CN102759104A - Non-flameout efficient anti-backfire cutting torch - Google Patents
Non-flameout efficient anti-backfire cutting torch Download PDFInfo
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- CN102759104A CN102759104A CN2012102290974A CN201210229097A CN102759104A CN 102759104 A CN102759104 A CN 102759104A CN 2012102290974 A CN2012102290974 A CN 2012102290974A CN 201210229097 A CN201210229097 A CN 201210229097A CN 102759104 A CN102759104 A CN 102759104A
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Abstract
The invention discloses a non-flameout efficient anti-backfire cutting torch which comprises a rear connecting body, a gas-guide tube, a middle main body, a cutting oxygen tube, a mixed gas tube and a cutting nozzle, wherein the gas-guide tube is externally provided with a handle, the rear connecting body is connected with the middle main body through the gas-guide tube, the cutting oxygen tube and the mixed gas tube are respectively connected between the middle main body and a joint of the cutting nozzle, and an anti-backfire device is connected between the mixed gas tube and the joint of the cutting nozzle; and the anti-backfire device is a helical line assembly and comprises a helical seat and a helical bar, the helical bar is clamped in the helical seat, and one end of the helical bar is fixedly connected with the helical seat. According to the invention, the anti-backfire device is arranged between the joint of the cutting nozzle and the mixed gas tube, so that the backfire is effectively prevented; meanwhile, due to the helical bar, the preheating flame of the cutting nozzle is more stable and concentrated, therefore, the preheating speed and the cutting speed are improved, the application of the cutting torch is safe, and the backfire explosion accidents caused by various reasons are effectively avoided.
Description
Technical field
The present invention relates to the welding and cutting device field, particularly a kind of not flame-out efficient anti-backfire cutting torch.
Background technology
In the welding and cutting device field, cutting torch is very important a kind of lancing equipment, and gas torch in use; If operative employee's misoperation; Or during the poor quality of cutting torch own, be easy to generate tempering, the security incident that causes cutting torch or gas cylinder/source of the gas to be blasted.
Therefore need on cutting torch, increase fireproof tempering device, the fireproof tempering device that uses in the market has two kinds, dry flashback arrestor and water-sealing back fire arrester, and these two kinds of fireproof tempering devices all are arranged in the tracheae of handle portion downstream.Although this device causes gas bottle explosion in the time of can preventing tempering, can not effectively prevent the blast of cutting torch itself.When the tempering accident takes place, can't prevent the blast of cutting torch to handle portion, and have imflammable gas in the tracheae of cutting torch to handle portion that the burning that tempering causes still can cause the generation of exploding and the operator is come to harm.
And the uniformity that different fuel gas mix in the existing cutting torch is bad, and the temperature that is directed at preheat flame does not concentrate temperature not high, thereby under identical gas pressure and flow, is difficult to improve cutting speed, causes cost height, the efficient of cutting work low.
Summary of the invention
In order to overcome the defective that above-mentioned prior art exists, the present invention provides a kind of not flame-out efficient anti-backfire cutting torch, has improved the gas mixture homogeneity, prevents that effectively tempering is with flame-out.
To achieve these goals, technical scheme of the present invention is following:
A kind of not flame-out efficient anti-backfire cutting torch; The wireway, mid-section body, cutting oxygen pipe, mixture pipe and the cutting torch that comprise rear portion junctor, outer setting handle; The rear portion junctor is connected with mid-section body through wireway; Connect cutting oxygen pipe and mixture pipe between mid-section body and the cutting head joint respectively, be connected with fireproof tempering device between said mixture pipe and the cutting head joint; Said fireproof tempering device is the helix assembly, comprises spiral base and spiral bar, and said spiral bar cutting ferrule is in said spiral base, and spiral bar one end and spiral base are connected.
As preferably, cutting torch according to the invention also comprises valve rod, and said valve rod comprises valve rod main body and end socket, and valve rod main body and end socket are for being fixedly connected, and valve rod one end connects handwheel, and the other end is connected with mid-section body through end socket, the formation air circuit breaker.
As preferably, between said mixture pipe and the mid-section body injecting tube is set, said injecting tube outer setting overcoat, injecting tube one end is connected with mixture pipe silver soldering, and the other end is fixedly connected with mid-section body through nut.
As preferably, fireproof tempering device according to the invention is connected with the silver soldering that is connected to of mixture pipe and cutting head joint.
As preferably, spiral bar according to the invention is that torsional mode is wiped rope shape spiral bar.
As preferably, spiral bar according to the invention is more than one.
As preferably, the parameter of spiral bar according to the invention is: helical pitch is 4～12mm, and external diameter is 3～8mm, and thickness is 0.5～1.5mm.
As preferably, end socket according to the invention is the stainless steel end socket.
