Lid assembly and pressure cooker

Abstract

The present invention discloses a pot cover assembly and a pressure cooker, wherein the pot cover assembly includes a pot cover, an exhaust valve and a pressure regulating mechanism installed on the pot cover, the pressure regulating mechanism includes a first magnetic member, a second magnetic member, a linkage slider, a locking structure, an unlocking key and a linkage mechanism, the linkage mechanism transmission-connecting the unlocking key and the linkage slider, and is used to convert the up and down movement of the unlocking key into the lateral separation movement of the linkage slider and the locking structure. The pot cover assembly and the pressure cooker provided by the present invention are unlocked by the unlocking key, thereby enriching the unlocking methods for high and low pressure switching of the pressure cooker.

Description

[0001] Case division information

[0002] This application is a divisional case based on the Chinese patent application No. 201610403119.2 filed on June 8, 2016, entitled “COOK LID ASSEMBLY AND PRESSURE COOKER”, and all the contents of which are incorporated herein by reference. Technical Field

[0003] The present invention relates to the technical field of cooking utensils, and in particular to a pot cover assembly and a pressure cooker. Background Art

[0004] Pressure cooker, also known as pressure cooker, is widely used because of its high temperature and high pressure characteristics, which greatly shortens the time spent on cooking food and significantly improves cooking efficiency.

[0005] As a core component of the pressure cooker, the exhaust valve is mainly used to ensure that the pressure inside the pressure cooker is within a specific pressure range. The exhaust valve is installed on the lid of the pressure cooker, and the lid is provided with an exhaust valve core for the exhaust valve to be installed. Once the air pressure in the pressure cooker is too high, enough to push the exhaust valve upward, the steam in the pot will be discharged from the exhaust valve core and the exhaust valve to achieve the purpose of pressure relief.

[0006] During the exhaust process of the exhaust valve, the gas pressure in the pressure cooker needs to overcome the downward force F of the exhaust valve. 下压 , for the most original pressure cooker, F 下压 is the gravity G of the exhaust valve, and the gravity G of the exhaust valve is a certain value. Accordingly, F 下压 is also a constant value, then the exhaust pressure of the exhaust valve is a constant value.

[0007] However, with the improvement of people's living standards, people's requirements for material life are becoming more and more stringent, and there are higher requirements for pressure cookers. For example, pressure cookers are required to have several different cooking pressures. In this way, different pressures can be used to cook different foods. For example, when cooking ribs, a higher pressure can be used first to quickly cook the ribs, and then when adding vegetables such as lotus root, it can be switched to low pressure to avoid overcooking the food; or during the cooking process of the same food, the pressure can be switched to achieve an exhaust boiling effect to improve the taste of the food.

[0008] To achieve adjustable pressure in the pressure cooker, it is mainly necessary to adjust the downward force F of the exhaust valve. 下压 The magnitude, however, regulates the downward force F of the exhaust valve 下压 There are many ways to adjust the gravity of the exhaust valve (with a counterweight component) in the early days. Later, by setting mutually adsorbed magnetic parts on the pot cover and the exhaust valve, and changing the magnetic attraction force of the two magnetic parts, the exhaust valve can be adjusted.吸 To change F 下压 =G+f 吸 , f 吸 There are two main ways to adjust the magnetic field: one is electronic adjustment, which is to set the magnetic field as an electronic induction magnetic field and change the electric signal parameters such as the current to change the f 吸 This method is commonly used in high-end pressure cookers, but the cost is relatively high. Another form is mechanical adjustment, which changes the f by changing the facing area or distance between the two magnetic parts. 吸 Size, among which changing the distance between two magnetic parts is more commonly used.

[0009] A more common implementation method for changing the distance between the two magnetic parts is as follows: a first magnetic part is provided in the exhaust valve, and a second magnetic part is provided on the pot cover and below the exhaust valve. The second magnetic part is elastically mounted on the pot cover by an elastic return part. The pot cover is also provided with a pressing part for pressing the second magnetic part. A locking structure is provided on one side of the pressing part. By pressing down the pressing part, the pressing part and the second magnetic part are in a lower position, thereby achieving the purpose of pressure adjustment. When the pressing part is in the lower position, it is buckled by the locking structure, and the pressing part and the second magnetic part are limited to the lower position, so that the pressure cooker remains in a lower pressure state. Once the pressure cooker needs to be switched to a high pressure state, the pressing part and the locking structure need to be unfastened. After unfastening, the pressing part and the second magnetic part are reset to a high position under the action of the elastic force of the elastic return part.

[0010] There are many ways to unfasten the pressing member and the locking structure. For example, the locking structure can be moved and separated from the pressing member by opening the lid. In order to enrich the unfastening methods of the pressing member and the locking structure, it is necessary to design a new unlocking method. Summary of the Invention

[0011] The main purpose of the present invention is to provide a pot cover assembly, aiming to provide a new unlocking method.

[0012] To achieve the above object, the present invention provides a pot cover assembly, comprising a pot cover, and an exhaust valve and a pressure regulating mechanism installed on the pot cover, wherein the pressure regulating mechanism comprises:

[0013] A first magnetic member is mounted on the exhaust valve;

[0014] A second magnetic member is located below the first magnetic member and has an up and down travel;

[0015] The linkage slider has an up-and-down stroke and is mounted on or press-connected with the second magnetic member so as to drive the second magnetic member to move to a low position when the linkage slider is moved downward. The linkage slider and the second magnetic member are reset upward to a high position by a first reset member. The linkage slider also has a lateral stroke and is reset to an initial lateral position by a second reset member.

