CN201297625Y

CN201297625Y - Gas heating torch

Info

Publication number: CN201297625Y
Application number: CNU2008201678977U
Authority: CN
Inventors: 陈定龙; 童芬波; 张建达
Original assignee: NINGBO LONGXING WELDING AND CUTTING EQUIPMENT CO Ltd
Current assignee: NINGBO LONGXING WELDING AND CUTTING EQUIPMENT CO Ltd
Priority date: 2008-11-11
Filing date: 2008-11-11
Publication date: 2009-08-26
Anticipated expiration: 2018-11-11

Abstract

A gas heating torch is characterized in that a valve body (3) comprises a reset valve (32) for ignition and a quick-opening valve (31) for normal operation, the reset valve (32) has one end thereof communicated with the gas outlet of a handle (1) and the other end thereof communicated with a vent pipe (4), the quick-opening valve (31) has one end thereof communicated with the gas outlet of the handle (1) and the other end thereof communicated with the vent pipe (4). The gas heating torch has the advantages that the dedicated low-flow reset valve for ignition is specially added to control the maximum flow during ignition, so that the flame generated at the maximum flow during ignition can not escape out of a fire hole, the safety of an operator is ensured; and the quick-opening valve for normal operation is also added, and the normal operation can be carried out only be pressing the handle press bar of the quick-opening valve by the operator, so that the use is convenient and safe, and the gas heating torch is an innovation which has practical value.

Description

The gas heating blowpipe

Technical field

The utility model provides a kind of inflammable gas burning spray gun, particularly the gas heating blowpipe of gases such as combustion fluid liquefied oil gas, natural gas, acetylene gas.

Background technology

Existing a kind of patent No. is that 89221302.7 Chinese utility model patent has proposed a kind of structure, its structure is by being assembled in the spray tube, the valve body that have nozzle on the barrel and connecing that mouth etc. forms, quantity control valve and variable control valve wherein are housed in same valve body, can satisfy the requirement of long-term constant temperature heating and local warming's heating.Have easy and simple to handlely, use safelyr, be not subjected to the influence of wind and rain, and use cost is low.But its shortcoming is: because the air-flow that quantity control valve flows out is big, be difficult to control, when operating personnel begin to light a fire in operation, the finger because the size of very difficult control gas flow is easier to burn, and when middle move operation seat, also must close the heating blowpipe main valve, carry out ignition operation again, not only bother but also need to repeat unsafe ignition operation, so its structure awaits to improve.

Summary of the invention

Technical problem to be solved in the utility model is to provide a kind of gas heating blowpipe at above-mentioned prior art present situation, the flame that maximum stream flow produced that can make when igniting can not be scurried out burner and guaranteed the personal safety of operator when igniting, as long as and can realize that handle that the operator presses quick open valve just can carry out the purpose of operate as normal.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: this gas heating blowpipe, include the breather pipe that an end links to each other with igniting portion, in establish the handle that wireway and an end link to each other with air inlet pipe, the other end of described breather pipe links together by the gas outlet of valve body and handle, it is characterized in that: described valve body comprises the reset valve that is used to light a fire and is used for the quick open valve of operate as normal, one end of reset valve is connected with the gas outlet of handle, and the other end of reset valve is connected with breather pipe, and an end of open valve is connected with the gas outlet of handle fast, and its other end is connected with breather pipe.

As improvement, described reset valve and quick open valve may be selected to be with the structure that the gas outlet of handle is connected: its inner chamber import of reset valve is by the intracavity inter-connection of passage with fast band open valve, and but the outlet of the inner chamber of reset valve is connected with breather pipe by fine setting spool open and close type, and the air inlet of open valve inner chamber is connected with the gas outlet of handle by the airway in the valve body fast, but and the outlet of described quick open valve is connected with breather pipe by quick unlatching spool open and close type ground.

Improve again, but the outlet of described quick open valve by the structure that quick unlatching spool open and close type ground is connected with breather pipe is: be provided with spring in the open valve inner chamber fast, one end of this spring contacts mutually with the inwall of quick open valve inner chamber, and its other end contacts mutually with an end of opening spool fast, and the other end of opening spool fast extends outside the valve body, and contact mutually with handle depression bar that the hinge formula is arranged on the valve body, and be positioned at breather pipe is communicated with the place with quick open valve inner chamber valve body and be provided with Ka Tai, and be provided with and block the suitable dop that can block and open breather pipe of platform with quick unlatching spool on the Ka Tai relevant position; This described dop is equipped with O-ring seals on it.

