CN2292986Y

CN2292986Y - Lighter capable of recharging fuel

Info

Publication number: CN2292986Y
Application number: CN 96201460
Authority: CN
Inventors: 佘德志
Original assignee: Tak Fai International (group) Ltd; Treasure Time Enterprises Ltd
Current assignee: Polycity Enterprise Ltd
Priority date: 1996-01-11
Filing date: 1996-01-11
Publication date: 1998-09-30
Anticipated expiration: 2006-01-11

Abstract

The utility model relates to a lighter which is capable of recharging fuel, comprising a container having an opening for filling fuel. The opening formed by the end part of a tapered passage. A tapered plug is positioned in the passage. When fuel is arranged in the container, pressure in the container is higher than atmospheric pressure. The tapered plug is pushed to the opening of the container via a force generated by pressure difference, and then the tapered plug is firmly pressed in the passage for sealing the passage via gas. In the process of inflation, when the fuel is injected in the container, the force of the tapered plug is upward, and the tapered plug is separated from the passage. When the process of inflation is completed, the tapered plug is clamped back in the sealed passage due to the restoration of an original force, and thus fuel loss is avoided.

Description

Can fill the lighter of fuel again

The utility model relates to lighter, for example cigarette lighter.

The butane lighter in modern age is very popular.They are used to the igniting of stove, barbecue and cigarette in many ways.The butane lighter of various ways also can be used as torch so that illumination to be provided.

Many butane lighter, particularly those all are disposable as cigarette lighter; That is, the structure of lighter is very simple and cheap, can be dropped in case gaseous fuel just uses up.Yet many butane lighter comprise that the structure (or from function or from decorating) of some cigarette lighters goes up, and it is irrational just abandoning after fuel uses up.So wishing has a kind of like this butane or other gas lighter, its structure can be simply and is inflated body effectively again, and can fuel be stored in wherein with the mode of leakproof.

Existing lighter generally all is to close lid to cut out the fuel inlet with twisting.Though the employing blind nut still has a lot of fuel to spill and lose.Therefore, existing inflatable lighter does not obtain the user up to now and likes widely.

The utility model provides a kind of lighter that can fill fuel again, comprises that one has the container of the opening that a fuel therefrom injects.Opening is made of an end of a tapered channel.The taper embolism is arranged in passage.When container was equipped with fuel, the pressure in the container was greater than atmospheric pressure.The power that its pressure differential produced makes the embolism pressurized push vessel port to, and embolism is pressed in the passage securely with the sealing gland passage.When fuel was injected into container, the power on the embolism was reverse in gas replenishment process, and embolism is become to separate relation with passage.In case when gas replenishment process was finished, the recovery of former power made the embolism card get back to seal channel in the passage, the result does not just have waste of fuel.

Fig. 1 is the side view of the utility model lighter part when opening and dissecing, this moment lighter gassy fuel be in sealing state;

Fig. 2 is the enlarged drawing of the following left part of lighter of the present utility model as shown in Figure 1;

Fig. 3 is the part of the present utility model lighter opening and dissect and fills the side view of fuel gas bottle part again and again, is presented at the lighter of the present utility model in the gas replenishment process

Fig. 4 is left part and the part enlarged drawing that fills fuel gas bottle more shown in Figure 3 under the lighter of the present utility model;

Fig. 5 is lighter of the present utility model and the local side view that fills the fuel gas bottle part again of opening and dissecing, and shows when the suitable restraint device that do not have that employing is connected with the pipe close of lighter the situation of the lighter in the gas replenishment process again.

Preferred embodiment of the present utility model all is illustrated in the mentioned accompanying drawing of this literary composition.Identical parts adopt identical label sign in institute's drawings attached.

Referring to Fig. 1, shown in the figure the utility model lighter 10 that is in inflation back sealing state.This lighter comprises an installing rack 11, general being seen other the parts flint wheel 12, a nozzle operation bar 13, a flame regulating wheel 14, a fan housing 15 is installed also on it in lighter is installed, and an installing rack pedestal 16.Fan housing surrounds the nozzle (not shown) of lighter, gaseous fuel when lighter uses, and for example butane sprays from this nozzle.The flame regulating wheel is regulated the quantity by the fuel of this nozzle, and the flame height that lighter produced.When flint wheel rotates and during its rough edge friction calcium carbide (not shown) terminal, lighted by the fuel that nozzle sprayed.

Still see also Fig. 1, installing rack is attached to a top that the hollow fuel container 17 of inner ribs 18 arranged, and ribs is in order to strengthen the intensity of hollow body.The gaseous fuel of lighter is contained in the fuel container.Cigarette lighter nozzle is to be connected by the relation that pipe 19 is communicated with the inside of fuel container.Gaseous fuel imports in the containers by an opening 21 that is formed on the surface of container, embolism 25 with seal of vessel in the mode that meshes be engaged in wherein.

