CN106580074B - Electric pressure cooker convenient to open cover - Google Patents

Abstract

The invention provides an electric pressure cooker convenient for opening a cover, which comprises a cooker body, a cooker cover and a buckle piece, wherein the cooker cover comprises an inner lining and a locking cover positioned below the inner lining, the buckle piece comprises a movable clamping piece arranged on the inner lining and a fastening piece positioned on the cooker body, the cooker cover is buckled with the cooker body through the buckle piece, an opening cover component is arranged on the inner lining, the opening cover component drives the locking cover to rotate, the locking cover rotates to realize locking and unlocking of the locking cover and the cooker body, an unlocking piece is arranged on the locking cover, the distance between the unlocking piece and the center of the locking cover is 1/5-4/5 of the radius of the locking cover, an avoiding groove is formed in the inner lining, the unlocking piece penetrates through the avoiding groove to extend to the upper surface of the inner lining, the opening cover component drives the locking. The electric pressure cooker of the invention opens the cooker cover through one rotation step, thereby being convenient for users to use.

Description

electric pressure cooker convenient to open cover

Technical Field

The invention relates to the field of kitchen cooking appliances, in particular to an electric pressure cooker with a cover convenient to open.

Background

Common disjunctor formula electric pressure cooker in existing market usually includes the pot body, articulates pot cover and the buckle spare on the pot body, and the buckle spare is for establishing the movable fastener on the pot cover and being located the fastener on the pot body, and the pot cover passes through buckle spare and pot body lock. The cooker cover comprises a locking cover, cover teeth are arranged on the locking cover, cooker teeth are arranged on the cooker body, and the locking cover and the cooker body are locked and unlocked through the cooker teeth and the cover teeth. When the cover of the electric pressure cooker is opened, the cover opening assembly drives the locking cover to rotate together, cover teeth on the locking cover are staggered with pot teeth on the pot body, the cover opening button is pressed at the second step, and the movable clamping piece is triggered to separate the buckling piece, so that the pot cover is separated from the pot body.

Therefore, the uncovering step is performed step by step, so that the use is inconvenient, the user experience is reduced, and the improvement is needed.

Disclosure of Invention

The present invention aims to solve, to some extent, one of the above-mentioned problems of the prior art. Therefore, the electric pressure cooker with the cover convenient to open is simple and convenient to open and use.

In order to achieve the purpose, the technical scheme of the invention is as follows: the utility model provides an electric pressure cooker that conveniently uncaps, includes the pot body, pot cover and buckle spare, the pot cover includes the inside lining and is located the locking closure of inside lining below, and buckle spare is including establishing the movable fastener on the inside lining and the fastener that is located the pot body, the pot cover passes through buckle spare and pot body lock, be equipped with the subassembly of uncapping on the inside lining, it is rotatory that the subassembly of uncapping drives the locking closure and the unblock of the pot body, be equipped with the fastener of unbuckling on the locking closure, the fastener is apart from the locking closure central distance for the radial 1/5-4/5 of locking closure, be equipped with on the inside lining and dodge the groove, the fastener passes dodge the groove and extend to the inside lining upper surface, and the subassembly of uncapping drives the locking closure unblock.

In an embodiment of the invention, a transmission member is arranged on the upper surface of the liner, one end of the transmission member is connected with the trip member, the other end of the transmission member is connected with the movable clamping member, when the locking cover is unlocked and rotated, the trip member triggers the transmission member, the transmission member triggers the movable clamping member, and the movable clamping member and the fastening member are separated to open the pot cover.

In an embodiment of the present invention, the transmission member is a rotary transmission member, the lining is provided with a positioning column, the rotary transmission member is fixed on the upper surface of the lining through the positioning column, and the rotary transmission member rotates around the positioning column to be linked with the movable clamping member.

In an embodiment of the present invention, the movable clip is located at an edge of the locking cover. Namely, the distance between the movable clamping piece and the center of the locking cover is about the radius of the locking cover, and the difference between the distance and the radius of the locking cover is plus or minus 20 percent, which can be understood as the edge of the locking cover.

in an embodiment of the present invention, a guide inclined surface is disposed at an end of the transmission member connected to the movable clamping member, and the transmission member acts on the movable clamping member through the guide inclined surface.

In an embodiment of the present invention, an elastic device for driving the locking cover to rotate is disposed on the pot cover, and after the pot cover is opened, the elastic device drives the locking cover to rotate.

In an embodiment of the invention, the elastic device comprises a first elastic device acting on the movable clamping piece, when the locking cover is unlocked and rotated, the first elastic device deforms when the movable clamping piece is acted, and the movable clamping piece and the fastener are separated to open the pot cover; when the pot cover is opened, the first elastic device recovers to deform to drive the movable clamping piece to return, and the movable clamping piece returns to act on the locking cover to rotate.

In one embodiment of the invention, the cooker cover is provided with a second elastic device acting on the transmission member, when the locking cover is unlocked and rotated, the second elastic device deforms when the release member triggers the transmission member, the transmission member triggers the movable clamping member, and the movable clamping member and the fastener are separated to open the cooker cover; when the pot cover is opened, the second elastic device recovers to deform to drive the transmission piece to rotate.

In an embodiment of the present invention, the door opening assembly is a rotary door opening assembly or a movable door opening assembly.

In an embodiment of the invention, the electric pressure cooker further comprises a torsion spring, one end of the torsion spring is fixed on the cooker body, the other end of the torsion spring is fixed on the cooker cover, and when the movable clamping piece is separated from the fastener, the torsion spring enables the cooker cover to be bounced open.

