A water tank automatic push-out structure and a cooking device having the same

Abstract

The present invention relates to an automatic water tank push-out structure and a cooking device, comprising a water tank, a water tank seat, a driving motor and a pusher, wherein the pusher is used to push the water tank forward, and at the first angle, the connecting line AB is parallel to the extension direction of the water tank, and in this state, the water tank is pushed out by the pusher; and at the second angle or the third angle, the connecting line AB intersects with the extension direction of the water tank to form the second angle or the third angle, and in this state, a gap is left between the pusher and the tail of the water tank, so that the water tank can be pushed into the water tank seat under the action of an external force. Compared with the prior art, the pusher in the present invention can push out the water tank regardless of whether it moves in the second angle, the first angle and the third angle in sequence or moves in the third angle, the first angle and the second angle in sequence, and the pusher does not need to be reset after the water tank is pushed out, thereby simplifying the action process and control steps of pushing out the water tank.

Description

Technical Field

[0001] The invention relates to the field of cooking devices, and in particular to an automatic water tank pushing-out structure and a cooking device with the structure. Background Art

[0002] Cooking devices with steaming functions are generally equipped with water tanks, such as electric steamers, steam-bake-in-one machines, etc. The water tank is generally arranged on the right side of the inner pot, which occupies a large space, making it impossible to maximize the volume of the inner pot, and greatly reducing the cooking space of the cooking device. Therefore, placing the water tank on a part of the control panel has become one of the main trends. For the overall aesthetics of the product, the water tank is generally installed on the back side of the control panel. When taking the water tank, press the button on the control panel, and the water tank is automatically pushed out by the drive device. For example, the Chinese utility model patent with patent number ZL201220591711.7 (authorization announcement number CN202979507U) discloses a water tank push-out structure for household appliances.

[0003] In the prior art, the water tank is generally pushed out by structures such as push rods and cams. For example, the Chinese utility model patent with patent number ZL201720543211.9 (authorization announcement number CN206955070U) discloses a water tank push-out device, including a housing and a water tank slidably connected to the front end of the housing, a micro switch is provided at the end of the housing, an eccentric wheel driven by a motor is provided between the water tank and the micro switch, and a protrusion is provided on the eccentric wheel, and the motor drives the eccentric wheel to rotate. When the protrusion of the eccentric wheel abuts against the water tank, the eccentric wheel pushes the water tank to slide out relative to the housing, and when the protrusion of the eccentric wheel abuts against the micro switch, the micro switch controls the motor to stop rotating. In the patent, during one push-out process of the water tank, after the motor drives the eccentric wheel to push the water tank into place, the motor needs to reverse to reset the eccentric wheel, which not only makes the control of the water tank push-out process complicated, but also affects the service life of the motor. Summary of the invention

[0004] The first technical problem to be solved by the present invention is to provide a water tank automatic pushing structure with simple structure and convenient control in view of the prior art.

[0005] The second technical problem to be solved by the present invention is to provide a water tank automatic ejection structure with a long service life in view of the prior art.

[0006] The third technical problem to be solved by the present invention is to provide a cooking device with the above-mentioned water tank automatic pushing-out structure in view of the prior art.

[0007] The technical solution adopted by the present invention to solve at least one of the above technical problems is: a water tank automatic pushing-out structure, comprising a water tank and a water tank seat for accommodating the water tank, the water tank seat having an opening for the water tank to enter and exit, and the water tank can be relatively slidably connected to the water tank seat and can be extended from the opening of the water tank seat, characterized in that:

[0008] The invention also includes a pusher and a driving mechanism disposed behind the water tank and used to push the water tank forward. The pusher can reciprocate around a first central axis A extending vertically under the action of the driving mechanism. As the pusher rotates, a line AB formed by connecting an end B of the pusher farthest from the central axis A and the central axis A on a horizontal plane and the extension direction of the water tank reciprocates to form a second angle, a first angle and a third angle in sequence.

