CN206501708U - A kind of automotive oil tank oiling gas exhausting valve - Google Patents

Abstract

A kind of automotive oil tank oiling gas exhausting valve, including upper lid and ejection nozzle；Upper lid links with housing, and the lower edge of a bottom and housing is connected.There is a hollow housing cone point on the top of housing, and after housing and top cap knot, the housing cone point is in close contact with taper delivery outlet.One float is set in housing, and the shape of the float tip of float and the housing cavity horn mouth of housing coincide.The body shape of the float is to set some guiding slanted bars on a up-thin-low-thick cylinder, the housing hollow inwall of the housing.The utility model has the advantages that:The up-thin-low-thick cylinder body shape of float is oriented under the guiding of slanted bar on housing hollow inwall, is floated and is fallen all very smooth, is not in the phenomenon of card；The embedded bell-mouthed float tip of housing cavity is that hard material is made, and is not in the phenomenon that can not depart from because inner and outer air pressure has pressure difference.

Description

A kind of automotive oil tank oiling gas exhausting valve

Technical field

The utility model is related to the technology of auto parts making, more particularly, to a kind of automotive oil tank oiling gas exhaust inspecting The automotive oil tank oiling gas exhausting valve of valve, particularly float-type.

Background technology

In the prior art, exhaust control device must be installed on automotive oil tank additional, the hyperbar in fuel tank is discharged into outside case, so The fuel oil together discharged is reclaimed again afterwards, as No. 201220443622.8 of DongFeng Automobile Co., Ltd's application, title As described by the utility model patent of " a kind of gas extraction system of fuel tank "：The utility model discloses a kind of fuel oil The gas extraction system of case, including oil filling pipe, it is characterized in that, provided with storage between the downtake pipe and second exhaust pipe Oil pipe, the air outlet section of the downtake pipe is located in oil storing tube and the port of export is higher than in the lower end of oil storing tube, the air outlet section Provided with spill port.It ensures that in the case where blast pipe has U shape structures blast pipe smooth gas discharge refuels smooth.

It is Systems architecture and solutions portfolio Aerfumeer Precision ag with the utility model the most close technology No. 201110169923.6, the Chinese invention patent application of entitled " air bleeding valve ", with reference to the accompanying drawing 4 of its patent application document With accompanying drawing 5, its technical scheme is：" air bleeding valve of the invention includes main body cover 2, and the top housing department that connecting tube 11 links Divide 4 and accommodate the lower housings part 6 of float 5；The direction of central longitudinal axis 16 of the float 5 along the shell 2 Movably support.The top surface 18 of the float 5 is substantially what plane was constituted, and exhaust is arranged at the top of lower housings part 6 Mouth 28, the exhaust outlet 28 is controlled by the potted component 29 being fixed in the upper plane 18 of float 5.The potted component 29 It is the flexible film that is made up of such as polymer and with sealing area 30, the exhaust outlet is completely covered in sealing area 28, the potted component 29 is fixed on fixed position 35 by seal section.”

The patented technology is analyzed, show that the drawbacks of patent application technology is maximum is：Potted component 29 is by for example gathering The flexible film that compound is made, although it is integrally fixed in the upper plane 18 of float 5, is running into acutely concussion float 5 During floating, potted component 29 is attached on exhaust outlet 28, prevents the fuel oil of fuel tank internal excessive；If now fuel tank internal is because of concussion Hyperbar is produced, when float 5 declines, potted component 29 is withstood on exhaust outlet 28 and can not withdrawn by hyperbar, is caused in fuel tank Portion's hyperbar can not release.

The shape of other float 5 is the cylindrical shape of the same thickness up and down, is stuck in the possibility in lower housings part 6 Than larger.

Above-mentioned drawback must be solved.

Utility model content

In order to solve in the prior art, " potted component is the flexible film that is made up of such as polymer, although it is solid It is scheduled in the upper plane of float, when acutely concussion float floats, potted component is attached on exhaust outlet, prevents fuel tank internal Gasoline is excessive；If now fuel tank internal is because of concussion generation hyperbar, when float declines, potted component is withstood on exhaust by hyperbar It can not be withdrawn on mouthful, cause fuel tank internal hyperbar not release." technical problem, the utility model proposes a kind of automobile The technical scheme of tank filling gas exhausting valve.

The utility model is realized by using following technical scheme.

Manufacture and design a kind of automotive oil tank oiling gas exhausting valve, including：

On one cover, it is described on be stamped ejection nozzle；Upper lid links with housing, and a float, a bottom and housing are set in housing Lower edge connection.

The ejection nozzle of the upper lid is connected by output channel with the taper delivery outlet inside upper lid.

There is a hollow housing cone point on the top of the housing, after housing and top cap knot, the housing taper Tip is in close contact with taper delivery outlet.

The float includes a float tip and float inner chamber, when float is placed in the housing hollow of housing, float point The shape at end and the housing cavity horn mouth of housing coincide.

The body shape of the float is a up-thin-low-thick cylinder, and the circle diameter of bottom margin is more than top edge Circle diameter.

The top surface of the float sets some through holes, and through hole reaches up to the bottom surface of float from the top surface of float.

Some guiding slanted bars are set on the housing hollow inwall of the housing, and the guiding slanted bar is in the bottom of housing hollow To be narrow, at the top of housing hollow be it is wide, it is some to be oriented to the guide space that slanted bars are formed in housing hollow, it is whole slightly larger than float Shape.

Spring is accommodated in the bottom recesses of the float, the other end of spring is placed at the spring fixed bit of bottom.

Some open-works are set on the side face of the housing.

