A detachable electric rice cooker heating device

Abstract

The present invention provides a detachable electric rice cooker heating device, which comprises: an inner pot 11, an electric heating seat 5 and a frame outer frame 6, wherein a heating resistor 58 is arranged inside the electric heating seat 5, and a resistance wire connection point 57 is arranged on the heating resistor 58, and the resistance wire connection point 57 is used to connect to the positive and negative electrodes of a power supply; the bottom of the inner pot 11 can be attached to the upper surface of the electric heating seat 5 to achieve heating of the inner pot 11, and the characteristic is that: an electric rice cooker heating work surface 61 is arranged on the frame outer frame 6, and an opening is arranged on the electric rice cooker heating work surface 61, and a circle of upward raised edges 611 is arranged around the opening; a downward raised retaining edge 59 is arranged near the edge of the lower surface of the electric heating seat 5, and the downward raised retaining edge 59 is located on the outer side of the upward raised edge 611; a plurality of first fixing columns 51 are fixed on the lower surface of the electric rice cooker heating work surface 61, and a fixing plate 52 is installed on the lower surface of the plurality of first fixing columns 51 by screws.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical automation, and more specifically to a detachable electric rice cooker heating device. Background Art

[0002] At present, electric rice cookers on the market usually use electric heating for heating. The heating device is usually a heating plate and a pressure spring device located in the center of the heating plate. When the inner pot is placed on the upper part of the heating plate, if the food in the inner pot reaches a certain weight, the inner pot will press the pressure spring device, so that the pressure spring device is pressed downward under the gravity of the inner pot. When the pressure spring device is pressed downward to a certain extent, the bottom of the inner pot will contact the heating plate, and the heating plate will heat the inner pot. This heating method is to bring the inner pot close to the heating plate, the heating plate remains stationary, and the inner pot is in an active state. It will be difficult to apply this heating device of the electric rice cooker to the intelligent unmanned kitchen because the automation device of the intelligent unmanned kitchen needs to clean the inner pot of the electric rice cooker within a limited space. During the cleaning process, it is very likely that washing water will be sprayed on the heating plate, and the heating plate may cause a short circuit when it is powered on when it is wet.

[0003] The invention patent with patent application number CN201810694669.3 proposes an automatic lifting rice cooker, which is characterized in that: a housing cavity is provided in the rice cooker body, an inner pot is placed in the housing cavity, and the size of the inner pot matches the housing cavity; a plurality of through holes are provided on the side of the rice cooker body, and the through holes are arranged at the lower part of the rice cooker body, the through holes penetrate the rice cooker body until the housing cavity, and a motor is installed in the through holes; a heating plate is provided at the bottom of the housing cavity, and the heating plate is provided with a lifting rod, and the lifting rod is arranged perpendicular to the heating plate; the motor is connected to the lifting rod, and the rotor of the motor is perpendicular to the lifting rod; the rotor and the lifting rod are both provided with threads, and the rotor drives the lifting rod to move, so that the inner pot moves downward or downward. With this structure, when the inner pot is cleaned in a narrow space, it is inevitable that washing water will enter the heating plate at the bottom of the housing cavity inside the rice cooker body, and once washing water enters the rice cooker body, it is difficult for the washing water to be discharged from the housing cavity. Summary of the invention

[0004] In view of this, in order to solve the problem that there is a receiving cavity in the existing heating method of the electric rice cooker, the heating plate is located inside the receiving cavity, the heating plate remains stationary, and the structure of the inner pot moving to approach the heating plate is easy to cause washing water to remain on the heating plate in the inner pot of the rice cooker when the inner pot of the electric rice cooker is cleaned, thereby causing a short circuit. The present invention proposes a detachable electric rice cooker heating device, which no longer places the heating plate in the receiving cavity of the electric rice cooker, but makes the heating plate rise and fall inside the heating work surface of the electric rice cooker. When the heating plate protrudes from the heating work surface of the electric rice cooker, the heating plate and the electric rice cooker are separated. The inner pot of the rice cooker is in contact with the inner pot of the rice cooker to heat the inner pot of the rice cooker; when the heating is completed, the heating plate moves downward, a rib is arranged around the heating plate, and a raised edge is arranged on the cavity wall of the heating work surface of the rice cooker. When the rib drops to be just engaged with the raised edge, the heating plate and the heating work surface of the rice cooker form a closed structure, and the liquid on the upper part of the heating work platform of the rice cooker will no longer be able to leak downward, and the resistance wire connection point of the heating plate is located at the lower part of the heating plate, which can ensure that during the washing process of the inner pot of the rice cooker, the washing liquid will not infringe on the resistance wire connection point, thereby preventing a short circuit.

