Pressure cooking utensil

Abstract

The pressure cooking utensil comprises a pot body and a pot cover, the pot cover comprises a cover body and a lock cover, the lock cover can rotate relative to the cover body so as to have a locking state in which the lock cover and the pot body can be locked and an unlocking state in which the lock cover and the pot body can be unlocked, and the lock cover comprises a top wall and a side wall which surrounds the periphery of the top wall and extends downwards; a containing space is formed between the side wall and the cover body, the cover body is provided with a rolling piece located in the containing space, and the rolling piece can make contact with the outer wall of the side wall so that the lock cover can drive the rolling piece to rotate. The side wall is high, and the acting distance between the rolling piece and the side wall is large, so that when the lock cover makes contact with the rolling piece, contact between the lock cover and the rolling piece is more stable, the rolling piece can guide the lock cover more stably, and the lock cover is prevented from deflecting. And the deformation quantity of the side wall after upward pressing is small, and under the state that the rolling piece is not in contact with the side wall, even if the side wall slightly deforms, the risk of interference with the rolling piece is small.

Description

Technical Field

[0001] The utility model belongs to the technical field of kitchen appliances, and particularly relates to a pressure cooking appliance. Background Art

[0002] The lid of a pressure cooking appliance (such as an electric pressure cooker) usually includes a face lid and a locking lid. The locking lid can be rotated relative to the face lid under the control of a user to lock or unlock it with the pot body. After the locking lid is locked with the pot body, the pressure cooking appliance can normally build pressure for pressure cooking.

[0003] Since the locking lid can rotate relative to the face lid, the design of the gap between the outer peripheral side of the locking lid and the inner wall of the face lid becomes one of the difficulties of the product. If there is no gap or the gap is too small between the locking lid and the face lid, sliding friction will occur between the two during the rotation of the locking lid, the resistance received by the locking lid is large, it is easy to wear and affects the user's operation feel. And after the pressure in the pot builds up, the locking lid may deform to a certain extent under the action of air pressure, and then squeeze the face lid, there is a risk of cracking and damage. When the gap between the locking lid and the face lid is too large, although it can leave space for the deformation of the locking lid and reduce the movement interference, when the user operates the locking lid to rotate, the locking lid will shake greatly inside the face lid, which not only affects the operation feel, but also generates abnormal noises.

[0004] Chinese Patent CN215383169U discloses a cooking appliance for preventing the inner lining from being scratched. A sunken platform is arranged in the middle of the locking lid, and a roller is arranged on the inner lining corresponding to the sunken platform. The roller contacts the side wall of the sunken platform to change the sliding friction between the inner lining and the locking lid into rolling friction, and reduce the frictional resistance when the locking lid rotates. At the same time, the contact between the roller and the locking lid can reduce the shaking of the locking lid.

[0005] However, in the above solution, the roller acts on the side wall of the inner ring step of the locking lid. Due to the limitation of the height of the locking lid itself, the depth of the inner ring sunken platform is relatively shallow, and then the straight edge section of the side wall of the sunken platform is relatively small, resulting in a relatively small distance between the roller and the locking lid, the free rotation of the roller is restricted, and it cannot play a good guiding role for the locking lid, which will cause the movement of the locking lid to deflect, and the user's feeling of opening and closing the lid is not good.

[0006] In addition, the mating position of the roller and the lock cover is located within the inner circle of the lock cover, closer to the center of the lock cover. During the upward pressing and pressure maintaining stages, the central region of the lock cover undergoes a greater deformation under the action of the internal pressure of the pot compared to the edge region. Once deformation occurs at the sunken platform, it is very likely to interfere with the roller, causing the roller not only to fail to reduce friction but instead make the movement of the lock cover more stuck. To avoid this structural interference under pressure, there are limitations on the outer diameter and height of the roller. In other words, the distance between the roller and the side wall of the sunken platform on the inner side of the lock cover must be relatively large, which results in the roller playing a relatively small role or even no role during the movement of the lock cover and having no improvement effect on the user's feeling when opening the cover. Summary of the Invention

[0007] The present invention provides a pressure cooking appliance to solve the problems that it is difficult to design the gap between the lock cover and the face cover, and too large or too small a gap will affect the feeling when opening and closing the cover, and the existing roller structure does not cooperate stably with the lock cover and cannot effectively guide the rotation of the lock cover.

