Pressure switch and household appliance

Abstract

The utility model discloses a pressure switch and a household electrical appliance, the pressure switch comprises a connecting piece, an adjusting piece and a switch, the connecting piece is connected with the adjusting piece and the switch, the adjusting piece is movably connected with the connecting piece, the adjusting piece adjusts the relative position with the connecting piece when moving, and the switch is connected with the adjusting piece when moving. The relative position is related to the closing and opening opportunities of the switch. According to the pressure switch, the closing and opening time of the switch is adjusted by adjusting the relative position of the adjusting piece and the connecting piece when the adjusting piece moves, so that the control function of the pressure switch can be realized, meanwhile, the number of parts is reduced, the assembly difficulty is reduced, and the product quality is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a pressure switch and a household appliance. Background Art

[0002] In the related art, the pressure regulating switch used in cooking products controls the pressure by adjusting the positions of the upper positioning pin and the lower positioning pin. During production, the upper positioning pin and the lower positioning pin need to be tested for pressure adjustment multiple times. The debugging process is cumbersome, and the assembly process requires multiple people and multiple positions to complete. There are also many links in the process where errors may occur, resulting in unstable product quality. Utility Model Content

[0003] The embodiment of the utility model provides a pressure switch and a household appliance to solve at least one of the above-mentioned technical problems.

[0004] A pressure switch according to an embodiment of the utility model comprises a connecting member, an adjusting member and a switch, wherein the connecting member connects the adjusting member and the switch, the adjusting member is movably connected to the connecting member, and the adjusting member adjusts the relative position with the connecting member when it moves, and the relative position is related to the closing and opening timing of the switch.

[0005] The above-mentioned pressure switch adjusts the closing and opening timing of the switch by adjusting the relative position of the adjusting member with the connecting member when the adjusting member moves, thereby realizing the control function of the pressure switch, while reducing the number of parts, reducing the difficulty of assembly, and ensuring product quality.

[0006] In some embodiments, the connecting member has an external thread, the adjusting member is provided with a threaded hole that matches the external thread, and the connecting member and the adjusting member are connected via threads.

[0007] In some embodiments, the connecting member has a self-locking slot, the adjusting member includes a marble, and the threaded hole is provided with a mounting slot. The marble is rotatably arranged in the mounting slot. When the adjusting member is installed on the connecting member, the marble is clamped in the self-locking slot to fix the connecting member and the adjusting member.

[0008] In some embodiments, a self-locking slot is provided in the wall of the threaded hole of the adjusting member, the connecting member includes a marble, the connecting member is provided with an installation slot, and the marble is rotatably arranged in the installation slot. When the adjusting member is installed on the connecting member, the marble is clamped in the self-locking slot to fix the connecting member and the adjusting member.

[0009] In some embodiments, the pressure switch includes a mounting base and a first spring sheet, the switch includes a first contact and a second contact, the first spring sheet is mounted on the mounting base, the end of the connecting member away from the adjusting member abuts against the first spring sheet, the first contact is arranged at one end of the first spring sheet, and the second contact is arranged on the mounting base, when the second contact contacts the first contact, the switch is closed, and when the second contact does not contact the first contact, the switch is opened.

[0010] In some embodiments, the mounting seat has a mounting hole, the connecting member passes through the mounting hole and contacts the first spring sheet, an angle ruler is arranged around the mounting hole, the end face of the adjusting member has a pointer, and the pointer and the angle ruler cooperate to indicate the rotation angle of the adjusting member.

[0011] In some embodiments, the mounting base includes a first terminal and a second terminal, the first terminal and the second terminal are fixedly mounted on the mounting base, the first terminal includes a support leg section and a first connecting section, the support leg section is connected to the first connecting section, the support leg section is fixedly connected to the first spring piece, the second terminal includes a mounting section and a second connecting section, the mounting section is connected to the second connecting section, and the second contact is arranged on the mounting section.

[0012] In some embodiments, the pressure switch also includes a second spring sheet, which is fixedly connected to the support leg section, and the bottom of the end of the connecting member away from the adjusting member contacts the first spring sheet so that the first spring sheet has a tendency to move in a first direction, and the second spring sheet presses the first spring sheet so that the first spring sheet has a tendency to move in a second direction, and the first direction is opposite to the second direction.

[0013] A household appliance according to an embodiment of the present utility model comprises the pressure switch described in any one of the above embodiments.

