CN214433608U - Cooking utensil - Google Patents

Abstract

The utility model discloses a cooking utensil, it includes a kind of deep pot body, organism, first coupling device, second coupling device and supply circuit, covers at a kind of deep pot body and closes under the state to a kind of deep pot body seat, first coupler and the electric coupling of second coupler each other, under the state of the preset position of a kind of deep pot body coupling to organism, the electric coupling of third coupler and fourth coupler each other, supply circuit configuration is: in the closed state, the first heating device can be powered by the first coupler and the second coupler being electrically coupled to each other and the third coupler and the fourth coupler being electrically coupled to each other. According to the utility model discloses a cooking utensil, under the state that a kind of deep pot body lid and a kind of deep pot body seat all installed in place, supply circuit just is closed, and then under the state of first coupling device and second coupling device coupling, can supply power and then realize keeping warm to the heating in culinary art space for first heating device.

Description

Cooking utensil

Technical Field

The utility model relates to a cooking utensil technical field especially relates to a cooking utensil.

Background

In the existing cooking appliance, for the convenience of use of a user, a cooker body and a machine body with a heating platform are designed into separable structures. In order to obtain better culinary art effect, the integral type rice cooker all sets up three-dimensional heating system a lot, to the components of a whole that can function independently rice cooker, because the a kind of deep pot body can dismantle the connection, power supply system on the body frame, the a kind of deep pot body if will realize three-dimensional heating, needs special design power supply system, this application is to the automatic rice cooker of this components of a whole that can function independently, designs the problem that a power supply system realized split type cooking utensil power supply.

SUMMERY OF THE UTILITY MODEL

In the summary section a series of concepts in a simplified form is introduced, which will be described in further detail in the detailed description section. The inventive content does not imply any attempt to define the essential features and essential features of the claimed solution, nor is it implied to be intended to define the scope of the claimed solution.

In order to solve the above problem at least partially, the utility model discloses a cooking utensil, it includes:

the cooker body comprises a cooker body seat, an inner pot positioned in the cooker body seat and a cooker body cover arranged on the cooker body seat, a cooking space is formed between the cooker body cover and the inner pot, and the cooker body cover is provided with a first heating device;

the cooker body is detachably connected with the cooker body, and the cooker body is provided with a power supply circuit;

the first coupling device comprises a first coupler and a second coupler, the first coupler is arranged on the cooker body cover, the second coupler is arranged on the cooker body seat, and the first coupler is electrically connected with the first heating device;

the second coupling device comprises a third coupler arranged on the cooker body seat and a fourth coupler arranged on the machine body, the third coupler is electrically connected with the second coupler, and the fourth coupler is electrically connected with the power supply circuit;

the first coupler and the second coupler are electrically coupled to each other in a state where the pot body cover is closed to the pot body seat, the third coupler and the fourth coupler are electrically coupled to each other in a state where the pot body is connected to a predetermined position of the machine body, and the power supply circuit is configured to: in the closed state, the first heating device may be powered by the first and second couplers being electrically coupled to each other and the third and fourth couplers being electrically coupled to each other.

According to the utility model discloses a cooking utensil, all install under the state that targets in place at a kind of deep pot body lid and a kind of deep pot body seat, supply circuit is just closed, and under the state of first coupler and second coupler electric coupling each other and third coupler and fourth coupler electric coupling each other, can supply power and then realize heating and/or keeping warm to the culinary art space for first heating device, if any one does not install correctly in a kind of deep pot body seat and a kind of deep pot body lid, then supply circuit can not be closed, therefore, even first coupling device and second coupling device are in the electric coupling state, also can not realize the power supply to first heating device.

Preferably, the cooking appliance further comprises a linkage in-place power supply detection mechanism and a control device, the linkage in-place power supply detection mechanism is configured to send an in-place signal to the control device in a state that the pot body is connected to a preset position of the machine body and the pot body cover is covered to the preset position of the pot body seat, and the control device is configured to control the power supply circuit to be closed according to the in-place signal so as to supply power to the first heating device.

Therefore, through the common cooperation of the linkage in-place power supply detection mechanism and the control device, the first heating device can be immediately supplied with power after the pot body cover and the pot body seat of the cooking appliance are both installed in place.