The invention has the beneficial effects as follows; Fireproof tempering device is arranged between cutting head joint and the mixture pipe, prevents that effectively tempering from taking place, simultaneously; Spiral bar makes the preheat flame of cutting torch stable more, concentrated; Improved preheating speed and cutting speed, safe in utilization, the back draft accident of avoiding a variety of causes to cause effectively.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a helix modular construction sketch map of the present invention;
Fig. 3 is the structural representation of spiral bar of the present invention;
Fig. 4 is the side-looking structure chart of spiral bar of the present invention;
Fig. 5 is the cross section structure figure of three spiral bar;
Fig. 6 is the cross section structure figure of four spiral bar.
Among the figure, 1, cutting torch, 2, nut, 3, cutting head joint, 4, the helix assembly, 5, mixture pipe, 6, overcoat; 7, injecting tube, 8, nut, 9, mid-section body, 10, handle, 11, wireway, 12, the rear portion junctor, 13, nut; 14, hose coupling, 15, nut, 16, handwheel, 17, the valve rod main body, 18, nut, 19, end socket, 20, nut; 21, cutting oxygen pipe, 22, spiral base, 23, spiral bar, h, helical pitch, l, external diameter, t, thickness.
The specific embodiment:
Be easy to understand understanding in order to make creation characteristic of the present invention, technological means and to reach purpose, further set forth the present invention below in conjunction with specific embodiment.
Referring to Fig. 1 and Fig. 2, a kind of flame-out efficient anti-backfire cutting torch comprises wireway 11, mid-section body 9, cutting oxygen pipe 21, mixture pipe 5, cutting torch 1 and the valve rod of rear portion junctor 12, outer setting handle 10; Cutting torch 1 is connected through nut 2 and cutting head joint 3, and rear portion junctor 12 is connected with mid-section body 9 through wireway 11, connects cutting oxygen pipe 21 and mixture pipe 5 between mid-section body 9 and the cutting head joint 3 respectively; Be connected with fireproof tempering device between said mixture pipe 5 and the cutting head joint 3, said fireproof tempering device is a helix assembly 4, comprises spiral base 22 and spiral bar 23; Said spiral bar 23 cutting ferrules are in said spiral base 22; Spiral bar 23 1 ends and spiral base 22 are connected, and when fuel gas flows in spiral bar 23, are easy to realize mixing; Helical flow has increased flow velocity.Valve rod comprises valve rod main body 17 and end socket 19; Valve rod main body 17 and end socket 19 are for being fixedly connected; Valve rod one end connects handwheel 16, and the other end is connected with mid-section body 9 through stainless steel end socket 19, forms air circuit breaker; Nut 18 realizes that valve rod and mid-section body 9 are connected, and cutting oxygen pipe 21 is realized being connected with mid-section body 9 through nut 20.
Fireproof tempering device is connected with the silver soldering that is connected to of mixture pipe 5 and cutting head joint 3.Between mixture pipe 5 and the mid-section body 9 injecting tube 7 is set; Said injecting tube 7 outer setting overcoats 6, injecting tube 7 one ends are connected with mixture pipe 5 silver soldering, and the other end is fixedly connected with mid-section body 9 through nut 8; Spiral bar 23 is wiped rope shape spiral bar for torsional mode, and spiral bar 23 is more than one.Referring to Fig. 5, be the cross section structure figure of three spiral bar, referring to Fig. 6, be the cross section structure figure of four spiral bar, like the parameter of Fig. 3 and spiral bar shown in Figure 4 23 be: helical pitch h is 4～12mm, and external diameter 1 is 3～8mm, and thickness t is 0.5～1.5mm.
More than show and described basic principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the specification just explains principle of the present invention; The present invention also has various changes and modifications under the prerequisite that does not break away from spirit and scope of the invention, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection domain to be defined by appending claims and equivalent thereof.
Claims (10)
1. flame-out efficient anti-backfire cutting torch; The wireway, mid-section body, cutting oxygen pipe, mixture pipe and the cutting torch that comprise rear portion junctor, outer setting handle; The rear portion junctor is connected with mid-section body through wireway; Connect cutting oxygen pipe and mixture pipe between mid-section body and the cutting head joint respectively, it is characterized in that, be connected with fireproof tempering device between said mixture pipe and the cutting head joint; Said fireproof tempering device is the helix assembly, comprises spiral base and spiral bar, and said spiral bar cutting ferrule is in said spiral base, and spiral bar one end and spiral base are connected.
2. cutting torch according to claim 1 is characterized in that said cutting torch also comprises valve rod, and said valve rod comprises valve rod main body and end socket, and the valve rod main body is fixedly connected with end socket, and valve rod one end connects handwheel, and the other end is connected with mid-section body through end socket.
3. cutting torch according to claim 1; It is characterized in that, between said mixture pipe and the mid-section body injecting tube is set, said injecting tube outer setting overcoat; Injecting tube one end is connected with mixture pipe silver soldering, and the other end is fixedly connected with mid-section body through nut.
4. cutting torch according to claim 1 is characterized in that, said fireproof tempering device is connected with the silver soldering that is connected to of mixture pipe and cutting head joint.
5. cutting torch according to claim 1 is characterized in that, said spiral bar is that torsional mode is wiped rope shape spiral bar.
6. according to claim 1 or 5 described cutting torches, it is characterized in that said spiral bar is more than one.
