Cover body assembly and electric cooker

Abstract

The invention provides a cover body assembly which comprises a pot cover, and a sealing piece is installed on the bottom face of the pot cover. A containing cavity is formed in the top face of the pot cover, a first through hole is formed in the bottom of the containing cavity in a penetrating mode, and a detachable blocking cover is installed at the containing cavity. A second through hole is correspondingly formed in the sealing piece; a water tank is included; the bottom of the water tank can be adaptively mounted at the accommodating cavity, a water outlet is formed in the bottom of the water tank, and the position of the water outlet corresponds to that of the first through hole; a pushing piece is installed in the pot cover and used for opening a valve piece of the water tank to achieve drainage. The action of adding water before cooking is achieved by additionally arranging the water storage container and starting water supply in a timed mode, and the situation that rice grains are soaked for a long time, and the taste of rice is affected is effectively prevented.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electric rice cookers, and more particularly to a cover assembly and an electric rice cooker. BACKGROUND

[0002] Most of the current electric rice cookers have a pre-cooking function, and some users will add rice and water to the pot in advance at night and pre-arrange the cooking action in the morning. Although it can save time and effort, the rice grains are in a soft state after long soaking, and the cooked rice is even soft and tasteless, so it needs to be improved. SUMMARY

[0003] In order to overcome the defects of the prior art, the technical problem to be solved by the present application is to provide a cover assembly and an electric rice cooker, which realizes the action of adding water before cooking by adding a water storage container and starting water supply at a certain time, effectively preventing the rice grains from being soaked for a long time and affecting the taste of the rice.

[0004] To achieve this purpose, the present application adopts the following technical solutions:

[0005] The present application provides a cover assembly, comprising a pot cover, a sealing element is installed on the bottom surface of the pot cover; a receiving cavity is provided on the top surface of the pot cover, a first through hole is provided through the bottom of the receiving cavity, and a detachable plug cover is installed at the receiving cavity; a second through hole is provided on the sealing element; a water tank is included; the bottom of the water tank is adaptively installed at the receiving cavity, the bottom of the water tank is provided with a drain port, and the position of the drain port corresponds to the position of the first through hole; a pushing element is installed inside the pot cover for opening the valve element of the water tank to realize drainage.

[0006] In the preferred technical solution of the present application, the pot cover comprises a support frame and a face cover; a sink is provided on the top surface of the support frame, a first groove and a second groove are provided on the groove bottom of the sink, and the first through hole is provided in the middle of the groove bottom of the first groove; a first stop ring protruding upward is fixedly provided at the groove opening of the first groove and the second groove; the face cover is provided with a first circular hole corresponding to the first groove, the hole diameter of the first circular hole is adapted to the inner diameter of the first groove, the face cover is installed on the top of the sink and abuts against the top surface of the first stop ring when the face cover is closed, so that the first circular hole and the first groove form a receiving cavity; the first groove and the second groove are communicated through a first through hole, and the pushing element is installed at the second groove, and the pushing part extends into the first groove through the first through hole.

[0007] In the preferable technical scheme of the present application, the water tank comprises a tank body, a clamping block is fixedly arranged on the bottom surface of the tank body, the shape of the clamping block is matched with that of the accommodating cavity; the bottom surface of the tank body is provided with a drain port penetrating through the bottom surface of the clamping block; the valve member comprises a baffle and a plugging assembly; the baffle is rotatably arranged above the top end of the drain port, and when the lower end of the baffle is pressed against the top end of the drain port, the baffle can shield and plug the drain port; the plugging assembly is arranged on the clamping block and is used for plugging the middle part of the drain port; the plugging assembly is adjusted and opened by the pushing member, and the baffle is lifted together to release the plugging of the top end of the drain port.

