Cover assembly and cooking device

Abstract

This invention relates to the field of cooking equipment technology, and discloses a lid assembly and cooking equipment. The lid assembly includes an inner lid, a lid-opening buckle, a first push block, a driving component, a first steam channel, and a sealing component. The first push block has a limiting position and a separating position; the sealing component has a sealing position and a connecting position; a resetting component is used to move the first push block to the separating position when the driving component releases its force on the first push block; the inlet end of the second steam channel is connected to the outlet end of the first steam channel, and the outlet end is connected to the external environment; the second steam channel is provided with a limiting port; the push rod has an impact position that extends out of the limiting port and applies an impact force to the pressing end, and a retracted position that returns to the limiting port. The lid assembly of this invention allows the push rod to apply an impact force to the pressing end, achieving the purpose of smoothly opening the lid after pressure relief under abnormal operating logic.

Description

Technical Field

[0001] This invention relates to the field of cooking equipment technology, and more specifically to a lid assembly and cooking equipment. Background Technology

[0002] When using cooking appliances such as pressure cookers, the lid-opening button needs to be locked when the pressure inside the pot is high. This prevents the lid from opening even if the user presses the button, thus preventing the porridge or water inside from splashing out due to excessive pressure and causing injury. Generally, this locking is achieved through a drive component and a first push block. In pressure mode, the drive component drives the first push block to lock the lid-opening latch before pressure is released. According to normal operating logic, before cooking is complete, the force of the drive component on the first push block disappears, the pressure inside the pot is released, the first push block resets, and the lid-opening latch rotates normally to open the lid.

[0003] However, according to the abnormal operation logic, referring to Figure 28 As shown, during the use of the cooking equipment, when there is pressure inside the pot, the user presses the lid-opening button. This button causes the lid-opening latch to rotate, which in turn presses the clamping end of the latch against the first push block. Simultaneously, the pressure inside the pot exerts an upward force on the inner lid of the cooking equipment. This additional upward force on the inner lid further aggravates the lid-opening latch, firmly securing its locking end against the latch plate and firmly pressing the first push block. At this point, even if the force exerted on the first push block by the drive assembly disappears and the pressure inside the pot is released, the first push block cannot retract and reset, resulting in the problem that the lid cannot be opened even after the pressure inside the pot has been released. Summary of the Invention

[0004] The present invention provides a lid assembly and a cooking device to solve the problem that when the pressing end presses the first push block, even if the pushing force of the driving component on the first push block disappears, the first push block cannot retract and reset, which leads to the lid not being able to be opened even after the pressure inside the pot is released.

[0005] In a first aspect, the present invention provides a cover assembly, comprising: Inner cover; The cover latch is rotatably connected to the inner cover and has a locking position for locking the cover assembly and an unlocking position for unlocking the cover assembly; the cover latch includes a pressing end; The first push block is movably disposed on the inner cover and has a limiting position that cooperates with the pressing end to limit the cover opening latch to the locking position, and a separating position that separates from the pressing end. The first steam passage is located on the inner cover; The sealing element is movably disposed on the inner cover and has a sealing position for sealing the first steam passage and a connecting position for opening the first steam passage; The driving component is at least capable of driving the first pusher to move to the limit position and driving the blocking component to move from the blocking position to the connecting position; A reset member is used to move the first push block to the separation position when the driving component releases the force on the first push block; The second steam passage has an inlet end connected to the outlet of the first steam passage and an outlet end connected to the external environment; the second steam passage is provided with a limiting port, which is located between the pressing end and the inner cover; The push rod is movably disposed at the limiting port, having an impact position that extends out of the limiting port and applies an impact force to the pressing end, and a storage position that returns to the limiting port.

[0006] Beneficial effects: During the pressure cooking mode of the cooking device, the drive component applies force to the first push block in the direction close to the lid opening latch to move the first push block to the limit position, thereby limiting the lid opening latch and preventing the lid assembly from opening; at the same time, the force of the drive component on the sealing component is released, and the sealing component moves from the connected position to the sealed position. When the cooking equipment depressurizes, the drive assembly moves away from the lid latch, releasing the force on the first push block. The drive assembly then applies force to the sealing component, moving it from the sealing position to the connecting position. The first and second steam channels connect, allowing steam to enter the second steam channel through the first. As steam passes the limiting port, it pushes the push rod from the storage position to the impact position. During its movement, the push rod applies an impact force to the pressing end, breaking the lid latch's firm grip on the first push block, or breaking the lid latch's limiting state on the first push block. This reduces the clamping or limiting force of the lid latch on the first push block, allowing the first push block to move to the separation position under the reset force of the reset component. This enables the lid latch to rotate normally and open the lid, achieving the goal of smooth lid opening after depressurization under abnormal operating logic. This improves the opening and closing reliability of the lid assembly and provides a better user experience.

[0007] In one alternative embodiment, the cover assembly further includes a resistance element that protrudes from the inner wall of the second steam passage to reduce the cross-sectional area of ​​the second steam passage.

[0008] Beneficial effects: The resistance element protrudes from the inner wall of the second steam channel, which reduces the cross-sectional area of ​​the second steam channel, thereby increasing the steam velocity at the resistance element and increasing the steam thrust on the push rod. This allows the push rod to better exert impact force on the pressing end during movement, breaking the state where the cover latch firmly presses against the first push block, or breaking the limiting state of the cover latch on the first push block, reducing the pressing force or limiting force of the cover latch on the first push block. This allows the first push block to move to the separation position under the reset force of the reset element, thus allowing the cover latch to rotate normally to open the cover. This achieves the goal of smoothly opening the cover after depressurization under abnormal operating logic, improving the opening and closing reliability of the cover assembly and providing a better user experience.

[0009] In one alternative embodiment, in the steam flow direction of the second steam channel, the resistance element is offset from the limiting port and is disposed close to the limiting port.

[0010] Beneficial effects: The resistance element and the limiting port are staggered and set close to the limiting port. This can increase the flow rate of steam passing through the resistance element, thereby increasing the steam thrust on the push rod, so that the push rod can better apply impact force to the pressing end during movement, and can also avoid the resistance element causing motion interference to the push rod.

[0011] In one alternative embodiment, the resistance element is located upstream of the limiting port in the steam flow direction of the second steam channel.

[0012] Beneficial effects: The resistance component is located upstream of the limiting port, which can first reduce the cross-sectional area of ​​the second steam channel, thereby increasing the steam velocity at the resistance component. This increases the steam velocity at the limiting port, thus increasing the steam's thrust on the push rod. This allows the push rod to better apply impact force to the pressing end during movement, breaking the state where the cover latch firmly presses the first push block, or breaking the limiting state of the cover latch on the first push block, reducing the clamping or limiting force of the cover latch on the first push block. This allows the first push block to move to the separation position under the reset force of the reset component, enabling the cover latch to rotate normally and open the cover. This achieves the goal of smoothly opening the cover after depressurization under abnormal operating logic, improving the opening and closing reliability of the cover assembly and providing a better user experience.

[0013] In one optional embodiment, a limiting tube protrudes from the second steam channel, the limiting tube is connected to the second steam channel, and the opening of the limiting tube away from the second steam channel is the limiting port.

[0014] Beneficial effects: By setting the limiting tube, the push rod can be movably limited and connected. When the push rod is in the storage position, the space occupied by the push rod in the second steam channel can be avoided or reduced, so that the push rod can move to the impact position more smoothly under the drive of steam.

[0015] In one optional embodiment, a first limiting protrusion protrudes from the inner peripheral wall of the limiting tube; a second limiting protrusion protrudes from the outer peripheral wall of the push rod, the second limiting protrusion comprising two spaced apart along the axial direction of the push rod, and the first limiting protrusion being disposed between the two second limiting protrusions.

