Disclosure of Invention
The invention provides a cooking pot and a pot cover thereof, which aim to solve the technical problems of complicated cover opening and closing processes of pressure cookware.
In order to solve the technical problems, the technical scheme includes that the pot cover comprises a cover body, a handle, at least two locking pin pieces and a linkage mechanism, wherein the cover body is used for covering an opening end of the pot body, the handle is telescopically and movably arranged on the cover body, the at least two locking pin pieces are arranged in the cover body and are radially arranged relative to the handle, the linkage mechanism is connected between the handle and the locking pin pieces, and the locking pin pieces are driven to perform telescopic movement in a telescopic process of the handle so as to lock and unlock the pot cover and the pot body.
Optionally, the linkage mechanism includes a connecting rod seat and at least two connecting rods, the connecting rod seat is connected with one end of the handle, which is close to the cover body, and two ends of each connecting rod are respectively hinged with the connecting rod seat and the corresponding lock pin piece.
Optionally, the pot cover further includes a stop mechanism, the stop mechanism includes a guide pillar and a stop portion, the guide pillar connect in the lid is towards one side of handle, just the axial of guide pillar with the direction of movement of handle is parallel, the connecting rod seat with the handle movable sleeve is located the periphery of guide pillar, the stop portion connect in the guide pillar keep away from the end of lid, in order when connecting rod seat or handle moves to the end of guide pillar, the butt connecting rod seat or the handle.
Optionally, the limiting mechanism further includes an elastic element, and the elastic element is clamped between the stop portion and the connecting rod seat or the handle.
Optionally, the lid includes interior lid and outer lid, outer lid in on the interior lid, outer lid has with the handle is a annular and encloses fender portion of center, be formed with the guide slot on the annular portion of enclosing fender, the lockpin spare set up in on the interior lid and activity wear to locate in the guide slot.
Optionally, a first guiding part is formed on the locking pin piece, a second guiding part is formed on the cover body, and the first guiding part and the second guiding part are matched with each other to limit the telescopic direction of the locking pin piece.
Optionally, the first guiding part is a kidney-shaped hole formed in the locking pin piece, the length direction of the kidney-shaped hole is along the radial direction of the cover body, the second guiding part is a guide rod arranged on the cover body, and the guide rod penetrates through the kidney-shaped hole.
Optionally, the first guiding part is a sliding block arranged on the locking pin piece, the second guiding part is a sliding rail arranged on the cover body, the extending direction of the sliding rail is along the radial direction of the cover body, the sliding block is in sliding fit with the sliding rail, or the first guiding part is a sliding rail arranged on the locking pin piece, the extending direction of the sliding rail is along the radial direction of the cover body, the second guiding part is a sliding block arranged on the cover body, and the sliding block is in sliding fit with the sliding rail.
Optionally, the connecting rod seat is disc-shaped, at least two connecting rods are connected and uniformly distributed on the periphery of the connecting rod seat, and the extending direction of the connecting rods passes through the axis of the connecting rod seat.
Optionally, the fixed slot has been seted up on the connecting rod seat, the fixed slot includes holding portion and dodges the portion, the connecting rod with the articulated one end of connecting rod seat is provided with the articulated shaft, the articulated shaft activity is located the holding portion, just the axial of articulated shaft with the radial of connecting rod seat is perpendicular, the connecting rod wears to locate dodge in the portion.
Optionally, the pot cover further comprises an upward pressure protection piece, the upward pressure protection piece is movably arranged on the pot cover body, and the upward pressure protection piece is used for limiting the telescopic movement of the locking pin piece under the action of the pressure in the pot body.
Optionally, the cover body is provided with a mounting hole, the locking pin member is provided with a locking hole, the first part of the upper pressure protecting member is arranged in the locking hole in a penetrating manner, the second part of the upper pressure protecting member is arranged in the mounting hole in a penetrating manner and hung on the cover body, and the second part of the upper pressure protecting member is lifted to the locking hole under the action of the pressure of the pot body, so that the telescopic movement of the locking pin member is limited.
