Electric pressure cooker with cover being conveniently opened

[0036] Example one

[0037] The present invention provides an electric pressure cooker with convenient lid opening, please refer to Figure 1-Figure 7 , Including a pot body 1, a pot cover 2 and a fastener, the fastener includes a movable fastener 3 provided on the pot cover 2 and a fastener 11 located on the pot body 1, the pot cover 2 and The pot body 1 is buckled, and the pot cover 2 includes an inner lining 22 and a lock cover 21 located below the inner lining 22. The lock cover 21 rotates to realize the locking and unlocking of the lock cover 21 and the pot body 1, and the cover 2 It is provided with a lid opening component, which drives the lock lid 21 to rotate, and the lock lid 21 is provided with an unfastening member 212. When the lid opening component drives the lock lid 21 to rotate to the first set position, the lock lid 21 and the pot 1 are unlocked When the lid opening assembly drives the lock lid 21 to continue to rotate to the second setting position, the tripping member 212 acts as the movable clamping member 3, and the movable clamping member 3 is separated from the buckle 11 to open the pot cover 2.

[0038] In this embodiment, the lid opening component is a rotating lid opening component, that is, the rotation of the rotating lid opening component drives the lock cover to rotate. The rotating lid opening component of this embodiment is provided on the inner liner 22, which includes a rotating handle 6 and For the fork member 4, the user manually operates the rotating handle 6, which drives the fork member 4 to rotate, and the fork member 4 drives the lock cover 21 to rotate to realize the locking and unlocking of the lock cover 21 and the pot body 1. Specifically, the lock lid 21 is provided with lid teeth, and the pot body 1 is provided with pot teeth. The lock lid 21 is locked and unlocked with the pot body 1 through the cooperation of the pot teeth and the lid teeth. The lock lid 21 is rotated to In the first set position, the lock cover 21 and the pot body 1 are unlocked. At this time, the pot teeth and the cover teeth have just staggered, and when the lock cover 21 continues to rotate to the second set position, the release member 212 acts as the movable clamping member 3. The movable clip 3 is separated from the fastener 11 so that the pot cover 2 is opened. When the lock cover is rotated to the second setting position, the pot teeth and the cover teeth are still in a staggered state, and in the process of rotating from the first setting position to the second setting position, the release member 212 also acts as a movable clamping member 3. When the rotation reaches the second set position, the movable clip 3 is also separated from the fastener 11 and the pot cover 2 is opened. By providing the first setting position and the second setting position, operations such as exhaust gas cooling can be performed at the first setting position, so as to avoid direct rotation to the second setting position to open the cover and burn consumers. Specifically, the electric pressure cooker further includes a torsion spring. One end of the torsion spring is fixed on the pot body 1 and the other end is fixed on the pot cover 2. When the movable clamp 3 is separated from the fastener 11, the torsion spring makes the pot cover 1 spring open. The unfastening member 212 can directly or indirectly touch the movable clamping member 3 to open the pot cover 2 so that the pot cover 2 can be opened in one rotation step, which is convenient for the user to use. It can be understood that the unlocking of the lock cover 21 and the pot body 1 refers to the position where the pot teeth and the cover teeth are staggered, and the locking of the lock lid 21 and the pot body 1 refers to the position where the pot teeth and the cover teeth occlude.

[0039] In this embodiment, the rotation angle of the lock cover 21 from the first setting position (the pot teeth and the cover teeth just staggered) to the second setting position (the movable buckle is separated from the fastener) is α, preferably, The angle α is 0-10°. When the angle is 0, it can be understood that the first set position coincides with the second set position, and when the angle is less than 0, it can be understood as the second set position first (that is, the movable buckle is separated first), and then To the first set position (that is, the pot teeth and the cover teeth have just staggered), and this negative angle will have the following problems: after the movable buckle 3 is separated, the pot cover 2 will have a tendency to bounce upwards. It has not been completely staggered with the cover teeth. At this time, the pot cover 2 has the force to spring upward, and the lock cover 21 needs to continue to rotate to make the pot teeth and the cover teeth stagger, which will increase the friction between the pot teeth and the cover teeth, and affect Turning feels, and when the lid is closed after opening the lid, there may be collisions between the pot teeth and the lid teeth, which affects the service life of the product. When the angle is greater than 10°, after unlocking, the lock cover 21 still needs to rotate a large angle to separate the movable buckles, and the cover teeth on the lock cover 21 are generally evenly distributed on the lock cover 21, which may cause The lid teeth bite into the next pot tooth, which affects the opening of the lid. Therefore, preferably, the angle α is 0-10°, specifically, it can be 0, 2°, 5°, 8°, 10°, etc.