[0014] The household appliance can adjust the closing and opening timing of the switch by adjusting the relative position of the adjusting part with the connecting part when the adjusting part moves, thereby realizing the control function of the pressure switch, while reducing the number of parts, reducing the difficulty of assembly, and ensuring product quality.

[0015] In some embodiments, the household appliance further comprises a heating plate, and the pressure switch is connected to the heating plate.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 It is a schematic diagram of the structure of a pressure switch according to an embodiment of the utility model;

[0019] Figure 2 yes Figure 1 An enlarged schematic diagram of part a;

[0020] Figure 3 It is a top view of the pressure switch of the embodiment of the utility model;

[0021] Figure 4 is a side view of a pressure switch according to an embodiment of the utility model;

[0022] Figure 5 It is a structural schematic diagram of a connecting piece according to an embodiment of the utility model;

[0023] Figure 6 It is a schematic cross-sectional structure diagram of an adjusting member according to an embodiment of the utility model;

[0024] Figure 7 It is a bottom view of the adjusting member of the embodiment of the utility model;

[0025] Figure 8 It is a schematic structural diagram of a pressure switch and a trigger member according to an embodiment of the utility model.

[0026] Description of main component symbols:

[0027] Pressure switch 10, trigger member 11, connecting member 12, adjusting member 14, switch 16, threaded hole 17, self-locking slot 18, marble 20, mounting slot 22, mounting seat 24, first spring piece 26, first contact 28, second contact 30, pointer 33, angle ruler 34, support leg section 40, first connecting section 42, mounting section 44, second connecting section 46, second spring piece 48. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0030] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 or an electrical connection. It can be directly connected or indirectly connected 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 the present utility model can be understood according to specific circumstances.

[0031] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0032] The disclosure herein provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described herein. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0033] In the related art, the pressure regulating switch used in cooking products controls the pressure by the positions of the upper positioning pin and the lower positioning pin. During production, the upper positioning pin pressure adjustment needs to be done once, and the adjusting screw column and the adjusting insulating column need to be fixed by glue. When assembling the product, the lower positioning pin needs to be adjusted and fine-tuned with the heating plate, and then the adjusting screw column and the adjusting insulating column need to be fixed by glue. The entire debugging process is cumbersome and requires multiple people and multiple positions to complete the assembly. There are also many links in the process where errors may occur, resulting in unstable product quality.

[0034] See also Figure 1 and Figure 8 A pressure switch 10 according to an embodiment of the utility model includes a connecting member 12, an adjusting member 14 and a switch 16. The connecting member 12 connects the adjusting member 14 and the switch 16. The adjusting member 14 is movably connected to the connecting member 12. When the adjusting member 14 moves, it adjusts the relative position D with the connecting member 12. The relative position D is related to the closing and opening timing of the switch 16.

[0035] The pressure switch 10 adjusts the closing and opening timing of the switch 16 by adjusting the relative position D between the adjusting member 14 and the connecting member 12 when the adjusting member 14 moves, thereby realizing the control function of the pressure switch 10, while reducing the number of parts, reducing the difficulty of assembly, and ensuring product quality.

[0036] Specifically, the pressure switch 10 includes a connecting member 12, an adjusting member 14 and a switch 16, and the relative position D between the connecting member 12 and the adjusting member 14 can be adjusted by the adjusting member 14. The relative position D between the connecting member 12 and the adjusting member 14 affects the timing of closing and opening of the switch 16.

[0037] When the pressure switch 10 is installed on the device, the trigger member 11 of the device abuts against the adjusting member 14. When the pressure of the device reaches the set value of the pressure switch 10, the trigger member 11 can trigger the pressure switch 10 to close or open the pressure switch 10. The relative position D between the adjusting member 14 and the connecting member 12 is related to the pressure setting value of the pressure switch 10. The pressure setting value of the pressure switch 10 can be adjusted by adjusting the relative position D between the adjusting member 14 and the connecting member 12.

[0038] In some embodiments, the connecting member 12 has an external thread, the adjusting member 14 is provided with a threaded hole 17 that matches the external thread, and the connecting member 12 and the adjusting member 14 are connected by threads.

[0039] In this way, the adjusting member 14 and the connecting member 12 are connected via threads, and the relative position D between the two is adjusted by rotation.

