CN210870986U

CN210870986U - Automatic water injection device and electric rice cooker

Info

Publication number: CN210870986U
Application number: CN201920565236.8U
Authority: CN
Inventors: 吴访祥; 吴骏昊
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-23
Filing date: 2019-04-23
Publication date: 2020-06-30
Anticipated expiration: 2029-04-23

Abstract

The utility model provides an automatic water injection device and electric rice cooker, relates to kitchen utensils and appliances technical field, and it includes: the water storage container is provided with a water outlet; the opening and closing mechanism comprises a positioning guide cylinder, a valve post, an elastic locking piece, an unlocking piece and a valve opening elastic piece, wherein the positioning guide cylinder is provided with a water through hole communicated with the water outlet; the electromagnetism adsorption apparatus power-on produces suction and drives the unblocking piece and remove to make the unblocking piece separate with the locking district of location guide cylinder, make the valve post keep away from the delivery port under the effect of the elastic component that opens the valve, water is discharged the inner bag of electric rice cooker from water container, thereby realizes the separation of rice and water and the control of contact, above-mentioned device simple structure, and is small.

Description

Automatic water injection device and electric rice cooker

Technical Field

The utility model relates to a kitchen utensils and appliances field particularly, relates to an automatic water injection device and electric rice cooker.

Background

Along with the improvement of the living standard of people, the functions of the electric cooker are more and more. In order to meet the requirements of users, an electric rice cooker is available for cooking rice at regular time, that is, the rice cooker automatically performs the rice cooking operation at the time set by the user. During the use process of the electric cooker, a user needs to put rice and water into an inner container of the electric cooker before the water is extracted, then the cooking time is set, and the electric cooker can heat the inner container at the preset time so as to perform cooking operation.

Because the water and the rice are required to be put into the inner container in advance, the cooking operation can be finished in the preset time, and the phenomenon that the rice is soaked for too long time often occurs, so that the taste of the rice is influenced. Therefore, an improved electric cooker has appeared, which is provided with a support on the side, and a driving mechanism on the support, wherein the driving mechanism is connected with the rice storage basin and used for driving the rice storage basin to move up and down. In the using process, water is put into the inner container, rice is put into the rice storage basin, when the appointment time is not reached, the rice storage basin is positioned above the inner container, the rice is separated from the water, after the appointment time is reached, the driving mechanism drives the rice storage basin to move downwards, and the water enters the rice storage basin through the water inlet in the rice storage basin, so that the rice is contacted with the water, and the rice cooking operation is continued.

However, the electric cooker has a complex structure and occupies a large space, so that the electric cooker has heavier weight and larger volume.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic water injection device, it can place water and rice respectively, arrives reservation cooking time, with water injection rice, avoids rice soaking time overlength, and simple structure, small.

Another object of the utility model is to provide an electric rice cooker, it can place water and rice respectively, arrives reservation cooking time, with water injection rice, avoids rice soaking time overlength, and simple structure, small.

The embodiment of the utility model is realized like this:

an automatic water injection device comprising: a water storage container, an opening and closing mechanism and an electromagnetic adsorption mechanism,

the water storage container is provided with a water outlet;

the opening and closing mechanism comprises a positioning guide cylinder, a valve post, an elastic locking piece, an unlocking piece and a valve opening elastic piece, wherein the positioning guide cylinder is provided with a water passing hole communicated with the water outlet, the valve post is arranged in the positioning guide cylinder and can block the water passing hole, a locking area is arranged in the positioning guide cylinder, the valve post is connected with the elastic locking piece, the unlocking piece is used for driving the elastic locking piece to move so as to be separated from the locking area, and the valve opening elastic piece is used for driving the valve post to move towards the direction far away from the water outlet;

the electromagnetic adsorption mechanism is electrified to generate suction force to drive the unlocking piece to move, so that the unlocking piece is separated from the locking area of the positioning guide cylinder.

In a preferred embodiment of the present invention, the unlocking member further includes a pull rod and a pull cap, the pull cap is made of a magnetic material, the pull rod is connected to the pull cap, one end of the pull rod extends into the positioning guide cylinder, the bottom of the pull rod is provided with an inner hole, a side wall of the inner hole is provided with a through hole, and at least a part of the locking member extends into the inner hole and then extends out of the through hole.