[0040] In this embodiment, the inner liner 22 is provided with a transmission member. When the lock cover 21 is rotated to the second setting position, the tripping member 212 touches the transmission member, and the transmission member touches the movable clip 3, and the movable clip 3 It is separated from the fastener 11 to open the pot cover 2. Preferably, one end of the transmission member connected with the movable clamping member 3 is provided with a guiding inclined surface, and the transmission member acts on the movable clamping member 3 through the guiding inclined surface. Correspondingly, the movable clamping member 3 is also provided with a corresponding mating inclined surface, so that the transmission member Can smoothly affect the activity card 3. Specifically, in this embodiment, the transmission member is a rotation transmission member 5, the inner lining 22 is provided with a positioning post 7, and the rotation transmission member 5 is fixed on the inner lining 22 by the positioning post 7, and the rotation transmission is The member 5 rotates around the positioning column 7 to be linked with the movable clamping member 3. When the lock cover 21 is rotated from the first set position to the second set position, one end of the rotation transmission member 5 acts on the tripping member 212 on the lock cover 21, and the other end acts on the movable clamping member 3 to open the cover assembly When the lock cover 21 is driven to rotate to the second setting position, the movable clip 3 is separated from the fastener 11 to open the pot cover 2. The positioning column 7 can be a screw column on the inner lining 22, the rotation transmission member 5 is provided with a perforation, the screw column passes through the perforation, and then the screw is screwed to fix the rotation transmission member 5 on the inner lining 22, and the rotation transmission member 5 can surround The screw column rotates. In the present invention, a rotating transmission member 5 is arranged between the tripping member 212 and the movable clamping member 3 to realize transmission. The force is directly obvious, the intermediate loss force is small, the reliability is good, and the stability is high. Moreover, because the transmission part is provided, the setting positions of the unfastening part and the movable clamping part can be unlimited. It can also avoid deliberately setting the release member or the movable card member to be particularly long to connect the two.

[0041] In this embodiment, the rotating handle 6 is provided with a manipulation part 61, and the rotation of the rotating handle 6 is realized by the manipulation part 61. The pot cover 2 further includes a face cover 23, and the control portion 61 protrudes from the surface of the face cover 23. The user can manipulate the rotary handle 6 through the manipulation part 61 to realize the rotation of the rotary handle 6. The control part and the rotary handle 6 are integrally formed or formed separately. When the control part and the rotary handle 6 are integrally formed, the stability is better. When the two are formed separately, it is more convenient to manufacture the mold. The lid opening assembly of this embodiment is composed of a rotating handle 6 and a fork member 4, and the lid opening assembly may also be formed by integrally forming the two.