[0040] Specifically, Figure 5 and Figure 6As shown, the connecting member 12 has an external thread, and the adjusting member 14 is provided with a threaded hole 17 that matches the external thread. During assembly, the connecting member 12 is screwed into the threaded hole 17 of the adjusting member 14, and the relative position D between the connecting member 12 and the adjusting member 14 is adjusted by rotation. Furthermore, after the relative position D between the connecting member 12 and the adjusting member 14 is adjusted to the right position, the connecting member 12 and the adjusting member 14 can be fixed by gluing to prevent the connection between the connecting member 12 and the adjusting member 14 from being loosened.

[0041] In some embodiments, the connecting member 12 has a self-locking slot 18, the adjusting member 14 includes a marble 20, and a mounting slot 22 is provided in the threaded hole 17. The marble 20 is rotatably disposed in the mounting slot 22. When the adjusting member 14 is installed to the connecting member 12, the marble 20 is locked in the self-locking slot 18 to fix the connecting member 12 and the adjusting member 14.

[0042] In this way, the connection between the adjusting member 14 and the connecting member 12 can be made stable and reliable.

[0043] Specifically, Figure 5 and Figure 6 As shown, when the adjusting member 14 is installed to the connecting member 12, the marble 20 in the adjusting member 14 is stuck in the self-locking slot 18 of the connecting member 12. When the adjusting member 14 is movable relative to the connecting member 12 to adjust the relative position D between the two, the marble 20 can move relative to the self-locking slot 18 without affecting the movement of the adjusting member 14. When the relative position D between the adjusting member 14 and the connecting member 12 is adjusted to the right position, the marble 20 is stuck in the self-locking slot 18, and the connecting member 12 and the adjusting member 14 can be fixed. Therefore, the adjusting member and the connecting member can be fixed to each other after adjusting the relative position D without additionally using adhesive bonding or other fixing methods, and the installation is simple and convenient.

[0044] In some embodiments, a self-locking slot 18 is provided in the wall of the threaded hole 17 of the adjusting member 14, the connecting member 12 includes a marble 20, the connecting member 12 is provided with a mounting groove 22, and the marble 20 is rotatably arranged in the mounting groove 22. When the adjusting member 14 is installed to the connecting member 12, the marble 20 is locked in the self-locking slot 18 to fix the connecting member 12 and the adjusting member 14.

[0045] In this way, the connection between the adjusting member 14 and the connecting member 12 can be made stable and reliable.

[0046] Specifically, when the adjusting member 14 is mounted to the connecting member 12, the marble 20 in the connecting member 12 is stuck in the self-locking slot 18 of the adjusting member 14. When the adjusting member 14 is movable relative to the connecting member 12 to adjust the relative position D between the two, the marble 20 can move relative to the self-locking slot 18 without affecting the movement of the adjusting member 14. When the relative position D between the adjusting member 14 and the connecting member 12 is adjusted to the right position, the marble 20 is stuck in the self-locking slot 18, and the connecting member 12 and the adjusting member 14 can be fixed.

[0047] In some embodiments, the pressure switch 10 includes a mounting base 24, a first spring clip 26, and the switch 16 includes a first contact 28 and a second contact 30. The first spring clip 26 is mounted on the mounting base 24, and the end of the connecting member 12 away from the adjusting member 14 contacts the first spring clip 26. The first contact 28 is arranged at one end of the first spring clip 26, and the second contact 30 is arranged on the mounting base 24. When the second contact 30 contacts the first contact 28, the switch 16 is closed, and when the second contact 30 does not contact the first contact 28, the switch 16 is disconnected.

[0048] In this way, by controlling the contact state of the contact point, the on / off state of the switch 16 can be controlled.

[0049] Specifically, Figure 1 and Figure 2 As shown, the adjusting member 14 and the connecting member 12 are installed on the mounting seat 24, the adjusting member 14 is installed at one end of the connecting member 12, and the other end of the connecting member 12 abuts against the first elastic sheet 26. After the adjusting member 14 is movably adjusted to the relative position D with the connecting member 12, the adjusting member 14 and the connecting member 12 can move relative to the mounting seat 24 in the up-down direction. When the pressure switch 10 is installed on the use device, the trigger member 11 of the use device abuts against the adjusting member 14 at one end away from the connecting member 12. When the pressure of the use device reaches the trigger condition, the trigger member 11 presses the adjusting member 14 and the connecting member 12 downward, and the end of the connecting member 12 abuts against the first elastic sheet 26 to apply downward pressure to the first elastic sheet 26, so that the first contact 28 and the second contact 30 are separated, and the switch 16 is disconnected; when the pressure of the use device does not reach the trigger condition, the trigger member 11 has no downward trigger pressure, the adjusting member 14 and the connecting member 12 return to the initial state, and the first elastic sheet 26 also returns to the initial state. The first contact 28 and the second contact 30 contact each other, and the switch 16 is closed.