[0016] Beneficial effects: By setting the first limiting protrusion and the two second limiting protrusions, it can be ensured that the push rod can move smoothly in the limiting tube, and the push rod can be limited to prevent it from coming out of the limiting tube. The two second limiting protrusions can also prevent the push rod from tilting or flipping during the movement.

[0017] In one alternative embodiment, the cover assembly further includes: An outer cover is connected to the inner cover, and the outer cover is provided with a steam port; A steam recovery chamber is disposed between the first steam channel and the steam outlet, and the steam recovery chamber is connected to both the outlet of the first steam channel and the inlet of the second steam channel; A steam exhaust chamber is disposed between the first steam channel and the steam port, and the steam exhaust chamber is connected to both the outlet end of the second steam channel and the steam port.

[0018] Beneficial effects: By setting up a steam recovery chamber and a steam exhaust chamber, the steam port can be connected to the first steam channel and the steam port without changing the position of the steam port. This ensures that the steam can smoothly push the push rod and then be smoothly discharged to the external environment through the original steam port for depressurization.

[0019] In one alternative embodiment, the cover assembly further includes: A steam chamber is disposed between the first steam channel and the steam port; A partition is provided in the inner cavity of the steam chamber, dividing the inner cavity of the steam chamber into the steam recovery chamber and the steam exhaust chamber.

[0020] Beneficial effects: Since the sealing component has a sealing position for blocking the first steam channel and a connecting position for opening the first steam channel, a steam chamber needs to be set up between the first steam channel and the original steam port to ensure that steam can be smoothly discharged from the steam port and to prevent steam from overflowing to other locations and causing damage to the cover assembly. Therefore, by setting up a partition, the steam chamber can be simply modified to divide the inner cavity of the steam chamber into the steam recovery chamber and the steam exhaust chamber, so that steam can be smoothly discharged through the first steam channel, the steam recovery chamber, the second steam channel, the steam exhaust chamber, and the steam port in sequence, and the push rod can also be pushed.

[0021] In one optional embodiment, the second steam channel is bent into a U-shaped groove structure, the inlet end and the outlet end are respectively located on both sides of the steam chamber, and the drive assembly and the first push block are located inside the U-shaped groove structure.

[0022] Beneficial effects: The second steam channel is bent into a U-shaped groove structure, which can avoid the first push block and drive component, ensure the smooth flow of the second steam channel, and avoid occupying too much space on the cover component.

[0023] Secondly, the present invention also provides a cooking device including the aforementioned cover assembly.

[0024] In one alternative implementation, the cooking device is a rice cooker or a pressure cooker. Attached Figure Description

[0025] 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.

[0026] Figure 1 This is a schematic diagram of a cover assembly according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the second steam channel of a cover assembly according to an embodiment of the present invention; Figure 3 This is a cross-sectional view of the second steam channel of a cover assembly according to an embodiment of the present invention; Figure 4 for Figure 3 A magnified view of part A in the diagram; Figure 5 This is a schematic diagram of another structure of a cover assembly according to an embodiment of the present invention; Figure 6This is a cross-sectional view of a cover assembly according to an embodiment of the present invention; Figure 7 for Figure 6 A magnified view of part B in the diagram; Figure 8 This is another cross-sectional view of a cover assembly according to an embodiment of the present invention; Figure 9 for Figure 8 A magnified view of part of C; Figure 10 This is another cross-sectional view of a cover assembly according to an embodiment of the present invention; Figure 11 This is a partially enlarged cross-sectional view of a cover assembly according to an embodiment of the present invention, showing a pressure-free state; Figure 12 This is a top-view enlarged structural diagram of a cover assembly according to an embodiment of the present invention, showing a pressure-free state; Figure 13 This is a partially enlarged first cross-sectional view of a cover assembly according to an embodiment of the present invention, showing a pressurized state. Figure 14 This is a partially enlarged cross-sectional view of a cover assembly according to an embodiment of the present invention, showing a pressurized state. Figure 15 This is a top-view enlarged structural diagram of a cover assembly according to an embodiment of the present invention, showing a pressurized state; Figure 16 This is a three-dimensional structural diagram of a first pusher block according to an embodiment of the present invention; Figure 17 This is a side view perspective three-dimensional structural diagram of a limiting cover plate according to an embodiment of the present invention; Figure 18 This is a top-view perspective three-dimensional structural diagram of a limiting cover plate according to an embodiment of the present invention; Figure 19 This is a three-dimensional structural diagram of a limiting cover plate according to an embodiment of the present invention, viewed from below. Figure 20 This is a bottom view of an assembly structure of a first pusher block and a limiting cover plate according to an embodiment of the present invention; Figure 21 This is a schematic diagram showing the positional relationship between the limiting cover plate, the first push block, and the second push block in an embodiment of the present invention; Figure 22 This is a first-view perspective perspective view of a second pusher block according to an embodiment of the present invention; Figure 23 This is a second-view perspective perspective view of a second pusher block according to an embodiment of the present invention; Figure 24 This is a top view of a limiting cover plate according to an embodiment of the present invention; Figure 25 This is a top view showing the assembly relationship between a limiting cover and a second push block according to an embodiment of the present invention; Figure 26 This is a side cross-sectional view of the assembly relationship between a limiting cover and a second push block according to an embodiment of the present invention; Figure 27 This is a cross-sectional view showing the connection relationship between the limiting rib and the lug according to an embodiment of the present invention; Figure 28 This is a partial cross-sectional view of a cover assembly according to an embodiment of the present invention, showing the connection structure between the cover opening buckle, the first push block, the second push block, and the buckle plate. Figure 29 This is a schematic diagram of the opening latch of a cover assembly according to an embodiment of the present invention.

[0027] Explanation of reference numerals in the attached figures: 1. Inner cover; 11. Limiting cover plate; 12. Limiting rib; 13. Second connecting plate; 131. Third protrusion; 14. Connecting post; 15. First connecting hole; 16. Second connecting hole; 17. Through hole; 18. First connecting plate; 181. First protrusion; 19. Rotating shaft; 111. Inner recess; 112. Limiting stop rib; 2. Opening buckle; 21. Elastic buckle; 22. Buckling end; 23. Pressing end; 24. Shaft hole; 3. First push block; 31. Limiting hole; 32. Connecting part; 321. Retraction gap; 33. Limiting part; 34. Clearance space; 35. Second protrusion; 4. Drive assembly; 41. Connecting 42. Rod; 5. Drive valve; 6. Second push block; 7. Mounting groove; 8. Fourth protrusion; 9. Drive inclined surface; 10. Limiting groove; 11. Lug; 12. Buoyancy component; 13. Second elastic component; 14. Sealing component; 15. First steam passage; 26. Blocking component; 37. Resetting component; 48. Snap plate; 49. Second steam passage; 401. Limiting port; 402. Limiting tube; 403. First limiting protrusion; 50. Top rod; 501. Second limiting protrusion; 60. Resistance component; 70. Outer cover; 701. Steam port; 80. Steam chamber; 801. Steam recovery chamber; 802. Steam exhaust chamber; 803. Partition. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. 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.

