CN215570451U

CN215570451U - Tempering-resistant injection-suction type cutting torch

Info

Publication number: CN215570451U
Application number: CN202121238450.6U
Authority: CN
Inventors: 陈磊
Original assignee: Ningbo Hanlun Tools Co ltd
Current assignee: Ningbo Hanlun Tools Co ltd
Priority date: 2021-06-03
Filing date: 2021-06-03
Publication date: 2022-01-18
Anticipated expiration: 2031-06-03

Abstract

The utility model provides an anti-backfire injection-suction type cutting torch, which belongs to the technical field of metal cutting tools and comprises the following components: the cutting torch main body comprises an air inlet channel and an air outlet channel, wherein the air outlet end of the air inlet channel is connected with the air inlet end of the air outlet channel, the air inlet channel comprises a first air inlet channel and a second air inlet channel, the air outlet channel comprises a first air outlet channel, a second air outlet channel and a third air outlet channel, the first air inlet channel is respectively connected with the first air outlet channel and the second air outlet channel, and the second air inlet channel is connected with the third air outlet channel. According to the anti-backfire injection-suction type cutting torch, the three gas outlet pipelines are directly connected with the gas inlet pipeline, so that high-pressure gas in the gas inlet pipeline can directly enter the gas outlet pipelines, when a backfire phenomenon occurs, because the impulsive force of the gas inlet is far greater than that of backfire power, backfire flame can be prevented from entering the gas outlet pipelines, and the anti-backfire performance of the cutting torch is greatly improved.

Description

Tempering-resistant injection-suction type cutting torch

Technical Field

The utility model belongs to the technical field of metal cutting tools, and relates to an anti-backfire injection-suction type cutting torch.

Background

The cutting torch is used for mixing oxygen and acetylene in proportion to form preheating flame, and spraying high-pressure pure oxygen onto a cut workpiece to burn cut metal in oxygen jet flow, and the oxygen jet flow blows away slag (oxide) generated by burning to form a cutting slit. Most of the existing jet-suction welding and cutting torches are composed of a cutting torch front part, a cutting torch middle part, a cutting torch rear part and related components, parts are welded through a gas pipe, and the cutting torch is free of a tempering resistance device, generally adopts a structure of long-distance transmission after oxygen and gas are mixed, generally cuts and shuts fire, and easily enables sparks to enter an oxygen bottle or an acetylene bottle through a pipeline so as to cause explosion of the gas bottle due to the fact that no protective measures are taken, and further causes injury of personnel, and the cutting torch has the defects of easiness in tempering and low safety.

In summary, in order to overcome the structural deficiencies of the existing cutting torch, it is necessary to design a backfire-resistant injection-suction type cutting torch.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems in the prior art and provides a jet-suction type cutting torch which is high in gas pressure, good in tempering resistance and light and convenient to use.

The purpose of the utility model can be realized by the following technical scheme: a temper resistant jet-suction torch comprising:

the cutting torch main body comprises an air inlet channel and an air outlet channel, wherein the air outlet end of the air inlet channel is connected with the air inlet end of the air outlet channel, the air inlet channel comprises a first air inlet channel and a second air inlet channel, the air outlet channel comprises a first air outlet channel, a second air outlet channel and a third air outlet channel, the first air inlet channel is respectively connected with the first air outlet channel and the second air outlet channel, and the second air inlet channel is connected with the third air outlet channel.

In the above-mentioned tempering-resistant injection-type cutting torch, the cutting torch body includes a plurality of gas outlet pipes, which are respectively a cutting oxygen pipe, a preheating oxygen pipe and a gas pipe, wherein the first gas outlet channel is located in the cutting oxygen pipe, the second gas outlet channel is located in the preheating oxygen pipe, and the third gas outlet channel is located in the gas pipe.

In the above-mentioned tempering-resistant injection-type cutting torch, the cutting torch body includes an air intake duct, which is an oxygen intake duct and a gas intake duct, respectively, wherein the first air intake channel is located in the oxygen intake duct, and the second air intake channel is located in the gas intake duct.

In the anti-backfire injection-suction type cutting torch, one end of the gas outlet pipeline, which is close to the gas inlet pipeline, is sleeved with the handle, and one side of the handle is provided with the cutting oxygen valve communicated with the cutting oxygen pipe.

In the above anti-backfire injection-suction type cutting torch, the oxygen inlet pipe and the gas inlet pipe are respectively connected with an oxygen valve and a gas valve.

In the above-mentioned tempering-resistant injection-type cutting torch, the cutting torch main body includes a cutting torch front portion, the cutting torch front portion is provided with a plurality of interfaces communicated with the gas outlet pipe, including a cutting oxygen port, a preheating oxygen port and a gas port, respectively, wherein the cutting oxygen port is communicated with the cutting oxygen pipe, the preheating oxygen port is communicated with the preheating oxygen pipe, and the gas port is communicated with the gas pipe.