Preferably, the machine body is provided with a second heating device, the fourth coupler is further electrically connected with the second heating device, and the power supply circuit can supply power to the second heating device in the closed state.

Therefore, under the state that the cooker body is connected to the preset position of the machine body and the cooker body cover is covered to the preset position of the cooker body seat, the power supply circuit is closed, and the power supply of the second heating device can be realized through the electric coupling of the second coupling device.

Preferably, the cooking appliance further comprises a signal detection assembly, and the power supply circuit can supply power to the signal detection assembly in a closed state.

Therefore, the closing of the power supply circuit can also realize the power supply of the signal detection component.

Preferably, the third coupler is a coupling insert, the fourth coupler is a coupling elastic member, and the coupling insert is inserted and abutted against the coupling elastic member to be electrically coupled under a predetermined position where the pot body is connected to the machine body.

Thereby, a precise electrical coupling is achieved by the cooperation of the coupling spring and the coupling insert.

Preferably, the linkage in-place power supply detection mechanism comprises an in-place detection piece arranged on the machine body and a to-be-detected structure arranged on the pot body, wherein the in-place detection piece is configured to detect the to-be-detected structure in a state that the pot body is connected to a preset position of the machine body and the pot body cover is covered to the preset position of the pot body seat, and transmit the detected in-place signal to the control device.

Therefore, whether the cooker body seat and the cooker body cover are installed in place or not can be accurately known through the linkage in-place power supply detection mechanism.

Preferably, the in-place detection member is an electromagnetic induction element, and the structure to be detected comprises a magnetic generation element matched with the electromagnetic induction element.

Therefore, under the state that the cooker body is connected to the preset position of the machine body and the cooker body cover is covered to the preset position of the cooker body seat, the electromagnetic induction element can detect the magnetic field generated by the magnetic generation element and further send a position signal to the control device.

Preferably, the structure to be detected includes the magnetism generating element provided to one of the pot body cover and the pot body seat, and a trigger element provided to the other of the pot body cover and the pot body seat, and in a state where the pot body is connected to a predetermined position of the machine body and the pot body cover is covered with the pot body seat, the trigger element acts on the magnetism generating element to move the magnetism generating element from an initial position to a position to be detected by the electromagnetic induction element.

Therefore, under the state that the cooker body is connected to the preset position of the machine body and the cooker body cover is covered with the cooker body seat, the triggering element can enable the magnetic generating element to move and be detected by the electromagnetic induction element, and then the electromagnetic induction element sends the generated in-place signal to the control device.

Preferably, a fool-proof seat is arranged at the edge of the opening of the pot body seat, the fool-proof seat is internally provided with the magnetic generation element and an elastic element, the magnetic generation element is connected to the fool-proof seat through the elastic element, the magnetic generation element is located at the initial position when the elastic element is in a natural state, and is located at the in-place position when the elastic element is in a compressed state.

Therefore, in the state that the cooker body cover is covered to the preset position of the cooker body seat, the magnetic generating element can move to the in-place position through the elastic element to be detected by the electromagnetic induction element.

Preferably, the cooker body cover is provided with an installation part for installing the trigger element, the fool-proof seat is further provided with an avoiding groove, the cooker body is connected to the preset position of the machine body, the cooker body cover covers the preset position of the cooker body seat, and the trigger element penetrates through the avoiding groove to act on the magnetic generating element to enable the magnetic generating element to move to the in-place position and be detected by the electromagnetic induction element.

Therefore, under the state that the cooker body is connected to the preset position of the machine body and the cooker body cover covers the preset position of the cooker body seat, the installation part corresponds to the fool-proof seat, and the trigger element passes through the avoiding groove in an aligning mode, so that the magnetic generating element moves to the in-place position and is detected by the electromagnetic induction element.

