Cooker cover and pressure cooker comprising same

Abstract

The cooker cover comprises an inner cover and an outer cover, the inner cover is detachably connected with the outer cover, the cooker cover comprises a temperature detection assembly, the temperature detection assembly comprises a temperature probe, a support, an upper coupler and a lower coupler, the temperature probe is fixed to the support and electrically connected with the lower coupler, and the upper coupler is electrically connected with the lower coupler. The temperature probe extends from the upper end of the inner cover to the lower end of the inner cover; the support is fixed to the inner cover, and the upper surface of the support is erected high relative to the inner cover. The lower coupler is fixed on the upper surface of the bracket; the upper coupler is fixed on the outer cover; and the upper coupler and the lower coupler are provided with slots and pins which are matched with each other. The coupling structure is used for conducting on-off and detecting whether the inner cover and the outer cover are installed in place or not, meanwhile, the support is arranged, the lower coupler is fixed to the upper surface of the support, the butt joint position of the upper coupler and the lower coupler is made to be higher than the inner cover, alignment during installation of the inner cover and the outer cover is facilitated, and meanwhile a certain guiding effect is achieved in the alignment process of a contact pin and a slot.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliances, and in particular to a pot lid and a pressure cooker including the lid. Background Technology

[0002] Current pressure cookers integrate the temperature probe and inner lid as a single unit. After disassembling and cleaning the inner lid, misalignment of the temperature probe can easily occur during reinstallation of the outer and inner lids, leading to probe damage.

[0003] Existing pressure cookers integrate the weight assembly with the outer lid. However, the inner lid's weight makes cleaning difficult, and the weight's detachable connection to the inner lid makes it prone to falling off or being damaged after separation from the outer lid. Furthermore, the lack of a horizontal weight installation feedback device increases the risk of leaks due to improper installation, affecting cooking efficiency. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defect in the prior art that the inner and outer lids of the pressure cooker cannot be quickly and accurately aligned, which easily leads to damage to the lid, and to provide a lid and a pressure cooker including the lid.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] A pressure cooker lid is provided, comprising an inner lid and an outer lid, the outer lid being located above the inner lid and detachably connected to the inner lid. The lid further includes a temperature detection assembly comprising a temperature probe, a bracket, an upper coupler, and a lower coupler. The temperature probe is fixed to the bracket and electrically connected to the lower coupler, extending from the upper end of the inner lid to its lower end. The bracket is fixed to the inner lid, its upper surface being raised relative to the inner lid. The lower coupler is fixed to the upper surface of the bracket. The upper coupler is fixed to the outer lid. The upper and lower couplers have mutually compatible slots and pins, and mutually compatible circuit structures.

[0007] In this design, upper and lower couplers are installed at the outer and inner lids, respectively. The coupling structure enables on / off switching and detects whether the inner and outer lids are properly installed. A temperature detection device monitors the internal temperature of the pressure cooker during use and is electrically connected to the lower coupler to ensure connection when the inner and outer lids are aligned. A bracket is installed, and the lower coupler is fixed to the upper surface of the bracket, making the joint between the upper and lower couplers higher than the inner lid. This allows for pre-alignment during the installation of the inner and outer lids, facilitating user observation and alignment, and preventing damage to internal components due to delayed alignment. It also guides the alignment of the pins and slots.

[0008] Preferably, the pot lid includes a control unit, which is electrically connected to the circuit structure of the upper coupler.

[0009] In this design, a control unit is used to control the pressure cooker's startup. When the upper and lower couplers are successfully connected, the circuit structure of the upper coupler is connected to the control unit, and the pressure cooker starts normally. When the upper and lower couplers are not successfully connected, the circuit structure of the upper coupler is abnormally connected to the control unit, and the pressure cooker cannot start normally. The lid also provides some protection, preventing damage to its internal components if the power is turned on due to improper installation.

[0010] Preferably, the housing of the temperature probe, the housing of the lower coupler, and the bracket are formed as a single unit.

