Cutting torch with anti-impact function

Abstract

The utility model discloses a cutting torch with an anti-impact function, which comprises a cutting torch body, the top of the cutting torch body is fixedly connected with a tail end bolt, an oxygen channel is arranged at the center of the tail end bolt in a penetrating manner, an oxygen nozzle is arranged at the bottom of the oxygen channel, a fuel gas channel is arranged on the outer side of the oxygen channel, and the fuel gas channel is communicated with the tail end bolt. An annular channel is formed in the bottom of the gas channel, a gas nozzle is formed in the bottom of the annular channel, an upper thread is arranged below the tail end plug pin, a lower thread is arranged below the upper thread, the outer side of the cutting torch body is sleeved with a protection sleeve, and the bottom of the protection sleeve is fixedly connected with a bottom protection ring. According to the cutting torch with the anti-impact function, the protection sleeve is rotationally installed on the outer side of the cutting torch body through the threads, so that the cutting torch is protected against impact damage of the side face, the protection ring at the bottom of the protection sleeve protects impact damage of the bottom, and the cutting torch is prevented from impacting a steel plate to be damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of flame cutting, in particular to a cutting nozzle with an anti-impact function. Background Art

[0002] The cutting nozzle is something installed on the head of the cutting torch, which can gather flames and spray high-pressure oxygen, and plays a very important role in gas cutting. The quality of the cutting nozzle directly reflects the cutting efficiency and quality of the cutting torch or cutting machine. For example, the prior art: CN209867629U, an acetylene cutting nozzle, one end of the cutting nozzle is provided with an air inlet end, the other end is provided with an air outlet end, the air inlet end is provided with an air inlet mechanism, the air outlet end is provided with a flame spraying mechanism, and the cutting nozzle also includes an oxygen flow mechanism, which connects the air inlet end and the air outlet end; wherein, the acetylene cutting nozzle includes an outer nozzle and an inner nozzle, the inner nozzle is sleeved in the outer nozzle, a mixed gas chamber is provided between the inner nozzle and the outer nozzle, and the mixed gas chamber connects the air inlet mechanism and the flame spraying mechanism; the oxygen flow mechanism is arranged in the inner nozzle through; the outer nozzle and the inner nozzle cooperate to form a first sealing end and a second sealing end, and the flame spraying mechanism is arranged at the second sealing end. The acetylene cutting nozzle is made of a copper rod, which is first cold-forged to obtain prefabricated parts of an outer nozzle and an inner nozzle, and then the two are sleeved and forged to form an integral structure.

[0003] There are other existing technologies:

[0004] CN219199173U, a cutting nozzle;

[0005] CN207936077U, a cutting nozzle;

[0006] Most of the cutting nozzles mentioned in the above prior art are of one-piece type, which are easily skewed and deformed due to impact during use, making the cutting nozzle structure damaged and unusable. Utility Model Content

[0007] The purpose of the utility model is to provide a cutting nozzle with an anti-impact function to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cutting nozzle with an impact protection function, comprising a cutting nozzle body, characterized in that: an end pin is fixedly connected to the top of the cutting nozzle body, an oxygen channel is opened through the center of the end pin, an oxygen nozzle is arranged at the bottom of the oxygen channel, a gas channel is arranged outside the oxygen channel, an annular channel is arranged at the bottom of the gas channel, a gas nozzle is arranged at the bottom of the annular channel, an upper thread is opened below the end pin, and a lower thread is arranged below the upper thread.

[0009] Preferably, a protective sleeve is sleeved on the outer side of the cutting nozzle body, a bottom protective ring is fixedly connected to the bottom of the protective sleeve, and the bottom end of the bottom protective ring extends out of the bottom end of the cutting nozzle body.

[0010] Preferably, the nozzle body and the protective sleeve are generally made of brass or copper.

[0011] Preferably, there are four gas channels and annular channels in total, and a pressure reducing cavity is arranged above the annular channel.