Optionally, the activity margin between the outer wall of the first portion of the upper pressing protection member and the inner wall of the locking hole is greater than or equal to the maximum displacement amount of the locking pin member, and the activity margin between the outer wall of the second portion of the upper pressing protection member and the inner wall of the locking hole is set to be smaller than the displacement amount required for unlocking the locking pin member.
Optionally, the upward-pressure protection piece includes movable sleeve, indication rod and butt piece, the movable sleeve wears to locate in the mounting hole, the indication rod wears to locate in the locking hole, and with the movable sleeve is connected, be provided with an annular flange on the indication rod, the external diameter of annular flange is greater than the diameter of mounting hole, in order to hang the movable sleeve on the lid, the butt piece with the movable sleeve is connected, just the external diameter of butt piece is greater than the diameter of mounting hole, wherein, under the effect of the internal pressure of pot body, the movable sleeve rises to in the locking hole, and then to the flexible motion of lock round pin spare is restricted, simultaneously the butt piece with lid body formation butt, and then sealed the mounting hole.
Optionally, an annular groove is formed in the outer wall of the movable sleeve, the abutting piece is an annular elastic ring, and the annular elastic ring is clamped in the annular groove.
In order to solve the technical problem, the invention adopts another technical scheme that the cooking pot comprises a pot body and a pot cover, wherein a locking piece is formed on the inner surface of the opening end of the pot body, and when the pot body is covered on the pot body, the locking pin piece is matched with the locking piece to lock the pot cover and the pot body.
Optionally, the number of the locking pieces is at least two, at least two locking pieces are circumferentially arranged at intervals around the opening end of the pot body, a positioning groove is formed at the opening end of the pot body, a positioning block is formed on the cover body, and when the positioning block is matched with the positioning groove, the locking pin piece is mutually aligned with the locking pieces.
Optionally, the locking piece is a locking pin groove, the locking pin groove is formed by inwards sinking the inner surface of the opening end of the pot body, or the locking pin groove penetrates through the opening end of the pot body, a reinforcing rib is formed on the outer side wall of the pot body, and the reinforcing rib is arranged around the periphery of the locking pin groove.
Optionally, the surface of the locking pin groove contacted with the locking pin piece is an arc surface, the surface of the locking pin piece contacted with the locking pin groove is an arc surface, and the arc surface of the locking pin groove is matched with the arc surface of the locking pin piece.
Optionally, the length of a chord corresponding to the arc where the arc surface is located is 2-300mm, and the height of the arc surface along the radial direction of the arc is 0-50mm.
Optionally, the locking element is disposed circumferentially around the inner surface of the open end of the pan body.
According to the embodiment of the invention, the handle which can be close to and far away from the cover body is arranged, and the telescopic motion of the handle is converted into the telescopic motion of the locking pin piece through the linkage mechanism, so that the cover opening and closing of the cover are realized, the cover opening and closing actions can be rapidly completed, and the user experience is better.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, are intended to fall within the scope of the present invention.
In one aspect, referring to fig. 1 to 3, fig. 1 is a schematic perspective view of a pot cover according to an embodiment of the present invention, fig. 2 is a schematic cross-sectional view of the handle in fig. 1 when the handle is far from the cover, and fig. 3 is a schematic cross-sectional view of the handle in fig. 1 when the handle is near the cover. The pot cover 100 generally includes a cover body 10, a handle 20, at least two latch members 30, and a linkage 40. The cover body 10 is used for covering the open end of a pot body (not shown in the figure), the handle 20 is telescopically movably arranged on the cover body 10, at least two lock pin members 30 are arranged in the cover body 10 and are radially arranged relative to the handle 20, the linkage mechanism 40 is connected between the handle 20 and the lock pin members 30, and the lock pin members 30 are driven to telescopically move in the telescopic process of the handle 20 so as to lock and unlock the pot cover 100 and the pot body.
