Cooking utensil cover opening and closing mechanism and electric pressure cooker

Abstract

The utility model relates to the technical field of cooking utensils, and discloses a cooking utensil cover opening and closing mechanism and an electric pressure cooker. The cooking utensil cover opening and closing mechanism comprises: a pot cover assembly and an inner pot, the pot cover assembly comprises a shell and a pot cover buckle ring rotatably connected to the shell, the pot cover buckle ring is locked / released with the inner pot through its own circumferential rotation, a driving device for driving the pot cover buckle ring to rotate circumferentially is arranged on the shell, the driving device comprises a transmission rod and a driving part for driving the transmission rod, the transmission rod is connected to the pot cover buckle ring to drive the pot cover buckle ring to rotate circumferentially. The utility model is provided with a first micro switch and a second micro switch, realizing the function of sensing the pot cover buckle ring to open and close in place, avoiding the problem of the pot cover buckle ring not opening and closing in place during use; at the same time, the heavy hammer can be linked to open the exhaust in the process of opening the lid, avoiding the excessive pressure in the inner pot to flush the pot cover assembly when opening the lid, and the use is safe and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of cooking utensils, in particular to a cooking utensil cover opening and closing mechanism and an electric pressure cooker. Background Art

[0002] Currently, the electric pressure cookers with induction devices on the market mainly use reed switches and magnets to sense opening and closing. This structure has the following problems: 1. The AT value deviation of the reed switch needs to be controlled; 2. The magnetic value deviation of the magnet needs to be controlled, and the problem of magnetic force weakening during long-term high-temperature use; 3. When the deviations of both the AT value of the reed switch and the magnetic value of the magnet are large or the magnetic force of the magnet is weak, the lid buckle may not open and close properly, such as the reed switch sensing in advance and the lid buckle has not been fully closed, or the reed switch sensing in advance and the lid buckle has not been fully opened, the lid cannot be opened normally, etc., resulting in a poor user experience; in addition, when the reed switch senses in advance and the lid buckle has not been fully closed, heating the pot body at this time may cause the lid buckle to be opened by high pressure, and the safety of use is low. Utility Model Content

[0003] To solve at least one aspect of the above problems, the utility model provides a cooking utensil lid opening and closing mechanism, comprising: a pot lid assembly and an inner pot, the pot lid assembly comprising a shell and a pot lid buckle ring rotatably connected to the shell, the pot lid buckle ring being locked / released with the inner pot by its own circumferential rotation, a driving device for driving the pot lid buckle ring to rotate circumferentially is provided on the shell, the driving device comprises a transmission rod and a driving part for driving the transmission rod, the transmission rod is connected to the pot lid buckle ring to drive the pot lid buckle ring to rotate circumferentially, a first micro switch and a second micro switch for controlling the operation of the driving part are provided on the shell, and the transmission rod drives the pot lid buckle ring to rotate circumferentially to have a position to be opened and a position to close the lid;

[0004] When in the ready-to-open position, the pot lid buckle ring and the inner pot are released, and the transmission rod touches the first microswitch to control the driving part to stop running; when in the closed position, the pot lid buckle ring and the inner pot are locked, and the transmission rod touches the second microswitch to control the driving part to stop running. The utility model is provided with a first microswitch and a second microswitch to realize the function of sensing the pot lid buckle ring to be opened and closed in place, avoiding the problem of the pot lid buckle ring not being opened and closed in place during use; at the same time, the heavy hammer can be linked to open the exhaust during the opening process to avoid the pot lid assembly being opened due to excessive pressure in the inner pot when the lid is opened, and the use is safe and reliable.

[0005] Optionally, the transmission rod is a rocker rod rotatably connected to the shell, and the transmission rod swings between the first micro switch and the second micro switch. A first touch portion and a second touch portion are respectively formed on both sides of the transmission rod, and the first touch portion is used to touch the first micro switch, and the second touch portion is used to touch the second micro switch.

[0006] Optionally, a convex column is provided on the pot cover buckle ring, a slot corresponding to the convex column is provided on the transmission rod, and a first sliding groove for the convex column to slide is provided on the shell.

[0007] Optionally, the driving part is a motor, and the rotating output end of the driving part is fixedly connected to a turntable, a guide column is eccentrically arranged on the turntable, a second slide groove corresponding to the guide column is arranged on the transmission rod, and the guide column is movably placed in the second slide groove.