[0008] In the preferable technical scheme of the present application, the clamping block is provided with a first guide hole in the radial direction, the first guide hole passes through the center of the clamping block and is communicated with the drain port; one end of the first guide hole penetrates through the outer wall of the clamping block, and the middle part of the other end surface is provided with a second guide hole penetrating through the outer wall of the clamping block; the plugging assembly comprises a plugging block, a spring and a plug; the plug is arranged on the end of the first guide hole away from the second guide hole through a bolt; the plugging block and the spring are arranged in the first guide hole, the shape of the plugging block is matched with that of the first guide hole, and the plugging block slides against the outer wall of the first guide hole; a guide column is fixedly arranged on the end surface of the plugging block away from the plug, and the guide column slides along the second guide hole; a water passage penetrating through the upper and lower walls is arranged on the plugging block; the spring is arranged between the plugging block and the plug to provide the plugging block with elastic force for moving in the direction of the second guide hole; when the plugging block is not subjected to external force, one end of the plugging block abuts against the end surface of the first guide hole, and the plugging block forms a cut-off to the middle part of the drain port; when the pushing member exerts force to push the plugging block, the plugging block moves to a position corresponding to the water passage and the drain port to realize water drainage.

[0009] In the preferable technical scheme of the present application, the inside of the end of the baffle away from the rotation fulcrum is embedded with a first magnet block; the inside of the plugging block is correspondingly embedded with a second magnet block, and the same-pole side of the first magnet block and the second magnet block is adjacent to each other; when the pushing member pushes the plugging block to move to the position corresponding to the water passage and the drain port, the second magnet block moves below the first magnet block, the baffle is lifted, and the plugging of the top end of the drain port is released.

[0010] In the preferable technical scheme of the present application, the inside of the end of the plugging block away from the guide column is embedded with a third magnet block, and the different-pole side of the first magnet block and the third magnet block is adjacent to each other; when the plugging block is not subjected to external force, the third magnet block moves below the first magnet block, so that the baffle maintains the plugging of the top end of the drain port.

[0011] In the preferable technical scheme of the present application, the inner wall of the bottom of the box body is provided with a third groove, and the drain port is arranged at the third groove; the two sides of one end of the third groove close to the second guide hole are provided with clamping grooves, the groove bottoms of the clamping grooves are arc-shaped structures; the shape of the baffle is matched with the shape of the third groove, one end of the baffle is fixedly provided with a rotating shaft, the two ends of the rotating shaft extend out of the two sides of the baffle, and the shape of the rotating shaft is matched with the shape of the clamping groove; the two ends of the rotating shaft are clamped and rotated at the clamping grooves, so that the baffle is rotatably arranged at the third groove; the first magnet block is arranged close to the bottom surface of the baffle; the first guide hole is a square hole-shaped structure; the outer wall of the plug is covered with a silica gel sleeve, and the cross-sectional shape is matched with the shape of the first guide hole; the second magnet block and the third magnet block are arranged close to the top surface of the plug.

[0012] In the preferable technical scheme of the present application, the top pushing piece is an electric push rod, and the diameter of the piston rod of the electric push rod is matched with the hole diameter of the first perforation and the second guide hole.

[0013] In the preferable technical scheme of the present application, two clamping columns arranged around the central circumference are fixedly arranged on the groove wall of the first groove; a sliding groove is correspondingly arranged on the outer wall of the clamping block, and a clamping opening extending to the bottom surface of the clamping block is arranged on the end bottom surface of the sliding groove; a soft rubber pad is fixedly arranged on the end bottom surface of the sliding groove away from the clamping opening; the clamping column enters the sliding groove through the clamping opening, the water tank is rotated to move the clamping block to the position where the clamping column is located at the end of the sliding groove, and the clamping column is clamped at the end of the sliding groove through the soft rubber pad.

[0014] The present application also provides an electric rice cooker comprising the cover assembly.

[0015] The present application has the following advantages:

[0016] The present application provides a cover assembly, which comprises a pot cover, and a sealing element is arranged on the bottom surface of the pot cover; a containing cavity is arranged on the top surface of the pot cover, a first through hole is arranged on the bottom of the containing cavity, and a detachable plug cover is arranged on the containing cavity and is used in non-long interval reservation cooking to meet the daily demand for the reservation cooking function which is not frequently used.