[0012] Preferably, a sealing ring is arranged at the top of the gas channel.

[0013] Preferably, a hexagonal platform is fixedly connected to the outer side of the nozzle body near the bottom.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. For the nozzle with anti-impact function, gas enters through the gas channel, passes through the pressure reducing cavity and the annular channel, and burns with oxygen at the oxygen nozzle to cut the steel plate. The annular channel increases the channel distance by rotation to prevent flashback, and the pressure reducing cavity enables the gas to adjust the air pressure after entering to prevent excessive pressure from affecting the combustion effect.

[0016] 2. For the nozzle with anti-impact function, the protective sleeve is rotatably installed on the outer side of the nozzle body through threads, so as to protect the nozzle from side impact damage. The protective ring at the bottom of the protective sleeve protects the bottom from impact damage and prevents the nozzle from hitting the steel plate and being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 is a sectional structural view of the present utility model;

[0019] Figure 3 is an exploded schematic structural view of the present utility model.

[0020] In the figure: 1. Nozzle body; 2. Protective sleeve; 3. End pin; 4. Oxygen channel; 5. Gas channel; 6. Sealing ring; 7. Pressure reducing cavity; 8. Annular channel; 9. Gas nozzle; 10. Oxygen nozzle; 11. Upper thread; 12. Lower thread; 13. Hexagonal platform; 14. Bottom protective ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to 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 the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] Example: Please refer to Figure 1 , the present utility model provides a technical solution: a cutting nozzle with an anti-impact function.

[0023] Among them, a terminal pin 3 is fixedly connected to the top of the cutting nozzle body 1. An oxygen channel 4 is provided through the center position of the terminal pin 3. An oxygen nozzle 10 is arranged at the bottom of the oxygen channel 4. A gas channel 5 is arranged outside the oxygen channel 4. An annular channel 8 is arranged at the bottom of the gas channel 5. A gas nozzle 9 is arranged at the bottom of the annular channel 8. An upper thread 11 is provided below the terminal pin 3, and a lower thread 12 is arranged below the upper thread 11.

[0024] In this embodiment, the terminal pin 3 is inserted into the installation hole of the cutting torch. The cutting nozzle body 1 is rotated, and the outer upper thread 11 meshes with the thread on the installation hole. The oxygen channel 4 is docked with the oxygen pipeline on the cutting torch to transport oxygen, and the gas channel 5 is docked with the gas pipeline to transport gas. By opening the valve through the cutting torch, oxygen is ejected from the oxygen nozzle 10 along the oxygen channel 4, and gas is ejected from the gas nozzle 9 through the gas channel 5. The two gases are mixed, and at this time, it is ignited by an external fire source, and the cutting torch is started. The temperature and flame size are adjusted by adjusting the gas delivery speed, and then the cutting begins.

[0025] Among them, a protective sleeve 2 is sleeved outside the cutting nozzle body 1. A bottom protective ring 14 is fixedly connected to the bottom of the protective sleeve 2, and the bottom end of the bottom protective ring 14 extends out of the bottom end of the cutting nozzle body 1.

[0026] In this embodiment, the cutting nozzle body 1 is installed on the cutting torch through the outer upper thread 11 and is rotatably installed on the lower thread 12 through the inner thread of the protective sleeve 2, so as to fix and protect the cutting nozzle body 1 from impact damage on the side. The bottom protective ring 14 of the protective sleeve 2 wraps the bottom of the cutting nozzle body 1 to protect the nozzle from impact damage at the bottom and prevent the cutting nozzle body 1 from hitting the steel plate and being damaged.

[0027] Among them, the cutting nozzle body 1 and the protective sleeve 2 are generally made of brass or copper.

[0028] In this embodiment, the copper cutting nozzle has high thermal conductivity and good wear resistance, and the risk of easy deformation is reduced by the externally provided protective sleeve 2.

[0029] Among them, there are four gas channels 5 and annular channels 8 in total, and a decompression chamber 7 is arranged above the annular channel 8.

