A double-tube propane electronic heating torch

Abstract

The utility model discloses a double-tube propane electronic heating torch, which belongs to the technical field of welding equipment. It includes: an air intake handle, the tail end of which is connected to an air intake joint; two gas pipes; a connecting body, two gas pipes are installed on the connecting body, and the connecting body and the head end of the air intake handle are connected through a main valve; a switching valve is installed on the connecting body and is used to open or cut off the air intake of one of the gas pipes. The switching valve can realize free switching between the single-tube firing mode and the double-tube firing mode, which improves the adaptability of the heating torch, allowing users to use the single-tube mode when fine heating is required, and switch to the double-tube mode when pursuing high heat output, which saves energy and improves work efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding equipment, and in particular relates to a double-tube propane electronic heating torch. Background Art

[0002] A heating torch, also often called a gas welding torch or welding and cutting torch, is a tool that uses a high-temperature flame generated by mixing gas fuel (such as acetylene, propane, etc.) with oxygen to heat, melt or cut metal. It is widely used in many fields such as metal processing, manufacturing, maintenance and construction.

[0003] The traditional heating torch has the defect that the ignition mode is not flexible enough. It is generally a single-tube ignition structure or a double-tube simultaneous ignition structure, and cannot be flexibly adjusted according to actual needs to achieve switching between single-tube ignition and double-tube ignition. Utility Model Content

[0004] The utility model aims at the above problems existing in the prior art and proposes a double-tube propane electronic heating torch which can switch between single-tube firing and double-tube firing.

[0005] The utility model can be realized through the following technical solutions:

[0006] A double-tube propane electronic heating torch, comprising:

[0007] An air inlet handle, the tail end of which is connected to an air inlet connector;

[0008] There are two gas pipes;

[0009] A connecting body, on which the two gas pipes are mounted, and the connecting body is connected to the head end of the gas inlet handle via a main valve;

[0010] A switching valve is installed on the connecting body and is used to open or cut off the air inlet of one of the gas pipes. The single-tube firing mode or the double-tube firing mode is switched by the switching valve.

[0011] As a further improvement of the present utility model, the end of the gas pipe is connected to the connecting body through a connecting joint, and the connecting body has a main air intake channel and two branch air intake channels. The two gas pipes are respectively connected to the two branch air intake channels through the connecting joint, and the main valve is used to open or cut off the main air intake channel.

[0012] As a further improvement of the present invention, the switching valve is inserted from the side of the connecting body, and one of the branch air intake channels is connected to the main air intake channel through the cavity where the switching valve is located.

[0013] As a further improvement of the present invention, the switching valve includes a switching valve adjusting hand wheel, and the switching valve is rotated to drive the switching valve stem to move axially, thereby achieving connection or disconnection between one of the branch air intake channels and the main air intake channel.

[0014] As a further improvement of the present invention, a filter is installed in the connecting joint, and the gas enters the gas pipe after passing through the filter.

[0015] As a further improvement of the utility model, a first communicating channel and a second communicating channel are provided in the main valve, the first communicating channel is communicated with the air intake handle, and the second communicating channel is communicated with the main air intake channel.

[0016] As a further improvement of the utility model, the main valve also includes a main valve stem and a main valve adjusting hand wheel. The main valve stem is driven to move in the main valve by rotating the main valve adjusting hand wheel. The main valve stem opens or cuts off the opening between the first connecting channel and the second connecting channel by moving.

[0017] As a further improvement of the present invention, the air inlet connector has an air inlet nozzle, and the air inlet connector is also provided with an air inlet adjustment hand wheel. The air inlet nozzle is used to connect to an external air source, and the air inlet adjustment hand wheel is used to open or cut off the air inlet between the air inlet connector and the air inlet handle.

[0018] As a further improvement of the utility model, an electronic ignition device is provided in the gas pipe.

[0019] As a further improvement of the utility model, an inner nozzle is further provided in the gas pipe, and the inner nozzle is close to the fire outlet end of the gas pipe and has a spiral fire outlet channel.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] 1. The switching valve can be used to freely switch between the single-tube firing mode and the double-tube firing mode, which improves the adaptability of the heating torch. Users can use the single-tube mode when fine heating is required, and switch to the double-tube mode when high heat output is required, which saves energy and improves work efficiency.

[0022] 2. A filter is installed in the connection joint. The gas is filtered before entering the gas pipe, which can effectively ensure the combustion quality and extend the service life of the equipment. The pure gas helps to maintain the stability and consistency of the flame, which is especially important for the heating or welding process that requires precise control. Reducing impurities can avoid flame instability, flashback or flameout, and improve the reliability and safety of the operation;

[0023] 3. The gas pipe is also equipped with an inner nozzle, which can finely adjust the mixed airflow of gas and oxygen (or air) to control the shape, size and intensity of the flame. The inner nozzle has a spiral fire outlet channel, which can make the airflow form a vortex before the fire comes out, which helps the gas and oxygen to mix more fully, making the flame more uniform and efficient, which is especially important for operations that require precise heating or cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a cross-sectional view of the double-tube propane electronic heating torch of the utility model;

[0025] Figure 2 It is a cross-sectional view of the main valve and the gas pipe of the utility model.

