CN221221496U - Plug valve, combustion device and gas stove - Google Patents

Abstract

The utility model relates to the technical field of gas equipment, in particular to a plug valve, a combustion device and a gas stove. The plug valve comprises a shell, a valve core needle assembly, a first elastic piece, a second elastic piece, a deflector rod and an adjusting valve. The valve core needle assembly is inserted into the shell, and is movable relative to the shell along the length direction of the valve core needle assembly, and the valve core needle assembly is provided with a first end and a second end which are opposite. The first elastic piece is connected with the valve core needle assembly and is used for driving the valve core needle assembly to reset. The second elastic piece is arranged at the second end of the valve core needle assembly. The valve core needle assembly is suitable for pushing the deflector rod to move, and the deflector rod is provided with a trigger end and a contact end, and the trigger end is opposite to the second elastic piece. The regulating valve is provided with a first position and a second position, the contact end of the regulating valve is propped against the regulating valve, and the deflector rod is used for driving the regulating valve to move to the first position so as to enable the plug valve to be in a valve opening state. The plug valve has the advantages of simple structure, simple assembly process, good material universality and low cost.

Description

Plug valve, combustion device and gas stove

Technical Field

The utility model relates to the technical field of gas equipment, in particular to a plug valve, a combustion device and a gas stove.

Background

The plug valve is a core part of the household gas cooker and mainly has the functions of sealing, adjusting gas fire power, igniting and the like. When the gas burner is ignited, the plug valve is opened to convey the gas to the gas burner and ignite, and the valve needle drives the regulating valve to open or close in the plug valve so as to control the fluid to flow into the plug valve; or the plug valve is closed, so that the leakage of fluid is avoided, and the problems of complex transmission structure between the valve needle and the regulating valve and poor material universality of the plug valve exist in the related technology.

Disclosure of utility model

The present utility model is directed to solving at least one of the technical problems existing in the related art. To this end, the present utility model provides a plug valve comprising:

a housing;

The valve core needle assembly is inserted into the shell and can move relative to the shell along the length direction of the valve core needle assembly, and the valve core needle assembly is provided with a first end and a second end which are opposite;

The first elastic piece is connected with the valve core needle assembly and is used for driving the valve core needle assembly to reset;

The second elastic piece is arranged at the second end of the valve core needle assembly and can elastically deform;

The valve core needle assembly is suitable for pushing the deflector rod to move, the deflector rod is provided with a trigger end and a contact end, and the trigger end is opposite to the second elastic piece;

the regulating valve is arranged in the shell and is provided with a first position and a second position, the contact end is propped against the regulating valve, the deflector rod is used for driving the regulating valve to move towards the first position, when the regulating valve is positioned at the first position, the regulating valve is in a valve opening state, and when the regulating valve is positioned at the second position, the regulating valve is in a valve closing state.

The plug valve according to the embodiment of the utility model further comprises a reset piece, wherein the reset piece is used for driving the regulating valve to move to the second position.

According to the plug valve provided by the embodiment of the utility model, the reset piece is a spring, and the elastic coefficient of the reset piece is smaller than or equal to that of the second elastic piece.

According to the plug valve provided by the embodiment of the utility model, the second end is provided with the connecting column, and one end of the second elastic piece is sleeved on the connecting column and is connected with the connecting column.

According to the plug valve provided by the embodiment of the utility model, the second elastic piece is a spring, the connecting column is provided with the annular fixing protrusion, the diameter of the fixing protrusion is slightly larger than the inner diameter of the second elastic piece, and the end part of the second elastic piece is sleeved on the fixing protrusion.

According to an embodiment of the present utility model, the plug valve, the spool needle assembly includes:

The valve rod is arranged in the shell at one end, is arranged outside the shell at the other end and can move relative to the shell along the length direction of the valve rod;

the valve needle is positioned in the shell, one end of the valve needle is connected with one end of the valve rod, and the connecting column is arranged at the other end of the valve needle.

According to the plug valve of the embodiment of the utility model, when the regulating valve is located at the second position, the second elastic piece is spaced from the trigger end.

