CN209857118U - Adjusting device for kitchen range and kitchen range with adjusting device - Google Patents

Abstract

The utility model provides an adjusting device for cooking utensils and cooking utensils that have this adjusting device. The adjusting device comprises: an ignition knob including a first magnetic body; a regulating valve including a valve body, a valve stem, and a second magnetic body, wherein a first end of the valve stem is connected to the valve body and is rotatable with respect to the valve body, the second magnetic body is connected to a second end of the valve stem opposite to the first end, one of the first magnetic body and the second magnetic body is a magnet, and the other is a magnetic member formed of a magnetic material, the magnetic member being capable of being attracted by the magnet; and a position sensor for detecting a rotation angle of the valve stem. The rotation angle of the valve rod is detected by the position sensor, so that the ignition knob can be quickly and accurately placed in place when the ignition knob is separated from a preset position, the rotation angles of the ignition knob and the valve rod are consistent, and the firepower of the stove is accurately adjusted; and the firepower of the cooker can be accurately determined, so that a user can clearly master the current firepower of the cooker.

Description

Adjusting device for kitchen range and kitchen range with adjusting device

Technical Field

The utility model relates to a technical field of kitchen utensil specifically relates to an adjusting device for cooking utensils and cooking utensils that have this adjusting device.

Background

The kitchen range becomes a necessary product in daily life. The traditional kitchen range is provided with an ignition knob, and the ignition knob can enable a user to conveniently select the working level of the kitchen range.

The ignition knob is arranged on a valve rod of the adjusting valve and used for adjusting the gas flow delivered to a burner of the stove. The regulating valve is usually disposed below the cooktop panel (usually a glass panel), and the ignition knob is disposed above the cooktop panel, so a through hole needs to be formed in the cooktop panel to allow the valve rod to pass through the through hole to be connected with the ignition knob above the cooktop panel.

As the through hole is needed to be arranged on the panel of the cooker, water and dirt can easily enter the cooker through the through hole in the use process. Once the dirt enters the stove, the dirt can not be cleaned any more, and a sanitary dead angle is formed. The accumulation of dirt for a long time can be troublesome to operate the ignition knob and sometimes even cause damage to the internal parts of the cooktop.

The prior art provides a solution for magnetically attracting the ignition knob to the regulator valve to form a linkage. However, the user may remove the ignition knob during routine cleaning, and when the ignition knob is again attracted to the regulator valve, it is necessary to ensure that the rotation angle of the ignition knob corresponds to the fire position of the regulator valve. More troublesome is that once the ignition knob is removed during use of the hob, it takes some effort to be able to correspond the rotation angle of the ignition knob to the fire gear of the regulating valve. Otherwise, if the rotation angle of the ignition knob does not correspond to the firepower gear of the regulating valve, the firepower regulation may be disordered, which brings inconvenience to the user and makes the user experience extremely bad.

SUMMERY OF THE UTILITY MODEL

In order to at least partially solve the problems existing in the prior art, according to one aspect of the present invention, there is provided an adjusting device for a cooking appliance, comprising: an ignition knob including a first magnetic body; a regulating valve including a valve body, a valve stem, and a second magnetic body, wherein a first end of the valve stem is connected to the valve body and is rotatable with respect to the valve body, the second magnetic body is connected to a second end of the valve stem opposite to the first end, one of the first magnetic body and the second magnetic body is a magnet, and the other is a magnetic member formed of a magnetic material, the magnetic member being attractable by the magnet; and a position sensor for detecting a rotation angle of the valve stem. The rotation angle of the valve rod is detected by the position sensor, so that the ignition knob can be quickly and accurately placed in place when the ignition knob is separated from a preset position, the rotation angles of the ignition knob and the valve rod are consistent, and the firepower of the stove is accurately adjusted; and the firepower of the cooker can be accurately determined, so that a user can clearly master the current firepower of the cooker, various requirements of the user are met, and the user experience is good.

Illustratively, the magnet is a ring magnet. The annular magnet can attract with magnetic part each other, provides even torque, makes ignition knob and governing valve firm in connection to the revolving force that the peripheral portion of annular magnet drove magnetic part is bigger.

Illustratively, the first magnetic body is a magnet, and the second magnetic body is a magnetic member, so as to facilitate processing and manufacturing.

