Electric pressure cooker with cover function

Abstract

This invention provides an electric pressure cooker with a lid-closing function, including a pot body and a lid. A support block is provided on the top of the rear wall of the pot body, and a drainage groove is provided on the top surface of the support block. A handle is provided on the top of the lid, with one end extending outwards from the side wall of the lid. A locking tongue is provided inside the protruding end of the handle, with its bottom extending outwards. The locking tongue is vertically moved by a pry mechanism, causing its bottom to retract inwards. A first button for adjusting the pry mechanism is located on the gripping part of the handle. An insertion hole adapted to the bottom of the locking tongue is provided at the bottom of the drainage groove. A lid-closing structure is installed at the support block, including a pusher that can move along the drainage groove. After starting a cooking program requiring complete lid closure, the lid-closing structure activates, causing the pusher to move and push in a preset direction. The lid is a detachable structure, allowing for easy disassembly and cleaning. It also features an automatic lid-closing action, preventing the lid from not closing properly and ensuring the normal operation of the electric pressure cooker.

Description

Technical Field

[0001] This invention relates to the field of electric pressure cookers, and more specifically, to an electric pressure cooker with a lid-closing function. Background Technology

[0002] In existing electric pressure cookers, there are two main ways to connect the lid to the pot body: one is that the lid is connected to the pot body, so the lid does not need to be removed from the pot body when opening; the other is that the lid is separate from the pot body. The former is inconvenient to clean because the lid cannot be removed.

[0003] While the latter solution addresses the issue of lid cleaning, it also presents other problems. The lid-closing operation, in particular, relies entirely on manual intervention. In actual use, oversights or improper operation are inevitable, but users often assume the lid is fully closed and, after pressing the start button, cease monitoring the electric pressure cooker's status, or even go out. Furthermore, most electric pressure cookers currently perform a lid-closing check after startup, based on the running program. If the lid is not fully closed, some programs requiring complete closure cannot continue. Users may not notice the alarm, and by the time they do, a significant amount of time may have been wasted, making it inconvenient for practical use and requiring improvement. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the technical problem to be solved by the present invention is to provide an electric pressure cooker with a lid closing function. The lid is a split structure that can be easily disassembled and cleaned. It can also automatically close the lid to prevent the lid from not closing properly and ensure the normal operation of the electric pressure cooker.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] This invention provides an electric pressure cooker with a lid-closing function, comprising a pot body and a lid. A support block is provided on the top of the rear wall of the pot body, and a drainage groove is provided on the top surface of the support block. A handle is provided on the top of the lid, with one end extending outwards from the side wall of the lid. A locking tongue is provided inside the protruding end of the handle, with its bottom extending outwards. The locking tongue is vertically moved by a pry mechanism, causing its bottom to retract inwards. A first button for adjusting the pry mechanism is located on the gripping part of the handle. An insertion hole is provided at the bottom of the drainage groove, the shape of which matches the shape of the bottom of the locking tongue. A lid-closing structure is installed at the support block, including a pusher that can move along the drainage groove. After starting a cooking program requiring complete lid closure, the lid-closing structure is activated, causing the pusher to move and push in a preset direction.

[0007] In a preferred embodiment of the present invention, the lid-closing structure includes a pusher and a motor; the outer wall of the support block is arc-shaped, and the inside of the support block has a clamping cavity with the bottom of the clamping cavity open; the motor is bolted to the top of the clamping cavity, with the output shaft facing downwards, and a gear is fixedly mounted on the output shaft of the motor; a first strip-shaped opening is provided on the wall of the drainage trough away from the center of the pot body, and a gap is left between the bottom surface of the first strip-shaped opening and the bottom of the drainage trough; a bracket is installed at the bottom of the clamping cavity, and a groove is provided on the top of the bracket to support the bottom of the pusher; the pusher includes an arc-shaped rack, with a vertical rod fixedly mounted on the top of one end of the rack, and a push rod fixedly mounted on one side of the top of the vertical rod; the push rod extends through the first strip-shaped opening into the interior of the drainage trough, the vertical rod slides against the outer wall of the support block, and the rack slides against the bottom of the groove; the rack meshes with the gear for transmission, and the motor drives the pusher to move.

