TWI722021B - Top-mounted stirring and cooking machine - Google Patents

Abstract

The present invention relates to a top-mounted stirring and cooking machine, which includes an upper cover and a body. An inner container for holding food and auxiliary materials is placed in the body. The upper cover is used to buckle on the body, and the upper cover is provided with a drive motor and A stir-frying device for extending into the inner container, the drive motor is connected with a drive shaft, the drive shaft is used to drive the stir-frying device to rotate, the stir-frying device includes a stirring blade, and the stirring blade is provided with a connecting part connected to the driving shaft , The drive shaft is detachably connected with the connecting part. In this way, it is convenient for the user to disassemble and clean the stir-frying device, and after it is disassembled, the multi-function of the cooking machine can be realized.

Description

Top-mounted stirring and cooking machine

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on October 12, 2015, the application number is 201520785376.8 , and the invention title is " An easy-to-use cooking machine ", the entire content of which is incorporated into this application by reference.

The invention relates to the field of kitchen cooking appliances, in particular to a top-mounted stirring and cooking machine.

The cooking machine is a kind of intelligent equipment that can automate the cooking process. Compared with traditional cooking pots, the cooking machine has the functions of automatic heating oil, automatic stir-frying, and automatic control of heat, so it is loved by the majority of consumers. In order to realize the automatic stir-frying function, the cooking machine usually has a stirring device in the pot, and a motor and an output shaft driven by the motor are set on the pot cover. The stirring device has a stirring shaft, and the output shaft is connected with the stirring shaft. The motor drives the stirring through the output shaft. The device rotates to achieve the purpose of stirring the ingredients in the pot to make it evenly seasoned and evenly heated. In the prior art, the output shaft and the stirring shaft adopt the coordination of the hexagonal shaft and the inner hexagonal hole or the coordination of the D-shaped shaft and the D-shaped hole to realize the detachable connection while transmitting torque, and the output shaft and the mixing shaft pass through after being plugged in. The elastic steel ball or the position element of the stirring shaft is positioned in the structure. This connection and positioning method has the problems of complex structure and inconvenient disassembly and assembly.

In addition, in the field of agitators, there has been a structure of magnetic transmission to achieve agitation. The principle is to use magnetic attraction to achieve a split transmission structure. This structure is suitable for the stirring of milkshakes or some liquids. Mixing and frothing, the load for stir-frying is relatively large, and this structure cannot be used.

The invention provides a top-mounted stirring and cooking machine which is convenient to disassemble and can rotate reliably.

In order to solve the above technical problems, the present invention adopts the following technical solutions:

A top-mounted stirring and cooking machine, comprising an upper cover and a body, an inner container for holding food and auxiliary materials is placed in the body, the upper cover is used to buckle on the body, and the upper cover is provided with a driving motor and a body for extending The stir-frying device inserted into the inner container, the drive motor is connected with a drive shaft, the drive shaft is used to drive the stir-frying device to rotate, the stir-frying device includes a stirring blade, the stirring blade is provided with a connecting part connected to the drive shaft, and the drive shaft It can be detachably connected with the connecting part.

The stirring shaft is provided with a blind mounting hole, the drive shaft is provided with a mounting part matching the blind mounting hole, a permanent magnet block is embedded in the blind mounting hole, the mounting part is inserted into the blind mounting hole, and the permanent magnet block is adsorbed and connected to the mounting part. The area of the permanent magnet block facing the mounting part is 0.5 square centimeters to 4 square centimeters.

The installation blind hole includes a bottom wall and a side wall, the permanent magnet block is fixed against the top bottom wall, and the side wall is provided with a circumferential limit element structure matching the mounting part; the circumferential limit element structure is a protrusion provided on the side wall Or grooves, or, the cross-section of the blind mounting hole is pentagonal or hexagonal, and the corners of the pentagonal or hexagonal form the circumferential limit element structure.

The side wall includes a first side wall that limits the permanent magnet block, and a second side wall that limits the mounting portion, and the height of the second side wall is 0.5 cm to 2 cm.

The thickness of the permanent magnet block is 0.5 cm to 2 cm, and the side wall is in interference fit with the permanent magnet block; or, the side wall is provided with a circlip or protrusion for positioning the permanent magnet block.