[0050] In some embodiments, the mounting seat 24 has a mounting hole, the connecting member 12 passes through the mounting hole to abut against the first elastic piece 26, an angle ruler 34 is set around the edge of the mounting hole, and the end face of the adjusting member 14 has a pointer 33, and the pointer 33 and the angle ruler 34 cooperate to indicate the rotation angle of the adjusting member 14.

[0051] In this way, the rotation angle matches the triggering pressure of the pressure switch 10. During assembly, the pointer 33 and the angle ruler 34 can cooperate to indicate the rotation angle of the adjusting member 14. There is no need to measure the current pressure value of the pressure switch 10 multiple times, thereby simplifying the installation steps.

[0052] Specifically, Figure 3 As shown, a mounting hole is provided on the mounting seat 24, and the connecting member 12 is passed through the mounting hole. After the adjusting member 14 is installed in the mounting hole, the pointer 33 is adjusted to the corresponding position on the angle ruler 34 according to the position of the pointer 33 on the end face of the adjusting member 14 and the angle ruler 34 on the mounting seat 24, so that the relative position D of the adjusting member 14 and the connecting member 12 can be adjusted without multiple pressure tests, and the installation is simple and the process is few, which can save assembly time and reduce assembly difficulty.

[0053] In some embodiments, the mounting base 24 includes a first terminal and a second terminal, which are fixedly mounted on the mounting base 24, the first terminal includes a leg section 40 and a first connecting section 42, the leg section 40 is connected to the first connecting section 42, the leg section 40 is fixedly connected to the first spring piece 26, the second terminal includes a mounting section 44 and a second connecting section 46, the mounting section 44 is connected to the second connecting section 46, and the second contact 30 is arranged on the mounting section 44.

[0054] In this way, the first terminal and the second terminal are connected to the control circuit of the device, and the closing or opening of the pressure switch 10 can be controlled by the contact or disconnection state of the first contact 28 and the second contact 30 .

[0055] Specifically, Figure 1 and Figure 8 As shown, the first terminal and the second terminal are connected to the control circuit of the device. When the first contact 28 and the second contact 30 are in contact with each other, the switch 16 is closed and the control circuit is connected; when the first contact 28 and the second contact 30 are separated, the switch 16 is opened and the control circuit is disconnected.

[0056] When the pressure switch 10 is installed on the pressure cooking device, the first terminal and the second terminal are connected to the heating circuit of the pressure cooking device. In the initial state, the pressure switch 10 is closed, the heating circuit is connected, the pressure cooking device is heated, and the pressure in the inner pot rises. When the pressure in the inner pot reaches the preset value, the heating plate expands and presses down, causing the adjustment member 14 and the connecting member 12 to move downward, and the first contact 28 and the second contact 30 change from a state of mutual contact to a state of non-contact. At this time, the pressure switch 10 is disconnected, the heating circuit is disconnected, the inner pot stops heating, and the pressure drops. After the pressure drops, the heating plate shrinks, the adjustment member 14 and the connecting member 12 reset upward, and the first contact 28 and the second contact 30 contact each other. At this time, the pressure switch 10 is closed again and starts heating until the heating plate expands again to trigger the pressure switch 10.

[0057] In some embodiments, the pressure switch 10 also includes a second spring piece 48, which is fixedly connected to the support leg section 40. The bottom of the end of the connecting member 12 away from the adjusting member 14 contacts the first spring piece 26 so that the first spring piece 26 has a tendency to move in the first direction. The second spring piece 48 presses the first spring piece 26 so that the first spring piece 26 has a tendency to move in the second direction. The first direction is opposite to the second direction.

[0058] In this way, the second elastic sheet 48 has the functions of protection and reset.

