CN116104984A

CN116104984A - Segment valve and gas stove comprising same

Info

Publication number: CN116104984A
Application number: CN202310027192.4A
Authority: CN
Inventors: 俞瑜; 苏慧玲
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2023-01-09
Filing date: 2023-01-09
Publication date: 2023-05-12

Abstract

The invention discloses a segment valve and a gas stove comprising the same, wherein the segment valve comprises a valve body and a gas knob connected with a valve core of the valve body, a normal temperature interval and an auxiliary temperature interval are sequentially arranged on the valve body along the rotation direction of the gas knob, the segment valve also comprises a detection mechanism, a detection end of the detection mechanism is arranged corresponding to the gas knob, and the detection mechanism is used for detecting whether the gas knob rotates to the auxiliary temperature interval or not, and if so, a signal is sent. The signal is used as a necessary condition that the segment valve enters the auxiliary temperature zone, so that the segment valve can enter the auxiliary temperature zone only when the gas knob rotates to the angle, and the situation that a user can not enter the auxiliary temperature zone due to false touch or the fire of the auxiliary temperature zone can not meet the condition that the user can not return to the normal temperature zone from the auxiliary temperature zone to carry out re-ignition because the program keeps controlling the fire of the segment valve after entering the auxiliary temperature zone is avoided.

Description

Segment valve and gas stove comprising same

Technical Field

The invention relates to the technical field of gas cookers, in particular to a segment valve and a gas cooker comprising the segment valve.

Background

The burner is usually provided with inner ring fire lid and outer ring fire lid, burn respectively in order to provide the thermal efficiency through inner ring fire lid and outer ring fire lid, in order to satisfy the user and have different thermal efficiency demands when cooking to different food, for example to the thermal efficiency demand low, that is to say only need inner ring fire lid burning, keep only the burning of inner ring fire lid all the time through closing the outer ring gas passageway of outer ring fire lid, and then make the outer ring fire lid of gas knob can not burn anyway, this state is called the accuse temperature mode, can avoid the user to touch the gas knob by mistake under the accuse temperature mode and make the burner break away from accuse temperature mode, avoid thermal efficiency to change and influence user experience.

In the existing burner with temperature control mode, a bistable valve is controlled by a program to realize the opening and closing of an outer ring so as to realize the purpose of temperature control, when a user needs to enter the temperature control mode, the bistable valve is opened to close an outer ring gas channel so as to realize continuous fire closing of an outer ring fire cover, but under the background that the existing burner or a gas stove is generally designed with larger load, even if the outer ring fire cover is closed, the fire power of an inner ring fire cover is above 1000w under the condition that only an inner ring fire cover burns, the temperature of a cooker can continuously rise or be stabilized at a high value, and the condition that the temperature of the cooker cannot be controlled by only keeping the combustion of the inner ring fire cover when the burner enters the temperature control mode is caused; and after the user selects the temperature control mode, because the actual cooking pot and the cooking environment of the user are different from the experimental environment when the temperature control mode is designed, when the user enters the temperature control mode to cook the food, the combustor only keeps the condition that the combustion heat efficiency is insufficient under the inner ring fire cover, so that the user can not achieve the heat efficiency required by the user for cooking the food in the temperature control mode, and when the user goes to adjust the combustor and tries to open the outer ring fire cover at the moment, the bistable valve closed by the program control can not open the outer ring gas channel under the condition that the user adjusts the gas knob, and then the outer ring fire cover can not burn normally, so that the condition that the fire adjustment fails is caused, and the user experience is poor.

Disclosure of Invention

The invention aims to overcome the defect that the requirement of the outer ring fire cover on improving the heat efficiency cannot be realized after the outer ring fire cover enters a temperature control mode in the prior art, and provides a segment valve and a gas stove comprising the segment valve.

The invention solves the technical problems by the following technical scheme:

the segment valve comprises a valve body and a gas knob connected with a valve core of the valve body, wherein a normal temperature interval and an auxiliary temperature interval are sequentially arranged on the valve body along the rotation direction of the gas knob,

the segment valve further comprises a detection mechanism, the detection end of the detection mechanism is arranged corresponding to the gas knob, the detection mechanism is used for detecting whether the gas knob rotates to the auxiliary temperature range, and if yes, a signal is sent out.