The hole enclosed by the second side wall is larger than the hole enclosed by the first side wall.

The stirring shaft includes an end provided with a blind hole for installation and a bottom connected to the stirring blade. The cross-sectional area of the bottom is smaller than the end, and the connecting surface between the bottom and the end is a tapered inclined surface or a tapered arc surface. (Increase anti-oil stain)

The upper cover includes a detachable cover and a fixed cover. The fixed cover is provided with a first through hole for the drive shaft to pass through. The detachable cover is provided with a second through hole corresponding to the first through hole. The shaft is matched with the first sealing ring, the second through hole is provided with a second sealing ring, and the side of the second sealing ring away from the inner liner is provided with a lip. The lip is located on the outer periphery of the first sealing ring or outside the first sealing ring. Partially overlap along.

The outer periphery of the detachable cover is provided with a third sealing ring, the third sealing ring seals the inner container, and the lip of the third sealing ring and the second sealing ring form an oil-proof seal of the fixed cover.

The side of the fixed cover facing the inner liner is provided with a sink groove surrounding the first through hole, the first sealing ring is located in the sink groove, and the lip abuts against the outer circumference of the sink groove or is located in the sink groove.

The driving shaft and the stirring shaft are connected by a connecting shaft sleeve, and the connecting shaft sleeve is provided with a floating elastic member and a permanent magnet block. Both the driving shaft and the stirring shaft are provided with a mounting part connecting the connecting shaft sleeve, and the permanent magnet block is adsorbed therein. One mounting part and the other mounting part are connected with the coupling sleeve, and the permanent magnet block floats up and down against the floating elastic element, or the installation part connected with the coupling sleeve floats up and down against the floating elastic element.

A floating elastic member is also arranged in the blind installation hole, and the permanent magnet block floats up and down against the floating elastic member.

The beneficial effects of the present invention are:

The top-mounted stirring and cooking machine of the present invention includes an upper cover, a body, an inner container for holding food and auxiliary materials is placed in the body, the upper cover is used to buckle on the body, the upper cover is provided with a drive motor and The stir-frying device used to extend into the inner pot, the drive motor is connected with the drive The drive shaft is used to drive the stir-frying device to rotate. The stir-frying device includes a stirring blade. During operation, the stirring blade is located in the inner container. The stirring blade is provided with a connecting part connected to the driving shaft, and the driving shaft and the connecting part Removable connection. In this way, it is convenient for the user to disassemble and clean the stir-frying device, and after it is disassembled, the multi-function of the cooking machine can be realized.

Further, the connecting part is a stirring shaft, the stirring shaft is provided with a blind installation hole, the drive shaft is provided with a mounting part that matches the blind mounting hole, the blind mounting hole is embedded with a permanent magnet block, and the mounting part is inserted into the blind mounting hole , The permanent magnet block is adsorbed and connected to the mounting part, and the area of the permanent magnet block facing the mounting part is 0.5 square centimeters to 4 square centimeters. In this way, the permanent magnet block is fixed in the installation blind hole, which can effectively protect the permanent magnet block, avoid the probability of disassembly or collision damage, and increase the service life. And the installation of blind holes can ensure the driving force and the reliable load output of the cooking machine. The area of the permanent magnet block facing the mounting part is 0.5 square centimeters to 4 square centimeters, so as to ensure the suction force of the permanent magnet block to the mounting part and avoid excessive suction force and difficulty in dismounting. And it can avoid that the blind hole is too large, which will affect the appearance. Of course, the attractive force of the permanent magnet block is also related to its magnetic flux. The specific magnetic flux range matches the disassembly feel. Those skilled in the art can obtain the magnetic flux range or specific value through experiments based on the above-mentioned area range.

Further, the installation blind hole includes a bottom wall and a side wall, the permanent magnet block is fixed against the top bottom wall, and the side wall is provided with a circumferential limit element structure matching the installation part. In this way, the circumferential rotation of the two can be avoided, the wear of the permanent magnet block and the mounting part can be avoided, and the pull-in effect can be ensured.

