CN203463200U - Universal machine and motorcycle carburetor oil inlet device with negative pressure valve - Google Patents
Universal machine and motorcycle carburetor oil inlet device with negative pressure valve Download PDFInfo
- Publication number
- CN203463200U CN203463200U CN201320593766.6U CN201320593766U CN203463200U CN 203463200 U CN203463200 U CN 203463200U CN 201320593766 U CN201320593766 U CN 201320593766U CN 203463200 U CN203463200 U CN 203463200U
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- negative pressure
- pressure valve
- hole
- valve seat
- gland
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Abstract
A universal machine and motorcycle carburetor oil inlet device with a negative pressure valve comprises an L-shaped oil inlet channel, an inner needle valve base, a needle valve, a float, a float chamber and a main oil gauging channel. The device is characterized in that a left transverse hole of the L-shaped oil inlet channel extends to form a negative pressure valve base, a center hole of the negative pressure valve base is a three-level step hole, a transverse flow channel is communicated with the middle step hole in the negative pressure valve base, a step shaft sleeve is fixed to the upper step hole of the negative pressure valve base, and a connector tube is fixed to an inner hole of the step shaft sleeve. A negative pressure valve plug comprises a valve cover, a pressing spring, a spring base, a rivet, a gland and an elastic film, wherein the elastic film is in a circular ring piece shape, the spring base is in a circular piece shape with a center step hole, the gland is in a spherical cap shape with a center step hole, the rivet fixes the spring base, the elastic film and the gland in a riveting mode, a center bottom hole in the bottom of a step circular groove of an inner cavity of the valve cover is communicated with an L-shaped tube body at the bottom, after the pressing spring is arranged in the valve cover in a sleeved mode, and the annular edge of the elastic film is pressed on the lower step hole in the negative pressure valve base for fixed connection. The negative pressure valve is additionally arranged and accordingly the aim that oil does not leak when a machine stops is achieved.
Description
Technical field:
The utility model relates to universal machine and motorcycle, and particularly a kind of universal machine and motorcycle carburetor are with the oil feeding device of negative pressure valve.
Background technique:
Universal machine and motorcycle carburetor are comprised of body base shell, spray chamber, door-hinge twist mechanism, float chamber.Spray chamber is comprised of the atomizing cavity in body base shell, throttle blade, throttle plate pin, suction port, main jet mouth, mist exhausting port.In base shell, establish a two-way taper hole as atomizing cavity, be provided with throttle blade in atomizing cavity, throttle blade is fixed on throttle plate pin, and throttle plate pin two axial ends fit passes through the rotation that two coaxial apertures in chamber are realized throttle blade.Throttle plate pin one end stretch out after base shell with base shell outer wall on fixing door-hinge twist mechanism be in transmission connection.Air is entered by the suction port of atomizing cavity one end, gasoline main gauging road in float chamber enters the main jet mouth of atomizing cavity on body base shell, thereby enter atomizing cavity and air mixed aerosol, then by atomizing cavity the other end mist exhausting port, by pipeline, enter motor, throttle blade is rotated and is controlled air inflow and keying.
Float chamber is an opening up goblet, on it, along limit, docks with the sealing of body base shell concave surface, places the plastic float body of an annulus column in float chamber, and radially tongue piece of a horizontal direction is fixed in floating body bottom surface.
Carburetor oil feeding device by fixing moving needle-valve, floating body, float chamber, the main gauging road coordinating of inner needle valve seat, inner needle valve seat endoporus of fit on the inner downward opening longitudinal hole of the L shaped oil input channel on body base shell, L shaped oil input channel, formed.L shaped oil input channel transverse holes is step hole, and its endoporus is that the outer hole of transverse flow channels is interface holes, and in interface holes, fit is fixed a mouthpiece, and mouthpiece docks with the transport pipe of fuel tank.
