CN207746519U - A kind of cutting torch control valve and automatic cutting cutting torch - Google Patents

Abstract

The utility model is related to a kind of cutting torch control valve, including valve body and valve rod, valve body is equipped with valve hole, and the valve rod rotatably passes through the valve hole；The valve body is equipped with valve body oxygen intake and the first body fuel channel, the valve body oxygen intake is connected to the entrance in the first valve body hyperbaric oxygen channel and the first valve body preheating oxygen channel, it is additionally provided with two valve body hyperbaric oxygen channels, the second valve body preheating oxygen channel, the second body fuel channel and valve body mixing oxygen channel, the pellet component of its opening and closing of control is installed in the first valve body hyperbaric oxygen channel, the first valve body preheating oxygen channel and the first body fuel channel；It includes above-mentioned control valve and cutter unit to further relate to a kind of automatic cutting cutting torch, and the cutter unit is connect with the control valve by high-pressure oxygen tube and mixing oxygen pipe, and the high-pressure oxygen tube and the mixing oxygen pipe are hose；The control valve can realize three closing, igniting and welding one valve of function controls.

Description

A kind of cutting torch control valve and automatic cutting cutting torch

Technical field

The utility model is related to a kind of cutting torch control valve and automatic cutting cutting torches.

Background technology

The gaseous fuels such as the widely used acetylene of flame welding, propane, natural gas, the typically no atomization of gas welding cutting torch are made With, since the flow velocity of gas is very fast, when the mixing with oxygen is not enough, arrived cutting torch and burn, burning not enough fill Point, energy consumption is big, of high cost.

In comparison, the liquid fuels such as gasoline, diesel oil, methanol are used for flame, and oxygen demand is small, fuel cost is low, safety Property it is more preferable, overall cost save 30-80% or more, be the developing direction of flame welding.

Currently, well known gas or liquid fuel welding torch, are by oxygen, fuel (gas or liquid), gaseous mixture three The operation mode of a channel adjusting knob lacks a kind of control valve that a key operation may be implemented.

During well known gas or liquid fuel welding torch use, need to rely on operating experience progress adjustment three repeatedly Channel adjusting knob cannot achieve the operation that standardization and automation, especially liquid fuel within substitute gaseous fuel welding torch In, adjusting difficulty is bigger, greatly limits promoting the use of for the energy saving welding torch of liquid fuel, also can not meet automation welding Equipment uses the requirement of liquid fuel.

In addition, well known liquid fuel welding torch, is that directly liquid fuel is sucked out by injecting tube, with preheating oxygen and height Pressure wind is sent to the burning of welding mouth by pipette tips together, and pipette tips continue to use gaseous fuel cutting torch pipette tips, and mixing oxygen oxygen channel is mostly single Hole or diplopore, and positioned at side is held, without atomizing functions.On the one hand, fuel is in a large amount of liquid flowing states, and burning is not filled very much Point, waste is very big；On the other hand, combustion process is unstable, and fire is altered in tempering and burning is serious partially, and both dangerous, cutting torch is also easily burnt It ruins；The long-term Developing Extension and industrial applications for restricting liquid fuel welding torch.

Some technical solutions have installed metal atomization device and/or the asbestos atomization of woven wire additional in the oil outlet end of petroleum pipeline Device, although can play the role of atomized liquid fuel, the device of these filtering classes, material, which is all that filament fiber class is agglomerating, to be made With there are problems that airflow scouring screen warpage and easily block, state labile, can not run steadily in the long term in fact at all.

Utility model content

The utility model in view of the deficiency of the prior art, provides a kind of cutting torch control that a key operation may be implemented Valve processed.