[0029] According to the abnormal operation logic, refer to Figure 28As shown, during the use of the cooking equipment, when there is pressure inside the pot, the user presses the lid opening button. The lid opening button causes the lid opening latch 2 to rotate, which in turn causes the pressing end 23 of the lid opening latch 2 to press against the first push block 3. At the same time, the pressure inside the pot exerts an upward pushing force on the inner lid 1 of the cooking equipment, which in turn causes the lid opening latch 2 to be superimposed on the upward pushing force on the inner lid 1, so that the latching end 22 of the lid opening latch 2 is firmly fastened to the latch plate 30, and the pressing end 23 of the lid opening latch 2 firmly presses against the first push block 3. At this time, even if the pushing force of the drive component 4 on the first push block 3 disappears and the pressure inside the pot is released, the first push block 3 cannot be retracted and reset, resulting in the problem that the lid cannot be opened even after the pressure inside the pot has been released.

[0030] The following is combined with Figures 1 to 29 The following describes embodiments of the present invention.

[0031] According to an embodiment of the present invention, a cover assembly is provided, including an inner cover 1, a cover latch 2, a first push block 3, a first steam channel 9, a sealing member 10, a drive assembly 4, a reset member 20, a second steam channel 40, and a push rod 50; the cover latch 2 is rotatably connected to the inner cover 1, and has a locking position for locking the cover assembly and an unlocking position for unlocking the cover assembly; the cover latch 2 includes a pressing end 23; the first push block 3 is movably disposed on the inner cover 1, and has a limiting position for cooperating with the pressing end 23 to limit the cover latch 2 to the locking position, and a separating position for separating from the pressing end 23; the first steam channel 9 is disposed on the inner cover 1; the sealing member 10 is movably disposed on the inner cover 1, and has a sealing position for sealing the first steam channel 9 and a position for opening the first steam channel. The connection position of 9; the driving component 4 is at least capable of driving the first push block 3 to move to the limiting position, and driving the sealing component 10 to move from the sealing position to the connection position; when the driving component 4 releases the force on the first push block 3, the reset component 20 is used to drive the first push block 3 to move to the separation position; the inlet end of the second steam channel 40 is connected to the outlet of the first steam channel 9, and the outlet end is connected to the external environment; the second steam channel 40 is provided with a limiting port 401, which is located between the pressing end 23 and the inner cover 1; the top rod 50 is movably located at the limiting port 401, and has an impact position that extends out of the limiting port 401 and applies an impact force to the pressing end 23, and a storage position that returns to the limiting port 401.

[0032] During the pressure cooking mode of the cooking equipment, the drive component 4 applies force to the first push block 3 in the direction close to the lid opening latch 2, so as to move the first push block 3 to the limit position and limit the lid opening latch 2, so that the lid assembly cannot be opened; at the same time, the force of the drive component 4 on the sealing member 10 is released, and the sealing member 10 moves from the connected position to the sealing position. When the cooking equipment depressurizes, the drive assembly 4 moves away from the cover latch 2, releasing the force of the drive assembly 4 on the first push block 3. The drive assembly 4 then applies force to the sealing member 10 to move the sealing member 10 from the blocking position to the connecting position, connecting the first steam channel 9 and the second steam channel 40. Steam enters the second steam channel 40 through the first steam channel 9 and pushes the top rod 50 from the storage position to the impact position when it passes the limiting port 401. This causes the top rod 50 to apply an impact force to the pressing end 23 during its movement, breaking the state in which the cover latch 2 firmly presses the first push block 3, or breaking the limiting state of the cover latch 2 on the first push block 3, reducing the pressing force or limiting force of the cover latch 2 on the first push block 3. This allows the first push block 3 to move to the separation position under the reset force of the reset member 20, thereby allowing the cover latch 2 to rotate normally to open the cover. This achieves the goal of smoothly opening the cover after depressurization under abnormal operating logic, improving the opening and closing reliability of the cover assembly and providing a good user experience.

[0033] In a specific implementation, the cover opening buckle 2 is provided with a shaft hole 24, and the cover opening buckle 2 is rotatably connected to the inner cover 1 through the shaft hole 24.

[0034] In one embodiment, the cover assembly further includes a resistance element 60, which protrudes from the inner wall of the second steam channel 40 to reduce the cross-sectional area of ​​the second steam channel 40.

[0035] The resistance element 60 protrudes from the inner wall of the second steam channel 40, which reduces the cross-sectional area of ​​the second steam channel 40, thereby increasing the flow velocity of the steam flowing through the resistance element 60, and thus increasing the thrust of the steam on the push rod 50. This allows the push rod 50 to better exert an impact force on the pressing end 23 during movement, breaking the state in which the cover opening latch 2 firmly presses the first push block 3, or breaking the limiting state of the cover opening latch 2 on the first push block 3, reducing the pressing force or limiting force of the cover opening latch 2 on the first push block 3, so that the first push block 3 can move to the separation position under the reset force of the reset element 20, thereby allowing the cover opening latch 2 to rotate normally to open the cover. This achieves the purpose of being able to open the cover smoothly after depressurization under abnormal operation logic, improving the opening and closing reliability of the cover assembly and providing a good user experience.

[0036] In one specific embodiment, the resistance member 60 is integrally formed on the inner wall of the second steam channel 40. Alternatively, the resistance member 60 is fixedly connected to the inner wall of the second steam channel 40 by means of welding or bonding.

[0037] In another specific embodiment, the resistance member 60 is detachably connected to the inner wall of the second steam passage 40, for example, by means of a snap fastener.

[0038] In one embodiment, in the steam flow direction of the second steam channel 40, the resistance member 60 is offset from the limiting port 401 and is disposed close to the limiting port 401.

[0039] The resistance element 60 is offset from the limiting port 401 and is set close to the limiting port 401. This can effectively increase the flow rate of steam passing through the resistance element 60, thereby increasing the steam's thrust on the push rod 50, so that the push rod 50 can better exert impact force on the pressing end 23 during movement. At the same time, it can also avoid the resistance element 60 causing motion interference to the push rod 50.

[0040] In one embodiment, in the steam flow direction of the second steam channel 40, the resistance member 60 is located upstream of the limiting port 401.

[0041] The resistance element 60 is located upstream of the limiting port 401. It can first reduce the cross-sectional area of ​​the second steam channel 40, thereby increasing the flow velocity of the steam flowing through the resistance element 60. This increases the flow velocity of the steam when it flows through the limiting port 401, thereby increasing the thrust of the steam on the push rod 50. This allows the push rod 50 to better exert an impact force on the pressing end 23 during its movement, breaking the state in which the cover opening latch 2 firmly presses the first push block 3, or breaking the limiting state of the cover opening latch 2 on the first push block 3, reducing the pressing force or limiting force of the cover opening latch 2 on the first push block 3. This allows the first push block 3 to move to the separation position under the reset force of the reset element 20, thereby allowing the cover opening latch 2 to rotate normally to open the cover. This achieves the goal of smoothly opening the cover after depressurization under abnormal operation logic, improving the opening and closing reliability of the cover assembly and providing a good user experience.

[0042] In one embodiment, a limiting tube 402 protrudes from the second steam channel 40, the limiting tube 402 is connected to the second steam channel 40, and the opening of the limiting tube 402 away from the second steam channel 40 is the limiting port 401.

[0043] By setting the limiting tube 402, the push rod 50 can be movably limited and connected. When the push rod 50 is in the storage position, the space occupied by the push rod 50 in the second steam channel 40 can be avoided or reduced, so that the push rod 50 can move more smoothly to the impact position under the drive of steam.

[0044] In one embodiment, a first limiting protrusion 403 protrudes from the inner peripheral wall of the limiting tube 402; a second limiting protrusion 501 protrudes from the outer peripheral wall of the push rod 50, the second limiting protrusion 501 comprising two spaced apart along the axial direction of the push rod 50, and the first limiting protrusion 403 being disposed between the two second limiting protrusions 501.

