Cooking utensil pot cover and cooking utensil

Abstract

The utility model relates to the technical field of cooking utensils, in particular to a cooking utensil pot cover and a cooking utensil, and aims to solve the problem that the heat preservation effect in a pot is poor in the prior art. The cover comprises a cover body, a vent hole is formed in the cover body; a negative pressure vent valve used for opening and closing the vent hole and an operation assembly used for controlling the negative pressure vent valve to open the vent hole when the cover body is in the negative pressure state are arranged at the vent hole. When the negative pressure vent valve closes the vent hole, negative pressure is generated in the pot body, and loss of heat in the pot body can be slowed down; due to negative pressure in the pot body, the cover body can cover the pot body more tightly, heat in the pot body is prevented from flowing out through a gap between the cover body and the pot body, and then a good heat preservation effect is achieved. Besides, when negative pressure is generated in the pot body, only the operation assembly needs to be operated to control the negative pressure vent valve to open the vent hole, so that external air enters the pot body, the pressure in the pot body is balanced, the cover body can be easily opened, and the operation is simple and convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of cooking utensils, and particularly relates to a cooking utensil pot cover and the cooking utensil. Background Art

[0002] The temperature of food affects its taste. Compared to cold food, which suppresses the palate, hot food stimulates the sense of taste and better reveals the flavor of the food, making hot food generally more palatable. When cooking is complete and the lid is closed, holes in the lid or gaps between the lid and the pot body prevent the pot from forming a sealed space. This causes the food inside to cool and cool, affecting its taste. However, if a sealed space is formed inside the pot without a gas vent, negative pressure will be generated, causing the lid to remain tightly attached to the pot, making it difficult to open. Utility Model Content

[0003] The utility model provides a cooking utensil pot cover and the cooking utensil, aiming to solve the problem of poor heat preservation effect in the pot in the prior art.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] In a first aspect, the utility model provides a cooking utensil pot cover, comprising a cover body;

[0006] The cover body is provided with a vent hole; the vent hole is provided with a negative pressure vent valve for opening and closing the vent hole, and an operating component for controlling the negative pressure vent valve to open the vent hole when the cover body is in a negative pressure state.

[0007] A further solution: the operating assembly includes a button and a tilting lever; the two ends of the tilting lever are respectively provided with a pressing end and a tilting end, the middle portion of the tilting lever is hinged to the cover body, and the pressing end is located below the button, and the tilting end abuts against the negative pressure ventilation valve;

[0008] When the button is pressed, the lower end of the button moves downward against the pressing end, and the tilting end moves upward and pushes up the negative pressure vent valve; the vent hole opens;

[0009] When the button is released, the tilting rod is reset, and the button is separated from the pressing end, and the vent hole is closed under the action of the negative pressure vent valve.

[0010] Based on the above solution, when the button is pressed, the hinged structure of the tilting lever causes the pressing end to descend and the tilting end to rise, thereby enabling the tilting end to lift the negative pressure vent valve, thereby opening the vent hole. The button, tilting lever, and negative pressure vent valve in this solution have a simple structure and are easy to operate.

[0011] A further solution: the negative pressure vent valve includes a valve stem; a sealing portion and a limiting portion are provided at the lower portion of the valve stem; the valve stem is arranged on the cover body and passes through the vent hole, and the sealing portion is located above the vent hole, and the limiting portion is located below the vent hole;

[0012] When the tilted end lifts the negative pressure vent valve, the sealing portion separates from the vent hole, and the vent hole opens;

[0013] When the tilting lever is reset, under the action of gravity, the sealing portion abuts against the vent hole and blocks the vent hole, and the vent hole is closed.

[0014] A further solution: a first elastic member is provided between the lower portion of the pressing end and the cover body for resetting the tilting rod;

[0015] When the button is pressed, the first elastic member is compressed; when the button is released, the first elastic member drives the tilting lever to return to its original position.

[0016] Based on the above solution, after releasing the button, the first elastic member resets the lever, which in turn resets the button above the pressing end and the negative pressure vent valve abutting against the top tilting end. This solution can achieve fully automatic reset of the button, lever, and negative pressure vent valve, eliminating the need for manual operation and facilitating next use.

