Cooking appliance

Abstract

The present invention provides a cooking appliance, comprising: a pot body; a pot lid, the pot lid being arranged on the pot body, the pot lid including an upper lid and a locking lid, the locking lid being rotatably arranged below the upper lid; a rotating member, the rotating member being rotatably arranged on the upper lid and driving the locking lid to rotate; an electric control driving mechanism, the electric control driving mechanism being arranged on the upper lid, the electric control driving mechanism including a rotating crank arm, the rotating crank arm being drivingly connected to the rotating member for driving the rotating member to rotate so as to realize electric control of opening or locking the pot lid of the cooking appliance. The present invention solves the problem that in the related art, the processes of opening and locking the pot lid of an electric pressure cooker need to be manually operated, and the electric pressure cooker has poor usability.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, and more particularly, to an improvement in the lid opening driving mode of a cooking appliance. Background Art

[0002] As a household appliance, the electric pressure cooker is increasingly favored by consumers for its convenient use and fast cooking characteristics.

[0003] An opening knob is usually provided on the lid of the electric pressure cooker. The opening knob is used to drive the locking ring of the lid to rotate, so as to achieve the locking or unlocking of the lid and the pot body. In the related art, the opening knob usually needs to be manually screwed. When the pot teeth of the pot body contact the lid teeth of the lid, a large frictional resistance will be generated, which makes the process of screwing the opening knob difficult and affects the convenience of using the electric pressure cooker. Especially when there is a certain pressure in the pot body of the electric pressure cooker, although the pressure is less than the allowable lid opening pressure of the electric pressure cooker, it greatly increases the difficulty of opening the lid of the electric pressure cooker and causes inconvenience to the user in operating the electric pressure cooker. Summary of the Invention

[0004] The main object of the present invention is to provide a cooking appliance to solve the problem that the lid opening and locking processes of the electric pressure cooker in the related art need to be manually operated, and the electric pressure cooker has poor convenience in use.

[0005] To achieve the above object, the present invention provides a cooking appliance, including: a pot body; a lid, the lid is covered on the pot body, the lid includes an upper lid and a locking lid, the locking lid is rotatably provided below the upper lid; a rotating member, the rotating member is rotatably provided on the upper lid and drives the locking lid to rotate; an electric control driving mechanism, the electric control driving mechanism is provided on the upper lid, the electric control driving mechanism includes a rotating crank arm, the rotating crank arm is drivingly connected to the rotating member and is used to drive the rotating member to rotate, so as to achieve electric control lid opening or electric control lid locking of the cooking appliance.

[0006] Further, the rotating member has a first pivot point connected to the upper lid, and the electric control driving mechanism includes: a driving motor; a screw rod, the screw rod is drivingly connected to the driving motor; a transmission member, the transmission member is connected to the screw rod and reciprocates under the drive of the screw rod; a rotating crank arm, the first end of the rotating crank arm is pivotally connected to the transmission member, and the second end of the rotating crank arm is pivotally connected to the rotating member to form a second pivot point spaced apart from the first pivot point.

[0007] Further, the transmission member includes a fixing frame and a connecting arm, the first end of the fixing frame is detachably connected to the screw rod through a threaded cap, the second end of the fixing frame is connected to the connecting arm, and the connecting arm is pivotally connected to the rotating crank arm.

[0008] Further, the cooking appliance further includes a lid-opening prevention rod movably disposed on the upper cover to prevent the lid from being opened when the pressure inside the pot body is greater than the allowable lid-opening pressure. The first end of the connecting arm is pivotally connected to the second end of the fixed bracket through a pivot shaft, and the second end of the connecting arm is pivotally connected to the rotating crank arm.

[0009] Further, a driving arm is connected between the first end and the second end of the connecting arm. The driving arm is drivingly connected to the lid-opening prevention rod for pushing or pulling the lid-opening prevention rod.

[0010] Further, the cooking appliance further includes a cold air rod floatingly disposed on the upper cover. The lid-opening prevention rod has an allowable lid-opening position close to the cold air rod and a lid-opening restriction position away from the cold air rod in its moving direction. When the pressure inside the pot body is greater than the allowable lid-opening pressure, the cold air rod is lifted, and the lid-opening prevention rod is limited to the lid-opening restriction position. When the pressure inside the pot body is less than or equal to the allowable lid-opening pressure, the cold air rod falls back, and the lid-opening prevention rod can move from the lid-opening restriction position to the allowable lid-opening position under the push of the driving arm.