[0045] By setting the first limiting protrusion 403 and the two second limiting protrusions 501, it can be ensured that the push rod 50 can move smoothly in the limiting tube 402, and the push rod 50 can be limited to prevent the push rod 50 from coming out of the limiting tube 402 or from falling into the second steam channel 40 and being unable to be pushed out. The two second limiting protrusions 501 can also prevent the push rod 50 from tilting or flipping during the movement.

[0046] As an alternative implementation, the inner peripheral wall of the limiting tube 402 may be provided with two first limiting protrusions 403, which are spaced apart along the axial direction of the limiting tube 402. The outer peripheral wall of the push rod 50 may be provided with a second limiting protrusion 501, which is movably disposed between the two first limiting protrusions 403.

[0047] In one specific embodiment, the first limiting protrusion 403 is a limiting flange provided on the inner peripheral wall of the limiting tube 402, and the second limiting protrusion 501 is a limiting protrusion provided on the outer peripheral wall of the top rod 50. The limiting protrusion includes at least two that are spaced apart along the circumferential direction.

[0048] In another specific embodiment, the first limiting protrusion 403 is a limiting flange provided on the outer peripheral wall of the top rod 50, and the second limiting protrusion 501 is a limiting protrusion provided on the inner peripheral wall of the limiting tube 402. The limiting protrusion includes at least two that are spaced apart along the circumferential direction.

[0049] In another specific embodiment, the first limiting protrusion 403 is a limiting flange provided on the inner peripheral wall of the limiting tube 402, and the second limiting protrusion 501 is a limiting flange provided on the outer peripheral wall of the top rod 50.

[0050] In one embodiment, the cover assembly further includes an outer cover 70, a steam recovery chamber 801, and a steam exhaust chamber 802; the outer cover 70 is connected to the inner cover 1, and the outer cover 70 is provided with a steam port 701; the steam recovery chamber 801 is disposed between the first steam channel 9 and the steam port 701, and the steam recovery chamber 801 is connected to the outlet of the first steam channel 9 and the inlet of the second steam channel 40; the steam exhaust chamber 802 is disposed between the first steam channel 9 and the steam port 701, and the steam exhaust chamber 802 is connected to the outlet of the second steam channel 40 and the steam port 701.

[0051] With the steam recovery chamber 801 and the steam exhaust chamber 802 in place, the first steam channel 9 and the steam outlet 701 can be connected through the steam recovery chamber 801, the second steam channel 40 and the steam exhaust chamber 802 without changing the position of the steam outlet 701. This ensures that the steam can smoothly push the push rod 50 and then be smoothly discharged to the external environment through the original steam outlet 701 for depressurization.

[0052] In one embodiment, the cover assembly further includes a steam chamber 80 and a partition 803; the steam chamber 80 is disposed between the first steam channel 9 and the steam port 701; the partition 803 is disposed in the inner cavity of the steam chamber 80 and divides the inner cavity of the steam chamber 80 into the steam recovery chamber 801 and the steam exhaust chamber 802.

[0053] Since the sealing component 10 has a sealing position for blocking the first steam channel 9 and a connecting position for opening the first steam channel 9, a steam chamber 80 needs to be set between the first steam channel 9 and the original steam port 701 to ensure that steam can be smoothly discharged from the steam port 701 and to prevent steam from overflowing to other locations and causing damage to the cover assembly. Therefore, by setting the partition 803, the steam chamber 80 can be simply modified to divide the inner cavity of the steam chamber 80 into the steam recovery chamber 801 and the steam exhaust chamber 802, so that steam can be smoothly discharged through the first steam channel 9, the steam recovery chamber 801, the second steam channel 40, the steam exhaust chamber 802, and the steam port 701 in sequence, and the push rod 50 can also be pushed.

[0054] In one embodiment, the second steam channel 40 is bent into a U-shaped groove structure, the inlet end and the outlet end are respectively located on both sides of the steam chamber 80, and the drive assembly 4 and the first push block 3 are located inside the U-shaped groove structure.

[0055] The second steam channel 40 is bent into a U-shaped groove structure, which can avoid the first push block 3 and the drive component 4, ensure the smooth flow of the second steam channel 40, and avoid occupying too much space on the cover component.

[0056] In one embodiment, the cover assembly further includes: The second push block 5 is movably disposed on the inner cover 1. The second push block 5 has a fixed state in which it cooperates with the cover opening buckle 2 to limit the cover opening buckle 2 to the locked position, and an active state in which it cooperates with the cover opening buckle 2 to move. The buoyancy element 6 is movably disposed on the inner cover 1, having an upward floating position to limit the second pusher 5 in the fixed state, and an initial position to separate from the second pusher 5.

[0057] When the cooking device is in a pressure cooking mode such as rice cooking, during the pressure release process, the buoyancy component 6 is lifted by the pressure inside the pot and floats to the upper position of the limiting second push block 5. The second push block 5 then limits the lid opening latch 2 to the locked position, preventing the user from opening the lid assembly until the pressure inside the pot completely drops to atmospheric pressure, thus avoiding scalding from splashed soup. When the cooking device is in a pressureless cooking mode such as porridge cooking, if the first steam channel 9 of the cooking device becomes blocked due to lack of cleaning, causing the pressure inside the pot to be higher than atmospheric pressure during cooking, the buoyancy component 6 is lifted by the pressure inside the pot and floats to the upper position of the limiting second push block 5. The second push block 5 then limits the lid opening latch 2 to the locked position, preventing the user from opening the cooking device until the pressure inside the pot completely drops to atmospheric pressure, thus avoiding scalding from splashed soup.

[0058] According to an embodiment of the present invention, another aspect provides a cooking device including the lid assembly and pot assembly described above, wherein the lid latch 2 has a locking position for locking the lid assembly and the pot assembly, and an unlocking position for unlocking the lid assembly and the pot assembly.

[0059] In one embodiment, the cooking device is a rice cooker or a pressure cooker.

[0060] In one embodiment, the cooking device is a pressure cooker.

[0061] In one embodiment, the cover opening latch 2, the first push block 3, the drive assembly 4, and the sealing component 10 are arranged sequentially in the moving direction of the first push block 3.

[0062] In one embodiment, the drive assembly 4 includes a connecting rod 41 and a drive valve 42. The connecting rod 41 is movably disposed on the drive valve 42. One end of the connecting rod 41 cooperates with the first push block 3, and the other end is fixedly connected to the sealing member 10.

[0063] The connecting rod 41 moves under the drive of the drive valve 42, so as to push the first push block 3 and drive the sealing member 10.

[0064] In a further embodiment, the first push block 3 is provided with a clearance space 34; the second push block 5 is located within the clearance space 34. Because the first push block 3 is provided with a clearance space 34, it ensures that the first push block 3 and the second push block 5 will not interfere with each other when they move. Furthermore, they can be nested to save space, and the first push block 3, the second push block 5, and their related structures can be clearly and orderly distributed, resulting in a more compact, clear, and orderly overall layout of the lid assembly of the cooking device.

[0065] In one specific embodiment, the reset member 20 is a first elastic member, which is assembled between the first push block 3 and the inner cover 1, or between the first push block 3 and its peripheral components. When the first push block 3 is in the limited position, the first elastic member is in a compressed state. When the force of the driving component 4 is released, the first elastic member pushes the first push block 3 away from the limited position under the elastic reset action. The cover assembly is further provided with a first elastic member assembled between the first push block 3 and the inner cover 1, or between the first push block 3 and its peripheral components. In the pressure cooking mode of the cooking device, the driving component 4 drives the first push block 3 to lock the opening latch 2 before depressurization. When the first push block 3 moves to the limited position, the first elastic member is compressed synchronously. When the cooking device needs to depressurize, the pushing force of the driving component 4 on the first push block 3 disappears. At this time, the first elastic member provides a reliable elastic reset force, pushing the first push block 3 from the limited position to the separation position, releasing the first push block 3 from the opening latch 2, and ensuring smooth opening of the cover. Compared with the method of the first push block 3 relying on the drive linkage 41 to be dragged and reset, the setting of the first elastic element can enable the first push block 3 to be reset quickly, avoiding the problem of the cover component unlocking failure caused by the unreliable connection and assembly of the first push block 3.