Drawings

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

fig. 1 is a perspective sectional view of a cooking appliance according to a preferred embodiment of the present invention, in which a pot body is seated on a machine body with a feed arm assembly in an initial position;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is an exploded perspective view of the pot body of FIG. 1 showing the first coupling means;

FIG. 4 is a perspective view of one perspective of the pot cover shown in FIG. 1;

FIG. 5 is a perspective view of one perspective of the pot body base shown in FIG. 1;

FIG. 6 is a cross-sectional view of the pot cover and the pot base of FIG. 1 showing the magnetism generating element in an initial position; and

fig. 7 is a cross-sectional view of the pot cover and the pot base shown in fig. 1, showing the magnetism generating element in a seated position.

Description of reference numerals:

100: the cooking appliance 110: pot body

111: the pot body seat 112: pot body cover

120: food receiving portion 139: material conveying arm

150: the body 113: inner pot

151: second heating device 153: water tank

128: mounting the cover 170: control panel

141: electromagnetic induction element 116: fool-proof groove

142: magnetic generating element 143: trigger element

144: the elastic member 114: first heating device

181: second coupler 191: third coupler

192: fourth coupler 117: dodging groove

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that embodiments of the invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring embodiments of the present invention.

In the following description, a detailed structure will be presented for a thorough understanding of embodiments of the invention. It is apparent that the implementation of the embodiments of the present invention is not limited to the specific details familiar to those skilled in the art. The preferred embodiments of the present invention are described in detail below, however, other embodiments of the invention are possible in addition to these detailed descriptions.

Fig. 1 to 7 show a cooking appliance 100 according to a preferred embodiment of the present invention. The cooking appliance 100 may be an electric rice cooker, an electric pressure cooker, or other cooking appliances, and may have various functions such as cooking rice, cooking porridge, cooking soup, and the like.

As shown in fig. 1, the cooking appliance 100 of the present embodiment is a split cooking appliance. Specifically, the cooking appliance 100 includes a body 150 and a pot body 110, and the pot body 110 is detachably connected to the body 150.

The pot body 110 may specifically include a pot body seat 111 and a pot body cover 112. The pot body seat 111 may be provided therein with a cylindrical inner pot accommodating portion, and the inner pot 113 may be freely placed in or taken out of the inner pot accommodating portion to facilitate cleaning of the inner pot 113. The upper surface of the inner pot 113 has a circular opening for containing a material to be heated, such as rice, soup, etc., into the inner pot 113. The pot body cover 112 is openably and closably provided on the pot body base 111, and when the pot body cover 112 is closed on the pot body base 111, a cooking space can be formed between the pot body cover 112 and the inner pot 113. The cooker body cover 112 is further provided with a first heating device 114, which can be used for keeping the inner pot warm after being powered.

In particular, the cooking appliance further comprises a first coupling means. The first coupling means comprises a first coupler and a second coupler 181. The first coupler is disposed on the cooker body cover 112, the second coupler 181 is disposed on the cooker body seat 111, the first coupler is electrically connected to the first heating device 114, the second coupler 181 is electrically connected to the power supply circuit in the machine body 150, and the first coupler and the second coupler 181 are electrically coupled to each other in a state where the cooker body cover 112 is closed to the cooker body seat 111.

As shown in fig. 1, the body 150 is substantially L-shaped, and a second heating device 151 may be disposed at a horizontal section of the L-shaped body 150. The second heating device 151 may be a heat-generating coil disk. The pot body base 111 and the second heating means 151 may be electrically connected in a state where the pot body 110 is rested to the machine body 150, and the second heating means 151 may heat the inner pot 113 in a state where the cooking appliance 100 is powered on. Signal detection components such as a temperature sensor (not shown) and a water level sensor (not shown) may be further provided at the horizontal section of the L-shaped body 150. These signal detection components can be electrically connected to the control panel 170 below. The body 150 is further provided with a power supply circuit, which can supply power to the first heating device 114 in a closed state.

As shown in fig. 2, a food receiving part 120 may be provided at a vertical section of the L-shaped body 150, and the food receiving part 120 is located above the pot body 110 and has a first feeding hole and a first discharging hole. The food container 120 may further be provided with a mounting cover 128, the mounting cover 128 is used for covering the first feeding hole to seal the top of the food container 120, and when the user needs to supplement the food into the food container 120, the user can add the food by opening the mounting cover 128. The material in the food container 120 is not limited to rice, and may be food materials such as beans.

