A pot cover and pressure cooker

Abstract

This invention relates to a pot lid and a pressure cooker. The pot lid includes: a lid body with a receiving hole; a vent button including a guide post located within the receiving hole, one of the receiving hole and the guide post having a limiting groove, and the other of the receiving hole and the guide post having a sliding protrusion adapted to slide within the limiting groove; an elastic member supported between the vent button and the receiving hole, the sliding protrusion being adapted to be located in a first position and a second position within the limiting groove under the support of the elastic member; and a pressure relief valve disposed on the lid body. The vent button is adapted to be pressed to cause the guide post to simultaneously slide axially and rotate circumferentially within the receiving hole, thereby switching the sliding protrusion between the first position and the second position. Therefore, the pot lid of this invention allows the user to achieve continuous venting without constantly pressing the vent button, and eliminates the connecting rod, reducing the number of parts inside the pot lid and allowing the pot lid to be made thinner to reduce the volume occupied by the pressure cooker.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, specifically to a pot lid and a pressure cooker. Background Technology

[0002] When cooking in a pressure cooker, because the internal environment is under high pressure, users need to wait for the high-temperature steam inside the pot to completely liquefy into water after the electric heating device stops working before safely opening the lid. Generally, after the pressure cooker stops heating and waits for a period of time, the pressure can be manually released by rotating or lifting the weighted pressure relief valve, and then the lid can be opened.

[0003] Traditional pressure cookers typically release pressure by pressing a vent button to open the pressure relief valve. Since the vent button is located close to the pressure relief vent, some existing pressure cookers employ a venting mechanism that includes a button base, a vent button, and a connecting rod. The connecting rod has a positioning block, and the button base has a guide rail and a vent positioning groove. In actual use, when the user presses the vent button, the transmission mechanism drives the pressure relief valve to release pressure. Simultaneously, the vent button moves the connecting rod, causing the positioning block to move along the guide rail and enter the vent positioning groove. The positioning block engages within the groove, and the connecting rod locks the vent button in the venting position, achieving a self-locking venting mechanism. This allows for continuous venting without requiring constant pressing of the vent button.

[0004] However, this type of lid requires a connecting rod to connect the vent button and the guide rail. This not only increases the number of parts in the lid, but also requires the lid to be thicker to accommodate the connecting rod, thus increasing the volume occupied by the pressure cooker. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the pressure cooker lid has a large number of parts in the prior art, resulting in a thicker lid and an increased volume occupied by the pressure cooker. The present invention provides a venting assembly and a pressure cooker that can reduce the number of parts in the venting assembly and reduce the thickness of the pressure cooker lid, thereby helping to reduce the volume occupied by the pressure cooker.

[0006] To address the aforementioned problems, a first aspect of the present invention provides a pot lid, comprising: a lid body having a receiving hole formed thereon; an exhaust button including a guide post located within the receiving hole, a limiting groove formed on one of the receiving hole and the guide post, and a sliding protrusion adapted to slide within the limiting groove formed on the other of the receiving hole and the guide post; an elastic member supported between the exhaust button and the receiving hole, the sliding protrusion being adapted to be located in a first position and a second position within the limiting groove under the support of the elastic member; and a pressure relief valve disposed on the lid body and connected to the guide post, adapted to connect the two sides of the lid body, wherein the exhaust button is adapted to be pressed to cause the guide post to simultaneously slide axially and rotate circumferentially within the receiving hole, thereby switching the sliding protrusion between the first position and the second position, wherein when the sliding protrusion is in the first position, the guide post is adapted to switch the pressure relief valve to an open state, and when the sliding protrusion is in the second position, the guide post is adapted to switch the guide post to a closed state.

[0007] Furthermore, the limiting groove includes a first bent section, a second bent section, and a connecting section connecting the first bent section and the second bent section. The first bent section and the second bent section have the same bending direction. The first position is located at the bend of the first bent section, and the second position is located at the bend of the second bent section. The elastic element is adapted to apply a supporting force toward the sliding protrusion in the bending direction toward the first bent section and the second bent section.

[0008] Furthermore, there are two connecting segments: one connecting segment connects the ends of the first bent segment and the second bent segment on one side, and the other connecting segment connects the ends of the first bent segment and the second bent segment on the other side.

[0009] Furthermore, the exhaust button includes a circumferential flange projecting circumferentially from the guide post, and the elastic element includes a spring sleeved on the guide post and supported between the circumferential flange and the receiving hole.