In the scheme, the inside of the segment valve is divided into a normal temperature interval and an auxiliary temperature interval through the gas knob, the gas knob can be switched between the normal temperature interval and the auxiliary temperature interval, when a user rotates the gas knob to the normal temperature interval, the inner ring gas channel and the outer ring gas channel of the segment valve are correspondingly connected with the rotation angle of the gas knob and ensure the normal demand of the user on fire, when the user rotates the gas knob to the auxiliary temperature interval, the detection mechanism detects the operation of the user and sends out a signal, and the signal is taken as a necessary condition that the segment valve enters the auxiliary temperature interval, so that the segment valve can enter the auxiliary temperature interval only when the gas knob rotates to the angle, the situation that the user can enter the auxiliary temperature interval due to false touch is avoided, or the fire of the auxiliary temperature interval can not meet the condition that the user can not return to the normal temperature interval from the auxiliary temperature interval due to the control of the program after entering the auxiliary temperature interval.

Preferably, the detecting mechanism comprises a micro switch, and the micro switch is correspondingly arranged at the junction of the normal temperature interval and the auxiliary temperature interval.

In the scheme, the micro switch is correspondingly arranged at the junction of the normal temperature interval and the auxiliary temperature interval, the gas knob is rotated to enable the segment valve to detect through the micro switch when entering the normal temperature interval or the auxiliary temperature interval so as to send out signals, and the precision of the segment valve when entering the normal temperature interval and the auxiliary temperature interval is improved.

Preferably, a valve body of the segment valve is rotatably connected with a closure, an inner ring temperature control hole and an outer ring temperature control hole are arranged on the closure corresponding to the auxiliary temperature interval, and the inner ring temperature control hole is arranged so that when the segment valve enters the auxiliary temperature interval, an inner ring gas channel of the segment valve is communicated with the inner ring temperature control hole and an outer ring temperature control Wen Kongwei is communicated with an outer ring gas channel of the segment valve.

In the scheme, an inner ring temperature control hole and an outer ring temperature control hole are arranged on the closed valve corresponding to the auxiliary temperature interval, the inner ring temperature control hole is used for being communicated with an inner ring gas channel in the closed valve, the outer ring temperature control hole is arranged corresponding to an outer ring gas channel in the closed valve, the inner ring temperature control hole is used for reducing the gas quantity entering the inner ring gas channel when the section valve enters the auxiliary temperature interval, the gas quantity supplied by the section valve is reduced, the firepower of an inner ring fire cover of a burner communicated with the section valve is reduced when a user uses the burner, namely the combustion heat efficiency is reduced, the temperature control requirement in the auxiliary temperature interval is realized, and the outer ring gas channel of the closed valve in the auxiliary temperature interval is not communicated, so that the outer ring fire cover of the burner is prevented from being communicated while the combustion heat efficiency of the inner ring fire cover is reduced, and the combustion heat efficiency lower than that in the normal temperature interval is maintained.

Preferably, the valve body is provided with an outer ring flow hole corresponding to the normal temperature interval, and the outer ring flow hole is not communicated with the outer ring gas channel when the valve body enters the normal temperature interval, and the outer ring temperature control hole is not communicated with the outer ring flow hole.

In the scheme, the outer ring flow hole is further formed in the closure, and the outer ring flow hole is used for adjusting the firepower of an outer ring fire cover of the burner communicated with the section valve by rotating the gas knob when the section valve is located in a normal temperature interval so as to meet the requirement of a user on higher heat efficiency than an affiliated temperature interval.

Preferably, the valve is further provided with an inner ring flow hole, the inner ring flow hole corresponds to the normal temperature interval, and the inner ring flow hole is set so that when the inner ring flow hole is communicated with the inner ring gas channel, the inner ring temperature control hole is not communicated with the inner ring gas channel.

In this scheme, still be provided with the inner loop flow hole on the closure, inner loop flow hole and inner loop accuse temperature hole interval set up to make the inner loop gas passageway of closure be in normal temperature interval when closing the closure can normally adjust the required firepower of user through inner loop flow hole, and can not get into affiliated temperature interval by mistake.

Preferably, the inner ring temperature control hole is a step hole, and the size of the orifice close to the outer surface of the closure is larger than that of the other side of the inner ring temperature control hole.

In the scheme, the inner ring temperature control hole is a step hole, that is to say, the size of the inner ring temperature control hole when the inner ring temperature control hole is actually communicated with the inner ring gas channel is the orifice size of the outer surface of the inner ring temperature control hole far away from the closure, so that the gas quantity entering the inner ring gas channel is further reduced, and the temperature control effect of the segment valve in an affiliated temperature interval is improved.

