CN216924420U - Valve seat assembly and lighter comprising same - Google Patents

Abstract

The utility model relates to a valve seat assembly for a lighter, the valve seat assembly comprising: a filling valve for filling the lighter with fuel; a discharge valve for supplying fuel to the lighter for ignition; a valve seat comprising a first housing area for housing a discharge valve (51) and a second housing area for housing an injection valve (52), the first housing area being separated from the second housing area by a third housing area. The utility model also relates to a lighter comprising the valve seat assembly. The valve seat assembly enables the injection valve and the discharge valve to be arranged on the same valve seat, and the injection valve can be hidden after the finished lighter product is assembled. It is suitable for any lighter that needs to be filled with fuel.

Description

Valve seat assembly and lighter comprising same

Technical Field

The present invention relates to a valve seat assembly for a lighter and a lighter including the same.

Background

The lighter is a common small-sized ignition device, and can be used for smoking ignition, cooking ignition and the like. Lighters, whether disposable or reusable, generally include a fire mechanism and a fuel reservoir. The fire outlet mechanism has a complex structure and is very critical. The fuel storage mechanism is used for storing fuel for combustion, and the structure is relatively simple. The fuels commonly used in prior lighters were liquid or gaseous, and most of the current lighters are liquid gaseous fuels. Lighters, whether disposable or reusable, require fuel to be injected into a fuel reservoir. The differences in the injection patterns result in lighters that vary widely in cost, performance, etc.

At present, five main modes of fuel injection of the lighter are available in the lighter industry.

As shown in fig. 9(a) to 9(c), the first way of injecting fuel into the lighter is to drip the liquid fuel refrigerated at-40 to-60 ℃ into the lighter case in a state that the lighter case is not sealed, and then immediately connect the inner head and the lighter case by ultrasonic welding to make the lighter case a sealed fuel tank. For the fuel injection mode, the equipment cost investment is large, the power consumption is high, the safety risk in the production process is high, and the mode is rarely used in the industry.

As shown in fig. 10, the second way of injecting fuel into the lighter is to inject fuel in a state where the case is sealed, the injection valve is provided at the bottom of the lighter, and when injecting fuel, the injection device needs to jack up the valve nozzle of the injection valve to inject liquid fuel into the case.

As shown in fig. 11, a third way to fuel the lighter is to pry up the outlet nozzle of the lighter discharge valve with the mechanism of the fuel injection device and then reversely fill the liquid fuel into the case from the outlet nozzle in the case where the case is closed and the lighter has no injection valve.

As shown in fig. 12(a) to 12(b), a fourth way of injecting fuel into the lighter is to inject fuel into the lighter in a semi-closed state of the casing, and the fuel injection way is generally used for a constant flow valve lighter in which the material of the casing (or the fuel tank) is Nylon material (Nylon PA66 or PA6) or polyoxymethylene material (POM). When the constant flow valve is not completely pressed in place in the stepped mounting hole of the shell, a gap is reserved between the outer wall of the valve and the inner wall of the stepped mounting hole of the shell, and a fuel injection groove is formed in the gap.

As shown in fig. 13(a) to 13(b), the fifth way of injecting fuel into the lighter is to inject fuel into the lighter in a semi-closed state of the casing, where a step-type fuel injection hole is designed at a position at the bottom of the casing, before fuel is injected, a rubber plug or a steel ball matched with the step-type fuel injection hole is first placed at the upper half part of the step-type fuel injection hole, liquid fuel is injected into the fuel tank or the lighter casing through a specially designed fuel injection device mechanism from a gap between the rubber plug or the steel ball and the upper half part of the step-type inflation hole, and then the fuel injection device mechanism can immediately press the rubber plug or the steel ball into the designed position at the lower half part of the step-type hole, thereby completing fuel injection into the lighter. The process of the fifth fuel injection method is relatively complicated, and the product safety is also controversial in the industry.