[0016] A locking structure is provided on the pot cover, for preventing the linked slider from moving upward when the linked slider is in a low position and a horizontal initial position;

[0017] an unlock key having a movable travel; and

[0018] The linkage mechanism is connected to the unlocking key and the linkage slider in a transmission manner, so as to convert the movable stroke of the unlocking key into a lateral separation movement of the linkage slider and the locking structure.

[0019] Preferably, the unlocking key has an up and down stroke, and the linkage mechanism is used to convert the up and down stroke of the unlocking key into a lateral separation movement of the linkage slider and the locking structure.

[0020] Preferably, the linkage mechanism includes a driving portion provided on the unlocking key and the linkage slider, and a wedge surface abutting against the driving portion.

[0021] Preferably, the linkage mechanism is used to convert the downward movement of the unlocking key into a lateral separation movement of the linkage slider and the locking structure, and the wedge surface is arranged from top to bottom in a direction close to the locking structure.

[0022] Preferably, the unlocking key includes an operating portion, and the driving portion includes a protruding column extending downward from the operating portion;

[0023] The linked sliding block is provided with a driving groove corresponding to the convex column, and the wedge surface is arranged on the inner side wall of the driving groove.

[0024] Preferably, the linkage slider has a pressing surface for the boss to press, and the wedge surface is arranged above the pressing surface, and the wedge surface is arranged from bottom to top in a direction close to the lock structure. When the unlocking key is downward, the boss presses the pressing surface to make the linkage slider downward. When moving upward, it presses against the wedge surface, driving the linkage slider and the lock structure to move laterally apart.

[0025] Preferably, the pot lid assembly also includes an exhaust lever, the first end of the exhaust lever is located below the exhaust valve, the middle part is rotatably mounted on the pot lid, and the second end is located below the unlocking key. When the second end is pressed down by the unlocking key, the lever moves, causing the first end to lift the exhaust valve for exhaust.

[0026] Preferably, the pot cover defines an installation groove with an open upper end for installing the exhaust valve, the side wall of the installation groove is provided with a clearance hole for the first end of the exhaust lever to pass through, and the first end of the exhaust lever is provided with a sealing member for sealing the clearance hole.

[0027] Preferably, the pot cover assembly further includes a pressure regulating button, which has an up and down stroke and is located above the interlocking slider for pressing the interlocking slider downward.

[0028] Preferably, the second magnetic member is limited in the horizontal direction, and the bottom surface of the second magnetic member is elastically mounted on the pot cover through the first reset member, and the upper surface of the second magnetic member abuts against the linkage slider.

[0029] Preferably, the locking structure is located at one end of the linked slider, and the second reset member is abutted between the other end of the linked slider and the pot cover.

[0030] Preferably, a buckle portion is provided at one end of the linkage slider close to the locking portion, and when the linkage slider is in a low position and a lateral initial position, the buckle portion abuts against the locking structure.

[0031] Preferably, the locking structure is a self-locking slider of the pot lid, which is elastically and movably mounted on the pot lid, and the whole can be telescopically moved toward the center of the pot lid. The self-locking slider of the pot lid includes a stop portion that exposes the inner wall of the pot lid, and a locking portion that extends from the top wall of the pot lid to the linked slider, and the linked slider locks with the locking portion when under pressure.

[0032] Preferably, the locking portion is provided with a stop hole at a position corresponding to the float, and the float cooperates with the stop hole when floating up to limit the lateral movement of the self-locking slider of the pot cover.

[0033] Preferably, an installation cavity is provided on the top of the pot cover, and a handle is provided in the installation cavity. The handle includes a handle seat installed in the installation cavity and a handle cover provided to cover the handle seat. The exhaust valve, the second magnetic component, the linkage slider and the unlocking key are all installed in the handle, and the unlocking key and the exhaust valve are exposed upward from the handle cover.

[0034] Preferably, a mounting groove with an open upper end is defined between the handle seat and the handle cover, an exhaust valve core exposed to the mounting groove is provided at the bottom of the mounting groove, and the exhaust valve is sleeved on the exhaust valve core;

[0035] The linkage slider is arranged in a frame shape, including a horizontal frame extending in the transverse direction and a vertical frame connected to the horizontal frame, and the linkage slider is arranged on the periphery of the installation groove;

[0036] The second magnetic component includes a ring-shaped main body arranged in the mounting groove, and two ears extending from the main body, and the main body is sleeved on the exhaust valve core, and its lower end is abutted against the bottom of the mounting groove through the first reset component, and the two ears extend out of the mounting groove and slide against the bottom of the two horizontal frames.

[0037] Preferably, the linkage slider includes a pressing section located below the handle seat and below the mounting slot, a connecting section extending obliquely upward from the pressing section into the handle seat, and a driving section extending laterally from the connecting section, the unlocking key being provided above the driving section and being transmission-connected to the driving section via the linkage mechanism;

[0038] A downwardly extending connecting portion is provided between the two ears and the main body, so that the two ears extend from the bottom of the mounting groove and slide against the bottom of the two horizontal frames on the pressing section.