The technical solution that the utility model solves above-mentioned technical problem is as follows：A kind of cutting torch control valve, including valve body and valve Bar, the valve body are equipped with valve hole, and the valve rod rotatably passes through the valve hole；The valve body is equipped with valve body Oxygen intake, the first valve body hyperbaric oxygen channel, the first valve body preheating oxygen channel and the first body fuel channel, the valve body oxygen Entrance is connected to the entrance in the first valve body hyperbaric oxygen channel and the first valve body preheating oxygen channel；

The second valve body hyperbaric oxygen channel is additionally provided on the valve body, the second valve body preheats oxygen channel, the second body fuel is logical Road and valve body mixing oxygen channel, the second valve body preheating oxygen channel, the second body fuel channel described in the second valve body hyperbaric oxygen channel Outlet end be connected with the valve body mixing oxygen channel；

The first valve body hyperbaric oxygen channel, first valve body preheating oxygen channel, the first body fuel channel are rank Terraced hole, the stepped hole include external macropore and internal aperture；

The first valve body hyperbaric oxygen channel, first valve body preheating oxygen channel are pacified in the first body fuel channel Equipped with pellet component, the pellet component includes pellet and resetting spring, and the pellet includes marble head and the outside of inside Pellet protrusion is equipped with annular groove, the diameter of the marble head and the aperture between the marble head and the pellet protrusion Diameter be adapted, the internal diameter of the annular groove is less than the diameter of the aperture, described in the diameter of the pellet protrusion is more than The diameter of aperture, and no more than the diameter of macropore；The resetting spring is mounted on the outside of pellet protrusion, and one end holds out against institute State pellet protrusion；

The second valve body hyperbaric oxygen channel, the second valve body preheating oxygen channel, the second body fuel channel are respectively with first Valve body hyperbaric oxygen channel, first valve body preheating oxygen channel, the first body fuel channel are connected to by the annular groove；

The valve rod profile is cylinder, and oxygen is preheated with the first valve body hyperbaric oxygen channel, the first valve body on valve rod Channel and the first body fuel channel opposite position are equipped with through-flow platform successively, and the through-flow platform is logical including hyperbaric oxygen successively Levelling platform preheats the through-flow platform of oxygen and the through-flow platform of fuel；

The hyperbaric oxygen is through-flow platform, preheating oxygen is through-flow platform and the through-flow platform of fuel are set along the valve rod axis direction There is chamfering.

Control valve has the beneficial effect that in the utility model：Two channels become triple channel, and (oxygen is after oxygen intake entrance Be divided into hyperbaric oxygen channel and preheating oxygen channel), on valve rod the design of through-flow platform can control the opening and closing of triple channel, later, three The channel channels Bian Liang (preheating channel and fuel channel are combined into one, and are denoted as mixing oxygen channel), by this control valve for liquid or When gaseous fuel flame welding cutting torch, opening for hyperbaric oxygen, preheating oxygen and fuel can be controlled by rotary valve rod to different positions It closes, and then realizes a key operation of cutting torch.

Further, the through-flow platform of the hyperbaric oxygen, the preheating through-flow platform of oxygen are consistent with the chamfering of the through-flow platform of fuel.

Advantageous effect using above-mentioned further technical solution is：Hyperbaric oxygen, preheating oxygen and fuel open and close simultaneously, It can be used for the use of gaseous fuel.

Further, the fuel is through-flow in one's power more than the through-flow platform of the preheating oxygen for the chamfering of the through-flow platform of the hyperbaric oxygen The chamfering of platform, the chamfering that the preheating through-flow platform of oxygen states the through-flow platform of fuel in one's power are consistent.

Advantageous effect using above-mentioned further technical solution is：When cutting torch for liquid fuel, stem structure can To control the opening and closing sequence of hyperbaric oxygen, preheating oxygen and fuel, fuel channel and preheating oxygen channel are first opened, and can realize igniting Function, hyperbaric oxygen are opened behind channel, can realize the function of cutting.

Further, the arrival end in the first valve body hyperbaric oxygen channel, the first body fuel feeder connection end respectively with institute Outlet end, the outlet end in valve body mixing oxygen channel for stating the second valve body high-pressure channel are axially vertical.

Advantageous effect using above-mentioned further technical solution is：The structure of control valve can be made compacter.

Further, one end of the valve rod is connected with rotating handles, and three for closing, lighting a fire and cutting are equipped on valve body Corner identifies.

Advantageous effect using above-mentioned further technical solution is：The adjusting for facilitating valve rod, when rotating handles are respectively aligned to When closing, light a fire and cutting, it is able to realize closing, igniting and the function of cutting.

Further, second body fuel channel and second valve body preheating oxygen channel are bent passage, wherein Second valve body preheating oxygen channel is right angle bent passage.

Further, the angle between the fillet surface and through-flow flat surface is 140 °.

Further, the fillet surface is arc surface.