The second and third fuel injection modes are the most common fuel injection modes in the existing lighter industry, but for example, the screw-in type constant flow valve disposable lighter with the case made of AS material has no fuel injection valve, obviously, the second fuel injection mode does not exist, and the third fuel injection mode also does not work because the gas outlet nozzle of the constant flow valve can not inject fuel reversely. The fourth fuel injection mode limits the material of the shell and is not suitable for AS material lighters in the market. In short, the above five fuel injection methods and their structures have limitations, which are limited by the material and process of the casing, the conditions of the common discharge valve, the screw-in constant flow (discharge) valve, the press-in constant flow (discharge) valve, the disposable lighter, and the reusable lighter. There is therefore a need for a better fuel injection structure for lighters.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a valve seat assembly for a lighter, which provides a filling valve and a discharge valve on the same valve seat, and which allows the filling valve to be hidden after the lighter is completely assembled.

Due to the adoption of the hidden injection valve, the injection valve cannot be seen from the appearance after the finished product of the lighter is assembled, the appearance is neat and attractive, and when fuel injection is needed, the operation of injecting fuel into the lighter can be implemented by taking down the integrated outer machine head which can be simply installed. Because the discharge valve and the injection valve are arranged on the same valve seat to form an independent valve seat assembly, the lighter is not limited by the conditions of casing materials, processes, common discharge valves, screw-in constant flow (discharge) valves, press-in constant flow (discharge) valves, disposable lighters, reusable lighters and the like.

According to the present invention there is provided a valve seat assembly for a lighter, the valve seat assembly comprising: a filling valve for filling the lighter with fuel; a discharge valve for supplying fuel to the lighter for ignition; a valve seat comprising a first receiving area for receiving a discharge valve and a second receiving area for receiving an injection valve, the first receiving area being separated from the second receiving area by a third receiving area. The valve seat assembly arranges the injection valve and the discharge valve on the same valve seat, and is suitable for any lighter needing to be injected with fuel.

According to one embodiment, the valve seat assembly is formed as an inner head of a lighter. This arrangement of forming the valve seat assembly as an inner head of the lighter can utilize space in the inner head, thereby providing more space for the fuel tank of the lighter.

According to one embodiment, the valve seat assembly is formed as part of the housing of the lighter. The valve seat assembly is integrated with the housing and can be manufactured at the same time as the housing is manufactured.

According to one embodiment, the outlet valve is mounted in the first receiving region by means of a screw connection and the inlet valve is welded in the second receiving region by means of ultrasound. This allows a simple connection of the outlet valve and the inlet valve to the valve seat assembly.

According to one embodiment, the filling valve comprises a first sealing ring, a filling nozzle, a sealing spring, a filling valve body and a second sealing ring, the first sealing ring, the sealing spring and the second sealing ring are sleeved on the periphery of the filling nozzle and pressed into the filling valve body together, the first sealing ring is close to the nozzle of the filling nozzle, and the sealing spring is arranged between the first sealing ring and the second sealing ring. The injection valve can ensure reliable fuel injection for the lighter and can tightly seal the shell after fuel injection.

According to one embodiment, a further first sealing ring is arranged between the sealing spring and the second sealing ring.

According to one embodiment, the first sealing ring is a flat gasket sealing ring.

According to one embodiment, said second sealing ring is a bowl-shaped sealing ring.

According to one embodiment, the filling valve body consists of plastic.

The utility model also provides a lighter which comprises the valve seat assembly.

According to one embodiment, the lighter further comprises: a housing having a closed end and an open end; an outer head assembly assembled with the valve seat assembly through the third accommodation area of the valve seat and mounted at the open end of the cabinet; and a windshield mounted at the open end of the housing and covering an exterior of a majority of the components of the outer head assembly.

According to one embodiment, the outer head assembly is assembled with the valve seat assembly by press fitting.

According to one embodiment, in the state in which the lighter is installed, the injection valve is not accessible from the outside.

The valve seat assembly according to the present invention can integrate the discharge valve and the injection valve of the lighter as a single component. The valve seat assembly is not limited by the conditions of casing materials, processes, common discharge valves, screw-in constant flow (gas outlet) valves, press-in constant flow (gas outlet) valves, disposable lighters, reusable lighters and the like.

According to one embodiment, in the state in which the lighter is installed, the injection valve is not accessible from the outside. Thereby protecting the injection valve. When it is desired to fuel the lighter, the fuel injection can be accomplished, for example, by removing the outer head assembly.

In addition, the lighter of the utility model also has the advantages of the valve seat assembly.