Inner needle valve seat be a sleeve body top with uppercap body, its uppercap body central authorities are provided with up-small and down-big taper hole; Needle-valve be a cylindrical body top with upper cone, its cylindrical body cylindrical is provided with 3-4 axial notches.Gasoline is entered by L shaped oil input channel external port, by valve seat uppercap body taper hole, enter the inner chamber of valve seat and sleeve body formation, now needle-valve barrel portion shaft part is linked in sleeve body inner chamber, between cylindrical 3-4 axial notches of needle-valve and sleeve body inwall, form 3-4 longitudinal runners, oil enters float chamber from this longitudinal runner.Along with oil mass increases, floating body is upwards floated by the peripheral space at L shaped oil input channel longitudinal hole, inner needle valve seat under floating function, the fixing radially tongue piece jacking in its underpart needle-valve lower surface lifting needle-valve, when needle-valve lifting puts in place, the upper cone cylindrical on its top is linked in enforcement laminating on valve seat taper hole inwall and closes, and L shaped oil input channel stops oil-feed.And main gauging road one port is on atomizing cavity inwall, another port is submerged in the oil sump of float chamber, the negative pressure that the now gas blowout of atomizing cavity produces, by the gasoline sucking-off of main gauging road float chamber inner port, realizes atomization by the discharge of main jet mouth and mixes in atomizing cavity with air.
The defect of this oil feeding device is: when universal machine and motorcycle are stopped using while killing engine, the fluid overflow in float chamber puts in place on needle-valve and pushes up, and closes needle-valve and stops float chamber fuel feeding.If but when having tiny dirt and be stuck in needle-valve upper cone and valve seat taper hole in oil, needle-valve can not closely be closed, and from this always to oil spilling in float chamber, oil spilling is transmitted to atomizing cavity, suction port, mist exhausting port, motor by main gauging road after filling with float chamber, until certain parts has Leak hole, from Leak hole, flow out and flow out Carburetor and flow out complete machine, causing gasoline waste and unsafe factor.
Summary of the invention:
The purpose of this utility model is to overcome above-mentioned defect, and a kind of universal machine and the motorcycle carburetor oil feeding device with negative pressure valve is provided.
Scheme of the present utility model is: comprise, L shaped oil input channel, inner needle valve seat, needle-valve, floating body, float chamber, main gauging road, L shaped oil input channel is by longitudinal hole, transverse flow channels, mouthpiece forms, it is characterized in that: the left orifice end of L shaped oil input channel transverse holes on body base shell is towards the negative pressure valve seat of a rectangular block shape of left disjunctor extension, negative pressure valve seat central hole is three grades of up-small and down-big step holes, transverse flow channels left end is communicated with the middle step hole hole wall of negative pressure valve seat, step axle sleeve outside thread screws up and is fixed on negative pressure valve seat and tops bar on the internal thread of hole, the endoporus of step axle sleeve is as interface holes, fit fixed interface pipe in its hole, negative pressure valve plug is comprised of valve gap, stage clip, spring seat, rivet, gland, elastic force diaphragm, and elastic force diaphragm is annulus sheet, and its thickness is greater than the negative pressure valve seat hole depth of getting out of a predicament or an embarrassing situation, and its cylindrical and the negative pressure valve seat hole of getting out of a predicament or an embarrassing situation is isometrical, spring seat is the disc-shaped with up-small and down-big central stepped bore, gland is the ball-crown body shape with up big and down small central stepped bore, and the cylinder of rivet is fixed three's riveted through central hole under central stepped bore, spring diaphragm central hole, gland on spring seat successively, valve gap gabarit is step rectangular block shape, inner chamber is step circular groove shape, and step circular groove bottom land is provided with central bottom outlet, and central bottom outlet is communicated with the L shaped body of valve gap bottom disjunctor, spring diaphragm is linked in to negative pressure valve seat gets out of a predicament or an embarrassing situation on hole, then in valve gap inner chamber step circular groove, put into stage clip, valve gap upper-end surface is pressed together on elastic membrane loop limit, with four bolts, implement valve gaps again and be connected with the fixedly pressing of negative pressure valve seat, stage clip upper and lower end face is pushed up and is attached under valve gap inner chamber step circular groove bottom land and spring seat between bottom surface, central stepped bore hole and gland spherical crown surface is pressed down in elastic force effect under the step axle sleeve being attached on negative pressure valve seat on annulus end face.