[0005] A detachable electric rice cooker heating device comprises: an inner pot 11, an electric heating seat 5 and a frame outer frame 6, a heating resistor 58 is arranged inside the electric heating seat 5, and a resistance wire connection point 57 is arranged on the heating resistor 58, and the resistance wire connection point 57 is used to connect to the positive and negative electrodes of the power supply; the bottom of the inner pot 11 can be attached to the upper surface of the electric heating seat 5 to achieve heating of the inner pot 11, characterized in that: an electric rice cooker heating work surface 61 is arranged on the frame outer frame 6, an opening is arranged on the electric rice cooker heating work surface 61, and a circle of upward raised edges 611 is arranged around the opening; a downward raised rib 59 is arranged near the edge of the lower surface of the electric heating seat 5, and the downward raised rib 59 is located on the outer side of the upward raised edge 611; a plurality of electric rice cooker heating work surfaces 61 are fixed on the lower surface of the electric rice cooker heating work surface 61 A first fixing column 51 is provided, and a fixing plate 52 is installed on the lower surface of the plurality of first fixing columns 51 by screws. A third cylinder 53 is fixed on the upper surface of the fixing plate 52. The third push rod 531 of the third cylinder 53 is connected to the lower part of the electric heating seat 5, and can drive the electric heating seat 5 to move up and down in the Z-axis direction. When it is necessary to realize the function of heating the inner pot of the electric rice cooker, the third push rod 531 of the third cylinder 53 drives the electric heating seat 5 to move upward to a specified position, so that the upper surface of the electric heating seat 5 is fitted with the bottom of the inner pot 11, thereby realizing the heating treatment of the inner pot 11; when the inner pot of the electric rice cooker is heated, the third push rod 531 of the third cylinder 53 drives the electric heating seat 5 to move downward, so that the downward protruding retaining edge 59 can just bite with the upward protruding edge 611 of the heating work surface 61 of the electric rice cooker.

[0006] Further, the downwardly protruding retaining edge 59 is used to resist the flushing of the washing water from the upper part, and the upwardly protruding edge 611 is used to resist the water flow on the upper surface of the electric rice cooker heating work surface 61. The height of the upwardly protruding edge 611 and the downwardly protruding retaining edge 59 is ≧2mm, so that the overlapped part of the upwardly protruding edge 611 and the downwardly protruding retaining edge 59 can be ensured to exceed 2mm, so as to achieve a good waterproof effect. Further preferably, the height of the downwardly protruding retaining edge 59 and the upwardly protruding edge 611 are both 5 to 6mm, so as to achieve a better waterproof effect and ensure that the washing water will not leak downward from the gap between the electric heating seat 5 and the opening of the electric rice cooker heating work surface 61.

[0007] Furthermore, in order to make the third push rod 531 of the third cylinder 53 drive the electric heating seat 5 to move up and down more stably, the number of the third push rods 531 is designed to be 2, and the tops of the two third push rods 531 are fixed on both sides of the lower surface of the first connecting plate 54 at positions symmetrical along the center line; the upper surface of the first connecting plate 54 and the lower surface of the second connecting plate 56 are fixed by screws, and the upper surface of the second connecting plate 56 is fixed to the lower surface of the electric heating seat 5 by three evenly distributed second fixing columns 55.

[0008] Furthermore, the detachable electric rice cooker heating device can not only realize the automatic lifting and lowering of the electric heating seat 5, but also realize the multi-dimensional movement of the inner pot 11, which can be conducive to realizing the actions of adding rice, heating and cleaning the inner pot 11.

[0009] Furthermore, the periphery of the inner liner 11 is fixed by a clamp assembly 13, and the clamp assembly 13 includes a first joint 131, a second joint 132, a tensioning slit 133 and a clamp ring 134. The clamp ring 134 is sleeved on the periphery of the inner liner 11, one end of the clamp ring 134 is connected to the first joint 131, and the other end of the clamp ring 134 is connected to the second joint 132. A tensioning slit 133 is provided between the first joint 131 and the second joint 132, and screw holes 133 are provided on the first joint 131 and the second joint 132, respectively. 5. Install screws and nuts in the screw holes 135 of the first joint 131 and the second joint 132, and adjust the tightness of the nuts to change the distance between the tensioning gaps 133, so that the liner 11 can be tightly fixed inside the clamp ring 134; the free end of the first joint 131 is connected to the automatic lifting mechanism, which includes a pen-type push rod device 4, a cylinder or a lifting structure controlled by a motor. Preferably, considering the use space and waterproof performance, the automatic lifting mechanism adopts a pen-type push rod device.

[0010] Further, the free end of the first joint 131 is connected with the first rotating shaft sleeve 7, which is a three-way structure, including a first through hole 71, a second through hole 72 and a third through hole 73. The free end of the first joint 131 is inserted from the third through hole 73, and the second push head 31 of the second cylinder 3 is inserted from the second through hole 72, and the second through hole 72 and the third through hole 73 are in a horizontal position, and the first through hole 71 is downward; the lifting shaft 46 of the pen-type push rod device 4 is fixed inside the first through hole 71, and the motor inside the pen-type push rod device 4 can drive the lifting shaft 46 and the first rotating shaft sleeve 7 to move up and down, thereby driving the inner liner 11 to move up and down through the clamp assembly 13. In this way, the bottom of the inner liner 11 can better fit the upper surface of the electric heating seat 5 more perfectly.