Drawings

For a better understanding of the above and other objects, features, advantages and functions of the present invention, reference should be made to the preferred embodiments illustrated in the accompanying drawings. Like reference numerals in the drawings refer to like parts. It will be appreciated by persons skilled in the art that the drawings are intended to illustrate preferred embodiments of the utility model without any limiting effect on the scope of the utility model, and that the various components in the drawings are not drawn to scale.

Fig. 1 shows a finished assembled lighter;

fig. 2 shows an exploded view of a lighter according to the present invention;

fig. 3 shows an exploded view of the outer head assembly of the lighter according to the present invention;

FIG. 4 illustrates an exploded view of one embodiment of a valve seat assembly according to the present invention;

FIG. 5 shows an exploded view of the discharge valve of FIG. 4;

FIG. 6 shows an exploded view of the fill valve of FIG. 4;

FIG. 7 is an assembly view showing the valve seat assembly of FIG. 4 assembled with a housing;

FIG. 8 illustrates a cross-sectional view of another alternative valve seat assembly according to the present invention;

9(a) -9 (c) show schematic diagrams of a first prior art way of injecting fuel into a lighter;

FIG. 10 is a schematic illustration of a second prior art manner of fueling a lighter;

FIG. 11 is a schematic illustration of a third prior art manner of fueling a lighter;

12(a) -12 (b) are schematic diagrams illustrating a fourth prior art manner of fueling a lighter;

fig. 13(a) -13 (b) are schematic diagrams illustrating a fifth prior art manner of injecting fuel into a lighter.

List of reference numerals

1 case

2 valve seat assembly

3 outer head combination

31 grinding wheel

32 seesaw

33 outer head

34 flint

35 flint spring

36 rubber plug

4 wind-proof cover

5 valve seat

51 discharge valve

511 discharge valve body

512 filter cotton combination

513 drainage core

514 core cover

52 filling valve

521 first sealing ring

522 injection nozzle

523 sealing spring

524 filling valve body

525 second seal ring

6 bottom plate

Detailed Description

The technical solutions of the present invention are further described below by way of specific embodiments with reference to the drawings, but the present invention is not limited to these embodiments. What has been described herein is merely a preferred embodiment in accordance with the present invention and other ways of practicing the utility model will occur to those skilled in the art and are within the scope of the utility model.

With respect to the drawings, directional terminology, such as "upper," "lower," "left," "right," "front," "rear," etc., is used with reference to the orientation of the drawings as described. Because components of embodiments of the present invention can be implemented in a number of orientations, the directional terminology is used for purposes of illustration and is in no way limiting.

Fig. 1 shows the finished lighter product when assembled. Referring to fig. 1 and 2, the lighter of the present invention includes a housing 1, a valve seat assembly 2, an outer head assembly 3, and a windshield 4. The cabinet 1 has a closed end and an open end. The valve seat assembly 2, which may also be referred to as an inner head assembly, and the outer head assembly 3 may be assembled together, mounted at the open end of the housing 1, and the windshield 4 mounted at the open end of the housing 1 and covering the exterior of most of the components of the outer head assembly 3.

More specifically, a fuel tank is provided in the casing 1 or the casing 1 forms a fuel tank for containing fuel. The contour of the outer peripheral surface of the valve seat assembly 2 substantially conforms to the contour of the inner peripheral surface of the casing 1 near the open end and can be welded to the inner peripheral surface of the casing 1 near the open end by, for example, ultrasonic equipment. As shown in fig. 3, the outer nose assembly 3 includes a grinding wheel 31, a rocker 32, an outer nose 33, a flint 34, a flint spring 35, and a rubber plug 36. After the outer head assembly 3 is assembled, it can be connected to the inner head assembly 2 from above (i.e., the side of the open end) by press-fitting or other connection means. And a windshield 4 is typically provided on the housing 1 at the open end of the lighter and is connected to the outer head assembly 3 for covering at least most of the components of the outer head assembly 3.

Fig. 4 shows an exploded view of an embodiment of the valve seat assembly 2 according to the utility model.

The valve seat assembly 2 includes: a filling valve 52 for filling the lighter with fuel; a discharge valve 51 for supplying fuel to the lighter for ignition; a valve seat 5, the valve seat 5 comprising a first housing area for housing the outlet valve 51 and a second housing area for housing the inlet valve 52 and preferably a third housing area between the first and second housing areas for partially housing the outer head set 3. Preferably, the first receiving area and the second receiving area are spaced apart. Preferably, after the lighter is assembled, the first receiving area and the second receiving area are respectively disposed at both sides of a partition of the case 1, the partition being provided in the case 1 and serving to divide an inner cavity of the case into two or more spaces.

