CN219494177U - Valve cover, plug valve and kitchen range - Google Patents

Abstract

The utility model provides a valve cover, a plug valve and a kitchen range, and belongs to the technical field of kitchen and bathroom electrical appliances. The valve cover includes a body, a central bore, and a cap. The center hole is provided at a center position of the body. The cover-shaped part is formed by outwards and perpendicularly arranging one surface of the body and is used for being matched with the valve body so as to form an installation space. The cover-shaped part is provided with a 0-degree limiting block, a 90-degree limiting block and a 180-degree limiting block in the clockwise direction at the position close to the bottom, and gaps are formed between the roots of all the limiting blocks and the bottom of the cover-shaped part to form grooves. When the groove enables the plug valve to rotate to 90 degrees to be limited, the plug valve cannot be pressed down due to the fact that the valve cover is limited when the plug valve is rotated downwards again, the plug valve can be pressed down continuously, quick-frying is started, and accordingly user pressing quick-frying experience is guaranteed. And then make the plug valve and have cooking utensils of above-mentioned plug valve with above-mentioned valve gap, can normally start the stir-fry function for user's pushes down the stir-fry and experiences well.

Description

Valve cover, plug valve and kitchen range

Technical Field

The utility model relates to kitchen and bathroom electrical appliances, in particular to a valve cover, a plug valve and a kitchen range.

Background

Generally, in order to meet the habit that some Chinese people like large-fire stir-frying, the heat load of the current commercial kitchen ranges is larger and larger, and the large load of 5.0kW or 5.2kW becomes standard, but some users still feel too small fire after using the large-load kitchen ranges, and the stir-frying needs are not met, so that some manufacturers refer to the concept or function of one-key stir-frying of a smoke machine, and the one-key stir-frying kitchen range is provided, and when the one-key stir-frying is started, the instantaneous fire of the kitchen range can be immediately improved, so that the user stir-frying needs are met.

At present, two modes of quick-frying are available, one is that the quick-frying is controlled by a touch panel, and the other is that the quick-frying is started by pressing down a plug valve. The following will take plug valves as examples: the plug valve comprises a valve cover, a valve shaft, a limiting pulling sheet, a micro switch pressing sheet, a valve core, a first micro switch, a second micro switch, a valve body and a magnetic encoder. The limiting poking piece, the microswitch pressing piece and the valve core are arranged at the valve shaft, and the limiting poking piece and the valve core rotate along with the valve shaft. The limit pulling sheet is matched with the first micro switch to control ignition, and the micro switch pressing sheet is matched with the second micro switch to control quick-frying.

When the plug valve rotates 90 degrees, set up the structure spacing according to standard demand in the valve gap, 90 degrees are crossed because of there being spacing can appear the condition that can't push down, lead to the stir-fry function unable realization, influence user's the stir-fry experience that pushes down.

Disclosure of Invention

The utility model aims to provide a valve cover, which can solve the problem that a rotary valve cannot be pressed down after rotating by 90 degrees, realize the quick-frying function and improve the pressing quick-frying experience of a user.

The utility model also aims to provide a plug valve with the valve cover.

The utility model also aims at providing a kitchen range with the plug valve.

In order to achieve the purpose of the utility model, the utility model adopts the following technical scheme:

according to one aspect of the present utility model, there is provided a valve cover comprising:

a body;

a center hole provided at a center position of the body and penetrating the body for passing through a valve shaft; and

the cover-shaped part is formed by outwards and vertically arranging one surface of the body and is used for being matched with the valve body to form an installation space;

the position of the cover-shaped part, which is close to the bottom, is provided with a 0-degree limiting block, a 90-degree limiting block and a 180-degree limiting block in a clockwise direction, and a gap is formed between the root of the limiting block and the bottom of the cover-shaped part to form a groove.

According to one embodiment of the utility model, a first limiting block is arranged at a local position between the 0-degree limiting block and the 90-degree limiting block in the cover-shaped part, a slope is formed between a position of a starting point in the first limiting block and a position of an ending point in the first limiting block, the gradient of the ending point position of the first limiting block is 0, and a rotating surface is arranged between the ending point position of the first limiting block and the 180-degree limiting block.