[0011] Furthermore, the free end of the first joint 131 is connected to the second push head 31 of the second cylinder 3, and the second cylinder 3 can drive the first joint 131 to rotate along the axial direction of the first joint 131, thereby driving the inner tank 11 to rotate on the YZ plane, so that the inner tank can achieve vertical upright and inclined angles, which is conducive to cleaning the inner tank at an inclined angle.

[0012] Furthermore, the pen-type push rod device 4 includes a fixed rod 41, a nylon sleeve 42, a fixed sleeve 43, a second rotating shaft sleeve 44, a lifting shaft 46 and a bottom fixed bracket 45, wherein a fixing hole 411 is provided at the bottom of the fixed rod 41, a lifting shaft 46 is provided inside the fixed rod 41, the upper end of the lifting shaft 46 is fixed inside the first through hole 71, the upper part of the second rotating shaft sleeve 44 is sleeved inside the first through hole 71, the combined structure of the fixed rod 41 and the lifting shaft 46 is located inside the second rotating shaft sleeve 44, and the outside of the second rotating shaft sleeve 44 is sleeved with the nylon sleeve 42 and The fixing sleeve 43, wherein the top of the nylon sleeve 42 is provided with an upper edging 421, the upper edging 421 just covers the upper opening of the fixing sleeve 43, the bottom of the fixing sleeve 43 is provided with a fixing base 431, the fixing base 431 is fixed to the upper surface of the low-position working platform 63 of the rack outer frame 6 by screws, the bottom fixing bracket 45 is fixed to the inner side wall of the rack outer frame 6, the bottom fixing bracket 45 is provided with a fixing hole 411, the fixing hole 411 on the bottom fixing bracket 45 is consistent with the fixing hole 411 at the bottom of the fixing rod 41, and is locked by screws. The function of the nylon sleeve 42 is to reduce the friction between the metal fixing rod 41 and the metal second rotating shaft sleeve 44.

[0013] Furthermore, in order to realize the rotational movement of the inner pot 11 in the XY-axis plane, the detachable electric rice cooker heating device also includes a fourth cylinder 8, and a fourth pusher head 81 of the fourth cylinder 8 is provided with a fixing hole; the fixing clip 82 includes a first semicircular through hole 821, a second semicircular through hole 822, a large circular hole 824 and a small circular hole 825, and the position and size of the small circular hole 825 just match the position and size of the fixing hole on the fourth pusher head 81, and the fixing holes on the small circular hole 825 and the fourth pusher head 81 are connected to each other. The bearing passes through the inside of the hole, and the fixing rod 41 of the pen-type push rod device 4 passes through the inside of the large circular hole 824. The two third fixing columns 823 can rotate in the first semicircular through hole 821 and the second semicircular through hole 822 respectively, and the two third fixing columns 823 are respectively fixed on the low-position working platform, so that the fourth push head 81 of the fourth cylinder 8 can drive the fixing clamp 82 to rotate, and the fixing clamp 82 drives the pen-type push rod device 4 to rotate, thereby driving the inner liner 11 to rotate in the XY axis plane.

[0014] Furthermore, a first protruding ear 8241 and a second protruding ear 8242 are respectively arranged at symmetrical positions inside the large circular hole 824, and a first slide groove 441 and a second slide groove 442 are symmetrically arranged in the Y-axis direction of the second rotating shaft sleeve 44. The first protruding ear 8241 is clamped on the first slide groove 441, and the second protruding ear 8242 is clamped on the second slide groove 442. This structure can not only ensure that the fixing clamp 82 can smoothly drive the pen-type push rod device 4 to rotate in the XY-axis plane, but also make the movement trajectory of the lifting shaft 46 of the pen-type push rod device 4 more stable.

[0015] Furthermore, the fourth pusher head 81 of the fourth cylinder 8 can drive the fixing clamp 82 to rotate along the fixing rod 41 of the pen-type pusher 4 .

[0016] Furthermore, a recessed groove is provided at the lower portion of the free end of the first joint 131, and a raised column 311 is provided at the lower portion of the second push head 31 of the second cylinder 3. The raised column 311 provided at the lower portion of the second push head 31 of the second cylinder 3 can be snapped into the recessed groove provided at the lower portion of the free end of the first joint 131. Such a structure can enable a closer connection between the first joint 131 and the second cylinder 3.

[0017] Furthermore, in order to make the detachable electric rice cooker heating device have a certain thermal insulation performance, an outer shell 12 is provided on the periphery of the inner pot 11, and thermal insulation cotton, such as polystyrene, is provided between the inner pot 11 and the outer shell 12, which can play a role in physical thermal insulation.