[0010] Furthermore, the receiving hole includes a small diameter section and a large diameter section arranged sequentially from bottom to top, with a circumferential surface formed between the small diameter section and the large diameter section. The small diameter section is suitable for accommodating the guide post, and the large diameter section is suitable for accommodating the circumferential flange.

[0011] Furthermore, one end of the spring abuts against the circumferential surface, and the other end abuts against the circumferential flange.

[0012] Furthermore, the vent button and the pressure relief valve are spaced apart from each other in the horizontal direction, and the pot lid also includes a transmission component disposed between the vent button and the pressure relief valve.

[0013] Furthermore, the transmission component includes a lever with a first end located below the vent button and a second end extending below the pressure relief valve. The first end of the lever is adapted to be pressed down by the vent button when the sliding protrusion is in the first position, so that the second end of the lever lifts the pressure relief valve.

[0014] Furthermore, a handle is formed on the lid, and a receiving hole is formed on the handle.

[0015] Furthermore, the handle includes:

[0016] The handle base is formed on the lid body;

[0017] A handle cover is provided on the handle base and is detachably connected to the handle base, with a receiving hole formed on the handle cover.

[0018] The second aspect of the present invention relates to a pressure cooker, including the lid of the first aspect of the present invention.

[0019] The present invention has the following advantages:

[0020] The applicant discovered that, in order to ensure that the sliding protrusion can slide along the limiting groove and switch between a first position and a second position when the vent button is pressed, the vent button needs to be connected to the guide groove via a connecting rod, with the connecting rod hinged to both the vent button and the guide groove. Assuming the vent button is suitable for sliding vertically, and the guide groove extends both horizontally and vertically, when the vent button moves in the pressing direction, the vent button itself can move vertically, and the connecting rod can rotate about its hinge axis with the vent button, thus replacing the vent button in moving horizontally. This ensures that the sliding protrusion can slide along the guide groove and switch between the first and second positions. This results in an increase in the number of parts in the lid and necessitates a thicker lid to accommodate the connecting rod.

[0021] The pot lid of this invention features a vent button that includes a guide post located within a receiving hole. This allows the guide post to rotate and slide circumferentially within the receiving hole when the user presses the vent button. Through the sliding and circumferential rotation of the guide post, the sliding protrusion and the guide groove can achieve relative movement both vertically and horizontally. This ensures the sliding protrusion can move within the guide groove and switch between a first and a second position, achieving a self-locking venting mechanism. This allows for continuous venting without the user needing to continuously press the vent button. Therefore, the pot lid of this invention features a vent button with a guide post, and the sliding protrusion and guide groove are positioned on the opposite surface of the guide post and the receiving hole. This allows for continuous venting without the user needing to continuously press the vent button, eliminates the need for a connecting rod, reduces the number of parts within the pot lid, and allows for a thinner lid, thus reducing the volume occupied by the pressure cooker.

[0022] The pressure cooker of the second aspect of the present invention includes or uses the lid of the first aspect of the present invention, and thus has the beneficial effect of enabling the user to continuously release air without constantly pressing the exhaust button, and omitting the connecting rod, reducing the number of parts inside the lid, and allowing the lid to be made thinner to reduce the volume occupied by the pressure cooker. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 A cross-sectional view of one side of the pot lid according to an embodiment of the present invention is shown;

[0025] Figure 2 for Figure 1 A magnified view of the exhaust button;

[0026] Figure 3 This is an exploded view of the handle according to an embodiment of the present invention;

[0027] Figure 4 This is a sectional view of one side of the handle base according to an embodiment of the present invention;

[0028] Figure 5 This is a perspective view of the exhaust button according to an embodiment of the present invention;

[0029] Figure 6 This is a perspective view of the handle base of the pot lid according to an embodiment of the present invention.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Cover; 11. Receiving hole; 111. Small diameter section; 112. Large diameter section; 113. Circumferential surface; 13. Limiting groove; 131. First position; 132. Second position; 133. Connecting section; 2. Exhaust button; 21. Guide post; 22. Sliding protrusion; 23. Circumferential flange; 3. Elastic element; 5. Transmission element; 6. Pressure relief valve; 7. Handle; 71. Handle base; 72. Handle cover. Detailed Implementation