The invention has the beneficial effects that:

1. According to the electric pressure cooker, the cover opening assembly drives the locking cover to unlock and rotate, the movable clamping piece and the fastener are separated under the action of the unlocking piece arranged on the locking cover, so that the cooker cover is opened, the cooker cover can be opened in one rotating step, and the electric pressure cooker is convenient for users to use. Because the movable clamping piece needs to return to ensure the next fastening after the pot cover is opened, and the rotation of the locking cover can realize the unlocking and locking with the pot body, generally speaking, after the pot cover is opened, in order to ensure the pot cover can be fastened again, the movable clamping piece needs to return, if the locking cover rotates, the cover teeth on the locking cover and the pot teeth on the pot body can collide with each other, so the locking cover cannot rotate, and generally, the movable clamping piece can not be acted by directly arranging the unlocking piece on the locking cover. And because the locking cover is positioned below the lining, the movable clamping piece is arranged on the lining, and the rotation of the locking cover can not act on the movable clamping piece.

2. The distance between the tripping piece and the center of the lock cover is 1/5-4/5 of the radius of the lock cover, so that the action stroke of the tripping piece can be reduced, the tripping action stroke can be matched with the tripping stroke of the movable clamping piece, and the strength of the lining can be ensured not to be greatly weakened. Because the movable clamping piece is located at the edge of the lock cover, the tripping piece should be arranged at the edge of the lock cover to be matched and linked with the movable clamping piece under the normal condition. However, on the premise that the unlocking rotation angle is constant, when the distance from the unlocking piece to the center of the lock cover is greater than 4/5 of the radius of the lock cover, the action stroke of the unlocking piece is too large and is not matched with the tripping stroke of the movable clamping piece, so that the tripping action stroke of the movable clamping piece is far greater than the required stroke of the movable clamping piece for disengaging from the clamping piece. When the distance between the release piece and the center of the locking cover is less than 1/5 of the radius of the locking cover, the action stroke of the release piece is too small, so that the release action stroke of the movable clamping piece is far less than the required stroke for the movable clamping piece to be separated from the clamping piece. Because it dodges the groove to correspond the piece of unbuckling on the inside lining and be provided with, the piece of unbuckling is located middle zone, can also avoid dodging the groove setting and too leaning on the edge and influence the intensity of inside lining, influence the life of inside lining.

3. The unlocking piece is arranged on the lock cover, and the movable clamping piece is triggered by the unlocking piece to open the lock cover in the rotating process of the lock cover. Because the unblock of locking closure must need rotatory, makes the activity fastener uncap with the help of the rotation of locking closure, need not set up in addition rotary part on other parts of pot cover and act on the activity fastener, simple structure practices thrift the cost.

4. The driving part is arranged between the tripping part and the movable clamping part to realize transmission, and the invention has good reliability and high stability. So that the arrangement positions of the release member and the movable clamping member can be unlimited.

5. The movable clamping piece is provided with the first elastic device, so that the movable clamping piece can return after the cover is opened, and the next cover closing and buckling can be realized. Furthermore, the rotation of the transmission member can be realized.

6. The transmission part is also provided with a second elastic device, and the rotation of the transmission part is further realized after the cover is opened. Because the gyration of driving medium can be first resilient means and realize, set up behind the second resilient means, can help first resilient means, the gyration of driving medium is realized to the combined action of the two, and then realizes the gyration of locking closure. If only realize the driving medium gyration through first resilient means, need first resilient means to take place great deformation, produce great resilience force, and this can influence the handle when pot cover lock, through increasing second resilient means, can share the required resilience force that produces of first resilient means, ensure that the pot cover lock is felt well.

7. The tripping piece extends to the upper surface of the lining and then acts with the movable clamping piece, horizontal acting force is applied to the transmission piece in the rotating and unlocking process, the transmission piece returns and applies force to the tripping piece after the cover is opened, so that the acting force between the transmission piece and the tripping piece is free from friction and other losses, the force transmission efficiency is high, and the locking cover can be ensured to rotate. The movable clamping piece is separated from the fastener, and can be buckled with the fastener in order to ensure that the movable clamping piece can be buckled with the fastener when the cover is closed next time, the movable clamping piece needs to return, the action of the movable clamping piece is realized by rotating the unlocking piece through the locking cover, the return of the movable clamping piece can react with the unlocking piece to enable the locking cover to rotate, if friction loss exists in the process, the locking cover cannot rotate, the movable clamping piece cannot return, the transmission piece and the unlocking piece are horizontal acting force mutually, the mutual transmission of the acting force can be effectively realized, and the locking cover can rotate after the cover is opened. Therefore, the movable clamping piece can return, and the pot cover can be buckled after the cover is opened.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

FIG. 1 is a perspective view of an electric pressure cooker according to an embodiment of the present invention;

FIG. 2 is an exploded view of the lid of an electric pressure cooker according to an embodiment of the present invention;

FIG. 3 is a schematic diagram illustrating a locked state of a locking cover according to an embodiment of the present invention;

FIG. 4 is a schematic view of a lock cover about to be opened according to an embodiment of the present invention;

FIG. 5 is a schematic view of a lock cover of the present invention fully opened;

FIG. 6 is a schematic view illustrating retraction of a fork member according to an embodiment of the present invention;

FIG. 7 is a schematic view of a locking cover according to an embodiment of the present invention;

FIG. 8 is an exploded view of the lid of the electric pressure cooker according to the second embodiment of the present invention;

FIG. 9 is a schematic view of the lid assembly of the electric pressure cooker according to the second embodiment of the present invention;

Fig. 10 is an assembly view of the release member according to the second embodiment of the present invention.