[0018] Furthermore, the shell 12 includes a first shell 121 and a second shell 122, one end of the first shell 121 is connected to an upper connecting block 1211, one end of the second shell 122 is connected to a lower connecting block 1221, the lower part of the first shell 121 and the upper part of the second shell 122 are matched and fixed by screws; the clamp ring 134 is located between the first shell 121 and the second shell 122, and an accommodating cavity is provided on the upper connecting block 1211 and the lower connecting block 1221, and the first joint 131 and the second joint 132 pass through the accommodating cavity.

[0019] Furthermore, the electric rice cooker is provided with an upper cover 2, which is fixed on the first push rod 141 of the first cylinder 14, and the main body of the first cylinder 14 is fixed at the middle position of the upper connecting block 1211 and the lower connecting block 1221. When the first push rod 141 of the first cylinder 14 is pushed outward, the upper cover 2 is opened, and when the first push rod 141 of the first cylinder 14 is retracted inward, the upper cover 2 is closed.

[0020] Furthermore, the upper cover 2 is also provided with a rice feeding mechanism 21 and a diversion and cleaning mechanism 22. The rice feeding mechanism allows rice grains to smoothly enter the inner pot of the rice cooker from the outside through the rice feeding mechanism 21, and the diversion and cleaning mechanism 22 allows water vapor to smoothly overflow from the inner pot 11 to prevent the air pressure in the inner pot from being too high.

[0021] The working principle of the detachable electric rice cooker heating device of the present invention is as follows: the third cylinder 53 drives the electric heating seat 5 to move up and down, so that the electric heating seat 5 can move upward to a specified position, thereby heating the bottom of the inner pot 11; when the inner pot 11 is heated, the third cylinder 53 drives the electric heating seat 5 to move downward, so that the retaining edge 59 and the raised edge 611 can be matched, thereby ensuring that during the flushing process of the inner pot 11, the washing liquid will not soak into the resistance wire connection point 57 at the bottom of the electric heating seat 5, thereby ensuring the safety of the electric heating seat 5. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a detachable electric rice cooker heating device.

[0023] Figure 2 It is a structural schematic diagram of a detachable electric rice cooker heating device.

[0024] Figure 3 It is a structural schematic diagram of a detachable electric rice cooker heating device.

[0025] Figure 4 It is a structural schematic diagram of a detachable electric rice cooker heating device.

[0026] Figure 5 It is a structural schematic diagram of a detachable electric rice cooker heating device.

[0027] Figure 6 It is a structural schematic diagram of a pen-type push rod device.

[0028] Figure 7 It is a structural schematic diagram of the lifting and rotating device of the electric rice cooker.

[0029] Figure 8 It is a structural schematic diagram of the lifting and rotating device of the electric rice cooker.

[0030] Fig. 9 It is a structural schematic diagram of the lifting and rotating device of the electric rice cooker.

[0031] Fig.10 It is a schematic diagram of the mechanism for matching the electric heating seat with the heating work surface of the rice cooker.

[0032] Fig.11 It is a schematic diagram of the structure of an electric rice cooker.

[0033] Fig.12 It is a schematic diagram of the structure of an electric rice cooker.

[0034] Fig.13 This is an exploded view of the rice cooker cover.

[0035] Fig.14 Schematic diagram of the structure of the fixing clip.

[0036] Fig.15 It is a schematic diagram of the mechanism for matching the electric heating seat with the heating work surface of the rice cooker.

[0037]

[0038]

[0039]

[0040]

[0041] The accompanying drawings will be described in detail below in conjunction with specific implementation cases. DETAILED DESCRIPTION

[0042] Specific implementation case 1:

[0043] like Figures 1 to 5 As shown, it is a structural schematic diagram of a detachable electric rice cooker heating device; Figure 6 As shown in , it is a schematic diagram of the structure of the pen-type push rod device; as shown in 7 to 9, it is a schematic diagram of the structure of the electric rice cooker lifting and rotating device; Figures 8-9 As shown in FIG. 1 , the structural diagram of the lifting and rotating device of the electric rice cooker; Fig.10 As shown in FIG. 1 , it is a schematic diagram of the mechanism for matching the electric heating seat with the heating work surface of the electric rice cooker; Figures 11-12As shown in FIG. 1 , it is a schematic diagram of the structure of the electric rice cooker; Fig.13 As shown in FIG. , it is an exploded view of the upper cover of the rice cooker; Fig.14 As shown, it is a schematic diagram of the structure of the fixing clip; Fig.15 The figure shows a schematic diagram of the mechanism for matching the electric heating seat with the heating work surface of the electric rice cooker.