[0066] It should be noted that the peripheral components of the first push block 3 can be the top cover, face cover, or decorative cover of the cover assembly. To facilitate the fixed installation of the first elastic member, a limiting mounting part extending towards the inner cover 1 can be provided on the cover. Alternatively, it can be a bracket or fixing seat or other mounting structure separately provided on the inner cover 1. Compared with the method of setting the first elastic member between the first push block 3 and its peripheral components, the method of setting the first elastic member between the first push block 3 and the inner cover 1 results in a simpler and more compact structure for the cover assembly.

[0067] In some embodiments, the drive component 4 and the first push block 3 are separately coupled. The drive component 4 is only used to drive the first push block 3 to move to the limit position to lock the cover latch 2. Specifically, when it is necessary to lock the cover latch 2, the drive component 4 is activated, and its power output component moves towards the first push block 3 and abuts against the first push block 3. Under the pushing action of the drive component 4, the first push block 3 moves towards the limit position. At this time, the first elastic element is gradually compressed until the first push block 3 reaches the limit position. The power output component of the drive component 4 stops moving and abuts against the first push block 3 to limit the movement, ensuring that the cover latch 2 is reliably maintained in the locked position. When the power output component of the drive component 4 retracts, the pushing force acting on the first push block 3 disappears, and under the rebound action of the first elastic element, the first push block 3 is able to retract to the initial position. The drive assembly 4 and the first push block 3 are designed as separate components. The reset action of the first push block 3 is independent of the return motion of the drive assembly 4, and the reset is not restricted by the drive assembly 4, resulting in sensitive and stable action. This separate design simplifies the connection structure, eliminates the need for additional transmission connectors, reduces processing and assembly costs, and avoids assembly tolerance and jamming issues between the drive assembly 4 and the first push block 3. Since the power output component of the drive assembly 4 only contacts the first push block 3 briefly, component wear is also reduced. The connecting rod 41 is the power output component of the drive assembly 4.

[0068] To facilitate the arrangement of the first elastic element, in some embodiments, the first push block 3 is also formed with a recess 111, so as to achieve a reasonable layout of compact space without changing the structure and size of other components of the cover assembly.

[0069] In some embodiments, the first push block 3 includes a connecting part 32 and a limiting part 33; the connecting part 32 cooperates with the driving component 4; one end of the limiting part 33 is connected to the connecting part 32, and the other end has the limiting position and the separation position; the limiting part 33 and the connecting part 32 form the clearance space 34, and the second push block 5 is movably disposed in the clearance space 34.

[0070] By setting the connecting part 32 and the limiting part 33, it is not only easy to cooperate with the driving component 4, but also easy to limit the opening buckle 2. Furthermore, the individual setting of the two parts can simplify the overall structure of the first push block 3 and form an avoidance space 34, which can avoid movement interference with the second push block 5, while saving the overall space occupied by the first push block 3 and the second push block 5, thus ensuring the compactness of the cover assembly.

[0071] In some embodiments, the connecting part 32 is provided with a snap-fit ​​groove, and the connecting part 32 is detachably snapped into the driving component 4 through the snap-fit ​​groove.

[0072] The snap-fit ​​slot facilitates a detachable snap-fit ​​connection with the drive assembly 4, simplifying the connection process between the drive assembly 4 and the connecting part 32.

[0073] In a further embodiment, the first push block 3 is provided with a first connecting structure, and the power output component of the drive assembly 4 is provided with a second connecting structure that matches the first connecting structure. The first push block 3 and the power output component can be engaged, hooked, hung, or plugged in through the first connecting structure and the second connecting structure. The first push block 3 and the power output component of the drive assembly 4 are connected by engaging, hooking, hanging, or plugging, which is simple in structure, reduces the space occupied inside the cover, and is suitable for the narrow installation space inside the cover, which is conducive to the compact design of the cover components. Since the detachable connection method of engaging, hooking, hanging, or plugging is convenient to disassemble and assemble, it can be quickly disassembled and assembled without fasteners, and the assembly efficiency is high. In the later maintenance and cleaning, it is also convenient to disassemble and assemble the drive assembly 4 and the first push block 3 separately, which improves the convenience of maintenance and the user experience. In a specific embodiment, the connecting part 32 of the first push block 3 is provided with a first connecting structure.

[0074] In a further embodiment, a retraction gap 321 is provided between the first connecting structure and the second connecting structure, and the retraction gap 321 is provided along the reciprocating movement direction of the first push block 3. The retraction gap 321 between the first and second connecting structures provides retraction space when the first push block 3 retracts under the elastic force of the first elastic element, preventing interference between the first push block 3 and the power output component of the drive assembly 4 during rapid retraction, thus avoiding interference with the smooth movement of the first push block 3 and causing it to jam. A clearance space 34 is reserved for the retraction of the first push block 3 within a limited space to prevent rigid collision between the first and second connecting structures during elastic reset, ensuring smooth and synchronous unlocking action after the pressure inside the pot is fully released, and preventing the lid latch 2 from failing to unlock even when the pressure of the cooking equipment drops to atmospheric pressure due to the first push block 3 jamming during reset. Furthermore, the retraction gap 321 can buffer the rebound impact, protecting the detachable connection structure of the first push block 3 and the drive assembly 4, ensuring high reliability over long-term use.

[0075] In one embodiment, the peripheral component includes a limiting cover plate 11, which is disposed on the inner cover 1 and forms a limiting space with the inner cover 1. At least a portion of the first push block 3 is movably disposed within the limiting space. The two ends of the first elastic member are respectively connected to the first push block 3 and the limiting cover plate 11.

[0076] The limiting cover 11 and the inner cover 1 form a limiting space. This limiting space not only limits and guides the movement of the second push block 5, ensuring its smooth and accurate movement and preventing it from shifting, tilting, or jamming, but also limits and guides the movement of the first push block 3, ensuring its smooth and accurate movement and preventing it from shifting, tilting, or jamming. The limiting space guides and circumferentially limits the movement of the first push block 3 and the second push block 5, allowing both to slide smoothly along a preset path. This ensures that the first push block 3 can smoothly compress the first elastic element and that the movement of the first push block 3 is unimpeded during the first elastic element's rebound and reset, allowing it to return to its original position. Furthermore, the limiting cover 11 provides reliable limiting for the first elastic element, preventing it from swaying during operation and ensuring that the first elastic element compresses and rebounds only along the direction of movement of the first push block 3, resulting in smoother reset of the first push block 3.

[0077] In one embodiment, the limiting cover 11 is provided with a first connecting plate 18, which protrudes toward the inner cover 1, and the first connecting plate 18 is provided with a first protrusion 181 for connecting the first elastic member.

[0078] The limiting cover 11 has a first connecting plate 18 protruding into the limiting space, and a first protrusion 181 for engaging the first elastic member is provided on the first connecting plate 18. The protruding first connecting plate 18 can extend into the assembly area of ​​the first push block 3 inside the limiting space without occupying additional assembly space, thus avoiding structural interference with the first push block 3 and the second push block 5 inside the limiting space. The first protrusion 181 provides a positioning mounting point for the first elastic member, which has a higher connection reliability compared to the surface contact mounting method, avoiding problems such as dislocation of the first elastic member during expansion and contraction.

