Pressure cooker capable of assisting floater to fall
By using elastic arms and assists in the pressure pot to help the float fall, the problem of the float not falling is solved, the user experience is improved and the design is simplified, and the float falls back and opens the cover is achieved smoothly.
Patent Information
- Application Number
- CN202323482686.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-19
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2033-12-19
AI Technical Summary
The float cannot fall under abnormal conditions, resulting in the pressure boiler being unable to open the lid, reducing the user experience.
A power supply including an elastic arm is designed. Through the pressing action part and extension arm of the elastic arm, the float moves downward under force when the lock cover rotates, helping the float to switch to the open position, solving the problem that the float cannot fall. , and optimize the assist effect and installation position through the trigger arm and stopper to ensure the smooth fall of the float.
It realizes that the float can fall smoothly under abnormal conditions, avoids noise and float damage, simplifies structural design, reduces production costs, and improves user experience and product competitiveness.
Smart Images
Figure CN222149673U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of kitchen appliances, and in particular relates to a pressure cooker capable of assisting a float in falling. Background Art
[0002] During the cooking process of the pressure cooker, the liquid in the cooking chamber boils and produces steam. The pressure in the cooking chamber rises slowly, and the steam is discharged through the exhaust channel in the float valve. Under the combined action of the steam and the pressure in the cooking chamber, the float moves upward to drive the seal provided at the bottom of the float to move upward. When the seal abuts and seals against the valve seat of the float valve, the steam in the cooking chamber cannot be discharged, and the pressure in the cooking chamber further rises to reach the final pressure required for cooking. When the liquid in the cooking chamber boils, a small amount of soup may flow into the exhaust channel in the float valve and flow outward through the exhaust channel, resulting in some sticky soup remaining on the surface of the float valve. When the pressure in the cooking chamber drops to the outside atmospheric pressure, the float in the float valve will fall by its own gravity, so that the lock cover will not be blocked by the floating float when it is rotated to open the cover. However, when the soup adhering to the outer surface of the float valve solidifies, it may hinder the fall of the float, resulting in the float being unable to return to the initial position, thereby resulting in the lock cover being unable to rotate to the open position, and the pressure cooker cannot be opened, which reduces the user experience. Utility Model Content
[0003] The present application provides a pressure cooker that can assist a float to fall, so as to solve the technical problem that under abnormal conditions, the float cannot fall due to its own gravity, thereby causing the pressure cooker to be unable to open its lid.
[0004] The technical solution adopted in this application is:
[0005] A pressure cooker capable of assisting a float to fall comprises a fixed cover, a locking cover rotatably mounted on the fixed cover, and a float buoyantly arranged on the locking cover to have an open position and a closed position, wherein the pressure cooker further comprises an assisting member mounted on the fixed cover, the assisting member being provided with an elastic arm, the elastic arm comprising a pressing portion and an obliquely arranged extension arm, the float rotates with the locking cover to press against the pressing portion of the elastic arm, the extension arm is forced to move downward, so that the pressing portion drives the float to switch to the open position.
[0006] The pressure cooker capable of assisting the float to fall described in the present application also includes the following additional technical features:
[0007] The assisting member further comprises a trigger arm connected to the extension arm, the trigger arm constitutes the pressing action portion, and the float contacts and presses against the trigger arm.
[0008] A first deformation space with an upward opening is formed between the trigger arm and the extension arm.
[0009] The extension length of the trigger arm along the direction perpendicular to the rotation direction of the float is greater than the outer diameter of the float so as to wrap the float when the two are pressed against each other.
[0010] The fixed cover is provided with a stopper located on the rotation path of the float, and the stopper is used to block the rotation of the float to prevent the locking cover and the pressure cooker body from being unlocked; the assisting member is arranged on the stopper.
[0011] The stopper is provided with an escape notch which is recessed along the rotation path of the float, and at least a part of the assisting member is installed in the escape notch.
[0012] A sealing member is provided at the lower part of the float, and the sealing member floats with the float to have a sealing position and a falling position, and the displacement of the sealing member from the sealing position to the falling position is greater than the displacement of the extension arm moving downward under force.
[0013] The power assisting member is further provided with a main body, which includes a positioning portion and a blocking portion connected to the positioning portion and extending downward, the extending arm is provided at the blocking portion, and a second deformation space is formed between the blocking portion and the extending arm.