[0008] The technical solution adopted by the present invention is as follows:

[0009] A pressure cooking appliance includes a pot body and a pot cover. The pot cover includes a cover body and a lock cover. The lock cover can rotate relative to the cover body to have a locked state for locking with the pot body and an unlocked state for unlocking from the pot body. The lock cover includes a top wall and a side wall surrounding the outer periphery of the top wall and extending downward. There is an accommodation space between the side wall and the cover body. The cover body is provided with a rolling member located within the accommodation space. The rolling member can contact the outer wall of the side wall so that the lock cover can drive the rolling member to rotate.

[0010] The pressure cooking appliance of the present invention further has the following additional technical features:

[0011] The side wall includes a first extension section and a second extension section located below the first extension section. There is a horizontally extending section extending outward between the first extension section and the second extension section, so that the diameter of the first extension section is smaller than that of the second extension section. The rolling member is correspondingly arranged for the first extension section to be able to contact the first extension section.

[0012] The cover body is provided with a mounting post for mounting the rolling member. The length of the mounting post is less than the height of the first extension section, so that there is a vertical gap between the mounting post and the second extension section.

[0013] The cover body is provided with a mounting rib position extending upward into the accommodation space. The rolling member is fixed to the mounting rib position from top to bottom.

[0014] The mounting rib position includes a body and a mounting post located above the body. The circumferential side of the mounting post is provided with a limiting rib. The rolling member includes a roller and a limiting portion. The limiting portion and the limiting rib enclose a mounting position, and the roller is sleeved in the mounting position.

[0015] The length of the installation position along the axial direction of the installation column is greater than the axial length of the roller, so that there is a rolling gap between the limiting part and the roller.

[0016] The side wall includes a first extension section and a second extension section located below the first extension section. There is a laterally extending section extending outwards between the first extension section and the second extension section. The installation rib position includes a main body and an installation column located above the main body. There is a lateral matching section located above the laterally extending section between the installation column and the main body.

[0017] There is an avoidance gap between the rolling element and the side wall.

[0018] The top wall cooperates with the pot body to enclose a cooking cavity; alternatively, the pot lid further includes an inner lid. The top wall has an avoidance opening corresponding to the inner lid. The inner lid is detachably fixed to the lid body. The inner lid and the pot body cooperate to enclose a cooking cavity, and the lid lock can rotate relative to the inner lid.

[0019] The lid body is provided with an annular rib position. The annular rib position encloses an installation space for installing the lid lock. There are multiple rolling elements and they are evenly spaced along the circumferential direction of the lid lock in the installation space.

[0020] Due to adopting the above technical solution, the beneficial effects obtained by the present utility model are as follows:

[0021] 1. In the present utility model, the lid body is provided with rolling elements. The rolling elements are located in the accommodation space between the outer peripheral side of the lid lock and the face lid so as to be able to cooperate with the outer side of the side wall of the lid lock. When the lid lock rotates relative to the lid body in the state where the rolling elements are in contact with the side wall, the rolling elements can be driven to rotate, thereby converting the sliding friction between the two into rolling friction, reducing the frictional resistance, making the rotation of the lid lock smoother, and improving the user's feeling of opening and closing the lid. At the same time, due to the relatively high height of the side wall, the acting distance between the rolling elements and the side wall is greater. Therefore, when the lid lock contacts the rolling elements, the contact between the two is more stable, so that the rolling elements can freely rotate around their own axes under the drive of the lid lock, and further guide the lid lock more smoothly, avoiding the lid lock from being deflected.

[0022] Moreover, since the side wall surrounds the outer periphery of the top wall and is located in the edge area of the whole lid lock, when the pressure inside the pot increases, the side wall is only subjected to the tensile force in the up and down directions and a certain bending moment, and the strength of the side wall is relatively high and the deformation amount is small. In the state where the rolling elements are not in contact with the side wall, even if the side wall undergoes slight deformation, the risk of interference with the rolling elements is small. Therefore, whether in the pressurized state or the non-pressurized state, the stable cooperation between the rolling elements and the side wall can be ensured, enabling the user to obtain a better operating feel.