[0079] In one embodiment, the first push block 3 is provided with a second protrusion 35, which is disposed opposite to the first protrusion 181, and the two ends of the first elastic member are respectively fixed to the first protrusion 181 and the second protrusion 35.

[0080] The first elastic element is limited and installed by the first protrusion 181 and the second protrusion 35. The first elastic element is not easy to slip or fall out. It can ensure that the first elastic element is compressed and rebounded along the reciprocating movement direction of the first push block 3. After the driving force acting on the first push block 3 is released, the first elastic element provides a uniform and stable elastic thrust. The force direction of the first push block 3 coincides with the movement trajectory, so that the first push block 3 can be quickly and smoothly reset, and the reset jamming and incomplete reset caused by the skewness of the first elastic element are eliminated.

[0081] In another embodiment, the first protrusion 181 is a rib with a cross-shaped cross section. Alternatively, the first protrusion 181 may also be a cylindrical structure, a frustum-shaped structure, or a rectangular strip structure. The shape of the first protrusion 181 is not limited in detail here.

[0082] In another further embodiment, the second protrusion 35 is a rib with a cross-shaped cross section. Alternatively, the second protrusion 35 may be a cylindrical structure, a frustum-shaped structure, or a rectangular strip structure. The shape of the second protrusion 35 is not explicitly limited here.

[0083] In one embodiment, the cover assembly further includes a second elastic element 7, with its two ends connected to the second push block 5 and the limiting cover plate 11, respectively; the second elastic element 7 and the first elastic element are located on opposite sides of the limiting cover plate 11.

[0084] The second elastic element 7 continuously pushes against the second push block 5, causing the active second push block 5 to move along with the opening latch 2. When the opening latch 2 returns to the locked position from the unlocked position, the second push block 5 returns to the unlocked position along with the opening latch 2 under the elastic action of the second elastic element 7, ensuring that the second push block 5 always maintains its engagement with the opening latch 2. The second elastic element 7 and the first elastic element are respectively disposed on opposite sides of the limiting cover plate 11. The limiting cover plate 11 simultaneously limits the first elastic element and the second elastic element 7, resulting in a more compact structure.

[0085] The second elastic element 7 is connected between the second push block 5 and the limiting cover plate 11. It applies an elastic force to the second push block 5 to move and reset in the direction of the opening latch 2. After the second push block 5 moves with the opening latch 2, when the opening latch 2 resets from the unlocked position to the locked position, it can follow the opening latch 2 to reset to the position before the second push block 5 moved under the action of the elastic force of the second elastic element 7, so that the second push block 5 is always kept in the position that cooperates with the opening latch 2.

[0086] The limiting cover plate 11 is also provided with a second connecting plate 13, which protrudes in the direction of the limiting space. The second connecting plate 13 is provided with a third protrusion 131 for connecting the second elastic member 7. The third protrusion 131 is disposed opposite to the first protrusion 181.

[0087] The second elastic element 7 is assembled through a third protrusion 131 positioned opposite to the first elastic element, adapting to confined spaces. The third protrusion 131 limits the second elastic element 7, ensuring that it reliably applies pre-tightening force to the cover-opening latch 2. After the cover-opening latch 2 shifts, the second elastic element 7 can drive the second push block 5 to move accordingly, ensuring that the second push block 5 always engages with the cover-opening latch 2. The third protrusion 131 is arranged opposite to the first protrusion 181, providing mounting points for the second elastic element 7 and the first elastic element, respectively. The assembly of the first and second elastic elements 7 does not interfere with each other. The third protrusion 131 limits and constrains the second elastic element 7, preventing it from tilting or slipping during extension and retraction, and ensuring that the second elastic element 7 provides pre-tightening force to the second push block 5 towards the cover-opening latch 2. The second push block 5 is continuously pushed by the second elastic element 7, causing the active second push block 5 to move along with the opening latch 2. When the opening latch 2 is reset from the unlocked position to the locked position, the second push block 5 is reset along with the opening latch 2 under the elastic action of the second elastic element 7. The second push block 5 always maintains its cooperation with the opening latch 2.

[0088] In some embodiments, the second push block 5 is provided with lugs 55 on both sides, and the limiting cover plate 11 is provided with limiting ribs 112. The limiting ribs 112 are located on the moving path of the second push block 5 and are used to limit and cooperate with the lugs 55 to prevent the second push block 5 from coming out from the side near the opening buckle 2.

[0089] The lugs 55 on both sides of the second push block 5 form a limiting engagement with the limiting ribs 112 on the limiting cover plate 11. The limiting ribs 112 are located on the moving path of the second push block 5, preventing the second elastic element 7 from having excessive elastic force that pushes the second push block 5 out of the engagement area. In other words, it restricts the second push block 5 from sliding excessively towards the opening latch 2 and dislodging it, ensuring that the second push block 5 is always within the stroke range that can be aligned and engaged with the opening latch 2. Even if the cover assembly is repeatedly opened and closed for a long time, the second push block 5 will not fall off. Since the limiting ribs 112 and the lugs 55 are both arranged within the limiting space, they occupy little space and are suitable for the small and compact internal layout of the cover.

[0090] In some embodiments, a second connecting plate 13 protrudes from the limiting cover plate 11 and is disposed within the limiting space; the second push block 5 is provided with an installation groove 51, and a fourth protrusion 52 is provided on the groove wall of the installation groove 51 near the opening buckle 2; the second connecting plate 13 extends into the installation groove 51 and is provided with a third protrusion 131; one end of the second elastic member 7 is sleeved on the outer periphery of the fourth protrusion 52 and abuts against the groove wall of the installation groove 51, and the other end is sleeved on the outer periphery of the third protrusion 131 and abuts against the second connecting plate 13.

[0091] The protruding second connecting plate 13 can be disposed opposite to the groove wall of the mounting groove 51, so that a fourth protrusion 52 can be provided protruding towards the groove wall of the mounting groove 51, and a third protrusion 131 can be provided protruding from the groove wall of the mounting groove 51 towards the second connecting plate 13; the fourth protrusion 52 and the third protrusion 131 can respectively limit and fix the two ends of the second elastic member 7 in the circumferential direction; the second connecting plate 13 and the groove wall of the mounting groove 51 can respectively limit and fix the two ends of the second elastic member 7 in the axial direction, so as to better limit and fix the second elastic member 7.

[0092] Specifically, both the first elastic element and the second elastic element 7 are compression springs.

[0093] In some embodiments, the fourth protrusion 52 is a rib with a cross-shaped cross section. Alternatively, the fourth protrusion 52 may also be a cylindrical structure, a frustum-shaped structure, or a rectangular strip structure. The shape of the fourth protrusion 52 is not explicitly limited here.

[0094] In some embodiments, the third protrusion 131 is a cross-shaped rib. Alternatively, the third protrusion 131 may be a cylindrical structure, a frustum-shaped structure, or a rectangular strip structure. The shape of the third protrusion 131 is not explicitly limited here.

[0095] The limiting cover plate 11 has a protruding connecting post 14, and the limiting cover plate 11 is connected to the inner cover 1 through the connecting post 14. The connecting post 14 facilitates the support of the gap space between the inner cover 1 and the limiting cover plate 11, so as to form a limiting space.

[0096] In some embodiments, the connecting post 14 is provided with a first connecting hole 15, and the inner cover 1 is provided with a corresponding second connecting hole 16. The first connecting hole 15 and the second connecting hole 16 are connected by fasteners. The connecting post 14 facilitates the connection between the inner cover 1 and the limiting cover 11 through the first connecting hole 15, the second connecting hole 16 and the fasteners, and also facilitates the support of the gap space between the inner cover 1 and the limiting cover 11 to form a limiting space.

