CN109419298B

CN109419298B - Cooking utensil

Info

Publication number: CN109419298B
Application number: CN201710720287.9A
Authority: CN
Inventors: 刘小力; 潘典国; 杨保民; 周忠宝; 何柏锋
Original assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Priority date: 2017-08-21
Filing date: 2017-08-21
Publication date: 2024-05-17
Anticipated expiration: 2037-08-21
Also published as: CN109419298A

Abstract

The present invention provides a cooking appliance, comprising: the device comprises an upper cover, an inner pot, a cleaning component and a stroke control device; the inner pot is positioned below the upper cover and is used for bearing water and materials; the cleaning assembly is capable of reciprocating between a first position and a second position between the upper cover and the inner pan; the driving device is connected with the cleaning assembly and used for driving the cleaning assembly to reciprocate; the stroke control device is connected with the driving device and can stop the driving device when the cleaning assembly moves to the first position and the second position so as to control the movement stroke of the cleaning assembly. This cooking utensil has add stroke control device for the opportunity that drive arrangement stopped the operation corresponds with the extreme point position accuracy of cleaning assembly motion stroke, thereby has guaranteed that cleaning assembly can accurately move to first position and second position, has effectively avoided among the prior art because of cleaning assembly excessive motion or the various adverse effect that the motion produced in place, has improved the reliability in use and the security of product.

Description

Cooking utensil

Technical Field

The invention relates to the technical field of kitchen appliances, in particular to a cooking utensil.

Background

At present, the existing intelligent cooking appliances such as automatic electric rice cookers have the function of washing rice in an inner pot, a cleaning assembly is driven to move downwards by a driving device until cleaning materials in the inner pot realize the cleaning function, and the driving device drives the cleaning assembly to move upwards to reset after cleaning is finished; in the up-and-down reciprocating process, if the cleaning assembly moves down or up excessively, collision friction and other conditions can occur between the cleaning assembly and the inner pot or the upper cover, even the driving device is damaged, and if the cleaning assembly moves down in place, the cleaning effect can be affected, and if the cleaning assembly moves up in place, the cooking process can be affected or other adverse effects can be generated. Therefore, how to precisely control the motion stroke of the cleaning assembly is a highly desirable problem.

Disclosure of Invention

In order to solve at least one of the above problems, an object of the present invention is to provide a cooking appliance.

In order to achieve the above object, the present invention provides a cooking appliance comprising: an upper cover; the inner pot is positioned below the upper cover and is used for bearing water and materials; a cleaning assembly reciprocally movable between a first position and a second position between the upper cover and the inner pan; the driving device is arranged on the upper cover, connected with the cleaning assembly and used for driving the cleaning assembly to reciprocate; and the stroke control device is connected with the driving device and can stop the driving device to operate when the cleaning assembly moves to the first position and moves to the second position so as to control the movement stroke of the cleaning assembly.

According to the cooking utensil provided by the application, the stroke control device is additionally arranged, and the stroke control device can timely stop the driving device when the cleaning assembly moves to the first position and moves to the second position, so that the time when the driving device stops operating corresponds to the end point position of the movement stroke of the cleaning assembly, thereby ensuring that the cleaning assembly can move to the first position and the second position accurately and can only reciprocate between the first position and the second position, effectively avoiding various adverse effects caused by excessive movement or out-of-place movement of the cleaning assembly in the prior art, and improving the use reliability and safety of products; compared with the technical scheme that the time for stopping the operation of the driving device is indirectly judged through the operation time, the time for stopping the operation of the driving device is directly dependent on the position of the cleaning component, so that the situation that the error accumulation is increased due to the increase of the operation times is avoided, the situation that the stroke deviation of the cleaning component is larger and larger is avoided, and the accurate control of the movement stroke of the cleaning component is realized; the driving device is arranged on the upper cover, so that the stability of the driving device is ensured, the driving device is effectively protected, and the influence of substances such as steam in the inner pot on the driving device can be avoided.

Specifically, when the materials are cleaned, the materials such as rice and the like and water are placed in the inner pot, and the cleaning assembly moves downwards to a second position, namely, extends into the inner pot to clean the materials such as rice and the like; after the cleaning is finished, the cleaning component moves upwards to a first position, namely, retracts into the upper cover or retracts to the bottom of the upper cover, so that the normal operation of the cooking process or other processes is prevented from being influenced; the cleaning assembly can reciprocate between a first position and a second position as required under the drive of the driving device; the travel control device can control the movement travel of the cleaning assembly between the first position and the second position, and when the cleaning assembly moves to the first position and the second position, the driving device stops running in time, so that the movement track of the cleaning assembly is accurately controlled between the first position and the second position, the normal running of the working processes such as the cleaning process, the cooking process and the like is ensured, and the conditions such as damage to the cleaning assembly, the inner pot, the upper cover or the driving device and the like caused by forced driving are avoided.

In addition, the cooking appliance in the technical scheme provided by the invention can also have the following additional technical characteristics:

In the above technical solution, the driving device includes: the driving piece is electrically connected with the electric control plate of the cooking appliance; and the transmission assembly is connected with the output shaft of the driving piece and the cleaning assembly so as to drive the cleaning assembly to reciprocate.

The driving device comprises a driving piece and a transmission assembly, the driving piece is electrically connected with the electric control board, and the electric control board controls the start and stop of the driving piece and various operation parameters (such as steering, rotating speed and the like); the driving piece provides a power source, and the transmission assembly converts the rotation of the driving piece into linear motion so as to drive the cleaning assembly to reciprocate up and down.

In the above technical solution, the transmission assembly includes: the rotating piece is sleeved on the output shaft; and the linkage piece is connected with the rotating piece and the cleaning assembly so as to drive the cleaning assembly to reciprocate.

The transmission assembly comprises a rotating piece and a linkage piece; the rotating piece is sleeved on the output shaft and synchronously rotates along with the output shaft, the linkage piece is connected with the rotating piece, the rotation of the rotating piece is converted into linear motion, and then the cleaning assembly is driven to synchronously linearly move, so that the up-and-down reciprocating motion of the cleaning assembly is realized. Because the cleaning component and the linkage component keep synchronous movement, and the linear movement of the linkage component is synchronous with the rotary movement of the rotary component, the linear movement stroke of the linkage component and the rotary movement stroke of the rotary component also accurately correspond to the linear movement stroke of the cleaning component, and when the cleaning component moves to the stroke end (namely the first position and the second position), the linkage component or the rotary component also moves to the stroke end, namely the time from the three movements to the stroke end is accurately corresponding. Therefore, the time when the cleaning assembly moves to the first position and the second position is determined directly according to the movement information (such as the position or the displacement) of the cleaning assembly, or the time when the cleaning assembly moves to the first position and the second position is determined indirectly according to the movement information (such as the running displacement) of the linkage member or the movement information (such as the rotation angle) of the rotation member, the accurate control of the movement stroke of the cleaning assembly can be realized.