Preferably, the passage opening of the inner ring gas passage is communicated with a partial area of the inner ring temperature control hole.

In the scheme, when the inner ring temperature control hole rotates through the gas knob and is communicated with the inner ring gas channel, a partial area of the inner ring temperature control hole is communicated with the inner ring gas channel so as to further reduce the amount of gas entering the inner ring gas channel.

Preferably, the segment valve further comprises a limiting mechanism, the limiting mechanism is arranged corresponding to the auxiliary temperature interval, and when the gas knob moves relative to the limiting mechanism in a direction perpendicular to the rotation direction, the segment valve correspondingly enters the auxiliary temperature interval.

In this scheme, stop gear is used for restricting the gas knob and gets into affiliated temperature interval, and then through the operation of the motion of perpendicular to direction of rotation in order to indicate that the section position valve gets into affiliated temperature interval in order to be different from the operation that the section position valve is in normal temperature interval this moment.

The gas stove comprises the segment valve, a burner and a control mechanism electrically connected with the detection mechanism, wherein the control mechanism receives signals sent by the detection mechanism and correspondingly opens or closes an outer ring gas channel of the valve body, and when the outer ring gas channel is closed, an outer ring fire cover of the burner is correspondingly closed.

In this scheme, detect user's operation through the section position valve so that the section position valve sends the signal when getting into affiliated temperature interval, this signal is transmitted to control mechanism and through control mechanism control outer loop gas passageway, and then realize the corresponding closing of outer loop fire lid of combustor, the combustor gets into the accuse temperature mode, namely the combustion state of combustor in the affiliated temperature interval, the combustor provides the combustion heat efficiency that is less than normal temperature interval in order to satisfy user's culinary art demand under the accuse temperature mode, still accessible rotatory gas knob makes the section position valve reentry normal temperature interval in order to satisfy user's needs when user promotes to combustion heat efficiency demand.

Preferably, the control mechanism comprises a bistable valve electrically connected with the detection mechanism.

In the scheme, the bistable valve is used for opening and closing the outer ring fuel gas channel so as to realize smooth opening or closing of the outer ring fire cover of the combustor.

Preferably, a temperature control indicating mechanism is arranged on a kitchen range panel of the gas kitchen range, and the temperature control indicating mechanism is electrically connected with the control mechanism and is connected with the temperature control indicating mechanism when the segment valve enters the auxiliary temperature interval.

In the scheme, the temperature control indicating mechanism is used for prompting a user of the working state of the burner at the moment so as to further distinguish the normal temperature interval or the auxiliary temperature interval of the check valve, and timely remind the user when the user touches the check valve by mistake.

The invention has the positive progress effects that: according to the invention, the detection mechanism is arranged on the section valve body to correspondingly detect the normal temperature interval or the auxiliary temperature interval where the section valve of the gas knob is positioned when the user rotates, and the detection mechanism correspondingly sends out a signal when the section valve is positioned in the auxiliary temperature interval, so that the section valve can correspondingly meet the user requirement when the user needs to enter the auxiliary temperature interval, the signal is used as a necessary condition that the section valve enters the auxiliary temperature interval when the gas knob is rotated and enters the arranged auxiliary temperature interval, and the section valve can enter the auxiliary temperature interval only when the gas knob is rotated to the angle, so that the condition that the user can enter the auxiliary temperature interval due to mistaken touch is avoided, or the fire of the auxiliary temperature interval can not meet the condition that the user can not return to the normal temperature interval from the auxiliary temperature interval due to the control of the fire of the section valve after entering the auxiliary temperature interval is kept by a program.

Drawings

Fig. 1 is a perspective view of a gas range according to an embodiment of the present invention.

FIG. 2 is a diagram showing the positional relationship between a control mechanism and a spool valve according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of a connection relationship between a segment valve and an outer ring fire cover of a gas stove according to an embodiment of the present invention.

Fig. 4 is a perspective view of a segment valve according to an embodiment of the present invention.

FIG. 5 is a schematic diagram showing the positional relationship between the inner ring temperature control hole and the inner ring flow hole of the closure according to an embodiment of the present invention.

FIG. 6 is a schematic diagram illustrating a positional relationship between an inner ring temperature control hole and an inner ring gas channel according to an embodiment of the present invention.