[0014] The single displacement of the extension arm when it moves downward under force is S, and S satisfies: 0.5mm≦S≦1mm.
[0015] The assisting member is detachably mounted on the fixing cover.
[0016] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:
[0017] 1. The float in the present application is arranged on the locking cover to rotate with the rotation of the locking cover. Therefore, an assisting member is arranged on the fixed cover. When the float cannot fall due to abnormal reasons, the float can come into contact with the assisting member when the float rotates with the locking cover, and the pressing part of the elastic arm comes into pressing contact with the float. The extension arm is forced to move downward, so that the float can move downward driven by the friction between the pressing part and the assisting float to switch to the open position, thereby solving the technical problem that the pressure cooker cannot be opened due to the inability of the float to fall.
[0018] Moreover, due to the elastic characteristics of the elastic arm, the collision between the float and the elastic arm is a flexible collision. Therefore, when the float cannot fall back normally and it is necessary to rotate the lock cover to make the float collide with the elastic arm once or multiple times to help the float fall, the collision process will not generate noise, thereby improving the user experience. Moreover, since the collision is a flexible contact, the float will not be damaged by impact, thus avoiding deformation of the float due to force, thereby ensuring the normal use of the float.
[0019] Furthermore, the float is driven by means of the elastic deformation and self-resetting function of the elastic arm. Compared with the technical solution of setting an electric drive structure to drive the float to fall, the structural design of the fixed cover is simplified, the production cost and control cost are reduced, the entire technical solution is simple and easy, and can enhance the competitiveness of the product.
[0020] 2. As a preferred embodiment of the present application, the assisting member also includes a trigger arm connected to the extension arm, the trigger arm constitutes a pressing portion, and the float contacts and presses against the trigger arm. By adding a trigger arm, the contact area between the assisting member and the float can be increased when the float presses against the assisting member, so as to provide a stronger assisting effect for the float, making it easier for the float to fall back under the assisting effect of the assisting member. Moreover, the setting of the trigger arm can make it easier to drive the extension arm to move downward when the float contacts and presses against the trigger arm, thereby driving the float to fall, making the lid opening operation of the pressure cooker smoother and easier.
[0021] Furthermore, the extension length of the trigger arm in the direction perpendicular to the rotation direction of the float is greater than the outer diameter of the float, so that when the float contacts and squeezes the trigger arm, the trigger arm can wrap the float to a certain extent, further increasing the contact area between the trigger arm and the float, providing a stronger assist effect for the float, and making it easier for the float to move with the downward movement of the extension arm.
[0022] 3. As a preferred embodiment of the present application, the fixed cover is provided with a stopper located on the rotation path of the float, and the assisting member is arranged on the stopper, thereby simplifying the structural design of the fixed cover, so that the installation of the assisting member can be achieved with the aid of the stopper, and the installation position of the assisting member is ensured, so that the assisting member can collide with the float when the float cannot fall and rotates with the locking cover.
[0023] Furthermore, the stopper is provided with an avoidance notch recessed along the rotation path, and at least a portion of the assisting member is installed in the avoidance notch, so as to limit and retain the assisting member through the avoidance notch, so as to avoid the assisting member from tipping over when hit by the float, thereby avoiding the assisting member from falling off and shifting, and ensuring that the extension arm can move downward smoothly to drive the float to fall back, thereby ensuring the smoothness of the float falling back, thereby ensuring the normal opening of the pressure cooker lid.
[0024] 4. As a preferred embodiment of the present application, a seal is provided at the bottom of the float, and the seal floats with the float to have a sealing position and a falling position, and the displacement of the seal from the sealing position to the falling position is greater than the displacement of the extension arm moving downward under force. Such an arrangement can avoid the existence of pressure in the cooking chamber of the pressure cooker, and when the float valve is working normally, even if the lock cover rotates due to an erroneous operation, the float hits the assisting member and falls slightly, due to the existence of pressure in the cooking chamber and the deformation of the seal itself, the float will remain in the closed position to avoid exhaust and erroneous opening of the cover during pressure cooking.