Illustratively, the second magnetic body has a disk shape. Thus, the space occupied by the second magnetic body when the valve rod rotates can be reduced, so that the installation of other components below the panel of the cooker is not influenced.

Illustratively, the position sensor is an angle sensor, and the angle sensor is sleeved on the valve rod. The angle sensor has the advantages of small structure, small occupied space and convenience in installation.

Illustratively, the position sensor is a torque sensor, the torque sensor is sleeved on the valve rod, one end of the torque sensor is connected to the valve body, and the other end of the torque sensor is connected to the valve rod. The torque is the most frequently involved parameter in a rotating power system, the types of the torque sensors are more, the process is mature, and therefore the appropriate torque sensor can be selected according to the requirement.

Illustratively, a laser mark is arranged on the valve rod, the position sensor is a laser sensor, the laser sensor is arranged around the valve rod, and the laser sensor determines the rotation angle of the valve rod according to the laser mark. The laser sensor can realize non-contact measurement and has the advantages of high detection speed, high precision, strong anti-interference capability and the like.

According to another aspect of the utility model, still provide a cooking utensils, include: a cooktop panel; any one of the above adjusting devices, wherein the adjusting valve is disposed below the cooktop panel, the ignition knob is disposed above the cooktop panel, and the ignition knob and the adjusting valve attract each other; a display device disposed on the cooktop panel; and a control device connected to the position sensor and the display device, the control device controlling the display device to display content associated with the rotation angle. The rotation angle of the valve rod is detected through the position sensor, and the content related to the rotation angle is displayed on the display device, so that the ignition knob can be quickly and accurately placed in place when the ignition knob is separated from a preset position, the rotation angles of the ignition knob and the valve rod are consistent, and the fire power of the stove is accurately adjusted; and the firepower of the cooker can be accurately determined, so that a user can clearly master the current firepower of the cooker, various requirements of the user are met, and the user experience is good.

The display device is a display screen capable of displaying numbers, and is used for displaying the rotation angle of the valve rod and/or the fire gear of the cooker. Therefore, the user can clearly know the rotating angle of the valve rod and/or the numerical value of the fire gear of the cooker on the display screen, so that the prompt can be obtained more intuitively and effectively.

Illustratively, an alignment mark is arranged on the cooker panel and used for prompting the placement position of the ignition knob. The user can intuitively and clearly know the placement position of the ignition knob, thereby facilitating the use of the user.

A series of concepts in a simplified form are introduced in the disclosure, which will be described in further detail in the detailed description section. The summary of the invention is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

The advantages and features of the present invention are described in detail below with reference to the accompanying drawings.

Drawings

The following drawings of the present invention are used herein as part of the present invention for understanding the present invention. There are shown in the drawings, embodiments and descriptions thereof, which are used to explain the principles of the invention. In the drawings, there is shown in the drawings,

fig. 1 is a partial schematic view of a cooktop according to an exemplary embodiment of the present invention; and

fig. 2 is a partial schematic view of a cooktop according to another exemplary embodiment of the present invention.

Wherein the figures include the following reference numerals:

100. a cooktop panel; 110. an ignition knob; 112. a first magnetic body; 114. a knob base; 116. a knob housing; 120. adjusting a valve; 122. a valve body; 124. a valve stem; 126. a second magnetic body; 130. a position sensor; 140. a display device; 210. laser marking; 220. a laser sensor.

Detailed Description

In the following description, numerous details are provided to provide a thorough understanding of the present invention. One skilled in the art, however, will understand that the following description illustrates only a preferred embodiment of the invention and that the invention may be practiced without one or more of these details. In addition, some technical features that are well known in the art are not described in detail in order to avoid obscuring the present invention.

The utility model provides an adjusting device for cooking utensils. The fire power of the cooker can be adjusted by manually rotating the ignition knob of the adjusting device by a user, and the fire power comprises a fire-off, a small fire, a medium fire, a big fire and any fire power between the fire-off, the small fire, the medium fire and the big fire, a limit big fire (used for stir-frying) and the like. The adjusting device can be used for a gas stove. The adjustment device can also be used for induction cookers, if possible. The structure of the adjusting device for adjusting the fire part of the cooking appliance is already known in the art, and the improvement point of the invention is not in this, therefore, the structure of this part will not be described in detail.