In the above technical solution, the stroke control device includes: the first limiting piece is fixedly connected with the rotating piece; and the second limiting piece is fixedly connected with the upper cover and can interfere with the first limiting piece when the cleaning assembly moves to the first position and moves to the second position so as to limit the rotating piece to continue rotating, so that the driving device stops running.

The stroke control device comprises a first limiting piece and a second limiting piece, wherein the first limiting piece is fixed on the rotating piece and rotates synchronously with the rotating piece, and the second limiting piece is fixedly connected with the upper cover and keeps static relative to the rotating piece; when the cleaning component moves to the first position and moves to the second position, the second limiting piece interferes with the first limiting piece (for example, the second limiting piece contacts with the first limiting piece to abut against), so that the first limiting piece cannot move continuously, further the rotating piece is limited to rotate continuously, and the electric control board also stops the driving piece, so that the whole driving device stops running.

Further, the first limiting piece and the second limiting piece interfere with each other when the rotating piece rotates forward and backward, so that the rotating stroke of the rotating piece is smaller than 360 degrees (namely, less than one circle); because the motion amplitude of the rotating piece is relatively smaller, errors are not easy to occur, the control is more accurate, the mechanical limiting structure is simple, and the use is reliable. Therefore, according to the technical scheme, the rotating angle of the rotating piece is controlled in a certain interval through the mechanical limit fit of the first limit piece and the second limit piece, and further, the motion stroke of the cleaning assembly is accurately controlled through the accurate control of the rotating stroke of the rotating piece.

As for the control of the electric control board to stop the driving piece, the control is not particularly limited, and the control can be performed according to time or other feedback information (for example, when the first limiting piece and the second limiting piece are detected to interfere, a signal is sent to the electric control board, and the electric control board stops the driving piece according to the signal).

In the above technical solution, the first limiting member is an arc-shaped protrusion, and an outer edge of the arc-shaped protrusion is close to or flush with an outer periphery of the rotating member; and/or, the second limiting piece is a limiting column, and the limiting column is perpendicular to the rotation axis of the rotating piece.

The first limiting piece is an arc-shaped bulge, the arc-shaped bulge has a certain radian, and two ends of the arc-shaped bulge interfere with the second limiting piece respectively when the rotating piece rotates positively and reversely, so that the control of the rotating stroke of the rotating piece is realized, the rotating angle of the rotating piece can be controlled by controlling the radian of the arc-shaped bulge, and the rotating piece is very convenient; and the outer edge of the arc-shaped bulge is close to or flush with the outer periphery of the rotating piece, so that the position of the arc-shaped bulge is relatively outward, and the resistance moment born by the arc-shaped bulge when the arc-shaped bulge interferes with the second limiting piece can be increased, thereby improving the limiting reliability of the first limiting piece and the second limiting piece on the rotating piece.

The second locating part is spacing post, and the axis of rotation of perpendicular to rotating the piece, then the direction of motion when first locating part (like arc arch) moved spacing post department is mutually perpendicular with spacing post, has guaranteed that first locating part and spacing post interfere the back, can not take place to rock or follow the circumstances of spacing post lateral wall etc. position roll-off to further improved first locating part and second locating part to the spacing reliability of rotating the piece, guaranteed cleaning assembly and moved promptly when first position and second position.

Of course, the first limiting member and the second limiting member are not limited to the above-mentioned matching scheme of the arc-shaped protrusion and the limiting post, and may be other matching schemes, which are all within the protection scope of the present invention. Such as: one of the first limiting piece and the second limiting piece is an arc chute, the other one is a convex column matched with the arc chute, and the convex column is inserted into the arc chute and can slide in the arc chute, wherein when the cleaning component moves to the first position and moves to the second position, the convex column moves to the end part of the arc chute so as to interfere with the arc chute; according to the scheme, the arc-shaped chute and the convex column are matched, so that the radian of the arc-shaped chute is equal to the rotation angle of the rotating piece, the convex column is inserted into the arc-shaped chute, and the convex column interferes with the arc-shaped chute when rotating to the end part of the arc-shaped chute, so that the rotating piece is limited to continue rotating.

In the above technical solution, the number of the first limiting members is one; and/or the number of the second limiting parts is one.

The number of the first limiting parts and/or the second limiting parts is one, and the structure of the stroke control device is greatly simplified on the basis of guaranteeing the limiting reliability. For example, the first limiting part and the second limiting part are arc-shaped protrusions and limiting columns respectively, and the rotating angle of the rotating part can be accurately controlled by controlling the radian of the arc-shaped protrusions and the thickness of the limiting columns.

Of course, the number of the first limiting piece and/or the second limiting piece can also be multiple, for example, two limiting columns are respectively arranged on two sides of one arc-shaped protrusion, or two arc-shaped protrusions are respectively arranged on two sides of one limiting column, and the precise control of the rotation angle of the rotating piece can be realized, so that the technical schemes are all within the protection scope of the invention.

In the above technical solution, the stroke control device includes: the trigger piece is arranged on the rotating piece; the travel switch is arranged on the upper cover and is electrically connected with the electric control board; when the cleaning assembly moves to the first position and moves to the second position, the trigger piece triggers the travel switch, so that the electric control board controls the driving piece to stop running.

The trigger piece is arranged on the rotating piece and rotates along with the rotating piece; the travel switch is arranged on the upper cover and is kept static and electrically connected with the electric control plate, when the cleaning assembly moves to the first position and moves to the second position, the travel switch is triggered by the trigger piece, and then an electric signal is generated to the electric control plate, and the electric control plate receives the electric signal of the travel switch and then sends the electric signal to the driving piece, so that the driving piece stops running. The technical scheme is similar to the scheme that the rotation angle of the rotating part is controlled in a certain interval through the cooperation of the first limiting part and the second limiting part, and the accurate control of the motion stroke of the cleaning assembly is realized through the accurate control of the rotation stroke of the rotating part, so that the device has the advantages of difficult error occurrence and more accurate control, and the circuit control sensitivity is high and the feedback is quicker.

In the above technical solution, the stroke control device includes: the position sensor is electrically connected with the electric control plate and can send signals to the electric control plate when the cleaning assembly moves to the first position and moves to the second position, so that the electric control plate controls the driving piece to stop running.

The stroke control device comprises a position sensor, when the position sensor detects that the cleaning assembly moves to the first position and moves to the second position, a signal is sent to the electric control board, and the electric control board sends an electric signal to the driving piece after receiving the electric signal of the position sensor, so that the driving piece stops running. The technical scheme is similar to the scheme that the rotation angle of the rotating part is controlled in a certain interval through the cooperation of the trigger part and the travel switch, and the accurate control of the motion travel of the cleaning assembly is realized through the accurate control of the rotation travel of the rotating part, so that the cleaning assembly has the advantages of difficult error occurrence, more accurate control, high sensitivity and rapid feedback.

The detection target of the position sensor is not particularly limited, and may be a cleaning assembly, a linkage member or a rotating member, which can achieve the purpose of the present invention, and all the detection targets are within the protection scope of the present invention.

In the above technical scheme, be equipped with the shielding part that can shelter from the infrared ray on the rotating member, position sensor is infrared sensor, works as cleaning assembly moves to first position and moves to the second position, infrared sensor detects shielding part and to the automatically controlled board sends the signal, makes the automatically controlled board control the driving piece stop operation.