[0008] In a preferred embodiment of the present invention, a stop bar is fixedly provided on the top edge of the bracket. The stop bar has an arc-shaped structure, and the wall of the rack away from the gear slides against the inner wall of the stop bar.

[0009] In a preferred embodiment of the present invention, the handle includes a frame fixedly mounted above the top surface of the pot lid, one end of which extends outward from the side wall of the pot lid, and the protruding end extends downward along the side wall of the pot lid to the bottom surface of the pot lid; the top surface of the frame is provided with a receiving cavity, and the receiving cavity has a recessed cavity at the position of the protruding end, and a protruding plate is fixedly mounted on one side of the top of the recessed cavity; a second guide hole is provided through the bottom of the recessed cavity, and a first guide hole is provided through the protruding plate corresponding to the second guide hole, both the first guide hole and the second guide hole being prismatic hole structures; the latch includes a guide rod, a stop rod fixedly mounted at the bottom end of the guide rod, and a support plate fixedly mounted at the top end of the guide rod; the shape of the guide rod corresponds to the first guide hole and the second guide hole. The shape is adapted, and the guide rod is movably inserted through the first guide hole and the second guide hole; the support plate is provided with a third guide hole penetrating through both side walls. The third guide hole is an inclined strip hole, and the end of the third guide hole away from the guide strip is inclined downward; the side wall of the receiving cavity away from the recess is provided with a first through hole, and the first button is movably installed at the first through hole; the top pry structure includes a pusher, which is rotatably installed in the receiving cavity. One end of the pusher is rotatably installed with a bushing, which passes through the third guide hole; the other end of the pusher extends to one side of the first button; by pressing the first button, the pusher swings, driving the locking tongue to move upward, so that the stop bar retracts into the recess.

[0010] In a preferred embodiment of the present invention, the pushing component includes a swing rod, one end of which is fixedly provided with a support bar, and the end of the support bar is fixedly provided with a column bar, and a bushing is rotatably sleeved on the column bar; a first protrusion is fixedly provided on the swing rod, the top surface of the first protrusion is provided with a first groove, and the bottom of the first groove is provided with a first circular hole; a protruding post is fixedly provided at the bottom of the receiving cavity, the diameter of the protruding post being adapted to the diameter of the first circular hole, and the swing rod is rotatably mounted on the protruding post; a first torsion spring is installed at the first groove; a cover plate is installed at the top of the receiving cavity, the bottom surface of the cover plate is correspondingly provided with a second protrusion, the bottom surface of the second protrusion is provided with a second groove, and the upper end of the first torsion spring is engaged in the second groove; the first torsion spring provides a restoring elastic force for the pushing component.

[0011] In a preferred embodiment of the present invention, the exhaust valve on the pot lid is located on one side of the bottom of the frame; the venting mechanism for opening the exhaust valve is installed at the handle, and the venting mechanism is adjusted and locked to keep the exhaust valve in a venting state; the top pry structure is used to unlock the venting mechanism and reset the venting mechanism and the exhaust valve.

[0012] In a preferred embodiment of the present invention, the end of the frame near the locking tongue is thickened, and the accommodating cavity at this position is recessed; the venting mechanism includes a rocker, a second button, a spring, and a lock; the rocker is rotatably mounted on the top surface of the pot lid, located below the frame; one end of the rocker is engaged with the bottom of the valve head of the vent valve, and the other end is tilted upwards towards the bottom surface of the frame, with the end position tilted downwards; the accommodating cavity has a third through hole corresponding to the tilted end of the rocker, and the side wall of the accommodating cavity has a second through hole corresponding to it; the second button is mounted at the second through hole, and a pressure block is fixedly provided on the bottom surface of the second button; the bottom surface of the pressure block has a first inclined surface corresponding to the tilted end of the rocker; when the second button is pressed inwards, the pressure block can exert a downward pushing force on the rocker; the inner wall of the third through hole has a countersunk hole, and the spring is located in the countersunk hole to provide the spring force for the pressure block to return to its original position; the lock is located above the second button, and when the second button is moved into position, the lock locks the second button; the lock is located within the movement trajectory of the pusher, and the lock is unlocked by the swinging pusher.