According to another aspect of the present utility model, there is provided a plug valve comprising:

the valve cover comprises a body, a central hole and a cover-shaped part, wherein the central hole is arranged at the central position of the body and penetrates through the body and is used for being formed by the outward vertical direction of one surface of the body through a valve shaft, the cover-shaped part is used for being matched with the valve body to form an installation space, a position, close to the bottom, in the cover-shaped part is provided with a 0-degree limiting block, a 90-degree limiting block and a 180-degree limiting block according to the clockwise direction, and a gap is formed between the root part of the limiting block and the bottom of the cover-shaped part to form a groove;

the valve shaft is arranged at the central hole of the valve cover and can rotate freely relative to the central hole;

the limiting poking piece, the microswitch pressing piece and the valve core are arranged at the valve shaft in sequence from top to bottom, the limiting poking piece and the valve core rotate along with the valve shaft, so that the limiting poking piece rotates between limiting blocks of the valve cover, and the valve shaft drives the valve core to rotate so as to realize the opening and closing of the plug valve;

the first micro switch is arranged below the valve cover and matched with the limiting shifting piece so as to control ignition;

the second micro switch is arranged below the valve cover and matched with the micro switch pressing sheet to control quick-frying;

the valve body is matched with the valve cover to form an installation space; and

the magnetic encoder is arranged below the valve body and matched with the magnet in the valve core so as to realize angle detection.

According to one embodiment of the utility model, a first limiting block is arranged at a local position between the 0-degree limiting block and the 90-degree limiting block in the cover-shaped part, a slope is formed between a position where a starting point is located and a position where a final point is located in the first limiting block, the slope of the final point of the first limiting block is 0, so that the limiting shifting piece is in smooth transition, and a rotating surface is arranged between the final point of the first limiting block and the 180-degree limiting block, so that the limiting shifting piece slides flatly in the valve cover.

According to one embodiment of the utility model, the valve core further comprises an air outlet hole, the air outlet hole is arranged along the radial direction of the valve core, is arranged at a position close to the magnet, penetrates through the valve core and is used for positioning.

According to an embodiment of the utility model, a rubber ring is provided at the valve shaft to prevent water from entering the interior of the plug valve along the valve shaft.

According to one embodiment of the utility model, a rubber ring is arranged at the central hole of the valve cover so as to prevent water from entering the first micro switch and the second micro switch along the valve cover.

According to an embodiment of the present utility model, the magnetic encoder includes an upper case having a size larger than that of the magnetic encoder to be waterproof, and ribs are provided in the upper case to prevent insects.

According to another aspect of the utility model, there is provided a cooktop comprising the plug valve described above.

According to an embodiment of the utility model, wherein the hob further comprises:

the inner ring gas circuit is used for generating inner ring flames;

the outer ring gas circuit is used for generating outer ring flames;

the quick-frying air supplementing air circuit is provided with a pressure stabilizing valve which is configured to be communicated with the inner ring air circuit and/or the outer ring air circuit in an openable and closable manner so as to increase the instantaneous flow of the inner ring air circuit and/or the outer ring air circuit during quick-frying;

the plug valve is arranged at the inner ring air channel and the outer ring air channel and is configured to open and close the inner ring air channel and/or the outer ring air channel and start quick-frying.

One embodiment of the present utility model has the following advantages or benefits:

the valve cover comprises a body, a central hole and a cover-shaped part. The cover-shaped part is formed by outwards and perpendicularly arranging one surface of the body and is used for being matched with the valve body so as to form an installation space. The cover-shaped part is provided with a 0-degree limiting block, a 90-degree limiting block and a 180-degree limiting block in the clockwise direction at the position close to the bottom, and gaps are formed between the roots of all the limiting blocks and the bottom of the cover-shaped part to form grooves. When the groove enables the plug valve to rotate to 90 degrees to be limited, the plug valve cannot be pressed down due to the fact that the valve cover is limited when the plug valve is rotated downwards again, the plug valve can be pressed down continuously, quick-frying is started, and accordingly user pressing quick-frying experience is guaranteed.

And then make the plug valve with above-mentioned valve gap, and have the cooking utensils of above-mentioned plug valve, can normally start the stir-fry function for user's pushes down the stir-fry and experiences well.

Drawings

The above and other features and advantages of the present utility model will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.

