Flame gun

Abstract

The utility model discloses a flame gun. The flame gun comprises a gun body and an air valve assembly. The gun body comprises a handle part and a main body part, the air valve assembly comprises a valve body, a first valve assembly and a second valve assembly, the valve body is provided with an air inlet, an air outlet, a first air path channel and a second air path channel, and the air inlet and the air outlet are independently communicated through the first air path channel and the second air path channel. The first valve assembly is arranged in the first gas path channel, and the second valve assembly is arranged in the second gas path channel. The gas valve assembly is connected into the gun body, and the gas inlet is located in the main body part and used for being connected with a gas container. As the gas inlet is formed in the main body part instead of the handle part, when the gas container is mounted at the gas inlet, the weights of the main body part and the handle part borne by the gas container can be balanced more easily, so that the flame gun can be vertically placed on bearing surfaces such as a tabletop through the gas container; and therefore, the use convenience and safety of the flame gun can be improved.

Description

Technical Field

[0001] This application relates to the technical field of food cooking appliances, and particularly to a blowtorch. Background Art

[0002] A blowtorch is an ignition heating tool derived from an existing gas cylinder (such as a butane gas cylinder). The existing blowtorches are mainly divided into two forms according to the number of gas paths of their gas valves: single gas path and double gas path. The blowtorch with a single gas path has only one gas flow path, while the blowtorch with a double gas path has two independently ventilated gas flow paths, and the two independent gas paths can be respectively used to achieve different functions.

[0003] Currently, the problem with the blowtorch with a double gas path is that the air inlet of the gas valve of the blowtorch is not in the vertical direction (generally in the horizontal direction at its tail), resulting in that it cannot directly connect the gas cylinder to the middle position of the gun body of the blowtorch like the blowtorch with a single gas path, so that the blowtorch with the connected gas cylinder can be directly placed upright on the table by relying on the gas cylinder. However, for the blowtorch with a double gas path, a bent metal pipe is required to extend the air inlet at the tail of the gas valve to the bottom of the gun handle on the gun body (it is difficult to extend it to the middle position of the gun body), which makes the blowtorch with a double gas path installed with a gas cylinder unable to be placed upright on the table, thus bringing inconvenience in use and safety problems. In addition, the processing and installation of the bent pipe will also increase the product cost. Utility Model Content

[0004] The main technical problem to be solved by this utility model is that the existing blowtorch with a double gas path cannot be placed upright on the table after installing the gas cylinder, thus bringing inconvenience in use and safety problems, and the indirect connection between the air inlet and the gas cylinder through a bent pipe will lead to an increase in product cost.

[0005] In one embodiment, a blowtorch is provided, including:

[0006] A gun body, the gun body includes a handle part and a main body part, and the handle part is connected to one end of the main body part;

[0007] And a gas valve assembly, the gas valve assembly includes a valve body, a first valve assembly and a second valve assembly. The valve body has an air inlet, an air outlet, a first gas path channel and a second gas path channel. The first gas path channel and the second gas path channel both independently connect the air inlet and the air outlet; the first valve assembly is arranged in the first gas path channel to control the air flow rate of the first gas path channel, and the second valve assembly is arranged in the second gas path channel to control the opening and closing of the second gas path channel;

[0008] The gas valve assembly is connected to the gun body, and the air inlet is located in the main body part, and the air inlet is used to connect with a gas container.

[0009] In one embodiment, the main body portion extends along a first axis, and the main body portion has a first end and a second end that are oppositely arranged along the first axis. The handle portion extends and is provided at the first end of the main body portion. The air outlet is located at the second end of the main body portion, and the air inlet is located between the first end and the second end.

[0010] In one embodiment, the main body portion extends along a first axis. The opening direction of the air inlet is perpendicular to the first axis, and the opening direction of the air outlet is parallel to the first axis.

[0011] In one embodiment, the main body portion further has a first side and a second side, and the first side and the second side are oppositely arranged along a direction perpendicular to the first axis; both the air inlet and the handle portion are located on the second side of the main body portion.