According to the plug valve of the embodiment of the utility model, the deflector rod is rotatably arranged in the shell, and the deflector rod comprises:

A rod body;

The trigger arm is arranged at one end of the rod body, the extending direction of the trigger arm is different from the length direction of the rod body, and the trigger arm and the second end are arranged opposite to each other;

The contact arm is arranged at the other end of the rod body, the extending direction of the contact arm is different from the length direction of the rod body, and the contact arm is suitable for propping against the regulating valve.

According to the plug valve provided by the embodiment of the utility model, the contact arm and the trigger arm are both arranged on the outer circumferential surface of the rod body, and an acute angle is formed between the extending direction of the contact arm and the extending direction of the trigger arm.

According to the plug valve provided by the embodiment of the utility model, the contact arm comprises the connecting part and the contact part, one end of the connecting part is connected with the rod body, the other end of the connecting part is connected with the contact part, the contact part inclines towards the rod body, and the contact part is suitable for being propped against the regulating valve.

The present utility model also provides a combustion apparatus comprising:

a combustion member at which the fuel gas is combusted;

the plug valve is the plug valve, and the plug valve is connected and communicated with the combustion piece so as to regulate the flow of the fuel gas.

The utility model also provides a gas stove comprising the combustion device.

According to the plug valve provided by the embodiment of the utility model, the second elastic piece is arranged at the second end of the valve core needle assembly, and in the ignition process, the second elastic piece deforms to absorb the redundant travel of the valve core needle assembly, so that the impact force is absorbed, the excessive extrusion of the deflector rod and the regulating valve is avoided, and the protection effect is realized. The plug valve has the advantages of simple structure, simple assembly process, good material universality and low cost.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.

FIG. 1 is a front view of a plug valve provided by an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of the plug valve of FIG. 1 at A-A;

FIG. 3 is a cross-sectional view of the plug valve of FIG. 1 at B-B;

FIG. 4 is a right side view of a plug valve provided by an embodiment of the present utility model;

FIG. 5 is a schematic illustration of a valve pin coupled to a second resilient member provided in an embodiment of the present utility model;

FIG. 6 is an exploded view of the structure shown in FIG. 5;

fig. 7 is a perspective view of a toggle lever provided in an embodiment of the present utility model.

Reference numerals:

100. A plug valve;

110. A housing; 111. a first chamber; 112. a second chamber; 113. a third chamber; 114. an air inlet;

120. A spool needle assembly; 121. a valve stem; 122. a valve needle; 123. a connecting column; 124. a fixing protrusion;

131. a first elastic member; 132. a second elastic member;

140. A deflector rod; 141. a rod body; 142. a trigger arm; 143. a contact arm; 1431. a connection part; 1432. a contact portion;

150. a regulating valve; 151. a reset member;

161. A first gas transmission pipeline; 162. and a second gas transmission pipeline.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present utility model will be understood in detail by those of ordinary skill in the art.

In embodiments of the utility model, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The plug valve, the combustion device and the gas range of the present utility model are described below with reference to fig. 1 to 7. It can be understood that the plug valve is a core part of the household gas cooker and mainly has the functions of sealing, adjusting gas fire power, igniting and the like. When the gas burner is ignited, the plug valve is opened to convey the gas to the gas burner and ignite, and the valve needle drives the regulating valve to open or close in the plug valve so as to control the fluid to flow into the plug valve; or the plug valve is closed to avoid fluid leakage.

Referring to fig. 1 and 2, a plug valve 100 according to an embodiment of the present utility model includes a housing 110, a spool needle assembly 120, a first elastic member 131, a second elastic member 132, a lever 140, and a regulating valve 150.

Specifically, the valve needle assembly 120 is inserted into the housing 110, and the valve needle assembly 120 is movable relative to the housing 110 along its length direction; the deflector rod 140 and the regulating valve 150 are both arranged in the shell 110, and the deflector rod 140 is positioned between the valve core needle assembly 120 and the regulating valve 150, and the deflector rod 140 plays a role in transmission. As shown in fig. 2, one end of the spool needle assembly 120 is located in the housing 110, and the spool needle assembly 120 is movable with respect to the housing 110 in its own length direction (left-right direction in fig. 2). The other end of the spool needle assembly 120 is located outside the housing 110, the user ignites by pressing the spool needle assembly 120, and the gas flow in the housing 110 can be regulated by rotating the spool needle assembly 120. The other end of the spool needle assembly 120 may be provided with a knob to facilitate user operation.