Reference numerals illustrate:

inner ring fire cover 1

Outer ring fire cover 2

Valve body 3

Inner ring gas channel 31

Outer ring gas channel 32

Normal temperature interval 4

Auxiliary temperature interval 5

Detection mechanism 6

Closure 7

Inner circulation flow hole 71

Outer circulation flow orifice 72

Inner ring temperature control hole 73

Outer ring temperature control hole 74

Limiting mechanism 8

Gas kitchen ranges 9

Burner 91

Control mechanism 10

Detailed Description

The invention is further illustrated by means of the following examples, which are not intended to limit the scope of the invention.

The embodiment provides a segment valve, the specific structure of which is shown in fig. 2, 3 and 4, wherein the segment valve is used for being communicated with an air inlet pipeline of a gas stove and respectively supplying fuel gas to an inner ring fire cover 1 and an outer ring fire cover 2 of a burner so as to meet the requirement of a user on the combustion heat efficiency of the gas stove. Wherein, the section position valve includes valve body 3, sets up inner ring gas passageway 31 and outer loop gas passageway 32 in the valve body 3, and inner ring gas passageway 31 and outer loop gas passageway 32 are connected to inner ring fire lid 1 and outer loop fire lid 2 through the trachea respectively, and the case of valve body 3 still is provided with the gas knob that is used for adjusting the firepower size, and the gas is adjusted in order to realize the burning of inner ring fire lid 1 and outer loop fire lid 2 of different firepower sizes according to the user demand after the admission line gets into valve body 3, and this is prior art, does not make excessive redundant description here.

In addition, the valve body 3 is sequentially provided with a normal temperature interval 4 and an auxiliary temperature interval 5 along the rotation direction of the gas knob, the normal temperature interval 4 corresponds to a part of rotation angle of the gas knob, in this embodiment, the normal temperature interval 4 is illustrated by taking 0 ° -170 ° as an example, but the normal temperature interval 4 is not limited in the angle range, and when the user rotates the gas knob from 0 ° to 170 ° in the angle range, the inner ring gas channel 31 and the outer ring gas channel 32 of the segment valve are correspondingly connected with the segment valve along with the rotation angle of the gas knob, so that the gas amount supplied to the inner ring gas channel 31 and the outer ring gas channel 32 is gradually increased, and normal demand of the user on firepower is ensured, so that the combustion heat efficiency of the burner communicated with the segment valve is gradually increased, so as to adapt to different cooking environments.

The auxiliary temperature interval 5 corresponds to another part of the rotation angle of the gas knob, in this embodiment, 170 ° -230 ° is taken as an example, and in this angle range, when the user rotates the gas knob from 170 ° to 230 °, the segment valve closes the outer ring gas channel 32 and makes the outer ring fire cover 2 correspondingly fire-closed, so that the burner can quickly enter a low temperature state, which is also referred to as a "temperature control mode", compared with the inner ring fire cover 1 and the outer ring fire cover 2 which fire simultaneously, and in the temperature control mode, only the inner ring fire cover 1 is kept to burn and the thermal efficiency of the burner is reduced, so as to adapt to the fire demand of the user when the special food is cooked. The inside of the segment valve is divided into a normal temperature interval 4 and an auxiliary temperature interval 5 through the gas knob, the gas knob can be switched between the normal temperature interval 4 and the auxiliary temperature interval 5, meanwhile, the valve body 3 of the segment valve is further provided with a detection mechanism 6, the detection end of the detection mechanism 6 is arranged on the side part of the gas knob, the detection mechanism 6 is used for detecting the rotation angle of the gas knob and judging whether the gas knob rotates to the auxiliary temperature interval 5, if yes, a signal is sent out, and the signal is used as a necessary condition that the segment valve enters the auxiliary temperature interval 5, namely, only when the gas knob rotates to the angle, the segment valve can send out the signal and enter the auxiliary temperature interval 5, so that the user is prevented from touching by mistake and entering the auxiliary temperature interval 5. Because the gas knob can be switched between the normal temperature interval 4 and the auxiliary temperature interval 5 in a rotating way, compared with the mode of controlling the outer ring gas channel 32 communicated with the outer ring fire cover 2 through a single program in the prior art, the segment valve can timely exit and reenter the normal temperature interval 4 to carry out fire regulation according to the self requirement of a user after entering the auxiliary temperature interval 5, so that the situation that the lower heat efficiency of the user is lower than that required by the user in the temperature control mode of entering the auxiliary temperature interval 5, and the outer ring fire cover 2 is always controlled through the program and the electric connection, so that the user cannot use inconvenience due to regulation is avoided.