[0044] A detachable electric rice cooker heating device comprises: an inner pot 11, an electric heating seat 5 and a frame outer frame 6, a heating resistor 58 is arranged inside the electric heating seat 5, and a resistance wire connection point 57 is arranged on the heating resistor 58, and the resistance wire connection point 57 is used to connect to the positive and negative electrodes of the power supply; the bottom of the inner pot 11 can be attached to the upper surface of the electric heating seat 5 to achieve heating of the inner pot 11, characterized in that: an electric rice cooker heating work surface 61 is arranged on the frame outer frame 6, an opening is arranged on the electric rice cooker heating work surface 61, and a circle of upward raised edges 611 is arranged around the opening; a downward raised rib 59 is arranged near the edge of the lower surface of the electric heating seat 5, and the downward raised rib 59 is located on the outer side of the upward raised edge 611; a plurality of electric rice cooker heating work surfaces 61 are fixed on the lower surface of the electric rice cooker heating work surface 61 A first fixing column 51 is provided, and a fixing plate 52 is installed on the lower surface of the plurality of first fixing columns 51 by screws. A third cylinder 53 is fixed on the upper surface of the fixing plate 52. The third push rod 531 of the third cylinder 53 is connected to the lower part of the electric heating seat 5, and can drive the electric heating seat 5 to move up and down in the Z-axis direction. When it is necessary to realize the function of heating the inner pot of the electric rice cooker, the third push rod 531 of the third cylinder 53 drives the electric heating seat 5 to move upward to a specified position, so that the upper surface of the electric heating seat 5 is fitted with the bottom of the inner pot 11, thereby realizing the heating treatment of the inner pot 11; when the inner pot of the electric rice cooker is heated, the third push rod 531 of the third cylinder 53 drives the electric heating seat 5 to move downward, so that the downward protruding retaining edge 59 can just bite with the upward protruding edge 611 of the heating work surface 61 of the electric rice cooker.

[0045] The downwardly protruding retaining edge 59 is used to resist the flushing of the washing water from the upper part, and the upwardly protruding edge 611 is used to resist the water flow on the upper surface of the electric rice cooker heating work surface 61. The height of the upwardly protruding edge 611 and the downwardly protruding retaining edge 59 is ≧2mm, so that the overlapped part of the upwardly protruding edge 611 and the downwardly protruding retaining edge 59 can be ensured to exceed 2mm, so as to achieve a good waterproof effect. Further preferably, the height of the downwardly protruding retaining edge 59 and the upwardly protruding edge 611 are both 5-6mm, so as to achieve a better waterproof effect and ensure that the washing water will not leak downward from the gap between the electric heating seat 5 and the opening of the electric rice cooker heating work surface 61.

[0046] In order to make the third push rod 531 of the third cylinder 53 drive the electric heating seat 5 to move up and down more stably, the number of the third push rods 531 is designed to be 2, and the tops of the two third push rods 531 are fixed on both sides of the lower surface of the first connecting plate 54 at positions symmetrical along the center line; the upper surface of the first connecting plate 54 and the lower surface of the second connecting plate 56 are fixed by screws, and the upper surface of the second connecting plate 56 is fixed to the lower surface of the electric heating seat 5 by three evenly distributed second fixing columns 55.

[0047] The detachable electric rice cooker heating device can not only realize the automatic lifting of the electric heating seat 5, but also realize the multi-dimensional movement of the inner pot 11, which is conducive to realizing the actions of adding rice, heating and cleaning the inner pot 11.

[0048] The periphery of the inner liner 11 is fixed by a clamp assembly 13, which includes a first joint 131, a second joint 132, a tensioning slit 133 and a clamp ring 134. The clamp ring 134 is sleeved on the periphery of the inner liner 11, one end of the clamp ring 134 is connected to the first joint 131, and the other end of the clamp ring 134 is connected to the second joint 132. A tensioning slit 133 is provided between the first joint 131 and the second joint 132, and screw holes 135 are provided on the first joint 131 and the second joint 132, respectively. Screws and nuts are installed in the screw holes 135 of the first joint 131 and the second joint 132, and the tightness of the nuts is adjusted to change the distance between the tensioning gaps 133, so that the inner liner 11 can be tightly fixed inside the clamp ring 134; the free end of the first joint 131 is connected to the automatic lifting mechanism, and the automatic lifting mechanism includes a pen-type push rod device 4, a cylinder or a lifting structure controlled by a motor. Preferably, considering the usage space and waterproof performance, the automatic lifting mechanism adopts a pen-type push rod device.

[0049] The free end of the first joint 131 is connected with the first rotating shaft sleeve 7, which is a three-way structure, including a first through hole 71, a second through hole 72 and a third through hole 73. The free end of the first joint 131 is inserted from the third through hole 73, and the second push head 31 of the second cylinder 3 is inserted from the second through hole 72, and the second through hole 72 and the third through hole 73 are in a horizontal position, and the first through hole 71 is downward; the lifting shaft 46 of the pen-type push rod device 4 is fixed inside the first through hole 71, and the motor inside the pen-type push rod device 4 can drive the lifting shaft 46 and the first rotating shaft sleeve 7 to move up and down, thereby driving the inner liner 11 to move up and down through the clamp assembly 13. In this way, the bottom of the inner liner 11 can better fit the upper surface of the electric heating seat 5 more perfectly.