[0009] Among them, at the above-mentioned first angle, the connecting line AB is parallel to the extending direction of the above-mentioned water tank. In this state, the water tank is pushed out under the action of the pushing member; and at the above-mentioned second angle or third angle, the connecting line AB intersects with the extending direction of the above-mentioned water tank to form the second angle or the third angle respectively, and in this state, a gap is left between the pushing member and the tail of the water tank so that the water tank can be pushed into the water tank seat under the action of external force.

[0010] Furthermore, the second angle is equal to the third angle, which can further promote the smooth pushing of the water tank by the pusher and further simplify the control of pushing the water tank out.

[0011] Furthermore, at the second angle or the third angle, the connecting line AB is perpendicular to the extension direction of the water tank, thereby better preventing the pushing member from accidentally pushing the water tank out at the second angle or the third angle.

[0012] Furthermore, the driving mechanism is a driving motor, and further includes a transmission member for linking the driving motor and the pushing member and a limiting member for limiting the transmission member. At the second angle or the third angle, the transmission member abuts against the limiting member, and the driving motor stops rotating. In this way, by controlling the movement of the transmission member, on the one hand, the rotation of the pushing member can be controlled, and on the other hand, the driving motor can be controlled. The driving motor stops rotating after the water tank is pushed out and rotates in the opposite direction when the water tank is pushed out next time, that is, during the process of pushing out the water tank, the driving motor only needs to rotate in one direction without reversing, thereby extending the service life of the driving motor, and further extending the service life of the automatic water tank pushing-out structure and the cooking device.

[0013] Furthermore, the stopper includes a first stopper and a second stopper, and the transmission member reciprocates between the first stopper and the second stopper under the action of the drive motor, and the transmission member abuts against the first stopper, and at a third angle, the transmission member abuts against the second stopper, and the drive motor stops rotating in both states. Thus, the movement of the pusher can be better controlled by controlling the movement of the transmission member, and the problem that the water tank cannot be pushed out smoothly can be better avoided.

[0014] Furthermore, the transmission member includes a first transmission gear mounted on the output shaft of the driving motor and a second transmission gear meshing with the first transmission gear, and the pushing member is a pushing wheel linked with the second transmission gear, and the pushing wheel can rotate around the central axis of the second transmission gear, and in the rotation trajectory of the pushing wheel, the central axis of the second transmission gear is the first central axis A, and the first limiter and the second limiter are arranged along the rotation trajectory of the first transmission gear. Thus, the transmission member can more stably transmit the driving force of the driving motor to the transmission member, and the rotation trajectory of the pushing member can be more reliably controlled by controlling the rotation of the first transmission gear in the transmission member.

[0015] Furthermore, the second transmission gear and the corresponding portion of the wheel surface of the driving wheel are fixed to each other to form an integrated piece with an 8-shaped appearance, so that the transmission member can further stably transmit the driving force of the driving motor to the driving member.

[0016] Furthermore, the wheel diameter of the driving wheel is larger than that of the second transmission gear, so that the rotation of the driving member can be more stable, and further promote the driving member to push the water tank smoothly.

[0017] Furthermore, the wheel surface of the pusher is a smooth surface, and a push window is provided on the rear side wall of the water tank seat, through which the wheel surface of the push wheel can abut against the rear end surface of the water tank. On the one hand, the pusher can effectively push the water tank, and on the other hand, the wheel surface of the pusher can be prevented from causing wear on the surface of the water tank, thereby further extending the service life of the water tank.

[0018] Furthermore, the left and right ends of the rear side of the pusher are respectively provided with a first stopper and a second stopper for limiting the pusher, and at the second angle or the third angle, the rear end of the pusher abuts against the corresponding stopper, so that the pusher can be more stably limited at the second angle or the third angle, which can ensure that the pusher can be correctly located at the second angle or the third angle when the water tank starts to be pushed out, thereby ensuring that the water tank is pushed out smoothly, and can ensure that the pusher can be correctly located at the second angle or the third angle when the water tank is pushed into place, thereby ensuring that the water tank can be pushed in smoothly.

[0019] Furthermore, each of the stoppers is an arc-shaped vertical retaining wall, and each of the stoppers matches the wheel surface of the driving wheel, so that the driving member can be more stably limited, and each of the stoppers can be prevented from causing wear to the wheel surface of the driving member, thereby extending the service life of the driving member.