Further, the blind mounting hole includes a first side wall that limits the permanent magnet block, and a second side wall that limits the installation portion, and the height of the second side wall is 0.5 cm to 2 cm. If the height of the second side wall is higher than 2cm, it is not easy to clean if there is dirt in the blind installation hole; if the height of the second side wall is lower than 0.5cm, in order to ensure its strength, the wall thickness needs to be increased, resulting in an unsightly appearance of the shaft. Further, the second side of the present invention The height of the wall is preferably 0.8 cm, 1 cm or 1.5 cm.

Further, the thickness of the permanent magnet block is 0.5 cm to 2 cm, and the first side wall is in interference fit with the permanent magnet block; or, the first side wall is provided with a snap spring or protrusion for positioning the permanent magnet block. In this way, when disassembling, it can avoid the danger that the permanent magnet block is pulled out or broken by the suction force, and it can also avoid the disadvantages that the thickness of the blind hole is too long and the stain is not easy to clean.

Further, the blind installation hole is provided at the end of the stirring shaft, and the installation part is provided at the end of the drive shaft. In this way, the permanent magnet block is arranged on the stirring shaft, and the material of the stirring shaft can be selected from non-magnetic materials to reduce manufacturing costs. The drive shaft is mostly integrated with the drive motor, which is a magnetic metal shaft that can be directly adsorbed by the permanent magnet block. The structure is simple, and it is convenient to manufacture.

Further, the upper cover is further provided with a motor, the drive shaft is a motor shaft or is connected with the motor shaft, and the rotation speed of the drive shaft is 30r/min-180r/min. The rotation speed is within the above range, which can ensure the cooking effect while avoiding the danger of the permanent magnet block falling off due to the excessively fast rotation speed and the excessive load at the initial stage of cooking, resulting in insufficient adsorption force of the permanent magnet block.

Further, there is a heat insulation gap between the permanent magnet block and the end of the stirring shaft. In this way, it is avoided that the temperature of the stirring shaft is too high during cooking, which affects the service life of the permanent magnet block.

Further, the hole enclosed by the second side wall is larger than the hole enclosed by the first side wall. To facilitate the installation of the permanent magnet block.

Further, the limit element structure is a protrusion or groove provided on the side wall, or the cross section of the blind installation hole is a pentagon or hexagon, and the corners of the pentagon or hexagon form the limit element structure. The limit element has a simple structure, is easy to demold during production, has low cost and does not have a small effect on the appearance.

Further, the stirring shaft includes an end provided with a blind hole for installation and a connecting stirring At the bottom of the leaf, the cross-sectional area of the bottom is smaller than the end, and the connecting surface between the bottom and the end is a tapered inclined surface or a tapered arc surface. In this way, it can be conveniently held by human hands during disassembly, and disassembly is more convenient.

Further, the upper cover includes a detachable cover and a fixed cover. The fixed cover is provided with a first through hole for the drive shaft to pass through. The detachable cover is provided with a second through hole corresponding to the first through hole, and the first through hole is tightly closed. The first sealing ring is inherently matched with the drive shaft, the second through hole is provided with a second sealing ring, and the side of the second sealing ring away from the inner liner is provided with a lip. The lip is located on the outer circumference of the first sealing ring or is sealed with the first The outer edges of the circles partially overlap. In this way, a double sealing structure is formed around the first through hole, which not only prevents oil and water vapor from entering the upper cover, but also prevents oil and water from polluting the fixed cover, which is convenient for users to clean.

Further, a third sealing ring is provided on the outer periphery of the detachable cover, the third sealing ring seals the inner container, and the lip of the third sealing ring and the second sealing ring form an oil-proof seal of the fixed cover. In this way, the area that the user needs to clean is smaller and more convenient.

Furthermore, the side of the fixed cover facing the inner liner is provided with a sink groove surrounding the first through hole, the first sealing ring is located in the sink groove, and the lip abuts against the outer periphery of the sink groove or is located in the sink groove. The area to be cleaned is limited to the range of the sink, which is more convenient and faster.

In addition, the drive shaft and the stirring shaft are connected by a connecting shaft sleeve. The connecting shaft sleeve is provided with a floating elastic member and a permanent magnet block. Both the drive shaft and the stirring shaft are provided with a mounting part connecting the connecting shaft sleeve. The magnetic block absorbs one of the mounting parts, and the other mounting part is connected with the coupling sleeve. The permanent magnet block floats up and down against the floating elastic element, or the mounting part connected with the coupling sleeve floats up and down against the floating elastic element. In this way, at the beginning of cooking, there is more food in the inner pot, so that the mixing shaft has a space for relative movement, avoiding interference and causing the problem of not being able to close the lid.