In fig. 1 is shown an adjustment device according to one embodiment of the invention, which in use is mounted to a cooking appliance panel. The principles of the present invention will be described with reference to the drawings.

The adjustment means may include an ignition knob 110 and a regulator valve 120. In use, the ignition knob 110 is positioned above the cooktop panel 100 and the regulating valve 120 is positioned below the cooktop panel 100.

The ignition knob 110 may include a first magnetic body 112. The regulator valve 120 may include a valve body 122, a valve stem 124, and a second magnetic body 126. One of the first and second magnetic bodies 112 and 126 is a magnet, and the other is a magnetic member formed of a magnetic material. The magnetic member is capable of being attracted by the magnet. The magnet is a permanent magnet, and includes a natural magnet (magnetite), an artificial magnet (alnico), and the like. The magnetic material refers to substances which can directly or indirectly generate magnetism from transition elements such as iron, cobalt, nickel and alloys thereof. The magnetic material can be magnetized when it is close to the magnet, so that the two attract each other.

In the illustrated embodiment, the first magnetic body 112 is a magnet, and the second magnetic body 126 is a magnetic member formed of a magnetic material. In this case, the ignition knob 110 may also include a knob base 114. The first magnetic body 112 may be disposed on the knob base 114. In the illustrated embodiment, the first magnetic body 112 may be disposed at the bottom of the knob base 114, so that the first magnetic body 112 can directly attract the adjusting valve 120 only through the cooktop panel 100, ensuring that the magnetic attraction force is sufficiently large. In other embodiments not shown, the first magnetic body 112 may also be disposed on top of the knob base 114 or in the knob base 114. The installation manner of the first magnetic body 112 shown in the drawings is only exemplary, and therefore does not constitute a limitation of the present invention, as long as the first magnetic body 112 can provide a sufficiently large magnetic attraction force to rotate the valve rod of the regulating valve 120.

Additionally, the ignition knob 110 may also include a knob housing 116. Illustratively, the knob housing 116 may be an open-bottomed cylinder, as shown in FIG. 1. The first magnetic body 112 and the knob base 114 are accommodated in the knob housing 116. The knob base 114 is connected to a knob housing 116. The knob housing 116 protects the first magnetic body 112 and the knob base 114. The user can rotate the first magnetic member 112 by operating the knob case 116. In the illustrated embodiment, the knob housing 116 has a semi-enclosed construction with the purpose of ensuring that the magnetic attraction with the regulator valve 120 is sufficiently large. In other embodiments, not shown, the knob housing 116 may have a fully enclosed structure to enclose the first magnetic body 112 and the knob base 114 therein, so that daily cleaning is more convenient, if sufficient magnetic attraction force can be ensured.

In the case where the first magnetic body 112 is a magnetic member formed of a magnetic material, the knob base 114 is not required, and the first magnetic body 112 may be directly connected to the knob housing 116. Illustratively, the first magnetic body 112 may be coupled to a bottom portion of the knob housing 116.

The valve stem 124 has oppositely disposed first and second ends. A first end of a valve stem 124 is connected to the valve body 122. Typically, the valve body 122 includes a valve housing and a valve spool. The valve core is rotatable relative to the valve housing within the valve housing to regulate the amount of gas passing through the valve body 122. In the embodiment that the stove is an electromagnetic stove, the amount of current led into the stove can be adjusted through the rotation of the valve core. The first end of the valve stem 124 is actually connected to the valve spool, and the valve stem 124 rotates the valve spool within the valve housing. The valve stem 124, as a whole, is rotatable relative to the valve body 122. A second magnetic body 126 is coupled to a second end of the valve stem 124.

The second magnetic body 126 may be directly connected to the valve stem 124 or may be connected to the valve stem 124 through an intermediate member. In the illustrated embodiment, the second magnetic body 126 is a magnetic member, such as an iron plate, and the second magnetic body 126 may be conveniently directly connected to the valve stem 124. In other embodiments not shown, when the second magnetic body 126 is a magnet, the second magnetic body 126 may be connected to the valve stem 124 through an intermediate member. In this case, the second magnetic body 126 may be disposed on the top of the middle member so that the second magnetic body 126 can directly attract the first magnetic body 112 of the ignition knob 110 only through the cooktop panel 100, ensuring that the magnetic attraction force is sufficiently large. The second magnetic body 126 may be provided at the bottom of the valve base or in the valve base. Illustratively, the intermediate member may be a disc-shaped base disposed at the second end of the valve stem 124.

