CN213711940U - Plug valve and stove - Google Patents

Abstract

The utility model belongs to the technical field of gas input control adjusting device, a plug valve and cooking utensils are disclosed. The plug valve comprises a valve body, a valve core arranged in the valve body and a valve rod connected with the valve core; the positioning assembly comprises a positioning protrusion and a positioning groove; the valve core is driven by the valve rod to rotate relative to the positioning component connected with the valve body, and the positioning of the valve core is realized through the limit matching of the positioning protrusion and the positioning groove. The stove comprises the plug valve. The utility model provides a firepower of cooking utensils is difficult to the problem repeated and reappear among the prior art.

Description

Plug valve and stove

Technical Field

The utility model belongs to the technical field of gas input control adjusting device, concretely relates to plug valve and cooking utensils.

Background

The plug valve of the household gas appliance commonly used in the household gas cooker on the market at present generally comprises a valve body, a valve core arranged in an inner cavity of the valve body and a valve rod connected with the upper end of the valve core, as shown in fig. 1-6. The valve rod is connected with a knob arranged on the panel of the kitchen range. When the fire-adjusting valve is used, the valve rod can be driven by operating the knob, and then the valve core is driven to rotate relative to the valve shell, so that the purpose of adjusting the fire of a cooker is achieved.

Generally, the valve core is rotated counterclockwise to a position of 90 degrees, as shown in fig. 7(a), the valve is opened, the hole positions of the air inlet channel, the outer ring air outlet channel and the inner ring air outlet channel of the valve body are consistent with the hole positions of the air inlet hole, the outer ring air outlet hole and the inner ring air outlet hole of the valve core, the gas channel is maximized, and the flame burned by the burner is maximized at the same time.

As shown in fig. 7(b), the knob is continuously rotated counterclockwise, the hole positions of the air inlet hole and the outer ring air outlet hole of the valve core and the air inlet channel and the outer ring air outlet channel of the valve body are reduced in dislocation, and the gas flow is reduced through the gas channel, so that the firepower of flame burning of the burner is reduced.

As shown in fig. 7(c), the knob is continuously rotated counterclockwise, so that the outer ring air outlet channel of the valve core and the outer ring air outlet channel of the valve body are completely staggered, the outer ring fire is completely free from gas supply, and the burner only burns with the inner ring fire. When the knob is continuously rotated anticlockwise until the limit position, the gas inlet channel is minimum, the hole positions of the outer ring gas outlet channel are completely staggered to disconnect the outer ring gas outlet channel, the gas flow of the gas inlet channel is converted into the gas flow of the inner ring channel, the gas inlet channel is minimum, the inner ring gas outlet channel is also minimum, and the flame power of the inner ring of the combustor is also minimum.

When the user needs to adjust the fire power, the user usually turns the knob counterclockwise and then turns the knob clockwise again, as shown in fig. 8(a) and 8(b), to find the fire power suitable for cooking. When the valve body rotates clockwise to a limit position, as shown in fig. 8(c), the air inlet hole of the valve core and the gas inlet channel of the valve body are completely staggered, the gas outlet channel of the gas outer ring of the valve body is cut off, the gas of the gas outlet channel of the gas inner ring is cut off, and the stove is flamed out.

However, the existing knob can smoothly adjust the fire power when rotating, and once the knob is rotated too fast, the flames of the inner ring and the outer ring are uneven, so that the flames are easily extinguished, and the use is influenced. In addition, in the cooking process, because the firepower adjustment is stepless, when some special firepower (such as middle fire, the firepower is not the maximum but can not be too small) is used, a user can only rotate the knob and adjust the ideal firepower by observing the flame size with a head down, the firepower can not be repeated and reproduced, the inconvenience in use is brought to the user, and the user experience degree is reduced.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that firepower of cooking utensils is difficult to repeat and reappear in the prior art, the utility model provides a plug valve.

The utility model also provides a cooking utensils of using above-mentioned plug valve.

