Y

CN201412247Y - Piston-type manual oil pump of automotive fuel filter

Info

Publication number: CN201412247Y
Application number: CN2009201526061U
Authority: CN
Inventors: 姚国志; 糜亮
Original assignee: Ningbo Jinda Automobile Components Co Ltd
Current assignee: Ningbo Jinda Automobile Components Co Ltd
Priority date: 2009-05-08
Filing date: 2009-05-08
Publication date: 2010-02-24
Anticipated expiration: 2019-05-08

Abstract

The utility model provides a piston-type manual oil pump of an automotive fuel filter, which comprises a pump body (1), a piston (2), a spring (3), a sealing head (4) and a pressing cover (5). In theutility model, the oil pump consisting of the piston and a pump cylinder carries out a reciprocating motion in the sealed pump cylinder by manually pressing in the cylindrical piston recovered by thespring, wherein the pump cylinder is provided with a unidirectional valve passage; the technical scheme of pumping the fuel into the filter overcomes the problems and defects that the film-type manualoil pump of the fuel filter of the prior art has low pumping efficiency, wastes time and effort and has low reliability; and the piston-type manual oil pump of the automotive fuel filter leads the manual oil pump of the automotive fuel filter to achieve the objects of improving pumping efficiency, saving time and effort and having high reliability.

Description

Automobile fuel oil filter piston type hand oil pump

Technical field

The utility model relates to a kind of hand oil pump, specifically is meant to be located on the automobile fuel oil filter, in order to a kind of automobile fuel oil filter piston type hand oil pump of initial oil pressure to be provided to fuel filter.

Background technique

Automobile after new car or the oil extraction maintenance does not have oil in the fuel filter, must earlier fuel oil be advanced filter cleaner through the hand pump pump and set up initial oil pressure, again by motor pump booster pump oil.The automobile fuel oil filter hand oil pump of prior art is a diaphragm type, manually is pressed into flatly to advance by handle, and the dish shape diaphragm that spring reset bloats is done the flat motion of drum repeatedly fuel pump is advanced filter cleaner in the airtight pump chamber that is provided with check valve.

The fuel filter diaphragm type hand oil pump of prior art, its diaphragm is by the sealing of screw in compression pump cover jam-packed, the to-and-fro motion of diaphragm easily causes poor sealing, operational safety is low, and is subjected to the restriction of diaphragm structure, and the pump oil mass that whenever presses once is few, during hand pump oil, press often, pump oil wastes time and energy, therefore, prior art exists that operational safety is low, the problems and shortcomings of the oily inefficiency that wastes time and energy of pump.

Summary of the invention

Problems and shortcomings at above-mentioned prior art existence, the utility model adopts the oil pump that is made of piston, pumping cylinder, by manually being pressed into the plunger of spring reset, reciprocating in the airtight pumping cylinder that is provided with the check valve passage, fuel pump is advanced the technological scheme of filter cleaner, a kind of automobile fuel oil filter piston type hand oil pump is provided, is intended to make the automobile fuel oil filter hand oil pump to reach to improve the purpose of pump oil efficient, time saving and energy saving, high reliability.

The purpose of this utility model is achieved in that automobile fuel oil filter piston type hand oil pump, comprise the pump housing, piston, spring, end socket, gland, wherein: the described pump housing is the aluminum alloy pump housing member that cooperates with the regular fuel filter cleaner, top at pump seat, the back of flange is provided with the outlet axis up and the cylinder tube shape pumping cylinder of flange orthogonal axe, the cylinder chamber is the column jecket stepped shape, cylinder chamber stepped part suitable for reading is provided with internal thread, the bottom is provided with the inlet port runner that communicates with the pump seat runner, cylinder chamber direction is equipped with the rubber check valve by being permitted on the inlet port, cylinder chamber lower step is provided with the oil outlet runner that communicates with flanged surface towards the locular wall of flange, and the outlet port of oil outlet runner is equipped with the rubber check valve by permitting out cylinder chamber direction; Described piston is the cylindrical aluminium alloy components, the piston cylinder is equipped with " O " type rubber piston ring, and riveting is revolved at the center, upper end the shaft-like piston rod of cylinder, and piston rod part is provided with tenon, be provided with the shaft-like lock pin that passes cylinder below the tenon, the tenon top is provided with blind screwhole; Described spring is the spiral cylinder pressure spring; Described end socket is an outside thread cylindrical cap shape aluminium alloy element, last cylinder is provided with outer hexagon and pulls the angle, following cylinder is provided with outside thread, the center, upper-end surface is provided with synthetic through hole circular and long rectangle, the center, lower end surface is provided with and the long rectangle half slot that synthesizes the long rectangular portion quadrature of through hole, constitutes " ten " word cross-like; Described gland is circular basin-shaped component, and center, the interior end of basin is provided with cylinder, and the cylinder upper end is provided with the riveting mouth, and the bottom of riveting mouth is provided with the through hole that communicates with the basin outer bottom.

