Cooking pots and lids

Abstract

The present invention discloses a cooking pot and a pot cover thereof. The pot cover comprises a cover body, a handle, at least two locking pins and a linkage mechanism. The cover body is used to cover the open end of the pot body; the handle is telescopically arranged on the cover body; at least two locking pins 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 pins, and during the extension and retraction process of the handle, the locking pins are driven to perform telescopic movement, so that the pot cover and the pot body are locked and unlocked. By providing a handle that can approach and move away from the cover body, the telescopic movement of the handle is converted into the telescopic movement of the locking pins through the linkage mechanism, thereby realizing the opening and closing of the pot cover, so that the opening and closing of the cover can be completed quickly, and the user experience is better.

Description

Technical Field

[0001] The invention relates to the technical field of cooking utensils, and in particular to a cooking pot and a pot cover thereof. Background Art

[0002] Pressure cookers use the physical phenomenon that the boiling point of liquid increases under higher air pressure to apply pressure to water, allowing the water to reach a higher temperature without boiling, thereby speeding up the cooking process of food. The liquid in the pot is heated and converted into water vapor, which is retained in the pot by using a sealed pot. The air will generate high pressure due to the heating, thereby increasing the boiling point of the liquid.

[0003] Since there is high pressure in the pot, the fit between the pot lid and the pot body plays a vital role in preventing the explosion of high-pressure kitchen appliances. At present, the fit between the pot lid and the pot body of mainstream products is to bear pressure by interlocking the lock on the pot lid and the pot teeth on the pot body. The pressure-bearing effect is good, but the action is more cumbersome: first, when closing the pot lid, the pot lid should be aligned with the pot body to avoid interference between the lock and the pot teeth; after buckling the pot lid, rotate the lock to make it overlap with the pot teeth. To open the lid, rotate the lock to make the lock and the pot teeth misaligned, and then lift the pot lid to complete the lid opening action. Summary of the invention

[0004] The invention provides a cooking pot and a pot cover thereof, so as to solve the technical problem that the opening and closing processes of the pressure cooker are complicated.

[0005] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a pot cover, the pot cover comprising: a cover body, used to cover the open end of the pot body; a handle, which is telescopically and movably arranged on the cover body; at least two locking pins, which are arranged in the cover body and radially arranged relative to the handle; a linkage mechanism, which is connected between the handle and the locking pin, and drives the locking pin to perform telescopic movement during the extension and retraction process of the handle, so that the pot cover and the pot body are locked and unlocked.

[0006] Optionally, the linkage mechanism includes a connecting rod seat and at least two connecting rods, the connecting rod seat is connected to one end of the handle close to the cover body, and both ends of each connecting rod are respectively hinged to the connecting rod seat and the corresponding locking pin member.

[0007] Optionally, the pot cover also includes a limiting mechanism, which includes a guide column and a stop portion, the guide column is connected to the side of the cover body facing the handle, and the axial direction of the guide column is parallel to the moving direction of the handle, the connecting rod seat and the handle are movably sleeved on the periphery of the guide column, and the stop portion is connected to the end of the guide column away from the cover body so as to abut the connecting rod seat or the handle when the connecting rod seat or the handle moves to the end of the guide column.

[0008] Optionally, the limiting mechanism further includes an elastic member, and the elastic member is clamped between the stop portion and the connecting rod seat or the handle.

[0009] Optionally, the cover body includes an inner cover body and an outer cover body, the outer cover body covers the inner cover body, the outer cover body has an annular enclosure portion centered on the handle, a guide groove is formed on the annular enclosure portion, and the locking pin is arranged on the inner cover body and movably inserted into the guide groove.

[0010] Optionally, a first guide portion is formed on the locking pin member, and a second guide portion is formed on the cover body, and the first guide portion and the second guide portion cooperate with each other to limit the telescopic direction of the locking pin member.

[0011] Optionally, the first guide portion is a waist-shaped hole opened on the locking pin, the length direction of the waist-shaped hole is arranged along the radial direction of the cover body, and the second guide portion is a guide rod arranged on the cover body, and the guide rod is inserted into the waist-shaped hole.

[0012] Optionally, the first guide portion is a slider disposed on the locking pin member, and the second guide portion is a slide rail disposed on the cover body, the extension direction of the slide rail is disposed along the radial direction of the cover body, and the slider slides in cooperation with the slide rail; or the first guide portion is a slide rail disposed on the locking pin member, the extension direction of the slide rail is disposed along the radial direction of the cover body, the second guide portion is a slider disposed on the cover body, and the slider slides in cooperation with the slide rail.

[0013] Optionally, the connecting rod seat is disc-shaped, at least two connecting rods are connected and evenly distributed on the periphery of the connecting rod seat, and the extending direction of the connecting rod passes through the axis of the connecting rod seat.

[0014] Optionally, a fixing groove is provided on the connecting rod seat, and the fixing groove includes a accommodating portion and an avoidance portion. A hinge shaft is provided at one end of the connecting rod hinged to the connecting rod seat. The hinge shaft is movably arranged in the accommodating portion, and the axial direction of the hinge shaft is perpendicular to the radial direction of the connecting rod seat. The connecting rod is inserted into the avoidance portion.