The position sensor is an infrared sensor, and if the detection end of the position sensor does not detect infrared interruption, the driving piece keeps rotating; when the cleaning component moves to the first position and moves to the second position, the shielding part which rotates along with the rotating piece and can shield infrared rays shields infrared rays emitted by the position sensor, the detection end of the position sensor does not detect the infrared rays, the position sensor sends signals to the electric control board, and the electric control board sends electric signals to the driving piece after receiving electric signals of the position sensor, so that the driving piece stops running.

In the above technical scheme, the rotating member is a pulley, the linking member is a rope, and the rope is wound on the pulley.

The rotating part is a pulley, the linkage part is a rope (such as a steel wire rope), the pulley is sleeved on the output shaft of the driving part, the pulley rotates along with the rotation of the output shaft, the rope is wound on the pulley, the pulley is prolonged or shortened along with the rotation of the pulley, when the pulley is prolonged, the cleaning assembly gradually descends under the action of gravity, and then slowly expands, and when the pulley is shortened, the cleaning assembly is driven to slowly shrink upwards and reset. The transmission assembly is simple and reasonable in design and easy to realize, the circumference of the pulley is reasonably designed according to the stroke from the first position to the second position, and the extrusion force cannot occur between the rope and the cleaning assembly due to the flexible part, so that the condition that the cleaning assembly collides with the bottom of the inner pot or extrudes or causes the damage of the driving device when moving downwards can be avoided, and the use reliability and safety of products are improved. Furthermore, the application is provided with the travel control device to accurately control the travel of the cleaning assembly, so that the condition of rope breakage caused by forced driving can be effectively avoided; and for the scheme that the travel control device comprises the first limiting piece and the second limiting piece, the first limiting piece and the second limiting piece are stressed when limiting, and the rope is not a main stressed piece, so that the rope is not easy to break.

Further, the transmission assembly further comprises: the pin shaft is arranged on the upper cover and is positioned right above the cleaning assembly, and the rope bypasses the pin shaft and is connected with the cleaning assembly.

The transmission assembly further comprises a pin shaft, the pin shaft is located right above the cleaning assembly, the extending direction of the rope is guaranteed to be consistent with the moving direction of the cleaning assembly through the transmission of the pin shaft, so that the smoothness of rope movement is guaranteed, the rope can be prevented from interfering with other structures, the driving piece and the pulley are not required to be located right above the cleaning assembly, reasonable layout can be carried out according to the specific structure of a product, and further optimization of the product structure is facilitated.

In the above technical solution, the cooking appliance further includes: the telescopic device is arranged on the upper cover, is connected with the driving device and is arranged at the tail end of the telescopic device; the driving device drives the telescopic device to do telescopic motion, so that the telescopic device drives the cleaning assembly to reciprocate between the first position and the second position.

The cooking utensil still includes telescoping device, and telescoping device is connected with drive arrangement, washs the subassembly and installs the end at drive arrangement, namely: the cleaning component is indirectly connected with the driving device through the telescopic device. Specifically, when the driving device drives the telescopic device to be unfolded, the driving device drives the cleaning assembly to move downwards; when the driving device drives the telescopic device to retract, the driving device drives the cleaning assembly to move upwards. Therefore, the telescopic device can enable the cleaning assembly to obtain a longer movement stroke in a narrow pot body space so as to reduce the requirement on the driving device; meanwhile, the cleaning assembly is limited by the telescopic device, so that the cleaning assembly can only move up and down along a straight line without shaking or tilting and the like, the stability of the cleaning assembly in the moving process is improved, and the cleaning assembly can accurately reach the first position and the second position.

In the above technical solution, the telescopic device includes a plurality of telescopic rods which are sequentially connected in a sliding manner and are sequentially nested, the telescopic rods are hollow structures with through holes at the lower ends of openings at the upper ends, besides the telescopic rods at the innermost side, the through holes on the other telescopic rods are matched with the cross section sizes of the telescopic rods positioned at the inner side and adjacent to the telescopic rods, and the driving device is connected with the telescopic rods at the innermost side, so that the telescopic device can be stretched step by step; the cleaning component is arranged at the lower end of the telescopic rod positioned at the innermost side, and the section size of the cleaning component is larger than that of the through hole on the telescopic rod positioned at the outermost side, so that the cleaning component is integrally positioned below a plurality of telescopic rods.

The telescopic device comprises a plurality of telescopic rods which are sequentially connected in a sliding manner and are sequentially nested, so that the length of the telescopic device can be adjusted through the relative sliding among the telescopic rods, and the telescopic device can perform telescopic movement between the upper cover and the inner pot; each telescopic rod is of a hollow structure with a through hole at the lower end of the upper end being open, so that the telescopic rods can be nested in sequence; the through holes at the lower ends of the other telescopic rods except the telescopic rod at the innermost side are matched with the cross section sizes of the telescopic rods which are positioned at the inner side and adjacent to the telescopic rods, so that the through holes have a guiding effect and a limiting effect on the telescopic rods, the situation that the adjacent telescopic rods cannot incline or shake when sliding relatively is guaranteed, and the stability of the telescopic device during telescopic movement is improved; the driving device is connected with the telescopic rod positioned at the innermost side, when the driving device drives the telescopic rod at the innermost side to move downwards, the telescopic device can be driven to slowly spread step by step, when the driving device drives the telescopic rod at the innermost side to move upwards, the telescopic device can be driven to slowly shrink step by step, and as a plurality of telescopic rods are sequentially connected in a sliding mode and are sequentially nested, a corresponding limiting structure is necessarily arranged between the adjacent telescopic rods, so that the telescopic rods are limited to be completely disjointed, and the integrity of the telescopic device is ensured. The specific number of the telescopic rods can be adjusted according to the extension length and the installation space in the production process, but the telescopic rods are all within the protection scope of the invention.

The cleaning component is arranged at the lower end of the telescopic rod at the innermost side, and the cross section size of the cleaning component is larger than that of the through hole on the telescopic rod at the outermost side, so that the cleaning component is integrally positioned below a plurality of telescopic rods, and can serve as a limiting support structure, so that other telescopic rods except the innermost side can be supported, the telescopic device can be integrally suspended, the telescopic rod at the outermost side can further participate in telescopic movement, slipping of the telescopic device in a contracted state is avoided, in this way, the telescopic rod at the innermost side is suspended under a driving device in the contracted state, and other telescopic rods are supported on the cleaning component, so that the stability of the telescopic device in the contracted state is ensured; correspondingly, a bearing part (such as two lugs) is arranged on the outermost telescopic rod, so that the telescopic rod can be supported on the upper cover when the telescopic device is extended, and other telescopic rods except the innermost telescopic rod can not fall down.

Further, for the technical scheme that the transmission assembly comprises pulleys and ropes, the ropes are connected with the telescopic rods positioned at the innermost side, and the telescopic rods at the innermost side are limited by other telescopic rods, so that linear motion is maintained, the condition that the cleaning assembly swings or shakes in the motion process is effectively avoided, the reliability of rope transmission is ensured, and the accuracy of controlling the stroke starting point and the stroke end point of the cleaning assembly is further improved.