[0013] In a preferred embodiment of the present invention, the locking element includes a pressure plate, which is positioned above the second button. The end of the pressure plate away from the pusher is rotatably mounted on the inner wall of the accommodating cavity. A second torsion spring is installed at the rotation axis to provide a downward pressing force for the pressure plate. A first helical tooth is fixedly provided on the bottom surface of the pressure plate. A second helical tooth is fixedly provided on the top surface of the second button. When the second button is pressed inward, the second helical tooth moves to the opposite side of the first helical tooth, blocking the reset of the second button through the first helical tooth, thus forming a lock. The end of the pressure plate away from the second torsion spring curves upward in an arc shape, corresponding to the position of the frame bar, and its top end is higher than the top of the frame bar. The frame bar has a cylindrical strip structure. When the frame bar swings towards the pressure plate, it can push the pressure plate upward, causing the first helical tooth to disengage from the second helical tooth portion, thus releasing the lock.

[0014] The beneficial effects of this invention are as follows:

[0015] This invention provides an electric pressure cooker with a lid-closing function, comprising a pot body and a lid. A support block is provided on the top of the rear wall of the pot body, and a drainage groove is provided on the top surface of the support block. A handle is provided on the top of the lid, with one end extending outwards from the side wall of the lid. A locking tongue is provided inside the protruding end of the handle, with its bottom extending outwards. The locking tongue is vertically moved by a top-pry structure, causing its bottom to retract inwards. An insertion hole is provided at the bottom of the drainage groove, the shape of which matches the shape of the bottom of the locking tongue. The lid and pot body are separate components, allowing for easy removal and cleaning. A first button for adjusting the top-pry structure is located on the gripping part of the handle, facilitating unlocking when gripping the handle and enabling easy opening and closing of the lid.

[0016] The support block is equipped with a lid-closing structure, which includes a pusher that can move along the drain groove. The pusher can push the locking tongue that extends into the drain groove. Regardless of whether the lid is fully closed, a pushing action is performed after starting the cooking program that requires the lid to be fully closed, ensuring that the lid can be fully closed in the end, thus ensuring the normal operation of the electric pressure cooker. Attached Figure Description

[0017] Figure 1 This is a first-view perspective three-dimensional structural diagram of an electric pressure cooker with a lid-closing function in a specific embodiment of the present invention;

[0018] Figure 2 This is a second-view perspective three-dimensional structural diagram of an electric pressure cooker with a lid-closing function in a specific embodiment of the present invention;

[0019] Figure 3 This is a three-dimensional unfolded structural diagram of an electric pressure cooker with a lid-closing function in a specific embodiment of the present invention;

[0020] Figure 4 This is a three-dimensional unfolded structural diagram of the pot body from a first-view perspective in a specific embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the three-dimensional unfolded structure of the pot body from a second perspective in a specific embodiment of the present invention;

[0022] Figure 6 This is a side view of the pot lid in a specific embodiment of the present invention;

[0023] Figure 7 This is a schematic diagram of the internal structure of the handle in a specific embodiment of the present invention;

[0024] Figure 8 This is a three-dimensional unfolded structural diagram of the pot lid from a first-view perspective in a specific embodiment of the present invention;

[0025] Figure 9This is a schematic diagram of the three-dimensional unfolded structure of the pot lid from a second perspective in a specific embodiment of the present invention;

[0026] Figure 10 This is a three-dimensional structural diagram of the pot lid in a specific embodiment of the present invention;

[0027] Figure 11 This is a three-dimensional structural diagram of the locking tongue in a specific embodiment of the present invention;

[0028] Figure 12 This is a three-dimensional structural diagram of the pusher component in a specific embodiment of the present invention;

[0029] Figure 13 This is a three-dimensional structural diagram of the second button in a specific embodiment of the present invention;

[0030] Figure 14 This is a three-dimensional structural diagram of the pressure plate in a specific embodiment of the present invention.