[0015] Optionally, the pot cover further comprises an upward pressure protection member, which is movably arranged on the cover body and is used for limiting the telescopic movement of the locking pin member under the action of the internal pressure of the pot body.

[0016] Optionally, a mounting hole is provided on the cover body, a locking hole is provided on the locking pin member, a first portion of the upper pressure protection member is passed through the locking hole, a second portion of the upper pressure protection member is passed through the mounting hole and is hung on the cover body, and the second portion of the upper pressure protection member rises to the locking hole under the action of the pressure in the pot body, thereby limiting the telescopic movement of the locking pin member.

[0017] Optionally, the margin of movement between the outer wall of the first part of the upper pressure protection piece and the inner wall of the locking hole is greater than or equal to the maximum displacement of the locking pin piece, and the margin of movement between the outer wall of the second part of the upper pressure protection piece and the inner wall of the locking hole is set to be smaller than the displacement required for the locking pin piece to unlock.

[0018] Optionally, the upper pressure protection member includes a movable sleeve, an indicator rod and a butt piece, the movable sleeve is inserted into the mounting hole, the indicator rod is inserted into the locking hole and connected to the movable sleeve, the indicator rod is provided with an annular flange, the outer diameter of the annular flange is larger than the diameter of the mounting hole, so that the movable sleeve can be hung on the cover body, the butt piece is connected to the movable sleeve, and the outer diameter of the butt piece is larger than the diameter of the mounting hole, wherein, under the action of the pressure in the pot body, the movable sleeve rises into the locking hole, thereby limiting the telescopic movement of the locking pin member, and at the same time, the butt piece forms an abutment with the cover body, thereby sealing the mounting hole.

[0019] Optionally, an annular groove is provided on the outer wall of the movable sleeve, and the abutment member is an annular elastic ring, which is clamped in the annular groove.

[0020] In order to solve the above technical problems, another technical solution adopted by the present invention is: to provide a cooking pot, the cooking pot comprises a pot body and a pot cover as described above, a locking piece is formed on the inner surface of the open end of the pot body, and when the cover body is covered on the pot body, the locking pin cooperates with the locking piece to lock the pot cover and the pot body.

[0021] Optionally, there are at least two locking members, and at least two locking members are circumferentially spaced around the open end of the pot body. A positioning groove is formed at the open end of the pot body, and a positioning block is formed on the cover body. When the positioning block cooperates with the positioning groove, the locking pin and the locking member are aligned with each other.

[0022] Optionally, the locking member is a locking pin groove, which is formed by an inward depression of the inner surface of the open end of the pot body; or the locking pin groove passes through the open end of the pot body, and 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.

[0023] Optionally, the surface of the lock pin groove in contact with the lock pin member is an arc surface, the surface of the lock pin member in contact with the lock pin groove is an arc surface, and the arc surface of the lock pin groove is matched with the arc surface of the lock pin member.

[0024] Optionally, the length of the chord corresponding to the arc where the arc surface is located is 2-300 mm, and the height of the arc surface along the radial direction of the arc is 0-50 mm.

[0025] Optionally, the locking element is arranged circumferentially around the inner surface of the open end of the pot body.

[0026] The embodiment of the present invention provides a handle that can move closer to and farther from the lid body, and converts the telescopic movement of the handle into the telescopic movement of the locking pin through a linkage mechanism, thereby realizing the opening and closing of the pot lid. Therefore, the opening and closing actions can be completed quickly, and the user experience is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0028] Figure 1 is a schematic diagram of the three-dimensional structure of a pot cover in one embodiment of the present invention;

[0029] Figure 2 yes Figure 1 A schematic cross-sectional view of the structure when the handle is away from the cover body;

[0030] Figure 3 yes Figure 1 A schematic cross-sectional view of the handle when it is close to the cover body;

[0031] Figure 4 yes Figure 1 A schematic diagram of the three-dimensional structure of the locking pin member;

[0032] Figure 5 yes Figure 3 A schematic cross-sectional view of the structure when the upper pressure protection member in the pot cover moves to the limit lock pin member;

[0033] Figure 6 yes Figure 5 A schematic cross-sectional view of the upper pressure protection member;

[0034] Figure 7 is a schematic diagram of the exploded structure of a cooking pot in another embodiment of the present invention;

[0035] Figure 8yes Figure 7 A schematic cross-sectional view of a cooking pot;

[0036] Fig. 9 yes Figure 8 A schematic diagram of the three-dimensional structure of the pot body;

[0037] Fig.10 yes Fig. 9 A partially enlarged schematic diagram of the cross-sectional structure of the pot body;

[0038] Fig.11 yes Figure 7 A schematic diagram of the planar structure of the locking pin member;

[0039] Fig.12 yes Fig. 9 Schematic diagram of the planar structure of the pot body. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] In one aspect, the present invention provides a pot cover 100. Figures 1 to 3 , Figure 1 is a schematic diagram of the three-dimensional structure of a pot cover in one embodiment of the present invention, Figure 2 yes Figure 1 A schematic diagram of a cross-sectional structure when the handle is away from the cover body, Figure 3 yes Figure 1 The cross-sectional structure diagram when the handle is close to the cover body. The pot cover 100 generally includes a cover body 10, a handle 20, at least two locking pins 30 and a linkage mechanism 40. The cover body 10 is used to cover the open end of the pot body (not shown in the figure); the handle 20 is telescopically arranged on the cover body 10; at least two locking pins 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 locking pin 30, and during the extension and retraction process of the handle 20, the locking pin 30 is driven to perform a telescopic movement, so that the pot cover 100 and the pot body are locked and unlocked.

