Pressure detection device for kitchen appliance and electric stewpot thereof

Abstract

The invention provides a pressure detection device for kitchen appliances and an electric stewpot thereof. The pressure detection device comprises an in-pot pressure measuring cylinder formed by combining a piezoelectric sealing seat and a pot body attaching seat which can be separated, and the top face of the pot body attaching seat is attached to the position, communicated with an exhaust valve, of the bottom face of a pot cover; the pressure transmission part is fixed on one side of the outer wall of the piezoelectric type sealing seat, and one end of the pressure transmission part is arranged in the piezoelectric type sealing seat in a penetrating mode and abuts against the piezoelectric type sealing seat; the pressure in the pot body can be detected at any time, meanwhile, the pressure transmission part can transmit detected pressure data to the outside of the pot body, the pressure data in the pot body can be observed at any time, and accurate detection of the pressure in the pot body is achieved.

Description

Technical Field

[0001] The invention relates to the field of pressure detection of kitchen appliances, and in particular to a pressure detection device for kitchen appliances and an electric stew pot thereof. Background Art

[0002] The pressure detection equipment of kitchen appliances is mainly used to monitor and control the pressure during the cooking process to ensure safety and improve cooking results. The pressure cookers used in the kitchen will be tested for their high-pressure resistance before production to ensure the safe use of the pressure cookers. Pressure cookers include electric stew pots. During use, the internal pressure of the electric stew pot will be released through the exhaust port, and when the pressure is too high, the high pressure in the pot will be discharged through the pressure relief valve.

[0003] When electric stew pots are produced, the pressure inside the pot needs to be tested. At the same time, the pressure relief valve and the exhaust valve body need to be adjusted according to the high pressure that the pot needs to bear, so as to ensure that the electric stew pot can guarantee high-pressure stewing of ingredients when in use. However, electric stew pots are extremely dangerous during high-pressure testing. The internal pressure of the electric stew pot cannot be accurately obtained during the testing process, and it is difficult to adjust the pressure in the pot. When the electric stew pot is subjected to extreme pressure testing, the sensor used for pressure detection is easily damaged, and the testing cost is very high.

[0004] Therefore, we make improvements on this and propose a pressure detection device for kitchen appliances and an electric stew pot thereof. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that the internal pressure of an existing electric stew pot is difficult to measure accurately, and the pressure detection sensor is easily damaged during the detection process, and the cost is very high.

[0006] In order to achieve the above-mentioned purpose of the invention, the present invention provides the following pressure detection device for kitchen appliances and an electric stew pot thereof to improve the above-mentioned problem.

[0007] The specific application is as follows:

[0008] An electric stew pot for use in a kitchen, comprising:

[0009] A pot body with a lower pot handle and an end pot handle connected to both sides of the outer wall;

[0010] The outer wall at the top of the pot body is fixed with annular pot cover buckle pieces distributed at equal intervals, and one side of the outer wall of the lower pot handle is provided with a pot handle combination groove;

[0011] An upper pot handle is connected to one side of the top surface and a pot cover is buckled on the top of the pot body;

[0012] A combined hook block is connected to one side of the bottom surface of the upper pot handle, and the combined hook block is slidably hooked on the inner side of the combined groove of the pot handle; an exhaust valve is connected to the side of the top surface of the pot cover away from the upper pot handle, a protective cap is sleeved on the outer side of the exhaust valve, a pressure relief valve is provided on one side of the exhaust valve, the exhaust valve and the pressure relief valve are both connected to the inside of the pot cover, and annular equidistantly distributed closing hooks are fixed to the bottom surface of the pot cover, a rubber sealing ring is provided on the inner side of the closing hook, the closing hook sliding hook is hung on the outer side of the pot cover buckling piece, and the rubber sealing ring is attached to the top surface of the pot body.

[0013] A pressure detection device for kitchen appliances, using an electric stew pot for kitchen as claimed in claim 1, comprising:

[0014] An in-pot pressure measuring cylinder formed by a detachable piezoelectric sealing seat and a pot body fitting seat, wherein the top surface of the pot body fitting seat is adsorbed and bonded to a position where the bottom surface of the pot cover is connected to the exhaust valve;

[0015] A pressure transmission part for piezoelectric conversion pressure transmission, wherein the pressure transmission part is fixed to one side of the outer wall of the piezoelectric sealing seat, and one end of the pressure transmission part is passed through the inside of the piezoelectric sealing seat and abuts against the piezoelectric sealing seat;

[0016] The outer wall is fitted to a recovery component that abuts against the bottom of the inner wall of the piezoelectric sealing seat;

[0017] Adjust the pot fixing frame supported on the inner wall of the pot body, the pot fixing frame is connected to the recovery component, the pressure in the pot body increases and drives the pressure measuring cylinder in the pot to apply pressure to the pressure transmission part, after the pressure transmission part is subjected to force, the pressure electric signal is converted and transmitted to the outside and presented on the instrument display screen, the pot cover is separated from the pot body under pressure, pulling the pot body fitting seat and the piezoelectric sealing seat to separate, the piezoelectric sealing seat and the pot body fitting seat are separated and stored in the pot body through the recovery component and the pot fixing frame, the pot cover is separated from the pot body and the pulling force when the pot cover is separated is measured by the pressure measuring cylinder in the pot.

[0018] As a preferred technical solution of the present application, a cross fixing frame is fixed to the top of the inner wall of the piezoelectric sealing seat, a ceramic block groove is opened at the center of the cross fixing frame, a wire threading groove is opened at one end of the inside of the cross fixing frame, and the other end of the wire threading groove extends to the outside of the piezoelectric sealing seat, an annular plug is fixed to the top surface of the piezoelectric sealing seat, a push rod is provided at the center of the piezoelectric sealing seat, and an annular equidistantly distributed limiting strips are fixed to the top surface of the push rod, and the limiting strips are inserted into the outer wall at the center of the cross fixing frame, a pressure seat is fixed to the top surface of the limit bar, a pressure block is fixed to the bottom surface of the pressure seat and the top surface of the push rod, and a push piece is fixed to the bottom end of the push rod, and the outer wall of the side of the push piece slides in a sealing manner on the inner wall of the piezoelectric sealing seat.