Gaseous fuel preferably is the mixture of butane and propane, and wherein butane accounts for the molecular weight of mixture 70-85%, and propane accounts for the molecular weight of mixture 15-30%.When fuel container was full of by gaseous fuel, the vapour pressure Pt in the container was approximately 3-5Kg/cm in the time of 20 ℃ ²This vapour pressure is greater than the outer atmospheric pressure Pe of fuel container.Because to low pressure, embolism is subjected to a desire and pushes embolism to the effect of power that container surrounds the outside of opening 21 fluid from high-pressure spray.

Referring to Fig. 2, can be clear that therefrom embolism is tapered substantially, its first end, promptly extend towards vessel port on its summit, its second end, promptly its base surface is to internal tank.The base portion of embolism is hollow.

Opening 21 has the passage 22 oblique or taper in narrow neck zone to be constituted by one.In preferred embodiment, opening is formed by channel surface 22-A to 22-F and 22-X.Its rear portion or second end are formed by channel surface 22-F.It has a wideest diameter, and slope inwardly (that is, its diameter reduces when passage extends outside container from the inside of container) acutangulates to the right angle (, diameter reduces rapidly when passage extends) outside container.The outside of very close channel surface 22-F of channel surface 22-E and the more close container of specific surface 22-F.Channel surface 22-E is with a basic inclined at acute angles littler than the oblique angle of channel surface 22-F.

Channel surface 22-D also curves inwardly near channel surface 22-E very much, is level basically with the part on outside immediate this surface of container.(that is, it is transverse to the vertical axis of lighter, and this vertical axis extends from the container top of container bottom to the installing rack place at opening place).Channel surface 22-X interface channel surface 22-D and 22-C.The very close channel surface 22-X of channel surface 22-C, and be arranged essentially parallel to vertical axis.The very close channel surface 22-C of channel surface 22-B, and outward-dipping.Channel surface 22-A constitutes anterior or first end of passage, and very near channel surface 22-B, and be perpendicular.Therefore, the wide diameter of opening that is located at the outside of container is the wide diameter of channel surface 22-B basically, and the diameter with channel surface 22-A is identical basically for it.This diameter is narrower than the diameter of channel surface 22-F basically.

In preferred embodiment of the present utility model, embolism reduces diameter step by step.That is, embolism has outer surface 25-A to 25-F and the 25-X of difference respective channel surface 22-A to 22-F and 22-X.The base portion of the very close embolism of outer surface 25-F.It inwardly tiltedly and diameter be the wideest in the embolism all surface.The minimum diameter of surface 25-F is slightly larger than the narrow diameter of channel surface 22-F.Outer surface 25-E is very near outer surface 25-F, and slopes inwardly with an approximate angle identical with channel surface 22-E.The outer surface part 25-E of outer surface 25-X diameter minimum and the outer surface part 25-D of diameter maximum.Outer surface 25-D curves inwardly, and the part on the most close embolism top, this surface is level basically like this.It is wideer than channel surface 22-the narrowest former diameter basically that outer surface 25-D leaves embolism top that part of diameter farthest.

Outer surface 25-C also is located substantially on the direction parallel with vertical direction near outer surface 25-D very much, and its diameter summary is littler than channel surface 22-C's.

Outer surface 25-B is very near outer surface 25-C and inwardly oblique.The very close outer surface 25-B of outer surface 25-A, and curve inwardly to form the domed end of embolism.

In preferred embodiment, embolism is made by a kind of compressible plastic material.Atmospheric pressure Pe outside the vapour pressure Pt container in the container is big must be many more, and embolism cooperates tightly more in passage, and is effective more and airtight against the formed sealing of passage by embolism.Therefore, embolism is identical with the mode of action of an O-ring seals.In order to promote sealing effectiveness, outer surface 25-E has very high imparting a smooth finish degree or mirror finish.Channel surface 22-E can have identical fineness.

By hollow in the formed embolism base portion of inner surface 25-G is darker with wide suitable orientation to make things convenient for embolism to cause because of the different power that produced of inner and outer air pressure Pt and Pe.

When bigger than the diameter of the narrowest part of corresponding inwardly oblique channel surface by the largest portion of (1) each inwardly oblique outer surface, (2) the foremost part of the foremost part of outer surface 25-D and channel surface 22-D is the relation of fitting, its binding face parts transversely can prevent that embolism is pushed out opening when these two power that factor produced of direction of power are higher.