[0023] 2. As a preferred embodiment of the present utility model, the side wall includes a first extension section and a second extension section located below the first extension section. There is a laterally extending section extending outward between the first extension section and the second extension section, so that the diameter of the first extension section is smaller than that of the second extension section. The rolling member is arranged corresponding to the first extension section to be able to contact the first extension section. The side wall includes two vertically arranged vertical sections, and the diameter of the lower second extension section is larger than that of the upper first extension section. On the one hand, the cooperation between the rolling member and the first extension section can effectively reduce the gap between the lock cover and the lid body and can effectively guide the rotation of the lock cover, reducing the rotational friction force. On the other hand, the lower second extension section and the laterally extending section can form an occlusion for the upper rolling member from below the pot lid, so that the user cannot see the rolling member from the lower side of the pot lid upward, thereby realizing a hidden design of the rolling member, improving the overall aesthetics of the pot lid, and reducing the risk of the rolling member being knocked and causing poor rolling or falling off.

[0024] 3. As a preferred embodiment of the present utility model, the lid body is provided with a mounting post for mounting the rolling member. The length of the mounting post is less than the height of the first extension section, so that there is a vertical gap between the mounting post and the second extension section. The first extension section has a vertically extending part and an arc transition part at the connection with the top wall. The length of the mounting post being less than the height of the first extension section can not only ensure that the rolling member contacts the vertically extending part of the first extension section, making the contact between the two more stable and reliable. When the lock cover rotates, a stable force can be transmitted to the rolling member through the vertical part to make it roll. Moreover, a vertical gap is formed between the mounting post and the lower second extension section. This gap can leave space for the upward floating of the lock cover. When the pressure inside the pot increases, the lock cover may float upward under the action of the pressure inside the pot. The existence of the vertical gap ensures that the lock cover will not interfere with the rolling member after floating upward, thereby ensuring the stable position of the rolling member and its reliable rolling.

[0025] 4. As a preferred embodiment of the present utility model, the lid body is provided with a mounting rib position extending upward into the accommodating space, and the rolling member is fixed to the mounting rib position from top to bottom. The rolling member is installed from top to bottom to the mounting rib position. Compared with the way of hanging and fixing the rolling member, it can make the fixing of the rolling member to the mounting rib position more stable and reliable, avoiding the rolling member falling off under its own gravity. On the other hand, for the overall aesthetics of the pot lid, the gap between the lower end of the side wall and the lid body is designed to be smaller, while the gap between the upper part of the side wall and the lid body is larger to leave installation space for the components inside the pot lid. Therefore, the mounting rib position extends upward, and the rolling member is installed at the top of the mounting rib position, cooperating with the upper part of the side wall, reasonably utilizing the internal space of the pot lid, leaving enough space for the arrangement of the rolling member and its cooperation with the side wall, reducing the assembly difficulty, and preventing the rolling member from interfering with the lock cover.

[0026] 5. As a preferred embodiment of the present utility model, the pot cover further includes an inner cover. The top wall has an avoidance opening corresponding to the inner cover. The inner cover is detachably fixed to the cover body. The inner cover and the pot body cooperate to enclose a cooking cavity, and the lid locking member can rotate relative to the inner cover. The inner cover and the pot body cooperate to enclose a cooking cavity and are in direct contact with the environment in the cooking cavity. Therefore, it is easy to adhere food. The inner cover is designed as a detachable structure, which is convenient for users to clean the inner cover. The lid locking member cannot be detached from the cover body. On the one hand, it can always block the rolling member, so that users cannot see the rolling member, improving the aesthetics of the pot cover. On the other hand, it can also always ensure the relative position relationship between the rolling member and the lid locking member, so that the two cooperate stably, avoiding the relative position of the rolling member and the lid locking member changing due to frequent installation and disassembly, which affects the cooperation between the lid locking member and the rolling member. At the same time, when the user performs the operation of opening and closing the cover, only the lid locking member rotates, while the inner cover remains fixed, so that the sealing ring on the inner cover is stably abutted against the pot body to maintain sealing, avoiding the state of the sealing ring being damaged due to the relative movement of the inner cover relative to the pot body and destroying the seal. At the same time, it also avoids excessive frictional resistance between the sealing ring and the pot body, affecting the user's operation feel. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the present utility model and constitute a part of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation of the present utility model. In the drawings:

[0028] Figure 1 is a cross-sectional view of a partial area of the pot cover under an embodiment of the present utility model;

[0029] Figure 2 is Figure 1 an enlarged view of area A in

[0030] Figure 3 is a schematic structural view of the lid locking member under an embodiment of the present utility model;

[0031] Figure 4 is Figure 3 a cross-sectional view of the lid locking member in

[0032] Figure 5 is Figure 1 a top view of the pot cover in

[0033] Figure 6 is a cross-sectional view of the cover body under an embodiment of the present utility model;

[0034] Figure 7 is Figure 6 an enlarged view of area B in

[0035] Wherein:

[0036] 1 Cover body; 11 Annular rib position; 12 Mounting rib position; 121 Body; 1221 Limiting rib; 1222 Mounting position; 122 Mounting column; 123 Transverse mating section; 13 Accommodating space;

[0037] 2 Locking cover; 21 Top wall; 22 Side wall; 221 First extension section; 222 Transverse extension section; 223 Second extension section; 23 Avoidance opening; 24 Locking teeth; 25 Vertical gap;

[0038] 3 Rolling element; 31 Roller; 32 Limiting part; 33 Avoidance gap; 34 Rolling gap;

[0039] 4 Inner cover; 41 Sealing ring. Detailed implementation mode

[0040] In order to more clearly illustrate the overall concept of the present utility model, the following will be described in detail by way of examples in conjunction with the drawings of the specification.

[0041] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present utility model is not limited by the specific embodiments disclosed below.

[0042] In addition, in the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0043] In the present utility model, unless otherwise clearly defined and limited, the terms "mount", "connect", "couple", "fix", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0044] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to terms such as "embodiment", "example", "an embodiment", "example" or "specific example" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0045] As Figure 1 , Figure 2 shown, a pressure cooking appliance includes a pot body and a pot lid. The pot lid includes a lid body 1 and a locking lid 2. The locking lid 2 can rotate relative to the lid body 1 to have a locking state of locking with the pot body and an unlocking state of unlocking from the pot body. The locking lid 2 includes a top wall 21 and a side wall 22 that surrounds the outer periphery of the top wall 21 and extends downward. There is an accommodating space 13 between the side wall 22 and the lid body 1. The lid body 1 is provided with a rolling member 3 located in the accommodating space 13. The rolling member 3 can contact the outer wall of the side wall 22 so that the locking lid 2 can drive the rolling member 3 to rotate.

[0046] In the present utility model, the lid body 1 is provided with a rolling member 3. The rolling member 3 is located in the accommodating space 13 between the outer peripheral side of the locking lid 2 and the face lid so as to be able to cooperate with the outer side of the side wall 22 of the locking lid 2. When the rolling member 3 is in contact with the side wall 22, when the locking lid 2 rotates relative to the lid body 1, it can drive the rolling member 3 to rotate, thereby converting the sliding friction between the two into rolling friction, reducing the frictional resistance, making the rotation of the locking lid 2 smoother, and improving the user's feeling of opening and closing the lid. At the same time, due to the relatively high height of the side wall 22, the acting distance between the rolling member 3 and the side wall 22 is greater. Therefore, when the locking lid 2 contacts the rolling member 3, the contact between the two is more stable, so that the rolling member 3 can freely rotate around its own axis under the drive of the locking lid 2, and further guide the locking lid 2 more smoothly, avoiding the locking lid 2 from being deflected.

[0047] Moreover, since the side wall 22 surrounds the outer periphery of the top wall 21 and is located in the edge area of the whole locking lid 2, when the pressure inside the pot increases, the side wall 22 only receives the tensile force in the up and down directions and a certain bending moment, and the side wall 22 has a relatively high strength and a small deformation amount. In the state where the rolling member 3 is not in contact with the side wall 22, even if the side wall 22 undergoes a slight deformation, the risk of interference with the rolling member 3 is relatively small. Therefore, whether in the pressurized state or the non-pressurized state, the stable cooperation between the rolling member 3 and the side wall 22 can be ensured, enabling the user to obtain a better operating feel.