[0039] Preferably, the unlocking key has a swing stroke, and the linkage mechanism is used to convert the swing stroke of the unlocking key into a lateral separation movement of the linkage slider and the locking structure.

[0040] Preferably, the unlocking key has a lateral swing stroke, and the linkage mechanism includes a pushing portion provided at the lower end of the unlocking key, and a pushing surface provided on the linkage slider and opposite to the pushing portion.

[0041] Preferably, the unlocking key has a rotational stroke, and the linkage mechanism is used to convert the rotational stroke of the unlocking key into a lateral separation movement of the linkage slider and the locking structure.

[0042] Preferably, the linkage mechanism includes a cam provided at the lower end of the unlocking key, and a pushing surface provided on the linkage slider and opposite to the cam.

[0043] The present invention further provides a pressure cooker comprising a cooker body and a lid assembly covering the cooker body, wherein the lid assembly comprises a lid, an exhaust valve mounted on the lid, and a pressure regulating mechanism, wherein the pressure regulating mechanism comprises:

[0044] A first magnetic member is mounted on the exhaust valve;

[0045] A second magnetic member is located below the first magnetic member and has an up and down travel;

[0046] The linkage slider has an up-and-down stroke, and one end of the linkage slider is mounted on or press-connected with the second magnetic member so as to drive the second magnetic member to move to a low position when the linkage slider is moved downward, and the linkage slider and the second magnetic member are reset upward to a high position by a first reset member. The linkage slider also has a lateral stroke and is reset to a lateral initial position by a second reset member.

[0047] A locking structure is provided on the pot cover, for preventing the linked slider from moving upward when the linked slider is in a low position and a horizontal initial position;

[0048] an unlock key having a movable travel; and

[0049] The linkage mechanism is connected to the unlocking key and the linkage slider in a transmission manner, so as to convert the movable stroke of the unlocking key into a lateral separation movement of the linkage slider and the locking structure.

[0050] In the technical solution of the present invention, when the linked slider is in the lateral initial position and moves downward to drive the second magnetic member to be in the low position together with the second magnetic member, the linked slider is buckled by the lock structure and restricted from moving upward. At this time, the distance between the second magnetic member and the first magnetic member is relatively far, the attraction between the two is relatively small, and the exhaust pressure of the exhaust valve is relatively small, that is, the pressure cooker is in the low-pressure mode. If the pressure cooker is to be switched to the high-pressure mode at this time, the user can operate the unlocking button. The linkage mechanism is used to convert the movable stroke of the unlocking button into a lateral separation movement of the linked slider and the lock structure. Then, under the elastic restoring force of the first restoring member, the linked slider and the second magnetic member move to the high position, corresponding to the pressure cooker being in the high-pressure mode, and unlocked by the unlocking button, thereby enriching the unlocking method for high-pressure switching of the pressure cooker. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0052] Figure 1 This is a perspective exploded schematic diagram of an embodiment of a pot cover assembly provided by the present invention;

[0053] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure of the linked slider of the pot cover assembly is provided;

[0054] Figure 3 for Figure 1 A schematic diagram of the three-dimensional structure of the second magnetic component of the pot cover assembly is provided;

[0055] Figure 4 for Figure 1 A schematic cross-sectional view of a pot lid assembly is provided, wherein the linkage slider and the second magnetic member are in a high position;

[0056] Figure 5 for Figure 4 A partial schematic diagram of

[0057] Figure 6 for Figure 1 A schematic cross-sectional view of a pot lid assembly is provided, wherein the linkage slider and the second magnetic member are in a low position;

[0058] Figure 7 A schematic diagram of a linkage slider, a locking structure, and an explanation key in another embodiment of the pot cover assembly provided by the present invention, wherein the linkage slider is in a high position;

[0059] Figure 8 for Figure 7 Schematic diagram of the linkage slider, lock structure and unlocking button after the unlocking button is pressed down, where the linkage slider is in the low position;

[0060] Figure 9 for Figure 7 Schematic diagram of the linkage slider, lock structure and unlocking button after the unlocking button is pulled up, where the linkage slider is in the low position;

[0061] Figure 10 A schematic diagram of a linkage slider, a locking structure, and an explanation key in another embodiment of the pot cover assembly provided by the present invention, wherein the linkage slider is in a high position;

[0062] Figure 11 for Figure 10 Schematic diagram of the linkage slider, locking structure and unlocking button after the linkage slider is pressed down, where the linkage slider is in the low position;

[0063] Figure 12 for Figure 10 Schematic diagram of the linkage slider, lock structure and unlocking button after the unlocking button is swung in the middle, where the linkage slider is in the low position;

[0064] Figure 13 A schematic diagram of a linkage slider, a locking structure, and an explanation key in another embodiment of the pot cover assembly provided by the present invention, wherein the linkage slider is in a high position;

[0065] Figure 14 for Figure 13 Schematic diagram of the linkage slider, locking structure and unlocking button after the linkage slider is pressed down, where the linkage slider is in the low position;

[0066] Figure 15 for Figure 13 Schematic diagram of the linkage slider, lock structure and unlocking button after the unlocking button is turned, where the linkage slider is in the low position.

[0067] Description of Figure Numbers:

[0068]

[0069]

[0070] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0071] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0072] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0073] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0074] The present invention provides a pressure cooker, which comprises a pot body and a pot cover assembly arranged to cover the pot body. Figures 1 to 6 A pot cover assembly is provided in one embodiment of the present invention.