[0017] A second through hole is arranged on the sealing element; a water tank is arranged; the bottom of the water tank is adaptively arranged on the containing cavity, the bottom of the water tank is provided with a drain port, and the position of the drain port corresponds to the position of the first through hole; a top pushing piece is arranged in the pot cover to open the valve of the water tank and realize water drainage; the top pushing piece is used in long interval reservation cooking to meet the action of adding water before cooking, effectively prevent rice from being soaked for a long time to affect the taste of rice, and improve the experience.

[0018] The plug cover and the water tank are detachable structures, and can be selected according to the use demand and habit to improve the applicability; and the replacement operation is simple and convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1is a perspective structural schematic view of a first use state of an electric rice cooker provided in specific embodiments of the present application;

[0020] Figure 2 is a perspective structural schematic view of a second use state of an electric rice cooker provided in specific embodiments of the present application;

[0021] Figure 3 is a perspective expanded structural schematic view of a first use state of a cover assembly provided in specific embodiments of the present application;

[0022] Figure 4 is a perspective expanded structural schematic view of a second use state of a cover assembly provided in specific embodiments of the present application;

[0023] Figure 5 is a perspective expanded structural schematic view of a pot cover provided in specific embodiments of the present application;

[0024] Figure 6 is a perspective expanded structural schematic view of a support frame provided in specific embodiments of the present application;

[0025] Figure 7 is a perspective expanded structural schematic view of a water tank from a first perspective provided in specific embodiments of the present application;

[0026] Figure 8 is a perspective expanded structural schematic view of a water tank from a second perspective provided in specific embodiments of the present application;

[0027] Figure 9 is a sectional view of a water tank provided in specific embodiments of the present application;

[0028] Figure 10 is a sectional view of a tank provided in specific embodiments of the present application.

[0029] In the drawings:

[0030] 100, pot cover; 110, support frame; 111, first recess; 112, second recess; 113, sink; 114, first through hole; 115, first stop ring; 116, first through hole; 117, clamping column; 120, face cover; 121, first circular hole; 130, accommodating cavity; 200, sealing element; 210, second through hole; 300, plug cover;

[0031] 400, water tank; 410, tank; 411, drain port; 412, third recess; 413, clamping groove; 420, clamping block; 421, first guide hole; 422, second guide hole; 423, sliding groove; 424, clamping port; 425, soft rubber pad; 430, baffle; 431, first magnet block; 432, rotating shaft;

[0032] 500, pushing piece; 600, plugging assembly; 610, plug; 611, guide column; 612, water outlet; 613, second magnet block; 614, second magnet block; 615, silica gel sleeve; 620, spring; 630, plug. DETAILED DESCRIPTION

[0033] The technical solutions of the present application will be further illustrated below in combination with the drawings and through specific embodiments.

[0034] As Figures 3 to 5 shown, a cover assembly is disclosed in the specific embodiment of the present application, which comprises a pot cover 100, the bottom surface of the pot cover 100 is provided with a sealing piece 200; the top surface of the pot cover 100 is provided with a containing cavity 130, the bottom of the containing cavity 130 is provided with a first through hole 114, and a detachable plug cover 300 is installed at the containing cavity 130; a second through hole 210 is provided on the sealing piece 200 in correspondence; a water tank 400 is included; the bottom of the water tank is adaptively installed at the containing cavity, the bottom of the water tank 400 is provided with a water outlet 411, and the position of the water outlet 411 corresponds to the position of the first through hole 114; a pushing piece 500 is installed inside the pot cover 100, which is used to open the valve piece of the water tank and realize water drainage.

[0035] The above-mentioned cover assembly is provided with a detachable plug cover at the containing cavity, which is used in non-long interval reservation cooking, and meets the daily demand of not frequently using the reservation cooking function;

[0036] The containing cavity is provided with a replaceable water tank, which is used in long interval reservation cooking function, meets the action of adding water before cooking, effectively prevents the influence of rice taste caused by long time soaking of rice grains, and improves the experience of use;

[0037] The plug cover and the water tank are detachable structures, which are selected according to the use demand and habit, and improve the applicability; the replacement operation is simple and convenient to use.