[0048] Specifically, asFigure 3 As shown, at the lower end of the side wall 22 of the lock cover 2, there are lock teeth 24 arranged at intervals, and there are pot teeth arranged at intervals on the rim of the pot body. When the lock cover 2 rotates relative to the pot body until the lock teeth 24 are vertically aligned with the pot teeth, the two are locked, and at this time, the pot cover is in the locked state. When the lock cover 2 rotates relative to the pot body until the lock teeth 24 are vertically misaligned with the pot teeth, the pot cover is in the unlocked state.

[0049] It should be noted that the structure of the pot cover of the present utility model is not limited, and it can be one of the following embodiments:

[0050] Embodiment 1: In this embodiment, the top wall 21 and the pot body cooperate to enclose a cooking cavity. In this embodiment, the lock cover 2 forms an inner cover 4 and cooperates with the pot body to jointly form a cooking cavity. Wherein, a sealing ring is provided at the lower end of the side wall 22 for abutting against the pot mouth to form a seal. When the user opens and closes the cover, the rotation of the lock cover 2 (inner cover) can be controlled by the operation handle provided on the pot cover to lock or unlock with the pot body.

[0051] Embodiment 2: In this embodiment, as Figure 1 , Figure 3 shown, the pot cover further includes an inner cover 4. The top wall 21 has an avoidance opening 23 corresponding to the inner cover 4. The inner cover 4 is detachably fixed to the cover body 1. The inner cover 4 and the pot body cooperate to enclose a cooking cavity, and the lock cover 2 can rotate relative to the inner cover 4.

[0052] The inner cover 4 and the pot body cooperate to enclose a cooking cavity and are in direct contact with the environment in the cooking cavity, so it is easy to adhere food. The inner cover 4 is designed as a detachable structure, which is convenient for the user to clean the inner cover 4. And the lock cover 2 cannot be detached from the cover body 1. On the one hand, it can always block the rolling member 3 so that the user cannot see the rolling member 3, improving the aesthetics of the pot cover. On the other hand, it can also always ensure the relative position relationship between the rolling member 3 and the lock cover 2, so that the two cooperate stably, avoiding the relative position of the rolling member 3 and the lock cover 2 changing due to frequent installation and disassembly, which affects the cooperation between the lock cover 2 and the rolling member 3. At the same time, when the user performs the operation of opening and closing the cover, only the lock cover 2 rotates, while the inner cover 4 remains fixed, so that the sealing ring 41 on the inner cover 4 abuts against the pot body stably to maintain the seal, avoiding the state of the sealing ring 41 being damaged due to the relative movement of the inner cover 4 relative to the pot body and breaking the seal. At the same time, it also avoids too large frictional resistance between the sealing ring 41 and the pot body, affecting the user's operation feel.

[0053] Preferably, as Figure 2As shown, there is a clearance 33 between the rolling member 3 and the side wall 22. By providing a clearance between the rolling member 3 and the side wall 22, the risk of interference between the locking cover 2 and the rolling member 3 when the locking cover 2 is pressed upward or deformed is further reduced. That is to say, in the present utility model, the rolling member 3 can function not only when it contacts the locking cover 2. When the rolling member 3 does not contact the side wall 22, it can reduce the clearance between the locking cover 2 and the cover body 1, thereby reducing the shaking of the locking cover 2 inside the cover body 1 and reducing the abnormal noise generated by the shaking. When the rolling member 3 contacts the side wall 22, since the rolling member 3 can rotate, the wear between the locking cover 2 and the rolling member 3 after contact is reduced, and at the same time, it can guide the rotation of the locking cover 2 and reduce the resistance. Specifically, in one embodiment, in the non-pressurized state, there is a clearance between the rolling member 3 and the side wall 22. At this time, when the user rotates the locking cover 2, the side wall 22 does not contact the rolling member 3. When the pressure inside the pot rises or after long-term use, the side wall 22 deforms or floats upward. At this time, the side wall 22 contacts the rolling member 3. At this time, if the user rotates the locking cover 2, the rolling member 3 can guide the locking cover 2 and reduce the resistance.

[0054] Furthermore, the clearance 33 between the rolling member 3 and the side wall 22 of the locking cover 2 can be freely set according to the model, the size of the pot lid, etc., and the size of the rolling member 3 can also be freely set to customize the feeling of opening and closing the lid for pot lids of different weights.