Reference numerals:

The pot body 1, the fastener 11, the inner container 12, the pot cover 2, the locking cover (steel cover) 21, the locking cover column 211, the unfastening part 212, the connecting part 213, the inner liner 22, the first avoiding groove 221, the second avoiding groove 222, the surface cover 23, the movable clamping part 3, the shifting fork part 4, the through hole 41, the rotary transmission part 5, the rotary handle 6, the control part 61, the positioning column 7, the first elastic device 8, the second elastic device 9 and the screw 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

the invention provides an electric pressure cooker convenient for opening a cover, please refer to fig. 1-7, which comprises a cooker body 1, a cooker cover 2 and a fastener, the pot cover 2 comprises an inner liner 22 and a locking cover 21 positioned below the inner liner 22, the fastener comprises a movable fastener 3 arranged on the inner liner 22 and a fastener 11 positioned on the pot body 1, the cooker cover 2 is buckled with the cooker body 1 through a buckle part, the lining 22 is provided with a cover opening component, the cover opening component drives the locking cover 21 to rotate, the locking cover 21 rotates to realize the locking and unlocking of the locking cover 21 and the cooker body 1, the locking cover 21 is provided with a releasing piece 212, the distance between the releasing piece 212 and the center of the locking cover 21 is 1/5-4/5 of the radius of the locking cover 21, an avoiding groove is formed in the lining 22, the releasing piece 212 penetrates through the avoiding groove and extends to the upper surface of the lining 22, the cover opening assembly drives the locking cover 21 to unlock and rotate, and the releasing piece 212 acts on the movable clamping piece 2 and separates from the clamping piece 11. In the process of unlocking and rotating the locking cover 21 in the embodiment, the unlocking piece 212 acts on the movable clamping piece 3 to open the pot cover 2. Specifically, in the process of unlocking and rotating, namely, in the process of rotating the locking cover 21 to the unlocking direction, the locking cover 21 is unlocked with the pot body 1, and the movable clamping piece 2 is separated from the fastener 11, so that the cover can be opened. The locking cover 21 and the pot body 1 are unlocked firstly, and then the movable clamping piece 2 is separated from the fastener 11; the movable clamping piece 2 and the fastener 11 can be separated firstly, and then the locking cover 21 and the pot body 1 are unlocked; the locking cover 21 can be unlocked with the pot body 1, and the movable clamping piece 2 is separated from the fastener 11.

in this embodiment, the subassembly of uncapping is for rotating the subassembly of uncapping, and it is rotatory to drive the locking closure through the rotation of rotating the subassembly of uncapping promptly, and the rotation subassembly of uncapping of this embodiment is established on inside lining 22, and it includes rotatory handle 6 and fork member 4, and user's manual operation is rotatory handle 6, and it drives fork member 4 rotatory, and fork member 4 drives the locking closure 21 rotation, realizes locking closure 21 and the locking of the pot body 1. Specifically, be equipped with the lid tooth on the locking closure 21, be equipped with the pot tooth on the pot body 1, realize the closure and the unblock of locking closure 21 and pot body 1 through the cooperation of pot tooth and lid tooth, locking closure 21 has both realized the unblock of locking closure 21 with pot body 1 at unblock pivoted in-process, has also realized the part of buckle spare, and the fastener 212 that unlocks promptly is used movable fastener 3, and movable fastener 3 and fastener 11 part make the pot cover 2 is opened. Specifically, the electric pressure cooker further comprises a torsion spring, one end of the torsion spring is fixed on the cooker body 1, the other end of the torsion spring is fixed on the cooker cover 2, and after the movable clamping piece 3 is separated from the fastener 11, the torsion spring enables the cooker cover 1 to be bounced open. The release member 212 can directly or indirectly trigger the movable clamping member 3 to open the pot cover 2, so that the pot cover 2 can be opened in one rotation step, and the use by a user is facilitated. It can be understood that the unlocking of the lock cover 21 and the pan body 1 refers to the position of staggered pan teeth and cover teeth, and the locking of the lock cover 21 and the pan body 1 refers to the position of engaged pan teeth and cover teeth.

in the present embodiment, the release 212 acts as a catch during the unlocking rotation of the lock cover 21. The rotation angle of the locking cover 21 from the first setting position (the pot tooth is just staggered with the cover tooth) to the unlocking and uncovering position (the position corresponding to the locking cover at the moment of the opening of the pot cover) is alpha, and preferably, the angle alpha is 0-10 degrees. When the angle is 0, it can be understood that the first set position coincides with the unlock door opening position. When the angle is smaller than 0, the unlocking and uncovering position is reached firstly (namely the movable buckle is separated firstly), and then the first set position is reached (namely the pot teeth and the cover teeth are just staggered). When the angle is larger than 10 °, the locking cover 21 still needs to rotate by a larger angle after unlocking to separate the movable buckles, and the cover teeth on the locking cover 21 are generally uniformly distributed on the locking cover 21, which may cause the cover teeth to bite into the next pot teeth to affect the opening of the pot cover. Therefore, the angle α is preferably 0 to 10 °, specifically, 0, 2 °, 5 °, 8 °, 10 °, or the like. Because the release member 212 also acts on the fastener as an interval, in this embodiment, the release member 212 may act on the movable fastener before the first setting position, may act on the movable fastener after the first setting position, or may act on the movable fastener just when the first setting position. The point at which the release member 212 completes the action of the movable jaw member 3 may be either before the first set position, after the first set position, or just at the first set position.