As shown in fig. 1 and 2, a first chamber 111, a second chamber 112 and a third chamber 113 which are sequentially connected and communicated are provided inside the housing 110, wherein a portion of the spool needle assembly 120 is located in the first chamber 111. A regulating valve 150 is located in the third chamber 113, the regulating valve 150 is used to regulate the amount of oxygen charged into the housing 110, and the regulating valve 150 may be a solenoid valve or a mechanical valve. The lever 140 is located within the second chamber 112. The housing 110 is provided with an air inlet 114, the air inlet 114 is communicated with the first chamber 111 or the second chamber 112, and the air inlet 114 is connected with a fuel gas supply pipeline to convey fuel gas into the plug valve 100. Further, referring to fig. 1 and 4, the housing 110 is configured with a first gas transmission pipe 161 and a second gas transmission pipe 162 communicating with the first chamber 111, the first gas transmission pipe 161 and the second gas transmission pipe 162 being connected to the combustion part to transmit the gas to the combustion part where the gas is combusted. The gas enters the housing 110 through the gas inlet 114 and is transported from the first gas transportation pipeline 161 and the second gas transportation pipeline 162 to combustion parts after passing through the first chamber 111, wherein the combustion parts are burner heads in the gas stove.

The first elastic member 131 is connected with the valve core needle assembly 120, the first elastic member 131 is used for driving the valve core needle assembly 120 to reset, a user presses the valve core needle assembly 120 to enable the valve core needle assembly 120 to move towards the inside of the shell 110, the first elastic member 131 is compressed to generate elastic force, and after the valve core needle assembly 120 is loosened, the elastic force of the first elastic member 131 drives the valve core needle assembly 120 to move towards the outside of the shell 110. As shown in fig. 2, in some embodiments, the first elastic member 131 may be a spring, the first elastic member 131 is sleeved on the valve needle assembly 120, and one end of the first elastic member 131 abuts against the valve needle assembly 120, and the other end abuts against the inner wall of the housing 110. When the valve core needle assembly 120 is pressed to move rightward, the first elastic member 131 is compressed and generates elastic force, and after the external force is removed, the first elastic member 131 drives the valve core needle assembly 120 to move leftward to restore the original position.

The spool needle assembly 120 has opposite first and second ends, as shown in fig. 2, with the end located outside of the housing 110 being the first end and the end located within the housing 110 being the second end. The second elastic member 132 is disposed at the second end of the valve needle assembly 120, and the second elastic member 132 is elastically deformable along the movement direction of the valve needle assembly 120. In some embodiments, the second elastic member 132 may be a spring. The spool needle assembly 120 is adapted to urge the lever 140 into movement, the lever 140 having a trigger end and a contact end, wherein the trigger end is opposite the second end. As shown in fig. 2, when the push spool needle assembly 120 moves rightward, the second elastic member 132 at the second end contacts the trigger end and pushes the trigger end to move, thereby moving the shift lever 140 as a whole.

The regulating valve 150 is arranged in the shell 110, the regulating valve 150 is provided with a first position and a second position, when the regulating valve 150 is positioned at the first position, the regulating valve 150 is in a valve opening state, and fluid can enter the shell 110; when the regulator valve 150 is in the second position, the regulator valve 150 is in a closed state, preventing leakage of fluid within the housing 110. The deflector rod 140 is located between the valve core needle assembly 120 and the regulating valve 150, the contact end of the deflector rod 140 is propped against the regulating valve 150, and the deflector rod 140 is used for driving the regulating valve 150 to move towards the first position so as to fill the housing 110 with fluid. It will be appreciated that the gas filled in the housing 110 may be air or pure oxygen, and the oxygen and the gas are mixed and then delivered to the combustion part through the first gas delivery pipe 161 and the second gas delivery pipe 162, so that the gas can be fully combusted.