[0012] In one embodiment, the valve body has a first mating port communicating with a first air passage. The first mating port is located on the first side of the main body portion, and the opening direction of the first mating port is perpendicular to the first axis; the first valve assembly mates with the first mating port and extends into the first air passage from the first mating port to adjust the air flow rate of the first air passage.

[0013] In one embodiment, the air valve assembly further includes an adjustment knob. The adjustment knob is located on the first side of the main body portion, and the adjustment knob is connected to the first valve assembly; the adjustment knob is used to drive the first valve assembly to rotate to adjust the air flow rate of the first air passage.

[0014] In one embodiment, the valve body has a second mating port communicating with the second air passage. The second mating port is located between the air inlet and the first mating port in a direction perpendicular to the first axis, and the opening direction of the second mating port is parallel to the first axis; the second valve assembly mates with the second mating port and extends into the second air passage from the second mating port to control the opening and closing of the second air passage.

[0015] In one embodiment, the air valve assembly further includes an adjustment button. The adjustment button is located at the first end of the main body portion, and the adjustment button is connected to the second valve assembly and is used to open or close the second valve assembly when triggered.

[0016] In one embodiment, it further includes a barrel. The barrel is connected to the first end of the main body portion, and the barrel communicates with the air outlet.

[0017] In one embodiment, it further includes a gas container, which is connected to the air inlet so that the internal space of the gas container communicates with the air inlet; and when the gas container is placed on a bearing surface, the orthographic projection of the center of gravity of the blowtorch on the bearing surface coincides with the orthographic projection of the bottom of the gas container on the bearing surface.

[0018] According to the blowtorch of the above embodiment, the blowtorch includes a gun body and a gas valve assembly. The gun body includes a handle part and a main body part, and the handle part is connected to one end of the main body part. The gas valve assembly includes a valve body, a first valve assembly and a second valve assembly. The valve body has an air inlet, an air outlet, a first gas path channel and a second gas path channel. The first gas path channel and the second gas path channel both independently connect the air inlet and the air outlet. The first valve assembly is arranged in the first gas path channel to control the air flow rate of the first gas path channel, and the second valve assembly is arranged in the second gas path channel to control the opening and closing of the second gas path channel. The gas valve assembly is connected inside the gun body, and the air inlet is located in the main body part and is used to connect with a gas container. On the one hand, when using the blowtorch, the user can control the air flow rate of the first gas path channel through the first valve assembly, so as to realize the gear adjustment or stepless adjustment of the blowtorch firepower. The user can also control the opening of the second gas path channel through the second valve assembly, so that a large amount of combustible gas flows from the second gas path channel to the air outlet, thereby greatly increasing the firepower of the blowtorch. On the other hand, since the air inlet is arranged on the main body part instead of the handle part, when the gas container is installed on the air inlet, it is easier to balance the weights of the main body part and the handle part carried by the gas container, which is beneficial to make the blowtorch stand upright on a bearing surface such as a table through the gas container, and further beneficial to improve the convenience and safety of using the blowtorch. And the gas container can be directly connected to the air outlet without indirectly connecting the air inlet and the gas container through a bent pipe, which is beneficial to reduce the production cost of the blowtorch. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of the blowtorch from a three-dimensional perspective in an embodiment of the present application;

[0020] Figure 2 It is a schematic structural diagram of the blowtorch from a side view perspective in an embodiment of the present application;

[0021] Figure 3 It is a schematic cross-sectional view of the blowtorch in an embodiment of the present application;

[0022] Figure 4 It is an exploded view of the barrel and the gas valve assembly in an embodiment of the present application;

[0023] Reference Numerals: 100, gun body; 110, handle portion; 120, main body portion; 121, first end; 122, second end; 123, first side; 124, second side; 200, air valve assembly; 210, valve body; 211, air inlet; 212, air outlet; 213, first gas passage; 214, second gas passage; 215, first mating port; 216, second mating port; 220, first valve assembly; 221, valve core; 230, second valve assembly; 231, check valve; 240, adjustment knob; 250, adjustment button; 260, transmission member; 300, barrel; 400, gas container. Detailed Embodiment

[0024] The present utility model will be further described in detail below in conjunction with the accompanying drawings through specific embodiments. Similar elements in different embodiments are labeled with related similar reference numerals. In the following embodiments, many detailed descriptions are provided to enable a better understanding of the present application. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification, which is to avoid the core part of the present application being overwhelmed by excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the descriptions in the specification and the general technical knowledge in the art.