Specifically, at least two locking pin members 30 are radially unfolded with the handle 20 as a center, and the locking pin members 30 can be driven by the linkage mechanism 40 to perform telescopic movement with the handle 20 as a center. As shown in fig. 2, when the handle 20 moves away from the cover 10, i.e. moves along the arrow direction shown in the figure, one end of the linkage mechanism 40 connected with the handle is driven to move away from the cover 10, and the other end of the linkage mechanism 40 drives the locking pin member 30 to retract inwards, i.e. move towards the handle 20, so as to unlock the pot. As shown in fig. 3, when the handle 20 moves in a direction approaching the cover 10, i.e. in a direction of an arrow shown in the drawing, one end of the linkage mechanism 40 connected with the handle is driven to move in a direction approaching the cover 10, and the other end of the linkage mechanism 40 drives the locking pin member 30 to expand outwards, i.e. move in a direction away from the handle 20, so as to lock with the pot body.
According to the embodiment of the invention, the handle 20 which can be close to and far away from the cover body 10 is arranged, and the telescopic motion of the handle 20 is converted into the telescopic motion of the locking pin piece 30 through the linkage mechanism 40, so that the cover opening and closing of the pot cover 100 are realized, and the actions of opening and closing the cover can be rapidly completed, so that the user experience is better.
Wherein when there are two locking pin members 30, the two locking pin members 30 are disposed opposite to each other in the diameter direction of the handle 20 to form a connection at opposite sides of the lid 100. When there are a plurality of locking pin members 30, the plurality of locking pin members 30 are uniformly spread in a radial direction centering on the handle 20, so that the lid 100 is uniformly stressed.
As shown in fig. 1, the linkage mechanism 40 includes a link seat 42 and at least two links 44, where the link seat 42 is connected to one end of the handle 20 near the cover 10, and two ends of each link 44 are hinged to the link seat 42 and the corresponding lock pin member 30. By providing the link seat 42 connected with the at least two links 44, the movement consistency of the at least two latch members 30 can be made higher, thereby improving the door smoothness.
Alternatively, the link seat 42 may be integrally formed with the handle 20, and the link seat 42 may be detachably connected to the handle 20, which is not particularly limited in the embodiment of the present invention.
As shown in fig. 1, the connecting rod seat 42 is disc-shaped, at least two connecting rods 44 are connected and uniformly distributed on the periphery of the connecting rod seat 42, and the extending direction of the connecting rods 44 passes through the axis of the connecting rod seat 42.
Specifically, in this embodiment, as shown in fig. 1, the number of the connecting rods 44 is 5, one ends of the 5 connecting rods 44 are uniformly connected to the periphery of the connecting rod seat 42, and the projections of each connecting rod 44 on the plane of the connecting rod seat 42 are all arranged along the radial direction of the connecting rod seat 42, so that the stress of at least two connecting rods 44 is uniform, and the motion consistency is higher.
As shown in fig. 1 and 2, the connecting rod seat 42 is provided with a fixing groove 46, the fixing groove 46 includes a receiving portion 461 and an avoiding portion 463, one end of the connecting rod 44 hinged to the connecting rod seat 42 is provided with a hinge shaft 43, the hinge shaft 43 is movably disposed on the receiving portion 461, and an axial direction of the hinge shaft 43 is perpendicular to a radial direction of the connecting rod seat 42, and the connecting rod 44 is disposed in the avoiding portion 463 in a penetrating manner.