[0020] Furthermore, the first transmission gear is a sector gear, and a first protrusion is protruding downward from the bottom of the sector gear along one side of its rotation direction, and the first limiting member and the second limiting member are both limiting blocks that can abut against the first protrusion. Thus, the first transmission gear can be better limited by the first limiting member and the second limiting member, and the pushing member can be better limited.

[0021] Furthermore, the first convex block includes a first convex wall and a second convex wall located inside the first convex wall, the first stopper is located on one side of the first transmission gear and the second stopper is located below the first transmission gear, and the first convex wall can abut against the first stopper, while the second convex wall can abut against the second stopper. Thus, the stopper effect on the first transmission gear can be further improved, that is, the stopper effect on the transmission member can be further improved, and then the stopper effect on the pusher can be improved.

[0022] Furthermore, it also includes a first limit micro switch and a second limit micro switch, and the top surface of the first transmission gear is respectively fixed with a first triggering protrusion and a second triggering protrusion at both ends along the rotation direction thereof, and when the first protrusion abuts against the first limit member, the first triggering protrusion triggers the first limit micro switch, and when the first protrusion abuts against the second limit member, the second triggering protrusion triggers the second limit micro switch. In this way, the position of the first transmission gear can be accurately obtained through the first limit micro switch and the second limit micro switch, and then it is known that the pusher is at the second angle or the third angle, that is, it is known that the water tank can be reliably known whether the water tank is pushed into place.

[0023] Furthermore, it also includes a motor bracket for mounting the driving motor, the motor bracket is in the shape of a cover and is horizontally mounted on the driving motor, the transmission member, the pusher, and each limit micro switch are respectively mounted on the top surface of the motor bracket, and each limit block is respectively convexly mounted on the top surface of the motor bracket. Thus, the internal structure of the automatic water tank ejection structure is simple and the arrangement of related components is convenient.

[0024] Furthermore, a micro switch is installed on the back of the water tank seat. When the water tank is pushed into place, the water tank can trigger the micro switch, so that it can be effectively known whether the water tank is pushed into place, and then it can be ensured that the water tank can be pushed out smoothly during the next pushing process.

[0025] The technical solution adopted to further solve the third technical problem mentioned above is: a cooking device, characterized by having the automatic water tank ejection structure as described above.

[0026] Compared with the prior art, the advantages of the present invention are: at the first angle, the connecting line AB is parallel to the extension direction of the water tank, and in this state, the water tank is pushed out by the pusher; and at the second angle or the third angle, the connecting line AB intersects with the extension direction of the water tank to form the second angle or the third angle, and in this state, a gap is left between the pusher and the tail of the water tank to allow the water tank to be pushed into the water tank seat under the action of an external force. It can be seen that the pusher in the present invention can push out the water tank regardless of whether it moves along the second angle, the first angle, and the third angle in sequence or moves along the third angle, the first angle, and the second angle in sequence. The pusher does not need to be reset after the water tank is pushed out, thereby simplifying the action process and control steps of pushing out the water tank, thereby extending the service life of the water tank pushing structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural diagram of a cooking device in an embodiment of the present invention;

[0028] Figure 2 A schematic diagram of a partial structure of a cooking device according to an embodiment of the present invention;

[0029] Figure 3 It is a structural schematic diagram of the automatic water tank ejection structure in an embodiment of the present invention;

[0030] Figure 4 for Figure 3 A schematic diagram of the structure in another direction;

[0031] Figure 5 It is a partial structural schematic diagram of the automatic water tank ejection structure in an embodiment of the present invention;

[0032] Figure 6 Another partial structural diagram of the automatic water tank ejection structure in an embodiment of the present invention (the water tank and the water tank seat are omitted);

[0033] Figure 7 It is a partial structural exploded view of the automatic water tank ejection structure in which the water tank and the water tank seat are omitted in the embodiment of the present invention;

[0034] Figure 8 It is another partial structural diagram of the automatic water tank ejection structure in the embodiment of the present invention (the water tank, water tank seat and each limit micro switch are omitted);

[0035] Fig. 9 It is a structural schematic diagram of a motor bracket in an embodiment of the present invention;

[0036] Fig.10Schematic diagram of the structure of the first transmission gear in an embodiment of the present invention. DETAILED DESCRIPTION

[0037] The present invention is further described in detail below with reference to the accompanying drawings.