In this embodiment, the upper surface of the liner 22 is provided with a transmission member, when the locking lid 21 is unlocked and rotated, the unlocking member 212 triggers the transmission member, the transmission member triggers the movable clamping member 3, and the movable clamping member 3 and the fastening member 11 are separated to open the lid 2. Preferably, the end of the transmission member connected with the movable clamping member 3 is provided with a guide inclined surface, the transmission member acts on the movable clamping member 3 through the guide inclined surface, and correspondingly, the movable clamping member 3 is also provided with a corresponding matching inclined surface, so that the transmission member can smoothly act on the movable clamping member 3. Specifically, in this embodiment, the driving medium is rotating transmission part 5, be equipped with reference column 7 on the inside lining 22, rotating transmission part 5 passes through reference column 7 to be fixed on inside lining 22, and rotating transmission part 5 rotates around reference column 7 and comes to link with activity card 3. When the locking cover 21 rotates to the unlocking and opening position, one end of the rotating transmission part 5 acts on the unlocking part 212 on the locking cover 21, the other end of the rotating transmission part acts on the movable clamping part 3, the opening assembly drives the locking cover 21 to unlock and rotate, and the movable clamping part 3 and the fastening part 11 are separated to open the pot cover 2. The positioning column 7 may be a screw column on the inner liner 22, a through hole is provided in the middle of the rotating transmission member 5, the screw column penetrates through the through hole, and then a screw is screwed to fix the rotating transmission member 5 on the inner liner 22, and the rotating transmission member 5 can rotate around the screw column. The invention realizes transmission by arranging the rotary transmission piece 5 between the tripping piece 212 and the movable clamping piece 3, and has the advantages of direct and obvious acting force, less middle loss force, good reliability and high stability. And owing to be provided with the driving medium for the setting position of separating fastener and activity fastener can be unrestricted. It is also possible to avoid the need to specially provide the release member or the movable jaw member with a length that is too long to allow the coupling action between the two.

In the present embodiment, the rotation handle 6 is provided with a manipulation unit 61, and the rotation of the rotation handle 6 is realized by the manipulation unit 61. The pot cover 2 further comprises a face cover 23, and the control part 61 protrudes out of the surface of the face cover 23. The user can operate the swing handle 6 through the operation unit 61 to swing the swing handle 6. The manipulation part and the rotating handle 6 are integrally formed or separately formed. When the manipulation part is integrally formed with the rotation handle 6, stability is better. And when the two are formed separately, the mold is more convenient to manufacture and remove. The uncapping assembly of this embodiment comprises rotation handle 6 and shift fork spare 4, and the subassembly of uncapping also can be that the two integrated into one piece forms.

in this embodiment, the pot cover 2 is further provided with an elastic device for driving the locking cover 21 to rotate, and after the pot cover 2 is opened, the elastic device drives the locking cover 21 to rotate. The locking cover 21 is in the process of unlocking and rotating, the elastic device deforms, and after the pot cover 2 is opened, the elastic device recovers deformation to drive the locking cover 21 to rotate. In particular, when the release member 212 starts to act on the movable jaw 3, the elastic means are deformed. And after the lid is opened, the locking lid 21 is rotated back by the elastic means since the force of the lid opening assembly is released. Because the unlocking member 212 of the present invention is disposed on the locking cap 21, the movable latching member is unlocked by the rotation of the locking cap 21, and the locking cap 21 is rotated when the movable latching member is returned after being unlocked. Specifically, the elastic device comprises a first elastic device 8 acting on the movable clamping piece 3, when the shifting fork piece 4 drives the locking cover 21 to unlock and rotate, the unlocking piece 212 triggers the rotary transmission piece 5 to rotate, the first elastic device 8 deforms when the rotary transmission piece 5 triggers the movable clamping piece 3, and the movable clamping piece 3 and the fastener 11 are separated to open the pot cover 2; when the pot cover 2 is opened, the first elastic device 8 recovers deformation to drive the rotary transmission member 5 to rotate. The rotation transmission member 5 is rotated to act on the release member 212, thereby driving the locking lid 21 to rotate. The first elastic means 8 may be a spring or a torsion spring or the like. Because be equipped with first resilient means 8 on activity fastener 3, can ensure to close lid lock next time in the return of activity fastener 3 after uncapping, moreover, can realize the gyration of rotating-driving spare 5.

in this embodiment, the elastic device includes a second elastic device 9 acting on the rotating transmission member 5, when the shifting fork member 4 drives the locking lid 21 to unlock and rotate, the unlocking member 212 triggers the rotating transmission member 5 to rotate while the second elastic device 9 deforms, the rotating transmission member 5 triggers the movable clamping member 3, and the movable clamping member 3 and the fastening member 11 are separated to open the lid 2; when the cooker cover 2 is opened, the second elastic device 9 recovers deformation to drive the rotary transmission member 5 to rotate. The second elastic means 9 is a spring. One end of the spring is fixed with the rotating transmission piece 5, and the other end is fixed on the lining 22. Because the inner liner 22 is always fixed, the rotating transmission member 5 can move relative to the inner liner 22, when the rotating transmission member 5 is triggered by the releasing member 212 to move relative to the inner liner 22, the spring is deformed, specifically, the deformation can be compression or stretching or bending, and the like, and after the pot lid 2 is opened, the force applied to the releasing member 212 is released, the second elastic device 9 recovers the deformation to drive the rotating transmission member 5 to rotate. The rotation of the rotating transmission member 5 also drives the release member 212 to rotate, thereby rotating the locking cover 21. Because the second elastic device 9 is also arranged on the rotating transmission member 5, the rotation of the rotating transmission member 5 is further realized after the cover is opened. Because the gyration of the rotating transmission member 5 can be realized by the first elastic device 8, after the second elastic device 9 is arranged, the gyration of the rotating transmission member 5 can be realized by the first elastic device 8 under the combined action of the first elastic device and the second elastic device, and then the gyration of the release member 212 is realized, and the locking cover 21 is further made to gyrate. If only realize the gyration of rotating-driving spare 5 through first resilient means 8, need first resilient means 8 to take place great deformation, produce great resilience force, and this can influence the feeling when 2 buckles of pot cover, through increasing second resilient means 9, can share the resilience force of the required production of first resilient means 8, ensure that 2 buckles of pot cover feel good. In other embodiments, the elastic means may also comprise third elastic means acting on the fork 4 and even fourth elastic means acting on the rotation knob 6. Because the shifting fork piece, the rotating handle, the rotating transmission piece, the movable clamping piece and the like are all linked with the locking cover, after the pot cover 2 is opened, the elastic device is arranged to drive the locking cover 21 to rotate under the action of the elastic device.