Specifically, at least two fixing grooves 46 are formed on the periphery of the connecting rod seat 42, and the number of the fixing grooves 46 is equal to the number of the connecting rods 44. The fixed slot 46 runs through the connecting rod seat 42 along the axial direction of the connecting rod seat 42, the fixed slot 46 comprises a containing part 461 and an avoiding part 463 which are arranged in a crisscross shape, the avoiding part 463 is arranged along the radial direction of the connecting rod seat 42 and is used for avoiding the connecting rod 44, the containing part 461 is arranged along the direction vertical to the radial direction of the connecting rod seat 42, and the hinging shaft 43 is inserted into the containing part 461 so as to hinge the connecting rod 44 with the connecting rod seat 42. By providing the fixing groove 46 on the link seat 42, the connection structure can be simplified, and the link 44 can be connected with the link seat 42 conveniently.
As shown in fig. 4, fig. 4 is a schematic perspective view of the latch member of fig. 1. The locking pin 30 is provided with a connecting part 32 protruding from one end near the handle 20, the connecting part 32 is provided with a connecting hole 321, and the locking pin 30 is hinged with the connecting rod 44 through the connecting hole 321. In this embodiment, the locking pin member 30 is plate-shaped, the connecting portion 32 and the locking pin member 30 are integrally formed, and the connecting portion 32 may be formed by bending a plate material on the locking pin member 30, so as to reduce the number of components and simplify the fixing structure.
Further, as shown in fig. 1 and 2, the pot cover 100 further includes a limiting mechanism 50, the limiting mechanism 50 includes a guide post 52 and a stop portion 54, the guide post 52 is connected to one side of the cover body 10 facing the handle 20, the axial direction of the guide post 52 is parallel to the moving direction of the handle 20, the connecting rod seat 42 and the handle 20 are movably sleeved on the periphery of the guide post 52, and the stop portion 54 is connected to the end of the guide post 52 far from the cover body 10, so as to abut against the connecting rod seat 42 or the handle 20 when the connecting rod seat 42 or the handle 20 moves to the end of the guide post 52. In this embodiment, the limiting mechanism 50 is provided to limit the movement direction and the maximum displacement of the handle 20 relative to the cover 10.
Specifically, in the present embodiment, the guide post 52 is disposed at the center of the cover 10, the link seat 42 is movably sleeved on the periphery of the guide post 52, the handle 20 is connected with the link seat 42, and the guide post 52 is used for guiding the link seat 42. By providing the stop portion 54 at the end of the guide post 52, the link seat 42 can be stopped during the movement of the link seat 42 away from the cover 10, so as to prevent the link seat 42 from falling out of the guide post 52.
In another embodiment, the handle 20 may be movably sleeved on the periphery of the guide post 52, and the handle 20 is connected with the link seat 42, which is not limited in the embodiment of the present invention.
Optionally, as shown in fig. 1 and 2, the limiting mechanism 50 further includes an elastic member 56, where the elastic member 56 is sandwiched between the stop portion 54 and the link seat 42 or the handle 20.
Specifically, the elastic member 56 is disposed on the guide post 52 and is clamped between the stop portion 54 and the link seat 42 or the handle 20, when the user pulls the handle 20 to move the handle 20 away from the cover 10, the handle 20 or the link seat 42 slowly presses the elastic member 56, and the impact of the handle 20 or the link 44 on the stop portion 54 can be reduced due to the arrangement of the elastic member 56, and the movement of the latch member 30 can be more stable. When the user releases the handle 20, the reset action of the elastic member 56 and the gravity of the handle 20 can drive the handle 20 or the connecting rod seat 42 to move towards the direction approaching the cover 10, so as to drive the locking pin member 30 to lock with the pot.
In this embodiment, the spring is used as the elastic member 56, and the spring is a common elastic member, so that the spring is convenient to replace when the part is damaged, has good extensibility, is easy to be extruded, and has a larger reaction force when being extruded to a certain extent. Of course, in other embodiments, other types of elastic members 56 may be used, such as rubber springs, air springs, dampers, etc., and embodiments of the present invention are not limited in particular.