1‧‧‧Top cover

11‧‧‧Removable cover

111‧‧‧Second through hole

112‧‧‧Second sealing ring

113‧‧‧Lip

114‧‧‧Third sealing ring

12‧‧‧Fixed cover

121‧‧‧First through hole

122‧‧‧First sealing ring

123‧‧‧Sink

21‧‧‧Stirring leaf

22‧‧‧Drive shaft

23‧‧‧Mixing shaft

24‧‧‧Installation blind hole

241‧‧‧First side wall

242‧‧‧Second side wall

25‧‧‧Installation Department

26‧‧‧Permanent magnet block

27‧‧‧Protrusion

3‧‧‧Drive motor

4‧‧‧Coupling sleeve

41‧‧‧Floating elastic piece

The present invention will be further explained below in conjunction with the drawings: Fig. 1 is an exploded schematic diagram of the upper cover and the stir-frying device in the first embodiment of the present invention; Fig. 2 is an assembly cross-sectional view of the upper cover and the stir-frying device in the first embodiment of the present invention; Fig. 3 is a partial enlarged view of AA in Fig. 2; Fig. 4 is Fig. 2 is a schematic diagram of the structure of the stirring shaft; Fig. 5 is a schematic diagram of the structure of the stirring shaft of the second embodiment of the present invention; Fig. 6 is an exploded schematic view of the upper cover and the stir-frying device of the third embodiment of the present invention; Fig. 7 is the fourth embodiment of the present invention A schematic diagram of the explosion of the stir-frying device; FIG. 8 is a schematic diagram of a cross-sectional view of the stirring shaft in Embodiment 5 of the present invention.

The technical solutions of the embodiments of the present invention will be explained and described below in conjunction with the accompanying drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all of them. Based on the examples in the implementation manners, other examples obtained by those skilled in the art without creative work shall fall within the protection scope of the present invention.

Referring to Figures 1-3, a top-mounted stirring and cooking machine in the first embodiment of the present invention includes an upper cover 1, a body (not shown in the figure), and an inner container (not shown in the figure) for holding food and auxiliary materials is placed in the body. Wherein, the upper cover is buckled on the body, the upper cover is provided with a drive motor 3 and a stir-frying device for extending into the inner pot, the drive motor is connected with a drive shaft 22, and the drive shaft 22 is used to drive the stir-frying device to rotate The stir-frying device includes a stirring blade 21. During operation, the stirring blade 21 is located in the inner container. The stirring blade 21 is provided with a connecting part connected to the driving shaft 22, and the driving shaft 22 is detachably connected to the connecting part. The connecting part described in this embodiment is the stirring shaft 23. In this way, it can be convenient for users to clean, Moreover, after the stirring shaft 23 is disassembled, the cooking machine of the present invention can also be used as other cooking appliances to achieve multi-functions.

As an improvement, the stirring shaft 23 is provided with a blind mounting hole 24, the drive shaft 22 is provided with a mounting portion 25 that matches the blind mounting hole 24, the blind mounting hole 24 is embedded with a permanent magnet block 26, and the mounting portion 25 is inserted into the blind mounting hole. In the hole 24, the permanent magnet block 26 is attached to the mounting portion 25 by suction, and the area of the permanent magnet block 26 facing the mounting portion 25 is 0.5 square centimeters to 4 square centimeters. The permanent magnet block 26 is fixed by the installation blind hole 24, which can better protect the permanent magnet block 26 and avoid damage during the disassembly process. Furthermore, the mounting portion 25 is inserted into the blind mounting hole 24 and is connected by the permanent magnet block 26 to provide a reliable axial suction force, facilitate disassembly, and ensure the concentricity of the stirring shaft 23 and the driving shaft 22.