Obviously, the first magnetic body 112 is a magnetic body, and the second magnetic body 126 is a magnetic member, so that the processing and manufacturing are more convenient. In addition, attaching more components to the top of the valve stem 124 may require mechanical properties of the valve stem 124, which may result in increased manufacturing costs.

Illustratively, in the installed state, the valve body 122 is fixed below the cooktop panel 100, and the magnetic forces generated by the first and second magnetic bodies 112 and 126 attract each other, so that when the user rotates the ignition knob 110, the valve stem 124 can be rotated accordingly. For ease of user operation, the ignition knob 110 is configured to be rotatable between 0-120 degrees. Accordingly, the range of rotation of the valve stem 124 may also be 0-120 degrees. The valve stem 124 is rotated to different angles and the cooktop can have different firepower.

Furthermore, the adjustment device comprises a position sensor 130, as shown in fig. 1. The position sensor 130 is used to detect the rotational angle of the valve stem 124. Thus, even if the ignition knob 110 is out of the predetermined position attracted to the regulator valve 120 during use, the user is able to clearly understand the angle of rotation of the valve stem 124 and can quickly place the ignition knob 110 in a position such that the angle of rotation of the ignition knob 110 corresponds to the current angle of rotation of the valve stem 124. The angle of rotation of the ignition knob 110 may be determined by indicia provided on the cooktop panel 100 and/or the ignition knob 110. Exemplarily, an angle scale may be provided on the cooktop panel 100 around the ignition knob 110; an initial position indicator corresponding to an initial position (corresponding to a fire shut off) may be provided on the ignition knob 110. When the initial position index is aligned with the angle scale of 0 degrees, the rotation angle of the ignition knob 110 is 0 degrees; when the initial position index is aligned with the 90 degree angle scale, the rotation angle of the ignition knob 110 is 90 degrees. Thereby, the rotation angle of the ignition knob 110 is determined.

In addition, since the cookers have different firepowers when the valve rod 124 is rotated to different angles, the firepower of the cookers can also be determined by determining the rotation angle of the valve rod 124. Alternatively, the rotation angle of the valve stem 124 may be proportional to the amount of fire of the cooktop. Alternatively, the rotational angle of the valve stem 124 may be piecewise proportional to the rotational angle of the valve stem 124. For example, in a conventional cooker, when the valve rod 124 rotates in a range of 0 degree to about 90 degrees, the fire power is proportional to the rotation angle of the valve rod 124; when the valve stem 124 is rotated in a range of about 90 to 120 degrees (or other), the amount of fire is inversely proportional to the angle of rotation of the valve stem 124.

Therefore, the rotation angle of the valve rod 124 is detected by the position sensor 130, so that the ignition knob 110 can be quickly and accurately placed in place when the ignition knob 110 is separated from the preset position, the rotation angles of the ignition knob 110 and the valve rod 124 are consistent, and the firepower of the stove is accurately adjusted; and the firepower of the cooker can be accurately determined, so that a user can clearly master the current firepower of the cooker, various requirements of the user are met, and the user experience is good.

The magnet may have various shapes, structures as long as the function thereof can be achieved. Preferably, the magnets may be evenly distributed so as to provide a uniform attractive force. In a preferred embodiment, the magnet is a ring magnet. However, it is merely exemplary and not limiting. The ring magnet can attract the magnetic member to provide uniform torque, so that the ignition knob 110 and the adjusting valve 120 are firmly connected, and the peripheral portion of the ring magnet has a larger rotating force to the magnetic member.

In the above-mentioned preferred embodiment in which the first magnetic body 112 is a magnet and the second magnetic body 126 is a magnetic member, the second magnetic body 126 is preferably in a disk shape, thereby being adapted to the shape of the ignition knob 110, and being capable of reducing the space occupied by the second magnetic body 126 when the valve stem 124 is rotated, so as not to affect the installation of other components below the cooktop panel 100.