[0055] As a preferred embodiment of the present utility model, as Figure 2 , Figure 3 , Figure 4 shown, the side wall 22 includes a first extension section 221 and a second extension section 223 located below the first extension section 221. There is a laterally extending section 222 extending outward between the first extension section 221 and the second extension section 223, so that the diameter of the first extension section 221 is smaller than the diameter of the second extension section 223. The rolling member 3 is arranged corresponding to the first extension section 221 so as to be able to contact the first extension section 221.

[0056] The side wall 22 includes two vertical sections arranged up and down, and the diameter of the lower second extension section 223 is larger than that of the upper first extension section 221. On the one hand, the rolling member 3 cooperates with the first extension section 221, which can effectively reduce the clearance between the locking cover 2 and the cover body 1 and can guide the rotation of the locking cover 2, reducing the rotational friction force. On the other hand, the lower second extension section 223 and the laterally extending section 222 can form an occlusion for the upper rolling member 3 from below the pot lid, so that the user cannot see the rolling member 3 from the lower side of the pot lid upward, thereby realizing a hidden design of the rolling member 3, improving the overall aesthetics of the pot lid, and reducing the risk of the rolling member 3 being knocked and rolled smoothly or falling off.

[0057] It should be noted that in the present utility model, the extending directions of the first extension section 221 and the second extension section 223 can be the vertical direction or inclined extension. For example, the side wall 22 extends outwardly from top to bottom as a whole, so that the diameter of the lock cover 2 gradually increases from top to bottom.

[0058] Furthermore, as Figure 2 shown, the cover body 1 is provided with a mounting post 122 for mounting the rolling member 3, and the length of the mounting post 122 is less than the height of the first extension section 221, so as to have a vertical gap 25 between the mounting post 122 and the second extension section 223.

[0059] The first extension section 221 has a vertically extending portion and an arc transition portion at the connection with the top wall 21 at the top. The length of the mounting post 122 being less than the height of the first extension section 221 can not only ensure that the rolling member 3 contacts the vertically extending portion of the first extension section 221, making their contact more stable and reliable, and when the lock cover 2 rotates, a stable force can be transmitted to the rolling member 3 through the vertical portion to make it roll. Moreover, a vertical gap 25 is formed between the mounting post 122 and the second extension section 223 below. This gap can leave space for the lock cover 2 to float upward. When the pressure in the pot increases, the lock cover 2 may float upward under the action of the pressure in the pot. The existence of the vertical gap 25 ensures that the lock cover 2 will not interfere with the rolling member 3 after floating upward, thereby ensuring the stable position of the rolling member 3 and its reliable rolling.

[0060] In a preferred embodiment, as Figure 2 shown, the cover body 1 is provided with a mounting rib position 12 extending upward into the accommodating space 13, and the rolling member 3 is fixed to the top of the mounting rib position 12 from top to bottom.

[0061] The rolling member 3 is mounted to the mounting rib position 12 from top to bottom. Compared with the way of hanging and fixing the rolling member 3, it can make the fixing of the rolling member 3 to the mounting rib position 12 more stable and reliable, and prevent the rolling member 3 from falling off under its own gravity. On the other hand, for the overall aesthetics of the pot lid, the gap between the lower end of the side wall 22 and the cover body 1 is designed to be smaller, while the gap between the upper part of the side wall 22 and the cover body 1 is larger to leave installation space for the components inside the pot lid. Therefore, the mounting rib position 12 extends upward, and the rolling member 3 is mounted at the top of the mounting rib position 12, cooperating with the upper part of the side wall 22, reasonably utilizing the internal space of the pot lid, leaving enough space for the arrangement of the rolling member 3 and its cooperation with the side wall 22, reducing the assembly difficulty, and preventing the rolling member 3 from interfering with the lock cover 2.

[0062] Furthermore, as Figure 2 、 Figure 6 、 Figure 7As shown, the mounting rib position 12 includes a body 121 and a mounting post 122 located above the body 121. A limiting rib 1221 is provided on the circumferential side of the mounting post 122. The rolling member 3 includes a roller 31 and a limiting portion 32. The limiting portion 32 and the limiting rib 1221 enclose a mounting position 1222, and the roller 31 is sleeved in the mounting position 1222.