In some embodiments, the regulating valve 150 includes a movable core and a fixed core, the fixed core is fixedly connected with the housing 110, the movable core can be far away from or close to the fixed core, when the regulating valve 150 is located at the first position, the movable core is attracted to the fixed core, the regulating valve 150 is in an attracted state, the third chamber 113 is communicated with the second chamber 112, and fluid enters the housing 110 from the third chamber 113; when the regulating valve 150 is at the second position, the movable core is separated from the fixed core, the regulating valve 150 is in a separated state, and the movable core seals the connection position of the second chamber 112 and the third chamber 113 to prevent gas leakage. Fig. 7 shows an example of the lever 140, in which the valve core needle assembly 120 pushes the trigger end to rotate the lever 140, and during the rotation of the lever 140, the contact end pushes the moving core of the regulator valve 150 to move toward the fixed core, so that the moving core is engaged with the fixed core, thereby filling the housing 110 with air. Of course, the movement of the lever 140 may be linear or telescopic, and only one example of the lever 140 is provided herein, and the movement of the lever 140 is not limited.

As shown in fig. 2, during ignition, the valve core needle assembly 120 moves rightward, the second elastic member 132 contacts the trigger end and pushes the trigger end to move, thereby driving the shift lever 140 to move integrally. The second elastic member 132 is deformed during pushing of the trigger end. As shown in fig. 3, the contact end abuts against the regulator valve 150, and the contact end moves and pushes the regulator valve 150 upward to the first position under the driving of the spool needle assembly 120, and the fluid enters the third chamber 113 and flows to the second chamber 112 and the first chamber 111. After the ignition is completed, the spool needle assembly 120 moves leftwards under the driving of the first elastic member 131, and the second elastic member 132 resumes its shape.

It should be noted that, when the user presses the valve core needle assembly 120 to perform ignition, the pressure applied by the user is not fixed, the movement stroke of the valve core needle assembly 120 is also not fixed, and when the pressing force is larger, a larger impact force is generated between the valve core needle assembly 120 and the trigger end, between the contact end and the regulating valve 150, and the movement stroke of the valve core needle assembly 120 is increased, which causes extrusion to the deflector rod 140 and the regulating valve 150, and easily loosens or damages the deflector rod 140 and the regulating valve 150. Through setting up second elastic component 132 at the second end of case needle subassembly 120, in pressing the ignition of case needle subassembly 120, can absorb the unnecessary stroke of case needle subassembly 120 through second elastic component 132 deformation, reduce the impact, avoid excessively squeezing driving lever 140 and governing valve 150, play the effect of protection.

In the related art, the contact end of the deflector rod is of a deformable structure, and the contact end deforms to absorb impact force in the process of pushing the regulating valve by the contact end, but the deflector rod has a complex structure, and the deflector rod relates to a plurality of parts and needs special design and production, is not easy to assemble and is inconvenient to maintain in the later period; in addition, in order to be in contact fit with the contact end, one end of the regulating valve needs to be increased in length, the conventional regulating valve needs to be modified or the special regulating valve is manufactured, the universality of materials is low, and the cost is increased. In the present application, the second elastic member 132 is disposed at the second end of the valve core needle assembly 120 to absorb the impact force of the ignition process and the redundant travel of the valve core needle assembly 120, so that the related deformable structure is not required to be disposed on the shift lever 140, and the structure of the shift lever 140 is simplified, thereby simplifying the structure of the plug valve 100 and simplifying the assembly process; in addition, the adjusting valve 150 does not need to be adaptively designed, the universality of materials is good, and the cost is reduced.

According to the plug valve 100 of the embodiment of the utility model, the second elastic member 132 is arranged at the second end of the valve core needle assembly 120, so that the second elastic member 132 deforms to absorb the redundant travel of the valve core needle assembly 120 in the ignition process, absorb the impact force, and avoid over-extrusion of the deflector 140 and the regulating valve 150 to play a role in protection. Compared with the prior art, the structure of the shift lever 140 is simplified, and the plug valve 100 has the advantages of simplified structure and simple assembly process; and the adjusting valve 150 does not need to be adaptively designed, so that the material universality is good, and the cost is reduced.