[0042] In this embodiment, the pot cover 2 is also provided with an elastic device that drives the lock cover 21 to rotate. After the pot cover 2 is opened, the angle at which the elastic device drives the lock cover 21 to rotate is β, and β is not greater than α. When the lock cover 21 is rotated to the first set position, the elastic device does not deform. When the lock cover 21 continues to rotate to the second set position, the elastic device deforms. After the pot cover 2 is opened, the elastic device returns to deformation. The lock cover 21 is driven to rotate. That is, when the lock cover 21 is rotated from the locked position to the first set position, it does not interact with the elastic device, and deforms the elastic device during the rotation from the first set position to the second set position. After the lid is opened, since the force of the lid opening assembly is released, the elastic device drives the lock lid 21 to rotate. Since the lock lid 21 is rotated to the first set position before it interacts with the elastic device, the elastic device recovers from deformation. The reaction lock cover makes its rotation angle β smaller than α. Because the unlocking member 212 of the present invention is provided on the lock cover 21, the movable clip can be unlocked by the rotation of the lock cover 21. After the movable clip is released, the lock cover 21 will be driven to rotate. This embodiment The rotation angle β of the lock cover is smaller than α, which can ensure that the teeth on the lock cover do not collide with the teeth on the pot body when the cover is closed again. Optimally, α is half of β, such as α is 6° and β is 3°, so that after the lock cover is rotated 3°, there is a margin of 3° before tooth bumps will occur to avoid errors in the manufacturing process. The situation of tooth bumps. Specifically, the elastic device includes a first elastic device 8 that functions as the movable clamping member 3. When the fork member 4 drives the lock cover 21 to rotate to the second setting position, the tripping member 212 triggers the rotation transmission member 5 to rotate, and the rotation transmission member 5 When the movable clip 3 is touched, the first elastic device 8 is deformed, and the movable clip 3 is separated from the fastener 11 to open the pot cover 2; when the pot cover 2 is opened, the first elastic device 8 resumes deformation drive The rotating transmission member 5 rotates. The rotation of the rotation transmission member 5 acts on the tripping member 212 to drive the lock cover 21 to rotate. The first elastic device 8 may be a spring or a torsion spring or the like. Since the first elastic device 8 is provided on the movable clip 3, the movable clip 3 can be ensured to return to the position after the cover is opened, and the next time the cover is closed and buckled, the rotation of the rotation transmission member 5 can be realized.

[0043] In this embodiment, the elastic device includes a second elastic device 9 that acts as the rotation transmission member 5. When the fork member 4 drives the lock cover 21 to rotate to the second setting position, the tripping member 212 triggers the rotation of the rotation transmission member 5 At the same time, the second elastic device 9 is deformed, the rotating transmission member 5 touches the movable clip 3, and the movable clip 3 is separated from the fastener 11 to open the pot cover 2; when the pot cover 2 is opened, the second elastic device 9 The restoration deformation drives the rotation transmission member 5 to rotate. The second elastic device 9 is a spring. One end of the spring is fixed to the rotation transmission member 5, and the other end is fixed to the inner liner 22. Because the inner lining 22 is always fixed, the rotation transmission member 5 can move relative to the inner lining 22. When the rotation transmission member 5 is touched by the tripping member 212 to move relative to the inner lining 22, the spring is deformed. The specific deformation can be compression or tension. When the pot cover 2 is opened and the force received by the tripping member 212 is released, the second elastic device 9 restores its deformation and drives the rotation transmission member 5 to rotate. The rotation of the rotation transmission member 5 also drives the tripping member 212 to rotate, thereby causing the lock cover 21 to rotate. Since the second elastic device 9 is also provided on the rotation transmission member 5, the rotation of the rotation transmission member 5 is further realized after the cover is opened. Since the rotation of the rotary transmission member 5 can be realized by the first elastic device 8, after the second elastic device 9 is provided, the first elastic device 8 can be assisted, and the two work together to realize the rotation of the transmission rotary member 5, thereby realizing the release member The rotation of 212 in turn causes the lock cover 21 to rotate. If only the first elastic device 8 realizes the rotation of the rotation transmission member 5, the first elastic device 8 needs to undergo a large deformation and produce a large resilience force, which will affect the hand feeling when the pot cover 2 is buckled. The second elastic device 9 can share the resilience required by the first elastic device 8 to ensure that the pot cover 2 has a good snapping feel. In other embodiments, the elastic device may further include a third elastic device that functions as the fork member 4, and even a fourth elastic device that functions as a rotating handle 6. Since the shifting fork, the rotating handle, the rotating transmission member, the movable clamping member, etc. are all linked with the lock cover, after the pot cover 2 is opened, the elastic device can drive the lock cover 21 to rotate.