[0011] Further, the rotating member includes a connected first driving arm and second driving arm. Among them, the first pivot point is formed at the first end of the first driving arm. The second end of the first driving arm is connected to the lid lock, and the end of the second driving arm away from the first driving arm is pivotally connected to the rotating crank arm.

[0012] Further, the upper cover includes a lining and a face cover covering the outside of the lining. The electric control driving mechanism is disposed on the lining, and an operation panel is disposed on the face cover. The cooking appliance further includes a control panel, and the operation panel is electrically connected to the electric control driving mechanism through the control panel.

[0013] Further, a chute is formed inside the lining, and the rotating member is drivingly connected to the lid lock through a connecting rod that slides in the chute along the length direction of the chute.

[0014] Further, the pot body includes an outer pot and an inner pot disposed inside the outer pot. The outer pot includes a heat preservation cover. A pot tooth is disposed on the inner pot or the heat preservation cover, and the lid lock has a lid tooth. The rotating member has an unlocking position where the pot tooth and the lid tooth are misaligned and a locking position where the pot tooth and the lid tooth are locked in its rotation direction.

[0015] Applying the technical solution of the present invention, by providing an electric control driving mechanism on the upper cover of the lid, in this way, the electric control driving mechanism can drive the lid lock to rotate in an automated control manner, that is, drive the rotating member to rotate through the rotating crank arm, and finally realize the rotation of the lid lock, which is beneficial to realizing the electric control lid opening or electric control lid locking of the cooking appliance, improving the automation degree of the lid opening or lid locking of the cooking appliance, eliminating the trouble of time-consuming and laborious manual operation, and improving the use convenience and practicality of the cooking appliance. Description of the Drawings

[0016] The accompanying drawings of the specification, which form a part of this application, are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0017] Figure 1 Shows a schematic structural view of a cooking appliance when the front cover is in a disassembled state according to an alternative embodiment of the present invention;

[0018] Figure 2 Shows Figure 1 An enlarged schematic view of part A in

[0019] Figure 3 Shows Figure 1 A schematic assembly structure view of an electric control drive mechanism and a rotating member of the cooking appliance in

[0020] Figure 4 Shows Figure 1 A schematic view when the electric control drive mechanism installed on the inner liner drives the rotating member to rotate to make the cooking appliance in an open - lid state in

[0021] Figure 5 Shows Figure 4 A schematic view of the positional relationship among the electric control drive mechanism, the rotating member, and the connecting rod in

[0022] Figure 6 Shows Figure 1 A schematic view when the electric control drive mechanism installed on the inner liner drives the rotating member to rotate to make the cooking appliance in a locked - lid state in

[0023] Figure 7 Shows Figure 6 A schematic view of the positional relationship among the electric control drive mechanism, the rotating member, and the connecting rod in

[0024] Among them, the above - mentioned drawings include the following reference numerals:

[0025] 10, pot body; 20, pot lid; 21, upper cover; 211, inner liner; 212, front cover; 213, sliding groove; 30, rotating member; 31, first pivot point; 32, second pivot point; 33, first driving arm; 34, second driving arm; 40, electric control drive mechanism; 41, driving motor; 42, screw; 43, transmission member; 431, fixing bracket; 432, connecting arm; 433, driving arm; 44, rotating curved arm; 45, threaded nut; 46, pivot shaft; 50, anti - opening rod; 60, cold air rod; 70, connecting rod. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way constitutes a limitation on the present invention and its application or use. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present invention.

[0027] To solve the problem that the processes of opening and locking the lid of an electric pressure cooker in the related art require manual operation and the electric pressure cooker has poor usability, the present invention provides a cooking appliance. It should be noted that the cooking appliance in this application includes an electric pressure cooker or a rice cooker, but is not limited to these two. The illustrated embodiment in this application takes the electric pressure cooker as an example.

[0028] As Figures 1 to 7 shown, the cooking appliance includes a pot body 10, a lid 20, a rotating member 30, and an electric control driving mechanism 40. The lid 20 is covered on the pot body 10. The lid 20 includes an upper lid 21 and a locking lid. The locking lid is rotatably provided below the upper lid 21. The rotating member 30 is rotatably provided on the upper lid 21 and drives the locking lid to rotate. The electric control driving mechanism 40 is provided on the upper lid 21. The electric control driving mechanism 40 includes a rotating crank arm 44. The rotating crank arm 44 is drivingly connected to the rotating member 30 and is used to drive the rotating member 30 to rotate so as to realize electric control opening or electric control locking of the cooking appliance.