[0075] See also Figures 1 to 3 as well as Figure 5The pot cover assembly 100 includes a pot cover 1, an exhaust valve core 2, an exhaust valve 3 and a pressure regulating mechanism for adjusting the exhaust pressure of the exhaust valve 3 provided on the pot cover 1, and the pressure regulating mechanism includes:

[0076] A first magnetic member (not shown) is mounted on the exhaust valve 3;

[0077] The second magnetic member 5 is located below the first magnetic member and has an up and down travel;

[0078] The linkage slider 6 has an up and down stroke and is provided for the installation of the second magnetic member 5 or is pressed against the second magnetic member 5 so as to drive the second magnetic member 5 to move to a lower position (such as Figure 6 As shown), the linkage slider 6 and the second magnetic member 5 are reset upward to a high position (as shown) by the first reset member 71. Figure 4 and Figure 5 As shown), the linkage slider 6 also has a lateral stroke and is reset to the lateral initial position ( Figure 4 and Figure 6 shown);

[0079] A locking structure 8 is provided on the pot cover 1 to prevent the linkage slider 6 from moving upward when the linkage slider 6 is in a low position and a horizontal initial position;

[0080] Unlocking key 91, having an active stroke; and

[0081] The linkage mechanism is configured to transmit and connect the unlocking key 91 and the linkage slider 6 , so as to convert the movable stroke of the unlocking key 91 into a lateral separation movement of the linkage slider 6 and the locking structure 8 .

[0082] It should be noted that the present invention does not impose any restrictions on the horizontal direction, which is understood to be a direction on the horizontal plane. As long as the linkage slider 6 and the locking structure 8 can be separated in this direction, it will be sufficient.

[0083] In this embodiment, the unlocking key 91 has an up and down travel, and the linkage mechanism is used to convert the up and down travel of the unlocking key 91 into a lateral separation movement of the linkage slider 6 and the locking structure 8. Obviously, this design is not limited to this. The unlocking key 91 can have a rotational travel, a swinging travel, a toggle travel, etc., which will be described later. The following description will first take the unlocking key 91 having an up and down travel as an example:

[0084] When the linkage slider 6 is in the horizontal initial position and moves downward to drive (as shown in the figure to press) the second magnetic member 5, the linkage slider 6 and the second magnetic member 5 are in the low position (as shown in the figure). Figure 6As shown in FIG5 , when the linkage slider 6 is caught by the locking structure 8 and is restricted from moving upward, the distance between the second magnetic member 5 and the first magnetic member is relatively far, the attraction between the two is relatively small, and the exhaust pressure of the exhaust valve 3 is relatively small, that is, the pressure cooker 100 is in the low-pressure mode. If the pressure cooker 100 is to be switched to the high-pressure mode at this time, the user can operate the unlocking key 91 (for example, press the unlocking key 91 downward), and the linkage mechanism is used to convert the up and down movement of the unlocking key 91 into the lateral separation movement of the linkage slider 6 and the locking structure 8. Then, under the elastic restoring force of the first restoring member 71, the linkage slider 6 and the second magnetic member 5 move to the high position (as shown in FIG5 ). Figure 4 and Figure 5 As shown), the corresponding pressure cooker 100 is in high pressure mode and is unlocked by the unlocking key 91, thereby enriching the unlocking method of high and low pressure switching of the pressure cooker 100.

[0085] Please continue reading Figure 1 and Figure 5 In this embodiment, the pot cover 1 is provided with a mounting cavity 1a, and the pot cover assembly 100 further includes a handle, the handle including a handle seat 11 and a handle cover 12. The handle seat 11 can be fixed in the mounting cavity 1a by, for example, snap-fitting, screwing, etc. The handle cover 12 is arranged to cover the upper end opening of the handle seat 11 and can be connected to the handle seat 11 by a snap-fit ​​structure. The handle cover 12 covers the upper end opening of the mounting cavity 1a, and the top surface of the handle cover 12 is adapted to the top surface shape of the pot cover 1 without affecting the overall shape of the pot cover 1. Most of the components of the pressure regulating mechanism (of course, in theory, all of the components can also be installed) can be installed in the handle (specific installation methods will be described later in detail), and assembled with the handle as an independent component, and installed to the top of the pot cover 1 as a whole through the handle.

[0086] Please continue reading Figure 1 and Figure 5 The exhaust valve 3 is installed on the pot cover 1, and the pot cover 1 defines a mounting groove 13 with an open upper end. The exhaust valve core 2 extends into the mounting groove 13 from the bottom of the mounting groove 13. The exhaust valve 3 is arranged in the mounting groove 13 and can be movably sleeved on the exhaust valve core 2 up and down. In this embodiment, the mounting groove 13 is defined by the rotary hand cover 12 and the rotary hand seat 11. Specifically, the rotary hand cover 12 is provided with an exhaust valve mounting port 121, and the inner edge of the exhaust valve mounting port 121 protrudes from a first cylindrical sleeve portion 12a. The rotary hand seat 11 is provided with a second cylindrical sleeve portion 11a corresponding to the first cylindrical sleeve portion 12a. The first cylindrical sleeve portion 12a and the second cylindrical sleeve portion 11a together enclose the mounting groove 13.

[0087] Please continue reading Figure 1 and Figure 5 The first magnetic member is usually a magnet fixedly installed in the exhaust valve 3, and of course it can also be an iron sheet, and is preferably arranged in a ring shape.