FIG. 1 is a schematic perspective view of a valve cover at an angle according to an exemplary embodiment;

FIG. 2 is a schematic perspective view of the valve cover shown in FIG. 1 at another angle;

FIG. 3 is a schematic front view of the valve cover according to FIG. 1;

FIG. 4 is a schematic assembly view of a plug valve according to an exemplary embodiment;

FIG. 5 is a schematic part exploded view of the plug valve shown in FIG. 4;

FIG. 6 is a schematic assembly view of the valve cover, valve shaft, limit dials, and micro switch press pieces shown in FIG. 5 assembled together;

FIG. 7 is a partial schematic view of the plug valve according to FIG. 4;

FIG. 8 is a schematic perspective view of the valve cartridge shown in FIG. 4;

fig. 9 is a schematic cross-sectional view of a plug valve applied to a kitchen range according to an exemplary embodiment.

Wherein reference numerals are as follows:

1 a kitchen range, which comprises a kitchen range,

a 100-degree plug valve is provided with a plug,

10 valve cover, 11 body, 12 central hole, 13 valve cover rubber ring, 14 cover shape part, 1410 degree limit block, 14290 degree limit block, 143180 degree limit block, 144 groove, 145 first limit block, 146 slope, 147 rotation surface,

a0 degree limit, start position, B90 degree limit, big fire position, C180 degree limit, small fire position,

20 valve shaft, 21 valve shaft rubber ring,

30 the spacing plectrum is arranged on the base plate,

the pressing sheet of the 40 micro-switch,

50 valve core, 51 magnet, 52 air outlet hole,

a first micro-switch 60 is provided which,

a second micro-switch 70 is provided to provide a second signal,

the valve body 80 is provided with a valve,

90, the magnetic encoder, 91 upper housing,

200 an inner ring air circuit,

300 the outer ring air path,

400 quick-frying air-supplementing air circuit,

500 pressure stabilizing valve.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus detailed descriptions thereof will be omitted.

The terms "a," "an," "the," and "said" are used to indicate the presence of one or more elements/components/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. in addition to the listed elements/components/etc.

1-3, FIG. 1 is a schematic perspective view of a valve cover at an angle according to an exemplary embodiment. Fig. 2 is a schematic perspective view of the valve cover according to fig. 1 at another angle. Fig. 3 is a schematic front view of the valve cover according to fig. 1.

Referring also to fig. 2-3, as shown in fig. 1, a valve cover 10 in accordance with an embodiment of the present utility model may generally include: a body 11, a central hole 12 and a cover 14. A center hole 12 is provided at a center position of the body 11 and penetrates the body 11 for passing through the valve shaft. The cover 14 is formed perpendicularly to one surface of the body 11 to be matched with the valve body to form an installation space. Wherein, the position of the cover 14 near the bottom is provided with a0 degree limit 141, a 90 degree limit 142 and a 180 degree limit 143 in a clockwise direction, and the root of the limit is provided with a gap from the bottom of the cover 14 to form a groove 144.

As shown in fig. 3, where the a position represents a0 degree limit, the start position. The position B represents 90-degree limit and the position of the big fire. The C position represents 180 degrees of limit and the light fire position.

More specifically, the grooves 144 are designed in the valve cover 10 such that the depth of the grooves 144 is within + -1 mm of the press down stroke, typically 3.5mm of the press down stroke, and the depth of the grooves 144 is between 2.5mm and 4.5 mm.

The groove 144 is used for preventing the plug valve from being pressed down due to the limit in the valve cover 10 when the plug valve rotates to 90 degrees to limit and then continuously rotates downwards, so that the quick-frying is started, and the user's pressing quick-frying experience is ensured.

In the process of realizing the utility model, the inventor also finds that the existing valve cover is also provided with a limiting step between the limiting blocks of 0 degrees and 180 degrees. When the existing plug valve is turned from small fire to big fire, the limiting pulling piece interferes with the limiting step in the valve cover in the rotation process, the limiting pulling piece is inclined all the time, the limiting pulling piece interferes with the micro-switch pressing piece, the micro-switch pressing piece swings greatly, the micro-switch pulling piece is fluctuated, the micro-switch pulling piece is contacted with the micro-switch piece, the micro-switch is mistakenly touched, the quick-frying micro-switch is abnormally started, and the use experience of a user is influenced. Based on this, the first and second light sources,

in a preferred embodiment of the present utility model, as shown in fig. 1, referring to fig. 2 to 3, a first stop 145 is disposed at a partial position between the 0 degree stop 141 and the 90 degree stop 142 in the cover 14, a slope 146 is formed between a position where a start point (left position) of the first stop 145 is located and a position where an end point (right position) of the first stop 145 is located, a slope of the end point position of the first stop 145 is 0, and a rotation surface 147 is formed between the end point position of the first stop 145 and the 180 degree stop 143.