According to some embodiments of the utility model, the second end is provided with a connecting post 123, and one end of the second elastic member 132 is sleeved on the connecting post 123 and connected with the connecting post 123. As shown in fig. 6, in some embodiments, the second elastic member 132 may be a spring, the outer peripheral surface of the connecting post 123 is provided with an annular fixing protrusion 124, one end of the second elastic member 132 is sleeved on the fixing protrusion 124, and the diameter of the fixing protrusion 124 may be slightly larger than the inner diameter of the second elastic member 132, so that the fixing protrusion 124 and the second elastic member 132 are in interference fit to fix the second elastic member 132.

Referring to fig. 2, according to some embodiments of the utility model, a spool needle assembly 120 includes a valve stem 121 and a valve needle 122. One end of the valve rod 121 is located in the housing 110, the other end of the valve rod 121 is located outside the valve rod 121, and the valve rod 121 is movable in its own length direction with respect to the housing 110. The valve needle 122 is located in the housing 110, one end of the valve needle 122 is connected to one end of the valve stem 121, and the other end of the valve needle 122 is connected to the second elastic member 132. When the user presses the valve rod 121 by pressing the other end of the valve rod 121 to perform ignition, the valve rod 121 drives the valve needle 122 to move towards the trigger end of the deflector rod 140, so as to drive the deflector rod 140 to move and push the regulating valve 150 to move towards the first position. Further, the gas flow in the housing 110 may be adjusted by rotating the valve stem 121. The other end of the valve stem 121 may be provided with a knob to facilitate user operation.

Referring to fig. 5 and 6, the second end of the valve needle assembly 120 is located on the valve needle 122, the connecting post 123 is located at the other end of the valve needle 122, the second elastic member 132 may be a spring, the connecting post 123 may be cylindrical, and a positioning protrusion is disposed on an outer peripheral wall of the connecting post 123 and abuts against the second elastic member 132 to axially position the second elastic member 132. It can be appreciated that the second elastic member 132 protrudes from the connection post 123 in the axial direction, and when the trigger end is pushed, the second elastic member 132 contacts the trigger end and deforms.

Referring to fig. 7, a lever 140 includes a lever body 141, a trigger arm 142, and a contact arm 143, according to some embodiments of the present utility model. The lever 140 is rotatable relative to the housing 110, and the lever body 141 is rotatably connected to the housing 110. The trigger arm 142 is disposed at one end of the rod 141, and the trigger arm 142 may be connected to an end surface of the rod 141 or may be connected to a circumferential surface of the rod 141. The trigger arm 142 is disposed opposite the second end. As shown in fig. 2, the trigger arm 142 is disposed opposite the spool needle assembly 120, one side of the trigger arm 142 may be opposite the second end, and the second elastic member 132 pushes the trigger arm 142 to move when the spool needle assembly 120 moves rightward. And the extending direction of the trigger arm 142 is different from the length direction of the rod 141, for example, the trigger arm 142 may extend in a direction perpendicular to the length direction of the rod 141. Thus, the second end pushes the trigger arm 142 to rotate the lever 141.

As shown in fig. 7, the contact arm 143 is provided at the other end of the rod 141, and the contact arm 143 may be connected to the end surface of the rod 141 or may be connected to the circumferential surface of the rod 141. The contact arm 143 is adapted to abut the regulator valve 150 to urge the regulator valve 150 into movement. By holding the contact arm 143 against the regulator valve 150, collision of the contact arm 143 with the regulator valve 150 during ignition can be avoided, and the operating feel during ignition can be made better. The extending direction of the contact arm 143 is different from the length direction of the rod body 141, for example, the contact arm 143 may extend in a direction perpendicular to the length direction of the rod body 141. The lever body 141 rotates to drive the contact arm 143 to move so as to push the regulating valve 150, so that the linear motion of the valve core needle assembly 120 is converted into the rotation of the deflector rod 140 and then into the linear motion of the regulating valve 150, the movement space required by the deflector rod 140 is reduced, and the volume of the plug valve 100 is reduced.

