Nitrogen and heating rod containing shell device for welding

Abstract

The utility model relates to the technical field of welding, in particular to a shell device used for welding and containing nitrogen and a heating rod. The shell device comprises a first shell and a second shell, a gas inlet is formed in the side face of the first shell, a first through hole is formed in one end of the first shell, gas outlets are formed in the peripheral side of the first through hole, the gas inlet is used for nitrogen input, and the gas outlets are communicated with the gas inlet and used for nitrogen output; the heating rod is located in the first shell, and a containing space between the heating rod and the inner side of the first shell is used for containing nitrogen; one end of the welding head is located in the shell and abuts against and is fixed to the heating rod, and the other end of the welding head is exposed out of the first through hole. Nitrogen and preheating can be effectively combined, so that operation in the welding process is simpler and more convenient, the welding efficiency is improved, and the input cost is reduced.

Description

Technical Field

[0001] The present application relates to the field of welding technology, and in particular to a shell device for accommodating nitrogen and a heating rod for welding. Background Art

[0002] Currently, in welding processes, nitrogen protection is often required to prevent oxidation in the welding area to ensure welding quality. At the same time, the preheating process is also crucial to reduce welding stress and prevent cracks.

[0003] Traditionally, nitrogen shielding for welding uses nitrogen hoods or local nitrogen displacement devices, while preheating often relies on external heating devices such as flame heaters or electric heating rods. While effective, these solutions have the disadvantages of requiring too much equipment, being inconvenient to operate, and requiring high energy consumption.

[0004] In the prior art, nitrogen and preheating are usually achieved through independent equipment, and nitrogen and preheating are not effectively combined, resulting in complex operations, low efficiency, and high costs during the welding process. Utility Model Content

[0005] The purpose of this application is to overcome the above technical problems and provide a shell device for accommodating nitrogen and heating rods for welding, which can effectively combine nitrogen with preheating, making the operation during welding simpler, improving welding efficiency and reducing investment costs.

[0006] The present application provides a housing device for accommodating nitrogen and a heating rod for welding, comprising:

[0007] A shell device for accommodating nitrogen and a heating rod for welding, comprising: a first shell, having an air inlet provided on a side surface, a first through hole provided at one end, and air outlets provided around the first through hole, wherein the air inlet is used for supplying nitrogen input, and the air outlet is connected to the air inlet for supplying nitrogen output; a heating rod located in the first shell, wherein the accommodating space between the heating rod and the inner side of the first shell is used for accommodating nitrogen; a welding head, one end of which is located in the shell and abutted and fixed to the heating rod, and the other end of which is exposed from the first through hole.

[0008] By employing this technical solution, nitrogen enters the first shell through the air inlet, is heated by the heating rod, and then evenly discharged through the air outlet, providing a stable protective atmosphere for the welding area. The welding head is fixed to the heating rod by abutment, achieving precise heating of the welding area. This effectively combines nitrogen with preheating, making the welding process more convenient, improving welding efficiency, and reducing investment costs.

[0009] Optionally, the shell device for accommodating nitrogen and a heating rod for welding further includes: a second shell, one end of which is mounted on the first shell, and the other end is configured to be conical and provided with a welding hole, wherein the end of the welding head away from the heating rod passes through the welding hole, and the nitrogen is output from the air outlet and the welding hole in sequence.

[0010] By adopting the above technical solution, nitrogen is output from the air outlet and passes through the welding hole to form a more concentrated protective airflow, which can effectively prevent oxidation and contamination during the welding process. In this way, the provision of the second shell can enhance the protection effect of the welding area.

[0011] Optionally, the shell device for accommodating nitrogen and a heating rod for welding further includes: a sleeve member for being sleeved on an end of the heating rod away from the welding head, and the outer peripheral side of the sleeve member abuts against the inner side of the first shell.

[0012] By adopting the above technical solution, the sleeve member enhances the stability between the heating rod and the first shell, preventing the heating rod from shaking during welding, thereby improving welding quality. Furthermore, the outer periphery of the sleeve member abuts the inner side of the first shell, effectively preventing nitrogen from escaping from the end of the first shell away from the gas outlet.

[0013] Optionally, the shell device for accommodating nitrogen and a heating rod for welding further includes: a first fixing member, which is sleeved on the heating rod and located in the first shell, and a limiting groove is provided at one end of the first fixing member for accommodating one end of the welding head in the limiting groove and abutting the heating rod, wherein one end of the welding head is set relative to the shape of the limiting groove; a second fixing member, which is sleeved on the welding head and the first fixing member, is located in the first shell, and the second fixing member is fixed on the first fixing member.

