CN219328082U - Ground hand-held torch gas-liquid conversion fuel supply device and hand-held torch - Google Patents

Abstract

The utility model provides a ground handheld torch gas-liquid conversion fuel supply device and a handheld torch, which comprise a fuel storage bottle body, a valve body, a limit sleeve, a valve core assembly and an elastic piece, wherein the valve body is connected with the fuel storage bottle body, the valve body is provided with a first accommodating cavity and a second accommodating cavity, the limit sleeve is provided with a third accommodating cavity, the valve core assembly is movably arranged in the valve body, the valve core assembly comprises a first valve core section, a second valve core section and a third valve core section which are sequentially connected, the first valve core section is provided with a fourth accommodating cavity and a flow hole group, the flow hole group is communicated with the fourth accommodating cavity, the fourth accommodating cavity is communicated with a torch combustion area, the first valve core section is arranged in the first accommodating cavity, the second valve core section and the third valve core section are both arranged in the second accommodating cavity, and the diameter of the second valve core section is larger than that of the first accommodating cavity. By applying the technical scheme of the utility model, the technical problem that the torch cannot burn stably caused by unstable gas supply of the torch in the prior art is solved.

Description

Ground hand-held torch gas-liquid conversion fuel supply device and hand-held torch

Technical Field

The utility model relates to the technical field of torches, in particular to a ground handheld torch gas-liquid conversion fuel supply device and a handheld torch.

Background

The ground handheld torch is widely applied to various events or celebration activities, the fuel supply of the torch is particularly critical, liquid fuel is generally adopted for filling, the fuel is gasified after passing through a special valve, gaseous fuel flows along a pipeline to reach a torch combustion cavity, and a whole set of fuel supply is formed for the torch to burn after ignition. At present, a domestic torch generally adopts gaseous fuel (such as propane, etc.), propane liquid is gasified in a gas cylinder, gas phase propane steam is provided for a torch burner, the pressure in the gas cylinder can be greatly changed in the gas supply process, and the gas supply is unstable, so that the torch cannot burn stably.

Disclosure of Invention

The utility model provides a ground handheld torch gas-liquid conversion fuel supply device and a handheld torch, which can solve the technical problem that in the prior art, the torch cannot burn stably due to unstable torch gas supply.

According to an aspect of the present utility model, there is provided a ground hand-held flare gas-liquid conversion fuel supply apparatus comprising: the fuel storage bottle body is internally provided with liquid fuel; the valve body is connected with the fuel storage bottle body and is provided with a first accommodating cavity and a second accommodating cavity which are arranged in a step shape, the diameter of the first accommodating cavity is smaller than that of the second accommodating cavity, and the first accommodating cavity is communicated with the second accommodating cavity; the limiting sleeve is arranged in the second accommodating cavity and fixedly connected with the valve body, and the limiting sleeve is provided with a third accommodating cavity; the valve core assembly is movably arranged in the valve body and comprises a first valve core section, a second valve core section and a third valve core section which are sequentially connected, the first valve core section is provided with a fourth containing cavity and a flow hole group, the fourth containing cavity is arranged along the axial direction of the first valve core section, the flow hole group is arranged along the radial direction of the first valve core section, the flow hole group is communicated with the fourth containing cavity, the fourth containing cavity is communicated with the torch combustion area, the diameters of the first valve core section and the third valve core section are smaller than the diameter of the second valve core section, the first valve core section is arranged in the first containing cavity, the second valve core section and the third valve core section are arranged in the second containing cavity, and the diameter of the second valve core section is larger than that of the first containing cavity; the elastic piece is arranged in the third accommodating cavity and sleeved outside the third valve core section; when the fuel gas is not required to be supplied, the elastic piece is in an extension state, the flow hole group is attached to the cavity wall of the first accommodating cavity, and the flow hole group is not communicated with the third accommodating cavity; when gas is required to be supplied, the valve core assembly is forced to move to a set position along the axial direction of the valve body, the valve core assembly applies force to the elastic piece to enable the elastic piece to be in a compressed state, and the flow hole group is communicated with the third accommodating cavity.

Further, the first spool segment has a plurality of flow hole groups disposed at intervals along an axial direction of the first spool segment.