In the preferred embodiment of the present invention, the positioning guide cylinder includes an upper vertical cylinder and a lower vertical cylinder, the upper vertical cylinder is buckled to the lower vertical cylinder, the upper vertical cylinder includes a first section and a second section, the inner diameter of the first section is smaller than the inner diameter of the second section, the first section is the locking area with the joint of the second section, and the second section is connected to the lower vertical cylinder.

In a preferred embodiment of the present invention, the elastic locking member is installed on the valve post through a connecting member, the elastic locking member includes a locking arm, one end of the locking arm is hinged to the connecting member, and the other end of the locking arm extends out of the through hole of the pull rod and abuts against the inner wall of the positioning guide cylinder.

The utility model discloses in the preferred embodiment, the quantity of locking arm is a plurality of, each the locking arm respectively with the connecting piece is articulated, the relative horizontal plane slope of locking arm sets up, be provided with on the pull rod a plurality of the through-hole, it is a plurality of the locking arm is with a plurality of the through-hole one-to-one, each the locking arm is followed respectively and is corresponded the through-hole stretches out.

In a preferred embodiment of the present invention, a limiting ring is disposed in the positioning guide cylinder, and the valve post passes through the limiting ring.

In a preferred embodiment of the present invention, the valve post is sleeved with a ring, and the valve post is sleeved with the valve opening elastic member and located between the ring and the limiting ring.

In the preferred embodiment of the present invention, one end of the pull rod extends out of the positioning guide cylinder and then is connected to the pull cap, and the pull rod is sleeved with an absorption-assisting elastic member, which is located between the pull cap and the top surface of the positioning guide cylinder.

In the preferred embodiment of the present invention, a rubber plug is sleeved on an end of the valve post close to the water outlet.

The utility model provides an electric cooker, its includes the pot body, pot cover and as above-mentioned technical scheme's automatic water injection device, the pot cover can cover fit the opening part of the pot body, automatic water injection device's electromagnetic adsorption mechanism install in the pot cover.

The embodiment of the utility model provides a beneficial effect is:

the application provides an automatic water injection device can be applied to electric rice cooker, and in the in-process of using, the one end shutoff of valve post is in water storage container's delivery port department, and at this moment, elasticity locking piece locking is in the locking district of location guide cylinder, and the valve-opening elastic component is in the power state of holding. The water storage container is filled with water, rice is placed in the inner container of the electric cooker, the water storage container is located above water in the inner container of the electric cooker, and the valve post is plugged at the water outlet, so that water in the water storage container cannot flow into the inner container, and the rice and the water are stored separately. When the rice cooker reaches the reserved cooking time, the electromagnetic adsorption mechanism generates magnetic force after being electrified, so that the unlocking piece moves, the unlocking piece is separated from the locking area of the positioning guide cylinder, so that the unlocking piece is unlocked, the valve opening elastic piece drives the valve post to move towards the direction far away from the water outlet after the unlocking piece is unlocked, so that the water outlet is opened, and water in the water storage container flows into the inner container through the water outlet, so that the water is in contact with rice in the inner container, and the follow-up cooking operation is performed.

The application provides an automatic water injection device simple structure, the volume is less relatively, adopts the electromagnetic drive mode to start, and response speed is fast, the power saving, easily installation.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of an automatic water injection device provided in an embodiment of the present invention in a closed state;

fig. 2 is a schematic structural view of the automatic water injection device provided by the embodiment of the present invention in an open state;

fig. 3 is an exploded view of the automatic water injection device according to the embodiment of the present invention;

FIG. 4 is a schematic structural view of an electric rice cooker with an automatic water injection device according to an embodiment of the present invention (the automatic water injection device is in a closed state);

FIG. 5 is a schematic structural view of an electric rice cooker with an automatic water injection device according to an embodiment of the present invention (the automatic water injection device is in an open state);

fig. 6 is a schematic structural view of a pull rod in the automatic water injection device according to an embodiment of the present invention;

FIG. 7 is a schematic structural view of an elastic locking member of an automatic water injection device according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a valve post in the automatic water injection device according to an embodiment of the present invention;

fig. 9 is a schematic structural view of a positioning guide cylinder in the automatic water injection device according to an embodiment of the present invention.