In this embodiment, as shown in fig. 1, referring to fig. 2-3, the limiting step of the valve cover in the prior art is modified into a partial first limiting block 145, and a slope 146 is designed in the first limiting block 145. The slope 146 acts on, and spacing plectrum 30 is spacing at initial 0 degree position, and it is spacing to leave 0 degree after pushing down the knob, gives a smooth transition to spacing plectrum 30, guarantees 0 degree spacing effect, guarantees simultaneously to push down and leave spacing back, and spacing plectrum 30 upwards lifts under the effect of spring for spacing plectrum 30 gets back to initial position.

More specifically, as shown in fig. 1, referring to fig. 2 to 3, the gradient of the end position of the first limiting block 145 is 0, and a rotation surface 147 is formed between the end position of the first limiting block 145 and the 180-degree limiting block 143, so that the limiting step in the prior art is eliminated in this range. In the rotation process, the limit pulling piece 30 is flat from the slope 146, so that interference is avoided, swing of the micro-switch pressing piece 40 is reduced, and the problem that the micro-switch pressing piece 40 fluctuates when rotating from a high fire position to a low fire position or vice versa is solved.

As shown in fig. 4-8, fig. 4 is a schematic assembly view of a plug valve according to an exemplary embodiment. Fig. 5 is a schematic exploded view of the plug valve according to fig. 4. Fig. 6 is a schematic assembly view of the valve cover, valve shaft, limit dials, and micro switch press pieces shown in fig. 5 assembled together. Fig. 7 is a partial schematic view of the plug valve according to fig. 4. Fig. 8 is a schematic perspective view of the valve cartridge shown in fig. 4.

When the plug valve in the prior art rotates to 90 degrees, structural limit is arranged in the valve cover according to standard requirements, and the situation that the plug valve cannot be pressed down due to limit exists when the plug valve passes through 90 degrees, so that the quick-frying function cannot be realized, and the user pressing quick-frying experience is affected. Based on this, the first and second light sources,

referring to fig. 5, and referring also to fig. 4 and 6-8, the present embodiment provides a plug valve 100, which may generally include: the valve comprises a valve cover 10, a valve shaft 20, a limiting pulling piece 30, a micro-switch pressing piece 40, a valve core 50, a first micro-switch 60, a second micro-switch 70, a valve body 80 and a magnetic encoder 90. The valve cover 10 includes a body 11, a central bore 12, and a cap 14. A center hole 12 is provided at a center position of the body 11 and penetrates the body 11 for passing through the valve shaft 20. The cover 14 is formed perpendicularly outward from a surface of the body 11 for mating with the valve body 80 to form an installation space. The cover 14 is provided with a 0-degree stopper 141, a 90-degree stopper 142, and a 180-degree stopper 143 in a clockwise direction at a position near the bottom. Gaps are provided between the roots of all the stoppers from the bottom of the cover 14 to form grooves 144. The valve shaft 20 is mounted at the central bore 12 of the valve cover 10 so as to be freely rotatable with respect to the central bore 12. The limit dial 30, the micro switch presser 40 and the valve core 50 are installed at the valve shaft 20 in the order from top to bottom. The limiting pulling piece 30 and the valve core 50 rotate along with the valve shaft 20, so that the limiting pulling piece 30 rotates between limiting blocks of the valve cover 10. The valve shaft 20 drives the valve core 50 to rotate so as to open and close the plug valve 100. The first micro switch 60 is disposed under the valve cover 10 and is matched with the limit dial 30 to control ignition. The second micro-switch 70 is disposed under the valve cover 10 and is matched with the micro-switch pressing sheet 40 to control the quick-frying. The valve body 80 is mated with the valve cover 10 to form an installation space. A magnetic encoder 90 is provided below the valve body 80, matching with the magnet 51 in the valve cartridge 50, to achieve angle detection.

In this embodiment, the valve cover is improved based on the existing plug valve, and in this embodiment, no improvement is made on other parts. The working principle among other parts is the same as that of the plug valve in the prior art, and the working principle of the other parts is not repeated in this embodiment.