[0014] By adopting the above technical solution, the first and second fixing members cooperate to fix the heating rod and the welding head, thereby achieving a stable connection between the welding head and the heating rod. The provision of the limiting groove ensures precise alignment and positioning of the welding head and the heating rod, thereby preventing the welding head from rotating during the welding process, thereby improving the welding effect.

[0015] Optionally, the shell device for accommodating nitrogen and a heating rod for welding further includes: a fixed adjustment member, which is used to pass through the first fixing member and abut against the heating rod, wherein an adjustment hole is provided on the first fixing member corresponding to the fixed adjustment member.

[0016] By adopting the above technical solution, setting a fixed adjustment member can facilitate more flexible and adjustable installation of the first fixing member and the heating rod, so as to cooperate with the second fixing member to achieve a fixed connection between the welding head and the heating rod.

[0017] Optionally, a second through hole is provided on the sleeve, wherein an end of the heating rod away from the welding head is exposed from the second through hole.

[0018] By adopting this technical solution, the second through-hole design on the sleeve not only facilitates the insertion of the heating rod, but also ensures a tight fit between the heating rod and the sleeve, improving the sealing performance of the device. In addition, the end of the heating rod away from the welding head is exposed through the second through-hole, facilitating the connection of external circuits to ensure heating of the heating rod.

[0019] Optionally, a plurality of slots are provided on the circumferential side of the second shell that is sleeved on the first shell.

[0020] By adopting the above technical solution, the arrangement of multiple slots can facilitate the second shell to be sleeved on the first shell, thereby facilitating the assembly of the shell device.

[0021] Optionally, an extension tube is provided at the air inlet.

[0022] By adopting the above technical solution, providing an extension tube can facilitate users to connect to an external nitrogen source, thereby improving the convenience and applicability of the device.

[0023] Optionally, the air outlet holes are evenly distributed around the first through hole.

[0024] By adopting the above technical solution, arranging the gas outlet holes to be evenly distributed around the first through hole can enable the nitrogen to evenly cover the welding area, thereby further improving the welding quality and protection effect.

[0025] Optionally, the welding head and the heating rod are detachably connected.

[0026] By adopting the above technical solution, the detachable connection between the welding head and the heating rod can facilitate users to maintain and replace parts of the device, reducing the cost of use and the difficulty of maintenance.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. By adopting the combined structure of the first shell and the heating rod, the heating rod heats the nitrogen, and the welding operation is performed using the welding head. At the same time, the nitrogen is output from the outlet to protect the welding area, thereby improving the welding quality and efficiency;

[0029] 2. Through the setting of the second shell, nitrogen is output from the air outlet and passes through the welding hole to form a more concentrated protective airflow, which can effectively prevent oxidation and contamination during the welding process;

[0030] 3. The design of the sleeve can effectively fix the position of the heating rod to prevent it from moving during operation, thereby improving the stability and safety of the device;

[0031] 4. Through the coordinated use of the first fixing member and the second fixing member, a firm connection between the welding head and the heating rod is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic plan view of the structure of a housing device for accommodating nitrogen and a heating rod for welding disclosed in an embodiment of the present application;

[0033] Figure 2 for Figure 1 A schematic diagram of an explosion structure of a housing device containing nitrogen and a heating rod for welding is shown;

[0034] Figure 3 for Figure 1 A schematic structural diagram of one end surface of a first shell of a shell device for accommodating nitrogen and a heating rod for welding is shown;

[0035] Figure 4 for Figure 1 The figure shows a schematic structural diagram of one end surface of a first fixing member of a shell device for accommodating nitrogen and a heating rod for welding.

[0036] Description of reference numerals:

[0037] 10. First shell; 11. Air inlet; 12. First through hole; 13. Air outlet; 14. Extension tube; 20. Heating rod; 21. Accommodation space; 30. Welding head; 40. Second shell; 41. Welding hole; 42. Slot; 50. Sleeve; 51. Second through hole; 60. First fixing member; 61. Limiting groove; 62. Adjustment hole; 70. Second fixing member. DETAILED DESCRIPTION

[0038] The terms used in the following examples of the present application are for the purpose of describing specific embodiments only and are not intended to limit the present application. As used in the specification and appended claims of this application, the singular expressions "a," "an," "above," "the," and "this" are intended to include plural expressions as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used in this application refers to and encompasses any and all possible combinations of one or more of the listed items.

[0039] In the following, the terms "first" and "second" are used for descriptive purposes only and should not be understood to imply or suggest relative importance or implicitly indicate the number of the technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of this application, unless otherwise specified, "plurality" means two or more.