In the above-mentioned tempering-resistant injection-type cutting torch, the front part of the cutting torch comprises a mixing channel for mixing gas, and the mixing channel is respectively communicated with the preheating oxygen port and the gas port.

In the anti-backfire injection-suction type cutting torch, the cutting nozzle is arranged at the front part of the cutting torch and is respectively communicated with the cutting oxygen port and the preheating oxygen port.

In the above-mentioned tempering-resistant injection-type cutting torch, the handle is streamlined.

Compared with the prior art, the utility model has the beneficial effects that:

(1) according to the anti-backfire injection-suction type cutting torch, the three gas outlet pipelines are directly connected with the gas inlet pipeline, so that high-pressure gas in the gas inlet pipeline can directly enter the gas outlet pipelines, and when a backfire phenomenon occurs, because the impulsive force of the gas inlet is far greater than that of backfire power, backfire flame can be prevented from entering the gas outlet pipelines, and the anti-backfire performance of the cutting torch is greatly improved.

(2) The gas is divided into three paths of circulation through the gas outlet end of the gas inlet pipeline, so that the gas pressure in the gas outlet pipeline is greatly improved, the combustion efficiency of the gas is improved, and the low combustion efficiency caused by insufficient gas inlet pressure when high-power gas is used is avoided.

(3) The mixing channel is arranged at the front part of the cutting torch, so that oxygen and gas are mixed at the front part of the cutting torch, and the spark can be decomposed through the mixing channel when the tempering phenomenon occurs, and the tempering resistance is further improved.

Drawings

FIG. 1 is a schematic diagram of an embodiment of a flashback resistant jet-suction torch of the present invention.

Figure 2 is a cross-sectional view of an anti-flashback, jet-suction torch of the present invention.

Figure 3 is a cross-sectional view of the front of a torch of an anti-flashback, jet-type torch of the present invention.

FIG. 4 is a schematic diagram of another embodiment of a flashback resistant jet-type torch of the present invention.

In the figure, 100, a torch body; 110. an air intake duct; 111. an oxygen inlet pipe; 112. a gas inlet pipe; 120. an air outlet pipe; 121. cutting an oxygen tube; 122. preheating an oxygen pipe; 123. a gas pipe; 130. cutting an oxygen valve; 140. an oxygen valve; 150. a gas valve; 200. a handle; 300. the front part of the cutting torch; 310. cutting an oxygen port; 320. preheating an oxygen port; 330. a gas port; 340. a mixing channel; 400. a cutting nozzle.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

As shown in fig. 1 to 4, the present invention provides a temper resistant jet-suction type cutting torch, including: the cutting torch body 100 comprises an air inlet channel and an air outlet channel, wherein the air outlet end of the air inlet channel is connected with the air inlet end of the air outlet channel, the air inlet channel comprises a first air inlet channel and a second air inlet channel, the air outlet channel comprises a first air outlet channel, a second air outlet channel and a third air outlet channel, the first air inlet channel is respectively connected with the first air outlet channel and the second air outlet channel, and the second air inlet channel is connected with the third air outlet channel.

According to the anti-backfire injection-suction type cutting torch, the gas outlet channel is directly connected with the gas inlet channel, so that high-pressure gas in the gas inlet channel can directly enter the gas outlet channel, when a person does not operate properly and backfire occurs, because the impulsive force of the gas inlet is far greater than that of backfire power, backfire flame can be prevented from entering the gas outlet channel strongly, and the anti-backfire performance of the cutting torch is greatly improved.

Preferably, as shown in fig. 1 to 4, the cutting torch body 100 includes a plurality of gas outlet pipes 120, respectively a cutting oxygen pipe 121, a preheating oxygen pipe 122 and a gas pipe 123, wherein the first gas outlet channel is located in the cutting oxygen pipe 121, the second gas outlet channel is located in the preheating oxygen pipe 122, and the third gas outlet channel is located in the gas pipe 123.

Further preferably, the cutting torch body 100 comprises a gas inlet pipe 110, which is an oxygen inlet pipe 111 and a gas inlet pipe 112, respectively, wherein the first gas inlet channel is located in the oxygen inlet pipe 111, and the second gas inlet channel is located in the gas inlet pipe 112.

In this embodiment, cutting oxygen pipe 121 and preheating oxygen pipe 122 are connected respectively to oxygen intake pipe 111, and gas pipe 123 is connected to gas intake pipe 112, when gaseous entering cutting torch through inlet channel 110, flow through each pipeline respectively immediately, mutual noninterference, the gaseous pressure of admitting air has been remain to the at utmost for gas can the intensive mixing, combustion efficiency has been promoted greatly, and simultaneously, can guarantee gas pressure when high-power operation, avoid influencing work efficiency because of the gas pressure is insufficient.

Preferably, as shown in fig. 1 to 4, a handle 200 is sleeved on one end of the outlet pipe 120 close to the inlet pipe 110, and a cutting oxygen valve 130 communicated with the cutting oxygen pipe 121 is disposed on one side of the handle 200.