The utility model discloses an adopt following scheme to realize:

a plug valve comprises a valve body, a valve core arranged in the valve body and a valve rod connected with the valve core; the positioning assembly comprises a positioning protrusion and a positioning groove;

the valve core is driven by the valve rod to rotate relative to the positioning component connected with the valve body, and the positioning of the valve core is realized through the limit matching of the positioning protrusion and the positioning groove.

It is right the utility model discloses a plug valve's further improvement part lies in, the location protruding locate with the case cooperation is connected on the lateral wall of valve body, it is corresponding positioning groove locates on the case.

It is right the utility model discloses a plug valve's further improvement part lies in, the location arch is the ball, be equipped with the mounting hole on the valve body, the ball roll mounting is in the mounting hole.

The plug valve of the utility model is further improved in that the positioning component also comprises an elastic part; the elastic piece is arranged in the mounting hole, connected with the positioning protrusion and used for enabling the positioning protrusion to jack against the positioning groove to realize the limiting connection of the positioning protrusion and the positioning groove.

The plug valve of the present invention is further improved in that the positioning assembly further comprises a fastener, wherein the fastener is connected to the elastic member for fixing and compressing the elastic member.

The plug valve of the utility model is further improved in that the number of the positioning grooves is multiple; the positioning grooves are arranged around the same circumference of the valve core at intervals.

It is right the utility model discloses a plug valve's further improvement part lies in, and is a plurality of positioning groove locates the inlet port of case with between the venthole of case.

The further improvement of the plug valve of the utility model is that the valve core or the valve body is also provided with a chute; the sliding groove is formed in the circumferential direction of the valve core in a surrounding mode, and the positioning groove is formed in the sliding groove.

The cock valve of the utility model is further improved in that the axial cross section of the chute is of a V-shaped structure.

The cock valve of the utility model is further improved in that the air inlet is communicated with the gas inlet channel of the valve body, and the air outlet is communicated with the gas outlet channel of the valve body; the valve core is also provided with an adjusting hole for adjusting the gas inlet quantity or the gas outlet quantity;

the air inlet hole, the air outlet hole and the adjusting hole are arranged around the same circumference of the valve core; the area of the cross section of the adjusting hole is smaller than that of the cross section of the air inlet hole and that of the cross section of the air outlet hole.

The cock valve of the utility model is further improved in that the valve body comprises an outer ring gas outlet channel and an inner ring gas outlet channel;

the gas outlet channel is the outer ring gas outlet channel; and a gas channel is axially arranged in the valve core, the gas channel is communicated with the gas inlet hole, the gas outlet hole and the adjusting hole, and the gas channel is communicated with the inner ring gas outlet channel.

The utility model also provides a cooker, which comprises a cooker body and the plug valve; the plug valve is installed on the stove body.

Compared with the prior art, adopt above-mentioned scheme the beneficial effects of the utility model are that:

when ordering about the valve rod through the knob and rotate, and then drive the case when rotating for the valve body, when adjusting the firepower promptly, the case just rotates for the locating component who is connected with the valve body so, when the case rotated to make the protruding spacing in positioning groove in location, the user felt the effect of card pause for the case is fixed a position here, ensures that the firepower is stable, simultaneously effectual solved among the prior art firepower of cooking utensils and be difficult to repeat and the problem that reappears.

The utility model discloses a cooking utensils can solve the firepower of cooking utensils among the prior art at least and be difficult to the problem repeated and reappear.

Drawings

FIG. 1 is a perspective view of a prior art plug valve;

FIG. 2 is a schematic front view of the structure of FIG. 1;

FIG. 3 is a schematic left side view of the structure of FIG. 1;

FIG. 4 is a schematic top view of the structure of FIG. 1;

FIG. 5 is a cross-sectional view of section A-A of FIG. 2;

FIG. 6 is an enlarged schematic view of FIG. 5 at II;