In this embodiment, the lock cover 21 is provided with a lock cover column 21, the lining 22 is provided with an avoiding groove, the avoiding groove comprises a first avoiding groove 221 and a second avoiding groove 222, and the release member 212 passes through the first avoiding groove 221 and extends to the upper surface of the lining 22, so as to act on the movable clamping member 3. Be equipped with through-hole 41 on the declutch shift 4, after lock lid post 21 passed second dodge groove 222, passed again through-hole 41 for declutch shift 4 can with the lock lid linkage. The first avoidance groove 221 is closer to the center of the lock cover 21, the distance from the center of the lock cover 21 is 1/5-4/5 of the radius of the lock cover, namely the distance from the center of the lock cover to the center of the release piece is 1/5-4/5 of the radius of the lock cover, the acting stroke of the release piece 212 can be reduced in the interval, the release acting stroke can be matched with the release stroke of the movable clamping piece 3, the strength of the lining 22 can be further guaranteed not to be greatly weakened, the avoidance groove is prevented from being arranged too close to the edge to influence the strength of the lining, and the service life of the lining is further influenced. Since the movable catch 2 is located at the edge of the locking cover 21, the release member 212 should normally be located at the edge of the locking cover 21 to match with the movable catch 3. However, on the premise that the unlocking rotation angle is constant, when the distance between the unlocking piece 212 and the center of the locking cover 21 is greater than 4/5 of the radius of the locking cover, the action stroke of the unlocking piece 212 is too large and is not matched with the tripping stroke of the movable clamping piece 3, so that the tripping action stroke of the movable clamping piece 3 is far greater than the required stroke of the movable clamping piece 11, and a part of the stroke of the unlocking piece 212 is useless. When the distance between the release member 212 and the center of the locking cover 21 is less than 1/5 of the radius of the locking cover 21, the action stroke of the release member 212 is too small, so that the release action stroke of the movable clip member 3 is far less than the required stroke for releasing the movable clip member 11. In this embodiment, the radius of the locking cap 21 is about 13 cm, and the release member 212 is located 6 cm from the center of the locking cap 21. Because the rotation angle of the locking cover 21 is fixed, the rotation stroke (arc length) of the unlocking member 212 is the rotation angle of the locking cover 21 multiplied by the distance between the unlocking member 212 and the locking cover center, on the premise that the rotation angle is constant, when the unlocking member 212 is close to the locking cover 21 center, the rotation stroke of the unlocking member 212 will be smaller, and in order to ensure that the rotation stroke of the unlocking member 212 is moderate, the distance between the unlocking member 212 and the locking cover 21 center is preferably 6 cm. Because the release part 212 has a certain distance with the movable clamping part 3, the rotating transmission part 5 is arranged between the release part and the movable clamping part, and the acting distance of the movable clamping part 3 can be adjusted by adjusting the rotating center of the rotating transmission part 5 to match with the releasing stroke of the movable clamping part 3.

Preferably, the avoiding grooves of the present embodiment are all arc-shaped avoiding grooves, and the corresponding angle of the arc-shaped avoiding grooves is 25 to 35 degrees. Because the angle that the locking closure 21 rotated in the lid process of opening and shutting is about 30, corresponding locking closure post 211 and release piece 212 are owing to extend to inside lining 22 upper surface, and its orbit also forms an arc about 30 and dodges the groove, so, the best, dodge the groove and also dodge the groove for the arc about 30, can avoid inside lining 22 to set up and dodge the intensity behind the groove and weaken too much like this.

In this embodiment, the locking cover 21 is a steel cover, the pot body 1 includes an inner container 12, and the locking cover 21 and the inner container 12 are sealed to form a cooking cavity. The pot body 1 also comprises a heat preservation cover for accommodating the inner container, the pot teeth are arranged on the heat preservation cover, and the cover teeth are arranged on the steel cover. It can be understood that a sealing ring is arranged between the inner container and the steel cover. Be equipped with a plurality of first grooves 221 of dodging on inside lining 22, be equipped with corresponding string post of hanging on the steel lid, pass through first groove 221 of dodging through hanging the post and make the steel lid hoist and mount on inside lining 22. In other embodiments, a rotating disc may be provided at the center of the lining, and the steel cover may be fixed by the rotating disc, and only one locking cover column 211 linked with the shifting fork 4 is provided on the steel cover.