Compared with prior art, the utility model has the advantages that:The body shape of float is a up-thin-low-thick cylinder Body, is oriented under the guiding of slanted bar on housing hollow inwall, floats and falls all very smooth, is not in the phenomenon of card；It is embedding It is that hard material is made to enter the bell-mouthed float tip of housing cavity, is not in that can not depart from because inner and outer air pressure has pressure difference Phenomenon.

Brief description of the drawings

Fig. 1 is a kind of exploded perspective view of all parts of automotive oil tank oiling gas exhausting valve of the utility model；

Fig. 2 is a kind of schematic diagram of the upper lid of automotive oil tank oiling gas exhausting valve of the utility model；

Fig. 3 shows for a kind of hollow housing housing cone point of automotive oil tank oiling gas exhausting valve of the utility model It is intended to；

Fig. 4 is in the utility model a kind of the housing cavity horn mouth and housing hollow of automotive oil tank oiling gas exhausting valve The schematic diagram of some guiding slanted bars is set on wall；

Fig. 5 is that a kind of body shape of the float of automotive oil tank oiling gas exhausting valve of the utility model is one up-thin-low-thick Cylinder schematic diagram；

Overall schematic diagram when Fig. 6 is a kind of actual use of automotive oil tank oiling gas exhausting valve of the utility model.

Embodiment

In order to further illustrate method of the present utility model, in conjunction with preferred embodiment of the present utility model shown in the drawings It is described in detail, but the embodiment is only to provide explanation to be used with explanation, it is impossible to it is of the present utility model special for limiting Sharp protection domain.

As shown in Fig. 1~Fig. 6, manufacture and design a kind of automotive oil tank oiling gas exhausting valve, including：

Lid 2 on one, the upper lid 2 has ejection nozzle 21；Upper lid 2 links with housing 3, and a float 4, a bottom are set in housing 3 Lid 6 is connected with the lower edge of housing 3.

The ejection nozzle 21 of the upper lid 2 is connected by output channel 23 with the taper delivery outlet 22 inside upper lid 2.

There is a hollow housing cone point 31 on the top of the housing 3, after housing 3 and the link of upper lid 2, the shell Body cone point 31 is in close contact with taper delivery outlet 22.

The float 4 includes a float tip 41 and float inner chamber 42, when float 4 is placed in the housing hollow 35 of housing 3 When, the shape of float tip 41 is coincide with the housing cavity horn mouth 32 of housing 3.

The body shape of the float 4 is a up-thin-low-thick cylinder, and the circle diameter of bottom margin 45 is more than top The circle diameter at edge 46.

The top surface of the float 4 sets some through holes 47, and the top surface of through hole 47 from float 4 reaches up to the bottom surface of float 4.

Some guiding slanted bars 36 are set on the inwall of housing hollow 35 of the housing 3, and the guiding slanted bar 36 is empty in housing The bottom of chamber 35 is narrow, is width at the top of housing hollow 35, and the guiding that some guiding slanted bars 36 are formed in housing hollow 35 is empty Between, slightly larger than the global shape of float 4.

Spring 5 is accommodated in the bottom recesses 42 of the float 4, the other end of spring 5 is placed in the spring fixed bit 61 of bottom 6 Place.

As shown in fig. 6, setting some open-works 33 on the side face of the housing 3.

The purpose for setting open-work 33 is that fuel oil swimmingly can enter housing 32 from open-work 33

Within, to the formation buoyancy of float 4.

As shown in figure 5, the effect of through hole 47 is float 4 is substantially entirely immersed among fuel oil.

As shown in figure 1, the effect of spring 5 is that booster action is played to the buoyancy of float 4, the size of the elastic force of spring 5, with floating Making material, the immersion area of son 4 are relevant.

As shown in figures 1 to 6, the outer rim of upper lid 2 is fixed on the mounting hole of fuel tank.Ejection nozzle 21 connects a conduit, The gas of discharge is imported into pressure discharge device and fragmentary fuel oil is imported into retracting device.

The utility model has an advantage that, when fuel tank is integrally overturned, control valve of the present utility model can close oil Case is oil-proof, greatly facilitates vehicle and the safety of personnel.

Above content is to combine specific preferred embodiment further detailed description of the utility model, it is impossible to Assert that specific implementation of the present utility model is confined to these explanations.For the ordinary skill of the utility model art For personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, should all be regarded To belong to protection domain of the present utility model.

Claims (3)

1. a kind of automotive oil tank oiling gas exhausting valve, it is characterised in that the control valve includes：

Covered on one（2）, the upper lid（2）There is ejection nozzle（21）；Upper lid（2）With housing（3）Link, housing（3）It is interior to set one to float Son（4）, a bottom（6）With housing（3）Lower edge connection, the housing（3）Top have a hollow housing cone point （31）, work as housing（3）With upper lid（2）After link, the housing cone point（31）With taper delivery outlet（22）It is in close contact.

2. automotive oil tank oiling gas exhausting valve according to claim 1, it is characterised in that the float（4）Including one Float tip（41）With float inner chamber（42）, work as float（4）It is placed in housing（3）Housing hollow（35）When middle, float tip （41）Shape and housing（3）Housing cavity horn mouth（32）It coincide.

3. automotive oil tank oiling gas exhausting valve according to claim 1, it is characterised in that the housing（3）Housing Cavity（35）Some guiding slanted bars are set on inwall（36）, the guiding slanted bar（36）In housing hollow（35）Bottom to be narrow, In housing hollow（35）Top is width, some guiding slanted bars（36）In housing hollow（35）The guide space of middle formation, is slightly larger than Float（4）Global shape.