[0029] By providing the electric control driving mechanism 40 on the upper lid 21 of the lid 20, in this way, the electric control driving mechanism 40 can drive the locking lid to rotate in an automatic control manner, that is, drive the rotating member 30 to rotate through the rotating crank arm 44, and finally realize the rotation of the locking lid, which is beneficial to realizing electric control opening or electric control locking of the cooking appliance, improving the automation degree of opening or locking the lid of the cooking appliance, eliminating the trouble of time-consuming and laborious manual operation, and improving the usability and practicality of the cooking appliance.

[0030] It should be noted that the above-mentioned rotating crank arm 44 can be a straight arm, a bent arm or a curved arm, and any structural form that can realize driving the rotating member 30 to rotate can be used as the rotating crank arm 44 of this application.

[0031] As Figure 3As shown, the rotating member 30 has a first pivot point 31 connected to the upper cover 21. The electric control drive mechanism 40 includes a drive motor 41, a screw 42, a transmission member 43, and a rotating crank 44. The screw 42 is drivingly connected to the drive motor 41. The transmission member 43 is connected to the screw 42 to reciprocate under the drive of the screw 42. The first end of the rotating crank 44 is pivotally connected to the transmission member 43, and the second end of the rotating crank 44 is pivotally connected to the rotating member 30 to form a second pivot point 32 spaced apart from the first pivot point 31. In this way, the transmission member 43 and the rotating crank 44 form a link mechanism. The drive motor 41 can control the screw 42 to reciprocate. The output force of the screw 42 acts on the link mechanism, causing the link mechanism to output a pulling force or a pushing force on the rotating member 30 at the second pivot point 32, thereby realizing the rotation of the rotating member 30 around the first pivot point 31, and further driving the lock cover to rotate.

[0032] As Figures 3 to 7 shown, in the present application, the transmission member 43 includes a fixed frame 431 and a connecting arm 432. The first end of the fixed frame 431 is detachably connected to the screw 42 through a threaded cap 45. The second end of the fixed frame 431 is connected to the connecting arm 432, and the connecting arm 432 is pivotally connected to the rotating crank 44. In this way, it is convenient for the disassembly and installation between the transmission member 43, the screw 42, and the rotating crank 44, and it is convenient for the maintenance and replacement of the transmission member 43. The pivotal connection between the connecting arm 432 and the rotating crank 44 is beneficial to buffering the pulling force or pushing force received by the transmission member 43, ensuring the connection stability between the transmission member 43, the screw 42, and the rotating crank 44. In addition, the setting of the fixed frame 431 is also beneficial to avoiding other structural elements on the upper cover 21, which is beneficial to improving the overall structural compactness of the pot lid 20.

[0033] In this embodiment, the output shaft of the drive motor 41 can rotate forward or backward, and the screw 42 is directly connected to the output shaft of the motor. In other embodiments, a motor can also be provided on the output shaft of the drive motor 41. At this time, the screw 42 is a worm.

[0034] Specifically, as Figure 3 、 Figure 5 and Figure 7 shown, the first end of the connecting arm 432 is pivotally connected to the second end of the fixed frame 431 through a pivot shaft 46, and the second end of the connecting arm 432 is pivotally connected to the rotating crank 44.

[0035] As Figures 3 to 7As shown, the cooking appliance further includes a lid locking lever 50, which is movably disposed on the upper lid 21 to prevent the pot lid 20 from being opened when the pressure inside the pot body 10 is greater than the allowable lid-opening pressure. A driving arm 433 is connected between the first end and the second end of the connecting arm 432. The driving arm 433 is drivingly connected to the lid locking lever 50 and is configured to push or pull the lid locking lever 50. In this way, while the electric control driving mechanism 40 can drive the rotating member 30 to rotate to achieve electric lid-opening or electric lid-locking, the movement of its transmission member 43 is restricted by the situation where lid-opening is not allowed, ensuring the safety of using the cooking appliance.

[0036] Considering the need to avoid the first pivot point 31 and ensure the strength of the connecting arm 432, an avoidance notch is provided on the connecting arm 432, so that the connecting arm 432 will not interfere with the first pivot point 31 during the reciprocating movement.