In a preferred set of embodiments, the position sensor 130 may be an angle sensor, as shown in FIG. 1. The angle sensor may be sleeved on the valve stem 124. The angle sensor is provided with a through hole through which the valve stem 124 passes so that the angle sensor is fixed to the valve stem 124. For example, the angle sensor may count once per rotation of the valve stem 124 through a certain angle (e.g., 1/16 turns, 1/24 turns, 1/32 turns, etc.). Rotating in the positive direction, and increasing the count; and the rotation is reversed, and the counting is reduced. The construction and the operating principle of the angle sensor are already known in the art and are therefore not described in further detail. The utility model discloses an angle sensor can be present or the various types of angle sensor that probably appear in the future, as long as can detect the rotation angle of valve rod 124 can.

In another set of preferred embodiments, the position sensor 130 may be, for example, a torque sensor. The torque sensor is sleeved on the valve rod 124, one end of the torque sensor is connected to the valve body 122, and the other end is connected to the valve rod 124. Twist angle phase difference sensors are the most common type of torque sensors. The sensor is characterized in that two groups of gears with the same tooth number, shape and installation angle are installed at two ends of a rotating shaft to be measured, and a proximity sensor is installed on the outer side of each gear. When the rotating shaft to be measured rotates, the two groups of sensors can measure two groups of pulse waves, and the torque quantity borne by the rotating shaft to be measured can be calculated by comparing the phase difference of the front edge and the rear edge of the two groups of pulse waves. The torsion angle phase difference type sensor can realize the non-contact transmission of torque signals, and detection signals are digital signals. The rotational angle of the valve stem 124 is then inferred by torque reversal. The torsional angle phase difference sensor listed above is merely exemplary, and the purpose of the list is to aid in understanding the principles of the present invention. The structure and operating principle of the torque sensor are already known in the art and are therefore not described in further detail. The utility model discloses a torque sensor can be present or the various types of torque sensor that probably appear in the future, as long as can detect the moment of torsion after the valve rod 124 is rotatory and deduce the rotation angle of valve rod 124 can.

In yet another set of preferred embodiments, the valve stem 124 may be provided with a laser marking 210, as shown in FIG. 2, in which case the position sensor may be a laser sensor 220. The embodiment shown in fig. 2 is substantially the same as the embodiment shown in fig. 1, except that the position sensor is a laser sensor 220, and the position sensor in fig. 2 is correspondingly required to be provided with a laser mark 210 on the valve stem 124, so that the laser sensor 220 can detect the rotation angle of the valve stem 124. Accordingly, the same reference numerals will be used for the same or similar components in fig. 2 as in fig. 1, and only the differences will be described in detail herein for the sake of brevity.

The laser marker 210 is used to mark a difference between different positions in the circumferential direction on the outer circumferential surface of the valve stem 124, which can be recognized by the laser sensor 220 so that the rotation angle of the valve stem 124 can be determined. The laser sensor 220 is disposed around the valve stem 124. For example, the laser sensor 220 may be disposed on the valve body 122 and spaced apart from a portion of the valve stem 124 near the valve body 122, and the laser marker 210 may be disposed on an outer circumferential surface of the portion of the valve stem 124 near the valve body 122. Alternatively, the laser sensor 220 may be disposed on the lower surface of the valve base 128 and spaced apart from the portion of the valve stem 124 near the valve base 128, and the laser marker 210 may be disposed on the outer peripheral surface of the end of the valve stem 124 near the valve base 128. Of course, the laser sensor 220 may have other positions, as long as the position of the laser marker 210 on the valve stem 124 can be matched with the position of the laser sensor 220, so that the laser sensor 220 can detect the rotation angle of the valve stem 124.

The laser sensor 220 determines the angle of rotation of the valve stem 124 based on the laser markings 210. Specifically, the laser sensor 220 can detect the shape, color, and/or light reflectivity, etc. of the portion of the laser marker 210 that enters the detection area thereof, so as to determine the corresponding rotation angle of the valve stem 124 according to the portion of the laser marker 210. The laser sensor 220 is a sensor for performing measurement using a laser technique, and is composed of a laser, a laser detector, and a measurement circuit. The laser sensor 220 has the advantages of capability of realizing non-contact measurement, high speed, high precision, large measuring range, strong light and electric interference resistance and the like.

