Adapter for cutting torch

Abstract

The utility model relates to an adapter for a cutting torch. Comprising an adapter body, and a fuel gas hole is formed in the center in the adapter body; internal threads are arranged at the bottom end of an inner cavity of the gas hole; an internal thread groove is formed in the bottom end of the adapter body around the gas hole; an oxygen hole is formed in the position, close to the fuel gas hole, in the adapter body. A groove is formed in a position, corresponding to the oxygen hole, of the top end of the adapter body; external threads are arranged on the outer side of the adapter body; a fixing groove is formed in the position, below the external thread, of the outer side of the adapter body. The cutting torch adapter solves the problems that due to the fact that a cutting torch adapter in the prior art is simple in structure and poor in oxygen absorption effect in practical application, oxygen is difficult to enter a cutting torch from the outside to be mixed with gas, gas in the cutting torch adapter is prone to backflow in the conveying process, and the service life of the cutting torch adapter is prolonged. And therefore, the gas mixing effect is poor, and the cutting effect of the cutting torch is affected.

Description

Technical Field

[0001] The utility model relates to the field of cutting nozzle adapters, in particular to an adapter for a cutting nozzle. Background Art

[0002] Flame cutting machine is a machine that uses high-temperature flame to cut metal materials. It injects combustible gas into the cutting area and ignites these gases through sparks. The high-temperature flame generated is used as a cutting tool to cut by heating and oxidizing metal materials. Metal pipes are a common type of pipes. Flame cutting machines can be used to cut pipe interfaces such as bevel cutting, related wire cutting, and special-shaped cutting to meet the construction requirements of different sites. The tool with a valve used for cutting with a cutting gun is slightly like a gun and has a nozzle at the front. It is also called a cutting torch. The cutting gun generally has three switches. The top one is the high-pressure oxygen switch, which is commonly known as the high-wind switch; the one below the high-wind switch is the mixed gas switch; and the last switch is the acetylene switch. The cutting nozzle is a component placed at the front end of the cutting gun for mixing gas. In the industrial production process, some metal materials need to be cut to a certain extent so that the metal materials can be cut into the shape described. In order to make cutting more convenient, gasification cutting is often used. When gasification cutting is performed, corresponding cutting nozzles are often installed to ensure normal flame spraying.

[0003] When the cutting nozzle is installed on the cutting gun, it needs to be installed in conjunction with the cutting nozzle adapter. However, the cutting nozzle adapter in the existing technical solution has a relatively simple structure and a poor effect of absorbing oxygen in actual applications. Therefore, it is difficult for oxygen to enter the cutting nozzle from the outside and mix with the fuel gas. At the same time, it is easy to cause the fuel gas in the cutting nozzle adapter to flow back during the transportation process, which leads to poor gas mixing effect, which in turn affects the cutting effect of the cutting nozzle. Utility Model Content

[0004] The embodiment of the present application provides an adapter for a cutting nozzle, thereby solving the technical problem that the cutting nozzle adapter in the prior art solution has a relatively simple structure and a poor effect of absorbing oxygen in actual application. Therefore, it is difficult for oxygen to enter the cutting nozzle from the outside and mix with the fuel gas. At the same time, it is easy to cause the fuel gas in the cutting nozzle adapter to flow back during the transportation process, which leads to poor gas mixing effect, thereby affecting the cutting effect of the cutting nozzle.

[0005] The technical solution adopted in the embodiment of the present application is as follows:

[0006] An adapter for a cutting nozzle comprises an adapter body, wherein a gas hole is provided at the center position inside the adapter body; an internal thread is provided at the bottom end of the inner cavity of the gas hole; an internal thread groove is provided around the gas hole at the bottom end of the adapter body; an oxygen hole is provided inside the adapter body near the gas hole; a groove is provided at the top of the adapter body at a position corresponding to the oxygen hole; an external thread is provided on the outside of the adapter body; and a fixing groove is provided on the outside of the adapter body at a position below the external thread.

[0007] A further technical solution is that the diameter of the bottom opening of the gas hole is smaller than the diameter of the top opening of the gas hole.

[0008] A further technical solution is: the caliber of the oxygen hole in contact with the bottom end of the groove is larger than the caliber of the oxygen hole in contact with the top end of the groove.

[0009] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0010] 1. Due to the arrangement of the adapter body, the gas hole, the internal thread groove, the oxygen hole, the groove and the fixing groove, and the external thread arranged on the outside of the adapter body, the top of the adapter body can be threadedly installed on the cutting gun, and the internal thread groove is arranged around the gas hole at the bottom of the adapter body, so that the cutting nozzle can be threadedly connected to the bottom of the adapter body, so it is convenient for the staff to install and disassemble the cutting nozzle. The fixing groove can facilitate the staff to fix the adapter body during the production and processing of the adapter body. When the adapter body, the cutting gun and the cutting nozzle are assembled, when the cutting gun transports gas to the gas hole in the adapter body, at this time, since the caliber of the oxygen hole in contact with the bottom of the groove is larger than the caliber of the oxygen hole in contact with the top of the groove, the structure of the oxygen hole can form a Venturi structure, so the oxygen hole can produce the effect of absorbing oxygen, thereby preventing the gas hole from backflowing during the gas transportation process, and at the same time, the gas transported in the gas hole and the oxygen absorbed by the oxygen hole can be effectively mixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of an adapter for a cutting nozzle in an embodiment of the utility model.

