CN201173322Y

CN201173322Y - Lighter gas charging valve

Info

Publication number: CN201173322Y
Application number: CNU2008200349652U
Authority: CN
Inventors: 黄逢竞
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-04-03
Filing date: 2008-04-03
Publication date: 2008-12-31
Anticipated expiration: 2018-04-03

Abstract

The utility model relates to a charge valve for a lighter, which comprises a retainer spring, a seal ring, a charge valve core and a valve seat. A valve seat jacket is provided with a straight barrel-shaped valve sleeve; the valve seat and the valve sleeve are connected into a whole; a charge outlet communicated with the sliding cavity of the valve core is arranged at the top of the valve sleeve; an outer seal ring is arranged on the column face of the charge valve, and a clamping structure matched with an air box is arranged on the column face of the valve sleeve. When in use, only a holding cavity matched with the valve sleeve is arranged at the bottom of the air box of the lighter, a fluke and a peristome on the inner side of the holding cavity are clamped together, and sealed with the outer seal ring arranged on the column face of the charge valve through the clamping structure arranged on the outer wall of the valve sleeve. Therefore, the ultrasonic welding is not required, and the way of interference matching with the air box is also not required to be adopted for the installation, so as to achieve the sealing purpose. The charge valve is suitable for being used in the air box made of common materials, thereby ensuring the materials of a complete machine to be reduced greatly.

Description

The lighter gas charging valve

Technical field

The utility model relates to a kind of gas charging valve, specifically is exactly the lighter gas charging valve.

Background technique

Lighter can be divided into two classes from the words of classifying working life at present: inflatable lighter or disposable lighter, disposable lighter are except that individual part, and most of plastic components that adopts belongs to low grade products, and is cheap; Inflatable lighter adopts metal shell usually, class is higher, fashion youth and successful personage like using, particularly disposable lighter is just abandoned after using, not only waste material but also not environmental protection, therefore the disposable lighter of import is imposed the tariff of the great number more much higher abroad, so be provided with inflatable valve on the existing lighter, particularly Chu Kou lighter than inflatable lighter.

Present gas charging valve constitutes holddown spring by inflation spool, seal ring helical spring usually, the inflation spool is the cylindrical member that cylinder is provided with annular convex shoulder, the inflation spool is provided with dark blind hole vertically, seal ring is inserted in to convex shoulder from the blind hole opening, and the cylinder of close seal ring is provided with the cross-drilled hole that is communicated with blind hole and forms filling channel.Holddown spring one end is enclosed within on the other end of inflation spool.To inflate spool with the gas tank mouth during inflation heads into cross-drilled hole to be under the seal ring be communicated with the gas tank inner chamber in gas tank and inflates, after finishing, inflation extracts gas tank, the inflation spool outwards resets under the pressure of opposite side holddown spring promotes cross-drilled hole is got back on the seal ring, and seal ring forms sealing under the clamping of convex shoulder and gas tank bottom.Traditional inflation spool all is with copper material car system.Processing charges and cost of material are higher, and along with soaring of recent copper material price, the cost of gas charging valve is higher.In addition, its mounting type generally all is earlier gas charging valve to be embedded on the gas tank bottom by injection molding way, and then gas tank bottom and gas tank body linked into an integrated entity by ultrasonic welding, but the reason owing to vibration in the ultrasonic welding termination process causes gas charging valve to damage probably, has reduced the percentage of A-class goods of product.If install and adopt with the mode of gas tank interference fit, then gas tank can only select for use the higher but toughness of price to make preferably, and can not adopt present disposable lighter to use the lower but more crisp making of price in a large number, make the cost of material of gas tank be difficult to reduce always.Also have some producers to attempt adopting plastic injection-moulded mode to make the inflation spool to reduce the cost of material of gas charging valve, but owing to have the cross-drilled hole that is communicated with blind hole on the gas charging valve stem stem face of plastic production, can only adopt the mode of matched moulds when plastic injection-moulded, therefore must there be assembly line, causes poorly sealed and leak gas.

Summary of the invention

The purpose of this utility model is that the deficiencies in the prior art provide a kind of easy to make, good seal performance, the cost of material is low in order to overcome, is applicable to the lighter gas charging valve that uses in the gas tank of making of common material.