In some embodiments, the contact arm 143 is non-parallel to the trigger arm 142. As shown in fig. 7, the contact arm 143 and the trigger arm 142 are provided on the circumferential surface of the rod body 141, and the contact arm 143 is not parallel to the extending direction of the trigger arm 142. In this way, when the shift lever 140 rotates, the tangential movement direction of the contact arm 143 is different from the tangential movement direction of the trigger arm 142, so that the positions of the spool needle assembly 120 and the regulating valve 150 are conveniently laid out, and the spool needle assembly 120 and the regulating valve 150 are prevented from being arranged in the same direction, so that the size of the plug valve 100 in the direction is prevented from being oversized. In the example of fig. 7, the contact arm 143 and the trigger arm 142 are provided on the outer peripheral surface of the rod body 141, and the extending direction of the contact arm 143 and the extending direction of the trigger arm 142 form an acute angle therebetween. Thus, referring to fig. 3, the spool needle assembly 120 and the regulating valve 150 may be vertically disposed at this time, and the size of the plug valve 100 in the vertical direction is reduced by using the space in the horizontal direction.

Referring to fig. 7, according to some embodiments of the present utility model, the contact arm 143 includes a connection portion 1431 and a contact portion 1432, and referring to fig. 7, the contact portion 1432 is adapted to be abutted against the regulating valve 150, one end of the connection portion 1431 is connected to the rod body 141, the other end of the connection portion 1431 is connected to the contact portion 1432, and the contact portion 1432 is inclined toward the rod body 141 such that an angle greater than 0 ° and less than 180 ° is formed between the connection portion 1431 and the contact portion 1432. During ignition, lever 140 is rotated and contact portion 1432 is held in contact with regulator valve 150, and contact portion 1432 may extend from second chamber 112 into third chamber 113 to urge regulator valve 150 to the first position. In some embodiments, the contact 1432 is inclined in the same direction as the lever 140 rotates during ignition, i.e., the contact 1432 is adapted to be inclined toward the regulator valve 150.

Referring to fig. 3, according to some embodiments of the present utility model, plug valve 100 further includes a reset member 151, wherein reset member 151 is configured to drive the regulator valve 150 to move to the second position. The reset piece 151 may be a spring, the reset piece 151 may be sleeved between the moving core and the fixed core of the regulating valve 150, and when the moving core and the fixed core are attracted, the reset piece 151 is compressed and generates elastic force; when the movable core and the fixed core are released from the attraction, the reset piece 151 drives the movable core to be far away from the fixed core. After the valve rod 121 is pressed to ignite, the valve rod 121 is loosened, the first elastic piece 131 drives the valve rod 121 to reset, and meanwhile, the valve rod 121 drives the valve needle 122 to reset, and the valve core needle assembly 120 is separated from the trigger end; and the regulator valve 150 is energized, the movable core and the fixed core remain engaged. After flameout, the regulating valve 150 is powered off, the movable core is released from the fixed core, the movable core moves downwards (in the direction shown in fig. 3) under the driving of the reset piece 151, and the movable core pushes the contact end to move, so that the shift lever 140 rotates to reset. The reset piece 151 drives the regulating valve 150 to reset and drives the deflector rod 140 to reset, so that the deflector rod 140 can keep contact with the regulating valve 150, and collision caused by separation of the deflector rod 140 and the regulating valve 150 during ignition is avoided; and no special resetting device is required for the deflector rod 140, thereby simplifying the structure of the plug valve 100.

Referring to fig. 3, according to some embodiments of the present utility model, the return member 151 is a spring, and the elastic coefficient of the return member 151 is equal to or less than that of the second elastic member 132. Thus, the deformation resistance of the second elastic member 132 is greater than that of the return member 151. During the ignition process, the deformation of the second elastic piece 132 is smaller, so that the movement stroke of the valve core needle assembly 120 during the ignition process is stable; when the valve rod 121 is continuously pressed after the regulator valve 150 reaches the first position, the second elastic member 132 generates resistance against the movement of the valve rod 121. The elastic coefficient here is determined by the structural parameters such as the number of turns, the inner diameter, the outer diameter, the wire diameter, and the like.