[0044] In this embodiment, the lock cover 21 is provided with a lock cover post 21, and the inner lining 22 is provided with an escape groove. The escape groove includes a first escape groove 221 and a second escape groove 222, and the release member 212 passes through the An avoiding groove 221 extends to the upper surface of the inner liner 22 to interact with the movable card 3. The fork member 4 is provided with a through hole 41, and the lock cover column 21 passes through the second escape groove 222 and then passes through the through hole 41, so that the fork member 4 can be linked with the lock cover. The first avoiding groove 221 is closer to the center of the lock cover 21, and the distance from the center of the lock cover 21 is 3-9 cm, that is, the distance between the release member 212 and the center of the lock cover 21 is 3-9 cm. Preferably, the avoidance grooves are all arc avoidance grooves, and the corresponding angle of the arc avoidance grooves is 25°-35°. Since the lock cover 21 rotates at an angle of about 30° during the opening and closing process, the corresponding lock cover post 211 and the tripping member 212 extend to the upper surface of the inner liner 22, and their trajectory also forms an arc avoidance of about 30° Therefore, the best avoidance groove is also an arc avoidance groove of about 30°, which can prevent the lining 22 from weakening too much after the avoidance groove is provided. The distance d of the release member 212 from the center of the lock cover 21 is 3-9 cm in this embodiment, which can reduce the stroke of the release member 212 acting on the movable fastener. In other words, the distance between the unlocking member 212 and the center of the lock cover 21 is 1/5-4/5 of the radius of the lock cover 21. Specifically, the radius r of the lock cover 21 is about 13 cm, and the rotation angle of the lock cover 21 The rotation stroke (arc length) of the release member 212 is the rotation angle of the lock cover 21 multiplied by the distance between the release member 212 and the center of the lock cover. Under the premise of a constant rotation angle, when the release member 212 is close to the lock When the cover 21 is in the center, the rotation stroke of the release member 212 will be too small. In order to ensure that the rotation stroke of the release member 212 is moderate, the distance d between the release member 212 and the center of the lock cover 21 is preferably 3-9 cm. When d is less than 3 cm, the rotation stroke of the release member 212 is too small, and the action distance of the movable clip 3 is too short, making the movable clip 3 difficult to be affected and separated from the fastener 11. When d is greater than 9 cm , The rotation stroke of the release member 212 is too large, and the action distance of the movable clip 3 is too long, so that the movable clip 3 is affected by the release member 212 during a long stroke, and the movable clip 3 is separated from the fastener 11 The trip is limited, and its trip will not match the trip trip. Because there is a certain distance between the tripping member 212 and the movable clamping member 3, there is a rotation transmission member 5 between them. By adjusting the rotation center of the rotation transmission member 5, the action distance of the movable clamping member 3 can also be adjusted , To match the tripping stroke of the movable card 3.

[0045] In this embodiment, the lock cover 21 is a steel cover, and the pot 1 includes an inner container 12, and the lock cover 21 and the inner container 12 are sealed to form a cooking cavity. The pot body 1 also includes a heat preservation cover for accommodating the inner pot, the pot teeth are arranged on the heat preservation cover, and the cover teeth are arranged on the steel cover. It is understandable that a sealing ring is provided between the inner liner and the steel cover. The inner lining 22 is provided with a plurality of first avoiding grooves 221, and the steel cover is provided with corresponding hanging posts. The steel cover is hoisted on the inner lining 22 by passing the hanging columns through the first avoiding grooves 221. In other embodiments, a turntable may be provided in the center of the inner liner, and the turntable is used to fix the steel cover, and the steel cover is provided with only one lock cover post 211 linked with the shift fork 4.

[0046] In this embodiment, you can refer to figure 2 with Figure 7 A connecting piece 213 is fixed on the steel cover 21, and a tripping piece 212 is arranged on the connecting piece 213. The connecting piece 213 is welded to the steel cover 21, the connecting piece 213 is provided with a mounting hole, and the tripping piece 212 is fixed in the mounting hole. Further, the release member 212 is screwed and fixed in the mounting hole. Since the tripping member 212 needs to extend to the upper surface of the inner liner 22, in order to prevent the first avoiding groove opened on the inner lining 22 from being too large, the tripping member 212 is preferably cylindrical. Since the tripping piece 212 needs to interact with the movable clip 3 to unlock the lid, its installation accuracy is relatively high. If the installation position of the tripping piece 212 is deviated or the installation is inclined, it will affect the tripping and opening lid. In this embodiment, by first welding the connecting piece 213 on the steel cover 21, the connecting piece 213 has a welding surface in contact with the steel cover 21, which ensures that the position of the connecting piece 213 is accurate, and there is a mounting hole on it. The tripping piece is screwed to the mounting hole to achieve accurate installation of the tripping piece 212. In other embodiments, a mounting hole may also be provided on the steel cover 21, the connecting piece is ring-shaped and also has a mounting hole. After the connecting piece is installed corresponding to the mounting hole of the steel cover, the tripping piece is installed.

