CN201126024Y

CN201126024Y - Gas valve

Info

Publication number: CN201126024Y
Application number: CNU2007201812524U
Authority: CN
Inventors: 黄依华
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-11-07
Filing date: 2007-11-07
Publication date: 2008-10-01
Anticipated expiration: 2017-11-07

Abstract

The utility model relates to a gas valve, set up a valve port on the gas flow path between air inlet and gas outlet, and the position that is between valve port and gas outlet adjacent to the gas flow path is equipped with a linking portion that supplies power magnetic means to erect, linking portion one be equipped with be used for preventing the gas to leak elastic airtight membrane, electromagnetic means relies on magnetic drive one to establish in the gas flow path with the valve port correspond with the valve port in order to open and close the valve, adjust the valve port aperture size valve plug, but the utility model discloses the most important characteristics lie in that the bore of valve plug is greater than the bore of valve port, and the valve plug sets up in the position of valve port towards the air inlet end, makes elastic airtight membrane be located the downstream position relative to valve plug in the gas flow path; when the pressure of the air inlet is overlarge, the valve plug can be tightly propped against the valve port at the first time, so that the situation of self-opening air leakage of the valve port caused by overlarge air supply pressure can be prevented, and the situation of rupture or damage of the elastic airtight film caused by overlarge pressure can be further prevented.

Description

Gas valve

Technical field

The utility model relates to a kind of valve, particularly a kind of gas valve, and it has the gas valve of separable installing proportional electromagnetic valve group, and its valve plug is provided in a side of the position of valve port towards inlet end, can be pressed against on the valve port more closely when suction pressure is excessive.

Background technique

(for example: gas stove or gas hot-water apparatus) gas valve is that a valve plug group is set on the flow path of its valve body to existing electronic gas tool, can make gas valve present the aspect of opening or closing by the control to the valve plug group.

The existing gas valve structure of this kind, be provided with on the valve plug group irony position, one can inhale the calutron that moves valve plug group irony position after electric, and a spring that contacts at the valve plug group is set in valve body; When the calutron start, can drive the valve plug group and carry out displacement, and make the aforementioned spring of establishing that supports produce corresponding deformation with the storage elasticity potential energy; When calutron stopped start, described spring promptly disengages the elasticity potential energy made the playback of valve plug group.

The start of aforementioned electromagnetic device, demand in the visual use and moving with the unlatching of gas valve or close aspect one of them is corresponding, otherwise the opportunity that spring pushes away the playback of multiple valve plug group then with the closing or start that one of them is corresponding of gas valve, to present enforcement aspect normally closed or that often open.

Yet, the calutron of existing gas valve structure and relevant valve plug group are built in the gas valve in being, in the manufacturing assembling of being correlated with, when detecting maintenance action, calutron and valve plug group also are not easy split group, and also the situation that combustion gas leaks may take place when assembly failure.

In addition, gas valve on one side is when the air feed end pressure is excessive, the valve plug of its valve plug group tends to be pushed away valve port because of the excessive quilt of pressure, and produce valve port from the phenomenon of opening, and cause combustion gas to leak or the situation of improper air feed, and when pressure excessive when to a certain degree above, in gas valve to prevent that elasticity airtight film that combustion gas leaks possibly so and break.

In view of not readily removable group of the existing problem of background technique, the excessive easy damage of pressure, gas leakage ... etc. problem, model utility designer has designed the utility model " gas valve ", to solve the existing problem of aforementioned existing gas valve.

Summary of the invention

But main purpose of the present utility model is to provide a kind of modular assembling and can prevents because of the excessive gas valve of opening certainly or damaging of pressure.

For achieving the above object, the technical solution adopted in the utility model is: a kind of gas valve, it is characterized in that: combined by a valve body, an auxiliary valve body and a separable calutron that is installed on valve body and the auxiliary valve body, described valve body and auxiliary valve body form a suction port, that imports for combustion gas and supply the air outlet of combustion gas derivation, and form a fuel gas flow path between suction port and the air outlet, described auxiliary valve body and calutron constitute a separable proportional electromagnetic valve group that is installed on the valve body;

Wherein, described auxiliary valve body is provided with the convergence part that a power supply magnetic device sets up adjacent to the position in fuel gas flow path, and described auxiliary valve body includes one and intercepts the valve port between suction port and convergence part in the fuel gas flow path, one is located at the airtight diaphragm of elasticity that leaks with the combustion gas that prevents the fuel gas flow path in the convergence part, one greater than the valve port bore and be installed in valve port towards the suction port end to adjust valve port opening and when suction port pressure is excessive, to push against valve plug at valve port, one runs through valve port and is connected in the valve rod of valve plug and the airtight diaphragm of elasticity with two ends, one to be located at the airtight diaphragm another side of elasticity middle position corresponding with calutron and produce the permanent magnet of magnetic force.