[0025] 5. As a preferred embodiment of the present application, the single displacement of the extension arm when it is forced to move downward is S, and S satisfies: 0.5mm≦S≦1mm. With such an arrangement, the displacement of the float in a single downward movement under the assistance of the elastic arm can be within a reasonable range, so that under abnormal conditions, the float can fall after a small number of rotations of the lock cover to hit the assisting member. If S is less than 0.5mm, since the single displacement is too small, the user needs to rotate the lock cover many times and repeatedly to achieve the fall of the float, which seriously affects the user experience. If S is greater than 1mm, the inclined extension length of the extension arm needs to be set longer. When the extension arm is longer, its assisting effect on the float will be weakened, and the user needs to rotate the lock cover many times and repeatedly to achieve the fall of the float, which reduces the user experience. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:
[0027] Figure 1 This is an exploded view of some components of a pressure cooker according to one embodiment of the present application;
[0028] Figure 2 A top view of some components of a pressure cooker according to an embodiment of the present application;
[0029] Figure 3 This is a schematic diagram of the state of some components of the pressure cooker when the float is in contact with the assisting member in one embodiment of the present application;
[0030] Figure 4 for Figure 3 A magnified view of part A;
[0031] Figure 5 This is a schematic diagram of the state of some components of the pressure cooker when the float is in contact and squeezed with the assisting member in one embodiment of the present application;
[0032] Figure 6 for Figure 5 A magnified view of part B;
[0033] Figure 7 This is a three-dimensional diagram of an embodiment of the power assist member in this application;
[0034] Figure 8 This is a schematic diagram of the state when the sealing member in the present application is in the sealing position;
[0035] Fig. 9 This is a schematic diagram of the state when the sealing member in the present application is in the fallen position.
[0036] in,
[0037] 1. Float; 11. Air inlet; 12. Air outlet;
[0038] 2. assisting member; 21. main body; 22. extension arm; 23. trigger arm; 24. blocking part; 25. positioning column;
[0039] 3. The first deformation space;
[0040] 4. The second deformation space;
[0041] 5. Stopper; 51. Mounting hole; 52. Avoidance gap;
[0042] 6. Valve seat;
[0043] 7. sealing element; 71. sealing body; 72. sealing lip;
[0044] 8. Fixed cover;
[0045] 9. Lock the cover. DETAILED DESCRIPTION
[0046] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.
[0047] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present application and the features in each embodiment may be combined with each other without conflict.
[0048] In addition, in the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0049] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0050] In the present application, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.
[0051] like Figures 1 to 6 As shown, a pressure cooker capable of assisting a float to fall comprises a fixed cover 8, a locking cover 9 rotatably mounted on the fixed cover 8, and a float 1 floatably arranged on the locking cover 9 to have an open position and a closed position, and also comprises an assisting member 2 mounted on the fixed cover 8, the assisting member 2 is provided with an elastic arm, the elastic arm comprises a pressing portion and an inclined extending arm 22, the float 1 rotates with the locking cover 9 to press against the pressing portion of the elastic arm, and the extending arm 22 is forced to move downward, so that the pressing portion drives the float 1 to switch to the open position.
[0052] The so-called open position refers to the position where the air inlet 11 of the float 1 can communicate with the cooking chamber of the pressure cooker, at which time the steam in the cooking chamber can enter the exhaust passage of the float 1 through the air inlet 11 and be discharged through the air outlet 12 of the float 1. The so-called closed position refers to the position where the float 1 floats up and the communication path between the air inlet 11 of the float 1 and the cooking chamber of the pressure cooker is cut off, at which time the steam cannot be discharged, so that the pressure in the cooking chamber rises to the preset cooking pressure.
[0053] The float 1 in the present application is arranged on the lock cover 9 to rotate with the rotation of the lock cover 9. Therefore, an assisting member 2 is arranged on the fixed cover 8. When the float 1 cannot fall due to abnormal reasons, the float 1 can contact the assisting member 2 when the float 1 rotates with the lock cover 9, and the pressing part of the elastic arm contacts the float 1, and the extension arm 22 is forced to move downward (refer to Figure 4 and Figure 6 ), so that the float 1 can move downwards driven by the friction between the float 1 and the pressing part, and assist the float 1 to switch to the open position, thereby solving the technical problem that the pressure cooker cannot be opened due to the float 1 being unable to fall.