[0047] The specific working principle is as follows: the initial closed lid lock state, such as image 3 As shown, the lid teeth of the pot cover 2 are engaged with the pot teeth of the pot body 1, and the pot lid 2 is buckled with the pot body 1 through a snap. The closed lid and locked state can be used for pressure cooking. When the pot cover 2 needs to be opened, the rotating handle 6 is rotated, the rotating handle 6 drives the fork member 4 to rotate, and the fork member 4 drives the lock cover 21 to rotate. When the fork member 4 drives the lock cover 21 to rotate to the first setting position, such as Figure 4 As shown, the cover teeth and the pot teeth are staggered, the lock cover 21 is in an unlocked state, and the tripping member 212 is about to interact with the rotation transmission member 5 at this time. When the lock cover 21 continues to rotate to the second setting position, such as Figure 5 As shown, at this time, the cover teeth and the pot teeth are still staggered, and the lock cover 21 is still in an unlocked state. During this process, the tripping member 212 touches the rotation transmission member 5, and the rotation transmission member 5 touches the movable clamping member 3. The movable clamping member 3 is separated from the fastener 11 on the pot body 1, and the pot cover 2 pops open to separate from the pot body 1. While the rotation transmission member 5 is touched, both the first elastic device 8 and the second elastic device 9 are deformed. In the process of opening the cover, due to the force being applied to the rotating handle 6, the rotating handle 6 drives the fork member 4 to drive the lock cover 21 to the second set position, and the release member 212 on the lock cover 21 also passes through the rotation transmission member 5 Touch the movable clip 3 to separate the pot cover 2 from the pot body 1. When the pot cover 2 is separated from the pot body 1, the external force on the rotating handle 6 disappears. After the force of the rotating handle 6 disappears, the fork piece 4 is no longer subject to the force of the rotating handle 6, and the lock cover 21 is no longer subject to force, so the first elastic device 8 and the second elastic device 9 both resume deformation, so that the rotation transmission member 5 rotates, and the rotation transmission member 5 drives the solution. The fastener 212 in turn makes the lock cover 21 rotate, such as Image 6 Shown. When the lock cover 21 rotates, the movable clip 3 also returns to the initial state, that is, returns to a position capable of interacting with the fastener 11 on the pot 1. When you need to close the lid 2 again, buckle the lid 2, and the movable clip 3 bites the fastener 11 on the pot body 1 to make the lid 2 buckle, and then turn the rotary handle 6 to realize the locking of the lid and the pot. Then return to the initial closed lid locked state. It can also be seen from the above process of opening the lid that the electric pressure cooker of this embodiment realizes the process of opening the lid of the pot with only one rotating motion, which is simple to operate and convenient to open the lid.

[0048] Since the movable clip 3 is located at the edge of the upper surface of the inner lining 22, and the lock cover 21 is located under the inner lining 22, this embodiment creatively provides an escape groove on the inner lining 22, and the release member 212 is arranged on the lock cover 21. It extends through the avoiding groove and extends to the upper surface of the inner liner 22 to be linked with the movable clip 3 to achieve the purpose of turning the lock cover 21 to act on the movable clip 3 to open the cover. By adjusting the position of the avoidance slot, the distance of action of the release member 212 on the movable clamping member 3 can also be adjusted. In this embodiment, the avoidance groove is arranged in the middle area of ​​the inner liner 22, and a transmission part is arranged between the tripping member 212 and the movable clamping member 3 to match the tripping stroke of the movable clamping member 3. Moreover, in the actual manufacturing process, for the deviations in the opening and tripping process, precise opening and tripping can be achieved by adjusting the transmission part, so that the rotation angle matches the tripping stroke. This structure makes the adjustment method simple and feasible.