The control panel 170 of the cooking appliance 100 may also be integrated in the mounting cover 128, and the control panel 170 is a control center of the entire cooking appliance 100 and controls all the electric components. The mounting cover 128 may also be provided with an operation panel electrically connected to the control panel 170 for receiving user input (such as water intake, rice intake, etc.), and a display device for displaying the weight of the remaining materials in the food container 120 and the amount of water remaining in the water supply device of the cooking appliance 100.

A material conveying device may be further provided below the food receiving part 120 to convey the material to the cooking space. Specifically, the material transfer device includes a delivery arm assembly 139, and the delivery arm assembly 139 is movable between an initial position (shown in FIG. 1) and a feed position.

When the material conveying arm assembly 139 is in the initial position, the material conveying channel is disconnected; in a state where the feeding arm assembly 139 is in the feeding position, the feeding passage is conducted so that the food material from the food accommodating part can be transported to the cooking space.

With continued reference to fig. 1, the cooking appliance 100 further includes a linkage-to-position power supply detection mechanism. The linked in-place power supply detecting mechanism is configured to send an in-place signal to the control device (the control panel 170, the control panel 170 is configured to control the power supply circuit to close according to the in-place signal so as to supply power to the first heating device 114, in a state that the pot body 110 is connected to a predetermined position of the machine body 150 and the pot body cover 112 is covered to a predetermined position of the pot body base 111.

It can be understood that in the state that the pot body 110 is connected to the predetermined position of the machine body 150 and the pot body cover 112 is covered to the predetermined position of the pot body base 111, the power supply circuit is closed, and at this time, the first coupling means are also electrically coupled with each other, so that the power supply circuit can supply power to the first heating means 114 to heat the inner pot 113.

Of course, the cooking appliance 100 may further include a second coupling device. The second coupling device includes a third coupler 191 disposed on the pot body seat 111 and a fourth coupler 192 disposed on the machine body 150. The third coupler 191 is electrically connected to the second coupler 181, and the fourth coupler 192 is electrically connected to the power supply circuit. The third coupler 191 and the fourth coupler 192 are electrically coupled with each other in a state where the pot body 110 is connected to a predetermined position of the machine body 150. Thus, it can be understood that, after the power supply circuit is closed, the third coupler 191 and the fourth coupler 192 are electrically coupled to each other, and then the first coupler 181 and the second coupler 181 are electrically coupled to each other, so that the power supply to the first heating device 114 is finally realized.

Further, the fourth coupler 192 may also be electrically connected with the second heating means 151, and in a state where the pot body is connected to a predetermined position of the body 150, the third coupler 191 and the fourth coupler 192 are electrically coupled with each other to supply power to the second heating means.

As shown in fig. 2, the third coupler 191 may be a coupling insert, and the fourth coupler 192 may be a coupling elastic member, for example, a coupling spring. The coupling insert is inserted against the coupling elastic member to be electrically coupled under a predetermined position where the pot body 110 is connected to the body 150.

Referring next to fig. 4 to 7, the linked in-place power supply detecting mechanism includes an in-place detecting member provided to the body 150 and a to-be-detected structure provided to the pot body 110. The in-place detecting member is configured to detect the structure to be detected in a state where the pot body 110 is connected to a predetermined position of the machine body 150 and the pot body cover 112 is covered with the pot body base 111, and transmit a detected in-place signal to the control device. The position detector may be the electromagnetic induction element 141 in the present embodiment, and may be an infrared induction element in other embodiments.

From this, controlling means can be through the cooperation that targets in place the detection piece and the power supply detection mechanism that the linkage targets in place, and the signal that targets in place is received to the predetermined position of a kind of deep pot body seat at the predetermined position of a kind of deep pot body coupling to organism and a kind of deep pot body lid closed to learn cooking utensil and install to target in place, realize opening to the cooking utensil power supply.