[0011] In this solution, the integrated structure design allows users to simultaneously remove the temperature probe, lower coupler, and bracket when disassembling the inner cover, reducing contact with the temperature probe and lower coupler and preventing damage. Furthermore, the fewer disassembly or installation steps required by the user effectively prevent the loss of components during operation due to an excessive number of parts.

[0012] Preferably, the inner cover has a through hole in the vertical direction, the temperature probe extends into the through hole, and the outer surface of the temperature probe and the surface of the through hole are sealed by a sealing element.

[0013] In this design, a through hole is provided to connect the detection part of the temperature probe with the inside of the pot, which allows the temperature probe to detect the temperature inside the pot more accurately. A sealing element is provided on the connection surface between the temperature probe and the through hole to prevent high-temperature gas or water vapor inside the pot from entering the pot lid through the through hole during use, which could damage the components inside the pot lid.

[0014] Preferably, the inner cover is further provided with a protective sleeve, which is connected to the bottom of the inner cover and covers the temperature probe.

[0015] In this solution, the protective cover effectively protects the part of the temperature probe that extends into the pot, preventing damage to the temperature probe from collisions. At the same time, the protective cover also helps users disassemble the temperature probe. Users can hold the protective cover and apply force to remove the temperature probe from the inner cover, which saves effort and reduces contact with the temperature probe, thus helping to extend the service life of the temperature probe.

[0016] Preferably, the inner cover is further provided with a protective sleeve, which is connected to the lower part of the inner cover and covers the temperature probe. The protective sleeve is sandwiched between the seal and the inner cover.

[0017] In this design, the protective sleeve effectively protects the portion of the temperature probe that extends into the pot, preventing damage from impacts. Simultaneously, the protective sleeve facilitates probe removal; users can grip the sleeve and apply force to detach the probe from the inner cover, reducing effort and contact with the probe. By placing the protective sleeve between the inner cover and the seal, the stability of the protective sleeve is improved, eliminating the need for additional connecting components, resulting in a simple and effective structure.

[0018] Preferably, a weight is provided on the outer cover, and a weight detection device is provided on the inner cover. The weight detection device includes a wireless strain sensor and at least two elastic elements. The elastic elements are located between the weight and the wireless strain sensor, and are respectively arranged on both sides of the wireless strain sensor.

[0019] In this design, a counterweight is used to control the pressurization and venting of the pressure cooker. A counterweight detection device is used to detect whether the counterweight is placed horizontally, preventing safety issues caused by improper installation during use. The counterweight detection device has a simple structure: an elastic element contacts the bottom of the counterweight, generating a deformation feedback voltage value. A wireless strain sensor detects the voltage value of the deformation feedback from the elastic element to determine whether the counterweight is installed correctly.

[0020] Preferably, the pot lid includes a control unit, and the wireless strain sensor is radio frequency connected to the control unit.

[0021] In this solution, a control unit is used to control the pressure cooker's startup. When the control unit receives correct feedback from the wireless strain sensor, it starts the power to begin cooking; when the control unit receives abnormal feedback from the wireless strain sensor, it fails to start the pressure cooker. This wireless connection via radio frequency eliminates the need for additional circuitry between the wireless strain sensor and the control unit, effectively simplifying the connection and improving safety.

[0022] Preferably, the inner cover has a recessed reinforcing rib area, and the hammer detection device and the bracket are connected to the reinforcing rib area.

[0023] In this design, a recessed structure is added to the inner lid to distribute the stress, which increases the structural strength of the inner lid, making it less prone to deformation during use, effectively protecting the lid's seal and extending its service life.

[0024] A pressure cooker is provided, including a lid as described above, and the pressure cooker also includes a pot body connected to the lid.