Embolism will keep and the secure seal of passage relation, when the gaseous fuel in container is depleted to air pressure Pt in the container and is equal to or less than atmospheric pressure Pe outside the container till.

How Fig. 3 and 4 demonstrations give lighter fill gas fluid fuel of the present utility model.The port 31-A of the bottle neck 31 of gaseous fuel gas filling bottle 30 is filled in the opening 1 of fuel container of lighter.Port 31-A helps embolism is touched into container.When port 31-A cooperated channel surface 22-B, bottle neck was activated.(channel surface 22-B is aforesaid outwards tiltedly.This is the bottle neck that different-diameter is arranged in order to adapt to.) coming from the gaseous fuel in the bottle, Pb is more much bigger than atmospheric pressure Pe for its vapour pressure, flows through nozzle 31, and continues embolism is upwards pushed in the container, thereby opens the path between embolism and the passage.Gaseous fuel flows into the container 17 from bottle 30 shown in arrow in Fig. 3 and 4 then.Embolism will keep and the passage spaced relationship, and gaseous fuel will continue to flow shown in Fig. 3 and 4, and the vapour pressure Pt in fuel container equates with air pressure Pb in the bottle.

In time take away bottle, and under the effect of the power that pressure P t is to a certain degree produced greater than Pe, embolism 25 will be forced to and 22 one-tenth sealing relationships of passage, as illustrated in fig. 1 and 2 this moment.Lighter can be in stand-by state more like this.

Fig. 5 helps to be presented at contingent situation when not using some device to be limited in embolism with the very approaching position of passage 22 in the gas replenishment process.In lighter 100, embolism 25 may upwards be blown to position P2.When the inflation end, when bottle was taken away from container, embolism 25 was with the sealing station that may finally be forced into owing to the profile of its profile and passage as illustrated in fig. 1 and 2, yet before this takes place, gaseous fuel will leak out with high speed.

So, in preferred embodiment of the present utility model, adopt a device with embolism be limited in the very approaching position of passage on, it can be a mesh screen, when it is on the sealing station as illustrated in fig. 1 and 2, just is positioned at the embolism top.In the most preferred embodiment shown in Fig. 1-3, adopt one from the pipe 19 downward extensions 20 that extend.This extension long enough, its end are raised to above second end of passage on the top of embolism before, with the hollow base of the embolism relation that becomes to fit.Because this structure, embolism in gas replenishment process, keep and the passage spaced relationship, when charge operation stops, get back to sealing state as illustrated in fig. 1 and 2 immediately then.So just there is not the gaseous fuel leakage.

The lighter that can fill fuel again of one the best has below been described.Be to be understood that person skilled in the art are reading on the basis of the content that the utility model disclosed, also can be to making many variations for layout and the use of explaining parts that principle of the present utility model describes and illustrate in this literary composition institute, material, parts.These variations all will be included in principle of the present utility model and the scope.

Claims

1. the lighter that can fill fuel again comprises installing rack, flint wheel, nozzle operation bar, flame regulating wheel, fan housing, installing rack pedestal and fuel container, it is characterized in that:

Described fuel container has a described fuel can therefrom enter the opening of described container, also has the sealing device of the described opening of a sealing,

Wherein, when described container was equipped with fuel, the internal pressure in the described container was greater than the outer external pressure of described container, and because described internal pressure makes described sealing device continue the described opening of sealing greater than the power that described external pressure produced.

2. lighter as claimed in claim 1, it is characterized in that: described container has a passage with first and second channel end, described first passage end constitutes described first opening, described the second end is positioned at the inside of described container, described container has an embolism, when described container is equipped with fuel, it becomes sealing relationship with described passage, wherein, when described container is equipped with fuel, internal pressure in the described container is greater than the outer external pressure of described container, and the effect of the power that produces greater than described external pressure owing to described internal pressure, and described embolism keeps the sealing relationship with described passage.

3. lighter as claimed in claim 2 is characterized in that, described embolism has the outer base portion of a hollow.

4. as claim 2 or 3 described lighter, it is characterized in that, described second channel end is greater than described first passage end, described embolism has one first embolism end and one second embolism end, the second embolism end is greater than the first embolism end and described first passage end, described embolism is arranged in described passage, and the described second embolism end is towards described internal tank.

5. lighter as claimed in claim 4, it is characterized in that, described embolism moves back and forth between the primary importance and the second place, when described container is equipped with fuel, described primary importance becomes sealing relationship with described passage, and when fuel was injected into container, the described second place and described passage separated.

6. lighter as claimed in claim 5 is characterized in that, described container comprises one when fuel is injected in the described container, described embolism is remained on the holding device of the described second place.