[0032] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0035] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0036] Figure 1 A cross-sectional view of one side of the pot lid according to an embodiment of the present invention is shown. Figure 2 for Figure 1 A magnified view of the exhaust button. (See image below.) Figure 1 and Figure 2 As shown, the present invention relates to a pot lid, comprising a lid body 1, a vent button 2, an elastic element 3, and a pressure relief valve 6. The lid body 1 has a receiving hole 11. The vent button 2 includes a guide post 21 located within the receiving hole 11. A limiting groove 13 is formed on one of the receiving hole 11 and the guide post 21. A sliding protrusion 22 adapted to slide within the limiting groove 13 is formed on the other of the receiving hole 11 and the guide post 21. The elastic element 3 is supported between the vent button 2 and the receiving hole 11. The sliding protrusion 22 is adapted to be located at a first position 131 and a second position 132 within the limiting groove 13, with the lower limit of the support of the elastic element 3. The pressure relief valve 6 is mounted on the cover 1 and connected to the guide post 21, which is suitable for connecting the two sides of the cover 1. The exhaust button 2 is suitable for being pressed so that the guide post 21 can slide axially and rotate circumferentially within the receiving hole 11 at the same time, thereby switching the sliding protrusion 22 between the first position 131 and the second position 132. When the sliding protrusion 22 is in the first position 131, the guide post 21 is suitable for switching the pressure relief valve 6 to the open state. When the sliding protrusion 22 is in the second position 132, the guide post 21 is suitable for switching the pressure relief valve 6 to the closed state.

[0037] The applicant discovered that, in order to ensure that the sliding protrusion 22 can slide along the limiting groove 13 and switch between the first position 131 and the second position 132 when the exhaust button 2 is pressed, the exhaust button 2 needs to be connected to the guide groove via a connecting rod, which is hinged to both the exhaust button 2 and the guide groove. Assuming the exhaust button 2 is suitable for sliding vertically, and the guide groove extends both horizontally and vertically, when the exhaust button 2 moves in the pressing direction, the exhaust button 2 itself can move vertically, and the connecting rod can rotate about its hinge axis with the exhaust button 2, thereby replacing the exhaust button 2 in moving horizontally. This ensures that the sliding protrusion 22 can slide along the guide groove and switch between the first position 131 and the second position 132. This results in an increase in the number of parts in the pot lid and requires the pot lid to be thicker to accommodate the connecting rod.

[0038] The pot lid of the present invention includes a vent button 2 comprising a guide post 21 located within a receiving hole 11. This allows the guide post 21 to rotate and slide circumferentially within the receiving hole 11 when the user presses the vent button 2. Through the sliding and circumferential rotation of the guide post 21, the sliding protrusion 22 and the guide groove can move relative to each other both vertically and horizontally. This ensures that the sliding protrusion 22 can move within the guide groove and switch between a first position 131 and a second position 132, achieving a self-locking venting mechanism. This allows the user to continuously vent without constantly pressing the vent button 2. Therefore, the pot lid of the present invention includes a guide post 21 for the vent button 2, and the sliding protrusion 22 and the guide groove are located on the opposite surface of the guide post 21 and the receiving hole 11. This allows the user to continuously vent without constantly pressing the vent button 2, and eliminates the need for a connecting rod, reducing the number of parts within the pot lid and allowing for a thinner lid to reduce the volume occupied by the pressure cooker.

[0039] In this embodiment, as Figure 4 and Figure 6As shown, the limiting groove 13 includes a first bent section, a second bent section, and a connecting section 133 connecting the first bent section and the second bent section. The first bent section and the second bent section have the same bending direction. The first position 131 is located at the bend of the first bent section, and the second position 132 is located at the bend of the second bent section. The elastic element 3 is adapted to apply a supporting force towards the sliding protrusion 22 in the bending direction of the first bent section and the second bent section. When pressure relief is required, the user presses the exhaust switch, and the guide post 21 slides along its own axis. At the same time, the sliding protrusion 22 slides in the guide groove, thereby moving the sliding protrusion 22 from the second position 132 to the first position 131. When the user releases the exhaust switch, the elastic element 3 can apply a force towards the bending direction of the bent section to the guide protrusion, thereby restraining the sliding protrusion 22 in the first position 131 instead of manually, ensuring that the exhaust switch can continuously keep the pressure relief valve 6 in the open state. The user can continuously relieve pressure on the pressure cooker without continuously pressing the exhaust button 2 by hand.

[0040] After the pressure relief is completed, the user can press the vent button 2 again to switch the sliding protrusion 22 to the second position 132 in the guide groove, and the pressure relief valve 6 will close.