Improve again, but the outlet of the inner chamber of described reset valve by the structure that fine setting spool open and close type is connected with breather pipe is: the front end of described fine setting spool is for conical, and the tail end of fine setting spool extends outside the valve body, be connected with the knob that moves forward and backward by threaded adjusting fine setting spool, and the structure that conical fine setting spool front end can block and open the inner chamber outlet with the inner chamber outlet of reset valve fits in.

Improve again, also can be provided with on its position, gas outlet of described handle and can close and open the switch valve of gas outlet.

Improve, described igniting portion includes a fire support, is distributed with combustion-supporting hole on the side face of a fire support again.

Compared with prior art, advantage of the present utility model has been to increase specially the reset valve of the low discharge of igniting special use, maximum stream flow when having controlled igniting, the flame that maximum stream flow produced when the making igniting burner of can not scurrying out, thus the personal safety of operator when igniting guaranteed; Also have, increased the quick open valve of operate as normal, in the time will carrying out operate as normal, just can carry out operate as normal as long as the operator presses the handle depression bar of quick open valve, so it is very convenient to work; Have again, owing to increased reset valve and quick open valve, thereby in the course of work of haveing suffered, only need once light pre-burning flame (being the long combustion fire of small flame) just, the handle flame of pressing quick open valve when needing operate as normal just reaches operate as normal situation, and the handle flame of decontroling quick open valve just has only pre-burning flame.So use not only convenient but also safety, be a kind of innovation of great practical value.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is a partial sectional view among Fig. 1;

Fig. 3 is the partial sectional view of Fig. 1;

Fig. 4 is along the cutaway view of A-A line among Fig. 3;

Fig. 5 is the enlarged drawing of I portion among Fig. 2;

Fig. 6 is the structure cutaway view of Fig. 2 in open mode.

The specific embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

Extremely shown in Figure 6 as Fig. 1, the gas heating blowpipe of present embodiment, include breather pipe 4 that an end links to each other with igniting portion, in establish the handle 1 that wireway and an end link to each other with air inlet pipe, the other end of breather pipe 4 links together by the gas outlet of valve body 3 with handle 1.Valve body 3 comprises reset valve 32 that is used to light a fire and the quick open valve 31 that is used for operate as normal, one end of reset valve 32 is connected with the gas outlet of handle 1, and the other end of reset valve 32 is connected with breather pipe 4, and an end of open valve 31 is connected with the gas outlet of handle 1 fast, and its other end is connected with breather pipe 4.Described reset valve 32 and quick open valve 31 with the structure that the gas outlet of handle 1 is connected are: be connected with the inner chamber 31b of fast band open valve 31 by passage 32e in the inner chamber 32b of reset valve 32 import, and but the inner chamber 32b of reset valve 32 outlet is connected with breather pipe 4 by fine setting spool 32c open and close type, and the air inlet of open valve inner chamber 31b is connected with the gas outlet of handle 1 by the airway 31c in the valve body 3 fast, but and the outlet of quick open valve 31 is connected with breather pipe 4 by quick unlatching spool 31f open and close type ground.And but the outlet of described quick open valve 31 by the structure that quick unlatching spool 31f open and close type ground is connected with breather pipe 4 is: be provided with spring 31a among the open valve inner chamber 31b fast, the end of this spring 31a contacts mutually with the inwall of quick open valve inner chamber 31b, and its other end contacts mutually with an end of opening spool 31f fast, and the other end of opening spool 31f fast extends outside the valve body 3, and contact mutually with handle depression bar 33 that the hinge formula is arranged on the valve body 3, and be positioned at breather pipe 4 is communicated with the place with quick open valve inner chamber 31b valve body 3 and be provided with card platform 34, and be provided with and block the suitable dop 31e that can block and open breather pipe 4 of platform 34 with quick unlatching spool 31f on card platform 34 relevant positions.And on dop 31e, be equipped with O-ring seals 31d.But the inner chamber outlet 35 at reset valve 32 by the structure that fine setting spool 32c open and close type is connected with breather pipe 4 is: the front end of fine setting spool 32c is for conical, and the tail end of fine setting spool 32c extends outside the valve body 3, be connected with the knob 32d that does to move forward and backward by threaded adjusting fine setting spool 32c, and the structure that conical fine setting spool front end 32a can block and open inner chamber outlet 35 with the inner chamber outlet 35 of reset valve 32 fits in.And the position, gas outlet of handle 1 is provided with the switch valve 2 that can close and open the gas outlet.Described igniting portion comprises a fire support 5, is distributed with combustion-supporting hole 51 on the side face of a fire support 5.