[0025] In addition, the features, operations, or characteristics described in the specification can be combined in any appropriate manner to form various embodiments. At the same time, the steps or actions in the method description can also be reordered or adjusted in a manner obvious to those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for clearly describing a certain embodiment and do not mean that they are the necessary sequences, unless it is stated that a certain sequence must be followed.

[0026] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meanings. And the "connection" and "coupling" mentioned in the present application, unless otherwise specified, both include direct and indirect connections (couplings).

[0027] This embodiment provides a blowtorch.

[0028] Please refer to Figures 1-4 , the blowtorch includes a gun body 100 and an air valve assembly 200.

[0029] Please refer to Figures 1-4, the gun body 100 includes a handle portion 110 and a main body portion 120, and the handle portion 110 is connected to one end of the main body portion 120. The air valve assembly 200 includes a valve body 210, a first valve assembly 220, and a second valve assembly 230. The valve body 210 has an air inlet 211, an air outlet 212, a first air passage 213, and a second air passage 214. Both the first air passage 213 and the second air passage 214 independently connect the air inlet 211 and the air outlet 212. The first valve assembly 220 is disposed in the first air passage 213 for controlling the air flow rate of the first air passage 213, and the second valve assembly 230 is disposed in the second air passage 214 for controlling the opening and closing of the second air passage 214. The air valve assembly 200 is connected inside the gun body 100, and the air inlet 211 is located in the main body portion 120, and the air inlet 211 is used to connect with the gas container 400.

[0030] On the one hand, when using the blowtorch, the user can control the air flow rate of the first air passage 213 through the first valve assembly 220, so as to achieve gear adjustment or stepless adjustment of the blowtorch firepower. The user can also control the opening of the second air passage 214 through the second valve assembly 230, so that a large amount of combustible gas flows from the second air passage 214 to the air outlet 212, thereby greatly increasing the firepower of the blowtorch. On the other hand, since the air inlet 211 is provided on the main body portion 120 instead of on the handle portion 110, when the gas container 400 is installed on the air inlet 211, it is easier to balance the weights of the main body portion 120 and the handle portion 110 carried by the gas container 400, which is beneficial to make the blowtorch stand upright on a bearing surface such as a tabletop through the gas container 400, and further beneficial to improve the convenience and safety of using the blowtorch. And the gas container 400 can be directly connected to the air outlet 212 without indirectly connecting the air inlet 211 and the gas container 400 through a bent pipe, which is beneficial to reduce the production cost of the blowtorch.

[0031] Among them, "both the first air passage 213 and the second air passage 214 independently connect the air inlet 211 and the air outlet 212" can be understood as that both the first air passage 213 and the second air passage 214 can independently achieve the control of opening and closing or air flow rate adjustment.

[0032] Please refer to Figure 3 and 4 , in one embodiment, the first valve assembly 220 can select a valve core 221, and the second valve assembly 230 can select a check valve 231. In another embodiment, the first valve assembly 220 and the second valve assembly 230 can also be configured as the same valve. For example, both the first valve assembly 220 and the second valve assembly 230 are configured as check valves 231.

[0033] It should be noted that the blowtorch may or may not include the gas container 400. That is, the gas container 400 can be regarded as a component of the blowtorch. In this case, the blowtorch includes the gas container 400. The gas container 400 can also be regarded as an independent consumable used in conjunction with the blowtorch. In this case, the blowtorch does not include the gas container 400. Specifically, the gas container 400 can be a common gas cylinder.