Specifically, the structure to be detected may include a magnetism generating element 142 provided to one of the pot cover 112 and the pot base 111, and a triggering element 143 provided to the other of the pot cover 112 and the pot base 111. As shown in fig. 6 and 7, the magnetism generating element 142 is provided to the pot body holder 111, and the trigger element 143 is provided to the pot body cover 112. It is understood that in other embodiments, it is also possible that the magnetism generating element is provided to the pot body cover and the triggering element is provided to the pot body seat. In a state that the pot body 110 is connected to a predetermined position of the machine body 150 and the pot body cover 112 is covered with the pot body base 111, the trigger element 143 acts on the magnetism generating element 142 to move it from the initial position to the position and is detected by the electromagnetic induction element 141.

More specifically, as shown in fig. 4, the opening edge of the pot body seat 111 is provided with a fool-proof seat 115, the fool-proof seat 115 is a boss protruding from the opening edge of the pot body seat 111 in the present embodiment, the magnetism generating element 142 and the elastic element 144 are provided in the fool-proof seat 115, the magnetism generating element 142 is connected to the fool-proof seat 115 through the elastic element 144, the magnetism generating element 142 is located at an initial position (as shown in fig. 6) when the elastic element 144 is in a natural state, and is located at a position (as shown in fig. 7) when the elastic element 144 is in a fully compressed state.

Correspondingly, as shown in fig. 4, the cooker body cover 112 is provided with a fool-proof groove 116 for cooperating with the fool-proof seat 115, the trigger element 143 is disposed in the fool-proof groove 116, and the fool-proof seat 115 is further provided with an avoiding groove 117. In a state where the pot body 110 is connected to a predetermined position of the machine body 150 and the pot body cover 112 is covered to a predetermined position of the pot body base 111, the trigger element 143 passes through the avoiding groove 117 to act on the magnetism generating element 142 to move to a proper position and is detected by the electromagnetic induction element 141.

Referring back to fig. 1, a water inlet channel may be further disposed in the material delivery arm assembly 139, and correspondingly, a water supply device may be further disposed in the body 150 of the cooking appliance 100, the water supply device in this embodiment includes a water tank 153, water in the water tank 153 may be pumped to a water inlet channel (not shown in the figure) in the material delivery arm assembly 139 through a pumping assembly, and in a state where the material delivery arm assembly 139 is in a feeding position, the other end of the water inlet channel is communicated with a water inlet disposed in the pot body cover 112 to inject water into the cooking space.

It can be understood that the magnetism generating element 142 and the electromagnetic induction element 141 are at the same level in a state that the pot body 110 is coupled to a predetermined position of the machine body 150 and the pot body cover 112 is closed to a predetermined position of the pot body base 111. The predetermined position described herein can be understood as a position of the pot body 110 on the machine body 150 where the electromagnetic induction element 141 can detect the magnetism generating element 142. Preferably, as shown in fig. 1, in a state that the pot body 110 is connected to a predetermined position of the machine body 150 and the pot body cover 112 is covered to the predetermined position of the pot body base 111, the distance between the magnetism generating element 142 and the electromagnetic induction element 141 is less than or equal to 20 mm. Thus, the detection accuracy of the electromagnetic induction element can be ensured.

According to the utility model discloses a cooking utensil, all install under the state that targets in place at a kind of deep pot body lid and a kind of deep pot body seat, supply circuit is just closed, and then under the state of acting on a kind of deep pot body lid and a kind of deep pot body seat's first coupling device coupling, can supply power and then realize heating and/or keeping warm to the culinary art space for first heating device, if any one does not install correctly in a kind of deep pot body seat and a kind of deep pot body lid, then supply circuit can not be closed, therefore, even first coupling device is in the electric coupling state, also can not realize the power supply to first heating device.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Terms such as "component" and the like, when used herein, can refer to either a single part or a combination of parts. Terms such as "mounted," "disposed," and the like, as used herein, may refer to one component as being directly attached to another component or one component as being attached to another component through intervening components. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is otherwise inapplicable or otherwise stated in the other embodiment.

The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. It will be appreciated by those skilled in the art that many more modifications and variations are possible in light of the above teaching and are intended to be included within the scope of the invention.