Below the utility model is described in further detail.

Gas heating blowpipe of the present utility model, to use coal gas as follows as the structural principle of combustion gas: this spray gun is made up of air induction hose adapter assembly, handle, valve body, mixer tube assembly, burner assembly.Be connected with the handle rear portion wireway air induction hose joint of this spray gun with the source of the gas of rubber hose coal gas, combustion gas is by wireway in this passage process handle, enter valve body, open the switch valve that is positioned at position, handle gas outlet, and then open reset valve, can light flame in igniting place, and when wanting operate as normal, push the handle depression bar with hand and can open quick open valve, the flammule that the combustion gas utilization has been lighted, become normal heating flame rapidly, but spray gun operate as normal so far.

The reset valve operation principle is: after the switch valve of spray gun is opened, in the counterclockwise direction the rotary fine adjustment valve execute button owing to be designed to micro-flow, throughput is controlled at just and can lights, and can light the long combustion fire of spray gun in igniting place.

The quck-opening valve operation principle is: when the switch valve of spray gun is opened, and lighted long combustion fire, at this moment pressed handle depression bar (throughput of design is bigger) on the quck-opening valve with hand, big flow gas-flow is to burner, and spray gun gets final product operate as normal.

Claims

1, a kind of gas heating blowpipe, include the breather pipe (4) that an end links to each other with igniting portion, in establish the handle (1) that wireway and an end link to each other with air inlet pipe, the other end of described breather pipe (4) links together by the gas outlet of valve body (3) with handle (1), it is characterized in that: described valve body (3) comprises reset valve (32) that is used to light a fire and the quick open valve (31) that is used for operate as normal, one end of reset valve (32) is connected with the gas outlet of handle (1), and the other end of reset valve (32) is connected with breather pipe (4), and an end of open valve (31) is connected with the gas outlet of handle (1) fast, and its other end is connected with breather pipe (4).

2, gas heating blowpipe according to claim 1, it is characterized in that: described reset valve (32) and quick open valve (31) with the structure that the gas outlet of handle (1) is connected are: its inner chamber of reset valve (32) (32b) import is connected by the inner chamber (31b) of passage (32e) with fast band open valve (31), and the inner chamber (32b) of reset valve (32) outlet by finely tuning spool (32c) but open and close type is connected with breather pipe (4), and fast the air inlet of open valve inner chamber (31b) is connected with the gas outlet of handle (1) by the airway (31c) in the valve body (3), and the outlet of described quick open valve (31) by quick unlatching spool (31f) but open and close type ground be connected with breather pipe (4).

3, gas heating blowpipe according to claim 2, it is characterized in that: the outlet of described quick open valve (31) by fast opening spool (31f) but open and close type ground with the structure that breather pipe (4) is connected is: in quick open valve inner chamber (31b), be provided with spring (31a), one end of this spring (31a) contacts mutually with the inwall of quick open valve inner chamber (31b), and its other end contacts mutually with an end of opening spool (31f) fast, and the other end of opening spool (31f) fast extends outside the valve body (3), and contact mutually with handle depression bar (33) that the hinge formula is arranged on the valve body (3), and be positioned at breather pipe (4) is communicated with the place with quick open valve inner chamber (31b) valve body (3) and be provided with Ka Tai (34), and be provided with and the suitable dop (31e) that can block and open breather pipe (4) of Ka Tai (34) with quick unlatching spool (31f) on Ka Tai (34) relevant position.

4, gas heating blowpipe according to claim 3 is characterized in that: described dop (31e) is equipped with O-ring seals (31d) on it.

5, gas heating blowpipe according to claim 2, it is characterized in that: the inner chamber of described reset valve (32) outlet (35) by fine setting spool (32c) but open and close type with the structure that breather pipe (4) is connected be: the front end of described fine setting spool (32c) is a taper shape, and the tail end of fine setting spool (32c) extends outside the valve body (3), be connected with the knob (32d) that moves forward and backward by threaded adjusting fine setting spool (32c), and the structure that conical fine setting spool front end (32a) can block and open inner chamber outlet (35) with the inner chamber outlet (35) of reset valve (32) fits in.

6, according to the described gas heating blowpipe of arbitrary claim in the claim 1 to 5, it is characterized in that: its position, gas outlet of described handle (1) is provided with the switch valve (2) that can close and open the gas outlet.

7, according to the described gas heating blowpipe of arbitrary claim in the claim 1 to 5, it is characterized in that: described igniting portion comprises a fire support (5), is distributed with combustion-supporting hole (51) on the side face of a fire support (5).