Referring to fig. 5, the discharge valve 51 of the present invention includes a discharge valve body 511, a filter-wool pack 512, a drainage wick 513 and a wick cover 514. In the assembled state of the drain valve, the wick 513 passes through the central through hole of the wick housing 514, and the lower end of the wick protrudes from the interior of the wick housing 514 and partially extends into the fuel tank of the lighter. The core sleeve 514 is tightly attached to the lower end of the filter cotton assembly 512 and falls into a corresponding matching hole of the discharge valve of the first accommodation area of the valve seat, and then is screwed into the discharge valve body 511, so that the discharge valve body 511 is tightly attached to the upper end of the filter cotton assembly 512.

As shown in fig. 6, the filling valve 52 of the present invention includes a first sealing ring 521, a filling nozzle 522, a sealing spring 523, a filling valve body 524, and a second sealing ring 525. The first sealing ring 521 is preferably a flat gasket sealing ring, the second sealing ring 525 is preferably a bowl-shaped sealing ring, and the filling valve body 524 is preferably made of plastic. In the assembled state of the filling valve, the first packing 521, the sealing spring 523, and the second packing 525 are fitted around the outer circumference of the filling nozzle and pressed into the filling valve body 524, the first packing is close to the mouth of the filling nozzle 522, and the sealing spring 523 is disposed between the first packing 521 and the second packing 525. Alternatively, a further first sealing ring 521 may also be arranged between the sealing spring 523 and the second sealing ring 525.

After the discharge valve 51 and the injection valve 52 are respectively assembled, the discharge valve 51 is installed in the first accommodation region of the valve seat 5 and the injection valve 52 is installed in the second accommodation region of the valve seat 5. Wherein the discharge valve 51 is installed in the first receiving region of the valve seat 5 by screw connection, and the injection valve 52 is installed in the second receiving region of the valve seat 5 by ultrasonic welding. Other methods of attachment or securing are of course also conceivable.

Referring now to fig. 7, the relative positions of the first and second receiving areas in the valve seat 5 are such that the lighter can be filled with fuel, e.g., liquid fuel, through the fill valve 52 and can be supplied with fuel through the drain valve 51 after installation of the lighter is complete. Preferably, when the outer head assembly 3 is mounted to the inner head assembly 2, the injection valve 52 is covered by the rocker 32 so that the injection valve 52 is not visible from above. That is, the fill valve 52 in the valve seat assembly 5 is not accessible from the outside after the lighter assembly is complete.

FIG. 8 illustrates a cross-sectional view of another alternative valve seat assembly according to the present invention. Unlike the embodiment of fig. 7, in the embodiment shown in fig. 8, the valve seat assembly 2 is disposed in the housing 1 of the lighter, or forms a portion of the housing 1. Preferably, the valve seat assembly 2 is formed in the upper half of the casing 1, i.e., a portion near the open end. In this case, a first receiving area for receiving the outlet valve 51 and a second receiving area for receiving the inlet valve 52 are formed in the housing 1. The first and second accommodation areas are integrally formed with the housing. Preferably, the first and second receiving areas are located at both sides of the partition of the cabinet 1, respectively.

In fig. 8, the outlet valve 51 and the inlet valve 52 are identical to the embodiment in fig. 3, and likewise the outlet valve 51 is mounted in a first receiving region of the valve seat 5 and the inlet valve 52 is mounted in a second receiving region of the valve seat 5. Wherein the discharge valve 51 is installed in the first receiving region of the valve seat 5 by screw connection, and the injection valve 52 is installed in the second receiving region of the valve seat 5 by ultrasonic welding.

In the embodiment shown in fig. 8, when parts of the lighter are connected, it is preferable that after the discharge valve 51 and the filling valve 52 are mounted, the base plate 6 of the lighter and the cabinet 1 are welded together by ultrasonic waves to form a sealed fuel tank.