In this embodiment, the area of the permanent magnet block 26 facing the mounting portion 25 is 0.5 square centimeters to 4 square centimeters. In this way, it is possible to provide sufficient suction force to absorb the mounting portion 25, and to avoid the mounting blind hole 24 from being too large, which affects the overall appearance. If the area is less than 0.5 square centimeters, in order to ensure the adsorption force, a larger magnetic flux is required, which in turn leads to an increase in the cost of the magnet block. The permanent magnet block 26 is small as a whole, and the installation and operation are inconvenient. If the area is larger than 4 square centimeters, the diameter of the blind installation hole 24 will be larger, which will result in a large diameter of the stirring shaft 23, resulting in a decrease in aesthetics, and the blind installation hole 24 will easily enter stains due to its large diameter, which will affect the cooking effect. Most preferably, the utility model can adopt 0.5, 0.8, 1.0, 1.2, 1.5, 2.0, 2.4, 3.0, 3.6, 4 square centimeters. Of course, considering the stiffness of the stirring shaft 23, the best 1.0 is selected in this embodiment. Square centimeters.

In this embodiment, the blind installation hole 24 includes a bottom wall and a side wall, the permanent magnet block 26 is fixed against the bottom wall, and the side wall is provided with a circumferential limit element structure matching the mounting portion 25. The circumferential limit element structure is a protrusion 27 provided on the side wall, and the mounting portion 25 is provided with a groove matching the protrusion 27 to avoid relative rotation or shaking of the stirring shaft 23 and the drive shaft 22 during the cooking process. For permanent magnet block 26 Of wear.

4, in this embodiment, the blind mounting hole 24 includes a first side wall 241 that limits the permanent magnet block 26, and a second side wall 242 that limits the mounting portion 25, and the height of the second side wall 242 is 0.5cm to 2cm. If the height of the second side wall 242 is less than 0.5 cm, the strength of the connection between the stirring shaft 23 and the driving shaft 22 will not be high, and the risk of falling off or breakage may occur during cooking. If the height is greater than 2 cm, the installation blind hole 24 is too deep, and foreign matter entering is not easy to clean, and there is a risk of contamination. Preferably, 0.8 cm, 1.0 cm, 1.5 cm or 2 cm can be used in this embodiment. The best is 1.5cm.

Further, the thickness of the permanent magnet block 26 is 0.5 cm to 2 cm, and the first side wall 241 is provided with a circlip for positioning the permanent magnet block 26. The permanent magnet block 26 is positioned by the circlip to avoid the risk of the permanent magnet block 26 being pulled out during disassembly. The thickness of the permanent magnet block 26 is set to 0.5 cm to 2 cm, which not only facilitates production and installation, but also has appropriate strength, and has a high yield during installation. In addition, in this range, too deep installation blind holes 24 can be avoided, which may cause difficulty in cleaning. Preferably, 0.5 cm, 0.8 cm, 1.0 cm, 1.2 cm, 1.5 cm, 1.8 cm or 2 cm can be used in this embodiment. The best is 1.2cm.

In this embodiment, the upper cover 1 is further provided with a motor 3, the drive shaft 22 is a motor shaft or is connected to the motor shaft, and the rotation speed of the drive shaft 22 is 30 r/min-180 r/min. The cooking effect in this speed range is good, and the crushing damage to the vegetable is small. In addition, the torsion force on the connection between the drive shaft 22 and the stirring shaft 23 is small, which further improves safety. In this embodiment, the rotational speed of the drive shaft 22 can be 45, 50, 60, 70, 80, 90, 110, 120, 130, 140, 150, 160, 180r/min, as long as it is between 30r/min-180r/min. Within the range of min. The best is 80 to 150r/min.

In addition, as an improvement, there is a thermal insulation gap between the permanent magnet block 26 and the bottom of the blind installation hole 24. In this way, during the cooking process, the stirring shaft 23 heats up, and the heat is prevented from being transferred to the permanent magnet block 26 through the heat insulation gap, thereby increasing the life of the permanent magnet block 26.

In this embodiment, the stirring shaft 23 includes an end portion for installing blind holes 24 and a bottom portion for connecting the stirring blade 21. The cross-sectional area of the bottom portion is smaller than the end portion, and the connecting surface between the bottom surface and the end portion is a cone. Shaped inclined surface or conical arc surface. In this way, through this structural design, a guiding effect on the surface of the stirring shaft 23 can be formed, oil and water vapor can be prevented from rising, the pressure of the sealing element can be reduced, and the disassembly can be conveniently held by human hands and is more beautiful.