[0041] The guide groove can be a zigzag line with two bends, in which case the connecting segment 133 can be a single segment connecting the two bends. Preferably, in this embodiment, there are two connecting segments 133: one connecting segment 133 connects the ends of the first and second bends on one side, and the other connecting segment 133 connects the ends of the first and second bends on the other side. This arrangement allows the first and second bends to be positioned from top to bottom on the same circumferential position of the guide post 21, thereby reducing the space occupied by the guide groove. This allows two sets of sliding protrusions 22 and guide grooves to be provided between the guide post 21 and the receiving hole 11. The two sets of sliding protrusions 22 and guide grooves are symmetrically arranged along the axis of the guide post 21, preventing the guide post 21 from shifting during rotation and ensuring a more stable movement of the exhaust button 2.

[0042] In this embodiment, the exhaust button 2 preferably also includes a circumferential flange 23 projecting circumferentially from the guide post 21. The elastic element 3 is preferably, but not limited to, a spring, a spring sheet, an elastic plug, etc. For example, in this embodiment, the elastic element 3 includes a spring sleeved on the guide post 21 and supported between the circumferential flange 23 and the receiving hole 11.

[0043] The receiving hole 11 can be an integral cylindrical hole. Preferably, in this embodiment, the receiving hole 11 includes a small-diameter section 111 and a large-diameter section 112 arranged sequentially from bottom to top. A circumferential surface 113 is formed between the small-diameter section 111 and the large-diameter section 112. The small-diameter section 111 is adapted to receive the guide post 21. The large-diameter section 112 is adapted to receive the circumferential flange 23. The circumferential flange 23 is located within the large-diameter section 112, which can prevent the exhaust button 2 from protruding from the surface of the lid, thus avoiding damage to the uniformity of the lid's appearance.

[0044] In this embodiment, one end of the spring abuts against the circumferential surface 113, and the other end abuts against the circumferential flange 23. With this arrangement, the circumferential surface 113 can not only support the elastic element 3, but also abut against the circumferential flange 23, preventing the user from pressing the exhaust button 2 too much and damaging the elastic element 3. It has multiple functions and helps to reduce the number of parts inside the pot lid.

[0045] Preferably, such as Figure 3 and Figure 5 As shown, an abutting protrusion extending toward the circumferential surface 113 is formed on the bottom surface of the circumferential flange 23. The end of the elastic member 3 that abuts against the circumferential flange 23 is limited between the abutting protrusion and the guide post 21. The bottom surface of the abutting protrusion is used to abut against the circumferential surface 113. This allows a receiving space to be formed between the exhaust button 2 and the circumferential surface 113 to accommodate the elastic member 3, preventing the elastic member 3 from being over-compressed and damaged when the exhaust button 2 is pressed to the lowest position.

[0046] In this embodiment, the vent button 2 and the pressure relief valve 6 are spaced apart from each other in the horizontal direction. The pot lid also includes a transmission component 5 disposed between the vent button 2 and the pressure relief valve 6. By indirectly connecting the vent button 2 and the pressure relief valve 6 through the transmission component 5, the vent button 2 and the pressure relief valve 6 can be spaced apart from each other, thereby increasing the distance between the user's fingers and the pressure relief valve 6, further reducing the risk of the user's fingers being burned by high-temperature steam.

[0047] The transmission component 5 can be a crank-rocker mechanism. Preferably, in this embodiment, the transmission component 5 includes a lever. The first end of the lever is located below the exhaust button 2. The second end of the lever extends below the pressure relief valve 6. The first end of the lever is adapted to be pressed down by the exhaust button 2 when the sliding protrusion 22 is in the first position 131, so that the second end of the lever pushes up the pressure relief valve 6. Specifically, a support portion can be formed on the bottom wall of the pot lid, and the lever is disposed above the support portion. Preferably, the distance between the support portion and the push-button switch is greater than the distance between the support portion and the pressure relief valve 6, thereby forming a force-saving lever and reducing the force required for the user to press the exhaust button 2.

[0048] In this embodiment, a handle 7 is also formed on the lid. A receiving hole 11 is formed on the handle 7. This allows the handle 7 to be used both to lift the pressure cooker and to accommodate the exhaust switch, effectively reducing the number of parts on the lid, helping to reduce the cost of the lid, and making the lid more aesthetically pleasing overall.

[0049] The side of the lever near the handle 7 may have an upward protrusion, which facilitates the vent button 2, which is positioned high on the handle 7, to abut against the lever.

[0050] In this embodiment, the handle 7 preferably includes a handle base 71 and a handle cover 72. The handle base 71 is formed on the cover body 1. The handle cover 72 covers the handle base 71 and is detachably connected to the handle base 71, and a receiving hole 11 is formed on the handle cover 72. The detachable connection between the handle base 71 and the handle cover 72 is preferably, but not limited to, riveting, snap-fitting, or bolting. For example, in this embodiment, the handle base 71 and the handle cover 72 are snap-fitted together.