[0042] Specifically, at least two locking pins 30 are radially extended with the handle 20 as the center, and the locking pins 30 can be driven by the linkage mechanism 40 to perform telescopic movement with the handle 20 as the center. Figure 2As shown in the figure, when the handle 20 moves away from the cover 10, that is, moves in the direction of the arrow shown in the figure, it will drive one end of the linkage mechanism 40 connected thereto to move away from the cover 10, and the other end of the linkage mechanism 40 will drive the locking pin 30 to retract inward, that is, move toward the direction close to the handle 20, thereby unlocking the pot body. Figure 3 As shown, when the handle 20 moves toward the direction close to the cover body 10, that is, moves in the direction of the arrow shown in the figure, it will drive one end of the linkage mechanism 40 connected thereto to move toward the direction close to the cover body 10, and the other end of the linkage mechanism 40 will drive the locking pin 30 to expand outward, that is, move in the direction away from the handle 20, and then lock with the pot body.

[0043] The embodiment of the present invention provides a handle 20 that can move closer to and farther from the lid body 10, and converts the telescopic movement of the handle 20 into the telescopic movement of the locking pin 30 through the linkage mechanism 40, thereby realizing the opening and closing of the pot lid 100, so that the opening and closing actions can be completed quickly, and the user experience is better.

[0044] When there are two locking pins 30, the two locking pins 30 are disposed opposite to each other along the diameter direction of the handle 20 to form a connection at opposite sides of the pot cover 100. When there are multiple locking pins 30, the multiple locking pins 30 are evenly spread out radially around the handle 20 so that the pot cover 100 is evenly stressed.

[0045] Among them, Figure 1 As shown, the linkage mechanism 40 includes a connecting rod seat 42 and at least two connecting rods 44. The connecting rod seat 42 is connected to one end of the handle 20 close to the cover body 10, and the two ends of each connecting rod 44 are respectively hinged to the connecting rod seat 42 and the corresponding locking pin member 30. By providing the connecting rod seat 42 connected to at least two connecting rods 44, the movement consistency of the at least two locking pin members 30 can be made higher, thereby improving the stability of opening the cover.

[0046] Optionally, the connecting rod seat 42 may be an integral structure with the handle 20 , and the connecting rod seat 42 may also be detachably connected to the handle 20 , which is not specifically limited in the embodiment of the present invention.

[0047] Among them, Figure 1 As shown, the connecting rod seat 42 is disc-shaped, at least two connecting rods 44 are connected and evenly distributed on the outer periphery of the connecting rod seat 42, and the extending direction of the connecting rod 44 passes through the axis of the connecting rod seat 42.

[0048] Specifically, in this embodiment, Figure 1As shown, there are five connecting rods 44, one end of the five connecting rods 44 is evenly connected to the outer periphery of the connecting rod seat 42, and the projection of each connecting rod 44 on the plane where the connecting rod seat 42 is located is arranged along the radial direction of the connecting rod seat 42, so that at least two connecting rods 44 are evenly stressed and have a high movement consistency.

[0049] Among them, Figure 1 and Figure 2 As shown, a fixing groove 46 is opened on the connecting rod seat 42, and the fixing groove 46 includes a receiving portion 461 and an avoidance portion 463. A hinge shaft 43 is provided at one end of the connecting rod 44 hinged to the connecting rod seat 42. The hinge shaft 43 is movably arranged in the receiving portion 461, and the axial direction of the hinge shaft 43 is perpendicular to the radial direction of the connecting rod seat 42, and the connecting rod 44 is inserted into the avoidance portion 463.

[0050] Specifically, at least two fixing grooves 46 are provided 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 fixing grooves 46 penetrate the connecting rod seat 42 along the axial direction of the connecting rod seat 42, and the fixing grooves 46 include a accommodating portion 461 and an avoiding portion 463 arranged in a cross shape, the avoiding portion 463 is arranged along the radial direction of the connecting rod seat 42, and is used to avoid the connecting rod 44, the accommodating portion 461 is arranged along a direction perpendicular to the radial direction of the connecting rod seat 42, and the hinge shaft 43 is inserted in the accommodating portion 461, thereby hingedly connecting the connecting rod 44 to the connecting rod seat 42. By providing the fixing grooves 46 on the connecting rod seat 42, the connection structure can be simplified, and it is convenient to connect the connecting rod 44 to the connecting rod seat 42.