[0040] The technical solutions of the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0041] See also Figure 1 , is a shell device for accommodating nitrogen and a heating rod for welding disclosed in an embodiment of the present application, including a first shell 10, a heating rod 20 and a welding head 30.

[0042] The first shell 10 is cylindrical in shape and has an air inlet 11 on the side for supplying nitrogen from an external nitrogen source. Of course, other inert nitrogen gases can also be used. Figure 2 A first through hole 12 is provided at one end of the first shell 10 for the welding head 30 to pass through, and an air outlet 13 is provided around the first through hole 12 for nitrogen output.

[0043] See also Figure 1 The heating rod 20 is located within the first housing 10, with one end abutting the welding head 30. Nitrogen gas is filled in the accommodation space 21 between the heating rod 20 and the inner side of the first housing 10. One end of the welding head 30 is located within the housing and abuts and fixes the heating rod 20. The other end, the welding end (tip), is exposed through the first through-hole 12.

[0044] In this way, an external nitrogen source enters the first housing 10 through the inlet 11, is heated by the heating rod 20, and is evenly discharged through the outlet 13, providing a stable protective atmosphere for the welding area. The welding head 30 is fixed to the heating rod 20 by abutting it, achieving precise heating of the welding area. This effectively combines nitrogen with preheating, making the welding process more convenient, improving welding efficiency, and reducing investment costs.

[0045] Specifically, an extension tube 14 is provided at the air inlet 11 to facilitate connection to an external nitrogen source, improving the device's convenience and applicability. Air outlets 13 are evenly distributed around the first through-hole 12 on the first housing 10, ensuring more uniform nitrogen coverage of the weld area, further improving weld quality and protection. The welding head 30 and heating rod 20 are detachably connected, facilitating maintenance and component replacement, reducing cost and maintenance effort.

[0046] See also Figure 1 and Figure 2The shell device also includes: a second shell 40, one end of which is sleeved on the first shell 10, and the other end is set to be conical and provided with a welding hole 41 for the end of the welding head 30 away from the heating rod 20 to pass through.

[0047] The nitrogen is output from the air outlet 13 and the welding hole 41 in sequence, and combined with the conical setting of the second shell 40, when the nitrogen passes through the welding hole 41, a more concentrated protective airflow is formed on the welding head 30, thereby effectively preventing oxidation and contamination during the welding process. Figure 2 As shown in .

[0048] See also Figure 3 A plurality of slots 42 are provided on the peripheral side of the second shell 40 on which the first shell 10 is sleeved. The slot 42 structure can be as follows: Figure 2 As shown in , this makes it easier for the second shell 40 to be sleeved on the first shell 10, thereby facilitating the assembly of the shell device.

[0049] See also Figure 1 and Figure 3 In order to facilitate the connection of one end of the heating rod 20 away from the welding head 30 to an external power source to ensure the heating of the heating rod 20 , in this embodiment, one end of the heating rod 20 is exposed to the first shell 10 .

[0050] Furthermore, in order to prevent nitrogen from escaping from the end of the first shell 10 away from the welding head 30 due to the exposure of the heating rod 20, the present embodiment further includes a sleeve 50, and a second through hole 51 is correspondingly provided on the sleeve 50 for exposing the heating rod 20.

[0051] The outer circumference of the sleeve 50 is also arranged to abut against the inner side of the first housing 10. Thus, the provision of the second through-hole 51 not only facilitates the insertion of the heating rod 20, but also ensures a tight fit between the heating rod 20 and the sleeve 50, effectively preventing nitrogen from escaping from the other end of the first housing 10 away from the air outlet 13, thereby improving the sealing performance of the device.

[0052] Here, it is worth mentioning that the sleeve 50 can further enhance the stability between the heating rod 20 and the first shell 10, preventing the heating rod 20 from shaking during the welding process, thereby improving the welding quality.

[0053] See also Figure 3 and Figure 4 In order to strengthen the abutment stability between the heating rod 20 and the welding head 30 , in this embodiment, a first fixing member 60 and a second fixing member 70 are further included.

[0054] Among them, one end of the first fixing member 60 is sleeved on the heating rod 20 and is located in the first shell 10, and one end of the first fixing member 60 is provided with a limiting groove 61 (see Figure 4 ), for one end of the welding head 30 to be accommodated in the limiting groove 61 and abut against the heating rod 20, wherein the one end of the welding head 30 is configured relative to the shape of the limiting groove 61. This ensures that the welding head 30 and the heating rod 20 are accurately aligned and limited, preventing the welding head 30 from rotating during the welding process, further improving the welding effect.