[0017] A further solution: the sealing portion is an upper sealing ring sleeved on the valve stem; the limiting portion is a lower sealing ring detachably sleeved on the valve stem.

[0018] Based on the above solution, the sealing ring can achieve a good sealing effect. In addition, because the lower sealing ring is located below the vent hole and is detachably mounted on the valve stem, when the negative pressure vent valve is lifted, the lower sealing ring can be separated from the valve stem due to the obstruction of the vent hole, thereby allowing the negative pressure vent valve to be removed separately for easy cleaning or maintenance.

[0019] A further solution: the inner walls of the upper sealing ring and the lower sealing ring each have a clamping portion extending toward the middle;

[0020] An upper clamping groove is provided on the valve stem, and the clamping portion of the upper sealing ring is clamped in the upper clamping groove;

[0021] The valve stem is provided with a lower clamping groove, and the clamping portion of the lower sealing ring is clamped in the lower clamping groove.

[0022] Based on the above solution, the structure of the card slot and the card connecting part is simple, the manufacturing process is simple, and the card slot and the card connecting part cooperate with each other, so that the upper sealing ring and the lower sealing ring can be firmly mounted on the valve stem respectively, thereby extending the service life of the negative pressure ventilation valve.

[0023] A further solution: a pipe is provided inside the valve stem, and a lower end of the pipe is located inside the cover body, and an upper end is located outside the cover body;

[0024] A valve cap is provided at the upper end of the valve stem and located at the upper end of the pipeline, and a valve cap opening is provided at the upper end of the valve cap; a sealing ball is provided in the valve cap for opening and closing the valve cap opening;

[0025] When the vent hole is in a closed state and the sealing ball opens the valve bonnet opening, the interior of the cover body is communicated with the outside through the pipeline.

[0026] Based on the above solution, to ensure the safety of the cover, a threshold value is set for the negative pressure that the cover can withstand. When the negative pressure on the cover exceeds the threshold value, the pressure outside the cover will press the sealing ball downward, causing the valve cap opening to open. This allows air outside the cover to enter the pipe through the valve cap opening and then into the interior of the cover, causing the negative pressure inside the cover to return to above the threshold value.

[0027] A further solution: a second elastic member is provided below the sealing ball, and the lower end of the second elastic member abuts against the upper end of the pipe;

[0028] When the second elastic member is compressed under negative pressure, the sealing ball opens the valve bonnet opening; when the second elastic member is reset, the sealing ball closes the valve bonnet opening.

[0029] Based on the above solution, when the negative pressure inside the cover body returns to above the threshold, the second elastic member can drive the sealing ball to reset, close the valve cap opening, and prevent the inside of the cover body from completely releasing pressure.

[0030] A further solution: the cover body includes a handle; a ventilation channel connected to the ventilation hole is opened inside the handle and located at the ventilation hole; the negative pressure ventilation valve is arranged in the ventilation channel, and the lower end of the negative pressure ventilation valve passes through the ventilation hole;

[0031] The tilting lever is hingedly arranged in the handle; the button is arranged on the handle, and the upper end of the button passes through the handle and is located outside the handle, and the lower end of the button is located in the handle and close to the pressing end of the tilting lever.

[0032] Based on the above solution, the handle is convenient for taking the pot lid. In addition, the button, the tilting lever and the negative pressure vent valve are all located inside the handle, concentrated on the handle, and do not occupy other space on the lid.

[0033] In a second aspect, the present invention provides a cooking utensil, comprising a pot body and a cooking utensil pot cover as described in any one of the first aspects; the pot body is covered on the pot body;

[0034] When the vent hole is opened, the interior of the pot body is communicated with the outside through the vent hole.

[0035] The beneficial effects of the utility model are:

[0036] In the present invention, the lid is installed on the pot body, and the interior of the pot body can only communicate with the outside world through the vent. When the negative pressure vent valve closes the vent, a closed space is formed inside the pot body, and negative pressure is generated inside the pot body. On the one hand, under the negative pressure state, the molecular weight of the air inside the pot body is small, which can slow down the loss of heat inside the pot body; on the other hand, under the negative pressure state, the lid can be more tightly installed on the pot body, reducing the heat inside the pot body from flowing out through the gap between the lid and the pot body. In summary, when the interior of the pot body is in a negative pressure state, the cooling speed of the food can be greatly reduced, achieving a better heat preservation effect.