Further, any one of the flow hole groups comprises a plurality of flow holes, the plurality of flow holes are positioned on the same cross section of the first valve core section, and the plurality of flow holes are uniformly arranged at intervals around the periphery of the first valve core section.

Further, the ground handheld torch gas-liquid conversion fuel supply device further comprises a first sealing unit, the first sealing unit is arranged in the third accommodating cavity, and the first sealing unit is sleeved on the outer side of the first valve core section and is located between the valve body and the limiting sleeve.

Further, the ground hand-held flare gas-liquid conversion fuel supply device further comprises a second sealing unit, and the second sealing unit is arranged between the valve body and the fuel storage bottle body.

Further, the first sealing unit is a fluorosilicone rubber sealing gasket, and the second sealing unit is a fluorosilicone rubber sealing ring.

Further, the ground hand-held torch gas-liquid conversion fuel supply device further comprises a force application unit, and the force application unit is used for driving the valve core assembly to move along the axis direction of the valve body.

Further, the elastic member includes a spring.

Further, the ground hand-held flare gas-liquid conversion fuel supply device also comprises a fuel supply unit, wherein the fuel supply unit is connected with the fuel storage bottle body and is used for supplying fuel to the fuel storage bottle body.

According to yet another aspect of the present utility model, there is provided a hand-held torch comprising a torch firing unit and a ground hand-held flare gas-liquid conversion fuel supply device, the ground hand-held flare gas-liquid conversion fuel supply device being a ground hand-held flare gas-liquid conversion fuel supply device as described above, the ground hand-held flare gas-liquid conversion fuel supply device being for providing gaseous fuel to the torch firing unit.

By applying the technical scheme of the utility model, the gas-liquid conversion fuel supply device for the ground hand-held torch is provided, and the gas-liquid conversion fuel supply device is provided with the valve body, the limiting sleeve, the valve core assembly and the elastic piece, when fuel gas is not required to be supplied, the valve core assembly is not influenced by external force, the elastic piece is in an extension state, the flow hole group is attached to the cavity wall of the first accommodating cavity, at the moment, the flow hole group is not communicated with the third accommodating cavity, and no gaseous fuel is supplied; when gas needs to be supplied, the valve core assembly is forced to move to a set position along the axial direction of the valve body, the valve core assembly applies force to the elastic piece to enable the elastic piece to be in a compressed state, the flow hole group is communicated with the third containing cavity, the third containing cavity is communicated with the fuel storage bottle, at the moment, the pressure in the fuel storage bottle changes, liquid fuel is converted into gaseous fuel and enters a torch burning area sequentially through the third containing cavity, the flow hole group and the fourth containing cavity, gas is provided for torch burning, the mode can ensure that the gas-liquid conversion of the torch is sufficient, the fuel supply is uninterrupted, and the stable burning of the torch is ensured. Compared with the prior art, the utility model can effectively solve the technical problem that the torch cannot burn stably caused by unstable gas supply of the torch in the prior art, ensures that the gas and the liquid of the torch are converted fully, ensures that the torch burns stably, has ingenious design, is convenient to open and high sealing safety, can be transported by various ways of water, land and air when the bottle body is filled with fuel, and provides reliable fuel supply for the handheld torch.

Drawings

The accompanying drawings, which are included to provide a further understanding of embodiments of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model. It is evident that the drawings in the following description are only some embodiments of the present utility model and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.

FIG. 1 illustrates a schematic diagram of an exploded structure of a ground hand-held flare gas-liquid conversion fuel supply apparatus provided in accordance with an embodiment of the present utility model;

FIG. 2 illustrates a schematic diagram of an assembled configuration of a ground hand-held flare gas-liquid conversion fuel supply apparatus provided in accordance with an embodiment of the present utility model;

FIG. 3 illustrates a cross-sectional view of a ground hand-held flare gas-to-liquid conversion fuel supply apparatus provided in accordance with an embodiment of the present utility model;

FIG. 4 shows a schematic structural view of a valve cartridge provided in accordance with an embodiment of the present utility model;

FIG. 5 illustrates a schematic diagram of the installation of a ground hand-held flare gas-liquid conversion fuel supply apparatus provided in accordance with an embodiment of the present utility model.