As shown in fig. 1 and 2, the cover 10 includes an inner cover 12 and an outer cover 14, the outer cover 14 is covered on the inner cover 12, the outer cover 14 has an annular enclosing part 142 centered on the handle 20, a guiding groove 144 is formed on the annular enclosing part 142, and the locking pin member 30 is disposed on the inner cover 12 and movably penetrates through the guiding groove 144.
Specifically, the locking pin member 30 is disposed on the inner cover 12, the annular enclosure portion 142 is disposed around the periphery of the inner cover 12, a guide groove 144 is formed at a position of the annular enclosure portion 142 corresponding to the locking pin member 30, the guide groove 144 penetrates through the annular enclosure portion 142, and the locking pin member 30 movably penetrates through the guide groove 144, so that the locking pin member performs telescopic movement under the restriction of the guide groove 144. By providing the guide groove 144 in cooperation with the latch member 30 for guiding the latch member 30, the movement of the latch member 30 can be made smoother. The guide groove 144 penetrates the annular enclosing part 142, so that the locking pin piece 30 can conveniently extend out of the annular enclosing part 142 to be locked with the pot body.
Alternatively, as shown in fig. 1, the latch member 30 is formed with a first guide portion thereon, and the cover 10 is formed with a second guide portion thereon, the first and second guide portions being engaged with each other to limit the telescopic direction of the latch member 30. By providing the first guide portion and the second guide portion to be engaged with each other, the detent member 30 can be further guided so that the movement of the detent member 30 is more accurate.
In this embodiment, as shown in fig. 1 and 4, the cover 10 is circular, the first guiding portion is a kidney-shaped hole 34 formed on the latch member 30, the length direction of the kidney-shaped hole 34 is along the radial direction of the cover 10, the second guiding portion is a guide rod 16 disposed on the cover 10, and the guide rod 16 is disposed in the kidney-shaped hole 34 in a penetrating manner. When the latch member 30 moves telescopically relative to the cover 10, the kidney-shaped hole 34 moves relative to the guide bar 16, and the guide bar 16 can limit the moving direction of the latch member 30.
In this embodiment, the guide bar 16 is disposed on the inner cap body 12 such that the guide bar 16 mates with a detent member 30 disposed on the inner cap body 12. It will be appreciated that the guide 16 may also be disposed on the surface of the outer cover 14 opposite the inner cover 12, and embodiments of the present invention are not particularly limited.
In the above embodiment, the kidney-shaped aperture 34 is provided to slidably engage the guide bar 16 for guiding the latch member 30. In another embodiment, cooperating slide rails and blocks may also be provided for guiding the detent member 30. For example, in one embodiment, the first guiding portion is a sliding block disposed on the latch member 30, the second guiding portion is a sliding rail disposed on the cover 10, and the extending direction of the sliding rail is along the radial direction of the cover 10, and the sliding block is slidably engaged with the sliding rail. Or in another embodiment, the first guiding portion is a sliding rail disposed on the locking pin member 30, the extending direction of the sliding rail is along the radial direction of the cover 10, and the second guiding portion is a sliding block disposed on the cover 10, and the sliding block is in sliding fit with the sliding rail. Of course, in other embodiments, other types of guiding structures may be provided, and embodiments of the present invention are not limited in detail.
Further, as shown in fig. 5, fig. 5 is a schematic cross-sectional view of the lid of fig. 3 when the pressing-up protector moves to the limit lock pin. The lid 100 further includes an upper pressure protector 60, where the upper pressure protector 60 is movably disposed on the lid body 10, and the upper pressure protector 60 is used to limit the telescopic movement of the locking pin member 30 under the action of the pressure in the lid body. In this embodiment, by setting the upper pressure protection member 60 to limit the telescopic movement of the locking pin member 30 under the action of the pressure in the pot body when the pressure exists in the pot body, the user can be prevented from operating by mistake and opening the pot cover 100 when the pressure exists in the pot body, thereby improving the safety performance of the cooking pot.