[0008] Optionally, the driving part is a reduction motor, and the reduction motor includes a motor body and a gear reduction box.

[0009] Optionally, a weight device is provided on the shell, and the weight device includes an exhaust pipe, a weight and a liftable weight push rod, the weight is placed at the upper end of the exhaust pipe, the weight blocks the upper port of the exhaust pipe under the action of its own gravity, the lower port of the exhaust pipe is connected to the inner cavity of the inner pot, the weight push rod is used to push the weight upward to open the upper port of the exhaust pipe for exhaust, and a linkage component is provided between the transmission rod and the weight push rod. When the transmission rod drives the pot cover buckle ring to rotate circumferentially toward the position to be opened, the transmission rod drives the weight push rod to move upward through the linkage component to push the weight upward.

[0010] Optionally, the linkage component includes a transmission plate slidably arranged on the shell, the transmission plate is provided with a groove corresponding to the weight push rod, and the groove is provided with a guide inclined surface for lifting the weight push rod.

[0011] Optionally, a limiting bolt is provided on the shell, and a third sliding groove slidably matched with the limiting bolt is provided on the transmission plate, the third sliding groove extends along the sliding direction of the transmission plate, a cylinder is provided on the transmission rod, and a fourth sliding groove corresponding to the cylinder is provided on the transmission plate, and the cylinder is movably placed in the fourth sliding groove.

[0012] Optionally, an elastic member is provided between the weight push rod and the housing, and the elastic member is used to drive the weight push rod to reset downward.

[0013] Compared with the prior art, the cooking utensil opening and closing lid mechanism of the utility model is provided with a first micro switch and a second micro switch, which realize the function of sensing the opening and closing of the pot lid buckle ring, avoiding the problem of the pot lid buckle ring not being opened and closed in place during use; at the same time, the heavy hammer can be linked to open the exhaust during the opening process to avoid the excessive pressure in the inner pot to break the pot lid assembly when the lid is opened, and the use is safe and reliable; the driving part is a reduction motor, and the reduction motor includes a motor body and a gear reduction box, so that the output torque of the driving part is sufficient and the transmission is more stable and powerful; the shell is provided with a first micro switch and a second micro switch for controlling the operation of the driving part, and the micro switches are sensitive in action and can sense the opening and closing of the lid sensitively and reliably.

[0014] In addition, the utility model provides an electric pressure cooker, comprising the cooking utensil cover opening and closing mechanism as described above.

[0015] Compared with the prior art, the electric pressure cooker described in the present invention has the same advantages as the above-mentioned cooking utensil cover opening and closing mechanism over the prior art, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the opening and closing cover mechanism of the cooking utensil of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the first rotating engaging portion of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the pot cover buckle ring of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the transmission rod part of the utility model;

[0020] Figure 5 for Figure 4 Enlarged view of part A in the middle;

[0021] Figure 6 It is a cross-sectional view of the cooking utensil opening and closing mechanism of the utility model when it is in the closed position;

[0022] Figure 7 for Figure 6 Enlarged view of middle part B;

[0023] Figure 8 It is a cross-sectional view of the cover opening and closing mechanism of the cooking utensil of the utility model in the position to be opened;

[0024] Fig. 9 for Figure 8 Enlarged view of the middle C part;

[0025] Fig.10 This is a structural schematic diagram of the transmission plate portion of the cover opening and closing mechanism of the cooking utensil of the utility model;

[0026] Fig.11 It is a structural schematic diagram of the transmission rod part of the cover opening and closing mechanism of the cooking utensil of the utility model;

[0027] The names of the components corresponding to the various reference numerals in the figure are: 1 is a shell, 101 is a first slide groove, 2 is a pot cover buckle ring, 21 is a convex column, 22 is a second rotating clamping part, 3 is a transmission rod, 31 is a first touch part, 32 is a second touch part, 33 is a clamping groove, 34 is a second slide groove, 35 is a cylinder, 4 is a driving part, 41 is a motor, 42 is a gear reduction box, 5 is a first micro switch, 6 is a second micro switch, 7 is a turntable, 71 is a guide column, 81 is an exhaust pipe, 82 is a heavy hammer, 83 is a heavy hammer push rod, 831 is a top, 9 is a transmission plate, 91 is a groove, 92 is a guide inclined surface, 93 is a third slide groove, 94 is a fourth slide groove, 10 is an inner pot, 100 is a first rotating clamping part, 11 is a limit bolt, and 12 is an elastic member. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0029] In the description of the present invention, it should be understood that the terms "upper" and "lower" and the like indicate positions or location relationships that are based on the positions or location relationships when the product is in normal use.