[0019] As a preferred technical solution of the present application, a sealing ring groove is provided on the bottom surface of the pot body fitting seat, the annular plug block is inserted into the sealing ring groove for sealing combination, and an annular rubber suction cup groove is provided on the top of the pot body fitting seat, a double-sided tape is adhered to the center of the inner wall of the rubber suction cup groove, and release paper is adhered to the surface of the double-sided tape.

[0020] As a preferred technical solution of the present application, the pressure transmission part includes a sealing protective box, which is fixed at one end of the wire threading groove extending to the outside of the piezoelectric sealing seat, and one end of the wire threading groove extends to the inside of the sealing protective box. A piezoelectric force sensor is fixed inside the sealing protective box, and a signal amplification module and a signal transmission module are connected to one side of the piezoelectric force sensor. A wire is connected to the other end of the piezoelectric force sensor, and the wire is passed through the wire threading groove. A piezoelectric ceramic piece is fixed at one end of the wire away from the sealing protective box, and the piezoelectric ceramic piece is embedded and fixed in the ceramic block groove, and the pressure block is fitted and abutted against the surface of the piezoelectric ceramic piece.

[0021] As a preferred technical solution of the present application, the pressure transmission unit also includes a data display, a signal receiving module is provided inside the data display, which is electrically connected to the signal transmission module, the signal receiving module is connected to a signal conversion module, a display panel is provided on the upper front of the data display, the signal conversion module is electrically connected to the display panel, and an operation button is provided on the lower front of the pressure transmission unit.

[0022] As a preferred technical solution of the present application, the recovery component includes a sealing block, which is located at the bottom inner side of the piezoelectric sealing seat, and the outer wall of the sealing block slides and seals on the inner wall of the piezoelectric sealing seat. A T-shaped receiving rod is fixed on the top surface of the sealing block, and a clamping groove is provided at the center of the bottom surface of the push piece. The T-shaped receiving rod is clamped in the clamping groove, and relative annular grooves are provided on the outer side of the top surface of the sealing block and the outer side of the bottom surface of the push piece. A sealing ring is fitted in the annular groove, and the outer wall of the sealing ring slides and fits on the inner wall of the piezoelectric sealing seat.

[0023] As a preferred technical solution of the present application, a recovery wire is fixed at the center of the bottom surface of the sealing block, the other end of the recovery wire is connected to an upper combination head, and a threaded hole is provided at the center of one end of the upper combination head away from the recovery wire.

[0024] As a preferred technical solution of the present application, the fixing frame inside the pot includes a center plate, the top surface of the center plate is fixed with steel wire hooks distributed in an annular manner and at equal intervals, a lower steel wire is fixed at the center of the top surface of the center plate, the other end of the lower steel wire is connected to a lower combination head, and a threaded strip is fixed at one end of the lower combination head away from the lower steel wire, and the threaded strip is threadedly screwed on the inner side of the threaded hole.

[0025] As a preferred technical solution of the present application, a circularly equidistantly distributed threaded rod is fixed to the side surface of the outer wall of the center piece, the threaded rod is distributed in a cross shape, a square hole is opened at the center of the threaded rod, a pot wall support bar is provided at the end of the threaded rod away from the center piece, a horizontal axis is connected to the center of the side of the pot wall support bar close to the threaded rod, a limiting ring is fixed to the outer wall of one end of the horizontal axis connected to the pot wall support bar, a square bar is connected to the end of the horizontal axis away from the pot wall support bar, a hexagonal sleeve is sleeved on the outside of the horizontal axis, a limiting rotation groove is provided at one end of the hexagonal sleeve, the limiting rotation groove is limitedly sleeved on the outside of the limiting ring, the end of the hexagonal sleeve away from the limiting rotation groove is sleeved on the outside of the threaded rod, the hexagonal sleeve is threadedly screwed to the threaded rod, and the square bar is inserted into the inner wall of the square hole.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] In the scheme of the present application: through the pressure measuring cylinder inside the pot connected below the exhaust valve in the pot lid, the pot body can apply pressure to the pressure measuring cylinder inside the pot through the pressure inside the pot, thereby realizing real-time detection of the internal pressure of the pot body. At the same time, the pressure transmission part can transmit the detected pressure data to the outside of the pot body, and the internal pressure data of the pot body can be observed at all times, thereby realizing accurate detection of the pressure inside the pot body. At the same time, when performing limit detection, the pot body and the pot lid are separated, and the pressure measuring cylinder inside the pot can be pulled back through the fixed frame inside the pot, thereby saving the cost required for pressure detection of kitchen appliances.

[0028] 1. The present invention is provided with an exhaust valve and a pressure relief valve above the pot cover, which can release the pressure inside the pot body through the exhaust valve, so that the inside of the pot body can maintain a constant pressure for a long time, and when the pressure increases, the high pressure is completely released through the pressure relief valve, thereby improving the safety of the pot body. At the same time, the exhaust valve and the pressure relief valve can also realize free control of the internal pressure of the pot body by replacing the valve body with different exhaust flow rates, thereby improving the cooking effect of the pot body.

[0029] 2. The present invention has an internal pressure measuring cylinder in the pot tightly connected to the inside of the exhaust valve of the pot cover. When the pressure inside the pot body is increased, the pot body releases the pressure to the outside to apply thrust to the push rod to push the piezoelectric ceramic piece, thereby realizing real-time detection of the pressure inside the pot body, while ensuring the detection accuracy and safety during the detection process.