Advantageous effect using above-mentioned further technical solution is：Be conducive to the rotation of valve rod, it is not stuck.

The utility model further relates to a kind of automatic cutting cutting torch, including cutter unit and above-mentioned control valve, the cutting Unit is connect with the control valve by high-pressure oxygen tube and mixing oxygen pipe, and the high-pressure oxygen tube and the mixing oxygen pipe are soft Pipe；

The second valve body hyperbaric oxygen channel, valve body mixing oxygen channel respectively by the high-pressure oxygen tube, mixing oxygen pipe with The cutter unit connects, and injecting tube is also equipped in the valve body mixing oxygen channel.

Further, the cutter unit is atomization pipette tips, including connection ontology and pipette tips ontology, the connection ontology and institute The sealed connection of pipette tips ontology is stated, the connection ontology is axial consistent with the pipette tips ontology；

The pipette tips ontology is equipped with the first pipette tips hyperbaric oxygen channel, and the first pipette tips mix oxygen channel, multiple micropores and cut Mouth interface, multiple micropores are distributed using the first pipette tips hyperbaric oxygen channel as axis in a ring, the first pipette tips high pressure Oxygen channel and the cutting torch orifice, the first pipette tips mixing oxygen channel are connected to the input end of each micropore, institute State the outlet end of micropore and the cutting torch orifice；

The connection ontology is equipped with hyperbaric oxygen interface, mixing oxygen interface, the second pipette tips hyperbaric oxygen channel and the second pipette tips Oxygen channel is mixed, the hyperbaric oxygen interface, the second pipette tips hyperbaric oxygen channel and the first pipette tips hyperbaric oxygen channel are sequentially communicated, described Mixing oxygen interface, the second pipette tips mixing oxygen channel and the first pipette tips mixing oxygen channel are sequentially communicated；

First pipette tips mixing oxygen channel is the toroidal cavity being arranged in micropore arrival end, and first pipette tips mix oxygen The axis in channel, the first pipette tips hyperbaric oxygen channel and the cutting torch interface is overlapped with the axis of pipette tips ontology；

First pipette tips mix axial direction of the axial direction in oxygen channel, the first pipette tips hyperbaric oxygen channel with the connection ontology Unanimously.

Advantageous effect using above-mentioned further technical solution is：The cutter unit is mainly used for cutting for automatic cutting Torch, when liquid fuel is to be used, liquid fuel and oxygen form the atomizing effect of turbulent flow stirring by annular spread micropore, can be with Ensure that liquid fuel is fully atomized, improves combustion utilization efficiency, while airflow stability can be substantially improved, general gas flow is avoided to weld It is the tempering set up a separatist regime by force of arms, the problems such as altering fire, burning partially, safe and reliable, energy-efficient, substantially prolong the cutting torch service life；

Being hardly damaged for the rigid structure of the atomizer of the micropore of annular spread, is not easy to plug, and service life is long；

When using a gas fuel, gaseous fuel, can be more uniform with oxygen mix under the action of being atomized pipette tips, Burning can more fully.

Further, the hyperbaric oxygen interface and the oxygen interface that mixes are axially consistent, and the hyperbaric oxygen interface is mixed with described It closes oxygen interface and the connection ontology is axially vertical, the second pipette tips hyperbaric oxygen channel and second pipette tips mixing oxygen are logical equal For bent passage.

Advantageous effect using above-mentioned further technical solution is：The hyperbaric oxygen interface mixes oxygen interface and institute with described It is axially vertical to state connection ontology, facilitates the connection of hose.

Further, the hyperbaric oxygen interface and the oxygen interface that mixes are axially consistent, and the hyperbaric oxygen interface is mixed with described It is axial consistent with the connection ontology to close oxygen interface, the second pipette tips hyperbaric oxygen channel and second pipette tips mixing oxygen are logical It is bent passage.

Further, it is right angle bent passage that the second pipette tips hyperbaric oxygen channel and second pipette tips mixing oxygen, which lead to,.

Advantageous effect using above-mentioned further technical solution is：Right angle bent passage facilitates processing.

Further, mixing oxygen flow regulating valve is installed on the second pipette tips mixing oxygen channel.

Advantageous effect using above-mentioned further technical solution is：When using liquid fuel, to control cutting thickness.