In the figure: 110-a water storage container; 111-a water outlet; 112-a steam outlet; 120-an electromagnetic adsorption mechanism; 130-positioning guide cylinder; 131-an upper vertical cylinder; 132-lower vertical cylinder; 133-a locking zone; 134-water through hole; 135-first section; 136-a second segment; 140-a resilient latch; 141-a locking arm; 142-a circular hole; 143-round pins; 144-a circular ring; 145-a stop collar; 151-pulling the cap; 152-a pull rod; 153-through holes; 154-a bump; 160-valve-opening elastic piece; 170-valve post; 171-a fitting; 172-linkage plugging part; 173-assembly holes; 174-rubber stopper; 180-an absorption-aid elastic member; 210-an inner container; 220-pot cover; 230-a control system; 240-housing.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the product of the present invention is usually placed when in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the automatic water injection device or element that is referred to must have a specific position, be constructed and operated in a specific position, and thus, should not be construed as limiting the present invention. Furthermore, the term "vertical" is not meant to require absolute relative perpendicularity, but may be somewhat inclined relative thereto.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

First embodiment

As shown in fig. 1 to 9, the present embodiment provides an automatic water injection apparatus, including: water storage container 110, opening and shutting mechanism and electromagnetic adsorption mechanism 120, wherein:

the water storage container 110 has a water outlet 111.

The opening and closing mechanism comprises a positioning guide cylinder 130, a valve column 170, an elastic locking piece 140, an unlocking piece and a valve opening elastic piece 160, wherein: the positioning guide cylinder 130 is provided with a water passing hole 134 communicated with the water outlet 111, the valve column 170 is arranged in the positioning guide cylinder 130, the valve column 170 can block the water passing hole 134, a locking area 133 is arranged in the positioning guide cylinder 130, the valve column 170 is connected with an elastic locking piece 140, the unlocking piece is used for driving the elastic locking piece 140 to move so as to be separated from the locking area 133, and the valve opening elastic piece 160 is used for driving the valve column 170 to move towards the direction away from the water outlet 111.

The electromagnetic adsorption mechanism 120 is powered on to generate a suction force to drive the unlocking member to move, so that the unlocking member is separated from the locking area of the positioning guide cylinder 130.

The automatic water filling mechanism provided in this embodiment can be applied to an electric rice cooker, as shown in fig. 4 and 5, the water storage container 110 of the automatic water filling mechanism can be placed in the inner container 210, and a certain distance exists between the outer side of the bottom surface of the water storage container 110 and the inner side of the bottom surface of the inner container 210, the electromagnetic adsorption mechanism 120 can be installed in a cooker cover 220 of the electric rice cooker, and after the cooker cover 220 is closed, the electromagnetic adsorption mechanism 120 is opposite to the opening and closing mechanism.

In a specific implementation manner of this embodiment, the water storage container includes a body, an outer edge extending outward is disposed on a top edge of the body, and the water storage container can be erected on the top of the inner container through the outer edge, so that the body is located in the inner container, and a certain distance exists between the bottom of the body and the bottom of the inner container.

As shown in fig. 3, the body of the water storage container 110 is provided with a partition surface, a sectional size (or an inner diameter) of an area above the partition surface is greater than a sectional size (or an inner diameter) of an area below the partition surface, the partition surface is provided with a steam outlet 112, and steam generated during cooking flows above the automatic water injection device through the steam outlet 112 and is discharged through the pot cover.

As shown in fig. 2, in a specific arrangement mode, the water outlet 111 is disposed in a middle area of the bottom surface of the water storage container 110, the positioning guide cylinder 130 is disposed at the water outlet 111, a connection portion of the positioning guide cylinder 130 and the water storage container 110 is located in a peripheral area of the water outlet, and a plurality of water through holes 134 are disposed in a bottom area of the positioning guide cylinder 130, so that water in the water storage container 110 can enter the positioning guide cylinder 130 through the water through holes 134 and can be discharged from the water outlet 111 enclosed inside the positioning guide cylinder 130. In addition, the axis of the positioning guide cylinder 130 is perpendicular to the bottom surface of the water storage container 110, and the moving direction of the unlocking member is the axial direction of the positioning guide cylinder 130.