In the above technical scheme, the top of telescopic link is equipped with the end cover, is equipped with the elastic component between the adjacent end cover.

An end cover is arranged at the top of each telescopic rod, and an elastic piece is arranged between the adjacent end covers, so that the elastic piece is compressed to store elastic potential energy in a contracted state; under the expansion state, the elastic piece releases elastic potential energy to reset and is propped against the end covers at the two sides of the elastic piece, so that the relative motion between the adjacent telescopic rods is avoided, the condition that the telescopic rods float up and down and then drive the cleaning assembly to float up and down under the impact of water flow or materials and the like is avoided, the cleaning assembly is ensured to be stably positioned at the second position to clean the materials, and the use reliability of the telescopic device and the cleaning assembly is improved. Preferably, the elastic member is a spring.

In the above technical scheme, be equipped with the unloading box on the upper cover, feed inlet and feed opening have been respectively set up to the upper portion and the lower part of unloading box, telescoping device can be followed the axis reciprocating motion of feed opening is in order to retract in the unloading box or insert in the interior pot, just the shape of cleaning assembly with the shape looks adaptation of feed opening is in order to open or close the feed opening.

The upper cover comprises a cover body and a blanking box, wherein the upper part and the lower part of the blanking box are respectively provided with a feed inlet and a blanking inlet, so that materials firstly enter the blanking box and then enter an inner pot through the blanking inlet at the bottom of the blanking box under the action of gravity or other external forces, the cooking utensil has the function of automatic feeding, the automation degree of the cooking utensil is further improved, and the requirement on a feeding power source can be reduced to a certain extent; in addition, the blanking box also plays a role in accommodating the telescopic device, so that the telescopic device can be positioned in the blanking box in a contracted state, the space of the blanking box is reasonably utilized, other space of the cover body is prevented from being additionally occupied, the structure of the cover body part is simplified, the telescopic device is prevented from interfering with other structures or being influenced by the other structures, and the telescopic device is protected; the shape of the cleaning component is matched with the shape of the blanking opening, the cleaning component also plays a role of a discharge valve on the blanking opening, and the selective opening and closing of the blanking opening can be realized, so that one discharge valve component is reduced, the structure is further simplified, and the integration level of products is improved.

In the above technical scheme, the blanking box is internally provided with a guide rod, the telescopic rod positioned at the outermost side is provided with a guide groove, and the guide rod is inserted into the guide groove.

The guide rod is matched with the guide groove, so that the telescopic movement of the telescopic device has an effective guiding effect and a limiting effect, and the conditions of shaking, swinging or shifting and the like of the telescopic device in the telescopic process are avoided, thereby further improving the use reliability of the telescopic device and the stability of the telescopic device in a discharging box.

In the above technical solution, the guide groove includes a first section and a second section connected to a lower end of the first section, and a cross-sectional area of the first section is larger than a cross-sectional area of the second section; the guide rod is sleeved with a spring, the upper end of the spring abuts against the top of the blanking box, and the lower end of the spring is limited in the first section.

The guide groove comprises a first section and a second section, wherein the first section is arranged on the upper part, the second section is arranged on the lower part, and the first section is relatively thicker, so that the whole longitudinal section of the guide groove is in a ladder shape; the guide rod is sleeved with the spring, two ends of the spring respectively lean against the top of the blanking box and the step surface (namely the wall surface between the first section and the second section) in the guide groove, so that the spring is limited by the guide rod and the guide groove, the spring can be prevented from falling off, and the deformation direction of the spring is ensured to be consistent with the movement direction of the telescopic rod; the spring can play a limiting role on the outermost telescopic rod, so that the outermost telescopic rod in the unfolded state can not float up and down relative to the blanking box, the cleaning assembly is further ensured to be stably positioned at the second position to clean materials, and the use reliability of the telescopic device and the cleaning assembly is further improved.

In any of the above technical solutions, the cooking appliance is an electric cooker.

Of course, the electric cooker is not limited to the electric cooker, and can also be an electric pressure cooker, an electric steamer, an electric stewpot, an electric saucepan, a soymilk machine and the like.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is a partially cross-sectional structural schematic view of a first state of a cooking appliance according to an embodiment of the present invention;

Fig. 2 is a partially cross-sectional structural view illustrating a second state of the cooking appliance according to an embodiment of the present invention.

Wherein, the correspondence between the reference numerals and the component names in fig. 1 and 2 is:

10 upper cover, 102 blanking box, 104 feed opening, 106 guide bar, 108 guide slot, 110 spring, 20 cleaning component, 302 output shaft, 304 arc-shaped bulge, 306 spacing post, 308 pulley, 310 rope, 312 pin, 314 telescopic link, 316 end cover, 318 elastic component, 320 bearing part.

Detailed Description

In order that the above-recited objects, features and advantages of the present application will be more clearly understood, a more particular description of the application will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.

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

A cooking appliance according to some embodiments of the present invention is described below with reference to fig. 1 and 2.

As shown in fig. 1 and 2, the cooking appliance provided by the present invention includes: upper cover 10, inner pot, telescoping device, cleaning assembly 20, drive arrangement and travel control device.

Specifically, the inner pot is positioned below the upper cover 10 and is used for bearing water and materials; the cleaning assembly 20 is reciprocable between a first position and a second position between the upper lid 10 and the inner pot; the driving device is arranged on the upper cover 10 and connected with the cleaning assembly 20, and is used for driving the cleaning assembly 20 to reciprocate; the stroke control device is connected with the driving device and can stop the driving device when the cleaning assembly 20 moves to the first position and the second position so as to control the movement stroke of the cleaning assembly 20.

According to the cooking utensil provided by the application, the stroke control device is additionally arranged, and the stroke control device can timely stop the driving device when the cleaning assembly 20 moves to the first position and moves to the second position, so that the time when the driving device stops operating corresponds to the end point position of the movement stroke of the cleaning assembly 20, thereby ensuring that the cleaning assembly 20 can move to the first position and the second position accurately and can only reciprocate between the first position and the second position, effectively avoiding various adverse effects caused by excessive movement or insufficient movement of the cleaning assembly 20 in the prior art, and improving the use reliability and safety of products; compared with the technical scheme that the time when the driving device stops running is indirectly judged through the running time, the time when the driving device stops running is directly dependent on the position of the cleaning assembly 20, so that the situation that the running times are increased to cause the error accumulation to be increased is avoided, the situation that the stroke deviation of the cleaning assembly 20 is larger and larger is avoided, and the accurate control of the movement stroke of the cleaning assembly 20 is realized; the driving device is arranged on the upper cover 10, so that the stability of the driving device is ensured, the driving device is effectively protected, and the influence of substances such as steam in the inner pot on the driving device can be avoided.