[0030] 3. The present invention is provided with an internal pot fixing frame inside the pot body, which can fix the internal pot pressure measuring cylinder connected to the bottom surface of the pot cover by recycling the connection between the steel wires when the pot body is subjected to limit testing. When the pot cover is separated from the pot body, the internal pot pressure measuring cylinder can be recycled to reduce the testing cost. At the same time, the reverse pulling of the internal pot pressure measuring cylinder can also be used to test the pulling force when the pot cover is separated. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1A schematic diagram of the overall structure of a pressure detection device for kitchen appliances and an electric stew pot provided by the present invention;

[0032] Figure 2 for Figure 1 The schematic diagram of the structure of the pot body shown;

[0033] Figure 3 for Figure 1 The schematic structural diagram of the middle section of the pot body shown;

[0034] Figure 4 for Figure 3 The schematic diagram of the structure of the pot body is shown;

[0035] Figure 5 for Figure 4 The schematic diagram of the structure of the pressure measuring cylinder in the pot shown;

[0036] Figure 6 for Figure 5 The schematic structural diagram of the middle section of the pressure measuring cylinder in the pot shown;

[0037] Figure 7 for Figure 6 The schematic diagram of the structure of the piezoelectric sealing seat of the pressure measuring cylinder in the pot and the pot body fitting seat is exploded;

[0038] Figure 8 for Figure 7 The schematic diagram of the exploded and enlarged structure inside the piezoelectric sealing seat shown;

[0039] Fig. 9 for Figure 8 A schematic diagram of the structural breakdown of the recycling assembly shown;

[0040] Fig.10 for Figure 4 The schematic diagram of the structure of the pot fixing frame shown;

[0041] Fig.11 for Fig.10 The schematic diagram of the structure of the transmission of the circumferential pot wall support strip of the pot fixing frame shown;

[0042] Fig.12 Schematic diagram of the working process of the pressure transmission unit.

[0043] Indicated in the figure:

[0044] 1. Pot body; 11. Lower pot handle; 12. Top pot handle; 13. Pot cover buckle; 14. Pot handle combination slot;

[0045] 2. Pot cover; 21. Upper pot handle; 22. Combined hook block; 23. Exhaust valve; 24. Protective cap; 25. Pressure relief valve; 26. Closing hook; 27. Rubber sealing ring;

[0046] 3. Pressure measuring cylinder in the pot;

[0047] 31. Piezoelectric sealing seat; 311. Cross fixing frame; 312. Ceramic block slot; 313. Threading slot; 314. Annular plug; 315. Ejector rod; 316. Limiting strip; 317. Pressing seat; 318. Pressing block; 319. Pushing piece;

[0048] 32. Pot body fitting seat; 321. Sealing ring groove; 322. Rubber suction cup groove; 323. Double-sided sticker; 324. Release paper;

[0049] 4. Pressure transmission unit; 41. Sealing protection box; 42. Piezoelectric force sensor; 43. Signal amplification module; 44. Signal transmission module; 45. Wire; 46. Piezoelectric ceramic sheet; 47. Data display; 471. Signal receiving module; 472. Signal conversion module; 473. Display panel; 474. Operation button;

[0050] 5. Recovery assembly; 51. Sealing block; 52. T-shaped receiving rod; 53. Clamping groove; 54. Ring groove; 55. Sealing ring; 56. Recovery wire; 57. Upper assembly head; 58. Threaded hole;

[0051] 6. Pot fixing frame; 61. Center piece; 611. Steel wire hook; 612. Lower steel wire; 613. Lower combination head; 614. Threaded strip;

[0052] 62. Threaded rod; 63. Square hole; 64. Pot wall support bar; 65. Horizontal axis; 66. Limiting ring; 67. Square bar; 68. Hexagonal sleeve; 69. Limiting groove. DETAILED DESCRIPTION

[0053] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0054] As described in the background art, it is difficult to accurately measure the internal pressure of an electric stew pot, and the pressure detection sensor is easily damaged during the detection process, which is very costly.

[0055] In order to solve this technical problem, the present invention provides a pressure detection device for kitchen appliances and an electric stew pot thereof, which are applied to real-time and accurate measurement of the internal pressure of kitchen appliances and electric stew pots, and can ensure the safety of the detection equipment when detecting the limit pressure.

[0056] Specifically, please refer to Figure 1-Figure 12 , the pressure detection device for kitchen appliances specifically comprises:

[0057] The pot pressure measuring cylinder 3 is formed by a detachable piezoelectric sealing seat 31 and a pot body fitting seat 32, wherein the top surface of the pot body fitting seat 32 is adsorbed and bonded to the position where the bottom surface of the pot cover 2 is connected to the exhaust valve 23;

[0058] A pressure transmission part 4 for piezoelectric conversion pressure transmission, wherein the pressure transmission part 4 is fixed to one side of the outer wall of the piezoelectric sealing seat 31, and one end of the pressure transmission part 4 is passed through the inside of the piezoelectric sealing seat 31 and abuts against the piezoelectric sealing seat 31;

[0059] The outer wall is fitted to the recovery component 5 which is abutted against the bottom of the inner wall of the piezoelectric sealing seat 31;

[0060] Adjust the pot fixing frame 6 supported on the inner wall of the pot body 1, the pot fixing frame 6 is combined and connected with the recovery component 5, the pressure in the pot body increases and drives the pot pressure measuring cylinder 3 to apply pressure to the pressure transmission part 4, the pressure transmission part 4 converts the pressure electric signal after the force is applied and transmits it to the outside and presents it on the instrument display screen, the pot cover 2 is separated from the pot body 1 under the pressure, pulling the pot body fitting seat 32 to separate from the piezoelectric sealing seat 31, the piezoelectric sealing seat 31 is separated from the pot body fitting seat 32 and is stored in the pot body 1 through the recovery component 5 and the pot fixing frame 6, the pot cover 2 is separated from the pot body 1 and the pulling force of the pot cover 2 when separated is measured by the pot pressure measuring cylinder 3.