[0034] Please refer to Figures 1-3 , in one embodiment, when the gas container 400 is regarded as a component of the blowtorch, the blowtorch further includes the gas container 400. The gas container 400 is connected to the air inlet 211 so that the internal space of the gas container 400 communicates with the air inlet 211. And when the gas container 400 is placed on the bearing surface, the orthographic projection of the center of gravity of the blowtorch on the bearing surface coincides with the orthographic projection of the bottom of the gas container 400 on the bearing surface.

[0035] On the one hand, after the user connects the gas container 400 to the air inlet 211, the internal space of the gas container 400 communicates with the air inlet 211, so that the combustible gas in the gas container 400 can flow into the cavity from the air inlet 211 and flow to the air outlet 212 through the first gas path channel 213 and / or the second gas path channel 214 for being ignited. On the other hand, after the user finishes using the blowtorch, the user can place the blowtorch upright on a bearing surface such as a tabletop or a countertop through the gas container 400. At this time, since the orthographic projection of the center of gravity of the blowtorch on the bearing surface coincides with the orthographic projection of the bottom of the gas container 400 on the bearing surface, the blowtorch is not easily toppled, which is beneficial to improving the convenience and safety of placing the blowtorch.

[0036] Please refer to Figure 1 and 2 , in one embodiment, the main body portion 120 extends along the first axis, and the main body portion 120 has a first end 121 and a second end 122 oppositely arranged along the first axis. The handle portion 110 extends and is arranged at the first end 121 of the main body portion 120, the air outlet 212 is located at the second end 122 of the main body portion 120, and the air inlet 211 is located between the first end 121 and the second end 122.

[0037] On the one hand, the handle portion 110 extends from the first end 121 of the main body portion 120, and the air inlet 211 is located between the first end 121 and the second end 122, so that the air inlet 211 is not located on the handle portion 110, and it is convenient to balance the weight between the first end 121 and the second end 122, which is beneficial to ensure that the blowtorch can be stably placed on the bearing surface through the gas container 400. On the other hand, the handle portion 110 and the air outlet 212 are respectively located at the first end 121 and the second end 122, so that when the user holds the handle portion 110 and operates the blowtorch, the air outlet 212 for spraying the flame is far away from the user's hand, which is beneficial to improve the safety of the blowtorch. Specifically, the "first axis" can be regarded as Figure 2 the axis L1 in

[0038] Please refer to Figure 1 and 2 , in an embodiment, the main body portion 120 extends along the first axis, the opening direction of the air inlet 211 is perpendicular to the first axis, and the opening direction of the air outlet 212 is parallel to the first axis.

[0039] The air inlet 211 is opened in a direction perpendicular to the first axis, that is, the air inlet 211 is opened in the vertical direction when the blowtorch is placed upright in the actual application scenario, which is convenient for directly connecting the gas container 400 to the air inlet 211. In the traditional solution, when the air inlet 211 is horizontally opened, the air inlet direction needs to be changed through a bent pipe, and the gas container 400 can only be indirectly connected to the air inlet 211 through the bent pipe. It can be seen that the solution of this embodiment can simplify the installation structure and reduce the production cost. And the air outlet 212 is opened in a direction parallel to the first axis, which conforms to the operation habit of the user when operating the blowtorch, which is beneficial to ensure the use experience of the user when operating the blowtorch.

[0040] Please refer to Figure 1 and 2 , in an embodiment, the main body portion 120 further has a first side 123 and a second side 124, and the first side 123 and the second side 124 are oppositely arranged along a direction perpendicular to the first axis. The air inlet 211 and the handle portion 110 are both located on the second side 124 of the main body portion 120.

[0041] When the user places and uses the blowtorch, the second side 124 of the main body portion 120 is usually located below the first side 123. On the one hand, this conforms to the operation habit of the user, that is, when the user holds the handle portion 110, most of the hand and the handle portion 110 are located below the main body portion 120, which is convenient for the user to operate the blowtorch. On the other hand, when the gas container 400 is installed on the air inlet 211, it is also located at the lower part of the blowtorch, which is not only beneficial to ensure the safety of the blowtorch, but also convenient for placing the blowtorch upright on the bearing surface through the gas container 400 after using the blowtorch.