In the embodiment shown in fig. 2, the laser markings 210 include light reflectors formed on the valve stem 124 that may have different sizes and/or light reflectivities along the circumferential direction of the valve stem 124. The number of the light reflecting pieces can be more than one, and the number of the light reflecting pieces can also be one. Accordingly, when one (the number of the light reflecting members is plural) or a part (the number of the light reflecting members is one) of the light reflecting members is rotated into the detection area of the laser sensor 220, the light reflecting member reflects the laser light emitted from the laser sensor 220, so that the size and/or the light reflectance of the light reflecting member is detected by the laser sensor 220. Alternatively, the control device may store in advance the size and/or the light reflection rate of the light reflecting member corresponding to the initial position (corresponding to the fire-off), and determine the rotation angle of the valve stem 124 by determining the difference between the currently detected size and/or light reflection rate of the light reflecting member and the size and/or light reflection rate of the light reflecting member at the initial position. Alternatively, the control device may also store the rotation angle of the valve rod 124 corresponding to the reflective members with different sizes and/or reflective ratios in advance, and determine the rotation angle of the valve rod 124 by determining that the size and/or reflective ratio of the currently detected reflective member corresponds to a certain reflective member or a certain part of the reflective member stored in advance. The detection precision of the laser sensor can be improved by adopting the light reflecting piece, so that the laser sensor with higher installation precision is not needed, and the cost is further reduced.

For example, the size and/or reflectivity of the light reflectors into the detection zone of the laser sensor 220 may gradually increase as the rotation angle of the valve stem 124 increases. Since the collimation of the laser beam is high, the detection area thereof can be set narrow, which can allow effective information of only a narrow portion of the light reflecting member to be obtained at a time, and thus the detection accuracy is high. Alternatively, the light reflecting member may be, for example, a fluorescent tape adhered to the valve stem 124. The reflector may also be achieved by painting a reflective paint on the valve stem 124.

In other embodiments not shown, the indicia may comprise a pattern formed on the valve stem having a different shape and/or color along the circumference of the valve stem. The laser sensor can detect the shape and/or color of the current part of the pattern entering the detection area, and further judge the rotating angle of the valve rod corresponding to the current part of the pattern.

For example, the pattern may be a strip formed on the valve stem that becomes progressively larger in size in the axial direction of the valve stem as the valve stem is rotated, e.g., the axial size of the pattern is smallest at an initial position corresponding to a shut-off fire; the axial dimension of the pattern is greatest when the valve stem is rotated to a maximum angle. Alternatively, the pattern may also be a series of dots of different sizes formed on the valve stem.

Alternatively, the pattern may be a band formed on the valve stem that is progressively darker in color as the valve stem is rotated, e.g., the pattern is lightest in color at an initial position corresponding to a shut-off fire; the color of the pattern is darkest when the valve stem is rotated to a maximum angle.

The above mentioned patterns are all two-dimensional patterns. Alternatively, the pattern may be a three-dimensional pattern. The three-dimensional pattern is, for example, a projection and/or a depression formed on the valve stem. For example, the projections and/or recesses may have different sizes and/or colors at different positions in the circumferential direction of the valve stem.

According to another aspect of the utility model, still provide a cooking utensils. The cooker may be a gas cooker such as a natural gas cooker, an artificial gas cooker, a liquefied petroleum gas cooker, or the like, or an electromagnetic cooker, or the like.

The hob includes any one of the adjusting devices described above. Further, the hob further comprises a display device 140 (as shown in fig. 1-2) and a control device (not shown). The display device 140 is used to display contents associated with the rotation angle of the valve stem 124, such as the rotation angle of the valve stem 124, the fire of the cooker, and the like. The control device is connected to the position sensors (including 130 and 220) of the adjustment device and the display device 140. The control device controls the display device 140 to display the content associated with the rotation angle of the valve stem 124. The control device may be provided on the hob, e.g. integrated into a control panel of the hob. For an integrated range having a range hood, the control device may be integrated with a controller of the range hood. The utility model discloses do not prescribe a limit to controlling means's position. Illustratively, the control device may include a control circuit. Illustratively, the control circuit may be built by using electronic components such as comparators, registers, digital logic circuits, etc., or may be implemented by using processor chips such as a single chip, a microprocessor, a Digital Signal Processor (DSP), a Field Programmable Gate Array (FPGA), a Programmable Logic Array (PLA), an Application Specific Integrated Circuit (ASIC), etc., and peripheral circuits thereof.