[0025] The significant advantages of this invention are as follows: Upper and lower couplers are respectively installed on the outer and inner lids, utilizing the coupling structure for connection and disconnection, and detecting whether the inner and outer lids are properly installed. A temperature detection device is used to monitor the internal temperature of the pressure cooker during use, and this device is electrically connected to the lower coupler to ensure connection when the inner and outer lids are aligned. A bracket is provided, and the lower coupler is fixed to the upper surface of the bracket, making the joint between the upper and lower couplers higher than the inner lid, facilitating alignment during installation and providing guidance for the alignment of the pins and slots. Attached Figure Description

[0026] Figure 1 This is a cross-sectional view of the pot lid structure and temperature detection component according to an embodiment of the present utility model;

[0027] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0028] Figure 3 This is a cross-sectional view of the pot lid structure and the counterweight detection device according to an embodiment of the present utility model;

[0029] Figure 4 for Figure 3 Enlarged structural diagram at point B;

[0030] Figure 5 This is a schematic diagram of the inner cover structure of an embodiment of the present utility model;

[0031] Figure 6 This is a schematic diagram of a pressure cooker according to an embodiment of the present invention.

[0032] Explanation of reference numerals in the attached figures:

[0033] Pot lid 1

[0034] Outer cover 11

[0035] Inner cover 12

[0036] Temperature detection component 2

[0037] Temperature probe 21

[0038] Upper coupler 22

[0039] Lower coupler 23

[0040] Slot 221

[0041] Pin 231

[0042] Bracket 24

[0043] Through hole 3

[0044] Seal 4

[0045] Protective Case 5

[0046] Heavy Hammer 6

[0047] 61 Weighted hammer detection device

[0048] Wireless strain sensor 611

[0049] Elastic component 612

[0050] Reinforcing rib area 7

[0051] Pot body 8 Detailed Implementation

[0052] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.

[0053] In this embodiment, a pot lid 1 is provided, such as Figure 1-6 As shown, for a pressure cooker, the lid 1 includes an inner lid 12 and an outer lid 11. The outer lid 11 is located above the inner lid 12, and the inner lid 12 and the outer lid 11 are detachably connected. The lid 1 also includes a temperature detection assembly 2, which includes a temperature probe 21, a bracket 24, an upper coupler 22, and a lower coupler 23. The temperature probe 21 is fixed to the bracket 24 and is electrically connected to the lower coupler 23. The temperature probe 21 extends from the upper end of the inner lid 12 to the lower end of the inner lid 12. The bracket 24 is fixed to the inner lid 12, and the upper surface of the bracket 24 is raised relative to the inner lid 12. The lower coupler 23 is fixed to the upper surface of the bracket 24. The upper coupler 22 is fixed to the outer lid 11. The upper coupler 22 and the lower coupler 23 have mutually compatible slots 221 and pins 231 and have mutually compatible circuit structures.

[0054] Upper coupler 22 and lower coupler 23 are respectively installed at the outer cover 11 and inner cover 12. The coupling structure is used to switch the pressure cooker on and off, and to detect whether the inner and outer covers 11 are installed in place. A temperature detection device is used to detect the internal temperature of the pressure cooker during use, and the temperature detection device is electrically connected to the lower coupler 23 to ensure that the connection is made when the inner and outer covers 11 are aligned. A bracket 24 is set up and the lower coupler 23 is fixed to the upper surface of the bracket 24, so that the mating part of the upper coupler 22 and the lower coupler 23 is raised relative to the inner cover 12. When installing the inner cover 12 and the outer cover 11, the alignment can be done in advance, which is convenient for users to observe and align. It avoids damage to internal components due to late alignment. At the same time, it also plays a certain guiding role in the alignment process of the pin 231 and the slot 221.

[0055] Specifically, in this embodiment, such as Figure 1-2 As shown, pin 231 is located on the top surface of the lower coupler 23, slot 221 is located at the bottom of the upper coupler 22, and temperature probe 21 is located at the bottom of the lower coupler 23, extending into the inner cover 12.

[0056] In this embodiment, the pot lid 1 includes a control unit, which is electrically connected to the circuit structure of the upper coupler 22. The control unit can be used to control the pressure cooker's startup. When the upper coupler 22 and lower coupler 23 are successfully connected, the circuit structure of the upper coupler 22 is connected to the control unit, and the pressure cooker starts normally. When the upper coupler 22 and lower coupler 23 are not successfully connected, the circuit structure of the upper coupler 22 is abnormally connected to the control unit, and the pressure cooker cannot start normally. This provides some protection for the pot lid 1, preventing damage to its internal components from starting the power supply if it is not properly installed. In other embodiments, other structures can be used to connect the control unit to the upper coupler 22 or the temperature probe 21, as long as the control unit receives timely feedback on whether the inner and outer lids 11 are successfully aligned.