Specifically, when the materials are cleaned, the materials such as rice and the like and water are placed in the inner pot, and the cleaning assembly 20 moves downwards to a second position, namely, extends into the inner pot to clean the materials such as rice and the like, as shown in fig. 1; after cleaning, the cleaning assembly 20 is moved upward to a first position, i.e., retracted into the upper cover 10 or retracted to the bottom of the upper cover 10, to avoid affecting the normal operation of the cooking process or other processes, as shown in fig. 2; the cleaning assembly 20 is reciprocally movable between a first position and a second position as required under the drive of the drive means; the travel control device can control the travel of the cleaning assembly 20 between the first position and the second position, and when the cleaning assembly 20 moves to the first position and the second position, the driving device stops running in time, so that the movement track of the cleaning assembly 20 is accurately controlled between the first position and the second position, thereby ensuring the normal running of the working processes such as the cleaning process, the cooking process and the like, and avoiding the damage to the cleaning assembly 20, the inner pot, the upper cover 10 or the driving device caused by forced driving.

Further, the driving device includes: the driving piece is electrically connected with an electric control plate of the cooking utensil; the transmission assembly is coupled to the output shaft 302 of the drive member and to the cleaning assembly 20 to reciprocate the cleaning assembly 20.

The driving device comprises a driving piece and a transmission assembly, the driving piece is electrically connected with the electric control board, and the electric control board controls the start and stop of the driving piece and various operation parameters (such as steering, rotating speed and the like); the driving member provides a power source, and the transmission assembly converts the rotation of the driving member into linear motion, so as to drive the cleaning assembly 20 to reciprocate up and down.

Further, the transmission assembly includes: the rotating piece and the linkage piece are sleeved on the output shaft 302; the linkage member is connected with the rotating member and the cleaning assembly 20 to drive the cleaning assembly 20 to reciprocate.

The transmission assembly comprises a rotating piece and a linkage piece; the rotating member is sleeved on the output shaft 302 and synchronously rotates along with the output shaft 302, the linkage member is connected with the rotating member, and the rotation of the rotating member is converted into linear motion, so that the cleaning assembly 20 is driven to synchronously linearly move, and the up-and-down reciprocating motion of the cleaning assembly 20 is realized. Since the cleaning assembly 20 and the linkage member keep synchronous movement, and the linear movement of the linkage member is synchronous with the rotational movement of the rotation member, the linear movement stroke of the linkage member and the rotational movement stroke of the rotation member also exactly correspond to the linear movement stroke of the cleaning assembly 20, so that when the cleaning assembly 20 moves to the stroke end (i.e. the first position and the second position), the linkage member or the rotation member also moves to the stroke end, i.e. the time from the movement of the three members to the stroke end corresponds exactly. Therefore, the time when the cleaning assembly 20 moves to the first position and the second position is determined directly according to the movement information (such as the position or the displacement) of the cleaning assembly 20, or the time when the cleaning assembly 20 moves to the first position and the second position is determined indirectly according to the movement information (such as the operation displacement) of the linkage member or the movement information (such as the rotation angle) of the rotation member, so that the precise control of the movement stroke of the cleaning assembly 20 can be realized.

The structure and operation of the stroke control device provided by the present application will be described below with reference to some embodiments.

Example one (as shown in FIGS. 1 and 2)

The stroke control device includes: the first limiting piece is fixedly connected with the rotating piece; the second limiting member is fixedly connected with the upper cover 10, and can interfere with the first limiting member when the cleaning assembly 20 moves to the first position and moves to the second position, so as to limit the rotation member to continue rotating, and the driving device stops running.

The stroke control device comprises a first limiting piece and a second limiting piece, wherein the first limiting piece is fixed on the rotating piece and rotates synchronously with the rotating piece, and the second limiting piece is fixedly connected with the upper cover 10 and keeps static relative to the rotating piece; when the cleaning assembly 20 moves to the first position and moves to the second position, the second limiting member interferes with the first limiting member (e.g., the second limiting member contacts with and abuts against the first limiting member), so that the first limiting member cannot move continuously, and further the rotating member is limited to rotate continuously, and the electric control board also stops the driving member, so that the whole driving device stops running.

The first limiting piece and the second limiting piece interfere with each other when the rotating piece rotates forwards and reversely, so that the rotating stroke of the rotating piece is smaller than 360 degrees (namely, less than one circle); because the motion amplitude of the rotating piece is relatively smaller, errors are not easy to occur, the control is more accurate, the mechanical limiting structure is simple, and the use is reliable. Therefore, according to the technical scheme, the rotating angle of the rotating piece is controlled in a certain interval through the mechanical limit fit of the first limit piece and the second limit piece, and further, the accurate control of the motion stroke of the cleaning assembly 20 is realized through the accurate control of the rotating stroke of the rotating piece.

Preferably, the first limiting member is an arc-shaped protrusion 304, and as shown in fig. 1 and 2, the outer edge of the arc-shaped protrusion 304 is close to or flush with the outer periphery of the rotating member.

The first limiting piece is an arc-shaped bulge 304, the arc-shaped bulge 304 has a certain radian, and two ends of the arc-shaped bulge interfere with the second limiting piece respectively when the rotating piece rotates positively and reversely, so that the control of the rotating stroke of the rotating piece is realized, and the rotating angle of the rotating piece can be controlled by controlling the radian of the arc-shaped bulge 304, so that the rotating piece is very convenient; and the outer edge of the arc-shaped bulge 304 is close to or flush with the outer periphery of the rotating member, so that the position of the arc-shaped bulge 304 is relatively outward, and thus the resistance moment applied when the arc-shaped bulge 304 interferes with the second limiting member can be increased, and the limiting reliability of the first limiting member and the second limiting member to the rotating member is improved.

Preferably, the second stop is a stop post 306, the stop post 306 being perpendicular to the rotational axis of the rotational member, as shown in fig. 1 and 2.

The second limiting member is a limiting post 306 and is perpendicular to the rotation axis of the rotating member, so that the movement direction of the first limiting member (such as the arc-shaped protrusion 304) when moving to the position of the limiting post 306 is perpendicular to the position of the limiting post 306, and the condition that the first limiting member and the limiting post 306 interfere with each other and then do not shake or slide out from the side wall and other parts of the limiting post 306 is guaranteed, so that the limiting reliability of the first limiting member and the second limiting member on the rotating member is further improved, and the cleaning assembly 20 is guaranteed to stop moving when moving to the first position and the second position.

Preferably, the number of the first limiting members is one.

Preferably, the number of the second limiting members is one.

The number of the first limiting parts and/or the second limiting parts is one, and the structure of the stroke control device is greatly simplified on the basis of guaranteeing the limiting reliability. For example, the first limiting member and the second limiting member are the arc-shaped protrusion 304 and the limiting post 306, and the rotation angle of the rotating member can be precisely controlled by controlling the radian of the arc-shaped protrusion 304 and the thickness of the limiting post 306.

Of course, the number of the first limiting member and/or the second limiting member may be multiple, for example, two limiting posts 306 are respectively disposed on two sides of one arc-shaped protrusion 304, or two arc-shaped protrusions 304 are respectively disposed on two sides of one limiting post 306, which can also realize precise control of the rotation angle of the rotating member, so that these technical schemes are all within the protection scope of the present invention.