[0063] Specifically, as Figure 2 shown, the body 121 is a bent and extended structure to form an avoidance for the second extension section 223 of the lower section of the opposite side, and extends into the accommodating space 13 above. The mounting post 122 is vertically arranged, and the roller 31 is sleeved on the outer circumference of the mounting post 122, so that the rotation axis of the roller 31 is in the vertical direction. Alternatively, the mounting post 122 can be set as an inclined structure to make the rotation axis of the roller 31 inclined to better fit with the side wall 22, which is not limited herein.

[0064] After the roller 31 is sleeved on the mounting post 122, the lower end is blocked by the limiting rib 1221, and the upper end is blocked by the limiting portion 32, thereby restricting the up and down movement of the roller 31 and keeping the roller 31 in the mounting position 1222. Specifically, as Figure 2 shown, the outer circumferential surface of the roller 31 can be a plane or an arc surface to further reduce the contact area with the side wall 22 and reduce the frictional resistance, which is not limited herein.

[0065] In a specific embodiment, as Figure 2 shown, the limiting portion 32 includes a screw and a gasket. The mounting post 122 is provided with a fixing channel. The gasket is placed between the head of the screw and the mounting post 122, and then the screw is tightly connected to the mounting post 122 so that the gasket is located above the mounting position 1222 to form an upward limit for the roller 31. Specifically, the gasket can be a structure independent of the screw, or a screw with a self - contained gasket can be used.

[0066] Furthermore, as Figure 2 shown, the length of the mounting position 1222 along the axial direction of the mounting post 122 is greater than the axial length of the roller 31, so that there is a rolling gap 34 between the limiting portion 32 and the roller 31. On the one hand, it makes the upper and lower ends of the roller 31 not contact the limiting portion 32 and the limiting rib 1221 at the same time, reduces the frictional force when the roller 31 rotates, and makes the roller 31 rotate more smoothly. On the other hand, the roller 31 can move up and down driven by the lock cover 2, so that the degree of freedom of the roller 31 is higher, and it can adjust its own position within a certain height range according to the position of the lock cover 2, and then maintain the contact effect with the lock cover 2.

[0067] In a preferred embodiment, as Figure 2As shown, the side wall 22 includes a first extension section 221 and a second extension section 223 located below the first extension section 221. There is a laterally extending section 222 extending outward between the first extension section 221 and the second extension section 223. The mounting rib position 12 includes a body 121 and a mounting post 122 located above the body 121. There is a lateral mating section 123 located above the laterally extending section 222 between the mounting post 122 and the body 121.

[0068] Both the lateral mating section 123 and the laterally extending section 222 are laterally extending structures, and the lateral mating section 123 is located above the laterally extending section 222, and there is a gap between them in the vertical direction. This makes the extending direction of the mounting rib position 12 closer to the overall extending direction of the side wall 22, so as to better utilize the space between the cover body 1 and the locking cover 2 and save the internal space of the pot lid. At the same time, the lateral mating section 123 can form an upward limit for the laterally extending section 222. When the pressure inside the pot increases, the locking cover 2 is pushed up by the air pressure inside the pot, and the gap between them can provide a certain space for the locking cover 2 to float upward. When the locking cover 2 floats up to abut against the laterally extending section 222 and the lateral mating section 123, the cover body 1 can then form a stop limit for the locking cover 2, and at this time the locking cover 2 cannot continue to float upward. In this way, the locking cover 2 is limited by the cover body 1, as well as the locking structure on the locking cover 2 and the pot body, so that the stop force received by the locking cover 2 is more dispersed, avoiding excessive force and deformation or damage at the locking teeth 24 of the locking cover 2 and the pot teeth of the pot body, resulting in the inability to lock the pot lid and the pot body.

[0069] Preferably, as Figure 5 , Figure 6 shown, the cover body 1 is provided with an annular rib position 11. The annular rib position 11 encloses an installation space for installing the locking cover 2. The rolling members 3 are multiple and are evenly spaced along the circumferential direction of the locking cover 2 in the installation space.

[0070] The annular rib position 11 surrounds the outer periphery of the side wall 22, and the lower edge of the annular rib position 11 is basically flush with or lower than the lower edge of the locking cover 2, forming an occlusion for the outer peripheral side of the locking cover 2. On the one hand, it improves the overall aesthetics of the pot lid, and users can only see the locking cover 2 from the lower side of the pot lid and cannot see the locking cover 2 from one side. On the other hand, it also improves the integrity between the cover body 1 and the locking cover 2, reduces the gap between the outer peripheral sides of the cover body 1 and the locking cover 2, and reduces the shaking of the locking cover 2.

