CN201531901U

CN201531901U - Gas outlet valve assembly of lighter

Info

Publication number: CN201531901U
Application number: CN2009201994324U
Authority: CN
Inventors: 史雪玲
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-10-22
Filing date: 2009-10-22
Publication date: 2010-07-21
Anticipated expiration: 2019-10-22

Abstract

The utility model relates to lighter parts, in particular to a gas outlet valve assembly of a lighter fuel box, which does not need adjust flames, is provided with a fastener mechanism and comprises a valve body, a valve cover, a gas valve needle component, a valve core and an O-shaped seal ring, wherein the gas valve needle component consists of a gas valve needle with an axial through hole, an inner seal ring sheathed on the gas valve needle, a compression spring, and a T-shaped rubber seal plug arranged at the tail part of the axial through hole of the gas valve needle; the valve core consists of upper and lower round clamping filtering pieces with flat bottom surfaces; the valve core is arranged at the bottom of the valve body; and the middle parts of the two flat bottom surfaces are respectively provided with the through hole. The gas outlet valve assembly of the lighter is characterized in that the top of the round valve body is opened; the valve cover inserts into the inner wall of the valve body from the top to form interference fit; the top of the circumferential surface or the outer wall close to the top of the valve body is provided with a big convex ring with lower edge capable of containing the O-shaped seal ring; and a small fastener convex ring is arranged below the big convex ring of the circumferential surface of the valve body, or two or more fastener convex blocks are uniformly distributed on a same section thereof, and the small fastener convex ring or two or more fastener convex blocks are buckled with a gas outlet of the fuel box. As the gas outlet valve assembly is an integrated mechanism, the fastening mechanism matched with the gas outlet of the fuel box is arranged at the circumferential surface of the valve body, the gas outlet valve assembly can be pressed and inserted in the gas outlet by only arranging a containing cavity matched with the shape of the valve body on the gas outlet of the fuel box.

Description

Lighter air outlet valve assembly

Technical field

The utility model relates to the lighter parts, the specifically a kind of air outlet valve assembly that need not regulate the lighter gas box that has snap device of flare.

Background technology

Existing lighter air outlet valve assembly general using screw thread is regulated flare, be by valve body, valve seat, be provided with the air valve pin of axially extending bore, be set in the inner seal ring on the air valve pin, holddown spring and be inserted in the air valve needle shaft and constitute to the T of through hole tail end shape sealing-plug, the air valve pin is inserted in the relative slotting sliding chamber that forms with valve body of valve seat, wherein valve seat is provided with external screw thread, air outlet valve assembly promptly is commonly called as " white screw ", for it being installed in the gas outlet of right gas tank, must be provided with corresponding internal thread or weld one in the exit of right gas tank and have internal thread, be commonly called as the cup-shaped plastic member of " interior head " and it is complementary, the bottom at " interior head " or gas box screw thread place is provided with the air inlet through hole, be provided with spongy layer in the inner chamber, sponge holder nail, the fixed cover of drainage core and drainage core, air outlet valve assembly is installed on the right gas tank by the external screw thread on the valve seat, thereby and reaches the purpose that adjusts tolerance by the compression regulated sponge of rotation air outlet valve assembly.Because internal thread that need setting is complementary in the gas outlet of gas box or " interior head ", its injection mold structure and complexity thereof, injection moulding efficient is also low, production cost increases, and air outlet valve assembly also is unfavorable for adopting the automation assembling by the mode that screw thread is installed on the right gas tank, causes the production cost of complete machine to increase.

The utility model content

The utility model purpose is to overcoming the defective that above-mentioned prior art exists, and a kind of not only simply but also reliable lighter gas tank air outlet valve assembly is provided.

The utility model realizes that the technical scheme of above-mentioned purpose is as follows: comprise valve body, valve gap, by the air valve pin of axially extending bore, be set in inner seal ring, the holddown spring on the air valve pin and be located at the air valve needle shaft to the T of through-hole tail shape rubber seal plug constitute gas the needle assembly, clamp spool and the O RunddichtringOs that air filter piece constitutes by two circular flat bottom faces up and down.Spool is arranged on the bottom of plastics valve body, all establishes passage in the middle of two circular flat bottom faces.Have and it is characterized in that: valve body is inserted in described circular valve open top, valve gap from the top inwall forms that interference is close joins; The top of described valve body periphery or be provided with the big bulge loop that the lower edge face can hold the O RunddichtringO near the outer wall at top; Be provided with the little bulge loop of buckle below the big bulge loop of described valve body periphery or fasten along 2 the buckle projection and the gas box gas outlets of fire more than 2 that evenly distribute on the same cross section.

Compared with prior art, because air outlet valve assembly of the present utility model is an integral type mechanism, on the valve body periphery, be provided with the snap device that cooperates with gas tank, only need be arranged on the gas outlet of gas box and the valve body shape cavity volume that fastens, air outlet valve assembly can press be inserted in the gas outlet and the buckle projection barb by the valve body periphery on the lower edge face of the gas outlet of gas box snap fastener.Because the gas outlet of gas box need not be provided with screw thread, so its injection mold structure is simple, the injection moulding cost is low, and presses down the air outlet valve gas box of just packing into by a simple tools, helps that lighter is carried out automation and assembles.