Further, the detecting mechanism 6 includes a micro switch, where the micro switch is used in the prior art to detect the rotation angle of the component, and is not described in detail herein, the micro switch is disposed at the junction of the normal temperature interval 4 and the auxiliary temperature interval 5, that is, the 170 ° position of the gas knob corresponding to the rotation angle in this embodiment, and the gas knob is rotated to make the segment valve detect through the micro switch when entering the normal temperature interval 4 or the auxiliary temperature interval 5 so as to send out a signal, thereby improving the precision of the segment valve when entering the normal temperature interval 4 and the auxiliary temperature interval 5.

In other embodiments, the gas knob may be disposed at other rotation angles corresponding to the gas knob, so as to detect and send a signal through the detection mechanism 6, so that the user can smoothly enter the auxiliary temperature interval 5.

And, as shown in fig. 4, 5, be provided with the accommodation chamber that is used for holding the closure 7 in the valve body 3, the closure 7 rotates and connects in accommodation chamber and interior ring gas passageway 31 and outer loop gas passageway 32 communicate respectively in the different positions of accommodation chamber inner wall, closure 7 and valve rod fixed connection on the valve body 3, and gas knob fixed connection is in the tip of stretching out valve body 3 of valve rod, normal temperature interval 4 and affiliated temperature interval 5 that gas knob rotation angle corresponds just is equivalent to the valve rod and drives the region that closure 7 corresponds, be provided with interior ring flow hole 71 and outer loop flow hole 72 on the closure 7, interior ring flow hole 71 and outer loop flow hole 72 correspond normal temperature interval 4 setting, outer loop flow hole 72 and interior ring flow hole 71 set up on the surface of closure 7 non-altitude and outer loop flow hole 72 and interior ring flow hole 71 are along closure 7 height direction crisscross setting, its purpose is in the rotation closure 7 in-process, along with the rotation angle increase and progressively switch-on gas passageway 31 and outer loop gas passageway 32, that is used for when gas knob rotates to the gas knob and drives the region that the gas knob to rotate to the inner loop inner wall 31 and the gas at this temperature and the same as the air inlet opening of inner loop 2, the normal fire hole is further connected to the user, the demand is satisfied at this air inlet, the air inlet is further connected to the normal temperature, and the user is realized, the air inlet is in this normal temperature to the air inlet is more than the inner loop has been connected to the inner loop flow hole. The shutter 7 is also provided with an inner ring temperature control hole 73 and an outer ring temperature control hole 74 corresponding to the auxiliary temperature interval 5, the outer ring temperature control hole 74 is arranged corresponding to the outer ring gas channel 32 in the shutter 7 and is positioned at the same height as the outer ring flow hole 72 on the outer surface of the shutter 7, the inner ring temperature control hole 73 and the inner ring flow hole 71 are arranged around the same height of the shutter 7, the inner ring temperature control hole 73 and the inner ring flow hole 71 are arranged at intervals, the inner ring flow hole 71 and the inner ring temperature control hole 73 correspondingly rotate in the accommodating cavity when the shutter 7 is driven to rotate by the gas knob, and the inner ring flow hole 71 is communicated with the inner ring gas channel 31 when the section valve is in the normal temperature interval 4 and supplies gas to the inner ring fire cover 1 communicated with the section valve. Similarly, when the gas knob is rotated so that the segment valve enters the auxiliary temperature zone 5, the inner ring temperature control hole 73 is correspondingly rotated to communicate with the inner ring gas passage 31 and supply gas to the inner ring flame cover 1 communicating with the segment valve. In addition, the size of the inner ring temperature control hole 73 is smaller than that of the inner ring flow hole 71, the inner ring temperature control hole 73 is used for reducing the amount of gas entering the inner ring gas channel 31 when the segment valve enters the auxiliary temperature zone 5, the amount of gas supplied by the segment valve is reduced, so that the fire power of the inner ring fire cover 1 of the burner communicated with the segment valve is reduced, namely the combustion heat efficiency is reduced, the temperature control requirement under the auxiliary temperature zone 5 is realized, meanwhile, the outer ring temperature control hole 74 and the outer ring flow hole 72 are arranged at intervals, and the distance between the outer ring temperature control hole 74 and the outer ring flow hole 72 is larger than the distance between the inner ring temperature control hole 73 and the inner ring flow hole 71, so that the outer ring gas channel 32 of the closer 7 is not connected with the outer ring fire cover 2 of the burner when the segment valve is in the auxiliary temperature zone 5, the combustion heat efficiency of the inner ring fire cover 1 is reduced, the outer ring fire cover 2 of the burner is prevented from being connected at the same time, the combustion heat efficiency of the auxiliary temperature zone 5 is maintained, and the cooking requirement of the user is met.