[0031] In the picture:

[0032] 100. Pot body; 110. Support block; 120. Drainage groove; 130. Insertion hole; 140. Clamping cavity; 150. First strip opening; 160. Bracket; 170. Support groove; 180. Stop bar;

[0033] 200. Pot lid; 210. Handle; 211. Frame; 212. Receiving cavity; 213. Concave cavity; 214. Protruding plate; 215. Second guide hole; 216. First guide hole; 217. First through hole; 218. Protruding post; 221. Third through hole; 222. Second through hole; 223. Countersunk hole; 230. Cover plate; 240. Exhaust valve;

[0034] 300, Locking tongue; 310, Guide rod; 320, Stop bar; 330, Support plate; 340, Third guide hole;

[0035] 400. Top pry structure; 410. First button; 420. Pushing component; 421. Swing rod; 422. Frame bar; 423. Column bar; 424. First slot; 425. First round hole; 430. Bushing; 440. First torsion spring;

[0036] 500. Cover structure; 510. Push frame; 511. Rack; 512. Upright pole; 513. Push rod; 520. Motor; 530. Gear; 600. Air release mechanism; 610. Rocker; 620. Second button; 621. Pressure block; 622. Second helical gear; 630. Spring; 640. Lock; 641. Pressure plate; 642. Second torsion spring; 643. First helical gear. Detailed Implementation

[0037] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0038] like Figures 1 to 9 As shown in the figure, a specific embodiment of the present invention discloses an electric pressure cooker with a lid-closing function, including a pot body 100 and a lid 200. A support block 110 is provided on the top of the rear wall of the pot body 100, and a drainage groove 120 is provided on the top surface of the support block 110. A handle 210 is provided on the top of the lid 200, one end of which extends out of the side wall of the lid. A locking tongue 300 is provided inside the protruding end of the handle 210, and the bottom of the locking tongue 300 extends outward. The locking tongue 300 is driven by a top pry structure 400. Vertical movement retracts the bottom of the latch into the interior; the first button 410 for adjusting the top pry structure 400 is located on the gripping part of the handle 210; the bottom of the drain trough 120 is provided with an insertion hole 130, the shape of which is adapted to the bottom shape of the latch 300; a lid closing structure 500 is installed at the support block 110, the lid closing structure 500 includes a pusher 510 that can move along the drain trough; after starting a cooking program that requires complete lid closing, the lid closing structure is activated, causing the pusher to move and push in a preset direction.

[0039] The electric pressure cooker with a lid-closing function described above has a separate lid and a separate body structure, which makes it easy to remove the lid for cleaning; the first button for unlocking is located on the grip part of the handle, which makes it easy to unlock when gripping the handle, and facilitates the opening and closing of the lid.

[0040] The support block is equipped with a lid-closing structure, which includes a pusher that can move along the drain groove. The pusher can push the locking tongue that extends into the drain groove. Regardless of whether the lid is fully closed, a pushing action is performed after starting the cooking program that requires the lid to be fully closed, ensuring that the lid can be fully closed in the end, thus ensuring the normal operation of the electric pressure cooker.

[0041] Furthermore, such as Figure 4 , Figure 5As shown, the lid-closing structure 500 includes a pusher 510 and a motor 520; the outer wall of the support block 110 is an arc-shaped structure, and the inside of the support block 110 is provided with a clamping cavity 140, the bottom of which is open; the motor 520 is bolted to the top of the clamping cavity 140, with the output shaft facing downwards, and a gear 530 is fixedly installed on the output shaft of the motor 520; the drainage groove 120 has a first strip-shaped opening 150 on its groove wall away from the center of the pot body, and a gap is left between the bottom surface of the first strip-shaped opening and the bottom of the drainage groove; a bracket 160 is installed at the bottom of the clamping cavity 140, and a support groove 170 is provided on the top of the bracket 160 to support the bottom of the pusher; the clamping cavity provides a mounting position for the motor and gear, and the pusher is moved by the motor; the bracket can support the bottom of the pusher, keeping it in the required position to meet the transmission and pushing effects; on the other hand, it can fill the open opening of the clamping cavity, shielding and protecting the internal components, and maintaining the overall aesthetics;

[0042] The pusher 510 includes an arc-shaped rack 511, with a vertical rod 512 fixedly attached to the top of one end of the rack 511, and a push rod 513 fixedly attached to one side of the top of the vertical rod 512. The push rod 513 passes through the first strip-shaped opening 150 and extends into the interior of the drainage groove 120. The vertical rod 512 slides against the outer wall of the support block 110, and the rack 511 slides against the bottom of the support groove 170. The rack 511 meshes with the gear 530 for transmission, and the pusher 510 is moved by the motor 520. The overall structure is simple, and the pusher is moved in the required direction by the motor to achieve effective pushing. It should be noted that the bottom of the clamping cavity is provided with a channel communicating with the inner cavity of the bottom of the pot body for the laying of wiring.