The utility model has the advantage of: set up negative pressure valve and reach the oil tight safety fuel saving object of shutdown.
Accompanying drawing explanation:
Fig. 1 is the oil feeding device structural representation of prior art Carburetor.
Fig. 2 is the utility model structural representation.
Embodiment:
The utility model comprises, L shaped oil input channel, inner needle valve seat, needle-valve, floating body, float chamber 4, main gauging road, L shaped oil input channel is by longitudinal hole, transverse flow channels 1, mouthpiece 3 forms, it is characterized in that: the left orifice end of L shaped oil input channel transverse holes on body base shell is towards the negative pressure valve seat 6 of a rectangular block shape of left disjunctor extension, negative pressure valve seat 6 central holes are three grades of up-small and down-big step holes, transverse flow channels 1 left end is communicated with the middle step hole hole wall of negative pressure valve seat 6, step axle sleeve 5 outside thread screw up and are fixed on negative pressure valve seat 6 and top bar on the internal thread of hole, the endoporus of step axle sleeve 5 is as interface holes 2, fit fixed interface pipe 3 in its hole, negative pressure valve plug is comprised of valve gap 9, stage clip 11, spring seat 10, rivet, gland 7, elastic force diaphragm 8, and elastic force diaphragm 8 is annulus sheet, and its thickness is greater than negative pressure valve seat 6 hole depth of getting out of a predicament or an embarrassing situation, and its cylindrical and negative pressure valve seat 6 hole of getting out of a predicament or an embarrassing situation is isometrical, spring seat 10 is the disc-shaped with up-small and down-big central stepped bore, gland 7 is the ball-crown body shape with up big and down small central stepped bore, and the cylinder of rivet is fixed three's riveted through central stepped bore, spring diaphragm 8 central holes, 7 times central holes of gland on spring seat 10 successively, valve gap 9 gabarits are step rectangular block shape, inner chamber is step circular groove shape, and step circular groove bottom land is provided with central bottom outlet, and central bottom outlet is communicated with the L shaped body 12 of valve gap bottom disjunctor, spring diaphragm 8 is linked in to negative pressure valve seat 6 gets out of a predicament or an embarrassing situation on hole, then in valve gap 9 inner circle step circular grooves, put into stage clip 11, valve gap 9 upper-end surfaces are pressed together on elastic force diaphragm 8 ring limits, with four bolts, implement valve gap 9 again and be connected with the fixedly pressing of negative pressure valve seat 6, stage clip 11 tops, upper and lower end face are attached between valve gap 9 inner circle step circular groove bottom lands and bottom surface, 10 times central stepped bore holes of spring seat and gland 7 spherical crown surfaces are pressed down on the 5 times annulus end faces of step axle sleeve that are attached on negative pressure valve seat 6 in elastic force effect.
By negative pressure valve seat 6, negative pressure valve plug, form a negative pressure valve.Its mouthpiece 3 is communicated with fuel tank by pipeline, and its valve gap 9 L shaped bodys 12 in bottom are communicated with the intake manifold on motor by pipeline.The utility model is connected in series a negative pressure valve at prior art fuel tank with float chamber 4 oil circuits, when under engine behavior, the negative pressure of intake manifold is delivered in the die cavity that valve gap 9 step circular grooves and elastic force diaphragm surround by L shaped body 12, in the die cavity that makes it to produce, negative pressure drives that elastic force diaphragm 8, spring seat 10 are descending overcomes stage clip elastic force, gland 7 disengages with 5 times annulus end faces of step axle sleeve, oil enters step hole negative pressure valve seat 6, transverse flow channels 1 from mouthpiece 3, thereby flows into needle-valve, float chamber, main amount runner, atomizing cavity, motor.Elastic force diaphragm 8 is that limit diaphragm is isolated negative cavity and overcurrent chamber, and air-negative-pressure changes with stage clip elastic force and forms the driving force that elastic force diaphragm 8 moves up and down.When motor during in off working state intake manifold there is no negative pressure, negative pressure valve does not collect negative pressure signal, under atmospheric pressure state, stage clip 11 overlays gland 7 spherical crown surfaces on 5 times annulus end faces of step axle sleeve, cut off not oil-feed of oil circuit, even if needle-valve can not close because of dirt, also without oil, can leak, reach oil tight safety fuel saving object.