[0037] Specifically, the cooking appliance further includes a cold air rod 60 that is floatingly disposed on the upper lid 21. The lid locking lever 50 has an allowable lid-opening position close to the cold air rod 60 and a lid-opening restricted position away from the cold air rod 60 in its movement direction. When the pressure inside the pot body 10 is greater than the allowable lid-opening pressure, the cold air rod 60 is lifted, and the lid locking lever 50 is limited to the lid-opening restricted position. When the pressure inside the pot body 10 is less than or equal to the allowable lid-opening pressure, the cold air rod 60 drops, and the lid locking lever 50 can move from the lid-opening restricted position to the allowable lid-opening position under the push of the driving arm 433.

[0038] It should be noted that in Figure 4 and Figure 5 , the electric control driving mechanism 40 drives the rotating member 30 to rotate to make the cooking appliance in the lid-open state. At this time, the cold air rod 60 drops, and the lid locking lever 50 is pushed towards the cold air rod 60 to the allowable lid-opening position. And in Figure 6 and Figure 7 , the electric control driving mechanism 40 drives the rotating member 30 to rotate to make the cooking appliance in the lid-locked state. At this time, the lid locking lever 50 is pushed away from the cold air rod 60 to the lid-opening restricted position.

[0039] As Figures 3 to 7 shown, the rotating member 30 includes a first driving arm 33 and a second driving arm 34 connected to each other. Among them, the first pivot point 31 is formed at the first end of the first driving arm 33. The second end of the first driving arm 33 is connected to the lid-locking mechanism. One end of the second driving arm 34 away from the first driving arm 33 is pivotally connected to the rotating crank arm 44. In this way, the electric control driving mechanism 40 reliably realizes the rotation of the first driving arm 33 by applying a pulling force or a pushing force to the second driving arm 34, and further conveniently drives the rotating member 30 to rotate to achieve electric lid-opening or electric lid-locking.

[0040] In this embodiment, the first driving arm 33 and the second driving arm 34 are at a preset angle, and the second driving arm 34 is arranged on a side of the first driving arm 33 away from the motor 41. The connecting arm 432 is staggered with the first driving arm 33, and the first driving arm 33 is located above the connecting arm 432.

[0041] It should be noted that, in the present application, the upper cover 21 includes an inner lining 211 and a surface cover 212 arranged outside the inner lining 211, the electric control drive mechanism 40 is arranged on the inner lining 211, and an operation panel is arranged on the surface cover 212. The cooking appliance also includes a control panel, and the operation panel is electrically connected to the electric control drive mechanism 40 through the control panel.

[0042] Optionally, the control panel is a PCB control board.

[0043] like Figure 4 and Figure 6 As shown, a slide groove 213 is provided in the inner lining 211 , and the rotating member 30 is drivingly connected to the lock cover via a connecting rod 70 that slides in the slide groove 213 along the length direction of the slide groove 213 .

[0044] It should be noted that the pot body 10 includes an outer pot and an inner pot disposed within the outer pot. The outer pot includes a heat-insulating cover. The inner pot or the heat-insulating cover is provided with pot teeth, and the locking lid has lid teeth. The rotating member 30 has, in its rotational direction, an unlocked position in which the pot and lid teeth are misaligned, and a locked position in which the pot and lid teeth are locked. Specifically, when the rotating member 30 rotates to the unlocked position in which the pot and lid teeth are misaligned, the pot lid 20 is opened relative to the pot body 10, and the cooking appliance is in an open lid state. When the rotating member 30 rotates to the locked position in which the pot and lid teeth are locked, the pot lid 20 is locked relative to the pot body 10, and the cooking appliance is in a locked lid state.

[0045] Optionally, the cooking appliance further comprises a heating device, which is arranged in the outer pot and not in contact with the bottom of the inner pot, so as to heat the inner pot.

[0046] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0047] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, further discussion thereof is not required in subsequent drawings.

[0048] For the sake of convenience of description, spatial relative terms such as "above", "on top of", "on the upper surface", "upper" etc. may be used here to describe the spatial positional relationship of one device or feature shown in the drawings with other devices or features. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the drawings of the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "on top of other devices or structures" will then be positioned "below other devices or structures" or "beneath other devices or structures". Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations are made for the spatial relative descriptions used here.

[0049] It should be noted that the terms used here are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used here, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0050] It should be noted that the terms "first", "second", etc. in the specification, claims, and above-mentioned drawings of the present application are used to distinguish similar objects and do not necessarily have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described here can be implemented in an order different from those illustrated or described here.