For achieving the above object, the technical solution that the utility model provides is as follows: a kind of lighter gas charging valve, comprise holddown spring, seal ring and inflation spool and valve seat, it is characterized in that: described inflation spool is the cylindrical member that cylinder is provided with the ring-type convex shoulder, described valve seat is a cylindrical member, described valve base center hole middle part is provided with the ring-type convex tendon valve base cavity is divided into two-part up and down, top is the sliding chamber of spool, the bottom is an inflatable chamber, the cylinder upper edge of described inflation spool ring-type convex shoulder air inlet one side is axially arranged with one or more than one grooves and constitutes filling channel, described seal ring comprises exterior seal ring and inner seal ring, after described inflation spool convex shoulder air inlet one side is inserted into the bottom inflatable chamber from the sliding chamber of spool, the sheathed inner seal ring of going up on the cylinder, described holddown spring is a helical spring, be set on the other end of inflating spool and be in spool and slide in the chamber, valve seat is arranged with the valve pocket of straight tubbiness outward, valve seat and valve pocket fuse, the valve pocket top is provided with the inflation of the sliding chamber of spool UNICOM portals, exterior seal ring is arranged on the gas charging valve cylinder, and described valve pocket cylinder is provided with the snap-in structure that cooperates with gas tank.

The utility model beneficial effect compared with prior art is: because the snap-in structure that lighter gas charging valve of the present utility model cooperates at gas tank, during application, only need be provided with a cavity volume that matches with valve pocket in the bottom of lighter gas tank, valve pocket and cavity volume can be connected together by being arranged on the inboard peristoma of snap-in structure on the valve pocket outer wall such as barb and cavity volume, and seal by the exterior seal ring that is arranged on the gas charging valve cylinder, therefore do not need to carry out ultrasonic welding, do not need to adopt to install yet and reach sealing purpose with the mode of gas tank interference fit, so be applicable in gas tank and use, the cost of material of complete machine is greatly reduced with common material such as AS plastic production.

The utility model is described in further detail below in conjunction with accompanying drawing, and provide embodiment.

Description of drawings

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

Accompanying drawing 2 is the utility model specific embodiment stereoscopic schematic representation;

Accompanying drawing 3 is another angle schematic perspective view of the utility model specific embodiment outward appearance;

Accompanying drawing 4 is the utility model specific embodiment internal structure sectional view;

Accompanying drawing 5 is the utility model specific embodiment STRUCTURE DECOMPOSITION schematic representation;

Accompanying drawing 6 is a valve pocket structure sectional view;

Accompanying drawing 7 is the utility model specific embodiment valve seat schematic perspective view;

Embodiment

Specific embodiment: as Fig. 4, shown in 5, gas charging valve comprises holddown spring 4, exterior seal ring 5, inner seal ring 6 and inflation spool 2, valve seat 1 and valve pocket 3, valve seat 1 and valve pocket 3 adopt acetal plastic to make, inflation spool 2 is provided with the cylindrical member of ring-type convex shoulder 21 for cylinder, described valve seat 1 is a cylindrical member, described valve seat 1 center hole middle part is provided with ring-type convex tendon 11 valve seat 1 inner chamber is divided into two-part up and down, top is the sliding chamber of spool, the bottom is an inflatable chamber, the cylinder upper edge of convex shoulder 21 air inlets one side on the described inflation spool 2 is axially arranged with one or more than one grooves 22 and constitutes filling channel, groove 22 needn't be too many, general 2～5 get final product, groove 22 evenly distributes along circumference, be provided with 3 grooves 22 in this concrete enforcement, after the sheathed upward inner seal ring of convex shoulder 21 air inlets one side on the described inflation spool 26 backs are inserted into the bottom inflatable chamber from the sliding chamber of spool, sheathed again another inner seal ring 6 of going up on the cylinder, described holddown spring 4 is a helical spring, be set on the other end of inflating spool 2 and be in spool and slide in the chamber, preferably direct card constitutes the mangetic core assembly that fuses thereon to the internal diameter of holddown spring 4 with the other end interference fit of inflation spool 2, to make things convenient for the next procedure assembling.The valve pocket 3 of straight tubbiness is set in outside the valve seat 1, the snap-in structure of gas charging valve is arranged on the barb 31 that the wedge-shaped projection on valve pocket 3 outer walls forms by several and constitutes, as shown in Figure 7, preferably be provided with shoulder rank 12 that match with valve pocket 3 wall thickness on valve seat 1 outer wall and make that gas charging valve integral body is that cylindric being convenient to cooperates with gas tank, valve seat 1 outer wall shoulder rank 12 are divided into two sections with top, hypomere diameter and valve pocket 3 internal diameter interference fit, epimere diameter and valve pocket 3 internal diameter Spielpassung, last section surface is provided with annular projection 13, form draw-in groove 14 between annular projection 13 and the hypomere, as shown in Figure 6, the corresponding draw-in groove of valve pocket 3 inwalls 14 places are along being circumferentially with plurality of sections raised line 32, the number of raised line 32 and preferably corresponding with barb 31 in position radially, above valve pocket 3 inwall raised lines 32, extend to the top vertically and be provided with groove 33, make this groove 33 be in the inboard of barb 31, thereby constitute cavity simultaneously and inflation is portalled, cavity can increase elasticity, is convenient to install.Valve seat 1 inserts in the valve seat 1, raised line 32 is stuck in the draw-in groove 14 valve seat 1 hypomere and valve pocket 3 is closely fused, prevent to break away from valve pocket 3 at the effect lower valve base 1 of holddown spring 4, raised line 32 is arranged on valve seat 1 outer wall certainly, draw-in groove 14 is arranged on valve pocket 3 inwalls also can reach same purpose.Exterior seal ring 5 is arranged on the gas charging valve cylinder, both can be arranged on valve pocket 3 cylinders, also can be arranged on the shoulder rank 12 of valve seat 1.Certainly, valve seat 1 outer wall shoulder rank 12 above section diameters are identical, with valve pocket 3 internal diameter interference fit, without separating into two sections, also are to reach the purpose that closely cooperates and fuse with valve pocket 3, and just higher to the dimension precision requirement of part referring to Fig. 5, assembling is effort.Shown in Fig. 1,4, in preventing that gas charging valve is by the jacking gas tank when inflating, valve seat 1 lower edge preferably is provided with radial flange and constitutes limit structure, if be provided with the structure of thrust in the cavity volume of gas tank bottom, then valve seat 1 lower edge need not to be provided with radial flange.