FIG. 7(a) is a state diagram of the valve core position after the valve core of the plug valve in FIG. 1 is rotated 90 degrees counterclockwise, at this time, the inner ring and the outer ring have the largest firepower, the arrow inside the valve core represents the gas flow direction, and the arrow outside the valve core represents the valve core rotation direction;

fig. 7(b) is a state diagram of the valve core position after the valve core of the plug valve in fig. 1 is rotated counterclockwise by 135 degrees, at this time, the middle fire power (inner ring is large fire, outer ring is small fire), the arrow inside the valve core represents the gas flow direction, and the arrow outside the valve core represents the valve core rotation direction;

FIG. 7(c) is a state diagram of the valve core position after the valve core of the plug valve in FIG. 1 is rotated by 170 degrees counterclockwise, at this time, the inner ring has the minimum fire, the outer ring has no fire, the arrow inside the valve core represents the gas flow direction, and the arrow outside the valve core represents the valve core rotation direction;

FIG. 8(a) is a state diagram of the valve core position of the plug valve in FIG. 1 after the valve core is rotated 90 degrees counterclockwise and then rotated 45 degrees clockwise, at this time, the inner ring and the outer ring are general fire power, the arrow inside the valve core represents the gas flow direction, and the arrow outside the valve core represents the valve core rotation direction;

FIG. 8(b) is a state diagram of the valve core position of the plug valve in FIG. 1 after the valve core is rotated 90 degrees counterclockwise and then rotated 60 degrees clockwise, wherein both the inner ring and the outer ring have small fire, the arrow inside the valve core represents the gas flow direction, and the arrow outside the valve core represents the valve core rotation direction;

FIG. 8(c) is a state diagram of the valve core of the plug valve in FIG. 1, wherein the valve core is rotated 90 degrees counterclockwise and then 65 degrees clockwise, and the position of the valve core is changed, at this time, the inner ring and the outer ring are extinguished, and the arrow outside the valve core represents the rotation direction of the valve core;

fig. 9 is a schematic cross-sectional structural view of a plug valve according to an embodiment of the present invention;

FIG. 10 is an enlarged view of the structure at I in FIG. 9;

fig. 11 is a schematic structural diagram of a valve element of a plug valve according to an embodiment of the present invention;

FIG. 12 is a cross-sectional view taken at section E-E of FIG. 11;

FIG. 13 is an enlarged schematic view of FIG. 12 at III;

FIG. 14 is a cross-sectional view of section F-F of FIG. 11;

fig. 15 is a state diagram of a plug valve according to an embodiment of the present invention, in an initial position;

FIG. 16(a) is a state diagram of the valve core of the plug valve in FIG. 9 rotated 90 degrees counterclockwise, the position of the valve core, and the assembly relationship diagram between the valve core and the positioning assembly, wherein the inner ring and the outer ring have the largest firepower, the arrow inside the valve core represents the gas flow direction, and the arrow outside the valve core represents the rotation direction of the valve core;

FIG. 16(b) is a diagram showing a state in which the valve element of the plug valve in FIG. 9 is rotated counterclockwise by 115 degrees, the position of the valve element, and the assembly relationship between the valve element and the positioning member, in which middle fire (inner ring fire, outer ring fire of normal size), an arrow inside the valve element represents a gas flow direction, and an arrow outside the valve element represents a valve element rotation direction;

FIG. 16(c) is a state diagram of the plug valve of FIG. 9 with the valve element rotated 145 degrees counterclockwise, the position of the valve element, and the assembly relationship between the valve element and the positioning assembly, wherein the middle fire power (inner ring big fire, outer ring small fire), the arrow inside the valve element represents the gas flow direction, and the arrow outside the valve element represents the valve element rotation direction;

FIG. 16(d) is a state diagram of the plug valve of FIG. 9 with the valve core rotated counterclockwise by 170 degrees, the position of the valve core, and the assembly relationship between the valve core and the positioning assembly, wherein the outer ring is free of fire, the inner ring is least fire, the arrow inside the valve core represents the gas flow direction, and the arrow outside the valve core represents the valve core rotation direction;

FIG. 17(a) is a state diagram of the plug valve of FIG. 9 after the valve core is rotated 90 degrees counterclockwise and then rotated 30 degrees clockwise, and an assembly relationship diagram between the valve core and the positioning component, wherein the firepower of the inner ring and the outer ring is reduced to the maximum, the arrow inside the valve core represents the gas flow direction, and the arrow outside the valve core represents the valve core rotation direction;

fig. 17(b) is a state diagram of the valve core of the plug valve in fig. 9, which is rotated 90 ° counterclockwise and then rotated 60 ° clockwise, and an assembly relationship diagram between the valve core and the positioning assembly, wherein the firepower of the inner ring and the outer ring is minimum, the arrow inside the valve core represents the gas flow direction, and the arrow outside the valve core represents the valve core rotation direction.