[0037] In addition, when negative pressure is generated in the pot body, the cover body will be tightly covered on the pot body under the negative pressure state; in order to open the cover body, it is only necessary to operate the operating component, and the operating component controls the negative pressure vent valve to open the vent hole, so that the outside air can enter the pot body, thereby balancing the pressure in the pot body, and the cover body can be easily opened, which is simple and convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0039] Figure 1 This is a schematic diagram of the structure of the utility model when the vent hole is closed;

[0040] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure at A in the middle;

[0041] Figure 3This is a schematic diagram of the structure of the utility model when the vent hole is open;

[0042] Figure 4 yes Figure 3 Schematic diagram of the enlarged structure at B in the middle;

[0043] Figure 5 This is a structural diagram of the valve bonnet opening when the cover body is in a negative pressure state in the present invention;

[0044] Figure 6 yes Figure 5 Schematic diagram of the enlarged structure at C in the middle;

[0045] Figure 7 The utility model is a structural schematic diagram of a cooking utensil pot cover.

[0046] Description of the numbers in the figure:

[0047] 1-cover; 11-vent; 2-handle; 21-vent channel; 22-grip; 3-valve stem; 31-sealing part; 32-limiting part; 33-pipeline; 4-valve bonnet; 41-valve bonnet opening; 42-sealing ball; 43-second elastic member; 5-button; 51-limiting step; 6-tilt rod; 61-pressing end; 62-tilt end; 63-bump; 64-first elastic member. DETAILED DESCRIPTION

[0048] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0049] Example 1:

[0050] like Figure 1-4 As shown, this embodiment provides a cooking utensil pot cover, comprising a cover body 1;

[0051] The cover body 1 is provided with a vent hole 11; the vent hole 11 is provided with a negative pressure vent valve for opening and closing the vent hole 11, and an operating component for controlling the negative pressure vent valve to open the vent hole 11 when the cover body 1 is in a negative pressure state.

[0052] A more specific example of the operation component is:

[0053] like Figure 2 and Figure 4As shown, the operating assembly includes a button 5 and a tilting rod 6; the two ends of the tilting rod 6 are respectively provided with a pressing end 61 and a tilting end 62, the middle part of the tilting rod 6 is hinged to the cover body 1, and the pressing end 61 is located below the button 5, and the tilting end 62 abuts against the negative pressure ventilation valve;

[0054] When the button 5 is pressed, the lower end of the button 5 moves downward against the pressing end 61, and the tilting end 62 moves upward and pushes up the negative pressure vent valve; the vent hole 11 opens;

[0055] When the button 5 is released, the tilting rod 6 is reset, and the button 5 is separated from the pressing end 61 , and the vent hole 11 is closed under the action of the negative pressure vent valve.

[0056] On the basis of the above scheme, Figure 2 、 Figure 4 and Figure 7 As shown, the cover body 1 includes a handle 2; a ventilation channel 21 communicating with the ventilation hole 11 is opened inside the handle 2 and located at the ventilation hole 11; the negative pressure ventilation valve is arranged in the ventilation channel 21, and the lower end of the negative pressure ventilation valve passes through the ventilation hole 11;

[0057] The tilting lever 6 is hingedly arranged in the handle 2; the button 5 is arranged on the handle 2, and the upper end of the button 5 passes through the handle 2 and is located outside the handle 2, and the lower end of the button 5 is located in the handle 2 and close to the pressing end 61 of the tilting lever 6.

[0058] When the button 5 on the handle 2 is pressed, the lower end of the button 5 descends against the pressing end 61 of the tilting rod 6, so that the top tilting end 62 of the tilting rod 6 tilts up and lifts up the negative pressure ventilation valve, and the vent 11 opens. The air outside the cover body 1 can enter the ventilation channel 21 and enter the inside of the cover body 1 through the vent 11.

[0059] When the button 5 is released, the tilting rod 6 is reset, and the tilting end 62 on the tilting rod 6 will not lift the negative pressure ventilation valve. The negative pressure ventilation valve blocks the vent 11 under the action of gravity; the air outside the cover body 1 enters the ventilation channel 21 and cannot enter the inside of the cover body 1 through the vent 11.