[0050] The free end of the first joint 131 is connected to the second push head 31 of the second cylinder 3. The second cylinder 3 can drive the first joint 131 to rotate along the axial direction of the first joint 131, thereby driving the inner pot 11 to rotate on the YZ plane, so that the inner pot can achieve vertical upright and inclined angles, which is conducive to cleaning the inner pot at an inclined angle.

[0051] The pen-type push rod device 4 includes a fixed rod 41, a nylon sleeve 42, a fixed sleeve 43, a second rotating shaft sleeve 44, a lifting shaft 46 and a bottom fixed bracket 45, wherein a fixing hole 411 is provided at the bottom of the fixed rod 41, a lifting shaft 46 is provided inside the fixed rod 41, the upper end of the lifting shaft 46 is fixed inside the first through hole 71, the upper part of the second rotating shaft sleeve 44 is sleeved inside the first through hole 71, the combined structure of the fixed rod 41 and the lifting shaft 46 is located inside the second rotating shaft sleeve 44, and the outside of the second rotating shaft sleeve 44 is sleeved with the nylon sleeve 42 and the fixed sleeve in sequence from the inside to the outside 43, wherein the top of the nylon sleeve 42 is provided with an upper edging 421, which just covers the upper opening of the fixing sleeve 43, and the bottom of the fixing sleeve 43 is provided with a fixing base 431, which is fixed to the upper surface of the low-position working platform 63 of the rack outer frame 6 by screws, and the bottom fixing bracket 45 is fixed to the inner side wall of the rack outer frame 6, and the bottom fixing bracket 45 is provided with a fixing hole 411, and the fixing hole 411 on the bottom fixing bracket 45 is consistent with the position of the fixing hole 411 at the bottom of the fixing rod 41, and is locked by screws. The function of the nylon sleeve 42 is to reduce the friction between the metal fixing rod 41 and the metal second rotating shaft sleeve 44.

[0052] In order to realize the rotational movement of the inner pot 11 in the XY axis plane, the detachable electric rice cooker heating device also includes a fourth cylinder 8, and a fourth pusher head 81 of the fourth cylinder 8 is provided with a fixing hole; the fixing clamp 82 includes a first semicircular through hole 821, a second semicircular through hole 822, a large circular hole 824 and a small circular hole 825, the position and size of the small circular hole 825 just match the position and size of the fixing hole on the fourth pusher head 81, and bearings pass through the inside of the small circular hole 825 and the fixing hole on the fourth pusher head 81, and the inside of the large circular hole 824 passes through the fixing rod 41 of the pen-type pusher 4, and the two third fixing columns 823 can rotate in the first semicircular through hole 821 and the second semicircular through hole 822 respectively, and the two third fixing columns 823 are respectively fixed on the low-position working platform, so that the fourth pusher head 81 of the fourth cylinder 8 can drive the fixing clamp 82 to rotate, and the fixing clamp 82 drives the pen-type pusher 4 to rotate, thereby driving the inner pot 11 to rotate in the XY axis plane.

[0053] The first protruding ear 8241 and the second protruding ear 8242 are respectively arranged at symmetrical positions inside the large circular hole 824, and the first sliding groove 441 and the second sliding groove 442 are symmetrically arranged in the Y-axis direction of the second rotating shaft sleeve 44. The first protruding ear 8241 is clamped on the first sliding groove 441, and the second protruding ear 8242 is clamped on the second sliding groove 442. The use of this structure can not only ensure that the fixing clamp 82 can smoothly drive the pen-type push rod device 4 to rotate in the XY-axis plane, but also make the movement trajectory of the lifting shaft 46 of the pen-type push rod device 4 more stable.

[0054] The fourth pusher head 81 of the fourth cylinder 8 can drive the fixing clamp 82 to rotate along the fixing rod 41 of the pen-type pusher 4 .

[0055] A recessed groove is provided at the lower portion of the free end of the first joint 131, and a raised column 311 is provided at the lower portion of the second push head 31 of the second cylinder 3. The raised column 311 provided at the lower portion of the second push head 31 of the second cylinder 3 can be snapped into the recessed groove provided at the lower portion of the free end of the first joint 131. Such a structure can enable a closer connection between the first joint 131 and the second cylinder 3.

[0056] In order to make the detachable electric rice cooker heating device have certain heat preservation performance, an outer shell 12 is provided on the periphery of the inner pot 11, and heat preservation cotton such as polystyrene is provided between the inner pot 11 and the outer shell 12, which can play a role of physical heat preservation.