In the present embodiment, the interval between the outer circulation flow holes 72 and the outer ring temperature control holes 74 is set such that the outer circulation flow holes 72 are not communicated with the outer ring gas passage 32 and the outer ring temperature control holes 74 are not communicated with the outer ring gas passage 32 when the spool valve is in the normal temperature interval 4. Specifically, the distance between the outer ring temperature control hole 74 and the outer ring flow hole 72 is larger than the distance between the outer ring flow hole 72 and the inner ring flow hole 71, and when the segment valve is in the normal temperature interval 4, the fire power of the outer ring fire cover 2 of the burner communicated with the segment valve is adjusted by rotating the gas knob so as to meet the requirement of a user on higher heat efficiency than the auxiliary temperature interval 5. When the gas knob is continuously rotated, the valve body 3 is directly communicated with the inner ring gas channel 31 when entering the auxiliary temperature zone 5 so as to keep the flame of the burner from extinguishing, the firepower when the inner ring temperature control hole 73 is communicated with the inner ring gas channel 31 is lower than the firepower when the inner ring flow hole 71 is communicated with the inner ring gas channel 31, and when the valve body 3 is in the auxiliary temperature zone 5, the gas knob is continuously rotated and the rotation angle is larger than the interval between the outer ring flow hole 72 and the outer ring temperature control hole 74, the outer ring temperature control hole 74 is communicated when the gas knob is in the auxiliary temperature zone 5 at a relatively large angle, and the size of the outer ring temperature control hole 74 is smaller than the size of the outer ring flow hole 72, namely the firepower when the outer ring temperature control hole 74 is communicated with the outer ring gas channel 32 is lower than that of the firepower of the normal temperature zone 4, so that a plurality of firepower ranges are provided, and the selectivity of a user and the convenience of adjusting the firepower are improved.

In the present embodiment, the inner ring flow rate hole 71 is provided such that the inner ring temperature control hole 73 is not in communication with the inner ring gas passage 31 when the inner ring flow rate hole 71 is in communication with the inner ring gas passage 31. Specifically, the inner ring flow hole 71 and the inner ring temperature control hole 73 are arranged at intervals, and only the inner ring flow hole 71 is communicated with the inner ring gas channel 31 when the segment valve is in the normal temperature interval 4, so that the inner ring gas channel 31 of the closure 7 can normally adjust the fire required by a user through the inner ring flow hole 71 when the closure 7 is in the normal temperature interval 4, and does not enter the auxiliary temperature interval 5 by mistake.

Further, the inner ring temperature control hole 73 is a step hole, and the step hole is a hole enlarging hole formed on the outer peripheral side of a smaller hole in the prior art, so that the enlarged larger hole and the enlarged smaller hole are communicated to form the same hole, that is, the size of the inner ring temperature control hole 73 is the size of an orifice of the inner ring temperature control hole 73 close to the accommodating cavity of the closure 7 when the inner ring temperature control hole 73 is actually communicated with the inner ring gas channel 31, the communicating area of the inner ring temperature control hole 73 is smaller than the communicating area of the inner ring flow hole 71 and the inner ring gas channel 31 when the inner ring temperature control hole 73 is communicated with the inner ring gas channel 31, so that the amount of gas entering the inner ring gas channel 31 is reduced, accordingly, the fire power of the inner ring fire cover 1 communicated with the inner ring gas channel 31 is reduced only by 'small fire' and 'medium fire', the combustion heat efficiency of the inner ring fire cover 1 is reduced, the temperature control mode of the lower-stage valve of the auxiliary temperature zone 5 is realized, and the temperature control effect of the stage valve when the stage valve is in the auxiliary temperature zone 5 is improved.