[0097] In some embodiments, the first push block 3 is provided with a limiting hole 31, which is a strip-shaped hole extending along the moving direction of the first push block 3, and the limiting hole 31 is movably sleeved on the outer periphery of the connecting post 14.

[0098] The limiting hole 31 is movably sleeved on the outer periphery of the connecting post 14. The limiting hole 31 and the connecting post 14 can limit and guide the first push block 3, ensuring the smooth and accurate movement of the first push block 3 and preventing the first push block 3 from deviating, tilting or getting stuck.

[0099] In some embodiments, the second push block 5 has a driving inclined surface 53 at one end facing the cover opening buckle 2, and the driving inclined surface 53 cooperates with the cover opening buckle 2.

[0100] Due to the driving inclined surface 53, the forces applied to the second push block 5 from the cover latch 2 can be decomposed into a first component force in the direction of movement and a second component force perpendicular to the direction of movement. The second push block 5, in the active state, moves with the cover latch 2 under the action of the first component force. The second component force is limited by the limiting cover plate 11 and the inner cover 1 and will not drive the second push block 5 to move. Therefore, by setting the driving inclined surface 53, the forces applied by the cover latch 2 in various directions can be received and converted into forces that drive the second push block 5 to move.

[0101] In some embodiments, the first elastic element is located above the second push block 5, and the two are arranged in vertical sections. During the reciprocating movement of the second push block 5, the first elastic element will not touch or block the second push block 5, thus avoiding motion interference. The first elastic element ensures that the first push block 3 retracts reliably while ensuring that the second push block 5 moves smoothly without jamming, ensuring reliable operation, reducing component wear, and extending the service life of the cover assembly.

[0102] In some embodiments, the cover-opening latch 2 is provided with an elastic buckle 21, which engages with the driving inclined surface 53. The elastic buckle 21 acts as a buffer when engaging with the driving inclined surface 53, reducing damage to the cover-opening latch 2 and the second push block 5 during engagement.

[0103] In a further embodiment, the cover buckle 2 is provided with a groove, and an elastic buckle 21 is connected to the bottom of the groove. The two sides of the elastic buckle 21 are spaced apart from the two sides of the groove wall to ensure that the elastic buckle 21 has good elastic deformation capability.

[0104] In a preferred embodiment, the elastic buckle 21 is formed by bending the spring sheet upwards, with a smooth transition at the bend. The bend of the elastic buckle 21 slides in cooperation with the driving inclined surface 53 of the second push block 5 to avoid damaging the driving inclined surface 53.

[0105] In a further embodiment, the cover latch 2 is rotatably connected to the inner cover 1 about the rotation axis 19.

[0106] In some embodiments, the second push block 5 is provided with a limiting groove 54 on the side facing the inner cover 1, the inner cover 1 is provided with a through hole 17, the buoyancy member 6 is movably disposed at the through hole 17, the buoyancy member 6 has an upward floating position and inserts into the limiting groove 54, and an initial position separated from the limiting groove 54.

[0107] When the buoyancy component 6 is inserted into the limiting groove 54, it is fixed at the through hole 17 by the buoyancy component 6, so that the second push block 5 cannot move due to the limiting effect of the buoyancy component 6, and is thus in a fixed state. The second push block 5 cannot move under the drive of the opening latch 2. When the buoyancy component 6 is separated from the limiting groove 54, the buoyancy component 6 will no longer limit the second push block 5, and the second push block 5 is in an active state and can move under the drive of the opening latch 2.

[0108] Meanwhile, the through hole 17 also limits and guides the buoyancy component 6.

[0109] In some embodiments, the cooking device further includes a seal 8, which is connected to the inner cover 1, fitted around the outer periphery of the buoyancy member 6, and covers the through hole 17.

[0110] By setting the sealing element 8, the through hole 17 can be sealed to prevent gas from escaping from the through hole 17.

[0111] In a specific embodiment, the outer periphery of the end of the buoyancy member 6 facing away from the second push block 5 is provided with an installation groove 51. The installation groove 51 is an annular groove. The sealing member 8 is a ring structure and is sleeved on the outer periphery of the buoyancy member 6. The inner ring of the sealing member 8 is inserted into the installation groove 51, and the outer ring of the sealing member 8 abuts against the side of the inner cover 1 facing away from the second push block 5.

[0112] Specifically, the sealing element 10 can be a steel ball. Specifically, the driving valve 42 can be a solenoid valve, and the connecting rod 41 can be a solenoid valve connecting rod 41.

[0113] In one embodiment, the first elastic element is located above the second push block 5. The first elastic element is positioned above the second push block 5, and the two are arranged vertically in sections. During the reciprocating movement of the second push block 5, the first elastic element will not touch or obstruct the second push block 5, avoiding motion interference. The first elastic element ensures reliable retraction of the first push block 3 while ensuring smooth, uninterrupted movement of the second push block 5, ensuring reliable operation while reducing component wear and extending the service life of the cover assembly.

[0114] In some embodiments, the first connection structure includes a snap-fit ​​groove formed in the first push block 3, and the drive assembly 4 includes a connecting rod 41, the end of which is provided with a connector, at least a portion of which is snapped into the snap-fit ​​groove.

[0115] The snap-fit ​​groove on the first push block 3 engages with the connector at the end of the connecting rod 41, adapting to the narrow assembly space inside the cover. This facilitates the setting of a retraction gap 321 between the snap-fit ​​groove and the connector along the moving direction of the first push block 3. When the first push block 3 quickly rebounds and resets under the action of the first elastic element, rigid interference and jamming are less likely to occur, ensuring smooth release of the limiting position of the split cover latch 2 after pressure relief. The snap-fit ​​structure ensures smooth transmission of driving force and convenient disassembly and assembly, facilitating individual disassembly and maintenance in confined spaces.

[0116] In some embodiments, the first push block 3 has a through-hole with a connecting slot on the wall surface near the connecting rod 41. The radial dimension of the connector of the connecting rod 41 is larger than the diameter of the through-hole, so that the connector of the connecting rod 41 will not come out of the slot, and the connecting rod 41 can pull and drag the first push block 3 during the return stroke. The length of the slot along the sliding direction of the first push block 3 is greater than the axial dimension of the connector at the end of the connecting rod 41, so that a retraction gap 321 is formed between the connector and the slot along the sliding direction of the first push block 3. The connector of the connecting rod 41 abuts against the wall surface of the slot away from the through-hole to apply force to the first push block 3; when the connecting rod 41 retracts, the connector engages with the outer wall surface of the through-hole to achieve dragging and traction. Specifically, the through-hole can be a through hole 17 or a notch.

[0117] In some embodiments, the limiting cover plate 11 is provided with a limiting rib 12 protruding from it. The limiting rib 12 is disposed in the limiting space and divides the limiting space into a first space and a second space. The second push block 5 is movably disposed in the first space, and at least a portion of the first push block 3 is movably disposed in the second space.

[0118] By setting the limiting rib 12, the limiting space can be divided into a first space and a second space to limit and guide the second push block 5 and the first push block 3 respectively. The movement of the second push block 5 and the first push block 3 can be limited and guided in the moving direction, ensuring the smoothness and accuracy of the movement of the second push block 5 and the first push block 3, preventing the second push block 5 and the first push block 3 from deviating, tilting or jamming, and also avoiding the second push block 5 and the first push block 3 from interfering with each other in movement.