As shown in fig. 1, in a preferred embodiment of the embodiment, the unlocking member includes a pull rod 152 and a pull cap 151, the pull cap 151 is made of magnetic material, the pull rod 152 is connected to the pull cap 151, one end of the pull rod 152 extends into the positioning guide cylinder 130, an inner hole is formed at the bottom of the pull rod 152, a through hole is formed in a side wall of the inner hole, and at least a part of the locking member extends into the inner hole and then extends out of the through hole.

The pull rod and the pull cap can be assembled in an interference fit mode or connected through threads.

As shown in fig. 1 and 6, the pull rod 152 is connected with the pull cap 151 by interference fit. Specifically, when the interference fit connection is adopted, a protrusion 154 is provided at the top of the pull rod 152, an inner hole is provided at the bottom of the pull cap 151, the protrusion 154 extends into the inner hole, and the protrusion 154 is in interference fit with the inner hole, so that the pull rod 152 is connected with the pull cap 151.

When the threaded connection is adopted, an external thread can be arranged on the convex block of the pull cap, an internal thread matched with the external thread of the convex block is arranged in the inner hole of the pull cap, and the convex block is screwed into the inner hole, so that the pull cap and the pull rod are fixed.

For convenience of installation, in the preferred embodiment of this embodiment, as shown in fig. 3 and 9, the positioning guide cylinder 130 includes an upper vertical cylinder 131 and a lower vertical cylinder 132, the upper vertical cylinder 131 is fastened to the lower vertical cylinder 132, the upper vertical cylinder 131 includes a first section 135 and a second section 136, an inner diameter of the first section 135 is smaller than an inner diameter of the second section 136, a joint of the first section 135 and the second section 136 is a locking region 133, and the second section 136 is connected to the lower vertical cylinder 132.

Go up and found a section of thick bamboo relatively fixed connection down, can be for dismantling the connection, also can be for not dismantling the connection, for example, go up and found a section of thick bamboo and found down between the section of thick bamboo can be through threaded connection, connect through buckle structure, connect through interference fit, still can be for bonding or welding. In the assembling process, the valve column, the pull rod, the elastic locking piece and other structures are assembled on the inner side of the lower vertical cylinder, then the top of the pull rod extends out of the upper vertical cylinder and then is assembled with the pull cap, finally the upper vertical cylinder is buckled on the lower vertical cylinder, and the upper vertical cylinder is connected with the lower vertical cylinder.

In the preferred embodiment of the present invention, the elastic locking member is installed on the valve post through a round pin, the elastic locking member includes a locking arm, one end of the locking arm is hinged to the connecting member, and the other end of the locking arm extends out of the through hole of the pull rod and abuts against the inner wall of the positioning guide cylinder.

In the present embodiment, the number of the locking arms may be one, two or more, and when the number of the locking arms is one or two, the connecting member may employ a round pin. For example, in one embodiment, the resilient locking member comprises a locking arm having one end hinged to the round pin and the other end extending through the through hole of the pull rod, the locking arm being disposed at an angle relative to the axis of the pull rod. When the elastic locking piece is in a locking state, one end of the locking arm extending out of the pull rod abuts against a locking area of the positioning guide cylinder. The pull rod moves in the direction far away from the water outlet under the pulling of the pull cap, so that the locking arm deflects, and the end, extending out of the pull rod, of the locking arm moves in the direction close to the pull rod, so that the locking arm is separated from the locking area. After the locking arm is separated from the locking area, the valve column is changed from the locking state to the unlocking state, and the valve column moves towards the direction far away from the water outlet under the pushing of the valve opening elastic part, so that the water outlet is opened.