Further, the micropore has 8-12, aperture 0.5-3mm.

Further, the angle between the axis of the micropore and the axis in the first pipette tips hyperbaric oxygen channel is acute angle, And circumference where multiple micropores forms that arrival end is larger, smaller pyramidal in outlet end.

Further, the connection ontology and the pipette tips ontology are all made of copper alloy.

Further, the cutting torch interface is equipped with external screw thread, for connecting cutting torch.

The advantageous effect of the utility model automatic cutting cutting torch is：Closing, point can be realized by the rotation of control valve rod Fire, the key operation cut；Can be a kind of automatic cutting cutting torch of gas liquid two purpose, when using a gas fuel, gaseous fuel , can be more uniform with oxygen mix under the action of being atomized pipette tips, burning more fully can save 50-80%'s Fuel, when a liquid is used, atomizing effect are more preferable, can save prodigious cost.

Description of the drawings

Fig. 1 is the structural schematic diagram of cutting torch embodiment 1 in the utility model；

Fig. 2 is the structural schematic diagram of control valve in the utility model；

Fig. 3 be the utility model in Fig. 2 along D-D to sectional view；

Fig. 4 be the utility model in Fig. 2 along E-E to sectional view (resetting spring is not drawn into)；

Fig. 5 be the utility model in Fig. 2 along F-F to sectional view (resetting spring is not drawn into)；

Fig. 6 be the utility model in Fig. 2 along G-G to sectional view (resetting spring is not drawn into)；

Fig. 7 is the structural schematic diagram of valve rod in the utility model；

Fig. 8 is cutting torch when being closed in the utility model, Fig. 7 along A-A to sectional view；

When Fig. 9 is that cutting torch is closed in the utility model, sectional views of the Fig. 7 along B-B direction；

Figure 10 is cutting torch when being closed in the utility model, Fig. 7 along C-C to sectional view；

Figure 11 is the structural schematic diagram of pellet in the utility model；

Figure 12 is cutting torch when being in fired state in the utility model, Fig. 7 along A-A to sectional view；

When Figure 13 is that cutting torch is in fired state in the utility model, sectional views of the Fig. 7 along B-B direction；

Figure 14 is cutting torch when being in fired state in the utility model, Fig. 7 along C-C to sectional view；

Figure 15 is cutting torch when being in cut state in the utility model, Fig. 7 along A-A to sectional view；

When Figure 16 is that cutting torch is in cut state in the utility model, sectional views of the Fig. 7 along B-B direction；

Figure 17 is cutting torch when being in cut state in the utility model, Fig. 7 along C-C to sectional view

Figure 18 is the structural schematic diagram of the cutter unit in cutting torch embodiment 1 in the utility model；

Figure 19 be Figure 18 along H-H to sectional view；

Figure 20 is the structural schematic diagram of cutting torch embodiment 2 in the utility model；

In the accompanying drawings, the list of designations represented by each label is as follows：1, control valve, 2, high-pressure oxygen tube, 3, mixing oxygen Pipe, 4, cutter unit；

1-1, valve body, 1-2, valve rod, 1-3, rotating handles, 1-4, pellet, 1-5, injecting tube, 1-6, resetting spring；

1-11, the first valve body hyperbaric oxygen channel, 1-12, the first valve body preheating oxygen channel, 1-13, the first body fuel are logical Road, 1-14, the second valve body hyperbaric oxygen channel, 1-15, the second valve body preheating oxygen channel, 1-16, the second body fuel channel, 1- 17, valve body mixing oxygen channel, 1-18, valve body oxygen intake；

1-21, fuel are through-flow platform, 1-22, the preheating through-flow platform of oxygen, 1-23, hyperbaric oxygen are through-flow platform, 1-24, chamfering；

1-41, marble head, 1-42, pellet protrusion, 1-43, annular groove；

4-1, hyperbaric oxygen interface, 4-2, mixing oxygen interface, 4-3, micropore, 4-4, cutting torch interface, 4-5, the mixing of the second pipette tips Oxygen channel, 4-6, the second pipette tips hyperbaric oxygen channel, 4-7, mixing oxygen flow regulating valve, 4-8, the first pipette tips hyperbaric oxygen channel, 4- 9, the second pipette tips mixing oxygen channel.