Example two (not shown in the drawings)

The difference from the first embodiment is that: one of the first limiting part and the second limiting part is an arc chute, the other is a convex column matched with the arc chute, the convex column is inserted into the arc chute and can slide in the arc chute, wherein when the cleaning assembly 20 moves to the first position and moves to the second position, the convex column moves to the end part of the arc chute to interfere with the arc chute.

According to the embodiment, the arc-shaped chute and the convex column are matched, so that the radian of the arc-shaped chute is equal to the rotation angle of the rotating piece, the convex column is inserted into the arc-shaped chute, and the convex column interferes with the arc-shaped chute when rotating to the end part of the arc-shaped chute, so that the rotating piece is limited to continue rotating.

Example III (not shown)

The stroke control device includes: the trigger piece and the travel switch are arranged on the rotating piece; the travel switch is arranged on the upper cover 10 and is electrically connected with the electric control board; when the cleaning assembly 20 moves to the first position and moves to the second position, the trigger member triggers the travel switch, so that the electric control board controls the driving member to stop running.

The trigger piece is arranged on the rotating piece and rotates along with the rotating piece; the travel switch is mounted on the upper cover 10, kept stationary, and electrically connected with the electric control board, when the cleaning assembly 20 moves to the first position and the second position, the travel switch is triggered by the trigger piece, and then an electric signal is generated to the electric control board, and the electric control board receives the electric signal of the travel switch and then sends the electric signal to the driving piece, so that the driving piece stops running. The technical scheme is similar to the scheme that the rotation angle of the rotating part is controlled in a certain interval through the cooperation of the first limiting part and the second limiting part, and the accurate control of the motion stroke of the cleaning assembly 20 is realized through the accurate control of the rotation stroke of the rotating part, so that the device has the advantages of difficult error generation and more accurate control, and the circuit control sensitivity is high and the feedback is quicker.

Example IV (not shown in the drawings)

The stroke control device includes: the position sensor is electrically connected with the electric control plate and can send a signal to the electric control plate when the cleaning assembly 20 moves to the first position and moves to the second position, so that the electric control plate controls the driving piece to stop running.

The stroke control device comprises a position sensor, when the position sensor detects that the cleaning assembly 20 moves to the first position and moves to the second position, a signal is sent to the electric control board, and the electric control board sends an electric signal to the driving piece after receiving the electric signal of the position sensor, so that the driving piece stops running. The technical scheme is similar to the scheme that the rotation angle of the rotating part is controlled in a certain interval through the cooperation of the trigger part and the travel switch, and the accurate control of the motion travel of the cleaning assembly 20 is realized through the accurate control of the rotation travel of the rotating part, so that the device has the advantages of difficult error occurrence, more accurate control, high sensitivity and rapid feedback.

The detection target of the position sensor is not particularly limited, and may be the cleaning assembly 20, or may be a linkage member or a rotation member, which can achieve the object of the present invention, and all the objects are within the scope of the present invention.

Specifically, be equipped with the shielding part that can shelter from the infrared ray on the rotating member, position sensor is infrared sensor, and when cleaning assembly 20 moved to first position and moved to the second position, infrared sensor detected shielding part and sent the signal to the automatically controlled board, made automatically controlled board control driving piece stop operation.

The position sensor is an infrared sensor, and if the detection end of the position sensor does not detect infrared interruption, the driving piece keeps rotating; when the cleaning assembly 20 moves to the first position and moves to the second position, the shielding part which rotates along with the rotating piece and can shield infrared rays shields infrared rays emitted by the position sensor, the detection end of the position sensor does not detect the infrared rays, the position sensor sends signals to the electric control board, and the electric control board sends electric signals to the driving piece after receiving electric signals of the position sensor, so that the driving piece stops running.

In any of the above embodiments, the rotating member is a pulley 308, the linking member is a rope 310, and the rope 310 is wound around the pulley 308, as shown in fig. 1 and 2.

The rotating member is a pulley 308, the linking member is a rope 310 (such as a steel wire rope), the pulley 308 is sleeved on the output shaft 302 of the driving member, the rope 310 is wound on the pulley 308 and is lengthened or shortened along with the rotation of the output shaft 302, when the pulley 308 is lengthened, the cleaning assembly 20 gradually descends under the action of gravity, as shown in fig. 1, and then gradually expands, and when the pulley is shortened, the cleaning assembly 20 is driven to gradually shrink upwards to reset, as shown in fig. 2. The transmission assembly is simple and reasonable in design and easy to realize, the circumference of the pulley 308 can be reasonably designed according to the stroke from the first position to the second position, and the extrusion force cannot be generated between the rope 310 and the cleaning assembly 20 due to the flexible part, so that the condition that the cleaning assembly 20 is in strong collision or extrusion with the bottom of the inner pot or damage to a driving device is avoided when the cleaning assembly 20 moves downwards, and the use reliability and safety of products are improved.

Further, since the present application is provided with the stroke control means to precisely control the movement stroke of the washing assembly 20, it is possible to effectively avoid the breakage of the rope 310 caused by the forced driving; in the embodiment of the travel control device including the first limiting member and the second limiting member, the first limiting member and the second limiting member are mainly stressed during limiting, and the rope 310 is not a main stress member, so that the rope is not easy to break.

In addition, the transmission assembly further includes: a pin 312 is mounted on the upper cover 10 and is positioned directly above the cleaning assembly 20, and a rope 310 is connected to the cleaning assembly 20 around the pin 312, as shown in fig. 1 and 2.

The transmission assembly further comprises a pin shaft 312, the pin shaft 312 is located right above the cleaning assembly 20, the extending direction of the rope 310 is guaranteed to be consistent with the moving direction of the cleaning assembly 20 through the transmission of the pin shaft 312, so that the smoothness of the movement of the rope 310 is guaranteed, interference between the rope 310 and other structures can be avoided, the driving piece and the pulley 308 are not required to be located right above the cleaning assembly 20, reasonable layout can be carried out according to the specific structure of a product, and further optimization of the product structure is facilitated.

Further, the cooking appliance further includes: a telescopic device mounted on the upper cover 10 and connected to the driving device, and a cleaning assembly 20 mounted at the end of the telescopic device; wherein, the driving device drives the telescopic device to do telescopic motion, so that the telescopic device drives the cleaning assembly 20 to reciprocate between the first position and the second position.

The cooking utensil further includes telescoping device, and telescoping device is connected with drive arrangement, and cleaning assembly 20 installs at drive arrangement's terminal, namely: the cleaning assembly 20 is indirectly coupled to the drive means via a telescoping device. Specifically, when the driving device drives the telescopic device to be unfolded, the driving device drives the cleaning assembly 20 to move downwards; when the driving device drives the telescopic device to retract, the driving device drives the cleaning assembly 20 to move upwards. Therefore, the telescopic device can enable the cleaning assembly 20 to obtain a longer movement stroke in a narrow pot body space so as to reduce the requirement on a driving device; meanwhile, the cleaning assembly 20 can only move up and down along a straight line due to the limitation of the telescopic device, and the conditions such as shaking or tilting and the like can not occur, so that the stability of the cleaning assembly 20 in the moving process is improved, and the cleaning assembly 20 can accurately reach the first position and the second position.