[0054] Moreover, due to the elastic characteristics of the elastic arm, the collision between the float 1 and the elastic arm is a flexible collision. Therefore, when the float 1 cannot fall back normally and it is necessary to rotate the lock cover 9 to make the float 1 collide with the elastic arm 22 once or multiple times to help the float 1 fall, the collision process will not generate noise, thereby improving the user experience. Moreover, due to the flexible contact during the collision, the float 1 will not be damaged by impact, thereby avoiding deformation of the float 1 due to force, thereby ensuring the normal use of the float 1.
[0055] Furthermore, the float 1 is driven by means of the elastic deformation and self-resetting function of the elastic arm. Compared with the technical solution of setting an electric drive structure to drive the float to fall, the present application simplifies the structural design of the fixed cover 8, reduces the production and manufacturing costs and control costs, and the entire technical solution is simple and easy to implement, which can enhance the competitiveness of the product.
[0056] The specific structures of the assisting member 2 and the pressing portion in the present application are not limited, and any one of the following embodiments may be adopted:
[0057] Embodiment 1: The assisting member 2 includes a main body 21 and an extension arm 22. The extension arm 22 has a fixed end connected to the main body 21 and a free end away from the fixed end. The free end constitutes a pressing part. When the float 1 is abnormally unable to fall, the lock cover 9 is rotated to make the float 1 rotate synchronously. The float 1 contacts and squeezes the free end. The extension arm 22 is forced to move downward. The float 1 falls back under the direct drive of the extension arm 22 and switches to the open position.
[0058] Implementation method 2: Figures 3 to 7As shown, the assisting member 2 also includes a trigger arm 23 connected to the extension arm 22, and the trigger arm 23 constitutes a pressing part, and the float 1 contacts and presses against the trigger arm 23. Compared with the first embodiment, in the second embodiment, it is the trigger arm 23 that can directly contact the float 1. By adding the trigger arm 23, when the float 1 presses against the assisting member 2, the contact area between the assisting member 2 and the float 1 can be increased, so as to provide a stronger assisting effect for the float 1, so that the float 1 is more likely to fall back under the assisting effect of the assisting member 2. Moreover, the setting of the trigger arm 23 can make it easier to drive the extension arm 22 to move downward when the float 1 contacts and presses against the trigger arm 23, thereby driving the float 1 to fall, making the lid opening operation of the pressure cooker smoother and easier.
[0059] In the second embodiment, the association relationship between the trigger arm 23 and the main body 21 can adopt any one of the following embodiments:
[0060] Example 1: Figure 4 , Figure 7 As shown, a first deformation space 3 with an opening facing upward is formed between the trigger arm 23 and the extension arm 22. That is, in this embodiment 1, the trigger arm 23 is connected to the main body 21 of the power-assisting member 2 through the extension arm 22, and there is no direct connection between the trigger arm 23 and the main body 21, so that the first deformation space 3 with an opening facing upward can be formed between the trigger arm 23 and the extension arm 22, so that the trigger arm 23 and the extension arm 22 form a structure that is approximately V-shaped. The existence of the first deformation space 3 can improve the deformation performance of the trigger arm 23 and the extension arm 22, reduce the pulling of the main body 21 on the two, so that when the float 1 contacts and presses the trigger arm 23, the float 1 can apply force to the extension arm 22 more concentratedly to drive the extension arm 22 to move downward, thereby improving the power-assisting effect on the float 1, and then realizing the position switching of the float 1.
[0061] In this embodiment 1, the extension direction of the trigger arm 23 is not limited, and it can adopt any one of the following examples:
[0062] Example 1: One end of the trigger arm 23 is connected to the extension arm 22, and the other end extends vertically upward, so that the trigger arm 23 is in a vertical shape.
[0063] Example 2: One end of the trigger arm 23 is connected to the extension arm 22 and the other end extends upwardly at an angle, so that the trigger arm 23 is inclined. Preferably, the trigger arm 23 extends upwardly in a direction away from the main body 21 .
[0064] The vertical dimension of the trigger arm 23 may be larger than the vertical dimension of the extension arm 22 , or smaller than the vertical dimension of the extension arm 22 , that is, the other end of the trigger arm 23 extends upward a shorter distance, which is not limited in the present application.