[0030] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0031] See also Figure 1-Figure 11The embodiment of the utility model provides a cooking utensil lid opening and closing mechanism, comprising: a pot lid assembly and an inner pot 10, the pot lid assembly comprising a shell 1 and a pot lid buckle ring 2 rotatably connected to the shell 1, the pot lid buckle ring 2 is locked / released with the inner pot 10 by its own circumferential rotation, the pot lid assembly cannot be opened when the lock is released, and the pot lid assembly can be opened when the lock is released; the inner pot 10 is provided with a first rotating clamping portion 100, and the pot lid buckle ring 2 is provided with a second rotating clamping portion 22 corresponding to the first rotating clamping portion 100; the shell 1 is provided with a A driving device for driving the pot cover buckle ring 2 to rotate circumferentially, the driving device comprises a transmission rod 3 and a driving part 4 for driving the transmission rod 3, the driving part 4 can be controlled to operate by a control button on the cooking utensil, the transmission rod 3 is connected to the pot cover buckle ring 2 to drive the pot cover buckle ring 2 to rotate circumferentially, a first micro switch 5 and a second micro switch 6 for controlling the operation of the driving part 4 are arranged on the housing 1, the micro switches are sensitive in action, and the sensing of the opening and closing of the lid is sensitive and reliable; when the transmission rod 3 drives the pot cover buckle ring 2 to rotate circumferentially, there is a position to be opened and a position to close the lid;

[0032] When in the position to open the lid, the lid buckle 2 and the inner pot 10 are released, and the transmission rod 3 touches the first microswitch 5. At this time, the first microswitch 5 transmits an electrical signal to the driving part 4 to control the driving part 4 to stop running. At this time, the user can open the lid assembly; when in the closed position, the lid buckle 2 and the inner pot 10 are locked, and the transmission rod 3 touches the second microswitch 6. At this time, the second microswitch 6 transmits an electrical signal to the driving part 4 to control the driving part 4 to stop running. At this time, the function of closing the lid is completed; the utility model is provided with a first microswitch and a second microswitch to realize the function of sensing the opening and closing of the lid buckle, avoiding the problem of the lid buckle not being opened and closed during use; at the same time, the heavy hammer can be linked to open the exhaust during the opening process to avoid the lid assembly being opened due to excessive pressure in the inner pot when the lid is opened, and the use is safe and reliable.

[0033] See also Figure 1-Figure 5The transmission rod 3 is a swing rod rotatably connected to the shell 1. The transmission rod 3 swings between the first micro switch 5 and the second micro switch 6. The first micro switch 5 and the second micro switch 6 are touched by the rotation and swing of the transmission rod 3; a first touch portion 31 and a second touch portion 32 are formed on both sides of the transmission rod 3, respectively. The first touch portion 31 is used to touch the first micro switch 5, and the second touch portion 32 is used to touch the second micro switch 6; a convex column 21 is provided on the pot cover buckle 2, and a card slot 33 corresponding to the convex column 21 is provided on the transmission rod 3, so that the pot cover buckle 2 can be driven to rotate circumferentially when the transmission rod 3 swings; a slot for the convex column 21 to slide is provided on the shell 1 The first slide groove 101 is a waist-shaped groove; the driving part 4 is a motor, and the rotating output end of the driving part 4 is fixedly connected to the turntable 7, and a guide column 71 is eccentrically arranged on the turntable 7, and the guide column 71 is cylindrical; the transmission rod 3 is provided with a second slide groove 34 corresponding to the guide column 71, and the second slide groove 34 extends along the length direction of the transmission rod 3; the guide column 71 is movably placed in the second slide groove 34, and the transmission rod 3 is driven to swing toward the first microswitch 5 or the second microswitch 6 through the forward and reverse rotation of the motor; the driving part 4 is a reduction motor, and the reduction motor includes a motor body 41 and a gear reduction box 42, so that the output torque of the driving part 4 is sufficient and the transmission is more stable and powerful.