Furthermore, in order to facilitate the installation of the permanent magnet block 26, in this embodiment, the hole enclosed by the second side wall 242 is larger than the hole enclosed by the first side wall 241. In this way, the permanent magnet block 26 can be easily sinked into the bottom of the blind installation hole 24 for fixing.

It can be understood that the first side wall 241 may also be an interference fit with the permanent magnet block 26 or be provided with protrusions to limit the position of the permanent magnet block 26.

It can be understood that the circumferential limit element structure is a groove provided on the side wall, and the mounting portion is provided with protrusions matching the groove to realize circumferential limit.

It can be understood that the blind installation hole 24 can also be provided on the drive shaft 22, and the corresponding installation portion 25 is provided on the stirring shaft 23.

It can be understood that the connecting portion may also be a handle or a ring arranged in the middle of the stirring blade 21 for connecting the stirring blade 21.

The present invention adopts the permanent magnet block 26 to adsorb the installation part 25, which facilitates the user's disassembly and cleaning, and improves the user experience. In addition, the structural design of the installation blind hole 24 ensures the reliability of the permanent magnet block 26 and improves the service life.

Embodiment two:

5, the second embodiment of the present invention is different from the first embodiment in that: the section of the blind mounting hole 24 is a hexagon, and the corners of the hexagon form the circumferential limit element junction Structure. Correspondingly, the mounting portion 25 is also provided in a hexagonal structure. In this embodiment, through the hexagonal blind mounting hole 24, the circumferential positioning of the mounting portion 25 can be realized more conveniently, the shape is regular, and the alignment element is not required for installation, which is more convenient.

It can be understood that the cross-section of the blind mounting hole 24 may also be pentagonal or square, and a simple change of this shape is also within the protection scope of the present invention.

Example three:

Please refer to FIG. 6, as shown in the third embodiment of the present invention. The upper cover 1 includes a detachable cover 11 and a fixed cover 12. The fixed cover 12 is provided with a first through hole 121 for the drive shaft 22 to pass through. The detachable cover 11 Corresponding to the first through hole 121 is provided with a second through hole 111, the first through hole 121 is fastened with a first sealing ring 122 that cooperates with the drive shaft 22, and the second through hole 111 is provided with a second sealing ring 112. The side of the ring 112 away from the inner liner is provided with a lip 113, and the lip 113 is located on the outer periphery of the first sealing ring 122. In this embodiment, the fixed cover 12 is used so that the drive shaft 22 has a supporting structure. In addition, the driving shaft 22 passes through the first through hole 121 and is detachably connected to the stirring shaft 23. The first sealing ring 122 prevents cooking fume or water from entering the inside of the fixed cover 12, and avoids short-circuiting of electrical components inside the fixed cover 12 or difficulty in cleaning oil stains.

Further, in this embodiment, the side of the fixed cover 12 facing the inner liner is provided with a sink groove 123 surrounding the first through hole, the first sealing ring 122 is located in the sink groove 123, and the lip 113 is against the top sink. The outer circumference of the groove 123. The first through hole 121 and the first sealing ring 122 are confined by the sink groove 123, and the lip 113 presses against the outer periphery of the sink groove 123, so that a double seal is formed in the range of the sink groove 123, and the first sealing ring 122 The drive shaft 22 is sealed with the first through hole 121, and the second sealing ring 112 seals the second through hole 111 to ensure the sealing effect. In addition, the wall of the sink groove 123 is a circular arc or a smooth arc to achieve the guiding effect of water or oil. In addition, the area of the second through hole 111 is not less than the area of the sink 123 to facilitate the disassembly of the stirring shaft.

Furthermore, in this embodiment, the outer periphery of the detachable cover 11 is provided with a third sealing ring 114, the third sealing ring 114 seals the inner liner, and the third sealing ring 114 and the lip 113 of the second sealing ring 112 form a fixed cover 12's oil-proof seal. In this way, during the cooking process, the area where the water and oil vapor in the inner pot may contact is limited within a small range defined by the sink 123 and the second sealing ring 112, and it is very convenient for the user to remove the detachable cover 11 for cleaning.