[0051] like Figure 4 As shown, Figure 4 yes Figure 1 Schematic diagram of the three-dimensional structure of the lock pin member in FIG. A connecting portion 32 is protruding from one end of the lock pin member 30 close to the handle 20, and a connecting hole 321 is provided on the connecting portion 32. The lock pin member 30 is hinged to the connecting rod 44 through the connecting hole 321. In this embodiment, the lock pin member 30 is plate-shaped, and the connecting portion 32 and the lock pin member 30 are an integral structure. Specifically, the connecting portion 32 can be formed by bending a plate on the lock pin member 30 to reduce the number of components and simplify the fixing structure.

[0052] Furthermore, if Figure 1 and Figure 2As shown, the pot cover 100 further includes a limiting mechanism 50, which includes a guide column 52 and a stopper 54. The guide column 52 is connected to the side of the cover body 10 facing the handle 20, and the axial direction of the guide column 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 column 52, and the stopper 54 is connected to the end of the guide column 52 away from the cover body 10, so as to abut 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 column 52. By setting the limiting mechanism 50, this embodiment can limit the moving direction and maximum displacement of the handle 20 relative to the cover body 10.

[0053] Specifically, in this embodiment, the guide column 52 is disposed at the center of the cover body 10, the connecting rod seat 42 is movably sleeved on the periphery of the guide column 52, the handle 20 is connected to the connecting rod seat 42, and the guide column 52 is used to guide the connecting rod seat 42. By providing a stopper 54 at the end of the guide column 52, the connecting rod seat 42 can be stopped when the connecting rod seat 42 moves away from the cover body 10, so as to prevent the connecting rod seat 42 from slipping out of the guide column 52.

[0054] In another embodiment, the handle 20 may be movably sleeved on the periphery of the guide column 52 , and the handle 20 is connected to the connecting rod seat 42 , which is not specifically limited in the embodiment of the present invention.

[0055] Alternatively, if Figure 1 and Figure 2 As shown, the limiting mechanism 50 further includes an elastic member 56 , which is sandwiched between the stopper 54 and the connecting rod seat 42 or the handle 20 .

[0056] Specifically, the elastic member 56 is passed through the guide column 52 and clamped between the stopper 54 and the connecting rod 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 connecting rod seat 42 slowly squeezes the elastic member 56. The setting of the elastic member 56 can reduce the impact of the handle 20 or the connecting rod 44 on the stopper 54, and can make the movement of the locking pin 30 more stable. When the user releases the handle 20, the resetting effect 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 toward the cover 10, thereby driving the locking pin 30 to lock with the pot body.

[0057] Among them, in this embodiment, a spring is used as the elastic member 56. The advantage of using a spring is that the spring is a common elastic element, and it is easy to replace when the part is damaged. The spring has good stretchability and is easy to be squeezed. When squeezed to a certain extent, the reaction force is large. Of course, in other embodiments, other types of elastic members 56 can also be used, such as rubber springs, air springs or dampers, etc., which are not specifically limited in the embodiment of the present invention.

[0058] Among them, Figure 1 and Figure 2 As shown, the cover body 10 includes an inner cover body 12 and an outer cover body 14. The outer cover body 14 covers the inner cover body 12. The outer cover body 14 has an annular enclosure portion 142 centered on the handle 20. A guide groove 144 is formed on the annular enclosure portion 142. The locking pin 30 is arranged on the inner cover body 12 and movably penetrates into the guide groove 144.

[0059] Specifically, the lock pin 30 is arranged on the inner cover 12, and the annular enclosure 142 is arranged around the periphery of the inner cover 12. A guide groove 144 is formed at the position corresponding to the annular enclosure 142 and the lock pin 30. The guide groove 144 penetrates the annular enclosure 142, and the lock pin 30 is movably penetrated in the guide groove 144, and then performs telescopic movement under the restriction of the guide groove 144. By providing the guide groove 144 that cooperates with the lock pin 30, it is used to guide the lock pin 30, so that the movement of the lock pin 30 can be made more stable. The guide groove 144 penetrates the annular enclosure 142, which also facilitates the lock pin 30 to extend out of the annular enclosure 142 and lock with the pot body.

[0060] Alternatively, if Figure 1 As shown, a first guide portion is formed on the lock pin 30, and a second guide portion is formed on the cover body 10, and the first guide portion and the second guide portion cooperate with each other to limit the extension direction of the lock pin 30. By providing the first guide portion and the second guide portion that cooperate with each other, the lock pin 30 can be further guided so that the movement of the lock pin 30 is more precise.

[0061] Among them, in this embodiment, if Figure 1 and Figure 4 As shown, the cover body 10 is circular, the first guide portion is a waist-shaped hole 34 opened on the lock pin 30, and the length direction of the waist-shaped hole 34 is arranged along the radial direction of the cover body 10, and the second guide portion is a guide rod 16 arranged on the cover body 10, and the guide rod 16 is inserted into the waist-shaped hole 34. When the lock pin 30 performs telescopic movement relative to the cover body 10, the waist-shaped hole 34 moves relative to the guide rod 16, and the guide rod 16 can limit the moving direction of the lock pin 30.