[0038] Further, as Figure 6As shown, the pot cover 100 comprises a support frame 110, a face cover 120; the top surface of the support frame 110 is provided with a sink 113, the bottom of the sink 113 is provided with a first groove 111 and a second groove 112, a first through hole 114 is arranged in the middle of the bottom of the first groove 111; the opening of the first groove 111 and the second groove 112 is fixedly provided with a first stop ring 115 which protrudes upward; the face cover 120 is provided with a first circular hole 121 corresponding to the first groove 111, the diameter of the first circular hole is matched with the inner diameter of the first groove, the face cover 120 is installed on the top of the sink 113 and is pressed against the top surface of the first stop ring 115, so that the first circular hole 121 and the first groove 111 form a containing cavity 130; the first groove 111 and the second groove 112 are communicated through a first through hole 116, a pushing member 500 is installed at the second groove 112, and the pushing member extends into the first groove through the first through hole; this design forms a space inside the pot cover which can accommodate corresponding structural components, improves the space utilization rate, and makes the overall structure more compact.

[0039] Wherein, the bottom surface of the face cover is provided with a second stop ring, the inner shape of the second stop ring is matched with the outer shape of the first stop ring, the second stop ring can be surrounded outside the first stop ring, which can strengthen the connection and cooperation between the face cover and the support frame, and on the other hand, it can also strengthen the structural strength of the face cover itself.

[0040] Further, as shown, Figures 7 to 10 The water tank 400 comprises a tank body 410, the bottom surface of the tank body 410 is fixedly provided with a clamping block 420, the shape of the clamping block 420 is matched with the shape of the containing cavity 130; the bottom surface of the tank body 410 is provided with a drain port 411 which penetrates the bottom surface of the clamping block 420; the valve member comprises a baffle 430 and a plugging assembly 600; the baffle 430 is rotatably installed above the top end of the drain port 411, and when the baffle is hung down and pressed against the top end of the drain port, it realizes the shielding and plugging of the drain port; the plugging assembly 600 is installed on the clamping block 420 and is used to cut off the middle part of the drain port; the plugging assembly 600 is adjusted and opened by the pushing member 500, and the baffle 430 is lifted together to release the plugging of the top end of the drain port; this structure design realizes the plugging of the top end of the drain port by the baffle and the cutting off of the middle part of the drain port by the plugging assembly, thereby forming a double plugging effect and effectively preventing liquid from dripping or seeping out;

[0041] Further, the top surface of the water tank is provided with a water inlet in the middle, and a cover is installed on the top of the water inlet to facilitate the injection of cooking water into the water tank; the two end surfaces of the water tank are provided with groove positions which are used as handle functions, which are convenient for grasping and lifting the water tank and facilitate actual use;

[0042] And, the front wall surface of the water tank is fixedly provided with a perspective window, the perspective window is vertically extended, and the edge position is marked with a scale to facilitate the water amount checking; the placement position can also be determined conveniently, and the correct placement direction is the side where the perspective window faces forward, at this time, the top pushing part of the top pushing piece corresponds to the hole position on the clamping block, and the sealing assembly can be adjusted and opened.

[0043] Further, the clamping block 420 is provided with a first guide hole 421 in the radial direction, the first guide hole 421 passes through the center of the clamping block 420 and communicates with the drain port 411; one end of the first guide hole 421 penetrates the outer wall of the clamping block, and the middle of the other end surface is provided with a second guide hole 422 which penetrates the outer wall of the clamping block; the sealing assembly 600 comprises a blocking block 610, a spring 620 and a plug block 630; the plug block 630 is installed at the end of the first guide hole 421 away from the second guide hole through a bolt; the blocking block 610 and the spring 620 are arranged inside the first guide hole 421, the shape of the blocking block 610 is matched with the shape of the first guide hole, and the blocking block 610 slides tightly against the outer wall of the first guide hole 421; the end surface of the blocking block 610 away from the plug block is fixedly provided with a guide column 611 which slides along the second guide hole 422; the blocking block 610 is provided with a water passage 612 which penetrates the upper and lower wall surfaces; the spring 620 is arranged between the blocking block 610 and the plug block 630 to provide the blocking block with a spring force for moving in the direction of the second guide hole; when the blocking block is not subjected to external force, one end of the blocking block abuts against the end surface of the first guide hole, and the blocking block forms a cut-off to the middle part of the drain port; when the top pushing piece exerts force on the blocking block, the blocking block moves to a position where the water passage corresponds to the drain port for conduction, and realizes drainage; the above structure design can change the open / closed state by changing the position of the blocking block, which can maintain the sealing state only under the spring force, at this time, the water tank can be moved conveniently to the faucet for water filling, and the effective sealing state is still maintained during the carrying process; the spring can also be compressed and the baffle can be lifted synchronously by the external top pushing piece exerting force on the blocking block, and the action of removing the sealing can be completed by using small force, the cooking water can be discharged, and the operation is convenient; the above overall structure is simple, and the structure components used are convenient for machining, production and assembly.