Combination (each parts mutual alignment relation)

Spring is movably placed in pumping cylinder cylinder chamber lower step, the synthetic through hole of end socket passes piston rod, its lower end face length rectangle half slot fastens lock pin, the compressing piston slides and places cylinder chamber middle bench, and pressure spring, in the lower step of indentation pumping cylinder cylinder chamber, the outside thread precession pumping cylinder cylinder chamber internal thread suitable for reading of end socket is fixed, the riveting muzzle of gland is gone into the tenon of piston rod, through the blind screwhole on tenon top and the through hole of gland, fixes with screw.

Working principle

The flange of the pump housing and regular fuel filter cleaner are plugged into and are constituted the fuel filter assembly of band hand oil pump, during work, following pressing cover, and horizontally rotate 90 ° of angles, at this moment, the lock pin that is buckled in the rectangle half slot of end socket lower end surface forwards the synthetic lead to the hole site release of rectangle to, and the spring action piston moves up, and lock pin passes synthetic through hole thereupon and ejects; The manual depression gland, driven plunger moves downward, air in the piston compressing cylinder chamber is discharged via fuel filter by the rubber check valve of oil outlet runner, unclamp gland, the spring action piston reset, cylinder forms negative pressure in the chamber, with the fuel oil at inlet port runner place via in the rubber check valve suction cylinder chamber, depress gland again, the fuel oil in the suction cylinder chamber is pressed into fuel filter; Unclamp so repeatedly and depress gland, fuel oil is progressively pumped into fuel filter, until setting up initial oil pressure; Afterwards, following pressing cover, and horizontally rotate 90 ° of angles forwards lock pin in the rectangle half slot of end socket lower end surface to and fastens, and makes the pressure cap locking, finishes.

Because the cylinder chamber actual volume of described pistons work is the diaphragm type hand oil pump of discharge capacity greater than prior art, therefore, pump oil efficient exceeds the diaphragm type hand oil pump several times of prior art.

Above-mentioned, the utility model adopts the oil pump that is made of piston, pumping cylinder, by manually being pressed into the plunger of spring reset, reciprocating in the airtight pumping cylinder that is provided with the check valve passage, fuel pump is advanced the technological scheme of filter cleaner, overcome the pump oil efficient that the fuel filter diaphragm type hand oil pump of prior art exists low, waste time and energy, problems and shortcomings that reliability is low, a kind of automobile fuel oil filter piston type hand oil pump of being provided has reached the automobile fuel oil filter hand oil pump to improve the purpose of pump oil efficient, time saving and energy saving, high reliability.

Description of drawings

Fig. 1 is that the surface structure axle of automobile fuel oil filter piston type hand oil pump of the present utility model is surveyed schematic representation;

Fig. 2 is the sectional view of the internal structure of automobile fuel oil filter piston type hand oil pump of the present utility model;

Fig. 3 be each parts of automobile fuel oil filter piston type hand oil pump of the present utility model decompose vertically overlook axonometric drawing;

Fig. 4 be automobile fuel oil filter piston type hand oil pump of the present utility model the end socket parts look up axonometric drawing;

Fig. 5 be automobile fuel oil filter piston type hand oil pump of the present utility model gland component look up axonometric drawing.

Below in conjunction with the embodiment in the accompanying drawing the utility model is described in further detail, but should not be construed as any restriction of the present utility model.

Among the figure: the pump housing 1, pump seat 12, flange 13, pumping cylinder 14, inlet port runner 15, oil outlet runner 16, rubber check valve 17, piston 2, piston ring 21, piston rod 22, tenon 23, lock pin 24, spring 3, end socket 4, gland 5, riveting mouth 51.

Embodiment

Consult Fig. 1～Fig. 5, a kind of automobile fuel oil filter piston type hand oil pump of the present utility model, comprise the pump housing 1, piston 2, spring 3, end socket 4, gland 5, wherein: the described pump housing 1 is the aluminum alloy pump housing member that cooperates with the regular fuel filter cleaner, top at pump seat 12, the back of flange 13 is provided with the outlet axis up and the cylinder tube shape pumping cylinder 14 of flange orthogonal axe, the cylinder chamber is the column jecket stepped shape, cylinder chamber stepped part suitable for reading is provided with internal thread, the bottom is provided with the inlet port runner 15 that communicates with the pump seat runner, cylinder chamber direction is equipped with rubber check valve 17 by being permitted on the inlet port, cylinder chamber lower step is provided with the oil outlet runner 16 that communicates with flanged surface towards the locular wall of flange, and the outlet port of oil outlet runner 16 is equipped with rubber check valve 17 by permitting out cylinder chamber direction; Described piston 2 is the cylindrical aluminium alloy components, the piston cylinder is equipped with " O " type rubber piston ring 21, and riveting is revolved at the center, upper end the shaft-like piston rod 22 of cylinder, and piston rod part is provided with tenon 23, be provided with the shaft-like lock pin 24 that passes cylinder below the tenon, tenon 23 tops are provided with blind screwhole; Described spring 3 is the spiral cylinder pressure spring; Described end socket 4 is an outside thread cylindrical cap shape aluminium alloy element, last cylinder is provided with outer hexagon and pulls the angle, following cylinder is provided with outside thread, the center, upper-end surface is provided with synthetic through hole circular and long rectangle, the center, lower end surface is provided with and the long rectangle half slot that synthesizes the long rectangular portion quadrature of through hole, constitutes " ten " word cross-like; Described gland 5 is circular basin-shaped component, and center, the interior end of basin is provided with cylinder, and the cylinder upper end is provided with riveting mouth 51, and the bottom of riveting mouth is provided with the through hole that communicates with the basin outer bottom.