Below in conjunction with the drawings and specific embodiments the utility model is further described:

Description of drawings

Accompanying drawing 1 is the utility model specific embodiment schematic appearance;

Accompanying drawing 2 is the utility model specific embodiment structure cutaway view;

Accompanying drawing 3 is the utility model specific embodiment STRUCTURE DECOMPOSITION figure;

Accompanying drawing 4 is another specific embodiment STRUCTURE DECOMPOSITION of the utility model figure;

Accompanying drawing 5,6,7 is the assembling process cutaway view of the utility model specific embodiment and gas box;

The cutaway view of the gas box gas outlet that accompanying drawing 8 assembles with it for the utility model;

Accompanying drawing 9 is that the utility model valve body one changes schematic appearance;

The specific embodiment

Specifically implement shown in Fig. 2,3,8: lighter gas tank air outlet valve assembly, comprise valve body 8, valve gap 1, by the air valve pin 4 of axially extending bore, the T shape rubber seal plug 5 that is set in inner seal ring 2, the holddown spring 3 on the air valve pin 4 and is located at air valve pin 4 axially extending bore afterbodys constitute gas the needle assembly, clamp spool 10 and the O RunddichtringOs 9 that air filter pieces 7 constitute by two circular

flat bottom faces

62,84 up and down.Spool 10 is arranged on the bottom of valve body 8, circular valve 8 open tops, the top of cup-shaped valve gap 1 has one to live with air valve pin 4 and to join through holes, outer wall inserts the opening part at round plastic valve body 8 tops, form with valve body 8 inwalls that interference is close joins, inner then form the sliding chamber of needle assembly, the needle assembly passes the through hole of valve gap 1, is arranged in the sliding chamber; The bottom of clicker 6 is provided with planar base surface 62, the intracavity bottom of plastics valve body 8 is provided with planar base surface 84, planar base surface 62, all be provided with passage in the middle of 84, the bottom inner chamber interference fit of the outer wall of clicker 6 and plastics valve body 8 clamps air filter piece 7, between form sealing surface, airtight isolation is carried out in combustion gas, constitute concrete spool 10, make when lighter is lighted a fire, on draw air valve pin 4, combustion gas in the gas box can only be passed through the outside exhaust of top axially extending bore of through hole → air filter piece 7 → planar base surface 62 through holes → air valve pin cross-drilled hole 12 → air valve pin 4 of planar base surface 84, and mix with air, the igniter of lighter produces Mars combustion gas is lighted; Planar base surface 62, planar base surface 84 have at least one side to be provided with cavity 72, and the area of section of cavity 72 promptly is air filter piece 7 effective drift diameters, and the big more gas emission of latus rectum is many more, and the flare of lighter is just big more; The top of plastics valve body 8 peripheries or be provided with big bulge loop 82 near the outer wall at top, O RunddichtringO 9 are arranged on below the lower edge face 821 of big bulge loop 82, and O RunddichtringO 9 is isolated gas in the gas box directly to external leakage; Be provided with the little bulge loop 83 of buckle below the big bulge loop of valve body periphery, the lower edge face 14 of its upper edge face 831 and the bottom of gas box gas outlet 13 is back-off mutually.