[0059] Specifically, Figure 1 and Figure 8 As shown, the trigger member 11 needs to press down the adjusting member 14 and the connecting member 12 to switch the on-off state of the pressure switch 10. When the pressure value of the device reaches the preset pressure of the pressure switch 10, the trigger member 11 triggers the adjusting member 14 and the connecting member 12. The bottom of the connecting member 12 away from the adjusting member 14 contacts the first elastic sheet 26 so that the first elastic sheet 26 has a tendency to move in the first direction, and the second elastic sheet 48 contacts the first elastic sheet 26 so that the first elastic sheet 26 has a tendency to move in the second direction. Figure 1 As shown, the first direction is upward as shown in the figure, and the second direction is downward as shown in the figure.

[0060] When the downward force of the connecting member 12 is greater than the upward force of the second elastic sheet 48 on the first elastic sheet 26, the first elastic sheet 26 moves downward to separate the first contact 28 and the second contact 30. In this way, the first contact 28 and the second contact 30 are prevented from being separated when the set pressure of the pressure switch 10 is not reached, so that the second elastic sheet 48 has a protective effect and can ensure the accuracy of the on-off of the pressure switch 10.

[0061] When the downward force of the connecting member 12 is less than the upward force of the second elastic sheet 48 on the first elastic sheet 26, the first elastic sheet 26 moves upward to make the first contact 28 and the second contact 30 contact each other. In this way, the second elastic sheet 48 can quickly reset the first elastic sheet 26 without external force.

[0062] It should be noted that the up and down directions of the pressure switch 10 are related to its installation direction. The direction of the force applied by the adjusting member 14 and the connecting member 12 to separate the first contact 28 and the second contact 30 is the first direction, and the force applied by the second spring sheet 48 to the first spring sheet 26 is opposite to the first direction.

[0063] In summary, the pressure switch 10 adjusts the distance when the pressure switch 10 is pressed down by adjusting the relative position D with the connecting member 12 when the adjusting member 14 moves, thereby controlling the closing and opening timing of the switch 16, thereby realizing the control function of the pressure switch 10.

[0064] When the pressure switch 10 is mounted on the pressure cooking pot, it forms a pressure transmission relationship with the heating plate. By directly rotating the adjusting member 14 and cooperating with the angle ruler 34, the pressure of the first spring piece 26 can be accurately locked, thereby achieving a quick response and the required stable pressure to ensure the cooking effect of the product;

[0065] The existing pressure switch 10 has many parts and requires multiple manual pressure adjustment tests. Therefore, there are many variable factors in the precision control of the pressure switch 10, and the product pressure precision is low and uncontrollable. The pressure switch 10 provided in the embodiment of the utility model can solve the above problems, thereby reducing manual participation in the pressure detection process of the factory production process and laying the foundation for smart manufacturing factories.

[0066] Compared with the existing pressure switch 10 products, the pressure switch 10 has the following advantages: 1. The upper positioning needle pressure adjustment and lower positioning pressure adjustment designs are eliminated, and there is no need to make cumbersome adjustments. The use of pressure adjustment screws reduces the variable factors by half; 2. The upper and lower adjusting insulating columns (movable, need to be fixed with glue) are changed into a connecting part 12 (no need to glue) design, which reduces the variable factors by half; 3. The design of glue fixing screws after repeated pressure adjustment is changed to a self-locking design of the self-locking slot 18 and the marble 20 of the adjusting part 14 and the connecting part 12 (no need to glue), which reduces the variable factors; 4. The design of multiple electrode insulating sheets is changed to a design without electrode insulating sheets, which simplifies the design and makes processing and assembly easier.

[0067] A household appliance according to an embodiment of the present invention comprises the pressure switch 10 according to any one of the above embodiments.

[0068] The household appliance mentioned above adjusts the closing and opening timing of the switch 16 by adjusting the relative position D of the adjusting member 14 with the connecting member 12 when the adjusting member 14 moves, thereby realizing the control function of the pressure switch 10, while reducing the number of parts, reducing the difficulty of assembly, and ensuring product quality.

[0069] In some embodiments, the household appliance further comprises a heating plate, and the pressure switch 10 is connected to the heating plate.

[0070] In this way, the pressure switch 10 is connected to the electric hot plate, and the pressure of the household appliance can be controlled by the pressure switch 10.