Combination (each parts mutual alignment relation)

Spring 3 is movably placed in pumping cylinder 14 cylinder chamber lower step, the synthetic through hole of end socket 4 passes piston rod 22, its lower end face length rectangle half slot fastens lock pin 24, compressing piston 2 slides and places cylinder chamber middle bench, and pressure spring 3, in the indentation pumping cylinder 14 cylinder chamber lower step, outside thread precession pumping cylinder cylinder chambers 14 internal thread suitable for reading of end socket 4 is fixed, the riveting mouth 51 of gland 5 is inserted in the tenon 23 of piston rod 22, through the blind screwhole on tenon 23 tops and the through hole of gland 5, fixes with screw.

Working principle

The flange 13 and the regular fuel filter cleaner of the pump housing 1 plugged into and constituted the fuel filter assembly of band hand oil pump, during work, following pressing cover 5, and horizontally rotate 90 ° of angles, at this moment, the lock pin 24 that is buckled in the end socket 4 lower end surface rectangle half slots forwards the synthetic lead to the hole site release of rectangle to, and spring 3 apply pistons 2 move up, and lock pin 24 passes synthetic through hole thereupon and ejects; Manual depression gland 5, driven plunger 2 moves downward, air in the piston compression cylinder chambers 2 is discharged via fuel filter by the rubber check valve 17 of oil outlet runner 16, unclamp gland 5, spring 3 apply pistons 2 reset, and cylinder forms negative pressure in the chamber, with the fuel oil at inlet port runner 15 places via in the rubber check valve suction cylinder chambers 17, depress gland 5 again, the fuel oil in the suction cylinder chamber is pressed into fuel filter; Unclamp so repeatedly and depress gland 5, fuel oil is progressively pumped into fuel filter, until setting up initial oil pressure; Afterwards, following pressing cover 5, and horizontally rotate 90 ° of angles forwards lock pin 24 in the end socket 4 lower end surface rectangle half slots to and fastens, and makes pressure cap 5 lockings, finishes.

Claims

1, automobile fuel oil filter piston type hand oil pump, comprise the pump housing (1), piston (2), spring (3), end socket (4), gland (5), it is characterized in that: the aluminum alloy pump housing member of the described pump housing (1) for cooperating with the regular fuel filter cleaner, top in pump seat (12), the back of flange (13) is provided with the outlet axis up and the cylinder tube shape pumping cylinder (14) of flange orthogonal axe, the cylinder chamber is the column jecket stepped shape, cylinder chamber stepped part suitable for reading is provided with internal thread, the bottom is provided with the inlet port runner (15) that communicates with the pump seat runner, cylinder chamber direction is equipped with rubber check valve (17) by being permitted on the inlet port, cylinder chamber lower step is provided with the oil outlet runner (16) that communicates with flanged surface towards the locular wall of flange, and the outlet port of oil outlet runner (16) is equipped with rubber check valve (17) by permitting out cylinder chamber direction; Described piston (2) is the cylindrical aluminium alloy components, the piston cylinder is equipped with " O " type rubber piston ring (21), riveting is revolved at the center, upper end the shaft-like piston rod of cylinder (22), piston rod part is provided with tenon (23), be provided with the shaft-like lock pin (24) that passes cylinder below the tenon, tenon (23) top is provided with blind screwhole; Described spring (3) is the spiral cylinder pressure spring; Described end socket (4) is an outside thread cylindrical cap shape aluminium alloy element, last cylinder is provided with outer hexagon and pulls the angle, following cylinder is provided with outside thread, the center, upper-end surface is provided with synthetic through hole circular and long rectangle, the center, lower end surface is provided with and the long rectangle half slot that synthesizes the long rectangular portion quadrature of through hole, constitutes " ten " word cross-like; Described gland 5 is circular basin-shaped component, and center, the interior end of basin is provided with cylinder, and the cylinder upper end is provided with riveting mouth (51), and the bottom of riveting mouth is provided with the through hole that communicates with the basin outer bottom.

2, automobile fuel oil filter piston type hand oil pump according to claim 1, it is characterized in that: described each parts mutual alignment is closed and is, spring (3) is movably placed in pumping cylinder (14) cylinder chamber lower step, the synthetic through hole of end socket (4) passes piston rod (22), its lower end face length rectangle half slot fastens lock pin (24), compressing piston (2) slides and places cylinder chamber middle bench, and pressure spring (3), in the lower step of indentation pumping cylinder (14) cylinder chamber, outside thread precession pumping cylinder (14) the cylinder chamber internal thread suitable for reading of end socket (4) is fixed, the riveting mouth (51) of gland (5) is inserted in the tenon (23) of piston rod (22), fixes with screw through the blind screwhole on tenon (23) top and the through hole of gland (5).