[0057] Furthermore, the housings of the temperature probe 21, the lower coupler 23, and the bracket 24 are integrated into one unit. This integrated design allows the user to simultaneously remove the temperature probe 21, lower coupler 23, and bracket 24 when disassembling the inner cover 12, reducing contact with the temperature probe 21 and lower coupler 23 and preventing damage. Simultaneously, fewer disassembly or installation steps effectively prevent the loss of components due to an excessive number of parts. In other possible embodiments, the temperature probe 21, lower coupler 23, and bracket 24 can be installed separately, as long as they are easy to disassemble and do not affect normal use.

[0058] In this embodiment, the inner cover 12 has a through hole 3 in the vertical direction. The temperature probe 21 extends into the through hole 3, and the outer surface of the temperature probe 21 is sealed to the surface of the through hole 3 by a sealing element 4. The through hole 3 connects the detection part of the temperature probe 21 to the inside of the pot, allowing the temperature probe 21 to more accurately detect the temperature inside the pot. The sealing element 4 on the connection surface between the temperature probe 21 and the through hole 3 prevents high-temperature gas or water vapor inside the pot from entering the pot cover 1 through the through hole 3 during use, thus preventing damage to the components inside the pot cover 1.

[0059] Specifically, in this embodiment, as shown in Figures 1-2, the sealing element 4 has an annular structure and an annular protrusion. The outer shell of the temperature probe 21 has a corresponding annular groove structure. When the temperature probe 21 is installed, the protrusion of the sealing element 4 cooperates with the annular groove of the outer shell of the temperature probe 21 to achieve a seal. In other possible embodiments, the structure of the sealing element 4 and the way it cooperates with the temperature probe 21 are not specifically limited, as long as the sealing requirements of the inner cover 12 are met.

[0060] Furthermore, the inner cover 12 is also provided with a protective sleeve 5, which is connected to the lower part of the inner cover 12 and covers the temperature probe 21. The protective sleeve 5 is sandwiched between the sealing element 4 and the inner cover 12. The protective sleeve 5 effectively protects the portion of the temperature probe 21 that extends into the pot, preventing damage from impacts. Simultaneously, the protective sleeve facilitates the user's removal of the temperature probe 21; the user can grasp the protective sleeve and apply force to remove the temperature probe 21 from the inner cover 12, saving effort and reducing contact with the temperature probe 21. By placing the protective sleeve 5 between the inner cover 12 and the sealing element 4, the stability of the protective sleeve is improved, and no additional components are needed for connection, resulting in a simple structure and good effect. In other possible embodiments, other structures or other locations can also be provided to protect the temperature probe 21, as long as it serves a protective function.

[0061] In this embodiment, as shown in Figures 3-4, a weight 6 is provided on the outer cover 11, and a weight detection device 61 is provided on the inner cover 12. The weight detection device 61 includes a wireless strain sensor 611 and two elastic elements 612. The elastic elements 612 are located between the weight 6 and the wireless strain sensor 611, and are respectively arranged on both sides of the wireless strain sensor 611. The top of the weight 6 is made of metal and is fixed to the outer cover 11 by magnetic attraction. A ring magnet is fixed in the magnet groove of the outer cover 11 by glue to connect the weight 6. The weight 6 is aligned with the vent pipe of the pressure cooker. The magnet and weight 6 are used to control the pressure and venting of the pressure cooker. The weight detection device 61 is used to detect whether the weight 6 is placed horizontally to prevent safety problems caused by the weight 6 not being installed properly during use. The weight detection device 61 has a simple structure. The elastic element 612 is used to contact the bottom of the weight 6 to generate a deformation feedback voltage value. The wireless strain sensor 611 determines whether the weight 6 is installed correctly by detecting the difference in voltage values ​​between the elastic element 612 and the deformation feedback voltage value. In other possible embodiments, other detection methods or other sensors can also be used to detect the weight 6, as long as they can detect whether the weight 6 is installed correctly.