[0043] Furthermore, the support block is provided with a drainage hole, which is located on the outer side of the end opposite to the closing action of the drainage trough. The bottom end of the drainage hole penetrates the bottom surface of the support block, and the top of the drainage hole is connected to the drainage trough. There is a gap between the drainage hole and the first strip opening, which can limit the drainage area, prevent liquid from being discharged from the first strip opening, and also prevent the push frame from coming into contact with accumulated water and becoming dirty.

[0044] Furthermore, a stop bar 180 is fixedly provided on the top edge of the bracket 170. The stop bar has an arc-shaped structure. The wall of the rack 511 away from the gear slides against the inner wall of the stop bar 180, which can further restrict the pusher, so that the pusher can only move in the required direction and prevent the pusher from detaching from the mounting position.

[0045] Furthermore, such as Figures 7 to 11As shown, the handle 210 includes a frame 211 fixedly mounted above the top surface of the pot lid 200. One end of the frame extends outward from the side wall of the pot lid, and the protruding end extends downward along the side wall of the pot lid to the bottom surface of the pot lid. The top surface of the frame 211 is provided with a receiving cavity 212, and the receiving cavity 212 is provided with a recess 213 at the position of the protruding end. A protruding plate 214 is fixedly provided on one side of the top of the recess 213. A second guide hole 215 is provided through the bottom of the recess 213, and the protruding plate 214 is provided through a first guide hole 215 corresponding to the second guide hole 215. 6. Both the first guide hole and the second guide hole are prismatic hole structures; the latch 300 includes a guide rod 310, a stop rod 320 fixedly disposed at the bottom end of the guide rod 310, and a support plate 330 fixedly disposed at the top end of the guide rod 310; the shape of the guide rod is adapted to the shape of the first guide hole and the second guide hole, and the guide rod is movably disposed in the first guide hole and the second guide hole; it can effectively limit the latch to only move vertically, prevent it from rotating and deviating during the lifting and lowering process, and ensure that it maintains the required transmission cooperation with the top pry structure;

[0046] The support plate 330 is provided with a third guide hole 340 penetrating both side walls. The third guide hole is an inclined strip-shaped hole, with the end of the third guide hole away from the guide strip inclined downwards. The side wall of the accommodating cavity 212 away from the recessed cavity is provided with a first through hole 217, and the first button 410 is movably installed at the first through hole 217. The top pry structure 400 includes a pusher 420, which is rotatably installed in the accommodating cavity 212. A bushing 430 is rotatably installed at one end of the pusher 420, and the bushing 430 passes through the third guide hole 340. The other end of 0 extends to one side of the first button 410; pressing the first button causes the pusher to swing, which in turn moves the latch upward, causing the stop lever to retract into the cavity; this structural design can convert the lateral force applied to the first button into the power to pull the pusher upward, thereby achieving the unlocking action while gripping the handle, which is convenient for actual operation; the pusher is engaged with the third guide hole through a rotatable bushing, which can reduce moving friction and drive the latch upward more smoothly under the same force, which also facilitates the subsequent descent and reset of the latch.

[0047] Furthermore, such as Figure 12As shown, the pusher 420 includes a swing rod 421, one end of which is fixedly provided with a support bar 422, and the end of the support bar 422 is fixedly provided with a column bar 423. The bushing 430 is rotatably sleeved on the column bar 423. A first protrusion is fixedly provided on the swing rod 421, and a first slot 424 is provided on the top surface of the first protrusion. A first circular hole 425 is provided at the bottom of the slot 424. A protruding post 218 is fixedly provided at the bottom of the receiving cavity 212. The diameter of the protruding post 218 is adapted to the diameter of the first circular hole 425, and the swing rod is rotatably mounted on the protruding post. The first slot 421... A first torsion spring 440 is installed at 24 locations; a cover plate 230 is installed on the top of the accommodating cavity 212, and a second protrusion is provided on the bottom surface of the cover plate 230. A second slot is provided on the bottom surface of the second protrusion, and the upper end of the first torsion spring 440 is engaged in the second slot; the first torsion spring provides the return force for the push member; this structural design allows the push member to rotate by being sleeved on the outside of the protrusion through the first round hole, and the overall structure is simple; the setting of the first torsion spring can provide the push member with the power to swing and return, and push the first button outward to the reset, which facilitates subsequent adjustment operations;

[0048] Furthermore, the inner diameter of the bushing is adapted to the diameter of the shaft strip, and the inner diameter of the bushing is smaller than the diameter of the shaft strip. The bushing is fitted onto the shaft strip, and the end is limited by a retaining spring installed on the shaft strip to prevent it from falling off. The bushing passes through the support plate and extends outward, so that when the pusher swings, the bushing still maintains its engagement with the third guide hole, ensuring that the bushing will not fall off the support plate and maintaining effective prying of the lock tongue.