By displaying content associated with the angle of rotation of the valve stem 124 on the display device 140, a user can intuitively and accurately know the angle of rotation of the valve stem 124 so that the ignition knob 110 can be quickly and accurately placed in position when the ignition knob 110 is disengaged from a predetermined position. In addition, through the content that shows on display device 140, the user can also know the current firepower of cooking utensils, and then can satisfy user's multiple demand, and user experience is good.

Exemplarily, the display device 140 may be disposed below the cooktop panel 100, correspondingly, the portion of the cooktop panel 100 is made of a light-transmissive material. Illustratively, the control device may be disposed around the display device 140, connected with the display device 140.

Preferably, the display device 140 is a display screen capable of displaying numbers for displaying the rotation angle of the valve stem 124 and/or the fire gear of the cooker. The display screen can be an LED display screen or an LCD display screen.

Alternatively, the display device 140 may be a device that can display the fire power of the cooker only by brightness. For example, the display device 140 may include a plurality of indicator lamps, and the amount of fire is displayed by the number of the indicator lamps turned on.

In a preferred embodiment, an alignment indicator (not shown) is provided on the cooktop panel 100 to indicate the placement of the ignition knob 110. Illustratively, the alignment indicia may be a shape that conforms to the shape of the firing knob 110, or any other shape possible. The user can intuitively and clearly understand the placement of the ignition knob 110, thereby facilitating the user's use.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front", "rear", "upper", "lower", "left", "right", "horizontal", "vertical", "horizontal" and "top", "bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner" and "outer" refer to the interior and exterior relative to the contours of the components themselves.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe the spatial relationship of one or more components or features shown in the figures to other components or features. It is to be understood that the spatially relative terms are intended to encompass not only the orientation of the component as depicted in the figures, but also different orientations of the component in use or operation. For example, if an element in the drawings is turned over in its entirety, the articles "over" or "on" other elements or features will include the articles "under" or "beneath" the other elements or features. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". Further, these components or features may also be positioned at various other angles (e.g., rotated 90 degrees or other angles), all of which are intended to be encompassed herein.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, elements, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many more modifications and variations are possible in light of the teaching of the present invention and are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. An adjustment device for a hob, characterized in that it comprises:

an ignition knob (110) including a first magnetic body (112);

a regulating valve (120) including a valve body (122), a stem (124) connected to the valve body at a first end thereof and rotatable with respect to the valve body, and a second magnetic body (126) connected to a second end of the stem opposite to the first end, one of the first and second magnetic bodies being a magnet and the other being a magnetic member formed of a magnetic material, the magnetic member being attractable by the magnet; and

a position sensor (130) for detecting a rotational angle of the valve stem.

2. The adjustment device of claim 1, wherein the magnet is a ring magnet.

3. The adjustment device according to claim 1, characterized in that the first magnetic body (112) is a magnet and the second magnetic body (126) is a magnetic member.

4. The adjustment device according to claim 3, characterized in that the second magnetic body (126) has a disc shape.

5. The adjustment device of claim 1, wherein the position sensor (130) is an angle sensor that is fitted over the valve stem (124).

6. The adjustment device of claim 1, wherein the position sensor (130) is a torque sensor that is mounted on the valve stem (124), one end of the torque sensor being connected to the valve body (122) and the other end being connected to the valve stem.

7. The adjustment device of claim 1, wherein the valve stem (124) has a laser marking (210) disposed thereon, and the position sensor is a laser sensor (220) disposed about the valve stem, the laser sensor determining the angle of rotation of the valve stem based on the laser marking.

8. A hob, characterized in that it comprises:

a cooktop panel (100);

the adjustment device of any one of claims 1-7, wherein the adjustment valve (120) is disposed below the cooktop panel, the ignition knob (110) is disposed above the cooktop panel, the ignition knob and the adjustment valve are mutually attracted;

a display device (140) disposed on the cooktop panel; and

a control device connected to the position sensor and the display device, the control device controlling the display device to display content associated with the angle of rotation.

9. Hob according to claim 8, characterized in that the display means (140) is a display screen capable of digital display for displaying the rotation angle of the valve stem (124) and/or the fire gear of the hob.

10. Hob according to claim 8, characterized in that an alignment mark is provided on the hob panel (100) for indicating the placement position of the ignition knob.