[0088] The second magnetic member 5 can be an iron sheet attracted by a magnet, and obviously, it can also be a magnet attracted by an iron sheet. The second magnetic member 5 can be directly fixed on the linkage slider 6, so that it moves up and down and laterally with the linkage slider 6. Obviously, this design is not limited to this. In this embodiment, the second magnetic member 5 is not directly fixed on the linkage slider 6, but is pressed downward by the linkage slider 6. It may not move laterally with the linkage slider 6. The specific implementation structure is: the second magnetic member 5 is horizontally limited and installed on the pot cover 1, and the bottom surface of the second magnetic member 5 is elastically installed on the pot cover 1 through the first reset member 71, and the upper surface of the second magnetic member 5 is in contact with the linkage slider 6. For more details, please refer to Figure 3 The second magnetic member 5 includes a main body 51 in an annular shape and two ear parts 52 extending from the main body 51. The main body 51 is sleeved on the exhaust valve core 2, and its lower end is in contact with the bottom of the installation groove 13 through the first reset member 71. The main body 51 is placed in the installation groove 13 and is horizontally limited. The two ear parts 52 extend out of the installation groove 13. In view of the structure of the second magnetic member 5 and the existence of the installation groove 13, the structure of the linkage slider 6 also needs to be adaptively designed. In this embodiment, please refer to Figure 2 The linkage slider 6 is arranged in a frame shape, including a horizontal frame 61 extending in the horizontal direction and a vertical frame 62 connected to the horizontal frame 61. The linkage slider 6 is arranged on the periphery of the mounting groove 13. The two ears 52 correspond to the bottom of the two horizontal frames 61 and slide against each other. The two ears 52 are pressed by the two horizontal frames 61, so that the second magnetic member 5 moves downward. At the same time, when the linkage slider 5 moves horizontally, the second magnetic member 5 is horizontally limited, and slides relative to the linkage slider 5, while remaining unchanged in the horizontal position.

[0089] The linkage slider 6 extends in the transverse direction and is movably mounted on the pot cover 1 up and down and laterally. Specifically, the linkage slider 6 is movably mounted on the handle seat 11 up and down and laterally. In this embodiment, as mentioned above, the linkage slider 6 is a frame-shaped structure, and the specific structure is not repeated here.

[0090] The specific installation method of the linkage slider 6 is not limited and can be directly arranged in the handle. In this embodiment, in order to prevent the linkage slider 6 from affecting the arrangement of the installation slot 13 and to improve the installation stability of the linkage slider 6 itself, the linkage slider 6 is arranged in a bent shape along the transverse direction, including a pressing section 6a located below the handle seat 11 and below the installation slot 13, a connecting section 6b extending obliquely upward from the pressing section 6a to the handle seat 11, and a driving section 6c extending laterally from the connecting section 6b. The unlocking key 91 is arranged above the driving section 6c, and is unlocked by the unlocking key 91. The linkage mechanism is transmission-connected with the driving section 6c. The specific structure of the transmission mechanism will be described in detail later. In view of the fact that the pressing section 6a is arranged at the bottom of the rotary handle 11 and the bent setting of the linkage slider 6, the structure of the second magnetic component 5 also needs to be adaptively changed. The main thing is that the two ears 52 need to extend downward from the bottom of the mounting groove 13. The specific method is as follows: there is a downward-extending connection portion 53 between the two ears 52 and the main body 51, so that the two ears 52 extend from the bottom of the mounting groove 13 and slide in contact with the bottom of the two horizontal frames 61 on the pressing section 6a.

[0091] The first reset member 71 is preferably a spring, which is used to reset the linked slider 6 and the second magnetic member 5 from a low position to a high position. In this embodiment, when introducing the second magnetic member 5, the setting position of the first reset member 71 has been introduced in detail, and will not be repeated here. Obviously, the first reset member 71 is not limited to the setting method of this embodiment, and the designer can make adjustments according to actual needs.

[0092] The second reset member 72 is preferably a spring, which is used to reset the linked slider 6 to its initial horizontal position when the linked slider 6 moves horizontally. When the linked slider 6 is in the initial horizontal position, the projections of the linked slider 6 and the locking structure 8 on the horizontal plane will overlap. In this way, the linked slider 6 can be locked by the locking structure 8 only when it moves downward to a low position. The second reset member 72 is installed between the linked slider 6 and the pot cover 1. Specifically, in this embodiment, the locking structure 8 is located at one end of the linked slider 6, and the second reset member 72 abuts between the other end of the linked slider 6 and the pot cover 1. More specifically, the second reset member 72 is connected between the other end of the linked slider 6 and the side wall of the handle seat 11.