[0061] The pressure detection device for kitchen appliances and the electric stew pot thereof provided by the present invention can, through the in-pot pressure measuring cylinder 3 connected below the exhaust valve 23 in the pot cover 2, allow the pot body 1 to apply pressure to the in-pot pressure measuring cylinder 3 through the in-pot pressure to achieve real-time detection of the internal pressure of the pot body 1 during pressure detection. At the same time, the pressure transmission part 4 can transmit the detected pressure data to the outside of the pot body 1, so that the internal pressure data of the pot body 1 can be observed at all times, and accurate detection of the pressure inside the pot body 1 can be achieved. At the same time, when performing limit detection, the pot body 1 is separated from the pot cover 2, and the in-pot pressure measuring cylinder 3 can be pulled back by the in-pot fixing frame 6, thereby saving the cost required for pressure detection of kitchen appliances.

[0062] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0063] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0064] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0065] Example 1

[0066] Please refer to Figure 1-Figure 12 , a pressure detection device for kitchen appliances, a cross fixing frame 311 is fixed to the top of the inner wall of the piezoelectric sealing seat 31, a ceramic block groove 312 is opened at the center of the cross fixing frame 311, a threading groove 313 is opened at one end of the cross fixing frame 311, and the other end of the threading groove 313 extends to the outside of the piezoelectric sealing seat 31, a ring-shaped plug block 314 is fixed to the top surface of the piezoelectric sealing seat 31, a push rod 315 is provided at the center of the piezoelectric sealing seat 31, and a ring-shaped equidistantly distributed limiting strip 316 is fixed to the top surface of the push rod 315, and the limiting strip 316 is inserted into the outer wall at the center of the cross fixing frame 311, and a pressure seat 317 is fixed to the top surface of the limiting strip 316, and a pressure block 318 is fixed to the bottom surface of the pressure seat 317 and the top surface of the push rod 315, and a push piece 319 is fixed to the bottom end of the push rod 315, and the outer wall of the side of the push piece 319 is sealed and slid on the inner wall of the piezoelectric sealing seat 31.

[0067] A sealing ring groove 321 is provided on the bottom surface of the pot body fitting seat 32, and the annular plug block 314 is inserted into the sealing ring groove 321 to form a sealing combination. An annular rubber suction cup groove 322 is provided on the top of the pot body fitting seat 32, and a double-sided sticker 323 is attached to the center of the inner wall of the rubber suction cup groove 322, and a release paper 324 is attached to the surface of the double-sided sticker 323.

[0068] The pressure transmission part 4 includes a sealing protection box 41, which is fixed at one end of the wire threading groove 313 extending to the outside of the piezoelectric sealing seat 31, and one end of the wire threading groove 313 extends to the inside of the sealing protection box 41. A piezoelectric force sensor 42 is fixed inside the sealing protection box 41, and a signal amplification module 43 and a signal transmission module 44 are connected to one side of the piezoelectric force sensor 42. A wire 45 is connected to the other end of the piezoelectric force sensor 42, and the wire 45 is passed through the wire threading groove 313. A piezoelectric ceramic piece 46 is fixed at one end of the wire 45 away from the sealing protection box 41. The piezoelectric ceramic piece 46 is embedded and fixed in the ceramic block groove 312, and the pressure block 318 is fitted and abutted against the surface of the piezoelectric ceramic piece 46.

[0069] The pressure transmission unit 4 also includes a data display instrument 47, and a signal receiving module 471 is provided inside the data display instrument 47, which is electrically connected to the signal transmission module 44. The signal receiving module 471 is connected to a signal conversion module 472. A display panel 473 is provided above the front of the data display instrument 47. The signal conversion module 472 is electrically connected to the display panel 473. An operation button 474 is provided below the front of the pressure transmission unit 4.

[0070] The exhaust valve 23 of the pot cover 2 is fitted with an in-pot pressure measuring cylinder 3, which can release the pressure to the outside through the pot body 1 to exert thrust on the push rod 315 to push the piezoelectric ceramic piece 46 when the pressure inside the pot body 1 is increased, thereby realizing real-time detection of the pressure inside the pot body 1 and ensuring the detection accuracy and safety during the detection process.

[0071] Example 2

[0072] The pressure detection device for kitchen appliances provided in Example 1 is further optimized. Specifically, Figure 1-Figure 12 The recovery component 5 includes a sealing block 51, which is located at the bottom inner side of the piezoelectric sealing seat 31. The outer wall of the sealing block 51 is slidably sealed on the inner wall of the piezoelectric sealing seat 31. A T-shaped receiving rod 52 is fixed on the top surface of the sealing block 51. A clamping groove 53 is provided at the center of the bottom surface of the push piece 319. The T-shaped receiving rod 52 is clamped in the clamping groove 53. Relative annular grooves 54 are provided on the outer side of the top surface of the sealing block 51 and the outer side of the bottom surface of the push piece 319. A sealing ring 55 is sleeved inside the annular groove 54. The outer wall of the sealing ring 55 is slidably sealed on the inner wall of the piezoelectric sealing seat 31.

[0073] A recovery wire 56 is fixed at the center of the bottom surface of the sealing block 51 . The other end of the recovery wire 56 is connected to an upper assembly head 57 . A threaded hole 58 is formed at the center of one end of the upper assembly head 57 away from the recovery wire 56 .