[0057] The shell 12 includes a first shell 121 and a second shell 122, one end of the first shell 121 is connected to an upper connecting block 1211, one end of the second shell 122 is connected to a lower connecting block 1221, the lower part of the first shell 121 and the upper part of the second shell 122 are matched and fixed by screws; the clamp ring 134 is located between the first shell 121 and the second shell 122, and an accommodating cavity is provided on the upper connecting block 1211 and the lower connecting block 1221, and the first joint 131 and the second joint 132 pass through the accommodating cavity.

[0058] The electric rice cooker is also provided with an upper cover 2, which is fixed on the first push rod 141 of the first cylinder 14, and the main body of the first cylinder 14 is fixed at the middle position of the upper connecting block 1211 and the lower connecting block 1221. When the first push rod 141 of the first cylinder 14 is pushed outward, the upper cover 2 is opened, and when the first push rod 141 of the first cylinder 14 is retracted inward, the upper cover 2 is closed.

[0059] The upper cover 2 is also provided with a rice feeding mechanism 21 and a diversion and cleaning mechanism 22. The rice feeding mechanism allows rice grains to smoothly enter the inner pot of the rice cooker through the rice feeding mechanism 21 from the outside, and the diversion and cleaning mechanism 22 allows water vapor to smoothly overflow from the inner pot 11 to prevent the air pressure in the inner pot from being too high.

[0060] The working principle of the detachable electric rice cooker heating device of the present invention is as follows: the third cylinder 53 drives the electric heating seat 5 to move up and down, so that the electric heating seat 5 can move upward to a specified position, thereby heating the bottom of the inner pot 11; when the inner pot 11 is heated, the third cylinder 53 drives the electric heating seat 5 to move downward, so that the retaining edge 59 and the raised edge 611 can be matched, thereby ensuring that during the flushing process of the inner pot 11, the washing liquid will not soak into the resistance wire connection point 57 at the bottom of the electric heating seat 5, thereby ensuring the safety of the electric heating seat 5.

[0061] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A detachable electric rice cooker heating device, comprising: An inner pot (11), an electric heating seat (5) and an outer frame (6) of a machine frame, wherein a heating resistor (58) is arranged inside the electric heating seat (5), and a resistance wire connection point (57) is arranged on the heating resistor (58), and the resistance wire connection point (57) is used to connect to the positive and negative electrodes of a power supply; the bottom of the inner pot (11) can be attached to the upper surface of the electric heating seat (5) so as to achieve heating of the inner pot (11), characterized in that: an electric rice cooker heating work surface (61) is arranged on the outer frame (6) of the machine frame, and an opening is arranged on the electric rice cooker heating work surface (61), and a circle of upwardly protruding edges (611) is arranged around the opening; a downwardly protruding retaining edge (59) is arranged near the edge of the lower surface of the electric heating seat (5), and the downwardly protruding retaining edge (59) is located on the outer side of the upwardly protruding edge (611); a plurality of first fixing columns (51) are fixed on the lower surface of the electric rice cooker heating work surface (61) The fixing plate (52) is fixed to the lower surface of the plurality of first fixing columns (51) by screws, and a third cylinder (53) is fixed to the upper surface of the fixing plate (52). The third push rod (531) of the third cylinder (53) is connected to the lower part of the electric heating seat (5) and can drive the electric heating seat (5) to move up and down in the Z-axis direction. When it is necessary to heat the inner pot of the electric rice cooker, the third push rod (531) of the third cylinder (53) drives the electric heating seat (5) to move upward to a specified position, so that the upper surface of the electric heating seat (5) fits with the bottom of the inner pot (11), thereby achieving heating treatment of the inner pot (11); when the inner pot of the electric rice cooker is heated, the third push rod (531) of the third cylinder (53) drives the electric heating seat (5) to move downward, so that the downward protruding retaining edge (59) can just fit with the upward protruding edge (611) of the heating work surface (61) of the electric rice cooker.

2. The detachable electric rice cooker heating device according to claim 1, characterized in that: The heights of the upwardly protruding edge (611) and the downwardly protruding rib (59) are ≧2 mm.

3. The detachable electric rice cooker heating device according to claim 1, characterized in that: The number of the third push rods (531) is two, and the tops of the two third push rods (531) are fixed on both sides of the lower surface of the first connecting plate (54) at positions symmetrical along the center line; the upper surface of the first connecting plate (54) and the lower surface of the second connecting plate (56) are fixed by screws, and the upper surface of the second connecting plate (56) is fixed to the lower surface of the electric heating seat (5) by three evenly distributed second fixing columns (55).

4. The detachable electric rice cooker heating device according to claim 1, characterized in that: The periphery of the inner liner (11) is fixed by a clamp assembly (13). The clamp assembly (13) comprises a first joint (131), a second joint (132), a tensioning slit (133) and a clamp ring (134). The clamp ring (134) is sleeved on the periphery of the inner liner (11). One end of the clamp ring (134) is connected to the first joint (131), and the other end of the clamp ring (134) is connected to the second joint (132). A tensioning slit (133) is provided in the middle of the first joint (131) and the second joint (132). Screw holes (135) are provided on the first joint (131) and the second joint (132), respectively. Screws and nuts are installed in the screw holes (135) of the first joint (131) and the second joint (132); the free end of the first joint (131) is connected to an automatic lifting mechanism.