According to some embodiments of the present utility model, when the regulator valve 150 is in the second position, the second elastic member 132 is spaced apart from the trigger end, such that the needle assembly 120 has an idle stroke. Referring to fig. 2, the second elastic member 132 is spaced from the trigger arm 142 by a certain distance, and when the valve needle assembly 120 moves by a certain distance during ignition, the second elastic member 132 contacts the trigger end and pushes the trigger end to move, so that the movement of the regulating valve 150 to the first position caused by false triggering is avoided, and the probability of gas leakage is reduced. When the regulating valve 150 is located at the second position, the contact end is suitable for being abutted against the regulating valve 150, and when the valve core needle assembly 120 pushes the deflector rod 140 to rotate, the contact end pushes the regulating valve 150 to move, and no idle stroke exists at the contact end, so that the movement stroke of the valve core needle assembly 120 is stable during ignition.

A combustion apparatus according to an embodiment of the present utility model includes a plug valve 100 as described above. The combustion apparatus further includes a combustion element coupled to the plug valve 100, the plug valve 100 for controlling a flow rate of the fuel gas flowing to the combustion element. The fuel gas is mixed with air by the plug valve 100 and then delivered to the combustion element, and burned on the combustion element. By arranging the second elastic member 132 at the second end of the valve core needle assembly 120, during the ignition process, the second elastic member 132 deforms to absorb the redundant travel of the valve core needle assembly 120, absorb the impact force, avoid excessive extrusion of the deflector rod 140 and the regulating valve 150, and play a role in protection. Compared with the prior art, the structure of the deflector rod 140 is simplified, and the assembly process is simplified; the adjusting valve 150 does not need to be adaptively designed, so that the material universality is good, and the cost is reduced.

The gas stove comprises the combustion device. Wherein, the combustion part of the combustion device is a furnace end.

To facilitate an understanding of the structure of the plug valve 100 of the present application, the following provides the operation of one embodiment of the plug valve 100:

As shown in fig. 2, the valve rod 121 is pressed rightward to ignite, the valve rod 121 drives the valve needle 122 to move rightward, and the first elastic member 131 is compressed; the second elastic member 132 contacts the trigger arm 142 after the needle 122 moves rightward a distance; at this time, the valve rod 121 is continuously pressed rightward, the second elastic member 132 is compressed, the second elastic member 132 pushes the trigger arm 142 to move rightward, and the rod body 141 rotates clockwise. As shown in fig. 3, the lever body 141 rotates clockwise to move the contact arm 143 upward, thereby pushing the moving core of the regulating valve 150 to approach and contact the fixed core, the regulating valve 150 moves to the first position, the reset member 151 is compressed, and the regulating valve 150 is powered to keep the moving core and the fixed core in attraction. At this time, the fluid enters the housing 110 from the third chamber 113.

After the ignition is completed, the valve stem 121 is released, and the valve stem 121 and the valve needle 122 are moved to the left to restore the position by the actuation of the first elastic member 131, and the second elastic member 132 is extended and restored to the shape, as shown in fig. 2. While the regulator valve 150 remains in the first position and the position of the lever 140 remains.

As shown in fig. 3, when flameout occurs, the regulating valve 150 is powered off, and the movable core moves downward to the connection position of the second chamber 112 and the third chamber 113 under the driving of the reset element 151, and the connection position of the second chamber 112 and the third chamber 113 is blocked, so that gas leakage is avoided. At the same time, the moving core pushes the contact arm 143 to move downward, so that the rod body 141 rotates counterclockwise. As shown in fig. 2, counterclockwise rotation of lever 141 causes trigger arm 142 to move to the left and contact arm 143 to resume the pre-firing position.

Finally, it should be noted that the above-mentioned embodiments are merely illustrative of the utility model, and not limiting. While the utility model has been described in detail with reference to the embodiments, those skilled in the art will appreciate that various combinations, modifications, or equivalent substitutions can be made to the technical solutions of the present utility model without departing from the spirit and scope of the technical solutions of the present utility model, and the present utility model is intended to be covered by the scope of the present utility model.