[0042] Please refer to Figures 2-4 , in one embodiment, the valve body 210 has a first mating port 215 communicating with the first gas passage 213. The first mating port 215 is located on the first side 123 of the main body 120, and the opening direction of the first mating port 215 is perpendicular to the first axis. The first valve assembly 220 cooperates with the first mating port 215 and extends into the first gas passage 213 from the first mating port 215 to adjust the ventilation volume of the first gas passage 213.

[0043] When it is necessary to adjust the flame power of the blowtorch, the user can adjust the opening degree of the first gas passage 213 through the first valve assembly 220, so as to adjust the ventilation volume of the first gas passage 213, and further achieve the purpose of adjusting the flame power of the blowtorch. And the first valve assembly 220 and the first mating port 215 are arranged on the first side 123 of the main body 120, that is, in the actual application scenario, the first valve assembly 220 is located on the upper side of the main body 120, so as to facilitate the user to observe and operate the first valve assembly 220.

[0044] Please refer to Figures 2-4 , in one embodiment, the gas valve assembly 200 further includes an adjustment knob 240. The adjustment knob 240 is located on the first side 123 of the main body 120, and the adjustment knob 240 is connected to the first valve assembly 220. The adjustment knob 240 is used to drive the first valve assembly 220 to rotate to adjust the ventilation volume of the first gas passage 213.

[0045] When using the blowtorch, the user can rotate the adjustment knob 240 to drive the first valve assembly 220 to rotate, so as to change the opening degree of the first gas passage 213, make the ventilation volume of the first gas passage 213 change, and further realize the stepless adjustment of the flame power of the blowtorch. Specifically, the first valve assembly 220 can be selected as a valve core 221 that is rotationally assembled in the first mating port 215 and can change the opening degree by its own rotation.

[0046] Please refer to Figures 2-4 , in one embodiment, the valve body 210 has a second mating port 216 communicating with the second gas passage 214. The second mating port 216 is located between the air inlet 211 and the first mating port 215 in the direction perpendicular to the first axis, and the opening direction of the second mating port 216 is parallel to the first axis. The second valve assembly 230 cooperates with the second mating port 216 and extends into the second gas passage 214 from the second mating port 216 to control the opening and closing of the second gas passage 214.

[0047] When using the blowtorch, the user can open or close the second gas passage 214 through the second valve assembly 230. When the second gas passage 214 is open, a large amount of combustible gas can flow through the second gas passage 214 to the air outlet 212, thereby increasing the firepower of the blowtorch. Since the second mating port 216 is located between the air inlet 211 and the first mating port 215 in a direction perpendicular to the first axis, that is, the second mating opening and the second valve assembly 230 are generally located inside the main body 120 in the vertical direction, which facilitates the setting of the transmission member 260 for triggering the second valve assembly 230 inside the main body 120.

[0048] Please refer to Figures 2-4 , in one embodiment, the air valve assembly 200 further includes an adjustment button 250. The adjustment button 250 is located at the first end 121 of the main body 120, and the adjustment button 250 is connected to the second valve assembly 230 and is used to open or close the second valve assembly 230 when triggered.

[0049] When using the blowtorch, the user can press the adjustment button to open or close the second valve assembly 230. When the second valve assembly 230 is open, a large amount of combustible gas can flow through the second gas passage 214 to the air outlet 212, thereby increasing the firepower of the blowtorch, and thus realizing the "one-key high-fire" function of the blowtorch. This not only expands the functions of the blowtorch but also provides a more flexible operation method for the user. Specifically, the adjustment button 250 can indirectly drive the second valve assembly 230 to open or close through the transmission member 260 provided inside the main body 120, or it can be directly connected to the second valve assembly 230. The second valve assembly 230 can be a check valve 231.

[0050] Please refer to Figures 1-3 , in one embodiment, the blowtorch further includes a barrel 300. The barrel 300 is connected to the first end 121 of the main body 120, and the barrel 300 is in communication with the air outlet 212.