[0071] The rolling members 3 are evenly arranged along the axial direction of the locking cover 2, so that the gaps between multiple regions on the outer peripheral side of the locking cover 2 and the cover body 1 are uniform and stable, preventing the locking cover 2 from tilting relative to the cover body 1. At the same time, when the rolling members 3 contact the locking cover 2, they can also play a guiding role in multiple circumferential regions of the locking cover 2 and reduce the frictional resistance, making the movement of the locking cover 2 smoother and reducing the jamming feeling.

[0072] Specifically, asFigure 1 , Figure 6 As shown in Figure 6 , the top of the annular rib 11 extends upward into the accommodation space 13 to form a mounting post 122 for mounting the rolling element 3.

[0073] Those not described in the present utility model can be realized by adopting or referring to the existing technologies.

[0074] Each embodiment in this specification is described in a progressive manner. For the same or similar parts among the embodiments, reference can be made to each other, and the key points of each embodiment are the differences from other embodiments.

[0075] The above description is only for the embodiments of the present utility model and is not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the scope of the claims of the present utility model.

Claims

1. A pressure cooking appliance, comprising a pot body and a pot lid. The pot lid includes a lid body and a locking lid. The locking lid is capable of rotating relative to the lid body to have a locked state of locking with the pot body and an unlocked state of unlocking from the pot body. It is characterized in that, the locking lid includes a top wall and a side wall surrounding the outer periphery of the top wall and extending downward. There is an accommodating space between the side wall and the lid body. The lid body is provided with a rolling member located in the accommodating space. The rolling member can contact the outer wall of the side wall so that the locking lid can drive the rolling member to rotate.

2. The pressure cooking appliance according to claim 1, characterized in that, the side wall includes a first extension section and a second extension section located below the first extension section. There is a laterally extending section extending outward between the first extension section and the second extension section, so that the diameter of the first extension section is smaller than the diameter of the second extension section. The rolling member is arranged corresponding to the first extension section to be able to contact the first extension section.

3. The pressure cooking appliance according to claim 2, characterized in that, the lid body is provided with a mounting post for mounting the rolling member. The length of the mounting post is smaller than the height of the first extension section, so that there is a vertical gap between the mounting post and the second extension section.

4. The pressure cooking appliance according to claim 1, characterized in that, the lid body is provided with a mounting rib position extending upward into the accommodating space. The rolling member is fixed to the mounting rib position from top to bottom.

5. The pressure cooking appliance according to claim 4, characterized in that, the mounting rib position includes a body and a mounting post located above the body. A limiting rib is provided on the circumferential side of the mounting post. The rolling member includes a roller and a limiting portion. The limiting portion and the limiting rib enclose a mounting position, and the roller is sleeved in the mounting position.

6. The pressure cooking appliance according to claim 5, characterized in that, the length of the mounting position along the axial direction of the mounting post is greater than the axial length of the roller, so that there is a rolling gap between the limiting portion and the roller.

7. The pressure cooking appliance according to claim 4, characterized in that, the side wall includes a first extension section and a second extension section located below the first extension section. There is a laterally extending section extending outward between the first extension section and the second extension section. The mounting rib position includes a body and a mounting post located above the body. There is a lateral matching section located above the laterally extending section between the mounting post and the body.

8. The pressure cooking appliance according to claim 1, characterized in that, there is an avoidance gap between the rolling member and the side wall.

9. The pressure cooking appliance according to claim 1, characterized in that, the top wall and the pot body cooperate to enclose a cooking cavity; or, the pot lid further includes an inner lid. The top wall has an avoidance opening corresponding to the inner lid. The inner lid is detachably fixed to the lid body. The inner lid and the pot body cooperate to enclose a cooking cavity. The locking lid is capable of rotating relative to the inner lid.

10. The pressure cooking appliance according to any one of claims 1-9, characterized in that the lid is provided with an annular rib position, the annular rib position encloses an installation space for installing the lid lock, and the plurality of rolling members are evenly spaced along the circumferential direction of the lid lock and arranged in the installation space.

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