Alternatively, as shown in fig. 9, in a preferred embodiment, the elastic locking member includes two locking arms 141, the two locking arms 141 are connected by a torsion spring, the two locking arms 141 are disposed in an inclined manner, as shown in fig. 6, the pull rod 152 is disposed with two through holes 153, and the two locking arms 141 can respectively extend from the two through holes 153. Specifically, two opposite ends of each locking arm 141 are respectively called as a head and a tail, a circular hole 142 is formed in the tail of each locking arm 141, a torsion spring is connected between the two locking arms 141, one end of each torsion spring is connected with an area, around the circular hole 142, of the tail of one locking arm 141, the other end of each torsion spring is connected with an area, around the circular hole 142, of the tail of the other locking arm 141, and a middle cavity of each torsion spring corresponds to the circular holes 142 in the two locking arms 141.

When the number of the locking arms is multiple, the connecting piece can comprise a round pin and a connecting ring, the connecting ring is fixed on the inner side of the valve column through the round pin, and a plurality of hinge positions are arranged on the connecting ring and used for being hinged with the locking arms. And each locking arm is respectively arranged at different hinged positions of the connecting ring. The number of the through holes arranged on the pull rod is the same as that of the hinge positions on the connecting ring, and the through holes are opposite to the hinge positions on the connecting ring. One end of the locking arm which is hinged on the hinge position of the connecting ring extends out of the through hole corresponding to the hinge position.

As shown in fig. 3 and 8, the valve post 170 is provided with two opposing fitting holes 173. Specifically, the valve column 170 includes an assembly portion 171 and a linkage blocking portion 172, the linkage blocking portion 172 is a column, the assembly portion 171 is installed at one end of the linkage blocking portion 172 away from the water outlet, the number of the assembly portions 171 is two, two assembly portions 171 are both installed at an edge area of an end portion of the linkage blocking portion 172, the two assembly portions 171 are arranged oppositely, the two assembly portions 171 are respectively provided with an assembly hole 173, and the two assembly holes 173 are opposite.

During assembly, a partial region of the elastic locking element is placed between the two assembly parts, such that the circular hole of the locking arm is opposite the assembly hole. The round pin penetrates through the round hole of one of the locking arms after passing through the assembly hole, the round pin penetrates through the torsion spring and then extends through the assembly hole of the other assembly part after extending through the round hole of the other locking arm, finally, the assembly part and the elastic locking piece are connected through the round pin, and the two ends of the round pin respectively extend out of the assembly holes of the two assembly parts (the outer side is arranged on one side, deviating from the elastic locking piece, of the assembly hole).

Specifically, the two assembling portions and the linkage plugging portion are of an integral structure and are integrally formed in the manufacturing process. For example, the process of providing the assembling portion and the linkage blocking portion on the valve post may be as follows: manufacturing a cylindrical structure, forming a hole penetrating through the cylindrical structure in the radial direction in the area close to one end of the cylindrical structure, then axially grooving the middle area of the end with the hole, wherein the length of the grooving is smaller than the axial length of the cylindrical structure, the grooving divides one end of the cylindrical structure into two parts, the two parts are two assembling parts, the originally formed hole is an assembling hole on the two assembling parts, and the area without the grooving is a linkage plugging part.

In the in-process of using, the through-hole that corresponds is stretched out respectively to two locking arms, and respectively under the effect of torsional spring the butt in the locking district of location guide cylinder, after the pull rod upwards removes, the inner wall and the locking arm contact of through-hole, and for the locking arm provides the power of rebound, two locking arms are swung to the direction that is close to the other side under the drive of through-hole inner wall, contained angle between two locking arms diminishes, the maximum distance between two locking arms reduces, finally, the maximum distance between two locking arms is less than the internal diameter of the first section of the last upright section of a section of thick bamboo of location guide cylinder, at this moment, locking arm and locking district separation, get into first section inboard, and the inner wall along first section moves up always, it is inboard to the top surface of first section to two locking arms butt respectively.