[0030] In this embodiment, gas enters the inside of the cutting nozzle body 1 through four gas channels 5 and flows into the pressure reducing chamber 7. After the gas enters the pressure reducing chamber 7, the gas pressure is adjusted to prevent excessive pressure from affecting the combustion effect. Then, the pressure reducing chamber 7 pours the gas into the four annular channels 5. The annular channels 5 are spiral, staggered in sequence, and gas nozzles 9 are opened at the bottom. The length of the annular channels 5 is extended to prevent accidental accidents caused by flame flashback. The gas nozzles 9 are symmetrically arranged, so as to discharge the gas evenly.

[0031] Among them, a sealing ring 6 is arranged at the top of the gas channel 5.

[0032] In this embodiment, as the threads on the cutting nozzle body 1 are engaged in rotation, the cutting nozzle body 1 is fixed on the cutting torch. The top end of the gas channel 5 fits against the gas pipeline, and the sealing ring 6 is squeezed to prevent gas from leaking out from the connection.

[0033] Among them, a hexagonal platform 13 is fixedly connected to the outside of the cutting nozzle body 1 near the bottom.

[0034] In this embodiment, the hexagonal platform 13 facilitates the operator to hold the cutting nozzle body 1 and insert it into the cutting torch for rotational installation and fixation.

[0035] Working principle: The end pin 3 of the cutting nozzle body 1 is inserted into the installation hole of the cutting torch. The cutting nozzle body 1 is rotated, and the external upper threads 11 are engaged with the threads on the installation hole to fix the cutting nozzle body 1, so that the oxygen channel 4 and the gas channel 5 are respectively docked with the corresponding oxygen pipe and gas pipe. The valve is opened, oxygen sprays out from the oxygen nozzle 10 along the oxygen channel 4, the gas enters the pressure reducing chamber 7 through the gas channel 5 for pressure reduction, then passes through the annular channel 8 and sprays out from the gas nozzle 9. The gas and oxygen are mixed and ignited by an external fire source, and the cutting torch starts. The conveying speed of the gas is adjusted to adjust the temperature and the size of the flame, and then the cutting begins.

[0036] In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "installed", "connected", and "connected" should be understood in a broad sense. For example, it 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0037] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cutting nozzle with an anti-impact function, comprising a cutting nozzle body (1), characterized in that: The top of the cutting nozzle body (1) is fixedly connected with an end pin (3), an oxygen channel (4) is provided through the center of the end pin (3), an oxygen nozzle (10) is provided at the bottom of the oxygen channel (4), a gas channel (5) is provided outside the oxygen channel (4), an annular channel (8) is provided at the bottom of the gas channel (5), a gas nozzle (9) is provided at the bottom of the annular channel (8), an upper thread (11) is provided below the end pin (3), and a lower thread (12) is provided below the upper thread (11).

2. The cutting nozzle with anti-impact function according to claim 1, characterized in that: A protective sleeve (2) is sleeved on the outside of the cutting nozzle body (1), a bottom protective ring (14) is fixedly connected to the bottom of the protective sleeve (2), and the bottom end of the bottom protective ring (14) extends out of the bottom end of the cutting nozzle body (1).

3. The cutting nozzle with anti-impact function according to claim 1, characterized in that: The cutting nozzle body (1) and the protective sleeve (2) are generally made of brass or copper.

4. The cutting nozzle with anti-impact function according to claim 1, characterized in that: The gas channels (5) and the annular channels (8) are provided at four locations in total, and a decompression chamber (7) is provided above the annular channel (8).

5. The cutting nozzle with anti-impact function according to claim 1, characterized in that: A sealing ring (6) is provided at the top of the gas channel (5).

6. The cutting nozzle with anti-impact function according to claim 1, characterized in that: The cutting nozzle body (1) is fixedly connected with a hexagonal platform (13) near the outer side of the bottom.

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