Shown in Fig. 5,6,7,8, assembling process in conjunction with air outlet valve and gas box, embodiment is described further: because gas box generally is to use rigidity plastics, in order to assemble with the rigidity gas box more smoothly, so adopt the reasonable plastics of elasticity to make valve body 8, we specifically are with the material of POM plastics as valve body 8.Owing on valve body 8 peripheries, be provided with the little bulge loop 83 of buckle, on 83, form a upper edge face 831, at 13 places, gas outlet of gas box, upper section segmentation 16 internal diameters are big, lower section segmentation 15 internal diameters are little, and the bottom is provided with the annular steps with lower edge face 14.The assembling process of air outlet valve assembly and gas box is as follows: 1, earlier air outlet valve is put into gas outlet 13, because the bigger diameter less than 15 segmentations of gas box gas outlet of diameter of section below the little bulge loop 83 of valve body 8 buckles is so valve body 8 can rest on the position of diagrammatic sketch 5; 2, by a simple tools, top to valve body 8 presses down separately, because the external diameter of the little bulge loop 83 of buckle is bigger than gas box gas outlet 15 segmentation diameters, pressing down in the process the little bulge loop 83 of buckle can be subjected to the external force effect and inwardly shrink, pass gas outlet 15 segmentations, below the annular steps of the lower edge of gas outlet face 14, rebound away, the upper edge face 831 of the little bulge loop 83 of the buckle of valve body 8 forms barb with the annular steps 14 of the lower edge face of gas box gas outlet 13 and engages, valve gap 1 does not change follows valve body 8 with valve body 8 relative positions and moves down, and has arrived the position of schematic diagram 6; 3, pass through instrument, separately valve gap 1 is pressed down, under the effect of downforce, valve gap 1 relative valve body 8 is done further and is moved down, and the sliding chamber of air valve needle assemblies is placed in compression, holddown spring is shortened, spring produces bounce, and by air valve pin 4 and T shape rubber seal plug 5, the through hole of locking clicker 6 is closed air valve, finish assembling, see schematic diagram 7.For the more effective little bulge loop 83 of buckle that makes inwardly shrinks, it is as follows to take measures: 1, make the transition inclined-plane at the little bulge loop 83 lower edge faces 832 of buckle; 2, the following peripheral cylinder is provided with thin-wall regions 85 on the little bulge loop 83 of buckle of plastics valve body 8 peripheries, with the gas box assembling before at the inner face of thin-wall regions 85, without any the conflict thing.Thin-wall regions 85 wall thickness are proper at 0.3-0.5mm; The evagination amplitude of the little bulge loop 83 of buckle is proper between 0.10-0.25mm.After making the assembling of air outlet valve and gas box, can under inner saturated pressure of gas box and external pull acting in conjunction, not break away from easily, the lower edge of finishing the valve gap 1 after the assembling preferably arrives the little bulge loop of buckle 83 positions, prevents that effectively the little bulge loop 83 of buckle from inwardly shrinking, and causes valve body to break away from gas box.In order to make air outlet valve and gas box be loaded into easy disengaging difficulty, had better not be of the assembling one-time-reach-place of the valve body 8 of air outlet valve with valve gap 1, but be assembled into as Fig. 1, position shown in 2, valve gap 1 need not insert too dark, can allow the head of air valve pin 4 expose through hole on the valve gap 1, can fuse valve body 8 and valve gap 1 and get final product, like this air outlet valve with gas box assembling before, empty thin-wall regions 85 in the following peripheral cylinder forms on the little bulge loop of the buckle of valve body 8 83 positions, the space of contracting in having fully, press down valve gap 1 again in process final stage then, arrive the final rigging position of air outlet valve with the gas box assembling.If the lighter gas box is made by the reasonable material of elasticity certainly, 15 segmentations of the gas outlet 13 of gas box have outer resilience energy power fully, air outlet valve valve body 8 just not necessarily needs thin-wall regions 85, the zone inwall also not necessarily needs cavity to guarantee the space that the little bulge loop 83 of buckle inwardly shrinks, valve gap 1 also can settle at one go with valve body 8 assemblings, with the assembling process of gas box in, extend out by the internal diameter of 15 segmentations of the gas outlet 13 of gas box and to finish snap-fitted.

Another embodiment as shown in Figure 4, we are provided with one in the bottom and enclose the cylinder ring of stretching toward the lower edge on the basis of the embodiment shown in Fig. 2,3, the endoporus interference fit of cylinder ring is inserted the drainage core that porous material is made, according to siphonage capillaceous, the drainage core is introduced air outlet valve to liquid combustion gas.

Shown in Figure 9 is by the outside drawing that replaces little bulge loop 83 situations of buckle along 2 the buckle projections 835 that evenly distribute on the same cross section, with the engaging in the process of gas box, can play with the same effect of little bulge loop 83 structures of buckle.

Claims

1. lighter gas box air outlet valve assembly: comprise valve body, valve gap, by the air valve pin of axially extending bore, be set in inner seal ring, the holddown spring on the air valve pin and be located at the air valve needle shaft to the T of through-hole tail shape rubber seal plug constitute gas the needle assembly, clamp spool and the O RunddichtringOs that air filter piece constitutes by two circular flat bottom faces up and down, spool is arranged on the bottom of valve body, all be provided with passage in the middle of two circular flat bottom faces, have and it is characterized in that: valve body is inserted in described circular valve open top, valve gap from the top inwall forms that interference is close joins; The top of described valve body periphery or be provided with the big bulge loop that the lower edge face can hold the O RunddichtringO near the outer wall at top; Be provided with the little bulge loop of buckle below the big bulge loop of described valve body periphery or fasten along the buckle projection and the gas box gas outlet snap device that evenly distribute more than 2 or 2 on the same cross section.

2. lighter gas tank air outlet valve assembly according to claim 1 is characterized in that: the described little bulge loop of plastics valve body periphery buckle or be provided with the transition inclined-plane along the buckle projection lower edge face that evenly distributes more than 2 or 2 on the same cross section.

3. lighter gas tank air outlet valve assembly according to claim 1 is characterized in that: the following peripheral cylinder forms thin-wall regions on the little bulge loop of plastics valve body periphery buckle.

4. lighter gas tank air outlet valve assembly according to claim 1 and 2 is characterized in that: plastics valve body bottom is provided with downward extension annulus, is plugged with the drainage core that is complementary with its internal diameter.