Further, the telescopic device comprises a plurality of telescopic rods 314 which are sequentially connected in a sliding manner and are sequentially nested, the telescopic rods 314 are hollow structures, the lower ends of the upper ends of the telescopic rods 314 are open, through holes are formed in the lower ends of the telescopic rods, as shown in fig. 1 and 2, besides the telescopic rods 314 at the innermost side, through holes in other telescopic rods 314 are matched with the cross section of the telescopic rods 314 which are positioned at the inner side and adjacent to the telescopic rods, and the driving device is connected with the telescopic rods 314 at the innermost side, so that the telescopic device can be stretched step by step; the cleaning assembly 20 is mounted at the lower end of the innermost telescoping rod 314, and the cleaning assembly 20 has a cross-sectional size larger than the through holes in the outermost telescoping rods 314, such that the cleaning assembly 20 is generally positioned below the plurality of telescoping rods 314.

The telescopic device comprises a plurality of telescopic rods 314 (the number of the telescopic rods shown in fig. 1 and 2 is 2) which are sequentially connected in a sliding manner and are sequentially nested, so that the length of the telescopic device can be adjusted through the relative sliding among the telescopic rods 314, and the telescopic device can perform telescopic movement between the upper cover 10 and the inner pot; each telescopic rod 314 is of a hollow structure with a through hole at the lower end of the upper end, and the telescopic rods 314 can be nested in sequence; the through holes at the lower ends of the other telescopic rods 314 except the telescopic rod 314 at the innermost side are matched with the cross section sizes of the telescopic rods 314 which are positioned at the inner side and adjacent to the telescopic rods, so that the through holes have a guiding effect and a limiting effect on the telescopic rods 314, the situation that the adjacent telescopic rods 314 cannot incline or shake when relatively sliding is guaranteed, and the stability of the telescopic device during telescopic movement is improved; the driving device is connected with the telescopic rods 314 positioned at the innermost side, when the driving device drives the telescopic rods 314 at the innermost side to move downwards, the telescopic devices can be driven to slowly spread step by step, when the driving device drives the telescopic rods 314 at the innermost side to move upwards, the telescopic devices can be driven to slowly shrink step by step, and as a plurality of telescopic rods 314 are sequentially connected in a sliding mode and are sequentially nested, corresponding limiting structures are necessarily arranged between the adjacent telescopic rods 314, so that the telescopic rods are limited to be completely disjointed, and the integrity of the telescopic devices is ensured. The specific number of telescoping rods 314 may be adjusted during the manufacturing process according to the extension length and installation space, but are within the scope of the present invention.

The cleaning assembly 20 is installed at the lower end of the telescopic rod 314 at the innermost side, and the cross section size of the cleaning assembly is larger than that of the through hole on the telescopic rod 314 at the outermost side, so that the cleaning assembly 20 is integrally located below the telescopic rods 314, and therefore the cleaning assembly 20 can serve as a limiting support structure and can play a bearing role on other telescopic rods 314 except the innermost side, so that the telescopic device can be integrally suspended, as shown in fig. 2, and further the telescopic rod 314 at the outermost side can participate in telescopic movement, slipping of the telescopic device in a contracted state is avoided, as shown in fig. 2, in this way, the telescopic rod 314 at the innermost side is suspended under a driving device, and other telescopic rods 314 are supported on the cleaning assembly 20, so that stability of the telescopic device in the contracted state is guaranteed, as shown in fig. 2; correspondingly, a bearing portion 320 (such as two lugs) is also required on the outermost telescopic rod 314, so that it can be supported on the upper cover 10 when the telescopic device is extended, as shown in fig. 1, so as to ensure that other telescopic rods 314 except the innermost telescopic rod 314 cannot fall down.

Further, for the above technical solution that the transmission assembly includes the pulley 308 and the rope 310, the rope 310 is connected with the telescopic rod 314 located at the innermost side, as shown in fig. 1 and fig. 2, and the telescopic rod 314 located at the innermost side is limited by other telescopic rods 314, so as to further maintain linear motion, thereby effectively avoiding the situation that the cleaning assembly 20 swings or shakes during the motion process, ensuring the reliability of the transmission of the rope 310, and further improving the accuracy of controlling the starting point and the end point of the stroke of the cleaning assembly 20.

Further, an end cap 316 is provided on top of the telescoping rod 314, and an elastic member 318 is provided between adjacent end caps 316, as shown in fig. 1 and 2.

An end cover 316 is arranged at the top of each telescopic rod 314, and an elastic element 318 is arranged between the adjacent end covers 316, so that in a contracted state, the elastic element 318 is compressed to store elastic potential energy, as shown in fig. 2; in the unfolded state, the elastic member 318 releases elastic potential energy to reset and abuts against the end caps 316 at two sides of the elastic member, as shown in fig. 1, so that no relative motion can occur between the adjacent telescopic rods 314, the condition that the telescopic rods 314 float up and down and then the cleaning assembly 20 is driven to float up and down under the impact of water flow or materials and the like is avoided, the cleaning assembly 20 is ensured to be stably positioned at the second position to clean the materials, and therefore the use reliability of the telescopic device and the cleaning assembly 20 is improved. Preferably, the elastic member is a spring.

Further, the upper cover 10 is provided with a blanking box 102, the upper part and the lower part of the blanking box 102 are respectively provided with a feed inlet and a blanking opening 104, as shown in fig. 1 and 2, the telescopic device can reciprocate along the axis of the blanking box 1022 to retract into the blanking box 102 (as shown in fig. 2) or insert into an inner pot (as shown in fig. 1), and the shape of the cleaning assembly 20 is matched with the shape of the blanking box 102 to open or close the blanking box 102.

The upper cover 10 comprises a cover body and a blanking box 102, wherein the upper part and the lower part of the blanking box 102 are respectively provided with a feed inlet and a blanking inlet 104, so that materials firstly enter the blanking box 102 and then enter an inner pot through the blanking inlet 104 at the bottom of the blanking box 102 under the action of gravity or other external forces, the cooking utensil has the function of automatic feeding, the automation degree of the cooking utensil is further improved, and the requirement on a feeding power source can be reduced to a certain extent; in addition, the blanking box 102 also plays a role in accommodating the telescopic device, so that the telescopic device can be positioned in the blanking box 102 in a contracted state, as shown in fig. 2, the space of the blanking box 102 is reasonably utilized, other space of the cover body is avoided being additionally occupied, the structure of the cover body part is simplified, and the telescopic device is prevented from interfering with or being influenced by other structures, so that the telescopic device is protected; the shape of the cleaning assembly 20 is matched with the shape of the discharging opening 104, so that the cleaning assembly 20 also plays a role of a discharging valve on the discharging opening 104, as shown in fig. 2, the selective opening and closing of the discharging opening 104 can be realized, and thus, one discharging valve component is reduced, the structure is further simplified, and the integration level of products is improved.