[0038] like Figures 1 to 10 As shown, a cooking device has a steaming function, such as an electric steamer, a steam-bake-in-one machine or a steam-microwave-in-one machine. The cooking device includes a water tank automatic push-out structure, which includes a water tank 31 and a water tank seat 32 for accommodating the water tank 31. The water tank seat 32 has an opening for the water tank 31 to enter and exit, and the water tank 31 can be relatively slidably connected to the water tank seat 32 and can be extended from the opening of the water tank seat 32. Specifically, in the present embodiment, the cooking device comprises an inner pot 1 with an opening on the front side and a door body 2 capable of covering the opening of the inner pot 1, an upper mounting plate 21 is arranged above the inner pot 1, an automatic ejection structure of the water tank 31 is arranged on the upper surface of the upper mounting plate 21 along the front-to-back direction, and a control panel 22 extending along the left-to-right direction is vertically arranged above the door body 2, a water tank opening 221 is provided at one end of the control panel 22, the water tank 31 can extend from the water tank opening 221 along the water tank seat 32, and the front end surface of the water tank 31 is a water tank panel 311, and when the water tank 31 is pushed into place, the water tank panel 311 is embedded in the water tank opening 221, as shown in FIG. Figure 1 and Figure 2 shown.

[0039] Furthermore, a driving mechanism, a transmission member 5 and a pusher 6 are respectively arranged on the upper surface of the upper mounting plate 21 at the rear side of the water tank seat 32. The pusher 6 is used to push the water tank 31 forward relative to the water tank seat 32 along the direction of pushing the water tank 31. The transmission member 5 is used to link the driving mechanism and the pusher 6. The pusher 6 can reciprocate back and forth around the first central axis A extending vertically under the action of the driving mechanism, and as the pusher 6 rotates, on the horizontal plane, the end B of the pusher 6 farthest from the central axis A and the central axis A form a connecting line AB (such as Figure 6 The second angle 92, the first angle 91 and the third angle 93 are formed in sequence with the extension direction of the water tank 31 (as shown in FIG. Figure 8 As shown). In the first angle 91, the line AB is parallel to the extension direction of the water tank 31. In this state, the water tank 31 is pushed out by the pusher 6. In the second angle 92 or the third angle 93, the line AB intersects with the extension direction of the water tank 31 to form the second angle 92 or the third angle 93. In this state, a gap is left between the pusher 6 and the tail of the water tank 31, so that the water tank 31 can be pushed into the water tank seat 32 under the action of an external force. Figure 3 and Figure 4 In this embodiment, the driving mechanism is a driving motor 4.

[0040] It can be seen that the pushing member 6 in the present invention can push out the water tank 31 regardless of whether it moves along the second angle 92, the first angle 91 and the third angle 93 in sequence or moves along the third angle 93, the first angle 91 and the second angle 92 in sequence. The pushing member 6 does not need to be reset after the water tank 31 is pushed out, thereby simplifying the action process and control steps of pushing out the water tank 31, thereby extending the service life of the water tank pushing structure.

[0041] There are many specific motion trajectories of the pusher 6. In this embodiment, preferably, the pusher 6 can rotate back and forth between the second angle 92 and the third angle 93 with the first angle 91 as the center, and when the drive motor 4 rotates clockwise, the pusher 6 rotates clockwise from the second angle 92 to the third angle 93 to push the water tank 31, and when the drive motor 4 rotates counterclockwise, the pusher 6 rotates counterclockwise from the third angle 93 to the second angle 92 to push the water tank 31, so that the movement of the pusher 6 between various positions can be better realized, and the movement direction of the pusher 6 along various positions can be controlled by controlling the rotation direction of the drive motor 4. Further, the second angle 92 and the third angle 93 are equal in size. In this embodiment, at the second angle 92 or the third angle 93, the connecting line AB is perpendicular to the extension direction of the water tank 31. Specifically, the first angle 91 extends in the front-to-back direction, and the second angle 92 and the third angle 93 extend in the left-right direction respectively.