[0062] In this embodiment, the guide rod 16 is disposed on the inner cover 12 so that the guide rod 16 cooperates with the locking pin 30 disposed on the inner cover 12. It can be understood that the guide rod 16 can also be disposed on the surface opposite to the outer cover 14 and the inner cover 12, and the embodiment of the present invention is not specifically limited.

[0063] In the above embodiment, the waist-shaped hole 34 is provided to slide with the guide rod 16 to guide the lock pin 30. In another embodiment, a slide rail and a slider that cooperate with each other can also be provided to guide the lock pin 30. For example, in one embodiment, the first guide portion is a slider provided on the lock pin 30, and the second guide portion is a slide rail provided on the cover body 10, the extension direction of the slide rail is provided along the radial direction of the cover body 10, and the slider slides with the slide rail. Alternatively, in another embodiment, the first guide portion is a slide rail provided on the lock pin 30, the extension direction of the slide rail is provided along the radial direction of the cover body 10, and the second guide portion is a slider provided on the cover body 10, and the slider slides with the slide rail. Of course, in other embodiments, other types of guide structures can also be provided, and the embodiments of the present invention are not specifically limited.

[0064] Furthermore, if Figure 5 As shown, Figure 5 yes Figure 3 The cross-sectional structure diagram of the pot cover when the upper pressure protection member in the pot cover moves to the limit lock pin member. The pot cover 100 also includes an upper pressure protection member 60, which is movably arranged on the cover body 10, and the upper pressure protection member 60 is used to limit the telescopic movement of the lock pin member 30 under the action of the pressure in the pot body. In this embodiment, by setting the upper pressure protection member 60 to limit the telescopic movement of the lock pin member 30 under the action of the pressure in the pot body when there is pressure in the pot body, it can be prevented that the user opens the pot cover 100 when there is pressure in the pot body due to mistaken operation, thereby improving the safety performance of the cooking pot.

[0065] In one embodiment, if Figure 1 and Figure 5 As shown, a mounting hole 18 is provided on the cover body 10, a locking hole 36 is provided on the locking pin member 30, a first portion of the upper pressure protection member 60 is passed through the locking hole 36, a second portion of the upper pressure protection member 60 is passed through the mounting hole 18 and is hung on the cover body 10, and the second portion of the upper pressure protection member 60 rises to the locking hole 36 under the action of the pressure in the pot body, thereby limiting the telescopic movement of the locking pin member 30.

[0066] 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 lock pin member 30 can move relative to the cover body 10 under the drive of the linkage mechanism 40. When there is pressure in the pot body, the upper pressure protection member 60 moves upward under the action of the pressure in the pot body, so that the second part is inserted into the locking hole 36. When the user pulls the handle 20, so that the lock pin member 30 tends to shrink inward, the second part of the upper pressure protection member 60 will abut against the lock pin member 30 to limit the lock pin member 30 from shrinking to perform the unlocking operation, thereby improving the safety performance of the product.

[0067] Furthermore, the margin of movement between the outer wall of the first part of the upper pressure protection member 60 and the inner wall of the locking hole 36 is greater than or equal to the maximum displacement of the locking pin member 30, and the margin of movement between the outer wall of the second part of the upper pressure protection member 60 and the inner wall of the locking hole 36 is set to be smaller than the displacement required for the locking pin member 30 to unlock.

[0068] Specifically, the margin of movement between the outer wall of the first portion of the upper pressure protection member 60 and the inner wall of the locking hole 36 refers to the maximum distance that the lock pin member 30 can move relative to the upper pressure protection member 60 when the first portion of the upper pressure protection member 60 is inserted into the locking hole 36. The maximum displacement of the lock pin member 30 refers to the maximum movement distance of the lock pin member 30 driven by the linkage mechanism 40. By setting the maximum movement distance of the lock pin member 30 relative to the upper pressure protection member 60 to be greater than or equal to the maximum displacement of the lock pin member 30, the upper pressure protection member 60 suspended on the cover body 10 can be prevented from interfering with the lock pin member 30 during the movement of the lock pin member 30.

[0069] The play margin between the outer wall of the second part of the press-on protective member 60 and the inner wall of the locking hole 36 refers to the maximum distance that the lock pin member 30 can move relative to the press-on protective member 60 when the second part of the press-on protective member 60 is inserted into the locking hole 36. The displacement required for the lock pin member 30 to be unlocked refers to the distance between the position of the lock pin member 30 when it is locked relative to the pot body and the position of the lock pin member 30 when it is just unlocked relative to the pot body. By setting the play margin between the outer wall of the second part of the press-on protective member 60 and the inner wall of the locking hole 36 to be smaller than the displacement required for the lock pin member 30 to be unlocked, it is possible to avoid the lock pin member 30 being unlocked relative to the pot body when the second part of the press-on protective member 60 is inserted into the locking hole 36.