[0074] The pot fixing frame 6 includes a center plate 61, and a circular equidistantly distributed steel wire hook 611 is fixed on the top surface of the center plate 61. A lower steel wire 612 is fixed at the center of the top surface of the center plate 61. The other end of the lower steel wire 612 is connected to a lower combination head 613. A threaded strip 614 is fixed to the end of the lower combination head 613 away from the lower steel wire 612. The threaded strip 614 is screwed on the inner side of the threaded hole 58.

[0075] The outer wall side of the center piece 61 is fixed with annular threaded rods 62 distributed equidistantly, and the threaded rods 62 are distributed in a cross shape. A square hole 63 is opened at the center of the threaded rod 62, and a pot wall support bar 64 is provided at the end of the threaded rod 62 away from the center piece 61. A transverse axis 65 is connected to the center of the side of the pot wall support bar 64 close to the threaded rod 62. A limiting ring 66 is fixed to the outer wall of one end of the transverse axis 65 connected to the pot wall support bar 64, and a square bar 67 is connected to the end of the transverse axis 65 away from the pot wall support bar 64. A hexagonal sleeve 68 is sleeved on the outer side of the transverse axis 65, and a limiting rotation groove 69 is provided at one end of the hexagonal sleeve 68. The limiting rotation groove 69 is limitedly sleeved on the outer side of the limiting ring 66, and the end of the hexagonal sleeve 68 away from the limiting rotation groove 69 is sleeved on the outer side of the threaded rod 62. The hexagonal sleeve 68 is threadedly screwed to the threaded rod 62, and the square bar 67 is inserted into the inner wall of the square hole 63.

[0076] An internal pot fixing frame 6 is provided inside the pot body 1. When the pot body 1 is subjected to an extreme test, the internal pot pressure measuring cylinder 3 connected to the bottom surface of the pot cover 2 can be fixed by recovering the connection between the steel wires 56. When the pot cover 2 is separated from the pot body 1, the internal pot pressure measuring cylinder 3 can be recovered to reduce the testing cost. At the same time, by utilizing the reverse pulling of the internal pot pressure measuring cylinder 3, the pulling force when the pot cover 2 is separated can also be tested.

[0077] Example 3

[0078] Please refer to Figure 1-Figure 12 , the electric stew pot used in the kitchen specifically includes:

[0079] A pot body 1 having a lower pot handle 11 and an end pot handle 12 connected to both sides of the outer wall;

[0080] The outer wall of the top of the pot body 1 is fixed with an annular pot cover buckle piece 13 which is evenly distributed, and one side of the outer wall of the lower pot handle 11 is provided with a pot handle combination groove 14;

[0081] An upper pot handle 21 is connected to one side of the top surface and is buckled onto a pot cover 2 on the top of the pot body 1;

[0082] A combined hook block 22 is connected to one side of the bottom surface of the upper pot handle 21, and the combined hook block 22 is slidably hooked on the inner side of the pot handle combined groove 14. An exhaust valve 23 is connected to the side of the top surface of the pot cover 2 away from the upper pot handle 21, and a protective cap 24 is sleeved on the outer side of the exhaust valve 23. A pressure relief valve 25 is provided on one side of the exhaust valve 23. The exhaust valve 23 and the pressure relief valve 25 are both connected to the inside of the pot cover 2. An annular and equidistantly distributed closing hook 26 is fixed to the bottom surface of the pot cover 2, and a rubber sealing ring 27 is provided on the inner side of the closing hook 26. The closing hook 26 is slidably hooked on the outer side of the pot cover buckling piece 13, and the rubber sealing ring 27 is attached to the top surface of the pot body 1.

[0083] The present invention is provided with an exhaust valve 23 and a pressure relief valve 25 above the pot cover 2, and the exhaust valve 23 can release the pressure inside the pot body 1, so that the inside of the pot body 1 can maintain a constant pressure for a long time, and when the pressure increases, the high pressure is completely released through the pressure relief valve 25, thereby improving the safety of the pot body 1. At the same time, the exhaust valve 23 and the pressure relief valve 25 can also realize free control of the internal pressure of the pot body 1 by replacing the valve body with different exhaust flow rates, thereby improving the cooking effect of the pot body 1.

[0084] The use process of the pressure detection device for kitchen appliances and the electric stew pot provided by the present invention is as follows:

[0085] Detecting the internal limit pressure of the electric stew pot or pressure cooker (when detecting the limit pressure, the pressure relief valve 25 is in a completely closed state):

[0086] The pot cover 2 is rotated to separate the combined hook block 22 at the bottom of the upper pot handle 21 from the pot handle combined groove 14 opened on one side of the lower pot handle 11. At the same time, as the pot cover 2 is rotated, the closing hook 26 on the bottom surface of the pot cover 2 will separate from the pot cover 2 buckling piece 13 of the pot body 1. At this time, the pot cover 2 can be separated from the pot body 1 through the upper pot handle 21.

[0087] After the pot body 1 is separated from the pot cover 2 , the pot fixing frame 6 is placed inside the pot body 1 , and the installation position of the pot fixing frame 6 can be adjusted according to the length of the recovery steel wire 56 .

[0088] When installing the fixing frame 6 in the pot, the eccentric position of the center piece 61 can be changed according to the position of the exhaust valve 23 on the bottom surface of the pot cover 2. When the fixing frame 6 in the pot is fixed to the inner wall of the pot body 1, the hexagonal sleeves 68 on both sides of the center piece 61 can be rotated synchronously to make the hexagonal sleeves 68 engage with the threaded rod 62, thereby pushing the limit ring 66 connected to the other end of the hexagonal sleeve 68 to move. The movement of the limit ring 66 will drive the horizontal axis 65 to move, and the movement of the horizontal axis 65 will simultaneously drive the square bar 67 and the pot wall support bar 64 to move. By synchronously rotating the hexagonal sleeve 68, the pot wall support bars 64 on both sides can be moved in one direction synchronously to achieve the eccentric position adjustment of the center piece 61. When the position adjustment of the center piece 61 is completed, the hexagonal sleeves 68 on both sides are rotated at the same time to make the hexagonal sleeves 68 on both sides rotate in the opposite direction, and the pot wall support bars 64 on both sides can be driven to slide to both sides by the hexagonal sleeves 68. At this time, the pot wall support bars 64 can support the inner wall of the pot body 1 through synchronous reverse movement.