[0042] Furthermore, when the driving motor 4 rotates clockwise, the transmission member 5 can move in one direction (clockwise in this embodiment) and drive the pushing member 6 to rotate clockwise, and when the driving motor 4 rotates counterclockwise, the transmission member 5 can move in another direction (counterclockwise in this embodiment) and drive the pushing member 6 to rotate counterclockwise. A limiting member 7 for limiting the transmission member 5 is also included. When the transmission member 5 abuts against the limiting member 7, the water tank 31 is pushed out in place and the driving motor 4 is blocked and stops rotating. The driving motor 4 stops rotating after the water tank 31 is pushed out and rotates in the opposite direction when the water tank 31 is pushed out next time, that is, during the process of pushing out the water tank 31, the driving motor 4 only needs to rotate in one direction without reversing, thereby extending the service life of the driving motor 4, and further extending the service life of the automatic water tank pushing out structure and the cooking device. Furthermore, the above-mentioned limiter 7 includes a first limiter 71 and a second limiter 72, and the above-mentioned transmission member 5 reciprocates between the first limiter 71 and the second limiter 72 under the action of the above-mentioned drive motor 4, and as the transmission member 5 rotates, the above-mentioned pusher 6 rotates to push out the water tank 31, and, at the above-mentioned second angle 92, the above-mentioned transmission member 5 abuts against the first limiter 71, and at the third angle 93, the above-mentioned transmission member 5 abuts against the second limiter 72, and the above-mentioned drive motor 4 stops rotating in both states. Therefore, the movement of the pusher 6 can be better controlled by controlling the movement of the transmission member 5, and the problem that the water tank 31 cannot be smoothly pushed out can be better avoided.

[0043] In order to avoid the problem that the water tank 31 cannot be pushed out smoothly due to the incorrect initial position of the pusher 6, in this embodiment, the drive motor 4 is blocked before the water tank 31 is pushed out, and the drive motor 4 immediately rotates in the opposite direction. In this way, the problem that the water tank 31 cannot be pushed out smoothly due to the initial position of the pusher 6 not being at the second angle 92 or the third angle 93 can be avoided. Specifically, when the transmission member 5 moves from any position between the first limit member 71 and the second limit member 72 to abut against any limit member, the drive motor 4 immediately rotates in the opposite direction, so that the movement of the pusher 6 can be better controlled by controlling the movement of the transmission member 5, and the problem that the water tank 31 cannot be pushed out smoothly can be better avoided.

[0044] The above-mentioned transmission member 5 can be implemented in a variety of specific ways. In the present embodiment, specifically, the transmission member 5 includes a first transmission gear 51 installed on the output shaft of the driving motor 4 and a second transmission gear 52 meshing with the first transmission gear 51, and the above-mentioned pushing member 6 is a pushing wheel linked to the above-mentioned second transmission gear 52, and the pushing wheel can rotate around the central axis of the above-mentioned second transmission gear 52, and the central axis of the second transmission gear 52 is the above-mentioned first central axis A, the above-mentioned first limit member 71 and the second limit member 72 are arranged along the rotation trajectory of the above-mentioned first transmission gear 51, and when the above-mentioned pushing wheel is located at the above-mentioned second angle 92 or the third angle 93, the above-mentioned transmission member 5 is offset against the corresponding limit member, so that the transmission member 5 can more stably transmit the driving force of the driving motor 4 to the transmission member 5, and by controlling the rotation of the first transmission gear 51 in the transmission member 5, the control of the rotation trajectory of the pushing member 6 can be more reliably achieved. Preferably, the second transmission gear 52 and the pusher 6 are arranged in parallel in the horizontal direction, and the corresponding parts of the wheel surfaces of the two are fixed to each other to form an integral part with an 8-shaped appearance, so that the transmission member 5 can further stably transmit the driving force of the drive motor 4 to the pusher 6. Further preferably, the wheel diameter of the pusher 6 is larger than the second transmission gear 52, so that the rotation of the pusher 6 can be more stable, and then the smooth pushing of the water tank 31 by the pusher 6 can be further promoted. In addition, the wheel surface of the pusher 6 is a smooth surface, and a pushing window 321 is provided on the rear side wall of the water tank seat 32, and the wheel surface of the pusher 6 can be against the rear end surface of the water tank 31 through the pushing window 321. On the one hand, the effective pushing of the water tank 31 by the pusher 6 can be achieved, and on the other hand, the wear of the surface of the water tank 31 caused by the wheel surface of the pusher 6 can be avoided, so that the service life of the water tank 31 can be further extended.