In an alternative embodiment of this embodiment, as shown in fig. 1 and 2, a stop collar 145 is disposed within the positioning guide cylinder 130, and the valve post 170 passes through the stop collar 145. Specifically, the retainer ring 145 and the lower vertical cylinder of the positioning guide cylinder 130 may be connected by interference fit, and the diameter of the inner hole of the retainer ring 145 is slightly larger than the outer diameter of the valve post 170, so that the valve post 170 may pass through the inner hole of the retainer ring 145 and may move axially relative to the retainer ring 145. In addition, the limiting ring 145 and the lower vertical cylinder of the positioning guide cylinder 130 can be installed in a matching manner in other manners, for example, an inward protruding table surface is arranged on the inner side wall of the lower vertical cylinder, after the limiting ring 145 is placed on the lower vertical cylinder, the limiting ring 145 moves downward under the action of gravity, and finally, the edge area of the bottom surface of the limiting ring 145 contacts with the protruding table surface on the inner side wall of the lower vertical cylinder. In this arrangement, the lower surface of the retainer ring 145 is retained by the projecting surface on the inner wall of the lower vertical cylinder, and the upper surface of the retainer ring 145 is retained by the valve-opening elastic member, so that the retainer ring 145 is fixed in the positioning guide cylinder 130.

Further, referring to fig. 1 and fig. 2, the valve post 170 is sleeved with the ring 144, and the valve opening elastic member 160 is sleeved on the valve post 170 and located between the ring 144 and the limiting ring 145. Specifically, the valve-opening elastic member 160 is a spring, which is sleeved on the valve post 170, and one end of the spring contacts with the circular ring 144, and the other end contacts with the limiting ring 145. The ring 144 is located below the round pin 143, the top surface of the ring 144 contacts with the round pin 143, the bottom surface contacts with the valve opening elastic member 160, and the valve opening elastic member 160 pushes the round pin 143 by pushing the ring 144, so as to drive the valve post 170 to move upward. The elastic locking member 140 drives the ring 144 and the valve post 170 to move downward via the round pin 143, thereby compressing the valve-opening elastic member 160, so that the valve-opening elastic member 160 is compressed and stores power.

In the preferred embodiment of the present invention, as shown in fig. 1 and fig. 2, one end of the pull rod 152 extends out of the positioning guide cylinder 130 and is connected to the pulling cap 151, the pull rod 152 is sleeved with the suction-assisting elastic member 180, and the suction-assisting elastic member 180 is located between the pulling cap 151 and the top surface of the positioning guide cylinder 130. With such an arrangement, when the pulling cap 151 is pushed downward (i.e. toward the direction close to the water outlet), the suction-assisting elastic member 180 is compressed, and when the pull rod 152 drives the elastic locking member 140 to move downward and lock the elastic locking member 140 in the locking area, the pulling cap 151 stops being pressed, and the pulling cap 151 moves upward for a certain distance under the elastic force of the suction-assisting elastic member 180, so that the distance between the pulling cap 151 and the electromagnetic adsorption mechanism 120 is closer.

Specifically, the top of drawing the cap is provided with the extension limit, and the edge of the bottom surface that extends the limit around drawing the cap is marginal a week, and the subregion of extension limit is located the outside of the top region of location guide cylinder, specifically, the top surface middle part of the last section of thick bamboo that founds of location guide cylinder is provided with the hole that runs through the top surface of the last section of thick bamboo in the axial to supply the pull rod to stretch out, and the external diameter of the first section of the last section of the section of thick bamboo that founds is less than the external diameter of the second section of the last section of the section of thick bamboo that founds, and the external. When the valve post is in a locking state, the inner side of the bottom edge area of the extending edge surrounds the outer side of the top of the upper vertical cylinder. So set up, go up and found a section of thick bamboo and play radial limiting displacement to drawing the cap for draw the cap more stable along axial displacement in-process.

In order to increase the sealing effect, as shown in fig. 1-3, a rubber stopper 174 is sleeved on one end of the valve post 170 close to the water outlet 111. The rubber stopper 174 has an outer diameter slightly larger than the inner diameter of the water outlet 111 of the water storage container 110. As shown in fig. 1, when the rubber stopper 174 is inserted into the water outlet 111, the rubber stopper 174 is deformed to completely block the water outlet 111.