During the gas charging valve practical application of present embodiment, be provided with a cavity volume that matches with valve pocket 3 in the bottom of lighter gas tank, valve pocket 3 can be connected together with the inboard peristoma of cavity volume by the barb 31 that is arranged on valve pocket 3 outer walls with cavity volume.

Claims

1, a kind of lighter gas charging valve, comprise holddown spring, seal ring and inflation spool and valve seat, it is characterized in that: described inflation spool is the cylindrical member that cylinder is provided with the ring-type convex shoulder, described valve seat is a cylindrical member, described valve base center hole middle part is provided with the ring-type convex tendon valve base cavity is divided into two-part up and down, top is the sliding chamber of spool, the bottom is an inflatable chamber, the cylinder upper edge of described inflation spool ring-type convex shoulder air inlet one side is axially arranged with one or more than one grooves and constitutes filling channel, described seal ring comprises exterior seal ring and inner seal ring, after described inflation spool convex shoulder air inlet one side is inserted into the bottom inflatable chamber from the sliding chamber of spool, the sheathed inner seal ring of going up on the cylinder, described holddown spring is a helical spring, be set on the other end of inflating spool and be in spool and slide in the chamber, valve seat is arranged with the valve pocket of straight tubbiness outward, valve seat and valve pocket fuse, the valve pocket top is provided with the inflation of the sliding chamber of spool UNICOM portals, exterior seal ring is arranged on the gas charging valve cylinder, and described valve pocket cylinder is provided with the snap-in structure that cooperates with gas tank.

2, lighter gas charging valve according to claim 1 is characterized in that: described snap-in structure is arranged on the barb that the wedge-shaped projection on the valve pocket outer wall forms by several and constitutes, and the inboard with the barb corresponding position on the described valve pocket is provided with cavity.

3, lighter gas charging valve according to claim 1, it is characterized in that: described valve seat outer wall hypomere diameter and valve pocket internal diameter interference fit, epimere diameter and valve pocket internal diameter Spielpassung, last section surface is provided with annular projection, form draw-in groove between annular projection and the hypomere, the corresponding draw-in groove of valve sleeving inner wall place is along being circumferentially with the plurality of sections raised line, and valve seat inserts in the valve seat, and raised line is stuck in the draw-in groove valve seat and valve pocket are closely fused.

4, lighter gas charging valve according to claim 2, it is characterized in that: described valve seat outer wall hypomere diameter and valve pocket internal diameter interference fit, epimere diameter and valve pocket internal diameter Spielpassung, last section surface is provided with the ring-type convex tendon, form draw-in groove between ring-type convex tendon and the hypomere, the corresponding draw-in groove of valve sleeving inner wall place is along being circumferentially with the plurality of sections raised line, valve seat inserts in the valve seat, raised line is stuck in the draw-in groove valve seat and valve pocket is closely fused, described cavity is by being arranged on valve sleeving inner wall raised line top, and the groove that extends to the top vertically constitutes, and described groove constitutes inflation simultaneously and portals.

5, according to each described lighter gas charging valve of claim 1 to 4, it is characterized in that: described inflation spool is provided with 2～5 grooves, evenly distributes along circumference.