More specifically, as shown in FIG. 1, and referring also to FIGS. 2-3, the grooves 144 are designed in the valve cover 10 such that the groove 144 has a depth within the range of the hold-down stroke of + -1 mm, typically between 2.5mm and 4.5mm in accordance with the hold-down stroke of 3.5 mm.

The groove 144 is used for preventing the plug valve 100 from being pressed down due to the limit in the valve cover 10 when the plug valve 100 rotates to 90 degrees to limit and then continuously rotates downwards, so that the quick-frying is started, and the user's pressing-down quick-frying experience is ensured.

In the process of realizing the utility model, the inventor also finds that the existing valve cover is also provided with a limiting step between the limiting blocks of 0 degrees and 180 degrees. When the existing plug valve is turned from small fire to big fire, the limiting pulling piece interferes with the limiting step in the valve cover in the rotation process, the limiting pulling piece is inclined all the time, the limiting pulling piece interferes with the micro-switch pressing piece, the micro-switch pressing piece swings greatly, the micro-switch pulling piece is fluctuated, the micro-switch pulling piece is contacted with the micro-switch piece, the micro-switch is mistakenly touched, the quick-frying micro-switch is abnormally started, and the use experience of a user is influenced. Based on this, the first and second light sources,

in a preferred embodiment of the present utility model, as shown in fig. 1, referring to fig. 2-3 and fig. 6-7, a first limiting block 145 is disposed at a partial position between the 0 degree limiting block 141 and the 90 degree limiting block 142 in the cover portion 14, a slope 146 is formed between a position of a starting point of the first limiting block 145 and a position of an ending point of the first limiting block 145, and a slope of the ending point of the first limiting block 145 is 0, so that the limiting dial 30 is smoothly transited, and a rotation surface 147 is disposed between the ending point of the first limiting block 145 and the 180 degree limiting block 143, so that the limiting dial 30 slides flatly in the valve cover 10.

In this embodiment, as shown in fig. 1, referring to fig. 2-3 and fig. 6-7, the limiting step of the valve cover in the prior art is modified into a partial first limiting block 145, and a slope 146 is designed in the first limiting block 145. As shown in fig. 6, the slope 146 acts to limit the limiting pulling piece 30 at the initial 0 degree position, and after the knob is pressed down, the limiting pulling piece 30 is separated from the initial 0 degree position, so that a smooth transition is given to the limiting pulling piece 30, the 0 degree limiting effect is ensured, and meanwhile, after the knob is pressed down and separated from the limiting pulling piece 30 is ensured to be lifted upwards under the action of the spring, so that the limiting pulling piece 30 returns to the initial position.

More specifically, as shown in fig. 1, referring to fig. 2-3 and fig. 6-7, the gradient of the end position of the first limiting block 145 is 0, and the rotation surface 147 is formed between the end position of the first limiting block 145 and the 180-degree limiting block 143, so that the limiting step in the prior art is eliminated in this range. As shown in fig. 6, during rotation, the limit paddle 30 is flat from the back of the ramp 146, avoiding interference, reducing the swing of the micro-switch presser 40, avoiding the problem of the micro-switch presser 40 waving from the high fire position to the low fire position or vice versa.

The inventor has found in the practice of the present utility model that prior art plug valve control sections are typically magnet controlled by a spool assembly while an induction encoder is provided at the bottom of the valve body. When the magnet is assembled, voltage mutation exists in the cells due to the influence of the magnetic pole N, S, and the explosion stir-frying angle error is caused, so that the user cannot realize explosion stir-frying at the original explosion stir-frying angle, and the use experience of the user is influenced. Based on this, the first and second light sources,

in a preferred embodiment of the present utility model, as shown in fig. 8, the valve cartridge 50 further includes an air outlet hole 52 provided in a radial direction of the valve cartridge 50, provided at a position close to the magnet 51, and penetrating the valve cartridge 50 for positioning.

In the assembling process of the valve core 50 and the magnet 51, the magnet 51 attracts the N pole or the S pole through a tool in the assembling process, and the gas outlet 52 of the valve core 50 is used for positioning, so that when the valve core 50 rotates to the quick-frying position, the range of the N pole plus or minus 30 degrees is not in the range when the valve core 50 is usually defined as the 90-degree big fire position, and the angle error of the quick-frying is avoided when the range is in the crossing range of 0-360 degrees.