Further, the rubber buffer is located the inboard one end of location guide cylinder and is provided with the turn-ups of outside upset, so set up, when with the rubber buffer shutoff in water outlet department, the subregion of rubber buffer stretches into in the delivery port, the turn-ups of rubber buffer and the water storage container bottom surface in be located the peripheral subregion contact of delivery port.

Second embodiment

As shown in fig. 4 and 5, the present embodiment provides an electric rice cooker, which includes a cooker body, a cooker cover 220 and the automatic water injection device provided in the first embodiment, wherein the cooker cover 220 can cover an opening of the cooker body, and an electromagnetic absorption mechanism 120 of the automatic water injection device is installed on the cooker cover.

Further, the pot body comprises a shell 240, the inner container 210 is placed in the shell 240, a heating element is arranged between the inner container 210 and the shell 240, a control system 230 is arranged in the shell 240, the control system 230 is connected with the heating element, the control system 230 is the same as a control system used by an electric rice cooker with a scheduled cooking function in the prior art, and is used for recording scheduled cooking time input by a user and starting the electric rice cooker at the scheduled cooking time so that the heating element heats the inner container 210. The electromagnetic adsorption mechanism 120 is installed in the cover 220 of the electric cooker, and the electromagnetic adsorption mechanism 120 is connected with the control system 230 through a wire, when the preset cooking time is reached, the control system 230 energizes the electromagnetic adsorption mechanism 120, so that the electromagnetic adsorption mechanism 120 generates attraction force to the pull cap. Specifically, when the pot cover 220 covers the pot body, the electromagnetic absorption mechanism 120 is located right above the positioning guide cylinder 130, that is, the electromagnetic absorption mechanism 120 is located right above the pull cap.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic water injection device, comprising: a water storage container, an opening and closing mechanism and an electromagnetic adsorption mechanism,

the water storage container is provided with a water outlet;

2. The automatic water injection device according to claim 1, wherein the unlocking member comprises a pull rod and a pull cap, the pull cap is made of magnetic material, the pull rod is connected with the pull cap, one end of the pull rod extends into the positioning guide cylinder, an inner hole is formed in the bottom of the pull rod, a through hole is formed in the side wall of the inner hole, and at least part of the locking member extends into the inner hole and then extends out of the through hole.

3. The automatic water injection device according to claim 1, wherein the positioning guide cylinder comprises an upper vertical cylinder and a lower vertical cylinder, the upper vertical cylinder is buckled on the lower vertical cylinder, the upper vertical cylinder comprises a first section and a second section, the inner diameter of the first section is smaller than that of the second section, the joint of the first section and the second section is the locking area, and the second section is connected with the lower vertical cylinder.

4. The automatic water injection device according to claim 2, wherein the elastic locking member is mounted to the valve post through a connecting member, the elastic locking member includes a locking arm, one end of the locking arm is hinged to the connecting member, and the other end of the locking arm extends out of the through hole of the pull rod and abuts against the inner wall of the positioning guide cylinder.

5. The automatic water injection device according to claim 4, wherein the number of the locking arms is plural, each locking arm is hinged to the connecting member, the locking arms are inclined relative to a horizontal plane, the pull rod is provided with a plurality of through holes, the locking arms correspond to the through holes one by one, and each locking arm extends out of the corresponding through hole.

6. The automatic water injection device according to claim 2, wherein a stop ring is disposed within the positioning guide cylinder, and the valve post passes through the stop ring.

7. The automatic water filling device as claimed in claim 6, wherein a ring is sleeved on the valve post, and the valve opening elastic member is sleeved on the valve post and located between the ring and the limiting ring.

8. The automatic water injection device according to claim 2, wherein one end of the pull rod extends out of the positioning guide cylinder and then is connected with the pull cap, and an absorption-assisting elastic member is sleeved on the pull rod and positioned between the pull cap and the top surface of the positioning guide cylinder.

9. The automatic water filling device according to claim 2, wherein a rubber plug is sleeved on an end of the valve post close to the water outlet.

10. An electric cooker, characterized in that, it comprises a cooker body, a cooker cover and the automatic water injection device as any claim 1-9, the cooker cover can cover the opening of the cooker body, the electromagnetic adsorption mechanism of the automatic water injection device is installed on the cooker cover.