[0065] Embodiment 2: One end of the trigger arm 23 is connected to the extension arm 22 , and the other end is connected to the main body 21 , and a hollow approximately triangular structure is formed between the trigger arm 23 , the extension arm 22 and the main body 21 .
[0066] Embodiment 3: One end of the trigger arm 23 is connected to the extension arm 22, and the side of the trigger arm 23 connected to the extension arm 22 extends toward the main body 21 and is connected to the main body 21, so as to form a solid approximately triangular structure between the trigger arm 23, the extension arm 22 and the main body 21.
[0067] As a preferred embodiment of the second embodiment, Figure 2 and Figure 7 As shown, the trigger arm 23 extends along a length perpendicular to the rotation direction of the float 1 ( Figure 7 The length in the front-to-back direction) is greater than the outer diameter of the float 1, so that when the float 1 contacts and squeezes the trigger arm 23, the trigger arm 23 can wrap the float 1 to a certain extent, further increasing the contact area between the trigger arm 23 and the float 1, providing a stronger assisting effect for the float 1, making it easier for the float 1 to move with the downward movement of the extension arm 22.
[0068] As a preferred embodiment of the second embodiment, the side of the trigger arm 23 facing the float is a rough surface, such as a frosted surface, a surface with grooves, etc., to enhance friction.
[0069] As a preferred embodiment of the present application, the fixed cover 8 is provided with a stopper 5 located on the rotation path of the float 1, and the stopper 5 is used to stop the float 1 from rotating to prevent the lock cover 9 from unlocking from the pressure cooker body. By adding the stopper 5, when there is pressure in the cooking chamber of the pressure cooker, if there is an operation of opening the cover by mistake, that is, when the lock cover 9 is rotated under the condition of pressure in the cooking chamber, because the float 1 is in a closed position of floating upward, when the lock cover 9 rotates, the stopper 5 will prevent the lock cover 9 from switching from the locked position with the pot body to the unlocked position by blocking the rotation of the float 1, thereby avoiding accidental opening of the cover.
[0070] The present application does not limit the installation position of the assisting member 2, which includes but is not limited to the following embodiments:
[0071] Example 1: Figures 1 to 3 , Figure 5 As shown, the assisting member 2 is arranged on the stopper 5. With such an arrangement, the structural design of the fixed cover 8 can be simplified, so that the assisting member 2 can be installed with the help of the stopper 5, and the installation position of the assisting member 2 is guaranteed, so that the assisting member 2 can collide with the float 1 when the float 1 cannot fall and rotates with the lock cover 9.
[0072] Furthermore, if Figure 1 and Figure 2 As shown, the stopper 5 is provided with an avoidance notch 52 recessed along the rotation path, and at least a portion of the assisting member 2 is installed in the avoidance notch 52, so as to limit and retain the assisting member 2 through the avoidance notch 52, so as to avoid the assisting member 2 from tipping over when hit by the float 1, thereby avoiding the assisting member 2 from falling off and shifting, and ensuring that the extension arm 22 can move downward smoothly to drive the float 1 to fall back, thereby ensuring the smoothness of the fall of the float 1, thereby ensuring the normal opening of the pressure cooker lid.
[0073] In this embodiment, the installation position of the assisting member 2 can be any one of the following examples:
[0074] Example 1: The assisting member 2 is also provided with a main body 21, which is arranged above the stop member 5 and located on the outside of the avoidance gap 52. One end of the extension arm 22 is connected to the main body 21, and the other end extends downward so that a partial area of the extension arm 22 is located inside the avoidance gap 52.
[0075] Example 2: The assisting member 2 is further provided with a main body 21 , and the main body 21 and the extension arm 22 are both located inside the avoidance gap 52 . The inner wall of the avoidance gap 52 is provided with a positioning structure connected to the main body 21 .
[0076] Example 3: Figure 4 , Figure 6 and Figure 7 As shown, the assisting member 2 is further provided with a main body 21 , which includes a positioning portion and a blocking portion 24 connected to the positioning portion and extending downward, and an extension arm 22 is provided at the blocking portion 24 , and a second deformation space 4 is formed between the blocking portion 24 and the extension arm 22 .