[0070] The upper pressure protection member 60 may be configured as an integral structure or may be configured to include at least two components, which is not specifically limited in the embodiment of the present invention. Figure 5 and Figure 6 As shown, Figure 6 yes Figure 5 Schematic diagram of the cross-sectional structure of the upper pressure protection member in the figure. The upper pressure protection member 60 may include a movable sleeve 62, an indicator rod 64 and an abutment member 66. The movable sleeve 62 is inserted into the mounting hole 18, the indicator rod 64 is inserted into the locking hole 36 and connected to the movable sleeve 62, an annular flange 642 is provided on the indicator rod 64, and the outer diameter of the annular flange 642 is larger than the diameter of the mounting hole 18, so that the movable sleeve 62 can be hung on the cover body 10, and the abutment member 66 is connected to the movable sleeve 62, and the outer diameter of the abutment member 66 is larger than the diameter of the mounting hole 18, wherein, under the action of the internal pressure of the pot body, the movable sleeve 62 rises into the locking hole 36, thereby limiting the telescopic movement of the locking pin member 30, and at the same time, the abutment member 66 abuts against the cover body 10, thereby sealing the mounting hole 18.

[0071] Specifically, one end of the indicator rod 64 is connected to the movable sleeve 62, and the other end of the indicator rod 64 can extend out of the pot cover 100 under the action of the pressure in the pot body, so as to indicate the pressure in the pot body. The outer diameter of the annular flange 642 on the indicator rod 64 is larger than the diameter of the mounting hole 18, so that the upper pressure protection member 60 can be hung on the cover body 10. The abutment member 66 is arranged on the side of the cover body 10 away from the indicator rod 64, and is used to abut against the inner side of the cover body 10 when the movable sleeve 62 rises, so as to prevent the upper pressure protection member 60 from falling out of the mounting hole 18.

[0072] Alternatively, if Figure 6 As shown, an annular groove 622 is provided on the outer wall of the movable sleeve 62, and the abutment member 66 is an annular elastic ring, which is clamped in the annular groove 622. By providing the annular elastic ring, on the one hand, it is convenient to install and fix the abutment member 66, and on the other hand, it can also enhance the sealing effect of the abutment member 66 on the mounting hole 18.

[0073] like Figure 7 and Figure 8 As shown, Figure 7 is a schematic diagram of the exploded structure of a cooking pot in another embodiment of the present invention, Figure 8 yes Figure 7 The present invention also provides a cooking pot 200, which includes a pot body 210 and a pot cover 220. The inner surface of the open end of the pot body 210 is formed with a locking member. When the lid 221 is covered on the pot body 210, the locking pin 225 cooperates with the locking member to lock the pot cover 220 and the pot body 210.

[0074] In this embodiment, the structure of the pot cover 220 is the same as the structure of the pot cover 100 described in the above embodiment. Please refer to the description in the above embodiment and will not be repeated here.

[0075] Optionally, there are at least two locking members, which are arranged at intervals around the circumference of the open end of the pot body 210. A positioning groove 214 is formed at the open end of the pot body 210, and a positioning block 223 is formed on the cover body 221. When the positioning block 223 cooperates with the positioning groove 214, the locking pin 225 and the locking member are aligned with each other.

[0076] The number of the locking members can be equal to the number of the locking pin members 225. When the positioning block 223 cooperates with the positioning groove 214, the locking members correspond to the locking pin members 225 one by one. In this embodiment, by providing the positioning block 223 and the positioning groove 214 that cooperate with each other, the locking member and the locking pin member 225 can be easily aligned, so that the locking pin member 225 and the locking member can be locked.

[0077] In this embodiment, if Figure 7As shown, there are two positioning blocks 223, which are respectively arranged on opposite sides of the cover 221, and the positioning groove 214 is provided at the position corresponding to the positioning block 223 at the opening end of the pot body 210. It can be understood that in another embodiment, the positioning block 223 can also be arranged at the opening end of the pot body 210, and the positioning groove 214 can be formed on the pot cover 220, which is not specifically limited in the embodiment of the present invention. Among them, the number of positioning blocks 223 can also be one, three or more, and the present invention does not limit the number of positioning blocks 223.

[0078] Alternatively, if Fig. 9 and Fig.10 As shown, Fig. 9 yes Figure 8 Schematic diagram of the three-dimensional structure of the pot body, Fig.10 yes Fig. 9 Schematic diagram of a partially enlarged cross-sectional structure of the pot body in FIG. In this embodiment, the locking member is configured as a locking pin groove 212, and the locking pin groove 212 is formed by the inner surface of the open end of the pot body 210 being recessed inwardly. By recessing the locking pin groove 212, the contact area between the locking pin member 225 and the locking pin groove 212 can be increased, thereby improving the connection stability between the locking pin member 225 and the locking pin groove 212, and improving the connection force between the pot cover 220 and the pot body 210.