7. according to claim 1 or 5 described devices, it is characterized in that the helical pitch of said spiral bar is 4～12mm.
8. according to claim 1 or 5 described devices, it is characterized in that the external diameter of said spiral bar is 3～8mm.
9. according to claim 1 or 5 described devices, it is characterized in that the thickness of said spiral bar is 0.5～1.5mm.
10. cutting torch according to claim 2 is characterized in that, said end socket is the stainless steel end socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102290974A CN102759104A (en) | 2012-07-04 | 2012-07-04 | Non-flameout efficient anti-backfire cutting torch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102290974A CN102759104A (en) | 2012-07-04 | 2012-07-04 | Non-flameout efficient anti-backfire cutting torch |
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| Publication Number | Publication Date |
|---|---|
| CN102759104A true CN102759104A (en) | 2012-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012102290974A Pending CN102759104A (en) | 2012-07-04 | 2012-07-04 | Non-flameout efficient anti-backfire cutting torch |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047650A (en) * | 2012-12-25 | 2013-04-17 | 宁波隆兴焊割科技股份有限公司 | Novel anti-backfire cutting and welding torch |
| CN103062772A (en) * | 2012-12-27 | 2013-04-24 | 宁波市江北兴达焊割减压仪表厂 | Magnetic anti-flashback cutting torch |
| CN103090389A (en) * | 2012-12-27 | 2013-05-08 | 宁波市江北兴达焊割减压仪表厂 | Sliding type tempering-prevention cutting torch |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4509689A (en) * | 1982-10-01 | 1985-04-09 | Kuo Chuan Ming | Cutting torch |
| US5407348A (en) * | 1993-02-10 | 1995-04-18 | Victor Equipment Company | Torch with integral flashback arrestors and check valves |
| CN2896035Y (en) * | 2006-03-22 | 2007-05-02 | 宁波隆兴焊割科技股份有限公司 | Anti-burst tempering-proof cutting torch |
| CN201568973U (en) * | 2009-12-01 | 2010-09-01 | 宁波隆兴焊割科技股份有限公司 | Natural gas welding torch |
| CN201925580U (en) * | 2010-12-31 | 2011-08-10 | 宁波隆兴焊割科技股份有限公司 | Valve rod used on welding and cutting torch |
| CN201944855U (en) * | 2010-12-31 | 2011-08-24 | 宁波隆兴焊割科技股份有限公司 | Fire arresting mixing pipe for cutting torch |
| TW201141652A (en) * | 2010-05-21 | 2011-12-01 | Koike Sanso Kogyo Kk | Gas torch for cutting |
| CN202692054U (en) * | 2012-07-04 | 2013-01-23 | 宁波隆兴焊割科技股份有限公司 | Flameout-free efficient temper-resistant cutting torch |
-
2012
- 2012-07-04 CN CN2012102290974A patent/CN102759104A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4509689A (en) * | 1982-10-01 | 1985-04-09 | Kuo Chuan Ming | Cutting torch |
| US5407348A (en) * | 1993-02-10 | 1995-04-18 | Victor Equipment Company | Torch with integral flashback arrestors and check valves |
| CN2896035Y (en) * | 2006-03-22 | 2007-05-02 | 宁波隆兴焊割科技股份有限公司 | Anti-burst tempering-proof cutting torch |
| CN201568973U (en) * | 2009-12-01 | 2010-09-01 | 宁波隆兴焊割科技股份有限公司 | Natural gas welding torch |
| TW201141652A (en) * | 2010-05-21 | 2011-12-01 | Koike Sanso Kogyo Kk | Gas torch for cutting |
| CN201925580U (en) * | 2010-12-31 | 2011-08-10 | 宁波隆兴焊割科技股份有限公司 | Valve rod used on welding and cutting torch |
| CN201944855U (en) * | 2010-12-31 | 2011-08-24 | 宁波隆兴焊割科技股份有限公司 | Fire arresting mixing pipe for cutting torch |
| CN202692054U (en) * | 2012-07-04 | 2013-01-23 | 宁波隆兴焊割科技股份有限公司 | Flameout-free efficient temper-resistant cutting torch |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047650A (en) * | 2012-12-25 | 2013-04-17 | 宁波隆兴焊割科技股份有限公司 | Novel anti-backfire cutting and welding torch |
| CN103047650B (en) * | 2012-12-25 | 2015-01-07 | 宁波隆兴焊割科技股份有限公司 | Novel anti-backfire cutting and welding torch |
| CN103062772A (en) * | 2012-12-27 | 2013-04-24 | 宁波市江北兴达焊割减压仪表厂 | Magnetic anti-flashback cutting torch |
| CN103090389A (en) * | 2012-12-27 | 2013-05-08 | 宁波市江北兴达焊割减压仪表厂 | Sliding type tempering-prevention cutting torch |
| CN103090389B (en) * | 2012-12-27 | 2015-06-10 | 宁波市江北兴达焊割减压仪表厂 | Sliding type tempering-prevention cutting torch |
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Application publication date: 20121031 |