The working principle of the injection valve 52 of the present invention is described below: after the lighter is assembled, the lighter housing forms a sealed fuel tank, as shown in fig. 1. When the lighter is filled with fuel, the bottom end of the fuel injection head of the fuel injection device is pressed against the first sealing ring 521 of the injection valve 52 in a plane, the central hole of the fuel injection head is aligned with the central hole of the injection nozzle 522, the proper force is applied to the first sealing ring 521 along the axial direction of the central hole of the injection nozzle 522, the sealing spring 523 is compressed, the injection nozzle 522 is displaced along the direction of the force, thereby causing the second seal 235 to disengage from the sealing surface of the fill valve body 524, whereupon the displaced side opening of the fill nozzle 522 passes over the sealing surface of the second seal 235, in communication with the interior space of the fuel tank, the valve of the fuel filler head of the fuel filler device is opened, fuel, for example liquid gas, enters the central hole of the filler neck 522 from the central hole of the fuel filler head, since the central hole of the injection nozzle 522 is communicated with the side hole, a certain amount of fuel liquid can enter the closed container through the side hole. After the fuel injection is completed, the force is removed, so that the sealing spring 523 is reset to drive all the other parts of the injection valve 52 to reset, and the fuel tank is in a closed state.

The valve seat assembly 2 according to the present invention can integrate the exhaust valve 51 and the injection valve 52 of the lighter as a single component. In the state where the lighter is assembled, the injection valve 52 is not accessible from the outside, thereby protecting the injection valve. When it is desired to fill the lighter with fuel, the fuel filling may be accomplished, for example, by removing the outer head assembly. The valve seat assembly is not limited by the conditions of casing materials, processes, common discharge valves, screw-in constant flow (gas outlet) valves, press-in constant flow (gas outlet) valves, disposable lighters, reusable lighters and the like.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Those skilled in the art to which the utility model relates may make various modifications, additions or substitutions to the specific embodiments described, without departing from the spirit of the utility model or exceeding the scope as defined in the accompanying claims.

Claims (13)

1. A valve seat assembly for a lighter, the valve seat assembly comprising:

a filling valve for filling the lighter with fuel;

a discharge valve for supplying fuel to the lighter for ignition;

a valve seat comprising a first housing area for housing a discharge valve (51) and a second housing area for housing an injection valve (52), the first housing area being separated from the second housing area by a third housing area.

2. The valve seat assembly of claim 1, wherein the valve seat assembly is formed as an inner head of a lighter.

3. The valve seat assembly of claim 1, wherein the valve seat assembly is formed as part of a housing of a lighter.

4. Valve seat assembly according to any one of claims 1 to 3, wherein the discharge valve (51) is mounted in the first housing zone by means of a threaded connection and the injection valve (52) is welded in the second housing zone by means of ultrasound.

5. Valve seat assembly according to any one of claims 1 to 3, characterized in that the filling valve (52) comprises a first sealing ring (521), a filling mouth (522), a sealing spring (523), a filling valve body (524) and a second sealing ring (525), the first sealing ring (521), the sealing spring (523) and the second sealing ring (525) being sleeved on the periphery of the filling mouth (522) and pressed together into the filling valve body (524), the first sealing ring being close to the mouth of the filling mouth, the sealing spring being arranged between the first sealing ring and the second sealing ring.

6. A valve seat assembly according to claim 5, wherein a further first sealing ring is arranged between the sealing spring and the second sealing ring.

7. The valve seat assembly of claim 5, wherein the first seal ring is a flat gasket seal ring.

8. The valve seat assembly of claim 5, wherein the second seal ring is a bowl seal ring.

9. A valve seat assembly according to claim 5, wherein the fill valve body is constructed of plastic.

10. A lighter, characterized in that the lighter comprises a valve seat assembly according to any one of claims 1 to 9.

11. The lighter according to claim 10, further comprising:

a housing (1) having a closed end and an open end;

an outer head assembly (3) assembled with the valve seat assembly through a third accommodation area of the valve seat and mounted at the open end of the casing; and

a windshield (4) mounted to the open end of the housing and covering the exterior of most of the components of the outer head assembly.

12. The lighter according to claim 11, wherein the outer nose assembly is assembled with the valve seat assembly by press fitting.

13. The lighter according to claim 12, wherein in a state in which the lighter is completely installed, the filling valve (52) is not accessible from the outside.

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