[0062] The pressure cooker includes a control unit (lid 1) and a wireless strain sensor (611) connected to it via radio frequency. The control unit can be used to start the pressure cooker. When the control unit receives correct feedback from the wireless strain sensor (611), it starts the power and begins cooking; when the control unit receives abnormal feedback from the wireless strain sensor (611), it cannot start the pressure cooker. This wireless connection eliminates the need for additional circuitry between the wireless strain sensor (611) and the control unit, effectively simplifying the connection and improving safety.

[0063] Specifically, the principle of the installation detection of the counterweight 6 is as follows: the voltage values ​​of the deformation feedback generated by the two elastic elements 612 are U1 and U2, respectively, the set safe voltage value is N, and the actual pressure difference value is M; if M < N, it is determined that the counterweight 6 is installed normally, and the control unit turns on the power and starts cooking; if M ≥ N, it indicates that the force is uneven at this time, the counterweight 6 is installed abnormally, and there is a possibility of air leakage, so the control unit provides abnormal feedback.

[0064] In this embodiment, as Figure 5 As shown, the inner cover 12 has a recessed reinforcing rib area 7, and the weight detection device 61 and the bracket 24 are connected to the reinforcing rib area 7. Adding a recessed structure to the inner cover 12 disperses stress, increases its structural strength, and prevents deformation during use, effectively protecting the sealing of the pot lid 1 and extending its service life. In other possible embodiments, other structures can be designed to reinforce the inner cover 12, as long as it does not affect the installation, removal, and use of other components of the pot lid 1.

[0065] In this embodiment, a pressure cooker is provided, such as Figure 6 As shown, the pressure cooker includes a lid 1 as described above, and also includes a pot body 8, which is connected to the lid 1.

[0066] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A lid for a pressure cooker, said lid comprising an inner lid and an outer lid, said outer lid being located above said inner lid, and said inner lid being detachably connected to said outer lid, characterized in that, The pot cover further comprises a temperature detection assembly, which comprises a temperature probe, a bracket, an upper coupler and a lower coupler, The temperature probe is fixed on the bracket, and the temperature probe is electrically connected with the lower coupler, and the temperature probe extends from the upper end of the inner cover to the lower end of the inner cover; The bracket is fixed on the inner cover, and the upper surface of the bracket is arranged in a raised manner relative to the inner cover; The lower coupler is fixed on the upper surface of the bracket; The upper coupler is fixed on the outer cover; The upper coupler and the lower coupler have shapes of mutually matched slots and pins, and have mutually matched circuit structures.

2. The lid of claim 1, wherein The pot cover comprises a control unit, which is electrically connected with the circuit structure of the upper coupler.

3. The lid of claim 1, wherein The shell of the temperature probe, the shell of the lower coupler and the bracket are formed in one piece.

4. The lid of claim 1 wherein, The inner cover is provided with a through hole in the vertical direction, the temperature probe extends into the through hole, and the outer surface of the temperature probe and the surface of the through hole are sealed by a sealing element.

5. The lid of claim 1 wherein, The inner cover is further provided with a protective sleeve, which is connected to the lower part of the inner cover, and the protective sleeve is arranged around the temperature probe.

6. The lid of claim 4 wherein, The inner cover is further provided with a protective sleeve, which is connected to the lower part of the inner cover, and the protective sleeve is arranged around the temperature probe, and the protective sleeve is clamped between the sealing element and the inner cover.

7. The lid of claim 1 wherein, The outer cover is provided with a weight, and the inner cover is provided with a weight detection device, the weight detection device comprises a wireless strain sensor and at least two elastic members, the elastic members are located between the weight and the wireless strain sensor, and the elastic members are arranged on both sides of the wireless strain sensor.

8. The lid of claim 7, wherein The pot cover comprises a control unit, and the wireless strain sensor is radio frequency connected with the control unit.

9. The lid of claim 7, wherein The inner cover is formed with a concave reinforcing rib area, and the weight detection device and the bracket are connected to the reinforcing rib area.

10. A pressure cooker characterized by The pressure cooker comprises the pot cover according to any one of claims 1-9, and further comprises a pot body connected with the pot cover.

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