[0071] Specifically, the pressure cooking pot includes an inner pot, an outer pot and a heating plate. The pressure switch 10 is installed in the outer pot of the cooking pot and abuts against the heating plate, and the heating plate is the trigger 11. The pressure switch 10 is connected to the heating circuit of the pressure cooking pot. In the initial state, the pressure switch 10 is closed, the heating circuit is connected, the pressure cooking device is heated, and the pressure in the inner pot rises. When the pressure in the inner pot reaches a preset value, the heating plate expands and presses down, so that the adjustment member 14 and the connecting member 12 move downward, and the first contact 28 and the second contact 30 change from a state of mutual contact to a state of non-contact. At this time, the pressure switch 10 is disconnected, the heating circuit is disconnected, the inner pot stops heating, and the pressure drops. After the pressure drops, the heating plate shrinks, the adjustment member 14 and the connecting member 12 reset upward, the first contact 28 and the second contact 30 contact each other, and at this time, the pressure switch 10 is closed again and starts heating until the heating plate expands again to trigger the pressure switch 10. In this way, the pressure switch 10 can realize the maximum pressure control of the inner pot of the cooking pot.

[0072] It should be noted that the above explanation of the implementation method and beneficial effects of the pressure switch 10 is also applicable to household appliances used in the implementation method of the present application. To avoid redundancy, it will not be elaborated here.

[0073] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the utility model. 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 can be combined in any one or more embodiments or examples in a suitable manner.

[0074] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above implementation methods within the scope of the present invention.

Claims

1. A pressure switch for household appliances, characterized in that: The pressure switch includes a connecting member, an adjusting member and a switch, wherein the connecting member connects the adjusting member and the switch, and the adjusting member is movably connected to the connecting member. The pressure switch is configured to adjust the relative position of the adjusting member with the connecting member when the adjusting member is movable, and the relative position is related to the closing and opening timing of the switch.

2. The pressure switch according to claim 1, characterized in that: The connecting piece has an external thread, the adjusting piece is provided with a threaded hole matched with the external thread, and the connecting piece is connected to the adjusting piece through threads.

3. The pressure switch according to claim 2, characterized in that: The connecting member has a self-locking slot, the adjusting member includes a marble, and the threaded hole has a mounting slot. The marble is rotatably arranged in the mounting slot. When the adjusting member is installed on the connecting member, the marble is clamped in the self-locking slot to fix the connecting member and the adjusting member.

4. The pressure switch according to claim 2, characterized in that: A self-locking slot is provided on the wall of the threaded hole of the adjusting member, the connecting member includes a marble, and the connecting member is provided with an installation slot, the marble is rotatably arranged in the installation slot, and when the adjusting member is installed on the connecting member, the marble is clamped in the self-locking slot to fix the connecting member and the adjusting member.

5. The pressure switch according to claim 1, characterized in that: The pressure switch includes a mounting seat and a first spring sheet. The switch includes a first contact and a second contact. The first spring sheet is mounted on the mounting seat. An end of the connecting member away from the adjusting member abuts against the first spring sheet. The first contact is arranged at one end of the first spring sheet. The second contact is arranged at the mounting seat. When the second contact contacts the first contact, the switch is closed. When the second contact does not contact the first contact, the switch is opened.

6. The pressure switch according to claim 5, characterized in that: The mounting seat is provided with a mounting hole, the connecting member passes through the mounting hole and contacts the first elastic sheet, an angle ruler is arranged at the periphery of the mounting hole, the end face of the adjusting member is provided with a pointer, and the pointer and the angle ruler cooperate to indicate the rotation angle of the adjusting member.

7. The pressure switch according to claim 5, characterized in that: The mounting base includes a first terminal and a second terminal, the first terminal and the second terminal are fixedly mounted on the mounting base, the first terminal includes a support leg section and a first connecting section, the support leg section is connected to the first connecting section, the support leg section is fixedly connected to the first elastic sheet, the second terminal includes a mounting section and a second connecting section, the mounting section is connected to the second connecting section, and the second contact is arranged on the mounting section.

8. The pressure switch according to claim 7, characterized in that: The pressure switch also includes a second spring sheet, which is fixedly connected to the support leg section. The bottom of the end of the connecting member away from the adjusting member contacts the first spring sheet so that the first spring sheet has a tendency to move in a first direction. The second spring sheet presses the first spring sheet so that the first spring sheet has a tendency to move in a second direction. The first direction is opposite to the second direction.

9. A household appliance, characterized in that: A pressure switch comprising any one of claims 1 to 8.

10. The household appliance according to claim 9, characterized in that: The household appliance further comprises an electric heating plate, and the pressure switch is connected to the electric heating plate.

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