The assembly sequence of the upper cover of the top-mounted stirring and cooking machine of the present invention is as follows: First, the first sealing ring 122 is fastened in the first through hole 121, and the drive shaft 22 passes through the first through hole 121 and the first sealing ring. 122; Then, the detachable cover 11 with the second sealing ring 112 and the third sealing ring 114 is fixed on the fixed cover 12, the drive shaft 22 passes through the second through hole 111 and the second sealing ring 112, the second sealing The lip 113 of the ring 112 abuts against the outer circumference of the first sealing ring 122 to achieve sealing. In this embodiment, the fixing method of the detachable cover 11 and the fixed cover 12 can be achieved by clamping or through mature technologies such as detachable nuts.

It can be understood that the lip 113 of the second sealing ring 112 may also partially overlap the outer edge of the first sealing ring 122.

It can be understood that the lip 113 of the second sealing ring 112 may also be located in the sink groove 123.

It can be understood that the detachable cover 11 in this embodiment is a detachable metal inner cover or a glass cover.

It can be understood that the fixed cover 12 in this embodiment may cover the entire cover on the detachable cover 11, or may be a partial cover on the detachable cover 11 or a handle-shaped cover.

In the top-mounted stirring and cooking machine of the present invention, when the user needs to clean after cooking, the stirring shaft 23 and the detachable cover 11 are disassembled and cleaned, and the fixed cover 12 is detachably covered. The sealing structure on the 11 is sealed and does not need to be cleaned, which is convenient and simple for users to clean.

Embodiment four:

Please refer to FIG. 7 as shown in the fourth embodiment of the present invention. The drive shaft 22 and the stirring shaft 23 are connected by a coupling sleeve 4, and the coupling sleeve 4 is provided with a floating elastic member 41 and a permanent magnet block 26 for driving Both the shaft 22 and the stirring shaft 23 are provided with mounting parts connected to the connecting shaft sleeve 4. The permanent magnet block 26 absorbs one of the mounting parts, and the other mounting part is connected with the connecting shaft sleeve 3, and the permanent magnet block 26 abuts the floating elastic member 41 or more. Float down. The mounting portion of the drive shaft 22 may be its end facing the coupling sleeve 4, and the mounting portion of the stirring shaft 22 may also be its end facing the coupling sleeve 4. In this way, through the floating action of the floating elastic member 41, the permanent magnet block 26 and its adsorbed mounting part are driven to float up and down with respect to the coupling sleeve 4, so as to achieve the up and down floating of the relative position of the stirring shaft 23. In this way, at the beginning of cooking, there is a lot of food in the inner pot, so that the mixing shaft 23 has a space for relative movement, so as to avoid interference and cause the problem of not being able to close the lid.

It can be understood that the floating elastic member can also be pressed against the mounting part connected with the connecting shaft sleeve, as long as the stirring shaft can be floated up and down.

It can be understood that the floating elastic member can be any element that can achieve elasticity and resetting, such as a spring or a silicon rubber pad.

The invention adopts the connecting shaft sleeve 4 to realize convenience and detachment, and at the same time, the elastic floating structure is used to ensure the problem that the cover cannot be closed during cooking, and is safer and more reliable.

Embodiment five:

Please refer to FIG. 8, in the fifth embodiment of the present invention, a floating elastic member 41 is further provided in the blind mounting hole 24, and the permanent magnet block 26 floats up and down against the floating elastic member 41.

The floating elastic member 41 is fixedly arranged between the permanent magnet block 26 and the bottom wall of the blind mounting hole 24. In this way, since the permanent magnet block 26 adsorbs the mounting part, the mounting part is a fixed structure, and the Now the stirring shaft 23 floats up and down relative to the permanent magnet block 26 and the drive shaft 22.

The beneficial effects of this embodiment are the same as those of the fourth embodiment, and will not be repeated here.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but is not limited to the drawings and the description in the above specific embodiments. content. Any modification that does not deviate from the functional and structural principles of the present invention will be included in the scope of the patent application.