[0077] Furthermore, the main body 21 is arranged above the stopper 5 and is located on the outside of the avoidance gap 52, the blocking portion 24 extends downward to extend into the avoidance gap 52, at least a portion of the extension arm 22 is located inside the avoidance gap 52, and at least a portion of the second deformation space 4 is also located inside the avoidance gap 52. When the extension arm 22 moves downward under the action of the float 1, the blocking portion 24 located inside the avoidance gap 52 will produce a stop limit on the extension arm 22, and the avoidance gap 52 itself will have a limiting effect on the extension arm 22 to prevent the extension arm 22 from tipping over when it is subjected to thrust, thereby ensuring the deformation position of the extension arm 22, so that the extension arm 22 can move downward along the second deformation space 4 to drive the float 1 to fall back smoothly.
[0078] Preferably, the assisting member 2 is detachably mounted on the stopper 5 to facilitate installation, removal and replacement of the assisting member 2. Figure 1 and Figure 2As shown, the stopper 5 is provided with a mounting hole 51 , and the main body 21 is provided with a positioning column 25 extending downward. The positioning column 25 is inserted into the mounting hole 51 and has an interference fit with the mounting hole 51 to achieve detachable installation of the assisting member 2 on the stopper 5 .
[0079] Embodiment 2: The fixed cover 8 is provided with a positioning bracket extending inward, and the power-assisting member 2 is provided on the positioning bracket. Furthermore, the power-assisting member 2 is detachably mounted on the positioning bracket to facilitate installation, removal and replacement of the power-assisting member 2.
[0080] Embodiment 3: The assisting member 2 is fixed to the fixing cover 8 by gluing. For example, the assisting member 2 is fixed to the stopper 5 by gluing. In another example, the assisting member 2 is fixed to the positioning bracket extending inward from the fixing cover 8 by gluing. By gluing, the assisting member 2 is prevented from shifting during the collision, and the assisting effect of the assisting member 2 on the float 1 is ensured.
[0081] Of course, the assisting member 2 can also be detachably mounted on the fixing cover 8 by means of screws or the like, or fixed to the fixing cover 8 by means of snap clamping or the like, and this application does not make any specific limitation here.
[0082] As a preferred embodiment of the present application, the assisting member 2 is an integrally formed structure, thereby improving the structural strength of the assisting member 2 and extending the service life of the assisting member 2. The assisting member 2 is made of a flexible material such as silicone or rubber.
[0083] like Figure 8 and Fig. 9 As shown, a seal 7 is provided at the lower part of the float 1, and the seal 7 floats with the float 1 to have a sealing position and a falling position. As a preferred embodiment of the present application, the displacement of the seal 7 from the sealing position to the falling position is greater than the displacement of the extension arm 22 moving downward under force. Such an arrangement can avoid the pressure in the cooking chamber of the pressure cooker, and when the valve of the float 1 works normally, even if the lock cover 9 rotates due to an erroneous operation, the float 1 hits the assisting member 2 and falls slightly, due to the pressure in the cooking chamber and the deformation of the seal 7 itself, the float 1 will remain in the closed position to avoid exhaust and erroneous opening of the cover in the pressure cooking state. In other words, when the float 1 is in the closed position and the cooking cavity is in a normal upward pressure state and a pressure-maintaining state, even if the rotating lock cover 9 drives the float 1 to collide with the assisting member 2, even if the float 1 moves downward slightly under the drive of the assisting member 2, the downward movement of this amplitude is not enough to compensate for the displacement of the float 1 when it switches to the open position. At this time, because the sealing member 7 will be reset under its own elastic force and at the same time, under the action of the pressure in the cooking cavity, it can still drive the float 1 to float up, so that the float 1 remains in the closed position to avoid air leakage.
[0084] More specifically, Figure 8 and Fig. 9As shown, a valve seat 6 is provided on the lock cover 9, and the float 1 can be installed on the valve seat 6 in a floating manner. Preferably, the bottom wall of the valve seat 6 is a plane. A sealing member 7 is provided at the lower part of the float 1. The sealing member 7 includes a sealing body 71 and a sealing lip 72 connected to the sealing body 71 and extending upward. In the sealing position, the sealing lip 72 abuts and seals against the bottom wall of the valve seat 6, so that the connection between the air inlet 11 of the float 1 and the cooking chamber of the pressure cooker is cut off. When the cover is opened by mistake under the pressure in the cooking chamber, even if the float 1 has a slight downward displacement under the action of the booster 2, and the sealing lip 72 has a tendency to move away from the bottom wall of the valve seat 6, under the pressure in the cooking chamber, the sealing lip 72 will still be reset to the position of abutting and sealing with the valve seat 6, or the force of the booster 2 on the float 1 is not enough to overcome the pressure in the cooking chamber, and the float 1 will still remain in the closed position.