[0044] Further, as Figure 9As shown, a first magnet 431 is embedded inside the end of the baffle 430 away from the pivot point; a second magnet 613 is correspondingly embedded inside the block 610, with the same magnetic pole side of the second magnet and the first magnet adjacent to each other; when the pusher pushes the block to the position where the water inlet and the drain outlet are connected, the second magnet moves below the first magnet, the pusher baffle tilts up, and the blockage at the top of the drain outlet is released; the repulsive force between the first and second magnets is used as the force for pushing the baffle, eliminating the need for additional transmission components, and the required pushing effect can be achieved even in a suitable interval space, which is convenient for the overall structural design and layout, eliminating the need to consider sealing and leak prevention issues, and facilitating production and assembly; furthermore, it cleverly utilizes the basis of the block changing the open / closed state by moving the position to achieve a linkage effect, which is convenient for actual adjustment operations.

[0045] Furthermore, a third magnet 614 is embedded inside the end of the block 610 away from the guide post, and the different magnetic pole sides of the third magnet and the first magnet are close to each other; when the block is not subjected to external force, the third magnet moves to the bottom of the first magnet, so that the baffle maintains the top of the drain outlet; by using the magnetic attraction between the third magnet and the first magnet, the baffle can better maintain its position close to the top of the drain outlet, and maintain a good sealing action.

[0046] Furthermore, such as Figures 8 to 10 As shown, the bottom inner wall of the box 410 is provided with a third groove 412, and the drain outlet 411 is located in the third groove 412; the third groove 412 is provided with slots 413 on both sides of one end near the second guide hole, and the bottom of the slots is an arc-shaped structure; the shape of the baffle 430 is adapted to the shape of the third groove 412, and a rotating shaft 432 is fixedly inserted through one end of the baffle 430. The two ends of the rotating shaft extend out of the two sides of the baffle, and the shape of the rotating shaft is adapted to the shape of the slot; the two ends of the rotating shaft 432 are rotatably locked in the slots 413, so that the baffle is rotatably installed in the third recess; the first magnet block 431 is provided near the bottom surface of the baffle 430; the first guide hole 421 is a square hole structure; the outer wall of the block 610 is covered with a silicone sleeve 615, and the cross-sectional shape is adapted to the shape of the first guide hole; the second magnet block 613 and the third magnet block 614 are provided near the top surface of the block 610;

[0047] The above-described structural design allows the baffle to be mounted in the third groove via a pivot, providing the basic conditions for rotation and swing. When the baffle is lifted or tilted, it can release the blockage. When the baffle is not subjected to pushing force, it remains firmly attached to the bottom of the third groove, thus achieving an effective sealing action.

[0048] The first guide hole is a square hole structure, and the plug is a matching structure, which can effectively prevent the plug from rotating and deviating, and can only move forward and backward, facilitating the alignment of the drain port and the water passing port; and the outer wall of the plug is covered with a rubber pad sleeve, which can form a sliding sealing cooperation with the inner wall of the first guide hole, effectively preventing liquid from seeping or leaking from the edge position;

[0049] In addition, the third groove can reduce the thickness, and the first magnet block is close to the bottom surface of the supporting plate, and the second magnet block and the third magnet block are close to the top surface of the plug, so that the interaction force between them is more obvious, and the desired lifting or attracting effect is achieved.