The inventor also finds that in the process of realizing the utility model, when the existing plug valve is used, due to the magnetic induction distance requirement, the design of the magnet and the magnetic encoder has the induction distance of 1mm-10mm, the induction distance section is designed to be short, the water resistance and insect prevention are not well realized in the induction distance, and the integral encoder is easy to feed water or insects, so that the integral function is invalid. Based on this, the first and second light sources,

in a preferred embodiment of the present utility model, as shown in fig. 4, a rubber ring 21 of the valve shaft is provided at the valve shaft 20 to prevent water from entering the inside of the plug valve 100 along the valve shaft 20.

More specifically, as shown in fig. 4, a rubber ring 13 of the valve cover is provided at the center hole 12 of the valve cover 10 to prevent water from entering the first and second micro-switches 60 and 70 along the valve cover 10.

More specifically, as shown in fig. 4, the magnetic encoder 90 includes an upper case 91, and the upper case 91 is sized larger than the magnetic encoder 90 to be waterproof, and ribs are provided in the upper case 91 to prevent insects.

In this embodiment, the whole plug valve 100 is designed with a 3-weight waterproof structure in terms of structural design, so as to ensure that the micro-switch connection and the micro-motion reliability in the use process of the magnetic encoder 90 are ensured.

As shown in fig. 9, fig. 9 is a schematic cross-sectional view illustrating the application of the plug valve to a kitchen range according to an exemplary embodiment.

The kitchen range 1 of the embodiment of the utility model comprises the plug valve 100. The structure of the plug valve 100 in this embodiment is the same as that of the plug valve 100 in the above embodiment, and the structural parts of the plug valve 100 in this embodiment are not described in detail. The stove 1 in the embodiment is provided with the plug valve 100, so that the quick-frying function can be normally started through the plug valve 100, and the user can have good pressing quick-frying experience.

More specifically, as shown in fig. 9, the hob 1 generally further comprises: an inner ring air circuit 200, an outer ring air circuit 300 and an explosion stir-frying air supplementing air circuit 400. The inner ring gas circuit 200 is used to generate an inner ring flame. The outer ring gas circuit 300 is used to generate an outer ring flame. The pressure stabilizing valve 500 is arranged in the quick-frying air supplementing air circuit 400, and the pressure stabilizing valve 500 is configured to be communicated with the inner ring air circuit 200 and/or the outer ring air circuit 300 in an openable and closable manner so as to increase the instantaneous flow of the inner ring air circuit 200 and/or the outer ring air circuit 300 during quick-frying. The plug valve 100 is disposed at the inner ring air channel 200 and the outer ring air channel 300, and is configured to open and close the inner ring air channel 200 and/or the outer ring air channel 300, and start stir-frying.

The control principle of the plug valve 100 and the control principle of the pressure stabilizing valve 500 are the same as those of the plug valve and the pressure stabilizing valve in the prior art, and the above control principle is not repeated in this embodiment.

In embodiments of the present utility model, the term "plurality" refers to two or more, unless explicitly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly attached, detachably attached, or integrally attached. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.

In the description of the embodiments of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and to simplify the description, and do not indicate or imply that the devices or units referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the embodiments of the present utility model.

In the description of the present specification, the terms "one embodiment," "a preferred embodiment," and the like, mean 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 do not necessarily refer 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.

The above is only a preferred embodiment of the present utility model and is not intended to limit the embodiment of the present utility model, and various modifications and variations can be made to the embodiment of the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present utility model should be included in the protection scope of the embodiments of the present utility model.

Claims (10)

1. A valve cover, comprising:

a body (11);

a center hole (12) provided at a center position of the body (11) and penetrating the body (11) for passing through a valve shaft; and

a cover-shaped part (14) which is formed by a surface of the body (11) vertically outwards and is used for matching with the valve body so as to form an installation space;

the cover-shaped part (14) is provided with a 0-degree limiting block (141), a 90-degree limiting block (142) and a 180-degree limiting block (143) in the clockwise direction at the position close to the bottom, and gaps are formed between the root parts of the limiting blocks and the bottom of the cover-shaped part (14) to form grooves (144).