Claims (10)

1. A cooking appliance, comprising:

the cooker body (110) comprises a cooker body seat (111), an inner pot positioned in the cooker body seat (111) and a cooker body cover (112) arranged on the cooker body seat (111), a cooking space is formed between the cooker body cover (112) and the inner pot (113), and the cooker body cover (112) is provided with a first heating device (114);

the cooker body (110) is detachably connected to the cooker body (150), and the cooker body (150) is provided with a power supply circuit;

a first coupling means including a first coupler and a second coupler (181), the first coupler being provided to the pot body cover (112), the second coupler (181) being provided to the pot body seat (111), the first coupler being electrically connected with the first heating means (114);

the second coupling device comprises a third coupler arranged on the cooker body seat and a fourth coupler arranged on the machine body, the third coupler is electrically connected with the second coupler, and the fourth coupler is electrically connected with the power supply circuit;

the first coupler and the second coupler are electrically coupled to each other in a state where the pot body cover (112) is closed to the pot body seat (111), and the third coupler and the fourth coupler are electrically coupled to each other in a state where the pot body (110) is connected to a predetermined position of the machine body (150), the power supply circuit being configured to: in the closed state, the first heating device (114) may be powered by the first and second couplers being electrically coupled to each other and the third and fourth couplers being electrically coupled to each other.

2. The cooking appliance according to claim 1, further comprising a linked-in-place power supply detection mechanism configured to send an in-place signal to a control device in a state where the pot body (110) is connected to a predetermined position of the machine body (150) and the pot body cover (112) is closed to a predetermined position of the pot body seat (111), and the control device configured to control the power supply circuit to be closed to supply power to the first heating device (114) according to the in-place signal.

3. The cooking appliance of claim 1, wherein the body is provided with a second heating device, the fourth coupler being further electrically connected to the second heating device, the power supply circuit being operable to supply power to the second heating device in the closed state.

4. The cooking appliance of claim 1, further comprising a signal detection assembly, wherein the power supply circuit is operable to power the signal detection assembly in the closed state.

5. The cooking appliance according to claim 1, wherein the third coupler is a coupling insert and the fourth coupler is a coupling elastic member, the coupling insert being inserted against the coupling elastic member to be electrically coupled in a predetermined position where the pot body (110) is connected to the body (150).

6. The cooking appliance according to claim 2, wherein the linked in-place power supply detection mechanism comprises an in-place detection piece provided to the machine body (150) and a to-be-detected structure provided to the pot body (110), and the in-place detection piece is configured to detect the to-be-detected structure in a state where the pot body (110) is connected to a predetermined position of the machine body (150) and the pot body cover (112) is covered to the predetermined position of the pot body seat (111), and transmit the detected in-place signal to the control device.

7. The cooking appliance according to claim 6, wherein the position detecting member is an electromagnetic induction element (141), and the structure to be detected comprises a magnetism generating element (142) cooperating with the electromagnetic induction element (141).

8. The cooking appliance according to claim 7, wherein the structure to be detected comprises the magnetism generating element (142) provided to one of the pot body cover (112) and the pot body seat (111), and a triggering element (143) provided to the other of the pot body cover (112) and the pot body seat (111), the triggering element (143) acting on the magnetism generating element (142) to move it from an initial position to a home position to be detected by the electromagnetic induction element (141) under a predetermined position in which the pot body (110) is attached to the machine body (150) and the pot body cover (112) is closed to the pot body seat (111).

9. The cooking appliance according to claim 8, wherein the opening edge of the pot body seat (111) is provided with a fool-proof seat (115), the fool-proof seat (115) being provided with the magnetic generating element (142) and an elastic element (144), the magnetic generating element (142) being connected to the fool-proof seat (115) by the elastic element (144), the magnetic generating element (142) being located in the initial position when the elastic element (144) is in a natural state and in the in-place position when the elastic element (144) is in a compressed state.

10. The cooking appliance according to claim 9, wherein the pot body cover (112) is provided with a mounting portion for mounting a trigger element, the fool-proof seat (115) is further provided with an avoiding groove (117), and the trigger element (143) passes through the avoiding groove (117) to act on the magnetism generating element (142) to move to the in-position to be detected by the electromagnetic induction element (141) in a state that the pot body (110) is connected to a predetermined position of the machine body (150) and the pot body cover (112) is closed to the predetermined position of the pot body seat (111).

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