Specific implementation mode

The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining this practicality It is novel, it is not intended to limit the scope of the utility model.

In Fig. 2-Fig. 6, there are many fabrication holes to be not drawn on valve body 1-2, such as the second body fuel channel 1-16, the second valve It is bent passage that body, which preheats oxygen channel 1-15, includes two sections of channels, and two sections of channels are the axis along its channel in processing Line is punched since the outer wall of valve body, after having beaten hole, is blocked the exit orifice in both ends channel in valve outer wall；Every channel be from Valve outer wall punches, and only has some holes that can open wide, connecting pipe has some holes that must block, and needs the hole blocked, in figure not having It draws.

As seen in figs. 2-10, a kind of cutting torch control valve, including valve body 1-1 and valve rod 1-2, the valve body 1-1 are equipped with Valve hole, the valve rod 1-2 rotatably pass through the valve hole；The valve body 1-1 is equipped with valve body oxygen intake 1- 18 and first body fuel channel 1-3, the valve body oxygen intake 1-18 and the first valve body hyperbaric oxygen channel 1-11 and the first valve Body preheats the entrance connection of oxygen channel 1-12；

The second valve body hyperbaric oxygen channel 1-14, the second valve body preheating oxygen channel 1-15, second are additionally provided on the valve body 1-1 Second valve body described in body fuel channel 1-16 and valve body mixing oxygen channel 1-17, the second valve body hyperbaric oxygen channel 1-14 preheats oxygen Channel 1-15, the second body fuel channel 1-16 outlet end be connected with the valve body mixing oxygen channel 1-17；

The first valve body hyperbaric oxygen channel 1-11, first valve body preheating oxygen channel 1-12, the first body fuel are logical Road 1-13 is stepped hole, and the stepped hole includes external macropore and internal aperture；

The first valve body hyperbaric oxygen channel 1-11, the first valve body preheating oxygen channel 1-12, the first body fuel channel 1- Pellet component is mounted in 13, the pellet component includes pellet 1-4 and resetting spring, and the pellet 1-4 includes internal It is recessed that annular is equipped between marble head 1-41 and external pellet protrusion 1-42, the marble head 1-41 and the pellet protrusion 1-42 Slot 1-43, the diameter of the marble head 1-41 are adapted with the diameter of the aperture, and the internal diameter of the annular groove 1-43 is less than The diameter of the aperture, the diameter of the pellet protrusion 1-42 are more than the diameter of the aperture, and straight no more than the macropore Diameter；The resetting spring 1-6 is mounted on the outside of the pellet protrusion 1-42, and one end holds out against the pellet protrusion 1-42, described The outer end of first valve body hyperbaric oxygen channel 1-11 connects original oxygen hose (being not drawn into figure), the first body fuel channel 1-13's Outer end connects original fuel pipe (being not drawn into figure), is both connected through a screw thread, original oxygen hose and the original fuel Pipe is equipped with screw buckle, and screw buckle holds out against the other end of the resetting spring 1-6, realizes the limit of resetting spring 1-6.

The second valve body hyperbaric oxygen channel 1-14, the second valve body preheating oxygen channel 1-15, the second body fuel channel 1- 16 preheat oxygen channel 1-12, the first body fuel channel 1- with the first valve body hyperbaric oxygen channel 1-11, first valve body respectively 13 are connected to by the annular groove 1-43；

The valve rod 1-2 profiles are cylinder, on valve rod 1-2 with the first valve body hyperbaric oxygen channel 1-11, first Valve body preheats oxygen channel 1-12 and the first body fuel channel 1-13 opposite positions and is equipped with through-flow platform successively, described through-flow flat Platform includes the through-flow platform 1-23 of hyperbaric oxygen, the through-flow platform 1-22 and through-flow platform 1-21 of fuel of preheating oxygen successively；

The hyperbaric oxygen is through-flow platform 1-23, preheating oxygen is through-flow platform 1-22 and the through-flow 1-21 platforms of fuel are along the valve Bar 1-2 axis directions are equipped with chamfering；

The chamfering 1-24 of the through-flow platform of hyperbaric oxygen states the through-flow platform of fuel in one's power more than the through-flow platform of the preheating oxygen Chamfering, it is described preheating the through-flow platform of oxygen state in one's power the through-flow platform of fuel chamfering it is consistent.