[0085] As a preferred embodiment of the present application, the single displacement of the extension arm 22 when it is forced to move downward is S, and S satisfies: 0.5mm≦S≦1mm. Figure 4 Move down to Figure 6 The position of the float 1 can assist the float 1 to move downward in a single displacement S. S satisfies: 0.5mm≦S≦1mm. With this arrangement, the displacement of the float 1 in a single downward movement under the assistance of the elastic arm can be within a reasonable range, so that under abnormal conditions, the float 1 can fall after a small number of rotations of the lock cover 9 to hit the assisting member 2. If S is less than 0.5mm, because the single displacement is too small, the user needs to rotate the lock cover 9 many times and repeatedly to achieve the fall of the float 1, which seriously affects the user experience. If S is greater than 1mm, the inclined extension length of the extension arm 22 needs to be set longer. When the extension arm 22 is longer, its assisting effect on the float 1 will be weakened, and the user needs to rotate the lock cover 9 many times and repeatedly to achieve the fall of the float 1, which reduces the user experience.
[0086] Anything not described in this application can be achieved by adopting or drawing on existing technologies.
[0087] Each embodiment in this specification is described in a progressive manner, and the same and similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims
1. A pressure cooker capable of assisting a float to fall, comprising a fixed cover, a locking cover rotatably mounted on the fixed cover, and a float buoyantly disposed on the locking cover to have an open position and a closed position, characterized in that: It also includes an assisting member installed on the fixed cover, the assisting member is provided with an elastic arm, the elastic arm includes a pressing portion and an inclined extending arm, the float rotates with the locking cover to press the pressing portion of the elastic arm, the extending arm is forced to move downward, so that the pressing portion drives the float to switch to the open position.
2. A pressure cooker capable of assisting the float to fall according to claim 1, characterized in that: The assisting member further comprises a trigger arm connected to the extension arm, the trigger arm constitutes the pressing action portion, and the float contacts and presses against the trigger arm.
3. A pressure cooker capable of assisting the float to fall according to claim 2, characterized in that: A first deformation space with an upward opening is formed between the trigger arm and the extension arm.
4. A pressure cooker capable of assisting the float to fall according to claim 2, characterized in that: The extension length of the trigger arm along the direction perpendicular to the rotation direction of the float is greater than the outer diameter of the float so as to wrap the float when the two are pressed against each other.
5. The pressure cooker capable of assisting the float to fall according to claim 1, characterized in that: The fixed cover is provided with a stopper located on the rotation path of the float, and the stopper is used to block the rotation of the float to prevent the locking cover and the pressure cooker body from being unlocked; the assisting member is arranged on the stopper.
6. A pressure cooker capable of assisting the float to fall according to claim 5, characterized in that: The stopper is provided with an escape notch which is recessed along the rotation path of the float, and at least a part of the assisting member is installed in the escape notch.
7. The pressure cooker capable of assisting the float to fall according to claim 1, characterized in that: A sealing member is provided at the lower part of the float, and the sealing member floats with the float to have a sealing position and a falling position, and the displacement of the sealing member from the sealing position to the falling position is greater than the displacement of the extension arm moving downward under force.
8. The pressure cooker capable of assisting the float to fall according to claim 1, characterized in that: The power assisting member is further provided with a main body, which includes a positioning portion and a blocking portion connected to the positioning portion and extending downward, the extending arm is provided at the blocking portion, and a second deformation space is formed between the blocking portion and the extending arm.
9. The pressure cooker capable of assisting the float to fall according to claim 1, characterized in that: The single displacement of the extension arm when it moves downward under force is S, and S satisfies: 0.5mm≦S≦1mm.
10. The pressure cooker capable of assisting the float to fall according to claim 1, characterized in that: The assisting member is detachably mounted on the fixing cover.