[0051] In one embodiment not shown, a pressure cooker is provided that includes the aforementioned lid, thus having the beneficial effects of the lid, namely, enabling continuous venting without constantly pressing the vent button 2, and omitting the connecting rod, reducing the number of parts inside the lid, and allowing the lid to be made thinner to reduce the volume occupied by the pressure cooker.

[0052] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A pot lid, characterized in that The utility model relates to a kind of exhaust button and pressure relief valve, including: Cover (1), the accommodating hole (11) is formed on the cover (1); Exhaust button (2), it includes the guide column (21) in the accommodating hole (11), one of the accommodating hole (11) and the guide column (21) is formed with the limiting slot (13), the other of the accommodating hole (11) and the guide column (21) is formed with the sliding convex part (22) suitable for sliding in the limiting slot (13); Elastic member (3), it is supported between the exhaust button (2) and the accommodating hole (11), the sliding convex part (22) is suitable for being limited in the first position (131) or the second position (132) in the limiting slot (13) under the support of the elastic member (3); Pressure relief valve (6), it is arranged on the cover (1), and is coupled with guide column (21), suitable for communicating both sides of the cover (1), the exhaust button (2) is suitable for being pressed to make the guide column (21) simultaneously slide axially and rotate circumferentially in accommodating hole (11), so that the sliding convex part (22) is switched between the first position (131) and the second position (132), when the sliding convex part (22) is in the first position (131), the guide column (21) is suitable for switching the pressure relief valve (6) to open state, when the sliding convex part (22) is in the second position (132), the guide column (21) is suitable for switching the pressure relief valve (6) to off state;The limiting slot (13) includes first bending section, second bending section and connecting section (133) connecting the first bending section and the second bending section, the bending direction of the first bending section and the second bending section is same, the first position (131) is located at the bending of the first bending section, the second position (132) is located at the bending of the second bending section, the elastic member (3) is suitable for the support force towards the bending direction of the first bending section and the second bending section to the sliding convex part (22);The connecting section (133) is two, one connecting section (133) is connected with the end of the first bending section and the second bending section on one side of the first bending section and the second bending section, another connecting section (133) is connected with the end of the first bending section and the second bending section on the other side of the first bending section and the second bending section; The guide column (23) is cylinder, the accommodating hole (11) includes small diameter section (111), the small diameter section (111) is used to accommodate the guide column (23), the small diameter section (111) is cylindrical hole, the exhaust button (2) is suitable for being pressed to make guide column (21) simultaneously slide axially and rotate circumferentially in accommodating hole (11), so that sliding convex part (22) is switched between the first position (131) and the second position (133). The exhaust button (2) comprises a circumferential flange (23) protruding from the circumference of the guide column (21), and the elastic member (3) comprises a spring sleeved on the guide column (21) and supported between the circumferential flange (23) and the accommodating hole (11); The accommodating hole (11) comprises a small-diameter section (111) and a large-diameter section (112) arranged in sequence from bottom to top, a circumferential surface (113) is formed between the small-diameter section (111) and the large-diameter section (112), and the large-diameter section (112) is adapted to accommodate the circumferential flange (23).

2. The lid of claim 1, wherein One end of the spring abuts against the circumferential surface (113), and the other end abuts against the circumferential flange (23).

3. The lid according to claim 1 or 2, characterized in that The exhaust button (2) and the pressure relief valve (6) are spaced apart from each other in the horizontal direction, and the pot cover further comprises a transmission member (5) arranged between the exhaust button (2) and the pressure relief valve (6).

4. The lid of claim 3, wherein The transmission member (5) comprises a lever, a first end of the lever is located below the exhaust button (2), a second end of the lever extends below the pressure relief valve (6), and the first end of the lever is adapted to be pressed down by the exhaust button (2) when the sliding protrusion (22) is in the first position (131), so that the second end of the lever lifts the pressure relief valve (6).

5. The lid as claimed in claim 1 or 2, wherein The pot cover is further provided with a handle (7), and the accommodating hole (11) is formed on the handle (7).

6. The lid of claim 5, wherein The handle (7) comprises: a handle seat (71) formed on the cover body (1); a handle cover (72) sleeved on the handle seat (71) and detachably connected with the handle seat (71), and the accommodating hole (11) is formed on the handle cover (72).

7. A pressure cooker characterized by The pot cover comprises the handle (7) and the cover body (1). The pot cover comprises the handle (7) and the cover body (1).

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