The arrival end of the first valve body hyperbaric oxygen channel 1-11, the first body fuel channel 1-13 arrival ends respectively with institute Outlet end, the outlet end of valve body mixing oxygen channel 1-17 for stating the second valve body high-pressure channel 1-14 are axially vertical.

Second body fuel channel 1-16 and second valve body preheating oxygen channel 1-15 is bent passage, In, the second valve body preheating oxygen channel 1-15 is right angle bent passage.

Angle between the fillet surface and through-flow flat surface is 140 °.

The fillet surface is arc surface.

One end of the valve rod 1-2 is connected with rotating handles 1-3, and three for closing, lighting a fire and cutting are equipped on valve body 1-1 A corner mark.

The utility model further relates to a kind of automatic cutting cutting torch, including following two embodiments：

Embodiment 1

Some fabrication holes, such as the second pipette tips mixing oxygen channel 4-6, the second pipette tips hyperbaric oxygen channel 4- are depicted in Figure 19 5, it is right angle bent passage, also includes two sections of channels, this just needs the outer wall in connection ontology to start to punch, it is necessary to every section The inevitable outer wall in connection ontology of formation in channel leaves a fabrication hole, these fabrication holes are required to later stage closure.

As shown in Fig. 1-Figure 19,

A kind of automatic cutting cutting torch, including above-mentioned control valve 1 and cutter unit 4, the cutter unit 4 and the control Valve 1 is connected by high-pressure oxygen tube 2 and mixing oxygen pipe 3, and the high-pressure oxygen tube 2 and the mixing oxygen pipe 3 are hose；Described second Valve body hyperbaric oxygen channel 1-14, valve body mixing oxygen channel 1-17 are cut by the high-pressure oxygen tube 2, mixing oxygen pipe 3 with described respectively The connection of unit 4 is cut, injecting tube 1-5 is also equipped in the valve body mixing oxygen channel 1-17；

The cutter unit 4 is atomization pipette tips, including connects ontology and pipette tips ontology, the connection ontology and the pipette tips Ontology is tightly connected, and the connection ontology is axial consistent with the pipette tips ontology；

The pipette tips ontology is equipped with the first pipette tips hyperbaric oxygen channel 4-8, and the first pipette tips mix oxygen channel 4-9, Duo Gewei Hole 4-3 and cutting torch interface 4-4, multiple micropore 4-3 are divided using the first pipette tips hyperbaric oxygen channel 4-8 as axis in a ring Cloth, the first pipette tips hyperbaric oxygen channel 4-8 are connected to the cutting torch interface 4-4, first pipette tips mixing oxygen channel 4-9 with The input end connection of each micropore 4-3, the outlet end of the micropore 4-3 is connected to the cutting torch interface 4-4；

The connection ontology be equipped with hyperbaric oxygen interface 4-1, mixing oxygen interface 4-2, the second pipette tips hyperbaric oxygen channel 4-6 and Second pipette tips mix oxygen channel 4-5, the hyperbaric oxygen interface 4-1, the second pipette tips hyperbaric oxygen channel 4-6 and the first pipette tips hyperbaric oxygen Channel 4-8 is sequentially communicated, the mixing oxygen interface 4-2, the second pipette tips mixing oxygen channel 4-5 and the first pipette tips mixing oxygen channel 4- 9 are sequentially communicated；

The first pipette tips mixing oxygen channel 4-9 is the toroidal cavity being arranged in micropore 4-3 arrival ends, first pipette tips Mix axis of the axis of oxygen channel 4-9, the first pipette tips hyperbaric oxygen channel 4-8 and the cutting torch interface 4-4 with pipette tips ontology It overlaps；

The hyperbaric oxygen interface 4-1 and the oxygen interface 4-2 that mixes are axially consistent, the hyperbaric oxygen interface 4-1 with it is described It mixes oxygen interface 4-2 and the connection ontology is axially vertical, the second pipette tips hyperbaric oxygen channel 4-6 and second pipette tips are mixed It is bent passage to close oxygen to lead to 4-5.

It is right angle bent passage that the second pipette tips hyperbaric oxygen channel 4-6 and second pipette tips mixing oxygen, which lead to 4-5,.

Mixing oxygen flow regulating valve 4-7 is installed on the second pipette tips mixing oxygen channel 4-5.