[0079] In another embodiment, a locking pin groove 212 may be provided to penetrate the open end of the pot body 210, and a reinforcing rib may be formed on the outer side wall of the pot body 210, and the reinforcing rib is arranged around the periphery of the locking pin groove 212. Specifically, a reinforcing rib may be provided on the side where the locking pin groove 212 contacts the locking pin member 225, and when the locking pin member 225 is inserted into the locking pin groove 212, the locking pin member 225 abuts against the side wall and the reinforcing rib of the locking pin groove 212 at the same time. By providing the reinforcing rib, on the one hand, the strength of the locking pin groove 212 may be improved, and on the other hand, the contact area between the locking pin member 225 and the locking pin groove 212 may be increased, thereby improving the connection stability between the locking pin member 225 and the locking pin groove 212, and improving the connection force between the pot cover 220 and the pot body 210.

[0080] Furthermore, if Fig.11 and Fig.12 As shown, Fig.11 yes Figure 7 A schematic diagram of the planar structure of the locking pin member in FIG. Fig.12 yes Fig. 9 The plane structure diagram of the pot body in FIG. The surface where the lock pin 225 contacts the lock pin groove 212 is an arc surface, and the surface where the lock pin groove 212 contacts the lock pin 225 is an arc surface, and the arc surface of the lock pin groove 212 matches the arc surface of the lock pin 225. By setting the contact surface between the lock pin groove 212 and the lock pin 225 as an arc surface, the strength of the lock pin groove 212 can be enhanced.

[0081] Optionally, in this embodiment, the length of the chord corresponding to the arc where the arc surface is located is set to 2-300 mm, and the height of the arc surface along the radial direction of the arc is set to 0-50 mm. Fig.11 and Fig.12 As shown, the length of the chord corresponding to the arc where the arc surface is located is W, and the height of the arc surface along the radial direction of the arc is H, wherein the value of W can be 2mm, 5mm, 10mm, 20mm, 30mm, 40mm, 50mm, 60mm, 70mm, 80mm, 90mm, 100mm, 120mm, 140mm, 160mm, 180mm, 200mm, 220mm, 240mm, 260mm, 280mm or 300mm, etc. The value of H can be 5mm, 10mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm or 50mm, etc., and can be flexibly set according to needs, and the embodiment of the present invention does not make specific limitations.

[0082] In the above embodiment, 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 using the positioning block 223 and the positioning groove 214 that cooperate with each other so that the locking pin member 225 is aligned with the locking pin groove 212 .

[0083] In another embodiment, the locking pin groove 212 may be arranged circumferentially around the inner surface of the open end of the pot body 210. The cross-sectional shape of the locking pin groove 212 may be the same as or different from the cross-sectional shape of the locking pin groove 212 in the above embodiment, and the embodiment of the present invention does not specifically limit it. By forming an annular locking pin groove 212 at the open end of the pot body 210, the pot cover 220 can be connected with the pot body 210 when it is at any angle, without the need to set a positioning structure, and the operation is more convenient.

[0084] In the above embodiment, the pot body 210 and the pot cover 220 are locked by opening a locking pin groove 212 on the inner surface of the open end of the pot body 210. In other embodiments, other types of locking components can be provided for cooperating with the locking pin component 225. The embodiment of the present invention does not limit the structure of the locking component.

[0085] To sum up, different from the prior art, the embodiment of the present invention is characterized in that the handle 20 that can move closer to and away from the cover body 10 is provided, and the movement of the handle 20 in the direction of moving closer to and away from the cover body 10 is converted into the telescopic movement of the locking pin 30 through the linkage mechanism 40, thereby realizing the opening and closing of the pot lid 100, so that the opening and closing actions can be completed quickly, and the user experience is better.

[0086] The above description is only an implementation mode of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A pot cover, It is characterized in that The pot cover comprises: A cover body, used for covering the open end of the pot body; A handle, which is telescopically and movably arranged on the cover body; At least two locking pins are disposed in the cover body and radially arranged relative to the handle; A linkage mechanism is connected between the handle and the locking pin, and drives the locking pin to perform a telescopic movement during the extension and retraction of the handle, so that the pot cover and the pot body are locked and unlocked; An upward pressure protection member is movably arranged on the cover body, and is used to limit the telescopic movement of the locking pin member under the action of the pressure in the pot body.

2. The pot cover according to claim 1, It is characterized in that The linkage mechanism comprises a connecting rod seat and at least two connecting rods. The connecting rod seat is connected to one end of the handle close to the cover body. Both ends of each connecting rod are respectively hinged to the connecting rod seat and the corresponding locking pin.

3. The pot cover according to claim 2, It is characterized in that The pot cover also includes a limiting mechanism, which includes a guide column and a stopper, wherein the guide column is connected to a side of the cover body facing the handle, and the axial direction of the guide column is parallel to the moving direction of the handle, the connecting rod seat and the handle are movably sleeved on the periphery of the guide column, and the stopper is connected to the end of the guide column away from the cover body so as to abut the connecting rod seat or the handle when the connecting rod seat or the handle moves to the end of the guide column.

4. The pot cover according to claim 3, It is characterized in that The limiting mechanism also includes an elastic member, and the elastic member is clamped between the stopper and the connecting rod seat or the handle.