[0049] In the present invention, an unlocking piece is arranged on the lock cover, and the unlocking piece touches the movable clamping piece during the rotation of the lock cover to realize the opening. Since the unlocking of the lock cover inevitably needs to be rotated, the movable clip can be opened by the rotation of the lock cover, and there is no need to additionally provide a rotating part on other parts of the pot cover to function as the movable clip, the structure is simple and the cost is saved. Since the movable clip needs to be returned after the lid is opened to ensure the next buckle, and the rotation of the lock lid can be unlocked and locked with the pot body. Generally speaking, after the lid is opened, in order to ensure that it can be buckled again The lid and the movable clip need to be returned. If the lid is rotated, the lid teeth on the lock lid and the pot teeth on the pot body may collide, so the lock lid should not be able to rotate, so it is generally not on the lock lid. Set the unfastening piece directly to act as a movable card piece. Moreover, since the lock cover is located under the inner lining and the movable clip is provided on the inner lining, the rotation of the lock cover cannot affect the movable clip. However, the present invention is provided with an escape groove on the inner lining, and the release on the lock cover passes through The avoidance slot is provided, so the movable card can be used to open the cover. The tripping member of the present invention extends to the upper surface of the inner lining and acts on the movable clamping member. It applies a horizontal force to the transmission member during the rotation and unlocking process. After the cover is opened, the transmission member returns to apply force to the tripping member, so that There is no friction and other losses in the force between the two, and the force transmission efficiency is high. Because the rotation of the lock cover requires a large force, the force loss is small to ensure that the lock cover can rotate, so the movable card can return It is possible to close the lid after opening the lid.

[0050] Example two

[0051] The main difference between this embodiment and the first embodiment lies in the structure of the release member 212 on the lock cover 21. In this embodiment, as Figure 8-10 As shown, the tripping member 212 is provided on the lock cover post 211. Specifically, the lock cover column 211 extends to the upper surface of the inner liner 22 after passing through the second escape groove 222 on the inner liner 22, the fork member 4 is provided with a through hole 41, and the lock cover column 211 passes through the fork The through hole 41 of the piece 4 is provided. The rotation of the fork member 4 can therefore drive the lock cover 21 to rotate. The lock cover post 211 is provided with a threaded hole, the lock cover post 211 passes through the through hole 41 of the fork member 4 and is fixed with a screw, and the release member 212 is fixed between the nut and the fork member 4. The release member 212 is provided with a through hole, and the screw is fixed to the lock cover column 211 after passing through the through hole of the release member 212, so the release member 212 is clamped on 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, which is used to clamp the tripping member 212. The unfastening member 212 has a certain horizontal extension section for acting as the movable clip 3. In this embodiment, a transmission member is also provided between the tripping member 212 and the movable clamping member 3, and the transmission member in this embodiment is also a rotation transmission member 5. The transmission member of this embodiment is provided with a perforation in the middle, and a fixed post is provided on the lining 22, and the fixed post passes through the perforation. The shape of the fixed post and the perforation are matched to limit the movement track of the rotating transmission member 5 The release member 212 of this embodiment is provided on the steel cover 21 and extends to the upper surface of the inner liner 22 through the second avoidance groove 222. There is no need to provide the first escape groove 221 for the release member as in the first embodiment. Through 212, the structure of the inner liner 22 can be simplified. Moreover, only the tripping member 212 is provided on the lock cover post 211, and the purpose of opening the buckle is achieved through the rotation of the steel cover 21, which has a simple structure and low cost.

[0052] Example three

[0053] The difference from the first embodiment is that in this embodiment, the lock cover is a lock ring, the pot body includes an inner pot, and the pot lid also includes an inner lid. The inner lid and the inner pot are sealed to form a cooking cavity. A sealing ring is arranged between the cover and the inner liner. The pot teeth are arranged on the inner pot, and the cover teeth are arranged on the lock ring.