[0060] Specifically, the design scheme for hinged connection of the tilting rod 6 in the handle 2 can be: an insertion column is provided on the handle 2, and the insertion column passes through the middle part of the tilting rod 6, so that the tilting rod 6 is hinged in the handle 2; when the pressing end 61 on the tilting rod 6 descends, the top tilting end 62 rises.

[0061] A first elastic member 64 for resetting the tilting rod 6 is provided between the pressing end 61 of the tilting rod 6 and the cover body 1; wherein the tilting rod 6 is hinged in the handle 2, so that the upper end of the first elastic member 64 abuts against the lower surface of the pressing end 61, and the lower end of the first elastic member 64 abuts against the inner wall of the handle 2.

[0062] like Figure 3 and Figure 4 As shown, when the button 5 is pressed, the first elastic member 64 is compressed; when the button 5 is released, the first elastic member 64 drives the tilting rod 6 to reset. Figure 2 As shown, when the tilting rod 6 is reset, the tilting rod 6 is in a horizontal state; when the tilting rod 6 is in a horizontal state, the tilting end 62 is separated from the negative pressure vent valve and will not lift up the negative pressure vent valve.

[0063] It should be noted that: since the pressing end 61 is located below the button 5 and is arranged close to the button 5, when the first elastic member 64 drives the tilting lever 6 to reset, it also drives the button 5 to reset.

[0064] like Figure 2 As shown, a limiting step 51 is provided on one side edge of the bottom of the button 5. When the button 5 is reset, the limiting step 51 abuts against the inner wall of the handle 2 to prevent the elastic force of the first elastic member 64 from pushing the button 5 out of the handle 2.

[0065] In a more specific example of the above solution, the first elastic member 64 may be a spring. To ensure that the spring is securely positioned below the pressing end 61 and prevents displacement, a downwardly protruding block 63 is provided on the lower surface of the pressing end 61, and the block 63 is plugged into the upper end of the spring.

[0066] In addition, the handle 2 is provided with a grip portion 22 for conveniently taking the pot lid.

[0067] like Figure 2 and Figure 4 As shown, a more specific example of the negative pressure vent valve is as follows: the negative pressure vent valve includes a valve stem 3; a sealing portion 31 and a limiting portion 32 are provided at the lower portion of the valve stem 3; the valve stem 3 is disposed on the cover 1 (more specifically, the valve stem 3 is located in the ventilation channel 21) and passes through the vent hole 11, and the sealing portion 31 is located above the vent hole 11, and the limiting portion 32 is located below the vent hole 11;

[0068] When the tilted end 62 lifts the negative pressure vent valve, the sealing portion 31 is separated from the vent hole 11, and the vent hole 11 is opened;

[0069] When the tilting lever 6 is reset, under the action of gravity, the sealing portion 31 abuts against the vent hole 11 and blocks the vent hole 11 , and the vent hole 11 is closed.

[0070] In a more specific example of the above solution, the sealing portion 31 may be an upper sealing ring sleeved on the valve stem 3, and the limiting portion 32 may be a lower sealing ring detachably sleeved on the valve stem 3. The diameters of the upper and lower sealing rings are both larger than the diameter of the vent hole 11.

[0071] In order to ensure that both the upper sealing ring and the lower sealing ring are securely mounted on the valve stem 3, the following cases may be adopted but are not limited to:

[0072] The inner walls of both the upper and lower sealing rings have a locking portion extending toward the middle. The valve stem 3 is provided with an upper locking groove, into which the locking portion of the upper sealing ring is engaged. The valve stem 3 is provided with a lower locking groove, into which the locking portion of the lower sealing ring is engaged.

[0073] The upper sealing ring and the lower sealing ring may be made of rubber or silicone, etc. The user can lift the negative pressure vent valve to separate the valve stem 3 from the lower sealing ring, thereby separating the negative pressure vent valve from the vent hole 11 and removing it from the vent channel 21, making it easier to clean or repair the negative pressure vent valve.