[0089] When the pot wall support strips 64 on both sides are fixed, rotate the other two sides to support the four ends of the inner wall of the pot body 1, and the connection of the pot internal fixing frame 6 can be completed. The pot internal fixing frame 6 can support the pot body 1 to improve the strength of the pot body 1 during the inspection process.

[0090] After the installation of the pot fixing frame 6 is completed, the pot body 1 fitting seat of the pot pressure measuring cylinder 3 is taken out, the release paper 324 is torn off, and the side of the pot body 1 fitting seat with the rubber suction cup groove 322 is pressed on the bottom surface of the pot cover 2 connected to the through hole of the exhaust valve 23. The air inside the rubber suction cup groove 322 can be discharged by pressing, and the pot body 1 fitting seat is adsorbed on the bottom of the exhaust valve 23 by using the rubber suction cup groove 322. At this time, as the inner wall of the rubber suction cup groove 322 is attached to the bottom surface of the pot cover 2, the double-sided sticker 323 will be adhered to the bottom surface of the pot cover 2 by its own adhesive.

[0091] Then, the recovery steel wire 56 on the bottom surface of the recovery component 5 inside the piezoelectric sealing seat 31 is connected to the lower combination head 613 through the upper combination head 57. When connecting, the threaded strip 614 of the lower combination head 613 is rotated and locked inside the threaded hole 58 to complete the fixation of the upper and lower steel wires. Then, the annular plug block 314 on the top surface of the piezoelectric sealing seat 31 is inserted into the groove 54321 of the sealing ring 55 to complete the sealing connection and fixation of the pressure measuring cylinder 3 in the pot.

[0092] At this time, the pot cover 2 is closed on the pot body 1, and the pot cover 2 is rotated so that the closing hook 26 at the bottom end of the pot cover 2 overlaps with the pot cover 2 buckle piece 13, and the combination hook block 22 is hooked inside the pot handle combination groove 14, so that the pot cover 2 and the pot body 1 can be closed.

[0093] Take out the data display device 47 and add batteries to ensure that the circuit inside the data display device 47 is powered.

[0094] If the pot body 1 is an electric stew pot or a pressure cooker with electric heating, the pot body 1 can be directly started to heat the water source added inside the pot body 1. If the pot body 1 is not equipped with electric heating, the pot body 1 can be heated by other means to heat the internal water source to generate steam pressure.

[0095] As the pot body 1 is heated, the temperature of the water source inside the pot body 1 increases and the water gradually evaporates into steam, increasing the pressure inside the pot body 1. Since the exhaust valve 23 is blocked and closed by the pressure measuring cylinder 3 in the pot, the pressure in the pot will continue to increase. When the pressure in the pot increases and is able to apply pressure to the sealing block 51, the sealing block 51 will be pushed by the thrust to push the sealing ring 55, so that the inner wall of the piezoelectric sealing seat 31 is completely closed with the pot. At this time, as the sealing block 51 is forced to move, it will move upward and fit with the push piece 319. At this time, the push piece 319 will be pushed by the pressure to push the push rod 315 upward. The upward movement of the push rod 315 will simultaneously drive the limit strip 316, the pressure seat 317 and the pressure block 318 to move upward. The pressure block 318 moves upward because it abuts against the surface of the piezoelectric ceramic sheet 46, and the pressure block 318 will apply the pressure it receives to the piezoelectric ceramic sheet 46.

[0096] When the piezoelectric ceramic piece 46 is subjected to pressure, electricity is generated and transmitted through the wire 45 to the inside of the piezoelectric force sensor 42, so that the piezoelectric force sensor 42 converts electricity into pressure, and converts pressure into an electrical signal. The signal is amplified by the signal amplification module 43, and finally the signal is transmitted to the signal receiving module 471 inside the data display 47 through the signal transmission module 44. At this time, the signal receiving module 471 transmits the signal to the signal conversion module 472, and the signal is converted by the signal conversion module 472 into data that can be displayed inside the display panel 473. At this time, the pressure inside the pot body 1 can be known in real time by observing the display panel 473.

[0097] As the internal pressure of the pot body 1 increases, when the pot body 1 reaches the limit pressure, the pot body 1 will be deformed, causing the pot cover 2 to be separated from the pot body 1 under pressure. At this time, the data displayed by the data display instrument 47 is the limit pressure detection of the pot body 1.

[0098] When the pot body 1 and the pot cover 2 are separated, as the pot cover 2 moves up, the pot cover 2 will drive the pressure measuring cylinder 3 in the pot to move up synchronously. As the pressure measuring cylinder 3 in the pot moves up to the recovery wire 56 and the lower steel wire 612 are tightened, the recovery wire 56 will pull the piezoelectric sealing seat 31 to separate from the pot body 1 fitting seat, and the piezoelectric sealing seat 31 will be recovered. The pot body 1 fitting seat is a disposable item and only needs to be replaced for continued use next time.

[0099] During the recovery process of the piezoelectric sealing seat 31, since the piezoelectric sealing seat 31 is pulled by the recovery steel wire 56, the sealing block 51 will pull the push piece 319 through the T-shaped supporting rod 52, and pull the push rod 315 and the pressure block 318 through the push piece 319, so that the pressure block 318 applies pressure to the piezoelectric ceramic piece 46. At this time, the pressure borne by the piezoelectric ceramic piece 46 will be displayed on the display panel 473 of the data display instrument 47 through the pressure transmission part 4. This data is the impact destructive force generated by the separation of the pot cover 2.