In the figure: 1. a valve body; 2. a valve core; 3. a valve stem; 4. a positioning assembly; 5. a knob; 11. a gas inlet channel; 12. an inner ring gas outlet channel; 13. a gas outlet channel; 21. a pocket; 22. an air inlet; 23. an air outlet; 24. an adjustment hole; 41. a ball bearing; 42. an elastic member; 43. a fastener.

Detailed Description

In order to make the above objects, features, advantages, etc. of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "axial", "radial", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The meaning of "plurality" is two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The present plug valve includes a valve body 1, a valve element 2 disposed in the valve body 1, and a valve stem 3 connected to the valve element 2. When the fire-extinguishing valve is used specifically, a user drives the valve rod 3 to drive the valve core 2 to rotate relative to the valve body 1 through the rotary knob 5, so that the fire of a stove is turned off and on, and the fire power is adjusted, wherein the adjusting process of the fire power is shown in fig. 7 and 8.

The plug valve of the present disclosure further includes a positioning assembly 4, as shown in fig. 9 and 10, the positioning assembly 4 includes a positioning protrusion 41 and a positioning groove 42;

the valve core 2 is driven by the valve rod 3 to rotate relative to the positioning component 4 connected with the valve body 1, and the valve core 2 is positioned by the limiting matching of the positioning protrusion 41 and the positioning groove 42.

When the valve rod 3 is driven to rotate by the knob 5 and the valve core 2 is driven to rotate relative to the valve body 1, namely, when the firepower is adjusted, the valve core 2 rotates relative to the positioning component 4 connected with the valve body 1, when the valve core 2 rotates to enable the positioning protrusion 41 to be limited in the positioning groove 42, the hand of a user at the knob 5 feels the blocking effect, the valve core 2 is positioned at the position, the firepower is ensured to be stable, and meanwhile, the problem that the firepower of a cooker in the prior art is difficult to repeat and reappear is effectively solved.

To release the positioning of the valve body 2, the user needs to increase the force for screwing the knob 5 to disengage the positioning protrusion 41 from the positioning groove 41.

In addition, the positioning boss 41 can increase the rotation resistance of the valve core 2, so that the valve core 2 also has a certain positioning function, and the fire power change caused by the automatic rotation of the valve core 2 is avoided.

Preferably, when the positioning protrusion 41 is in limit connection with the positioning groove 42, the firepower is middle firepower, so that the firepower can be adjusted through blind operation by a user, and the firepower meets the cooking requirement.

Further, the positioning protrusion 41 is disposed on the side wall of the valve body 1 that is connected to the valve core 2, and the corresponding positioning groove 42 is disposed on the valve core 2.

Furthermore, the positioning protrusion 41 is a ball, and the valve body 1 is provided with a mounting hole, and the ball is roll-mounted in the mounting hole. The balls are roll-mounted in the mounting holes to ensure that the balls do not affect the rotation of the spool 2 and to reduce friction between the balls and the spool 2.

Further, the positioning assembly 4 further includes an elastic member 43; the elastic piece 43 is arranged in the mounting hole and connected with the positioning protrusion 41, and is used for enabling the positioning protrusion 41 to prop against the positioning groove 42 to realize the limit connection between the positioning protrusion 41 and the positioning groove 42.