[0050] The end surface of the plug away from the guide column is provided with a first circular groove, the end surface of the plug close to the plug is provided with a second circular groove, and the maximum outer diameter of the spring is matched with the diameters of the first circular groove and the second circular groove. The two ends of the spring are respectively clamped in the first circular groove and the second circular groove, which can prevent the spring from deviating, facilitate installation, and also provide space for deformation and compression of the spring, improve space utilization, and make the overall structure more compact.

[0051] Further, the pusher 500 is an electric push rod, and the piston rod diameter of the electric push rod is matched with the hole diameters of the first perforation and the second guide hole; the electric push rod can be better controlled and can provide sufficient pushing force; and the electric push rod can be adjusted in length by control, so that it can meet the required pushing opening effect, and also can be partially inserted into the second guide hole to achieve the locking effect.

[0052] It should be noted that, since the flow hole diameters are consistent, the water amount can be controlled by controlling the pushing time of the electric push rod, and the rice grain amount is selected during reservation. After the electric push rod is started, the stretching and pushing action is maintained for a predetermined time, so as to meet the corresponding water supply amount. Of course, the required amount of cooking water can also be added in the box according to the amount of rice grains, and the electric push rod is started to run for a sufficient time to ensure that the cooking water is completely discharged into the pot, which also achieves the required water control effect. Both methods can be added to the operation program of the electric rice cooker, and the corresponding selection can be made according to the user's needs.

[0053] Further, as shown in Figure 5 、 Figure 6 The groove wall of the first groove 111 is fixedly provided with two clamping columns 117 arranged around the center circumference; as shown in Figure 7As shown, the outer wall of the clamping block 420 is correspondingly provided with a sliding groove 423, one end of the sliding groove 423 is provided with a clamping hole 424 extending to the bottom surface of the clamping block; the bottom surface of the end of the sliding groove 423 away from the clamping hole is fixedly provided with a soft rubber pad 425; the clamping column enters the sliding groove through the clamping hole, and the clamping block is moved to the position where the clamping column is located at the end of the sliding groove by rotating the water tank, and the clamping column is clamped at the end of the sliding groove through the soft rubber pad; this structure design can realize the locking effect by clamping the two clamping columns in the sliding groove, and it is necessary to select the corresponding position to be detached; wherein the top surface of the soft rubber pad is provided with a convex rib for increasing the friction force, the end of the sliding groove is narrowed by the soft rubber pad, and sufficient friction damping is provided, so that the clamping bead is relatively stable in this part, effectively preventing the clamping block from easily moving, providing preliminary locking and alignment effect, so that the position of the second guide hole corresponds to the position of the first perforation, so that the piston rod of the subsequent electric push rod can be smoothly inserted into the second guide hole for locking and secondary pushing;

[0054] Further, the shape of the plug cover is similar to that of the clamping block, the side wall of the plug cover is correspondingly provided with a sliding groove, a clamping hole, a soft rubber pad and a third guide hole, so that the plug cover can be installed in the accommodating cavity in the same way as the clamping block, which is convenient to operate and use; and the third guide hole penetrates through both sides, without deliberate alignment, which is convenient to install; in addition, during actual use, after the plug cover is installed in place, the locking program can be performed by controlling the keys of the control panel, so that the piston rod of the electric push rod is extended to lock the plug cover and maintain the extended locking state, and the cover cannot be detached from the accommodating cavity before being unlocked;

[0055] Further, the top surface of the plug cover is fixedly provided with a protruding part which can be used as a handle, on the one hand, the plug cover can be easily detached from the accommodating cavity, on the other hand, the plug cover can be used as a gripping part of the entire pot cover when it is in a locked state, which is convenient to open and close;

[0056] The present application also discloses an electric rice cooker comprising the cover assembly; the rear end of the pot cover is rotatably installed on the top of the cooker body, and a hole position for threading is left to electrically connect the electrical devices on the pot cover, and also to control and adjust the electrical devices of the cooker body through the control panel on the pot cover, which is convenient for actual use and operation; the connection structure and wiring method are common in the field of electric rice cookers and are well known to those skilled in the art, and will not be described in detail.