[0026] In the figure, 100, air intake handle;

[0027] 200, air inlet connector; 210, air inlet nozzle; 220, air inlet adjustment hand wheel;

[0028] 300, gas pipe; 310, connecting joint; 320, filter; 330, electronic ignition device; 340, inner nozzle;

[0029] 400, connecting body; 410, main air inlet channel; 420, branch air inlet channel;

[0030] 500, main valve; 510, first communication channel; 520, second communication channel; 530, valve stem; 540, main valve adjustment hand wheel;

[0031] 600, switching valve; 610, switching valve stem; 620, switching valve adjusting hand wheel. DETAILED DESCRIPTION

[0032] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical method of the present invention, but the present invention is not limited to these embodiments.

[0033] like Figure 1-2 As shown, the utility model provides a double-tube propane electronic heating torch, comprising:

[0034] An air inlet handle 100, the tail end of which is connected to an air inlet connector 200;

[0035] There are two gas pipes 300, and two independent gas pipes 300 are used to provide a more powerful fire output, which is suitable for occasions requiring rapid heating or large-scale heating;

[0036] A connecting body 400, on which the two gas pipes 300 are mounted, and the connecting body 400 and the head end of the gas inlet handle 100 are connected via a main valve 500;

[0037] The switching valve 600 is installed on the connecting body 400 and is used to open or cut off the air inlet of one of the gas pipes 300. The single-tube firing mode or the double-tube firing mode is switched by the switching valve 600.

[0038] The switching valve 600 is a highlight of the design, which allows users to switch between single-tube and double-tube firing modes according to actual needs through simple operations. This design improves the adaptability of the heating torch, allowing users to use the single-tube mode when fine heating is required, and switch to the double-tube mode when high heat output is required, which saves energy and improves work efficiency.

[0039] Preferably, the end of the gas pipe 300 is connected to the connection body 400 through a connection joint 310, ensuring air tightness and stability of the connection;

[0040] The connecting body 400 has a main air inlet channel 410 and two branch air inlet channels 420. The two gas pipes 300 are connected to the two branch air inlet channels 420 through the connecting joints 310. This design allows the gas to first enter through the main air inlet channel 410 and then be diverted to the two branch air inlet channels 420. Each branch air inlet channel 420 corresponds to a gas pipe 300. This design not only optimizes the gas distribution, but also facilitates the macro-control of the overall gas supply by controlling the main air inlet channel 410.

[0041] The main valve 500 controls the opening or closing of the main air intake channel 410. When the main valve 500 is closed, all air supplies will be cut off regardless of the single-tube or double-tube mode. This is an important safety control point, which facilitates rapid disconnection of the air source in an emergency to prevent accidents.

[0042] Preferably, the switching valve 600 is inserted from the side of the connecting body 400, and one of the branch air inlet channels 420 is connected to the main air inlet channel 410 through the cavity where the switching valve 600 is located;

[0043] The connection or disconnection between a specific branch air intake channel 420 and the main air intake channel 410 is achieved through the cavity where the switching valve 600 is located. This means that when the switching valve 600 is in a certain position, it will connect a branch air intake channel 420 with the main air intake channel 410, so that the corresponding gas pipe 300 can obtain a gas source supply, thereby enabling a single-tube fire mode. When switched to another position, both branch air intake channels 420 are connected to the main air intake channel 410, and the two gas pipes 300 supply gas at the same time, realizing a dual-tube fire mode. This design can efficiently switch between two working modes through the simple action of a single valve, greatly improving the flexibility and practicality of the equipment.

[0044] In addition, the switching valve 600 has a switching valve stem 610 and a switching valve adjustment hand wheel 620. By rotating the switching valve 620 to drive the switching valve stem 610 to move axially, the connection or disconnection between the specific branch air intake channel 420 and the main air intake channel 410 is achieved.

[0045] Preferably, a filter 320 is installed in the connection joint 310, and the gas enters the gas pipe 300 after passing through the filter 320. The main function of the filter 320 is to remove impurities in the gas, such as dust, moisture or other tiny particles;

[0046] If these impurities enter the heating torch with the air flow, they may clog the nozzle, affect the combustion efficiency, or even damage the equipment. By filtering the gas before it enters the gas pipe 300, the combustion quality can be effectively guaranteed and the service life of the equipment can be extended.

[0047] In addition, pure gas helps maintain flame stability and consistency, which is especially important for heating or welding processes that require precise control. Reducing impurities can avoid flame instability, flashback or flameout, and improve the reliability and safety of operations.

[0048] Preferably, the main valve 500 has a first communicating channel 510 and a second communicating channel 520 therein, the first communicating channel 510 is communicated with the air intake handle 100 , and the second communicating channel 520 is communicated with the main air intake channel 410 .