[0045] In this embodiment, the left and right ends of the rear side of the pushing member 6 are respectively provided with a first stop member 411 and a second stop member 412 for limiting the position of the pushing member 6. When the pushing member 6 is located at the second angle 92 or the third angle 93, the rear end of the pushing member 6 abuts against the corresponding stop member. Figures 6 to 9 As shown. Thus, the pusher 6 can be more stably limited at the second angle 92 or the third angle 93. On the one hand, it can ensure that when the water tank 31 starts to be pushed out, the pusher 6 can be correctly located at the second angle 92 or the third angle 93, thereby ensuring that the water tank 31 is pushed out smoothly. On the other hand, it can ensure that when the water tank 31 is pushed into place, the pusher 6 can be correctly located at the second angle 92 or the third angle 93, thereby ensuring that the water tank 31 can be pushed in smoothly. Specifically, in this embodiment, each of the above-mentioned stoppers is a circular arc-shaped vertical retaining wall, such as Fig. 9As shown, each stop member matches the wheel surface of the above-mentioned push member 6 respectively, so that the push member 6 can be limited more stably. In addition, it can also prevent each stop member from causing wear to the wheel surface of the push member 6, thereby extending the service life of the push member 6.

[0046] Furthermore, the first transmission gear 51 is a sector gear, and a first protrusion 511 is protruded downward from the bottom of the sector gear along one side of the rotation direction, and the first limiting member 71 and the second limiting member 72 are both limiting blocks that can abut against the first protrusion 511, so that the first transmission gear 51 can be better limited by the first limiting member 71 and the second limiting member 72, and thus the pushing member 6 can be better limited. Fig.10 As shown, the first convex block 511 includes a first convex wall 5111 and a second convex wall 5112 located inside the first convex wall 5111, the first stopper 71 is located at one side of the first transmission gear 51 and the second stopper 72 is located below the first transmission gear 51, and the first convex wall 5111 can abut against the first stopper 71, while the second convex wall 5112 can abut against the second stopper 72. Thus, the limiting effect on the first transmission gear 51 can be further improved, that is, the limiting effect on the transmission member 5 can be further improved, and then the limiting effect on the pusher can be improved.

[0047] In addition, a first limit micro switch 82 and a second limit micro switch 83 are also included, and a first triggering protrusion 512 and a second triggering protrusion 513 are respectively fixed to the top surface of the first transmission gear 51 along the rotation direction of the two ends thereof, and when the first protrusion 511 abuts against the first limit member 71, the first triggering protrusion 512 triggers the first limit micro switch 82, and when the first protrusion 511 abuts against the second limit member 72, the second triggering protrusion 513 triggers the second limit micro switch 83. In this way, the position of the first transmission gear 51 can be accurately obtained through the first limit micro switch 82 and the second limit micro switch 83, and then it can be known that the pusher 6 is located at the second angle 92 or the third angle 93, and it can be reliably known whether the water tank 31 is pushed into place. In addition, a micro switch 81 is installed on the back of the water tank seat 32. When the water tank 31 is pushed into place, the water tank 31 can trigger the micro switch 81, so that it can be effectively known whether the water tank 31 is pushed into place, and then it can be ensured that the water tank 31 can be pushed out smoothly during the next pushing process.