[0057] The present application is described by preferred embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the present application. The present application is not limited to the specific embodiments disclosed herein, and other embodiments falling within the scope of the claims of the present application are within the scope of protection of the present application.

Claims

1. A cover assembly, comprising a pot cover, a sealing member being mounted on the bottom surface of the pot cover; characterized in that: a receiving cavity is arranged on the top surface of the pot cover, a first through hole is arranged on the bottom of the receiving cavity, and a detachable plug cover is arranged on the receiving cavity; a second through hole is arranged on the sealing member in correspondence with the first through hole. 2.A cover assembly according to claim 1, characterized in that: the pot cover comprises a support frame and a surface cover. 3.A cover assembly according to claim 2, characterized in that: the water tank comprises a tank body, a clamping block is fixedly arranged on the bottom surface of the tank body, and the shape of the clamping block is adapted to the shape of the receiving cavity. 4.A cover assembly according to claim 3, characterized in that: the clamping block is provided with a first guide hole in the radial direction, the first guide hole passes through the center of the clamping block and is in communication with the drain port, one end of the first guide hole penetrates the outer wall of the clamping block, and the other end surface is provided with a second guide hole which penetrates the outer wall of the clamping block. 5.A cover assembly according to claim 4, characterized in that: the lower end of the baffle is internally embedded with a first magnet block. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The second magnet block is embedded in the inside of the plug block and is adjacent to the same magnetic pole side of the first magnet block; When the push piece pushes the plug block to the position corresponding to the water outlet and the drainage outlet, the second magnet block moves to the lower side of the first magnet block, the push baffle is raised, and the top end of the drainage outlet is unblocked.

6. The cover assembly of claim 5, wherein: The third magnet block is embedded in the inside of the end of the plug block away from the guide column and is adjacent to the different magnetic pole side of the first magnet block; When the plug block is not subjected to external force, the third magnet block moves to the lower side of the first magnet block, so that the baffle maintains the top end of the drainage outlet.

7. The cover assembly of claim 6, wherein: The bottom inner wall of the box body is provided with a third groove, and the drainage outlet is arranged at the third groove; the two sides of the end of the third groove close to the second guide hole are provided with clamping grooves, and the groove bottoms of the clamping grooves are arc-shaped structures; The shape of the baffle is matched with the shape of the third groove, one end of the baffle is fixedly provided with a rotating shaft, the two ends of the rotating shaft extend out of the two sides of the baffle, the shape of the rotating shaft is matched with the shape of the clamping groove, and the two ends of the rotating shaft are clamped in the clamping grooves, so that the baffle is rotatably arranged in the third groove; the bottom surface of the baffle is close to the first magnet block; The first guide hole is a square hole structure; The outer wall of the plug block is covered with a silica gel sleeve, and the cross-sectional shape is matched with the shape of the first guide hole; the second magnet block and the third magnet block are arranged close to the top surface of the plug block.

8. The cover assembly of claim 4, wherein: The push piece is an electric push rod, and the diameter of the piston rod of the electric push rod is matched with the hole diameter of the first perforation and the second guide hole.

9. The cover assembly of claim 3, wherein: Two clamping columns are fixedly arranged on the groove wall of the first groove and are arranged in an array around the center circumference; The outer wall of the clamping block is correspondingly provided with a sliding groove, and the end bottom surface of the sliding groove is provided with a clamping hole extending to the bottom surface of the clamping block; A soft rubber pad is fixedly arranged on the end bottom surface of the sliding groove away from the clamping hole; The clamping column enters the sliding groove through the clamping hole, the water tank is rotated to move the clamping block to the position where the clamping column is located at the end of the sliding groove, and the clamping column is clamped at the end of the sliding groove through the soft rubber pad.

10. An electric rice cooker, comprising the cover assembly of any one of claims 1 to 9. ​

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