Wherein the above figures include the following reference numerals:

10. a fuel storage bottle; 20. a valve body; 20a, a first accommodation chamber; 20b, a second accommodation chamber; 30. a limit sleeve; 30a, a third accommodating cavity; 40. a valve core assembly; 41. a first spool segment; 41a, a fourth accommodation chamber; 41b, a flow hole group; 42. a second spool segment; 43. a third valve core segment; 50. an elastic member; 60. a first sealing unit; 70. and a second sealing unit.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

As shown in fig. 1 to 5, according to the embodiment of the present utility model, there is provided a ground hand-held flare gas-liquid conversion fuel supply device, the ground hand-held flare gas-liquid conversion fuel supply device includes a fuel storage bottle 10, a valve body 20, a spacing sleeve 30, a spool assembly 40 and an elastic member 50, liquid fuel is stored in the fuel storage bottle 10, the valve body 20 is connected with the fuel storage bottle 10, the valve body 20 has a first accommodation chamber 20a and a second accommodation chamber 20b, the first accommodation chamber 20a and the second accommodation chamber 20b are arranged in a stepped shape, the diameter of the first accommodation chamber 20a is smaller than the diameter of the second accommodation chamber 20b, the first accommodation chamber 20a is communicated with the second accommodation chamber 20b, the spacing sleeve 30 is arranged in the second accommodation chamber 20b and is fixedly connected with the valve body 20, the spool assembly 40 is movably arranged in the valve body 20, the spool assembly 40 includes a first spool section 41, a second spool section 42 and a third spool section 43 sequentially connected with the valve spool assembly, the first spool section 41 has a fourth spool section 41 and a fourth spool section 41b, the diameter of the third spool section 41 is arranged in the diameter of the third spool section 41b is arranged in the first spool section 41b, the diameter is arranged in the third spool section 41b is communicated with the third spool section 41b, the diameter is arranged in the third spool section 41b, and the third spool section 41b is arranged in the diameter is communicated with the third spool section 41b, and the third spool section 41b has a larger diameter, and the third spool section 41b is arranged in the third spool section 41 is arranged in the third section 41 is in the third section, and is connected with the first spool section, and has a flow section 41, and has a flow; when the gas is not required to be supplied, the elastic member 50 is in an extended state, the flow hole group 41b is attached to the cavity wall of the first accommodating cavity 20a, and the flow hole group 41b is not communicated with the third accommodating cavity 30 a; when gas needs to be supplied, the valve core assembly 40 is forced to move to a set position along the axial direction of the valve body 20, the valve core assembly 40 applies force to the elastic member 50 to enable the elastic member 50 to be in a compressed state, and the flow hole group 41b is communicated with the third accommodating cavity 30a.

By adopting the configuration mode, the gas-liquid conversion fuel supply device is provided, and the gas-liquid conversion fuel supply device is provided with the valve body, the limit sleeve, the valve core component and the elastic component, when gas does not need to be supplied, the valve core component is not affected by external force, the elastic component is in an extension state, the flow hole group is attached to the cavity wall of the first accommodating cavity, at the moment, the flow hole group is not communicated with the third accommodating cavity, and no gaseous fuel is supplied; when gas needs to be supplied, the valve core assembly is forced to move to a set position along the axial direction of the valve body, the valve core assembly applies force to the elastic piece to enable the elastic piece to be in a compressed state, the flow hole group is communicated with the third containing cavity, the third containing cavity is communicated with the fuel storage bottle, at the moment, the pressure in the fuel storage bottle changes, liquid fuel is converted into gaseous fuel and enters a torch burning area sequentially through the third containing cavity, the flow hole group and the fourth containing cavity, gas is provided for torch burning, the mode can ensure that the gas-liquid conversion of the torch is sufficient, the fuel supply is uninterrupted, and the stable burning of the torch is ensured. Compared with the prior art, the utility model can effectively solve the technical problem that the torch cannot burn stably caused by unstable gas supply of the torch in the prior art, ensures that the gas and the liquid of the torch are converted fully, ensures that the torch burns stably, has ingenious design, is convenient to open and high sealing safety, can be transported by various ways of water, land and air when the bottle body is filled with fuel, and provides reliable fuel supply for the handheld torch.