[0100] By comparing the above-mentioned numerical values ​​of impact destructive force, the destructive force and use safety of various types of pot bodies 1 when damaged can be obtained.

[0101] When testing the impact destructive force of different types of pot lids 2, the recovery steel wire 56 and the lower steel wire 612 can be wound through the wire hook 611 to tighten the steel wire between the pressure measuring cylinder 3 in the pot and the fixing frame 6 in the pot. This can detect any type of pot lid 2 and is also applicable to the pot body 1 of the type that expands and opens slightly.

[0102] It should be noted that: depending on the different types of kitchen appliances such as pressure cookers and electric stew pots, the way of separating the pot cover 2 from the pot body 1 is different. Therefore, it is necessary to adjust the length of the recovery wire 56 between the pressure measuring cylinder 3 in the pot and the fixed frame 6 in the pot according to the type of pot body 1.

[0103] When testing the pressure of the exhaust valve 23 inside the pot body 1:

[0104] The pressure measuring cylinder 3 in the pot is adsorbed and bonded to the bottom of the pressure relief valve 25, and then the pot cover 2 is closed and the pot body 1 is started to heat, so that the pressure in the pot can be monitored in real time. When the pressure rises, the gas discharged from the exhaust valve 23 can be compared with the pressure generated in the pot, so as to accurately measure the exhaust valve 23 required for the pot body 1.

[0105] When pressure testing the pressure relief valve 25, the limit pressure of the pot body 1 can be used as a reference, and the pressure measuring cylinder 3 in the pot can be attached to the exhaust valve 23 position on the bottom surface of the pot cover 2. Then, as the pot body 1 is heated, the internal pressure of the pot body 1 increases. By observing the internal data of the data display instrument 47 and comparing it with the limit value, the type of pressure relief valve 25 required for the pot body 1 can be obtained, thereby realizing accurate numerical detection of various pot bodies 1.

[0106] When it is necessary to detect the internal pressure of the pot body 1 when the exhaust valve 23 and the pressure relief valve 25 are connected to the outside at the same time, a through hole can be opened above the pot cover 2, and the pressure measuring tube 3 in the pot can be attached to the bottom of the through hole. At this time, the pressure relief valve 25 can be tested while the exhaust valve 23 inside the pot body 1 is unobstructed. After the test is completed, the through hole can be closed.

[0107] In the present invention, 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 one; it can be a mechanical connection, an electrical connection, or communication with each other; 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, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0108] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific embodiments, or to perform equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of the present invention, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present invention.

Claims

1. An electric stew pot for kitchen, characterized in that: include: A pot body (1) having a lower pot handle (11) and an end pot handle (12) connected to both sides of the outer wall; The top outer wall of the pot body (1) is fixed with annular pot cover buckling pieces (13) distributed at equal intervals, and one side of the outer wall of the lower pot handle (11) is provided with a pot handle combination groove (14); A pot cover (2) is connected to one side of the top surface and is buckled onto the top of the pot body (1); A combined hook block (22) is connected to one side of the bottom surface of the upper pot handle (21), and the combined hook block (22) is slidably hooked on the inner side of the pot handle combined groove (14). A gas exhaust valve (23) is connected to the top surface of the pot cover (2) away from the upper pot handle (21), and a protective cap (24) is sleeved on the outer side of the gas exhaust valve (23). A pressure relief valve (25) is provided on one side of the gas exhaust valve (23), and the gas exhaust valve (23) and the pressure relief valve (25) are both connected to the inside of the pot cover (2). An annular equidistantly distributed closing hook (26) is fixed to the bottom surface of the pot cover (2), and a rubber sealing ring (27) is provided on the inner side of the closing hook (26). The closing hook (26) is slidably hooked on the outer side of the pot cover buckle plate (13), and the rubber sealing ring (27) is attached to the top surface of the pot body (1).

2. A pressure detection device for kitchen appliances, characterized in that: The electric stew pot used in the kitchen as claimed in claim 1 comprises: An in-pot pressure measuring cylinder (3) is formed by a combination of a detachable electric sealing seat (31) and a pot body fitting seat (32), wherein the top surface of the pot body fitting seat (32) is adsorbed and bonded to a position where the bottom surface of the pot cover (2) is connected to the exhaust valve (23); A pressure transmission part (4) for piezoelectric conversion pressure transmission, wherein the pressure transmission part (4) is fixed to one side of the outer wall of the piezoelectric sealing seat (31), and one end of the pressure transmission part (4) is inserted into the interior of the piezoelectric sealing seat (31) and abuts against the piezoelectric sealing seat (31); The outer wall of the recovery component (5) is in contact with the bottom of the inner wall of the piezoelectric sealing seat (31); The pot fixing frame (6) supported on the inner wall of the pot body (1) is adjusted. The pot fixing frame (6) is combined and connected with the recovery component (5). The pressure in the pot body increases and drives the pot pressure measuring cylinder (3) to apply pressure to the pressure transmission part (4). After the pressure is applied, the pressure transmission part (4) converts the pressure electric signal to the outside and displays it on the instrument display screen. The pot cover (2) is separated from the pot body (1) by the pressure and pulls the pot body fitting seat (32) to separate from the piezoelectric sealing seat (31). The piezoelectric sealing seat (31) is separated from the pot body fitting seat (32) and is stored in the pot body (1) through the recovery component (5) and the pot fixing frame (6). The pot cover (2) is separated from the pot body (1) and the pulling force when the pot cover (2) is separated is measured by the pot pressure measuring cylinder (3).