Further preferably, the handle 200 is streamlined.

In this embodiment, handle 200 has been cup jointed on the pipeline of giving vent to anger 120, and be provided with cutting oxygen valve 130 in one side of handle 200, cutting oxygen valve 130 is used for the control to cut the flow of oxygen, when actual operation, the staff need open or close cutting oxygen valve 130 according to work needs, can make things convenient for the staff operation with cutting oxygen valve 130 setting in one side of handle 200, and set up the convenient operating personnel gripping of streamline type, accord with the ergonomic design, the operating efficiency has been promoted.

Preferably, as shown in fig. 1 to 4, an oxygen valve 140 and a gas valve 150 are respectively connected to the oxygen inlet pipe 111 and the gas inlet pipe 112.

In this embodiment, the oxygen valve 140 and the gas valve 150 are respectively used to control the flow of oxygen and gas, so that the gas flow can be adjusted at any time according to actual requirements, and the control is convenient.

Preferably, as shown in fig. 1 to 4, the cutting torch body 100 includes a cutting torch front 300, the cutting torch front 300 is provided with a plurality of interfaces, namely a cutting oxygen port 310, a preheating oxygen port 320 and a gas port 330, which are communicated with the gas outlet 120, wherein the cutting oxygen port 310 is communicated with the cutting oxygen pipe 121, the preheating oxygen port 320 is communicated with the preheating oxygen pipe 122, and the gas port 330 is communicated with the gas pipe 123.

Further preferably, the torch front 300 includes a mixing channel 340 for mixing gases, and the mixing channel 340 communicates with the pre-heating oxygen port 320 and the gas port 330, respectively.

In this embodiment, the cutting torch front portion 300 is provided with the mixing channel 340 for mixing the preheating oxygen with the gas, set up the mixing channel 340 in the cutting torch front portion 300, make gas mix before reaching the cutting torch 400, when the misoperation arouses the tempering, the mixing channel 340 can decompose the spark, avoids the spark to get into gas outlet pipe 120, has further promoted anti-tempering performance.

Preferably, as shown in fig. 1 to 4, the cutting torch front 300 is mounted with a cutting tip 400, and the cutting tip 400 is respectively communicated with the cutting oxygen port 310 and the preheating oxygen port 320.

In this embodiment, the cutting torch 400 is connected to the preheating oxygen port 320, the preheating oxygen port 320 transmits the mixed gas to the cutting torch 400, the flame is sprayed through the cutting torch 400 to heat the workpiece to be cut, and the cutting oxygen is provided to the cutting torch 400 through the cutting oxygen pipe 121 to cut the workpiece.

It should be noted that the descriptions related to "first", "second", "a", etc. in the present invention are only used for descriptive purposes and are not to be construed as indicating or implying relative importance or implicit indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. The terms "connected," "fixed," and the like are to be construed broadly, e.g., "fixed" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. An anti-flashback, jet-suction torch comprising:

2. The torch of claim 1 wherein the torch body comprises a plurality of gas outlet channels, respectively a cutting oxygen pipe, a preheating oxygen pipe and a gas pipe, wherein the first gas outlet channel is located in the cutting oxygen pipe, the second gas outlet channel is located in the preheating oxygen pipe, and the third gas outlet channel is located in the gas pipe.

3. The torch of claim 2 wherein the torch body comprises gas feed conduits, respectively an oxygen gas feed conduit and a gas feed conduit, wherein the first gas feed channel is located within the oxygen gas feed conduit and the second gas feed channel is located within the gas feed conduit.

4. The anti-backfire injection-suction type cutting torch as claimed in claim 3, wherein a handle is sleeved on one end of the gas outlet pipe close to the gas inlet pipe, and a cutting oxygen valve communicated with the cutting oxygen pipe is arranged on one side of the handle.

5. The anti-flashback, injection-type cutting torch according to claim 3, wherein an oxygen valve and a gas valve are connected to the oxygen inlet pipe and the gas inlet pipe, respectively.

6. The anti-backfire injection-type cutting torch according to claim 2, wherein the cutting torch body comprises a cutting torch front part, the cutting torch front part is provided with a plurality of interfaces communicated with the gas outlet pipeline, namely a cutting oxygen port, a preheating oxygen port and a gas port, wherein the cutting oxygen port is communicated with the cutting oxygen pipeline, the preheating oxygen port is communicated with the preheating oxygen pipeline, and the gas port is communicated with the gas pipeline.

7. The torch of claim 6 wherein the torch front includes a mixing channel for mixing gases and the mixing channel communicates with the preheat oxygen port and the gas port, respectively.

8. The torch of claim 6 wherein a cutting tip is mounted to the front of the torch and is in communication with the cutting oxygen port and the preheating oxygen port, respectively.

9. The torch of claim 4 wherein the handle is streamlined.