[0119] In a specific embodiment, the second push block 5 and the first push block 3 move along the first direction, and there are two limiting ribs 12. The two limiting ribs 12 are distributed at intervals along the second direction. The two limiting ribs 12, the limiting cover plate 11 and the inner cover 1 form the first space. The first space is provided on at least one side of the second direction; wherein, the first direction is perpendicular to the second direction.

[0120] Limiting ribs 12 are provided on both sides of the second push block 5 to better limit the two sides of the second push block 5, so as to obtain better limiting and guiding effects. The limiting ribs 12, together with the limiting cover plate 11 and the inner cover 1, form a first space, which can limit the second push block 5 in any direction other than the moving direction of the second push block 5.

[0121] In some further embodiments, a positioning post protrudes from the side of the limiting rib 12 facing away from the limiting cover plate 11, and a positioning hole is provided on the inner cover 1, with the positioning post being inserted into the positioning hole.

[0122] By inserting the positioning pin and positioning hole, the positioning of the limiting cover 11 and the inner cover 1 can be realized, which facilitates the connection between the limiting cover 11 and the inner cover 1.

[0123] In some embodiments, the limiting cover plate 11 is provided with a first connecting plate 18, the first connecting plate 18 protruding in the direction of the inner cover 1, and the first connecting plate 18 is provided with a first protrusion 181 for connecting the first elastic member.

[0124] The limiting cover 11 has a first connecting plate 18 protruding into the limiting space, and a first protrusion 181 for engaging the first elastic member is provided on the first connecting plate 18. The protruding first connecting plate 18 can extend into the assembly area of ​​the first push block 3 inside the limiting space without occupying additional assembly space, thus avoiding structural interference with the first push block 3 and the second push block 5 inside the limiting space. The first protrusion 181 provides a positioning mounting point for the first elastic member, which has a higher connection reliability compared to the surface contact mounting method, avoiding problems such as dislocation of the first elastic member during expansion and contraction.

[0125] For a micro pressure cooker, during the pressure cooking mode, the drive valve 42 drives the connecting rod 41 to move closer to the lid latch 2, applying force to the first push block 3 to move it to the limit position. Simultaneously, the first elastic element is compressed, limiting the lid latch 2 and preventing the lid assembly from opening. At this time, the first push block 3 blocks the lid latch 2, locking it in the locked position. Simultaneously, the drive assembly 4, in conjunction with the sealing element 10, seals the first steam passage 9, creating a sealed pressure environment inside the pot, completely locking the lid assembly and eliminating the risk of burns caused by opening the lid under pressure. At this time, the push rod 50 is in the retracted position. During this stage, the rigid push positioning of the connecting rod 41 of the drive assembly 4, combined with the compression and energy storage of the first elastic element, achieves stable locking of the lid latch 2 without loosening or displacement deviation, significantly improving safety during pressure cooking.

[0126] According to normal operating logic, after cooking ends and the pressure is released, the drive valve 42 will drive the connecting rod 41 to retract and reset away from the lid latch 2, and push open the sealing part 10. The pushing force of the connecting rod 41 on the first push block 3 will disappear, and the pressure inside the pot will be completely released. The first steam channel 9 and the second steam channel 40 will be connected. Steam will enter the second steam channel 40 through the first steam channel 9 and push the push rod 50 from the storage position to the impact position when it passes the limit port 401. During the movement, the push rod 50 will apply an impact force to the pressing end 23, breaking the state in which the lid latch 2 firmly presses the first push block 3, reducing the pressing force of the lid latch 2 on the first push block 3. The pre-compressed first elastic element will quickly rebound and push the first push block 3 back to the separation position, releasing the limit on the lid latch 2. After the pressure inside the pot returns to zero, the lid can be opened normally. At the same time, the retraction gap 321 reserved between the structures can avoid rigid collisions between components, reduce wear, and extend the service life of the structure.

[0127] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by this application.

Claims

1. A cover assembly, characterized in that, include: Inner cover (1); The cover latch (2) is rotatably connected to the inner cover (1) and has a locking position for locking the cover assembly and an unlocking position for unlocking the cover assembly; the cover latch (2) includes a pressing end (23). The first push block (3) is movably disposed on the inner cover (1), having a limiting position that cooperates with the pressing end (23) to limit the opening buckle (2) to the locking position, and a separating position that separates from the pressing end (23); The first steam passage (9) is provided on the inner cover (1); The sealing element (10) is movably disposed on the inner cover (1) and has a sealing position for sealing the first steam passage (9) and a connecting position for opening the first steam passage (9); The driving component (4) is at least capable of driving the first push block (3) to move to the limiting position and driving the blocking component (10) to move from the blocking position to the connecting position; The reset member (20) is used to move the first push block (3) to the separation position when the force exerted by the drive assembly (4) on the first push block (3) is released; The second steam passage (40) has an inlet end connected to the outlet of the first steam passage (9) and an outlet end connected to the external environment; the second steam passage (40) is provided with a limiting port (401), which is located between the pressing end (23) and the inner cover (1); The push rod (50) is movably disposed at the limiting port (401), having an impact position that extends out of the limiting port (401) and applies an impact force to the pressing end (23), and a storage position that returns to the limiting port (401).

2. The cover assembly according to claim 1, characterized in that, It also includes a resistance element (60), which protrudes from the inner wall of the second steam channel (40) to reduce the cross-sectional area of ​​the flow passage of the second steam channel (40).

3. The cover assembly according to claim 2, characterized in that, In the steam flow direction of the second steam channel (40), the resistance member (60) is offset from the limiting port (401) and is disposed close to the limiting port (401); And / or, in the steam flow direction of the second steam passage (40), the resistance element (60) is located upstream of the limiting port (401).

4. The cover assembly according to claim 1, characterized in that, A limiting tube (402) protrudes from the second steam channel (40), the limiting tube (402) is connected to the second steam channel (40), and the opening of the limiting tube (402) away from the second steam channel (40) is the limiting port (401).

5. The cover assembly according to claim 4, characterized in that, The inner peripheral wall of the limiting tube (402) is provided with a first limiting protrusion (403); the outer peripheral wall of the top rod (50) is provided with a second limiting protrusion (501), the second limiting protrusion (501) includes two that are spaced apart along the axial direction of the top rod (50), and the first limiting protrusion (403) is disposed between the two second limiting protrusions (501).

6. The cover assembly according to any one of claims 1 to 5, characterized in that, Also includes: The outer cover (70) is connected to the inner cover (1), and the outer cover (70) is provided with a steam port (701). A steam recovery chamber (801) is disposed between the first steam channel (9) and the steam port (701). The steam recovery chamber (801) is connected to the outlet of the first steam channel (9) and the inlet of the second steam channel (40). A steam exhaust chamber (802) is disposed between the first steam channel (9) and the steam port (701). The steam exhaust chamber (802) is connected to the outlet end of the second steam channel (40) and the steam port (701).

7. The cover assembly according to claim 6, characterized in that, Also includes: A steam chamber (80) is disposed between the first steam channel (9) and the steam port (701); A partition (803) is disposed in the inner cavity of the steam chamber (80) and divides the inner cavity of the steam chamber (80) into the steam recovery chamber (801) and the steam exhaust chamber (802).

8. The cover assembly according to claim 7, characterized in that, The second steam channel (40) is bent into a U-shaped groove structure. The inlet end and the outlet end are respectively located on both sides of the steam chamber (80). The drive assembly (4) and the first push block (3) are located inside the U-shaped groove structure.

9. A cooking device, characterized in that, Includes the cover assembly according to any one of claims 1 to 8.

10. The cooking apparatus according to claim 9, characterized in that, The cooking equipment is a rice cooker or a pressure cooker.

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