Further, in the present utility model, in order to be able to adjust the flare fuel supply condition according to the actual condition, the first spool section 41 may be configured to have a plurality of flow hole groups 41b, the plurality of flow hole groups 41b being arranged at intervals in the axial direction of the first spool section 41.

In the configuration mode, the plurality of flow hole groups are arranged at intervals along the axial direction of the first valve core section, when the fuel supply is required to be increased, the force applied to the valve core assembly is increased to increase the downward moving distance of the valve core assembly along the axial direction of the valve body, and the plurality of flow hole groups can be communicated with the third accommodating cavity at the moment, so that more gaseous fuel can flow to the torch burning area through the flow hole groups; when the fuel gas supply needs to be reduced, the force applied to the valve core assembly is reduced to reduce the downward moving distance of the valve core assembly along the axial direction of the valve body, and a small amount of flow hole groups can be communicated with the third accommodating cavity, so that the flow of the gaseous fuel to the torch burning area through the flow hole groups can be reduced. The mode can adjust the fuel supply condition in real time according to the actual use condition, is more flexible to use, and can enable the torch to burn more stably.

Further, in the present utility model, in order to ensure a stable supply of the gaseous fuel, any one of the flow hole groups 41b may be configured to include a plurality of flow holes located at the same cross section of the first spool section 41, the plurality of flow holes being uniformly spaced around the periphery of the first spool section 41.

In this configuration, by configuring any one of the flow orifice groups to include a plurality of flow orifices located in the same cross section of the first spool section, for any one of the flow orifice groups, gaseous fuel can be uniformly supplied to the flare combustion region along the cross section of the first spool section, which can ensure that the flare burns at a higher temperature. As a specific embodiment of the present utility model, the first spool section 41 has a plurality of flow hole groups 41b, the plurality of flow hole groups 41b being disposed at intervals in different cross sections of the first spool section along the axial direction of the first spool section 41, any one of the flow hole groups being configured to include a plurality of flow holes, the plurality of flow holes of the same flow hole group being disposed at even intervals around the periphery of the first spool section.

Further, in the present utility model, the fuel in the fuel bottle is ensured not to leak, the flare combustion efficiency is improved, and the ground-held flare gas-liquid converted fuel supply apparatus may be configured to further include a first sealing unit 60, the first sealing unit 60 being disposed in the third accommodating chamber 30a, the first sealing unit 60 being sleeved outside the first valve core section 41 and between the valve body 20 and the limiting sleeve 30.

In addition, in the present utility model, in order to secure a sealed connection between the valve body and the fuel storage bottle, preventing fuel leakage, the floor-held flare gas-liquid converted fuel supply apparatus may be configured to further include a second sealing unit 70, the second sealing unit 70 being disposed between the valve body 20 and the fuel storage bottle 10. As a specific embodiment of the present utility model, the first sealing unit 60 may be configured to include a fluorosilicone rubber gasket, and the second sealing unit 70 may be configured to include a fluorosilicone rubber gasket, due to the wide adaptable temperature range and long service life of the fluorosilicone rubber.

Further, in the present utility model, in order to drive the spool assembly 40 to move in the axial direction of the valve body 20, the ground-held flare gas-liquid converted fuel supply apparatus may be configured to further include a biasing unit for driving the spool assembly 40 to move in the axial direction of the valve body 20.

Furthermore, as an embodiment of the present utility model, in order to ensure that the valve core assembly automatically returns to the original position after the stress is released, the elastic member 50 may be configured to include a spring in consideration of the difficulty and cost of material acquisition.

Further, in the present utility model, in order to ensure that the flare continues to burn, the ground-held flare gas-liquid converting fuel supply apparatus may be configured to further include a fuel supply unit connected to the fuel storage bottle 10, the fuel supply unit being for supplying fuel to the fuel storage bottle 10.

According to another aspect of the present utility model there is provided a hand-held torch comprising a torch firing unit and a ground hand-held flare gas-liquid conversion fuel supply device, the ground hand-held flare gas-liquid conversion fuel supply device being a ground hand-held flare gas-liquid conversion fuel supply device as described above, the ground hand-held flare gas-liquid conversion fuel supply device being for providing gaseous fuel to the torch firing unit.