[0051] On the one hand, the barrel 300 is in communication with the air outlet 212, so that the barrel 300 plays a role in restraining and guiding the ejected flame, which is beneficial to improving the safety of the blowtorch. On the other hand, when the gas container 400 is connected between the first end 121 and the second end 122 of the main body 120, since the barrel 300 is connected to the first end 121 of the main body 120, it also has the effect of weight balancing with the handle portion 110 at the second end 122 of the main body 120, which is beneficial to increasing the stability of the blowtorch when it is placed upright on the bearing surface through the gas container 400.

[0052] The above uses specific examples to elaborate on the present utility model, which is only used to help understand the present utility model and is not intended to limit the present utility model. For those skilled in the technical field to which the present utility model pertains, based on the idea of the present utility model, several simple deductions, deformations or substitutions can also be made.

Claims

1. A blowtorch, characterized in that, Comprising: A gun body, the gun body including a handle portion and a main body portion, the handle portion being connected to one end of the main body portion; And an air valve assembly, the air valve assembly including a valve body, a first valve assembly and a second valve assembly, the valve body having an air inlet, an air outlet, a first air passage and a second air passage, the first air passage and the second air passage both independently connecting the air inlet and the air outlet; the first valve assembly is disposed in the first air passage for controlling the air flow rate of the first air passage, and the second valve assembly is disposed in the second air passage for controlling the opening and closing of the second air passage; The air valve assembly is connected within the gun body, and the air inlet is located in the main body portion, and the air inlet is used for connecting with a gas container.

2. The blowtorch according to claim 1, characterized in that, The main body portion extends along a first axis, and the main body portion has a first end and a second end oppositely disposed along the first axis, the handle portion extends and is disposed at the first end of the main body portion, the air outlet is located at the second end of the main body portion, and the air inlet is located between the first end and the second end.

3. The blowtorch according to claim 1, characterized in that, The main body portion extends along a first axis, the opening direction of the air inlet is perpendicular to the first axis, and the opening direction of the air outlet is parallel to the first axis.

4. The blowtorch according to claim 2 or 3, characterized in that, The main body portion further has a first side and a second side, the first side and the second side are oppositely disposed along a direction perpendicular to the first axis; both the air inlet and the handle portion are located on the second side of the main body portion.

5. The blowtorch according to claim 4, wherein The valve body has a first mating port communicating with the first air passage, the first mating port is located on the first side of the main body portion, and the opening direction of the first mating port is perpendicular to the first axis; the first valve assembly mates with the first mating port and extends into the first air passage from the first mating port to adjust the air flow rate of the first air passage.

6. The blowtorch according to claim 5, characterized in that, The air valve assembly further includes an adjustment knob, the adjustment knob is located on the first side of the main body portion, and the adjustment knob is connected to the first valve assembly; the adjustment knob is used to drive the first valve assembly to rotate to adjust the air flow rate of the first air passage.

7. The blowtorch according to claim 5, wherein, The valve body has a second mating port communicating with the second air passage, the second mating port is located between the air inlet and the first mating port in a direction perpendicular to the first axis, and the opening direction of the second mating port is parallel to the first axis; the second valve assembly mates with the second mating port and extends into the second air passage from the second mating port to control the opening and closing of the second air passage.

8. The blowtorch according to claim 7, characterized in that, The air valve assembly further includes an adjustment button, the adjustment button is located at the first end of the main body portion, and the adjustment button is connected to the second valve assembly for causing the second valve assembly to open or close when triggered.

9. The blowtorch according to claim 2, wherein, It further includes a barrel, the barrel is connected to the first end of the main body portion, and the barrel communicates with the air outlet.

10. The blowtorch according to claim 1, characterized in that, It further includes a gas container, which is connected to the air inlet so that the internal space of the gas container communicates with the air inlet; and when the gas container is placed on a bearing surface, the orthographic projection of the center of gravity of the blowtorch on the bearing surface coincides with the orthographic projection of the bottom of the gas container on the bearing surface.

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