[0049] The first button slides close to the inner wall of the receiving cavity. The two ends of the inner side of the first button are provided with outward protruding baffles to prevent the first button from disengaging from the first through hole. Its interior is close to the swing rod. The inward pressing movement is limited by the swing rod and will not disengage from the part of the first through hole. After the pressure is released, the first button is reset by the push of the swing rod.

[0050] Furthermore, to maintain an aesthetically pleasing overall appearance, most electric pressure cookers currently have their exhaust valve opening mechanism located on the handle; in this application, as... Figures 6 to 8 As shown, the exhaust valve 240 on the pot lid 200 is located on the bottom side of the frame 211; the venting mechanism 600 for opening the exhaust valve is installed at the handle 200, and the venting mechanism is adjusted and locked to keep the exhaust valve in the venting state; the top pry structure 400 is used to unlock the venting mechanism 600 to reset the venting mechanism and the exhaust valve.

[0051] It also utilizes the interior of the handle as a space for installing the venting mechanism, and limits the venting mechanism to be locked after adjustment, so that the exhaust valve remains in a venting state, unlike the conventional method of pressing and opening simultaneously; in addition, it cleverly uses the top lever structure as a component to unlock the venting mechanism, eliminating the need for an additional separate unlocking structure, which facilitates the layout of the internal structure of the accommodating cavity and is also convenient to operate; furthermore, since opening and closing the lid requires adjusting the top lever structure, it will naturally push to the pressure plate area, which can release the lock, ensuring that the rocker and the second button return to their original positions, and the exhaust valve also returns to the closed state, preventing the exhaust valve from being opened due to accidental touch before the electric pressure cooker is started.

[0052] Furthermore, the frame is thickened at the end near the latch, and the accommodating cavity at this location is recessed to provide more space for the subsequent installation of other structural components; such as Figure 6 , Figure 9 , Figure 10 As shown, the venting mechanism 600 includes a rocker 610, a second button 620, a spring 630, and a lock 640. The rocker 610 is rotatably mounted on the top surface of the pot lid 200, located below the frame 211. One end of the rocker 610 is engaged with the bottom of the valve head of the vent valve 240, and the other end is tilted upwards towards the bottom surface of the frame, with the end position tilted downwards. The accommodating cavity 212 has a third through hole 221 corresponding to the tilted end of the rocker, and a second through hole 222 corresponding to the side wall of the accommodating cavity 212. The second button 620 is installed at the second through hole 222, and a pressure block 621 is fixedly provided on the bottom surface of the second button 620. The bottom surface of the pressure block has a first inclined surface corresponding to the tilted end of the rocker. Pressing the second button inwards... When the pressure block exerts a downward thrust on the rocker, the inner wall of the third through hole 221 is provided with a countersunk hole 223, and the spring 630 is located in the countersunk hole 223 to provide the pressure block 621 with a restoring elastic force. The locking member 640 is located above the second button 620. When the second button is moved into place, the locking member locks the second button. The locking member 640 is located within the movement trajectory of the push member 420, and the locking member is unlocked by the swinging push member. The overall structure is simple and easy to use. The venting action can be achieved by pressing the second button into place, and it can be maintained in the venting state without continuous pressing. After the venting is completed, the second button, rocker, and vent valve can be reset simultaneously during the opening of the cover.

[0053] It should be noted that the weight of the end of the rocker closer to the exhaust valve is greater than the weight of the other end. When the rocker is not subjected to other external forces, the end closer to the exhaust valve will still swing downwards. Of course, when it is connected to the valve head of the exhaust valve, it will also be in a downward swinging state under the return spring force of the exhaust valve itself.

