Argon arc welding protective cover

Abstract

The utility model discloses an argon arc welding protective cover which is provided with a support, a vertical rod is erected in the center of the upper portion of the support, an unequal-length lever is installed above the vertical rod, a balance weight box is installed at the long end of the unequal-length lever, and a protective cover is installed at the short end of the unequal-length lever. The argon arc welding protective cover is scientific, simple, convenient and practical in technical scheme, and the argon arc welding protective cover is simple in manufacturing process and easy to manufacture. In the using process, a large amount of argon is saved, air near a weld joint is better isolated, a large amount of heat is taken away through rapid outflow of the flow guide opening, the weld joint quality is improved, later maintenance troubles are reduced, and manpower and material resources are saved. As a whole, the argon arc welding protective cover has the advantages of being high in applicability, safe, economical, easy, convenient and efficient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of protective covers, in particular to an argon arc welding protective cover. Background Art

[0002] The argon arc welding protective cover is used in the process of butt welding of cylinders.

[0003] At present, when welding the circumferential seam of a thick plate cylinder by argon arc welding, the plate groove is generally a double-sided V-shaped weld. After the root welding is completed on one side, the other side needs to be root cleaned and polished to remove the defects of oxidation of the material weld. However, root cleaning of the groove is time-consuming and laborious, and if not paid attention to, it will damage the original processed groove surface and cause defects such as slag inclusion. For this reason, the traditional solution is to continuously blow the easily oxidized zone on the back of the welding place with an argon gas spray gun. To achieve the protection effect and prevent oxidation, a large amount of argon gas is consumed, and it cannot fully ensure that the easily oxidized zone is completely covered. Therefore, the argon arc welding protective cover is designed to achieve air isolation and protection of the easily oxidized zone with less argon gas loss. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an argon arc welding protective cover to solve the problems put forward in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] An argon arc welding protective cover is provided with a support. A vertical rod is erected at the center above the support. An unequal-length lever is installed above the vertical rod. A counterweight box is installed at the long end of the unequal-length lever, and a protective cover is installed at the short end of the unequal-length lever.

[0007] As a further scheme of the utility model: The unequal-length lever rotates smoothly with the vertical rod as the fulcrum.

[0008] As a further scheme of the utility model: The protective cover is composed of an interface, an air chamber and a sealing rubber, and a diversion port is arranged on the air chamber.

[0009] As a further scheme of the utility model: Counterweight blocks are placed in the counterweight box, and the positions of the counterweight blocks are adjusted to make the protective cover fit the shell.

[0010] As a still further scheme of the utility model: A trachea is connected to one end of the interface far away from the air chamber.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The technical solution of the utility model is scientific, simple and practical. The manufacturing process of the argon arc welding protection cover is simple and easy to manufacture. A large amount of argon gas is saved during the use process, the air near the weld is better isolated, and a large amount of heat is taken away by the rapid outflow of the diversion port, improving the weld quality, reducing the trouble of later maintenance, and saving manpower and material resources. Generally speaking, the argon arc welding protection cover has the advantages of strong applicability, safety, economy, simplicity and high efficiency in use. Brief Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of the argon arc welding protection cover.

[0014] Figure 2 It is the front view of the argon arc welding protection cover.

[0015] Figure 3 It is the side view of the argon arc welding protection cover.

[0016] In the figure: 1 - counterweight box, 2 - unequal-length lever, 3 - support, 4 - air pipe, 5 - interface, 6 - air chamber, 7 - sealing rubber, 8 - diversion port. Detailed Embodiment

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0018] Embodiment 1

[0019] Please refer to Figures 1-3 , an argon arc welding protection cover, provided with a support 3. A vertical rod is erected at the center above the support 3, and an unequal-length lever 2 is installed above the vertical rod. A counterweight box 1 is installed at the long end of the unequal-length lever 2, and a protection cover is installed at the short end of the unequal-length lever 2.

[0020] Preferably, the unequal-length lever 2 rotates smoothly with the vertical rod as the fulcrum.

[0021] Preferably, the protection cover is composed of an interface 5, an air chamber 6 and a sealing rubber 7. The sealing rubber 7 fits with the outer shape of the cylinder to maintain basic sealing. A diversion port 8 is provided on the air chamber 6 to facilitate the discharge of air and argon gas and take away the heat of the weld.

[0022] Preferably, counterweight blocks are placed in the counterweight box 1, and the position of the counterweight blocks is adjusted to make the protection cover fit with the shell.

[0023] Preferably, a trachea 4 is connected to one end of the interface 5 away from the air chamber 6. After opening the argon gas, welding operations can be carried out. This component reduces argon waste, ensures the quality at the weld, improves efficiency and saves costs, creating conditions for high-quality and efficient construction in argon arc welding.

[0024] Working principle: First, place the support 3 in a suitable position, place the counterweight in the counterweight box 1, so that the sealing rubber 7 fits onto both sides of the cylindrical weld in reasonable positions and will not detach randomly. Connect the trachea 4 to the interface 5. After the trachea 4 is ventilated, welding operations can be carried out in cooperation with the slow rotation of the cylinder. During the construction process, the gas in the trachea 4 enters the air chamber 6, and the air in the air chamber 6 is discharged through the diversion port 8. After welding is completed, stop ventilating the trachea 4 and place each component in its designated position. One working process of the argon arc welding protection cover ends.

[0025] It should be specifically noted that: The technical solution of the present utility model is scientific, simple, and practical. The manufacturing process of the argon arc welding protection cover is simple and easy to manufacture. A large amount of argon gas is saved during use, better isolating the air near the weld. The diversion port quickly discharges and takes away a large amount of heat, improving the weld quality, reducing the trouble of later maintenance, and saving manpower and material resources. Overall, the argon arc welding protection cover has the advantages of strong applicability, safety, economy, and simple and efficient use.

[0026] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to encompass all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model.

[0027] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A argon arc welding protective cover, provided with a support (3), characterized in that: A vertical pole is erected at the center of the upper part of the support (3), an unequal length lever (2) is installed above the vertical pole, a counterweight box (1) is installed at the long end of the unequal length lever (2), and a protective cover is installed at the short end of the unequal length lever (2).

2. The argon arc welding protective cover according to claim 1, characterized in that: The unequal length levers (2) rotate smoothly with the vertical rod as a fulcrum.

3. The argon arc welding protective cover according to claim 1, characterized in that: The protective cover is composed of an interface (5), an air chamber (6) and a sealing rubber (7), and a flow guide port (8) is provided on the air chamber (6).

4. The argon arc welding protective cover according to claim 1, characterized in that: A counterweight block is placed in the counterweight box (1), and the position of the counterweight block is adjusted so that the protective cover fits the shell.

5. The argon arc welding protective cover according to claim 3, characterized in that: The interface (5) is connected to an air pipe (4) at one end away from the air chamber (6).

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