In the present embodiment, as shown in fig. 6, the passage port of the inner ring gas passage 31 communicates with a partial region of the inner ring temperature control hole 73. Specifically, the size of the inner ring temperature control hole 73 is smaller than that of the inner ring flow hole 71, and the setting height of the inner ring temperature control hole 73 is not set corresponding to the inner ring gas channel 31, that is, the inner ring temperature control hole 73 and the inner ring gas channel 31 are only partially overlapped, so that when the inner ring temperature control hole 73 rotates through the gas knob and is communicated with the inner ring gas channel 31, the partial area of the inner ring temperature control hole 73 is communicated with the inner ring gas channel 31 to further reduce the amount of gas entering the inner ring gas channel 31. In addition, the surface of the accommodating cavity contacting with the shutter 7 in the prior art is usually filled with grease for sealing, and the grease may drip along with the inner wall of the accommodating cavity or the surface of the shutter 7 to block the inner circulation flow hole 71, the inner ring temperature control hole 73, the outer ring flow hole 72 and the outer ring temperature control hole 74, and by communicating a partial area of the inner ring temperature control hole 73 with a passage opening of the inner ring gas passage 31, a hole with a changeable shape can be formed by combining an orifice of the inner ring temperature control hole 73 and the passage opening of the inner ring gas passage 31 in the partial area of the inner ring temperature control hole 73 and the inner ring gas passage 31 when the inner ring temperature control hole 73 is communicated with the inner ring gas passage 31, so as to scrape the grease which blocks the inner ring temperature control hole 73 or the inner ring gas passage 31 due to self tension, thereby realizing the anti-blocking function of the shutter 7.

As shown in fig. 4, in a preferred embodiment, the segment valve further includes a limiting mechanism 8, where the limiting mechanism 8 is disposed corresponding to the auxiliary temperature interval 5, and the limiting mechanism 8 is in an arc structure and is used for limiting the gas knob or the valve rod from being turned into the auxiliary temperature interval 5 along the rotation direction. Specifically, a cross rod extending along the horizontal direction is arranged on the valve rod, the cross rod rotates along with the valve rod and is used for being matched with the limiting mechanism 8 so as to prevent the valve rod or the gas knob from further rotating before the valve rod or the gas knob rotates to the auxiliary temperature interval 5, the valve body 3 is correspondingly provided with vertical grooves, the vertical grooves are arranged at two ends of the limiting mechanism 8 and used for enabling the cross rod to move into the vertical grooves when the gas knob moves relative to the limiting mechanism 8 in a direction perpendicular to the rotating direction, and the segment valve correspondingly enters the auxiliary temperature interval 5. The operation of the movement perpendicular to the rotation direction is used for prompting the user that the section valve enters the auxiliary temperature zone 5 at the moment so as to be different from the operation that the section valve is in the normal temperature zone 4, so that the operability of the section valve is improved, and the situation that the section valve enters the auxiliary temperature zone 5 by mistake due to the fact that the user touches by mistake is avoided.

The specific structure of the gas stove 9 is shown in fig. 1 and 2, the gas stove 9 comprises the segment valve, the gas stove 9 further comprises a burner 91 and a control mechanism 10 electrically connected with the detection mechanism 6, a signal sent by the detection mechanism 6 when the segment valve enters the auxiliary temperature zone 5 is transmitted to the control mechanism 10, the control mechanism 10 receives the signal sent by the detection mechanism 6 and correspondingly opens or closes the outer ring gas channel 32 of the valve body 3, and when the outer ring gas channel 32 is closed, the outer ring fire cover 2 of the burner 91 communicated with the segment valve is correspondingly closed.

Specifically, the operation of the user is detected through the segment valve, so that the segment valve sends a signal when entering the auxiliary temperature interval 5, the signal is transmitted to the control mechanism 10 and the outer ring gas channel 32 is controlled through the control mechanism 10, so that the outer ring fire cover 2 of the burner 91 is correspondingly closed, the burner 91 enters a temperature control mode, namely, the combustion state of the burner 91 in the auxiliary temperature interval 5, the burner 91 provides combustion heat efficiency lower than that of the normal temperature interval 4 in the temperature control mode to meet the cooking requirement of the user, and the normal temperature interval 4 and the auxiliary temperature interval 5 of the segment valve can be switched by rotating the gas knob, so that the segment valve can reenter the normal temperature interval 4 by rotating the gas knob when the user increases the combustion heat efficiency requirement to meet the user requirement. The control mechanism 10, the detection mechanism 6 and the outer ring gas channel 32 controlled by the control mechanism 10 are all circuits and channel arrangements related to the prior art, and are not described in detail herein.