When the positioning protrusion 41 is directly abutted against the side wall of the valve core 2, the side wall of the valve core 2 has pressure on the side wall, so that the elastic member 43 is compressed, and once the positioning protrusion 41 is opposite to the positioning groove 42, the pressure of the valve core 2 on the positioning protrusion 41 is reduced, so that the elastic member 43 pushes the positioning protrusion 41 to the positioning groove 42 along the mounting hole, and thus, the limiting connection between the positioning protrusion 41 and the positioning groove 42 is realized.

When the valve core 2 is continuously rotated, the pressure of the valve core 2 on the positioning protrusion 41 is increased, the elastic member 43 is compressed, and the positioning protrusion 41 is driven to move towards the direction departing from the valve core 2, so that the valve core 2 can smoothly rotate in the valve body 1 to realize firepower adjustment.

Preferably, the elastic member 43 is a spring.

Further, the positioning assembly 4 further includes a fastening member 44, and the fastening member 44 is connected to the elastic member 43 for fixing the compression elastic member 43.

As the service life is prolonged and the deformation amount is equal, the elastic force of the elastic member 43 is reduced, so in order to ensure that the elastic force of the elastic member 43 always meets the requirement of pushing the positioning protrusion 41 into the positioning groove 42, the elastic member 43 needs to be compressed by the fastening member 44 to increase the deformation amount of the elastic member 43 and increase the elastic force.

In the present embodiment, as shown in fig. 9 and 10, a mounting hole is radially opened on the side wall of the valve body 1, the elastic member 43 is mounted in the mounting hole, and one end of the elastic member 43 is connected with the positioning protrusion 41 for driving the positioning protrusion 41 to move radially; the other end of the elastic member 43 is connected to a fastening member 44, and the fastening member 44 is threadedly mounted in the mounting hole. The corresponding valve core 2 is provided with a positioning groove 42. When the positioning protrusion 41 is limited in the positioning groove 42, the positioning of the valve core 2 is realized.

Preferably, the fasteners 44 are pan head screws.

Further, the number of the positioning grooves 42 is plural; a plurality of positioning grooves 42 are provided around the same circumference of the spool 2, as shown in fig. 11 to 14.

Preferably, as shown in fig. 12, a plurality of positioning grooves 42 are provided between the intake port 22 of the valve body 2 and the exhaust port 23 of the valve body 2 in order to change the fire power between the extinction and the maximum fire power and to fix the fire power.

Further, a sliding groove is also formed in the valve core 2; the chute is arranged around the circumference of the valve core 2, and the positioning groove 42 is arranged in the chute. The slide groove is for better engagement with the positioning projection 41 as shown in fig. 11.

Preferably, the axial cross section of the sliding chute is of a V-shaped structure.

Further, the air inlet hole 22 is communicated with the fuel gas inlet channel 11 of the valve body 1, and the air outlet hole 23 is communicated with the fuel gas outlet channel 13 of the valve body 1; the valve core 2 is also provided with an adjusting hole 24 for adjusting the gas inlet quantity or the gas outlet quantity;

the air inlet hole 22, the air outlet hole 23 and the adjusting hole 24 are arranged around the same circumference of the valve core 2; the area of the cross section of the regulation hole 24 is smaller than that of the cross section of the intake hole 22 and also smaller than that of the cross section of the exhaust hole 23.

The process of adjusting the gas inlet amount and the gas outlet amount by the adjusting holes 24 is shown in fig. 7, 8 and 15-17.

Further, the valve body 1 comprises an outer ring gas outlet channel and an inner ring gas outlet channel 12;

the gas outlet channel 13 is an outer ring gas outlet channel; the valve core 2 is internally and axially provided with a gas channel, the gas channel 25 is communicated with the gas inlet 22, the gas outlet 23 and the adjusting hole 24, and the gas channel 25 is communicated with the inner ring gas outlet channel 12.

The using process of the embodiment is as follows:

when the knob 5 is in the fire-off state, the positional relationship between the valve core 2 and the gas inlet channel 11 and the gas outlet channel 13 (i.e. the outer ring gas outlet channel) is as shown in fig. 15.