Claims (12)

1. A plug valve (100), comprising:

A housing (110);

A spool needle assembly (120), the spool needle assembly (120) being inserted into the housing (110), and the spool needle assembly (120) being movable relative to the housing (110) along its length, the spool needle assembly (120) having opposite first and second ends;

the first elastic piece (131) is connected with the valve core needle assembly (120), and the first elastic piece (131) is used for driving the valve core needle assembly (120) to reset;

A second elastic member (132), wherein the second elastic member (132) is arranged at the second end of the valve core needle assembly (120), and the second elastic member (132) can be elastically deformed;

a lever (140), the valve core needle assembly (120) being adapted to push the lever (140) into movement, the lever (140) having a trigger end and a contact end, the trigger end being opposite the second resilient member (132);

The regulating valve (150), governing valve (150) are located in casing (110), governing valve (150) have first position and second position, the contact end with governing valve (150) offset, driving lever (140) are used for driving governing valve (150) to first position motion, governing valve (150) are located when the first position, governing valve (150) are in the open valve state, governing valve (150) are located when the second position, governing valve (150) are in the closed valve state.

2. The plug valve (100) of claim 1, further comprising a reset member (151), the reset member (151) configured to drive the regulator valve (150) toward the second position.

3. The plug valve (100) according to claim 2, wherein the return member (151) is a spring, and the spring constant of the return member (151) is less than or equal to the spring constant of the second elastic member (132).

4. The plug valve (100) according to claim 1, wherein the second end is provided with a connecting post (123), and one end of the second elastic member (132) is sleeved on the connecting post (123) and is connected with the connecting post (123).

5. The plug valve (100) according to claim 4, wherein the second elastic member (132) is a spring, the connecting post (123) is provided with an annular fixing protrusion (124), the diameter of the fixing protrusion (124) is slightly larger than the inner diameter of the second elastic member (132), and the end portion of the second elastic member (132) is sleeved on the fixing protrusion (124).

6. The plug valve (100) of claim 4, wherein the spool needle assembly (120) comprises:

A valve rod (121), wherein one end of the valve rod (121) is positioned in the shell (110), the other end of the valve rod (121) is positioned outside the valve rod (121), and the valve rod (121) is movable relative to the shell (110) along the length direction of the valve rod;

The valve needle (122), valve needle (122) are located in casing (110), one end of valve needle (122) with the one end of valve rod (121) is connected, spliced pole (123) are located the other end of valve needle (122).

7. The plug valve (100) of claim 1, wherein the second resilient member (132) is spaced from the trigger end when the regulator valve (150) is in the second position.

8. The plug valve (100) of claim 1, wherein the lever (140) is rotatably disposed within the housing (110), the lever (140) comprising:

A rod body (141);

The trigger arm (142) is arranged at one end of the rod body (141), the extending direction of the trigger arm (142) is different from the length direction of the rod body (141), and the trigger arm (142) is arranged opposite to the second end;

And the contact arm (143) is arranged at the other end of the rod body (141), the extending direction of the contact arm (143) is different from the length direction of the rod body (141), and the contact arm (143) is suitable for being propped against the regulating valve (150).

9. The plug valve (100) according to claim 8, wherein the contact arm (143) and the trigger arm (142) are provided on the outer peripheral surface of the rod body (141), and an acute angle is formed between an extending direction of the contact arm (143) and an extending direction of the trigger arm (142).

10. The plug valve (100) according to claim 8, wherein the contact arm (143) includes a connection portion (1431) and a contact portion (1432), one end of the connection portion (1431) is connected to the rod body (141), the other end of the connection portion (1431) is connected to the contact portion (1432), and the contact portion (1432) is inclined toward the rod body (141), the contact portion (1432) being adapted to abut against the regulating valve (150).

11. A combustion apparatus, comprising:

a combustion member at which the fuel gas is combusted;

a plug valve (100), the plug valve (100) being a plug valve (100) according to any one of claims 1-10, the plug valve (100) being connected and in communication with the combustion element for regulating the flow of fuel gas.

12. A gas range comprising the combustion apparatus of claim 11.