[0074] like Figure 1 、 Figure 2 、 Figure 5 and Figure 6 As shown, based on the above solution, a pipe 33 is provided inside the valve stem 3, and the lower end of the pipe 33 is located inside the cover body 1, and the upper end is located outside the cover body 1;

[0075] A valve bonnet 4 is provided at the upper end of the valve stem 3 and located at the upper end of the pipe 33. The upper end of the valve bonnet 4 is provided with a valve bonnet opening 41. A sealing ball 42 is provided in the valve bonnet 4 for opening and closing the valve bonnet opening 41. The sealing ball 42 can be made of metal, silicone, rubber, or other materials.

[0076] like Figure 5 and Figure 6 As shown, when the vent hole 11 is in a closed state and the sealing ball 42 opens the valve cap opening 41 , the interior of the cover body 1 is communicated with the outside through the pipe 33 .

[0077] like Figure 4As shown, it should be noted that: since the diameter of the bottom cross-section of the valve cap 4 is larger than the diameter of the valve stem 3, when the top tilting end 62 on the tilting rod 6 is tilted, the top tilting end 62 rests against the bottom of the valve cap 4 and pushes up the negative pressure ventilation valve.

[0078] In order to ensure that the valve cap 4 can be firmly arranged on the upper end of the valve stem 3, the clamping structure between the valve cap 4 and the valve stem 3 can adopt but is not limited to the following cases:

[0079] The upper end of the valve stem 3 and the upper end of the pipe 33 are provided with a folded portion folded outward; a slot is provided in the inner wall of the valve cap 4, and the valve cap 4 is covered on the upper end of the valve stem 3 and the folded portion is inserted into the slot.

[0080] A more specific example of the above solution is as follows: a second elastic member 43 is provided below the sealing ball 42 , and the lower end of the second elastic member 43 abuts against the upper end of the pipe 33 ;

[0081] When the second elastic member 43 is compressed under negative pressure, the sealing ball 42 opens the valve bonnet opening 41 ; when the second elastic member 43 is reset, the sealing ball 42 closes the valve bonnet opening 41 .

[0082] As a preferred solution of the second elastic member 43 , the second elastic member 43 may be a spring, and the upper end of the spring abuts against the sealing ball 42 , and the lower end of the spring abuts against the upper end of the pipe 33 .

[0083] Example 2:

[0084] This embodiment provides a cooking utensil, comprising a pot body and a cooking utensil pot cover as described in the first embodiment; the cover body 1 is arranged on the pot body;

[0085] When the vent hole 11 is opened, the interior of the pot body is communicated with the outside through the vent hole 11 .

[0086] Specifically, when cooking is completed using the pot and the lid 1 is placed on, the gas inside the pot contracts during cooling, causing the pressure of the gas inside the pot to decrease, thereby generating a negative pressure inside the pot. When the lid 1 is placed on the pot, the vent 11 is used to connect the inside of the pot with the outside of the lid 1. Therefore, when the vent 11 is opened, air outside the lid 1 can enter the pot through the vent 11.

[0087] The following is a further description of the present invention in conjunction with its working principle:

[0088] When the pot body is under negative pressure, when the lid body 1 is opened, by pressing the button 5 of the handle 2, the bottom of the button 5 abuts against the pressing end 61 of the tilting rod 6 and descends, the first elastic member 64 is compressed, the tilting end 62 of the tilting rod 6 rises, and the tilting end 62 abuts against the bottom of the valve cap 4 to lift the valve stem 3, the sealing portion 31 rises and separates from the vent 11, the vent 11 opens, and the air outside the lid body 1 enters the ventilation channel 21 and then enters the pot body through the vent 11, thereby balancing the pressure inside the pot body. The lid body 1 is then removed from the pot body.

[0089] After the cover 1 is removed and the button 5 is released, the tilting lever 6 is reset under the action of the first elastic member 64, and the button 5 is reset with it. After the tilting lever 6 is reset, the tilting end 62 is separated from the valve cap 4, and the sealing portion 31 on the valve stem 3 blocks the vent 11 under the action of gravity.

[0090] In addition, when the negative pressure in the pot body exceeds a threshold value, the atmospheric pressure outside the cover body 1 will press the sealing ball 42 downward, the second elastic member 43 will be compressed, the valve bonnet opening 41 will be opened, and the air outside the cover body 1 will enter the pipe 33 through the valve bonnet opening 41 and enter the pot body, ensuring that the negative pressure in the pot body does not exceed the threshold value.