[0034] See also Figure 4-Figure 11, a heavy hammer device is arranged on the shell 1, and the heavy hammer device includes an exhaust pipe 81, a heavy hammer 82 and a liftable heavy hammer push rod 83, the heavy hammer 82 is placed at the upper end of the exhaust pipe 81, and the heavy hammer 82 blocks the upper end of the exhaust pipe 81 under the action of its own gravity, and the lower end of the exhaust pipe 81 is connected with the inner cavity of the inner pot 10, and the heavy hammer push rod 83 is used to push the heavy hammer 82 upward to open the upper end of the exhaust pipe 81 for exhaust, and a linkage component is arranged between the transmission rod 3 and the heavy hammer push rod 83. When the transmission rod 3 drives the pot cover buckle ring 2 to rotate circumferentially toward the position to be opened, the transmission rod 3 drives the heavy hammer push rod 83 to move upward through the linkage component to push the heavy hammer 82 upward for exhaust; the linkage heavy hammer pushes to exhaust in the process of opening the cover to avoid the excessive pressure in the inner pot when opening the cover to open the pot cover assembly, which is safe and reliable to use; the linkage component includes a transmission plate 9 slidably arranged on the shell 1, and the transmission plate 9 is provided with a groove 91 corresponding to the heavy hammer push rod 83, and the groove 91 is provided with a groove for lifting the heavy hammer The guide bevel 92 of the push rod 83, when in the closed position, the top 831 of the heavy hammer push rod 83 is placed in the groove 91, at this time the heavy hammer 82 is placed on the upper end of the exhaust pipe 81, and the heavy hammer 82 blocks the upper end of the exhaust pipe 81 under the action of its own gravity; when the transmission rod 3 swings toward the second micro switch 6, it drives the transmission plate 9 to slide, and the transmission plate 9 pushes the top 831 and the entire heavy hammer push rod 83 upward through the guide bevel 92 to exhaust; a limiting bolt is set on the housing 1 11, a third slide groove 93 is provided on the transmission plate 9, which is slidably matched with the limit bolt 11, and a bolt column for installing the limit bolt 11 is provided on the housing 1, and the bolt column is placed in the third slide groove 93; the third slide groove 93 extends along the sliding direction of the transmission plate 9, a cylinder 35 is provided on the transmission rod 3, and a fourth slide groove 94 corresponding to the cylinder 35 is provided on the transmission plate 9, and the cylinder 35 is movably placed in the fourth slide groove 94, and the extension directions of the third slide groove 93 and the fourth slide groove 94 are perpendicular to each other.

[0035] See also Figure 6-Figure 9 An elastic member 12 is provided between the weight push rod 83 and the shell 1, and the elastic member 12 is used to drive the weight push rod 83 to reset downward, so that when the cover is in the closed position, the weight push rod 83 automatically resets downward under the action of the elastic member so that the weight blocks the upper port of the exhaust pipe 81, thereby realizing the function of heating and maintaining the pressure of the inner pot. When the pressure in the inner pot is too high, the weight is pushed up by the air pressure to exhaust and reduce the pressure; the elastic member 12 is a compression spring, one end of the elastic member 12 abuts against the weight push rod 83, and the other end of the elastic member 12 abuts against the shell 1.

[0036] Another embodiment of the utility model provides an electric pressure cooker, comprising the cooking utensil cover opening and closing mechanism as described above.

[0037] The electric pressure cooker in this embodiment is provided with a first micro switch and a second micro switch, which can realize the function of sensing the opening and closing of the pot cover buckle ring, thereby avoiding the problem of the pot cover buckle ring not being opened and closed in place during use; at the same time, the heavy hammer can be linked to open the exhaust during the lid opening process to avoid excessive pressure in the inner pot to break the pot cover assembly when the lid is opened, and the use is safe and reliable; the driving part is a reduction motor, which includes a motor body and a gear reduction box, so that the output torque of the driving part is sufficient and the transmission is more stable and powerful; the shell is provided with a first micro switch and a second micro switch for controlling the operation of the driving part, and the micro switches are sensitive in action and can sense the opening and closing of the lid sensitively and reliably.