The micropore 4-3 has 8-12, aperture 0.5-3mm.

Angle between the axis of the micropore 4-3 and the axis of the first pipette tips hyperbaric oxygen channel 4-8 is acute angle, and Circumference where multiple micropore 4-3 forms that arrival end is larger, smaller pyramidal in outlet end.

The connection ontology and the pipette tips ontology are all made of copper alloy.

The cutting torch interface 4-4 is equipped with external screw thread, for connecting cutting torch.

Embodiment 2

It is in place of the difference of embodiment 1：As shown in figure 20, the hyperbaric oxygen interface 4-1 mixes oxygen interface with described 4-2 is axially consistent, and the hyperbaric oxygen interface 4-1 and the oxygen interface 4-2 that mixes are axial consistent with the connection ontology, described It is bent passage that second pipette tips hyperbaric oxygen channel 4-6 and second pipette tips mixing oxygen, which lead to 4-5,.

The operation principle of the utility model is as follows：

Rotary valve rod 1-2 to as seen in figs. 8-10 when, the first hyperbaric oxygen channel, the first valve body preheating oxygen channel and the first valve Pellet in fluid fuel channel is not open-top, and hyperbaric oxygen, preheating oxygen and fuel cannot pass through, and cutting torch, which is in, at this time closes shape State.

Rotary valve rod to as shown in figs. 12-14 when, valve rod 1-2 open-top first valve bodies preheating oxygen channel and the first body fuel Pellet in channel allows preheating oxygen and fuel to pass through, and the pellet in the first valve body hyperbaric oxygen channel is not open-top, and hyperbaric oxygen is not It can pass through, cutting torch is in fired state at this time.

Rotary valve rod to as seen in figs. 15-17 when, the first hyperbaric oxygen channel, the first valve body preheating oxygen channel and the first valve body Pellet in fuel channel is open-top, at this point, hyperbaric oxygen, preheating oxygen and fuel can pass through, welding torch is in weldering at this time Cut state.

The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model Within the scope of shield.

Claims (10)

1. a kind of cutting torch control valve, which is characterized in that including valve body and valve rod, the valve body is equipped with valve hole, the valve Bar rotatably passes through the valve hole；The valve body is equipped with valve body oxygen intake, the first valve body hyperbaric oxygen channel, first Valve body preheats oxygen channel and the first body fuel channel, the valve body oxygen intake and the first valve body hyperbaric oxygen channel and the One valve body preheats the entrance connection in oxygen channel；

Be additionally provided on the valve body the second valve body hyperbaric oxygen channel, the second valve body preheating oxygen channel, the second body fuel channel and Valve body mixing oxygen channel, the second valve body preheating oxygen channel, the second body fuel channel goes out described in the second valve body hyperbaric oxygen channel Mouth end is connected with the valve body mixing oxygen channel；

The first valve body hyperbaric oxygen channel, first valve body preheating oxygen channel, the first body fuel channel are stepped hole, The stepped hole includes external macropore and internal aperture；

The first valve body hyperbaric oxygen channel, first valve body preheating oxygen channel are mounted in the first body fuel channel Pellet component, the pellet component include pellet and resetting spring, and the pellet includes internal marble head and external pellet Protrusion, is equipped with annular groove between the marble head and the pellet protrusion, the diameter of the marble head is straight with the aperture Diameter is adapted, and the internal diameter of the annular groove is less than the diameter of the aperture, and the diameter of the pellet protrusion is more than the aperture Diameter, and no more than macropore diameter；The resetting spring is mounted on the outside of pellet protrusion, and one end holds out against the bullet Sub- protrusion；

The second valve body hyperbaric oxygen channel, the second valve body preheating oxygen channel, the second body fuel channel respectively with the first valve body Hyperbaric oxygen channel, first valve body preheating oxygen channel, the first body fuel channel are connected to by the annular groove；

The valve rod profile is cylinder, and oxygen channel is preheated with the first valve body hyperbaric oxygen channel, the first valve body on valve rod It is equipped with through-flow platform successively with the first body fuel channel opposite position, the through-flow platform includes that hyperbaric oxygen is through-flow flat successively Platform preheats the through-flow platform of oxygen and the through-flow platform of fuel；

The hyperbaric oxygen is through-flow platform, preheating oxygen is through-flow platform and the through-flow platform of fuel are equipped with along the valve rod axis direction Angle；

One end of the valve rod is connected with rotating handles.