In one embodiment, as shown in fig. 1 and 5, the cover 10 is provided with a mounting hole 18, the lock pin member 30 is provided with a locking hole 36, a first portion of the upper pressure protection member 60 is disposed in the locking hole 36 in a penetrating manner, a second portion of the upper pressure protection member 60 is disposed in the mounting hole 18 in a penetrating manner and is hung on the cover 10, and the second portion of the upper pressure protection member 60 rises to the locking hole 36 under the action of the pressure of the pot body, so as to limit the telescopic movement of the lock pin member 30.
Specifically, when there is no pressure in the pot body, the upper pressure protection member 60 is hung on the cover body 10, and the locking pin member 30 can move relative to the cover body 10 under the driving of the linkage mechanism 40. When pressure exists in the cooker body, the upper pressure protection piece 60 moves upwards under the action of the pressure in the cooker body, so that the second part is inserted into the locking hole 36, and when the handle 20 is lifted by a user, so that the locking pin piece 30 has a tendency of inwards shrinking, the second part of the upper pressure protection piece 60 can be abutted against the locking pin piece 30, so that the locking pin piece 30 is limited to shrink for unlocking operation, and the safety performance of a product is further improved.
Further, the play margin between the outer wall of the first portion of the push-up protector 60 and the inner wall of the locking hole 36 is greater than or equal to the maximum displacement amount of the locking pin member 30, and the play margin between the outer wall of the second portion of the push-up protector 60 and the inner wall of the locking hole 36 is set to be smaller than the displacement amount required for unlocking the locking pin member 30.
Specifically, the play allowance between the outer wall of the first portion of the push-up protector 60 and the inner wall of the locking hole 36 refers to the maximum distance that the latch member 30 can move relative to the push-up protector 60 when the first portion of the push-up protector 60 is inserted into the locking hole 36. The maximum displacement of the latch member 30 refers to the maximum displacement distance of the latch member 30 driven by the linkage 40. By setting the maximum distance that the latch member 30 moves relative to the upward-pressing protection member 60 to be greater than or equal to the maximum displacement of the latch member 30, interference of the upward-pressing protection member 60 suspended on the cover body 10 to the latch member 30 during movement of the latch member 30 can be avoided.
The play allowance between the outer wall of the second portion of the push-up protection member 60 and the inner wall of the locking hole 36 means the maximum distance that the locking pin member 30 can move relative to the push-up protection member 60 when the second portion of the push-up protection member 60 is inserted into the locking hole 36. The amount of displacement required to unlock the locking pin member 30 refers to the distance between the position of the locking pin member 30 when locked with respect to the pot and the position of the locking pin member 30 when just unlocked with respect to the pot. By setting the play allowance between the outer wall of the second portion of the upper pressure protection member 60 and the inner wall of the locking hole 36 to be smaller than the displacement amount required for unlocking the locking pin member 30, unlocking of the locking pin member 30 relative to the pot body when the second portion of the upper pressure protection member 60 is penetrated into the locking hole 36 can be avoided.
The pressing protection member 60 may be provided as a single structure, or may be provided to include at least two elements, and the embodiment of the present invention is not particularly limited. In the present embodiment, as shown in fig. 5 and 6, fig. 6 is a schematic sectional structure of the pressing-up protector in fig. 5. The push-up protector 60 may include a movable sleeve 62, an indicator bar 64, and an abutment 66. The movable sleeve 62 is arranged in the mounting hole 18 in a penetrating manner, the indication rod 64 is arranged in the locking hole 36 in a penetrating manner and is connected with the movable sleeve 62, an annular flange 642 is arranged on the indication rod 64, the outer diameter of the annular flange 642 is larger than the diameter of the mounting hole 18, so that the movable sleeve 62 is hung on the cover body 10, the abutting piece 66 is connected with the movable sleeve 62, the outer diameter of the abutting piece 66 is larger than the diameter of the mounting hole 18, the movable sleeve 62 is lifted into the locking hole 36 under the action of the pressure in the pot body, the telescopic movement of the lock pin piece 30 is further limited, and meanwhile, the abutting piece 66 is abutted with the cover body 10, so that the mounting hole 18 is sealed.