[0093] The specific form of the locking structure 8 is not limited. It can be a separate locking structure 8 specifically provided on the pot cover 1 for the interlocking slider 6. For example, a protrusion can be provided on the side wall of the mounting cavity 1a of the pot cover 1 to form the locking structure 8. As long as it can lock the interlocking slider 6 and restrict the interlocking slider 6 from moving upward, it can be used. In this embodiment, the locking structure 8 is a pot cover self-locking slider 8a. The pot cover self-locking slider 8a is elastically and movably mounted on the pot cover 1, and the entirety can be telescopically movable toward the center of the pot cover 1. The pot cover self-locking slider 8a includes a stopper 81 that exposes the inner side wall of the pot cover 1, and a locking portion 82 that extends from the top of the pot cover 1 to the interlocking slider 6. When the interlocking slider 6 is pressed, it locks with the locking portion 82. A plurality of pot teeth are provided on the side wall of the pot body near the upper end of the pot body, the pot cover assembly 100 covers the upper end of the pot body, and the stopper 81 is roughly at the same height as the plurality of pot teeth. When the pot cover assembly 100 rotates relative to the pot body to open the lid, the pot teeth will push against the stopper 81 and move outward, so that the locking portion 82 also moves toward the outside of the pot cover 1, and the locking portion 82 and the linkage slider 6 are offset in the horizontal direction. At this time, the linkage slider 6 is reset to the high position under the action of the first reset member 71. If at this time, the locking portion 82 and the linkage slider 6 are separated, the linkage slider 6 is unfastened, which is called lid opening and unlocking.

[0094] Typically, in order to improve the safety of opening the lid and prevent the user from opening the lid when the pressure in the pressure cooker 100 is too high, the lid self-locking slider 8a is also self-locked by the float 83 of the pressure cooker 100. When the pressure in the pressure cooker 100 is too high, the float 83 locks the locking portion 82, so that the lid self-locking slider 8a cannot move laterally. At this time, when the lid assembly 101 is rotated, the stop portion 81 interferes with the pot teeth, and the lid assembly 101 cannot be rotated to open the lid. The specific connection relationship between the float 83 and the locking portion 82 is as follows: the locking portion 82 is provided with a stop hole 821 at a position corresponding to the float 83. When the float 8 floats up, it cooperates with the stop hole 821 to limit the lateral movement of the lid self-locking slider 8a. Specifically, the float 83 includes a free section 831 and a stop section 832 which are divided into upper and lower sections. Under normal circumstances, the free section 831 is located in the stop hole 832, and a transverse gap is reserved between the free section 831 and the stop hole 821, so that the locking portion 82 can move laterally to unlock. When the pressure in the pressure cooker 100 is too high, the float 83 floats up, and the stop section 832 cooperates with the stop hole 821. There is basically no transverse gap reserved between the stop section 832 and the stop hole 821, and even if there is a gap, it is relatively small. In this way, the transverse movement of the self-locking slider 8 is restricted. At this time, when the pot cover assembly 101 is rotated, the stop section 81 will interfere with the pot teeth, and the pot cover assembly 100 cannot be opened by rotation.

[0095] The linkage mechanism is used to connect the unlocking key 91 and the linkage slider 6, and is used to convert the up and down movement of the unlocking key 91 into the lateral separation movement of the linkage slider 6 and the lock structure 8. This has two meanings: first, the linkage mechanism converts the upward movement of the unlocking key 91 into the lateral separation movement of the linkage slider 6 and the lock structure 8, that is, pull-up unlocking; second, the linkage mechanism converts the downward movement of the unlocking key 91 into the lateral separation movement of the linkage slider 6 and the lock structure 8, that is, push-down unlocking. There are many transmission forms to achieve the effect of the linkage mechanism, which are more common in the mechanical field. In this embodiment, a more common wedge structure drive method is adopted, as follows:

[0096] The linkage mechanism includes a driving portion (such as a boss 912) provided on the unlocking key 91 and the linkage slider 6, and a wedge-shaped surface A abutting against the driving portion. Obviously, the driving portion can be provided on the unlocking key 91, and correspondingly, the wedge-shaped surface A is provided on the linkage slider 6, or the driving portion can be provided on the linkage slider 6, and the wedge-shaped surface A is provided on the unlocking key 91. Specifically, the latter is adopted in this embodiment, as shown in FIG. Figure 1 、 Figure 2and Figure 5 As shown, the unlocking key 91 includes an operating portion 911, the driving portion includes a boss 912 extending downward from the operating portion 911, the linkage slider 6 has a driving slot 63 corresponding to the boss 912, and the wedge-shaped surface A is provided on the inner sidewall of the driving slot 63. Specifically, in this embodiment, the linkage slider 6 is arranged in a frame shape with the driving slot 63 formed therein. The driving slot 63 extends from one end of the linkage slider 6 to the other end. The wedge-shaped surface A is provided at the end of the driving slot 63 away from the locking structure 8 and is disposed facing the locking structure 8. As shown in FIG2 , the wedge-shaped surface A is provided on the right sidewall of the driving slot 63.

[0097] In this embodiment, the unlocking key 91 is unlocked by pressing down, and accordingly, the inclination direction of the wedge-shaped surface A is set from top to bottom close to the locking structure 8. If in other embodiments, the unlocking key 91 is unlocked by pulling up, the inclination direction of the wedge-shaped surface A is set from bottom to top close to the locking structure 8.

[0098] As mentioned above, the downward movement of the linkage slider 6 is often involved. As for which component drives the downward movement of the linkage slider 6, there is no explanation. Obviously, there is no limitation on the downward drive of the linkage slider 6, because there are many ways to realize the downward movement of the linkage slider 6. In this embodiment, an additional pressure adjustment button 92 is designed. The pressure adjustment button 92 has an up and down stroke and is located above the linkage slider 6 to press the linkage slider 6 downward. Specifically, the pressure adjustment button 92 is set in the handle and the handle cover 12 is exposed for the user to press the operation.