In this embodiment, referring to fig. 2 and 7, a connecting member 213 is fixed on the steel cover 21, and a fastening member 212 is disposed on the connecting member 213. The connecting piece 213 is welded on the steel cover 21, the connecting piece 213 is provided with a mounting hole, and the release member 212 is fixed in the mounting hole. Further, the release member 212 is screw-fixed in the mounting hole. Since the release member 212 needs to extend to the upper surface of the liner 22, in order to avoid the first avoiding groove formed in the liner 22 from being too large, it is preferable that the release member 212 is cylindrical. Because the fastener 212 that breaks needs to be used for realizing the unbuckled uncapping with activity fastener 3, its installation accuracy requires highly, if the deviation appears in the mounted position of the fastener 212 that breaks, perhaps the slope appears in the installation, can cause the influence to the unbuckled uncapping, in this embodiment, through welding connecting piece 213 earlier on steel cover 21, connecting piece 213 has the face of weld of contacting with steel cover 21, can ensure that the position of connecting piece 213 is accurate, be equipped with the mounting hole on it, realize the accurate installation to the fastener 212 through with the fastener spiro union to the mounting hole. In other embodiments, the steel cover 21 may be provided with a mounting hole, the connecting member may be annular and also have a mounting hole, and the release member may be mounted after the connecting member is mounted corresponding to the mounting hole of the steel cover.

the specific working principle is as follows: in an initial cover closing and locking state, as shown in fig. 3, cover teeth of the cover 2 are engaged with pot teeth of the pot body 1, and the cover 2 is buckled with the pot body 1 through a buckle piece. The closed cover locking state can perform pressure cooking work. When the cooker cover 2 needs to be opened, the rotating handle 6 is rotated, the rotating handle 6 drives the shifting fork piece 4 to rotate, and the shifting fork piece 4 drives the locking cover 21 to rotate. When the shifting fork piece 4 drives the locking cover 21 to rotate to the first set position, as shown in fig. 4, the cover teeth and the pot teeth are just staggered, the locking cover 21 is in an unlocking state, because the release member 212 acts on the rotary transmission member 5, and finally the movable clamping member 3 is completely separated into a section, at this time, the releasing member 212 may be about to act on the rotating transmission member 5 (not yet acting on the movable clip member 3, as in the case of the state shown in fig. 4), may already have a certain action on the rotating transmission member 5 (acting for a certain period, but not completely disengaging the movable clip member 3), or may already have a complete action on the rotating transmission member 5 (completely disengaging the movable clip member 3, that is, completely disengaging the movable clip member 3 before the first setting position, in this case, the lid can be opened by continuing to rotate the locking lid to the first setting position). When the locking cover 21 continues to unlock and rotate, as shown in fig. 5, the cover teeth and the pot teeth are still staggered, the locking cover 21 is still in an unlocked state, and in the process, the unlocking piece 212 triggers the rotating transmission piece 5, the rotating transmission piece 5 triggers the movable clamping piece 3, the movable clamping piece 3 is separated from the fastening piece 11 on the pot body 1, and the pot cover 2 bounces open to be separated from the pot body 1. While the rotary actuator 5 is activated, both the first elastic means 8 and the second elastic means 9 are deformed. In the process of opening the cover, because the acting force is applied to the rotating handle 6, the rotating handle 6 drives the shifting fork piece 4 to drive the locking cover 21 to reach the unlocking opening position, the unlocking piece 212 on the locking cover 21 also triggers the movable clamping piece 3 through the rotating transmission piece 5 to separate the pot cover 2 from the pot body 1, after the pot cover 2 is separated from the pot body 1, the external acting force on the rotating handle 6 disappears, after the acting force on the rotating handle 6 disappears, the shifting fork piece 4 no longer receives the acting force of the rotating handle 6, the locking cover 21 no longer receives the acting force, so the first elastic device 8 and the second elastic device 9 both restore the deformation, the transmission piece returns, namely the rotating transmission piece 5 rotates, the rotating transmission piece 5 drives the unlocking piece 212 to further rotate the locking cover 21, as shown in fig. 6. While the locking cover 21 rotates, the movable clamping piece 3 also returns to the initial state, namely, the position which can act with the clamping piece 11 on the pot body 1. When the cooker cover 2 needs to be closed again, the cooker cover 2 is buckled, the movable clamping piece 3 is meshed with the buckling piece 11 on the cooker body 1 to enable the cooker cover 2 to be buckled, then the rotating handle 6 is rotated to realize the locking of the cover teeth and the cooker teeth, and the original cover closing and locking state is returned. The cover opening process can also be seen, the electric pressure cooker of the embodiment realizes the process of opening the cover only through one rotation action, the operation is simple, and the cover opening is convenient.

The movable catch 3 of the present embodiment is located on the upper surface of the liner 22 and at the edge of the locking cap 21, i.e. the distance between the movable catch 3 and the center of the locking cap 21 is about the radius of the locking cap 21, and the distance between the movable catch 3 and the radius of the locking cap 21 is plus or minus 20% of the radius of the locking cap 21, which can be understood as the edge of the locking cap 21. Because the locking cover 21 is located below the liner 22, the embodiment creatively provides an avoiding groove on the liner 22, and the unlocking member 212 is disposed on the locking cover 21, passes through the avoiding groove and extends to the upper surface of the liner 22 to be linked with the movable clamping member 3, so as to achieve the purpose of opening the cover by rotating the locking cover 21 to act on the movable clamping member 3. By adjusting the position of the avoiding groove, the acting distance of the tripping piece 212 acting on the movable clamping piece 3 can be adjusted. The present embodiment matches the trip travel of the movable catch 3 by providing an escape groove in the middle region of the liner 22 and a transmission between the trip member 212 and the movable catch 3. In addition, in the actual manufacturing process, the cover opening is accurately released by adjusting the transmission piece according to the deviation in the cover opening releasing process, so that the rotation angle is matched with the opening releasing stroke, and the adjusting mode is simple and feasible due to the structure.