1‧‧‧Top cover

3‧‧‧Drive motor

21‧‧‧Stirring leaf

22‧‧‧Drive shaft

23‧‧‧Mixing shaft

26‧‧‧Permanent magnet block

Claims (12)

A top-mounted stirring and cooking machine, comprising an upper cover and a body, an inner container for holding food and auxiliary materials is placed in the body, the upper cover is used to buckle on the body, and the upper cover is provided with a driving motor and a body for extending The stir-frying device inserted into the inner container, the drive motor is connected with a drive shaft, the drive shaft is used to drive the stir-frying device to rotate, the stir-frying device includes a stirring blade, the stirring blade is provided with a connecting part connected to the drive shaft, and the drive shaft It is detachably connected with the connecting part; it is characterized in that the connecting part is a stirring shaft, the stirring shaft is provided with a blind installation hole, the drive shaft is provided with a mounting part that matches the blind installation hole, and the blind installation hole is embedded with a permanent magnet block The installation part is inserted into the installation blind hole, and the permanent magnet block is connected to the installation part by adsorption; there is a heat insulation gap between the permanent magnet block and the bottom of the installation blind hole. The top-mounted stirring and cooking machine according to item 1 of the scope of patent application is characterized in that the area of the permanent magnet block facing the mounting part is 0.5 square centimeters to 4 square centimeters. The top-mounted stirring and cooking machine according to item 1 of the scope of patent application, characterized in that: the blind installation hole includes a bottom wall and a side wall, the permanent magnet block is fixed against the top bottom wall, and the side wall is provided with a circumference matching the mounting part. Directional limit element structure; the circumferential limit element structure is a protrusion or groove provided on the side wall, or the cross section of the blind installation hole is pentagonal or hexagonal, pentagonal or hexagonal The corners form the circumferential limit element structure. The top-mounted stirring and cooking machine according to item 3 of the scope of patent application is characterized in that: the side wall includes a first side wall of a limit permanent magnet block and a second side wall of a limit mounting part. The top-mounted stirring and cooking machine according to item 4 of the scope of patent application is characterized in that the height of the second side wall is 0.5 cm to 2 cm. According to any one of items 3 to 5 in the scope of the patent application, the top-mounted stirring and cooking machine is characterized in that: the thickness of the permanent magnet block is 0.5 cm to 2 cm, and the side wall and the permanent magnet block have interference Cooperate; or, the side wall is provided with a snap spring or protrusion for positioning the permanent magnet block. The top-mounted stirring and cooking machine according to item 4 of the scope of patent application is characterized in that the holes enclosed by the second side wall are larger than the holes enclosed by the first side wall. According to any one of items 1 to 5 in the scope of the patent application, the top-mounted stirring and cooking machine is characterized in that: the stirring shaft includes an end provided with a blind hole and a bottom connected to the stirring blade, and the cross-sectional area of the bottom is smaller than At the end, the connecting surface between the bottom surface and the end is a tapered inclined surface or a tapered arc surface. According to any one of items 1 to 5 of the scope of patent application, an upper-mounted stirring and cooking machine is characterized in that: the blind installation hole is also provided with a floating elastic member, and the permanent magnet block floats up and down against the floating elastic member. . According to any one of items 1 to 5 of the scope of patent application, the top-mounted stirring and cooking machine is characterized in that: the upper cover includes a detachable cover and a fixed cover, and the fixed cover is provided with a first through which the drive shaft passes. Through hole, the detachable cover is provided with a second through hole corresponding to the first through hole, the first through hole is fastened with a first sealing ring matched with the drive shaft, the second through hole is provided with a second sealing ring, and the second sealing ring is away from A lip is arranged on one side of the inner liner, and the lip is located on the outer circumference of the first sealing ring or partially overlapping with the outer edge of the first sealing ring. The top-mounted stirring and cooking machine according to item 10 of the scope of patent application is characterized in that: the outer periphery of the detachable cover is provided with a third sealing ring, the third sealing ring seals the inner pot, and the third sealing ring is sealed with the second sealing ring. The lip of the ring forms an oil-proof seal for the fixed cover. The top-mounted stirring and cooking machine according to item 10 of the scope of patent application is characterized in that: the side of the fixed cover facing the inner pot is provided with a sink groove surrounding the first through hole, and the first sealing ring Located in the sink groove, the lip abuts against the outer circumference of the sink groove or is located in the sink groove.

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