5. The detachable electric rice cooker heating device according to claim 4, characterized in that: The free end of the first joint (131) is connected to the first rotating shaft sleeve (7), and the first rotating shaft sleeve (7) is a three-way structure, including a first through hole (71), a second through hole (72) and a third through hole (73). The free end of the first joint (131) is inserted from the third through hole (73), and the second push head (31) of the second cylinder (3) is inserted from the second through hole (72). The second through hole (72) and the third through hole (73) are located in a horizontal position, and the first through hole (71) faces downward. The lifting shaft (46) of the pen-type push rod device (4) is fixed inside the first through hole (71), and the motor inside the pen-type push rod device (4) can drive the lifting shaft (46) and the first rotating shaft sleeve (7) to move up and down, thereby driving the inner liner (11) to move up and down through the clamp assembly (13).

6. The detachable electric rice cooker heating device according to claim 4, characterized in that: The free end of the first joint (131) is connected to the second push head (31) of the second cylinder (3), and the second cylinder (3) can drive the first joint (131) to rotate along the axial direction of the first joint (131), thereby driving the inner container (11) to rotate on the YZ plane.

7. The detachable electric rice cooker heating device according to claim 4, characterized in that: The pen-type push rod device (4) comprises a fixed rod (41), a nylon sleeve (42), a fixed sleeve (43), a second rotating shaft sleeve (44), a lifting shaft (46) and a bottom fixed bracket (45), wherein a fixing hole (411) is provided at the bottom of the fixed rod (41), a lifting shaft (46) is provided inside the fixed rod (41), an upper end of the lifting shaft (46) is fixed inside a first through hole (71), an upper part of the second rotating shaft sleeve (44) is sleeved inside the first through hole (71), a combined structure of the fixed rod (41) and the lifting shaft (46) is located inside the second rotating shaft sleeve (44), and the outside of the second rotating shaft sleeve (44) is sleeved with the nylon sleeve (42) and the fixed sleeve (43) in sequence from the inside to the outside. The fixed sleeve (43) is provided with an upper edging (421) at the top of the nylon sleeve (42), and the upper edging (421) just covers the upper opening of the fixed sleeve (43). A fixed base (431) is provided around the bottom of the fixed sleeve (43), and the fixed base (431) is fixed to the upper surface of the low-position working platform (63) of the rack outer frame (6) by screws. The bottom fixed bracket (45) is fixed to the inner side wall of the rack outer frame (6), and the bottom fixed bracket (45) is provided with a fixing hole (411). The fixing hole (411) on the bottom fixed bracket (45) is consistent with the position of the fixing hole (411) at the bottom of the fixing rod (41), and is locked by screws.

8. The detachable electric rice cooker heating device according to claim 4, characterized in that: The detachable electric rice cooker heating device also includes a fourth cylinder (8), a fourth pusher head (81) of the fourth cylinder (8) is provided with a fixing hole; the fixing clamp (82) includes a first semicircular through hole (821), a second semicircular through hole (822), a large circular hole (824) and a small circular hole (825), the position and size of the small circular hole (825) just match the position and size of the fixing hole on the fourth pusher head (81), and a bearing passes through the inside of the small circular hole (825) and the fixing hole on the fourth pusher head (81), and the large circular hole (824) is provided with a fixing hole. 24) passes through the interior of the pen-type push rod (4) through the fixing rod (41), and the two third fixing columns (823) can rotate in the first semicircular through hole (821) and the second semicircular through hole (822), respectively, and the two third fixing columns (823) are respectively fixed on the low-position working platform, so that the fourth push head (81) of the fourth cylinder (8) can drive the fixing clamp (82) to rotate, and the fixing clamp (82) drives the pen-type push rod (4) to rotate, thereby driving the inner liner (11) to rotate in the XY axis plane.

9. The detachable electric rice cooker heating device according to claim 8, characterized in that: A first protruding ear (8241) and a second protruding ear (8242) are respectively arranged at symmetrical positions inside the large circular hole (824), and a first sliding groove (441) and a second sliding groove (442) are symmetrically arranged in the Y-axis direction of the second rotating shaft sleeve (44), the first protruding ear (8241) is clamped on the first sliding groove (441), and the second protruding ear (8242) is clamped on the second sliding groove (442).

10. The detachable electric rice cooker heating device according to claim 4, characterized in that: A recessed groove is provided at the lower part of the free end of the first joint (131), and a raised column (311) is provided at the lower part of the second push head (31) of the second cylinder (3). The raised column (311) provided at the lower part of the second push head (31) of the second cylinder (3) can be snapped into the recessed groove provided at the lower part of the free end of the first joint (131).

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