The unlocking piece is arranged on the lock cover, and the movable clamping piece is triggered by the unlocking piece to open the lock cover in the rotating process of the lock cover. Because the unblock of locking closure must need rotatory, makes the activity fastener uncap with the help of the rotation of locking closure, need not set up in addition rotary part on other parts of pot cover and act on the activity fastener, simple structure practices thrift the cost. Because the movable clamping piece needs to return to ensure the next fastening after the pot cover is opened, and the rotation of the locking cover can realize the unlocking and locking with the pot body, generally speaking, after the pot cover is opened, in order to ensure the pot cover can be fastened again, the movable clamping piece needs to return, if the locking cover rotates, the cover teeth on the locking cover and the pot teeth on the pot body can collide with each other, so the locking cover cannot rotate, and generally, the movable clamping piece can not be acted by directly arranging the unlocking piece on the locking cover. And because the locking cover is positioned below the lining, the movable clamping piece is arranged on the lining, and the rotation of the locking cover can not act on the movable clamping piece. The tripping piece extends to the upper surface of the lining and then acts with the movable clamping piece, horizontal acting force is applied to the transmission piece in the rotating and unlocking process, the transmission piece returns and applies force to the tripping piece after the cover is opened, so that the acting force between the transmission piece and the tripping piece is free from friction and other losses, the force transmission efficiency is high, and the locking cover can be ensured to rotate. After the movable clamping piece is separated from the fastener, in order to ensure that the movable clamping piece can be buckled with the fastener when the cover is closed next time, the movable clamping piece needs to return, because the action of the movable clamping piece is realized by the action of rotating the unlocking piece by the locking cover, the return of the movable clamping piece can react with the unlocking piece to enable the locking cover to rotate, if friction loss exists in the process, the locking cover cannot rotate, so that the movable clamping piece cannot return, the transmission piece and the unlocking piece in the invention are horizontal acting force mutually, the transmission efficiency of the acting force between the transmission piece and the unlocking piece is high, and because the acting force needed by the rotation of the locking cover is large, the acting force loss is small, the locking cover can be ensured to rotate, so the movable clamping piece can return, and the pot cover can be buckled after the cover is opened.

Example two

The difference between the first embodiment and the second embodiment is mainly the structure of the release member 212 on the locking cover 21. In this embodiment, as shown in fig. 8-10, the release 212 is provided on the locking cap post 211. Specifically, the lock cover column 211 extends to the upper surface of the liner 22 after passing through the second avoiding groove 222 on the liner 22, the fork 4 is provided with a through hole 41, and the lock cover column 211 passes through the through hole 41 of the fork 4. The rotation of the fork element 4 can thus bring about the rotation of the locking cap 21. And a threaded hole is arranged on the lock cover column 211, the lock cover column 211 passes through the through hole 41 of the shifting fork piece 4 and then is fixed with a screw, and the fastening piece 212 is fixed between the nut and the shifting fork piece 4. The release member 212 is provided with a through hole, and the screw is fixed to the lock cover post 211 after passing through the through hole of the release member 212, so that the release member 212 is clamped between the lower surface of the nut and the upper surface of the fork 4. The nut here can also be understood as a screw washer for clamping the release member 212. The release member 212 has a certain horizontal extension for acting on the movable clip member 3. In this embodiment, a transmission member is also provided between the trip member 212 and the movable clamping member 3, and the transmission member in this embodiment is also a rotary transmission member 5. The transmission medium of this embodiment is equipped with the perforation in the middle of, is equipped with the fixed column on the inside lining 22, and the fixed column passes the perforation, restricts the movement track of rotating transmission medium 5 through the fixed column and the fenestrate shape cooperation. The release member 212 of the present embodiment is disposed on the steel cover 21, and extends to the upper surface of the lining 22 through the second avoiding groove 222, and the first avoiding groove 221 is not required to be disposed for the release member 212 to pass through as in the embodiment, so that the structure of the lining 22 can be simplified. And only set up on the lock cover post 211 and release the fastener 212, reach the purpose of opening the buckle through the rotation of steel lid 21, simple structure, low cost.

EXAMPLE III

The difference with embodiment one lies in, in this embodiment, the locking closure is the locking washer, and the pot body includes the inner bag, and the pot lid still includes the inner cup, and the inner cup forms the culinary art cavity with the inner bag is sealed, is equipped with the sealing washer between inner cup and the inner bag. The cooker teeth are arranged on the inner container, and the cover teeth are arranged on the lock ring.

Example four

The difference between this embodiment and the first embodiment is that, in this embodiment, there is no transmission member in the first embodiment, and the release member on the lock cover directly triggers the movable clamping member. Specifically, the position of the release member can be arranged close to the movable clamping member, or the release member is provided with a bending part which extends to the movable clamping member to realize the direct action of the release member. Because the release fastener directly touches the movable clamping piece, the touch acting force is more direct, the intermediate links are reduced, and the accessories of the transmission piece are also reduced.

EXAMPLE five

The difference between the first embodiment and the second embodiment is the specific structure of the transmission member. The transmission member in the first embodiment is a rotary transmission member, i.e., the transmission is realized by rotation. In this embodiment, the transmission member is a movable transmission member, that is, the transmission is realized by moving. Specifically, the movable transmission part is movably arranged on the lining, one end of the movable transmission part is acted with the touch part, and the other end of the movable transmission part is acted with the movable clamping part. The tripping piece is provided with an inclined surface structure, and when the tripping piece acts on the movable transmission piece, the movable transmission piece can move longitudinally through the inclined surface structure, so that the movable clamping piece is pushed, and the movable clamping piece is separated from the clamping piece to open the cover. Of course, one end of the movable transmission member may have an inclined surface structure, or both of them may have inclined surface structures, so that the movable transmission member may move longitudinally when the action of the releasing member and the movable transmission member is performed, thereby achieving the purpose of pushing the movable clamping member.