[0038] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A cooking utensil cover opening and closing mechanism, comprising: A pot cover assembly and an inner pot (10), characterized in that the pot cover assembly comprises a shell (1) and a pot cover buckle ring (2) rotatably connected to the shell (1), the pot cover buckle ring (2) being locked / released with the inner pot (10) by its own circumferential rotation, the shell (1) being provided with a driving device for driving the pot cover buckle ring (2) to rotate circumferentially, the driving device comprising a transmission rod (3) and a driving part (4) for driving the transmission rod (3), the transmission rod (3) being connected to the pot cover buckle ring (2) to drive the pot cover buckle ring (2) to rotate circumferentially, the shell (1) being provided with a first micro switch (5) and a second micro switch (6) for controlling the operation of the driving part (4), the transmission rod (3) driving the pot cover buckle ring (2) to rotate circumferentially to have a ready-to-open position and a closed position; When the pot is in the ready-to-open position, the pot lid buckle ring (2) and the inner pot (10) are released, and the transmission rod (3) touches the first micro switch (5) to control the driving part (4) to stop running; when the pot is in the closed position, the pot lid buckle ring (2) and the inner pot (10) are locked, and the transmission rod (3) touches the second micro switch (6) to control the driving part (4) to stop running.

2. The cooking utensil cover opening and closing mechanism according to claim 1, characterized in that: The transmission rod (3) is a swing rod rotatably connected to the housing (1); the transmission rod (3) swings between the first micro switch (5) and the second micro switch (6); a first touch portion (31) and a second touch portion (32) are respectively formed on two sides of the transmission rod (3); the first touch portion (31) is used to touch the first micro switch (5); and the second touch portion (32) is used to touch the second micro switch (6).

3. The cooking utensil cover opening and closing mechanism according to claim 1, characterized in that: The pot cover buckle ring (2) is provided with a convex column (21), the transmission rod (3) is provided with a slot (33) corresponding to the convex column (21), and the housing (1) is provided with a first sliding groove (101) for the convex column (21) to slide.

4. The cooking utensil cover opening and closing mechanism according to claim 1, characterized in that: The driving part (4) is a motor, the rotation output end of the driving part (4) is fixedly connected to a turntable (7), a guide column (71) is eccentrically arranged on the turntable (7), a second slide groove (34) corresponding to the guide column (71) is arranged on the transmission rod (3), and the guide column (71) is movably placed in the second slide groove (34).

5. The cooking utensil cover opening and closing mechanism according to claim 4, characterized in that: The driving part (4) is a reduction motor, and the reduction motor comprises a motor body (41) and a gear reduction box (42).

6. The cooking utensil cover opening and closing mechanism according to claim 1, characterized in that: A weight device is provided on the shell (1), the weight device comprising an exhaust pipe (81), a weight (82) and a weight push rod (83) which can be raised and lowered. The weight (82) is placed at the upper end of the exhaust pipe (81). The weight (82) blocks the upper end of the exhaust pipe (81) under the action of its own weight. The lower end of the exhaust pipe (81) is in communication with the inner cavity of the inner pot (10). The weight push rod (83) is used to push the weight (82) upward to open the upper end of the exhaust pipe (81) for exhaust. A linkage component is provided between the transmission rod (3) and the weight push rod (83). When the transmission rod (3) drives the pot cover buckle ring (2) to rotate circumferentially toward the position to be opened, the transmission rod (3) drives the weight push rod (83) to move upward through the linkage component to push the weight (82) upward.

7. The cooking utensil cover opening and closing mechanism according to claim 6, characterized in that: The linkage component comprises a transmission plate (9) slidably arranged on the housing (1), the transmission plate (9) being provided with a groove (91) corresponding to the weight push rod (83), and a guide inclined surface (92) for lifting the weight push rod (83) being arranged in the groove (91).

8. The cooking utensil cover opening and closing mechanism according to claim 7, characterized in that: The housing (1) is provided with a limit bolt (11), the transmission plate (9) is provided with a third slide groove (93) which is slidably matched with the limit bolt (11), the third slide groove (93) extends along the sliding direction of the transmission plate (9), the transmission rod (3) is provided with a cylinder (35), the transmission plate (9) is provided with a fourth slide groove (94) corresponding to the cylinder (35), and the cylinder (35) is movably placed in the fourth slide groove (94).

9. The cooking utensil cover opening and closing mechanism according to claim 6, characterized in that: An elastic member (12) is provided between the weight push rod (83) and the housing (1), and the elastic member (12) is used to drive the weight push rod (83) to reset downward.

10. An electric pressure cooker, characterized in that: The invention comprises a cooking utensil cover opening and closing mechanism as claimed in any one of claims 1 to 9.

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