[0049] Furthermore, the main valve 500 also includes a main valve stem 530 and a main valve adjusting hand wheel 540, which constitute the core of the control mechanism. By rotating the main valve adjusting hand wheel 540, the main valve stem 530 will move axially inside the main valve 500. When the main valve stem 530 moves to a specific position, it can open or close the opening between the first connecting channel 510 and the second connecting channel 520. This opening is a key path for gas flow. When the opening is fully opened, the gas can flow unimpeded from the air intake handle 100 through the first connecting channel 510 to the second connecting channel 520, and then reach the main air intake channel 410; conversely, when the opening is closed, the gas flow is blocked.

[0050] The user can manually rotate the main valve adjustment hand wheel 540 to quickly and accurately adjust the gas flow to meet the gas demand under different operating conditions. In addition, in an emergency, the gas source can be quickly shut off to prevent gas leakage and ensure safe operation.

[0051] Preferably, the air inlet connector 200 has an air inlet nozzle 210, and the air inlet connector 200 is also provided with an air inlet regulating hand wheel 220, the air inlet nozzle 210 is used to connect to an external air source, and the air inlet regulating hand wheel 220 is used to open or cut off the air inlet between the air inlet connector 200 and the air inlet handle 100;

[0052] The air inlet regulating hand wheel 220 of the air inlet connector 200 forms the front inlet of the gas control of the heating torch, and together with the subsequent main valve 500 and the switching valve 600, constructs a multi-level gas management system.

[0053] Preferably, an electronic ignition device 330 is provided in the gas pipe 300. The electronic ignition device 330 is a commonly used technical means, so its specific structure is not described in detail. Integrating the electronic ignition device 330 in the gas pipe 300 means that the heating torch can achieve fast and reliable ignition without a fire source.

[0054] Preferably, an inner nozzle 340 is further provided in the gas pipe 300. The inner nozzle 340 is close to the fire outlet end of the gas pipe 300 and has a spiral fire outlet channel. The inner nozzle 340 can finely adjust the mixed airflow of gas and oxygen (or air), thereby controlling the shape, size and intensity of the flame. The spiral channel can form a vortex in the airflow before the fire, which helps the gas and oxygen to mix more fully, making the flame more uniform and efficient, which is particularly important for operations that require precise heating or cutting.

[0055] The technical means disclosed in the scheme of the utility model are not limited to the technical means disclosed by the above technical means, but also include technical solutions composed of any combination of the above technical features. The above is a specific implementation method of the utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

[0056] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0057] In addition, in the present invention, the descriptions of "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0058] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A double-tube propane electronic heating torch, characterized in that: include: An air inlet handle, the tail end of which is connected to an air inlet connector; There are two gas pipes; A connecting body, on which the two gas pipes are mounted, and the connecting body is connected to the head end of the gas inlet handle via a main valve; A switching valve is installed on the connecting body and is used to open or cut off the air inlet of one of the gas pipes. The single-tube firing mode or the double-tube firing mode is switched by the switching valve.

2. A double-tube propane electronic heating torch according to claim 1, characterized in that: The end of the gas pipe is connected to the connection body through a connecting joint. The connection body has a main air intake channel and two branch air intake channels. The two gas pipes are respectively connected to the two branch air intake channels through the connecting joint. The main valve is used to open or cut off the main air intake channel.

3. A double-tube propane electronic heating torch according to claim 2, characterized in that: The switching valve is inserted from the side of the connecting body, and one of the branch air intake channels is communicated with the main air intake channel through the cavity where the switching valve is located.

4. A double-tube propane electronic heating torch according to claim 3, characterized in that: The switching valve comprises a switching valve regulating hand wheel, and the switching valve is rotated to drive the switching valve stem to move axially, thereby realizing the connection or disconnection between one of the branch air intake channels and the main air intake channel.

5. A double-tube propane electronic heating torch according to claim 2, characterized in that: A filter is installed in the connecting joint, and the gas enters the gas pipe after passing through the filter.

6. A double-tube propane electronic heating torch according to claim 3, characterized in that: The main valve has a first communicating channel and a second communicating channel therein, the first communicating channel is communicated with the air intake handle, and the second communicating channel is communicated with the main air intake channel.

7. A double-tube propane electronic heating torch according to claim 6, characterized in that: The main valve also includes a main valve stem and a main valve regulating hand wheel. The main valve stem is driven to move in the main valve by rotating the main valve regulating hand wheel. The main valve stem opens or cuts off the opening between the first connecting channel and the second connecting channel by moving.

8. A double-tube propane electronic heating torch according to claim 1, characterized in that: The air inlet connector has an air inlet nozzle and is also provided with an air inlet regulating hand wheel. The air inlet nozzle is used to connect to an external air source, and the air inlet regulating hand wheel is used to open or cut off the air inlet between the air inlet connector and the air inlet handle.

9. A double-tube propane electronic heating torch according to claim 1, characterized in that: An electronic ignition device is arranged in the gas pipe.

10. A double-tube propane electronic heating torch according to claim 1, characterized in that: An inner nozzle is also arranged in the gas pipe. The inner nozzle is close to the fire outlet end of the gas pipe and has a spiral fire outlet passage.

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