By applying the configuration mode, the handheld torch comprises a torch combustion unit and a ground handheld torch gas-liquid conversion fuel supply device, and because the gas-liquid conversion fuel supply device provided by the utility model is provided with the valve body, the limit sleeve, the valve core assembly and the elastic piece, when gas does not need to be supplied, the valve core assembly is not influenced by external force, the elastic piece is in an extension state, the flow hole group is attached to the cavity wall of the first accommodating cavity, and at the moment, the flow hole group is not communicated with the third accommodating cavity, and no gaseous fuel is supplied; when gas needs to be supplied, the valve core assembly is forced to move to a set position along the axial direction of the valve body, the valve core assembly applies force to the elastic piece to enable the elastic piece to be in a compressed state, the flow hole group is communicated with the third containing cavity, the third containing cavity is communicated with the fuel storage bottle, at the moment, the pressure in the fuel storage bottle changes, liquid fuel is converted into gaseous fuel and enters a torch burning area sequentially through the third containing cavity, the flow hole group and the fourth containing cavity, gas is provided for torch burning, the mode can ensure that the gas-liquid conversion of the torch is sufficient, the fuel supply is uninterrupted, and the stable burning of the torch is ensured. Therefore, the ground handheld torch gas-liquid conversion fuel supply device provided by the utility model is used in the handheld torch, and can ensure stable combustion of the handheld torch.

For a further understanding of the present utility model, a detailed description of a ground-based hand-held flare gas-liquid conversion fuel supply apparatus provided by the present utility model is provided below in connection with FIGS. 1-5.

As shown in fig. 1 to 5, according to an embodiment of the present utility model, there is provided a ground hand-held flare gas-liquid conversion fuel supply apparatus including a fuel storage bottle 10, a valve body 20, a limit sleeve 30, a valve core assembly 40, an elastic member 50, a first sealing unit 60, a second sealing unit 70, and a fuel supply unit for sufficiently converting flare gas liquid without interruption of fuel supply, ensuring combustion of a flare. The fuel storage bottle body 10 is internally provided with liquid fuel, the fuel storage bottle body 10 is a bottle body with a large length-diameter ratio of 9, the bottle body with the large length-diameter ratio is formed into a seamless sealing container by repeatedly stamping an aluminum plate or a steel plate into a whole, the sealing container can bear higher internal pressure, and the bottle mouth is threaded, so that the sealing container is conveniently and firmly connected with the valve body 20.

The valve body 20 is connected with the fuel storage bottle 10, and the valve body 20 has first accommodation chamber 20a and second accommodation chamber 20b, and first accommodation chamber 20a and second accommodation chamber 20b are the echelonment setting, and the diameter of first accommodation chamber 20a is less than the diameter of second accommodation chamber 20b, and first accommodation chamber 20a is linked together with second accommodation chamber 20b, and stop sleeve 30 sets up in second accommodation chamber 20b and with valve body 20 fixed connection, and stop sleeve 30 has the third and holds chamber 30a. The outside cylinder of valve body 20 has the mating thread, and the valve body 20 and the big major diameter bottle installation of being convenient for are fixed, and hole mating thread is used for spacing sleeve 30 installation to be fixed. The valve body 20 is internally provided with a valve core assembly 40, a first sealing unit 60, an elastic member 50 and a limiting sleeve 30 in sequence.

The valve body 20, the first sealing unit 60, the valve body 40 and the limiting sleeve 30 constitute a cylinder valve assembly for fuel flow control, and the fuel is converted from a liquid state to a gaseous state after passing through the cylinder valve assembly. The first sealing unit 60 is a fluorosilicone rubber gasket, is sleeved on the outer side of the first valve core section 41 and is located between the valve body 20 and the limit sleeve 30, and is used for fuel sealing. The second sealing unit 70 is a fluorosilicone rubber sealing ring, the second sealing unit 70 is arranged between the valve body 20 and the fuel storage bottle body 10, and the second sealing unit 70 is used for sealing between the valve body and the fuel storage bottle body 10 and preventing fuel leakage. The elastic member is a limiting spring.

The upper periphery of the valve body 20 is provided with a sealing ring mounting position, the sealing ring is sealed with a large-length-diameter-ratio fuel storage bottle body to prevent fuel leakage, and a valve core assembly, a limiting spring, a sealing gasket and a limiting sleeve are arranged in the valve body.