Specifically, one end of the indication rod 64 is connected with the movable sleeve 62, and the other end of the indication rod 64 can extend out of the pot cover 100 under the action of the pressure in the pot body, so as to be used for indicating the existence of the pressure in the pot body. The outer diameter of the annular flange 642 of the indicator rod 64 is larger than the diameter of the mounting hole 18, so that the push-up protector 60 can be hung on the cover 10. The abutment member 66 is disposed on a side of the cover 10 facing away from the indication rod 64, and is configured to abut against an inner side of the cover 10 when the movable sleeve 62 is lifted, so as to prevent the upward-pressing protection member 60 from being removed from the mounting hole 18.
Alternatively, as shown in fig. 6, an annular groove 622 is provided on the outer wall of the movable sleeve 62, and the abutment 66 is an annular elastic ring, and the annular elastic ring is clamped in the annular groove 622. By providing an annular elastic ring, on the one hand, the mounting and fixing of the abutment 66 is facilitated, and on the other hand, the sealing effect of the abutment 66 on the mounting hole 18 can also be improved.
Fig. 7 is a schematic exploded structure view of a cooking pot in another embodiment of the present invention as shown in fig. 7 and 8, and fig. 8 is a schematic sectional structure view of the cooking pot in fig. 7. In another aspect of the present invention, there is provided a cooking pot 200, the cooking pot 200 including a pot body 210 and a pot cover 220, wherein a locking member is formed on an inner surface of an open end of the pot body 210, and when the cover 221 is covered on the pot body 210, the locking pin member 225 is engaged with the locking member to lock the pot cover 220 and the pot body 210.
In this embodiment, the structure of the pot cover 220 is the same as that of the pot cover 100 described in the above embodiment, please refer to the description in the above embodiment, and the description is omitted here.
Optionally, there are at least two locking elements in number, with at least two locking elements being circumferentially spaced around the open end of the pan 210. The open end of the pot 210 is formed with a positioning groove 214, the cover 221 is formed with a positioning block 223, and when the positioning block 223 is matched with the positioning groove 214, the locking pin 225 is aligned with the locking element.
Wherein the number of locking elements may be equal to the number of locking pin elements 225, and the locking elements are in one-to-one correspondence with the locking pin elements 225 when the positioning block 223 is engaged with the positioning groove 214. The present embodiment can facilitate alignment of the locking member with the locking pin member 225 by providing the positioning block 223 and the positioning groove 214 that cooperate with each other, so that the locking pin member 225 and the locking member can be locked.
In this embodiment, as shown in fig. 7, the number of the positioning blocks 223 is two, the two positioning blocks 223 are respectively disposed on two opposite sides of the cover 221, and the positioning groove 214 is formed at a position corresponding to the positioning block 223 at the open end of the pot 210. It will be appreciated that in another embodiment, the positioning block 223 may be disposed at the open end of the pot body 210, and the positioning slot 214 may be formed on the pot cover 220, which is not limited in particular. The number of the positioning blocks 223 may be one, three or more, and the present invention does not limit the number of the positioning blocks 223.
Alternatively, as shown in fig. 9 and 10, fig. 9 is a schematic perspective view of the pan body in fig. 8, and fig. 10 is a partially enlarged schematic sectional view of the pan body in fig. 9. In this embodiment, the locking elements are provided as locking pin grooves 212, the locking pin grooves 212 being formed by inwardly recessed inner surfaces of the open ends of the pot 210. By forming the locking pin groove 212 through the recess, the contact area between the locking pin piece 225 and the locking pin groove 212 can be increased, so that the connection stability of the locking pin piece 225 and the locking pin groove 212 is improved, and the connection force of the pot cover 220 and the pot body 210 is improved.