EXAMPLE six

The difference between the present embodiment and the first embodiment is the specific structure of the opening cover assembly. According to the motion mode difference of subassembly of uncapping, the subassembly of uncapping also can rotate the subassembly of uncapping or remove the subassembly of uncapping, embodiment one is to rotate the subassembly of uncapping, and the rotation of locking closure is realized through the rotation action of subassembly of uncapping, and in this embodiment, the subassembly of uncapping is for removing the subassembly of uncapping, and the rotation of locking closure is realized through the action of removing to the subassembly of uncapping promptly, and then realizes breaking away from of movable fastener. The uncovering component can also be a manual uncovering component or an electric uncovering component according to different stressed sources of the uncovering component. The action of opening the cover assembly by manual action is to manually open the cover assembly, as described in the first embodiment. In other embodiments, the action of the lid opening assembly may be achieved through an electric action. The electric cover opening assembly is provided with a motor, and can rotate the cover opening assembly through the driving of a gear or can move the cover opening assembly through a push rod.

EXAMPLE seven

The present embodiment is different from the first embodiment in that the door opening assembly is provided on the lock cover. Because the locking cover is positioned below the lining, an avoiding space can be arranged at the corresponding position of the lining, and the cover opening assembly can be fixed on the locking cover.

It will be appreciated that the above-described embodiments of the invention may be combined with each other to obtain further embodiments, without conflict.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Claims (10)

1. An electric pressure cooker convenient for opening a cover comprises a cooker body, a cooker cover and a buckle part, wherein the cooker cover comprises an inner lining and a locking cover positioned below the inner lining, the buckle part comprises a movable clamping piece arranged on the inner lining and a fastening piece positioned on the cooker body, the cooker cover is buckled with the cooker body through the buckle part, an opening cover component is arranged on the inner lining, the opening cover component drives the locking cover to rotate, the locking cover rotates to realize locking and unlocking of the locking cover and the cooker body, the electric pressure cooker is characterized in that an unlocking piece is arranged on the locking cover, the distance between the unlocking piece and the center of the locking cover is 1/5-4/5 of the radius of the locking cover, an avoiding groove is arranged on the inner lining and comprises a first avoiding groove and a second avoiding groove, the unlocking piece penetrates through the first avoiding groove to extend to the upper surface of the inner lining, the opening cover component drives the locking cover to unlock and rotate, the unlocking piece acts on the, the locking closure post passes the second and dodges the groove, and the groove is dodged to the second and is close to the locking closure center more in the first groove of dodging.

2. The electric pressure cooker with an easily opened lid as claimed in claim 1, wherein a driving member is provided on the upper surface of the inner liner, one end of the driving member is connected to the trip member, and the other end is connected to the movable engaging member, and when the locking lid is unlocked and rotated, the trip member activates the driving member, the driving member activates the movable engaging member, and the movable engaging member is separated from the engaging member to open the lid.

3. The electric pressure cooker with the cover opened conveniently as claimed in claim 2, wherein the transmission member is a rotary transmission member, the inner liner is provided with a positioning column, the rotary transmission member is fixed on the upper surface of the inner liner through the positioning column, and the rotary transmission member rotates around the positioning column to be linked with the movable clamping member.

4. An electric pressure cooker with a convenient cover as claimed in claim 2, wherein the movable catch is located at the edge of the locking cover.

5. an electric pressure cooker with a convenient cover as claimed in claim 2, wherein the end of the driving member connected to the movable catch is provided with a guide slope, and the driving member acts on the movable catch through the guide slope.

6. An electric pressure cooker with a convenient cover as claimed in claim 1, wherein the cover is provided with an elastic means for driving the locking cover to rotate, and after the cover is opened, the elastic means drives the locking cover to rotate.

7. An electric pressure cooker with a convenient cover opening as claimed in claim 6, wherein the elastic means comprises a first elastic means acting on the movable clamping piece, when the locking cover is unlocked and rotated, the first elastic means is deformed while the movable clamping piece is acted, and the movable clamping piece and the fastener are separated to open the cover; when the pot cover is opened, the first elastic device recovers to deform to drive the movable clamping piece to return, and the movable clamping piece returns to act on the locking cover to rotate.

8. the electric pressure cooker with the cover convenient to open as claimed in claim 2, wherein the cover is provided with a second elastic device acting on the transmission member, when the locking cover is unlocked and rotated, the second elastic device deforms when the release member triggers the transmission member, the transmission member triggers the movable clamping member, and the movable clamping member and the fastener are separated to open the cover; when the pot cover is opened, the second elastic device recovers to deform to drive the transmission piece to rotate.

9. An electric pressure cooker with a cover convenient to open as claimed in any one of claims 1-8, wherein the cover opening assembly is a rotary cover opening assembly or a movable cover opening assembly.

10. The electric pressure cooker with the cover being opened conveniently as claimed in one of claims 1 to 8, wherein the electric pressure cooker further comprises a torsion spring, one end of the torsion spring is fixed on the cooker body, the other end of the torsion spring is fixed on the cooker cover, and when the movable clamping piece is separated from the fastener, the torsion spring enables the cooker cover to be opened.