[0048] Specifically, in the present embodiment, the driving motor 4 is mounted on the upper surface of the upper mounting plate 21, and the automatic water tank ejection structure further comprises a motor bracket 41 for mounting the driving motor 4, the motor bracket 41 has a cover shape and is horizontally mounted on the driving motor 4, and the driving motor 4 is fixed to the inner top surface of the motor bracket 41 by fasteners, and the transmission member 5, the pushing member 6, and each limit micro switch are respectively mounted on the outer top surface of the motor bracket 41, and each limit block and each stop member are respectively protruded on the top surface of the motor bracket 41, thereby making the internal structure of the automatic water tank ejection structure simple and facilitating the arrangement of related components.

[0049] The working process of the present invention is as follows:

[0050] At the second angle 92 or the third angle 93, it is in the initial state (at this time, the water tank 31 is in the pushed-in state, and the distance between the tail end of the water tank 31 and the end B of the pushing member 6 is 2 mm), the driving motor 4 rotates (if the pushing member 6 is at the second angle 92, it rotates counterclockwise, and if it is at the third angle 93, it rotates clockwise), and the first transmission gear 51 rotates from one of the limit members toward the other limit member (when the driving motor 4 rotates clockwise, the first limit member 71 rotates to the second limit member 72; and when the driving motor 4 rotates counterclockwise, the second limit member 72 rotates toward the first limit member 71), the second transmission gear 52 rotates and drives the pushing member 6 to rotate synchronously, and the pushing member 6 rotates from the second angle 92 or the third angle 93 to the first angle 91. At this time, the pushing member 6 is against the tail end of the water tank 31, and the water tank 31 is pushed out. At the same time, the pushing member 6 rotates to the third angle 93 or the second angle 92, and the user can add water to the water tank 31. After the water is added, the water tank 31 is pushed backwards. When the in-place micro switch 81 is triggered, the water tank 31 is pushed into place. At this time, the pushing member 6 is limited at the third angle 93 or the second angle 92.

[0051] When the water tank 31 is pushed out for the next time, the drive motor 4 rotates in the opposite direction relative to the last time the water tank 31 was pushed out, and the push member 6 rotates from the third angle 93 or the second angle 92 to the first angle 91 and continues to rotate from the first angle 91 toward the second angle 92 or the third angle 93, thereby realizing the next push out of the water tank 31.

Claims

1. A water tank automatic ejection structure, comprising a water tank (31) and a water tank seat (32) for accommodating the water tank (31), the water tank seat (32) having an opening for the water tank (31) to enter and exit, and the water tank (31) can be relatively slidably connected to the water tank seat (32) and can be extended from the opening of the water tank seat (32), characterized in that: The invention also comprises a pushing member (6) and a driving mechanism arranged behind the water tank (31) and used for pushing the water tank (31) forward. The pushing member (6) can reciprocate back and forth around a first central axis (A) extending vertically under the action of the driving mechanism. With the rotation of the pushing member (6), on a horizontal plane, a connecting line (AB) formed by connecting an end (B) of the pushing member (6) farthest from the central axis (A) and the central axis (A) and the extension direction of the water tank (31) reciprocate in sequence to form a second angle (92), a first angle (91) and a third angle (93). Wherein, at the first angle (91), the connecting line (AB) is parallel to the extension direction of the water tank (31), and in this state, the water tank (31) is pushed out under the action of the pushing member (6); and at the second angle (92) or the third angle (93), the connecting line (AB) intersects with the extension direction of the water tank (31) to form the second angle (92) or the third angle (93), and in this state, a gap is left between the pushing member (6) and the tail of the water tank (31), so that the water tank (31) can be pushed into the water tank seat (32) under the action of an external force; The second angle (92) and the third angle (93) are equal in magnitude; A micro switch (81) is installed on the back of the water tank seat (32). When the water tank (31) is pushed into place, the rear end of the water tank (31) triggers the micro switch (81).

2. The automatic water tank ejection structure according to claim 1, characterized in that: At the second angle (92) or the third angle (93), the connecting line (AB) is perpendicular to the extension direction of the water tank (31).

3. The automatic water tank ejection structure according to claim 1 or 2, characterized in that: The driving mechanism is a driving motor (4), further comprising a transmission member (5) for linking the driving motor (4) and a pushing member (6), and a limiting member (7) for limiting the position of the transmission member (5); at the second angle (92) or the third angle (93), the transmission member (5) abuts against the limiting member (7), and the driving motor (4) stops rotating.