[0099] like Figures 7 to 9 As shown, in other embodiments of the present invention, the linkage slider 6' has a pressing surface B' for the boss 912' of the unlocking key to press against, and a wedge-shaped surface A' provided above the pressing surface B'. The wedge-shaped surface A' is arranged from bottom to top in a direction close to the locking structure 8'. When the unlocking key is downward, the boss 91' presses the pressing surface B', causing the linkage slider 6' to move downward. When the unlocking key moves upward, it presses against the wedge-shaped surface A', driving the linkage slider 6' and the locking structure 8' to move laterally apart. In this embodiment, the unlocking key presses down the linkage slider 6', thus achieving dual functions: one is to release the engagement between the linkage slider 6' and the locking structure 8', and the other is to press down the linkage slider 6', causing the linkage slider 6' to drive the second magnetic element (not shown) downward to a lower position.

[0100] Continue reading Figure 1 、 Figure 4 and Figure 5 Furthermore, in this embodiment, the pot lid assembly 100 further includes an exhaust lever 93. The first end 931 of the exhaust lever 93 is located below the exhaust valve 3, and the middle portion is rotatably mounted on the pot lid 1. Specifically, two rotating arms 933 extend downward from the middle portion of the exhaust lever 93, and the exhaust lever 93 is rotatably mounted on the handle base 11 through the two rotating arms 933. The second end 932 is located below the unlocking key 91. When the second end 932 is pressed by the unlocking key 91, a lever movement occurs, causing the first end 931 to lift the exhaust valve 3 for exhaust. Therefore, the unlocking key 91 acts as two keys. On the one hand, when the unlocking key 91 is pressed, it drives the linkage slider 6 to separate from the locking structure 8. On the other hand, at the same time, pressing the second end 932 of the exhaust lever 93 causes the first end 931 to lift the exhaust valve 3 for exhaust.

[0101] When the unlocking button 91 is pressed and the exhaust lever 93 is pressed to exhaust, theoretically, the steam from the upper end of the mounting groove 13 is directly discharged from the exhaust valve 3 at the upper end of the pot cover 1. Then, the side wall of the mounting groove 13 is provided with a clearance hole 131 for the first end 931 of the exhaust lever 93 to pass through, so as to prevent the steam in the mounting groove 13 from being discharged from the clearance hole 131 to the space where the unlocking button 91 is located, and causing harm to the user when the user presses the unlocking button 91. The first end 931 of the exhaust lever 93 is provided with a sealing hole 131 to seal the clearance hole 131. The sealing member 94 provided at 31 is usually made of a soft material such as silicone or rubber material and has good elasticity. When the second end of the exhaust lever 93 is pressed to lift the first end 931 upward, the sealing member 94 undergoes elastic deformation. When the force pressing the second end of the exhaust lever 93 is released, the sealing member 94 resets the exhaust lever 93 under the action of its own elastic force. That is, the sealing member 94 has two functions. One is to provide sealing, and the other is to reset the exhaust lever 93.

[0102] Figures 10 to 12 Another implementation form of the linkage mechanism of the pot cover assembly provided by the present invention is:

[0103] See also Figures 10 to 12The unlocking key 91 has a swing stroke, and the linkage mechanism is used to convert the swing stroke of the unlocking key 91 into a lateral separation movement of the linkage slider 6 and the locking structure 8. Specifically, the unlocking key 91 has a lateral swing stroke, and the linkage mechanism includes a push portion a1 provided at the lower end of the unlocking key 91 and a push-up surface b1 provided on the linkage slider 6 and opposite to the push portion a1. Obviously, the present design is not limited to this. The unlocking key 91 may also have a longitudinal swing stroke. Accordingly, the linkage mechanism is used to convert the longitudinal swing stroke of the unlocking key 91 into a lateral separation movement of the linkage slider 6 and the locking structure 8.

[0104] like Figure 10 As shown, the linkage slider 6 is in the high position and the horizontal initial position. Figure 11 As shown, the linkage slider 6 is pressed and moves downward to a low position and is still in the horizontal initial position. Figure 12 As shown, the unlocking button 91 swings laterally, and the pushing portion a1 pushes the linkage slider 6 and the locking structure 8 to separate laterally, so that the linkage slider 6 deviates from the initial lateral position.

[0105] Figures 13 to 15 Another embodiment of the linkage mechanism of the pot lid assembly provided by the present invention includes: the unlocking button 91 having a rotational travel, and the linkage mechanism is used to convert the rotational travel of the unlocking button 91 into lateral separation movement of the linkage slider 6 and the locking structure 8. Specifically, the linkage mechanism includes a cam a2 provided at the lower end of the unlocking button 91, and a pushing surface b2 provided on the linkage slider 6 and opposite to the cam a2. Obviously, the present design is not limited to this, and any linkage structure that can convert the rotation of the unlocking button 91 into lateral separation movement of the linkage slider 6 and the locking structure 8 is suitable.

[0106] like Figure 13 As shown, the linkage slider 6 is in the high position and the horizontal initial position. Figure 14 As shown, the linkage slider 6 is pressed and moves downward to a low position and is still in the horizontal initial position. Figure 15 As shown, the unlocking button 91 rotates, and the cam a2 pushes the linkage slider 6 and the locking structure 8 to move laterally apart, so that the linkage slider 6 deviates from the lateral initial position.