2. The valve cover according to claim 1, wherein a first limiting block (145) is arranged at a partial position between the 0-degree limiting block (141) and the 90-degree limiting block (142) in the cover-shaped portion (14), a slope (146) is formed between a position of a starting point in the first limiting block (145) and a position of an ending point in the first limiting block (145), a gradient of an ending point position of the first limiting block (145) is 0, and a rotating surface (147) is arranged between the ending point position of the first limiting block (145) and the 180-degree limiting block (143).

3. A plug valve, comprising:

the valve cover (10) comprises a body (11), a central hole (12) and a cover-shaped part (14), wherein the central hole (12) is arranged at the central position of the body (11) and penetrates through the body (11) and is used for being formed by a valve shaft (20) in an outward vertical mode, the cover-shaped part (14) is used for being matched with a valve body (80) to form an installation space, a 0-degree limiting block (141), a 90-degree limiting block (142) and a 180-degree limiting block (143) are arranged at the position, close to the bottom, of the cover-shaped part (14) in the clockwise direction, and a gap is formed between the root parts of the limiting blocks and the bottom of the cover-shaped part (14) to form a groove (144);

a valve shaft (20) mounted at a central hole (12) of the valve cover (10) and freely rotatable with respect to the central hole (12);

the valve comprises a limiting poking piece (30), a micro switch pressing piece (40) and a valve core (50), wherein the limiting poking piece (30) and the valve core (50) are arranged at the valve shaft (20) in sequence from top to bottom, the limiting poking piece (30) and the valve core (50) rotate along with the valve shaft (20) so that the limiting poking piece (30) rotates between limiting blocks of the valve cover (10), and the valve shaft (20) drives the valve core (50) to rotate so as to realize opening and closing of the plug valve (100);

the first micro switch (60) is arranged below the valve cover (10) and matched with the limit poking piece (30) so as to control ignition;

the second micro switch (70) is arranged below the valve cover (10) and matched with the micro switch pressing sheet (40) so as to control quick-frying;

a valve body (80) which is matched with the valve cover (10) to form an installation space; and

and the magnetic encoder (90) is arranged below the valve body (80) and matched with the magnet (51) in the valve core (50) so as to realize angle detection.

4. A plug valve according to claim 3, wherein a first limit block (145) is provided at a partial position between the 0 degree limit block (141) and the 90 degree limit block (142) in the cover portion (14), a slope (146) is formed between a position where a start point is located and a position where an end point is located in the first limit block (145), a slope of the end point of the first limit block (145) is 0, so that the limit dial (30) is smoothly transited, and a rotation surface (147) is provided between the end point of the first limit block (145) and the 180 degree limit block (143), so that the limit dial (30) is smoothly slid in the valve cover (10).

5. A plug valve according to claim 3, wherein the valve core (50) further comprises an air outlet hole (52) arranged in a radial direction of the valve core (50), arranged at a position close to the magnet (51), penetrating the valve core (50) for positioning.

6. A plug valve according to claim 3, wherein a rubber ring is provided at the valve shaft (20) to prevent water from entering the interior of the plug valve (100) along the valve shaft (20).

7. A plug valve according to claim 3, characterized in that a rubber ring is provided at the central hole (12) of the valve cover (10) to prevent water from entering the first micro switch (60) and the second micro switch (70) along the valve cover (10).

8. Plug valve according to any one of claims 3-7, characterized in that the magnetic encoder (90) comprises an upper shell (91), the upper shell (91) being sized larger than the magnetic encoder (90) for waterproofing, ribs being provided in the upper shell (91) for protection against insects.

9. A hob, characterized in, that it comprises a plug valve (100) according to any one of the claims 3 to 8.

10. The hob according to claim 9, characterized in, that the hob (1) further comprises:

an inner ring gas circuit (200) for generating an inner ring flame;

an outer ring gas circuit (300) for generating an outer ring flame;

the quick-frying air supplementing gas circuit (400) is provided with a pressure stabilizing valve (500) which is configured to be communicated with the inner ring gas circuit (200) and/or the outer ring gas circuit (300) in an openable and closable manner so as to increase the instantaneous flow of the inner ring gas circuit (200) and/or the outer ring gas circuit (300) during quick-frying;

the plug valve (100) is arranged at the inner ring air channel (200) and the outer ring air channel (300) and is configured to open and close the inner ring air channel (200) and/or the outer ring air channel (300) and start quick-frying.