[0055] The second fixing member 70 can be screwed onto the welding head 30 and the first fixing member 60 and is located within the first housing 10. The second fixing member 70 is screwed onto the first fixing member 60. By cooperating with the first fixing member 60 and the second fixing member 70 to secure the heating rod 20 and the welding head 30, a stable connection between the welding head 30 and the heating rod 20 can be achieved. Furthermore, the welding head 30 can be easily disassembled for replacement.

[0056] Specifically, an adjustment hole 62 is provided on the first fixing member 60. In this embodiment, the shell device also includes a fixed adjustment member for passing through the adjustment hole 62 and abutting the heating rod 20. Such a fixed adjustment member can facilitate the installation of the first fixing member 60 and the heating rod 20 to be more flexible and adjustable, so as to cooperate with the second fixing member 70, so that the welding head 30 and the heating rod 20 are fixedly connected.

[0057] In summary, the embodiment of the present application discloses a housing device for accommodating nitrogen and a heating rod for welding. By arranging for nitrogen to enter the first housing 10 through the air inlet 11, be heated by the heating rod 20, and then be uniformly discharged from the air outlet 13, it can provide a stable protective atmosphere for the welding area. The welding head 30 is fixed to the heating rod 20 by abutting, enabling precise heating of the welding area. This effectively combines nitrogen with preheating, making the welding process more convenient, improving welding efficiency, and reducing investment costs.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A housing device for accommodating nitrogen and a heating rod for welding, characterized in that: include: A first shell (10) is provided with an air inlet (11) on a side surface, a first through hole (12) at one end, and an air outlet (13) is provided around the first through hole (12), wherein the air inlet (11) is used for nitrogen input, and the air outlet (13) is connected to the air inlet (11) for nitrogen output; A heating rod (20) is located in the first shell (10), wherein an accommodating space (21) between the heating rod (20) and the inner side of the first shell (10) is used to accommodate nitrogen; A welding head (30) has one end located in the shell and abutted against and fixed to the heating rod (20), and the other end exposed from the first through hole (12).

2. The housing device for accommodating nitrogen and a heating rod for welding according to claim 1, characterized in that: Also includes: The second shell (40) has one end sleeved on the first shell (10), and the other end is configured to be conical and provided with a welding hole (41), wherein the end of the welding head (30) away from the heating rod (20) passes through the welding hole (41), and nitrogen is output from the gas outlet (13) and the welding hole (41) in sequence.

3. The housing device for accommodating nitrogen and a heating rod for welding according to claim 1, characterized in that: Also includes: The sleeve member (50) is used for being sleeved on an end of the heating rod (20) away from the welding head (30), and the outer peripheral side of the sleeve member (50) abuts against the inner side of the first shell (10).

4. The housing device for accommodating nitrogen and a heating rod for welding according to claim 1, characterized in that: Also includes: A first fixing member (60) is sleeved on the heating rod (20) and is located in the first shell (10), and a limiting groove (61) is provided at one end of the first fixing member (60) for allowing one end of the welding head (30) to be accommodated in the limiting groove (61) and abut against the heating rod (20), wherein one end of the welding head (30) is arranged relative to the shape of the limiting groove (61); A second fixing member (70) is sleeved on the welding head (30) and the first fixing member (60), and is located in the first shell (10), and the second fixing member (70) is fixed on the first fixing member (60).

5. The housing device for accommodating nitrogen and a heating rod for welding according to claim 4, characterized in that: Also includes: A fixed adjustment member is used to penetrate the first fixing member (60) and abut against the heating rod (20), wherein an adjustment hole (62) is provided on the first fixing member (60) corresponding to the fixed adjustment member.

6. The housing device for accommodating nitrogen and a heating rod for welding according to claim 3, characterized in that: A second through hole (51) is provided on the sleeve (50), wherein an end of the heating rod (20) away from the welding head (30) is exposed from the second through hole (51).

7. The housing device for accommodating nitrogen and a heating rod for welding according to claim 2, characterized in that: A plurality of slots (42) are provided on the peripheral side of the second shell (40) sleeved on the first shell (10).

8. The housing device for accommodating nitrogen and a heating rod for welding according to claim 2, characterized in that: An extension tube (14) is provided at the air inlet (11).

9. The housing device for accommodating nitrogen and a heating rod for welding according to claim 1, characterized in that: The air outlet holes (13) are evenly distributed around the first through hole (12).

10. The housing device for accommodating nitrogen and a heating rod for welding according to claim 1, characterized in that: The welding head (30) and the heating rod (20) are detachably connected.

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