Further, the guide rod 106 is disposed in the blanking box 102, the telescopic rod 314 located at the outermost side is provided with a guide groove 108, and the guide rod 106 is inserted into the guide groove 108, as shown in fig. 1 and 2.

The guide rod 106 and the guide groove 108 are matched, so that the telescopic movement of the telescopic device is effectively guided and limited, and the conditions of shaking, swinging or shifting and the like of the telescopic device in the telescopic process are avoided, so that the use reliability of the telescopic device is further improved, and the stability of the telescopic device in the discharging box 102 is also improved.

Further, the guide groove 108 includes a first section and a second section connected to a lower end of the first section, the cross-sectional area of the first section being larger than the cross-sectional area of the second section; the guide rod 106 is sleeved with a spring 110, the upper end of the spring 110 abuts against the top of the blanking box 102, and the lower end of the spring 110 is limited in the first section, as shown in fig. 1 and 2.

The guide groove 108 includes a first section and a second section, the first section is upper and the second section is lower, and the first section is relatively thick, so that the longitudinal section of the guide groove 108 is overall stepped; the guide rod 106 is sleeved with the spring 110, two ends of the spring 110 respectively lean against between the top of the blanking box 102 and the stepped surface (i.e. the wall surface between the first section and the second section) in the guide groove 108, as shown in fig. 1, the spring 110 is limited by the guide rod 106 and the guide groove 108, so that the spring 110 can be prevented from falling out, and the deformation direction of the spring 110 is ensured to be consistent with the movement direction of the telescopic rod 314; the spring 110 can play a limiting role on the outermost telescopic rod 314, so that the outermost telescopic rod 314 in the unfolded state can not float up and down relative to the blanking box 102, the cleaning assembly 20 can be stably positioned at the second position to clean materials, and the use reliability of the telescopic device and the cleaning assembly 20 is further improved.

In any of the above embodiments, the cooking appliance is an electric cooker.

In summary, the cooking appliance provided by the application is additionally provided with the travel control device, and the travel control device can timely stop the driving device when the cleaning assembly moves to the first position and moves to the second position, so that the time of stopping the driving device corresponds to the end point position of the movement travel of the cleaning assembly, thereby ensuring that the cleaning assembly can move to the first position and the second position accurately and can only reciprocate between the first position and the second position, effectively avoiding various adverse effects caused by excessive movement or insufficient movement of the cleaning assembly in the prior art, and improving the use reliability and safety of products; compared with the technical scheme that the time for stopping the operation of the driving device is indirectly judged through the operation time, the time for stopping the operation of the driving device is directly dependent on the position of the cleaning component, so that the situation that the error accumulation is increased due to the increase of the operation times is avoided, the situation that the stroke deviation of the cleaning component is larger and larger is avoided, and the accurate control of the movement stroke of the cleaning component is realized.

In the present invention, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more, unless expressly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

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

In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," 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 present invention. 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 description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A cooking appliance, comprising:

An upper cover;

The inner pot is positioned below the upper cover and is used for bearing water and materials;

A cleaning assembly reciprocally movable between a first position and a second position between the upper cover and the inner pan; and

The driving device is arranged on the upper cover, connected with the cleaning assembly and used for driving the cleaning assembly to reciprocate;

The stroke control device is connected with the driving device and can stop the driving device to operate when the cleaning assembly moves to the first position and moves to the second position so as to control the movement stroke of the cleaning assembly;

The driving device includes:

the driving piece is electrically connected with the electric control plate of the cooking appliance; and

The transmission assembly is connected with the output shaft of the driving piece and the cleaning assembly so as to drive the cleaning assembly to reciprocate;

the transmission assembly includes:

The rotating piece is sleeved on the output shaft;

the linkage piece is connected with the rotating piece and the cleaning assembly to drive the cleaning assembly to reciprocate;

the stroke control device includes:

the first limiting piece is fixedly connected with the rotating piece; and

The second limiting piece is fixedly connected with the upper cover and can interfere with the first limiting piece when the cleaning assembly moves to the first position and moves to the second position so as to limit the rotating piece to continue rotating, and the driving device stops running.

2. The cooking appliance of claim 1, wherein the cooking appliance further comprises a handle,

The first limiting piece is an arc-shaped bulge, and the outer edge of the arc-shaped bulge is close to or flush with the outer periphery of the rotating piece; and/or

The second limiting piece is a limiting column, and the limiting column is perpendicular to the rotation axis of the rotating piece.

3. The cooking appliance of claim 1, wherein the cooking appliance further comprises a handle,

The number of the first limiting pieces is one; and/or

The number of the second limiting pieces is one.

4. A cooking appliance according to any one of claim 1 to 3, wherein,

The rotating piece is a pulley, the linkage piece is a rope, and the rope is wound on the pulley.

5. A cooking appliance according to any one of claims 1 to 3, further comprising:

the telescopic device is arranged on the upper cover, is connected with the driving device and is arranged at the tail end of the telescopic device;

the driving device drives the telescopic device to do telescopic motion, so that the telescopic device drives the cleaning assembly to reciprocate between the first position and the second position.

6. The cooking appliance of claim 5, wherein the cooking appliance further comprises a handle,

The telescopic device comprises a plurality of telescopic rods which are sequentially connected in a sliding manner and are sequentially nested, the telescopic rods are of hollow structures, the lower ends of the upper ends of the telescopic rods are provided with through holes, besides the telescopic rods at the innermost side, the through holes on the other telescopic rods are matched with the cross section sizes of the telescopic rods which are positioned at the inner side and adjacent to the telescopic rods, and the driving device is connected with the telescopic rods at the innermost side so that the telescopic device can be telescopic step by step;

The cleaning component is arranged at the lower end of the telescopic rod positioned at the innermost side, and the section size of the cleaning component is larger than that of the through hole on the telescopic rod positioned at the outermost side, so that the cleaning component is integrally positioned below a plurality of telescopic rods.

7. The cooking appliance of claim 6, wherein the cooking appliance further comprises a handle,

The top of telescopic link is equipped with the end cover, is equipped with the elastic component between the adjacent end cover.

8. The cooking appliance of claim 6, wherein the cooking appliance further comprises a handle,

The upper cover is provided with a blanking box, the upper part and the lower part of the blanking box are respectively provided with a feed inlet and a blanking opening, the telescopic device can reciprocate along the axis of the blanking opening so as to retract into the blanking box or insert into the inner pot, and the shape of the cleaning component is matched with the shape of the blanking opening so as to open or close the blanking opening.

9. The cooking appliance of claim 8, wherein the cooking appliance further comprises a handle,

The blanking box is internally provided with a guide rod, the telescopic rod positioned at the outermost side is provided with a guide groove, and the guide rod penetrates through the guide groove.

10. The cooking appliance of claim 9, wherein the cooking appliance further comprises a handle,

The guide groove comprises a first section and a second section connected with the lower end of the first section, and the cross section area of the first section is larger than that of the second section;

The guide rod is sleeved with a spring, the upper end of the spring abuts against the top of the blanking box, and the lower end of the spring is limited in the first section.