[0051] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A cooking utensil, characterized in that: include: Pot body (10); A pot cover (20), the pot cover (20) is arranged on the pot body (10), the pot cover (20) comprises an upper cover (21) and a locking cover, and the locking cover is rotatably arranged below the upper cover (21); A rotating member (30), the rotating member (30) being rotatably disposed on the upper cover (21) and driving the locking cover to rotate; an electrically controlled drive mechanism (40), the electrically controlled drive mechanism (40) being arranged on the upper cover (21), the electrically controlled drive mechanism (40) comprising a rotating crank arm (44), the rotating crank arm (44) being drivingly connected to the rotating member (30) and used for driving the rotating member (30) to rotate, thereby realizing electrically controlled opening or locking of the cover of the cooking appliance; The rotating member (30) has a first pivot point (31) connected to the upper cover (21), and the first pivot point (31) is located at the center of the upper cover (21). The electric control drive mechanism (40) includes a drive motor (41), a screw (42), a transmission member (43) and the rotating crank arm (44). The screw (42) is driven and connected to the drive motor (41), and the transmission member (43) is connected to the screw (42) to move back and forth under the drive of the screw (42). The first end of the rotating crank arm (44) is pivotally connected to the transmission member (43), and the second end of the rotating crank arm (44) is pivotally connected to the rotating member (30) to form a second pivot point (32) spaced from the first pivot point (31). The transmission member (43) has an avoidance recess arranged corresponding to the first pivot point (31); The transmission member (43) includes a fixing frame (431) and a connecting arm (432), wherein a first end of the fixing frame (431) is detachably connected to the screw rod (42) via a threaded cap (45), a first end of the connecting arm (432) is pivotally connected to a second end of the fixing frame (431) via a pivot shaft (46), and a second end of the connecting arm (432) is pivotally connected to the rotating crank arm (44); The cooking utensil further comprises a stopper rod (50), which is movably arranged on the upper cover (21) to prevent the pot cover (20) from opening when the pressure in the pot body (10) is greater than the pressure allowing the pot cover to open. A driving arm (433) is connected between the first end of the connecting arm (432) and the second end of the connecting arm (432). The driving arm (433) is drivingly connected to the stopper rod (50) and is used to push or pull the stopper rod (50).

2. The cooking appliance according to claim 1, wherein The cooking appliance further comprises a cooling rod (60) floatingly arranged on the upper cover (21), and the opening-stopping rod (50) has a cover-opening permission position close to the cooling rod (60) and a cover-opening restriction position away from the cooling rod (60) in its movement direction; when the pressure in the pot body (10) is greater than the cover-opening permission pressure, the cooling rod (60) is lifted up and the opening-stopping rod (50) is limited to the cover-opening restriction position; when the pressure in the pot body (10) is less than or equal to the cover-opening permission pressure, the cooling rod (60) falls back, and the opening-stopping rod (50) can be moved from the cover-opening restriction position to the cover-opening permission position under the push of the driving arm (433).

3. The cooking appliance according to claim 1, wherein The rotating member (30) includes a first driving arm (33) and a second driving arm (34) connected to each other, wherein the first pivot point (31) is formed at a first end of the first driving arm (33), the second end of the first driving arm (33) is connected to the locking cover, and an end of the second driving arm (34) away from the first driving arm (33) is pivotally connected to the rotating crank arm (44).

4. The cooking appliance according to claim 1, wherein The upper cover (21) comprises an inner lining (211) and a surface cover (212) arranged outside the inner lining (211); the electric control drive mechanism (40) is arranged on the inner lining (211); an operation panel is arranged on the surface cover (212); the cooking appliance further comprises a control panel; the operation panel is electrically connected to the electric control drive mechanism (40) via the control panel.

5. The cooking appliance according to claim 4, wherein: A sliding groove (213) is provided in the inner lining (211), and the rotating member (30) is drivingly connected to the locking cover via a connecting rod (70) that slides in the sliding groove (213) along the length direction of the sliding groove (213).

6. The cooking appliance according to claim 1, wherein The pot body (10) comprises an outer pot and an inner pot arranged in the outer pot, the outer pot comprises a heat-insulating cover, the inner pot or the heat-insulating cover is provided with pot teeth, the locking cover has cover teeth, and the rotating member (30) has an unlocking position in its rotation direction for misaligning the pot teeth and the cover teeth and a locking position for locking the pot teeth and the cover teeth.

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