A user rotates the knob 5 anticlockwise, rotates the knob 5 anticlockwise by 90 degrees, as shown in fig. 16(a), the positioning protrusion 41 is limited in the positioning groove 42, at this time, the gas inlet channel 11 is communicated with the gas inlet hole 22, and the overlapped area is the largest, that is, the gas inlet amount is the largest; meanwhile, the overlapping area of the gas outlet holes 23 and the gas outlet channel 13 (outer ring gas outlet channel) is also the largest, that is, the gas quantity entering the outer ring is also the largest; meanwhile, the gas channel 25 is always communicated with the inner ring gas outlet channel 12, and the overlapping area between the gas channel and the inner ring gas outlet channel is not changed along with the rotation of the valve core 2, so that the gas quantity entering the inner ring can be adjusted only through the gas inlet quantity. Since the amount of gas introduced into the gas passage 25 from the gas inlet hole 22 is maximized at this time, the amount of gas in the inner ring is maximized at this time, so that the firepower of the inner ring and the outer ring of the cooker is maximized.

Continuing to rotate the knob 5 anticlockwise, the valve core 2 also continues anticlockwise, when the valve core 2 rotates 115 anticlockwise, as shown in fig. 16(b), at this time, the positioning protrusion 41 is limited in the positioning groove 42, the area of the coincidence between the air inlet hole 22 and the gas inlet channel 11 is reduced, the coincidence between the adjusting hole 24 and the gas inlet channel 11 is generated, gas enters the gas channel 25 through the air inlet hole 22 and the adjusting hole 24, because the area of the cross section of the adjusting hole 24 is smaller than that of the cross section of the air inlet hole 22, the gas intake amount is relatively reduced at this time, and therefore the gas amount in the inner ring gas outlet channel 12 is reduced. In addition, because the overlapping area of the gas outlet holes 23 and the gas outlet channel 13 is also reduced, the gas quantity of the outer ring is also reduced, and the firepower of the inner ring and the outer ring of the cooker is reduced.

When the knob 5 is rotated counterclockwise, the valve core 2 is rotated counterclockwise, and when the valve core 2 is rotated 145 ° counterclockwise, as shown in fig. 16(c), the positioning protrusion 41 is limited in the positioning groove 42. The overlapping area between the air inlet hole 22 and the gas inlet channel 11 is continuously reduced, and the overlapping area between the adjusting hole 24 and the gas inlet channel 11 is continuously increased, so that the gas quantity entering the gas channel 25 through the adjusting hole 24 is increased; and because the overlapping area of the gas outlet holes 23 and the gas outlet channel 13 is continuously reduced, the gas quantity of the outer ring is also reduced, the gas quantity of the inner ring of the cooker is hardly reduced or even increased, and the firepower of the inner ring of the cooker is larger than that of the outer ring.

When the knob 5 is rotated counterclockwise, the valve core 2 is rotated counterclockwise, and the valve core 2 is rotated counterclockwise by 170 °, as shown in fig. 16(d), the positioning protrusion 41 is limited in the positioning groove 42. At this time, the coincidence between the air inlet hole 22 and the gas inlet channel 11 disappears, that is, the gas cannot enter the gas channel 25 through the air inlet hole; meanwhile, the overlapping area between the adjusting hole 24 and the gas inlet channel 11 reaches the maximum, namely, the gas only enters the gas channel 25 from the adjusting hole 24; meanwhile, the superposition of the gas outlet hole 23 and the gas outlet channel 13 disappears, namely the firepower of the outer ring disappears; the inner ring has the least fire.

If the knob 5 rotates 90 ° counterclockwise and then rotates 30 ° clockwise, as shown in fig. 17(a), the positioning protrusion 41 is limited in the positioning groove 42. The area of the mutual superposition of the air inlet hole 22 and the gas inlet channel 11 is reduced, and the area of the mutual superposition of the air outlet hole 23 and the gas outlet channel 13 is also reduced, so that the firepower of the inner ring and the outer ring is reduced.