When gas supply end supply gas pressure is excessive, the combustion gas meeting of high pressure aspect pours into gas valve from suction port, because valve plug is arranged on valve port towards the suction port end, therefore the impact thrust that fuel gas flow and air pressure produced, can impact earlier at valve plug, valve plug is pushed be against valve port and produces sealing effect closely, can't produce valve port from the phenomenon of opening, and the airtight diaphragm of elasticity is arranged on the downstream position of valve plug, therefore do not have because of bearing the excessive situation of breaking or damaging of pressure, therefore can prolong the working life of the airtight diaphragm of elasticity yet.

Aforementioned suction port, air outlet can all be arranged on the valve body; The adjacent valve that is communicated in the fuel gas flow path that is provided with that perhaps can be between valve import and valve plug is connected in series mouthful, and and make suction port be connected in series mouth with adjacent valve being located on the valve body, and the air outlet is located on the auxiliary valve body.

Auxiliary valve body can further comprise the spring that a pushing tow valve plug keeps sealing fuel gas flow path, makes the valve plug normality remain on the position of close port; Calutron can be intercepted outside the fuel gas flow path by the airtight diaphragm of elasticity, the magnetic strength element is a permanent magnet, and calutron comprises a can regulate and is wrapped in iron core peripheral foundation energising size and allows iron core produce the coil that different magnetic repulsions are pushed permanent magnet and valve plug open with the iron core and of permanent magnet relative distance.

Compared to background technique, the utility model has following advantage at least:

1. when the gas supply end pressure is excessive, valve plug can not be open and the situation of leaking gas.

2. when the gas supply end pressure was excessive, valve plug can stop that combustion gas enters its downstream, damaged because of pressure is excessive to prevent the gas valve assembly that is located at the downstream, for example: can prevent that the airtight diaphragm of elasticity from the situation of breaking or damaging because of pressure is excessive taking place.

3. can increase the valve plug normality and push against outside the effect of blocking-up fuel gas flow by the magnetic attraction of permanent magnet attraction iron core, and the aperture that can come further control valve plug by suitable power supply control, in order to do profit the gas supply amount is regulated.

4. valve body, auxiliary valve body, calutron are to adopt design of modularization, therefore, can cooperate the simple and easy dismounting of valve body of various different sizes, not only Applicable scope is wider, and can allow a plurality of different valve bodies be connected in series, help manufacturing on industry, assembling, detection, maintenance ... carrying out Deng operation.

Description of drawings

Fig. 1: the utility model first embodiment's three-dimensional exploded view;

Fig. 2: the utility model first embodiment's sectional exploded view;

Fig. 3: the utility model first embodiment's stereo appearance figure;

Fig. 4: the utility model first is executed routine valve plug closed condition sectional view;

Fig. 5: the utility model first embodiment's valve plug opening state sectional view;

Fig. 6: the utility model second embodiment's sectional exploded view;

Fig. 7: the utility model second embodiment analyses and observe constitutional diagram;

Fig. 8: the utility model second embodiment's serial connection schematic representation;

Fig. 9: the utility model the 3rd embodiment's schematic perspective view;

Figure 10: the utility model the 3rd embodiment's sectional view.

Description of reference numerals: 10-valve body; The 20-auxiliary valve body; The 21-valve port; The airtight diaphragm of 22-elasticity; The 23--valve plug; The 24-valve rod; The 25-permanent magnet; The 26-spring; The 30-calutron; The 31-iron core; The 32-coil; The 40-suction port; The 41-alignment grooves; The 50-air outlet; 60-fuel gas flow path; The 70-convergence part; The adjacent valve serial connection of 80-mouth; 81-contraposition projection; 90-combustion gas main valve.