The spool assembly 40 includes a first spool segment 41, a second spool segment 42, and a third spool segment 43, which are sequentially connected, the first spool segment 41 having a fourth accommodation chamber 41a and a flow hole group 41b, the fourth accommodation chamber 41a being provided along an axial direction of the first spool segment 41, the flow hole group 41b being provided along a radial direction of the first spool segment 41, the flow hole group 41b being in communication with the fourth accommodation chamber 41a, the spool assembly 40 being for flow control, gaseous fuel reaching the fuel delivery passage through the flow hole group 41 b. The fourth accommodation cavity 41a is communicated with the torch burning area, the diameters of the first valve core section 41 and the third valve core section 43 are smaller than those of the second valve core section 42, the first valve core section 41 is arranged in the first accommodation cavity 20a, the second valve core section 42 and the third valve core section 43 are arranged in the second accommodation cavity 20b, the diameter of the second valve core section 42 is larger than that of the first accommodation cavity 20a, and the elastic piece 50 is arranged in the third accommodation cavity 30a and sleeved outside the third valve core section 43.

The limiting spring is used for rebound and resetting of the bottle valve assembly, the bottle valve assembly moves downwards to the valve core flow small hole to expose the sealing gasket under the action of external force, gaseous fuel is transmitted along the flow small hole, the external force is removed, and the bottle valve assembly moves upwards to the valve core flow small hole to be flush with the sealing gasket under the action of elastic force of the limiting spring, so that the sealing effect is achieved. The spacing sleeve is used for spacing spring's location, utilizes the screw thread to be connected with valve body 20, reaches sealed effect through sealed the pad.

As shown in FIG. 3, the ground hand-held torch gas-liquid conversion fuel supply device is in a sealed state, in this state, the whole bottle valve assembly is in a sealed state, so that fuel in a fuel bottle can be prevented from leaking, the valve core assembly 40 is pushed to move downwards by being opened by the external force applied by the force application unit, when the flow hole group in the valve core assembly 40 is lower than the lower edge of the sealing gasket, gaseous fuel reaches the flow hole group through the small holes at the lower end of the limit sleeve, and then reaches the central main channel of the valve core assembly, and the whole fuel reaches the torch combustion area through the conveying channel.

In summary, the utility model provides a ground hand-held flare gas-liquid conversion fuel supply device, which is provided with a valve body, a limit sleeve, a valve core component and an elastic component, when fuel gas is not required to be supplied, the valve core component is not affected by external force, the elastic component is in an extension state, a flow hole group is attached to the cavity wall of a first accommodating cavity, at the moment, the flow hole group is not communicated with a third accommodating cavity, and no gaseous fuel is supplied; when gas needs to be supplied, the valve core assembly is forced to move to a set position along the axial direction of the valve body, the valve core assembly applies force to the elastic piece to enable the elastic piece to be in a compressed state, the flow hole group is communicated with the third containing cavity, the third containing cavity is communicated with the fuel storage bottle, at the moment, the pressure in the fuel storage bottle changes, liquid fuel is converted into gaseous fuel and enters a torch burning area sequentially through the third containing cavity, the flow hole group and the fourth containing cavity, gas is provided for torch burning, the mode can ensure that the gas-liquid conversion of the torch is sufficient, the fuel supply is uninterrupted, and the stable burning of the torch is ensured. Compared with the prior art, the utility model can effectively solve the technical problem that the torch cannot burn stably caused by unstable gas supply of the torch in the prior art, ensures that the gas and the liquid of the torch are converted fully, ensures that the torch burns stably, has ingenious design, is convenient to open and high sealing safety, can be transported by various ways of water, land and air when the bottle body is filled with fuel, and provides reliable fuel supply for the handheld torch.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. A ground hand-held flare gas-liquid conversion fuel supply apparatus, characterized in that the ground hand-held flare gas-liquid conversion fuel supply apparatus comprises:

a fuel storage bottle body (10), wherein liquid fuel is stored in the fuel storage bottle body (10);