2. cutting torch control valve according to claim 1, which is characterized in that the entrance in the first valve body hyperbaric oxygen channel End, the first body fuel feeder connection end respectively with the outlet end of the second valve body high-pressure channel, valve body mixing oxygen channel Outlet end is axially vertical.

3. cutting torch control valve according to claim 1, which is characterized in that the chamfering of the through-flow platform of hyperbaric oxygen is more than institute The chamfering that the preheating through-flow platform of oxygen states the through-flow platform of fuel in one's power is stated, the through-flow platform of the preheating oxygen states the through-flow platform of fuel in one's power Chamfering it is consistent.

4. a kind of automatic cutting cutting torch, which is characterized in that including cutter unit and control as described in any one of claims 1-3 Valve, the cutter unit are connect with the control valve by high-pressure oxygen tube and mixing oxygen pipe, the high-pressure oxygen tube and the mixing Oxygen pipe is hose；

The second valve body hyperbaric oxygen channel, valve body mixing oxygen channel respectively by the high-pressure oxygen tube, mixing oxygen pipe with it is described Cutter unit connects, and injecting tube is also equipped in the valve body mixing oxygen channel.

5. automatic cutting cutting torch according to claim 4, which is characterized in that the cutter unit is atomization pipette tips, including Ontology and pipette tips ontology are connected, the connection ontology is tightly connected with the pipette tips ontology, the connection ontology and the pipette tips The axial direction of ontology is consistent；

The pipette tips ontology is equipped with the first pipette tips hyperbaric oxygen channel, and the first pipette tips mixing oxygen channel, multiple micropores and cutting torch connect Mouthful, multiple micropores are distributed using the first pipette tips hyperbaric oxygen channel as axis in a ring, and the first pipette tips hyperbaric oxygen is logical Road and the cutting torch orifice, the first pipette tips mixing oxygen channel is connected to the input end of each micropore, described micro- The outlet end in hole and the cutting torch orifice；

The connection ontology is equipped with hyperbaric oxygen interface, mixing oxygen interface, the second pipette tips hyperbaric oxygen channel and the mixing of the second pipette tips Oxygen channel, the hyperbaric oxygen interface, the second pipette tips hyperbaric oxygen channel and the first pipette tips hyperbaric oxygen channel are sequentially communicated, the mixing Oxygen interface, the second pipette tips mixing oxygen channel and the first pipette tips mixing oxygen channel are sequentially communicated；

First pipette tips mixing oxygen channel is the toroidal cavity being arranged in micropore arrival end, and the first pipette tips mixing oxygen is logical The axis in road, the first pipette tips hyperbaric oxygen channel and the cutting torch interface is overlapped with the axis of pipette tips ontology.

6. automatic cutting cutting torch according to claim 5, which is characterized in that the hyperbaric oxygen interface connects with the oxygen that mixes Mouthful axial consistent, the hyperbaric oxygen interface mixes oxygen interface and the connection ontology is axially vertical, second pipette tips with described It is bent passage that hyperbaric oxygen channel and second pipette tips mixing oxygen, which lead to,.

7. automatic cutting cutting torch according to claim 5, which is characterized in that the hyperbaric oxygen interface connects with the oxygen that mixes It is mouthful axial consistent, the hyperbaric oxygen interface with it is described mix oxygen interface and the connection ontology axially unanimously, second rifle It is bent passage that head hyperbaric oxygen channel and second pipette tips mixing oxygen, which lead to,.

8. the automatic cutting cutting torch described according to claim 6 or 7, which is characterized in that the second pipette tips hyperbaric oxygen channel and The logical second pipette tips mixing oxygen is right angle bent passage.

9. the automatic cutting cutting torch described according to claim 6 or 7, which is characterized in that on the second pipette tips mixing oxygen channel Mixing oxygen flow regulating valve is installed.

10. automatic cutting cutting torch according to claim 8, which is characterized in that the axis of the micropore and first rifle Angle between the axis in head hyperbaric oxygen channel is acute angle, and the circumference formation arrival end where multiple micropores is larger, outlet end Smaller is pyramidal.