[0012] Figure 2 It is a schematic diagram of the overall internal structure of an adapter for a cutting nozzle in an embodiment of the utility model.

[0013] In the figure: 1. adapter body; 2. gas hole; 3. internal thread groove; 4. oxygen hole; 5. groove; 6. fixing groove. DETAILED DESCRIPTION

[0014] The embodiment of the present application provides an adapter for a cutting nozzle, thereby solving the technical problem that the cutting nozzle adapter in the prior art solution has a relatively simple structure and a poor effect of absorbing oxygen in actual application. Therefore, it is difficult for oxygen to enter the cutting nozzle from the outside and mix with the fuel gas. At the same time, it is easy to cause the fuel gas in the cutting nozzle adapter to flow back during the transportation process, which leads to poor gas mixing effect, thereby affecting the cutting effect of the cutting nozzle.

[0015] The technical solution in the embodiment of the present application is to solve the above problems, and the overall idea is as follows:

[0016] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] An adapter for a cutting nozzle, such as Figure 1 and Figure 2 As shown, it includes an adapter body 1, and a gas hole 2 is opened at the center position inside the adapter body 1. An internal thread is set at the bottom end of the inner cavity of the gas hole 2. An internal thread groove 3 is opened around the gas hole 2 at the bottom end of the adapter body 1. An oxygen hole 4 is opened inside the adapter body 1 near the gas hole 2. A groove 5 is opened at the top of the adapter body 1 at a position corresponding to the oxygen hole 4. An external thread is set on the outside of the adapter body 1. A fixing groove 6 is opened on the outside of the adapter body 1 below the external thread.

[0018] The diameter of the bottom opening of the gas hole 2 is smaller than the diameter of the top opening of the gas hole 2 .

[0019] The diameter of the oxygen hole 4 in contact with the bottom end of the groove 5 is larger than the diameter of the oxygen hole 4 in contact with the top end of the groove 5 .

[0020] The outer side of the adapter body 1 is provided with an external thread, so that the top of the adapter body 1 can be threadedly installed on the cutting gun. The bottom of the adapter body 1 is provided with an internal thread groove 3 around the gas hole 2, so that the cutting nozzle can be threadedly connected to the bottom of the adapter body 1. A groove 5 is provided at the top of the adapter body 1 corresponding to the oxygen hole 4, and the structure of the groove 5 can be a fan-shaped structure or a whole ring structure. The outer side of the adapter body 1 is provided with a plurality of groups of symmetrically arranged fixing grooves 6 at a position below the external thread.

[0021] Due to the arrangement of the adapter body 1, the gas hole 2, the internal thread groove 3, the oxygen hole 4, the groove 5 and the fixing groove 6, the adapter body 1 is provided with an external thread on the outside, so that the top of the adapter body 1 can be threadedly installed on the cutting gun, and the internal thread groove 3 is provided around the gas hole 2 at the bottom of the adapter body 1, so that the cutting nozzle can be threadedly connected to the bottom of the adapter body 1, so that it is convenient for the staff to install and disassemble the cutting nozzle. The fixing groove 6 can facilitate the staff to fix the adapter body 1 during the production and processing of the adapter body 1. When the adapter body 1, the cutting gun and the cutting nozzle are assembled, when the cutting gun transports gas to the gas hole 2 in the adapter body 1, at this time, since the caliber of the oxygen hole 4 in contact with the bottom of the groove 5 is larger than the caliber of the oxygen hole 4 in contact with the top of the groove 5, the structure of the oxygen hole 4 can constitute a Venturi structure, so that the oxygen hole 4 can produce the effect of absorbing oxygen, thereby preventing the gas hole 2 from backflowing during the gas transportation process, and at the same time, the gas transported in the gas hole 2 and the oxygen absorbed by the oxygen hole 4 can be effectively mixed.

[0022] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0023] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An adapter for a cutting nozzle, comprising an adapter body (1), characterized in that: A gas hole (2) is provided at the center of the adapter body (1); an internal thread is provided at the bottom of the inner cavity of the gas hole (2); an internal thread groove (3) is provided at the bottom of the adapter body (1) around the gas hole (2); an oxygen hole (4) is provided inside the adapter body (1) near the gas hole (2); a groove (5) is provided at the top of the adapter body (1) at a position corresponding to the oxygen hole (4); an external thread is provided on the outside of the adapter body (1); and a fixing groove (6) is provided on the outside of the adapter body (1) at a position below the external thread.

2. The cutting nozzle adapter according to claim 1, characterized in that: The diameter of the bottom opening of the gas hole (2) is smaller than the diameter of the top opening of the gas hole (2).

3. The cutting nozzle adapter according to claim 2, characterized in that: The diameter of the oxygen hole (4) in contact with the bottom end of the groove (5) is larger than the diameter of the oxygen hole (4) in contact with the top end of the groove (5).

Images