[0054] Furthermore, such as Figure 7 , Figure 13 , Figure 14As shown, the locking component 640 includes a pressure plate 641, which is located above the second button 620. The end of the pressure plate 641 away from the pusher 420 is rotatably mounted on the inner wall of the accommodating cavity 212. A second torsion spring 642 is installed at the rotation axis to provide a pressing force for the pressure plate. A first helical tooth 643 is fixedly provided on the bottom surface of the pressure plate 641. A second helical tooth 622 is fixedly provided on the top surface of the second button 620. When the second button is pressed inward, the second helical tooth moves to the opposite side of the first helical tooth, and the first helical tooth blocks the reset of the second button, thus forming a lock. The two helical teeth work together to achieve unidirectional movement to the corresponding position and then lock. The lock can be released when the helical teeth disengage from the working position. The overall structure and principle are simple and convenient to use.

[0055] The end of the pressure plate 641 away from the second torsion spring 642 curves upward in an arc, corresponding to the position of the frame bar 422, and its top end is higher than the top of the frame bar 422; the frame bar has a cylindrical strip structure; when the frame bar swings towards the pressure plate, it can push the pressure plate upward, causing the first helical tooth to disengage from the second helical tooth part and unlocking; this design can use the raised end of the pressure plate as a guide part, so that the frame bar can smoothly push the end of the pressure plate up when swinging, thereby unlocking.

[0056] This invention has been described through preferred embodiments. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. This invention is not limited to the specific embodiments disclosed herein; other embodiments falling within the scope of the claims are also within the protection scope of this invention.

Claims

1. An electric pressure cooker with a lid-closing function, comprising a pot body and a lid, wherein a support block is provided on the top of the rear wall of the pot body, and a drainage groove is provided on the top surface of the support block; characterized in that: The lid has a handle on top, one end of which extends out of the side wall of the lid. The inside of the protruding end of the handle is a locking tongue, the bottom of which extends outward. The locking tongue is moved vertically by the top pry structure, so that the bottom of the locking tongue retracts inward. The first button for adjusting the top pry structure is located on the gripping part of the handle. The bottom of the drainage channel is provided with a socket, the shape of which is adapted to the bottom shape of the lock tongue; a cover structure is installed at the support block, the cover structure including a pusher that can move along the drainage channel. Once the cooking program requiring full lid is started, the lid-closing mechanism activates, causing the pusher to move and push in the preset direction.

2. An electric pressure cooker with a lid-closing function according to claim 1, characterized in that: The cover structure includes a pusher and a motor; The outer wall of the support block has an arc-shaped structure, and the inside of the support block has a clamping cavity with the bottom of the cavity open. The motor is installed on the top of the clamping cavity by bolts, with the output shaft facing downwards. A gear is fixedly installed on the output shaft of the motor. The drainage trough has a first strip-shaped opening on its wall away from the center of the pot body, and there is a gap between the bottom of the first strip-shaped opening and the bottom of the drainage trough. A bracket is installed at the bottom of the clamping cavity, and a groove is provided at the top of the bracket to support the bottom of the pusher. The pusher includes an arc-shaped rack, with a vertical rod fixed to the top of one end of the rack, and a push rod fixed to one side of the top of the vertical rod; the push rod passes through the first strip-shaped opening and extends into the interior of the drainage groove, the vertical rod slides against the outer wall of the support block, and the rack slides against the bottom of the groove; the rack meshes with the gear for transmission, and the pusher is moved by the motor.

3. An electric pressure cooker with a lid-closing function according to claim 2, characterized in that: A stop bar is fixedly provided on the top edge of the bracket. The stop bar has an arc-shaped structure, and the wall of the rack away from the gear slides against the inner wall of the stop bar.