In another embodiment, a locking pin groove 212 may be provided to penetrate through the open end of the pot 210, and a reinforcing rib is formed on the outer sidewall of the pot 210, and the reinforcing rib is surrounded on the periphery of the locking pin groove 212. Specifically, a reinforcing rib may be provided at a side of the lockpin groove 212 in contact with the lockpin 225, and when the lockpin 225 is inserted into the lockpin groove 212, the lockpin 225 is abutted against both the sidewall of the lockpin groove 212 and the reinforcing rib. By arranging the reinforcing ribs, on one hand, the strength of the lock pin groove 212 can be improved, on the other hand, the contact area between the lock pin member 225 and the lock pin groove 212 can be increased, the connection stability of the lock pin member 225 and the lock pin groove 212 can be improved, and the connection force of the pot cover 220 and the pot body 210 can be improved.
Further, as shown in fig. 11 and 12, fig. 11 is a schematic plan view of the latch member in fig. 7, and fig. 12 is a schematic plan view of the pan body in fig. 9. The surface of the locking pin piece 225, which is contacted with the locking pin groove 212, is an arc surface, the surface of the locking pin groove 212, which is contacted with the locking pin piece 225, is an arc surface, and the arc surface of the locking pin groove 212 is matched with the arc surface of the locking pin piece 225. By providing the contact surface between the latch groove 212 and the latch member 225 with an arc surface, the strength of the latch groove 212 can be enhanced.
Alternatively, in this embodiment, the length of the chord corresponding to the arc where the arc surface is located is set to be 2-300mm, and the height of the arc surface in the radial direction of the arc is set to be 0-50mm. Specifically, as shown in fig. 11 and 12, the length of the chord corresponding to the arc where the arc surface is located is W, and the height of the arc surface in the radial direction of the arc is H, where the value of W may be 2mm、5mm、10mm、20mm、30mm、40mm、50mm、60mm、70mm、80mm、90mm、100mm、120mm、140mm、160mm、180mm、200mm、220mm、240mm、260mm、280mm or 300mm, or the like. The value of H may be 5mm, 10mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm or 50mm, etc., and may be flexibly set as required, and the embodiment of the present invention is not particularly limited.
In the above embodiment, the spaced locking pin grooves 212 are provided on the inner surface of the open end of the pot body 210, and the pot cover 220 is positioned by the positioning blocks 223 and the positioning grooves 214 which are matched with each other so that the locking pin pieces 225 are aligned with the locking pin grooves 212.
In another embodiment, the latch slot 212 may also be disposed circumferentially around the inner surface of the open end of the pan 210. The cross-sectional shape of the latch groove 212 may be the same as or different from the cross-sectional shape of the latch groove 212 in the above embodiment, and the embodiment of the present invention is not particularly limited. By forming the annular locking pin groove 212 at the open end of the pot body 210, the pot cover 220 can be matched and connected with the pot body 210 when being positioned at any angle, and an alignment structure is not required, so that the operation is more convenient.
In the above embodiment, the locking pin groove 212 is formed on the inner surface of the open end of the pot body 210 to lock the pot body 210 and the pot cover 220, and in other embodiments, other types of locking elements may be provided for matching connection with the locking pin 225, which is not limited in the structure of the locking element according to the embodiments of the present invention.
In summary, unlike the prior art, the embodiment of the present invention converts the movement of the handle 20 in the direction of approaching and separating from the lid 10 into the telescopic movement of the latch member 30 through the linkage mechanism 40 by arranging the handle 20 capable of approaching and separating from the lid 10, thereby realizing the opening and closing of the lid 100, so that the opening and closing actions can be completed rapidly, and the user experience is better.
The foregoing description is only of embodiments of the present invention, and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present invention or directly or indirectly applied to other related technical fields are included in the scope of the present invention.