5. The pot cover according to claim 1, It is characterized in that The cover body includes an inner cover body and an outer cover body, the outer cover body covers the inner cover body, the outer cover body has an annular enclosure portion centered on the handle, a guide groove is formed on the annular enclosure portion, and the locking pin is arranged on the inner cover body and movably penetrates into the guide groove.

6. The pot cover according to claim 1, It is characterized in that A first guide portion is formed on the locking pin component, and a second guide portion is formed on the cover body. The first guide portion and the second guide portion cooperate with each other to limit the telescopic direction of the locking pin component.

7. The pot cover according to claim 6, It is characterized in that The first guide portion is a waist-shaped hole opened on the locking pin, and the length direction of the waist-shaped hole is arranged along the radial direction of the cover body. The second guide portion is a guide rod arranged on the cover body, and the guide rod is inserted into the waist-shaped hole.

8. The pot cover according to claim 6, It is characterized in that The first guide portion is a slider disposed on the locking pin, the second guide portion is a slide rail disposed on the cover body, the slide rail extends in a radial direction of the cover body, and the slider is slidably matched with the slide rail; or The first guide portion is a slide rail disposed on the locking pin, and the extension direction of the slide rail is disposed along the radial direction of the cover body. The second guide portion is a slider disposed on the cover body, and the slider is slidably matched with the slide rail.

9. The pot cover according to claim 2, It is characterized in that The connecting rod seat is disc-shaped, at least two connecting rods are connected and evenly distributed on the periphery of the connecting rod seat, and the extending direction of the connecting rod passes through the axis of the connecting rod seat.

10. The pot cover according to claim 9, It is characterized in that A fixing groove is provided on the connecting rod seat, and the fixing groove includes a receiving portion and an avoidance portion. A hinge shaft is provided at one end of the connecting rod hinged to the connecting rod seat. The hinge shaft is movably arranged in the receiving portion, and the axial direction of the hinge shaft is perpendicular to the radial direction of the connecting rod seat. The connecting rod is inserted into the avoidance portion.

11. The pot cover according to claim 1, It is characterized in that The cover body is provided with a mounting hole, the lock pin member is provided with a locking hole, the first portion of the upper pressure protection member is passed through the locking hole, the second portion of the upper pressure protection member is passed through the mounting hole and is hung on the cover body, and the second portion of the upper pressure protection member rises to the locking hole under the action of the pressure in the pot body, thereby limiting the telescopic movement of the lock pin member.

12. The pot cover according to claim 11, It is characterized in that The margin of movement between the outer wall of the first part of the upper pressure protection piece and the inner wall of the locking hole is greater than or equal to the maximum displacement of the locking pin piece, and the margin of movement between the outer wall of the second part of the upper pressure protection piece and the inner wall of the locking hole is set to be smaller than the displacement required for the locking pin piece to unlock.

13. The pot cover according to claim 11, It is characterized in that The upper pressure protection member includes a movable sleeve, an indicator rod and a contact member, the movable sleeve is inserted into the mounting hole, the indicator rod is inserted into the locking hole and connected to the movable sleeve, an annular flange is provided on the indicator rod, the outer diameter of the annular flange is larger than the diameter of the mounting hole, so that the movable sleeve can be hung on the cover body, the contact member is connected to the movable sleeve, and the outer diameter of the contact member is larger than the diameter of the mounting hole, wherein, under the action of the pressure in the pot body, the movable sleeve rises into the locking hole, thereby limiting the telescopic movement of the locking pin member, and at the same time, the contact member forms an abutment with the cover body, thereby sealing the mounting hole.

14. The pot cover according to claim 13, It is characterized in that An annular groove is arranged on the outer wall of the movable sleeve, and the abutment member is an annular elastic ring, which is clamped in the annular groove.

15. A cooking pot, It is characterized in that The cooking pot comprises a pot body and a pot cover as described in any one of claims 1 to 14, a locking piece is formed on the inner surface of the open end of the pot body, and when the cover is placed on the pot body, the locking pin cooperates with the locking piece to lock the pot cover and the pot body.

16. The cooking pot according to claim 15, It is characterized in that There are at least two locking members, and at least two locking members are arranged at circumferential intervals around the open end of the pot body. A positioning groove is formed at the open end of the pot body, and a positioning block is formed on the cover body. When the positioning block cooperates with the positioning groove, the locking pin and the locking member are aligned with each other.

17. The cooking pot according to claim 16, It is characterized in that The locking member is a locking pin groove, and the locking pin groove is formed by an inward depression of the inner surface of the open end of the pot body; or The locking pin groove passes through the open end of the pot body, and 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.

18. The cooking pot according to claim 17, It is characterized in that The surface of the lock pin groove in contact with the lock pin member is an arc surface, and the surface of the lock pin member in contact with the lock pin groove is an arc surface. The arc surface of the lock pin groove is matched with the arc surface of the lock pin member.

19. The cooking pot according to claim 18, It is characterized in that The length of the chord corresponding to the arc where the arc surface is located is 2-300 mm, and the height of the arc surface along the radial direction of the arc is 0-50 mm.

20. The cooking pot according to claim 15, It is characterized in that The locking member is arranged around the circumference of the inner surface of the opening end of the pot body.

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