[0091] The present invention is not limited to the above optional implementation methods. Under the premise of not conflicting with each other, the various solutions can be combined arbitrarily. Anyone can derive other forms of products under the inspiration of the present invention. However, no matter what changes are made in their shape or structure, all technical solutions that fall within the scope defined by the claims of the present invention fall within the scope of protection of the present invention.

Claims

1. A cooking utensil pot cover, characterized in that: including a cover body; The cover body is provided with a vent hole; the vent hole is provided with a negative pressure vent valve for opening and closing the vent hole, and an operating component for controlling the negative pressure vent valve to open the vent hole when the cover body is in a negative pressure state; The operating assembly includes a button and a tilting rod; the two ends of the tilting rod are respectively provided with a pressing end and a tilting end, the middle portion of the tilting rod is hinged to the cover body, and the pressing end is located below the button, and the tilting end abuts against the negative pressure ventilation valve; When the button is pressed, the lower end of the button moves downward against the pressing end, and the tilting end moves upward and pushes up the negative pressure vent valve; the vent hole opens; When the button is released, the tilting rod is reset, and the button is separated from the pressing end, and the vent hole is closed under the action of the negative pressure vent valve.

2. The cooking utensil pot cover according to claim 1, characterized in that: The negative pressure vent valve includes a valve stem; a sealing portion and a limiting portion are provided at the lower portion of the valve stem; the valve stem is arranged on the cover body and passes through the vent hole, with the sealing portion located above the vent hole and the limiting portion located below the vent hole; When the tilted end lifts the negative pressure vent valve, the sealing portion separates from the vent hole, and the vent hole opens; When the tilting lever is reset, under the action of gravity, the sealing portion abuts against the vent hole and blocks the vent hole, and the vent hole is closed.

3. A cooking utensil pot cover according to claim 1 or 2, characterized in that: A first elastic member is provided between the lower portion of the pressing end and the cover body for resetting the tilting rod; When the button is pressed, the first elastic member is compressed; when the button is released, the first elastic member drives the tilting lever to return to its original position.

4. The cooking utensil pot cover according to claim 2, characterized in that: The sealing portion is an upper sealing ring sleeved on the valve stem; the limiting portion is a lower sealing ring detachably sleeved on the valve stem.

5. The cooking utensil pot cover according to claim 4, characterized in that: The inner walls of the upper sealing ring and the lower sealing ring each have a circle of clamping parts extending toward the middle; An upper clamping groove is provided on the valve stem, and the clamping portion of the upper sealing ring is clamped in the upper clamping groove; The valve stem is provided with a lower clamping groove, and the clamping portion of the lower sealing ring is clamped in the lower clamping groove.

6. The cooking utensil pot cover according to claim 2, characterized in that: A pipe is provided inside the valve stem, and a lower end of the pipe is located inside the cover body, and an upper end of the pipe is located outside the cover body; A valve cap is provided at the upper end of the valve stem and located at the upper end of the pipeline, and a valve cap opening is provided at the upper end of the valve cap; a sealing ball is provided in the valve cap for opening and closing the valve cap opening; When the vent hole is in a closed state and the sealing ball opens the valve bonnet opening, the interior of the cover body is communicated with the outside through the pipeline.

7. The cooking utensil pot cover according to claim 6, characterized in that: A second elastic member is provided below the sealing ball, and the lower end of the second elastic member abuts against the upper end of the pipe; When the second elastic member is compressed under negative pressure, the sealing ball opens the valve bonnet opening; when the second elastic member is reset, the sealing ball closes the valve bonnet opening.

8. The cooking utensil pot cover according to claim 1, characterized in that: The cover body includes a handle; a ventilation channel connected to the ventilation hole is opened inside the handle and located at the ventilation hole; the negative pressure ventilation valve is arranged in the ventilation channel, and the lower end of the negative pressure ventilation valve passes through the ventilation hole; The tilting lever is hingedly arranged in the handle; the button is arranged on the handle, and the upper end of the button passes through the handle and is located outside the handle, and the lower end of the button is located in the handle and close to the pressing end of the tilting lever.

9. A cooking utensil, characterized in that: The cooking utensil comprises a pot body and a pot cover according to any one of claims 1 to 8; the pot cover is arranged on the pot body; When the vent hole is opened, the interior of the pot body is communicated with the outside through the vent hole.

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