Embodiment

Following foundation technological means of the present utility model lists the mode that is suitable for the utility model enforcement, and cooperates graphic explanation as back:

See also Figure 1 and Figure 2, be the utility model first embodiment's three-dimensional exploded view and sectional exploded view, gas valve is combined by a valve body 10, an auxiliary valve body 20 and a separable calutron 30 that is installed in valve body 10 and auxiliary valve body 20, auxiliary valve body 20 constitutes a separable proportional electromagnetic valve group that is installed on the valve body with calutron 30, and the stereo appearance figure that makes the modular aspect of proportional electromagnetic valve group energy be installed in after making up on the gas valve has as shown in Figure 3.

Described valve body 10 forms suction port 40, an air outlet 50 that supplies combustion gas to derive for the combustion gas importing with auxiliary valve body 20, and form a fuel gas flow path 60 between suction port 40 and the air outlet 50, combustion gas can be located at after suction port 40 on the valve body 10 imports certainly, the auxiliary valve body 20 of flowing through is derived from the air outlet 50 that is located on the valve body 10 again, with keying and the aperture control of carrying out the combustion gas circulation by 20 pairs of fuel gas flow paths of auxiliary valve body.

Auxiliary valve body 20 is provided with the convergence part 70 that a power supply magnetic device 30 sets up adjacent to the position in fuel gas flow path, and described auxiliary valve body 20 includes one and is located at the valve port 21 between suction port 40 and convergence part 70 in the fuel gas flow path 60, one is located at the airtight diaphragm 22 of the elasticity that leaks in order to the combustion gas that prevents fuel gas flow path 60 on the convergence part 70, one is installed in valve port 21 towards the corresponding valve plug 23 of suction port 40 ends and valve port 21, one runs through valve port 21 and is connected in the valve rod 24 of valve plug 23 and the airtight diaphragm 22 of elasticity with two ends, one to be located at the airtight diaphragm 22 another side middle positions of elasticity and calutron 30 corresponding and produce the permanent magnet 25 of magnetic force, one pushing tow valve plug 23 keeps the spring 26 in sealing fuel gas flow path 60.

Shown in Figure 4 is that the utility model first is executed routine valve plug closed condition sectional view, aforementioned valve plug 23 is greater than the bore of valve port 21 and be located at the position of valve port 21 towards suction port 40, it is except the aperture of available adjustment valve port 21, when the gaseous-pressure of being supplied when the gas supply end is excessive, valve plug 23 can push against at valve port 21 valve port 21 is remained on closely, this design is except preventing that valve plug 23 is because of the excessive valve port 21 of supply gas pressure (opening certainly), because elasticity airtight film 22 is to be arranged in the downstream position of fuel gas flow path 60 with respect to valve plug 23, therefore, even the gaseous-pressure that the gas supply end is supplied is excessive, the combustion gas that is high pressure conditions also can be stopped by valve plug 23 earlier, and can not impact to elasticity airtight film 22.

See also shown in Figure 5, it is to show the utility model first embodiment's valve plug opening state sectional view, calutron 30 and permanent magnet 25 corresponding and comprise one with permanent magnet 25 in opposite directions and the iron core 31 and of can regulate and permanent magnet 25 relative distances to be wrapped in iron core 31 peripheral according to switching on big or small and allowing the different magnetic repulsions of iron cores 31 generations push the coil 32 of permanent magnet 25 and valve plug 23 open.

When coil 32 energisings, the magnetic repulsion that produces between calutron 30 and the permanent magnet 25 can push away valve plug 23 and the confession fuel gas flow, and the big I of magnetic repulsion changes with coil 32 "on" positions, to change the displacement amount that pushes away of valve plug 23, and then change between valve port 21 and the valve plug 23 and can in order to do profit the gas supply amount be regulated for the aperture of fuel gas flow.

The magnetic repulsion that is produced between above-mentioned calutron 30 and the permanent magnet 25, be that size of current with coil 23 energising has the proportionate relationship that can expect, measure, therefore by aforementioned control to the size of current of switching on, can change the size of magnetic repulsion, and then change between valve port 21 and the valve plug 23 and can in order to do profit the gas supply amount be regulated accurately for the aperture of fuel gas flow.

When needs stop fuel gas supply, only need interrupt electric power, because the magnetic repulsion that calutron 30 is produced has not existed, the magnetic attraction that spring 26 by compression can disengage the elasticity potential energy, cooperate 25 pairs of iron cores 31 of permanent magnet to be produced, valve plug 23 can be pushed away and return original position again, and make valve plug 23 can cover sealing valve port 21 once again, recover the state of blocking-up fuel gas flow.