Further, an air pipe is connected between the outer ring gas channel 32 and the outer ring fire cover 2, the control mechanism 10 is located between the outer ring gas channel 32 and the outer ring fire cover 2, and one end of the control mechanism 10 is used for opening or closing the air pipe, so that the outer ring fire cover 2 is opened or closed. The control mechanism 10 comprises a bistable valve electrically connected to the detection mechanism 6. The bistable valve adopts an electric control valve in the prior art, and the bistable valve is driven to open and close the outer ring gas channel 32 by a signal so as to realize the smooth opening or closing of the outer ring fire cover 2 of the burner 91.

In the present embodiment, a temperature control indicating mechanism (not shown in the figure) is disposed on the stove panel of the gas stove 9, and the temperature control indicating mechanism is electrically connected with the control mechanism 10 and the control mechanism 10 is connected with the temperature control indicating mechanism when the segment valve enters the auxiliary temperature interval 5.

Specifically, the temperature control indication mechanism adopts the device for prompting in the prior art, for example, a sign of a temperature control mode is silk-screened on a kitchen range panel, when the segment valve enters the auxiliary temperature interval 5, the detection mechanism 6 detects the condition and sends out a signal, the signal is sent out and is transmitted to the control mechanism 10 when the gas knob continues to rotate, the control mechanism 10 correspondingly closes the outer ring fire cover 2 of the burner 91 connected with the segment valve, and the signal is also transmitted to the temperature control indication mechanism electrically connected with the control mechanism, at the moment, the sign of the temperature control mode of the silk-screened kitchen range panel correspondingly lights up, and the user is prompted again that the gas range 9 has entered the temperature control mode at the moment.

While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the invention, but such changes and modifications fall within the scope of the invention.

Claims

1. The segment valve comprises a valve body and a gas knob connected with a valve core of the valve body, and is characterized in that a normal temperature interval and an auxiliary temperature interval are sequentially arranged on the valve body along the rotation direction of the gas knob,

2. The segment valve of claim 1, wherein the detection mechanism comprises a micro-switch, the micro-switch being disposed at a junction between the normal temperature zone and the auxiliary temperature zone.

3. The spool valve of claim 1 wherein a closure member is rotatably coupled to the spool valve body, the closure member having an inner ring temperature control aperture and an outer ring temperature control aperture disposed therein corresponding to the satellite temperature zone, the inner ring temperature control aperture being configured such that when the spool valve enters the satellite temperature zone, the inner ring gas passage of the spool valve communicates with the inner ring temperature control aperture and the outer ring control Wen Kongwei communicates with the outer ring gas passage of the spool valve.

4. A segment valve according to claim 3, wherein the closure is further provided with an outer annular flow orifice corresponding to the normal temperature interval, the outer annular flow orifice being arranged such that when the valve body enters the normal temperature interval, the outer annular flow orifice is not in communication with the outer annular gas passage and the outer annular temperature control orifice is not in communication with the outer annular flow orifice.

5. A segment valve according to claim 3, wherein the closure is further provided with an inner annular flow orifice, the inner annular flow orifice corresponding to the normal temperature interval and the inner annular flow orifice being arranged such that when the inner annular flow orifice is in communication with the inner annular gas passage, the inner annular temperature control orifice is not in communication with the inner annular gas passage.

6. A segment valve according to claim 3, wherein the inner ring temperature control aperture is a stepped aperture and the aperture size adjacent the outer surface of the closure is larger than the aperture size on the other side of the inner ring temperature control aperture.

7. A segment valve according to claim 3, wherein the port of the inner ring gas channel communicates with a partial region of the inner ring temperature control aperture.

8. The segment valve of claim 1, further comprising a limiting mechanism disposed in correspondence with the auxiliary temperature zone and adapted to enter the auxiliary temperature zone when the gas knob moves relative to the limiting mechanism in a direction perpendicular to the direction of rotation.

9. A gas stove comprising a segment valve according to any one of claims 1 to 8, further comprising a burner and a control mechanism electrically connected to the detection mechanism, wherein the control mechanism receives a signal from the detection mechanism and opens or closes the outer ring gas passage of the valve body accordingly, and when the outer ring gas passage is closed, the outer ring fire cover of the burner is closed accordingly.

10. The gas range of claim 9, wherein the control mechanism includes a bistable valve electrically coupled to the detection mechanism.

11. The gas cooker of claim 9, wherein a temperature control indicating mechanism is provided on a cooker panel of the gas cooker, the temperature control indicating mechanism being electrically connected with the control mechanism and being turned on by the control mechanism when the segment valve enters the auxiliary temperature zone.