Claims (1)
1. a universal machine and motorcycle carburetor are with the oil feeding device of negative pressure valve, comprise, L shaped oil input channel, inner needle valve seat, needle-valve, floating body, float chamber (4), main gauging road, L shaped oil input channel is by longitudinal hole, transverse flow channels (1), mouthpiece (3) forms, it is characterized in that: the left orifice end of L shaped oil input channel transverse holes on body base shell is towards the negative pressure valve seat (6) of a rectangular block shape of left disjunctor extension, negative pressure valve seat (6) central hole is three grades of up-small and down-big step holes, transverse flow channels (1) left end is communicated with the middle step hole hole wall of negative pressure valve seat (6), a step axle sleeve (5) outside thread screws up and is fixed on negative pressure valve seat (6) and tops bar on the internal thread of hole, the endoporus of step axle sleeve (5) is as interface holes (2), fit fixed interface pipe (3) in its hole, negative pressure valve plug is comprised of valve gap (9), stage clip (11), spring seat (10), rivet, gland (7), elastic force diaphragm (8), elastic force diaphragm (8) is annulus sheet, its thickness is greater than negative pressure valve seat (6) hole depth of getting out of a predicament or an embarrassing situation, and its cylindrical and negative pressure valve seat (6) hole of getting out of a predicament or an embarrassing situation is isometrical, spring seat (10) is the disc-shaped with up-small and down-big central stepped bore, gland (7) is the ball-crown body shape with up big and down small central stepped bore, and the cylinder of rivet is fixed three's riveted through the upper central stepped bore of spring seat (10), spring diaphragm (8) central hole, the lower central hole of gland (7) successively, valve gap (9) gabarit is step rectangular block shape, inner chamber is step circular groove shape, and step circular groove bottom land is provided with central bottom outlet, and central bottom outlet is communicated with the L shaped body (12) of valve gap bottom disjunctor, spring diaphragm (8) is linked in to negative pressure valve seat (6) gets out of a predicament or an embarrassing situation on hole, then in valve gap (9) inner chamber step circular groove, put into stage clip (11), valve gap (9) upper-end surface is pressed together on elastic force diaphragm (8) ring limit, with four bolts, implement valve gap (9) again and be connected with the fixedly pressing of negative pressure valve seat (6), top, stage clip (11) upper and lower end face is attached between valve gap (9) inner chamber step circular groove bottom land and bottom surface, the lower central stepped bore hole of spring seat (10) and gland (7) spherical crown surface is pressed down on the lower annulus end face of the step axle sleeve (5) being attached on negative pressure valve seat (6) in elastic force effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320593766.6U CN203463200U (en) | 2013-09-22 | 2013-09-22 | Universal machine and motorcycle carburetor oil inlet device with negative pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320593766.6U CN203463200U (en) | 2013-09-22 | 2013-09-22 | Universal machine and motorcycle carburetor oil inlet device with negative pressure valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203463200U true CN203463200U (en) | 2014-03-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320593766.6U Withdrawn - After Issue CN203463200U (en) | 2013-09-22 | 2013-09-22 | Universal machine and motorcycle carburetor oil inlet device with negative pressure valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203463200U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485935A (en) * | 2013-09-22 | 2014-01-01 | 福建福鼎京科化油器有限公司 | Negative-pressure-valve-carried oil feeding device of carburetors of general machines and motorcycles |
-
2013
- 2013-09-22 CN CN201320593766.6U patent/CN203463200U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485935A (en) * | 2013-09-22 | 2014-01-01 | 福建福鼎京科化油器有限公司 | Negative-pressure-valve-carried oil feeding device of carburetors of general machines and motorcycles |
| CN103485935B (en) * | 2013-09-22 | 2015-08-19 | 福建福鼎京科化油器有限公司 | A kind of universal machine and motorcycle carburetor are with the oil feeding device of negative pressure valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140305 Effective date of abandoning: 20150819 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140305 Effective date of abandoning: 20150819 |
|
| RGAV | Abandon patent right to avoid regrant |