The knob 5 is further rotated clockwise by 30 ° as shown in fig. 17(b), and at this time, the positioning protrusion 41 is caught in the positioning groove 42. The area of the mutual superposition of the air inlet hole 22 and the gas inlet channel 11 is minimized, the area of the mutual superposition of the air outlet hole 23 and the gas outlet channel 13 is minimized, and simultaneously, the regulating hole 24 and the gas outlet channel 13 are also superposed. Because the gas quantity entering the gas channel 25 is the least and the gas quantity entering the gas outlet channel 13 is the least, the firepower of the inner ring and the outer ring of the cooker is the least firepower at the moment.

The present disclosure also provides a stove comprising a stove body, and the plug valve of embodiment 1; the plug valve is arranged on the stove body. Because the stove adopts the plug valve of the embodiment 1, the stove at least can solve the problem that the firepower of the stove in the prior art is difficult to repeat and reproduce.

In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," 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 invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the described parent features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (12)

1. A plug valve comprises a valve body (1), a valve core (2) arranged in the valve body (1), and a valve rod (3) connected with the valve core (2); the device is characterized by further comprising a positioning component (4), wherein the positioning component (4) comprises a positioning protrusion (41) and a positioning groove (42);

the valve core (2) is driven by the valve rod (3) to rotate relative to the positioning component (4) connected with the valve body (1), and the valve core (2) is positioned through the limit matching of the positioning protrusion (41) and the positioning groove (42).

2. The plug valve according to claim 1, wherein the positioning protrusion (41) is provided on a side wall of the valve body (1) which is in fit connection with the valve core (2), and the corresponding positioning groove (42) is provided on the valve core (2).

3. A plug valve according to claim 2, wherein the positioning protrusion (41) is a ball, and the valve body (1) is provided with a mounting hole in which the ball is roll-mounted.

4. A plug valve according to claim 3, characterized in that said positioning assembly (4) further comprises an elastic member (43); the elastic piece (43) is arranged in the mounting hole, is connected with the positioning protrusion (41) and is used for enabling the positioning protrusion (41) to prop against the positioning groove (42) to realize the limiting connection between the positioning protrusion (41) and the positioning groove (42).

5. A plug valve according to claim 4, characterised in that the positioning assembly (4) further comprises a fastening member (44), the fastening member (44) being connected to the resilient member (43) for fixing compression of the resilient member (43).

6. Plug valve according to any of claims 2 to 5, characterized in that the number of said positioning recesses (42) is a plurality; the positioning grooves (42) are arranged around the same circumference of the valve core (2) at intervals.

7. A plug valve according to claim 6, wherein a plurality of said detent recesses (42) are provided between the inlet port (22) of the core (2) and the outlet port (23) of the core (2).

8. The plug valve of claim 6, wherein the valve core (2) is further provided with a chute; the sliding groove is formed in the circumferential direction of the valve core (2) in a surrounding mode, and the positioning groove (42) is formed in the sliding groove.

9. The plug valve of claim 8, wherein said axial cross-section of said slot is a V-shaped configuration.

10. Plug valve according to claim 7, characterized in that the inlet hole (22) communicates with the gas inlet channel (11) of the valve body (1) and the outlet hole (23) communicates with the gas outlet channel (13) of the valve body (1); the valve core (2) is also provided with an adjusting hole (24) for adjusting the gas inlet quantity or the gas outlet quantity;

the air inlet hole (22), the air outlet hole (23) and the adjusting hole (24) are arranged around the same circumference of the valve core (2); the area of the cross section of the adjusting hole (24) is smaller than that of the cross section of the air inlet hole (22) and smaller than that of the cross section of the air outlet hole (23).

11. Plug valve according to claim 10, characterized in that said valve body (1) comprises an outer ring gas outlet channel and an inner ring gas outlet channel (12);

the gas outlet channel (13) is the outer ring gas outlet channel; and a gas channel (25) is axially arranged in the valve core (2), the gas channel (25) is communicated with the gas inlet hole (22), the gas outlet hole (23) and the adjusting hole (24), and the gas channel (25) is also communicated with the inner ring gas outlet channel (12).

12. A hob characterized in, that it comprises a hob body, and a plug valve according to any one of claims 1-11; the plug valve is installed on the stove body.

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