[0107] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A pot cover assembly, comprising a pot cover, an exhaust valve and a pressure regulating mechanism installed on the pot cover, characterized in that: The pressure regulating mechanism comprises: A first magnetic member is mounted on the exhaust valve; A second magnetic member is located below the first magnetic member and has an up and down travel; The linkage slider has an up-and-down stroke and is mounted on or press-connected with the second magnetic member so as to drive the second magnetic member to move to a low position when the linkage slider is moved downward. The linkage slider and the second magnetic member are reset upward to a high position by a first reset member. The linkage slider also has a lateral stroke and is reset to an initial lateral position by a second reset member. A locking structure is provided on the pot cover, for preventing the linked slider from moving upward when the linked slider is in a low position and a horizontal initial position; an unlock key having a movable travel; and A linkage mechanism, which is in transmission connection with the unlocking key and the linkage slider, and is used to convert the movable stroke of the unlocking key into a lateral separation movement of the linkage slider and the lock structure; The top of the pot lid is provided with a mounting cavity, and the mounting cavity is provided with a handle, the handle comprising a handle seat mounted in the mounting cavity and a handle cover provided to cover the handle seat, the exhaust valve, the second magnetic member, the linkage slider and the unlocking key are all mounted in the handle, and the unlocking key and the exhaust valve are exposed upward from the handle cover; A mounting groove with an open upper end is defined between the handle seat and the handle cover, an exhaust valve core exposed to the mounting groove is provided at the bottom of the mounting groove, and the exhaust valve is sleeved on the exhaust valve core; The linkage slider is arranged in a frame shape, including two horizontal frames extending in the transverse direction and two vertical frames connected to the horizontal frames, and the linkage slider is arranged on the periphery of the installation groove; The second magnetic component includes a ring-shaped main body arranged in the mounting groove, and two ears extending from the main body, and the main body is sleeved on the exhaust valve core, and its lower end is abutted against the bottom of the mounting groove through the first reset component, and the two ears extend out of the mounting groove and slide against the bottom of the two horizontal frames.

2. The pot cover assembly according to claim 1, wherein: The unlocking key has an up and down stroke, and the linkage mechanism is used to convert the up and down stroke of the unlocking key into a lateral separation movement of the linkage slider and the lock structure; The linkage mechanism includes a driving portion which is separately provided on the unlocking key and the linkage slider, and a wedge surface which abuts against the driving portion.

3. The pot cover assembly according to claim 2, wherein: It also includes an exhaust lever, the first end of which is located below the exhaust valve, the middle part of which is rotatably mounted on the pot cover, and the second end of which is located below the unlocking key. When the second end is pressed down by the unlocking key, the lever moves, causing the first end to lift the exhaust valve for exhaust.

4. The pot cover assembly according to claim 3, wherein: The pot cover defines an installation groove with an open upper end for installing the exhaust valve. The side wall of the installation groove is provided with a clearance hole for the first end of the exhaust lever to pass through. The first end of the exhaust lever is provided with a sealing member that seals the clearance hole.

5. The pot cover assembly according to claim 1, wherein: It also includes a pressure regulating button, which has an up and down stroke and is located above the linked slider to press the linked slider downward.

6. The pot cover assembly according to claim 1, wherein: The second magnetic member is limited in the horizontal direction, and the bottom surface of the second magnetic member is elastically mounted on the pot cover through the first reset member, and the upper surface of the second magnetic member is in contact with the linkage slider.

7. The pot cover assembly according to claim 1, wherein: The locking structure is located at one end of the linked slider, and the second reset member is abutted between the other end of the linked slider and the pot cover.

8. The pot cover assembly according to claim 1, wherein: A buckle portion is provided at one end of the linkage slider close to the lock structure. When the linkage slider is in a low position and a horizontal initial position, the buckle portion abuts against the lock structure.

9. The pot cover assembly according to claim 1, wherein: The linkage slider includes a pressing section located below the handle seat and below the mounting groove, a connecting section extending obliquely upward from the pressing section into the handle seat, and a driving section extending laterally from the connecting section. The unlocking key is provided above the driving section and is transmission-connected to the driving section via the linkage mechanism. A downwardly extending connecting portion is provided between the two ears and the main body, so that the two ears extend from the bottom of the mounting groove and slide against the bottom of the two horizontal frames on the pressing section.

10. The pot cover assembly according to claim 1, wherein: The unlocking key has a swing stroke, and the linkage mechanism is used to convert the swing stroke of the unlocking key into a lateral separation movement of the linkage slider and the lock structure.

11. The pot cover assembly according to claim 10, wherein: The unlocking key has a swing stroke in the lateral direction, and the linkage mechanism includes a pushing portion provided at the lower end of the unlocking key, and a pushing surface provided on the linkage slider and opposite to the pushing portion.

12. The pot cover assembly according to claim 1, wherein: The unlocking key has a rotational stroke, and the linkage mechanism is used to convert the rotational stroke of the unlocking key into a lateral separation movement of the linkage slider and the lock structure.

13. The pot cover assembly according to claim 12, wherein: The linkage mechanism includes a cam provided at the lower end of the unlocking key, and a pushing surface provided on the linkage slider and opposite to the cam.

14. A pressure cooker comprising a cooker body and a cover assembly arranged to cover the cooker body, characterized in that: The pot cover assembly is the pot cover assembly according to any one of claims 1 to 13.

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