Figure 6 and Figure 7, be the utility model second embodiment sectional exploded view with analyse and observe constitutional diagram, the utility model is can be provided with one for the adjacent valve serial connection mouth 80 of combustion gas bypass to adjacent gas valve on valve body 10, and air outlet 50 changed be located on the auxiliary valve body 20, combustion gas can be located at after suction port 40 on the valve body 10 imports certainly, the auxiliary valve body 20 of flowing through is promptly directly derived from the air outlet 50 that is located on the auxiliary valve body 20.

See also shown in Figure 8, it is the purpose that is provided with of second embodiment's serial connection schematic representation, aforementioned adjacent valve serial connection mouth 80, be to make a plurality of gas valves can obtain common gas supply source (making each suction port 40 be the series connection aspect) in the mode of direct serial connection, and can make the effect (making each air outlet 50 be aspect in parallel) of the output terminal tool air feed out of the ordinary of each gas valve, this embodiment can be used in many mouthfuls of formula gas stoves, fireplace, reach baking device ... on the device that need utilize a plurality of gas valves, be the utility model scope applicatory as the control gas flow.

And be to make to be convenient to assembling and contraposition arrangement between the gas valve with adjacent valve serial connection mouth 80, be to be provided with a contraposition projection 81 that cooperates with the suction port 40 set alignment grooves 41 of adjacent valve body 10 being provided with on the suction port 40 on the alignment grooves 41 for adjacent valve serial connection mouthful 80 contrapositions of adjacent valve body 10, adjacent valve serial connection mouthfuls 80, to reach the effect of quick assembling with cooperating of contraposition projection 81 by means of alignment grooves 41.

See also Fig. 9 and shown in Figure 10, be the utility model the 3rd embodiment's schematic perspective view and sectional view, the 3rd embodiment is all identical with second embodiment's operation principles, structuring concept, only on moulding, outward appearance, spatial configuration, more simplify, make the user be connected in series a plurality of gas valves according to user demand, or series quantity changed, and the gas valve string is located on the associated component of gas supply end, for example gas valve can directly be serially connected on the combustion gas main valve 90 that is disclosed in graphic, and can not take too many exceptional space.

In sum, the utility model provides a kind of proportional electromagnetic valve group of separable installing, it not only has and opens and closes outside the function whether combustion gas circulate, also tool further has the specific function of regulating the gas supply ratio, especially have and be easy to the enterprising characteristic of tearing group open of valve body, help on industry and make, assembling, detect, maintenance ... carrying out Deng operation, even visual different user demand and the calutron of changing different electrical specification are implemented, the most important thing is when suction port pressure is excessive, valve plug 23 can push against at valve port 21 in the very first time, available preventing to cause valve port 21 from opening the situation of gas leakage because of supply gas pressure is excessive, and can further prevent to take place the situation that elasticity airtight film 22 breaks or damages because of pressure is excessive.

More than explanation is just illustrative for the utility model, and it is nonrestrictive, those of ordinary skills understand, under the situation of the spirit and scope that do not break away from claim and limited, can make many modifications, variation or equivalence, but but all will fall within the claim restricted portion of the present utility model.

Claims

1. gas valve, it is characterized in that: combined by a valve body, an auxiliary valve body and a separable calutron that is installed on valve body and the auxiliary valve body, described valve body and auxiliary valve body form a suction port, that imports for combustion gas and supply the air outlet of combustion gas derivation, and form a fuel gas flow path between suction port and the air outlet, described auxiliary valve body and calutron constitute a separable proportional electromagnetic valve group that is installed on the valve body;

2. gas valve according to claim 1 is characterized in that: suction port, air outlet are located on the valve body.

3. gas valve according to claim 1 is characterized in that: the adjacent valve that is communicated in the fuel gas flow path that is provided with between valve import and the valve plug is connected in series mouthful, and suction port is connected in series mouth and is located on the valve body with adjacent valve, and the air outlet is located on the auxiliary valve body.

4. gas valve according to claim 1 is characterized in that: auxiliary valve body further comprises the spring that a pushing tow valve plug keeps sealing fuel gas flow path.

5. gas valve according to claim 1 is characterized in that: calutron is intercepted outside the fuel gas flow path by the airtight diaphragm of elasticity.

6. gas valve according to claim 1 is characterized in that: calutron comprises a can regulate and is wrapped in iron core peripheral foundation energising size and allows iron core produce the coil that different magnetic repulsions are pushed permanent magnet and valve plug open with the iron core and of permanent magnet relative distance.