4. An electric pressure cooker with a lid-closing function according to claim 1, characterized in that: The handle includes a frame that is fixedly mounted above the top surface of the lid, one end of which extends outward from the side wall of the lid, and the protruding end extends downward along the side wall of the lid to the bottom surface of the lid. The top surface of the frame is provided with a receiving cavity, and a concave cavity is provided at the protruding end of the receiving cavity. A convex plate is fixedly provided on one side of the top of the concave cavity. The bottom of the concave cavity is provided with a second guide hole, and the convex plate is provided with a first guide hole corresponding to the second guide hole. Both the first guide hole and the second guide hole are prismatic hole structures. The locking tongue includes a guide rod, a stop rod fixedly disposed at the bottom end of the guide rod, and a support plate fixedly disposed at the top end of the guide rod; The shape of the guide rod is adapted to the shape of the first guide hole and the second guide hole, and the guide rod is movably inserted through the first guide hole and the second guide hole; The support plate is provided with a third guide hole that penetrates both side walls. The third guide hole is an inclined strip-shaped hole, with the end of the third guide hole away from the guide strip inclined downward. A first through hole is provided on the side wall of the receiving cavity away from the concave cavity, and a first button is movably installed at the first through hole; The top skid structure includes a top pusher, which is rotatably mounted in the accommodating cavity. One end of the top pusher is rotatably mounted with a bushing, which passes through the third guide hole. The other end of the top pusher extends to one side of the first button. Pressing the first button causes the pusher to swing, which in turn moves the latch upward, causing the stop lever to retract into the cavity.

5. An electric pressure cooker with a lid-closing function according to claim 4, characterized in that: The jacking component includes a swing rod, one end of which is fixedly provided with a frame bar, and the end of the frame bar is fixedly provided with a column bar. The bushing is rotatably sleeved on the column bar. A first protrusion is fixedly provided on the swing rod, the top surface of the first protrusion is provided with a first groove, and the bottom of the first groove is provided with a first round hole. A protruding post is fixedly provided at the bottom of the accommodating cavity. The diameter of the protruding post is adapted to the diameter of the first circular hole. The swing rod is rotatably mounted on the protruding post. A first torsion spring is installed in the first slot; A cover plate is installed on the top of the accommodating cavity, and a second protrusion is provided on the bottom surface of the cover plate. A second slot is provided on the bottom surface of the second protrusion, and the upper end of the first torsion spring is engaged in the second slot. The first torsion spring provides a restoring force for the pusher.

6. An electric pressure cooker with a lid-closing function according to claim 5, characterized in that: The vent valve on the pot lid is located on one side of the bottom of the frame; The venting mechanism for opening the exhaust valve is installed on the handle. The venting mechanism is adjusted and locked to keep the exhaust valve in a venting state. The top skid structure is used to unlock the venting mechanism, allowing the venting mechanism and exhaust valve to reset.

7. An electric pressure cooker with a lid-closing function according to claim 6, characterized in that: The frame is thickened at the end near the latch, and the receiving cavity at this position is recessed. The deflation mechanism includes a rocker, a second button, a spring, and a lock. The rocker arm is mounted on the top surface of the pot lid, below the frame; one end of the rocker arm is engaged with the bottom of the exhaust valve head, and the other end tilts upwards toward the bottom of the frame, with the end position tilting downwards. The receiving cavity is provided with a third through hole at the raised end of the rocker, and the side wall of the receiving cavity is provided with a second through hole. The second button is installed at the second through hole, and a pressure block is fixedly provided on the bottom surface of the second button. The bottom surface of the pressure block is provided with a first inclined surface at the inclined end of the rocker. When the second button is pressed inward, the pressure block can generate a downward pushing force on the rocker. The inner wall of the third perforation is provided with a countersunk hole, and the spring is located in the countersunk hole to provide the spring force for the pressure block to return to its original position. The locking mechanism is located above the second button. When the second button is moved into place, the locking mechanism locks the second button. The locking element is located within the movement trajectory of the pushing element, and the locking element is unlocked by the swinging pushing element.

8. An electric pressure cooker with a lid-closing function according to claim 7, characterized in that: The locking component includes a pressure plate, which is located above the second button. The end of the pressure plate away from the pusher is rotatably mounted on the inner wall of the receiving cavity. A second torsion spring is installed at the rotation axis to provide a pressing force for the pressure plate. A first helical tooth is fixedly provided on the bottom surface of the pressure plate. The top surface of the second button is fixedly provided with a second oblique tooth; when the second button is pressed inward, the second oblique tooth moves to the opposite side of the first oblique tooth, and the first oblique tooth blocks the reset of the second button, thus forming a lock; The end of the pressure plate away from the second torsion spring curves upward in an arc, corresponding to the position of the frame bar, and its top end is higher than the top of the frame bar; the frame bar has a cylindrical strip structure; when the frame bar swings towards the pressure plate, it can push the pressure plate upward, causing the first helical tooth to disengage from the second helical tooth part and release the lock.

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