3. The pressure detection device for kitchen appliances according to claim 2, characterized in that: A cross fixing frame (311) is fixed on the top of the inner wall of the piezoelectric sealing seat (31), a ceramic block groove (312) is provided at the center of the cross fixing frame (311), a threading groove (313) is provided at one end of the inside of the cross fixing frame (311), and the other end of the threading groove (313) extends to the outside of the piezoelectric sealing seat (31), an annular plug (314) is fixed on the top surface of the piezoelectric sealing seat (31), and a push rod (315) is provided at the center of the piezoelectric sealing seat (31). The top surface of the push rod (315) is fixed with a ring-shaped limit strip (316) distributed evenly, and the limit strip (316) is inserted into the outer wall at the center of the cross fixing frame (311). The top surface of the limit strip (316) is fixed with a pressure seat (317), and the bottom surface of the pressure seat (317) and the top surface of the push rod (315) are fixed with a pressure block (318). The bottom end of the push rod (315) is fixed with a push piece (319), and the outer wall of the side of the push piece (319) is sealed and slid on the inner wall of the piezoelectric sealing seat (31).

4. The pressure detection device for kitchen appliances according to claim 3, characterized in that: The bottom surface of the pot body fitting seat (32) is provided with a sealing ring groove (321), the annular plug block (314) is inserted into the sealing ring groove (321) to form a sealing combination, the top of the pot body fitting seat (32) is provided with an annular rubber suction cup groove (322), the center of the inner wall of the rubber suction cup groove (322) is fitted with a double-sided sticker (323), and the surface of the double-sided sticker (323) is fitted with a release paper (324).

5. The pressure detection device for kitchen appliances according to claim 4, characterized in that: The pressure transmission part (4) comprises a sealing protection box (41), wherein the sealing protection box (41) is fixed at one end of the threading groove (313) extending to the outside of the piezoelectric sealing seat (31), and one end of the threading groove (313) extends to the inside of the sealing protection box (41). A piezoelectric force sensor (42) is fixed inside the sealing protection box (41), and one side of the piezoelectric force sensor (42) is connected to a signal amplification module (43) and a signal transmission module (44), and the other end of the piezoelectric force sensor (42) is connected to a wire (45), and the wire (45) is passed through the threading groove (313). A piezoelectric ceramic piece (46) is fixed at one end of the wire (45) away from the sealing protection box (41), and the piezoelectric ceramic piece (46) is embedded and fixed inside the ceramic block groove (312), and the pressure block (318) is fitted and abutted against the surface of the piezoelectric ceramic piece (46).

6. The pressure detection device for kitchen appliances according to claim 5, characterized in that: The pressure transmission unit (4) further comprises a data display instrument (47), wherein a signal receiving module (471) is provided inside the data display instrument (47) and is in electrical signal communication with the signal transmission module (44), wherein the signal receiving module (471) is connected to a signal conversion module (472), wherein a display panel (473) is provided above the front of the data display instrument (47), wherein the signal conversion module (472) is electrically connected to the display panel (473), and an operation button (474) is provided below the front of the pressure transmission unit (4).

7. The pressure detection device for kitchen appliances according to claim 3, characterized in that: The recovery component (5) comprises a sealing block (51), wherein the sealing block (51) is located at the bottom inner side of the piezoelectric sealing seat (31), the outer wall of the sealing block (51) is slidably sealed on the inner wall of the piezoelectric sealing seat (31), a T-shaped receiving rod (52) is fixed on the top surface of the sealing block (51), a clamping groove (53) is provided at the center of the bottom surface of the push piece (319), the T-shaped receiving rod (52) is clamped inside the clamping groove (53), and opposite annular grooves (54) are provided on the outer side of the top surface of the sealing block (51) and the outer side of the bottom surface of the push piece (319), a sealing ring (55) is sleeved inside the annular groove (54), and the outer wall of the sealing ring (55) is slidably sealed on the inner wall of the piezoelectric sealing seat (31).

8. The pressure detection device for kitchen appliances according to claim 7, characterized in that: A recovery steel wire (56) is fixed at the center of the bottom surface of the sealing block (51), and the other end of the recovery steel wire (56) is connected to an upper assembly head (57). A threaded hole (58) is provided at the center of one end of the upper assembly head (57) away from the recovery steel wire (56).

9. The pressure detection device for kitchen appliances according to claim 8, characterized in that: The pot fixing frame (6) comprises a center plate (61), the top surface of the center plate (61) is fixed with annular steel wire hooks (611) distributed at equal intervals, a lower steel wire (612) is fixed at the center of the top surface of the center plate (61), the other end of the lower steel wire (612) is connected to a lower combination head (613), and a threaded strip (614) is fixed to one end of the lower combination head (613) away from the lower steel wire (612), and the threaded strip (614) is screwed on the inner side of the threaded hole (58).

10. The pressure detection device for kitchen appliances according to claim 9, characterized in that: The outer wall side of the center piece (61) is fixed with annular threaded rods (62) distributed at equal intervals. The threaded rods (62) are distributed in a cross shape. A square hole (63) is opened at the center of the threaded rod (62). The end of the threaded rod (62) away from the center piece (61) is provided with a pot wall support bar (64). The center of the side of the pot wall support bar (64) close to the threaded rod (62) is connected to a transverse axis (65). A limit ring (66) is fixed to the outer wall of one end of the pot wall support bar (64). The transverse axis (65) is connected to the outer wall of one end of the pot wall support bar (64). (65) One end away from the pot wall support bar (64) is connected to a square bar (67), and a hexagonal sleeve (68) is sleeved on the outside of the horizontal axis (65). One end of the hexagonal sleeve (68) is provided with a limit rotation groove (69), and the limit rotation groove (69) is sleeved on the outside of the limit ring (66). The end of the hexagonal sleeve (68) away from the limit rotation groove (69) is sleeved on the outside of the threaded rod (62), and the hexagonal sleeve (68) is threadedly connected to the threaded rod (62), and the square bar (67) is inserted into the inner wall of the square hole (63).

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