4. The automatic water tank ejection structure according to claim 3, characterized in that: The limiting member (7) comprises a first limiting member (71) and a second limiting member (72), and the transmission member (5) reciprocates between the first limiting member (71) and the second limiting member (72) under the action of the driving motor (4). As the transmission member (5) rotates, the pushing member (6) rotates to push the water tank (31) out, and at the second angle (92), the transmission member (5) abuts against the first limit member (71), and at the third angle (93), the transmission member (5) abuts against the second limit member (72), and in both states, the driving motor (4) stops rotating.

5. The automatic water tank ejection structure according to claim 4, characterized in that: The transmission member (5) comprises a first transmission gear (51) mounted on the output shaft of the driving motor (4) and a second transmission gear (52) meshing with the first transmission gear (51), the pushing member (6) is a pushing wheel linked to the second transmission gear (52), and the central axis of the second transmission gear (52) is the first central axis (A), and the first limiting member (71) and the second limiting member (72) are respectively arranged along the rotation trajectory of the first transmission gear (51).

6. The automatic water tank ejection structure according to claim 5, characterized in that: The second transmission gear (52) and the corresponding parts of the wheel surface of the pushing member (6) are fixed to each other to form an integrated member with an 8-shaped appearance.

7. The automatic water tank ejection structure according to claim 6, characterized in that: The wheel diameter of the pushing member (6) is larger than that of the second transmission gear (52).

8. The automatic water tank ejection structure according to claim 6, characterized in that: The wheel surface of the pushing member (6) is a smooth surface, and a pushing window (321) is provided on the rear side wall of the water tank seat (32), so that the wheel surface of the pushing member (6) can abut against the rear end of the water tank (31) through the pushing window (321).

9. The automatic water tank ejection structure according to claim 5, characterized in that: A first stop member (411) and a second stop member (412) for limiting the position of the pushing member (6) are respectively provided at the left and right ends of the rear side of the pushing member (6); at the above-mentioned second angle (92) or third angle (93), the rear end of the pushing member (6) abuts against the corresponding stop member.

10. The automatic water tank ejection structure according to claim 9, characterized in that: Each of the stop members is an arc-shaped vertical retaining wall, and the shape of each stop member matches the wheel surface of the pushing member (6).

11. The automatic water tank ejection structure according to claim 5, characterized in that: The first transmission gear (51) is a sector gear, and a first protrusion (511) is protruding downwards from the bottom of the sector gear along one side of its rotation direction, and the first limiting member (71) and the second limiting member (72) are both limiting blocks that can abut against the first protrusion (511).

12. The automatic water tank ejection structure according to claim 11, characterized in that: The first protrusion (511) comprises a first protruding wall (5111) and a second protruding wall (5112) located on the inner side of the first protruding wall (5111); the first limiting member (71) is located on one side of the first transmission gear (51) and the second limiting member (72) is located below the first transmission gear (51); the first protruding wall (5111) can abut against the first limiting member (71) and the second protruding wall (5112) can abut against the second limiting member (72).

13. The automatic water tank ejection structure according to claim 12, characterized in that: The invention also comprises a first limit micro switch (82) and a second limit micro switch (83), and a first triggering protrusion (512) and a second triggering protrusion (513) are respectively fixed to the top surface of the first transmission gear (51) at both ends along the rotation direction thereof, and when the first protrusion (511) abuts against the first limit member (71), the first triggering protrusion (512) triggers the first limit micro switch (82), and when the first protrusion (511) abuts against the second limit member (72), the second triggering protrusion (513) triggers the second limit micro switch (83).

14. The automatic water tank ejection structure according to claim 13, characterized in that: The invention also comprises a motor bracket (41) for mounting the driving motor (4), the motor bracket (41) having a cover-like shape and being horizontally mounted on the driving motor (4), the transmission member (5), the push member (6) and each limit micro switch being mounted on the top surface of the motor bracket (41), and each limit block and each stop member being protrudingly mounted on the top surface of the motor bracket (41).

15. A cooking device, characterized in that: The invention has a water tank automatic pushing-out structure as claimed in any one of claims 1 to 14.

Images