the valve body (20), the valve body (20) is connected with the fuel storage bottle body (10), the valve body (20) is provided with a first accommodating cavity (20 a) and a second accommodating cavity (20 b), the first accommodating cavity (20 a) and the second accommodating cavity (20 b) are arranged in a step shape, the diameter of the first accommodating cavity (20 a) is smaller than that of the second accommodating cavity (20 b), and the first accommodating cavity (20 a) is communicated with the second accommodating cavity (20 b);

the limiting sleeve (30) is arranged in the second accommodating cavity (20 b) and fixedly connected with the valve body (20), and the limiting sleeve (30) is provided with a third accommodating cavity (30 a);

a spool assembly (40), the spool assembly (40) being movably disposed within the valve body (20), the spool assembly (40) comprising a first spool section (41), a second spool section (42) and a third spool section (43) connected in sequence, the first spool section (41) having a fourth receiving chamber (41 a) and a flow bore group (41 b), the fourth receiving chamber (41 a) being disposed along an axial direction of the first spool section (41), the flow bore group (41 b) being disposed along a radial direction of the first spool section (41), the flow bore group (41 b) being in communication with the fourth receiving chamber (41 a), the fourth receiving chamber (41 a) being in communication with a flare combustion region, the diameters of the first spool section (41) and the third spool section (43) being smaller than the diameter of the second spool section (42), the first spool section (41) being disposed within the first receiving chamber (20 a), the second spool section (42) being disposed within the second spool section (20 a), the diameters of the second spool section (42) being disposed within the first spool section (20 a);

an elastic piece (50), wherein the elastic piece (50) is arranged in the third accommodating cavity (30 a) and sleeved outside the third valve core section (43);

wherein, when the gas is not required to be supplied, the elastic piece (50) is in an extension state, the flow hole group (41 b) is attached to the cavity wall of the first accommodating cavity (20 a), and the flow hole group (41 b) is not communicated with the third accommodating cavity (30 a); when gas is required to be supplied, the valve core assembly (40) is forced to move to a set position along the axial direction of the valve body (20), the valve core assembly (40) applies force to the elastic piece (50) to enable the elastic piece (50) to be in a compressed state, and the flow hole group (41 b) is communicated with the third accommodating cavity (30 a).

2. The ground-held flare gas-liquid converted fuel supply apparatus of claim 1, wherein the first spool section (41) has a plurality of flow hole groups (41 b), a plurality of the flow hole groups (41 b) being disposed at intervals along the axial direction of the first spool section (41).

3. The ground-held flare gas-liquid converted fuel supply apparatus of claim 2 wherein any one of said flow orifice groups (41 b) comprises a plurality of flow orifices, a plurality of said flow orifices being located in a same cross section of said first spool section (41), a plurality of said flow orifices being evenly spaced around the periphery of said first spool section (41).

4. A ground hand-held torch gas-liquid converted fuel supply device according to any of claims 1 to 3, further comprising a first sealing unit (60), the first sealing unit (60) being arranged within the third receiving cavity (30 a), the first sealing unit (60) being sleeved outside the first spool section (41) and between the valve body (20) and the limiting sleeve (30).

5. The ground hand-held flare gas-to-liquid fuel supply apparatus of claim 4 further comprising a second sealing unit (70), said second sealing unit (70) being disposed between said valve body (20) and said fuel storage bottle (10).

6. The ground-held torch gas-liquid conversion fuel supply device of claim 5, wherein the first sealing unit (60) is a fluorosilicone rubber gasket and the second sealing unit (70) is a fluorosilicone rubber gasket.

7. The ground hand-held flare gas-to-liquid fuel supply apparatus of claim 1, further comprising a force applying unit for driving the valve core assembly (40) to move in the axial direction of the valve body (20).

8. The ground-held flare gas-to-liquid conversion fuel supply apparatus of claim 7, wherein the resilient member (50) comprises a spring.

9. The floor hand-held flare gas-to-liquid fuel supply apparatus of claim 7 further comprising a fuel supply unit connected to the fuel storage bottle (10) for supplying fuel to the fuel storage bottle (10).

10. A hand-held torch comprising a torch combustion unit and a ground hand-held torch gas-liquid conversion fuel supply device as defined in any one of claims 1 to 9 for providing gaseous fuel to the torch combustion unit.

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